CN206503801U - Pressure compensated hydraulic cylinder is realized using spring - Google Patents
Pressure compensated hydraulic cylinder is realized using spring Download PDFInfo
- Publication number
- CN206503801U CN206503801U CN201621342058.5U CN201621342058U CN206503801U CN 206503801 U CN206503801 U CN 206503801U CN 201621342058 U CN201621342058 U CN 201621342058U CN 206503801 U CN206503801 U CN 206503801U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- spring
- eccentric wheel
- tight plate
- pressing tight
- 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.)
- Expired - Fee Related
Links
Landscapes
- Transmission Devices (AREA)
Abstract
The utility model discloses realize pressure compensated hydraulic cylinder using spring, including cylinder body and locking device, piston rod is provided with the cylinder body, the locking device includes posting, eccentric wheel, drive device and the pressing tight plate being sequentially connected, spring and guide rod, and the posting is arranged on the end face of cylinder body；The piston rod activity runs through posting, and pressing tight plate, spring and guide rod are respectively positioned in posting, and that one end away from spring is contacted with eccentric wheel on guide rod, and with the rotation of eccentric wheel, pressing tight plate can hold out against piston rod；The drive device driving eccentric wheel is rotated.When the center of eccentric wheel is farthest to the axial line distance of piston rod, pressing tight plate is away from piston rod；When the center of eccentric wheel is tapered into the axis of piston rod, pressing tight plate gradually holds out against piston rod in the presence of spring and guide rod, so that by piston rod locking at the desired position.
Description
Technical field
The utility model is related to a kind of mechanical device, and in particular to realize pressure compensated hydraulic cylinder using spring.
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.
Utility model content
Technical problem to be solved in the utility model be how to enable hydraulic cylinder move stop when long-term and stably
Bear outer load and without any displacement, can latching ram bar extension.Therefore the utility model purpose is that offer utilizes bullet
Spring realizes pressure compensated hydraulic cylinder, solution how to enable hydraulic cylinder bear outer load long-term and stably when moving and stopping and
Without any displacement, can latching ram bar extension the problem of.
The utility model is achieved through the following technical solutions：
Pressure compensated hydraulic cylinder, including cylinder body and the lock for being arranged on cylinder body end face are realized using spring
Be provided with piston rod in tight device, the cylinder body, the locking device include posting, eccentric wheel, drive device, with
And pressing tight plate, spring and the guide rod being sequentially connected, the posting is arranged on the end face of cylinder body, and the end face is
The end face that piston rod can freely stretch；The piston rod activity runs through posting, and pressing tight plate, spring and guide rod are respectively positioned on fixed
In the frame of position, and that one end away from spring is contacted with eccentric wheel on guide rod, and with the rotation of eccentric wheel, pressing tight plate can hold out against work
Stopper rod；The drive device driving eccentric wheel is rotated.Eccentric wheel is one kind of cam, and eccentric wheel refers to that the center of this wheel does not exist
On the point of rotation, what eccentric wheel was generally referred to is exactly circular wheel, when circle is not around the central rotation of oneself, just into bias
Wheel.When the center of eccentric wheel is farthest to the axial line distance of piston rod, pressing tight plate is away from piston rod；When eccentric wheel center to live
When the axis of stopper rod is tapered into, pressing tight plate gradually holds out against piston rod in the presence of spring and guide rod, so that by piston rod
Locking is at the desired position.Spring is in compressive state simultaneously, therefore spring is in order to resile, and can produce axial thrust,
The pressure of piston rod is withstood so as to increase pressing tight plate, and then plays the compensation of the stretch pressure of the locking device of cylinder body.
