CN207989516U - A kind of mechanical expansion shaft - Google Patents
A kind of mechanical expansion shaft Download PDFInfo
- Publication number
- CN207989516U CN207989516U CN201820381145.4U CN201820381145U CN207989516U CN 207989516 U CN207989516 U CN 207989516U CN 201820381145 U CN201820381145 U CN 201820381145U CN 207989516 U CN207989516 U CN 207989516U
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- mandrel
- cavity
- axis body
- sliding block
- dilatation
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Abstract
The utility model is related to a kind of mechanical expansion shafts, include axis body and mandrel, the mandrel is mounted in axis body and makes to form more than one cavity in axis body, and be cased with and be axially movable when main axis of dilatation ventilate and the sliding block of the swollen key drive connection that is equipped with axis body external circumferential surface, the spring for driving when main axis of dilatation is deflated sliding block axial direction resetting movement positioned at the mandrel of each cavity, the both ends of spring are connect with one end of mandrel and sliding block respectively；The inside side walls of sliding block and cavity are airtight to be slidably connected, and its other end forms air cavity with cavity, and the mandrel for being located at air cavity is equipped with stomata, and stomata is connect with the gas-tpe fitting that main axis of dilatation spindle nose is equipped with.In this way, it can be realized by the restoring force of spring outer swollen, completely avoid in coiling process that reel loosens caused by gas leakage, so as to cause the not good enough problem of reeling quality, reel fixed effect is more stable, more reliable, especially suitable for vacuum environment, and also it is simple in structure, it is readily produced, is conducive to mass production and popularization and application.
Description
Technical field
The utility model is related to a kind of mechanical expansion shafts.
Background technology
Currently, taking-up equipment on the market be all completed using swelling shaft it is fixed to reel；But existing swelling shaft is all
It is air-expanding shaft, i.e.,：When toward swelling shaft ventilation, the swollen key progress on swelling shaft surface is outer swollen, on the contrary, when deflating from swelling shaft, swelling shaft table
The swollen key in face is inside contracted；That is, when taking-up equipment is batched, it is necessary to which holding ventilates to swelling shaft could always
Reel is fixed in holding, and energy consumption is larger, relatively high to the air pressure requirement of ventilation, once gas leakage, which occurs, is susceptible to reel
Loose phenomenon finally influences reeling quality, therefore these swelling shafts are not suitable for the production environment of vacuum.
Utility model content
To solve the above-mentioned problems in the prior art, the utility model provides one kind and completely avoids batching
Reel loosens caused by gas leakage in journey, and reel fixed effect is stable, reliable, especially suitable for vacuum environment, and it is simple in structure, easily
In the mechanical expansion shaft of production.
In order to solve the above technical problems, the utility model adopts the following technical solution：
A kind of mechanical expansion shaft, includes axis body and mandrel, and the mandrel is mounted in axis body and makes to form one in axis body
It is a with upper cavity, and positioned at each cavity mandrel be cased with when main axis of dilatation is ventilated be axially movable and with axis body external circumferential table
The sliding block for the swollen key drive connection that face is equipped with, the spring that sliding block axial direction resetting movement is driven when main axis of dilatation is deflated, the spring
Both ends connect respectively with one end of mandrel and sliding block；The inside side walls of the sliding block and cavity are airtight to be slidably connected, and it is another
One end forms air cavity with cavity, and the mandrel for being located at the air cavity is equipped with stomata, the gas that the stomata is equipped with main axis of dilatation spindle nose
Pipe fitting connects.
Further, described oblique equipped with the inclined-plane a and inclined-plane b for being mutually matched, being drivingly connected between the sliding block and swollen key
Face a and inclined-plane b is tilted towards the axle center of the reply gradual mandrel of force direction of spring.
Further, it is equipped with air flue a in the mandrel, air flue b, the outer end of the spindle nose are equipped in the main axis of dilatation spindle nose
End is additionally provided with the gas-tpe fitting being connect with the outer end of air flue b；When assembling, the inner end of the main axis of dilatation spindle nose is mounted on axis body
On, and connect with mandrel, and air flue a is connect with the inner end of air flue b.
Further, the mandrel be equipped with more than one closely connect with axis body inner wall and spaced set, by axis
Internal body portion is divided into the sealed separation portion of more than two mutually isolated cavitys, and core the tip of the axis is equipped with nut, is set to
One end of spring in more than two cavitys is held out against respectively in sealed separation portion and nut.
Further, the sealed separation portion is integrally fixed at the annulus concentric on mandrel and with mandrel, all side surfaces
Equipped with seal groove, it is equipped with and the close-connected sealing ring of axis body inner wall in the seal groove.
Further, the other end face of the sliding block of two cavitys is all provided with fluted, the groove and respective cavities
The inner end in interior sealed separation portion or main axis of dilatation spindle nose collectively forms the air cavity.
Further, the swollen key is rubber key.
Further, it is additionally provided with blade on the swollen key, the blade covers the gap between swollen key and swollen key and axis body.
The utility model has the beneficial effects that：
The utility model by the restoring force of spring through the above technical solutions, can be realized outer swollen, it is entirely avoided
Reel loosens caused by gas leakage in coiling process, and so as to cause the not good enough problem of reeling quality, reel fixed effect is more stable, more
Reliably, it especially suitable for vacuum environment, and simple in structure, is readily produced, is conducive to produce in enormous quantities and popularization and application.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of mechanical expansion shaft embodiment described in the utility model；
Fig. 2 is a kind of schematic cross-sectional view of mechanical expansion shaft embodiment described in the utility model；
In figure：1-axis body, 2-mandrels, 21-sealed separation portions, 22-nuts, 23-seal grooves, 24-sealing rings,
3-cavitys, 4-sliding blocks, 5-springs, 6-swollen keys, 61-blades, 7-air cavitys, 8-stomatas, 9-main axis of dilatation spindle noses, 10-gas
Pipe fitting, 11-inclined-plane a, 12-inclined-plane b, 13-air flue a, 14-air flue b.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only explaining this
Utility model is not used to limit the utility model.
As shown in Figures 1 and 2：
Mechanical expansion shaft described in the utility model embodiment, includes axis body 1 and mandrel 2, and the mandrel 2 is mounted on axis body
In 1 and make to form two cavitys 3 in axis body 1, and is cased with positioned at the mandrel 2 of each cavity 3 and can axially be transported when main axis of dilatation is ventilated
Sliding block 4 that swollen key 6 that is dynamic and being equipped with 1 external circumferential surface of axis body is drivingly connected drives the axial direction of sliding block 4 when main axis of dilatation is deflated
The both ends of the spring 5 of resetting movement, the spring 5 are connect with one end of mandrel 2 and sliding block 4 respectively；The sliding block 4 and cavity 3
Inside side walls it is airtight be slidably connected, and its other end and cavity 3 form air cavity 7, and the mandrel 2 for being located at the air cavity 7 is equipped with gas
Hole 8, the stomata 8 are connect with the gas-tpe fitting 10 that main axis of dilatation spindle nose 9 is equipped with.
Concrete structure can be：The mandrel 2 is equipped with 1 inner wall of axis body is close-connected, will be separated into two inside axis body 1
The sealed separation portion 21 of a mutually isolated cavity 3, the sealed separation portion 21 can be integrally fixed on mandrel 2 and and core
The concentric annulus of axis 2, all side surfaces are equipped with seal groove 23, are equipped in the seal groove 23 and are closely connect with 1 inner wall of axis body
Sealing ring 24；The end of the mandrel 2 is equipped with nut 22, and one end of the spring 5 in two cavitys 3 is held out against respectively close
It seals on lattice 21 and nut 22, the other end of the spring 5 is held out against on sliding block 4；The other end of the sliding block 4 of two cavitys 3
End face is all provided with fluted, and the groove and the inner end in sealed separation portion 21 or main axis of dilatation spindle nose 9 in respective cavities 3 collectively form
The air cavity 7；And the inclined-plane a 11 and inclined-plane b 12 for being equipped with and being mutually matched between sliding block 4 and swollen key 6, be drivingly connected, it is described
Inclined-plane a 11 and inclined-plane b 12 is tilted towards the axle center for replying the gradual mandrel of force direction 2 of spring 5.Gas is equipped in the mandrel 2
Road a 13, is equipped with air flue b 14 in the main axis of dilatation spindle nose 9, and the outside end of the spindle nose 9 is additionally provided with outer with air flue b 14
Hold the gas-tpe fitting 10 of connection；When assembling, the inner end of the main axis of dilatation spindle nose 9 is mounted on axis body 1, and is connect with mandrel 2, and
Air flue a 13 is connect with the inner end of air flue b 14.
Mechanical expansion shaft described in the utility model is in use, by the connection gas supply dress of gas-tpe fitting 10 on main axis of dilatation spindle nose 9
It sets, when being ventilated to mechanical expansion shaft by gas-tpe fitting 10, gas enters through air flue b 14, air flue a 13 and stomata 8 successively
In air cavity 7, drive sliding block 4 towards 5 direction of spring be axially moved, at this time 5 stress of spring, compression, while swollen key 6 along inclined-plane a 11 to
Interior sliding inside contracts, you can by drum sheath on mechanical expansion shaft；Then mechanical expansion shaft is put by gas-tpe fitting 10 again
Gas, at this time the restoring force of spring 5 make sliding block 4 be axially moved, reset, so that swollen key 6 slid in and out along inclined-plane a 11, bulged outward,
The inner wall of reel is held out against, realizes and fixes.
In this way, mechanical expansion shaft described in the utility model is outer swollen by the restoring force realization of spring 5, it is entirely avoided rolling up
Reel loosens caused by gas leakage during taking, and so as to cause the not good enough problem of reeling quality, reel fixed effect is more stable, more may be used
It leans on, especially suitable for vacuum environment, and simple in structure, is readily produced, be conducive to produce in enormous quantities and popularization and application.
In addition, the swollen key 6 can be rubber key, avoiding makes reel deformation because outer swollen excessive, influences reeling quality
The problem of, and blade 61 is additionally provided on swollen key 6, the blade 61 covers the gap between swollen key 6 and swollen key 6 and axis body 1, both
The uniformity and fixed effect for enhancing reel stress in turn avoid dust and enter in the gap between swollen key 6 and axis body 1, shadow
It rings swollen outside swollen key 6 and inside contracts, play a protective role, further increase the stability of mechanical expansion shaft performance.
Certainly, the mandrel 2 is mounted in axis body 1 and makes to be formed in axis body 1 more than one cavity 3, such as：Cancel core
Sealed separation portion 21 on axis 2 and the spring 5 in sealed separation portion 21 is held out against, form a cavity 3 in axis body 1, and by two
A sliding block 4 is integrally connected, and stomata 8 is only equipped on the mandrel 2 at the air cavity 7 between sliding block 4 and main axis of dilatation spindle nose 9；
For another example：The mandrel 2 be equipped with more than one closely connect with 1 inner wall of axis body and spaced set, by 1 inside points of axis body
It is divided into the sealed separation portion 21 of more than two mutually isolated cavitys 3, and is cased with swollen positioned at the mandrel 2 of each cavity 3
Swelling shaft is axially movable when ventilating and the swollen key 6 that is equipped with 1 external circumferential surface of axis body is drivingly connected sliding block 4, in main axis of dilatation
The spring 5 of the axial resetting movement of sliding block 4 is driven when deflation.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these are improved and profit
Decorations are also considered as the scope of protection of the utility model.
Claims (8)
1. a kind of mechanical expansion shaft, it is characterised in that：Include axis body (1) and mandrel (2), the mandrel (2) is mounted on axis body
(1) in and make to form more than one cavity (3) in axis body (1), and be cased in main axis of dilatation positioned at the mandrel (2) of each cavity (3)
It is axially movable and sliding block (4) that the swollen key (6) that is equipped with axis body (1) external circumferential surface is drivingly connected, is expanding when ventilation
Axis drives the spring (5) of the axial resetting movement of sliding block (4) when deflating, the both ends of the spring (5) respectively with mandrel (2) and sliding block
(4) one end connection；The inside side walls of the sliding block (4) and cavity (3) are airtight to be slidably connected, and its other end and cavity (3)
Air cavity (7) is formed, the mandrel (2) for being located at the air cavity (7) is equipped with stomata (8), on the stomata (8) and main axis of dilatation spindle nose (9)
Gas-tpe fitting (10) connection being equipped with.
2. mechanical expansion shaft according to claim 1, it is characterised in that：It is equipped between the sliding block (4) and swollen key (6) mutual
Matching, the inclined-plane a (11) being drivingly connected and inclined-plane b (12), the inclined-plane a (11) and inclined-plane b (12) are towards the reply of spring (5)
The axle center of the gradual mandrel of force direction (2) tilts.
3. mechanical expansion shaft according to claim 1, it is characterised in that：Air flue a (13) is equipped in the mandrel (2), it is described
Air flue b (14) is equipped in main axis of dilatation spindle nose (9), the outside end of the spindle nose (9) is additionally provided with to be connect with the outer end of air flue b (14)
Gas-tpe fitting (10)；When assembling, the inner end of the main axis of dilatation spindle nose (9) is mounted on axis body (1), and is connect with mandrel (2),
And air flue a (13) is connect with the inner end of air flue b (14).
4. according to claims 1 or 2 or 3 mechanical expansion shafts, it is characterised in that：The mandrel (2) is equipped with more than one
Closely connect with axis body (1) inner wall and spaced set, will be separated into inside axis body (1) it is more than two mutually isolated described
The sealed separation portion (21) of cavity (3), and the end of mandrel (2) is equipped with nut (22), the bullet being set in more than two cavitys (3)
One end of spring (5) is held out against respectively on sealed separation portion (21) and nut (22).
5. mechanical expansion shaft according to claim 4, it is characterised in that：The sealed separation portion (21) is integrally fixed at mandrel
(2) the concentric annulus on and with mandrel (2), all side surfaces are equipped with seal groove (23), be equipped in the seal groove (23) with
The close-connected sealing ring of axis body (1) inner wall (24).
6. mechanical expansion shaft according to claim 4, it is characterised in that：The other end of the sliding block (4) of two cavitys (3)
The inner end that end face is all provided with sealed separation portion (21) or main axis of dilatation spindle nose (9) fluted, in the groove and respective cavities (3) is total
With the composition air cavity (7).
7. according to claims 1 or 2 or 3 or 5 or 6 mechanical expansion shafts, it is characterised in that：The swollen key (6) is rubber key.
8. mechanical expansion shaft according to claim 7, it is characterised in that：Blade (61) is additionally provided on the swollen key (6), it is described
Blade (61) covers the gap between swollen key (6) and swollen key (6) and axis body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820381145.4U CN207989516U (en) | 2018-03-21 | 2018-03-21 | A kind of mechanical expansion shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820381145.4U CN207989516U (en) | 2018-03-21 | 2018-03-21 | A kind of mechanical expansion shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207989516U true CN207989516U (en) | 2018-10-19 |
Family
ID=63827589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820381145.4U Active CN207989516U (en) | 2018-03-21 | 2018-03-21 | A kind of mechanical expansion shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207989516U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109573745A (en) * | 2019-01-21 | 2019-04-05 | 广东基泰智能设备有限公司 | A kind of mechanical expansion shaft for retractable volume equipment |
| CN110815363A (en) * | 2019-11-14 | 2020-02-21 | 兰泽(荆门)智能科技有限公司 | Automatic electromagnetic row-knife slitting device for edge sealing strips |
| CN113417932A (en) * | 2021-07-21 | 2021-09-21 | 燕山大学 | Angle positioning device capable of controlling circumferential rotation and axial movement of rod or shaft |
-
2018
- 2018-03-21 CN CN201820381145.4U patent/CN207989516U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109573745A (en) * | 2019-01-21 | 2019-04-05 | 广东基泰智能设备有限公司 | A kind of mechanical expansion shaft for retractable volume equipment |
| CN110815363A (en) * | 2019-11-14 | 2020-02-21 | 兰泽(荆门)智能科技有限公司 | Automatic electromagnetic row-knife slitting device for edge sealing strips |
| CN110815363B (en) * | 2019-11-14 | 2021-04-20 | 杭州瑞甲新材料科技有限公司 | Automatic electromagnetic row-knife slitting device for edge sealing strips |
| CN113417932A (en) * | 2021-07-21 | 2021-09-21 | 燕山大学 | Angle positioning device capable of controlling circumferential rotation and axial movement of rod or shaft |
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