CN206048078U - A kind of blind hole bushing pulling off device - Google Patents
A kind of blind hole bushing pulling off device Download PDFInfo
- Publication number
- CN206048078U CN206048078U CN201620944283.XU CN201620944283U CN206048078U CN 206048078 U CN206048078 U CN 206048078U CN 201620944283 U CN201620944283 U CN 201620944283U CN 206048078 U CN206048078 U CN 206048078U
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- pull bar
- bushing
- sleeve
- drawing section
- blind hole
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Abstract
This utility model discloses a kind of blind hole bushing pulling off device, including tightening nut, pull bar, sleeve and fastening bolt；Pull bar upper end is connected through sleeve with nut, and drawing section of the pull bar bottom for bifurcated, drawing section external diameter are slightly less than bushing inner diameter to be torn open, and termination is formed with step raised laterally；Fixing hole is provided with the middle part of sleeve, fastening bolt is fixed on the fixing hole of sleeve through the gap in the middle of pull bar drawing section.This device ceaselessly gives the power that pull bar is tensed upwards in the way of screwfeed using tightening nut, and pull bar lower end is tightened up, ingenious to realize pulling out bushing and not hindering the purpose of datum hole.Fastening bolt and clamp nut are used for steady brace, prevent during screw thread exerts a force, and pull bar lower end does not tense bushing causes pull bar skidding to rotate with tightening nut.Adjustment cushion block is in cylinder, and diameter is slightly less than pull bar internal diameter, interior after the stress of pull bar drawing end during preventing from exerting a force to receive, it is impossible to buckle bushing lower surface.This utility model is by changing adjustment cushion block outside dimension, the bushing of the detachable adjacent plurality of specifications internal diameter of set of device；It is easy to use, damaging substrate hole wall is difficult in unloading process, is adapted to produce manufacture process in enormous quantities.
Description
Technical field
This utility model is related to a kind of blind hole bushing pulling off device.It is common hole assembly manipulation side that shrinkage method is sent out and installs bushing
Method, the principle expanded with heat and contract with cold using material shrink liner size（Interference fit is changed into into gap cooperation）, then enter luggage
Match somebody with somebody.It is typically due to bushing long-time and uses the rear reason such as easy to wear, replacement probability is higher.Blind hole retracts difficulty more for bushing
Greatly, the common method for retracting blind hole bushing is mainly by various instruments and self-made tool.This utility model is served as a contrast to solve blind hole
Set retracts problem there is provided a kind of new approaches and method.
Background technology
It is common hole assembly manipulation method that shrinkage method is sent out and installs bushing, and the principle expanded with heat and contract with cold using material makes bushing chi
Very little contraction（Interference fit is changed into into gap cooperation）, then assembled.Be typically due to bushing long-time use it is rear easy to wear etc.
Reason, replacement probability are higher, blind hole for bushing to retract difficulty bigger.
The content of the invention
The purpose of this utility model is to provide a kind of blind hole bushing pulling off device, easily efficiently retracts blind hole bushing, while
Matrix hole wall is injured in avoiding unloading process.
The technical solution of the utility model：A kind of blind hole bushing pulling off device, it is characterised in that including tightening nut, draw
Bar, sleeve and fastening bolt；Pull bar upper end is connected through sleeve with nut, drawing section of the pull bar bottom for bifurcated, outside drawing section
Footpath is slightly less than bushing inner diameter to be torn open, and termination is formed with step raised laterally；Fixing hole is provided with the middle part of sleeve, fastening bolt is passed through
Gap in the middle of pull bar drawing section, is fixed on the fixing hole of sleeve.
The pull bar lower end is provided with adjustment cushion block, and in cylinder, diameter is slightly less than the interior of pull bar drawing section to adjustment cushion block
Footpath.
Pad is provided between the nut and sleeve.
The outer surface of the pull bar drawing section is the conical surface, is opened laterally under free state naturally.
This utility model is to move upwards to give bushing one power upwards on blind hole bushing using device spiral, so as to
Bushing is pulled out from datum hole by realization.
This device ceaselessly gives the power that pull bar is tensed upwards, pull bar lower end in the way of screwfeed using tightening nut
Tighten up, it is ingenious to realize pulling out bushing and not hindering the purpose of datum hole.Fastening bolt and clamp nut are used for steady brace, prevent
During screw thread force, pull bar lower end does not tense bushing causes pull bar skidding to rotate with tightening nut.Adjustment cushion block is in circle
Cylinder, diameter are slightly less than pull bar internal diameter, and effect is to prevent from during force receiving in after the stress of pull bar drawing end, it is impossible to buckle bushing
Lower surface.
Advantage of the present utility model has：
The cushion block different by changing adjustment external diameter, the bushing of the detachable adjacent plurality of specifications internal diameter of set of device.
It is easy to use, damaging substrate hole wall is difficult in unloading process, is adapted to produce manufacture process in enormous quantities.
Description of the drawings
Fig. 1 is the schematic diagram of this utility model device
Fig. 2 is A-A profiles of Fig. 1
Fig. 3 is the structure decomposition figure of blind hole bushing pulling off device.
In figure：1 tightening nut, 2 pad, 3 pull bar, 4 sleeve
5 fastening bolt, 6 clamp nut 7 adjusts cushion block.
Specific embodiment
This utility model is described in further detail below in conjunction with accompanying drawing.
