CN101759066A - Gas expansion shaft - Google Patents
Gas expansion shaft Download PDFInfo
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- CN101759066A CN101759066A CN200810190218A CN200810190218A CN101759066A CN 101759066 A CN101759066 A CN 101759066A CN 200810190218 A CN200810190218 A CN 200810190218A CN 200810190218 A CN200810190218 A CN 200810190218A CN 101759066 A CN101759066 A CN 101759066A
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Abstract
The invention discloses a gas expansion shaft, which comprises a support shaft body, an expansion unit and a shaft connection unit. The support shaft body comprises a plurality of gas expansion channels and a plurality of limit channels that are arranged at intervals at one outer surface of the support shaft along the length direction. The expansion unit comprises a plurality of propping pieces and a plurality of gas bags, wherein the propping pieces cross the gas expansion channels and are respectively matched with the adjacent limit channels in a sliding way, and the gas bags are arranged in the gas expansion channels and are used for push the propping pieces to expand outward to clamp a material pipe closely under the action of air pressure. The shaft connection unit comprises two shaft connection pieces penetrated and fixed at the two ends of the shaft hole of a shaft body. Therefore, with the adoption of the propping pieces with the same length as the shaft body, the closely-clamping length is increased, the steadiness and reliability in clamping the material pipe are improved, and the processing and assembling procedures are simplified.
Description
[technical field]
The present invention relates to a kind of gas expansion shaft, particularly relate to a kind of gas expansion shaft that utilizes air pressure to expand outwardly.
[background technology]
Consult Fig. 1, Fig. 2, No. 97111748 " gas expansion shaft " patent of invention case with the previous application of this case applicant is example, several holding pieces 12, the axle that consist predominantly of a body 11, are set in this body 11 are located at several air bag groups 13 of this body 11 2 ends, and two parts 14 that are coupling.This body 11 has several conduits 111 that are formed on an outside face and extend along an axis direction.Aforementioned holding piece 12 is to be set in this conduit 111.Aforementioned air bag group 13 has the air bag 131 that is contained in these body 11 conduits, compressing two pressing blocks 132 at these air bag 131 2 ends respectively, and screws togather and compel to squeeze a bolt 133 of these pressing block 132 these air bags 131 of sealing with this body 11.Aforementioned axis fitting 14 is to be coupling respectively at this body 11 2 ends, and has two air valves 141 that guiding air pressure enters this air bag 131 respectively.
Whereby, when aforementioned air bag 131 was subjected to gas pressure, the aforementioned holding piece 12 of ejection was that the center expands outwardly with this axis respectively, reaches the purpose of packing clamping one material pipe 2.
Yet, because aforementioned pressing block 132 is to be separately positioned on aforementioned holding piece 12 2 sides with aforementioned bolt 133, therefore, with regard to aforementioned holding piece 12, must get out of the way aforementioned pressing block 132 and aforementioned bolt 133, lose two sections positions that are used for this material pipe 2 of packing clamping, and in the space that lifting is still arranged aspect the packing grip.So this case contriver as satisfying, is not still adhering to excelsior spirit, constantly detailed think of funiculus and the skilful intelligence of utilization are are actively researched and developed with great concentration, eventually appearance of the present invention must be arranged.
[summary of the invention]
The objective of the invention is to be to provide a kind of gas expansion shaft that can promote the packing clamping length.
Gas expansion shaft of the present invention comprises a body, an expansion elements, and a shaft connection unit.This body has around an axis and defines an axial wall of an axis hole, and several gas of following this axial wall length direction to be formed on this axial wall one outside face and space rise passage and several limit channels.This expansion elements has several holding pieces, and several air bags, aforementioned holding piece has respectively crosses over a rise floor of passage of this gas, and two fins that are formed on this floor one bottom surface and close with adjacent two limit channels cunnings, aforementioned air bag is that the gas that is separately positioned on this body rises in the passage, and be subjected to gas pressure respectively, the aforementioned holding piece of ejection is that the center expands outwardly with this axis.This shaft connection unit has and fastens at two of these body axis hole two ends part that is coupling.
