Large-tonnage heavy-load anti-shaking integrated heavy-duty forklift

Abstract

The application belongs to the technical field of fork trucks, in particular to a large-tonnage heavy-load anti-shaking integrated heavy-duty fork truck, which comprises a fork truck body, a fork assembly is arranged at the front end of the fork truck body, a supporting rod is rotatably arranged in a mounting frame, chain wheels are symmetrically arranged on the supporting rod, chains are sleeved on the chain wheels, a load-bearing frame is arranged in the frame, a driving mechanism for driving the chain wheels to move is arranged on the side surface of the frame, a supporting mechanism for supporting supporting blocks is arranged in the frame, a counterweight assembly is arranged in the load-bearing frame, a limiting mechanism is arranged in the supporting block, and a positioning mechanism for positioning the counterweight assembly is arranged in a strip-shaped frame. When heavy goods are transferred, the large-tonnage heavy-load anti-shaking integrated heavy-duty fork truck can prevent the rear end of the fork truck body from tilting, the position of the load-bearing frame is adjusted by sliding the supporting block, the load-bearing frame moves to drive the counterweight assembly to move synchronously, thereby achieving the effect of flexibly adjusting the position of the counterweight, and the position of the counterweight can be flexibly changed according to the operation needs.

Description

Technical Field

[0001] This invention belongs to the field of forklift technology, specifically a large-tonnage, heavy-duty, anti-sway integrated heavy-duty forklift. Background Technology

[0002] The heavy-duty anti-sway integrated heavy-duty forklift relies on an integrated high-rigidity frame and hydraulic buffer structure to reduce the swaying and shaking of goods under heavy lifting, turning and bumpy conditions. It is mainly used for loading and unloading, short-distance transfer, high-level stacking and positioning of heavy-duty items such as steel coils, castings, large molds, wind power components, heavy machine tools and other heavy items weighing tens of tons in the factory area, reducing the risk of falling and tilting, and ensuring safe and stable heavy-duty operation.

[0003] A Chinese patent, CN115108501A, discloses a telescopic forklift with an improved cab equipped with a roof defined by a transparent or translucent protective cover. The cover comprises one or more materials and is designed to withstand the fall of hazardous materials to protect the operator's safety within the cab. The cover includes multiple layers made of polymeric materials, including at least one polycarbonate or polyurethane layer.

[0004] Most existing heavy-duty forklifts are equipped with fixed counterweights, which have relatively fixed installation positions. It is difficult to flexibly adjust the counterweight position according to the load size, center of gravity shift of the goods, and actual working conditions. At the same time, it is not easy to change the effective weight of the counterweight. The adaptability to working conditions is limited. When facing complex working scenarios such as eccentric loads and frequent switching between light and heavy loads, it is often necessary to manually disassemble and replace counterweights of different specifications to meet the working requirements. The disassembly and assembly operations are cumbersome, laborious, and have low switching efficiency.

[0005] Therefore, the present invention provides a large-tonnage, heavy-duty, anti-sway integrated heavy-duty forklift. Summary of the Invention

[0006] To overcome the shortcomings of existing technologies and solve the problem of inconvenient adjustment of the position of the weight distribution point, this invention proposes a large-tonnage, heavy-duty, anti-sway integrated heavy-duty forklift.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: A heavy-duty, anti-sway integrated heavy-duty forklift, comprising a forklift body, a fork assembly at the front end of the forklift body, wheels on the forklift body, a receiving groove fixedly disposed within the forklift body, a frame connected to the bottom of the receiving groove, and the forklift body extending from the bottom end of the frame, a square hole at the bottom of the frame, mounting brackets symmetrically disposed within the frame, support rods rotatably disposed within the mounting brackets, and sprockets symmetrically disposed on the support rods. The sprocket is fitted with a chain, and the corresponding sprockets are connected by chain drive. A load-bearing frame is provided inside the frame, and support blocks are symmetrically arranged on the load-bearing frame. A drive mechanism for driving the sprocket is provided on the side of the frame. A support mechanism for supporting the support blocks is provided inside the frame. A strip frame is symmetrically arranged on the load-bearing frame, and L-shaped brackets are arranged in an array on the strip frame. A counterweight assembly is provided inside the load-bearing frame. A limit mechanism is provided inside the support block, and a positioning mechanism for positioning the counterweight assembly is provided inside the strip frame.

