CN104015159B - A kind of blind hole middle (center) bearing bushing dismounting specific purpose tool - Google Patents
A kind of blind hole middle (center) bearing bushing dismounting specific purpose tool Download PDFInfo
- Publication number
- CN104015159B CN104015159B CN201410272217.8A CN201410272217A CN104015159B CN 104015159 B CN104015159 B CN 104015159B CN 201410272217 A CN201410272217 A CN 201410272217A CN 104015159 B CN104015159 B CN 104015159B
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- Prior art keywords
- hook
- drawing bar
- blind hole
- mounting bracket
- screw mandrel
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- 230000013011 mating Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- 230000003319 supportive effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005474 detonation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
-
- 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
- B25B27/062—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 using screws
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supports Or Holders For Household Use (AREA)
- Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
Abstract
A kind of blind hole middle (center) bearing bushing dismounting specific purpose tool, belong to hand-operated tools technical field, it comprises pull bar screw mandrel, hanging hook assembly, hook mounting bracket assembly, supporting member, drawing bar and hand handle; Described pull bar screw mandrel front end is equipped with hook mounting bracket assembly, forms screw nut driven mechanism after rear end and drawing bar assemble; Described hanging hook assembly is arranged in hook mounting bracket assembly in hinged way; Described supporting member is sleeved on outside hook mounting bracket assembly, and when to blind hole middle (center) bearing bushing dismounting, supporting member front end is pressed on the dead eye place end face of body, and rear end and drawing bar are equipped with, and supporting member is that drawing bar provides support counter-force; Described drawing rod rear end installs hand handle.The present invention has accurate positioning, easy to operate feature, can not only be removed by blind hole middle (center) bearing lining in good condition, and improve operating efficiency.
Description
Technical field
The present invention relates to a kind of bearing insert extracting tool, especially a kind of blind hole middle (center) bearing bushing dismounting specific purpose tool, belongs to hand-operated tools technical field.
Background technology
As shown in Figure 1, being in the aircraft body 8 in maintenance process, after wing is removed, is stubborn problems to the dismounting of the bearing insert 10 in fuselage interior blind hole 9.Rigging position due to bearing insert 10 is a closed space, complex structure, adopts existing common extracting tool very easily to cause damage to body 8 and bearing insert 10 body.
As everyone knows, be arranged on carry-on all parts all very strict to quality requirement, and price is very expensive, the damage of parts will bring huge economic loss, therefore, the task of top priority that a kind of specific purpose tool for blind hole middle (center) bearing bushing dismounting becomes aircraft maintenance enterprise is designed.
Summary of the invention
The object of the invention is to the drawback for prior art, a kind of accurate positioning, easy to operate blind hole middle (center) bearing bushing dismounting specific purpose tool are provided.
Problem of the present invention realizes with following technical proposals:
A kind of blind hole middle (center) bearing bushing dismounting specific purpose tool, it comprises pull bar screw mandrel, hanging hook assembly, hook mounting bracket assembly, supporting member, drawing bar and hand handle; Described pull bar screw mandrel front end is equipped with hook mounting bracket assembly, forms screw nut driven mechanism after rear end and drawing bar assemble; Described hanging hook assembly is arranged in hook mounting bracket assembly in hinged way; Described supporting member is sleeved on outside hook mounting bracket assembly, and when to blind hole middle (center) bearing bushing dismounting, supporting member front end is pressed on the dead eye place end face of body, and rear end and drawing bar are equipped with, and supporting member is that drawing bar provides support counter-force; Described drawing rod rear end installs hand handle.
Above-mentioned blind hole middle (center) bearing bushing dismounting specific purpose tool, described pull bar screw mandrel front end is provided with conical stretching face, is provided with screw mandrel external screw thread in its back-end, and described conical stretching face is mated with hanging hook assembly, and described screw mandrel external screw thread mates with drawing bar.
Above-mentioned blind hole middle (center) bearing bushing dismounting specific purpose tool; described hanging hook assembly comprises one group of hook and an elasticity draws ring in; described hook number is no less than 12; their one end are hinged with hook mounting bracket assembly; the other end draws ring serial connection in by elasticity; hook arranges the hinge hole mated with hook mounting bracket assembly; hook leading inside face is the circular arc mating surface mated with pull bar screw mandrel nose circle taper stretching face, and hook front end outer side arranges the drawing clamping area mated with bearing insert end face to be removed.
