Underwater Application Scenario Simulation Device for Testing the Waterproof Performance of Electric Motors

Abstract

The present invention relates to an underwater application scenario simulation device for detecting the waterproof performance of a motor. An underwater application scenario simulation device for detecting the waterproof performance of a motor, comprising a workbench, on which a detection box and a flipping drive assembly are provided. The detection box has a fixed part for connecting with the workbench and a movable part for connecting with the flipping drive assembly. The fixed part of the detection box is rotatably fixed to the workbench. The detection box forms a receiving cavity. The top of the detection box is provided with a motor mounting position for fixing the motor to be detected. At the motor mounting position on the top, there is a through groove penetrating through the inside and outside to communicate with the receiving cavity. The detection box is connected to a pressurizing device through an air pipe. The movable part rotates around the fixed part under the action of the flipping drive assembly. The present invention has the advantages that it is not necessary to sink the entire motor into water, which is convenient for the disassembly and assembly of the motor, occupies less space on the workbench, and is convenient for detecting the waterproof performance.

Description

Technical Field

[0001] The present invention relates to a waterproof detection device for motors, and particularly to an underwater application scenario simulation device for detecting the waterproof performance of motors. Background Art

[0002] For motors with relatively low requirements for waterproof performance, the waterproof performance is mostly detected by spraying with a water gun or immersing the motor to be detected in a water tank. Underwater robots mostly use motors for driving to achieve walking. Their motors have relatively high requirements for waterproof performance. The motors are located inside the sealed robot housing, but the motor output shaft must be connected to the load, and there is a possibility that water enters the motor through the motor output end.

[0003] For motors with relatively high requirements for waterproof performance, the motor needs to be placed in water tanks with different water depths and the motor is started to simulate the actual use scenario of the motor, and then the waterproof performance of the motor is detected by detecting the magnitude of the current. Water tanks of different heights occupy a large space, and the placement, removal, and power-on of the motor are all relatively troublesome. Summary of the Invention

[0004] The purpose of the present invention is to provide an underwater application scenario simulation device for detecting the waterproof performance of motors, which is convenient for detecting the waterproof performance of motors.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: An underwater application scenario simulation device for detecting the waterproof performance of motors, including a workbench, a detection box and a flipping drive assembly are provided on the workbench. The detection box has a fixed part for connecting with the workbench and a movable part for connecting with the flipping drive assembly. The fixed part of the detection box is rotatably fixed to the workbench. The detection box forms a receiving cavity. A motor mounting position for fixing the motor to be detected is provided at the top of the detection box. A through groove that penetrates inside and outside to communicate with the receiving cavity is provided at the motor mounting position at the top. The motor to be detected is fixed to the top plate to close the through groove. The detection box is connected to a pressurizing device through an air pipe, and the inner cavity of the air pipe communicates with the receiving cavity. The movable part rotates around the fixed part under the action of the flipping drive assembly, and the motor to be detected fixed on the upper side of the detection box is moved to the side of the detection box.

[0006] When using the device of the present invention, the motor to be detected is fixed at the motor installation position on the top plate of the detection box. Then, water is injected into the detection box. At this time, the water in the detection box has not yet come into contact with the motor output end. Finally, high-pressure air is injected into the detection box through a pressurizing device. Then, the detection box is flipped through a flipping drive assembly to turn the vertically arranged motor into a horizontally arranged motor, and the water is made to overflow through the through groove so that the water comes into contact with the motor output end. Then, the motor to be detected is started and the waterproof performance is detected through other equipment. After the waterproof performance detection is completed, the detection box is reset through the flipping drive assembly, and finally the motor is removed. Among them, the motor to be detected can be fixed to the detection box in various ways. Among them, in the pressurizing device, the air can be pressurized through a booster pump, or the air pressure can be adjusted through a precision pressure regulating valve. The motor of the present invention is located outside the detection box during installation, detection, and disassembly. It is not necessary to submerge the entire motor in water, which is convenient for the disassembly and assembly of the motor, and there is no need to worry about the water being splashed everywhere when the motor is taken out, which is convenient for workers to detect the waterproof performance of the motor. Moreover, the present invention realizes the change of water pressure by pressurization to simulate different water depths, so as to facilitate the detection of the waterproof performance of the motor under different water depths. Among them, the present invention is provided with a flipping drive assembly, which can flip the motor to turn the vertically arranged motor into a horizontally arranged motor, so that the waterproof performance test can be carried out without filling the detection box with water, and it can also be used for the flipping simulation when the motor shaft is horizontal during actual use.

[0007] Preferably, the flipping drive assembly includes a linear telescopic drive mechanism. One end of the linear telescopic drive mechanism is rotatably fixed to the workbench, and the other end of the linear telescopic drive mechanism is rotatably fixed to the movable part of the detection box. The detection box is flipped by the telescopic movement of the linear telescopic drive mechanism, so that the space occupied on the workbench is smaller.

[0008] Preferably, the workbench includes an upper fixing plate and a lower fixing plate. The lower fixing plate is located below the upper fixing plate. The fixed part of the detection box is rotatably fixed to the upper fixing plate. The upper end of the linear telescopic drive mechanism is rotatably fixed to the movable part of the detection box, and the lower end of the linear telescopic drive mechanism is rotatably fixed to the lower fixing plate. The upper fixing plate is provided with a through groove that runs through up and down for the linear telescopic drive mechanism to pass through. The lower fixing plate is provided to make the part of the linear telescopic drive mechanism located above the workbench less, so as to reduce the space occupied above the workbench.

[0009] Preferably, the fixed part is located in front of the movable part, and the motor installation position deviates from the rear end of the top plate of the detection box. Since the motor installation position deviates from the rear end of the top plate of the detection box, and the movable part flips forward with the fixed part as the center, less water can be poured into the detection box.

[0010] Preferably, an air pipe connector and a water pipe connector are provided at the rear end of the detection box. The air pipe connector is located on the upper side of the detection box and is used for connecting with an air pipe, and the water pipe connector is located on the lower side of the detection box and is used for connecting with a water pipe. The position of the water pipe connector is convenient for discharging the water in the detection box, and the position of the air pipe connector is convenient for introducing high-pressure air.

[0011] Preferably, an observation window is provided on the side plate of the detection box. The observation window is offset from the motor installation position and is close to the rear end of the detection box. The water level in the detection box can be known through the observation window. The position of the observation window can be set so that when the water surface can be seen through the observation window, the water can submerge all the motors to be detected after the detection box is flipped.

[0012] Preferably, a sealing structure is provided around the output end of the motor installation position and the motor to be detected; a flange matching the output end of the motor to be detected is provided at the motor installation position. A flange is provided at the through groove. According to the structure of the front end cover or connecting plate at the front end of the motor to be detected, a flange with a matching structure is selected, and a conventional flange sealing structure is used to prevent water from leaking out through the through groove. At the same time, the motor to be detected can be fixed to the detection box by using a fastening method.

[0013] Preferably, a plurality of partition plates are provided on the lower side of the top plate. The partition plates divide the accommodation cavity into several chambers that are independent of each other at the upper end and communicate with each other at the lower end. A plurality of motor installation positions are provided on the top plate, and each motor installation position corresponds to one of the chambers. The partition plates are provided to prevent the output ends of two adjacent motors to be detected from affecting each other.

[0014] Preferably, a simulated load is provided on the output shaft of the motor to be detected. The simulated load is provided to make the detection of the motor to be detected closer to the actual use scenario and improve the detection accuracy.

[0015] Preferably, the simulated load has a spiral blade structure, and the simulated load has a fixing groove that penetrates and is in clearance fit with the output shaft of the motor to be detected. When the output shaft of the motor rotates, the simulated load of the spiral blade rotates, and the spiral blade pushes the water away from the side of the motor to be detected, so that the simulated load has a tendency to move towards the side of the motor to be detected. It is not necessary to tightly fix or tightly fit the simulated load with the output shaft of the motor to be detected, which is convenient for workers to install and disassemble the simulated load. Among them, the inner wall structure of the fixing groove is set according to the structure of the output shaft of the motor to be detected. When the cross-section of the output shaft of the motor to be detected is D-shaped, a fixing groove with a D-shaped cross-section is selected; when there is a keyway on the output shaft of the motor to be detected, a corresponding keyway is provided on the fixing groove so that the simulated load is key-connected to the output shaft.

[0016] The present invention has the advantages that it is not necessary to sink the entire motor into water, which is convenient for the disassembly and assembly of the motor, occupies less space on the workbench, and is convenient for waterproof performance detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present invention;

[0018] Figure 2 is another schematic structural diagram of the present invention;

[0019] Figure 3 is a schematic structural diagram when the motor mounting position on the top plate of the present invention is fixed to the motor to be detected. DETAILED DESCRIPTION OF THE INVENTION

[0020] The present invention will be further described below with reference to the drawings and specific embodiments.

[0021] As shown by Figures 1 to 3 a water application scenario simulation device for detecting the waterproof performance of a motor according to the present invention includes a workbench, on which a detection box 2 and a flipping drive assembly are provided. The workbench includes an upper fixing plate 11 and a lower fixing plate 12, and the lower fixing plate 12 is located below the upper fixing plate 11. The flipping drive assembly includes a linear telescopic drive mechanism 4. The lower end of the linear telescopic drive mechanism 4 is rotatably fixed to the lower fixing plate 12 of the workbench, and the upper end of the linear telescopic drive mechanism 4 is rotatably fixed to the movable part 222 of the detection box 2. The fixed part 221 of the detection box 2 is rotatably fixed to the upper fixing plate 11, and the upper fixing plate 11 is provided with a through groove 13 that penetrates up and down for the linear telescopic drive mechanism 4 to pass through.

[0022] The detection box 2 is a box-shaped structure with a receiving cavity formed by a top plate 21, a bottom plate, and four side plates. The side plates on the left and right sides of the detection box 2 are both formed with a fixed part 221 for connecting to the workbench and a movable part 222 for connecting to the flipping drive assembly. The fixed part 221 is located in front of the movable part 222. The top plate 21 of the detection box 2 is provided with a motor mounting position for fixing the motor 3 to be detected. The motor mounting position deviates from the rear end of the top plate 21 of the detection box 2. The detection box 2 is connected to a pressurizing device through an air pipe, and the inner cavity of the air pipe communicates with the receiving cavity. The movable part 222 rotates around the fixed part 221 under the action of the flipping drive assembly, and the motor 3 to be detected fixed on the upper side of the detection box 2 is moved to the front side of the detection box 2.

[0023] The motor mounting position on the top plate 21 has a through groove that penetrates inside and outside to communicate with the receiving cavity. A sealing structure is provided around the output end of the motor mounting position and the motor 3 to be detected. The motor mounting position is provided with a flange 23 that matches the output end of the motor 3 to be detected. The upper end surface of the flange 23 is a stop structure that matches the connecting plate 31 at the output end of the motor 3 to be detected, and an annular groove 231 for placing an O-ring is formed on the upper end surface of the flange 23. The connecting plate 31 of the motor 3 to be detected is fixed to the flange 23 through fasteners to close the through groove.

[0024] At the rear end of the detection box 2, there are an air pipe connector 24 and a water pipe connector 25. The air pipe connector 24 is located on the upper side of the detection box 2 and is used to connect with the air pipe, and the water pipe connector 25 is located on the lower side of the detection box 2 and is used to connect with the water pipe. An observation window 26 is provided on the right side plate of the detection box 2. The observation window 26 is offset from the flange 23 of the motor installation position and is close to the rear end of the detection box.

[0025] Several partition plates 27 are provided on the lower side of the top plate 21. Six motor installation positions are provided on the top plate 21 to have six flanges. The several partition plates 27 divide the accommodation cavity into several chambers that are independent of each other at the upper end and communicate with each other at the lower end. Each chamber corresponds to a motor installation position. When the connecting plate 31 of the motor 3 to be detected is fixed to the flange 23, a simulation load 33 is arranged on the output shaft 32 of the motor 3 to be detected. The simulation load 33 is in a spiral blade structure. The simulation load 33 has a fixing groove that penetrates and has a clearance fit with the output shaft 32 of the motor to be detected.

[0026] When using the device of the present invention, first, the simulation load is sleeved on the output shaft of the motor to be detected, and then the motor to be detected is fixed at the motor installation position on the top plate of the detection box. The flange structure and the O-ring are used to seal between the flange and the connecting plate of the motor to be detected. Then, water is injected into the detection box through the water pipe and the water rises to the position visible through the observation window. At this time, the water in the detection box has not contacted the output shaft of the motor to be detected. Then, high-pressure air is injected into the detection box through the air pipe and the pressurizing device. Subsequently, the 90° flipping of the detection box is realized through the flipping drive assembly, so that the vertically arranged motor becomes a horizontally arranged motor, and the water floods through the through groove so that the water contacts the output end of the motor. Then, the motor to be detected is started and the waterproof performance is detected through other devices; after the waterproof performance detection is completed, the detection box is reset through the flipping drive assembly, and finally the motor is removed.

[0027] The present invention has the advantages that it is not necessary to sink the entire motor into water, which is convenient for the disassembly and assembly of the motor, occupies less space on the workbench, and is convenient for the waterproof performance detection.

Claims

1. An underwater application scenario simulation device for detecting the waterproof performance of a motor, characterized in that The invention comprises a workbench, on which a detection box and a flip driving assembly are arranged, the detection box has a fixed part for connecting with the workbench and a movable part for connecting with the flip driving assembly, the detection box fixed part is rotatably fixed to the workbench, the detection box is formed with a accommodating cavity, the detection box top plate is provided with a motor mounting position for fixing the motor to be detected, the motor mounting position of the top plate has a through groove penetrating inside and outside to communicate with the accommodating cavity, the motor to be detected is fixed to the top plate to close the through groove, the detection box is connected with the boosting device through an air pipe, the inner cavity of the air pipe is communicated with the accommodating cavity, and the movable part is connected with the workbench to form a accommodating cavity, and the detection box is connected with the boosting device through the air pipe, the inner cavity of the air pipe is communicated with the accommodating cavity, and the movable part is connected with the workbench to form a accommodating cavity. The movable part rotates with the fixed part as the center under the action of the flip driving assembly, and moves the motor to be detected fixed on the upper side of the detection box to the side of the detection box, the fixed part is located in front of the movable part, and the motor installation position deviates from the rear end of the top plate of the detection box; the rear end of the detection box is provided with an air pipe connector and a water pipe connector, the air pipe connector is located on the upper side of the detection box and is used to connect with the air pipe, and the water pipe connector is located on the lower side of the detection box and is used to connect with the water pipe; an observation window is provided on the side panel of the detection box, and the observation window deviates from the motor installation position and is close to the rear end of the detection box; a simulated load is provided on the output shaft of the motor to be detected; First, put the simulated load on the output shaft of the motor to be tested, and then fix the motor to be tested on the motor installation position of the top plate of the test box. The flange structure and the O-ring are used to seal the flange and the connecting plate of the motor to be tested. Then, water is injected into the test box through the water pipe and the water rises to a position visible through the observation window. At this time, the water in the test box has not yet contacted the output shaft of the motor to be tested. High-pressure air is then injected into the test box through the air pipe and the booster device. Then, the test box is flipped 90 degrees by flipping the drive assembly to turn the vertically arranged motor into a horizontally arranged motor, and the water is allowed to overflow the groove to make the water contact the output end of the motor. Then, the motor to be tested is started for waterproof performance testing.

2. The underwater application scenario simulation device for detecting the waterproof performance of a motor according to claim 1, characterized in that The flip drive assembly comprises a linear telescopic drive mechanism, one end of which is rotatably fixed to the workbench, and the other end of which is rotatably fixed to the movable part of the detection box.

3. The underwater application scenario simulation device for detecting the waterproof performance of a motor according to claim 2, characterized in that The workbench includes an upper fixed plate and a lower fixed plate, the lower fixed plate is located at the lower side of the upper fixed plate, the fixed part of the detection box is rotatably fixed to the upper fixed plate, the upper end of the linear telescopic drive mechanism is rotatably fixed to the movable part of the detection box, the lower end of the linear telescopic drive mechanism is rotatably fixed to the lower fixed plate, and the upper fixed plate is provided with a clearance groove which runs through from top to bottom for the linear telescopic drive mechanism to pass through.

4. The underwater application scenario simulation device for detecting the waterproof performance of a motor according to claim 1, characterized in that A sealing structure is provided around the motor installation position and the output end of the motor to be detected; and a flange matching with the output end of the motor to be detected is provided at the motor installation position.

5. The underwater application scenario simulation device for detecting the waterproof performance of a motor according to claim 1, characterized in that A plurality of partitions are arranged on the lower side of the top plate, and the partitions are used to divide the accommodating cavity into a plurality of chambers whose upper ends are independent from each other and whose lower ends are interconnected with each other. A plurality of motor mounting positions are arranged on the top plate, and each motor mounting position corresponds to one of the chambers.

6. The underwater application scenario simulation device for detecting the waterproof performance of a motor according to claim 1, characterized in that The simulated load is in the form of a spiral fan blade structure, and has a fixing groove penetrating therethrough to be gap-matched with the output shaft of the motor to be detected.

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