Adjustment device for steel components of steel structure building

Abstract

The present invention relates to the technical field of steel structure buildings, and specifically to an adjustment device for steel components of steel structure buildings, comprising: a base with a bracket on the top; a support platform arranged on the top of the bracket and slidably connected to the bracket in the vertical direction, suitable for supporting steel components; a lifting mechanism fixedly arranged on the base, and with an output end connected to the support platform, for adjusting the lifting height of the support platform sliding in the vertical direction; a first buffer mechanism, suitable for buffering the support platform when it drops to a first preset height after the lifting mechanism fails; a second buffer mechanism, arranged on the top of the first buffer mechanism, suitable for buffering the support platform when it drops to a second preset height; wherein the first preset height is greater than the second preset height, and the second preset height is greater than the height of the bracket. The present invention solves the technical problem that the existing component rotation device has a poor buffering effect and a high safety risk when it suddenly falls at a high position.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure buildings, and in particular to an adjusting device for steel components of a steel structure building. Background Art

[0002] Steel structures are buildings constructed with structural steel materials to form their load-bearing structures. These structures typically consist of beams, columns, trusses, and other components made from steel sections and steel plates. Steel structures replace the reinforced concrete used in traditional buildings with steel plates or steel sections, resulting in higher strength and improved earthquake resistance. Furthermore, components can be factory-fabricated and installed on-site, significantly reducing construction time. During construction, auxiliary devices are required to transfer and install steel components. During installation, steel member rotation devices are also required to adjust the steel member's position.

[0003] The existing component rotation device of steel structure building includes a support shell, the upper end of the support shell is fixedly connected to a support sleeve, a turntable is rotatably connected to the support sleeve, the lower end of the turntable is fixedly connected to a rotating shaft, the rotating shaft is rotatably connected to the support shell, and the lower end of the rotating shaft is installed with a first bevel gear; a hydraulic cylinder is installed at the upper end of the turntable, the output end of the hydraulic cylinder is provided with a support disc, the upper end of the support disc is provided with a clamping frame, the steel component is clamped in the clamping frame, the upper end of the support shell is provided with a counterweight water tank, the upper end of the counterweight water tank is provided with a guide cylinder, a buffer rod is slidably connected to the guide cylinder, and a buffer spring is provided in the guide cylinder. However, during the process of lifting and lowering the steel component, since the steel component has a certain weight, once the hydraulic cylinder is damaged during the lifting process by the hydraulic cylinder, the steel component is easily caused to fall suddenly under the action of gravity. Especially after the steel component is lifted to a higher position, the impact force generated by the sudden fall is huge, and when it contacts the buffer rod, it is easy to directly damage the buffer rod, resulting in poor buffering effect, a large safety risk, and even a threat to the safety of the operator. Summary of the Invention

[0004] The present invention provides an adjustment device for steel components of steel structure buildings, which solves the technical problem that the existing component rotation device of steel structure buildings has poor buffering effect when it suddenly falls at a high position, poses a great safety risk, and even threatens the safety of operators.

[0005] In view of this, the present invention provides an adjustment device for steel components of a steel structure building, comprising:

[0006] A base with a bracket on the top;

[0007] A supporting platform is provided on the top of the bracket and is slidably connected to the bracket in a vertical direction, and is suitable for supporting the steel member;

[0008] A lifting mechanism, fixedly provided on the base, with an output end connected to the support platform, for adjusting the lifting height of the support platform when sliding in the vertical direction;

[0009] a first buffer mechanism, adapted to buffer the support platform when the support platform descends to a first preset height after the lifting mechanism fails;

[0010] a second buffer mechanism, adapted to buffer the support platform when the support platform descends to a second preset height;

[0011] Wherein, the first preset height is greater than the second preset height.

[0012] Optionally, the first buffer mechanism and the second buffer mechanism are spaced apart in the vertical direction, and a buffer stroke of the first buffer mechanism is greater than a buffer stroke of the second buffer mechanism.

[0013] Optionally, the first buffer mechanism includes a plurality of rotating columns rotatably connected to the top of the base;

[0014] A limiting convex disc and a supporting disc are sleeved on each of the rotating columns, the limiting convex disc is slidably arranged above the supporting disc, and a first elastic member is provided between the limiting convex disc and the supporting disc;

[0015] A lifting plate is fixedly provided at the bottom of the support platform, and the lifting plate is sleeved on the rotating column through the first through hole;

[0016] The limiting protrusion has a protective state in which it is misaligned with the length direction of the first through hole to limit the descent of the lifting plate, and a free state in which it coincides with the length direction of the first through hole to allow the lifting plate to rise and fall freely.

