CN106286464A - A kind of end mechanical self-locking hydraulic cylinder of band buffering - Google Patents
A kind of end mechanical self-locking hydraulic cylinder of band buffering Download PDFInfo
- Publication number
- CN106286464A CN106286464A CN201610800738.5A CN201610800738A CN106286464A CN 106286464 A CN106286464 A CN 106286464A CN 201610800738 A CN201610800738 A CN 201610800738A CN 106286464 A CN106286464 A CN 106286464A
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- China
- Prior art keywords
- cylinder
- hydraulic cylinder
- piston
- locking
- latch segment
- Prior art date
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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
- F15B15/1447—Pistons; Piston to piston rod assemblies
-
- 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
- F15B15/1461—Piston rod sealings
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- 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
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
-
- 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
Abstract
The present invention provides the end mechanical self-locking hydraulic cylinder that a kind of band buffers, groove is offered on the inwall of cylinder barrel, cylindrical hole is offered on described piston, latch segment is installed in cylindrical hole, latch segment and fit depressions are for realizing self-locking and the unblock of hydraulic cylinder, it is provided with sealing ring between latch segment and cylindrical hole inwall, hydraulic oil channel is had on described piston, hydraulic oil arrives the check valve being arranged in the middle of piston by this passage, cylindrical hole connects with check valve, on described cylinder bottom, one-way throttle valve is installed, when hydraulic cylinder is retracted close to cylinder bottom, realize the pooling feature of hydraulic cylinder, the hydraulic cylinder of the present invention not only can realize the reciprocating motion of Normal hydraulic cylinder, but also retraction end of travel self-locking and the function of retraction end of travel buffering can be realized.
Description
Technical field
The invention belongs to technical field of hydraulic pressure, the end mechanical self-locking hydraulic cylinder buffered more particularly, to a kind of band.
Background technology
The hydraulic pressure that hydraulic energy is changed into mechanical energy by hydraulic cylinder, do straight reciprocating motion (or oscillating motion) performs unit
Part.When realizing moving back and forth with it, can remove deceleration device from, and not have drive gap, stable movement, at various hydraulic pressure systems
System is used widely.
According to job requirement, it is sometimes desirable to workpiece after moving to a certain position or workpiece quit work after in certain time
Holding position is constant, in order to prevent workpiece to be subjected to displacement under other power effects such as external force, gravity, now needs hydraulic cylinder to lock
Tightly.The self-locking of hydraulic cylinder at present relies primarily on the mode of closure pressure oil and realizes, but this locking mode hydraulic oil is easily let out
Dew, can occur " underbalance effect " and " soft leg phenomenon ", although for this phenomenon, done a lot of improvement sides after hydraulic fluid leak
Case, but the most fundamentally solve the problems referred to above.In order to realize the self-locking of hydraulic cylinder, it is also possible to use hydraulic lock, but
There is leakage problem in hydraulic lock in auto-lock process, occurs self-locking precision the highest and workpiece offset phenomena after leakage, and oil is occurring
During the fault of road, precision and reliability the most more cannot ensure, so hydraulic lock can not realize the self-locking of hydraulic cylinder for a long time；And
Hydraulic lock is often required for multiple auxiliary element such as check valve, reversal valve and jointly acts on the self-locking realizing hydraulic cylinder, and this is not only
Making self-locking cost high, also make to realize to occupy during self-locking more space, oil circuit increases simultaneously, and the probability making generation leak increases
Add, keep in repair and use is made troubles.
Summary of the invention
Patent of the present invention provides the end mechanical self-locking hydraulic cylinder of a kind of band buffering, and this hydraulic cylinder not only can realize commonly
The reciprocating motion of hydraulic cylinder, but also retraction end of travel self-locking and the function of retraction end of travel buffering can be realized.
Technical scheme: the end mechanical self-locking hydraulic cylinder of a kind of band buffering, including base, base is provided with
Cylinder barrel, the tail end of cylinder barrel is provided with cylinder bottom, and the front end of cylinder barrel is provided with cylinder head, and base, cylinder bottom, cylinder barrel and cylinder head are assembled into liquid
Cylinder pressure cylinder body, is provided with piston near cylinder bottom in cylinder barrel, and the anterior of piston connects the piston rod extending cylinder head, and piston rod connects
Suspension ring, the tail end of described cylinder barrel offers tail end hydraulic fluid port, and the front end of cylinder barrel offers front end hydraulic fluid port, and described cylinder head offers use
In the discharge opening of the water discharge hydraulic cylinder by entering hydraulic cylinder, the inwall of cylinder barrel offers groove, described piston offers
Cylindrical hole, is provided with latch segment, latch segment and fit depressions and is used for realizing self-locking and the unblock of hydraulic cylinder, locking in cylindrical hole
Being provided with sealing ring between block and cylindrical hole inwall, described piston has hydraulic oil channel, hydraulic oil is arrived by this passage
Being arranged on the check valve in the middle of piston, cylindrical hole connects with check valve, described cylinder bottom is provided with one-way throttle valve, at hydraulic cylinder
When retracting close to cylinder bottom, it is achieved the pooling feature of hydraulic cylinder.
Equipped with the cylinder head 0 type circle that medium inside and outside hydraulic cylinder is separated between described cylinder head and cylinder barrel, between cylinder bottom and cylinder barrel
Equipped with the cylinder bottom 0 type circle that medium inside and outside hydraulic cylinder is separated.
Seal equipped with bar between described cylinder head and piston rod, prevent hydraulic fluid leak and introduced contaminants from entering hydraulic cylinder.
Equipped with piston guide band between described piston and cylinder barrel, guide equipped with piston rod between described piston rod and cylinder barrel
Band.
Described latch segment lower end is cylindrical structural, is positioned at the cylindrical hole offered on piston, and latch segment upper end is in 10 °
～the arcuate structure of 80 ° of radians.
Described latch segment is provided with 2～6,2～6 latch segments be evenly distributed on piston circumferentially by making hydraulic cylinder
Reliable self-locking and uniform force.
There is bit copper the upper end of described latch segment, in order to increase the wearability of latch segment.
Equipped with locking spring on the lower end cylindrical structural of described latch segment, locking spring one end contacts with bottom cylindrical hole
The other end contacts with latch segment, and the spring force of locking spring makes latch segment enter groove, and when unlocking, locking spring plays buffering
Effect, prevents latch segment from quickly exiting groove and clashing into piston.
Described check valve includes push rod spring, push rod, poppet valve core, poppet valve core spring and conical valve base, and push rod is arranged on cone valve
In seat, the end thereof contacts cylinder bottom of push rod, the tail end of the other end contact poppet valve core of push rod, the front end Fluid Contacting force feed of poppet valve core is led to
Road junction, has been provided with the push rod spring of cushioning effect between push rod and piston, the front end of poppet valve core has been provided with cushioning effect
When poppet valve core spring, push rod spring and poppet valve core spring prevent hydraulic cylinder from unlocking, push rod and poppet valve core (clash into piston.
Described suspension ring and piston rod are threaded connection, and suspension ring are used for connecting load.
The technique effect of the present invention: realized self-locking and the pooling feature of hydraulic cylinder by frame for movement.Piston is at hydraulic oil
Effect under retract, when hydraulic cylinder piston moves to close to cylinder bottoms of hydraulic cylinders under the effect of pressure oil, push rod starts and liquid
Cylinder pressure cylinder bottom contacts, and promotes poppet valve core, and then opens check valve, and pressure oil enters latch segment lower end, locking by check valve
Block enters groove under the common effect of pressure oil pressure and spring force, it is achieved the self-locking of hydraulic cylinder.Before hydraulic cylinder stretches out,
Pressure oil enters into latch segment top by one-way throttle valve, and under pressure oil effect, latch segment exits groove, it is achieved hydraulic cylinder
Unblock.During hydraulic cylinder is retracted, when piston is not close to cylinder bottoms of hydraulic cylinders, low pressure oil can be directly direct by hydraulic fluid port
Enter return line, it is also possible to by entering return line through hydraulic fluid port again after one-way throttle valve, when piston is close to cylinder bottoms of hydraulic cylinders
Time, low pressure oil can only be by flowing into return line through hydraulic fluid port after one-way throttle valve；By the aperture of check valve in one-way throttle valve
The movement velocity of piston can be controlled well, and then realize buffering when hydraulic cylinder is retracted.
Accompanying drawing explanation
Fig. 1 is the structural representation of hydraulic cylinder in one embodiment of the invention；
Fig. 2 is locking block structure schematic diagram in one embodiment of the invention；
Fig. 3 is locking mechanism schematic diagram in one embodiment of the invention；
Fig. 4 is auto-lock process schematic diagram in one embodiment of the invention；
Fig. 5 is releasing process schematic diagram in one embodiment of the invention；
Fig. 6 is buffering course schematic diagram in one embodiment of the invention.
In figure, label represents respectively: 1-base, 2-cylinder bottom, 3-piston guide band, 4-cylinder head 0 type circle, and 5-piston rod guides
Band, 6-bar seals, 7-piston rod, 8-tail end hydraulic fluid port, 9-cylinder barrel, 10-piston, 11-front end hydraulic fluid port, 12-discharge opening, 13-cylinder head,
14-suspension ring, 15-latch segment, 16-sealing ring, 17-locking spring, 18-cylinder bottom 0 type circle, 19-one-way throttle valve, 20-push rod bullet
Spring, 21-push rod, 22-poppet valve core, 23-poppet valve core spring, 24-conical valve base, 25-groove, 26-cylindrical hole, 27-check valve.
Detailed description of the invention
The present invention is further described below in conjunction with the accompanying drawings:
As shown in Fig. 13, the end mechanical self-locking hydraulic cylinder of a kind of band buffering, including base 1, base 1 is provided with cylinder
Cylinder 9, the tail end of cylinder barrel 9 is provided with cylinder bottom 2, and the front end of cylinder barrel 9 is provided with cylinder head 13, base 1, cylinder bottom 2, cylinder barrel 9 and cylinder head
13 are assembled into hydraulic cylinder body, are provided with piston 10 in cylinder barrel 9 at cylinder bottom 2, and anterior connection of piston 10 extends cylinder head
The piston rod 7 of 13, piston rod 7 connects suspension ring 14, and the tail end of described cylinder barrel 9 offers tail end hydraulic fluid port 8, and the front end of cylinder barrel 9 is offered
There is front end hydraulic fluid port 11, described cylinder head 13 offers the discharge opening 12 for the water entering hydraulic cylinder is discharged hydraulic cylinder, cylinder barrel 9
Inwall on offer groove 25, described piston 10 offers cylindrical hole 26, latch segment 15 is installed in cylindrical hole 26, locking
Block 15 and groove 25 match self-locking and unblock for realizing hydraulic cylinder, are provided with between latch segment 15 and cylindrical hole 26 inwall
Sealing ring 16, sealing ring 16 effect is that the height force feed preventing piston two ends connects, and described piston 10 has hydraulic oil channel,
Hydraulic oil arrives the check valve 27 being arranged in the middle of piston 10 by this passage, and cylindrical hole 26 connects with check valve 27.
The tail end of described cylinder barrel 9 offers tail end hydraulic fluid port 8, and the front end of cylinder barrel 9 offers front end hydraulic fluid port 11, for hydraulic oil
Enter hydraulic cylinder and low pressure oil discharges hydraulic cylinder.
Between cylinder head 13 and cylinder barrel 9 equipped with the cylinder head 0 type circle 4 that medium inside and outside hydraulic cylinder is separated, cylinder bottom 2 and cylinder barrel 9 it
Between equipped with the cylinder bottom 0 type circle 18 that medium inside and outside hydraulic cylinder is separated, between described cylinder head 13 and piston rod 7 equipped with bar seal 6, prevent
Hydraulic fluid leak and introduced contaminants enter hydraulic cylinder.
Equipped with piston guide band 3 between piston 10 and cylinder barrel 9, guide equipped with piston rod between described piston rod 7 and cylinder barrel 9
Band 5.
Latch segment 15 lower end is cylindrical structural, is positioned on piston 10 cylindrical hole 26 offered, and latch segment 15 upper end is
Arcuate structure in 10 °～80 ° radians.
Latch segment 15 is provided with 2～6,2～6 latch segments 15 be evenly distributed on piston 10 circumferentially by making hydraulic pressure
The reliable self-locking of cylinder and uniform force.
There is bit copper the upper end of latch segment 15, in order to increase the wearability of latch segment 15.
Equipped with locking spring 17 on the lower end cylindrical structural of latch segment 15, bottom locking spring 17 one end and cylindrical hole 26
The contact other end contacts with latch segment 15, and the spring force of locking spring 17 makes latch segment 15 enter groove 25, when unlocking, and locking
Spring 17 plays cushioning effect, prevents latch segment 15 from quickly exiting groove 25 and clashing into piston 10.
Equipped with one-way throttle valve 19 on cylinder bottom 2, when piston 10 stretches out, one-way throttle valve 19 is opened, and piston is unidirectional when retracting
Choke valve 19 cuts out, and is realized the pooling feature of hydraulic cylinder by one-way throttle valve 19；
Check valve 27 includes push rod spring 20, push rod 21, poppet valve core 22, poppet valve core spring 23 and conical valve base 24, push rod 21
It is arranged in conical valve base 24, the end thereof contacts cylinder bottom 2 of push rod 21, the tail end of the other end contact poppet valve core 22 of push rod 21, cone valve
The front end Fluid Contacting pressure oil passage mouth of core 22, has been provided with the push rod spring 20 of cushioning effect between push rod 21 and piston 10, cone
The front end of spool 22 has been provided with the poppet valve core spring 23 of cushioning effect, push rod spring 20 and poppet valve core spring 23 and has prevented hydraulic cylinder
During unblock, push rod 21 and poppet valve core 22 clash into piston 10.
Controlled the keying of check valve 27 with the relative position of cylinder bottom 2 by push rod 21, i.e. push rod 21 contacts with cylinder bottom 2
Time, check valve 27 opens, and when push rod 21 and cylinder bottom 2 separate, check valve 27 is closed.
Suspension ring 14 and piston rod 7 are threaded connection, and suspension ring 14 connect load.
Such as Fig. 4, during hydraulic cylinder is retracted, when hydraulic cylinder piston moves to close to hydraulic cylinder under the effect of pressure oil
During cylinder bottom, push rod starts to contact with cylinder bottoms of hydraulic cylinders, fixes due to base and piston driving push rod is transported to hydraulic cylinder base direction
Dynamic, push rod promotes poppet valve core to move to away from base direction under the effect of cylinder bottom thrust, opens check valve, and pressure oil is by single
Reaching latch segment lower end to valve, latch segment enters groove under the common effect of pressure oil pressure and locking spring elastic force, it is achieved
The self-locking of hydraulic cylinder.
Such as Fig. 5, before hydraulic cylinder stretches out, pressure oil arrives latch segment upper end by one-way throttle valve, and locking given by pressure oil
Block applies a power in opposite direction with locking spring elastic force, and under pressure oil pressure effect, locking spring is compressed, latch segment
Exiting groove, it is achieved the unblock of hydraulic cylinder, after latch segment exits groove, piston is setting in motion, i.e. liquid under the effect of pressure oil
Cylinder pressure starts to stretch out.
Hydraulic cylinder retract or stretch out and push rod not in contact with cylinder bottom during, latch segment is close to hydraulic cylinder internal face,
Under push rod pressure and push rod spring elastic force effect, poppet valve core is close to conical valve base, makes closed check valve.
If Fig. 6 is during hydraulic cylinder is retracted, when piston is not close to cylinder bottom, low pressure oil can directly directly be entered by hydraulic fluid port
Enter return line, it is also possible to by entering return line through hydraulic fluid port after one-way throttle valve, when piston is close to cylinder bottom, a part of low
Force feed can only be by flowing into return line through hydraulic fluid port after one-way throttle valve；Control the area of restriction in one-way throttle valve can adjust
The joint low pressure oil flow by one-way throttle valve, and then control the movement velocity of piston, it is achieved buffering when hydraulic cylinder is retracted.
On the one hand in latch segment lower end equipped with locking spring, its effect is latch segment when moving to groove location, spring force
Latch segment can be made to enter groove；On the other hand it is to avoid during hydraulic cylinder self locking, the pressure oil pressure of latch segment lower end
Time relatively low, latch segment exits groove automatically, make hydraulic cylinder can not self-locking and when preventing hydraulic cylinder from unlocking, latch segment quickly moves back
Go out groove and piston clashes into.
As it will be easily appreciated by one skilled in the art that and the foregoing is only presently preferred embodiments of the present invention, not in order to
Limit the present invention, all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, all should comprise
Within protection scope of the present invention.
Claims (10)
1. an end mechanical self-locking hydraulic cylinder for band buffering, including base (1), base (1) is provided with cylinder barrel (9), cylinder barrel
(9) tail end is provided with cylinder bottom (2), and the front end of cylinder barrel (9) is provided with cylinder head (13), base (1), cylinder bottom (2), cylinder barrel (9) with
And cylinder head (13) is assembled into hydraulic cylinder body, in cylinder barrel (9), it is provided with piston (10), before piston (10) near cylinder bottom (2) place
Portion connects the piston rod (7) extending cylinder head (13), and piston rod (7) connects suspension ring (14), it is characterised in that: described cylinder barrel (9)
Tail end offer tail end hydraulic fluid port (8), the front end of cylinder barrel (9) offers front end hydraulic fluid port (11), and described cylinder head offers on (13)
For the water entering hydraulic cylinder being discharged the discharge opening (12) of hydraulic cylinder, the inwall of cylinder barrel (9) offers groove (25), described
Offer cylindrical hole (26) on piston (10), latch segment (15), latch segment (15) and groove (25) are installed in cylindrical hole (26)
Match self-locking and the unblock for realizing hydraulic cylinder, is provided with sealing ring between latch segment (15) and cylindrical hole (26) inwall
(16), described piston has hydraulic oil channel on (10), and hydraulic oil arrives the list being arranged in the middle of piston (10) by this passage
To valve (27), cylindrical hole (26) connects with check valve (27), described cylinder bottom (2) is provided with one-way throttle valve (19), at hydraulic pressure
When cylinder is retracted close to cylinder bottom (2), it is achieved the pooling feature of hydraulic cylinder.
The end mechanical self-locking hydraulic cylinder of a kind of band the most according to claim 1 buffering, it is characterised in that: described cylinder head
(13) equipped with the cylinder head 0 type circle (4) that medium inside and outside hydraulic cylinder is separated and between cylinder barrel (9), between cylinder bottom (2) and cylinder barrel (9)
Equipped with the cylinder bottom 0 type circle (18) that medium inside and outside hydraulic cylinder is separated.
The end mechanical self-locking hydraulic cylinder of a kind of band the most according to claim 1 buffering, it is characterised in that: described cylinder head
(13) and seal (6) equipped with bar between piston rod (7), prevent hydraulic fluid leak and introduced contaminants from entering hydraulic cylinder.
The end mechanical self-locking hydraulic cylinder of a kind of band the most according to claim 1 buffering, it is characterised in that: described piston
(10) equipped with piston guide band (3) and between cylinder barrel (9), equipped with piston rod guidance tape between described piston rod (7) and cylinder barrel (9)
(5)。
The end mechanical self-locking hydraulic cylinder of a kind of band the most according to claim 1 buffering, it is characterised in that: described latch segment
(15) lower end is cylindrical structural, is positioned on piston (10) cylindrical hole (26) offered, latch segment (15) upper end be in 10 °～
The arcuate structure of 80 ° of radians.
