CN208935463U - A kind of servo synchronization hydraulic valve - Google Patents
A kind of servo synchronization hydraulic valve Download PDFInfo
- Publication number
- CN208935463U CN208935463U CN201821597903.2U CN201821597903U CN208935463U CN 208935463 U CN208935463 U CN 208935463U CN 201821597903 U CN201821597903 U CN 201821597903U CN 208935463 U CN208935463 U CN 208935463U
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- CN
- China
- Prior art keywords
- valve
- servo motor
- servo
- oil
- oil outlet
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- 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
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Abstract
The utility model discloses a kind of servo synchronization hydraulic valve, including valve body, servo motor and encoder, servo motor is connected by shaft joint with the lead screw in valve body, and servo motor is set to valve body one end, and encoder is set on servo motor.The utility model drives lead screw rotary control valve core to move in valve chamber using servo motor, the aperture of two oil outlets of A, B is adjusted, to change the oil pump capacity of two oil outlets of A, B；Two cylinder stroke signals are obtained by encoder, are compared by signal, the flow of two oil outlets is controlled, form closed-loop control.For the utility model not by load effect, synchronization accuracy is high, realizes double-cylinder hydraulic flow system flow motorized adjustment, and non-pressure is adjusted, so that fuel-flow control is controllable.Twin-tub moves not by load effect, solves the problems, such as that conventional synchronization valve synchronization accuracy is low.
Description
Technical field
The utility model belongs to synchronous hydraulic valve technical field, and in particular to a kind of servo synchronization hydraulic valve.
Background technique
Hydraulic valve be it is a kind of with pressure oil operate Automation Elements, she by distributing valve pressure oil control, usually with electricity
Magnetic distributing valve is applied in combination, and can be used for the on-off of far distance control power station oil, gas and water pipe-line system.It is usually used in clamping, controls
The oil circuits such as system, lubrication.And there is multiple, such as syncmotor, mechanical same for the synchronous control mode of executive component in hydraulic system
Step, proportioning valve, servo valve, with paces and emerging digital valve etc., and conventional synchronization valve is poor by spool pressure at both sides
Change spool position, realize oil mass distribution, leads to occur that synchronous valve synchronization accuracy is larger by load effect, precision is lower asks
Topic.
Summary of the invention
Goal of the invention: low for synchronous valve synchronization accuracy in the prior art, by the big problem of load effect, the utility model
Be designed to provide a kind of servo synchronization hydraulic valve.
Technical solution: to solve the above problems, the utility model adopts the following technical solutions:
A kind of servo synchronization hydraulic valve, including valve body, servo motor and encoder；
The valve body includes valve chamber, spool, end cap, tailstock, oil inlet, oil outlet A and oil outlet B；The oil outlet A and
It is equipped with valve seat between oil outlet B, is equipped with valve seat at the oil inlet；The spool is set in valve chamber；
The end cap and tailstock are divided into valve body both ends, and the oil outlet A and oil outlet B are set to valve body top, it is described into
Hydraulic fluid port is set to body base, and the lead screw passes through spool and is connected by shaft joint with servo motor, and the servo motor is set to tail
Seat one end；The oil outlet A is close to end cover side, and the oil outlet B is close to servo motor side；
The encoder is set on servo motor.
Preferably, the valve seat is rubber, plastics or metal material.
Preferably, the oil inlet is set in valve seat there are two inflow pipeline, is connected to valve chamber.
Preferably, the lead screw is tightly connected by the first sealing ring and valve seat and tailstock.
Preferably, it is tightly connected between the valve seat and end cap using the second sealing ring.
Preferably, the servo motor is fixed on valve body by ring flange.
Preferably, the valve body and servo motor are located in the same mounting seat.
Preferably, the valve body and servo motor are fixed in the mounting seat by shockproof foot.
The utility model has the advantages that compared with the prior art, the utility model has the following beneficial effects:
(1) the utility model drives lead screw rotary control valve core to move in valve chamber using servo motor, adjusts A, B two
The aperture of oil outlet, and change the oil pump capacity of two oil outlets of A, B.