Beneficial effect of the present invention is: can with the locating part of crossing over this limit channels, reach the purpose that promotes the packing clamping length by the limit channels of following this axial wall length direction to extend.
[description of drawings]
Fig. 1 is a block diagram, and application case number No. 97111748 case in Taiwan is described;
Fig. 2 is a cutaway view of aforementioned No. 97111748 case;
Fig. 3 is a three-dimensional exploded view, and one first preferred embodiment of the present invention's one gas expansion shaft is described;
Fig. 4 is a combination stereogram of this first preferred embodiment;
Fig. 5 is the cutaway view along Fig. 4 straight line V-V direction;
Fig. 6 is the cutaway view along Fig. 4 straight line VI-VI direction;
Fig. 7 is a cutaway view of this first preferred embodiment packing clamping, one material pipe;
Fig. 8 is a cutaway view, and one second preferred embodiment of the present invention's one gas expansion shaft is described;
Fig. 9 is a three-dimensional exploded view, and one the 3rd preferred embodiment of the present invention's one gas expansion shaft is described; And
Figure 10 is a cutaway view of the 3rd preferred embodiment.
[specific embodiment]
The present invention is described in detail below in conjunction with drawings and Examples:
Before the present invention is described in detail, be noted that in the following description content similar elements is to represent with identical numbering.
Consult Fig. 3, Fig. 4 and Fig. 5, one first preferred embodiment of gas expansion shaft of the present invention comprises a fulcrum body 3, an expansion elements 4, and a shaft connection unit 5.
This body 3 has around an axis X and defines an axial wall 31 of an axis hole 30, and several gas of following these axial wall 31 length directions to be formed on these axial wall 31 1 outside faces and space rise that passage 32 runs through several screws 34 of this axial wall 31 with several limit channels 33, relative this limit channels 33, this limit channels 33 runs through several perforations 35 of this axial wall 31 relatively, and this limit channels 33 runs through this axial wall 31 and is positioned at adjacent screw 34 and several pores 36 of 35 of perforations relatively.Aforementioned screw 34, perforation 35 and pore 36 be respectively two two be one group of position that is formed on contiguous these body 3 two ends.
This expansion elements 4 has several holding pieces 41, several elastic elements 42, several air bags 43, several pads 44, several pressing blocks 45, and several bolts 46.Aforementioned holding piece 41 have respectively cross over these body 3 gas rise passage 32 a floor 411, be formed on these floor 411 1 bottom surfaces and with adjacent two limit channels, 33 sliding two fins 412 that close, and be formed on these floor 411 bottom surfaces and place into rise a base plate 413 in the passage 32 of this gas.Aforementioned floor 411 is to be that the center follows the same curvature radius to extend with this axis X.Aforementioned elastic element 42 is the fins 412 that are set in the limit channels 33 of this body 3 respectively and push this ejector 41, and making this holding piece 41 is that (as Fig. 6) shunk at the center with this axis X.Aforementioned air bag 43 is that the gas that is set in this body 3 respectively rises in the passage 32, and has two gas ports 431 that dock with this pore 36 respectively.Aforementioned pad 44 be respectively relatively this gas port 431 cover and put on this air bag 43, being used for relatively, this air bag 43 forms a protective cover.Aforementioned pressing block 45 is that relative respectively this pad 44 compels to be against on this air bag 43.Aforementioned bolt 46 is to run through the screw 34 that this pressing block 45 and spiral shell are worn this body 3 respectively, and then urgent these pressing block 45 firm these air bags 43, and compels to support pore 36 airtight contacts of gas port 431 with this body 3 of this air bag 43.
This shaft connection unit 5 has two be coupling part 51, several first spigots 52, two envelopes 53 and several second spigots 54.Aforementioned axis fitting 51 is axis hole 30 2 ends that fasten at this body 3, and have the runner 511 that extends along this axis X direction respectively, be formed on an outside face and be communicated with these body 3 pores 36 and this runner 511 an annular groove 512, be formed on this outside face and guiding air pressure enters two air valves 513 of this runner 511, and be formed on several screws 514,515,516 of an outside face around this axis X.Aforementioned screw 514 is for screwing togather with this bolt 46.Aforementioned first spigot 52 is that spiral shell is worn the perforation 35 of this body 3 and screwed togather with the screw 515 of this part 51 that is coupling respectively.Aforementioned axis envelope 53 is ring wall 31 2 ends that are enclosed in this body 3, and in order to spacing aforementioned holding piece 41.Aforementioned second spigot 54 is that spiral shell is worn this envelope 53 and screwed togather with the screw 516 of this part 51 that is coupling respectively, makes aforementioned axis fitting 51 and these body 3 firm being combined as a whole.
Consult Fig. 6, Fig. 7, when the air valve 513 of air pressure by aforementioned axis fitting 51, through this runner 511, this annular groove 512, the pore 36 of this body 31, the gas port 431 of aforementioned air bag 43 enters in the aforementioned air bag 43, aforementioned air bag 43 can expand because being full of air pressure, and the base plate 413 of the aforementioned holding piece 41 of ejection, making aforementioned holding piece 41 is that the center expands outwardly with this axis X, after extremely the fin 412 of aforementioned holding piece 41 compresses aforementioned elastic elements 42 and is hampered by the cell wall of aforementioned limit channels 33, aforementioned holding piece 41 be able to be followed the circular arc of these material pipe 2 internal diameters with this floor 411, compel to be against this material pipe 2 one inside faces 21, in this preferred embodiment, the present invention wears pivot at a body (figure does not show) with the aforementioned part 51 that is coupling, making integral body is to see through aforementioned holding piece 41 to form interlock with this material pipe 2, and then be center rotation with this axis X, reach the purpose that furls material.
When aforementioned air valve 513 is touched and is discharged air pressure, aforementioned air bag 43 can recover flat form and discharge aforementioned holding piece 41, making aforementioned holding piece 41 be subjected to the elastic acting force of aforementioned elastic element 42 is that inwardly shrink at the center with this axis X, reaches the purpose that discharges this material pipe 2.
Consulting Fig. 8, is the present invention's one second preferred embodiment, and itself and this first preferred embodiment is roughly the same, difference be in:
This shaft connection unit 5 has and replaces aforementioned axis fitting 51 and fasten equally at two of this body 3 axis holes 30 2 ends part 55 that is coupling.The runner 552 that aforementioned axis fitting 55 has a ring wall 551 around an axis X respectively, extend along this axis X direction, be formed on an outside face and be communicated with an annular groove 553 of these body 3 pores 36 and this runner 552, and be formed on the air valve 554 that this outside face and guiding air pressure enter this runner 511.
The air valve 554 of the aforementioned fitting 51 that is coupling can be guided air pressure equally and be entered aforementioned air bag 43, making aforementioned holding piece 41 is that the center expands outwardly with this axis X, to the inside face 21 of compeling to be against this material pipe 2, in this preferred embodiment, the present invention can be by the design of complete hollow, and directly is set on the axostylus axostyle (figure does not show) of facility, whereby, integral body of the present invention is to be center rotation with this axis X equally, reaches the purpose that furls material.
Consulting Fig. 9, Figure 10, is the present invention 1 the 3rd preferred embodiment, and itself and this first preferred embodiment is roughly the same, difference be in:
It is one group of totally four bearings 561,562, two branch center axles 57 that this shaft connection unit 5 also has integrated respectively two be coupling part 51 ' and 53 ', two two of two axles envelopes, and a connecting rod 58.This part 51 ' that is coupling is to be installed in this body 3 two ends with this axle envelope 53 ' equally, and is used for spacing aforementioned holding piece 41.Aforementioned bearings the 561, the 562nd is installed in this part 51 ' that is coupling respectively and seals in 53 ' with this axle.Aforementioned center shaft 57 is to wear pivot respectively on 561,562 on this group bearing.This connecting rod 58 is the aforementioned center shafts 57 of serial connection, makes aforementioned center shaft 57 form interlock.
The present invention can guide air pressure equally and enter aforementioned air bag 43, making aforementioned holding piece 41 is that the center expands outwardly with this axis X, to the inside face 21 of compeling to be against this material pipe 2, in this preferred embodiment, the present invention can be by the design of aforementioned bearings 561,562, making this body 3 is the center rotation with aforementioned center shaft 57, reaches the purpose that furls material.
According to the above as can be known, gas expansion shaft of the present invention has following advantage and effect:
Because the holding piece 41 of Ben Mingfa is to cross over this gas rise passage 32 and aforementioned pressing block 45, bolt 46, therefore, except succinct attractive in appearance in appearance, and the aforementioned holding piece 41 isometric with this body 3, the packing clamping length can significantly increase, and then effectively promote grip, and simplify processing and package program.
Claims (10)
1. gas expansion shaft is characterized in that: comprise:
One fulcrum body has around an axis and defines an axial wall of an axis hole, and several gas of following this axial wall length direction to be formed on this axial wall one outside face and space rise passage and several limit channels;
One expansion elements, have several holding pieces, and several air bags, aforementioned holding piece has respectively crosses over a rise floor of passage of this gas, and two fins that are formed on this floor one bottom surface and close with adjacent two limit channels cunnings, aforementioned air bag is that the gas that is separately positioned on this body rises in the passage, and is subjected to gas pressure respectively, and the aforementioned holding piece of ejection is that the center expands outwardly with this axis; And
One shaft connection unit has two parts that are coupling that fasten at these body axis hole two ends.
2. gas expansion shaft as claimed in claim 1 is characterized in that, the floor of aforementioned holding piece is to be that the center follows the same curvature radius to extend with this axis.
3. gas expansion shaft as claimed in claim 1, it is characterized in that, aforementioned holding piece also has to be formed on this floor one bottom surface and to place into this gas and rises by passage to the base plate that contacts with this air bag, this expansion elements also has several elastic elements, aforementioned elastic element is the fin that is set in the limit channels of this body respectively and pushes this ejector, and this ejector is inwardly shunk in this air bag pressure leak process.
4. gas expansion shaft as claimed in claim 1, it is characterized in that, this body also has several pores that run through this axial wall, aforementioned air bag has at least one gas port that docks with aforementioned gas holes respectively, the aforementioned axis fitting has respectively along a runner of this axis direction extension, an annular groove that is formed on an outside face and is communicated with this body pore and this runner, and is formed on this outside face and guides at least one air valve that air pressure enters this runner.
5. gas expansion shaft as claimed in claim 4, it is characterized in that, this expansion elements also has several pads, several pressing blocks, and several bolts, aforementioned pad be respectively relatively this gas port cover and put on this air bag, aforementioned pressing block be respectively relatively this pad compel to be against on this air bag, aforementioned bolt is to run through this pressing block respectively and screw togather with this body, and firm this air bag of urgent this pressing block, and compel to contact with the pore of this body is airtight to the gas port of this air bag.
6. gas expansion shaft as claimed in claim 5 is characterized in that, this body also has relative this limit channels and runs through several screws of this axial wall, and aforementioned bolt is after spiral shell is worn the screw of this axial wall, screws togather with this part that is coupling.
7. gas expansion shaft as claimed in claim 1 is characterized in that, this body also has several perforations that relative this limit channels runs through this axial wall, and this shaft connection unit also has perforation that runs through this body and several first spigots that screw togather with the aforementioned axis fitting.
8. gas expansion shaft as claimed in claim 1 is characterized in that, this shaft connection unit also has two envelopes, and the aforementioned axis envelope is ring wall two ends that are enclosed in this body, in order to spacing aforementioned holding piece.
9. gas expansion shaft as claimed in claim 8 is characterized in that, this shaft connection unit also has several second spigots, and aforementioned second spigot is to run through this envelope respectively and screw togather with this body.
