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Wet type four-wheel drive transfer case structure and tractor

A transfer case, wet-type technology, applied in the field of tractors, can solve problems such as complicated operation, and achieve the effect of simple and light operation and easy operation.

Pending Publication Date: 2017-10-03
LOVOL HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, four-wheel drive tractors have been widely used, but the existing four-wheel drive transfer case is generally by the rotation of the shift fork shaft, and the position of the passive gear on the four drive power output shafts is moved by the shift fork head, thereby Connecting with the transfer case idler to transmit power, the operation is more complicated

Method used

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  • Wet type four-wheel drive transfer case structure and tractor
  • Wet type four-wheel drive transfer case structure and tractor

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Such as figure 1 As shown, a wet four-wheel drive transfer case structure of this embodiment includes a housing 1, an input gear 2, an output gear 3, an output shaft 8, a tooth nest 4 and a return spring 5, and the input gear 2 and the output The gears 3 are all installed in the housing 1 and engaged in transmission, the output shaft 8 is rotatably connected to the housing 1 and passed through the center of the output gear 3, the output shaft 8 is connected to the output The gears 3 are coaxially arranged and have a clearance fit; the tooth nest 4 is sleeved on the output shaft 8 and splined with it, and one end of the tooth nest 4 meshes with an end surface of the output gear 3; The return spring 5 is arranged along the axial direction of the output shaft 8 and one end abuts on the tooth socket 4 , and the other end abuts on the inner side wall of the housing 1 .

[0031] Such as figure 1 As shown, an oil passage 82 is provided in the output shaft 8, and the oil outl...

Embodiment 2

[0043] A tractor includes the wet four-wheel drive transfer case structure as described above. The tractor of this embodiment is engaged and disengaged by hydraulically controlling the four-wheel drive, and is easy to operate.

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PUM

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Abstract

The invention relates to a wet type four-wheel drive transfer case structure and a tractor. The transfer case structure comprises a shell, an input gear, an output gear, an output shaft, a tooth nesting sleeve and a reset spring; the input gear and the output gear are both installed in the shell and are arranged in a transmission engagement mode; the output shaft is rotationally connected to the shell, is arranged in the center of the output gear in a penetrating mode, is coaxial with the output gear and is in clearance fit with the output gear; the tooth engagement sleeve is connected to the output shaft in a sleeving mode and is in spline fit with the output shaft, and one end of the tooth nesting sleeve is engaged with one end face of the output gear; the reset spring is arranged in the axial direction of the output shaft, one end of the reset spring abuts against the tooth nesting sleeve, and the other end of the reset spring abuts against the inner wall of the shell; an oil duct is formed in the output shaft, and an oil outlet of the oil duct communicates with the inner wall of the tooth nesting sleeve; when being input into the oil duct, hydraulic oil pushes the tooth nesting sleeve to move axially and to be disengaged from the output gear, and the reset spring is compressed; and when hydraulic oil in the oil duct is output, the tooth nesting sleeve is reset under the action of the reset spring. According to the wet type four-wheel drive transfer case structure and the tractor, four-wheel drive connection and separation are achieved through hydraulic control, and the whole operation process is simple and handy.

Description

technical field [0001] The invention relates to the technical field of tractors, in particular to a wet four-wheel drive transfer case structure and the tractor. Background technique [0002] At present, four-wheel drive tractors have been widely used, but the existing four-wheel drive transfer case is generally by the rotation of the shift fork shaft, and the position of the passive gear on the four drive power output shafts is moved by the shift fork head, thereby It is more complicated to operate when it is engaged with the transfer case idler to transmit power. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a wet four-wheel drive transfer case structure and a tractor for the deficiencies of the prior art. [0004] The technical scheme of the present invention to solve the above-mentioned technical problems is as follows: a wet four-wheel drive transfer case structure, including a housing, an input gear, an ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/087F16H57/023F16C3/02
CPCF16H3/087F16C3/02F16H57/023
Inventor 冯茂林张继伟尹林燕张继东
Owner LOVOL HEAVY IND CO LTD
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