Inverted annular material distribution device for large-diameter welded steel plate silo

Abstract

The invention relates to the technical field of silo installation, in particular to an inverted annular material distribution device for a large-diameter welded steel plate silo. A fixing frame is arranged in the center of the top of the silo top, a sleeve is rotationally connected to the top of the fixing frame, a cross beam is connected to the side wall of the sleeve and downwards inclines along the inclined plane of the silo top, a pulley yoke perpendicular to the inclined plane of the silo top is arranged at the bottom end of the cross beam, and a pulley slidably connected with the inclined plane of the silo top is arranged on the pulley yoke. A winch is arranged in the middle of the top face of the cross beam, a fixed pulley is arranged at the bottom end of the cross beam, and a steel wire rope on the winch is wound around the fixed pulley and droops to the position below the bin top. By adopting an annular material distribution scheme, the mechanical machine team of a tire crane on a construction site is saved, meanwhile, the difficulty that the space of the construction site is limited is effectively overcome, and the installation and construction efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of silo installation, in particular to an inverted annular material distribution device for a large-diameter welded steel plate silo. Background Art

[0002] Large storage structures have large diameters and high aspect ratios. They are subject to many restrictions and difficulties in terms of site, transportation, and lifting equipment. Most of them avoid the overall prefabrication and overall lifting construction method, and choose the inverted installation method for silo installation. In the traditional inverted installation method, a tire crane is used to lift the prefabricated cylinder wall sections. As the cylinder wall is raised, the arm of the tire crane is extended, and the lifting performance is reduced. Therefore, it is necessary to use a fall chain to drag the cylinder wall section or constantly adjust the crane position to lift the cylinder wall section to the installation location. As a result, the on-site construction man-days or equipment shifts are inflated, which not only causes ineffective costs, but also delays the progress of the project. Summary of the invention

[0003] The present invention aims to solve the above-mentioned problem, thereby providing a large-diameter welded steel plate silo inverted annular material distribution device with improved installation efficiency.

[0004] The present invention solves the above-mentioned problem by adopting the following technical solution: The invention discloses an inverted annular material distribution device for a large-diameter welded steel plate silo, comprising a truncated cone-shaped silo roof, a fixed frame is arranged at the top center of the silo roof, a sleeve is rotatably connected to the top of the fixed frame, a crossbeam is connected to the side wall of the sleeve, the crossbeam is arranged to be inclined downward along the silo roof slope, and a pulley frame perpendicular to the silo roof slope is arranged at the bottom end of the crossbeam, a pulley slidably connected to the silo roof slope is arranged on the pulley frame, a driving mechanism connected to the pulley is arranged in the pulley frame, a winch is arranged in the middle of the top surface of the crossbeam, a fixed pulley is arranged at the bottom end of the crossbeam, and a steel wire rope on the winch passes around the fixed pulley and hangs down to below the silo roof.

[0005] Compared with the prior art, the present invention adopting the above technical solution has the following outstanding features: By adopting the circular material distribution scheme, the cylinder wall sections can be hoisted to a fixed working platform using a tire crane, and then the up and down movement of the cylinder wall sections can be controlled by a winch, and the driving mechanism can drive the cylinder wall sections to move in a circular direction. This not only saves the mechanical man-hours of the tire crane on the construction site, but also effectively overcomes the difficulty of limited space on the construction site and improves the installation and construction efficiency.

[0006] Preferably, a further technical solution of the present invention is: Furthermore, the fixing frame includes a positioning plate, a plurality of diagonal braces are arranged between the bottom of the positioning plate and the top center of the warehouse roof, and a rotating shaft rotatably connected to the sleeve is arranged on the top of the positioning plate.

[0007] Furthermore, the pulley frame includes two portal frames located above the inclined surface of the warehouse roof and with openings facing each other. A T-shaped connecting frame is vertically connected to the bottom surface of the beam. Both ends of the horizontal section of the connecting frame are respectively connected to the middle of the portal frame opening, and the pulley is connected between the ends of the two portal frames.

[0008] Furthermore, triangular support frames are arranged between the far-away sides of the two portal frames and the bottom surface of the crossbeam.

[0009] Furthermore, the driving mechanism includes a fixed box fixed on the horizontal section of the connecting frame, a first bevel gear is fixed on one side of one pulley, a driving motor is arranged in the fixed box, and an output end of the driving motor passes downward through the fixed box and is connected to a second bevel gear meshing with the first bevel gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the main structure of an embodiment of the present invention; Figure 3 It is a schematic diagram of the side structure of an embodiment of the present invention; Figure 4 Based Figure 1 A is a schematic diagram of the partially enlarged structure of the middle part; Marked in the figure are: warehouse roof 1, fixed frame 2, sleeve 3, cross beam 4, pulley 5, fixed pulley 6, winch 7, limit block 8, portal frame 9, connecting frame 10, support frame 11, fixing box 12, first bevel gear 13, second bevel gear 14. DETAILED DESCRIPTION

[0011] The present invention will be further described below in conjunction with embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0012] A large-diameter welded steel plate silo inverted annular material distribution device comprises a truncated cone-shaped silo roof 1, a fixing frame 2 is arranged at the top center of the silo roof 1, a sleeve 3 is rotatably connected to the top of the fixing frame 2, the sleeve 3 is placed longitudinally, a crossbeam 4 is connected to the side wall of the sleeve 3, the crossbeam 4 is arranged downwardly along the inclined surface of the silo roof 1, and a pulley frame perpendicular to the inclined surface of the silo roof 1 is arranged at the bottom end of the crossbeam 4, a pulley 5 slidably connected to the inclined surface of the silo roof 1 is arranged on the pulley frame, and a pulley 5 is arranged in the pulley frame. A driving mechanism is connected to the pulley 5, a winch 7 is arranged in the middle of the top surface of the cross beam 4, a fixed pulley 6 is arranged at the bottom end of the cross beam 4, the wire rope on the winch 7 passes around the fixed pulley 6 and hangs down to the bottom of the silo roof 1, a limit block 8 is arranged at the position where the wire rope is located below the fixed pulley 6, the wire rope below the limit block 8 is divided into two strands, the winch 7 adjusts the up and down position of the cylinder wall section, and the driving mechanism drives the cross beam 4 to rotate along the inclined surface of the silo roof 1 with the sleeve 3 as the axis, thereby adjusting the left and right position of the cylinder wall section.

[0013] Furthermore, the fixing frame includes a positioning plate, a plurality of diagonal braces are arranged between the bottom of the positioning plate and the top center of the warehouse roof, and a rotating shaft to which the sleeve 3 is rotatably connected is arranged at the top of the positioning plate.

[0014] Furthermore, the pulley frame includes two portal frames 9 located above the inclined surface of the warehouse roof 1 and with openings facing each other. A T-shaped connecting frame 10 is vertically connected to the bottom surface of the beam 4. The top of the vertical section of the connecting frame 10 is fixed to the bottom surface of the beam 4, and the two ends of the horizontal section of the connecting frame 10 are respectively connected to the middle of the opening of the portal frame 9. The pulley 5 is connected between the ends of the two portal frames 9. The driving mechanism drives the two pulleys 5 to move the entire device on the inclined surface of the warehouse roof 1, one of which is a driving wheel and the other is a driven wheel.

[0015] Furthermore, triangular support frames 11 are provided between the far-away sides of the two portal frames 9 and the bottom surface of the cross beam 4 to ensure firmness.

[0016] Furthermore, the driving mechanism includes a fixed box 12 fixed on the horizontal section of the connecting frame 10, the middle part of the fixed box 12 is fixed on the horizontal section of the connecting frame 10, and a pad is welded between the middle part of the fixed box 12 and the horizontal section of the connecting frame 10. A first bevel gear 13 is fixed to one side of one of the pulleys 5, and a driving motor is arranged in the fixed box 12. The output end of the driving motor passes downward through the fixed box 12 and is connected to a second bevel gear 14 meshing with the first bevel gear 13. The driving motor drives the second bevel gear 14 to rotate, thereby driving the first bevel gear 13 and the active pulley connected thereto to rotate, and driving the other pulley to move accordingly.

[0017] By adopting the circular material distribution scheme, the cylinder wall section can be hoisted to a fixed working platform using a tire crane, and then the up and down movement of the cylinder wall section can be controlled by a winch. The driving motor drives the pulley to rotate through gear meshing and then drives the cylinder wall section to move in a circular direction. This not only saves the mechanical man-hours of the tire crane on the construction site, but also effectively overcomes the difficulty of limited space on the construction site and improves the installation and construction efficiency.

[0018] The above description is only a preferred feasible embodiment of the present invention, and does not limit the scope of rights of the present invention. All equivalent changes made using the contents of the present specification and its drawings are included in the scope of rights of the present invention.

Claims

1. A large diameter welded steel plate silo inverted annular material distribution device, including a truncated cone-shaped silo roof, characterized in that: A fixed frame is provided at the top center of the silo roof, and a sleeve is rotatably connected to the top of the fixed frame. A crossbeam is connected to the side wall of the sleeve, and the crossbeam is inclined downward along the silo roof slope, and a pulley frame perpendicular to the silo roof slope is provided at the bottom end of the crossbeam, a pulley slidably connected to the silo roof slope is provided on the pulley frame, a driving mechanism connected to the pulley is provided in the pulley frame, a winch is provided in the middle of the top surface of the crossbeam, and a fixed pulley is provided at the bottom end of the crossbeam, and a wire rope on the winch passes around the fixed pulley and hangs down to the bottom of the silo roof.

2. The method for inverted annular material distribution of large diameter welded steel plate silo according to claim 1 is characterized in that: The fixing frame comprises a positioning plate, a plurality of diagonal braces are arranged between the bottom of the positioning plate and the top center of the bin top, and a rotating shaft rotatably connected to the sleeve is arranged on the top of the positioning plate.

3. The method for inverted annular material distribution of large diameter welded steel plate silo according to claim 1 is characterized in that: The pulley frame includes two portal frames located above the inclined surface of the warehouse roof and with openings facing each other. A T-shaped connecting frame is vertically connected to the bottom surface of the crossbeam. The two ends of the horizontal section of the connecting frame are respectively connected to the middle of the portal frame opening, and the pulley is connected between the ends of the two portal frames.

4. The method for inverted annular material distribution of large diameter welded steel plate silo according to claim 3 is characterized in that: A triangular support frame is arranged between the far-away sides of the two portal frames and the bottom surface of the crossbeam.

5. The method for inverted annular material distribution of large diameter welded steel plate silo according to claim 3 is characterized in that: The driving mechanism includes a fixed box fixed on the horizontal section of the connecting frame, a first bevel gear is fixed on one side of one pulley, a driving motor is arranged in the fixed box, and the output end of the driving motor passes through the fixed box downward and is connected to a second bevel gear meshing with the first bevel gear.

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