CN102878148B - Deflection-preventing multistage oil cylinder - Google Patents
Deflection-preventing multistage oil cylinder Download PDFInfo
- Publication number
- CN102878148B CN102878148B CN201210378457.7A CN201210378457A CN102878148B CN 102878148 B CN102878148 B CN 102878148B CN 201210378457 A CN201210378457 A CN 201210378457A CN 102878148 B CN102878148 B CN 102878148B
- Authority
- CN
- China
- Prior art keywords
- cylinder
- guide cylinder
- guide
- piston
- deflection
- 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.)
- Active
Links
Landscapes
- Actuator (AREA)
Abstract
The invention discloses a deflection-preventing multistage oil cylinder which comprises a guide portion, a multistage cylinder portion, an upper connecting plate and a lower plate. The guide portion comprises an inner guide cylinder, a middle guide cylinder and an outer guide cylinder, the multistage cylinder portion comprises an outer cylinder barrel, an inner cylinder barrel, a piston rod and a cylinder bottom, the bottom of the inner guide cylinder is connected with a middle guide cylinder piston, the bottom of the middle guide cylinder is connected with an outer guide cylinder piston, at least three convex ribs which extend axially are peripherally uniformly distributed on the inner wall of each of the outer guide cylinder and the middle guide cylinder, and grooves matching with the convex ribs are arranged on the outer wall of each of the outer guide cylinder piston and the middle guide cylinder piston. By the aid of sliding fit among the convex ribs arranged on the inner walls of the guide cylinders and the grooves matching with the convex ribs and arranged on the guide cylinder pistons, the oil cylinder is guided to move by fit of the convex ribs and the grooves when working, and accordingly deflection of the oil cylinder in moving is effectively prevented.
Description
Technical field
The present invention relates to technical field of hydraulic oil cylinder, especially a kind of multi-stage oil cylinder of anti-deflection.
Background technique
Hydraulic jack, as a kind of power plant, is widely used in all trades and professions.In some special industry, require that oil cylinder has stationarity in the position of the state of stretching out and retracted mode, in running, deflection angle need in controlled range, and oil cylinder can not occur by during ectocine the phenomenon that deflection angle is large.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiency in prior art, provides a kind of Deflection-preventinmultistage multistage oil cylinder, produces the larger phenomenon of deflection angle effectively to prevent oil cylinder when being subject to ectocine.
The technical solution adopted for the present invention to solve the technical problems is: a kind of Deflection-preventinmultistage multistage oil cylinder, comprise targeting part, be eccentrically set on the Multi-stage cylinder part in targeting part, connect the upper linking plate of targeting part and Multi-stage cylinder part front end, connect the lower shoe of targeting part and Multi-stage cylinder section bottom, targeting part comprises from inside to outside the interior guide cylinder of ring set successively, middle guide cylinder and outer guide cylinder, Multi-stage cylinder part comprises outer cylinder, inner cylinder tube, the cylinder bottom being arranged on the piston rod in inner cylinder tube and being fixed on bottom outer cylinder, middle guide cylinder piston is connected with bottom interior guide cylinder, outer guide cylinder piston is connected with bottom middle guide cylinder, on the inwall of outer guide cylinder and middle guide cylinder, circumference is evenly equipped with at least three axially extended convex tendon bars respectively, the outer wall of outer guide cylinder piston and the outer wall of middle guide cylinder piston has the groove matched with described convex tendon bar respectively.
Specifically, the front end of the front end of described interior guide cylinder, the front end of middle guide cylinder and outer guide cylinder respectively correspondence is fixed with interior guide pin bushing, middle guide pin bushing and outer bush, piston rod head is connected with bar head, interior guide pin bushing is fixedly connected with upper linking plate respectively with bar head, and outer guide cylinder is fixedly connected with lower plate respectively with cylinder bottom.
Be connected with interior guide sleeve before described inner cylinder tube, outer cylinder front end is connected with outer guide sleeve, and interior guide sleeve endoporus and piston rod are slidably matched, and outer guide sleeve endoporus and inner cylinder tube outer wall are slidably matched.
