A low-speed motor load test device

Abstract

This utility model discloses a low-speed motor load testing device, comprising: a base plate, a support plate and a mounting base fixed to the base plate, a transmission shaft rotatably coupled to the support plate, a coupling connected to the right end of the transmission shaft, a load arm fixed to the left end of the transmission shaft, and a load plate detachably connected to the other end of the load arm. The mounting base is provided with a motor shaft through hole corresponding to the left and right ends of the coupling and for the motor shaft of the power supply to pass through, as well as multiple rows or rows of first mounting holes radially distributed around the circumference for fixing the motor. Using this technical solution, different models of motors can be mounted on the mounting base, thus satisfying the performance testing of multiple motor models without requiring companies to purchase multiple testing devices, significantly reducing testing costs.

Description

Technical Field

[0001] This utility model relates to the field of motor-related technology, and in particular to a low-speed motor load testing device. Background Technology

[0002] The significance of motor performance testing lies in its ability to help us promptly identify various problems that may arise during motor use, such as insulation aging, bearing wear, and winding short circuits. These issues can all affect motor performance. Through performance testing, we can quantitatively evaluate various performance indicators of the motor, thereby understanding its operating status and potential problems. Motor performance testing generally requires motor load testing equipment. Existing testing equipment is typically only suitable for testing one type of motor. Testing different motor models requires multiple testing devices, necessitating the purchase of multiple testing equipment by the company, thus increasing testing costs. Utility Model Content

[0003] In order to overcome the existing technical defects, the purpose of this utility model is to provide a low-speed motor load testing device to solve the above-mentioned technical problems.

[0004] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0005] According to one aspect of this utility model, a low-speed motor load testing device is designed, comprising: a base plate, a support plate and a mounting base fixed to the base plate, a transmission shaft rotatably engaged with the support plate, a coupling connected to the right end of the transmission shaft, a load arm fixed to the left end of the transmission shaft, and a load plate detachably connected to the other end of the load arm. The mounting base is provided with a motor shaft through hole corresponding to the left and right ends of the coupling and used for the motor shaft of the power supply motor to pass through, and multiple rows or more first mounting holes radially distributed around the circumference for fixing the motor.

[0006] Using the above technical solution, when the motor needs to be tested for performance, it is placed on the right side of the mounting base, so that the motor shaft passes through the motor shaft through hole on the mounting base and is inserted into the coupling, and the through hole on the motor corresponds to the first mounting hole. Then, one end of the bolt passes through the first mounting hole and the through hole on the motor and is threadedly locked to the nut to fix the motor on the mounting base. When the motor starts, the motor shaft drives the transmission shaft to rotate through the coupling, which in turn drives the load arm and load plate to rotate, thus realizing the testing of the motor performance. By using multiple rows or multiple first mounting holes for fixing the motor to be radially distributed on the mounting base, different models of motors can be fixedly installed on the mounting base, thus meeting the needs of performance testing of multiple models of motors. This eliminates the need for enterprises to purchase multiple testing devices and can greatly reduce the enterprise's testing costs.

[0007] To better address the aforementioned technical deficiencies, this utility model also offers a superior technical solution:

[0008] In some embodiments, the mounting base is laterally adjustable and fixed to the base plate. This allows for lateral adjustment of the mounting base's fixed position to better meet the installation requirements of different motor models.

[0009] In some embodiments, the mounting base is L-shaped or L-shaped, with multiple through holes at its lower end, and a horizontal strip-shaped through hole on the base plate. The lower end of the locking bolt passes through the through hole and the strip-shaped through hole and engages with the locking nut in a threaded locking fit.

[0010] In some embodiments, a bearing housing is fixedly connected to the mounting hole on the support plate, and the drive shaft is connected to the inner bushing of the bearing in the bearing housing.

[0011] In some embodiments, the load arm is provided with a plurality of second mounting holes along its length for adjusting the fixed position of the load disk. This allows the mounting position of the load disk to be adjusted according to testing needs, satisfying testing requirements in various situations.

[0012] In some embodiments, the load arm is fixedly connected by a connecting screw passing through a second mounting hole thereon and locking into a threaded hole on the load disk.

[0013] In some embodiments, the diameters of the plurality of first mounting holes in each column are different, and gradually increase radially from the holes closest to the motor shaft through-hole. This allows for the use of more bolts to secure larger motors, ensuring a more secure mounting.

[0014] In some embodiments, the first mounting hole is a strip-shaped through hole, and its width gradually increases from the position near the motor shaft through hole towards the radial direction.

[0015] In some embodiments, the support plate is welded to the base plate, and a reinforcing block is provided on the right side of the support plate, which is welded to both the support plate and the base plate. The reinforcing block can improve the stability of the support plate. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of a low-speed motor load testing device according to one embodiment of the present invention;

[0017] Figure 2 A schematic diagram of the low-speed motor load testing device from another perspective;

[0018] Figure 3 A schematic diagram of a low-speed motor load testing device with a motor mounted on it via bolts and nuts.

[0019] Figure 4A schematic diagram of a low-speed motor load testing device according to another embodiment of the present invention, wherein a motor is mounted on the device by bolts and nuts.

[0020] Figure label:

[0021] 1. Base plate; 101. Strip-shaped through hole; 102. Motor shaft through hole; 103. First mounting hole; 2. Support plate; 3. Mounting base; 4. Drive shaft; 5. Coupling; 6. Load arm; 61. Second mounting hole; 7. Load plate; 8. Reinforcing block; 9. Bearing seat; 10. Screw; 11. Locking bolt; 12. Motor. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0023] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, unless otherwise explicitly defined, terms such as setting, installing, connecting, and fixing should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0025] Example 1

[0026] refer to Figures 1 to 3 As shown, the present invention provides a low-speed motor load testing device, comprising: a base plate 1, a support plate 2, a mounting base 3, a transmission shaft 4, a coupling 5, a load arm 6, and a load disk 7.

[0027] The support plate 2 is fixed to the base plate 1 by bolts or welding. In this embodiment, the support plate 2 is preferably welded to the base plate 1. One, two, three or more reinforcing blocks 8 are provided on the right side of the support plate 2. The reinforcing blocks 8 are triangular or rectangular, etc., and the reinforcing blocks 8 are welded to the support plate 2 and the base plate 1.

[0028] A bearing housing 9 is fixedly connected to the mounting hole at the upper part of the support plate 2. The drive shaft 4 is inserted into the inner bushing of the bearing in the bearing housing 9 and connected to it, so that the drive shaft 4 can rotate.

[0029] The coupling 5 is connected to the right end of the drive shaft 4, and the load arm 6 is fixed to the left end of the drive shaft 4 by bolts. Specifically, one end of the bolt passes through the through hole of the load arm 6 and engages with the threaded hole on the drive shaft 4. The load plate 7 is detachably connected to the load arm 6. Furthermore, the load plate 7 is provided with threaded holes, and the load arm 6 is provided with two, three, four or more second mounting holes 61 along its length for adjusting the fixed position of the load plate 7. One end of the screw 10 passes through the second mounting hole 61 on the load arm 6 and engages with the threaded hole on the load plate 7 to achieve a fixed connection.

[0030] Mounting base 3 is horizontally adjustable and fixed to base plate 1. Specifically, mounting base 3 is L-shaped or L-shaped, with multiple through holes at its lower end. Base plate 1 has one, two or more strip-shaped through holes 101 horizontally. The lower ends of multiple locking bolts 11 pass through the through holes and strip-shaped through holes 101 at the lower end of mounting base 3 and are threadedly locked with locking nuts.

[0031] The mounting base 3 is provided with a motor shaft through hole 102 that corresponds to the left and right ends of the coupling 5 and is used for the motor shaft of the power supply motor 12 to pass through.

[0032] The mounting base 3 has three, four, five, six or more rows of first mounting holes 103 arranged radially around its circumference for fixing the motor 12. The diameter of the multiple first mounting holes 103 in each row is different, and the diameter gradually increases in the radial direction from the hole near the motor shaft through hole 102. That is, the diameter of the first mounting hole 103 near the motor shaft through hole 102 is small, and the diameter of the first mounting hole 103 gradually increases in the radial direction.

[0033] Example 2

[0034] refer to Figure 4 As shown, another low-speed motor load testing device provided by this utility model differs from Embodiment 1 in that: two, three, four, five, six or more first mounting holes 103 for fixing the motor 12 are radially distributed on the mounting base 3. The first mounting holes 103 are strip-shaped through holes, and the width gradually increases from the position near the motor shaft through hole 102 towards the radial direction.

[0035] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A low-speed motor load testing device, characterized by, include: The system includes a base plate, a support plate and a mounting base fixed to the base plate, a drive shaft that rotatably engages with the support plate, a coupling connected to the right end of the drive shaft, a load arm fixed to the left end of the drive shaft, and a load plate detachably connected to the other end of the load arm. The mounting base is provided with a motor shaft through hole corresponding to the left and right ends of the coupling and used for the motor shaft of the power supply motor to pass through, as well as multiple rows or more first mounting holes radially distributed around the circumference for fixing the motor.

2. A low speed motor load testing device according to claim 1, wherein, The mounting base is laterally adjustable and fixed to the base plate.

3. A low speed motor load testing device according to claim 2, wherein, The mounting base is L-shaped or L-shaped, with multiple through holes at its lower end. A strip-shaped through hole is provided horizontally on the base plate. The lower end of the locking bolt passes through the through hole and the strip-shaped through hole and is threadedly locked to the locking nut.

4. A low speed motor load testing device as claimed in claim 1, wherein, A bearing housing is fixedly connected to the mounting hole on the support plate, and the transmission shaft is connected to the inner bushing of the bearing in the bearing housing.

5. A low speed motor load testing device as claimed in claim 1, wherein, The load arm is provided with a plurality of second mounting holes along its length for adjusting the fixed position of the load disk.

6. A low-speed motor load testing device according to claim 1 or 5, characterized in that, The load arm is fixedly connected by a connecting screw passing through its second mounting hole and locking it into the threaded hole on the load plate.

7. A low speed motor load testing device as claimed in claim 1, wherein, The diameter of the multiple first mounting holes in each column is different, and gradually increases in the radial direction of the holes near the motor shaft through hole.

8. The low-speed motor load testing device according to claim 1, characterized in that, The first mounting hole is a strip-shaped through hole, and its width gradually increases from the position near the motor shaft through hole towards the radial direction.

9. A low speed motor load testing apparatus as claimed in claim 1, wherein, The support plate is welded to the base plate, and a reinforcing block is provided on the right side of the support plate and welded to it and the base plate.

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