Construcción de una línea de seguridad de frenado: detalles de composición y mantenimiento del sistema de frenos de aire

¿Cuáles son los componentes principales del sistema de frenos de aire del camión?

el sistema de frenos de aire del camión es una garantía importante para la conducción segura de vehículos grandes. Depende del aire comprimido para accionar el dispositivo de freno y lograr un efecto de frenado eficiente y confiable. El sistema tiene una estructura compleja y está compuesto por una variedad de componentes profesionales. Las distintas partes cooperan entre sí para garantizar que el vehículo pueda frenar de manera estable en diferentes condiciones de trabajo.
compresor de aire
el air compressor is the power source of the entire air brake system. Its main function is to use the engine power to compress the air, compress the air in the atmosphere to a high pressure state, and provide the system with the air source required for braking. The air compressor is usually driven by the engine crankshaft belt, with a sturdy structure and high working efficiency. The compressed air has a high pressure and temperature and needs to be processed later before it can be used.
Secador de aire
el air dryer is installed between the air compressor and the air tank. Its main function is to remove moisture and oil from the compressed air to prevent ice and corrosion inside the system. If the moisture in the air is not removed in time, it will cause the brake line to freeze in cold weather, seriously affecting the braking performance. The air dryer contains a desiccant inside, which can effectively absorb moisture, and is equipped with an automatic drainage device to keep the air dry and clean.
tanque de aire
el air tank is used to store compressed air that has been dried to ensure that the brake system has a stable and continuous air supply when in use. The air tank is usually divided into a main air tank and an auxiliary air tank, and the capacity is determined according to the size of the vehicle and the braking demand. Condensation often accumulates inside the air tank and needs to be discharged regularly to prevent internal corrosion and blockage of the pipeline.
Válvula de freno (válvula de freno de pie)
el brake valve is a key component for the driver to control air brakes. When the brake pedal is pressed, the brake valve adjusts the air pressure to the brake chamber, drives the brake mechanism to operate, and achieves vehicle deceleration or parking. The brake valve used in modern trucks usually integrates pressure feedback and multi-stage adjustment functions to ensure sensitive braking response and safety and reliability.
Cámara de aire de freno
el brake air chamber is the core component that converts air pressure into mechanical force. A diaphragm or piston is arranged in the air chamber, which pushes the connecting rod after receiving the air pressure from the brake valve, and drives the brake shoe or brake pad to press the brake drum or brake disc. Brake chambers are divided into service brake chambers and spring brake chambers. The service brake chamber is mainly responsible for braking when the vehicle is driving, while the spring brake chamber is used for parking and emergency braking.
Cámara de freno de resorte
el spring brake chamber is equipped with a strong preload spring, which uses the mechanical force of the spring to maintain the braking state. This component is mostly used for parking brakes to ensure that the vehicle does not slip when parking. After the engine is started and inflated, the air pressure will compress the spring and release the braking state. The safety performance of the spring brake chamber is extremely important, and the integrity and air pressure of the spring need to be checked regularly.
Biela y regulador de freno
el brake connecting rod transmits the thrust of the brake chamber to the brake mechanism to complete the conversion of air pressure to mechanical force. The regulator is responsible for automatically or manually adjusting the gap between the brake shoe and the brake drum to compensate for the wear of the brake shoe and maintain the braking efficiency. The automatic regulator can reduce the frequency of manual adjustment and improve the stability and safety of the system.
Línea de freno
el brake line includes the air pipeline connecting the compressor, air tank, brake valve and air chamber. The pipeline material must be resistant to high pressure, corrosion and cold, and is usually made of a combination of rubber hoses and steel hard pipes. Reasonable pipeline design can prevent air pressure leakage and mechanical damage, and is the basis for ensuring the air tightness and stability of the brake system.
Válvula de seguridad
el safety valve is installed at the air tank and key pipeline positions to prevent the system air pressure from exceeding the set upper limit. When the system air pressure rises abnormally, the safety valve automatically opens to release excess gas to avoid bursting of the air tank or pipeline and ensure system safety. The safety valve must be inspected regularly to ensure its reliability.