Above-mentioned blind hole middle (center) bearing bushing dismounting specific purpose tool, described hook mounting bracket assembly comprises hook mount pad and annular base, described annular base is provided with and the spherical groove linked up with bottom shape and mate, annular base is screwed onto the rear end of hook mount pad, described hook mount pad is arranged wedge shape annular groove and pull bar screw mandrel via hole, described wedge shape annular groove is communicated with the spherical groove on annular base, is formed as linking up with the R type annular groove providing activity space.
Above-mentioned blind hole middle (center) bearing bushing dismounting specific purpose tool, described supporting member is the round mouth vessel structure that bottom is provided with through hole, in its bottom through-hole, install bearing, and by bearing cap by bearing seal.
Above-mentioned blind hole middle (center) bearing bushing dismounting specific purpose tool, described drawing bar is hollow rod, its leading inside wall arranges the drawing bar internal thread mated with pull bar screw mandrel external screw thread, is provided with hand in its back-end installing hole.
Above-mentioned blind hole middle (center) bearing bushing dismounting specific purpose tool, it is also provided with drawing bar support ring, and described drawing bar support ring is sleeved on outside drawing bar, when to blind hole middle (center) bearing bushing dismounting, drawing bar support ring is sleeved in another dead eye of body, drawing bar is played a supportive role.
The hook that the present invention is no less than 12 by quantity forms hanging hook assembly; and this hanging hook assembly is hinged with hook mounting bracket assembly; wedge shape annular groove and spherical groove is provided with in hook mounting bracket assembly; the R type annular groove that hook provides activity space is consisted of by wedge shape annular groove and spherical groove; draw ring in by elasticity hook is connected in series simultaneously, ensure that the auto-reset function of hook.Screw nut driven mechanism is formed after screw mandrel pull bar of the present invention and drawing bar assemble, rotate controlling drawing bar by hand, pull bar screw mandrel is driven to move horizontally, the circular arc mating surface of pull bar screw mandrel nose circle taper stretching face and hook is made to produce relative motion, thus hook is rotated around jointed shaft, strutted by hanging hook assembly, the drawing clamping area of hook is installed on bearing neck bush end face to be removed, completes the clamping and positioning to blind hole middle (center) bearing lining.Supporting member of the present invention is sleeved on the outside of hook mounting bracket assembly, supporting member front end is pressed on axis bearing bore place end face, drawing bar front end compresses supporting member rear end, be that drawing bar provides support counter-force by supporting member, drawing bar is driven to rotate by rotary handle, thus make pull bar screw mandrel drive bearing insert to move horizontally by hanging hook assembly, finally make it extract from body blind hole, complete the field-strip of bearing insert.In a word, the present invention has accurate positioning, easy to operate feature, can not only be removed by blind hole middle (center) bearing lining in good condition, and improve operating efficiency, for aircraft maintenance enterprise creates good economic benefit.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is aircraft body blind hole middle (center) bearing lining schematic diagram;
Fig. 2 is cross-sectional view of the present invention;
Fig. 3 is the detonation configuration figure of Fig. 2;
Fig. 4 is hanging hook assembly cross-sectional view;
Fig. 5 is the side view of hanging hook assembly;
Fig. 6 is hook mounting bracket assembly cross-sectional view;
Fig. 7 is the side view of hook mounting bracket assembly;
Fig. 8 ~ Figure 10 is course of work schematic diagram of the present invention.
In figure, each list of reference numerals is: 1, pull bar screw mandrel, 1-1, conical stretching face, 1-2, screw mandrel external screw thread, 2, hanging hook assembly, 2-1, hook, 2-2, elasticity draws ring in, 2-3, hinge hole, 2-4, circular arc mating surface, 2-5, drawing clamping area, 3, hook mounting bracket assembly, 3-1, hook mount pad, 3-2, annular base, 3-3, wedge shape annular groove, 3-4, pull bar screw mandrel via hole, 3-5, spherical groove, 4, supporting member, 4-1, bearing, 4-2, bearing cap, 5, drawing bar, 5-1, drawing bar internal thread, 5-2, hand is installing hole, 6, drawing bar support ring, 7, hand handle, 8, body, 9, blind hole, 10, bearing insert.
