CN108361240A - A kind of hydraulic cylinder with locking device - Google Patents
A kind of hydraulic cylinder with locking device Download PDFInfo
- Publication number
- CN108361240A CN108361240A CN201810437306.1A CN201810437306A CN108361240A CN 108361240 A CN108361240 A CN 108361240A CN 201810437306 A CN201810437306 A CN 201810437306A CN 108361240 A CN108361240 A CN 108361240A
- Authority
- CN
- China
- Prior art keywords
- locking
- hydraulic cylinder
- piston rod
- cylinder
- radial
- 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- Withdrawn
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1428—Cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1457—Piston rods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
Hydraulic cylinder with locking device, the cylinder body of piston rod external part is connected with locking seat, there is locking set even on the piston rod in locking seat, locking is cased with circumferentially groove, locking set groove in locking seat has axis pin, a pair of of semi-circular shape locking ring is hinged on axis pin, the other end of locking ring has been respectively articulated with pull rod, the other end of pull rod is hinged with the interior radial bars in the lateral frame of locking seat, the other end of radial bars is connected with radial alignment driving device, there is forward and backward position switch in lateral frame, there is the switch contact of forward and backward position switch in radial bars.When movement forward and backward with radial alignment driving device driving radial bars, it drives a pair of locking ring simultaneously by pull rod and separates, when merging, there need not be larger driving force, a pair of locking can be allowed to encircle in the groove for holding locking set, reliably ensure that piston rod cannot be axially moved, there is forward and backward position switch in lateral frame, there is switch contact in radial bars, signal whether hydraulic cylinder locking can be sent out, cost is not high.
Description
Technical field
The present invention relates to a kind of hydraulic cylinder with locking device, especially a kind of hydraulic cylinder locking with locking device
Device.
Background technology
Hydraulic cylinder has a circle tube cylinder, and there is a cylinder cap at the both ends of cylinder body respectively, the both sides of cylinder body have respectively hydraulic medium into and out of
Mouthful, there are piston, piston to be connected with piston rod in cylinder body, piston rod is stretched out from the cylinder cap of one end.In use, allowing the hydraulic pressure of cylinder barrel both sides
Medium import and export is connected with hydraulic station respectively, with hydraulic drive piston motion, piston rod is made to make from extended or retracted past of cylinder cap
Multiple movement drives driven-mechanism action.
Driven mechanism keeps piston rod in the state of retracted position sometimes for after piston rod is retracted cylinder body.For
It allows the state that hydraulic cylinder can keep piston rod to rest on retracted position, hydraulic cylinder to need locking device, is retracted in piston rod
After cylinder body, with locking device lock piston bar, prevent piston rod from stretching out activity.
In the prior art, a kind of hydraulic cylinder locking device, the liquid are disclosed in Chinese patent ZL 2,012 1 0348148.5
The locking device of cylinder pressure has the cylindrical lock reservation for the piston rod external part for being connected in cylinder body, and piston rod one end is connected in locking seat
Locking column, there is left and right two axis pin parallel with the axial direction of hydraulic cylinder, left and right two axis pins to be hinged with a pair in locking seat
One end of semi-circular shape brake block, brake block is connected with radial bars, and radial bars are connected with radial alignment driving device.Linear drives
Device can be bolt and nut driving device, fluid pressure drive device or electromagnetic actuator device.
A pair of of brake block in above-mentioned locking device is band-type brake structure, and a pair of of brake block is trapped among locking column both sides, is used
Radial alignment driving device can drive a pair of of brake block to separate and merge.When a pair of of brake block separates, do not have to locking column
Constrained does not influence the stretching activity of piston rod, and when a pair of of brake block merges, a pair of of brake block holds locking column tightly and generates lock
The frictional force for watt acting on locking column prevents the stretching activity of locking column, realizes the locking that cylinder hydraulic cylinder is retracted to piston rod.
This hydraulic cylinder locking device has following deficiency：
1. hydraulic cylinder locking device is combined by brake shoe with the locking column matching for being connected in piston rod, lock is needed to the locking of piston rod
Watt there is larger frictional force to locking column, this requires the linear drive apparatus of larger driving force, and hydraulic cylinder is caused to lock
Apparatus cost is higher；
2. the sliding of locking column can also occur with friction force locking, the locking of piston rod is not very reliable；
3. hydraulic cylinder locking device does not have state remote transmission device, state that can only be whether on-site-inspection locks cannot be separate
The place at scene understands state whether hydraulic cylinder locking.
Invention content
The purpose of the invention is to overcome above-mentioned deficiency, propose that a kind of cost is not high, locking is reliable, can be lock-out state
The hydraulic cylinder with locking device of teletransmission.
The present invention is achieved using the following method.
Hydraulic cylinder with locking device has circle tube cylinder, the both ends of cylinder body to have cylinder cap, the both sides difference of cylinder body respectively
There is hydraulic medium import and export, there is piston, piston to be connected with piston rod in cylinder body, piston rod is stretched out from the cylinder cap of one end, and piston rod is stretched
The cylinder body of outlet is connected with cylindrical lock reservation,
There are cylindrical shape locking set even on the piston rod, the excircle for locking set to have groove circumferentially, locking seat in locking seat
Interior locking set groove has the axis pin parallel with the axial direction of hydraulic cylinder, and a pair of of semi-circular shape locking ring, lock are hinged on axis pin
The other end for determining ring has been respectively articulated with pull rod, and the other end of pull rod is hinged with radial bars, and radial bars are the lateral frames in locking seat
In frame, the other end of radial bars is connected with radial alignment driving device, has forward and backward position switch in lateral frame, has in radial bars
The switch contact of forward and backward position switch.
In use, can drive the forward and backward movement of radial bars of the present invention with radial alignment driving device, radial bars are forward and backward
Movement by pull rod can drive a pair of locking cyclization and and separate, when merging, need not there is larger driving force, can allow one
To the groove of brake shoe clasping locking set, reliably ensures that piston rod cannot be axially moved, and realize the locking to hydraulic cylinder, separate
When, a pair of locking ring is deviate from the groove of locking set, and piston rod can be axially moved, and realizes the unlock to hydraulic cylinder, production
The cost of product is not high, and when the forward and backward movement of radial bars, switch contact can trigger forward and backward position switch respectively, send out hydraulic cylinder lock
Signal whether determining can understand state whether hydraulic cylinder locks in the place far from scene.
Below in conjunction with the accompanying drawings, the present invention is further described.
Description of the drawings
Fig. 1 is that signal is cutd open by a kind of main view office for hydraulic cylinder with locking device that scheme of the invention according to the present invention proposes
Figure；
Fig. 2 is enlarged section schematic diagram at the I of Fig. 1；
Fig. 3 is the A-A diagrammatic cross-sections of present invention Fig. 1 in unlock；
Fig. 4 is the A-A diagrammatic cross-sections of present invention Fig. 1 in locking；
Fig. 5 be radial alignment driving device be bolt and nut driving device Fig. 1 A-A diagrammatic cross-sections.
Specific implementation mode
In Fig. 1 ~ Fig. 4, the hydraulic cylinder with locking device has circle tube cylinder 1, the both ends of cylinder body to have cylinder cap 3,4 respectively,
There are hydraulic medium import and export 5,6 in the both sides of cylinder body respectively, there is piston 2 in cylinder body, and piston is connected with piston rod 7, and piston rod is from cylinder cap
4 stretch out, and the cylinder body of piston rod external part is connected with cylindrical lock reservation 8, there is cylindrical shape locking even on the piston rod in locking seat
Set 9, the excircle for locking set have groove 10 circumferentially, the locking in locking seat cover groove have it is parallel with the axial direction of hydraulic cylinder
Axis pin 11, a pair of semicircle locking ring 12,13 is hinged on axis pin, the other end of locking ring has been respectively articulated with pull rod 14,15,
The other end of pull rod is hinged with radial bars 16, and radial bars are in the lateral frame 17 of locking seat, and the other end of radial bars is connected with
Hydraulic cylinder 18 has forward and backward position switch 19,20 in lateral frame, there is the switch contact 21 of forward and backward position switch in radial bars.
The above-mentioned radial alignment driving device being connected with the radial bars other end is hydraulic cylinder.It is connected with the radial bars other end
Radial alignment driving device can also be bolt and nut driving device.
In Fig. 5, in the hydraulic cylinder with locking device, the radial alignment driving device being connected with the radial bars other end is spiral shell
Stem nut driving device 22.
Claims (3)
1. a kind of hydraulic cylinder with locking device has circle tube cylinder, the both ends of cylinder body to have cylinder cap, the both sides point of cylinder body respectively
There is not hydraulic medium import and export, there is piston, piston to be connected with piston rod in cylinder body, piston rod is stretched out from the cylinder cap of one end, piston rod
The cylinder body of external part is connected with cylindrical lock reservation, it is characterised in that：
There are cylindrical shape locking set even on the piston rod, the excircle for locking set to have groove circumferentially, locking seat in locking seat
Interior locking set groove has the axis pin parallel with the axial direction of hydraulic cylinder, and a pair of of semi-circular shape locking ring, lock are hinged on axis pin
The other end for determining ring has been respectively articulated with pull rod, and the other end of pull rod is hinged with radial bars, and radial bars are the lateral frames in locking seat
In frame, the other end of radial bars is connected with radial alignment driving device, has forward and backward position switch in lateral frame, has in radial bars
The switch contact of forward and backward position switch.
2. the hydraulic cylinder as described in claim 1 with locking device, characterized in that the radial alignment driving device is
Bolt and nut driving device.
3. the hydraulic cylinder as described in claim 1 with locking device, characterized in that the radial alignment driving device is
Hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810437306.1A CN108361240A (en) | 2018-05-09 | 2018-05-09 | A kind of hydraulic cylinder with locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810437306.1A CN108361240A (en) | 2018-05-09 | 2018-05-09 | A kind of hydraulic cylinder with locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108361240A true CN108361240A (en) | 2018-08-03 |
Family
ID=63011979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810437306.1A Withdrawn CN108361240A (en) | 2018-05-09 | 2018-05-09 | A kind of hydraulic cylinder with locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108361240A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356909A (en) * | 2018-12-01 | 2019-02-19 | 江苏汉东机械有限公司 | A kind of hydraulic cylinder mechanical locking |
| CN112211867A (en) * | 2020-10-26 | 2021-01-12 | 刘舜 | Three-position four-way pneumatic reversing hydraulic valve |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4791855A (en) * | 1985-03-11 | 1988-12-20 | Pubot Giken Co., Ltd. | Cylinder locking device |
| CN201916574U (en) * | 2010-12-15 | 2011-08-03 | 邵阳维克液压股份有限公司 | Hydraulic device for controlling valve |
| CN102213251A (en) * | 2011-06-28 | 2011-10-12 | 扬州斯普森机械制造有限公司 | Hydraulic cylinder with locking mechanism |
| CN102748525A (en) * | 2012-07-13 | 2012-10-24 | 常州液压成套设备厂有限公司 | Ball valve servomotor with hydraulic locking device |
| CN102840191A (en) * | 2012-09-19 | 2012-12-26 | 中国水电顾问集团中南勘测设计研究院 | Oil cylinder locking device |
| CN203335530U (en) * | 2013-06-03 | 2013-12-11 | 天津优瑞纳斯液压机械有限公司 | Mechanical locking device for hydraulic cylinder |
| CN104314920A (en) * | 2014-08-28 | 2015-01-28 | 能发伟业铁岭阀门股份有限公司 | Hydraulic cylinder locking device |
| CN204186676U (en) * | 2014-09-28 | 2015-03-04 | 常州液压成套设备厂有限公司 | Oil cylinder of hydraulic headstock gear locking device |
| CN105114396A (en) * | 2015-09-18 | 2015-12-02 | 常州液压成套设备厂有限公司 | Locking device of hydraulic oil cylinder of hydraulic hoist |
| CN106050793A (en) * | 2016-07-29 | 2016-10-26 | 泸州合成液压件有限公司 | External locking oil cylinder |
| CN106979189A (en) * | 2017-05-22 | 2017-07-25 | 泸州长江油缸制造有限公司 | Operating cylinder linkage position-limit mechanism |
| CN206943128U (en) * | 2017-05-22 | 2018-01-30 | 泸州长江油缸制造有限公司 | A kind of synchronous locking device applied to hydraulic jack |
| CN108006011A (en) * | 2017-11-30 | 2018-05-08 | 徐州徐工液压件有限公司 | Double outlet-rod hydraulic cylinders with locking positioning function |
| CN208138244U (en) * | 2018-05-09 | 2018-11-23 | 铁岭特种阀门股份有限公司 | A kind of hydraulic cylinder with locking device |
-
2018
- 2018-05-09 CN CN201810437306.1A patent/CN108361240A/en not_active Withdrawn
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4791855A (en) * | 1985-03-11 | 1988-12-20 | Pubot Giken Co., Ltd. | Cylinder locking device |
| CN201916574U (en) * | 2010-12-15 | 2011-08-03 | 邵阳维克液压股份有限公司 | Hydraulic device for controlling valve |
| CN102213251A (en) * | 2011-06-28 | 2011-10-12 | 扬州斯普森机械制造有限公司 | Hydraulic cylinder with locking mechanism |
| CN102748525A (en) * | 2012-07-13 | 2012-10-24 | 常州液压成套设备厂有限公司 | Ball valve servomotor with hydraulic locking device |
| CN102840191A (en) * | 2012-09-19 | 2012-12-26 | 中国水电顾问集团中南勘测设计研究院 | Oil cylinder locking device |
| CN203335530U (en) * | 2013-06-03 | 2013-12-11 | 天津优瑞纳斯液压机械有限公司 | Mechanical locking device for hydraulic cylinder |
| CN104314920A (en) * | 2014-08-28 | 2015-01-28 | 能发伟业铁岭阀门股份有限公司 | Hydraulic cylinder locking device |
| CN204186676U (en) * | 2014-09-28 | 2015-03-04 | 常州液压成套设备厂有限公司 | Oil cylinder of hydraulic headstock gear locking device |
| CN105114396A (en) * | 2015-09-18 | 2015-12-02 | 常州液压成套设备厂有限公司 | Locking device of hydraulic oil cylinder of hydraulic hoist |
| CN106050793A (en) * | 2016-07-29 | 2016-10-26 | 泸州合成液压件有限公司 | External locking oil cylinder |
| CN106979189A (en) * | 2017-05-22 | 2017-07-25 | 泸州长江油缸制造有限公司 | Operating cylinder linkage position-limit mechanism |
| CN206943128U (en) * | 2017-05-22 | 2018-01-30 | 泸州长江油缸制造有限公司 | A kind of synchronous locking device applied to hydraulic jack |
| CN108006011A (en) * | 2017-11-30 | 2018-05-08 | 徐州徐工液压件有限公司 | Double outlet-rod hydraulic cylinders with locking positioning function |
| CN208138244U (en) * | 2018-05-09 | 2018-11-23 | 铁岭特种阀门股份有限公司 | A kind of hydraulic cylinder with locking device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356909A (en) * | 2018-12-01 | 2019-02-19 | 江苏汉东机械有限公司 | A kind of hydraulic cylinder mechanical locking |
| CN112211867A (en) * | 2020-10-26 | 2021-01-12 | 刘舜 | Three-position four-way pneumatic reversing hydraulic valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180803 |