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Coaxial type shifting fork structure

A coaxial type and shifting fork shaft technology, applied in the field of coaxial shifting fork structure, can solve the problems of low smoothness and complex structure, and achieve the effects of high smoothness, simplified structure and low manufacturing cost

Active Publication Date: 2017-05-31
DONGFENG COMML VEHICLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects and problems of low ride comfort and complex structure existing in the prior art, and provide a coaxial shift fork structure with high ride comfort and simple structure

Method used

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  • Coaxial type shifting fork structure
  • Coaxial type shifting fork structure
  • Coaxial type shifting fork structure

Examples

Experimental program
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Effect test

Embodiment 1

[0045] see Figure 1 to Figure 4 , a coaxial shift fork structure, including a mechanism base 1, a No. 1 shift fork 2, a No. 2 shift fork 3, a shift actuator 4, and the No. 1 shift fork 2 and No. The shaft is installed on the mechanism base 1, the shift actuator 4 includes a shift head 41, the shift fork shaft includes the first shift fork shaft 5 and the second shift fork shaft 6, the first shift fork shaft 5, the second shift fork shaft The No. 1 shift fork shaft 6 is coaxially installed in the mechanism base 1, and the No. 1 shift fork 2 and No. 2 shift fork 3 are installed on the No. 1 shift fork shaft 5 and No. 2 shift fork shaft 6 respectively. The shift head 41 The number is two, and the two shift heads 41 are respectively matched with the No. 1 shift fork 2 and the No. 2 shift fork 3; the structure of the No. 1 shift fork 2 and the No. 2. The No. 1 countersunk head lock nail 21 is fixedly connected to the No. 1 shift fork shaft 5, and the No. 2 shift fork 3 is fixedly...

Embodiment 2

[0047] Basic content is the same as embodiment 1, the difference is:

[0048] see Figure 1 to Figure 4 , the No. 1 shift fork shaft 5 has the same structure as the No. 2 shift fork shaft 6, and one side of the No. 1 shift fork shaft 5 and No. 2 shift fork shaft 6 is provided with a self-locking groove, and the No. 1 shift fork shaft 5. The other side of the No. 2 shift fork shaft 6 is provided with a No. 1 interlocking groove 54. The self-locking groove includes a working gear groove 51 and a neutral gear groove 52. The number of the working gear grooves 51 is two , the two working gear slots 51 are respectively located on both sides of the neutral gear slot 52; the No. 1 shift fork shaft 5 and the No. 2 shift fork shaft 6 are equipped with flat keys 53, and the mechanism base 1 is provided with a flat key for installation. The keyway of the key 53; the coaxial shift fork structure also includes an interlocking device 7, the interlocking device 7 is installed on the mechanis...

Embodiment 3

[0050] Basic content is the same as embodiment 1, the difference is:

[0051] see Figure 1 to Figure 4 , the shift actuator 4 also includes a shift actuator 42, the number of the shift actuator 42 is two, and the piston rod 43 of the shift actuator 42 is sleeved inside the mechanism base 1 through a guide sleeve 45 , one end of the two shifting heads 41 is fixedly connected to the piston rod 43 through the No. Cooperate.

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PUM

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Abstract

The invention provides a coaxial type shifting fork structure. The coaxial type shifting fork structure comprises a mechanism base, a first shifting fork, a second shifting fork and a gear shifting execution mechanism. The first shifting fork and the second shifting fork are installed on the mechanism base through shifting fork shafts. The gear shifting execution mechanism comprises two shifting blocks, the shifting fork shafts comprise the first shifting fork shaft and the second shifting fork shaft, and the first shifting fork shaft and the second shifting fork shaft are coaxially installed in the mechanism base. The first shifting fork and the second shifting fork are installed on the first shifting fork shaft and the second shifting fork shaft correspondingly. The two shifting blocks are matched with the first shifting fork and the second shifting fork correspondingly. The coaxial type shifting fork structure is high in smoothness and simple in structure.

Description

technical field [0001] The invention relates to the technical field of vehicle gearboxes, in particular to a coaxial shift fork structure, which is mainly suitable for improving the smoothness of shifting and simplifying the layout structure. Background technique [0002] In the shift actuator of the existing dry-type dual-clutch automatic transmission of an automobile, the shift fork assembly is fixed on the gearbox case, and the shift block is pushed through the shift head in the shift actuator, thereby driving the shift fork to realize shifting. The above structure has the following disadvantages: the length of the shift fork shaft is long and the deflection is small. When the shift force acts on the shift fork, the shift fork shaft will be deformed, thereby affecting the smoothness of shifting; the length of the shift head is long, The force of the shift actuator produces a large torque, which will also affect the smoothness of the shift; there are many kinds of parts, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H63/32F16H61/04
CPCF16H61/04F16H63/32F16H2063/321
Inventor 王梅俊刘旭张成海李林
Owner DONGFENG COMML VEHICLE CO LTD
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