[0008] By adopting the above scheme, the forklift body is assisted in moving by the traveling wheels. After the forklift body moves to the predetermined position, the goods can be transferred by controlling the movement of the fork assembly, thus achieving the purpose of goods transfer. When transferring heavier goods by the fork assembly, to prevent the rear of the forklift body from tilting, the drive mechanism can be controlled to drive the sprocket to rotate via the support rod. When the sprocket rotates, it causes the chain to move, and the chain movement drives the support block to move. A wheel is set at the bottom of the support block, and the wheel is located in the slide rail to assist the support block in sliding. When the support block slides, the position of the load-bearing frame can be adjusted. The movement of the load-bearing frame will drive the counterweight assembly to move, thereby achieving the purpose of flexible adjustment of the counterweight point. The counterweight position can be flexibly adjusted according to actual needs. It can compensate for eccentric loads according to the actual load and center of gravity of different goods, and effectively counteract the overturning moment. The positioning mechanism can position the corresponding counterweight block in the bar frame. Through the movement of the limiting mechanism, the lower counterweight block is no longer supported and limited. The counterweight block passes through The square hole allows the counterweight to fall out of the forklift body. The stack height of the fallen counterweight will not exceed the chassis of the forklift body. After the counterweight is removed, the limiting mechanism resets, and the positioning mechanism moves the positioned counterweight downwards. The limiting mechanism can then limit the unremoved counterweight again, ensuring that the counterweight is stacked within the load-bearing frame. If further weight reduction is needed, the forklift body can move to the next location and repeat the above steps to remove and reduce the counterweight. Alternatively, the position of the load-bearing frame can be adjusted by moving the drive mechanism. After the load-bearing frame moves to an empty position, the removal steps can be repeated to remove the counterweight. This reduces parts costs and disassembly / removal time, and can also reasonably reduce the overall load of the machine, achieving automatic weight reduction without the need for manual removal of the counterweight. It can quickly adapt to different load conditions, eliminating manual operation of counterweight removal, handling, and transportation, reducing labor intensity, avoiding safety hazards such as damage to parts and injury to personnel during disassembly and assembly, shortening the working condition switching time, reducing wear on the frame and tires, achieving energy saving and consumption reduction, and improving the overall utilization rate of the equipment.

[0009] Preferably, the forklift body is provided with a driver's cab, and the drive mechanism includes a mounting box, a drive motor and a reducer. The mounting box is fixed to the side of the frame and is located inside the forklift body. The drive motor and the reducer are both fixed inside the mounting box, and the output end of the drive motor is fixedly connected to the input end of the reducer, and the output end of the reducer is fixedly connected to the end of the support rod.

[0010] By adopting the above scheme, the movement of the drive motor can be controlled by the movement of the reducer to drive the movement of the support rod, and the movement of the support rod can cause the sprocket to rotate.

[0011] Preferably, the support mechanism includes a strip plate with a slide rail, a limiting groove at the bottom of the strip plate, and the chain passes through the limiting groove and is fixedly connected to the support block.

[0012] By adopting the above scheme, when adjusting the position of the support block, the support block can be moved smoothly by the wheel body, and the limiting groove is used to lock and limit the chain, so that the chain moves smoothly.

[0013] Preferably, the limiting mechanism includes a storage slot, a baffle, a guide shaft, and an electric push rod. The storage slot is disposed inside the support block and is connected to the inside of the load-bearing frame. The baffle passes through the storage slot, the guide shaft passes through the baffle, and the other end of the guide shaft is fixedly connected to the inner wall of the storage slot. The electric push rod is fixed inside the storage slot, and the telescopic end of the electric push rod is fixedly connected to the side of the baffle.

[0014] By adopting the above scheme, the baffle can be guided and limited by the guide shaft. After the baffle moves into the load-bearing frame, it can support and limit the counterweight. Conversely, by adjusting the position of the baffle by the electric push rod, the baffle is reset and enters the storage slot, and the counterweight is no longer supported and limited. The counterweight then moves down and moves out of the forklift body through the square hole.

[0015] Preferably, a load-bearing rod is inserted inside the support block, and the end of the load-bearing rod is fixedly connected to the mounting frame.

[0016] By adopting the above scheme, the support block can be moved smoothly by supporting and guiding the support block with the load-bearing rod.

[0017] Preferably, the counterweight assembly includes counterweight blocks, insertion holes, pins, and slots. The counterweight block array is arranged inside the load-bearing frame, and the strip frame and L-bracket cooperate to limit the stacked counterweight blocks. Telescopic insertion holes are symmetrically arranged on the counterweight blocks. The pins are fixed to the bottom of the counterweight blocks, and the slots are symmetrically arranged on the counterweight blocks.

[0018] By adopting the above scheme, the counterweight blocks can be stacked and limited by the cooperation of the insertion holes and pins, and the load-bearing frame supports and limits the stacked counterweight blocks by the cooperation of the baffle.

[0019] Preferably, the side of the strip frame is provided with a through groove, and the inside of the strip frame is hollow. The positioning mechanism includes a square box, a locking block, a sliding block, an adjusting screw, and a servo motor. The square box is slidably disposed inside the strip frame. The locking block passes through the inside of the square box. The sliding block is disposed inside the square box and is fixedly connected to the top of the locking block. The adjusting screw is rotatably disposed inside the square box, and the outer surface of the adjusting screw is threadedly connected to the inside of the sliding block. The servo motor is fixed inside the square box, and the output end of the servo motor is fixedly connected to one end of the adjusting screw. A limit shaft is fixedly disposed inside the square box, and the limit shaft passes through the sliding block.

[0020] By adopting the above scheme, after the square box moves to the positioning point, its position is positioned. Then, the servo motor is controlled to drive the adjusting screw to rotate. The adjusting screw can adjust the position of the sliding block. The limit shaft guides and limits the sliding block. The movement of the sliding block can adjust the position of the locking block, so that one end of the locking block is inserted into the corresponding locking slot, thereby supporting and limiting the counterweight block. After adjusting the position of the baffle, the lower fixed support counterweight block can be disassembled and reduced. After the lower counterweight block is disassembled, by adjusting the square box to move down, the supporting counterweight block can be moved down, so that the baffle enters the load-bearing frame, which can support and limit the upper counterweight block.

[0021] Preferably, the square box is symmetrically provided with adjusting blocks, and a guide rod is inserted through the adjusting block. The end of the guide rod is fixedly connected to the inner wall of the strip frame. A set of adjusting blocks is threadedly connected with a threaded rod. A stepper motor is fixedly installed inside the strip frame, and the output end of the stepper motor is fixedly connected to one end of the threaded rod.

[0022] By adopting the above scheme, the stepper motor will drive the threaded rod to rotate, and the rotation of the threaded rod can adjust the position of the corresponding adjustment block. The movement of the adjustment block will drive the locking block to move. The guide rod can guide the adjustment block to move smoothly. After the locking block moves to the predetermined position, the position of the adjustment block is positioned by the operation of the electromagnet.

[0023] Preferably, an electromagnet is fixedly provided on the side of the adjustment block, and the bar frame is made of magnetic material.

[0024] By adopting the above scheme, the electromagnet generates a strong magnet, which, with the help of the bar frame, can further assist in positioning the adjustment block, and thus position the square box.

[0025] Preferably, the bottom of the frame is provided with a telescopic sleeve, a connecting plate is engaged inside the telescopic sleeve, a connecting strip is fixedly provided on the connecting plate, and the connecting strip is fixedly connected to the bottom of the load-bearing frame.

[0026] By adopting the above solution, the telescopic sleeve and the connecting plate work together to seal the gap between the side of the load-bearing frame and the frame. When the load-bearing frame is displaced, the telescopic sleeve can be pulled to extend and retract synchronously by the linkage between the connecting strip and the connecting plate, which plays a protective role. During the movement of the forklift body, it can effectively prevent large particles of debris from entering the frame and prevent debris from interfering with the position adjustment of the load-bearing frame, thus ensuring the overall reliability of protection.

[0027] The beneficial effects of this invention are as follows: 1. The heavy-duty anti-sway integrated heavy-duty forklift of the present invention, when transferring heavy goods, can control the drive mechanism to prevent the rear of the forklift body from tilting. The support rod drives the sprocket to rotate, the sprocket rotation drives the chain to rotate, the chain further pulls the support block to slide, the sliding of the support block realizes the position adjustment of the load-bearing frame, the movement of the load-bearing frame drives the counterweight component to move synchronously, thereby achieving the effect of flexibly adjusting the counterweight point. It can flexibly change the counterweight position according to the actual operation needs, realize eccentric load compensation for different load sizes and center of gravity distributions of different goods, effectively offset the overturning moment generated during operation, significantly improve the stability of forklift operation, reduce the safety risk of vehicle rollover, and can adapt to various complex operation conditions without replacing multiple sets of counterweights.

[0028] 2. The heavy-duty anti-sway integrated heavy-duty forklift of the present invention, when a weight reduction operation is required, drives the forklift body to a flat road surface, uses a positioning mechanism to position the corresponding counterweight block inside the bar frame, releases the support limit on the lower counterweight block, and the counterweight block is released from the inside of the forklift body through a square hole. The stacking height of the counterweight block after falling is not higher than the chassis height of the forklift body. After the counterweight block is unloaded, the control limit mechanism is reset. The positioning mechanism can also drive the positioned counterweight block to move downward to achieve the disassembly of the counterweight block. It can achieve automatic weight reduction without manual disassembly and assembly of the counterweight block, can quickly adapt to various load conditions, reduce the input of parts and disassembly and assembly time, reasonably reduce the overall workload of the machine, save the operation steps of manual disassembly and assembly and handling of counterweight blocks, reduce the labor intensity of operators, avoid the safety hazards of parts collision damage and personnel injury during disassembly and assembly operations, shorten the time of working condition switching, and at the same time reduce the wear of the frame and tires, achieve the effect of energy saving and consumption reduction, and effectively improve the overall utilization rate of the equipment.

