CN110005652A - Interior integrated small flow multi-function control valve - Google Patents
Interior integrated small flow multi-function control valve Download PDFInfo
- Publication number
- CN110005652A CN110005652A CN201811580146.2A CN201811580146A CN110005652A CN 110005652 A CN110005652 A CN 110005652A CN 201811580146 A CN201811580146 A CN 201811580146A CN 110005652 A CN110005652 A CN 110005652A
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- China
- Prior art keywords
- valve
- hydraulic control
- chamber
- valve body
- port
- 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
-
- 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
- F15B13/027—Check valves
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
Interior integrated small flow multi-function control valve, including valve body, oil inlet, oil return opening and overflow valve, it further include being mounted on five three-position four-way electromagnetic directional valves being arranged in parallel between each other on valve body, five the first external hydraulic fluid ports being located on valve body, five the second external hydraulic fluid ports, two built-in dual hydraulic control one-way valves being located in the valve body and being located on the valve body and the off-load solenoid valve of overflow valve parallel connection, two built-in dual hydraulic control one-way valves are connected with two three-position four-way electromagnetic directional valves respectively；Electromagnetic valve oil return mouth, the first actuator port and the second actuator port that there is the three-position four-way electromagnetic directional valve solenoid valve oil inlet being connected to the oil inlet to be connected to the oil return opening, and the three-position four-way electromagnetic directional valve, when being in middle position, the electromagnetic valve oil return mouth, the first actuator port and the second actuator port are interconnected.The present invention its integration degree is high, it is small in size, dismantle, install and repair it is very convenient.
Description
Technical field
It is the present invention relates to technical field of agricultural machinery, in particular to a kind of more for integrating small flow in farm machinery
Function control valve.
Background technique
With the continuous improvement of scientific and technological level, the life of agricultural is not only greatly improved in the large-scale application of farm machinery
Produce efficiency, also change the situation in previous agricultural production based on manpower, existing agricultural machinery when being worked,
Controlling each mechanism is carried out by oil cylinder, because oil cylinder has sufficiently large power relative to cylinder, can satisfy agricultural
Mechanical demand, and the movement for controlling oil cylinder needs corresponding valve, these valves are very more, and not only occupied space is big for dispersion installation,
And disassembly, installation and maintenance are inconvenient.
Summary of the invention
Technical purpose of the invention is overcome the deficiencies in the prior art place, provides and integrates small flow multi-function in one kind
Control valve solves problems of the prior art, integration degree is high, small in size, low noise, disassembly, installation and
It repairs very convenient.
Above-mentioned technical purpose of the invention has the technical scheme that interior integrated small flow multi-function
Control valve further includes being mounted on the valve body including valve body, the oil inlet being located on the valve body, oil return opening and overflow valve
Upper five three-position four-way electromagnetic directional valves being arranged in parallel between each other, five the first external hydraulic fluid ports being located on the valve body,
Five the second external hydraulic fluid ports, two built-in dual hydraulic control one-way valves being located in the valve body and be located on the valve body and
The off-load solenoid valve of the overflow valve parallel connection, two built-in dual hydraulic control one-way valves respectively with two 3-position 4-way electromagnetism
Reversal valve connection；The three-position four-way electromagnetic directional valve has the solenoid valve oil inlet being connected to the oil inlet and described time
Electromagnetic valve oil return mouth, the first actuator port and the second actuator port of hydraulic fluid port connection, and the three-position four-way electromagnetic directional valve
When in middle position, the electromagnetic valve oil return mouth, the first actuator port and the second actuator port are interconnected.
Preferably, the off-load solenoid valve is 2/2-way solenoid valve.
Preferably, the built-in dual hydraulic control one-way valve includes the hydraulic control mandril chamber being located in the valve body, is located at institute
State the hydraulic control piston in hydraulic control mandril chamber, the mandril that is located at hydraulic control piston both ends, be located at the hydraulic control mandril chamber both ends and
The hydraulic control valve chamber that communicates with the hydraulic control mandril chamber, is located at the pilot operated valve device at the sealing plug for being located at hydraulic control valve chamber end
Hydraulic control valve seat in chamber, the valve port being located on the hydraulic control valve seat and spool chamber are located at the spool chamber and neutralize the valve port and match
The hydraulic control spool of conjunction and the compressed spring being located between the hydraulic control spool and the sealing plug.
