CN102042282B - Buffer locking and positioning device - Google Patents
Buffer locking and positioning device Download PDFInfo
- Publication number
- CN102042282B CN102042282B CN2010105842953A CN201010584295A CN102042282B CN 102042282 B CN102042282 B CN 102042282B CN 2010105842953 A CN2010105842953 A CN 2010105842953A CN 201010584295 A CN201010584295 A CN 201010584295A CN 102042282 B CN102042282 B CN 102042282B
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- China
- Prior art keywords
- locating stud
- positioning
- card key
- positioning device
- boss
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- 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.)
- Expired - Fee Related
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Abstract
The invention discloses a buffer locking and positioning device which is used for solving a technical problem that a buffer device of a traditional hydrocylinder or cylinder is easy to damage because of large gaps. In the technical scheme of the invention , the buffer locking and positioning device comprises a buffer jacket (2), a blocking key (3), a spring (4) and a positioning pin (5), wherein a screwed hole (14) is arranged on the blocking key (3), the spring (4) is arranged in the screwed hole (14), and the positioning pin (5) is shaped into a boss . The upper end of the boss is a screwed end (12), the lower end of the boss is a pin shaft end (11), and the pin shaft end (11) is matched with the screwed hole (14) on the blocking key (3). A positioning hole (13) is arranged on the buffer jacket (2) and matched with the screwed end (12) of the positioning pin (5). Because of designing the positioning pin and the positioning spring, all parts are mutually locked, gaps among a shaft washer, the buffer jacket, the shaft blocking key, a piston, a piston rod and a piston body are decreased, and the service life of the hydrocylinder or the cylinder is prolonged from about half a year in the prior art to more than five years.
Description
Technical field
The present invention relates to a kind of damping device, particularly a kind of latching buffer clamping and positioning device that is used for hydraulic jack or cylinder.
Background technique
With reference to Fig. 3; The damping device of existing hydraulic jack or cylinder comprises that shaft block ring 9, cushion collar 2 and axle are with card key 3; Back-up ring 9 is positioned on the round platform of guide sleeve 1 right-hand member endoporus; Be to the right cushion collar 2 successively with axle with card key 3, back-up ring 9 and cushion collar 2 and axle be with card key 3 Spielpassung, because shaft block ring 9 and cushion collar 2, axle are bigger with blocking between key 3, piston 6, piston rod 8, the piston body 7 gap; Hydraulic jack or cylinder operate in the territory, internal buffer because compression shock makes shaft block ring 9, cushion collar 2, axle with producing very big inertial force between card key 3, the piston 6; Cause shaft block ring 9 to come off, cause related components to produce mechanical collision, thereby damage oil cylinder or cylinder.Generally speaking, be about half a year the working life of oil cylinder or cylinder.
Summary of the invention
For the damping device that overcomes existing hydraulic jack or cylinder because the gap is big the deficiency of rapid wear, the present invention provides a kind of latching buffer clamping and positioning device.Through the design of locating stud and retaining spring, each part is locked each other, can reduce shaft block ring and cushion collar, axle with the gap between card key, piston, piston rod, the piston body, the working life of improving hydraulic jack or cylinder.
The technical solution adopted for the present invention to solve the technical problems: a kind of latching buffer clamping and positioning device comprises that cushion collar 2 and axle with card key 3, is characterized in that: also comprise spring 4, locating stud 5; There is tapped hole 14 said card key 3 axial centre positions; Be placed with spring 4 in the tapped hole 14; Said locating stud 5 boss shapes, locating stud 5 axial centre positions are oil-through holes 10, locating stud 5 boss lower ends are to have externally threaded threaded end 11; Locating stud 5 boss upper end is a bearing pin end 12, and the tapped hole 14 on threaded end 11 has outside thread and blocks key 3 cooperates; Have two positioning holes 13 on the said cushion collar 2, cooperate with the bearing pin end 12 of locating stud 5.
