Motor sealing performance detection device

Abstract

The invention discloses a motor leakproofness detection device, and particularly relates to the technical field of motor leakproofness test.The motor leakproofness detection device comprises a detection box used for leakproofness testing, a testing assembly used for testing is arranged at the bottom of an inner cavity of the detection box, and two placement mechanisms are arranged at the top of the testing assembly; to-be-tested motor shells are placed in the two placement mechanisms respectively, a partition plate is arranged at the top of an inner cavity of the detection box, and a transmission mechanism is further arranged at the top of the partition plate. According to the motor sealing performance detection device provided by the invention, through cooperation of the separation assembly and the test assembly, a complete process of impurity lifting, rotary scraping, directional collection and concentrated discharge is formed, and the problems of false leakage and time consumption of manual cleaning caused by blockage of a sealing surface by impurities in an existing device can be effectively solved; the impurity cleaning efficiency is effectively improved, the water body can be emptied without shutdown, and secondary pollution of the impurities to the test water body is avoided.

Description

Technical Field

[0001] This invention relates to the field of motor sealing test technology, and in particular to a motor sealing test device. Background Technology

[0002] As the core power component of various electrical equipment, the sealing performance of motors directly determines the operational reliability and service life of the equipment. In applications such as automotive wiper motors, washing machine drum motors, and mining industrial motors, if the motor has sealing defects (such as leakage at the housing joints or poor sealing of the junction box), external media such as water, dust, and corrosive gases can enter the motor, leading to faults such as winding short circuits, bearing corrosion, and rotor jamming. These problems can range from minor equipment downtime to serious safety accidents (such as driving hazards caused by automotive motor failures). Therefore, high-precision and high-efficiency sealing tests on the motor housing are crucial during the motor manufacturing process.

[0003] Chinese Patent Publication No. CN117906852A discloses a motor housing sealing performance testing device, including a water pressure type testing component 100 and a water storage tank 200. The water pressure type testing component 100 includes a testing container 101 and a motor housing lifting device 102. The testing container 101 is provided with a connecting liquid level pipe 103, which is connected to the interior of the testing container 101. The sealing performance of the motor housing to be tested is converted into the amount of water displaced and reflected in the change of water level in the connecting liquid level pipe, realizing the visualization and quantification of the sealing performance. This makes it easier for users to judge the sealing performance of the motor housing to be tested more clearly and intuitively. By changing the different positions of the motor housing to be tested in the testing container, the different depths of the motor housing in the water are simulated. The water pressure on the motor housing is used as a testing condition, making the test results closer to the actual situation and improving the accuracy of the sealing performance test.

[0004] However, the above-mentioned patent documents still have the following defects in practice; Although the aforementioned patent document device can perform sealing tests on the motor housing, it cannot simultaneously filter water during the testing process, which may cause impurities to clog the sealing surface of the motor housing, resulting in false leaks. Summary of the Invention

[0005] The main objective of this invention is to provide a motor sealing performance testing device that can effectively solve the problems raised in the background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A motor sealing performance testing device includes a testing chamber for sealing performance testing. A testing assembly for testing is located at the bottom of the chamber's inner cavity. Two placement mechanisms are located on the top of the testing assembly, each containing a motor housing to be tested. A partition is located at the top of the chamber's inner cavity, and a transmission mechanism is located on top of the partition. The transmission mechanism cooperates with the placement mechanisms to press the motor housing into the testing assembly for testing. A drying mechanism is located at the bottom of the partition to dry the motor housing, and this drying mechanism cooperates with the internal structure of the placement mechanisms to separate impurities after testing.

[0007] Preferably, the testing assembly includes two water buckets located on the left and right sides of the bottom of the testing chamber. The inner walls of the two water buckets are provided with a plurality of sliding grooves distributed in a ring. The upper surface of the water buckets is provided with a plurality of through holes distributed in a ring for discharging impurities. The upper surface of the outer surfaces of the two water buckets is provided with semi-circular annular grooves for holding impurities. The bottom side of each of the two semi-circular annular grooves is provided with a discharge pipe communicating with it. The bottom of the two discharge pipes is provided with a storage bucket for collecting impurities.

