CN206590786U - A kind of truck-mounted crane mechanism of small transporting vehicle - Google Patents

Abstract

The utility model discloses a vehicle-mounted crane mechanism of a small transport vehicle, which comprises a slewing support, a large arm, a pitch arm, a telescopic arm, a hydraulic cylinder connection device and a hook. The boom is arranged on the slewing bearing; the boom and the pitching arm are connected by a pin shaft, and a pitching hydraulic cylinder is connected between the boom and the pitching arm; a telescopic arm is arranged inside the pitching arm, and the telescoping arm One end is provided with a hook, and the telescopic arm and the pitching arm can slide relatively; the side of the pitching arm is provided with a mounting seat; the outer side of the pitching arm is equipped with a hydraulic cylinder connecting device, and the hydraulic cylinder connecting device includes a hydraulic cylinder connecting frame And the guide roller arranged on it, the hydraulic cylinder connecting frame is provided with a front end flange type hydraulic cylinder, a rear end flange type hydraulic cylinder, the piston rod of the front end flange type hydraulic cylinder is connected to the side of the pitch arm On the mounting seat, the piston rod of the rear-end flanged hydraulic cylinder is connected to the front end of the telescopic arm. The utility model has the advantages of simple structure, convenient operation, low manufacturing cost and high loading and unloading efficiency.

Description

A car-mounted crane mechanism for a small transport vehicle

technical field

The utility model belongs to the technical field of hoisting, and relates to a vehicle-mounted crane mechanism of a small transport vehicle.

Background technique

At present, many small transport vehicles need workers to load and unload goods. Manual loading and unloading of goods is inefficient and prone to safety accidents. For heavier goods, additional lifting equipment is needed to complete the loading and unloading of goods, which increases the transportation cost. The truck-mounted cranes of large-scale transport vehicles on the market now have high manufacturing costs, complex structures, and large volumes, while the size of the boom required by the truck-mounted cranes of small transport vehicles is relatively small, and it is impossible to completely use the truck-mounted structures of large transport vehicles. hanging mechanism. Therefore, it is necessary to design a vehicle-mounted crane mechanism of a small transport vehicle with a simple structure and low cost.

Contents of the invention

In order to improve the cargo loading and unloading efficiency of the small transport vehicle, the utility model provides a vehicle-mounted crane mechanism of the small transport vehicle.

The technical scheme adopted by the utility model is: a vehicle-mounted crane mechanism of a small transport vehicle, the telescopic mechanism is composed of a pitch arm, a telescopic arm, and a hydraulic cylinder connection device; the outside of the pitch arm is provided with a hydraulic cylinder connection device, and the hydraulic pressure The cylinder connection device can move relative to the pitch arm; the hydraulic cylinder connection device includes a hydraulic cylinder connection frame, a guide roller, a front flange type hydraulic cylinder, and a rear end flange type hydraulic cylinder. There is a guide roller, the guide roller can rotate relative to the hydraulic cylinder connection frame, the guide roller is provided with bosses on both sides of the axial direction, and the guide roller is respectively clamped on the upper and lower surfaces of the pitch arm to limit the axial movement of the guide roller The left and right sides of the hydraulic cylinder connecting frame are respectively provided with a front-end flanged hydraulic cylinder and a rear-end flanged hydraulic cylinder, and the cylinder bodies of the front and rear flanged hydraulic cylinders are rigidly connected with the hydraulic cylinder connecting frame. The piston rod of the rear end flange type hydraulic cylinder is rigidly connected with the pitch arm and the telescopic arm respectively.

Due to the adoption of the above technical solution, the beneficial effects of the utility model are: the utility model is simple in structure, easy to assemble, convenient to operate, low in manufacturing cost, and high in loading and unloading efficiency.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 and Fig. 3 are structural schematic diagrams of the hydraulic cylinder connecting device of the present invention.

Among them, 1. Slewing bearing; 2. Boom; 3. Pitch arm; 4. Hydraulic cylinder connection device; 5. Rear end flange type hydraulic cylinder; 6. Hook; 7. Telescopic arm; 8. Front end flange type Hydraulic cylinder; 9, mounting base; 10, pitch hydraulic cylinder; 401, hydraulic cylinder connecting frame; 402, guide roller.

detailed description

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

As shown in FIGS. 1 to 3 , a vehicle-mounted crane mechanism for a small transport vehicle includes a slewing support 1 , a boom 2 , a pitch arm 3 , a telescopic arm 7 , a hydraulic cylinder connection device 4 , and a hook 6 . The boom 2 is arranged on the slewing bearing 1; the boom 2 and the pitch arm 3 are connected by a pin shaft, and a pitch hydraulic cylinder 10 is connected between the boom 2 and the pitch arm 3; the pitch arm 3 The inner side is provided with a telescopic arm 7, and one end of the telescopic arm 7 is provided with a suspension hook 6, and the telescopic arm 7 and the pitch arm 3 can slide relatively; the side of the pitch arm 3 is provided with a mount 9; There is a hydraulic cylinder connecting device 4, and the hydraulic cylinder connecting device 4 includes a hydraulic cylinder connecting frame 401 and a guide roller 402 arranged on it, and the hydraulic cylinder connecting frame 401 is provided with a front flange type hydraulic cylinder 8, a rear end Flange hydraulic cylinder 5, the piston rod of the front flange hydraulic cylinder 8 is connected to the mounting seat 9 on the side of the pitch arm 3, and the piston rod of the rear flange hydraulic cylinder 5 is connected to the telescopic arm 7 front end.

The working principle of the utility model is roughly as follows: when loading and unloading goods on a small transport vehicle, the worker can adjust the rotation angle of the slewing bearing 1 according to the placement position of the hoisting goods, and adjust the extension length of the piston rod of the pitching hydraulic cylinder 10 to adjust the Pitch angle of pitch arm 3. According to the distance of the goods from the small transport vehicle, you can choose to only let the piston rod of the front flange hydraulic cylinder 8 or the rear flange hydraulic cylinder 5 stretch out, or the front flange hydraulic cylinder 8 and the rear flange hydraulic cylinder The piston rod of cylinder 5 all stretches out. When the piston rod of the front-end flanged hydraulic cylinder 8 stretches, it drives the hydraulic cylinder connection device 4, the rear-end flanged hydraulic cylinder 5 and the telescopic arm 7, and moves together under the guidance of the guide roller 402, realizing telescopic Telescopic action of the arm 7. Thereby allow suspension hook 6 to reach predetermined hoisting position.

The specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Claims (1)

1. a kind of truck-mounted crane mechanism of small transporting vehicle, its telescoping mechanism is by pitch arm, telescopic arm, connecting device of hydraulic cylinder group Into；Connecting device of hydraulic cylinder is provided with the outside of the pitch arm, connecting device of hydraulic cylinder can be moved relative to pitch arm；The liquid Cylinder pressure attachment means include hydraulic cylinder link, guide roller, front end flange formula hydraulic cylinder, rear end flange form hydraulic cylinder, the liquid Both sides are each provided with a guide roller above and below cylinder pressure link, and guide roller can be rotated relative to hydraulic cylinder link, are oriented to roll shaft Both sides are provided with boss, is directed to roller and is stuck on the upper and lower surface of pitch arm, restricted guidance roller is axially movable；Institute State the hydraulic cylinder link left and right sides and be respectively arranged with front end flange formula hydraulic cylinder and rear end flange form hydraulic cylinder, forward and backward hold-carrying The cylinder body of blue formula hydraulic cylinder is rigidly connected with hydraulic cylinder link, the piston rod of front and back ends flange form hydraulic cylinder respectively with pitching Arm, telescopic arm are rigidly connected.