Dispositivos auxiliares
el air brake system is equipped with a variety of auxiliary devices, such as barometers, air pressure alarms and pressure sensors. The barometer provides the driver with real-time air pressure information, and the air pressure alarm sounds an alarm when the air pressure is lower than the safety threshold, reminding the driver to deal with it in time. The pressure sensor provides data support for the vehicle's electronic control unit to ensure intelligent management of the system.

¿Cómo convierte la cámara de freno la presión del aire en fuerza mecánica?

el brake chamber is a key actuator in the truck air brake system. Its core function is to convert the air pressure energy of compressed air into mechanical force, thereby driving the brake mechanism to slow down or stop the vehicle. The design structure and working principle of the brake chamber are directly related to the response speed of the brake system and the stability of the braking force.
Estructura básica de la cámara de freno.
el brake chamber is mainly composed of a chamber shell, a diaphragm (or piston), a push rod and a spring. The chamber shell is made of solid metal material, and the interior is divided into two main spaces: the air pressure chamber and the spring chamber. The diaphragm is usually made of wear-resistant rubber material, with good sealing performance and can withstand repeated changes in air pressure. The push rod connects the diaphragm or piston to transmit the thrust generated by the air pressure to the brake mechanical part.
Distinción funcional entre la cámara de presión de aire y la cámara de resorte
el air pressure chamber is the part of the brake chamber that receives compressed air. Air enters the air pressure chamber from the brake valve through the pipeline, and the air pressure increases, pushing the diaphragm or piston outward. The spring chamber is equipped with a preloaded spring to provide reverse force and is used for parking brakes. When the air pressure is low, the spring force pushes the push rod back to the initial position and releases the brake state.
Principio de funcionamiento de la conversión de presión de aire a fuerza mecánica.
Cuando el conductor pisa el pedal del freno, la válvula del freno introduce aire comprimido en la cámara de presión de aire de la cámara de aire del freno. La presión del aire en la cámara de presión de aire aumenta rápidamente, actuando sobre la superficie del diafragma para generar empuje. La magnitud del empuje es proporcional a la presión del aire y al área del diafragma. El diafragma se expande hacia afuera bajo la acción de la presión del aire, empujando la varilla de empuje conectada para que se mueva axialmente. El movimiento de la varilla de empuje impulsa la biela y el mecanismo de ajuste para convertir la energía de la presión del aire en fuerza mecánica, que se aplica a la zapata o pastilla de freno para lograr la sujeción del tambor o disco de freno.
Transmisión mecánica del movimiento de la varilla de empuje.
el end of the push rod is usually connected to the brake connecting rod through a pin or a ball head. The axial movement of the push rod drives the brake mechanism to work. The brake connecting rod converts the linear motion of the push rod into the clamping motion of the brake shoe, forming friction and generating braking force. The distance the push rod moves determines the magnitude of the braking force, and a reasonable push rod stroke design ensures the linearity and sensitivity of the braking effect.
el difference between diaphragm and piston and their influence
el diaphragm structure in the brake chamber uses a flexible diaphragm to transmit air pressure thrust. It has a simple structure and light weight, and is suitable for light and medium trucks. The piston chamber uses a rigid piston instead of a diaphragm, which has better sealing and is suitable for heavy vehicles. The piston structure reacts faster to changes in air pressure, and the mechanical force transmission is more stable, which improves braking performance and reliability.
Funciones especiales de las cámaras de freno de resorte.
el spring brake chamber is equipped with a large preload spring outside the air pressure chamber, which is often used for parking brakes. During normal operation, the air pressure compresses the spring, the push rod is in a loose state, and the brake is released. When parking or emergency braking, the system air pressure is cut off, the spring releases energy to push the push rod, and the mechanical force acts on the brake mechanism to lock the wheel and achieve parking brake. The spring brake chamber ensures that the vehicle can remain in a safe parking state even if the air source is interrupted.
