Automatic rotating folding platform

Abstract

The present invention relates to an ironmaking blast furnace maintenance platform, and in particular to an automatically rotating and folding platform. The platform comprises a platform body, a guardrail mounted on the platform body, and a main beam, a rotating body, and a folding body. The rotating body is placed on the main beam and connected to the main beam via a crankshaft. A rotating oil cylinder is provided on the main beam and connected to the crankshaft. Folding bodies are provided on both sides of the rotating body, and the folding bodies are connected to the rotating body via a folding oil cylinder. The present invention can automatically unfold and fold within the furnace, making it convenient to enter and exit the blast furnace, thereby improving maintenance work efficiency.

Description

Technical Field

[0001] The invention relates to an ironmaking blast furnace maintenance platform, in particular to an automatic rotating and folding platform. Background Art

[0002] At present, the internal operations of iron-making blast furnaces require the construction of full-floor scaffolding or temporary welding platforms. The construction of scaffolding requires a lot of manpower and material resources, and the construction period is long. In addition, the scaffolding occupies a large space and requires construction workers to work at height, which is very dangerous. The temporary welding platform also requires construction workers to work at height, which poses a safety hazard. Moreover, after the maintenance is completed, the platform is not easy to disassemble and cannot be folded, which can easily affect the progress of the maintenance work. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention proposes an automatic rotating folding platform that can be folded and rotated and is easy to operate.

[0004] The present invention adopts the following technical solutions:

[0005] An automatic rotating folding platform includes a platform body with a guardrail installed on the platform body. The platform body includes a main beam, a rotating body and a folding body. The rotating body is placed on the main beam and connected to the main beam through a crankshaft. A rotating cylinder is provided on the main beam, and the rotating cylinder is connected to the crankshaft. Folding bodies are respectively provided on both sides of the rotating body, and the folding body and the rotating body are connected through a folding cylinder.

[0006] Compared with the prior art, the present invention has the following beneficial effects:

[0007] The invention has a simple structure and is easy to operate. It can be automatically unfolded and folded in the furnace, making it convenient to enter and exit the blast furnace. In addition, the operation time is short, which shortens the maintenance period, avoids affecting the production time of the blast furnace, and reduces the losses caused by production stoppage due to blast furnace maintenance.

[0008] Furthermore, the preferred embodiment of the present invention is:

[0009] A turntable is provided at the center of the rotating body and the main beam respectively, and the two turntables are connected by a crankshaft.

[0010] A rotating oil cylinder seat is arranged on the main beam, a cylinder body of the rotating oil cylinder is hinged to the rotating oil cylinder seat, and a piston cylinder of the rotating oil cylinder is hinged to the crankshaft.

[0011] A folding oil cylinder is provided on one side of the folding body close to the rotating body. The cylinder body of the folding oil cylinder is hinged to the folding body, and the piston rod of the folding oil cylinder is hinged to the rotating body.

[0012] The folding body is connected to the rotating body through a hinge plate.

[0013] A connecting groove 1 is provided at both ends and the middle of the folding body, and a connecting groove 2 is provided at the positions where the two sides of the rotating body are connected to the corresponding folding bodies respectively. The two ends of the hinged plate are correspondingly placed in the connecting groove 1 and the connecting groove 2, and the two ends of the hinged plate are respectively connected to the connecting groove 1 and the connecting groove 2 through the pin shaft 1.

[0014] Lifting ears are provided at both ends of the main beam.

[0015] Telescopic oil cylinders are respectively provided at both ends of the rotating body and the main beam, end plates are provided on the telescopic rods of the telescopic oil cylinders, and guide rods are respectively provided on both sides of the telescopic oil cylinders.

[0016] A notch is provided on a side of the folding body away from the rotating body.

[0017] A mounting seat is provided in the middle of the folding body close to the rotating body. The mounting seat is placed at the bottom of the folding body. The folding cylinder is hinged to the mounting seat through pins 3 on both sides thereof. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 for Figure 1 Bottom view of

[0020] Figure 3 It is a schematic diagram of the structure of the present invention after folding;

[0021] Figure 4 for Figure 3 A-direction view;

[0022] Figure 5 This is a structural diagram of the connection between the rotating body and the main beam;

[0023] Figure 6 for Figure 2 Magnified view of part C;

[0024] Figure 7 It is a structural diagram of a rotating body;

[0025] Figure 8 The structural diagram of the main beam;

[0026] Figure 9 is a schematic diagram of the structure of the folded body;

[0027] Figure 10 for Figure 9 B-direction view;

[0028] In the figure: main beam 1; folding body 2; lower folding body 201; upper folding body 202; rotating body 3; lifting lug 4; end plate 1 5; guide rod 1 6; end plate 2 7; guide rod 2 8; hinged plate 9; fixing seat 10; telescopic cylinder 1 11; telescopic rod 1 1101; fixing seat 12; telescopic cylinder 2 13; telescopic rod 2 1301; rotating cylinder seat 14; rotating cylinder 15; cylinder body 1501; piston rod 1502; folding cylinder 16; cylinder body 2 1601; piston rod 1602; turntable 2 17; mounting seat 18; pin 1 19; pin 3 20; pin 4 21; turntable 1 22; crankshaft 23; connecting plate 24; pin 2 25; connecting slot 2 26; connecting slot 4 27; connecting slot 1 28; connecting slot 3 29; notch 30; square hole 31. DETAILED DESCRIPTION

[0029] The present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0030] See also Figures 1 to 10 :

[0031] An automatic rotating folding platform includes a platform body, which is composed of a main beam 1, a rotating body 3, and folding bodies 2 respectively installed on the left and right sides of the rotating body 3. The main beam 1 is provided with lifting lugs 4 at both ends, and the lifting lugs 4 at the same end are symmetrically arranged on both sides of the main beam 1.

[0032] The rotating body 3 and the main beam 1 are rectangular structures respectively, and the length of the main beam 1 is greater than the length of the rotating body 3. A turntable 1 22 is provided at the center of the rotating body 3, and a turntable 2 17 is provided at the center of the main beam 1. The turntable 1 22 and the turntable 2 17 are connected by a crankshaft 23 (as shown in FIG. Figure 5 As shown, turntable 1 22 is fixedly connected to the upper end of crankshaft 23, and turntable 2 17 is movably connected to the lower end of crankshaft 23. Turntable 1 22 can rotate on turntable 2 17 via crankshaft 23, thereby enabling the rotating body 3 to rotate on the main beam 1 via crankshaft 23. To reduce frictional resistance when the crankshaft 23 rotates on turntable 2 17, a sleeve is installed at the rotation center of turntable 2 17, connecting the crankshaft 23 to turntable 2 17 via the sleeve.

[0033] A rotating cylinder seat 14 is provided near the main beam 1 near the turntable 2 17, and a rotating cylinder 15 is provided on the rotating cylinder seat 14. A connecting plate 24 (such as Figure 5 As shown in FIG1 , the end of the connecting plate 24 is hingedly connected to the rotating cylinder seat 14 via a second pin 25. The end of the piston rod 1502 of the rotating cylinder 15 is hingedly connected to the crankshaft 23. The crankshaft 23 rotates as the piston rod 1502 of the rotating cylinder 15 extends and contracts, thereby causing the rotating body 3 to rotate on the main beam 1.

[0034] like Figure 1 、 4 As shown, a folding body 2 is mounted on each of the left and right sides of the rotating body 3. The folding bodies 2 are trapezoidal in structure. The left and right sides of the rotating body 3 are each connected to a corresponding long side of a folding body 2. A connecting groove 1 28 is provided in the middle of each long side of the folding body 2. The left and right sides of the rotating body 3 are respectively provided with connecting grooves 26 corresponding to the connecting grooves 1 28 of the folding body 2 on their respective sides. A pair of mounting seats 18 are provided at the bottom of each folding body 2. The mounting seats 18 are symmetrically arranged on both sides of the connecting groove 1 28. The folding cylinder 16 is placed between the mounting seats 18. The two sides of the cylinder body 2 1601 of the folding cylinder 16 are respectively hinged to the mounting seats 18 via pins 3 20. The end of the piston rod 2 1602 of the folding cylinder 16 is placed in the connecting groove 26, and the piston rod 26 of the folding cylinder 16 is hinged to the connecting groove 26 via pins 4 21.

[0035] Connecting grooves 3 29 are respectively provided at both ends of the long side of the folding body 2 and on both sides of the connecting groove 1 28. Connecting grooves 4 27 are respectively provided on the left and right sides of the rotating body 3 corresponding to the positions of the connecting grooves 3 29 at both ends of the folding body 2 and the position of the connecting groove 1 28. A hinge plate 9 is provided between the connecting grooves 3 29 and the connecting grooves 4 27. The two ends of the hinge plate 9 are respectively hinged to the connecting grooves 3 29 and the connecting grooves 4 27 through the pin shaft 19.

[0036] like Figure 4 As shown, the two folding bodies 2 are respectively a lower folding body 201 and an upper folding body 202, the upper folding body 202 is on the left side of the rotating body 3, and the folding body 2 on the right side of the rotating body 3 is the lower folding body 201. After the folding action is completed, the upper folding body 202, the lower folding body 201 and the rotating body 3 form a three-layer structure, in which the rotating body 3 is placed on the bottom layer, the lower folding body 201 is placed on the middle layer, and the upper folding body 202 is placed on the top layer.

[0037] In this embodiment, Figure 3 As shown in Figures 4 and 5, a notch 30 is respectively provided in the middle of the short sides of the upper folding body 202 and the lower folding body 201 (the upper folding body 202 and the lower folding body 201 are respectively trapezoidal structures, the short sides are the upper bases of the trapezoidal structures, and the long sides are the lower bases of the trapezoidal structures). The notch 30 of the upper folding body 202 corresponds to the second connecting groove 26 on the right side of the rotating body 3, so that the second piston rod 1602 of the folding cylinder 16 on the lower folding body 201 is placed in the notch 30 of the upper folding body 202; the notch 30 of the lower folding body 201 corresponds to the second connecting groove 26 on the left side of the rotating body 3, so that the second piston rod 1602 of the folding cylinder 16 on the upper folding body 202 is placed in the notch 30 of the lower folding body 201.

[0038] In this embodiment, Figure 1 、 7As shown, since the upper folding body 202 is placed on the top layer when folded, in order to facilitate the folding of the upper folding body 202, the depth of the connecting groove four 27 on the left side of the rotating body 3 can be greater than the connecting groove four 27 on the right side, and the length of the hinge plate 9 connecting the left side of the rotating body 3 with the upper folding body 202 should be greater than the hinge plate 9 connecting the right side of the rotating body 3 with the lower folding body 201.

[0039] like Figure 2 As shown, a fixing seat 10 with a guide hole is respectively provided at both ends of the main beam 1, and the fixing seat 10 is placed at the bottom of the main beam 1. A telescopic cylinder 11 is fixedly installed on each fixing seat 10. The telescopic rod 1101 of the telescopic cylinder 11 extends out of the end of the main beam 1 and the end of the telescopic rod 1101 is fixedly welded to the end plate 5 arranged outside the main beam 1. Guide rods 6 are symmetrically provided on both sides of the telescopic rod 1101. One end of the guide rod 6 extends out of the end of the main beam 1 and is fixedly welded to the end plate 5, and the other end passes through the guide hole on the fixing seat 10. The end plate 5 performs telescopic movement with the telescopic rod 1101. At the same time, the guide rod 6 can prevent the telescopic rod 1101 from tilting during the movement.

[0040] like Figure 2 As shown, a second fixing seat 12 with a guide hole is provided at each end of the rotating body 3. The second fixing seat 12 is placed at the bottom of the rotating body 3. A second telescopic cylinder 13 is fixedly mounted on each fixing seat 12. The telescopic rod 1301 of the telescopic cylinder 13 extends out of the end of the rotating body 3 and the end of the telescopic rod 1301 is welded to the end plate 7 disposed outside the rotating body 3. Guide rods 8 are provided on both sides of the telescopic rod 1301. One end of the guide rod 8 extends out of the end of the rotating body 3 and is welded to the end plate 7. The other end passes through the guide hole of the second fixing seat 12. The end plate 7 moves telescopically with the telescopic rod 1301. At the same time, the guide rods 8 can prevent the telescopic rod 1301 from tilting during movement.

[0041] In this embodiment, the folding cylinder 16, the rotating cylinder 15, the telescopic cylinder 11 and the telescopic cylinder 2 13 are respectively connected to the 14Mpa hydraulic station through hydraulic pipelines, and the hydraulic station is connected to the distribution cabinet. The hydraulic station in this embodiment is a wireless remote control hydraulic station of Dezhou Zhonghao Hydraulic Machinery Factory, which realizes remote operation and one-button start and stop.

[0042] When this embodiment is used, the platform body is in a folded state and entered through the manhole on the top of the blast furnace through the lifting equipment, and the power supply is connected to the hydraulic station at the furnace mouth. The remote control is remotely operated to make the piston rod 1502 of the rotating cylinder 15 push the rotating body 3 to rotate 90° clockwise, so that the rotating body 3 is perpendicular to the main beam 1, and then the piston rod 2 1602 of the folding cylinder 16 on the upper folding body 202 is retracted to make the upper folding body 202 unfold, and make the upper folding body 202 and the rotating body 3 in the same plane, and then the piston rod 2 1602 of the folding cylinder 16 on the lower folding body 201 is retracted to make the lower folding body 201 unfold, so that the lower folding body 201 and the rotating body 3 are in the same plane. At this time, the platform body is fully unfolded, and then after the construction personnel install the guardrail on the edge of the platform body, the furnace maintenance work begins.

[0043] In this embodiment, the folding body 2, the rotating body 3 and the main beam 1 are respectively steel frame structures, and a steel plate is welded on the top of the steel frame. The main beam 1 is provided with square holes 31 at the positions corresponding to the two folding cylinders 16, so that after the platform body is unfolded, the folding cylinders 16 are placed under the top plate of the main beam 1 to ensure the flatness of the platform body.

[0044] The rotary folding platform is easy to operate and can be started and stopped with one button via a remote control, which shortens the installation period of the platform and the production stoppage period due to maintenance, thereby reducing production losses.

[0045] The above is only a specific implementation method of the present invention, but the protection of the present invention is not limited to this. All equivalent changes or replacements of the technical features of the technical solution that can be thought of by technicians in this technical field are included in the protection scope of the present invention.

Claims

1. An automatic rotating folding platform, comprising a platform body, a guardrail mounted on the platform body, characterized in that: The platform body includes a main beam, a rotating body and a folding body. The rotating body is placed on the main beam and connected to the main beam through a crankshaft. A rotating cylinder is provided on the main beam and connected to the crankshaft. Folding bodies are provided on both sides of the rotating body, and the folding bodies are connected to the rotating body through a folding cylinder. A folding body is respectively installed on the left and right sides of the rotating body. The folding body has a trapezoidal structure. The left and right sides of the rotating body are respectively connected to the long side of a folding body. A connecting groove 1 is respectively provided in the middle of the long side of each folding body. The left and right sides of the rotating body are respectively provided with a connecting groove 2 corresponding to the connecting groove 1 of the folding body on their respective sides; a pair of mounting seats are provided at the bottom of each folding body, and the mounting seats are symmetrically arranged on both sides of the connecting groove 1. The folding cylinder is placed between the mounting seats, and the two sides of the cylinder body 2 of the folding cylinder are respectively hinged to the mounting seats through the pin shaft 3. The end of the piston rod 2 of the folding cylinder is placed in the connecting groove 2, and the piston rod 2 of the folding cylinder is hinged to the connecting groove 2 through the pin shaft 4; Connecting slots 3 are provided at both ends of the long side of the folding body and on both sides of the connecting slot 1, respectively. Connecting slots 4 are provided on the left and right sides of the rotating body corresponding to the positions of the connecting slot 3 on the folding body, respectively. A hinge plate is provided between the connecting slots 3 and 4, and the two ends of the hinge plate are hinged to the connecting slots 3 and 4 respectively through the pin shaft 1; The two folding bodies are respectively a lower folding body and an upper folding body. The upper folding body is on the left side of the rotating body, and the folding body on the right side of the rotating body is the lower folding body. After the folding action is completed, the upper folding body, the lower folding body and the rotating body form a three-layer structure, in which the rotating body is placed at the bottom layer, the lower folding body is placed in the middle layer, and the upper folding body is placed at the top layer. A notch is provided in the middle of the short sides of the upper folding body and the lower folding body respectively. The notch of the upper folding body corresponds to the second connecting groove on the right side of the rotating body, so that the second piston rod of the folding cylinder on the lower folding body is placed in the notch of the upper folding body; the notch of the lower folding body corresponds to the second connecting groove on the left side of the rotating body, so that the second piston rod of the folding cylinder on the upper folding body is placed in the notch of the lower folding body; The upper folding body is placed on the top layer when folding. To facilitate the folding of the upper folding body, the depth of the connecting groove 4 on the left side of the rotating body is greater than the connecting groove 4 on the right side; the length of the hinge plate connecting the left side of the rotating body to the upper folding body is greater than the hinge plate connecting the right side of the rotating body to the lower folding body; The platform body is in folded state and is entered through the manhole on the top of the blast furnace through the lifting equipment. The hydraulic station at the furnace mouth is connected to the power supply, and the remote control is remotely operated to make the piston rod of the rotating cylinder push the rotating body to rotate 90° clockwise, so that the rotating body is perpendicular to the main beam, and then the platform body is fully unfolded.

2. The automatic rotating folding platform according to claim 1, characterized in that: A turntable is provided at the center of the rotating body and the main beam respectively, and the two turntables are connected by a crankshaft; telescopic cylinders are provided at both ends of the rotating body and the main beam respectively, end plates are provided on the telescopic rods of the telescopic cylinders, and guide rods are provided on both sides of the telescopic cylinders respectively.

3. The automatic rotating folding platform according to claim 1, characterized in that: A rotating oil cylinder seat is arranged on the main beam, a cylinder body of the rotating oil cylinder is hinged to the rotating oil cylinder seat, and a piston cylinder of the rotating oil cylinder is hinged to the crankshaft.

4. The automatic rotating folding platform according to claim 1, characterized in that: Lifting ears are provided at both ends of the main beam.

Images