CN210047480U - Manual brake shoe gap adjusting mechanism - Google Patents
Manual brake shoe gap adjusting mechanism Download PDFInfo
- Publication number
- CN210047480U CN210047480U CN201920587380.1U CN201920587380U CN210047480U CN 210047480 U CN210047480 U CN 210047480U CN 201920587380 U CN201920587380 U CN 201920587380U CN 210047480 U CN210047480 U CN 210047480U
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- rear cover
- connecting portion
- brake shoe
- connecting part
- annular
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Abstract
The utility model discloses a manual guiding mechanism in brake shoe clearance, including the casing and locate adjustment back lid, bearing, back lid and lip type sealing washer in the casing, the lid is the hollow cylinder structure after the adjustment, the lid includes first connecting portion, second connecting portion and third connecting portion after the adjustment, the second connecting portion are located first connecting portion and third connecting portion, the surface interlude of second connecting portion is equipped with annular groove, the bearing housing is established the surface of second connecting portion and is located annular groove with between the first connecting portion, be equipped with the circlip for the axle in the annular groove; the inner side wall of the rear cover is provided with an annular bulge, an annular buckling plate is vertically arranged on the outer surface of one end of the rear cover, the rear cover is sleeved on the outer surface of the bearing, and a lip-shaped sealing ring is filled between the rear cover and the second connecting part. The utility model has the advantages of brake unit leakproofness is good, alleviate intensity of labour when changing the brake shoe.
Description
Technical Field
The utility model relates to a railway vehicle brake accessory class technical field particularly, relates to a manual guiding mechanism in brake shoe clearance.
Background
The two-way brake shoe slack adjuster (brake adjuster for short) for the current railway vehicle has the following defects: firstly, the sealing performance of the brake unit is not good enough; secondly, the manual adjustment force is large when the brake shoe is changed.
SUMMERY OF THE UTILITY MODEL
For solving the problem that exists among the prior art, the utility model aims at providing a manual guiding mechanism in brake shoe clearance has that the brake unit leakproofness is good, alleviate the intensity of labour's when trading the brake shoe advantage.
In order to achieve the above object, the utility model adopts the following technical scheme: a manual brake shoe gap adjusting mechanism comprises a shell, an adjusting rear cover, a bearing, a rear cover and a lip-shaped sealing ring, wherein the adjusting rear cover, the bearing, the rear cover and the lip-shaped sealing ring are arranged in the shell, the adjusting rear cover is of a hollow cylinder structure, the adjusting rear cover comprises a first connecting part, a second connecting part and a third connecting part, the second connecting part is located between the first connecting part and the third connecting part, an annular groove is formed in the middle section of the outer surface of the second connecting part, the bearing is sleeved on the outer surface of the second connecting part and located between the annular groove and the first connecting part, and a shaft elastic retaining ring is arranged in the annular groove; the rear cover is in a hollow sleeve shape, the length of the rear cover is consistent with that of the second connecting portion, an annular bulge is arranged on the inner side wall of the rear cover, an annular buckling plate is vertically arranged on the outer surface of one end of the rear cover, the rear cover is sleeved on the outer surface of the bearing, and a lip-shaped sealing ring is filled between the rear cover and the second connecting portion.
Preferably, a cross-sectional diameter of the first connecting portion is larger than a cross-sectional diameter of the second connecting portion, and a cross-sectional diameter of the second connecting portion is larger than a cross-sectional diameter of the third connecting portion.
Preferably, an O-shaped rubber sealing ring is arranged between the rear cover and the shell.
Preferably, a gasket is further arranged between the annular buckling plate and the O-shaped rubber sealing ring, and the gasket is consistent with the annular buckling plate in length.
Preferably, a clamping groove is formed in the annular buckling plate.
The clamping groove is used for inserting and opening the workpiece and is used for prying the annular buckling plate, so that the clamping groove is convenient to detach and install.
The utility model has the advantages that:
(1) the bearing is arranged at the position of the adjusted rear cover, so that the sliding friction of the traditional brake unit is changed into rolling friction, the manual adjusting force can be reduced, and the labor intensity in brake shoe replacement is reduced;
(2) an O-shaped sealing ring adopted in the traditional braking unit is changed into a lip-shaped sealing ring, so that the sealing performance of the braking unit is improved.
Drawings
FIG. 1 is a cross-sectional view of a brake shoe clearance manual adjustment mechanism according to an embodiment of the present invention;
FIG. 2 is a structural diagram of a brake shoe clearance manual adjustment mechanism according to an embodiment of the present invention;
fig. 3 is a blasting diagram of a manual brake shoe clearance adjusting mechanism according to an embodiment of the present invention.
Description of reference numerals:
1. a housing; 2. adjusting the rear cover; 3. a first connection portion; 4. a second connecting portion; 5. a third connecting portion; 6. an annular groove; 7. a bearing; 8. a rear cover; 9. a lip-shaped seal ring; 10. a circlip for the shaft; 11. an annular projection; 12. an annular buckling plate; 13. an O-shaped rubber sealing ring; 14. a gasket.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1:
as shown in fig. 1-3, a manual brake shoe gap adjusting mechanism includes a housing 1, and an adjusting rear cover 2, a bearing 7, a rear cover 8 and a lip-shaped seal ring 9 which are arranged in the housing 1, where the adjusting rear cover 2 is a hollow cylinder structure, the adjusting rear cover 2 includes a first connecting portion 3, a second connecting portion 4 and a third connecting portion 5, the second connecting portion 4 is located at the first connecting portion 3 and the third connecting portion 5, an annular groove 6 is arranged at a middle section of an outer surface of the second connecting portion 4, the bearing 7 is sleeved on an outer surface of the second connecting portion 4 and is located between the annular groove 6 and the first connecting portion 3, and a shaft circlip 10 is arranged in the annular groove 6; the rear cover 8 is in a hollow sleeve shape, the length of the rear cover 8 is consistent with that of the second connecting portion 4, an annular protrusion 11 is arranged on the inner side wall of the rear cover 8, an annular buckling plate 12 is vertically arranged on the outer surface of one end of the rear cover 8, the rear cover 8 is sleeved on the outer surface of the bearing 7, and a lip-shaped sealing ring 9 is filled between the rear cover 8 and the second connecting portion 4. The annular buckling plate 12 is provided with a clamping groove.
The bearing 7 is arranged at the position of the rear adjusting cover 2, so that the sliding friction between the rear adjusting cover 2 and the shell 1 in the traditional brake unit is changed into rolling friction, the manual adjusting force can be reduced, and the labor intensity in brake shoe replacement is reduced; an O-shaped sealing ring adopted in the traditional braking unit is changed into a lip-shaped sealing ring 9, so that the sealing performance of the braking unit is improved.
Example 2:
as shown in fig. 1 to 3, this embodiment is improved from embodiment 1 in that the cross-sectional diameter of the first connecting portion 3 is larger than the cross-sectional diameter of the second connecting portion 4, and the cross-sectional diameter of the second connecting portion 4 is larger than the cross-sectional diameter of the third connecting portion 5.
The first connecting portion 3 is used for being connected with the adjusting screw, the second connecting portion 4 is used for installing the bearing 7 and the lip-shaped sealing ring 9, and the third connecting portion 5 extends out of the shell 1.
Example 3:
as shown in fig. 1 to 3, this embodiment is modified from embodiment 1 in that an O-ring rubber seal 14 is provided between the rear cover 8 and the housing 1.
The sealing performance between the rear cover 8 and the shell 1 is enhanced through the O-shaped rubber sealing ring 14, and the sealing performance of the brake unit during operation is ensured.
Example 4:
as shown in fig. 1 to 3, in this embodiment, a gasket 15 is further disposed between the annular fastening plate 12 and the O-ring 14, and the gasket 15 and the annular fastening plate 12 have the same length.
Example 4 the rest of the structure and the operation principle are the same as those of example 1.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (5)
1. A manual brake shoe gap adjusting mechanism is characterized by comprising a shell, an adjusting rear cover, a bearing, a rear cover and a lip-shaped sealing ring, wherein the adjusting rear cover, the bearing, the rear cover and the lip-shaped sealing ring are arranged in the shell, the adjusting rear cover is of a hollow cylinder structure, the adjusting rear cover comprises a first connecting part, a second connecting part and a third connecting part, the second connecting part is located between the first connecting part and the third connecting part, an annular groove is formed in the middle section of the outer surface of the second connecting part, the bearing is sleeved on the outer surface of the second connecting part and located between the annular groove and the first connecting part, and a shaft elastic check ring is arranged in the annular groove; the rear cover is in a hollow sleeve shape, the length of the rear cover is consistent with that of the second connecting portion, an annular bulge is arranged on the inner side wall of the rear cover, an annular buckling plate is vertically arranged on the outer surface of one end of the rear cover, the rear cover is sleeved on the outer surface of the bearing, and a lip-shaped sealing ring is filled between the rear cover and the second connecting portion.
2. The manual brake shoe clearance adjustment mechanism of claim 1, wherein the first connecting portion has a cross-sectional diameter greater than the cross-sectional diameter of the second connecting portion, and the cross-sectional diameter of the second connecting portion is greater than the cross-sectional diameter of the third connecting portion.
3. The manual brake shoe clearance adjustment mechanism of claim 1, wherein an O-ring seal is disposed between said rear cover and said housing.
4. The manual brake shoe clearance adjustment mechanism of claim 3, wherein a washer is further disposed between said annular fastening plate and said O-ring, and said washer and said annular fastening plate have the same length.
5. The manual brake shoe clearance adjustment mechanism of claim 1, wherein said annular snap plate has a detent groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920587380.1U CN210047480U (en) | 2019-04-26 | 2019-04-26 | Manual brake shoe gap adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920587380.1U CN210047480U (en) | 2019-04-26 | 2019-04-26 | Manual brake shoe gap adjusting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210047480U true CN210047480U (en) | 2020-02-11 |
Family
ID=69381351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920587380.1U Active CN210047480U (en) | 2019-04-26 | 2019-04-26 | Manual brake shoe gap adjusting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210047480U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109987113A (en) * | 2019-04-26 | 2019-07-09 | 四川江山轨道交通装备制造有限公司 | Brake clearance manual adjustment mechanism |
-
2019
- 2019-04-26 CN CN201920587380.1U patent/CN210047480U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109987113A (en) * | 2019-04-26 | 2019-07-09 | 四川江山轨道交通装备制造有限公司 | Brake clearance manual adjustment mechanism |
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