Driving device with adjustable traction force for air cushion suspension vehicle and use method of driving device

Abstract

The invention discloses a traction-adjustable driving device for an air cushion suspension vehicle and a using method of the traction-adjustable driving device. The traction-adjustable driving device comprises a connecting plate, a guide column, a sliding plate, an air spring, a connecting base, a spring and a walking assembly. The connecting plate can be fixed with a vehicle body top plate of the air cushion suspension vehicle; the upper ends of the plurality of guide columns are vertically fixed on the bottom surface of the connecting plate; the sliding plate is slidably connected to the multiple guide columns. Two ends of the air spring are respectively fixed with two opposite plate surfaces of the sliding plate and the connecting plate; the connecting seat is fixed at the lower end of the guide post and can be fixed with the bottom surface of the vehicle body; the spring sleeves the guide column, and two ends of the spring are respectively fixed with two opposite wall surfaces of the sliding plate and the connecting seat; the walking assembly is rotationally connected to the bottom face of the sliding plate to drive the vehicle body to walk. The walking assembly makes contact with the ground to drive the air cushion suspension vehicle to walk, the sliding plate can slide up and down along the guide column relative to the fixing plate by changing the air pressure of the air spring, therefore, the positive pressure applied to the walking assembly is changed, and then traction force adjustment is achieved.

Description

Technical Field

[0001] This invention relates to the field of air cushion suspension equipment technology, and more specifically to an air cushion suspension vehicle with adjustable traction drive device and its usage method. Background Technology

[0002] Air cushion levitation transport vehicles are typically driven by pneumatic motors, which consume a large amount of air, easily cause pollution to the surrounding environment, and are difficult to automate. To overcome these drawbacks, advancements in motor and electrical technology have made electric motor drive a viable option. The traction force of an electric drive unit is related to the normal force acting on it, the coefficient of friction between the wheels and the ground, the vehicle's speed, and the power and torque of the motor. Within a certain range, adjusting the motor's current and voltage can regulate the traction force of the drive unit. However, beyond this range, the vertical load acting on the drive unit must be altered. The load-bearing capacity of the drive unit is structurally limited and cannot be very large; therefore, air cushions or similar devices are needed to share most of the load. Thus, adjusting the vertical force on the drive unit, and consequently, its traction force, is necessary.

[0003] Therefore, how to provide a drive device that can adjust the magnitude of traction force is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the present invention provides an adjustable traction drive device for air-cushioned vehicles and a method of using it, wherein the traction force of the drive device is adjusted by the cooperation of air and a sliding plate.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An adjustable traction drive device for an air-cushioned vehicle includes: A connecting plate, which can be fixed to the roof of the air cushion suspension vehicle; Guide pillars, wherein there are multiple guide pillars, and the upper ends of the multiple guide pillars are vertically fixed to the bottom surface of the connecting plate; A skateboard, which is arranged parallel to the connecting plate and slidably connected to the multiple guide posts; An air spring, the two ends of which are fixed to the two opposite surfaces of the sliding plate and the connecting plate, respectively; A connecting seat, which is fixed to the lower end of the guide post and can be fixed to the bottom surface of the vehicle body; A spring is sleeved on the guide post, and its two ends are fixed to the two opposing walls of the sliding plate and the connecting seat, respectively. A walking assembly, which is rotatably connected to the bottom surface of the skateboard to drive the vehicle body to move.

[0006] The beneficial effect of the technical solution of the present invention is that the walking component contacts the ground to drive the air cushion suspension vehicle to move. By changing the air pressure of the air spring, the slide plate can slide up and down along the guide post relative to the fixed plate, thereby changing the positive pressure applied to the walking component and thus realizing the adjustment of traction force.

[0007] Preferably, the air spring and the air cushion suspension vehicle are connected to the same air source. This ensures the compactness of the structure and eliminates the need for an additional air source.

[0008] Preferably, the walking assembly includes a speed reducer and steering wheels; the top surface of the speed reducer is rotatably connected to the bottom surface of the slide plate, and multiple steering wheels are rotatably connected to opposite side walls of the speed reducer. Traction walking is achieved by driving the steering wheels to rotate through the speed reducer.

[0009] Preferably, the system further includes a drive gear and a driven gear; a mounting base is fixed to the top surface of the reducer; a drive motor is fixed to the mounting base, and the drive gear is fixed to the output shaft of the drive motor; one end face of the driven gear is fixed to the top surface of the mounting base, and the other end face rotatably abuts against the bottom surface of the slide plate, and the driven gear meshes with the drive gear. The meshing of the drive gear and the driven gear enables the rotation of the reducer and the steering wheel, thereby achieving steering during the traction process of the air cushion hovercraft.

[0010] Preferably, there are two steering wheels, and the two steering wheels are respectively meshed with gears in the reducer via worm gears.

[0011] Preferably, the device also includes two motors, which are fixed to the opposite outer walls of the reducer. The output shafts of both motors pass through the housing of the reducer and are connected to two gears inside the reducer to drive the two steering wheels to rotate. Each motor is connected to its corresponding steering wheel, and when the traction force increases, the two motors drive the two steering wheels to rotate, ensuring normal traction and movement of the drive device.

[0012] Preferably, the vehicle body has multiple mounting slots, and the drive unit is installed in the mounting slot. The connecting plate is bolted to the top wall of the vehicle body corresponding to the circumference of the mounting slot; the connecting seat is bolted to the inner wall of the mounting slot. Using multiple drive units to drive the air cushion suspension vehicle ensures effective traction.

[0013] Preferably, there are four guide posts, corresponding to the four corners of the connecting plate. Using multiple guide posts ensures the horizontal freedom of the sliding plate and improves the safety factor during traction.

[0014] Preferably, it further includes a sleeve, which is fitted onto the guide post and can slide downward along the guide post; the bottom end of the sleeve is fixed with an outer edge; the bottom surface of the slide plate is fixed to the top surface of the outer edge. This conductivity limits the minimum relative distance between the slide plate and the connecting plate.

[0015] The present invention also provides a method for using an adjustable traction drive device for an air cushion levitation vehicle, comprising: adjusting the air pressure value of the air spring to lower the sliding plate so that the steering wheel in the walking assembly contacts the ground; after the walking assembly is powered on, checking whether the steering wheel can pull the air cushion levitation vehicle; if it cannot pull, increasing the air pressure of the air spring to increase the ground adhesion of the steering wheel and realize traction adjustment; after the air cushion levitation vehicle is pulled into position, releasing the air pressure of the air spring to make the sliding plate drive the walking assembly to move upward synchronously, so that the steering wheel leaves the ground.

[0016] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a drive device for adjustable traction force of air-cushioned vehicles and its usage method. By adjusting the air pressure of the air spring, the slide plate can move up and down relative to the connecting plate. The movement of the slide plate can change the positive pressure acting on the steering wheel, thereby realizing the adjustment of the traction force. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the drive device structure provided by the present invention; Figure 2 A cross-sectional view of the driving device provided by the present invention; Figure 3 This is a front view of the driving device provided by the present invention.

[0019] Among them, 1-reducer; 2-steering wheel; 3-motor; 4-slide plate; 5-guide post; 6-connecting seat; 7-spring; 8-connecting plate; 9-air spring; 10-passive gear; 11-driving gear; 12-mounting seat; 13-sleeve. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figure 1 As shown in Figure 3, this embodiment of the invention discloses an adjustable traction drive device for an air-cushioned vehicle, including a connecting plate 8, guide pillars 5, a sliding plate 4, an air spring 9, a connecting seat 6, a spring 7, and a walking assembly. The connecting plate 8 can be fixed to the top plate of the air-cushioned vehicle. There are multiple guide pillars 5, and the upper ends of the multiple guide pillars 5 are vertically fixed to the bottom surface of the connecting plate 8. The sliding plate 4 is arranged parallel to the connecting plate 8 and slidably connected to the multiple guide pillars 5. The two ends of the air spring 9 are respectively fixed to the two opposite surfaces of the sliding plate 4 and the connecting plate 8. The connecting seat 6 is fixed to the lower end of the guide pillar 5 and can be fixed to the bottom surface of the vehicle body. The spring 7 is sleeved on the guide pillar 5, and its two ends are respectively fixed to the two opposite surfaces of the sliding plate 4 and the connecting seat 6. The walking assembly is rotatably connected to the bottom surface of the sliding plate 4 to drive the vehicle body to move.

[0022] In this embodiment, the walking assembly includes a reducer 1 and steering wheels 2; the top surface of the reducer 1 is rotatably connected to the bottom surface of the slide plate 4, and there are multiple steering wheels 2 which are rotatably connected to the opposite side walls of the reducer 1.

[0023] The entire drive system moves using a speed reducer and a steering wheel. The speed reducer and steering wheel are mounted on the bottom of the slide plate. When the air pressure in the air spring is at its minimum, the slide plate is located at the top of the guide column and can drive the speed reducer and steering wheel to their highest position. At this time, the steering wheel is not in contact with the ground. When traction is needed, the air pressure in the air spring is slowly increased, causing the slide plate to move the steering wheel downwards. Once the steering wheel contacts the ground, the speed reducer is activated to observe whether the rotation of the steering wheel can traction the air cushion hovercraft. If traction is not achieved, the pressure of the air spring is increased, thereby increasing the positive pressure acting on the steering wheel. This increases the ground adhesion of the steering wheel, thereby increasing and adjusting the traction force to ensure that the steering wheel can traction the air cushion hovercraft. During traction, the speed reducer can rotate relative to the slide plate, enabling steering during traction.

[0024] To further optimize the above technical solution, it also includes a drive gear 11 and a driven gear 10; a mounting base 12 is fixed on the top surface of the reducer 1; a drive motor is fixed on the mounting base 12, and the drive gear 11 is fixed to the output shaft of the drive motor; one end face of the driven gear 10 is fixed to the top surface of the mounting base 12, and the other end face rotates and abuts against the bottom surface of the slide plate 4, and the driven gear 10 meshes with the drive gear 11.

[0025] The driven gear is fixed on the top surface of the mounting base, and at the same time, the driven gear is mounted on the bottom surface of the slide plate through a rotating shaft. The driven gear can rotate relative to the slide plate. Through the meshing of the driving gear on the geared motor and the driven gear, the rotation of the driven gear drives the gear reducer to rotate relative to the slide plate, thereby realizing steering during the traction process.

[0026] In this embodiment, there are two steering wheels 2, each meshing with a gear inside the reducer 1 via a worm gear. The reducer 1 has two sets of gears, which are respectively connected to two worm gears to drive the rotation of the two steering wheels 2. Through the independent drive of the two steering wheels 2, flexible traction can be achieved.

[0027] To further optimize the above technical solution, two motors 3 are also included, fixed on opposite outer walls of the reducer 1. The output shafts of both motors 3 penetrate the housing of the reducer 1 and are connected to two gears inside the reducer 1 to drive the two steering wheels 2 to rotate respectively. The air pressure change of the air spring 9 can change the normal force acting on the steering wheel 2. When the normal force of the steering wheel 2 increases, the traction force of the corresponding drive device also increases. By driving the two steering wheels 2 to rotate through the two motors 3 respectively, the two motors 3 can perform work on the two steering wheels 2 respectively when the traction force increases, ensuring the smooth progress of the traction work and preventing the steering wheels 2 from failing to rotate normally due to the increased traction force of the drive device.

[0028] To further optimize the above technical solution and improve the compactness of the traction process, the air spring 9 and the air cushion suspension vehicle are connected to the same air source.

[0029] In other specific embodiments, the vehicle body has multiple assembly slots, and the drive unit is installed in the assembly slot. The connecting plate 8 is bolted to the top wall of the corresponding assembly slot around the vehicle body; the connecting seat 6 is bolted to the inner wall or bottom wall of the assembly slot. By setting multiple drive units to operate simultaneously, the air cushion hovering vehicle can be effectively towed and moved.

[0030] To further optimize the above technical solution, four guide pillars 5 are used, corresponding to the four corners of the connecting plate 8. Multiple guide pillars 5 ensure that the surface of the sliding plate 4 remains parallel to the surface of the connecting plate 8, thereby ensuring the accurate relative positions of the multiple drive devices at the front and rear of the air cushion hovercraft.

[0031] In some other embodiments, a sleeve 13 is also included, which is fitted onto the guide post 5 and can slide downward along the guide post 5; an outer edge is fixed to the bottom end of the sleeve 13; the bottom surface of the slide plate 4 is fixed to the top surface of the outer edge. The length of the sleeve 13 is the same as the length of the air spring 9 under minimum air pressure.

[0032] By setting a sleeve and fixing the slide plate to the outer edge, when the air spring pressure is at its minimum, the slide plate slides to its highest position. In this state, the upper end face of the sleeve abuts against the bottom surface of the connecting plate. When the air spring is pressurized, it extends, causing the slide plate and sleeve to move downwards synchronously. In this state, the upper end face of the sleeve does not contact the connecting plate. This invention limits the highest sliding position of the slide plate by setting a sleeve, ensuring that the slide plate will not continue to move upwards and further compress the air spring due to the elastic force of the spring on the guide post when the air spring is under minimum pressure, thus ensuring the durability of the air spring.

[0033] To further optimize the above technical solution, ensure the effective installation of the air spring, and facilitate the replacement and maintenance of the air spring 9, the two ends of the air spring 9 are respectively bolted to the two opposite surfaces of the connecting plate 8 and the sliding plate 4.