10. gas expansion shaft as claimed in claim 1, it is characterized in that, this shaft connection unit also has two pairs of bearings, two axle center, and pipe link, each is to be installed in respectively in aforementioned axis fitting and the aforementioned axis envelope to bearing, aforementioned axle center is to be set in each between bearing along this axis respectively, and this pipe link is to be set in the axis hole of this body and to be connected in series aforementioned axle center respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810190218A CN101759066A (en) | 2008-12-26 | 2008-12-26 | Gas expansion shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810190218A CN101759066A (en) | 2008-12-26 | 2008-12-26 | Gas expansion shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101759066A true CN101759066A (en) | 2010-06-30 |
Family
ID=42490476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810190218A Pending CN101759066A (en) | 2008-12-26 | 2008-12-26 | Gas expansion shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101759066A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102452585A (en) * | 2010-10-29 | 2012-05-16 | 吴江市盛丰转移印花有限公司 | Weaving shaft cylinder |
| CN104891274A (en) * | 2015-05-15 | 2015-09-09 | 美塞斯（珠海保税区）工业自动化设备有限公司 | Pneumatic expanding shaft with external expanding keys |
| CN106081747A (en) * | 2016-08-30 | 2016-11-09 | 河南义腾新能源科技有限公司 | A kind of barrier film rolling roller |
| CN107934690A (en) * | 2017-11-15 | 2018-04-20 | 绵阳巨源电子科技有限公司 | A kind of actinobacillus device for rail locomotive capacitor production line |
| CN109353898A (en) * | 2018-11-29 | 2019-02-19 | 广州里工实业有限公司 | Fast disassembly type spline air-expanding shaft |
| CN109573743A (en) * | 2018-12-18 | 2019-04-05 | 竹林伟业科技发展（天津）股份有限公司 | A kind of minor diameter tube core novel gas expansion shaft and rolling-up mechanism |
| CN110788187A (en) * | 2019-11-29 | 2020-02-14 | 嵊州市鑫林机械有限公司 | Novel flanging machine |
| CN111891852A (en) * | 2020-08-06 | 2020-11-06 | 冯春伦 | Convex key type air expansion shaft with good anti-skid performance |
-
2008
- 2008-12-26 CN CN200810190218A patent/CN101759066A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102452585A (en) * | 2010-10-29 | 2012-05-16 | 吴江市盛丰转移印花有限公司 | Weaving shaft cylinder |
| CN104891274A (en) * | 2015-05-15 | 2015-09-09 | 美塞斯（珠海保税区）工业自动化设备有限公司 | Pneumatic expanding shaft with external expanding keys |
| CN106081747A (en) * | 2016-08-30 | 2016-11-09 | 河南义腾新能源科技有限公司 | A kind of barrier film rolling roller |
| CN106081747B (en) * | 2016-08-30 | 2017-12-05 | 河南义腾新能源科技有限公司 | A kind of barrier film winds roller |
| CN107934690A (en) * | 2017-11-15 | 2018-04-20 | 绵阳巨源电子科技有限公司 | A kind of actinobacillus device for rail locomotive capacitor production line |
| CN109353898A (en) * | 2018-11-29 | 2019-02-19 | 广州里工实业有限公司 | Fast disassembly type spline air-expanding shaft |
| CN109573743A (en) * | 2018-12-18 | 2019-04-05 | 竹林伟业科技发展（天津）股份有限公司 | A kind of minor diameter tube core novel gas expansion shaft and rolling-up mechanism |
| CN109573743B (en) * | 2018-12-18 | 2024-03-26 | 竹林伟业科技发展（天津）股份有限公司 | Air expansion shaft and winding mechanism for small-diameter tube core |
| CN110788187A (en) * | 2019-11-29 | 2020-02-14 | 嵊州市鑫林机械有限公司 | Novel flanging machine |
| CN111891852A (en) * | 2020-08-06 | 2020-11-06 | 冯春伦 | Convex key type air expansion shaft with good anti-skid performance |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100630 |