Four-way transport vehicle

Abstract

The present invention relates to a four-way transport vehicle, comprising a vehicle body, an X-direction moving mechanism, a Y-direction moving mechanism, a first driving mechanism, a lifting and reversing mechanism and a power supply, wherein the X-direction moving mechanism, the Y-direction moving mechanism, the first driving mechanism, the lifting and reversing mechanism and the power supply are all arranged in the vehicle body, the first driving mechanism is connected with the X-direction moving mechanism and the Y-direction moving mechanism, and the Y-direction moving mechanism is arranged on the lifting end of the lifting and reversing mechanism; the first driving mechanism is used to drive the X-direction moving mechanism and the Y-direction moving mechanism, the lifting and reversing mechanism is used to drive the top cargo plate to rise, and the lifting and reversing mechanism is also used to drive the X-direction moving mechanism away from the ground, so that the Y-direction moving mechanism drives the vehicle body to move along the Y-axis direction, or drives the X-direction moving mechanism to move downward to contact the ground, so that the X-direction moving mechanism drives the vehicle body to move along the X-axis direction. The present invention solves the problems of high cost, high processing accuracy and high assembly accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of transport vehicles, in particular to a four-way transport vehicle. Background Art

[0002] With the continuous improvement of living standards, people's demand for online shopping is increasing, and the importance of logistics is becoming increasingly higher. In modern logistics and transportation, more and more AGV transport vehicles are replacing manual operations to reduce the labor of logistics staff and improve handling efficiency.

[0003] AGV (Automated Guided Vehicle, AGV for short), also commonly known as AGV cart, refers to a transport vehicle equipped with electromagnetic or optical automatic navigation devices, capable of traveling along a prescribed navigation path, with safety protection and various transfer functions. In the logistics system, it can carry out transportation by itself without the need for driver operation. The AGV is equipped with an automatic guidance system, which can ensure that the system can automatically travel along a predetermined route without the need for manual navigation, and automatically transport goods or materials from the starting point to the destination. Generally, its travel path and behavior can be controlled by a computer, or its travel path can be established using an electromagnetic path-following system. The electromagnetic track is attached to the floor, and the unmanned transport vehicle relies on the information brought by the electromagnetic track to move and act, and uses a rechargeable battery as its power source;

[0004] AGV is characterized by strong applicability, high degree of automation and high level of intelligence. The driving path of AGV can be flexibly changed according to the requirements of storage space, production process, etc., and the cost of changing the running path is very low compared with traditional conveyor belts and rigid transmission lines. AGV is generally equipped with a loading and unloading mechanism, which can automatically interface with other logistics equipment to realize the automation of the whole process of loading and unloading and handling of goods and materials. It can be applied to modern logistics systems.

[0005] However, existing AGVs have the following disadvantages:

[0006] The existing four-way pallet trucks of the same type mostly use a cam mechanism to drive the gear transmission method. The cam mechanism has a complex structure and is difficult to manufacture. The gear transmission method requires multiple gears to be meshed side by side. Too many gear transmission mechanisms are required, and the processing and assembly precision requirements are high. The hardware cost is extremely high and the maintenance is difficult. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a four-way transport vehicle in view of the above shortcomings, which solves the problems of high cost, high processing precision and high assembly precision.

[0008] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0009] A four-directional transport vehicle comprises a vehicle body, an X-direction moving mechanism, a Y-direction moving mechanism, a first driving mechanism, a lifting and reversing mechanism and a power supply, wherein the X-direction moving mechanism, the Y-direction moving mechanism, the first driving mechanism, the lifting and reversing mechanism and the power supply are all arranged in the vehicle body, the first driving mechanism is connected with the X-direction moving mechanism and the Y-direction moving mechanism, and the Y-direction moving mechanism is arranged on the lifting end of the lifting and reversing mechanism;

[0010] The first driving mechanism is used to drive the X-direction moving mechanism and the Y-direction moving mechanism, the lifting and reversing mechanism is used to drive the top cargo plate to rise, and the lifting and reversing mechanism is also used to drive the X-direction moving mechanism away from the ground so that the Y-direction moving mechanism drives the vehicle body to move along the Y-axis direction, or drives the X-direction moving mechanism to move downward to contact the ground so that the X-direction moving mechanism drives the vehicle body to move along the X-axis direction;

[0011] The power supply is electrically connected to the first driving mechanism and the lifting and reversing mechanism, and the power supply is used to provide electric energy to the first driving mechanism and the lifting and reversing mechanism.

[0012] Furthermore, the first driving mechanism includes a main motor and a first reducer, both of which are arranged in the vehicle body, the output end of the main motor is connected to the input end of the first reducer, and the first reducer is provided with two mutually perpendicular first output ends and second output ends, the first output end is connected to the input end of the X-direction moving mechanism, and the second output end is connected to the input end of the Y-direction moving mechanism.

[0013] Further, the X-direction moving mechanism includes an X-direction first wheel and an X-direction second wheel, at least one X-direction first wheel is respectively arranged at the front end of the left and right sides of the vehicle body, and at least one X-direction second wheel is respectively arranged at the rear end of the left and right sides of the vehicle body, and the X-direction first wheel and the X-direction second wheel on the left and right sides of the vehicle body are respectively connected by a first transmission shaft and a connecting shaft, the first transmission shaft and the connecting shaft are both arranged on the lifting end of the jacking reversing mechanism, and the middle part of the first transmission shaft is connected to the first output end;

[0014] The Y-direction moving mechanism includes a Y-direction first wheel, a Y-direction second wheel and a second transmission shaft. At least one Y-direction first wheel is respectively arranged at the left ends of the front and rear sides of the vehicle body, and at least one Y-direction second wheel is respectively arranged at the right ends of the front and rear sides of the vehicle body. The first transmission shaft is horizontally arranged in the vehicle body and perpendicular to the Y-axis direction. The middle part of the first transmission shaft is connected to the second output end, and the two ends of the second transmission shaft are respectively connected to all the Y-direction second wheels.

[0015] Furthermore, a first drive sprocket is provided at the first output end of the first reducer, a second drive sprocket is provided at the second output end of the first reducer, a first driven sprocket is provided at the middle of the first transmission shaft, a second driven sprocket is provided at the middle of the second transmission shaft, the first drive sprocket and the first driven sprocket are connected by a chain, and the second drive sprocket and the second driven sprocket are connected by a chain.

[0016] Furthermore, two Y-direction second wheels are respectively provided on the front and rear sides of the right end of the vehicle body, and the rotating shafts of the Y-direction second wheels are located on the inner side of the vehicle body and are provided with a third driven sprocket. The front and rear ends of the second transmission shaft are located on the inner side of the vehicle body and are provided with a third driving sprocket. The third driven sprocket and the third driving sprocket are connected by a chain, and a plurality of tensioning wheels cooperating with the chain are provided on the inner side of the vehicle body.

[0017] Furthermore, the jacking and reversing mechanism includes two groups, and the two groups of jacking and reversing mechanisms are respectively arranged on the inner side of the left end and the inner side of the right end of the vehicle body. The jacking and reversing mechanism includes a second driving mechanism, a lifting mechanism, a resetting mechanism and a lifting plate. A plurality of vertical first lifting rails are evenly arranged on the inner side of the left end or the right end of the vehicle body. The lifting plate is vertically arranged on the first lifting rail slider on the inner side of the left end or the right end of the vehicle body, and the lifting plate is parallel to the left and right sides of the vehicle body. The jacking mechanism and the second driving mechanism are arranged next to the lifting plate, and the second driving mechanism is connected to the jacking mechanism. The second driving mechanism is used to drive the lifting plate to descend along the first lifting rail through the jacking mechanism. The resetting mechanism is arranged in the vehicle body and connected to the lifting plate, and the resetting mechanism is used to push the lifting plate to rise and reset through elastic force.

[0018] Furthermore, the lifting mechanism includes a lifting shaft, a gear and a rack. The lifting shaft is horizontally arranged inside the vehicle body. Gears are arranged at both ends of the lifting shaft. A rack is arranged on each side of the lifting plate. A second lifting guide rail is vertically arranged on the side of the rack close to the lifting plate. A slider matched with the second lifting guide rail is arranged on the lifting plate. The rack and the gear are meshed with each other. The top of the rack is connected to the top cargo plate. Blocks are arranged on both sides of the rack. The bottom of the lifting plate is located below the rack and a baffle matched with the block is arranged.

