Motor torque testing device

Abstract

This application discloses a motor torque testing device, including a motor, a first mounting base, a connecting shaft, a weight, a second mounting base, and a driven component. The motor is mounted on the first mounting base, the weight is sleeved on the connecting shaft, and the driven component is rotatably mounted on the second mounting base. One end of the connecting shaft is connected to the output shaft of the motor, and the other end is used to drive the driven component to rotate. This motor torque testing device can automate the testing of the rated torque value of a motor, improving testing efficiency.

Description

Technical Field

[0001] This application relates to the field of motor performance testing technology, specifically to a motor torque testing device. Background Technology

[0002] As the model car industry continues to develop, the performance requirements for model car motors are becoming increasingly stringent, and rated torque testing is one of the key testing indicators.

[0003] Rated torque testing involves adjusting the rated output voltage on the motor test power supply, applying a rated rotational resistance to the motor's output shaft, and finally testing whether the motor's current value is within acceptable limits. However, traditional rated torque testing often relies on manual operation and measurement, which is not only inefficient but also easily affected by human factors, resulting in inaccurate test results.

[0004] Therefore, it is particularly important to provide a motor torque testing device. Utility Model Content

[0005] To address the technical problem of low efficiency in torque testing of motors in existing technologies, this application provides a motor torque testing device.

[0006] This application proposes a motor torque testing device, including a motor, a first mounting base, a connecting shaft, weights, a second mounting base, and a driven component;

[0007] The motor is mounted on the first mounting base, the weight is sleeved on the connecting shaft, the driven component is rotatably mounted on the second mounting base, one end of the connecting shaft is connected to the output shaft of the motor, and the other end is used to drive the driven component to rotate.

[0008] Preferably, it further includes a coupling, one end of which is connected to the connecting shaft, and the other end extends into the second mounting base and is connected to the driven component.

[0009] Preferably, it further includes a third mounting base, on which a slide block is slidably connected at least one side of the weight, and a first magnetic block is provided on the side of the slide block facing the weight, the first magnetic block being magnetically attracted to the weight.

[0010] Preferably, a second magnetic block is provided on the outer peripheral surface of the weight, which magnetically engages with the first magnetic block.

[0011] Preferably, it further includes an adjustment component for adjusting the mounting position of the slide on the third mounting base to adjust the magnitude of the magnetic force between the weight and the first magnetic block.

[0012] Preferably, the adjustment assembly includes a push rod, a connecting rod, and an elastic element;

[0013] The third mounting base has multiple insertion holes spaced apart, the slide has a through mounting hole, the push rod is inserted into the mounting hole, and the push rod is at least partially exposed on one side of the mounting hole. One end of the connecting rod is inserted into the push rod, and the other end passes through the mounting hole and bends to extend and insert into the insertion hole. The elastic element is sleeved on the connecting rod, and both ends of the elastic element are respectively fixed between the push rod and the cavity wall of the mounting hole.

[0014] Preferably, the third mounting bases on both sides of the weight are provided with slides, and the side of the slide facing the weight is semi-circular, and the two slides clamp the weight.

[0015] Preferably, both the first magnetic block and the second magnetic block are arranged in a circular array of multiple units.

[0016] Preferably, the third mounting base has scale lines engraved along the sliding direction of the slide block, and the scale lines are used to characterize the magnitude of the magnetic force between the slide block and the weight.

[0017] Preferably, the third mounting base is provided with a guide rail, and the slide block is slidably connected to the guide rail.

[0018] Compared with the prior art, the beneficial results of this application are as follows:

[0019] (1) By adding a connecting shaft to the output shaft of the motor and placing a weight on the connecting shaft, after adjusting the rated output voltage of the motor, the rotational inertia applied to the connecting shaft by adjusting the weight is recorded, and the corresponding motor output current value is compared with the standard rated current value, thus realizing the automated testing of the rated torque value of the motor and improving the testing efficiency.

[0020] (2) By adjusting the installation position of the sliding blocks on both sides of the weight by adjusting the component, the magnitude of the magnetic force between the first magnetic block and the second magnetic block can be adjusted, thereby adjusting the magnitude of the rotational inertia applied by the weight to the connecting shaft. There is no need to manually disassemble and assemble the weight to adjust the weight, which further improves the testing efficiency. Attached Figure Description

[0021] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and, together with the description, serve to explain the principles of this application. Other embodiments and many anticipated advantages of these embodiments will be readily recognized as they become better understood through reference to the following detailed description. Elements in the drawings are not necessarily to scale. The same reference numerals refer to corresponding similar parts.

[0022] Figure 1 This is a schematic diagram of the structure of a motor torque testing device according to a specific embodiment of this application;

[0023] Figure 2 This is one of the schematic diagrams illustrating the mounting structure of the slide block according to a specific embodiment of this application;

[0024] Figure 3 This is a second schematic diagram illustrating the mounting structure of the slide block according to a specific embodiment of this application;

[0025] Figure 4 This is a vertical cross-sectional view of the slide and the third mounting base according to a specific embodiment of this application.

[0026] The meanings of the numbers in the diagram are as follows: 1. Base; 2. Motor; 3. First mounting base; 4. Connecting shaft; 5. Weight; 51. Second magnet; 6. Second mounting base; 7. Coupling; 8. Driven component; 9. Third mounting base; 91. Guide rail; 92. Scale line; 93. Insertion hole; 10. Slide; 101. First magnet; 102. Adjustment component; 1021. Push rod; 1022. Connecting rod; 1023. Elastic element; 103. Mounting hole. Detailed Implementation

[0027] In the following detailed description, reference is made to the accompanying drawings, which form part of the detailed description and illustrate illustrative specific embodiments in which the present application may be practiced. In this regard, directional terms such as “top,” “bottom,” “left,” “right,” “up,” “down,” etc., are used with reference to the orientation of the described figures. Because components of the embodiments can be positioned in several different orientations, directional terms are used for illustrative purposes and are by no means limiting. It should be understood that other embodiments may be utilized or logical changes may be made without departing from the scope of the present application. Therefore, the following detailed description should not be taken in a limiting sense, and the scope of the present application is defined by the appended claims.

[0028] This application discloses a motor torque testing device. The specific structure of the motor torque testing device according to an embodiment of this application will be described below with reference to the accompanying drawings.

[0029] Please see Figure 1 The motor torque testing device includes a base 1 and a motor 2, a first mounting base 3, a connecting shaft 4, a weight 5, a second mounting base 6, a coupling 7, and a driven assembly 8, all mounted on the base 1. The motor 2 is mounted on the first mounting base 3, the weight 5 is fixedly sleeved on the connecting shaft 4, and the driven assembly 8 is rotatably mounted on the second mounting base 6. One end of the connecting shaft 4 is connected to the output shaft of the motor 2, and the other end of the connecting shaft 4 is connected to the coupling 7. The other end of the coupling 7 extends into the second mounting base 6 and connects to the driven assembly 8.

[0030] In this embodiment, motor 2 is a car model motor, and driven component 8 is a propeller.

[0031] When testing the rated torque value of motor 2, adjust the rated output voltage value of motor 2. The output shaft of motor 2 drives the connecting shaft 4 and the weight 5 to rotate together. The connecting shaft 4 drives the driven component 8 to rotate through the coupling 7. At this time, according to the rotational inertia applied to the connecting shaft 4 by the installed weight 5, record the corresponding output current value of motor 2 and compare it with the standard rated current value. This can realize the automated testing of the rated torque value of motor 2 and improve the testing efficiency.

[0032] Further, please refer to Figures 1 to 3 The motor torque testing device also includes a third mounting base 9, which is disposed on the base 1 below the weight 5. A slide 10 is disposed on the third mounting base 9, located on at least one side of the weight 5. Specifically, a guide rail 91 is provided on the third mounting base 9 in a horizontal direction, and the slide 10 is slidably connected to the guide rail 91 in a direction close to or away from the weight 5. A first magnetic block 101 is disposed on the side of the slide 10 facing the weight 5. The first magnetic block 101 is glued to the slide 10, and the first magnetic block 101 can magnetically engage with the weight 5.

[0033] When testing the rated torque value of motor 2, the distance between the first magnetic block 101 and the weight 5 can be adjusted by adjusting the position of the slide 10, thereby adjusting the magnitude of the magnetic force between the first magnetic block 101 and the weight 5, and thus adjusting the rotational inertia exerted by the weight 5 on the connecting shaft 4. Compared with the traditional method of changing the weight by disassembling and assembling the weight to adjust the rotational inertia exerted by the weight, this embodiment does not require manual disassembly and assembly of the weight to adjust the weight, further improving the testing efficiency.

[0034] In one specific embodiment, a second magnetic block 51 is provided on the outer peripheral surface of the weight 5, which magnetically engages with the first magnetic block 101. The second magnetic block 51 is also glued to the weight 5. By providing the second magnetic block 51, it can better cooperate with the first magnetic block 101. Compared with the weight 5 itself, the magnetic force between the second magnetic block 51 and the first magnetic block 101 is stronger.

[0035] In one specific embodiment, a slide block 10 is provided on each of the third mounting bases 9 located on both sides of the weight 5, and the side of the slide block 10 facing the weight 5 is semi-circular, with the two slide blocks 10 clamping the weight 5. By providing slide blocks 10 on both sides of the weight 5, the magnetic field distribution on both sides of the weight 5 can be made more uniform.

[0036] In one specific embodiment, both the first magnetic block 101 and the second magnetic block 51 are arranged in a non-continuous manner, with multiple first magnetic blocks 101 and second magnetic blocks 51 arranged in a circular array. This arrangement makes the magnetic field distribution between the first magnetic blocks 101 and the second magnetic blocks 51 more uniform and saves materials.

[0037] In one specific embodiment, a scale line 92 is engraved on the third mounting base 9 located below the guide rail 91 along the sliding direction of the slide block 10. The scale line 92 is used to characterize the magnitude of the magnetic force between the first magnetic block 101 and the second magnetic block 51, that is, to represent the rotational inertia exerted by the entire weight 5 on the connecting shaft 4. When testing the rated torque value of the motor 2, a parameter reference table can be set according to each value of the scale line 92 and the corresponding standard rated current value of the motor 2. Then, the slide block 10 can be slid to different scales to perform tests one by one, further improving the testing efficiency.

[0038] Further, please refer to Figures 2 to 4 The slide 10 is provided with an adjustment component 102, which is used to adjust the installation position of the slide 10 on the third mounting base 9, so as to adjust the magnitude of the magnetic force between the first magnetic block 101 and the second magnetic block 51.

[0039] Specifically, the adjustment assembly 102 includes a push rod 1021, a connecting rod 1022, and an elastic element 1023. A third mounting base 9, located above the guide rail 91, has multiple horizontally spaced insertion holes 93, with different hole 93 positions corresponding to different graduations on the scale line 92. A mounting hole 103 is also provided on the slide block 10. The push rod 1021 is hollow and movably inserted into one side of the mounting hole 103, with at least a portion of the push rod 1021 exposed outside the mounting hole 103 for pressing by the operator. One end of the connecting rod 1022 is inserted into the push rod 1021, and the other end passes through the mounting hole 103 and bends downwards to movably engage with the insertion hole 93. The elastic element 1023 is sleeved on the connecting rod 1022, with both ends of the elastic element 1023 fixed between the push rod 1021 and the cavity wall of the mounting hole 103.

[0040] In this embodiment, the elastic element 1023 is a spring.

[0041] When the slide block 10 needs to be slidable, pressing the push rod 1021 causes the connecting rod 1022 to move and compress the elastic element 1023. The other end of the connecting rod 1022 disengages from the insertion hole 93, allowing the slide block 10 to slide to any scale. When the push rod 1021 is released, under the elastic force of the elastic element 1023, the connecting rod 1022 automatically springs back and inserts into the corresponding insertion hole 93, thereby fixing the slide block 10.

[0042] In summary, the motor torque testing device proposed in this application has the following beneficial effects:

[0043] By adding a connecting shaft 4 to the output shaft of motor 2, and placing a weight 5 on the connecting shaft 4, after adjusting the rated output voltage of motor 2, motor 2 drives the connecting shaft 4 and the weight 5 to rotate. The connecting shaft 4 drives the driven component 8 to rotate through the coupling 7. At this time, the output current value of motor 2 is recorded and compared with the corresponding standard rated current value, so as to realize the automated testing of the rated torque value of motor 2 and improve the testing efficiency.

[0044] Furthermore, by adjusting the mounting positions of the slide blocks 10 on both sides of the weight 5 using the adjusting component 102, the magnitude of the magnetic force between the first magnetic block 101 and the second magnetic block 51 can be adjusted, thereby adjusting the magnitude of the rotational inertia exerted by the weight 5 on the connecting shaft 4, allowing for testing at different measurement points. Compared to the traditional method of changing the weight of the weight by disassembling and assembling it to adjust the rotational inertia, this application eliminates the need for manual disassembly and assembly of the weight, further improving testing efficiency.

[0045] It is obvious that those skilled in the art can make various modifications and alterations to the embodiments of this application without departing from the spirit and scope of this application. In this way, this application also aims to cover such modifications and alterations if they fall within the scope of the claims and their equivalents. The word "comprising" does not exclude the presence of other elements or steps not listed in the claims. The simple fact that certain measures are described in mutually different dependent claims does not indicate that a combination of these measures cannot be used for profit. Any reference numerals in the claims should not be considered limiting in scope.

Claims

1. A motor torque testing device, characterized in that, Includes a motor, a first mounting base, a connecting shaft, weights, a second mounting base, and a driven assembly; The motor is mounted on the first mounting base, the weight is sleeved on the connecting shaft, the driven component is rotatably mounted on the second mounting base, one end of the connecting shaft is connected to the output shaft of the motor, and the other end is used to drive the driven component to rotate.

2. The motor torque testing device according to claim 1, characterized in that, It also includes a coupling, one end of which is connected to the connecting shaft, and the other end of which extends into the second mounting base and is connected to the driven component.

3. The motor torque testing device according to claim 1, characterized in that, It also includes a third mounting base, on which a slide block is slidably connected at least one side of the weight. A first magnetic block is provided on the side of the slide block facing the weight, and the first magnetic block magnetically engages with the weight.

4. The motor torque testing device according to claim 3, characterized in that, A second magnetic block is provided on the outer peripheral surface of the weight, which magnetically engages with the first magnetic block.

5. The motor torque testing device according to claim 3, characterized in that, It also includes an adjustment component for adjusting the mounting position of the slide on the third mounting base to adjust the magnitude of the magnetic force between the weight and the first magnetic block.

6. The motor torque testing device according to claim 5, characterized in that, The adjustment assembly includes a push rod, a connecting rod, and an elastic element; The third mounting base has multiple insertion holes spaced apart, the slide has a through mounting hole, the push rod is inserted into the mounting hole, and the push rod is at least partially exposed on one side of the mounting hole. One end of the connecting rod is inserted into the push rod, and the other end passes through the mounting hole and bends to extend and insert into the insertion hole. The elastic element is sleeved on the connecting rod, and both ends of the elastic element are respectively fixed between the push rod and the cavity wall of the mounting hole.

7. The motor torque testing device according to claim 4, characterized in that, The third mounting bases located on both sides of the weight are provided with slides. The side of the slide facing the weight is semi-circular, and the two slides clamp the weight.

8. The motor torque testing device according to claim 7, characterized in that, Both the first magnetic block and the second magnetic block are arranged in a ring array of multiple units.

9. The motor torque testing device according to claim 3, characterized in that, The third mounting base has scale lines engraved along the sliding direction of the slide block, and the scale lines are used to characterize the magnitude of the magnetic force between the slide block and the weight.

10. The motor torque testing device according to claim 3, characterized in that, The third mounting base is provided with a guide rail, and the slide block is slidably connected to the guide rail.

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