Magnetic powder motor dynamometer

Abstract

The utility model relates to a magnetic powder motor dynamometer, which relates to the technical field of mechanical equipment, and comprises a bottom plate, and a motor, a gear box and a magnetic powder brake which are sequentially arranged on the bottom plate, an input shaft of the motor is connected with an input shaft of the gear box through a first power torque sensor; and the output shaft of the gear box is connected with the magnetic powder brake through a second power torque sensor. The motor parameter testing device has the effect of testing the parameters of the motor under different working conditions.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical equipment, and in particular to a magnetic powder motor dynamometer. Background Art

[0002] The magnetic powder dynamometer is a material fatigue and wear performance testing device. It uses magnetic powder to detect cracks and defects in materials, and simulates the stress conditions of the material during use by applying stress to evaluate the performance of the material.

[0003] In the related art, in order to test the input and output torque of a motor, a motor, a power sensor and a magnetic powder dynamometer are provided and connected to each other via a coupling.

[0004] Regarding the above-mentioned related technologies, since the motor needs to meet the requirements under different working conditions, for example, in situations where low speed and high torque are required, such as heavy machinery equipment such as cranes and excavators, it is necessary to test whether the torque of the motor meets the requirements. However, in the existing technology, it is impossible to test the torque, speed and other parameters of the motor under different working conditions. Therefore, there is an urgent need for a device that can test the parameters of the motor under different working conditions. Utility Model Content

[0005] In order to test the parameters of a motor under different working conditions, the present application provides a powder motor dynamometer.

[0006] The present application provides a powder motor dynamometer, which adopts the following technical solution:

[0007] A magnetic powder motor dynamometer, comprising a base plate, and a motor, a gear box and a magnetic powder brake sequentially arranged on the base plate;

[0008] The input shaft of the motor and the input shaft of the gear box are connected via a first power torque sensor;

[0009] The output shaft of the gear box and the magnetic powder brake are connected via a second power torque sensor.

[0010] By adopting the above technical solution, a gearbox is set up, and the gearbox is connected between the first power torque sensor and the second power torque sensor. Different gear combinations inside the gearbox can achieve different transmission ratios, and the high-speed rotational motion of the motor can be converted into the required low-speed or high-speed rotational motion, thereby changing the output speed and torque to meet the needs under different working conditions. The speed and torque of the motor input and output are further tested to determine whether they meet the design standards.

[0011] Optionally, it also includes multiple couplings, the motor input shaft and the first power torque sensor are connected through the coupling, the gearbox output shaft and the second power torque sensor are connected through the coupling, and the second power torque sensor and the magnetic powder brake are connected through the coupling.

[0012] By adopting the above technical solution, in order to connect the motor, the gear box and the magnetic powder brake, a coupling is set to achieve it.

[0013] Optionally, an internal gear is coaxially sleeved on the output end of the gear box, an external gear is provided between the gear box and the coupling, and the external gear meshes with the internal gear.

[0014] By adopting the above technical solution, by setting the internal gear and the external gear, the power at the input end of the motor can be transmitted, and by setting the external gear and the internal gear of different sizes, different gear ratios can be achieved, thereby changing the input and output speed relationship, and the output speed of the gear box can be adjusted according to the actual working conditions.

[0015] Optionally, a temperature sensor is also included, and the temperature sensor is magnetically connected to the gear box input shaft.

[0016] By adopting the above technical solution, in order to test the temperature of the motor, a temperature sensor is set up. The temperature sensor can be adsorbed on the input shaft of the gear box by magnetic attraction to test whether the temperature of the motor meets the design standard.

[0017] Optionally, the gearbox is mounted on the base plate via a mounting base, the mounting base is detachably connected to the base plate, a first mounting hole is provided on the mounting base for the output end of the gearbox to pass through, and the gearbox is detachably connected to the mounting base.

[0018] By adopting the above technical solution, in order to support the gear box, a mounting seat is provided, the mounting seat is detachably connected to the gear box, and in order to facilitate installation and disassembly by personnel, the mounting seat can also be detachably connected to the base plate.

[0019] Optionally, the mounting seat is slidably connected to the base plate along a first direction.

[0020] By adopting the above technical solution, in order to facilitate personnel to install and disassemble the gear box, the mounting seat can slide along the first direction to generate an installation gap between the mounting seat and the structure connected thereto, which is convenient for personnel to install.

[0021] Optionally, a sliding assembly is also included, which includes a sliding rail and a first slider, the sliding rail is parallel to the first direction, the first slider is provided with a first sliding groove that can slide on the sliding rail, and the first slider is directly or indirectly connected to the mounting seat on a side away from the sliding rail.

[0022] By adopting the above technical solution, in order to drive the mounting seat to slide along the first direction, a slide rail and a first slider are provided, and the first slider slides on the slide rail to drive the mounting seat to slide along the first direction.

[0023] Optionally, the mounting seat is connected to the base plate in a sliding manner along a second direction, the second direction is perpendicular to the first direction, the sliding assembly also includes a second slider, a second sliding groove is provided on the side of the second slider away from the first slider, the first slider is located in the second sliding groove, and the mounting seat is directly or indirectly connected to the second slider.

[0024] By adopting the above technical solution, since the motor and magnetic powder brake have different machine sizes, the connected coupling and gearbox also have corresponding size differences, and it is necessary to replace the mounting base with first mounting holes of different sizes. In order to make the mounting base adapt to different installation positions, the mounting base can also slide along the second direction to increase the movement range of the mounting base and improve its applicability.

[0025] Optionally, the mounting seat is slidably connected to the base plate along a third direction, the third direction being perpendicular to both the first direction and the second direction, a connecting column is fixedly connected to a side of the second slider away from the first slider, the connecting column is parallel to the third direction, a second mounting hole for inserting the connecting column is provided along the third direction on a side of the mounting seat close to the second slider, the mounting seat slides along the column length direction of the connecting column, and the mounting seat and the connecting column are fixed by a first locking member.

[0026] By adopting the above technical solution, due to the different sizes of the motor and the magnetic powder brake, the distances between the coupling and the gear box and the base plate are also different. For this reason, the mounting seat is slidably connected to the base plate along the third direction, and the position of the mounting seat in the third direction can be adjusted to adapt to the installation position of the gear box. By setting a sliding component, the position of the mounting seat in different directions can be adjusted according to the actual size and installation position of the gear box by replacing the mounting seat with different first mounting hole diameters to improve the applicability of the mounting seat.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The present application sets a gearbox so that the gearbox transmits the power at the input end of the motor. By adjusting different gear sets inside the gearbox, different transmission ratios can be achieved, thereby changing the output speed and torque to meet the needs under different working conditions. By setting a first power torque sensor and a second power torque sensor, the torque of the motor input and output can be tested to determine whether the motor meets the design requirements;

[0029] 2. This application provides a base to facilitate the support of the gear box, and the base slides in different directions to support gear boxes of different specifications and sizes, and the position of the mounting seat is adjusted accordingly according to the installation position of the gear box and other components. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of a magnetic powder motor dynamometer of the present application;

[0031] Figure 2 It is a structural schematic diagram of the gearbox of the present application;

[0032] Figure 3 It is a structural schematic diagram of the sliding assembly of the present application.

[0033] Explanation of the accompanying drawings: 1. Base plate; 11. First supporting seat; 12. First connecting seat; 13. Second supporting seat; 14. Mounting seat; 141. First mounting hole; 142. Second mounting hole; 2. Motor; 21. Coupling; 3. Gear box; 31. External gear; 32. Internal gear; 4. First power torque sensor; 5. Second power torque sensor; 6. Magnetic powder brake; 7. Temperature sensor; 8. Sliding assembly; 81. Slide rail; 82. First slider; 821. First slide groove; 822. Sliding guide; 83. Second slider; 831. Second slide groove; 84. Connecting column; 85. First locking member. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-3 This application is described in further detail.

[0035] The embodiment of the present application discloses a magnetic powder motor dynamometer. For the convenience of description, the present application introduces directional words such as a first direction, a second direction and a third direction to form a three-dimensional reference direction. The directional words used, such as "a first direction, a second direction and a third direction", can be specifically shown with reference to the figure, where X represents the first direction X, Y represents the second direction Y, and Z represents the third direction Z. The first direction X, the second direction Y and the third direction Z are perpendicular to each other.

[0036] Reference Figure 1The magnetic powder motor dynamometer includes a base plate 1 and a motor 2, a gear box 3 and a magnetic powder brake 6 which are sequentially arranged on the base plate 1; the input shaft of the motor 2 and the input shaft of the gear box 3 are connected via a first power torque sensor 4; the output shaft of the gear box 3 and the magnetic powder brake 6 are connected via a second power torque sensor 5; when in use, the first power torque sensor 4 monitors and measures the torque at the input end of the motor 2, and the second power torque sensor 5 monitors and measures the torque at the output end of the motor 2. By setting the gear box 3, the gear box 3 can transmit the power of the motor 2 to the magnetic powder brake 6, and by adjusting the reduction ratio of the gear box 3, the performance of the motor 2 at different speeds and torques can be controlled, thereby measuring the input and output torques of the motor 2 to determine whether they can meet the design standards.

[0037] Reference Figure 1 In order to better connect the various components, the magnetic powder motor dynamometer also includes multiple couplings 21. A coupling 21 is provided between the input shaft of the motor 2 and the first power torque sensor 4, a coupling 21 is also provided between the first power torque sensor 4 and the gear box 3, a coupling 21 is provided between the output shaft of the gear box 3 and the second power torque sensor 5, and a coupling 21 is also provided between the second dynamic torque sensor and the magnetic powder brake 6.

[0038] Reference Figure 1 and Figure 2 In order to better transmit the power of the motor 2, the output end of the gear box 3 is coaxially sleeved with an external gear 31, and an external gear 31 is arranged between the output end of the gear box 3 and the coupling 21. The external gear 31 is meshed with the internal gear 32. By setting the external gear 31 and the internal gear 32, the power of the output end of the motor 2 can be transmitted to the second power torque sensor 5, and the second power torque sensor 5 measures the power and torque of the output end of the motor 2.

[0039] Reference Figure 1 In order to test the temperature of the motor 2 input, the magnetic powder motor dynamometer also includes a temperature sensor 7, which is magnetically connected to the input shaft of the gear box 3 so that the temperature of the motor 2 input is measured by the temperature sensor 7. In this embodiment, the temperature sensor 7 is a prior art in the industry, and the specific structure will not be described in detail.

[0040] Reference Figure 1 In order to support the motor 2 and the first dynamic torque sensor 4, a first support seat 11 is provided on the base plate 1, the motor 2 is located on the first support seat 11, and the first dynamic torque sensor 4 is installed on the first support seat 11 through the first connecting seat 12. In order to support the second dynamic torque sensor, a second support seat 13 is provided on the base plate 1, so that the second dynamic torque sensor 5 is supported by the second support seat 13.

[0041] Reference Figure 1 In order to support the gear box 3, a mounting seat 14 is provided on the base plate 1. The mounting seat 14 is detachably connected to the base plate 1. A first mounting hole 141 is opened on the mounting seat 14 for the output shaft of the gear box 3 to pass through. The gear box 3 is mounted on the mounting seat 14 by bolts. In order to facilitate the installation of the gear box 3, the mounting seat 14 is slidably connected to the base plate 1 along the first direction, and the mounting seat 14 is moved to have an installation gap with the coupling 21, so that personnel can install and remove the gear box 3.

[0042] Reference Figure 3 In order to make the mounting seat 14 slide along the first direction, the magnetic powder motor dynamometer also includes a sliding assembly 8, the sliding assembly 8 includes a slide rail 81 and a first slider 82, the slide rail 81 is parallel to the first direction, the first slider 82 is detachably connected to the bottom of the mounting seat 14, a first slide groove 821 is provided on the side of the first slider 82 away from the mounting seat 14, the slide rail 81 is located in the first slide groove 821, the first slider 82 can slide along the length direction of the slide rail 81 to drive the mounting seat 14 to slide along the first direction, and the first slider 82 is fixedly connected to the slide rail 81 by screws; in some embodiments, the slide rail 81 can be provided with one or two. In this embodiment, in order to improve the stability of the mounting seat 14, the slide rail 81 is provided with two, and the first slide groove 821 on the first slider 82 is provided with two.

[0043] Reference Figure 3 Since the gearbox 3 has different sizes, in order to make the mounting seat 14 adapt to the installation positions of gearboxes 3 of different sizes, the mounting seat 14 is slidably connected to the base plate 1 along the second direction, and the second direction is perpendicular to the first direction. Specifically, the sliding assembly 8 also includes a second slider 83, and the second slider 83 is arranged between the first slider 82 and the mounting seat 14. A second slide groove 831 is opened along the second direction on the side of the second slider 83 close to the first slider 82, and a sliding guide 822 is integrally convexly provided on the side of the first slider 82 close to the first slider 82. The sliding guide 822 is located in the second slide groove 831, and the second slider 83 slides along the sliding guide 822 of the first slider 82. The second slider 83 is fixedly connected to the first slider 82 by screws, and the mounting seat 14 is connected to the second slider 83, so that the position of the mounting seat 14 in the second direction can be adjusted to further adapt to different installation positions.

[0044] Reference Figure 3 The motor 2 and the magnetic powder brake 6 have different sizes, and the corresponding coupling 21 has different sizes, which further leads to a difference in the distance between the gear box 3 and the base plate 1. For this reason, the mounting seat 14 is slidably connected to the base plate 1 along a third direction, and the third direction is perpendicular to both the first direction and the second direction.

[0045] Reference Figure 3In some embodiments, the mounting seat 14 can slide along the third direction, or the slide rail 81 can slide along the third direction, as long as the mounting seat 14 can eventually slide along the third direction. In this embodiment, the mounting seat 14 slides along the third direction, and the second sliding block 83 is fixedly connected to a connecting column 84 on the side away from the first sliding block 82. The connecting column 84 is arranged parallel to the third direction. A second mounting hole 143 for accommodating the connecting column 84 is provided at the bottom of the mounting seat 14. The connecting column 84 is plugged into the second mounting hole 143, that is, the mounting seat 14 can slide along the column length direction of the connecting column 84. After adjusting the position of the mounting seat 14 in the third direction, the mounting seat 14 is fixedly connected to the fixing column through the first locking member 142. Specifically, the first locking member 142 passes through the mounting seat 14 and is pressed against the fixing column, and the first locking member 142 is threadedly connected to the mounting seat 14.

[0046] The implementation principle of a magnetic powder motor dynamometer in the embodiment of the present application is as follows: the motor 2, the first power torque sensor 4, the gear box 3, the second power torque sensor 5 and the magnetic powder brake 6 are connected through the coupling 21. By setting the gear box 3, the power of the motor 2 can be transmitted to the second power torque sensor 5, and the torque input and output of the motor 2 can be measured to determine whether it can meet the design requirements. In addition, through the reduction ratio design of the gear box 3, the speed and torque of the motor 2 can be accurately controlled;

[0047] A mounting base 14 is provided, and personnel slide the mounting base 14 along the first direction to facilitate installation of the gearbox 3. Since the specifications of the gearbox 3 vary, in order to be able to install gearboxes 3 of different specifications, the mounting base 14 can slide along the second direction and the third direction, and further adjust the first mounting hole 141 on the mounting base 14 to a position coaxial with the output shaft of the second power torque sensor 5.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A magnetic powder motor dynamometer, characterized in that: It comprises a base plate (1), and a motor (2), a gear box (3) and a magnetic powder brake (6) which are sequentially arranged on the base plate (1); The input shaft of the motor (2) and the input shaft of the gear box (3) are connected via a first power torque sensor (4); The output shaft of the gear box (3) and the magnetic powder brake (6) are connected via a second power torque sensor (5).

2. The magnetic powder motor dynamometer according to claim 1, characterized in that: The invention also comprises a plurality of couplings (21), wherein the input shaft of the motor (2) is connected to the first power torque sensor (4) via the couplings (21), the output shaft of the gear box (3) is connected to the second power torque sensor (5) via the couplings (21), and the second power torque sensor (5) is connected to the magnetic powder brake (6) via the couplings (21).

3. A magnetic powder motor dynamometer according to claim 2, characterized in that: An internal gear (32) is coaxially sleeved at the output end of the gear box (3), an external gear (31) is provided between the gear box (3) and the coupling (21), and the external gear (31) is meshed with the internal gear (32).

4. The magnetic powder motor dynamometer according to claim 1, characterized in that: It also includes a temperature sensor (7), and the temperature sensor (7) is magnetically connected to the input shaft of the gear box (3).

5. The magnetic powder motor dynamometer according to claim 1, characterized in that: The gear box (3) is mounted on the base plate (1) via a mounting seat (14); the mounting seat (14) is detachably connected to the base plate (1); a first mounting hole (141) is provided on the mounting seat (14) for the output end of the gear box (3) to pass through; the gear box (3) and the mounting seat (14) are detachably connected.

6. The magnetic powder motor dynamometer according to claim 5, characterized in that: The mounting seat (14) is slidably connected to the base plate (1) along a first direction.

7. The magnetic powder motor dynamometer according to claim 6, characterized in that: The invention also comprises a sliding assembly (8), wherein the sliding assembly (8) comprises a sliding rail (81) and a first sliding block (82), wherein the sliding rail (81) is parallel to the first direction, and the first sliding block (82) is provided with a first sliding groove (821) capable of sliding on the sliding rail (81), and the side of the first sliding block (82) away from the sliding rail (81) is directly or indirectly connected to the mounting seat (14).

8. The magnetic powder motor dynamometer according to claim 7, characterized in that: The mounting seat (14) is slidably connected to the base plate (1) along a second direction, the second direction being perpendicular to the first direction, the sliding assembly (8) further comprising a second sliding block (83), a second sliding groove (831) being provided on a side of the second sliding block (83) away from the first sliding block (82), the first sliding block (82) being located in the second sliding groove (831), and the mounting seat (14) being directly or indirectly connected to the second sliding block (83).

9. The magnetic powder motor dynamometer according to claim 8, characterized in that: The mounting seat (14) is slidably connected to the base plate (1) along a third direction, the third direction being perpendicular to both the first direction and the second direction, a connecting column (84) is fixedly connected to a side of the second slider (83) away from the first slider (82), the connecting column (84) is parallel to the third direction, a second mounting hole (143) for inserting the connecting column (84) is provided along the third direction on a side of the mounting seat (14) close to the second slider (83), the mounting seat (14) slides along the column length direction of the connecting column (84), and the mounting seat (14) and the connecting column (84) are fixed by a first locking member (142).

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