CN202811639U - Random displacement locking cylinder - Google Patents
Random displacement locking cylinder Download PDFInfo
- Publication number
- CN202811639U CN202811639U CN201220466945.9U CN201220466945U CN202811639U CN 202811639 U CN202811639 U CN 202811639U CN 201220466945 U CN201220466945 U CN 201220466945U CN 202811639 U CN202811639 U CN 202811639U
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- Prior art keywords
- locking cylinder
- piston rod
- fan
- hydraulic fluid
- fluid port
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- Expired - Lifetime
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Abstract
The utility model discloses a random displacement locking cylinder which comprises a cylinder body, a piston rod, a piston, a guide sleeve, a rodless cavity oil port and a rod cavity oil port, wherein the front end of the cylinder body is fixedly connected with a locking cylinder barrel and an end cover; the front end of the piston rod penetrates through the end cover; the piston rod in the locking cylinder barrel is sequentially provided with a moving plug, a tapered wedge sleeve and a compression spring which are contacted with one another; the locking cylinder barrel behind the moving plug is provided with an oil port; the front end of the compression spring is contacted with the end cover; the locking cylinder barrel in front of the tapered wedge sleeve is provided with a vent hole; more than two fan-shaped bearing bushes are arranged between the tapered wedge sleeve and the piston rod; the tapered wedge sleeve and the fan-shaped bearing bushes are provided with matched circular conical surfaces with lower front parts and higher rear parts; the fan-shaped bearing bushes are axially positioned between two adjacent end surfaces of the guide sleeve and the end cover. According to the random displacement locking cylinder, the piston rod at a random stroke position can be locked, and the displacement of the piston rod can be defected; and the locking is firm and reliable, and the safety is good.
Description
Technical field
The utility model relates to a kind of locking cylinder.
Background technique
The locking cylinder that uses at present generally adopts the structure of hydraulic lock, namely at the filler opening place hydraulic lock is set, prevents that the mode that fluid refluxes from arriving the purpose that piston rod is locked, but inevitably there was a small amount of leakage phenomenon in hydraulic element after service time was slightly long, cause being difficult to realize accurate locking, particularly under some heavily loaded operating modes, there is potential safety hazard.
The model utility content
The purpose of this utility model is for the prior art above shortcomings, and a kind of any displacement locking cylinder is provided, and it all can realize locking in the arbitrary distance of run position of piston rod, and locking firmly, reliably, and Security is good.
For achieving the above object, any displacement locking cylinder of the present utility model, comprise cylinder body, piston rod, piston, guide sleeve, the rodless cavity hydraulic fluid port, the rod chamber hydraulic fluid port, it is characterized in that being fixed with locking cylinder barrel and end cap at the front end of cylinder body, the front end of piston rod passes end cap, be provided with successively contacted trip plug on the piston rod in the locking cylinder barrel, cover and Compress Spring are carved in taper, locking cylinder barrel at trip plug rear is provided with hydraulic fluid port, the front end of Compress Spring contacts with end cap, the locking cylinder barrel of carving the place ahead of cover in taper is provided with exhaust port, carve the fan-shaped bearing shell that also is provided with between cover and the piston rod more than two lobes in taper, taper is carved cover and is provided with the low early and high after conical surface that matches with fan-shaped bearing shell, and fan-shaped bearing shell is axially between two adjacent faces at guide sleeve and end cap.
When hydraulic fluid port of the present utility model passed into without high pressure oil, cover was carved in the taper of Compress Spring pusher, and taper is carved and is enclosed within radially the inwardly fan-shaped bearing shell of extruding, and fan-shaped bearing shell locking piston rod arrives the purpose of locking; When needing release, hydraulic fluid port passes into high pressure oil, promotes the trip plug, the cover reach is carved in taper, and fan-shaped bearing shell can move radially, thereby unclamps piston rod, passes into high pressure oil by rodless cavity hydraulic fluid port or rod chamber hydraulic fluid port again, can realize stretching out or retracting of piston rod; The utility model has firm, the reliable advantage of locking by mechanical interlocking;
As further improvement of the utility model, described rodless cavity hydraulic fluid port links to each other with a hydraulic lock by pipeline, and the rod chamber hydraulic fluid port links to each other with the filler opening of this hydraulic lock by pipeline; Can realize double locking, further improve the soundness of locking;
As further improvement of the utility model, be provided with position transducer in the rear end of cylinder body, in piston rod, be provided with and detect the hole, the probe of position transducer is positioned at and detects the hole; Can accurately detect the displacement amount of piston rod;
As further improvement of the utility model, the rodless cavity of described cylinder body also links to each other with a repairing one-way valve; Can to the repairing of the rodless cavity of oil cylinder, guarantee the long-term normal work of oil cylinder;
In sum, the utility model all can be realized locking in the arbitrary distance of run position of piston rod, and accurately detects the displacement amount of piston rod, and locking firmly, reliably, and Security is good.
