CN107825065B - Auxiliary tool for taking out bearing by compression and expansion - Google Patents
Auxiliary tool for taking out bearing by compression and expansion Download PDFInfo
- Publication number
- CN107825065B CN107825065B CN201711315354.5A CN201711315354A CN107825065B CN 107825065 B CN107825065 B CN 107825065B CN 201711315354 A CN201711315354 A CN 201711315354A CN 107825065 B CN107825065 B CN 107825065B
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- Prior art keywords
- expansion
- guide plate
- whole body
- shaft
- compression
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- 230000006835 compression Effects 0.000 title claims abstract description 23
- 238000007906 compression Methods 0.000 title claims abstract description 23
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
-
- 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
- B25B27/06—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 inserting or withdrawing sleeves or bearing races
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Road Paving Machines (AREA)
Abstract
The invention discloses an auxiliary tool for taking out a bearing by compression and expansion, which comprises a pair of expansion hollow half shafts which are matched and correspond to each other, wherein expansion grooves are formed in the inner sides of the expansion hollow half shafts, an expandable whole body shaft is formed by folding the two expansion hollow half shafts, an expansion middle hole is formed in the whole body shaft after folding the expansion grooves on the two sides, a sliding rod part, a shaft shoulder part and a hooking part are arranged on the whole body shaft, a front guide plate and a rear guide plate are arranged on the shaft shoulder part in a penetrating manner, the upper end and the lower end of the front guide plate and the lower end of the rear guide plate are fixed in a opposite manner through a pair of pin shafts, a spring accommodating groove is formed in the shaft shoulder part, a compression spring is arranged in the spring accommodating groove, and a rotary support rod is arranged in the expansion middle hole. The invention adopts the form of double hooks and spring compression and bolt rotation and simultaneously pushing up the double hooks, so that the problems of difficult unhooking of the bearing and damage to the tool are avoided, and the mounting and dismounting of the bearing of the engine are greatly accelerated.
Description
Technical Field
The invention relates to a tool of an engine, in particular to an auxiliary tool for taking out a bearing by compression and expansion.
Background
At present, with the increase of engines, the number of repairing and taking out the bearings is increased and more frequently, but due to the particularity of the bearings, the tools for taking out the bearings are two, the first structure adopts a single-hook knocking structure, namely, the single-hook is used for directly hooking the bearings in the engine cylinder body, after the inner holes of the bearings are hooked, the bearings are taken out, although the bearings can be knocked out, the single hook is easy to separate from the inner holes of the bearings during the knocking, and the second type of operation is very difficult to use, namely, a double-hook knocking mode is adopted for pushing up the bolts, although the bearings can be easily knocked out, due to the fact that the bolts are used for a long time, the broken place of the tools is difficult to recover, so that the tools are difficult to insert into the bearing holes, and the tools are difficult to use, and meanwhile, the tools in the cylinder body are easy to damage, and are not recommended to use.
Disclosure of Invention
The invention provides an auxiliary tool for taking out a bearing by compression and expansion in order to solve the defects in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme: the auxiliary tool for taking out the bearing by compression expansion comprises a pair of expansion hollow half shafts which are matched, wherein expansion grooves are formed in the inner sides of the expansion hollow half shafts, an expandable whole body shaft is formed after the two expansion hollow half shafts are mutually folded, an expansion middle hole is formed in the whole body shaft after the expansion grooves on the two sides are folded, a sliding rod part is arranged at the front part of the whole body shaft, a raised shaft shoulder part is arranged in the middle part of the whole body shaft, a hooking part which can be inserted into a bearing of an engine cylinder body is arranged at the rear part of the whole body shaft, a front guide plate and a rear guide plate are arranged on the shaft shoulder part in a penetrating manner, corresponding guide middle holes are formed in the middle parts of the front guide plate and the rear guide plate, the guide middle holes of the rear guide plate are internally threaded holes, the upper end and the lower end of the front guide plate and the rear guide plate are oppositely pulled and fixed through a pair of pin shafts, a spring accommodating groove is formed in the shaft shoulder part, a compression spring is arranged in the spring accommodating groove, a stop is fixed in the middle part of the pin shaft, a rotary support rod is arranged in the expansion middle hole, and the front end part of the rotary support rod passes through the threaded hole of the rotary support rod; the front end of the expansion middle hole is provided with a horn-shaped expansion port, the front end part of the rotary supporting rod is provided with a conical part corresponding to the expansion port, and the conical part is inserted into the expansion port forwards so as to prop up the expansion middle hole, so that the hooking part of the whole body shaft is expanded outwards to hook the assembly hole of the bearing of the engine cylinder body.
Preferably, a knob for facilitating rotation of the rotary stay is mounted at the rear end of the rotary stay.
Preferably, the sliding rod part is sleeved with a knocking hammer.
According to the invention, the expansion hollow half shaft and two complete half shaft structures on the expansion hollow half shaft are assembled, namely, a complete whole body shaft is formed, an expansion middle hole is formed in the whole body shaft for inserting a rotary supporting rod, the whole body shaft is installed by means of inserting and fixing a front guide plate and a rear guide plate, the two expansion hollow half shafts cannot transversely move after the front guide plate and the rear guide plate are inserted, after pins are installed at two ends of a pin shaft, the front guide plate and the rear guide plate are oppositely pulled and fixed by the pin shaft, and compression springs at the middle stops of the two pin shafts correspondingly press the two expansion hollow half shafts up and down, so that the two expansion hollow half shafts cannot vertically and easily move.
During actual use, the whole body shaft is directly inserted into the bearing inner hole of the bearing of the engine cylinder body, then the rotary stay bar is inserted, the front end of the rotary stay bar is directly inserted into the position of the bell mouth, at the moment, the rotary knob is rotated, the threaded part on the rotary stay bar and the rear guide plate are matched with threads to rotate and push forwards, in the process of pushing, the front end part of the rotary stay bar is directly matched with the bell mouth to prop up the whole body shaft, so that the whole body shaft expands and contracts the compression spring, the whole body shaft expands, the inner hole of the bearing of the engine cylinder body is also expanded and hooked by the hooking part at the foremost end of the whole body shaft, hooking and fixing are formed, finally, the knocking hammer on the sliding rod part is used, and the bearing is slowly taken out of the engine cylinder body by slowly and outwards impacting.
Compared with the prior art, the double-hook lifting device has the advantages that the double-hook lifting device adopts the form of double-hook spring compression and bolt rotation and simultaneously pushes up the double hooks, so that the problems that the unhooking is difficult to take bearings and the tooling is damaged are solved, the bearing installation and disassembly of an engine are greatly accelerated, the structure is simple, and the practicability is high.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is a schematic view of the structure of the hooking portion of the present invention;
FIG. 3 is a schematic diagram of the structure of the present invention;
fig. 4 is a schematic diagram of the operation of the present invention.
Detailed Description
The invention will be described in detail with reference to the drawings and examples.
As shown in fig. 1,2, 3 and 4, the auxiliary tool for taking out the bearing by compression expansion provided by the invention comprises a pair of expansion hollow half shafts 1 which are matched and correspond to each other, wherein expansion grooves are formed in the inner sides of the expansion hollow half shafts 1, an expandable whole shaft 2 is formed after the two expansion half shafts 1 are mutually folded, the inside of the whole shaft is formed into an expansion middle hole 11 after the expansion grooves on the two sides are folded, the front part of the whole shaft is provided with a slide bar part 21, the middle part of the whole shaft is provided with a raised shaft shoulder part 22, the rear part of the whole shaft is provided with a hooking part 23 which can be inserted into a bearing of an engine cylinder body 8, the shaft shoulder part 22 is penetrated and provided with a front guide plate 3 and a rear guide plate 4, the middle parts of the front guide plate 3 and the rear guide plate 4 are provided with corresponding guide middle holes, the guide middle holes of the rear guide plate 4 are provided with internal threaded holes 41, the upper ends and the lower ends of the front guide plate 3 and the rear guide plate 4 are fixedly pulled by a pair of pin shafts 5, the shaft shoulder part 22 is provided with a spring accommodating groove 24, the spring accommodating groove 6 is internally provided with a compression spring 6, the upper supporting part 6 is fixedly provided with a compression pin shaft 7, the compression pin part 7 is fixedly provided with a rotary middle hole 7 penetrates through the internal threaded hole 41, and the rotary supporting rod 7 is penetrated and the threaded hole 41 is penetrated and screwed into the threaded hole 41; the front end of the expansion middle hole 11 is provided with a horn-shaped expansion opening 12, the front end of the rotary supporting rod 7 is provided with a conical part 71 corresponding to the expansion opening 12, the conical part 71 is inserted into the expansion opening 12 forwards so as to prop up the expansion middle hole 11, and then the hooking part 23 of the whole body shaft is expanded outwards to hook the assembly hole of the bearing of the engine cylinder body 8.
The rear end of the rotary stay bar 7 is provided with a rotary handle 9 which facilitates the rotation of the rotary stay bar 7. The knocking hammer 10 is sleeved on the slide rod part 21.
According to the invention, the expansion hollow half shaft and two complete half shaft structures on the expansion hollow half shaft are assembled, namely, a complete whole body shaft is formed, an expansion middle hole is formed in the whole body shaft for inserting a rotary supporting rod, the whole body shaft is installed by means of inserting and fixing a front guide plate and a rear guide plate, the two expansion hollow half shafts cannot transversely move after the front guide plate and the rear guide plate are inserted, after pins are installed at two ends of a pin shaft, the front guide plate and the rear guide plate are oppositely pulled and fixed by the pin shaft, and compression springs at the middle stops of the two pin shafts correspondingly press the two expansion hollow half shafts up and down, so that the two expansion hollow half shafts cannot vertically and easily move.
During actual use, the whole body shaft is directly inserted into the bearing inner hole of the bearing of the engine cylinder body, then the rotary stay bar is inserted, the front end of the rotary stay bar is directly inserted into the position of the bell mouth, at the moment, the rotary knob is rotated, the threaded part on the rotary stay bar and the rear guide plate are matched with threads to rotate and push forwards, in the process of pushing, the front end part of the rotary stay bar is directly matched with the bell mouth to prop up the whole body shaft, so that the whole body shaft expands and contracts the compression spring, the whole body shaft expands, the inner hole of the bearing of the engine cylinder body is also expanded and hooked by the hooking part at the foremost end of the whole body shaft, hooking and fixing are formed, finally, the knocking hammer on the sliding rod part is used, and the bearing is slowly taken out of the engine cylinder body by slowly and outwards impacting.
It should be noted that the tip of the hooking part is also a semicircular hook structure.
The foregoing examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the patent and scope of the invention should be pointed out with reference to the appended claims.
Claims (1)
1. An auxiliary fixture for taking out a bearing by compression and expansion is characterized in that: comprises a pair of expansion hollow half shafts (1) which are matched with each other, wherein expansion grooves are formed in the inner sides of the expansion hollow half shafts (1), an expandable whole body shaft (2) is formed after the two expansion hollow half shafts (1) are mutually folded, an expansion middle hole (11) is formed in the whole body shaft after the expansion grooves on the two sides are folded, a sliding rod part (21) is arranged at the front part of the whole body shaft, a raised shaft shoulder part (22) is arranged in the middle part of the whole body shaft, a hooking part (23) which can be inserted into a bearing of an engine cylinder body (8) is arranged at the rear part of the whole body shaft, a front guide plate (3) and a rear guide plate (4) are arranged on the shaft shoulder part (22) in a penetrating manner, corresponding guide middle holes are formed in the middle parts of the front guide plate (3) and the rear guide plate (4), the guide middle holes of the rear guide plate (4) are internally threaded holes (41), the upper end and the lower end parts of the front guide plate (3) and the rear guide plate (4) are oppositely pulled and fixed through a pair of pin shafts (5), a spring shoulder part (22) is provided with a spring groove (24), a compression rod (7) is arranged in the middle part (7) and is provided with a compression rod (7), the compression rod (7) is arranged in the compression rod (7), the front end part of the rotary support rod (7) penetrates through the internal threaded hole (41), and an external threaded part matched with the internal threaded hole (41) is arranged on the rod body of the rotary support rod (7); the front end of inflation mesopore (11) is equipped with a loudspeaker form expansion port (12), the front end of rotatory vaulting pole (7) is equipped with a toper portion (71) that corresponds expansion port (12), toper portion (71) are inserted expansion port (12) and then can strut inflation mesopore (11) forward, and then make the outer mounting hole that expands of the hook portion (23) of whole body axle and hook the bearing of engine cylinder body (8), the cover is equipped with on slide bar portion (21) and strikes hammer (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711315354.5A CN107825065B (en) | 2017-12-12 | 2017-12-12 | Auxiliary tool for taking out bearing by compression and expansion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711315354.5A CN107825065B (en) | 2017-12-12 | 2017-12-12 | Auxiliary tool for taking out bearing by compression and expansion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107825065A CN107825065A (en) | 2018-03-23 |
| CN107825065B true CN107825065B (en) | 2024-05-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711315354.5A Active CN107825065B (en) | 2017-12-12 | 2017-12-12 | Auxiliary tool for taking out bearing by compression and expansion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107825065B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110524187A (en) * | 2019-07-24 | 2019-12-03 | 安徽千禧精密轴承制造有限公司 | Process equipment is used in a kind of production of intelligent bearing |
| CN112872266B (en) * | 2021-02-26 | 2022-10-28 | 徐州新大隆化工泵业制造有限公司 | Air hammer equipment with function of replacing wearing part and capable of processing common faults of piston |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5090102A (en) * | 1989-09-12 | 1992-02-25 | Lovell Paul H | Diesel injector sleeve remover |
| US5355574A (en) * | 1993-01-21 | 1994-10-18 | Inventive Fabrications, Inc. | Bearing changer |
| KR200239767Y1 (en) * | 2001-05-03 | 2001-10-12 | 김영권 | Bearing remover |
| DE202004014345U1 (en) * | 2004-09-13 | 2004-11-18 | Klann-Spezial-Werkzeugbau-Gmbh | Guide shell extraction and pressing device for motor vehicle has clamping jaws with stop webs at axial spacing from endfaces |
| CN102367728A (en) * | 2011-11-15 | 2012-03-07 | 中国石油化工集团公司 | Hydraulic anchor fluke pulling-out tool |
| CN203210310U (en) * | 2013-04-11 | 2013-09-25 | 浙江何仕汽车工具有限公司 | Inner bearing puller |
| CN203343986U (en) * | 2013-06-26 | 2013-12-18 | 中国人民解放军第五七二一工厂 | Tool for extracting bearing in blind hole |
| CN203831345U (en) * | 2014-05-12 | 2014-09-17 | 永城煤电控股集团有限公司 | Combined device for disassembling outer sleeve of small bearing of flexible shaft of coal mining machine |
| CN105364779A (en) * | 2015-12-17 | 2016-03-02 | 中国人民解放军装备学院昌平士官学校 | Tool for dismounting part in hole |
| CN206647532U (en) * | 2017-03-24 | 2017-11-17 | 广州市日鑫热能工程有限公司 | A kind of high temperature piston water pump axle sealing structure |
| CN207616003U (en) * | 2017-12-12 | 2018-07-17 | 江西五十铃发动机有限公司 | A kind of auxiliary mould taking out bearing using compression-expansion |
-
2017
- 2017-12-12 CN CN201711315354.5A patent/CN107825065B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5090102A (en) * | 1989-09-12 | 1992-02-25 | Lovell Paul H | Diesel injector sleeve remover |
| US5355574A (en) * | 1993-01-21 | 1994-10-18 | Inventive Fabrications, Inc. | Bearing changer |
| KR200239767Y1 (en) * | 2001-05-03 | 2001-10-12 | 김영권 | Bearing remover |
| DE202004014345U1 (en) * | 2004-09-13 | 2004-11-18 | Klann-Spezial-Werkzeugbau-Gmbh | Guide shell extraction and pressing device for motor vehicle has clamping jaws with stop webs at axial spacing from endfaces |
| CN102367728A (en) * | 2011-11-15 | 2012-03-07 | 中国石油化工集团公司 | Hydraulic anchor fluke pulling-out tool |
| CN203210310U (en) * | 2013-04-11 | 2013-09-25 | 浙江何仕汽车工具有限公司 | Inner bearing puller |
| CN203343986U (en) * | 2013-06-26 | 2013-12-18 | 中国人民解放军第五七二一工厂 | Tool for extracting bearing in blind hole |
| CN203831345U (en) * | 2014-05-12 | 2014-09-17 | 永城煤电控股集团有限公司 | Combined device for disassembling outer sleeve of small bearing of flexible shaft of coal mining machine |
| CN105364779A (en) * | 2015-12-17 | 2016-03-02 | 中国人民解放军装备学院昌平士官学校 | Tool for dismounting part in hole |
| CN206647532U (en) * | 2017-03-24 | 2017-11-17 | 广州市日鑫热能工程有限公司 | A kind of high temperature piston water pump axle sealing structure |
| CN207616003U (en) * | 2017-12-12 | 2018-07-17 | 江西五十铃发动机有限公司 | A kind of auxiliary mould taking out bearing using compression-expansion |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107825065A (en) | 2018-03-23 |
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