Tower crane pull rod dismounting device

Abstract

The utility model relates to the field of tower crane machinery, and discloses a tower crane pull rod dismantling device which comprises a main beam piece, a transverse connecting beam piece and a vertical connecting beam piece, the main beam piece and the transverse connecting beam piece are respectively and detachably connected to adjacent main limbs of a tower crane stock, the main beam piece and the transverse connecting beam piece are located at the same height, the vertical connecting beam piece is arranged below the main beam piece, and the transverse connecting beam piece is arranged below the vertical connecting beam piece. The vertical connecting beam piece and the main beam piece are detachably connected to the same sleeve frame main limb, the main beam piece, the transverse connecting beam piece and the vertical connecting beam piece are telescopic pieces, the main beam piece and the transverse connecting beam piece can transversely rotate around the sleeve frame main limb, and the end, away from the sleeve frame, of the main beam piece is rotationally connected with a pulley. The end, deviating from the sleeve frame, of the transverse connecting beam piece is transversely and rotationally connected to the main beam piece, the top end of the vertical connecting beam piece is vertically and rotationally connected to the bottom of the main beam piece, and the bottom end of the vertical connecting beam piece can vertically rotate and transversely rotate relative to the sleeve frame main limb. According to the utility model, the ultra-long pull rod larger than 8m can be safely dismantled conveniently, and the problem of potential safety hazards in dismantling the pull rod of the tower crane is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to tower crane mechanical field, concretely relates to a tower crane pull rod dismantling device. BACKGROUND

[0002] Tower crane is the common machinery of high-rise building construction, in order to ensure the stability and wind resistance of tower crane, the pull rod is usually connected between tower crane and building to form the attached wall frame, and the attached wall frame is dismantled step by step before the tower crane is dismantled after construction. The pull rod of attached wall frame is usually connected and fixed on building and tower crane through pin shaft at both ends, and the dismantling of super long pull rod (more than 8m) is generally that the pin shaft on the side of building is knocked out, the pull rod is guided to the side of tower crane through traction rope, and the pull rod is hung on the ground by using tower crane hook. This method belongs to skewing and hoisting when the pull rod is hoisted, and there is great safety hazard. CONTENT OF UTILITY MODEL

[0003] The utility model intends to provide a tower crane pull rod dismantling device to facilitate the safe dismantling of super long pull rod more than 8m.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a tower crane pull rod dismantling device, including main beam piece, transverse connecting beam piece and vertical connecting beam piece, the main beam piece and the transverse connecting beam piece are detachably connected on the adjacent main limbs of the tower crane frame respectively, the main beam piece and the transverse connecting beam piece are located at the same height, the vertical connecting beam piece is arranged below the main beam piece, the vertical connecting beam piece and the main beam piece are detachably connected on the same frame main limb, the main beam piece, the transverse connecting beam piece and the vertical connecting beam piece are all telescopic pieces, the main beam piece and the transverse connecting beam piece can rotate transversely around the frame main limb, the end of the main beam piece away from the frame is rotatably connected with a pulley, the end of the transverse connecting beam piece away from the frame is rotatably connected with the main beam piece transversely, the top end of the vertical connecting beam piece is rotatably connected with the bottom of the main beam piece vertically, and the bottom end of the vertical connecting beam piece can rotate vertically and transversely relative to the frame main limb.

[0005] Preferably, as an improvement, the end of the main beam piece, the transverse connecting beam piece and the vertical connecting beam piece connected with the frame main limb is connected with an ear seat through a pin shaft, the ear seat is connected with a hoop, and the hoop is connected and fixed with the frame main limb.

[0006] Preferably, as an improvement, the end of the transverse connecting beam piece and the vertical connecting beam piece away from the frame main limb is connected with an ear seat through a pin shaft, and the ear seat is fixed on the main beam piece.

[0007] Preferably, as an improvement, a transverse tray is arranged on the hoop connected with the ear seat at the bottom end of the vertical connecting beam piece, an arc-shaped through slot is formed in the tray, and the ear seat at the bottom end of the vertical connecting beam piece is connected in the arc-shaped through slot through a fastener.

[0008] Preferably, as an improvement, the main beam piece, the transverse connecting beam piece and the vertical connecting beam piece are all hydraulic telescopic arms.

[0009] Preferably, as an improvement, the main beam member and the transverse connecting beam member are located outside the transverse connecting rods between the two adjacent main limbs of the frame.

[0010] Preferably, as an improvement, a transverse connecting rod is connected between the main limb of the frame and the end of the transverse connecting beam member.

[0011] Preferably, as an improvement, one transverse connecting beam member is arranged on each of the left and right sides of the main beam member, the main beam member and the vertical connecting beam member are hydraulic telescopic arms, and the transverse connecting beam member is a hand-operated hoist or an electric hoist.

[0012] The principle and advantages of the scheme are as follows: in actual application, the main limb of the frame provides support, the main beam member, the transverse connecting beam member and the vertical connecting beam member are installed on the main limb of the frame above the super-long pull rod to be removed, the main beam member serves as the main hoisting support member, the pulley at the end thereof serves as the support point of the steel wire rope sling, the transverse connecting beam member and the main beam member form a planar stable triangular support, the transverse connecting beam member ensures that the main beam member does not deviate in the horizontal plane; the vertical connecting beam member and the main beam member form a vertical plane stable triangular support, the telescopic structure and the pin shaft connection mode are adopted to enable the main beam member, the transverse connecting beam member and the vertical connecting beam member to be adjusted in length according to actual needs to form a spatial support structure with appropriate dimensions, the ear seat at the bottom end of the vertical connecting beam member is installed in the arc-shaped sliding groove by means of the fastener to enable the ear seat to have a transverse adjustment space, the vertical connecting beam member can be transversely rotated and adjusted according to the position of the main beam member, the vertical connecting beam member can be stably and reliably connected with the main beam member to form a support, and the transverse connecting beam member and the main beam member can be rotated in the horizontal plane to realize the removal and hoisting of multiple super-long pull rods in the same horizontal plane. The transverse connecting rods on the frame can enhance the stability of the structure formed by the main beam member and the transverse connecting beam member. After the main beam member, the transverse connecting beam member and the vertical connecting beam member are stably installed, the steel wire rope with a lifting hook is lowered from the winch at the top of the tower crane and the hoisting arm pulley system, the steel wire rope is lowered from the support of the pulley at the end of the main beam member, and then the super-long pull rod to be removed can be stably and reliably hung, and then the super-long pull rod is gradually and stably lowered to the ground after the connecting members at the two ends of the super-long pull rod are removed. In this way, the removed super-long pull rod is kept in a stable state and is stable during the lowering process, the steel wire rope is kept vertical, and the safety hazards existing in the oblique hoisting of the prior art are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a top view of the embodiment 1 of the utility model.

[0014] Figure 2 It is a side view of the embodiment 1 of the utility model.

[0015] Figure 3 It is a top view of the support hoop in the embodiment 1 of the utility model.

[0016] Figure 4The structure schematic view of the support hoop and the ear seat connection in the embodiment 1 of the utility model.

[0017] Figure 5 The steel wire rope winding schematic view when the embodiment 1 of the utility model is applied. Specific implementation

[0018] The following is further explained in detail by specific implementation:

[0019] The reference signs in the drawings of the specification include: main limb 1, main beam piece 2, transverse connecting beam piece 3, vertical connecting beam piece 4, pulley 5, transverse connecting rod 6, hoop 7, ear seat 8, support hoop 9, back plate 10, tray 11, top plate 12, arc-shaped through slot 13, adjusting bolt 14, winch 15, steel wire rope 16, lifting hook 17.

[0020] Embodiment 1, basically as shown in the accompanying Figure 1 、 Figure 2 : a tower crane pull rod removal device, including main beam piece 2, transverse connecting beam piece 3 and vertical connecting beam piece 4, main beam piece 2, transverse connecting beam piece 3 and vertical connecting beam piece 4 are all hydraulic telescopic rods. The two ends of transverse connecting beam piece 3 and vertical connecting beam piece 4 are all connected with ear seat 8 through pin shaft, one end of main beam piece 2 pin shaft is connected with ear seat 8, and the other end of main beam piece 2 pin shaft is connected with pulley 5. The ear seat 8 at the end of main beam piece 2 and the ear seat 8 at one end of transverse connecting beam piece 3 are all welded on hoop 7, the hoop 7 at the end of main beam piece 2 is connected on one main limb 1 on the side of tower crane sleeve frame towards building through bolt, the hoop 7 at the end of transverse connecting beam piece 3 is connected on the other main limb 1 on the side of tower crane sleeve frame towards building through bolt, and main beam piece 2 and transverse connecting beam piece 3 are located at the same height, the pin shafts of ear seat 8 connected with the ends of main beam piece 2 and transverse connecting beam piece 3 keep vertical, so that main beam piece 2 and transverse connecting beam piece 3 are connected on the adjacent main limb 1 of tower crane sleeve frame, and main beam piece 2 and transverse connecting beam piece 3 can all rotate horizontally. The ear seat 8 at the end of transverse connecting beam piece 3 away from sleeve frame is welded on the side end of the end of main beam piece 2 where pulley 5 is installed.

[0021] Main beam piece 2 and transverse connecting beam piece 3 are located at the outside of transverse connecting rod 6 between the adjacent two main limbs 1 of sleeve frame, if not set at the place of existing transverse connecting rod 6 of sleeve frame, then a transverse connecting rod 6 is added and connected or welded between the main limb 1 of sleeve frame at the end of main beam piece 2 and transverse connecting beam piece 3, so that main beam piece 2, transverse connecting beam piece 3 and transverse connecting rod 6 form stable horizontal plane triangular support, and transverse connecting beam piece 3 guarantees that main beam piece 2 does not swing in horizontal plane.

[0022] Vertical connecting beam piece 4 is installed obliquely below main beam piece 2, the ear seat 8 at the top end of vertical connecting beam piece 4 is welded on the bottom of the end of main beam piece 2 where pulley 5 is installed, the bottom of the ear seat 8 at the bottom end of vertical connecting beam piece 4 is provided with connecting hole, and support hoop 9 is bolted on the main limb 1 of sleeve frame below the hoop 7 at the end of main beam piece 2,Figure 3 , Figure 4 As shown, the support clamp 9 includes a clamp body and a back plate 10 bolted to the main limb 1 of the sleeve frame. A tray 11 is welded to the top of the clamp body, and a top plate 12 is welded between the bottom of the tray 11 and the clamp body. The top plate 12 provides support and reinforcement for the tray 11. An arc-shaped through groove 13 is provided on the tray 11. The connecting hole of the lug 8 at the bottom of the vertical connecting beam 4 is aligned with the arc-shaped through groove 13 and connected with an adjusting bolt 14 to fix the lug 8 on the tray 11. The arc-shaped through groove 13 allows the lug 8 to have space for horizontal adjustment along the arc shape, so that the vertical connecting beam 4 has the freedom of vertical and horizontal rotation adjustment relative to the main limb 1 of the sleeve frame.

[0023] The specific implementation process is as follows: Figure 5 As shown, the hoisting system consists of the tower crane's own winch 15, wire rope 16, pulley 5, and hook 17. The winch 15 is fixed to the counterweight boom, and the wire rope 16 passes through the tower crane's sheave pulley and is finally lowered from the pulley 5 at the end of the main beam 2 to connect to the hook 17. Figure 4 ).

[0024] This invention provides a method for removing tower crane tie rods, which is carried out according to the following steps:

[0025] Step 1: Weld / bolt the ear seat 8 to the clamp 7 / support clamp 9 in advance, and install the clamp 7 and support clamp 9 on the main body 1 of the sleeve.

[0026] Step 2: On the ground, use pins to connect the main beam 2 and the vertical connecting beam 4, and use hemp rope to bind them together to form a certain angle. Use a tower crane to hoist the main beam 2. After it is in place, first connect the vertical connecting beam 4 to the lug 8 of the support clamp 9 with pins. Do not tighten the adjusting bolt 14 of the lug 8 yet. After the main beam 2 is connected to the lug 8 with pins, adjust the position and tighten it.

[0027] Step 3: Hoist the transverse connecting beam 3. First, connect it to the side lug 8 of the main beam 2 with a pin, and then connect the side lug 8 of the main limb 1 of the sleeve with a pin.

[0028] Step Four: As Figure 5 As shown, the winch 15 is in place, and the wire rope 16 is threaded and connected to the hook 17.

[0029] Step 5: Tie the steel wire rope 16 under the hook 17 to the pull rod, slowly raise it with slight force, release the connecting pins at both ends of the pull rod, and lower the pull rod to the ground.

[0030] The above steps only list the steps for removing the tie rod in one fixed direction. The same method can be repeated in other directions to remove the tie rod. Before using this invention, the positioning should be planned first, and the lengths of the main beam 2, the transverse connecting beam 3, and the vertical connecting beam 4 should be determined. After adjusting and assembling on the ground, installation can proceed.

[0031] When the main girder 2 rotates, the adjusting bolt 14 at the connecting lug 8 of the tray 11 should be loosened, and then fastened after being in place. A rotary support bearing can also be used instead.

[0032] In the embodiment 2, the difference from the embodiment 1 is that one transverse connecting girder is arranged on the left and right sides of the main girder respectively, the main girder and the vertical connecting girder are both hydraulic telescopic arms, and the transverse connecting girder is a hand-operated hoist or an electric hoist. The transverse connecting girder is used to prevent the main girder from deflecting in the horizontal plane. The hoist can be used to replace the hydraulic telescopic arm, and another hoist is used in the other direction of the horizontal plane. The main girder rotates in the horizontal plane by pulling the hoists, so as to remove all the pull rods by using one set of device.

[0033] The above is only the embodiment of the present application, and the well-known specific technical solutions and / or common knowledge of the characteristics are not described in detail. It should be noted that, for those skilled in the art, without departing from the technical solutions of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application. The protection scope of the present application should be subject to the content of the claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. A tower crane boom dismantling device, characterized by: The crane frame comprises a main beam, a transverse connecting beam and a vertical connecting beam, the main beam and the transverse connecting beam are respectively detachably connected to adjacent main limbs of a tower crane frame, the main beam and the transverse connecting beam are located at the same height, the vertical connecting beam is arranged below the main beam and is detachably connected to the same main limb of the frame, the main beam, the transverse connecting beam and the vertical connecting beam are all telescopic members, the main beam and the transverse connecting beam can rotate transversely around the main limb of the frame, the end of the main beam away from the frame is rotationally connected with a pulley, the end of the transverse connecting beam away from the frame is transversely rotationally connected to the main beam, and the top end of the vertical connecting beam is vertically rotationally connected to the bottom of the main beam.

2. The tower crane boom dismantling device according to claim 1, characterized in that: The end of the main beam, the transverse connecting beam and the vertical connecting beam connected to the main limb of the frame is connected with an ear seat through a pin shaft, the ear seat is connected with a hoop, and the hoop is connected and fixed to the main limb of the frame.

3. The tower crane boom dismantling device according to claim 2, characterized in that: The end of the transverse connecting beam and the vertical connecting beam away from the main limb of the frame is connected with an ear seat through a pin shaft, and the ear seat is fixed to the main beam.

4. The tower crane boom dismantling device according to claim 3, characterized in that: A transverse tray is arranged on the hoop connected to the bottom ear seat of the vertical connecting beam, an arc-shaped through slot is formed in the tray, and the bottom ear seat of the vertical connecting beam is connected to the arc-shaped through slot through a fastener.

5. The tower crane boom dismantling device according to claim 4, characterized in that: The main beam, the transverse connecting beam and the vertical connecting beam are all hydraulic telescopic arms.

6. The tower crane boom dismantling device according to claim 4, characterized in that: The main beam and the transverse connecting beam are located outside the transverse connecting rod between the two adjacent main limbs of the frame.

7. The tower crane boom removal device of claim 4, wherein: A transverse connecting rod is connected between the main limbs of the frame at the ends of the main beam and the transverse connecting beam.

8. The tower crane boom removal device of claim 4, wherein: One transverse connecting beam is arranged on each of the left and right sides of the main beam, the main beam and the vertical connecting beam are both hydraulic telescopic arms, and the transverse connecting beam is a hand-operated hoist or an electric hoist.

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