CN203901215U - Tool for disassembling bearing bush in blind hole - Google Patents
Tool for disassembling bearing bush in blind hole Download PDFInfo
- Publication number
- CN203901215U CN203901215U CN201420325393.9U CN201420325393U CN203901215U CN 203901215 U CN203901215 U CN 203901215U CN 201420325393 U CN201420325393 U CN 201420325393U CN 203901215 U CN203901215 U CN 203901215U
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- CN
- China
- Prior art keywords
- hook
- blind hole
- drawing bar
- bearing
- screw mandrel
- Prior art date
- 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.)
- Withdrawn - After Issue
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Abstract
A tool for disassembling a bearing bush in a blind hole comprises a pull rod lead screw, a hook assembly, a hook installing base assembly, a supporting part, a drawing rod and a handle. The front end of the pull rod lead screw and the hook installing base assembly are assembled, and the rear end of the pull rod lead screw and the drawing rod are assembled to form a lead screw and nut transmission mechanism; the hook assembly is installed in the hook installing base assembly in a hinged mode; the supporting part is arranged outside the hook installing base assembly in a sleeved mode. When the bearing bush in the blind hole is disassembled, the front end of the supporting part is compressed on the end face of a bearing hole of a machine body, the rear end of the supporting part is assembled with the drawing rod, the supporting part provides supporting counter-force for the drawing rod, and the handle is installed at the rear end of the drawing rod. The tool has the advantages of being accurate in positioning and convenient to operate, and can disassemble the bearing bush in the blind hole intactly, and improve the working efficiency.
Description
Technical field
The utility model relates to a kind of bearing insert extracting tool, and especially a kind of instrument of dismantling blind hole middle (center) bearing lining, belongs to hand-operated tools technical field.
Background technology
As shown in Figure 1, 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.Because the rigging position of bearing insert 10 is spaces of a sealing, complex structure, adopts existing common extracting tool very easily to cause the damage to body 8 and bearing insert 10 bodies.
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, design the task of top priority that a kind of instrument of dismantling blind hole middle (center) bearing lining becomes aircraft maintenance enterprise.
Utility model content
The purpose of this utility model is the drawback for prior art, and the instrument of a kind of accurate positioning, easy to operate dismounting blind hole middle (center) bearing lining is provided.
Problem described in the utility model realizes with following technical proposals:
Dismantle an instrument for blind hole middle (center) bearing lining, it comprises pull bar screw mandrel, hanging hook assembly, hook mounting bracket assembly, supporting member, drawing bar and handgrip; Described pull bar screw mandrel front end is equipped with hook mounting bracket assembly, after rear end and the assembling of drawing bar, forms screw nut driven mechanism; Described hanging hook assembly is arranged in hook mounting bracket assembly in hinged way; Described supporting member is sleeved on hook mounting bracket assembly outside, 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, and supporting member is that drawing bar provides support counter-force; Described drawing rod rear end is installed handgrip.
The instrument of above-mentioned dismounting blind hole middle (center) bearing lining, described pull bar screw mandrel front end is provided with conical stretching face, is provided with in its back-end screw mandrel external screw thread, and described conical stretching face mates with hanging hook assembly, and described screw mandrel external screw thread mates with drawing bar.
The instrument of above-mentioned dismounting blind hole middle (center) bearing lining; described hanging hook assembly comprises one group of hook and an elasticity gathering ring; 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; the hinge hole mating with hook mounting bracket assembly is set on hook; hook front end medial surface is the circular arc mating surface mating with pull bar screw mandrel nose circle taper stretching face, the drawing clamping area that hook front end arranged outside is mated with bearing insert end face to be removed.
The instrument of above-mentioned dismounting blind hole middle (center) bearing lining, described hook mounting bracket assembly comprises hook mount pad and annular base, described annular base is provided with and the spherical groove of linking up with bottom shape and mating, annular base is screwed onto the rear end of hook mount pad, wedge shape annular groove and pull bar screw mandrel via hole are set on described hook mount pad, described wedge shape annular groove is communicated with the spherical groove on annular base, forms the R type annular groove that hook provides activity space.