Further, the drive device is mainly made up of connecting shaft, turbine and worm screw, one end of the connecting shaft with partially
Heart wheel is connected, and the other end of connecting shaft be connected with turbine, and connecting shaft is parallel to the shaft axis of turbine, and the axis of connecting shaft and inclined
The rotation axis coincident of heart wheel, worm screw is driven by motor, and impart power to be engaged with give turbine.Worm and gear machine
Structure is commonly used to transmit the motion between two alternating axis and power.Plane is interior equivalent to gear and tooth therebetween with worm screw for worm gear
Bar, worm screw is again similar to screw configuration.Worm-and-wheel gear stable drive, noise are small, and with auto-lock function：When leading for worm screw
When journey angle is less than the equivalent friction angle of engagement wheel between cog, the mechanism has self-locking performance, and reverse self-locking can be achieved, i.e., can only be by worm screw
Worm gear wheel is driven, and by worm gear worm screw can not be driven to rotate.Using the auto-lock function of worm-and-wheel gear, in latching ram bar
When, the inadequate situation of coupling mechanism force can be avoided to occur, and from improving the stability of locking device.
Further, guide cylinder is provided with posting, one end of the guide cylinder and the inwall of posting are connected, led
It is located to bar in guide cylinder, and guide cylinder and guide rod coaxial line.Connecting rod is provided between pressing tight plate and spring, spring leads to
Cross connecting rod drive the setting of pressing tight plate mobile guide cylinder improve spring and guide rod moving direction stability.
Further, the plane on the pressing tight plate with plunger rod contacts concaves, and forms the lateral diameters with piston rod
The curved surface that size matches.So it is easy to pressing tight plate to hold the contact surface of the side of piston rod, increase pressing tight plate and piston rod tightly, makes
Locking is more stable.
Further, with being provided with one layer of elastic rubber layer on the curved surface of plunger rod contacts on pressing tight plate.Rubber layer
Setting makes pressing tight plate 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 work
The side wall of stopper rod plays a protective role.
The utility model compared with prior art, has the following advantages and advantages：
1st, the utility model realizes pressure compensated hydraulic cylinder using spring, when eccentric wheel center to piston rod axis
Apart from it is farthest when, pressing tight plate is away from piston rod；When the center of eccentric wheel is tapered into the axis of piston rod, pressing tight plate is in bullet
In the presence of spring and guide rod, piston rod is gradually held out against, so that by piston rod locking at the desired position；
2nd, the utility model realizes pressure compensated hydraulic cylinder using spring, using the auto-lock function of worm-and-wheel gear,
When latching ram bar, the inadequate situation of coupling mechanism force can be avoided to occur, and from improving the stability of locking device；
3rd, the utility model realizes pressure compensated hydraulic cylinder using spring, and connection is provided between pressing tight plate and spring
Bar, spring driven by connecting rod the setting of pressing tight plate mobile guide cylinder improve spring and guide rod moving direction it is steady
It is qualitative；
4th, the utility model realizes pressure compensated hydraulic cylinder using spring, and the setting of rubber layer makes pressing tight plate and piston rod
Contact point be soft contact, it is to avoid piston rod produces the defect such as indenture because pressure is excessive, and protection work is played to the side wall of piston rod
With.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the utility model embodiment, constitutes the one of the application
Part, does not constitute the restriction to the utility model embodiment.In the accompanying drawings：
Fig. 1 is the utility model structural representation；
Fig. 2 is position view of the pressing tight plate away from piston rod；
Fig. 3 is the position view that pressing tight plate holds out against piston rod.
Mark and corresponding parts title in accompanying drawing：
1- cylinder bodies, 2- pistons, 3- postings, 4- pressing tight plates, 5- springs, 6- guide rods, 7- eccentric wheels, 8- connections
Axle, 9- turbines, 10- worm screws, 11- guide cylinders, 12- connecting rods, 13- rubber layers.
Embodiment
For the purpose of this utility model, technical scheme and advantage is more clearly understood, with reference to embodiment and accompanying drawing,
The utility model is described in further detail, and exemplary embodiment of the present utility model and its explanation are only used for explaining this
Utility model, is not intended as limiting of the present utility model.
