Dragging type truss crane

Abstract

The utility model relates to the technical field of hoisting equipment, and aims to solve the technical problems of high manufacturing cost and low cost performance. In order to solve the technical problem, the utility model provides the dragging type truss crane. The utility model comprises: a revolving platform; the truss arm is rotationally connected to one end of the rotary platform; the four supporting assemblies are connected to the periphery of the bottom of the rotary platform and used for supporting the rotary platform; the supporting assembly comprises a connecting frame body and a ground boot. One end of the connecting frame body is connected with the revolving platform, and the other end is connected with the ground boot; the ground boots make contact with the ground. The counterweight assembly comprises a connecting frame and a plurality of counterweight pieces arranged in the connecting frame; the connecting frame is connected to the end, away from the truss arm, of the rotary platform. The truss crane can be stably and reliably supported through the four supporting assemblies, the truss crane can be connected with the rotary platform through other dragging power parts during short-distance movement, short-distance movement can be achieved, cost is greatly reduced, and the cost performance is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoisting equipment technical field especially is a kind of towed truss crane. BACKGROUND

[0002] ‌Truss crane‌ is a hoisting machinery, usually used for cargo handling. Truss crane includes rotating platform, truss arm rotatably connected on rotating platform and hoisting rope etc. Truss crane is widely used in warehouse, factory, wharf and other places, mainly used for handling heavy objects, such as container, steel plate, pipe etc. Truss crane is simple in structure, good in durability, stable in operation, safe and reliable, easy to operate.

[0003] There are many truss cranes in prior art, which are connected on automobile or caterpillar, so as to realize the movement of truss crane, and its cost is very high. According to investigation, the daily handling distance of truss crane is within 100m, and the movement function is rarely used, so the cost performance is low. UTILITY MODEL CONTENT

[0004] Therefore, the utility model solves the technical problems in prior art.

[0005] In order to solve the above technical problems, the utility model provides a kind of towed truss crane, including:

[0006] Rotating platform;

[0007] Truss arm, rotatably connected at one end of rotating platform;

[0008] Four support assemblies are connected around the bottom of rotating platform for supporting rotating platform;Support assembly includes connecting frame body and ground shoe;One end of connecting frame body is connected with rotating platform, and the other end is connected with ground shoe;Ground shoe is in contact with ground;

[0009] Counterweight assembly includes connecting frame and multiple counterweight pieces in connecting frame;Connecting frame is connected on one end of rotating platform away from truss arm.

[0010] In an embodiment of the utility model, truss arm includes two trapezoidal frame bodies and multiple intermediate connecting pieces;Two trapezoidal frame bodies are arranged in parallel;Two sides of two trapezoidal frame bodies are respectively connected through multiple intermediate connecting pieces.

[0011] In an embodiment of the utility model, truss arm includes multiple segments of detachably connected arm body, and arm body includes two trapezoidal frame bodies and multiple intermediate connecting pieces.

[0012] In an embodiment of the utility model, trapezoidal frame body and intermediate connecting piece are detachably connected through bolt.

[0013] In one embodiment of the utility model, the inner included angle α between the connecting frame body and the ground is 30°-45°.

[0014] In one embodiment of the utility model, the ground shoe comprises a bottom plate and four bending portions, the bending portions are connected at the side walls of the bottom plate, and the bending portions are bent upwards from the side walls of the bottom plate.

[0015] In one embodiment of the utility model, the bending portion and the bottom plate are connected at a position of an arc.

[0016] In one embodiment of the utility model, the inner wall of the bending portion and the upper surface of the bottom plate form an obtuse angle.

[0017] In one embodiment of the utility model, the counterweight comprises a bag and sand filled in the bag.

[0018] In one embodiment of the utility model, the four side walls of the rotary platform are respectively provided with at least one lifting ring.

[0019] The above technical scheme of the utility model has the following advantages compared with the prior art:

[0020] The drag type truss crane provided by the utility model is provided with four support assemblies around the bottom of the rotary platform to support the truss crane, each support assembly comprises a connecting frame body and a ground shoe, the connecting frame body reliably supports the rotary platform, the ground shoe increases the contact area between the connecting frame body and the ground, improves the stability, and facilitates leveling to prevent tilting. Thus, when hoisting goods, the four support assemblies can reliably and stably support the truss crane, and when moving at a short distance, the rotary platform can be connected with other dragging power parts (for example, a winch, a car, etc.) to realize short-distance movement without the need of a complex power driving system, thereby reducing the equipment self-weight and energy consumption, greatly reducing the cost, and being high in cost performance. The head can be separated from the wall to shorten the wheelbase, and the utility model is suitable for flexible operation in low factory buildings, narrow construction sites and other environments. The utility model has a simple structure and low failure rate, can be quickly transferred to a maintenance point through a trailer, and is convenient to maintain. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to make the content of the utility model more easily understood, the utility model will be further described in detail below according to the specific embodiments of the utility model and in combination with the drawings, wherein:

[0022] Figure 1 is a structural schematic view of a drag type truss crane in the preferred embodiment of the utility model;

[0023] Figure 2 is Figure 1 a top view of the drag type truss crane of

[0024] Figure 3 yes Figure 1 Enlarged view of point A of the towed truss crane;

[0025] Figure 4 yes Figure 1 A schematic diagram of the connection between the connecting frame and the ground shoe in a towed truss crane;

[0026] Figure 5 yes Figure 1 A structural schematic diagram of a section of the boom in a towed truss crane;

[0027] Figure 6 yes Figure 1 A schematic diagram of the trapezoidal frame structure in a drag-type truss crane;

[0028] Explanation of reference numerals in the accompanying drawings: 100, Rotary platform;

[0029] 200. Truss arm; 210. Trapezoidal frame; 220. Intermediate connector; 230. Arm body;

[0030] 300. Supporting components; 310. Connecting frame; 320. Ground shoes; 321. Base plate; 322. Bending section; 323. Rounded transition;

[0031] 400. Counterweight assembly; 410. Connecting frame; 420. Counterweight component;

[0032] 500. Ground. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0034] Reference Figures 1-6 As shown, this utility model embodiment provides a towable truss crane, including:

[0035] Slewing platform 100;

[0036] The truss arm 200 is rotatably connected to one end of the rotary platform 100;

[0037] Four support components 300 are connected around the bottom of the rotary platform 100 to support the rotary platform 100. Each support component 300 includes a connecting frame 310 and a floor shoe 320. One end of the connecting frame 310 is connected to the rotary platform 100 and the other end is connected to the floor shoe 320. The floor shoe 320 is in contact with the ground 500. In some possible embodiments, one end of the connecting frame 310 is welded to the rotary platform 100 and the other end of the connecting frame 310 is welded to the floor shoe 320, thereby ensuring the stability of the connection.

[0038] The counterweight assembly 400 includes a connecting frame 410 and a plurality of counterweights 420 arranged in the connecting frame 410; the connecting frame 410 is connected to the slewing platform 100 at an end away from the truss arm 200. When hoisting a cargo or moving at a short distance, the counterweight assembly 400 can ensure the stability of the whole structure and avoid tilting.

[0039] The present application sets four support assemblies 300 around the bottom of the slewing platform 100 to support the truss crane, each support assembly 300 includes a connecting frame body 310 and a ground shoe 320, the connecting frame body 310 reliably supports the slewing platform 100, and the ground shoe 320 increases the contact area between the connecting frame body 310 and the ground 500, improves stability, and facilitates leveling to prevent tilting. Thus, when hoisting a cargo, the four support assemblies 300 can stably and reliably support the truss crane, and when moving at a short distance, the slewing platform 100 can be connected to other towing power units (such as winches, cars, etc.) to achieve short-distance movement without the need for a complex power drive system, reducing the equipment self-weight and energy consumption, greatly reducing the cost, and having a high cost performance. The present application can shorten the wheelbase by separating the head from the wall, and is suitable for flexible operation in low factory buildings, narrow construction sites and other environments. The structure of the present application is simple and has a low failure rate, and can be quickly transferred to a maintenance point by a trailer, facilitating maintenance.

[0040] In some comparative examples, the truss arm 200 is a large frame, which is not convenient to carry and transport when moving at a long distance. In other examples, the truss arm 200 is assembled into a large frame by a plurality of cross bars and longitudinal bars, which needs to be disassembled into a plurality of cross bars and a plurality of longitudinal bars when moving at a long distance. Although this can facilitate carrying and transportation, the installation and disassembly work is relatively large. To solve this problem, further, the truss arm 200 includes two trapezoidal frame bodies 210 and a plurality of intermediate connecting pieces 220; the two trapezoidal frame bodies 210 are arranged in parallel; and the two sides of the two trapezoidal frame bodies 210 are detachably connected by the plurality of intermediate connecting pieces 220. In some examples, the trapezoidal frame body 210 and the intermediate connecting piece 220 are detachably connected by bolts.

[0041] Specifically, the two trapezoidal frame bodies 210 are connected into one body by the plurality of intermediate connecting pieces 220, so that when moving at a long distance, only the connection between the intermediate connecting pieces 220 and the trapezoidal frame bodies 210 needs to be disassembled, and after disassembly, there are only two trapezoidal frame bodies 210 and a plurality of intermediate connecting pieces 220. Since the trapezoidal frame body 210 has a sheet-like structure and occupies a small area, it is convenient to move. In addition, the time and labor for disassembly and installation are saved. As can be seen, the present embodiment can balance the small installation and disassembly work and facilitate carrying and transportation.

[0042] Further, the truss arm 200 comprises a plurality of arm bodies 230, and two adjacent arm bodies 230 are detachably connected. Each arm body 230 comprises two trapezoidal frame bodies 210 and a plurality of intermediate connecting pieces 220.

[0043] Specifically, the embodiment can reduce the length of the trapezoidal frame body 210, thereby further facilitating carrying and transportation.

[0044] Further, the inner angle α between the connecting frame body 310 and the ground 500 is 30°-45°.

[0045] Specifically, the angle range can make the whole structure more stable and reliable.

[0046] Further, the ground shoe 320 comprises a bottom plate 321 and four bent portions 322, and the bent portions 322 are connected to the side walls of the bottom plate 321.

[0047] Specifically, the bent portion 322 provided in the embodiment can increase stability.

[0048] Further, the bent portion 322 is connected to the bottom plate 321 at a position of a circular arc transition 323. Specifically, the design of the circular arc transition 323 can reduce the friction between the ground shoe 320 and the ground 500 when dragged at a close distance, thereby facilitating rapid dragging.

[0049] Further, the inner wall of the bent portion 322 and the upper surface of the bottom plate 321 form an obtuse angle. For example, the inner wall of the bent portion 322 and the upper surface of the bottom plate 321 form an angle β of 115°-135°.

[0050] Specifically, the embodiment can further increase the stability of the structure on the one hand, and can increase the internal space wrapped by the four bent portions 322, increase the operation space at the connection between the connecting frame body 310 and the ground shoe 320, and facilitate the welding of the connecting frame body 310 and the ground shoe 320 by the operator in the space.

[0051] Further, the counterweight 420 comprises a bag and sand filled in the bag.

[0052] Specifically, the embodiment can directly fill sand in the bag on site to form the counterweight 420. In this way, when transferring the site, only the sand in the bag needs to be poured out, and the sand can be filled in the bag after reaching the destination. In addition, sand is easy to obtain on site. Therefore, the embodiment is convenient to use and low in cost.

[0053] In some embodiments, the connecting frame 410 is a multi-layer frame structure, and the counterweight 420 is placed in the connecting frame 410. Specifically, the connecting frame 410 of the present embodiment is a multi-layer frame structure, so that a plurality of counterweights 420 can be stacked in each layer of the frame structure, so that each layer has a frame structure to support and limit the counterweight 420, so that the counterweight 420 can not be connected with the connecting frame 410, and the counterweight 420 will not be tilted.

[0054] Further, the four side walls of the rotary platform 100 are respectively provided with at least one lifting ring (not shown in the figure).

[0055] Specifically, it is convenient to drag the towed truss crane at a close distance, and the lifting ring is connected with the towed power part.

[0056] Obviously, the above embodiments are only examples for clear illustration, and are not limited to the embodiments. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the embodiments. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A towed truss kite characterized by: The utility model relates to a rotary platform, a truss arm rotatably connected to one end of the rotary platform, four support assemblies connected around the bottom of the rotary platform for supporting the rotary platform, the support assembly comprising a connecting frame and a ground shoe, one end of the connecting frame being connected to the rotary platform and the other end being connected to the ground shoe, the ground shoe being in contact with the ground, a counterweight assembly comprising a connecting frame and a plurality of counterweight pieces arranged in the connecting frame, the connecting frame being connected to the rotary platform away from the truss arm. The truss arm comprises two trapezoidal frames and a plurality of intermediate connecting pieces, the two trapezoidal frames being arranged in parallel, and the two sides of the two trapezoidal frames being detachably connected by the plurality of intermediate connecting pieces. The trapezoidal frame and the intermediate connecting piece are detachably connected by bolts. The truss arm comprises a plurality of detachably connected arm bodies, the arm body comprising two trapezoidal frames and a plurality of intermediate connecting pieces. The inner angle alpha between the connecting frame and the ground is 30-45 degrees.

2. The towed truss trailer of claim 1, wherein: The ground shoe comprises a bottom plate and four bent portions, the bent portions being connected to the side walls of the bottom plate and being bent upward from the side walls of the bottom plate.

3. The towed truss trailer of claim 2, wherein: The bent portion and the bottom plate are connected by a circular arc.

4. The towed truss trailer of claim 2, wherein: The inner wall of the bent portion and the upper surface of the bottom plate form an obtuse angle.

5. The towed truss trailer of claim 1, wherein: The counterweight piece comprises a bag and sand filled in the bag.

6. The towed truss trailer of claim 1, wherein: The four side walls of the rotary platform are respectively provided with at least one lifting ring.

7. The towed truss trailer of claim 6, wherein: ​ 8. The towed truss trailer of claim 6, wherein: ​ 9. The towed truss trailer of claim 1, wherein: ​ 10. The towed truss trailer of claim 1, wherein: ​

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