C-shaped lifting appliance for lifting tower section

Abstract

The utility model relates to the field of lifting appliances, in particular to a C-shaped lifting appliance for lifting tower sections, which comprises a lifting appliance main body and a lifting component arranged at the top of the lifting appliance main body, and the lifting appliance main body is C-shaped; the lifting appliance main body comprises an upper cross beam, a lower cross beam and a vertical beam connected between the upper cross beam and the lower cross beam; an adjusting chamber is arranged at the end, close to the vertical beam, of the upper cross beam, and a balancing weight capable of sliding in the horizontal direction is arranged in the adjusting chamber. The lower cross beam comprises a sleeve and a movable pipe horizontally arranged in the sleeve in a sliding mode, and the end, away from the movable pipe, of the sleeve is fixedly connected with the vertical beam. The lifting appliance can be suitable for tower sections with different sizes, so that the lifting appliance is kept balanced in the lifting process of the tower sections, and the safety of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of lifting tools, and in particular to a C-type lifting tool for tower sections. Background Technology

[0002] A wind turbine tower is the support structure of a wind turbine generator, primarily serving to support the turbine and absorb vibrations. The tower is constructed from multiple stacked and welded sections; each section is made of rolled and welded steel plates, with adjacent sections joined by flange seams. For transportation, the tower sections are typically secured with steel wire ropes and then transported by overhead crane. This process is complex, requires a large workforce, and involves high labor intensity. Furthermore, the steel wire ropes can cause wear and tear on the tower sections and pose safety hazards.

[0003] Currently, Chinese Patent Publication No. CN204198259U discloses a tower lifting device; it includes an upper lifting beam, a lower lifting beam, and a connecting component; the left or right ends of the upper and lower lifting beams are fixedly installed together at intervals via the connecting component; the connecting component is U-shaped; the upper edge of the opening of the connecting component is fixedly installed with the upper lifting beam; the lower edge of the opening of the connecting component is fixedly installed with the lower lifting beam; at least one lifting lug is fixedly installed on the lifting beam; and there is a lifting hole on the lifting lug above the upper lifting beam. This utility model has a reasonable and compact structure and is easy to use; simply fitting the tower onto the lower lifting beam for lifting is sufficient, making operation simple and convenient, reducing manual labor and labor intensity; at the same time, it causes less wear on the tower, and the U-shaped connecting component improves the strength of this utility model and extends its service life.

[0004] During the existing tower section lifting process, the tower section may slip due to instability of the center of gravity, which may injure the staff. Utility Model Content

[0005] Therefore, in view of the above problems, this utility model proposes a C-type lifting device for tower sections, which solves the technical problem that the existing tower section lifting devices are prone to slipping due to instability of the center of gravity.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A C-shaped lifting device for tower sections includes a lifting device body and a lifting assembly disposed on top of the lifting device body, wherein the lifting device body is C-shaped.

[0008] The main body of the lifting device includes an upper crossbeam, a lower crossbeam, and a vertical beam connecting the upper and lower crossbeams.

[0009] An adjustment chamber is provided at one end of the upper crossbeam near the vertical beam, and a counterweight block that can slide horizontally is provided in the adjustment chamber.

[0010] The lower crossbeam includes a sleeve and a movable tube that is horizontally slidably disposed within the sleeve, with the end of the sleeve away from the movable tube fixedly connected to the vertical beam.

[0011] Furthermore, a guide rod is fixedly connected to the inner wall of the adjustment chamber along the length of the upper crossbeam, and the guide rod passes through the counterweight and is slidably connected to the counterweight; a screw rod is rotatably connected to the inner wall of the adjustment chamber along the length of the upper crossbeam, and the screw rod passes through the counterweight and is threadedly connected to the counterweight; a handle is fixedly connected to the end of the screw rod near the vertical beam that protrudes from the upper crossbeam.

[0012] Furthermore, a first limiting ring is fixedly provided on the inner wall of the sleeve near one end of the moving tube, and a second limiting ring is provided on the outer wall of the moving tube, with the second limiting ring located on the side of the first limiting ring near the vertical beam.

[0013] Furthermore, the lower end of the sleeve is provided with at least one bolt hole, and a fastening nut is fixedly provided on the outer periphery of the bolt hole, and a fastening bolt is threaded into the fastening nut.

[0014] Furthermore, a protrusion is provided at the top of the end of the movable tube away from the sleeve, and the upper end of the protrusion is flush with the upper end of the sleeve.

[0015] Furthermore, rubber pads are provided at the upper end of the sleeve and the upper end of the protrusion.

[0016] Furthermore, the lifting assembly includes a plurality of lifting lugs fixedly disposed on the top of the lifting device body, a set of narrow lifting lugs and a set of wide lifting lugs, wherein the wide lifting lugs are disposed on the outside of the narrow lifting lugs.

[0017] Furthermore, a groove is provided at one end of the lower crossbeam near the vertical beam.

[0018] By adopting the aforementioned technical solution, the beneficial effects of this utility model are:

[0019] 1. Setting a counterweight can adjust the balance position of the lifting device. By rotating the handle, the lead screw is rotated, causing the counterweight to move horizontally, thereby changing the center of gravity of the lifting device. This can effectively adjust the balance of the lifting device and ensure that the lifting device remains in a horizontal state during the lifting of tower sections. This avoids tower section slippage accidents caused by unstable center of gravity of the device and improves the safety of the device.

[0020] 2. By setting a sleeve and a sliding tube inside the sleeve, the length of the lower crossbeam can be adjusted, making the lifting device suitable for tower sections of different sizes. This provides strong applicability and effectively supports the inner top wall of the tower section, preventing the tower section from tilting and slipping due to an excessively short lower crossbeam.

[0021] 3. By setting up lifting components to connect external lifting equipment for overall lifting of lifting tools and tower sections, and utilizing various combinations of a set of narrow lifting lugs and a set of wide lifting lugs, the specific combination can be selected on-site according to the actual situation, which increases the equipment's center of gravity adjustment capability and prevents the lifting tool from tilting due to center of gravity shift. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 yes Figure 1 A magnified view of A in the middle.

[0024] In the diagram: 1. Upper crossbeam; 11. Adjustment chamber; 12. Counterweight; 13. Guide rod; 14. Lead screw; 15. Handle; 2. Lower crossbeam; 21. Sleeve; 22. Moving tube; 23. First limiting ring; 24. Second limiting ring; 25. Bolt hole; 26. Fastening nut; 27. Fastening bolt; 28. Protrusion; 29. ​​Groove; 3. Vertical beam; 4. Rubber pad; 51. Narrow lifting lug; 52. Wide lifting lug. Detailed Implementation

[0025] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0026] refer to Figure 1 and Figure 2 This embodiment provides a C-type lifting tool for tower sections, including a lifting tool body and a lifting assembly disposed on the top of the lifting tool body, wherein the lifting tool body is C-shaped.

[0027] The main body of the lifting device includes an upper crossbeam 1, a lower crossbeam 2, and a vertical beam 3 connecting the upper crossbeam 1 and the lower crossbeam 2.

[0028] An adjustment chamber 11 is provided at one end of the upper crossbeam 1 near the vertical beam 3, and a counterweight 12 that can slide in the horizontal direction is provided in the adjustment chamber 11.

[0029] The lower crossbeam 2 includes a sleeve 21 and a movable tube 22 that is horizontally slidably disposed within the sleeve 21. The end of the sleeve 21 away from the movable tube 22 is fixedly connected to the vertical beam 3.

[0030] In this specific embodiment, a guide rod 13 is fixedly connected to the inner wall of the adjustment chamber 11 along the length of the upper crossbeam 1. The guide rod 13 passes through the counterweight 12 and is slidably connected to the counterweight 12. A lead screw 14 is rotatably connected to the inner wall of the adjustment chamber 11 along the length of the upper crossbeam 1. The lead screw 14 passes through the counterweight 12 and is threadedly connected to the counterweight 12. One end of the lead screw 14 near the vertical beam 3 protrudes from the upper crossbeam 1 and is fixedly connected to a handle 15. By rotating the handle 15, the lead screw 14 rotates, causing the counterweight 12 to move horizontally. This effectively adjusts the balance of the lifting device body, ensuring that the lifting device body remains horizontal during tower section lifting, avoiding tower section slippage accidents caused by device tilting, and improving the safety of the device.

[0031] In this specific embodiment, a first limiting ring 23 is fixedly provided on the inner side wall of the sleeve 21 near the end of the moving tube 22, and a second limiting ring 24 is provided on the outer side wall of the moving tube 22. The second limiting ring 24 is located on the side of the first limiting ring 23 near the vertical beam 3. By providing the first limiting ring 23 and the second limiting ring 24, the second limiting ring 24 can be locked inside the sleeve 21, thereby preventing the moving tube 22 from slipping off the sleeve 21.

[0032] In this specific embodiment, the lower end of the sleeve 21 is provided with at least one bolt hole 25, and a fastening nut 26 is fixedly provided on the outer periphery of the bolt hole 25. A fastening bolt 27 is threadedly connected to the fastening nut 26. By tightening the fastening bolt 27, the fastening bolt 27 can be pressed against the moving tube 22, increasing the friction between the top of the second limiting ring 24 and the sleeve 21, preventing the moving tube 22 from sliding, thereby fixing the moving tube 22.

[0033] In this specific embodiment, a protrusion 28 is provided at the top of the end of the movable tube 22 away from the sleeve 21, and the upper end of the protrusion 28 is flush with the upper end of the sleeve 21. By providing the protrusion 28, the inner top wall of the rear end of the tower section is effectively supported, preventing the tower section from tilting and slipping.

[0034] In this specific embodiment, rubber pads 4 are provided at the upper end of the sleeve 21 and the upper end of the protrusion 28. The rubber pads 4 can increase the friction between the lower crossbeam 2 and the tower section, prevent the tower section from slipping off, and at the same time play a buffering role to protect the surface of the tower section.

[0035] In this specific embodiment, the lifting assembly includes a set of narrow lifting lugs 51 and a set of wide lifting lugs 52, which are fixedly installed on the top of the lifting device body. The wide lifting lugs 52 are located outside the narrow lifting lugs 51. The various combinations of the narrow lifting lugs 51 and the wide lifting lugs 52 allow for selection based on actual conditions on-site, increasing the device's center of gravity adjustment capability and preventing tilting of the lifting device due to center of gravity shift.

[0036] In this specific embodiment, a groove 29 is provided at one end of the lower crossbeam 2 near the vertical beam 3. The groove 29 is adapted to the flange of the tower section, so that the flange at the front end of the tower section is engaged in the groove 29, increasing the stability of the tower section placement.

[0037] The working principle of this utility model is as follows:

[0038] First, adjust the length of the lower crossbeam 2 according to the tower section size: unscrew the fastening bolt 27 at the bottom of the sleeve 21, slide the moving tube 22 to the appropriate length, and then tighten the fastening bolt 27 to fix it; then connect the external lifting equipment to the lifting assembly, and select any combination of narrow lifting lugs 51 and wide lifting lugs 52 according to the center of gravity of the lifting device; move the lower crossbeam 2 with the external lifting equipment so that the lower crossbeam 2 is inserted into the tower section, and the flange at the front end of the tower section is locked in the groove 29; then perform a trial lift, rotate the handle 15 to rotate the screw 14, so that the counterweight 12 moves horizontally, so that the lifting device is balanced, and then lift it, so as to avoid the tower section slippage accident caused by the tilt of the device, improve the safety of the device, and the whole process is simple and convenient.

[0039] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A C-type lifting tool for tower sections, characterized in that, It includes a lifting device body and a lifting assembly disposed on top of the lifting device body, wherein the lifting device body is C-shaped; The main body of the lifting device includes an upper crossbeam, a lower crossbeam, and a vertical beam connecting the upper crossbeam and the lower crossbeam; An adjustment chamber is provided at one end of the upper crossbeam near the vertical beam, and a counterweight block that can slide horizontally is provided in the adjustment chamber; The lower crossbeam includes a sleeve and a movable tube that is horizontally slidably disposed within the sleeve, with the end of the sleeve away from the movable tube fixedly connected to the vertical beam.

2. The C-type lifting device for tower sections according to claim 1, characterized in that, A guide rod is fixedly connected to the inner wall of the adjustment chamber along the length of the upper crossbeam, and the guide rod passes through the counterweight and is slidably connected to the counterweight. A screw rod is rotatably connected to the inner wall of the adjustment chamber along the length of the upper crossbeam, and the screw rod passes through the counterweight and is threadedly connected to the counterweight. A handle is fixedly connected to the end of the screw rod near the vertical beam that protrudes from the upper crossbeam.

3. The C-type lifting device for tower sections according to claim 1, characterized in that, A first limiting ring is fixedly provided on the inner wall of the sleeve near one end of the moving tube, and a second limiting ring is provided on the outer wall of the moving tube. The second limiting ring is located on the side of the first limiting ring near the vertical beam.

4. The C-type lifting device for tower sections according to claim 1, characterized in that, The lower end of the sleeve is provided with at least one bolt hole, and a fastening nut is fixedly provided on the outer periphery of the bolt hole, and a fastening bolt is threaded into the fastening nut.

5. A C-type lifting device for tower sections according to claim 1, characterized in that, The top of the end of the movable tube away from the sleeve is provided with a protrusion, and the upper end of the protrusion is flush with the upper end of the sleeve.

6. A C-type lifting device for tower sections according to claim 5, characterized in that, Rubber pads are provided at the upper end of the sleeve and the upper end of the protrusion.

7. A C-type lifting device for tower sections according to claim 1, characterized in that, The lifting assembly includes a set of narrow lifting lugs and a set of wide lifting lugs fixedly installed on the top of the lifting device body, with the wide lifting lugs located on the outside of the narrow lifting lugs.

8. A C-type lifting device for tower sections according to claim 1, characterized in that, A groove is provided at one end of the lower crossbeam near the vertical beam.

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