Motor power torque test bench

Abstract

The utility model belongs to the field of motor test equipment, and provides a motor power torque test board which comprises a workbench, a plunger pump, a water tank, a detection assembly and a control system. Wherein the plunger pump is mounted on the workbench; the water tank is connected to the plunger pump and can form water circulation through the plunger pump; the detection assembly comprises a torque sensor used for detecting the torque and a first coupling and a second coupling which are connected to the two opposite sides of the torque sensor. The torque sensor is connected to the power input end of the plunger pump through the first coupling and connected with the power output end of the to-be-tested target motor through the second coupling. The control system is in communication connection with the torque sensor and the target motor and used for controlling the target motor.

Description

Technical Field

[0001] This application belongs to the field of motor test equipment, and particularly relates to a motor power and torque test bench. Background Art

[0002] In the fields of motor manufacturing and application, accurately testing the power and torque of motors is an important link to ensure the quality and performance of motors. Traditional motor power and torque test benches usually use analog load devices for testing, but such devices often adopt a braking structure and are prone to generating a large amount of heat due to friction and energy conversion during operation, resulting in the inability to conduct long-term testing, thus affecting the test efficiency and accuracy. Therefore, it is necessary to solve the above technical problems. Summary of the Invention

[0003] The purpose of the embodiments of this application is to provide a motor power and torque test bench to solve the technical problem of low efficiency in motor torque testing in the prior art.

[0004] To achieve the above purpose, the technical solution adopted in this application is: to provide a motor power and torque test bench, including:

[0005] A workbench;

[0006] A plunger pump, installed on the workbench;

[0007] A water tank, connected to the plunger pump and capable of forming a water cycle through the plunger pump;

[0008] A detection component, including a torque sensor for detecting the torque magnitude and a first coupling and a second coupling connected to opposite sides of the torque sensor, the torque sensor is connected to the power input end of the plunger pump through the first coupling and is connected to the power output end of the motor to be tested through the second coupling;

[0009] A control system, communicatively connected to the torque sensor and the target motor respectively and used to control the target motor.

[0010] Optionally, the detection component further includes a replaceable support detachably connected to the workbench and used for installing and fixing the target motor;

[0011] The replaceable support has multiple models and can form different spacings between the output shaft of the target motor and the workbench plate.

[0012] Optionally, the detection component further includes a mounting bracket connected to the replaceable support;

[0013] The mounting bracket is preset with an annular groove adapted to the target motor and used for installing and fixing the target motor.

[0014] Optionally, the detection component further includes a filter for filtering impurities;

[0015] The filter is disposed on the pipeline connecting the plunger pump and the water tank.

[0016] Optionally, the water tank is disposed inside the workbench.

[0017] Optionally, the control system further includes a display screen for displaying real-time data of power, rotational speed and torque, and a touch screen for human-machine interaction.

[0018] Optionally, the control system further includes a control component for controlling the target motor, and the control component includes an operation button for making the target motor operate at a predetermined power, a start button for controlling the start of the target motor, and a speed regulation button for adjusting the rotational speed of the target motor;

[0019] The control component is provided with multiple groups according to the preset operating power of the target motor.

[0020] The beneficial effects of the motor power and torque test bench provided by this application are as follows: Compared with the prior art, in the motor power and torque test bench provided by this application, the plunger pump installed on the workbench can continuously circulate the water in the water tank under the drive of the target motor to be tested. In this way, the torque sensor connected between the plunger pump and the target motor through the first coupling and the second coupling can timely and accurately feedback the torque magnitude and rotational speed information during the operation of the target motor to the control system. Since the plunger pump itself generates less heat during the working process and can be cooled by the water in the water tank during each water circulation, that is, the damping generated during the process of the water in the water tank forming a circulation through the plunger pump not only constitutes a simulated load together with the plunger pump, but also can take away the heat generated during the operation of the plunger pump and act as a cooling medium. This enables the plunger pump as a simulated load not to overheat even when working continuously for a long time. Therefore, the motor power and torque test bench provided in this application can be continuously used for motor torque testing for a long time and can significantly improve the efficiency of motor torque testing, far superior to the prior art. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 Schematic diagram of the overall structure of the motor power and torque test bench provided by the embodiment of this applicationFigure I ;

[0023] Figure 2 This is a schematic diagram of the overall structure of the motor power and torque test bench provided by the embodiments of the present application Figure II 。

[0024] Among them, the reference numerals in the figure: 101, workbench; 102, plunger pump; 103, water tank; 104, torque sensor; 105, first coupling; 106, second coupling; 107, replaceable support; 108, mounting bracket; 109, annular groove; 110, filter; 111, display screen; 112, touch screen; 113, operation button; 114, start button; 115, speed regulation button; 200, target motor. Detailed implementation manners

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0026] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0027] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0029] Please refer to Figure 1 and Figure 2, a motor power torque test bench provided by an embodiment of the present application will be described below. This motor power torque test bench includes a workbench 101, a plunger pump 102, a water tank 103, a detection component, and a control system. Among them:

[0030] The plunger pump 102 is installed on the workbench 101; the water tank 103 is connected to the plunger pump 102 and can form a water cycle through the plunger pump 102; the detection component includes a torque sensor 104 for detecting the torque magnitude and a first coupling 105 and a second coupling 106 connected to opposite sides of the torque sensor 104. The torque sensor 104 is connected to the power input end of the plunger pump 102 through the first coupling 105 and is connected to the power output end of the target motor 200 to be tested through the second coupling 106; the control system is communicatively connected to the torque sensor 104 and the target motor 200 respectively and is used to control the target motor 200. Here, the torque sensor 104 is selected to be a torque sensor that can output torque and speed parameters.

[0031] According to the above structure provided in this embodiment, in the motor power torque test bench provided in this embodiment, the plunger pump 102 installed on the workbench 101 can continuously circulate the water in the water tank 103 under the drive of the target motor 200 to be tested. In this way, the torque sensor 104 connected between the plunger pump 102 and the target motor 200 through the first coupling 105 and the second coupling 106 can timely and accurately feedback the torque magnitude and speed information during the operation of the target motor 200 to the control system. The control system calculates according to the obtained torque and speed parameters combined with the current data monitored by the control system through a set algorithm to quickly obtain the output torque and power value of the target motor 200 and determine whether it meets the set value. Since the heat generated during the operation of the plunger pump 102 itself is less and can be cooled by the water in the water tank 103 during each water cycle, that is, the damping generated during the process of the water in the water tank 103 forming a cycle through the plunger pump 102 not only constitutes a simulated load together with the plunger pump 102, but also can take away the heat during the operation of the plunger pump 102 to act as a cooling medium. This enables the plunger pump 102 as a simulated load not to overheat even when working continuously for a long time. Therefore, the motor power torque test bench provided in this embodiment can be continuously used for motor torque testing for a long time and can significantly improve the efficiency of motor torque testing. This has very good practicability for the torque and power testing of target motors used in batch production in a motor assembly workshop, far superior to the prior art.

[0032] In another embodiment of the present application, please refer to Figure 1 and Figure 2, the detection component further includes a replaceable support 107 detachably connected to the workbench 101 and used for installing and fixing the target motor 200; the replaceable support 107 has multiple models and can form different spacings between the output shaft of the target motor 200 and the workbench 101 plate. According to the above structure provided in this embodiment, the replaceable support 107 can be fixed on the workbench 101 by bolts or other fastening devices. By the multiple designed models of the replaceable support 107, the distance between the output shaft of the target motor 200 and the workbench 101 can be flexibly adjusted to meet the height requirements of different motors, so that different models of target motors 200 can be more quickly and correspondingly connected to the plunger pump 102, which is beneficial to further improving the torque test efficiency of the motor power torque test bench in this embodiment.

[0033] In another embodiment of the present application, please refer to Figure 1 and Figure 2 , the detection component further includes a mounting bracket 108 connected to the replaceable support 107; a ring groove 109 adapted to the target motor 200 and used for installing and fixing the target motor 200 is preset on the mounting bracket 108. According to the above structure provided in this embodiment, the target motor 200 can be more quickly installed on the replaceable support 107 through the ring groove 109 provided on the mounting bracket 108, which is beneficial to further improving the torque test efficiency of the motor power torque test bench in this embodiment.

[0034] In another embodiment of the present application, please refer to Figure 1 and Figure 2 , the detection component further includes a filter 110 for filtering impurities; the filter 110 is arranged on the pipeline connecting the plunger pump 102 and the water tank 103. According to the above structure provided in this embodiment, the filter 110 can effectively filter impurities in the water so that the plunger pump 102 can operate stably for a long time, which is beneficial to further improving the torque test efficiency of the motor power torque test bench in this embodiment. It can be understood that the filter 110 is arranged at the water inlet end of the plunger pump 102.

[0035] In another embodiment of the present application, please refer to Figure 1 and Figure 2 , the water tank 103 is arranged inside the workbench 101. According to the above structure provided in this embodiment, the water tank 103 arranged inside the workbench 101 can be set to a larger capacity on the one hand, and can provide a larger installation space for the target motor 200 and the plunger pump 102 on the other hand, which is beneficial to further improving the torque test efficiency of the motor power torque test bench in this embodiment.

[0036] In another embodiment of the present application, please refer to Figure 1 and Figure 2, the control system further includes a display screen 111 for displaying real-time data of power, rotational speed, and torque, and a touch screen 112 for human-machine interaction. According to the above structure provided in this embodiment, the display screen 111 can display the power, rotational speed, and torque data of the motor in real time during the test, facilitating the operator to monitor the test results. The touch screen 112 can provide a friendly user interface, allowing the operator to set test parameters and display real-time curves of the power, rotational speed, and torque of the motor under test, etc., and compare them with the corresponding set curves. When the measured value exceeds the set value, a warning message is issued, which is beneficial to further improving the torque test efficiency of the motor power torque test bench in this embodiment.

[0037] In another embodiment of the present application, please also refer to Figure 1 and Figure 2 , the control system further includes a control component for controlling the target motor 200. The control component includes an operation button 113 for making the target motor 200 operate at a predetermined power, a start button 114 for controlling the start of the target motor 200, and a speed control button 115 for adjusting the rotational speed of the target motor 200; the control component is correspondingly provided with multiple groups according to the preset operating power of the target motor 200. According to the above structure provided in this embodiment, multiple groups of control components can quickly switch the power supply parameters for the target motors 200 with different powers, which is beneficial to further improving the torque test efficiency of the motor power torque test bench in this embodiment. For the sake of illustration, in this embodiment, it is taken that the control component is set in three groups as an example for description, and its test powers can be correspondingly set to 3 kw, 4 kw, and 5 kw, which will not be elaborated here.

[0038] In addition, it should be noted that in all the above embodiments of the present application, a power switch, a lighting switch, and several control buttons for controlling the target motor 200 to start, pause, and stop, etc. can also be provided on the motor power torque test bench. These structures are all conventional technical means in the art and will not be elaborated here too much.

[0039] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A motor power and torque test bench, characterized in that Comprising: Workbench (101); Plunger pump (102), installed on the workbench (101); Water tank (103), connected to the plunger pump (102) and capable of forming a water cycle through the plunger pump (102); Detection assembly, including a torque sensor (104) for detecting the magnitude of torque and a first coupling (105) and a second coupling (106) connected to opposite sides of the torque sensor (104), the torque sensor (104) being connected to the power input end of the plunger pump (102) through the first coupling (105) and connected to the power output end of the motor (200) to be tested through the second coupling (106); Control system, communicatively connected to the torque sensor (104) and the target motor (200) respectively and used to control the target motor (200).

2. The motor power torque test bench according to claim 1, characterized in that: The detection assembly further includes a replaceable support (107) detachably connected to the workbench (101) and used for installing and fixing the target motor (200); The replaceable support (107) has multiple models and can form different spacings between the output shaft of the target motor (200) and the workbench (101) plate.

3. The motor power torque test bench according to claim 2, characterized in that: The detection assembly further includes a mounting bracket (108) connected to the replaceable support (107); A ring groove (109) adapted to the target motor (200) and used for installing and fixing the target motor (200) is preset on the mounting bracket (108).

4. The motor power torque test bench according to claim 1, characterized in that: The detection assembly further includes a filter (110) for filtering impurities; The filter (110) is arranged on the pipeline connecting the plunger pump (102) and the water tank (103).

5. The motor power torque test bench according to claim 1, characterized in that: The water tank (103) is arranged inside the workbench (101).

6. The motor power torque test bench according to claim 1, characterized in that: The control system further includes a display screen (111) for displaying real-time data of power, speed and torque and a touch screen (112) for human-computer interaction.

7. The motor power torque test bench according to claim 1, characterized in that: The control system further includes a control component for controlling the target motor (200), the control component including an operation button (113) for making the target motor (200) operate at a predetermined power, a start button (114) for controlling the start of the target motor (200), and a speed regulation button (115) for adjusting the speed of the target motor (200); The control component is provided with multiple groups according to the preset operating power of the target motor (200).

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