Embodiment one
As shown in Figure 1-Figure 3, the utility model realizes pressure compensated hydraulic cylinder, including cylinder body 1 using spring
With the locking device for being arranged on the end face of cylinder body 1, piston rod 2, the locking device are provided with the cylinder body 1
Including posting 3, eccentric wheel 7, drive device and the pressing tight plate 4 being sequentially connected, spring 5 and guide rod 6, the posting 3
On the end face of cylinder body 1, and the end face is the end face that piston rod 2 can freely stretch；The activity of piston rod 2
Through posting 3, pressing tight plate 4, spring 5 and guide rod 6 are respectively positioned in posting 3, and on guide rod 6 away from spring 5 that
End is contacted with eccentric wheel 7, and with the rotation of eccentric wheel 7, pressing tight plate 4 can hold out against piston rod 2；The drive device drives eccentric wheel
7 rotate.Eccentric wheel 7 is one kind of cam, and eccentric wheel 7 refers to the center of this wheel not on the point of rotation, and eccentric wheel 7 is generally referred to
Be exactly circular wheel, when circle not around the central rotation of oneself when, just into eccentric wheel.When eccentric wheel 7 center to live
When the axial line distance of stopper rod 2 is farthest, pressing tight plate 4 is away from piston rod 2；When the center of eccentric wheel 7 gradually becomes to the axis of piston rod 2
Hour, pressing tight plate 4 gradually holds out against piston rod 2 in the presence of spring 5 and guide rod 6, so that piston rod 2 is locked at into needs
Position.
Further, the drive device is mainly made up of connecting shaft 8, turbine 9 and worm screw 10, and the one of the connecting shaft 8
End be connected with eccentric wheel 7, the other end of connecting shaft 8 is connected with turbine 9, connecting shaft 8 parallel to turbine 9 shaft axis, and connect
The axis of axle 8 and the rotation axis coincident of eccentric wheel 7, worm screw 10 is driven by motor, and imparts power to what is be engaged with
To turbine 9.Worm-and-wheel gear is commonly used to transmit the motion between two alternating axis and power.Worm gear and worm screw plane therebetween
It is interior equivalent to wheel and rack, worm screw is again similar to screw configuration.Worm-and-wheel gear stable drive, noise are small, and with certainly
Lock function：When the lead angle of worm screw 10 is less than the equivalent friction angle of engagement wheel between cog, the mechanism has self-locking performance, can be achieved anti-
To self-locking, i.e., by worm screw 10 worm gear 9 can only be driven to rotate, and by worm gear 9 worm screw 10 can not be driven to rotate.Utilize worm and gear machine
The auto-lock function of structure, when latching ram bar 2, can avoid the inadequate situation of coupling mechanism force from occurring, and improve locking device
Stability.
Further, guide cylinder 11, one end of the guide cylinder 11 and the inwall of posting 3 are provided with posting 3
Connection, guide rod 6 is located in guide cylinder 11, and guide cylinder 11 and the coaxial line of guide rod 6.Set between pressing tight plate 4 and spring 5
There is connecting rod 12, spring 5 drives the setting of the mobile guide of pressing tight plate 4 cylinder 11 to improve spring 5 and guiding by connecting rod 12
The stability of the moving direction of bar 6.
Further, the plane contacted on the pressing tight plate 4 with piston rod 2 concaves, and formation and the side of piston rod 2 are straight
The curved surface that footpath size matches.So it is easy to pressing tight plate 4 to hold the side of piston rod 2 tightly, increase pressing tight plate 4 connects with piston rod 2
Contacting surface, makes locking more stable.
Further, one layer of elastic rubber layer 13 is provided with the curved surface contacted on pressing tight plate 4 with piston rod 2.Rubber
The setting of layer 13 makes pressing tight plate 4 be contacted with the contact point of piston rod 2 to be soft, it is to avoid piston rod 2 produces indenture etc. because pressure is excessive
Defect, plays a protective role to the side wall of piston rod 2.
Embodiment two
The present embodiment is that, on the basis of embodiment one, that above makes further illustrates.
