A motor pair drag test mechanism and test equipment

Abstract

The application provides a motor pair drag test mechanism, which comprises a test bench base, a support frame, a fixed torque measuring instrument, a first motor and a second motor; the first motor is fixed to a first support plate and is connected to one end of the fixed torque measuring instrument; the second motor is fixed to a second support plate and is connected to the other end of the fixed torque measuring instrument; the second motor is arranged opposite to the first motor, and the axis of the second motor is in the same straight line as the axis of the first motor; at this time, the second motor and the first motor are both installed on the support frame and are respectively installed on the second support plate and the first support plate; the first support plate and the second support plate are arranged opposite to each other and are an integrated structure, so that the stability between the first support plate and the second support plate is ensured, screw fixing between the first support plate and the second support plate is avoided, the coaxial precision of the motor pair drag test mechanism is improved, and meanwhile, the support frame with the integrated structure has a high inherent frequency to avoid resonance.

Description

Technical Field

[0001] This invention relates to the technical field of testing equipment, and more particularly to a motor-driven test mechanism and testing equipment. Background Technology

[0002] With the development of technology, motor-to-motor test benches have become an essential key testing device in the motor development and testing process. They are used to test various performance indicators and fatigue durability of motors in motor-to-motor tests.

[0003] In the existing technology, the existing motor-to-motor test mechanism includes a first motor assembly, a fixed torque measuring instrument, and a second motor assembly. The fixed torque measuring instrument is located between the first motor assembly and the second motor assembly. The first motor assembly and the second motor assembly are arranged separately. At this time, the first motor assembly and the second motor assembly are aligned by human intervention. The support frame is composed of multiple support plates and is fixedly connected by screws. The first motor assembly and the second motor assembly are installed on the support frame, which can easily affect the coaxial accuracy between the first motor assembly and the second motor assembly, resulting in poor coaxial accuracy of the existing motor-to-motor test mechanism. Summary of the Invention

[0004] The purpose of this invention is to provide a motor-to-motor drag test mechanism and testing equipment. A support frame is mounted on a test bench base. The support frame includes a first support plate and a second support plate, which are arranged opposite to each other and are an integrated structure. A receiving groove is formed between the first and second support plates. A fixed torque measuring instrument is housed in the receiving groove and fixed to the support frame. A first motor is fixed to the first support plate and connected to one end of the fixed torque measuring instrument. A second motor is fixed to the second support plate and connected to the other end of the fixed torque measuring instrument. The second motor is arranged opposite to the first motor, and the axis of the second motor is collinear with the axis of the first motor. Both the second and first motors are mounted on the support frame and respectively on the second and first support plates. The relative arrangement and integrated structure of the first and second support plates ensures stability between them, avoids screw fixing, and improves the coaxial accuracy of the motor-to-motor drag test mechanism. Furthermore, the integrated support frame has a higher natural frequency to avoid resonance.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A motor-to-drive test mechanism is used in testing equipment; the motor-to-drive test mechanism includes:

[0007] Test bench base;

[0008] A support frame is installed on the base of the test bench. The support frame includes a first support plate and a second support plate, which are arranged opposite to each other and are an integral structure. A receiving groove is formed between the first support plate and the second support plate.

[0009] A fixed torque measuring instrument is housed in the receiving groove and fixed to the support frame;

[0010] The first motor is fixed to the first support plate and connected to one end of the fixed torque measuring instrument;

[0011] The second motor is fixed to the second support plate and connected to the other end of the fixed torque measuring instrument; the second motor is arranged opposite to the first motor, and the axis of the second motor is in the same straight line as the axis of the first motor.

[0012] Optionally, the support frame further includes a base plate; the base plate is located between the first support plate and the second support plate, and is integrally connected to the first support plate and the second support plate; the base plate is fixed to the test bench base; the test bench base is an integral structure.

[0013] Optionally, the support frame is a casting or a one-piece molded part.

[0014] Optionally, a first mounting plate and a first connecting plate are provided between the first motor and the first support plate; the first connecting plate is connected to the first support plate; the first mounting plate is located between the first connecting plate and the first motor, and the first motor is mounted on the first connecting plate through the first mounting plate;

[0015] The output end of the first motor passes through the first mounting plate, the first connecting plate, and the first support plate, and is connected to one end of the fixed torque measuring instrument.

[0016] Optionally, the first connecting plate and the first supporting plate have multiple first connection positions, and the multiple first connection positions are arranged in a square.

[0017] Optionally, the first mounting plate is a circular piece, and a first mounting hole is provided at the center of the first mounting plate for mounting the first motor; the axis of the first mounting hole is collinear with the axis of the output end of the first motor.

[0018] The first mounting plate and the first connecting plate have multiple second connection positions, which are arranged in a circular pattern.

[0019] Optionally, the fixed torque measuring instrument is used to measure the rotational speed of the first motor and the second motor;

[0020] The motor-assisted drag test mechanism also includes a bearing housing, which is located on one side of the fixed torque measuring instrument and is used to connect the first motor and / or the second motor.

[0021] Optionally, the motor-assisted drag test mechanism further includes a first environmental chamber and a second environmental chamber; the first environmental chamber is connected to the first support plate, and the first motor is covered by the first support plate; the first environmental chamber and the first support plate enclose an environmental space for the first motor.

[0022] The second environmental chamber is connected to the second support plate, and the second motor is housed in conjunction with the second support plate; the second environmental chamber and the second support plate enclose an environmental space for the second motor.

[0023] The temperature of the ambient space of the second motor is isolated from the temperature of the ambient space of the first motor.

[0024] Optionally, the motor-coupled test mechanism further includes a splined flange, a splined shaft, and a sealing plate;

[0025] The spline flange is fixed to the first support plate, and the spline shaft is connected to the output end of the first motor through the spline flange;

[0026] The splined shaft is sleeved on the splined flange;

[0027] The sealing plate is fitted onto the spline flange. The sealing plate is provided with an air inlet pipe. The air inlet end of the air inlet pipe is used to allow compressed air to enter, and the air outlet end faces the outside of the spline flange, thus isolating the ambient temperature of the second motor from the ambient temperature of the first motor.

[0028] A testing device, comprising the aforementioned motor-driven test mechanism.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] This invention provides a motor-to-motor drag test mechanism and testing equipment. A support frame is mounted on a test bench base. The support frame includes a first support plate and a second support plate, which are arranged opposite to each other and are an integrated structure. A receiving groove is formed between the first and second support plates. A fixed torque measuring instrument is housed in the receiving groove and fixed to the support frame. A first motor is fixed to the first support plate and connected to one end of the fixed torque measuring instrument. A second motor is fixed to the second support plate and connected to the other end of the fixed torque measuring instrument. The second motor is arranged opposite to the first motor, and the axis of the second motor is collinear with the axis of the first motor. In this case, both the second motor and the first motor are mounted on the support frame and respectively on the second and first support plates. Based on the relative arrangement of the first and second support plates and their integrated structure, the stability between the first and second support plates is ensured, the screw fixing between the first and second support plates is avoided, and the coaxial accuracy of the motor-to-motor drag test mechanism is improved. At the same time, the integrated support frame has a higher natural frequency to avoid resonance. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0033] Figure 1 A schematic diagram of a motor-driven test mechanism according to an embodiment of this application is shown.

[0034] Figure 2 A schematic diagram of the internal structure of a motor-to-tow test mechanism according to an embodiment of this application is shown.

[0035] Figure 3 A schematic diagram of the spline flange connection of a motor-to-drag test mechanism according to an embodiment of this application is shown.

[0036] Figure Labels

[0037] 100. Motor-assisted drag test mechanism;

[0038] 10. Test bench base; 11. Shock-absorbing springs;

[0039] 20. Support frame; 20a. Receiving groove; 21. First support plate; 211. First mounting plate; 211b. Second connection position; 212. First connecting plate; 212a. First connection position; 22. Second support plate; 23. Base plate;

[0040] 30. Fixed torque measuring instrument;

[0041] 40. First motor;

[0042] 50. Second motor;

[0043] 60. Bearing housing;

[0044] 70. First environmental chamber; 71. First T-shaped channel plate;

[0045] 80. Second environmental chamber; 81. Second T-shaped channel plate;

[0046] 90. Splined flange; 91. Splined shaft; 92. Sealing plate; 921. Inlet pipe. Detailed Implementation

[0047] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0048] Please refer to the attached document. Figures 1-3 This application provides a motor-to-motor drag test mechanism 100. The motor-to-motor drag test mechanism 100 is applied to a testing equipment and is used to test various performance indicators and fatigue durability of a motor in a motor-to-motor drag test. The motor-to-motor drag test mechanism 100 includes a test bench base 10, a support frame 20, a fixed torque measuring instrument 30, a first motor 40, and a second motor 50. The support frame 20, the fixed torque measuring instrument 30, the first motor 40, and the second motor 50 are all disposed on the upper side of the test bench base 10.

[0049] In this embodiment of the application, the test bench base 10 serves as a supporting component of the motor-to-drag test mechanism 100. The test bench base 10 is used to support the support frame 20, the fixed torque measuring instrument 30, the first motor 40, and the second motor 50.

[0050] The test bench base 10 is connected to a damping spring 11, which can be placed directly on the cement floor. It has good damping characteristics and can effectively reduce vibration.

[0051] In this embodiment, the support frame 20 is disposed on the upper side of the test bench base 10. The support frame 20 is installed on the test bench base 10. The support frame 20 includes a first support plate 21 and a second support plate 22. The first support plate 21 and the second support plate 22 are arranged opposite to each other and are an integrated structure. This ensures the stability between the first support plate 21 and the second support plate 22 and avoids screw fixing between the first support plate 21 and the second support plate 22. A receiving groove 20a is formed between the first support plate 21 and the second support plate 22.

[0052] In this embodiment, the fixed torque measuring instrument 30 is disposed inside the support frame 20. The fixed torque measuring instrument 30 is accommodated in the receiving groove 20a and fixed to the support frame 20, so that the fixed torque measuring instrument 30 is fixed to the support frame 20 through the receiving groove 20a.

[0053] In this embodiment, the first motor 40 is fixed to the first support plate 21 and connected to one end of the fixed torque measuring instrument 30; the second motor 50 is fixed to the second support plate 22 and connected to the other end of the fixed torque measuring instrument 30; the second motor 50 is arranged opposite to the first motor 40, and the axis of the second motor 50 and the axis of the first motor 40 are on the same straight line.

[0054] At this time, the second motor 50 and the first motor 40 are both mounted on the support frame 20 and respectively on the second support plate 22 and the first support plate 21. Based on the relative arrangement of the first support plate 21 and the second support plate 22 and the integrated structure, the stability between the first support plate 21 and the second support plate 22 is ensured, the screw fixing between the first support plate 21 and the second support plate 22 is avoided, and the coaxial accuracy of the motor to the drag test mechanism 100 is improved. At the same time, the integrated support frame 20 has a higher natural frequency to avoid resonance.

[0055] The support frame 20 also includes a base plate 23; the base plate 23 is located between the first support plate 21 and the second support plate 22, and is integrally connected to the first support plate 21 and the second support plate 22, ensuring the stability between the base plate 23 and the first support plate 21 and the second support plate 22, and avoiding screw fixing between the base plate 23 and the first support plate 21 and the second support plate 22; the base plate 23 is fixed to the test bench base 10; the test bench base 10 is an integral structure, ensuring the stability between the base plate 23 and the test bench base 10. Optionally, the support frame 20 is a casting or an integrally formed part.

[0056] A first mounting plate 211 and a first connecting plate 212 are provided between the first motor 40 and the first support plate 21. The first mounting plate 211 and the first connecting plate 212 are both arranged in a vertical direction. The first connecting plate 212 is connected to the first support plate 21. The first mounting plate 211 is located between the first connecting plate 212 and the first motor 40. The first motor 40 is mounted on the first connecting plate 212 through the first mounting plate 211 so that the fixed end of the first motor 40 is fixed to the first support plate 21. The output end of the first motor 40 passes through the first mounting plate 211, the first connecting plate 212, and the first support plate 21, and is connected to one end of the fixed torque measuring instrument 30 so that the first motor 40 can be connected to the left side of the fixed torque measuring instrument 30.

[0057] The first connecting plate 212 and the first support plate 21 have multiple first connection positions 212a, which are arranged in a square. The first connecting plate 212 is connected to the first support plate 21 through the multiple first connection positions 212a. The connection stability between the first connecting plate 212 and the first support plate 21 is increased by arranging multiple first connection positions 212a.

[0058] The first mounting plate 211 is a circular piece, and a first mounting hole is provided at the center of the first mounting plate 211. The first mounting hole is used for mounting the first motor 40. The axis of the first mounting hole is on the same straight line as the axis of the output end of the first motor 40, so that the first mounting plate 211 can pass through the first mounting hole to allow the output end of the first motor 40 to pass through, thereby facilitating the docking of the output end of the first motor 40 with the fixed torque measuring instrument 30.

[0059] The first mounting plate 211 and the first connecting plate 212 have multiple second connection positions 211b arranged in a circle. The first mounting plate 211 is connected to the first connecting plate 212 through the multiple second connection positions 211b. The connection stability between the first mounting plate 211 and the first connecting plate 212 is increased by arranging multiple second connection positions 211b.

[0060] In addition, a second mounting plate 221 and a second connecting plate 222 are provided between the second motor 50 and the second support plate 22; both the second mounting plate 221 and the second connecting plate 222 are arranged in a vertical direction, and the second connecting plate 222 is connected to the second support plate 22; the second mounting plate 221 is located between the second connecting plate 222 and the second motor 50, and the second motor 50 is mounted on the second connecting plate 222 through the second mounting plate 221 so that the fixed end of the second motor 50 is fixed to the second support plate 22; the output end of the second motor 50 passes through the second mounting plate 221, the second connecting plate 222, and the second support plate 22, and is connected to the two ends of the fixed torque measuring instrument 30 so that the second motor 50 can be connected to the right side of the fixed torque measuring instrument 30.

[0061] The fixed torque measuring instrument 30 is used to measure the rotational speed of the first motor 40 and the second motor 50; the motor drag test mechanism 100 also includes a bearing seat 60, which is disposed on one side of the fixed torque measuring instrument 30 and is used to dock the first motor 40 and / or the second motor 50, so that the fixed torque measuring instrument 30 can dock with the first motor 40 and / or the second motor 50 through the bearing seat 60, thereby improving the smoothness of rotation between the fixed torque measuring instrument 30 and the first motor 40 and / or the second motor 50.

[0062] The motor-assisted drag test mechanism 100 also includes a first environmental chamber 70 and a second environmental chamber 80. The first environmental chamber 70 and the second environmental chamber 80 are arranged opposite to each other. The first environmental chamber 70 is connected to the first support plate 21 so that the first environmental chamber 70 is fixed to the first support plate 21 and the first motor 40 is covered by the first support plate 21. The first environmental chamber 70 and the first support plate 21 enclose an environmental space for the first motor 40 so that the first motor 40 is located in the first environmental chamber 70. This facilitates the protection of the first motor 40 by the first environmental chamber 70, preventing foreign objects from touching the first motor 40 during the test and avoiding affecting the test results of the first motor 40. At the same time, the first environmental chamber 70 can maintain the temperature so as to facilitate temperature control of the first motor 40.

[0063] At this time, the first environmental chamber 70 contains a first T-shaped groove plate 71, which is installed on the test bench base 10 and supports the first motor 40 through a support member.

[0064] The second environmental chamber 80 is connected to the second support plate 22 so that the second environmental chamber 80 is fixed to the second support plate 22, and the second motor 50 is covered by the second support plate 22. The second environmental chamber 80 and the second support plate 22 enclose an environmental space for the second motor 50, so that the second motor 50 is located in the second environmental chamber 80, thereby facilitating the protection of the second motor 50 by the second environmental chamber 80, preventing foreign objects from touching the second motor 50 during the test, and avoiding affecting the test results of the second motor 50. The temperature of the environmental space of the second motor 50 is isolated from the temperature of the environmental space of the first motor 40, so that the test results of the second motor 50 and the test results of the first motor 40 do not affect each other.

[0065] At this time, the second environmental chamber 80 contains a second T-shaped groove plate 81, which is installed on the test bench base 10 and supports the second motor 50 through a support member.

[0066] The motor-assisted drag test mechanism 100 also includes a spline flange 90, a spline shaft 91, and a sealing plate 92; the spline flange 90 is fixed to the first support plate 21, and the spline shaft 91 is connected to the output end of the first motor 40 through the spline flange 90; so that the spline shaft 91 can be connected to the output end of the first motor 40, and the output end of the first motor 40 drives the spline shaft 91 to rotate. The spline shaft 91 is sleeved on the spline flange 90 to facilitate adjustment of the position of the spline shaft 91 relative to the spline flange 90; the sealing plate 92 is sleeved on the spline flange 90.

[0067] The sealing plate 92 is provided with an air inlet pipe 921. The air inlet end of the air inlet pipe 921 is used to allow compressed air to enter, and the air outlet end faces the outside of the spline flange 90, so that the compressed air can flow through the air inlet pipe 921 to the outside of the spline flange 90, and isolate the temperature of the ambient space of the second motor 50 from the ambient temperature of the first motor 40, so that the test results of the second motor 50 and the test results of the first motor 40 do not affect each other.

[0068] In another embodiment, a testing device includes a motor-to-motor test mechanism 100, which is part of the testing device used to test various performance indicators and fatigue durability of the motor.

