CN201221573Y - Coupling - Google Patents
Coupling Download PDFInfo
- Publication number
- CN201221573Y CN201221573Y CNU2008200871816U CN200820087181U CN201221573Y CN 201221573 Y CN201221573 Y CN 201221573Y CN U2008200871816 U CNU2008200871816 U CN U2008200871816U CN 200820087181 U CN200820087181 U CN 200820087181U CN 201221573 Y CN201221573 Y CN 201221573Y
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- China
- Prior art keywords
- medium
- coupling
- closed cavity
- piston
- axis hole
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Abstract
The utility model discloses a shaft coupling, comprising a shaft coupling body which is provided with a shaft hole for placing the shaft. The shaft coupling is characterized in that the shaft coupling body also comprises at least a closed cavity and at least a pressure device. For the shaft coupling body, a thin-walled structure is formed between the closed cavity and the shaft hole. The closed cavity is filled with incompressible medium. The pressure device is communicated with the medium. When the medium is pressed, the peripheric internal wall of the shaft hole can be deformed along the radial direction, thus changing normal diameter into a smaller diameter. When the pressure is released, the peripheric internal wall of the shaft hole can retract to the normal diameter. The technical proposal adopts hydraulic expansion principle, and the stresses of the hydraulic pressure at all directions are equal, ensuring that the diameter of the shaft hole is changed evenly, so that two connected shafts can realize coaxial coupling quickly and precisely. The utility model has the advantages of convenient installation, precise shaft coupling, reliable usage, simple structure and the like.
Description
Technical field
The utility model is applied to field of mechanical technique, relates in particular to a kind of coupling.
Background technique
Existing coupling adopts links such as pin, key or bolt to realize being connected and fixed and transmitting torque between axle and coupling, two half-couplings mostly, its torque transmitted of such structure is subjected to the restriction of the performance of link own, and it is all cumbersome how to guarantee that when mounted two axial lines overlaps etc. fully.
Summary of the invention
In order to solve above-mentioned technical problem, the purpose of this utility model provide a kind of easy for installation, use coupling reliable, simple in structure.
To achieve the above object, the utility model has adopted following technological scheme:
A kind of coupling comprises the coupling body, and this body has the axis hole that is used to place axle, it is characterized in that, described coupling body also comprises at least one closed cavity, and the coupling body forms thin walled structures between closed cavity and axis hole, is full of incompressible medium in the closed cavity; At least one pressurization device, pressurization device is communicated with described medium, and this medium is exerted pressure can be made axis hole circumferential inner wall radial deformation and change to a less diameter by normal diameter, can make the axis hole circumferential inner wall retract to normal diameter to this medium decompression.
As preferably, above-mentioned coupling body comprises the interior cover and the overcoat of hot jacket, forms closed cavity between cover and the overcoat in described, puts in described to be formed with the circumference thin walled structures.
Above-mentioned pressurization device comprises a medium holes that is communicated with closed cavity, is provided with piston mobile in the described medium holes, seals between piston and the medium holes to contact, and a side of described piston is above-mentioned medium, and described piston opposite side is connected with the piston pushing mechanism.
Above-mentioned overcoat outermost heat is with flange, and the above-mentioned medium holes that is communicated with closed cavity is set on the flange.
As preferably, be evenly equipped with three above-mentioned medium holes on the above-mentioned flange circumference.
Above-mentioned piston pushing mechanism is an augering screw that is threaded with medium holes, and the augering screw front end offsets with piston and contacts.As preferably, above-mentioned augering screw is a screw; Above-mentioned medium is a hydraulic oil.
The utility model has been owing to adopted above technological scheme, thin walled structures is set and is full of the closed cavity of incompressible medium at the inwall of coupling axis hole; Shaft coupling is fixedly the time, and by pressurization device this medium being exerted pressure can make axis hole circumferential inner wall radial deformation and change to a less diameter by normal diameter, and coupling just can be connected and fixed two axles putting into axis hole like this; When diaxon separates, can make the axis hole circumferential inner wall retract to normal diameter to this medium decompression, two axles just can separate.Because be to adopt the hydraulic buckling principle, the stressed identical shaft hole diameter that makes of hydraulic pressure all directions evenly changes, thereby can be with the not only fast but also accurate coaxial connection of two axles that connects, have easy for installation, shaft coupling accurately, use reliable, advantages of simple structure and simple.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the left view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is made a detailed explanation.
Embodiment 1:
A kind of coupling as shown in Figure 1 and Figure 2, comprise a coupling body and a pressurization device, this body has the axis hole 8 that is used to place two axles, described coupling body comprises the interior cover 3 and the overcoat 4 of hot jacket, form closed cavity 2 in described between cover 3 and the overcoat 4, be formed with the circumference thin walled structures on the cover 3 in described, be full of incompressible medium in the closed cavity 2; Described pressurization device comprises a medium holes that is communicated with closed cavity 2, be provided with piston mobile 5 in the described medium holes, piston 5 is provided with to seal between seal ring 6 and the medium holes and contacts, and a side of described piston 5 is above-mentioned medium, and described piston 5 opposite sides and screw 7 offset; Described overcoat 4 outermost heats are with flange 1, and the above-mentioned medium holes that is communicated with closed cavity 2 is set on the flange 1, are evenly equipped with three above-mentioned medium holes on above-mentioned flange 1 circumference, and in the present embodiment, medium is a hydraulic oil.
Coupling adopts three external member hot jacket composite structures, and not only convenient the manufacturing also saved material, and wherein, interior cover adopts the 20# steel, and the thickness of its thin-walled can be 1-2.5mm, and axis hole deformation diameter is controlled at about 0.1mm.During use, earlier two axles are inserted in the axis holes, the gap control of axle and axis hole is in 10, rotation screw promotion piston moves down exerts pressure to hydraulic oil, and shaft hole diameter is diminished with two axle jam-packed shaft couplings, during separation, unclamp and only need unclamp one of them screw and get final product easy-to-operat.
Claims (8)
1. a coupling comprises the coupling body, and this body has the axis hole that is used to place axle, it is characterized in that described coupling body also comprises
At least one closed cavity, the coupling body forms thin walled structures between closed cavity and axis hole, be full of incompressible medium in the closed cavity;
At least one pressurization device, pressurization device is communicated with described medium, and this medium is exerted pressure can be made axis hole circumferential inner wall radial deformation and change to a less diameter by normal diameter, can make the axis hole circumferential inner wall retract to normal diameter to this medium decompression.
2. a kind of coupling according to claim 1, it is characterized in that, described coupling body comprises the interior cover (3) and the overcoat (4) of hot jacket, forms closed cavity (2) between described interior cover (3) and the overcoat (4), is formed with the circumference thin walled structures on the described interior cover (3).
3. a kind of coupling according to claim 2, it is characterized in that, described pressurization device comprises a medium holes that is communicated with closed cavity, be provided with piston mobile (5) in the described medium holes, seal between piston (5) and the medium holes and contact, one side of described piston (5) is above-mentioned medium, and described piston (5) opposite side is connected with the piston pushing mechanism.
4. a kind of coupling according to claim 3 is characterized in that, described overcoat (4) outermost heat is with flange (1), and the above-mentioned medium holes that is communicated with closed cavity (2) is set on the flange (1).
5. a kind of coupling according to claim 4 is characterized in that, is evenly equipped with three above-mentioned medium holes on described flange (1) circumference.
6. according to claim 3 or 4 or 5 described a kind of coupling, it is characterized in that described piston pushing mechanism is an augering screw that is threaded with medium holes, the augering screw front end offsets with piston (5) and contacts.
7. a kind of coupling according to claim 6 is characterized in that, described augering screw is screw (7).
8. a kind of coupling according to claim 1 is characterized in that described medium is a hydraulic oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200871816U CN201221573Y (en) | 2008-05-23 | 2008-05-23 | Coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200871816U CN201221573Y (en) | 2008-05-23 | 2008-05-23 | Coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201221573Y true CN201221573Y (en) | 2009-04-15 |
Family
ID=40575081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200871816U Expired - Fee Related CN201221573Y (en) | 2008-05-23 | 2008-05-23 | Coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201221573Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115043A (en) * | 2013-02-28 | 2013-05-22 | 泰尔重工股份有限公司 | Pressure-bearing connecting sleeve |
| CN104919200A (en) * | 2013-03-28 | 2015-09-16 | 宝马股份公司 | Clutch arrangement |
-
2008
- 2008-05-23 CN CNU2008200871816U patent/CN201221573Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115043A (en) * | 2013-02-28 | 2013-05-22 | 泰尔重工股份有限公司 | Pressure-bearing connecting sleeve |
| CN104919200A (en) * | 2013-03-28 | 2015-09-16 | 宝马股份公司 | Clutch arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090415 Termination date: 20100523 |