CN208749707U - Commutation balance pile-up valve - Google Patents
Commutation balance pile-up valve Download PDFInfo
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- CN208749707U CN208749707U CN201821492047.4U CN201821492047U CN208749707U CN 208749707 U CN208749707 U CN 208749707U CN 201821492047 U CN201821492047 U CN 201821492047U CN 208749707 U CN208749707 U CN 208749707U
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- valve
- oil
- valve body
- spool
- balance
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- 238000007789 sealing Methods 0.000 claims description 18
- 238000013016 damping Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model belongs to valve, particularly relates to a kind of commutation balance pile-up valve.Including hydraulic direction-changing mechanism, pneumatic actuator and balance valve system, hydraulic direction-changing mechanism and balance valve system are set in valve body along axial parallel interval, the pneumatic movement actuating station of reversing mechanism is fixedly connected with the first spool in hydraulic direction-changing mechanism, the first oil outlet chamber, the second oil outlet chamber of oil suction chamber two sides in hydraulic direction-changing mechanism are connected to by oil duct with the inner end for balancing the pressure regulation valve body mounting hole in valve system, balance the duct of the second spool periphery in valve system by being connected to outside oil duct and valve body.The utility model efficiently solves the technical problems such as a possibility that loosely organized, oil leak existing in the prior art height, has many advantages, such as compact-sized, not easy oil leakage, save the cost.
Description
Technical field
The utility model belongs to valve, particularly relates to a kind of commutation balance pile-up valve.
Background technique
With the continuous development of modern industry, requirement of each field to hydraulic system is higher and higher, in addition to it is simple, practical,
Energy conservation has outside certain service life, also requires control precisely and equipment is reliable for operation, safe.Basic hydraulic circuit includes: power
Element, control element, safety element, executive component.
Balanced valve belongs to one of safety element, its front end is through high-pressure oil pipe and changing in control element in hydraulic circuit
It is connected to valve, the oil cylinder or hydraulic motor of rear end and executive component connect.When mechanism traffic direction and load gravity effect side
To it is opposite when, balanced valve only serves path effect, when the high-pressure oil pipe cracking oil leak between balanced valve and reversal valve, balanced valve
Rodless cavity oil liquid can be closed, so that weight is rested on middle position and remains stationary, avoid fall event, plays safeguard protection work
With；When mechanism traffic direction is consistent with load gravity action direction, can be prevented by the oil mass of balanced valve because of load and mechanism
The gravity of itself and make mechanism generate Accelerating running, can play the role of control load decrease speed；When mechanism stops work
When making, balanced valve internal oil stops mechanism and load at an arbitrary position on demand by locked closing, and plays hydraulic lock
Effect.
Balanced valve and reversal valve are two individual units in current hydraulic circuit, before the rear end of reversal valve and balanced valve
End is connected with high-pressure oil pipe.Above-mentioned technological deficiency of the existing technology is first is that high-pressure oil pipe between the two has the wind of explosion
Danger, causes oil liquid to reveal, has a negative impact to economy and environment；Second is that adding somewhat to system with oil pipe connection
Cost；Third is that since tie point is more, so there are the possible positions of oil leak to become more.Due to the skill in the presence of the above-mentioned prior art
Art defect, there is an urgent need to a kind of pile-up valves for integrating reversal valve and balanced valve in market.
Applicant does not have found patent literature report identical or similar to the present application.
Utility model content
The purpose of this utility model is to provide a kind of commutations to balance pile-up valve, by using by reversal valve and balanced valve
Structure and function are highly integrated, reach and realize compact-sized, reduction leakage, reduce the purpose of failure rate.
The overall technology design of the utility model is:
Commutation balance pile-up valve, including hydraulic direction-changing mechanism, pneumatic actuator and balance valve system, hydraulic direction-changing mechanism
It is set in valve body with balance valve system along axial parallel interval, the movement actuating station and hydraulic direction-changing mechanism of pneumatic reversing mechanism
In the first spool be fixedly connected, the first oil outlet chamber, the second oil outlet chamber of the oil suction chamber two sides in hydraulic direction-changing mechanism pass through oil
Road is connected to the inner end of the pressure regulation valve body mounting hole in balance valve system, and the duct for balancing the second spool periphery in valve system is logical
It is connected to outside oil channel and valve body.
The particular technique of the utility model is conceived also:
The main function of pneumatic reversing mechanism is to provide power source for hydraulic direction-changing mechanism, to guarantee in hydraulic direction-changing mechanism
The first spool axial movement to realize movement switching, preferred technical implementation way is the movement of pneumatic reversing mechanism
Actuating station is the cylinder connecting shaft in pneumatic reversing mechanism.
The preferred technical implementation way of hydraulic direction-changing mechanism is, hydraulic direction-changing mechanism include valve body, the first spool, screw plug,
First O-ring seal, valve body are equipped with oil suction chamber, the first oil outlet chamber, the second oil outlet chamber and oil back chamber, the first oil outlet chamber, the
Two oil outlet chambers are opened in the two sides of oil suction chamber respectively.
More preferably structure type is that the first spool is axially disposed at valve body working connection hole in hydraulic direction-changing mechanism
In, oil suction chamber, the first oil outlet chamber, the second oil outlet chamber, oil back chamber are offered on the first valve body, between the first spool both ends and valve body
It is sealed by the first O-ring seal, the rear end in valve body working connection hole is packaged with screw plug.
The preferred technical implementation way of pneumatic actuator is that pneumatic actuator includes cylinder, spring pocket, resets bullet
It is spring, spring base, cylinder connecting shaft, first piston, fastening screw, the first sealing ring, attachment screw, main valve stem plain cushion, second O-shaped
Sealing ring opens up the first port and the second port on the cylinder of air rammer two sides.
More preferably structure type is that main valve stem plain cushion, spring base, reset spring are assemblied in pneumatic actuator
One spool front end outer side, spring pocket is set on the outside of cylinder connecting shaft and is sealed by the second O-ring seal, before cylinder connecting shaft
End is assembled with the first spool end thread, and piston connect shaft end with cylinder and fastened by fastening screw, and cylinder is close by first
Seal sealing shroud is loaded on piston and spring pocket outside and passes through attachment screw fastening.
The balance preferred technical implementation way of valve system is that balance valve system is lived including balance core, the second spool, second
Plug, adjusts screw, nut, pressure spring, compressed spring, the second sealing ring at pressure regulation pad, pressure regulation valve body, pressure regulation gasket.
More preferably structure type is to balance balance core in valve system to be set in valve body hole, and pressure regulation valve body symmetrically assembles
In in the screw hole of valve body left and right ends, pressure regulation valve inner is equipped with by pressure regulation gasket, adjusts screw, nut, pressure regulation pad and controlled
The pressure spring of system, the second spool outer end press in pressure regulation pad inner surface and with second piston main aperture conical surface seal, the second valve
In-core end and the setting of balance core both ends interval, second piston are equipped with pressure spring loaded in valve body hole inside second piston.
Applicant it should be understood that
Term " two sides ", " both ends ", " outer end ", " front end ", " end ", " outside " etc. in the description of the present invention,
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and being merely for convenience of simplified description, this is practical
It is novel, rather than the device or element of indication or suggestion meaning must have a particular orientation, constructed and grasped with specific orientation
Make, therefore should not be understood as limiting the present invention.
Technological progress acquired by the utility model is:
1, it is smaller to occupy installation space for the utility model compact overall structure.
2, do not have to oil pipe between balanced valve and reversal valve to connect, save the cost reduces failure rate.
3, operation is adjusted more convenient, and since present dumper balanced valve is mounted on car bottom mostly, balanced valve is opened
It is inconvenient that pressure is adjusted, and the utility model balanced valve and reversal valve are structure as a whole, and balance valve opening pressure property easy to adjust mentions
It is high.
4, using duct substitution existing product is opened up in valve block, the pressure boundary of equipment is further improved, is reduced
Failure rate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Appended drawing reference in attached drawing is as follows:
1, valve body；2, the first spool；3, screw plug；4, the first O-ring seal；5, cylinder；6, spring pocket；7, reset spring；
8, spring base；9, cylinder connecting shaft；10, first piston；11, fastening screw；12, the first sealing ring；13, attachment screw；14, main
Valve rod plain cushion；15, the second O-ring seal；16, core is balanced；17, the second spool；18, second piston；19, pressure regulation pad；20, pressure regulation
Valve body；21, pressure regulation gasket；22, screw is adjusted；23, nut；24, pressure spring；25, compressed spring；26, the second sealing ring；
P, oil suction chamber；A, the first oil outlet chamber；B, the second oil outlet chamber；O, oil back chamber；I, the first port；II, the second port.
Specific embodiment
The utility model is described further with reference to embodiments, but should not be construed as the limit to the utility model
Fixed, the protection scope of the utility model is subject to the content of claim record, any equivalent skill made according to specification
Art means replacement, all without departing from the protection scope of the utility model.
The overall structure of the present embodiment is as shown, including hydraulic direction-changing mechanism, pneumatic actuator and balanced valve machine
Structure, hydraulic direction-changing mechanism and balance valve system are set in valve body 1 along axial parallel interval, and the movement of pneumatic reversing mechanism executes
End is threadedly coupled with the first spool 2 in hydraulic direction-changing mechanism, the first oil outlet chamber of the two sides oil suction chamber P in hydraulic direction-changing mechanism
A, the second oil outlet chamber B is connected to by oil duct with the inner end for balancing 20 mounting hole of pressure regulation valve body in valve system, is balanced in valve system
17 periphery of the second spool duct by being connected to outside oil duct and valve body 1.
The movement actuating station of pneumatic reversing mechanism is the cylinder connecting shaft 9 in pneumatic reversing mechanism.
Hydraulic direction-changing mechanism includes valve body 1, the first spool 2, screw plug 3, the first O-ring seal 4, and valve body is equipped with oil suction chamber
P, the first oil outlet chamber A, the second oil outlet chamber B and oil back chamber O, the first oil outlet chamber A, the second oil outlet chamber B are opened in oil suction chamber respectively
The two sides of P.The first spool 2 is axially disposed in 1 working connection hole of valve body in hydraulic direction-changing mechanism, is offered on the first valve body 2
Oil suction chamber P, the first oil outlet chamber A, the second oil outlet chamber B, oil back chamber O, it is O-shaped close by first between 2 both ends of the first spool and valve body 1
Seal 4 seals, and the rear end in 1 working connection hole of valve body is packaged with screw plug 3.
Pneumatic actuator includes cylinder 5, spring pocket 6, reset spring 7, spring base 8, cylinder connecting shaft 9, first piston
10, fastening screw 11, the first sealing ring 12, attachment screw 13, main valve stem plain cushion 14, the second O-ring seal 15, air rammer
The first port I and the second port II are opened up on the cylinder 5 of 10 two sides.Main valve stem plain cushion 14, spring base in pneumatic actuator
8, reset spring 7 is assemblied in 2 front end outer side of the first spool, and spring pocket 6 is set on the outside of cylinder connecting shaft 9 and O-shaped by second
Sealing ring 15 seals, and 9 front end of cylinder connecting shaft and 2 end thread of the first spool are assembled, and piston 10 and 9 end of cylinder connecting shaft are logical
The fastening of fastening screw 11 is crossed, cylinder 5 loaded on piston 10 and 6 outside of spring pocket and passes through connection by 12 sealing shroud of the first sealing ring
Screw 13 fastens.
Balancing valve system includes balance core 16, the second spool 17, second piston 18, pressure regulation pad 19, pressure regulation valve body 20, pressure regulation
Gasket 21 adjusts screw 22, nut 23, pressure spring 24, compressed spring 25, the second sealing ring 26.It balances in valve system and puts down
The core 16 that weighs is set in 1 hole of valve body, and pressure regulation valve body 20 is symmetrically assemblied in the screw hole of 1 left and right ends of valve body, inside pressure regulation valve body 20
Equipped with by pressure regulation gasket 21, adjust screw 22, the pressure spring 24 that nut 23, pressure regulation pad 19 are controlled, outside the second spool 17
End press in pressure regulation pad 19 inner surface and with 18 main aperture conical surface seal of second piston, 17 inner end of the second spool and balance 16 liang of core
The setting of end interval, second piston 18 are equipped with pressure spring 24 loaded in 1 hole of valve body inside second piston 18.
The working principle of the present embodiment is:
The ventilation of first port I, under the influence of air pressure, first piston 10 drives cylinder connecting shaft 9 to move right, due to gas
Cylinder connecting shaft 9 and the first spool 2 are threadedly coupled, so piston 10 moves right with movable valve plug 2, oil suction chamber P and first goes out at this time
Oil pocket A is communicated, and oil liquid enters left hand balance valve along oil duct, and a part of oil can be pushed by the damping hole at 17 center of the second spool
Balance core 16 moves right, and a part of oil liquid can act on 18 end face of second piston, since 25 compressing force of compressed spring is less than
24 compressing force of pressure spring makes the second spool 17 and second piston so second piston 18 can move right under pressure
Sealing state between 18 disappears, and oil liquid enters oil cylinder rodless cavity by oil duct, and rod chamber oil liquid can enter the right side by oil back chamber O
Lateral balance valve, since right hand balance valve piston 18 and the second spool 17 are in sealing state, so oil cylinder rodless cavity oil liquid pressure
It increases, as the raising balance core 16 of pressure increases to the thrust of the second spool 17 to the right, when thrust is greater than pressure spring 24
Sealing state after compressing force between the second spool 17 and second piston 18 disappears, and oil liquid can pass through balanced valve and the second oil outlet chamber
B oil return box.
The ventilation of second port II, principle and the first port I are identical.
Claims (8)
1. commutation balance pile-up valve, including hydraulic direction-changing mechanism, pneumatic actuator and balance valve system, it is characterised in that hydraulic
Reversing mechanism and balance valve system are set in valve body (1) along axial parallel interval, the movement actuating station of pneumatic reversing mechanism with
The first spool (2) in hydraulic direction-changing mechanism is fixedly connected, first oil outlet chamber of two sides oil suction chamber (P) in hydraulic direction-changing mechanism
(A), the second oil outlet chamber (B) is connected to by oil duct with the inner end for balancing pressure regulation valve body (20) mounting hole in valve system, balanced valve
The duct of the second spool (17) periphery in mechanism outside oil duct and valve body (1) by being connected to.
