On-load detection clamping device of frameless torque motor

By designing a load-bearing detection clamping device that includes a worktable, guide rail clamp, moving plate, fixed base and load motor, and utilizing elastic ring and semi-circular frame to quickly position the stator of torque motor, the problem of complex structure and cumbersome clamping of frameless torque motor detection device is solved, and a fast and stable clamping process is achieved.

CN224137343UActive Publication Date: 2026-04-17WUHU QINGCHUAN ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHU QINGCHUAN ELECTRIC CO LTD
Filing Date
2025-04-24
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing load testing devices for frameless torque motors are complex in structure, cumbersome in clamping process, and inefficient.

Method used

A load testing clamping device was designed, comprising a worktable, a guide rail clamp, a moving plate, a fixed base, and a load motor. The device utilizes an elastic ring and a semi-circular frame to quickly position the stator of the torque motor, and fixes the rotor of the torque motor through the fixed base and limit plate on the output shaft of the load motor, thereby simplifying the clamping process.

Benefits of technology

It enables rapid and stable clamping of frameless torque motors, improving testing efficiency and facilitating observation and operation.

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Abstract

The utility model discloses an on-load detection clamping device of a frameless torque motor, which relates to the technical field of torque electric detection and comprises a workbench and a guide rail clamp, clamping mechanisms are symmetrically arranged on two sides of a rail, each clamping mechanism comprises a moving plate, the moving plates are slidably connected onto the rail, a support frame is arranged on each moving plate, and the guide rail clamp is arranged on the support frame. An elastic ring is fixed in the supporting frame through a semicircular frame, a fixing seat is arranged on an output shaft of the load motor, a mounting groove is formed in the fixing seat, and the fixing seat is connected with a limiting plate. When the torque motor stator fixing device is used, the torque motor stator is installed in the elastic ring, the elastic ring is provided with the limiting groove matched with the flange on the supporting frame, the elastic ring can be rapidly positioned on the supporting frame, and the torque motor stator is fixed to the supporting frame through the semicircular frame; and meanwhile, the torque motor rotor can be quickly mounted in the mounting groove of the fixed seat on the output shaft of the load motor, and the torque motor rotor is fixed on the fixed seat through the limiting plate, so that detection can be started.
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Description

Technical Field

[0001] This utility model relates to the technical field of torque electrical detection, specifically to a load testing clamping device for a frameless torque motor. Background Technology

[0002] A frameless torque motor is a frameless, bearingless permanent magnet synchronous motor consisting only of a rotor and a stator. During its production process, load torque testing is required. However, some existing torque motor load testing devices are cumbersome and inefficient when clamping the stator and rotor of the torque motor due to their complex structure. Summary of the Invention

[0003] The purpose of this invention is to provide a load testing clamping device for frameless torque motors to overcome the above-mentioned defects in the prior art.

[0004] A frameless torque motor load testing clamping device includes a worktable and a guide rail clamp. The worktable is provided with a rail, and clamping mechanisms are symmetrically arranged on both sides of the rail. Each clamping mechanism includes a movable plate, a fixed seat, and a load motor. The movable plate is slidably connected to the rail and abuts against the rail through the guide rail clamp. The movable plate is provided with a support frame, and an elastic ring for positioning the stator of the torque motor is fixed in the support frame by a semi-circular frame. The elastic ring has a cutout on its side. The load motor is mounted on the fixed frame on the rail, and a fixed seat is provided on its output shaft. The fixed seat has a mounting groove for mounting the rotor of the torque motor, and a limit plate is bolted to the outer end of the fixed seat.

[0005] Preferably, two tracks are provided and symmetrically arranged on the worktable.

[0006] Preferably, the movable plate is connected to the main body of the guide rail clamp via a connecting plate.

[0007] Preferably, both ends of the semicircular frame are connected to the support frame by bolts.

[0008] Preferably, the side of the support frame is provided with a retaining edge that cooperates with the limiting groove on the elastic ring.

[0009] Preferably, the workbench is provided with a protective cover above the track, and one side of the protective cover is hinged to a vertical plate on the workbench via a hinge.

[0010] Preferably, the protective cover is transparent.

[0011] The beneficial effects achieved by this utility model are as follows:

[0012] In this application, the torque motor stator is installed into the elastic ring. The elastic ring has a limiting groove that mates with the flange on the support frame, which can quickly position the elastic ring on the support frame. Then, the torque motor stator in the elastic ring is fixed to the support frame by the semi-circular frame. At the same time, the torque motor rotor can be quickly installed in the mounting groove of the fixed seat on the output shaft of the load motor, and the torque motor rotor is fixed on the fixed seat by the limiting plate. Then, the testing can begin. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the track and clamping mechanism of this utility model.

[0015] Figure 3 This is a schematic diagram of the structure of the guide rail clamp, support frame, semi-circular frame, elastic ring, and torque motor stator of this utility model.

[0016] Figure 4 This is a schematic diagram of the structure of the fixed frame, load motor, fixed base and torque motor rotor of this utility model.

[0017] Figure 5 This is a structural schematic diagram of the fixing frame, load motor and fixing base of this utility model.

[0018] Figure 6 This is a schematic diagram of the structure of the elastic ring of this utility model.

[0019] Figure 7 This is a schematic diagram of the support frame of this utility model.

