CN204873626U - Caterpillar crane of integration installation, transportation becomes width of cloth auxiliary - Google Patents

Abstract

The utility model discloses an integrated installation and transportation luffing jib of a crawler crane, which comprises a main jib, a luffing jib, a luffing jib front bracket, a luffing jib rear bracket, a luffing steel wire rope, and a luffing jib. The jib pull plate and the anti-backward device also include a connecting arm head, the front bracket of the luffing jib is hinged with the bottom section arm of the luffing jib, and the rear bracket of the luffing jib is hinged with the connecting arm head, so One end of the connecting arm head is hinged with the main boom, and the other end is hinged with the bottom joint arm of the luffing jib. The utility model has a compact structure, and can realize the integral disassembly and assembly of the bottom section arm of the luffing jib, the front bracket of the luffing jib, the rear bracket of the luffing jib, the connecting arm head, the anti-tilt device and part of the luffing jib pull plate, There is no need for step-by-step disassembly and step-by-step high-altitude operations, which improves the efficiency and safety of disassembly and assembly; at the same time, it can realize overall transportation, and the transportation size and transportation weight meet the requirements of national transportation regulations, saving transportation vehicles, saving transportation costs, and good economy .

Description

A crawler crane luffing jib with integrated installation and transportation

technical field

The utility model relates to a luffing jib of a crawler crane integrated with installation and transportation, which belongs to the field of engineering machinery.

Background technique

With the acceleration of my country's urbanization process and rapid economic development, the scale of national infrastructure is getting larger and larger, and the weight and lifting height of items that need to be hoisted are getting larger and larger. Crawler cranes are showing their superiority more and more. Crawler cranes have developed rapidly. In order to increase their lifting height and working range, crawler cranes are usually designed to install luffing jibs.

Due to the limitation of transportation size and transportation weight, crawler cranes often need to be disassembled before and after operation. The detachable components of the crawler crane in the working condition of the luffing jib are shown in Figure 1, mainly consisting of the main jib 1, the luffing jib 2, the luffing jib front bracket 3, the luffing jib rear bracket 4, the luffing jib Wide wire rope 5, luffing jib pull plate 6 and anti-backward device 7.

During installation, first connect the main jib 1 with the luffing jib 2, then connect the luffing jib front bracket 3 with the luffing jib 2, and finally connect the luffing jib rear bracket 4 with the main jib Arm 1 is connected. After the jib assembly is completed, the luffing jib front bracket 3 and the luffing jib rear bracket 4 head pulleys need to be wound between the luffing jib front bracket 3 and the luffing jib rear bracket 4. Pave the luffing jib pull plate 6, and finally install the anti-rolling device 7; in reverse, dismantle each component into a separate whole in turn; during transportation, each component needs to be disassembled into a separate whole, and each component is loaded separately transportation.

When the crawler crane needs to use the luffing jib working condition, it needs to complete the installation of the main jib connecting section, the luffing jib bottom section, the luffing jib front bracket, the luffing jib rear bracket, and the luffing and luffing rope. The operation is cumbersome, the efficiency is low, and the staff need to work on the truss arm at a position of two meters or higher, which makes the disassembly operation dangerous; during transportation, all components need to be dismantled and transported separately, which brings a lot of transportation However, transportation costs have also increased significantly.

Utility model content

In order to solve the above-mentioned technical problems, the utility model provides a crawler crane luffing jib integrated with installation and transportation.

In order to achieve the above object, the technical solution adopted in the utility model is:

A crawler crane luffing jib integrated for installation and transportation, including a main boom, a luffing jib, a luffing jib front support, a luffing jib rear support, a luffing steel wire rope, and a luffing jib pull plate and the anti-back tilting device, further comprising a connecting arm head, the front bracket of the luffing jib is hinged with the bottom section arm of the luffing jib, the rear bracket of the luffing jib is hinged with the connecting arm head, and the connecting arm head One end is hinged with the main boom, and the other end is hinged with the bottom jib of the luffing jib.

The connecting arm head is a space steel pipe truss structure.

The space steel pipe truss structure is a triangular column.

The luffing jib front bracket and the pulley block at the head of the luffing jib rear bracket are wound with luffing wire ropes.

The anti-backward device is arranged between the rear support of the luffing jib and the main boom.

Several lifting points are arranged on the luffing jib.

The beneficial effects achieved by the utility model: the utility model has a compact structure, and can realize the bottom section arm of the luffing jib, the front bracket of the luffing jib, the rear bracket of the luffing jib, the connecting arm head, the anti-tilt device and some variable The overall disassembly and assembly of the jib pull plate does not require step-by-step disassembly and step-by-step high-altitude operations, which improves the efficiency and safety of disassembly; at the same time, it can realize overall transportation, and the transportation size and transportation weight meet the requirements of national transportation regulations, saving transportation Vehicles save transportation costs and are economical.

Description of drawings

Fig. 1 is a schematic structural diagram of a conventional luffing jib.

