CN216188596U

CN216188596U - Four-way vehicle

Info

Publication number: CN216188596U
Application number: CN202122459906.8U
Authority: CN
Inventors: 李逢晓; 杨桂兰
Original assignee: Nanjing Jinniu Mechanical Manufacture Co ltd
Current assignee: Nanjing Jinniu Mechanical Manufacture Co ltd
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2022-04-05
Anticipated expiration: 2031-10-13

Abstract

The utility model discloses a four-way vehicle which comprises a vehicle body, a main roadway traveling wheel component, a sub roadway traveling wheel component, a two-way traveling assembly, two wheel carrier plates for mounting the main roadway traveling wheel component and lifting components for reversing traveling wheels and lifting and storing, wherein the two wheel carrier plates are symmetrically arranged on the outer side surfaces of two vehicle body wall plates on the periphery of the vehicle body, and relative motion exists between the two wheel carrier plates and the vehicle body under the action of the lifting components; the main roadway traveling wheel components are arranged on the two wheel frame plates, and the sub roadway traveling wheel components are arranged on two corresponding vehicle body wall plates in the vehicle body; the main roadway traveling wheel component and the sub roadway traveling wheel component are in transmission connection; the bidirectional travelling assembly is arranged on a bottom plate of the vehicle body and is connected with part of active travelling wheels in the main roadway travelling wheel component. The four-direction vehicle has the advantages that the whole structure is simple, and the maintenance is convenient; the lifting component completes the switching of the walking direction of the main roadway and the sub roadway and also completes the goods storing and taking action.

Description

Four-way vehicle

Technical Field

The utility model relates to a four-way vehicle.

Background

With the continuous development of the warehousing industry, the four-way vehicle is also gradually used in a warehousing warehouse.

At present, the arrangement of a goods shelf in the existing warehouse is ready, and the existing four-way vehicle with too large size cannot be used; if the goods shelf in the warehouse needs to be replaced according to the existing four-way vehicle, the cost is too high; enterprises have seen a disincentive. Therefore, it is an urgent problem to provide a four-way vehicle having a small size.

Disclosure of Invention

The utility model provides a four-way vehicle, which adopts the technical scheme that:

a four-way vehicle comprises a vehicle body, a main roadway traveling wheel component, a sub roadway traveling wheel component and a two-way traveling assembly, wherein the main roadway traveling wheel component and the sub roadway traveling wheel component are arranged around the vehicle body and travel in the main roadway and the sub roadway under the driving of the two-way traveling assembly; the main roadway traveling wheel component and the sub roadway traveling wheel component are in transmission connection; the bidirectional travelling assembly is arranged on a bottom plate of the vehicle body and is connected with part of active travelling wheels in the main roadway travelling wheel component, and the main roadway travelling wheel component and the sub roadway travelling wheel component work synchronously; the two wheel carrier plates are symmetrically arranged on the outer side surfaces of two vehicle body wall plates on the periphery of the vehicle body, and relative motion exists between the two wheel carrier plates and the vehicle body under the action of the lifting part; the main roadway traveling wheel components are arranged on the two wheel frame plates, and the sub roadway traveling wheel components are arranged on two corresponding vehicle body wall plates in the vehicle body;

the lifting part comprises a driving source, two symmetrical lifting subunits and a rod transmission part which is connected with the two lifting subunits to work synchronously, the driving source is fixed in the vehicle body, and the output of the driving source is connected with the rod transmission part through a transmission assembly;

the two lifting sub-units respectively comprise a screw rod lifter, a sliding plate and at least two idler wheels, the screw rod lifter is horizontally arranged on a bottom plate of the vehicle body, the input end of the screw rod lifter is connected with the rod transmission part, and a screw rod nut in the screw rod lifter is fixed on the sliding plate; the interior face installation of slide laminating automobile body wallboard sets up the same cam groove with gyro wheel quantity on the slide, sets up the waist type groove that corresponds the cam groove and set up vertical direction on the automobile body wallboard, corresponds on the wheel frame board and sets up the gyro wheel mounting hole, and the gyro wheel is packed into in the gyro wheel mounting hole and runs through the waist type groove on the automobile body wallboard and stretches into the cam groove.

According to the four-way vehicle, the component is lifted, namely, the walking direction switching of the main roadway and the sub roadway is completed, and the goods storing and taking action is also completed; the number of parts is reduced, and the size is reduced as a whole.

Preferably, the two ends of the wheel frame plate are pressed on the vehicle body wall plate through press blocks with L-shaped sections, outer wheel frame insert blocks are arranged between inner plate surfaces at the two ends of the wheel frame plate and outer plate surfaces of the vehicle body wall plate, middle wheel frame insert blocks are arranged between the inner plate surfaces at the middle position of the wheel frame plate and the outer plate surfaces of the vehicle body wall plate, and wheel frame plate insert blocks are arranged on the outer plate surfaces at the middle position of the wheel frame plate; the outer wheel frame insert, the middle wheel frame insert and the wheel frame plate insert are all fixed with a vehicle body wall plate; the roller mounting holes on the roller frame plate are distributed from two ends of the roller frame plate to the middle at intervals, and the hole center points of all the roller mounting holes are positioned on a horizontal line; the axle sleeve is packed into in all gyro wheel mounting holes on the wheel frame board, welds between the outer wall of axle sleeve and the wheel carrier board, and the axle sleeve is packed into to the gyro wheel, and the both ends of gyro wheel all set up the retaining ring. The design of the outer wheel frame insert, the middle wheel frame insert and the wheel frame plate insert reduces the friction contact area between the wheel frame plate and the vehicle body wall plate; meanwhile, due to the design of the shaft sleeve in the roller mounting hole, the assembly steps are simplified, and the maintenance and the replacement are convenient.

Preferably, the main roadway traveling wheel component comprises two driving main roadway traveling wheels and two driven main roadway traveling wheels;

the sub-tunnel walking wheel component comprises two groups of driving sub-tunnel walking wheel groups which are symmetrically arranged and two groups of driven sub-tunnel walking wheel groups which are symmetrically arranged, two driving sub-tunnel walking wheels are arranged in the driving sub-tunnel walking wheel groups, and the two driving sub-tunnel walking wheels are in transmission connection; the driven rotor roadway traveling wheel set comprises two driven rotor roadway traveling wheels;

the two driving main roadway traveling wheels are connected through a first long shaft, two ends of the first long shaft are arranged on the inner plate surfaces of the two wheel frame plates through bearing seats, and a sliding groove for the bearing seats to move up and down is formed in a vehicle body wall plate;

two driving sub-roadway traveling wheels symmetrically arranged in the two groups of driving sub-roadway traveling wheel sets are connected through a second long shaft, and the two driving sub-roadway traveling wheels are in transmission connection with two ends of the second long shaft respectively; the second long shaft is in transmission connection with the first long shaft, and two ends of the second long shaft are hinged to the inner plate surfaces of every two corresponding vehicle body wall plates;

the first long shaft is connected with the bidirectional walking assembly;

the wheel shafts of the two driven main roadway traveling wheels are arranged in driven wheel mounting holes formed in the wheel frame plate and extend into vertical lifting waist-shaped holes formed in the vehicle body wall plate and corresponding to the wheel mounting holes;

and wheel shafts of all the driven rotor roadway traveling wheels and the other two driving rotor roadway traveling wheels are arranged in wheel mounting holes formed in a vehicle body wall plate.

Preferably, the axle sleeves are arranged in all the wheel mounting holes, the axle shafts of the travelling wheels are inserted into the axle sleeves, and the retaining rings are arranged at the axle ends of the axle shafts of the travelling wheels. The design of the shaft sleeve simplifies the assembly steps, so that the maintenance and the replacement are convenient; when the travelling wheel needs to be replaced, the travelling wheel can be pulled out only by taking down the check ring.

Preferably, the transmission assembly between the output of the driving source and the rod transmission part is chain transmission; the rod transmission part is connected by a universal joint, and a universal joint rod is supported on a bottom plate of a vehicle body through two roller bearing seats. The universal joint connection has the function of eliminating the axial coaxiality error caused by deformation, manufacturing error, assembly error and the like.

According to the technical scheme, the two limiting rails are arranged on the inner plate surface of the vehicle body wall plate which is attached to the sliding plate, the sliding plate is clamped between the two limiting rails, the sliding surface of each of the two limiting rails is fixedly provided with a wear-resisting plate, and the outer side surface, perpendicular to the sliding surface, of each of the two limiting rails is fixedly provided with a baffle plate for placing the sliding plate to slide off.

Compared with the prior art, the utility model has the beneficial effects that:

the four-way vehicle has a simple integral structure and is convenient to maintain; the lifting component completes the switching of the walking directions of the main roadway and the sub roadway and also completes the goods storing and taking action; the number of parts is reduced, and the size is reduced as a whole.

Drawings

Fig. 1 is a first perspective view of the four-way vehicle of the present embodiment.

Fig. 2 is a top view of fig. 1.

Fig. 3 is an assembly schematic of the skid plate, body panel and wheel frame plate within the lift mechanism.

Fig. 4 is a schematic view of the assembly of the wheel well plate with the body panel.

Fig. 5 is an assembly schematic of a body panel, a wheel frame plate, a driving main roadway road wheel and a driven main roadway road wheel.

Detailed Description

The technical solution of the present invention is described in detail below, but the scope of the present invention is not limited to the embodiments.

In order to make the disclosure of the present invention more comprehensible, the following description is further made in conjunction with fig. 1 to 5 and the detailed description.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model to the specific embodiments described

Example (b):

as shown in fig. 1, the four-way vehicle in this embodiment includes a vehicle body 1, a main roadway traveling wheel component 2, a sub roadway traveling wheel component 3, a bidirectional traveling assembly 4, two wheel frame plates 5, and a lifting component 6 for reversing traveling wheels and lifting and storing.

As shown in fig. 1, in the present embodiment, the vehicle body 1 is rectangular as a whole, is formed by welding four vehicle body panels 1-1 on the periphery and a floor, and is surface-treated to form the vehicle body 1, and the height of the vehicle body 1 as a whole is as low as possible, and the vehicle body 1 is preferably 40 to 50cm in height in the present embodiment.

As shown in fig. 1, the main roadway traveling wheel component 2 and the sub roadway traveling wheel component 3 are arranged around the vehicle body 1, and the bidirectional traveling assembly 4 and the lifting component 6 are arranged on the bottom plate of the vehicle body 1 and at the edge of the bottom plate of the vehicle body 1, so that more mounting positions are reserved for hardware of the electric control part.

As shown in fig. 1, a main roadway traveling wheel component 2 and a sub roadway traveling wheel component 3 are arranged around a vehicle body 1 and travel in the main roadway and the sub roadway under the drive of a bidirectional traveling assembly 4; the main roadway traveling wheel component 2 and the sub roadway traveling wheel component 3 are in transmission connection; the bidirectional travelling assembly 4 is arranged on a bottom plate of the vehicle body 1 and is connected with part of active travelling wheels in the main roadway travelling wheel component 2, and the main roadway travelling wheel component 2 and the sub roadway travelling wheel component 3 work synchronously; the two wheel frame plates 5 are symmetrically arranged on the outer side surfaces of the two vehicle body wall plates 1-1 at the periphery of the vehicle body 1, and relative motion exists between the two wheel frame plates 5 and the vehicle body 1 under the action of the lifting part 6; the main roadway traveling wheel components 2 are arranged on the two wheel frame plates 5, and the sub roadway traveling wheel components 3 are arranged on the two corresponding vehicle body wall plates 1-1 in the vehicle body 1.

As shown in fig. 1 and 2, the lifting member 6 includes a driving source 6-1, two symmetrical lifting sub-units, and a rod transmission member connecting the two lifting sub-units to operate synchronously, the driving source 6-1 is fixed on the floor of the vehicle body 1, and the output of the driving source 6-1 is connected to the rod transmission member through a transmission assembly. As shown in fig. 2, the driving source 6-1 in the present embodiment is a servo motor with a reduction box, and the prior art is known. The output of the driving source 6-1 is connected with the rod transmission part through chain transmission.

The two lifting sub-units are symmetrically arranged at the edge positions of two opposite edges of the bottom plate of the vehicle body 1, and simultaneously drive the two wheel frame plates 5 to perform lifting and falling actions relative to the vehicle body 1. The main roadway traveling wheel components 2 arranged on the two wheel frame plates 5 are lifted and fallen synchronously in the lifting and falling processes.

The walking and goods taking process: when the four-way vehicle travels in the main roadway, the main roadway traveling wheel component 2 falls on the wheel track of the main roadway, and the sub roadway traveling wheel component 3 is suspended in the air and does not contact the wheel track of the sub roadway; note that the main tunnel traveling wheel part 2 and the sub tunnel traveling wheel part 3 are located on two planes, and when the four-way vehicle travels in the main tunnel, the sub tunnel traveling wheel part 3 is higher than the main tunnel traveling wheel part 2.

When the four-way vehicle needs to enter the sub-tunnel to walk and pick up goods, the lifting part 6 acts at the moment to drive the two wheel frame plates 5 to lift relative to the vehicle body 1 and lift to a walking station of the sub-tunnel; at this moment, the main roadway traveling wheel component 2 is lifted relative to the vehicle body 1 (that is, the sub roadway traveling wheel component 3 descends), the sub roadway traveling wheel component 3 falls on a wheel track of the sub roadway, the sub roadway traveling wheel component 3 travels on the wheel track of the sub roadway to reach a goods taking point, at this moment, the four-way vehicle needs to be located below goods to be taken (the position below the goods to be taken must be lower than the goods to be taken, and the four-way vehicle can enter the position below the goods to be taken), the lifting component 6 carries out lifting action again to lift the two wheel frame plates 5 to a goods taking station, and the goods to be taken are lifted in the lifting process of the two wheel frame plates 5.

And returning to the process:

after the four-way vehicle gets the goods, the goods come out from the sub-roadway (at the moment, the two wheel frame plates 5 are at the highest position of the lifting state); after the goods arrive at the main roadway, the lifting part 6 drives the two wheel frame plates 5 to fall, the main roadway traveling wheel part 2 falls on the wheel track of the main roadway, at the moment, the sub roadway traveling wheel part 3 is suspended above the wheel track of the sub roadway, the main roadway travels, and one-time goods taking is completed.

As shown in fig. 1 and 2, both lifting subunits comprise a screw elevator 6-2, a slide 6-3 and at least two rollers 6-4.

As shown in fig. 1, the two lifting sub-units are symmetrically distributed on the edges of both sides of the bottom plate of the car body 1. The screw lifter 6-2 is horizontally disposed on the floor of the vehicle body 1, and is a commercially available member in this embodiment. The input end of the screw rod lifter 6-2 is connected with the rod transmission part. In this embodiment, the lever transmission members 6 to 5 are preferably connected by a universal joint, and the universal joint lever is supported on the floor of the vehicle body 1 by two roller bearing blocks.

As shown in figure 1, a screw nut 6-2-1 in a screw rod lifter 6-2 is fixed on a sliding plate 6-3; the sliding plate 6-3 is attached to the inner plate surface of the vehicle body wall plate 1-1. In the embodiment, the screw nut 6-2-1 and the sliding plate 6-3 are connected by a T-shaped connecting plate, and the connecting plate is fixed with the screw nut 6-2-1 and the sliding plate 6-3 through bolts.

As shown in FIG. 3, in the present embodiment, the preferred number of the rollers 6-4 is three, the sliding plate 6-3 is provided with three cam grooves 6-3-1, the number of which is the same as that of the rollers 6-4, and the three cam grooves 6-3-1 on the sliding plate 6-3 are arranged at intervals from the two ends of the sliding plate 6-3 to the middle. The rollers 6-4 at two ends in the two rollers 6-4 are stressed, and the roller 6-4 in the middle of the three rollers 6-4 plays a role in preventing over-positioning; meanwhile, the rollers 6-4 at the two ends are prevented from losing efficacy, so that the four-way vehicle is prevented from toppling. After the rollers 6-4 at the two ends fail, the roller 6-4 in the middle starts to work.

As shown in FIG. 3, a waist-shaped groove in the vertical direction is formed on the body wall plate 1-1 corresponding to the cam groove 6-3-1, and the waist-shaped groove in the vertical direction on the body wall plate 1-1 plays a role in guiding the lifting and falling of the wheel frame plate 5.

As shown in figure 4, the wheel frame plate 5 is correspondingly provided with a roller mounting hole 5-1, and the roller 6-4 is arranged in the roller mounting hole 5-1 and penetrates through a waist-shaped groove on the vehicle body wall plate 1-1 to extend into the cam groove 6-3-1.

As shown in fig. 4, the roller mounting holes 5-1 on the wheel frame plate 5 are distributed from the two ends of the wheel frame plate 5 to the middle at intervals, and the hole center points of all the roller mounting holes 5-1 are located on a horizontal line; shaft sleeves 11 are arranged in all the roller mounting holes 5-1 on the wheel carrier plate 5, the outer wall of each shaft sleeve 11 is welded with the wheel carrier plate 5, rollers 6-4 are arranged in the shaft sleeves 11, and two ends of each roller 6-4 are provided with check rings. The design of the shaft sleeve 11 in the roller mounting hole simplifies the assembly steps, so that the maintenance and the replacement are convenient. When the installation is carried out, the rollers 6-4 are only required to be arranged in the shaft sleeve 11 and the check ring is arranged; the roller needs to be maintained and disassembled, the check ring is taken down, and the roller 6-4 is pulled out, so that a new roller can be directly replaced.

As shown in fig. 5, both ends of the wheel frame plate 5 are pressed against the body panel 1-1 through the pressing blocks 7 having an L-shaped cross section, the outer wheel frame insert 8 is provided between the inner plate surfaces of both ends of the wheel frame plate 5 and the outer plate surface of the body panel 1-1, the middle wheel frame insert 9 is provided between the inner plate surface of the middle position of the wheel frame plate 5 and the outer plate surface of the body panel 1-1, and the wheel frame plate insert 10 is provided on the outer plate surface of the middle position of the wheel frame plate 5; the outer wheel carrier insert 8, the middle wheel carrier insert 9 and the wheel carrier plate insert 10 are all fixed with the vehicle body wall plate 1-1; the design of the outer wheel frame insert, the middle wheel frame insert and the wheel frame plate insert reduces the friction contact area of the wheel frame plate and the vehicle body wall plate.

As shown in fig. 4, the wheel frame plate inserts 10 are fixed on the vehicle body wall plate 1-1 through bolts, vertical waist-shaped grooves are formed in the wheel frame plate 5 at the positions corresponding to the fixing bolts of the wheel frame plate inserts 10, and the number of the wheel frame plate inserts 10 is four, so that the wheel frame plate inserts 10 are fixed firmly as much as possible; meanwhile, the size of the wheel frame plate insert 10 can be as large as possible, and parts required for electric control can be fixed on the outer surface of the wheel frame plate insert 10. The wheel frame plate insert 10 is a steel member, further improving the strength of the wheel frame plate 5.

The design of the main tunnel traveling wheel part 2 and the sub tunnel traveling wheel part 3 in the present embodiment is a known technique in the art.

In the known patent, ZL 201610034155.6, title of the utility model: a multi-wheeled four-way vehicle is disclosed in this patent document.

As shown in fig. 1 and 2, in the four-way vehicle, the main roadway traveling wheel component 2 includes two driving main roadway traveling wheels 2-1 and two driven main roadway traveling wheels 2-2; the sub-roadway traveling wheel component 3 comprises two groups of symmetrically arranged driving sub-roadway traveling wheel sets and two groups of symmetrically arranged driven sub-roadway traveling wheel sets, two main rotor roadway traveling wheels 3-1 are arranged in the driving sub-roadway traveling wheel sets, and the two main rotor roadway traveling wheels 3-1 are in transmission connection; the driven rotor roadway traveling wheel set comprises two driven rotor roadway traveling wheels 3-2.

In the embodiment, the two main rotor roadway traveling wheels 3-1 are in chain wheel transmission, so that the main rotor roadway traveling wheels can cross gaps in the roadway.

As shown in fig. 2, two driving main roadway road wheels 2-1 are connected through a first long shaft 12, two ends of the first long shaft 12 are arranged on the inner plate surfaces of two wheel frame plates 5 through bearing seats 13, and a sliding groove 1-1-2 for the bearing seats 13 to move up and down is formed in a vehicle body wall plate 1-1. As shown in fig. 3.

As shown in fig. 2, two main rotor roadway traveling wheels 3-1 symmetrically arranged in two sets of main rotor roadway traveling wheels are connected through a second long shaft 17, and the two main rotor roadway traveling wheels 3-1 are respectively in transmission connection with two ends of the second long shaft 17. As shown in figure 1, the driving sub roadway road wheels 3-1 and the second long shaft 17 are in gear transmission.

As shown in fig. 1 and 2, the second long shaft 17 is in transmission connection with the first long shaft 12, and two ends of the second long shaft 17 are hinged on the inner plate surfaces of two corresponding vehicle body wall plates 1-1. In this embodiment, the second long shaft 17 and the first long shaft 12 are in chain transmission. The first long shaft 12 is connected with the bidirectional walking assembly 4, and power is transmitted to the second long shaft 17 through chain transmission. In this embodiment, a power source in the bidirectional traveling assembly 4 drives the traveling wheels in the main tunnel traveling wheel component 2 and the sub-tunnel traveling wheel component 3 at the same time.

As shown in figure 3, wheel shafts of two driven main roadway road wheels 2-2 are installed in driven wheel mounting holes 5-2 formed in a wheel frame plate 5 and extend into vertical lifting waist-shaped holes 1-1-1 formed in a vehicle body wall plate 1-1 and corresponding to the wheel mounting holes 5-2. The wheel shafts of all the slave rotor roadway traveling wheels 3-2 and the other two master rotor roadway traveling wheels 3-1 are all arranged in wheel mounting holes 5-2 formed in the vehicle body wall plate 1-1. As shown in fig. 1 and 2.

As shown in fig. 4, in this embodiment, in a specific embodiment, a main roadway spare road wheel may be arranged on the wheel frame plate 5; the wheel frame plate 5 is provided with a spare travelling wheel 5-3. Spare road wheels of the sub-tunnel are also additionally arranged on the body wall plate 1-1 for mounting the sub-tunnel walking wheel component 3, and spare road wheels 5-3 are also arranged on the body wall plate 1-1.

In this embodiment, as shown in fig. 5, a sleeve 11 is installed in all the wheel mounting holes 5-2 and the spare road wheels 5-3, the axles of the road wheels are inserted into the sleeve 11, and a retainer ring is installed at the axle ends of the axles of the road wheels.

As shown in figure 3, two limit rails 14 are arranged on the inner plate surface of the vehicle body wall plate 1-1 which is attached to the sliding plate 6-3, the sliding plate 6-3 is clamped between the two limit rails 14, and a layer of wear-resisting plate 15 is fixed on the sliding surface of the two limit rails 14. The two limit rails 14 provide a guide function for the movement of the sliding plate 6-3; the arrangement of wear plates 15 solves the direct metal friction between the skid plate 6-3 and the check track 14.

As shown in figure 1, a baffle plate 16 for placing the sliding plate 6-3 to slide off is fixed on the outer side surface of the two limit rails 14 perpendicular to the sliding surface.

Referring to fig. 1, the bi-directional walking assembly 4 in this embodiment is known in the art. In the known patent, ZL 202020873736.0, title of the utility model: the bidirectional walking power assembly with the chain pressing mechanism is fully disclosed. The method comprises the following specific steps: the known patent, ZL 202020873736.0, discloses a bidirectional walking power assembly with a chain hold-down mechanism therein, which comprises a bidirectional output gear box and a chain hold-down mechanism, wherein the bidirectional output gear box comprises a power source, a power output shaft, an assembled gear box, a sub-roadway driving sprocket, a driving spiral bevel gear, a turning spiral bevel gear and a main roadway driving sprocket. The chain pressing mechanism comprises a pressing chain wheel, a rotating arm support and a push-pull swing arm, wherein the pressing chain wheel is matched with the chain. The bidirectional output gear box is compact in overall size and meets the installation requirement of small space in the four-way vehicle body; meanwhile, the chain pressing mechanism is compact in overall structure, simple in structure and high in reliability, and when the power input shaft of the main roadway travelling wheel rises or falls under the driving of the lifting mechanism, the rotating arm swings around a middle hinge point, so that the left end and the right end of the rotating arm alternately rise or fall; when the power input shaft of the driving wheel of the main roadway rises, the right end of the rotating arm descends to press the chain downwards to tighten the chain.

As shown in fig. 1 and 2, ZL 202020873736.0, title of the utility model: the base plate 30 disclosed in the bidirectional walking power assembly with the chain pressing mechanism is directly arranged on the bottom plate of the vehicle body 1, or the base plate 30 can be removed, and the bottom plate of the vehicle body 1 is directly used for replacing the base plate 30 in the bidirectional walking power assembly with the chain pressing mechanism.

As shown in fig. 1 and 2, ZL 202020873736.0, title of the utility model: a power input shaft 27 of a main roadway road wheel disclosed in the bidirectional walking power assembly with a chain pressing mechanism is a first long shaft 12 which is connected between two driving main roadway road wheels 2-1 in the embodiment.

Therefore, for the bidirectional traveling assembly 4 used in the present embodiment, the unpublished structure is disclosed in the published patent, ZL 202020873736.0, title of the utility model: a bidirectional walking power assembly with a chain pressing mechanism.

The working process of the four-way vehicle of the embodiment is as follows:

1. the walking and goods taking process: the four-way vehicle travels in the main roadway;

the four-way vehicle is placed on a track of a main roadway, and the two-way walking assembly 4 is started to start working; the main roadway traveling wheel component 2 falls on the wheel track of the main roadway, and the sub roadway traveling wheel component 3 is suspended in the air and does not contact the wheel track of the sub roadway at the moment.

When the vehicle moves to a sub-roadway to be entered, the bidirectional walking assembly 4 is paused; the 6 actions of hoisting part this moment, two blocks of wheel frame plates of drive 5 promote for automobile body 1, promote the walking station in sublevel, specifically do: the output of the driving source 6-1 is transmitted to the universal joint rod and transmitted to the two lead screw lifters 6-2 through chain transmission, lead screws of the output of the lead screw lifters 6-2 rotate to drive the lead screw nuts 6-2-1 to move, the sliding plate 6-3 moves linearly, and the roller 6-4 in the sliding plate 6-3 pushes the wheel frame plate 5 to be lifted relative to the vehicle body 1 under the action of the cam grooves 6-3-1 on the sliding plate 6-3 and the waist-shaped grooves in the vertical direction on the vehicle body wall plate 1-1. At this time, in the ascending process of the main roadway traveling wheel component 2, the sub roadway traveling wheel component 3 falls down onto the wheel track of the sub roadway.

The bidirectional travelling assembly 4 is restarted to start working, and the four-way vehicle travels in the sub-roadway;

when the four-way vehicle reaches the goods taking position, the two-way walking assembly 4 is paused; at the moment, the lifting part 6 starts to work, carries out lifting action, lifts the two wheel frame plates 5 to a goods taking station, and lifts goods to be taken up in the lifting process of the two wheel frame plates 5;

2. and returning to the process:

The four-way vehicle has a simple overall structure and is convenient to maintain; the lifting component completes the switching of the walking directions of the main roadway and the sub roadway and also completes the goods storing and taking action; the number of parts is reduced, and the size is reduced as a whole.

As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. A four-way vehicle comprises a vehicle body (1), a main roadway traveling wheel component (2), a sub roadway traveling wheel component (3) and a two-way traveling assembly (4), wherein the main roadway traveling wheel component (2) and the sub roadway traveling wheel component (3) are arranged around the vehicle body (1) and are driven by the two-way traveling assembly (4) to travel in the main roadway and the sub roadway; the main roadway traveling wheel component (2) is in transmission connection with the sub roadway traveling wheel component (3); the bidirectional travelling assembly (4) is arranged on a bottom plate of the vehicle body (1) and is connected with part of active travelling wheels in the main roadway travelling wheel component (2), and the main roadway travelling wheel component (2) and the sub roadway travelling wheel component (3) work synchronously;

the device is characterized by further comprising two wheel carrier plates (5) for mounting the main roadway traveling wheel components (2) and lifting components (6) for reversing traveling wheels and lifting and storing, wherein the two wheel carrier plates (5) are symmetrically arranged on the outer side surfaces of two vehicle body wall plates (1-1) on the periphery of the vehicle body (1), and relative motion exists between the two wheel carrier plates (5) and the vehicle body (1) under the action of the lifting components (6); the main roadway traveling wheel components (2) are arranged on the two wheel frame plates (5), and the sub roadway traveling wheel components (3) are arranged on two corresponding vehicle body wall plates (1-1) in the vehicle body (1);

the lifting part (6) comprises a driving source (6-1), two symmetrical lifting subunits and a rod transmission part for connecting the two lifting subunits to work synchronously, the driving source (6-1) is fixed in the vehicle body (1), and the output of the driving source (6-1) is connected with the rod transmission part through a transmission assembly;

the two lifting sub-units respectively comprise a screw rod lifter (6-2), a sliding plate (6-3) and at least two idler wheels (6-4), the screw rod lifter (6-2) is horizontally arranged on a bottom plate of the vehicle body (1), the input end of the screw rod lifter (6-2) is connected with a rod transmission part, and a screw rod nut (6-2-1) in the screw rod lifter (6-2) is fixed on the sliding plate (6-3); the sliding plate (6-3) is attached to the inner plate surface of the vehicle body wall plate (1-1) and installed, the sliding plate (6-3) is provided with cam grooves (6-3-1) the number of which is the same as that of the rollers (6-4), the vehicle body wall plate (1-1) is provided with waist-shaped grooves corresponding to the cam grooves (6-3-1) in the vertical direction, the wheel frame plate (5) is correspondingly provided with roller mounting holes (5-1), and the rollers (6-4) are installed in the roller mounting holes (5-1) and penetrate through the waist-shaped grooves in the vehicle body wall plate (1-1) to extend into the cam grooves (6-3-1).

2. The quadricycle of claim 1, wherein both ends of the wheel frame plate (5) are pressed against the body panel (1-1) by a pressing block (7) having an "L" shaped cross section, an outer wheel frame insert (8) is provided between an inner plate surface of both ends of the wheel frame plate (5) and an outer plate surface of the body panel (1-1), a middle wheel frame insert (9) is provided between the inner plate surface at a middle position of the wheel frame plate (5) and the outer plate surface of the body panel (1-1), and a wheel frame plate insert (10) is provided on the outer plate surface at the middle position of the wheel frame plate (5); the outer wheel frame insert (8), the middle wheel frame insert (9) and the wheel frame plate insert (10) are all fixed with a vehicle body wall plate (1-1);

the roller mounting holes (5-1) on the roller frame plate (5) are distributed from two ends of the roller frame plate (5) to the middle at intervals, and the hole center points of all the roller mounting holes (5-1) are positioned on a horizontal line; the wheel carrier plate (5) is provided with all the roller mounting holes (5-1) which are internally provided with the shaft sleeves (11), the outer walls of the shaft sleeves (11) are welded with the wheel carrier plate (5), the rollers (6-4) are arranged in the shaft sleeves (11), and the two ends of the rollers (6-4) are provided with the check rings.

3. The four-way vehicle according to claim 1, wherein the main roadway traveling wheel component (2) comprises two driving main roadway traveling wheels (2-1) and two driven main roadway traveling wheels (2-2);

the sub-roadway traveling wheel component (3) comprises two groups of driving sub-roadway traveling wheel sets which are symmetrically arranged and two groups of driven sub-roadway traveling wheel sets which are symmetrically arranged, two driving sub-roadway traveling wheels (3-1) are arranged in each driving sub-roadway traveling wheel set, and the two driving sub-roadway traveling wheels (3-1) are in transmission connection; the driven sub-roadway traveling wheel set comprises two driven sub-roadway traveling wheels (3-2);

the two driving main roadway traveling wheels (2-1) are connected through a first long shaft (12), two ends of the first long shaft (12) are arranged on the inner plate surfaces of the two wheel frame plates (5) through bearing seats (13), and a sliding groove (1-1-2) for the bearing seats (13) to move up and down is formed in a vehicle body wall plate (1-1);

two driving sub-roadway traveling wheels (3-1) symmetrically arranged in the two groups of driving sub-roadway traveling wheel sets are connected through a second long shaft (17), and the two driving sub-roadway traveling wheels (3-1) are respectively in transmission connection with two ends of the second long shaft (17); the second long shaft (17) is in transmission connection with the first long shaft (12), and two ends of the second long shaft (17) are hinged to the inner plate surfaces of the corresponding vehicle body wall plates (1-1);

the first long shaft (12) is connected with the bidirectional walking assembly (4);

the wheel shafts of the two driven main roadway traveling wheels (2-2) are arranged in driven wheel mounting holes (5-2) formed in a wheel frame plate (5) and extend into vertical lifting waist-shaped holes (1-1-1) formed in the corresponding wheel mounting holes (5-2) on a vehicle body wall plate (1-1);

the wheel shafts of all the slave rotor roadway traveling wheels (3-2) and the other two master rotor roadway traveling wheels (3-1) are all arranged in wheel mounting holes (5-2) formed in a vehicle body wall plate (1-1).

4. A four-way vehicle according to claim 3, wherein a bush (11) is fitted into all the wheel mounting holes (5-2), the axle of the road wheel is inserted into the bush (11), and a retaining ring is fitted to the axial end of the axle of the road wheel.

5. Four-way vehicle according to claim 1, characterized in that the transmission assembly between the output of the drive source (6-1) and the lever transmission member is a chain transmission; the rod transmission part is connected by a universal joint, and a universal joint rod is supported on a bottom plate of the vehicle body (1) through two roller bearing seats.

6. Four-way vehicle according to claim 1, characterized in that two limit rails (14) are arranged on the inner surface of the body panel (1-1) which is attached to the skid plate (6-3), the skid plate (6-3) is clamped between the two limit rails (14), the two limit rails (14) are fixed with a wear plate (15) on the sliding surface, and a baffle plate (16) for placing the skid of the skid plate (6-3) is fixed on the outer side surface of the two limit rails (14) which is perpendicular to the sliding surface.