Cobweb-shaped nylon rope wheel structure

Abstract

The utility model provides a cobweb-shaped nylon rope wheel structure. The cobweb-shaped nylon rope wheel structure comprises a rim, a hub and cobweb-shaped spokes. The rim and the hub are arranged in a concentric circle mode, and the cobweb-shaped spoke is connected between the rim and the hub. The rim and the cobweb-shaped spoke comprise supporting ribs extending in the radial direction and circular ring structures connected between the supporting ribs. The number of the supporting ribs is 12, and the supporting ribs are arranged between the rim and the hub in the circumferential direction at intervals. The number of the circular ring structures is two, and the circular ring structures are concentrically arranged. The outer diameter of the rim is 400 mm, the diameter of the hub is 152 mm, the thickness of the rope wheel is 126 mm, the width of the supporting ribs is 16.5 mm, the maximum diameters of the two circular structures are 295 mm and 222 mm respectively, and the widths of the two circular structures are 10 mm.

Description

Technical Field

[0001] The utility model relates to a pulley of an elevator traction system, in particular to a spider web-shaped nylon rope pulley structure. Background Art

[0002] With the continuous improvement of living standards, the real estate industry, especially high-rise buildings, is developing rapidly. my country's elevator industry has ushered in huge development opportunities and challenges. The huge market demand and output have made China the world's largest elevator manufacturer and the country with the largest annual increase in new elevators. The sharp increase in the total number of elevators will also lead to the rise of new materials and new process technologies for elevators. The traction system is one of the main systems of the elevator, which plays the role of outputting power, transmitting power, and driving the car to run. The sheave is an important part of the traction system. The car and counterweight are realized by the traction wire rope winding the sheave to run up and down and suspend. The design of the sheave assembly is related to the safety of the elevator. Therefore, the structural optimization design of the sheave is of great significance to the safe operation of the elevator. Utility Model Content

[0003] The purpose of the utility model is to provide a nylon rope pulley structure to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the utility model provides a spider web-shaped nylon rope pulley structure, comprising: a rim, a hub, and spider web-shaped spokes;

[0005] The rim and the hub are arranged in concentric circles, and the spider-web-shaped spokes are connected between the rim and the hub; the rim and the spider-web-shaped spokes include support ribs extending along the radial direction and an annular structure connected between the support ribs; the support ribs are 12 in number and are arranged between the rim and the hub at intervals along the circumferential direction; the annular structures are two and are arranged in concentric circles;

[0006] The outer diameter of the rim is 400 mm, the diameter of the hub is 152 mm, the thickness of the rope pulley is 126 mm, the width of the supporting rib is 16.5 mm, the maximum diameters of the two circular structures are 295 mm and 222 mm respectively, and the widths are both 10 mm.

[0007] Compared with the prior art, the technical solution of the utility model has the following beneficial effects:

[0008] The utility model provides a spider-web-shaped nylon rope pulley structure, which has better deformation resistance and improved strength, and prevents the nylon rope pulley rim from being greatly deformed or structurally broken when bearing a heavy load, causing the steel wire rope to fall off and causing a safety accident in the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is the structural model diagram of the anti-ropes pulley after optimization;

[0010] Figure 2 Comparison of mechanical properties of the front and rear anti-ropes for optimization; DETAILED DESCRIPTION

[0011] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0012] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0013] In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "installed / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0014] refer to Figure 1-Figure 2 , this embodiment provides a spider web-shaped nylon rope pulley structure, including: a rim 1, a hub 2, and spider web-shaped spokes;

[0015] The rim 1 and the hub 2 are arranged in concentric circles, and the spider-web-shaped spokes are connected between the rim 1 and the hub 2; the rim 1 and the spider-web-shaped spokes include support ribs 3 extending in the radial direction and annular structures 4 connected between the support ribs 3; the support ribs 3 are 12 in number and are arranged between the rim 1 and the hub 2 at intervals along the circumferential direction; the annular structures 4 are two and are arranged in concentric circles;

[0016] The outer diameter of the rim 1 is 400 mm, the diameter of the hub 2 is 152 mm, the thickness of the rope pulley is 126 mm, the width of the supporting rib 3 is 16.5 mm, the maximum diameters of the two circular structures are 295 mm and 222 mm respectively, and the widths are both 10 mm.

[0017] Mechanical properties analysis of the above spider web nylon rope pulley structure:

[0018] After importing the return rope pulley model in Ansys Workbench, fill in the material parameters, set the load conditions and constraints. The mesh is set to C3D4 tetrahedron, and the size is automatically divided according to the model size. Set the working environment temperature to 50℃; apply a variable function load with a trigonometric function distribution method with the largest at the bottom and the smallest on both sides on both sides of the bottom of the return rope pulley; apply a bearing load above the contact position between the return rope pulley shaft and the bearing, which is a sine distribution; apply displacement constraints at the bayonet positions at both ends of the shaft to limit its degrees of freedom in the three directions of XYZ.

[0019] By comparing the stress and displacement distribution of the results, and paying attention to indicators such as stress concentration, deformation, and stress-displacement peak, it can be found that compared with the traditional rope pulley model, the maximum deformation of the spider web rope pulley model is reduced by 51.44%, the maximum stress is reduced by 23.95%, and the mechanical properties are significantly improved.

[0020] The above is only a preferred specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any technician familiar with the technical field who uses this concept to make non-substantial changes to the utility model within the technical scope disclosed by the utility model shall be deemed to infringe the protection scope of the utility model.

Claims

1. A spider web-like nylon rope pulley structure, characterized in that include: rims, hubs, spiderweb spokes; The rim and the hub are arranged in concentric circles, and the spider-web-shaped spokes are connected between the rim and the hub; the rim and the spider-web-shaped spokes include support ribs extending along the radial direction and an annular structure connected between the support ribs; the support ribs are 12 in number and are arranged between the rim and the hub at intervals along the circumferential direction; the annular structures are two and are arranged in concentric circles; The outer diameter of the rim is 400 mm, the diameter of the hub is 152 mm, the thickness of the rope pulley is 126 mm, the width of the supporting rib is 16.5 mm, the maximum diameters of the two circular structures are 295 mm and 222 mm respectively, and the widths are both 10 mm.

Images