Novel spiral propelling type tire for all terrains

Abstract

The invention relates to the field of structural design of special operation equipment in a complex environment, and discloses an all-terrain novel spiral propelling type tire which comprises a fixed cantilever, a double-output-shaft motor, a spiral propeller, an inflatable rubber tire, a cylindrical pin, an angular contact ball bearing, a bearing support and other waterproof sealing parts. According to the technical scheme, the rubber tires can be automatically inflated and deflated according to different road surface conditions so as to achieve the maximum running speed and passing ability, and carrying equipment using the technical scheme can run on hard road surfaces, marshes, water surfaces and other environments; a double-output-shaft motor and a cantilever structure are adopted, so that the mounting space of the tire is reduced; the pyramid-shaped spirals are adopted, so that the resistance of the tire when the tire runs on a non-hard road surface is reduced; and the stress fatigue damage of a mechanical structure at the part connecting part is relieved by adopting the cylindrical pin for positioning. The technical scheme provided by the invention has certain utilization value under the backgrounds of water quick response, wetland detection and the like.

Description

Technical Field

[0001] The invention relates to special operation equipment, in particular to the field of structural design of propulsion systems of special operation equipment in complex environments, and specifically to a structural design of a novel spiral propulsion tire for all-terrain use. Background Art

[0002] Wetlands and swamps are the main application scenarios for amphibious vehicles. Their complex terrains put forward stringent requirements on the environmental adaptability and cross-domain capabilities of amphibious vehicles, and have become a bottleneck for the application and promotion of amphibious vehicles. Traditional wheeled, crawler and water-specific propulsion methods, such as paddling propulsion, propeller propulsion and water jet propulsion, are often limited to a single terrain environment.

[0003] In specific areas such as wetlands and swamps, due to the complex and changeable terrain conditions, traditional power-type carrying equipment is very easy to "get stuck", affecting its operating stability and maneuverability. In order to overcome these limitations, the present invention proposes an innovative travel system design, which aims to improve the operating performance and adaptability of carrying tools and special equipment on all-terrain complex roads, which has practical significance.

[0004] Invention patent content

[0005] The purpose of the present invention is to provide a transport equipment driving system suitable for all-terrain and complex roads. The system realizes stable operation and flexible operation of transport equipment and special equipment under specific terrain through automatic inflation and deflation functions and spiral propulsion.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A novel screw-propelled tire for all-terrain includes a fixed cantilever, a dual-output shaft motor, a screw propeller, a pneumatic rubber tire, a cylindrical pin, an angular contact ball bearing, a bearing support and other waterproof sealing components.

[0008] As a technical solution of the present invention: a vehicle or special equipment is equipped with at least two of the novel spiral propulsion tires on both sides of the vehicle body or hull. A fixed cantilever connects the tire to the vehicle body or hull, and a dual output shaft motor drives the tire to perform circular motion. On soft roads such as wetlands, swamps or water surfaces, the rubber tire is not inflated, and the spiral propeller plays a role to realize spiral transmission; on hard roads, the rubber tire is automatically inflated and the tire performs rolling motion.

[0009] As a further solution of the present invention, the output shaft of the dual-output shaft motor is fixed to both ends of the screw propeller through a connecting flange, and a cylindrical pin is used to position the connecting flange and the screw propeller. When the motor is working, a relative circular motion occurs between the stator and the screw propeller. The other end of the connecting flange is embedded in an angular contact ball bearing.

[0010] As a further solution of the present invention: when driving in swamps, muddy ground and water, the inflation and deflation system does not inflate the rubber tires, the connecting line of the centers of the two bearing supports is parallel to the vehicle body or hull, and the dual output shaft motors rotate in opposite directions to realize spiral transmission. By adjusting the motor speed, the acceleration and braking of the carrying equipment or special equipment can be controlled; and by differentially controlling the motors on both sides of the vehicle body or hull, steering with different radii can be realized. Waterproof sealing components, such as rubber sealing rings, O-rings, etc., prevent the motor from directly contacting silt and water.

[0011] As a further solution of the present invention: when driving on a hard road, the inflation and deflation system inflates the rubber tire until the tire is parallel to the top of the spiral, the line connecting the centers of the two bearing supports is perpendicular to the hull, the rotation directions of the dual output shafts of the motor are opposite, and the wheels perform approximately circular rolling motion. At the same time, increasing or decreasing the speed of the dual output shaft motor can achieve acceleration and braking of the carrier or special equipment, and differential control of the motors on the left and right sides of the vehicle body or hull can achieve steering of different radii of the carrier or special equipment.

[0012] Compared with the prior art, the advantages and beneficial effects of the present invention are:

[0013] 1. Automatically inflate and deflate rubber tires according to road conditions, so that the driving system of vehicles and special equipment can quickly change the working state on complex roads in all terrains, thereby improving the passability of vehicles and special equipment.

[0014] 2. Installing the motor inside the propeller reduces the installation space of the vehicle and special equipment driving system and improves the compactness of the structure.

[0015] 3. The propeller adopts a "pyramid" optimized design, which reduces driving resistance and improves the mechanical efficiency and operating speed of the driving system.

[0016] 4. Use cylindrical pins and spring clips to fix the connecting flange and screw propeller, avoiding the problem of thread damage in long-term work caused by traditional bolt fixing methods, enhancing sealing, extending service life and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0018] Figure 1 The schematic diagram of a novel spiral propulsion tire for all-terrain according to the present invention.

[0019] In the figure: 1. fixed cantilever; 2. bearing support; 3. rubber sealing ring; 4. connecting flange; 5. cylindrical pin; 6. screw propeller; 7. rubber tire.

[0020] Figure 2 The figure is a top view of a novel spiral propulsion tire for all-terrain use according to the present invention.

[0021] In the figure: 1. fixed cantilever; 4. connecting flange; 5. cylindrical pin; 6. screw propeller; 7. rubber tire; 10. O-ring.

[0022] Figure 3 The invention discloses a novel spiral propulsion tire for all-terrain use. Figure 2 Section view of the AA plane.

[0023] In the figure: 1. Fixed cantilever; 3. Rubber sealing ring; 4. Connecting flange; 5. Cylindrical pin; 6. Screw propeller; 7. Rubber tire; 8. Angular contact ball bearing; 9. Cross bolt; 10. O-ring; 11. Dual output shaft motor and reduction box.

[0024] Figure 4 The present invention is a schematic diagram of a novel all-terrain spiral propulsion tire in working state when it is not inflated.

[0025] In the figure: 2. bearing support; 3. rubber sealing ring; 4. connecting flange; 5. cylindrical pin; 6. screw propeller; 9. cross bolt; 10. O-ring sealing ring. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0027] Figure 1 A schematic diagram of a new type of spiral propulsion tire for all-terrain use. Figure 2 A top view of a new type of spiral propulsion tire for all-terrain use. Figure 3 The present invention discloses a novel spiral propulsion tire for all-terrain Figure 2 The cross-sectional view of the AA plane includes a fixed cantilever 1, a bearing support 2, a rubber sealing ring 3, a connecting flange 4, a cylindrical pin 5, a screw propeller 6, a rubber tire 7, an angular contact ball bearing 8, a cross bolt 9, an O-ring sealing ring 10, a dual output shaft motor and a reduction box 11.

[0028] On the basis of the above invention, the preferred embodiment of the present invention also includes: a single carrier or special equipment is equipped with at least two new all-terrain spiral propulsion tires on the left and right sides of the vehicle body or hull. The fixed cantilever 1 firmly connects the spiral propulsion tire with the vehicle body or hull, and the dual output shaft motor 11 drives the tire to make a circular motion. The spiral propeller 6 is used when the rubber tire 7 is not inflated, which is particularly suitable for swamps, muddy ground and water surface. The wheel moves forward through the spiral transmission mode; when driving on a hard road, the rubber tire 7 is automatically inflated, contacts the ground and makes a rolling motion.

[0029] On the basis of the above invention, the preferred embodiment of the present invention further includes: the output shaft of the dual output shaft motor 11 is fixed to the connecting flange 4, and the connecting flange 4 and the two end surfaces of the screw propeller 6 are positioned by cylindrical pins 5. When the dual output shaft motor 11 is working, the stator of the dual output shaft motor 11 and the screw propeller 6 make relative circular motion. The other end of the connecting flange 4 is embedded in the angular contact ball bearing 8. Using cylindrical pins 5 to fix instead of traditional bolts can avoid fatigue of the thread under long-term work and extend the service life.

[0030] On the basis of the above invention, the preferred embodiment of the present invention also includes: when driving in swamps, muddy ground and water surface, the inflation and deflation system deflates the rubber tire 7, the connecting line of the centers of the two bearing supports 2 is parallel to the hull, the rotation directions of the dual output shafts of the motor 11 are opposite, and the wheels are spirally driven. At the same time, increasing or decreasing the speed of the dual output shaft motor 11 can realize the acceleration and braking of the carrier or special equipment, and differential control of the dual output shaft motor 11 on the left and right sides of the vehicle body or hull can realize the steering of different radii of the carrier or special equipment. The rubber sealing ring 3, the O-ring 10 and the cross bolt 9 prevent the dual output shaft motor from direct contact with silt and water. The present invention has practical significance in the fields of emergency rescue, environmental detection, field reconnaissance and military transportation.

[0031] On the basis of the above invention, the preferred embodiment of the present invention also includes: when driving on a hard road, the inflation and deflation system inflates the rubber tire 7 until the tire is parallel to the top of the spiral, the line connecting the centers of the two bearing supports 2 is perpendicular to the hull, the rotation directions of the dual output shafts of the motor 11 are opposite, and the wheels perform approximately circular rolling motion. At the same time, increasing or decreasing the speed of the dual output shaft motor 11 can achieve acceleration and braking of the carrier or special equipment, and differential control of the motors on the left and right sides of the vehicle body or hull can achieve steering of different radii of the carrier or special equipment.

[0032] On the basis of the above invention, the automatic inflation and deflation system of the present invention includes an air pump, a pressure sensor, a control unit, a battery and an air solenoid valve. When driving on soft roads such as swamps, muddy ground and water, the pressure sensor sends a deflation signal to the control unit, and the control unit opens the air solenoid valve to release the gas in the rubber tire after receiving the signal; when driving on hard roads, the pressure sensor sends an inflation signal to the control unit, and the control unit starts the air pump and opens the air solenoid valve to inflate the rubber tire after receiving the signal, until the outer edge of the tire is roughly parallel to the top of the propeller, and then closes the air pump and the air solenoid valve.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that other technicians in this technical field can make several improvements and modifications according to actual needs without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A new type of spiral propulsion tire for all terrains, characterized in that: The structure comprises a fixed cantilever (1), a bearing support (2), a rubber sealing ring (3), a connecting flange (4), a cylindrical pin (5), a screw propeller (6), a rubber tire (7), an angular contact ball bearing (8), a cross bolt (9), an O-ring sealing ring (10), a dual output shaft motor and a reduction box (11) and other components.

2. A novel spiral propulsion tire for all terrain according to claim 1, characterized in that: The screw propeller (6) adopts a "pyramid" shaped screw structure, and the screw angle is optimized to be 30 degrees, in order to reduce the resistance of the tire when driving, and improve the mechanical efficiency and driving speed of the vehicle or special equipment when running on complex terrains such as mud, swamps and water. A single vehicle or special equipment is equipped with at least two new screw propulsion tires of this type on the left and right sides of the vehicle body or hull.

3. A novel spiral propulsion tire for all terrain according to claim 1, characterized in that: The rubber tire (7) is equipped with an automatic inflation and deflation system to meet the needs of driving on different road surfaces.

4. The automatic inflation and deflation system according to claim 3, characterized in that: The system comprises an air pump, a pressure sensor, a control unit, a battery and an air solenoid valve. When driving on a swamp, muddy ground or water surface, the pressure sensor sends a deflation signal to the control unit, and the control unit opens the air solenoid valve to release the gas in the rubber tire after receiving the signal. At this time, the line connecting the centers of the two bearing supports (2) is parallel to the hull to ensure the best buoyancy and passability; when driving on a hard road surface, the pressure sensor sends an inflation signal to the control unit, and the control unit starts the air pump and opens the air solenoid valve to inflate the rubber tire after receiving the signal, until the outer edge of the tire is roughly parallel to the top of the propeller, and then closes the air pump and the air solenoid valve. At this time, the line connecting the centers of the two bearing supports (2) is perpendicular to the hull to provide stable support and driving performance.

5. The novel spiral-propelled tire for all-terrain use according to claim 1, characterized in that: The dual-output shaft motor and the reduction box (11) are integrated and installed inside the propeller (6), and waterproof and dustproof properties are achieved in harsh environments through components such as a rubber sealing ring (3), a cross bolt (9), and an O-ring sealing ring (10).

6. A novel spiral-propelled tire for all-terrain use according to claim 1, characterized in that: The speed regulation function of the dual-output shaft motor can realize acceleration and braking of the vehicle or special equipment; at the same time, by differentially controlling the dual-output shaft motors on the left and right sides of the vehicle body or hull, flexible steering of the vehicle or special equipment at different radii can be achieved.

7. The novel spiral-propelled tire for all-terrain use according to claim 1, characterized in that: The connecting flange (4) and the screw propeller (6) are fixedly connected by means of a cylindrical pin (5). Compared with the traditional bolt connection method, the cylindrical pin (5) has the advantages of high shear force bearing capacity, stronger sealing performance and smaller occupied space under special circumstances.

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