The invention has the beneficial effects as follows: the present invention adds the targeting part be made up of multistage guide cylinder outside Multi-stage cylinder part, and by the convex tendon bar that is arranged on guide cylinder inwall and be arranged on guide cylinder piston and being slidably matched between the groove that convex tendon bar matches, make oil cylinder operationally, utilize the cooperation between convex tendon bar and groove to guide mobile, thus effectively prevent the deflection of oil cylinder in moving process.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is structural representation of the present invention.
Fig. 2 is the cross section enlarged diagram that in Fig. 1, A-A analyses and observe rear targeting part.
Guide sleeve 19. outer guide sleeve in guide pin bushing 16. outer bush 17. bar head 18. in guide pin bushing 15. in guide cylinder piston 11. outer guide cylinder piston 12. convex tendon bar 13. groove 14. in guide cylinder 5. outer guide cylinder 6. outer cylinder 7. inner cylinder tube 8. piston rod 9. cylinder bottom 10. in guide cylinder 4. in 1. upper linking plate 2. lower plates 3. in figure
Embodiment
The present invention is further illustrated with preferred embodiment by reference to the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
The multi-stage oil cylinder of a kind of anti-deflection as shown in Figure 1 and Figure 2, comprise targeting part, the Multi-stage cylinder part be eccentrically set in targeting part, the front end of targeting part and Multi-stage cylinder part is connected to a fixed by upper linking plate 1, and the bottom of targeting part and Multi-stage cylinder part is connected to a fixed by lower shoe 2.
Targeting part comprises from inside to outside the interior guide cylinder 3 of ring set successively, middle guide cylinder 4 and outer guide cylinder 5, middle guide cylinder piston 10 is connected with bottom interior guide cylinder 3, be connected with outer guide cylinder piston 11 bottom middle guide cylinder 4, the front end of the front end of interior guide cylinder 3, the front end of middle guide cylinder 4 and outer guide cylinder 5 respectively correspondence is fixed with interior guide pin bushing 14, middle guide pin bushing 15 and outer bush 16.
Multi-stage cylinder part comprises outer cylinder 6, inner cylinder tube 7, the cylinder bottom 9 that is arranged on the piston rod 8 in inner cylinder tube 6 and is fixed on bottom outer cylinder 6, the center of guide cylinder 3 in inner cylinder tube 7 off-centring, the front end of inner cylinder tube 7 is connected with interior guide sleeve 18, the front end of outer cylinder 6 is connected with outer guide sleeve 19, interior guide sleeve 18 endoporus and piston rod 8 are slidably matched, and outer guide sleeve 19 endoporus and inner cylinder tube 7 outer wall are slidably matched.Be connected with bar head 17 at piston rod 8 head, interior guide pin bushing 14 is fixedly connected with upper linking plate 1 respectively with bar head 17, and outer guide cylinder 5 is fixedly connected with lower plate 2 respectively with cylinder bottom 9, when Multi-stage cylinder componental movement, drives targeting part synchronizing moving by upper linking plate 1.
On the inwall of guide cylinder 5 and middle guide cylinder 4 outside, circumference is evenly equipped with four axially extended convex tendon bars 12 respectively, on the outer wall of outer guide cylinder piston 11, the outer wall of middle guide cylinder piston 10 has the groove 13 matched with described convex tendon bar 12 respectively.When multi-stage oil cylinder works, convex tendon bar 12 on middle guide cylinder 4 along in groove 13 on guide cylinder piston 10 move, convex tendon bar 12 on outer guide cylinder 5 moves along the groove 13 on outer guide cylinder piston 11, utilize the cooperation between convex tendon bar 12 and groove 13 to guide the movement of multi-stage oil cylinder, thus effectively prevent the deflection of multi-stage oil cylinder in moving process.
