An anti-collision unmanned cargo transport vehicle for logistics warehouses

Abstract

The present invention belongs to the field of logistics warehousing technology, and is particularly an anti-collision unmanned cargo transport vehicle for logistics warehouses, comprising a vehicle floor, and an outer frame fixedly connected to a fixed block on the upper surface of the vehicle floor, the inner side of the outer frame is slidably connected to a support plate, and a telescopic drive mechanism for driving the support plate to rise and fall is installed on the upper surface of the vehicle floor, the top of the outer frame is fixedly connected to a frame, and a reciprocating drive mechanism is installed on the frame, and the reciprocating drive mechanism includes two positioning seats fixedly connected to the frame, and a ball screw rotatably connected between the two positioning seats. The present invention can realize automatic unloading and loading of goods by arranging a liftable support plate on the cargo transport vehicle and installing a reciprocating drive mechanism on the frame on the top of the vehicle, with high efficiency. At the same time, an emergency brake mechanism is installed on one side of the vehicle, which solves the problems of low efficiency and low safety of the current storage cargo transport vehicles.

Description

Technical Field

[0001] The present invention relates to the technical field of logistics warehousing, and in particular to an anti-collision unmanned cargo transport vehicle for use in logistics warehouses. Background Art

[0002] Logistics warehousing refers to the use of self-built or leased warehouses and sites to store, keep, load and unload, and distribute goods. The traditional definition of warehousing is given from the perspective of material reserves. Modern "warehousing" is not a "warehouse" or "warehouse management" in the traditional sense, but warehousing in the context of economic globalization and supply chain integration. It is warehousing in the modern logistics system. Unmanned logistics is unmanned transportation throughout the entire process. The package starts from the unmanned warehouse, then is transported, and then transported to the corresponding place. Unmanned carts will be used in the logistics warehouse to facilitate the placement of goods on the shelves of the logistics warehouse. The unmanned carts for logistics warehousing are a new technology with high work efficiency, can save labor costs, and have great use.

[0003] However, at present, unmanned warehouse vehicles have the following shortcomings when in use:

[0004] Firstly, the telescopic support of the goods cannot be achieved, which makes it inconvenient to take and put the goods. At the same time, the cargo trolley lacks an automatic clamping and transferring mechanism, and cannot automatically unload and load goods, resulting in low efficiency. Secondly, the safety of the device is not high, and there is a lack of an emergency braking mechanism, which is prone to collision. There are some shortcomings, so improvements are needed. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the shortcomings of the prior art, the present invention provides an anti-collision unmanned cargo transport cart for use in logistics warehouses. By arranging a liftable support plate on the cargo transport cart and installing a reciprocating drive mechanism on the frame on the top of the cart, automatic unloading and loading of goods can be achieved with high efficiency. At the same time, an emergency brake mechanism is installed on one side of the cart, which solves the problems of low efficiency and low safety of current warehouse cargo transport carts.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0009] An anti-collision unmanned cargo transport vehicle for logistics warehouses comprises a vehicle floor, and an outer frame fixedly connected to a fixed block on the upper surface of the vehicle floor, a support plate is slidably connected to the inner side of the outer frame, and a telescopic driving mechanism for driving the support plate to rise and fall is installed on the upper surface of the vehicle floor, a frame is fixedly connected to the top of the outer frame, a reciprocating driving mechanism is installed on the frame, the reciprocating driving mechanism comprises two positioning seats fixedly connected to the frame, and a ball screw rotatably connected between the two positioning seats, and a driving block is threadedly connected to the ball screw, and a clamping arm is installed at the bottom of the driving block;

[0010] A distance sensor is installed on the positioning frame on one side of the vehicle floor, and a controller is installed on the outer frame. Wheels are arranged at the four corners of the bottom of the vehicle floor. An emergency brake mechanism is fixedly connected to the vehicle floor at the wheel. The emergency brake mechanism includes a pneumatic telescopic rod fixedly connected to a cylinder seat on one side of the vehicle floor, and a brake pad arranged at the end of the pneumatic telescopic rod. The output end of the distance sensor is electrically connected to the input end of the controller, and the output end of the controller is electrically connected to the input end of the pneumatic telescopic rod.

[0011] Furthermore, a driving shaft is arranged between the two wheels, and a passive wheel is fixedly connected to the driving shaft, a first motor is installed on one side of the vehicle floor, and a driving wheel meshing with the passive wheel is arranged on one side of the passive wheel on the output shaft at the bottom of the first motor.

[0012] Furthermore, a rechargeable lithium battery connected in series with the first motor is installed on one side of the vehicle floor, and the output end of the controller is electrically connected to the input end of the first motor.

[0013] Furthermore, the telescopic drive mechanism includes a track plate fixedly connected to the upper surface of the vehicle bottom plate, and a slider slidably connected to the track cavity in the upper part of the track plate, and a hydraulic cylinder is installed on one side of the vehicle bottom plate located on the track plate, and a telescopic shaft for driving the slider to move is arranged on the output shaft of the hydraulic cylinder, and a support arm is rotatably connected between the upper surface of the slider and the lower surface of the support plate, and a rotating seat is arranged at the connection between the two ends of the support arm and the slider and the support plate.

[0014] Furthermore, a second motor for driving the ball screw to rotate is installed on one of the positioning seats.

[0015] Furthermore, a guide rod is fixedly connected between the two positioning seats, and a guide hole adapted to the guide rod is opened at a position of the driving block corresponding to the guide rod.

[0016] Furthermore, the clamping arm includes a base plate fixedly connected to the lower surface of the driving block, and a dynamic clamping block and a static clamping block arranged on the lower surface of the base plate, and the lower surface of the base plate is fixedly connected to a mounting seat, on which a pneumatic cylinder for driving the dynamic clamping block to move is installed.

[0017] Furthermore, two symmetrically distributed limiting rails are fixedly connected to the lower surface of the base plate, and a sliding seat slidably connected to the limiting rails is arranged at the top of the movable clamping block corresponding to the limiting rails.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the present invention provides an anti-collision unmanned cargo transport vehicle for use in logistics warehouses, which has the following beneficial effects:

[0020] 1. The present invention, by arranging an outer frame above the vehicle floor, arranging a liftable support plate inside the outer frame, and installing a telescopic drive mechanism between the support plate and the vehicle floor, can realize the lifting and lowering of the support plate, thereby facilitating the storage and unloading of goods. At the same time, the present invention installs a reciprocating drive mechanism on the frame, and a clamping arm is installed at the bottom of the reciprocating drive mechanism, which can realize the telescopic movement of the clamping arm. The clamping arm can extend out of the inner side of the trolley to clamp or unload the goods on the shelf, thereby achieving the purpose of automatic unloading and receiving. Therefore, the automatic performance of the device is high, the taking and placing of goods is convenient, and the use effect is good.

[0021] 2. The present invention drives the unmanned vehicle to move by means of a motor, which is simple to drive and easy to control. At the same time, the device installs an emergency brake mechanism on the vehicle floor and installs a distance sensor on a positioning frame on one side of the vehicle floor. When there is an obstacle in front, the motor can be controlled to stop working in the first time, and the emergency brake mechanism works at the same time, and the cylinder extends to realize emergency braking of the wheel to avoid impact, thereby increasing the safety of the device and achieving good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front perspective view of the present invention;

[0023] Figure 2 A bottom-up stereogram of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the telescopic drive mechanism in the present invention;

[0025] Figure 4 It is a structural schematic diagram of the reciprocating drive mechanism in the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the clamping arm in the present invention;

[0027] Figure 6 is a side perspective view of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the emergency brake mechanism in the present invention.

[0029] In the figure: 1, vehicle bottom plate; 2, telescopic drive mechanism; 201, track plate; 202, slider; 203, hydraulic cylinder; 204, telescopic shaft; 205, track cavity; 206, support arm; 207, rotating seat; 3, wheel; 4, driving wheel; 5, first motor; 6, rechargeable lithium battery; 7, reciprocating drive mechanism; 701, positioning seat; 702, second motor; 703, ball screw; 704, driving block; 705, guide rod; 706, clamping arm; 706 1. Base plate; 7062. Sliding seat; 7063. Limiting track; 7064. Mounting seat; 7065. Pneumatic cylinder; 7066. Dynamic clamping block; 7067. Static clamping block; 8. Support plate; 9. Fixed block; 10. Outer frame; 11. Frame; 12. Driving shaft; 13. Passive wheel; 14. Positioning frame; 15. Emergency brake mechanism; 1501. Cylinder seat; 1502. Pneumatic telescopic rod; 1503. Brake pad; 16. Distance sensor; 17. Controller. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Example

[0032] like Figure 1 , Figure 4 , Figure 6 and Figure 7As shown, an anti-collision unmanned cargo transport vehicle for logistics warehouses proposed in one embodiment of the present invention includes a vehicle bottom plate 1, and an outer frame 10 fixedly connected to a fixed block 9 on the upper surface of the vehicle bottom plate 1, a support plate 8 is slidably connected to the inner side of the outer frame 10, and a telescopic driving mechanism 2 for driving the support plate 8 to rise and fall is installed on the upper surface of the vehicle bottom plate 1, a frame 11 is fixedly connected to the top of the outer frame 10, a reciprocating driving mechanism 7 is installed on the frame 11, the reciprocating driving mechanism 7 includes two positioning seats 701 fixedly connected to the frame 11, and a ball screw 703 rotatably connected between the two positioning seats 701, and a driving block 704 is threadedly connected to the ball screw 703, and a clamping arm 706 is installed at the bottom of the driving block 704. In summary, the outer frame 10 is used to protect goods and prevent the goods from falling. By arranging a liftable support plate 8 on the inner side of the outer frame 10, the support plate 8 is used to support the goods and can drive the goods. Lifting and lowering, thereby facilitating the storage and unloading requirements of goods, by installing a telescopic driving mechanism 2 between the upper surface of the vehicle bottom plate 1 and the lower surface of the supporting plate 8, the supporting plate 8 can be driven to automatically lift and lower, and the goods can be automatically extended and retracted. At the same time, a frame 11 is arranged on the top of the outer frame 10, and a reciprocating driving mechanism 7 is installed on the frame 11, which can realize the lateral movement of the goods, and the goods can be moved out or placed from the shelf to achieve the purpose of automatic picking up and releasing of goods. By arranging a ball screw 703 between the two positioning seats 701, and threading a driving block 704 on the ball screw 703, this method can realize the movement of the driving block 704, and has good stability. A clamping arm 706 is installed at the bottom of the driving block 704, and the clamping arm 706 can realize the clamping effect of the goods. This method can realize the clamping and fixing of the goods, and realize the automatic picking and placing of the goods, with good automation effect and high efficiency, can reduce labor costs, and has good use.

[0033] A distance sensor 16 is installed on the positioning frame 14 on one side of the vehicle floor 1, and a controller 17 is installed on the outer frame 10. Wheels 3 are arranged at the four corners of the bottom of the vehicle floor 1. The vehicle floor 1 is fixedly connected to an emergency brake mechanism 15 at the wheel 3. The emergency brake mechanism 15 includes a pneumatic telescopic rod 1502 fixedly connected to a cylinder seat 1501 on one side of the vehicle floor 1, and a brake pad 1503 arranged at the end of the pneumatic telescopic rod 1502. The output end of the distance sensor 16 is electrically connected to the input end of the controller 17, and the output end of the controller 17 is electrically connected to the input end of the pneumatic telescopic rod 1502. In summary, the model of the distance sensor 16 is DYP-A02YY-V1. 0, the model of the controller 17 is S7-400, and its usage and working principle are all known prior art and are not elaborated herein. By installing an emergency brake mechanism 15 on the side of the wheel 3 on the vehicle floor 1, emergency braking of the wheel 3 can be achieved. When there is an obstacle in front, the car can be automatically braked to avoid collision, thereby achieving safety protection of the car. A pneumatic telescopic rod 1502 and a brake pad 1503 at the end of the pneumatic telescopic rod 1502 are provided in the emergency brake mechanism 15. The braking effect is good and the cost is low, which is convenient for popularization and use. When there is an obstacle in front of the vehicle floor 1, the controller 17 will automatically control the emergency brake mechanism 15 to work, thereby achieving safety protection of the car.

[0034] like Figure 1 and Figure 2 As shown, in some embodiments, a driving shaft 12 is provided between two wheels 3, and a passive wheel 13 is fixedly connected to the driving shaft 12, a first motor 5 is installed on one side of the vehicle bottom plate 1, and a driving wheel 4 meshing with the passive wheel 13 is provided on the output shaft at the bottom of the first motor 5 and located on one side of the passive wheel 13; by providing the driving wheel 4 on the output shaft at the bottom of the first motor 5 and providing the passive wheel 13 on the driving shaft 12, the driving effect of the wheel 3 can be realized, and the movement of the trolley can be achieved in this way, which has good flexibility and is easy to operate and control.

[0035] like Figure 1 and Figure 6 As shown, in some embodiments, a rechargeable lithium battery 6 connected in series with the first motor 5 is installed on one side of the vehicle floor 1, and the output end of the controller 17 is electrically connected to the input end of the first motor 5; the rechargeable lithium battery 6 can be cyclically charged and has good environmental performance. By electrically connecting the output end of the controller 17 to the input end of the first motor 5, when there is an obstacle in front, the first motor 5 can stop working in the first time, which has good safety.

[0036] like Figure 3As shown, in some embodiments, the telescopic drive mechanism 2 includes a track plate 201 fixedly connected to the upper surface of the vehicle bottom plate 1, and a slider 202 slidably connected to the track cavity 205 on the upper part of the track plate 201, and a hydraulic cylinder 203 is installed on one side of the vehicle bottom plate 1 located on the track plate 201, and a telescopic shaft 204 for driving the slider 202 to move is arranged on the output shaft of the hydraulic cylinder 203, and a support arm 206 is rotatably connected between the upper surface of the slider 202 and the lower surface of the support plate 8, and the two ends of the support arm 206 and the slider A rotating seat 207 is provided at the connection between 202 and the support plate 8; by setting the track plate 201, and sliding the slider 202 on the track cavity 205 on the upper part of the track plate 201, when the slider 202 moves, the support arm 206 rotates to form a supporting effect on the support plate 8, and then drives the support plate 8 to rise and fall, and drives the telescopic shaft 204 to extend and retract through the hydraulic cylinder 203, and then drives the slider 202 to move. This method has stable supporting force, can realize effective support of the support plate 8, has good stability performance, and has good use.

[0037] like Figure 4 As shown, in some embodiments, a second motor 702 for driving the ball screw 703 to rotate is installed on one of the positioning seats 701 to achieve rotational drive of the ball screw 703.

[0038] like Figure 4 As shown, in some embodiments, a guide rod 705 is fixedly connected between the two positioning seats 701, and a guide hole adapted to the guide rod 705 is opened at the driving block 704 corresponding to the guide rod 705; this method can play a role in limiting and guiding the movement of the driving block 704, ensuring that the driving block 704 slides stably.

[0039] like Figure 5 As shown, in some embodiments, the clamping arm 706 includes a base plate 7061 fixedly connected to the lower surface of the driving block 704, and a dynamic clamping block 7066 and a static clamping block 7067 arranged on the lower surface of the base plate 7061, and the lower surface of the base plate 7061 is fixedly connected to a mounting seat 7064, and a pneumatic cylinder 7065 for driving the dynamic clamping block 7066 to move is installed on the mounting seat 7064; by arranging the dynamic clamping block 7066 and the static clamping block 7067, the dynamic clamping block 7066 moves under the action of the pneumatic cylinder 7065, and cooperates with the static clamping block 7067 to clamp the goods. This method has good stability and is convenient for clamping and fixing large pieces of goods.

[0040] like Figure 5As shown, in some embodiments, two symmetrically distributed limiting rails 7063 are fixedly connected to the lower surface of the substrate 7061, and a sliding seat 7062 slidably connected to the limiting rail 7063 is provided at the top of the movable clamping block 7066 corresponding to the limiting rail 7063. This method can play a limiting and guiding role when the movable clamping block 7066 moves, avoid shaking, and ensure the stability of the movable clamping block 7066 during telescopic movement.