In the structure of embodiment one, during with the center line of eccentric wheel 7 close to the axis of piston rod 2, weight mainly make use of
Power makes pressing tight plate 4, spring 5 and the guide rod 6 fall.When the axis of guide rod 6 is not located at vertical direction, pressing tight plate 4 from
The speed for opening piston rod 2 is slower, or even can be constantly in the position contacted with piston rod 2, is not easy to freely stretching for piston rod 2
Contracting.
Now, one and the concentric swivelling chute of eccentric wheel 7, the opening of swivelling chute can be set on the side wall of eccentric wheel 7
Size is less than bottom land size, and that one end contacted on guide rod 6 with eccentric wheel 7 sets the cross section chi of one and swivelling chute
The very little sliding block matched, with the rotation of eccentric wheel 7, guide rod 6 can be with moving back and forth.
Embodiment three
The present embodiment is that, on the basis of embodiment one, that above makes further illustrates.
In order to improve locking effect, the inwall relative with guide rod 6 of posting 3 is arranged to what is matched with piston rod 2
Curved surface.When piston rod 2 is locked, its side wall by pressing tight plate 4 while held tightly, and side wall another side is positioned the curved inner wall of frame 3
Hold tightly, as shown in Figure 3.
Above-described embodiment, is entered to the purpose of this utility model, technical scheme and beneficial effect
One step is described in detail, be should be understood that and be the foregoing is only embodiment of the present utility model, is not used to limit
Fixed protection domain of the present utility model, all any modifications within spirit of the present utility model and principle, made, is equally replaced
Change, improve, should be included within protection domain of the present utility model.
Claims (6)
- Set 1. being realized using spring in pressure compensated hydraulic cylinder, including cylinder body (1), the cylinder body (1) There is piston rod (2), it is characterised in that：Also include locking device, the locking device includes posting (3), eccentric wheel (7), driven Dynamic device and pressing tight plate (4), spring (5) and the guide rod (6) being sequentially connected, the posting (3) are arranged on hydraulic cylinder sheet On the end face of body (1), and the end face is the end face that piston rod (2) can freely stretch；Piston rod (2) activity is through positioning Frame (3), pressing tight plate (4), spring (5) and guide rod (6) are respectively positioned in posting (3), and away from spring (5) on guide rod (6) That one end contacted with eccentric wheel (7), with the rotation of eccentric wheel (7), pressing tight plate (4) can hold out against piston rod (2)；The driving Device driving eccentric wheel (7) is rotated.
- 2. utilization spring according to claim 1 realizes pressure compensated hydraulic cylinder, it is characterised in that：The drive device Mainly it is made up of, one end of the connecting shaft (8) is connected with eccentric wheel (7), connects connecting shaft (8), turbine (9) and worm screw (10) The other end of axle (8) is connected with turbine (9), connecting shaft (8) parallel to turbine (9) shaft axis, and the axis of connecting shaft (8) with The rotation axis coincident of eccentric wheel (7), worm screw (10) is driven by motor, and impart power to be engaged with give turbine (9)。
- 3. utilization spring according to claim 1 realizes pressure compensated hydraulic cylinder, it is characterised in that：In posting (3) In be provided with guide cylinder (11), one end of the guide cylinder (11) is connected with the inwall of posting (3), guide rod (6) be located at leads Into cylinder (11), and guide cylinder (11) and guide rod (6) coaxial line.
- 4. utilization spring according to claim 3 realizes pressure compensated hydraulic cylinder, it is characterised in that：In pressing tight plate (4) Connecting rod (12) is provided between spring (5), spring (5) drives pressing tight plate (4) mobile by connecting rod (12).
- 5. the utilization spring according to any one of claim 1-4 realizes pressure compensated hydraulic cylinder, it is characterised in that：Institute State the plane contacted with piston rod (2) on pressing tight plate (4) to concave, the lateral diameters size formed with piston rod (2) matches Curved surface.
