Elevator traction sheave

Abstract

The utility model discloses an elevator traction sheave which comprises a base, a mounting seat is fixedly connected to the base, a containing groove is formed in the mounting seat, a sheave body is rotationally connected in the containing groove, a steel wire rope is wound on the peripheral side of the sheave body, and two grooves are formed in the side wall of the containing groove and are symmetrically arranged. An emergency stop assembly and a control assembly for controlling the emergency stop assembly are mounted in the groove; a through groove is formed in the top wall of the containing groove, and a manual driving assembly for controlling the wheel body to rotate is detachably connected into the through groove. The emergency stop device is simple in structure and convenient to operate, the emergency stop assembly can be controlled after emergency stop, and the position of the elevator can be adjusted conveniently.

Description

An elevator traction sheave Technical Field

[0001] This utility model relates to the field of elevator technology, and in particular to an elevator traction sheave. Background Technology

[0002] Modern elevators mainly consist of a traction machine (winch), guide rails, counterweight, safety devices (such as speed governors, safety brakes and buffers), signal control system, car and landing doors, etc. These components are installed in the building's hoistway and machine room, respectively. They typically use wire rope friction drive, with the wire rope passing around the traction sheave and connecting the car and counterweight at both ends. The motor drives the traction sheave to raise and lower the car. Elevators are required to be safe and reliable, have high transport efficiency, accurate leveling, and comfortable ride. The traction sheave is the rope sheave on the traction machine, also called the traction rope sheave or drive rope sheave. The device that transmits traction power utilizes the friction between the traction steel wire rope and the grooves on the rim of the traction sheave to transfer power. To cope with sudden power outages or elevator malfunctions, an emergency stop device is typically installed on one side of the traction sheave to quickly stop its rotation after a power failure. However, existing traction sheaves lack a control structure on one side, making it impossible to manually adjust the rotation of the traction sheave after an emergency stop. This hinders the convenient transport of the elevator to the floor door and makes rescue of people inside the elevator difficult. Therefore, there is an urgent need for an elevator traction sheave that can be manually driven to rotate after an emergency stop. Summary of the Invention

[0003] The purpose of this invention is to provide an elevator traction sheave to solve the problems existing in the prior art.

[0004] To achieve the above objectives, this utility model provides the following solution: This utility model provides an elevator traction sheave, including a base, a mounting seat fixedly connected to the base, a receiving groove provided in the mounting seat, a wheel body rotatably connected in the receiving groove, a steel wire rope wound around the circumference of the wheel body, two grooves provided in the side wall of the receiving groove, the two grooves being symmetrically arranged, an emergency stop component and a control component for controlling the emergency stop component being installed in the groove; a through groove provided in the top wall of the receiving groove, a manual drive component for controlling the rotation of the wheel body being detachably connected in the through groove.

[0005] Preferably, the emergency stop assembly includes a limiting plate fixedly connected coaxially to the wheel body, a friction block slidably connected in the groove, the friction block being correspondingly arranged with the limiting plate, a mounting plate fixedly connected in the groove, two limiting posts fixedly connected to the side of the friction block away from the limiting plate, the two limiting posts slidably passing through the mounting plate, a compression spring fixedly connected between the friction block and the mounting plate, an electromagnet fixedly connected to the mounting plate, and a magnetic block with opposite magnetic poles to the electromagnet fixedly embedded on the friction block.

[0006] Preferably, the control component includes a turntable located within the groove and rotatably connected to the inner wall of the groove. The turntable is located on the side of the mounting plate away from the friction block. A connecting post is fixedly connected to the end face of the turntable. A pull rod is rotatably connected between the connecting post and any of the limiting posts. A control disk is rotatably connected to the mounting base corresponding to the turntable. The rotating shaft of the control disk passes through the turntable and is fixedly connected to the turntable. A handle is rotatably connected to the control disk.

[0007] Preferably, the manual drive assembly includes a geared disc fixedly connected to the wheel body on the same axis. A circular hole is provided in the inner wall of the through groove. A rotating shaft is detachably connected to the circular hole. The rotating shaft is rotatably disposed in the circular hole. A drive gear that meshes with the geared disc is fixedly connected to the rotating shaft. A drive disk is fixedly connected to the rotating shaft. A handle is rotatably connected to the drive disk.

[0008] Preferably, a limiting groove is formed on the side of the turntable, and a limiting bolt is provided through the side wall of the groove. The limiting bolt is threaded to the side wall of the groove and is correspondingly provided with the limiting groove.

[0009] Preferably, a limiting block is fixedly connected inside the groove, and the limiting block is arranged in contact with the friction block.

[0010] Preferably, the base has a through hole, through which the steel wire rope passes.

[0011] Preferably, an end cap is fixedly connected to the outside of the mounting base by bolts.

[0012] This utility model discloses the following technical effects: By setting an emergency stop component within the groove, this utility model can react promptly in the event of a power outage or other incident to limit the movement of the wheels, thereby stabilizing the elevator. Simultaneously, a control component is set within the groove. When it is necessary to rotate the wheels to align the elevator with the elevator door for easier rescue, the control component adjusts the emergency stop component, removing it from limiting the wheel movement. At the same time, another operator holds a manual drive component, manually rotating the wheels in the designated direction, thus moving the elevator to face the elevator door for easy rescue. This utility model has a simple structure, is easy to operate, and allows control of the emergency stop component after an emergency stop, facilitating the adjustment of the elevator's position. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 is a schematic diagram of the elevator traction sheave structure of this utility model;

[0015] Figure 2 is a front view of the elevator traction sheave of this utility model;

[0016] The components are as follows: 1. Base; 2. Mounting seat; 3. Receiving groove; 4. Wheel body; 5. Steel wire rope; 6. Groove; 7. Through groove; 8. Limiting plate; 9. Friction block; 10. Mounting plate; 11. Limiting post; 12. Compression spring; 13. Electromagnet; 14. Magnetic block; 15. Turntable; 16. Pull rod; 17. Control panel; 18. Handle; 19. Gear plate; 20. Rotating shaft; 21. Drive gear; 22. Drive plate; 23. Grip; 24. Limiting groove; 25. Limiting bolt; 26. Limiting block; 27. Through hole; 28. End cap. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Referring to Figures 1-2, this utility model provides an elevator traction sheave, including a base 1, a mounting seat 2 fixedly connected to the base 1, a receiving groove 3 within the mounting seat 2, a wheel 4 rotatably connected within the receiving groove 3, and a steel wire rope 5 wound around the wheel 4. Two grooves 6 are symmetrically arranged on the side wall of the receiving groove 3, and an emergency stop component and a control component for controlling the emergency stop component are installed within the grooves 6. A through groove 7 is provided on the top wall of the receiving groove 3, and a manual drive component for controlling the rotation of the wheel 4 is detachably connected within the through groove 7. By installing the emergency stop component within the groove 6, a timely response can be made in the event of a power outage or other incidents to limit the wheel 4, thereby stabilizing the elevator. Simultaneously, the control component within the groove 6 allows for the adjustment of the emergency stop component to remove the limiting effect on the wheel 4 when the wheel 4 needs to be rotated to face the elevator door for rescue. At the same time, another worker can manually drive the wheel 4 in the designated direction, thus moving the elevator to face the elevator door for rescue.

[0020] The optimized design includes an emergency stop assembly comprising a limiting disc 8 coaxially fixedly connected to the wheel 4, a friction block 9 slidably connected within a groove 6, the friction block 9 corresponding to the limiting disc 8, a mounting plate 10 fixedly connected within the groove 6, two limiting posts 11 fixedly connected to the side of the friction block 9 away from the limiting disc 8, the two limiting posts 11 slidably penetrating the mounting plate 10, and a compression spring 12 fixedly connected between the friction block 9 and the mounting plate 10; an electromagnet 13 fixedly connected to the mounting plate 10, and a magnetic block 14 with opposite magnetic poles to the electromagnet 13 fixedly embedded in the friction block 9. In the event of a power outage, the electromagnet 13 loses its power supply and no longer attracts the magnetic block 14. The friction block 9, under the action of the compression spring 12, contacts and limits the limiting disc 8, thereby bringing the wheel 4 to an emergency stop.

[0021] Further optimizing the design, the control component includes a turntable 15 located within the groove 6 and rotatably connected to the inner wall of the groove 6. The turntable 15 is located on the side of the mounting plate 10 away from the friction block 9. A connecting post is fixedly connected to the end face of the turntable 15, and a pull rod 16 is rotatably connected between the connecting post and any limiting post 11. A control disc 17 is rotatably connected to the mounting base 2, corresponding to the turntable 15. The shaft of the control disc 17 passes through the turntable 15 and is fixedly connected to it. A handle 18 is rotatably connected to the control disc 17. By rotating the control disc 17 through the handle 18, the turntable 15 is rotated. The limiting post 11 can be pulled by the pull rod 16 to slowly separate the friction block 8 from the limiting disc 8, facilitating manual adjustment of the wheel 4 rotation.

[0022] The scheme is further optimized. The manual drive component includes a geared disc 19 coaxially fixedly connected to the wheel 4. A circular hole is opened in the inner wall of the through groove 7, and a rotating shaft 20 is detachably connected to the circular hole. The rotating shaft 20 is rotatably disposed in the circular hole. A drive gear 21 that meshes with the geared disc 19 is fixedly connected to the rotating shaft 20. A drive disk 22 is fixedly connected to the rotating shaft 20, and a handle 23 is rotatably connected to the drive disk 22. By rotating the drive disk 22 through the handle 23, the geared disc 19 is driven to rotate through the drive gear 21. This allows the wheel 4 to rotate when the emergency stop component is no longer in a limited position, thereby moving the elevator to the elevator door position, facilitating rescue inside the elevator.

[0023] To further optimize the design, a limiting groove 24 is provided on the side of the turntable 15, and a limiting bolt 25 is provided through the side wall of the groove 6. The limiting bolt 25 is threadedly connected to the side wall of the groove 6 and is correspondingly set with the limiting groove 24. The limiting bolt 25 cooperates with the limiting groove 24 to limit the turntable 15, making it easier for the manual drive component to drive the wheel 4 to rotate.

[0024] In a further optimized design, a limiting block 26 is fixedly connected within the groove 6, and the limiting block 26 is positioned in contact with the friction block 9. The limiting block 26 can limit the friction block 9, ensuring that it remains stable at the limiting block 26 under the attraction of the electromagnet 13.

[0025] The design was further optimized by providing a through hole 27 on the base 1, through which the steel wire rope 5 passes. This facilitates the connection of the steel wire rope 5 to the elevator and the counterweight.

[0026] The design was further optimized by attaching an end cap 28 to the outside of the mounting base 2 via bolts. This provides support for the axle containing the wheel 4 and also protects its internal structure.

[0027] The working process of this utility model is as follows: When the elevator malfunctions and loses power, the electromagnet 13 loses its power supply and no longer attracts the magnetic block 14. The friction block 9, under the action of the compression spring 12, moves closer to the side of the limiting plate 8 and limits the limiting plate 8 through friction, preventing it and the wheel 4 from rotating, thus stopping the elevator. After the emergency stop, when it is necessary to adjust the elevator position to face the elevator door for rescue, simply insert the rotating shaft 20 to engage the drive gear 21 with the gear plate 19, and have one person firmly hold the drive plate 22 and the handle 23. Then, the control plate 17 drives the turntable 15 to rotate. During the rotation, the turntable 15 pulls the limiting post 11 via the pull rod 16, causing the friction block 9 to slowly separate from the limiting plate 8. This allows the handle 23 to drive the drive gear 21 to rotate, which in turn drives the wheel 4 via the gear plate 19, moving the elevator to the designated position for rescue.

[0028] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. An elevator sheave, characterized by: Includes a base (1), on which a mounting seat (2) is fixedly connected. A receiving groove (3) is provided in the mounting seat (2). A wheel (4) is rotatably connected in the receiving groove (3). A steel wire rope (5) is wound around the wheel (4). Two grooves (6) are provided on the side wall of the receiving groove (3). The two grooves (6) are symmetrically arranged. An emergency stop component and a control component for controlling the emergency stop component are installed in the grooves (6). A through groove (7) is provided on the top wall of the receiving groove (3). A manual drive component for controlling the rotation of the wheel (4) is detachably connected in the through groove (7).

2. An elevator sheave according to claim 1, characterized in that: The emergency stop assembly includes a limiting disc (8) coaxially fixedly connected to the wheel body (4), a friction block (9) slidably connected in the groove (6), the friction block (9) being correspondingly arranged with the limiting disc (8), a mounting plate (10) fixedly connected in the groove (6), two limiting posts (11) fixedly connected on the side of the friction block (9) away from the limiting disc (8), the two limiting posts (11) slidably passing through the mounting plate (10), a compression spring (12) fixedly connected between the friction block (9) and the mounting plate (10); an electromagnet (13) fixedly connected on the mounting plate (10), and a magnetic block (14) with opposite magnetic poles to the electromagnet (13) fixedly embedded on the friction block (9).

3. An elevator traction sheave according to claim 2, characterized in that: The control component includes a turntable (15) located in the groove (6) and rotatably connected to the inner wall of the groove (6). The turntable (15) is located on the side of the mounting plate (10) away from the friction block (9). A connecting post is fixedly connected to the end face of the turntable (15). A pull rod (16) is rotatably connected between the connecting post and any of the limiting posts (11). A control disk (17) is rotatably connected to the mounting base (2) corresponding to the turntable (15). The rotating shaft of the control disk (17) passes through the turntable (15) and is fixedly connected to the turntable (15). A handle (18) is rotatably connected to the control disk (17).

4. An elevator traction sheave according to claim 1, characterized in that: The manual drive assembly includes a gear disc (19) coaxially fixedly connected to the wheel body (4). A circular hole is provided on the inner wall of the through groove (7). A rotating shaft (20) is detachably connected to the circular hole. The rotating shaft (20) is rotatably disposed in the circular hole. A drive gear (21) meshing with the gear disc (19) is fixedly connected to the rotating shaft (20). A drive disc (22) is fixedly connected to the rotating shaft (20). A handle (23) is rotatably connected to the drive disc (22).

5. An elevator traction sheave according to claim 3, characterized in that: The turntable (15) has a limiting groove (24) on its side, and a limiting bolt (25) is provided through the side wall of the groove (6). The limiting bolt (25) is threaded to the side wall of the groove (6) and is provided corresponding to the limiting groove (24).

6. An elevator sheave according to claim 2, characterized in that: A limiting block (26) is fixedly connected inside the groove (6), and the limiting block (26) is in contact with the friction block (9).

7. An elevator traction sheave according to claim 1, characterized in that: The base (1) has a through hole (27), and the steel wire rope (5) passes through the through hole (27).

8. An elevator sheave according to claim 1, characterized in that: An end cap (28) is fixedly connected to the outside of the mounting base (2) by bolts.

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