CN103574266A - Double-electromagnet two-position-two-way high-pressure dry oil switching valve - Google Patents
Double-electromagnet two-position-two-way high-pressure dry oil switching valve Download PDFInfo
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- CN103574266A CN103574266A CN201310553564.3A CN201310553564A CN103574266A CN 103574266 A CN103574266 A CN 103574266A CN 201310553564 A CN201310553564 A CN 201310553564A CN 103574266 A CN103574266 A CN 103574266A
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Abstract
The invention discloses a double-electromagnet two-position-two-way high-pressure dry oil switching valve, and belongs to the technical field of centralized mechanical-equipment dry oil lubricating. The double-electromagnet two-position-two-way high-pressure dry oil switching valve is applied to a dry oil centralized lubrication system, plays a role in oil way opening and closing, is structurally composed of a valve-opening electromagnet assembly, a valve-closing electromagnet assembly, a valve body, a valve core, a sealing piece, a control system, a valve-opening striking pin, a valve-closing striking pin and a connecting bolt, and is characterized in that the valve-opening electromagnet assembly and the valve-closing electromagnet assembly are connected to the two ends of the valve body through the connecting bolt and are controlled by the control system through connecting circuits, an oil inlet cavity and an oil outlet cavity are formed in the valve body, the valve core is provided with an oil guide groove, pressure equalizing grooves and a sealing ring groove, resultant force applied to the valve core by oil pressure equals zero under any state, and the valve body and the valve core are sealed together in a clearance sealing and sealing ring sealing mode. The double-electromagnet two-position-two-way high-pressure dry oil switching valve radically solves the technical problems that the movement of opening and closing an oil way of the dry oil centralized lubrication system is not reliable under high-pressure low-temperature situations and the like.
Description
technical field
The present invention relates to a kind of high pressure drier oil switch valve using in grease concentrating lubricating system, belong to machinery grease centralized lubrication technical field.
background technique
Lubricated whether well for conventionally thering is decisive role in working life of component of machine, correctly the selecting and safeguard that the impact for the machinery life-span is vital of lubrication system.Grease centralized lubrication with working life of its oiling convenience, pressure lubrication, prolongation bearing, increase mechanical available time, save the advantages such as lubricating grease and be used widely at the position of the various bad working environments such as port machinery equipment, mining machinery, conveyor belt and various large size machine tool equipment.At present, in grease concentrating lubricating system, the switch of oil circuit is controlled and is extensively adopted two-position four-way high-voltage electromagnetic selector valve.In grease concentrating lubricating system, the using method of two-position four-way high-voltage electromagnetic selector valve in switch oil circuit has two kinds: a kind of is that one in two oil outlets is blocked, and return opening is taken back to oil pipe line; Another kind method is, return opening is connected with oil outlet, and no-bypassing in oil circuit.A kind of front method, two-position four-way high-voltage electromagnetic selector valve reliable in action, but need to have return line, increased the cost of system; A kind of rear method, does not need oily loop, although reduced cost, in outlet, has more than 10MPa high pressure or during at cold environment, and two-position four-way high-voltage electromagnetic selector valve often cannot action message, makes lubricated cannot reliably carrying out, and causes lubrication trouble.Once two-position four-way high-voltage electromagnetic selector valve cannot reliably working, corresponding lubricant housings just can not get lubricating timely and effectively, and in this case, lubricated equipment may produce serious fault or damage.
summary of the invention
The object of this invention is to provide a kind of double electromagnet bi-bit bi-pass high pressure drier oil switch valve and substitute two-position four-way high-voltage electromagnetic selector valve, solve the problems referred to above that in grease concentrating lubricating system, two-position four-way high-voltage electromagnetic selector valve exists in using.
A bi-bit bi-pass high pressure drier oil switch valve, is characterized in that: in structure, by opening valve electromagnet assembly (10), pass valve electromagnet assembly (1), valve body (4), spool (7), Sealing and connecting bolt (8) etc., form.
Described double electromagnet bi-bit bi-pass high pressure drier oil switch valve, opening valve electromagnet assembly (10) and closing valve electromagnet assembly (1) is all to adopt 24V DC electromagnet, by connecting bolt (8), will be opened valve electromagnet assembly (10) and be closed the two ends that valve electromagnet assembly (1) is connected to valve body (4).