The end mechanical self-locking hydraulic cylinder of a kind of band the most according to claim 5 buffering, it is characterised in that: described latch segment
(15) be provided with 2～6,2～6 latch segments (15) be evenly distributed on piston (10) circumferentially by make hydraulic cylinder reliable from
Lock and uniform force.
The end mechanical self-locking hydraulic cylinder of a kind of band the most according to claim 6 buffering, it is characterised in that: described latch segment
(15) there is bit copper upper end, in order to increase the wearability of latch segment (15).
8. the end mechanical self-locking hydraulic cylinder buffered according to a kind of band described in claim 5 or 6 or 7, it is characterised in that: described
Equipped with locking spring (17) on the lower end cylindrical structural of latch segment (15), locking spring (17) one end and cylindrical hole (26) bottom
The contact other end contacts with latch segment (15), and the spring force of locking spring (17) makes latch segment (15) enter groove (25), is solving
During lock, locking spring (17) plays cushioning effect, prevents latch segment (15) from quickly exiting groove (25) and occurring with piston (10)
Clash into.
9. the end mechanical self-locking hydraulic cylinder buffered according to a kind of band described in claim 1 or 8, it is characterised in that: described list
Push rod spring (20), push rod (21), poppet valve core (22), poppet valve core spring (23) and conical valve base (24), push rod is included to valve (27)
(21) it is arranged in conical valve base (24), the end thereof contacts cylinder bottom (2) of push rod (21), the other end contact poppet valve core of push rod (21)
(22) tail end, the front end Fluid Contacting pressure oil passage mouth of poppet valve core (22), it is provided with slow between push rod (21) and piston (10)
The push rod spring (20) of punching effect, the front end of poppet valve core (22) has been provided with the poppet valve core spring (23) of cushioning effect, push rod bullet
When spring (20) and poppet valve core spring (23) prevent hydraulic cylinder from unlocking, push rod (21) and poppet valve core (22) clash into piston (10).
The end mechanical self-locking hydraulic cylinder of a kind of band the most according to claim 1 buffering, it is characterised in that: described suspension ring
(14) being threaded connection with piston rod (7), suspension ring (14) connect load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610800738.5A CN106286464B (en) | 2016-09-02 | 2016-09-02 | A kind of end mechanical self-locking hydraulic cylinder of band buffering |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610800738.5A CN106286464B (en) | 2016-09-02 | 2016-09-02 | A kind of end mechanical self-locking hydraulic cylinder of band buffering |
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| CN106286464A true CN106286464A (en) | 2017-01-04 |
| CN106286464B CN106286464B (en) | 2017-12-05 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107061408A (en) * | 2017-04-12 | 2017-08-18 | 郑元阳 | A kind of built-in rear ends cylinder with lock of compact |
| CN107314136A (en) * | 2017-06-19 | 2017-11-03 | 太仓市宇航造纸机械厂 | A kind of safety valve |
| CN107747573A (en) * | 2017-09-26 | 2018-03-02 | 铜陵汇宇实业有限公司 | A kind of Telescopic protection system |
| CN110398177A (en) * | 2019-07-26 | 2019-11-01 | 南京理工军邦特种智能装备研究院有限公司 | It is a kind of to simulate the defeated device for bouncing journey Projectile Motion and its analogy method |
