CN103288010B - A kind of fork lift truck structure - Google Patents

Abstract

The invention provides a forklift structure applied in the field of cargo lightering equipment. The inner mast (3) of the forklift structure is embedded on the outer mast (2), and the lifting frame (4) is embedded on the inner mast (3). ), a pulley (7) is installed on the upper part of each lifting cylinder (6) of the forklift structure, one end of the lifting cylinder (6) is connected with the lower end of the outer mast (2), and the other end of the lifting cylinder (5) is connected with The inner mast (3) is connected, one end of the chain (8) is connected with the lifting frame (4), and the other end of the chain (8) bypasses the pulley (7) installed on the upper end of the lifting cylinder (6) and connects with the outer The upper end of the mast (2) is connected, and the lifting cylinder (6) is connected with the control part (9) that controls the lifting of the lifting cylinder (6). The combination of components can improve the handling and bearing capacity of the forklift, and reduce the labor intensity of the operator while ensuring the safety of the handling work. <!--1-->

Description

A forklift structure

technical field

The invention belongs to the technical field of cargo lightering equipment, and more specifically relates to a forklift structure.

Background technique

The hydraulic lifting system is an important part of the forklift, and the lifting and handling of goods are all driven by the hydraulic lifting system. Therefore, the quality of the forklift hydraulic lifting system directly affects the performance of the forklift. In the prior art, many hydraulic forklifts have poor maneuverability and lifting performance, resulting in potential safety hazards when moving goods, causing inconvenience to the work of moving goods, or affecting handling efficiency during handling.

Contents of the invention

The technical problem to be solved by the present invention is to provide a forklift structure with simple structure, reliable lifting when carrying goods, convenient operation and improved work efficiency in view of the deficiencies of the prior art.

To solve the technical problems described above, the technical solution adopted by the present invention is:

The present invention relates to a forklift structure, comprising a vehicle body, an outer mast, an inner mast, a lifting frame, and a plurality of forks for forklifting goods are arranged on the lifting frame, and the inner mast is movably embedded on the outer mast , the lifting frame is movably embedded on the inner mast, and the forklift structure also includes multiple sets of lifting components, each set of lifting components includes a lifting cylinder, a pulley, and a chain, and a pulley is installed on the upper part of each lifting cylinder One end of the lifting cylinder is connected to the lower end of the outer mast, the other end of the lifting cylinder is connected to the inner mast, one end of the chain is connected to the lifting frame, and the other end of the chain bypasses the pulley installed on the upper end of the lifting cylinder. The upper end of the outer mast is connected, and the lifting oil cylinder is connected with the control component for controlling the lifting of the lifting oil cylinder.

Preferably, the outer mast and the inner mast are both arranged in a square frame structure, and the front surfaces of the left longitudinal beam I and the right longitudinal beam I of the outer mast are respectively provided with recessed left sliding rails and right sliding rails. The left longitudinal beam II and the right longitudinal beam II of the inner mast are respectively provided with a plurality of rollers, and the left longitudinal beam II and the right longitudinal beam II of the inner mast are respectively embedded in the left longitudinal beam I through a plurality of rollers. and the left and right slide rails on the right longitudinal beam Ⅰ.

Preferably, the lifting parts include two groups, the lifting cylinders of the two groups of lifting parts are respectively fixedly connected with the left end and the right end of the lower end of the outer mast, and the two pulleys of the two groups of lifting parts are respectively connected with the two lifting cylinders. The upper end of the lifting cylinder is connected, one end of the two chains of the two sets of lifting parts is respectively connected with the left end of the lifting frame and the right end of the lifting frame, and the other ends of the two chains are respectively connected with the left and right ends of the upper end of the outer mast. Fixed connection, the upper ends of the two lifting oil cylinders are respectively connected with the left longitudinal beam II and the right longitudinal beam II through the connecting block.

Preferably, the control components include a controller, a hydraulic pump, and oil pipes, the hydraulic pump is connected to the controller that controls the start and stop of the hydraulic pump, the hydraulic pump is connected to the two lifting cylinders through two oil pipes, and the controller is arranged in the vehicle body on the console.

Preferably, the lifting frame is set as a square frame structure, and a plurality of L-shaped forks are arranged on the lifting frame, and the plurality of forks are connected with the lifting frame according to gaps, and each fork includes a body part and a transfer part , the body part of the fork is connected to the lifting frame, and the level of the front end of the transfer part of the transfer part is higher than that of the rear end of the transfer part.

Preferably, the two lifting cylinders respectively include a cylinder barrel, a piston, and a piston rod, and a control chamber is formed between the piston and the cylinder barrel, and the hydraulic pump communicates with the control chamber through an oil pipe.

Preferably, a fixed bracket is respectively arranged on the side of the left longitudinal beam I and the right longitudinal beam I of the outer mast, and the cylinder barrels of the two lifting cylinders respectively pass through the two fixed brackets and the left longitudinal beam of the outer mast. The side of the beam I is fixedly connected with the side of the right longitudinal beam I.

Adopt technical scheme of the present invention, can obtain following beneficial effect:

For the forklift structure of the present invention, when it is necessary to use the forklift structure to lift goods, the operator drives the hydraulic pump to work through the controller (there is an operating button on it), and the hydraulic pump goes down into the cavity through the oil pipe connected to the lower cavity of the cylinder. Applying force, at this moment, the piston pushes the piston rod to move upwards, and the whole lifting cylinder is elongated. At this time, the piston rod and the pulley installed on the piston rod move upward. Because one end of the chain is connected with the lifting frame, and the other end is connected with the outer mast, like this, the elongation of the lifting cylinder will drive the rise of the whole lifting frame, thereby driving the lifting of the cargo fork to complete the lifting of the goods. When it is necessary to use a forklift structure to remove goods from a high place, the raised fork is inserted into the bottom of the goods, and then the operator drives the hydraulic pump to work through the controller (with the control button on it), and the hydraulic pump passes through the upper cavity of the cylinder. The connected oil pipe exerts force in the upward cavity. At this time, the piston pushes the piston rod to move downward, and the whole lifting cylinder shrinks. At this time, the piston rod and the pulley installed on the piston rod move downward together. Because one end of the chain is connected with the lifting frame, and the other end is connected with the outer mast, like this, the contraction of the lifting cylinder will drive the decline of the whole lifting frame, thereby accomplishing the purpose of moving down the high place goods. The structure of the forklift described in the present invention is simple in structure and reliable in performance, and can be applied to the handling work of a large number of box-type goods. The invention adopts lifting and lowering components and control components to cooperate with components such as an outer mast and an inner mast, which can improve the maneuverability and bearing capacity of the forklift, reduce the labor intensity of operators, and ensure the safety of handling work.

Description of drawings

The following is a brief description of the contents expressed in the drawings of this manual and the marks in the drawings:

Fig. 1 is the front structural schematic diagram of the forklift structure of the present invention;

Fig. 2 is the sectional structural schematic diagram of the A-A plane of the forklift structure described in Fig. 1;

Fig. 3 is a schematic diagram of the connection structure of some parts of the forklift structure according to the present invention;

Marked in the accompanying drawings: 1. Connecting block; 2. Outer mast; 3. Inner mast; 4. Lifting frame; 5. Lifting and lowering parts; Control components; 10. Goods fork; 11. Left longitudinal beam Ⅰ; 12. Right longitudinal beam Ⅰ; 13. Left slide rail; 14. Right slide rail; 15. Left longitudinal beam Ⅱ; 16. Right longitudinal beam Ⅱ; 17. Roller; 18, controller; 19, hydraulic pump; 20, oil pipe; 21, console; 22, body part; 23, transfer part; 24, front end of transfer part; 25, rear end of transfer part; 26, fixed bracket .

detailed description

Below with reference to the accompanying drawings, through the description of the embodiments, the specific embodiments of the present invention, such as the shape, structure, mutual position and connection relationship between the various parts, the role and working principle of the various parts, etc., will be further described. Detailed instructions:

As shown in accompanying drawing 1-accompanying drawing 3, the present invention is a kind of forklift structure, comprises vehicle body 1, outer mast 2, inner mast 3, elevating frame 4, and elevating frame 4 is provided with a plurality of forklift cargo Fork 10, the inner mast 3 is movably embedded on the outer mast 2, and the lifting frame 4 is movably embedded on the inner mast 3. The forklift structure also includes multiple sets of lifting and lowering components 5, each set The lowering part 5 includes a lifting cylinder 6, a pulley 7, and a chain 8. A pulley 7 is respectively installed on the top of each lifting cylinder 6. One end of the lifting cylinder 6 is connected with the lower end of the outer mast 2, and the other end of the lifting cylinder 5 is connected to the lower end of the outer mast 2. The inner mast 3 is connected, one end of the chain 8 is connected with the lifting frame 4, the other end of the chain 8 bypasses the pulley 7 installed on the upper end of the lifting cylinder 6 and is connected with the upper end of the outer mast 2, and the lifting cylinder 6 is connected with the upper end of the outer mast 2. The control part 9 for controlling the lifting of the lifting cylinder 6 is connected.

Preferably, the outer mast 2 and the inner mast 3 are both arranged in a square frame structure, and the front surfaces of the left longitudinal beam I11 and the right longitudinal beam I12 of the outer mast 2 are respectively provided with recessed left slide rails 13 and right slide rail 14, a plurality of rollers 17 are arranged on the left longitudinal beam II 15 and the right longitudinal beam II 16 of the inner mast 3 respectively, and the left longitudinal beam II 15 and right longitudinal beam II 16 of the inner mast 3 pass through multiple The rollers 17 are embedded in the left slide rail 13 and the right slide rail 14 on the left longitudinal beam I11 and the right longitudinal beam I12.

Preferably, the lifting parts 5 include two groups, the lifting cylinders 6 of the two groups of lifting parts 5 are respectively fixedly connected with the left end and the right end of the lower end of the outer mast 2, and the two pulleys of the two groups of lifting parts 5 7 are respectively connected with the upper ends of the two lifting cylinders 6, one end of the two chains 8 of the two groups of lifting parts 5 is respectively connected with the left end of the lifting frame 4 and the right end of the lifting frame 4, and the other ends of the two chains 8 One end is fixedly connected to the left end and the right end of the upper end of the outer mast 2 respectively, and the upper ends of the two lifting cylinders 6 are connected to the left longitudinal beam II15 and the right longitudinal beam II16 through the connecting block 1 respectively.

Preferably, the control unit 9 includes a controller 18, a hydraulic pump 19, and an oil pipe 20. The hydraulic pump 19 is connected to the controller 18 that controls the start and stop of the hydraulic pump 19. The hydraulic pump 19 is connected to the two lifting pipes through two oil pipes 20 The oil cylinder 6 is connected, and the controller 18 is arranged on the console 21 in the vehicle body 1 .

Preferably, the lifting frame 4 is arranged as a square frame structure, and a plurality of L-shaped pallet forks 10 are arranged on the lifting frame 4, and the multiple pallet forks 10 are connected with the lifting frame 4 according to gaps, and each pallet fork 10 is Comprising a body part 22 and a transfer part 23 , the body part 22 of the fork 10 is connected to the lifting frame 4 , and the front end 24 of the transfer part 23 is higher in level than the rear end 25 of the transfer part.

Preferably, the two lifting cylinders 6 respectively include a cylinder barrel, a piston, and a piston rod, and a control chamber is formed between the piston and the cylinder barrel, and the hydraulic pump 19 communicates with the control chamber 29 through the oil pipe 20 .

Preferably, a fixed bracket 26 is respectively arranged on the side of the left longitudinal beam I11 and the right longitudinal beam I12 of the outer mast 2, and the cylinder tubes 26 of the two lifting cylinders 6 are respectively connected to the outer side by the two fixed brackets 26. The side of the left longitudinal beam I11 and the side of the right longitudinal beam I12 of the mast 2 are fixedly connected.

For the forklift structure described in the present invention, when it is necessary to use the forklift structure to lift goods, the operator drives the hydraulic pump 19 to work through the controller 18 (there is an operating button on it), and the hydraulic pump 19 passes through the oil pipe 20 connected to the lower cavity of the cylinder. Apply force in the downward chamber, at this moment, the piston pushes the piston rod to move upward, and the whole lifting cylinder 6 is elongated, at this time, the piston rod and the pulley 7 installed on the piston rod move upward. Since one end of the chain 8 is connected to the lifting frame 4 and the other end is connected to the outer mast 2, the elongation of the lifting cylinder 6 will drive the entire lifting frame 4 to rise, thereby driving the lifting of the fork 10 to complete the loading of the goods. lift handling. When it is necessary to use a forklift structure to remove goods from a high place, the raised fork 10 is inserted into the bottom of the goods, and then the operator drives the hydraulic pump 19 to work through the controller 18 (there is an operating button on it), and the hydraulic pump 19 passes through the cylinder. The oil pipe 20 connected to the upper chamber of the upper chamber applies force to the upper chamber. At this time, the piston pushes the piston rod to move downward, and the entire lifting cylinder 6 contracts. At this time, the piston rod and the pulley 7 installed on the piston rod move downward together. . Because one end of the chain 8 is connected with the lifting frame 4, and the other end is connected with the outer mast 3, like this, the shrinkage of the lifting cylinder 5 can drive the decline of the whole lifting frame 4, thereby accomplishing the purpose of removing the high place goods. The structure of the forklift described in the present invention is simple in structure and reliable in performance, and can be applied to the handling of a large number of box-type goods. The present invention adopts lifting and lowering components and control components to cooperate with components such as the outer mast and the inner mast, and can improve the forklift's performance. Manipulative and bearing capacity, while reducing the labor intensity of operators, ensure the safety of handling work.

The present invention has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above-mentioned manner, as long as various improvements are adopted in the method concept and technical solutions of the present invention, or the present invention is converted without improvement. The ideas and technical solutions of the invention that are directly applied to other occasions are within the protection scope of the present invention.

Claims (1)

1. A forklift structure, comprising a body, an outer mast (2), an inner mast (3), a lifting frame (4), and a plurality of forks (10) for forklifting goods are arranged on the lifting frame (4) , the inner mast (3) is movably embedded on the outer mast (2), the elevating frame (4) is movably embedded on the inner mast (3), and the forklift structure also includes multiple sets of lifting components (5), each set of lifting parts (5) includes a lifting cylinder (6), a pulley (7), and a chain (8), and a pulley (7) is installed on the upper part of each lifting cylinder (6), and the lifting One end of the oil cylinder (6) is connected with the lower end of the outer mast (2), the other end of the lifting cylinder (6) is connected with the inner mast (3), one end of the chain (8) is connected with the lifting frame (4), and the chain (8) The other end bypasses the pulley (7) installed on the upper end of the lifting cylinder (6) and then connects with the upper end of the outer mast (2). The lifting cylinder (6) is connected to the lifting cylinder (6) The control part (9) is connected; The outer mast (2) and the inner mast (3) are both arranged in a square frame structure, the front surface of the left longitudinal beam I (11) and the front surface of the right longitudinal beam I (12) of the outer mast (2) Recessed left slide rails (13) and right slide rails (14) are respectively arranged on the top, and multiple rollers (17) are respectively arranged on the left longitudinal beam II (15) and the right longitudinal beam II (16) of the inner door ), the left longitudinal beam II (15) and the right longitudinal beam II (16) of the inner mast (3) are respectively embedded in the left longitudinal beam I (11) and the right longitudinal beam I through a plurality of rollers (17) The left slide rail (13) and the right slide rail (14) on (12); the lifting parts (5) include two groups, and the lifting cylinders (6) of the two groups of lifting parts (5) are respectively connected with the outer The left end and the right end of the lower end of the mast (2) are fixedly connected, and the two pulleys (7) of the two sets of lifting parts (5) are respectively connected with the upper ends of the two lifting cylinders (6), and the two sets of lifting parts ( 5) One ends of the two chains (8) are respectively connected with the left end of the lifting frame (4) and the right end of the lifting frame (4), and the other ends of the two chains (8) are respectively connected with the upper end of the outer mast (2) The left end and right end of the upper part are fixedly connected, and the upper ends of the two lifting cylinders (6) are respectively connected with the left longitudinal beam II (15) and the right longitudinal beam II (16) through the connecting block (1); It is characterized in that: the control part (9) includes a controller (18), a hydraulic pump (19), an oil pipe (20), a hydraulic pump (19) and a controller (18) for controlling the start and stop of the hydraulic pump (19) connection, the hydraulic pump (19) is connected to the two lifting cylinders (6) through two oil pipes (20), and the controller (18) is set on the console (21) in the vehicle body (1); The lifting frame (4) is set as a square frame structure, and a plurality of L-shaped cargo forks (10) are arranged on the lifting frame (4), and the plurality of cargo forks (10) are connected with the lifting frame (4) according to gaps , each fork (10) includes a body part (22) and a transfer part (23), the body part (22) of the fork (10) is connected with the lifting frame (4), and the transfer part (23) The front end (24) of the transfer section is higher in level than the rear end (25) of the transfer section; A fixed bracket (26) is respectively arranged on the side of the left longitudinal beam I (11) and the right longitudinal beam I (12) of the outer mast (2), and the cylinder barrels of the two lifting cylinders (6) ( 26) are fixedly connected to the side of the left longitudinal beam I (11) and the side of the right longitudinal beam I (12) of the outer mast (2) through two fixed brackets (26) respectively.