CN218489774U - Transport vehicle - Google Patents

Abstract

The utility model provides a transport vehicle, comprising a base plate, the bottom plate below is provided with the drive wheel, the top of bottom plate is provided with the removal dish, through the removal dish to the drive wheel is exerted pressure in order to adjust the pressure of drive wheel to ground. The utility model discloses the transport vechicle is through setting up mobilizable removal dish to through removing the pressure that dish, guide bar and spring adjustment drive wheel set ground, thereby realize that the pressure on drive wheel set ground is adjustable, make the transport vechicle full-load and empty load hour wheel pressure adjustable, reduce the design weight of transport vechicle automobile body.

Description

Transport vehicle

Technical Field

The utility model belongs to the technical field of the conveyer, especially, relate to a transport vechicle.

Background

An Automated Guided Vehicle (AGV) is a transport Vehicle equipped with an electromagnetic or optical automatic guide device, which can travel along a predetermined guide path and has safety protection and various transfer functions, and belongs to the category of a wheeled mobile robot. The transport vechicle is current common transport apparatus, and AGV transfer robot or AGV dolly main function are concentrated on automatic commodity circulation and are removed the transportation, and the transport vechicle is through the automatic article transportation to appointed place of special landmark navigation, and the most common guide mode is magnetic stripe guide, laser guide, magnetic nail navigation, inertial navigation.

The transportation vehicle is a transportation vehicle which does not need a driver in industrial application and takes a rechargeable battery as a power source. Generally, the traveling route and behavior can be controlled by a computer, or the traveling route can be set up by using an electromagnetic rail, the electromagnetic rail is adhered to the floor, and the unmanned transport vehicle can move and operate according to the information brought by the electromagnetic rail.

At present, the driving wheels of most transport vehicles are constant wheel pressure, the relation between traction force and wheel pressure is considered in the wheel pressure calculation process, the wheel pressure can meet the motion condition when the transport vehicle is fully loaded, and the universal wheels of the transport vehicle are not suspended when the transport vehicle is empty. The weight of the body of the transport vehicle is often designed to be too heavy when the transport vehicle is designed. However, the weight of the body of the transportation vehicle is too large to facilitate loading energy saving, so there is a need in the art to design a transportation vehicle with light weight, and the wheel pressure of the driving wheel of the transportation vehicle can be adjusted and changed to meet the wheel pressure required by full load, and at the same time, to ensure smooth running of the transportation vehicle when the transportation vehicle is empty.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the technical scheme of the utility model a transport vechicle is provided to alleviate the design weight of transport vechicle and improve the transportation of transport vechicle and cross the bank smoothness degree.

The transport vehicle comprises a bottom plate, wherein driving wheels are arranged below the bottom plate, a moving plate is arranged above the bottom plate, and the moving plate applies pressure to the driving wheels to adjust the pressure of the driving wheels to the ground.

Further, the movable plate is connected to the base plate by a hinge assembly.

Further, the hinge assembly includes a hinge lever rotatably connected, the hinge lever including a first link and a second link, the first link and the second link being rotatably connected.

Furthermore, two ends of the first connecting rod are respectively a connecting end and a movable end, the connecting end of the first connecting rod is movably connected with the bottom plate, and the movable end of the first connecting rod abuts against the outer surface of the bottom of the movable plate; the two ends of the second connecting rod are respectively a connecting end and a movable end, the connecting end of the second connecting rod is movably connected with the movable disc, and the movable end of the second connecting rod is movably supported on the upper surface of the bottom plate.

Further, the movable end of the first connecting rod and the movable end of the second connecting rod are both provided with movable wheels.

Further, the middle part of the first connecting rod is rotatably connected with the middle part of the second connecting rod.

Furthermore, a guide rod is further arranged on the moving disc, and the moving disc applies pressure to the driving wheel through the guide rod so as to adjust the pressure of the driving wheel to the ground.

Furthermore, the driving wheel is connected with the bottom plate through a wheel support, and the guide rod is connected with the wheel support.

Furthermore, a guide sleeve is arranged on the wheel support, the guide rod is connected with the guide sleeve in a matched mode and allows the guide rod to move in the guide sleeve, and an elastic buffer piece is arranged on the guide rod.

Further, the transport vehicle is an automatic guided transport vehicle.

The utility model discloses the transport vechicle is through setting up mobilizable removal dish to through the pressure that removes dish, guide bar and spring adjustment drive wheel pair ground, thereby realize that the pressure on drive wheel pair ground is adjustable, make the transport vechicle fully loaded with when empty load the wheel pressure adjustable, reduce the design weight of transport vechicle automobile body.

Drawings

The present invention will be described in more detail hereinafter based on embodiments and with reference to the accompanying drawings.

Fig. 1 is a front view of an embodiment of the transportation cart of the present invention;

fig. 2-3 are perspective views of embodiments of the transportation cart of the present invention;

fig. 4 is a schematic structural diagram of the transportation vehicle in an unloaded state;

fig. 5 is the structure schematic diagram of the utility model discloses under the full load condition of transport vechicle.

The reference numbers are as follows: a moving plate-101, a hinge assembly-102, a wheel bracket-103, a guide bar-104, a spring-105, a moving wheel-106, a bottom plate-107, a universal wheel-108, a guide sleeve-109 and a driving wheel-110.

In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1-3, the transportation vehicle of the present invention includes a bottom plate 107, wheels and driving wheels 110 are disposed below the bottom plate 107, the wheels are disposed around the bottom plate 107, the driving wheels 110 are preferably disposed in the middle of the bottom plate 107, for example, the driving wheels 110 are disposed on two sides of the middle of the bottom plate 107, and the driving wheels 110 may be disposed at other positions. The drive wheel 110 is preferably connected to the base plate 107 by a wheel bracket 103. The wheels disposed around the bottom plate 107 are preferably universal wheels 108, and the driving wheels 110 are powered by a motor to drive the transportation vehicle, which is preferably an automated guided transportation vehicle.

The movable disc 101 is arranged above the bottom plate 107, the movable disc 101 is connected above the bottom plate 107, and by bearing an article or applying pressure on the movable disc 101, pressure can be applied to the driving wheel to increase the wheel pressure of the driving wheel 110, so that the adjustment of the ground pressure by the driving wheel 110 is realized, different wheel pressures are provided for the driving wheel 110, and different application scenarios are applicable, wherein the wheel pressure of the driving wheel 110 refers to the pressure of the driving wheel 110 on the ground or the support under the driving wheel 110.

Preferably, the movable plate 101 is connected to the bottom plate 107 through the hinge assembly 102, the hinge assembly 102 includes hinge rods that are hinged or rotatably connected, the hinge rods are preferably arranged in a crossed manner, for example, the hinge rods include a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are crossed and rotatably connected or hinged, a middle portion of the first connecting rod is connected to a middle portion of the second connecting rod, the first connecting rod and the second connecting rod are rotatably connected at a middle position, one end of the first connecting rod is a connecting end, the other end of the first connecting rod is a movable end, the connecting end of the first connecting rod is rotatably connected to the bottom plate 107, and the movable end of the other end of the first connecting rod abuts against the outer bottom surface of the movable plate 101 and can move along the outer bottom surface of the movable plate 101. One end of the second connecting rod is a connecting end, the other end of the second connecting rod is a movable end, the connecting end of the second connecting rod is rotatably connected with the movable disc 101, and the movable end of the second connecting rod is movably supported on the upper surface of the bottom plate 107 and can move along the upper surface of the bottom plate 107.

The movable ends of the first and second links are preferably provided with a moving wheel 106 to facilitate the movement of the movable end of the first link along the bottom outer surface of the moving plate 101 and the movement of the movable end of the second link along the upper surface of the bottom plate 107. Thus, the moving tray 101 is coupled above the base plate 107, and when an article is carried on or pressure is applied to the moving tray 101, pressure may be applied to the driving wheel 110 to increase the pressure of the driving wheel 110 against the ground.

The movable plate 101 is further provided with a guide rod 104, the guide rod 104 is connected with the movable plate 101, and when an article is loaded or pressure is applied on the movable plate 101, the movable plate 101 applies pressure to the driving wheel 110 through the guide rod 104 so as to adjust the pressure of the driving wheel 110 on the ground. The guide rod 104 is connected, e.g., movably connected, to the wheel support 103, the pressure on the movable disk 101 is transmitted to the wheel support 103 and further transmitted to the driving wheel 110 through the guide rod 104, the wheel support 103 is preferably provided with a guide sleeve 109, the guide rod 104 is connected with the guide sleeve 109 in a matching manner, the guide rod 104 is provided with an elastic buffer member, which may be a spring 105 or an elastic structure in the prior art, for example, the guide rod 104 extends into the guide sleeve 109 and the guide sleeve 109 allows the guide rod 104 to move in the guide sleeve 109.

As shown in fig. 4-5, for the schematic diagram of the full load and no-load states of the transportation vehicle of the present invention, the compression amount of the elastic buffer member is the largest when the transportation vehicle is full load, and the compression amount of the elastic buffer member is reduced to jack up the movable tray 101 when the transportation vehicle is no-load. The utility model discloses the concrete use of transport vechicle is as follows, wheel pressure adjustment mechanism is like the state of fig. 4 when the transport vechicle is unloaded, when the transport vechicle is full-load or the load is more, the removal wheel 106 of hinge bar moves left, thereby the carriage plate 101 of hinge bar top is driven and moves downwards (to the relative direction who is close to bottom plate 107), carriage plate 101 applys pressure to guide bar 104, guide bar 104 compresses spring 105 under the guide of guide pin bushing 109, carriage plate 101 reduces with drive wheel 110's distance, spring 105's decrement increase, guide bar 104 applys pressure to drive wheel 110 through spring 105, thereby increase drive wheel 110 is to the pressure on ground. Therefore, by adjusting the pressure of the driving wheel 110 on the ground, the impact of the driving wheel 110 of the transport vehicle can be reduced, the transport vehicle has good threshold-passing capability, the guide rod 104 and the spring 105 are used for giving extra pressure to the driving wheel 110, and when the maximum pressure of the driving wheel 110 on the ground is not more than the weight of the vehicle body, the transport vehicle cannot bounce when passing the threshold. And when the transport vechicle is fully loaded, drive wheel 110 needs to possess great wheel pressure (also be the pressure of drive wheel to ground), because the transport vechicle removes and relies on the static friction similar to human walking, the transport vechicle is when moving to satisfy drive wheel 110 static friction and is greater than the traction force that the transport vechicle needs, traction force is less than or equal to friction = mu N (N is the pressure of drive wheel 110 to ground), therefore the wheel pressure of drive wheel 110 (also be the pressure of drive wheel to ground) is bigger, the traction force that can hold is bigger, the load just can be bigger.

While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (10)

1. The transport vehicle is characterized by comprising a bottom plate, wherein driving wheels are arranged below the bottom plate, a moving disc is arranged above the bottom plate, and pressure is applied to the driving wheels through the moving disc so as to adjust the pressure of the driving wheels to the ground.

2. The transporter of claim 1, wherein the moving tray is coupled to the base plate by a hinge assembly.

3. The transporter of claim 2, wherein the hinge assembly comprises a pivotally connected hinge rod comprising a first link and a second link, the first link and the second link being pivotally connected.

4. The transportation vehicle of claim 3, wherein the two ends of the first connecting rod are respectively a connecting end and a movable end, the connecting end of the first connecting rod is movably connected with the bottom plate, and the movable end of the first connecting rod abuts against the outer surface of the bottom of the movable plate; the two ends of the second connecting rod are respectively a connecting end and a movable end, the connecting end of the second connecting rod is movably connected with the movable disc, and the movable end of the second connecting rod is movably supported on the upper surface of the bottom plate.

5. The transporter according to claim 4, wherein the movable end of the first link and the movable end of the second link are each provided with a moving wheel.

6. The transporter according to claim 3, wherein the middle portion of the first link is pivotally connected to the middle portion of the second link.

7. The transportation vehicle of any one of claims 1 to 6, wherein a guide rod is further provided on the moving plate, and the moving plate applies pressure to the driving wheel through the guide rod to adjust the pressure of the driving wheel to the ground.

8. The transporter according to claim 7, wherein the drive wheel is connected to the floor by a wheel bracket, and the guide bar is connected to the wheel bracket.

9. The transportation vehicle of claim 8, wherein the wheel support is provided with a guide sleeve, the guide rod is connected with the guide sleeve in a matching way and allows the guide rod to move in the guide sleeve, and the guide rod is provided with an elastic buffer.

10. The transporter according to claim 1, wherein the transporter is an automated guided transporter.

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