CN107035741B - Hydraulic cylinder with locking device - Google Patents
Hydraulic cylinder with locking device Download PDFInfo
- Publication number
- CN107035741B CN107035741B CN201611110707.3A CN201611110707A CN107035741B CN 107035741 B CN107035741 B CN 107035741B CN 201611110707 A CN201611110707 A CN 201611110707A CN 107035741 B CN107035741 B CN 107035741B
- Authority
- CN
- China
- Prior art keywords
- cam
- hole
- locking device
- cylinder body
- piston rod
- 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
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
- F15B15/1414—Characterised by the construction of the motor unit of the straight-cylinder type with non-rotatable piston
-
- 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
-
- 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
- F15B2015/268—Fluid supply for locking or release independent of actuator pressurisation
Abstract
The invention discloses the hydraulic cylinder with locking device, including cylinder body and locking device, the locking device includes support plate and cam gear, the cylinder body includes piston rod, the cam gear includes cam and connecting shaft, through hole is provided with the supporting plate, and the exposed junction of the piston rod of cylinder body passes through through hole；One end of the connecting shaft is connected through cam and with support plate, and cam is fixed in connecting shaft, and connecting shaft can be rotated around the axis of oneself, and the axis of connecting shaft is parallel with the axis of through hole.The matching hole and piston rod are clearance fit.The structure of locking device is simple, easy to manufacture and assembling, and piston rod is acted on locking.
Description
Technical field
The present invention relates to a kind of mechanical device, and in particular to has the hydraulic cylinder of locking device.
Background technology
Hydraulic cylinder be hydraulic energy is changed into mechanical energy, the hydraulic pressure that does straight reciprocating motion (or oscillating motion) performs member
Part.Its simple in structure, reliable operation.During with it to realize reciprocating motion, deceleration device can be removed from, and do not have drive gap,
Stable movement, therefore be used widely in various mechanical hydraulic systems.Hydraulic cylinder power output and piston effective area and
The pressure difference on its both sides is directly proportional；Hydraulic cylinder substantially by cylinder barrel and cylinder cap, piston and piston rod, sealing device, buffer unit with
Exhaust apparatus forms.Hydraulic cylinder is a kind of driving and bears the executive component of big load, usually requires that its energy when moving stopping
Outer load is born long-term and stably without any displacement, that is, needs that there is locking positioning, without " soft leg " phenomenon.
The content of the invention
The technical problems to be solved by the invention are hydraulic cylinder is born long-term and stably when moving and stopping
It is outer load and without any displacement, piston rod extension can be locked.Purpose is to provide the hydraulic cylinder with locking device, solves
Hydraulic cylinder is born outer load long-term and stably when moving and stopping without any displacement, it is overhanging piston rod to be locked
The problem of length.
The present invention is achieved through the following technical solutions：
Hydraulic cylinder with locking device, including cylinder body and locking device, the cylinder body include piston
Bar, the locking device are fixed on the end face of cylinder body, and the end face is the end face of piston rod retractable；
The locking device includes the cam gear of support plate and setting on the supporting plate, and the support plate is fixed on cylinder body
On end face, and through hole is provided with the supporting plate, the exposed junction of the piston rod of cylinder body passes through through hole；The cam dress
To put including cam and connecting shaft, one end of the connecting shaft is connected through cam and with support plate, and cam is fixed in connecting shaft,
Connecting shaft can be rotated around the axis of oneself, and the axis of connecting shaft is parallel with the axis of through hole；The most short radius of cam is less than
For the pivot of cam to the shortest distance of through-hole inner surface, the maximum radius of cam is more than the pivot of cam to through hole
The shortest distance of inner surface.The through hole is made of the location hole and matching hole being sequentially communicated, the size of the location hole with
The size of the end face of cylinder body matches, easy to which support plate to be fixed on to the endface of cylinder body；The matching hole
It is clearance fit with piston rod.