See Fig. 1 to Fig. 3, this device is adjusted by tightening nut 1, pad 2, pull bar 3, sleeve 4, fastening bolt 5, clamp nut 6
Whole cushion block 7 is constituted.3 one end of pull bar is drawing section, and external diameter is slightly less than bushing inner diameter to be torn open, and outer surface is the conical surface, under free state
Naturally opening laterally, there is step termination, during for exerting a force, pulling up clamping hub；Using tightening nut in the way of screwfeed
The power that pull bar is tensed upwards is given ceaselessly, pull bar lower end is tightened up, it is ingenious to realize pulling out bushing and not hindering the purpose of datum hole.Tightly
Fixing bolt 5 and clamp nut 6 are used for steady brace 3, prevent during screw thread exerts a force, and 3 lower end of pull bar does not tense bushing to cause
Pull bar 3 skids and rotates with tightening nut 1.In cylinder, diameter is slightly less than pull bar internal diameter to adjustment cushion block 7, and effect is to prevent
It is interior after 3 drawing end stress of pull bar during force to receive, it is impossible to buckle bushing lower surface.
Above example is described to this utility model and embodiments thereof, and the description does not have restricted, actual knot
Structure is not limited thereto.So, if one of ordinary skill in the art is enlightened by which, ancestor is being created without departing from this utility model
In the case of purport, the frame mode similar to the technical scheme and embodiment are designed without creative, all should belong to this reality
With new protection domain.
Claims (4)
1. a kind of blind hole bushing pulling off device, it is characterised in that including tightening nut, pull bar, sleeve and fastening bolt；On pull bar
End is connected through sleeve with nut, and drawing section of the pull bar bottom for bifurcated, drawing section external diameter are slightly less than bushing inner diameter to be torn open, termination
It is formed with step raised laterally；Fixing hole is provided with the middle part of sleeve, fastening bolt is through the gap in the middle of pull bar drawing section, fixed
On the fixing hole of sleeve.
2. blind hole bushing pulling off device according to claim 1, it is characterised in that：Pull bar lower end is provided with adjustment cushion block,
In cylinder, diameter is slightly less than the internal diameter of pull bar drawing section to adjustment cushion block.
3. blind hole bushing pulling off device according to claim 1, it is characterised in that：It is provided between the nut and sleeve
Pad.
4. blind hole bushing pulling off device according to claim 1, it is characterised in that：The outer surface of the pull bar drawing section is
The conical surface, opens under free state naturally laterally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620944283.XU CN206048078U (en) | 2016-08-25 | 2016-08-25 | A kind of blind hole bushing pulling off device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620944283.XU CN206048078U (en) | 2016-08-25 | 2016-08-25 | A kind of blind hole bushing pulling off device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206048078U true CN206048078U (en) | 2017-03-29 |
Family
ID=58381794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620944283.XU Active CN206048078U (en) | 2016-08-25 | 2016-08-25 | A kind of blind hole bushing pulling off device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206048078U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107486816A (en) * | 2017-08-18 | 2017-12-19 | 中国航发贵州黎阳航空动力有限公司 | A kind of method and device for taking out compressor pneumatic tray blind hole pin |
| CN107984427A (en) * | 2017-12-01 | 2018-05-04 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of aero-engine is with disassembling bushing device and application method in blind hole |
| CN111360751A (en) * | 2020-03-12 | 2020-07-03 | 成都飞机工业（集团）有限责任公司 | Method for pulling out inner embedded bushing |
| CN111660258A (en) * | 2020-06-19 | 2020-09-15 | 赵德运 | Device is got to bush clamp |
| CN113146542A (en) * | 2021-04-21 | 2021-07-23 | 广州市嘉特斯机电制造有限公司 | Blind hole bushing pulling-out tool and bushing pulling-out method |
| CN113427435A (en) * | 2021-06-30 | 2021-09-24 | 东风商用车有限公司 | Cylinder body blind hole bushing pulling-out device and using method thereof |
-
2016
- 2016-08-25 CN CN201620944283.XU patent/CN206048078U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107486816A (en) * | 2017-08-18 | 2017-12-19 | 中国航发贵州黎阳航空动力有限公司 | A kind of method and device for taking out compressor pneumatic tray blind hole pin |
| CN107984427A (en) * | 2017-12-01 | 2018-05-04 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of aero-engine is with disassembling bushing device and application method in blind hole |
| CN111360751A (en) * | 2020-03-12 | 2020-07-03 | 成都飞机工业（集团）有限责任公司 | Method for pulling out inner embedded bushing |
| CN111660258A (en) * | 2020-06-19 | 2020-09-15 | 赵德运 | Device is got to bush clamp |
| CN111660258B (en) * | 2020-06-19 | 2021-04-13 | 胡彩云 | Device is got to bush clamp |
| CN112975842A (en) * | 2020-06-19 | 2021-06-18 | 胡彩云 | Clamping device for clamping bushing |
| CN113146542A (en) * | 2021-04-21 | 2021-07-23 | 广州市嘉特斯机电制造有限公司 | Blind hole bushing pulling-out tool and bushing pulling-out method |
| CN113427435A (en) * | 2021-06-30 | 2021-09-24 | 东风商用车有限公司 | Cylinder body blind hole bushing pulling-out device and using method thereof |
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