Preferably, the hydraulic control spool is equipped with the conical section that lateral springs chamber and the valve port cooperate and described
The cylindrical section of conical section connection is connect with the cylindrical section and the guide section of the spool chamber clearance fit and described in being located at
The radial communication hole being connected on cylindrical section with the lateral springs chamber.
Preferably, the diffusion counterbore that the spool chamber bottom surface is equipped with and the valve port communicates.
Preferably, being equipped with conical flow guiding diffuser between the mandril and the hydraulic control piston, the conical flow guiding expands
The diameter for dissipating section becomes larger with close to the hydraulic control piston.
In conclusion the invention has the following advantages:
The present invention its integration degree is high, it is small in size, dismantle, install and repair it is very convenient.
Detailed description of the invention
Fig. 1 is main view of the invention；
Fig. 2 is the P of Fig. 1 of the present invention to schematic diagram；
Fig. 3 is hydraulic schematic diagram of the invention；
Fig. 4 is the A-A cross-sectional view in Fig. 1 of the present invention；
Fig. 5 is the B-B cross-sectional view in Fig. 1 of the present invention；
Fig. 6 is hydraulic control spool and hydraulic control valve seat cooperation figure in the present invention；
Fig. 7 is the structure chart of overflow valve in the present invention；
Fig. 8 is partial enlarged view at the A in Fig. 7 in the present invention.
Specific embodiment
Below in conjunction with attached drawing, the invention will be further described.
Embodiment: as shown in figures 1-8, interior integrated small flow multi-function control valve, including valve body 1, it is located at the valve body 1
On oil inlet 101, oil return opening 102 and overflow valve 2, oil inlet connects with external oil pump, provide hydraulic oil by oil pump,
Oil return opening is connected to external fuel tank, and the hydraulic oil after work is returned to fuel tank and carries out continuing cycling through work；Overflow valve is used to control
The system pressure for making entire valve guarantees the safety of whole system；It further include being mounted on the valve body 1 five between each other simultaneously
Outside the three-position four-way electromagnetic directional valve 3 for joining setting, five the first external hydraulic fluid ports 103, five second being located on the valve body 1
It oil-collecting hole 104, two built-in dual hydraulic control one-way valves 4 being located in the valve body 1 and is located on the valve body 1 and described
The off-load solenoid valve 5 in parallel of overflow valve 2, two built-in dual hydraulic control one-way valves 4 are changed with two 3-position 4-way electromagnetism respectively
It is connected to valve 3；The quantity of three-position four-way electromagnetic directional valve 3 is five, is arranged in parallel, is screwed on valve body 1, outside five first
103, five corresponding five three-position four-way electromagnetic directional valves 3 of the second external hydraulic fluid port 104 of oil-collecting hole, each 3-position 4-way electromagnetism
Reversal valve 3 corresponds to 103, second external hydraulic fluid ports 104 of a first external hydraulic fluid port, and the first external hydraulic fluid port 103, second is external
Hydraulic fluid port 104 is connected with external oil cylinder；The three-position four-way electromagnetic directional valve 3 has the solenoid valve being connected to the oil inlet 101
Electromagnetic valve oil return mouth T, the first actuator port A and the second actuator port B that oil inlet P is connected to the oil return opening 102, and
When the three-position four-way electromagnetic directional valve 3 is in middle position, the electromagnetic valve oil return mouth T, the first actuator port A and the second work
Make hydraulic fluid port B to be interconnected, so that entire valve is when idle, what is come from oil inlet is hydraulic for the effect of off-load solenoid valve
Oil directly returns to hydraulic fluid port by unloading valve, and the operating pressure of system is very low at this time, is not only able to reduce noise, can also save
The energy extends the service life of entire valve.
Further, the off-load solenoid valve 5 is 2/2-way solenoid valve, which is Single electromagnet,
When electromagnet is cold, it is in connected state, when electromagnet is powered, is in close state.
