CN109017138B - Mechanically elastic wheel with integrated elastic ring frame wheel structure - Google Patents

Abstract

The invention provides a mechanical elastic wheel with an integrated elastic ring framework and wheel-assembling structure, which comprises a wheel hub and a wheel, wherein the wheel hub and the wheel hub are sequentially arranged from inside to outside, the wheel hub is connected with the wheel hub through a plurality of elastic connecting units distributed along the circumferential direction of the wheel hub, the wheel comprises an elastic ring framework and a rubber layer, the elastic ring framework is formed by integrally forming a plurality of elastic rings arranged side by side along the axial direction of the elastic ring and a plurality of buckles fixed along the circumferential direction of the elastic ring, and the elastic ring framework is embedded into the rubber layer. The mechanical elastic wheel with the integrated elastic ring skeleton and the wheel assembling structure has good tire burst resistance and puncture resistance, the structure and the size of the mechanical elastic wheel can be subjected to parameterization design according to the rigidity requirement of the wheel, the structural strength is better, and the applicability is wider; meanwhile, the integrated elastic ring framework removes a large number of parts such as bolts and nuts, omits works such as winding and assembling, saves production cost, improves production efficiency and is convenient for mass production.

Description

Mechanically elastic wheel with integrated elastic ring frame wheel structure

Technical Field

The present invention relates to the technical field of non-pneumatic tires, and in particular to a mechanical elastic wheel with an integrated elastic ring frame wheel structure.

Background technique

As an important part of the running system of wheeled vehicles, tires are mainly used to support the mass of the vehicle, mitigate road impact, and generate driving/braking force. Their performance has a significant impact on the vehicle's handling stability and ride comfort. Vehicles equipped with pneumatic tires have the risk of puncture, deflation, and blowout. The development of safe tires with run-flat and puncture-proof properties is of great significance to improving vehicle driving safety and reliability.

The mechanical elastic wheels that have been designed so far have many parts, complex manufacturing processes, low production efficiency, and other problems, which are not conducive to the mass production of wheels, and the specifications and quality of the wheels produced are difficult to unify.

Summary of the invention

The technical problem to be solved by the present invention is to provide a mechanical elastic wheel with an integrated elastic ring frame wheel structure which can simplify the mechanical structure.

The present invention solves the above technical problems through the following technical solutions:

A mechanical elastic wheel with an integrated elastic ring skeleton reel structure comprises a hub and a reel arranged in sequence from the inside to the outside, the reel and the hub are connected by a plurality of elastic connection units distributed along the circumference of the hub, the reel comprises an elastic ring skeleton and a rubber layer, the elastic ring skeleton is integrally formed by a plurality of elastic rings arranged side by side along the axial direction of the elastic ring skeleton and a plurality of buckles fixed along the circumference of the elastic ring, and the elastic ring skeleton is buried in the rubber layer.

Preferably, at least two rows of tightly-fitting elastic rings are arranged radially along the elastic ring skeleton, and the buckle is provided with at least two rows of through holes for fixing the elastic rings radially along the elastic ring skeleton, and a plurality of through holes in each row are repeatedly arranged axially along the elastic ring skeleton.

Preferably, the elastic connection unit is a hinge set or a tension spring.

Preferably, the hinge assembly comprises at least two hinge sections connected by a pin.

Preferably, 12 to 18 buckles are evenly arranged along the circumference of the elastic ring skeleton.

Preferably, the material of the elastic ring skeleton is any one of copper, iron, aluminum, aluminum alloy, carbon fiber, and polyurethane.

Preferably, a plurality of weight-reducing holes are evenly arranged on the wheel hub.

The advantages of the mechanical elastic wheel with an integrated elastic ring skeleton wheel structure provided by the present invention are: the mechanical elastic wheel with an integrated elastic ring skeleton wheel structure has good anti-explosion and anti-puncture performance, and effectively improves the driving safety and reliability of the vehicle. The elastic ring skeleton adopts a mold integrated molding design, and has better structural strength and reliability. Its structure and size can be parameterized according to the wheel stiffness requirements, and its applicability is wider; at the same time, the integrated elastic ring skeleton removes a large number of parts such as bolts and nuts, and eliminates the tedious physical labor such as wire winding and assembly, which saves production costs and improves production efficiency, facilitating mass production. Compared with the prior art, the elastic ring is integrally molded, the structure is more compact, the stress concentration problem is alleviated, the heat dissipation performance of the elastic ring is improved, a large amount of raw materials is saved, and the lightweight level of the wheel is improved.

BRIEF DESCRIPTION OF THE DRAWINGS

1 is a schematic structural diagram of a mechanical elastic wheel with an integrated elastic ring skeleton wheel structure provided by an embodiment of the present invention (excluding rubber, the number of hinges is 18, and the number of sections is 3);

2 is a schematic structural diagram of a mechanical elastic wheel with an integrated elastic ring skeleton wheel structure provided by an embodiment of the present invention (including rubber, 18 hinges, and 3 sections);

FIG3 (a) is a front view of an elastic ring frame of a mechanical elastic wheel with an integrated elastic ring frame wheel structure provided by an embodiment of the present invention, and (b) is a side view of the elastic ring frame (the number of elastic rings is 5);

4(a) and (b) are schematic diagrams of two buckle structures of a mechanical elastic wheel with an integrated elastic ring skeleton wheel structure provided by an embodiment of the present invention (single row of 5 through holes, 2 rows);

5 is a schematic diagram of the hinge assembly structure of a mechanical elastic wheel with an integrated elastic ring skeleton reel structure provided by an embodiment of the present invention (the number of hinge sections is 3);

In the figure: 1—elastic skeleton, 2—wheel hub, 3—elastic connection unit, 4—wheel, 5—rubber layer, 6—buckle, 7—elastic ring, 8—connector, 9—weight reduction hole, 10—through hole, R—aperture, r1—radian of transition area, r2—radian of connection area.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

As shown in Figs. 1 and 2, a mechanical elastic wheel with an integrated elastic ring skeleton reel structure includes a hub 2 and a reel 4 arranged in sequence from the inside to the outside, and the hub 2 is provided with a plurality of polygonal weight-reducing holes 9. The hub 2 and the reel 4 are connected by a plurality of elastic connection units 3 distributed along the circumference of the wheel, and the reel 4 includes an elastic ring skeleton 1 and a rubber layer 5, and the elastic ring skeleton 1 is embedded in the rubber layer 5 and formed after vulcanization.

Referring to FIG3 , in order to make the structure of the elastic ring skeleton 1 more stable, the elastic ring skeleton 1 is obtained by integrating a plurality of elastic rings 7 arranged side by side along the axial direction of the elastic ring skeleton and a plurality of buckles 6 fixed along the circumference of the elastic ring through a mold. Two rows of tightly attached elastic rings 7 are arranged along the radial direction of the elastic ring skeleton 1, and the buckles 6 are arranged along the radial direction of the elastic ring skeleton 1 with two rows of through holes 10 for fixing the elastic rings 7, and each row of through holes 10 is repeatedly arranged 5 along the axial direction of the elastic ring skeleton 1. In order to facilitate the connection between the reel 4 and the wheel hub 2, the buckle 6 has a connector 8 on the side facing the wheel hub 2; the connector 8 is fixedly matched with the elastic connection unit 3. The number of buckles 6 is consistent with the number of elastic connection units 3, which is 12 to 18.

The integrally formed elastic ring skeleton 1 can be cast using metal materials such as copper, iron, aluminum, and aluminum alloys; this embodiment adopts a wax casting method to melt the metal into a liquid that meets certain requirements and pour it into a mold. After cooling, solidification, and cleaning, an elastic skeleton with a predetermined shape, size, and performance is obtained. The specific molding process is as follows: (1) Preparation of a mold (a container for liquid metal to become a solid casting), the mold adopts a metal mold, a ceramic mold, a clay mold, or a graphite mold; (2) Melting and pouring of the casting metal, the casting metal mainly includes various types of cast iron, cast steel, and cast non-ferrous metals and alloys; (3) Processing and inspection of the elastic skeleton casting, including removing cores and surface foreign matter, cutting off pouring and risers, grinding burrs and seams, and heat treatment, shaping, rust prevention, and rough processing. Of course, the elastic ring skeleton 1 can also be made of other materials such as carbon fiber and polyurethane.

Referring to FIG4 , in a preferred embodiment, the through hole 10 is circular, with a radius R of 5 to 10 mm, a transition area curvature r1 of 30 to 60 mm, a connection area curvature r2 of 10 to 20 mm between the connector 8 and the buckle 6, and each buckle 6 has two rows of through holes 10, with five through holes 10 in each row. Of course, the specific shape and size of the through hole 10 can be adjusted by a person skilled in the art as needed.

Referring to Figure 5, in a preferred embodiment, the elastic connection unit 3 is a hinge group, which includes three hinges 31 connected by hinges, and connected by pins (not shown); at this time, the elastic connection unit 3 is also fixedly connected to the connector 8 and the wheel hub 2 by pins. The elastic connection unit 3 is mainly used to buffer the bending, tension, compression, torque and other effects generated during the operation of the vehicle, so that the elastic ring skeleton can produce a certain deformation relative to the wheel hub to avoid problems such as tire punctures and blowouts, thereby improving the safety and comfort of the wheel. Of course, those skilled in the art can also use tension springs as elastic connection units. In this case, the corresponding positions of the connector 8 and the wheel hub 2 are provided with assembly holes that match the tension springs.

The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Without departing from the spirit and principles of the present invention, any modifications, equivalent substitutions, improvements, etc. made to the present invention by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims (7)

1. A mechanical elastic wheel with an integrated elastic ring framework and a wheel structure is characterized in that: the wheel comprises a wheel hub and a wheel assembly which are sequentially arranged from inside to outside, wherein the wheel assembly is connected with the wheel hub through a plurality of elastic connecting units distributed along the circumferential direction of the wheel hub, the wheel assembly comprises an elastic ring framework and a rubber layer, the elastic ring framework is formed by integrally forming a plurality of elastic rings which are axially arranged side by side along the elastic ring framework and a plurality of buckles which are circumferentially fixed along the elastic rings, and the elastic ring framework is embedded into the rubber layer;

in order to facilitate the connection of the software wheel and the hub, one side of the buckle, facing the hub, is provided with a connector, and the connector is fixedly matched with the elastic connection unit.

2. A mechanomotive wheel having an integrated elastomeric ring skeleton and wheel structure according to claim 1, wherein: at least two rows of closely attached elastic rings are arranged along the radial direction of the elastic ring framework, at least two rows of through holes for fixing the elastic rings are arranged along the radial direction of the elastic ring framework, and a plurality of through holes are repeatedly arranged along the axial direction of the elastic ring framework.

3. A mechanomotive wheel having an integrated elastomeric ring skeleton and wheel structure according to claim 1, wherein: the elastic connection unit is a hinge group or a tension spring.

4. A mechanomotive wheel having an integrated elastic ring skeleton and wheel structure according to claim 3, wherein: the hinge group comprises at least two hinges connected through pins.

5. The mechanomotive wheel with integrated elastic ring skeleton and wheel structure according to claim 1, wherein: the buckles are uniformly arranged in 12-18 along the circumferential direction of the elastic ring framework.

6. The mechanomotive wheel with integrated elastic ring skeleton and wheel structure according to claim 1, wherein: the elastic ring framework is made of any one of copper, iron, aluminum alloy, carbon fiber and polyurethane.

7. The mechanomotive wheel with integrated elastic ring skeleton and wheel structure according to claim 1, wherein: the hub is uniformly provided with a plurality of lightening holes.