CN204567621U - A kind of brake gear - Google Patents
A kind of brake gear Download PDFInfo
- Publication number
- CN204567621U CN204567621U CN201520166191.9U CN201520166191U CN204567621U CN 204567621 U CN204567621 U CN 204567621U CN 201520166191 U CN201520166191 U CN 201520166191U CN 204567621 U CN204567621 U CN 204567621U
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- China
- Prior art keywords
- brake holding
- brake
- connecting portion
- cross
- hub
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Abstract
The utility model discloses a kind of brake gear, described brake gear comprises the wheel being positioned at the left and right sides, the hub shell be fixedly connected with left and right sides wheel respectively, connect the hub axle of the hub shell of the left and right sides, be arranged on the brake holding dish on described hub axle, described brake holding dish is outside equipped with the brake holding skin of annular, one end and the bracket arm of described brake holding skin are fixedly connected, when pulling described bracket arm, brake holding skin contacts with brake holding dish and to be braked by brake holding dish, the two ends of described hub axle have the first connecting portion, the cross section of the outside face of the first described connecting portion is polygon, described hub shell has a mounting hole, the cross section outer rim on the surface of described mounting hole is polygon, the outside face of the first described connecting portion is matched with the surface of described hub shell mounting hole.
Description
Technical field
the utility model relates to a kind of brake gear.
Background technology
brake holding dish and the hub axle of brake gear are in the prior art fixedly connected, and can wear and tear between usual hub axle and brake holding dish, hub shell, and the effect of impact brake, reduces service life.
Summary of the invention
technical problem to be solved in the utility model overcomes the deficiencies in the prior art, provides a kind of structure simple brake gear.
for solving above technical matters, the utility model takes following technical scheme:
a kind of brake gear, described brake gear comprises the wheel being positioned at the left and right sides, the hub shell be fixedly connected with left and right sides wheel respectively, connect the hub axle of the hub shell of the left and right sides, be arranged on the brake holding dish on described hub axle, described brake holding dish is outside equipped with the brake holding skin of annular, one end and the bracket arm of described brake holding skin are fixedly connected, when pulling described bracket arm, brake holding skin contacts with brake holding dish and to be braked by brake holding dish, the two ends of described hub axle have the first connecting portion, the cross section of the outside face of the first described connecting portion is polygon, described hub shell has a mounting hole, the cross section outer rim on the surface of described mounting hole is polygon, the outside face of the first described connecting portion is matched with the surface of described hub shell mounting hole, described hub axle also comprises one second connecting portion, the cross section of the outside face of the second described connecting portion becomes polygon, described brake holding dish has a centre hole, the cross section outer rim on the surface of described centre hole is polygon, the outside face of the second described connecting portion is matched with the surface of described brake holding center hole.
preferably, the cross section of the outside face of the first described connecting portion is square, and the cross section outer rim on the surface of the mounting hole of described hub shell is in the square matched with the cross section of the first described joint face.
preferably, the cross section of the outside face of the second described connecting portion is square, and the cross section outer rim on the surface of the centre hole of described brake holding dish is the square matched with the cross section of the second described connecting portion.
preferably, the inside face of described brake holding skin is concavo-convex gear-like, described brake holding dish with the surface contacted of described brake holding skin also in concavo-convex gear-like, when described brake holding dish contacts with described brake holding is skin-deep, the friction force of increase brake holding dish and brake holding skin.
preferably, described wheel comprises wheel hub, and described hub shell embeds in wheel hub and is fixedly connected with wheel hub.
due to the enforcement of above technical scheme, the utility model compared with prior art tool has the following advantages:
the connection of the hub axle of brake gear described in the utility model and described hub shell, brake holding dish is the embedded connection of quadrangle, in the process of brake, bracket arm is pulled, make brake holding skin embrace described brake holding dish, because brake holding dish and described hub axle are fixedly connected, hub axle is braked under the effect of brake holding dish, because hub axle and hub shell are fixedly connected, hub shell is also braked, thus wheel is braked, and completes brake process.Because the first connecting portion is quadrilateral structure with the cross section of the second outside face be connected, the slip between hub axle and hub shell, brake holding dish can well be prevented like this, and quadrilateral structure is easy to process.The inside face of described brake holding skin is concavo-convex gear-like, described brake holding dish with the surface contacted of described brake holding skin also in concavo-convex gear-like, the friction force of brake holding dish and brake holding skin can be increased, prevent from skidding between brake holding dish and brake holding skin and affecting the effect of braking.
Accompanying drawing explanation
below in conjunction with accompanying drawing and concrete embodiment, the utility model is described in more detail.
fig. 1 is the structural representation of a kind of brake gear described in the utility model;
wherein: 1, wheel; 2, hub shell; 3, brake holding dish; 4, hub axle.