Above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (2)
1. a Deflection-preventinmultistage multistage oil cylinder, comprise targeting part, be eccentrically set on the Multi-stage cylinder part in targeting part, connect the upper linking plate (1) of targeting part and Multi-stage cylinder part front end, connect the lower shoe (2) of targeting part and Multi-stage cylinder section bottom, targeting part comprises from inside to outside the interior guide cylinder (3) of ring set successively, middle guide cylinder (4) and outer guide cylinder (5), Multi-stage cylinder part comprises outer cylinder (6), inner cylinder tube (7), be arranged on the piston rod (8) in inner cylinder tube (7) and be fixed on the cylinder bottom (9) of outer cylinder (6) bottom, it is characterized in that: interior guide cylinder (3) bottom is connected with middle guide cylinder piston (10), middle guide cylinder (4) bottom is connected with outer guide cylinder piston (11), on the inwall of outer guide cylinder (5) and middle guide cylinder (4), circumference is evenly equipped with at least three axially extended convex tendon bars (12) respectively, the outer wall of outer guide cylinder piston (11) and the outer wall of middle guide cylinder piston (10) has the groove (13) matched with described convex tendon bar (12) respectively, the front end of described interior guide cylinder (3), the front end of middle guide cylinder (4) and the front end of outer guide cylinder (5) respectively correspondence are fixed with interior guide pin bushing (14), middle guide pin bushing (15) and outer bush (16), piston rod (8) head is connected with bar head (17), interior guide pin bushing (14) is fixedly connected with upper linking plate (1) respectively with bar head (17), outer guide cylinder (5) is fixedly connected with lower plate (2) respectively with cylinder bottom (9).
2. Deflection-preventinmultistage multistage oil cylinder according to claim 1, it is characterized in that: described inner cylinder tube (7) front end is connected with interior guide sleeve (18), outer cylinder (6) front end is connected with outer guide sleeve (19), interior guide sleeve (18) endoporus and piston rod (8) are slidably matched, and outer guide sleeve (19) endoporus and inner cylinder tube (7) outer wall are slidably matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210378457.7A CN102878148B (en) | 2012-09-29 | 2012-09-29 | Deflection-preventing multistage oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210378457.7A CN102878148B (en) | 2012-09-29 | 2012-09-29 | Deflection-preventing multistage oil cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102878148A CN102878148A (en) | 2013-01-16 |
| CN102878148B true CN102878148B (en) | 2015-05-06 |
Family
ID=47479601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210378457.7A Active CN102878148B (en) | 2012-09-29 | 2012-09-29 | Deflection-preventing multistage oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102878148B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6530749B2 (en) * | 2013-11-15 | 2019-06-12 | ファーノ−ワシントン・インコーポレーテッド | Self-operated cot |
| CN103899591A (en) * | 2014-03-25 | 2014-07-02 | 东南大学 | Multi-stage hydraulic lifting rod based on circular-bushing eccentric guide |
| CN105041775B (en) * | 2015-08-25 | 2017-01-18 | 中国航空工业集团公司西安飞机设计研究所 | Anti-rotation two-level double-acting hydraulic actuator cylinder |
| CN114273975A (en) * | 2021-12-23 | 2022-04-05 | 北京精雕精密机械制造有限公司 | Integrated on-machine measuring device of numerical control machine tool and working method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1132829A (en) * | 1994-11-24 | 1996-10-09 | Smc株式会社 | Reciprocating cylinder |
| CN2723763Y (en) * | 2004-09-09 | 2005-09-07 | 李学龙 | Anti-bias wearing clutch hydraulic main cylinder for automobile |