The instrument of above-mentioned dismounting blind hole middle (center) bearing lining, described supporting member is the round mouth vessel structure that bottom is provided with through hole, in its bottom through-hole, bearing is installed, and by bearing cap by bearing seal.
The instrument of above-mentioned dismounting blind hole middle (center) bearing lining, described drawing bar is hollow rod member, and the drawing bar internal thread mating with pull bar screw mandrel external screw thread is set on its front end madial wall, is provided with in its back-end handgrip installing hole.
The instrument of above-mentioned dismounting blind hole middle (center) bearing lining, it is also provided with drawing bar support ring, and described drawing bar support ring is sleeved on drawing bar outside, 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 utility model is no less than the hook of 12 by quantity and forms hanging hook assembly; and this hanging hook assembly is hinged with hook mounting bracket assembly; in hook mounting bracket assembly, be provided with wedge shape annular groove and spherical groove; by wedge shape annular groove and spherical groove, consist of the R type annular groove that hook provides activity space; by elasticity, draw ring in simultaneously hook is connected in series, guaranteed the auto-reset function of hook.After screw mandrel pull bar of the present utility model and the assembling of drawing bar, form screw nut driven mechanism, can control drawing bar by handgrip rotates, drive pull bar screw mandrel to move horizontally, make the circular arc mating surface of pull bar screw mandrel nose circle taper stretching face and hook produce relative motion, thereby hook is rotated around jointed shaft, hanging hook assembly is strutted, and 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 utility model is sleeved on the outside of hook mounting bracket assembly, supporting member front end is pressed on body dead eye place end face, drawing bar front end compresses supporting member rear end, by supporting member, be that drawing bar provides support counter-force, by rotary handle, drive drawing bar to rotate, thereby make pull bar screw mandrel drive bearing insert to move horizontally by hanging hook assembly, finally make it from body blind hole, extract, complete the field-strip of bearing insert.In a word, the utlity model has accurate positioning, easy to operate feature, can not only in good condition blind hole middle (center) bearing lining be removed, and improve operating efficiency, for aircraft maintenance enterprise has created good economic benefit.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is aircraft body blind hole middle (center) bearing lining schematic diagram;
Fig. 2 is cross-sectional view of the present utility model;
Fig. 3 is the blast structure chart 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 the utility model course of work schematic diagram.
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 is drawn 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, handgrip installing hole, 6, drawing bar support ring, 7, handgrip, 8, body, 9, blind hole, 10, bearing insert.
The specific embodiment
Referring to Fig. 2, Fig. 3, the utility model comprises pull bar screw mandrel 1, hanging hook assembly 2, hook mounting bracket assembly 3, supporting member 4, drawing bar 5 and handgrip 7; Described pull bar screw mandrel 1 front end is equipped with hook mounting bracket assembly 3, after rear end and 5 assemblings of drawing bar, forms 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 hook mounting bracket assembly 3 outsides; Handgrip 7 is installed in described drawing bar 5 rear ends.
Referring to Fig. 3, pull bar screw mandrel 1 front end of the present utility model is provided with conical stretching face 1-1, is provided with in its back-end screw mandrel external screw thread 1-2, 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 utility model is provided with the round mouth vessel structure of through hole for bottom, bearing 4-1 is installed in its bottom through-hole, and by bearing cap 4-2, bearing 4-1 is sealed; Drawing bar 5 of the present utility model is hollow rod member, and the drawing bar internal thread 5-1 mating with the screw mandrel external screw thread 1-2 of pull bar screw mandrel 1 is set on its front end madial wall, is provided with in its back-end handgrip installing hole 5-2; The utility model is also provided with drawing bar support ring 6, and described drawing bar support ring 6 is sleeved on drawing bar 5 outsides, when to blind hole 9 middle (center) bearing lining 10 dismounting, drawing bar support ring 6 is sleeved in another dead eye of body 8, and drawing bar 5 is played a supportive role.