[0029] 3. The heavy-duty anti-sway integrated heavy-duty forklift described in this invention can be disassembled and assembled using two different disassembly methods. Operators can flexibly select the appropriate disassembly method based on the on-site working environment, load adjustment requirements, and equipment operating conditions, so as to quickly complete the disassembly of the counterweight and meet the adjustment and use requirements of counterweight weight and counterweight position in different scenarios.

[0030] 4. The heavy-duty anti-sway integrated heavy-duty forklift of the present invention has a telescopic sleeve and a connecting plate that cooperate with each other to seal the gap formed between the side of the load-bearing frame and the frame. When the load-bearing frame is displaced, the telescopic sleeve can be pulled to extend and retract synchronously by the linkage between the connecting strip and the connecting plate, which plays a protective role. During the movement of the forklift body, it can effectively prevent large particles of debris from entering the frame and prevent debris from interfering with the position adjustment of the load-bearing frame, thus ensuring the overall reliability of protection. Attached Figure Description

[0031] The invention will now be further described with reference to the accompanying drawings.

[0032] Figure 1 This is a perspective view of the heavy-duty, anti-sway integrated heavy-duty forklift of the present invention. Figure 2 This is a schematic diagram of the receiving groove in this invention; Figure 3 This is a schematic diagram of the frame structure in this invention; Figure 4 This is a schematic diagram of the structure of the bar frame and chain in this invention; Figure 5 This is a schematic diagram of the structure of the locking block and the adjusting block in this invention; Figure 6 This is a schematic diagram of the structure of the strip plate and the slide in this invention; Figure 7 This is a schematic diagram of the structure of the storage slot and baffle in this invention; Figure 8 This is a schematic diagram of the counterweight block in this invention; Figure 9 This is a schematic diagram of the structure of the telescopic sleeve and connecting plate in this invention.

[0033] In the diagram: 1. Forklift body; 2. Wheels; 3. Cabin; 4. Fork assembly; 5. Reception slot; 6. Frame; 7. Mounting box; 8. Drive motor; 9. Reducer; 10. Square hole; 11. Mounting bracket; 12. Support rod; 13. Sprocket; 14. Chain; 15. Support block; 16. Strip plate; 17. Slide rail; 18. Limiting slot; 19. Storage slot; 20. Baffle; 21. Guide shaft; 22. Electric push rod; 23. Load-bearing rod 24. Load-bearing frame; 25. Strip frame; 26. L-bracket; 27. Counterweight; 28. Insertion hole; 29. ​​Pin; 30. Slot; 31. Square box; 32. Locking block; 33. Sliding block; 34. Limiting shaft; 35. Adjusting screw; 36. Servo motor; 37. Adjusting block; 38. Guide rod; 39. Electromagnet; 40. Stepper motor; 41. Threaded rod; 42. Through slot; 43. Telescopic sleeve; 44. Connecting plate; 45. Connecting strip. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0035] like Figures 1 to 9As shown in the embodiment of the present invention, a heavy-duty, anti-sway integrated heavy-duty forklift includes a forklift body 1, a fork assembly 4 at the front end of the forklift body 1, wheels 2 on the forklift body 1, a receiving groove 5 fixedly disposed inside the forklift body 1, a frame 6 connected to the bottom of the receiving groove 5, and the bottom end of the frame 6 extending out of the forklift body 1, a square hole 10 at the bottom of the frame 6, mounting brackets 11 symmetrically disposed inside the frame 6, support rods 12 rotatably disposed inside the mounting brackets 11, sprockets 13 symmetrically disposed on the support rods 12, and chains sleeved on the sprockets 13. 14, and the corresponding sprocket 13 is connected by a chain 14 for transmission. A load-bearing frame 24 is provided inside the frame 6. Support blocks 15 are symmetrically arranged on the load-bearing frame 24. A drive mechanism for driving the sprocket 13 is provided on the side of the frame 6. A support mechanism for supporting the support blocks 15 is provided inside the frame 6. A strip frame 25 is symmetrically arranged on the load-bearing frame 24. L-shaped brackets 26 are arranged in an array on the strip frame 25. A counterweight assembly is provided inside the load-bearing frame 24. A limit mechanism is provided inside the support block 15. A positioning mechanism for positioning the counterweight assembly is provided inside the strip frame 25.

[0036] When a heavy-duty, anti-sway integrated heavy-duty forklift is used to transfer objects, the driver controls the movement of the forklift body 1 in the cab 3 and uses the traveling wheels 2 to assist the forklift body 1 in moving. After the forklift body 1 moves to the predetermined position, the goods can be transferred by controlling the movement of the fork assembly 4 (existing technology), thus achieving the purpose of transferring goods.

