CN216781620U - Hydraulic nut for locking cutting disc - Google Patents
Hydraulic nut for locking cutting disc Download PDFInfo
- Publication number
- CN216781620U CN216781620U CN202122426143.7U CN202122426143U CN216781620U CN 216781620 U CN216781620 U CN 216781620U CN 202122426143 U CN202122426143 U CN 202122426143U CN 216781620 U CN216781620 U CN 216781620U
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- Prior art keywords
- hydraulic nut
- wall
- piston cylinder
- annular piston
- oil injection
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- Expired - Fee Related
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- 238000002347 injection Methods 0.000 claims abstract description 28
- 239000007924 injection Substances 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 7
- 239000003921 oil Substances 0.000 description 35
- 239000010720 hydraulic oil Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a hydraulic nut for locking a circular cutter, which belongs to the technical field of hydraulic nuts and comprises a hydraulic nut body, wherein the middle part of the hydraulic nut body is provided with an integrally formed middle part protruding outwards; the side wall of the middle part is inwards provided with an oil injection main path, and two groups of oil injection branch paths respectively extending to two groups of oil cavities are arranged on the oil injection main path.
Description
Technical Field
The utility model relates to the technical field of hydraulic nuts, in particular to a hydraulic nut for locking a circular cutter.
Background
The hydraulic nut is used for a bolt which needs to be frequently disassembled and assembled; pre-tightening the oversized bolt; locking large-sized workpieces and the like. And can be used as a hydraulic interference connection disassembling tool. The hydraulic nut is used, so that the working efficiency can be improved, and the principle of the hydraulic nut is that hydraulic oil is input into the nut by the high-pressure oil pump to generate force for pushing the piston, so that the hydraulic nut is required to be mounted or dismounted without labor.
After the disc cutter is locked by the cooperation of the hydraulic nut and the bolt, the bolt is required to be in threaded connection and cooperation with other external components, and the existing hydraulic nut can only lock the circular cutter disc towards one side and cannot lock other components on the other side.
Based on the hydraulic nut, the utility model designs the hydraulic nut for locking the cutting disc so as to solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a hydraulic nut for locking a disc cutter, which aims to solve the problem that the existing hydraulic nut in the background technology can only lock a disc cutter on one side and can not lock other parts on the other side.
In order to achieve the purpose, the utility model provides the following technical scheme: a hydraulic nut for locking a disc cutter comprises a hydraulic nut body, wherein the middle part of the hydraulic nut body is provided with an integrally formed middle part protruding outwards, two ends of the hydraulic nut body are respectively provided with an annular piston cylinder body, an oil cavity of a closed-loop structure is formed between the inner end surface and the middle end surface of the annular piston cylinder body, and the inner wall of the annular piston cylinder body is in sliding liquid seal fit with the outer wall and the middle part outer wall of the hydraulic nut body along the axis direction of the hydraulic nut body; and the side wall of the middle part is inwards provided with an oil injection main path, and two groups of oil injection branch paths respectively extending to the two groups of oil cavities are arranged on the oil injection main path.
Preferably, a first sealing ring is arranged between the inner wall of the annular piston cylinder body and the outer wall of the end head of the hydraulic nut body, and a second sealing ring is arranged between the inner wall of the annular piston cylinder body and the outer wall of the middle part of the annular piston cylinder body.
Preferably, the side wall of the middle part is connected with a screw pin, and the screw pin is rotated to block or communicate the oil injection branches corresponding to one another.
Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the two ends of the hydraulic nut body are respectively provided with the annular piston cylinder bodies, one group of the annular piston cylinder bodies is used for clamping the circular disc cutter, and the other group of the annular piston cylinder bodies moves in the reverse direction and is used for clamping other components.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of a hydraulic nut body according to the present invention.
1. A hydraulic nut body; 11. an intermediate portion; 2. an annular piston cylinder; 21. an oil chamber; 3. a first seal ring; 4. a second seal ring; 5. oiling a main road; 6. an oil injection branch; 7. and (4) screwing pins.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
A hydraulic nut for locking a disc cutter comprises a hydraulic nut body 1, wherein the middle part of the hydraulic nut body 1 is provided with an integrally formed middle part 11 protruding outwards, two ends of the hydraulic nut body 1 are respectively provided with an annular piston cylinder body 2, an oil cavity 21 of a closed-loop structure is formed between the end surface of the inner end of the annular piston cylinder body 2 and the end surface of the middle part 11, and the inner wall of the annular piston cylinder body 2 is in sliding liquid seal fit with the outer wall of the hydraulic nut body 1 and the outer wall of the middle part 11 along the axis direction of the hydraulic nut body 1; the side wall of the middle part 11 is provided with an oil injection main path 5 inwards, and two groups of oil injection branch paths 6 respectively extending to the two groups of oil cavities 21 are arranged on the oil injection main path 5.
Further, a first sealing ring 3 is arranged between the inner wall of the annular piston cylinder body 2 and the outer wall of the end of the hydraulic nut body 1, the liquid sealing matching effect is further improved through the first sealing ring 3, a second sealing ring 4 is arranged between the inner wall of the annular piston cylinder body 2 and the outer wall of the middle portion 11, and the liquid sealing matching effect is further improved through the second sealing ring 4.
