Container crane heightening device

Abstract

The utility model relates to the technical field of container terminal mechanical equipment, and discloses a container crane heightening device which is characterized in that two lower cross beams are arranged at the two ends of the bottom of a container crane, four walking trolleys are arranged at the four corners below the lower cross beams, an anchoring mechanism is arranged below the middle position of each lower cross beam, and the anchoring mechanisms are arranged on the lower cross beams. The heightening device comprises four jacking devices, a plurality of flange jacking blocks and anchoring lengthening blocks, the jacking devices are arranged on the inner sides of the four walking trolleys below the lower cross beam, the four jacking devices jack the lower cross beam synchronously, the flange jacking blocks are fixed to the four walking trolleys and the lower cross beam, and the anchoring lengthening blocks are fixed to the flange jacking blocks. And an anchoring lengthening block is fixedly arranged on the anchoring mechanism. According to the utility model, the cart part of the crane is heightened, the period is short, the cost is low, the construction safety is good, and the device is particularly suitable for occasions with heightened heights below 3 meters.

Description

Technical Field

[0001] This utility model relates to the field of container terminal machinery and equipment technology, and in particular to a container crane raising device. Background Technology

[0002] Quay and yard container cranes are the most important equipment used in container ports. As container ships become increasingly larger, existing quay container cranes are no longer sufficient. At the same time, the increasing volume of containers is leading to increasingly tight space in container yards. Therefore, appropriate modifications to these cranes can maximize their ability to meet requirements under existing conditions. Increasing the height of these cranes is the most effective method.

[0003] The most common way to raise equipment is to extend the crane's gantry. This method requires large raising devices, has a long construction period, and is expensive. The gantry extension process may involve destructive operations such as cutting and welding, posing safety hazards. In addition, extending the gantry significantly raises the crane's center of gravity, which is also a safety hazard. Utility Model Content

[0004] The purpose of this utility model is to solve the above problems and provide a container crane raising device that raises the crane trolley section. This device has a short cycle, low cost, and good construction safety, and is especially suitable for situations where the raising height is less than 3 meters.

[0005] The technical solution adopted by this utility model is:

[0006] A container crane lifting device is provided, wherein the container crane has two lower crossbeams at both ends of its bottom, four traveling trolleys are provided at the four corners below the lower crossbeams, and an anchoring mechanism is provided below the middle position of each lower crossbeam. The lifting device includes four lifting devices, several flange lifting blocks, and anchoring extension blocks. The lifting devices are located inside the four traveling trolleys below the lower crossbeams. The four lifting devices lift the lower crossbeams synchronously. The flange lifting blocks are fixed on the four traveling trolleys and the lower crossbeams, and the anchoring extension blocks are fixed on the anchoring mechanism.

[0007] Furthermore, after all the flange lifting blocks are fixed, the flange raising section is used to replace the flange lifting blocks.

[0008] Furthermore, the lifting device includes an inverted U-shaped upper support and a U-shaped lower support, with two hydraulic jacks connected between the upper and lower supports. The two hydraulic jacks operate synchronously, and the upper support contacts and supports the lower crossbeam, with the two arranged vertically.

[0009] Furthermore, after the hydraulic jack is raised, multiple pads are fitted on the stroke column, and the pads support the height of the jack after it is raised.

[0010] Furthermore, the flange lifting block is square, and multiple flange lifting blocks are stacked to support the lifting height of the lower crossbeam. Adjacent flange lifting blocks are connected by fastening bolts.

[0011] Furthermore, each flange lifting block has bolt holes at the four corners of its upper and lower plates. The upper and lower plates of adjacent flange lifting blocks are connected to each other by four fastening bolts in the bolt holes. The upper plate of the uppermost flange lifting block is fixed to the lower crossbeam, and the lower plate of the lowermost flange lifting block is fixed to the traveling trolley.

[0012] Furthermore, the container crane is a quay or site container crane with a height of less than 3 meters.

[0013] The beneficial effects of this utility model are:

[0014] (1) Short construction period, low cost, and good safety;

[0015] (2) Suitable for situations where the height is less than 3 meters;

[0016] (3) Applied to various container cranes. Attached Figure Description

[0017] Appendix Figure 1 This is a structural diagram of the crane before it was heightened (the lifting device is already in place);

[0018] Appendix Figure 2 This is a schematic diagram of the initial state of the lifting mechanism;

[0019] Appendix Figure 3 This is a schematic diagram of the lifting mechanism after it has been raised.

[0020] Appendix Figure 4 This is a structural diagram of the flange lifting block during installation;

[0021] Appendix Figure 5 This is a structural diagram of the heightening process;

[0022] Appendix Figure 6 This is a front view of the crane after it has been heightened;

[0023] Appendix Figure 7 This is a side view of the crane after it has been heightened.

[0024] The labels in the attached diagram are as follows:

[0025] 1. Lower crossbeam; 2. Lifting device;

[0026] 3. Traveling trolley; 4. Flange lifting block;

[0027] 5. Anchoring extension block; 6. Anchoring mechanism;

[0028] 7. Upper support; 8. Upper support;

[0029] 9. Hydraulic jack; 10. Hydraulic power unit;

[0030] 11. Pad; 12. Flange heightening section;

[0031] 13. Fastening bolts; 14. Escalator;

[0032] 15. Crane. Detailed Implementation

[0033] The specific implementation of the container crane raising device of this utility model will be described in detail below with reference to the accompanying drawings.

[0034] Container cranes are mostly quay or yard container cranes. Taking rail-mounted cranes as an example, the bottom of the gantry of a container crane is equipped with two lower crossbeams at both ends. Four traveling trolleys are installed at the four corners below the lower crossbeams, and an anchoring mechanism is installed below the middle position of each lower crossbeam.

[0035] See appendix Figure 1 After the crane 15 is lifted by the lifting device 2 below the lower crossbeam 1, the height is increased between the traveling trolley 3 and the lower crossbeam 1, thereby raising the crane 15.

[0036] The equipment used includes four lifting devices 2, several flange lifting blocks 4, and anchoring extension blocks 5. The lifting devices 2 are located inside the four traveling trolleys 3 below the lower crossbeam 1. The four lifting devices 2 lift the lower crossbeam 1 synchronously. The flange lifting blocks 4 are fixed on the four traveling trolleys 3, and the anchoring extension blocks 5 are fixed on the anchoring mechanism 6.

[0037] See appendix Figure 2 , 3 The lifting device 2 includes an inverted U-shaped upper support 7 and a U-shaped lower support 8. Two hydraulic jacks 9 are connected between the upper support 7 and the lower support 8. Both hydraulic jacks 9 are connected to a hydraulic station 10. The upper support 7 is in contact with and supports the lower crossbeam 1, and the two are arranged vertically. After the hydraulic station 10 applies pressure to the two hydraulic jacks 9, the jacks 9 are lifted upwards, and the lifting force is transmitted to the lower crossbeam 1 through the upper support 7. In order to ensure the maintenance of the lifting force of the jacks 9, multiple pads 11 are fitted on the stroke column after the hydraulic jacks 9 are lifted. The pads 11 are used to support the height of the jacks 9 after lifting.

[0038] After the lifting device 2 raises the lower crossbeam 1 to the height of one person, the flange lifting blocks 4 are fixed on the four traveling trolleys 3 to raise the lower crossbeam 1 by one height. After all the flange lifting blocks 4 are fixed, the flange raising section 12 is used to replace the flange lifting blocks 4.

[0039] See appendix Figure 4The flange lifting blocks 4 are square, and multiple flange lifting blocks 4 are stacked to support the lifting height of the lower crossbeam 1. Adjacent flange lifting blocks 4 are connected by fastening bolts 13. Each flange lifting block 4 has bolt holes at its four corners on both the upper and lower plates. The upper and lower plates of adjacent flange lifting blocks 4 are connected by four fastening bolts 13 at these bolt holes. The upper plate of the uppermost flange lifting block 4 is fixed to the lower crossbeam 1, and the lower plate of the lowermost flange lifting block 4 is fixed to the traveling trolley 3. The connection between the traveling trolley 3 and the lower crossbeam 1 is released at the beginning of the lifting process. Bolts larger than M12 are selected.

[0040] The jack has a stroke of 200mm, a pad block height of 11180mm, and an adjustment block. To ensure safety, the height increase is generally less than 3 meters.

[0041] See appendix Figure 5 , 6 7. The specific construction process is as follows:

[0042] First, prepare the relevant materials, including the lifting device 2, pad block 11, flange lifting block 4, bolts, and anchoring extension block 5, and prepare the operating tools.

[0043] Position the crane 15 to the construction location and secure it with fasteners to prevent accidental movement. Fix four lifting devices 2 to the inside of the four traveling trolleys 3 below the lower crossbeam 1. After connecting the four lifting devices 2 to the hydraulic station 10, apply pressure to create a preload between the lifting devices 2 and the lower crossbeam 1.

[0044] Then, the four lifting devices 2 simultaneously lift the lower crossbeam 1 of the crane 15 slightly. At this time, there is no force between the crane 15 and the four traveling carriages 3. After the fastening connection between the traveling carriages 3 and the lower crossbeam 1 is released, the flange lifting block 4 can be connected later.

[0045] Then continue lifting, raising the lower crossbeam 1 to the height of a flange lifting block 4. Simultaneously or sequentially, fix a flange lifting block 4 between the four traveling trolleys 3 and the lower crossbeam 1, and connect the flange lifting block 4 to the traveling trolleys 3 with bolts. Then lift to another height, insert another flange lifting block 4, and fix this flange lifting block 4 to the lower crossbeam 1. Insert another flange lifting block 4 and fix it between the upper and lower flange lifting blocks 4. After multiple lifting and insertion of flange lifting blocks 4, the predetermined lifting height is reached. Finally, fix all the flange lifting blocks 4 with bolts.

[0046] After the lifting device 2 lifts the object to a certain height, a pad 11 is placed on its stroke column. The pad 11 supports the height after lifting and ensures the stability of the lifting process.

[0047] After all flange lifting blocks 4 are installed, the height of crane 15 is raised. Then, extension blocks are added to the anchoring mechanism 6 below the lower crossbeam 1 to support the ground. The anchoring extension blocks 5 are also pre-made according to their length.

[0048] Finally, use a forklift to remove the four sets of flange lifting blocks at each of the four corners and replace them with flange extension sections 12. To remove them, simply unscrew the bolts connecting the four sets of flange lifting blocks to the lower crossbeam 1 and the traveling trolley 3. When replacing the flange extension sections 12, do so one at a time, not simultaneously, to avoid deviations and accidents.

[0049] Finally, the lifting device 2 was slowly removed, completing the raising of the crane 15.

[0050] During the heightening process, other auxiliary equipment on the crane 15, such as escalator 14, wires and cables, and windproof cables, are processed in advance and lengthened or arranged after the heightening is completed to meet the various requirements of the crane 15.

[0051] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A container crane heightening device, two lower cross beams are arranged at the bottom of both ends of the container crane, four walking trolleys are arranged at the four corners below the lower cross beams, and an anchoring mechanism is arranged below the middle position of each lower cross beam, characterized in that: The height increasing device comprises four jacking devices, a plurality of flange jacking blocks and an anchoring lengthening block, the jacking devices are arranged at the inner sides of the four travelling trolleys below the lower cross beam, the four jacking devices synchronously jack up the lower cross beam, the flange jacking blocks are fixed on the four travelling trolleys and the lower cross beam, and the anchoring lengthening block is fixed on the anchoring mechanism.

2. A container crane heightening arrangement according to claim 1, characterized in that: After the flange jacking blocks are all fixed, the flange jacking blocks are replaced by using a flange height increasing section.

3. A container crane heightening arrangement according to claim 1, characterized in that: The jacking device comprises an inverted U-shaped upper support and a U-shaped lower support, two hydraulic jacks are connected between the upper support and the lower support, the two hydraulic jacks synchronously act, the upper support is in contact with and supports the lower cross beam, and the upper support and the lower cross beam are vertically arranged.

4. A container crane heightening arrangement according to claim 3, characterized in that: After the hydraulic jacks are jacked up, a plurality of pads are sleeved on the stroke columns, and the pads support the jacked-up height of the jacks.

5. A container crane upgrade according to any one of claims 1 to 4, characterized in that: The flange jacking blocks are square, a plurality of flange jacking blocks are stacked, support the lifting height of the lower cross beam, and the adjacent flange jacking blocks are connected through fastening bolts.

6. A container crane upgrade according to claim 5, characterized in that: Screw holes are arranged on the four corners of the upper plate and the lower plate of each flange jacking block, the upper plate and the lower plate of the adjacent flange jacking blocks are connected through four fastening bolts on the screw holes, the upper plate of the uppermost flange jacking block is fixed with the lower cross beam, and the lower plate of the lowermost flange jacking block is fixed with the travelling trolley.

7. A container crane upgrade according to any of claims 1 to 4, characterized in that: The container crane is a shore or site container crane, and the height increasing height is less than 3 meters.

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