Fig. 2 is a structural schematic diagram of the utility model.

Figure 3 is a schematic diagram of the structure of the connecting arm head.

Figure 4 is a schematic diagram of the disassembled structure.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described. The following examples are only used to illustrate the technical solution of the utility model more clearly, but not to limit the protection scope of the utility model.

As shown in Figure 2, a crawler crane luffing jib for integrated installation and transportation includes a main jib 1, a luffing jib 2, a luffing jib front bracket 3, a luffing jib rear bracket 4, Luffing steel wire rope 5, luffing jib pull plate 6, anti-backward device 7 and connecting arm head 8.

The front bracket 3 of the luffing jib is hinged with the bottom section of the luffing jib 2, the rear bracket 4 of the luffing jib is hinged with the connecting arm head 8, one end of the connecting jib head 8 is hinged with the main boom 1, and the other end is connected with the variable The bottom section of the jib 2 is hinged. In order to facilitate lifting, a number of lifting points are arranged on the luffing jib. The luffing jib front bracket 3 and the luffing jib rear bracket 4 are wound between the pulley blocks at the head of the luffing jib front bracket 4. The anti-rolling device 7 is arranged between the rear support 4 of the luffing jib and the main boom 1 .

As shown in FIG. 3 , the connecting arm head 8 is a space steel pipe truss structure, and the space steel pipe truss structure is a triangular column.

When disassembling the luffing jib of the above-mentioned integrated installation and transportation of the crawler crane, the luffing jib 2 bottom section arm, the luffing jib front bracket 3, the luffing jib rear bracket 4, the luffing wire rope 5, the luffing jib The jib pull plate 6, the anti-backward device 7 and the connecting jib head 8 are disassembled from the main jib 1 as a whole, and the auxiliary steel wire rope 9 is used to wind the head pulley block of the front bracket 3 of the luffing jib and the rear bracket 4 of the luffing jib Just above, as shown in Figure 4.

During installation, the luffing jib 2 bottom section arm, the luffing jib front bracket 3, the luffing jib rear bracket 4, the luffing wire rope 5, the luffing jib pull plate 6, the anti-tilt device 7 and the connecting arm The head 8 is installed on the main jib 1 as a whole, and the luffing wire rope 5 can be put on. Because of having adopted auxiliary wire rope 9 to be wound between the block of pulleys in advance, so can use rope winch to wear and wind luffing wire rope 5 as traction.

The integrated installation and transportation luffing jib of the crawler crane has a compact structure, and can realize the bottom section arm of the luffing jib, the front support of the luffing jib, the rear support of the luffing jib, the connecting arm head, the anti-tilt device and Part of the luffing jib pull plate is disassembled as a whole, without step-by-step disassembly and step-by-step high-altitude operations, which improves the efficiency and safety of disassembly; at the same time, it can realize overall transportation, and the transportation size and transportation weight meet the requirements of national transportation regulations. It saves transportation vehicles, saves transportation costs, and is economical.

The above is only the preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the utility model, some improvements and deformations can also be made. And deformation should also be regarded as the protection scope of the present utility model.

Claims (6)

1. the crawler crane variable-amplitude auxiliary arm of an integrative installation technology, transport, comprise main crane arm, variable-amplitude auxiliary arm, variable-amplitude auxiliary arm front frame, variable-amplitude auxiliary arm after poppet, variable-amplitude steel wire rope, variable-amplitude auxiliary arm arm-tie and anti-squat system, it is characterized in that: also comprise connection arm head, described variable-amplitude auxiliary arm front frame and variable-amplitude auxiliary arm coxopodite arm hinged, described variable-amplitude auxiliary arm after poppet is with to be connected arm head hinged, and one end and the main crane arm of described connection arm head are hinged, the other end and variable-amplitude auxiliary arm coxopodite arm hinged.

2. the crawler crane variable-amplitude auxiliary arm of a kind of integrative installation technology according to claim 1, transport, is characterized in that: described connection arm head is spatial steel tube-truss structure.

3. the crawler crane variable-amplitude auxiliary arm of a kind of integrative installation technology according to claim 2, transport, is characterized in that: described spatial steel tube-truss structure is triangulo column.

4. the crawler crane variable-amplitude auxiliary arm of a kind of integrative installation technology according to claim 1, transport, is characterized in that: be wound around variable-amplitude steel wire rope between the assembly pulley of described variable-amplitude auxiliary arm front frame and variable-amplitude auxiliary arm after poppet head.

5. the crawler crane variable-amplitude auxiliary arm of a kind of integrative installation technology according to claim 1, transport, is characterized in that: described anti-squat system is arranged between variable-amplitude auxiliary arm after poppet and main crane arm.

6. the crawler crane variable-amplitude auxiliary arm of a kind of integrative installation technology according to claim 1, transport, is characterized in that: described variable-amplitude auxiliary arm is provided with some suspension centres.