CN203948754U - A kind of two-way hydraulic cartridge valve open in usual - Google Patents

A kind of two-way hydraulic cartridge valve open in usual Download PDF

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Publication number
CN203948754U
CN203948754U CN201420395405.5U CN201420395405U CN203948754U CN 203948754 U CN203948754 U CN 203948754U CN 201420395405 U CN201420395405 U CN 201420395405U CN 203948754 U CN203948754 U CN 203948754U
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China
Prior art keywords
spool
valve
gland
fixing rod
way hydraulic
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CN201420395405.5U
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Chinese (zh)
Inventor
姜洪
马海舟
杨华进
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Shanghai Sheng Bang Hydraulic Pressure Co Ltd
Sunbun Group Co Ltd
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Shanghai Sheng Bang Hydraulic Pressure Co Ltd
Sunbun Group Co Ltd
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Abstract

A kind of two-way hydraulic cartridge valve open in usual.Having solved existing cartridge valve is normally close valve, and spool is opened poor and spool if having time and had the instantaneous problem of impelling oil temperature to rise of washing away.It comprises valve body, spool and Returnning spring, in described spool, be provided with spool chamber, in described valve body, be provided with valve pocket, described valve pocket is provided with gland, on described gland, be fixed with fixing rod, described Returnning spring one end and fixing rod offset, and the other end and spool offset and have the movement tendency to gland end motion with movable valve plug.The utility model is for adopting cartridge valve open in usual, and the delay phenomenon while avoiding spool to open, makes system in channel status, and the temporary impact in the time of also avoiding spool to open has extended working life of product simultaneously.And the utility model also has simple in structure, compactly, take system space little, during system change, increase and decrease element convenient, rapidly, the advantage such as circulation area is large.

Description

A kind of two-way hydraulic cartridge valve open in usual
Technical field
The utility model relates to a kind of cartridge valve, is specifically related to a kind of two-way hydraulic cartridge valve open in usual.
Background technique
cartridge valve and common hydraulic control valve are different, and its through-current capacity can reach 1000L/min, and latus rectum can reach 200~250mm.Valve core structure is simple, is active in one's movements, and good airproof performance.Its function ratio is more single, mainly realizes the on-off on liquid road, while being used in combination with common hydraulic control valve, could realize the control to system fluid direction, pressure and flow.The significance of the design versatility of cartridge valve and its valve opening is to produce in enormous quantities.Cartridge valve with regard to a certain specification is example, and in order to produce in batches, the size of its valve port is unified.In addition, the valve of difference in functionality can adopt same specification valve pocket, for example: one-way valve, cone valve, flow control valve, throttle valve, two solenoid valves etc.Due to versatility, the versatility of valve opening specification, the interchangeability of its assembly process, use cartridge valve can realize perfect design configurations completely, also make cartridge valve be widely used in various hydraulic machineries.
Conventional two-way plug-in valve is Normally closed type structure at present, in order to reach oil circuit A, B hole opening state in hydraulic system, can only carry out spool by the pressure size of the control fluid of pilot valve opens and closes, hydraulic coupling need overcome spring force, during unlatching, life period is poor, and the reaction of spool travelling speed is slower, and liquid resistance is larger, there is temporary impact phenomenon while opening in spool, impels oil temperature to rise.And reliable for spool is opened, control oil pocket and conventionally have different Area Ratios from seal spool place, need to offer gap slot at spool and valve body or valve pocket sealing place, make spool reliably to open and to open, increased production and processing cost.
Summary of the invention
For solving existing cartridge valve in background technique, be normally close valve, spool is opened poor and spool if having time and is had the instantaneous problem of impelling oil temperature to rise of washing away, and the utility model provides a kind of two-way hydraulic cartridge valve open in usual.
The technical solution of the utility model is: a kind of two-way hydraulic cartridge valve open in usual, comprise valve body, spool and Returnning spring, described valve body is provided with filler opening and oil outlet, in described spool, be provided with spool chamber, in described valve body, be provided with valve pocket, described spool is located in valve pocket and is coordinated with valve pocket slippage, described valve pocket is provided with gland, on described gland, be fixed with fixing rod, described fixing rod is located in spool chamber, described Returnning spring one end and fixing rod offset, the other end and spool offset and have the movement tendency to gland end motion with movable valve plug, described spool has the filler opening of making, the primary importance that oil outlet is connected and separate filler opening, the second place of oil outlet.
As a kind of improvement of the present utility model, described fixing rod is T font, and vertical portion and the gland of T font fixing rod fix, and horizontal part and the Returnning spring of T font fixing rod offset.
As further improvement of the utility model, described fixing rod and gland fix by screw.
As further improvement of the utility model, described valve body is provided with control cover plate, described control cover plate is provided with for the oily control chamber of accommodating control, and described control chamber is connected with selector valve by opening, and described control chamber is connected with spool chamber by the through hole on gland.
As further improvement of the utility model, described opening is damping hole.
As further improvement of the utility model, described spool is offseting near gland end and Returnning spring.
As further improvement of the utility model, described spool is at the back-up ring being provided with near gland end place for offseting with Returnning spring.
As further improvement of the utility model, between described back-up ring and Returnning spring, be provided with packing ring.
As further improvement of the utility model, described spool adopts straight-tube or offers gap slot at spool and valve pocket sealing place.
The beneficial effects of the utility model are, adopt cartridge valve open in usual, and the delay phenomenon while avoiding spool to open, makes system in channel status, and the temporary impact in the time of also avoiding spool to open has extended working life of product simultaneously.And the utility model also has simple in structure, compactly, take system space little, during system change, increase and decrease element convenient, rapidly, the advantage such as circulation area is large.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model embodiment's structural representation.
Structural representation when accompanying drawing 2 is closed for the utility model embodiment spool 2.
In figure, 1, valve body; 11, filler opening; 12, oil outlet; 2, spool; 21, spool chamber; 22, back-up ring; 23, packing ring; 24, gap slot; 3, Returnning spring; 4, valve pocket; 5, gland; 51, through hole; 6, fixing rod; 61, vertical portion; 62, horizontal part; 7, screw; 8, control cover plate; 81, opening; 82, control chamber; 9, selector valve.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described further:
By Fig. 1, in conjunction with shown in Fig. 2, a kind of two-way hydraulic cartridge valve open in usual, comprises valve body 1, spool 2 and Returnning spring 3, and specifically, described spool 2 adopts straight-tube or offers gap slot 24 in spool 2 and valve pocket 4 sealings place.Described valve body 1 is provided with filler opening 11 and oil outlet 12, in described spool 2, be provided with spool chamber 21, in described valve body 1, be provided with valve pocket 4, described spool 2 is located in valve pocket 4 and is coordinated with valve pocket 4 slippages, described valve pocket 4 is provided with gland 5, on described gland 5, be fixed with fixing rod 6, described fixing rod 6 is located in spool chamber 21, described Returnning spring 3 one end and fixing rod 6 offset, the other end and spool 2 offset and have the movement tendency to gland 5 end motions with movable valve plug 2, described spool 2 has the filler opening of making 11, the primary importance that oil outlet 12 is connected and separate filler opening 11, the second place of oil outlet 12.Specifically, the primary importance of described spool in often opening.Specifically, Returnning spring can draw spool to make spool in normally open.The beneficial effects of the utility model are, adopt cartridge valve open in usual, and the delay phenomenon while avoiding spool to open, makes system in channel status, and the temporary impact in the time of also avoiding spool to open has extended working life of product simultaneously.And the utility model also has simple in structure, compactly, take system space little, during system change, increase and decrease element convenient, rapidly, the advantage such as circulation area is large.
Described fixing rod 6 is T font, and vertical portion 61 and the gland 5 of T font fixing rod 6 fix, and horizontal part 62 and the Returnning spring 3 of T font fixing rod 6 offset.Specifically, described fixing rod 6 fixes by screw 7 with gland 5.Like this relatively simple for structure, Returnning spring can be installed reliably, and the effect of guiding can also be played to Returnning spring in the vertical portion of fixing rod.
Described valve body 1 is provided with controls cover plate 8, described control cover plate 8 is provided with for the oily control chamber 82 of accommodating control, described control chamber 82 is connected with selector valve 9 by opening 81, and described control chamber 82 is connected with spool chamber 21 by the through hole 51 on gland 5.Specifically, described opening 81 is damping hole.Specifically, described selector valve is two position, three-way electromagnetic change valve.Described damping hole can be so that closing of spool be more steady.The utility model adopts board-like installation, and during spool valve pocket etc. is all integrated in valve body, solenoid directional control valve, control cover plate are fastened in valve body surface.All oil circuits between components and parts are communicated with, and all damping hole and the solenoid directional control valve on the drilled oil passage in valve body and cartridge valve cover plate realized.Such structure is more simple, easy for installation.
Described spool 2 is offseting near gland 5 ends and Returnning spring 3.Specifically, described spool 2 is at the back-up ring 22 being provided with near gland 5 end places for offseting with Returnning spring 3.In particular, between described back-up ring 22 and Returnning spring 3, be provided with packing ring 23.During valve core movement, drive back-up ring and the packing ring motion be located on spool, thereby play the effect of Compress Spring, Returnning spring provides reposition force, when selector valve must not electricity.
When spool is during in primary importance, now three two way selected valves must not be electric, hydraulic oil on control cover plate in control chamber is through opening, selector valve oil sump tank, now filler opening and oil outlet are in connected state, spring, in uncompressed state, is normally open position of the present utility model (as shown in Figure 1).When solenoid directional control valve obtains when electric, hydraulic oil enters control chamber from circulation damping hole, hydraulic oil in control chamber flows into spool chamber by the through hole on gland, now hydraulic oil can be by the gap between spool inwall and fixing rod, or on the horizontal part of fixing rod, hole is set, make hydraulic oil be full of spool, spool overcomes the elastic force of spring under the effect of hydraulic coupling, spool moves downward, by the back-up ring and the packing ring that arrange on spool, Returnning spring is compressed, and now spool cuts off filler opening and oil outlet (as shown in Figure 2).When solenoid valve dead electricity, the control chamber fluid of controlling cover plate flows into fuel tank through damping hole, selector valve under the reaction force of spring, and now spool is in normally open.
Every technician's notice: although the utility model describes according to above-mentioned embodiment; but invention thought of the present utility model is not limited in this model utility; the repacking of any utilization inventive concept, all will include in this patent scope of patent protection.

