A telescopic boom forklift

Abstract

The present invention discloses a telescopic boom type carrier, which comprises a vehicle frame chassis. Four driving castor wheels are evenly distributed at the bottom of the vehicle frame chassis. A working chassis is arranged on the vehicle frame, and two groups of telescopic lifting arm assemblies are arranged on the working chassis; A transverse movement mechanism is arranged between the vehicle frame chassis and the working chassis, which can realize the left and right transverse movement of the telescopic lifting arm assemblies; A longitudinal movement mechanism is arranged between each group of telescopic lifting arm assemblies and the working chassis, which can realize the front and rear longitudinal movement of the telescopic lifting arm assemblies. The technical solution of the present invention, the telescopic boom type carrier has the operation characteristics of all-wheel drive and all-wheel steering and the two-way control driving function, and the all-wheel steering has the 360-degree steering ability. The telescopic boom type carrier of the present invention can meet the driving requirements for loading, unloading and transporting extra-long and extra-heavy materials in the narrow space in the warehouse.

Description

Technical Field

[0001] The present invention relates to the field of special material handling equipment, and particularly to a telescopic boom forklift truck. Background Art

[0002] The storage of materials in coal mines or cavern storages is a special environment, and there are strict requirements for the transportation and placement of materials. Especially in coal mines, there are also environmental explosion-proof requirements, which increase the difficulty of transporting, placing, and stacking materials. The requirements for transporting, placing, and stacking extra-long and overweight materials are even more stringent. Usually, when storing extra-long and overweight materials in coal mines or cavern storages, if the position for stacking extra-long and overweight materials in the coal mine or cavern storage is far from the ground or the cavern exit, it is necessary to have both underground or in-storage loading and unloading handling devices and flatbed trucks. First, the extra-long and overweight materials are transported from the ground or outside the cavern storage to the underground or into the cavern storage by the flatbed truck, and then the loading and unloading handling device is used to load, unload, and stack the extra-long and overweight materials from the flatbed truck to the designated position, so as to complete the work of transporting and stacking the extra-long and overweight materials.

[0003] In order to reduce the number of devices and improve work efficiency, it is necessary to combine the flatbed truck and the loading and unloading handling device into one, and use one device to complete the work of transporting extra-long and overweight materials and loading, unloading, and stacking them to the designated position. This can reduce the time for loading, unloading, and transferring extra-long and overweight materials, complete the work of transporting, loading, and stacking extra-long and overweight materials at one time, and better meet the storage requirements for extra-long and overweight materials in special environments. Summary of the Invention

[0004] To solve the above technical problems, the main object of the present invention is to provide a telescopic boom forklift truck to solve the handling equipment used in environments such as coal mines and cavern storages.

[0005] To achieve the above object, the present invention adopts the following technical solutions to solve.

[0006] A telescopic boom forklift truck includes a frame chassis, and four power steering wheels are evenly distributed at the bottom of the frame chassis. A working chassis is arranged on the frame, and two groups of telescopic lifting arm assemblies are arranged on the working chassis; a transverse movement mechanism is arranged between the frame chassis and the working chassis, which can realize the left and right transverse movement of the telescopic lifting arm assemblies; a longitudinal movement mechanism is arranged between each group of telescopic lifting arm assemblies and the working chassis, which can realize the front and rear longitudinal movement of the telescopic lifting arm assemblies.

[0007] Further, each group of telescopic lifting arm assemblies includes a bottom plate, a column, and an erection oil cylinder; the lower end of the column is fixedly connected to the bottom plate, the upper end of the column is hinged with a telescopic oil cylinder, and a winch is connected to the piston rod of the telescopic oil cylinder; the lower end of the erection oil cylinder is hinged to the bottom plate, and the end of the piston rod of the erection oil cylinder is hinged to the middle part of the cylinder body of the telescopic oil cylinder.

[0008] Further, the transverse movement mechanism includes a transverse movement motor and a transverse movement rack; the transverse movement rack is fixedly connected horizontally on the vehicle frame chassis, the lower surface of the working chassis is fixedly connected with a transverse movement motor, and a transverse movement gear meshing with the transverse movement rack is connected to the output shaft of the transverse movement motor.

[0009] Further, the longitudinal movement mechanism includes a longitudinal movement motor and a longitudinal movement rack; the longitudinal movement rack is fixedly connected longitudinally on the lower surface of the bottom plate, the upper surface of the working chassis is fixedly connected with the longitudinal movement motor, and a longitudinal movement gear meshing with the longitudinal movement rack is connected to the output shaft of the longitudinal movement motor.

[0010] Further, four non-powered universal load-bearing wheels are fixedly connected to the bottom of the vehicle frame chassis, and each universal load-bearing wheel is close to a powered steering wheel.

[0011] Further, a cab is provided on the working chassis, and the cab is located between two groups of the telescopic lifting arm assemblies.

[0012] Further, it further includes a vehicle whole operating system and a controller, and the controller is connected to the vehicle whole operating system in a wired or wireless manner.

[0013] The telescopic arm type transporter of the technical solution of the present invention has the operation characteristics of all-wheel drive and all-wheel steering and the two-way control driving function, and the all-wheel steering has the 360-degree steering ability. The telescopic arm type transporter of the present invention can meet the driving requirements for loading, unloading and transporting extra-long and extra-heavy materials in the narrow space in the warehouse. Brief Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to the structures shown in these drawings.

[0015] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the telescopic arm type transporter of the present invention;

[0016] Figure 2 It is a three-dimensional schematic diagram of the telescopic lifting arm assembly of an embodiment of the telescopic arm type transporter of the present invention;

[0017] Figure 3 It is Figure 1 a partial enlarged view of the position A in

[0018] Figure 4 It is a side view of the telescopic arm type transporter of the present invention when lifting;

[0019] In the above figures:

[0020] 1 frame chassis; 2 powered steering wheel; 3 working chassis;

[0021] 4 telescopic lifting arm assembly; 401 bottom plate; 402 column; 403 erection oil cylinder; 404 telescopic oil cylinder; 405 winch;

[0022] 5 transverse movement motor; 6 transverse movement rack; 7 longitudinal movement motor; 8 longitudinal movement rack; 9 universal load-bearing wheel; 10 cab. Detailed implementation manners

[0023] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given in conjunction with the accompanying drawings.

[0024] Specific details are set forth in the following description in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific implementation manners disclosed below.

[0025] The storage of materials in coal mines or cavern storages is a special environment, and there are strict requirements for the transportation and placement of materials. Especially in coal mines, there are also environmental explosion-proof requirements, which increase the difficulty of transporting, placing and stacking materials. The requirements for transporting, placing and stacking extra-long and overweight materials are even more stringent. Usually, when storing extra-long and overweight materials in coal mines or cavern storages, if the position for stacking extra-long and overweight materials in the coal mine or cavern storage is far from the ground or the cavern exit, it is necessary to have both underground or in-store loading, unloading and handling devices and flatbed trucks. First, transport the extra-long and overweight materials from the ground or outside the cavern storage to the underground or inside the cavern storage by the flatbed truck, and then use the loading, unloading and handling device to load, unload and stack the extra-long and overweight materials from the flatbed truck to the designated position, so as to complete the work of transporting and stacking extra-long and overweight materials.

[0026] In order to reduce the number of devices and improve work efficiency, it is necessary to combine the flatbed truck and the loading, unloading and handling device into one, and use one device to complete the work of transporting extra-long and overweight materials and loading, unloading and stacking them to the designated position. This can reduce the time for loading, unloading and transferring extra-long and overweight materials, and complete the work of transporting, loading, unloading and stacking extra-long and overweight materials at one time, better meeting the storage requirements for extra-long and overweight materials in special environments.

[0027] Please refer to Figure 1, A telescopic boom forklift, including a frame chassis 1, four powered steering wheels 2 are evenly distributed at the bottom of the frame chassis 1, a working chassis 3 is arranged on the frame, and two sets of telescopic lifting arm assemblies 4 are arranged on the working chassis 3; A transverse movement mechanism is arranged between the frame chassis 1 and the working chassis 3, which can realize the left and right transverse movement of the telescopic lifting arm assembly 4; A longitudinal movement mechanism is arranged between each set of telescopic lifting arm assemblies 4 and the working chassis 3, which can realize the front and rear longitudinal movement of the telescopic lifting arm assembly 4.

[0028] In the above embodiments, the frame chassis 1 is rectangular. The four powered steering wheels 2 at the bottom of the frame chassis 1 serve as the driving force of the forklift. The four powered steering wheels 2 have independent electric drive systems, and the four powered steering wheels 2 can rotate the same angle simultaneously to achieve traveling in any direction on the horizontal plane. A telescopic lifting arm assembly 4 that can move left and right and move back and forth is arranged on the frame bottom plate 401. Therefore, this forklift is especially suitable for working environments such as coal mines or caverns where it is not easy to turn around. During operation, the four powered steering wheels 2 drive the forklift to travel to the destination, and the telescopic lifting arm assembly 4 moves left and right and back and forth on the frame chassis 1 to achieve the lifting and stacking of heavy objects.

[0029] Further, please refer to Figure 2 , Each set of telescopic lifting arm assemblies 4 includes a bottom plate 401, a column 402 and an erection oil cylinder 403; The lower end of the column 402 is fixedly connected to the bottom plate 401, the upper end of the column 402 is hinged with a telescopic oil cylinder 404, and a winch 405 is connected to the piston rod of the telescopic oil cylinder 404; The lower end of the erection oil cylinder 403 is hinged to the bottom plate 401, and the end of the piston rod of the erection oil cylinder 403 is hinged to the middle of the cylinder body of the telescopic oil cylinder 404.

[0030] In the above embodiments, a specific structure of the telescopic lifting arm assembly 4 is specifically described. The piston rod of the telescopic oil cylinder 404 extends above the lifted heavy object, the winch 405 releases the steel wire rope, the staff ties up the heavy object, the steel wire rope of the winch 405 winds up, the heavy object is lifted, and the piston rod of the telescopic oil cylinder 404 retracts to temporarily place the heavy object on the forklift. If the height needs to be increased during the lifting process, the erection oil cylinder 403 can be started to lift the telescopic oil cylinder 404.

[0031] Further, refer to Figure 3 and Figure 4 , The transverse movement mechanism includes a transverse movement motor 5 and a transverse movement rack 6; The transverse movement rack 6 is fixedly connected horizontally on the frame chassis 1, the lower surface of the working chassis 3 is fixedly connected with a transverse movement motor 5, and a transverse movement gear meshing with the transverse movement rack 6 is connected to the output shaft of the transverse movement motor 5. Correspondingly, in order to reduce friction, a guide rail pair is arranged between the frame chassis 1 and the working chassis 3.

[0032] Further, the longitudinal movement mechanism includes a longitudinal movement motor 7 and a longitudinal movement rack 8; the longitudinal movement rack 8 is longitudinally and fixedly connected to the lower surface of the bottom plate 401, the longitudinal movement motor 7 is fixedly connected to the upper surface of the working chassis 3, and a longitudinal movement gear meshing with the longitudinal movement rack 8 is connected to the output shaft of the longitudinal movement motor 7. Correspondingly, in order to reduce friction, a guide rail pair is provided between the vehicle frame chassis 1 and the bottom plate 401. There are two ways for the telescopic lifting arm assembly 4 to slide: the two telescopic lifting arm assemblies 4 can slide simultaneously, or the two telescopic lifting arm assemblies 4 can slide independently.

[0033] Further, four non-powered universal load-bearing wheels 9 are fixedly connected to the bottom of the vehicle frame chassis 1, and each universal load-bearing wheel 9 is close to a powered steering wheel 2.

[0034] In the above embodiments, a non-powered universal load-bearing wheel 9 is arranged beside each powered steering wheel 2 to share the pressure borne by the powered steering wheel 2, and the non-powered universal load-bearing wheel has followability.

[0035] Further, a cab 10 is arranged on the working chassis 3, and the cab 10 is located between the two telescopic lifting arm assemblies 4.

[0036] Further, it also includes a vehicle operating system and a controller, and the controller is connected to the vehicle operating system by wire or wirelessly.

[0037] In the above embodiments, the driver can sit in the cab 10 to operate the entire forklift. If the working scenario does not allow people to approach, the driver can control the forklift through a remote control.

[0038] The operation processes of the telescopic arm forklift in the working state and the moving state are as follows:

[0039] Working state:

[0040] Start the battery power system in the cab 10, or the operator remotely starts the battery power system by wire outside the cab 10. Through the operating system, the four independent electric drive systems of the whole vehicle drive the four powered steering wheels 2, so that the four powered steering wheels 2 turn in unison and approach the extra-long and extra-heavy materials. The four non-powered universal load-bearing wheels 9 follow and turn in the same direction as the four powered steering wheels 2. Through the fine adjustment of the operating system, the whole vehicle accurately approaches the side of the extra-long and extra-heavy materials. Then, through the operating system, the working chassis 3 on the frame chassis 1 approaches the lifting position of the extra-long and extra-heavy materials. Use the extension of the erection cylinder 403 to lift and hoist, or use the telescopic boom to extend along the extension cylinder to approach the lifting position of the extra-long and extra-heavy materials, and also use the extension of the erection cylinder 403 to lift and hoist. After hoisting, through the operating system, the working chassis 3 on the frame chassis 1 retracts, or retract the telescopic boom along the extension cylinder to adjust the position of the extra-long and extra-heavy materials, and place it stably on one side surface of the telescopic boom type forklift truck to complete the entire working state.

[0041] Moving and driving state:

[0042] Start the battery power system in the cab 10, or the operator remotely starts the battery power system by wire outside the cab 10. Through the operating system, the four independent electric drive systems of the whole vehicle drive the four powered steering wheels 2, so that the four powered steering wheels 2 turn in unison in the driving direction of the whole vehicle. The four non-powered universal load-bearing wheels 9 follow and turn in the same direction as the four powered steering wheels 2. Through the operation of the operating system, the whole vehicle can complete the moving and driving in any direction.

[0043] The beneficial effects of the present invention are: The telescopic boom type forklift truck has the operating characteristics of all-wheel drive and all-wheel steering and the two-way control driving function. The all-wheel steering has the ability of 360-degree steering. The telescopic boom type forklift truck of the present invention can meet the driving requirements for loading, unloading and handling extra-long and extra-heavy materials in the narrow space in the warehouse.

[0044] Although the present invention has been described in detail with general descriptions and specific embodiments in this specification, based on the present invention, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the present invention all fall within the scope of protection required by the present invention.

Claims

1. A telescopic boom forklift, characterized in that, Applied in the environments of coal mines and cavern storages, it includes a frame chassis (1). Four power steering wheels (2) are evenly distributed at the bottom of the frame chassis (1). A working chassis (3) is arranged on the frame. Two sets of telescopic lifting arm assemblies (4) are arranged on the working chassis (3); A transverse movement mechanism is arranged between the frame chassis (1) and the working chassis (3), which can realize the left - right transverse movement of the telescopic lifting arm assemblies (4); A longitudinal movement mechanism is arranged between each set of telescopic lifting arm assemblies (4) and the working chassis (3), which can realize the front - rear longitudinal movement of the telescopic lifting arm assemblies (4). Each set of telescopic lifting arm assemblies (4) includes a bottom plate (401), a column (402) and an erection oil cylinder (403); The lower end of the column (402) is fixedly connected to the bottom plate (401), the upper end of the column (402) is hinged with a telescopic oil cylinder (404), and a winch (405) is connected to the piston rod of the telescopic oil cylinder (404); The lower end of the erection oil cylinder (403) is hinged to the bottom plate (401), and the end of the piston rod of the erection oil cylinder (403) is hinged to the middle of the cylinder body of the telescopic oil cylinder (404). The transverse movement mechanism includes a transverse movement motor (5) and a transverse movement rack (6); The transverse movement rack (6) is fixedly connected horizontally on the frame chassis (1), a transverse movement motor (5) is fixedly connected to the lower surface of the working chassis (3), and a transverse movement gear meshing with the transverse movement rack (6) is connected to the output shaft of the transverse movement motor (5).

2. The telescopic boom forklift according to claim 1, wherein, The longitudinal movement mechanism includes a longitudinal movement motor (7) and a longitudinal movement rack (8); The longitudinal movement rack (8) is fixedly connected longitudinally to the lower surface of the bottom plate (401), the longitudinal movement motor (7) is fixedly connected to the upper surface of the working chassis (3), and a longitudinal movement gear meshing with the longitudinal movement rack (8) is connected to the output shaft of the longitudinal movement motor (7).

3. The telescopic boom forklift according to claim 1, wherein Four non - powered universal load - bearing wheels (9) are fixedly connected to the bottom of the frame chassis (1), and each universal load - bearing wheel (9) is close to a power steering wheel (2).

4. The telescopic boom forklift according to claim 1, characterized in that, A cab (10) is arranged on the working chassis (3), and the cab (10) is located between the two sets of telescopic lifting arm assemblies (4).

5. The telescopic boom forklift according to claim 4, characterized in that, It also includes a vehicle - wide operating system and a controller, and the controller is connected to the vehicle - wide operating system by wire or wirelessly.

Images