Finished product detection device for brushless motor

Abstract

The utility model relates to the technical field of brushless motor processing, and discloses a finished product detection device for a brushless motor, which comprises a bottom plate, the top of the bottom plate is fixedly connected with two support plates, two support blocks and four guide rods, a winding shaft is rotatably connected between the opposite sides of the two support plates, and the winding shaft is connected with the bottom plate. The outer wall of the winding shaft is fixedly connected with a winding disc, and one end of the winding shaft rotationally penetrates through the outer portion of one supporting plate and is provided with a linkage assembly. The supporting plate, the winding shaft, the linkage assembly, the moving assembly and other structures are used in cooperation, so that the rotating speed of the motor is visually reflected through the number of turns of a winding wire, rotating speed calculation is conducted according to timing of the timer, an operator can visually see changes of the winding wire, and the rotating speed can be accurately measured through timing and winding conditions. The testing process is clearer and easier to understand, complicated calculation or additional instruments are not needed, complicated instruments and equipment are not needed, and the cost and the complexity of the system are reduced.

Description

Technical Field

[0001] This utility model relates to the field of brushless motor processing technology, and in particular to a finished product testing device for brushless motors. Background Technology

[0002] Brushless motors (BLDC motors) are widely used in various power tools, electric vehicles, robots, and home appliances. Due to their simple structure, high efficiency, and strong reliability, they have found widespread application in modern industry. However, the manufacturing process of brushless motors is relatively complex, involving multiple stages such as winding, assembly, and testing. Ensuring the motor's performance and quality during use is crucial. Compared to traditional brushed motors, brushless motors eliminate the brushes and commutator, employing an electronic commutation system that regulates motor rotation through an electronic controller (such as ESC). This makes brushless motors more efficient and reduces friction and wear during prolonged operation, extending their lifespan. To ensure the quality of brushless motors, the finished product testing stage is particularly important, and mechanical performance testing of the motor is a very crucial step.

[0003] For example, Chinese utility model patent application number 202220421062.X discloses a brushless motor finished product testing device, including a base with a snap-fit ​​seat on the base. The snap-fit ​​seat has a snap-fit ​​groove at its top, and multiple support columns are arranged on the outer side of the snap-fit ​​seat, with the support columns vertically fixed to the base. It also includes a movable ring, with all the support columns passing through the movable ring and the movable ring slidingly engaging with the support columns. Multiple detection plates are arranged through the side wall of the movable ring, evenly distributed around the center of the movable ring, with graduations on the upper surface of the detection plates. Limit blocks are fixed to the detection plates, and a second spring is fixed between the limit blocks and the movable ring. During the operation of the brushless motor, the distance the detection plates jump on the movable ring is observed to understand its rotational stability. Its structure is simple, its manufacturing cost is low, and it reduces the burden on enterprises.

[0004] Testing the motor performance and mechanical properties of brushless motors is crucial, typically requiring testing of motor speed and torque. However, existing brushless motor testing methods largely rely on manual inspection and traditional testing instruments, often necessitating significant human intervention. These methods are susceptible to the influence of operator experience and equipment precision, and also involve long testing cycles and high costs, placing a burden on enterprises. Therefore, this paper proposes a finished product testing device for brushless motors to address these issues. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a finished product testing device for brushless motors.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a finished product testing device for brushless motors, comprising a base plate, two support plates, two support blocks, and four guide rods fixedly connected to the top of the base plate; a winding shaft rotatably connected between opposite sides of the two support plates; a winding disc fixedly connected to the outer wall of the winding shaft; one end of the winding shaft rotatably passing through the outside of one of the support plates and equipped with a linkage component; the other end of the winding shaft rotatably passing through the outside of the other support plate and equipped with a connecting component; a reciprocating rod rotatably connected between opposite sides of the two support blocks; one end of the reciprocating rod rotatably passing through the outside of one of the support blocks and fixedly connected with a connecting shaft; a moving component provided on the outer wall of the reciprocating rod; a moving frame fixedly connected to the top of the base plate and located between the two support blocks; a mounting plate slidably connected to the outer walls of the four guide rods; a placement frame fixedly connected to the top of the mounting plate; and a clamping component provided inside the placement frame.

[0007] The winding reel can be wound with a winding wire. By controlling the time of the counter, the number of revolutions of the output end of the brushless motor can be indirectly reflected, thus allowing the speed of the brushless motor to be tested. By setting up a linkage component, the rotation of one motor can drive the moving component to move the winding wire evenly on the winding reel, thereby avoiding the winding wire being entirely wound in one area of ​​the winding reel, making it easier to observe. By setting up a clamping component, any unnecessary movement of the motor during the test can be effectively avoided, thus making the test results more reliable.

[0008] As a further description of the above technical solution:

[0009] The linkage component includes a small gear fixedly installed at one end of the winding shaft, a toothed belt meshing with the outer wall of the small gear, and a large gear meshing with the inner wall of the toothed belt.

[0010] The interior of the large gear is fixedly connected to the outer wall of the connecting shaft. By using the different number of teeth of the large gear and the small gear, the winding line on the winding disc can be wound around once, while the lever moves the winding line to the next area, thus making it easier to use.

[0011] As a further description of the above technical solution:

[0012] The connecting assembly includes a left coupling movably mounted on the other end of the winding shaft, and a right coupling is fixedly mounted on one side of the left coupling by bolts and nuts.

[0013] By setting up left and right couplings, the output end of the motor under test can be connected to the testing device, thus completing the installation.

[0014] As a further description of the above technical solution:

[0015] A torque sensor is fixedly installed on the outer wall of the winding shaft near the left coupling.

[0016] By setting up a torque sensor, the torque of the motor under test can be directly measured, providing a clear and intuitive reflection. Furthermore, by knowing the motor's power in advance, the torque can also be calculated using the power and speed.

[0017] As a further description of the above technical solution:

[0018] The moving component includes a reciprocating groove formed on the reciprocating rod, a sliding shaft is slidably connected inside the reciprocating groove, a sliding ring is fixedly connected to the top of the sliding shaft, and a lever is fixedly connected to the top of the sliding ring.

[0019] By setting a sliding shaft, rotational motion can be converted into linear motion, allowing the lever to drive the winding wire to move back and forth. This facilitates proper winding of the wire when the brushless motor has been rotating for an extended period, thus reflecting the rotational speed.

[0020] As a further description of the above technical solution:

[0021] The bottom of the slip ring is fixedly connected to a sliding rod, and the outer wall of the sliding rod is rotatably connected to a sliding cylinder.

[0022] The outer wall of the slide cylinder rotates on the inner wall of the moving frame. By setting the slide cylinder, the movement of the slip ring can be facilitated, and rotation can be avoided.

[0023] As a further description of the above technical solution:

[0024] The clamping assembly includes a threaded rod threadedly connected inside the placement frame, one end of which is rotatably connected to a clamping plate, and the other end of which is fixedly connected to a drive disk.

[0025] By setting up a drive disc, the threaded rod can be easily rotated, saving time and effort.

[0026] As a further description of the above technical solution:

[0027] A timer is fixedly installed on the front of the placement frame, and an electric telescopic rod is fixedly connected to the top of the base plate.

[0028] The telescopic end of the electric telescopic rod is fixedly connected to the bottom of the mounting plate. By setting a timer, the rotation speed can be tested by controlling the timer's duration. At the same time, the electric telescopic rod can move brushless motors of different heights to a suitable position and fix them to the right coupling.

[0029] This utility model has the following beneficial effects:

[0030] 1. Compared with existing technologies, this finished product testing device for brushless motors, through the coordinated use of structures such as support plates, winding shafts, linkage components, and moving components, can intuitively reflect the motor speed through the number of turns of the winding wire, and calculate the speed based on the timing of the timer. This allows operators to intuitively see the changes in the winding wire. By using timing and winding conditions, the testing process becomes clearer and easier to understand. It does not require complex calculations or additional instruments, and its simple structure reduces costs and system complexity by eliminating the need for complex instruments and equipment. At the same time, it does not require any internal modifications to the brushless motor, making it highly adaptable.

[0031] 2. Compared with existing technologies, this finished product testing device for brushless motors, through the coordinated use of structures such as guide rods, mounting plates, connecting components, and clamping components, is applicable to brushless motors of different heights and volumes. By adjusting the clamping method of the device, various models of motors can be easily fixed, thus broadening its applicability, reducing equipment requirements and adjustment time, and preventing errors caused by motor vibration, ensuring the stability and accuracy of the test. Attached Figure Description

[0032] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a finished product testing device for brushless motors proposed in this utility model.

[0033] Figure 2 This is a three-dimensional schematic diagram of the linkage component structure of a finished product testing device for brushless motors proposed in this utility model;

[0034] Figure 3 This is a three-dimensional schematic diagram of the moving component structure of a finished product testing device for brushless motors proposed in this utility model;

[0035] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0036] Figure 5 This is a three-dimensional schematic diagram of the clamping component structure of a finished product testing device for brushless motors proposed in this utility model.

[0037] Legend:

[0038] 1. Base plate; 2. Support plate; 3. Support block; 4. Guide rod; 5. Winding shaft; 6. Winding disc; 7. Reciprocating rod; 8. Connecting shaft; 9. Moving frame; 10. Mounting plate; 11. Placement frame; 12. Pinion gear; 13. Toothed belt; 14. Large gear; 15. Left coupling; 16. Right coupling; 17. Torque sensor; 18. Reciprocating groove; 19. Sliding shaft; 20. Slip ring; 21. Lever; 22. Sliding rod; 23. Sliding cylinder; 24. Threaded rod; 25. Clamping plate; 26. Drive disc; 27. Timer; 28. Electric telescopic rod. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] Reference Figure 1-5This utility model provides a finished product testing device for brushless motors, comprising a base plate 1. Two support plates 2, two support blocks 3, and four guide rods 4 are fixedly connected to the top of the base plate 1. A winding shaft 5 is rotatably connected between opposite sides of the two support plates 2. A winding disc 6 is fixedly connected to the outer wall of the winding shaft 5. One end of the winding shaft 5 rotatably passes through the outside of one of the support plates 2 and is equipped with a linkage component. The other end of the winding shaft 5 rotatably passes through the outside of the other support plate 2 and is equipped with a connecting component. A reciprocating rod 7 is rotatably connected between opposite sides of the two support blocks 3. One end of the reciprocating rod 7 rotatably passes through the outside of one of the support blocks 3 and is fixedly connected to a connecting shaft 8. A moving component is provided on the outer wall of the reciprocating rod 7. A moving frame 9 is fixedly connected to the top of the base plate 1 and located between the two support blocks 3. A mounting plate 10 is slidably connected to the outer walls of the four guide rods 4. A placement frame 11 is fixedly connected to the top of the mounting plate 10. A clamping component is provided inside the placement frame 11. A winding wire can be wound on the winding disc 6. The winding wire can be controlled by the number of turns. The timing of the counter 27 indirectly reflects the number of revolutions at the output end of the brushless motor, thus allowing the motor's speed to be measured. By setting up a linkage component, the rotation of one motor drives a moving component to move the winding wire evenly on the winding disc 6, preventing the entire winding wire from being wound in one area of ​​the winding disc 6, making it easier to observe. By setting up a clamping component, any unnecessary movement of the motor during the test can be effectively prevented, making the test results more reliable. Through the coordinated use of the support plate 2, winding shaft 5, linkage component, and moving component, the number of turns of the winding wire directly reflects the motor speed, and the speed is calculated from the timing of the timer 27, allowing the operator to visually observe the changes in the winding wire. The timing and winding status make the test process clearer and easier to understand, requiring no complex calculations or additional instruments. The simple structure reduces costs and system complexity by eliminating the need for complex instruments and equipment, and requires no internal modifications to the brushless motor, making it highly adaptable.

[0041] The linkage component includes a small gear 12 fixedly installed at one end of the winding shaft 5. A toothed belt 13 is meshed with the outer wall of the small gear 12. A large gear 14 is meshed with the inside of the toothed belt 13. The inside of the large gear 14 is fixedly connected to the outer wall of the connecting shaft 8. By using the different number of teeth of the large gear 14 and the small gear 12, the winding line on the winding disc 6 can be wound around once, while the lever 21 moves the winding line to the next area, thus making it easier to use.

[0042] The connecting assembly includes a left coupling 15 movably mounted on the other end of the winding shaft 5. A right coupling 16 is fixedly mounted on one side of the left coupling 15 by bolts and nuts. By setting the left coupling 15 and the right coupling 16, the output end of the motor under test can be connected to the testing device, thus completing the installation. A torque sensor 17 is fixedly mounted on the outer wall of the winding shaft 5 near the left coupling 15. By setting the torque sensor 17, the torque of the motor under test can be directly measured, providing a direct reflection. Furthermore, by knowing the power of the motor in advance, the torque can also be calculated from the power and speed.

[0043] The moving component includes a reciprocating groove 18 formed on the reciprocating rod 7. A sliding shaft 19 is slidably connected inside the reciprocating groove 18. A slip ring 20 is fixedly connected to the top of the sliding shaft 19. A lever 21 is fixedly connected to the top of the slip ring 20. By setting the sliding shaft 19, the rotational movement can be converted into linear motion, so that the lever 21 can drive the winding wire to move back and forth. This facilitates the proper winding of the winding wire when the brushless motor rotates for too long, and then reflects the rotational speed. A sliding rod 22 is fixedly connected to the bottom of the slip ring 20. A sliding cylinder 23 is rotatably connected to the outer wall of the sliding rod 22. The outer wall of the sliding cylinder 23 rotates on the inner wall of the moving frame 9. By setting the sliding cylinder 23, the movement of the slip ring 20 can be facilitated, and self-rotation can be avoided.

[0044] The clamping assembly includes a threaded rod 24 threaded inside the placement frame 11. One end of the threaded rod 24 is rotatably connected to a clamping plate 25, and the other end of the threaded rod 24 is fixedly connected to a drive disk 26. By setting the drive disk 26, the threaded rod 24 can be easily rotated, saving time and effort. A timer 27 is fixedly installed on the front of the placement frame 11, and an electric telescopic rod 28 is fixedly connected to the top of the base plate 1. The telescopic end of the electric telescopic rod 28 is fixedly connected to the bottom of the mounting plate 10. By setting the timer 27, the rotation speed can be tested by controlling the time of the timer 27. At the same time, the electric telescopic rod 28 can move brushless motors of different heights to a suitable position and fix them to the right coupling.

[0045] Working principle: First, the brushless motor to be tested needs to be placed in the mounting plate 10. Then, the output end of the brushless motor to be tested can be inserted into the right coupling 16. Then, the electric telescopic rod 28 is activated. The telescopic end drives the mounting plate 10 to move along the guide rod 4, so that the brushless motor moves to the same height as the right coupling 16, so that brushless motors of different heights can be tested. Then, the left coupling 15 and the right coupling 16 are fixedly connected with bolts and nuts. Then, the drive disk 26 is rotated to make the threaded rod 24 rotate, thereby pushing the clamping plate 25 to move along the inner wall of the placement frame 11, and then pushing the clamping plate 25 to fix the brushless motor to be tested, preventing the motor from shaking during the test and affecting the test results. At the same time, it can also fix brushless motors of different sizes, which is convenient for the staff to use.

[0046] Then, the winding wire is passed through the position between the levers 21 beforehand, and then wound onto the winding reel 6. The brushless motor under test is then powered on, and the timer 27 is started simultaneously. The output end of the brushless motor under test rotates, driving the left coupling 15, the right coupling 16, and the winding shaft 5 to rotate, causing the winding reel 6 to wind the winding wire into a turn. At the same time, the rotation of the winding shaft 5 drives the pinion 12 to rotate, synchronously driving the toothed belt 13 for transmission. The toothed belt 13 then drives the meshing large gear 14 to rotate synchronously, causing the connecting shaft 8 to rotate synchronously, driving the reciprocating rod 7 to rotate. The rotation of the reciprocating rod 7 causes the sliding shaft 19 to slide along the reciprocating groove 18, and the sliding cylinder 23 on the sliding rod 22 will move within the placement frame 11. This causes the slip ring 20 to move back and forth along the reciprocating rod 7, which in turn causes the lever 21 to move the winding wire back and forth, making the winding wire evenly wound on the winding disc 6. This allows for a direct indication of how many turns the winding wire has made on the winding disc 6. By controlling the timing of the timer, the speed of the brushless motor can be tested. At the same time, the torque output torque of the motor can be directly measured through the torque sensor 17 on the winding shaft 5. This device has a simple structure, requires no complex instruments, reduces costs and complexity, and does not require internal modifications to the motor. It is highly adaptable and easy to integrate into existing systems. It is also highly intuitive; by observing the number of turns of the winding wire, the motor speed can be calculated over a fixed period of time, providing more intuitive information.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A finished product inspection device for a brushless motor, comprising a base plate (1), characterized in that: The top of the base plate (1) is fixedly connected to two support plates (2), two support blocks (3), and four guide rods (4). A winding shaft (5) is rotatably connected between opposite sides of the two support plates (2). A winding disc (6) is fixedly connected to the outer wall of the winding shaft (5). One end of the winding shaft (5) rotatably passes through the outside of one of the support plates (2) and is equipped with a linkage component. The other end of the winding shaft (5) rotatably passes through the outside of the other support plate (2) and is equipped with a connecting component. The two support blocks (3) are rotatably connected between opposite sides of the base plate (1). A reciprocating rod (7) is rotatably connected between the sides. One end of the reciprocating rod (7) rotatably passes through the outside of one of the support blocks (3) and is fixedly connected to a connecting shaft (8). A moving component is provided on the outer wall of the reciprocating rod (7). A moving frame (9) is fixedly connected to the top of the base plate (1) and between the two support blocks (3). An mounting plate (10) is slidably connected to the outer walls of the four guide rods (4). A placement frame (11) is fixedly connected to the top of the mounting plate (10). A clamping component is provided inside the placement frame (11).

2. A finished product inspection device for a brushless motor according to claim 1, characterized by: The linkage assembly includes a small gear (12) fixedly installed at one end of the winding shaft (5), a toothed belt (13) meshing with the outer wall of the small gear (12), and a large gear (14) meshing with the inside of the toothed belt (13).

3. A finished product inspection device for a brushless motor according to claim 1, characterized in that: The connecting assembly includes a left coupling (15) movably mounted on the other end of the winding shaft (5), and a right coupling (16) is fixedly mounted on one side of the left coupling (15) by bolts and nuts.

4. A finished product inspection apparatus for a brushless motor according to claim 3, characterized in that: A torque sensor (17) is fixedly installed on the outer wall of the winding shaft (5) near the left coupling (15).

5. A finished product inspection device for a brushless motor according to claim 1, characterized by: The moving component includes a reciprocating groove (18) formed on the reciprocating rod (7), a sliding shaft (19) is slidably connected inside the reciprocating groove (18), a sliding ring (20) is fixedly connected to the top of the sliding shaft (19), and a lever (21) is fixedly connected to the top of the sliding ring (20).

6. A finished product inspection apparatus for a brushless motor according to claim 5, characterized in that: The bottom of the slip ring (20) is fixedly connected to a slide rod (22), and the outer wall of the slide rod (22) is rotatably connected to a slide cylinder (23).

7. A finished product inspection device for a brushless motor according to claim 1, characterized by: The clamping assembly includes a threaded rod (24) threaded inside the placement frame (11), one end of the threaded rod (24) is rotatably connected to a clamping plate (25), and the other end of the threaded rod (24) is fixedly connected to a drive disk (26).

8. A finished product inspection device for a brushless motor according to claim 1, characterized by: A timer (27) is fixedly installed on the front of the placement frame (11), and an electric telescopic rod (28) is fixedly connected to the top of the base plate (1).

Images