Claims (9)

1. a two-way hydraulic cartridge valve open in usual, comprise valve body (1), spool (2) and Returnning spring (3), described valve body (1) is provided with filler opening (11) and oil outlet (12), it is characterized in that: in described spool (2), be provided with spool chamber (21), in described valve body (1), be provided with valve pocket (4), described spool (2) is located in valve pocket (4) and is coordinated with valve pocket (4) slippage, described valve pocket (4) is provided with gland (5), on described gland (5), be fixed with fixing rod (6), described fixing rod (6) is located in spool chamber (21), described Returnning spring (3) one end and fixing rod (6) offset, the other end and spool (2) offset and have band movable valve plug (2) to the movement tendency of gland (5) end motion, described spool (2) has the filler opening of making (11), the primary importance that oil outlet (12) is connected and separate filler opening (11), the second place of oil outlet (12).
2. a kind of two-way hydraulic cartridge valve open in usual according to claim 1, it is characterized in that described fixing rod (6) is T font, the vertical portion (61) of T font fixing rod (6) fixes with gland (5), and the horizontal part (62) of T font fixing rod (6) offsets with Returnning spring (3).
3. a kind of two-way hydraulic cartridge valve open in usual according to claim 1 and 2, is characterized in that described fixing rod (6) and gland (5) fix by screw (7).
4. a kind of two-way hydraulic cartridge valve open in usual according to claim 1, it is characterized in that described valve body (1) is provided with control cover plate (8), described control cover plate (8) is provided with for the oily control chamber of accommodating control (82), described control chamber (82) is connected with selector valve (9) by opening (81), and described control chamber (82) is connected with spool chamber (21) by the through hole (51) on gland (5).
5. a kind of two-way hydraulic cartridge valve open in usual according to claim 4, is characterized in that described opening (81) is damping hole.
6. a kind of two-way hydraulic cartridge valve open in usual according to claim 1, is characterized in that described spool (2) is offseting with Returnning spring (3) near gland (5) end.
7. a kind of two-way hydraulic cartridge valve open in usual according to claim 6, is characterized in that described spool (2) is at the back-up ring (22) being provided with near gland (5) end place for offseting with Returnning spring (3).
8. a kind of two-way hydraulic cartridge valve open in usual according to claim 7, is characterized in that being provided with packing ring (23) between described back-up ring (22) and Returnning spring (3).
9. a kind of two-way hydraulic cartridge valve open in usual according to claim 1, is characterized in that described spool (2) adopts straight-tube or offers gap slot (24) in spool (2) and valve pocket (4) sealing place.
CN201420395405.5U 2014-07-17 2014-07-17 A kind of two-way hydraulic cartridge valve open in usual Active CN203948754U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420395405.5U CN203948754U (en) 2014-07-17 2014-07-17 A kind of two-way hydraulic cartridge valve open in usual

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420395405.5U CN203948754U (en) 2014-07-17 2014-07-17 A kind of two-way hydraulic cartridge valve open in usual

Publications (1)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3584475A1 (en) * 2018-06-20 2019-12-25 Robert Bosch GmbH Pilot-operated hydraulic installed distributing valve
CN112664659A (en) * 2021-01-04 2021-04-16 北京华海基业机械设备有限公司 Cut-off valve
WO2021115521A1 (en) * 2019-12-10 2021-06-17 Schaeffler Technologies AG & Co. KG Device with a component and a valve housing
WO2021115522A1 (en) * 2019-12-10 2021-06-17 Schaeffler Technologies AG & Co. KG Valve and device for controlling pressures of a flow medium

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3584475A1 (en) * 2018-06-20 2019-12-25 Robert Bosch GmbH Pilot-operated hydraulic installed distributing valve
WO2021115521A1 (en) * 2019-12-10 2021-06-17 Schaeffler Technologies AG & Co. KG Device with a component and a valve housing
WO2021115522A1 (en) * 2019-12-10 2021-06-17 Schaeffler Technologies AG & Co. KG Valve and device for controlling pressures of a flow medium
CN112664659A (en) * 2021-01-04 2021-04-16 北京华海基业机械设备有限公司 Cut-off valve

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