2. commutation according to claim 1 balances pile-up valve, it is characterised in that the movement of the pneumatic reversing mechanism is held
Row end is the cylinder connecting shaft (9) in pneumatic reversing mechanism.
3. commutation according to claim 1 or 2 balances pile-up valve, it is characterised in that hydraulic direction-changing mechanism include valve body (1),
First spool (2), screw plug (3), the first O-ring seal (4), valve body go out equipped with oil suction chamber (P), the first oil outlet chamber (A), second
Oil pocket (B) and oil back chamber (O), the first oil outlet chamber (A), the second oil outlet chamber (B) are opened in the two sides of oil suction chamber (P) respectively.
4. commutation according to claim 3 balances pile-up valve, it is characterised in that the first spool (2) edge in hydraulic direction-changing mechanism
It is axially set in valve body (1) working connection hole, oil suction chamber (P) is offered on the first spool (2), the first oil outlet chamber (A), second is gone out
Oil pocket (B), oil back chamber (O) are sealed between the first spool (2) both ends and valve body (1) by the first O-ring seal (4), valve body
(1) rear end in working connection hole is packaged with screw plug (3).
5. commutation according to claim 1 or 2 balances pile-up valve, it is characterised in that pneumatic actuator include cylinder (5),
Spring pocket (6), reset spring (7), spring base (8), cylinder connecting shaft (9), first piston (10), fastening screw (11), first
Sealing ring (12), attachment screw (13), main valve stem plain cushion (14), the second O-ring seal (15), the gas of air rammer (10) two sides
The first port (I) and the second port (II) are opened up on cylinder (5).
6. commutation according to claim 5 balances pile-up valve, it is characterised in that main valve stem plain cushion in pneumatic actuator
(14), spring base (8), reset spring (7) are assemblied in the first spool (2) front end outer side, and spring pocket (6) is set in cylinder connecting shaft
(9) it is sealed on the outside of and by the second O-ring seal (15), cylinder connecting shaft (9) front end and the first spool (2) end thread fill
Match, piston (10) and cylinder connecting shaft (9) end are fastened by fastening screw (11), and cylinder (5) passes through the first sealing ring (12)
Sealing shroud is fastened loaded on piston (10) and spring pocket (6) outside and by attachment screw (13).
7. commutation according to claim 1 or 2 balances pile-up valve, it is characterised in that balance valve system includes balance core
(16), the second spool (17), second piston (18), pressure regulation pad (19), pressure regulation valve body (20), pressure regulation gasket (21), adjusting spiral shell
Follow closely (22), nut (23), pressure spring (24), compressed spring (25), the second sealing ring (26).
8. commutation according to claim 7 balances pile-up valve, it is characterised in that balance core (16) is set in balance valve system
In valve body (1) hole, pressure regulation valve body (20) is symmetrically assemblied in the screw hole of valve body (1) left and right ends, is set inside pressure regulation valve body (20)
Have by pressure regulation gasket (21), adjust screw (22), the pressure spring (24) that nut (23), pressure regulation pad (19) are controlled, second
Spool (17) outer end press in pressure regulation pad (19) inner surface and with second piston (18) main aperture conical surface seal, the second spool (17)
Inner end and the setting of balance core (16) both ends interval, the second spool (17) is interior to open up damping hole along axial direction, and second piston (18) is loaded on
In valve body (1) hole, pressure spring (24) are equipped with inside second piston (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821492047.4U CN208749707U (en) | 2018-09-12 | 2018-09-12 | Commutation balance pile-up valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821492047.4U CN208749707U (en) | 2018-09-12 | 2018-09-12 | Commutation balance pile-up valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208749707U true CN208749707U (en) | 2019-04-16 |
Family
ID=66084114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821492047.4U Active CN208749707U (en) | 2018-09-12 | 2018-09-12 | Commutation balance pile-up valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208749707U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114484023A (en) * | 2022-01-17 | 2022-05-13 | 宁波威森搏乐机械制造有限公司 | A kind of balance valve with sensitive control |
| CN115388199A (en) * | 2022-08-29 | 2022-11-25 | 杭州电子科技大学 | Automatic resetting reversing valve with acting cylinder |
-
2018
- 2018-09-12 CN CN201821492047.4U patent/CN208749707U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114484023A (en) * | 2022-01-17 | 2022-05-13 | 宁波威森搏乐机械制造有限公司 | A kind of balance valve with sensitive control |
| CN115388199A (en) * | 2022-08-29 | 2022-11-25 | 杭州电子科技大学 | Automatic resetting reversing valve with acting cylinder |
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