Estanqueidad al aire y velocidad de respuesta de la cámara de freno.
el air tightness inside the chamber directly affects the effective conversion and response speed of air pressure energy. Poor sealing will cause air pressure leakage, weaken the push rod pushing force, and increase the risk of brake failure. High-quality diaphragm materials and sealing design ensure that the brake chamber maintains good performance under extreme working conditions. The rapid air pressure charging and discharging process ensures rapid braking response and improves driving safety.
Mantenimiento y manifestaciones de fallos de las cámaras de freno.
Las fallas comunes, como la rotura de los diafragmas de la cámara de freno, el atasco de la varilla de empuje o la fatiga del resorte, pueden provocar fallas en los frenos o fallas en el freno de estacionamiento. Comprobar periódicamente la estanqueidad de la cámara de aire y detectar la carrera de la varilla de empuje y el estado del resorte son la clave para garantizar la fiabilidad del sistema de frenos. Las pruebas de presión de aire y la detección de fugas pueden detectar peligros ocultos de antemano y evitar accidentes de conducción.

Por qué los secadores de aire son importantes para los sistemas de frenos de aire

Secador de aires are an indispensable key component in truck air brake systems. Its main function is to remove moisture and impurities from compressed air to ensure the normal operation and long-term durability of the internal pipes and components of the brake system. The role of air dryers is directly related to the reliability, safety and maintenance cost of the brake system.
La humedad en el aire comprimido y sus peligros.
el air brake system relies on an engine-driven air compressor to supply high-pressure air. After the air is compressed, the temperature rises, and the water vapor in the air begins to condense into water droplets during the cooling process. If these moisture are not effectively treated, they will enter the air tank and pipeline with the air, causing a variety of serious problems. Condensed water accumulates inside the pipeline and may freeze in a low temperature environment, blocking the air path and causing brake failure. Moisture can also cause rust and corrosion of internal parts of the system, reduce equipment life and cause leaks. Excessive moisture can also affect air pressure stability and cause insensitive brake response.
Principio de funcionamiento del secador de aire.
Secador de aires are usually installed between the air compressor and the air tank. Its core part is a desiccant (such as silica gel or molecular sieve), which can efficiently absorb moisture from the air. When compressed air enters the dryer, moisture is absorbed by the adsorbent, and the air discharged after treatment remains dry and clean. Modern air dryers are mostly equipped with automatic drain valves to regularly discharge moisture and impurities accumulated in the adsorbent to prevent water accumulation and blockage, ensuring a long-lasting and stable drying effect.
Prevención de fallos por hielo en el sistema de frenos.
En ambientes de baja temperatura, la humedad en la tubería de aire es muy fácil de congelar, bloqueando la válvula del freno y la cámara de aire, provocando fallas en los frenos o incluso la pérdida de control del vehículo. Los secadores de aire eliminan eficazmente la humedad y evitan la acumulación de agua condensada, lo que reduce en gran medida el riesgo de obstrucción por hielo. Especialmente para los vehículos que circulan por zonas frías o en invierno, la importancia de los secadores de aire es especialmente destacada, que garantiza directamente la seguridad y estabilidad de la frenada del vehículo.
Proteger los componentes clave del sistema de frenos.
el internal pipes, valves, air chambers and air tanks of the braking system are all precision machinery and sealing components, which are extremely susceptible to moisture erosion. Long-term water vapor intrusion can cause metal rust, aging of sealing rings, and valve jamming, affecting braking performance. Air dryers extend the service life of these key components by providing dry air, reduce failure rates and maintenance costs, and improve the overall operating efficiency of vehicles.
Mejorar la estabilidad de la presión del aire del sistema y la velocidad de respuesta.
La humedad excesiva puede provocar fluctuaciones y fugas en la presión del aire, lo que afecta la estanqueidad y la estabilidad de la presión del aire del sistema de frenos. Los secadores de aire pueden garantizar que el aire que ingresa al tanque de aire y a las tuberías esté seco y puro, y garantizar un suministro estable de presión de aire. La presión de aire estable respalda la acción eficiente de la cámara de freno, mejora la velocidad de respuesta de frenado y la fuerza de frenado y mejora la seguridad de conducción.
Reducir la dificultad y el costo de mantenimiento.
Los sistemas sin secadores de aire o con malos efectos de secado requieren drenaje frecuente, limpieza de tuberías y reemplazo de piezas corroídas y dañadas, lo que aumenta la frecuencia y los costos de mantenimiento. Los secadores de aire reducen la intervención manual y la carga de trabajo de mantenimiento al deshumidificar y drenar el agua automáticamente. La tasa de fallas del sistema disminuye, el tiempo de funcionamiento del vehículo aumenta y el costo operativo se reduce significativamente.
Tipos y escenarios aplicables de secadores de aire.
Los secadores de aire comunes incluyen secadores de adsorción y secadores refrigerados. Los secadores de adsorción absorben la humedad a través de un desecante, tienen una estructura simple y se usan ampliamente en sistemas de frenos de aire de camiones. Los secadores frigoríficos condensan y descargan la humedad reduciendo la temperatura del aire, lo que es adecuado para requisitos ambientales especiales. Se combinan diferentes tipos de secadoras con el entorno operativo del vehículo y las condiciones de trabajo para seleccionar el modelo apropiado y garantizar el mejor efecto de secado.
Puntos clave para el mantenimiento de secadores de aire.
El desecante debe reemplazarse periódicamente para evitar fallos por saturación. La función de la válvula de drenaje debe mantenerse normalmente para garantizar la eliminación oportuna del agua condensada y las impurezas. Se debe revisar la carcasa y la interfaz del secador de aire para detectar fugas y un buen rendimiento de sellado. Un mantenimiento inadecuado provocará que la secadora falle, lo que a su vez afectará el rendimiento de seguridad de todo el sistema de frenos.

¿Cómo controla la válvula de freno (válvula de pie) la presión del aire de freno?

el brake valve, also known as the foot brake valve, is a key component in the truck air brake system where the driver directly controls the brake air pressure. Its main function is to accurately adjust the air pressure according to the force and stroke of the driver's foot on the brake pedal, and drive the brake chamber to achieve vehicle braking. The design and working principle of the brake valve directly affect the response speed, stability and safety performance of the brake system.
Estructura básica de la válvula de freno.
el brake valve is mainly composed of a valve body, a piston or a sliding valve, a spring, a sealing ring and an adjustment mechanism. There are multiple air passages inside the valve body, which are responsible for guiding the air flow. The piston or sliding valve moves under the action of the spring force and air pressure to control the air flow interruption. The brake pedal drives the piston to move through a mechanical connecting rod or an electronic sensor to complete the air pressure regulation.
Principio de funcionamiento de la válvula de freno.
Cuando el conductor pisa el pedal del freno, el pistón dentro de la válvula del freno avanza con la carrera del pedal. El movimiento del pistón cambia el estado de apertura y cierre del circuito de aire dentro del cuerpo de la válvula y controla el aire desde el tanque de aire a la cámara de presión de aire de la cámara de freno. Cuanto más se pisa el pedal, más se abre la válvula y mayor es la presión del aire que ingresa a la cámara del freno. El aumento de la presión del aire empuja el diafragma o pistón de la cámara de freno, generando un empuje mecánico para lograr el frenado. Suelte el pedal, el pistón se reinicia, el circuito de aire se cierra, se libera la presión del aire y se suelta el freno.
Control preciso de la regulación de la presión del aire de los frenos.
el brake valve achieves continuous variable adjustment of air pressure through an internal adjustment mechanism. The valve body is designed with a pressure adjustment spring and a feedback device, which can finely adjust the output air pressure according to the pedal force. Accurate air pressure control ensures a smooth transition of braking force, avoids braking shock and vehicle shaking, and improves driving comfort and safety.
