CN101251225B - Hydraulic pressure pressure-regulating automatic reverse combined valve for double line grease lubricating system - Google Patents
Hydraulic pressure pressure-regulating automatic reverse combined valve for double line grease lubricating system Download PDFInfo
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- CN101251225B CN101251225B CN2008100547709A CN200810054770A CN101251225B CN 101251225 B CN101251225 B CN 101251225B CN 2008100547709 A CN2008100547709 A CN 2008100547709A CN 200810054770 A CN200810054770 A CN 200810054770A CN 101251225 B CN101251225 B CN 101251225B
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Abstract
The invention belongs to the hydraulic reversing valve technical field, particularly relates to an automatic hydraulic pressure-regulation reversing combination valve used for a double line grease lubricating system, and provides a reversing valve which is applicable to the grease supply of high-pressure electric grease pumps as well as middle and low pressure electric grease pumps. The automatic hydraulic pressure-regulation reversing combination valve used for a double line grease lubricating system comprises a valve body, the valve body is provided with two grease inlets and two grease outlets, and three reversing slide valves are arranged inside the valve body. The invention is characterized in that: two symmetrical plunger type grease distribution check valves are arranged between the grease inlets and the slide valves, the grease distribution check valves and a reversing slide valve grease path are connected with a pressure-regulation safety valve, and one grease outlet is provided with a pressure sensor interface. Compared with the prior art, the valve has the following advantages that: the valve adopts the hydraulic control to automatically change directions, is applicable to the lubrication systems less than 40MPa pressure, and has big reversing pressure-regulation range (from 3.5MPa to 35MPa), flexible direction change, no noise, strong anti-pollution capacity and reliable work.
Description
Technical field
The invention belongs to the technical field of hydraulicdirectional control valve, be specifically related to a kind of hydraulic pressure pressure-regulating automatic reverse combined valve for double line grease lubricating system.
Background technique
The changement of the electronic grease pump of often selecting for use in the two-wire grease lubricating system mainly contains three kinds: 1. solenoid directional control valve, 2. electronic selector valve, 3. hydraulicdirectional control valve.Solenoid directional control valve can only be used for pressure and be lower than the 20MPa lubrication system because electromagnetic force is limit.Electronic selector valve adopts the minitype motor driving speed reducer to drag guiding valve commutation and limit switch location, can be used for the 40MPa lubrication system, but complicated because of its mechanism, is difficult for adjusting, and causes commutation out of control easily.Existing hydraulicdirectional control valve great majority adopt hydraulic pressure and mechanical linkage which controls, but because range of regulation is low, also only are used for the 20MPa lubrication system.
Hydraulicdirectional control valve since commutation steadily, advantage such as noise free, stain resistance be strong, selected for use, but because existing hydraulicdirectional control valve complex structure by increasing user, the cost of production height, reason such as easy care has not limited it and has promoted the use of.117 pages of " lubricated with sealing " 2004 the 5th phases have been introduced the working principle of hydraulicchange-over valve about " application of a hydraulicdirectional control valve " literary composition.So one section prompting is arranged: " what deserves to be mentioned is that system's minimum working pressure power must not be lower than 14MPa, otherwise change-over valve core can't move in the article.”
All below 20MPa, actual working pressure is generally between 5MPa～15MPa for the most systems working pressure in the two-wire grease lubricating system.If system pressure is too high, will bring unnecessary waste and power consumpiton.These several years, China's industrial development was rapid, and manufacturing mechanism is increasing, and this just requires the grease lubricating system petroleum pipeline more and more longer, needed the more electronic grease pump of high pressure, and this also just needs the more selector valve of high pressure.
Summary of the invention
The invention provides the selector valve of not only suitable high pressure but also the suitable electronic dry oil pump fuel feeding of mesolow, a kind of hydraulic pressure pressure-regulating automatic reverse combined valve for double line grease lubricating system specifically is provided.
The present invention adopts following technological scheme to realize:
A kind of hydraulic pressure pressure-regulating automatic reverse combined valve for double line grease lubricating system, comprise valve body, have two oilers on the valve body, two oil outlets, valve inner is provided with three reversing slide valves, two plunger types that it is characterized in that being provided with between oiler and the reversing slide valve symmetry are joined oily one-way valve, join on oily one-way valve and the reversing slide valve oil circuit and are connected regulator valve, and an oil outlet place leaves pressure sensor interface.
Described three reversing slide valves structure that is triangularly arranged.
