CN111216070A - Dismounting device for annular part in stepped hole - Google Patents
Dismounting device for annular part in stepped hole Download PDFInfo
- Publication number
- CN111216070A CN111216070A CN202010157179.7A CN202010157179A CN111216070A CN 111216070 A CN111216070 A CN 111216070A CN 202010157179 A CN202010157179 A CN 202010157179A CN 111216070 A CN111216070 A CN 111216070A
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- CN
- China
- Prior art keywords
- screw rod
- stepped hole
- annular part
- supporting
- arm brace
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- 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.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/023—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same using screws
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The invention relates to the technical field of mechanical equipment, in particular to a dismounting device for annular parts in a stepped hole, which comprises a screw rod, wherein the screw rod sequentially penetrates through a supporting leg fixing disk, a tightening pressing seat, a supporting housing and a locking nut from bottom to top, a plurality of supporting legs are arranged on the periphery of the supporting leg fixing disk, the supporting legs are rotatably connected with the supporting leg fixing disk, the tightening pressing seat comprises a moving groove which can enable the top ends of the supporting legs to move towards the screw rod, and bulges are arranged on the bottom ends of the supporting legs back to the screw rod.
Description
Technical Field
The invention relates to the technical field of mechanical equipment, in particular to a dismounting device for an annular part in a stepped hole.
Background
Annular part is equipped with in the shoulder hole of a lot of mechanical structure bottoms, and annular part and shoulder hole generally adopt interference fit, and difficult dismantlement generally all belong to vulnerable part moreover, need often to change, if adopt prior art to dismantle, complex operation, the success rate is low, dismantles the process moreover and causes the damage to the shoulder hole easily, influences the used repeatedly of shoulder hole part, causes the waste.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the defect of the prior art is overcome, and the annular part dismounting device in the stepped hole is convenient to dismount and improves the reuse rate of the stepped hole parts.
The technical scheme adopted by the invention for solving the technical problem is as follows: annular part dismounting device in shoulder hole, including the screw rod, the screw rod passes the arm brace fixed disk from bottom to top in proper order, props tight seat, support housing and lock nut, prop tight seat and lock nut and screw rod threaded connection supports the housing and follows the screw rod slides from top to bottom, the peripheral circumference of arm brace fixed disk sets up a plurality of arm braces, the arm brace rotates with the arm brace fixed disk to be connected, props tight seat including the removal recess that can make the arm brace top remove to the screw rod, and the bottom dorsad screw rod of arm brace is equipped with the arch.
When the detachable support cover is used, the support cover shell is placed on the bottom surface of a stepped hole to be detached, the support leg fixing disc is rotated to enable the support leg to penetrate into a proper position in the small hole of the stepped hole, the joint of the support leg and the support leg fixing disc serves as a fulcrum, the support pressing seat is screwed down to enable the top end of the support leg to move towards the screw rod and approach, so that the protrusion arranged at the bottom end of the support leg is clamped on the end surface of the annular part to be relatively fixed, the screw rod is kept not rotated, the locking nut is screwed towards the direction of the support cover shell to enable the screw rod to drive the support leg and the annular part to move outwards, the stepped hole is separated from the annular part, then the support pressing seat is rotated upwards along the screw rod to separate the support leg.
The supporting foot fixing disc is provided with a conical supporting base below, the conical supporting base is fixedly connected with the screw rod, and the supporting foot is matched with one surface of the conical supporting base in a side face inclined mode. The conical support base has a supporting effect on the supporting foot, the supporting foot is located between the annular part and the conical support base during use, stability and firmness of the device during use are improved, and the supporting foot is prevented from being broken due to overlarge stress.
The movable groove is in a round table shape, and the side face of the top of the supporting foot is matched with the side wall of the movable groove and is obliquely arranged. When the tightening base is convenient to move downwards, the tops of the supporting feet are more easily inserted into the moving grooves and move towards the screw rods along the inner walls of the moving grooves.
Knurling is arranged on the outer wall of the moving groove.
