Special pulling mechanism for jacking standard knot

Abstract

The utility model belongs to the field of construction of tower crane standard knots, and particularly relates to a special pulling mechanism for jacking a standard knot. Comprising two supporting pieces of the same structure, a mounting table movably connected to the tops of the two supporting pieces, a first limiting plate and a second limiting plate which are movably connected to the mounting table, and a winch movably connected between the first limiting plate and the second limiting plate. The special dragging mechanism disclosed by the utility model can be used for rapidly, conveniently and safely dragging the standard knot to a target position, can be mounted only once, can penetrate through the jacking process of the whole tower crane, does not need to be dismounted until the tower crane is dismounted, and can be recycled.

Description

Technical Field

[0001] The utility model belongs to the field of tower crane standard section construction, in particular to a special pulling mechanism for lifting the standard section. Background Art

[0002] The development of solar thermal power generation is a national trend. At present, the country vigorously supports solar thermal projects, and the frequency of using tower cranes in projects is also increasing. As the height of concrete towers is getting higher and higher, the required height of tower cranes is also getting higher and higher, which puts more and more stringent requirements on the lifting work of tower cranes.

[0003] The traditional jacking method requires manual dragging, which wastes time, manpower and material resources. In addition, the tower crane required for tower thermal projects is relatively high, and the traditional jacking method has hidden dangers.

[0004] The lifting of a tower crane is accompanied by risks at high altitudes, and one must be extremely careful every time the crane is lifted. However, due to structural reasons, when the tower crane is lifted, there is always a problem that the standard section is too heavy, making it difficult to pull it into place, and the dragging process is relatively dangerous. Utility Model Content

[0005] In view of the various deficiencies in the prior art, the inventor has designed a special pulling mechanism for lifting a standard section through research and development in long-term practice. Before lifting, the special pulling mechanism is fixed to the top end beam position of the lifting frame in advance. When the lifting frame rises to a height sufficient to introduce a standard section, the standard section is lifted to the "empty door" elevation position of the lifting frame using a lifting tool, and then the special pulling mechanism of the utility model is used to pull the standard section through the "empty door" and move it closer to the lifting frame and into position.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A pulling mechanism specially used for standard section lifting comprises two supports with the same structure, a mounting platform movably connected to the tops of the two supports, a first limiting plate and a second limiting plate movably connected to the mounting platform, and a winch movably connected between the first limiting plate and the second limiting plate.

[0008] The upper end of the support member is provided with a support plate, and the support plate is in contact with the bottom surface of the mounting platform. A guide rail is provided on the side of the support plate away from the mounting platform, and a slide groove is provided on the side of the mounting platform close to the support plate, and the slide groove is slidably connected to the guide rail.

[0009] The hoist comprises a motor and a winding roller movably connected to the motor. A traction rope is wound around the winding roller for several turns, one end of the traction rope is fixed to the winding roller, and the other end is connected to a connecting ring, and a hook is fixed to the other end of the connecting ring.

[0010] The mounting platform is provided with movable openings symmetrically along the center line of the length direction as the symmetry axis, and the two movable openings are both opened through the mounting platform.

[0011] Two first connection blocks are provided at the bottom of the first limiting plate, and the two first connection blocks are symmetrically arranged about the vertical center line of the first limiting plate, and a first movable block is provided at the bottom of each first connection block. The first connection block is inserted into the movable opening, and the top of the first movable block abuts against the bottom surface of the mounting platform.

[0012] The second limiting plate includes a lower card plate, an upper card plate fixedly connected to the top of the lower card plate, and two second connecting blocks arranged at the bottom of the lower card plate. A second movable groove is provided in the middle of the top of the lower card plate, and a matching groove is provided at the bottom of the upper card plate at a position corresponding to the second movable groove. Two fixing members are provided at the top of the upper card plate, and the bottom of the fixing members is connected to the inside of the lower card plate.

[0013] Two second connection blocks are provided at the bottom of the second limiting plate. The second connection blocks are inserted into the movable openings. A second movable block is provided at the bottom of each of the second connection blocks. The top of the second movable block abuts against the bottom surface of the mounting platform.

[0014] Furthermore, the two support members are both U-shaped channel steels, and the two support members are arranged opposite to each other with their openings facing each other.

[0015] Furthermore, the support plate is provided with a plurality of support connection holes, the support connection holes penetrate the support plate, and the plurality of support connection holes are evenly distributed along the axial center line of the support plate.

[0016] Furthermore, the support member is also provided with a waist-shaped hole, and two through holes are provided on the sides of the two support members, and a reinforcing fixing rod is inserted between the two opposite through holes.

[0017] Furthermore, the mounting platform is also provided with a plurality of mounting through holes, and the mounting through holes are bolted to the supporting connection holes.

[0018] Furthermore, the connecting ring and the hook are made in one piece.

[0019] Furthermore, the length of the first connecting block is consistent with the depth of the movable opening.

[0020] Furthermore, the width of the upper card plate is smaller than the width of the lower card plate.

[0021] Furthermore, the diameter of the second movable groove is the same as that of the matching groove.

[0022] Furthermore, the length of the second connecting block is consistent with the depth of the movable opening.

[0023] The beneficial effects of the utility model are:

[0024] Compared with the traditional jacking method, the special dragging mechanism of the utility model can drag the standard section to the destination quickly, lightly and safely, and only needs to be installed once. It can run through the entire jacking process of the tower crane without disassembly until the tower crane is dismantled, and can be recycled. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the utility model;

[0026] Figure 2 It is a structural schematic diagram of the mounting platform assembly of the utility model;

[0027] Figure 3 It is a side view of the junction between the mounting platform and the support member of the utility model;

[0028] Figure 4 It is a schematic diagram of the structure of the second limiting plate of the utility model.

[0029] In the attached figure:

[0030] 1-support, 2-mounting platform, 3-first limiting plate, 4-second limiting plate, 5-hook, 6-connecting ring, 7-traction rope, 8-motor, 9-winding roller;

[0031] 11-guide rail, 12-waist-shaped hole, 13-support plate, 14-support connection hole, 15-reinforcement fixing rod;

[0032] 21-movable opening, 22-installation through hole, 23-slide groove;

[0033] 31-first movable groove, 32-first connecting block, 33-first movable block

[0034] 41 - upper clamping plate, 42 - lower clamping plate, 43 - fixing piece, 44 - second connecting block, 45 - second movable block, 46 - second movable groove, 47 - matching groove. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the accompanying drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by ordinary technicians in this field without making creative work should all fall within the scope of protection of this application. In addition, the directional words mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional words used are used to illustrate rather than limit the creation of the present invention.

[0036] The utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0037] See also Figure 1-Figure 4 The utility model is a special pulling mechanism for standard section lifting, comprising two supports 1 of the same structure, a mounting platform 2 movably connected to the top of the two supports 1, a first limiting plate 3 and a second limiting plate 4 movably connected to the mounting platform 2, and a winch movably connected between the first limiting plate 3 and the second limiting plate 4. In this embodiment, the two supports 1 are both U-shaped channel steels, and the two supports 1 are arranged oppositely with their openings facing each other.

[0038] In this embodiment, a support plate 13 is provided at the upper end of the support member 1, and the support plate 13 is in contact with the bottom surface of the mounting platform 2. Since the support plate 13 is in contact with the mounting platform 2, the weight of the winch can be effectively transferred through surface contact, making the support of the support member 1 more stable.

[0039] The support plate 13 is provided with a plurality of support connection holes 14 which penetrate the support plate 13 and are evenly distributed along the axial center line of the support plate 13 . The support connection holes 14 are used to fix the support member 1 and the mounting platform 2 on the top thereof.

[0040] The support member 1 is also provided with a waist-shaped hole 12, which is used to fix the support member 1 on the top end beam of the tower jacking frame. The waist-shaped hole 12 can make the support member 1 adapt to tower jacking frames of different sizes, increase the flexible matching function between the support member 1 and tower jacking frames of different specifications, and make on-site construction more convenient, efficient and safe. Two through holes are provided on the sides of the two support members 1, and a reinforcing fixing rod 15 is inserted between the two opposite through holes. The reinforcing fixing rod 15 passes through the two support members 1, and the two ends of the reinforcing fixing rod 15 are fixed to the support member 1 with bolts. When in use, after the support member 1 is fixed on the top end beam, the reinforcing fixing rod 15 is inserted into the through holes of the two support members 1 in turn and fixed with bolts. At this time, the reinforcing fixing rod 15 is on the bottom surface of the top end beam, which can enhance the fixing strength of the support member 1 on the top end beam and increase the stability of the entire pulling mechanism during operation.