- 6. utilization spring according to claim 5 realizes pressure compensated hydraulic cylinder, it is characterised in that：In pressing tight plate (4) One layer of elastic rubber layer (13) is provided with the upper curved surface contacted with piston rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621342058.5U CN206503801U (en) | 2016-12-08 | 2016-12-08 | Pressure compensated hydraulic cylinder is realized using spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621342058.5U CN206503801U (en) | 2016-12-08 | 2016-12-08 | Pressure compensated hydraulic cylinder is realized using spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206503801U true CN206503801U (en) | 2017-09-19 |
Family
ID=59843500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621342058.5U Expired - Fee Related CN206503801U (en) | 2016-12-08 | 2016-12-08 | Pressure compensated hydraulic cylinder is realized using spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206503801U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593998A (en) * | 2016-12-08 | 2017-04-26 | 泸州长江液压密封件有限公司 | Hydraulic cylinder capable of realizing self-locking through elastic part |
| CN113404746A (en) * | 2021-08-19 | 2021-09-17 | 中国电建集团透平科技有限公司 | Axial flow fan blade control system and method |
-
2016
- 2016-12-08 CN CN201621342058.5U patent/CN206503801U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593998A (en) * | 2016-12-08 | 2017-04-26 | 泸州长江液压密封件有限公司 | Hydraulic cylinder capable of realizing self-locking through elastic part |
| CN106593998B (en) * | 2016-12-08 | 2019-01-15 | 泸州长江液压密封件有限公司 | Self-locking hydraulic cylinder is realized by elastic component |
| CN113404746A (en) * | 2021-08-19 | 2021-09-17 | 中国电建集团透平科技有限公司 | Axial flow fan blade control system and method |
| CN113404746B (en) * | 2021-08-19 | 2021-11-09 | 中国电建集团透平科技有限公司 | Axial flow fan blade control system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106593998B (en) | Self-locking hydraulic cylinder is realized by elastic component | |
| WO2017113606A1 (en) | Integrated hydraulic cylinder having telescoping function and swinging function and application thereof | |
| CN206503801U (en) | Pressure compensated hydraulic cylinder is realized using spring | |
| CN210413586U (en) | Clamping and machining device for sheet metal part of air cylinder bracket | |
| CN103307246A (en) | Stroke-adjustable push rod mechanism | |
| CN103909668B (en) | The energy-saving servo hydraulic press of a kind of mechanical type idle stroke and the electronic supercharging of oil-less pump | |
| CN203822985U (en) | Rotation reciprocating conversion mechanism | |
| CN206154247U (en) | Workstation with adjustable can realize straight line and rotary motion's position | |
| CN203749804U (en) | Massaging machine employing traditional Chinese medicine massage manipulations | |
| CN204610423U (en) | A kind of rotary-piston for printing plate cylinder locking | |
| CN204113573U (en) | Reciprocal compressor | |
| CN105108018B (en) | Swinging rolling machine capable of swinging linearly | |
| CN108331894B (en) | Linear motion mechanism with adjustable stroke and slope and control method thereof | |
| CN205578401U (en) | Mechanical compensation type hydraulic oil cylinder | |
| CN204300269U (en) | A kind of one-sided crank block device that rests | |
| CN206409463U (en) | Hydraulic cylinder with the device that keeps steady | |
| CN203585243U (en) | Transmission device | |
| CN107984247A (en) | A kind of cylinder slipway mechanism | |
| CN109184230B (en) | Installation device for glass curtain wall | |
| CN204267628U (en) | A kind of two screw thread half-nut rail telescopic mechanism | |
| CN204725240U (en) | For the hydraulic locking apparatus of lathe C axle calibration | |
| CN206917970U (en) | A kind of piston for hydraulic cylinder bar telescopic adjustment servicing unit | |
| CN203130930U (en) | Harmonic gear transmission device and pneumatic wave generator thereof | |
| RU170964U1 (en) | Hydraulic Press for Torsion Stamping | |
| CN202645972U (en) | Novel transmission mechanism for metering pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170919 Termination date: 20211208 |