The upper surface of the conical support base is provided with a fixing groove, and the bottom of the screw rod is inserted into the fixing groove and welded with the conical support base.
The supporting housing comprises a housing bottom and a housing wall arranged along the periphery of the housing bottom, the screw rod penetrates through the housing bottom, and the bottom of the housing wall is sleeved with an anti-skid rubber sleeve. During the use, will support the housing and put on the bottom surface of the shoulder hole of treating the dismantlement for increase frictional force, increase the steadiness in the whole dismounting device use.
The number of the supporting feet is 3.
And a square screw boss is fixedly arranged at the end part of one end of the screw, which is far away from the conical support base. Need guarantee that the screw rod does not rotate when twisting lock nut, just can realize that the screw rod drives spike and cyclic annular part and removes outside the shoulder hole, because the screw rod is cylindrical, when preventing the screw rod rotation with the screw rod is fixed through holding or other instruments, skid easily, consequently keep away from the one end tip that the toper supported the base at the screw rod and set up square screw rod boss, fix the screw rod boss with the help of instruments such as spanners, and then guarantee that whole screw rod can not rotate, increase the convenience of operation.
The tightening pressing seat further comprises a square pressing seat boss which is arranged above the movable groove and fixedly connected with the movable groove. When the screw rod drives arm brace and cyclic annular part and moves outside the shoulder hole, also need guarantee to prop tightly and press the seat and can not rotate, just can maintain arm brace and cyclic annular part relatively fixed's position, consequently set up square pressure seat boss, will press a boss fixed with the help of instruments such as spanners, increase the convenience of operation.
The periphery of the arm brace fixing disc is provided with a cylindrical pin which penetrates through the arm brace corresponding to the arm brace, and the arm brace is rotatably connected with the arm brace fixing disc through the cylindrical pin.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a dismounting device for an annular part in a stepped hole, which solves the problem of quickly removing the annular part in interference fit in the stepped hole, has high success rate of taking out, can realize the tightening and loosening of the annular part through the matching of a supporting foot and a tightening pressing seat, is convenient to separate the annular part from the dismounting device after being taken out, and simultaneously avoids the damage to the stepped hole in the process of taking out, and has simple structure and convenient operation and use.
Drawings
Fig. 1 is a schematic perspective view of the present invention in use.
Fig. 2 is a schematic view of the structure of the present invention when not in use.
FIG. 3 is a schematic view of the connection between the supporting leg fixing plate and the supporting leg according to the present invention.
In the figure: 1. a screw; 2. locking the nut; 3. a support housing; 301. a cover bottom; 302. a housing wall; 4. supporting and pressing the seat; 401. moving the groove; 402. pressing a boss of the base; 5. a cylindrical pin; 6. a supporting leg fixing disc; 7. an anti-slip rubber sleeve; 8. a brace; 9. the base is supported in a conical shape.
Detailed Description
Embodiments of the invention are further described below with reference to the accompanying drawings:
examples
As shown in fig. 1 to 3, the dismounting device for annular parts in a stepped hole comprises a screw rod 1, wherein the screw rod 1 sequentially penetrates through a supporting leg fixing disk 6, a supporting pressing seat 4, a supporting housing 3 and a locking nut 2 from bottom to top, the supporting pressing seat 4 and the locking nut 2 are in threaded connection with the screw rod 1, the supporting housing 3 slides up and down along the screw rod 1, a plurality of supporting legs 8 are arranged on the periphery of the supporting leg fixing disk 6, and 3 supporting legs 8 are arranged in the embodiment. The arm brace 8 is rotationally connected with the arm brace fixing disc 6, the tightening pressing seat 4 comprises a moving groove 401 which can enable the top end of the arm brace 8 to move towards the screw rod 1, and the bottom end of the arm brace 8 is back to the screw rod 1 and is provided with a protrusion. The periphery of the arm brace fixing disc 6 is provided with a cylindrical pin 5 which penetrates through the arm brace 8 corresponding to the arm brace 8, and the arm brace 8 is rotatably connected with the arm brace fixing disc 6 through the cylindrical pin 5. The arm brace 8 is mainly set up according to lever principle to the junction of arm brace fixed disk 6 and arm brace 8 is connected through cylindric lock 5 as the fulcrum, thereby realizes arm brace 8 rotatable, and arm brace 8 is close to the one end of propping tight pressure seat 4 from the fulcrum and is the power end, and the other end then is the resistance end, removes recess 401 and rotates downwards and then arm brace power end and move to screw rod 1 and draw close, and the resistance end sticks up and offsets with the cyclic annular part terminal surface of waiting to dismantle, realizes the relative fixation. The bottom of arm brace 8 is equipped with the arch to screw rod 1 dorsad, and when 8 resistance ends of arm brace upwarped, the protruding department card that 8 bottoms of arm brace set up was on cyclic annular part terminal surface, and then when realizing twisting lock nut 2, screw rod 1 can drive arm brace 8 and then drive cyclic annular part and shift up.
The moving groove 401 is in a circular truncated cone shape, and the side surface of the top of the supporting foot 8 is matched with the side wall of the moving groove 401 to be obliquely arranged. When the tightening base 4 is moved downwards, the top of the brace 8 is more easily inserted into the moving groove 401 and moves towards the screw rod 1 along the inner wall of the moving groove 401. The outer wall of the moving groove 401 is provided with knurling. For increasing the friction force, the operation is more convenient when the moving groove 401 is screwed. The tightening pressing seat 4 further comprises a square pressing seat boss 402 which is arranged above the moving groove 401 and is fixedly connected with the moving groove 401. When screw 1 drives arm brace 8 and cyclic annular part and moves outside the shoulder hole, also need guarantee to prop tightly and press seat 4 and can not rotate, just can maintain arm brace 8 and cyclic annular part relatively fixed's position, consequently set up square pressure seat boss 402, will press seat boss 402 fixed with the help of instruments such as spanners, increase the convenience of operation.
The conical supporting base 9 is arranged below the supporting foot fixing disc 6, the conical supporting base 9 is fixedly connected with the screw rod 1, and the supporting foot 8 is obliquely arranged on the side face of the conical supporting base 9 in a manner of matching with one face of the conical supporting base 9. The conical support base 9 supports the supporting feet 8, the supporting feet 8 are located between the annular part and the conical support base 9 during use, stability and firmness of the device during use are improved, and the supporting feet 8 are prevented from being broken due to overlarge stress. The upper surface of the conical support base 9 is provided with a fixing groove, and the bottom of the screw rod 1 is inserted into the fixing groove and welded with the conical support base 9.
The end part of one end of the screw 1 far away from the conical support base 9 is fixedly provided with a square screw boss. Need guarantee that screw rod 1 does not rotate when screwing up lock nut 2 to supporting 3 directions of housing, just can realize moving screw rod 1 along with lock nut 2 and drive arm brace 8 and cyclic annular part and remove outside the shoulder hole, because screw rod 1 is cylindrical, when preventing screw rod 1 from rotating through holding or other instruments with screw rod 1 is fixed, skid easily, consequently, the one end tip of keeping away from toper support base 9 at screw rod 1 sets up square screw rod boss, fix the screw rod boss with the help of instruments such as spanners, and then guarantee that whole screw rod 1 can not rotate, increase the convenience of operation.
The supporting housing 3 comprises a housing bottom 301 and a housing wall 302 arranged along the periphery of the housing bottom 301, the screw 1 penetrates through the housing bottom 301, and the bottom of the housing wall 302 is sleeved with the anti-skid rubber sleeve 7. During the use, will support housing 3 and put on the bottom surface of the shoulder hole of treating the dismantlement for increase frictional force, increase the steadiness in the whole dismounting device use. The screw 1 penetrates through the cover bottom 301, the supporting cover 3 slides up and down along the screw 1 instead of the threaded connection between the cover bottom 301 and the screw 1, so that when the locking nut 2 is screwed in use, the supporting cover 3 can be always fixed relative to the bottom surface of the stepped hole to be detached and cannot move upwards along with the upward movement of the screw 1.
