CN206600390U - A kind of motor brake piston - Google Patents
A kind of motor brake piston Download PDFInfo
- Publication number
- CN206600390U CN206600390U CN201720284369.9U CN201720284369U CN206600390U CN 206600390 U CN206600390 U CN 206600390U CN 201720284369 U CN201720284369 U CN 201720284369U CN 206600390 U CN206600390 U CN 206600390U
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- China
- Prior art keywords
- piston
- positioning hole
- tripping spring
- brake piston
- motor brake
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Abstract
The utility model is related to reductor braking technical field of structures, specifically disclose a kind of motor brake piston, including piston only (1) and tripping spring (2), the piston only (1) includes being used for the seal groove (3) for installing seal and the via (4) entered for fuel feeding liquid, the seal groove (3) is located on piston only (1) excircle, the via (4) is located in the middle part of piston only (1), the positioning hole (5) for installing tripping spring (2) is also evenly equipped with the piston only (1), the depth of the positioning hole (5) is more than the half of tripping spring (2) length.The utility model can effectively eliminate the oblique active force of tripping spring, improve the service life of brake piston, the security of increase equipment operation.
Description
Technical field
The utility model is related to reductor braking technical field of structures, and in particular to a kind of motor brake piston.
Background technology
In reductor braking technical field of structures, brake piston is an important composition in hydraulic motor and reductor
Part, its main function is quickly braked when motor or reductor need to be stopped.The hydraulic motor of prior art,
In reductor braking structure, brake piston generally uses stepped cylindrical body form design, and its internal end surface is provided with multiple springs,
To realize the function of braking.
In actual use, limited by conditions such as overall structure, cylinder body outside diameter and diameter of bore sizes
In system, the brake structure of prior art, the installation of its spring and brake piston is the surface connection in brake piston, is easily occurred
Larger error, easily causes dislocation.Simultaneously as there is perpendicularity and both ends of the surface depth of parallelism equal error in the processing of tripping spring,
When causing real work, tripping spring can form a certain size oblique active force to the periphery of brake piston, because braking is lived
It is gray cast iron (HT200) to fill in the material typically used, occurs that brake piston is become by oblique active force in real work
The phenomenon such as shape or damage, so that whole product has certain potential safety hazard.Prior art also lacks one kind and is avoided that braking
Spring produces oblique active force to brake piston periphery, the equipment for improving brake piston security.
The content of the invention
The purpose of this utility model is：For prior art brake piston in use, its tripping spring pair
The problem of brake piston produces oblique active force, influence device security can effectively eliminate there is provided a kind of motor brake piston
The oblique active force of tripping spring, improves the service life of brake piston, the security of increase equipment operation.
The technical solution adopted in the utility model is as follows：
A kind of motor brake piston, including piston only and tripping spring, the piston only include being used to install close
The seal groove of sealing and the via entered for fuel feeding liquid, the seal groove are located on piston only excircle, the mistake
Hole position is also evenly equipped with the positioning hole for installing tripping spring, the positioning hole in the middle part of piston only on the piston only
Depth be more than tripping spring length half.
Preferably, the positioning hole and tripping spring or so gap are 0.2mm-0.3mm.
Preferably, the positioning hole bottom is spherical shape.
Preferably, the positioning hole is 12, positioning hole is arranged in pairs, and 6 groups are distributed on piston only.
Preferably, the via is in up big and down small truncated cone-shaped.
Preferably, the piston only is made by the 40Cr for carrying out Nitrizing Treatment, the surface of piston only (1)
Hardness reaches more than 60HRC, effectively nitridation depth 0.3mm~0.5mm.
Preferably, the chamfering of the piston only is 15 °.
In summary, by adopting the above-described technical solution, the beneficial effects of the utility model are：
1st, the utility model motor brake piston, using the positioning hole that multiple certain depths are opened up on piston only,
Make tripping spring be maintained in positioning hole to stretch, it is to avoid its oblique movement, oblique active force is produced to piston only, so as to avoid
Piston only dislocation, causes potential safety hazard, simultaneously, moreover it is possible to reduce piston only and the unnecessary frictional dissipation of housing, improves
The service life of equipment.
2nd, the gap between positioning hole and tripping spring of the present utility model, by testing repeatedly, only keeps in gap
During for 0.2mm-0.3mm, could ensure neither influences the elastic deformation of tripping spring, and tripping spring can be reduced again to piston only
The oblique active force produced, so as to further optimize the structure of brake piston.
3rd, positioning hole bottom of the present utility model is spherical shape, can reduce the abrasion of piston only, further improve equipment
Reliability.
4th, Via Design of the present utility model is up big and down small truncated cone-shaped, and this design can be not increase brake piston whole
In the case of body size, increase the pore wall thickness of positioning hole, prevent it from deforming upon, adapt to elastic force and larger-sized braking
Spring, improves the scope of application of equipment.
5th, piston only of the present utility model is handled using 40Cr materials by surface carburization, it is possible to increase brake piston
Bulk strength.
6th, positioning hole is arranged in pairs by the utility model, and 6 groups are distributed on piston only, can make tripping spring and piston sheet
The cooperation of body is even closer, balance, improves the operation stability of equipment.
7th, piston only is designed as 15 ° of chamfering by the utility model, advantageously in " O " shape sealing ring installation with more
Change, overall structure is further optimized.
Brief description of the drawings
Fig. 1 is the overall structure figure of the utility model motor brake piston；
Fig. 2 is the end view of the utility model motor brake piston；
Fig. 3 is the profile of the utility model motor brake piston；
Marked in figure：1- piston onlies；2- tripping springs；3- seal grooves；4- vias；5- positioning holes.
Embodiment
All features disclosed in this specification, can be with any in addition to mutually exclusive feature and/or step
Mode is combined.
The present invention is elaborated with reference to Fig. 1, Fig. 2 and Fig. 3.
Embodiment 1, a kind of motor brake piston, including piston only 1 and tripping spring 2, the piston only 1 include
For the via 4 installed the seal groove 3 of seal and entered for fuel feeding liquid, the seal groove 3 is located at outside piston only 1
On the circumference of side, the via 4, which is located on the middle part of piston only 1, the piston only 1, to be also evenly equipped with for installing tripping spring 2
Positioning hole 5, the depth of the positioning hole 5 is the half of the length of tripping spring 2.The positioning hole 5 and tripping spring 2 are between left and right
Gap is 0.25mm.The bottom of positioning hole 5 is spherical shape.The positioning hole 5 is 12, and positioning hole 5 is arranged in pairs, and 6 groups uniform
On piston only 1.
When the present embodiment works, piston only 1 is moved under the driving of applied external force toward the direction of tripping spring 2, works as fortune
Move after certain distance, because positioning hole 5 is arranged in pairs, 6 groups are distributed on piston only, tripping spring 2 enters positioning hole 5
Interior, because positioning hole 5 and the gap of tripping spring 2 or so are 0.25mm, it can be while tripping spring elastic deformation not be influenceed
Limit the movement locus of tripping spring 2, it is to avoid it is offset, and oblique active force is produced to piston only 1；At the same time, positioning hole 5
Bottom is spherical shape, can reduce the abrasion of piston only 1.
Embodiment 2 has made following optimization on the basis of embodiment 1：The material of piston only 1 is made by 40Cr, living
Fill in the surface of body 1 and carry out Nitrizing Treatment, case hardness reaches 65HRC, effectively nitridation depth 0.4mm.Due to having carried out at nitriding
Reason, piston only 1 has more preferable bulk strength.
Embodiment 3 has made following optimization on the basis of embodiment 1 or 2：Via 4 is in up big and down small truncated cone-shaped.Via 4
Up big and down small truncated cone-shaped is designed as, this design can increase positioning hole 5 in the case where not increasing brake piston overall dimensions
Pore wall thickness, prevent it from deforming upon, adapt to elastic force and larger-sized tripping spring 2, improve the fitness of equipment.