Referring to Fig. 4, Fig. 5; hanging hook assembly 2 of the present utility model comprises one group of hook 2-1 and an elasticity gathering ring 2-2; 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 in by elasticity and is connected in series; the hinge hole 2-3 mating with hook mounting bracket assembly 3 is set on hook 2-1; hook front end medial surface is the circular arc mating surface 2-4 mating with pull bar screw mandrel nose circle taper stretching face 1-1, the drawing clamping area 2-5 that hook front end arranged outside is mated with bearing insert 10 end faces to be removed.
Referring to Fig. 6, Fig. 7, hook mounting bracket assembly 3 of the present utility model 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 that links up with 2-1 bottom shape and mate, annular base 3-2 is screwed onto the rear end of hook mount pad 3-1, wedge shape annular groove 3-3 and pull bar screw mandrel via hole 3-4 are set on described hook mount pad 3-1, described wedge shape annular groove 3-3 is communicated with the spherical groove 3-5 on annular base, forms the R type annular groove that hook 2-1 provides activity space.
Referring to Fig. 8～Figure 10, the instrument that uses this dismounting blind hole middle (center) bearing lining is during to 9 middle (center) bearing linings 10 dismounting of blind hole 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 to hook mounting bracket assembly 3 outsides, supporting member 4 front ends are pressed on the dead eye place end face of body 8, drawing bar 5 is equipped with screw mandrel pull bar 1, drawing bar 5 front ends are compressed to supporting member 4 rear ends, by supporting member 4, for drawing bar 5, provide support counter-force; Then by handgrip 7, control 5 rotations of drawing bar, drive pull bar screw mandrel 1 to move horizontally, make pull bar screw mandrel 1 nose circle taper stretching face 1-1 and the circular arc mating surface 2-4 of hook 2-1 produce relative motion, thereby make to link up with 2-1, around jointed shaft, rotate, hanging hook assembly 2 is strutted; The drawing clamping area 2-5 that now links up with 2-1 is installed on bearing neck bush 10 end faces to be removed, continue rotary handle 7,5 rotations of drawing bar, thereby make pull bar screw mandrel 1 drive bearing insert 10 to move horizontally by hanging hook assembly 2, finally make it from the blind hole 9 of body 8, extract, complete the field-strip of bearing insert 10.
Claims (7)
1. an instrument of dismantling blind hole middle (center) bearing lining, 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 handgrip (7); Described pull bar screw mandrel (1) front end is equipped with hook mounting bracket assembly (3), after rear end and drawing bar (5) assembling, forms 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 hook mounting bracket assembly (3) outside, when blind hole (9) middle (center) bearing lining (10) is dismantled, 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, and supporting member (4) provides support counter-force for drawing bar (5); Handgrip (7) is installed in described drawing bar (5) rear end.
2. a kind of instrument of dismantling blind hole middle (center) bearing lining according to claim 1, it is characterized in that, described pull bar screw mandrel (1) front end is provided with conical stretching face (1-1), be provided with in its back-end screw mandrel external screw thread (1-2), 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).
3. a kind of instrument of dismantling blind hole middle (center) bearing lining according to claim 2, it is characterized in that, described hanging hook assembly (2) comprises one group of hook (2-1) and an elasticity gathering ring (2-2), 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 upper hinge hole (2-3) mating with hook mounting bracket assembly (3) that arranges of hook (2-1), hook front end medial surface is the circular arc mating surface (2-4) mating with pull bar screw mandrel nose circle taper stretching face (1-1), the drawing clamping area (2-5) that hook front end arranged outside is mated with bearing insert to be removed (10) end face.
