CN218775700U - Static pressure type clamping jaw - Google Patents
Static pressure type clamping jaw Download PDFInfo
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- CN218775700U CN218775700U CN202223059407.0U CN202223059407U CN218775700U CN 218775700 U CN218775700 U CN 218775700U CN 202223059407 U CN202223059407 U CN 202223059407U CN 218775700 U CN218775700 U CN 218775700U
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- piston
- claw
- static pressure
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- claws
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- 230000003068 static effect Effects 0.000 title claims abstract description 24
- 210000000078 claw Anatomy 0.000 claims abstract description 68
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 6
- 239000003921 oil Substances 0.000 claims description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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Abstract
The utility model discloses a static pressure type claw, which comprises a claw body and a piston type claw; the claw body is provided with a piston cavity for mounting the piston type claw; the number of the piston-type tooth claws is at least three, the claw body is provided with piston cavities matched with the number of the piston-type tooth claws, and the piston cavities at the lower ends of the piston-type tooth claws are mutually communicated and are internally provided with hydraulic oil; the upper ends of the piston-type gear claws extend out of the claw body, and the piston-type gear claws clamp the vehicle wheel pair through a static pressure transmission principle. The utility model discloses simple structure, be convenient for change, and economical and durable.
Description
Technical Field
The utility model relates to a numerical control wheel lathe technical field, concretely relates to numerical control wheel lathe static pressure formula jack catch that is used for processing and repairs various locomotive, passenger, freight train rim and tread and carries out the wheel pair chucking.
Background
At present, railways in China are built and continuously expanded, the user demand of numerical control wheel lathes of our company is increasing day by day, but our company adopts the combination form of traditional arc-shaped clamping jaws and jaw bodies to clamp on a wheel set clamping structure all the time, although the clamping jaws are practical, the technology is also formed, but the structure is more complex, the part processing is also more difficult, and the problems of clamping damage to wheel set rims and treads, wheel set deformation and the like are easily caused. Therefore, in order to solve the problems and meet the market demand, the static pressure type clamping jaw is simple in structure, convenient to replace, economical and durable.
SUMMERY OF THE UTILITY MODEL
The utility model provides a static pressure formula jack catch aims at one of the technical problem who solves: the existing wheel set clamping structure is complex, parts are difficult to machine, and the technical problems of wheel set rim and tread clamping damage and wheel set deformation are easily caused.
In view of the above problems in the prior art, according to the present invention, the present invention adopts the following technical solutions:
a static pressure jaw, comprising:
the claw body is provided with a piston cavity for mounting a piston type claw;
the number of the piston-type tooth claws is at least three, the claw body is provided with piston cavities matched with the number of the piston-type tooth claws, and the piston cavities at the lower ends of the piston-type tooth claws are mutually communicated and are internally provided with hydraulic oil; the upper ends of the piston-type gear claws extend out of the claw body, and the piston-type gear claws clamp the vehicle wheel pair through a static pressure transmission principle.
In order to better realize the utility model discloses, further technical scheme is:
further, still include:
and the cover plate is arranged above the piston cavity, and the upper end of the piston-type tooth claw penetrates through the cover plate.
Further, the cover plate is fixedly connected with the claw body through a countersunk screw.
Furthermore, an end face sealing ring is arranged between the cover plate and the claw body.
Furthermore, a framework sealing ring used for sealing with the inner wall of the piston cavity is arranged on the piston type tooth claw.
Further, an oil plug is arranged on the piston cavity.
Compared with the prior art, one of the beneficial effects of the utility model is that:
the static pressure type claw of the utility model utilizes the static pressure transmission principle, one of the tooth claws is always in an extending state, when the tooth claw is pressed, the tooth claw is pressed in, and the other one or two tooth claws clamp a workpiece at proper points within the stroke range; compared with the device for clamping the wheel set on the existing wheel lathe, the device is simpler in structure, easier to machine parts, and basically does not cause clamping damage to the wheel set rim and the tread and influence on wheel set deformation.
Drawings
For a clearer explanation of the embodiments or technical solutions in the prior art of the present application, the drawings used in the description of the embodiments or prior art will be briefly described below, it is obvious that the drawings in the following description are only references to some embodiments in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural view of a static pressure type jaw according to an embodiment of the present invention.
Fig. 2 isbase:Sub>A schematic sectional view taken along linebase:Sub>A-base:Sub>A of fig. 1.
Wherein, the reference numbers correspond to the names of the figures:
1-piston type tooth claw, 2-cover plate, 3-claw body, 4-oil plug, 5-countersunk head screw, 6-end face seal ring and 7-skeleton seal ring.
