CN103737292A - Engine cam shaft lining installation device - Google Patents
Engine cam shaft lining installation device Download PDFInfo
- Publication number
- CN103737292A CN103737292A CN201310751212.9A CN201310751212A CN103737292A CN 103737292 A CN103737292 A CN 103737292A CN 201310751212 A CN201310751212 A CN 201310751212A CN 103737292 A CN103737292 A CN 103737292A
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- China
- Prior art keywords
- depression bar
- cam shaft
- tappet
- lining
- hollow depression
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- Pending
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- 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
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
- B23P19/027—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The invention discloses an engine cam shaft lining installation device which comprises a hollow press rod, a pull rod and a limit mechanism. A cam shaft lining is sleeved on the hollow press rod to be installed. The pull rod is movably installed in the hollow press rod, a pull spring enabling the pull rod to be reset is arranged between the bottom end of the pull rod and the inner side of the driving end of the hollow press rod, and an eccentric cam used for stretching the pull rod to move forwards is arranged at the stretching end of the hollow press rod. The limit mechanism comprises a circumferential location ball and an axial location assembly. The circumferential location ball is installed on the surface of the hollow press rod and matched with an oil hole of the cam shaft lining. The axial location assembly comprises a conical sleeve and a protrusion stretching in the radial direction. The protrusion is installed in the rod wall of the hollow press rod and corresponds to the end face of the cam shaft lining. The conical sleeve is fixedly installed on the pull rod and corresponds to the protrusion. When the pull rod drives the conical sleeve to move, the conical face of the conical sleeve extrudes the protrusion to enable the protrusion to protrude to the end face of the cam shaft lining. By means of the device, the circumferential and axial location accuracy of the oil ole of the cam shaft lining and an oil inclining hole in the cylinder body are improved, a plurality of linings can be installed once, and the working efficiency is improved.
Description
Technical field
The present invention relates to engine assembly field, particularly a kind of camshaft lining of engine erecting device.
Background technology
The cam shaft bush of engine is the vitals of engine valve actuating mechanism, when mounted, require its oil-hole location accurately to put in place, make oilhole on lining and run through the inclined oil hole of air (hereinafter to be referred as inclined oil hole of air) of crankshaft hole with camshaft hole and align, assurance engine oil gallery is unobstructed, otherwise affects the lubricant effect of engine.
At present, when engine single-piece production or small lot batch manufacture, as shown in Figure 1, the general species stage depression bar III of using, adopt manual mode of beaing to install, specifically as follows to the installation of cam shaft bush (hereinafter to be referred as lining) I: the requirement that must connect according to the oilhole IV of lining I and engine inclined oil hole of air, during mounting bush I, lining I oilhole direction need to be aimed to the corresponding circumferential bus of oilhole position on engine, general adopt end face locating slot or positioning key make on lining I oilhole direction and engine accordingly oilhole circumferential position one a pair of on, then, manually beat ladder depression bar III right side, make the stressed drive lining of depression bar III I be pressed into cylinder block camshaft hole to the front end face of ladder depression bar upper limit II and realize axial location, at this moment, lining I is press-fit into place, finally, operator checks oilhole alignment case, the needs that the have dislocation processing of doing over again, reinstall.
But, utilize above-mentioned instrument mounting bush I one by one, cannot meet batch production requirements, efficiency is low, time and effort consuming.
Summary of the invention
The present invention is in order to overcome defect in above-mentioned prior art, and a kind of camshaft lining of engine erecting device is provided, and can improve the circumferential position precision of inclined oil hole of air in the oilhole of lining and cylinder block, realizes mechanical semi-automation and press-fits, and increases work efficiency.
