CN104533861B - A kind of switching valve for static test - Google Patents
A kind of switching valve for static test Download PDFInfo
- Publication number
- CN104533861B CN104533861B CN201410738483.5A CN201410738483A CN104533861B CN 104533861 B CN104533861 B CN 104533861B CN 201410738483 A CN201410738483 A CN 201410738483A CN 104533861 B CN104533861 B CN 104533861B
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- CN
- China
- Prior art keywords
- hydraulic fluid
- fluid port
- spring
- switching valve
- spool
- 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.)
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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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/022—Flow-dividers; Priority valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
Abstract
The invention belongs to Hydraulic Field, relate to a kind of switching valve, conversion testing oil circuit when servo valve static test, be mainly used in the hydraulic system of servo valve static test stand.Including left end cap, left spring seat, left spring, left throttle orifice, left top, spool, valve pocket, housing, right throttle orifice, right spring base top, right, right end cap, right spring, top plug, regulation screw, locking nut；Valve pocket is placed in housing.The present invention, by controlling the switching of oil, can conveniently carry out the tests such as the flow of servo valve, pressure, internal hemorrhage due to trauma characteristic；And simple in construction, reliability are high.Spool is provided with balancing slit, prevents spool clamping stagnation, it is ensured that spool is active in one's movements.
Description
Technical field
The invention belongs to Hydraulic Field, relate to a kind of switching valve, change when electrohydraulic servo valve static test
Test oil circuit, is mainly used in the hydraulic system of servo valve static test stand.
Background technology
Servo valve directly determines the characteristic of control system as the core component of servo-control system, its performance,
The factory inspection and acceptance of every servo valve and maintenance are required for servo valve static test stand to test its performance.
At present, servo valve static test stand carries out during the test such as the flow of servo valve, pressure, internal hemorrhage due to trauma characteristic one
As use multiple stop valve manual switching, test is wasted time and energy；Or use common reversal valve on the market, although
Can be with automation mechanized operation, but owing to common reversal valve exists internal leakage, test result application condition is big；Due to
The hydraulic valve used is many, and testing stand failure-frequency is higher.
Summary of the invention
The purpose of the present invention: in order to overcome the deficiencies in the prior art, design one has translation function
Electrohydraulic servo valve static test switching valve.
Technical scheme: a kind of switching valve for static test include left end cap 1, left spring seat 2,
Left spring 3, left throttle orifice 4, left top 5, spool 6, valve pocket 7, housing 8, right throttle orifice 9, You Ding
Point 10, right spring base 11, right end cap 12, right spring 13, top plug 14, regulation screw 15, locking nut
16；Valve pocket 7 is placed in housing 8；Spool 6 is placed in valve pocket 7.
Controlling oil and enter static test switching valve through left throttle orifice 4, spool 6 overcomes the spring force of right spring 13,
Spool 6 moves right, and the second hydraulic fluid port 18 connects with the 8th hydraulic fluid port 24, the 3rd hydraulic fluid port 19 and the 4th hydraulic fluid port 20
Connection, the 5th hydraulic fluid port 21 connects with the 7th hydraulic fluid port 23, now can carry out the discharge characteristic test of servo valve；
Controlling oil and enter static test switching valve through left throttle orifice 9, spool 6 overcomes the spring force of left spring 3, valve
Core 6 is to left movement, and the second hydraulic fluid port 18 blocks with the 8th hydraulic fluid port 24, the 3rd hydraulic fluid port 19 and the 4th hydraulic fluid port 20
Connection, the 5th hydraulic fluid port 21 blocks with the 7th hydraulic fluid port 23, now can carry out the internal hemorrhage due to trauma characteristic test of servo valve；
When not controlling oil, spool 6 return under the effect of left spring 3 and right spring 13 in position, the 3rd hydraulic fluid port
19 connect with the 8th hydraulic fluid port 24, and the 4th hydraulic fluid port 20 connects with the 7th hydraulic fluid port 23, the second hydraulic fluid port 18 and the 5th
Hydraulic fluid port 21 is all cut off, and now can carry out the pressure characteristic test of servo valve.
Beneficial effects of the present invention: a kind of switching valve for static test of the present invention, by controlling turning of oil
Change, can conveniently carry out the tests such as the flow of servo valve, pressure, internal hemorrhage due to trauma characteristic.Present configuration is simple, can
High by property.Spool is provided with balancing slit, prevents spool clamping stagnation, it is ensured that spool is active in one's movements.
Accompanying drawing illustrates:
Fig. 1 is present configuration generalized section；
Fig. 2 is present configuration top view；
Wherein, 1: left end cap, 2: left spring seat, 3: left spring, 4: left throttle orifice, 5: left top,
6: spool, 7: valve pocket, 8: housing, 9: right throttle orifice, 10: right top, 11: right spring base,
12: right end cap, 13: right spring, 14: top plug, 15: regulation screw, 16: locking nut, 17: the
One hydraulic fluid port, 18: the second hydraulic fluid ports, 19: the three hydraulic fluid ports, 20: the four hydraulic fluid ports, 21: the five hydraulic fluid ports, 22:
6th hydraulic fluid port, 23: the seven hydraulic fluid ports, 24: the eight hydraulic fluid ports.
Detailed description of the invention
Below in conjunction with Figure of description and embodiment, the present invention is described in further detail.
The switching valve for static test that specific embodiment is described include left end cap 1, left spring seat 2,
Left spring 3, left throttle orifice 4, left top 5, spool 6, valve pocket 7, housing 8, right throttle orifice 9,
Right top 10, right spring base 11, right end cap 12, right spring 13, top plug 14, regulation screw 15,
Locking nut 16；Valve pocket 7 is placed in housing 8；Spool 6 is placed in valve pocket 7；Valve body includes first
Hydraulic fluid port the 17, second hydraulic fluid port the 18, the 3rd hydraulic fluid port the 19, the 4th hydraulic fluid port the 20, the 5th hydraulic fluid port the 21, the 6th hydraulic fluid port 22,
7th hydraulic fluid port the 23, the 8th hydraulic fluid port 24, wherein, the first hydraulic fluid port 17 and the 6th hydraulic fluid port 22 are for controlling mouth；Work
Time, when only the first hydraulic fluid port 17 has hydraulic oil, the second hydraulic fluid port 18 connects with the 8th hydraulic fluid port 24, the 3rd oil
Mouth 19 connects with the 4th hydraulic fluid port 20, and the 5th hydraulic fluid port 21 connects with the 7th hydraulic fluid port 23, the 6th hydraulic fluid port 22 and oil
Case connects；When only the 6th hydraulic fluid port 22 has hydraulic oil, the second hydraulic fluid port 18 blocks with the 8th hydraulic fluid port 24, the
Three hydraulic fluid ports 19 connect with the 4th hydraulic fluid port 20, and the 5th hydraulic fluid port 21 blocks with the 7th hydraulic fluid port 23, the first hydraulic fluid port 17
Connect with fuel tank；When the first hydraulic fluid port 17 and the 6th hydraulic fluid port 22 are all without hydraulic oil, the 3rd hydraulic fluid port 19 and the 8th
Hydraulic fluid port 24 connects, and the 4th hydraulic fluid port 20 connects with the 7th hydraulic fluid port 23, and the second hydraulic fluid port 18 is equal with the 5th hydraulic fluid port 21
It is cut off.
It is more specifically: the first described hydraulic fluid port the 17, the 3rd hydraulic fluid port 19 and the 5th hydraulic fluid port 21 are arranged at described
The top of switching valve, the second hydraulic fluid port the 18, the 4th hydraulic fluid port 20 and the 6th hydraulic fluid port 22 are arranged at described switching valve
Bottom, the 7th hydraulic fluid port 23 and the 8th hydraulic fluid port 24 are arranged at valve body homonymy.
It is more specifically: described switching valve includes left throttle orifice 4 and right throttle orifice 9, and left throttle orifice 4
It is pressed in housing 8 with right throttle orifice 9.