Detailed Description
The present invention will be described in further detail with reference to examples, but the present invention is not limited thereto.
The structure of the wheel lathe chuck is large in limitation and inconvenient to connect with a hydraulic part, so that the structure adopts a static pressure mode. In order to reduce the processing cost, the traditional claw telescopic structure is adopted, and the structure of the claw body part is optimally designed. Specifically, the method comprises the following steps:
referring to fig. 1 and 2, the static pressure type claw comprises a claw body 3 and a piston type tooth claw 1; a piston cavity for mounting the piston type toothed claw 1 is arranged on the claw body 3; the number of the piston-type tooth claws 1 is at least three, the claw body 3 is provided with piston cavities matched with the number of the piston-type tooth claws 1, the piston cavities at the lower ends of the piston-type tooth claws 1 are communicated with each other, and hydraulic oil is arranged in the piston cavities; the upper end of each piston type tooth claw 1 extends out of the claw body 3, and each piston type tooth claw 1 clamps the vehicle wheel pair through a static pressure transmission principle.
The cover plate 2 is arranged above the piston cavity, and the upper end of the piston-type claw 1 penetrates through the cover plate 2.
The cover plate 2 can be fixedly connected with the claw body 3 through a countersunk head screw 5. An end face seal ring 6 can be arranged between the cover plate 2 and the claw body 3.
And a framework sealing ring 7 used for sealing the inner wall of the piston cavity is arranged on the piston type tooth claw 1.
As further shown in fig. 2, an oil plug 4 is disposed on the piston cavity.
The working principle is as follows:
by using the static pressure transmission principle, one of the tooth claws is always in an extending state, when the tooth claw is pressed in, the other tooth claw or the two tooth claws clamp the workpiece at a proper point in a stroke range.
When using, when the wheel set passes through material feeding unit propelling movement to chuck central height, the jack catch axial is stretched out earlier, then the rotatory selected support point, if a tooth claw that stretches out is pressed into the back, then according to static pressure transmission principle another one or two tooth claws can stretch out and carry out the chucking to the wheel set rim. The pressure is adjusted by a pressure valve during clamping, in order to support the workpiece tightly, one or two extending tooth claws can extend out in different lengths along with different applied pressures, and claw teeth on the end surfaces of the tooth claws are used for preventing the wheel pair from slipping during rotation.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
Reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described in general terms in this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure and claims of this application. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (6)
1. A static pressure jaw, comprising:
the claw body (3) is provided with a piston cavity for mounting the piston type claw (1);
the number of the piston type gear claws (1) is at least three, the claw body (3) is provided with piston cavities matched with the number of the piston type gear claws (1), the piston cavities at the lower ends of the piston type gear claws (1) are mutually communicated, and hydraulic oil is arranged in the piston cavities; the upper end of each piston-type claw (1) extends out of the claw body (3), and each piston-type claw (1) clamps the vehicle wheel pair through a static pressure transmission principle.
2. The static pressure jaw according to claim 1, further comprising:
and the cover plate (2) is arranged above the piston cavity, and the upper end of the piston type tooth claw (1) penetrates through the cover plate (2).
3. Static pressure jaw according to claim 2, characterised in that the cover plate (2) is fixedly connected to the jaw body (3) by means of a countersunk screw (5).
4. Static pressure jaw according to claim 2 or 3, characterised in that a face seal (6) is arranged between the cover plate (2) and the jaw body (3).
5. Static pressure jaw according to claim 1, characterised in that the piston-type jaw (1) is provided with a skeleton seal (7) for sealing against the inner wall of the piston cavity.
6. Static pressure jaw according to claim 1, characterised in that the piston chamber is provided with an oil plug (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223059407.0U CN218775700U (en) | 2022-11-17 | 2022-11-17 | Static pressure type clamping jaw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223059407.0U CN218775700U (en) | 2022-11-17 | 2022-11-17 | Static pressure type clamping jaw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218775700U true CN218775700U (en) | 2023-03-31 |
Family
ID=85715762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223059407.0U Active CN218775700U (en) | 2022-11-17 | 2022-11-17 | Static pressure type clamping jaw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218775700U (en) |
-
2022
- 2022-11-17 CN CN202223059407.0U patent/CN218775700U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240604 Address after: 741024 No. 7 Runtian Road, Shetang Industrial Park, Maiji District, Tianshui City, Gansu Province Patentee after: Tianshui Xinghuo Qingzhong Machine Tool Co.,Ltd. Country or region after: China Address before: 810000 No. 24, North Section of Jinger Road, Biological Park, Xining City, Qinghai Province Patentee before: Qinghai Qingzhong Machine Tool Manufacturing Co.,Ltd. Country or region before: China |