A device for hoisting steel columns from below.

Abstract

This utility model discloses a device for hoisting steel columns, relating to the field of construction equipment technology. The device includes a fixed plate with an adjustment mechanism in its center. The adjustment mechanism comprises a height control component including a frame fixedly installed at the top center of the fixed plate. A double-ended screw is rotatably mounted in the center of the frame. A servo motor is located on one side of the double-ended screw, and one end of the screw is fixedly mounted on the drive end of the servo motor. Two symmetrically distributed sliding blocks are threaded onto the upper part of the double-ended screw, each with a lifting ring on its upper part. This application uses the servo motor to drive the double-ended screw to rotate, causing the sliding blocks to move synchronously towards or away from each other within the groove. Since the sliding blocks, wire rope, and hook form a triangular geometric system, changing the distance between the two sliding blocks allows for adjusting the height of the hook and frame, thus finely adjusting the vertical height of the steel column. This facilitates easy adjustment of the steel column's height position during docking.

Description

Technical Field

[0001] This utility model relates to the field of construction equipment technology, specifically to a device for hoisting steel columns. Background Technology

[0002] In the field of modern building construction, steel columns are important load-bearing structural components, and their installation accuracy plays a vital role in the quality of the entire building project. In particular, the hoisting operation of the lower steel columns has always been a key link in the construction process due to the high-altitude operation and complex positioning requirements.

[0003] Referring to the patent document: Patent Publication No. CN222312478U, Patent Publication Date 2025-01-07, a device for hoisting lower steel columns is disclosed, belonging to the field of construction equipment. In this device, the long sides of the first and second hanging plates are set on the upper surface of the upper flange of the steel beam. Several connecting holes for adjusting the distance are opened at intervals on the long sides. Through holes for connecting the lifting device are opened on the short sides of the first and second hanging plates respectively. The top of the lower steel column is fixed with a clamping plate and a connecting ear plate on both sides respectively. Several fixing holes are opened at intervals on the connecting ear plate. An assembly clamping plate with a connecting hole is provided on the same side of the connecting ear plate. The distance between the two is adjusted by connecting parts passing through the connecting holes and different fixing holes on the assembly clamping plate. The lifting device is set between the first hanging plate and the connecting ear plate, and between the second hanging plate and the clamping plate and the lifting ear plate. This device is suitable for the situation where lower steel columns are set under steel beams of different widths. Only a small lifting device is needed to hoist the lower steel column into place, avoiding the problem of the installed steel beam becoming an obstacle.

[0004] Based on the search of patent numbers and the shortcomings of existing technologies, the following was found:

[0005] Traditional methods of hoisting steel columns typically rely on the rough operation of large lifting equipment, which is insufficient in terms of height and horizontal angle adjustment. For fine-tuning the height, manual assistance with shims or simple winch operation were previously used, which made it difficult to control the precision. This not only consumed a lot of manpower and time, but also made it easy for the steel column to deviate due to operational errors. As for adjusting the horizontal angle of the steel column, it relied on the experience of the construction personnel, who manually pushed the steel column to rotate and align it with the installation hole. This method was dangerous and slow.

[0006] Therefore, this utility model provides a device for hoisting steel columns from below. Utility Model Content

[0007] To address the shortcomings of traditional methods for hoisting steel columns by hanging them from the ground, which typically rely on the rough operation of large lifting equipment and have deficiencies in terms of height and horizontal angle adjustment, this invention aims to provide a device for hoisting steel columns by hanging them from the ground.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a device for hoisting steel columns, comprising a fixing plate, wherein an adjustment mechanism is provided in the middle of the fixing plate, the adjustment mechanism comprising:

[0009] The height control component includes a frame fixedly installed at the top center of the fixed plate. A double-ended screw is rotatably installed in the center of the frame. A servo motor is provided on one side of the double-ended screw. One end of the double-ended screw is fixedly installed on the drive end of the servo motor. Two symmetrically distributed sliding blocks are threaded on the upper part of the double-ended screw. Each sliding block is provided with a lifting ring on its upper part. Steel wire ropes are detachably installed on the upper part of each lifting ring. Hooks are detachably installed on the top of each steel wire rope.

[0010] The horizontal control component, located at the bottom of the fixed plate, is used to adjust the horizontal angle of the hoisted steel column.

[0011] Preferably, the horizontal control component includes a base plate fixedly installed at the bottom end of the fixed plate, a driven gear rotatably installed in the middle of the base plate, a driving gear provided on one side of the driven gear, the driving gear and the driven gear meshing with each other, a drive component provided at the top of the driving gear, and a lifting lug fixedly installed at the bottom middle of the driven gear.

[0012] Preferably, a protective cover is fixedly installed on one side of the frame, and the servo motor is fixedly installed in the middle of the protective cover.

[0013] Preferably, the frame has a groove in the middle, and the two sliding blocks are slidably engaged in the middle of the groove.

[0014] Preferably, the upper part of each of the two sliding blocks is provided with multiple threaded holes, and the lower part of each of the two lifting rings is provided with through holes corresponding to the positions of the threaded holes. The lifting rings are detachably fixed to the sliding blocks by fastening bolts that pass through the through holes and are screwed into the threaded holes.

[0015] Preferably, the drive assembly includes a stepper motor fixedly mounted on one side of the top of the base plate, and the top center of the drive gear fixedly mounted on the drive end of the stepper motor.

[0016] Beneficial effects

[0017] This utility model provides a device for hoisting steel columns from below. Compared with the prior art, it has the following advantages:

[0018] 1. This application uses a servo motor to drive a double-headed screw to rotate, which in turn drives the sliding blocks to move synchronously in opposite directions or in opposite directions within the groove. Since the sliding blocks, steel wire rope, and hook form a triangular geometric system, when the distance between the two sliding blocks changes, the height of the hook and the frame can be adjusted to finely adjust the vertical height of the steel column, making it easy to adjust the height position of the steel column during docking.

[0019] 2. The stepper motor drives the active gear to rotate, which in turn drives the driven gear to rotate, thereby fine-tuning the angle of the lifting lug. At the same time, when the stepper motor rotates one revolution, the driven gear only rotates 18°. Through the closed-loop control system, precise fine-tuning of 1° to 3° can be achieved, which can significantly improve the docking efficiency between the steel column mounting hole and the embedded part. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0022] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0023] Figure 4 This is a partial cross-sectional structural diagram of the present invention.

[0024] In the diagram: 1. Fixed plate; 2. Adjustment mechanism; 21. Height control component; 211. Frame; 212. Double-ended screw; 213. Servo motor; 214. Protective cover; 215. Tank; 216. Sliding block; 217. Lifting ring; 218. Steel wire rope; 219. Hook; 22. Horizontal control component; 221. Base plate; 222. Driven gear; 223. Driven gear; 224. Stepper motor; 225. Lifting lug. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-4 This utility model provides a technical solution: a device for hoisting steel columns, including a fixing plate 1, an adjusting mechanism 2 provided in the middle of the fixing plate 1, and the adjusting mechanism 2 including:

[0027] The height control component 21 includes a frame 211 fixedly installed at the top center of the fixed plate 1. A double-ended screw 212 is rotatably installed at the center of the frame 211. A servo motor 213 is provided on one side of the double-ended screw 212. One end of the double-ended screw 212 is fixedly installed at the drive end of the servo motor 213. The servo motor 213 can be a model SGM7J-04AFC6S servo motor with a rated power of 400W, a rated torque of 1.27N·m, and a maximum torque of 3.82N·m, providing strong power. Two symmetrically distributed sliding blocks 216 are threaded on the upper part of the double-ended screw 212. Each of the two sliding blocks 216 is provided with a lifting ring 217. Steel wire ropes 218 can be detachably installed on the upper part of the two lifting rings 217. Hooks 219 can be detachably installed at the top of the two steel wire ropes 218.

[0028] The horizontal control component 22 is located at the lower part of the fixed plate 1 and is used to adjust the horizontal angle of the hoisted steel column.

[0029] The horizontal control component 22 includes a base plate 221 fixedly installed at the bottom of the fixed plate 1. A driven gear 222 is rotatably installed in the middle of the base plate 221. A driving gear 223 is provided on one side of the driven gear 222. The driving gear 223 and the driven gear 222 are meshed with each other. A drive component is provided at the top of the driving gear 223. A lifting lug 225 is fixedly installed in the middle of the bottom of the driven gear 222. By setting the driving gear 223 with 15 teeth and the driven gear 222 with 300 teeth, the driven gear 222 can rotate 18° for the driven gear 222 to rotate 1 revolution for one revolution of the driving gear 223. At the same time, combined with the control of the stepper motor 224, it is possible to easily achieve fine adjustment of the horizontal angle of the hoisted steel column in the range of 1° to 3°.

[0030] A protective cover 214 is fixedly installed on one side of the frame 211, and the servo motor 213 is fixedly installed in the middle of the protective cover 214. The protective cover 214 is used to protect the servo motor 213 and prevent the servo motor 213 from being bumped during hoisting.

[0031] The frame 211 has a groove 215 in the middle, and two sliding blocks 216 are slidably locked in the middle of the groove 215. The groove 215 has a T-shaped cross section, which allows the groove 215 to limit the sliding blocks 216 and ensure their stable sliding while supporting them, thereby reducing the tension on the double-headed screw 212 during hoisting.

[0032] The upper part of each of the two sliding blocks 216 is provided with multiple threaded holes, and the lower part of each of the two lifting rings 217 is provided with through holes corresponding to the positions of the threaded holes. The lifting rings 217 are detachably fixed to the sliding blocks 216 by fastening bolts that pass through the through holes and are screwed into the threaded holes. The lifting rings 217 can be fixed by fastening bolts that pass through the through holes and are screwed into the threaded holes, making it convenient to install and remove the lifting rings 217.

[0033] The drive assembly includes a stepper motor 224 fixedly mounted on one side of the top of the base plate 221. It can be a 57BYG series stepper motor. In terms of load capacity, the 57BYG series stepper motor can be selected according to the weight of the steel column. The top center of the drive gear 223 is fixedly mounted on the drive end of the stepper motor 224. Driven by the stepper motor 224, the drive gear 223 can be rotated, which in turn drives the driven gear 222 meshing with it to rotate, thereby adjusting the angle of the lifting lug 225.

[0034] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0035] During operation, the hook 219 can be connected and fixed to the hook of the hoisting equipment, while the hoisting hook on the steel column can be connected to the lifting lug 225 at the bottom of the base plate 221. The hoisting machine can then drive the lifting mechanism to hoist the steel column. During the hoisting process, when it is necessary to fine-tune the height, the double-headed screw 212 can be rotated by the servo motor 213, which will cause the two sliding blocks 216 to move relative to each other or in opposite directions, thereby adjusting the angle between the two wire ropes 218. As shown in the figure, the two sliding blocks 216 and the hook 219 form a triangular geometric system. By changing the ratio of the side lengths of the triangle, the height between the hook 219 and the frame 211 can be adjusted. When the two sliding blocks 216 expand outward, the angle of the two wire ropes 218 increases, which reduces the height between the hook 219 and the frame 211. Thus, while the hoisting equipment remains stationary, the steel column can be fine-tuned to move upward. Reverse rotation of the double-headed screw 212 will cause the sliding blocks 216 to move relative to each other, thereby fine-tuning the steel column to move downward.

[0036] Driven by the stepper motor 224, the drive gear 223 rotates, which in turn causes the driven gear 222 to rotate, thus adjusting the angle of the lifting lug 225. This allows the horizontal angle of the lower steel column to be adjusted, making it easier for workers to align the mounting holes at the bottom of the steel column with the embedded parts for installation.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for hoisting a steel column, comprising a fixing plate (1), characterized in that: The fixing plate (1) is provided with an adjustment mechanism (2) in the middle, and the adjustment mechanism (2) includes: The height control assembly (21) includes a frame (211) fixedly installed at the top center of the fixed plate (1). A double-ended screw (212) is rotatably installed at the center of the frame (211). A servo motor (213) is provided on one side of the double-ended screw (212). One end of the double-ended screw (212) is fixedly installed at the drive end of the servo motor (213). Two symmetrically distributed sliding blocks (216) are threaded on the upper part of the double-ended screw (212). A lifting ring (217) is provided on the upper part of each of the two sliding blocks (216). A steel wire rope (218) can be detachably installed on the upper part of each of the two lifting rings (217). A hook (219) can be detachably installed on the top of each of the two steel wire ropes (218). A horizontal control component (22) is installed at the bottom of the fixed plate (1) and is used to adjust the horizontal angle of the hoisted steel column.

2. The device for hoisting a steel column downward according to claim 1, characterized in that: The horizontal control component (22) includes a base plate (221) fixedly installed at the bottom of the fixed plate (1). A driven gear (222) is rotatably installed in the middle of the base plate (221). A driving gear (223) is provided on one side of the driven gear (222). The driving gear (223) and the driven gear (222) are meshed and connected. A drive component is provided at the top of the driving gear (223). A lifting lug (225) is fixedly installed in the middle of the bottom of the driven gear (222).

3. The device for hoisting a steel column downward according to claim 1, characterized in that: A protective cover (214) is fixedly installed on one side of the frame (211), and a servo motor (213) is fixedly installed in the middle of the protective cover (214).

4. The device for hoisting a steel column downward according to claim 1, characterized in that: The frame (211) has a groove (215) in the middle, and two sliding blocks (216) are slidably locked in the middle of the groove (215).

5. The device for hoisting a steel column downward according to claim 1, characterized in that: The upper part of each of the two sliding blocks (216) is provided with multiple threaded holes, and the lower part of each of the two lifting rings (217) is provided with through holes corresponding to the positions of the threaded holes. The lifting rings (217) are detachably fixed to the sliding blocks (216) by fastening bolts that pass through the through holes and are screwed into the threaded holes.

6. The device for hoisting a steel column downward according to claim 2, characterized in that: The drive assembly includes a stepper motor (224) fixedly mounted on one side of the top of the base plate (221), and the top center of the drive gear (223) fixedly mounted on the drive end of the stepper motor (224).

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