It is more specifically: the spring force of left spring 3 acts on spool 6 through left spring seat 2, a left side top 5
On left side；The spring force of right spring 13 is through right spring base 11, right top 10 right sides acting on spool 6
On end face.
It is more specifically: right spring 13 is arranged on inside top plug 14, regulates right bullet by regulation screw 15
The decrement of spring 13.
It is more specifically: described switching valve is used for testing electrohydraulic servo valve.Control oil to watch through the entrance of left throttle orifice 4
Taking valve static test switching valve, spool 6 overcomes the spring force of right spring 13, and spool 6 moves right, and second
Hydraulic fluid port 18 connects with the 8th hydraulic fluid port 24, and the 3rd hydraulic fluid port 19 connects with the 4th hydraulic fluid port 20, the 5th hydraulic fluid port 21 with
7th hydraulic fluid port 23 connects, and now can carry out the discharge characteristic test of servo valve；Control oil through left throttle orifice 9
Enter servo valve static test switching valve, spool 6 overcomes the spring force of left spring 3, spool 6 to left movement,
Second hydraulic fluid port 18 blocks with the 8th hydraulic fluid port 24, and the 3rd hydraulic fluid port 19 connects with the 4th hydraulic fluid port 20, the 5th hydraulic fluid port
21 block with the 7th hydraulic fluid port 23, now can carry out the internal hemorrhage due to trauma characteristic test of servo valve；When not controlling oil,
Spool 6 return under the effect of left spring 3 and right spring 13 in position, the 3rd hydraulic fluid port 19 and the 8th hydraulic fluid port 24
Connection, the 4th hydraulic fluid port 20 connects with the 7th hydraulic fluid port 23, and the second hydraulic fluid port 18 is all cut off with the 5th hydraulic fluid port 21,
Now can carry out the pressure characteristic test of servo valve.
Claims (6)
1. the switching valve for static test, it is characterised in that: include left end cap (1), left spring seat
(2), left spring (3), left throttle orifice (4), left top (5), spool (6), valve pocket (7), housing
(8), right throttle orifice (9), right top (10), right spring base (11), right end cap (12), right spring (13),
Top plug (14), regulation screw (15), locking nut (16)；Valve pocket (7) is placed in housing (8)；
Spool (6) is placed in valve pocket (7)；Valve body (8) include the first hydraulic fluid port (17), the second hydraulic fluid port (18),
3rd hydraulic fluid port (19), the 4th hydraulic fluid port (20), the 5th hydraulic fluid port (21), the 6th hydraulic fluid port (22), the 7th hydraulic fluid port
(23), the 8th hydraulic fluid port (24), wherein, the first hydraulic fluid port (17) and the 6th hydraulic fluid port (22) are for controlling mouth；
During work, when only the first hydraulic fluid port (17) has hydraulic oil, the second hydraulic fluid port (18) and the 8th hydraulic fluid port (24)
Connection, the 3rd hydraulic fluid port (19) connects with the 4th hydraulic fluid port (20), the 5th hydraulic fluid port (21) and the 7th hydraulic fluid port (23)
Connection, the 6th hydraulic fluid port (22) connects with fuel tank；When only the 6th hydraulic fluid port (22) has hydraulic oil, second
Hydraulic fluid port (18) blocks with the 8th hydraulic fluid port (24), and the 3rd hydraulic fluid port (19) connects with the 4th hydraulic fluid port (20),
5th hydraulic fluid port (21) blocks with the 7th hydraulic fluid port (23), and the first hydraulic fluid port (17) connects with fuel tank；When first
When hydraulic fluid port (17) and the 6th hydraulic fluid port (22) are all without hydraulic oil, the 3rd hydraulic fluid port (19) and the 8th hydraulic fluid port (24)
Connection, the 4th hydraulic fluid port (20) connects with the 7th hydraulic fluid port (23), the second hydraulic fluid port (18) and the 5th hydraulic fluid port (21)
All it is cut off.
