CN218935088U

CN218935088U - Power-off brake

Info

Publication number: CN218935088U
Application number: CN202223071784.6U
Authority: CN
Inventors: 黄国峰; 林威仲
Original assignee: Changshu Sansong Precision Electromechanical Co ltd; Sunso Industry Ltd
Current assignee: Changshu Sansong Precision Electromechanical Co ltd; Sunso Industry Ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-04-28
Anticipated expiration: 2032-11-18

Abstract

The electric breaking brake includes one armature seat, one end cover, one armature plate and one command sheet set, and the armature seat has one extending wall in the first end surface and one end cover fixed to the extending wall of the armature seat and set separately from the first end surface of the armature seat. Because the end cover is fixedly connected with the armature seat through the extension wall, the area occupied by the connecting part (namely the extension wall) of the end cover and the armature seat on the first end face of the armature seat can be greatly reduced, and therefore, when the power-off brake is manufactured, the group of plates with larger cross-sectional area can be selected, so that the power-off brake has good braking effect.

Description

Power-off brake

Technical Field

The present utility model relates to a brake device, and more particularly to a power-off brake device capable of generating a braking effect when not powered on.

Background

The power-off brake is mainly arranged at the rotating shaft of the speed changer or the motor and is used for providing braking effect in time when the machine encounters power failure in the operation process, so that the operation safety of the machine is ensured.

Referring to fig. 5 and 6, the prior art brake comprises an armature seat 61, an end plate 62, an armature plate 63, a pilot piece 64 and a plurality of springs 65, wherein the end plate 62 is arranged at one end surface of the armature seat 61 at intervals, and is locked and positioned on the armature seat 61 by a plurality of screws 66, the armature plate 63 is arranged between the armature seat 61 and the end plate 62, the pilot piece 64 is arranged between the armature plate 63 and the end cover 62, and the springs 65 are arranged between the armature seat 61 and the armature plate 63.

In the energized state, the armature seat 61 generates a magnetic force to attract the armature plate 63, so that the armature plate 63 compresses the spring 65, and the contact piece 64 is movable at this time; in the de-energized state, the spring 65 will push the armature plate 63 against the end plate 62, so that the contact plate 64 is clamped between the armature plate 63 and the end plate 62, thereby producing a braking effect on the motor or transmission.

As shown in fig. 6, since the screw 66 penetrates the end plate 62 and is locked to the end surface of the armature seat 61, that is, the screw 66 is disposed on the end surface of the armature seat 61 at intervals along the periphery of the end surface, the engaging piece 64 must be selected to have a smaller size within the range surrounded by the screw 66, which results in a limited cross-sectional area of the engaging piece 64 and cannot provide a good braking effect.

Disclosure of Invention

In view of the foregoing problems of the prior art, an object of the present utility model is to provide a power-off brake, which can select a group of brake pads with a larger cross-sectional area to provide a good braking effect.

In order to achieve the above purpose, the technical means adopted by the utility model is to design a power-off brake, which comprises:

an armature seat, a first end surface of which is provided with an extending wall, wherein the extending wall is arranged along the periphery of the first end surface and extends along the axial direction of the armature seat;

the end cover is fixedly connected to the extending wall of the armature seat and is arranged at intervals with the first end face of the armature seat;

an armature plate superposed on the first end face of the armature seat;

a pair of contact pieces arranged between the armature plate and the end cover.

In the power-off brake:

the two opposite ends of the armature seat can be the first end face and the second end face respectively, a through hole is formed between the first end face and the second end face in a penetrating way, and an inner flange is arranged on a hole wall surrounding the through hole;

the power-off brake can further comprise an elastic piece, wherein the elastic piece is arranged in the through hole of the armature seat, and two ends of the elastic piece are respectively propped against the inner flange of the armature seat and the armature plate.

The elastic member can be a compression spring.

In the power-off brake:

the armature seat can be further provided with at least one limiting concave part which is concavely formed on the extending wall and extends along the axial direction of the armature seat;

at least one limiting convex part can be arranged at one periphery of the armature plate and respectively protrudes into the at least one limiting concave part of the armature seat, so that the armature plate can move along the axial direction of the armature seat and cannot rotate relative to the armature seat.

The end cover and the extension wall of the armature seat can be mutually clamped and fixed in a concave-convex matching mode.

In the power-off brake, the armature seat can further have at least one clamping convex portion, the at least one clamping convex portion is arranged at the end edge of the extension wall, the end cover can further be provided with at least one clamping concave portion, and the at least one clamping convex portion of the armature seat correspondingly protrudes into the at least one clamping concave portion.

The end cover and the extension wall of the armature seat can be fixedly connected with each other in a welding, riveting or tight fit mode.

By the design, the end cover is fixedly connected with the armature seat through the extending wall, so that the area occupied by the connecting part of the end cover and the armature seat (namely the extending wall) on the first end face of the armature seat can be greatly reduced, and the large cross-sectional area can be selected for making the sheet group when the power-off brake is manufactured, so that the power-off brake has good braking effect.

Drawings

Fig. 1 is a perspective view of the present utility model.

Fig. 2 is an exploded perspective view of the present utility model.

Fig. 3 is a side cross-sectional view of the present utility model.

Fig. 4 is a top cross-sectional view of the present utility model.

Fig. 5 is a perspective view of the prior art.

Fig. 6 is an exploded perspective view of the prior art.

Detailed Description

The technical means adopted by the utility model to achieve the preset novel purpose are further described below by combining the attached drawings and the preferred embodiments of the utility model.

Referring to fig. 1 to 3, the electric brake of the present utility model includes an armature seat 10, an end cap 20, an armature plate 30, a pair of pads 40 and an elastic member 50.

The armature seat 10 is generally in a short column shape and has a first end face and a second end face at opposite ends, a through hole 11 is formed between the first end face and the second end face, and an extending wall 12, at least one limit recess 13 and an inner flange 14 are disposed on the armature seat 10. The extension wall 12 is formed on a first end surface of the armature seat 10, and the extension wall 12 is disposed along a periphery of the first end surface and extends along an axial direction of the armature seat 10 along an extending direction of the through hole 11. The at least one limiting recess 13 is concavely formed on the extending wall 12 and also extends along the axial direction of the armature seat 10. The inner flange 14 is formed protruding on a wall of the hole surrounding the through hole 11.

The end cover 20 is fixedly connected to the extension wall 12 of the armature seat 10 and is spaced apart from the first end surface of the armature seat 10, so that a receiving space is formed by the first end surface of the armature seat 10, the extension wall 12 of the armature seat 10 and the end cover 20, and the at least one limiting recess 13 of the armature seat 10 is communicated with the receiving space. Specifically, the end cover 20 and the extension wall 12 of the armature seat 10 can be fastened and fixed with each other in a concave-convex fit manner, and the end cover 20 and the extension wall 12 of the armature seat 10 can be further fastened and fixed with each other in a welding, riveting, tight fit … … manner, etc.

In the embodiment of the utility model, the armature seat 10 further has at least one locking protrusion 15, the at least one locking protrusion 15 is disposed at an end edge of the extension wall 12, the end cover 20 is further provided with at least one locking recess 21, and the at least one locking protrusion 15 of the armature seat 10 correspondingly protrudes into the at least one locking recess 21 to fix the end cover 20 and the armature seat 10 to each other.

The armature plate 30 is disposed in the accommodating space and is stacked on the first end surface of the armature seat 10, at least one limiting protrusion 31 is disposed at a periphery of the armature plate 30, and the at least one limiting protrusion 31 protrudes into the at least one limiting recess 13 of the armature seat 10, so that the armature plate 30 can only move along the axial direction of the armature seat 10 and cannot rotate relative to the armature seat 10.

The coming sheet set 40 is disposed in the accommodating space and located between the armature plate 30 and the end cover 20.

The elastic member 50 is disposed in the through hole 11 of the armature seat 10, and two ends of the elastic member 50 respectively abut against the inner flange 14 of the armature seat 10 and the armature plate 30, and in the specific embodiment of the utility model, the elastic member 50 is a compression spring.

When the power-off brake is arranged at the rotating shaft of a speed changer or a motor for use, in the power-on state, the armature seat 10 can generate magnetic force to attract the armature plate 30, so that the armature plate 30 compresses the elastic piece 50, and the switch sheet group 40 can move at the moment; in the power-off state, the elastic member 50 will push the armature plate 10 against the end cover 20, so that the brake pad set 40 is clamped between the armature plate 30 and the end cover 20, thereby generating braking effect on the motor or the transmission.

The electric brake of the present utility model has the advantage that the end cap 20 is fixedly connected to the armature seat 10 via the extension wall 12, so that the area occupied by the connection portion between the end cap 20 and the armature seat 10 (i.e. the extension wall 12) on the first end surface of the armature seat 10 can be greatly reduced, and the electric brake of the present utility model has good braking effect due to the large cross-sectional area of the sheet group 40 during manufacturing the electric brake.

The foregoing description is only illustrative of the preferred embodiment of the present utility model, and is not intended to limit the utility model to the particular embodiment disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a outage brake, its includes an armature seat, an end cover, an armature board and one comes the sheet group, its characterized in that:

an extension wall is formed on a first end face of the armature seat, is arranged along the periphery of the first end face and extends along the axial direction of the armature seat;

the end cover is fixedly connected to the extension wall of the armature seat and is arranged at intervals with the first end face of the armature seat;

the armature plate is superposed on the first end face of the armature seat;

the coming sheet group is arranged between the armature plate and the end cover.

2. The electric brake of claim 1, wherein:

the two opposite ends of the armature seat are respectively provided with a first end face and a second end face, a through hole is formed between the first end face and the second end face in a penetrating way, and an inner flange is arranged on a hole wall surrounding the through hole;

the power-off brake further comprises an elastic piece, wherein the elastic piece is arranged in the through hole of the armature seat, and two ends of the elastic piece are respectively propped against the inner flange of the armature seat and the armature plate.

3. The electric brake of claim 2, wherein the resilient member is a compression spring.

4. A power-off brake as claimed in any one of claims 1 to 3, wherein:

the armature seat is further provided with at least one limiting concave part which is concavely formed on the extending wall and extends along the axial direction of the armature seat;

at least one limiting convex part is arranged at one periphery of the armature plate and protrudes into the at least one limiting concave part of the armature seat respectively, so that the armature plate can move along the axial direction of the armature seat and cannot rotate relative to the armature seat.

5. A brake according to any one of claims 1 to 3 wherein the end cap and the extending wall of the armature seat are secured in place with a male-female fit.

6. The brake of claim 5, wherein the armature seat further comprises at least one engaging protrusion, the at least one engaging protrusion is disposed at an end edge of the extension wall, the end cover further comprises at least one engaging recess, and the at least one engaging protrusion of the armature seat correspondingly protrudes into the at least one engaging recess.

7. A brake according to any one of claims 1 to 3 wherein the end cap and the extending wall of the armature seat are secured to each other by welding, riveting or a tight fit.