A motor seal detection device

Abstract

The utility model is suitable for motor quality detection field provides a kind of motor sealing detection device, including bottom platform, two spacers are fixedly connected in bottom platform upper end, spacer is fixedly installed with placing bin, support frame is fixedly connected with electric telescopic handle on, the drive end of electric telescopic handle is fixedly connected with connecting plate, the lower end of connecting plate is fixedly connected with two top covers, still cooperation setting has stabilizing assembly on connecting plate;Still including shunt valve, the gas source is connected to shunt valve, and the gas outlet of shunt valve is respectively fixedly connected with intake branch pipe, the other end of intake branch pipe is communicated with corresponding placing bin, pressure instrument and solenoid valve are all provided on intake branch pipe, still fixedly connected with communicating pipe between two described placing bins, cooperation setting has differential pressure sensing device on communicating pipe.The utility model has the advantages that whether the measured servo motor leaks or not is identified by detecting the pressure difference in the two placing bins, and the stability of the connection between the top cover and the placing bin is improved.

Description

Technical Field

[0001] This utility model relates to the field of motor quality testing, and in particular to a motor sealing testing device. Background Technology

[0002] As the core component of a power system, the sealing performance of an electric motor directly affects its operational safety.

[0003] Existing motor sealing testing devices first add water to the testing chamber, then immerse the waterproof motor to be tested in the water. The presence of air bubbles in the water indicates poor sealing. While visual inspection is intuitive, it is highly subjective and lacks precision.

[0004] Therefore, in view of the above situation, there is an urgent need to develop a motor sealing performance testing device to overcome the shortcomings in current practical applications. Utility Model Content

[0005] The purpose of this utility model embodiment is to provide a motor sealing performance testing device, which aims to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A motor sealing performance testing device includes a base and a support frame. The support frame is fixedly connected to the base, and two pads are fixedly connected to the upper end of the base. Placement chambers are fixedly installed on the pads. An electric telescopic rod is fixedly connected to the support frame, and a connecting plate is fixedly connected to the drive end of the electric telescopic rod. Two top covers are fixedly connected to the lower end of the connecting plate, and a stabilizing component is also provided on the connecting plate. The device also includes a diverter valve, which is connected to an external air source. The outlet end of the diverter valve is fixedly connected to an inlet pipe, and the other end of the inlet pipe is connected to the corresponding placement chamber. Each inlet pipe is equipped with a pressure gauge and a solenoid valve. A connecting pipe is fixedly connected between the two placement chambers, and a differential pressure sensor is provided on the connecting pipe.

[0007] A further technical solution is that a slot is provided at the upper end of the placement compartment, and a retaining ring is fixedly connected to the lower end of the top cover. The retaining ring engages with the inner wall of the slot, and the top cover and the retaining ring are an integral structure.

[0008] In a further technical solution, the stabilizing component includes a clamping plate, a mating plate, a first stabilizing groove, and a second stabilizing groove; mating plates are fixedly connected to both sides of the lower end of the connecting plate, and a first stabilizing groove is formed on each of the mating plates; a second stabilizing groove is formed on each of the pads, and a clamping plate is slidably connected to the inner wall of each of the second stabilizing grooves, and the clamping plate is slidably connected to the inner wall of the corresponding first stabilizing groove.

[0009] In a further technical solution, chamfers are provided on the lower sides of both ends of the card plate.

[0010] In a further technical solution, the vertical distance between the lower end of the top cover and the first stabilizing groove is equal to the vertical distance between the upper end of the placement compartment and the second stabilizing groove.

[0011] A further technical solution involves toothed grooves on each of the card plates, with a servo motor fixedly connected to the base platform. A rotating shaft is fixedly connected to the drive end of the servo motor, and a gear is fixedly sleeved through the top plate of the base platform at the drive end of the rotating shaft. The gear meshes with two toothed grooves respectively. In summary, this embodiment of the utility model has the following beneficial effects compared to the prior art: The connecting plate is driven to descend by an electric telescopic rod. Then, the connecting plate drives the top cover to abut against the upper end of the placement chamber. The retaining ring is simultaneously engaged in the slot. Compressed gas is diverted through a diverter valve by an air source and then enters the corresponding placement chambers through the air inlet pipes. The pressure in the two placement chambers is controlled to be equal. At this time, the pressure gauge and the differential pressure sensor both show that the pressure in the two placement chambers is equal. Then, the solenoid valve is closed. When the motor under test has poor sealing, the pressure inside its corresponding placement chamber drops. The differential pressure sensor can detect the pressure difference between the two placement chambers, thereby identifying whether the servo motor under test is leaking. As the air pressure inside the placement chamber increases, the load on the electric telescopic rod increases, which may cause pressure fluctuations in the electric telescopic rod, leading to vibration of the connecting plate and resulting in air leakage gaps between the top cover and the placement chamber. By using stabilizing components to firmly fix the connecting plate, vibration of the connecting plate can be effectively avoided, thereby improving the stability of the connection between the top cover and the placement chamber.

[0012] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This utility model Figure 1 A three-dimensional structural diagram of the middle section from another perspective; Figure 3 This is a three-dimensional structural diagram of the stabilizing component in this utility model; Figure 4 This utility model Figure 2 A three-dimensional structural diagram of the middle section.

[0014] In the diagram: 1. Base platform; 2. Support frame; 3. Electric telescopic rod; 4. Connecting plate; 5. Pad plate; 6. Placement compartment; 7. Top cover; 8. Slot; 9. Snap ring; 10. Intake manifold; 11. Diverter valve; 12. Connecting pipe; 13. Differential pressure sensor; 14. Stabilizing component; 141. Rotating shaft; 142. Servo motor; 143. Gear; 144. Gear groove; 145. Clamping plate; 146. Mating plate; 147. First stabilizing groove; 148. Second stabilizing groove. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0016] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0017] like Figures 1-4 As shown, this utility model embodiment provides a motor sealing performance testing device, including a base 1 and a support frame 2. The support frame 2 is fixedly connected to the base 1. Two pads 5 are fixedly connected to the upper end of the base 1. Placement chambers 6 are fixedly installed on the pads 5. The two placement chambers 6 are used to place the motor to be tested and the leak-proof motor. An electric telescopic rod 3 is fixedly connected to the support frame 2. A connecting plate 4 is fixedly connected to the drive end of the electric telescopic rod 3. Two top covers 7 are fixedly connected to the lower end of the connecting plate 4. The connecting plate 4 is also fitted with... The system includes a stabilizing component 14 and a diversion valve 11 connected to an external air source. The outlet of the diversion valve 11 is fixedly connected to an air inlet pipe 10, and the other end of the air inlet pipe 10 is connected to the corresponding placement chamber 6. Each air inlet pipe 10 is equipped with a pressure gauge (not marked in the figure) and a solenoid valve (not marked in the figure). A connecting pipe 12 is also fixedly connected between the two placement chambers 6. A differential pressure sensor 13 is installed on the connecting pipe 12 to detect the pressure difference between the two placement chambers 6.

[0018] Furthermore, the upper end of the placement compartment 6 is provided with a slot 8, and the lower end of the top cover 7 is fixedly connected with a retaining ring 9. The retaining ring 9 engages with the inner wall of the slot 8, and the top cover 7 and the retaining ring 9 are an integral structure, thereby effectively improving the sealing performance at the connection between the top cover 7 and the retaining ring 9.

[0019] In this embodiment of the utility model, the connecting plate 4 is driven to descend by the electric telescopic rod 3, and then the connecting plate 4 drives the top cover 7 to abut against the upper end of the placement chamber 6. The retaining ring 9 is simultaneously engaged in the retaining groove 8. The compressed gas is diverted by the air source through the diversion valve 11 and then enters the corresponding placement chamber 6 through the air inlet pipe 10 to control the pressure in the two placement chambers 6 to be equal. At this time, the pressure gauge and the differential pressure sensor 13 both show that the pressure in the two placement chambers 6 is equal. Then, the solenoid valve is controlled to close. When the sealing performance of the motor under test is poor, the pressure inside the corresponding placement chamber 6 drops. The differential pressure sensor 13 can detect the pressure difference in the two placement chambers 6, thereby identifying whether the servo motor 142 under test is leaking. As the air pressure in the placement chamber 6 increases, the load on the electric telescopic rod 3 increases, which may cause pressure fluctuations in the electric telescopic rod 3, thereby causing the connecting plate 4 to shake, resulting in an air leakage gap between the top cover 7 and the placement chamber 6. The connecting plate 4 is fixed firmly by the stabilizing component 14, which can effectively prevent the connecting plate 4 from shaking, thereby improving the stability of the connection between the top cover 7 and the placement chamber 6.

[0020] like Figures 1-4 As shown, the stabilizing component 14 includes a clamping plate 145, a mating plate 146, a first stabilizing groove 147, and a second stabilizing groove 148; both sides of the lower end of the connecting plate 4 are fixedly connected to the mating plate 146, and the mating plate 146 is provided with a first stabilizing groove 147; the pad plate 5 is provided with a second stabilizing groove 148, and the inner wall of the second stabilizing groove 148 is slidably connected to the clamping plate 145, and the clamping plate 145 is slidably connected to the inner wall of the corresponding first stabilizing groove 147.

[0021] Furthermore, chamfers are provided on the lower sides of both ends of the card plate 145, so as to facilitate the card plate 145 to extend into the first stabilizing groove 147.

[0022] Furthermore, the vertical distance between the lower end of the top cover 7 and the first stabilizing groove 147 is equal to the vertical distance between the upper end of the placement chamber 6 and the second stabilizing groove 148.

[0023] Furthermore, each of the card plates 145 is provided with a toothed groove 144, and a servo motor 142 is fixedly connected to the base 1. The drive end of the servo motor 142 is fixedly connected to a rotating shaft 141. The drive end of the rotating shaft 141 passes through the top plate of the base 1 and is fixedly sleeved with a gear 143. The gear 143 is respectively meshed with two toothed grooves 144.