Description of drawings
Fig. 1 is the utility model embodiment's plan view.
Fig. 2 is the Q-Q sectional view of Fig. 1.
Fig. 3 is the utility model embodiment's hydraulic schematic diagram.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Such as Fig. 1, Fig. 2 and shown in Figure 3, this any displacement locking cylinder, comprise cylinder body 1, piston rod 2, piston 3, guide sleeve 4, rodless cavity hydraulic fluid port 5, rod chamber hydraulic fluid port 6, front end at cylinder body 1 is fixed with locking cylinder barrel 7 and end cap 8 by connecting bolt, the front end of piston rod 2 passes end cap 8, be provided with successively contacted trip plug 9 on the piston rod 2 in locking cylinder barrel 7, cover 10 and butterfly Compress Spring 11 are carved in taper, locking cylinder barrel 7 at trip plug 9 rears is provided with hydraulic fluid port 12, the front end of butterfly Compress Spring 11 contacts with end cap 8, the locking cylinder barrel 7 of carving the place ahead of cover 10 in taper is provided with exhaust port 13, taper carve the cover 10 and piston rod 2 between also be provided with the fan-shaped bearing shell 14 of three lobes, taper is carved cover 10 and is provided with the low early and high after conical surface that matches with fan-shaped bearing shell 14, fan-shaped bearing shell 14 axial between two adjacent faces of guide sleeve 4 and end cap 8; Described rodless cavity hydraulic fluid port 5 links to each other with a hydraulic lock 15 by pipeline, and rod chamber hydraulic fluid port 6 links to each other by the filler opening of pipeline with this hydraulic lock 15, and the rodless cavity of cylinder body 1 also links to each other with a repairing one-way valve 16; Be provided with position transducer 17 in the rear end of cylinder body 1, be provided with in piston rod 2 and detect the hole, the probe 18 of position transducer 17 is positioned at and detects the hole;
When hydraulic fluid port of the present utility model 12 passes into without high pressure oil, cover 10 is carved in the 11 pusher tapers of butterfly Compress Spring, and guide sleeve 4 can prevent that with end cap 8 fan-shaped bearing shell 14 from moving axially, and taper is carved cover 10 and radially inwardly pushed fan-shaped bearing shell 14, fan-shaped bearing shell 14 locking piston rods 2 arrive the purpose of locking; When needing release, hydraulic fluid port 12 passes into high pressure oil, cover 10 reaches are carved in promotion trip plug 9, taper, exhaust port 13 can be avoided forming pressurized air at locking cylinder barrel 7, taper is carved cover 10 and is unclamped fan-shaped bearing shell 14, and fan-shaped bearing shell 14 can move radially, thereby unclamps piston rod 2, pass into high pressure oil by rodless cavity hydraulic fluid port 5 or rod chamber hydraulic fluid port 6 again, can realize stretching out or retracting of piston rod 2; Add the effect of hydraulic lock 15, can realize double locking, have firm, the reliable advantage of locking; Position transducer 17 can accurately detect the displacement amount of piston rod; Repairing one-way valve 16 can to the repairing of the rodless cavity of oil cylinder, guarantee the long-term normal work of oil cylinder.
Claims (4)
1. any displacement locking cylinder, comprise cylinder body, piston rod, piston, guide sleeve, the rodless cavity hydraulic fluid port, the rod chamber hydraulic fluid port, it is characterized in that being fixed with locking cylinder barrel and end cap at the front end of cylinder body, the front end of piston rod passes end cap, be provided with successively contacted trip plug on the piston rod in the locking cylinder barrel, cover and Compress Spring are carved in taper, locking cylinder barrel at trip plug rear is provided with hydraulic fluid port, the front end of Compress Spring contacts with end cap, the locking cylinder barrel of carving the place ahead of cover in taper is provided with exhaust port, carve the fan-shaped bearing shell that also is provided with between cover and the piston rod more than two lobes in taper, taper is carved cover and is provided with the low early and high after conical surface that matches with fan-shaped bearing shell, and fan-shaped bearing shell is axially between two adjacent faces at guide sleeve and end cap.
2. any displacement locking cylinder as claimed in claim 1 is characterized in that described rodless cavity hydraulic fluid port links to each other with a hydraulic lock by pipeline, and the rod chamber hydraulic fluid port links to each other with the filler opening of this hydraulic lock by pipeline.
3. any displacement locking cylinder as claimed in claim 1 or 2 is characterized in that being provided with position transducer in the rear end of cylinder body, is provided with to detect the hole in piston rod, and the probe of position transducer is positioned at and detects the hole.
