CN202924425U - Inflatable shaft for winding and unwinding device - Google Patents
Inflatable shaft for winding and unwinding device Download PDFInfo
- Publication number
- CN202924425U CN202924425U CN 201220568973 CN201220568973U CN202924425U CN 202924425 U CN202924425 U CN 202924425U CN 201220568973 CN201220568973 CN 201220568973 CN 201220568973 U CN201220568973 U CN 201220568973U CN 202924425 U CN202924425 U CN 202924425U
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- Prior art keywords
- shaft
- winding
- air
- unwinding device
- expansion block
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Abstract
The utility model discloses an inflatable shaft for a winding and unwinding device, which comprises a hollow shaft, an expansion air bag and expansion blocks, wherein the hollow shaft comprises a main shaft body and two end shafts; a plurality of strip-shaped holes are formed in the main shaft body; the expansion blocks are arranged in the strip-shaped holes; the expansion air bag is arranged in the main shaft body; the lower surfaces of the expansion blocks are contacted with the expansion air bag; the two end shafts are connected with inflation devices; and wear-resistant layers are arranged on the external surfaces of the two end shafts. With the adoption of the mode, pressure of the inflatable shaft on an internal wall of a winding drum is uniform; the wear-resisting properties of the two ends of the inflatable shaft are good; and the inflatable shaft is long in service life, simple and practical.
Description
Technical field
The utility model relates to the winding/unwinding device field, particularly relates to a kind of air-expanding shaft for winding/unwinding device.
Background technology
Air-expanding shaft all is used in many enterprises in modern times.Air-expanding shaft is a kind of special rolling, unreeling shaft, namely passes through the axle that high-pressure aerated rear surface (digital bar) can projection, and axle that venting rear surface part (digital bar) is retracted rapidly is called air-expanding shaft.Airpressure axle, main axis of dilatation, flatulence axle, inflatable roller, inflation axle, pressure axis, inflatable roller etc. are again in its title variation.Existing air-expanding shaft is all the single face inflation, makes air-expanding shaft inhomogeneous for the pressure of reel inwall, can cause reel to tilt; In addition, existing air-expanding shaft two ends wearing and tearing more severe, the service life of having reduced air-expanding shaft.
The utility model content
The technical matters that the utility model mainly solves is to provide a kind of air-expanding shaft for winding/unwinding device, can solve the defective that exists in prior art, and air-expanding shaft is even to the pressure of reel inwall, and the air-expanding shaft two ends are wear-resistant, long service life.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of air-expanding shaft for winding/unwinding device is provided, comprise: hollow shaft, swelling gasbag and expansion block, described hollow shaft comprises main shaft and two end axles, offer a plurality of strip shapes holes on described main shaft, described expansion block is arranged in described strip shape hole, described swelling gasbag is arranged on main shaft inside, the lower surface of described expansion block contacts with described swelling gasbag, all be connected with gas filled device on described two end axles, described two end axle outside faces are equipped with wearing layer.
In preferred embodiment of the utility model, described wearing layer is chromium coating.
In preferred embodiment of the utility model, described chromium coating thickness is 0.15 ~ 0.2mm.
In preferred embodiment of the utility model, described expansion block is arranged in described strip shape hole, and expansion block coordinates with strip shape hole gap.
In preferred embodiment of the utility model, described gas filled device is cylinder.
In preferred embodiment of the utility model, described hollow shaft adopts alloy steel to make.
The beneficial effects of the utility model are: the utility model is used for the air-expanding shaft of winding/unwinding device, and is even to the pressure of reel inwall, and air-expanding shaft two ends wear resisting property is good, and long service life is simple and practical.
Description of drawings
Fig. 1 is the structural representation that the utility model is used for air-expanding shaft one preferred embodiment of winding/unwinding device;
In accompanying drawing, the mark of each parts is as follows: 1, swelling gasbag, 2, expansion block, 3, main shaft, 4, the end axle, 5, gas filled device, 6, wearing layer.
The specific embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that, protection domain of the present utility model is made more explicit defining.
See also Fig. 1, the utility model embodiment comprises:
A kind of air-expanding shaft for winding/unwinding device, comprise: hollow shaft, swelling gasbag 1 and expansion block 2, described hollow shaft comprises main shaft 3 and two end axles 4, offer a plurality of strip shapes holes on described main shaft 3, described expansion block 2 is arranged in described strip shape hole, and described swelling gasbag 1 is arranged on main shaft 3 inside, and the lower surface of described expansion block 2 contacts with described swelling gasbag 1, all be connected with gas filled device 5 on described two end axles 4, described two end axle 4 outside faces are equipped with wearing layer 6.
All be connected with gas filled device 5 on described two end axles 4, because both sides all are provided with gas filled device 5, can inflate simultaneously, make air-expanding shaft even to the pressure of reel inwall.
Described wearing layer 6 is chromium coating.
Described chromium coating thickness is 0.15 ~ 0.2mm.
Chromium coating has increased the wear resisting property of end axle 4, has extended the service life of air-expanding shaft.
Described expansion block 2 is arranged in described strip shape hole, and expansion block 2 coordinates with strip shape hole gap, and expansion block 2 is firmly withstood the reel inwall under the impetus of swelling gasbag 1, and the band movable reel rotates.
Described gas filled device 5 is cylinder.
Described hollow shaft adopts alloy steel to make, and is durable in use.
The utility model is used for the air-expanding shaft of winding/unwinding device, and is even to the pressure of reel inwall, and air-expanding shaft two ends wear resisting property is good, and long service life is simple and practical.
The above is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification sheets and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present utility model.
Claims (6)
1. air-expanding shaft that is used for winding/unwinding device, it is characterized in that, comprise: hollow shaft, swelling gasbag and expansion block, described hollow shaft comprises main shaft and two end axles, offers a plurality of strip shapes holes on described main shaft, and described expansion block is arranged in described strip shape hole, described swelling gasbag is arranged on main shaft inside, the lower surface of described expansion block contacts with described swelling gasbag, all is connected with gas filled device on described two end axles, and described two end axle outside faces are equipped with wearing layer.
2. the air-expanding shaft for winding/unwinding device according to claim 1, is characterized in that, described wearing layer is chromium coating.
3. the air-expanding shaft for winding/unwinding device according to claim 2, is characterized in that, described chromium coating thickness is 0.15 ~ 0.2mm.
4. the air-expanding shaft for winding/unwinding device according to claim 1, is characterized in that, described expansion block is arranged in described strip shape hole, and expansion block coordinates with strip shape hole gap.
5. the air-expanding shaft for winding/unwinding device according to claim 1, is characterized in that, described gas filled device is cylinder.
6. the air-expanding shaft for winding/unwinding device according to claim 1, is characterized in that, described hollow shaft adopts alloy steel to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220568973 CN202924425U (en) | 2012-11-01 | 2012-11-01 | Inflatable shaft for winding and unwinding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220568973 CN202924425U (en) | 2012-11-01 | 2012-11-01 | Inflatable shaft for winding and unwinding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202924425U true CN202924425U (en) | 2013-05-08 |
Family
ID=48214409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220568973 Expired - Fee Related CN202924425U (en) | 2012-11-01 | 2012-11-01 | Inflatable shaft for winding and unwinding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202924425U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103287889A (en) * | 2013-05-21 | 2013-09-11 | 吴江市美晟机械设备有限公司 | Paper tape coiling device |
| CN105849021A (en) * | 2013-10-15 | 2016-08-10 | 温德莫勒及霍尔希尔公司 | Winding shaft |
| CN106219282A (en) * | 2016-09-27 | 2016-12-14 | 东莞市联洲知识产权运营管理有限公司 | Film rolling feeding frame |
| CN106348065A (en) * | 2016-09-27 | 2017-01-25 | 东莞市联洲知识产权运营管理有限公司 | Height-adjustable film winding feeding frame |
-
2012
- 2012-11-01 CN CN 201220568973 patent/CN202924425U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103287889A (en) * | 2013-05-21 | 2013-09-11 | 吴江市美晟机械设备有限公司 | Paper tape coiling device |
| CN105849021A (en) * | 2013-10-15 | 2016-08-10 | 温德莫勒及霍尔希尔公司 | Winding shaft |
| CN105849021B (en) * | 2013-10-15 | 2018-05-15 | 温德莫勒及霍尔希尔公司 | Spool |
| CN106219282A (en) * | 2016-09-27 | 2016-12-14 | 东莞市联洲知识产权运营管理有限公司 | Film rolling feeding frame |
| CN106348065A (en) * | 2016-09-27 | 2017-01-25 | 东莞市联洲知识产权运营管理有限公司 | Height-adjustable film winding feeding frame |
| CN106348065B (en) * | 2016-09-27 | 2017-09-08 | 东莞市联洲知识产权运营管理有限公司 | A kind of Height Adjustable film take-up stock shelf |
| CN106219282B (en) * | 2016-09-27 | 2017-12-15 | 李彩琴 | Film rolling feeding frame |
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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: 20130508 Termination date: 20131101 |