| CN111894936A (en) * | 2020-06-30 | 2020-11-06 | 河海大学常州校区 | Hydraulic cylinder with external leakage service-proof function |
| CN111894935A (en) * | 2020-06-30 | 2020-11-06 | 河海大学常州校区 | Hydraulic cylinder with external leakage service-proof function |
| CN112081792A (en) * | 2020-07-29 | 2020-12-15 | 太原重工股份有限公司 | Piston assembly with locking function |
| CN112983924A (en) * | 2019-12-18 | 2021-06-18 | 比亚迪股份有限公司 | Plunger cylinder and vehicle |
| CN113530916A (en) * | 2021-08-25 | 2021-10-22 | 马庆国 | Single-acting supporting hydraulic cylinder |
| CN113530915A (en) * | 2021-08-25 | 2021-10-22 | 马庆国 | Self-locking type single-action hydraulic cylinder |
| CN113565830A (en) * | 2021-08-25 | 2021-10-29 | 马庆国 | Single-acting hydraulic cylinder |
| CN114215816A (en) * | 2021-12-04 | 2022-03-22 | 建湖县八达液压机械有限公司 | Self-locking device of telescopic hydraulic oil cylinder and mechanical locking hydraulic oil cylinder provided with same |
| CN115289096A (en) * | 2022-09-29 | 2022-11-04 | 常州市振跃液压机械有限公司 | Take auto-lock protection device's explosion-proof hydraulic cylinder |
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| US4524676A (en) * | 1984-01-19 | 1985-06-25 | American Standard Inc. | Hydraulic cylinder locking device |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061408A (en) * | 2017-04-12 | 2017-08-18 | 郑元阳 | A kind of built-in rear ends cylinder with lock of compact |
| CN107061408B (en) * | 2017-04-12 | 2019-01-25 | 郑元阳 | A kind of built-in rear ends cylinder with lock of compact |
| CN107314136A (en) * | 2017-06-19 | 2017-11-03 | 太仓市宇航造纸机械厂 | A kind of safety valve |
| CN107747573A (en) * | 2017-09-26 | 2018-03-02 | 铜陵汇宇实业有限公司 | A kind of Telescopic protection system |
| CN110398177A (en) * | 2019-07-26 | 2019-11-01 | 南京理工军邦特种智能装备研究院有限公司 | It is a kind of to simulate the defeated device for bouncing journey Projectile Motion and its analogy method |
| CN112983924A (en) * | 2019-12-18 | 2021-06-18 | 比亚迪股份有限公司 | Plunger cylinder and vehicle |
| CN112983924B (en) * | 2019-12-18 | 2022-05-13 | 比亚迪股份有限公司 | Plunger cylinder and vehicle |
| CN111894936A (en) * | 2020-06-30 | 2020-11-06 | 河海大学常州校区 | Hydraulic cylinder with external leakage service-proof function |
| CN111894935A (en) * | 2020-06-30 | 2020-11-06 | 河海大学常州校区 | Hydraulic cylinder with external leakage service-proof function |
| CN112081792A (en) * | 2020-07-29 | 2020-12-15 | 太原重工股份有限公司 | Piston assembly with locking function |
| CN112081792B (en) * | 2020-07-29 | 2022-11-08 | 太原重工股份有限公司 | Piston assembly with locking function |
| CN113530916A (en) * | 2021-08-25 | 2021-10-22 | 马庆国 | Single-acting supporting hydraulic cylinder |
| CN113565830A (en) * | 2021-08-25 | 2021-10-29 | 马庆国 | Single-acting hydraulic cylinder |
| CN113530915A (en) * | 2021-08-25 | 2021-10-22 | 马庆国 | Self-locking type single-action hydraulic cylinder |
| CN113565830B (en) * | 2021-08-25 | 2023-09-19 | 重庆众颖熙科技有限公司 | Single-acting hydraulic cylinder |
| CN114215816A (en) * | 2021-12-04 | 2022-03-22 | 建湖县八达液压机械有限公司 | Self-locking device of telescopic hydraulic oil cylinder and mechanical locking hydraulic oil cylinder provided with same |
| CN114215816B (en) * | 2021-12-04 | 2024-02-02 | 建湖县八达液压机械有限公司 | Mechanical locking hydraulic cylinder |
| CN115289096A (en) * | 2022-09-29 | 2022-11-04 | 常州市振跃液压机械有限公司 | Take auto-lock protection device's explosion-proof hydraulic cylinder |
| CN115289096B (en) * | 2022-09-29 | 2023-02-03 | 常州市振跃液压机械有限公司 | Take auto-lock protection device's explosion-proof hydraulic cylinder |
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