Three-fulcrum forklift capable of providing various lifting heights

Abstract

The utility model discloses a three-fulcrum forklift capable of providing various lifting heights, which belongs to the technical field of forklifts, can provide various different lifting heights through the cooperative work of a lifting hydraulic cylinder, a lifting chain and a chain wheel, can meet the requirements of goods shelves with different heights and goods carrying, and is convenient to use. And the universality and the adaptability of the forklift are greatly improved. When the lifting height needs to be adjusted, an operator only needs to input a required lifting height instruction through an operation panel in a cab, the control system can automatically complete adjustment of the lifting height, and complex manual operation or mechanical structure switching is not needed. Therefore, the labor intensity of operators is reduced, the operation efficiency is improved, the cargo carrying time is shortened, and the problems that a traditional three-fulcrum forklift is single in lifting height, difficult to adapt to diversified operation requirements and inconvenient to adjust are solved.

Description

Technical Field

[0001] This utility model belongs to the field of forklift technology, and more specifically it relates to a three-point forklift capable of providing multiple lifting heights. Background Technology

[0002] Forklifts are indispensable material handling equipment in modern logistics and warehousing industries. Three-point forklifts, due to their compact structure and small turning radius, are widely used in spaces with limited capacity.

[0003] Traditional three-point forklifts typically use a fixed lifting mechanism, which limits their lifting height. In situations requiring higher lifting heights, such as high-rise warehouses and large logistics centers, traditional three-point forklifts cannot meet the demands. This not only restricts the forklift's applicability but also impacts the efficiency of logistics and warehousing operations. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a three-point forklift that can provide multiple lifting heights, which has the advantages of solving the problems of the single lifting height, difficulty in adapting to diverse operation needs, and inconvenience of adjustment of traditional three-point forklifts.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A three-point forklift capable of providing multiple lifting heights includes a body, a mast, a tilting hydraulic cylinder, a fork carriage, forks, a lifting mechanism, a hydraulic system, and a control system. The mast is rotatably connected to the body at the bottom and connected to the body at the top via the tilting hydraulic cylinder. The mast consists of an inner mast and an outer mast, with the inner mast nested inside the outer mast and sliding vertically with the inner mast. The forks are mounted on the outward-facing end face of the fork carriage and slide vertically with the inner mast at the bottom.

[0007] The lifting mechanism includes a lifting hydraulic cylinder, a lifting chain, and a sprocket. The bottom and top of the lifting hydraulic cylinder are connected to the lower part of the outer mast and the upper part of the inner mast, respectively. One end of the chain is connected to the upper part of the outer mast, and the other end of the chain is connected to the fork carriage. The sprocket is located on the upper part of the inner mast and is adapted to the chain.

[0008] The advantages of this design are at least as follows: through the coordinated operation of the lifting hydraulic cylinder, lifting chain, and sprocket, the forklift of this invention can provide a variety of different lifting heights to meet the needs of racks and goods handling at different heights, greatly improving the forklift's versatility and adaptability. When the lifting height needs to be adjusted, the operator only needs to input the required lifting height command through the control panel in the cab, and the control system will automatically complete the adjustment, without the need for complex manual operation or mechanical structure switching. This not only reduces the operator's labor intensity but also improves work efficiency and shortens goods handling time.

[0009] The present invention is further configured such that the hydraulic system includes a hydraulic pump, an oil tank, a control valve, and pipelines.

[0010] The advantages of this scheme are at least as follows: the hydraulic pump draws hydraulic oil from the tank and, after being regulated by the control valve, delivers it to the lifting hydraulic cylinder. The control valve can precisely control the flow and pressure of the hydraulic oil, enabling independent control of the lifting hydraulic cylinder to meet the needs of different lifting heights. Simultaneously, the hydraulic system is also equipped with safety devices such as safety valves and relief valves to ensure that the system pressure does not become excessive during lifting, thus guaranteeing the safe operation of the forklift.

[0011] The present invention is further configured such that: the control system includes a controller and an operation panel, the operation panel being disposed in the driver's cab.

[0012] The advantages of this scheme are at least as follows: operators can input the required lifting height command through the control panel. Based on the commands from the control panel, the controller precisely controls the opening of the control valves in the hydraulic system, adjusts the working state of the lifting hydraulic cylinder, and achieves precise control of the lifting height.

[0013] The present invention is further configured such that: a plurality of sliding rollers are provided between the outer gantry and the inner gantry.

[0014] The advantages of this solution are at least as follows: by incorporating sliding rollers, the presence of these rollers helps reduce friction between the inner and outer masts, thereby lowering energy consumption. Reduced friction allows the forklift to operate more smoothly, minimizing unnecessary energy consumption, which is significant for improving forklift energy efficiency and extending its service life.

[0015] The present invention is further configured such that: the bottom of the fork is provided with a mounting groove, and a laser rangefinder sensor is provided in the mounting groove.

[0016] The advantages of this scheme are at least as follows: by setting up mounting slots and laser rangefinders, it is possible to monitor the parameters of the gantry's lifting height in real time and transmit these data to the controller. The controller, based on the instructions from the operation panel, precisely controls the working state of the lifting hydraulic cylinder, thereby achieving precise control of the lifting height.

[0017] The present invention is further configured such that: the front end face of the outer gantry is provided with a T-shaped slide rail portion, and the front end face of the inner gantry is provided with a T-shaped slider portion that is adapted to the T-shaped slide rail portion.

[0018] The advantages of this scheme are at least as follows: by setting up T-shaped slide rails and T-shaped sliders, the connection between the inner and outer gantry frames can be made more robust, thereby enhancing the structural stability of the connection.

[0019] In summary, this utility model has at least the following advantages:

[0020] 1. By incorporating sliding rollers, the presence of these rollers helps reduce friction between the inner and outer masts, thereby lowering energy consumption. Reduced friction allows the forklift to operate more smoothly, minimizing unnecessary energy consumption, which is crucial for improving forklift energy efficiency and extending its service life.

[0021] 2. By setting up mounting slots and laser rangefinders, the parameters of the gantry's lifting height can be monitored in real time and transmitted to the controller. The controller then precisely controls the working state of the lifting hydraulic cylinders according to the instructions from the operation panel, thereby achieving precise control of the lifting height.

[0022] 3. By setting T-shaped slide rails and T-shaped sliders, the connection between the inner and outer gantry frames can be made more robust, enhancing the structural stability of the connection. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention;

[0024] Figure 2 This is a partial structural schematic diagram of the present invention;

[0025] Figure 3 This is a schematic diagram of the lifting mechanism from the bottom of the present invention.

[0026] Reference numerals: 1. Vehicle body; 2. Mast; 201. Inner mast; 202. Outer mast; 3. Tilting hydraulic cylinder; 4. Fork carriage; 5. Forks; 6. Lifting mechanism; 601. Lifting hydraulic cylinder; 602. Lifting chain; 603. Sprocket; 7. Sliding roller; 8. Mounting groove; 9. Laser rangefinder sensor; 10. T-shaped slide rail; 11. T-shaped slider. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0028] A three-point forklift capable of providing multiple lifting heights, such as Figure 1 As shown, the system includes a vehicle body 1, a mast 2, a tilting hydraulic cylinder 3, a fork carriage 4, forks 5, a lifting mechanism 6, a hydraulic system, and a control system. The mast 2 is rotatably connected to the vehicle body 1 at the bottom and connected to the vehicle body 1 at the top via the tilting hydraulic cylinder 3. The mast 2 consists of an inner mast 201 and an outer mast 202. The inner mast 201 is nested inside the outer mast 202 and slides up and down with the inner mast 202. The forks 5 are located on the outward-facing end face of the fork carriage 4 and slide up and down with the inner mast 201 at the bottom. The lifting mechanism 6 includes a lifting hydraulic cylinder 601, a lifting chain 602, and a sprocket 603. The bottom and top of the lifting hydraulic cylinder 601 are connected to the bottom of the outer mast 202 and the top of the inner mast 201, respectively. One end of the chain is connected to the top of the outer mast 202, and the other end of the chain is connected to the fork carriage 4. The sprocket 603 is located above the inner mast 201 and is adapted to the chain. Through the coordinated operation of the lifting hydraulic cylinder 601, lifting chain 602, and sprocket 603, the forklift of this invention can provide a variety of different lifting heights to meet the needs of racks and goods handling at different heights, greatly improving the forklift's versatility and adaptability. When the lifting height needs to be adjusted, the operator only needs to input the required lifting height command through the control panel in the cab, and the control system will automatically complete the adjustment, without the need for complex manual operation or mechanical structure switching. This not only reduces the operator's labor intensity but also improves work efficiency and shortens goods handling time.

[0029] The hydraulic system includes a hydraulic pump, oil tank, control valves, and piping. The hydraulic system provides power to the lifting mechanism 6. The hydraulic pump draws hydraulic oil from the tank, which, after being regulated by the control valves, is delivered to the lifting hydraulic cylinder 601. The control valves precisely control the flow and pressure of the hydraulic oil, enabling independent control of the lifting hydraulic cylinder 601 to meet different lifting height requirements. Simultaneously, the hydraulic system is equipped with safety valves and relief valves to ensure that the system pressure does not become excessive during lifting, guaranteeing the safe operation of the forklift.

[0030] The control system includes a controller and an operation panel, which is located in the cab. The operator can input the desired lifting height command through the operation panel. Based on the commands from the operation panel, the controller precisely controls the opening of the control valves in the hydraulic system and adjusts the working state of the lifting hydraulic cylinder 601 to achieve precise control of the lifting height.

[0031] like Figure 2As shown, several sliding rollers 7 are provided between the outer mast 202 and the inner mast 201. The presence of these sliding rollers 7 helps reduce the friction between the inner and outer masts 202, thereby reducing energy consumption. By reducing friction, the forklift can operate more smoothly, reducing unnecessary energy consumption, which is of great significance for improving the forklift's energy efficiency and extending its service life.

[0032] like Figure 3 As shown, the bottom of the fork 5 is provided with a mounting groove 8, and a laser rangefinder sensor 9 is installed in the mounting groove 8. By setting the mounting groove 8 and the laser rangefinder sensor 9, the parameters of the lifting height of the gantry 2 can be monitored in real time, and these data are transmitted to the controller. The controller precisely controls the working state of the lifting hydraulic cylinder 601 according to the instructions from the operation panel, so as to achieve precise control of the lifting height.

[0033] like Figure 2 As shown, the front end face of the outer gantry 202 is provided with a T-shaped slide rail 10, and the front end face of the inner gantry 201 is provided with a T-shaped slider 11 that is compatible with the T-shaped slide rail 10. By providing the T-shaped slide rail 10 and the T-shaped slider 11, the connection between the inner gantry 201 and the outer gantry 202 can be made more robust, enhancing the structural connection stability between them.

[0034] The working process and beneficial effects of this utility model are as follows: During the handling process, if it is necessary to adjust the lifting height to adapt to different shelf heights or operational requirements, the operator inputs a new lifting height command again through the control panel. The controller accurately calculates and controls the working state of the lifting hydraulic cylinder 601 in the hydraulic system based on the current lifting height data of the mast 2 fed back by the laser rangefinder 9. If the lifting height adjustment requires a range of adjustment, the lifting hydraulic cylinder 601 mainly plays its role; it achieves precise position adjustment of the inner mast 201 within the outer mast 202, thereby achieving the required lifting height.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A three-point forklift capable of providing multiple lifting heights, comprising a chassis (1), a mast (2), a tilting hydraulic cylinder (3), a fork carriage (4), forks (5), a lifting mechanism (6), a hydraulic system, and a control system, characterized in that: The mast (2) is rotatably connected to the vehicle body (1) at the bottom, and the mast (2) is connected to the vehicle body (1) at the top via a tilting hydraulic cylinder (3). The mast (2) is composed of an inner mast (201) and an outer mast (202). The inner mast (201) is nested inside the outer mast (202) and slides up and down with the outer mast (202). The forks (5) are set on the outward end face of the fork carriage (4). The fork carriage (4) slides up and down with the inner mast (201) at the bottom. The lifting mechanism (6) includes a lifting hydraulic cylinder (601), a lifting chain (602), and a sprocket (603). The bottom and top of the lifting hydraulic cylinder (601) are connected to the lower part of the outer mast (202) and the upper part of the inner mast (201), respectively. One end of the chain is connected to the upper part of the outer mast (202), and the other end of the chain is connected to the fork carriage (4). The sprocket (603) is located above the inner mast (201) and is adapted to the chain.

2. A three-point forklift capable of providing multiple lifting heights according to claim 1, characterized in that: The hydraulic system includes a hydraulic pump, an oil tank, control valves, and pipelines.

3. A three-point forklift capable of providing multiple lifting heights according to claim 1, characterized in that: The control system includes a controller and an operation panel, which is located in the driver's cab.

4. A three-point forklift capable of providing multiple lifting heights according to claim 1, characterized in that: Several sliding rollers (7) are provided between the outer gantry (202) and the inner gantry (201).

5. A three-point forklift capable of providing multiple lifting heights according to claim 1, characterized in that: The fork (5) has a mounting groove (8) at the bottom, and a laser rangefinder (9) is installed in the mounting groove (8).

6. A three-point forklift capable of providing multiple lifting heights according to claim 1, characterized in that: The outer gantry (202) has a T-shaped slide rail (10) on its front end face, and the inner gantry (201) has a T-shaped slider (11) on its front end face that is compatible with the T-shaped slide rail (10).

Images