Claims (10)
1. The utility model provides an annular part dismounting device in shoulder hole, its characterized in that, includes screw rod (1), screw rod (1) passes arm brace fixed disk (6), props tight pressure seat (4), supports housing (3) and lock nut (2) from bottom to top in proper order, prop tight pressure seat (4) and lock nut (2) with screw rod (1) threaded connection supports housing (3) and follows screw rod (1) slides from top to bottom, arm brace fixed disk (6) peripheral circumference sets up a plurality of arm braces (8), the arm brace rotates with arm brace fixed disk (6) to be connected, props tight pressure seat (4) and is equipped with the arch including removal recess (401) that can make arm brace (8) top to screw rod (1) removal, the bottom dorsad of arm brace (8) screw rod (1).
2. The dismounting device for the annular part in the stepped hole according to claim 1, wherein a conical support base (9) is arranged below the supporting foot fixing disc (6), the conical support base (9) is fixedly connected with the screw rod (1), and one surface of the supporting foot (8) facing the conical support base (9) is matched with the side surface of the conical support base (9) to be obliquely arranged.
3. The device for dismounting the annular part in the stepped hole according to claim 1, wherein the moving groove is in the shape of a circular truncated cone, and the side surface of the top of the supporting leg (8) is obliquely arranged in cooperation with the side wall of the moving groove.
4. Device for dismounting a ring-shaped part inside a stepped hole according to claim 1 or 3, characterized in that the outer wall of the moving groove (401) is provided with knurling.
5. The dismounting device for the annular part in the stepped hole according to claim 2, wherein the conical support base (9) is provided with a fixing groove on the upper surface, and the bottom of the screw rod (1) is inserted into the fixing groove and welded with the conical support base (9).
6. The dismounting device for the annular part in the stepped hole is characterized in that the supporting cover shell (3) comprises a cover bottom (301) and a cover wall (302) arranged along the periphery of the cover bottom (301), the screw (1) penetrates through the cover bottom (301), and the bottom of the cover wall (302) is sleeved with an anti-skid rubber sleeve (7).
7. Device for dismounting a ring-shaped part inside a stepped hole according to claim 1 or 2, characterised in that the number of said arms (8) is 3.
8. The device for detaching the annular part in the stepped hole according to claim 1, wherein a square screw boss is fixedly arranged at one end of the screw (1) far away from the conical support base (9).
9. The dismounting device for the annular part in the stepped hole according to claim 1 or 3, wherein the tightening and pressing seat (4) further comprises a square pressing seat boss (402) which is arranged above the moving groove (401) and is fixedly connected with the moving groove (401).
10. The dismounting device for the annular part in the stepped hole according to claim 1, wherein the supporting leg fixing disc (6) is provided with a cylindrical pin (5) which penetrates through the supporting leg (8) at the periphery corresponding to the supporting leg (8), and the supporting leg (8) is rotatably connected with the supporting leg fixing disc (6) through the cylindrical pin (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010157179.7A CN111216070A (en) | 2020-03-09 | 2020-03-09 | Dismounting device for annular part in stepped hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010157179.7A CN111216070A (en) | 2020-03-09 | 2020-03-09 | Dismounting device for annular part in stepped hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111216070A true CN111216070A (en) | 2020-06-02 |
Family
ID=70812039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010157179.7A Withdrawn CN111216070A (en) | 2020-03-09 | 2020-03-09 | Dismounting device for annular part in stepped hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111216070A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113231989A (en) * | 2021-06-15 | 2021-08-10 | 高伟 | New energy automobile decomposition device |
-
2020
- 2020-03-09 CN CN202010157179.7A patent/CN111216070A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113231989A (en) * | 2021-06-15 | 2021-08-10 | 高伟 | New energy automobile decomposition device |
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| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200602 |
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| WW01 | Invention patent application withdrawn after publication |