CN202483979U - Simple high-precision synchronization valve - Google Patents
Simple high-precision synchronization valve Download PDFInfo
- Publication number
- CN202483979U CN202483979U CN2012200379758U CN201220037975U CN202483979U CN 202483979 U CN202483979 U CN 202483979U CN 2012200379758 U CN2012200379758 U CN 2012200379758U CN 201220037975 U CN201220037975 U CN 201220037975U CN 202483979 U CN202483979 U CN 202483979U
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- valve
- oil
- valve body
- valve core
- spool
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Abstract
The utility model belongs to the field of engineering machinery hydraulic technology and provides a simple high-precision synchronization valve. The simple high-precision synchronization valve comprises a valve body and a valve core arranged in the valve body. An oil inlet P, a working oil opening A and a working oil opening B are arranged on the valve body. A seal screw plug I is arranged between one end of the valve core and the valve body, and a seal screw plug II is arranged between the other end of the valve core and the valve body. An oil inlet throttle hole I and an oil inlet throttle hole II are symmetrically arranged on the valve core. An oil outlet of a cavity a is symmetrically provided with a plurality of rows of throttling holes I, and the oil outlet of a cavity b is symmetrically provided with a plurality of rows of throttling holes II. A plurality of balancing tanks are arranged on a surface of the valve core. According to the technology, stuck phenomenon is avoided in the working process of the simple high-precision synchronization valve, and surface abrasion of the valve core is lowered. By arranging the thin-walled holes on the oil inlet of the valve core, sensitivity of the synchronous valve on oil temperature is effectively weakened. By fixedly arranging the plurality of the throttling holes circumferentially distributed on the oil outlets, influence of fluid power on the synchronous valve from is reduced. The simple high-precision synchronization valve is simple in structure, convenient to process, low in the valve core abrasion, high in synchronous accuracy, and less susceptible to oil temperature influence.
Description
Technical field
The utility model belongs to the engineering machinery hydraulic technical field, is specifically related to a kind of simple high-precision synchronous valve that is used for the construction machinery hydraulic system synchronization control.
Background technique
Along with the development of society, the Hydraulic Synchronizing technical requirements also more and more widely.Realize that synchronous control technique has two kinds of methods: the one, closed loop control; The 2nd, open loop control.Closed loop control is mainly used feedback signal and is eliminated or reduce deviation, so synchronization accuracy is higher, but its complex structure, expensive, the maintenance difficult of cost make them use very few in engineering machinery field; It is very extensive that open loop control is used because of simple in structure, convenient processing and manufacture, cost are cheap relatively; But the synchronous valve of open loop control often synchronization accuracy is difficult to improve; Generally between 5%～8%, and be subject to the influence of oil temperature, difficultly satisfy the requirement of system synchronization control.
The model utility content
To the problems referred to above that exist in the existing technology, the purpose of the utility model is to provide a kind of simple high-precision synchronous valve that is used for the construction machinery hydraulic system synchronization control.
Described a kind of simple high-precision synchronous valve; Comprise valve body and the spool that is arranged in the valve body; Described valve body is provided with oil inlet P; Actuator port A and actuator port B is characterized in that fixing through sealing plug screw I and sealing plug screw II respectively between described spool two ends and the valve body, and the meter in hole I and the meter in hole II of two symmetries is set on the spool; The a chamber of spool and the oil outlet place in b chamber are symmetrical set plurality of rows throttling pore I and throttling pore II respectively, and spool face is provided with some compensating grooves.
Described a kind of simple high-precision synchronous valve is characterized in that described meter in hole I and meter in hole II are the thin-walled aperture.
Described a kind of simple high-precision synchronous valve is characterized in that described plurality of rows throttling pore I and throttling pore II are circumferential distribution at the oil outlet place respectively.
The utility model places spool in the valve body through adopting above-mentioned technology, and a sealing plug screw is respectively established at the spool two ends, and the spool oil inlet hole adopts two proportional thin-walled throttle orifices of symmetry, weakens the influence of oil temperature to synchronization accuracy; Oil outlet place, spool two ends is provided with the circumferential distributed throttling pore of plurality of rows of symmetry; Make the fuel-displaced direction of fluid and valve core axis's near normal; Eliminate the adverse effect of the power of surging greatly, make synchronization accuracy influenced by meter in hole machining accuracy, improve synchronization accuracy greatly valve core movement; And, reduce the stuck and wear phenomenon of spool at spool face some compensating grooves that distribute.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the spool sectional structure schematic representation of the utility model;
Fig. 3 is the profile unfolded drawing of Fig. 2.
Among the figure: 1-valve body, 2-spool, 3-sealing plug screw I, 4-throttling pore I, 5-meter in hole I, 6-meter in hole II, 7-throttling pore II, 8-sealing plug screw II, 9-compensating groove.
