Permanent magnet synchronous motor twin trawling test device

Abstract

The utility model relates to the technical field of permanent magnet synchronous motors, in particular to a permanent magnet synchronous motor twin trawling test device, which comprises an operation table, a fixed seat fixedly connected to the bottom end of the operation table, a spring fixedly connected to the bottom end of the fixed seat, and a connecting layer fixedly connected to the bottom end of the spring. The bottom end of the connecting layer is fixedly connected with an anti-skid layer, and a first fixing hole is formed in the top end of the operation table, the operation table, the first fixing hole, the motor base, the second fixing hole, the motor and other components are arranged, and the motor base is adjusted to the optimal position according to the size of the motor base through the first fixing holes in different positions in the operation table; the first fixing hole and the second fixing hole coincide, and then the motor and the operation table are fixed together through a bolt, so that the problem that an existing permanent magnet synchronous motor twin-trawling test device only has a single fixing hole and cannot be effectively compatible with fixing of motor bases of different sizes is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of permanent magnet synchronous motors, in particular to a permanent magnet synchronous motor drag testing device. Background Art

[0002] The permanent magnet synchronous motor towing test refers to connecting the motor to be tested with the towing equipment, and testing the motor's performance parameters, such as output power, torque, efficiency, response, etc., by loading the load and controlling the motor's speed within a certain speed range. The two motors are loads to each other, and the total loss of the two motors is calculated based on the difference between the electrical input of one motor and the electrical output of the other motor.

[0003] The existing permanent magnet synchronous motor tow test device has only a single fixing hole, which cannot be effectively compatible with motor bases of different sizes; the existing permanent magnet synchronous motor tow test device cannot quickly replace the corresponding size of the coupling according to the different motor shaft sizes, which is not practical. Therefore, a permanent magnet synchronous motor tow test device is proposed to address the above problems. Utility Model Content

[0004] The utility model aims to provide a permanent magnet synchronous motor towing test device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A permanent magnet synchronous motor towing test device comprises an operating table, the bottom end of the operating table is fixedly connected to a fixing seat, the bottom end of the fixing seat is fixedly connected to a spring, the bottom end of the spring is fixedly connected to a connecting layer, the bottom end of the connecting layer is fixedly connected to an anti-slip layer, the top end of the operating table is provided with a first fixing hole, the top end of the operating table is provided with a motor seat, one side of the motor seat is provided with a second fixing hole, the top end of the motor seat is fixedly connected to a motor, one end of the motor is rotatably connected to a motor shaft, the outer side of the motor shaft is fixedly connected to a limiting block, the motor shaft and the outer side of the limiting block are snap-connected with a connecting rod, the outer side of the connecting rod is fixedly connected to a limiting disk, the outer side of the limiting disk is rotatably connected to a clamp, the bottom end of the clamp is fixedly connected to a support plate, and the end of the connecting rod away from the motor shaft is fixedly connected to a coupling.

[0007] Preferably, one end of the support plate away from the clamp is fixedly connected to an operating table.

[0008] Preferably, the connecting rod and the limiting plate form a group, with two groups in total, and are symmetrically arranged at both ends of the coupling.

[0009] Preferably, there are several springs, which are evenly arranged between the fixing seat and the connecting layer.

[0010] Preferably, there are a plurality of the first fixing holes, which are evenly arranged on the surface of the operating table.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. In the utility model, the operating table, the first fixing hole, the motor seat, the second fixing hole and the motor are arranged, and the first fixing holes at multiple different positions on the operating table are adjusted to the optimal position according to the size of the motor seat, so that the first fixing hole and the second fixing hole overlap, and then the motor and the operating table are fixed together by bolts, thereby solving the problem that the existing permanent magnet synchronous motor towing test device has only a single fixing hole and cannot be effectively compatible with the fixing of motor seats of different sizes;

[0013] 2. In the utility model, by setting the connecting rod, the limit plate, the hoop, the coupling and other components, according to the size of the motor shaft, the corresponding connecting rod and coupling are selected, and the hoop is opened by pulling upwards, and the limit plate, the connecting rod and coupling are taken out from the inside of the hoop, and the connecting rod and coupling with the appropriate size are replaced, and then the hoop is re-engaged, and the upper and lower parts of the hoop are fixed together with bolts, thereby solving the problem that the existing permanent magnet synchronous motor drag test device cannot quickly replace the coupling of the corresponding size according to the different motor shaft sizes, and is not practical enough;

[0014] 3. In the utility model, by providing components such as springs and anti-skid layers, most of the vibrations produced during the operation of the motor are reduced, and loose connections caused by the vibrations are prevented. The anti-skid layer at the bottom can effectively prevent the test device from being displaced due to vibration during the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the side cross-sectional structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the utility model from top view.

