A 1.2m wading exhaust pipe automatic lengthening and raising device for heavy trucks

Abstract

The invention discloses an automatic lengthening and lifting device for a heavy truck 1.2-meter wading smoke exhaust pipe. The automatic lengthening and lifting device is characterized in that an electric control device support is fixed on a frame longitudinal beam, one end of the support is fixed on the frame longitudinal beam, the other end of the support is hinged to a rotating arm, one end ofa transverse pull rod is hinged on a planet carrier of a planetary gear mechanism of the electric control device, the other end of the transverse pull rod is hinged to the rotating arm, the rotating arm and a lengthening pipe are welded together, one end of a fixing support is fixed on the frame longitudinal beam, the other end of the fixing support welds a support of the lengthening pipe for fixing the electric control device and a gear ring of the planetary gear mechanism together through a spring clip, a gear of a bidirectional motor serves as a sun gear to drive the planetary gear mechanism to rotate, a control switch is used for controlling the bidirectional motor to rotate forward or reversely, a fixed ejector rod is arranged on the planet carrier of the planetary gear mechanism, when the planetary mechanism rotates forward to the uppermost position, the switch of a first limiting power-off device is switched off, the planetary mechanism stops rotating forward, when the planetarymechanism rotates reversely to the lowest position, the switch of a second limiting power-off device is switched off, and the planetary mechanism stops rotating reversely.

Description

technical field [0001] The invention relates to the technology of heavy trucks, in particular to an automatic lengthening and elevating device for a 1.2-meter wading smoke exhaust pipe of a heavy truck. Background technique [0002] At present, the wading requirement of some special heavy trucks reaches 1.2 meters, and the special heavy trucks require that the height of the chassis frame should not be too high in order to ensure that the upper body has a sufficient height. Generally speaking, it is difficult to meet the 1.2-meter wading requirement, because the height of the exhaust port of the exhaust pipe is lower than 1.2 meters, and water will flow back into the engine from the exhaust port, causing the engine to fail smoothly. For such vehicles, in order to meet the 1.2-meter wading requirement, the existing chassis smoke exhaust pipe is usually lengthened and raised to ensure that the smoke exhaust port is much higher than 1.2 meters, but this lengthening is done manua...

AI Technical Summary

Problems solved by technology

[0002] At present, the wading requirement of some special heavy trucks reaches 1.2 meters, and the special heavy trucks require that the height of the chassis frame should not be too high in order to ensure that the upper body has a sufficient height. Generally speaking, it is difficult to meet the 1.2-meter wading requirement, because the height of the exhaust port of the exhaust pipe is lower than 1.2 meters, and the water will flow back into the engine from the exhaust port, causing the engine to fail smoothly.

For such vehicles, in order to meet the 1.2-meter wading requirement, the existing chassis smoke exhaust pipe is usually lengthened and raised to ensure that the smoke exhaust port is much higher than 1.2 meters, but this lengthening is done manually when necessary, and the spare parts box There is a section of smoke exhaust pipe in the middle, which not only takes up space, but also is inconvenient to install and operate

In order to solve the problem that the smoke exhaust pipe of special heavy-duty trucks cannot meet the 1.2-meter wading requirement and the inconvenient disassembly and assembly of the extended smoke exhaust pipe, a device that can automatically lengthen and raise the smoke exhaust pipe through electronic control is invented, and the smoke exhaust pipe can be automatically lengthened and retracted , to ensure normal use and 1.2-meter wading requirements, and save operating time, easy to operate

[0003] Existing heavy-duty trucks with smoke exhaust pipes arranged on the side of the girder, in order to meet the requirement of 1.2 meters, usually adopt the method of artificially lengthening and raising the smoke exhaust pipes, because the lengthening and raising of the smoke exhaust pipes will cause the vehicle to be too wide, so it can only be used when wading It can only be increased when the smoke exhaust pipe is automatically lengthened and raised. At present, there is no automatic lengthening and elevating installation device for the exhaust pipe, which requires personnel to operate, which is time-consuming and laborious, and is inconvenient to use.

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