Brake with release holding mechanism

Abstract

The utility model relates to the technical field of brakes, and provides a brake with a release holding mechanism, which comprises a stator and an armature, a slide block is mounted on the end face of one side of the stator, and a step is arranged on the slide block; the at least one release block abuts against the step, the release block is fixedly connected with the armature, and when the stator is powered on to attract the armature, the armature drives the release block to jack up; and the displacement driver is connected with the sliding block so as to drive the sliding block to move into or out of a gap between the release block and the end face of the stator. According to the utility model, the release maintaining effect is better, and the stuck phenomenon is not easy to occur during recovery.

Description

Technical Field

[0001] The utility model relates to the technical field of brakes, and more specifically, to a brake with a release and holding mechanism. Background Technique

[0002] A brake is a device that has functions such as decelerating, stopping, or maintaining a stopped state of a moving part (or moving machinery), and is a mechanical part that stops or decelerates a moving part in a machine, commonly known as a brake or a brake. The main function of the release mechanism of an electromagnetic brake is to control the braking and release of the brake. When the electromagnet is energized, the magnetic force attracts the brake, causing it to closely combine with the brake disc to achieve the braking effect. When the electromagnet is de-energized, the release mechanism comes into play, separating the brake from the brake disc, and the transmission shaft can rotate freely. In this way, by controlling the on-off state of the electromagnet, the power transmission and control of the transmission shaft can be achieved.

[0003] Some existing electromagnetic brakes use a handle in cooperation with a ball for release. The handle rotates circumferentially, causing the ball to roll and pull the armature to move. When the use environment has severe dust and oil pollution, impurities are likely to accumulate in the rolling groove of the ball, resulting in uneven release of the handle, easy jamming, and poor release and holding effect. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a brake with a release and holding mechanism that has a better release and holding effect and is not prone to jamming during recovery.

[0005] The utility model is realized through the following technical solutions: A brake with a release and holding mechanism includes a stator and an armature. A slider is installed on one end face of the stator, and a step is provided on the slider; at least one release block, the release block abuts against the step, and the release block is fixedly connected to the armature. When the stator is energized to attract the armature, the armature drives the release block to lift; a displacement driver, the displacement driver is connected to the slider to drive the slider to move into or out of the gap between the release block and the end face of the stator.

[0006] Further, the stator is provided with a mounting hole, and a sleeve column is arranged in the mounting hole. The sleeve column is threadedly connected to the armature and the release block respectively.

[0007] Further, a first screw is screwed into one end of the armature and connected to the sleeve column, and a second screw is screwed into one end face of the release block and connected to the sleeve column.

[0008] Further, proximity switches are respectively installed at both ends of the slider, and a micro switch is installed on the stator.

[0009] Further, a first return spring and a second return spring are connected between the armature and the stator, and the first return spring and the second return spring are respectively arranged inside and outside the coil.

[0010] Further, the slider is perpendicularly arranged with respect to the release block.

[0011] Further, two groups of release blocks are symmetrically distributed on both sides of the stator, the slider is stuck in the middle of the release block, and the displacement driver is fixedly connected to the stator.

[0012] Further, the displacement driver adopts an electric cylinder or a lead screw stepping motor.

[0013] The technical solution of the present utility model has at least the following advantages and beneficial effects: when the coil is energized, the armature is attracted to push up the release block, and the slider is moved to be stuck in the release gap between the release block and the stator for support, so that the brake has a long-term stable and effective release and holding effect, and it is simple and easy to restore to the normal working state without long-term power-on to maintain the release state. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a schematic diagram of the end face structure of the stator of the brake with a release and holding mechanism provided for the embodiment of the present utility model;

[0016] Figure 2 It is a schematic cross-sectional structure diagram of the brake with a release and holding mechanism in the present utility model;

[0017] Figure 3 For Figure 1 the cross-sectional view at B-B in

[0018] Reference numerals: 1 - stator, 11 - mounting hole, 12 - sleeve column, 13 - microswitch, 2 - armature, 3 - slider, 31 - step, 4 - release block, 5 - displacement driver, 6 - second screw, 7 - proximity switch, 8 - first return spring, 9 - second return spring, 10 - first screw. Detailed Embodiments

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0022] The following is further described in conjunction with specific embodiments. Referring to Figures 1-3 As shown, this embodiment is a brake with a release and holding mechanism, including a stator 1 and an armature 2. A slider 3 is installed on one end face of the stator 1, and a step 31 is provided on the slider 3; at least one release block 4, the release block 4 abuts against the step 31, and the release block 4 is fixedly connected to the armature 2. When the stator 1 is energized to attract the armature 2, the armature 2 drives the release block 4 to lift; a displacement driver 5, the displacement driver 5 is connected to the slider 3 to drive the slider 3 to move into or out of the gap between the release block 4 and the end face of the stator 1; specifically, when the coil is energized, the armature 2 of the brake attracts towards the stator 1 side, and the axial movement of the armature 2 drives the release block 4 to lift, so that the displacement driver 5 pulls the step 31 of the slider 3 into the release block 4 to hold it. Thus, when the coil of the electromagnetic brake is de-energized, a long-term release effect can also be maintained. This release mechanism is simple to operate and not prone to jamming, and there will be no situation where it cannot be reset.

[0023] Referring to Figure 3 As shown, in some embodiments, the stator 1 is provided with a mounting hole 11, and a sleeve column 12 is provided in the mounting hole 11. The sleeve column 12 is threadedly connected to the armature 2 and the release block 4 respectively; a first screw 10 is screwed into one end of the armature 2 to be connected to the sleeve column 12, and a second screw 6 is screwed into one end face of the release block 4 to be connected to the sleeve column 12; specifically, through the above structure, the armature 2 and the release block 4 form an integral structure. During normal use, the second screw 6 needs to be loosened so that the armature 2 presses the brake pads. The axial movement of the armature 2 can be transmitted through the sleeve column 12 and the second screw 6, and the movement of the armature 2 and the release block 4 is synchronous.

[0024] Refer to Figure 1 and Figure 2 As shown, proximity switches 7 are respectively installed at both ends of the slider 3, and a microswitch 13 is installed on the stator 1. Specifically, when the brake is powered on, after the armature 2 is attracted, the microswitch 13 emits a signal to start the displacement driver 5, which pushes the slider 3 into the release gap until the proximity switch 7 emits an in-place signal. When the brake is powered off, the brake will be in a release-holding state, and at the same time, the microswitch 13 continuously emits a reset control logic: when the brake is powered on until the armature 2 is attracted and the displacement driver 5 is started, the slider 3 leaves the release gap until the proximity switch 7 emits an in-place signal, and then after the brake is powered off, the brake will return to its normal working state.

[0025] As Figure 2 shown, in order to ensure that the armature 2 applies force evenly against the brake pad, a first return spring 8 and a second return spring 9 are connected between the armature 2 and the stator 1, and the first return spring 8 and the second return spring 9 are respectively arranged inside and outside the coil.

[0026] As Figure 1 shown, in some embodiments, the slider 3 is arranged perpendicular to the release block 4, and the slider 3 is inserted and withdrawn in the vertical direction.

[0027] As Figure 1 shown, two groups of release blocks 4 are symmetrically distributed on both sides of the stator 1, and the slider 3 is stuck in the middle of the release block 4, and the displacement driver 5 is fixedly connected to the stator 1. Specifically, when maintaining the release, the release gaps of the release blocks 4 on both sides are the same, so as to avoid the phenomenon of the armature 2 shifting.

[0028] It should be noted that the displacement driver 5 adopts an electric cylinder or a lead screw stepping motor and is controlled electrically.

[0029] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A brake with a release and holding mechanism, comprising a stator (1) and an armature (2), characterized in that: A slider (3) is mounted on one end face of the stator (1), and a step (31) is provided on the slider (3); At least one release block (4), the release block (4) abuts against the step (31), and the release block (4) is fixedly connected to the armature (2). When the stator (1) is energized to attract the armature (2), the armature (2) drives the release block (4) to jack up; A displacement driver (5), the displacement driver (5) is connected to the slider (3) to drive the slider (3) to move into or out of the gap between the release block (4) and the end face of the stator (1).

2. The brake with a release and retention mechanism according to claim 1, characterized in that: The stator (1) is provided with a mounting hole (11), and a sleeve column (12) is arranged in the mounting hole (11). The sleeve column (12) is threadedly connected to the armature (2) and the release block (4) respectively.

3. The brake with a release and retention mechanism according to claim 2, characterized in that: A first screw (10) is screwed into one end of the armature (2) to be connected to the sleeve column (12), and a second screw (6) is screwed into one side end face of the release block (4) to be connected to the sleeve column (12).

4. The brake with a release and holding mechanism according to any one of claims 1-3, characterized in that: Proximity switches (7) are respectively mounted at both ends of the slider (3), and a microswitch (13) is mounted on the stator (1).

5. The brake with a release and holding mechanism according to claim 1, characterized in that: A first return spring (8) and a second return spring (9) are connected between the armature (2) and the stator (1), and the first return spring (8) and the second return spring (9) are respectively arranged inside and outside the coil.

6. The brake with a release and retention mechanism according to claim 1, characterized in that: The slider (3) and the release block (4) are arranged perpendicular to each other.

7. The brake with a release and holding mechanism according to claim 6, characterized in that: There are two groups of release blocks (4) symmetrically distributed on both sides of the stator (1), and the slider (3) is stuck in the middle of the release block (4). The displacement driver (5) is fixedly connected to the stator (1).

8. The brake with a release and holding mechanism according to claim 1, characterized in that: The displacement driver (5) adopts an electric cylinder or a screw stepper motor.

Images