For achieving the above object, the invention provides a kind of camshaft lining of engine erecting device, comprising: hollow depression bar, cam shaft bush is enclosed within on hollow depression bar to install; Pull bar, it is inner that it is movably arranged on hollow depression bar, between pull bar bottom and hollow depression bar drive end inner side, is provided with the extension spring that makes pull bar return, is provided with the eccentric cam of stretching pull bar reach at hollow depression bar inserting end; Position-limit mechanism, it comprises circumferential location ball and axial location assembly, circumferentially location ball is arranged on hollow depression bar surface and with the oilhole of cam shaft bush and matches, axial location assembly comprises the tappet of tapered sleeve and radial expansion, tappet is arranged in the bar wall of hollow depression bar and is corresponding with the end face of cam shaft bush, tapered sleeve is fixedly mounted on pull bar and is corresponding with tappet, and when pull bar drives tapered sleeve to move, the conical surface extruding tappet of tapered sleeve is raised to the end face of cam shaft bush.
In technique scheme, axial location assembly also comprises the reseting spring leaf that drives tappet return, and its embedding is arranged in the bar wall of hollow depression bar.
In technique scheme, be provided with the mounting groove that reseting spring leaf is installed on the bar wall of the hollow depression bar near tappet, one end of reseting spring leaf is fixed in mounting groove and the installing hole of its other end insertion tappet.
In technique scheme, tappet and drive the number of the reseting spring leaf of this tappet to be 3 and circumferentially evenly arrange.
In technique scheme, the number of position-limit mechanism is 5 to 7, and it matches with engine cylinder block camshaft gear positions to be installed respectively.
In technique scheme, on hollow depression bar drive end lateral wall, be provided with and adjust the adjustment fork that location ball mates with oilhole circumferential position on engine cylinder block.
In technique scheme, eccentric cam rotates by flexible handle.
Compared with prior art, the present invention has following beneficial effect: by the movable pull bar of installing in hollow depression bar, drive axial location assembly to work, and by the surface at hollow depression bar, circumferential location ball is set and carries out spacing to lining, the circumferential position that can adjust hollow depression bar makes the oilhole of lining aim at circumferential position with cylinder block upper oil hole simultaneously, improve positional precision, adopt Simple hydraulic press to apply driving force to hollow depression bar, realize mechanical semi-automation and press-fit, increase work efficiency.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that existing depression bar is installed cam shaft bush;
Fig. 2 is camshaft lining of engine erecting device front view of the present invention;
Fig. 3 is camshaft lining of engine erecting device top view of the present invention;
Fig. 4 is partial enlarged drawing A in camshaft lining of engine erecting device of the present invention;
Fig. 5 is eccentric cam front view in camshaft lining of engine erecting device of the present invention;
Fig. 6 is eccentric cam top view in camshaft lining of engine erecting device of the present invention.
Mark the following drawings mark thereon by reference to the accompanying drawings:
The hollow depression bar of 1-, 2-pull bar, 4-eccentric cam, 5-flexible handle, 6-adjusts fork, 7-reseting spring leaf, 8-cam shaft bush, 11-drive end, 12-inserting end, 31-locates ball, 32-tapered sleeve, 33-tappet, 34-reseting spring leaf.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention is not subject to the restriction of the specific embodiment.
Camshaft lining of engine erecting device of the present invention is the requirement that must connect according to the oil of lining and engine oilhole, a kind of hollow pressure rod structure of specialized designs, by being set, position-limit mechanism lining I oilhole direction can be aimed to the corresponding circumferential bus of oilhole position on engine, specifically by adjusting fork, adjust hollow depression bar circumferential position, improve bushing oil hole circumferential position precision, then coordinating Simple hydraulic press to drive hollow depression bar to move press-fits lining, concrete spacing to hollow depression bar by adjusting hydraulic press stroke, can improve lining I oilhole axial location precision, can produce in batches.
