CN209095457U - Expansion type extracting tool - Google Patents
Expansion type extracting tool Download PDFInfo
- Publication number
- CN209095457U CN209095457U CN201821841681.4U CN201821841681U CN209095457U CN 209095457 U CN209095457 U CN 209095457U CN 201821841681 U CN201821841681 U CN 201821841681U CN 209095457 U CN209095457 U CN 209095457U
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- Prior art keywords
- locking
- expansion set
- flange
- fastening portion
- lock shaft
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Abstract
The utility model relates to a kind of expansion type extracting tools.It includes screw, locking nut, lock expansion set and lock shaft, lock shaft includes fastening portion and locking section, the outer diameter of locking section is slightly less than the internal diameter of locking expansion set, internal diameter of the front cross sectional radii of fastening portion slightly larger than locking expansion set, the rear portion cross sectional radii of fastening portion is slightly less than the internal diameter of locking expansion set, fastening portion and locking section seamlessly transit, the inner wall for locking expansion set is the round table surface cooperated with fastening portion, locking expansion set is set on lock shaft, locking expansion set has flange, the ontology of locking expansion set protrudes into swelling in the mounting hole of flange, the outer wall of the flange and flange of locking expansion set offsets, lock expansion set and fastening portion clamping, the rear portion of lock shaft is provided with external screw thread, external screw thread and locking nut cooperate；Lock shaft opens up tool internal thread through-hole, this through-hole and screw fit along axial line.A kind of expansion type extracting tool of the utility model, clever structure is easy to operate, and is not necessarily to other equipment.
Description
Technical field
The utility model relates to a kind of expansion type extracting tools.Belong to field of mechanical technique.
Background technique
At present in machinery industry, the components of processing become increasingly complex, and matching requirements are also higher and higher, while to design
It is required that also proposed very big test, in previous design, smaller components in this connection, are substantially positioned with seam allowance,
Screw is fixed, and in disassembly, due to small in size, manpower is easy to operate, can easily be disassembled, but is worked as and encountered big part zero
When part needs to dismantle, removal hole is often provided in the design, these removal holes will play very big effect, and it is suitable to be packed into
Screw can easily disassemble very much by torque spanner；But it is compact that we can frequently encounter structural member simultaneously, without suitable
Condition does removal hole, and under the conditions of this, we are often by after screw loosening, and the joint surface of flange also fits together, Wu Fafen
It opens, is just beaten at this time by worker, make its loosening, thus it is easy to disassemble, but this mode often will cause the damage of components.
Chinese utility model patent discloses a kind of removal tool special of quick detachable type expansion bolt
(201420757691.5), used expansion bolt is taken out from building hole with can be convenient.Such structure is deposited
In following problem: being only applicable to disassembly expansion bolt, and, the expansion sleeve of expansion bolt restricted to expansion bolt to be removed
Cylinder outer end must be machined with the internal screw thread with extracting tool cooperation, that is to say, that extracting tool needs corresponding special expansion
Bolt.
Summary of the invention
Purpose of the utility model is to overcome the above-mentioned shortcomings and provide a kind of expansion type extracting tools.
Purpose of the utility model is realized as follows:
A kind of expansion type extracting tool, its main feature is that: it includes screw, and locking nut locks expansion set and lock shaft, locking
Axis includes fastening portion and locking section, and the outer diameter of locking section is slightly less than the internal diameter of locking expansion set, and the front cross sectional radii of fastening portion omits
Greater than the internal diameter of locking expansion set, the rear portion cross sectional radii of fastening portion is slightly less than the internal diameter of locking expansion set, and fastening portion and locking section are flat
It slips over and crosses, the inner wall for locking expansion set is the round table surface cooperated with fastening portion, and locking expansion set is set on lock shaft, locking expansion set tool
There is flange, the ontology for locking expansion set protrudes into swelling in the mounting hole of flange, and the outer wall of the flange and flange of locking expansion set offsets, lock
Tight expansion set and fastening portion clamping, the rear portion of lock shaft are provided with external screw thread, and external screw thread and locking nut cooperate；Lock shaft is along axle center
Line opens up tool internal thread through-hole, this through-hole and screw fit.
Further, mounting hole is unthreaded hole.
Further, when the nut of screw is changed to hanging ring, whole dismounting tool can be used when the hole for hoist of flange.
Compared with prior art, the utility model has the beneficial effects that
1, a kind of expansion type extracting tool of the utility model will lock expansion set swelling in hole by locking nut, then
Disassembly separation is carried out to flange in lock shaft using screw, clever structure is easy to operate, and is not necessarily to other equipment；By more
The locking expansion set for changing different size is applicable to the screw hole size of different size.
2, a kind of expansion type extracting tool of the utility model, after locking nut is to lock shaft axial locking, the pressure of screw
Bigger, the pressure for locking expansion set device to hole is bigger, is more difficult to loosen, therefore be more conducive to the disassembly of flange.
3, a kind of expansion type extracting tool of the utility model, when screw is replaced with hanging ring, the hole for hoist that can do flange makes
With.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of expansion type extracting tool of the utility model.
Fig. 2 is the connection schematic diagram of conventional flange.
Fig. 3 is the schematic diagram for the flange that the utility model disassembly has tapped through hole.
Fig. 4 is the schematic diagram for the flange that the utility model disassembly has tapped blind hole.
In figure:
Screw 1, locking nut 2, locking expansion set 3, flange 3.1, lock shaft 4, fastening portion 4.1, locking section 4.2, flange 5,
Mounting hole 5.1, former mounting screw 6.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is further described.Implement below
Example is only used for clearly illustrating the technical solution of the utility model, and cannot be used as a limitation the protection model of limitation the utility model
It encloses.
Referring to Fig. 1-2, the utility model relates to a kind of expansion type extracting tools, it includes screw 1, locking nut 2, locking
Expansion set 3 and lock shaft 4, lock shaft 4 include fastening portion 4.1 and locking section 4.2, and the outer diameter of locking section 4.2 is slightly less than locking expansion set 3
Internal diameter, slightly larger than the internal diameter of locking expansion set 3, the rear portion cross sectional radii of fastening portion 4.1 omited for the front cross sectional radii of fastening portion 4.1
Less than the internal diameter of locking expansion set 3, fastening portion 4.1 and locking section 4.2 are seamlessly transitted, and the inner wall of locking expansion set 3 is and fastening portion 4.1
The round table surface of cooperation, locking expansion set 3 are set on lock shaft 4, and locking expansion set 3 has flange 3.1, and the ontology of locking expansion set 3 is stretched
Enter swelling in the mounting hole 5.1 of flange 5, the flange 3.1 and the outer wall of flange for locking expansion set 3 offset, and lock expansion set 3 and fastening portion
4.1 clampings, the rear portion of lock shaft 4 are provided with external screw thread 4.1, and external screw thread 4.1 and locking nut 2 cooperate, in fastening portion 4.1 and lock
Under the collective effect of tight nut 2, lock shaft 4 finally to lock 3 swelling of expansion set in the mounting hole 5.1 of flange 5 by axial locking
It is interior.
Lock shaft 4 opens up tool internal thread through-hole along axial line, this through-hole and screw 1 cooperate.
Wherein, mounting hole 5.1 is unthreaded hole (inner wall smooth).
A kind of method for dismounting of expansion type extracting tool of the utility model is as follows:
1, the disassembly when end b of flange 5 is tapped through hole: pass through referring to Fig. 3 when the end b of flange 5 is tapped through hole
Locking nut 2 is by 4 axial locking of lock shaft, so that 3 swelling of expansion set is locked on the mounting hole 5.1 of flange 5, by former mounting screw
6 are relatively packed into from the end face b of flange 5 with screw 1, turn screw 1 and are allowed to advance to former 6 direction of mounting screw, until screw 1
Screw rod end and the screw rod end of former mounting screw 6 offset, then the application torque of screw 1 is dismantled by torque wrench, can
The end b of flange 5 is opened, so that the end a of flange 5 and the separation of the end b, do not tap damage.
2, the disassembly when end b of flange 5 is tapped blind hole: referring to fig. 4, when the end b of flange 5 is tapped blind hole, pass through
Locking nut 2 is by 4 axial locking of lock shaft, so that locking 3 swelling of expansion set is on the mounting hole 5.1 of flange 5, turning screw 1 makes
Advance to former 6 direction of mounting screw, until the screw rod end and the blind hole bottom surface of flange 5 of screw 1 offset, then pulled by torque
Hand applies torque to screw 1 and dismantles, and can open the end b of flange 5, so that the end a of flange 5 and the separation of the end b, do not tap
Damage.
The utility model clever structure, it is easy to operate, and it is not necessarily to other equipment；By the locking expansion set for replacing different size
3, it is applicable to the screw hole size of different size.
Locking nut 2 is by after 4 axial locking of lock shaft, if the nut of screw 1 is changed to hanging ring, whole dismounting tool can
When the hole for hoist of flange 5 uses, especially for flange part and not the components of hole for hoist, do not facilitate carrying.
In the above-described embodiments, exemplary description only is carried out to the utility model, but those skilled in the art are reading
Various repair can be carried out to the utility model in the case where not departing from the spirit and scope of the utility model after present patent application
Change.
Claims (3)
1. a kind of expansion type extracting tool, it is characterised in that: it includes screw, and locking nut locks expansion set and lock shaft, locking
Axis includes fastening portion and locking section, and the outer diameter of locking section is slightly less than the internal diameter of locking expansion set, and the front cross sectional radii of fastening portion omits
Greater than the internal diameter of locking expansion set, the rear portion cross sectional radii of fastening portion is slightly less than the internal diameter of locking expansion set, and fastening portion and locking section are flat
It slips over and crosses, the inner wall for locking expansion set is the round table surface cooperated with fastening portion, and locking expansion set is set on lock shaft, locking expansion set tool
There is flange, the ontology for locking expansion set protrudes into swelling in the mounting hole of flange, and the outer wall of the flange and flange of locking expansion set offsets, lock
Tight expansion set and fastening portion clamping, the rear portion of lock shaft are provided with external screw thread, and external screw thread and locking nut cooperate；Lock shaft is along axle center
Line opens up tool internal thread through-hole, this through-hole and screw fit.
2. a kind of expansion type extracting tool according to claim 1, it is characterised in that: mounting hole is unthreaded hole.
3. a kind of expansion type extracting tool according to claim 1, it is characterised in that: when the nut of screw is changed to hanging ring,
Whole dismounting tool can be used when the hole for hoist of flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821841681.4U CN209095457U (en) | 2018-11-09 | 2018-11-09 | Expansion type extracting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821841681.4U CN209095457U (en) | 2018-11-09 | 2018-11-09 | Expansion type extracting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209095457U true CN209095457U (en) | 2019-07-12 |
Family
ID=67158863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821841681.4U Active CN209095457U (en) | 2018-11-09 | 2018-11-09 | Expansion type extracting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209095457U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109227467A (en) * | 2018-11-09 | 2019-01-18 | 苏州科峰英诺传动技术有限公司 | Expansion type extracting tool and its method for dismounting |
-
2018
- 2018-11-09 CN CN201821841681.4U patent/CN209095457U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109227467A (en) * | 2018-11-09 | 2019-01-18 | 苏州科峰英诺传动技术有限公司 | Expansion type extracting tool and its method for dismounting |
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