CN201329493Y - Blind hole sleeve puller - Google Patents
Blind hole sleeve puller Download PDFInfo
- Publication number
- CN201329493Y CN201329493Y CNU2009201261361U CN200920126136U CN201329493Y CN 201329493 Y CN201329493 Y CN 201329493Y CN U2009201261361 U CNU2009201261361 U CN U2009201261361U CN 200920126136 U CN200920126136 U CN 200920126136U CN 201329493 Y CN201329493 Y CN 201329493Y
- Authority
- CN
- China
- Prior art keywords
- cover body
- blind hole
- screw mandrel
- pulls out
- out cover
- 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 discloses a blind hole sleeve puller comprising a cylindrical sleeve pulling body, a pulling claw is arranged at the front end of the sleeve pulling body; characterized in that: inner screw threads are arranged on the inner cavity of the sleeve pulling body, the diameter of the lead screw is same as the diameter of the inner cavity of the sleeve pulling body, external screw threads of the lead screw surface are matched with inner screw threads of the inner cavity of the sleeve pulling body, the lead screw can be rotated into the inner cavity of the sleeve pulling body; at least one slot for spanner is arranged on the rear end of the sleeve pulling body; at least one long slot is arranged on the cylinder wall of the front section of the pulling claw. The sleeve puller of the utility model can ensure the completeness of the workpiece, the structure is simple, the volume is small, the carrying is convenient, the different types can be configured according to the blind holes with different sizes, especially the bush can be taken out from the small-sized blind hole.
Description
Technical field
The utility model relates to a kind of extracting tool of parts, is specifically related to a kind ofly can guarantee the intact blind hole sleeve puller easy to use of workpiece.
Background technology
In machinery maintenance, because the parts that are installed in the circular hole mostly adopt connection more excessively to cooperate, some even employing interference fit are to improve the reliability that connects, as the revolution parts on a lot of plant equipment, connect very tight, and if be installed in for a long time in the circular hole, parts can hold tightly together because of corrosion and parent, so in maintenance process, the situation that is difficult to dismantle can often occur.
Dismounting bearing method is to open bearing (ball) cover in traditional hole, with copper rod it is got, or with universal fixturing (drawing horse etc.) bearing is pulled out, and this kind method can be held at the structure that bearing (ball) cover is arranged or dead eye under the situation of market universal fixturing and uses.If can not hold under the situation of market universal fixturing at blind hole structure that does not have bearing (ball) cover or dead eye, the dismounting difficulty can produce fatal influence to parts, even parent is scrapped, and causes enormous economic loss; The anchor clamps dismounting parts of the use activity that also has, by with anchor clamps (drawing horse etc.) lining or bearing outer ring outer wall clamp, it is extracted in blind hole, be the floating holder of the draw-off gear of CN201042719 as publication number, it clamps lining by jaw, it is extracted again.But need very big pulling force when this device uses, and for some small-sized linings, often excessive because of the anchor clamps volume, device can not extend in the blind hole, can't use; For some professional drawbench, because of its complex structure, inconvenience are carried, and cost an arm and a leg, cause such instrument to be popularized.Particularly at the higher axle journal of required precision, as the dismounting of oil cylinder cover fixing on the plunger-type fuel pump pump housing, knock, stubbornly powerful measure such as squeeze if adopt, be easy to damage parts, and operating efficiency is too low; If use general drawbench, but usually excessive because of device volume, can't put to good use, these all are urgent problems in the machinery maintenance process.
The utility model content
Damage parts easily at drawing device of the prior art, volume is too big is inconvenient to use, complex structure is not easy to carry, the deficiency that costs an arm and a leg etc., of the present utility modelly provide a kind of simple in structure, easy to carry, the intact of workpiece can be guaranteed, and the blind hole sleeve puller of lining can be from small-sized blind hole, taken out.
The technical solution of the utility model is: a kind of blind hole sleeve puller, comprise the cover body that pulls out cylindraceous, and the front end that pulls out the cover body is provided with pusher dog; It is characterized in that: pull out the cover chamber body and be provided with internal thread, screw mandrel is identical with the intracavity diameter that pulls out the cover body, and the external screw thread on screw mandrel surface matches with the internal thread that pulls out the cover chamber body, and screw mandrel can screw in the inner chamber that pulls out the cover body; Rear end pulling out the cover body is provided with at least one spanner groove; The cylindrical wall of pusher dog leading portion is provided with at least one elongated slot.
Further feature is: described elongated slot is four sections, evenly distributes on the cylindrical wall that pulls out the cover body.
Described spanner groove is four that are symmetrically distributed, and is corresponding with the position of four elongated slots.
With respect to prior art, the utlity model has following advantage:
When 1, using sleeve puller to take out lining, be to hook lining internally, in withdrawal process, parts do not had wearing and tearing, also be clipped in the lining oral area, can guarantee that workpiece is intact without anchor clamps;
2, simple in structure, volume is little, is easy to carry, and can particularly can take out lining from small-sized blind hole according to the different model of blind hole configuration of different sizes, has increased the precision of operation;
3, screw mandrel imposes reverse active force by pushing against the blind hole bottom after being threaded into to pusher dog, and is more laborsaving during operation, also do not need to take too big space.
Description of drawings
Fig. 1 is the structure cutaway view of blind hole sleeve puller of the present utility model when operation;
Fig. 2 pulls out cover main body structure schematic diagram for blind hole sleeve puller of the present utility model;
Among the figure, the 1-lining, 2-workpiece, 3-pull out the cover body, 4-pusher dog, 5-screw mandrel, 6-spanner groove, 7-cover hook seam, 8-circumferential groove, 9-elongated slot, 10-screw mandrel square head;
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Blind hole sleeve puller of the present utility model comprises the cover body 3 that pulls out cylindraceous, and the front end that pulls out cover body 3 is provided with pusher dog 4, and the inwall that pulls out cover body 3 inner chambers is provided with internal thread, and the rear end of pulling out cover body 3 is provided with cover hook seam 7; Screw mandrel 5 for and pull out the identical cylinder of intracavity diameter of cover body 3, the external screw thread on screw mandrel 5 surfaces matches with the internal thread that pulls out cover body 3 inner chambers, screw mandrel 5 can screw in and pull out the inner chamber that overlaps body 3.In the rear end of pulling out cover body 3, be provided with at least one spanner with groove 6, during work spanner is snapped in spanner with in the groove 6, will pull out cover body 3 chuckings with spanner, prevent to pull out cover body 3 and rotate.Stage casing pulling out cover body 3 is provided with circumferential groove 8, pulls out the wall thickness in the stage casing of cover body 3 with minimizing, possesses the certain elastic deformation ability, and the degree of depth of circumferential groove 8 should not influence the screw thread on pusher dog 3 internal chamber walls.
Be provided with at least one segment length's groove 9 at the leading portion that pulls out cover body 3, the elongated slot 9 shown in the figure is four sections, evenly distributes on the cylindrical wall that pulls out cover body 3, and the leading portion that pulls out cover body 3 is divided into four.During installation, the leading portion that pulls out cover body 3 is squeezed in the workpiece 2 along workpiece 2 axis, the leading portion of cover body 3 is pulled out in extruding, and the width of elongated slot 9 shortens, and four pusher dogs 4 that pull out cover body 3 are inwardly shortened, and the pusher dog 4 that pulls out cover body 3 front ends can be stretched in the endoporus of lining 1.
Being arranged on the spanner that pulls out cover body 3 rear portions is symmetrical one or four with groove 6, evenly is provided with according to circumference Zhou Fangxiang on cylinder; Four spanners can be corresponding with the position of four elongated slots 9 with groove 6 with 6, four spanners of groove in this way.
Be provided with screw mandrel square head 10 in the rear end of screw mandrel 5, screw mandrel square head 10 is connected with screw mandrel 5 or is made as one, is convenient to spanner or other tool holding screw mandrels 5 screw mandrel 5 to be rotated.
At the lining 1 of different sizes, can dispose the blind hole sleeve puller of different model, now choose most preferred embodiment and describe.If the length of lining 1 is L, internal diameter is D, then the front end of pusher dog 4 is L+30mm to spanner with the terminal length overall of groove 6, the length of the screw mandrel of selecting for use 5 should be 1.3L+30mm, screw mandrel 5 is 2L+30mm with the length overall of square head 10, is 35mm with groove 6 ends to cover hook seam 7 internal thread opening parts distance from spanner; Front end at pusher dog 4 is provided with little hook, and its end face diameter length is D+3mm when little hook normally launches, and is 2.5mm along axis direction length; The diameter of circumferential groove 8 is D-3mm, and the diameter of screw mandrel 5 is D-6mm.
When using blind hole sleeve puller of the present utility model, to pull out cover body 3 (pusher dog 4, cover hook seam 7) earlier is driven in the lining 1, on the cylinder of pusher dog 3 owing to be provided with elongated slot 9, when squeezing into lining 1 inside, pusher dog 4 can be to interior absolutely empty gathering of elongated slot 9, thereby pusher dog 4 point diameters are dwindled, easier being driven in the lining 1.After pusher dog 4 puts in place, the front end elasticity of pusher dog 4 is recovered, and hook the termination of lining 1 in workpiece 2 blind holes one side, then screw mandrel 4 is screwed into and pulls out in the cover body 3, arrive workpiece 2 blind holes bottom until the termination of screw mandrel 5, continue to screw in screw mandrel 5, pusher dog 4 is subjected to outside reaction force, thereby lining 1 is extracted.In use, if pusher dog 4 produces rotation, stop with groove 6 places at spanner with hook spanner; When screwing in screw mandrel 5, block square head 10 with spanner, rotation is more laborsaving again.
Claims (5)
1, a kind of blind hole sleeve puller comprises the cover body (3) that pulls out cylindraceous, and the front end that pulls out cover body (3) is provided with pusher dog (4); It is characterized in that: pull out cover body (3) inner chamber and be provided with internal thread, screw mandrel (5) is identical with the intracavity diameter that pulls out cover body (3), the external screw thread on screw mandrel (5) surface matches with the internal thread that pulls out cover body (3) inner chamber, and screw mandrel (5) can screw in the inner chamber that pulls out cover body (3); In the rear end of pulling out cover body (3), be provided with at least one spanner groove (6); The cylindrical wall of pusher dog (3) leading portion is provided with at least one elongated slot (9).
2, blind hole sleeve puller according to claim 1 is characterized in that: described elongated slot (9) is four sections, evenly distributes on the cylindrical wall that pulls out cover body (3).
3, blind hole sleeve puller according to claim 2 is characterized in that: described spanner is four that are symmetrically distributed with groove (6), and is corresponding with the position of four elongated slots (9).
4, according to the arbitrary described blind hole sleeve puller of claim 1 to 3, it is characterized in that: described middle part of pulling out cover body (3) is provided with circumferential groove (8).
5, according to the arbitrary described blind hole sleeve puller of claim 1 to 3, it is characterized in that: the rear end of described screw mandrel (5) is provided with screw mandrel square head (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201261361U CN201329493Y (en) | 2009-01-14 | 2009-01-14 | Blind hole sleeve puller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201261361U CN201329493Y (en) | 2009-01-14 | 2009-01-14 | Blind hole sleeve puller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201329493Y true CN201329493Y (en) | 2009-10-21 |
Family
ID=41222867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201261361U Expired - Fee Related CN201329493Y (en) | 2009-01-14 | 2009-01-14 | Blind hole sleeve puller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201329493Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103934796A (en) * | 2014-04-18 | 2014-07-23 | 福建省121地质大队 | Bearing disassembling tool |
| CN114455161A (en) * | 2021-09-23 | 2022-05-10 | 中国海洋石油集团有限公司 | Drilling tool rigidity lossless RFID label embedding structure and embedding method thereof |
-
2009
- 2009-01-14 CN CNU2009201261361U patent/CN201329493Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103934796A (en) * | 2014-04-18 | 2014-07-23 | 福建省121地质大队 | Bearing disassembling tool |
| CN114455161A (en) * | 2021-09-23 | 2022-05-10 | 中国海洋石油集团有限公司 | Drilling tool rigidity lossless RFID label embedding structure and embedding method thereof |
| CN114455161B (en) * | 2021-09-23 | 2023-12-29 | 中国海洋石油集团有限公司 | Drilling tool rigidity lossless RFID tag embedding structure and embedding method thereof |
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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: 20091021 Termination date: 20130114 |