[0017] Optionally, the number of the rotating columns is two, and they are symmetrically arranged on the top of the base;

[0018] And / or, at least one planar structure for limiting the rotation of the limiting flange along the circumferential direction of the rotating column is provided on the side of the rotating column in the vertical direction.

[0019] Optionally, the cross-section of the first through hole is runway circular, and the limiting cam is a disc cam, wherein the length of the base circle radius r of the disc cam is less than the length of the minor semi-axis l of the first through hole; the length of the maximum curvature radius R of the contour of the disc cam is greater than the length of the minor semi-axis l of the first through hole, and less than the length of the major semi-axis of the first through hole.

[0020] Optionally, the second buffer mechanism includes a plurality of support blocks;

[0021] A second through hole is provided on the top of the bracket, and the top of the rotating column is rotatably disposed in the second through hole;

[0022] A buffer groove is provided on the top of the rotating column, the support block is slidably connected to the buffer groove, and a second elastic member is provided between the support block and the bottom of the buffer groove;

[0023] The top of the support block extends out of the buffer groove through a connecting rod, and the top end of the connecting rod is connected to a support seat, and the support seat is movably arranged on the top of the bracket.

[0024] Optionally, the lifting mechanism includes a wire wheel, a first motor and a plurality of wire ropes;

[0025] The first motor is arranged in the base, and the output shaft is drivingly connected to the wire wheel through a rotating shaft in a vertical direction;

[0026] A through hole is provided on the top of the bracket, and the lifting plate is arranged on the bottom of the support platform through a lifting column, and the lifting column slides vertically through the through hole;

[0027] The top of the bracket is provided with multiple sets of guide wheel groups, and the guide wheel groups are located above the lifting plate;

[0028] One end of the line is wound around the line wheel, and the other end is wound around the guide wheel group and connected to the lifting plate.

[0029] Optionally, driven gears are provided at the bottoms of the plurality of rotating columns, a plurality of driving gears are provided on the rotating shaft at intervals corresponding to the driven gears, and the plurality of driving gears are drivenly connected to the plurality of driven gears via chains.

[0030] Optionally, a rotating platform is rotatably provided on the support platform, and a clamping mechanism for clamping steel components is provided on the rotating platform; a second motor is provided in the support platform, and an output shaft of the second motor is drivingly connected to the rotating platform.

[0031] Optionally, the clamping mechanism includes a third motor, a screw, two support plates and two moving blocks; the two support plates are symmetrically arranged on the rotating platform; the two ends of the screw are rotatably connected to the two support plates; the third motor is arranged on one of the support plates and the output shaft is drive-connected to the screw; the outer periphery of the screw is axially provided with two groups of threads with opposite rotation directions, the two moving blocks are respectively connected to the two groups of threads, and the tops of the two moving blocks are respectively connected with clamping blocks for cooperating to clamp steel components.

[0032] The technical solution of the present invention has the following advantages:

[0033] In the present invention, when a steel component needs to be installed, the steel component is fixed to a support platform, and the output end of the driving lifting mechanism drives the support platform to slide in the vertical direction along the bracket until it rises to a preset height for installation of the steel component. When the support platform is lifted by the lifting mechanism to a height above a first preset height, if the lifting mechanism fails and the driving of the support platform fails, the support platform will fall sharply under the action of gravity. When it falls to the first preset height, it first contacts the first buffer mechanism for buffering, reducing the speed of the support platform to reduce the instantaneous impact force caused by the sudden fall of the support platform. Then, when it falls to the second preset height under the buffering action of the first buffer mechanism, the support platform contacts the second buffer mechanism, and the second buffer mechanism provides a second buffer for the support platform, further slowing down the support platform and reducing the impact force of the support platform. The secondary buffering of the first buffer mechanism and the second buffer mechanism gradually reduces the impact force caused by the sudden fall of the support platform, avoiding excessive impact force caused by the sudden fall of the support platform due to excessive distance, thereby preventing the excessive impact force from directly contacting the second buffer mechanism and easily damaging the second buffer mechanism, thereby shortening the service life. The adjustment device for steel components of a steel structure building provided in this embodiment performs secondary buffering through the first buffer mechanism and the second buffer mechanism when the support platform is at a higher position, which has higher safety, reduces the risk of accidents during the installation of steel components, and increases the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 A structural diagram of a steel member adjustment device for a steel structure building provided by the present invention;

