An oil pump charging test device

Abstract

The application discloses an oil pump inflation test device, which comprises a gas pipe connected with an air inlet end of a bubble generator, a trumpet end of a trumpet oil pipe covering an air outlet end of the bubble generator, the bubble generator, the trumpet oil pipe and an oil pump inlet pipe being placed in an oil tank, one end of the oil pump inlet pipe being connected with the other end of the trumpet oil pipe, the trumpet end of the trumpet oil pipe being connected with the oil tank, and the other end of the oil pump inlet pipe being connected with a pipeline of an oil inlet of the oil pump; an electric control adjusting valve is installed on the gas pipe; and an air flow meter is installed on the gas pipe. The technical content disclosed by the application can quantitatively control the air content of oil liquid sucked by the oil pump, simulate the actual working environment of the oil pump to test the oil pump, and improve the reliability of test development.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydraulic systems, and more particularly, to an oil pump air charging test device. BACKGROUND

[0002] An oil pump is a power element of a hydraulic system, and its main function is to convert mechanical energy into pressure energy in the hydraulic system. Oil pumps for different purposes have very different working environments, and therefore, the oil pumps must meet different characteristics. For example, the oil pump in a transmission or gear box, because the gears in the transmission or gear box rotate at high speed when working, and rely on the rotation of the gears to stir the oil to achieve splash lubrication of the gear teeth and bearings, therefore, there are often a large number of air bubbles in the hydraulic oil inside such type of equipment caused by stirring the oil. In order to determine whether the designed oil pump meets the requirements of working in such an environment, the oil pump needs to be subjected to an air charging test.

[0003] Therefore, how to provide an oil pump air charging test device becomes a technical problem to be solved in the field. SUMMARY

[0004] The purpose of the present application is to provide an oil pump air charging test device.

[0005] According to the present application, an oil pump air charging test device is provided, comprising an air pipe, an air bubble generator, a horn oil pipe, an oil tank and an oil pump inlet pipe.

[0006] One end of the air pipe is connected to compressed air, the other end of the air pipe is connected to the air inlet end of the air bubble generator, the horn end of the horn oil pipe covers the air outlet end of the air bubble generator, the air bubble generator, the horn oil pipe and the oil pump inlet pipe are placed in the oil tank, one end of the oil pump inlet pipe is connected to the other end of the horn oil pipe, the horn end of the horn oil pipe is connected to the oil tank, and the other end of the oil pump inlet pipe is connected to the pipeline of the oil inlet of the oil pump.

[0007] Optionally, the device further comprises an electrically controlled regulating valve.

[0008] The electrically controlled regulating valve is installed on the air pipe.

[0009] Optionally, the device further comprises an air flow meter.

[0010] The air flow meter is installed on the air pipe.

[0011] Optionally, the device further comprises an air filter.

[0012] The air filter is installed on the air pipe.

[0013] Optionally, the oil tank comprises an oil tank oil outlet area and an oil tank oil return area.

[0014] The oil outlet area and the oil return area of the oil tank each occupy half of the space of the oil tank; the bubble generator, the trumpet oil pipe and the oil pump inlet pipe are placed in the oil outlet area of the oil tank.

[0015] Optionally, the device further comprises a defoaming screen.

[0016] The defoaming screen is made of a 60-mesh single-layer screen and is placed in the middle of the oil tank to divide the oil tank into the oil outlet area and the oil return area.

[0017] According to the disclosed technical content, the following beneficial effects can be achieved: the air content of the oil pump suction oil can be quantitatively controlled, the oil pump is tested in a simulated actual working environment, and the reliability of the test development is improved.

[0018] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings incorporated in and forming a part of the specification, illustrate embodiments of the present application and, together with the description, serve to explain the principles of the application.

[0020] Figure 1 FIG. 1 is a schematic diagram of an oil pump aeration test device according to an embodiment.

[0021] The reference signs are as follows: 11-air pipe, 12-air filter, 13-electronic control regulating valve, 14-air flow meter, 15-bubble generator, 21-trumpet oil pipe, 22-defoaming screen, 23-oil tank, 24-oil pump inlet pipe, 31-oil outlet area of the oil tank, 32-oil return area of the oil tank. DETAILED DESCRIPTION

[0022] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement, numerical expressions and values of the components and steps set forth in these embodiments are not limiting to the scope of the present application unless otherwise specifically stated.

[0023] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way limiting to the scope of the application or its applications or uses.

[0024] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail herein, but should be considered as part of the specification, where appropriate.

[0025] In all of the examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments can have different values.

[0026] It should be noted that like numerals and letters refer to like items throughout the several views, as such, once an item is defined in one view, it need not be discussed further in subsequent views.

[0027] According to the present application, as Figure 1 shown, there is provided an oil pump aeration test device, comprising, an air pipe 11, a bubble generator 15, a trumpet oil pipe 21, an oil tank 23 and an oil pump inlet pipe 24;

[0028] The air pipe 11 seals and transports air; the bubble generator 15 can refine large bubbles into tiny bubble groups; the trumpet oil pipe 21 can make the oil pump suck in all the bubbles generated by the bubble generator 15 while sucking oil; the oil tank 23 is a container for storing oil;

[0029] One end of the air pipe 11 is connected to compressed air, the other end of the air pipe 11 is connected to the air inlet end of the bubble generator 15, the trumpet end of the trumpet oil pipe 21 covers the air outlet end of the bubble generator 15, the bubble generator 15, the trumpet oil pipe 21 and the oil pump inlet pipe 24 are placed in the oil tank 23, one end of the oil pump inlet pipe 24 is connected to the other end of the trumpet oil pipe 21, the trumpet end of the trumpet oil pipe 21 is connected to the oil tank 23, the other end of the oil pump inlet pipe 24 is connected to the oil inlet pipe of the oil pump.

[0030] In some embodiments, the device further comprises an electrically controlled regulating valve 13;

[0031] The electrically controlled regulating valve 13 is installed on the air pipe 11, and the valve opening can be adjusted by remote control, thereby controlling the air flow.

[0032] The device further comprises an air flow meter 14, which has the function of measuring air flow, and the measurement results can be displayed numerically or output through a signal line;

[0033] The air flow meter 14 is installed on the air pipe 11.

[0034] The device further comprises an air filter 12;

[0035] The air filter 12 is installed on the air pipe 11, and filters out oil vapor, water vapor and dust in the air.

[0036] The oil tank 23 comprises an oil tank oil outlet area 31 and an oil tank oil return area 32;

[0037] The oil tank oil outlet area 31 and the oil tank oil return area 32 each occupy half of the space of the oil tank 23; the bubble generator 15, the trumpet oil pipe 21 and the oil pump oil inlet pipe 24 are placed in the oil tank oil outlet area 31.

[0038] The device further comprises a defoaming screen 22.

[0039] The defoaming screen 22 is made of a 60-mesh single-layer screen and is placed in the middle of the oil tank 23 to divide the oil tank into the oil tank oil outlet area 31 and the oil tank oil return area 32; in order to ensure that the air flow output by the bubble generator 15 is the air flow inhaled by the oil pump, it is required that the oil liquid in the oil tank 23 itself cannot contain bubbles. Therefore, the oil liquid returned by the oil pump first enters the oil tank oil return area 32 and then enters the oil tank oil outlet area 31 after defoaming by the defoaming screen 22.

[0040] Principle of use: during the test, compressed air first passes through the air filter 12 to filter out oil gas, water vapor and dust in the air, then passes through the electric control regulating valve 13 to adjust the air flow, then passes through the air flow meter 14, and finally generates a small bubble group into the trumpet oil pipe 21 through the bubble generator 15. The trumpet oil pipe 21 is connected with the oil pump oil inlet pipe 24, and the oil liquid in the oil tank mixes with the bubbles to enter the oil pump through the trumpet oil pipe 21 and the oil pump oil inlet pipe 24, and then returns to the oil tank oil return area 32 after being compressed by the oil pump, at this time, the oil liquid contains a large number of bubbles. The oil liquid passes through the defoaming screen 22 to eliminate the bubbles and then reflows into the oil tank oil outlet area 31, completing a cycle.

[0041] During the actual test process, the air charging test can be performed on the oil pump according to the working condition of the oil pump, reasonable air content and test time are designed.

[0042] In summary, the technical content disclosed by the present application can quantitatively control the air content of the oil liquid inhaled by the oil pump, simulate the actual working environment of the oil pump to test the oil pump and improve the reliability of the test development.

[0043] Although some specific embodiments of the present application have been described in detail by examples, those skilled in the art should understand that the above examples are only for illustration and are not intended to limit the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. An oil pump aeration test device characterized by comprising: Comprise: Air pipe, bubble generator, horn oil pipe, oil tank and oil pump inlet pipe; One end of the air pipe is connected to compressed air, the other end of the air pipe is connected to the air inlet end of the bubble generator, the horn end of the horn oil pipe covers the air outlet end of the bubble generator, the bubble generator, the horn oil pipe and the oil pump inlet pipe are placed in the oil tank, one end of the oil pump inlet pipe is connected to the other end of the horn oil pipe, the horn end of the horn oil pipe is connected to the oil tank, the other end of the oil pump inlet pipe is connected to the oil inlet pipe of the oil pump; The device further comprises an electrically controlled regulating valve; The electrically controlled regulating valve is installed on the air pipe; The device further comprises an air flow meter; The air flow meter is installed on the air pipe; The device further comprises an air filter; The air filter is installed on the air pipe; The oil tank comprises an oil tank oil outlet area and an oil tank oil return area; The oil tank oil outlet area and the oil tank oil return area each occupy half of the space of the oil tank; the bubble generator, the horn oil pipe and the oil pump inlet pipe are placed in the oil tank oil outlet area; The device further comprises a defoaming net; The defoaming net is made of a 60-mesh single-layer filter screen, and the defoaming net is placed in the middle of the oil tank to divide the oil tank into the oil tank oil outlet area and the oil tank oil return area.

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