CN106915203B - Non-pneumatic low-speed off-road vehicle tires - Google Patents

Abstract

The invention discloses a non-pneumatic low-speed off-road vehicle tire, which solves the problems of easy tire blowout, short service life and high cost in the prior art. It has the advantages of simple structure, easy maintenance and replacement, and can effectively avoid The effect of complex road conditions on tire damage; its technical solution is: including a rim, an inner ring and an outer ring formed by connecting end-to-end tread units, and the inner ring is connected to the rim and the outer ring through a number of gas springs , After the compressed tread unit leaves the ground when the tire is rolling, the gas spring springs up automatically.

Description

Non-pneumatic low-speed off-road vehicle tires

technical field

The invention relates to the field of automobile tires, in particular to a non-pneumatic low-speed off-road automobile tire.

Background technique

An off-road vehicle is a car specially designed for off-road, which can adapt to various road conditions in the field. Off-road tires are tires suitable for driving in the wild. Due to the very complicated road conditions in the field, the tread is easy to wear, and the carcass is not resistant to puncturing and cutting. It is very easy to cause the tire to be scrapped due to puncturing and cutting in the early stage, which will affect the service life of the tire and cause great damage to the driving of the vehicle. Security risks. Although there are non-inflatable tires to make up for many of the above-mentioned shortcomings, most of the non-inflatable tires still have a lot of shortcomings in service life and elasticity, or they are expensive.

To sum up, in the prior art, there is still no effective solution to the problem of how to avoid tire damage and increase the service life of the tire.

Contents of the invention

In order to overcome the deficiencies of the prior art, the present invention provides a non-pneumatic low-speed off-road vehicle tire, which has the advantages of simple structure, easy maintenance and replacement, and can effectively avoid damage to the tire caused by complex road conditions.

The present invention adopts following technical scheme:

Non-pneumatic low-speed off-road vehicle tires, including a rim, an inner ring, and an outer ring formed by connecting end-to-end tread units. The inner ring, the rim, and the outer ring are connected by a number of gas springs, and the tire is compressed when it rolls After the tread unit leaves the contact surface, the gas spring automatically springs up; when the tire rolls, the driving force, braking force, and steering force of the tire are realized by the tread unit and the gas spring.

Further, one end of the tread unit is provided with a protrusion, and the other end is provided with a groove, and the tread units are connected together to form a combined tire by inserting the protrusion into the groove of an adjacent tread unit.

Further, the outer surface of the tread unit is covered with a layer of tread rubber, which forms the pattern of the tire.

Further, a movement gap is provided between the tread units, so that the tire can roll smoothly.

Further, the inner side of the tread unit is provided with a tread unit connecting plate, and the described tread unit connecting plate is provided with several bolts I, and the bolts I are inserts; the two of the tread unit connecting plate There are reinforcing ribs on the side, and the reinforcing ribs can play a role of local support, so that the pressure of the tire contact area can be evenly distributed.

Further, the material of the tread unit connection plate is rubber.

Further, the inner ring is composed of two symmetrical ring parts, the inner ring is provided with an inner ring connection plate in the circumferential direction, and the inner ring connection plate is provided with grooves equal to the number of gas springs. The cylinder body is clamped in the groove, and the outside of the groove is provided with some bolt holes I. Through the inner ring, the circumferential gas springs can be connected to enhance the overall stability of the tire.

Further, a rim connection plate is provided on the outer circumference of the rim, and a number of bolts II are provided on the rim connection plate, and the bolts II are inserts; the inner side of the rim is provided with a wheel , the wheel disc is an insert, embedded in the rim; the center of the wheel disc is provided with a shaft hole, and the outer side of the shaft hole is provided with a screw hole, and the wheel shaft is connected to the tire through the shaft hole and the screw hole to transmit power.

Further, the top, middle and bottom of the gas spring are sequentially provided with a gas spring top connection plate, a gas spring middle connection plate and a gas spring bottom connection plate, and the gas spring top connection plate, the gas spring middle connection plate and the gas spring Bolt hole II is provided on the bottom connection plate.

Further, the tread unit connection plate is connected with the top connection plate of the gas spring by inserting the bolt I on it into the bolt hole II on the top connection plate of the gas spring.

Further, the connection plate in the middle part of the gas spring is connected with the connection plate of the inner ring by screws.

Further, the rim connecting plate is connected with the bottom connecting plate of the gas spring by inserting the bolt II on it into the bolt hole II on the connecting plate at the bottom of the gas spring.

Compared with prior art, the beneficial effect of the present invention is:

(1) The non-pneumatic low-speed off-road vehicle tire of the present invention adopts the tread unit of unit combination type, and its production technology and process are greatly simplified compared with pneumatic tires, only need to prepare core components such as air spring, tread unit, tread unit and The vulcanization of the inner ring can be completed on a small vulcanizer, which can save a lot of equipment investment and reduce production difficulty;

(2) Compared with the complex structure of traditional tires, the present invention has simple structure, less types of parts and convenient maintenance;

(3) The present invention has neither the inflation requirements of traditional tires nor the rims of traditional tires. Compared with ordinary tires, it has the characteristics of no air leakage and no blowout, which fully avoids the possibility of tires being punctured and completely Solve the problem of easy air leakage and blowout of traditional pneumatic tires;

(4) When the present invention is subjected to impact loads in the longitudinal direction, its internal support structure can produce much larger deformation than ordinary pneumatic tires through gas springs, thereby reducing the road impact of rough roads transmitted to suspension and vehicle body through tires , improve the comfort of the vehicle;

(5) The gas spring of the present invention is a metal structure, has relatively high strength and rigidity, can bear heavy loads, and is not easily damaged when running in the field.

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide further understanding of the present application, and the schematic embodiments and descriptions of the present application are used to explain the present application, and do not constitute an improper limitation of the present application.

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is the structural representation of tread unit of the present invention;

Fig. 3 is a structural schematic diagram of the inner ring of the present invention;

Fig. 4 is the structural representation of gas spring of the present invention;

Fig. 5 is a schematic structural view of the wheel rim of the present invention;

In the figure: 1-tread unit, 2-inner ring, 3-gas spring, 4-screw, 5-rim, 6-axle hole, 7-screw hole, 8-reinforcing rib, 9-tread unit connection plate , 10-Bolt I, 11-Inner ring connection plate, 12-Bolt hole I, 13-Bolt hole II, 14-Gas spring top connection plate, 15-Gas spring middle connection plate, 16-Gas spring bottom connection plate, 17 - rim connection plate, 18 - bolt II, 19 - wheel disc.

Detailed ways

It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

As introduced in the background technology, there are deficiencies in the prior art that tires are prone to blowout, short service life, and high cost. In order to solve the above technical problems, this application proposes a non-pneumatic low-speed off-road vehicle tire.

In a typical implementation of the present application, as shown in Figures 1-5, a non-pneumatic low-speed off-road vehicle tire is provided, including a rim 5, an inner ring 2 and a tire formed by connecting several tread units 1 end to end. The outer ring, the inner ring 2, the rim 5, and the outer ring are connected by several gas springs 3 arranged at equal intervals.

This application only needs to prepare core components such as gas spring 3 and tread unit 1, and the production process and process are greatly simplified compared with pneumatic tires. The vulcanization of tread unit 1 and inner ring 2 can be completed on a small vulcanizer, which can save A large amount of equipment investment and reduce production difficulty.

When the tire is under load and rolls on the road surface, the tread unit 1 in the ground contact area and the gas spring 3 supported inside will roll with the tire, and after the compressed tread unit 1 leaves the ground contact surface, the gas spring 3 will automatically spring up; When the tire rolls, the driving force, braking force, steering force, etc. of the tire are realized by the tread unit 1 and the gas spring 3 .

One end of the tread unit 1 is provided with a protrusion, and the other end is provided with a groove, and the tread units 1 are connected together to form a combined tire by inserting the protrusion into the groove of an adjacent tread unit 1; The radius of curvature of the unit 1 is the radius of the tire, and the number of the tread units 1 is the number of segments of the outer ring of the tire; the tread unit 1 is detachable, and the replacement of a single tread unit 1 is convenient and quick, thereby extending The service life of the tire is greatly reduced, and the cost of tire manufacturing and use is greatly reduced.

The outer surface of the tread unit 1 is covered with a layer of tread rubber, which forms the pattern of the tire.

A movement gap is provided between the tread units 1 so that the tire can roll smoothly.

The inner side of the tread unit 1 is provided with a tread unit connection plate 9, and each tread unit 1 is provided with two tread unit connection plates 9, so as to facilitate the cooperation of the inner ring connection plate 11 on the inner ring 2; The tread unit connection plate 9 is a cylindrical boss, and the tread unit connection plate 9 is provided with a number of bolts I10, and the bolts I10 are inserts embedded in the tread unit connection plate 9; Reinforcement ribs 8 are provided on both sides of the surface unit connection plate 9, and the reinforcement ribs 8 can play a role of local support, so that the pressure in the ground contact area of the tire can be evenly distributed.

The inner ring 2 is composed of two symmetrical annular parts, and the inner ring 2 is provided with an inner ring connection plate 11 in the circumferential direction, and the inner ring connection plate 11 is a rectangular boss; the inner ring connection plate 11 The inner side (the side opposite to the edge of the tire) is provided with the same number of grooves as the gas spring 3, one side of the groove is an open end, and the other side is an arc-shaped cross section; the body of the gas spring 3 is just stuck Installed in the groove, the outside of the groove is provided with some bolt holes I12. Through the inner ring 2, the gas springs 3 in the circumferential direction on one side can be connected to play a role in strengthening the overall stability of the tire.

The outer circumference of the rim 5 is provided with a rim connecting plate 17, and the described rim connecting plate 17 is provided with a number of bolts II18, and the bolts II18 are inserts embedded in the rim connecting plate 17; The inner side of the rim 5 is provided with a wheel 19, the wheel 19 is an insert, embedded in the rim 5, the center of the wheel 19 is provided with a shaft hole 6, and the outer circumference of the shaft hole 6 is provided with a screw hole 7 , the wheel shaft is connected to the tire through the shaft hole 6 and the screw hole 7 to transmit power.

The top of the gas spring 3, the piston rod head of the gas spring 3 and the bottom of the gas spring 3 are successively provided with a gas spring top connection plate 14, a gas spring middle connection plate 15 and a gas spring bottom connection plate 16, and the gas spring top is The connection plate 14, the gas spring middle connection plate 15 and the gas spring bottom connection plate 16 are cylindrical bosses; the gas spring top connection plate 14, the gas spring middle connection plate 15 and the gas spring bottom connection plate 16 are provided with bolt holes II13 .

By using the gas spring 3 as the internal support, there is no need for inflation of traditional tires, and there is no rim of traditional tires. Compared with ordinary tires, it has the characteristics of no air leakage and no blowout, which fully avoids the possibility of tires being punctured. Possibility, completely solve the problem of traditional pneumatic tires easy to leak and blow out.

The described tread unit connection plate 9 is inserted into the bolt hole II on the top connection plate 14 of the gas spring through the bolt I10 on it to be connected with the top connection plate 14 of the gas spring. The number of screws on the tread unit connection plate 9 is the same as that of the gas spring The number of bolt holes II on the top connection plate 14 is the same.

The gas spring middle connection plate 15 is connected to the inner ring connection plate 11 by screws 4, and the gas spring middle connection plate 15 corresponds to the bolt holes II on the inner ring connection plate 11 and has the same number.

The rim connection plate 17 is inserted into the bolt hole II on the bottom connection plate 16 of the gas spring through the bolt II18 on it to connect with the bottom connection plate 16 of the gas spring, and the number of bolts on the rim connection plate 17 is connected to the bottom of the gas spring. The number of bolt holes II on the disc 16 is the same.

The tread unit 1 is made of rubber material, and the material of the inner ring 2 and the rim 5 is polyurethane elastomer.

The material of described gas spring 3 and wheel disc 19 is aluminum alloy, has quite high intensity and rigidity, can bear heavier load, is also difficult to be damaged when running in the field; A much larger amount of deformation, thus reducing the road impact transmitted to the suspension and the body through the tires on rough roads, and improving the comfort of the vehicle.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, there may be various modifications and changes in the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included within the protection scope of this application.

Claims (7)

1. The non-inflatable low-speed off-road vehicle tire is characterized by comprising a rim, an inner ring and an outer ring formed by connecting a plurality of tread units end to end, wherein the inner ring is connected with the rim and the outer ring through a plurality of gas springs, and the compressed tread units automatically spring up after leaving a ground contact surface when the tire rolls;

the inner ring consists of two symmetrical annular parts, an inner ring connecting disc is arranged in the circumferential direction of the inner ring, grooves with the same number as the gas springs are formed in the inner ring connecting disc, the cylinder bodies of the gas springs are clamped in the grooves, and a plurality of bolt holes I are formed in the outer sides of the grooves;

one end of each tread unit is provided with a bulge, the other end of each tread unit is provided with a groove, and the tread units are connected together by inserting the bulges into the grooves of the adjacent tread units;

the inner side of the tread unit is provided with a tread unit connecting disc, and the tread unit connecting disc is provided with a plurality of bolts I; and reinforcing ribs are arranged on two sides of the tread unit connecting disc.

2. The non-pneumatic low speed off-road vehicle tire of claim 1, wherein a running clearance is provided between the tread elements.

3. The non-inflatable low-speed off-road vehicle tire according to claim 1, wherein a rim connecting disc is arranged on the outer circumference of the rim, and a plurality of bolts II are arranged on the rim connecting disc; the inner side of the rim is provided with a wheel disc, and the center of the wheel disc is provided with a shaft hole.

4. The non-pneumatic low speed off-road vehicle tire of claim 1, wherein the top, middle and bottom of the gas spring are sequentially provided with a gas spring top land, a gas spring middle land and a gas spring bottom land, and the gas spring top land, the gas spring middle land and the gas spring bottom land are provided with bolt holes II.

5. The non-pneumatic low speed off-road vehicle tire of claim 1 or 4, wherein the tread element connection pad is connected to the gas spring top connection pad by a bolt I thereon inserted into a bolt hole II on the gas spring top connection pad.

6. The non-pneumatic low speed off-road vehicle tire of claim 1 or 4, wherein the gas spring mid-disc is connected to the inner ring disc by screws.

7. The non-pneumatic low speed off-road vehicle tire of claim 3 or 4, wherein the rim connection disc is connected to the gas spring bottom connection disc by bolts II inserted therein into bolt holes II on the gas spring bottom connection disc.

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