Detailed description of the invention
Referring to Fig. 2, Fig. 3, the present invention includes pull bar screw mandrel 1, hanging hook assembly 2, hook mounting bracket assembly 3, supporting member 4, drawing bar 5 and hand 7; Described pull bar screw mandrel 1 front end is equipped with hook mounting bracket assembly 3, and rear end and drawing bar 5 assemble rear composition screw nut driven mechanism; Described hanging hook assembly 2 is arranged in hook mounting bracket assembly 3 in hinged way; Described supporting member 4 is sleeved on outside hook mounting bracket assembly 3; Hand is installed 7 in described drawing bar 5 rear end.
Referring to Fig. 3, pull bar screw mandrel 1 front end of the present invention is provided with conical stretching face 1-1, is provided with screw mandrel external screw thread 1-2 in its back-end, and described conical stretching face 1-1 mates with hanging hook assembly 2, and described screw mandrel external screw thread 1-2 mates with drawing bar 5; Supporting member 4 of the present invention is provided with the round mouth vessel structure of through hole for bottom, installs bearing 4-1 in its bottom through-hole, and is sealed by bearing 4-1 by bearing cap 4-2; Drawing bar 5 of the present invention is hollow rod, its leading inside wall arranges the drawing bar internal thread 5-1 mated with the screw mandrel external screw thread 1-2 of pull bar screw mandrel 1, is provided with hand in its back-end installing hole 5-2; The present invention is also provided with drawing bar support ring 6, and described drawing bar support ring 6 is sleeved on outside drawing bar 5, when dismantling blind hole 9 middle (center) bearing lining 10, being sleeved in another dead eye of body 8, playing a supportive role drawing bar support ring 6 to drawing bar 5.
Referring to Fig. 4, Fig. 5; hanging hook assembly 2 of the present invention comprises one group of hook 2-1 and elasticity and draws ring 2-2 in; described hook 2-1 quantity is no less than 12; their one end are hinged with hook mounting bracket assembly 3; the other end draws ring 2-2 serial connection in by elasticity; hook 2-1 arranges the hinge hole 2-3 mated with hook mounting bracket assembly 3; hook leading inside face is the circular arc mating surface 2-4 mated with pull bar screw mandrel nose circle taper stretching face 1-1, and hook front end outer side arranges the drawing clamping area 2-5 mated with bearing insert 10 end face to be removed.
Referring to Fig. 6, Fig. 7, hook mounting bracket assembly 3 of the present invention comprises hook mount pad 3-1 and annular base 3-2, described annular base 3-2 is provided with and the spherical groove 3-5 linking up with 2-1 bottom shape and mate, annular base 3-2 is screwed onto the rear end of hook mount pad 3-1, described hook mount pad 3-1 is arranged wedge shape annular groove 3-3 and pull bar screw mandrel via hole 3-4, described wedge shape annular groove 3-3 is communicated with the spherical groove 3-5 on annular base, is formed as linking up with the R type annular groove that 2-1 provides activity space.
Referring to Fig. 8 ~ Figure 10, use this bearing insert tool special for dismounting to when blind hole 9 middle (center) bearing lining 10 is dismantled on aircraft body 8, first pull bar screw mandrel 1 and hanging hook assembly 2 and hanging hook assembly mount pad 3 are assembled together, make it pass bearing insert 10 and be deep in body blind hole 9; Again supporting member 4 is sleeved on outside hook mounting bracket assembly 3, supporting member 4 front end is made to be pressed on the dead eye place end face of body 8, drawing bar 5 and screw mandrel pull bar 1 are equipped with, drawing bar 5 front end are compressed supporting member 4 rear end, provides support counter-force by supporting member 4 for drawing bar 5; Then control drawing bar 5 by hand 7 to rotate, pull bar screw mandrel 1 is driven to move horizontally, make pull bar screw mandrel 1 nose circle taper stretching face 1-1 produce relative motion with the circular arc mating surface 2-4 of hook 2-1, thus hook 2-1 is rotated around jointed shaft, hanging hook assembly 2 is strutted; The drawing clamping area 2-5 now linking up with 2-1 is installed on bearing neck bush 10 end face to be removed, continue rotary handle 7, drawing bar 5 rotates, thus make pull bar screw mandrel 1 drive bearing insert 10 to move horizontally by hanging hook assembly 2, finally make it extract from the blind hole 9 of body 8, complete the field-strip of bearing insert 10.
