CN212028392U

CN212028392U - Casting anti-slip automobile rear brake caliper piston

Info

Publication number: CN212028392U
Application number: CN202020730264.3U
Authority: CN
Inventors: 卓志杨; 施剑波
Original assignee: TAIZHOU WANZHOU MACHINERY CO Ltd
Current assignee: TAIZHOU WANZHOU MACHINERY CO Ltd
Priority date: 2020-05-06
Filing date: 2020-05-06
Publication date: 2020-11-27
Anticipated expiration: 2030-05-06

Abstract

The utility model discloses a braking pincers piston behind car that skids is prevented in casting, including the piston body, the piston chamber has been seted up to the rear end inside of piston body, the circumference outer wall that the piston body is close to its front end has seted up the ring channel, the exhaust hole has been seted up on the annular wall of ring channel, the exhaust hole with the piston chamber is linked together, circular concave station has been seted up at the front end middle part of piston body, the peripheral distribution of circular concave station has a plurality of groups louvre and bar groove, and the louvre with the exhaust hole is linked together, a plurality of groups louvre and a plurality of groups bar groove alternate arrangement, fan-shaped breach has been seted up to the front end edge of piston body. The utility model discloses, the louvre of setting is favorable to the water conservancy diversion, increases the heat dispersion of piston, prolongs the life of piston, has solved the problem of proposing in the background art.

Description

Casting anti-slip automobile rear brake caliper piston

Technical Field

The utility model relates to a braking pincers piston technical field specifically is a braking pincers piston behind car that skids is prevented in casting.

Background

The brake system of the automobile comprises a caliper, a rear brake caliper piston and a front brake piston which are matched with the caliper.

The piston of the brake caliper bears the pressure of liquid, the brake liquid pushes the piston of the brake caliper through the pressure provided by the brake pump, the piston pushes the ejector rod, the ejector rod pushes the friction plate, and the friction plate is contacted with the friction plate to generate friction for braking.

However, the existing brake caliper piston has poor heat dissipation effect, and affects the braking performance, so that the driving safety is affected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a braking pincers piston behind car that skids is prevented in casting, the louvre of setting is favorable to the water conservancy diversion, increases the heat dispersion of piston, prolongs the life of piston, has solved the problem of proposing among the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a braking pincers piston behind car that skids is prevented in casting, includes the piston body, the piston chamber has been seted up to the rear end inside of piston body, the piston body is close to the circumference outer wall of its front end and has seted up the ring channel, the exhaust hole has been seted up on the annular wall of ring channel, the exhaust hole with the piston chamber is linked together, circular concave station has been seted up at the front end middle part of piston body, the peripheral distribution of circular concave station has a plurality of groups louvre and bar groove, and the louvre with the exhaust hole is linked together, a plurality of groups louvre and a plurality of groups bar groove alternate arrangement, fan-shaped breach has been seted up to the front end edge of.

Preferably, the rear end inner cavity of the piston cavity is provided with a wide cavity, the front end inner cavity of the piston cavity is provided with a narrow cavity, and the narrow cavity is communicated with the wide cavity.

Preferably, the inner wall of the wide cavity is provided with a plurality of groups of oil storage tanks.

Preferably, the narrow cavity is in communication with the vent hole.

Preferably, the number of the exhaust holes is the same as the number of the groups of the heat dissipation holes.

Preferably, the number of the groups of the heat dissipation holes is not less than 4, the number of the heat dissipation holes in each group is not less than 4, and the heat dissipation holes in each group are sequentially arranged at intervals.

Preferably, the number of the groups of the strip-shaped grooves is not less than 4, and the number of the strip-shaped grooves in each group is 1.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses, the louvre of setting is favorable to the water conservancy diversion, increases the heat dispersion of piston, prolongs the life of piston.

2. The utility model discloses, the louvre that sets up and the bar groove that sets up can increase the transversal cutting frictional force of terminal surface before the piston body and brake block, prevent to skid, have promoted brake performance.

Drawings

Fig. 1 is a schematic structural view of a piston cavity perspective view provided at the rear end of the piston body of the present invention;

fig. 2 is a schematic structural view of a perspective view of a heat dissipation hole and a bar-shaped groove formed in the front end surface of the piston body according to the present invention;

fig. 3 is a schematic structural view of a three-dimensional view of the annular groove formed on the surface of the piston body near the front end of the piston;

fig. 4 is a schematic structural view of a front view of the piston body of the present invention;

3 fig. 3 5 3 is 3 a 3 schematic 3 structural 3 view 3 of 3 the 3 present 3 invention 3 along 3 the 3 sectional 3 view 3 a 3- 3 a 3 in 3 fig. 3 4 3. 3

In the figure: 1-piston body, 2-piston cavity, 201-wide cavity, 2011-oil storage tank, 202-narrow cavity, 3-annular groove, 4-exhaust hole, 5-circular concave platform, 6-heat dissipation hole, 7-strip groove and 8-sector notch.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 5, the present invention provides a technical solution: the utility model provides a casting is prevented brake caliper piston behind car that skids, includes piston body 1, piston body 1 adopts 20Cr integrative casting to make, piston chamber 2 has been seted up to piston body 1's rear end inside, the rear end inner chamber in piston chamber 2 is provided with wide chamber 201, the front end inner chamber in piston chamber 2 is provided with narrow chamber 202, narrow chamber 202 with wide chamber 201 is linked together, sets up the internal diameter in narrow chamber 202 and reduces to narrow chamber 202 direction by wide chamber 201, then has further improved connection structure's spacing effect.

A plurality of groups of oil storage grooves 2011 are formed in the inner wall of the wide cavity 201, the oil storage grooves 2011 are used for filling lubricating oil, the plurality of groups of oil storage grooves 2011 are mutually crossed, the flowability of the lubricating oil is improved, the lubricating range is improved, and then the wear-resistant effect of the piston is ensured.

The narrow cavity 202 is communicated with the exhaust hole 4.

The circumference outer wall that piston body 1 is close to its front end has seted up ring channel 3, exhaust hole 4 has been seted up on the annular wall of ring channel 3, exhaust hole 4 with piston chamber 2 is linked together, fan-shaped breach 8 has been seted up to the front end edge of piston body 1, and fan-shaped breach 8 can form spacing region, has improved the fixed effect to piston body 1.

Circular concave station 5 has been seted up at the front end middle part of piston body 1, the peripheral distribution of circular concave station 5 has a plurality of groups louvre 6 and bar groove 7, and louvre 6 with exhaust hole 4 is linked together, a plurality of groups louvre 6 and a plurality of groups bar groove 7 alternate arrangement, and the louvre 6 of setting not only is favorable to the water conservancy diversion, increases the heat dispersion of piston, prolongs the life of piston, and the louvre 6 that sets up and the bar groove 7 that sets up can increase the transverse cutting frictional force of 1 preceding terminal surface of piston body and brake block moreover, prevents to skid, has promoted braking performance.

The number of the exhaust holes 4 is the same as the number of the groups of the heat dissipation holes 6.

4 groups are no less than to the group number of louvre 6, every group 4 are no less than to the quantity of louvre 6, and each louvre 6 interval arrangement in proper order in every group, 4 groups are no less than to the group number of bar groove 7, and every group the quantity of bar groove 7 is 1, has further strengthened the radiating effect and the brake performance of piston body 1.

The working principle is as follows: when this braking pincers piston behind car that skids is prevented in casting used, owing to set up louvre 6, be favorable to the water conservancy diversion, increase the heat dispersion of piston, the life of extension piston owing to set up 6 bar grooves 7 of louvre, can increase the crosscut frictional force of 1 preceding terminal surfaces of piston body and brake block, prevent to skid, promoted braking performance.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a braking pincers piston behind car that skids is prevented in casting, includes piston body (1), its characterized in that: piston chamber (2) have been seted up to the rear end of piston body (1) inside, ring channel (3) have been seted up to the circumference outer wall that piston body (1) is close to its front end, exhaust hole (4) have been seted up on the annular wall of ring channel (3), exhaust hole (4) with piston chamber (2) are linked together, circular concave station (5) have been seted up at the front end middle part of piston body (1), the peripheral distribution of circular concave station (5) has a plurality of groups louvre (6) and bar groove (7), and louvre (6) with exhaust hole (4) are linked together, a plurality of groups louvre (6) and a plurality of groups bar groove (7) alternate arrangement, fan-shaped notch (8) have been seted up to the front end edge of piston body (1).

2. A cast anti-slip automotive rear brake caliper piston according to claim 1, further characterized by: the rear end inner cavity of the piston cavity (2) is provided with a wide cavity (201), the front end inner cavity of the piston cavity (2) is provided with a narrow cavity (202), and the narrow cavity (202) is communicated with the wide cavity (201).

3. A cast anti-slip automotive rear brake caliper piston according to claim 2, wherein: the inner wall of the wide cavity (201) is provided with a plurality of groups of oil storage tanks (2011).

4. A cast anti-slip automotive rear brake caliper piston according to claim 3, wherein: the narrow cavity (202) is communicated with the exhaust hole (4).

5. A cast anti-slip automotive rear brake caliper piston according to claim 1, further characterized by: the number of the exhaust holes (4) is the same as the number of the groups of the heat dissipation holes (6).

6. A cast anti-slip automotive rear brake caliper piston according to claim 5, wherein: the number of the groups of the heat dissipation holes (6) is not less than 4, the number of the heat dissipation holes (6) in each group is not less than 4, and the heat dissipation holes (6) in each group are sequentially arranged at intervals.

7. A cast anti-slip automotive rear brake caliper piston according to claim 1, further characterized by: the number of the groups of the strip-shaped grooves (7) is not less than 4, and each group of the strip-shaped grooves (7) is 1.