CN115257227A

CN115257227A - Bionic horn spoke type non-inflatable wheel

Info

Publication number: CN115257227A
Application number: CN202211020283.7A
Authority: CN
Inventors: 李田; 赵又群; 李丹阳; 林棻
Original assignee: Nanjing University of Aeronautics and Astronautics
Current assignee: Nanjing University of Aeronautics and Astronautics
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2022-11-01

Abstract

The invention provides a bionic claw spoke type non-inflatable wheel which comprises a wheel hub, a bionic claw spoke and an elastic ring framework which are sequentially connected from inside to outside, wherein a tensioning covered rubber ring is arranged on the elastic ring framework; the elastic ring framework comprises snap rings and elastic rings, the snap rings are arranged at equal intervals along the circumferential direction, holes are formed in the snap rings, and the elastic rings are inserted into the holes in the snap rings at equal intervals to form the circular framework; the outer side surface of the bionic claw spoke is in a wide arc shape, the inner side surface of the bionic claw spoke is flat, and the inner side and the outer side of the bionic claw spoke are smoothly connected; the cross section area of the spoke at the contact part of the bionic claw spoke and the wheel hub is the largest, the cross section area of the spoke is gradually reduced along the radial direction of the tire, and the tail end of the bionic claw spoke is fixedly connected with the clamping ring. The invention has the advantages of explosion prevention, puncture prevention and shock resistance, can bear larger radial load, and meets the requirement of light weight due to the hollow design of the inside of the spoke.

Description

Bionic claw spoke type non-inflatable wheel

Technical Field

The invention relates to the technical field of non-inflatable wheels, in particular to a bionic claw spoke type non-inflatable wheel.

Background

The inflatable tire adopted by the traditional vehicle is easy to have the problems of tire burst, unstable tire pressure and the like when the vehicle works under high-speed heavy load or severe working conditions, and brings great hidden danger to the safety of a driver.

Non-pneumatic tires eliminate the use of compressed air as an important component of a pneumatic tire and have instead been designed to integrate the tire with the rim. The rim and the resilient spokes thereof can be deformed to reduce vibration and can rebound very easily to absorb energy from ground bumps. Compared with the common tire, the non-inflatable tire has the functions of maintenance free, tire burst free and leakage free because the inflation requirement of the conventional tire is not needed and the rim of the conventional tire is not needed. In addition, when the non-pneumatic tire is subjected to impact load in the longitudinal direction, the supporting structure in the non-pneumatic tire can have a much larger deformation amount compared with a common pneumatic tire, so that the road surface impact transmitted to a suspension and a vehicle body through the tire on a rugged road surface is relieved, and the comfort performance of a vehicle is improved.

The existing non-pneumatic tire structure has the defects of poor bearing capacity to radial load, insufficient shock resistance, complex structure, large weight and the like.

The horn-shaped spoke type non-inflatable wheel based on the bionic design has the advantages of explosion prevention and pricking prevention, can bear larger radial load, and meets the requirement of light weight due to hollow design of the inside of the spoke.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a bionic horn spoke type non-inflatable wheel which has the advantages of explosion prevention, pricking prevention and shock prevention, can bear larger radial load, and meets the requirement of light weight due to hollow design of the inside of a spoke.

A bionic claw spoke type non-inflatable wheel comprises a wheel hub, a bionic claw spoke and an elastic ring framework which are sequentially connected from inside to outside, wherein a rubber ring covered in a tensioning manner is arranged on the elastic ring framework; the elastic ring framework comprises snap rings and elastic rings, the snap rings are arranged at equal intervals along the circumferential direction, holes are formed in the snap rings, and the elastic rings are inserted into the holes in the snap rings at equal intervals to form the circular framework; the outer side surface of the bionic claw spoke is in a wide arc shape, the inner side surface of the bionic claw spoke is flat, and the inner side and the outer side of the bionic claw spoke are smoothly connected; the cross section area of the spoke at the contact part of the bionic claw spoke and the wheel hub is the largest, the cross section area of the spoke is gradually reduced along the radial direction of the tire, and the tail end of the bionic claw spoke is fixedly connected with the clamping ring.

Further improved, each pair of bionic claw spokes are spaced by 60 degrees, and 6 groups are provided in total along the circumferential direction.

In a further improvement, the snap rings are spaced at 60 degrees and have 6 groups in the circumferential direction. Five holes are formed in the clamping ring at equal intervals, and the number of the elastic rings is the same as that of the holes of the clamping ring. Two pairs of pin lugs are arranged below the clamping ring, and the clamping ring is fixedly connected with the bionic claw spokes through the pin lugs and the stud bolts.

The technological process of the non-pneumatic wheel comprises the steps of embedding a part of the elastic ring framework and the snap ring into rubber, and molding after vulcanization treatment.

The invention has the beneficial effects that:

1. the spiral taper shape configuration of goat's horn can effectively cushion the impact force when colliding, and goat's horn inner core cavity is divided into the multi-chamber structure by the spine wishbone, can bear great radial load.

