CN111288155B - Cleaning device and cleaning method for transmission hydraulic system - Google Patents
Cleaning device and cleaning method for transmission hydraulic system Download PDFInfo
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- CN111288155B CN111288155B CN202010197215.2A CN202010197215A CN111288155B CN 111288155 B CN111288155 B CN 111288155B CN 202010197215 A CN202010197215 A CN 202010197215A CN 111288155 B CN111288155 B CN 111288155B
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- inlet
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 112
- 238000004140 cleaning Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims description 11
- 238000005461 lubrication Methods 0.000 claims abstract description 21
- 230000003749 cleanliness Effects 0.000 claims abstract description 20
- 230000001050 lubricating effect Effects 0.000 claims description 23
- 238000001914 filtration Methods 0.000 claims description 11
- 239000003921 oil Substances 0.000 description 48
- 239000010720 hydraulic oil Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 210000002381 plasma Anatomy 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
- F16H57/0404—Lubricant filters
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a cleaning device for a hydraulic system of a transmission, wherein three circulation loops are arranged on the outer side of the transmission, and the first circulation loop mainly improves the cleanliness of a lubrication loop in a CVT of a tractor; the second circulation loop mainly improves the cleanliness of the system loop in the tractor CVT; the third circulation loop primarily improves cleanliness in the main tank, auxiliary tank and rear axle of the tractor CVT and provides a heat exchanger to cool the tractor CVT oil temperature and a cleanliness meter to test the cleanliness of the transmission hydraulic system. The cleaning device for the transmission hydraulic system can meet the cleaning degree lifting work of a tractor CVT and other products, and reduce the faults of a fine filter of the tractor CVT assembly.
Description
Technical Field
The invention belongs to the technical field of plasmas, and particularly relates to a cleaning device and a cleaning method for a hydraulic system of a transmission.
Background
Along with the continuous push-out of intelligent products such as CVT, AT, engineering mechanical transmission and the like of a high-horsepower tractor, the product assembly comprises a hydraulic unit system. The hydraulic unit has the advantages of large power transmission, compact structure, convenient automatic control, capability of realizing stepless speed regulation function of a power system, and the like, but has multiple types, complex structure and high integration level.
Through investigation analysis, it is obtained that the parts and components themselves and particles enter the hydraulic unit in the assembly process, and meanwhile, the conclusion that the particles enter the hydraulic unit in the running-in process can be also generated. In the field test of an actual CVT tractor, the CVT fine filter has frequent blockage alarm faults, so that the tractor cannot work normally, and the operation quality is affected. The difficulty in field maintenance and treatment of the tractor is great, so that a device capable of effectively improving the cleanliness of the hydraulic system of the transmission is needed.
The traditional transmission hydraulic system cleaning device is arranged in the transmission, and Chinese patent with the application number of CN201520518545.1 discloses a wash oil purifying device and a wash oil purifying method for running-in cleaning of a wet cavity of the transmission, wherein the wash oil purifying system is connected with a positioning driving system through a oiling passage and an oil discharging passage to form a loop, two ends of a quantitative oiling system are respectively arranged on the oiling passage and the oil discharging passage, and an oil absorption filter is connected in series with the oil discharging passage. However, the technology still has the defects of low cleaning efficiency, poor equipment universality, poor interchangeability, incapability of meeting the requirements of various speed variators, inconvenient maintenance, high cost and incapability of being freely and flexibly combined.
Disclosure of Invention
The invention aims to solve the problems of low cleaning efficiency and inconvenient maintenance of a traditional transmission hydraulic system cleaning device and provides a cleaning device and a cleaning method for the transmission hydraulic system.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
a cleaning device for a transmission hydraulic system, comprising:
The inlet of the first filter is connected with the outlet of the lubrication device in the transmission main box, the outlet of the first filter is connected with the inlet of the lubrication device in the transmission main box, a first circulation loop is formed by the outlet of the lubrication device, the first filter and the inlet of the lubrication device, and the first circulation loop is arranged outside the transmission main box;
The inlet of the second filter is connected with the outlet of the system device in the main gearbox, the outlet of the second filter is connected with the inlet of the system device in the main gearbox, and a second circulation loop is formed by the outlet of the system device, the second filter and the inlet of the system device and is arranged outside the main gearbox;
The inlet of the third filter is connected with the outlet of the quick-inserting port in the transmission auxiliary box, the outlet of the third filter is connected with the inlet of the quick-inserting port in the transmission rear axle, and a third circulation loop is formed by the outlet of the quick-inserting port in the transmission auxiliary box, the third filter and the inlet of the quick-inserting port in the transmission rear axle and is arranged outside the transmission auxiliary box and the transmission rear axle.
The invention further improves that:
A first valve is arranged on a pipeline between an outlet of the lubricating device and the first filter, a second valve is arranged on a pipeline between an inlet of the lubricating device and the first filter, and a first flowmeter, a first pressure sensor and a first temperature sensor are further arranged on a pipeline between the first filter and the second valve.
A third valve is arranged on a pipeline between an outlet of the system device and the second filter, a fourth valve is arranged on a pipeline between an inlet of the system device and the second filter, and a second flowmeter, a second pressure sensor and a second temperature sensor are also arranged on a pipeline between the second filter and the fourth valve.
A fifth valve is arranged on a pipeline between an outlet of the quick-connection port in the transmission auxiliary box and the third filter, a sixth valve is arranged on a pipeline between an inlet of the quick-connection port in the rear axle of the transmission and the third filter, and a third flowmeter, a third pressure sensor and a third temperature sensor are further arranged on a pipeline between the third filter and the sixth valve.
And a safety valve, an oil pump and a fourth filter are also arranged between the third filter and the third flowmeter.
And the outer side of the third flowmeter is connected with a seventh valve and a cleanliness meter through pipelines.
One interface of the fifth valve is communicated with an outlet of a quick-plug interface in the transmission auxiliary box, the other interface is simultaneously communicated with an inlet of the third filter and the lubricating device, and an eighth valve is arranged on a pipeline between the fifth valve and the inlet of the lubricating device.
The first, second and third heat exchangers are respectively installed on the first, second and third circulation loops.
A cleaning method employing a cleaning device for a transmission hydraulic system, comprising the steps of:
When oil in a transmission lubricating device is cleaned, a first valve is opened, the oil enters a first filter from an outlet of the lubricating device in a transmission main box for filtering, a second valve is opened, and the oil enters the lubricating device in the transmission main box;
When the oil in the transmission system device is cleaned, the third valve is opened, the oil enters the second filter from the system device outlet in the transmission main box for filtering, and then the fourth valve is opened, and the oil enters the system device in the transmission main box;
When the oil in the auxiliary gearbox and the rear axle of the gearbox is cleaned, the fifth valve is opened, the oil enters the third filter from the fast-plug interface outlet in the auxiliary gearbox for filtering, and then the sixth valve is opened, and the oil enters the fast-plug interface inlet of the rear axle of the gearbox.
Compared with the prior art, the invention has the following beneficial effects:
the invention relates to a cleaning device for a hydraulic system of a transmission, which comprises three circulation loops, wherein the first circulation loop is mainly used for improving the cleanliness of a lubrication loop in a CVT of a tractor; the second circulation loop is mainly used for improving the cleanliness of a system loop in the tractor CVT; the third circulation loop is mainly used for improving the cleanliness of the main tank, the auxiliary tank and the rear axle in the tractor CVT, and the cleaning device for the transmission hydraulic system can meet the cleanliness improving work of the tractor CVT and other products and reduce the fault of a fine filter of the tractor CVT assembly.
The invention relates to a cleaning method for a cleaning device of a hydraulic system of a transmission, which is characterized in that an external circulation loop is formed by a filter to filter hydraulic oil in the transmission, meanwhile, the cleaning effect of devices at different parts of the transmission is met, the faults of a fine filter of a CVT assembly of a tractor are reduced, resources are saved, and the cleaning efficiency of the cleaning device is effectively improved.
Further, flow, temperature and pressure data of the three loop may be tested using flow meters, pressure sensors and temperature sensors.
Further, a heat exchanger may be utilized to cool the oil temperature of the transmission hydraulic system.
Further, a cleanliness meter may be used to test the cleanliness of the transmission hydraulic system.
Drawings
FIG. 1 is a schematic diagram of a cleaning apparatus for a transmission hydraulic system of the present invention.
Wherein: 1-a first valve; 2-a first filter; 3-a first flowmeter; 4-a first pressure sensor; 5-a first temperature sensor; 6-a first heat exchanger; 7-a second valve; 8-fourth valve; 9-a second temperature sensor; 10-a second pressure sensor; 11-a second flowmeter; 12-a second filter; 13-a third valve; 14-eighth valve; 15-a fifth valve; 16-a third filter; 17-a safety valve; 18-an oil pump; 19-a fourth filter; 20-seventh valve; 21-a third flowmeter; 22-cleanliness instrument; 23-a third pressure sensor; 24-a third temperature sensor; 25-a third heat exchanger; 26-sixth valve; 27-a transmission main box; 28-variator sub-box; 29-transmission rear axle.
Detailed Description
The invention is further illustrated by the following examples and figures:
As shown in fig. 1, the present embodiment discloses a cleaning device for a hydraulic system of a transmission, comprising a first filter 2, wherein an inlet of the first filter 2 is connected with an outlet of a lubrication device in a main transmission case 27, an outlet of the first filter 2 is connected with an inlet of the lubrication device in the main transmission case 27, a first circulation loop is formed by the outlet of the lubrication device, the first filter 2 and the inlet of the lubrication device, and the first circulation loop is arranged outside the main transmission case 27; the inlet of the second filter 12 is connected with the outlet of the system device in the transmission main box 27, the outlet of the second filter 12 is connected with the inlet of the system device in the transmission main box 27, and a second circulation loop is formed by the outlet of the system device, the second filter 12 and the inlet of the system device and is arranged outside the transmission main box 27; the inlet of the third filter 16 is connected with the outlet of the quick-plug interface in the transmission auxiliary box 28, the outlet of the third filter 16 is connected with the inlet of the quick-plug interface in the transmission rear axle 29, and a third circulation loop is formed by the outlet of the quick-plug interface in the transmission auxiliary box 28, the third filter 16 and the inlet of the quick-plug interface in the transmission rear axle 29 and is arranged outside the transmission auxiliary box 28 and the transmission rear axle 29.
The lubricating device mainly provides power for a forced lubrication system of the transmission, changes lubrication pressure and lubrication flow according to requirements, simultaneously provides a heat dissipation function for oil liquid of the transmission, provides different heat dissipation modes according to the oil temperature, and ensures normal operation of the lubrication system; the cleanliness of the lubrication circuit can be improved, and the pollution resistance of the hydraulic element of the transmission is improved. The system device mainly provides pressure and flow for the transmission in normal operation, ensures high-low gear switching of the main box and the auxiliary box of the transmission, can provide energy for braking action of the rear axle, and ensures driving safety; the cleanliness of the system loop can be improved, and the pollution resistance of the hydraulic element of the transmission is improved.
A first valve 1 is arranged on a pipeline between an outlet of the lubricating device and the first filter 2, a second valve 7 is arranged on a pipeline between an inlet of the lubricating device and the first filter 2, and a first flowmeter 3, a first pressure sensor 4 and a first temperature sensor 5 are also arranged on a pipeline between the first filter 2 and the second valve 7. A third valve 13 is arranged on a pipeline between the outlet of the system device and the second filter 12, a fourth valve 8 is arranged on a pipeline between the inlet of the system device and the second filter 12, and a second flowmeter 11, a second pressure sensor 10 and a second temperature sensor 9 are also arranged on a pipeline between the second filter 12 and the fourth valve 8. A fifth valve 15 is installed on a pipeline between an outlet of the quick-connect port in the transmission auxiliary box 28 and the third filter 16, a sixth valve 26 is installed on a pipeline between an inlet of the quick-connect port in the transmission rear axle 29 and the third filter 16, and a third flowmeter 21, a third pressure sensor 23 and a third temperature sensor 24 are also installed on a pipeline between the third filter 16 and the sixth valve 26. One port of the fifth valve 15 is communicated with an outlet of a quick-connect port in the transmission sub-tank 28, the other port is simultaneously communicated with the third filter 16 and an inlet of the lubrication device, and an eighth valve 14 is installed on a pipe between the fifth valve 15 and the inlet of the lubrication device. A relief valve 17, an oil pump 18, and a fourth filter 19 are also installed between the third filter 16 and the third flowmeter 21. The outside of the third flowmeter 21 is connected with a seventh valve 20 and a cleanliness meter 22 through pipelines.
The first, second and third circulation circuits are respectively provided with a first heat exchanger 6, a second heat exchanger and a third heat exchanger 25.
A cleaning method employing a cleaning device for a transmission hydraulic system, comprising the steps of: when the oil in the transmission lubricating device is cleaned, the first valve 1 is opened, the oil enters the first filter 2 from the lubricating device outlet in the transmission main box 27 for filtering, and then the second valve 7 is opened, and the oil enters the lubricating device in the transmission main box 27; when the oil in the transmission system device is cleaned, the third valve 13 is opened, the oil enters the second filter 12 from the system device outlet in the transmission main box 27 for filtering, and then the fourth valve 8 is opened, and the oil enters the system device in the transmission main box 27; when cleaning the oil in the transmission sub-tank 28 and the transmission rear axle 29, the fifth valve 15 is opened, the oil enters the third filter 16 from the quick-connect port outlet in the transmission sub-tank 28 for filtration, and then the sixth valve 26 is opened, the oil enters the transmission rear axle 29 quick-connect port inlet.
The working principle of the invention is as follows:
When the hydraulic oil in the transmission lubricating device needs to be cleaned, the first valve 1 is opened, the oil enters the first filter 2 from the lubricating device outlet in the transmission main box 27 for filtering, then the flow, the pressure and the temperature values of the oil are measured through the first flowmeter 3, the first pressure sensor 4 and the first temperature sensor 5, the oil is cooled through the first heat exchanger 6, the second valve 7 is finally opened, the oil enters the lubricating device, and the first circulating loop is driven by the oil pump of the puller CVT assembly to form a circulating loop.
When the hydraulic oil in the transmission system device needs to be cleaned, the third valve 13 is opened, the oil enters the second filter 12 from the system device outlet in the transmission main box 27 for filtering, then the flow, the pressure and the temperature values of the oil are measured through the second flowmeter 11, the second pressure sensor 10 and the second temperature sensor 9, finally the fourth valve 8 is opened and enters the system device, and the second circulation loop is driven by the oil pump of the puller CVT assembly to form the circulation loop.
When the hydraulic oil in the transmission auxiliary tank 28 and the transmission rear axle 29 needs to be cleaned, the eighth valve 14 and the fifth valve 15 are opened, the oil is filtered through the third filter, if the pressure is high, the pressure is relieved through the safety valve 17, the oil is filtered through the oil pump 18 and the third filter 16 when the pressure is normal, the oil is filtered through the fourth filter 19, the flow and the cleanliness of the oil are measured through the third flowmeter 21 and the cleanliness meter 22, the pressure and the temperature values of the oil are measured through the third pressure sensor 23, the third temperature sensor 24 and the third heat exchanger 25, heat dissipation is carried out, the sixth valve 26 is opened, the oil enters the transmission rear axle 29, and the third circulation loop is driven by the external oil pump to form a circulation loop. And the requirements on the improvement of the cleanliness of the test piece and the oil product are completed through the three circulation loops.
Claims (4)
1. A cleaning apparatus for a transmission hydraulic system, comprising:
The inlet of the first filter (2) is connected with the outlet of the lubrication device in the transmission main box (27), the outlet of the first filter (2) is connected with the inlet of the lubrication device in the transmission main box (27), and a first circulation loop is formed by the outlet of the lubrication device, the first filter (2) and the inlet of the lubrication device and is arranged outside the transmission main box (27); a first valve (1) is arranged on a pipeline between an outlet of the lubricating device and the first filter (2), a second valve (7) is arranged on a pipeline between an inlet of the lubricating device and the first filter (2), and a first flowmeter (3), a first pressure sensor (4) and a first temperature sensor (5) are also arranged on a pipeline between the first filter (2) and the second valve (7);
The inlet of the second filter (12) is connected with the outlet of the system device in the transmission main box (27), the outlet of the second filter (12) is connected with the inlet of the system device in the transmission main box (27), and a second circulation loop is formed by the outlet of the system device, the second filter (12) and the inlet of the system device and is arranged outside the transmission main box (27); a third valve (13) is arranged on a pipeline between an outlet of the system device and the second filter (12), a fourth valve (8) is arranged on a pipeline between an inlet of the system device and the second filter (12), and a second flowmeter (11), a second pressure sensor (10) and a second temperature sensor (9) are also arranged on a pipeline between the second filter (12) and the fourth valve (8);
The inlet of the third filter (16) is connected with the outlet of the quick-plug interface in the transmission auxiliary box (28), the outlet of the third filter (16) is connected with the inlet of the quick-plug interface in the transmission rear axle (29), a third circulation loop is formed by the outlet of the quick-plug interface in the transmission auxiliary box (28), the third filter (16) and the inlet of the quick-plug interface in the transmission rear axle (29), and the third circulation loop is arranged outside the transmission auxiliary box (28) and the transmission rear axle (29); a fifth valve (15) is arranged on a pipeline between an outlet of the quick-connection port in the transmission auxiliary box (28) and the third filter (16), a sixth valve (26) is arranged on a pipeline between an inlet of the quick-connection port in the transmission rear axle (29) and the third filter (16), and a third flowmeter (21), a third pressure sensor (23) and a third temperature sensor (24) are also arranged on a pipeline between the third filter (16) and the sixth valve (26); one interface of the fifth valve (15) is communicated with an outlet of a quick-plug interface in the transmission auxiliary box (28), the other interface is simultaneously communicated with a third filter (16) and an inlet of the lubricating device, and an eighth valve (14) is arranged on a pipeline between the fifth valve (15) and the inlet of the lubricating device;
The first circulation loop, the second circulation loop and the third circulation loop are respectively provided with a first heat exchanger (6), a second heat exchanger and a third heat exchanger (25).
2. A cleaning device for a transmission hydraulic system according to claim 1, characterized in that a relief valve (17), an oil pump (18) and a fourth filter (19) are also installed between the third filter (16) and the third flowmeter (21).
3. A cleaning device for a transmission hydraulic system according to claim 1, characterized in that the outside of the third flowmeter (21) is connected by means of a pipe to a seventh valve (20) and a cleanliness meter (22).
4. A method of cleaning a hydraulic system for a transmission using the apparatus of claim 1, comprising the steps of:
When oil in a transmission lubricating device is cleaned, a first valve (1) is opened, oil enters a first filter (2) from a lubricating device outlet in a transmission main box (27) for filtering, and then a second valve (7) is opened, and oil enters the lubricating device in the transmission main box (27);
When the oil in the transmission system device is cleaned, the third valve (13) is opened, the oil enters the second filter (12) from the system device outlet in the transmission main box (27) for filtering, and then the fourth valve (8) is opened, and the oil enters the system device in the transmission main box (27);
When cleaning oil in the transmission auxiliary box (28) and the transmission rear axle (29), the fifth valve (15) is opened, the oil enters the third filter (16) from the quick-plug interface outlet in the transmission auxiliary box (28) for filtering, and then the sixth valve (26) is opened, and the oil enters the quick-plug interface inlet of the transmission rear axle (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010197215.2A CN111288155B (en) | 2020-03-19 | 2020-03-19 | Cleaning device and cleaning method for transmission hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010197215.2A CN111288155B (en) | 2020-03-19 | 2020-03-19 | Cleaning device and cleaning method for transmission hydraulic system |
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| Publication Number | Publication Date |
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| CN111288155A CN111288155A (en) | 2020-06-16 |
| CN111288155B true CN111288155B (en) | 2024-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010197215.2A Active CN111288155B (en) | 2020-03-19 | 2020-03-19 | Cleaning device and cleaning method for transmission hydraulic system |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113155450A (en) * | 2021-03-24 | 2021-07-23 | 西安法士特汽车传动有限公司 | Tractor axle box power assembly four-wheel drive loading test bench |
| CN115608684A (en) * | 2022-09-22 | 2023-01-17 | 陕西法士特齿轮有限责任公司 | Oil liquid circulating flushing device and method for transmission assembly |
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| JP3011922B1 (en) * | 1998-08-10 | 2000-02-21 | 株式会社ニックー | Apparatus and method for cleaning oil circulation path of internal combustion engine |
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| CN111288155A (en) | 2020-06-16 |
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