[0041] The working principle and use steps of the present invention are as follows: when it is necessary to pick up and place goods, the first motor 5 is stopped to fix the wheels 3, and the telescopic drive mechanism 2 is driven to work, so that the support plate 8 moves up. At this time, the hydraulic cylinder 203 drives the slider 202 to move through the telescopic shaft 204, so that the support arm 206 is turned over under the action of the rotating seat 207, and the vertical length of the support arm 206 is extended, thereby supporting the support plate 8, and the support plate 8 slides on the inner side of the outer frame 10. When unloading, the second motor 702 in the reciprocating drive mechanism 7 works, the ball screw 703 rotates, and the driving block 704 moves along the guide rod 705 to move the clamping arm 706 to the specified position. The pneumatic cylinder 7065 drives the dynamic clamping block 7066 to move, and cooperates with the static clamping block 7067 to clamp the goods. After clamping, the second motor 702 works again to extend the clamping arm 706 to the position of the shelf, and then The goods are placed on the shelf to realize automatic unloading of the goods. When the unloading of one layer of goods is completed, the telescopic drive mechanism 2 continues to work to lift the height of the support plate 8 so that the goods can be unloaded in turn. When loading the goods, the process is the opposite. The goods on the shelf can be moved to the support plate 8 through the clamping arm 706. It is easy to use and can automatically realize the unloading and loading of the goods. When the trolley needs to move, the first motor 5 is driven to work, driving the active wheel 4 to rotate. At this time, the passive wheel 13 rotates, driving the drive shaft 12 to rotate, and the wheel 3 is moved. When there is an obstacle in front, the distance sensor 16 can detect the obstacle signal, and the controller 17 receives the signal to control the emergency brake mechanism 15 to work, and the first motor 5 stops working in an emergency, the wheel 3 stops working, and the pneumatic telescopic rod 1502 drives the brake pad 1503 to extend to realize the emergency braking of the wheel 3, so as to avoid the collision of the trolley.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An anti-collision unmanned cargo transport vehicle for use in a logistics warehouse, comprising a vehicle bottom plate (1), and an outer frame (10) fixedly connected to a fixed block (9) on the upper surface of the vehicle bottom plate (1), characterized in that: The inner side of the outer frame (10) is slidably connected to a support plate (8), and a telescopic drive mechanism (2) for driving the support plate (8) to rise and fall is installed on the upper surface of the vehicle bottom plate (1), the top of the outer frame (10) is fixedly connected to a frame (11), and a reciprocating drive mechanism (7) is installed on the frame (11), and the reciprocating drive mechanism (7) comprises two positioning seats (701) fixedly connected to the frame (11), and a ball screw (703) rotatably connected between the two positioning seats (701), and a drive block (704) is threadedly connected to the ball screw (703), and a clamping arm (706) is installed at the bottom of the drive block (704); A distance sensor (16) is installed on the positioning frame (14) on one side of the vehicle floor (1), and a controller (17) is installed on the outer frame (10). Wheels (3) are arranged at the four corners of the bottom of the vehicle floor (1). An emergency brake mechanism (15) is fixedly connected to the vehicle floor (1) at the wheel (3). The emergency brake mechanism (15) comprises a pneumatic telescopic rod (1502) fixedly connected to a cylinder seat (1501) on one side of the vehicle floor (1), and a brake pad (1503) arranged at the end of the pneumatic telescopic rod (1502). The output end of the distance sensor (16) is electrically connected to the input end of the controller (17), and the output end of the controller (17) is electrically connected to the input end of the pneumatic telescopic rod (1502). A driving shaft (12) is provided between the two wheels (3), and a passive wheel (13) is fixedly connected to the driving shaft (12); a first motor (5) is installed on one side of the vehicle floor (1), and a driving wheel (4) meshing with the passive wheel (13) is provided on the output shaft at the bottom of the first motor (5) and located on one side of the passive wheel (13); A rechargeable lithium battery (6) connected in series with the first motor (5) is installed on one side of the vehicle floor (1), and an output end of the controller (17) is electrically connected to an input end of the first motor (5); The telescopic drive mechanism (2) comprises a track plate (201) fixedly connected to the upper surface of the vehicle bottom plate (1), and a slider (202) slidably connected to a track cavity (205) at the upper portion of the track plate (201), and a hydraulic cylinder (203) is installed on one side of the vehicle bottom plate (1) located on the track plate (201), a telescopic shaft (204) for driving the slider (202) to move is arranged on the output shaft of the hydraulic cylinder (203), a support arm (206) is rotatably connected between the upper surface of the slider (202) and the lower surface of the support plate (8), and a rotating seat (207) is arranged at both ends of the support arm (206) and at the connection between the slider (202) and the support plate (8); A second motor (702) for driving the ball screw (703) to rotate is mounted on one of the positioning seats (701); The clamping arm (706) comprises a base plate (7061) fixedly connected to the lower surface of the driving block (704), and a dynamic clamping block (7066) and a static clamping block (7067) arranged on the lower surface of the base plate (7061); a mounting seat (7064) is fixedly connected to the lower surface of the base plate (7061), and a pneumatic cylinder (7065) for driving the dynamic clamping block (7066) to move is installed on the mounting seat (7064); The clamping arm (706) can extend out of the inner side of the trolley to place goods on the shelf or move goods on the shelf to the support plate (8).

2. The anti-collision unmanned cargo transport vehicle for use in a logistics warehouse according to claim 1, characterized in that: A guide rod (705) is fixedly connected between the two positioning seats (701), and a guide hole adapted to the guide rod (705) is provided on the driving block (704) at a position corresponding to the guide rod (705).

3. The anti-collision unmanned cargo transport vehicle for logistics warehouses according to claim 1 is characterized in that: The lower surface of the base plate (7061) is fixedly connected to two symmetrically distributed limiting rails (7063), and a sliding seat (7062) slidably connected to the limiting rails (7063) is provided at the top of the movable clamping block (7066) corresponding to the limiting rails (7063).

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