CN211820472U

CN211820472U - Transfer case with hydraulic spring brake

Info

Publication number: CN211820472U
Application number: CN202020259921.0U
Authority: CN
Inventors: 邓显俊; 赵金元
Original assignee: SINOSTEEL HENGYANG MACHINERY CO Ltd
Current assignee: SINOSTEEL HENGYANG MACHINERY CO Ltd
Priority date: 2020-03-05
Filing date: 2020-03-05
Publication date: 2020-10-30
Anticipated expiration: 2030-03-05

Abstract

The utility model discloses a transfer case with a hydraulic spring brake, which comprises a hydraulic spring brake and a transfer case, wherein the transfer case comprises a shell, a transfer case input shaft, an intermediate shaft and a transfer case output shaft which are rotatably arranged on the shell, one end of the transfer case output shaft is exposed out of the shell, and a brake disc is arranged on the transfer case output shaft; an input gear is arranged on the input shaft of the transfer case, the input gear is meshed with an intermediate gear arranged on an intermediate shaft, and the intermediate gear is meshed with an output gear arranged on an output shaft of the transfer case; the hydraulic spring brake is connected with the brake disc to brake and stop the brake of the brake box. The utility model has the advantages of simple structure, convenient operation can realize quick braking and release to the transfer case.

Description

Transfer case with hydraulic spring brake

Technical Field

The utility model relates to a transfer case of environment operation in the pit, it especially relates to a take transfer case of hydraulic spring stopper.

Background

The transfer case is a device for distributing the power of the engine, and can output the power to the rear axle or to the front axle or the rear axle simultaneously. However, the transfer case of the existing underground environment operation equipment has the defect of synchronism checking, namely when the input end stops inputting power, the input shaft and the output shaft cannot be stopped immediately and can continue to operate, and potential safety hazards are brought to operation.

Disclosure of Invention

The utility model aims at overcoming the above-mentioned not enough of prior art and providing a simple structure, convenient operation can realize the transfer case of taking hydraulic spring brake of quick braking and release to the transfer case.

The technical scheme of the utility model is that: the transfer case comprises a hydraulic spring brake and a transfer case, wherein the transfer case comprises a shell, a transfer case input shaft, an intermediate shaft and a transfer case output shaft which are rotatably arranged on the shell, one end of the transfer case output shaft is exposed out of the shell, and a brake disc is arranged on the transfer case output shaft; an input gear is arranged on the input shaft of the transfer case, the input gear is meshed with an intermediate gear arranged on an intermediate shaft, and the intermediate gear is meshed with an output gear arranged on an output shaft of the transfer case; the hydraulic spring brake is connected with the brake disc to brake and stop the brake of the brake box.

The utility model discloses further technical scheme is: the hydraulic spring brake comprises a hydraulic piston cylinder body and a spring cylinder body connected with the hydraulic piston cylinder body, the hydraulic piston cylinder body and the spring cylinder body form an internal cavity, a piston is arranged in the cavity close to the end of a hydraulic piston cylinder body, one end of the piston is exposed out of the hydraulic piston cylinder body, and a spring is arranged between the piston and the spring cylinder body; one end of the hydraulic piston cylinder body, which is far away from the spring cylinder body, is connected with a fixed plate, a passive friction plate assembly and an active friction plate assembly are respectively arranged between the fixed plate and the piston end face, and a braking space in which a brake disc is inserted is reserved between the passive friction plate assembly and the active friction plate assembly.

The utility model discloses further technical scheme is: a guide pillar is arranged between the hydraulic piston cylinder body and the fixing plate, and the driving friction plate assembly can move along the guide pillar.

The utility model discloses further technical scheme is: the spring is a belleville spring.

The utility model discloses further technical scheme is: the hydraulic piston cylinder body is connected with the spring cylinder body through threads.

The utility model discloses further technical scheme is: the hydraulic piston cylinder body is connected with the fixed plate through a bolt.

The utility model discloses further technical scheme is: and an oil inlet is formed in the end, far away from the spring cylinder body, of the hydraulic piston cylinder body.

The utility model discloses further technical scheme is: and a screwing blind hole is formed in the end, far away from the hydraulic piston cylinder, of the spring cylinder body.

The utility model discloses further technical scheme is: the hydraulic piston cylinder body and the piston are respectively provided with a first pin hole and a second pin hole at corresponding positions, and pin shafts are arranged in the two pin holes.

Compared with the prior art, the utility model has the following characteristics:

1. because the utility model discloses brake equipment has been added at current transfer case to can realize stopping quick braking, eliminate the potential safety hazard.

2. Because the utility model discloses a hydraulic spring stopper controls the removal of hydraulic spring stopper inner piston through pressure oil simultaneously to the realization is to the braking and the release of transfer case, unusual convenience, the operation is very simple.

The detailed structure of the present invention will be further described with reference to the accompanying drawings and the detailed description.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of a hydraulic spring brake;

fig. 3 is a view from direction a of fig. 2.

Detailed Description

Example 1

As shown in fig. 1-3, a transfer case with a hydraulic spring brake comprises a hydraulic spring brake 1 and a transfer case.

The transfer case comprises a shell 21, and a transfer case input shaft 211, an intermediate shaft 212 and a transfer case output shaft 213 which are rotatably arranged on the shell 21, wherein one end of the transfer case output shaft 213 is exposed out of the shell 21, and a brake disc 222 is arranged on the transfer case output shaft; the transfer case input shaft 211 is provided with an input gear 2111, the input gear 2111 is meshed with an intermediate gear 2121 arranged on the intermediate shaft 212, and the intermediate gear 2121 is meshed with an output gear 2131 arranged on the transfer case output shaft 213, namely, the power input by the transfer case input shaft 211 can be transmitted to the transfer case output shaft 213 to brake the brake disc 222, namely, brake the transfer case output shaft 213.

The hydraulic spring brake 1 comprises a hydraulic piston cylinder 101, the hydraulic piston cylinder 101 is connected with a spring cylinder 102 through threads, and the hydraulic piston cylinder 101 and the spring cylinder 102 form an internal cavity, so that the length of the cavity is changed through the relative rotation of the hydraulic piston cylinder 101 and the spring cylinder 102.

In order to facilitate the relative rotation of the hydraulic piston cylinder 101 and the spring cylinder 102, a blind tightening hole 111 is provided at the end of the spring cylinder 102 remote from the hydraulic piston cylinder 101.

A piston 103 is arranged in the cavity close to the hydraulic piston cylinder 101, one end of the piston 103 is exposed out of the hydraulic piston cylinder 101, and a spring 104 is arranged between the piston 103 and the spring cylinder 102; the spring 104 abuts the piston 103 at one end and the inner end surface of the spring cylinder 102 at the other end, preferably the spring 104 is a belleville spring, so that when the length of the cavity is changed, the pressing force of the spring 104 on the piston 103 is changed.

As shown in fig. 3, the end of the hydraulic piston cylinder 101 remote from the spring cylinder 102 is provided with an oil inlet 110, i.e. pressure oil can enter the hydraulic piston cylinder 101 through the oil inlet 110, push the piston 103 to compress the spring 104, thereby moving towards the spring cylinder 102.

The end of the hydraulic piston cylinder 101 far from the spring cylinder 102 is connected with a fixing plate 105, and a passive friction plate assembly 106 and an active friction plate assembly 107 are respectively arranged between the fixing plate 105 and the end face of the piston 103, namely, the passive friction plate assembly 106 is arranged on the side close to the fixing plate 105, and the active friction plate assembly 107 is arranged on the side close to the piston 103. When the piston 103 moves to the right, as shown in fig. 2, the active friction plate assembly 107 is pushed toward the passive friction plate assembly 106, so that the brake disc 222 between the passive friction plate assembly 106 and the active friction plate assembly 107 is braked.

In order to brake the brake discs 222 with different thicknesses, the end of the hydraulic piston cylinder 101 remote from the spring cylinder 102 is connected to the fixing plate 105 by two bolts 109, but of course, the strength of two or more bolts 109 may also be increased, and the bolts 109 are high-strength bolts for the purpose of increasing the strength because the pressure applied during braking is large. The distance between the fixing plate 105 and the end face of the hydraulic piston cylinder 101 can be changed by rotating the bolt 109, that is, the space distance between the passive friction plate assembly 106 and the active friction plate assembly 107 where the brake disc 222 is inserted can be changed, so that the brake disc 222 with different thicknesses can be braked.

In order to prevent the active friction plate assembly 107 from rotating during the movement, a guide post 108 is provided between the hydraulic piston cylinder 101 and the fixing plate 105, and the active friction plate assembly 107 is provided with a groove through which the guide post 108 can pass, so that the active friction plate assembly 107 can move along the guide post 108.

