Elevator rope returning wheel with safety protection structure
By designing protective components and limit structures on the elevator return rope wheel, the existing elevator return rope wheel is easily susceptible to dust erosion and friction of the traction rope, achieving more efficient operation and higher safety.
Patent Information
- Application Number
- CN202421459494.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-06-25
AI Technical Summary
The existing elevator return rope wheel is simple in design and is susceptible to dust and impurities, which affects the sliding efficiency of the traction rope. There are problems such as restriction of the traction rope movement and insufficient guidance, resulting in increased wear and loss and reducing elevator safety.
An elevator return wheel with a safety protection structure is designed, and a protective component is used to include a first connecting member and a second connecting member. Through the combination of a fixing hole and a fixing screw, these parts are firmly fixed on the outside of the return wheel, increasing connection stability, and providing a secondary limiting function through the cooperation of the metal convex ring and the annular groove to reduce the friction of the traction rope.
Effectively protect the top of the return rope wheel, prevent dust and other impurities from entering, ensure smooth sliding of the traction rope, improve operation efficiency, and reduce wear and improve the overall operation of the elevator through all-round guidance and limit traction ropes.
Smart Images
Figure CN222809092U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of elevator return rope wheels, in particular to an elevator return rope wheel with a safety protection structure. Background Art
[0002] The elevator return sheave is a key mechanical component that is mainly used to change the running direction of the elevator traction rope, thereby achieving effective control of the elevator car and counterweight. This device is usually installed at the top of the elevator shaft, the machine room or the pit, and ensures the smooth operation of the elevator during the lifting process by changing the running path of the traction rope and optimizing the tension distribution.
[0003] However, the return rope pulley designs of many elevators are relatively simple. They are directly exposed on the top of the car without additional protection measures. This exposed installation method makes the return rope pulley vulnerable to erosion by dust and other impurities. These substances will accumulate between the rope groove and the traction rope, affecting the sliding efficiency of the traction rope. In addition, the existing return rope pulley design has defects in limiting and guiding the movement of the two sets of traction ropes, which may cause unnecessary friction between the traction rope and other objects during operation, increasing wear and tear, thereby reducing the safety of the elevator.
[0004] Based on this, we propose an elevator return rope pulley with a safety protection structure to solve the above-mentioned problems. Utility Model Content
[0005] In order to improve the above-mentioned problems, the utility model provides an elevator return rope pulley with a safety protection structure.
[0006] The utility model provides an elevator return rope wheel with a safety protection structure, which adopts the following technical scheme: an elevator return rope wheel with a safety protection structure, comprising an elevator return rope mechanism and a traction rope, the traction rope is connected inside the elevator return rope mechanism, the elevator return rope mechanism comprises a return rope wheel, and a protection component is sleeved on the top of the return rope wheel;
[0007] The protection assembly includes a first connecting component and a second connecting component for safety protection of the return rope pulley, and the second connecting component is installed on one side of the first connecting component.
[0008] Based on the above technical features: the elevator return rope mechanism in this design is mainly composed of a return rope wheel and a protection component. The design of the protection component matches the transmission shaft through the connecting through hole, and the first connecting component and the second connecting component can be mounted on both sides of the return rope wheel. The first connecting component and the second connecting component are firmly fixed on the outer side of the return rope wheel by using the ingenious combination of the fixing hole and the fixing screw, which significantly improves the connection stability between the components. This design effectively protects the top of the return rope wheel and prevents dust and other impurities from falling between the rope groove and the traction rope, ensuring that the traction rope slides smoothly in the rope groove, thereby improving the operation efficiency;
[0009] This solution uses the annular grooves in the middle of both sides of the metal wheel body and the metal convex rings on the inner sides of the second side plate and the first side plate. When assembling the first connecting component, the second connecting component and the return rope pulley, the metal convex rings and the annular grooves can be closely matched to improve the fit of the components and provide a secondary limiting function, thereby ensuring the stability of the connection between them. In addition, the wire limiters installed on both sides of the top of the arc-shaped cover plate can guide and limit the traction rope in all directions through the design of the articulated frame and the guide shaft, thereby reducing the friction with other objects, reducing wear, and significantly improving the safety of the overall operation of the elevator.
[0010] As an elevator return rope pulley with a safety protection structure described in the utility model, the return rope pulley includes a metal wheel body, one side of the metal wheel body is provided with two groups of rope grooves for winding and connecting the traction rope, the middle part of the metal wheel body is rotatably connected to the transmission shaft, and the middle parts of both sides of the metal wheel body are respectively provided with annular grooves.
[0011] Based on the above technical features: This solution can improve the fit between the first connecting component, the second connecting component and the return rope pulley by respectively opening annular grooves in the middle of both sides of the metal wheel body, and at the same time can play a secondary limiting role on both sides of the return rope pulley installed between the first connecting component and the second connecting component.
[0012] As an elevator return rope pulley with a safety protection structure described in the utility model, the first connecting component includes an arc-shaped cover plate, a first side plate is installed on one side of the arc-shaped cover plate, wire limiters are respectively arranged on both sides of the top of the arc-shaped cover plate, and multiple groups of fixing screws are connected to the edge of one side of the arc-shaped cover plate away from the first side plate.
[0013] Based on the above technical features: This solution can bolt the first connecting component and the second connecting component which are sleeved and connected to both sides of the return rope pulley by means of a fixing screw installed at the edge of one side of the arc-shaped cover plate.
[0014] As an elevator return rope pulley with a safety protection structure described in the utility model, the second connecting component includes a second side plate, a plurality of fixing holes are provided at one edge of the second side plate, the fixing holes match the fixing screw structure, the inner sides of the second side plate and the first side plate are provided with metal convex rings, and the middle parts of the second side plate and the first side plate near the metal convex rings are respectively penetrated with connecting through holes, and the connecting through holes match the transmission shaft structure.
[0015] Based on the above technical features: This solution can improve the fit between the first connecting component, the second connecting component and the return rope pulley by respectively installing metal convex rings on the inner side of the second side plate and the first side plate, and at the same time can play a secondary limiting role on both sides of the return rope pulley installed between the first connecting component and the second connecting component.
[0016] As an elevator return rope pulley with a safety protection structure described in the utility model, wherein: the metal convex ring matches the annular groove structure, and the metal convex ring and the annular groove are rotationally matched.
[0017] Based on the above technical features: This solution can improve the fit between the first connecting component, the second connecting component and the return rope pulley through the structural design of the rotational cooperation between the metal convex ring and the annular groove, while also ensuring the flexibility of the return rope pulley installed between the first connecting component and the second connecting component.
[0018] As an elevator return rope wheel with a safety protection structure described in the utility model, two groups of rope threading holes are opened between the wire limiter and the arc-shaped cover plate, four groups of articulated frames are installed on the inner walls of the rope threading holes, and the interior of the articulated frames is also rotatably connected with a guide shaft body.
[0019] Based on the above technical features: the wire limiter in this scheme can guide and limit the traction rope of the transmission all around through the structural design of the articulated frame and the guide shaft, reducing unnecessary friction between the traction rope and other objects and reducing wear, thereby improving the overall safety of the elevator operation.
[0020] In summary, the present invention has at least one of the following beneficial effects:
[0021] 1. The elevator return rope mechanism in this design is mainly composed of a return rope wheel and a protection component. The design of the protection component matches the transmission shaft through the connecting through hole, and the first connecting component and the second connecting component can be mounted on both sides of the return rope wheel. The first connecting component and the second connecting component are firmly fixed on the outside of the return rope wheel by the ingenious combination of the fixing hole and the fixing screw, which significantly improves the connection stability between the components. This design effectively protects the top of the return rope wheel and prevents dust and other impurities from falling between the rope groove and the traction rope, ensuring that the traction rope slides smoothly in the rope groove, thereby improving the operation efficiency;
[0022] 2. This solution uses the annular grooves in the middle of both sides of the metal wheel body and the metal convex rings on the inner sides of the second side plate and the first side plate. When assembling the first connecting component, the second connecting component and the return rope pulley, the metal convex rings and the annular grooves are tightly matched to improve the fit of the components and provide a secondary limiting function, thereby ensuring the stability of the connection between them. In addition, the wire limiters installed on both sides of the top of the arc-shaped cover plate can guide and limit the traction rope in all directions through the design of the articulated frame and the guide shaft, thereby reducing its friction with other objects, reducing wear, and significantly improving the safety of the overall operation of the elevator. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0024] Figure 2 This is a schematic diagram of the disassembly of the protective components of the utility model;
[0025] Figure 3 It is a schematic diagram of the structure of the return rope wheel of the utility model;
[0026] Figure 4 It is a schematic diagram of the structure of the first connecting component of the utility model;
[0027] Figure 5 It is a schematic diagram of the structure of the second connecting component of the utility model;
[0028] Figure 6 It is a schematic diagram of the guide shaft structure of the utility model.
[0029] Description of reference numerals:
[0030] 1. Elevator return rope mechanism; 2. Traction rope; 3. Return rope wheel; 4. Protection assembly; 5. First connecting component; 6. Second connecting component; 7. Metal wheel body; 8. Rope groove; 9. Transmission shaft; 10. Annular groove; 11. Arc cover plate; 12. First side plate; 13. Wire limiter; 14. Fixing screw; 15. Second side plate; 16. Fixing hole; 17. Metal convex ring; 18. Connecting through hole; 19. Rope threading hole; 20. Articulated frame; 21. Guide shaft body. DETAILED DESCRIPTION
[0031] The following is combined with Figure 1-6 The utility model is described in further detail.
[0032] See also Figure 1-3 The utility model provides an elevator return rope wheel with a safety protection structure, including an elevator return rope mechanism 1 and a traction rope 2, the traction rope 2 is connected to the inside of the elevator return rope mechanism 1, the elevator return rope mechanism 1 includes a return rope wheel 3, the top of the return rope wheel 3 is sleeved with a protection component 4, the protection component 4 includes a first connecting component 5 and a second connecting component 6 for safety protection of the return rope wheel 3, the second connecting component 6 is installed on one side of the first connecting component 5, the return rope wheel 3 includes a metal wheel body 7, one side of the metal wheel body 7 is provided with two groups of rope grooves 8 for winding and connecting the traction rope 2, the middle part of the metal wheel body 7 is rotatably connected with a transmission shaft 9, and the middle parts of both sides of the metal wheel body 7 are respectively provided with annular grooves 10. Through the annular grooves 10 respectively provided in the middle parts of both sides of the metal wheel body 7, the fit between the first connecting component 5, the second connecting component 6 and the return rope wheel 3 can be improved, and at the same time, the two sides of the return rope wheel 3 installed between the first connecting component 5 and the second connecting component 6 can play a secondary limiting role.
[0033] See also Figure 4-5 The first connecting component 5 includes an arc-shaped cover plate 11, a first side plate 12 is installed on one side of the arc-shaped cover plate 11, and wire limiters 13 are respectively arranged on both sides of the top of the arc-shaped cover plate 11. A plurality of sets of fixing screws 14 are connected to the edge of one side of the arc-shaped cover plate 11 away from the first side plate 12. The first connecting component 5 and the second connecting component 6 which are sleeved and connected to both sides of the outer side of the return rope wheel 3 can be bolted by the fixing screws 14 installed on the edge of one side of the arc-shaped cover plate 11. The second connecting component 6 includes a second side plate 15, and a plurality of sets of fixing holes 16 are provided on the edge of one side of the second side plate 15. The fixing holes 16 and the fixing holes 16 are fixed to the outer sides of the return rope wheel 3. The structure of the fixing screw 14 matches, and the inner sides of the second side plate 15 and the first side plate 12 are both provided with metal convex rings 17. The middle parts of the second side plate 15 and the first side plate 12 near the metal convex rings 17 are also penetrated with connecting holes 18, and the connecting holes 18 match the structure of the transmission shaft 9. By installing the metal convex rings 17 on the inner sides of the second side plate 15 and the first side plate 12 respectively, the fit between the first connecting component 5, the second connecting component 6 and the return rope pulley 3 can be improved, and at the same time, a secondary limiting function can be played on both sides of the return rope pulley 3 installed between the first connecting component 5 and the second connecting component 6.
[0034] See also Figure 3-6The metal convex ring 17 matches the structure of the annular groove 10, and the metal convex ring 17 and the annular groove 10 are rotationally matched. Through the structural design of the rotational cooperation between the metal convex ring 17 and the annular groove 10, the fit between the first connecting component 5, the second connecting component 6 and the return rope wheel 3 can be improved, and the flexibility of the return rope wheel 3 installed between the first connecting component 5 and the second connecting component 6 can be ensured. Two groups of rope threading holes 19 are opened between the wire limiter 13 and the arc-shaped cover plate 11, and four groups of articulated frames 20 are installed on the inner wall of the rope threading holes 19. The interior of the articulated frame 20 is also rotatably connected with a guide shaft body 21. The wire limiter 13 in this scheme can guide and limit the traction rope 2 of the transmission and conveying in all directions through the structural design of the articulated frame 20 and the guide shaft body 21, thereby reducing unnecessary friction between the traction rope 2 and other objects and reducing wear, thereby improving the safety of the overall operation of the elevator.
[0035] Working principle: The elevator return rope mechanism 1 designed in this scheme is mainly composed of two parts: a return rope wheel 3 and a protection component 4. The protection component 4 is designed to match the structure of the transmission shaft 9 through the connecting through hole 18, so that the first connecting component 5 and the second connecting component 6 can be sleeved and connected to the two sides of the outside of the return rope wheel 3. The first connecting component 5 and the second connecting component 6 sleeved and connected to the two sides of the outside of the return rope wheel 3 can be bolted through the design of the fixing hole 16 matching the structure of the fixing screw 14, which can effectively improve the stability of the connection between the first connecting component 5, the second connecting component 6 and the return rope wheel 3. It can be seen from the above that the elevator return rope mechanism 1 designed in this scheme can play a role in shielding and protecting the top and surrounding of the return rope wheel 3, and can prevent impurities such as dust from falling between the rope groove 8 of the return rope wheel 3 and the traction rope 2, thereby ensuring the sliding efficiency of the rope groove 8 of the return rope wheel 3 on the traction rope 2;
[0036] This solution uses annular grooves 10 respectively opened in the middle of both sides of the metal wheel body 7, and metal convex rings 17 respectively installed on the inner sides of the second side plate 15 and the first side plate 12. When the first connecting component 5, the second connecting component 6, and the return rope wheel 3 are assembled, the metal convex ring 17 matches the structure of the annular grooves 10, which can improve the fit between the first connecting component 5, the second connecting component 6 and the return rope wheel 3, and at the same time, it can play a secondary limiting role on both sides of the return rope wheel 3 installed between the first connecting component 5 and the second connecting component 6, so as to ensure the stability of the connection between the first connecting component 5, the second connecting component 6, and the return rope wheel 3.
[0037] The present solution comprises wire limiters 13 respectively installed on both sides of the top of the arc-shaped cover plate 11. The wire limiters 13 can guide and limit the transmission rope 2 in all directions through the structural design of the hinged frame 20 and the guide shaft body 21, thereby reducing unnecessary friction between the traction rope 2 and other objects and reducing wear, thereby improving the overall safety of the elevator operation.
[0038] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.
Claims
1. An elevator return rope wheel with a safety protection structure, comprising an elevator return rope mechanism (1) and a traction rope (2), wherein the traction rope (2) is connected to the interior of the elevator return rope mechanism (1), characterized in that: The elevator rope return mechanism (1) comprises a rope return wheel (3), and a protective component (4) is sleeved on the top of the rope return wheel (3); The protection assembly (4) comprises a first connection component (5) and a second connection component (6) for safety protection of the return rope wheel (3), wherein the second connection component (6) is installed on one side of the first connection component (5).
2. The elevator return rope sheave with a safety protection structure according to claim 1, characterized in that: The return rope wheel (3) comprises a metal wheel body (7), one side of the metal wheel body (7) is provided with two groups of rope grooves (8) for winding and connecting the traction rope (2), the middle part of the metal wheel body (7) is rotatably connected to a transmission shaft (9), and the middle parts of both sides of the metal wheel body (7) are also provided with annular grooves (10) respectively.
3. The elevator return rope sheave with a safety protection structure according to claim 2, characterized in that: The first connecting component (5) comprises an arc-shaped cover plate (11), a first side plate (12) being mounted on one side of the arc-shaped cover plate (11), wire stoppers (13) being arranged on both sides of the top of the arc-shaped cover plate (11), and a plurality of sets of fixing screws (14) being connected to an edge of a side of the arc-shaped cover plate (11) away from the first side plate (12).
4. The elevator return rope sheave with a safety protection structure according to claim 3, characterized in that: The second connecting component (6) comprises a second side plate (15), a plurality of fixing holes (16) are provided at one edge of the second side plate (15), the fixing holes (16) are structurally matched with the fixing screws (14), the inner sides of the second side plate (15) and the first side plate (12) are both provided with metal convex rings (17), and the middle parts of the second side plate (15) and the first side plate (12) near the metal convex rings (17) are respectively penetrated with connecting through holes (18), the connecting through holes (18) are structurally matched with the transmission shaft (9).
5. The elevator return rope sheave with a safety protection structure according to claim 4, characterized in that: The metal convex ring (17) and the annular groove (10) are structurally matched, and the metal convex ring (17) and the annular groove (10) are rotationally matched.
6. The elevator return rope sheave with a safety protection structure according to claim 5, characterized in that: Two groups of rope threading holes (19) are formed between the wire stopper (13) and the arc-shaped cover plate (11), and four groups of hinged frames (20) are installed on the inner walls of the rope threading holes (19). The interior of the hinged frames (20) is also rotatably connected to a guide shaft body (21).