Claims (5)
1. a blind hole middle (center) bearing bushing dismounting specific purpose tool, is characterized in that, it comprises pull bar screw mandrel (1), hanging hook assembly (2), hook mounting bracket assembly (3), supporting member (4), drawing bar (5) and hand (7); Described pull bar screw mandrel (1) front end is equipped with hook mounting bracket assembly (3), forms screw nut driven mechanism after rear end and drawing bar (5) assemble; Described hanging hook assembly (2) is arranged in hook mounting bracket assembly (3) in hinged way; Described supporting member (4) is sleeved on hook mounting bracket assembly (3) outside, when dismantling blind hole (9) middle (center) bearing lining (10), supporting member (4) front end is pressed on the dead eye place end face of body (8), rear end and drawing bar (5) are equipped with, and supporting member (4) provides support counter-force for drawing bar (5); Hand is installed (7) in described drawing bar (5) rear end;
Described pull bar screw mandrel (1) front end is provided with conical stretching face (1-1), is provided with screw mandrel external screw thread (1-2) in its back-end, and described conical stretching face (1-1) is mated with hanging hook assembly (2), and described screw mandrel external screw thread (1-2) is mated with drawing bar (5);
Described hanging hook assembly (2) comprises one group of hook (2-1) and an elasticity draws ring (2-2) in, described hook (2-1) quantity is no less than 12, their one end are hinged with hook mounting bracket assembly (3), the other end draws ring (2-2) serial connection in by elasticity, at the hinge hole (2-3) that the upper setting of hook (2-1) is mated with hook mounting bracket assembly (3), hook leading inside face is the circular arc mating surface (2-4) mated with pull bar screw mandrel nose circle taper stretching face (1-1), hook front end outer side arranges the drawing clamping area (2-5) mated with bearing insert to be removed (10) end face.
2. a kind of blind hole middle (center) bearing bushing dismounting specific purpose tool according to claim 1, it is characterized in that, described hook mounting bracket assembly (3) comprises hook mount pad (3-1) and annular base (3-2), described annular base (3-2) is provided with and the spherical groove (3-5) linked up with (2-1) bottom shape and mate, annular base (3-2) is screwed onto the rear end of hook mount pad (3-1), described hook mount pad (3-1) is arranged wedge shape annular groove (3-3) and pull bar screw mandrel via hole (3-4), described wedge shape annular groove (3-3) is communicated with the spherical groove (3-5) on annular base, be formed as linking up with the R type annular groove that (2-1) provides activity space.
3. a kind of blind hole middle (center) bearing bushing dismounting specific purpose tool according to claim 2, it is characterized in that, described supporting member (4) is provided with the circular dishware structure of through hole for bottom, installs bearing (4-1) in its bottom through-hole, and is sealed by bearing (4-1) by bearing cap (4-2).
4. a kind of blind hole middle (center) bearing bushing dismounting specific purpose tool according to claim 3, it is characterized in that, described drawing bar (5) is hollow rod, its leading inside wall arranges the drawing bar internal thread (5-1) mated with the screw mandrel external screw thread (1-2) of pull bar screw mandrel (1), is provided with hand in its back-end installing hole (5-2).
5. a kind of blind hole middle (center) bearing bushing dismounting specific purpose tool according to claim 1 or 4, it is characterized in that, it is also provided with drawing bar support ring (6), described drawing bar support ring (6) is sleeved on drawing bar (5) outside, when dismantling blind hole (9) middle (center) bearing lining (10), drawing bar support ring (6) is sleeved in another dead eye of body (8), drawing bar (5) is played a supportive role.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410272217.8A CN104015159B (en) | 2014-06-18 | 2014-06-18 | A kind of blind hole middle (center) bearing bushing dismounting specific purpose tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410272217.8A CN104015159B (en) | 2014-06-18 | 2014-06-18 | A kind of blind hole middle (center) bearing bushing dismounting specific purpose tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104015159A CN104015159A (en) | 2014-09-03 |
| CN104015159B true CN104015159B (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410272217.8A Active CN104015159B (en) | 2014-06-18 | 2014-06-18 | A kind of blind hole middle (center) bearing bushing dismounting specific purpose tool |
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Families Citing this family (6)
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| CN105200875B (en) * | 2015-08-24 | 2017-01-18 | 河南高达铁路机械设备有限公司 | Multifunctional extractor for GLC turnout eccentric sleeve |
| CN106312914B (en) * | 2016-11-24 | 2018-04-06 | 安徽江淮汽车集团股份有限公司 | Cup, diff. side bearing dismantles accessory |
| CN108326794A (en) * | 2018-04-23 | 2018-07-27 | 安徽江淮汽车集团股份有限公司 | The extracting tool of gear box oil capping |
| CN110082017B (en) * | 2019-05-08 | 2024-10-22 | 北京理工大学 | Bearing bush separation clamp |
| CN113021244A (en) * | 2021-02-09 | 2021-06-25 | 中国航发哈尔滨东安发动机有限公司 | Sealing ring assembling device |
| CN115070694B (en) * | 2022-07-19 | 2023-07-04 | 华芯半导体科技有限公司 | Mounting device and mounting tool |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2136109Y (en) * | 1992-07-24 | 1993-06-16 | 周方平 | Internal jaw for bearing |
| FR2716824A1 (en) * | 1994-03-04 | 1995-09-08 | Facom | Bearing or bush extractor from shafts or housings |
| CN201389829Y (en) * | 2009-04-21 | 2010-01-27 | 天津赛瑞机器设备有限公司 | Double hook detacher |
| CN201597015U (en) * | 2010-03-12 | 2010-10-06 | 哈尔滨飞机工业集团有限责任公司 | Pawl used for removing bushings from blind holes |
| CN201807883U (en) * | 2010-04-29 | 2011-04-27 | 广西玉柴机器股份有限公司 | Disassembling tool for sand box positioning pin bush |
| CN202062341U (en) * | 2011-02-28 | 2011-12-07 | 宣化钢铁集团有限责任公司 | Tapered bearing outer ring taking device |
| CN202271151U (en) * | 2011-06-27 | 2012-06-13 | 成都飞机工业（集团）有限责任公司 | Dismounting device for sliding bearing |
| CN203245813U (en) * | 2013-04-24 | 2013-10-23 | 哈尔滨飞机工业集团有限责任公司 | Bush dismantling tool |
| CN203901215U (en) * | 2014-06-18 | 2014-10-29 | 中国人民解放军第五七二一工厂 | Tool for disassembling bearing bush in blind hole |
-
2014
- 2014-06-18 CN CN201410272217.8A patent/CN104015159B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2136109Y (en) * | 1992-07-24 | 1993-06-16 | 周方平 | Internal jaw for bearing |
| FR2716824A1 (en) * | 1994-03-04 | 1995-09-08 | Facom | Bearing or bush extractor from shafts or housings |
| CN201389829Y (en) * | 2009-04-21 | 2010-01-27 | 天津赛瑞机器设备有限公司 | Double hook detacher |
| CN201597015U (en) * | 2010-03-12 | 2010-10-06 | 哈尔滨飞机工业集团有限责任公司 | Pawl used for removing bushings from blind holes |
| CN201807883U (en) * | 2010-04-29 | 2011-04-27 | 广西玉柴机器股份有限公司 | Disassembling tool for sand box positioning pin bush |
| CN202062341U (en) * | 2011-02-28 | 2011-12-07 | 宣化钢铁集团有限责任公司 | Tapered bearing outer ring taking device |
| CN202271151U (en) * | 2011-06-27 | 2012-06-13 | 成都飞机工业（集团）有限责任公司 | Dismounting device for sliding bearing |
| CN203245813U (en) * | 2013-04-24 | 2013-10-23 | 哈尔滨飞机工业集团有限责任公司 | Bush dismantling tool |
| CN203901215U (en) * | 2014-06-18 | 2014-10-29 | 中国人民解放军第五七二一工厂 | Tool for disassembling bearing bush in blind hole |
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| Publication number | Publication date |
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| CN104015159A (en) | 2014-09-03 |
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