[0036] Figure 2 for Figure 1 Schematic diagram of the local enlarged structure at A in the middle;

[0037] Figure 3 A structural diagram of the buffer support mechanism of the component rotating device provided by the present invention;

[0038] Figure 4 A partial three-dimensional schematic diagram of the buffer support mechanism provided by the present invention;

[0039] Figure 5 A schematic diagram of the cooperation between the lifting plate and the limiting convex plate provided by the present invention;

[0040] Figure 6It is a schematic diagram of the cooperation between the clamping mechanism and the support platform in the component rotating device of the present invention.

[0041] Description of reference numerals:

[0042] 100. Base; 101. First motor; 102. Reel; 103. Bracket; 104. Guide wheel assembly; 200. Support platform; 201. Second motor; 202. Lifting column; 203. Lifting disk; 300. Rotating platform; 301. Screw; 302. Moving block; 303. Clamping block; 304. Third motor; 305. Support plate; 400. Steel member; 500. Wire rope; 600. First buffer mechanism; 601. Rotating column; 602. First elastic member; 603. Support disc; 604. Limiting cam; 605. First through hole; 606. Driven gear; 700. Second buffer mechanism; 701. Support block; 702. Second elastic member; 703. Support seat. DETAILED DESCRIPTION

[0043] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0044] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0046] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0047] Example 1

[0048] See also Figures 1 to 6 , this embodiment provides an adjustment device for steel components of a steel structure building, comprising: a base 100, with a bracket 103 on the top; a support platform 200, arranged on the top of the bracket 103 and slidably connected to the bracket 103 in the vertical direction, suitable for supporting a steel component 400; a lifting mechanism, fixedly arranged on the base 100, and with an output end connected to the support platform 200, for adjusting the lifting height of the support platform 200 sliding in the vertical direction; a first buffer mechanism 600, suitable for buffering the support platform 200 when the support platform 200 descends to a first preset height after the lifting mechanism fails; a second buffer mechanism 700, arranged on the top of the first buffer mechanism 600, suitable for buffering the support platform 200 when the support platform 200 descends to a second preset height; wherein the first preset height is greater than the second preset height, and the second preset height is greater than the height of the bracket 103.

[0049] It should be noted that the first buffer mechanism 600 and the second buffer mechanism 700 are both located below the support platform 200, so that when the lifting mechanism malfunctions or fails and falls, they can contact the first buffer mechanism 600 and the second buffer mechanism 700 for buffering.

[0050] In this embodiment, when the steel member 400 needs to be installed, the steel member 400 is fixed on the support platform 200, and the output end of the driving lifting mechanism is used to drive the support platform 200 to slide in the vertical direction along the bracket 103 until it rises to a preset height to install the steel member 400. Especially when it is higher than the first preset height, if the lifting mechanism fails and the driving of the support platform 200 fails, the support platform 200 will fall sharply under the action of gravity. When it falls to the first preset height, it first contacts the first buffer mechanism 600 for buffering, reducing the speed of the support platform 200 to reduce the instantaneous impact force caused by the sudden fall of the support platform 200. Then, when the support platform 200 descends to the second preset height under the buffering action of the first buffer mechanism 600, it contacts the second buffer mechanism 700, which performs a second buffering on the support platform 200, further decelerating the support platform 200 and reducing the impact force of the support platform 200. The first buffer mechanism 600 and the second buffer mechanism 700 perform a secondary buffering, gradually reducing the impact force caused by the sudden drop of the support platform 200, and avoiding the support platform 200 from dropping too far and causing excessive impact force, which would easily damage the second buffer mechanism 700 when it directly contacts the second buffer mechanism 700, thus affecting the service life. The adjustment device for steel components of steel structure buildings provided in this embodiment provides a second buffering when the support platform 200 is at a higher position, which is safer, reduces the risk of accidents during the installation of the steel components 400, and increases the service life.

[0051] Example 2

[0052] As a further improvement to Example 1, Figures 1 to 6 As shown, the first buffer mechanism 600 and the second buffer mechanism 700 are spaced apart in the vertical direction, and the buffer stroke of the first buffer mechanism 600 is greater than the buffer stroke of the second buffer mechanism 700 .

[0053] In this embodiment, the first buffer mechanism 600 and the second buffer mechanism 700 are spaced apart so that when the support platform 200 descends in the vertical direction, they contact the first buffer mechanism 600 and the second buffer mechanism 700 in sequence to achieve secondary buffering, and the buffering stroke of the first buffer mechanism 600 is greater than the buffering stroke of the second buffer mechanism 700, so that when the support platform 200 continues to descend after being buffered by the first buffer platform, it can contact the second buffer platform and will not exceed the buffering stroke of the first buffer mechanism 600 to damage the first buffer mechanism 600. In addition, when the support platform 200 descends to the second preset height, the first buffer mechanism 600 and the second buffer mechanism 700 work together to further improve the buffering effect, effectively buffering the support platform 200 until it stops, thereby improving safety and not damaging the mechanism of the adjustment device.

[0054] On the basis of the above embodiment, in a specific embodiment, the first buffer mechanism 600 includes a plurality of rotating columns 601 rotatably connected to the top of the base 100; each rotating column 601 is provided with a limiting cam 604 and a supporting disc 603 at intervals, the limiting cam 604 is slidably arranged above the supporting disc 603, and a first elastic member 602 is provided between the limiting cam 604 and the supporting disc 603; a lifting disc 203 is fixedly provided at the bottom of the support platform 200, and the lifting disc 203 is sleeved on the rotating column 601 through a first through hole 605; wherein the limiting cam 604 has a protective state in which it is misaligned with the length direction of the first through hole 605 to limit the descent of the lifting disc 203, and a free state in which it coincides with the length direction of the first through hole 605 to allow the lifting disc 203 to rise and fall freely.

[0055] It should be noted that when the support platform 200 is in the initial state, the lifting plate 203 is located below the limiting boss 604. When the support platform 200 rises to the first preset height, the lifting plate 203 passes through the limiting boss 604 and is located above the limiting boss 604. The radius of the support disc 603 is smaller than the shortest passing radius of the first through hole 605.

[0056] In this embodiment, when the support platform 200 is adjusted to rise, the support platform 200 drives the lifting plate 203 to rise synchronously. At this time, the rotating column 601 is adjusted to rotate, driving the limiting convex plate 604 to rotate so that the limiting convex plate 604 is in a free state that coincides with the length direction of the first through hole 605. During the rising process of the lifting plate 203, the first through hole 605 can freely pass through the limiting convex plate 604 and the supporting disc 603; when the support platform 200 rises to the first preset height, the lifting plate 203 is located above the limiting convex plate 604. At this time, the rotating column 601 is adjusted to rotate so that the limiting convex plate 604 rotates and is misaligned with the length direction of the first through hole 605 to limit the lifting plate 203 from falling. When the supporting platform 200 drops sharply due to a fault, the lifting plate 203 drops sharply along with the supporting platform 200. When the supporting platform 200 drops to the first preset height, the bottom of the lifting plate 203 contacts the top of the limiting convex plate 604. If the lifting plate 200 continues to drop, the limiting convex plate 604 is pushed to compress the first elastic member 602 on the rotating column 601 to slide down. The first elastic member 602 abuts against the supporting disc 603 to compress and thus play a buffering role. If no fault occurs, the limiting convex plate 604 is adjusted to rotate to a free state that coincides with the length direction of the first through hole 605, so that when the lifting mechanism adjusts the lifting plate 203 to drop to the first preset height, it is not affected by the limiting convex plate 604.

[0057] Specifically, a plurality of rotating columns 601 are arranged at intervals around the circumference of the base 100 on the top of the base 100 to improve stability during the buffering process.

[0058] Specifically, the first elastic member 602 is a first compression spring, which is sleeved on the rotating column 601 , with one end abutting against the supporting disc 603 and the other end abutting against the limiting convex disc 604 , thereby playing a buffering role.

[0059] On the basis of the above embodiment, in a specific embodiment, the number of the rotating columns 601 is two, and they are symmetrically arranged on the top of the base 100 .

[0060] In this embodiment, the two rotating columns 601 are symmetrically arranged to provide buffering on both sides, thereby increasing the buffering strength and improving the stability during the buffering process.

[0061] On the basis of the above embodiment, in a specific embodiment, at least one planar structure for limiting the limiting convex plate 604 to rotate circumferentially along the rotating column 601 is provided on the side of the rotating column 601 in the vertical direction.

[0062] In this embodiment, when the limiting cam 604 is sleeved on the rotating column 601 and rotates, it has a tendency to rotate relative to the rotating column 601. If relative rotation occurs, it is difficult to control the limiting cam 604 to be in a free state or a protected state. By cooperating with the planar structure and the limiting cam 604, the limiting cam 604 and the rotating column 601 can both rotate synchronously and slide together, thereby improving the control accuracy.

[0063] Specifically, the horizontal cross-section of the rotating column 601 has at least one straight side, and may also be a polygon (eg, a quadrilateral, a hexagon, etc.).

[0064] On the basis of the above embodiment, in a specific embodiment, the second buffer mechanism 700 includes a plurality of support blocks 701; a second through hole is provided at the top of the bracket 103, and the top of the rotating column 601 is rotatably arranged in the second through hole; a buffer groove is provided at the top of the rotating column 601, and the support block 701 is slidably connected to the buffer groove, and a second elastic member 702 is provided between the support block 701 and the bottom of the buffer groove; the top of the support block 701 extends out of the buffer groove through a connecting rod, and the top end of the connecting rod is connected to a support seat 703, and the support seat 703 is movably arranged on the top of the bracket 103.

[0065] It should be noted that the multiple support blocks 701 are adapted to the multiple rotating columns 601 and are slidably installed in the buffer grooves of the multiple rotating columns 601 respectively.

[0066] In this embodiment, when the support platform 200 descends to the second preset height, the bottom of the support platform 200 contacts the support seat 703 of the second buffer mechanism 700, and then the force of the support seat 703 is transmitted to the support block 701 through the connecting rod. The support block 701 compresses the second elastic member 702 in the buffer groove to slide downward, thereby playing a buffering role. In addition, the top of the rotating column 601 is rotatably set in the second through hole of the bracket 103, further improving the stability of the first buffer mechanism 600 and the second buffer mechanism 700.

[0067] Specifically, the second elastic member 702 is a second compression spring. One end of the second compression spring abuts against the support block 701 , and the other end abuts against the bottom of the buffer groove, thereby playing a buffering role.

[0068] Based on the above embodiment, in a specific embodiment, the cross-section of the first through hole 605 is a runway circle, and the limiting protrusion 604 is a disc cam, wherein the length of the base circle radius r of the disc cam is less than the length of the minor semi-axis l of the first through hole 605; the length of the maximum curvature radius R of the contour of the disc cam is greater than the length of the minor semi-axis l of the first through hole 605, and less than the length of the major semi-axis of the first through hole 605.

[0069] It should be noted that the base circle portion of the disc cam is coaxially sleeved on the rotating column 601 .

[0070] In this embodiment, the limiting boss 604 is a disc cam. Since the overall shape of the disc cam is narrower from one end of the base circle to the other end, when the disc cam is in the runway circular first through hole 605, the disc cam has a movable space to rotate along the axis of the base circle by a preset angle. Therefore, according to the size of the space in which the disc cam can move in the runway circular first through hole 605, after adjustment, the first through hole 605 can pass through the limiting boss 604 even during the rotation of the limiting boss 604. At the same time, when the limiting boss 604 and the first through hole 605 are staggered by a preset angle in the length direction, the limiting boss 604 can limit the first through hole 605, especially for buffering protection when a fault occurs after the support platform 200 rises above the first preset height.

[0071] On the basis of the above embodiment, in a specific embodiment, the lifting mechanism includes a pulley 102, a first motor 101 and multiple ropes 500; the first motor 101 is arranged in the base 100, and the output shaft is driven and connected to the pulley 102 through a rotating shaft in the vertical direction; a through hole is provided at the top of the bracket 103, and the lifting plate 203 is arranged at the bottom of the support platform 200 through a lifting column 202, and the lifting column 202 slides in the through hole in the vertical direction; a plurality of guide wheel groups 104 are provided at the top of the bracket 103, and the guide wheel group 104 is located above the lifting plate 203; one end of the rope 500 is wound around the pulley 102, and the other end is connected to the lifting plate 203 by bypassing the guide wheel group 104.

[0072] It should be noted that the multiple ropes 500 are provided corresponding to the multiple rotating columns 601, and the multiple guide wheel groups 104 are provided corresponding to the multiple ropes 500, so as to improve the stability and lifting strength of the lifting.

[0073] In this embodiment, the first motor 101 drives the wire wheel 102 to rotate and wind the wire rope 500, so that the wire rope 500 is shortened and the lifting plate 203 is pulled upward along the guide wheel group 104, so that the lifting column 202 slides upward along the through hole, thereby driving the support platform 200 to rise. Conversely, the first motor 101 is driven in the reverse direction, so that the wire rope 500 is loosened and extended, and the support platform 200 descends under the action of gravity.

[0074] Based on the above embodiment, in a specific embodiment, a plurality of rotating columns 601 are provided at the bottom with a driven gear 606, and a plurality of driving gears are provided on the rotating shaft at intervals corresponding to the driven gears 606, and the plurality of driving gears are respectively driven and connected to the plurality of driven gears 606 through chains.

[0075] It should be noted that the driven gears on the multiple rotating columns are staggered in the vertical direction to facilitate driving connection with the driving gear.

[0076] In this embodiment, the bottom of the plurality of rotating columns 601 is driven by a driven gear 606 and a driving gear on the rotating shaft through a chain, and they are linked at the same time to improve convenience. The matching height of the limiting cam 604 and the first through hole 605 is adjusted so that the first through hole 605 can also pass through the limiting cam 604 while the limiting cam 604 rotates. After the support platform 200 rises to the first preset height, a fault occurs, causing it to fall sharply. The first motor 101 can also drive the rotating column 601, so that the limiting cam 604 is in a protective state, which cushions the sudden fall of the support platform 200 and plays a protective role.

[0077] Specifically, the directions of the upper limit convex plates 604 on the multiple rotating columns 601 are different, so that after the lifting mechanism fails, at least one of the upper limit convex plates 604 contacts the lifting plate 203 during the descending process of the lifting plate 203 to provide a buffering protection effect.

[0078] On the basis of the above embodiment, in a specific embodiment, a speed sensor for detecting the lifting speed of the lifting plate 203 is provided on the top of the base 100 , and the speed sensor is communicatively connected to the first motor 101 through a controller.

[0079] In this embodiment, the lifting speed of the lifting plate 203 is detected by a speed sensor and fed back to the controller, and a preset speed threshold is set by the controller. When the speed sensor detects that the descending speed of the lifting plate 203 exceeds the preset speed threshold, the current state is judged to be a failure state; or a preset acceleration threshold is set, by detecting multiple descending speeds of the lifting plate 203 within a preset time and calculating the acceleration within the preset time, if the acceleration is greater than the preset acceleration threshold, the current state is judged to be a failure state. In the case of the failure state, the controller controls the first motor 101 to drive the rotating column 601 to rotate until the limiting convex plate 604 is in a protective state, further ensuring that the limiting convex plate 604 can play a buffering role for the lifting plate 203.

[0080] On the basis of the above embodiment, in a specific embodiment, a rotating platform 300 is rotatably arranged on the support platform 200, and a clamping mechanism for clamping the steel member 400 is provided on the rotating platform 300; a second motor 201 is provided in the support platform 200, and the output shaft of the second motor 201 is drive-connected to the rotating platform 300.

[0081] In this embodiment, the steel component 400 can be clamped and fixed by the clamping mechanism to prevent movement. At the same time, the rotating platform 300 can be driven by the second motor 201 to rotate, so as to facilitate the adjustment of the horizontal reverse direction of the steel component 400 so that its posture meets the installation requirements.

[0082] On the basis of the above embodiment, in a specific embodiment, the clamping mechanism includes a third motor 304, a screw rod 301, two support plates 305 and two moving blocks 302; the two support plates 305 are symmetrically arranged on the rotating platform 300; the two ends of the screw rod 301 are respectively rotatably connected to the two support plates 305; the third motor 304 is arranged on one of the support plates 305 and the output shaft is drive-connected to the screw rod 301; the outer periphery of the screw rod 301 is axially provided with two groups of threads with opposite rotation directions, the two moving blocks 302 are respectively connected to the two groups of threads, and the tops of the two moving blocks 302 are respectively connected with clamping blocks 303 for cooperating in clamping the steel component 400.

[0083] In this embodiment, when the steel component 400 needs to be clamped, the third motor 304 drives the screw rod 301 to rotate in the support plate 305 in the forward direction, thereby driving the two threaded movable blocks 302 to move in the direction of separation, thereby opening the clamping block 303. After the steel component 400 is placed in the middle of the clamping block 303, the third motor 304 drives the screw rod 301 to rotate in the reverse direction, so that the movable block 302 moves in the direction of approaching, thereby driving the two clamping blocks 303 to approach each other, clamping the steel component 400, fixing it, and preventing shaking.

[0084] Specifically, the first motor 101 , the second motor 201 and the third motor 304 are all forward and reverse servo motors.

[0085] In this embodiment, the specific working principle of the adjustment device for the steel member of the steel structure building is as follows: when the steel member 400 needs to be installed, the third motor 304 is first used to drive the screw rod 301 to rotate in the support plate 305 in the forward direction, thereby driving the two threaded movable blocks 302 to move in the direction of separation, thereby opening the clamping block 303, and placing the steel member 400 between the clamping blocks 303. Then, the third motor 304 is used to drive the screw rod 301 in the reverse direction to rotate, thereby driving the movable block 302 to move in the direction of approaching, thereby driving the two clamping blocks 303 to approach each other and clamp the steel member 400, and then driving the first motor 101 to drive the wire wheel 1 02 Rotate the winding rope 500 to shorten the rope 500 and pull the lifting plate 203 upward along the guide wheel group 104 to rise, so that the lifting column 202 slides upward along the through hole, thereby driving the support platform 200 to rise. If the rising height is higher than the first preset height, the first through hole 605 of the lifting plate 203 passes through the support disc 603 and the limiting convex plate 604 during the rising process. When the support platform 200 rises to the installation height, the second motor 201 can be used to drive the rotating platform 300 to rotate, and the posture of the steel component 400 can be adjusted to meet the installation requirements. Otherwise, the first motor 101 is driven in the reverse direction to loosen the rope 500 and extend it. , the support platform 200 descends under the action of gravity; if the support platform 200 fails when it exceeds the first preset height and causes a sudden fall, first, when the support platform 200 descends to the first preset height, the rotating column 601 rotates until the limiting convex plate 604 is in a protective state, and the bottom of the lifting plate 203 contacts the top of the limiting convex plate 604. If it continues to descend, the limiting convex plate 604 is pushed on the rotating column 601 to compress the first elastic member 602 to slide down, and the first elastic member 602 abuts against the support disc 603 to compress and play a buffering role. Then the support platform 200 continues to descend under the action of the first buffer mechanism 600 until it reaches the first preset height. When it descends to the second preset height, the bottom of the support platform 200 contacts the support seat 703 of the second buffer mechanism 700, and then the force on the support seat 703 is transmitted to the support block 701 through the connecting rod. The support block 701 compresses the second elastic member 702 in the buffer groove to slide downward, which plays a buffering role. The first buffer mechanism 600 and the second buffer mechanism 700 play a buffering role at the same time to improve the buffering effect. In addition, during the lifting process of the support platform 200, it rotates in conjunction with the rotating column 601, which is more convenient, and the speed of the lifting plate 203 is detected by the speed sensor to ensure that the control limit cam 604 is in a protective state when a travel failure occurs and the vehicle falls suddenly.The adjustment device for steel components of a steel structure building provided in this embodiment has a relatively small impact force when the support platform 200 drops sharply below a first preset height, requiring only the second buffer mechanism 700 to provide buffering. However, when the support platform 200 drops sharply above the first preset height, the impact force is excessively large, and the first buffer mechanism 600 and the second buffer mechanism 700 cooperate to provide secondary buffering at different heights, thereby improving the buffering effect and preventing damage to the second buffer mechanism 700 from excessive impact force. Furthermore, the device has a high degree of safety and can be clamped by a clamping mechanism and adjusted in position by a rotating platform 300, providing high flexibility. This solves the technical problem that existing component rotation devices for steel structures have poor buffering effects when a sudden drop occurs at a higher position, posing a significant safety risk and even threatening the safety of operators.

[0086] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An adjustment device for steel components of a steel structure building, characterized in that: include: A base (100) with a bracket (103) on the top; A supporting platform (200), disposed on top of the bracket (103) and slidably connected to the bracket (103) in a vertical direction, suitable for supporting the steel member (400); A lifting mechanism, fixedly arranged on the base (100), with an output end connected to the support platform (200), and used for adjusting the lifting height of the support platform (200) when sliding in the vertical direction; a first buffer mechanism (600) adapted to buffer the support platform (200) when the support platform (200) descends to a first preset height after the lifting mechanism fails; a second buffer mechanism (700), adapted to buffer the support platform (200) when the support platform (200) descends to a second preset height; Wherein, the first preset height is greater than the second preset height; The first buffer mechanism (600) comprises a plurality of rotating columns (601) rotatably connected to the top of the base (100); A limiting convex disc (604) and a supporting disc (603) are provided on each of the rotating columns (601) at intervals, the limiting convex disc (604) is slidably arranged above the supporting disc (603), and a first elastic member (602) is provided between the limiting convex disc (604) and the supporting disc (603); A lifting plate (203) is fixedly provided at the bottom of the support platform (200), and the lifting plate (203) is sleeved on the rotating column (601) through a first through hole (605); The limiting convex disc (604) has a protective state in which it is misaligned with the length direction of the first through hole (605) to limit the descent of the lifting disc (203), and a free state in which it coincides with the length direction of the first through hole (605) to allow the lifting disc (203) to freely rise and fall; A plurality of rotating columns (601) are arranged at intervals in the circumferential direction of the base (100) on the top of the base (100).

2. The adjusting device for steel components of a steel structure building according to claim 1, characterized in that: The first buffer mechanism (600) and the second buffer mechanism (700) are spaced apart in a vertical direction, and the buffer stroke of the first buffer mechanism (600) is greater than the buffer stroke of the second buffer mechanism (700).

3. The adjusting device for steel components of a steel structure building according to claim 1, characterized in that: At least one planar structure is provided on the side of the rotating column (601) in the vertical direction for limiting the circumferential rotation of the limiting convex disc (604) along the rotating column (601).

4. The adjusting device for steel components of a steel structure building according to claim 1, characterized in that: The cross section of the first through hole (605) is in the shape of a racetrack circle, and the limiting cam (604) is a disc cam, wherein the length of the base circle radius r of the disc cam is less than the length of the minor semi-axis l of the first through hole (605); and the length of the maximum curvature radius R of the profile of the disc cam is greater than the length of the minor semi-axis l of the first through hole (605) and less than the length of the major semi-axis of the first through hole (605).

5. The adjusting device for steel components of a steel structure building according to claim 1, characterized in that: The second buffer mechanism (700) comprises a plurality of support blocks (701); A second through hole is provided on the top of the bracket (103), and the top of the rotating column (601) is rotatably disposed in the second through hole; A buffer groove is provided on the top of the rotating column (601), the support block (701) is slidably connected to the buffer groove, and a second elastic member (702) is provided between the support block (701) and the bottom of the buffer groove; The top of the support block (701) extends out of the buffer groove through a connecting rod, and the top end of the connecting rod is connected to a support seat (703), and the support seat (703) is movably arranged on the top of the bracket (103).

6. The adjusting device for steel components of a steel structure building according to claim 4, characterized in that: The lifting mechanism comprises a wire wheel (102), a first motor (101), and a plurality of wire ropes (500); The first motor (101) is arranged in the base (100), and the output shaft is drivingly connected to the wire wheel (102) via a rotating shaft in a vertical direction; A through hole is provided at the top of the bracket (103); the lifting plate (203) is arranged at the bottom of the support platform (200) via a lifting column (202); and the lifting column (202) is slidably provided in the through hole in a vertical direction; A plurality of guide wheel groups (104) are provided on the top of the bracket (103), and the guide wheel groups (104) are located above the lifting plate (203); One end of the line rope (500) is wound around the line wheel (102), and the other end is passed around the guide wheel group (104) and connected to the lifting plate (203).

7. The adjusting device for steel components of a steel structure building according to claim 6, characterized in that: The bottoms of the plurality of rotating columns (601) are each provided with a driven gear (606), and the rotating shaft is provided with a plurality of driving gears spaced apart corresponding to the driven gears (606). The plurality of driving gears are respectively connected to the plurality of driven gears (606) through chains.

8. The adjusting device for steel components of a steel structure building according to any one of claims 1 to 7, characterized in that: A rotating platform (300) is rotatably provided on the support platform (200), and a clamping mechanism for clamping the steel component (400) is provided on the rotating platform (300); a second motor (201) is provided in the support platform (200), and an output shaft of the second motor (201) is drivingly connected to the rotating platform (300).

9. The adjusting device for steel components of a steel structure building according to claim 8, characterized in that: The clamping mechanism comprises a third motor (304), a screw rod (301), two support plates (305) and two moving blocks (302); the two support plates (305) are symmetrically arranged on the rotating platform (300); the two ends of the screw rod (301) are respectively rotatably connected to the two support plates (305); the third motor (304) is arranged on one of the support plates (305) and the output shaft is drivingly connected to the screw rod (301); the outer periphery of the screw rod (301) is axially provided with two groups of threads with opposite rotation directions, the two moving blocks (302) are respectively connected to the two groups of threads, and the tops of the two moving blocks (302) are respectively connected with clamping blocks (303) for cooperating to clamp the steel component (400).

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