Steel structure roof sliding K-shaped jig and sliding method thereof

Abstract

The application discloses a steel structure roof sliding K-shaped jig and a sliding method thereof. The steel structure roof sliding K-shaped jig is in a K shape as a whole, and comprises a rectangular part and a dovetail part. The dovetail part is surrounded by a first side, a second side, a third side, a fourth side and a fifth side which are connected in a head-tail mode. The first side is a connecting side of the dovetail part and the rectangular part, the second side and the fifth side are parallel to each other and flush with the frame of the rectangular part, and the third side, the fourth side and the first side intersect at the same point. The jig is spliced by frame-shaped unit racks. The steel structure roof sliding K-shaped jig has a reasonable structure design. Compared with a traditional flat plate structure, a notch (the dovetail position) is formed on one side of the moving direction, which can greatly facilitate the hoisting of roof frame members on the jig, avoid the clamping rod, reduce the requirement for hoisting equipment under the prior art condition, reduce the cost, improve the work efficiency, and has a very good application prospect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel structure construction, and relates to a steel structure roof sliding K-shaped jig and a sliding method thereof, in particular to a sliding jig with a special structure design and a control method thereof. BACKGROUND

[0002] Steel structure is a structure composed of steel materials, and is one of main building structure types. The structure is mainly composed of members such as steel beams, steel columns and steel trusses made of profiled steel and steel plates, and adopts rust removal and rust prevention processes such as silicification, pure manganese phosphating, water washing and drying, and galvanizing. Welding, bolts or rivets are usually used to connect between various members or parts. Because the self weight is relatively light, and the construction is simple, the steel structure is widely used in fields such as large workshops, venues and super high-rise buildings. In order to meet the requirements of building design, a large number of steel structure members are used, and higher requirements are put forward for steel structure installation. Due to the limitation of steel structure installation height, the limitation of narrow construction site and the limitation of hoisting weight of the crane, other construction schemes such as sliding or lifting can be considered at this time. For example, the span of the steel structure workshop of Baosteel non-oriented silicon steel product structure optimization project 4 area reaches 42 meters, and the length reaches 435 meters. The equipment foundation in the workshop cannot be installed in the cross section of the workshop by using the crane, and the electrical room and auxiliary room are designed outside the workshop. If the crane is used for cross installation, the hoisting tonnage requirement of the crane is high, the construction cost is high, the large crane arranged outside the workshop will block the temporary construction passage, and the safety hidden danger of vertical cross operation between the civil engineering and the steel structure is great. In addition, the construction progress of the roof steel structure and the civil engineering needs to be reasonably coordinated because the civil engineering work cannot use the tower crane after the roof steel structure construction is completed.

[0003] In order to improve the installation progress of the steel structure roof system, the steel structure roof sliding technology is developed by the person skilled in the art. The current steel structure roof sliding jig is generally a square planar structure. Although the square planar structure can provide sufficient support for the steel structure roof truss, it is arranged below the steel structure roof truss, can provide safety protection for construction when assembling the roof truss, and can avoid falling of parts or personnel. However, when assembling the roof truss, the crane needs to be used for hoisting the roof truss structural member. The number of tower cranes in the site is limited, and the tower crane needs to be used for hoisting the overweight workpiece. The use of the truck crane for hoisting the roof truss structural member can greatly improve the overall construction efficiency. However, the square planar jig will greatly affect the hoisting of the roof truss structural member (the clamping rod) by the truck crane, especially the large size jig needs a larger truck crane, which will greatly increase the operation cost. In addition, how to ensure the uniform sliding (synchronous sliding on both sides) of the steel structure roof is also a core difficulty faced by the current steel structure roof sliding technology.

[0004] Therefore, it is of great practical significance to develop a steel structure roof sliding jig with a reasonable structure design and convenient roof truss assembly work. SUMMARY

[0005] In view of the defects in the prior art, the steel structure roof sliding cradle provided by the present application has a reasonable structure design and can facilitate the assembly of the roof truss, so as to solve the problem that the prior art has an unreasonable design and affects the hoisting of the roof truss structure.

[0006] In order to achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0007] The steel structure roof sliding K-shaped cradle has a K-shaped overall structure, which comprises a rectangular portion and a dovetail portion.

[0008] The dovetail portion is formed by connecting the first edge, the second edge, the third edge, the fourth edge and the fifth edge in a head-to-tail manner, the first edge is the connecting edge between the dovetail portion and the rectangular portion, the second edge and the fifth edge are parallel to each other and flush with the frame of the rectangular portion, and the third edge, the fourth edge and the first edge intersect at the same point.

[0009] The cradle is assembled by frame-shaped unit frames, i.e., the rectangular portion and the dovetail portion are both assembled by frame-shaped unit frames, and the overall structure of the rectangular portion and the dovetail portion is stable.

[0010] The steel structure roof sliding K-shaped cradle has a reasonable overall structure design, compared with the traditional flat plate structure, the side of the moving direction has a notch (dovetail position), which can greatly facilitate the hoisting of the roof truss structure of the cradle, avoid the rod clamping, reduce the requirements for hoisting equipment under the prior art condition, reduce the cost, improve the work efficiency, and at the same time, the overall structure has good stability and can meet the bearing requirements of heavy roof truss, the contour is assembled by straight lines, the requirement for the assembly process is low, and the application prospect is excellent.

[0011] As a preferred technical solution:

[0012] The steel structure roof sliding K-shaped cradle as described above, wherein the third edge is perpendicular to the fourth edge.

[0013] The steel structure roof sliding K-shaped cradle as described above, wherein the cradle has a symmetrical structure, i.e., the dovetail position is symmetrical, which can maximize the avoidance of rod clamping.

[0014] The steel structure roof sliding K-shaped cradle as described above, wherein a platform plate is arranged on the upper side of the cradle to facilitate personnel walking and material stacking, and foreign matter or personnel falling can be avoided.

[0015] The steel structure roof sliding K-shaped cradle as described above, wherein a structure reinforcing device is arranged at the intersection point of the third edge, the fourth edge and the first edge.

[0016] The steel structure roof sliding K-shaped cradle as described above, wherein the walking direction of the cradle is perpendicular to the first edge.

[0017] A steel structure roof sliding K-shaped jig frame as described above, with the walking direction of the jig frame as the head-tail direction, a plurality of walking devices are installed on both sides of the jig frame and the walking devices on both sides correspond to each other, which can ensure sufficient support for the jig frame, the walking device is fixedly connected with the jig frame through the widening frame and the walking device is arranged below the widening frame.

[0018] A steel structure roof sliding K-shaped jig frame as described above, the walking device is a jig track wheel set;

[0019] The jig track wheel set comprises a wheel set shell, a driving wheel, a driven wheel, a speed reducer and a variable frequency motor;

[0020] The wheel set shell is a strip-shaped shell, both ends of one side of the wheel set shell are respectively provided with openings for exposing the driving wheel and the driven wheel, the driving wheel and the driven wheel are fixedly arranged in the wheel set shell through an axle, the driving wheel is connected with the output shaft of the variable frequency motor through the speed reducer, the driven wheel is connected with the driving wheel through a transmission mechanism, and the driving wheel and the driven wheel are arranged on the sliding track. The jig track wheel set comprises a pair of wheel sets, and compared with a single wheel structure, the overall structural stability is better. In addition, the driving wheel is driven by the variable frequency motor, and the speed of the driving wheel can be controlled by adjusting the frequency of the variable frequency motor, that is, the running speed of the jig track wheel set is controlled. Since the size of the jig frame is large, a plurality of jig track wheel sets need to be installed on both sides in cooperation. When sliding, the distance traveled by each jig track wheel set needs to be monitored in real time, and the speed of the jig track wheel set needs to be adjusted in real time to ensure that the jig frame slides horizontally and stably, that is, the deformation amount of the roof truss structure arranged on the jig frame is controlled compared with that before sliding, so that the roof truss structure is not deformed after sliding, and the assembly accuracy in the later stage is improved.

[0021] In addition, the present application also provides a sliding method of the steel structure roof sliding K-shaped jig frame as described above, and the steps are as follows:

[0022] (1) A plurality of calibration baselines are equally divided on the sliding tracks on both sides, the calibration baselines on different sliding tracks correspond to each other, the control system of the walking device is debugged and calibrated, and the walking device is tested and run;

[0023] (2) The interval between adjacent calibration baselines is taken as a single sliding operation period, the walking device is started to realize the sliding of the steel structure roof jig frame, and the deviation between the theoretical displacement and the actual displacement of the walking devices on both sides is checked after the completion of the sliding operation period;

[0024] (3) The control scheme of the walking device is adjusted according to the deviation obtained in step (2), and the next single sliding operation period is entered;

[0025] (4) Steps (2) and (3) are repeated until the sliding of the jig frame is completed.

[0026] The segmented control of the sliding process can improve the synchronization and operation stability of the overall sliding, can guarantee the stability of the steel structure roof truss on the steel structure roof truss in the sliding process to the maximum extent, so as to improve the assembly precision of the later roof truss, is simple to operate, has fast sliding speed, is low in cost, and has good application prospect.

[0027] The technical scheme above is only one possible technical scheme of the present application, and the protection scope of the present application is not limited to this, and a person skilled in the art can reasonably adjust the specific design according to actual needs.

[0028] The above application has the following advantages or beneficial effects:

[0029] (1) The steel structure roof sliding K-shaped truss of the present application has a reasonable overall structure design, compared with the traditional flat structure, a notch (dove tail position) is formed on one side of the moving direction, which can greatly facilitate the hoisting of the roof truss components on the truss, avoid the clamping rod, reduce the requirements for hoisting equipment under the prior art condition, reduce the cost, and improve the work efficiency;

[0030] (2) The steel structure roof sliding K-shaped truss of the present application has good overall structure stability, can meet the bearing requirements of heavy roof trusses, and the contour is formed by straight line splicing, which has low splicing process requirements;

[0031] (3) The sliding method of the steel structure roof sliding K-shaped truss of the present application controls the sliding process in sections, which can improve the synchronization and operation stability of the overall sliding, can guarantee the stability of the steel structure roof truss on the steel structure roof truss in the sliding process to the maximum extent, so as to improve the assembly precision of the later roof truss, is simple to operate, has fast sliding speed, is low in cost, and has good application prospect. BRIEF DESCRIPTION OF DRAWINGS

[0032] The present application and its features, shapes and advantages will become more apparent through reading the detailed description of the non-limiting embodiments with reference to the following drawings. The same reference signs indicate the same parts throughout the drawings. The drawings are not drawn to scale, and the emphasis is on showing the main idea of the present application.

[0033] Figure 1 is a top view of the steel structure roof sliding K-shaped truss of the present application;

[0034] Figure 2 is a left view of the steel structure roof sliding K-shaped truss of the present application;

[0035] Figure 3 and 4 are structure schematic diagrams of the truss track wheel set from different perspectives, respectively;

[0036] Among them, 1-rectangular part, 2-dovetail part, 21-first side, 22-second side, 23-third side, 24-fourth side, 25-fifth side, 3-widened frame, 4-wheel set housing, 5-drive wheel, 6-driven wheel, 7-reducer and frequency converter motor. Detailed Implementation

[0037] The structure of the present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0038] Example 1

[0039] A type of sliding K-shaped frame for steel roof structures, such as Figure 1 As shown, it is a symmetrical structure with an overall K-shape, which includes a rectangular part 1 and a dovetail part 2;

[0040] The dovetail portion 2 is formed by connecting the first side 21, the second side 22, the third side 23, the fourth side 24 and the fifth side 25 end to end. The first side 21 is the connecting side between the dovetail portion 2 and the rectangular portion 1. The second side 22 and the fifth side 25 are parallel to each other and are flush with the frame of the rectangular portion. The third side 23, the fourth side 24 and the first side 21 intersect at the same point. A structural reinforcement device is provided at the intersection point of the third side 23, the fourth side 24 and the first side 21. The third side 23 and the fourth side 24 are perpendicular.

[0041] The frame is assembled from frame-shaped unit frames. The upper side of the frame is covered with a platform plate. The walking direction of the frame is perpendicular to the first side 21. The walking direction of the frame is the head and tail direction. Multiple walking devices are installed on both sides of the frame and the walking devices on both sides correspond one to one. The walking devices are fixedly connected to the frame through the widened frame 3 and the walking devices are arranged below the widened frame.

[0042] Walking device such as Figures 3-4 As shown, this is a wheel set for a track. The wheel set includes a wheel set housing 4, a drive wheel 5, a driven wheel 6, a reducer, and a variable frequency motor 7. The wheel set housing 4 is a strip-shaped housing with openings at both ends of one side to expose the drive wheel 5 and the driven wheel 6. The drive wheel 5 and the driven wheel 6 are fixed inside the wheel set housing 4 by axles. The drive wheel 5 is connected to the output shaft of the variable frequency motor through the reducer. The driven wheel 6 is connected to the drive wheel 5 through a transmission mechanism. Both the drive wheel 5 and the driven wheel 6 are arranged on a sliding track.

[0043] The sliding method of the aforementioned K-type sliding frame for steel roof structures comprises the following steps:

[0044] (1) Divide multiple calibration baselines at equal intervals on the sliding tracks on both sides. The calibration baselines on different sliding tracks correspond to each other. Debug and calibrate the control system of the walking device and test run the walking device.

[0045] (2) Using the distance between adjacent calibration baselines as a single-segment sliding operation cycle, activate the walking device to realize the sliding of the steel structure roof frame. After completing the sliding operation cycle, check the deviation between the theoretical displacement and the actual displacement of the walking devices on both sides.

[0046] (3) Adjust the control scheme of the walking device according to the deviation obtained in step (2) and enter the next single-segment sliding operation cycle;

[0047] (4) Repeat steps (2) and (3) until the wheel frame is slid.

[0048] After practical application, it was found that the sliding K-type frame for steel structure roofs can not only greatly save material usage, but also greatly facilitate the hoisting of materials. Positions that previously required tower crane hoisting can now be hoisted by ordinary truck cranes after using the K-type frame, reducing the requirements for hoisting equipment under existing technology conditions, reducing costs, and improving work efficiency.

[0049] Verification has shown that the K-type sliding roof frame of this invention has a reasonable overall structural design. Compared with the traditional flat structure, the notch (dovetail position) on one side of the moving direction greatly facilitates the hoisting of roof components on the frame, avoids rod jamming, reduces the requirements for hoisting equipment under existing technical conditions, lowers costs, and improves work efficiency. The overall structure has good stability and can meet the load-bearing requirements of heavy roof trusses. Its outline is spliced ​​with straight lines, which reduces the requirements for splicing technology. The sliding method controls the sliding process in segments, which can improve the synchronization and operational stability of the overall sliding. It can maximize the stability of the steel roof truss mounted on the steel roof frame during the sliding process, so as to improve the assembly accuracy of the roof truss in the later stage. The operation is relatively simple, the sliding speed is fast, the cost is low, and it has great application prospects.

[0050] Those skilled in the art should understand that variations can be implemented by combining existing technology with the above embodiments, which will not be elaborated here. Such variations do not affect the essence of the present invention, and will not be elaborated here either.

[0051] The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in a conventional manner in the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention using the methods and techniques disclosed above, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the present invention. This does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the present invention's technical solutions still fall within the protection scope of the present invention.

Claims

1. A method of sliding a steel structural roof sliding K-type jig, characterized in that, The steel structure roof sliding K-shaped jig frame is in K shape as a whole, which comprises a rectangular part and a dovetail part. The dovetail part is surrounded by a first edge, a second edge, a third edge, a fourth edge and a fifth edge connected in a head-to-tail manner, the first edge is a connecting edge of the dovetail part and the rectangular part, the second edge and the fifth edge are parallel to each other and flush with the frame of the rectangular part, and the third edge, the fourth edge and the first edge intersect at the same point. The jig frame is spliced by frame-shaped unit frames. The third edge is perpendicular to the fourth edge. The jig frame is a symmetrical structure. The position where the third edge, the fourth edge and the first edge intersect is provided with a structure reinforcing device. With the walking direction of the jig frame as the head-to-tail direction, a plurality of walking devices are installed on both sides of the jig frame and the walking devices on both sides correspond to each other, the walking devices are fixedly connected to the jig frame through widening frames and are arranged below the widening frames. The steps of the sliding method are as follows: (1) a plurality of calibration baselines are equally divided on the sliding rails on both sides, the calibration baselines on different sliding rails correspond to each other, the control system of the walking device is debugged and calibrated, and the walking device is tested and run; (2) taking the distance between adjacent calibration baselines as a single sliding operation period, the walking device is started to realize the sliding of the steel structure roof jig frame, the deviation between the theoretical displacement and the actual displacement of the walking devices on both sides is checked after completing the sliding operation period; (3) the control scheme of the walking device is adjusted according to the deviation obtained in step (2), and the next single sliding operation period is entered; (4) steps (2) and (3) are repeated until the sliding of the jig frame is completed.

2. The sliding method of a sliding K-type formwork for a steel structure roof according to claim 1, characterized in that, The upper side of the jig frame is covered with a platform plate.

3. The sliding method of a sliding K-type formwork for a steel structure roof according to claim 1, characterized in that, The walking direction of the jig frame is perpendicular to the first edge.

4. The sliding method of a sliding K-type frame for a steel structure roof according to claim 1, characterized in that, The walking device is a jig track wheel set. The jig track wheel set comprises a wheel set shell, a driving wheel, a driven wheel, a speed reducer and a variable frequency motor. The wheel set shell is a strip-shaped shell as a whole, two ends of one side of the wheel set shell are respectively provided with openings for exposing the driving wheel and the driven wheel, the driving wheel and the driven wheel are fixed in the wheel set shell through wheel shafts, the driving wheel is connected with the output shaft of the variable frequency motor through the speed reducer, the driven wheel is connected with the driving wheel through a transmission mechanism, and the driving wheel and the driven wheel are arranged on the sliding rail.

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