[0024] In practical applications, the electric telescopic rod 3 drives the mating plate 146 to descend to the same horizontal plane as the first stabilizing groove 147 and the second stabilizing groove 148 via the connecting plate 4. Then, the servo motor 142 is started. The servo motor 142 drives the gear 143 to start via the rotating shaft 141. The gear 143 drives the locking plate 145 to slide along the second stabilizing groove 148 towards the first stabilizing groove 147 via the tooth groove 144. Then, the locking plate 145 is locked into the first stabilizing groove 147.

[0025] Furthermore, it also includes a controller (not shown in the figure), which is electrically connected to the electric telescopic rod 3, the diversion valve 11, the differential pressure sensor 13, the servo motor 142, the solenoid valve and the pressure gauge.

[0026] The working principle of this utility model is as follows: The motor under test and the leak-proof motor are placed in two different placement chambers 6. Then, the electric telescopic rod 3 is extended, driving the connecting plate 4 to descend. The connecting plate 4 then moves the top cover 7 to abut the upper end of the placement chamber 6, and the retaining ring 9 simultaneously engages with the retaining groove 8. Simultaneously, the connecting plate 4 drives the mating plate 146 to descend until the first stabilizing groove 147 and the second stabilizing groove 148 are on the same horizontal plane. Then, the servo motor 142 is started. The servo motor 142 drives the gear 143 through the rotating shaft 141, and the gear 143 drives the gear through the tooth groove 144. The clamping plate 145 slides along the second stabilizing groove 148 toward the first stabilizing groove 147, and then the clamping plate 145 is inserted into the first stabilizing groove 147. The compressed gas is diverted through the air source via the diversion valve 11 and then enters the corresponding placement chamber 6 through the air inlet pipe 10, controlling the pressure in the two placement chambers 6 to be equal. At this time, the pressure gauge and the differential pressure sensor 13 both show that the pressure in the two placement chambers 6 is equal. Then, the solenoid valve is closed. When the sealing performance of the tested motor is poor, the pressure inside its corresponding placement chamber 6 drops, and the pressure change can be detected by the differential pressure sensor 13.

[0027] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A motor sealing performance testing device, comprising a base (1) and a support frame (2), wherein the support frame (2) is fixedly connected to the base (1), characterized in that, Two pads (5) are fixedly connected to the upper end of the base (1). Placement chambers (6) are fixedly installed on the pads (5). An electric telescopic rod (3) is fixedly connected to the support frame (2). A connecting plate (4) is fixedly connected to the drive end of the electric telescopic rod (3). Two top covers (7) are fixedly connected to the lower end of the connecting plate (4). A stabilizing component (14) is also provided on the connecting plate (4). The base also includes a diversion valve (11). The diversion valve (11) is connected to an external air source. An air inlet pipe (10) is fixedly connected to the outlet end of the diversion valve (11). The other end of the air inlet pipe (10) is connected to the corresponding placement chamber (6). A pressure gauge and a solenoid valve are provided on the air inlet pipe (10). A connecting pipe (12) is fixedly connected between the two placement chambers (6). A differential pressure sensor (13) is provided on the connecting pipe (12).

2. The motor sealing performance testing device according to claim 1, characterized in that, The upper end of the placement compartment (6) is provided with a slot (8), and the lower end of the top cover (7) is fixedly connected with a retaining ring (9). The retaining ring (9) engages with the inner wall of the slot (8), and the top cover (7) and the retaining ring (9) are an integral structure.

3. The motor sealing performance testing device according to claim 1, characterized in that, The stabilizing component (14) includes a retaining plate (145), a mating plate (146), a first stabilizing groove (147), and a second stabilizing groove (148). Both sides of the lower end of the connecting plate (4) are fixedly connected to the mating plate (146), and the mating plate (146) is provided with a first stabilizing groove (147); the pad plate (5) is provided with a second stabilizing groove (148), and the inner wall of the second stabilizing groove (148) is slidably connected to the card plate (145), and the card plate (145) is slidably connected to the inner wall of the corresponding first stabilizing groove (147).

4. The motor sealing performance testing device according to claim 3, characterized in that, Both ends of the card plate (145) have chamfers on their lower sides.

5. The motor sealing performance testing device according to claim 4, characterized in that, The vertical distance between the lower end of the top cover (7) and the first stabilizing groove (147) is equal to the vertical distance between the upper end of the placement chamber (6) and the second stabilizing groove (148).

6. The motor sealing performance testing device according to claim 5, characterized in that, The card plate (145) is provided with toothed grooves (144), and a servo motor (142) is fixedly connected to the base (1). The drive end of the servo motor (142) is fixedly connected to a rotating shaft (141). The drive end of the rotating shaft (141) passes through the top plate of the base (1) and is fixedly sleeved with a gear (143). The gear (143) is meshed with two toothed grooves (144) respectively.

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