CN215436688U

CN215436688U - Free wheel type obstacle crossing transport vehicle

Info

Publication number: CN215436688U
Application number: CN202121799946.0U
Authority: CN
Inventors: 刘彦海; 蔡方田; 李宏翰
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2022-01-07
Anticipated expiration: 2031-08-04

Abstract

The utility model relates to a free wheel type obstacle crossing transport vehicle which comprises a vehicle body, wherein the vehicle body is provided with four free suspensions, each free suspension is provided with two wheels which are arranged in front and back, and the two wheels of each free suspension are driven by a driving shaft to rotate synchronously. The utility model has the beneficial effects that: the four sets of the free suspension devices are adopted, two wheels of the free suspension can be adaptively adjusted to be in contact with the road surface, eight wheels drive the vehicle to move, the driving force is strong, the driving stability is good, the obstacle crossing performance of the vehicle can be obviously improved, and the device is particularly suitable for conveying materials on complex road conditions and rescue sites.

Description

Free wheel type obstacle crossing transport vehicle

Technical Field

The utility model relates to an equipment material conveying tool, in particular to a free wheel type obstacle crossing transport vehicle suitable for a rescue site.

Background

In rescue sites such as earthquakes, debris flows, landslides and the like, a problem often occurs that a rescue channel is blocked or damaged, large equipment and material transportation vehicles cannot reach the rescue sites, equipment such as heavy supporting sets, hydraulic breaking and dismantling tool sets, unmanned aerial vehicles, life detectors, generators and the like which are equipped by rescue teams are hundreds of kilograms in weight, a large amount of manpower is consumed to transport the equipment to the rescue sites, the physical strength of the rescue teams is consumed, and the rescue work efficiency of gold rescue time is influenced. At present, the middle-size and small-size equipment material transport vechicle that is equipped with in the market, the performance is better, the trafficability characteristic is stronger mainly is crawler-type transport vechicle, but discovers in the reality, crawler-type transport vechicle trafficability characteristic still can't deal with complicated road conditions such as earthquake accident, mud-rock flow, massif landslide, and crawler-type structure under this kind of complex condition, the track often appears damaging, and the fault rate is high, and the transport means of other wheeled structures also can only use under the comparatively smooth condition in road surface basically. At present, the rescue work needs transportation equipment which can deal with complex road conditions, has excellent off-road performance and good trafficability.

Disclosure of Invention

The utility model aims to provide a free wheel type obstacle crossing transport vehicle, which improves the material conveying capacity and conveying efficiency of equipment on complex terrains and road surfaces.

In order to achieve the purpose, the technical scheme of the utility model is as follows: the utility model provides a free wheeled transport vechicle that hinders more, includes the automobile body, the automobile body is equipped with four free suspensions, every free suspension is equipped with two tandem wheels, two wheels of free suspension are rotated by a drive shaft drive synchronization.

Furthermore, to achieve a free-wheel configuration of the vehicle, the free suspension is mounted with a rotating fit on the drive axle, the free suspension oscillates in a vertical plane, the free suspension is provided with two symmetrical free axles, the axes of which are parallel to the axis of the drive axle, the wheels being mounted on the free axles.

Still further, a mounting structure of a wheel is such that the free axle projects out of the free suspension, and the wheel is mounted on the outer side of the free suspension.

Further, to effect driving of the wheels, the drive shaft drives the two wheels synchronously via a drive chain.

Further, in order to ensure the reliability of the wheel drive, the drive shaft drives the two wheels synchronously through a transmission chain provided with a tension pulley.

Furthermore, in order to avoid excessive swinging or overturning of the free suspension, the free suspension is provided with a stroke limiting groove, the stroke limiting groove is an arc-shaped groove, the vehicle body is provided with a stroke limiting column, and the stroke limiting column penetrates into the stroke limiting groove.

Furthermore, in order to keep the wheels in a road running state, the free suspension is provided with a reset hole, the vehicle body is provided with a locking hole, the free suspension is fixed at a reset position by a locking shaft penetrating through the reset hole and the locking hole, and the reset position is a position where a plane where the axes of the two free shafts are located is parallel to the running direction.

Furthermore, in order to obtain a stable and strong driving force for the wheels, each of the driving shafts is driven by a driving motor.

Further, a typical configuration of the free wheel type obstacle crossing transport vehicle is that the width of the free wheel type obstacle crossing transport vehicle is 1200mm, the length is 1900mm, the height is 500mm, the diameter of the wheel is 400mm, the wheelbase in the front and rear direction of the driving shaft is 1000mm, and the wheelbase of the two wheels of the free suspension is 500 mm.

Further, to improve obstacle crossing capability, the wheels are off-road wheels.

The utility model has the beneficial effects that: the four sets of the free suspension devices are adopted, two wheels of the free suspension can be adaptively adjusted to be in contact with the road surface, eight wheels drive the vehicle to move, the driving force is strong, the driving stability is good, the obstacle crossing performance of the vehicle can be obviously improved, and the device is particularly suitable for conveying materials on complex road conditions and rescue sites.

The utility model is described in detail below with reference to the figures and examples.

Drawings

FIG. 1 is a view showing the external structure of the present invention;

FIG. 2 is a view of the internal structure of the vehicle body of the present invention;

FIG. 3 is a side view of the present invention;

FIG. 4 is a front view of the present invention;

FIG. 5 is a free suspension structural view of the present invention;

FIG. 6 is a free suspension drive configuration of the present invention;

fig. 7 is a schematic diagram of the use of the present invention.

Detailed Description

Referring to fig. 1 to 7, a free wheel type obstacle crossing transport vehicle includes a vehicle body 10 provided with four free suspensions 20 each provided with two wheels 30 arranged in tandem, the two wheels of the free suspensions being driven to rotate synchronously by a drive shaft 40.

The free suspension is mounted with a rotating fit on the drive shaft, the free suspension oscillates in a vertical plane, the free suspension is provided with two symmetrical free axles 21, the axes of which are parallel to the axis of the drive shaft, the wheel being mounted on the free axles.

The free axle extends out of the free suspension, and the wheel is mounted on the outer side of the free suspension.

The drive shaft drives the two wheels synchronously via a transmission chain 41.

The drive shaft drives the two wheels synchronously via a drive chain provided with a tensioning wheel 42.

The free suspension is provided with a stroke limiting groove 22, the stroke limiting groove is an arc-shaped groove, the vehicle body is provided with a stroke limiting column 11, and the stroke limiting column penetrates into the stroke limiting groove.

The free suspension is provided with a reset hole 23, the vehicle body is provided with a locking hole 12, the free suspension is fixed at a reset position by a locking shaft 13 penetrating the reset hole and the locking hole, and the reset position is a position where a plane where the two free axes of the vehicle are located is parallel to the driving direction, such as the position shown in fig. 3.

Each of the drive shafts is driven by a drive motor 50.

A typical structure of a free wheel type obstacle crossing transport vehicle is that the width W of the free wheel type obstacle crossing transport vehicle is 1200mm, the length L is 1900mm, the height H is 500mm, the diameter phi of a wheel is 400mm, the axle distance E in the front-back direction of a driving shaft is 1000mm, and the wheel distance C of two wheels of a free suspension is 500 mm.

The wheel 30 is an off-road wheel.

The first embodiment is as follows:

referring to fig. 1 to 7, a free wheel type obstacle crossing transport vehicle comprises a vehicle body 10, wherein the vehicle body is provided with four driving shafts 40 and four free suspensions 20, and each driving shaft corresponds to one free suspension.

A free suspension is defined as having a free axis free from the drive shaft. In this embodiment, the free suspension 20 is provided with two free frame plates 24, which are provided with bearings 25, the bearings 25 being connected to the drive shaft 40 such that the free suspension 20 is mounted on the drive shaft 40 with a running fit, the free suspension being able to swing in a vertical plane. The free suspension adopts chevron-shaped structure, is equipped with the trip axle 21 of two symmetries, and the axis of trip axle is on a parallel with the axis of drive shaft, and the free axle stretches out from the suspension, and the end that stretches out of trip axle is equipped with wheel connection pad 26, and every free suspension is equipped with two wheels 30, and two wheels are installed respectively on two wheel connection pads 26, and two wheel tandem (for vehicle walking direction), the wheel is located the outside of free suspension. The wheels are off-road wheels, and all-terrain off-road tires with strong off-road performance are adopted.

In order to avoid the excessive swing or overturn of the free suspension, the free suspension is provided with a stroke limiting groove 22, the stroke limiting groove is an arc-shaped groove, the vehicle body is provided with a stroke limiting column 11, and the stroke limiting column penetrates into the stroke limiting groove. When the free suspension swings to the stroke end points on two sides, the stroke limiting columns touch two ends of the stroke limiting grooves, and the free suspension is prevented from further swinging. In the present embodiment, the swing stroke α =62 ° of the free suspension.

The free suspension is provided with a reset hole 23, the vehicle body is provided with a locking hole 12, the free suspension is fixed at a reset position by a locking shaft 13 penetrating the reset hole and the locking hole, and the reset position is a position where a plane where the axes of the two free shafts 21 are located is parallel to the driving direction, as shown in fig. 3. The locking shaft 13 is a pin shaft which can be pulled out and inserted, when the locking shaft is inserted into the reset hole and the locking hole, the free suspension is kept at the reset position, and the road driving state of the wheels can be kept. When the locking shaft is pulled out, the free suspension can freely swing, so that the wheels are in an obstacle crossing driving state.

Each drive shaft 40 is driven by a drive motor 50, the motor 50 is mounted inside the vehicle body, and a power battery, a control device and the like are also mounted inside the vehicle body. The two wheels 30 of the free suspension are driven in rotation by a drive shaft 40. The drive shaft drives the two wheels synchronously via a transmission chain 41. The driving shaft 40 is provided with two chain wheels 43 which rotate synchronously with the driving shaft, the free shaft 21 is also provided with a chain wheel 44, the two chain wheels 43 of the driving shaft drive one chain wheel 44 of the free shaft respectively through a transmission chain 41, and the free shaft 21 drives the wheels to rotate. A tensioner 42 is also provided on the free suspension.

In the embodiment, the main specifications of the free wheel type obstacle crossing transport vehicle are that the width W =1200mm, the length L =1900mm, the height H =500mm, the wheel diameter phi =400mm, the axle base E =1000mm in the front and rear direction of the driving shaft, and the wheel base C =500mm of two wheels of a free suspension.

As shown in fig. 7, a guard rail 60 may be provided at the vehicle body to maintain stability of the vehicle-mounted materials. When the materials are transported, if the conditions of rugged roads or complex terrains are met, the free suspension of the free wheel type obstacle crossing transport vehicle can swing (deflect), so that two wheels can be adaptively adjusted to be in contact with the road surface, the total eight wheels drive the vehicle to travel, the driving force is strong, the driving stability is good, the obstacle crossing performance of the vehicle can be obviously improved, the device is particularly suitable for transporting the materials on the complex road surface and the rescue site, and the problem of 'the last kilometer' (from a material transport point to a target site) of the equipment material transportation can be solved.

The utility model adopts a free wheel type structure of a vehicle. The concept of free wheels in vehicle construction is: the vehicle is provided with two (or more) free shafts which can move relative to a rotating main shaft, the free shafts are not fixedly moved around the main shaft, an engine drives the main shaft to rotate, the main shaft rotates around the free shafts through a transmission belt (such as a transmission chain, a transmission belt or a transmission gear), and wheels are arranged on the free shafts.

Claims

1. The free wheel type obstacle crossing transport vehicle comprises a vehicle body and is characterized in that the vehicle body is provided with four free suspensions, each free suspension is provided with two wheels which are arranged in front and back, and the two wheels of each free suspension are driven by a driving shaft to rotate synchronously.

2. A free-wheeled obstacle-surmounting vehicle as claimed in claim 1, wherein the free suspension is mounted on the drive axle with a running fit, the free suspension is swinging in a vertical plane, the free suspension is provided with two symmetrical free axles, the axis of the free axles being parallel to the axis of the drive axle, the wheels being mounted on the free axles.

3. A free-wheeled obstacle-crossing vehicle as claimed in claim 2, wherein the free axle extends out of the free suspension, the wheel being mounted outboard of the free suspension.

4. A free-wheeled obstacle-crossing vehicle as claimed in claim 1, wherein said drive shaft drives said two wheels in synchronism via a drive chain.

5. A free-wheeled obstacle-surmounting transport vehicle as claimed in claim 4, wherein said drive shaft drives said two wheels synchronously via a drive chain provided with tension pulleys.

6. The free wheel type obstacle crossing transport vehicle as claimed in claim 1, wherein the free suspension is provided with a travel limiting groove, the travel limiting groove is an arc-shaped groove, the vehicle body is provided with a travel limiting post, and the travel limiting post penetrates into the travel limiting groove.

7. A free wheel type obstacle detouring transport vehicle as claimed in claim 2, wherein the free suspension is provided with a reset hole, the vehicle body is provided with a locking hole, the free suspension is fixed at a reset position by a locking shaft penetrating through the reset hole and the locking hole, and the reset position is a position where a plane on which axes of the two free shafts are located is parallel to a traveling direction.

8. A free-wheeled obstacle-surmounting vehicle as claimed in claim 1, wherein each of said drive shafts is driven by a drive motor.

9. The free wheel type obstacle detouring transport vehicle as claimed in claim 1, wherein the free wheel type obstacle detouring transport vehicle has a width of 1200mm, a length of 1900mm, a height of 500mm, a wheel diameter of 400mm, a wheelbase of 1000mm in a front-rear direction of a driving shaft, and a wheelbase of 500mm for both wheels of the free suspension.

10. A free-wheeled obstacle-crossing transport vehicle as claimed in claim 1, wherein the wheels are off-road wheels.