CN215370875U

CN215370875U - Clutch control device of transfer transmission case

Info

Publication number: CN215370875U
Application number: CN202120859259.7U
Authority: CN
Inventors: 冯刚
Original assignee: Changchi Transmission Technology Suzhou Co ltd
Current assignee: Changchi Transmission Technology Suzhou Co ltd
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2021-12-31
Anticipated expiration: 2031-04-25

Abstract

The utility model discloses a clutch control device of a transfer transmission case, which comprises a transmission case main body and an input end flange seat, wherein an input shaft is arranged in the input end flange seat, a driving wheel positioned in the transmission case main body is arranged on the input shaft, a brake control mechanism is arranged on one side, away from the input end flange seat, of the transmission case main body, a coupling sleeve body is arranged at one end of the input shaft, a brake sinking cavity is arranged on the coupling sleeve body, the brake control mechanism comprises a push-pull rod main body, and a control end is arranged at one end of the push-pull rod main body, and a brake end is arranged at the other end of the push-pull rod main body. The utility model adopts the design of a specific brake control mechanism, meets the brake control requirement of the transfer case with compact structure, realizes the stop operation of the input shaft, reduces the mechanical damage generated by the stop difference of the driven wheel and prolongs the effective service life. The maintenance and replacement requirements of the brake mechanism are met, and the operation is convenient and rapid. The push-pull control rod has two-stage limitation of floating limit, is convenient and efficient to operate and control, is particularly suitable for transformation of an old transmission case, and has high economic value.

Description

Clutch control device of transfer transmission case

Technical Field

The utility model relates to a clutch control device of a transfer case, and belongs to the technical field of emergency clutch control structures.

Background

The transfer transmission case is a device for distributing the power of the power mechanism, and can transmit the input torque to a plurality of driven wheels through the transmission of the main shaft to form differential torque output.

The transfer case in this case mainly is used for slowing down the use, satisfies the speed reduction cooperation demand on different output ways through the differentiation torque output from the driving wheel promptly, realizes differentiation rotational speed and uses. However, during use, emergency situations often occur in which clutching is required to meet the requirements of input deceleration and blocking. The axial stroke of the transfer case is limited, so that the design of a stopping mechanism aiming at a driving wheel in the prior art is difficult to meet, and the traditional stopping mechanism is positioned in the transfer case, so that the brake is easily influenced by abrasion, and the disassembly and maintenance operation are very difficult.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects of the prior art and provides a clutch control device of a transfer case, aiming at the problem that the traditional axially-limited transfer case is difficult to realize a built-in clutch mechanism.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

the clutch control device of the transfer transmission case comprises a transmission case main body and an input end flange seat arranged on the transmission case main body, wherein an input shaft with rotary displacement is arranged in the input end flange seat, a driving wheel positioned in the transmission case main body is arranged on the input shaft, a plurality of output shafts are arranged in the transmission case main body, a driven wheel in transmission fit with the driving wheel is arranged on any output shaft,

a brake control mechanism arranged opposite to the input shaft is arranged on one side of the transmission case main body, which is far away from the input end flange seat, a coupling sleeve body is arranged at one end of the input shaft, which faces the brake control mechanism, a brake sinking cavity facing the brake control mechanism is arranged on the coupling sleeve body,

the brake control mechanism comprises a push-pull rod main body with axial telescopic displacement, one end of the push-pull rod main body is provided with a control end, and the other end of the push-pull rod main body is provided with a brake end matched with the brake sinking cavity.

Preferably, the braking end is a flexible braking ring body matched with the braking sinking cavity.

Preferably, a recess for avoiding the free end of the push-pull rod main body is arranged in the brake sinking cavity.

Preferably, the open end of the brake chamber is provided with a guide cone wall.

Preferably, the brake control mechanism comprises an assembly shell seat detachably arranged on the transmission case main body, a shaft channel used for penetrating and connecting the push-pull rod main body is arranged in the assembly shell seat, and a limit matching part used for releasing or locking the push-pull rod main body is arranged in the shaft channel.

Preferably, the limiting matching part comprises a plurality of limiting bodies which are arranged in the shaft channel and are uniformly distributed in the circumferential direction, each limiting body comprises a locking ball with radial floating displacement, and the push-pull rod body is provided with a separating ring recess and a stopping ring recess which are arranged at intervals.

Preferably, the control end is a handle, and a circumferential limiting rib is arranged on the handle.

Preferably, the driving wheel is provided with a matching shaft cavity for matching with the input shaft, and the coupling sleeve is located in the matching shaft cavity and detachably coupled with the input shaft.

The utility model has the following beneficial effects:

1. the design of a specific brake control mechanism is adopted, the brake control requirement of the transfer case with a compact structure is met, the stop operation of the input shaft is realized, the mechanical damage caused by the stop difference of the driven wheel is reduced, the effective service life is prolonged, and the emergency brake requirement is particularly met.

2. Through the design of assembling the shell seat and the coupling sleeve body, the requirement for maintaining and replacing the brake mechanism is met, and the operation is convenient and fast.

3. The push-pull control rod has two-stage limitation of floating limit, can realize the fixed state realization of stopping and releasing, is convenient and efficient to control, is particularly suitable for the transformation of an old transmission case, and has higher economic value.

Drawings

FIG. 1 is a schematic cross-sectional view of the clutch control of the transfer case of the present invention.

FIG. 2 is a schematic structural diagram of a clutch control device of the transfer case of the present invention.

Detailed Description

The utility model provides a schematic sectional structure diagram of a clutch control device of a transfer case. The technical solution of the present invention is described in detail below with reference to the accompanying drawings so that it can be more easily understood and appreciated.

The clutch control device of the transfer transmission case comprises a transmission case main body 1 and an input end flange seat 2 arranged on the transmission case main body 1, wherein an input shaft 3 with rotary displacement is arranged in the input end flange seat 2, a driving wheel 4 positioned in the transmission case main body 1 is arranged on the input shaft 3, a plurality of output shafts 5 are arranged in the transmission case main body, and a driven wheel 6 in transmission fit with the driving wheel 4 is arranged on any output shaft 5.

This transmission case main part 1 structure is comparatively compact, hardly realizes that transmission clutching mechanism carries on, therefore does not have braking function, thereby generally carries out the shut down of natural speed decay through stopping input supply after the output operation is accomplished, and output shaft 5 has the cooperation structure of output, and output cooperation structure has certain damping to output shaft 5, and there is the difference in the velocity ratio of following driving wheel 6, and under the natural shutdown condition, each can receive inhomogeneous resistance from driving wheel 6 and cause certain mechanical damage, influences life.

In the present case, the brake control mechanism 7 that sets up opposite with the input shaft 3 has been set up to the side that deviates from input end flange seat 2 in transmission case main part 1, and the one end of input shaft 3 towards brake control mechanism 7 is equipped with the coupling cover body 8, is equipped with the braking heavy chamber 80 towards brake control mechanism on the coupling cover body 8.

The brake control mechanism 7 comprises a push-pull rod main body 9 with axial telescopic displacement, one end of the push-pull rod main body 9 is provided with a control end 91, and the other end is provided with a brake end 92 matched with the brake sinking chamber 80.

The specific implementation process and principle description are as follows:

the brake control mechanism 7 located in the center of the shaft is designed on one side, away from the input end flange seat 2, of the transmission case body 1, and the carrying setting requirement of the brake control mechanism is met.

The design of the push-pull rod main body 9 is adopted, and the requirement that the braking end 92 is matched with the braking sinking cavity 80 of the coupling sleeve body 8 is met through the axial displacement of the push-pull rod main body 9.

When the transfer case is stopped and braked, the push-pull rod main body 9 is inserted, so that contact friction force is formed between the braking end 92 and the braking sinking cavity 80, the speed reduction and stopping control of the input shaft 3 is realized, the braking time is greatly shortened, unbalanced speed reduction difference of the driven wheel 6 is eliminated to a certain extent, the effective service life of the transfer case is prolonged, the transfer case is particularly suitable for being used under emergency conditions, the occupied space is extremely small, and the transfer case is easy to carry.

In one embodiment, detent end 92 is a flexible detent ring that mates with detent pocket 80. A recess 81 for avoiding the free end of the push-pull rod main body is provided in the brake sinking chamber 80. The open end of brake counterbore 80 is provided with a guide cone wall.

Specifically, the braking end 92 is typically detachably sleeved on the free end of the push-pull rod main body 9, and the push-pull rod main body 9 has an exposed end opposite to the braking end 92, so that the design of the sunken part 81 is adopted, the hard compression joint between the free end of the push-pull rod main body 9 and the braking sunken cavity 80 can be prevented, and the flexible braking ring body and the braking sunken cavity 80 can be tightly matched. And the guide conical wall meets the matching guide of the flexible braking ring body, and the accurate axial alignment is realized.

In one embodiment, the brake control mechanism 7 includes a mounting housing 71 detachably disposed on the transmission case body, a shaft passage 72 is disposed in the mounting housing 71 for passing through the push-pull rod body, and a limit engaging portion 70 is disposed in the shaft passage for releasing or locking the push-pull rod body.

Namely, the design of the limit matching part 70 meets the requirements of axial release and limit of the push-pull rod main body, and meets the requirements of braking and releasing operation.

In one embodiment, the position-limiting fitting part 70 includes a plurality of position-limiting bodies disposed in the axial passage and uniformly distributed in the circumferential direction, the position-limiting bodies include locking balls 700 with radial floating displacement, and the push-pull rod main body 9 is provided with separating ring recesses 901 and stopping ring recesses 902 disposed at intervals.

Specifically, when the stopping operation is performed, as shown in fig. 1, the control end 91 is pressed to lock the stopping ring recess 902 of the push-pull rod main body 9 with the locking ball 700, and the stopping ring recess is in the braking state, and when the control end 92 is pulled out to lock the separating ring recess 901 with the locking ball 700, and the braking end 92 is separated from the coupling housing 8, and the input shaft 3 is in the free state.

In one embodiment, the control end 91 is a handle with a circumferential retaining rib 910. Specifically, the circumferential limiting rib 910 is matched with the matched circumferential limiting groove to lock the push-pull rod main body 9 in the braking state, a specific circumferential matching structure of the push-pull rod main body 9 is not required, and only the circumferential locking during the locking is required, so that the structural cost is reduced.

In one embodiment, the driving wheel 4 is provided with a mating shaft cavity 40 for mating with the input shaft 3, and the coupling sleeve body 8 is located in the mating shaft cavity 40 and detachably coupled with the input shaft 3.

The specific implementation process and principle description are as follows:

firstly, the input shaft 3 and the driving wheel 4 are in linkage fit structure, in the scheme, a circumferential linkage structure is arranged between the coupling sleeve body 8 and the input shaft 3, namely the coupling sleeve body 8 is provided with a polygonal circumferential limiting groove chamber, coupling fit between the coupling sleeve body 8 is realized through a fit cavity of the input shaft 3, a disassembly structure is arranged between the coupling sleeve body 8 and the input shaft 3 or between the coupling sleeve body 8 and the driving wheel 4, and the fit can be realized by adopting structures such as radial clamping ribs or axial bolts.

In the process of brake maintenance and repair, the maintenance and replacement requirements of the coupling sleeve body 8 and the brake end 92 can be met only by disassembling and assembling the shell seat 71, so that the transmission box is easy to maintain, and the operation is convenient and rapid.

Through the above description, it can be found that the clutch control device of the transfer case disclosed by the utility model adopts a specific brake control mechanism design, so that the brake control requirement of the transfer case with a compact structure is met, the stop operation of an input shaft is realized, the mechanical damage caused by the stop difference of a driven wheel is reduced, the effective service life is prolonged, and the clutch control device is particularly suitable for the emergency brake requirement. Through the design of assembling the shell seat and the coupling sleeve body, the requirement for maintaining and replacing the brake mechanism is met, and the operation is convenient and fast. The push-pull control rod has two-stage limitation of floating limit, can realize the fixed state realization of stopping and releasing, is convenient and efficient to control, is particularly suitable for the transformation of an old transmission case, and has higher economic value.

The technical solutions of the present invention are fully described above, it should be noted that the specific embodiments of the present invention are not limited by the above description, and all technical solutions formed by equivalent or equivalent changes in structure, method, or function according to the spirit of the present invention by those skilled in the art are within the scope of the present invention.

Claims

1. Separation and reunion controlling means of transfer case, be in including transmission case main part and setting input flange seat in the transmission case main part, be equipped with the input shaft that possesses rotary displacement in the input flange seat, be equipped with on the input shaft and be located the action wheel in the transmission case main part, be equipped with a plurality of output shafts in the transmission case main part, arbitrary be equipped with on the output shaft with action wheel looks drive fit from driving wheel, its characterized in that:

2. The clutch control device of the transfer case according to claim 1, characterized in that:

the braking end is a flexible braking ring body matched with the braking sinking cavity.

3. The clutch control device of the transfer case according to claim 2, characterized in that:

and a sinking recess for avoiding the free end of the push-pull rod main body is arranged in the braking sinking cavity.

4. The clutch control device of the transfer case according to claim 2, characterized in that:

and a guide conical wall is arranged at the open end of the brake sinking cavity.

5. The clutch control device of the transfer case according to claim 1, characterized in that:

the brake control mechanism comprises an assembly shell seat which is detachably arranged on the transmission case main body, a shaft channel which is used for being connected with the push-pull rod main body in a penetrating mode is arranged in the assembly shell seat, and a limiting matching portion which is used for releasing or locking the push-pull rod main body is arranged in the shaft channel.

6. The transfer case clutch control apparatus according to claim 5, characterized in that:

the limiting matching part comprises a plurality of limiting bodies which are arranged in the shaft channel and are uniformly distributed in the circumferential direction, each limiting body comprises a locking ball with radial floating displacement, and the push-pull rod main body is provided with a separating ring recess and a stopping ring recess which are arranged at intervals.

7. The transfer case clutch control apparatus according to claim 6, characterized in that:

the control end is a handle, and the handle is provided with a circumferential limiting rib.

8. The clutch control device of the transfer case according to claim 1, characterized in that:

the driving wheel is provided with a matching shaft cavity used for being matched with the input shaft, and the coupling shaft body is located in the matching shaft cavity and detachably connected with the input shaft in a matching mode.