Embodiment
Below in conjunction with Figure of description the utility model is done further description:
Shown in Fig. 1-3; A kind of simple high-precision synchronous valve comprises valve body 1 and the spool 2 that is arranged in the valve body 1, and described valve body 1 is provided with oil inlet P; Actuator port A and actuator port B; Fix through sealing plug screw I 3 and sealing plug screw II 8 respectively between described spool 2 two ends and the valve body 1, the meter in hole I 5 and meter in hole II 6 of two symmetries is set on the spool 2, a chamber of spool 2 and the oil outlet place in b chamber are symmetrical set plurality of rows throttling pore I 4 and throttling pore II 7 respectively; Shown in Fig. 1-2; Spool 2 surfaces are provided with some compensating grooves 9, and described meter in hole I 5 is the thin-walled aperture with meter in hole II 6, can design the meter in hole I 5 and meter in hole II 6 of the diameter of different proportion according to actual needs.
Shown in Fig. 1-3, described throttling pore I 4 is circumferential distribution at the oil outlet place respectively with throttling pore II 7, can design hole diameter and quantity as required.
The working principle of the utility model is following: the P mouth is a filler opening, and A mouth and B mouth are actuator ports, can regulate the aperture of meter in hole I 5 and meter in hole II 6 according to the flow system flow demand; When actuator port A operating load during greater than actuator port B operating load, actuator port A propagation of pressure is to a chamber, and the hydraulic coupling that acts on a chamber is ordered about spool 2 with the power of surging and moved right; Hide oil outlet place, b chamber plurality of rows throttling pore II 7; At this moment, the b chamber makes the b chamber hydraulic coupling and the power of surging become big because the throttling pore number reduces; Until reaching balance again with a chamber active force; The spool stop motion because adopt plurality of rows throttling pore I 4 and throttling pore II 7 at the restriction place, makes outlet fluid direction and valve core axis become to be close to 90 ° direction motion; Weaken the influence of power of being surged of a chamber and two ends, b chamber greatly, thereby make synchronization accuracy obtain bigger raising.Meter in hole I 5 adopts thin-walled small structure mode with meter in hole II 6; Can effectively avoid synchronization accuracy to receive the influence of oil temperature; Some compensating grooves 9 in spool 2 surface distributed; Can make the spool face pressure distribution even, reduce the stuck phenomenon of wearing and tearing of spool, prolong operating life with spool face.
Claims (3)
1. simple high-precision synchronous valve; Comprise valve body (1) and be arranged on the spool (2) in the valve body (1); Described valve body (1) is provided with oil inlet P; Actuator port A and actuator port B is characterized in that fixing through sealing plug screw I (3) and sealing plug screw II (8) respectively between described spool (2) two ends and the valve body (1), and the meter in hole I (5) and the meter in hole II (6) of two symmetries is set on the spool (2); The a chamber of spool (2) and the oil outlet place in b chamber are symmetrical set plurality of rows throttling pore I (4) and throttling pore II (7) respectively, and spool (2) surface is provided with some compensating grooves (9).
2. a kind of simple high-precision synchronous valve according to claim 1 is characterized in that described meter in hole I (5) and meter in hole II (6) are the thin-walled aperture.
3. a kind of simple high-precision synchronous valve according to claim 1 is characterized in that described throttling pore I (4) and throttling pore II (7) are circumferential distribution at the oil outlet place respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200379758U CN202483979U (en) | 2012-02-07 | 2012-02-07 | Simple high-precision synchronization valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200379758U CN202483979U (en) | 2012-02-07 | 2012-02-07 | Simple high-precision synchronization valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202483979U true CN202483979U (en) | 2012-10-10 |
Family
ID=46958405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200379758U Expired - Lifetime CN202483979U (en) | 2012-02-07 | 2012-02-07 | Simple high-precision synchronization valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202483979U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013521A (en) * | 2017-04-11 | 2017-08-04 | 鑫矿液压科技有限公司 | A kind of synchronous valve |
| CN107962737A (en) * | 2017-11-24 | 2018-04-27 | 宁波海太工贸有限公司 | A kind of injection-moulding device driven by synchronous hydraulic cylinder |
| CN107975511A (en) * | 2017-11-24 | 2018-05-01 | 宁波海太工贸有限公司 | A kind of synchronous hydraulic cylinder |
| CN109667802A (en) * | 2018-11-30 | 2019-04-23 | 广东轻工职业技术学院 | A kind of mixing control synchronous valve |
-
2012
- 2012-02-07 CN CN2012200379758U patent/CN202483979U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013521A (en) * | 2017-04-11 | 2017-08-04 | 鑫矿液压科技有限公司 | A kind of synchronous valve |
| CN107013521B (en) * | 2017-04-11 | 2018-06-08 | 鑫矿液压科技有限公司 | A kind of synchronous valve |
| CN107962737A (en) * | 2017-11-24 | 2018-04-27 | 宁波海太工贸有限公司 | A kind of injection-moulding device driven by synchronous hydraulic cylinder |
| CN107975511A (en) * | 2017-11-24 | 2018-05-01 | 宁波海太工贸有限公司 | A kind of synchronous hydraulic cylinder |
| CN109667802A (en) * | 2018-11-30 | 2019-04-23 | 广东轻工职业技术学院 | A kind of mixing control synchronous valve |
| CN109667802B (en) * | 2018-11-30 | 2020-06-19 | 广东轻工职业技术学院 | Hybrid control synchronous valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |