CN111256770A - Multi-oil product displacement lubricating oil flow and pressurizing tester - Google Patents
Multi-oil product displacement lubricating oil flow and pressurizing tester Download PDFInfo
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- CN111256770A CN111256770A CN202010075827.4A CN202010075827A CN111256770A CN 111256770 A CN111256770 A CN 111256770A CN 202010075827 A CN202010075827 A CN 202010075827A CN 111256770 A CN111256770 A CN 111256770A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0228—Low temperature; Cooling means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/023—Pressure
Abstract
Many oils replace lubricating oil flow, suppress the tester, belong to the lubricating oil test technical field. The multi-oil replacement lubricating oil flow and pressing tester can automatically clean an oil way and automatically replace oil products. The inlet end of the oil-well pump is communicated with a test oil tank of a test pressure control system through a first pipeline, the outlet end of the oil-well pump is communicated with a first oil tank of an oil product, a second oil tank of the oil product and a third oil tank of the oil product respectively, the inlet end and a compressed air source of the oiling pump are equally communicated with the test oil tank of the test pressure control system through a second pipeline and a third pipeline respectively, the outlet end of the oiling pump is communicated with the first oil tank of the oil product, the second oil tank of the oil product and the third oil tank of the oil product respectively, and the fourth pipeline is communicated with. The oil-cleaning device can realize automatic oil product replacement, can clean oil paths thoroughly and automatically, and can replace multiple machines.
Description
Technical Field
The invention belongs to the technical field of lubricating oil tests, and particularly relates to a multi-oil displacement lubricating oil flow and pressure tester.
Background
In today's society, oil jets have long been used in various areas of the mechanical industry. With the development of the machine industry, higher requirements are put on the lubrication inside the machine. Therefore, the manufacturing and testing of the grease nozzle are required to be more strict and accurate. At the present stage, the types of lubricating oil are more, and when an oil product is replaced in a traditional single oil tank tester for testing, residual oil in a pipeline is not thoroughly cleaned, so that oil mixing is easily caused, and the test data is inaccurate; moreover, manual operation is needed for oil change every time, so that the labor intensity is high; if a plurality of testers are arranged to carry out different tests, the cost is higher. Therefore, a test device which can automatically replace oil products and can automatically clean oil paths thoroughly is urgently needed.
Disclosure of Invention
The invention aims to: the multi-oil replacement lubricating oil flow and pressing tester capable of automatically cleaning an oil way and automatically replacing an oil product is provided.
The technical scheme adopted by the invention is as follows: the multi-oil product displacement lubricating oil flow and pressing tester comprises an oil injection pump, an oil well pump, an oil product I oil tank, an oil product II oil tank, an oil product III oil tank, a pipeline I, a pipeline II, a pipeline III, a pipeline IV and a test pressure control system;
the inlet end of the oil pump is communicated with a test oil tank of the test pressure control system through a first pipeline, the outlet end of the oil pump is respectively communicated with an oil product first oil tank, an oil product second oil tank and an oil product third oil tank,
the inlet end and the compressed air source of the oil injection pump are respectively communicated with a test oil tank of the test pressure control system through a second pipeline and a third pipeline, the outlet end of the oil injection pump is respectively communicated with a first oil tank of oil products, a second oil tank of oil products and a third oil tank of oil products,
and the fourth pipeline is respectively communicated with the first pipeline, the second oil tank and the third oil tank.
The invention has the beneficial effects that:
the oil-cleaning device can realize automatic oil product replacement, can clean oil paths thoroughly and automatically, and can replace multiple machines. The invention has simple structure and convenient operation, can effectively ensure the product quality, save the cost, improve the production efficiency and reduce the labor intensity.
Drawings
FIG. 1 is a schematic diagram of the test of the present invention;
FIG. 2 is a schematic diagram of the oil displacement process of the present invention;
wherein: 1-valve one; 2-valve two; 3-valve III; 4, a valve IV; 5-valve five; 6-valve six; 7-valve seven; 8-eighth valve; 9-valve nine; 10-valve ten; 11-an oil injection pump; 12-an oil well pump; 13-oil one tank; 14-oil product two oil tank; 15-oil three-oil tank; 16-test fuel tank; 17-water coolers; 18-water-cooled circulation system pump; 19-an oil absorption filter; 20-manual valves; 21-a low-pressure booster pump; 22-a first overflow valve; 23-filtering the fine oil I; 24-ball valve; 25-a manual coarse adjustment valve; 26-a surge tank; 27-oil filtration; 28-servo control valve; 29-manual fine adjustment valve; 30-mass flow meter; 31-pressure gauge one; 32-a second manual control valve; 33-high pressure booster pump; 34-a second overflow valve; 35-a one-way valve; 36-fine oil filtration II; 37-pressure gauge two; 38-line one; 39-line two; 40-pipeline III; 41-pipeline four; 42-Branch one; 43-branch two; 44-return line; 45-manual control valve one; 46-valve zero; 47-test pressure control system; 48-oil supply line one; 49-oil supply line two; 50-circulating system.
Detailed Description
As shown in fig. 1 and 2, the multi-oil displacement lubricating oil flow and pressure tester includes an oil injection pump 11, an oil well pump 12, a first oil tank 13, a second oil tank 14, a third oil tank 15, a first pipeline 38, a second pipeline 39, a third pipeline 40, a fourth pipeline 41 and a test pressure control system 47;
the inlet end of the oil pump 12 is communicated with a test oil tank of a test pressure control system 47 through a first pipeline 38, the outlet end of the oil pump 12 is respectively communicated with an oil product first oil tank 13, an oil product second oil tank 14 and an oil product third oil tank 15,
the inlet end and the compressed air source of the oil injection pump 11 are respectively communicated with a test oil tank 16 of a test pressure control system 47 through a second pipeline 39 and a third pipeline 40, the outlet end of the oil injection pump 11 is respectively communicated with a first oil product oil tank 13, a second oil product oil tank 14 and a third oil product oil tank 15,
the fourth pipeline 41 is respectively communicated with the first pipeline 38, the second oil tank 14 and the third oil tank 15.
And a nine 9 valve is arranged on the third pipeline 40, a ten 10 valve is arranged on the second pipeline 39, and an eight 8 valve is arranged on the pipeline through which the compressed air source is communicated with the second pipeline 39 and the third pipeline 40.
A second valve 2 is arranged on a pipeline between the oil well pump 12 and the first oil tank 13, a third valve 3 is arranged on a pipeline between the oil well pump 12 and the second oil tank 14, and a fourth valve 4 is arranged on a pipeline between the oil well pump 12 and the third oil tank 15.
And a fifth valve 5 is arranged on the pipeline between the oil injection pump 11 and the first oil tank 13, a sixth valve 6 is arranged on the pipeline between the oil injection pump 11 and the second oil tank 14, and a seventh valve 7 is arranged on the pipeline between the oil injection pump 11 and the third oil tank 15.
And a first valve 1 is arranged on the fourth pipeline 41.
Experimental pressure control system 47 is including experimental oil tank 16, water chiller 17, water-cooling circulation system pump 18, oil absorption filter 19, supply oil pipe way 48 and supply oil pipe way two 49, the exit end and the oil-well pump 12 intercommunication of pipeline 38, pipeline 38 entry end is through branch road one 42 and two 43 and experimental oil tank 16 intercommunications of branch road, water chiller 17 and zero 46 of valve are installed on branch road two 43, water-cooling circulation system pump 18 sets up between experimental oil tank 16 and two 39 pipelines, oil in the experimental oil tank 16 flows into supply oil pipe way 48 and supply oil pipe way two 49 through oil absorption filter 19.
The manual valve 20, the low-pressure booster pump 21, the fine oil filter 23, the ball valve 24, the surge tank 26, the oil filter 27, the servo control valve 28, the pressure gauge 31 and the two mass flowmeters 30 which are arranged in parallel are sequentially arranged on the oil supply pipeline 48 from the oil inlet end to the oil outlet end, the overflow valve 22 is arranged on the pipeline three 40, the pipeline three 40 is communicated with the oil supply pipeline 48, the oil return pipeline 44 is arranged between the oil supply pipeline 48 and the test oil tank 16, and the manual rough adjusting valve 25 and the manual fine adjusting valve 29 are arranged on the oil return pipeline 44 in parallel.
The oil supply pipeline II 48 is sequentially provided with a manual control valve I45, a high-pressure booster pump 33, a one-way valve 35, an inlet end of the loop I, a fine oil filter II 36, an inlet end of the loop II and a pressure gauge II 37 from an oil inlet end to an oil outlet end; and a second manual control valve 32 is installed on the first loop, a second overflow valve 34 is installed on the second loop, and the outlet end of the first loop and the outlet end of the second loop are both communicated with the test oil tank 16.
The working method comprises the following steps: the tester pressure control system 47 is an oil supply connected to the product. The low-pressure oil way (a first oil supply pipeline 48) is used for flow tests; and the high-pressure oil path (the second oil supply pipeline 49) is used for a compression test.
When an oil supply pipeline I48 is adopted for flow test, pressure is provided by a low-pressure booster pump 21, an overflow valve I22 is used for preliminarily controlling output pressure, oil is stable in pressure when flowing through a pressure stabilizing tank 25, a servo control valve 28, a mass flowmeter 30 and a pressure gauge I31 are used for achieving an oil outlet, and the oil is conveyed to a part. When the oil passes through the first pressure gauge 31, the pressure measured by the first pressure gauge 31 is compared with the pressure set by the operator by a computer, and the result is fed back to the servo control valve 28 to automatically adjust the pressure, or manually adjust the pressure by the manual coarse adjusting valve 25 and the manual fine adjusting valve 29 to achieve closed-loop control. After the pressure is stable, the equipment automatically measures the oil passing through the mass flow meter 30 according to the test time set by an operator, and finally obtains the flow value of the part.
When the oil supply pipeline II 49 is used for pressure test, the high-pressure booster pump 33 provides pressure, the pressure is controlled through the overflow valve II 34, and finally high pressure is output. The oil circuit is used for pressure test, no liquid flows in the test process, the pressure is stable, and secondary adjustment is not needed; because the test pressure is higher, the one-way valve 35 is arranged on the pipeline, and after the test is finished, the function of protecting the device is realized during pressure relief; during high-pressure test, high-pressure booster pump 33 power is higher, and in the testing process, fluid can heat up very fast, can't satisfy test temperature stable, consequently, at experimental oil tank 16, external water circulative cooling system pump 18 forms circulation system 50 with pipeline two (39), carries out circulative cooling to fluid, guarantees the constancy of temperature.
In the lubricating oil test process, the oil involved is more, and if the oil needs to be replaced, the oil way needs to be cleaned up, so that oil mixing is avoided, and the test effect is influenced. In the test process, the low-pressure oil way (the first oil supply pipeline 48) is more in oil storage and needs to be cleaned in an important way; the high-pressure oil circuit (the oil supply pipeline II 49) hardly passes oil, and is approximately considered to have no residue and is ignored; in addition, in the water cooler 17 and its oil passage, the residual oil is large, and the cleaning is difficult, and the important cleaning is required.
In combination with the structural requirements, the invention designs two back-blowing lines which are controlled by a valve zero 46-a valve ten 10, an oil injection pump 11 and an oil well pump 12. One line is connected with a low-pressure oil way (an oil supply line I48) and is controlled by a valve nine 9, the back blowing is divided into two directions, the left part of the back blowing line is directly blown back to the test oil tank 16 through compressed air, the right part of the back blowing line, residual oil flows out of the low-pressure oil way (the oil supply line I48), an oil outlet flows to a tester workbench, and the residual oil flows back to the test oil tank 16 through an external residual oil recovery system; the other back blowing route is controlled by a valve ten 10 and is directly connected with the water cooler 17, and residual oil in the water cooler 17 and an oil way thereof is blown back to the test oil tank 16 during back blowing; in addition, when the residual oil is more, the control valve (valve zero 46) outside the water cooler 17 can be back-blown according to the above steps, and then the valve zero 46 and the oil pump 12 are opened to perform one back-pumping.
The following example is the process of replacing oil 1 with oil 2: the flow of automatic control replacement is as follows:
s1, opening the eight 8, nine 9 and ten 10 valves, closing the rest valves, introducing compressed air of the plant, and blowing the original oil product and residual oil in the pipeline back to the test oil tank 16;
s2, opening the second valve 2, closing the other valves, and opening the oil pump 12 to pump the oil in the test oil tank 16 back to the first oil tank 13;
s3, opening a valve six 6, a valve nine 9 and a valve ten 10, closing the rest valves, opening the oil injection pump 11 for about 10S, flushing the oil circuit with oil in the oil product second oil tank 14 in the pipeline, and cleaning the original oil product first residual oil in the oil circuit again;
s4, opening the eight 8, nine 9 and ten 10 valves, closing the rest valves, and introducing compressed air of the plant to blow out the mixed oil of the first oil and the second oil in the pipeline;
s5, opening the first valve 1, closing the other valves, opening the oil pump 12, and pumping out the mixed oil (waste oil treatment) blown out from the oil tank;
s6, checking the residual oil condition in the water cooler 17, if the residual oil exists, opening the valve zero 46, closing the other valves, opening the oil pump 12, and further cleaning the residual oil in the water cooler 17.
S7, opening a valve six 6, a valve nine 9 and a valve ten 10, closing the other valves, and opening the oiling pump 11 to replace the oil in the oil product second oil tank to the system oil tank;
and S8, closing all valves.
The processes (S1-S8) can achieve independent control (each step from S1 to S8 has an independent control key) and unified control (steps S1 to S8 are controlled by one key, namely after the key is pressed, the processes from S1 to S8 are automatically executed), and each electric control valve has a corresponding control key.
The flow is the whole process of replacing the oil product I by the oil product II, and the replacement processes of other oil products are consistent with the process. When the oil is too much, an oil tank can be added, and more oil replacement is realized.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a many oil products replacement lubricating oil flow, suppress tester which characterized in that: the device comprises an oil filling pump (11), an oil well pump (12), an oil first oil tank (13), an oil second oil tank (14), an oil third oil tank (15), a pipeline first (38), a pipeline second (39), a pipeline third (40), a pipeline fourth (41) and a test pressure control system (47);
the inlet end of the oil well pump (12) is communicated with a test oil tank of a test pressure control system (47) through a first pipeline (38), the outlet end of the oil well pump (12) is respectively communicated with a first oil tank (13), a second oil tank (14) and a third oil tank (15),
the inlet end and the compressed air source of the oil injection pump (11) are respectively communicated with a test oil tank (16) of a test pressure control system (47) through a second pipeline (39) and a third pipeline (40), the outlet end of the oil injection pump (11) is respectively communicated with a first oil tank (13), a second oil tank (14) and a third oil tank (15),
and the fourth pipeline (41) is respectively communicated with the first pipeline (38), the second oil tank (14) and the third oil tank (15).
2. The multiple oil displacement lubricant flow, pressurization tester of claim 1, wherein: and a nine valve (9) is installed on the third pipeline (40), a ten valve (10) is installed on the second pipeline (39), and an eight valve (8) is installed on the pipeline communicated with the second pipeline (39) and the third pipeline (40) by the compressed air source.
3. The multiple oil displacement lubricant flow, pressurization tester of claim 1, wherein: install valve two (2) on the pipeline between oil-well pump (12) and oil first oil tank (13), install valve three (3) on the pipeline between oil-well pump (12) and oil second oil tank (14), install valve four (4) on the pipeline between oil-well pump (12) and oil third oil tank (15).
4. The multiple oil displacement lubricant flow, pressurization tester of claim 1, wherein: install valve five (5) on the pipeline between oiling pump (11) and oil first oil tank (13), install valve six (6) on the pipeline between oiling pump (11) and oil second oil tank (14), install valve seven (7) on the pipeline between oiling pump (11) and oil third oil tank (15).
5. The multiple oil displacement lubricant flow, pressurization tester of claim 1, wherein: and a first valve (1) is arranged on the fourth pipeline (41).
6. The multiple oil displacement lubricant flow, pressurization tester of claim 1, wherein: experimental pressure control system (47) is including experimental oil tank (16), water chiller (17), water-cooling circulation system pump (18), oil absorption filter (19), supply oil pipeline (48) and supply oil pipeline two (49), the exit end and oil-well pump (12) intercommunication of pipeline (38), pipeline (38) entry end through branch road one (42) and branch road two (43) and experimental oil tank (16) intercommunication, install on branch road two (43) water chiller (17) and valve zero (46), water-cooling circulation system pump (18) set up between experimental oil tank (16) and pipeline two (39), oil in experimental oil tank (16) supplies oil through oil absorption filter (19) and flows in pipeline one (48) and supplies oil pipeline two (49).
7. The multiple oil displacement lubricant flow, pressurization tester of claim 6, wherein: the oil supply device is characterized in that a manual valve (20), a low-pressure booster pump (21), a fine oil filter (23), a ball valve (24), a pressure stabilizing tank (26), an oil filter (27), a servo control valve (28), a pressure gauge (31) and two parallel mass flowmeters (30) are sequentially installed on the oil supply pipeline (48) from the oil inlet end to the oil outlet end, an overflow valve (22) is arranged on the pipeline (40), the pipeline (40) is communicated with the oil supply pipeline (48), an oil return pipeline (44) is arranged between the oil supply pipeline (48) and a test oil tank (16), and a manual coarse adjusting valve (25) and a manual fine adjusting valve (29) are installed on the oil return pipeline (44) in parallel.
8. The multiple oil displacement lubricant flow, hold-down tester of claim 6 or 7, wherein: the second oil supply pipeline (48) is sequentially provided with a first manual control valve (45), a high-pressure booster pump (33), a one-way valve (35), an inlet end of the first loop, a second fine oil filter (36), an inlet end of the second loop and a second pressure gauge (37) from an oil inlet end to an oil outlet end; and a second manual control valve (32) is installed on the first loop, a second overflow valve (34) is installed on the second loop, and the outlet end of the first loop and the outlet end of the second loop are both communicated with the test oil tank (16).
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Cited By (1)
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| CN114412880A (en) * | 2021-12-29 | 2022-04-29 | 湖南中联重科应急装备有限公司 | Hydraulic oil replacing system and method and fire fighting truck |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114412880A (en) * | 2021-12-29 | 2022-04-29 | 湖南中联重科应急装备有限公司 | Hydraulic oil replacing system and method and fire fighting truck |
| CN114412880B (en) * | 2021-12-29 | 2024-02-27 | 湖南中联重科应急装备有限公司 | Hydraulic oil replacement method and fire truck |
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| CN111256770B (en) | 2021-07-13 |
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