4. any displacement locking cylinder as claimed in claim 1 or 2 is characterized in that the rodless cavity of described cylinder body also links to each other with a repairing one-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220466945.9U CN202811639U (en) | 2012-09-14 | 2012-09-14 | Random displacement locking cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220466945.9U CN202811639U (en) | 2012-09-14 | 2012-09-14 | Random displacement locking cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202811639U true CN202811639U (en) | 2013-03-20 |
Family
ID=47870521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220466945.9U Expired - Lifetime CN202811639U (en) | 2012-09-14 | 2012-09-14 | Random displacement locking cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202811639U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362896A (en) * | 2013-07-23 | 2013-10-23 | 云南兴长江实业有限公司 | Safe locking device suitable for hydraulic oil cylinder |
| CN103775430A (en) * | 2013-11-15 | 2014-05-07 | 杜雨轩 | Spiral self-locking hydraulic cylinder |
| CN104100594A (en) * | 2014-07-06 | 2014-10-15 | 上海宏信设备工程有限公司 | Composite oblique cone self-locking hydraulic oil cylinder |
| CN104675802A (en) * | 2015-02-15 | 2015-06-03 | 广东工业大学 | Self-locking friction-free fast-response balancing system |
| CN105065363A (en) * | 2015-08-04 | 2015-11-18 | 山东同力液压装备有限公司 | High-precision lateral-force-resistant self-locking wind power hydraulic cylinder |
| CN105856123A (en) * | 2015-01-21 | 2016-08-17 | 成都飞机工业（集团）有限责任公司 | Follow-up location unit capable of being used for robot shape-adjusting |
| CN108266427A (en) * | 2017-11-23 | 2018-07-10 | 湖北江山专用汽车有限公司 | A kind of machinery total travel self-locking hydraulic cylinder |
| CN109578377A (en) * | 2019-01-30 | 2019-04-05 | 华中科技大学无锡研究院 | The hydraulic cylinder of the two-way dual mechanical locking in any position can be achieved |
| CN110131235A (en) * | 2019-05-27 | 2019-08-16 | 燕山大学 | A kind of novel hydraulic support cylinder structure |
| CN110345130A (en) * | 2019-07-19 | 2019-10-18 | 符鹏 | A kind of self locking hydraulic cylinder |
| CN110500059A (en) * | 2018-05-18 | 2019-11-26 | 中国石油化工股份有限公司 | A kind of amplificate packer packing element of snapback |
-
2012
- 2012-09-14 CN CN201220466945.9U patent/CN202811639U/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362896A (en) * | 2013-07-23 | 2013-10-23 | 云南兴长江实业有限公司 | Safe locking device suitable for hydraulic oil cylinder |
| CN103362896B (en) * | 2013-07-23 | 2016-08-24 | 云南兴长江实业有限公司 | A kind of safe locking device being suitable for hydraulic jack |
| CN103775430A (en) * | 2013-11-15 | 2014-05-07 | 杜雨轩 | Spiral self-locking hydraulic cylinder |
| CN104100594A (en) * | 2014-07-06 | 2014-10-15 | 上海宏信设备工程有限公司 | Composite oblique cone self-locking hydraulic oil cylinder |
| CN105856123A (en) * | 2015-01-21 | 2016-08-17 | 成都飞机工业（集团）有限责任公司 | Follow-up location unit capable of being used for robot shape-adjusting |
| CN104675802A (en) * | 2015-02-15 | 2015-06-03 | 广东工业大学 | Self-locking friction-free fast-response balancing system |
| CN105065363A (en) * | 2015-08-04 | 2015-11-18 | 山东同力液压装备有限公司 | High-precision lateral-force-resistant self-locking wind power hydraulic cylinder |
| CN105065363B (en) * | 2015-08-04 | 2017-05-24 | 山东同力液压装备有限公司 | High-precision lateral-force-resistant self-locking wind power hydraulic cylinder |
| CN108266427A (en) * | 2017-11-23 | 2018-07-10 | 湖北江山专用汽车有限公司 | A kind of machinery total travel self-locking hydraulic cylinder |
| CN108266427B (en) * | 2017-11-23 | 2023-09-08 | 湖北江山专用汽车有限公司 | Mechanical full-stroke self-locking hydraulic cylinder |
| CN110500059A (en) * | 2018-05-18 | 2019-11-26 | 中国石油化工股份有限公司 | A kind of amplificate packer packing element of snapback |
| CN110500059B (en) * | 2018-05-18 | 2021-06-08 | 中国石油化工股份有限公司 | Expansion packer rubber barrel capable of retracting rapidly |
| CN109578377A (en) * | 2019-01-30 | 2019-04-05 | 华中科技大学无锡研究院 | The hydraulic cylinder of the two-way dual mechanical locking in any position can be achieved |
| CN110131235A (en) * | 2019-05-27 | 2019-08-16 | 燕山大学 | A kind of novel hydraulic support cylinder structure |
| CN110131235B (en) * | 2019-05-27 | 2020-04-07 | 燕山大学 | Hydraulic supporting cylinder structure |
| CN110345130A (en) * | 2019-07-19 | 2019-10-18 | 符鹏 | A kind of self locking hydraulic cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |
|
| CX01 | Expiry of patent term |