The invention has the beneficial effects as follows: owing to use through the design of locating stud and retaining spring; Each part is locked each other; Reduced shaft block ring and cushion collar, axle with the gap between card key, piston, piston rod, the piston body, brought up to more than 5 years about the half a year of the working life of hydraulic jack or cylinder by existing technology.
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated.
Description of drawings
Fig. 1 is a latching buffer clamping and positioning device structural representation of the present invention.
Fig. 2 is the enlarged view at A place among Fig. 1.
Fig. 3 is a background technique damping device structural representation.
Among the figure, the 1-guide sleeve, the 2-cushion collar, the 3-axle is with card key, 4-spring, 5-locating stud, 6-piston, 7-cylinder body, 8-piston rod, 9-back-up ring, 10-oil-through hole, 11-threaded end, 12-bearing pin end, 13-positioning hole, 14-tapped hole.
Embodiment
Following examples are with reference to Fig. 1～2.
Latching buffer clamping and positioning device of the present invention comprises that cushion collar 2, axle are with card key 3, spring 4 and locating stud 5.Said card key has two for 3 every groups, and pairing is used, and there is tapped hole 14 card key 3 axial centre positions; Be placed with spring 4 in the tapped hole 14; Said locating stud 5 boss shapes, locating stud 5 axial centre positions are oil-through holes 10, locating stud 5 boss lower ends are to have externally threaded threaded end 11; Locating stud 5 boss upper end is a bearing pin end 12, and the tapped hole 14 on threaded end 11 has outside thread and blocks key 3 cooperates; Have two positioning holes 13 on the said cushion collar 2, cooperate with the bearing pin end 12 of locating stud 5.
Concrete installation process: the first, at first locating stud 5 is screwed in the tapped hole 14 of axle with card key 3, it is that bearing pin end 12 is less than about axle with card key 3 cylindricals 1～2mm that locating stud 5 is screwed into the position.The second, retaining spring 4 is put into the tapped hole 14 of axle with card key 3, and pin slightly with hand.The 3rd, the locating stud that assembles 5, axle are put into piston rod 8 one end circlip grooves together with card key 3, retaining spring 4, axle is little Spielpassung with the internal diameter, thickness and circlip groove external diameter, the width that block key 3, guarantees axially, assembly precision radially.The 4th, pin axle downwards with card key 3, pack cushion collar 2 into axle with on card key 3 cylindricals, and push-tight, slowly rotate, cushion collar 2 positioning holes 13 are alignd with the bearing pin end 12 of locating stud 5.The 5th; Counterclockwise locating stud 5 has upwards been revolved with the positioning hole 13 of cushion collar 2 with the yi word pattern screwdriver and to have alignd till locating stud 5 can't upwards revolve again; Because the bearing pin end 12 of locating stud 5 is less than threaded end 11; When being screwed into counterclockwise to a certain degree, the threaded end 11 of locating stud 5 can be cushioned cover 2 and block, so can't upwards revolve again.The 6th, piston 6 is packed on the piston rod 8 corresponding cylindricals, and sturdy with axle with card key 3, piston 6 endoporus and piston rod 8 cylindricals are little Spielpassung, guarantee radially assembly precision.The 7th; Repeating step the first, second, third, fourth, the 5th; The cushion collar that assembles 2, axle are packed in piston rod 8 the other end circlip grooves with blocking key 3, retaining spring 4, locating stud 5 successively; The cylindrical length and piston 6 thickness of piston rod 8 dress pistons 6 are little Spielpassung, guarantee axial assembly precision.The 8th, the assembly that installs is packed in cylinder body 7 endoporus.The 9th, guide sleeve 1 is packed into.Like this under the effect of pressure oil; Hydraulic oil gets into locating stud 5 threaded end 12 through the oil-through hole 10 of locating stud 5; Because the area of locating stud 5 threaded end 11 is bigger than bearing pin end 12 areas, the power that locating stud 5 lower ends make progress is stressed greater than upper end institute, and retaining spring 4 also can upwards withstand locating stud 5; So locating stud 5 can be withstood on topmost forever, each part location that is locked each other.
Through fatigue test checking, latching buffer clamping and positioning device related components reliable lock of the present invention, connect fasteningly, the location is accurate, and hydraulic jack or cylinder working life is at 43200～60000 hours, and dismantles more convenient.
Claims (3)
1. a latching buffer clamping and positioning device comprises that cushion collar (2) and axle with card key (3), is characterized in that: also comprise spring (4), locating stud (5); There is tapped hole (14) said card key (3) axial centre position; Be placed with spring (4) in the tapped hole (14); Said locating stud (5) boss shape, locating stud (5) axial centre position is oil-through hole (10), locating stud (5) boss lower end is to have externally threaded threaded end (11); Locating stud (5) boss upper end is bearing pin end (12), and the tapped hole (14) on threaded end (11) has outside thread and blocks key (3) cooperates; Have two positioning holes (13) on the said cushion collar (2), cooperate with the bearing pin end (12) of locating stud (5).
2. latching buffer clamping and positioning device according to claim 1 is characterized in that: the internal diameter of said card key (3) and the external diameter of circlip groove are little Spielpassung.
3. latching buffer clamping and positioning device according to claim 1 is characterized in that: the thickness of said card key (3) and the width of circlip groove are little Spielpassung.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105842953A CN102042282B (en) | 2010-12-09 | 2010-12-09 | Buffer locking and positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105842953A CN102042282B (en) | 2010-12-09 | 2010-12-09 | Buffer locking and positioning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102042282A CN102042282A (en) | 2011-05-04 |
| CN102042282B true CN102042282B (en) | 2012-07-18 |
Family
ID=43908716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105842953A Expired - Fee Related CN102042282B (en) | 2010-12-09 | 2010-12-09 | Buffer locking and positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102042282B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235205B (en) * | 2014-07-18 | 2016-08-17 | 湘潭电机股份有限公司 | A kind of axial direction positioning device |
| CN104675798B (en) * | 2015-03-06 | 2016-09-21 | 徐州奥博机械科技有限公司 | Adjustable type mechanical type self locking hydraulic cylinder |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1800657A (en) * | 2005-01-03 | 2006-07-12 | 沃尔沃建造设备控股（瑞典）有限公司 | Cylinder cushion device |
| CN101235837A (en) * | 2008-03-07 | 2008-08-06 | 汪立平 | Constant throttle -type amortization structure high pressure oil cylinder |
| CN201896812U (en) * | 2010-12-09 | 2011-07-13 | 西安昆仑工业（集团）有限责任公司 | Buffering, locking and positioning device used for hydrocylinder or air cylinder |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002005118A (en) * | 2000-06-26 | 2002-01-09 | Howa Mach Ltd | Cushion device |
| JP4478822B2 (en) * | 2000-11-24 | 2010-06-09 | Ｓｍｃ株式会社 | Cushion mechanism of fluid equipment |
-
2010
- 2010-12-09 CN CN2010105842953A patent/CN102042282B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1800657A (en) * | 2005-01-03 | 2006-07-12 | 沃尔沃建造设备控股（瑞典）有限公司 | Cylinder cushion device |
| CN101235837A (en) * | 2008-03-07 | 2008-08-06 | 汪立平 | Constant throttle -type amortization structure high pressure oil cylinder |
| CN201896812U (en) * | 2010-12-09 | 2011-07-13 | 西安昆仑工业（集团）有限责任公司 | Buffering, locking and positioning device used for hydrocylinder or air cylinder |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2002-161905A 2002.06.07 |
| JP特开2002-5118A 2002.01.09 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102042282A (en) | 2011-05-04 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120718 Termination date: 20141209 |
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| EXPY | Termination of patent right or utility model |