CN220703097U

CN220703097U - Car lifting machine contour limiting device for wind power generation tower

Info

Publication number: CN220703097U
Application number: CN202321587042.0U
Authority: CN
Inventors: 肖飞
Original assignee: Sanhe City Bulaisike General Machinery Equipment Co ltd
Current assignee: Sanhe City Bulaisike General Machinery Equipment Co ltd
Priority date: 2023-06-21
Filing date: 2023-06-21
Publication date: 2024-04-02
Anticipated expiration: 2033-06-21

Abstract

The utility model relates to the technical field of contour limiting of a car elevator, and discloses a contour limiting device of a car elevator for a wind power generation tower. This car lifting machine contour stop device for wind power generation pylon, control the electro-magnet through the PLC controller and stop work, spacing fixture block receives the effect of gravity to drop, when the hoist engine output appears rotating, spacing fixture block and spacing groove meshing, and then carry out spacingly to the brake pulley, at this moment, the hoist engine output appears rotating, the brake pulley receives the spacing of spacing fixture block, the output of hoist engine can't continue to rotate, thereby prevent when hoist engine inside brake breaks down, after the car one section distance of landing, the brake equipment of car bottom just can function, when the car door is opened, this kind of condition appears, cause personnel injured incident.

Description

Car lifting machine contour limiting device for wind power generation tower

Technical Field

The utility model relates to the technical field of contour limiting of a car elevator, in particular to a contour limiting device of a car elevator for a wind power generation tower.

Background

The elevator car usually drives the steel cable to be connected with pulleys in the pulley yoke welded at the top of the elevator car through a winch, and drives the steel cable to be wound through the winch so as to drive the elevator car to lift.

The wind power generation tower is power equipment for converting wind energy into energy and converting mechanical energy into electric energy, the height of a wind power generator of a common round tower barrel is usually 120-140 meters, and a lift car is usually arranged in the tower so as to send daily maintenance personnel into the top end of the wind power generation tower, thereby facilitating maintenance of the wind power generator by the maintenance personnel.

However, when the existing elevator profile of the elevator car does not normally have a limiting device, when the elevator car slides, the elevator car is usually braked and decelerated by means of a brake device installed at the bottom end of the elevator car, and the elevator car is stopped at the current height, so that personnel fall injury in the elevator car is avoided, when the elevator is stopped, the elevator car can be stopped after sliding slightly due to a certain free stroke of the elevator, when the internal brake of the elevator is failed, the brake device at the bottom end of the elevator car can operate after the elevator car slides for a certain distance, and if the elevator car door is opened, personnel injury safety accidents are easily caused when the situation occurs.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides the contour limiting device of the car elevator for the wind power generation tower, which has the advantages of preventing the car from sliding down for a certain distance when the brake in the hoist breaks down, avoiding the occurrence of the situation when the car door is opened, causing personnel injury safety accidents and the like, and solving the technical problems.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a car lifting machine profile stop device for wind power generation pylon, includes the casing, and a plurality of connecting holes have been seted up to casing outer wall bottom integrated into one piece's connecting plate and connecting plate top surface both ends symmetry, the inside cavity that is provided with one side and dissects "worker" shape of casing, the cavity middle-end rotatable coupling has the rotatory piece, rotatory piece both sides symmetry fixedly connected with two braking wheels, a plurality of spacing grooves have been seted up to braking wheel periphery circumference array, one of them the spacing groove orientation that the braking wheel was seted up is opposite with another the spacing groove orientation that the braking wheel was seted up, two sets of connecting seats of shells inner wall both ends symmetry formula fixed mounting have, rotatable coupling has the connecting axle in the connecting axle, connecting axle outer peripheral face fixed mounting has spacing fixture block, shell outer wall top fixed mounting has the electro-magnet, electro-magnet output and spacing fixture block top surface adsorb, casing one side fixed mounting has the PLC controller, the PLC controller signal output end is connected with the electro-magnet signal input end, braking wheel lateral wall fixedly connected with rolling dish.

As a preferable technical scheme of the utility model, the middle end of the peripheral surface of the rotating block is provided with a connecting groove, the rotating block is rotatably connected with the convex part at the middle end of the cavity in the shell through the connecting groove, and the rotating block and the brake wheel are both made of high-hardness wear-resistant metal.