As shown in Figure 1, as a kind of preferred embodiment, the camshaft lining of engine erecting device that the present embodiment provides comprises hollow depression bar 1, pull bar 2, position-limit mechanism (unmarked in figure), drives the extension spring 7(of pull bar 2 returns referring to Fig. 2), stretching pull bar 2 eccentric cams 4 of reach, the handle 5 of rotating eccentricity cam 4 activities and adjust the adjustment fork 6 of the circumferential position of hollow depression bar 1, handle 5 rotates by the through hole inserting on eccentric cam 4, and adjusting fork 6 can be screwed on the sidewall of drive end of hollow depression bar 1 by screw thread.Pull bar 2 is movably arranged on hollow depression bar 1 inside, extension spring 7 is located between drive end 11 inner sides of pull bar 2 bottoms and hollow depression bar 1, eccentric cam 4 middle parts are provided with the fluting of the front end that holds pull bar 2, the front end of pull bar 2 is rotatably connected by pin and eccentric cam 4, simultaneously the outer wall of eccentric cam 4 is connected on the front end face of inserting end 12 of hollow depression bar 1, when rotating eccentricity cam 4, by changing the radial distance of eccentric cam 4, stretch pull bar 2 forward, thereby make pull bar 2 drive axial location assemblies (unmarked in figure) work to be called for short lining to cam shaft bush 8() carry out spacing, finally utilize Simple hydraulic press (not shown) to drive the drive end 11 of hollow depression bar 1, hollow depression bar 1 drives cover cam shaft bush 8 to be thereon pressed into engine cam shaft hole (not shown).According to engine cylinder block camshaft gear number to be installed, the number of position-limit mechanism is selectively designed, the present embodiment is 5 to 7, it is located at respectively on hollow depression bar 1 and engine cylinder block camshaft shelves matched position to be installed, can complete the press-fiting of cam shaft bush 8 of whole engine simultaneously, registration, installation effectiveness is high, is applicable to batch jobs.
As shown in Figure 4, in such scheme, position-limit mechanism comprises that circumferential location ball 31(is referring to Fig. 1) and axial location assembly, wherein, circumferentially location ball 31 is arranged on hollow depression bar 1 upper position of matching with the oilhole of cam shaft bush 8, surface, and axial location assembly comprises the tappet 33 of tapered sleeve 32, radial expansion and drives the reseting spring leaf 34 of tappet 33 returns.Tappet 33 is arranged in the bar wall of hollow depression bar 1 and is corresponding with the end face of cam shaft bush 8, tapered sleeve 32 is fixedly mounted on pull bar 2 and is corresponding with tappet 33, when pull bar 2 drives tapered sleeve 32 to move, the conical surface of tapered sleeve 32 (unmarked in figure) extruding tappet 33 is raised to the end face of cam shaft bush 8, and then stops the single-way moving of cam shaft bush 8.Reseting spring leaf 34 embeds and is arranged in the bar wall of hollow depression bar 1, particularly, reseting spring leaf 34 can be designed as U-shaped, on the bar wall of the hollow depression bar 1 near tappet 33, be provided with the mounting groove (unmarked in figure) that reseting spring leaf 34 is installed, one end screw of reseting spring leaf 34 is fixed in mounting groove, and its other end inserts the installing hole (unmarked in figure) of tappet 33.In order better cam shaft bush 8 to be carried out to axial limiting, tappet 33 and drive the number of the reseting spring leaf 34 of this tappet 33 to be 3, being 120 degree circumferentially evenly arranges, tappet 33 can be designed as cylindrical, three tappets can be subject to agreeing to simultaneously tapered sleeve 32 the conical surface extruding so that be raised to the end face of cam shaft bush 8 simultaneously, spacing more firm.
Be below the concrete process of using this device:
Certainly, cam shaft bush 8 is before press-fiting, and the inclined oil hole of air that runs through crankshaft hole and camshaft hole processes.
1, depression bar 1 is put into by cylinder block edge cam axis hole, simultaneously, window from cylinder block side, by technological requirement, in the camshaft hole the place ahead that need to press-fit the position of lining, put into by hand a lining 8, depression bar 1 reach, this lining 8 is inserted in depression bar 1, then depression bar 1 enters the 2nd grade of camshaft hole, pack next lining 8 into, carry out packing into of 5-7 shelves lining successively, after the lining 8 that needs to install has packed into, by stirring, adjust fork 6 rotation depression bars 1, adjust the circumferential position of lining 8, make one by one the oilhole of lining 8 fall on the lip-deep location ball 31 of hollow depression bar 1, lining 8 circumferential location work on hollow depression bar 1 completes.
