CN107035741A - Hydraulic cylinder with locking device - Google Patents
Hydraulic cylinder with locking device Download PDFInfo
- Publication number
- CN107035741A CN107035741A CN201611110707.3A CN201611110707A CN107035741A CN 107035741 A CN107035741 A CN 107035741A CN 201611110707 A CN201611110707 A CN 201611110707A CN 107035741 A CN107035741 A CN 107035741A
- Authority
- CN
- China
- Prior art keywords
- cam
- locking device
- hole
- cylinder body
- supporting plate
- 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.)
- Granted
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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention discloses the hydraulic cylinder with locking device, including cylinder body and locking device, the locking device includes supporting 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 supporting plate, and cam is fixed in connecting shaft, and connecting shaft can be rotated around the axis of oneself, and the axis and the diameter parallel of through hole of connecting shaft.The mating holes coordinates with piston rod for gap.Locking device it is simple in construction, it is easy to processing and manufacturing and assemble, and there is locking effect to piston rod.
Description
Technical field
The present invention relates to a kind of mechanical device, and in particular to the hydraulic cylinder with 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 construction, reliable operation.Realized with it during reciprocating motion, deceleration device can be removed from, and without 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 is constituted.Hydraulic cylinder is a kind of executive component for driving and bearing big load, usually requires that its energy when moving stopping
Outer load is born long-term and stably and without any displacement, that is, is needed with locking positioning function, 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
Outer load and without any displacement, can latching ram bar extension.Purpose is to provide the hydraulic cylinder with locking device, solved
Hydraulic cylinder is born outer load long-term and stably when moving and stopping and without any displacement, can latching ram bar it is overhanging
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 is fixedly installed 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 supporting plate and setting on the supporting plate, and the supporting 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
Put including cam and connecting shaft, one end of the connecting shaft is connected through cam and with supporting plate, and cam is fixed in connecting shaft,
Connecting shaft can be rotated around the axis of oneself, and the axis and the diameter parallel of through hole of connecting shaft；The most short radius of cam is less than
The pivot of cam is to the most short distance of through-hole inner surface, and the maximum radius of cam is more than the pivot of cam to through hole
The most short distance of inner surface.The through hole is made up of the positioning hole and mating holes being sequentially communicated, the size of the positioning hole with
The size of the end face of cylinder body matches, and is easy to supporting plate being fixed on the end of cylinder body；The mating holes
Coordinate with piston rod for gap.
Further, it is provided with rubber layer on side vertical with the diameter of connecting shaft on cam.The setting of rubber layer
Cam is set to be contacted with the contact point of piston rod to be soft, it is to avoid piston rod produces the defects such as indenture because pressure is excessive, to piston rod
Side wall plays a protective role.
Further, in addition to handle, the other end of the connecting shaft is vertical with handle to be connected.The setting of handle is used
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.
The present invention compared with prior art, has the following advantages and advantages：
1st, the present invention have locking device hydraulic cylinder, locking device it is simple in construction, 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
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes one of the application
Point, do not constitute 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 left view of the invention；
Fig. 3 is structural representation when locking device works；
Fig. 4 is the semi-cutaway of supporting plate；
Fig. 5 is the structural representation of locking device and cylinder body；
Fig. 6 is the structural representation of embodiment two；
Fig. 7 is the structural representation of embodiment three.
Mark and corresponding parts title in accompanying drawing：
1- supporting plates, 2- cams, 3- connecting shafts, 4- through holes, 5- handles, 6- cylinder bodies, 7- piston rods, 8- positioning
Hole, 9- mating holes, 10- driving hydraulic tubes, 11- magnetic 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 accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment and its explanation of the invention is only used for explaining the present invention, does 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 fixedly installed on the end face of cylinder body 6, and the end face is
The end face of the retractable of piston rod 7；The locking device includes supporting plate 1 and the cam gear being arranged in supporting plate 1, institute
State supporting plate 1 to be fixed on the end face of cylinder body 6, and be provided with supporting plate 1 through hole 4, 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 supporting 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 and through hole 4 diameter parallel；The most short radius of cam 2 is less than the pivot of cam 2 to the most short of the inner surface of through hole 4
Distance, the maximum radius of cam 2 is more than the pivot of cam 2 to the most short distance of the inner surface of through hole 4.The through hole 4
It is made up of the positioning hole 8 and mating holes 9 that are sequentially communicated, the size of the positioning hole 8 and the size phase of the end face of cylinder body 6
Matching, is easy to supporting plate 1 being fixed on the end of cylinder body 6；The mating holes 9 coordinates with piston rod 7 for gap.
