CN209990730U - Axle type enclasping device - Google Patents
Axle type enclasping device Download PDFInfo
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- CN209990730U CN209990730U CN201821930084.9U CN201821930084U CN209990730U CN 209990730 U CN209990730 U CN 209990730U CN 201821930084 U CN201821930084 U CN 201821930084U CN 209990730 U CN209990730 U CN 209990730U
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- axle type
- bush
- casing
- bushing
- enclasping device
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Abstract
The utility model discloses an axle type cohesion device, establish at the outside casing of bush and fix the shield at housing end including bush, cover, the logical groove has been seted up to the bush, and the external fixation of bush has sealed wall, forms the medium cavity between sealed wall and the casing, has seted up in the casing and has imported and exported and the gas vent with the medium of medium cavity intercommunication, is provided with rolling element and holding screw in the gas vent, holding screw's tip butt rolling element. Axle type cohesion device, its simple structure need not to occupy great space, and hold axle type work piece tightly through medium pressure, convenient to use, and the cost is lower.
Description
Technical Field
The utility model belongs to the technical field of automobile auxiliary machinery equipment makes, concretely relates to axle type cohesion device.
Background
The shaft type holding device is widely used for locking moving parts of mechanical systems, such as auxiliary supports, rotating shafts or pins, guide posts, piston rods, working tables and the like. The shaft holding device mainly holds the shaft workpiece tightly by means of friction force.
The shaft type tightly holding device imported from foreign countries is mostly adopted in the industry of the automobile auxiliary machine at present, and the shaft type tightly holding device adopts an air source to lock a shaft type workpiece, namely, the shaft type workpiece is locked through pneumatic locking. The pneumatic locking device occupies a large space and is expensive, so that the use cost is relatively high; in addition, the pressure of the air source is low, so that the holding force generated by the axle holding device is limited; meanwhile, the opening speed of the locking is influenced by the area ratio of the air source control valve, and the opening speed is slow.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an axle type cohesion device is provided, solved prior art well axle type cohesion device occupation space big, use cost high and cohesion low technical problem.
For solving the technical problem, the utility model discloses a technical scheme: the utility model provides an axle type cohesion device which characterized in that: establish at the outside bush of axle type work piece, the cover and establish the outside casing of bush and fix the shield at the casing tip including the cover, logical groove has been seted up to the bush, is located the inside of casing the external fixation of bush has the sealed wall, form the medium cavity between sealed wall and the casing, set up in the casing and import and export and the gas vent with the medium of medium cavity intercommunication, be provided with rolling element and holding screw in the gas vent, holding screw's tip butt rolling element.
Preferably, both ends of the bush are provided with bush flanges, and the bush flanges abut against the inside of the housing.
Preferably, a sealing wall flange is provided on the outside of the sealing wall near both ends of the sealing wall, and the sealing wall flange abuts against the inside of the housing.
Preferably, a sealing gasket is arranged between the sealing wall flange and the bushing flange.
Preferably, a plurality of bushing convex strips are axially arranged on the outer portion of the bushing.
Preferably, a sealing wall convex strip is arranged outside the sealing wall corresponding to the position of the lining convex strip.
Preferably, an adjusting pad is arranged between the dustproof cover and the end part of the shell.
Preferably, a dustproof ring is arranged in the dustproof cover and is in contact with the shaft workpiece.
Preferably, the through groove is a spiral groove.
Preferably, the bushing is made of tin-phosphor bronze.
The utility model has the advantages that: the utility model discloses an axle type cohesion device, establish at the outside casing of bush and fix the shield at housing end including bush, cover, the logical groove has been seted up to the bush, and the external fixation of bush has sealed wall, forms the medium cavity between sealed wall and the casing, has seted up in the casing and has imported and exported and the gas vent with the medium of medium cavity intercommunication, is provided with rolling element and holding screw in the gas vent, holding screw's tip butt rolling element. Axle type cohesion device, when needs cohesion axle type work piece, to the inside input medium of medium cavity, after medium drives out the medium cavity with the inside gas of medium cavity, holding screw locking rolling element, then further to the inside input medium of medium cavity, axle type work piece is held tightly to the bush under medium pressure. Axle type cohesion device, its simple structure need not to occupy great space, and hold axle type work piece tightly through medium pressure, convenient to use, and the cost is lower.
Drawings
FIG. 1 is a cross-sectional view of a shaft hugging device;
FIG. 2 is a schematic view of the bushing and the seal wall;
the reference numbers in the figure, 1-bush, 1.1-bush flange, 1.2-through groove; 2-shell, 2.1-medium inlet and outlet, 2.2-exhaust port; 3, a dustproof cover; 4-sealing wall, 4.1-sealing wall flange, 4.2-sealing wall convex strip; 5-a sealing gasket; 6-a dielectric cavity; 7-rolling elements; 8-set screws; 9-a screw; 10-adjusting the pad; 11-a dust ring; 12-shaft workpiece.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1:
an axle type enclasping device is shown in figures 1 and 2 and comprises a lining 1 sleeved outside an axle type workpiece, a shell 2 sleeved outside the lining, and a dust cover 3 fixed at the end of the shell. In this embodiment, the bushing 1 is a cylindrical body, the interior of the bushing is hollow, and bushing flanges 1.1 are arranged at two ends of the bushing 1, and the bushing flanges 1.1 are abutted to the interior of the housing 2. In order to facilitate the deformation of the bushing after the bushing is subjected to medium pressure and generate holding force on shaft workpieces, the axial direction of the bushing 1 is provided with a through groove 1.2. The through groove can be a spiral groove if a certain torque is to be overcome. In this embodiment, the bushing 1 is made of tin-phosphor bronze with high strength, high elasticity and corrosion resistance. A sealing wall 4 is fixed to the outside of the inner liner 1 of the housing. The sealing wall 4 is made of plastic material. Specifically, the sealing wall 4 is also of a cylindrical structure, the inside of the sealing wall is hollow, sealing wall flanges 4.1 are arranged on the outer portions of the sealing wall 4 close to two ends of the sealing wall, and the sealing wall flanges 4.1 are abutted with the inside of the shell 2. It should be noted that the seal wall flange coincides in height with the liner flange. In this embodiment, in order to ensure the sealing performance between the housing 2 and the sealing wall 4 and the bushing 1, a sealing gasket 5 is provided between the sealing wall flange 4.1 and the bushing flange 1.1. A medium cavity 6 is formed between the sealing wall 4 and the shell 2, a medium inlet and outlet 2.1 and an exhaust port 2.2 which are communicated with the medium cavity are arranged in the shell, a rolling body 7 and a set screw 8 are arranged in the exhaust port 2.2, and the end part of the set screw 8 is abutted against the rolling body 7. In this embodiment, the medium inlet and outlet 2.1 in the housing is communicated with external hydraulic oil. When the shaft workpiece needs to be held tightly, the load working condition of the shaft workpiece is firstly determined, the holding force is determined, and then the pressure of hydraulic oil is calculated. Open outside hydraulic oil flow valve, the hydraulic oil of low pressure flows into the medium cavity, and the inside gas of medium cavity is discharged from the gas vent this moment, and when hydraulic oil rose to the gas vent, the inside gas of medium cavity was emptied, screwed up set screw this moment, and set screw's tip butt rolling element for the gas vent is stopped up by the rolling element, further improves the oil pressure of hydraulic oil, stops to input hydraulic oil when the oil pressure of medium cavity inside reached the oil pressure of calculation. The oil pressure in the medium can be displayed by a pointer type pressure gauge at the outlet of an external hydraulic oil circulation valve or read by an external digital display pressure switch.
In order to prevent relative movement between the hub and the sealing wall, in this embodiment the hub 1 is provided with hub ribs (not visible in the drawings) axially on the outside. The bushing ribs abut the seal wall 4, preventing the seal wall from rotating along the bushing. In order to prevent the sealing wall from deforming and tearing after being subjected to high-pressure medium, sealing wall convex strips 4.2 are arranged outside the sealing wall 4 corresponding to the positions of the liner convex strips. The sealing wall ribs can play a role in reinforcing the pressure resistance.
In this embodiment, the inner side of the dust cap 3 extends into the housing 2, and the end surface of the inner side of the dust cap abuts against the end surface of the bush 1. The dust cover 3 is fixed to the housing 2 by screws 9. An adjusting pad 10 is arranged between the dust cover 3 and the end of the housing 2. The dustproof cover 3 is provided with a dustproof ring 11, and the dustproof ring 11 is in contact with the shaft workpiece 12.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides an axle type cohesion device which characterized in that: establish at the outside bush of axle type work piece, the cover and establish the outside casing of bush and fix the shield at the casing tip including the cover, logical groove has been seted up to the bush, is located the inside of casing the external fixation of bush has the sealed wall, form the medium cavity between sealed wall and the casing, set up in the casing and import and export and the gas vent with the medium of medium cavity intercommunication, be provided with rolling element and holding screw in the gas vent, holding screw's tip butt rolling element.
2. The axle type enclasping device according to claim 1, characterized in that: and two ends of the bushing are provided with bushing flanges, and the bushing flanges are abutted to the inside of the shell.
3. The axle type enclasping device according to claim 2, characterized in that: and sealing wall flanges are arranged outside the sealing walls close to the two ends of the sealing walls, and are abutted against the inside of the shell.
4. The axle type enclasping device according to claim 3, characterized in that: and a sealing gasket is arranged between the sealing wall flange and the bushing flange.
5. The axle type enclasping device according to claim 1, characterized in that: and a plurality of bush convex strips are axially arranged on the outer part of the bush.
6. The axle type enclasping device according to claim 5, characterized in that: and sealing wall convex strips are arranged outside the sealing wall at the positions corresponding to the positions of the bush convex strips.
7. The axle type enclasping device according to claim 1, characterized in that: an adjusting pad is arranged between the dustproof cover and the end part of the shell.
8. The axle type enclasping device according to claim 1, characterized in that: and a dustproof ring is arranged in the dustproof cover and is in contact with the shaft workpiece.
9. The axle type enclasping device according to claim 1, characterized in that: the through groove is a spiral groove.
10. The axle type enclasping device according to claim 1, characterized in that: the bushing is made of tin-phosphor bronze.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821930084.9U CN209990730U (en) | 2018-11-21 | 2018-11-21 | Axle type enclasping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821930084.9U CN209990730U (en) | 2018-11-21 | 2018-11-21 | Axle type enclasping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209990730U true CN209990730U (en) | 2020-01-24 |
Family
ID=69286920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821930084.9U Active CN209990730U (en) | 2018-11-21 | 2018-11-21 | Axle type enclasping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209990730U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508521A (en) * | 2022-03-04 | 2022-05-17 | 烟台星辉航空液压有限公司 | Locking device for holding shafts tightly at any position |
-
2018
- 2018-11-21 CN CN201821930084.9U patent/CN209990730U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508521A (en) * | 2022-03-04 | 2022-05-17 | 烟台星辉航空液压有限公司 | Locking device for holding shafts tightly at any position |
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