Diseño de circuito de aire multidireccional y garantía de seguridad.
el brake valve is equipped with multiple air circuits, which lead to different air tanks and air chambers to ensure stable air pressure supply. Some brake valves are equipped with a dual-circuit design, one circuit controls the front axle air chamber and the other controls the rear axle air chamber to improve braking safety. Some advanced brake valves also have an air pressure protection function. When the system air pressure is lower than the set value, the braking force is automatically limited to prevent brake failure.
Velocidad de respuesta y rendimiento de sellado de la válvula de freno.
el internal sealing ring and air circuit design of the brake valve directly affect the response speed of air pressure changes. Efficient sealing prevents air leakage and ensures stable air pressure. The brake valve with a compact structure and reasonable spring force can quickly respond to the driver's braking command, achieve rapid braking response, and enhance driving safety.
Coordinación de la válvula del freno de pie y el sistema de freno de estacionamiento.
el foot brake valve is mainly responsible for service braking during driving. The brake valve of some models integrates the parking brake function or is linked with the parking brake valve. The spring brake chamber is controlled by air pressure changes to realize the opening and release of the parking brake. The system design ensures that the parking brake and foot brake work together to meet different driving needs.
Manifestaciones de mantenimiento y fallas de las válvulas de freno.
El envejecimiento de los sellos de las válvulas de freno, el atasco del pistón o la falla del resorte son causas comunes de falla. Esto provoca una regulación insensible de la presión del aire, fugas de aire o un frenado desigual. Verifique periódicamente la estanqueidad, el recorrido del pedal y el estado de los componentes internos de la válvula de freno para garantizar su funcionamiento normal. Si se encuentra una falla, se debe reparar o reemplazar a tiempo para evitar riesgos de seguridad.

¿Qué papel juega la válvula de seguridad en el sistema de frenos de aire?

el safety valve is a vital protective component in the air brake system. It is responsible for releasing excess air pressure when the system pressure rises abnormally, preventing system components from being damaged by overpressure, and ensuring the safety and stable operation of the entire brake system. Although the safety valve does not directly participate in the braking action, it plays an important role in the operation of the system.
el basic structure and principle of the safety valve
el safety valve is usually composed of a valve body, a valve seat, a spring, a valve core and an adjustment mechanism. The valve core seals the valve seat under the action of the spring force to maintain the closed state of the system. The spring preload sets the maximum safe air pressure of the system. When the system air pressure exceeds the set value, the air pressure overcomes the spring force to push the valve core open, and the overpressure gas is released through the exhaust port. After the air pressure drops to a safe range, the spring resets the valve core, reseals the valve seat, and the system returns to normal working state.
Controle el límite superior de la presión del aire para evitar la sobrepresión del sistema.
el air brake system is supplied with air by an air compressor. If the control system fails or the compressor continues to work without stopping, the air pressure may continue to rise. Overpressure can damage and even burst components such as air reservoirs, brake valves, pipelines, and air chambers. The safety valve opens the exhaust in time before the air pressure reaches a dangerous level through the set opening pressure (usually 10%~15% of the upper limit of the system working pressure), playing the role of "the last line of defense" to avoid system damage and accidents.
Proteger el compresor de aire y los componentes del circuito de aire.
el air compressor is a high-frequency component in the brake system, and it is very easy to be damaged due to excessive back pressure during long-term operation. The safety valve releases excess air pressure in the system compression chamber or the main air tank, effectively reducing the compressor load and preventing problems such as shaft seal damage and cylinder jamming caused by back pressure. At the same time, the safety valve also protects the pipeline interface and air circuit valve to avoid impact rupture caused by sudden pressure changes and extend the service life of the system.
Garantizar el funcionamiento estable del sistema de frenado del vehículo.
el air brake system must operate in a stable air pressure environment. Excessive air pressure not only damages the components, but also causes excessive braking response and excessive braking force, causing tire locking and vehicle loss of control. The safety valve limits the peak pressure and keeps the system pressure within a safe range, ensuring that the braking response is linear and controllable, and enhancing the driver's sense of safety and predictability.
el rationality of the set pressure value and the system match
el opening pressure of the safety valve should be higher than the normal working pressure of the brake system (usually 0.81.0 MPa), but lower than the maximum pressure bearing capacity of the system. It is generally set to 1.11.2 MPa. If the pressure is set too low, it is easy to open frequently and cause unstable air pressure; if it is set too high, it loses its protective effect. Reasonable setting requires comprehensive consideration of factors such as vehicle air path volume, braking frequency, and compressor air output to ensure that the safety valve intervenes only under real overpressure conditions, taking into account safety and system efficiency.
Lugar de instalación y alcance de acción de la válvula de seguridad.
el safety valve is usually installed on the main air tank or the main line of the total air path, giving priority to releasing the total pressure of the system. Some systems are also equipped with local safety valves on branch air tanks or independent air paths to protect branch circuit components. The installation location should ensure smooth exhaust and stay away from high temperature or flammable areas to prevent secondary risks caused by exhaust. The multi-level protection design enhances the robustness of the system and improves the safety level of the vehicle.
Requisitos de material y durabilidad de las válvulas de seguridad.
Válvula de seguridads are subjected to high-pressure gas for a long time, and key components such as valve cores, springs, and valve seats must have high strength, corrosion resistance, and fatigue resistance. Common materials include stainless steel, chromium-molybdenum alloy, engineering plastics, etc. The sealing part must have high temperature resistance and pressure change resistance to ensure that the valve remains sealed reliably during high-frequency opening and closing to avoid air pressure leakage or malfunction.
Inspección de mantenimiento y riesgo de fallo de válvulas de seguridad.
Válvula de seguridads are passive action devices. Long-term non-operation is prone to problems such as spring fatigue, valve core jamming, and seal aging. Regular opening and closing tests, cleaning of carbon deposits and foreign matter, and testing of opening pressure are necessary means to maintain its functional reliability. A failed safety valve may not be able to open when overpressure occurs, resulting in system damage or accidents; it may also open prematurely, affecting the inflation speed and efficiency of the brake system.
Cooperación entre la válvula de seguridad y el sistema de regulación de presión.
Los sistemas de frenos de aire suelen estar equipados con reguladores de presión, interruptores de presión y válvulas de seguridad que funcionan juntos. El regulador de presión controla el arranque y la parada del compresor, el interruptor de presión monitorea la retroalimentación de la presión del aire y la válvula de seguridad se utiliza como un dispositivo de protección redundante para garantizar que múltiples mecanismos de seguridad sean efectivos. El diseño y ajuste de la válvula de seguridad debe coordinarse con todo el sistema de control de presión de aire para evitar activaciones falsas o funciones superpuestas y mejorar la seguridad general del sistema.

¿Cuáles son las prioridades de mantenimiento diario del sistema de frenos de aire?

Como dispositivo de seguridad crítico en vehículos pesados ​​(como camiones, autobuses y remolques), la estabilidad operativa del sistema de frenos de aire está directamente relacionada con el efecto de frenado y la seguridad del tráfico de todo el vehículo. El sistema consta de un compresor de aire, un depósito de aire, un secador, una válvula de freno, una cámara de aire de freno, un tubo de aire y una variedad de componentes de control. Tiene una estructura compleja y opera con frecuencia. El mantenimiento diario científico y estandarizado no solo puede prolongar la vida útil del sistema, sino también prevenir eficazmente fallas repentinas de los frenos.
Comprobar la estanqueidad del sistema.
el air tightness of the system is the core of ensuring stable air pressure. During maintenance, it is important to check whether there is air leakage at various pipe joints, hoses, connectors, welds of air reservoirs, and valve body interfaces. Use soapy water smearing method or a special leak detector to detect subtle leaks. For rubber hoses, check whether they are aging, cracked, or falling off. Good air tightness can prevent the system air pressure from dropping too quickly, ensuring the reliability of emergency braking and parking brakes.
Drene periódicamente el agua y las impurezas del tanque de aire.
el air tank is a gathering place for compressed air and is also the main area for condensed water and impurities to deposit. If it is not discharged in time, the water will corrode the cylinder, block the valve, and seriously affect the braking response. The air tank drain valve should be opened every day after parking to drain manually, especially in an environment with high humidity or low temperature. Some vehicles are equipped with automatic drainage devices, and their drainage function should also be checked regularly to prevent water accumulation.
Verifique el estado de funcionamiento del secador de aire.
el air dryer is the first line of defense to prevent moisture from entering the brake system. It is necessary to regularly check whether the dryer filter element or adsorbent is saturated and ineffective. If it is found that the drying effect has deteriorated or a large amount of water is discharged from the air tank, the dryer filter element should be replaced in time. Note that the dryer exhaust port should be unobstructed and the exhaust valve should be sensitive to prevent water accumulation or freezing.
Mantenga la válvula de freno receptiva
el brake valve is the most directly related component of the air brake system to the driver's control. The brake valve pedal stroke should be checked regularly to see if it is appropriate, if the action is smooth, and if there is any jamming, air leakage or poor return. Check if the air chambers respond consistently during braking to avoid brake deflection or tail swinging due to asynchronous braking of the front and rear wheels. Disassemble and clean or replace seals if necessary.
Comprobar el estado de la cámara de freno y de la varilla de empuje.
el brake chamber converts air pressure into mechanical braking force, and its reliability directly affects the braking effect. Focus on checking whether the air chamber shell is deformed, rusted or cracked, whether the push rod is freely retracted, and whether the dust cover is intact and undamaged. The spring mechanism of the parking brake spring chamber must function normally and the exhaust channel must be unobstructed. The push rod stroke must meet the manufacturer's standards to avoid insufficient braking force or damage to the air chamber.
Mantenga firmemente la tubería de aire y la conexión de la junta.
el air pipe connecting the various components in the brake system needs to have sufficient pressure resistance and heat resistance. Check the pipeline for looseness, detachment, rupture, expansion or wear on a daily basis. In particular, the hoses at the chassis or active parts of the vehicle are susceptible to vibration and dust. The connection joints should be tightened reliably, and the quick-connect joints should be cleaned of foreign objects regularly to prevent leakage. Pipes used for a long time should be replaced according to the degree of aging.
Compruebe el sistema de freno de emergencia y freno de estacionamiento.
El freno de emergencia y el freno de estacionamiento son mecanismos importantes para garantizar que el vehículo aún pueda detenerse de manera confiable cuando se corta el gas o se apaga el motor. El mantenimiento diario debe verificar si la cámara de aire del freno de resorte puede aplicar el freno automáticamente cuando se corta el gas. La palanca o interruptor de estacionamiento debe ser preciso y sensible. La capacidad de mantenimiento de la presión de estacionamiento después de que se corta el sistema debe cumplir con el estándar para evitar que el vehículo se deslice debido a una fuga de presión de aire.
Detección de manómetro y dispositivo de alarma.
el pressure gauge on the instrument panel is an important basis for the driver to understand the system status. It is necessary to confirm that the pressure gauge display is accurate and without deviation on a daily basis. The high-pressure and low-pressure alarm indicators and buzzers should alarm in time when the air pressure is abnormal. If necessary, check the working status of the electrical circuit and sensor to avoid blind driving caused by the failure of the alarm system.
Realice una prueba de estabilidad de la presión del aire del sistema
Observe la velocidad de acumulación de presión de aire haciendo funcionar el motor al ralentí y verifique si la salida del compresor es suficiente. El sistema debe mantener la velocidad de caída de presión después de apagar el motor para cumplir con el estándar. El tiempo de respuesta del freno y la tasa de caída de presión se pueden observar pisando manualmente el pedal del freno para juzgar la capacidad de respuesta del sistema y la capacidad de almacenamiento de aire.