CN110778626A - Brake caliper capable of preventing piston from being stuck - Google Patents
Brake caliper capable of preventing piston from being stuck Download PDFInfo
- Publication number
- CN110778626A CN110778626A CN201911054203.8A CN201911054203A CN110778626A CN 110778626 A CN110778626 A CN 110778626A CN 201911054203 A CN201911054203 A CN 201911054203A CN 110778626 A CN110778626 A CN 110778626A
- Authority
- CN
- China
- Prior art keywords
- chamfer
- degrees
- piston
- brake caliper
- vertical direction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
- F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/02—Fluid-pressure mechanisms
- F16D2125/04—Cylinders
Abstract
The invention provides a brake caliper capable of preventing a piston from being stuck, which comprises a sealing groove and an oil inlet hole, wherein the sealing groove is used for mounting the piston and comprises an inner chamfer and an outer chamfer, the inner chamfer is close to the oil inlet hole, the outer chamfer is far away from the oil inlet hole, an included angle α between the inner chamfer and the vertical direction and the thickness D of the inner chamfer are set to be not less than 25 degrees and not more than α degrees and not more than 30 degrees, D is 5mm, an included angle theta between the outer chamfer and the vertical direction and the thickness E of the outer chamfer are set to be not less than 25 degrees and not more than 30 degrees, E is 7 mm.
Description
Technical Field
The invention relates to the technical field of brake calipers, in particular to a brake caliper capable of preventing a piston from being stuck.
Background
The brake caliper is an assembly attached to the front and the rear of a brake disc, a single or a plurality of pistons are arranged in the brake caliper, pressure is generated when a brake pedal is stepped down, brake oil is forced to push the pistons, and then brake pads are pushed to clamp the brake disc inwards to achieve the effect of braking and speed reduction. At present, chamfer angles of the inner side and the outer side of a sealing groove of a brake caliper on the market are both 45 degrees, the thickness of the chamfer angles is 0.5mm, and the condition that a piston does not return after being pushed out exists.
Aiming at the problem that a piston of a brake caliper has a potential jamming hazard in the prior art, the invention provides a new solution.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the brake caliper capable of preventing the piston from being stuck.
The invention solves the technical problems through the following technical means:
the brake caliper capable of preventing the piston from being stuck comprises a sealing groove and an oil inlet hole, wherein the sealing groove is used for mounting the piston and comprises an inner chamfer and an outer chamfer, the inner chamfer is close to the oil inlet hole, the outer chamfer is far away from the oil inlet hole, an included angle α formed by the inner chamfer and the vertical direction and the thickness D of the inner chamfer is set to be more than or equal to 25 degrees and less than or equal to α degrees and less than or equal to 30 degrees, D is 5mm, an included angle theta formed by the outer chamfer and the vertical direction and the thickness E of the outer chamfer are set to be more than or equal to 25 degrees and less than or equal to 30 degrees, and E is 7 mm.
Preferably, the included angle α between the inner chamfer and the vertical direction and the thickness D of the inner chamfer are set to be α -30 degrees and D-5 mm, and the included angle theta between the outer chamfer and the vertical direction and the thickness E of the outer chamfer are set to be theta-30 degrees and E-7 mm.
The invention has the advantages that:
compared with the prior art, the included angle between the chamfer of the sealing groove and the vertical direction is reduced, and the thickness of the chamfer at the outer side is increased, so that the structure of the sealing groove is more favorable for piston return, and the situation that the piston is blocked is avoided.
Drawings
FIG. 1 is a schematic structural view of a brake caliper according to an embodiment of the present invention;
fig. 2 is an enlarged view of a point a in fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Example 1
As shown in fig. 1, the present embodiment provides a piston seizure prevention brake caliper, which includes: a sealing groove and an oil inlet hole 10 for mounting a piston; the seal groove includes: inner chamfer and outer chamfer; the inner chamfer is close to the oil inlet hole 10, and the outer chamfer is far away from the oil inlet hole 10;
as shown in FIG. 2, an included angle α between the inner side chamfer and the vertical direction and the thickness D of the inner side chamfer are set to be equal to or larger than 25 degrees and equal to or smaller than α degrees and equal to or smaller than 30 degrees, and D is equal to or larger than 5mm, an included angle theta between the outer side chamfer and the vertical direction and the thickness E of the outer side chamfer are set to be equal to or larger than 25 degrees and equal to or smaller than 30 degrees, and E is equal to or larger than 7 mm.
Compared with the prior art, the chamfer angle of the sealing groove is reduced with the included angle in the vertical direction, and the thickness of the chamfer angle in the outer side is increased, so that the structure of the sealing groove is more favorable for piston return, and the condition of piston blocking is avoided.
Example 2
The included angle α between the inner side chamfer and the vertical direction and the thickness D of the inner side chamfer are set to be α degrees and 5mm, the included angle theta between the outer side chamfer and the vertical direction and the thickness E of the outer side chamfer are set to be theta 30 degrees and E is 7 mm.
It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (2)
1. The brake caliper capable of preventing the piston from being stuck comprises a sealing groove used for mounting the piston and an oil inlet (10), wherein the sealing groove comprises an inner chamfer and an outer chamfer, the inner chamfer is close to the oil inlet (10), the outer chamfer is far away from the oil inlet (10), and the brake caliper is characterized in that the included angle between the inner chamfer and the vertical direction is α, the thickness D of the inner chamfer is set to be not less than 25 degrees and not more than α and not more than 30 degrees, D is 5mm, the included angle between the outer chamfer and the vertical direction is theta, and the thickness E of the outer chamfer is set to be not less than 25 degrees and not more than 30 degrees, and E is 7 mm.
2. The brake caliper capable of preventing the piston from being stuck is characterized in that an included angle α between the inner side chamfer and the vertical direction is set to be α degrees and D is 5mm, an included angle theta between the outer side chamfer and the vertical direction is set to be 30 degrees and E is set to be 7 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911054203.8A CN110778626A (en) | 2019-10-31 | 2019-10-31 | Brake caliper capable of preventing piston from being stuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911054203.8A CN110778626A (en) | 2019-10-31 | 2019-10-31 | Brake caliper capable of preventing piston from being stuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110778626A true CN110778626A (en) | 2020-02-11 |
Family
ID=69388227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911054203.8A Pending CN110778626A (en) | 2019-10-31 | 2019-10-31 | Brake caliper capable of preventing piston from being stuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110778626A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3478650A (en) * | 1967-05-13 | 1969-11-18 | Teves Gmbh Alfred | Piston-cylinder assembly with dustcap |
| JPS5958239A (en) * | 1982-08-30 | 1984-04-03 | アルフレツド・テヴエス・ゲ−エムベ−ハ− | Disk brake caliper and its manufacture |
| KR20060131577A (en) * | 2005-06-16 | 2006-12-20 | 한국델파이주식회사 | Twin caliper brake for a car |
| KR20070060520A (en) * | 2005-12-08 | 2007-06-13 | 주식회사 만도 | Disc brake |
| KR20080044568A (en) * | 2006-11-16 | 2008-05-21 | 현대모비스 주식회사 | Disk brake |
| CN201944159U (en) * | 2010-12-13 | 2011-08-24 | 浙江亚太机电股份有限公司 | Brake caliper assembly |
-
2019
- 2019-10-31 CN CN201911054203.8A patent/CN110778626A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3478650A (en) * | 1967-05-13 | 1969-11-18 | Teves Gmbh Alfred | Piston-cylinder assembly with dustcap |
| JPS5958239A (en) * | 1982-08-30 | 1984-04-03 | アルフレツド・テヴエス・ゲ−エムベ−ハ− | Disk brake caliper and its manufacture |
| KR20060131577A (en) * | 2005-06-16 | 2006-12-20 | 한국델파이주식회사 | Twin caliper brake for a car |
| KR20070060520A (en) * | 2005-12-08 | 2007-06-13 | 주식회사 만도 | Disc brake |
| KR20080044568A (en) * | 2006-11-16 | 2008-05-21 | 현대모비스 주식회사 | Disk brake |
| CN201944159U (en) * | 2010-12-13 | 2011-08-24 | 浙江亚太机电股份有限公司 | Brake caliper assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200211 |