CN220268257U - Brake with variable torque - Google Patents

Abstract

The utility model relates to the technical field of brakes and provides a brake with variable torque, which comprises a main stator and a first movable plate, wherein a first winding and a first spring combination are arranged in the main stator, the brake further comprises a second spring combination, a second winding and a second movable plate, one end of the second spring combination is connected with the second movable plate, and the second winding is powered off to drive the second movable plate to apply force to the first movable plate for tightly pressing. The utility model can adjust the torque according to the use requirement, and improves the braking performance.

Description

Brake with variable torque

Technical Field

The utility model relates to the technical field of brakes, in particular to a brake with variable torque.

Background

An electromagnetic brake is a device for realizing a braking function by using electromagnetic force, and is generally composed of an electromagnet and a braking wheel. When the brake is energized, the electromagnet generates a magnetic field that attracts friction plates on the brake wheel or disc, thereby slowing or stopping rotation of the brake wheel or disc. When the electromagnet is de-energized, the friction plate will disengage from the brake wheel or disc, thereby allowing it to resume movement. The torque applied on the friction plate by the traditional power-off brake is completely provided by a return spring, and the gap size and the elasticity of the spring are difficult to adjust, so that the torque provided by the brake is constant and cannot be adjusted according to the use requirement.

Disclosure of Invention

The utility model aims to provide a brake with variable torque, which can adjust the torque according to the use requirement and improve the braking performance.

The embodiment of the utility model is realized by the following technical scheme: the utility model provides a changeable stopper of moment of torsion, includes main stator and first movable plate, be provided with first winding and first spring combination in the main stator, still include second spring combination, second winding and second movable plate, the one end of second spring combination with the second movable plate is connected, through the second winding outage in order to drive the second movable plate orientation first movable plate application of force supports tightly.

Preferably, the motor further comprises a secondary stator, wherein the secondary stator is clamped in the middle of the main stator, one end of the secondary stator is screwed with a screw to be connected with the main stator, the second spring combination and the second winding are arranged in the secondary stator, and the second movable plate is abutted to the end face of one side of the secondary stator, on which the second spring combination is arranged.

Preferably, the device further comprises a connecting sleeve, wherein the connecting sleeve is arranged between the first movable plate and the second movable plate, and one end of the connecting sleeve is fixedly connected with the first movable plate.

Preferably, the diameter of the second movable plate is matched with the inner hole of the main stator.

Preferably, the second spring assembly and the second winding are embedded in the main stator, and the second moving plate is arranged between the first moving plate and the main stator.

Preferably, the second spring assembly and the second winding are disposed on the inner side of the main stator, and the first winding and the first spring assembly are disposed on the outer side of the main stator.

Preferably, the diameter of the second moving plate is smaller than the diameters of the main stator and the first moving plate; when the second movable plate is sucked, the second movable plate is embedded into the main stator, and the end face of the second movable plate is kept flush with the end face of the main stator.

Preferably, the brake disc comprises a main stator, a first movable plate, a brake disc and a flange, wherein the main stator, the first movable plate, the brake disc and the flange are sequentially arranged along the axial direction, and a connecting piece is arranged between the flange and the main stator.

The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects: compared with the prior art, the utility model has the advantages that the first winding and the second winding respectively control the group of springs by adding the group of spring combinations and the windings, when the first winding is powered off and the second winding is powered on, only the first spring combination is applied to the friction plate, only the first spring combination exerts the force to generate the torque, and the two windings are powered off, the forces of the two spring combinations are superposed and transmitted to the friction plate, and the torque change is increased at the moment, so that the purpose of torque adjustment is realized, and the braking performance of the brake is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a torque variable brake provided in embodiment 1 of the present utility model;

fig. 2 is a schematic structural view of a torque variable brake according to embodiment 2 of the present utility model.

Icon: 1-a main stator, 2-a first winding, 3-a first spring combination, 4-a first movable plate, 5-a second spring combination, 6-a second winding, 7-second movable plate, 8-auxiliary stator, 9-screw, 10-connecting sleeve, 11-connecting piece, 12-brake disc, 13-flange.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

Example 1

The following further describes a brake with variable torque, referring to fig. 1, the brake comprises a main stator 1 and a first movable plate 4, wherein a first winding 2 and a first spring combination 3 are arranged in the main stator 1, the brake further comprises a second spring combination 5, a second winding 6 and a second movable plate 7, one end of the second spring combination 5 is connected with the second movable plate 7, and the second movable plate 7 is driven to apply force to the first movable plate 4 to be tightly pressed by disconnecting the power of the second winding 6; specifically, the utility model adds the second winding 6, the second movable plate 7 and the second spring combination 5 to be combined with the original electromagnetic brake, so that the brake is provided with two windings, each winding controls one spring combination, when the first winding 2 is powered off, the first spring combination 3 pushes the first movable plate 4 to act on the friction disc, at the moment, only the force exerted by the first spring combination 3 generates torque, and when the second winding 6 is powered off, the second spring combination 5 drives the second movable plate 7 to act on the first movable plate 4 again to be transmitted to the friction disc together, at the moment, the torque generated by the force exerted on the friction disc by the superposition of the first spring combination 3 and the second spring combination 5 is larger, and thus the torque adjustment of the brake is realized.

The embodiment also comprises a secondary stator 8, wherein the secondary stator 8 is clamped in the middle of the main stator 1, one end of the secondary stator 8 is screwed with a screw 9 to be connected with the main stator 1, the second spring combination 5 and the second winding 6 are arranged in the secondary stator 8, and the second movable plate 7 is abutted against the end face of one side of the secondary stator 8, on which the second spring combination 5 is arranged; specifically, the second spring assembly 5, the second movable plate 7, the second winding 6 and the auxiliary stator 8 are integrally formed into a connection which can be conveniently detached from the main stator 1, and the second spring assembly can be selectively installed according to use.

The embodiment also comprises a connecting sleeve 10, wherein the connecting sleeve 10 is arranged between the first movable plate 4 and the second movable plate 7, one end of the connecting sleeve 10 is fixedly connected with the first movable plate 4, and the diameter of the second movable plate 7 is matched with the inner hole of the main stator 1; specifically, the second moving plate 7 is parallel to the first moving plate 4, and a gap between the second moving plate 7 and the first moving plate 4 is larger, so that the connecting sleeve 10 plays a role in extending transmission force in order to facilitate the force of the second moving plate 7 to be transmitted to the first moving plate 4.

The embodiment further comprises a brake disc 12 and a flange 13, the main stator 1, the first movable plate 4, the brake disc 12 and the flange 13 are sequentially arranged along the axial direction, and a connecting piece 11 is arranged between the flange 13 and the main stator 1.

Example 2

As shown in fig. 2, in the embodiment 1, the difference between the embodiment 2 and the embodiment 1 is that the second spring assembly 5 and the second winding 6 are directly embedded in the main stator 1, and the second moving plate 7 is arranged between the first moving plate 4 and the main stator 1; specifically, in order to fully utilize the internal space of the stator and reduce the volume occupied by the brake, the second spring assembly 5, the second winding 6, and the like are directly installed in the main stator 1, and the manner is the same as that of the first winding 2 and the second spring assembly 5, and the first spring assembly 3 is parallel to the second spring assembly 5.

In order to fully utilize the radial space of the stator, the second spring assembly 5 and the second winding 6 are arranged on the inner side of the main stator 1, and the first winding 2 and the first spring assembly 3 are arranged on the outer side of the main stator 1.

It should be noted that the diameter of the second moving plate 7 is smaller than the diameters of the main stator 1 and the first moving plate 4; when the second movable plate 7 is attracted, the second movable plate 7 is embedded into the main stator 1, the end face of the second movable plate 7 is kept flush with the end face of the main stator 1, and when the second winding 6 is powered off, the second movable plate 7 is pushed to extend out of the groove opening of the main stator 1 to be in contact with the first movable plate 4 for applying force under the action of the second spring combination 5.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (8)

1. The utility model provides a changeable stopper of moment of torsion, includes main stator (1) and first movable plate (4), be provided with first winding (2) and first spring combination (3) in main stator (1), its characterized in that: the motor further comprises a second spring combination (5), a second winding (6) and a second movable plate (7), wherein one end of the second spring combination (5) is connected with the second movable plate (7), and the second movable plate (7) is driven to be pressed against the first movable plate (4) by power-off of the second winding (6).

2. The variable torque brake of claim 1, wherein: the motor further comprises an auxiliary stator (8), wherein the auxiliary stator (8) is clamped in the middle of the main stator (1), one end of the auxiliary stator (8) is screwed with a screw (9) to be connected with the main stator (1), the second spring assembly (5) and the second winding (6) are arranged in the auxiliary stator (8), and the second movable plate (7) is abutted to the end face of one side of the auxiliary stator (8) where the second spring assembly (5) is arranged.

3. The torque-variable brake according to claim 2, characterized in that: the novel movable plate comprises a first movable plate (4) and a second movable plate (7), and is characterized by further comprising a connecting sleeve (10), wherein the connecting sleeve (10) is arranged between the first movable plate (4) and the second movable plate (7), and one end of the connecting sleeve (10) is fixedly connected with the first movable plate (4).

4. The torque-variable brake according to claim 2, characterized in that: the diameter of the second movable plate (7) is matched with the inner hole of the main stator (1).

5. The variable torque brake of claim 1, wherein: the second spring combination (5) and the second winding (6) are embedded in the main stator (1), and the second movable plate (7) is arranged between the first movable plate (4) and the main stator (1).

6. The variable torque brake of claim 5, wherein: the second spring combination (5) and the second winding (6) are arranged on the inner side of the main stator (1), and the first winding (2) and the first spring combination (3) are arranged on the outer side of the main stator (1).

7. The variable torque brake of claim 6, wherein: the diameter of the second movable plate (7) is smaller than the diameters of the main stator (1) and the first movable plate (4);

when the second movable plate (7) is sucked, the second movable plate (7) is embedded into the main stator (1), and the end face of the second movable plate (7) is kept flush with the end face of the main stator (1).

8. The variable torque brake of any one of claims 1-7, wherein: still include brake disc (12) and flange (13), main stator (1), first movable plate (4), brake disc (12) and flange (13) set up along the axial in proper order, just flange (13) with be equipped with connecting piece (11) between main stator (1).