CN206655855U - A kind of inverse-proportion pressure reducing valve of hydraulic coupling control - Google Patents
A kind of inverse-proportion pressure reducing valve of hydraulic coupling control Download PDFInfo
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- CN206655855U CN206655855U CN201720400930.5U CN201720400930U CN206655855U CN 206655855 U CN206655855 U CN 206655855U CN 201720400930 U CN201720400930 U CN 201720400930U CN 206655855 U CN206655855 U CN 206655855U
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Abstract
The utility model discloses a kind of inverse-proportion pressure reducing valve of hydraulic coupling control, include valve pocket, oil inlet, oil-out and drain tap are provided with valve pocket, relief pressure valve cartridge is axially equipped with valve pocket, face oil inlet is provided with fuel feed hole on relief pressure valve cartridge, and fuel feed hole is connected with the oil outlet chamber in relief pressure valve cartridge, the oil outlet chamber is connected with oil-out, oil-through hole is provided with relief pressure valve cartridge between drain tap and oil outlet chamber, damping is provided with oil-through hole, the damping is provided centrally with damping hole；The front end of valve pocket is provided with block, and the center of the block is equipped with adjusting screw, and spring is provided between adjusting screw and relief pressure valve cartridge；Control mouth is offered on valve pocket, stress inclined-plane is provided with described in face in control mouth on relief pressure valve cartridge.The utility model has the advantage of：Simple in construction, manufacturing cost is low, and it is by the control inputted to control mouth pressure, and to realize the regulation to the pressure of delivery outlet, pressure regulation is conveniently.
Description
Technical field
Pressure-reducing valve manufacturing technology field is the utility model is related to, especially a kind of inverse-proportion pressure reducing valve of hydraulic coupling control.
Background technology
More commonly used at present is level pressure output type pressure-reducing valve, can claim three-way pressure reducing valve, it can make outlet pressure basic
Keeping constant, the pressure of delivery outlet can be adjusted by adjusting screw, and the position of output pressure and adjusting screw corresponds,
Delivery outlet pressure is changeable according to the direction difference of regulation, and for this regulative mode when machine is run, regulation is not very square
Just.
It is threeway ratio electromagnetic relief pressure valve to also have one kind in addition, and it is the size by adjusting proportion electro-magnet input current
To change the size of delivery outlet pressure, delivery outlet pressure and proportion electro-magnet input current are proportional, this regulative mode
It is relatively good, but its cost is higher, it is necessary to mix electronic component.Do not have by hydraulic coupling also in the market defeated to adjust
The pressure-reducing valve of outlet pressure.
The content of the invention
Technical problem to be solved in the utility model is the present situation for prior art, there is provided it is simple in construction, it is manufactured into
This is low, a kind of pressure regulation inverse-proportion pressure reducing valve that easily hydraulic coupling controls.
Technical scheme is used by the utility model solves above-mentioned technical problem：
A kind of inverse-proportion pressure reducing valve of hydraulic coupling control, includes valve pocket, oil inlet, oil-out is provided with valve pocket and is let out
Hydraulic fluid port, relief pressure valve cartridge is axially equipped with valve pocket, face oil inlet is provided with fuel feed hole, fuel feed hole and pressure-reducing valve on relief pressure valve cartridge
The oil outlet chamber of in-core is connected, and the oil outlet chamber is connected with oil-out, is set on relief pressure valve cartridge between drain tap and oil outlet chamber
There is oil-through hole, damping is provided with oil-through hole, the damping is provided centrally with damping hole；The front end of valve pocket is provided with block, should
The center of block is equipped with adjusting screw, and spring is provided between adjusting screw and relief pressure valve cartridge；Control mouth is offered on valve pocket,
It is provided with stress inclined-plane on relief pressure valve cartridge described in face in control mouth.
The technical measures of optimization also include：
Annular lug is provided with the middle part of above-mentioned relief pressure valve cartridge, the platform being adapted with the annular lug is provided with valve pocket
Rank portion, stress inclined-plane are arranged on the stress inclined-plane.
It is provided with spring base in above-mentioned valve pocket on the inside of adjusting screw, one end of spring and the spring base offset cooperation,
The other end of spring offsets with annular lug.
Steel ball is provided with above-mentioned spring base.
Oil outlet chamber side is provided with cushion chamber in above-mentioned damping, the cushion chamber is connected with damping hole.
The periphery of above-mentioned relief pressure valve cartridge is provided with annular groove.
Stop nut is provided with the outside of above-mentioned block.
The periphery of above-mentioned valve pocket is provided with sealing ring, and the both sides of sealing ring are respectively arranged with back-up ring.
Packing ring is provided between above-mentioned block and valve pocket.
Sealing ring is provided between the inwall of the periphery of above-mentioned adjusting screw and the valve pocket.
A kind of inverse-proportion pressure reducing valve of hydraulic coupling control of the utility model, simple in construction, manufacturing cost is low, is set on valve pocket
There are oil inlet, oil-out and drain tap, relief pressure valve cartridge is axially equipped with valve pocket, and damping is provided with relief pressure valve cartridge, cover
The center of cap, which is equipped between adjusting screw adjusting screw and relief pressure valve cartridge, is provided with spring, and control mouth is further opened with valve pocket,
It is provided with stress inclined-plane on relief pressure valve cartridge described in face in control mouth；It is by the control that is inputted to control mouth pressure, to realize
Regulation to the pressure of delivery outlet, and the pressure of delivery outlet with control hydraulic coupling lifting, delivery outlet pressure reduce, both
Inversely proportional relation, regulation is very convenient, can reduce the cost of system, the size suitable for controlling pumpage.
Brief description of the drawings
Fig. 1 is sectional structure chart of the present utility model；
Fig. 2 is I portions enlarged drawing in Fig. 1；
Fig. 3 is hydraulic principle figure of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment.
It is structural representation of the present utility model as shown in Figure 1 to Figure 3,
Reference therein is：Oil inlet P, oil-out A, drain tap L, control mouth X, valve pocket 1, stage portion 1a, decompression
Valve element 2, oil outlet chamber 2a, oil-through hole 2b, stress inclined-plane 2c, fuel feed hole 21, annular lug 22, annular groove 23, damping 3, damping hole
It is 3a, cushion chamber 3b, block 4, packing ring 41, adjusting screw 5, sealing ring 51, spring 6, spring base 7, steel ball 71, stop nut 8, close
Seal 9, back-up ring 91.
As shown in Figure 1 to Figure 3,
A kind of inverse-proportion pressure reducing valve of hydraulic coupling control, includes valve pocket 1, oil inlet P, oil-out A is provided with valve pocket 1
With drain tap L, relief pressure valve cartridge 2 is axially equipped with valve pocket 1, face oil inlet P is provided with fuel feed hole 21 on relief pressure valve cartridge 2, enters
Oilhole 21 is connected with the oil outlet chamber 2a in relief pressure valve cartridge 2, and oil outlet chamber 2a is connected with oil-out A, is being let out on relief pressure valve cartridge 2
Oil-through hole 2b is provided between hydraulic fluid port L and oil outlet chamber 2a, damping 3 is provided with oil-through hole 2b, the damping 3 is provided centrally with hindering
Buddhist nun hole 3a；The front end of valve pocket 1 is provided with block 4, and the center of the block 4 is equipped with adjusting screw 5, adjusting screw 5 and pressure-reducing valve
Spring 6 is provided between core 2；Control mouth X is offered on valve pocket 1, be provided with relief pressure valve cartridge 2 described in face on control mouth X by
Power inclined-plane 2c.
In embodiment, the middle part of relief pressure valve cartridge 2 is provided with annular lug 22, is provided with valve pocket 1 and the annular lug 22
The stage portion 1a being adapted, stress inclined-plane 2c are arranged on stress inclined-plane 2c.
In embodiment, the inner side of adjusting screw 5 is provided with spring base 7, one end of spring 6 and the phase of spring base 7 in valve pocket 1
To cooperation, the other end and the annular lug 22 of spring 6 offset.
In embodiment, steel ball 71 is provided with spring base 7.
The setting of steel ball 71 makes to form sphere-contact between spring base 7 and adjusting screw 5, enables spring base 7 with steel ball
Freely swing centered on 71 centre of sphere, so that the direction of spring force all the time on the axis direction of pressure-reducing valve, is so advantageous to
Improve the accuracy of output pressure control.
In embodiment, oil outlet chamber side is provided with cushion chamber 3b in damping 3, cushion chamber 3b is connected with damping hole 3a.
In embodiment, the periphery of relief pressure valve cartridge 2 is provided with annular groove 23；The setting of annular groove 23 can effectively prevent from depressurizing
Stuck phenomenon occurs in the moving process of valve element 2.
In embodiment, the outside of block 4 is provided with stop nut 8.
Adjusting screw 5 is threadedly coupled with block 4, and depth is screwed into adjust the precompressed of spring 6 by adjust adjusting screw 5
Power, and set stop nut 8 to prevent that adjusting screw 5 from loosening, so as to ensure the accuracy of precompression setting.
In embodiment, the periphery of valve pocket 1 is provided with sealing ring 9, and the both sides of sealing ring 9 are respectively arranged with back-up ring 91.
This pressure-reducing valve is a kind of screw-in cartridge valve, is threadedly coupled with installation site, and the sealing ring 9 that its periphery is set ensure that
Sealing between pressure-reducing valve and installation site, and the setting of back-up ring 91 defines the axial location of each sealing ring 9, ensures close
The reliability of envelope.
In embodiment, packing ring 41 is provided between block 4 and valve pocket 1.
In embodiment, sealing ring 51 is provided between the inwall of the periphery of adjusting screw 5 and the valve pocket 1.Sealing ring 51
Setting ensure that the sealing of the side of adjusting screw 5 so that this pressure-reducing valve being capable of stable operation.
Operation principle：
This pressure-reducing valve is a three-way pressure reducing valve, mainly includes valve pocket 1 and relief pressure valve cartridge 2, relief pressure valve cartridge 2 can be in valve pocket 1
Interior axial movement.Oil inlet P, oil-out A and drain tap L, fuel feed hole of the oil inlet P through relief pressure valve cartridge 2 are provided with its valve pocket 1
21st, oil outlet chamber 2a and it is identical with oil-out A, between oil inlet P and drain tap L then by relief pressure valve cartridge 2 oil-through hole 2b and phase
It is logical, and damping 3 is provided with oil-through hole 2b；Be additionally provided with control mouth X on valve pocket 1, control mouth X with relief pressure valve cartridge 2 by
Power inclined-plane 2c faces are set.This pressure-reducing valve is provided with adjusting screw 5, and spring 6 is provided between adjusting screw 5 and relief pressure valve cartridge 2.
Oil-out A maximum outputs pressure is set：After turning on stop nut 8, pressure gauge, oil inlet P are connected at oil-out A
Oil-feed, the adjusting screw that turns clockwise 5, input pressure is set to be set higher than oil-out A maximum outputs pressure, then rotate counterclockwise
Adjusting screw 5, oil-out A is set to reach maximum output pressure.The depth being screwed into by adjusting adjusting screw 5 can be with easily
Adjust oil-out A maximum output pressure.
Inverse proportion Decompression Controlling：Control mouth X oil-feeds, pressure oil are acted on the stress inclined-plane 2c of relief pressure valve cartridge 2, make decompression
Valve element 2 overcomes the spring force of spring 6 to be moved to the left；In the presence of the balance to exert oneself during due to valve normal work：The spring force of spring 6
=oil-out A pressure × oil-out A pressure application surface product+control mouth X pressure × control mouth X pressure application surface product, and
In above formula, its value is certain after the spring force setting of spring 6, and oil-out A pressure application surface product and control mouth X pressure are made
With area and definite value, in order to ensure the balance of above formula power, control mouth X pressure is bigger, and oil-out A pressure is then smaller, from
And reach inverse proportion decompression purpose.
This structure of relief pressure valve is simple, and manufacturing cost is low, can be to realize by adjusting control to control mouth X input pressures
Regulation to output pressure, regulation are very convenient.
Most preferred embodiment of the present utility model has illustrated, the various change or remodeling made by those of ordinary skill in the art
All without departing from the scope of the utility model.
Claims (10)
1. a kind of inverse-proportion pressure reducing valve of hydraulic coupling control, includes valve pocket (1), described valve pocket is provided with oil inlet on (1)
(P), oil-out (A) and drain tap (L), it is characterized in that：Relief pressure valve cartridge (2) is axially equipped with described valve pocket (1), it is described
Face oil inlet (P) is provided with fuel feed hole (21) on relief pressure valve cartridge (2), described fuel feed hole (21) with relief pressure valve cartridge (2)
Oil outlet chamber (2a) is connected, and the oil outlet chamber (2a) is connected with oil-out (A), at drain tap (L) on described relief pressure valve cartridge (2)
Oil-through hole (2b) is provided between oil outlet chamber (2a), damping (3) is provided with described oil-through hole (2b), the damping (3)
It is provided centrally with damping hole (3a)；The front end of described valve pocket (1) is provided with block (4), and the center of the block (4) is equipped with tune
Screw (5) is saved, spring (6) is provided between described adjusting screw (5) and relief pressure valve cartridge (2)；Opened up on described valve pocket (1)
There is control mouth (X), stress inclined-plane (2c) is provided with described in face in control mouth (X) on described relief pressure valve cartridge (2).
2. a kind of inverse-proportion pressure reducing valve of hydraulic coupling control according to claim 1, it is characterized in that：Described relief pressure valve cartridge
(2) annular lug (22) is provided with the middle part of, the step being adapted with the annular lug (22) is provided with described valve pocket (1)
Portion (1a), described stress inclined-plane (2c) are arranged on the stress inclined-plane (2c).
3. a kind of inverse-proportion pressure reducing valve of hydraulic coupling control according to claim 2, it is characterized in that：Described valve pocket (1)
It is provided with spring base (7) on the inside of inherent adjusting screw (5), one end of described spring (6) and the spring base (7) offset cooperation,
The other end of described spring (6) offsets with annular lug (22).
4. a kind of inverse-proportion pressure reducing valve of hydraulic coupling control according to claim 3, it is characterized in that：Described spring base
(7) steel ball (71) is provided with.
5. a kind of inverse-proportion pressure reducing valve of hydraulic coupling control according to claim 4, it is characterized in that：Described damping (3)
On cushion chamber (3b) is provided with oil outlet chamber side, the cushion chamber (3b) is connected with damping hole (3a).
6. a kind of inverse-proportion pressure reducing valve of hydraulic coupling control according to claim 5, it is characterized in that：Described relief pressure valve cartridge
(2) periphery is provided with annular groove (23).
7. a kind of inverse-proportion pressure reducing valve of hydraulic coupling control according to claim 6, it is characterized in that：Described block (4)
Outside be provided with stop nut (8).
8. a kind of inverse-proportion pressure reducing valve of hydraulic coupling control according to claim 7, it is characterized in that：Described valve pocket (1)
Periphery be provided with sealing ring (9), the both sides of described sealing ring (9) are respectively arranged with back-up ring (91).
9. a kind of inverse-proportion pressure reducing valve of hydraulic coupling control according to claim 8, it is characterized in that：Described block (4)
Packing ring (41) is provided between valve pocket (1).
10. a kind of inverse-proportion pressure reducing valve of hydraulic coupling control according to claim 9, it is characterized in that：Described regulation spiral shell
Follow closely and be provided with sealing ring (51) between the periphery of (5) and the inwall of the valve pocket (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720400930.5U CN206655855U (en) | 2017-04-17 | 2017-04-17 | A kind of inverse-proportion pressure reducing valve of hydraulic coupling control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720400930.5U CN206655855U (en) | 2017-04-17 | 2017-04-17 | A kind of inverse-proportion pressure reducing valve of hydraulic coupling control |
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| Publication Number | Publication Date |
|---|---|
| CN206655855U true CN206655855U (en) | 2017-11-21 |
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ID=60318391
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720400930.5U Active CN206655855U (en) | 2017-04-17 | 2017-04-17 | A kind of inverse-proportion pressure reducing valve of hydraulic coupling control |
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| CN (1) | CN206655855U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107044461B (en) * | 2017-04-17 | 2019-02-12 | 宁波江北宇洲液压设备厂 | A kind of inverse-proportion pressure reducing valve of hydraulic coupling control |
-
2017
- 2017-04-17 CN CN201720400930.5U patent/CN206655855U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107044461B (en) * | 2017-04-17 | 2019-02-12 | 宁波江北宇洲液压设备厂 | A kind of inverse-proportion pressure reducing valve of hydraulic coupling control |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Jiangbei District in Zhejiang province 315021 Hing Ningbo Yonglu No. 98 Patentee after: Ningbo Yuzhou Hydraulic Equipment Co.,Ltd. Address before: Jiangbei District in Zhejiang province 315021 Hing Ningbo Yonglu No. 98 Patentee before: NINGBO JIANGBEI YUZHOU HYDRAULIC EQUIPMENT FACTORY |
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| CP01 | Change in the name or title of a patent holder |