CN204019455U - A kind of pin removal - Google Patents
A kind of pin removal Download PDFInfo
- Publication number
- CN204019455U CN204019455U CN201420461199.3U CN201420461199U CN204019455U CN 204019455 U CN204019455 U CN 204019455U CN 201420461199 U CN201420461199 U CN 201420461199U CN 204019455 U CN204019455 U CN 204019455U
- Authority
- CN
- China
- Prior art keywords
- pin
- pull bar
- turn pull
- load sleeve
- attachment screw
- Prior art date
- 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.)
- Expired - Fee Related
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- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The utility model provides a kind of pin removal, and it comprises load sleeve, turn pull bar and attachment screw; Described load sleeve is provided with internal thread; Described turn pull bar by there is the externally threaded body of rod and force section forms, described turn pull bar with between load sleeve for screw thread pair is connected; Hollow channel is provided with in described turn pull bar; Described attachment screw by described hollow channel, inserts from described turn pull bar one end and stretches out from the other end, is connected to wait to pull pin and between the end of described turn pull bar.Adopt the utility model, its structure is simple, makes easily, easy to use; Volume is little, uses with the obvious advantage at small space; The scope of application is large, according to dimensions tapped to be pulled pin, can select suitable attachment screw, be applicable to any at right angle setting, different size wait pull pin.
Description
Technical field
The utility model relates to the hand-operated tools technical field of field-strip, particularly relates to a kind of pin removal.
Background technology
On the technological equipments such as all kinds of fixture, mould or equipment, in order to ensure the positioning precision between parts, need to adopt tapped pin to position connection, but pin is generally installed in blind hole, pin is needed to extract when considering maintenance, at present, normally used pin pulling tool comprises:
(1) impacting type pin removal, such as: it is fixed with impact block and the end rod member that can be threaded with the screw on pin roll end face, during use, Rod end is threaded fixing with the screw on pin roll end face, outwards knock impact block, bearing pin is extracted by the impact utilizing impact block outside.But the method is undertaken knocking operation by manually exerting a force, use and comparatively bother, be subject to operating space restriction and need multiple impact, labour intensity is large, easily injures staff by a crashing object, not only produces noise pollution during operation, but also can have a strong impact on by machine, the structure of mould and the precision of quality and ultraprecise part of keeping in repair, cause unnecessary loss, serviceability is not good, constrains the demand in market.
(2) screw-type pin removal, such as: Chinese patent 200720085300.X discloses " a kind of Simple screw-type pin removal ", it is the mode being increased feather key by nut, screw rod, be the rectilinear motion of screw rod by the converting rotary motion of nut, applying less pulling force can extract pin.Although it has, efficiency of pulling pin is high, simple to operate, laborsaving, the feature such as security is good of pulling pin, and this pin pulling device structure is complicated, thus makes and use inconvenient.
Summary of the invention
Technical problem to be solved in the utility model is, provide a kind of structure simple, make pin removal easy, easy to use.
In order to solve the problems of the technologies described above, the utility model provides a kind of pin removal, and it comprises load sleeve, turn pull bar and attachment screw; Described load sleeve is provided with internal thread; Described turn pull bar by there is the externally threaded body of rod and force section forms, described turn pull bar with between load sleeve for screw thread pair is connected; Hollow channel is provided with in described turn pull bar; Described attachment screw by described hollow channel, inserts from described turn pull bar one end and stretches out from the other end, is connected to wait to pull pin and between the end of described turn pull bar.
As the improvement of technique scheme, external diameter to be pulled pin described in described load sleeve diameter is greater than.
As the improvement of technique scheme, thread between described load sleeve and turn pull bar is apart from the thread distance being greater than described attachment screw and between waiting to pull pin.
As the improvement of technique scheme, described load sleeve and the rotational direction between turn pull bar and described attachment screw and waiting pull pin between rotational direction contrary.
As the improvement of technique scheme, described load sleeve and described force section all have spanner position, for using spanner reinforcing operation.
Implement a kind of pin removal of the present utility model, compared with prior art, there is following beneficial effect: it is point centered by waiting to pull pin, be flexibly connected by the screw-type of load sleeve with turn pull bar, the screw of turn pull bar is converted into rectilinear motion, thus produces pulling force and will wait to pull pin and quick and portably extract, the pulling force of generation is basic load, but not shock loading, noiselessness, friction, laborsavingly to save time, steady safety; Meanwhile, the utility model is primarily of two parts (i.e. load sleeve and turn pull bar) composition, and structure is simple, makes easily, easy to use; Volume is little, uses with the obvious advantage at small space; The scope of application is large, according to dimensions tapped to be pulled pin, can select suitable attachment screw, be applicable to any at right angle setting, different size wait pull pin.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, be briefly described to the accompanying drawing of embodiment below.
Fig. 1 is the structural representation that the utility model provides an a kind of embodiment of pin removal;
Fig. 2 is the structural representation that Fig. 1 embodiment connects in time pulling pin;
Fig. 3 is the structural representation that Fig. 1 embodiment extracts in time pulling pin.
Detailed description of the invention
Detailed description of the invention of the present utility model is further described below in conjunction with accompanying drawing.
As shown in Figures 1 to 3, an embodiment of the present utility model, this pin removal comprises load sleeve 1, turn pull bar 2 and attachment screw 3, and the overall metal material that adopts makes, and its length is 80 millimeters, about 25 millimeters, all footpaths; Described load sleeve 1 is provided with internal thread, in hex nut shape; Described turn pull bar 2 by there is the externally threaded body of rod 21 and force section 22 forms, in hex screw shape, described turn pull bar 2 with between load sleeve 1 for screw thread pair is connected; Hollow channel 23 is provided with in described turn pull bar 2; Described attachment screw 3, by described hollow channel 23, inserts from described turn pull bar 2 one end (i.e. force section 22) and stretches out from the other end (i.e. the body of rod 21 end), being connected to and waiting to pull pin between 4 and the end of described turn pull bar 2.Wherein, wait to pull pin 4 for cylindrical pin with internal thread, corresponding attachment screw 3 is soket head cap screw.Visible, the utility model is mainly made up of two parts (i.e. load sleeve 1 and turn pull bar 2), and its structure is simple, makes easily, easy to use; Volume is little, uses with the obvious advantage at small space; The scope of application is large, according to the dimensions of cylindrical pin with internal thread 4, can select suitable attachment screw 3, be applicable to any at right angle setting, different size wait pull pin.
During concrete enforcement, directly utilize screw thread pair to make load sleeve 1 and turn pull bar 2, form the labor-saving structure that a set of screw-type is flexibly connected; Attachment screw 3 by hollow channel 23 by turn pull bar 2 with wait 4 connections of pulling pin, workpiece 5 surface is close to by load sleeve 1, by rotating turn pull bar 2, screw is converted into rectilinear motion, thus produce pulling force and will wait to pull pin and 4 quick and portably to extract, workpiece separation.Pull pin in process, because produced pulling force is basic load, but not shock loading, thus realize work noiselessness, friction, laborsavingly to save time, steady safety, little to pin removal body, attachment screw 3,4 damages of waiting to pull pin, long service life.
More preferably, wait 4 external diameters of pulling pin described in described load sleeve 1 internal diameter is greater than, 4 to be brought in load sleeve 1 to guarantee to wait to pull pin, enable mechanism's normal operation, the cylindrical pin with internal thread nail puller simultaneously meeting the various diameter specifications of below load sleeve 1 internal diameter goes out.