Described double electromagnet bi-bit bi-pass high pressure drier oil switch valve, offers oil suction chamber (6) and goes out oil pocket (5) on valve body (4), without oil back chamber, therefore, without laying return line, reduced the cost of grease concentrating lubricating system.
Described double electromagnet bi-bit bi-pass high pressure drier oil switch valve, on spool (7), there are oil guide slot (12) and equally distributed balancing slit (13), (12) two suffered oil pressure opposite sign but equal magnitude in side of oil guide slot under any state, grease to spool (7) to make a concerted effort be zero.
Described double electromagnet bi-bit bi-pass high pressure drier oil switch valve, spool (7) is opened valve events driving force and is provided by opening valve electromagnet assembly (10), spool (7) homing action driving force provides by closing valve electromagnet assembly (1), without Returnning spring, in spool (7) course of action, without overcoming spring force, do work.
Described double electromagnet bi-bit bi-pass high pressure drier oil switch valve, the form that its sealing adopts clearance seal to combine with seal ring sealing, between spool (7) and valve body (4), gap is less than 0.005mm, the length of thread engagement of spool (7) and valve body (4) is greater than 50mm, and seal ring (3) is equipped with at spool (7) two ends.
Its working principle is:
During double electromagnet bi-bit bi-pass high pressure drier oil switch valve init state, close valve electromagnet assembly (1) first electric, close valve striker (2) and promote spool (7) to the limit position that closes valve, guarantee that under original state, oil circuit is closed, after spool (7) puts in place, closing valve electromagnet assembly (1) can power-off, due to spool (7) stress balance, in effect lower valve core (7) position of grease damping, fix.
The principle that double electromagnet bi-bit bi-pass high pressure drier oil switch valve is opened oil circuit is, control system (11) is sent valve opening signal, first close valve electromagnet assembly (1) and guarantee power-off, give again and open valve electromagnet assembly (10) energising, drive valve striker (9) and promote the limit position that spool (7) moves to out valve, oil suction chamber (6) and go out oil pocket (5) conducting oil circuit and open, after spool (7) puts in place, opening valve electromagnet can power-off, in grease damping function lower valve core (7) position, fixes.
Oil circuit process cut out by double electromagnet bi-bit bi-pass high pressure drier oil switch valve and to open oil circuit process contrary, control system (11) is sent pass valve signal, first jockey valve electromagnet assembly (10) is guaranteed power-off, give again and close valve electromagnet assembly (1) energising, close valve striker (2) and promote spool (7) to the limit position that closes valve, thereby by oil suction chamber (6) with go out oil pocket (5) and cut off, after spool (7) puts in place, open the power-off of valve electromagnet, complete the valve work of closing.
Compared with prior art, its advantage is in the present invention:
1, double electromagnet bi-bit bi-pass high pressure drier oil switch valve of the present invention, its valve body (4) is provided with oil suction chamber (6) and goes out oil pocket (5), without oil back chamber, therefore without return line, effectively reduces cost and the complexity of grease concentrating lubricating system.
2, double electromagnet bi-bit bi-pass high pressure drier oil switch valve of the present invention, it is zero that the suffered grease active force of its spool (7) is made a concerted effort, can not produce the under high pressure obstruction to spool (7) two ends of lubricant grease, even if lubricant grease inlet/outlet pressure is all over 50MPa, spool (7) still can complete switch motion reliably.
3, double electromagnet bi-bit bi-pass high pressure drier oil switch valve of the present invention, closing of oil circuit is to provide driving force by closing valve electromagnet assembly (1), therefore without Returnning spring is set, reduce the resistance that in oil circuit opening procedure, spool is subject to, improved the reliability of action.
4, double electromagnet bi-bit bi-pass high pressure drier oil switch valve of the present invention, gets final product power-off after its spool (7) is stable, without for a long time, to electromagnet energising, effectively reduces energy consumption.
Accompanying drawing explanation
Fig. 1: the structural representation of double electromagnet bi-bit bi-pass high pressure drier oil switch valve of the present invention.
Fig. 2: the valve core structure schematic diagram in Fig. 1.
Fig. 3: A partial enlarged drawing in Fig. 1.
In figure: 1-close valve electromagnet assembly, 2-close valve striker, 3-seal ring, 4-valve body, 5-go out oil pocket, 6-oil suction chamber, 7-spool, 8-connecting bolt, 9-drive valve striker, 10-open valve electromagnet assembly, 11-control system, 12-oil guide slot, 13-balancing slit, 14-seal groove.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
Double electromagnet bi-bit bi-pass high pressure drier oil switch valve as shown in Figure 1, closing valve electromagnet assembly (1) and opening valve electromagnet assembly (10) is all to adopt 24V DC electromagnet, close valve electromagnet assembly (1) and open valve electromagnet assembly (10) and by connecting bolt (8), be connected the two ends of valve body (4), spool (7) is arranged in the endoporus of valve body (4), spool (7) and valve body (4) Spielpassung.It is mobile that pass valve electromagnet assembly (1) can promote spool (7) by pass valve striker (2), thereby drive valve; Open valve electromagnet assembly (10) and can promote spool (7) movement by driving valve striker (9), thereby close valve.
Double electromagnet bi-bit bi-pass high pressure drier oil switch valve as shown in Figure 1, opening by opening valve electromagnet assembly (10) of spool (7) provides power, the reset of spool (7) provides power by closing valve electromagnet assembly (1), detailed process is: while driving valve, open valve electromagnet assembly (10) and obtain electric, closing valve electromagnet assembly (1) must not be electric, open valve electromagnet assembly (10) drive and drive valve striker (9), open valve striker (9) promotion spool (7) and move to out valve limit position.Close valve process and to open valve process contrary, close valve electromagnet assembly (1) electric, opening valve electromagnet assembly (10) must not electricity, spool (7) is moved to reseting limit position in the promotion of pass valve striker (2).Because the reset of spool (7) has adopted pass valve electromagnet form, without Returnning spring, therefore drive valve and close electromagnet in valve process and only need overcome grease damping, without Returnning spring resistance, improved reliability.
As shown in Figure 1 or 2, valve body (4) is provided with oil suction chamber (6) and goes out oil pocket (5), spool (7) is provided with oil guide slot (12), spool (7) is when oil circuit closed condition, spool (7) is by oil suction chamber (6) and go out oil pocket (5) partition, spool (7) is when oil circuit open mode, and the oil guide slot (12) on spool (7) is by oil suction chamber (6) and go out oil pocket (5) conducting.
As shown in Fig. 1 or Fig. 3, spool (7) is provided with oil guide slot (12), balancing slit (13) and seal groove (14), by spool (7) and clearance seal and the seal ring of valve body (4), seal to realize the sealing to valve, spool (7) and valve body (4) Spielpassung, its matching gap is less than 0.005mm, length of thread engagement 70mm.Upper oil guide slot (12) both ends of the surface of spool (7) are subject to oil pressure opposite sign but equal magnitude, oil pressure to spool (7) to make a concerted effort be zero, existence due to grease damping, do not having the situation lower valve core (7) of external force can not move, therefore after in driving valve and closing valve process, spool (7) moves to limit position, electromagnet can power-off, and fuel path switch state can remain unchanged.
Claims (4)
1. a double electromagnet bi-bit bi-pass high pressure drier oil switch valve, in structure by opening valve electromagnet assembly (10), close valve electromagnet assembly (1), valve body (4), spool (7), Sealing, the compositions such as control system (11) and connecting bolt (8), it is characterized in that: described pass valve electromagnet assembly (1) and open valve electromagnet assembly (10) and be connected to the two ends of valve body (4) by connecting bolt (8), control system (11) is controlled and is closed valve electromagnet assembly (1) and open valve electromagnet assembly (10) by linking route, on valve body (4), have oil suction chamber (6) and go out oil pocket (5), on spool (7), there are oil guide slot (12) balancing slit (13) and seal groove (14), the mode that valve body (4) adopts clearance seal to combine with seal ring sealing with the sealing of spool (7).
2. double electromagnet bi-bit bi-pass high pressure drier oil switch valve according to claim 1, it is characterized in that: described open the power that valve electromagnet assembly (10) provides out valve, open valve electromagnet assembly (10) and open valve striker (9) band movable valve plug (7) movement by promotion, valve is opened; Described pass valve electromagnet assembly (1) provides the power that closes valve, and without Returnning spring, pass valve electromagnet assembly (1) closes valve striker (2) band movable valve plug (7) by promotion and moves, and valve cuts out.
3. double electromagnet bi-bit bi-pass high pressure drier oil switch valve according to claim 1, it is characterized in that: on described spool (7), have one section of oil guide slot (12), the suffered oil pressure of oil guide slot under any state (12) both ends of the surface is all opposite sign but equal magnitude, it is zero that spool (7) is made a concerted effort by oil pressure, due to without action of reset spring, therefore at electromagnet power-off back valve core (7), made a concerted effort by external force is zero, in grease damping function lower valve core (7) position, remains unchanged.
4. double electromagnet bi-bit bi-pass high pressure drier oil switch valve according to claim 1, it is characterized in that: the form that adopts clearance seal and seal ring sealing to combine between spool (7) and valve body (4) completes sealing, spool (7) and valve body (4) matching gap are not more than 0.005mm, and length of thread engagement is not less than 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310553564.3A CN103574266A (en) | 2013-11-11 | 2013-11-11 | Double-electromagnet two-position-two-way high-pressure dry oil switching valve |
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| CN201310553564.3A CN103574266A (en) | 2013-11-11 | 2013-11-11 | Double-electromagnet two-position-two-way high-pressure dry oil switching valve |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848027A (en) * | 2015-03-16 | 2015-08-19 | 山东理工大学 | High-pressure dry oil lubrication magnetic valve |
| CN106015593A (en) * | 2016-05-19 | 2016-10-12 | 中国第汽车股份有限公司无锡油泵油嘴研究所 | On-off electromagnetic valve for electro-hydraulic variable valve driving mechanism |
| CN108105452A (en) * | 2017-12-11 | 2018-06-01 | 淮南师范学院 | A kind of No leakage agricultural irrigation electromagnetic valve |
| CN108119745A (en) * | 2016-11-30 | 2018-06-05 | 德国斯凯孚润滑油系统有限责任公司 | Detection device and lubricant dispenser |
| CN108119744A (en) * | 2016-11-30 | 2018-06-05 | 德国斯凯孚润滑油系统有限责任公司 | Detection device and lubricant dispenser |
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2013
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| EP0870959A2 (en) * | 1997-04-08 | 1998-10-14 | Wärtsilä NSD Schweiz AG | Solenoid valve for hydraulic fluids |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848027A (en) * | 2015-03-16 | 2015-08-19 | 山东理工大学 | High-pressure dry oil lubrication magnetic valve |
| CN106015593A (en) * | 2016-05-19 | 2016-10-12 | 中国第汽车股份有限公司无锡油泵油嘴研究所 | On-off electromagnetic valve for electro-hydraulic variable valve driving mechanism |
| US10890292B2 (en) | 2016-10-30 | 2021-01-12 | Skf Lubrication Systems Germany Gmbh | Detection device and lubricant distributor |
| CN108119745A (en) * | 2016-11-30 | 2018-06-05 | 德国斯凯孚润滑油系统有限责任公司 | Detection device and lubricant dispenser |
| CN108119744A (en) * | 2016-11-30 | 2018-06-05 | 德国斯凯孚润滑油系统有限责任公司 | Detection device and lubricant dispenser |
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| CN108119744B (en) * | 2016-11-30 | 2021-06-08 | 德国斯凯孚润滑油系统有限责任公司 | Detection device and lubricant distributor |
| CN108119745B (en) * | 2016-11-30 | 2021-06-08 | 德国斯凯孚润滑油系统有限责任公司 | Detection device and lubricant distributor |
| CN108105452A (en) * | 2017-12-11 | 2018-06-01 | 淮南师范学院 | A kind of No leakage agricultural irrigation electromagnetic valve |
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Application publication date: 20140212 |