Further, it is provided with rubber layer on side vertical with the diameter of connecting shaft on cam.The setting of rubber layer
The defects of making cam be contacted with the contact point of piston rod to be soft, avoiding piston rod from producing indenture because pressure is excessive, to piston rod
Side wall plays a protective role.
Further, handle, the other end and the handle vertical connection of the connecting shaft are further included.The setting use of handle
Person can more easily, more effortlessly rotate cam.
Further, the cam gear has several.Set multiple cam gears to lock piston rod, can reduce
The coupling mechanism force of single cam gear, and then protect piston rod.
Compared with prior art, the present invention have the following advantages and advantages：
1st, the present invention has the hydraulic cylinder of locking device, and the structure of locking device is simple, and lock can not only be played to piston rod
Tight effect, is also easy to fabricate and assembles；
2nd, the present invention has the hydraulic cylinder of locking device, can realize the locking of piston rod, and can protect piston rod well
Stress surface.
Brief description of the drawings
Attached drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application
Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the left view of the present invention；
Fig. 3 is structure diagram when locking device works；
Fig. 4 is the semi-cutaway of support plate；
Fig. 5 is the structure diagram of locking device and cylinder body；
Fig. 6 is the structure diagram of embodiment two；
Fig. 7 is the structure diagram of embodiment three.
Mark and corresponding parts title in attached drawing：
1- support plates, 2- cams, 3- connecting shafts, 4- through holes, 5- handles, 6- cylinder bodies, 7- piston rods, 8- positioning
Hole, 9- matching holes, 10- driving hydraulic tubes, 11- solenoid valves, 12- hydraulic pumps, 13- fuel tanks.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment one
As Figure 1-Figure 5, the present invention has the hydraulic cylinder of locking device, including cylinder body 6 and locking device, institute
Stating cylinder body 6 includes piston rod 7, and the locking device is fixed on the end face of cylinder body 6, and the end face is
The end face of 7 retractable of piston rod；The locking device includes support plate 1 and the cam gear being arranged in support plate 1, institute
State support plate 1 to be fixed on the end face of cylinder body 6, and through hole 4 is provided with support plate 1, the work of cylinder body
The exposed junction of stopper rod 7 passes through through hole 4；The cam gear includes cam 2 and connecting shaft 3, and one end of the connecting shaft 3 is through convex
Wheel 2 is simultaneously connected with support plate 1, and cam 2 is fixed in connecting shaft 3, and connecting shaft 3 can be rotated around the axis of oneself, and connecting shaft 3
Axis it is parallel with the axis of through hole 4；The most short radius of cam 2 is less than the pivot of cam 2 to the most short of 4 inner surface of through hole
Distance, the maximum radius of cam 2 is more than the pivot of cam 2 to the shortest distance of 4 inner surface of through hole.The through hole 4
It is made of the location hole 8 and matching hole 9 that are sequentially communicated, the size of the location hole 8 and the size phase of the end face of cylinder body 6
Matching, easy to which support plate 1 to be fixed on to the endface of cylinder body 6；The matching hole 9 and piston rod 7 are clearance fit.
Further, it is provided with rubber layer on side vertical with the diameter of connecting shaft 3 on cam 2.Rubber layer is set
Putting makes the contact point of cam 2 and piston rod 7 be contacted to be soft, the defects of avoiding piston rod 7 from producing indenture because pressure is excessive, to piston
The side wall of bar 7 plays a protective role.
Further, handle 5, the other end and 5 vertical connection of handle of the connecting shaft 3 are further included.The setting of handle 5 makes
User can more easily, more effortlessly rotate cam.
Further, the cam gear has several.Set multiple cam gears to lock piston rod, can reduce
The coupling mechanism force of single cam gear, and then protect piston rod 7.
Embodiment two
This implementation is on the basis of embodiment one, is illustrated for the implementation for having four locking devices, the knot of embodiment two
Structure is as shown in Figure 6.
When setting four locking devices, piston rod 7 can be locked from four different directions of piston rod 7, can increased
Add the coupling mechanism force of piston rod 7.