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 cam 2 be contacted with the contact point of piston rod 7 to be soft, it is to avoid piston rod 7 produces the defects such as indenture because pressure is excessive, to piston
The side wall of bar 7 plays a protective role.
Further, in addition to handle 5, the other end of the connecting shaft 3 is vertical with handle 5 to be connected.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, to illustrate 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
Plus the coupling mechanism force of piston rod 7.
Embodiment three
This implementation is on the basis of embodiment one, to add drive device, and the structure of embodiment three is as shown in Figure 7.
Drive device includes driving hydraulic tube 10, magnetic valve 11, hydraulic pump 12 and the fuel tank 13 being sequentially connected, the driving
That one end away from magnetic valve 11 is arranged on handle 5 on hydraulic tube 10.
When needing rotation 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, and handle 5 is done work, handle 5 is rotated, 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, magnetic 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 supporting plate 1 is fixed on to the end of cylinder body 6
Illustrate.
First the end face of the size of positioning hole 8 and cylinder body 6 is coordinated, then using bolt, by bolt successively from branch
The outer surface of fagging 1 penetrates positioning hole 8, then penetrates the casing wall of cylinder body 6, so that supporting plate 1 is fixed on into hydraulic cylinder sheet
The end of body 6.The axis of the bolt is vertical with the axis of positioning hole 8, i.e. supporting plate 1 is fixed on into hydraulic cylinder by bolt
The end face of body 6.
Above-described embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that the embodiment that the foregoing is only 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 and improvements done etc. all should be included
Within protection scope of the present invention.
Claims (5)
1. the hydraulic cylinder with locking device, including cylinder body (6), the cylinder body (6) include piston rod (7),
It is characterized in that：Also include locking device, the locking device is fixedly installed on the end face of cylinder body (6), the end
Face is the end face of piston rod (7) retractable；The locking device includes supporting plate (1) and is arranged on convex in supporting plate (1)
Wheel apparatus, the supporting plate (1) is fixed on the end face of cylinder body (6), and is provided with supporting plate (1) through hole (4),
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 supporting plate (1), and cam (2) is fixed in connecting shaft (3), connection
Axle (3) can be rotated around the axis of oneself, and the diameter parallel of the axis and through hole (4) of connecting shaft (3)；Cam (2) it is most short
Radius is less than the pivot of cam (2) to the most short 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 most short distance of through hole (4) inner surface.
2. the hydraulic cylinder according to claim 1 with locking device, it is characterised in that：The through hole (4) by connecting successively
Logical positioning hole (8) and mating holes (9) composition, the size and the size phase of the end face of cylinder body (6) of the positioning hole (8)
Matching, is easy to supporting plate (1) being fixed on the end of cylinder body (6)；Between the mating holes (9) and piston rod (7) are
Gap coordinates.
3. the hydraulic cylinder according to claim 1 with locking device, it is characterised in that：On cam (2) and connecting shaft
(3) diameter is provided with rubber layer on vertical side.
4. the hydraulic cylinder according to claim 1 with locking device, it is characterised in that：Also include handle (5), the company
The other end of spindle (3) is vertical with handle (5) to be connected.
5. the hydraulic cylinder according to claim 1 with locking device, it is characterised in that：The cam gear has some
It is individual.
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 true CN107035741A (en) | 2017-08-11 |
| CN107035741B 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 |
|---|---|
| CN107035741B (en) | 2018-04-24 |
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