2. The hollow inside meets the requirement of light weight.

3. The non-inflatable structure is adopted, and the anti-explosion and anti-prick device has the advantages of explosion prevention and anti-prick.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the appearance of a bionic horn spoke type non-pneumatic wheel;

FIG. 2 is a schematic view of a skeleton of a bionic horn-spoke type non-pneumatic wheel;

FIG. 3 is a schematic diagram of a rubber ring of a bionic claw-spoke type non-pneumatic wheel;

FIG. 4 is a schematic diagram of a spoke structure of a bionic claw-spoke type non-pneumatic wheel;

FIG. 5 is a schematic view of a snap ring of a bionic claw-spoke type non-pneumatic wheel.

In the figure, 1-snap ring, 2-elastic ring and 3-bionic claw spoke.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and 2, the present embodiment adopts the following technical means. The combined electric wheel based on the non-inflatable structure comprises the following components: snap ring 1, elastic ring 2, bionical goat's horn spoke 3, wheel hub and rubber circle are constituteed. The bionic horn spoke 3 is designed according to the configuration of the horn cross section and the growth line; the snap rings 1 are arranged at equal intervals along the circumferential direction, holes are formed in the snap rings 1, and the elastic rings 2 are inserted into the holes in the snap rings at equal intervals to form a circular framework; the rubber ring is tensioned and covered on the elastic ring framework.

It should be noted that, referring to fig. 2 and 3, the process flow of the non-pneumatic wheel is to embed a part of the elastic ring skeleton and the snap ring into the rubber, and then to form the non-pneumatic wheel after vulcanization.

It is worth noting that, referring to fig. 4, the cross section of the bionic claw spoke refers to the section of a claw sheath, the outer side surface is in a wide arc shape, the inner side surface is flat, and the inner side and the outer side are smoothly connected; the spoke is in a claw spiral conical shape, the cross section area of the spoke at the contact part with the hub is the largest, and the cross section area of the spoke is gradually reduced along the radial direction of the tire; the spoke has a radian similar to a goat horn, and the tail end of the spoke is provided with a pin lug fixedly connected with the clamping ring; the bionic claw spokes are spaced by 60 degrees in each pair, and 6 groups are provided in total along the circumferential direction.

It is noted that, referring to fig. 5, the snap rings are spaced at 60 ° intervals, and there are 6 sets in the circumferential direction; the snap ring is provided with holes 5 at equal intervals, and the number of the elastic rings is the same as that of the snap ring holes; two pairs of pin lugs are arranged below the clamping ring, and the clamping ring is fixedly connected with the bionic claw spoke by a stud bolt.

This embodiment imitates goat's horn structural design spoke formula non-pneumatic wheel, the impact force when the spiral taper shape configuration of goat's horn can effectively cushion the collision, and goat's horn inner core cavity is divided into the multi-chamber structure by the ridge-shaped fork bone, has taken into account the lightweight of structure when guaranteeing mechanical strength, bionical goat's horn spoke can bear great radial load, and its inside cavity has realized the requirement of lightweight. The non-pneumatic wheel has the advantages of explosion resistance and puncture resistance, and is suitable for designing and manufacturing vehicle tires under heavy load requirements and severe working conditions.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the apparatus embodiment, the above is only a preferred embodiment of the present invention, and since it is basically similar to the method embodiment, it is described simply, and the relevant points can be referred to the partial description of the method embodiment. The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily made by those skilled in the art within the technical scope of the present invention will be covered by the present invention without departing from the principle of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. The utility model provides a non-pneumatic wheel of bionical goat's horn spoke formula which characterized in that: the bionic claw wheel comprises a wheel hub, a bionic claw wheel spoke and an elastic ring framework which are sequentially connected from inside to outside, wherein a rubber ring covered by tensioning is arranged on the elastic ring framework; the elastic ring framework comprises snap rings and elastic rings, the snap rings are arranged at equal intervals along the circumferential direction, holes are formed in the snap rings, and the elastic rings are inserted into the holes in the snap rings at equal intervals to form the circular framework; the outer side surface of the bionic claw spoke is wide and arc-shaped, the inner side surface of the bionic claw spoke is flat, and the inner side and the outer side of the bionic claw spoke are smoothly connected; the cross section area of the spoke at the contact part of the bionic claw spoke and the wheel hub is the largest, the cross section area of the spoke is gradually reduced along the radial direction of the tire, and the tail end of the bionic claw spoke is fixedly connected with the clamping ring.

2. The bionic claw-spoke type non-pneumatic wheel as claimed in claim 1, wherein: the bionic claw spokes are spaced by 60 degrees in each pair, and 6 groups are provided in total along the circumferential direction.

3. The bionic horn-spoke type non-pneumatic wheel of claim 1, characterized in that: the snap rings are spaced at 60 degrees, and the number of the snap rings is 6.

4. The bionic claw-spoke type non-pneumatic wheel as claimed in claim 1, wherein: five holes are formed in the clamping ring at equal intervals, and the number of the elastic rings is the same as that of the holes of the clamping ring.

5. The bionic claw-spoke type non-pneumatic wheel as claimed in claim 1 or 4, wherein: two pairs of pin lugs are arranged below the clamping ring, and the clamping ring is fixedly connected with the bionic claw spokes through the pin lugs and the stud bolts.