Further, a screw pin 7 is connected to a side wall of the middle portion 11, and the screw pin 7 is rotated to block or communicate the oil filling branches 6 corresponding to one another.
One embodiment of the utility model:
the internal thread of the hydraulic nut body 1 is in threaded connection and matching with the external thread of the stud, an outwardly-convex middle part 11 is arranged between two ends of the outer wall of the hydraulic nut body 1, the appearance of the middle part 11 and the appearance of two ends of the hydraulic nut body 1 are both of non-circular structures, so that the annular piston cylinder body 2 cannot rotate relative to the hydraulic nut body 1, the inner side wall of the annular piston cylinder body 2 is in sliding liquid seal fit with the outer wall of the end head of the hydraulic nut body 1, the inner side wall of the annular piston cylinder body 2 is in sliding liquid seal fit with the outer wall of the middle part 11 in the middle of the hydraulic nut body 1, and an oil cavity 21 is formed between the inner end surface of the annular piston cylinder body 2 and the end surface of the middle part 11;
the outer side wall of the middle part 11 is inwards provided with an oil injection main path 5, one end of the oil injection main path 5, which is positioned on the outer side wall of the middle part 11, is positioned between the two groups of annular piston cylinder bodies 2, the oil injection main path 5 is communicated with two groups of oil injection branches 6, and the other ends of the two groups of oil injection branches 6 respectively extend to the two groups of oil cavities 21;
the hydraulic oil flows into the oil chamber 21 through the main oil injection path 5 and the branch oil injection path 6, and the hydraulic oil continuously flows into the oil chamber 21 to increase the space of the oil chamber 21, so that the annular piston cylinder body 2 is pushed to move along the axial direction of the hydraulic nut body 1.
When the double-screw bolt clamping device is used, the hydraulic nut body 1 and other external components are in threaded connection with the double-screw bolt, the hydraulic nut body 1 is located between the disc cutter and the other external components, then, external hydraulic oil flows into the two sets of oil cavities 21 through the main oil injection path 5 and the branch oil injection path 6, so that the two sets of annular piston cylinder bodies 2 are pushed to move in the reverse direction, one set of annular piston cylinder bodies 2 are used for clamping the disc cutter, the other set of annular piston cylinder bodies 2 are used for clamping other external components, and therefore the purpose that one hydraulic nut is used for clamping the components on two opposite sides is achieved.
The outer side wall of the middle part 11 is in threaded connection with two groups of screw pins 7, the two groups of screw pins 7 are positioned between the two groups of annular piston cylinders 2, the screw pins 7 are in liquid-tight fit with the middle part 11, the screw pins 7 are driven to rotate by an external tool, one ends of the screw pins 7 extend into the oil injection branches 6, the corresponding oil injection branches 6 are blocked by the screw pins 7, and the screw pins 7 can also be driven to be separated from the corresponding oil injection branches 6, so that the corresponding oil injection branches 6 are communicated; the oil filling branch 6 is controlled to be switched on and off to control the movement of the corresponding annular piston cylinder body 2, so that the two groups of annular piston cylinder bodies 2 can be mutually independent.
The electrical equipment is connected with an external power supply through an external control switch.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims (3)
1. The utility model provides a hydraulic nut is used in locking of cutting disc, includes hydraulic nut body (1), its characterized in that: the hydraulic nut comprises a hydraulic nut body (1), wherein an integrally formed middle part (11) protruding outwards is arranged in the middle of the hydraulic nut body (1), annular piston cylinder bodies (2) are arranged at two ends of the hydraulic nut body (1), an oil cavity (21) of a closed-loop structure is formed between the inner end face of each annular piston cylinder body (2) and the end face of the middle part (11), and the inner wall of each annular piston cylinder body (2) is in sliding liquid seal fit with the outer wall of the hydraulic nut body (1) and the outer wall of the middle part (11) along the axial direction of the hydraulic nut body (1); an oil injection main path (5) is formed in the side wall of the middle portion (11) inwards, and two oil injection branch paths (6) extending to the two oil chambers (21) are arranged on the oil injection main path (5).
2. The hydraulic nut for locking the disc cutter as claimed in claim 1, wherein: a first sealing ring (3) is arranged between the inner wall of the annular piston cylinder body (2) and the outer wall of the end of the hydraulic nut body (1), and a second sealing ring (4) is arranged between the inner wall of the annular piston cylinder body (2) and the outer wall of the middle part (11).
3. The hydraulic nut for locking the disc cutter as claimed in claim 1, wherein: the side wall of the middle part (11) is connected with a screw pin (7), and the screw pin (7) is rotated to block or communicate the oil injection branches (6) which correspond to one another one by one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122426143.7U CN216781620U (en) | 2021-10-09 | 2021-10-09 | Hydraulic nut for locking cutting disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122426143.7U CN216781620U (en) | 2021-10-09 | 2021-10-09 | Hydraulic nut for locking cutting disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216781620U true CN216781620U (en) | 2022-06-21 |
Family
ID=81998955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122426143.7U Expired - Fee Related CN216781620U (en) | 2021-10-09 | 2021-10-09 | Hydraulic nut for locking cutting disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216781620U (en) |
-
2021
- 2021-10-09 CN CN202122426143.7U patent/CN216781620U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220621 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |