1. The utility model provides an oil feeding system for test of torque converter (1), the system is including front and back chamber test oil circuit, front and back chamber test oil circuit is including oil tank (2), can provide first pipeline (3) of oil pressure and second pipeline (4) that can provide the oil pressure, and the chamber communicates through first pipeline (3) and oil tank (2) behind the torque converter, and the chamber communicates through second pipeline (4) and oil tank (2) before the torque converter, is provided with first test table (5) on first pipeline (3), is provided with second test table (6) on second pipeline (4), its characterized in that, the system is still including torque converter exhaust unit, the entry and the interior intercommunication of torque converter (1) of torque converter exhaust unit, the export and exterior space or oil tank (2) intercommunication of torque converter exhaust unit.

2. An oil supply system for a torque converter (1) test according to claim 1, characterized in that the torque converter exhaust unit comprises a first valve (7), a solenoid valve (8), an exhaust line (9);

be provided with first valve (7) on second pipeline (4), second pipeline (4) between first valve (7) and the torque converter front chamber communicates with the one end of exhaust pipe (9), the other end and exterior space or oil tank (2) intercommunication of exhaust pipe (9), be provided with solenoid valve (8) on exhaust pipe (9).

3. The oil supply system for the torque converter (1) test according to claim 2, wherein the system further comprises an integrated test unit, a slip-friction heat dissipation mode unit and a mode switching unit;

the comprehensive test unit is used for testing a torque conversion mode, a locking mode or a sliding friction mode of the hydraulic torque converter (1);

the sliding friction heat dissipation mode unit is used for carrying out heat dissipation while testing a sliding friction mode of the hydraulic torque converter (1);

the mode switching unit can communicate the slip heat dissipation mode unit with the interior of the torque converter (1).

4. Oil supply system for testing a hydrodynamic torque converter (1) according to claim 3, characterized in that the integrated test unit comprises a first pump (10) and a second pump (11);

the first pump (10) is arranged on the first pipeline (3), the second pump (11) is arranged on the second pipeline (4), and both the first pump (10) and the second pump (11) are adjustable pressure pumps.

5. The oil supply system for the test of the hydraulic torque converter (1) according to claim 3, wherein the slip heat dissipation mode unit comprises a heat dissipation oil path (12) for dissipating heat in the hydraulic torque converter (1);

one end of the heat dissipation oil path (12) can be communicated with the interior of the hydraulic torque converter, and the other end of the heat dissipation oil path (12) is communicated with the interior of the exhaust pipeline (9).

6. An oil supply system for a torque converter (1) test according to claim 5, characterized in that the mode switching unit comprises a second valve (13);

the second valve (13) is arranged on the exhaust pipeline (9), and the second valve (13) is located between the intersection point position of the heat dissipation pipeline and the exhaust pipeline (9) and the oil tank (2).

7. An oil supply system for testing a hydraulic torque converter (1) as claimed in claim 1, characterized in that the system further comprises a first back pressure unit for stabilizing the oil pressure in the first line (3), the first back pressure unit comprising a third line (14), a first throttle valve (15);

the first pipeline (3) is communicated with the oil tank (2) through a third pipeline (14), and a first throttle valve (15) is arranged on the third pipeline (14).

8. An oil supply system for testing a hydraulic torque converter (1) as claimed in claim 2, characterized in that the system further comprises a second back pressure unit for stabilizing the oil pressure in the second line (4), the second back pressure unit comprising a fourth line (16), a second throttle valve (17);

the second pipeline (4) between the first valve (7) and the oil tank (2) is communicated with one end of a fourth pipeline (16), the other end of the fourth pipeline (16) is communicated with the oil tank (2), and a second throttle valve (17) is arranged on the fourth pipeline (16).

9. An oil supply system for testing a hydraulic torque converter (1) according to any one of claims 6-8, characterized in that the system further comprises a multi-oil testing unit capable of testing a plurality of oil products, the multi-oil testing unit comprises a first air inlet pipe (18), a second air inlet pipe (19), a third air inlet pipe (20), a first oil tank (21), a third valve (22), an oil supply main pipeline (23), a first oil supply pipe (24), a second oil supply pipe (25), a first oil supply valve (26) and a second oil supply valve (27); the third valve (22) is arranged on the first pipeline (3), and the third valve (22) is positioned between the intersection point position of the third pipeline (14) and the first pipeline (3) and a rear cavity of the hydraulic torque converter;

the end, close to the oil tank (2), of the first pipeline (3) and the end, close to the oil tank (2), of the second pipeline (4) are both communicated with an oil supply main pipeline (23), the oil supply main pipeline (23) is communicated with the oil tank (2) through a first oil supply pipe (24), the oil supply main pipeline (23) is further communicated with the first oil tank (21) through a second oil supply pipe (25), a first oil supply valve (26) is arranged on the first oil supply pipe (24), a second oil supply valve (27) is arranged on the second oil supply pipe (25), and the first air inlet pipe (18) is communicated with the oil supply main pipeline (23);

the other end of the third pipeline (14) is also communicated with a first oil tank (21), and the other end of the fourth pipeline (16) is also communicated with the first oil tank (21);

a second air inlet pipe (19) is communicated with the second pipeline (4) between the intersection point position of the fourth pipeline (16) and the second pipeline (4) and the first valve (7);

the other end of the exhaust pipeline (9) is also communicated with a first oil tank (21);

and a third air inlet pipe (20) is communicated with the exhaust pipeline (9) between the second valve (13) and the oil tank (2).

Background

A torque converter is an element that transfers power by means of the high speed movement of a fluid. In the production process, the performance of the produced hydraulic torque converter needs to be tested so as to ensure the quality of the hydraulic torque converter. The existing oil supply system for the hydraulic torque converter has the defects that the existing oil supply system realizes the simulation of the torque conversion mode and the locking mode of the hydraulic torque converter by injecting oil into the hydraulic torque converter through a pipeline, when the rest hydraulic torque converters need to be simulated, the existing oil supply system can only exhaust the hydraulic torque converter through a torque conversion mode oil path or a locking mode oil path, the hydraulic torque converter cannot be rapidly exhausted, and the efficiency of simulation test is low.

Disclosure of Invention

The invention aims to provide an oil supply system for a hydraulic torque converter test, which is used for supplying oil to the hydraulic torque converter during the test.

The system comprises a front cavity testing oil path and a rear cavity testing oil path, wherein the front cavity testing oil path and the rear cavity testing oil path comprise an oil tank, a first pipeline capable of providing oil pressure and a second pipeline capable of providing oil pressure, a rear cavity of a hydraulic torque converter is communicated with the oil tank through the first pipeline, a front cavity of the hydraulic torque converter is communicated with the oil tank through the second pipeline, a first testing meter is arranged on the first pipeline, a second testing meter is arranged on the second pipeline, the system also comprises a torque converter exhaust unit, an inlet of the torque converter exhaust unit is communicated with the inside of the hydraulic torque converter, and an outlet of the torque converter exhaust unit is communicated with an external space or the oil tank.

Preferably, the torque converter exhaust unit comprises a first valve, an electromagnetic valve and an exhaust pipeline;

the hydraulic torque converter is characterized in that a first valve is arranged on the second pipeline, the second pipeline between the first valve and the front cavity of the hydraulic torque converter is communicated with one end of an exhaust pipeline, the other end of the exhaust pipeline is communicated with an external space or an oil tank, and an electromagnetic valve is arranged on the exhaust pipeline.

Preferably, the system also comprises a comprehensive test unit, a sliding friction heat dissipation mode unit and a mode switching unit;

the comprehensive testing unit is used for testing a torque conversion mode, a locking mode or a sliding friction mode of the hydraulic torque converter;

the sliding friction heat dissipation mode unit is used for carrying out heat dissipation while testing a sliding friction mode of the hydraulic torque converter;

the mode switching unit may communicate the slip heat dissipation mode unit with the torque converter interior.

Preferably, the comprehensive test unit comprises a first pump and a second pump;

the first pump is arranged on the first pipeline, the second pump is arranged on the second pipeline, and both the first pump and the second pump are adjustable pressure pumps.

Preferably, the sliding friction heat dissipation mode unit comprises a heat dissipation oil path capable of dissipating heat in the torque converter;

one end of the heat dissipation oil path can be communicated with the interior of the hydraulic torque converter, and the other end of the heat dissipation oil path is communicated with the interior of the exhaust pipeline.

Preferably, the mode switching unit comprises a second valve;

the second valve is arranged on the exhaust pipeline and located between the intersection point position of the heat dissipation pipeline and the exhaust pipeline and the oil tank.

Preferably, the system further comprises a first back pressure unit capable of stabilizing the oil pressure in the first pipeline, wherein the first back pressure unit comprises a third pipeline and a first throttle valve;

the first pipeline is communicated with the oil tank through a third pipeline, and a first throttle valve is arranged on the third pipeline.

Preferably, the system further comprises a second back pressure unit capable of stabilizing the oil pressure in the second pipeline, and the second back pressure unit comprises a fourth pipeline and a second throttle valve;

and a second pipeline between the first valve and the oil tank is communicated with one end of a fourth pipeline, the other end of the fourth pipeline is communicated with the oil tank, and a second throttle valve is arranged on the fourth pipeline.

Preferably, the system further comprises a multi-oil product testing unit capable of testing multiple oil products, wherein the multi-oil product testing unit comprises a first air inlet pipe, a second air inlet pipe, a third air inlet pipe, a first oil tank, a third valve, an oil supply main pipeline, a first oil supply pipe, a second oil supply pipe, a first oil supply valve and a second oil supply valve;

the third valve is arranged on the first pipeline and located between the intersection point of the third pipeline and the first pipeline and the rear cavity of the hydraulic torque converter;

the first oil supply main pipeline is communicated with the oil tank through a first oil supply pipe, the oil supply main pipeline is also communicated with the first oil tank through a second oil supply pipe, a first oil supply valve is arranged on the first oil supply pipe, a second oil supply valve is arranged on the second oil supply pipe, and the first air inlet pipe is communicated with the oil supply main pipeline;

the other end of the third pipeline is also communicated with a first oil tank, and the other end of the fourth pipeline is also communicated with the first oil tank;

a second air inlet pipe is communicated with the second pipeline between the intersection point position of the fourth pipeline and the second pipeline and the first valve;

the other end of the exhaust pipeline can be communicated with a first oil tank;

and a third air inlet pipe is communicated with the air exhaust pipeline between the second valve and the oil tank.

After adopting the structure, compared with the prior art, the invention has the following advantages:

1. by arranging the exhaust pipeline, when a new hydraulic torque converter is replaced, the first valve is closed, the second valve and the electromagnetic valve are opened, the first pump is started, the oil in the oil tank is pumped into the rear cavity of the hydraulic torque converter, and the air in the hydraulic torque converter can be exhausted into the exhaust pipeline from the second pipeline communicated with the front cavity of the hydraulic torque converter, so that the exhausting efficiency is improved, the risk of residual air in the second pipeline caused by directly exhausting the air along the second pipeline is avoided, and the testing accuracy is improved;

2. the heat dissipation pipeline is also communicated with the front cavity of the hydraulic torque converter, so that when the hydraulic torque converter is emptied, the hydraulic torque converter can be emptied through the exhaust pipeline and the heat dissipation pipeline, the emptying efficiency is improved, and the detection efficiency is improved;

3. this application is through setting up pressure adjustable first pump and second pump, through the combination switching of first valve, second valve, third valve, solenoid valve, can realize the torque converter's torque conversion mode test, shutting mode test, smooth radiating mode test of rubbing and torque converter's quick carminative free switching, five kinds of oil circuit modes when having realized the torque converter test provide, practiced thrift the cost, improved efficiency of software testing.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof.

Drawings

The drawings of the present invention are described below.

FIG. 1 is a schematic view of the connection of the oil supply system of the present invention to a torque converter;

FIG. 2 is an enlarged view of a portion of the present invention at A;

FIG. 3 is a schematic representation of the operation of the torque converter exhaust unit of the present invention;

FIG. 4 is a schematic diagram of the operation of the integrated test unit of the present invention;

FIG. 5 is a schematic diagram of the operation of the sliding friction heat dissipation mode unit of the present invention;

FIG. 6 is a schematic diagram illustrating the operation of the multi-oil test unit of the present invention in cleaning the oil in the exhaust line, the first line and the second line;

fig. 7 is a schematic view showing the operation of the oil supply system when the test is performed using the oil in the first oil tank according to the present invention.

In the figure: 1. a hydraulic torque converter; 2. an oil tank; 3. a first pipeline; 4. a second pipeline; 5. a first test meter; 6. a second test meter; 7. a first valve; 8. an electromagnetic valve; 9. an exhaust line; 10. a first pump; 11. a second pump; 12. a heat radiation oil path; 13. a second valve; 14. a third pipeline; 15. a first throttle valve; 16. a fourth pipeline; 17. a second throttle valve; 18. a first intake pipe; 19. a second intake pipe; 20. a third intake pipe; 21. a first oil tank; 22. a third valve; 23. a main oil supply pipeline; 24. a first oil supply pipe; 25. a second oil supply pipe; 26. a first oil supply valve; 27. a second oil supply valve.

Detailed Description

The invention is further illustrated by the following figures and examples.

As shown in figure 1, the oil supply system for the test of the hydraulic torque converter comprises a front cavity test oil circuit and a rear cavity test oil circuit, wherein the front cavity test oil circuit and the rear cavity test oil circuit comprise an oil tank 2, a first pipeline 3 capable of providing oil pressure and a second pipeline 4 capable of providing the oil pressure, a rear cavity of the hydraulic torque converter is communicated with the oil tank 2 through the first pipeline 3, a front cavity of the hydraulic torque converter is communicated with the oil tank 2 through the second pipeline 4, a first test meter 5 is arranged on the first pipeline 3, a second test meter 6 is arranged on the second pipeline 4, the system further comprises a torque converter exhaust unit, an inlet of the torque converter exhaust unit is communicated with the interior of the hydraulic torque converter 1, and an outlet of the torque converter exhaust unit is communicated with an external space or the oil tank 2.

As shown in fig. 3, the exhaust unit of the torque converter comprises a first valve 7, an electromagnetic valve 8 and an exhaust pipeline 9;

the hydraulic torque converter is characterized in that a first valve 7 is arranged on the second pipeline 4, the second pipeline 4 between the first valve 7 and a front cavity of the hydraulic torque converter is communicated with one end of an exhaust pipeline 9, the other end of the exhaust pipeline 9 is communicated with an external space or an oil tank 2, and an electromagnetic valve 8 is arranged on the exhaust pipeline 9.

When the inside of the torque converter 1 needs to be exhausted, the electromagnetic valve 8 is opened, the first valve 7 is closed, and oil is injected into the torque converter 1 through the first pipeline 3, so that air in the torque converter 1 is exhausted through a part of the second pipeline 4 and the exhaust pipeline 9.

As shown in fig. 1 to 5, the system further includes a comprehensive test unit, a sliding friction heat dissipation mode unit and a mode switching unit;

the comprehensive test unit is used for testing a torque conversion mode, a locking mode or a sliding friction mode of the hydraulic torque converter 1;

the sliding friction heat dissipation mode unit is used for carrying out heat dissipation while testing a sliding friction mode of the hydraulic torque converter 1;

the mode switching unit may communicate the slip heat dissipation mode unit with the inside of the torque converter 1.

As shown in fig. 4, the integrated test unit includes a first pump 10 and a second pump 11;

the first pump 10 is arranged on the first pipeline 3, the second pump 11 is arranged on the second pipeline 4, and both the first pump 10 and the second pump 11 are adjustable pressure pumps;

when a torque conversion mode test needs to be performed on the hydraulic torque converter 1, the electromagnetic valve 8 is closed, the first valve 7 is opened, the first pump 10 and the second pump 11 are started, and the oil pressure in the first pipeline 3 is larger than the oil pressure in the second pipeline 4 by controlling the first pump 10 and the second pump 11, so that oil supply in the torque conversion mode is performed on the hydraulic torque converter 1;

when the slip friction mode test needs to be performed on the hydraulic torque converter 1, the electromagnetic valve 8 is closed, the first valve 7 is opened, the first pump 10 and the second pump 11 are started, and the oil pressure in the first pipeline 3 is smaller than the oil pressure in the second pipeline 4 by controlling the first pump 10 and the second pump 11, so that the oil supply in the slip friction mode is performed on the hydraulic torque converter 1;

when the test oil supply of the locking mode needs to be carried out on the hydraulic torque converter 1, the electromagnetic valve 8 is closed, the first valve 7 is opened, the second pump 11 is started, and the oil is supplied to the front cavity of the hydraulic torque converter 1 through the second pipeline 4, so that the oil supply of the locking mode on the hydraulic torque converter 1 is realized.

As shown in fig. 5, the slip heat dissipation mode unit includes a heat dissipation oil path that can dissipate heat inside the torque converter;

one end of the heat dissipation oil path can be communicated with the inside of the hydraulic torque converter, and the other end of the heat dissipation oil path is communicated with the inside of the exhaust pipeline;

when the torque converter 1 is subjected to the slip mode test oil supply, a large amount of heat may be generated in the torque converter 1, and at this time, the temperature in the torque converter 1 can be reduced through the heat radiation oil path 12.

As shown in fig. 1, the mode switching unit includes a second valve 13;

the second valve 13 is arranged on the exhaust pipeline 9, and the second valve 13 is positioned between the intersection point position of the heat dissipation pipeline and the exhaust pipeline 9 and the oil tank 2.

By providing the second valve 13, switching between supplying oil to the sliding friction heat dissipation mode of the torque converter 1, supplying oil to the torque conversion mode, supplying oil to the sliding friction mode, or supplying oil to the lockup mode can be realized.

As shown in fig. 4, the system further includes a first back pressure unit for stabilizing the oil pressure in the first pipeline 3, the first back pressure unit includes a third pipeline 14 and a first throttle 15;

the first pipeline 3 is communicated with the oil tank 2 through a third pipeline 14, and a first throttle valve 15 is arranged on the third pipeline 14;

when the torque converter 1 is tested, the first throttle valves 15 are both in an open state, so that the first pipeline 3 is communicated with the oil tank 2 through the third pipeline 14, thereby realizing the formation of back pressure on the first pipeline 3 and ensuring the stability of oil pressure in the first pipeline 3.

As shown in fig. 4, the system further includes a second back pressure unit for stabilizing the oil pressure in the second pipeline 4, and the second back pressure unit includes a fourth pipeline 16 and a second throttle 17;

one end of a fourth pipeline 16 is communicated with the second pipeline 4 between the first valve 7 and the oil tank 2, the other end of the fourth pipeline 16 is communicated with the oil tank 2, and a second throttle valve 17 is arranged on the fourth pipeline 16;

when the torque converter 1 is tested, the second throttle valves 17 are both in an open state, so that the second pipeline 4 is communicated with the oil tank 2 through the fourth pipeline 16, thereby realizing the formation of back pressure on the second pipeline 4 and ensuring the stability of oil pressure in the second pipeline 4.

As shown in fig. 6 to 7, the system further includes a multi-oil testing unit capable of testing a plurality of oil products, and the multi-oil testing unit includes a first air inlet pipe 18, a second air inlet pipe 19, a third air inlet pipe 20, a first oil tank 21, a third valve 22, an oil supply main pipe 23, a first oil supply pipe 24, a second oil supply pipe 25, a first oil supply valve 26, and a second oil supply valve 27; the third valve 22 is arranged on the first pipeline 3, and the third valve 22 is positioned between the intersection point of the third pipeline 14 and the first pipeline 3 and the rear cavity of the hydraulic torque converter;

the end, close to the oil tank 2, of the first pipeline 3 and the end, close to the oil tank 2, of the second pipeline 4 are both communicated with an oil supply main pipeline 23, the oil supply main pipeline 23 is communicated with the oil tank 2 through a first oil supply pipe 24, the oil supply main pipeline 23 is also communicated with the first oil tank 21 through a second oil supply pipe 25, the first oil supply pipe 24 is provided with a first oil supply valve 26, the second oil supply pipe 25 is provided with a second oil supply valve 27, and the first air inlet pipe 18 is communicated with the oil supply main pipeline 23;

the other end of the third pipeline 14 is also communicated with a first oil tank 21, and the other end of the fourth pipeline 16 is also communicated with the first oil tank 21;

a second air inlet pipe 19 is communicated with the second pipeline 4 between the intersection point position of the fourth pipeline 16 and the second pipeline 4 and the first valve 7;

the other end of the exhaust pipeline 9 can also be communicated with a first oil tank 21;

a third air inlet pipe 20 is communicated with the exhaust pipeline 9 between the second valve 13 and the oil tank 2;

when another oil product needs to be tested for the torque converter 1, the first oil supply valve 26 and the second oil supply valve 27 are closed, the first valve 7, the second valve 13 and the third valve 22 are closed, air is blown into the first pipeline 3, the second pipeline 4 and the exhaust pipeline 9 through the first air inlet pipe 18, the second air inlet pipe 19 and the third air inlet pipe 20, so that the oil in the oil is blown back into the oil tank 2, the first oil supply valve 26 is opened, the first pump 10 and the second pump 11 are started, the oil in the first oil tank 21 can be injected into the torque converter 1, and the oil supply of the torque converter 1 which is not in favor of the oil product is realized.

The working principle is as follows: when a torque conversion mode test needs to be performed on the torque converter 1, the electromagnetic valve 8 and the second valve 13 are closed, the third valve 22 is opened, the first valve 7 is opened, the first pump 10 and the second pump 11 are started, and the oil pressure in the first pipeline 3 is larger than the oil pressure in the second pipeline 4 by controlling the first pump 10 and the second pump 11, so that oil supply in the torque conversion mode is performed on the torque converter 1;

when the slip friction mode test of the torque converter 1 is required, the electromagnetic valve 8 and the second valve 13 are closed, the third valve 22 is opened, the first valve 7 is opened, the first pump 10 and the second pump 11 are started, and the oil pressure in the first pipeline 3 is smaller than the oil pressure in the second pipeline 4 by controlling the first pump 10 and the second pump 11, so that the oil supply of the slip friction mode to the torque converter 1 is realized;

when the test oil supply of the locking mode needs to be carried out on the hydraulic torque converter 1, the electromagnetic valve 8 and the second valve 13 are closed, the third valve 22 is opened, the first valve 7 is opened, the second pump 11 is started, and the oil is supplied to the front cavity of the hydraulic torque converter 1 through the second pipeline 4, so that the oil supply of the locking mode on the hydraulic torque converter 1 is realized;

when oil supply is needed for testing the sliding friction heat dissipation mode of the hydraulic torque converter 1, the electromagnetic valve 8 is closed, the first valve 7, the second valve 13 and the third valve 22 are opened, the first pump 10 and the second pump 11 are started, the oil pressure in the first pipeline 3 is smaller than the oil pressure in the second pipeline 4 by controlling the first pump 10 and the second pump 11, and the oil with higher temperature in the front cavity of the hydraulic torque converter 1 returns to the oil tank 2 through the heat dissipation oil circuit 12 and the exhaust pipeline 9, so that the oil supply for heat dissipation of the sliding friction heat dissipation mode of the hydraulic torque converter 1 is realized;

when the torque converter 1 needs to be evacuated, the electromagnetic valve 8, the second valve 13, and the third valve 22 are opened, the first valve 7 is closed, the first pump 10 is started, and oil is injected into the torque converter 1 through the first line 3, whereby air in the torque converter 1 is discharged through the exhaust line 9 and the heat radiation oil passage 12.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.