Embodiment 4 has made following optimization on the basis of embodiment 1：The chamfering of piston only 1 is 15 °.Piston only 1
15 ° of chamfering is designed as, advantageously in the installation and replacing of " O " shape sealing ring.
It is embodiment of the present utility model as described above.The utility model is not limited to above-mentioned embodiment, anyone
The structure change made under enlightenment of the present utility model should be learnt, it is every that there is same or like skill with the utility model
Art scheme, each falls within protection domain of the present utility model.
Claims (7)
1. a kind of motor brake piston, including piston only (1) and tripping spring (2), the piston only (1) include being used for
The via (4) installed the seal groove (3) of seal and entered for fuel feeding liquid, the seal groove (3) is located at piston only
(1) on excircle, the via (4) is located in the middle part of piston only (1), it is characterised in that also uniform on the piston only (1)
There is the positioning hole (5) for installing tripping spring (2), the depth of the positioning hole (5) is more than the one of tripping spring (2) length
Half.
2. motor brake piston as claimed in claim 1, it is characterised in that the positioning hole (5) is left with tripping spring (2)
Right gap is 0.2mm-0.3mm.
3. motor brake piston as claimed in claim 1, it is characterised in that the bottom of the positioning hole (5) is spherical shape.
4. motor brake piston as claimed in claim 1, it is characterised in that the positioning hole (5) is 12, positioning hole
(5) it is arranged in pairs, 6 groups are distributed on piston only (1).
5. the motor brake piston as described in claim 1-4 is any, it is characterised in that the via (4) is in up big and down small
Truncated cone-shaped.
6. the motor brake piston as described in claim 1-4 is any, it is characterised in that the piston only (1) is by carrying out
The 40Cr for crossing Nitrizing Treatment is made, and the case hardness of piston only (1) reaches more than 60HRC, effectively nitridation depth 0.3mm
~0.5mm.
7. motor brake piston as claimed in claim 1, it is characterised in that the chamfering of the piston only (1) is 15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720284369.9U CN206600390U (en) | 2017-03-22 | 2017-03-22 | A kind of motor brake piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720284369.9U CN206600390U (en) | 2017-03-22 | 2017-03-22 | A kind of motor brake piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206600390U true CN206600390U (en) | 2017-10-31 |
Family
ID=60144344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720284369.9U Active CN206600390U (en) | 2017-03-22 | 2017-03-22 | A kind of motor brake piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206600390U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114065A (en) * | 2018-08-22 | 2019-01-01 | 天津大学 | A kind of sealing device for fast press brake piston |
| CN111336199A (en) * | 2018-12-19 | 2020-06-26 | 株式会社斗山 | Brake spring fixing device |
-
2017
- 2017-03-22 CN CN201720284369.9U patent/CN206600390U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114065A (en) * | 2018-08-22 | 2019-01-01 | 天津大学 | A kind of sealing device for fast press brake piston |
| CN109114065B (en) * | 2018-08-22 | 2020-10-27 | 天津大学 | Sealing device for brake piston of quick press |
| CN111336199A (en) * | 2018-12-19 | 2020-06-26 | 株式会社斗山 | Brake spring fixing device |
| CN111336199B (en) * | 2018-12-19 | 2022-01-25 | 股份公司摩拓乐 | Brake spring fixing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 610041 No. second, first building, 3 Gaoxin East Road, Chengdu high tech Zone, Sichuan, China No. A1 Patentee after: Sichuan Wanguan Hydraulic Technology Co., Ltd. Address before: 610041 5, A2 and B1, 2 high tech Industrial Park, 11 Gaoxin Avenue, Chengdu high tech Zone, Sichuan Patentee before: Sichuan Wanguan Hydraulic Technology Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190830 Address after: 610100 South Fourth Road 228, Chengdu Economic and Technological Development Zone (Longquanyi District), Sichuan Province Patentee after: Sichuan Kun Cheng run Technology Co., Ltd. Address before: High tech Zone Chengdu city Sichuan province 610041 Gaopeng Road No. 3 building first floor second No. A1 Patentee before: Sichuan Wanguan Hydraulic Technology Co., Ltd. |