A torque test device for electromagnetic brake

Abstract

The present invention relates to the technical field of brake testing, and provides a torque testing device for an electromagnetic brake, including a base and a torque tester, wherein the base is provided with a sliding mechanism, the base is provided with a magnetic powder brake, one end of the magnetic powder brake is connected with a coupling, and is connected to the torque tester through the coupling, and one end of the torque tester is provided with a connector; the present invention also includes a clamping assembly, the clamping assembly is installed on the sliding mechanism, the clamping assembly includes a mounting plate, a rotating drum and a clamping claw, the end surface of the mounting plate is provided with a sliding through groove laid along its radial direction, the clamping claw passes through the sliding through groove, the middle of the mounting plate is provided with a central axis for loading the brake body, the front end surface of the rotating drum is provided with a spiral guide rail that slides with the tail end of the clamping claw, and the axial height of the spiral guide rail gradually increases from the outside to the inside, and the sliding mechanism enables the central axis to move toward the connector and connect. The present invention can quickly and conveniently install the brake body to be tested, is simple to operate, and meets the needs of various types of brake testing.

Description

Technical Field

[0001] The invention relates to the technical field of brake testing, and in particular to a torque testing device for an electromagnetic brake. Background Art

[0002] The electromagnetic brake is a connector that transmits the torque of the active side to the passive side. It can be freely connected, disconnected or braked as needed. It has the advantages of compact structure, simple operation, sensitive response, long life, reliable use, and easy remote control. In order to ensure the normal use of the electromagnetic brake, the brake is usually tested for torque, and a torque sensor and a rotating mechanism are set to test the electromagnetic brake. The application number is CN202123154206.4, which discloses a static torque test tool for a power-off brake. The brake to be tested is fixed on the mounting plate by removing the screws on the brake. The brake is heavy and needs to be lifted and aligned with the threaded holes on the mounting plate to be fixed, which is inconvenient to operate. Summary of the invention

[0003] The object of the present invention is to provide a torque testing device for an electromagnetic brake which can conveniently and quickly fix and clamp a brake body for testing.

[0004] The embodiment of the present invention is realized through the following technical scheme: a torque testing device of an electromagnetic brake comprises a base and a torque tester, a sliding mechanism is installed on the base, a magnetic powder brake is installed on the base, one end of the magnetic powder brake is connected to a coupling, and is connected to the torque tester through the coupling, and a connector is provided at one end of the torque tester; it also comprises a clamping assembly, the clamping assembly is installed on the sliding mechanism, the clamping assembly comprises a mounting disk, a rotating cylinder and a claw, the end surface of the mounting disk is provided with a sliding groove laid along its radial direction, the claw passes through the sliding groove, and a central axis for loading the brake body is provided in the middle of the mounting disk, the front end surface of the rotating cylinder is provided with a spiral guide rail slidingly matched with the tail end of the claw, and the axial height of the spiral guide rail gradually increases from the outside to the inside, and the sliding mechanism is used to make the central axis move toward and connect with the connector.

[0005] Furthermore, the sliding mechanism includes a transmission screw and a sliding mounting seat, one end of the transmission screw is connected to a reduction motor for driving, the transmission screw passes through the sliding mounting seat and cooperates therewith, and the lower end of the mounting plate is fixed to the sliding mounting seat.

[0006] Furthermore, a gear ring is fixedly installed inside the rotating drum, the gear ring is meshed with a gear, the gear is connected to a driving motor for driving, and the driving motor is installed on the sliding mounting seat.

[0007] Furthermore, guide posts are provided on both sides of the transmission screw rod, and the guide posts pass through the sliding mounting seat and are slidably connected thereto.

[0008] Furthermore, the sliding through grooves are provided with at least three groups and are evenly spaced around the end surface of the mounting plate, and the lengths of adjacent claws gradually decrease around the center of the mounting plate.

[0009] Furthermore, the connector is a sleeve structure, and the inner wall of the connector is provided with at least one strip-shaped protrusion arranged along its axial direction, and the central axis is provided with a notch that matches the strip-shaped protrusion on one side close to the connector.

[0010] Furthermore, a display screen is installed on the side of the base, and the display screen is electrically connected to the torque tester.

[0011] Furthermore, the front end of the clamping claw is a right-angle hook structure, and an anti-slip rubber pad is provided on the inner side of the clamping claw.

