CN209158261U - Blind pin pin removal - Google Patents
Blind pin pin removal Download PDFInfo
- Publication number
- CN209158261U CN209158261U CN201822220981.7U CN201822220981U CN209158261U CN 209158261 U CN209158261 U CN 209158261U CN 201822220981 U CN201822220981 U CN 201822220981U CN 209158261 U CN209158261 U CN 209158261U
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- pin
- tension bar
- front tension
- collet
- hole
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Abstract
The utility model relates to mechanical erection equipment technical fields, disclose a kind of blind pin pin removal, including front tension bar, collet and central screw, the centre of front tension bar is provided with through-hole, the lower end of front tension bar is counterbore, the end of lower end counterbore is conical horn mouth, the upper end of front tension bar is counterbore, the upper end of the collet is that cylinder lower end is down big up small conical head, the upper end of collet is screw hole, lower end is hole of pulling pin, pull pin hole arm to the lower end in hole is provided with slot, when the collet cooperation is in the lower end counterbore, the tapered surface of the conical head of the collet and the conical horn mouth of front tension bar cooperate, there is a distance between the upper end of collet and the lower end counterbore base of front tension bar, central screw is set in the intermediate throughholes of the front tension bar, the lower thread of central screw and the screw hole of collet upper end cooperate, the head of central screw is located at the upper of front tension bar It holds in counterbore.The utility model is easy to use, easy to operate, will not generate damage to product ontology and pin itself during pulling pin.
Description
Technical field
The utility model relates to mechanical erection equipment technical fields, and in particular to be a kind of blind pin pin removal.
Background technique
The positioning pin on the products such as many mechanical equipment, engines all can position (we using non-porous cylindrical pin at present
Referred to as " blind pin "), there is no screw thread on this positioning pin, pin hole bottom is also without through-hole, and for blind pin in certain equipment
Surface smoothness requirements it is also very high.However in the maintenance maintenance of equipment, need to extract blind pin, it is rare on the market at present
Blind pin pin pulling tool by the way of otherwise can to product ontology generate damage and pin outer surface generate destruction, thus without
Method continues to use, and replacement pin is all had in this way after each maintenance maintenance, great waste is caused, does not meet present state
The requirement of family's environmental protection and saving.It is cumbersome, it is also necessary to which that a large amount of auxiliary tools could be completed, often one people of operator also hardly possible
To complete, or there is injured danger in use.
Such as pin removal disclosed in Chinese patent " a kind of pin removal " (publication number: CN203945321U), including drill chuck,
Connecting rod, bolt, link block, thrust roller bearing, rotating handle, screw rod, pedestal, nut, guide groove, pin, movable installation cavity.Pass through brill
Collet clamps pin, and rotation drives screw rod to move upwards, and screw rod drives link block to move upwards to drive the upward straight line of drill chuck
Movement, pin generate upward pulling force, then pin can be pulled out.Structure is complicated, operates loaded down with trivial details.
Utility model content
Purpose of the utility model is to solve the above problems, provide a kind of blind pin pin removal, easy to use, operation side
Just, damage will not be generated to product ontology and pin itself during pulling pin.
The technical scheme adopted by the utility model is that:
A kind of blind pin pin removal, characterized in that including front tension bar, collet and central screw, the centre of the front tension bar is opened
There is through-hole, the lower end of front tension bar is counterbore, and the end of lower end counterbore is conical horn mouth, and the upper end of front tension bar is counterbore, described
The upper end of collet is that cylinder lower end is down big up small conical head, and the upper end of collet is screw hole, and lower end is hole of pulling pin, hole of pulling pin
Hole arm to lower end is provided with slot, when the collet cooperation is in the lower end counterbore, the tapered surface of the conical head of the collet with
The conical horn mouth of front tension bar cooperates, and has a distance between the upper end of collet and the lower end counterbore base of front tension bar, draws before described
Central screw is set in the intermediate throughholes of bar, and the lower thread of central screw and the screw hole of collet upper end cooperate, central screw
Head is located in the upper end counterbore of front tension bar.
Further, a back stay, the outer diameter and front tension bar of the back stay are connected on the upper end counterbore of the front tension bar
Identical, the centre of back stay is provided with through-hole, and the intermediate throughholes of back stay protrude into central screw described in turn, back stay for tool
Upper end be a shaft shoulder, be arranged a sliding hammer on back stay, the internal diameter of sliding hammer is greater than back stay outer diameter and is less than shaft shoulder outer diameter.
Further, be equipped with internal screw thread in the upper end counterbore of the front tension bar, the lower end of back stay is external screw thread, front tension bar and
Back stay is together by a threaded connection.
Further, the slot on the hole arm in the hole of pulling pin is three, is evenly arranged on the periphery in hole of pulling pin.
Further, the hole of pulling pin of the collet is connected to the screw hole of collet upper end.
Further, the bevel angle of the conical head of the conical horn mouth and collet of the front tension bar is 5 ° to 10 °.
Further, the distance between lower end counterbore base of the upper end of the collet and front tension bar is 3-5mm.
Further, symmetrical two planes, the cunning are in axial direction formed on the outer diameter of the front tension bar and back stay
It hammers into shape and is equipped with prominent plane accordingly in inner hole, the two cooperation limitation front tension bar and back stay rotate in sliding hammer.
Further, circlip is set close to lower end position in the front tension bar.
Further, the head of the central screw is soket head cap screw head, and the intermediate throughholes diameter of the back stay is greater than interior
Hexagon ring.
The beneficial effects of the utility model are:
(1) damage will not be generated to product ontology and pin itself during pulling pin, it is easy to use, it is easy to operate；
(2) it only needs one people of operator that can complete, does not need other back works, operator will not be generated
Injured danger.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram of the utility model；
Attached drawing 2 is the A-A cross-sectional view of attached drawing 1；
Attached drawing 3 is the B direction view of attached drawing 1.
Label in attached drawing is respectively as follows:
1. front tension bar；2. collet；
3. central screw；4. hole of pulling pin；
5. slot；6. back stay；
7. the shaft shoulder；8. sliding hammer；
9. plane；10. circlip.
Specific embodiment
It elaborates with reference to the accompanying drawing to the specific embodiment of the blind pin pin removal of the utility model.
Referring to attached drawing 1 to 3, blind pin pin removal includes front tension bar 1, collet 2 and central screw 3, and the centre of front tension bar 1 is provided with
Through-hole, the lower end of front tension bar 1 are counterbore, and the end of lower end counterbore is conical horn mouth, and the upper end of front tension bar 1 is counterbore.
The upper end of collet 2 is that cylinder lower end is down big up small conical head, and the upper end of collet 2 is screw hole, and lower end is to pull pin
Hole 4, hole 4 of pulling pin are connected to screw hole.Pull pin hole arm to the lower end in hole 4 is opened there are three slot 5, and three slots 5 are evenly arranged on hole 4 of pulling pin
Periphery on.When the cooperation of collet 2 is in the counterbore of lower end, the tapered surface of the conical head of collet 2 and the conical horn mouth of front tension bar 1
Cooperation, about 3-5mm between the upper end of collet 2 and the lower end counterbore base of front tension bar 1.In the intermediate throughholes of front tension bar 1 in setting
Heart screw 3, the lower thread of central screw 3 and the screw hole of 2 upper end of collet cooperate, and the head of central screw 3 is located at front tension bar 1
In the counterbore of upper end, the head of central screw 3 is soket head cap screw head.
A back stay 6 is connected on the upper end counterbore of front tension bar 1, is equipped with internal screw thread, post-tensioning in the upper end counterbore of front tension bar 1
The lower end of bar 6 is external screw thread, and front tension bar 1 and back stay 6 are together by a threaded connection.The outer diameter of back stay 6 and 1 phase of front tension bar
Together, the centre of back stay 6 is provided with through-hole, and intermediate throughholes diameter is greater than the Hexagon hole on the head of central screw 3.In back stay 6
Between through-hole for tool protrude into rotation center screw 3, the upper end of back stay 6 is a shaft shoulder 7, and a cunning is arranged on back stay 6
The internal diameter of hammer 8, sliding hammer 8 is greater than 6 outer diameter of back stay and is less than 7 outer diameter of the shaft shoulder.
The bevel angle of the conical head of the conical horn mouth and collet 2 of front tension bar 1 is 5 ° to 10 °.
Symmetrical two planes 9 are in axial direction formed on the outer diameter of front tension bar 1 and back stay 6, are equipped in 8 inner hole of sliding hammer
Prominent plane accordingly, the two cooperation limitation front tension bar 1 and back stay 6 rotate in sliding hammer 8.Front tension bar 1 is set close to lower end position
Set circlip 10.Circlip 10 prevents from generating collision with blind pin for limiting sliding hammer 8.
The course of work of the utility model is the collet 2 for selecting suitable dimension, and collet 2 is set to the lower end of front tension bar 1
It is by central screw 3 that collet 2 is fixed in counterbore, collet 2 is inserted on the blind pin of equipment, by protruding into 6 through-hole of back stay
Wrench, rotation center screw 3, due to the presence of the conical surface and gap, when collet 2 pulls up, the hole 4 of pulling pin of collet 2
Internal diameter is retracted, and blind lock is gripped in hole 4 of pulling pin.At this moment, by pushing up sliding hammer 8, pin removal is hammered, blind pin is pulled out
Out.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
Art personnel can also make several improvements and modifications without departing from the principle of this utility model, these improvements and modifications
Also it should be regarded as the protection scope of the utility model.
Claims (10)
1. a kind of blind pin pin removal, it is characterised in that: including front tension bar, collet and central screw, the centre of the front tension bar is opened
There is through-hole, the lower end of front tension bar is counterbore, and the end of lower end counterbore is conical horn mouth, and the upper end of front tension bar is counterbore, described
The upper end of collet is that cylinder lower end is down big up small conical head, and the upper end of collet is screw hole, and lower end is hole of pulling pin, hole of pulling pin
Hole arm to lower end is provided with slot, when the collet cooperation is in the lower end counterbore, the tapered surface of the conical head of the collet with
The conical horn mouth of front tension bar cooperates, and has a distance between the upper end of collet and the lower end counterbore base of front tension bar, draws before described
Central screw is set in the intermediate throughholes of bar, and the lower thread of central screw and the screw hole of collet upper end cooperate, central screw
Head is located in the upper end counterbore of front tension bar.
2. blind pin pin removal according to claim 1, it is characterised in that: connect one on the upper end counterbore of the front tension bar
The outer diameter of back stay, the back stay is identical as front tension bar, and the centre of back stay is provided with through-hole, and the intermediate throughholes of back stay are used for
Tool protrudes into central screw described in turn, and the upper end of back stay is a shaft shoulder, is arranged a sliding hammer on back stay, sliding hammer it is interior
Diameter is greater than back stay outer diameter and is less than shaft shoulder outer diameter.
3. blind pin pin removal according to claim 2, it is characterised in that: be equipped with interior spiral shell in the upper end counterbore of the front tension bar
The lower end of line, back stay is external screw thread, and front tension bar and back stay are together by a threaded connection.
4. blind pin pin removal according to claim 1, it is characterised in that: the slot on the hole arm in the hole of pulling pin is three
It is a, it is evenly arranged on the periphery in hole of pulling pin.
5. blind pin pin removal according to claim 1, it is characterised in that: the spiral shell in the pull pin hole and collet upper end of the collet
Hole connection.
6. blind pin pin removal according to any one of claim 1 to 5, it is characterised in that: the taper loudspeaker of the front tension bar
The bevel angle of the conical head of mouth and collet is 5 ° to 10 °.
7. blind pin pin removal according to any one of claim 1 to 5, it is characterised in that: the upper end of the collet is with before
The distance between lower end counterbore base of pull rod is 3-5mm.
8. the blind pin pin removal according to any one of claim 2 to 3, it is characterised in that: the front tension bar and back stay
Outer diameter in axial direction form symmetrical two planes, prominent plane accordingly, the two cooperation are equipped in the sliding hammer inner hole
Limitation front tension bar and back stay rotate in sliding hammer.
9. the blind pin pin removal according to any one of claim 2 to 3, it is characterised in that: in the front tension bar under
Circlip is arranged in end position.
10. the blind pin pin removal according to any one of claim 2 to 3, it is characterised in that: the head of the central screw
Intermediate throughholes diameter for soket head cap screw head, the back stay is greater than Hexagon hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822220981.7U CN209158261U (en) | 2018-12-27 | 2018-12-27 | Blind pin pin removal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822220981.7U CN209158261U (en) | 2018-12-27 | 2018-12-27 | Blind pin pin removal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209158261U true CN209158261U (en) | 2019-07-26 |
Family
ID=67345000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822220981.7U Active CN209158261U (en) | 2018-12-27 | 2018-12-27 | Blind pin pin removal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209158261U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109397186A (en) * | 2018-12-27 | 2019-03-01 | 无锡哨东自动化技术有限公司 | Blind pin pin removal |
-
2018
- 2018-12-27 CN CN201822220981.7U patent/CN209158261U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109397186A (en) * | 2018-12-27 | 2019-03-01 | 无锡哨东自动化技术有限公司 | Blind pin pin removal |
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