Motor cooling waterway sealing test device and test method

Abstract

The invention relates to the technical field of motor cooling waterway sealing, and discloses a motor cooling waterway sealing test device and method, and the device comprises a motor, a three-way solenoid valve, a pressure regulating assembly, and a controller. The cooling water paths of all the motors are connected in series through connecting hoses arranged on the connector seats, a water inlet pipe is arranged on the connector seat of the first motor, and a plug is arranged at a water outlet of the cooling water path of each motor; one end of the three-way electromagnetic valve is communicated with the water inlet pipe, one end is communicated with an external water source, and the other end is communicated with an air inlet pipe; the adjusting assembly is communicated with the air inlet pipe; the controller is electrically connected with the first pressure sensor, the three-way electromagnetic valve and the pressure adjusting assembly. According to the invention, sealing performance testing can be simultaneously carried out on cooling water channels of a plurality of motors, the testing accuracy and efficiency are improved, and the labor and time cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of motor cooling water circuit sealing test, and in particular to a motor cooling water circuit sealing test device and a test method. Background Art

[0002] The cooling of the motor is related to the performance of the motor. The motor is cooled by an internal cooling water channel. Therefore, the linear motor needs to perform a sealing test on the internal cooling water channel of the motor during mass production to prevent water leakage at the sealing connection of the motor. However, the existing method is to test a single motor through manual monitoring, which has poor accuracy and cannot detect water leakage in time. Moreover, it is impossible to perform sealing tests on the cooling water channels of multiple motors in batches at the same time, resulting in a waste of manpower and time, reducing detection efficiency and increasing costs. Summary of the invention

[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a motor cooling water circuit sealing test device and test method, which can simultaneously perform sealing performance tests on the cooling water circuits of multiple motors, improve the accuracy and efficiency of the test, and reduce labor and time costs.

[0004] On the one hand, the present application provides a motor cooling water circuit sealing test device, including a motor, a three-way solenoid valve, a pressure regulating assembly and a controller. A joint seat is provided at the water inlet of the cooling water circuit of each motor, and the cooling water circuit of each motor is connected in series through a connecting hose arranged on the joint seat, and a water inlet pipe is provided on the joint seat of the first motor, and a plug is provided at the water outlet of the cooling water circuit of each motor, and a first pressure sensor and a buzzer are provided at the plug; one end of the three-way solenoid valve is connected to the water inlet pipe, one end is connected to an external water source, and one end is connected to an intake pipe; the regulating assembly is connected to the intake pipe to adjust the water pressure in the cooling water circuit of the motor; the controller is electrically connected to the first pressure sensor, the three-way solenoid valve and the pressure regulating assembly, respectively.

[0005] In some embodiments, the pressure regulating assembly includes a regulating valve, a pressure gas storage tank and a pressure gauge, the regulating valve is connected to the pressure gas storage tank, the pressure gas storage tank is connected to the intake pipe, the pressure gauge is arranged in the intake pipe, and a second pressure sensor is arranged in the intake pipe, the regulating valve and the second pressure sensor are electrically connected to the controller respectively.

[0006] In some embodiments, the joint seat is connected to the water inlet sealing assembly, and a two-way plug tube is extended outward from the upper end surface of the joint seat, a fixing sleeve is provided on the outside of the two-way plug tube, a first sealing ring is provided in the fixing sleeve, and the water inlet pipe inserted on the two-way plug tube is sealed and clamped as the fixing sleeve is tightened, and a sealing plate is also provided in the fixing sleeve to seal the upper end opening of the two-way plug tube.

[0007] In some embodiments, a limit block is provided inside the joint seat near the upper end surface of the water inlet, and the second sealing ring provided on the limit block is sealed and fitted with the upper end surface of the water inlet when the joint seat is tightened.

[0008] In some embodiments, a one-way throttle valve is provided at the water inlet pipe.

[0009] On the other hand, a method for testing the sealing of a motor cooling water circuit is provided, comprising the sealing testing device described above, and the operating steps are as follows:

[0010] Place multiple motors side by side on a workbench, with the water inlets of their cooling water circuits located on the same side, seal each water inlet with a joint seat, seal each water outlet with a plug, insert a connecting hose into one end of the two-way plug barrel of the joint seat and tighten the fixing sleeve, and at the same time seal an inlet pipe at the other end of the two-way plug barrel of the joint seat of the first motor, connect the inlet pipe to one end of a three-way solenoid valve, and connect the other two ends of the three-way solenoid valve to an external water source and a pressure gas storage tank, respectively, so that the cooling water circuits of the multiple motors are connected in series;

[0011] First, the controller controls the three-way solenoid valve to connect the water inlet pipe to the external water source for water injection, and the injected water flows into the cooling water path of each motor through the connecting hose. When the joint seat of the last motor is not connected to the two-way plug barrel at one end of the connecting hose and water overflows, tighten the fixing sleeve so that the sealing plate seals and covers the water outlet of the two-way plug barrel;

[0012] Then the controller controls the three-way solenoid valve to cut off the external water source, so that the water inlet pipe is connected to the pressure storage tank, and then the controller controls the regulating valve to adjust the pressure value of the pressure storage tank input, so that the cooling water circuit connected in series with the motor can be tested for sealing performance at different pressure values;

[0013] When the motor leaks water, the first pressure sensor on the corresponding plug senses the pressure change in the cooling water circuit and feeds it back to the controller to stop pressurization. At the same time, the buzzer on the corresponding plug sounds an alarm.

[0014] After the test is completed, open the plug of each motor and increase the pressure value input by the pressure air storage tank to drain the water in the cooling water circuit of the motor.

[0015] In some embodiments, the regulating valve adjusts the pressure of the gas storage tank to slowly pressurize to four stages of 0.2Mpa, 0.4Mpa, 0.6Mpa, and 0.8Mpa, and water is continuously passed through each stage for 10-30 minutes.

[0016] In some embodiments, the two-way plug tube is continuously filled with water for 5 minutes after the overflow seal is established.

[0017] In some embodiments, the pressure gas storage tank continues to input for 30 minutes after the test is completed.

[0018] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0019] (1) A joint seat is detachably sealed and assembled at the water inlet of the motor, and a connecting hose or a water inlet pipe can be sealed and assembled through a two-way plug tube arranged on the joint seat, so that the cooling water paths of multiple motors are connected through the connecting hose to form a series water path. The cooling water paths of multiple motors in series can be tested for sealing performance at the same time, thereby improving the accuracy and efficiency of the test and reducing labor and time costs.

[0020] (2) A two-way plug barrel is arranged on the joint seat. When the cooling water circuit needs to be connected in series, connecting hoses are inserted at both ends of the two-way plug barrel to connect them. At the same time, the opening of the two-way plug barrel can be sealed by a sealing plate to form a closed loop in series. When the connecting hose is inserted, it passes through the first sealing ring and the second sealing ring, and is then clamped on the two-way plug barrel by a fixing sleeve to perform a double seal on the connecting hose. The sealing plate is tightened with the fixing sleeve to press the first sealing ring to ensure its sealing and avoid water leakage at the connection during testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a motor cooling water circuit sealing test device of the present invention;

[0022] Figure 2 It is a structural schematic diagram of a motor cooling water circuit sealing test device of the present invention;

[0023] Figure 3 The present invention is a flow chart of a test method of a motor cooling water circuit sealing test device.

[0024] Figure Number:

[0025] 1-motor; 2-three-way solenoid valve; 3-controller; 4-connector seat; 5-connecting hose; 6-water inlet pipe; 7-plug; 8-first pressure sensor; 9-buzzer; 10-inlet pipe; 11-one-way throttle valve; 12-regulating valve; 13-pressure gas storage tank; 14-pressure gauge; 15-second pressure sensor; 16-two-way plug barrel; 17-fixing sleeve; 18-first sealing ring; 19-sealing plate; 20-limiting block; 21-second sealing ring. DETAILED DESCRIPTION

[0026] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0027] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0028] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and test methods are omitted to prevent unnecessary details from obstructing the description of the present invention.

[0029] like Figure 1-Figure 2 As shown, a motor cooling water circuit sealing test device according to an embodiment of the present invention comprises a motor 1, a three-way solenoid valve 2, a pressure regulating assembly and a controller 3. A joint seat 4 is provided at the water inlet of the cooling water circuit of each motor 1, and the cooling water circuits of each motor 1 are connected in series through a connecting hose 5 arranged on the joint seat 4, and a water inlet pipe 6 is provided on the joint seat 4 of the first motor 1, and a plug 7 is provided at the water outlet of the cooling water circuit of each motor 1, and a first pressure sensor 8 and a buzzer 9 are provided at the plug 7; one end of the three-way solenoid valve 2 is connected to the water inlet pipe 6, one end is connected to an external water source, and one end is connected to an air intake pipe 10, and a one-way throttle valve 11 is provided at the water inlet pipe 6 for controlling water flow or gas flow; the regulating assembly is connected to the air intake pipe 10 for adjusting the water pressure in the cooling water circuit of the motor 1; the controller 3 is electrically connected to the first pressure sensor 8, the three-way solenoid valve 2 and the pressure regulating assembly, respectively.

[0030] Specifically, the pressure regulating component includes a regulating valve 12, a pressure gas storage tank 13 and a pressure gauge 14. The regulating valve 12 is connected to the pressure gas storage tank 13, and the pressure gas storage tank 13 is connected to the intake pipe 10. The pressure gauge 14 is arranged in the intake pipe 10, and a second pressure sensor 15 is arranged in the intake pipe 10. The regulating valve 12 and the second pressure sensor 15 are electrically connected to the controller 3 respectively; the controller 3 receives information from the first pressure sensor 8 and the second pressure sensor 15 to control the regulating valve 12, so that the regulating valve 12 controls the size of the air pressure output by the pressure gas storage tank 13, the second pressure sensor 15 detects the pressure value output by the pressure gas storage tank 13, and the pressure gauge 14 can display the pressure value input by the pressure gas storage tank 13.

[0031] Furthermore, the joint seat 4 is connected to the water inlet sealing assembly, and a two-way plug tube 16 is extended outward from the upper end surface of the joint seat 4, and a fixing sleeve 17 is provided on the outer side of the two-way plug tube 16. A first sealing ring 18 is provided in the fixing sleeve 17, and the water inlet pipe 6 inserted on the two-way plug tube 16 is sealed and clamped as the fixing sleeve 17 is tightened. A sealing plate 19 for sealing the upper end opening of the two-way plug tube 16 is also provided in the fixing sleeve 17. A limit block 20 is provided near the upper end surface of the water inlet inside the joint seat 4, and a second sealing ring 21 arranged on the limit block 20 is sealed and fitted with the upper end surface of the water inlet as the joint seat 4 is tightened.

[0032] In this embodiment, a joint seat 4 is detachably sealed and assembled at the water inlet of the motor 1, and a connecting hose 5 or a water inlet pipe 6 can be sealably assembled through a two-way plug tube 16 provided on the joint seat 4, so that the cooling water circuits of multiple motors 1 are connected through the connecting hose 5 to form a series water circuit. The cooling water circuits of multiple motors 1 connected in series can be tested for sealing performance at the same time, thereby improving the accuracy and efficiency of the test and reducing labor and time costs.

[0033] The two-way plug barrel 16 is arranged on the joint seat 4. When the cooling water circuit needs to be connected in series, connecting hoses 5 are inserted at both ends of the two-way plug barrel 16 for communication. At the same time, the opening of the two-way plug barrel 16 can be sealed by the sealing plate 19 to form a closed loop in series. When the connecting hose 5 is inserted, it passes through the first sealing ring 18 and the second sealing ring 21, and is then clamped on the two-way plug barrel 16 by the fixing sleeve 17, so as to perform double sealing on the connecting hose 5. The sealing plate 19 is tightened with the fixing sleeve 17 to press the first sealing ring 18 to ensure its sealing performance and avoid water leakage at the connection during testing.

[0034] Furthermore, the two-way plug barrel 16 is provided with a groove extending downward from its top surface, and the outer wall of the two-way plug barrel 16 at the groove portion is provided with an external thread, the fixing sleeve 17 is threadedly assembled and connected with the external thread section, and the outer diameter of the two-way plug barrel 16 is 1.5 mm larger than the inner diameter of the fixing sleeve 17. As the fixing sleeve 17 is tightened on the two-way plug barrel 16, the portion of the two-way plug barrel 16 at the groove will be squeezed inward by the fixing sleeve 17, thereby pressing the inserted connecting hose 5.

[0035] like Figure 3 As shown, the test method of the motor cooling water circuit sealing test device has the following operating steps:

[0036] Place multiple motors 1 side by side on the workbench, with the water inlets of their cooling water circuits on the same side, each water inlet is sealed and assembled with a joint seat 4, and each water outlet is sealed and assembled with a plug 7, and then the connecting hose 5 is inserted into one end of the two-way plug tube 16 of the joint seat 4 and the fixing sleeve 17 is tightened, and at the same time, the water inlet pipe 6 is sealed and assembled at the other end of the two-way plug tube 16 of the joint seat 4 of the first motor 1, and the water inlet pipe 6 is connected with one end of the three-way solenoid valve 2, and the other two ends of the three-way solenoid valve 2 are respectively connected with an external water source and a pressure gas storage tank 13, so that the cooling water circuits of the multiple motors 1 are connected in series.

[0037] After the assembly is completed, the sealing test is started. First, the controller 3 controls the three-way solenoid valve 2 to connect the water inlet pipe 6 with the external water source for water injection, and the injected water flows into the cooling water path of each motor 1 through the connecting hose 5. When the connector seat 4 of the last motor 1 is not connected to the two-way plug tube 16 at one end of the connecting hose 5 and water overflows, tighten the fixing sleeve 17 so that the sealing plate 19 seals and covers the water outlet of the two-way plug tube 16, and continues to inject water for 5 minutes after the two-way plug tube 16 overflows and is sealed, thereby ensuring that the cooling water paths of all motors 1 are filled with water.

[0038] Subsequently, the controller 3 controls the three-way solenoid valve 2 to cut off the external water source, connect the water inlet pipe 6 with the pressure gas storage tank 13, and start to pressurize the water inlet pipe 6. The controller 3 controls the regulating valve 12 to adjust the pressure value input by the pressure gas storage tank 13. Specifically, the regulating valve 12 adjusts the pressure gas storage tank 13 to slowly pressurize to four stages of 0.2Mpa, 0.4Mpa, 0.6Mpa, and 0.8Mpa, so that the cooling water circuit connected in series with the motor 1 can be pressure tested under different low-pressure and high-pressure conditions.

[0039] When the pressure is passed, the pressure value in the cooling water circuit is detected in real time through the first pressure sensor 8, and the water is passed for 10-30 minutes in each stage. At a certain stage, when a defect in the cooling water circuit seal of a certain motor 1 causes the motor 1 to leak, the corresponding first pressure sensor 8 senses the pressure change in the cooling water circuit. At this time, the first pressure sensor 8 will feed back the signal to the controller 3, and the controller 3 controls the pressure boosting valve to stop pressurizing. At the same time, the buzzer 9 on the corresponding plug 7 will alarm. At this time, the leaking motor 1 can be removed separately, and then the water inlet pipe 6 can be connected to continue subsequent detection without stopping, thereby improving the efficiency of detection.

[0040] After the test is completed, open the plug 7 of each motor 1, increase the pressure value of the pressure tank 13 input to discharge the water in the cooling water path of the motor 1, and continue to input the pressure tank 13 for 30 minutes after the test is completed, so as to blow out the water in the cooling water path and make the inside of the cooling water path dry. Then the whole detection process is completed and repeated for the next round of sealing detection of the cooling water paths of multiple motors 1.

[0041] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A motor cooling water circuit sealing test device, characterized in that: include: Multiple motors, each of which has a joint seat at the water inlet of the cooling water path of the motor, and the cooling water paths of each motor are connected in series through a connecting hose provided on the joint seat, and a water inlet pipe is provided on the joint seat of the first motor, and a plug is provided at the water outlet of the cooling water path of each motor, and a first pressure sensor and a buzzer are provided at the plug; A three-way solenoid valve, one end of which is connected to the water inlet pipe, one end of which is connected to an external water source, and one end of which is connected to an air inlet pipe; A pressure regulating component, the regulating component is communicated with the air inlet pipe and is used to regulate the water pressure in the cooling water path of the motor; A controller is electrically connected to the first pressure sensor, the three-way solenoid valve and the pressure regulating assembly respectively.

2. The motor cooling water circuit sealing test device according to claim 1, characterized in that: The pressure regulating assembly includes a regulating valve, a pressure gas storage tank and a pressure gauge. The regulating valve is connected to the pressure gas storage tank, and the pressure gas storage tank is connected to the intake pipe. The pressure gauge is arranged in the intake pipe, and a second pressure sensor is arranged in the intake pipe. The regulating valve and the second pressure sensor are electrically connected to the controller respectively.

3. The motor cooling water circuit sealing test device according to claim 2, characterized in that: The joint seat is sealingly assembled and connected to the water inlet, and a two-way plug barrel is extended outward from the upper end surface of the joint seat, a fixing sleeve is provided on the outside of the two-way plug barrel, a first sealing ring is provided in the fixing sleeve, and the water inlet pipe inserted on the two-way plug barrel is sealed and clamped as the fixing sleeve is tightened, and a sealing plate is also provided in the fixing sleeve to seal the upper end opening of the two-way plug barrel.

4. The motor cooling water circuit sealing test device according to claim 3, characterized in that: A limit block is provided inside the joint seat near the upper end surface of the water inlet, and the second sealing ring provided on the limit block is sealed and fitted with the upper end surface of the water inlet as the joint seat is tightened.

5. The motor cooling water circuit sealing test device according to claim 1, characterized in that: A one-way throttle valve is arranged at the water inlet pipe.

6. A method for testing the sealing of a motor cooling water circuit, characterized in that: The sealing test device comprising any one of claims 1 to 5 has the following operating steps: Place multiple motors side by side on a workbench, with the water inlets of their cooling water circuits located on the same side, seal each water inlet with a joint seat, seal each water outlet with a plug, insert a connecting hose into one end of the two-way plug barrel of the joint seat and tighten the fixing sleeve, and at the same time seal an inlet pipe at the other end of the two-way plug barrel of the joint seat of the first motor, connect the inlet pipe to one end of a three-way solenoid valve, and connect the other two ends of the three-way solenoid valve to an external water source and a pressure gas storage tank, respectively, so that the cooling water circuits of the multiple motors are connected in series; First, the controller controls the three-way solenoid valve to connect the water inlet pipe to the external water source for water injection, and the injected water flows into the cooling water path of each motor through the connecting hose. When the joint seat of the last motor is not connected to the two-way plug barrel at one end of the connecting hose and water overflows, tighten the fixing sleeve so that the sealing plate seals and covers the water outlet of the two-way plug barrel; Then the controller controls the three-way solenoid valve to cut off the external water source, so that the water inlet pipe is connected to the pressure storage tank, and then the controller controls the regulating valve to adjust the pressure value of the pressure storage tank input, so that the cooling water circuit connected in series with the motor can be tested for sealing performance at different pressure values; When the motor leaks water, the first pressure sensor on the corresponding plug senses the pressure change in the cooling water circuit and feeds it back to the controller to stop pressurization. At the same time, the buzzer on the corresponding plug sounds an alarm. After the test is completed, open the plug of each motor and increase the pressure value input by the pressure air storage tank to drain the water in the cooling water circuit of the motor.

7. The motor cooling water circuit sealing test method according to claim 6, characterized in that: The regulating valve adjusts the pressure of the gas storage tank to slowly pressurize it to four stages of 0.2Mpa, 0.4Mpa, 0.6Mpa, and 0.8Mpa, and water is continuously passed through each stage for 10-30 minutes.

8. The motor cooling water circuit sealing test method according to claim 6, characterized in that: After the two-way plug tube is overflow-sealed, continue to inject water for 5 minutes.

9. The motor cooling water circuit sealing test method according to claim 6, characterized in that: After the test is completed, the pressure gas tank continues to input for 30 minutes.

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