Owing to considering that frictional force between attachment screw 3 head and turn pull bar 2 end causes screw 3 to rotate time excessive, make screw 3 and wait to pull pin to occur between 4 to loosen or tension and affect effect of pulling pin, therefore, during design screw thread pair, thread between described load sleeve 1 and turn pull bar 2 is apart from being greater than described attachment screw 3 and waiting the thread distance of pulling pin between 4, namely turn pull bar 2 should be greater than attachment screw 3 relative to waiting the 4 rectilinear motion distances often turning around produced of pulling pin relative to the rectilinear motion distance that load sleeve 1 often turns around produced, thus can effectively avoid attachment screw 3 with the synchronized rotation of turn pull bar 2, efficiency of pulling pin can be improved again.Further, described load sleeve 1 is with the rotational direction between turn pull bar 2 and described attachment screw 3 and wait that the rotational direction of pulling pin between 4 is contrary, in an embodiment, turn pull bar 2 is that dextrorotation is produced, attachment screw 3 is left-handed producing, in the process of pulling pin, attachment screw only can be more and more tighter, ensure that attachment screw 3 can not rotate with turn pull bar 2 and loosens and run out of.
More preferably, described load sleeve 1 and described force section 22 all have spanner position, and for using spanner reinforcing operation, in an embodiment, the external structure of this spanner position is six angled construction, so that spanner fastens, and handled easily.
Above disclosedly be only preferred embodiment of the present utility model, certainly can not limit the interest field of the utility model with this, therefore according to the equivalent variations that the utility model claim is done, still belong to the scope that the utility model is contained.
Claims (5)
1. a pin removal, is characterized in that, comprises load sleeve, turn pull bar and attachment screw;
Described load sleeve is provided with internal thread;
Described turn pull bar by there is the externally threaded body of rod and force section forms, described turn pull bar with between load sleeve for screw thread pair is connected;
Hollow channel is provided with in described turn pull bar;
Described attachment screw by described hollow channel, inserts from described turn pull bar one end and stretches out from the other end, is connected to wait to pull pin and between the end of described turn pull bar.
2. pin removal as claimed in claim 1, is characterized in that, external diameter to be pulled pin described in described load sleeve diameter is greater than.
3. pin removal as claimed in claim 1, is characterized in that, the thread between described load sleeve and turn pull bar is apart from the thread distance being greater than described attachment screw and between waiting to pull pin.
4. pin removal as claimed in claim 1, is characterized in that, described load sleeve and the rotational direction between turn pull bar and described attachment screw and waiting pull pin between rotational direction contrary.
5. pin removal as claimed in claim 1, it is characterized in that, described load sleeve and described force section all have spanner position, for using spanner reinforcing operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420461199.3U CN204019455U (en) | 2014-08-15 | 2014-08-15 | A kind of pin removal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420461199.3U CN204019455U (en) | 2014-08-15 | 2014-08-15 | A kind of pin removal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204019455U true CN204019455U (en) | 2014-12-17 |
Family
ID=52059363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420461199.3U Expired - Fee Related CN204019455U (en) | 2014-08-15 | 2014-08-15 | A kind of pin removal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204019455U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106239422A (en) * | 2016-08-09 | 2016-12-21 | 哈尔滨汽轮机厂有限责任公司 | Pin dismounting method when a kind of steam turbine stator portion set is reprocessed |
| CN107175614A (en) * | 2017-06-07 | 2017-09-19 | 中国恩菲工程技术有限公司 | Core apparatus of drawing guns for changing rifle core |
| CN112630003A (en) * | 2020-12-21 | 2021-04-09 | 浙江工业大学 | Safety plug pin plugging device in large-scale multifunctional electro-hydraulic servo structure test system |
-
2014
- 2014-08-15 CN CN201420461199.3U patent/CN204019455U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106239422A (en) * | 2016-08-09 | 2016-12-21 | 哈尔滨汽轮机厂有限责任公司 | Pin dismounting method when a kind of steam turbine stator portion set is reprocessed |
| CN107175614A (en) * | 2017-06-07 | 2017-09-19 | 中国恩菲工程技术有限公司 | Core apparatus of drawing guns for changing rifle core |
| CN112630003A (en) * | 2020-12-21 | 2021-04-09 | 浙江工业大学 | Safety plug pin plugging device in large-scale multifunctional electro-hydraulic servo structure test system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20160815 |