Elevator hoist machine with auxiliary braking component

Abstract

This utility model relates to an elevator traction machine with an auxiliary braking component. The elevator traction machine is equipped with a main braking system, which includes a brake disc and a brake arm, and an auxiliary braking system. The auxiliary braking system includes a fixedly mounted vertical plate. A set of long connecting rods arranged in an "X" shape are hinged to the upper part of the vertical plate. The free ends of each long connecting rod are hinged to short connecting rods. The free ends of two short connecting rods overlap and are connected by a pin. An electric push rod is fixedly mounted on the lower part of the vertical plate. The free end of the piston rod of the electric push rod is connected to the pin. A waist-shaped groove is opened on the vertical plate, and the pin passes through the waist-shaped groove. By electrically connecting the electromagnetic brake and the electric push rod to the same starting power source, the main braking system and the auxiliary braking system work synchronously, avoiding the problem of reduced braking effect caused by spring fatigue in the main braking system and wear on the inner side of the brake arm. This device is suitable for industrial production and has strong practicality.

Description

Technical Field

[0001] This utility model belongs to the technical field of elevator traction machines, and particularly relates to an elevator traction machine with auxiliary braking components. Background Technology

[0002] A patent entitled "Traction Mechanism Brake" with application number CN202010264278.5 is disclosed in the existing Chinese patent database. The traction mechanism brake includes a braking state and a release state. In the braking state, the brake shoe is in complete contact with the braking surface; in the release state, the brake shoe is completely separated from the braking surface. It also includes a displacement measuring device, comprising a first displacement sensor mounted on the brake arm. The first displacement sensor measures the real-time release distance between the brake shoe and the braking surface. The first displacement sensor is connected to a control device and transmits the real-time release distance between the brake shoe and the braking surface in the release state to the control device. The control device includes a preset module and a comparison module. The preset module presets a minimum release distance between the brake shoe and the braking surface, and the comparison module compares the real-time release distance with the minimum release distance. The control device controls the release device to operate based on the comparison result.

[0003] In the prior art, the braking of elevator traction machines is mostly accomplished by the cooperation of electromagnetic brakes, springs and brake arms. However, after long-term use, the fatigue of the springs and the wear on the inner side of the brake arms can affect the braking effect on the brake disc to a certain extent. Therefore, this paper aims to propose an elevator traction machine with auxiliary braking components, which avoids the problem of reduced braking effect caused by the fatigue of the main braking system by setting up an auxiliary braking system. Utility Model Content

[0004] The technical problem to be solved by this utility model is how to ensure the braking effect of the elevator traction machine after long-term operation. In order to solve the above-mentioned technical problem, this utility model provides an elevator traction machine with auxiliary braking components.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] An elevator traction machine with auxiliary braking components is provided. The elevator traction machine is equipped with a main braking system, which includes a brake disc and a brake arm. The brake arm is controlled by an electromagnetic brake. It also includes an auxiliary braking system, which includes a fixedly mounted vertical plate. A set of long connecting rods arranged in an "X" shape are hinged to the upper part of the vertical plate. The free end of each long connecting rod is hinged to a short connecting rod. The free ends of two short connecting rods overlap and are connected by a pin. An electric push rod is fixedly mounted on the lower part of the vertical plate. The free end of the piston rod of the electric push rod is connected to the pin. A vertical waist-shaped groove is opened on the vertical plate. The pin passes through the waist-shaped groove. The upper free ends of the two long connecting rods are connected to a stop wheel component, which abuts against the inner wall of the brake disc.

[0007] Compared with the prior art, the beneficial effects of this utility model are: due to the setting of the auxiliary braking system, by electrically connecting the electromagnetic brake and the electric push rod to the same starting power source, the main braking system and the auxiliary braking system work synchronously, avoiding the problem of reduced braking effect caused by spring fatigue and wear on the inner side of the brake arm in the main braking system. This device is suitable for industrial production and has strong practicality.

[0008] As a preferred embodiment, the stop wheel component includes a connecting shaft that passes through the free end of the long connecting rod, a stop wheel body is sleeved on the inner free end of the connecting shaft, the outer peripheral surface of the stop wheel body abuts against the inner peripheral surface of the brake disc, and a limit sleeve is sleeved on the outer free end of the connecting shaft.

[0009] As a preferred embodiment, the system includes a mounting base, with the elevator traction machine fixedly connected to the upper surface of the mounting base, and the bottom of the vertical plate welded to the mounting base.

[0010] As a preferred embodiment, a hinge seat is fixedly connected to the upper surface of the mounting base, and a set of hinge blocks are provided on the hinge seat, with the lower end of each brake arm hinged to the corresponding hinge block. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 for Figure 1 Larger image of the partial release at point A in the middle.

[0013] In the diagram: 1 Elevator traction machine, 2 Main braking system, 3 Brake disc, 4 Brake arm, 5 Electromagnetic brake, 6 Auxiliary braking system, 7 Vertical plate, 8 Long connecting rod, 9 Short connecting rod, 10 Pin, 11 Electric push rod, 12 Waist groove, 13 Stop wheel assembly, 1301 Connecting shaft, 1302 Stop wheel body, 1303 Limit sleeve, 14 Mounting seat, 15 Hinge seat, 1501 Hinge block. Detailed Implementation

[0014] The technical solution of this application will be further described below with reference to the accompanying drawings and embodiments.

[0015] like Figure 1-2 As shown, an elevator traction machine with auxiliary braking components is provided. The elevator traction machine 1 is equipped with a main braking system 2, which includes a brake disc 3 and a brake arm 4. The brake arm 4 is controlled by an electromagnetic brake 5. It also includes an auxiliary braking system 6, which includes a fixedly installed vertical plate 7. The upper part of the vertical plate 7 is hinged with a set of long connecting rods 8 arranged in an "X" shape. The free end of each long connecting rod 8 is hinged with a short connecting rod 9. The free ends of the two short connecting rods 9 overlap and are connected by a pin 10. The lower part of the vertical plate 7 is fixedly equipped with an electric push rod 11. The free end of the piston rod of the electric push rod 11 is connected to the pin 10. The vertical plate 7 has a vertical waist-shaped groove 12. The pin 10 is installed through the waist-shaped groove 12. The upper free ends of the two long connecting rods 8 are connected to a stop wheel component 13. The stop wheel component 13 abuts against the inner wall of the brake disc 3. The stop wheel component 13 includes a connecting shaft 1301 inserted through the free end of the long connecting rod 8. A stop wheel body 1302 is sleeved on the inner free end of the connecting shaft 1301. The outer circumferential surface of the stop wheel body 1302 abuts against the inner circumferential surface of the brake disc 3. A limit sleeve 1303 is sleeved on the outer free end of the connecting shaft 1301. It includes a mounting base 14, with the elevator traction machine 1 fixedly mounted on the upper surface of the mounting base 14. The bottom of the upright plate 7 is welded to the mounting base 14. A hinge seat 15 is fixedly connected to the upper surface of the mounting base 14. A set of hinge blocks 1501 is provided on the hinge seat 15, and the lower end of each brake arm 4 is hinged to the corresponding hinge block 1501.

[0016] When this utility model is in operation, the main braking system 2 works as follows: the electromagnetic brake 5 controls the brake arm 4 to approach the outer peripheral surface of the brake disc 3, forming contact and braking. This process is existing technology and will not be described in detail here. The auxiliary braking system 6 works as follows: after the electric push rod 11 is energized, the piston rod extends outward, driving the pin 10 connected to the free end to move vertically upward along the direction of the waist-shaped groove 12. At the same time as the piston rod extends, the short connecting rod 9 swings towards the outside of the vertical plate 7, while the free end of the long connecting rod 8 correspondingly drives the stop wheel component 13 to swing towards the inner wall of the brake disc 3, so that the stop wheel body 1302 abuts against the inner peripheral surface of the brake disc 3, thereby assisting in completing the braking.

[0017] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. An elevator traction machine with an auxiliary braking component, wherein the elevator traction machine (1) is provided with a main braking system (2), the main braking system (2) including a brake disc (3) and a brake arm (4), the brake arm (4) being controlled by an electromagnetic brake (5), characterized in that: It also includes an auxiliary braking system (6), which includes a fixedly mounted upright plate (7). The upper part of the upright plate (7) is hinged with a set of long connecting rods (8) arranged in an "X" shape. The free end of each long connecting rod (8) is hinged with a short connecting rod (9). The free ends of the two short connecting rods (9) overlap and are connected by a pin (10). The lower part of the upright plate (7) is fixedly mounted with an electric push rod (11). The free end of the piston rod of the electric push rod (11) is connected to the pin (10). The upright plate (7) has a vertical waist-shaped groove (12). The pin (10) passes through the waist-shaped groove (12). The upper free ends of the two long connecting rods (8) are connected with a stop wheel component (13). The stop wheel component (13) abuts against the inner wall of the brake disc (3).

2. An elevator traction machine with an auxiliary braking component according to claim 1, characterized in that: The stop wheel component (13) includes a connecting shaft (1301) inserted through the free end of the long connecting rod (8), a stop wheel body (1302) sleeved on the inner free end of the connecting shaft (1301), the outer peripheral surface of the stop wheel body (1302) abutting against the inner peripheral surface of the brake disc (3), and a limit sleeve (1303) sleeved on the outer free end of the connecting shaft (1301).

3. An elevator traction machine with an auxiliary braking component according to claim 2, characterized in that: It includes a mounting base (14), the elevator traction machine is fixedly mounted on the upper surface of the mounting base (14), and the bottom of the upright plate (7) is welded to the mounting base (14).

4. An elevator traction machine with an auxiliary braking component according to claim 3, characterized in that: The upper surface of the mounting base (14) is fixedly connected to a hinge base (15), and a set of hinge blocks (1501) are provided on the hinge base (15). The lower end of each brake arm (4) is hinged to the corresponding hinge block (1501).

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