In order to prevent the piston 103 from rotating relative to the hydraulic piston cylinder 101 during movement, a first pin hole 1031 and a second pin hole 1011 are respectively formed at positions corresponding to the hydraulic piston cylinder 101 and the piston 103, and a pin 114 is installed in the pin holes.

The working principle of the utility model is as follows: when the transfer case needs to be braked, the spring 104 presses the piston 103 to push the active friction plate assembly 107 to approach the passive friction plate assembly 106 along the guide post 108, so that the brake disc 222 is clamped between the active friction plate assembly 107 and the passive friction plate assembly 106, and the brake disc 222, namely the transfer case output shaft 213, is braked. When the brake needs to be released, namely pressure oil can enter the hydraulic piston cylinder 101 through the oil inlet 110, the piston 103 is pushed to move towards the spring cylinder 102, and therefore the active friction plate assembly 107 releases the brake disc 222, and the function of releasing the brake on the brake disc 222, namely releasing the brake on the transfer case output shaft 213, is realized. When braking on the brake discs 222 with different thicknesses is needed, the bolt 109 can be rotated, so as to adjust the distance between the fixing plate 105 and the end surface of the hydraulic piston cylinder 101, that is, the space distance between the passive friction plate assembly 106 and the active friction plate assembly 107 where the brake discs 222 are inserted can be changed, and braking on the brake discs 222 with different thicknesses can be realized.

The above-mentioned embodiment is the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.

Claims

1. The utility model provides a take transfer case of hydraulic spring brake which characterized in that: the transfer case comprises a shell (21), and a transfer case input shaft (211), an intermediate shaft (212) and a transfer case output shaft (213) which are rotatably arranged on the shell (21), wherein one end of the transfer case output shaft (213) is exposed out of the shell (21), and a brake disc (222) is arranged on the transfer case output shaft; an input gear (2111) is arranged on the transfer case input shaft (211), the input gear (2111) is meshed with an intermediate gear (2121) arranged on an intermediate shaft (212), and the intermediate gear (2121) is meshed with an output gear (2131) arranged on the transfer case output shaft (213); the hydraulic spring brake (1) is connected with a brake disc (222) and is used for braking and stopping the brake of the brake box.

2. The transfer case with hydraulic spring brake of claim 1, characterized in that: the hydraulic spring brake (1) comprises a hydraulic piston cylinder body (101) and a spring cylinder body (102) connected with the hydraulic piston cylinder body (101), the hydraulic piston cylinder body (101) and the spring cylinder body (102) form an internal cavity, a piston (103) is arranged in the cavity close to the hydraulic piston cylinder body (101), one end of the piston (103) is exposed out of the hydraulic piston cylinder body (101), and a spring (104) is arranged between the piston (103) and the spring cylinder body (102); one end, far away from the spring cylinder body (102), of the hydraulic piston cylinder body (101) is connected with a fixing plate (105), a passive friction plate assembly (106) and an active friction plate assembly (107) are arranged between the fixing plate (105) and the end face of the piston (103) respectively, and a braking space in which a brake disc (222) is inserted is reserved between the passive friction plate assembly (106) and the active friction plate assembly (107).

3. The transfer case with hydraulic spring brake of claim 2, wherein: a guide post (108) is arranged between the hydraulic piston cylinder (101) and the fixing plate (105), and the driving friction plate assembly (107) can move along the guide post (108).

4. A transfer case with hydraulic spring brake as claimed in claim 2 or 3, characterized in that: the spring (104) is a belleville spring.

5. A transfer case with hydraulic spring brake as claimed in claim 2 or 3, characterized in that: the hydraulic piston cylinder body (101) is connected with the spring cylinder body (102) through threads.

6. A transfer case with hydraulic spring brake as claimed in claim 2 or 3, characterized in that: the hydraulic piston cylinder body (101) is connected with the fixing plate (105) through a bolt (109).

7. A transfer case with hydraulic spring brake as claimed in claim 2 or 3, characterized in that: an oil inlet (110) is formed in the end, far away from the spring cylinder body (102), of the hydraulic piston cylinder body (101).

8. The transfer case with hydraulic spring brake of claim 5, wherein: and a screwing blind hole (111) is formed in the end, far away from the hydraulic piston cylinder body (101), of the spring cylinder body (102).

9. A transfer case with hydraulic spring brake as claimed in claim 2 or 3, characterized in that: the hydraulic piston cylinder body (101) and the piston (103) are respectively provided with a first pin hole (1031) and a second pin hole (1011) at corresponding positions, and pin shafts (114) are arranged in the two pin holes.