Motor torque testing device

Abstract

The utility model discloses a motor torque testing device which comprises a workbench, a partition plate is vertically arranged in the middle of the upper portion of the workbench, the partition plate divides the upper portion of the workbench into a load area and a to-be-tested area, a first load motor and a second load motor are arranged on the load area, a bearing plate is arranged on the to-be-tested area, and the first load motor and the second load motor are arranged on the bearing plate. A first station and a second station are arranged on the bearing plate, a first coupler and a second coupler are rotationally arranged in the middle of the partition plate, one end of the first coupler is connected with the output end of a first load motor, and one end of the second coupler is connected with the output end of a second load motor; a first torque sensor is connected between the first coupler and the output end of the first load motor, and a second torque sensor is connected between the second coupler and the output end of the second load motor. According to the scheme, torque testing can be conveniently carried out on motors of different specifications.

Description

TECHNICAL FIELD

[0001] The utility model belongs to motor torque test technical field, concretely relates to a motor torque testing device. BACKGROUND

[0002] The motor torque test is used for evaluating the torque output capability of the motor under different load conditions. When the torque of the motor changes greatly at a certain moment during the movement, it may cause the load carrying capacity to decrease and the motor to be blocked. Therefore, the detection of the load carrying capacity of the motor can be realized by testing the motor torque. In the prior art, two motors are usually used for the test during the motor test, one of which provides a load, and a torque sensor is installed at the connection between the load motor and the motor to be tested, so as to accurately measure the torque. The output shafts of the load motor and the motor to be tested are connected through a shaft coupling 7, the load motor and the motor to be tested are started and rotated in opposite directions, and the torque sensor is installed at the connection between the load motor and the motor to be tested, so as to accurately measure the torque.

[0003] A large-torque motor test tool is disclosed in Chinese Patent No. 2022232134796, which comprises a base, a test motor located above the base, and an output end of the test motor connected with a first adapter shaft, a torque sensor and a second adapter shaft connected with the output end of the motor to be tested in sequence along the output direction. A first adjusting gasket for supporting the test motor, a first flange support for bearing the torque of the test motor, a second flange support for bearing the torque of the motor to be tested and a second adjusting gasket for supporting the test motor are sequentially arranged on the base along the output direction of the test motor. The output end of the test motor, the first adapter shaft, the torque sensor and the second adapter shaft are coaxially arranged.

[0004] The above-mentioned scheme has the advantages of simple structure and convenient installation, but when testing different specifications of motors, the corresponding load motor needs to be replaced for adaptation, and then the position of the replaced load motor needs to be adjusted, which is relatively cumbersome to operate. UTILITY MODEL CONTENTS

[0005] In order to solve the above problems, the utility model provides a motor torque testing arrangement, including work table, the upper middle part of work table is equipped with the baffle, the upper part of work table is divided into load area and the area to be measured by baffle, be equipped with first load motor and second load motor on load area, be equipped with bearing plate on the area to be measured, be equipped with first station and second station on bearing plate, the middle rotation of baffle is equipped with first coupling and second coupling, one end of first coupling is connected with the output end of first load motor, one end of second coupling is connected with the output end of second load motor, first torque sensor is connected between first coupling and the output end of first load motor, second torque sensor is connected between second coupling and the output end of second load motor.

[0006] Preferably, a connecting portion is provided between the first torque sensor and the output end of the first load motor, shaft holes are axially formed on both sides of the connecting portion, and locking holes are radially formed on both sides of the connecting portion.

[0007] Preferably, a hydraulic telescopic rod is provided below the work table in the area to be measured, and the output end of the hydraulic telescopic rod is connected to the bottom of the bearing plate through the work table.

[0008] Preferably, a first slide rail and a first linear locking groove are provided on the load area, the first slide rail and the first linear locking groove are arranged in parallel, a mounting plate is slidably arranged on the first slide rail, the bottom of the first load motor is arranged on the mounting plate, second locking bolts are arranged on both sides of the mounting plate, and the mounting plate and the first linear locking groove are connected by the second locking bolts.

[0009] Preferably, a second slide rail and a second linear locking groove are provided on the bearing plate, and the second slide rail and the second linear locking groove are arranged in parallel.

[0010] The utility model has the advantages that:

[0011] 1. The first load motor and the second load motor are arranged in the load area, the rated power and the rated torque of the two motors are different, and the load demand can be adapted. This means that when testing different specifications of the motor to be tested, the load motor does not need to be frequently replaced, and only the appropriate load motor needs to be selected according to the specifications of the motor to be tested, thereby greatly improving the flexibility of the test.

[0012] 2. The bearing plate can be raised and lowered in the scheme, so that the tester can easily adjust the up-down position of the bearing plate according to the size of the different motors and the test demand, ensure that the motor to be tested and the coupling are more closely and stably connected, and thereby improve the accuracy of the test.

[0013] 3. In this scheme, the bearing plate is provided with sliding rails and strip-shaped locking grooves, so that the transverse position of the motor to be tested can be flexibly adjusted according to test requirements. This flexibility helps to adapt to different specifications of the motor to be tested, ensuring that they are correctly connected with the load motor, thereby improving the accuracy and reliability of the test. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure diagram of the utility model.

[0015] Figure 2 It is a front view of the utility model.

[0016] Figure 3 It is a structure diagram of the connecting part of the utility model.

[0017] Figure 4 It is a sectional view of the connecting part of the utility model.

[0018] In the figure: 1 workbench, 2 partition, 3 load area, 4 area to be tested, 5 first load motor, 6 second load motor, 7 bearing plate, 8 first work station, 9 second work station, 10 first shaft coupling, 11 second shaft coupling, 12 first torque sensor, 13 connecting part, 14 shaft hole, 15 locking hole, 16 first locking bolt, 17 hydraulic telescopic rod, 18 first sliding rail, 19 first strip-shaped locking groove, 20 mounting plate, 21 second locking bolt, 22 second sliding rail, 23 second strip-shaped locking groove. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model.

[0020] In the description of the utility model, it should be explained that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Simultaneously, when an component is referred to as "fixed to" or "equipped on" another component, it can be directly on the other component or may have an intervening component present. When an component is referred to as "connected to" another component, it can be directly connected to the other component or may have an intervening component present. When an component is referred to as "fixedly connected to" another component, it can be a common fixed connection method such as welding, bolting, or gluing. In short, those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Example 1, such as Figures 1-2 As shown, a motor torque testing device includes a workbench 1. A partition 2 is vertically arranged above the center of the workbench 1, dividing the upper part of the workbench 1 into a load area 3 and a test area 4. The test area 4 is used to install the motor under test, while the load area 3 is used to install the load motor. The load motor includes DC load motors and AC load motors, etc. The load motor generates mechanical resistance or load by consuming electrical energy based on electromagnetic induction or piezoelectric effect. During the test, the load motor is connected to the motor under test, and the two are synchronized through a coupling or other connecting device. As the output torque of the motor under test increases, the load motor provides corresponding resistance by adjusting its internal magnetic field or mechanical structure, thereby simulating the load conditions in actual operation.

[0023] Load area 3 is equipped with a first load motor 5 and a second load motor 6. The rated power and rated torque of the two load motors are different to adapt to different load requirements. Test area 4 is equipped with a support plate 7, which has a first station 8 and a second station 9, allowing for easy installation of motors of different specifications. A first coupling 10 and a second coupling 11 are rotatably mounted in the middle of partition 2. One end of the first coupling 10 is connected to the output end of the first load motor 5, and one end of the second coupling 11 is connected to the output end of the second load motor 6. A first torque sensor 12 is connected between the first coupling 10 and the output end of the first load motor 5, and a second torque sensor (not shown in the figure) is connected between the second coupling 11 and the output end of the second load motor 6.

[0024] According to the demand, the motor to be tested in the corresponding specification range is installed in the corresponding station on the bearing plate 7, and is connected with the output end of the load motor of the corresponding specification through the shaft coupling and the torque sensor, to ensure that the rated power, torque and speed range of the load motor can cover the test range of the motor to be tested. According to the test parameter setting, after the power supply of the motor to be tested is turned on, the load motor starts to load. At this time, the torque sensor starts to collect and transmit torque data in real time, and records the torque data in real time, while monitoring the speed, current and other parameters of the load motor, to ensure the stability and accuracy of the test process. During the test process, the loading mode or load size of the load motor can be adjusted gradually according to the needs, to simulate different working conditions. After the test is completed, the load motor gradually unloads the load until it completely stops. The data collected during the test process is saved to a designated location, and subsequent data processing and analysis work is carried out. By comparing the torque data under different loads, the performance of the motor to be tested can be evaluated. Since two load motors of different specifications are set, this scheme can cover a wider test range. Whether it is a small torque or a large torque motor to be tested, a suitable load motor can be found for testing, so as to ensure the accuracy and reliability of the test results.

[0025] In combination Figures 3-4 A connecting part 13 is arranged between the first torque sensor 12 and the output end of the first load motor 5, and the connecting part 13 is approximately in a cylindrical structure. Axial shaft holes 14 are arranged on both sides of the connecting part 13, and locking holes 15 are arranged radially on both sides of the connecting part 13. First locking bolts 16 are connected to the locking holes 15. The shaft rod on the first torque sensor 12 and the output end of the first load motor 5 are respectively inserted into the shaft holes 14 on both sides of the connecting part 13. The shaft rod on the first torque sensor 12 and the output end of the first load motor 5 are also matched with the locking holes 15 to form insertion holes. When the first locking bolts 16 are screwed into the locking holes 15 and the insertion holes, the connection between the first torque sensor 12 and the output end of the first load motor 5 can be quickly completed, and the subsequent disassembly is also very convenient. This facilitates the disassembly and maintenance of the load motor.

[0026] The hydraulic telescopic rod 17 is arranged below the workbench 1 in the test area 4, and the output end of the hydraulic telescopic rod 17 is connected to the bottom of the bearing plate 7 through the workbench 1. The hydraulic telescopic rod 17 can drive the bearing plate 7 to rise and fall. The rising and falling of the bearing plate 7 can enable the test personnel to easily adjust the up-down position of the bearing plate 7 according to the size of different motors and test requirements, so as to ensure that the motor to be tested and the shaft coupling are more closely and stably connected, thereby improving the accuracy of the test.

[0027] The first slide rail 18 and the first strip-shaped locking groove 19 are arranged in parallel, the mounting plate 20 is arranged on the first slide rail 18 in a sliding mode, the bottom of the first load motor 5 is arranged on the mounting plate 20, the second locking bolt 21 is arranged on both sides of the mounting plate 20, and the mounting plate 20 is connected with the first strip-shaped locking groove 19 through the second locking bolt 21. The mounting plate 20 can slide along the first slide rail 18 to move away from or close to the torque sensor and the shaft coupling, and the position of the mounting plate 20 is fixed through the second locking bolt 21, and the mounting plate 20 can drive the load motor to adjust the position. This makes the position of the load motor flexible to adjust according to needs. Whether it is convenient to connect different specifications of load motors or to optimize the test layout, the mounting plate 20 can be simply slid to achieve, which greatly improves the flexibility and adaptability of the test. The bottom of the second load motor 6 is also adjusted in position through the mounting plate 20.

[0028] The second slide rail 22 and the second strip-shaped locking groove 23 are arranged in parallel on the bearing plate 7, the mounting plate 20 is arranged below the motor to be tested in a sliding mode, and is arranged on the second slide rail 22 in a sliding mode and is fixed with the second strip-shaped locking groove 23 through corresponding bolts, so that the position of the motor to be tested can also be flexibly adjusted according to test requirements. Such flexibility helps to adapt to different specifications of the motor to be tested, ensures that they are correctly connected with the load motor, and improves the accuracy and reliability of the test.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An electric machine torque testing device, characterized by: The utility model provides a load test platform, including workbench (1), the middle vertical of workbench (1) is equipped with the baffle (2), the baffle (2) divides the top of workbench (1) into load area (3) and the area (4) to be measured, be equipped with first load motor (5) and second load motor (6) on load area (3), be equipped with bearing plate (7) on the area (4) to be measured, be equipped with first station (8) and second station (9) on bearing plate (7), the middle rotation of baffle (2) is equipped with first coupling (10) and second coupling (11), one end of first coupling (10) is connected with the output of first load motor (5), one end of second coupling (11) is connected with the output of second load motor (6), be connected with the output of first load motor (5) between first coupling (10) and first load motor (5) first torque sensor (12), be connected with the output of second load motor (6) between second coupling (11) and second load motor (6) second torque sensor.

2. The motor torque testing device of claim 1, wherein: The first torque sensor (12) is provided between the output of the first load motor (5), and the connecting part (13) is axially provided with a shaft hole (14) on both sides of the connecting part (13), and the locking hole (15) is radially provided on both sides of the connecting part (13), and the first locking bolt (16) is connected to the locking hole (15).

3. The motor torque testing device of claim 2, wherein: The workbench (1) is provided below the area to be measured (4) with a hydraulic telescopic rod (17), and the output end of the hydraulic telescopic rod (17) passes through the workbench (1) and is connected to the bottom of the bearing plate (7).

4. The motor torque testing device of claim 3, wherein: The load area (3) is provided with a first slide rail (18) and a first strip-shaped locking groove (19), and the first slide rail (18) and the first strip-shaped locking groove (19) are arranged in parallel, and the mounting plate (20) is slidably arranged on the first slide rail (18), and the bottom of the first load motor (5) is arranged on the mounting plate (20), and the second locking bolt (21) is arranged on both sides of the mounting plate (20), and the mounting plate (20) and the first strip-shaped locking groove (19) are connected by the second locking bolt (21).

5. The motor torque testing device of claim 4, wherein: The bearing plate (7) is provided with a second slide rail (22) and a second strip-shaped locking groove (23), and the second slide rail (22) and the second strip-shaped locking groove (23) are arranged in parallel.

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