CN202575892U - Wide-view three-joint working device for forklift - Google Patents

Abstract

The utility model discloses a three-section working device of a wide-view forklift, which comprises an outer mast, a middle mast, an inner mast, a rear lifting oil cylinder assembly, a cargo fork frame, a cargo fork and two sets of sprocket chain assemblies. The bottom end of the lifting cylinder assembly is connected with the bottom plate in the outer mast, and the upper end of the rear lifting cylinder assembly is connected with the cylinder head seat in the inner mast; the rear chain assembly in the two sets of sprocket chain devices, one end It is connected with the chain seat on the outer mast, the chain goes around the sprocket wheel in the beam assembly on the middle mast, and the other end is fixed on the chain seat of the inner mast. Under the requirements of ensuring the same lifting height, the length of the channel steel of the gantry frame is shorter than that of the ordinary two-section gantry channel steel; compared with the ordinary three-stage full-free lifting system, the lifting system saves The front lifting oil cylinder is added, the visual space inside the mast is reserved, and a good visual range is reserved for the forklift operator, which is convenient for operation and improves the safety during operation.

Description

A three-section working device of a wide-view forklift

technical field

The utility model relates to a lifting system device of a forklift, in particular to a lifting working device of a three-section door frame of a forklift with a wide field of vision.

Background technique

The forklift working device is the direct working mechanism for the forklift to carry out loading and unloading operations. The fork picking and unloading of goods, lifting and stacking are all completed by the working device, so the working device of the forklift is one of the important components of the forklift.

Forklifts need to enter warehouses, containers and other spaces with height restrictions to operate. Forklifts are required to pass through low warehouse or container doors and lift goods to more than 4 meters after passing through the doors. Free working device, it needs to increase a front lifting cylinder and a moving pulley block, makes cost increase.

When the user only needs to meet the needs of the container shipping forklift or the low space for passing through, and does not need to perform high-level operation in the low space, the high-level operation of the three-level full-free working device does not change the height of the vehicle. Function becomes superfluous, a kind of waste.

Traditional forklift lifting systems are mainly divided into three types: two-stage standard lifting system, two-stage full free lift system, and three-stage full free lift system. With the rapid development of the market economy, more and more handling and stacking operations are required to be completed in narrow and short spaces, which requires the forklift lifting system to be as short as possible while reaching the required lifting height. High mast height and good field of view, operating performance. At the same time, with the increasingly fierce market competition, while meeting product performance requirements, reducing product manufacturing costs has become a key point to increase market competitiveness.

Although the existing lifting systems on the market can meet the requirements of the lifting height, there are other deficiencies and defects: the two-section standard lifting system, when the lifting height requirements are met, the overall height of the gantry floor is relatively high, which is difficult to meet Meet the requirements of narrow and short warehouse doors; when the two-stage full-free lifting system meets the lifting height requirements, the total floor height of the mast is also larger than that of the three-stage full-free lifting system. At the same time, the existence of the front lifting cylinder prevents Most of the vision directly in front of the driver is extremely unfavorable to the operation; when the three-stage full-free lifting system reaches the lifting height requirement, although it has a small full-height size of the mast, it is also due to the existence of the front lifting cylinder. The driver's field of vision is blocked, which is easy to cause inconvenient operation and cause danger.

Utility model content

The technical problem solved by the utility model is to provide a three-section gantry lifting working device with a wide field of view.

For solving the problems of the technologies described above, the technical scheme of the utility model is as follows:

A three-section mast lifting device for a wide-view forklift, including an outer mast, a middle mast, an inner mast, a rear lifting cylinder assembly, a fork frame, a fork, and two sets of sprocket chain assemblies. The bottom end of the lifting oil cylinder assembly is connected with the bottom plate in the outer mast, and the upper end of the rear lifting oil cylinder assembly is connected with the cylinder head seat in the inner mast; The chain seats on the outer mast are connected, the chain goes around the sprocket in the upper beam assembly of the middle mast, and the other end is fixed on the chain seat of the inner mast, the front chain assembly in the two sets of sprocket chain assemblies, One end is connected with the chain seat on the middle mast, the chain goes around the sprocket wheel in the beam assembly on the inner mast, and the other end is fixed on the fork frame hanging chain plate.

Compared with the prior art, the utility model has the beneficial effects of:

Under the requirements of ensuring the same lifting height, the length of the channel steel of the gantry is shorter than that of the ordinary two-section gantry lifting system; compared with the ordinary three-stage full free lifting system, the lifting The system omits the front lifting cylinder, retains the visual space inside the mast, and reserves a good visual range for the forklift operator, which is convenient for operation and improves the safety during operation.

Description of drawings

Fig. 1 is a schematic diagram of assembly and disassembly of the utility model.

Fig. 2 is a schematic diagram of assembly and disassembly of the utility model.

Fig. 3 is an assembly exploded schematic diagram of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Referring to Figures 1 to 3, a three-section mast lifting device for a wide-view forklift shown includes an outer mast 1, a middle mast 2, an inner mast 3, a rear lifting cylinder assembly 4, and a fork frame 5. Goods fork 6 and two sets of sprocket chain assemblies, the bottom end of the rear lifting cylinder assembly 4 is connected with the bottom plate 7 in the outer mast 1, the upper end of the rear lifting cylinder assembly 4 is connected with the bottom plate in the inner mast 3 The cylinder head seat 8 is connected; one end of the rear chain assembly 9 in the two sets of sprocket chain assemblies is connected with the chain seat 10 on the outer mast 1, and the chain bypasses the chain in the beam assembly on the middle mast 2. Wheel 11, the other end goes around the sprocket 11 in the middle door frame 2 and is connected with the chain hanging plate 12 in the inner door frame 3, the front chain assembly 13 in the two groups of sprocket chain assemblies, one end is connected with the middle door frame The chain seat 10 on the 2 is connected, and the chain walks around the sprocket wheel 11 in the beam assembly on the inner door frame 3, and the other end is fixed on the fork frame 5 hanging chain plates 14.

What shown in Fig. 4 is exactly the overall structure schematic diagram of the present utility model.

Claims (2)

1. A three-section working device for a wide-view forklift, including an outer mast, a middle mast, an inner mast, a rear lifting cylinder assembly, a fork frame, a fork, and two sets of sprocket chain assemblies, characterized in that: The bottom end of the rear lifting oil cylinder assembly is connected with the bottom plate in the outer mast, and the upper end of the rear lifting oil cylinder assembly is connected with the cylinder head seat in the inner mast. 2. The three-section working device of a wide-view forklift according to claim 1, wherein one end of the rear chain assembly in the two sets of sprocket chain devices is connected to the chain seat on the outer mast, and the chain is wound around The other end of the sprocket in the beam assembly on the middle mast is fixed on the chain seat of the inner mast, and the front chain assembly in the two sets of sprocket chain assemblies is connected with the chain seat on the middle mast at one end. The chain goes around the sprocket wheel in the beam assembly on the inner mast, and the other end is fixed on the fork frame hanging chain plate. the

Images