A traction device for elevator installation
By introducing a positioning mechanism and electric cylinder control into the traction device of the elevator, the problem of slippage and reverse rotation of the traction sheave was solved, thereby improving the stability and safety of elevator lifting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN RONGSHENG ELEVATOR CO LTD
- Filing Date
- 2025-09-03
- Publication Date
- 2026-06-30
AI Technical Summary
Existing elevator traction devices are prone to overload or insufficient friction during operation, causing the traction sheave to slip and reverse, posing a safety hazard.
The positioning mechanism includes a circular groove, a compression spring, a rotating gear plate, and a mating gear plate. Through tooth meshing and inclined surface design, it prevents the traction sheave from reversing. Combined with an electric cylinder to control the movement of the mating gear plate, it ensures stable lifting.
It effectively prevents the traction sheave from slipping and reversing, thus improving the stability and safety of the traction device during elevator installation.
Smart Images
Figure CN224429904U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of elevator installation technology, and specifically relates to a traction device for elevator installation. Background Technology
[0002] With the rapid development of urban construction, buildings are mostly high-rise or even super high-rise, and elevators, as key equipment for vertical transportation, are an indispensable part of construction projects. During elevator installation, a traction device, in conjunction with traction steel cables, is needed to lift the elevator car and counterweight to the predetermined position.
[0003] However, when the existing traction device is driven, if the elevator car being lifted and pulled is overloaded, or if the friction between the traction sheave and the wire rope is insufficient, the traction sheave is prone to slippage and reverse. This can not only cause the elevator to go out of control and affect the pulley of the traction device, but in extreme cases, it can also cause a safety accident. Utility Model Content
[0004] The purpose of this invention is to provide a traction device for elevator installation that can assist in limiting the traction sheave, preventing the traction sheave from slipping and reversing, thereby improving the safety of the traction device.
[0005] The specific technical solution adopted by this utility model is as follows:
[0006] A traction device for elevator installation includes a base, a rotating motor, a rotating rod, a winding reel, and a vertical plate. The rotating motor is fixedly connected to the top of the base, the rotating rod is fixedly connected to the output end of one side of the rotating motor, the winding reel is fixedly sleeved on the surface of the rotating rod, and the vertical plate is movably sleeved on the surface of the rotating rod and fixedly connected to the top of the base. A positioning mechanism is provided on the outer side of the vertical plate. The positioning mechanism includes a circular groove, a compression spring, a rotating gear disc, and a mating gear disc. The circular groove is formed on the outer side of the vertical plate, one end of the compression spring is fixedly connected to the inner wall of the circular groove, and the compression spring is movably sleeved on the surface of the rotating rod. The rotating gear disc is sleeved on the surface of the rotating rod and fixedly connected to one side of the winding reel. The mating gear disc is movably sleeved on the surface of the rotating rod, and the teeth of the mating gear disc mesh with the teeth of the rotating gear disc.
[0007] Preferably, a limiting rod is fixedly connected to the outer side of the upright plate. The limiting rod is located at the top and bottom of the mating gear plate, and a slider is fixedly connected to the top and bottom of the mating gear plate. The slider is slidably connected to the surface of the limiting rod.
[0008] Preferably, the teeth on one side of the rotating gear disk are provided as inclined surfaces, and the teeth on the other side of the mating gear disk are also provided with inclined surfaces that mate and connect with the teeth of the rotating gear disk.
[0009] Preferably, a limiting member is fixedly connected to the end of the limiting rod, and the limiting member is circular.
[0010] Preferably, the upright plate has a circular hole inside, and an electric cylinder is fixedly connected inside the circular hole. The output end of the electric cylinder is fixedly connected to the gear plate.
[0011] Preferably, there are two circular holes, which are evenly distributed on both sides of the upright plate, and an electric cylinder is fixedly connected inside each of the two circular holes.
[0012] The technical effects achieved by this utility model are as follows:
[0013] In this invention, when lifting the elevator car, the rotating motor reverses to drive the rotating rod to rotate. The rotating rod then drives the take-up wheel to rotate, which in turn drives the rotating gear disc to rotate. The rotation of the gear disc, with the cooperation of the inclined plane, compresses the mating gear disc to move outward. The outward movement of the mating gear disc also compresses the compression spring. When the take-up wheel rotates, it continuously compresses the mating gear disc and the compression spring. Furthermore, under the rebound force of the compression spring, it pushes the mating gear disc to engage and limit the rotation of the gear disc, preventing the take-up wheel from slipping and reversing during rotation. This ensures stable lifting of the elevator during installation and improves the stability of the traction device. Attached Figure Description
[0014] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a partial side view sectional perspective schematic diagram of this utility model;
[0016] Figure 3 This is a utility model Figure 2 Enlarged 3D diagram at point A in the middle;
[0017] Figure 4 This is a three-dimensional schematic diagram of the connection between the circular hole and the electric cylinder of this utility model.
[0018] The attached diagram lists the components represented by each number as follows:
[0019] 1. Base; 101. Rotating motor; 102. Rotating rod; 103. Rewinding wheel; 104. Vertical plate; 201. Circular groove; 202. Compression spring; 203. Rotating gear plate; 204. Matching gear plate; 205. Limiting rod; 206. Slider; 3. Limiting component; 401. Circular hole; 402. Electric cylinder. Detailed Implementation
[0020] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0021] like Figures 1-4 As shown, a traction device for elevator installation includes a base 1, a rotating motor 101, a rotating rod 102, a winding wheel 103, and a vertical plate 104. The rotating motor 101 is fixedly connected to the top of the base 1, the rotating rod 102 is fixedly connected to the output end of one side of the rotating motor 101, the winding wheel 103 is fixedly sleeved on the surface of the rotating rod 102, and the vertical plate 104 is movably sleeved on the surface of the rotating rod 102 and fixedly connected to the top of the base 1. A positioning mechanism is provided on the outer side of the vertical plate 104. The positioning mechanism includes a circular groove 201, a compression spring 202, a rotating gear 203, and a mating gear 204. The circular groove 201 is formed in the vertical plate 104. On the outside, one end of the compression spring 202 is fixedly connected to the inner wall of the circular groove 201. The compression spring 202 is movably sleeved on the surface of the rotating rod 102. The rotating gear 203 is sleeved on the surface of the rotating rod 102 and fixedly connected to one side of the take-up wheel 103. The cooperating gear 204 is movably sleeved on the surface of the rotating rod 102. The teeth of the cooperating gear 204 mesh with the teeth of the rotating gear 203. Through the cooperation of the positioning mechanism, the take-up wheel 103 of the traction device can be positioned to prevent the take-up wheel 103 of the traction device from slipping and reversing during elevator installation. This allows for stable lifting of the elevator and improves the stability of the traction device.
[0022] like Figures 2-4 As shown, a limiting rod 205 is fixedly connected to the outer side of the upright plate 104. The limiting rod 205 is located at the top and bottom of the mating gear plate 204. A slider 206 is fixedly connected to both the top and bottom of the mating gear plate 204. The slider 206 is slidably connected to the surface of the limiting rod 205. When the mating gear plate 204 is pressed, the mating gear plate 204 will drive the slider 206 to slide on the surface of the limiting rod 205. This can help limit the parallel movement of the mating gear plate 204 and prevent the mating gear plate 204 from rotating due to the lack of a limiting position when the rotating gear plate 203 rotates. This limits the mating gear plate 204 so that it can only move in parallel.
[0023] like Figures 2-3 As shown, the teeth on one side of the rotating gear disk 203 are set as inclined surfaces, and the teeth on one side of the mating gear disk 204 are also provided with inclined surfaces that are connected to the teeth of the rotating gear disk 203. When the rotating gear disk 203 rotates, it will cooperate with the inclined surfaces of the mating gear disk 204, and the rotating gear disk 203 will rotate smoothly under the guidance of the inclined surfaces.
[0024] like Figures 2-4As shown, a limiting member 3 is fixedly connected to the end of the limiting rod 205. The limiting member 3 is circular. When the compression spring 202 pushes the mating gear 204 to move outward, the mating gear 204 can drive the slider 206 to slide on the surface of the limiting rod 205. In order to prevent the slider 206 from leaving the surface of the limiting rod 205, the slider 206 can be limited to the surface of the limiting rod 205 with the auxiliary blocking of the limiting member 3, thereby limiting the movement trajectory and distance of the mating gear 204.
[0025] like Figure 4 As shown, the interior of the upright plate 104 has a circular hole 401, and an electric cylinder 402 is fixedly connected inside the circular hole 401. The output end of the electric cylinder 402 is fixedly connected to the mating gear plate 204, and the electric cylinder 402 is in a continuous running state. There are two circular holes 401, which are evenly distributed on both sides of the upright plate 104. The electric cylinder 402 is fixedly connected inside both circular holes 401. When it is necessary to lower the hoisted elevator car, in order to prevent the rotating gear plate 203 from engaging with the mating plate and thus locking itself and preventing the motor from rotating forward, the electric cylinder 402 can be closed. After the electric cylinder 402 is closed, it will drive the mating gear plate 204 to move closer to the mating plate. When one side of the upright plate 104 moves, it compresses the compression spring 202. After the gear plate 204 moves closer to the upright plate 104, it can disengage from the rotating gear plate 203. Then, the rotating motor 101 can rotate forward and drive the winding wheel 103 to rotate through the rotating rod 102. The rotation of the winding wheel 103 will lower the traction rope. Thus, the moving gear plate 204 can be flexibly controlled by the electric cylinder 402 to disengage from the rotating gear plate 203. With the simultaneous operation of the two electric cylinders 402, the moving gear plate 204 can be smoothly driven, avoiding deviation when the electric cylinder 402 drives the moving gear plate 204.
[0026] The working principle of this utility model is as follows: When installing and lifting the elevator car, the rotating motor 101 will rotate in reverse to drive the rotating rod 102 to rotate. The rotation of the rotating rod 102 will drive the winding wheel 103 to rotate. The rotation of the winding wheel 103 will drive the rotating gear 203 to rotate. The rotation of the rotating gear 203, with the cooperation of the inclined plane, can squeeze the mating gear 204 to move outward. The mating gear 204 moves outward and can squeeze the compression spring 202 at the same time. When the winding wheel 103 is rotating, it can continuously squeeze the mating gear 204 and the compression spring 202. Under the rebound force of the compression spring 202, it can push the mating gear 204 to mesh with the rotating gear 203 and limit the rotation, preventing the winding wheel 103 from slipping and reversing during rotation. Thus, it can stably lift the elevator during installation and improve the stability of the traction device.
[0027] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. A traction device for elevator installation, comprising a base (1), a rotating motor (101), a rotating rod (102), a winding wheel (103), and a vertical plate (104), wherein the rotating motor (101) is fixedly connected to the top of the base (1), the rotating rod (102) is fixedly connected to the output end of one side of the rotating motor (101), the winding wheel (103) is fixedly sleeved on the surface of the rotating rod (102), and the vertical plate (104) is movably sleeved on the surface of the rotating rod (102) and fixedly connected to the top of the base (1), characterized in that: A positioning mechanism is provided on the outer side of the upright plate (104); The positioning mechanism includes a circular groove (201), a compression spring (202), a rotating gear disc (203), and a mating gear disc (204). The circular groove (201) is located on the outer side of the upright plate (104). One end of the compression spring (202) is fixedly connected to the inner wall of the circular groove (201). The compression spring (202) is movably sleeved on the surface of the rotating rod (102). The rotating gear disc (203) is sleeved on the surface of the rotating rod (102) and fixedly connected to one side of the winding wheel (103). The mating gear disc (204) is movably sleeved on the surface of the rotating rod (102). The teeth of the mating gear disc (204) mesh with the teeth of the rotating gear disc (203).
2. The traction device for elevator installation according to claim 1, characterized in that: A limiting rod (205) is fixedly connected to the outside of the upright plate (104). The limiting rod (205) is located at the top and bottom of the mating gear plate (204). A slider (206) is fixedly connected to the top and bottom of the mating gear plate (204). The slider (206) is slidably connected to the surface of the limiting rod (205).
3. A traction device for elevator installation according to claim 1, characterized in that: The teeth on one side of the rotating toothed disc (203) are provided with inclined surfaces, and the teeth on one side of the mating toothed disc (204) are also provided with inclined surfaces that are connected to the teeth of the rotating toothed disc (203).
4. A traction device for elevator installation according to claim 2, characterized in that: The end of the limiting rod (205) is fixedly connected to a limiting member (3), which is circular.
5. A traction device for elevator installation according to claim 1, characterized in that: The upright plate (104) has a circular hole (401) inside, and an electric cylinder (402) is fixedly connected inside the circular hole (401). The output end of the electric cylinder (402) is fixedly connected to the gear plate (204).
6. A traction device for elevator installation according to claim 5, characterized in that: There are two circular holes (401), which are evenly distributed on both sides of the upright plate (104). An electric cylinder (402) is fixedly connected inside each of the two circular holes (401).