Overturn-preventing system for whole machine transition of large-scale crawler crane

Abstract

The utility model discloses an anti-overturning system for whole machine transition of a large-scale crawler crane, which comprises two bearing beams which are respectively arranged corresponding to crawler belts on the left side and the right side of the crawler crane, and the bottom surfaces of the front sides and the rear sides of the two bearing beams are respectively supported on the top surfaces of buttresses and are fixedly connected with the buttresses. The bottom face of each buttress is supported on one roadbed box and fixedly connected with the roadbed box, and the roadbed boxes are laid on the road surface. Parts, such as the buttress and the roadbed box, of the anti-overturning system can be assembled by using an on-site device, and remanufacturing is not needed; the stability is high, and the whole machine transition safety coefficient of the main arm superlift working condition of the crawler crane is improved.

Description

Technical Field

[0001] The utility model relates to an anti-overturning system, in particular to an anti-overturning system for the transfer of a crawler crane of 2000 tons or less. Background Art

[0002] In the construction of large petrochemical projects, there are many large crawler cranes (usually crawler cranes of 2,000 tons and below) on site, and large crawler cranes are frequently transferred during the peak operation period. The transfer of large crawler cranes is generally carried out by disassembling the entire crane into parts and then reassembling them, which has low construction efficiency. At present, there is no safe and efficient method for transferring crawler cranes in China. Summary of the invention

[0003] The utility model aims to overcome the shortcomings of the prior art and provide an anti-overturning system for the whole machine transfer of a large crawler crane which improves the construction efficiency.

[0004] The utility model discloses an anti-overturning system for the transfer of a large crawler crane, comprising two load-bearing beams respectively arranged corresponding to the left and right crawlers of the crawler crane, the front and rear bottom surfaces of the two load-bearing beams are respectively supported on the top surfaces of piers and fixedly connected to the piers, the bottom surface of each pier is respectively supported on a roadbed box and fixedly connected to the roadbed box, and the roadbed box is laid on the road surface.

[0005] The utility model has the following beneficial effects:

[0006] 1. The utility model uses piers and load-bearing beams to form a frame stable structure. If the crawler crane tilts during transportation, the piers will contact the ground to provide support and prevent the crawler crane from tipping over.

[0007] 2. It avoids the disassembly and reorganization of large crawler cranes during transfer, so as to improve the transfer of large crawler cranes under super-lifting conditions;

[0008] 3. Components of the anti-overturning system, such as piers and roadbed boxes, can be assembled using on-site devices without the need for remanufacturing;

[0009] 4. Simple structure and operation, only temporary assembly of the anti-overturning system is required, and the operation is very convenient;

[0010] 5. High stability, improving the safety factor of crawler crane transfer under super-lifting condition of main arm;

[0011] 6. Applicable to most large crawler crane operation construction sites;

[0012] 7. It can be applied to the transfer of the whole series of crawler cranes of 2000 tons and below. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the operation of the whole machine transfer anti-overturning system of a large crawler crane of the utility model;

[0014] Figure 2 This is a front view of the operation of a large crawler crane whole machine transfer anti-overturning system of the utility model;

[0015] Figure 3 It is a side view of the operation of the whole machine transfer anti-overturning system of a large crawler crane of the utility model;

[0016] Figure 4 yes Figure 1 A stereoscopic diagram of a large crawler crane whole machine transfer anti-overturning system is shown;

[0017] Figure 5 yes Figure 1 A structural perspective view of the roadbed box in the system shown;

[0018] Figure 6 yes Figure 1 A structural perspective view of the buttresses in the system shown;

[0019] Figure 7 yes Figure 1 A structural perspective view of the load-bearing beam in the system shown;

[0020] Figure 8 yes Figure 1 A perspective view of the SPTM axle transporter in the system shown;

[0021] Fig. 9 It is a side view of a crawler crane climbing to a predetermined height;

[0022] Fig.10 It is a side view of the crawler crane moving towards the load-bearing beam. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0024] As shown in the attached drawings, a large crawler crane whole machine transfer anti-overturning system of the utility model comprises two load-bearing beams 3 respectively arranged corresponding to the left and right crawlers of the crawler crane, the front and rear bottom surfaces of the two load-bearing beams are respectively supported on the top surface of the pier 2 and fixedly connected to the pier, the bottom surface of each pier is respectively supported on a roadbed box 1 and fixedly connected to the roadbed box, and the roadbed box 1 is laid on the road surface.

[0025] As an implementation mode of the utility model, the roadbed box uses a crawler crane rigid box type roadbed box.

[0026] Preferably, the pier 2 and the roadbed box 1 are temporarily welded by spot welding, and the load-bearing beam and the pier are connected by bolts.

[0027] The working process of this system includes the following steps:

[0028] Step 1: The crawler crane climbs to the predetermined height in a "Z"-shaped climbing manner. The specific process is as follows:

[0029] The first step is to lay the first group of roadbed boxes 1 along the center line direction of the left and right crawlers of the crawler crane. Each first group of roadbed boxes is a layer and is composed of multiple roadbed boxes spaced front and back. The preferred multiple roadbed boxes can be three roadbed boxes.

[0030] In the second step, the crawler crane drives onto the first set of roadbed boxes 1;

[0031] The third step is to lay a second group of roadbed boxes in the forward direction of the crawler crane and at positions corresponding to the first group of roadbed boxes, wherein the roadbed boxes at each position of the second group of roadbed boxes are all two-layer roadbed boxes;

[0032] Step 4: The crawler crane moves onto the two-layer roadbed box 1;

[0033] Step 5: laying two layers of roadbed boxes on the first layer of roadbed box to form a three-layer roadbed box, and then starting the crawler crane to travel to the three-layer roadbed box 1;

[0034] Step 6: Lay one layer of roadbed box on the two layers of roadbed box in step 3 to form a four-layer roadbed box, and then start the crawler crane to travel to the four-layer roadbed box 1;

[0035] Step 7, repeating Step 5 and Step 6 to respectively increase the number of roadbed box layers based on the original number of roadbed box layers, so that the number of roadbed box layers at the roadbed box to be driven into by the crawler crane is one layer more than the number of roadbed box layers at the location where the crawler crane is located, until the total height of the roadbed box at the final location of the crawler crane is flush with the top surface of the load-bearing beam of the crawler crane complete machine transfer anti-overturning system to be installed;

[0036] Step 2: Build the crawler crane transfer anti-overturning system. The specific process is as follows:

[0037] In the first step, a set of roadbed boxes 1 of the anti-overturning system are laid along the center line direction of the left and right crawlers of the crawler crane. Each set of roadbed boxes of the anti-overturning system is a layer and is composed of multiple roadbed boxes spaced front and back; the roadbed box of the anti-overturning system located on the approaching side of the crawler crane is set close to the side of the roadbed box in step 1;

[0038] In the second step, a buttress 2 is placed above each roadbed box 1, and the roadbed box and the buttress are temporarily welded by spot welding;

[0039] The third step is to place a load-bearing beam 3 above the left pier 2 and above the right pier respectively, and the load-bearing beam and the pier are connected by bolts;

[0040] Step 3: The crawler crane moves onto the load-bearing beam;

[0041] Step 4: Knock out the spot welding position between the pier 2 and the roadbed box, and the SPMT axis transport vehicle 4 drives under the load-bearing beam and lifts the bottom surface of the load-bearing beam 3 until the bottom surface of the pier 2 is 180mm-220mm away from the top surface of the roadbed box 1;

[0042] Step 5: The SPMT axis transport vehicle carries the crawler crane and transports it to the designated location;

[0043] Step 6. After the crawler crane is transported to the designated location, it drives into the structure erected at the designated location according to the final structure of step 7, and repeats step 1 in reverse, so that the number of roadbed box layers at the roadbed box to be driven into by the crawler crane is one layer less than the number of roadbed box layers at the location of the crawler crane, until the crawler crane is lowered to the ground.

[0044] Preferably, between step four and step five, a sealing chain is used to seal the crawler crane's counterweight and the SPMT axis transport vehicle to prevent the crawler crane from rotating left and right during transportation, and a wire rope is used to seal the crawler crane's hook head and the SPMT axis transport vehicle to prevent the hook head from swinging back and forth during transportation.

Claims

1. An anti-overturning system for large crawler crane transfer, characterized by: It comprises two load-bearing beams which are respectively arranged corresponding to the left and right crawlers of the crawler crane, the front and rear bottom surfaces of the two load-bearing beams are respectively supported on the top surfaces of the piers and are fixedly connected to the piers, the bottom surface of each pier is respectively supported on a roadbed box and is fixedly connected to the roadbed box, and the roadbed box is laid on the road surface.

2. The anti-overturning system for large crawler crane transfer according to claim 1 is characterized in that: The roadbed box uses a crawler crane rigid box type roadbed box.

3. The anti-overturning system for large crawler crane transfer according to claim 1 or 2, characterized in that: The pier is fixedly connected to the roadbed box by spot welding, and the load-bearing beam is fixedly connected to the pier by bolts.

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