CN218345027U

CN218345027U - Fixed single-arm hydraulic crane

Info

Publication number: CN218345027U
Application number: CN202222223011.9U
Authority: CN
Inventors: 付丽; 陈佳乐; 刘佳音
Original assignee: Tianjin University of Technology
Current assignee: Tianjin University of Technology
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2023-01-20
Anticipated expiration: 2032-08-23

Abstract

The utility model relates to a fixed single armed hydraulic crane, including davit, pivot, oblique pull rod, master cylinder, rotatory hydro-cylinder group and frame etc. 180 degrees rotary mechanism of bi-cylinder are installed to rotatory hydro-cylinder group, and its full load effective work angle is 74 degrees, the master cylinder is double ears ring engineering pneumatic cylinder, the frame bottom is fixed in the below ground with the concrete. The utility model has the advantages of easy operation, compact structure, take up an area of fewly. In the manufacturing and debugging of the automobile mould, the crane and the crown block are matched with each other, so that the expected purpose can be safely and reliably achieved.

Description

Fixed single-arm hydraulic crane

Technical Field

The utility model relates to a hoisting equipment field. In particular to a fixed single-arm hydraulic crane.

Background

The automobile mould is a large mould, the length and the width of the mould can reach more than four meters, and the weight of the mould can reach dozens of tons. The die consists of an upper die and a lower die, wherein the upper die needs to be frequently lifted and turned in the manufacturing and debugging process of the die, and is turned and lifted back for assembly after being trimmed by processes such as grinding and the like. The original method for turning over the upper die is to hoist the upper die by using a crown block, then turn over the upper die by using a manual hoist, and hoist the upper die again after turning over, or to realize turning over of the upper die of the die by using the crown block and the manual hoist in cooperation. Thus, the labor intensity of the operation is high, and the operation is complicated.

Disclosure of Invention

The utility model discloses the purpose is overcome the background art not enough, provides one and is fixed in ground hydraulic drive single armed hoist, only needs to have an overhead traveling crane in the workshop, when just can accomplishing mould manufacturing and debugging, goes up the repetitious lifting and the upset of mould, and equipment drops into for a short time, compact structure, and easy operation is convenient.

The utility model discloses a realize through following technical scheme:

the utility model provides a fixed single armed hydraulic crane, includes davit, pivot, diagonal draw bar, master cylinder, rotatory hydro-cylinder group and frame, 180 degrees rotary mechanism of double-cylinder are installed to rotatory hydro-cylinder group, and its full load effective working angle is 74 degrees.

Further, the master cylinder is a double lug ring engineering hydraulic cylinder.

Further, the bottom of the machine base is fixed below the ground by concrete.

The utility model has the advantage of the utility model is simple in operation, compact structure, occupation of land are few, in the manufacturing and the debugging of automobile mold, mutually support with a overhead traveling crane, and equipment drops into fewly, can safe and reliable reach anticipated purpose.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic diagram of a steel structure of the boom;

FIG. 3 is a schematic view of the spindle assembly.

FIG. 4 is a block diagram of a rotary cylinder group;

FIG. 5 is a view of the structure of the rotary cylinder group;

in the figure: 1-a main boom; 2-a draw bar distribution frame; 3-a rotating shaft assembly; 4-diagonal draw bars; 5-a master cylinder; 6-rotating the oil cylinder group; 7-I steel big base; 8-main vertical shaft; 9-boom shaft; 10-large pulling plate; 11-cylinder shaft; 12-upper shaft sleeve; 13-a sliding bearing; 14-lower shaft sleeve; 15-main shaft round seat; 16-a push rod; 17-oil cylinder; 18-a drive rod; 19-oil cylinder; a-a rotating shaft; b-a rotating shaft; c-a rotating shaft; d-a rotating shaft; g-a rotating shaft; f-pushing one end of the rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the invention.

Referring to fig. 1 to 5, a fixed single-arm hydraulic crane is composed of a boom 1, a rotating shaft 3, a diagonal draw bar 4, a main cylinder 5, a rotary cylinder group 6, and a machine base 7. The rotating shaft 3 supports the suspension arm 1, the suspension arm 1 is further supported by the main oil cylinder 5, the rotating shaft 3 rotates when working, and the two bronze sliding bearings 13 are arranged and lubricated by grease.

The crane is provided with a rotary oil cylinder group 6 which can rotate the mechanism by 180 degrees, and the effective working angle of the full load is 74 degrees. The master cylinder 5 is a double lug ring engineering hydraulic cylinder. The bottom of the base 7 is fixed under the ground by concrete.

The working process of the single-arm hydraulic crane comprises the following steps:

the machine can work normally only by being provided with a special hydraulic station and a hydraulic control system.

As shown in fig. 1 and 2, when a heavy object is hung on the weighing machine, the hydraulic system is operated to supply oil to the main oil cylinder 5, so that a piston rod of the main oil cylinder 5 extends out, the piston rod pushes the main boom 1 to lift upwards, and the heavy object rises. When the heavy object is required to descend, the hydraulic system is operated to supply oil to the main oil cylinder 5 in the opposite direction, so that the piston rod of the main oil cylinder 5 retracts, and the heavy object descends.

As shown in the rotating shaft assembly of FIG. 3, the main boom 1 and the main cylinder 5 are connected with the large pulling plate 10 through the boom shaft 9 and the cylinder shaft 11. The boom 1 can be driven in rotation supported by the main vertical shaft 8 and the slide bearing 13.

By adopting the structure shown in fig. 4 and 5, the two oil cylinders can realize 180-degree rotation by adopting a mode of connecting rods in series. In the figure, a rotating shaft A of an oil cylinder 19 is a fixed shaft, a rod 18 is driven through a rotating shaft B, a rotating shaft G is coaxial with a main vertical shaft 8, one end F of a push rod is fixed on the main vertical shaft 8, and the oil cylinder 19 can push the drive rod 18 to rotate by about 90 degrees. The oil cylinder 17 pushes the rod 16 through the rotating shaft D with the rotating shaft C as a base point, and the oil cylinder 17 can rotate the rod 16 by about 90 degrees. Therefore, the two oil cylinders work in full stroke, the push rod 16 can rotate by about 180 degrees, the push rod 16 is fixedly connected with the main vertical shaft 8, and 180-degree rotation of the suspension arm 1 is realized.

When the crane needs to rotate, the hydraulic system supplies oil to the

oil cylinders

19 and 17 at the same time, and piston rods of the two oil cylinders extend out at the same time to push the main vertical shaft 8 and the suspension arm 1 to rotate by 180 degrees at most. Similarly, the oil supply to the two

oil cylinders

19 and 17 in the reverse direction can push the main vertical shaft 8 and the suspension arm 1 to rotate in the reverse direction by 180 degrees at most. The oil paths of the two oil cylinders are connected in parallel, so that the two oil cylinders can work synchronously or successively during oil supply, and the rotation of the suspension arm 1 is not influenced.

The foregoing is only a preferred embodiment of the present invention and is not to be considered as limiting, since any modifications, equivalent alterations and improvements made within the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims

1. The utility model provides a fixed single armed hydraulic crane, includes davit, pivot, diagonal draw bar, master cylinder, rotatory hydro-cylinder group and frame, its characterized in that: the rotary oil cylinder group is provided with a double-oil-cylinder 180-degree rotary mechanism, and the effective working angle of the full load is 74 degrees.

2. A fixed single-arm hydraulic crane according to claim 1, characterized in that: the main oil cylinder is a double-lug ring engineering hydraulic cylinder.

3. A fixed single-arm hydraulic crane according to claim 1, characterized in that: the bottom of the machine base is fixed below the ground through concrete.