CN103244807A - Intelligent electric-control oil distributor - Google Patents
Intelligent electric-control oil distributor Download PDFInfo
- Publication number
- CN103244807A CN103244807A CN2013101820022A CN201310182002A CN103244807A CN 103244807 A CN103244807 A CN 103244807A CN 2013101820022 A CN2013101820022 A CN 2013101820022A CN 201310182002 A CN201310182002 A CN 201310182002A CN 103244807 A CN103244807 A CN 103244807A
- Authority
- CN
- China
- Prior art keywords
- oil
- valve body
- oil discharge
- discharge passage
- displaced
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The invention relates to an intelligent electric-control oil distributor. The oil distributor is characterized by comprising a valve and a motor. The motor is fixed on the side of the valve, a rotary piston cavity and a quantitative oil discharge piston cavity are opened on the valve, and an oil inlet, an oil outlet I, an oil outlet II, a flow passage hole I, a flow passage hole II, a flow passage hole III and a flow passage hole IIII are further opened on the valve body. A rotary valve spool is arranged in the rotary piston cavity. a valve spool passage, an oil discharge passage I, an oil discharge passage II, an oil discharge outer passage I and an oil discharge outer passage II are opened in the rotary valve spool. A quantitative oil discharge piston is arranged in the quantitative oil discharge piston cavity, and an electric-control transducer device is fixed on one side of the quantitative oil discharge piston cavity. The intelligent electric-control oil distributor has the advantages that the rotary valve spool is high in adaptability to oil impurities and cannot be blocked easily, the oil adding amount of a lubricating point can be adjusted accurately at any time, the oil amount of the lubricating point is accurately controlled, and the service life is long; and the oil distributor can be assembled to be used according to actual conditions, and the practicality is high.
Description
Technical field
The present invention relates to mechanical lubrication equipment applied technical field, relate in particular to a kind of intelligent electric-controlled oil dispenser.
Background technique
In industries such as metallurgy, building materials, mine, generating and large-scale engineering machinery, the dispensing device and the system that generally use more lubricant oil, fat mainly contain following two kinds at present, and 1, single-line type distributing valve and single-line type divide oil system.Its shortcoming: divide in the oil system at single-line type distributing valve and single-line type, as long as wherein there is a lubricating point to stop up, will cause the whole piece lubrication system all to quit work.Under the situation comparatively complicated in system, that lubricating point is more, single-line type distributing valve and single-line type divide oil system to be easy to can't work because of the obstruction of indivedual lubricating points.2, two-wire system distributing valve and two-wire system divide oil system.Can realize realizing in quantitative fuel feeding, the system two oil supply loops, divide oil system to compare the difficult collapse of system with single-line type distributing valve and single-line type, but the separating valve of this system causes the separating valve near apart from oil pump to bear the pressure height easily, and the separating valve far away apart from oil pump bears underpressure.The dynamic sealing point of this system is prone to oil leakage phenomenon than multisystem in addition.
The use solenoid valve that occurs in recent years and electromagnetism are given the lubrication system of oil dispenser in addition, its principle is to adjust the volume read-out of also just having adjusted lubricating point on time of solenoid valve, the shortcoming of this system, more at lubricating point, use solenoid valve also in the more lubrication system, wherein have a solenoid valve to have the normal open fault and will make the grease that system pressure reduces, multithread simultaneously goes out leak out befouling environment.Volume read-out can't accurately be controlled.And the solenoid valve volume is generally bigger, lubrication system need solenoid valve generally little its magnetic force that just causes of smaller, solenoid valve volume is limited, make solenoid valve be easy to generate blocking phenomenon, influence the proper functioning of system.
Summary of the invention
The purpose of this invention is to provide a kind of intelligent electric-controlled oil dispenser, can solve in the prior art, distributor easily card stifled be failure to actuate, seal badly cause that fuel feeding is malfunctioning to be difficult to problem such as control, and compact structure, simply, stable and reliable for performance.
The technical solution used in the present invention is:
Intelligent electric-controlled oil dispenser, comprise valve body and motor, described motor is fixed on the valve body side, have rotary-piston cavity and quantitative fuel-displaced piston cavity on the described valve body, also have filler opening, oil outlet I, oil outlet II, runner hole I, runner hole II, runner hole III and runner hole IIII on the described valve body, described runner hole I and runner hole II are connected, and described runner hole III and runner hole IIII are connected; Be provided with rotary spool in the described rotary-piston cavity, described rotary spool one end is fixedlyed connected with motor output shaft, have valve core channel in the described rotary spool, oil discharge passage I, oil discharge passage II, fuel-displaced external chennel I and fuel-displaced external chennel II, described valve core channel is connected with oil discharge passage I and oil discharge passage II respectively, described oil discharge passage I can be connected when rotary spool rotates simultaneously that fuel-displaced external chennel II can be connected with runner hole III with valve body oil discharge passage I, and the described oil discharge passage II fuel-displaced external chennel I of while that can be connected with valve body oil discharge passage II when rotary spool rotates can be connected with runner hole I.
Be provided with quantitative fuel-displaced piston in the described quantitative fuel-displaced piston cavity, described quantitative fuel-displaced piston cavity one side fixedly has automatically controlled sensor device, described automatically controlled sensing device comprises sensor and sensor holder, described sensor one end is fixed in the sensor cavity of sensor holder, described sensor cavity is communicated with quantitative fuel-displaced piston cavity, and described quantitative fuel-displaced piston one side is fixedly connected with the indicating arm that can go deep into the sensor cavity;
The quantitative fuel-displaced piston cavity side that described quantitative fuel-displaced piston is connected with indicating arm one end has access ramp I and valve body oil discharge passage I, described access ramp I and valve body oil discharge passage I are connected, and described valve body oil discharge passage I can be connected with spool oil discharge passage I when rotary spool rotates and also can be connected with fuel-displaced external chennel I; The quantitative fuel-displaced piston cavity side of the described quantitative fuel-displaced piston the other end has access ramp II and valve body oil discharge passage II, described access ramp II and valve body oil discharge passage II are connected, and described valve body oil discharge passage II can be connected with spool oil discharge passage II when rotary spool rotates and also can be connected with fuel-displaced external chennel II.
Further, the rotary-piston cavity of close motor output shaft one side is provided with set screw and cavity seal ring, and described motor output shaft is fixedlyed connected with rotary spool after passing set screw.
Further, be provided with Y type oil sealing between described quantitative fuel-displaced piston cavity and the automatically controlled sensor device.
Further, have band and plug cock and oily passage between described oil outlet I and the oil outlet II.
More particularly, described and oily passage one side diameter is greater than the opposite side channel diameter, and the less side canal inwall of diameter has screw thread, and the also plug cock in the oily passage is and the whelk silk.
Further, for realizing being used in combination of distributor, have the hole that is connected on the described valve body, the screw rod by passing the hole that is connected between valve body and the valve body and the nut at screw rod two ends are fixed; Also have the oil-feed merge channels on the described valve body, the oil-feed merge channels between valve body and the valve body seals by seal ring.
Advantage of the present invention is: rotary spool is strong to oily impurity adaptability, and it is stifled to be difficult for card, can accurately adjust the lubricating point volume read-out at any time, accurately controls the oil mass of lubricating point, long service life; Can be used in combination according to actual conditions simultaneously, practical.
Description of drawings
Fig. 1,2 and 3 is operation principle assumption diagram of the present invention.
Fig. 4 is side of valve body structural representation of the present invention.
Structural representation when Fig. 5 and 6 is used in combination for the present invention.
Wherein: 1, valve body, 2, motor, 3, the rotary-piston cavity, 4, quantitative fuel-displaced piston cavity, 5, filler opening, 6, oil outlet I, 7, oil outlet II, 8, rotary spool, 9, motor output shaft, 10, valve core channel, 11, oil discharge passage I, 12, oil discharge passage II, 13, quantitative fuel-displaced piston, 14, automatically controlled sensor device, 15, sensor, 16, sensor holder, 17, the sensor cavity, 18, indicating arm, 19, access ramp I, 20, valve body oil discharge passage I, 21, access ramp II, 22, valve body oil discharge passage II, 23, set screw, 24, the cavity seal ring, 25, Y type oil sealing, 26, and oily passage, 27, and whelk silk, 28, the hole that is connected, 29, screw rod, 30, nut, 31, the oil-feed merge channels, 32, seal ring, 33, runner hole I, 34, runner hole II, 35, fuel-displaced external chennel I, 36, fuel-displaced external chennel II, 37, runner hole III, 38, runner hole IIII.
Embodiment
Further specify the present invention with embodiment below, the invention protection content but following embodiment only is used for explaining is anyly made the new application of similar structure all in protection domain of the present invention based on structure of the present invention.
As shown in Figures 1 to 3, intelligent electric-controlled oil dispenser of the present invention, comprise valve body 1 and motor 2, motor 2 is fixed on valve body 1 side, have rotary-piston cavity 3 and quantitative fuel-displaced piston cavity 4 on the valve body 1, also have filler opening 5, oil outlet I6, oil outlet II7 runner hole I33, runner hole II34, runner hole III37 and runner hole IIII38 on the valve body 1, runner hole I33 and runner hole II34 are connected, and runner hole III37 and runner hole IIII38 are connected; Be provided with rotary spool 8 in the rotary-piston cavity 3, rotary spool 8 one ends are fixedlyed connected with motor output shaft 9, more particularly: the rotary-piston cavity 3 near motor output shaft 9 one sides is provided with set screw 23 and cavity seal ring 24, and motor output shaft 9 passes set screw 23 backs fixedlys connected with rotary spool 8; Have valve core channel 10, oil discharge passage I11, oil discharge passage II12, fuel-displaced external chennel I35 and fuel-displaced external chennel II36 in the rotary spool 8, valve core channel 10 is connected with oil discharge passage I11 and oil discharge passage II12 respectively, oil discharge passage I11 can be connected when rotary spool 8 rotates simultaneously that fuel-displaced external chennel II36 can be connected with runner hole III37 with valve body oil discharge passage I20, and oil discharge passage II12 can be connected simultaneously that fuel-displaced external chennel I11 can be connected with runner hole I33 with valve body oil discharge passage II22 when rotary spool 8 rotates;
Be provided with quantitative fuel-displaced piston 13 in the quantitative fuel-displaced piston cavity 4, quantitative fuel-displaced piston cavity 4 one sides fixedly have automatically controlled sensor device 14, automatically controlled sensing device 14 comprises sensor 15 and sensor holder 16, sensor 15 1 ends are fixed in the sensor cavity 17 of sensor holder 16, sensor cavity 17 is communicated with quantitative fuel-displaced piston cavity 4, quantitative fuel-displaced piston 13 1 sides are fixedly connected with the indicating arm 18 that can go deep into sensor cavity 17, more particularly: be provided with Y type oil sealing 25 between quantitative fuel-displaced piston cavity 4 and the automatically controlled sensor device 14; Quantitative fuel-displaced piston cavity 4 sides that quantitative fuel-displaced piston 13 is connected with indicating arm 18 1 ends have access ramp I19 and valve body oil discharge passage I20, access ramp I19 and valve body oil discharge passage I20 are connected, and valve body oil discharge passage I20 can be connected with fuel-displaced external chennel I35 when rotary spool 8 rotates; Quantitative fuel-displaced piston cavity 4 sides of quantitative fuel-displaced piston 13 the other ends have access ramp II21 and valve body oil discharge passage II22, access ramp II21 and valve body oil discharge passage II22 are connected, and valve body oil discharge passage II22 can be connected with fuel-displaced external chennel II36 when rotary spool 8 rotates.
Working principle of the present invention is:
Be an actuation cycle process of the present invention as shown in Figures 1 to 3, in lubricant oil enters to valve core channel 10 on the rotary spool 8 from the filler opening 5 of intelligent electric-controlled oil dispenser, motor output shaft 9 driven rotary spools 8 rotations by motor 2, valve body oil discharge passage I20 and access ramp I19 corresponding in the oil discharge passage I11 of rotary spool 8 and valve body 1 are communicated with, the lubricant oil of band pressure is directly quantitative fuel-displaced piston 13 commutations of effect promotion just, and the lubricant oil of quantitative fuel-displaced piston 13 the other ends in the quantitative fuel-displaced piston cavity 4 is through access ramp II21, valve body oil discharge passage II22, rotary spool 8 fuel-displaced external chennel II36, runner hole III37 and runner hole IIII38 are forced out to oil outlet II7.
When motor output shaft 9 driven rotary spools 8 rotations of motor 2 are spent to 180, valve body oil discharge passage II22 and access ramp II21 corresponding in the oil discharge passage II12 of rotary spool 8 and the valve body 1 are communicated with, in the system band pressure lubrication oil just directly the effect lubricant oil that promotes quantitative fuel-displaced piston 13 the other ends in quantitative fuel-displaced piston 13 commutations, the quantitative fuel-displaced piston cavity 4 be forced out to oil outlet I6 through access ramp I19, valve body oil discharge passage I20, rotary spool 8 fuel-displaced external chennel I35, runner hole I33 and runner hole II34.The indicating arm 18 of fixedlying connected with quantitative fuel-displaced piston 13 gos deep into the extreme position in the sensor cavity 17, and sensor 15 just detects quantitative fuel-displaced piston 13 and indicating arm 18 actuating signals, thereby passes to control system.
As shown in Figure 4, have band and whelk silk 27 and oily passage 26 between oil outlet I6 in the valve body 1 of the present invention and the oil outlet II7, and oily passage 26 1 side diameters are greater than the opposite side channel diameter, the less side canal inwall of diameter has screw thread, and the also plug cock in the oily passage 26 is and whelk silk 27, when this improvement can be implemented in one of them oil outlet and blocking phenomenon occurs, can be by turning on the also whelk silk 27 in the also oily passage 26, make hydraulic oil pass through and oily passage 26 fuel-displaced from another oil outlet, thereby the stifled phenomenon of card can not appear.
All the other structures are with embodiment 1.
As illustrated in Figures 5 and 6, intelligent electric-controlled oil dispenser of the present invention can be used in combination, and concrete can be: have the hole 28 that is connected on the valve body 1, the screw rod 29 by passing the hole 28 that is connected between valve body and the valve body and the nut at screw rod 29 two ends 30 are fixing; Also have oil-feed merge channels 31 on the valve body 1, the oil-feed merge channels 31 between valve body and the valve body seals by seal ring 32.All the other structures are with embodiment 1.
Advantage of the present invention is: rotary spool is strong to oily impurity adaptability, and it is stifled to be difficult for card, can accurately adjust the lubricating point volume read-out at any time, accurately controls the oil mass of lubricating point, long service life; Can be used in combination according to actual conditions simultaneously, practical.
Claims (6)
1. intelligent electric-controlled oil dispenser, it is characterized in that: comprise valve body and motor, described motor is fixed on the valve body side, have rotary-piston cavity and quantitative fuel-displaced piston cavity on the described valve body, also have filler opening, oil outlet I, oil outlet II, runner hole I, runner hole II, runner hole III and runner hole IIII on the described valve body, described runner hole I and runner hole II are connected, and described runner hole III and runner hole IIII are connected; Be provided with rotary spool in the described rotary-piston cavity, described rotary spool one end is fixedlyed connected with motor output shaft, have valve core channel in the described rotary spool, oil discharge passage I, oil discharge passage II, fuel-displaced external chennel I and fuel-displaced external chennel II, described valve core channel is connected with oil discharge passage I and oil discharge passage II respectively, described oil discharge passage I can be connected when rotary spool rotates simultaneously that fuel-displaced external chennel II can be connected with runner hole III with valve body oil discharge passage I, and the described oil discharge passage II fuel-displaced external chennel I of while that can be connected with valve body oil discharge passage II when rotary spool rotates can be connected with runner hole I;
Be provided with quantitative fuel-displaced piston in the described quantitative fuel-displaced piston cavity, described quantitative fuel-displaced piston cavity one side fixedly has automatically controlled sensor device, described automatically controlled sensing device comprises sensor and sensor holder, described sensor one end is fixed in the sensor cavity of sensor holder, described sensor cavity is communicated with quantitative fuel-displaced piston cavity, and described quantitative fuel-displaced piston one side is fixedly connected with the indicating arm that can go deep into the sensor cavity;
The quantitative fuel-displaced piston cavity side that described quantitative fuel-displaced piston is connected with indicating arm one end has access ramp I and valve body oil discharge passage I, described access ramp I and valve body oil discharge passage I are connected, and described valve body oil discharge passage I can be connected with spool oil discharge passage I when rotary spool rotates and also can be connected with fuel-displaced external chennel I; The quantitative fuel-displaced piston cavity side of the described quantitative fuel-displaced piston the other end has access ramp II and valve body oil discharge passage II, described access ramp II and valve body oil discharge passage II are connected, and described valve body oil discharge passage II can be connected with spool oil discharge passage II when rotary spool rotates and also can be connected with fuel-displaced external chennel II.
2. intelligent electric-controlled oil dispenser according to claim 1 is characterized in that: the rotary-piston cavity near motor output shaft one side is provided with set screw and cavity seal ring, and described motor output shaft is fixedlyed connected with rotary spool after passing set screw.
3. intelligent electric-controlled oil dispenser according to claim 1 is characterized in that: be provided with Y type oil sealing between described quantitative fuel-displaced piston cavity and the automatically controlled sensor device.
4. intelligent electric-controlled oil dispenser according to claim 1 is characterized in that: have band and plug cock and oily passage between described oil outlet I and the oil outlet II.
5. intelligent electric-controlled oil dispenser according to claim 4, it is characterized in that: described and oily passage one side diameter is greater than the opposite side channel diameter, and the less side canal inwall of diameter has screw thread, and in the oily passage and plug cock be whelk silk also.
6. intelligent electric-controlled oil dispenser according to claim 1 is characterized in that: have the hole that is connected on the described valve body, the screw rod by passing the hole that is connected between valve body and the valve body and the nut at screw rod two ends are fixed; Also have the oil-feed merge channels on the described valve body, the oil-feed merge channels between valve body and the valve body seals by seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310182002.2A CN103244807B (en) | 2013-05-17 | 2013-05-17 | Intelligent electric-control oil distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310182002.2A CN103244807B (en) | 2013-05-17 | 2013-05-17 | Intelligent electric-control oil distributor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103244807A true CN103244807A (en) | 2013-08-14 |
| CN103244807B CN103244807B (en) | 2015-10-28 |
Family
ID=48924535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310182002.2A Expired - Fee Related CN103244807B (en) | 2013-05-17 | 2013-05-17 | Intelligent electric-control oil distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103244807B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412832A (en) * | 2018-05-15 | 2018-08-17 | 潍坊潍液机械有限公司 | A kind of rotating oil supply device |
| CN108412833A (en) * | 2018-05-15 | 2018-08-17 | 潍坊潍液机械有限公司 | A kind of two-way rotating oil supply device |
| CN109373170A (en) * | 2018-11-30 | 2019-02-22 | 重庆康世德源科技实业有限公司 | A kind of fuel-flow control, monitoring device |
| CN110953470A (en) * | 2018-09-26 | 2020-04-03 | 德国斯凯孚润滑油系统有限责任公司 | Lubricant distributor and cavity lubricating device |
| CN113324162A (en) * | 2021-06-15 | 2021-08-31 | 毕信民 | Intelligent grease distributor and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6494294B1 (en) * | 2000-01-12 | 2002-12-17 | Mikuni Adec Corporation | Lubricating oil supplying device |
| CN101387367A (en) * | 2008-09-11 | 2009-03-18 | 职子立 | Fluid distributing valve, distributing valve combination unit and distributing system using the distributing valve |
| CN201363527Y (en) * | 2009-01-22 | 2009-12-16 | 焦作市通和科技有限责任公司 | Accurate quantitative distribution valve and distribution system employing same |
| CN201611000U (en) * | 2009-05-18 | 2010-10-20 | 陈智虎 | Multi-outlet quantitative fluid distributor with rotary core |
| CN203258345U (en) * | 2013-05-17 | 2013-10-30 | 郭付平 | Intelligent electronic control oil distributor |
-
2013
- 2013-05-17 CN CN201310182002.2A patent/CN103244807B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6494294B1 (en) * | 2000-01-12 | 2002-12-17 | Mikuni Adec Corporation | Lubricating oil supplying device |
| CN101387367A (en) * | 2008-09-11 | 2009-03-18 | 职子立 | Fluid distributing valve, distributing valve combination unit and distributing system using the distributing valve |
| CN201363527Y (en) * | 2009-01-22 | 2009-12-16 | 焦作市通和科技有限责任公司 | Accurate quantitative distribution valve and distribution system employing same |
| CN201611000U (en) * | 2009-05-18 | 2010-10-20 | 陈智虎 | Multi-outlet quantitative fluid distributor with rotary core |
| CN203258345U (en) * | 2013-05-17 | 2013-10-30 | 郭付平 | Intelligent electronic control oil distributor |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412832A (en) * | 2018-05-15 | 2018-08-17 | 潍坊潍液机械有限公司 | A kind of rotating oil supply device |
| CN108412833A (en) * | 2018-05-15 | 2018-08-17 | 潍坊潍液机械有限公司 | A kind of two-way rotating oil supply device |
| CN108412833B (en) * | 2018-05-15 | 2023-06-20 | 潍坊潍液机械有限公司 | Double-circuit rotation oil supply device |
| CN108412832B (en) * | 2018-05-15 | 2023-07-28 | 潍坊潍液机械有限公司 | Rotary oil supply device |
| CN110953470A (en) * | 2018-09-26 | 2020-04-03 | 德国斯凯孚润滑油系统有限责任公司 | Lubricant distributor and cavity lubricating device |
| CN109373170A (en) * | 2018-11-30 | 2019-02-22 | 重庆康世德源科技实业有限公司 | A kind of fuel-flow control, monitoring device |
| CN109373170B (en) * | 2018-11-30 | 2023-11-07 | 重庆康世德源科技实业有限公司 | Oil mass control, monitoring devices |
| CN113324162A (en) * | 2021-06-15 | 2021-08-31 | 毕信民 | Intelligent grease distributor and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103244807B (en) | 2015-10-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103244807A (en) | Intelligent electric-control oil distributor | |
| CN201611000U (en) | Multi-outlet quantitative fluid distributor with rotary core | |
| CN203258345U (en) | Intelligent electronic control oil distributor | |
| CN204042397U (en) | Multiple exit positive displacement grease distributor | |
| CN201100515Y (en) | Pole piston lubrication pump | |
| CN202392124U (en) | Extra-high pressure relief valve | |
| CN103216478B (en) | A kind of digital hydraulic motor | |
| CN104389709A (en) | High-pressure fuel feed pump for high-pressure common rail fuel injection system | |
| CN207761928U (en) | Hydraulic end of plunger pump structure with multi-sealed effect | |
| CN202017791U (en) | Threaded plug-in two-position three-way cone valve type electromagnetic valve | |
| CN107317252B (en) | Switchgear | |
| CN107288872A (en) | A kind of pump and the hydraulic power assembly using the pump | |
| CN205064418U (en) | Motor -driven tribit five -way of cartridge formula switching -over valve | |
| CN101956731B (en) | Hydraulic control device and pressure switch | |
| CN201787303U (en) | Centralized lubricating system | |
| CN203809280U (en) | High pressure pump hydraulic end | |
| CN204828778U (en) | Two tee bend switching -over valves of aqueous medium | |
| CN107448381B (en) | Power device | |
| CN107689304B (en) | A kind of hydraulic actuating mechanism | |
| CN110332171A (en) | A kind of double speed valve and dual-speed hydraulic system | |
| CN102168800B (en) | Dual-point oil supply oil feeder and oil feeder integration | |
| CN105179351B (en) | A kind of motor-driven 3 position-5 way valve of plug-in | |
| CN204062011U (en) | A kind of external underground water draws water and recharges hydraulic dual-purpose valve | |
| CN107293419B (en) | Breaker | |
| CN204611303U (en) | Multiple exit grease distributor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151028 Termination date: 20170517 |