CN201574048U - Crawler crane with lateral reinforcing structure - Google Patents

Abstract

A crawler crane with a lateral reinforcing structure. The crane comprises a crane body, an arm support connected with a rotating shaft of the crane body, a super-lift mast and a mast, wherein a front inhaul cable is connected between the top end of the arm support and the top end of the super-lift mast; the transverse beams are connected between the super-lift masts in each group, the supporting beams are connected between the top ends of the masts in each group, and the main amplitude ropes are connected to the supporting beams. The lateral stability is enhanced, and meanwhile, the structure of the whole machine is simplified, the material consumption is less, the self weight of the equipment is light, the transportation is convenient, the design cost is low, and the manufacturing cost is low.

Description

Crawler cranes with lateral reinforcement

technical field

The utility model relates to a crane, in particular to a crawler crane with a lateral reinforcement structure.

Background technique

At present, the lifting capacity of crawler cranes has exceeded 1,000 tons, and the length of the jib is more than 100 meters. The pin shaft is connected with a front stay cable, the back stay cable is connected between the superlift mast top and the mast top through the pin shaft, and the main luffing rope is connected between the mast top and the crane body. The above-mentioned super-lifting mast, mast, front stay cable, and back stay cable are a group and are located on the symmetrical center plane of the crane body and the jib. The crawler crane with this structure has poor lateral stability during work. In order to enhance the lateral stability, some booms are designed as a double-parallel or "H"-shaped structure, and some booms are designed as a double-intersecting or "A"-shaped structure. Because two sets of booms are used, the material consumption is high, the processing cost is high, and the design tends to be complicated.

Contents of the invention

The purpose of the utility model is to provide a crawler crane with simple overall structure, less material consumption, low processing cost and good lateral stability, so as to overcome the deficiencies of the prior art.

The utility model has a crawler crane with a lateral reinforcement structure, comprising a crane body 1, a jib 2 connected to the crane body 1 rotating shaft, a super-lifting mast 3 and a mast 7, at the top of the jib 2 and the super-lifting mast 3 A front cable 4 is connected between the tops, a rear cable 5 is connected between the top of the superlift mast 3 and the top of the mast 7, and a main luffing rope 8 is connected between the top of the mast 7 and the crane body 1. It is characterized in that: the super-lifting mast 3, the mast 7, the front cable 4 and the rear cable 5 are two groups and arranged symmetrically with respect to the center plane of the crane body 1 and the jib 2; Crossbeams 6 are connected between the masts 3 , support beams are connected between the tops of the masts 7 in each group, and the main luffing rope 8 is connected to the support beams.

The utility model has a crawler crane with a laterally reinforced structure, wherein the bottom ends of the two super-lifting masts 3 are connected at or close to the center of rotation of the crane body 1 and the root of the jib 2, and the upper parts of the super-lifting masts 3 They are inclined to both sides of the central plane of the crane body 1 and the jib 2 respectively, the inclination angle is 30°-50°, and the beam 6 is connected to the upper end of the superlift mast 3 .

In the crawler crane with lateral reinforcement structure of the present invention, the two superlift masts 3 are arranged in parallel, and the length of the crossbeam 6 is 0.5 to 0.7 times the length of the superlift masts 3 .

Compared with the prior art, the crawler crane with laterally reinforced structure of the utility model has two groups of the super-lifting mast 3, the mast 7, the front cable 4 and the rear cable 5, and they are relative to the crane body 1 and the arm. The central plane of the frame 2 is arranged symmetrically; beams 6 are connected between the super-lifting masts 3 in each group, support beams are connected between the tops of the masts 7 in each group, and the main luffing rope 8 is connected to the support beams. While enhancing the lateral stability, the structure of the whole machine is simplified, the amount of materials used is small, the weight of the equipment is light, the transportation is convenient, the design cost is low, and the manufacturing cost is low.

Description of drawings

Fig. 1 is the structural representation of the specific embodiment of the present utility model;

Fig. 2 is a schematic diagram of the K direction shown in Fig. 1 .

Detailed ways

As shown in Figures 1 and 2: 1 is the crane body, the crane body 1 is connected to the bottom rotating shaft of the jib 2, the super-lifting mast 3, and the mast 7, and passes between the top of the jib 2 and the top of the super-lifting mast 3 The pin shaft is connected with the front stay cable 4, the back stay cable 5 is connected through the pin shaft between the top of the superlift mast 3 and the top of the mast 7, and the main luffing rope 8 is connected between the top of the mast 7 and the crane body 1. The above-mentioned superlift mast 3, mast 7, front stay cable 4, and back stay cable 5 are two groups, and are symmetrically arranged left and right with respect to the central plane of the crane body 1 and the jib 2. The bottom ends of the two super-lifting masts 3 are located at the center of rotation of the crane body 1 and the root of the jib 2, and the upper parts of the super-lifting masts 3 are respectively inclined to both sides to form a symmetrical state, and the inclination angle is controlled between 30° and 50° , so that the angle between the two super-lifting masts is between 60° and 100°. A beam 6 is connected to the tops of the two super-lifting masts 3 . Two super-lifting masts 3 can also be arranged in parallel to form a door frame shape, and the length of the beam 6 connected in the middle is controlled between 0.5 times and 0.7 times of the length of the super-lifting masts 3 . The two masts 7 are arranged in parallel, and their upper ends are connected with support beams to form a door frame shape. The main luffing rope 8 matches the pulley block in the middle of the support beams and is used for main luffing.

Claims (3)

1. A crawler crane with a lateral reinforcement structure, comprising a crane body (1), a jib (2) connected to the crane body (1) rotating shaft, a superlift mast (3) and a mast (7). A front stay cable (4) is connected between the top of the frame (2) and the top of the super mast (3), and a rear stay cable (4) is connected between the top of the super mast (3) and the top of the mast (7). 5), the main luffing rope (8) is connected between the top of the mast (7) and the crane body (1), and is characterized in that: the super-lifting mast (3), mast (7), front stay cable ( 4) and the back cable (5) are two groups and arranged symmetrically with respect to the center plane of the crane body (1) and the jib (2); a crossbeam ( 6), a support beam is connected between the tops of the masts (7) in each group, and the main luffing rope (8) is connected to the support beam. 2. The crawler crane with lateral reinforcement structure according to claim 1, characterized in that: the bottom ends of the two super-lifting masts (3) are connected at or close to the center of rotation of the crane body (1) and The root of the jib (2) and the upper part of the super-lifting mast (3) are inclined to both sides of the center plane of the crane body (1) and the jib (2) respectively, and the inclination angle is 30° to 50°. The beam ( 6) be connected to the upper end of the mast (3). 3. The crawler crane with lateral reinforcement structure according to claim 1, characterized in that: the two super-lifting masts (3) are arranged in parallel, and the length of the crossbeam (6) is (3) 0.5 to 0.7 times the length.

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