Detailed description of the invention
be illustrated in figure 1 a kind of brake gear described in the utility model, described brake gear comprises the wheel 1 being positioned at the left and right sides, the hub shell 2 be fixedly connected with left and right sides wheel 1 respectively, connect the hub axle 4 of the hub shell 2 of the left and right sides, be arranged on the brake holding dish 3 on described hub axle 4, described brake holding dish 3 is outside equipped with the brake holding skin of annular, one end and the bracket arm of described brake holding skin are fixedly connected, when pulling described bracket arm, brake holding skin contacts with brake holding dish 3 and to be braked by brake holding dish 3, the two ends of described hub axle 4 have the first connecting portion, the cross section of the outside face of the first described connecting portion is polygon, described hub shell 2 has a mounting hole, the cross section outer rim on the surface of described mounting hole is polygon, the outside face of the first described connecting portion is matched with the surface of described hub shell 2 mounting hole, described hub axle 4 also comprises one second connecting portion, the cross section of the outside face of the second described connecting portion becomes polygon, described brake holding dish 3 has a centre hole, the cross section outer rim on the surface of described centre hole is polygon, the outside face of the second described connecting portion is matched with the surface of described brake holding dish 3 centre hole.In a preferred embodiment, the cross section of the outside face of the first described connecting portion is square, and the cross section outer rim on the surface of the mounting hole of described hub shell 2 is in the square matched with the cross section of the first described joint face.The cross section of the outside face of the second described connecting portion is square, and the cross section outer rim on the surface of the centre hole of described brake holding dish 3 is the square matched with the cross section of the second described connecting portion.The inside face of described brake holding skin is concavo-convex gear-like, described brake holding dish 3 with the surface contacted of described brake holding skin also in concavo-convex gear-like, when described brake holding dish 3 contacts with described brake holding is skin-deep, increase the friction force of brake holding dish 3 and brake holding skin.Described wheel 1 comprises wheel hub, and described hub shell 2 embeds in wheel hub and is fixedly connected with wheel hub.
the hub axle 4 of brake gear is the embedded connection of quadrangle with the connection of described hub shell 2, brake holding dish 3, in the process of brake, bracket arm is pulled, make brake holding skin embrace described brake holding dish 3, because brake holding dish 3 and described hub axle 4 are fixedly connected, hub axle 4 is braked under the effect of brake holding dish 3, because hub axle 4 and hub shell 2 are fixedly connected, hub shell 2 is also braked, thus wheel 1 is braked, and completes brake process.Because the first connecting portion is quadrilateral structure with the cross section of the second outside face be connected, the slip between hub axle 4 and hub shell 2, brake holding dish 3 can well be prevented like this, and quadrilateral structure is easy to process.The inside face of described brake holding skin is concavo-convex gear-like, described brake holding dish 3 with the surface contacted of described brake holding skin also in concavo-convex gear-like, brake holding dish 3 and the friction force of brake holding skin can be increased, prevent from skidding between brake holding dish 3 and brake holding skin and affecting the effect of braking.
above the utility model is described in detail, but the utility model is not limited to the above embodiments.All equivalences done according to Spirit Essence of the present utility model change or modify, and all should be encompassed in protection domain of the present utility model.
Claims (5)
1. a brake gear, described brake gear comprises the wheel being positioned at the left and right sides, the hub shell be fixedly connected with left and right sides wheel respectively, hub axle, the brake holding dish be arranged on described hub axle of hub shell that be connected the left and right sides, described brake holding dish is outside equipped with the brake holding skin of annular, one end and the bracket arm of described brake holding skin are fixedly connected, when pulling described bracket arm, brake holding skin contacts with brake holding dish and to be braked by brake holding dish
It is characterized in that: the two ends of described hub axle have the first connecting portion, the cross section of the outside face of the first described connecting portion is polygon, described hub shell has a mounting hole, the cross section outer rim on the surface of described mounting hole is polygon, the outside face of the first described connecting portion is matched with the surface of described hub shell mounting hole
Described hub axle also comprises one second connecting portion, the cross section of the outside face of the second described connecting portion is polygon, described brake holding dish has a centre hole, the cross section outer rim on the surface of described centre hole is polygon, and the outside face of the second described connecting portion is matched with the surface of described brake holding center hole.
2. a kind of brake gear according to claim 1, it is characterized in that: the cross section of the outside face of the first described connecting portion is square, the cross section outer rim on the surface of the mounting hole of described hub shell is in the square matched with the cross section of the first described connecting portion.
3. a kind of brake gear according to claim 2, it is characterized in that: the cross section of the outside face of the second described connecting portion is square, the cross section outer rim on the surface of the centre hole of described brake holding dish is the square matched with the cross section of the second described connecting portion.
4. a kind of brake gear according to claim 3, it is characterized in that: the inside face of described brake holding skin is concavo-convex gear-like, described brake holding dish with the surface contacted of described brake holding skin also in concavo-convex gear-like, when described brake holding dish contacts with described brake holding is skin-deep, increase the friction force of brake holding dish and brake holding skin.
5. a kind of brake gear according to claim 4, is characterized in that: described wheel comprises wheel hub, and described hub shell embeds in wheel hub and is fixedly connected with wheel hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520166191.9U CN204567621U (en) | 2015-03-24 | 2015-03-24 | A kind of brake gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520166191.9U CN204567621U (en) | 2015-03-24 | 2015-03-24 | A kind of brake gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204567621U true CN204567621U (en) | 2015-08-19 |
Family
ID=53860299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520166191.9U Active CN204567621U (en) | 2015-03-24 | 2015-03-24 | A kind of brake gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204567621U (en) |
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2015
- 2015-03-24 CN CN201520166191.9U patent/CN204567621U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |