CN102650306A - Vacuum oil pumping circulation filter system - Google Patents
Vacuum oil pumping circulation filter system Download PDFInfo
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- CN102650306A CN102650306A CN201110046396XA CN201110046396A CN102650306A CN 102650306 A CN102650306 A CN 102650306A CN 201110046396X A CN201110046396X A CN 201110046396XA CN 201110046396 A CN201110046396 A CN 201110046396A CN 102650306 A CN102650306 A CN 102650306A
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Abstract
A vacuum oil pumping circulation filter system relates to the technical field of an electrical system of a hydraulic press, and comprises a vacuum oil pumping subsystem (A), an oil tank subsystem (B), a quick oil injection subsystem (C) and an electronic control subsystem (26), wherein the vacuum oil pumping subsystem (A) is connected with the oil tank subsystem (B), the oil tank subsystem (B) is connected with the quick oil injection subsystem (C), and the electronic control subsystem (26) is connected with electronic control contacts in the vacuum oil pumping subsystem (A), the oil tank subsystem (B) and the quick oil injection subsystem (C). The vacuum oil pumping circulation filter system overcomes various defects under the states of the existing technology, can quickly inject oil into an automobile gearbox which is well assembled and to be subjected to running-in, after the running-in is completed, the oil in the box is quickly and thoroughly pumped, so the product quality is ensured, and the process rhythm is greatly compacted.
Description
Technical field:
The present invention relates to hydraulic press electric system technical field, be specifically related to a kind of vacuum oil pumping circulated filter system that is used for the automobile gearbox assembly line.
Background technique:
At present, in automobile gearbox manufacturing enterprise, generally speaking, after product is made assembled, need the special-purpose fluid of gearbox be injected in the case, carry out running-in, can proper functioning to guarantee product.Can produce many metal fragments in the runing condensation procedure, pollute the case inner fluid, so these fluid must be drained before product rolls off the production line.
This operation of pumping together adopts the semi-hand operation traditionally, turns on oil discharge screw, manages gearbox is tilted, and lets waste oil flow out naturally, and the interior waste oil of guard box flows to end as possible.This method effect is not satisfactory, and the part fluid that often still can at the bottom of case, deposit does not drain, and wastes time and energy, and has a strong impact on productive temp.
Manufacturing enterprise carried out process modification afterwards, and the oiling process adopts oil pump feed, and the process of draining the oil adopts the oil pump oil pumping.Though improved productive temp to a certain extent, effect is still undesirable, and main crux is in the case that Residual oil still puts untotally, has a strong impact on quality of product, and the production capacity of factory does not significantly improve yet simultaneously.
Summary of the invention:
The purpose of this invention is to provide a kind of vacuum oil pumping circulated filter system; It overcomes the many disadvantages under the existing state of the art; Can accomplish oiling in the automobile gearbox of treating running-in to assembling fast, and after running-in is accomplished, take out most case inner fluid rapidly, up hill and dale; Guarantee quality of product, significantly compression section beat.
In order to solve the existing problem of background technique; The present invention adopts following technological scheme: it comprises vacuum oil pumping subtense angle, fuel tank subtense angle, quick oiling subtense angle and automatically controlled subtense angle; Vacuum oil pumping subtense angle is connected with the fuel tank subtense angle; The fuel tank subtense angle is connected with quick oiling subtense angle, and the automatically controlled contact that automatically controlled subtense angle and vacuum are pumped in subtense angle, fuel tank subtense angle, the quick oiling subtense angle is connected.
It also comprises the 3rd motor, slippage pump and the 6th solenoid valve, and the slippage pump lower end is connected with the 6th solenoid valve, and slippage pump one side is connected with the 3rd motor, and the 6th solenoid valve lower end is connected to fuel tank through valve, filter respectively.
Described vacuum oil pumping subtense angle uses a vacuum pump, through filter and solenoid valve, links to each other with two liquid containers respectively, communicates with pressure gauge and pressure transducer in addition; Liquid container has a filler opening in addition, is connected with gearbox product on the check table through solenoid valve and filter; Liquid container also has a suction port, through solenoid valve and pressure transducer, connects source of compressed air; Liquid level sensor is housed in the liquid container; The liquid container oil outlet is connected to fuel tank assembly through solenoid valve, one-way valve and filter.
Be divided into two chambeies by dividing plate in the described fuel tank subtense angle fuel tank---oil suction chamber with go out oil pocket; The circulating filtration subsystem is housed, comprises recycle pump, two-bit triplet solenoid valve and oil purifier; The little assembly of having heaters comprises heater and temperature transducer in addition; Also have liquid level sensor and level meter.
Described quick oiling subtense angle uses a gear pump, is connected to the two-bit triplet solenoid valve, communicates with pressure transducer, relief valve and pressure gauge simultaneously; The two-bit triplet solenoid valve connects two oil purifiers respectively; Oil purifier connects the gearbox filler opening on the check table through one-way valve.
Described automatically controlled subtense angle comprises programmable controller (PLC), demonstration/control panel and warning light.The automatically controlled contact of each of system is connected to PLC, controls system-wide action by PLC according to pre-set programs, and sends error message and guard sign in good time, is presented on the display screen of demonstration/control panel, and important warning information can start warning light.
Working principle of the present invention is: during work, the PLC at first solenoid valve of control connection liquid container vacuum port end opens, and starts vacuum pump, and liquid container inside is evacuated to vacuum state, and vacuum pressure can reach 0.5mbar.When the automobile gearbox of assembling completion was come on the verification worktable, operator then started this operation by the rules connecting pipeline.
The oiling subtense angle goes out the oil pocket to pump from fuel tank through gear pump fast; Be sent to the two-bit triplet solenoid valve,, can feed back to PLC through pressure transducer and intervene also outputting alarm information if delivery pressure is too high; Relief valve also can work simultaneously, and the normal back of pressure recovery warning information disappears.The two-bit triplet solenoid valve has connected two cover oil purifiers respectively, in subtense angle, plays the effect that distributes oil circuit.If there is the not smooth build-up of pressure of an oil purifier to rise; The pressure transducer of parallel connection can be given PLC signal feed back with it, and the latter controls the switching-over of two-bit triplet solenoid valve, and control fluid is through another set of clean oil purifier output; While outputting alarm signal, the notifying operation personnel are renew cartridge more.Fluid through oil purifier filters injects the gearbox on the check table.
After the gearbox running-in was accomplished, vacuum oil pumping subtense angle began action.PLC control gearbox fuel outlet end, promptly the solenoid valve of liquid container filler opening end is opened, and gearbox was communicated with the liquid container moment that is in vacuum state, and the case inner fluid injects liquid container rapidly under the effect of air pressure.Through preset certain hour, the Residual oil in the gearbox discharges totally, and the PLC control electromagnetic valve is closed, and liquid container and gearbox are isolated once more.After liquid container received fluid, degree of vacuum reduced in jar, and pressure transducer is given PLC with signal feed back, and the latter controls the vacuum pump action, in jar, forms vacuum again, prepared oil pumping action next time.Along with each oil pumping, the liquid level in the liquid container constantly raises, when liquid level reaches the predefined value of liquid level sensor; The latter feeds back signal to PLC; PLC controls some solenoid valves and opens, and is communicated with compressed gas source and the liquid container of having filled, and through powerful air pressure the jar inner fluid is discharged into the fuel tank subtense angle; PLC will control another set of still empty liquid container work when pumping simultaneously next time.
Fluid after filter flows back to fuel tank, at first gets into oil suction chamber from liquid container.The circulating filtration subsystem is constantly pumped from oil suction chamber through recycle pump, filters through filter and imports out oil pocket.This filter is identical with filter in the quick oiling subtense angle, also is the backup design, and the not smooth words of filter can automatically switch to another, guarantee system's continuous firing.Under the continuous effect of circulating filtration subsystem, the fluid in the fuel tank can keep certain turbidity test, filter output once more via quick oiling subtense angle after, can guarantee to reach user-defined turbidity test standard.In addition,, heating sub-system is housed also in the fuel tank subtense angle, can heats, cut off heater after reaching temperature requirement, guarantee that output fluid is in the temperature range of regulation the case inner fluid because the used fluid of gearbox has certain temperature requirement.
The invention has the beneficial effects as follows:
1, formed product with compact structure, floor space is very little.
2, compared with prior art, on the basis that does not increase manufacturing enterprise on-the-spot occupation of land space, thoroughly solve a difficult problem that runs in the original production process, realized the automation mechanized operation of gearbox running-in operation simultaneously.
3, not only improved the quality of product of gearbox, also compressed productive temp, make this operation the beat maximum compression 83%, promoted the production capacity of enterprise greatly, also practiced thrift quite a few human resources for manufacturing enterprise.
Description of drawings:
Fig. 1 is a systematic schematic diagram of the present invention,
Fig. 2 is product structure figure of the present invention,
Fig. 3 is the plan view of Fig. 2,
Fig. 4 be the K of Fig. 3 to structural representation,
Fig. 5 is an electro-pneumatic tabulation of the present invention.
Embodiment:
With reference to Fig. 1-5; This embodiment adopts following technological scheme: it comprises vacuum oil pumping subtense angle A, fuel tank subtense angle B, quick oiling subtense angle C and automatically controlled subtense angle 26; Vacuum oil pumping subtense angle A is connected with fuel tank subtense angle B; Fuel tank subtense angle B is connected with quick oiling subtense angle C, and the automatically controlled contact that automatically controlled subtense angle 26 and vacuum are pumped among subtense angle A, fuel tank subtense angle B, the quick oiling subtense angle C is connected.
It also comprises the 3rd motor 31, slippage pump 32 and the 6th solenoid valve 36, and slippage pump 32 lower ends are connected with the 6th solenoid valve 36, and slippage pump 32 1 sides are connected with the 3rd motor 31, the six solenoid valves 36 lower ends and are connected to fuel tank 27 through valve, filter respectively.
Described vacuum oil pumping subtense angle A comprises first filter 15, first solenoid valve 16, second solenoid valve 17, liquid container 18, second liquid level sensor 19, second pressure transducer 20, pressure vacuum gauge 21, the 3rd solenoid valve 24, vacuum pump 25, the 4th solenoid valve 28, one-way valve 29, second filter 30 and the 5th solenoid valve 34; Vacuum pump 25 links to each other with two liquid containers 18 respectively with the 4th solenoid valve 28 through filter, communicates with the pressure vacuum gauge 21 and second pressure transducer 20 in addition; Liquid container 18 is provided with a filler opening, is connected with gearbox product on the check table 35 through second solenoid valve 17 and second filter 30; Liquid container 18 is provided with a suction port, handles three linked piece 23 and connects source of compressed air through the 5th solenoid valve 34, the 3rd pressure transducer 22, source of the gas; Second liquid level sensor 19 is housed in the liquid container 18; The oil outlet of liquid container 18 lower ends is connected to the fuel tank assembly among the fuel tank subtense angle B through first solenoid valve 16, one-way valve 29 and first filter 15.
Described fuel tank subtense angle B comprises level meter 1, air-strainer 2, two-bit triplet solenoid valve 5, heater 9, recycle pump 10, temperature transducer 11, first motor 12, second oil purifier 13, first liquid level sensor 14 and fuel tank 27; Fuel tank 27 arranged outside have level meter 1, and its upper end and inside are respectively arranged with air-strainer 2, first liquid level sensor 14; Fuel tank 27 inside are connected with temperature transducer 11 and heater 9 respectively, and fuel tank 27 is divided into oil suction chamber and is gone out oil pocket by the dividing plate on heater 9 right sides; The circulating filtration subsystem of being made up of recycle pump 10, two-bit triplet solenoid valve 5 and second oil purifier 13 is housed; Recycle pump 10 1 sides are provided with first motor 12; And recycle pump 10 lower ends are connected to fuel tank 27 inside in heater 9 left sides; Recycle pump 10 upper ends are connected to two-bit triplet solenoid valve 5, and two-bit triplet solenoid valve 5 upper ends connect two group of second oil purifier, 13, the second oil purifiers, 13 upper ends respectively and are connected in the fuel tank 27 on dividing plate right side.
Described quick oiling subtense angle C comprises first pressure transducer 3, pressure gauge 4, two-bit triplet ball valve 5, first oil purifier 6, oil feed pump 7, relief valve 8 and second motor 33; Oil feed pump 7 one sides are connected with second motor 33; And oil feed pump 7 lower ends are connected to fuel tank 27 inside on heater 9 right sides; Oil feed pump 7 tops are connected with relief valve 8, first pressure transducer 3, pressure gauge 4, two-bit triplet ball valve 5; The other end of relief valve 8 is connected to fuel tank 27, and two-bit triplet ball valve 5 tops connect two group of first oil purifier, 6, the first oil purifiers 6 and connect the gearbox filler opening on the check table 35 through one-way valve.
Described automatically controlled subtense angle 26 comprises programmable controller (PLC), demonstration/control panel and warning light.The automatically controlled contact of each of system is connected to PLC, controls system-wide action by PLC according to pre-set programs, and sends error message and guard sign in good time, is presented on the display screen of demonstration/control panel, and important warning information can start warning light.
The working principle of this embodiment is: after each part is seated, connect oil circuit, after programming finished by the logic connecting circuit and in PLC, system can start working.Its concrete workflow is following: second pressure transducer 20 detects degree of vacuum in the liquid container 18 when not enough, feeds back to automatically controlled subtense angle 26, and PLC wherein controls the 4th solenoid valve 28 and opens, and vacuum pump 25 starts, with being evacuated in the liquid container 18.
Settle on check table when the gearbox of treating running-in to finish, and after connecting upper pipeline, oil feed pump 7 starts, and the fluid in the fuel tank 27 are taken out outward.If overpressure in the pipeline, first pressure transducer 3 can send signal to PLC, and relief valve 8 also can move the pressure in the equalizing line simultaneously; After pressure was normal, guard sign disappeared.Operator also can see the pressure of oiling in the pipeline through pressure gauge 4.
Fluid flows to first oil purifier 6 through two-bit triplet ball valve 5, if first oil purifier 6 has accumulated considerable dirt because the operating time is long; And caused oil not smooth; Pressure transducer W8 can control 5 switching-overs of two-bit triplet ball valve for PLC, the latter signal feed back, with fluid another oil purifier that leads; The assurance system can continuous firing, and can need not safeguard and shut down because of an oil purifier.
Through behind the oil purifier, fluid injects gearbox, and gearbox begins running-in.
After running-in finished, automatically controlled subtense angle 26 controls second solenoid valve 17 was opened, and the gearbox inner fluid under powerful vacuum pressure effect, injects liquid container 18 through second filter 30 and second solenoid valve 17 rapidly.Through certain Preset Time, after the fluid in the gearbox drained, second solenoid valve 17 cut out, and gearbox and liquid container recover mutual state of isolation.
Through the oil pumping action; Degree of vacuum in the liquid container 18 decrease, and the reading of degree of vacuum can be read on pressure vacuum gauge 21 simultaneously, and second pressure transducer 20 feeds back to PLC with testing signal; The latter controls the 4th solenoid valve 28 and opens; Vacuum pump 25 starts, and the degree of vacuum in the raising liquid container 18 is to predefined value, for oil pumping is next time prepared.
When the liquid level in the liquid container 18 reach a certain height; Second liquid level sensor 19 is given PLC with signal feed back, and the latter controls the 5th solenoid valve 34 and first solenoid valve 16 is opened, and pressurized air is handled three linked piece 23 and the 3rd pressure transducer 22 entering liquid containers 18 through source of the gas; Fluid is wherein extruded; Through second solenoid valve 17 and one-way valve 29, and after 15 coarse filtrations of first filter, enter the oil suction chamber of fuel tank 27.
In the fuel tank 27, recycle pump 10 is moving always, and the fluid suction filter of oil suction chamber is carried out middle filtration.The design of filter assemblies is identical with filter among the quick oiling subtense angle C, also is the backup design, and the not smooth words of filter can automatically switch to another, guarantee system's continuous firing.After filtering in the process, the fluid in the fuel tank 27 also guarantee certain turbidity test, are filtered through essence behind the quick oiling subtense angle of second motor, the 33 suction C then, just can reach the turbidity test requirement of gearbox fluid fully.
In addition, among the fuel tank subtense angle B closed loop temperature control system is installed also, to reach the temperature requirement of gear box oil.Temperature transducer 11 continues the temperature of monitoring fuel tank 27 inner fluids, and feeds back to PLC.If be lower than predefined value, PLC control heater 9 starts, and fluid is heated; If be higher than predefined value, then heater 9 is cut off.Like this, just can guarantee in the warm temperature range of always stipulating of oil.
The beneficial effect of this embodiment is:
1, formed product with compact structure, floor space is very little.
2, compared with prior art, on the basis that does not increase manufacturing enterprise on-the-spot occupation of land space, thoroughly solve a difficult problem that runs in the original production process, realized the automation mechanized operation of gearbox running-in operation simultaneously.
3, not only improved the quality of product of gearbox, also compressed productive temp, make this operation the beat maximum compression 83%, promoted the production capacity of enterprise greatly, also practiced thrift quite a few human resources for manufacturing enterprise.
Claims (6)
1. vacuum oil pumping circulated filter system; It is characterized in that it comprises vacuum oil pumping subtense angle (A), fuel tank subtense angle (B), quick oiling subtense angle (C) and automatically controlled subtense angle (26); Vacuum oil pumping subtense angle (A) is connected with fuel tank subtense angle (B); Fuel tank subtense angle (B) is connected with quick oiling subtense angle (C), and the automatically controlled contact that automatically controlled subtense angle (26) and vacuum are pumped in subtense angle (A), fuel tank subtense angle (B), the quick oiling subtense angle (C) is connected.
2. vacuum oil pumping circulated filter system according to claim 1; It is characterized in that described vacuum oil pumping subtense angle (A) comprises first filter (15), first solenoid valve (16), second solenoid valve (17), liquid container (18), second liquid level sensor (19), second pressure transducer (20), pressure vacuum gauge (21), the 3rd solenoid valve (24), vacuum pump (25), the 4th solenoid valve (28), one-way valve (29), second filter (30) and the 5th solenoid valve (34); Vacuum pump (25) links to each other with two liquid containers (18) respectively with the 4th solenoid valve (28) through filter, communicates with pressure vacuum gauge (21) and second pressure transducer (20) in addition; Liquid container (18) is provided with a filler opening, is connected with gearbox product on the check table (35) through second solenoid valve (17) and second filter (30); Liquid container (18) is provided with a suction port, handles three linked piece (23) through the 5th solenoid valve (34), the 3rd pressure transducer (22), source of the gas and connects source of compressed air; Second liquid level sensor (19) is housed in the liquid container (18); The oil outlet of liquid container (18) lower end is connected to the fuel tank assembly in the fuel tank subtense angle (B) through first solenoid valve (16), one-way valve (29) and first filter (15).
3. vacuum oil pumping circulated filter system according to claim 1; It is characterized in that described fuel tank subtense angle (B) comprises level meter (1), air-strainer (2), two-bit triplet solenoid valve (5), heater (9), recycle pump (10), temperature transducer (11), first motor (12), second oil purifier (13), first liquid level sensor (14) and fuel tank (27); Fuel tank (27) arranged outside has level meter (1), and its upper end and inside are respectively arranged with air-strainer (2), first liquid level sensor (14); Fuel tank (27) inside is connected with temperature transducer (11) and heater (9) respectively, and fuel tank (27) is divided into oil suction chamber and is gone out oil pocket by the dividing plate on heater (9) right side; The circulating filtration subsystem of being made up of recycle pump (10), two-bit triplet solenoid valve (5) and second oil purifier (13) is housed; Recycle pump (10) one sides are provided with first motor (12); And recycle pump (10) lower end is connected to fuel tank (27) inside in heater (9) left side; Recycle pump (10) upper end is connected to two-bit triplet solenoid valve (5), and two-bit triplet solenoid valve (5) upper end connects two group of second oil purifier (13) respectively, and second oil purifier (13) upper end is connected in the fuel tank (27) on dividing plate right side.
4. vacuum oil pumping circulated filter system according to claim 1; It is characterized in that described quick oiling subtense angle (C) comprises first pressure transducer (3), pressure gauge (4), two-bit triplet ball valve (5), first oil purifier (6), oil feed pump (7), relief valve (8) and second motor (33); Oil feed pump (7) one sides are connected with second motor (33); And oil feed pump (7) lower end is connected to fuel tank (27) inside on heater (9) right side; Oil feed pump (7) top is connected with relief valve (8), first pressure transducer (3), pressure gauge (4), two-bit triplet ball valve (5); The other end of relief valve (8) is connected to fuel tank (27), and two-bit triplet ball valve (5) top connects two group of first oil purifier (6), and first oil purifier (6) connects the gearbox filler opening on the check table (35) through one-way valve.
5. vacuum oil pumping circulated filter system according to claim 1; It is characterized in that described automatically controlled subtense angle (26) comprises PLC, demonstration/control panel and warning light; The automatically controlled contact of each of system is connected to PLC, controls system-wide action by PLC according to pre-set programs, and sends error message and guard sign in good time; Be presented on the display screen of demonstration/control panel, important warning information can start warning light.
6. vacuum oil pumping circulated filter system according to claim 1; It is characterized in that described circulated filter system also comprises the 3rd motor (31), slippage pump (32) and the 6th solenoid valve (36); Slippage pump (32) lower end is connected with the 6th solenoid valve (36); And slippage pump (32) one sides are connected with the 3rd motor (31), and the 6th solenoid valve (36) lower end is connected to fuel tank (27) through valve, filter respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110046396XA CN102650306A (en) | 2011-02-25 | 2011-02-25 | Vacuum oil pumping circulation filter system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110046396XA CN102650306A (en) | 2011-02-25 | 2011-02-25 | Vacuum oil pumping circulation filter system |
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| CN102650306A true CN102650306A (en) | 2012-08-29 |
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| CN201110046396XA Pending CN102650306A (en) | 2011-02-25 | 2011-02-25 | Vacuum oil pumping circulation filter system |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817883A (en) * | 2012-09-11 | 2012-12-12 | 浙江大学 | Multi-functional special oiling device for deep-sea hydraulic system |
| CN102996579A (en) * | 2012-12-07 | 2013-03-27 | 牛继业 | Automatic hydraulic oil filtering system |
| CN103758828A (en) * | 2014-01-23 | 2014-04-30 | 上海深拓液压技术有限公司 | Dialysis maintenance device |
| CN104061211A (en) * | 2014-06-17 | 2014-09-24 | 程龙凤 | Hydraulic oil vacuum filter |
| CN105864114A (en) * | 2016-06-16 | 2016-08-17 | 碎得机械(北京)有限公司 | Shear type crusher hydraulic station |
| TWI674209B (en) * | 2017-07-24 | 2019-10-11 | 康得倫事業有限公司 | Oil injector having oil collecting mechanism |
| CN111453685A (en) * | 2020-01-22 | 2020-07-28 | 上海汽车集团股份有限公司 | Device and method for automatically replacing engine oil |
| CN113983152A (en) * | 2021-12-27 | 2022-01-28 | 四川诚邦浩然测控技术有限公司 | Gearbox filling oil circulating equipment |
| CN114042711A (en) * | 2021-09-26 | 2022-02-15 | 广西科技大学 | Pre-lubricating and cleaning device for automatic gearbox of automobile |
| CN115898856A (en) * | 2022-11-17 | 2023-04-04 | 无锡市朗迪测控技术有限公司 | Oil pumping and injecting device and control method |
| CN116104674A (en) * | 2023-02-28 | 2023-05-12 | 中国长江电力股份有限公司 | Integrated device and method for supplementing, detecting and filtering oil of hydroelectric generating set |
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| CN201934427U (en) * | 2011-02-25 | 2011-08-17 | 上海液力液压机电制造有限公司 | Vacuum oil-pumping circulation and filtering system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817883A (en) * | 2012-09-11 | 2012-12-12 | 浙江大学 | Multi-functional special oiling device for deep-sea hydraulic system |
| CN102817883B (en) * | 2012-09-11 | 2014-12-17 | 浙江大学 | Multi-functional special oiling device for deep-sea hydraulic system |
| CN102996579A (en) * | 2012-12-07 | 2013-03-27 | 牛继业 | Automatic hydraulic oil filtering system |
| CN103758828A (en) * | 2014-01-23 | 2014-04-30 | 上海深拓液压技术有限公司 | Dialysis maintenance device |
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| CN105864114A (en) * | 2016-06-16 | 2016-08-17 | 碎得机械(北京)有限公司 | Shear type crusher hydraulic station |
| TWI674209B (en) * | 2017-07-24 | 2019-10-11 | 康得倫事業有限公司 | Oil injector having oil collecting mechanism |
| CN111453685A (en) * | 2020-01-22 | 2020-07-28 | 上海汽车集团股份有限公司 | Device and method for automatically replacing engine oil |
| CN114042711A (en) * | 2021-09-26 | 2022-02-15 | 广西科技大学 | Pre-lubricating and cleaning device for automatic gearbox of automobile |
| CN113983152A (en) * | 2021-12-27 | 2022-01-28 | 四川诚邦浩然测控技术有限公司 | Gearbox filling oil circulating equipment |
| CN113983152B (en) * | 2021-12-27 | 2022-03-25 | 四川诚邦浩然测控技术有限公司 | Gearbox filling oil circulating equipment |
| CN115898856A (en) * | 2022-11-17 | 2023-04-04 | 无锡市朗迪测控技术有限公司 | Oil pumping and injecting device and control method |
| CN115898856B (en) * | 2022-11-17 | 2023-08-11 | 无锡市朗迪测控技术有限公司 | Oil pumping and filling device and control method |
| CN116104674A (en) * | 2023-02-28 | 2023-05-12 | 中国长江电力股份有限公司 | Integrated device and method for supplementing, detecting and filtering oil of hydroelectric generating set |
| CN116104674B (en) * | 2023-02-28 | 2024-01-12 | 中国长江电力股份有限公司 | Integrated device and method for supplementing, detecting and filtering oil of hydroelectric generating set |
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Application publication date: 20120829 |