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Dragging starting system and engineering equipment using same

A technology of starting system and sliding gear, which can be used in starting devices with fluid drive, starting devices with mechanical power storage, starting of engines, etc., which can solve the problem of high labor intensity of drivers.

Active Publication Date: 2021-06-25
ZHENGZHOU YUTONG HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a drag start system to solve the technical problem of using a push-pull flexible shaft to drive the sliding gear in the prior art, resulting in a relatively high labor intensity for the driver; equipped to solve the above technical problems

Method used

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  • Dragging starting system and engineering equipment using same
  • Dragging starting system and engineering equipment using same

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0050] Such as figure 1 and figure 2 As shown, when the external temperature is low and the voltage of the storage battery is not enough to start the engine, the drag start system of the present invention is used to start the engine. The drag start system comprises a drag start device 7, and the structure of the drag start device 7 is as follows: figure 2 shown.

[0051] The drag starting device 7 includes an output gear 11, and the output gear 11 is fixedly installed on the output shaft of the gearbox. The drag starter 7 also includes a base 20, the base 20 is fixed on the fuselage of the engineering equipment during use, specifically can be fixed on the gearbox, the base 20 is fixedly equipped with a drag starter pump 14, and the drag starter pump 14 The input shaft 13 is axially slidably provided with a sliding gear 12 , and on the circumferential direction of the input shaft 13 , the input shaft 13 and the sliding gear 12 are fixedly assembled. In order to realize th...

Embodiment 1

[0063] In Embodiment 1, the fluid power source includes an air compressor and a hydraulic pump. In this embodiment, only one of the fluid power sources is reserved.

specific Embodiment 3

[0065] In Embodiment 1, the solenoid valve has a return spring, and during normal driving, the fluid power source communicates with the piston cylinder by means of the return spring. In this embodiment, the solenoid valve has two electromagnets arranged opposite to each other. One electromagnet drives the valve core to move so that the fluid power source communicates with the piston cylinder, and the other electromagnet drives the valve core to move so that the piston cylinder communicates with the pressure relief port. .

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Abstract

The invention relates to a dragging starting system and engineering equipment using the same. The dragging starting system comprises an output gear, a dragging starting pump and a shifting fork, wherein a sliding gear is assembled on an input shaft of the dragging starting pump in a sliding mode; the shifting fork and the sliding gear are assembled together in a mode of relative rotation in the circumferential direction and relative fixation in the axial direction; the dragging starting system further comprises a piston cylinder and a piston driving mechanism, the piston cylinder comprises a cylinder body and a piston, and the telescopic end of the piston is fixedly connected with the shifting fork; the piston driving mechanism comprises an elastic piece and a fluid power source, and the elastic piece is used for driving the piston to move to a position where the sliding gear is meshed with the output gear; and the fluid power source is used for feeding fluid into the cylinder body so as to overcome the action of the elastic piece and enable the piston to move to a position where the sliding gear is separated from the output gear. According to the dragging starting system, meshing and separation of the sliding gear and the output gear can be completed only by controlling a valve structure, and the labor intensity is low.

Description

technical field [0001] The invention relates to a tow start system and engineering equipment using the tow start system. Background technique [0002] When the vehicle is in a low-temperature environment, the voltage of the battery cannot support the starting of the engine, and the current tire-type construction vehicles usually do not have a drag starter device, and the engine and the gearbox are coupled and disconnected through a hydraulic clutch, resulting in the failure of the vehicle to start. [0003] A currently existing dragging device is shown below. The dragging device includes an output gear fixedly installed on the output shaft of the gearbox, and a dragging pump. The input shaft of the dragging pump slides axially and prevents rotation in the circumferential direction. Equipped with a sliding gear, the sliding gear can slide to a position engaged with the output gear, and can also slide to a position disengaged from the output gear. When the vehicle cannot star...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02N7/06F02N15/04
CPCF02N7/06F02N15/04
Inventor 段飞金鑫薛现振郑长波王海军王学敏张建昌
Owner ZHENGZHOU YUTONG HEAVY IND
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