A quick locking device for brushless motor production detection

By using a moving frame, a two-way lead screw, and a bevel gear in the fast-lock device for brushless motor testing, the front, rear, and sides of the brushless motor are limited and fixed, solving the problems of displacement and shaking during motor testing in the prior art, and improving the accuracy and adaptability of the testing.

CN224383318UActive Publication Date: 2026-06-19HUNAN FENGHUI MOTOR CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN FENGHUI MOTOR CO LTD
Filing Date
2025-07-03
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing fast-locking devices for brushless motor production and testing cannot limit and fix the front and rear ends of the brushless motor, causing the motor to shift or shake during testing, which affects the accuracy of testing.

Method used

It adopts a structure with a movable frame, a two-way lead screw, a bevel gear and a Z-shaped frame. The drive component drives the clamping pad to limit and fix the front, rear and sides of the brushless motor. Combined with the adjustable clamping pad position, it can adapt to motors of different sizes.

Benefits of technology

This achieves a stable fixation of the brushless motor, preventing displacement or shaking of the motor during the testing process and improving the accuracy and adaptability of the testing.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of brushless motor testing technology, and discloses a fast-locking device for brushless motor production testing. It includes a base, an external mounting assembly, and two movable frames on the mounting assembly. Each movable frame has an internal mounting groove, and a bidirectional lead screw is rotatably connected between the two sides of the inner wall of the mounting groove. A bevel gear is fitted onto the outer surface of the bidirectional lead screw, and two Z-shaped brackets are threaded onto the outer surface of the bidirectional lead screw. This utility model, through the coordinated use of the movable frames, mounting groove, bidirectional lead screw, bevel gear, Z-shaped brackets, adjusting assembly, clamping pad, and driving assembly, can limit and fix the front and rear ends of the brushless motor, preventing displacement or shaking during operation due to lack of front and rear end limiting and ensuring the accuracy of motor testing.
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Description

Technical Field

[0001] This utility model relates to the field of brushless motor testing technology, and in particular to a speed lock device for brushless motor production testing. Background Technology

[0002] The quick lock of a brushless motor refers to the process of quickly and securely fixing the brushless motor during production, testing, or maintenance. This process is very important because brushless motors need to be stably fixed during testing to avoid errors in test data and ensure that their performance and quality can be accurately evaluated.

[0003] Existing fast-locking devices for brushless motor production and testing can generally only clamp and fix the side of the brushless motor, and cannot limit and fix the front and rear ends of the brushless motor. This causes the motor to shift or shake during operation due to the lack of limiting and fixing the front and rear ends, thus affecting the accuracy of motor testing.

[0004] Therefore, it is necessary to provide a speed lock device for brushless motor production and testing to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a speed lock device for brushless motor production testing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a fast-locking device for brushless motor production and testing, comprising a base, an installation assembly on the outside of the base, two movable frames on the installation assembly, an installation groove inside the movable frame, a bidirectional lead screw rotatably connected between the two sides of the inner wall of the installation groove, a bevel gear sleeved on the outer surface of the bidirectional lead screw, two Z-shaped frames threadedly connected to the outer surface of the bidirectional lead screw, one side of the Z-shaped frame slidingly extending to the outside of the movable frame and provided with an adjustment assembly, a clamping pad on one side of the adjustment assembly, a drive assembly on the top of the movable frame, and a placement assembly on the top of the base.

[0007] By setting the drive component to drive the bevel gear to rotate, the bevel gear will drive the double-acting screw to rotate. At this time, the two Z-shaped frames will move closer to each other according to the shape of the double-acting screw, thereby driving the adjustment component to move. The adjustment component will then drive the clamping pad to move towards the brushless motor on the placement component until the two clamping pads abut against the front and rear ends of the brushless motor respectively, thereby limiting and fixing the front and rear ends of the brushless motor.

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

[0009] The mounting assembly includes two movable slots formed on the surface and back of the base. A limit rod and a double-acting lead screw are respectively installed inside the two movable slots. A drive rod is fixedly connected to one end of the double-acting lead screw.

[0010] By rotating the drive rod, the two-way lead screw 2 is driven to rotate. At this time, the two moving frames will move closer to each other according to the shape of the two-way lead screw 2, thereby driving the two clamping pads 2 to move towards the brushless motor until the clamping pads 2 abut against the side of the brushless motor, so as to clamp and fix the side of the brushless motor.

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

[0012] The adjustment assembly includes a slide groove on one side of the Z-shaped frame, and an L-shaped mounting plate is slidably connected inside the slide groove.

[0013] As a further description of the above technical solution:

[0014] The top of the L-shaped mounting plate has several fixing slots, one of which has a damping pin inserted inside.

[0015] By pulling out the damping pin, the L-shaped mounting plate can be released from its fixation, allowing it to slide within the groove, thus facilitating the adjustment of the position of the clamping pad.

[0016] As a further description of the above technical solution:

[0017] The drive assembly includes a starter rod rotatably connected to the top of the movable frame, the bottom end of which rotatably extends into the interior of the mounting slot and is fixedly connected to a bevel gear.

[0018] As a further description of the above technical solution:

[0019] The second bevel gear meshes with the first bevel gear.

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

[0021] The placement assembly includes an arc-shaped placement platform fixedly connected to the top of the base, and a placement pad is fixedly connected to the inner wall of the arc-shaped placement platform.

[0022] As a further description of the above technical solution:

[0023] Each of the two movable frames has a clamping pad fixedly connected to one of its opposite sides.

[0024] This utility model has the following beneficial effects:

[0025] 1. Compared with existing technologies, this brushless motor production and testing speed lock device, through the coordinated use of a moving frame, mounting slot, bidirectional lead screw, bevel gear, Z-shaped frame, adjustment component, clamping pad, and drive component, can limit and fix the front and rear ends of the brushless motor, preventing displacement or shaking of the motor during operation due to the lack of limiting and fixing of the front and rear ends, thus ensuring the accuracy of motor testing.

[0026] 2. Compared with the prior art, the fast lock device for brushless motor production and testing can release the fixation of the L-shaped mounting plate by pulling out the damping pin, so that the L-shaped mounting plate can slide in the slide groove, which can drive the clamping pad to slide and change the position of the clamping pad. This allows it to adapt to the limiting work of the front and rear ends of brushless motors of different sizes, thus improving the practicality of the fast lock device for brushless motor production and testing. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a speed lock device for brushless motor production and testing proposed in this utility model.

[0028] Figure 2 This is a schematic diagram of the overall three-dimensional structure of a speed lock device for production and testing of a brushless motor proposed in this utility model from another angle.

[0029] Figure 3 This is a schematic diagram of the moving frame structure of a speed lock device for brushless motor production and testing proposed in this utility model;

[0030] Figure 4 for Figure 3 A magnified view of a portion at point A shown in the diagram.

[0031] Legend:

[0032] 1. Base; 2. Movable frame; 3. Mounting slot; 4. Double-acting lead screw one; 5. Bevel gear one; 6. Z-shaped frame; 7. Clamping pad one; 8. Movable slot; 9. Limiting rod; 10. Double-acting lead screw two; 11. Drive rod; 12. Slide groove; 13. L-shaped mounting plate; 14. Fixing slot; 15. Damping pin; 16. Starting rod; 17. Bevel gear two; 18. Arc-shaped placement platform; 19. Placement pad; 20. Clamping pad two. Detailed Implementation

[0033] 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.

[0034] Reference Figure 1-4 This utility model provides a fast-locking device for brushless motor production and testing: It includes a base 1, an external mounting assembly on the base 1, two movable frames 2 on the mounting assembly, an internal mounting groove 3, a bidirectional lead screw 4 rotatably connected between the two sides of the inner wall of the mounting groove 3, a bevel gear 5 sleeved on the outer surface of the bidirectional lead screw 4, and two Z-shaped frames 6 threadedly connected to the outer surface of the bidirectional lead screw 4. One side of the Z-shaped frame 6 slides through to the outside of the movable frame 2 and is equipped with an adjustment assembly. A clamping pad 7 is provided on one side of the adjustment assembly. A drive assembly is provided on the top of the movable frame 2, and a placement assembly is provided on the top of the base 1. The opposite sides of the two movable frames 2 are fixed. The device is fixedly connected with a clamping pad 20. Two movable frames 2 are symmetrical about the center of the base 1. A bevel gear 5 is fitted onto the unthreaded part of the outer surface of the bidirectional lead screw 4. Two Z-shaped frames 6 are threaded onto the two types of threads on the bidirectional lead screw 4. By setting a drive component to drive the bevel gear 5 to rotate, the bevel gear 5 drives the bidirectional lead screw 4 to rotate. At this time, the two Z-shaped frames 6 will move closer to each other according to the shape of the bidirectional lead screw 4, thereby driving the adjustment component to move. The adjustment component drives the clamping pad to move towards the brushless motor on the placement component until the two clamping pads abut against the front and rear ends of the brushless motor, thereby limiting and fixing the front and rear ends of the brushless motor.

[0035] The mounting assembly includes two movable slots 8 formed on the surface and back of the base 1. A limiting rod 9 and a bidirectional lead screw 10 are respectively installed inside the two movable slots 8. One end of the bidirectional lead screw 10 is fixedly connected to a drive rod 11. The limiting rod 9 is fixedly connected inside one of the movable slots 8, and the bidirectional lead screw 10 is rotatably connected inside the other movable slot 8. The drive rod 11 is T-shaped, with one side extending through to the outside of the base 1. One side of each of the two movable frames 2 is threaded onto two different threads on the outer surface of the bidirectional lead screw, and the other side is slidably connected to the outside of the limiting rod 9. By rotating the drive rod 11, the bidirectional lead screw 10 is rotated. At this time, the two movable frames 2 will move closer to each other according to the shape of the bidirectional lead screw 10, thereby moving the two clamping pads 20 towards the brushless motor until the clamping pads 20 abut against the side of the brushless motor, thus clamping and fixing the side of the brushless motor.

[0036] The adjustment assembly includes a slide groove 12 on one side of the Z-shaped frame 6. An L-shaped mounting plate 13 is slidably connected inside the slide groove 12. Several fixing slots 14 are provided on the top of the L-shaped mounting plate 13. A damping pin 15 is inserted into the inside of one of the fixing slots 14. The clamping pad 7 is fixedly connected to one side of the L-shaped mounting plate 13. The top of the damping pin 15 slides through to the outside of the Z-shaped frame 6. By pulling out the damping pin 15, the fixing of the L-shaped mounting plate 13 can be released, allowing the L-shaped mounting plate 13 to slide in the slide groove 12, thereby facilitating the adjustment of the position of the clamping pad 7.

[0037] The drive assembly includes a starter rod 16 rotatably connected to the top of the movable frame 2. The bottom end of the starter rod 16 rotatably extends into the interior of the mounting groove 3 and is fixedly connected to a bevel gear 17, which meshes with a bevel gear 5.

[0038] The placement assembly includes an arc-shaped placement platform 18 fixedly connected to the top of the base 1, and a placement pad 19 fixedly connected to the inner wall of the arc-shaped placement platform 18.

[0039] Working principle: When in use, first place the brushless motor to be fixed on the arc-shaped placement platform 18. Then, the operator manually rotates the drive rod 11, which drives the bidirectional lead screw 10 to rotate. At this time, the two moving frames 2 move closer to each other and gradually move towards the brushless motor as the bidirectional lead screw 10 rotates, until the two clamping pads 20 abut against the side of the brushless motor, thus abutting against the side of the brushless motor.

[0040] Next, adjust the position of clamping pad 7 according to the size of the brushless motor. By pulling out the damping pin 15, the L-shaped mounting plate 13 can be released from its fixation. Then, the operator pulls the L-shaped mounting plate 13 outward to move the clamping pad 7 until it moves to the appropriate position. At this time, insert the pin into the corresponding fixing slot 14 through the Z-shaped bracket to fix the position of the clamping pad 7, thus completing the adjustment of the position of the clamping pad 7. Then, rotate the starting rod 16 to drive the bevel gear 17 to rotate, so that the bevel gear 17 drives the meshing bevel gear 5 to rotate. At this time, the bevel gear 5 will drive the bidirectional lead screw 4 to rotate, so that the two Z-shaped brackets 6 move closer to each other and drive the L-shaped mounting plate and clamping pad 7 to move towards the front and rear ends of the brushless motor until the front and rear ends of the two clamping pads 7 abut against each other, thus clamping and limiting the front and rear ends of the brushless motor.

[0041] 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 speed lock device for brushless motor production testing, comprising a base (1), characterized in that: The base (1) is provided with an installation component on the outside. The installation component is provided with two movable frames (2). The movable frame (2) is provided with an installation groove (3). A double-acting screw (4) is rotatably connected between the two sides of the inner wall of the installation groove (3). A bevel gear (5) is sleeved on the outer surface of the double-acting screw (4). Two Z-shaped frames (6) are threadedly connected to the outer surface of the double-acting screw (4). One side of the Z-shaped frame (6) slides through to the outside of the movable frame (2) and is provided with an adjustment component. A clamping pad (7) is provided on one side of the adjustment component. A drive component is provided on the top of the movable frame (2). A placement component is provided on the top of the base (1).

2. The speed lock device for brushless motor production testing according to claim 1, characterized in that: The mounting assembly includes two movable slots (8) formed on the surface and back of the base (1). The two movable slots (8) are respectively provided with a limit rod (9) and a two-way screw rod (10). One end of the two-way screw rod (10) is fixedly connected to a drive rod (11).

3. The speed lock device for brushless motor production testing according to claim 1, characterized in that: The adjustment assembly includes a slide groove (12) on one side of the Z-shaped frame (6), and an L-shaped mounting plate (13) is slidably connected inside the slide groove (12).

4. The speed lock device for brushless motor production testing according to claim 3, characterized in that: The top of the L-shaped mounting plate (13) is provided with several fixing slots (14), and a damping pin (15) is inserted into the interior of one of the fixing slots (14).

5. The speed lock device for brushless motor production testing according to claim 1, characterized in that: The drive assembly includes a starter rod (16) rotatably connected to the top of the movable frame (2), the bottom end of the starter rod (16) rotatably penetrating into the interior of the mounting groove (3) and fixedly connected to a bevel gear (17).

6. The speed lock device for brushless motor production testing according to claim 5, characterized in that: The second bevel gear (17) meshes with the first bevel gear (5).

7. The speed lock device for brushless motor production testing according to claim 1, characterized in that: The placement assembly includes an arc-shaped placement platform (18) fixedly connected to the top of the base (1), and a placement pad (19) is fixedly connected to the inner wall of the arc-shaped placement platform (18).

8. The speed lock device for brushless motor production testing according to claim 1, characterized in that: Each of the two movable frames (2) has a clamping pad (20) fixedly connected to one side of the opposite side.