[0041] A guide rail 11 is provided on the side of the support plate 13 away from the mounting platform 2, and a slide groove 23 is provided on the side of the mounting platform 2 close to the support plate 13, and the slide groove 23 is slidably connected to the guide rail 11. In this embodiment, the guide rail 11 and the slide groove 23 are mutually engaged and connected, ensuring a tight fit between the guide rail 11 and the slide groove 23, and also preventing the mounting platform 2 and the support member 1 from deviating when sliding.

[0042] The mounting platform 2 is also provided with a plurality of mounting through holes 22, and the mounting through holes 22 are bolted to the support connection holes 14. After the mounting platform 2 slides to the target position on the support 1, the mounting platform 2 is fixed to the support 1 by bolting the mounting through holes 22 to the support connection holes 14, so that the winch can remain stable during operation.

[0043] The hoist in this embodiment is a 2t hoist, which includes a motor 8 and a winding roller 9 movably connected to the motor 8. A traction rope 7 is wound around the winding roller 9 for several turns, and the traction rope 7 in this embodiment is a steel rope. One end of the traction rope 7 is fixed to the winding roller 9, and the other end is connected to a connecting ring 6, and a hook 5 is fixed to the other end of the connecting ring 6. The connecting ring 6 and the hook 5 in this embodiment are made in an integrated manner, so that the strength is higher when pulling the standard section and it is not easy to break.

[0044] In this embodiment, movable openings 21 are symmetrically arranged on the mounting platform 2 along a center line in the length direction as a symmetry axis, and two movable openings 21 are both opened through the mounting platform 2 .

[0045] Two first connecting blocks 32 are provided at the bottom of the first limiting plate 3, and the two first connecting blocks 32 are symmetrically arranged with respect to the vertical center line of the first limiting plate 3. A first movable block 33 is provided at the bottom of each first connecting block 32. The first connecting block 32 is inserted into the movable opening 21, and the length of the first connecting block 32 is consistent with the depth of the movable opening 21. The top of the first movable block 33 abuts against the bottom surface of the mounting table 2 to ensure that the first connecting block 32 does not move up and down when sliding in the movable opening 21. A first movable groove 31 is provided at the center of the first limiting plate 3, and the first movable groove 31 is circular, and the end of the winding roller 9 away from the motor 8 is placed through the first movable groove 31.

[0046] The second limiting plate 4 includes a lower card plate 42, an upper card plate 41 fixedly connected to the top of the lower card plate 42, and two second connecting blocks 44 arranged at the bottom of the lower card plate 42. The width of the upper card plate 41 is smaller than that of the lower card plate 42. A second movable groove 46 is provided in the middle of the top of the lower card plate 42. A matching groove 47 is provided at the bottom of the upper card plate 41 at a position corresponding to the second movable groove 46. The diameter of the second movable groove 46 and the matching groove 47 are the same. The end of the motor 8 away from the winding roller 9 is placed through the circular hole formed between the second movable groove 46 and the matching groove 47. The first limiting plate 3 and the second limiting plate 4 work together to limit the position of the winch.

[0047] Two fixing members 43 are provided on the top of the upper clamping plate 41, and the bottom of the fixing members 43 is connected to the lower clamping plate 42 to fix the upper clamping plate 41 and the lower clamping plate 42 together. In this embodiment, the fixing members 43 are fixing bolts.

[0048] Two second connection blocks 44 are provided at the bottom of the second limiting plate 4, and the two second connection blocks 44 are symmetrically arranged about the vertical center line of the second limiting plate 4. A second movable block 45 is provided at the bottom of each second connection block 44. The second connection block 44 is inserted into the movable opening 21, and the length of the second connection block 44 is consistent with the depth of the movable opening 21. The top of the second movable block 45 abuts against the bottom surface of the mounting table 2, ensuring that the second connection block 44 does not move up and down when sliding in the movable opening 21.

[0049] When the special pulling mechanism for standard section jacking of the utility model is used, first, the two support members 1 are fixed on the top end beams of the tower jacking frame; then the slide groove 23 of the mounting platform 2 is engaged with the guide rail 11 of the support member 1, the mounting platform 2 slides to the required position on the support member 1, and then the mounting through hole 22 is bolted to the support connecting hole 14 to fix the mounting platform 2 on the support member 1; after the mounting platform 2 is fixed, the winch is placed between the first limiting plate 3 and the second limiting plate 4, the first limiting plate 3 and the second limiting plate 4 are slid, and one end of the motor 8 passes through the circular hole formed between the second movable groove 46 and the matching groove 47, and at the same time, one end of the winding roller 9 passes through the first movable groove 31, and the winch is clamped between the first limiting plate 3 and the second limiting plate 4; finally, one end of the traction rope 7 with the hook 5 is wrapped around the top beam of the standard section that needs to be pulled for several turns and the hook 5 is clamped on the top beam of the standard section, the motor 8 is started, and the standard section is dragged to the required position.

[0050] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims

1. A special pulling mechanism for standard section lifting, characterized in that: The invention comprises two support members (1) of the same structure, a mounting platform (2) movably connected to the top of the two support members (1), a first limiting plate (3) and a second limiting plate (4) movably connected to the mounting platform (2), and a winch movably connected between the first limiting plate (3) and the second limiting plate (4); A support plate (13) is provided at the upper end of the support member (1), and the support plate (13) is in contact with the bottom surface of the mounting platform (2); A guide rail (11) is provided on a side of the support plate (13) away from the mounting platform (2), and a slide groove (23) is provided on a side of the mounting platform (2) close to the support plate (13), wherein the slide groove (23) is slidably connected to the guide rail (11); The hoist comprises a motor (8) and a winding roller (9) movably connected to the motor (8); a traction rope (7) is wound around the winding roller (9) for several turns; one end of the traction rope (7) is fixed to the winding roller (9) and the other end is connected to a connecting ring (6); a hook (5) is fixed to the other end of the connecting ring (6); The mounting platform (2) is symmetrically provided with movable openings (21) along a center line in a longitudinal direction as a symmetry axis, and the two movable openings (21) are both opened through the mounting platform (2); Two first connection blocks (32) are provided at the bottom of the first limiting plate (3), the two first connection blocks (32) are symmetrically arranged about the vertical center line of the first limiting plate (3), and a first movable block (33) is provided at the bottom of each first connection block (32); the first connection block (32) is inserted into the movable opening (21), and the top of the first movable block (33) abuts against the bottom surface of the mounting platform (2); The second limiting plate (4) comprises a lower card plate (42), an upper card plate (41) fixedly connected to the top of the lower card plate (42), and two second connecting blocks (44) arranged at the bottom of the lower card plate (42); a second movable groove (46) is provided in the middle of the top of the lower card plate (42), and a matching groove (47) is provided at a position corresponding to the second movable groove (46) at the bottom of the upper card plate (41); two fixing members (43) are provided at the top of the upper card plate (41), and the bottom of the fixing members (43) is connected to the inside of the lower card plate (42); Two second connection blocks (44) are provided at the bottom of the second limiting plate (4), and the second connection blocks (44) are inserted into the movable opening (21). A second movable block (45) is provided at the bottom of each of the second connection blocks (44), and the top of the second movable block (45) abuts against the bottom surface of the mounting platform (2).

2. A special pulling mechanism for standard section lifting according to claim 1, characterized in that: The two support members (1) are both U-shaped channel steels, and the two support members (1) are arranged opposite to each other with their openings facing each other.

3. The special pulling mechanism for lifting a standard section according to claim 1 is characterized in that: The support plate (13) is provided with a plurality of support connection holes (14), the support connection holes (14) penetrate the support plate (13), and the plurality of support connection holes (14) are evenly distributed along the axial center line of the support plate (13).

4. The special pulling mechanism for standard section lifting according to claim 1 is characterized in that: The support member (1) is also provided with a waist-shaped hole (12), and two through holes are provided on the side surfaces of the two support members (1), and a reinforcing fixing rod (15) is inserted between the two opposite through holes.

5. The special pulling mechanism for standard section lifting according to claim 3 is characterized in that: The mounting platform (2) is also provided with a plurality of mounting through holes (22), and the mounting through holes (22) are bolt-connected to the supporting connection holes (14).

6. The special pulling mechanism for standard section lifting according to claim 1 is characterized in that: The connecting ring (6) and the hook (5) are made in one piece.

7. The special pulling mechanism for lifting a standard section according to claim 1 is characterized in that: The length of the first connecting block (32) is consistent with the depth of the movable opening (21).

8. The special pulling mechanism for standard section lifting according to claim 1 is characterized in that: The width of the upper card plate (41) is smaller than the width of the lower card plate (42).

9. The special pulling mechanism for standard section lifting according to claim 1, characterized in that: The second movable groove (46) and the matching groove (47) have the same diameter.

10. The special pulling mechanism for lifting a standard section according to claim 1, characterized in that: The length of the second connecting block (44) is consistent with the depth of the movable opening (21).

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