Forklift for logistics storage and logistics storage system

Abstract

The utility model discloses a forklift for logistics storage and a logistics storage system. The forklift for logistics storage comprises a movable base, the movable base is provided with a pallet fork support and a lifting mechanism used for driving the pallet fork support to ascend and descend, and the pallet fork support is provided with a pallet fork assembly and a first driving mechanism used for driving the pallet fork assembly to forwards stretch out of / retract into the pallet fork support. The pallet fork assembly comprises two pallet forks arranged side by side, supporting wheels are arranged on the front sides of the bottoms of the pallet forks, and second driving mechanisms used for driving the supporting wheels to ascend and descend are arranged on the pallet forks. When cargoes on a goods shelf are carried, the supporting wheels are in contact with the goods shelf to support the pallet fork, so that rollover of the forklift caused by forward movement of the gravity center is avoided, stress of the stand column is reduced, bending deformation of the stand column is avoided, a balancing weight is not needed, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of logistics and warehousing, in particular to a forklift for logistics and warehousing and a logistics and warehousing system. Background Art

[0002] Smart warehousing is a key component of the logistics process. Its application ensures the speed and accuracy of data input at every stage of warehouse management, ensuring that companies have timely and accurate access to real inventory data and can maintain and control inventory appropriately. Scientific coding also facilitates the management of inventory batches and expiration dates.

[0003] At present, intelligent logistics and warehousing forklifts are widely used in the field of warehousing and logistics for the transportation and handling of goods. Existing intelligent warehousing is to set up multiple shelves in the warehouse, and the goods are placed on the shelves through brackets. The logistics and warehousing forklift uses two forks to lift the brackets with the goods, drive the brackets to move to the destination, and use the lifting mechanism to drive the forks to lift and lower the brackets with the goods to place them in storage locations at different heights on the shelves. However, existing logistics and warehousing forklifts have the following defects: when the logistics and warehousing forklift uses the forks to carry heavier goods, the forward extension of the forks carrying the heavier goods will cause the center of gravity to shift forward, making the logistics and warehousing forklift at risk of overturning. Existing logistics and warehousing forklifts generally have a counterweight block at the rear of the vehicle body to solve the problem of the forward center of gravity. However, the forward extension of the forks carrying heavier goods can easily cause the columns to bend and deform, affecting the smooth handling of the goods. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a forklift for logistics warehousing and a logistics warehousing system. When transporting goods on the shelves, the support wheels contact the shelves to support the forks, thereby preventing the forklift from tipping over due to the forward shift of the center of gravity, reducing the force on the columns, avoiding bending deformation of the columns, and eliminating the need for counterweights, thereby reducing costs.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions:

[0006] The utility model discloses a forklift for logistics and warehousing, comprising a mobile base, a fork bracket and a lifting mechanism for driving the fork bracket to rise and fall on the mobile base, a fork assembly and a first driving mechanism for driving the fork assembly to extend forward / retract the fork bracket on the fork bracket, the fork assembly comprising two forks arranged side by side, a support wheel being provided on the front side of the bottom of the fork, and a second driving mechanism for driving the support wheel to rise and fall on the fork.

[0007] In this solution, a logistics and warehousing forklift moves to the corresponding shelf via a mobile base, and the fork bracket is raised and lowered by a lifting mechanism. When the fork assembly places goods on the shelf or removes goods from the shelf, the support wheels contact the shelf to support the fork, allowing the shelf to provide support force, preventing the logistics and warehousing forklift from tipping over due to the forward shift of the center of gravity, reducing the force on the column, avoiding bending and deformation of the column, and ensuring smooth handling of goods. This solution supports the fork by contacting the support wheels with the shelf, eliminating the need for a counterweight, reducing costs. Since it is the shelf that provides the support force to ensure the stability of the logistics and warehousing forklift instead of the counterweight, the logistics and warehousing forklift can carry goods at higher positions, so that the height of the shelf can be made higher, increasing the storage capacity per unit area of the shelf, thereby improving storage density.

[0008] Preferably, the cargo fork includes a longitudinal fork arm and a transverse fork arm, the bottom end of the longitudinal fork arm is connected to the rear end of the transverse fork arm, a first groove is provided on the bottom surface of the transverse fork arm, the support wheel is arranged in the first groove, and the second driving mechanism is used to drive the support wheel to extend downward / retract into the first groove.

[0009] Preferably, the first groove is consistent with the direction of the transverse fork arm, and the rear side surface of the longitudinal fork arm is provided with a second groove consistent with the direction of the longitudinal fork arm, the first groove is connected to the second groove, and the second driving mechanism includes a first swing arm, a connecting rod, a second swing arm and a hydraulic cylinder, the first swing arm is arranged on the front side of the first groove, the connecting rod is arranged in the first groove, the second swing arm and the hydraulic cylinder are both arranged in the second groove, the hydraulic cylinder is located above the second swing arm, the first swing arm is rotatably connected to the transverse fork arm, the second swing arm is rotatably connected to the longitudinal fork arm, the support wheel is rotatably connected to the front end of the first swing arm, the rear end of the first swing arm is rotatably connected to the front end of the connecting rod, the rear end of the connecting rod is rotatably connected to the front end of the second swing arm, and the rear end of the second swing arm is rotatably connected to the telescopic end of the hydraulic cylinder.

[0010] When the support wheel needs to be extended downward from the first groove, the telescopic end of the hydraulic cylinder extends downward, driving the second swing arm to rotate, and the front end of the second swing arm drives the connecting rod to move forward. The forward movement of the connecting rod drives the first swing arm to rotate, and the front end of the first swing arm drives the support wheel to move downward and extend out of the first groove; when the support wheel needs to be retracted into the first groove, the telescopic end of the hydraulic cylinder retracts upward, driving the second swing arm to rotate in the opposite direction, and the front end of the second swing arm drives the connecting rod to move backward. The backward movement of the connecting rod drives the first swing arm to rotate in the opposite direction, and the front end of the first swing arm drives the support wheel to move upward and retract into the first groove.

[0011] Preferably, the fork bracket includes a connecting plate and two supporting vertical plates arranged symmetrically on the left and right, the supporting vertical plates are arranged along the front-to-back direction, and the two ends of the connecting plate are respectively connected to the rear ends of the two supporting vertical plates. The first driving mechanism includes a base, a driving module and two moving components arranged symmetrically on the left and right, the moving components are arranged on the supporting vertical plates on the corresponding side, the moving components include guide rails arranged along the front-to-back direction and a moving block movable along the guide rails, the two ends of the base are respectively connected to the two moving blocks, the rear end of the fork is connected to the base, and the driving module is used to drive the moving block to move forward and backward along the guide rails.

[0012] Preferably, the moving assembly further includes a synchronous belt, a synchronous pulley and two tensioning pulleys, the synchronous belt is arranged along the front and rear directions, the front and rear ends of the synchronous belt are fixedly connected to the front and rear ends of the supporting vertical plate respectively, the synchronous pulleys and the tensioning pulleys are both arranged on the outside of the moving block, the tensioning pulley is rotatably connected to the moving block, the synchronous belt passes around the synchronous pulley, and the two tensioning pulleys are symmetrically arranged on the left and right sides of the synchronous pulley, the tensioning pulley is used to tension the synchronous belt, the driving module includes a driving shaft, a driving gear, a driven gear and a driving motor, the two ends of the driving shaft respectively pass through the moving block on the corresponding side and are coaxially connected to the synchronous pulley on the corresponding side, the driving shaft is rotatably connected to the moving block, the driven gear is sleeved on the driving shaft, the driven gear is meshed with the driving gear, and the driving motor is used to drive the driving gear to rotate.

[0013] The driving motor drives the driving gear to rotate, and the driving gear drives the driving shaft to rotate through the driven gear. The driving shaft drives the synchronous pulleys on the left and right sides to rotate synchronously. Since the synchronous belt is tensioned by the tensioning pulley, the synchronous pulley moves along the synchronous belt, driving the moving block to move along the guide rail, thereby driving the fork assembly to move forward and backward through the base.

[0014] Preferably, the lifting mechanism includes a fixed gantry, a lifting gantry and a jacking cylinder, the fixed gantry includes columns symmetrically arranged on the top of the movable base, the lifting gantry includes support columns symmetrically arranged on the left and right and a first crossbeam connecting the top ends of the two support columns, the support columns are located on the inner sides of the columns on the corresponding side and can move up and down along the columns on the corresponding side, the inner sides of the support columns are provided with guide grooves arranged longitudinally, the guide grooves are provided with rolling wheel groups that can roll along the guide grooves, the rolling wheel groups are rotatably connected to the fork bracket, the lifting gantry is provided with an elevator for driving the fork bracket to rise and fall along the guide grooves, and the jacking cylinder is used to drive the lifting gantry to rise and fall along the columns.

[0015] The lifting gantry can be raised and lowered along the fixed gantry, thereby increasing the handling height of the logistics and warehousing forklift, enabling the logistics and warehousing forklift to carry goods at higher positions.

[0016] Preferably, the bottom ends of the two support columns are connected by a second cross beam, and a rolling assembly is provided at the lower part of the support column, and the rolling assembly includes two rolling structures symmetrically arranged up and down, and the rolling structure includes a first rolling module and a second rolling module, the first rolling module includes two first rollers, and the two first rollers are in rolling contact with the front and rear sides of the column respectively, and the first rollers are rotatably connected to the support column, and the second rolling module includes two second rollers, and the second rollers are rotatably connected to the outer side of the column, and the second rollers are rotatably connected with a connecting plate, and the connecting plate is connected to the support column, and the two connecting plates are respectively located on the front and rear sides of the column.

[0017] Preferably, the mobile base includes an E-shaped base, a moving mechanism is provided at the bottom of the base, the base includes a connecting block and three mutually parallel support blocks, the support block is arranged in front of the connecting block, the support block and the connecting block are perpendicular to each other, the support blocks are arranged along the front and rear directions, and the space between adjacent support blocks is used for the fork to pass through.

[0018] The utility model provides a logistics warehousing system, including a shelf, a bracket and the above-mentioned logistics warehousing forklift. The shelf includes a frame body, a plurality of cargo plates are provided on the frame body, a plurality of storage spaces are provided on the cargo plates, the bracket is used for placing goods, and a through groove that passes through the bracket is symmetrically provided on the bottom of the bracket.

[0019] Preferably, when the cross fork arm of the logistics warehousing forklift is lowered to the lowest position and the support wheel is retracted into the first groove, the distance between the upper surface of the cross fork arm and the ground is less than the height of the through groove; when the support wheel of the logistics warehousing forklift extends downward from the first groove to the lowest position and the cross fork arm is lowered until the support wheel contacts the ground, the distance between the upper surface of the cross fork arm and the ground is greater than the height of the through groove.

[0020] The beneficial effects of the present invention are as follows: (1) When transporting goods on a shelf, the forks are supported by the support wheels in contact with the shelf, thereby preventing the forklift from tipping over due to the forward shift of the center of gravity, reducing the force on the column, preventing the column from bending and deformation, ensuring smooth transportation of goods, and eliminating the need for counterweights, thereby reducing costs. (2) The forks are supported by the support wheels in contact with the shelf. Since it is the shelf that provides the support force to ensure the stability of the logistics and warehousing forklift instead of the counterweight, the logistics and warehousing forklift can transport goods at higher positions, thereby making the shelf height higher, increasing the storage capacity per unit area of the shelf, and thus improving the storage density. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of a forklift used in logistics and warehousing;

[0022] Figure 2 This is a schematic diagram of the lifting and lowering of the fork assembly of a forklift used in logistics and warehousing;

[0023] Figure 3 It is a structural diagram of the fork bracket;

[0024] Figure 4 is a structural schematic diagram of the first driving mechanism;

[0025] Figure 5 It is a structural diagram of the fork;

[0026] Figure 6 is a structural schematic diagram of the second driving mechanism;

[0027] Figure 7 This is a schematic diagram of the fork support wheel dropped to the lowest position;

[0028] Figure 8 This is a diagram of the state of a forklift used in logistics warehousing when the forks loaded with goods are not extended forward;

[0029] Figure 9 yes Figure 8 Rear view;

[0030] Figure 10 This is a schematic diagram of the state where the forks loaded with goods on a forklift used in logistics warehousing are extended forward above the storage position;

[0031] Figure 11 yes Figure 10 rear view.

[0032] In the figure: 1. Mobile base, 2. Fork bracket, 3. Fork assembly, 4. First driving mechanism, 5. Fork, 6. Support wheel, 7. Second driving mechanism, 8. Longitudinal fork arm, 9. Transverse fork arm, 10. First groove, 11. Second groove, 12. First swing arm, 13. Connecting rod, 14. Second swing arm, 15. Hydraulic cylinder, 16. Connecting plate, 17. Support vertical plate, 18. Base, 19. Guide rail, 20. Moving block, 21. Synchronous belt, 22. Synchronous pulley, 23. Tensioner, 24. Drive shaft, 25. Main Driving gear, 26. Driven gear, 27. Driving motor, 28. Fixed gantry, 29. Lifting gantry, 30. Lifting cylinder, 31. Column, 32. Support column, 33. First crossbeam, 34. Guide groove, 35. Rolling wheel group, 36. Elevator, 37. Second crossbeam, 38. First roller, 39. Second roller, 40. Connecting plate, 41. Connecting block, 42. Support block, 43. Shelf, 44. Bracket, 45. Cargo plate, 46. Through slot, 47. Cargo, 48. Support bar, 49. Guide wheel group. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be further specifically described below with reference to embodiments and in conjunction with the accompanying drawings.

[0034] Embodiment: A forklift for logistics warehousing in this embodiment, such as Figures 1 to 11 As shown, it includes a mobile base 1, on which is provided a fork bracket 2 and a lifting mechanism for driving the fork bracket 2 to rise and fall, on which is provided a fork assembly 3 and a first driving mechanism 4 for driving the fork assembly 3 to extend forward / retract the fork bracket 2, the fork assembly 3 includes two forks 5 arranged side by side, a support wheel 6 is provided on the front side of the bottom of the fork 5, and a second driving mechanism 7 is provided on the fork 5 for driving the support wheel 6 to rise and fall.

[0035] The fork 5 includes a longitudinal fork arm 8 and a transverse fork arm 9. The bottom end of the longitudinal fork arm 8 is connected to the rear end of the transverse fork arm 9. A first groove 10 is provided on the bottom surface of the transverse fork arm 8. The support wheel 6 is arranged in the first groove 10. The second driving mechanism 7 is used to drive the support wheel 6 to extend downward / retract into the first groove 10.

[0036] The first groove 10 is consistent with the direction of the transverse fork arm 9, and the rear side of the longitudinal fork arm 8 is provided with a second groove 11 consistent with the direction of the longitudinal fork arm 8. The first groove 10 is connected to the second groove 11. The second driving mechanism 7 includes a first swing arm 12, a connecting rod 13, a second swing arm 14 and a hydraulic cylinder 15. The first swing arm 12 is arranged on the front side of the first groove 10, and the connecting rod 13 is arranged in the first groove 10. The second swing arm 14 and the hydraulic cylinder 15 are both arranged in the second groove 11. The hydraulic cylinder 15 is located above the second swing arm 14. The first swing arm 12 is rotatably connected to the transverse fork arm 9, and the second swing arm 14 is rotatably connected to the longitudinal fork arm 8. The support wheel 6 is rotatably connected to the front end of the first swing arm 12, the rear end of the first swing arm 12 is rotatably connected to the front end of the connecting rod 13, the rear end of the connecting rod 13 is rotatably connected to the front end of the second swing arm 14, and the rear end of the second swing arm 14 is rotatably connected to the telescopic end of the hydraulic cylinder 15.

[0037] In this solution, when the support wheel needs to be extended downwardly out of the first groove, the telescopic end of the hydraulic cylinder extends downwardly, driving the second swing arm to rotate, the front end of the second swing arm drives the connecting rod to move forward, the forward movement of the connecting rod drives the first swing arm to rotate, and the front end of the first swing arm drives the support wheel to move downwardly out of the first groove. The state of the support wheel when it moves downwardly to the lowest position is as follows: Figure 7 As shown; when the support wheel needs to be retracted to the first groove, the telescopic end of the hydraulic cylinder retracts upward, driving the second swing arm to rotate in the opposite direction, the front end of the second swing arm drives the connecting rod to move backward, the backward movement of the connecting rod drives the first swing arm to rotate in the opposite direction, and the front end of the first swing arm drives the support wheel to move upward and retract to the first groove. The state when the support wheel moves upward to the highest position is shown as follows Figure 6 shown.

[0038] When the forklift for logistics warehousing receives the picking instruction, the forklift for logistics warehousing moves to the shelf position where the target bracket with the goods to be picked is located, the lifting mechanism drives the fork assembly to rise to a position slightly higher than the storage position where the target bracket is located, the first driving mechanism drives the fork assembly to extend forward until the fork is inserted into the through slot at the bottom of the target bracket, the lifting mechanism drives the fork assembly to rise, and at the same time the second driving mechanism drives the support wheel to descend. When the fork assembly lifts the target bracket with the goods to be picked, the support wheel contacts and supports the storage position, the first driving mechanism drives the fork assembly to retract backward, and transports the target bracket to the fork bracket. Then the second driving mechanism drives the support wheel to rise, and the picking operation is completed;

[0039] When the forklift receives the order to place the goods, the fork assembly of the forklift lifts the target bracket with the goods to be placed, and moves to the shelf position where the target storage location for the goods to be placed is located. Figure 8 、 Figure 9 As shown in FIG, the lifting mechanism drives the fork assembly to rise to a position slightly higher than the target storage position. At this time, the support wheel is located in the first groove. Then, the first driving mechanism drives the fork assembly to extend forward until the support wheel at the bottom of the fork is located above the target storage position. Figure 10 、 Figure 11 As shown, the second drive mechanism drives the support wheel to descend to the lowest position, and the lifting mechanism drives the fork assembly to descend until the support wheel contacts and supports the target storage position. At this time, the target bracket is not in contact with the target storage position, and the first drive mechanism drives the fork assembly to continue to extend forward until the target bracket is completely located in the target storage position. The lifting mechanism drives the fork assembly to descend, and at the same time, the second drive mechanism drives the support wheel to rise. When the fork assembly places the target bracket on the target storage position, the support wheel is not in contact with the target storage position, and the first drive mechanism drives the fork assembly to retract backward to complete the cargo release operation.

[0040] The forklift used in logistics and warehousing moves to the corresponding shelf via a mobile base, and drives the fork bracket to rise and fall through the lifting mechanism. When the fork assembly places goods on the shelf or removes goods from the shelf, the support wheels contact the shelf to support the fork, so that the shelf can provide support force, preventing the logistics and warehousing forklift from tipping over due to the forward shift of the center of gravity, reducing the force on the column, avoiding bending and deformation of the column, and ensuring smooth handling of goods. This solution supports the fork by contacting the support wheels with the shelf, eliminating the need for a counterweight and reducing costs. Since it is the shelf that provides the support force to ensure the stability of the logistics and warehousing forklift instead of the counterweight, the logistics and warehousing forklift can carry goods at higher positions, so that the height of the shelf can be made higher, increasing the storage capacity per unit area of the shelf, thereby improving storage density.

[0041] The fork bracket 2 includes a connecting plate 16 and two supporting vertical plates 17 symmetrically arranged on the left and right. The supporting vertical plates 17 are arranged along the front and rear directions. The two ends of the connecting plate 16 are respectively connected to the rear ends of the two supporting vertical plates 17. The first driving mechanism 4 includes a base 18, a driving module and two moving components symmetrically arranged on the left and right. The moving components are arranged on the supporting vertical plates 17 on the corresponding side. The moving components include a guide rail 19 arranged along the front and rear directions and a moving block 20 that can move along the guide rail 19. The two ends of the base 18 are respectively connected to the two moving blocks 20. The rear end of the fork 5 is connected to the base 18. The driving module is used to drive the moving block 20 to move forward and backward along the guide rail 19.

[0042] The moving assembly also includes a synchronous belt 21, a synchronous pulley 22 and two tensioning pulleys 23. The synchronous belt 21 is arranged along the front and rear directions, and the front and rear ends of the synchronous belt 21 are fixedly connected to the front and rear ends of the supporting vertical plate 17 respectively. The synchronous pulley 22 and the tensioning pulley 23 are both arranged on the outside of the moving block 20, and the tensioning pulley 23 is rotatably connected to the moving block 2, and the synchronous belt 21 passes around the synchronous pulley 22. The two tensioning pulleys 23 are symmetrically arranged on the left and right sides of the synchronous pulley 22. The tensioning pulley 23 is used to tension the synchronous belt 21. The driving module includes a driving shaft 24, a driving gear 25, a driven gear 26, and a driving motor 27. The two ends of the driving shaft 24 pass through the moving block 20 on the corresponding side and are coaxially connected to the synchronous pulley 22 on the corresponding side. The driving shaft 24 is rotatably connected to the moving block 20, and the driven gear 26 is sleeved on the driving shaft 24. The driven gear 26 meshes with the driving gear 25, and the driving motor 27 is used to drive the driving gear 25 to rotate.

[0043] The driving motor drives the driving gear to rotate, and the driving gear drives the driving shaft to rotate through the driven gear. The driving shaft drives the synchronous pulleys on the left and right sides to rotate synchronously. Since the synchronous belt is tensioned by the tensioning pulley, the synchronous pulley moves along the synchronous belt, driving the moving block to move along the guide rail, thereby driving the fork assembly to move forward and backward through the base.

[0044] The drive motor 27 is mounted on the rear side of the base 18, and the driving gear 25 is coaxially connected to the output shaft of the drive motor 27. A plurality of support bars 48 are provided on the rear side of the base 18, and the drive shaft 24 passes through the support bars 48 and is rotatably connected to the support bars 48. The moving assembly includes two guide rails 19 arranged along a front-to-back direction. The two guide rails 19 are arranged side by side up and down. Three guide wheel groups 49 are arranged side by side up and down on the outer side of the moving block 2. The guide wheel groups 49 include two guide wheels arranged side by side front and back. The top guide wheel group 49 contacts the top surface of the upper guide rail 19, the middle guide wheel group 49 contacts the top surface of the lower guide rail 19, and the bottom guide wheel group 49 contacts the bottom surface of the lower guide rail 19.

[0045] The lifting mechanism includes a fixed gantry 28, a lifting gantry 29, and a jacking cylinder 30. The fixed gantry 28 includes columns 31 symmetrically arranged on the top of the mobile base 1. The lifting gantry 29 includes support columns 32 symmetrically arranged on the left and right, and a first crossbeam 33 connecting the tops of the two support columns 32. The support columns 32 are located inside the corresponding column 31 and can move up and down along the corresponding column 31. The support columns 32 are provided with guide grooves 34 arranged longitudinally on the inside of the support columns 32. The guide grooves 34 are provided with rolling wheels 35 that can roll along the guide grooves 34. The rolling wheels 35 are rotatably connected to the fork support 2. The lifting gantry 29 is provided with a lift 36 for driving the fork support 2 to rise and fall along the guide grooves 34. The lift 36 is a chain lift. The jacking cylinder 30 is used to drive the lifting gantry 29 to rise and fall along the columns 31. There are two jacking cylinders 30, which are arranged vertically. The telescopic ends of the tops of the jacking cylinders 30 are connected to the first crossbeam 33.

[0046] The bottom ends of the two support columns 32 are connected by a second crossbeam 37. A rolling assembly is provided at the lower part of the support column 32. The rolling assembly includes two rolling structures symmetrically arranged up and down. The rolling structure includes a first rolling module and a second rolling module. The first rolling module includes two first rollers 38. The two first rollers 38 are in rolling contact with the front and rear sides of the column 31 respectively. The first rollers 38 are rotatably connected to the support column 32. The second rolling module includes two second rollers 39. The second rollers 39 are rollingly connected to the outer side of the column 31. The second rollers 39 are rotatably connected to a connecting piece 40. The connecting piece 40 is fixedly connected to the support column 32. The two connecting pieces 40 are respectively located on the front and rear sides of the column 31.

[0047] The lifting gantry can be raised and lowered along the fixed gantry, thereby increasing the handling height of the logistics and warehousing forklift, enabling the logistics and warehousing forklift to carry goods at higher positions.

[0048] The mobile base 1 includes an E-shaped base, a moving mechanism is provided at the bottom of the base, the base includes a connecting block 41 and three mutually parallel support blocks 42, the support block 42 is arranged in front of the connecting block 41, the support block 42 and the connecting block 41 are perpendicular to each other, the support blocks 42 are arranged along the front and rear directions, and the space between adjacent support blocks 42 is used for the fork 5 to pass through.

[0049] The space between adjacent support blocks is the fork channel. When the lifting mechanism drives the fork bracket to the lowest position, the two forks are respectively located in the two fork channels, which can carry goods on the ground.

[0050] An intelligent control module is provided on the base, which is used to control the operation of the forklift used in logistics warehousing and to communicate wirelessly with the logistics control center.

[0051] A logistics warehousing system of this embodiment, such as Figures 8 to 11As shown, it includes a shelf 43, a bracket 44 and the above-mentioned logistics warehousing forklift. The shelf 43 includes a frame body, a plurality of cargo plates 45 are provided on the frame body, and a plurality of storage spaces are provided on the cargo plates 45. The bracket 44 is used to place cargo 47. The bottom of the bracket 44 is symmetrically provided with a through groove 46 that passes through the bracket 44. The through groove 46 is arranged along the front and rear direction, and the through groove 46 is used for the horizontal fork arm 9 to extend into.

[0052] When the cross fork arm of the logistics warehousing forklift is lowered to the lowest position and the support wheel is retracted into the first groove, the distance between the upper surface of the cross fork arm and the ground is less than the height of the through groove; when the support wheel of the logistics warehousing forklift extends downward from the first groove to the lowest position and the cross fork arm is lowered until the support wheel contacts the ground, the distance between the upper surface of the cross fork arm and the ground is greater than the height of the through groove.

[0053] like Figure 8 As shown, in this embodiment, each cargo plate 45 is provided with two cargo storage spaces, each of which is used to place a rack loaded with cargo. Figure 8 As shown in the figure, the fork assembly of the logistics warehousing forklift first rises to a position slightly higher than the target storage position. At this time, Figure 9 As shown, the support wheel is located in the first groove, and then the first driving mechanism drives the fork assembly to extend forward until the support wheel at the bottom of the fork is located above the target storage position, as shown in FIG. Figure 10 、 Figure 11 As shown, the second drive mechanism drives the support wheel to descend to the lowest position, and the lifting mechanism drives the fork assembly to descend until the support wheel contacts the storage position. At this time, the target bracket is not in contact with the target storage position, and the support wheel plays a supporting role. The first drive mechanism drives the fork assembly to continue to extend forward until the target bracket is completely located in the target storage position. The lifting mechanism drives the fork assembly to descend, and at the same time, the second drive mechanism drives the support wheel to rise. When the fork assembly places the target bracket on the target storage position, the support wheel is not in contact with the target storage position, and the first drive mechanism drives the fork assembly to retract backward to complete the cargo release operation.

Claims

1. A forklift for logistics warehousing, characterized in that: The invention comprises a mobile base (1), wherein the mobile base (1) is provided with a fork support (2) and a lifting mechanism for driving the fork support (2) to rise and fall, the fork support (2) is provided with a fork assembly (3) and a first driving mechanism (4) for driving the fork assembly (3) to extend forward / retract the fork support (2), the fork assembly (3) comprises two forks (5) arranged side by side, the front side of the bottom of the fork (5) is provided with a supporting wheel (6), the fork (5) is provided with a second driving mechanism (7) for driving the supporting wheel (6) to rise and fall, the fork (5) comprises a longitudinal fork arm (8) and a transverse fork arm (9), the bottom end of the longitudinal fork arm (8) is connected to the rear end of the transverse fork arm (9), the bottom surface of the transverse fork arm (9) is provided with a first groove (10), the supporting wheel (6) is arranged in the first groove (10), and the second driving mechanism (7) is used to drive the supporting wheel (6) to extend downward / retract into the first groove (10).

2. A logistics warehousing forklift according to claim 1, characterized in that: The first groove (10) is aligned with the transverse fork arm (9), and a second groove (11) aligned with the longitudinal fork arm (8) is provided on the rear side of the longitudinal fork arm (8). The first groove (10) is connected to the second groove (11). The second driving mechanism (7) comprises a first swing arm (12), a connecting rod (13), a second swing arm (14) and a hydraulic cylinder (15). The first swing arm (12) is arranged on the front side of the first groove (10), the connecting rod (13) is arranged in the first groove (10), and the second swing arm (14) and the hydraulic cylinder (15) are connected to each other. ) are arranged in the second groove (11), the hydraulic cylinder (15) is located above the second swing arm (14), the first swing arm (12) is rotatably connected to the transverse fork arm (9), the second swing arm (14) is rotatably connected to the longitudinal fork arm (8), the support wheel (6) is rotatably connected to the front end of the first swing arm (12), the rear end of the first swing arm (12) is rotatably connected to the front end of the connecting rod (13), the rear end of the connecting rod (13) is rotatably connected to the front end of the second swing arm (14), and the rear end of the second swing arm (14) is rotatably connected to the telescopic end of the hydraulic cylinder (15).

3. A logistics warehousing forklift according to claim 1, characterized in that: The fork support (2) includes a connecting plate (16) and two supporting vertical plates (17) symmetrically arranged on the left and right sides, the supporting vertical plates (17) are arranged along a front-back direction, and the two ends of the connecting plate (16) are respectively connected to the rear ends of the two supporting vertical plates (17). The first driving mechanism (4) includes a base (18), a driving module and two moving components symmetrically arranged on the left and right sides, the moving components are arranged on the supporting vertical plates (17) on the corresponding side, the moving components include a guide rail (19) arranged along a front-back direction and a moving block (20) movable along the guide rail (19), the two ends of the base (18) are respectively connected to the two moving blocks (20), the rear end of the fork (5) is connected to the base (18), and the driving module is used to drive the moving block (20) to move forward and backward along the guide rail (19).

4. A logistics warehousing forklift according to claim 3, characterized in that: The moving assembly further comprises a synchronous belt (21), a synchronous pulley (22) and two tensioning pulleys (23), wherein the synchronous belt (21) is arranged along a front-back direction, and the front and rear ends of the synchronous belt (21) are respectively fixedly connected to the front and rear ends of the supporting vertical plate (17), the synchronous pulley (22) and the tensioning pulley (23) are both arranged outside the moving block (20), and the tensioning pulley (23) is rotationally connected to the moving block (20), the synchronous belt (21) passes around the synchronous pulley (22), and the two tensioning pulleys (23) are symmetrically arranged on the left and right sides of the synchronous pulley (22), and the tensioning pulley (23) is symmetrically arranged on the left and right sides of the synchronous pulley (22). 3) is used to tension the synchronous belt (21), the driving module includes a driving shaft (24), a driving gear (25), a driven gear (26), and a driving motor (27), the two ends of the driving shaft (24) respectively pass through the moving block (20) on the corresponding side and are coaxially connected to the synchronous pulley (22) on the corresponding side, the driving shaft (24) is rotationally connected to the moving block (20), the driven gear (26) is sleeved on the driving shaft (24), the driven gear (26) is meshed with the driving gear (25), and the driving motor (27) is used to drive the driving gear (25) to rotate.

5. A logistics warehousing forklift according to claim 1, characterized in that: The lifting mechanism comprises a fixed gantry (28), a lifting gantry (29) and a lifting cylinder (30), wherein the fixed gantry (28) comprises a column (31) symmetrically arranged on the top of the movable base (1), the lifting gantry (29) comprises a supporting column (32) symmetrically arranged on the top of the two supporting columns (32), and a first crossbeam (33) connecting the top ends of the two supporting columns (32), the supporting column (32) being located inside the corresponding side column (31) and being movable up and down along the corresponding side column (31), the supporting column (32) being provided with a guide groove (34) arranged in the longitudinal direction on the inside of the supporting column (32), the guide groove (34) being provided with a rolling wheel group (35) capable of rolling along the guide groove (34), the rolling wheel group (35) being rotatably connected to the fork support (2), the lifting gantry (29) being provided with a lifter (36) for driving the fork support (2) to move up and down along the guide groove (34), and the lifting cylinder (30) being used to drive the lifting gantry (29) to move up and down along the column (31).

6. A logistics warehousing forklift according to claim 5, characterized in that: The bottom ends of the two support columns (32) are connected by a second crossbeam (37), and a rolling assembly is provided at the lower part of the support column (32), and the rolling assembly includes two rolling structures symmetrically arranged up and down, and the rolling structure includes a first rolling module and a second rolling module, the first rolling module includes two first rollers (38), and the two first rollers (38) are in rolling contact with the front and rear sides of the column (31) respectively, and the first rollers (38) are rotationally connected to the support column (32), and the second rolling module includes two second rollers (39), and the second rollers (39) are rolling connected to the outer side of the column (31), and the second rollers (39) are rotationally connected to a connecting piece (40), and the connecting piece (40) is connected to the support column (32), and the two connecting pieces (40) are respectively located at the front and rear sides of the column (31).

7. A logistics warehousing forklift according to claim 1, characterized in that: The movable base (1) comprises an E-shaped base, a movable mechanism is provided at the bottom of the base, the base comprises a connecting block (41) and three mutually parallel supporting blocks (42), the supporting blocks (42) are arranged in front of the connecting block (41), the supporting blocks (42) and the connecting block (41) are perpendicular to each other, the supporting blocks (42) are arranged along a front-to-back direction, and the space between adjacent supporting blocks (42) is used for a fork (5) to pass through.

8. A logistics warehousing system, characterized in that: The invention comprises a shelf (43), a bracket (44) and a forklift for logistics warehousing according to any one of claims 1 to 7, wherein the shelf (43) comprises a frame body, a plurality of cargo plates (45) are provided on the frame body, a plurality of cargo storage spaces are provided on the cargo plates (45), the bracket (44) is used for placing cargo (47), and a through slot (46) penetrating the bracket (44) is symmetrically provided at the bottom of the bracket (44).

9. A logistics warehousing system according to claim 8, characterized in that: When the transverse fork arm (9) of the logistics warehousing forklift is lowered to the lowest position and the support wheel (6) is retracted into the first groove (10), the distance between the upper surface of the transverse fork arm (9) and the ground is less than the height of the through groove (46); when the support wheel (6) of the logistics warehousing forklift extends downward from the first groove (10) to reach the lowest position and the transverse fork arm (9) is lowered until the support wheel (6) contacts the ground, the distance between the upper surface of the transverse fork arm (9) and the ground is greater than the height of the through groove (46).

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