[0018] In the figure: 1. operating table; 2. fixing seat; 3. spring; 4. connecting layer; 5. anti-skid layer; 6. first fixing hole; 7. motor seat; 8. second fixing hole; 9. motor; 10. motor shaft; 11. limit block; 12. connecting rod; 13. limit plate; 14. clamp; 15. coupling; 16. support plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0021] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0022] See also Figure 1-3 , the utility model provides a technical solution:

[0023] A permanent magnet synchronous motor towing test device comprises an operating table 1, wherein a fixing seat 2 is fixedly connected to the bottom end of the operating table 1, a spring 3 is fixedly connected to the bottom end of the fixing seat 2, a connecting layer 4 is fixedly connected to the bottom end of the spring 3, an anti-slip layer 5 is fixedly connected to the bottom end of the connecting layer 4, a first fixing hole 6 is provided at the top end of the operating table 1, a motor seat 7 is provided at the top end of the operating table 1, a second fixing hole 8 is provided at one side of the motor seat 7, a motor 9 is fixedly connected to the top end of the motor seat 7, a motor shaft 10 is rotatably connected to one end of the motor 9, a limiting block 11 is fixedly connected to the outer side of the motor shaft 10, a connecting rod 12 is snap-connected to the outer side of the motor shaft 10 and the limiting block 11, a limiting disk 13 is fixedly connected to the outer side of the connecting rod 12, a hoop 14 is rotatably connected to the outer side of the limiting disk 13, a supporting plate 16 is fixedly connected to the bottom end of the hoop 14, and a coupling 15 is fixedly connected to the end of the connecting rod 12 away from the motor shaft 10.

[0024] One end of the support plate 16 away from the clamp 14 is fixedly connected to the operating table 1. The connecting rod 12 and the limit plate 13 are a group, and there are two groups in total, which are symmetrically arranged at both ends of the coupling 15. The number of springs 3 is several and they are evenly arranged between the fixed seat 2 and the connecting layer 4. The number of first fixing holes 6 is several and they are evenly arranged on the surface of the operating table 1.

[0025] Workflow: When the permanent magnet synchronous motor 9 is required to be tested in pairs, the whole device is powered by external power. First, according to the size of the motor shaft 10, the connecting rod 12 of the corresponding size is selected. Next, the clamp 14 is opened by pulling upwards, and the limit plate 13, the connecting rod 12 and the coupling 15 are taken out from the inside of the clamp 14, and the connecting rod 12 of the appropriate size is replaced. Then, the clamp 14 is re-engaged, and the upper and lower parts of the clamp 14 are fixed together with bolts. After adjustment, the motor shafts 10 and the limit blocks 11 of the motors 9 on both sides are respectively inserted into the connecting rods 12 on both sides. Then, according to the different sizes of the motors 9 on both sides, the corresponding position is fine-tuned to make the first fixing hole 6 and the second fixing hole 8 overlap, and then the bolts are inserted into the first fixing hole 6 and the second fixing hole 8 to fix the motor 9 and the operating table 1 together. Finally, the motor 9 is started, and the motor 9 drives the motor shaft 10 and the limit block 11 to rotate. The motor shaft 10 and the limit block 11 drive the connecting rod 12 and the limit plate 13 to rotate in the hoop 14, and the connecting rod 12 drives the coupling 15 to rotate. The coupling 15 makes the motors 9 on both sides rotate against each other, so as to perform a towing test.

[0026] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A permanent magnet synchronous motor towing test device, comprising an operating table (1), characterized in that: The bottom end of the operating table (1) is fixedly connected to a fixing seat (2), the bottom end of the fixing seat (2) is fixedly connected to a spring (3), the bottom end of the spring (3) is fixedly connected to a connecting layer (4), the bottom end of the connecting layer (4) is fixedly connected to an anti-slip layer (5), the top end of the operating table (1) is provided with a first fixing hole (6), the top end of the operating table (1) is provided with a motor seat (7), one side of the motor seat (7) is provided with a second fixing hole (8), the top end of the motor seat (7) is fixedly connected to a motor (9), the motor (9 ) is rotatably connected to a motor shaft (10), the outer side of the motor shaft (10) is fixedly connected to a limiting block (11), the outer sides of the motor shaft (10) and the limiting block (11) are snap-connected to a connecting rod (12), the outer side of the connecting rod (12) is fixedly connected to a limiting disk (13), the outer side of the limiting disk (13) is rotatably connected to a clamp (14), the bottom end of the clamp (14) is fixedly connected to a support plate (16), and the end of the connecting rod (12) away from the motor shaft (10) is fixedly connected to a coupling (15).

2. A permanent magnet synchronous motor towing test device according to claim 1, characterized in that: One end of the support plate (16) away from the clamp (14) is fixedly connected to the operating table (1).

3. A permanent magnet synchronous motor towing test device according to claim 1, characterized in that: The connecting rod (12) and the limiting plate (13) form a group, with two groups in total, and are symmetrically arranged at both ends of the coupling (15).

4. A permanent magnet synchronous motor towing test device according to claim 1, characterized in that: The number of the springs (3) is several and they are evenly arranged between the fixing seat (2) and the connecting layer (4).

5. The permanent magnet synchronous motor towing test device according to claim 1, characterized in that: The number of the first fixing holes (6) is several and they are evenly arranged on the surface of the operating table (1).

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