CN214980733U - Blind hole inner shaft sleeve dismounting device - Google Patents
Blind hole inner shaft sleeve dismounting device Download PDFInfo
- Publication number
- CN214980733U CN214980733U CN202023242361.7U CN202023242361U CN214980733U CN 214980733 U CN214980733 U CN 214980733U CN 202023242361 U CN202023242361 U CN 202023242361U CN 214980733 U CN214980733 U CN 214980733U
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- China
- Prior art keywords
- claw
- draw
- hole
- screw thread
- fixed cover
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- 210000000078 claw Anatomy 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
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- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The utility model discloses an axle sleeve dismounting device in blind hole, include: draw the claw draw be provided with the through-hole in the claw draw the upper end of claw be provided with the fixed cover of screw thread that communicates each other with the through-hole be provided with the internal thread on the inner wall of fixed cover of screw thread draw the lower extreme outside of claw to be provided with the drag hook step the inboard of drawing the claw of drag hook step upper end is provided with the support sphere draw one side of claw to be provided with the type of falling U groove, the opening in the type of falling U groove is located the lower extreme that draws the claw the guide bar is worn to be equipped with by the through-hole internalization the upper end of guide bar is provided with the ejector pin, the upper end that the ejector pin stretches out the fixed cover of screw thread is provided with the laborsaving pole mounting hole be provided with the laborsaving pole in the laborsaving pole mounting hole the outside of ejector pin is provided with the external screw thread that mutually supports with the internal thread.
Description
Technical Field
The utility model relates to an axle sleeve dismounting device in blind hole.
Background
In the process of repairing and disassembling the equipment, the problem that the shaft sleeve needs to be disassembled from the blind hole workpiece is frequently encountered, and the normal method comprises the following steps: firstly, selecting a proper tap according to an inner hole of the worn shaft sleeve, tapping the inner hole into a threaded hole, and then ejecting the threaded hole by using an ejector rod; secondly, turning off the workpiece by using a lathe or other machine tools; the two methods have certain disadvantages, and the first method cannot remove the shaft sleeve on the premise of not damaging the shaft sleeve; the second method has low efficiency, inconvenient operation and long consumed time.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the blind hole inner shaft sleeve dismounting device is good in dismounting effect.
In order to solve the technical problem, the utility model discloses a technical scheme is: a blind hole inner shaft sleeve dismounting device comprises: draw the claw draw be provided with the through-hole in the claw draw the upper end of claw be provided with the fixed cover of screw thread that communicates each other with the through-hole be provided with the internal thread on the inner wall of fixed cover of screw thread draw the lower extreme outside of claw to be provided with the drag hook step the inboard of drawing the claw of drag hook step upper end is provided with the support sphere draw one side of claw to be provided with the type of falling U groove, the opening in the type of falling U groove is located the lower extreme of drawing the claw the guide bar is worn to be equipped with by the through-hole internalization the upper end of guide bar is provided with the ejector pin, the upper end that the ejector pin stretches out the fixed cover of screw thread is provided with the laborsaving pole mounting hole be provided with the laborsaving pole in the laborsaving pole mounting hole the outside of ejector pin be provided with the external screw thread that mutually supports the sphere and mutually supports.
The utility model has the advantages that: above-mentioned axle sleeve dismounting device in blind hole, novel structure, convenient operation conveniently tears the axle sleeve out when can guaranteeing the integrity of axle sleeve, and is efficient, dismantles effectually, convenient to carry.
Drawings
Fig. 1 is the utility model relates to a shaft sleeve dismounting device's in blind hole schematic structure diagram.
Fig. 2 is a schematic perspective view of the pull claw in fig. 1.
Fig. 3 is a side view schematically showing the structure of the guide bar and the lift bar of fig. 1.
In the figure: 1. draw claw, 2, through-hole, 3, screw thread fixed cover, 4, internal thread, 5, drag hook step, 6, support sphere, 7, the type of falling U groove, 71, opening, 8, guide bar, 9, ejector pin, 91, external screw thread, 10, laborsaving pole mounting hole, 11, laborsaving pole, 12, extrusion sphere, 13, axle sleeve, 14, blind hole work piece.
Detailed Description
The following detailed description of the present invention will be made in conjunction with the accompanying drawings and specific embodiments.
As shown in fig. 1, 2 and 3, a blind hole inner sleeve dismounting device includes: the pull claw 1 is internally provided with a through hole 2, the upper end of the pull claw 1 is provided with a thread fixing sleeve 3 mutually communicated with the through hole 2, the inner wall of the thread fixing sleeve 3 is provided with an internal thread 4, the outer side of the lower end of the pull claw 1 is provided with a drag hook step 5, the inner side of the pull claw 1 at the upper end of the drag hook step 5 is provided with a supporting spherical surface 6, one side of the pull claw 1 is provided with an inverted U-shaped groove 7, the opening 71 of the inverted U-shaped groove 7 is positioned at the lower end of the pull claw 1, a guide rod 8 is movably penetrated in the through hole 2, the upper end of the guide rod 8 is provided with a mandril 9, the upper end of the mandril 9 extending out of the thread fixing sleeve 3 is provided with a labor-saving rod mounting hole 10, the labor-saving rod 11 is arranged in the labor-saving rod mounting hole 10, the outer side of the mandril 9 is provided with an external thread 91 mutually matched with the internal thread 4, the lower end of the guide rod 8 is provided with an extrusion spherical surface 12 which is matched with the support spherical surface 6.
When the pull claw 1 is used, the pull claw 1 is downwards inserted into the shaft sleeve 13, and due to the existence of the inverted U-shaped groove 7, the pull claw 1 has certain radial contractibility, so that the pull hook step 5 can be smoothly inserted into the shaft sleeve 13, when the pull claw 1 is downwards inserted to be abutted against the bottom of the blind hole workpiece 14, the guide rod 8 is inserted into the through hole 2 until the ejector rod 9 is abutted against the thread fixing sleeve 3, the ejector rod 9 is screwed into the internal thread 4 through the external thread 91, the ejector rod 9 is pulled to rotate by utilizing the labor-saving rod 11 to penetrate through the labor-saving rod mounting hole 10, the guide rod 8 is pushed to continuously move downwards along with the downward threaded screwing of the ejector rod 9, the guide rod 8 drives the lower end extrusion spherical surface 12 to be abutted against the support spherical surface 6 and continuously extrude downwards, when the extrusion spherical surface 12 passes through the support spherical surface 6, the lower end of the pull claw 1 is expanded, the pull hook step 5 is outwards extruded to a gap between the shaft sleeve 13 and the blind hole workpiece 14 to realize clamping, then the pulling claw 1 is lifted upwards, the pulling claw 1 drives the pulling hook step 5 to ascend, and the pulling hook step 5 pulls the shaft sleeve 13 out of the blind hole workpiece 14.
Above-mentioned axle sleeve dismounting device in blind hole, novel structure, convenient operation conveniently tears the axle sleeve out when can guaranteeing the integrity of axle sleeve, and is efficient, dismantles effectually, convenient to carry.
Claims (1)
1. The utility model provides a shaft sleeve dismounting device in blind hole which characterized in that: the method comprises the following steps: draw claw (1) draw to be provided with in the claw (1) through-hole (2) draw the upper end of claw (1) to be provided with the fixed cover of screw thread (3) that through-hole (2) communicate each other draw to be provided with on the inner wall of the fixed cover of screw thread (3) internal thread (4), draw the lower extreme outside of claw (1) to be provided with drag hook step (5) draw the inboard of claw (1) of drag hook step (5) upper end to be provided with support sphere (6) draw one side of claw (1) to be provided with inverted U type groove (7), the opening (71) of inverted U type groove (7) are located the lower extreme that draws claw (1) draw the activity in through-hole (2) to wear to be equipped with guide bar (8) the upper end of guide bar (8) is provided with ejector pin (9), the upper end that ejector pin (9) stretches out the fixed cover of screw thread (3) is provided with laborsaving pole mounting hole (10), the labor-saving rod installing hole (10) is internally provided with a labor-saving rod (11), the outer side of the ejector rod (9) is provided with an external thread (91) matched with the internal thread (4), and the lower end of the guide rod (8) is provided with an extrusion spherical surface (12) matched with the support spherical surface (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023242361.7U CN214980733U (en) | 2020-12-29 | 2020-12-29 | Blind hole inner shaft sleeve dismounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023242361.7U CN214980733U (en) | 2020-12-29 | 2020-12-29 | Blind hole inner shaft sleeve dismounting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214980733U true CN214980733U (en) | 2021-12-03 |
Family
ID=79141627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023242361.7U Active CN214980733U (en) | 2020-12-29 | 2020-12-29 | Blind hole inner shaft sleeve dismounting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214980733U (en) |
-
2020
- 2020-12-29 CN CN202023242361.7U patent/CN214980733U/en active Active
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| GR01 | Patent grant |