CN216997434U - Block-type disc brake of traction machine - Google Patents

Abstract

A block-type disc brake of a tractor belongs to the technical field of elevator tractors. Contain the quiet iron core subassembly of arranging the installation in proper order, move iron core subassembly and brake disc, quiet iron core subassembly be equipped with coil pack and brake spring in the side that moves iron core subassembly one side towards, move iron core subassembly suit on the spacer, connecting bolt passes the hole after-fixing of quiet iron core subassembly and spacer in proper order on the hauler installation face, the brake disc be located and move between iron core subassembly and the hauler installation face and with the installation of hauler main shaft connection, move the iron core subassembly and form by two or more than two iron core concatenations that move, quiet iron core subassembly form by quiet iron core concatenation, the quantity of quiet iron core with move the iron core the same and the position corresponding. The advantages are that: the stopper is formed by two sets of or above arc quiet iron core and the combination of moving the iron core, and mutual noninterference between each group, and other quiet iron cores are not influenced when single quiet iron core operation to can improve the security of equipment operation.

Description

Block-type disc brake of traction machine

Technical Field

The utility model belongs to the technical field of elevator tractors, and particularly relates to a block-type tractor disc brake.

Background

The elevator traction machine is used for dragging the steel wire rope so as to drive the elevator car to move up and down in the hoistway in a reciprocating mode. A brake is generally provided on a hoisting machine to brake the hoisting machine. The structure of the brake has a great influence on the safety of the traction machine.

The structure of the conventional disc brake is shown in fig. 1, and the disc brake comprises a stationary iron core 1', a movable iron core assembly 2, a brake disc 3, a spacer 4, a coil assembly 5 and a brake spring 6, wherein the movable iron core assembly 2 is composed of a first movable iron core 2a and a second movable iron core 2b. The coil assembly 5 and the brake spring 6 are embedded in the static iron core 1 ', and the connecting bolt 7 sequentially penetrates through the static iron core 1' and the spacer 4 and then is fixed on the tractor mounting surface 8. The first movable iron core 2a and the second movable iron core 2b are sleeved on the spacer 4 and can axially move along the spacer 4, and the brake disc 3 is positioned between the first movable iron core 2a and the second movable iron core 2b and the tractor mounting surface 8 and is connected to the tractor main shaft 9 through a spline. The working principle of the structure brake is as follows: when the coil assembly 5 is energized, a magnetic circuit is formed between the static iron core 1 ' and the first and second movable iron cores 2a and 2b to generate electromagnetic force, the first and second movable iron cores 2a and 2b overcome the spring force of the brake spring 6 and move towards the static iron core 1 ', the static iron core 1 ' is attracted with the first and second movable iron cores 2a and 2b, the brake disc 3 is released, and the brake disc 3 rotates along with the main shaft 9 of the traction machine. When the coil assembly 5 is powered off, the first and second movable cores 2a and 2b press the brake disk 3 against the hoisting machine attachment surface 8 by the spring force of the brake spring 6, and at this time, the brake disk 3 stops rotating, and the hoisting machine main shaft 9 also stops rotating.

The safety specification of the manufacture and installation of the elevator of GB/T7588 and 2020 edition puts forward the requirements: the brake mechanics parts participating in braking the hoisting machine should be installed in at least two groups, and when one of the groups is not functioning, the other group should have sufficient braking force to brake the elevator. Although the movable iron cores 2a and 2b are already in two independent groups in the above brake, the static iron core 1' participating in braking is a part shared by the movable iron cores 2a and 2b, thereby causing the following problems: firstly, when the unilateral brake brakes, because the static iron core 1 'is a shared part, one side of the static iron core is kept in a braking state under the action of spring force, and the other side of the static iron core is not stressed because the spring force is counteracted by electromagnetic force, the two sides of the static iron core 1' are not stressed uniformly, and the service life of a connecting and guiding mechanism of the brake can be influenced; secondly, once the static iron core 1' is damaged or loosened, the two groups of brakes simultaneously lose braking torque, so that the braking function is lost, safety accidents are caused, and the structure of the brake needs to be further improved to improve the braking safety of the tractor.

In view of the above-mentioned prior art, the applicant has made an advantageous design, and the technical solutions described below have been made in this context.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a segmented disc brake of a traction machine, which has good braking effect, is safe to use and is convenient to maintain.

The utility model aims to achieve the aim, a block type traction machine disc brake comprises a static iron core assembly, a movable iron core assembly and a brake disc which are sequentially arranged, wherein a coil assembly and a brake spring are arranged in the side surface of the static iron core assembly facing to one side of the movable iron core assembly, the movable iron core assembly is sleeved on a spacer and moves along the axial direction of the spacer, an air gap is formed between the movable iron core assembly and the static iron core assembly, a connecting bolt sequentially penetrates through inner holes of the static iron core assembly and the spacer and then is fixed on a traction machine mounting surface, and the brake disc is positioned between the movable iron core assembly and the traction machine mounting surface and is connected with a traction machine main shaft, and the block type traction machine disc brake is characterized in that: the movable iron core assembly is formed by splicing two or more movable iron cores, the static iron core assembly is formed by splicing static iron cores, and the quantity of the static iron cores is the same as that of the movable iron cores and the positions of the static iron cores are corresponding to those of the movable iron cores.

In a specific embodiment of the present invention, the number of coil assemblies and brake springs provided in each stationary core is two or more.

In another specific embodiment of the present invention, the movable iron core assembly is formed by splicing a first movable iron core and a second movable iron core which are in two half disc shapes into a disc shape; the static iron core assembly is formed by splicing a first static iron core and a second static iron core which are in two half disc shapes into a disc shape.

In another specific embodiment of the present invention, the coil assembly has a cross-sectional shape of an elongated circular ring.

In another specific embodiment of the present invention, the fixed iron core assembly is screwed with the guide rods at intervals on the side surface facing to the side of the movable iron core assembly, and the movable iron core assembly is provided with positioning holes for the guide rods to penetrate through.

In another specific embodiment of the present invention, the movable iron core assembly is provided with a mounting hole, the spacer is disposed in the mounting hole, and one end of the spacer is screwed with the corresponding screw hole of the stationary iron core assembly.

In a further specific embodiment of the present invention, the spacer is formed with a step surface on an outer circumference at a position corresponding to the mounting hole of the movable core assembly, and the bush is mounted on the step surface.

Due to the adoption of the structure, compared with the prior art, the utility model has the beneficial effects that: the stopper is formed by two sets of or above arc quiet iron core and the combination of moving the iron core, and each mutual noninterference between organizing, and is completely independent, and other quiet iron cores are not influenced when single quiet iron core operation to can improve the security of equipment operation, when single quiet iron core breaks down, other quiet iron cores still can let the hauler stall, conveniently maintain and practiced thrift the replacement cost.

Drawings

Fig. 1 is a schematic structural view of a conventional disc brake for a traction machine.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a cross-sectional view of the present invention.

In the figure: 1. the device comprises a static iron core assembly, 11 guide rods, 1a first static iron core and 1b second static iron core; 1', a stationary core; 2. the movable iron core assembly comprises 21 positioning holes, 22 mounting holes, 2a first movable iron core and 2b second movable iron core; 3. a brake disc; 4. spacer bush, 41 step surface, 42 bushing; 5. a coil assembly; 6. a spring; 7. a connecting bolt; 8. a tractor mounting surface; 9. a main shaft of a traction machine.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings, but the embodiments are not limited to the technical solutions, and any changes in form and not in essence according to the present invention should be regarded as the protection scope of the present invention.

In the following description, any concept related to the directionality (or the directional nature) of up, down, left, right, front, and rear is intended to facilitate understanding by the public, and thus should not be construed as particularly limiting the technical solution provided by the present invention, with respect to the position state in which the drawings are being described.

Referring to fig. 2 to 3, the present invention relates to a segmented disc brake for a traction machine, which comprises a static iron core assembly 1, a moving iron core assembly 2 and a brake disc 3, which are sequentially arranged. The side surface of the static iron core component 1 facing to one side of the movable iron core component 2 is internally provided with a coil component 5 and a brake spring 6. The fixed iron core assembly 1 is provided with guide rods 11 at intervals on the side surface facing one side of the movable iron core assembly 2, and the movable iron core assembly 2 is provided with positioning holes 21 for the guide rods 11 to penetrate through. The movable iron core assembly 2 is sleeved on the spacer 4 and can move axially along the spacer 4. Specifically, the movable iron core assembly 2 is provided with a mounting hole 22, the spacer 4 is arranged in the mounting hole 22, and one end of the spacer 4 is screwed with the corresponding screw hole on the stationary iron core assembly 1. An air gap is formed between the movable iron core assembly 2 and the static iron core assembly 1. The connecting bolt 7 sequentially penetrates through inner holes of the static iron core assembly 1 and the spacer 4 and then is fixed on the tractor mounting surface 8, a step surface 41 is formed on the outer circumference of the spacer 4 at a position corresponding to the mounting hole 22 on the movable iron core assembly 2, a bushing 42 is mounted on the step surface, and the bushing 42 is made of a sliding bearing material, so that resistance is reduced when the movable iron core assembly 2 moves axially, and the operation is more flexible. The brake disc 3 is positioned between the movable iron core assembly 2 and the tractor mounting surface 8 and is connected and mounted with the tractor main shaft 9. Move iron core subassembly 2 and form by two or more than two the iron core concatenation that move, quiet iron core subassembly 1 form by the concatenation of quiet iron core, the quantity of quiet iron core with move the same and position of iron core and correspond. Each movable iron core and each static iron core are provided with independent holes for connecting bolts 7, the movable iron cores and the static iron cores do not interfere with each other, work independently, and are convenient to maintain and repair when faults occur. In this embodiment, the movable iron core assembly 2 is formed by splicing a first movable iron core 2a and a second movable iron core 2b in two half-disc shapes into a disc shape; the static iron core assembly 1 is formed by splicing a first static iron core 1a and a second static iron core 1b which are in a semi-circular disc shape into a circular disc shape.

Referring to fig. 2, the number of the coil assemblies 5 and the braking springs 6 in each stationary core is two or more, in this embodiment, the number of the coil assemblies 5 and the braking springs 6 in the first stationary core 1a and the second stationary core 1b is two, and a sufficient braking torque can be provided by a single-sided brake. When a single static iron core operates, the other static iron core is not influenced, so that the operation safety of the equipment can be improved. The cross-sectional shape of the coil assembly 5 is preferably an oblong ring.

The operation principle of the present invention will be explained below. When the coil assembly 5 is energized, a magnetic circuit is formed between the air gap between the stationary iron core assembly 1 and the movable iron core assembly 2, electromagnetic force is generated, the electromagnetic force overcomes the spring force of the braking spring 6, so that the first and second stationary iron cores 1a and 1b are correspondingly attracted with the first and second movable iron cores 2a and 2b, the air gap is transferred between the brake disc 3 and the movable iron core assembly 2, and the brake disc 3 rotates along with the rotation of the main shaft 9 of the traction machine. When the coil assembly 5 is powered off, the brake springs 6 on the first and second static iron cores 1a and 1b are pressed on the first and second movable iron cores 2a and 2b, the movable iron core assembly 2 and the tractor mounting surface 8 clamp the brake disc 3, an air gap is transferred between the static iron core assembly 1 and the movable iron core assembly 2, and the brake disc 3 and the tractor main shaft 9 stop rotating to play a braking role.

Claims (7)

1. The utility model provides a sectional type hauler disk brake contains quiet iron core assembly (1) of arranging the installation in proper order, moves iron core assembly (2) and brake disc (3), quiet iron core assembly (1) be equipped with coil pack (5) and brake spring (6) in the side of moving iron core assembly (2) one side towards, move iron core assembly (2) suit on spacer (4), along spacer (4) axial motion, move and be formed with the air gap between iron core assembly (2) and quiet iron core assembly (1), connecting bolt (7) pass the hole after-fixing of quiet iron core assembly (1) and spacer (4) on hauler installation face (8) in proper order, brake disc (3) be located and move between iron core assembly (2) and hauler installation face (8) and be connected the installation with hauler main shaft (9), its characterized in that: move iron core subassembly (2) and form by two or more than two movable iron core concatenations, quiet iron core subassembly (1) form by quiet iron core concatenation, the quantity of quiet iron core with move the same and position of iron core and correspond.

2. A segmented traction machine disc brake according to claim 1, wherein the number of coil assemblies (5) and brake springs (6) provided in each stationary core is two or more.

3. A segmented disc brake for traction machines according to claim 1, characterized in that the movable core assembly (2) is formed by splicing a first movable core (2a) and a second movable core (2b) into a disc shape; the static iron core assembly (1) is formed by splicing a first static iron core (1a) and a second static iron core (1b) which are in the shape of two semicircular discs.

4. A segmented traction machine disc brake according to claim 1, characterized in that the cross-sectional shape of the coil assembly (5) is an oblong ring.

5. The block type traction machine disc brake according to claim 1, wherein the fixed iron core assembly (1) is provided with guide rods (11) on the side surface facing one side of the movable iron core assembly (2) at intervals, and the movable iron core assembly (2) is provided with positioning holes (21) for the guide rods (11) to penetrate through.

6. The block type traction machine disc brake according to claim 1, wherein the movable iron core assembly (2) is provided with a mounting hole (22), the spacer bush (4) is arranged in the mounting hole (22), and one end of the spacer bush (4) is screwed with a corresponding screw hole on the static iron core assembly (1).

7. The segmented disc brake for a traction machine according to claim 6, wherein the spacer 4 is formed with a stepped surface 41 on an outer circumference at a position corresponding to the mounting hole 22 of the movable core assembly 2, and a bush 42 is mounted on the stepped surface.

Images