CN201301179Y - Crawler crane self-dismounting device - Google Patents

Abstract

The utility model discloses a crawler crane self-dismounting device, comprising a lambda-shaped bracket, a mast, a drop hanger, a pulley block, and an amplitude hoist and a lifting hoist which are provided with cable wires; wherein, the pulley block is composed of a pulley and a pulley bracket; the upper end part of the mast is provided with a mounting attached base, the pulley bracket of the pulley block is articulated with the mounting attached base; the cable wire of the lifting hoist is connected with the drop hanger by the pulley block; the cable wire of the amplitude hoist is connected with the mast by a pulley at the upper end of the lambda-shaped bracket. The crawler crane self-dismounting device utilizes the hoists and the drop hanger of the crawler crane for carrying out operation; the amplitude hoist is connected with the mast by the pulley at the upper end of the lambda-shaped bracket for controlling the posture of the mast, and the lifting hoist is connected with the drop hanger by the pulley block which is additionally arranged at the upper end part of the mast for carrying out swing conveying; the working range of self-dismounting is wide by virtue of the mast of the crawler crane, thereby being beneficial to disassembling and assembling each knock-down component and further improving the operating efficiency.

Description

Crawler crane self-disassembly device

technical field

The utility model relates to a crawler crane, in particular to a self-disassembling device for a crawler crane.

Background technique

In recent years, with the large-scale development of crawler cranes, the weight of each main component of crawler cranes (such as truss arms, crawler beams, upper and lower counterweights, etc.) For long-distance walking and transition, each component needs to be disassembled and transported separately, and then assembled on site after arriving at the construction site. Because of the crawler crane with perfect self-disassembly function, it can not only save disassembly time, but also save the cost of renting auxiliary cranes. Therefore, it has become a new topic for crawler cranes to realize the self-disassembly and assembly of the main components when the crane is transferred.

At present, most crawler cranes at home and abroad have the function of self-disassembly and assembly, which can be roughly divided into two ways. One is to realize self-disassembly and assembly by means of a gable frame, and the other is to realize self-disassembly and assembly by means of a truss-type crane. Bottom section to complete. The basic operating principles of the two are similar, and a guide pulley needs to be installed when performing self-disassembly and assembly operations. It is a lifting tool for disassembly and assembly operations, so as to complete the self-disassembly or assembly of track beams, on-board counterweights, alighting counterweights, and truss arms.

In practical application, since the gable frame and the bottom section arm are limited by their own structural size, the working range in the self-disassembly operation is limited, which affects the efficiency of the self-disassembly operation.

Utility model content

In view of the above defects, the technical problem solved by the utility model is to provide a crawler crane self-disassembly device with a relatively large working range, so as to improve the work efficiency of self-disassembly or assembly operations.

The crawler crane self-disassembly device provided by the utility model includes: a herringbone frame, a mast, a hook, a pulley block, and a luffing hoist and a lifting hoist with a steel wire rope, wherein the pulley block is composed of a pulley and a pulley frame; The upper end of the mast has an attachment seat, and the pulley frame of the pulley block is hinged to the attachment seat; the wire rope of the hoisting winch is connected to the hook through the pulley block; the luffing winch The steel wire rope is connected with the mast through the pulley at the upper end of the gable.

Preferably, when the mast is stretched forward, the attachment seat is placed on the underside surface of the top of the mast.

There are two mounting seats, which are arranged symmetrically along the longitudinal center line of the mast.

There are through holes on the attachment base, and the through holes on the two attachment bases are arranged coaxially.

Preferably, it also includes a hinge pin shaft, the upper end of the pulley bracket has a hinge through hole, and the hinge pin shaft is installed in the hinge through hole of the pulley bracket and the through hole of the installation attachment seat, so as to realize the connection between the pulley bracket and the installation attachment. The hinge between the seats.

The crawler crane self-disassembly and assembly device provided by the utility model uses the hoisting and hook of the crawler crane itself to carry out operations, wherein the hook on the crawler crane is selected to wind the corresponding magnification; the luffing winch passes through the upper part of the herringbone The pulley is connected to the mast to control the attitude of the mast. The hoisting hoist is connected to the hook through the pulley block added at the upper end of the mast for lifting. With the rotation of the main engine, other main components can be self-disassembled and assembled. .

Compared with the prior art, the technical solution of the utility model uses the mast of the crawler crane to complete the self-disassembly and assembly operation, and the additional pulley block is hinged with the upper end of the mast without changing the main structure and main function of the existing mast. Due to the relatively long length of the mast, compared with the gable frame and the bottom section of the boom, the self-disassembly and assembly operation with the help of the crawler crane's own mast is relatively large, which is beneficial to the disassembly and assembly of various disassembled parts , thereby improving work efficiency.

The self-disassembly and assembly device of the crawler crane described in the utility model has a simple structure and is easy to operate, and can be used for self-disassembly and assembly of crawler beams, counterweights on the vehicle, counterweights on the vehicle, truss arms and other components, and the operation is labor-saving, safe and reliable.

The crawler crane self-disassembly device provided by the utility model can be widely used in various crawler cranes.

Description of drawings

Fig. 1 is a schematic diagram of the use state of the crawler crane self-disassembling device described in the utility model;

Fig. 2 is the A direction view of the I part structure of Fig. 1;

Fig. 3 is a schematic diagram of using the utility model to carry out self-disassembly and assembly operations. in:

Figure 3a is a schematic diagram of disassembly and assembly of the track beam;

Figure 3b is a schematic diagram of disassembly and assembly of the counterweight for getting off the car;

Figure 3c and Figure 3d are schematic diagrams of disassembly and assembly of the counterweight on the vehicle;

Fig. 3e is a schematic diagram of disassembly and assembly of the truss arm.

In the picture:

Herringbone frame 1, herringbone frame pulley 11, mast 2, hook 3, pulley block 4, pulley 41, pulley frame 42, luffing hoist 5, luffing hoist wire rope 51, hoisting hoist 6, hoisting coil Lifting steel wire rope 61, mounting base 7, hinge pin 8, pin clamping plate 9, bolt 10;

Outrigger cylinder 100, jacking cylinder 200, crawler beam 300, getting off counterweight 400, getting on counterweight 500, herringbone cylinder 600, and truss arm frame 700.

Detailed ways

The core idea of the utility model is that, by means of the mast of the crawler crane and the additional pulley block, the self-disassembly and assembly of the large-scale crawler crane crawler beam, the counterweight of the upper vehicle, the counterweight of the lower vehicle, and the truss arm are realized to improve the efficiency of the self-disassembly operation. efficiency.

The present embodiment will be described in detail below in conjunction with the accompanying drawings.

Referring to Fig. 1, this figure is a schematic diagram of the use state of the crawler crane self-disassembly device described in the utility model.

As shown in FIG. 1 , the self-disassembling device includes: a gable 1 , a mast 2 , a hook 3 , a pulley block 4 , and a luffing hoist 5 and a hoisting hoist 6 with wire ropes.

Wherein, the gable frame 1, the mast 2, the hook 3, the luffing hoist 5 with the wire rope, and the hoisting hoist 6 are all functional parts of the crawler crane, and the pulley block 4 is an added part, which Mainly be made up of pulley 41 and pulley frame 42, after treating that self-disassembling operation is finished, can dismantle.

The upper end of the mast 2 has a mounting base 7, and the pulley frame 42 of the pulley block 4 is hinged to the mounting base 7; The mast 2 is connected to control the attitude of the mast 2; the wire rope 61 of the hoisting winch 6 is connected to the hook 3 through the pulley block 4, and is used to lift parts to be disassembled. Hook 3 selects the hook that comes with the crawler crane, and the corresponding magnification of the winding is adapted to the needs of lifting.

As shown in FIG. 1 , when the mast 2 is stretched forward, the mounting base 7 is placed on the lower surface of the top of the mast 2 . In fact, the attachment seat 7 can also be arranged on the end surface of the top of the mast 2. It can be understood that, in order to obtain a better stress state for each load-bearing component, the attachment seat 7 is placed on the top of the mast 2. The arrangement of the underside surface of the top of the mast 2 is the best solution.

In order to clearly illustrate the hinge relationship between the pulley block 4 and the upper end of the mast 2 , please refer to FIG. 2 , which is an A-direction view of the I-part structure in FIG. 1 .

As shown in FIG. 2 , there are two mounting attachments 7 , which are arranged symmetrically along the longitudinal centerline of the mast 2 .

There are through holes on the said mounting base 7 , and the through holes on the two mounting bases 7 are arranged coaxially, so as to facilitate the pin shaft 8 to be worn.

The upper end of the pulley frame 42 has a hinged through hole, and the hinge pin 8 is worn in the hinged through hole of the pulley frame 42 and in the through hole of the attached seat 7 to realize the connection between the pulley frame 42 and the attached seat 7. the hinge.

Wherein, as shown in FIG. 2 , the axial positioning of the hinge pin 8 is realized by a pin clamp 9 and a bolt 10 , and the pin clamp 9 is placed on the protruding end of the hinge pin 8 . In the card slot, the pin shaft clamping plate 9 is fixedly connected with the mounting attachment seat 7 by bolts 10 . It can be understood that the axial positioning method of the hinge pin shaft 8 is not limited to the structure shown in the figure, and can also be realized by cotter pins or the like.

The working process of the self-disassembling device of the crawler crane described in the utility model is described in detail below by taking the self-disassembling of the complete machine as an example.

1. Assembly of the self-disassembling device of the crawler crane described in the utility model. See Figure 1.

First, the four outrigger cylinders 100 hinged with the vehicle frame support and lift the main engine out of the flatbed; then, install the pulley block 4 on the top of the mast 2, pass the hoisting wire rope 61 through the pulley block 4, and connect it with the selected hook 3 Connect; lift the mast 2 through the jacking cylinder 200 and swing to the front of the car. At this time, the luffing winch 5 releases the rope to keep the luffing wire rope 51 in a relaxed state; finally, when the mast 2 swings to the predetermined position, the luffing coil Lift 5 and take in the rope, so that the luffing wire rope 51 is in a tensioned state, and the two cavities of the jacking oil cylinder 200 are unloaded. At this point, the assembly preparations for the self-disassembly operation are completed. The disassembly of the self-disassembly device is reversed.

Second, the disassembly and assembly of the track beam. See Figure 3a.

Firstly, after the crawler beam 300 is hoisted, the crawler beam 300 is lifted off the ground through the luffing of the mast 2; then, through the rotation of the main engine, the luffing of the mast 2 and the lifting of the hook 3, the crawler beam 300 reaches the installation position and Assembled with frame. After the two crawler beams 300 are installed, the outrigger oil cylinder 100 is retracted, and all hydraulic and electrical connectors are connected, so that the crane can walk freely. So far, the installation work of the crawler beam 300 is completed. The disassembly operation of the track beam is reversed.

3. Disassembly and assembly of the counterweight when getting off the car. See Figure 3b.

Firstly, the alighting counterweight 400 is hoisted, and the alighting counterweight is lifted off the ground through the amplitude change of the mast 2; then, the alighting counterweight 400 Arrives at the installation location and assembles with the frame. The main engine turns 180 degrees, and the counterweight 400 on the other side is installed in the same way. So far, the installation work of getting off the counterweight is completed. The disassembly operation of the counterweight when getting off the car is reversed.

4. Disassembly and assembly of the counterweight on the vehicle. See Figure 3c and Figure 3d.

First, lift the counterweight 500 on the vehicle to the rear of the vehicle through the rotation of the main engine, and complete the stacking as required, as shown in Figure 3c. Then, adjust the position of the crane, remove the linear fixed position relationship between the upper section and the lower section of the rear side bar of the herringbone frame 1, and hinge between the upper section and the lower section of the rear side bar, and use the herringbone oil cylinder 600 to jack up the counterweight 500 to the specified Position, connected with the host, as shown in Figure 3d; finally, after the connection is completed, restore the linear fixed position relationship between the upper and lower sections of the rear side bar of the herringbone frame 1. So far, the installation work of the boarding counterweight 500 is completed. The disassembly operation of the counterweight on the board is reversed.

5. Disassembly and assembly of the truss arm. See Figure 3e.

First, assemble the bottom section, standard section, top section, anti-roll bar and other components of the truss jib 700 according to the work requirements; then, adjust the position of the crane, lift the root of the jib to the installation position, and connect with the main machine. So far, the installation work of the lattice arm 600 is completed. The disassembly operation of the truss arm is reversed.

In summary, the crawler crane self-disassembly device described in the utility model has a simple structure and is easy to operate, and can be used for self-disassembly and assembly operations of crawler beams, counterweights on the vehicle, counterweights on the vehicle, truss arms and other components, and the operation is labor-saving and convenient. It is safe and reliable, and can be widely used in various crawler cranes.

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

Claims (5)

1. The self-disassembly and assembly device of crawler cranes, including a gable frame, a mast, a hook, and a luffing winch and a lifting winch with wire ropes, is characterized in that it also includes: The pulley block consists of a pulley and a pulley frame; The upper end of the mast has a mounting seat, and the pulley frame of the pulley block is hinged to the mounting seat; The steel wire rope of the hoisting winch is connected with the hook through a block of pulleys; The wire rope of the luffing winch is connected with the mast through the pulley at the upper end of the gable. 2. The self-disassembling device for crawler crane according to claim 1, characterized in that, when the mast is stretched forward, the attachment seat is placed on the lower surface of the top of the mast. 3. The crawler crane self-disassembly device according to claim 2, characterized in that there are two attachment seats, which are arranged symmetrically along the longitudinal centerline of the mast. 4. The self-disassembling device for crawler crane according to claim 3, characterized in that, the attachment base has a through hole, and the through holes on the two attachment bases are arranged coaxially. 5. The crawler crane self-disassembly device according to claim 4, further comprising a hinge pin, the upper end of the pulley frame has a hinge hole, and the hinge pin is mounted on the hinge hole of the pulley frame. In the hole and the through hole of the attached seat, the hinge between the pulley frame and the attached seat is realized.

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