[0037] When transferring heavier goods using the fork assembly 4, to prevent the rear end of the forklift body 1 from tilting, the drive mechanism can be controlled to rotate via the support rod 12, which in turn drives the sprocket 13 to rotate. When the sprocket 13 rotates, the chain 14 moves, which in turn moves the support block 15. A wheel is provided at the bottom of the support block 15, located within the slide rail 17, which assists in the sliding of the support block 15. When the support block 15 slides, the position of the load-bearing frame 24 can be adjusted. The movement of the load-bearing frame 24 will drive the counterweight assembly to move, thereby achieving the purpose of flexibly adjusting the counterweight position. The counterweight position can be flexibly adjusted according to actual needs, and the eccentric load can be compensated according to the actual load and center of gravity of different goods, effectively offsetting the overturning moment, improving the stability of forklift operation, and reducing the risk of tipping over. At the same time, it can adapt to various working conditions without replacing multiple sets of counterweight blocks 27.

[0038] When the load is light, excessive counterweights can cause redundant load on the forklift body 1. To reduce weight, the forklift body 1 is moved to a flat area. A positioning mechanism positions the corresponding counterweight block 27 within the strip frame 25. A limiting mechanism then moves, removing the support for the lower counterweight block 27, allowing it to fall out of the forklift body 1 through the square hole 10. The stack height of the fallen counterweight blocks 27 will not exceed the chassis of the forklift body 1. After the counterweight block 27 is removed, the limiting mechanism resets, and the positioning mechanism moves the positioned counterweight block 27 downwards. The limiting mechanism then again limits the remaining counterweight blocks 27, ensuring they stack within the load-bearing frame 24. Further weight reduction is then possible. When the counterweight 27 is disassembled, the forklift body 1 can be moved to the next location. The above steps can be repeated to disassemble and reduce the counterweight 27. Alternatively, the position of the load-bearing frame 24 can be adjusted by moving the drive mechanism. After the load-bearing frame 24 is moved to an empty position, the disassembly steps can be repeated to disassemble the counterweight 27. This reduces the cost of parts and the time required for disassembly and assembly. It can also reasonably reduce the load of the whole machine and achieve automatic weight reduction. There is no need for manual disassembly of the counterweight 27. It can quickly adapt to different load conditions, save manual operation of disassembly, assembly and transportation of the counterweight 27, reduce labor intensity, avoid the safety hazards of parts being bumped and damaged and personnel being injured during disassembly and assembly, shorten the working condition switching time, reduce the wear of the frame and tires, achieve energy saving and consumption reduction, and improve the overall utilization rate of the equipment.

[0039] Furthermore, the forklift body 1 is provided with a driver's cab 3, and the drive mechanism includes a mounting box 7, a drive motor 8 and a reducer 9. The mounting box 7 is fixed to the side of the frame 6 and is located inside the forklift body 1. The drive motor 8 and the reducer 9 are both fixed inside the mounting box 7, and the output end of the drive motor 8 is fixedly connected to the input end of the reducer 9, and the output end of the reducer 9 is fixedly connected to the end of the support rod 12.

[0040] The electronic equipment on the heavy-duty anti-sway integrated heavy forklift is electrically connected to the built-in power supply, and a controller is also electrically connected to the electronic equipment. The controller can control the operation of the electronic equipment, control the movement of the drive motor 8, and drive the support rod 12 to move through the reducer 9. When the support rod 12 moves, the sprocket 13 can rotate.

[0041] Furthermore, the support mechanism includes a strip plate 16, on which a slide rail 17 is provided, and a limiting groove 18 is provided at the bottom of the strip plate 16, through which a chain 14 passes, and the chain 14 is fixedly connected to the support block 15.

[0042] A wheel corresponding to the slide 17 is provided at the bottom of the support block 15. When the position of the support block 15 is adjusted, the support block 15 can be moved smoothly by the wheel. The limiting groove 18 is used to engage and limit the chain 14 so that the chain 14 can move smoothly.

[0043] Furthermore, the limiting mechanism includes a storage groove 19, a baffle 20, a guide shaft 21, and an electric push rod 22. The storage groove 19 is located inside the support block 15 and is connected to the inside of the load-bearing frame 24. The baffle 20 passes through the storage groove 19, the guide shaft 21 passes through the baffle 20, and the other end of the guide shaft 21 is fixedly connected to the inner wall of the storage groove 19. The electric push rod 22 is fixed inside the storage groove 19, and the telescopic end of the electric push rod 22 is fixedly connected to the side of the baffle 20.

[0044] The electric push rod 22 can be used to adjust the position of the baffle 20. The baffle 20 can be guided and limited by the guide shaft 21. After the baffle 20 moves into the load-bearing frame 24, it can support and limit the counterweight 27. Conversely, by adjusting the position of the baffle 20 by the electric push rod 22, the baffle 20 is reset and enters the storage slot 19. Then the counterweight 27 is no longer supported and limited, and the counterweight 27 moves down and moves out of the forklift body 1 through the square hole 10.

[0045] Furthermore, a load-bearing rod 23 is inserted inside the support block 15, and the end of the load-bearing rod 23 is fixedly connected to the mounting bracket 11.

[0046] The support block 15 is supported and guided by the load-bearing rod 23, which allows the support block 15 to move smoothly.

[0047] Furthermore, the counterweight assembly includes counterweight blocks 27, insertion holes 28, pins 29, and slots 30. The counterweight blocks 27 are arranged in an array within the load-bearing frame 24, and the strip frame 25 and L-bracket 26 cooperate to limit the stacked counterweight blocks 27. The telescopic insertion holes 28 are symmetrically arranged on the counterweight blocks 27, the pins 29 are fixed to the bottom of the counterweight blocks 27, and the slots 30 are symmetrically arranged on the counterweight blocks 27.

[0048] The counterweight 27 can be stacked and limited by the interlocking hole 28 and the pin 29, while the load-bearing frame 24 supports and limits the stacked counterweight 27 by the cooperation of the baffle 20.

[0049] Furthermore, the side of the strip frame 25 is provided with a through groove 42. The inside of the strip frame 25 is hollow. The positioning mechanism includes a square box 31, a locking block 32, a sliding block 33, an adjusting screw 35, and a servo motor 36. The square box 31 is slidably disposed inside the strip frame 25. The locking block 32 passes through the inside of the square box 31. The sliding block 33 is disposed inside the square box 31 and is fixedly connected to the top of the locking block 32. The adjusting screw 35 is rotatably disposed inside the square box 31, and the outer surface of the adjusting screw 35 is threadedly connected to the inside of the sliding block 33. The servo motor 36 is fixed inside the square box 31, and the output end of the servo motor 36 is fixedly connected to one end of the adjusting screw 35. A limit shaft 34 is fixedly disposed inside the square box 31 and passes through the sliding block 33.

[0050] When it is necessary to reduce the weight of the stacked counterweight 27, the position of the square box 31 is adjusted so that the square box 31 is moved to the positioning point and the position of the square box 31 is positioned. Then, the servo motor 36 is controlled to drive the adjusting screw 35 to rotate. The adjusting screw 35 can adjust the position of the sliding block 33. The limiting shaft 34 guides and limits the sliding block 33. Then, the movement of the sliding block 33 can adjust the position of the locking block 32 so that one end of the locking block 32 is inserted into the corresponding locking slot 30, thereby supporting and limiting the counterweight 27. After adjusting the position of the baffle 20, the lower fixed support counterweight 27 can be disassembled and reduced. After the lower counterweight 27 is disassembled, the supporting counterweight 27 can be moved down by adjusting the square box 31. In this way, the baffle 20 enters the load-bearing frame 24, which can support and limit the upper counterweight 27.

[0051] Furthermore, symmetrical adjustment blocks 37 are arranged on the square box 31, and guide rods 38 are inserted inside the adjustment blocks 37. The ends of the guide rods 38 are fixedly connected to the inner wall of the strip frame 25. A threaded rod 41 is threadedly connected to one set of adjustment blocks 37. A stepper motor 40 is fixedly installed inside the strip frame 25, and the output end of the stepper motor 40 is fixedly connected to one end of the threaded rod 41.

[0052] When the square box 31 is adjusted and positioned vertically, the stepper motor 40 will drive the threaded rod 41 to rotate. The rotation of the threaded rod 41 can adjust the position of the corresponding adjusting block 37. The movement of the adjusting block 37 will drive the locking block 32 to move. The adjusting block 37 can be guided by the guide rod 38 to move the adjusting block 37 smoothly. After the locking block 32 moves to the predetermined position, the position of the adjusting block 37 is positioned by the operation of the electromagnet 39.

[0053] Furthermore, an electromagnet 39 is fixedly installed on the side of the adjusting block 37, and the bar frame 25 is made of magnetic material.

[0054] The electromagnet 39 generates a strong magnet when it works, which, in conjunction with the bar frame 25, can further assist in positioning the adjustment block 37, and thus the square box 31.

[0055] Furthermore, a telescopic sleeve 43 is provided at the bottom of the frame 6, a connecting plate 44 is fitted inside the telescopic sleeve 43, a connecting strip 45 is fixedly provided on the connecting plate 44, and the connecting strip 45 is fixedly connected to the bottom of the load-bearing frame 24.

[0056] The telescopic sleeve 43 has an internal snap-fit ​​telescopic structure. The connecting plate 44 is snap-fitted into the inside of the telescopic sleeve 43. The connecting plate 44 is fixedly connected to the bottom of the load-bearing frame 24 through the connecting strip 45. The telescopic sleeve 43 and the connecting plate 44 cooperate with each other to seal the gap formed between the side of the load-bearing frame 24 and the frame 6. When the load-bearing frame 24 is displaced, the telescopic sleeve 43 can be pulled to extend and retract synchronously by the linkage between the connecting strip 45 and the connecting plate 44, which plays a protective role. During the movement of the forklift body 1, it can effectively prevent large particles of debris from entering the interior of the frame 6, prevent debris from interfering with the position adjustment of the load-bearing frame 24, and ensure the overall reliability of protection.

[0057] Working principle: First, the forklift body 1 is controlled to move. The forklift wheels 2 assist in moving the forklift body 1 to a predetermined position. Then, the fork assembly 4 is controlled to move to transfer goods. When transferring heavier goods using the fork assembly 4, to prevent the rear of the forklift body 1 from tilting, the drive motor 8 is controlled to move, which in turn drives the support rod 12 via the reducer 9. The movement of the support rod 12 causes the sprocket 13 to rotate, which in turn causes the chain 14 to move. The chain 14 then moves the support block 15. The sliding of the support block 15 adjusts the position of the load-bearing frame 24. The movement of the load-bearing frame 24 then moves the counterweight assembly, allowing for flexible adjustment of the counterweight points. The purpose is to allow for flexible adjustment of the counterweight position according to actual needs, effectively counteracting the overturning moment, improving the stability of forklift operation, and reducing the risk of tipping over. When the weight of the transferred goods is small, an excessively large counterweight would cause redundant load on the forklift body 1, requiring weight reduction. This allows the forklift body 1 to move to a flat section of road. The stepper motor 40 drives the threaded rod 41 to rotate, which adjusts the position of the corresponding adjusting block 37. The movement of the adjusting block 37 moves the locking block 32. The guide rod 38 guides the adjusting block 37, ensuring smooth movement. After the locking block 32 moves to the predetermined position, the electromagnet 39 positions the adjusting block 37, controlling the servo motor 3... The operation of step 6 will drive the adjusting screw 35 to rotate, which can adjust the position of the sliding block 33. The limiting shaft 34 guides and limits the sliding block 33. The movement of the sliding block 33 can adjust the position of the locking block 32, so that one end of the locking block 32 is inserted into the corresponding locking slot 30, thereby supporting and limiting the counterweight 27. The electric push rod 22 adjusts the position of the baffle 20, so that the baffle 20 returns to its original position and enters the storage slot 19. Then, the counterweight 27 is no longer supported and limited, and the counterweight 27 moves down and moves out of the forklift body 1 through the square hole 10. The stacking height of the fallen counterweight 27 will not be higher than the chassis of the forklift body 1. After the counterweight 27 is removed, the limiting mechanism resets, and the positioning mechanism can move. The counterweight 27 is moved downwards, and the unremoved counterweight 27 can be limited again by the limiting mechanism, so that the counterweight 27 is stacked in the load-bearing frame 24. If further reduction is needed, the forklift body 1 can be moved to the next location and the above steps can be repeated to remove the counterweight 27. Alternatively, the position of the load-bearing frame 24 can be adjusted by the movement of the drive mechanism. After the load-bearing frame 24 is moved to an empty position, the disassembly steps can be repeated to remove the counterweight 27. This reduces the cost of parts and the time required for disassembly and assembly, and can also reasonably reduce the load of the whole machine, achieving automatic weight reduction without the need for manual disassembly of the counterweight 27. It can quickly adapt to different load conditions, save the manual operation of disassembling and moving the counterweight 27, and reduce labor intensity.

[0058] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heavy-duty, large-tonnage, anti-sway integrated heavy-duty forklift, characterized in that: Includes a forklift body (1), a fork assembly (4) is provided at the front end of the forklift body (1), a traveling wheel (2) is provided on the forklift body (1), a receiving groove (5) is fixedly provided inside the forklift body (1), a frame (6) is connected to the bottom of the receiving groove (5), and the bottom end of the frame (6) extends out of the forklift body (1), and a square hole (10) is provided at the bottom of the frame (6). The frame (6) is symmetrically provided with mounting brackets (11), and a support rod (12) is rotatably provided in the mounting bracket (11). A sprocket (13) is symmetrically provided on the support rod (12), and a chain (14) is sleeved on the sprocket (13). The corresponding sprocket (13) is connected to the chain (14) through transmission. The frame (6) is provided with a load-bearing frame (24), and a support block (15) is symmetrically provided on the load-bearing frame (24). The side of the frame (6) is provided with a drive mechanism for driving the sprocket (13) to move. The frame (6) is provided with a support mechanism for supporting the support block (15). The load-bearing frame (24) is symmetrically provided with a strip frame (25), and an L-shaped bracket (26) is arranged in an array on the strip frame (25). The load-bearing frame (24) is provided with a counterweight assembly, the support block (15) is provided with a limit mechanism, and the strip frame (25) is provided with a positioning mechanism for positioning the counterweight assembly.

2. The heavy-duty, anti-sway integrated heavy-duty forklift according to claim 1, characterized in that: The forklift body (1) is provided with a cab (3). The drive mechanism includes a mounting box (7), a drive motor (8) and a reducer (9). The mounting box (7) is fixed to the side of the frame (6) and is located inside the forklift body (1). The drive motor (8) and the reducer (9) are both fixed inside the mounting box (7). The output end of the drive motor (8) is fixedly connected to the input end of the reducer (9), and the output end of the reducer (9) is fixedly connected to the end of the support rod (12).

3. The heavy-duty, anti-sway integrated forklift according to claim 2, characterized in that: The support mechanism includes a strip plate (16), on which a slide rail (17) is provided. A limiting groove (18) is provided at the bottom of the strip plate (16), and the chain (14) passes through the limiting groove (18). The chain (14) is fixedly connected to the support block (15).

4. A heavy-duty, large-tonnage, anti-sway integrated heavy-duty forklift according to claim 3, characterized in that: The limiting mechanism includes a storage groove (19), a baffle (20), a guide shaft (21), and an electric push rod (22). The storage groove (19) is located inside the support block (15) and is connected to the inside of the load-bearing frame (24). The baffle (20) passes through the storage groove (19). The guide shaft (21) passes through the baffle (20) and is fixedly connected to the inner wall of the storage groove (19) at the other end. The electric push rod (22) is fixed inside the storage groove (19) and the telescopic end of the electric push rod (22) is fixedly connected to the side of the baffle (20).

5. A heavy-duty, large-tonnage, anti-sway integrated heavy-duty forklift according to claim 1, characterized in that: The support block (15) is provided with a load-bearing rod (23), and the end of the load-bearing rod (23) is fixedly connected to the mounting frame (11).

6. A heavy-duty, large-tonnage, anti-sway integrated heavy-duty forklift according to claim 5, characterized in that: The counterweight assembly includes counterweight blocks (27), sockets (28), pins (29), and slots (30). The counterweight blocks (27) are arranged in an array inside the load-bearing frame (24), and the strip frame (25) and L-bracket (26) cooperate to limit the stacked counterweight blocks (27). Telescopic sockets (28) are symmetrically arranged on the counterweight blocks (27). The pins (29) are fixed to the bottom of the counterweight blocks (27), and the slots (30) are symmetrically arranged on the counterweight blocks (27).

7. A heavy-duty, large-tonnage, anti-sway integrated heavy-duty forklift according to claim 6, characterized in that: The strip frame (25) has a through slot (42) on its side. The inside of the strip frame (25) is hollow. The positioning mechanism includes a square box (31), a locking block (32), a sliding block (33), an adjusting screw (35), and a servo motor (36). The square box (31) is slidably disposed inside the strip frame (25). The locking block (32) passes through the inside of the square box (31). The sliding block (33) is disposed inside the square box (31), and the sliding block (36) is also disposed inside the square box (31). 3) The adjusting screw (35) is fixedly connected to the top of the card block (32). The adjusting screw (35) is rotatably set inside the square box (31), and the outer surface of the adjusting screw (35) is threadedly connected to the inside of the sliding block (33). The servo motor (36) is fixed inside the square box (31), and the output end of the servo motor (36) is fixedly connected to one end of the adjusting screw (35). The square box (31) is fixedly provided with a limit shaft (34), and the limit shaft (34) passes through the sliding block (33).

8. A heavy-duty, large-tonnage, anti-sway integrated heavy-duty forklift according to claim 7, characterized in that: The square box (31) is symmetrically provided with adjustment blocks (37), and a guide rod (38) is provided inside the adjustment block (37). The end of the guide rod (38) is fixedly connected to the inner wall of the strip frame (25). A set of adjustment blocks (37) is threadedly connected with a threaded rod (41). A stepper motor (40) is fixedly provided inside the strip frame (25), and the output end of the stepper motor (40) is fixedly connected to one end of the threaded rod (41).

9. A heavy-duty, large-tonnage, anti-sway integrated heavy-duty forklift according to claim 8, characterized in that: An electromagnet (39) is fixedly installed on the side of the adjustment block (37), and the bar frame (25) is made of magnetic material.

10. A heavy-duty, large-tonnage, anti-sway integrated heavy-duty forklift according to claim 3, characterized in that: The bottom of the frame (6) is provided with a telescopic sleeve (43), and a connecting plate (44) is fitted inside the telescopic sleeve (43). A connecting strip (45) is fixedly provided on the connecting plate (44), and the connecting strip (45) is fixedly connected to the bottom of the load-bearing frame (24).

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