4. a kind of instrument of dismantling blind hole middle (center) bearing lining according to claim 3, 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) of linking up with (2-1) bottom shape and mating, annular base (3-2) is screwed onto the rear end of hook mount pad (3-1), wedge shape annular groove (3-3) and pull bar screw mandrel via hole (3-4) are set on described hook mount pad (3-1), described wedge shape annular groove (3-3) is communicated with the spherical groove (3-5) on annular base, forming hook (2-1) provides the R type annular groove of activity space.
5. a kind of instrument of dismantling blind hole middle (center) bearing lining according to claim 4, it is characterized in that, described supporting member (4) is provided with the circular dishware structure of through hole for bottom, bearing (4-1) is installed in its bottom through-hole, and by bearing cap (4-2), bearing (4-1) is sealed.
6. a kind of instrument of dismantling blind hole middle (center) bearing lining according to claim 5, it is characterized in that, described drawing bar (5) is hollow rod member, the drawing bar internal thread (5-1) mating with the screw mandrel external screw thread (1-2) of pull bar screw mandrel (1) is set on its front end madial wall, is provided with in its back-end handgrip installing hole (5-2).
7. a kind of instrument of dismantling blind hole middle (center) bearing lining according to claim 6, 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 blind hole (9) middle (center) bearing lining (10) is dismantled, 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 |
|---|---|---|---|
| CN201420325393.9U CN203901215U (en) | 2014-06-18 | 2014-06-18 | Tool for disassembling bearing bush in blind hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420325393.9U CN203901215U (en) | 2014-06-18 | 2014-06-18 | Tool for disassembling bearing bush in blind hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203901215U true CN203901215U (en) | 2014-10-29 |
Family
ID=51775510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420325393.9U Withdrawn - After Issue CN203901215U (en) | 2014-06-18 | 2014-06-18 | Tool for disassembling bearing bush in blind hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203901215U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104015159A (en) * | 2014-06-18 | 2014-09-03 | 中国人民解放军第五七二一工厂 | Special tool for disassembling bearing bushing in blind hole |
| CN107984427A (en) * | 2017-12-01 | 2018-05-04 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of aero-engine is with disassembling bushing device and application method in blind hole |
| CN108274431A (en) * | 2018-01-24 | 2018-07-13 | 北京安达维尔机械维修技术有限公司 | Provision for disengagement for aircraft air-conditioning system valve thin-wall bush |
| CN109890569A (en) * | 2016-10-07 | 2019-06-14 | 乔瓦尼·安德里娜 | For taking out and being inserted into the device of bushing |
| CN111390826A (en) * | 2020-04-30 | 2020-07-10 | 广西玉柴机器股份有限公司 | Tool for disassembling blind hole bearing |
-
2014
- 2014-06-18 CN CN201420325393.9U patent/CN203901215U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104015159A (en) * | 2014-06-18 | 2014-09-03 | 中国人民解放军第五七二一工厂 | Special tool for disassembling bearing bushing in blind hole |
| CN104015159B (en) * | 2014-06-18 | 2015-12-16 | 中国人民解放军第五七二一工厂 | A kind of blind hole middle (center) bearing bushing dismounting specific purpose tool |
| CN109890569A (en) * | 2016-10-07 | 2019-06-14 | 乔瓦尼·安德里娜 | For taking out and being inserted into the device of bushing |
| CN107984427A (en) * | 2017-12-01 | 2018-05-04 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of aero-engine is with disassembling bushing device and application method in blind hole |
| CN108274431A (en) * | 2018-01-24 | 2018-07-13 | 北京安达维尔机械维修技术有限公司 | Provision for disengagement for aircraft air-conditioning system valve thin-wall bush |
| CN111390826A (en) * | 2020-04-30 | 2020-07-10 | 广西玉柴机器股份有限公司 | Tool for disassembling blind hole bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141029 Effective date of abandoning: 20151216 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |