Double-rear-axle-wheel (single-double) type vehicle capable of being switched into crawler cross-country mode and method of double-rear-axle-wheel (single-double) type vehicle

Abstract

The invention relates to the field of vehicle technical equipment, and discloses a double-rear-axle-wheel (single-double) type vehicle capable of being switched into a crawler cross-country mode and a method of the double-rear-axle-wheel (single-double) type vehicle. The vehicle is based on an existing double-rear-axle wheel type structure, and refitting can be achieved only by replacing lengthened bolts and additionally installing an inner gear, a middle gear and an outer gear assembly. After modification, the gears, the outer edges of the tires and the front and rear groups of tires jointly externally hang a crawler belt to form an off-road mode. The outer diameter of the gear is larger than the diameter of a tire, and the exceeding part of the gear is matched with the thickness of the crawler belt. The added gears are mainly used for preventing the crawler belt from falling off in the running process of the vehicle and dragging the crawler belt to synchronously rotate along with the tires. The device can be quickly mounted before entering a field, is convenient to dismount before returning to a pavement, is recovered to a common wheeled vehicle, has the advantages of simple structure and convenience in modification, and achieves the technical effect of improving the adhesive force and traction stability under severe terrains in combination with an integral track driving mode.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle equipment, and particularly to a dual-rear axle wheel (single / double) type vehicle that can be switched to a crawler cross-country mode and a method thereof. Background Art

[0002] With the development of the transportation industry, heavy trucks are increasingly widely used in off-road environments. Especially in complex terrains such as construction sites, mines, and forest operations, higher requirements are put forward for the passability and load-bearing capacity of vehicles.

[0003] Currently, some heavy trucks on the market adopt a crawler design to improve off-road capabilities. These vehicles usually use a full-crawler chassis or a semi-crawler drive structure, enabling them to obtain better traction in extreme environments such as mud, sand, and snow.

[0004] However, the existing crawlers often require multiple operations during the disassembly process, and special tools or the disassembly of multiple structural components are needed to change the drive form, making the installation process rather cumbersome. In addition, during the use of the existing crawlers, there is a lack of an effective anti-deviation mechanism, and the crawlers are prone to deviation during movement, affecting the overall operation efficiency. Therefore, the present invention provides a dual-rear axle wheel (single / double) type vehicle that can be switched to a crawler cross-country mode and a method thereof to solve the deficiencies in the prior art. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a dual-rear axle wheel (single / double) type vehicle that can be switched to a crawler cross-country mode and a method thereof, solving the problems in the prior art that multiple operations are often required during the disassembly process, and the docking between components during the installation process is inaccurate, making the modification process cumbersome and affecting the use effect.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A dual-rear axle wheel (single / double) type vehicle that can be switched to a crawler cross-country mode, including a wheel hub, with disassembly and assembly mechanisms arranged on both sides of the wheel hub, a crawler mechanism arranged outside the disassembly and assembly mechanisms. The disassembly and assembly mechanism includes a plurality of extended bolts, the outer parts of which are installed on the inner wall of the wheel hub. Gears are arranged on both sides of the wheel hub, and a plurality of positioning holes are penetrated through the outer parts of the gears.

[0007] Preferably, the crawler mechanism includes a crawler body, the inner side of which is arranged on the outer part of the gear. A plurality of anti-deviation, guiding, and driving slot holes are opened on the inner side of the crawler body, and a plurality of anti-slip bumps are fixedly connected to the outer part of the crawler body.

[0008] Preferably, a tire is installed on the outer part of the wheel hub, and the inner side of the crawler body is arranged on the outer part of the tire.

[0009] Preferably, the lengthened bolts are arranged on the inner walls of the gears on both sides of the wheel hub, and nuts are threadedly connected to the outer parts of the lengthened bolts.

[0010] The present invention also provides a method for a dual-rear-axle wheel (single / double) type vehicle that can be switched to a crawler cross-country mode, including the following steps:

[0011] First, when the tires are moving on a flat road, in some environments with poor road conditions, the tires will be damaged. By disassembling the tires from the wheel hub and then aligning the positioning holes of the gears with the lengthened bolts, the lengthened bolts are passed through the inside of the positioning holes. Then, the nuts are tightened on the outer parts of the lengthened bolts and fit against one side of the gears. In this way, the gears can be conveniently installed on both sides of the wheel hub. Gears are similarly installed between the two tires, so that the crawler body can travel stably.

[0012] By installing the crawler body on the outside of the gears and matching the anti-offset, guiding, and driving slots on the inner side of the crawler body with the outside of the gears, during the rotation of the gears, the outside of the gears can cooperate with the anti-offset, guiding, and driving slots to drive the crawler body to move. Through the anti-slip bumps provided on the outside of the crawler body, the friction during the movement is increased, making the movement process more stable.

[0013] The present invention provides a dual-rear-axle wheel (single / double) type vehicle that can be switched to a crawler cross-country mode and its method. It has the following beneficial effects:

[0014] 1. The present invention can perform quick positioning and locking installation through the setting of positioning holes and nuts. It can be quickly installed before entering the wild land and conveniently disassembled before returning to the paved road surface to restore it to an ordinary wheeled vehicle. Compared with the prior art solutions that require the assistance of special tools or the disassembly of multiple structural components to change the driving form, it has the advantages of simple structure and convenient modification.

[0015] 2. The present invention adopts the cooperative structure design between the crawler body and the gears, combined with the coordinated guiding of the anti-offset, guiding, and driving slots and the edges of the gears, achieving the technical effect of effectively preventing offset during the operation of the crawler. Compared with the problem that the crawler structure is prone to lateral swing or dislocation during rotation in the prior art, it solves the deficiencies of unstable running trajectory and reduced movement efficiency.

[0016] 3. The present invention adopts the technical solution of setting anti-slip bumps on the outside of the crawler body, combined with the overall crawler drive mode, achieving the technical effect of improving the adhesion and traction stability under harsh terrain. Compared with the problem that ordinary tires are prone to slipping under muddy, slippery and other road conditions in the prior art, it solves the deficiencies of poor anti-slip performance and limited passability. Description of the Drawings

[0017] Figure 1Isometric view of the present invention;

[0018] Figure 2 Schematic diagram of the gear structure of the present invention;

[0019] Figure 3 Schematic diagram of the elongated bolt structure of the present invention;

[0020] Figure 4 Schematic diagram of the tire structure of the present invention;

[0021] Figure 5 Schematic diagram of the anti-offset, induction and drive slot structure of the present invention;

[0022] Figure 6 Schematic diagram of the positioning hole structure of the present invention.

[0023] Wherein, 1, tire; 2, wheel hub; 3, crawler mechanism; 301, crawler body; 302, anti-offset, induction and drive slot; 303, anti-slip bump; 4, disassembly and assembly mechanism; 401, elongated bolt; 402, nut; 403, gear; 404, positioning hole. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to the attached Figure 1 、the attached Figure 3 、the attached Figure 4 and the attached Figure 6, A double-rear-axle wheel (single / double) vehicle that can be switched to a crawler off-road mode, including multiple hubs 2. Disassembly and assembly mechanisms 4 are provided on both sides of the hub 2. A crawler mechanism 5 is provided outside the disassembly and assembly mechanism 4. The crawler mechanism 5 is used to provide stable ground contact and traction performance in complex terrains, enhancing the off-road passing ability of the vehicle. The disassembly and assembly mechanism 4 includes multiple extended bolts 401. The outside of the extended bolt 401 is installed on the inner wall of the hub 2. The extended bolt 401 is used for quick connection. Gears 403 are provided on both sides of the hub 2. The gears 403 are used to achieve synchronous transmission with the crawler body 301. Multiple positioning holes 404 are penetrated through the outside of the gear 403. The positioning holes 404 are used to achieve precise alignment between the extended bolt 401 and the gear 403. The extended bolt 401 is arranged on the inner wall of the gears 403 on both sides of the hub 2. A nut 402 is threadedly connected to the outside of the extended bolt 401. The nut 402 is used to fix the gear 403 and provide a stable clamping force. The diameter of the gear 403 is larger than the diameter of the tire 1. The part of the gear 403 larger than the diameter of the tire 1 cooperates with the anti-deviation and induction and drive slot holes 302. The anti-deviation and induction and drive slot holes 302 are used to limit the movement track of the crawler.

[0026] Please refer to the appendix Figure 2 , appendix Figure 3 , appendix Figure 4 and appendix Figure 5 , The crawler mechanism 5 includes a crawler body 301. The inner side of the crawler body 301 is arranged outside the gear 403. The crawler body 301 serves as the load-bearing and traction main body when the vehicle is switched to the crawler off-road mode, and is used to replace the tire 1 to run in complex terrains, improving the passing ability; multiple anti-deviation and induction and drive slot holes 302 are opened on the inner side of the crawler body 301. The anti-deviation and induction and drive slot holes 302 are used to cooperate with the gear 403 to limit the lateral slip of the crawler during operation. Multiple anti-slip bumps 303 are fixedly connected to the outside of the crawler body 301. The anti-slip bumps 303 are used to enhance the friction between the crawler and the ground, improving the traction performance and braking stability of the whole vehicle under wet or soft road conditions.

[0027] Please refer to the appendix Figure 1 , A tire 1 is installed outside the hub 2. The tire 1 is used to provide high-speed and efficient rolling support on a flat road surface. The inner side of the crawler body 301 is arranged outside the tire 1. The crawler body 301 covers the outside of the tire 1 to achieve rapid structural switching, enabling the vehicle to enter the crawler off-road mode and improving the use convenience and environmental adaptability.

[0028] Working principle: First, during the movement of the tire 1, the wheel hub 2 drives the tire 1 to rotate, so that the tire 1 can move on a flat road. Before entering the wild land, the tire 1 will be damaged. By detaching the tire 1 from the wheel hub 2, and then aligning the positioning hole 404 of the gear 403 with the extended bolt 401, so that the extended bolt 401 passes through the inside of the positioning hole 404. Then, the nut 402 is tightened outside the extended bolt 401 and fits against one side of the gear 403. In this way, the gear 403 can be conveniently installed on both sides of the wheel hub 2. The gear 403 is installed between the two tires 1 in the same way. In this way, the crawler body 301 can travel stably and can be easily disassembled before returning to the paved road surface, restoring it to an ordinary wheeled vehicle. In this way, the disassembly and assembly of the crawler are simple and convenient;

[0029] By installing the crawler body 301 outside the gear 403 and matching the anti-deviation, guiding and driving slot holes 302 inside the crawler body 301 with the outside of the gear 403, in this way, during the rotation of the gear 403, through the cooperation between the outside of the gear 403 and the anti-deviation, guiding and driving slot holes 302, the crawler body 301 can be driven to move. Through the anti-slip bumps 303 arranged on the outside of the crawler body 301, the friction during the movement is increased, making the movement process more stable.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dual rear axle wheel (single and double) vehicle switchable to a track off-road mode, comprising a plurality of wheel hubs (2), characterized in that: The wheel hub (2) is provided with a disassembly and assembly mechanism (4) on both sides, and a track mechanism (3) is provided outside the disassembly and assembly mechanism (4). The disassembly and assembly mechanism (4) comprises a plurality of lengthened bolts (401), and the outside of the lengthened bolts (401) is mounted on the inner wall of the wheel hub (2). The wheel hub (2) is provided with a gear (403) on both sides, and a plurality of positioning holes (404) are provided through the middle of the gear (403).

2. A dual rear axle wheel (single and double) vehicle switchable to a crawler off-road mode according to claim 1, characterized in that: The crawler mechanism (3) comprises a crawler body (301), the inner side of the crawler body (301) is arranged outside the gear (403), the inner side of the crawler body (301) is provided with a plurality of anti-biasing and induction and driving slots (302), and the outside of the crawler body (301) is fixedly connected with a plurality of anti-skid protrusions (303).

3. A dual rear axle wheel (single and double) vehicle switchable to a crawler off-road mode according to claim 2, characterized in that: A tire (1) is installed on the outside of the wheel hub (2), and the inner side of the crawler body (301) is arranged on the outside of the tire (1).

4. A dual rear axle wheel (single and double) vehicle switchable to a crawler off-road mode according to claim 3, characterized in that: The lengthening bolts (401) are arranged on the inner walls of the gears (403) on both sides of the wheel hub (2), and the outer threads of the lengthening bolts (401) are connected with nuts (402).

5. A method for a dual rear axle wheel (single and double) type vehicle switchable to a track off-road mode, applied to a dual rear axle wheel (single and double) type vehicle switchable to a track off-road mode as claimed in any one of claims 1 to 4, characterized in that: The following steps are involved: First, when the tire (1) moves on a flat road, in some environments with poor road conditions, the tire (1) may be damaged. The tire (1) and the wheel hub (2) are disassembled, and the positioning hole (404) of the gear (403) is aligned with the lengthening bolt (401), so that the lengthening bolt (401) passes through the inside of the positioning hole (404), and then the nut (402) is tightened on the outside of the lengthening bolt (401) and fits on one side of the gear (403). In this way, the gear (403) can be conveniently installed on both sides of the wheel hub (2). Similarly, the gear (403) is installed between the two tires (1), so that the crawler body (301) can travel stably. The crawler body (301) is installed on the outside of the gear (403), and the anti-deviation, induction and driving slots (302) on the inner side of the crawler body (301) are matched with the outside of the gear (403). In this way, during the rotation of the gear (403), the crawler body (301) can be driven to move by the cooperation between the outside of the gear (403) and the anti-deviation, induction and driving slots (302). The anti-skid protrusions (303) arranged on the outside of the crawler body (301) increase the friction during the movement, making the movement more stable.

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