Accelerator control device with hand and foot linkage

Abstract

The invention discloses a hand and foot linkage accelerator control device which comprises a manual accelerator and a foot pedal accelerator, wherein the manual accelerator comprises a manual operating mechanism and a manual speed regulation rotating handle which is in transmission connection with the manual accelerator; the foot pedal accelerator comprises a bracket, a rotating shaft, a pedal, and a foot speed regulation rotating handle which is fixedly connected with the rotating shaft and can reset by means of a return spring; the manual speed regulation rotating handle is rotatably connected with the rotating shaft; the foot speed regulation rotating handle is in transmission connection with an engine speed regulation rocker arm through a flexible shaft; the foot speed regulation rotating handle is positioned in front of the manual speed regulation rotating anticlockwise direction, and the foot speed regulation rotating handle is driven to synchronously rotate when the manual speed regulation rotating handle rotates anticlockwise. According to the hand and foot linkage accelerator control device, previous spring box and mechanical connecting rod structures are omitted, and by adoption of the two-section flexible shaft, the device is simple in connecting arrangement, simple in structure, fewer in parts, high in stability, convenient to mount and maintain and low in cost.

Description

technical field [0001] The invention relates to the technical field of accelerator control devices for engineering vehicles, in particular to an accelerator control device with hand and foot linkage. Background technique [0002] For machines in the construction machinery industry, especially bulldozers, the engine is the main power output device. During the operation of the machine, the power of the engine needs to be adjusted according to the working conditions and usage requirements. The power adjustment of the engine is realized by controlling the fuel supply of the engine with the throttle. , Usually the throttle control adopts the structure of hand and foot integrated throttle, that is, the hand throttle controls the maximum speed of the machine, and the foot throttle controls the deceleration of the machine within this speed range. During the working process, when the foot accelerator is stepped on, the accelerator will decrease, and when it is released, it will autom...

AI Technical Summary

Problems solved by technology

During the working process, when the foot accelerator is stepped on, the accelerator will decrease, and when it is released, it will automatically return to its position. Therefore, it is required that the hand accelerator action must drive the foot accelerator, but the foot accelerator cannot drive the hand accelerator.

The traditional bulldozer throttle device adopts a spring box and a space mechanical linkage structure, the space structure is complex, there are many connection hinge points, the number of parts is large, the maintenance and installation are particularly inconvenient, and the reliability is particularly low

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