Switching valve the most according to claim 1, it is characterised in that: described the first hydraulic fluid port (17),
3rd hydraulic fluid port (19) and the 5th hydraulic fluid port (21) are arranged at the top of described switching valve, the second hydraulic fluid port (18),
4th hydraulic fluid port (20) and the 6th hydraulic fluid port (22) are arranged at the bottom of described switching valve, the 7th hydraulic fluid port (23)
It is arranged at valve body homonymy with the 8th hydraulic fluid port (24).
Switching valve the most according to claim 1 and 2, it is characterised in that: described switching valve includes a left side
Throttle orifice (4) and right throttle orifice (9), and left throttle orifice (4) is pressed in housing (8) with right throttle orifice (9)
In.
Switching valve the most according to claim 3, it is characterised in that: the spring force warp of left spring (3)
Left spring seat (2), left top (5) act on the left side of spool (6)；The bullet of right spring (13)
Spring force acts on the right side of spool (6) through right spring base (11), right top (10).
Switching valve the most according to claim 4, it is characterised in that: right spring (13) is arranged on top
Plug (14) the inside, regulates the decrement of right spring (13) by regulation screw (15).
Switching valve the most according to claim 5, it is characterised in that: described switching valve is used for testing electricity
Hydraulic servo.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410738483.5A CN104533861B (en) | 2014-12-05 | 2014-12-05 | A kind of switching valve for static test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410738483.5A CN104533861B (en) | 2014-12-05 | 2014-12-05 | A kind of switching valve for static test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104533861A CN104533861A (en) | 2015-04-22 |
| CN104533861B true CN104533861B (en) | 2016-08-24 |
Family
ID=52849449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410738483.5A Active CN104533861B (en) | 2014-12-05 | 2014-12-05 | A kind of switching valve for static test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104533861B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7028760B2 (en) * | 2018-12-28 | 2022-03-02 | Ckd株式会社 | Spool valve |
| CN112664510B (en) * | 2020-11-27 | 2022-12-09 | 北京精密机电控制设备研究所 | Pre-stage performance integration testing device for offset jet servo valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3789736A (en) * | 1970-12-11 | 1974-02-05 | Dowty Boulton Paul Ltd | Multiple hydraulic actuator |
| US3826090A (en) * | 1973-07-25 | 1974-07-30 | Deere & Co | Variable pressure hydraulic system |
| CN1294267A (en) * | 1999-11-01 | 2001-05-09 | 卜劲松 | 3-position 4-way centralizing block for stabilizing hydraulic pressure |
| CN2913704Y (en) * | 2006-03-09 | 2007-06-20 | 隋宝臣 | Diverter valve |
| CN2924107Y (en) * | 2006-03-27 | 2007-07-18 | 泸州市江阳区长江液压配件总厂 | Oil-circuit converter |
| CN202900822U (en) * | 2012-10-12 | 2013-04-24 | 浙江交通职业技术学院 | Dual-redundancy three-position four-way directional control valve |
-
2014
- 2014-12-05 CN CN201410738483.5A patent/CN104533861B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3789736A (en) * | 1970-12-11 | 1974-02-05 | Dowty Boulton Paul Ltd | Multiple hydraulic actuator |
| US3826090A (en) * | 1973-07-25 | 1974-07-30 | Deere & Co | Variable pressure hydraulic system |
| CN1294267A (en) * | 1999-11-01 | 2001-05-09 | 卜劲松 | 3-position 4-way centralizing block for stabilizing hydraulic pressure |
| CN2913704Y (en) * | 2006-03-09 | 2007-06-20 | 隋宝臣 | Diverter valve |
| CN2924107Y (en) * | 2006-03-27 | 2007-07-18 | 泸州市江阳区长江液压配件总厂 | Oil-circuit converter |
| CN202900822U (en) * | 2012-10-12 | 2013-04-24 | 浙江交通职业技术学院 | Dual-redundancy three-position four-way directional control valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104533861A (en) | 2015-04-22 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |