Quantitative Oil Filling and Drainage System for Motor Bench Test

Abstract

The quantitative oil filling and draining system for motor bench testing of the present invention includes a liquid filling module and a liquid draining module corresponding to the motor assembly; the liquid filling module includes a constant pressure air pump, a flow sensor A, a solenoid valve, an oil pot, a measuring flask, and a one-way exhaust valve that are used in cooperation; the liquid draining module includes a flow sensor B, a liquid outlet pump, and a waste liquid bottle; and the liquid filling module and the liquid draining module cooperate with a central controller to form an intelligent control type oil filling and discharging control system.

Description

Technical Field

[0001] The present invention relates to intelligent testing technology and testing equipment, and particularly to automotive motor testing technology. Specifically, it is a quantitative oil filling and draining system for motor bench testing. Background Art

[0002] In the field of new energy vehicle technology, for the motor part, a motor test bench is required for testing. During the test, it is necessary to add oil and drain the added oil after the test. At present, manual operation is used for oil filling and draining, and the following problems exist:

[0003] 1) During the process of filling oil, the amount of oil cannot be determined, which may lead to overflow during the oil filling process;

[0004] 2) At present, oil filling is generally carried out manually using a filling gun. Manual oil filling has relatively large potential safety hazards during the filling process. At the same time, due to the need for clamping during motor testing, the oil filling area of the motor is narrow after clamping, and it is difficult to fill the oil manually;

[0005] 3) During the process of oil filling and draining, there is a risk of oil leakage, resulting in operators coming into contact with the oil. Especially during the draining process, there is a phenomenon that operators directly contact the waste liquid, which affects the safety of the testing operation.

[0006] Therefore, it is necessary to provide a quantitative oil filling and draining system for motor bench testing to solve the above problems. Summary of the Invention

[0007] The purpose of the present invention is to provide a quantitative oil filling and draining system for motor bench testing.

[0008] The present invention realizes the above purpose through the following technical solutions:

[0009] Technical Solution:

[0010] A quantitative oil filling and draining system for motor bench testing includes a liquid adding module and a liquid draining module provided corresponding to the motor assembly;

[0011] The liquid adding module includes a constant pressure air pump, a flow sensor A, a solenoid valve, an oil pot, a measuring flask, and a one-way exhaust valve that are used in cooperation;

[0012] The liquid draining module includes a flow sensor B, a liquid discharging pump, and a waste liquid bottle that are used in cooperation;

[0013] Moreover, the liquid adding module and the liquid draining module cooperate with a central controller to form an intelligent control type oil filling and discharging control system.

[0014] Further, both the liquid adding module and the liquid discharging module include a docking pipe that is driven by a linear driving member and docks with the liquid inlet and outlet of the motor assembly.

[0015] Further, an airtight assembly for cooperating with the liquid inlet or outlet of the motor assembly is provided on the docking pipe.

[0016] Further, the constant pressure air pump is connected to multiple series-connected oil pots and measuring bottles, and the flow sensor A and the solenoid valve are arranged between the constant pressure air pump and the oil pot.

[0017] Further, flow sensor A and solenoid valve are also provided between the measuring bottle and the oil pot. The exhaust check valve is connected to the measuring bottle, and the measuring bottle is connected to the oil inlet of the motor assembly.

[0018] Further, the flow sensor B is arranged corresponding to the oil outlet of the motor assembly and is then connected to the liquid discharging pump and the waste liquid bottle.

[0019] Further, the liquid adding process includes:

[0020] S1) The central controller operates to perform pre-liquid adding detection;

[0021] S2) After multiple series-connected oil pots are connected, the constant pressure air pump is connected. When the air pressure of the constant pressure air pump reaches the set air pressure, it starts to work. When the flow sensor A detects that the air pressure reaches the set value, it transmits a signal to the central controller;

[0022] S3) The solenoid valve is opened, and at the same time, the air flow of the flow sensor A is monitored and converted into an electrical signal and transmitted to the central controller. The central controller calculates and closes the solenoid valve when the air volume reaches the set value;

[0023] S4) The oil pot is given a set volume of air through the constant pressure air pump, and at the same time, the same volume of oil is pressed out and given to the measuring bottle;

[0024] S5) The one-way exhaust valve is opened to discharge the air pressure when the oil in the oil pot is filled into the measuring bottle. When the oil reaches the set liquid level in the measuring bottle, the liquid level signaler sends a signal to the central controller, and the solenoid valve at the lower end of the measuring bottle is opened;

[0025] S6) The oil in the measuring bottle flows into the liquid inlet of the motor assembly by its own gravity to complete the oil filling.

[0026] Further, step S1) includes detecting the airtightness of the liquid adding module.

[0027] Further, in step S5), the central controller records the liquid level amount generated by the liquid level signaler, that is, the refueling amount.

[0028] Further, the liquid discharging process includes:

[0029] A1) The central controller sends out a liquid discharge signal; the liquid outlet pump operates to extract the waste liquid into the waste liquid bottle;

[0030] A2) The flow sensor B counts the waste liquid flow rate and monitors it in real time through the central controller;

[0031] A3) The flow controller monitors that the discharged waste oil volume reaches the refueling volume data, controls the liquid outlet pump to stop working, and completes the oil discharge.

[0032] Compared with the prior art, the present invention can efficiently and intelligently complete the processes of oil inlet and oil discharge of the motor assembly in the motor test, improving the test efficiency; and the system is simple and convenient to maintain, effectively solving the problems of unable to quantitatively add oil after the installation of the motor bench is completed and liquid discharge after the test is completed; at the same time, it completely avoids the direct contact between the refueling personnel and the waste liquid during the liquid discharge process, ensuring the safety of the test operation. Description of the Drawings

[0033] Figure 1 is a schematic diagram of the present invention. Detailed Embodiment

[0034] This embodiment shows a quantitative oil liquid filling and discharging system for motor bench testing, including a liquid filling module 100 and a liquid discharging module 200 corresponding to the motor assembly;

[0035] The liquid filling module 100 includes a constant pressure air pump 1, a flow sensor A2, a solenoid valve 3, an oil liquid pot 4, a measuring bottle 5, and a one-way exhaust valve 6 that are used in cooperation;

[0036] The liquid discharging module 200 includes a flow sensor B7, a liquid outlet pump 8, and a waste liquid bottle 9 that are used in cooperation;

[0037] And the liquid filling module 100 and the liquid discharging module 200 cooperate with the central controller 300 to form an intelligent control type oil liquid filling and discharging control system.

[0038] Wherein:

[0039] The liquid filling module 100 and the liquid discharging module 200 are arranged to be automatically docked with the motor assembly: both the liquid filling module 100 and the liquid discharging module 200 include docking pipes that are driven by linear driving parts and dock with the liquid inlet and outlet of the motor assembly 400;

[0040] To ensure the airtightness of the docking and avoid oil leakage:

[0041] An airtight component that cooperates with the liquid inlet or outlet of the motor assembly is provided on the docking pipe.

[0042] The constant pressure air pump 1 is connected to a plurality of series-connected oil liquid pots 4 and measuring bottles 5, and the flow sensor A2 and the solenoid valve 3 are arranged between the constant pressure air pump 1 and the oil liquid pot 4.

[0043] A flow sensor A2 and a solenoid valve 3 are also provided between the volumetric flask 5 and the oil pot 4. The exhaust check valve 6 is connected to the volumetric flask 5, and the volumetric flask 5 is connected to the oil inlet of the motor assembly 400.

[0044] The flow sensor B7 is arranged corresponding to the oil outlet of the motor assembly 400 and is then connected to the liquid outlet pump 8 and the waste liquid bottle 9.

[0045] This embodiment includes the following operation processes:

[0046] I. Liquid filling process, including:

[0047] S1) The central controller 300 runs to perform pre - liquid - filling detection.

[0048] S2) After multiple series - connected oil pots 4 are connected, the constant - pressure air pump 1 is connected. When the air pressure of the constant - pressure air pump 1 reaches the set air pressure, it starts to work. When the flow sensor A2 detects that the air pressure reaches the set value, it transmits a signal to the central controller.

[0049] S3) The solenoid valve 3 is opened, and at the same time, the air flow monitored by the flow sensor A2 is converted into an electrical signal and transmitted to the central controller 300. The central controller 300 calculates and closes the solenoid valve 3 when the air volume reaches the set value.

[0050] S4) The oil pot 4 is given a set volume of air by the constant - pressure air pump 1, and at the same time, the same volume of oil is pressed out and given to the volumetric flask 5.

[0051] S5) The one - way exhaust valve 6 is opened to discharge the air pressure when the oil in the oil pot 4 is filled into the volumetric flask 5. When the oil reaches the set liquid level in the volumetric flask 5, the liquid level signaler sends a signal to the central controller 300, and the solenoid valve 3 at the lower end of the volumetric flask 5 is opened.

[0052] S6) The oil in the volumetric flask 5 flows into the liquid inlet of the motor assembly 400 by its own gravity to complete the oil filling.

[0053] Step S1) includes detecting the airtightness of the liquid - filling module 100.

[0054] In step S5), the central controller 300 also records the liquid level amount signaled by the signaler, that is, the refueling amount.

[0055] II. Liquid discharging process, the steps are:

[0056] A1) The central controller 300 sends a liquid - discharging signal; the liquid outlet pump 8 works to extract the waste liquid to the waste liquid bottle 9.

[0057] A2) The flow sensor B7 performs waste - liquid flow statistics and is monitored in real - time through the central controller 300.

[0058] A3) The flow controller 300 monitors the discharged fuel consumption reaching the refueling volume data, controls the liquid outlet pump 8 to stop working, and completes the oil discharge.

[0059] Refer to Figure 1 for the schematic illustration, which can clearly show the specific implementation steps of this embodiment.

[0060] Compared with the prior art, the present invention can efficiently and intelligently complete the processes of oil inlet and oil discharge of the motor assembly in the motor test, improving the test efficiency; and the system is simple and convenient to maintain, effectively solving the problems of unable to quantitatively fill the oil after the motor bench is installed and liquid discharge after the test is completed; at the same time, it completely avoids the direct contact between the filling personnel and the waste liquid during the liquid discharge process, ensuring the safety of the test operation.

[0061] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the inventive concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A quantitative oil filling and draining system for motor bench testing, characterized in that: it includes a liquid filling module and a liquid draining module corresponding to the motor assembly; The liquid filling module includes a constant pressure air pump, a flow sensor A, a solenoid valve, an oil pot, a measuring flask, and a one-way exhaust valve that are used in cooperation with each other; The liquid discharge module includes a flow sensor B, a liquid outlet pump and a waste liquid bottle that are used in cooperation with each other; The liquid filling module and the liquid discharge module cooperate with the central controller to form an intelligent control system for oil filling and discharging; Both the liquid filling module and the liquid discharge module include a docking pipe that is driven by a linear driving member and then docked with the liquid inlet and outlet of the motor assembly; The constant pressure air pump is connected to multiple series-connected oil pots and measuring bottles. The flow sensor A and the solenoid valve are arranged between the constant pressure air pump and the oil pot; The flow sensor A and the solenoid valve are also arranged between the measuring bottle and the oil pot. The exhaust check valve is connected to the measuring bottle, and the measuring bottle is connected to the oil inlet of the motor assembly; The liquid filling process includes: S1) The central controller runs and performs pre-liquid filling detection; S2) After multiple series-connected oil pots are connected, the constant pressure air pump is connected. When the air pressure of the constant pressure air pump reaches the set air pressure, it starts to work. When the flow sensor A detects that the air pressure reaches the set value, it transmits a signal to the central controller; S3) The solenoid valve opens, and at the same time, the air flow of the flow sensor A is monitored and converted into an electrical signal and transmitted to the central controller. The central controller calculates and closes the solenoid valve when the air volume reaches the set value; S4) The oil pot is given a set volume of air by the constant pressure air pump, and at the same time, the same volume of oil is pressed out and given to the measuring bottle; S5) The one-way exhaust valve opens to discharge the air pressure when the oil in the oil pot is filled into the measuring bottle. When the oil reaches the set liquid level in the measuring bottle, the liquid level signaler sends a signal to the central controller, and the solenoid valve at the lower end of the measuring bottle opens; S6) The oil in the measuring bottle flows into the liquid inlet of the motor assembly by its own gravity, completing the oil filling.

2. The quantitative oil filling and draining system for motor bench testing according to claim 1, characterized in that: an airtight assembly for cooperating with the liquid inlet or liquid outlet of the motor assembly is provided on the docking pipe.

3. The quantitative oil filling and draining system for motor bench testing according to claim 2, characterized in that: a flow sensor B is arranged corresponding to the oil outlet of the motor assembly and is then connected to an outlet pump and a waste liquid bottle.

4. The quantitative oil filling and draining system for motor bench testing according to claim 3, characterized in that: step S1) includes detecting the airtightness of the liquid filling module.

5. The quantitative oil filling and draining system for motor bench testing according to claim 4, characterized in that: in step S5), the central controller records the liquid level amount generated by the liquid level signaler, that is, the refueling amount.

6. The quantitative oil filling and draining system for motor bench testing according to claim 5, characterized in that: The liquid discharge process includes: A1) The central controller issues a liquid discharge signal; the liquid outlet pump works to extract the waste liquid into the waste liquid bottle; A2) The flow sensor B counts the waste liquid flow and monitors it in real time through the central controller; A3) The flow controller monitors that the discharged waste oil volume reaches the refueling volume data, controls the liquid outlet pump to stop working, and completes the oil discharge.

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