| CN201407232Y (en) * | 2009-05-16 | 2010-02-17 | 阜新市祥泽液压机械有限公司 | Telescopic sleeve hydraulic cylinder |
| CN102046985A (en) * | 2008-06-09 | 2011-05-04 | 联邦国有制企业“圣彼得堡Malakhit机械制造海事局” | Combined telescopic double-acting hydraulic cylinder for substantial strokes |
| CN202301277U (en) * | 2011-10-26 | 2012-07-04 | 潘井仁 | Multistage oil cylinder for hydraulic hoist |
| CN202833412U (en) * | 2012-09-29 | 2013-03-27 | 江苏昌力油缸有限公司 | Anti-deflection multilevel oil cylinder |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3741265B2 (en) * | 2001-05-18 | 2006-02-01 | ユアサ工機株式会社 | Telescopic pole |
-
2012
- 2012-09-29 CN CN201210378457.7A patent/CN102878148B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1132829A (en) * | 1994-11-24 | 1996-10-09 | Smc株式会社 | Reciprocating cylinder |
| CN2723763Y (en) * | 2004-09-09 | 2005-09-07 | 李学龙 | Anti-bias wearing clutch hydraulic main cylinder for automobile |
| CN102046985A (en) * | 2008-06-09 | 2011-05-04 | 联邦国有制企业“圣彼得堡Malakhit机械制造海事局” | Combined telescopic double-acting hydraulic cylinder for substantial strokes |
| CN201407232Y (en) * | 2009-05-16 | 2010-02-17 | 阜新市祥泽液压机械有限公司 | Telescopic sleeve hydraulic cylinder |
| CN202301277U (en) * | 2011-10-26 | 2012-07-04 | 潘井仁 | Multistage oil cylinder for hydraulic hoist |
| CN202833412U (en) * | 2012-09-29 | 2013-03-27 | 江苏昌力油缸有限公司 | Anti-deflection multilevel oil cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102878148A (en) | 2013-01-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102878148B (en) | Deflection-preventing multistage oil cylinder | |
| CN202209329U (en) | Double-piston-rod relative motion oil cylinder | |
| CN102852896B (en) | A kind of Double-action multistage hydraulic oil cylinder with solid piston rod | |
| CN202833410U (en) | Multi-stage hydro-cylinder with buffering function | |
| CN104196819A (en) | Double-purpose through hole type four-level oil cylinder | |
| CN204625035U (en) | A kind of telescoping mechanism saving arm for hoisting crane four | |
| CN204900405U (en) | Welding formula level four hydro -cylinder for nonoculture | |
| CN105650059A (en) | Double-acting two-stage hydraulic cylinder | |
| CN202833412U (en) | Anti-deflection multilevel oil cylinder | |
| CN105673608A (en) | Double-acting two-stage hydraulic cylinder with built-in auxiliary oil ducts | |
| CN204253496U (en) | Built-in auxiliary oil channel formula double-action two-stage hydraulic cylinder | |
| CN105298986A (en) | Crane slender telescopic cylinder | |
| CN202690578U (en) | Rapid oil cylinder | |
| CN205446262U (en) | Two effect two -stage pneumatic cylinders | |
| CN204572619U (en) | A kind of multi-stage expansion cylinder | |
| CN216554728U (en) | Two-stage telescopic oil cylinder | |
| CN104632756A (en) | Two-way telescopic quick-changing oil cylinder | |
| CN201588902U (en) | Gas controlled damping support spring | |
| CN202646222U (en) | Oil cylinder and hydraulic system | |
| CN107747573B (en) | A kind of Telescopic protection system | |
| CN204403030U (en) | Two bar Hydraulic Cylinder | |
| CN201554814U (en) | Pneumatic-control damping supporting spring with double diversion trenches | |
| CN205154803U (en) | Multistage synchronous telescope pneumatic cylinder | |
| CN104728205A (en) | Hydraulic oil cylinder for cantilever crane of pump truck | |
| CN204692230U (en) | There is the oil cylinder of two step velocitys |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213118 No. 111, Furong Road, Hengshanqiao Town, Wujin District, Changzhou City, Jiangsu Province Patentee after: JIANGSU CHANGLI TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: 213118 No. 111, Furong Road, Hengshanqiao Town, Wujin District, Changzhou City, Jiangsu Province Patentee before: JIANGSU CHANGLI HYDRAULIC CYLINDER Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |