Con la amplia aplicación de apisonadoras, sus propios defectos han ido surgiendo gradualmente. La tasa de fallas de los rodillos compactadores en el trabajo es alta, lo que afecta en gran medida la calidad del trabajo. A través del análisis de las fallas comunes de los compactadores de caminos, este trabajo propone soluciones específicas a las fallas de los compactadores de caminos.
1. Método de eliminación de aire de la línea de combustible
El motor diésel de la apisonadora se caló debido a la falta de diésel en el tanque de combustible durante el uso. Después de que se apague el motor diesel, aunque se agregue diesel al tanque de combustible, en este momento ha ingresado aire a la tubería de diesel y el suministro de combustible no se puede restaurar usando la bomba manual.
Para eliminar el aire en la tubería de diesel y hacer que el motor diesel arranque sin problemas, tomamos los siguientes métodos: primero, busque un recipiente pequeño y contenga una cierta cantidad de diesel, y colóquelo en una posición ligeramente más alta que el diesel. bomba; en segundo lugar, coloque el tanque de combustible Retire la tubería diesel que conecta la bomba de aceite manual y retire el aceite diesel en este pequeño recipiente; nuevamente, bombear el gasóleo con la bomba de aceite manual para eliminar el aire en el circuito de aceite de baja presión; finalmente, instale la tubería de diesel que conecta el tanque de combustible a la bomba de aceite manual. Máquina de prueba, el motor diesel arranca normalmente.
2. Método de eliminación de daños en la válvula solenoide
If it is difficult to start the diesel engine, it will take a long time to start the diesel engine. We initially thought that it was caused by the poor atomization of the injector, but the inspection of the injector and the fuel injection pump were all good. When I checked the start solenoid valve again, it was found that its solenoid was not attractive.
We will remove the starting solenoid valve, and when the fuel valve stem connecting the fuel injection pump and the solenoid valve is pulled by hand, the diesel engine can be started smoothly, which means that the solenoid valve has been damaged. Since the new solenoid valve cannot be purchased in the nearby market temporarily, we use thin copper wire to bind the fuel injection pump stem to prevent it from returning, and thicken the solenoid valve gasket to prevent the fuel injection pump stem hole. Oil leaks from the mouth. After the above treatment, the solenoid valve is reassembled, and the roller is put into use. After purchasing a new start solenoid valve, it can be replaced.
3. Deformation repair method of front wheel support
When the static pressure road roller failed to start, in order to start the road roller, a loader was used on site to push and start the road roller. As a result, the frame supporting the front wheel of the road roller was deformed, and the welding part of the shaft sleeve matched with the front fork and the vertical shaft was dislocated. , the roller cannot be used.
Usually, to repair this fault, the front wheel frame, vertical shaft and front fork must be disassembled, but such repairs are time-consuming and laborious. To this end, we have adopted the following simple recovery method: first, adjust the front wheel to the forward direction; secondly, cushion the front wheel, the front wheel frame and the front fork beam with wood, so that it can move forward when turning the steering wheel. The wheel does not rotate; again, turn the steering wheel, remember the total number of turns of the steering wheel, turn to the limit position and then turn back half of the total number of turns, the misaligned front fork and the shaft sleeve matched with the vertical shaft can return to the correct position; then , Remove the 14 fixing bolts on both sides of the front wheel frame, use the jack to lift the front wheel frame about 400mm to make it away from the front wheel axle; finally, use electric welding to weld the vertical shaft bushing firmly, loosen the jack, and drop the front Wheel fork, install the front wheel frame and the front wheel axle. In this way, only one person can adjust the deformation of the front wheel frame in place.
4. Repair method for poor positioning of gear lever
The locating pin of the shifting lever equipped with the static calendering roller is easy to fall out or be cut off, thus causing the shifting lever to be unable to be positioned. The locating pin is 4mm in diameter and is used to prevent the gear lever from turning.
In order to solve this problem, we take the following methods: first, expand the diameter of the pin hole of the shift lever to 5mm, and tap the M6 internal thread; secondly, modify the width of the pin slot of the shift lever to 6mm; finally, configure 1 M6 screw and 1 For M6 nut only, screw the screw into the seat pin hole, back it half a turn, and then tighten the nut.
5. The solution to the oil leakage of the sealing ring
La válvula vibratoria del rodillo vibratorio perdía aceite. Después de reemplazar el anillo de sellado en forma de Y, el aceite se filtró después de un corto período de uso. La inspección encontró que después de un uso prolongado de la válvula de vibración, el desgaste entre la cubierta superior del núcleo de la válvula y el núcleo de la válvula era grave.
Para resolver este problema, adoptamos el método de agregar un anillo de sellado en forma de O o plano, es decir, agregar un anillo de sellado en forma de O o plano a la ranura del anillo de sellado en forma de Y. No hay fenómeno de fuga de aceite después de instalar la válvula de vibración con un anillo de sellado, lo que demuestra que el método logra buenos resultados.