[0012] The technical solution of the embodiment of the present invention has at least the following advantages and beneficial effects: compared with the prior art, the present invention inserts the brake body to be tested into the central shaft from the middle, and the rotation of the drum can automatically fix the brake body in the radial and axial directions at the same time, and then the sliding mechanism moves to the central shaft and clamps it in the connecting shaft to fix it, thereby completing the preparation before the test. The whole operation is simple, fast and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 A schematic structural diagram of a torque testing device for an electromagnetic brake provided in an embodiment of the present invention;

[0015] Figure 2 It is a front structural schematic diagram of the installation disk in the present invention;

[0016] Figure 3 is a schematic diagram of the internal structure of the clamping assembly in the present invention;

[0017] Figure 4 It is a schematic diagram of the connection between the clamping claw and the spiral guide rail on the rotating drum in the present invention;

[0018] Figure 5 for Figure 4 Schematic diagram of the cross section along the AA direction;

[0019] Figure 6 It is a schematic diagram of the local structure of the connector in the present invention.

[0020] Icons: 1-base, 2-torque tester, 3-coupling, 4-magnetic powder brake, 5-connector, 51-bar protrusion, 6-clamping assembly, 61-mounting plate, 611-sliding groove, 62-rotating cylinder, 621-spiral guide rail, 622-gear ring, 63-claw, 631-anti-slip rubber pad, 64-middle shaft, 641-notch, 7-sliding mechanism, 71-reduction motor, 72-transmission screw, 73-sliding mounting seat, 74-drive motor, 75-guide column, 76-gear, 8-display screen, 9-brake body. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Example

[0025] The following is further described in conjunction with specific embodiments. Figure 1-Figure 6As shown, this embodiment is a torque test device for an electromagnetic brake, including a base 1 and a torque tester 2, a sliding mechanism 7 is installed on the base 1, a magnetic powder brake 4 is installed on the base 1, one end of the magnetic powder brake 4 is connected to a coupling 3, and is connected to the torque tester 2 through the coupling 3, and a connector 5 is provided at one end of the torque tester 2; it also includes a clamping assembly 6, the clamping assembly 6 is installed on the sliding mechanism 7, the clamping assembly 6 includes a mounting plate 61, a rotating drum 62 and a claw 63, the end surface of the mounting plate 61 is provided with a sliding groove 611 laid along its radial direction, the claw 63 passes through the sliding groove 611, and the middle part of the mounting plate 61 is provided with a central axis 64 for loading the brake body 9, and the front end surface of the rotating drum 62 is provided with a The rear end of the clamping claw 63 is slidably matched with the spiral guide rail 621, and the axial height of the spiral guide rail 621 gradually increases from the outside to the inside, and the middle axis 64 is moved toward the connecting head 5 and connected through the sliding mechanism 7; specifically, during use of the present invention, by lifting the brake body 9 and allowing the middle axis 64 to pass through the middle of it, by driving the rotating drum 62 to rotate, the clamping claw 63 is gathered inward along the sliding groove 611 of the mounting plate 61 until it contacts and clamps the outer cylindrical surface of the brake body 9, so that the radial direction of the brake body 9 is limited and fixed, and the rear end of the clamping claw 63 is provided with a plurality of sliding groove notches 641 that are clamped into the spiral guide rail 621 and slidably matched therewith, and its working principle is similar to that of the three-jaw chuck. At the same time, the spiral guide rail 6 The axial lengths of 21 are different, and gradually increase or decrease along the direction of spiral rotation. Therefore, when the claws 63 are gathered centripetally to clamp the brake body 9, each claw 63 contacts the spiral guide rail 621 at different points, and the claws 63 gradually have a certain displacement ability along the axis. Therefore, the brake body 9 can be clamped between the end face of the mounting plate 61 and the claws 63 to complete the axial limitation of the brake body 9. Therefore, during the rotation of the drum 62, the claws 63 not only gather radially but also retract axially, which can adapt to the test of brake bodies 9 of various sizes and thicknesses, and has a wider range of applications. It is worth noting that the model of the magnetic powder brake 4 is CZ-500, and the sliding mechanism 7 drives the clamped brake body 9 moves toward one side of the connecting head 5. The above process can be carried out simultaneously with the clamping and gathering of the claws 63, so that the central axis 64 is clamped into the connecting head 5 and fixed. The magnetic powder brake 4 drives the torque tester 2 to rotate through the coupling 3, thereby driving the brake body 9 to rotate. The torque of the brake body 9 is detected by the torque tester 2, which can be displayed by equipment such as a torque power meter. The brake body 9 is braked by the friction between the brake pad and the brake disc. The brake disc is fixed on the central axis 64, and the brake pad is fixed on the clamping assembly. The test is more convenient and quick. In addition, the recorded central axis 64 can be replaced according to the different models of the brake body 9 to be tested, and the diameter of the central axis 64 is not fixed.

[0026] The sliding mechanism 7 in this embodiment includes a transmission screw 72 and a sliding mounting seat 73. One end of the transmission screw 72 is connected to a reduction motor 71 for driving. The transmission screw 72 passes through the sliding mounting seat 73 to cooperate with it. The lower end of the mounting plate 61 is fixed to the sliding mounting seat 73. A gear ring 622 is fixedly installed inside the rotating drum 62. The gear ring 622 is meshed with a gear 76. The gear 76 is connected to a drive motor 74 for driving. The drive motor 74 is installed on the sliding mounting seat 73. Specifically, the clamping mechanism is installed as a whole on the sliding mounting seat 73. On the top, the reduction motor 71 drives the transmission screw 72 to control the clamping assembly 6 that fixes the brake body 9 to move toward the side of the torque tester 2. While the reduction motor 71 is working, the drive motor 74 is energized so that the gear 76 drives the ring gear 622 to drive the rotating drum 62, so that the spiral guide rail 621 rotates forward or reversely to clamp and fix the brake body 9 until the middle shaft 64 is docked and inserted into the connector 5 to complete the test preparation. Except for the manual assistance required for the brake to be inserted into the middle shaft 64, the rest of the whole process can be completed automatically, and the operation is simple and convenient.

[0027] In this embodiment, guide columns 75 are provided on both sides of the transmission screw 72, and the guide columns 75 pass through the sliding mounting seat 73 and are slidably connected thereto. Specifically, guide columns 75 are provided on both sides of the transmission screw 72 to improve the smoothness and stability of the movement of the sliding mounting seat 73, making it easier for the central axis 64 to dock with the connecting head 5.

[0028] The sliding through grooves 611 in this embodiment are provided with at least three groups and are evenly spaced around the end surface of the mounting plate 61, and the lengths of adjacent claws 63 gradually decrease around the center of the mounting plate 61; specifically, because the spiral guide rail 621 gradually decreases inwardly, the end surface of the spiral guide rail 621 is not flat. Therefore, in order to ensure the clamping stability of the end surface of the brake body 9, the front end of the claws 63 needs to be kept flush, and the lengths between the claws 63 are different, and their lengths gradually decrease clockwise or counterclockwise along the spiral guide rail 621.

[0029] The connecting head 5 in this embodiment is a sleeve structure, and the inner wall of the connecting head 5 is provided with at least one strip protrusion 51 arranged along its axial direction, and the central axis 64 is provided with a notch 641 that cooperates with the strip protrusion 51 close to the side of the connecting head 5; specifically, the notch 641 of the central axis 64 can just be aligned with the strip protrusion 51 that is inserted into the connecting head 5. Because the central axis 64 is equipped with an anti-rotation limit device after being inserted into the mounting plate 61, the notch 641 is aligned upward with the notch 641 during insertion. The notch 641 can be slightly larger than the width of the strip protrusion 51 to provide sufficient error, so that when the notch 641 is inserted into the connecting head 5, it can transmit torque to the brake body 9 to be tested.

[0030] A display screen 8 is installed on the side of the base 1 in this embodiment, and the display screen 8 is electrically connected to the torque tester 2; specifically, the torque data is detected by the torque tester 2 and displayed in real time on the display screen 8 for identification by the operator.

[0031] The front end of the claw 63 in this embodiment is a right-angle hook structure, and an anti-slip rubber pad 631 is provided on the inner side of the claw 63; specifically, the claw 63 with a right-angle hook structure can fit the outer cylindrical surface and end surface of the brake body 9, so as to complete the radial and axial limiting fixation of the brake body 9, and the anti-slip rubber pad 631 can increase the contact friction while avoiding pinching the surface of the brake body 9.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A torque test device for an electromagnetic brake, comprising a base (1) and a torque tester (2), wherein a sliding mechanism (7) is mounted on the base (1), and characterized in that: A magnetic powder brake (4) is installed on the base (1); one end of the magnetic powder brake (4) is connected to a coupling (3) and is connected to the torque tester (2) via the coupling (3); one end of the torque tester (2) is provided with a connector (5); It also includes a clamping assembly (6), which is installed on the sliding mechanism (7). The clamping assembly (6) includes a mounting plate (61), a rotating cylinder (62) and a claw (63). The end surface of the mounting plate (61) is provided with a sliding groove (611) laid along its radial direction. The claw (63) passes through the sliding groove (611). The middle part of the mounting plate (61) is provided with a central axis (64) for loading the brake body (9). The front end surface of the rotating cylinder (62) is provided with a spiral guide rail (621) that is slidably matched with the rear end of the claw (63). The axial height of the spiral guide rail (621) gradually increases from the outside to the inside. Through the sliding mechanism (7), the central axis (64) moves toward and connects with the connecting head (5). During use, the brake body (9) is lifted up and the central axis (64) passes through the middle thereof, and the rotating drum (62) is driven to rotate, so that the claws (63) gather inward along the sliding grooves (611) of the mounting plate (61) until they contact and clamp the outer circumferential surface of the brake body (9), so that the brake body (9) is fixed in radial direction. The tail end of the claws (63) is provided with a plurality of sliding grooves (641) which are inserted into the spiral guide rail (621) to slide with it. At the same time, the axial length of the spiral guide rail (621) is different, and the spiral guide rail (621) is rotated in the direction of the spiral rotation. Therefore, when the claws (63) gather together to clamp the brake body (9), each claw (63) contacts the spiral guide rail (621) at different points, and the claws (63) gradually have the ability to move along the axis to a certain extent. Therefore, the brake body (9) can be clamped between the end face of the mounting plate (61) and the claws (63), thereby completing the axial limitation of the brake body (9). Therefore, during the rotation of the drum (62), the claws (63) not only gather together in the radial direction synchronously but also retract in the axial direction, which can adapt to the testing of brake bodies (9) of various sizes and thicknesses.

2. The torque testing device for electromagnetic brake according to claim 1, characterized in that: The sliding mechanism (7) comprises a transmission screw (72) and a sliding mounting seat (73); one end of the transmission screw (72) is connected to a reduction motor (71) for driving; the transmission screw (72) passes through the sliding mounting seat (73) and cooperates therewith; the lower end of the mounting plate (61) is fixed to the sliding mounting seat (73).

3. The torque testing device for electromagnetic brake according to claim 2, characterized in that: A gear ring (622) is fixedly mounted inside the rotating drum (62), the gear ring (622) is meshed with a gear (76), the gear (76) is connected to a driving motor (74) for driving, and the driving motor (74) is mounted on the sliding mounting seat (73).

4. The torque testing device for electromagnetic brake according to claim 2, characterized in that: Guide pillars (75) are provided on both sides of the transmission screw rod (72), and the guide pillars (75) pass through the sliding mounting seat (73) and are slidably connected thereto.

5. The torque testing device for electromagnetic brake according to claim 1, characterized in that: The sliding through grooves (611) are provided with at least three groups and are evenly spaced around the end surface of the mounting plate (61), and the lengths of adjacent claws (63) gradually decrease around the center of the mounting plate (61).

6. The torque testing device for electromagnetic brake according to claim 1, characterized in that: The connector (5) is a sleeve structure, and the inner wall of the connector (5) is provided with at least one strip-shaped protrusion (51) arranged along its axial direction, and the central axis (64) is provided with a notch (641) matching with the strip-shaped protrusion (51) on one side close to the connector (5).

7. The torque testing device for electromagnetic brake according to claim 1, characterized in that: A display screen (8) is installed on the side of the base (1), and the display screen (8) is electrically connected to the torque tester (2).

8. The torque testing device for electromagnetic brake according to claim 1, characterized in that: The front end of the clamping claw (63) is a right-angle hook structure, and an anti-slip rubber pad (631) is provided on the inner side of the clamping claw (63).

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