[0019] The second driving mechanism is connected to the lifting shaft and is used to drive the lifting shaft to rotate to drive the gear to rotate. When the gear drives the rack to move downward, the lifting plate is pushed down along the first lifting guide rail through the stop block and the baffle plate.

[0020] Furthermore, a plurality of third lifting guide rails are vertically arranged in the vehicle body, and a connecting plate is arranged on the slider of the third lifting guide rail, and the top of the connecting plate is connected to the lifting plate;

[0021] When the slider of the second lifting guide rail is located at the top of the second guide rail, the slider of the third lifting guide rail is located at the bottom of the third lifting guide rail.

[0022] Furthermore, the second driving mechanism includes a second motor and a second reducer, the second motor and the second reducer are both arranged in the vehicle body and located next to the jacking shaft, the output end of the second motor is connected to the input end of the second reducer, the output end of the second reducer is provided with a fourth driving sprocket, the middle part of the jacking shaft is provided with a fourth driven sprocket, and the fourth driving sprocket is connected to the fourth driven sprocket by a chain.

[0023] Furthermore, the reset mechanism includes multiple groups of spring shafts, limit blocks and springs. A horizontal plate extending toward the inner side of the vehicle body is arranged on the top of the lifting plate. Multiple spring shafts are evenly and vertically arranged on the lower surface of the inner part of the vehicle body. The top of the spring shaft passes through the horizontal plate. A limit block for limiting the upper limit position of the lifting plate is arranged on the top of the spring shaft. A spring is arranged on the outer side of the spring shaft between the horizontal plate and the base of the spring shaft.

[0024] After adopting the above technical solution, the present invention has the following advantages compared with the prior art:

[0025] The present invention adopts a chain transmission mode, has a simple structure, reduces the precision requirements for processing and assembly, can greatly reduce production costs, reduce maintenance difficulty, and reduce use and maintenance costs;

[0026] The present invention flexibly realizes the lifting and reversing of goods by arranging a lifting and reversing mechanism, and drives the gear to rotate through the second driving mechanism to move the rack downward, so as to push the lifting plate downward, so as to make the wheels of the X-direction moving mechanism descend until they contact the bottom surface, so as to realize the X-direction movement; when the second driving mechanism drives the gear to rotate in the opposite direction to drive the rack to move upward, the lifting plate is pushed up by the spring, so that the X-direction moving mechanism rises to the initial position, and the Y-direction movement can be realized through the Y-direction moving mechanism at this time; when the second driving mechanism continues to drive the gear to rotate in the opposite direction to drive the rack to continue to move upward, the top cargo plate is pushed upward, so as to achieve the purpose of lifting the goods.

[0027] The present invention is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a front view of the present invention;

[0029] Figure 2 It is a right side view of the present invention;

[0030] Figure 3 A top view of the present invention;

[0031] Figure 4It is a three-dimensional structural schematic diagram of the X-axis moving mechanism, the Y-axis moving mechanism and the first driving mechanism of the present invention;

[0032] Figure 5 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0033] Figure 6 for Figure 5 A magnified image of point A;

[0034] Figure 7 This is a schematic diagram of the three-dimensional structure of the present invention from another angle with the vehicle body bottom plate omitted;

[0035] Figure 8 for Figure 7 Enlarged view of point B.

[0036] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0037] 1. Car body; 2. Power supply; 31. Main motor; 32. First reducer; 33. First drive sprocket; 34. Second drive sprocket; 41. First wheel in X direction; 42. Second wheel in X direction; 43. First transmission shaft; 431. First driven sprocket; 44. Connecting shaft; 51. First wheel in Y direction; 52. Second wheel in Y direction; 521. Third driven sprocket; 53. Second transmission shaft; 531. Second driven sprocket; 532. Third drive sprocket; 5 4. Tensioning wheel; 61. Lifting plate; 611. Second lifting guide rail; 612. Baffle; 613. Horizontal plate; 62. First lifting guide rail; 63. Lifting shaft; 631. Fourth driven sprocket; 64. Gear; 65. Rack; 651. Block; 66. Second motor; 67. Second reducer; 671. Fourth driving sprocket; 681. Spring shaft; 682. Limit block; 683. Spring; 7. Third lifting guide rail; 71. Connecting plate. DETAILED DESCRIPTION

[0038] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0039] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "clockwise", "counterclockwise", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0040] like Figure 1 , Figure 2 and Figure 3As shown, a four-way transport vehicle comprises a vehicle body 1, an X-direction moving mechanism, a Y-direction moving mechanism, a first driving mechanism, a lifting and reversing mechanism and a power source 2, wherein the X-direction moving mechanism, the Y-direction moving mechanism, the first driving mechanism, the lifting and reversing mechanism and the power source 2 are all arranged in the vehicle body 1, the first driving mechanism is connected with the X-direction moving mechanism and the Y-direction moving mechanism, and the Y-direction moving mechanism is arranged on the lifting end of the lifting and reversing mechanism;

[0041] The first driving mechanism is used to drive the X-direction moving mechanism and the Y-direction moving mechanism, the lifting and reversing mechanism is used to drive the top cargo plate to rise, and the lifting and reversing mechanism is also used to drive the X-direction moving mechanism away from the ground so that the Y-direction moving mechanism drives the vehicle body 1 to move along the Y-axis direction, or drives the X-direction moving mechanism to move downward to contact the ground so that the X-direction moving mechanism drives the vehicle body 1 to move along the X-axis direction;

[0042] The power supply 2 is electrically connected to the first driving mechanism and the lifting and reversing mechanism, and the power supply 2 is used to provide electrical energy to the first driving mechanism and the lifting and reversing mechanism.

[0043] like Figure 4 As shown, as an embodiment, the first driving mechanism includes a main motor 31 and a first reducer 32, and the main motor 31 and the first reducer 32 are both arranged in the vehicle body 1, and the output end of the main motor 31 is connected to the input end of the first reducer 32, and the first reducer 32 is provided with two mutually perpendicular first output ends and second output ends, the first output end is connected to the input end of the X-direction moving mechanism, and the second output end is connected to the input end of the Y-direction moving mechanism.

[0044] As an embodiment, the X-direction moving mechanism includes an X-direction first wheel 41 and an X-direction second wheel 42, at least one X-direction first wheel 41 is respectively provided at the front end of the left and right sides of the vehicle body 1, and at least one X-direction second wheel 42 is respectively provided at the rear end of the left and right sides of the vehicle body 1, and the X-direction first wheel 41 and the X-direction second wheel 42 on the left and right sides of the vehicle body 1 are respectively connected by a first transmission shaft 43 and a connecting shaft 44, and the first transmission shaft 43 and the connecting shaft 44 are both provided on the lifting end of the jacking reversing mechanism, and the middle part of the first transmission shaft 43 is connected to the first output end;

[0045] The Y-direction moving mechanism includes a Y-direction first wheel 51, a Y-direction second wheel 52 and a second transmission shaft 53. At least one Y-direction first wheel 51 is respectively arranged on the left ends of the front and rear sides of the vehicle body 1, and at least one Y-direction second wheel 52 is respectively arranged on the right ends of the front and rear sides of the vehicle body 1. The first transmission shaft 43 is horizontally arranged in the vehicle body 1 and is perpendicular to the Y-axis direction. The middle part of the first transmission shaft 43 is connected to the second output end, and the two ends of the second transmission shaft 53 are respectively connected to all the Y-direction second wheels 52.

[0046] As an embodiment, a first drive sprocket 33 is provided at the first output end of the first reducer 32, a second drive sprocket 34 is provided at the second output end of the first reducer 32, a first driven sprocket 431 is provided at the middle of the first transmission shaft 43, a second driven sprocket 531 is provided at the middle of the second transmission shaft 53, the first drive sprocket 33 and the first driven sprocket 431 are connected by a chain, and the second drive sprocket 34 and the second driven sprocket 531 are connected by a chain.

[0047] As an embodiment, two Y-direction second wheels 52 are respectively provided on the front and rear sides of the right end of the vehicle body 1, and the rotating shafts of the Y-direction second wheels 52 are located on the inner side of the vehicle body 1 and are provided with a third driven sprocket 521, and the front and rear ends of the second transmission shaft 53 are located on the inner side of the vehicle body 1 and are provided with a third driving sprocket 532, the third driven sprocket 521 and the third driving sprocket 532 are connected by a chain, and a plurality of tensioning wheels 54 cooperating with the chains are provided on the inner side of the vehicle body 1.

[0048] like Figure 5 and Figure 6 As shown, as an embodiment, the lifting and reversing mechanism includes two groups, and the two groups of lifting and reversing mechanisms are respectively arranged on the inner side of the left end and the inner side of the right end of the vehicle body 1. The lifting and reversing mechanism includes a second driving mechanism, a lifting mechanism, a resetting mechanism and a lifting plate 61. A plurality of vertical first lifting guide rails 62 are evenly arranged on the inner side of the left end or the right end of the vehicle body 1. The lifting plate 61 is vertically arranged on the first lifting guide rail 62 slider on the inner side of the left end or the right end of the vehicle body 1, and the lifting plate 61 is parallel to the left and right sides of the vehicle body 1. The lifting mechanism and the second driving mechanism are arranged beside the lifting plate 61. The second driving mechanism is connected to the lifting mechanism. The second driving mechanism is used to drive the lifting plate 61 to descend along the first lifting guide rail 62 through the lifting mechanism. The resetting mechanism is arranged in the vehicle body 1 and connected to the lifting plate 61. The resetting mechanism is used to push the lifting plate to rise and reset by elastic force.

[0049] Specifically, a plurality of vertical strip holes are provided in the middle of the lifting plate 61, and a protrusion cooperating with the strip holes is provided on the inner wall at the left or right end of the vehicle body 1, and a limit block passes through the strip hole. The limit block is used to limit the highest and lowest extreme positions of the lifting plate 61, and a limit block for limiting the highest moving position of the lifting plate 61 is provided on the inner wall at the left or right end of the vehicle body 1 and located above the lifting plate 61.

[0050] like Figure 7 and Figure 8As shown, as an embodiment, the jacking mechanism includes a jacking shaft 63, a gear 64 and a rack 65. The jacking shaft 63 is horizontally arranged inside the vehicle body 1. Gears 64 are arranged at both ends of the jacking shaft 63. A rack 65 is arranged on each side of the lifting plate 61. A second lifting guide rail 611 is vertically arranged on a surface of the rack 65 close to the lifting plate 61. A slider matched with the second lifting guide rail 611 is arranged on the lifting plate 61. The rack 65 and the gear 64 are meshed with each other. The top of the rack 65 is connected to the top cargo plate. Stoppers 651 are arranged on both sides of the rack 65. The bottom of the lifting plate 61 is located below the rack 65 and is provided with a baffle 612 matched with the stopper 651.

[0051] The second driving mechanism is connected to the lifting shaft 63 and is used to drive the lifting shaft 63 to rotate to drive the gear 64 to rotate. When the gear 64 drives the rack 65 to move downward, the lifting plate 61 is pushed down along the first lifting guide rail 62 through the stopper 651 and the baffle 612.

[0052] As an implementation mode, a plurality of third lifting guide rails 7 are vertically arranged in the vehicle body 1, and a connecting plate 71 is arranged on the slider of the third lifting guide rail 7, and the top of the connecting plate 7 is connected to the lifting plate;

[0053] When the slider of the second lifting guide rail 611 is located at the top of the second guide rail, the slider of the third lifting guide rail 7 is located at the bottom of the third lifting guide rail 7 .

[0054] As an embodiment, the second driving mechanism includes a second motor 66 and a second reducer 67, the second motor 66 and the second reducer 67 are both arranged in the vehicle body 1 and located next to the jacking shaft 63, the output end of the second motor 66 is connected to the input end of the second reducer 67, the output end of the second reducer 67 is provided with a fourth driving sprocket 671, the middle part of the jacking shaft 63 is provided with a fourth driven sprocket 631, and the fourth driving sprocket 671 is connected to the fourth driven sprocket 631 through a chain.

[0055] As an embodiment, the reset mechanism includes multiple groups of spring shafts 681, limit blocks 682 and springs 683. The top of the lifting plate 61 is provided with a horizontal plate 613 extending toward the inner side of the vehicle body 1. Multiple spring shafts 681 are evenly and vertically arranged on the lower surface of the inner part of the vehicle body 1. The top of the spring shaft 681 passes through the horizontal plate. The top of the spring shaft 681 is provided with a limit block 682 for limiting the highest limit position of the lifting plate 61. The outer side of the spring shaft 681 is provided with a spring 683 between the horizontal plate 613 and the base of the spring shaft 681.

[0056] Specifically, the reset mechanism includes four groups, and the four groups of reset mechanisms are evenly distributed along the horizontal plate 613. The reset mechanism is used to limit the highest limit position of the lifting plate 61, and is also used to push the horizontal plate 613 and the lifting plate 61 up through the spring 683 after the gear 64 drives the rack 65 to rise.

[0057] Working principle of the present invention:

[0058] The power supply 2 is electrically connected to the main motor 31 and the second motor 66, and the power supply 2 is used to provide electric energy to the main motor 31 and the second motor 66;

[0059] The four-way movement principle of the vehicle body:

[0060] The main motor 31 drives the first driving sprocket 33 and the second driving sprocket 34 to rotate through the first reducer 32. The first driving sprocket 33 drives the first driven sprocket 431 and the first transmission shaft 43 to rotate through the chain. The first transmission shaft 43 drives the X-direction first wheels 41 at both ends to rotate.

[0061] The second driving sprocket 34 drives the second driven sprocket 531 and the second transmission shaft 53 to rotate through a chain, the second transmission shaft 53 drives the third driving sprockets 532 at both ends to rotate, and the third driving sprocket 532 drives all the third driven sprockets 521 and the Y-direction second wheel 52 to rotate through a chain;

[0062] When the two second motors 66 drive the fourth driving sprocket 671 to rotate through the second reducer 67, the fourth driving sprocket 671 drives the fourth driven sprocket 631 and the lifting shaft 63 to rotate through the chain, the lifting shaft 63 drives the gears 64 on both sides to rotate, the gears 64 drive the rack 65 to move upward, and the lifting plate 61 moves upward under the action of the spring 683, so that the first X-direction wheel 41 and the second X-direction wheel 42 are away from the ground. At this time, the vehicle body 1 moves along the Y direction, and the movement along the Y or -Y direction is achieved by the forward and reverse rotation of the main motor 31;

[0063] When the two second motors 66 drive the fourth driving sprocket 671 to rotate in the opposite direction through the second reducer 67, the lifting shaft 63 drives the gears 64 on both sides to rotate in the opposite direction, the gears 64 drive the rack 65 to move downward, and the blocks 651 on both sides of the rack 65 push the baffle 612 to move downward, so that the lifting plates 61 on both sides of the vehicle body 1 move downward, so as to drive the first transmission shaft 43, the connecting shaft 44, the first X-direction wheel 41 and the second X-direction wheel 42 to descend together, until the first X-direction wheel 41 and the second X-direction wheel 42 contact the bottom surface, and slightly lift the vehicle body 1, so that the first Y-direction wheel 51 and the second Y-direction wheel 52 are away from the ground. At this time, the vehicle body 1 moves along the X direction, and the movement along the X or -X direction is achieved by the forward and reverse rotation of the main motor 31.

[0064] Lifting principle:

[0065] When the two second motors 66 drive the fourth driving sprocket 671 to rotate through the second reducer 67, the fourth driving sprocket 671 drives the fourth driven sprocket 631 and the lifting shaft 63 to rotate through the chain, the lifting shaft 63 drives the gears 64 on both sides to rotate, the gear 64 drives the rack 65 to move upward, and the lifting plate 61 moves upward under the action of the spring 683. When the lifting plate 61 moves to the highest position (that is, the upper surface of the lifting plate 61 contacts the limit block 682), the second motor 66 continues to drive the fourth driving sprocket 671 to rotate through the second reducer 67, the rack 65 rises and pushes the lifting plate to rise, and the connecting plate 71 will also drive the slider to rise along the third lifting guide rail 7 driven by the lifting plate.

[0066] The above is an example of the best implementation of the present invention, and the parts not described in detail are common knowledge of ordinary technicians in the field. The protection scope of the present invention shall be based on the content of the claims, and any equivalent transformation based on the technical enlightenment of the present invention is also within the protection scope of the present invention.

Claims

1. A four-way transport vehicle, characterized in that: The vehicle comprises a vehicle body (1), an X-direction moving mechanism, a Y-direction moving mechanism, a first driving mechanism, a lifting and reversing mechanism and a power source (2), wherein the X-direction moving mechanism, the Y-direction moving mechanism, the first driving mechanism, the lifting and reversing mechanism and the power source (2) are all arranged in the vehicle body (1), the first driving mechanism is connected to the X-direction moving mechanism and the Y-direction moving mechanism, and the Y-direction moving mechanism is arranged on the lifting end of the lifting and reversing mechanism; The first driving mechanism is used to drive the X-direction moving mechanism and the Y-direction moving mechanism, the lifting and reversing mechanism is used to drive the top cargo plate to rise, and the lifting and reversing mechanism is also used to drive the X-direction moving mechanism away from the ground so that the Y-direction moving mechanism drives the vehicle body (1) to move along the Y-axis direction, or drives the X-direction moving mechanism to move downward to contact the ground so that the X-direction moving mechanism drives the vehicle body (1) to move along the X-axis direction; The power supply (2) is electrically connected to the first drive mechanism and the lifting and reversing mechanism, and the power supply (2) is used to provide electric energy to the first drive mechanism and the lifting and reversing mechanism; Two groups of lifting and reversing mechanisms are respectively arranged on the inner side of the left end and the inner side of the right end of the vehicle body (1). The lifting and reversing mechanisms include a second driving mechanism, a lifting mechanism, a resetting mechanism and a lifting plate (61). A plurality of vertical first lifting guide rails (62) are evenly arranged on the inner side of the left end or the right end of the vehicle body (1). The lifting plate (61) is vertically arranged on a slider of the first lifting guide rail (62) on the inner side of the left end or the right end of the vehicle body (1), and the lifting plate (61) is parallel to the left and right sides of the vehicle body (1). The lifting mechanism and the second driving mechanism are arranged beside the lifting plate (61). The second driving mechanism is connected to the lifting mechanism. The second driving mechanism is used to drive the lifting plate (61) to descend along the first lifting guide rail (62) through the lifting mechanism. The resetting mechanism is arranged in the vehicle body (1) and connected to the lifting plate (61). The resetting mechanism is used to push the lifting plate to rise and reset by elastic force. The reset mechanism comprises a plurality of groups of spring shafts (681), limit blocks (682) and springs (683); a horizontal plate (613) extending toward the inner side of the vehicle body (1) is arranged at the top of the lifting plate (61); a plurality of spring shafts (681) are evenly and vertically arranged on the lower surface of the inner side of the vehicle body (1); the top of the spring shaft (681) passes through the horizontal plate; a limit block (682) for limiting the highest limit position of the lifting plate (61) is arranged at the top of the spring shaft (681); a spring (683) is arranged on the outer side of the spring shaft (681) between the horizontal plate (613) and the base of the spring shaft (681); the lifting mechanism comprises a lifting shaft (63), a gear (64) and a rack (65); The lifting shaft (63) is horizontally arranged inside the vehicle body (1), and gears (64) are arranged at both ends of the lifting shaft (63). A rack (65) is arranged on each side of the lifting plate (61). A second lifting guide rail (611) is vertically arranged on the side of the rack (65) close to the lifting plate (61). A slider that cooperates with the second lifting guide rail (611) is arranged on the lifting plate (61). The rack (65) and the gear (64) are meshed with each other. The top of the rack (65) is connected to the top cargo plate. Stop blocks (651) are arranged on both sides of the rack (65). A stop plate (612) that cooperates with the stop block (651) is arranged at the bottom of the lifting plate (61) below the rack (65); The second driving mechanism is connected to the lifting shaft (63) and is used to drive the lifting shaft (63) to rotate so as to drive the gear (64) to rotate. When the gear (64) drives the rack (65) to move downward, the lifting plate (61) is pushed down along the first lifting guide rail (62) through the stop block (651) and the baffle plate (612).

2. The four-way transport vehicle according to claim 1, characterized in that: The first driving mechanism comprises a main motor (31) and a first reducer (32), wherein the main motor (31) and the first reducer (32) are both arranged in the vehicle body (1), the output end of the main motor (31) is connected to the input end of the first reducer (32), the first reducer (32) is provided with two mutually perpendicular first output ends and second output ends, the first output end is connected to the input end of the X-direction moving mechanism, and the second output end is connected to the input end of the Y-direction moving mechanism.

3. The four-way transport vehicle according to claim 2, characterized in that The X-direction moving mechanism comprises an X-direction first wheel (41) and an X-direction second wheel (42), at least one X-direction first wheel (41) is respectively arranged at the front ends of the left and right sides of the vehicle body (1), and at least one X-direction second wheel (42) is respectively arranged at the rear ends of the left and right sides of the vehicle body (1), the X-direction first wheel (41) and the X-direction second wheel (42) on the left and right sides of the vehicle body (1) are respectively connected through a first transmission shaft (43) and a connecting shaft (44), the first transmission shaft (43) and the connecting shaft (44) are both arranged on the lifting end of the lifting and reversing mechanism, and the middle part of the first transmission shaft (43) is connected to the first output end; The Y-direction moving mechanism comprises a Y-direction first wheel (51), a Y-direction second wheel (52) and a second transmission shaft (53); at least one Y-direction first wheel (51) is respectively arranged at the left ends of both front and rear sides of the vehicle body (1); at least one Y-direction second wheel (52) is respectively arranged at the right ends of both front and rear sides of the vehicle body (1); the first transmission shaft (43) is horizontally arranged in the vehicle body (1) and parallel to the Y-axis direction; the middle part of the second transmission shaft (53) is connected to the second output end; and both ends of the second transmission shaft (53) are respectively connected to all the Y-direction second wheels (52).

4. The four-way transport vehicle according to claim 3, characterized in that A first output end of the first reducer (32) is provided with a first driving sprocket (33), a second output end of the first reducer (32) is provided with a second driving sprocket (34), a middle portion of the first transmission shaft (43) is provided with a first driven sprocket (431), a middle portion of the second transmission shaft (53) is provided with a second driven sprocket (531), the first driving sprocket (33) and the first driven sprocket (431) are connected by a chain, and the second driving sprocket (34) and the second driven sprocket (531) are connected by a chain.

5. The four-way transport vehicle according to claim 3, characterized in that Two Y-direction second wheels (52) are respectively arranged on the front and rear sides of the right end of the vehicle body (1); the rotating shafts of the Y-direction second wheels (52) are located on the inner side of the vehicle body (1) and are each provided with a third driven sprocket (521); the front and rear ends of the second transmission shaft (53) are located on the inner side of the vehicle body (1) and are provided with a third driving sprocket (532); the third driven sprocket (521) and the third driving sprocket (532) are connected by a chain, and a plurality of tensioning wheels (54) cooperating with the chains are arranged on the inner side of the vehicle body (1).

6. The four-way transport vehicle according to claim 1, characterized in that A plurality of third lifting guide rails (7) are vertically arranged in the vehicle body (1), a connecting plate (71) is arranged on the slider of the third lifting guide rail (7), and the top of the connecting plate (7) is connected to the lifting plate; When the slider of the second lifting guide rail (611) is located at the top of the second guide rail, the slider of the third lifting guide rail (7) is located at the bottom of the third lifting guide rail (7).

7. The four-way transport vehicle according to claim 1, characterized in that The second driving mechanism comprises a second motor (66) and a second reducer (67). The second motor (66) and the second reducer (67) are both arranged in the vehicle body (1) and located beside the lifting shaft (63). The output end of the second motor (66) is connected to the input end of the second reducer (67). The output end of the second reducer (67) is provided with a fourth driving sprocket (671). A fourth driven sprocket (631) is provided in the middle of the lifting shaft (63). The fourth driving sprocket (671) is connected to the fourth driven sprocket (631) through a chain.

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