[0034] This embodiment also discloses a method for using an adjustable traction drive device for an air cushion hovering vehicle, including: adjusting the air pressure of the air spring 9 to move the slide plate 4 downward and compress the spring 7 on the guide post 5, thereby making the steering wheel 2 in the walking assembly contact the ground; after the motor 3 is powered on, checking whether the steering wheel 2 can pull the air cushion hovering vehicle (i.e., whether the steering wheel 2 will spin freely), if it cannot pull (the steering wheel 2 spins freely), increasing the air pressure of the air spring 9, thereby increasing the positive pressure acting on the steering wheel 2, changing the ground adhesion of the steering wheel 2, realizing the adjustment of increased traction force, and ensuring that the steering wheel 2 can pull the vehicle; after the air cushion hovering vehicle is pulled into place, the air pressure of the air spring 9 is released, and under the action of the air spring 9 and the spring 7 on the guide post 5, the slide plate 4 drives the walking assembly to move upward synchronously, causing the steering wheel 2 to leave the ground.

[0035] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0036] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A traction-adjustable drive device for an air-cushioned vehicle, characterized in that, include: Connecting plate (8), which can be fixed to the roof of the air cushion suspension vehicle; Guide pillars (5), there are multiple guide pillars (5), and the upper ends of the multiple guide pillars (5) are vertically fixed to the bottom surface of the connecting plate (8); The sliding plate (4) is arranged parallel to the connecting plate (8) and slidably connected to the multiple guide posts (5); An air spring (9) is fixed at both ends to the two opposite surfaces of the slide plate (4) and the connecting plate (8), respectively. Connecting seat (6), the connecting seat (6) is fixed to the lower end of the guide post (5) and can be fixed to the bottom surface of the vehicle body; Spring (7), the spring (7) is sleeved on the guide post (5), and its two ends are fixed to the two walls opposite to the slide plate (4) and the connecting seat (6); A walking assembly is rotatably connected to the bottom surface of the skateboard (4) to drive the vehicle body to move.

2. The adjustable traction drive device for an air-cushion levitation vehicle according to claim 1, characterized in that, The air spring (9) and the air cushion suspension vehicle are connected to the same air source.

3. The adjustable traction drive device for an air-cushioned vehicle according to claim 1, characterized in that, The walking assembly includes a speed reducer (1) and a steering wheel (2); the top surface of the speed reducer (1) is rotatably connected to the bottom surface of the slide plate (4), and there are multiple steering wheels (2) which are rotatably connected to the opposite side walls of the speed reducer (1).

4. The adjustable traction drive device for an air-cushion levitation vehicle according to claim 3, characterized in that, It also includes a drive gear (11) and a driven gear (10); a mounting base (12) is fixed on the top surface of the reducer (1); a drive motor is fixed on the mounting base (12), and the drive gear (11) is fixed to the output shaft of the drive motor; one end face of the driven gear (10) is fixed to the top surface of the mounting base (12), and the other end face rotates and abuts against the bottom surface of the slide plate (4), and the driven gear (10) meshes with the drive gear (11).

5. The adjustable traction drive device for an air-cushion levitation vehicle according to claim 3, characterized in that, There are two steering wheels (2), and the two steering wheels (2) are respectively meshed with the gears in the reducer (1) through worm gears.

6. The adjustable traction drive device for an air-cushioned vehicle according to claim 5, characterized in that, It also includes two motors (3) and fixed on the two opposite outer walls of the reducer (1). The output shafts of the two motors (3) pass through the housing of the reducer (1) and are connected to two gears inside the reducer (1) to drive the two steering wheels (2) to rotate respectively.

7. The adjustable traction drive device for an air-cushion levitation vehicle according to claim 1, characterized in that, The vehicle body has multiple assembly slots, the drive device is installed in the assembly slot, the connecting plate (8) is bolted to the top wall of the vehicle body corresponding to the circumference of the assembly slot; the connecting seat (6) is bolted to the inner wall of the assembly slot.

8. The adjustable traction drive device for an air-cushion levitation vehicle according to claim 1, characterized in that, The number of guide posts (5) is four, and the four guide posts correspond to the four corners of the connecting plate (8).

9. The adjustable traction drive device for an air-cushion levitation vehicle according to claim 1, characterized in that, It also includes a sleeve (13), which is fitted onto the guide post (5) and can slide downward along the guide post (5); the bottom end of the sleeve (13) is fixed with an outer edge; the bottom surface of the slide plate (4) is fixed to the top surface of the outer edge.

10. A method of using the adjustable traction drive device for an air-cushioned vehicle according to any one of claims 1 to 9, characterized in that, include: Adjust the air pressure of the air spring (9) to make the slide plate (4) move down so that the steering wheel (2) in the walking assembly contacts the ground; after the walking assembly is powered on, check whether the steering wheel (2) can pull the air cushion levitation vehicle to move. If it cannot pull, increase the air pressure of the air spring (9) to increase the ground adhesion of the steering wheel (2) and realize the adjustment of the traction force; after the air cushion levitation vehicle is pulled into place, remove the air pressure of the air spring (9) so that the slide plate (4) drives the walking assembly to move up synchronously, so that the steering wheel (2) leaves the ground.

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