In the present embodiment, the built-in dual hydraulic control one-way valve 4 includes the hydraulic control mandril being located in the valve body 1
Chamber 401, the hydraulic control piston 402 being located in the hydraulic control mandril chamber 401, the mandril 403 for being located at 402 both ends of hydraulic control piston,
Positioned at 401 both ends of hydraulic control mandril chamber and communicated with the hydraulic control mandril chamber 401 hydraulic control valve chamber 404, be located at the hydraulic control
The sealing plug 405 of 404 end of valve chamber, is located at the hydraulic control valve seat at the hydraulic control valve seat 406 being located in the hydraulic control valve chamber 404
Valve port 407 and spool chamber 408 on 406 are located at the spool chamber 408 and neutralize the hydraulic control spool 409 that the valve port 407 cooperates
And it is located at the compressed spring 410 between the hydraulic control spool 409 and the sealing plug 405；Hydraulic control spool is in compression bullet
It is withstood on valve port under the action of spring, the hydraulic oil that the first actuator port A, the second actuator port B come in can push hydraulic control living
Plug 402 slides in hydraulic control mandril chamber 401, and then realizes and open hydraulic control spool by mandril, realizes passing through for hydraulic oil, moreover,
In present embodiment, hydraulic control spool is arranged in spool chamber 408, can guarantee the concentricity with valve port, reduce impact and
Noise.
Further；The hydraulic control spool 409 is equipped with the taper that lateral springs chamber 4091 and the valve port 407 cooperate
Cylindrical section 4093 that section 4092 and the conical section 4092 connect is connect with the cylindrical section 4093 and the spool chamber 408
It the guide section 4094 of clearance fit and is located at the radial direction being connected on the cylindrical section 4093 with the lateral springs chamber 4091 and connects
Through-hole 4095, it is such, it can preferably realize reduction impact and reduce noise；Further；408 bottom surface of spool chamber
Equipped with the diffusion counterbore 411 communicated with the valve port 407.
Further；Conical flow guiding diffuser 412 is equipped between the mandril 403 and the hydraulic control piston 402, it is described
The diameter of conical flow guiding diffuser 412 becomes larger with close to the hydraulic control piston 402.
Further, in order to reduce by the uttering long and high-pitched sounds of 2 operation of overflow valve, impact noise, because multiple solenoid directional control valves
The impact that operation generates, have utter long and high-pitched sounds, impact noise, so, overflow valve 2 in present embodiment includes being located at valve body
In overflow valve installation cavity 201, be located in the overflow valve installation cavity 201 overflow valve port 202, be located at overflow valve peace
It behave affectedly in 201 and the overflow spools 203 of the overflow valve port 202 cooperation, is located at overflowing for 201 end of overflow valve installation cavity
Stream valve pocket 204, the spring cavity 205 being located in the overflow valve pocket 204, the spring base being located in the spring cavity 205
206, the spring 207 that is located between the overflow spool 203 and the spring base 206 and it is screwed onto the overflow valve pocket
Overflow adjusting screw 208 on 204 is bolted with fastening nut and external thread sleeve, the overflow spool in overflow adjusting screw
203 include the conical section 2031 cooperated with the overflow valve port 202, the blocking guide ring for being located at described 2031 one end of conical section
2032, the connection for being located at the spring guide pillar 2033 for stopping 2032 end of guide ring, being located at 2031 other end of conical section
Cylinder 2034 and the guide cylinder 2035 connected with the connecting cylinder 2034；205 bottom surface of overflow spring cavity is equipped with
With the guiding stable cavity 2051 of 2035 clearance fit of guide cylinder；Such setting, so that overflow valve is carrying out overflow
When, by guide cylinder and guide ring is stopped to carry out double guiding, guarantees the stability of its overflow spool, avoid and utter long and high-pitched sounds
Sound, further；The end of the overflow valve port 202 is equipped with tapered guide surface 2038, and the conical section 2031 is equipped with taper
Guide face 2036 and the extension conical surface 2037 connected with the conical flow guiding face, the extension conical surface and blocking guiding
Ring connection, and the extension conical surface 2037, conical flow guiding face 2036 are located on same two sections by the two axial line
The linear distance of point is equal, in this way, hydraulic oil when passing through, is impacted before this in conical flow guiding face 2036, then impacts again
On the extension conical surface 2037, especially tapered guide surface 2038, conical flow guiding face 2036 form equidistant cavity.
Claims (6)
1. small flow multi-function control valve is integrated in, including valve body (1), the oil inlet (101) being located on the valve body (1), is returned
Hydraulic fluid port (102) and overflow valve (2), it is characterised in that: further include being mounted on the valve body (1) upper five mutual parallel connections to set
The three-position four-way electromagnetic directional valve (3) set, five the first external hydraulic fluid ports (103) being located on the valve body (1), outside five second
It oil-collecting hole (104), the built-in dual hydraulic control one-way valve (4) of two be located in the valve body (1) and is located on the valve body (1)
With the off-load solenoid valve (5) of the overflow valve (2) parallel connection, two built-in dual hydraulic control one-way valves (4) respectively with two three
Position four-way electromagnetic reversing valve (3) connects；The three-position four-way electromagnetic directional valve (3), which has, to be connected to the oil inlet (101)
Electromagnetic valve oil return mouth (T) that solenoid valve oil inlet (P) is connected to the oil return opening (102), the first actuator port (A) and
Two actuator ports (B), and when the three-position four-way electromagnetic directional valve (3) is in middle position, the electromagnetic valve oil return mouth (T), first
Actuator port (A) and the second actuator port (B) are interconnected.
2. interior integrated small flow multi-function control valve according to claim 1, it is characterised in that: the off-load solenoid valve
It (5) is 2/2-way solenoid valve.
3. interior integrated small flow multi-function control valve according to claim 1 or 2, it is characterised in that: described built-in double
Hydraulic control one-way valve (4) includes the hydraulic control mandril chamber (401) being located in the valve body (1), is located in the hydraulic control mandril chamber (401)
Hydraulic control piston (402), be located at hydraulic control piston (402) both ends mandril (403), be located at the hydraulic control mandril chamber (401)
Both ends and the hydraulic control valve chamber (404) communicated with the hydraulic control mandril chamber (401) are located at the close of hydraulic control valve chamber (404) end
Envelope plug screw (405), is located on the hydraulic control valve seat (406) the hydraulic control valve seat (406) being located in the hydraulic control valve chamber (404)
Valve port (407) and spool chamber (408) are located at the hydraulic control spool that the spool chamber (408) neutralize valve port (407) cooperation
(409) and the compressed spring (410) that is located between the hydraulic control spool (409) and the sealing plug (405).
4. interior integrated small flow multi-function control valve according to claim 3, it is characterised in that: the hydraulic control spool
(409) conical section (4092) and the conical section of lateral springs chamber (4091) and the valve port (407) cooperation are equipped with
(4092) cylindrical section (4093) that connects is connect with the cylindrical section (4093) and the spool chamber (408) clearance fit is led
To section (4094) and it is located at the radial communication hole being connected on the cylindrical section (4093) with the lateral springs chamber (4091)
(4095)。
5. interior integrated small flow multi-function control valve according to claim 3, it is characterised in that: the spool chamber (408)
The diffusion counterbore (411) that bottom surface is equipped with and the valve port (407) communicate.
6. interior integrated small flow multi-function control valve according to claim 3, it is characterised in that: the mandril (403) and
Be equipped with conical flow guiding diffuser (412) between the hydraulic control piston (402), the diameter of the conical flow guiding diffuser (412) with
Become larger close to the hydraulic control piston (402).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811580146.2A CN110005652A (en) | 2018-12-24 | 2018-12-24 | Interior integrated small flow multi-function control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811580146.2A CN110005652A (en) | 2018-12-24 | 2018-12-24 | Interior integrated small flow multi-function control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110005652A true CN110005652A (en) | 2019-07-12 |
Family
ID=67165200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811580146.2A Withdrawn CN110005652A (en) | 2018-12-24 | 2018-12-24 | Interior integrated small flow multi-function control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110005652A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848195A (en) * | 2019-11-22 | 2020-02-28 | 无锡气动技术研究所有限公司 | Integrated plate type electromagnetic valve structure for valve terminal |
| CN111963510A (en) * | 2020-08-31 | 2020-11-20 | 潍柴动力股份有限公司 | Control system and harvester with same |
-
2018
- 2018-12-24 CN CN201811580146.2A patent/CN110005652A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848195A (en) * | 2019-11-22 | 2020-02-28 | 无锡气动技术研究所有限公司 | Integrated plate type electromagnetic valve structure for valve terminal |
| CN110848195B (en) * | 2019-11-22 | 2021-11-09 | 无锡气动技术研究所有限公司 | Integrated plate type electromagnetic valve structure for valve terminal |
| CN111963510A (en) * | 2020-08-31 | 2020-11-20 | 潍柴动力股份有限公司 | Control system and harvester with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190712 |