[0020] In the diagram, 1. Workbench; 2. Rail; 3. Clamping mechanism; 31. Moving plate; 32. Guide rail clamp; 321. Connecting plate; 33. Support frame; 331. Edge guard; 34. Semi-circular frame; 35. Elastic ring; 351. Limiting groove; 36. Fixed frame; 37. Load motor; 38. Fixed seat; 381. Mounting groove; 39. Limiting plate; 4. Protective cover; 5. Torque motor stator; 6. Torque motor rotor. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, 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 some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0023] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] like Figure 1-7 As shown, this utility model provides a load testing clamping device for a frameless torque motor, including a worktable 1 and a guide rail clamp 32. The worktable 1 is provided with a rail 2, and clamping mechanisms 3 are symmetrically arranged on both sides of the rail 2. The clamping mechanism 3 includes a moving plate 31, a fixed seat 38, and a load motor 37. The moving plate 31 is slidably connected to the rail 2 and abuts against the rail 2 through the guide rail clamp 32. There are two rails 2, which are symmetrically arranged on the worktable 1 to make the moving plate 31 move more smoothly. The moving plate 31 is connected to the main body of the guide rail clamp 32 through a connecting plate 321.

[0025] The movable plate 31 is provided with a support frame 33. An elastic ring 35 for positioning the torque motor stator 5 is fixed in the support frame 33 by a semi-circular frame 34. The elastic ring 35 has a cut on its side. The load motor 37 is mounted on a fixed frame 36 on the track 2 and its output shaft is provided with a fixed seat 38. The fixed seat 38 is provided with a mounting groove 381 for mounting the torque motor rotor 6. The outer end of the fixed seat 38 is connected to a limit plate 39 by bolts.

[0026] In addition, the two ends of the semicircular frame 34 are respectively connected to the support frame 33 by bolts, which facilitates the assembly and disassembly of the semicircular frame 34 on the support frame 33, thereby improving the clamping efficiency of the torque motor stator 5.

[0027] In addition, the side of the support frame 33 is provided with a retaining edge 331 that cooperates with the limiting groove 351 on the elastic ring 35, so that the elastic ring 35 can be positioned on the support frame 33 more quickly.

[0028] The workbench is equipped with a protective cover 4 above the track 2. One side of the protective cover 4 is hinged to the vertical plate on the workbench 1 to protect the operator during testing. The protective cover 4 is transparent, which facilitates observation during testing.

[0029] Detailed implementation methods and principles:

[0030] During testing, the torque motor rotor 6 is installed in the mounting groove 381 of the fixed seat 38 on the output shaft of the load motor 37, and the torque motor rotor 6 is fixed on the fixed seat 38 by the limiting plate 39;

[0031] Then the torque motor stator 5 is placed in the elastic ring 35 and placed on the support frame 33, so that the limiting groove 351 on the elastic ring 35 contacts the stop edge 331 on the support frame 33, and the torque motor stator 5 is fixed on the support frame 33 by the semi-circular frame 34.

[0032] Then release the guide rail clamp 32, push the moving plate 31 to move on the track 2, so that the torque motor stator 5 is pushed towards the torque motor rotor 6. Under the magnetic force, the left and right stators and rotors automatically align. Finally, fix the guide rail clamp 32 to fix the moving plate 31 on the track 2, and the load test can begin.

[0033] The embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A clamping device for detecting load of a frameless torque motor, comprising a workbench (1) and a guide rail clamp (32), characterized in that: The workbench (1) is provided with a track (2), and clamping mechanisms (3) are symmetrically provided on both sides of the track (2). The clamping mechanism (3) includes a moving plate (31), a fixed seat (38) and a load motor (37). The moving plate (31) is slidably connected to the track (2) and abuts against the track (2) through a guide rail clamp (32). The moving plate (31) is provided with a support frame (33). An elastic ring (35) for positioning the torque motor stator (5) is fixed in the support frame (33) through a semi-circular frame (34). The elastic ring (35) has a cut on its side. The load motor (37) is installed on a fixed frame (36) on the track (2) and a fixed seat (38) is provided on its output shaft. The fixed seat (38) is provided with an installation groove (381) for installing the torque motor rotor (6). The outer end of the fixed seat (38) is connected to a limit plate (39) by bolts.

2. The clamping device for detecting the load of the frameless torque motor according to claim 1, characterized in that: The track (2) is provided in two symmetrically arranged on the workbench (1).

3. The clamping device for detecting the load of the frameless torque motor according to claim 1, characterized in that: The movable plate (31) is connected to the main body of the guide rail clamp (32) via the connecting plate (321).

4. The load testing clamping device for a frameless torque motor according to claim 1, characterized in that: The two ends of the semicircular frame (34) are connected to the support frame (33) by bolts.

5. The clamping device for detecting the load of the frameless torque motor according to claim 1, characterized in that: The side of the support frame (33) is provided with a retaining edge (331) that cooperates with the limiting groove (351) on the elastic ring (35).

6. The clamping device for detecting the load of the frameless torque motor according to claim 1, characterized in that: The workbench is provided with a protective cover (4) above the track (2), and one side of the protective cover (4) is hinged to the vertical plate on the workbench (1) by a hinge.

7. The clamping device for detecting the load of the frameless torque motor according to claim 6, characterized in that: The protective cover (4) is transparent.