The spool of described regulator valve is a sliding valve structure, has pressure regulation circular groove and off-load circular groove on the spool.
Described two plunger types are joined oily one-way valve and are oppositely arranged, and the centre is left at interval, joins oily one-way valve and comprises plunger bushing, establishes plunger body in the plunger bushing, and the plunger body center has oil duct.
The claimant has carried out simulation test to two samples of the present invention, adopts N46 hydraulic oil that its commutation function is carried out the continuous test on 8 Working days of load, 7～8 seconds reversal interval time before this.Then select for use 2# lithium grease (GB7324-1994) to test (1 ℃ of room temperature, minimum commutation pressure 1.5MPa, Maximum operating pressure 40MPa), all obtained satisfied effect, never occurred not commutation phenomena in the test.
The relative prior art of the present invention has following beneficial effect: adopt hydraulic control automatic reverse, be applicable in the following lubrication system of 40MPa pressure, the commutation range of regulation is big, and from 3.5MPa～35MPa, commutation is flexible, noise free, and stain resistance is strong, reliable operation.
Description of drawings
Fig. 1 is the fuel-displaced schematic diagram of A mouth of the present invention
Fig. 2 is the fuel-displaced schematic diagram of B mouth of the present invention
Fig. 3 is an external structure schematic representation of the present invention
Fig. 4 is an internal structure schematic representation of the present invention
Fig. 5 is the C portion enlarged view of Fig. 4
Among the figure: 1-valve body, 2-are joined oily one-way valve, the 3-reversing slide valve; 3.1-reversing slide valve one, 3.2-reversing slide valve two, 3.3-reversing slide valve three; the 4-regulator valve, 4.1-spool, 4.1.1-pressure regulation circular groove; 4.1.2-the off-load circular groove, 4.2-Regulation spring, 4.3-adjusting screw rod; 4.4-safety cover; the 5-cover plate, 6-pressure transducer, 7-pressure gauge
Embodiment
In conjunction with the accompanying drawings the specific embodiment of the present invention is described further, embodiment is used for illustrating of the present invention, rather than it is imposed any restrictions.
The present invention a kind ofly joins oily one-way valve with plunger type, pressure regulator valve, safety valve, the multifunction valve group that reversing slide valve, pressure gauge, pressure transducer are combined.With regard to its structure, function is described below one by one below:
1. join oily one-way valve---replace fuel feeding by two plungers, for guaranteeing oil sucting cavity degree of vacuum, prevent the charge oil pressure failure phenomenon, the present invention will join oily one-way valve 2 and change pressure oil forced resetting structure into by spring reset.That is to say that when a plunger oil extraction, the one-way valve of another plunger outlet is forced closed (seeing Fig. 1,2).The combination of joining oily one-way valve 2 and selector valve is not only structurally more reasonable.And it is also more simple and convenient in fabrication and processing and maintenance.
2. regulator valve---because safety valve and pressure regulator valve all are that to utilize spring to realize pressure controlled, spool design is become to have pressure regulation, safety two kinds of functions (seeing Fig. 1,2,4,5), this structure has not only saved a sleeve spring regulation structure, and when regulating commutation pressure, also regulated opening pressure of safety valve, the pressure difference between 2 is 5MPa.Under normal circumstances, regulator valve 4 hydraulic fluid ports are opened, and pressure oil promotes the reversing slide valve commutation; When stuck akinesia appearred in reversing slide valve, pressure oil continue to promote to move on the adjusting pressuring valve core 4.1, and pressure oil cavity and off-load circular groove 4.1.2 are connected, and prevented from that electronic dry oil pump from overloading to play the effect of safety protection.Spool adopts slide-valve structure, and pre-pressure of the spring is little, has avoided spring because of being in high pressure for a long time, and has produced the elastic force failure phenomenon prematurely.Because spool is in the slip working state, the safe failure of removal of having avoided spool to block and cause because of dirt.
3. reversing slide valve---with reference to the laddering commutation working principle of three guiding valves, reversing slide valve 3 adopts the rounded projections arranged form, has not only shortened the oily passage of control and has reduced flow resistance loss, and simplified processing technology.For satisfying the product interchangeability requirement, under the constant situation of Conncetion cimension, strengthen the reversing slide valve sectional area, the one, increased guiding valve thrust, the 2nd, improved the rigidity of guiding valve; Owing to there is not the fuel feeding indicating arm, avoided the fricting resistance loss that causes because of indicating arm and seal ring friction.Move minimum adjusting pressure less than 1.5MPa through its commutation of experimental test.
4. the present invention adopts the integrally closed structural design, does not have to expose indicating arm or adjustable lever, all adopts oil-resistant rubber ring (pad) sealing, has effectively prevented the environmental pollution that causes because of leaking of lubricating grease.
5. installation dimension of the present invention is identical with the solenoid directional control valve installation dimension, and boundary dimension and weight are less than solenoid directional control valve, and cost of production is compared basic identical with solenoid directional control valve.Compare with hydraulicdirectional control valve with existing electronic selector valve, its boundary dimension, weight and cost of production are less than 50%.
6. after the two-wire grease lubricating system adopts the present invention, in the grease lubricating system design,, make grease lubricating system simpler and more direct, reliable with regard to elements such as the terminal pressure-operated valve that must be equipped with of desirable sterilizing system, differential pressure switch, electric pipeline configurations.
7. range of regulation of the present invention is big, is decided to be according to its adjusting pressure range of test data: 3.5MPa～35MPa.
8. stay a pressure sensor interface (seeing Fig. 1, Fig. 2) at oil outlet of the present invention (A mouth), be used to export fuel feeding number of times signal.If electric control system adopts PLC control, also can implement the production on-line monitoring to the two-wire grease lubricating system; Realize accurate fuel feeding and judge whether its two-wire grease lubricating system work is normal.For example: fuel feeding is less than set time blanking time, illustrates in the two-wire grease lubricating system that stopping up may appear in distributor to be failure to actuate; The two-wire grease lubricating system just has leakage to fuel feeding greater than set time blanking time.
The present invention's (hereinafter to be referred as combination brake switch and proporting) operating principle is as follows:
The lubricating grease of dry oil pump output enters in the combination brake switch and proporting through the P mouth, enters regulator valve 4 bottoms through joining oily one-way valve 2, through guiding valve 1,2,3, discharges (see figure 1) from the A mouth, and the A mouth is connected with the A line of two-wire grease lubricating system, and lubricating grease is sent to distributor.The B mouth is connected with the B line of two-wire grease lubricating system.Finish the fuel feeding of lubricating point when distributor, the A linear pressure raises, pressure oil promotes regulator valve 4 and rises, until connecting with Regulation Control oil passage K, pressure oil is through reversing slide valve 3 3.3, enter reversing slide valve one 3.1 bottoms, promote reversing slide valve 1 and rise, connect reversing slide valve 2 3.2 upper channels; Pressure oil enters reversing slide valve 2 3.2 tops, promotes reversing slide valve 2 3.2 and moves down, and connects reversing slide valve 3 3.3 lower passage, pressure oil enters reversing slide valve 3 3.3 bottoms, promote to move on the reversing slide valve 3 3.3, and discharge, enter two-wire grease lubricating system B line from the B mouth.Finish the fuel feeding of lubricating point when distributor, the B linear pressure raises, and pressure oil promotes regulator valve 4 and rises, and so far combination brake switch and proporting has just been finished the (see figure 2) that once commutates.
Claims (4)
1. hydraulic pressure pressure-regulating automatic reverse combined valve for double line grease lubricating system, comprise valve body (1), have two oilers on the valve body (1), two oil outlets, valve body (1) inside is provided with three reversing slide valves (3), two plunger types that it is characterized in that being provided with between oiler and the reversing slide valve (3) symmetry are joined oily one-way valve (2), join on oily one-way valve (2) and reversing slide valve (3) oil circuit and are connected regulator valve (4), and an oil outlet place leaves pressure transducer (6) interface.
2. hydraulic pressure pressure-regulating automatic reverse combined valve for double line grease lubricating system according to claim 1 is characterized in that described three reversing slide valves (3) structure that is triangularly arranged.
3. two-wire grease lubricating system according to claim 1 and 2 is regulated combination brake switch and proporting automatically with the hydraulic pressure pressure regulation, the spool (4.1) that it is characterized in that described regulator valve (4) is a sliding valve structure, has pressure regulation circular groove (4.1.1) and off-load circular groove (4.1.2) on the spool (4.1).