[0069] Compared with the prior art, the beneficial effects of the present invention are:

[0070] This invention provides a motor-assisted drag test mechanism 100 and a testing device. A support frame 20 is mounted on a test bench base 10. The support frame 20 includes a first support plate 21 and a second support plate 22, which are arranged opposite to each other and are an integrated structure. A receiving groove 20a is formed between the first support plate 21 and the second support plate 22. A fixed torque measuring instrument 30 is received in the receiving groove 20a and fixed to the support frame 20. A first motor 40 is fixed to the first support plate 21 and connected to one end of the fixed torque measuring instrument 30. A second motor 50 is fixed to the second support plate 22 and connected to the other end of the fixed torque measuring instrument 30. The second motor 50 is arranged opposite to the first motor 40, and the axis of the second motor 50 is in the same straight line as the axis of the first motor 40. At this time, both the second motor 50 and the first motor 40 are mounted on the support frame 20 and respectively mounted on the second support plate 22 and the first support plate 21. Based on the relative arrangement of the first support plate 21 and the second support plate 22 and the integrated structure, the stability between the first support plate 21 and the second support plate 22 is ensured, the screw fixing between the first support plate 21 and the second support plate 22 is avoided, and the coaxial accuracy of the motor to the drag test mechanism 100 is improved. At the same time, the integrated support frame 20 has a higher natural frequency to avoid resonance.

[0071] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0072] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0073] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A motor-assisted drag test mechanism, characterized in that, Used in testing equipment; The motor-assisted drag test mechanism includes: Test bench base; A support frame is installed on the base of the test bench. The support frame includes a first support plate and a second support plate, which are arranged opposite to each other and are an integral structure. A receiving groove is formed between the first support plate and the second support plate. A fixed torque measuring instrument is housed in the receiving groove and fixed to the support frame; The first motor is fixed to the first support plate and connected to one end of the fixed torque measuring instrument; The second motor is fixed to the second support plate and connected to the other end of the fixed torque measuring instrument; the second motor is arranged opposite to the first motor, and the axis of the second motor is in the same straight line as the axis of the first motor; The motor-assisted drag test mechanism also includes a first environmental chamber and a second environmental chamber; the first environmental chamber is connected to a first support plate, and the first motor is covered by the first support plate; the first environmental chamber and the first support plate enclose an environmental space for the first motor. The second environmental chamber is connected to the second support plate, and the second motor is housed in conjunction with the second support plate; the second environmental chamber and the second support plate enclose an environmental space for the second motor. The temperature of the ambient space of the second motor is isolated from the temperature of the ambient space of the first motor; The motor-assisted drag test mechanism also includes a spline flange, a spline shaft, and a sealing plate; The spline flange is fixed to the first support plate, and the spline shaft is connected to the output end of the first motor through the spline flange; The splined shaft is sleeved on the splined flange; The sealing plate is fitted onto the spline flange. The sealing plate is provided with an air inlet pipe. The air inlet end of the air inlet pipe is used to allow compressed air to enter, and the air outlet end faces the outside of the spline flange, thus isolating the ambient temperature of the second motor from the ambient temperature of the first motor.

2. The motor-assisted drag test mechanism according to claim 1, characterized in that, The support frame also includes a base plate; the base plate is located between the first support plate and the second support plate, and is integrally connected to the first support plate and the second support plate; the base plate is fixed to the test bench base; the test bench base is an integral structure.

3. The motor-assisted drag test mechanism according to claim 2, characterized in that, The support frame is a casting or a one-piece molded part.

4. The motor-assisted drag test mechanism according to claim 3, characterized in that, A first mounting plate and a first connecting plate are provided between the first motor and the first support plate; the first connecting plate is connected to the first support plate; the first mounting plate is located between the first connecting plate and the first motor, and the first motor is mounted on the first connecting plate through the first mounting plate. The output end of the first motor passes through the first mounting plate, the first connecting plate, and the first support plate, and is connected to one end of the fixed torque measuring instrument.

5. The motor-assisted drag test mechanism according to claim 4, characterized in that, The first connecting plate and the first supporting plate have multiple first connection positions, which are arranged in a square shape.

6. The motor-assisted drag test mechanism according to claim 4, characterized in that, The first mounting plate is a circular piece, and a first mounting hole is provided at the center of the first mounting plate for mounting the first motor; the axis of the first mounting hole is collinear with the axis of the output end of the first motor. The first mounting plate and the first connecting plate have multiple second connection positions, which are arranged in a circular pattern.

7. The motor-assisted drag test mechanism according to claim 6, characterized in that, The fixed torque measuring instrument is used to measure the rotational speed of the first motor and the second motor; The motor-assisted drag test mechanism also includes a bearing housing, which is located on one side of the fixed torque measuring instrument and is used to connect the first motor and / or the second motor.

8. A testing device, characterized in that, Includes the motor-driven test mechanism as described in any one of claims 1 to 7.

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