[0008] Preferably, the placement mechanism includes two separation components slidably disposed on the inner walls of several grooves on the same side. The top of the separation components is also provided with a base plate for placing the motor housing. A bottom block that engages with the bottom of the motor housing is connected to the middle of the base plate by screws. Telescopic columns are respectively provided on both sides of the top of the base plate. A top plate is provided on the top of the two telescopic columns. A top block that engages with the top of the motor housing is connected to the bottom of the top plate by screws. A locking component is also provided on the top of the top plate.

[0009] Preferably, the separation assembly includes a slip ring that slides on the inner wall of the chute. A conical filter plate is provided at the bottom of the slip ring. Two through holes are distributed in a ring at the bottom of the slip ring surface. A rotating cylinder is rotatably provided in the middle of the filter plate. Balls are distributed in a ring on the outer surface of the rotating cylinder. A rubber bellows is provided at the top of the rotating cylinder. A spring for pushing is provided in both the rubber bellows and the inner cavity of the rotating cylinder. A spline bushing is also provided inside the spring. A scraper that fits against the surface of the filter plate is provided at the bottom of the rubber bellows. During the rotation of the rubber bellows, the scraper drives the filter plate to rotate synchronously and scrape off surface impurities.

[0010] Preferably, the engaging assembly includes a circular block disposed on the top of the top plate, the top of the circular block having a plurality of grooves distributed in a ring, each of the grooves having a spring, each spring having a protrusion on its top, and the top of the circular block also having a movable cavity.

[0011] Preferably, the transmission mechanism includes two sliding columns slidably disposed on both sides of the top of the partition. The bottom of the two sliding columns penetrates the interior of the drying mechanism and is disposed in the inner cavity of the movable cavity. The shape of the bottom of the sliding column corresponds to the inner cavity of the movable cavity. A pressure plate is disposed on the top of the two sliding columns. An electric telescopic cylinder is disposed on the top of the pressure plate. A motor for driving is also disposed on the rear side of the partition.

[0012] Preferably, the drying mechanism includes several support rods arranged on one side of the top of two water buckets, and the top of several support rods on the same side is provided with a baffle tube. Hot air blowers are arranged on both sides of the rear cavity of the detection box, and rotating components are arranged on the top of the two baffle tubes.

[0013] Preferably, the rotating assembly includes a pulley rotatably disposed on one side of the bottom of the partition and two rotating rings rotatably disposed on the top of the baffle tube on the same side. The inner cavities of the two rotating rings are each provided with a plurality of connecting rods arranged in a ring. A rotating block is provided in the middle of the plurality of connecting rods. The bottom of the two rotating blocks is provided with a concave hole corresponding to the convex post. Two levers are symmetrically disposed on the outer surfaces of the two rotating rings.

[0014] Preferably, the bottoms of the two dial plates are attached to the inner walls of the two semi-circular annular grooves on the same side, and the dial plates are used to scrape off the impurities collected inside the two semi-circular annular grooves during rotation, which then fall into the two discharge pipes.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In this invention, by combining the water pressure environment of the test components with the air pressure injection of the high-pressure air pump, the problems of missing small leaks in a single water pressure test and difficulty in locating the leak location in a single air pressure test can be effectively avoided. At the same time, this composite mode can simulate the working conditions of water immersion + internal micro-positive pressure in the actual use of motors (such as washing machine motors and car wading motors), effectively improving the detection effect.

[0016] 2. In this invention, the coordinated operation of the separation component and the testing component forms a complete process of "impurity lifting, rotation scraping, directional collection, and centralized discharge". This effectively solves the problems of false leakage caused by impurities clogging the sealing surface of existing devices and the time-consuming manual cleaning, effectively improving the efficiency of impurity cleaning, eliminating the need to stop the machine to drain the water, and avoiding secondary pollution of the test water by impurities.

[0017] 3. In this invention, the air-drying mechanism drives the motor housing to rotate 360° in both directions. Combined with the hot air covering inside, the moisture on the surface and deep cavity of the motor can be evaporated evenly. Compared with traditional natural air drying, this effectively shortens the drying time. At the same time, its internal structure can prevent water droplets from splashing during the drying process, allowing the water droplets to flow back into the water bucket. This avoids the vicious cycle of water droplets carrying impurities and polluting the water body, which is common in existing devices, and effectively improves the reusability of the test water body.

[0018] 4. In this invention, by setting two placement mechanisms in conjunction with the movement of the transmission mechanism, the "clamping, testing, and unclamping" operations of two motor housings can be performed simultaneously. Compared with the traditional single-station device, it effectively shortens the testing cycle and can adapt to the cycle time requirements of mass motor production lines. In addition, the automated drive of the transmission mechanism replaces manual clamping, avoiding the problem of inconsistent parameters caused by manual operation, thereby ensuring the stability of the testing results of each station. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the test components and placement mechanism of the present invention; Figure 4 This is a schematic cross-sectional view of the test component of the present invention; Figure 5 This is a schematic cross-sectional view of the placement mechanism of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle; Figure 7 This is a schematic cross-sectional view of the separation component of the present invention; Figure 8 This is a cross-sectional structural diagram of the transmission mechanism and the drying mechanism of the present invention; Figure 9 This is a schematic diagram of the cross-sectional structure of the air-drying mechanism of the present invention from another perspective; Figure 10 This is a schematic cross-sectional view of the rotating component of the present invention.

[0020] In the diagram: 1. Testing box; 2. Testing assembly; 21. Water bucket; 22. Through hole one; 23. Slide groove; 24. Semi-circular annular groove; 25. Material drop pipe; 26. Storage bucket; 3. Placement mechanism; 31. Separation assembly; 311. Slip ring; 312. Filter plate; 313. Through hole two; 314. Rotary drum; 315. Ball; 316. Spring two; 317. Splined bushing; 318. Rubber bellows; 32. Base plate; 33. Telescopic column; 34. Top plate; 5. Engaging assembly; 351. Round block; 352. Spring 1; 353. Movable cavity; 354. Protruding column; 4. Motor housing; 5. Partition plate; 6. Drying mechanism; 61. Support rod; 62. Baffle tube; 63. Hot air blower; 64. Rotating assembly; 641. Pulley; 642. Rotating block; 643. Connecting rod; 644. Rotary ring; 645. Paddle plate; 7. Transmission mechanism; 71. Motor 1; 72. Electric telescopic cylinder; 73. Sliding column; 74. Pressure plate. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] Before implementation, this solution requires the installation of a visual sensor, which is based on existing technology, inside the test component 2. When the sensor enters the test component 2 through the motor housing 4 to conduct a water pressure test, it can confirm whether any water bubbles emerge to check the sealing performance of the motor housing 4.

[0023] Before actual use, a high-pressure air pump (as in the prior art) needs to be installed on the top side of the partition 5. The output end of the high-pressure air pump is connected to a hose that passes through the top structure of the placement mechanism 3. Then, the internal structure of the transmission mechanism 7 is activated to drive the internal structure of the placement mechanism 3 to descend. During the descent, the motor housing 4 placed on top of the placement mechanism 3 is sealed simultaneously. After the sealed motor housing 4 enters the pre-injected water inside the test assembly 2, it is connected to the top structure of the placement mechanism 3 through a hose. The high-pressure air pump is activated to inject a certain MPa of air pressure through the hose, which then enters the motor housing 4 through the placement mechanism 3 for air pressure testing.

[0024] Example 1, as Figures 1 to 10 As shown, a motor sealing performance testing device includes a testing assembly 2 at the bottom of the inner cavity of a testing chamber 1, two placement mechanisms 3 at the top of the testing assembly 2, and motor housings 4 to be tested placed inside the two placement mechanisms 3 respectively. A partition 5 is provided at the top of the inner cavity of the testing chamber 1, and a transmission mechanism 7 is also provided at the top of the partition 5. The transmission mechanism 7 cooperates with the placement mechanisms 3 to press the motor housings 4 into the testing assembly 2 for testing. A drying mechanism 6 is also provided at the bottom of the partition 5 to dry the motor housings 4, and the drying mechanism 6 cooperates with the internal structure of the placement mechanisms 3 to separate impurities after testing.

[0025] In this case, a test assembly 2 is installed at the bottom of the inner cavity of the test chamber 1. The operator opens the protective door at the front of the test chamber 1 and injects a certain amount of water into the test assembly 2. Two placement mechanisms 3 are installed on the top of the test assembly 2. The operator directly places the motor housing 4 to be tested into the two placement mechanisms 3. A partition 5 is also installed at the top of the inner cavity of the test chamber 1, and a transmission mechanism 7 is installed on top of the partition 5. By activating the internal structure of the transmission mechanism 7, the two placement mechanisms 3 are driven to descend synchronously. During the descent of the placement mechanisms 3, the motor housing 4 placed inside the placement mechanisms 3 is pressed down, sealing the motor housing 4 and simultaneously driving the internal structure of the placement mechanisms 3 into the test assembly 2 for water pressure testing. 4. When it descends to the set position, start the high-pressure air pump and inject a certain pressure of gas into the motor housing 4 through the hose to test the sealing performance of the motor housing 4. If no bubbles emerge from the water surface inside the test component 2 while the air pressure is applied to the motor housing 4, it means that the sealing performance of the motor housing 4 is qualified. When the visual sensor detects that bubbles emerge, it means that the sealing performance of the motor housing 4 is unqualified or that the cavity of the motor housing 4 was not sealed well in the early stage. At this time, the placement mechanism 3 and the motor housing 4 are lifted to the initial position through the internal structure of the transmission mechanism 7, and the staff checks the sealing of other cavities of the motor housing 4. After the test is completed, the internal structure of the placement mechanism 3 is lowered into the test component 2 by starting the transmission mechanism 7 for a second test. After the test is completed, the internal structure of the transmission mechanism 7 is activated to lift the placement mechanism 3 and the motor housing 4 upwards. When the placement mechanism 3 and the motor housing 4 reach their initial positions, the transmission mechanism 7 continues to lift them, causing the bottom structure of the placement mechanism 3 to detach from the water inside the test assembly 2. During the upward movement of the internal structure of the placement mechanism 3, impurities such as metal fragments and wear particles from the motor housing 4 that fell during the test can be simultaneously separated from the water inside the test assembly 2. Furthermore, a drying mechanism 6 is installed at the bottom of the partition 5 to dry the motor housing 4. The motor housing 4 is then lifted... After being lifted into the internal structure of the drying mechanism 6, the internal structure of the transmission mechanism 7 is activated to drive the internal structure of the drying mechanism 6 and the motor housing 4 placed inside the placement mechanism 3 to rotate. During the rotation, the internal structure of the drying mechanism 6 is activated simultaneously to blow hot air out of the rotating motor housing 4 to dry it. At the same time, the rotation of the internal structure of the drying mechanism 6 drives the internal structure of the placement mechanism 3 to rotate synchronously, so that the placement mechanism 3 scrapes the separated impurities into the internal structure of the test component 2 for collection, avoiding metal debris and wear particles of the seals from clogging the sealing gaps of the next motor housing 4, effectively improving the test results of the next motor housing 4.

[0026] Example 2: In order to test the motor housing 4, refer to... Figure 3 and Figure 4 In this scheme, the test component 2 includes two water buckets 21 located on the left and right sides of the bottom of the test box 1. The inner walls of the two water buckets 21 are provided with a number of sliding grooves 23 distributed in a ring. The upper surface of the water buckets 21 is provided with a number of through holes 22 for discharging impurities. The upper surface of the outer surface of the two water buckets 21 is provided with a semi-circular annular groove 24 for holding impurities. The bottom side of the two semi-circular annular grooves 24 is also provided with a discharge pipe 25 communicating with them. The bottom of the two discharge pipes 25 is provided with a storage bucket 26 for collecting impurities.

[0027] In the above process, by opening the protective door at the front of the detection box 1, a set amount of water is injected into the inner cavities of the two water buckets 21 located on the left and right sides of the bottom of the detection box 1. The internal structure of the placement mechanism 3 slides in the inner cavity of the slide groove 23 on the same side. When the internal structure of the placement mechanism 3 lifts and rotates to scrape off the separated impurities, the scraped impurities fall directly into the inner cavity of the semi-circular annular groove 24 through the through hole 22 for collection. Then, the bottom side of the two semi-circular annular grooves 24 is also provided with a discharge pipe 25 that communicates with them. During the rotation of the internal structure of the drying mechanism 6, the impurities collected in the semi-circular annular grooves 24 can be scraped into the two discharge pipes 25, and the impurities can fall directly into the inner cavity of the storage bucket 26 at the bottom of the two discharge pipes 25 for collection.

[0028] Specifically, in order to achieve the goal of sealing the motor housing 4 during its descent into the water tank 21 for testing and separating impurities during the subsequent lifting process, refer to... Figure 3 , Figure 5 , Figure 6 and Figure 7 In this scheme, the placement mechanism 3 includes two separation components 31 that are slidably disposed on the inner wall of several sliding grooves 23 on the same side. The top of the separation component 31 is also provided with a base plate 32 for placing the motor housing 4. The middle of the base plate 32 is connected with a bottom block that engages with the bottom of the motor housing 4 by screws. Telescopic columns 33 are respectively provided on both sides of the top of the base plate 32. The top of the two telescopic columns 33 is provided with a top plate 34. The bottom of the top plate 34 is connected with a top block that engages with the top of the motor housing 4 by screws. The top of the top plate 34 is also provided with a locking component 35.

[0029] The top plate 34 mentioned above has a hole on one side for the high-pressure air pump hose to pass through. After the top plate 34 seals the motor housing 4, the high-pressure hose communicates with the inner cavity of the motor housing 4 to transport gas for testing.

[0030] In the above process, the top plate 34 is pressed down by the internal structure of the transmission mechanism 7, so that the top block at the bottom of the top plate 34 is engaged with the top of the motor housing 4, thus forming a sealed state in the inner cavity of the motor housing 4. Then, the top plate 34 is continuously pressed down, which drives the sealed motor housing 4 and the separation component 31 set at the bottom to continuously descend in the same side slide groove 23. When it descends to a certain extent, the bottom plate 32 continues to descend and squeezes the internal structure of the separation component 31 into a compressed state. At this time, the upper top plate 34 is tightly attached to the top of the motor housing 4, ensuring the sealing of the motor housing 4 in the inner cavity of the water bucket 21. Then, gas is injected into the inner cavity of the motor housing 4 through a high-pressure air pump via a hose for testing. A locking assembly 35 is also provided on the top of the top plate 34. After the sealing test of the motor housing 4 is completed, the internal structure of the locking assembly 35 is pulled up by the internal structure of the transmission mechanism 7. Then, during the process of rising in the water inside the bucket 21, the bottom plate 32 is constantly pushed up by the internal structure of the separation assembly 31, so that the top of the bottom plate 32 is always in contact with the top of the top plate 34 before the motor housing 4 is out of the water, so that the water inside the bucket 21 will not enter the inner cavity of the motor housing 4. Then, the internal structure of the transmission mechanism 7 continues to drive the locking assembly 35 to rise. After the motor housing 4 enters the internal structure of the drying mechanism 6, the internal structure of the locking assembly 35 comes into contact with the internal structure of the drying mechanism 6. Then, by starting the rotation of the internal structure of the drying mechanism 6, the internal structure of the drying mechanism 6 is locked in the locking assembly 35, which synchronously drives the top plate 34 to rotate. Then, the telescopic column 33 and the bottom plate 32 connected to it rotate synchronously. During the rotation, the motor housing 4 is driven to rotate 360 ​​degrees in both directions to prevent the connected hose from getting tangled due to multiple rotations. At the same time, the internal structure of the drying mechanism 6 is started to dry the motor housing 4 during the rotation process.

[0031] Specifically, in order to ensure that the bottom of the motor housing 4 is sealed before and after the water pressure test, and to separate impurities generated after the test from the water, refer to Figure 7 In this scheme, the separation component 31 includes a slip ring 311 that slides on the inner wall of the slide groove 23. A cone-shaped filter plate 312 is provided at the bottom of the slip ring 311. Through holes 313 are distributed in an annular pattern at the bottom of the surface of the slip ring 311. A rotating cylinder 314 is rotatably provided in the middle of the filter plate 312. Balls 315 are distributed in an annular pattern on the outer surface of the rotating cylinder 314. A rubber bellows 318 is provided at the top of the rotating cylinder 314. A spring 316 for pushing is provided in the inner cavity of the rubber bellows 318 and the rotating cylinder 314. A spline bushing 317 is also provided inside the spring 316. A scraper that fits against the surface of the filter plate 312 is provided at the bottom of the rubber bellows 318. During the rotation of the rubber bellows 318, the scraper is driven to synchronously fit against the filter plate 312 and rotate to scrape off surface impurities.

[0032] In the above description, as the slip ring 311 and filter plate 312 descend within the inner cavity of the water tank 21, they compress the water inside the water tank 21, causing the water to flow upward through the filter holes on the surface of the filter plate 312. Then, the ball bladder 315 continuously pushes upward with a certain force within the water. A rubber bellows 318 is installed at the top of the rotating drum 314. A second spring 316 is installed in both the rubber bellows 318 and the inner cavity of the rotating drum 314. A splined bushing 317 is also installed inside the second spring 316. The top plate 34 continuously presses downward. During the process, the rotating drum 314 is pushed to contact and block the bottom of the water bucket 21. Then, the top plate 34 continues to descend, compressing the rubber bellows 318, spline bushing 317, and spring 316 to ensure that a certain amount of force is applied to the top and bottom of the motor housing 4. This ensures that the gas will not leak from the top or bottom of the motor housing 4 during the input of high-pressure gas into the inner cavity of the motor housing 4, which would lead to inaccurate detection. After the detection is completed, the top plate 34 rises, and at the same time, the compressed spring 316 releases its elasticity, constantly pushing the top plate 34. Contacting the bottom of the motor housing 4, several synchronously arranged balloons 315 also float upwards, applying a certain force to the bottom of the slip ring 311. This causes the top of the motor housing 4 to emerge from the water surface and continue to rise, causing the top plate 34 on the upper side to leave the top of the motor housing 4. Then, through two telescopic columns 33, the bottom plate 32 and the motor housing 4 are pulled into the drying mechanism 6. At this time, the slip ring 311 is also pulled upwards synchronously, causing the filter plate 312 to rise synchronously. During the rise of the filter plate 312, impurities contained in the water are synchronously lifted to the water surface. The upper part is then aligned with the through hole 313 and the through hole 22. The internal structure of the engaging assembly 35 rotates, causing the spline bushing 317, the rotating cylinder 314 and the rubber bellows 318 to rotate synchronously. At the bottom of the rubber bellows 318, a scraper is also provided that is in contact with the surface of the filter plate 312. During the rotation of the rubber bellows 318, the scraper is driven to rotate synchronously in contact with the filter plate 312. In its conical design, the scraped impurities fall into the semi-circular annular groove 24 through the through hole 313 and the through hole 22 for collection.

[0033] Specifically, in order to achieve the purpose of driving the top plate 34 and the motor housing 4 to rotate, refer to Figure 5 and Figure 6 In this solution, the engaging assembly 35 includes a circular block 351 disposed on the top of the top plate 34. The top of the circular block 351 is provided with several grooves arranged in a ring. Each groove is provided with a spring 352. The top of each spring 352 is provided with a protrusion 354. The top of the circular block 351 is also provided with a movable cavity 353.

[0034] In the above, the internal structure of the transmission mechanism 7 is set in the inner cavity of the movable cavity 353. The internal structure of the transmission mechanism 7 lifts the circular block 351, so that several protrusions 354 come into contact with the internal structure of the drying mechanism 6 and are in a compressed state. Then, after the internal structure of the drying mechanism 6 rotates by a certain angle, the spring 352 pushes the protrusions 354 to engage in the internal structure of the drying mechanism 6. Then, the circular block 351 is driven to rotate during the rotation of the internal structure of the drying mechanism 6.

[0035] Specifically, in order to achieve the goal of lifting and rotating the circular block 351, refer to Figure 8 In this scheme, the transmission mechanism 7 includes two sliding columns 73 that are slidably disposed on both sides of the top of the partition 5. The bottom of the two sliding columns 73 penetrates the interior of the drying mechanism 6 and is disposed in the inner cavity of the movable cavity 353. The bottom shape of the sliding column 73 corresponds to the inner cavity of the movable cavity 353. The top of the two sliding columns 73 is provided with a pressure plate 74. The top of the pressure plate 74 is provided with an electric telescopic cylinder 72. The rear side of the partition 5 is also provided with a motor 71 for driving.

[0036] In the above, by activating the electric telescopic cylinder 72 to pull or push the pressure plate 74 downward, the two sliding columns 73 can be raised and lowered simultaneously, thereby driving the round block 351 to rise and fall. A motor 71 is also provided on the rear side of the partition 5. By activating the motor 71, the internal structure of the drying mechanism 6 can be rotated, thereby driving the round block 351 to rotate during the rotation of the internal structure of the drying mechanism 6.

[0037] Specifically, in order to dry the motor housing 4 and scrape away impurities inside the semi-circular groove 24 for collection in the storage bin 26, refer to Figure 8 , Figure 9 and Figure 10 In this scheme, the drying mechanism 6 includes several support rods 61 set on one side of the top of two water buckets 21, and the top of the several support rods 61 on the same side is provided with a baffle 62. Hot air blowers 63 are set on both sides of the rear part of the inner cavity of the detection box 1, and rotating components 64 are set on the top of the two baffles 62.

[0038] In the above process, after the two motor housings 4 on the same side enter the baffle tube 62, hot air is blown into the baffle tube 62 by starting the hot air blower 63. A rotating component 64 is provided at the top of each of the two baffle tubes 62. The internal structure of the rotating component 64 is rotated by starting the motor 71, so that the rotating component 64 rotates synchronously and drives the motor housing 4 to rotate. Then, the hot air blower 63 dries the surface of the motor housing 4 during the rotation. The baffle tube 62 can block the water droplets that splash during the drying process of the motor housing 4, so that the water droplets stick to the inner wall of the baffle tube 62 and slide down into the inner cavity of the water tank 21.

[0039] Furthermore, in order to achieve the goal of driving the motor housing 4 to rotate, refer to Figure 9 and Figure 10 In this scheme, the rotating component 64 includes a pulley 641 rotatably disposed on one side of the bottom of the partition 5 and two rotating rings 644 respectively rotatably disposed on the top of the baffle tube 62 on the same side. The inner cavity of the two rotating rings 644 is provided with a number of connecting rods 643 arranged in a ring. The middle of the number of connecting rods 643 is provided with a rotating block 642. The bottom of the two rotating blocks 642 is provided with a concave hole corresponding to the protrusion 354. The outer surface of the two rotating rings 644 is symmetrically provided with two levers 645.

[0040] Furthermore, the bottoms of the two paddles 645 are attached to the inner walls of the two semi-circular grooves 24 on the same side, and the paddles 645 are used to scrape off the impurities collected inside the two semi-circular grooves 24 during rotation, which fall into the two discharge pipes 25.

[0041] In the above description, the belt wound around the surface of pulley 641 is wound around the upper part of two rotating blocks 642 on the other side. Each rotating block 642 has a corresponding recess at its bottom. When the round block 351 is lifted, causing the protrusion 354 to contact and compress the bottom of the rotating block 642, the starting motor 71 drives pulley 641 to rotate. During the rotation of pulley 641, the belt on its surface simultaneously drives the two rotating blocks 642 to rotate. As the two rotating blocks 642 rotate, the recesses at their bottoms rotate in conjunction with the belt. Several protrusions 354 are aligned so that they enter the recessed holes at the bottom of the rotating block 642, thereby driving the circular block 351 to rotate and causing the motor housing 4 to rotate, which in turn drives the connecting rod 643 and the rotating ring 644 to rotate. Two deflector plates 645 are symmetrically arranged on the outer surface of the two rotating rings 644. The bottom of the two deflector plates 645 is attached to the inner wall of the two semi-circular annular grooves 24 on the same side, so that during the rotation, the bottom of the two deflector plates 645 scrapes the impurities collected inside the two semi-circular annular grooves 24 and they fall into the two discharge pipes 25.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A motor sealing performance testing device, comprising a testing chamber (1) for sealing performance testing, characterized in that: The bottom of the inner cavity of the test box (1) is provided with a test assembly (2) for testing. The top of the test assembly (2) is provided with two placement mechanisms (3). The motor housing (4) to be tested is placed inside the two placement mechanisms (3). The top of the inner cavity of the test box (1) is provided with a partition (5). The top of the partition (5) is also provided with a transmission mechanism (7). The transmission mechanism (7) cooperates with the placement mechanism (3) to press down the motor housing (4) into the test assembly (2) for testing. The bottom of the partition (5) is also provided with a drying mechanism (6) for drying the motor housing (4). The drying mechanism (6) cooperates with the internal structure of the placement mechanism (3) to separate impurities after testing.

2. The motor sealing performance testing device according to claim 1, characterized in that: The test assembly (2) includes two water buckets (21) located on the left and right sides of the bottom of the test box (1). The inner walls of the two water buckets (21) are provided with a number of sliding grooves (23) distributed in a ring. The upper surface of the water buckets (21) is provided with a number of through holes (22) for discharging impurities. The upper surface of the outer surfaces of the two water buckets (21) is provided with a semi-circular groove (24) for holding impurities. The bottom side of the two semi-circular grooves (24) is also provided with a discharge pipe (25) communicating with them. The bottom of the two discharge pipes (25) is provided with a storage bucket (26) for collecting impurities.

3. The motor sealing performance testing device according to claim 2, characterized in that: The placement mechanism (3) includes two separation components (31) that are slidably disposed on the inner wall of several grooves (23) on the same side. The top of the separation component (31) is also provided with a base plate (32) for placing the motor housing (4). The middle part of the base plate (32) is connected with a bottom block that engages with the bottom of the motor housing (4) by screws. Telescopic columns (33) are respectively provided on both sides of the top of the base plate (32). The top of the two telescopic columns (33) is provided with a top plate (34). The bottom of the top plate (34) is connected with a top block that engages with the top of the motor housing (4) by screws. The top of the top plate (34) is also provided with a locking component (35).

4. The motor sealing performance testing device according to claim 3, characterized in that: The separation assembly (31) includes a slip ring (311) that slides on the inner wall of the slide groove (23). A cone-shaped filter plate (312) is provided at the bottom of the slip ring (311). Two through holes (313) are distributed in a ring at the bottom of the surface of the slip ring (311). A rotating cylinder (314) is rotatably provided in the middle of the filter plate (312). A balloon (315) is distributed in a ring on the outer surface of the rotating cylinder (314). A ball bearing (315) is provided at the top of the rotating cylinder (314). There is a rubber bellows (318), and the inner cavity of the rubber bellows (318) and the rotating drum (314) are jointly provided with a spring two (316) for pushing. The spring two (316) is also provided with a spline bushing (317). The bottom of the rubber bellows (318) is also provided with a scraper that is in contact with the surface of the filter plate (312). During the rotation of the rubber bellows (318), the scraper is driven to synchronously contact the filter plate (312) and rotate to scrape off surface impurities.

5. The motor sealing performance testing device according to claim 4, characterized in that: The engaging assembly (35) includes a circular block (351) disposed on the top of the top plate (34). The top of the circular block (351) is provided with a plurality of grooves distributed in a ring. A spring (352) is disposed inside each of the grooves. A protruding post (354) is disposed on the top of each spring (352). The top of the circular block (351) is also provided with a movable cavity (353).

6. The motor sealing performance testing device according to claim 5, characterized in that: The transmission mechanism (7) includes two sliding columns (73) slidably disposed on both sides of the top of the partition (5). The bottom of the two sliding columns (73) penetrates the interior of the drying mechanism (6) and is disposed in the inner cavity of the movable cavity (353). The bottom shape of the sliding column (73) corresponds to the inner cavity of the movable cavity (353). The top of the two sliding columns (73) is provided with a pressure plate (74). The top of the pressure plate (74) is provided with an electric telescopic cylinder (72). The rear side of the partition (5) is also provided with a motor (71) for driving.

7. The motor sealing performance testing device according to claim 6, characterized in that: The air-drying mechanism (6) includes several support rods (61) set on one side of the top of two water buckets (21), and a baffle (62) is set on the top of several support rods (61) on the same side. Hot air blowers (63) are set on both sides of the rear part of the inner cavity of the detection box (1), and a rotating component (64) is set on the top of the two baffles (62).

8. The motor sealing performance testing device according to claim 7, characterized in that: The rotating assembly (64) includes a pulley (641) rotatably disposed on one side of the bottom of the partition (5) and two rotating rings (644) rotatably disposed on the top of the baffle (62) on the same side. The inner cavity of the two rotating rings (644) is provided with a plurality of connecting rods (643) arranged in a ring. The middle of the plurality of connecting rods (643) is provided with a rotating block (642). The bottom of the two rotating blocks (642) is provided with a concave hole corresponding to the protrusion (354). The outer surface of the two rotating rings (644) is symmetrically provided with two levers (645).

9. The motor sealing performance testing device according to claim 8, characterized in that: The bottom of both of the aforementioned dials (645) are attached to the inner walls of the two semi-circular grooves (24) on the same side, and the dials (645) are used to scrape off the impurities collected inside the two semi-circular grooves (24) during the rotation process and fall into the two discharge pipes (25).

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