CN212765468U

CN212765468U - Spring tyre

Info

Publication number: CN212765468U
Application number: CN202020740756.0U
Authority: CN
Inventors: 谷小军; 李城彬; 朱继宏; 王骏; 张亚辉; 张卫红
Original assignee: Northwestern Polytechnical University
Current assignee: Northwestern Polytechnical University
Priority date: 2020-05-07
Filing date: 2020-05-07
Publication date: 2021-03-23
Anticipated expiration: 2030-05-07

Abstract

The utility model discloses a spring tire, including wheel hub and spring child, the spring child is woven by an at least coil spring and is formed, and it is cyclic annular to the overcoat install in wheel hub. Different from the prior art, the spring tire of the spring tire provided by the utility model is annular, and when in use, the spring tire can be directly sleeved on the hub without other connecting pieces, so that the structure of the hub and the mounting structure of the hub and the spring tire can be greatly simplified, the production and mounting efficiency can be improved, and the weight of the spring tire can be lighter; in addition, the spring tire is woven by adopting the spiral springs to replace a conventional rubber pneumatic tire, and the problems that the conventional rubber pneumatic tire is easy to lose efficacy and has a short service life in a space environment and the like can be solved; moreover, compared with a metal tire, the spring tire also has the advantages of strong bearing capacity, capability of absorbing impact, reduction of vibration, capability of providing a stable and safe working environment for vehicle-mounted personnel and equipment and the like.

Description

Spring tyre

Technical Field

The utility model relates to a tire technical field, concretely relates to spring tire.

Background

The probe vehicle (or named as a patrol device) is a vehicle used for moving on the surface of a planet or other celestial bodies in space exploration, and comprises a vehicle body and tires arranged on the vehicle body.

At present, a metal tire is also used for the space probe vehicle, but the metal tire has weak elasticity, needs a specific mechanical structure to normally work when facing complex road conditions, cannot recover once the common metal tire generates plastic deformation, and has short service life.

Chinese patent No. ZL2010800237178 discloses a "non-pneumatic tire including a coil spring", which can solve the problem of using the tire in space, but requires a hub having a complicated structure for fitting, and many parts for connection between the hub and the spring tire, resulting in an excessively complicated overall structure of the tire.

Therefore, how to provide a solution to overcome the above-mentioned drawbacks remains a technical problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a spring tire, its spring child is the annular, can direct overcoat install in wheel hub, and wheel hub's structure and wheel hub and spring child's mounting structure all can simplify by a wide margin, are favorable to improving production and installation effectiveness, and are convenient for maintain.

In order to solve the technical problem, the utility model provides a spring tire, including wheel hub and spring child, the spring child is woven by an at least coil spring and is formed, and it is cyclic annular to the overcoat install in wheel hub.

Be different from prior art, the utility model provides a spring tire's whole annular that is of spring tire, when using, it can direct overcoat install in wheel hub, need not other connecting piece, and wheel hub's structure and wheel hub and spring tire's mounting structure all can simplify by a wide margin, are favorable to improving production and installation effectiveness to be convenient for maintain, and spring tire's weight also can be lighter.

In addition, the spring tire is woven by adopting the spiral springs to replace a conventional rubber pneumatic tire, and the problems that the conventional rubber pneumatic tire is easy to lose efficacy and has a short service life in a space environment and the like can be solved; compared with a metal tire, the spring tire is formed by combining a plurality of spiral springs, can bear larger weight, can fully absorb impact even if the spring tire touches rugged terrain when performing a search task, reduces vibration, provides a stable and safe working environment for vehicle-mounted personnel and equipment, and can improve the overall durability of the space probe vehicle; meanwhile, the spring tire enables the space probe vehicle to normally work without being assisted by a specific mechanical structure, so that the design cost and the complexity of the space probe vehicle are reduced, and the possibility is provided for modular design and light-weight design of the probe vehicle.

Optionally, the spring tyre comprises at least one layer of tyre units, which are also annular and are woven from at least one of the coil springs.

Optionally, when a plurality of the tire units are provided, each tire unit is sleeved layer by layer, and at least the radial section of the tire unit which is not the innermost layer is in a closed ring shape.

Optionally, the tire unit is formed by end-to-end butting of annular cylinders formed by weaving the spiral springs.

Optionally, the annular column further comprises a butt-joint spiral spring, and the butt-joint spiral spring is used for connecting the head end and the tail end of the annular column.

Optionally, the outer side of the spring tyre is provided with a coating layer.

Optionally, the coil spring is overcoated with a wear resistant coating.

Optionally, the material of the coil spring includes, but is not limited to, the following materials: steel, aluminum, titanium, polymers, ceramics, Ti-Ni alloys.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of a spring tire provided in the present invention;

FIG. 2 is a schematic view of the construction of the coil spring as it begins to weave the tire unit;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a schematic view of the construction of the coil spring at the beginning of the braiding of the tire unit in the axial direction;

FIG. 5 is a schematic structural view of an axially extending annular post woven from a coil spring;

fig. 6 is a schematic structural view of the tire unit.

The reference numerals in fig. 1-6 are illustrated as follows:

1, a hub;

2 spring tyre, 21 spiral spring.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1-6, fig. 1 is a schematic structural diagram of a spring tire according to an embodiment of the present invention, fig. 2 is a schematic structural diagram of a coil spring when the tire unit starts to be woven, fig. 3 is a top view of fig. 2, fig. 4 is a schematic structural diagram of a coil spring when the tire unit starts to be woven in an axial direction, fig. 5 is a schematic structural diagram of an axially extending annular cylinder woven by the coil spring, and fig. 6 is a schematic structural diagram of the tire unit.

As shown in fig. 1 and 6, the utility model provides a spring tire, including wheel hub 1 and spring tire 2, spring tire 2 is woven by an at least coil spring 21 and forms, and this spring tire 2 is cyclic annular to the overcoat is installed in wheel hub 1.

Be different from prior art, the utility model provides a spring tire's 2 whole are the annular, and when using, it can direct overcoat install in wheel hub 1, need not other connecting piece, and wheel hub 1's structure and wheel hub 1 and spring tire 2's mounting structure all can be simplified by a wide margin, are favorable to improving production and installation effectiveness to be convenient for maintain, and spring tire's weight also can be lighter. The mounting mode of the spring tyre 2 and the hub 1 can be interference fit, so that the connection reliability between the spring tyre and the hub is improved.

In addition, the spring tire adopts the spring tire 2 woven by the spiral springs 21 to replace the conventional rubber pneumatic tire, and can also solve the problems that the conventional rubber pneumatic tire is easy to lose efficacy, has short service life and the like in the space environment; moreover, compared with a metal tire, the spring tire 2 of the spring tire in the embodiment of the utility model is formed by combining a plurality of spiral springs 21, which can bear larger weight, when the exploration task is executed, even if the rugged terrain is touched, the spring tire 2 can also fully absorb impact, reduce vibration, provide stable and safe working environment for vehicle-mounted personnel and equipment, and improve the overall durability of the space exploration vehicle; meanwhile, the spring tire enables the space probe vehicle to normally work without being assisted by a specific mechanical structure, so that the design cost and the complexity of the space probe vehicle are reduced, and the possibility is provided for modular design and light-weight design of the probe vehicle.

It should be emphasized that, although the design of the spring tire provided by the present invention is originally intended to provide a tire that can be used in space environment, this does not mean that the spring tire can only be applied in space environment, in other environments such as the earth, the present invention provides a spring tire that can be applied equally, that is, the application environment can not be used as the limitation of the application range of the spring tire provided by the present invention.

In addition, the embodiment of the present invention does not limit the structure of the wheel hub 1, and in the specific implementation, a person skilled in the art can design according to actual needs, or, design with reference to the accompanying drawings, but it should be understood that the scheme in the embodiment of the accompanying drawings is only an exemplary choice, and cannot be taken as a limitation to the implementation range of the spring tire provided by the present invention, and the wheel hub 1 may also adopt other forms of structures under the condition of satisfying the function.

In a specific embodiment, the spring tire 2 may include at least one layer of tire units, as shown in fig. 6, each layer of tire units may also be annular, and each layer of tire units is formed by weaving at least one coil spring 21.

Fig. 2 to 6 show a knitting process of a tire unit, as shown in fig. 2 to 3, in which a unit ring having a specific radial dimension (fitting to the hub 1) is first knitted with one coil spring 21, and in the course of knitting the unit ring, if the length of one coil spring 21 is insufficient, a plurality of coil springs 21 may be used for connection; as shown in fig. 4, after the unit circle is knitted, the remaining portion of the coil spring 21 (if the remaining portion is short in length, a new coil spring 21 is taken out) is continued to be wound and knitted in the axial direction on the basis of the unit circle to form an annular cylinder shown in fig. 5; when the length of the annular cylinder is sufficient (matching with the hub 1), the annular cylinder can be bent and butted end to form a tire unit, and the structure of the tire unit can also refer to fig. 6.

When in butt joint, a special butt joint spiral spring can be arranged, and the head end and the tail end of the annular column body are connected through the butt joint spiral spring; alternatively, the head end of the annular column may be directly connected to the coil spring 21 at the tail end of the annular column.

It should be noted that the head and the tail of the annular column are determined in the knitting direction, and with fig. 5 as a view, if the annular column is knitted from left to right, the left side of the annular column is the head, and the right side is the tail.

The number of the tire units can be one or more, and when the number of the tire units is more than one, each tire unit can be sleeved layer by layer, and the radial section of at least the tire unit which is not the innermost layer can be in a closed ring shape so as to accommodate the tire unit which is positioned in the inner layer.

Aiming at the scheme of the multi-layer tire units, during processing, the annular cylinders of all the tire units can be respectively woven, then all the annular cylinders are sleeved layer by layer, then all the sleeved annular cylinders are integrally bent, and the head end and the tail end of each annular cylinder are butted layer by layer from inside to outside; alternatively, the innermost tire unit may be woven, and then the tire units of the other layers may be wound and woven layer by layer on the basis of the innermost tire unit.

Here, the embodiment of the present invention does not limit the specific shape of the spring tire 2, and the spring tire may be a circular ring, or may be another annular structure such as an elliptical ring, and is specifically related to the structure of the hub 1, so as to adapt to different terrains.

The outside at spring child 2 can also be equipped with the coating (not shown in the figure), and this coating can produce the restraint to the external shape of spring child 2 to can protect each coil spring 21 in spring child 2, avoid coil spring's damage to a great extent, and this coating is favorable to increasing coefficient of friction, and then increases traction force.

The coil springs 21 may also be coated with a wear resistant coating (not shown) that changes the coefficient of friction of the coil springs 21, thereby reducing wear of the coil springs 21 during weaving and during use.

The material of the coil spring 21 is not limited herein, and in the specific implementation, a person skilled in the art can determine the material according to actual needs. The material of the coil spring 21 may be any one of steel, aluminum, titanium, polymer, ceramic, and Ti — Ni alloy, for example. In addition, the specifications of the coil spring 21, such as length and pitch, are not limited herein, and may be determined according to actual needs.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The spring tire comprises a hub (1) and a spring tire (2), and is characterized in that the spring tire (2) is formed by weaving at least one spiral spring (21) in a ring shape, and is sleeved on the hub (1).

2. Spring tyre according to claim 1, characterized in that said spring tyre (2) comprises at least one layer of tyre elements, also annular, braided from at least one of said helical springs (21).

3. The spring tire according to claim 2, wherein when the tire unit is a plurality of tire units, each tire unit is sleeved layer by layer, and at least the tire unit of the non-innermost layer has a closed ring shape in radial section.

4. The spring tire of claim 2, wherein the tire unit is formed by end-to-end joining of annular columns woven from the coil springs.

5. The spring tire of claim 4, further comprising a butt coil spring for connecting the two ends of the annular cylinder.

6. Spring tyre according to any one of claims 1 to 5, characterized in that the spring tyre (2) is provided on its outside with a coating.

7. Spring tyre according to any one of claims 1 to 5, characterized in that said helical springs (21) are externally coated with a wear-resistant coating.

8. Spring tyre according to any one of claims 1 to 5, characterized in that the material of the helical spring (21) is any one of steel, aluminium, titanium, polymer, ceramic, Ti-Ni alloy.