CN112850418A

CN112850418A - Elevator falling brake device

Info

Publication number: CN112850418A
Application number: CN202110234918.2A
Authority: CN
Inventors: 沈姝君; 曾腾; 吴小平
Original assignee: Hangzhou Vocational and Technical College
Current assignee: Hangzhou Vocational and Technical College
Priority date: 2021-03-03
Filing date: 2021-03-03
Publication date: 2021-05-28

Abstract

The invention discloses an elevator fall braking device, which relates to the technical field of elevator auxiliary equipment, and includes an elevator car and a track. The track is symmetrically installed on the left and right sides of the elevator car and is fixedly connected with the side wall of the elevator shaft. The left and right sides of the car are symmetrically arranged up and down with track wheels, the track wheels are connected with the track in a rolling connection, the track wheels on the upper and lower sides are connected with the support plates, the track wheels are rotatably connected with the support plates, and the brake rack plate is connected with the brake gear plate. It is clamped and fixed so as to prevent the elevator car from continuing to move downward to achieve the braking effect. The acceleration sensor drives the screw to rotate through the drive motor, and the nut drives the left and right support plates to move inward at the same time through the push rod. The plate drives the brake gear plate to move to the brake rack plate through the support rod, which increases the clamping degree of the brake gear plate to the brake rack plate, avoids slippage, effectively improves the braking effect of the elevator, and stabilizes the elevator. Sex is higher.

Description

Elevator falling brake device

Technical Field

The invention relates to the technical field of elevator auxiliary equipment, in particular to an elevator falling brake device.

Background

Elevator means a permanent transportation device serving a number of specific floors in a building, the car of which travels on at least two rigid tracks running perpendicular to the horizontal or at an angle of inclination of less than 15 ° to the vertical, and a vertical lift elevator having a car which travels between at least two rigid guide rails running perpendicular or at an angle of inclination of less than 15 °. The size and the structural form of the car are convenient for passengers to access or load and unload goods.

In recent years, accidents of accidental falling of the lift car still occur in the running process of the lift, and the existing falling brake devices are complex in design and low in reliability, so that the design of a safe and reliable falling brake device is very important.

Disclosure of Invention

The invention aims to provide an elevator falling brake device to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

an elevator falling brake device comprises an elevator car and a track, wherein the track is symmetrically arranged on the left side and the right side of the elevator car and fixedly connected with the side wall of an elevator shaft, the left side and the right side of the elevator car are symmetrically provided with track wheels which are in rolling connection with the track, the upper side and the lower side of the elevator car are connected with a support plate, the track wheels are rotatably connected with the support plate, the support plate is connected with the side wall of the elevator car through a pushing mechanism, one side of the track, away from the track wheels, is provided with a braking rack plate, the braking rack plate is in sliding connection with the side wall of the track, a through groove is arranged in the track, a plurality of driving mechanisms for pushing the braking rack plate to perform position adjustment in the horizontal direction are arranged in the track, the track wheels are fixedly connected with a first rotating wheel, the, the elevator car left and right side wall top symmetry sets up acceleration sensor, acceleration sensor passes through internal control circuit and is connected with actuating mechanism.

As a further scheme of the invention: the driving mechanism comprises a hydraulic driving piece, the hydraulic driving piece is connected with a hydraulic telescopic rod, and the tail end of the hydraulic telescopic rod is fixedly connected with the brake rack plate.

As a still further scheme of the invention: the pushing mechanism comprises a screw rod, the top end of the screw rod is fixedly connected with a driving motor, the driving motor is connected with an acceleration sensor through an internal control circuit, the thread directions of the upper side and the lower side of the screw rod are opposite, nuts are symmetrically arranged on the surface of the screw rod, the nuts are movably connected with a push rod, and one end, far away from the nuts, of the push rod is movably connected with a support plate.

As a still further scheme of the invention: the elevator car left and right sides wall longitudinal symmetry sets up the support, both ends rotate with the support to be connected about the screw rod.

As a still further scheme of the invention: the elevator car left and right sides wall symmetry sets up the spacing groove, nut fixed connection spacing seat, spacing seat and spacing groove sliding connection.

As a still further scheme of the invention: the elevator car left and right sides wall below fixed mounting stop sleeve, set up the gag lever post in the stop sleeve, gag lever post and stop sleeve sliding connection, the gag lever post is kept away from stop sleeve's one end and backup pad fixed connection.

As a still further scheme of the invention: the elevator car left and right sides wall longitudinal symmetry is provided with the cardboard with rail wheel matched with.

Compared with the prior art, the invention has the beneficial effects that: the utility model provides an elevator brake equipment that falls, is in when the state of falling when elevator car, acceleration sensor passes through control scheme and actuating mechanism and promotes the braking rack board and removes to braking toothed disc department, thereby braking rack board and braking toothed disc joint are fixed prevents elevator car continuation downstream, realizes the braking effect, acceleration sensor passes through driving motor and drives the screw rod rotation, the nut passes through the push rod and drives the left and right sides backup pad and remove to the inboard simultaneously, the backup pad passes through the bracing piece and drives the braking toothed disc and remove to braking toothed disc department, and the chucking degree of increase braking toothed disc to the braking rack board avoids appearing skidding, has effectively improved the braking effect of elevator, and stability is higher.

Drawings

Fig. 1 is a schematic structural diagram of an elevator falling brake device.

Fig. 2 is an enlarged schematic structural view of an elevator falling brake device at a point a in fig. 1.

Fig. 3 is a structural schematic view of a braking rack plate in an elevator falling brake device.

Fig. 4 is a schematic structural view of a belt in an elevator fall brake device.

In the figure: 1-an elevator car; 2-braking rack plate; 3-braking the gear disc; 4-rotating wheel two; 5-a support rod; 6-braking rack plate; 7-orbit; 8-through grooves; 9-an acceleration sensor; 10-a limit sleeve; 11-a limiting rod; 12-a roller; 13-a clamping plate; 14-hydraulic telescopic rod; 15-a hydraulic drive; 16-a rail wheel; 17-a first rotating wheel; 18-a belt; 19-a support plate; 20-a drive motor; 21-a support; 22-a limiting seat; 23-a nut; 24-a limit groove; 25-screw rod; 26-a push rod; 27-support bar.

Detailed Description

The technical solution of the present invention will be described in further detail with reference to specific embodiments.

Example 1

Referring to fig. 1-3, an elevator falling brake device comprises an elevator car 1 and rails 7, wherein the rails 7 are symmetrically installed on the left and right sides of the elevator car 1 and fixedly connected with the sidewall of an elevator shaft, rail wheels 16 are symmetrically arranged on the left and right sides of the elevator car 1 from top to bottom, the rail wheels 16 are in rolling connection with the rails 7, the rail wheels 16 on the upper and lower sides are connected with supporting plates 19, the rail wheels 16 are rotatably connected with the supporting plates 19, the supporting plates 19 are connected with the sidewall of the elevator car 1 through pushing mechanisms, a braking rack plate 2 is arranged on one side of the rails 7 far away from the rail wheels 16, the braking rack plate 2 is in sliding connection with the sidewall of the rails 7, a through groove 8 is arranged in the rail 7, a plurality of driving mechanisms for pushing the braking rack plate 2 to perform position adjustment in the horizontal direction are arranged in the rail 8, the first rotating wheel 17 is rotatably connected with a second rotating wheel 4 through a belt 18, the second rotating wheel 4 is fixedly connected with a brake gear disc 3, the brake gear disc 3 can be connected with a brake rack plate 2 in a clamped mode to achieve a braking effect, rollers 12 are arranged in the middle of a supporting plate 19, the rollers 12 are fixedly connected with the supporting plate 19, the brake gear disc 3 is respectively rotatably connected with supporting rods 27 at the upper side and the lower side, one end, far away from the brake gear disc 3, of each supporting rod 27 is rotatably connected with the corresponding roller 12, acceleration sensors 9 are symmetrically arranged above the left side wall and the right side wall of the elevator car 1, the acceleration sensors 9 are connected with a driving mechanism through internal control lines, when the elevator car 1 is in a falling state, the acceleration sensors 9 push the brake rack plate 2 to move towards the brake gear disc 3 through control lines and driving mechanisms, and the brake rack plate 2 is fixedly connected with the brake gear, the braking effect is realized.

Further, in order to push the braking rack plate 2 to move towards the braking gear disc 3, in this embodiment, the driving mechanism includes a hydraulic driving member 15, the hydraulic driving member 15 is connected with a hydraulic telescopic rod 14, and the end of the hydraulic telescopic rod 14 is fixedly connected with the braking rack plate 2.

Example 2

Referring to fig. 1-4, on the basis of embodiment 1, in order to improve the braking effect, the pushing mechanism includes a screw rod 25, the top end of the screw rod 25 is fixedly connected to a driving motor 20, the driving motor 20 is connected to an acceleration sensor 9 through an internal control circuit, the thread directions of the upper and lower sides of the screw rod 25 are opposite, nuts 23 are symmetrically disposed on the surface of the screw rod 25, the nuts 23 can move up and down in the vertical direction along with the rotation of the screw rod 25, the nuts 23 are movably connected to a push rod 26, one end of the push rod 26 away from the nuts 23 is movably connected to a support plate 19, the acceleration sensor 9 drives the screw rod 25 to rotate through the driving motor 20, the nuts 23 drive the left and right support plates 19 to move inward at the same time through the push rod 26, the support plate 19 drives the braking gear disc 3 to move to the, the clamping degree of the brake gear disc 3 to the brake rack plate 2 is increased, and slipping is avoided.

Further, in order to fix the screw 23, in this embodiment, the supports 21 are disposed on the left and right side walls of the elevator car 1 in an up-down symmetrical manner, and the upper and lower ends of the screw 25 are rotatably connected to the supports 21.

Further, in order to improve the stability of the nut 23 moving up and down in the vertical direction, in this embodiment, the left and right side walls of the elevator car 1 are symmetrically provided with the limiting grooves 24, the nut 23 is fixedly connected with the limiting seat 22, and the limiting seat 22 is slidably connected with the limiting grooves 24.

Further, in order to improve the stability of the support plate 19 moving left and right in the horizontal direction, in this embodiment, a limiting sleeve 10 is fixedly installed below the left and right side walls of the elevator car 1, a limiting rod 11 is arranged in the limiting sleeve 10, the limiting rod 11 is connected with the limiting sleeve 10 in a sliding manner, and one end, away from the limiting sleeve 10, of the limiting rod 11 is fixedly connected with the support plate 19.

Further, in order to improve the braking effect of the device, in this embodiment, the clamping plates 13 matched with the rail wheels 16 are symmetrically arranged on the left side wall and the right side wall of the elevator car 1 in the up-down direction, and in the process that the supporting plate 19 drives the rail wheels 16 on the upper side and the lower side to move towards the elevator car 1, the clamping plates 13 are tightly matched with the rail wheels 16 to prevent the rail wheels 16 from continuously rotating.

The working principle of the invention is as follows: the utility model provides an elevator brake equipment that falls, is in when the state of falling when elevator car 1, acceleration sensor 9 promotes braking rack plate 2 through control scheme and actuating mechanism and removes to 3 departments of brake gear dish, thereby braking rack plate 2 prevents elevator car 1 continuation downstream with 3 joints of brake gear dish are fixed, realizes the braking effect of braking, acceleration sensor 9 drives screw rod 25 through driving motor 20 and rotates, nut 23 drives left and right sides backup pad 19 through push rod 26 and removes to the inboard simultaneously, backup pad 19 drives brake gear dish 3 through bracing piece 5 and removes to 2 departments of brake gear dish, and increase brake gear dish 3 avoids appearing skidding to the chucking degree of brake gear dish 2.

While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. An elevator fall braking device, comprising an elevator car (1) and a rail (7), characterized in that the rail (7) is symmetrically installed on the left and right sides of the elevator car (1) and is connected to the side wall of the elevator shaft. Fixed connection, the left and right sides of the elevator car (1) are provided with track wheels (16) symmetrically up and down, the track wheels (16) are rollingly connected with the track (7), and the track wheels (16) on the upper and lower sides are connected and supported Plate (19), the track wheel (16) is rotatably connected with the support plate (19), the support plate (19) is connected with the side wall of the elevator car (1) by a pushing mechanism, and the track (7) is away from the track One side of the wheel (16) is provided with a braking rack plate (2), the braking rack plate (2) is slidably connected to the side wall of the track (7), and a through groove (8) is arranged in the track (7). , the rail (8) is provided with a plurality of drive mechanisms for pushing the brake rack plate (2) to adjust the position in the horizontal direction, the rail wheel (16) is fixedly connected to the runner one (17), the rotation The first wheel (17) is rotatably connected to the second wheel (4) through the belt (18), the second wheel (4) is fixedly connected with the brake gear disc (3), and the middle part of the support plate (19) is provided with a roller (12). ), the roller (12) is fixedly connected with the support plate (19), the brake gear discs (3) on the upper and lower sides are respectively rotated and connected to the support rod (27), and the support rod (27) is far away from the brake gear disc One end of (3) is rotatably connected to the roller (12), an acceleration sensor (9) is symmetrically arranged above the left and right side walls of the elevator car (1), and the acceleration sensor (9) is connected to the drive mechanism through an internal control circuit.

2 . The elevator fall braking device according to claim 1 , wherein the driving mechanism comprises a hydraulic driving member ( 15 ), the hydraulic driving member ( 15 ) is connected to a hydraulic telescopic rod ( 14 ), and the The end of the hydraulic telescopic rod (14) is fixedly connected with the brake rack plate (2).

3. An elevator fall braking device according to claim 1 or 2, wherein the pushing mechanism comprises a screw (25), and the top end of the screw (25) is fixedly connected with the driving motor (20), so that the The drive motor (20) is connected to the acceleration sensor (9) through an internal control circuit, the thread directions on the upper and lower sides of the screw rod (25) are opposite, and a nut (23) is symmetrically arranged on the surface of the screw rod (25), and the nut (23) ) is movably connected to the push rod (26), and the end of the push rod (26) away from the nut (23) is movably connected to the support plate (19).

4. An elevator fall braking device according to claim 3, characterized in that, the left and right side walls of the elevator car (1) are provided with supports (21) symmetrically up and down, and the upper and lower ends of the screw rod (25) It is rotatably connected with the support (21).

5 . The elevator fall braking device according to claim 4 , wherein limit grooves ( 24 ) are symmetrically arranged on the left and right side walls of the elevator car ( 1 ), and the nut ( 23 ) is fixedly connected to limit the 5 . A seat (22), the limit seat (22) is slidably connected with the limit groove (24).

6. An elevator fall braking device according to claim 5, characterized in that a limit sleeve (10) is fixedly installed under the left and right side walls of the elevator car (1), and the limit sleeve ( 10) A limit rod (11) is provided inside, the limit rod (11) is slidably connected with the limit sleeve (10), and one end of the limit rod (11) away from the limit sleeve (10) is connected to the support The plate (19) is fixedly connected.

7 . The elevator fall braking device according to claim 6 , wherein the left and right side walls of the elevator car ( 1 ) are symmetrically provided up and down with clamping plates ( 13 ) matched with the rail wheels ( 16 ). 8 . .