Motor detection system

Abstract

The invention relates to the field of detection equipment, in particular to a motor detection system which comprises an environment box, two sliding rails are fixedly connected in the environment box, a lifting plate is slidably connected between the two sliding rails, two rotating plates are rotatably connected to the lifting plate, and a buffer rod is rotatably connected in each rotating plate. Two baffles are connected to the environment box in a sliding mode, a connecting disc is rotationally connected between the two baffles, a positioning disc is fixedly connected to the connecting disc, and the positioning disc is connected in the environment box in a sliding mode. Three sliding rods are connected into the positioning disc in a sliding mode, each sliding rod is fixedly connected with a locking plate, a flange plate is connected among the three locking plates in an inserted mode, and a spring is fixedly connected between each sliding rod and the positioning disc. A locking ring is rotationally connected into the positioning disc, the locking ring is in meshing transmission connection with the three sliding rods at the same time, and an electromagnetic device and a first rotating motor are arranged between the positioning disc and the locking ring. The motor can be rapidly hoisted into an environment box through the lifting plate arranged in the motor hoisting device.

Description

Technical Field

[0001] This invention relates to the field of testing equipment, and in particular to a motor testing system. Background Technology

[0002] Dynamometer testing of permanent magnet synchronous motors for new energy vehicles is also a crucial step. A motor dynamometer testing system can measure numerous motor parameters, such as speed, torque, output power, voltage, current, input power, main winding current, auxiliary winding current, auxiliary winding voltage, capacitor voltage, power factor, frequency, efficiency, and ambient temperature. However, when using an environmental chamber for environmental simulation testing of the motor, the chamber's limited space makes it difficult to lift the motor into the chamber using an external crane, thus wasting considerable time. Summary of the Invention

[0003] The purpose of this invention is to provide a motor testing system with an internal lifting plate that can quickly hoist the motor into an environmental chamber.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] A motor testing system includes an environmental chamber with two slide rails fixed inside. A lifting plate is slidably connected between the two slide rails, and two rotating plates are rotatably connected to the lifting plate. A buffer rod is rotatably connected inside each rotating plate.

[0006] The environmental chamber has two slidably connected baffles, and a connecting plate is rotatably connected between the two baffles. A positioning plate is fixed to the connecting plate, and the positioning plate is slidably connected inside the environmental chamber.

[0007] The positioning disk has three sliding rods slidably connected inside, each of which is fixed with a locking piece. A flange is inserted between the three locking pieces, and a spring is fixed between each sliding rod and the positioning disk.

[0008] A locking ring is rotatably connected inside the positioning disk. The locking ring is simultaneously engaged with three sliding rods for transmission. An electromagnetic device and a first rotary motor are provided between the positioning disk and the locking ring.

[0009] It also includes four rotating seats fixed to the bottom of the environmental chamber. Each rotating seat has a wheel frame rotatably connected inside, each wheel frame has a drive shaft slidably connected inside, and each drive shaft has a wheel rotatably connected to it. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of the motor detection system;

[0011] Figure 2 This is a schematic diagram of the rotating base;

[0012] Figure 3This is a schematic diagram of the wheel frame structure;

[0013] Figure 4 This is a schematic diagram of the drive shaft structure;

[0014] Figure 5 This is a schematic diagram of the positioning disc;

[0015] Figure 6 This is a schematic diagram of the locking ring structure;

[0016] Figure 7 This is a structural diagram of the fixed plate;

[0017] Figure 8 This is a schematic diagram of the positioning pin;

[0018] Figure 9 This is a schematic diagram of the rotating plate structure;

[0019] Figure 10 This is a structural schematic diagram of the support base.

[0020] In the picture:

[0021] 101 Environmental chamber; 102 Rotary seat; 103 Top rod; 104 Wheel frame; 105 Wheel; 106 Drive shaft; 107 Square key;

[0022] 201 baffle; 202 connecting plate; 203 positioning plate; 204 slide rod; 205 locking plate; 206 flange; 207 locking ring;

[0023] First screw 301; fixing plate 302; fixing rod 303; clamping rod 304; second screw 305; positioning pin 306;

[0024] Lifting plate 401; slide rail 402; rotating plate 403; buffer rod 404; support base 405; waterway 406. Detailed Implementation

[0025] like Figure 1 and Figure 9 As shown:

[0026] A motor testing system includes an environmental chamber 101, two slide rails 402 fixedly connected inside the environmental chamber 101, a lifting plate 401 slidably connected between the two slide rails 402, two rotating plates 403 rotatably connected to the lifting plate 401, and two buffer rods 404 rotatably connected to the two rotating plates 403 respectively.

[0027] When testing the motor, it needs to be installed in the environmental chamber 101 for testing. To ensure a stable testing environment, the environmental chamber 101 is often well-sealed, making it time-consuming and labor-intensive to hoist the motor using external equipment. This causes the lifting plate 401 to move, sliding on two slide rails 402, thus extending the lifting plate 401 out of the environmental chamber 101. Then, the two rotating plates 403 are moved, causing them to rotate below the lifting plate 401. The two rotating plates 403 are unfolded, and each rotating plate 403 has a coiled iron chain inside. Each iron chain has a hook installed at the end. The two hooks are hooked onto the two mounting corners of the motor, so that the iron chain comes into contact with the corresponding buffer rod 404. When the iron chain moves, the iron chain drives the buffer rod 404 to rotate inside the rotating plate 403, thereby reducing the friction between the iron chain and the rotating plate 403. Then the iron chain is retracted, the motor is lifted, and the lifting plate 401 is pushed into the environmental box 101, thereby placing the motor in the environmental box 101.

[0028] like Figure 1-3 As shown:

[0029] Both baffles 201 are slidably connected to the environmental chamber 101, the connecting plate 202 is rotatably connected between the two baffles 201, the positioning plate 203 is fixed to the connecting plate 202, and the positioning plate 203 is slidably connected inside the environmental chamber 101.

[0030] The connecting plate 202 is fixed with multiple bolts to the auxiliary motor. The parameters of the auxiliary motor are selected according to the parameters of the motor under test, thus enabling motor testing. Since motor sizes vary, the motor is supported and fixed after installation. The position of the connecting plate 202 within the environmental chamber 101 is adjusted, and two baffles 201 are moved within the environmental chamber 101. After moving to the appropriate position, the two baffles 201 are fixed with screws. This fixes the position of the connecting plate 202 and allows it to rotate between the two baffles 201. The connecting plate 202 then drives the positioning plate 203 to rotate within the environmental chamber 101. The motor is connected to the positioning plate 203 via the flange 206, thus connecting the auxiliary motor to the motor under test.

[0031] like Figure 1 , Figure 5 and Figure 6 As shown:

[0032] All three slide rods 204 are slidably connected inside the positioning plate 203. Three locking pieces 205 are fixedly connected to the three slide rods 204 respectively. The flange 206 is inserted into the three locking pieces 205. A spring is fixedly connected between each slide rod 204 and the positioning plate 203.

[0033] Simultaneously, the three slide rods 204 are pushed, causing them to slide within the positioning plate 203. Each of the three slide rods 204 has a locking piece 205 fixedly attached to its front end, which causes the slide rod 204 to drive the corresponding locking piece 205 to move towards the center of the positioning plate 203, thereby inserting the locking piece 205 into the flange 206. When the positioning plate 203 rotates, the flange 206 rotates together through the slide rods 204 and the locking piece 205, thereby driving the tested motor to rotate. The locking piece 205 connection allows for quick center positioning of the flange 206, thus avoiding a lot of time wasted in the centering process.

[0034] When the slide bar 204 slides, the spring is compressed. When the slide bar 204 loses its drive, the spring quickly pushes the slide bar 204 to move, causing the slide bar 204 to drive the locking piece 205 to quickly disengage from the positioning plate 203.

[0035] like Figure 5 and Figure 6 As shown:

[0036] The locking ring 207 is rotatably connected inside the positioning disk 203. All three slide rods 204 are engaged with the locking ring 207 for transmission. An electromagnetic device and a first rotary motor are provided between the positioning disk 203 and the locking ring 207.

[0037] The electromagnetic device is activated, attracting the locking ring 207 and engaging it with the three slide rods 204. The first rotary motor is then activated, causing the locking ring 207 to rotate within the positioning disk 203. This drives the three slide rods 204 to move simultaneously towards the center of the positioning disk 203. Subsequently, the slide rods 204 move the locking plate 205 into the flange 206, which in turn drives the motor mounted on the flange 206 to rotate, thus performing electrical... The machine is tested; when the motor under test runs out of control, the connection between the auxiliary motor and the motor under test must be quickly cut off to protect the auxiliary motor from damage. Then, when it runs out of control, the electromagnetic device is driven to switch stages, thereby pushing the locking ring 207 away from the surface of the three slide rods 204, thereby breaking the meshing connection. At the same time, the three springs push the three slide rods 204 back, thereby causing the locking plate 205 to disengage from the flange 206, thereby quickly releasing the flange 206 and completing the separation between the auxiliary motor and the motor under test.

[0038] like Figure 1-4 As shown:

[0039] All four rotating seats 102 are fixed to the bottom of the environmental chamber 101. The four wheel frames 104 are rotatably connected to the four rotating seats 102 respectively. The four drive shafts 106 are slidably connected to the four wheel frames 104 respectively. The four wheels 105 are rotatably connected to the four drive shafts 106 respectively.

[0040] Move the four wheel frames 104 so that they rotate in their respective swivels 102, so that all four wheel frames 104 are perpendicular to the environmental box 101, and the four wheels 105 are in contact with the ground. At this time, push the environmental box 101, and the wheels 105 will rotate, thereby increasing the flexibility of the environmental box 101 and facilitating the transportation and handling of the environmental box 101.

[0041] like Figure 1-4 As shown:

[0042] Four push rods 103 are threaded to the bottom of the environmental chamber 101. Each push rod 103 has a square slot. Four square keys 107 are fixed to the four drive shafts 106 respectively. Each square key 107 is inserted into the corresponding square slot.

[0043] When the environmental chamber 101 is to be used, it needs to be provided with stable support. This is achieved by moving the four wheel frames 104 so that they are level with the bottom surface of the environmental chamber 101, so that the sides of the wheels 105 are in contact with the ground. The wheels 105 support the environmental chamber 101 at the four corners to ensure its stability. Each push rod 103 is then inserted into the corresponding wheel frame 104, so that the push rod 103 is in contact with the drive shaft 106. The square key 107 fixed on the drive shaft 106 is inserted into the square groove of the push rod 103. Then, by turning the push rod 103, it pushes the corresponding drive shaft 106 to slide within the wheel frame 104, thereby adjusting the distance between the wheels 105 and the environmental chamber 101, and thus leveling the environmental chamber 101 in uneven environments.

[0044] like Figure 1 and Figure 7 As shown:

[0045] The first screw 301 is rotatably connected inside the environmental chamber 101. The fixing plate 302 is threadedly connected to the first screw 301. The fixing plate 302 is slidably connected inside the environmental chamber 101. The fixing plate 302 is equipped with a clamping device.

[0046] Rotate the first screw 301 so that one end of the first screw 301 rotates on the inner wall of the environmental chamber 101. The first screw 301 is threaded with a fixing plate 302, so the first screw 301 pushes the fixing plate 302 to slide inside the environmental chamber 101. This causes the fixing plate 302 to bring the clamping device closer to the motor under test, thereby using the clamping device to fix the motor, keeping the motor axis horizontal and keeping the motor stable during testing.

[0047] like Figure 7 and Figure 8 As shown:

[0048] The clamping device includes a fixed rod 303, a positioning pin 306 fixedly connected to the fixed rod 303, two clamping rods 304 slidably connected to the fixed rod 303, a second screw 305 rotatably connected to the fixed rod 303, and the two ends of the second screw 305 are respectively threaded to the corresponding clamping rods 304. A second rotary motor is provided between the second screw 305 and the fixed rod 303.

[0049] The second rotary motor is driven to operate, thereby causing the second screw 305 to rotate. The two ends of the second screw 305 are respectively machined with two threads in opposite directions. When the second screw 305 rotates, the two clamping rods 304 threaded to the two ends of the second screw 305 move closer or further apart. When the positioning pin 306 is inserted into the positioning hole on the central shaft of the motor to be tested, the second screw 305 drives the two clamping rods 304 to move closer together, thereby clamping and fixing the motor, increasing the stability of the motor, and preventing the motor from shaking during testing, which could lead to a safety accident.

[0050] like Figure 8 As shown:

[0051] Multiple temperature sensors are installed on both clamps 304.

[0052] When clamping the motor, the two clamping rods 304 are inserted between two of the motor's heat dissipation fins, and the temperature sensors mounted on the clamping rods 304 are in contact with the motor's housing. During motor operation monitoring, the temperature sensors continuously monitor the temperature of the motor housing and compare the collected temperature data with data from the temperature sensors inside the motor stator to further understand the motor's heat dissipation capacity. Multiple sensors are evenly distributed on each clamping rod 304, enabling multi-point monitoring of the motor housing and detection of abnormally high temperatures, thus facilitating troubleshooting by engineers.

[0053] like Figure 1 and Figure 10 As shown:

[0054] The support base 405 is slidably connected inside the environmental chamber 101. An electric push rod is provided between the support base 405 and the environmental chamber 101. Two water channels 406 are provided on the support base 405.

[0055] After the motor is hoisted into the environmental chamber 101, the electric push rod is driven to work, which in turn drives the support base 405 to move, so that the arc surface of the support base 405 contacts the motor, thereby supporting the motor. By controlling the movement of the support base 405, the positioning hole on the central shaft of the motor is aligned with the positioning pin 306, which facilitates the clamping device to clamp and fix the motor. At the same time, the weight of the motor is distributed to the flange 206, the support base 405 and the clamping device, thereby preventing stress concentration and damage to the device.

[0056] Two hoses are used to connect the motor's water inlet and outlet to the two water channels 406 of the support base 405, respectively, thereby providing cooling water circulation for the motor. Connecting the hoses to the water channels 406 of the support base 405 shortens the length of the hoses, thereby reducing the impact of the temperature inside the environmental chamber 101 on the cooling water, and thus ensuring the accuracy of the data obtained when testing the motor.

Claims

1. A motor detection system, characterized by: The environment box (101) includes two slide rails (402) fixed inside the environment box (101), and a lifting plate (401) is slidably connected between the two slide rails (402). Two rotating plates (403) are rotatably connected on the lifting plate (401), and a buffer rod (404) is rotatably connected inside each rotating plate (403).

2. The motor testing system according to claim 1, characterized in that: The environmental chamber (101) has two baffles (201) slidably connected on it, and a connecting plate (202) is rotatably connected between the two baffles (201). A positioning plate (203) is fixed on the connecting plate (202) and the positioning plate (203) is slidably connected inside the environmental chamber (101).

3. The motor testing system according to claim 2, characterized in that: The positioning disk (203) has three sliding rods (204) slidably connected inside. Each sliding rod (204) has a locking piece (205) fixedly connected to it. A flange (206) is inserted between the three locking pieces (205). A spring is fixedly connected between each sliding rod (204) and the positioning disk (203).

4. The motor testing system according to claim 3, characterized in that: A locking ring (207) is rotatably connected inside the positioning disk (203). The locking ring (207) is simultaneously engaged with three slide rods (204) for transmission. An electromagnetic device and a first rotary motor are provided between the positioning disk (203) and the locking ring (207).

5. The motor testing system according to claim 4, characterized in that: It also includes four rotating seats (102) fixed to the bottom of the environmental box (101), each rotating seat (102) is rotatably connected to a wheel frame (104), each wheel frame (104) is slidably connected to a drive shaft (106), and each drive shaft (106) is rotatably connected to a wheel (105).

6. The motor testing system according to claim 5, characterized in that: The bottom of the environmental chamber (101) is threaded with four push rods (103), each push rod (103) has a square groove, and each drive shaft (106) has a square key (107) fixedly connected to it, each square key (107) being inserted into the corresponding square groove.

7. The motor testing system according to claim 6, characterized in that: A first screw (301) is rotatably connected inside the environmental chamber (101). A fixing plate (302) is threadedly connected to the first screw (301). The fixing plate (302) is slidably connected inside the environmental chamber (101). A clamping device is provided on the fixing plate (302).

8. The motor testing system according to claim 7, characterized in that: The clamping device includes a fixed rod (303), a positioning pin (306) fixedly connected to the fixed rod (303), two clamping rods (304) slidably connected to the fixed rod (303), a second screw (305) rotatably connected to the fixed rod (303), the two ends of the second screw (305) being threadedly connected to the corresponding clamping rods (304), and a second rotary motor being provided between the second screw (305) and the fixed rod (303).

9. The motor testing system according to claim 8, characterized in that: Each of the clamps (304) is equipped with multiple temperature sensors.

10. The motor detection system according to claim 7, characterized in that: A support base (405) is slidably connected inside the environmental chamber (101). An electric push rod is provided between the support base (405) and the environmental chamber (101). Two water channels (406) are provided on the support base (405).

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