CN207777475U - A kind of novel rear brake caliper piston - Google Patents
A kind of novel rear brake caliper piston Download PDFInfo
- Publication number
- CN207777475U CN207777475U CN201820093999.2U CN201820093999U CN207777475U CN 207777475 U CN207777475 U CN 207777475U CN 201820093999 U CN201820093999 U CN 201820093999U CN 207777475 U CN207777475 U CN 207777475U
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- cavity portion
- strengthening
- cavity
- piston
- brake caliper
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Abstract
The utility model discloses a kind of novel rear brake caliper pistons, including piston only, plunger shaft set on piston only front end, the plunger shaft includes the first cavity portion, the second cavity portion, third cavity portion, the 4th cavity portion that internal diameter is sequentially reduced from outside to inside, and first cavity portion, the second cavity portion, third cavity portion, the 4th cavity portion are cylinder.The rear brake caliper piston of the utility model is simple in structure, intensity is high and service life is long.
Description
Technical field
The utility model is related to a kind of rear brake caliper pistons.
Background technology
Brake piston is the heart of automobile brake, bears the mechanical load and thermic load of alternation, is worked in brake caliper
One of worst key components and parts of condition.The function of piston is subject to fluid pressure, the pressure that brake-fluid is provided by brake pump
The piston of moving calipers is pushed, piston (inside spin can play the role of limiting displacement) pushes mandril, mandril to push friction again
Piece, friction plate contact generation friction with frictional disk to brake, and frictional disk and entirety are generally located at front-rear axle.The brake of automobile
Vehicle system includes clamp, the preceding brake caliper piston coordinated with clamp and rear brake caliper piston；However existing rear brake caliper piston
Intensity it is not high to reduce the service life.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of simple in structure, high intensity and
Brake caliper piston after with long service life.
To achieve the above object, the utility model provides following technical solution：A kind of novel rear brake caliper piston, packet
Piston only is included, the plunger shaft of piston only front end is set to, the plunger shaft includes first that internal diameter is sequentially reduced from outside to inside
Cavity portion, the second cavity portion, third cavity portion, the 4th cavity portion.First cavity portion and the second cavity portion are cylinder
Shape, and the transition part I that chamfer angle is A ° is provided between first cavity portion and the second cavity portion；The third
Cavity portion is cylinder, is provided with strengthening portion I between the second cavity portion and third cavity portion, the strengthening portion I by outside to
Interior is once strengthening portion chamfering I, strengthening segment, strengthening portion chamfering II, and the chamfer angle of the strengthening portion chamfering I is B °, described
Strengthening portion chamfering II chamfer angle be C °, the strengthening segment be cylinder.
The utility model is further arranged to：It is provided with chamfer angle between the strengthening portion I and the second cavity portion
For D ° of transition part II strengthening portion I and second is improved by the way that transition part II is arranged between strengthening portion I and the second cavity portion
Bonding strength between cavity portion, to improve the service life of piston only.
The utility model is further arranged to：It is provided with strengthening portion fillet on the end face of the third cavity portion, if
It sets strengthening portion fillet and is conducive to improve the intensity of third cavity portion, and the stress of a part can be eliminated；In the 4th cavity portion
Inner wall on set there are three the gas vent that be distributed by even circumferential, setting gas vent is for ensureing putting down for piston hole external and internal pressure
Weighing apparatus.
The utility model is further arranged to：Four cavity portions are cylinder, in the third cavity portion and the
Strengthening portion II is provided between four cavity portions, the strengthening portion II has is followed successively by strengthening portion circular arc I, strengthening portion chamfering in outside
III, the chamfer angle of strengthening portion circular arc II, the strengthening portion chamfering III is E °.Between third cavity portion and the 4th cavity portion
It is provided with strengthening portion II, improves the bonding strength of third cavity portion and the 4th cavity portion, to improve the whole of piston only
Body intensity.
The utility model is further arranged to：It is distributed by even circumferential there are four being set at the rear end face edge for stating piston only
Sector notch.The sector notch is so more effective that prevent piston only from being rotated under entrucking state.
The utility model is further arranged to：It is connected with reinforcement between the front end face and side wall of the piston
Portion III, the strengthening portion III are followed successively by the first reinforcement circular arc, the first reinforcement inclined-plane, the second reinforcement circle by front end face to side wall
Arc, second reinforce inclined-plane, third reinforcement circular arc, third and reinforce inclined-plane, the 4th reinforcement inclined-plane.By the way that strengthening portion III is arranged, improve
Bonding strength between front end face and side wall, and abrasion can be lowered and improve service life, to further improving piston sheet
The integral strength of body.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model embodiment；
Fig. 2 is the partial enlarged view at I in Fig. 1；
Fig. 3 is the partial enlarged view at II in Fig. 1；
Fig. 4 is the partial enlarged view at III in Fig. 1；
Fig. 5 is the side view of the utility model embodiment；
Label and corresponding component names in attached drawing：1- piston onlies, the first cavity portions of 11-, 11a- transition parts I, 12-
Two cavity portions, 12a- transition parts II, 13- thirds cavity portion, 13a- strengthening portions fillet, the 4th cavity portions of 14-, 14a- gas vents,
15- strengthening portions III, 15a- first reinforce circular arc, 15b- first reinforces inclined-plane, 15c- second reinforces circular arc, 15d- second reinforces tiltedly
Circular arc is reinforced in face, 15e- thirds, 15f- thirds reinforce inclined-plane, 15g- the 4th reinforces inclined-plane, 16- strengthening portions I, 16a- strengthening portions and falls
Angle I, 16b- strengthening segments, 16c- strengthening portions chamfering II, 17- strengthening portions II, 17a- strengthening portions circular arc I, 17b- strengthening portions chamfering III,
17c- strengthening portions circular arc II, 18- sector notch.
Specific implementation mode
The utility model embodiment is described further referring to figs. 1 to Fig. 4.
A kind of novel rear brake caliper piston, including piston only 1 are set to the plunger shaft of 1 front end of piston only, the work
Plug chamber from outside to inside include internal diameter be sequentially reduced the first cavity portion 11, the second cavity portion 12, third cavity portion 13, the 4th cavity
Portion 14.First cavity portion 11 and the second cavity portion 12 is cylinder, and in first cavity portion 11 and second
I 11a of transition part that chamfer angle is A ° is provided between cavity portion 12, the angular range of the I 11a chamferings of transition part exists
28°≤A°≤32°；The third cavity portion 13 is cylinder, is arranged between the second cavity portion 12 and third cavity portion 13
It is once I 16a of strengthening portion chamfering, strengthening segment 16b, strengthening portion chamfering from outside to inside to have strengthening portion I 16, the strengthening portion I 16
Ⅱ16c；The chamfer angle of I 16a of strengthening portion chamfering is B °, the angular range of I 16c of strengthening portion chamfering 24 °≤B≤
26°；The chamfer angle of II 16c of strengthening portion chamfering is C °, and angular range is at 23 °≤C °≤27 °；The strengthening segment is
It is cylindrical.
The utility model is further arranged to：It is provided with chamfering between the strengthening portion I 16 and the second cavity portion 12
II 12a of transition part that angle is D °, the chamfer angle range of II 12a of transition part is at 44 °≤D °≤46 °；By in strengthening portion I 16
II 12a of transition part is set between the second cavity portion 12, and the connection improved between strengthening portion I 16 and the second cavity portion 12 is strong
Degree, to improve the service life of piston only 1.
The utility model is further arranged to：It is provided with strengthening portion fillet on the end face of the third cavity portion 13,
Strengthening portion fillet is set and is conducive to improve the intensity of third cavity portion 13, and the stress of a part can be eliminated；In the 4th chamber
It is set on the inner wall in body portion 14 there are three the gas vent 14a being distributed by even circumferential, it is for ensureing piston hole that gas vent 14a, which is arranged,
The balance of external and internal pressure.
The utility model is further arranged to：Four cavity portions be cylinder, the third cavity portion 13 with
Strengthening portion II 17 is provided between 4th cavity portion 14, the strengthening portion II 17 has is followed successively by strengthening portion circular arc I in outside
17a, III 17b of strengthening portion chamfering, II 17c of strengthening portion circular arc；The chamfer angle of III 17b of strengthening portion chamfering is E °, chamfering
Angular range is at 29 °≤E °≤31 °.It is provided with strengthening portion II 17 between third cavity portion 13 and the 4th cavity portion 14, improves
The bonding strength of third cavity portion 13 and the 4th cavity portion 14, to improving the integral strength of piston only 1.
The utility model is further arranged to：By even circumferential point there are four being set at the rear end face edge for stating piston only 1
The sector notch 18 of cloth.The sector notch 18 is so more effective that prevent piston only 1 from being rotated under entrucking state.
The utility model is further arranged to：It is connected with reinforcement between the front end face and side wall of the piston
Portion III 15, the strengthening portion III 15 are followed successively by the first reinforcement circular arc 15a by front end face to side wall, first reinforce inclined-plane 15b, the
Two, which reinforce circular arc 15c, the second reinforcement inclined-plane 15d, third, reinforces circular arc 15e, third reinforcement inclined-plane 15f, the 4th reinforcement inclined-plane
15g；The arc radius that described first reinforces circular arc 15a is 0.6mm~1.0mm, and second reinforces circular arc 15c and third reinforcement circle
The arc radius range of arc 15e is 1.3mm~1.7mm.By the way that strengthening portion III 15 is arranged, improve between front end face and side wall
Bonding strength, and can lower abrasion improve service life, to further improve the integral strength of piston only 1.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, the skill of this field
Art personnel carry out common variations and alternatives within the scope of technical solutions of the utility model should be included in the guarantor of the utility model
It protects in range.
Claims (6)
1. a kind of novel rear brake caliper piston, including piston only（1）, it is set to piston only（1）The plunger shaft of front end, it is described
Plunger shaft includes the first cavity portion that internal diameter is sequentially reduced from outside to inside（11）, the second cavity portion（12）, third cavity portion
（13）, the 4th cavity portion（14）, it is characterized in that：First cavity portion（11）With the second cavity portion（12）It is cylinder,
And in first cavity portion（11）With the second cavity portion（12）Between be provided with transition part I（11a）；The third cavity
Portion（13）For cylinder, in the second cavity portion（12）With third cavity portion（13）Between be provided with strengthening portion I（16）, described adds
Strong portion I（16）It is once strengthening portion chamfering I from outside to inside（16a）, strengthening segment（16b）, strengthening portion chamfering II（16c）, described
Strengthening segment（16b）For cylinder.
2. a kind of novel rear brake caliper piston according to claim 1, it is characterized in that：In the strengthening portion I（16）
With the second cavity portion（12）Between be provided with transition part II（12a）.
3. a kind of novel rear brake caliper piston according to claim 1, it is characterized in that：In the third cavity portion
（13）End face on be provided with strengthening portion fillet（13a）, in the 4th cavity portion（14）Inner wall on set there are three by circumference
Equally distributed gas vent（14a）.
4. a kind of novel rear brake caliper piston according to claim 1, it is characterized in that：Four cavity portions are cylinder
Shape, in the third cavity portion（13）It is provided with strengthening portion II between the 4th cavity portion（17）, the strengthening portion II
（17）Strengthening portion circular arc I is followed successively by outside having（17a）, strengthening portion chamfering III（17b）, strengthening portion circular arc II（17c）.
5. a kind of novel rear brake caliper piston according to claim 1, it is characterized in that：Stating piston only（1）After
End face edge sets that there are four the sector notch that are distributed by even circumferential（18）.
6. a kind of novel rear brake caliper piston according to claim 1, it is characterized in that：In the piston only（1）
Front end face and side wall between be connected with strengthening portion III（15）, the strengthening portion III（15）By front end face to side wall according to
Secondary is the first reinforcement circular arc（15a）, first reinforce inclined-plane（15b）, second reinforce circular arc（15c）, second reinforce inclined-plane（15d）、
Third reinforces circular arc（15e）, third reinforce inclined-plane（15f）, the 4th reinforce inclined-plane（15g）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820093999.2U CN207777475U (en) | 2018-01-20 | 2018-01-20 | A kind of novel rear brake caliper piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820093999.2U CN207777475U (en) | 2018-01-20 | 2018-01-20 | A kind of novel rear brake caliper piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207777475U true CN207777475U (en) | 2018-08-28 |
Family
ID=63213686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820093999.2U Active CN207777475U (en) | 2018-01-20 | 2018-01-20 | A kind of novel rear brake caliper piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207777475U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113182377A (en) * | 2021-05-10 | 2021-07-30 | 大昌汽车部件股份有限公司 | Piston blank and processing technology thereof |
-
2018
- 2018-01-20 CN CN201820093999.2U patent/CN207777475U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113182377A (en) * | 2021-05-10 | 2021-07-30 | 大昌汽车部件股份有限公司 | Piston blank and processing technology thereof |
| CN113182377B (en) * | 2021-05-10 | 2022-07-01 | 大昌汽车部件股份有限公司 | Piston blank and processing technology thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 317600 No. 1 Qiantangyuan South Road, Yucheng Street, Yuhuan City, Taizhou City, Zhejiang Province Patentee after: Dachang Automobile Parts Co., Ltd. Address before: 317699 No. 1 Qiantangyuan South Road, Yucheng Street, Yuhuan County, Taizhou City, Zhejiang Province Patentee before: Taizhou Dachang Auto Parts Co. Ltd. |