As the preferable technical scheme of the utility model, the limit clamping block is positioned at the top end of the brake wheel and is formed by a claw-shaped structure, the claw ends of the limit clamping block face the top end of the outer peripheral surface of the brake wheel, the limit clamping block is made of magnetic high-hardness wear-resistant metal, two limit clamping blocks are arranged, and the claw ends of the two limit clamping blocks are mutually reversely arranged.

As the preferable technical scheme of the utility model, the output end of the electromagnet is attached to the inner wall of the top end of the shell, and when the electromagnet is powered off, the limit clamping block naturally drops under the influence of gravity and is meshed with the limit groove formed in the outer peripheral surface of the brake wheel, so that the brake wheel stops rotating.

As the preferable technical scheme of the utility model, two winding discs are arranged and are respectively positioned at the top end of the front surface of the shell and the top end of the back surface of the shell.

Compared with the prior art, the utility model provides the contour limiting device of the car elevator for the wind power generation tower, which has the following beneficial effects:

1. according to the utility model, the PLC controls the electromagnet to stop working, the limiting clamping block falls under the action of gravity, when the output end of the winch rotates, the limiting clamping block is meshed with the limiting groove, and then the brake wheel is limited, at the moment, when the output end of the winch rotates, the brake wheel is limited by the limiting clamping block, and the output end of the winch cannot continue to rotate, so that when the internal brake of the winch fails, the car can be prevented from sliding for a certain distance, the brake device at the bottom end of the car can only work, and the safety accident that personnel are injured due to the situation when the car door is opened is avoided.

Drawings

FIG. 1 is a schematic perspective view of the structure of the present utility model;

FIG. 2 is a schematic side cross-sectional view of one of the brake wheels of the present utility model;

FIG. 3 is a schematic diagram of the overall side cross-section of the structure of the present utility model;

fig. 4 is an enlarged partial schematic view of a in fig. 3, which is a structural view of the present utility model.

Wherein: 1. a housing; 2. a connecting plate; 3. a rotating block; 4. a brake wheel; 5. a limit groove; 6. a connecting seat; 7. a connecting shaft; 8. a limit clamping block; 9. an electromagnet; 10. a PLC controller; 11. and (5) rolling the reel.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-4, a cage elevator contour limiting device for a wind power generation tower comprises a shell 1, a connecting plate 2 integrally formed at the bottom end of the outer wall of the shell 1 and a plurality of connecting holes symmetrically formed at the two ends of the top surface of the connecting plate 2, wherein the limiting device is arranged at the front end of the output end of a winch through the connecting plate 2, a cavity with an H-shaped side section is arranged in the shell 1, the middle end of the cavity is rotatably connected with a rotating block 3, the middle end of the outer peripheral surface of the rotating block 3 is provided with a connecting groove, the rotating block 3 is rotatably connected with a protruding part at the middle end of the cavity in the shell 1 through the connecting groove, two brake wheels 4 are fixedly connected with the rotating block 3 through the two sides of the brake wheels 4, the rotating block 3 is rotatably connected in the shell 1, and then the brake wheels 4 can rotate in the shell 1 along with the rotation of the rotating block 3, the circumference of the outer peripheral surface of the brake wheel 4 is provided with a plurality of limit grooves 5 in an array manner, wherein the limit groove 5 of one brake wheel 4 faces to the limit groove 5 of the other brake wheel 4, two groups of connecting seats 6 are symmetrically and fixedly arranged at two ends of the inner wall of the shell 1, a connecting shaft 7 is rotatably connected in the connecting seats 6, a limit clamping block 8 is fixedly arranged on the outer peripheral surface of the connecting shaft 7, an electromagnet 9 is fixedly arranged at the top end of the outer wall of the shell 1, the output end of the electromagnet 9 is adsorbed with the top surface of the limit clamping block 8, the limit clamping block 8 is positioned at the top end of the brake wheel 4 and is formed by a claw-shaped structure, the claw ends of the limit clamping blocks 8 face to the top end of the outer peripheral surface of the brake wheel 4, the limit clamping blocks 8 are made of magnetic high-hardness wear-resistant metal, the two limit clamping blocks 8 are arranged in a mutual opposite manner, the side wall of the brake wheel 4 is fixedly connected with a winding disc 11, through the side connection of the brake wheel 4 and the receiving reel 11, one of the rolling reels 11 is fixedly connected with the output end of the winch, and the steel cable is fixedly connected with the rolling reel 11, so that the steel cable can be sent out or rolled up through the rolling reel 11 along with the output end of the winch, the lift of the lift car is controlled, when the output end of the winch stops, the electromagnet 9 stops working, the limit clamping block 8 falls down under the action of gravity, when the output end of the winch rotates, the limit clamping block 8 is meshed with the limit groove 5, and further the brake wheel 4 is limited, at the moment, when the output end of the winch rotates, the brake wheel 4 is limited by the limit clamping block 8, the output end of the winch cannot continue to rotate, so that when the internal brake of the winch fails, the brake device at the bottom end of the lift car can only operate after the lift car slides for a certain distance, the situation that the situation is caused when the car door is opened and the personnel is injured is avoided, the forward rotation or the reverse rotation of the output end of the winch can be prevented through the opposite directions of the limit grooves 5 formed in the two brake wheels 4, the rotating block 3 and the brake wheels 4 are made of high-hardness wear-resistant metal, the rotating block 3 and the brake wheels 4 made of high-hardness wear-resistant metal are further prevented from being damaged by stress in the limit process, the PLC 10 is fixedly arranged on one side of the shell 1, the signal output end of the PLC 10 is connected with the signal input end of the electromagnet 9, the electromagnet 9 is controlled to work or stop through the PLC 10, the electromagnet 9 is further enabled to work when the winch works, the electromagnet 9 adsorbs the limit clamping block 8 to be separated from the limit groove 5, and the limit on the brake wheels 4 is further released, thereby enabling the winch to normally rotate the winding reel 11.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a car lifting machine contour limiting device for wind power generation pylon, includes casing (1), a plurality of connecting holes, its characterized in that have been seted up to casing (1) outer wall bottom integrated into one piece's connecting plate (2) and connecting plate (2) top surface both ends symmetry: the utility model discloses a winding disc type electric motor is characterized in that a cavity with an 'I' -shaped side section is arranged inside a shell (1), a rotary block (3) is rotatably connected to the middle end of the cavity, two brake wheels (4) are symmetrically and fixedly connected to the two sides of the rotary block (3), a plurality of limit grooves (5) are formed in the circumference array of the outer peripheral surface of each brake wheel (4), one of the limit grooves (5) formed in each brake wheel (4) faces to the other limit groove (5) formed in each brake wheel (4), two groups of connecting seats (6) are symmetrically and fixedly arranged at the two ends of the inner wall of the shell (1), a connecting shaft (7) is rotatably connected to the connecting seats (6), limit clamping blocks (8) are fixedly arranged on the outer peripheral surface of each connecting shaft (7), an electromagnet (9) is fixedly arranged at the top end of the outer wall of the shell (1), a PLC (10) is fixedly arranged on one side of the shell (1), and a signal output end of the PLC (10) is fixedly connected with the electromagnet (9) and the signal input end of the electromagnet (8), and the side wall (11) is fixedly connected with the winding disc.

2. The car elevator contour limiting device for a wind power tower according to claim 1, wherein: the inner end of the peripheral surface of the rotating block (3) is provided with a connecting groove, the rotating block (3) is rotatably connected with the protruding part of the inner end of the cavity of the shell (1) through the connecting groove, and both the rotating block (3) and the brake wheel (4) are made of high-hardness wear-resistant metal.

3. The car elevator contour limiting apparatus for a wind power tower according to claim 2, wherein: the limiting clamping blocks (8) are located at the top ends of the brake wheels (4), the limiting clamping blocks (8) are formed in a claw-shaped structure, the claw ends of the limiting clamping blocks (8) face towards the top ends of the outer peripheral surfaces of the brake wheels (4), the limiting clamping blocks (8) are made of magnetic high-hardness wear-resistant metal, two limiting clamping blocks (8) are arranged, and the claw ends of the two limiting clamping blocks (8) are arranged in opposite directions.

4. A car hoist contour stop device for a wind power tower as defined in claim 3, wherein: the output end of the electromagnet (9) is attached to the inner wall of the top end of the shell (1), and when the electromagnet (9) is powered off, the limit clamping block (8) naturally drops under the influence of gravity and is meshed with the limit groove (5) formed in the outer peripheral surface of the brake wheel (4), so that the brake wheel (4) stops rotating.

5. The car elevator contour limiting device for a wind power tower according to claim 1, wherein: the winding discs (11) are arranged at two positions and are respectively positioned at the top end of the front surface of the shell (1) and the top end of the back surface of the shell (1).