(2) the utility model controls the flow of two oil outlets by comparing two cylinder stroke signals, forms closed-loop control, no
By load effect, synchronization accuracy is high.
(3) the utility model structure is simple, and design is rationally, easily fabricated.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of servo synchronization hydraulic valve；
Wherein, valve seat 1, spool 2, end cap 3, tailstock 4, lead screw 5, shaft joint 6, servo motor 7, encoder 8, the first sealing
Circle 9, the second sealing ring 9 ', oil inlet 10, oil outlet A 11, oil outlet B 12.
Specific embodiment
The utility model is further described below combined with specific embodiments below.
Embodiment 1
A kind of servo synchronization hydraulic valve, as described in Figure 1.As shown in Figure 1, servo synchronization hydraulic valve includes valve body, servo electricity
Machine and encoder；Valve body includes valve chamber, spool, end cap, tailstock, oil inlet, oil outlet A and oil outlet B；Oil outlet A and fuel-displaced
It is equipped with valve seat between mouth B, is equipped with valve seat at oil inlet；Spool is set in valve chamber；Valve seat is plastic material, corrosion-resistant, leakproofness
It is good.
End cap and tailstock are divided into valve body both ends, and oil outlet A and oil outlet B are set to valve body top, and oil inlet is set to valve body
Bottom, lead screw pass through spool and are connected by shaft joint with servo motor, and servo motor is fixed on valve body tailstock one by ring flange
End；Encoder is set on servo motor.
Oil inlet is set in valve seat there are two inflow pipeline, is connected to valve chamber, two oil inlets, which are arranged, can make valve
Intracavitary oil inlet quantity is uniform.
Lead screw is tightly connected by the first sealing ring and valve seat and tailstock, close using the second sealing ring between valve seat and end cap
Envelope connection.Valve body and servo motor are fixed in the same mounting seat by shockproof foot.
Embodiment 2
Using application of the servo synchronization hydraulic valve in embodiment 1 in control double-cylinder hydraulic valve synchronous operation, that is, use
Servo motor drives lead screw rotary control valve core to move in valve chamber, the aperture of two oil outlets of A, B is adjusted, to change A, B
The oil pump capacity of two oil outlets；Two cylinder stroke signals are obtained by encoder, are compared by signal, the stream of two oil outlets is controlled
Amount forms closed-loop control, and not by load effect, synchronization accuracy is high.
Specific steps are as follows:
(1) device inspection and check and correction: whether check device is in normal operating condition, and proofreads twin-tub stroke to oil pump capacity
Determining whether for variation is correct, after checking and proofreading qualification, carries out step (2)~(7)；
(2) standard data acquisition: encoder acquires position signal of the oil cylinder A in initialization, is denoted as the standard of oil cylinder A
Position signal lA；Position signal of the oil cylinder B in initialization is denoted as the standard l of oil cylinder BB；Setting oil outlet standard deviation goes out
Oil mass is ΔAAnd ΔB, it is positive value, is set as 1~10mm；Oil cylinder A and oil cylinder B are in normal place, oil outlet A and oil outlet B
Go out oil stream amount it is equal；
(3) operation data acquires: the position signal l of encoder real-time oil cylinder A and oil cylinder BA′And lB′, and will be collected
Operation angle uploads control system, and calculating operation misalignment angle is ΔA′=| lA-lA′| and ΔB′=| lB-lB′|；
(4) it executes program of rectifying a deviation: working as ΔA′< ΔAOr ΔB′< ΔB, system execution normal operation program；Work as ΔA′> ΔA
When, operation programming jump to step (5)；Work as ΔB′When > Δ B, operation programming jump to step (6)；
(5) oil cylinder A runs program and adjusts program: to ΔA″=lA-lA′Judged,
Work as ΔA″When > 0, servo motor band movable valve plug is moved to end cover side, then oil outlet A oil mass reduces, and fuel-displaced B flow increases
Greatly, illustrate that A cylinder speed is fast, i.e. adjusting oil cylinder A slows down；Work as ΔA″When < 0, servo motor band movable valve plug is moved to motor side, then is gone out
Hydraulic fluid port B oil mass reduces, and oil outlet A flow increases, and illustrates that oil cylinder A speed is slow, i.e. adjusting oil cylinder A speedup；
(6) oil cylinder B runing adjustment program: to ΔB″=lB-lB′Judged,
Work as ΔB″When > 0, servo motor band movable valve plug is moved to end cover side, then oil outlet A oil mass reduces, and fuel-displaced B flow increases
Greatly, illustrate that B cylinder speed is slow, i.e. adjusting oil cylinder B speedup；Work as ΔB″When < 0, servo motor band movable valve plug is moved to motor side, then is gone out
Hydraulic fluid port B oil mass reduces, and oil outlet A flow increases, and illustrates that oil cylinder B speed is fast, i.e. adjusting oil cylinder B slows down；
(7) data feedback: the operation angle of oil cylinder A and oil cylinder B are to setting time in encoder acquisition step (5) and (6)
After 15min, then step (4) are jumped to, carries out the real time monitoring of next round.
Claims (8)
1. a kind of servo synchronization hydraulic valve, which is characterized in that including valve body, servo motor (7) and encoder (8)；
The valve body includes valve chamber, spool (2), end cap (3), tailstock (4), oil inlet (10), oil outlet A (11) and oil outlet B
(12)；It fills around the oil outlet A (11) and oil outlet B (12) equipped with valve seat (1)；The spool (2) is set in valve chamber；
The end cap (3) and tailstock (4) are divided into valve body both ends, and the oil outlet A (11) and oil outlet B (12) are set on valve body
Portion, the oil inlet (10) are set to body base, and lead screw (5) passes through spool (2) and passes through shaft joint (6) and servo motor (7) phase
Even, the servo motor (7) is set to tailstock (4) one end；The oil outlet A (11) depends on proximal cover (3) side, the oil outlet B
(12) close to servo motor (7) side；
The encoder is set on servo motor (7).
2. servo synchronization hydraulic valve according to claim 1, which is characterized in that the valve seat (1) is rubber, plastics or gold
Belong to material.
3. servo synchronization hydraulic valve according to claim 1, which is characterized in that the oil inlet (10) is in valve seat (1)
If there are two inflow pipelines, it is connected to valve chamber.
4. servo synchronization hydraulic valve according to claim 1, which is characterized in that the lead screw (5) passes through the first sealing ring
(9) it is tightly connected with valve seat (1) and tailstock (4).
5. servo synchronization hydraulic valve according to claim 1, which is characterized in that adopted between the valve seat (1) and end cap (3)
It is tightly connected with the second sealing ring (9 ').
6. servo synchronization hydraulic valve according to claim 1, which is characterized in that the servo motor (7) passes through ring flange
It is fixed on valve body.
7. servo synchronization hydraulic valve according to claim 1, which is characterized in that the valve body and servo motor (7) are located at
In the same mounting seat.
8. servo synchronization hydraulic valve according to claim 7, which is characterized in that the valve body and servo motor (7) pass through
Shockproof foot is fixed in the mounting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821597903.2U CN208935463U (en) | 2018-09-28 | 2018-09-28 | A kind of servo synchronization hydraulic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821597903.2U CN208935463U (en) | 2018-09-28 | 2018-09-28 | A kind of servo synchronization hydraulic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208935463U true CN208935463U (en) | 2019-06-04 |
Family
ID=66722999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821597903.2U Expired - Fee Related CN208935463U (en) | 2018-09-28 | 2018-09-28 | A kind of servo synchronization hydraulic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208935463U (en) |
-
2018
- 2018-09-28 CN CN201821597903.2U patent/CN208935463U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190604 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |