Steel framework hoisting equipment and hoisting method

Abstract

The invention relates to the technical field of house building steel structure hoisting, solves the problem that a steel framework needs secondary hoisting at present, and discloses steel framework hoisting equipment and a hoisting method.The steel framework hoisting equipment comprises a first tower crane and a second tower crane, and a transport vehicle parking space is formed between the first tower crane and the second tower crane; the first tower crane is provided with a first lifting arm and a rotary matching lifting arm, the second tower crane is provided with a second lifting arm, the first lifting arm, the rotary matching lifting arm and the second lifting arm are each provided with two traction cables which are arranged at intervals and provided with lifting hooks, and a connecting frame is installed on the rotary matching lifting arm. A hinge seat is mounted on the side edge of the connecting frame, when the steel framework is lifted upwards in the transverse posture, one end of the steel framework can abut against the hinge seat in a matched mode so that the steel framework can rotate around the hinge seat, the steel framework can be lifted and mounted at a time, and secondary lifting is not needed.

Description

Technical Field

[0001] The present application relates to the technical field of steel structure hoisting for building construction, and in particular to a steel frame hoisting device and a hoisting method. Background Art

[0002] Currently, certain mechanical equipment is frequently used in the building construction industry, including steel frames, which are primarily hoisted using cranes. The typical hoisting method is symmetrical, which involves installing lifting lugs on both sides of the steel frame and then using a crane to lift the two points. However, this method requires that the steel frame be transported in the installed position.

[0003] For some long steel structures that need to be installed in a vertical direction, they cannot be transported in a vertical position directly due to their length. Instead, they need to be transported in a horizontal position. Therefore, they need to be hoisted in steps. Generally, the steel structure is first hoisted to the designated location using a symmetrical hoisting method. Then, a rotating hinge is set on the ground and the crane is used to rotate the steel structure around the hinge to achieve an upright position.

[0004] In this way, the steel components not only need to be hoisted in two times, but also need to be additionally installed with rotating hinges on the ground for hoisting. At the same time, the steel components are prone to damage and deformation when they are delivered horizontally to the ground, making the overall construction inconvenient. Summary of the Invention

[0005] The present application discloses a steel frame hoisting device and a hoisting method, which can hoist and install the steel frame in one go without the need for secondary hoisting.

[0006] In a first aspect, the present application provides a steel frame hoisting device, which adopts the following technical solution: The yoke is provided with a first arm and a second arm for rotating the yoke, and the yoke is provided with a second arm for rotating the yoke, and the yoke is provided with a second arm for rotating the yoke, and the yoke is provided with a second arm for rotating the yoke.

[0007] By adopting the above technical solution, the transport vehicle transports the steel frame horizontally to the docking position, the two traction cables of the first boom are connected to the two sides of the horizontal upper part of the head end of the steel frame, the two traction cables on the second boom are connected to the two sides of the upper part of the tail end of the steel frame, and the two traction cables of the rotating cooperative boom are connected to the two sides of the horizontal lower part of the head end of the steel frame and are not in a tensioned state.

[0008] First, the steel frame is controlled to move upward by the traction ropes on the first boom and the second boom, and moved to the specified position so that the head end of the steel frame can be against the articulated seat, so that the head end of the steel frame can rotate around the articulated seat; then the traction rope on the second boom is slowly lowered, and the traction rope on the rotating coordinated boom is tightened and moved upward to drive the steel frame to flip over. After the steel frame flips to a vertical state, the traction ropes on the first boom and the rotating coordinated boom are in a pulling state, and the traction rope on the second boom is not in a tightened state. At this time, the connection between the hook of the traction rope on the second boom and the steel frame is released, and the first boom and the rotating coordinated boom control the steel frame to move to the specified position and then move it downward for installation. In this way, there is no need for secondary step-by-step lifting, and no additional damage or deformation is caused to the steel frame.

[0009] Optionally, the connecting frame is a rectangular structure, and the side length of the connecting frame is smaller than the length of the steel frame. The connecting frame is provided with a support seat opposite to the hinge seat. When the steel frame is flipped to a vertical position, the two sides of the head end of the steel frame are respectively against the hinge seat and the support seat.

[0010] By adopting the above technical solution, the hinged seat and the support seat can be respectively abutted against both sides of the head end of the steel frame during use, and can provide support positions on both sides of the steel frame, making the steel frame more stable during transportation.

[0011] Optionally, a movable support frame is provided on the connecting frame, and the movable support frame has an open state and a locked state. In the open state, the movable support frame forms an opening for the steel frame to enter the hinge seat; in the locked state, the movable support frame closes the opening to restrict the steel frame from detaching from the hinge seat.

[0012] By adopting the above technical solution, the movable support frame remains in an open state in the initial state, at which time the steel frame can enter the hinge seat through the opening. After the hinge seat position of the steel frame, the movable support frame can be switched to a locked state. In the locked state, the movable hook can form a restriction to prevent the steel frame from detaching from the hinge seat.

[0013] Optionally, the movable support frame is a support disc rotatably arranged on the connecting frame, the support disc has a limit interval inside, and the limit interval has a gap connected to the outside, when the gap is facing downward, an opening is formed for the steel frame to enter the limit interval.

[0014] By adopting the above technical solution, the steel frame enters the limit range of the support disc through the gap during the lifting process, and then the support disc rotates so that the gap is not in the downward position. At this time, it enters a locked state and the steel frame cannot be easily detached from the support disc.

[0015] Optionally, an arched protrusion is provided on the support disc within the limiting interval, and the limiting interval is divided by the arched protrusion to form an entry end close to the notch and a limiting end away from the notch.

[0016] By adopting the above technical solution, since the steel frame will rotate around the hinge seat position, the setting of the limit zone can prevent the steel frame from being restricted by the arched protrusion during rotation, and prevent the steel frame from separating from the support disc.

[0017] Optionally, a magnet is provided at the end of the traction rope on the first boom, and a magnetic induction component is provided on the connecting frame. When the steel frame enters the opening of the movable support frame, the magnet at the end of the traction rope approaches the magnetic induction component, and at this time the support disc is controlled to rotate so that the support disc is switched to a locked state.

[0018] By adopting the above technical solution and arranging a magnet on the end of the traction rope, the support disc can be promptly controlled to rotate after the steel frame enters the limit range, thereby preventing the steel frame from separating from the support disc.

[0019] Optionally, the hinge seat and the support seat are both made of rubber material, and the lower ends of the hinge seat and the support seat have arc surfaces that are compatible with the steel pipes on the steel frame.

[0020] By adopting the above technical solution, the hinge seat and the support seat are set to rubber material, which can play a buffering effect during use and avoid the steel frame and Optionally, the first boom and the rotating cooperative boom are inclined steel hook arms, and the length of the first boom is greater than the length of the rotating cooperative boom. The first tower crane includes a rotatable tower body, and the first boom and the rotating cooperative boom are arranged on the tower body.

[0021] By adopting the above technical solution, the length of the first boom is greater than that of the rotating coordinated boom. When the first boom and the rotating coordinated boom turn to one side of the docking interval, the first boom is located in front of the rotating coordinated boom. At this time, the two traction cables of the first boom are connected to the upper and laterally sides of the head end of the steel frame, and the two traction cables of the rotating coordinated boom are connected to the lower and laterally sides of the head end of the steel frame, and there will be no interference between the two.

[0022] In a second aspect, the present application provides a steel frame hoisting method, which adopts the following technical solution: A method for hoisting a steel frame, using the above-mentioned hoisting equipment, comprises the following steps: S1. Transporting the steel structure to a docking position between a first tower crane and a second tower crane by a transport vehicle, wherein the first tower crane and the second tower crane are facing each other; S2. The two traction cables of the first boom on the first tower crane are connected to the upper and lower sides of the first end of the steel frame, the two traction cables of the swivel-matched boom are connected to the lower and lower sides of the first end of the steel frame, and the two traction cables on the second tower crane are connected to the upper and lower sides of the tail end of the steel frame; S3, the traction ropes of the first boom and the second boom cooperate to lift the steel frame horizontally until the steel frame abuts against the articulated seat; S4. Lift the lower side of the first end of the steel frame by rotating the traction rope of the coordinated boom, lower the traction rope of the second boom, and control the steel frame to flip around the hinged seat; S5. After the steel frame is flipped to a vertical state, the hook of the traction rope on the second boom is controlled to be disengaged, and the steel frame is controlled by the first tower crane to move to the designated installation position and then lowered to be unhooked.

[0023] By adopting the above technical solution, the first boom and the second boom cooperate to control the lateral lifting of the steel frame, the rotating boom and the second boom cooperate to control the flipping of the steel frame, and the first boom and the rotating boom cooperate to control the transportation of the steel frame. There is no need for secondary lifting, and the flipping and lifting of the steel frame can be directly realized in one go.

[0024] In summary, this application has at least one of the following beneficial effects: 1. The steel structure can be flipped in the air and then hoisted without the need for secondary transportation; 2. The hinged seat on the connecting frame serves as the support point for rotation. It also cooperates with the support seat as the bottom support and cooperates with the first boom and the rotating matching boom to realize the positioning of the steel frame in the vertical state; 3. The movable support frame can provide support for the steel frame when it rotates, maintaining the stability of the steel frame when it rotates. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of the hoisting equipment in use in an embodiment of the present application; Figure 2 It is a schematic diagram of the structure of the protruding connection frame in the lifting equipment in the embodiment of the present application; Figure 3 yes Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the lifting equipment in the embodiment of the present application lifting the steel frame horizontally; Figure 5This is a schematic diagram of the hoisting equipment in the embodiment of the present application flipping the steel frame in the air; Figure 6 This is a schematic diagram of the steel frame after the hoisting equipment flips over in the embodiment of the present application; Figure 7 This is a schematic diagram of the lifting equipment in the embodiment of the present application delivering the steel frame to the designated location.

[0026] Explanation of the accompanying reference numerals: 1. First tower crane; 11. First boom; 12. Rotating boom; 13. Traction rope; 131. Magnet; 14. Tower body; 15. Hook; 16. Connecting frame; 161. Articulated seat; 162. Support seat; 163. Support disc; 1631. Limiting interval; 1632. Arched protrusion; 1633. Notch; 2. Second tower crane; 21. Second boom; 3. Docking interval. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-6 This application is described in further detail. Example 1

[0028] Reference Figure 1 and Figure 2 This embodiment discloses a steel frame hoisting device, wherein the steel frame is made of welded steel pipes. The hoisting device has a hook 15, which cooperates with the steel pipe to achieve the hoisting of the steel frame. In other embodiments, lifting lugs can also be welded on the steel frame and then used in conjunction with the hook 15 of the hoisting device.

[0029] Specifically, the lifting equipment includes a first tower crane 1 and a second tower crane 2. A docking area 3 for transport vehicles is located between the first tower crane 1 and the second tower crane 2. Both the first tower crane 1 and the second tower crane 2 include a rotatable tower body 14. The first tower crane 1 is provided with a first boom 11 extending obliquely outward on the tower body 14. When the tower body 14 of the first tower crane 1 is rotated toward the second tower crane 2, the first boom 11 extends above the docking area 3.

[0030] Reference Figure 2 The second tower crane 2 is provided with a second boom 21 on the tower body 14. The first boom 11 and the second boom 21 are each provided with two spaced-apart traction cables 13. The ends of the traction cables 13 have hooks 15 for suspending the steel structure. In this embodiment, the hooks 15 are anti-drop hooks, and the operator can control the opening and closing of the hooks 15 according to actual conditions. When the transport vehicle carrying the steel structure docks in the docking area 3, the traction cables 13 on the first boom 11 and the second boom 21 are connected to the top of the steel structure at both ends via the hooks 15. The steel structure can then be lifted laterally by lifting it via the traction cables 13.

[0031] Reference Figure 2 、 Figure 3 and Figure 4 Furthermore, to achieve aerial flipping of the steel structure, a rotating, outward-extending, slanting, and coordinated arm 12 is provided below the first boom 11 on the first tower crane 1. The rotating, coordinated arm 12 is parallel to the first boom 11 and is shorter than the first boom 11, creating a horizontal gap between the rotating, coordinated arm 12 and the first boom 11. The gap between the rotating, coordinated arm 12 and the first boom 11 is the same length as the width of the steel structure's head end. The rotating, coordinated arm 12 and the first boom 11 can each be used to lift the steel structure from either side of its width. During the horizontal lifting of the steel structure, the traction cables 13 on the rotating, coordinated arm 12 remain tensioned. After the steel structure is lifted laterally, the traction cables 13 on the rotating, coordinated arm 12 are tightened and raised, while the traction cables 13 on the first boom 11 remain in place. The traction cables 13 on the second boom 21 are slowly lowered, thereby controlling the aerial flipping of the steel structure.

[0032] Reference Figure 2 、 Figure 3 and Figure 5 To enhance the stability of the steel frame during aerial flipping, an aerial fulcrum is provided in the embodiment of the present application. The specific structure is as follows: a connecting frame 16 is provided at the end of the rotating coupling boom 12. The connecting frame 16 is a rectangular structure with a hollowed-out center. The traction cables 13 on the rotating coupling boom 12 and the first boom 11 both pass through the middle of the connecting frame 16. The side width of the connecting frame 16 is smaller than the end width of the steel frame's head end. When the first boom 11 and the second boom 21 cooperate to lift the steel frame horizontally, the steel frame will abut against the bottom end of the connecting frame 16 to provide support.

[0033] Two symmetrical hinged seats 161 protrude from the sides of the connecting frame 16. These are made of rubber, and their bottoms feature curved surfaces that mate with the steel pipes on the steel frame. When the steel frame is hoisted horizontally, these hinged seats 161 contact the top of the frame, where the steel pipes rest against the curved surfaces of the hinged seats 161. Subsequent rotation of the steel frame allows it to rotate around these hinged seats 161, improving stability during rotation.

[0034] A support seat 162 is provided on the connecting frame 16 at a position opposite to the hinge seat 161. The support seat 162 is made of rubber material like the hinge seat 161, and the bottom end of the support seat 162 is also provided with an arc surface to match the steel pipe of the steel frame.

[0035] The distance between the support seat 162 and the articulated seat 161 is the same as the distance when the first boom 11 and the rotating coupling boom 12 are used to vertically lift the steel frame. When the steel frame is rotated to the vertical position, the two ends of the steel frame can be respectively snapped into the articulated seat 161 and the support seat 162, thereby cooperating with the first boom 11 and the rotating coupling boom 12 to achieve the positioning of the steel frame.

[0036] The connecting frame 16 is provided with a movable support frame on the side of the support seat 162. The movable support frame has an open state and a locked state. In the open state, the movable support frame forms an opening for the steel frame to enter the hinge seat 161. In the locked state, the movable support frame closes the opening and prevents the steel frame from leaving the hinge seat 161.

[0037] In this embodiment, the movable support frame is a support disc 163 rotatably mounted on the connecting frame 16. The support disc 163 is driven to rotate by a manually controlled motor. The support disc 163 has a limited interval 1631 inside, and the limited interval 1631 has a notch 1633 connected to the outside. When the notch 1633 faces downward, an opening is formed for the steel frame to enter the limited interval 1631. In other embodiments, the movable support frame can also be a support plate directly driven and controlled by a drive member, such as a hydraulic cylinder. In the open state, the drive member drives the support plate away from the bottom position of the articulated seat 161; in the locked state, the drive member controls the support plate to move to the bottom position of the articulated seat 161 to provide support for the steel pipes of the steel frame.

[0038] Support disc 163 is provided with an arched protrusion 1632 within a limiting region 1631. This arched protrusion 1632 divides limiting region 1631 into an entry end near notch 1633 and a limiting end away from notch 1633. The steel pipes of the steel frame enter limiting region 1631 from the entry end, and then support disc 163 rotates to allow the steel pipes of the steel frame to enter the limiting end.

[0039] To facilitate operator control of the movable support frame, a warning mechanism is also provided on the connecting frame 16. This warning mechanism comprises a magnet 131 mounted at the end of the traction cable 13 on the rotating coupling boom 12, a magnetic sensing element on the connecting frame 16, and an additional warning device. When the magnetic sensing element senses magnet 131, it controls the warning device to emit a warning, such as light or sound. This control method is conventional and will not be described in detail.

[0040] It should be noted that the magnetic sensing element has a relatively small sensing range. When the steel frame enters the opening of the movable support frame, the magnet 131 at the end of the traction cable 13 approaches the magnetic sensing element, at which point the magnetic sensing element can sense the position of the magnet 131 and control the alarm to sound an alarm. At this point, the operator controls the support disc 163 to rotate, switching the support disc 163 to a locked state.

[0041] The implementation principle of the steel frame hoisting equipment in Example 1 of the present application is: Reference Figure 4-Figure 7 When the transport vehicle transports the steel frame horizontally to the docking area 3, the two traction cables 13 of the first boom 11 are connected to the upper and lower sides of the head end of the steel frame, the two traction cables 13 on the second boom 21 are connected to the upper and lower sides of the tail end of the steel frame, and the two traction cables 13 of the rotating boom 12 are connected to the lower and lower sides of the head end of the steel frame and are not in a tensioned state.

[0042] First, the steel frame is controlled to maintain a horizontal posture and move upward through the traction rope 13 on the first boom 11 and the second boom 21, and the steel pipe at the head end of the steel frame is abutted against the hinge seat 161, so that the head end of the steel frame can rotate around the hinge seat 161. At this time, the support disc 163 rotates to provide support for the steel frame.

[0043] Then the traction rope 13 on the second boom 21 is slowly lowered, and the traction rope 13 on the rotating coordinated boom 12 is tightened and moved upward to drive the steel frame to flip over. After the steel frame is flipped to a vertical state, the traction rope 13 on the first boom 11 and the rotating coordinated boom 12 is in a pulling state, and the traction rope 13 on the second boom 21 is not in a tightened state. At this time, the connection between the hook 15 of the traction rope 13 on the second boom 21 and the steel frame is released, and the first boom 11 and the rotating coordinated boom 12 control the steel frame to move to the designated position and then move it down for installation. In this way, there is no need for secondary step-by-step lifting, and no additional damage or deformation is caused to the steel frame. Example 2

[0044] A second embodiment of the present application provides a steel frame hoisting method, comprising the following steps: S1. Use a transport vehicle to transport the steel frame in a horizontal position to the docking area 3.

[0045] S2, the first tower crane 1 and the second tower crane 2 are all turned to the docking interval 3 position, and the two traction cables 13 of the first boom 11 on the first tower crane 1 are connected to the two sides of the horizontal upper part of the head end of the steel frame, the two traction cables 13 of the rotating coordinated boom 12 are connected to the two sides of the horizontal lower part of the head end of the steel frame, and the two traction cables 13 on the second tower crane 2 are connected to the two sides of the horizontal upper part of the tail end of the steel frame.

[0046] S3: The traction ropes 13 of the first and second jibs 11 and 21 are simultaneously lifted upwards to the steel frame. The traction ropes 13 on the rotating arm 12 are not in a taut state at this time, and no force is applied to the steel frame until the steel pipe at the head end of the steel frame enters the hinge seat 161 to achieve the positioning of the rotation point.

[0047] S4. The lower side of the head end of the steel frame is lifted by rotating the traction rope 13 of the boom 12, and the traction rope 13 of the second boom 21 is lowered to control the steel frame to flip around the hinge seat 161; S5. After the steel frame is flipped to a vertical state, the other side of the head end of the steel frame enters the support seat 162. At this time, the support seat 162 and the articulated seat 161 cooperate with the first boom 11 and the rotating boom 12 to realize the positioning of the steel frame; then the first tower crane 1 is used to control the steel frame to move to the designated installation position to complete the overall lifting.

[0048] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A steel frame hoisting device, characterized in that: The steel frame is a rectangular frame formed by welding steel pipes. The hoisting equipment comprises a first tower crane (1) and a second tower crane (2). There is a parking space for a transport vehicle between the first tower crane (1) and the second tower crane (2). The first tower crane (1) is provided with a first boom (11) and a rotating matching boom (12). The rotating matching boom (12) is located below the first boom (11). The second tower crane (2) is provided with a second boom (21). The first boom (11), the rotating matching boom (12) and the second boom (21) are all provided with two spacers. A traction rope (13) having a hook (15) is installed on the rotating matching boom (12), the middle part of the connecting frame (16) is hollow, the traction ropes (13) of the first boom (11) and the rotating matching boom (12) pass through the middle of the connecting frame (16), and an articulated seat (161) is installed on the side of the connecting frame (16). When the steel frame is lifted upward in a horizontal posture, one end of the steel frame can cooperate with the articulated seat (161) to abut against each other so that the steel frame can rotate around the articulated seat (161).

2. The steel frame hoisting equipment according to claim 1, characterized in that: The connecting frame (16) is a rectangular structure, and the side length of the connecting frame (16) is smaller than the width of the steel frame. The connecting frame (16) is provided with a support seat (162) opposite to the hinge seat (161). When the steel frame is flipped to a vertical posture, the two sides of the front end of the steel frame respectively abut against the hinge seat (161) and the support seat (162).

3. The steel frame hoisting equipment according to claim 2, characterized in that: The connecting frame (16) is provided with a movable support frame, and the movable support frame has an open state and a locked state. In the open state, the movable support frame forms an opening for the steel frame to enter the hinge seat (161); in the locked state, the movable support frame closes the opening to restrict the steel frame from leaving the hinge seat (161).

4. The steel frame hoisting equipment according to claim 3, characterized in that: The movable support frame is a support disc (163) rotatably arranged on the connecting frame (16), the support disc (163) has a limit interval (1631) inside, and the limit interval (1631) has a notch (1633) connected to the outside, and when the notch (1633) is facing downward, an opening is formed for the steel frame to enter the limit interval (1631).

5. The steel frame hoisting equipment according to claim 4, characterized in that: An arched protrusion (1632) is provided on the support disc (163) within the limiting interval (1631), and the limiting interval (1631) is divided by the arched protrusion (1632) into an entry end close to the notch (1633) and a limiting end away from the notch (1633).

6. The steel frame hoisting equipment according to claim 5, characterized in that: A magnet (131) is provided at the end of the traction rope (13) on the first boom (11), and a magnetic induction component is provided on the connection frame (16); when the steel frame enters the opening of the movable support frame, the magnet (131) at the end of the traction rope (13) approaches the magnetic induction component, and at this time, the support disc (163) is controlled to rotate so that the support disc (163) is switched to a locked state.

7. The steel frame hoisting equipment according to claim 2, characterized in that: The hinge seat (161) and the support seat (162) are both made of rubber material, and the lower ends of the hinge seat (161) and the support seat (162) have arc surfaces that match the steel pipe on the steel frame.

8. The steel frame hoisting equipment according to claim 1, characterized in that: The first boom (11) and the rotating matching boom (12) are steel hook arms arranged obliquely, and the length of the first boom (11) is greater than the length of the rotating matching boom (12). The first tower crane (1) comprises a rotatable tower body (14), and the first boom (11) and the rotating matching boom (12) are arranged on the tower body (14).

9. A method for hoisting a steel frame, using the hoisting equipment according to any one of claims 1 to 8, comprising the following steps: S1. Using a transport vehicle to transport the steel structure to a parking position between the first tower crane (1) and the second tower crane (2), wherein the first tower crane (1) and the second tower crane (2) are facing each other; S2, two traction cables (13) of the first boom (11) on the first tower crane (1) are connected to both sides of the horizontal upper part of the head end of the steel frame, two traction cables (13) of the rotatable boom (12) are connected to both sides of the horizontal lower part of the head end of the steel frame, and two traction cables (13) on the second tower crane (2) are connected to both sides of the horizontal upper part of the tail end of the steel frame; S3, the traction ropes (13) of the first boom (11) and the second boom (21) cooperate to lift the steel frame laterally until the steel frame abuts against the articulated seat (161); S4, lifting the lower side of the head end of the steel frame by rotating the traction rope (13) of the coordinated boom (12), lowering the traction rope (13) of the second boom (21), and controlling the steel frame to flip around the hinged seat (161); S5, after the steel frame is flipped to a vertical state, the hook (15) of the traction rope (13) on the second boom (21) is controlled to be disengaged, and the steel frame is controlled by the first tower crane (1) to move to a designated installation position and then lowered and unhooked.

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