Device for reducing ground ratio of large crawler crane

Abstract

The utility model provides a device for reducing the ground ratio of a large-scale crawler crane, which comprises a crawler crane main body, an anti-drop rod and a counterweight seat, the upper end of the crawler crane main body is provided with a lifting rod, the lower end of the back of the crawler crane main body is fixedly provided with a counterweight mounting plate, and the rear end of the counterweight mounting plate is provided with a clamping groove; a first fixing plate and a second fixing plate are horizontally fixed at the front end of the counterweight seat, and the design solves the problems that in an original device, a counterweight block is located on the ground during hoisting, if walking is needed, the whole machine can walk only by lifting the counterweight block to leave the ground, operation is troublesome, and walking is inconvenient; according to the auxiliary moving type counterweight structure, the counterweight block can be conveniently mounted on the counterweight part of the crawler crane for use, meanwhile, the grounding ratio of hoisting equipment can be reduced, the counterweight block can be conveniently and quickly transferred subsequently, and the whole walking of the crawler crane cannot be influenced.

Description

Technical Field

[0001] The utility model relates to a device for reducing the ground contact ratio of a large crawler crane, belonging to the technical field of crane auxiliary equipment. Background Art

[0002] A crawler crane is a mobile crane with the lifting element mounted on a crawler chassis and moving via crawler tracks. Crawler cranes are available with wire ropes that include phosphate-coated, galvanized, and smooth-surfaced wire ropes. Crawler cranes are a type of lifting machinery used for hoisting and lifting, using crawler tracks. They are the most commonly used type of crane for hoisting single-story industrial plants. They consist of a power unit (engine), transmission (main clutch, speed reducer, reversing mechanism, etc.), slewing mechanism, travel mechanism (crawler tracks, traveling frame), hoisting mechanism (hook and boom lifting mechanism), operating system, working device (boom, lifting pulley block, etc.), and electrical equipment.

[0003] However, the current suspended super-lift counterweight machine has a super-lift counterweight pull plate connected above the super-lift mast, and a counterweight block connected below the super-lift counterweight pull plate. During normal lifting, the counterweight block is located on the ground. If it needs to move, the counterweight block must be lifted off the ground before the entire machine can move. This is cumbersome to operate and inconvenient to move. Now, there is an urgent need for a device to reduce the ground ratio of large crawler cranes to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a device for reducing the ground contact ratio of a large crawler crane to solve the problems raised in the above-mentioned background technology. The utility model designs an auxiliary movable counterweight structure, which is convenient for installing the counterweight block on the counterweight part of the crawler crane for use. At the same time, it can also reduce the ground contact ratio of the lifting equipment, and it is also convenient to quickly transfer the counterweight block later, which will not affect the overall travel of the crawler crane.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a device for reducing the ground ratio of a large crawler crane, comprising a crawler crane body, an anti-slip rod and a counterweight seat, wherein a lifting rod is installed at the upper end of the crawler crane body, a counterweight mounting plate is fixed at the lower end of the back of the crawler crane body, and a clamping slot is provided at the rear end of the counterweight mounting plate, a first fixing plate and a second fixing plate are horizontally fixed to the front end of the counterweight seat, a plurality of hook rods are longitudinally fixed between the first fixing plate and the second fixing plate, the first fixing plate and the second fixing plate are clamped in the clamping slot, a plurality of anti-slip holes are penetrated between the first fixing plate, the second fixing plate and the counterweight mounting plate, and anti-slip rods are longitudinally inserted into the plurality of anti-slip holes, a plurality of metal legs are fixed at equal angles at the lower end of the counterweight seat, and universal casters are installed at the lower ends of the plurality of metal legs.

[0006] Furthermore, a plurality of matching steel ropes are arranged between the counterweight mounting plate and the lifting rod.

[0007] Furthermore, a hook is provided at the other end of the plurality of matching steel wire ropes.

[0008] Furthermore, a plurality of counterweight blocks are placed on the upper end of the counterweight seat.

[0009] Furthermore, the plurality of hook rods are all steel bar rods.

[0010] Furthermore, the plurality of anti-drop rods are all made of the same stainless steel metal material.

[0011] The beneficial effects of the utility model: The utility model is a device for reducing the ground ratio of a large crawler crane. Since the utility model adds a counterweight mounting plate, a counterweight seat, a first fixed plate, an anti-slip rod, a hook rod, a second fixed plate, a counterweight block, metal legs and universal casters, our design improvements and actual use have shown that the device has a reasonable structure and good practicality. An auxiliary mobile counterweight structure is designed to facilitate the installation of the counterweight block on the counterweight part of the crawler crane for use, and at the same time it can also reduce the ground ratio of the lifting equipment, and it is also convenient to quickly transfer the counterweight block later, which will not affect the overall travel of the crawler crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0013] Figure 1 This is a schematic diagram of the overall structure of a device for reducing the ground contact ratio of a large crawler crane according to the present invention;

[0014] Figure 2 This is a schematic diagram of the connection of a counterweight mounting plate of a device for reducing the ground contact ratio of a large crawler crane according to the present invention;

[0015] Figure 3 This is a three-dimensional schematic diagram of a counterweight seat of a device for reducing the ground contact ratio of a large crawler crane according to the present invention;

[0016] In the figure: 1-crawler crane body, 2-counterweight mounting plate, 3-counterweight seat, 4-first fixing plate, 5-clamping slot, 6-anti-drop hole, 7-anti-drop rod, 8-hook rod, 9-second fixing plate, 10-counterweight block, 11-metal support leg, 12-universal caster, 13-lifting rod, 14-matching wire rope. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] See also Figure 1-Figure 3 The utility model provides a technical solution: a device for reducing the ground ratio of a large crawler crane, comprising a crawler crane body 1, an anti-slip rod 7 and a counterweight seat 3, a lifting rod 13 being installed on the upper end of the crawler crane body 1, a counterweight mounting plate 2 being fixed to the lower end of the back of the crawler crane body 1, and a card slot 5 being opened at the rear end of the counterweight mounting plate 2, a first fixing plate 4 and a second fixing plate 9 being fixed horizontally to the front end of the counterweight seat 3, a plurality of hook rods 8 being fixed longitudinally between the first fixing plate 4 and the second fixing plate 9, the first fixing plate 4 The second fixing plate 9 is clamped in the clamping slot 5, and a plurality of anti-drop holes 6 are opened between the first fixing plate 4, the second fixing plate 9 and the counterweight mounting plate 2. Anti-drop rods 7 are longitudinally inserted into the plurality of anti-drop holes 6. A plurality of metal legs 11 are fixed at equal angles at the lower end of the counterweight seat 3, and universal casters 12 are installed at the lower ends of the plurality of metal legs 11. This design solves the problem that the counterweight block is located on the ground when lifting in the original device. If walking is required, the counterweight block must be lifted off the ground before the whole machine can move, which is cumbersome to operate and inconvenient to walk.

[0019] As a first embodiment of the present invention, a plurality of supporting steel wire ropes 14 are provided between the counterweight mounting plate 2 and the lifting rod 13. A hook is provided at the other end of the plurality of supporting steel wire ropes 14. A plurality of counterweight blocks 10 are placed on the upper end of the counterweight seat 3. The plurality of hook rods 8 are all steel bars. The addition of the plurality of hook rods 8, all of which are steel bars, facilitates hooking and pulling by an external tractor, thereby allowing the counterweight seat 3 and the plurality of counterweight blocks 10 to be transferred without affecting the movement of the crawler crane body 1. The plurality of anti-slip rods 7 are all made of the same stainless steel metal material, utilizing its material properties to facilitate long-term anti-slip use.

[0020] As a second embodiment of the present utility model: when the crawler crane body 1 needs to be transferred separately, it is only necessary to pull out the multiple anti-dropping rods 7 from the multiple anti-dropping holes 6, and then start the crawler crane body 1 to move it with the counterweight mounting plate 2. After the counterweight mounting plate 2 is removed, the multiple hook rods 8 are exposed. At this time, the staff can operate the external tractor to move in front of the counterweight seat 3, hook the external tractor to the hook rod 8, and then pull the counterweight seat 3 carrying the multiple counterweight blocks 10 for transfer (in this process, the multiple universal casters 12 roll on the external ground).

[0021] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0022] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A device for reducing the ground contact ratio of a large crawler crane, comprising a crawler crane body (1), an anti-drop rod (7) and a counterweight seat (3), characterized in that: A lifting rod (13) is installed at the upper end of the crawler crane body (1), a counterweight mounting plate (2) is fixed to the lower end of the back of the crawler crane body (1), and a clamping slot (5) is provided at the rear end of the counterweight mounting plate (2); A first fixing plate (4) and a second fixing plate (9) are horizontally fixed to the front end of the counterweight seat (3), a plurality of hook rods (8) are longitudinally fixed between the first fixing plate (4) and the second fixing plate (9), the first fixing plate (4) and the second fixing plate (9) are clamped in the clamping groove (5), a plurality of anti-drop holes (6) are opened through between the first fixing plate (4), the second fixing plate (9) and the counterweight mounting plate (2), and anti-drop rods (7) are longitudinally inserted into the plurality of anti-drop holes (6), a plurality of metal legs (11) are fixed at equal angles at the lower end of the counterweight seat (3), and a universal caster (12) is installed at the lower end of the plurality of metal legs (11).

2. The device for reducing the ground contact ratio of a large crawler crane according to claim 1, characterized in that: A plurality of matching steel wire ropes (14) are provided between the counterweight mounting plate (2) and the lifting rod (13).

3. The device for reducing the ground contact ratio of a large crawler crane according to claim 2, characterized in that: The other ends of the plurality of matching steel wire ropes (14) are provided with hooks.

4. The device for reducing the ground contact ratio of a large crawler crane according to claim 1, characterized in that: A plurality of counterweight blocks (10) are placed on the upper end of the counterweight seat (3).

5. The device for reducing the ground contact ratio of a large crawler crane according to claim 1, characterized in that: The plurality of hook rods (8) are all steel bar rods.

6. The device for reducing the ground contact ratio of a large crawler crane according to claim 1, characterized in that: The plurality of anti-drop rods (7) are all made of the same stainless steel metal material.

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