Permanent magnet motor torque monitoring device

Abstract

The utility model provides a permanent magnet motor torque monitoring device, which belongs to the technical field of torque testing, and aims to solve the problem that the permanent magnet motors in the prior art are often different in size, so that the permanent magnet motors are more troublesome to fix on a torque tester. The torque sensor is fixedly connected to the upper surface of the mounting seat; the bearing plate is arranged above the mounting seat; the two transmission boxes are dispersedly and fixedly connected to the lower surface of the bearing plate; the lifting bearing assembly is arranged below the bearing plate; and the two clamping assemblies are arranged below the bearing plate in a scattered mode. According to the utility model, the bottoms of the permanent magnet motors with different sizes can be supported through the up-down movement of the supporting plate, the permanent magnet motors can be tightly clamped and fixed by respectively moving the two clamping plates towards the inner side, the operation is simple and convenient, the fixing speed of the permanent magnet motors with different sizes is accelerated, and the testing and monitoring efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of torque testing, and more specifically, particularly relates to a permanent magnet motor torque monitoring device. Background Art

[0002] Motor torque tester plays an important role in the performance test of permanent magnet motors. By real-time monitoring of torque data, it can provide strong support for the performance evaluation, fault detection, optimization control and load matching of permanent magnet motors. Existing torque testers for permanent magnet motors are generally composed of a mounting base, a torque sensor, a load device with adjustable resistance, and a data display device.

[0003] Existing application number: CN201921366812.2, the utility model relates to the field of motor testing, and discloses a motor tester, which includes a base (1) and a test assembly installed on the base (1) through a bracket; the test assembly includes a torque acquisition device, a speed acquisition device and an electromagnetic clutch (4) coaxially connected in sequence, wherein one end of the torque acquisition device is used to be connected to the motor to be tested; the torque acquisition device is used to collect the output torque of the motor to be tested, the speed acquisition device is used to collect the output speed of the motor to be tested, and the electromagnetic clutch (4) is used to adjust the size of the output torque of the motor to be tested. The motor tester of the utility model can be used to judge the performance of the motor, so as to select a suitable motor according to the needs and apply it to the relevant machine.

[0004] Based on the above, the size of each permanent magnet motor is often different. Therefore, in order to ensure that the motor can be stably and accurately installed on the torque tester and meet the test requirements, it may be necessary to replace different bases. During the process, multiple bolts may need to be disassembled and assembled, which increases the complexity of the operation and affects the test efficiency. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a permanent magnet motor torque monitoring device to solve the problem that the sizes of each existing permanent magnet motor are often different. Therefore, in order to ensure that the motor can be stably and accurately installed on the torque tester and meet the testing requirements, it may be necessary to replace different bases. During the process, multiple bolts may need to be disassembled and assembled, which increases the complexity of the operation and affects the test efficiency.

[0006] The purpose and effect of the permanent magnet motor torque monitoring device of the utility model are achieved by the following specific technical means:

[0007] A permanent magnet motor torque monitoring device comprises a mounting seat;

[0008] A torque sensor, wherein the torque sensor is fixedly connected to the mounting seat;

[0009] A load device, wherein the load device is fixedly connected to the mounting seat;

[0010] A permanent magnet motor, which is fixedly connected to a mounting base;

[0011] A supporting plate, the supporting plate being arranged above the mounting seat;

[0012] A transmission box, wherein two transmission boxes are provided, and the two transmission boxes are separately and fixedly connected under the supporting plate;

[0013] A lifting and supporting assembly, wherein the lifting and supporting assembly is arranged below the supporting plate;

[0014] The clamping components are arranged in two groups, and the two groups of clamping components are dispersedly arranged under the supporting plate.

[0015] Furthermore, the lifting and supporting assembly includes:

[0016] A U-shaped member, the U-shaped member is fixedly connected under the mounting seat;

[0017] A transmission screw, the transmission screw is rotatably connected inside the U-shaped member, and the transmission screw is threadedly connected to the supporting plate;

[0018] The knob is coaxially fixedly connected to the bottom of the transmission screw.

[0019] Furthermore, the lifting and supporting assembly also includes:

[0020] A guide column, wherein the guide column is slidably connected to the inside of the mounting seat and the guide column is fixedly connected to the bottom of the supporting plate;

[0021] An anti-slip sheet is fixedly connected below the guide column.

[0022] Furthermore, the clamping assembly includes:

[0023] A slider, wherein the slider is slidably connected inside the supporting plate;

[0024] The clamping plate is fixedly connected to the slider, and a plurality of through holes are provided inside the clamping plate.

[0025] Furthermore, the clamping assembly also includes:

[0026] A transmission rack, the transmission rack is fixedly connected to the outside of the slider and slidably connected to the inside of the transmission box;

[0027] a first transmission shaft, the first transmission shaft being rotatably connected inside the transmission box;

[0028] A transmission gear is coaxially fixedly connected to the top of the first transmission shaft, and the transmission gear is meshed with a transmission rack.

[0029] Furthermore, the clamping assembly also includes:

[0030] A transmission ratchet, the transmission ratchet is coaxially fixedly connected to the bottom of the first transmission shaft;

[0031] A transmission pawl is rotatably connected inside the transmission box, and the transmission pawl is meshed with the transmission ratchet wheel.

[0032] Furthermore, the clamping assembly also includes:

[0033] A limit spring, the left and right ends of which are respectively fixedly connected to the inner side of the transmission pawl and the inside of the transmission box;

[0034] A fixing plate, the fixing plate being fixedly connected under the supporting plate;

[0035] A return spring, wherein the front and rear ends of the return spring are fixedly connected to the fixing plate and the sliding block.

[0036] Compared with the prior art, the utility model has the following beneficial effects:

[0037] First, turn the knob. Under the guidance of the guide column, the transmission screw will rotate to drive the support plate to move upward through the threaded transmission mechanism formed together with the support plate. The support plate can support the bottom of permanent magnet motors of different sizes by moving up and down.

[0038] Secondly, move the two clamping plates inwards respectively. Under the action of the ratchet pawl transmission mechanism, the clamping plates can only move inwards, so that the two clamping plates can tightly clamp and fix the permanent magnet motor. By pulling the end of the transmission pawl, the two clamping plates can return to their original positions under the action of the reset spring, thereby releasing the restriction on the permanent magnet motor, which is easy to operate.

[0039] The utility model can support the bottom of permanent magnet motors of different sizes by moving the supporting plate up and down, and can tightly clamp and fix the permanent magnet motor by moving two clamping plates inward respectively. The operation is simple and convenient, the fixing speed of permanent magnet motors of different sizes is accelerated, and the test monitoring efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0041] Figure 2 It is a structural schematic diagram of a supporting plate of the utility model.

[0042] Figure 3 It is a schematic diagram of the clamping plate structure of the utility model.

[0043] Figure 4 It is a structural schematic diagram of a slider of the utility model.

[0044] Figure 5 It is a schematic diagram of the transmission gear structure of the utility model.

[0045] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0046] 1. Mounting seat; 2. Torque sensor; 3. Load device; 4. Permanent magnet motor; 5. Transmission box; 6. U-shaped piece; 7. Knob; 701. Transmission screw; 8. Guide column; 801. Anti-slip sheet; 9. Support plate; 10. Slider; 1001. Clamping plate; 1002. Transmission rack; 11. First transmission shaft; 1101. Transmission gear; 1102. Transmission ratchet; 12. Transmission pawl; 1201. Limit spring; 13. Fixing plate; 14. Reset spring. DETAILED DESCRIPTION

[0047] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0048] Embodiment 1:

[0049] As attached Figure 1 To Attachment Figure 5 As shown:

[0050] The utility model provides a permanent magnet motor torque monitoring device, comprising a mounting seat 1;

[0051] The torque sensor 2 is fixedly connected to the mounting base 1;

[0052] The load device 3 is fixedly connected to the mounting base 1;

[0053] A permanent magnet motor 4, which is fixedly connected to the mounting base 1;

[0054] A supporting plate 9, the supporting plate 9 is arranged above the mounting seat 1;

[0055] Transmission box 5, two transmission boxes 5 are provided, and the two transmission boxes 5 are dispersedly fixedly connected under the supporting plate 9;

[0056] The lifting and supporting assembly is arranged below the supporting plate 9.

[0057] The lifting and supporting components include:

[0058] A U-shaped member 6, the U-shaped member 6 is fixedly connected to the bottom of the mounting seat 1;

[0059] A transmission screw 701, which is rotatably connected to the inside of the U-shaped member 6, and the transmission screw 701 is threadedly connected to the supporting plate 9;

[0060] The knob 7 is coaxially fixedly connected to the bottom of the transmission screw 701 , and its function is that rotating the knob 7 can drive the transmission screw 701 to rotate in the U-shaped part 6 .

[0061] Among them, the lifting support assembly also includes:

[0062] A guide column 8, the guide column 8 is slidably connected inside the mounting seat 1, and the guide column 8 is fixedly connected under the supporting plate 9;

[0063] The anti-slip sheet 801 is fixedly connected to the bottom of the guide column 8. Its function is that under the guidance of the guide column 8, when the transmission screw 701 rotates, it will drive the support plate 9 to move up and down through the threaded transmission mechanism formed together with the support plate 9. The anti-slip sheet 801 can prevent the support plate 9 from moving up too far, causing the guide column 8 to separate from the inside of the mounting seat 1.

[0064] The specific usage and function of this embodiment are as follows:

[0065] First, connect the rotating shaft of the permanent magnet motor 4 to one end of the torque sensor 2, and then turn the knob 7 to drive the transmission screw 701 to rotate in the U-shaped part 6. Under the guidance of the guide column 8, the transmission screw 701 will drive the support plate 9 to move upward through the threaded transmission mechanism formed together with the support plate 9. The anti-slip sheet 801 can prevent the support plate 9 from moving up too far and causing the guide column 8 to detach from the mounting base 1. The support plate 9 moves upward to the upper surface and fits with the permanent magnet motor 4, then stop turning the knob 7. The support plate 9 can support the bottom of permanent magnet motors 4 of different sizes by moving up and down.

[0066] Embodiment 2:

[0067] Based on the first embodiment, as shown in the attached Figure 1 To Attachment Figure 5 As shown, it also includes a clamping assembly, and two groups of clamping assemblies are arranged, and the two groups of clamping assemblies are dispersedly arranged under the supporting plate 9.

[0068] The clamping assembly includes:

[0069] A slider 10, the slider 10 is slidably connected inside the supporting plate 9;

[0070] The clamping plate 1001 is fixedly connected to the slider 10, and a plurality of through holes are provided inside the clamping plate 1001. The function of the clamping plate 1001 is to move the two clamping plates 1001 inwards respectively so that the two clamping plates 1001 can fit the front and rear sides of the permanent magnet motor 4. The plurality of through holes provided inside the clamping plate 1001 can prevent the clamping plate 1001 from affecting the heat dissipation of the permanent magnet motor 4.

[0071] The clamping assembly also includes:

[0072] A transmission rack 1002, which is fixedly connected to the outside of the slider 10 and slidably connected to the inside of the transmission box 5;

[0073] A first transmission shaft 11, the first transmission shaft 11 is rotatably connected to the inside of the transmission box 5;

[0074] The transmission gear 1101 is coaxially fixedly connected to the top of the first transmission shaft 11, and the transmission gear 1101 is meshed with the transmission rack 1002. The effect brought about is that the movement of the slider 10 will drive the first transmission shaft 11 to rotate through the gear rack transmission mechanism formed by the meshing of the transmission rack 1002 and the transmission gear 1101.

[0075] The clamping assembly also includes:

[0076] A transmission ratchet 1102, the transmission ratchet 1102 is coaxially fixedly connected to the bottom of the first transmission shaft 11;

[0077] The transmission pawl 12 is rotatably connected to the inside of the transmission box 5, and the transmission pawl 12 is engaged with the transmission ratchet 1102. The effect is that under the action of the ratchet and pawl transmission mechanism formed by the engagement of the transmission pawl 12 and the transmission ratchet 1102, the first transmission shaft 11 can only rotate in one direction, that is, the transmission rack 1002 and the clamping plate 1001 can only move inward, so that the two clamping plates 1001 can tightly clamp the permanent magnet motor 4.

[0078] The clamping assembly also includes:

[0079] A limit spring 1201, the left and right ends of which are fixedly connected to the inner side of the transmission pawl 12 and the inside of the transmission box 5 respectively;

[0080] A fixing plate 13, the fixing plate 13 is fixedly connected to the bottom of the supporting plate 9;

[0081] The reset spring 14, the front and rear ends of the reset spring 14 are fixedly connected to the fixed plate 13 and the slider 10, so that the end of the transmission pawl 12 can be pulled to the right to disengage the transmission pawl 12 and the transmission ratchet 1102. Under the action of the reset spring 14, the clamping plate 1001 and the slider 10 move to the outermost side, loosening the end of the transmission pawl 12, and under the action of the limit spring 1201, the transmission pawl 12 and the transmission ratchet 1102 are engaged again.

[0082] The specific usage and function of this embodiment are as follows:

[0083] After the supporting plate 9 holds the bottom of the permanent magnet motor 4, the two clamping plates 1001 are moved inwards respectively, so that the two clamping plates 1001 fit the front and rear sides of the permanent magnet motor 4. The movement of the slider 10 drives the first transmission shaft 11 to rotate through the gear rack transmission mechanism composed of the meshing of the transmission rack 1002 and the transmission gear 1101. Under the action of the ratchet and pawl transmission mechanism composed of the meshing of the transmission pawl 12 and the transmission ratchet 1102, the first transmission shaft 11 can only rotate in one direction, that is, the transmission rack 1002 and the clamping plate 1001 can only move inwards, so that the two clamping plates 1001 can tightly fit the permanent magnet motor 4. The machine 4 is clamped, and the multiple through holes opened inside the clamping plate 1001 can prevent the clamping plate 1001 from affecting the heat dissipation of the permanent magnet motor 4; after the torque test of the permanent magnet motor 4 is completed, the end of the transmission pawl 12 is pulled to the right, which can disengage the transmission pawl 12 and the transmission ratchet 1102. Thus, under the action of the reset spring 14, the clamping plate 1001 and the slider 10 move to the outermost side, contacting the restriction on the permanent magnet motor 4, and releasing the end of the transmission pawl 12. Under the action of the limit spring 1201, the transmission pawl 12 and the transmission ratchet 1102 are meshed again, which is convenient for monitoring the operation of the next permanent magnet motor 4.

Claims

1. A permanent magnet motor torque monitoring device, comprising a mounting seat, a torque sensor, a load device, a permanent magnet motor, a supporting plate, a transmission box, a lifting supporting assembly and a clamping assembly; characterized in that: The torque sensor is fixedly connected to the mounting seat; the load device is fixedly connected to the mounting seat; the permanent magnet motor is fixedly connected to the mounting seat; the supporting plate is arranged above the mounting seat; the transmission box is provided in two pieces, and the two transmission boxes are dispersedly fixedly connected under the supporting plate; the lifting supporting assembly is arranged under the supporting plate; the clamping assembly is provided in two groups, and the two groups of clamping assemblies are dispersedly arranged under the supporting plate.

2. A permanent magnet motor torque monitoring device as claimed in claim 1, characterized in that: The lifting support assembly includes: a U-shaped part, a transmission screw and a knob; the U-shaped part is fixedly connected under the mounting seat; the transmission screw is rotatably connected inside the U-shaped part, and the transmission screw is threadedly connected to the support plate; the knob is coaxially fixedly connected to the bottom of the transmission screw.

3. A permanent magnet motor torque monitoring device as claimed in claim 2, characterized in that: The lifting support assembly also includes: a guide column and an anti-dropping plate; the guide column is slidably connected inside the mounting seat, and the guide column is fixedly connected under the supporting plate; the anti-dropping plate is fixedly connected under the guide column.

4. A permanent magnet motor torque monitoring device as claimed in claim 1, characterized in that: The clamping assembly comprises: a slider and a clamping plate; the slider is slidably connected inside the supporting plate; the clamping plate is fixedly connected to the slider, and a plurality of through holes are opened inside the clamping plate.

5. A permanent magnet motor torque monitoring device as claimed in claim 4, characterized in that: The clamping assembly also includes: a transmission rack, a first transmission shaft and a transmission gear; the transmission rack is fixedly connected to the outside of the slider, and the transmission rack is slidably connected to the inside of the transmission box; the first transmission shaft is rotatably connected to the inside of the transmission box; the transmission gear is coaxially fixedly connected to the top of the first transmission shaft, and the transmission gear is meshed with the transmission rack.

6. A permanent magnet motor torque monitoring device as claimed in claim 5, characterized in that: The clamping assembly also includes: a transmission ratchet and a transmission pawl; the transmission ratchet is coaxially fixedly connected to the bottom of the first transmission shaft; the transmission pawl is rotatably connected inside the transmission box, and the transmission pawl is meshed with the transmission ratchet.

7. A permanent magnet motor torque monitoring device as claimed in claim 6, characterized in that: The clamping assembly also includes: a limit spring, a fixed plate and a return spring; the left and right ends of the limit spring are respectively fixedly connected to the inner side of the transmission pawl and the inside of the transmission box; the fixed plate is fixedly connected under the supporting plate; the front and rear ends of the return spring are fixedly connected to the fixed plate and the slider.

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