2, when lining to be installed 8 is enclosed within one by one the correspondence position of hollow depression bar 1 and has good positioning, simultaneously, hollow depression bar 1 is through the camshaft hole of cylinder block, cylinder block is delivered to press-fiting on station of equipment by hydraulic press, then rotate adjustment fork 6 and make it to be close together with hydraulic press horizontal location plate, realize oilhole and the cylinder block oilhole of lining 8 and circumferentially locate.
3, turning handle 5 rotating eccentricity cams 4, eccentric cam 4 moves forward with the common pull bar 2 of hollow depression bar 1 inside that drives of extension spring 7, the tapered sleeve 32 that makes to be fixed on pull bar 2 moves forward, the conical surface extruding of tapered sleeve 32 is arranged on and on hollow depression bar 1, is three uniform tappets 33 of 120 degree and does radial protrusion, and the side of three tappets 33 just makes lining 8 end faces (axially) limited.
4, click and press-fit button, Simple hydraulic press applies a thrust to the drive end 11 of hollow depression bar 1, and each lining 8 is done forward and slowly moved with hollow depression bar 1, until while compressing into the predefined extreme position of cylinder block camshaft hole, press-mounting stroke finishes, and all linings 8 have once press-fited.
5, when eccentric cam 4 rotates toward rightabout, the path of eccentric cam 4 and extension spring 7 actings in conjunction make pull bar 2 returns, tapered sleeve 32 on pull bar 2 moves backward, be arranged on and on hollow depression bar 1, be three uniform tappets 33 of 120 degree and not pushed by the conical surface of tapered sleeve 32, under the effect of U-shaped reseting spring leaf, do radial contraction action, at this moment, hollow depression bar 1 can, by pulling out manually from pressing the cylinder block camshaft hole of lining 8, enter the bushing press-mounting of next cylinder block.
Disclosed is above only specific embodiments of the invention, and still, the present invention is not limited thereto, and the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (7)
1. a camshaft lining of engine erecting device, is characterized in that, comprising:
Hollow depression bar, described cam shaft bush is enclosed within on described hollow depression bar to install;
Pull bar, it is inner that it is movably arranged on described hollow depression bar, between described pull bar bottom and described hollow depression bar drive end inner side, is provided with the extension spring that makes described pull bar return, is provided with the eccentric cam of the described pull bar reach that stretches at described hollow depression bar inserting end;
Position-limit mechanism, it comprises circumferential location ball and axial location assembly, described circumferential location ball is arranged on described hollow depression bar surface and with the oilhole of described cam shaft bush and matches, described axial location assembly comprises the tappet of tapered sleeve and radial expansion, described tappet is arranged in the bar wall of described hollow depression bar and is corresponding with the end face of described cam shaft bush, described tapered sleeve is fixedly mounted on described pull bar and is corresponding with described tappet, when described pull bar drives described tapered sleeve to move, the conical surface of described tapered sleeve pushes the end face that described tappet is raised to described cam shaft bush.
2. camshaft lining of engine erecting device according to claim 1, is characterized in that, described axial location assembly also comprises the reseting spring leaf that drives described tappet return, and its embedding is arranged in the bar wall of described hollow depression bar.
3. camshaft lining of engine erecting device according to claim 2, it is characterized in that, on the bar wall near the described hollow depression bar of described tappet, be provided with the mounting groove that described reseting spring leaf is installed, one end of described reseting spring leaf is fixed in described mounting groove and its other end inserts the installing hole of described tappet.
4. camshaft lining of engine erecting device according to claim 3, is characterized in that, described tappet and drive the number of the reseting spring leaf of this tappet to be 3 and circumferentially evenly arrange.
5. according to the arbitrary described camshaft lining of engine erecting device of claims 1 to 3, it is characterized in that, the number of described position-limit mechanism is 5 to 7, and it matches with engine cylinder block camshaft gear positions to be installed respectively.