Embodiment three
This implementation is on the basis of embodiment one, adds driving device, and the structure of embodiment three is as shown in Figure 7.
Driving device includes sequentially connected driving hydraulic tube 10, solenoid valve 11, hydraulic pump 12 and fuel tank 13, the driving
That one end away from solenoid valve 11 is arranged on handle 5 on hydraulic tube 10.
When needing rotational handle to make, start hydraulic pump 12, hydraulic pump 12 extracts hydraulic oil out from fuel tank 13, by electromagnetism
Valve 11 and driving hydraulic tube 10 are reached at handle 5, are done work to handle 5, are rotated handle 5, and then are rotated with moving cam 2, so that
Lock the piston rod 7 through through hole 4；
When needing loose unloading locking device, solenoid valve 11 only need to be controlled, driving hydraulic tube 10 is connected with fuel tank 13.
Example IV
This implementation is on the basis of embodiment one, pair with how support plate 1 is fixed on to the endface of cylinder body 6
Illustrate.
First the end face of the size of location hole 8 and cylinder body 6 is coordinated, then using bolt, by bolt successively from branch
The outer surface of fagging 1 penetrates location hole 8, then penetrates the casing wall of cylinder body 6, so that support plate 1 is fixed on hydraulic cylinder sheet
The endface of body 6.The axis of the bolt is vertical with the axis of location hole 8, i.e. support plate 1 is fixed on hydraulic cylinder by bolt
The end face of body 6.
Above-described embodiment, has carried out the purpose of the present invention, technical solution and beneficial effect further
Describe in detail, it should be understood that the foregoing is merely the embodiment of the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution, improvement and etc. done, should all include
Within protection scope of the present invention.
Claims (3)
1. the hydraulic cylinder with locking device, including cylinder body (6), the cylinder body (6) include piston rod (7),
It is characterized in that：Locking device is further included, the locking device is fixed on the end face of cylinder body (6), the end
Face is the end face of piston rod (7) retractable；The locking device includes support plate (1) and is arranged on convex in support plate (1)
Wheel apparatus, the support plate (1) is fixed on the end face of cylinder body (6), and through hole (4) is provided with support plate (1),
The exposed junction of the piston rod (7) of cylinder body passes through through hole (4)；The cam gear includes cam (2) and connecting shaft (3),
One end of the connecting shaft (3) is connected through cam (2) and with support plate (1), and cam (2) is fixed in connecting shaft (3), connection
Axis (3) can be rotated around the axis of oneself, and the axis of connecting shaft (3) is parallel with the axis of through hole (4)；Cam (2) it is most short
Radius is less than the pivot of cam (2) to the shortest distance of through hole (4) inner surface, and the maximum radius of cam (2) is more than convex
The pivot of (2) is taken turns to the shortest distance of through hole (4) inner surface；
The through hole (4) is made of the location hole (8) and matching hole (9) being sequentially communicated, the size and hydraulic pressure of the location hole (8)
The size of the end face of cylinder body (6) matches, easy to which support plate (1) to be fixed on to the endface of cylinder body (6)；It is described to match somebody with somebody
It is clearance fit that hole (9), which are closed, with piston rod (7)；
On cam (2) rubber layer is provided with the side vertical with the diameter of connecting shaft (3).
2. the hydraulic cylinder according to claim 1 with locking device, it is characterised in that：Further include handle (5), the company
The other end of spindle (3) and handle (5) vertical connection.
3. the hydraulic cylinder according to claim 1 with locking device, it is characterised in that：The cam gear has some
It is a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611110707.3A CN107035741B (en) | 2016-12-06 | 2016-12-06 | Hydraulic cylinder with locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611110707.3A CN107035741B (en) | 2016-12-06 | 2016-12-06 | Hydraulic cylinder with locking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107035741A CN107035741A (en) | 2017-08-11 |
| CN107035741B true CN107035741B (en) | 2018-04-24 |
Family
ID=59530725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611110707.3A Active CN107035741B (en) | 2016-12-06 | 2016-12-06 | Hydraulic cylinder with locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107035741B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5868060A (en) * | 1994-01-24 | 1999-02-09 | Speed Shore Corp. | Quick-release cam lock |
| CN2686989Y (en) * | 2004-02-19 | 2005-03-23 | 施彦生 | Locking device for collapsible assembly |
| CN201565864U (en) * | 2009-09-26 | 2010-09-01 | 蒋泽军 | Cam rapid clamping device |
| CN103273448A (en) * | 2013-07-02 | 2013-09-04 | 颜廷财 | Clamp special for drill hole tapping |
| CN103659655A (en) * | 2013-11-26 | 2014-03-26 | 重庆舰帏机械有限公司 | Clamping device with cam |
| CN206409463U (en) * | 2016-12-06 | 2017-08-15 | 泸州长江液压密封件有限公司 | Hydraulic cylinder with the device that keeps steady |
-
2016
- 2016-12-06 CN CN201611110707.3A patent/CN107035741B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5868060A (en) * | 1994-01-24 | 1999-02-09 | Speed Shore Corp. | Quick-release cam lock |
| CN2686989Y (en) * | 2004-02-19 | 2005-03-23 | 施彦生 | Locking device for collapsible assembly |
| CN201565864U (en) * | 2009-09-26 | 2010-09-01 | 蒋泽军 | Cam rapid clamping device |
| CN103273448A (en) * | 2013-07-02 | 2013-09-04 | 颜廷财 | Clamp special for drill hole tapping |
| CN103659655A (en) * | 2013-11-26 | 2014-03-26 | 重庆舰帏机械有限公司 | Clamping device with cam |
| CN206409463U (en) * | 2016-12-06 | 2017-08-15 | 泸州长江液压密封件有限公司 | Hydraulic cylinder with the device that keeps steady |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107035741A (en) | 2017-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104358744B (en) | A kind of auto lock oil cylinder | |
| CN107035741B (en) | Hydraulic cylinder with locking device | |
| CN206409463U (en) | Hydraulic cylinder with the device that keeps steady | |
| CN104358743B (en) | A kind of tight hydraulic jack of rotary self-locking | |
| CN102887432A (en) | Electro-hydraulic integrated driver for rotary pin of container hanging tool | |
| CN206503801U (en) | Pressure compensated hydraulic cylinder is realized using spring | |
| CN206290519U (en) | Retractable actuating cylinder hydraulic circuit components | |
| CN206617387U (en) | A kind of double acting telescopic oil cylinder | |
| CN202429901U (en) | Electro-liquid integrated driver for rotary pins of container spreader | |
| CN104787470A (en) | Telescopic inner support device | |
| CN203558778U (en) | Dual-engagement interlocked single cylinder pin plugging/unplugging mechanism for crane | |
| CN207093498U (en) | A kind of hydraulic locking cylinder mechanism | |
| CN206409457U (en) | With flow etc. point function hydraulic cylinder | |
| CN203793650U (en) | Hydraulic system for aircraft radome opening device | |
| CN205533523U (en) | Two effect pneumatic cylinders of single pole | |
| CN207155683U (en) | A kind of double cylinder double acting membrane pump top cover provision for disengagement | |
| CN203756631U (en) | Hydraulic cylinder capable of reducing liquid compression influences | |
| CN106523470A (en) | Locking device suitable for piston rod | |
| CN110294101A (en) | A kind of auxiliary drive mechanism and its application method for folded wing | |
| CN106143600A (en) | Beam car hydraulic steering system and beam car | |
| CN207682878U (en) | A kind of heat resistant type conversion oil cylinder | |
| CN204476915U (en) | A kind of half-separation type swing cylinder | |
| CN214998583U (en) | Two-way heavy hydraulic cylinder | |
| US20190085869A1 (en) | Hydraulic working occupation device | |
| CN214659998U (en) | Prevent turning round and cup joint sucker rod |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |