CN202592447U - Expansion shaft - Google Patents
Expansion shaft Download PDFInfo
- Publication number
- CN202592447U CN202592447U CN 201220252517 CN201220252517U CN202592447U CN 202592447 U CN202592447 U CN 202592447U CN 201220252517 CN201220252517 CN 201220252517 CN 201220252517 U CN201220252517 U CN 201220252517U CN 202592447 U CN202592447 U CN 202592447U
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- CN
- China
- Prior art keywords
- cutting knife
- groove
- expansion
- expanding block
- rounding knife
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an expansion shaft, wherein a groove is formed in the surface of a shaft main body; an airbag is arranged at the bottom of the groove; an expansion block is slightly smaller in size and is embedded and fixed inside the groove (the shape of the expansion block is not specifically limited as long as being possible to be embedded into the groove); and a cutting knife is sleeved on the expansion shaft and can move freely. When the airbag is aerated, the expansion block extrudes outwards, the top part slightly protrudes out of the surface of a bearing, and the expansion block acts on an inner ring of the cutting knife, so as to realize the function of fixing the cutting knife. The cutting knife can be moved by only discharging the air in the airbag, the expansion block falls into the groove automatically under the action of a weak external force, the cutting knife can move freely after force acting on the inner ring of the cutting knife is eliminated, and the cutting knife can be fixed after being regulated. The expansion shaft is simple and convenient, the damage to the cutting knife is not increased, the working efficiency is increased, and the cost is saved.
Description
Technical field
The utility model relates to axle, specifically a kind of main axis of dilatation.
Background technology
Rounding knife on the existing market separate machine is socketed on the axle, fixes through a plurality of screws, when rounding knife need be adjusted the position; All screws that need will to close on the several rounding knife are unscrewed, adjust to desired location after, again each screw tightening is fixed; This operation is time-consuming, at the bottom of the efficient.And repeatable operation is easy to the damaged screws sky like this, and has to change rounding knife, has so just caused a kind of material unaccounted-for (MUF).
In view of this, to the problems referred to above, propose a kind of reasonable in design and effectively improve the main axis of dilatation that is used for separate machine of above-mentioned disappearance.
The utility model content
The purpose of the utility model is to provide a kind of main axis of dilatation, can move freely rounding knife, adjusts the back and inflates fixing getting final product.Can not strengthen damage to rounding knife.Improve operating efficiency, practiced thrift cost.
In order to reach above-mentioned purpose, the utility model provides a kind of main axis of dilatation, comprises a body, and the circumferential surface of said axle body offers groove, and expanding block all is installed in groove, is provided with in the expanding block bottom to be used for expanding block is risen the air bag of expansion.
Blind hole is offered in said expanding block bottom, and said air bag places blind hole.
Be with rounding knife on the said axle body, said expanding block top withstands on the inner ring inwall of rounding knife.
Compared to prior art, the axle surface of the utility model is provided with a plurality of grooves, and air bag places trench bottom; The expanding block volume is smaller; Be embedded in and be fixed in (the expanding block shape does not have special restriction, can be embedded in the groove to get final product) in the groove, rounding knife is socketed on the main axis of dilatation and can move freely.Behind airbag aeration, expanding block outwards pushes, and the slightly outstanding bearing surface in top acts on the rounding knife inner ring, plays the fixedly effect of rounding knife.Rounding knife need move, as long as get rid of airbag gas, expanding block falls in the groove voluntarily under the external force effect is arranged slightly, and the power that acts on the rounding knife inner ring disappears, and just can move freely rounding knife, adjusts the back and inflates fixing getting final product.This is simple and quick, can not strengthen the damage to rounding knife.Improve operating efficiency, practiced thrift cost.
Description of drawings
Fig. 1 is the section of structure of a kind of main axis of dilatation of the utility model;
Profile when Fig. 2 is the application of a kind of main axis of dilatation of the utility model.
Among the figure: 1, bearing; 2, axle body; 3, expanding block; 4, air bag; 5, rounding knife.
The specific embodiment
Detailed description of relevant the utility model and technology contents, conjunction with figs. are explained as follows, yet accompanying drawing only provides the usefulness of reference with explanation, are not to be used for the utility model is limited.
According to illustrated in figures 1 and 2, a kind of main axis of dilatation comprises the axle body 2 that cooperates with bearing 1; The circumferential surface of said axle body is offered groove; Certainly generally not restriction of groove quantity, such as having adopted six grooves in the present embodiment, as shown in the figure; Expanding block 3 all is installed in each groove, is provided with in expanding block bottom and is used for expanding block is risen the air bag 4 of expansion.Blind hole is offered in said expanding block bottom, and said air bag places blind hole.Be with rounding knife 5 on the said axle body, said expanding block top withstands on the inner ring inwall of rounding knife.
The expanding block volume of the utility model is smaller, is embedded in and is fixed in (the expanding block shape does not have special restriction, can be embedded in the groove to get final product) in the groove, and rounding knife is socketed on the main axis of dilatation and can move freely.Behind airbag aeration, expanding block outwards pushes, and the slightly outstanding bearing surface in top acts on the rounding knife inner ring, plays the fixedly effect of rounding knife.Rounding knife need move, as long as get rid of airbag gas, expanding block falls in the groove voluntarily under the external force effect is arranged slightly, and the power that acts on the rounding knife inner ring disappears, and just can move freely rounding knife, adjusts the back and inflates fixing getting final product.This is simple and quick, can not strengthen the damage to rounding knife.Improve operating efficiency, practiced thrift cost.
The above is merely the preferred embodiment of the utility model, and non-in order to limit the claim of the utility model, the equivalence of the patent spirit of other utilization the utility model changes, and all should all belong to the claim of the utility model.
Claims (3)
1. a main axis of dilatation is characterized in that, comprises a body, and the circumferential surface of said axle body offers groove, and expanding block all is installed in groove, is provided with in the expanding block bottom to be used for expanding block is risen the air bag of expansion.
2. a kind of main axis of dilatation according to claim 1 is characterized in that, blind hole is offered in said expanding block bottom, and said air bag places blind hole.
3. a kind of main axis of dilatation according to claim 1 is characterized in that, is with rounding knife on the said axle body, and said expanding block top withstands on the inner ring inwall of rounding knife.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220252517 CN202592447U (en) | 2012-05-28 | 2012-05-28 | Expansion shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220252517 CN202592447U (en) | 2012-05-28 | 2012-05-28 | Expansion shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202592447U true CN202592447U (en) | 2012-12-12 |
Family
ID=47310029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220252517 Expired - Fee Related CN202592447U (en) | 2012-05-28 | 2012-05-28 | Expansion shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202592447U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243477A (en) * | 2013-04-26 | 2013-08-14 | 吴江江旭纺织有限公司 | Ring cutter of cylindrical weft-knitted fabric knitting machine |
| CN104174927A (en) * | 2013-05-21 | 2014-12-03 | 东莞市振华新能源科技有限公司 | Automatic expansion gap elimination device for cutter shaft of slitting cutter of lithium iron battery |
| CN114109964A (en) * | 2021-11-24 | 2022-03-01 | 侯祖刚 | Hydraulic cylinder top cap and oil cylinder connecting structure |
-
2012
- 2012-05-28 CN CN 201220252517 patent/CN202592447U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243477A (en) * | 2013-04-26 | 2013-08-14 | 吴江江旭纺织有限公司 | Ring cutter of cylindrical weft-knitted fabric knitting machine |
| CN104174927A (en) * | 2013-05-21 | 2014-12-03 | 东莞市振华新能源科技有限公司 | Automatic expansion gap elimination device for cutter shaft of slitting cutter of lithium iron battery |
| CN114109964A (en) * | 2021-11-24 | 2022-03-01 | 侯祖刚 | Hydraulic cylinder top cap and oil cylinder connecting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20180528 |