6. camshaft lining of engine erecting device according to claim 5, is characterized in that, is provided with and adjusts the adjustment fork that described location ball mates with oilhole circumferential position on engine cylinder block on described hollow depression bar drive end lateral wall.
7. camshaft lining of engine erecting device according to claim 5, is characterized in that, described eccentric cam rotates by flexible handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310751212.9A CN103737292A (en) | 2013-12-31 | 2013-12-31 | Engine cam shaft lining installation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310751212.9A CN103737292A (en) | 2013-12-31 | 2013-12-31 | Engine cam shaft lining installation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103737292A true CN103737292A (en) | 2014-04-23 |
Family
ID=50494396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310751212.9A Pending CN103737292A (en) | 2013-12-31 | 2013-12-31 | Engine cam shaft lining installation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103737292A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114084370A (en) * | 2021-12-03 | 2022-02-25 | 中航沈飞民用飞机有限责任公司 | Method for mounting bushing of horizontal tail connecting mechanism of airplane |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1192959A1 (en) * | 1983-12-22 | 1985-11-23 | 6-Е Киевское Производственное Объединение "Авторемонт" | Apparatus for pressing-out camshaft sleeves from i.c.engine cylinder block |
| CN201187329Y (en) * | 2008-04-30 | 2009-01-28 | 新昌县新动柴油机制造有限公司 | Cam shaft bush mounting structure |
| CN201597014U (en) * | 2010-02-05 | 2010-10-06 | 广西玉柴机器股份有限公司 | Cylinder block camshaft lining pressing tool |
| JP2011255445A (en) * | 2010-06-08 | 2011-12-22 | Kobe Steel Ltd | Bush press fitting inspection device, its inspection method and program, and bush press-fit device |
| CN102950453A (en) * | 2011-08-29 | 2013-03-06 | 广西玉柴机器股份有限公司 | Camshaft bush installation tool of heavy-duty diesel engine |
| CN202780421U (en) * | 2012-07-17 | 2013-03-13 | 安徽天利动力股份有限公司 | Draw bush machine for assembling cylinder cam shaft hole bush of multicylinder diesel engine |
| CN203621880U (en) * | 2013-12-31 | 2014-06-04 | 广西玉柴机器股份有限公司 | Engine cam shaft bush installation device |
-
2013
- 2013-12-31 CN CN201310751212.9A patent/CN103737292A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1192959A1 (en) * | 1983-12-22 | 1985-11-23 | 6-Е Киевское Производственное Объединение "Авторемонт" | Apparatus for pressing-out camshaft sleeves from i.c.engine cylinder block |
| CN201187329Y (en) * | 2008-04-30 | 2009-01-28 | 新昌县新动柴油机制造有限公司 | Cam shaft bush mounting structure |
| CN201597014U (en) * | 2010-02-05 | 2010-10-06 | 广西玉柴机器股份有限公司 | Cylinder block camshaft lining pressing tool |
| JP2011255445A (en) * | 2010-06-08 | 2011-12-22 | Kobe Steel Ltd | Bush press fitting inspection device, its inspection method and program, and bush press-fit device |
| CN102950453A (en) * | 2011-08-29 | 2013-03-06 | 广西玉柴机器股份有限公司 | Camshaft bush installation tool of heavy-duty diesel engine |
| CN202780421U (en) * | 2012-07-17 | 2013-03-13 | 安徽天利动力股份有限公司 | Draw bush machine for assembling cylinder cam shaft hole bush of multicylinder diesel engine |
| CN203621880U (en) * | 2013-12-31 | 2014-06-04 | 广西玉柴机器股份有限公司 | Engine cam shaft bush installation device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114084370A (en) * | 2021-12-03 | 2022-02-25 | 中航沈飞民用飞机有限责任公司 | Method for mounting bushing of horizontal tail connecting mechanism of airplane |
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Application publication date: 20140423 |