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Speed changing box driving gear shifting through push-pull flexible shafts

A push-pull flexible shaft and gearbox technology, applied in the gearbox field, can solve problems such as ergonomics cannot be realized, and achieve the effects of smooth engagement, low resistance and simple structure

Inactive Publication Date: 2019-06-07
ZHEJIANG HAITIAN MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the shifting stroke is large, it interferes with other components in the cab, and the best ergonomics cannot be realized

Method used

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  • Speed changing box driving gear shifting through push-pull flexible shafts
  • Speed changing box driving gear shifting through push-pull flexible shafts
  • Speed changing box driving gear shifting through push-pull flexible shafts

Examples

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Embodiment Construction

[0016] Below in conjunction with accompanying drawing, the present invention will be further described with specific embodiment, see figure 1 —3: A gearbox that utilizes a push-pull flexible shaft to drive shifting, including a gearbox body, a gear shaft in the gearbox body, a shift gear and a shift fork for shifting the shift gear. The upper cover of the gearbox body 1 A shift fork shaft box 4 is extended upwardly on the opening provided on the top, and more than one set of through holes are correspondingly arranged on the opposite side walls of the middle part of the shift fork shaft box 4, and a shift fork shaft 2 is pierced in each group of through holes. , the shift fork shaft 2 extending into the shift fork shaft box 4 is fixedly connected with a short shift lever 8, the lower end of the short shift lever 8 is connected with the shift fork that toggles the transmission gear, and the shift fork stretches out of the shift fork shaft case 4 One end of the shaft 2 is provide...

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Abstract

The invention belongs to the technical field of agricultural machines and relates to a speed changing box driving gear shifting through push-pull flexible shafts. The speed changing box comprises a speed changing box body, a gear shaft, a speed changing gear and shifting forks shifting the speed changing gear for gear shifting, and a shifting fork shaft box is arranged on an opening in an upward-extending mode, wherein the opening is formed in an upper cover of the speed changing box body; and one or more sets of through holes are correspondingly formed in the two opposite side walls of the middle of the shifting fork shaft box, a shifting fork shaft is arranged in each set of through holes in a penetrating mode, short shift rods are fixedly connected to the shifting fork shafts extendinginto the shifting fork shaft box, the lower ends of the short shift rods are connected with the shifting forks shifting the speed changing gear, universal joints capable of being connected with a speed changing control device are arranged at the ends, extending out of the shifting fork shaft box, of the shifting fork shafts, an annular oil groove is formed in the inner side of the inner wall of each through hole, an annular sealing groove is formed in the outer side of the inner wall of the through hole, a sealing ring is arranged in each annular sealing groove, a shifting fork box cover is arranged at the upper end of the shifting fork shaft box, and an oil injection nozzle communicating with each annular oil groove is formed in the shifting fork box cover. The speed changing box is suitable for being applied to the various agricultural machines.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, in particular to a gearbox for shifting gears driven by a push-pull flexible shaft. Background technique [0002] Small grain combine harvesters and other front drive axles are equipped with gearboxes. When shifting gears, the joystick located on the upper part of the gear transmission gearbox is required. In order to improve working conditions, small grain combine harvesters are required to have a cab. The general requirements for shifting joysticks Elongated, sometimes made into a multi-angle curved shape, not only increases the stroke when the gear is engaged, but also deviates from the original center of the gear shift lever after being bent, and is easy to disengage after being shaken. After the shifting stroke is large, it will interfere with other components in the cab, and the best ergonomics cannot be realized. Contents of the invention [0003] The object of the presen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/02F16H57/04F16H61/26
Inventor 陈奇
Owner ZHEJIANG HAITIAN MACHINERY
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