4. two-wire grease lubricating system according to claim 3 is regulated combination brake switch and proporting automatically with the hydraulic pressure pressure regulation, it is characterized in that described two plunger types join oily one-way valve (2) and be oppositely arranged, the centre is left at interval, join oily one-way valve (2) and comprise plunger bushing, establish plunger body in the plunger bushing, the plunger body center has oil duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100547709A CN101251225B (en) | 2008-04-09 | 2008-04-09 | Hydraulic pressure pressure-regulating automatic reverse combined valve for double line grease lubricating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100547709A CN101251225B (en) | 2008-04-09 | 2008-04-09 | Hydraulic pressure pressure-regulating automatic reverse combined valve for double line grease lubricating system |
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| Publication Number | Publication Date |
|---|---|
| CN101251225A CN101251225A (en) | 2008-08-27 |
| CN101251225B true CN101251225B (en) | 2011-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100547709A Expired - Fee Related CN101251225B (en) | 2008-04-09 | 2008-04-09 | Hydraulic pressure pressure-regulating automatic reverse combined valve for double line grease lubricating system |
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Families Citing this family (13)
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| DE102009038869B4 (en) * | 2009-03-28 | 2020-06-18 | Aktiebolaget Skf | Device for the metered dispensing of a lubricant |
| CN102022612B (en) * | 2010-11-03 | 2013-04-03 | 张卫华 | Fluid flow direction control valve and valve bank system |
| CN102889464A (en) * | 2012-10-25 | 2013-01-23 | 江苏世强电动工具有限公司 | Pressure-operated valve |
| CN103672357B (en) * | 2013-12-19 | 2016-02-24 | 湖北航达科技有限公司 | Air system changeover valve |
| CN103711976B (en) * | 2013-12-19 | 2016-01-20 | 湖北航达科技有限公司 | Solenoid valve for air system conversion |
| CN106051444B (en) * | 2016-06-29 | 2018-06-08 | 浙江流遍机械润滑有限公司 | A kind of two-wire progressive distributor |
| DE102017200481A1 (en) | 2017-01-13 | 2018-07-19 | Skf Lubrication Systems Germany Gmbh | Lubricant distribution system and method for its operation |
| CN107559572B (en) * | 2017-09-01 | 2019-05-10 | 浙江威盾机械科技有限公司 | A kind of distributor |
| CN110848549B (en) * | 2018-08-20 | 2025-02-07 | 郑州奥特科技有限公司 | A lubrication system |
| CN110017190B (en) * | 2019-05-14 | 2023-12-26 | 富奥汽车零部件股份有限公司 | Method and device for controlling two-stage variable oil pump by combined valve |
| CN111779963B (en) * | 2020-07-13 | 2021-04-30 | 青岛盘古智能制造股份有限公司 | Automatic lubricating device |
| CN114321448B (en) * | 2022-02-16 | 2024-07-19 | 浙江威盾机械科技有限公司 | Mechanical double-line reversing valve and piston coating process |
| CN114777002B (en) * | 2022-04-27 | 2023-12-01 | 启东德乐润滑设备有限公司 | Lubricating oil system control valve group capable of regulating pressure and distributing flow |
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|---|---|---|---|---|
| CN86207117U (en) * | 1986-09-29 | 1988-02-24 | 许建中 | Hydraulic pressure vibration servo oil tank |
| DD296149A5 (en) * | 1990-02-21 | 1991-11-21 | Schmiergeraetewerk Saxonia Schwarzenberg,De | CONVERSION VALVE, ESPECIALLY FOR TWO-LAYER FILLING MACHINERY |
| CN1031365C (en) * | 1993-07-02 | 1996-03-20 | 杨存俭 | Combination type sliding valve |
| CN201184489Y (en) * | 2008-04-09 | 2009-01-21 | 义小毛 | Hydraulic pressure regulating automatic reversing combined valve for double-line grease lubricating system |
-
2008
- 2008-04-09 CN CN2008100547709A patent/CN101251225B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86207117U (en) * | 1986-09-29 | 1988-02-24 | 许建中 | Hydraulic pressure vibration servo oil tank |
| DD296149A5 (en) * | 1990-02-21 | 1991-11-21 | Schmiergeraetewerk Saxonia Schwarzenberg,De | CONVERSION VALVE, ESPECIALLY FOR TWO-LAYER FILLING MACHINERY |
| CN1031365C (en) * | 1993-07-02 | 1996-03-20 | 杨存俭 | Combination type sliding valve |
| CN201184489Y (en) * | 2008-04-09 | 2009-01-21 | 义小毛 | Hydraulic pressure regulating automatic reversing combined valve for double-line grease lubricating system |
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| CN101251225A (en) | 2008-08-27 |
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Granted publication date: 20110720 Termination date: 20120409 |