CN206655925U - A kind of removable air-expanding shaft - Google Patents
A kind of removable air-expanding shaft Download PDFInfo
- Publication number
- CN206655925U CN206655925U CN201720395680.0U CN201720395680U CN206655925U CN 206655925 U CN206655925 U CN 206655925U CN 201720395680 U CN201720395680 U CN 201720395680U CN 206655925 U CN206655925 U CN 206655925U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- big
- air
- spindle nose
- spline
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- 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.)
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- 239000012634 fragment Substances 0.000 claims abstract description 20
- 239000004677 Nylon Substances 0.000 claims abstract description 5
- 229920001778 nylon Polymers 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 210000001331 nose Anatomy 0.000 description 16
- 239000007789 gas Substances 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 4
- 239000013536 elastomeric material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a kind of removable air-expanding shaft of field of mechanical technique, including main shaft, the right-hand member of the main shaft is connected with small spindle nose, three groups of Screw holes are laterally offered on the small spindle nose, the Screw hole is connected by Screw with main shaft, the left end of the main shaft is provided with big spindle nose, three groups of big screw holes are laterally offered on the big spindle nose, the big screw hole is connected by big screw with main shaft, belt carcass valve is longitudinally offered on the big spindle nose, the center of the big spindle nose laterally offers air channel, the air channel connects with belt carcass valve, the removable air-expanding shaft, detachable design, it is easy to repair, reduce manufacturing cost, original spring wire is replaced by shell fragment, it is easy to the reset of spline, avoid the occurrence of the sideslip of spring wire, pass through the use of nylon spline, anti-wear performance is good.
Description
Technical field
Field of mechanical technique is the utility model is related to, specially a kind of removable air-expanding shaft.
Background technology
Air-expanding shaft arrives in mechanical aspects through conventional, original one-inch air-expanding shaft used, has the following disadvantages：One
The gas axle of formula, manufacture and maintenance cost are high, the manufacturing cycle is long, quality is unstable；The spring wire of the inside is easily run out of at spline
Come, potential safety hazard be present；Because spring wire area is small, cause the spring wire after deflation easily inclined, spline can not reset completely, have
When manual operations；Spline uses elastomeric material, is not durable, therefore, we have proposed a kind of removable air-expanding shaft.
Utility model content
The purpose of this utility model is to provide a kind of removable air-expanding shaft, to solve proposed in above-mentioned background technology one
The gas axle of body formula, manufacture and maintenance cost are high, the manufacturing cycle is long, quality is unstable；The spring wire of the inside is easily run at spline
Out, potential safety hazard be present；Because spring wire area is small, cause the spring wire after deflation easily inclined, spline can not reset completely,
Sometimes it is hand-manipulated；Spline uses elastomeric material, short-life problem.
To achieve the above object, the utility model provides following technical scheme：A kind of removable air-expanding shaft, including main shaft
Body, the right-hand member of the main shaft are connected with small spindle nose, three groups of Screw holes, the Screw are laterally offered on the small spindle nose
Hole is connected by Screw with main shaft, and the left end of the main shaft is provided with big spindle nose, is laterally offered on the big spindle nose
Three groups of big screw holes, the big screw hole are connected by big screw with main shaft, and belt carcass gas is longitudinally offered on the big spindle nose
Mouth, the center of the big spindle nose laterally offer air channel, and the air channel connects with belt carcass valve, and the main shaft is left
The center at end offers air slot, and air slot connects with air channel, and the junction of the air slot and air channel is set
There is sealing ring, air bag is horizontally arranged with the main shaft, the air bag connects with air slot, and the outer wall of the main shaft is uniform
Spline is provided with, the bottom of the spline is embedded on main shaft, is respectively connected with shell fragment at left and right sides of the top of the spline, institute
The other end for stating shell fragment is connected with main shaft.
Preferably, the spline is nylon spline.
Preferably, the curved shape of the shell fragment.
Preferably, the both ends of the shell fragment are plugged with screw, the both sides of the shell fragment by screw respectively with main shaft
Connected with spline.
