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 falling brake device, which relates to the technical field of elevator auxiliary equipment and comprises an elevator car and tracks, wherein the tracks are symmetrically arranged on the left side and the right side of the elevator car and are 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 connected with the tracks in a rolling manner, the track wheels on the upper side and the lower side are connected with a support plate, the track wheels are rotatably connected with the support plate, a brake rack plate is fixedly clamped with a brake gear disc so as to prevent the elevator car from continuously moving downwards, the brake effect is realized, an acceleration sensor drives a screw rod to rotate through a driving motor, a nut drives the left side support plate and the right side support plate to simultaneously move inwards through a push rod, the support plate drives the brake gear disc to move towards the brake rack, avoid appearing skidding, effectively improved the braking effect of elevator, stability 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. The utility model provides an elevator brake equipment that falls, includes elevator car (1) and track (7), its characterized in that, track (7) symmetry is installed in elevator car (1) left and right sides and with elevartor shaft lateral wall fixed connection, the symmetry sets up rail wheel (16) about elevator car (1) left and right sides, rail wheel (16) and track (7) roll connection, upper and lower both sides rail wheel (16) joint support board (19), rail wheel (16) rotate with backup pad (19) and are connected, backup pad (19) are connected through pushing mechanism with elevator car (1) lateral wall, one side that track (7) kept away from rail wheel (16) sets up braking rack plate (2), braking rack plate (2) and track (7) lateral wall sliding connection, set up logical groove (8) in track (7), be provided with a plurality of promotion braking rack plate (2) in track (8) and carry out the drive of position control at the horizontal direction The mechanism, rail wheel (16) fixed connection runner (17), runner (17) are rotated through belt (18) and are connected runner two (4), runner two (4) and brake gear dish (3) fixed connection, backup pad (19) middle part sets up gyro wheel (12), gyro wheel (12) and backup pad (19) fixed connection, upper and lower both sides brake gear dish (3) rotate joint support pole (27) respectively, the one end and gyro wheel (12) of brake gear dish (3) are kept away from in bracing piece (27) are rotated and are connected, elevator car (1) left and right sides wall top symmetry sets up acceleration sensor (9), acceleration sensor (9) are connected with actuating mechanism through the internal control circuit.

2. An elevator falling brake device according to claim 1, characterized in that the driving mechanism comprises 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 brake rack plate (2).

3. The elevator falling brake device as claimed in claim 1 or 2, characterized in that the pushing mechanism comprises a screw rod (25), the top end of the screw rod (25) is fixedly connected with a driving motor (20), the driving motor (20) is connected with the acceleration sensor (9) through an internal control circuit, the screw threads of the upper side and the lower side of the screw rod (25) are opposite in direction, nuts (23) are symmetrically arranged on the surface of the screw rod (25), the nuts (23) are movably connected with push rods (26), and one end of each push rod (26) far away from the nut (23) is movably connected with the support plate (19).

4. The elevator falling brake device as claimed in claim 3, characterized in that the supports (21) are symmetrically arranged on the left and right side walls of the elevator car (1) from top to bottom, and the upper and lower ends of the screw (25) are rotatably connected with the supports (21).

5. The elevator falling brake device according to claim 4, characterized in that the left and right side walls of the elevator car (1) are symmetrically provided with limiting grooves (24), the nut (23) is fixedly connected with a limiting seat (22), and the limiting seat (22) is slidably connected with the limiting grooves (24).

6. An elevator falling brake device according to claim 5, characterized in that 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 of the limiting rod (11) far away from the limiting sleeve (10) is fixedly connected with the support plate (19).

7. An elevator falling brake device according to claim 6, characterized in that the left and right side walls of the elevator car (1) are provided with clamping plates (13) which are matched with the rail wheels (16) in a vertical symmetry manner.