CN215474242U

CN215474242U - Tire and aerial work platform

Info

Publication number: CN215474242U
Application number: CN202121013957.1U
Authority: CN
Inventors: 王凯; 张领; 裘伟锋; 宋磊
Original assignee: Terex Changzhou Machinery Co ltd
Current assignee: Terex Changzhou Machinery Co ltd
Priority date: 2021-05-12
Filing date: 2021-05-12
Publication date: 2022-01-11
Anticipated expiration: 2031-05-12

Abstract

The utility model provides a tire, which comprises a tire body and a rim, wherein the rim is arranged on the inner wall of the tire body, the tire body is kept on the rim when the tire moves, and the inner wall of the rim shows gradual expansion when the tire moves from the outer side to the inner side of the tire. The tire of the platform adopts the tire. The tire is designed into a combined structure of the tire body and the rim, wherein when the tire moves and approaches from the outer side to the inner side of the tire, the inner wall of the rim is gradually expanded, the tire and the rim can be separately peeled relative to the rim during maintenance, the rim does not need to be integrally replaced, and the maintenance and use cost of the tire is reduced; simultaneously gradually the direction installation of the tire of being convenient for on the one hand of the structural design of broad can, wheel rim and rim is dismantled, and on the other hand can be with the inside strong point of tire reasonable outside skew, has effectively increased the stability that aerial working platform chassis supported.

Description

Tire and aerial work platform

Technical Field

The utility model relates to the technical field of aerial work platform accessories, in particular to a tire and an aerial work platform.

Background

The aerial work platform is a movable aerial work product for serving aerial work, equipment installation, maintenance and the like in various industries. The bottom of the aerial platform is typically fitted with rims and tires. The tire of the existing aerial work platform is usually made of rubber, and the tire and a rim are integrally vulcanized and molded. After long-time use, the tire is worn and needs to be replaced, at the moment, the tire cannot be separated from the rim due to the fact that the tire and the rim are of an integrated structure, maintenance and replacement need to be carried out integrally, and the maintenance and use cost of the tire is high. Meanwhile, the stress of the existing tire is concentrated at the axial middle section of the tire, the supporting point is located at the middle section, and the stability of the chassis has an improved space.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: in order to overcome the defects of the prior art, the utility model provides the tire and the aerial work platform, which have the advantages of convenient tire disassembly, lower maintenance cost, effective outward expansion of the supporting point position and improvement of the chassis stability.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a tire comprising a tire body and a rim, the rim being mounted on an inner wall of the tire body and such that the tire body remains on the rim when the tire is in motion, the inner wall of the rim exhibiting a gradual expansion as the tire approaches from the outside to the inside of the tire when the tire is in motion.

In the scheme, the original integrally vulcanized tire and the original integrally vulcanized rim are skillfully separated to design the tire body and the wheel rim, the wheel rim with the gradually expanding structure is designed, the wheel rim and the wheel rim can be conveniently detached for maintenance through the gradually expanding structure, the worn tire body can be replaced as required, and the maintenance cost is reduced. Meanwhile, the design of the gradually expanding structure can outwards shift the supporting gravity center of the joint of the tire and the rim from the original middle section position, namely, the outward expansion of the gravity centers at two sides of the position of the chassis corresponding to the tire is realized, and the stability of the chassis is improved.

Preferably, in order to facilitate the installation of the rim and the tire body, the rim is integrally vulcanized and molded on the inner wall of the tire body.

Furthermore, the joint of the inner wall of the tire body and the outer wall of the rim is of a gradually expanding structure consistent with the inner wall of the rim.

Furthermore, the inclination angle alpha of the divergent structure of the inner wall of the rim is 1-10 degrees.

Further, the thickness of the rim is 0.8mm to 8 mm.

The tire of the platform adopts the tire.

The tire and the aerial work platform provided by the utility model have the beneficial effects that the structural design is reasonable, the tire is designed into a combined structure of the tire body and the rim, when the tire moves from the outer side to the inner side of the tire, the inner wall of the rim is gradually expanded, the tire and the rim can be separately peeled relative to the rim during maintenance, the rim does not need to be integrally replaced, and the maintenance and use cost of the tire is reduced; simultaneously rationally designed gradually expand the structure, gradually the direction installation of tire, wheel rim and rim of being convenient for on the one hand of the structural design of widening is dismantled, and on the other hand can be with the inside strong point of tire reasonable outside skew, has effectively increased the stability that aerial working platform chassis supported.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of the construction of a tire according to the preferred embodiment of the present invention.

Fig. 2 is a perspective view of a tire in a preferred embodiment of the utility model.

FIG. 3 is a schematic view of the structure of the preferred embodiment of the present invention in which the tire is mounted on a rim.

Fig. 4 is a cross-sectional view a-a of fig. 3.

In the figure 1, a rim 2, a rim 3 and a tyre body.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

A tire as shown in fig. 1 to 2 is a preferred embodiment of the present invention. The aerial work platform employs a tire as shown in fig. 1 and 2. The tire is arranged below the chassis of the aerial work platform. The motor is fixed on the aerial work platform chassis, the output end of the motor is in transmission connection with the speed reducer, the output end of the speed reducer is in transmission extension and is fixed with the rim 2 in the embodiment, and the speed reducer drives the rim 2 to rotate so as to realize the rotation of the tire. In this scheme, rim 2 and tire are split type design, are convenient for after the tire wearing and tearing, can dismantle alone and change the tire, and rim 2 can continue to use, has reduced aerial working platform's maintenance cost.

In order to facilitate the mounting and dismounting, the tire comprises a tire body 3 and a rim 1, wherein the tire body 3 is of an annular structure. The rim 1 is integrally vulcanized and formed on the inner wall of the annular structure. The rim 1 may preferably be 3mm to 8mm thick. When the tire moves, the inner wall of the rim 1 gradually expands when the tire approaches from the outer side to the inner side of the tire, and the joint of the inner wall of the tire body and the outer wall of the rim is of a gradually expanding structure consistent with the inner wall of the rim.

The divergent structure is embodied as follows: the inner wall of the rim 1 is of a circular table structure with an inclination angle alpha, wherein the tip position of the circular table points to the axial outer side direction of the tire; the outer peripheral surface of the rim 2 is also a circular table surface matched with the inner wall of the rim 1. The outer wall of the rim 1 is also a circular table, the inclination angle between the outer wall of the rim 1 and the radial section of the rim 1 is the same as the inclination angle degree between the circular table on the inner wall of the rim 1 and the radial section of the rim 1, and the inner wall of the tire body 3 is also a circular table matched with the circular table on the outer wall of the rim 1.

During assembly, the tire body 3 and the rim 1 are respectively processed and then integrally molded into a tire assembly through vulcanization, and the tire assembly is connected with the circular table surface on the surface of the rim 2 in a guiding mode through the circular table surface on the inner wall. In practical design, the size of the inner ring of the rim 4 is slightly smaller than that of a rim matched with the rim, and effective compression is realized by utilizing elastic deformation of the rim 4 generated by installation during installation. When the rim 2 is pressed into the rim 1 completely in the circumferential direction by externally providing axial pressing force, the circumference of the thin-walled rim is expanded by the rim and elastically deformed, so that radial pressing force is generated, and the fixed installation of the tire assembly and the rim 2 is completed.

In practical design, the included angle between the circular table surface and the side end mounting surface of the rim 2 is slightly smaller than 90 degrees. When the degree of the inclination angle alpha is 1-10 degrees, the included angle degree is 80-89 degrees. When the included angle degree is 90 degrees, the supporting gravity center at the tire is the middle section of the tire; when the included angle is larger than 90 degrees, the supporting gravity center at the position of the tire of the chassis is tightened inwards; when the included angle is smaller than 90 degrees, the supporting gravity center at the tire position of the chassis is expanded outwards, which is beneficial to increasing the stability of the chassis. However, considering that the rim 1 and the rim 2 need to be installed stably and are not easy to slip, the included angle cannot be too small, and the situation that the rim 1 is easy to fall off from the rim 2 due to too large inclination is avoided.

The tire and the aerial work platform designed in the way are reasonable in structural design, the tire assembly formed by the tire body 3 and the rim 1 can be independently peeled relative to the rim 2 during maintenance, the rim 2 does not need to be replaced, and the maintenance and use cost of the tire is reduced; simultaneously the gradually-expanding structure is reasonably designed, on one hand, the guiding installation and disassembly of the tire body 3, the rim 1 and the rim 2 can be facilitated, on the other hand, the supporting points inside the tire assembly can be reasonably and outwards deviated, and the stability of the chassis support of the aerial work platform is effectively improved.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A tire, characterized by: the wheel rim (1) is mounted on the inner wall of the tire body (3) and enables the tire body (3) to be kept on the wheel rim (1) when the tire moves, and the inner wall of the wheel rim (1) shows a gradual expansion when the tire moves from the outer side to the inner side of the tire.

2. A tyre as claimed in claim 1, wherein: the rim (1) is integrally vulcanized and formed on the inner wall of the tire body (3).

3. A tyre as claimed in claim 1, wherein: the joint of the inner wall of the tire body (3) and the outer wall of the rim (1) is of a gradually expanding structure consistent with the inner wall of the rim (1).

4. A tyre as claimed in claim 1, wherein: the inclination angle alpha of the divergent structure of the inner wall of the rim (1) is 1-10 degrees.

5. A tyre as claimed in claim 1, wherein: the thickness of the rim (1) is 0.8mm to 8 mm.

6. An aerial work platform is characterized in that: the tire of the platform is the tire of any one of claims 1 to 5.