Compared with prior art, the beneficial effects of the utility model are：The removable air-expanding shaft, detachable design, just
In maintenance, manufacturing cost is reduced, original spring wire is replaced by shell fragment, is easy to the reset of spline, avoids the occurrence of spring wire
Sideslip is good by the use of nylon spline, anti-wear performance.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
In figure：1 main shaft, 2 small spindle noses, 3 Screw holes, 4 big spindle noses, 5 big screw holes, 6 belt carcass valves, 7 air channels, 8
Air slot, 9 sealing rings, 10 air bags, 11 splines, 12 shell fragments.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Referring to Fig. 1, the utility model provides a kind of technical scheme：A kind of removable air-expanding shaft, including main shaft 1, it is main
The right-hand member of axis body 1 is connected with small spindle nose 2, and three groups of Screw holes 3 are laterally offered on small spindle nose 2, and Screw hole 3 passes through Screw
It is connected with main shaft 1, the left end of main shaft 1 is provided with big spindle nose 4, three groups big screw hole 5 is laterally offered on big spindle nose 4, greatly
Screw hole 5 is connected by big screw with main shaft 1, and belt carcass valve 6, the center of big spindle nose 4 are longitudinally offered on big spindle nose 4
Air channel 7 laterally is offered, air channel 7 connects with belt carcass valve 6, and the center of the left end of main shaft 1 offers air slot 8,
And air slot 8 connects with air channel 7, the junction of air slot 8 and air channel 7 is provided with sealing ring 9, is laterally set on main shaft 1
Air bag 10 is equipped with, air bag 10 connects with air slot 8, and the outer wall of main shaft 1 is evenly arranged with spline 11, the bottom insertion of spline 11
Onto main shaft 1, shell fragment 12 is respectively connected with left and right sides of the top of spline 11, the other end of shell fragment 12 is connected with main shaft 1.
Wherein, spline 11 is nylon spline, increase anti-wear performance, 12 curved shape of shell fragment, increase elastic force, the two of shell fragment 12
End is plugged with screw, and the both sides of shell fragment 12 are connected with main shaft 1 and spline 11 respectively by screw.
Operation principle：By 6 external air pump of belt carcass valve, gases at high pressure enter in 6, and pressure-air is by air channel 7 and leads
Air drain 8 is entered in air bag 10, and after the air inlet of air bag 10, the air pressure in air bag 10 increases, and air bag 10 jacks up spline 11, spline 11
Band spring plate 12 moves up, and shell fragment 12 deforms upon, and produces the pressure downward to spline 11, and the spline 11 of jack-up is by the needs of outside
Fixed device sleeve is fixed, and when needing external device sleeve dismounting, slides the gaseous core on belt carcass valve 6, air bag 10
Interior gas is released by air slot 8, air channel 7 and belt carcass valve 6, and after the air pressure in air bag 10 reduces, spline 11 is by gas
The pressure of capsule 10 is less than pressure of the shell fragment 12 to spline 11, so as to which spline 11 starts to reset, when reset completely, maintenance, tears open
Lower Screw hole 3 and the Screw on big screw hole 5 and big screw, so as to which main shaft 1, small spindle nose 2 and big spindle nose 4 be split
Open.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of removable air-expanding shaft, including main shaft (1), it is characterised in that：The right-hand member of the main shaft (1) is connected with small axle
Head (2), three groups of Screw holes (3) is laterally offered on the small spindle nose (2), the Screw hole (3) passes through Screw and master
Axis body (1) connects, and the left end of the main shaft (1) is provided with big spindle nose (4), three groups are laterally offered on the big spindle nose (4)
Big screw hole (5), the big screw hole (5) are connected with main shaft (1) by big screw, longitudinally opened up on the big spindle nose (4)
There is belt carcass valve (6), the center of the big spindle nose (4) laterally offers air channel (7), the air channel (7) and belt carcass
Valve (6) connects, and the center of main shaft (1) left end offers air slot (8), and air slot (8) and air channel (7)
Connection, the air slot (8) and the junction of air channel (7) are provided with sealing ring (9), are laterally set on the main shaft (1)
There is air bag (10), the air bag (10) connects with air slot (8), and the outer wall of the main shaft (1) is evenly arranged with spline (11),
The bottom of the spline (11) is embedded on main shaft (1), and shell fragment is respectively connected with left and right sides of the top of the spline (11)
(12), the other end of the shell fragment (12) is connected with main shaft (1).
A kind of 2. removable air-expanding shaft according to claim 1, it is characterised in that：The spline (11) is nylon spline.
A kind of 3. removable air-expanding shaft according to claim 1, it is characterised in that：The curved shape of the shell fragment (12).
A kind of 4. removable air-expanding shaft according to claim 1, it is characterised in that：The equal grafting in both ends of the shell fragment (12)
There is screw, the both sides of the shell fragment (12) are connected with main shaft (1) and spline (11) respectively by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720395680.0U CN206655925U (en) | 2017-04-17 | 2017-04-17 | A kind of removable air-expanding shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720395680.0U CN206655925U (en) | 2017-04-17 | 2017-04-17 | A kind of removable air-expanding shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206655925U true CN206655925U (en) | 2017-11-21 |
Family
ID=60318886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720395680.0U Active CN206655925U (en) | 2017-04-17 | 2017-04-17 | A kind of removable air-expanding shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206655925U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2017
- 2017-04-17 CN CN201720395680.0U patent/CN206655925U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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