Auxiliary sliding device for inclined stand and construction method thereof

Abstract

The present application relates to a kind of auxiliary sliding device for inclined stand and its construction method, device includes steel wheel trolley and steel plate track, the steel wheel trolley is installed at the bottom of all steel columns of inclined stand end, each steel wheel trolley bottom is provided with running wheel and guide wheel, the top of steel wheel trolley is provided with relevant joint bearing and flange plate, ensure that the top of steel wheel trolley is hinged with inclined stand structure;Steel plate track is set below the steel wheel trolley, in the position of flat stand, steel wheel trolley is placed on steel plate track, and steel wheel trolley makes inclined stand parallel movement with steel plate track.The present application sets steel plate track in the sliding range of inclined stand and sets steel wheel trolley at the end of inclined stand, so that inclined stand can be safely and effectively and quickly slid into position.

Description

Technical Field

[0001] This invention relates to the field of building construction, specifically to an auxiliary sliding device for sloping grandstands. Background Technology

[0002] Traditional steel structure sliding construction technology uses a hydraulic sliding block device to continuously push the structure into place. This method is costly, slow, and technically complex. Considering the cost and technical factors of traditional sliding construction, it is not suitable for high-frequency, small- to medium-sized steel structure sliding construction. With the continuous development of the construction industry, most buildings have increasingly higher requirements for structural performance, and designs increasingly favor the superior performance characteristics of steel structures, making steel structure buildings the mainstream of development.

[0003] A search revealed the following: ① A sliding trolley for a mobile belt loading and unloading machine, publication number CN205616278U; ② A rail-guided trolley system and a rail-guided trolley, publication number CN109641595B; ③ An auxiliary parallel device for a sliding trolley assembly, publication number CN216194111U, etc., all of which relate to trolleys used for sliding. Among them, ① the pulley trolley is fixed and suitable for mobile belt loading and unloading machines; ② the rail-guided trolley system has driving capability; ③ focuses on the parallel control of the sliding trolley. None of the above can meet the requirements for structural limiting and compatibility with structural sliding deviations during the structural sliding process. Summary of the Invention

[0004] The present invention aims to overcome the defects of the prior art and provide an auxiliary sliding device and its construction method for sloping grandstands. By setting steel plate tracks within the sliding range of the sloping grandstand and setting steel wheel trolleys at the ends of the sloping grandstands, the sloping grandstands can be slid into place safely, effectively and quickly.

[0005] To solve the above-mentioned technical problems, the present invention is implemented as follows:

[0006] An auxiliary sliding device for an inclined grandstand includes a steel wheel trolley and a steel plate track. The steel wheel trolley is installed at the bottom of all steel columns at the end of the inclined grandstand. Each steel wheel trolley is equipped with a traveling wheel and a guide wheel at its bottom. The top of the steel wheel trolley is equipped with a spherical bearing and a flange to ensure that the top of the steel wheel trolley is hinged to the inclined grandstand structure. A steel plate track is installed below the steel wheel trolley at the flat grandstand section. The steel wheel trolley is placed on the steel plate track, and the steel wheel trolley moves the inclined grandstand parallel to the steel plate track.

[0007] The construction method for the auxiliary sliding device used in the inclined grandstand is characterized by the following steps:

[0008] Step 1: After the steel plate track is installed, re-measure its parallelism and flatness. If any deviation is found, it should be corrected in time.

[0009] Step 2: Place a steel wheel trolley on each track in sequence. Place a limiting bracket at the front and back of the lower flange of the steel wheel trolley to ensure that the flange is horizontal. Install an extension column on the top of the steel wheel trolley and ensure that the center of the trolley is aligned with the center line of the track. The guide wheels on both sides of its bottom must not collide with the track.

[0010] Step 3: After the sloping grandstand is lifted synchronously using hydraulic cylinders, the steel wheel trolley is pushed to the bottom of the steel column flange at the rear of the sloping grandstand. At this time, the flange of the long column and the steel column on the top of the steel wheel trolley is aligned, and long bolts are inserted as limiters. The flange limiter bracket is then removed. At the same time, a multi-wheeled pallet truck is installed under the front of the sloping grandstand to provide the sliding driving force for the sloping grandstand.

[0011] Step 4: After the inclined grandstand is lowered synchronously using the hydraulic cylinder, the flange is now tightly fitted. Insert and tighten all the flange bolts of the extension column on the top of the steel wheel trolley.

[0012] Step 5: Disassemble all lifting cylinders, clean debris from the sliding rails and pallet truck travel path, as well as mechanical equipment on the sliding path of the inclined grandstand, to ensure safety during the sliding construction process;

[0013] Step 6: The operator controls the pallet cart to move synchronously and push the slanted grandstand to move horizontally. At this time, all the steel wheel trolleys at the rear of the slanted grandstand play a guiding and load-bearing role. During this process, the synchronization of the steel wheel trolleys and their alignment with the track plate must be observed throughout to ensure the smooth movement of the steel wheel trolleys and the sliding safety of the slanted grandstand structure.

[0014] Step 7: As the sloping grandstand is about to slide into place, slow down the pallet truck until the steel wheel trolley is in contact with the stop at the end of the slide. At this point, the slide is complete. Simultaneously, lift the grandstand, remove the steel column extension and the multi-wheel pallet truck in sequence, fix the steel wheel trolley, and begin the next construction cycle.

[0015] The beneficial effects of this invention are as follows: This application addresses the sliding construction of movable sloping grandstands. Independent steel-wheeled trolleys are installed at the bottom of all steel columns at the end of the grandstand. Each trolley has four traveling wheels and four guide wheels. Joint bearings are installed on the top of the trolleys to ensure a hinged connection between the trolley top and the grandstand structure, preventing excessive bending moments during sliding and avoiding adverse effects on the structure. Simultaneously, steel plate tracks are installed below the trolleys and at the flat grandstand section (sliding endpoint), and the tracks are welded and fixed to the main structure. The steel-wheeled trolleys are placed smoothly on the tracks, with equal clearance between the four guide wheels and the track sidewalls, ensuring the trolleys can travel smoothly above the tracks. During the actual sliding construction, the steel-wheeled trolleys act as guides and bearers, ensuring the sloping grandstand moves parallel to the tracks. After the structure has slid into place, the steel-wheeled trolleys are removed and used as shared devices to continue sliding on other sloping grandstand units.

[0016] This invention employs a steel plate track and a steel wheel trolley. While the trolley is moving, considering the lateral offset and front-to-back height difference of the structure, the joint bearings on the top of the trolley can eliminate the displacement changes of the structure. This application can be customized by a precision machining unit, with high precision control, high modularity, and easy turnover. The guide wheels and joint bearings set on the steel wheel trolley can meet the requirements for limiting the structure and compatibility with the structural slip deviation during the sliding process, and the structural design is ingenious.

[0017] This invention can be applied to the sliding construction of steel structures such as small and medium-sized conventional steel truss structures. Compared with traditional hydraulic slider jacking devices, its advantages are as follows:

[0018] (1) The structure and connection are simple and the construction is convenient;

[0019] (2) The guide wheel set at the bottom of the steel wheel trolley has rolling friction with the side of the track plate. The friction force is less than the sliding friction of conventional limiting measures, thus avoiding wear on the track plate.

[0020] (3) The device is connected to the main structure by a hinge. When the road surface is uneven, the bending moment that has a negative impact on the structure can be avoided.

[0021] (4) This device uses flange bolt connection nodes, and the device can be shared between construction units, which has high cyclicality and reduces construction costs.

[0022] As buildings demand increasingly higher performance and steel structures are used more frequently, this auxiliary device innovates upon the inconveniences of using traditional hydraulic sliding block jacking devices in the construction field. It enables the increasingly developed manufacturing processing and installation capabilities to be rationally and scientifically applied in the construction industry, meeting the development requirements of modern buildings. It can be widely used in the sliding installation of steel structures such as small and medium-sized steel truss systems. Attached Figure Description

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0024] Figure 1 This is a front view of the steel wheel trolley.

[0025] Figure 2 This is a side view of the steel wheel trolley.

[0026] Figure 3 This is a top view of the steel wheel trolley.

[0027] Figure 4 This is a schematic diagram of the steel wheel trolley being positioned in step 2.

[0028] Figure 5 This is a schematic diagram showing the connection between the steel wheel trolley and the inclined grandstand in steps 3 and 4.

[0029] Figure 6 This is a schematic diagram of the sliding of the inclined grandstand in steps 5 and 6.

[0030] Figure 7 This is a schematic diagram of the steel wheel trolley after it has slid into place in step 7. Detailed Implementation

[0031] like Figure 1-3 As shown: An auxiliary sliding device for an inclined grandstand includes a steel wheel trolley 1 and a steel plate track 2. The steel wheel trolley is installed at the bottom of all the steel columns at the end of the inclined grandstand. Each steel wheel trolley is equipped with a traveling wheel 3 and a guide wheel 4 at its bottom. The top of the steel wheel trolley is equipped with a spherical bearing 5 and a flange 6 to ensure that the top of the steel wheel trolley is hinged to the inclined grandstand structure. A steel plate track is set below the steel wheel trolley and at the flat grandstand 7. The steel wheel trolley is placed on the steel plate track, and the steel wheel trolley moves the inclined grandstand parallel to the steel plate track.

[0032] The specific construction methods and steps are as follows:

[0033] Step 1: After the steel plate track is installed, re-measure its parallelism and flatness. If any deviation is found, it should be corrected in time.

[0034] like Figure 4 As shown: Step 2, place one steel wheel trolley on each track in sequence. Place a limiting bracket 8 at the front and rear of the lower part of the trolley flange (to ensure the flange is horizontal). Install the extension column 9 on the top of the steel wheel trolley. At the same time, ensure that the center of the trolley is aligned with the center line of the track, and that the guide wheels on both sides of its bottom do not collide with the track.

[0035] like Figure 5 As shown: Step 3, after the hydraulic cylinder 10 synchronously lifts the sloping grandstand 11, the steel wheel trolley is pushed to the bottom of the steel column flange at the rear end of the sloping grandstand. At this time, the flange of the long column and the steel column on the top of the steel wheel trolley is aligned, and long bolts are inserted as limiters. The flange limit bracket is then removed. At the same time, a multi-wheeled pallet trolley 12 is installed below the front end of the sloping grandstand to provide the sliding driving force for the sloping grandstand.

[0036] Step 4: After the inclined grandstand is lowered synchronously using the hydraulic cylinder, the flange is now tightly fitted. Insert and tighten all the flange bolts of the extension column on the top of the steel wheel trolley.

[0037] like Figure 6 As shown: Step 5, disassemble all lifting cylinders, clean debris from the sliding rails and pallet truck travel paths, as well as mechanical equipment on the sliding path of the inclined grandstand, to ensure safety during the sliding construction process.

[0038] Step 6: The operator controls the pallet cart to move synchronously and push the slanted grandstand to move horizontally. At this time, all the steel wheel trolleys at the rear of the slanted grandstand play a guiding and load-bearing role. During this process, the synchronization of the steel wheel trolleys and their alignment with the track plate must be observed throughout to ensure the smooth movement of the steel wheel trolleys and the sliding safety of the slanted grandstand structure.

[0039] like Figure 7 As shown in step 7, when the sloping grandstand is about to slide into place, slow down the speed of the pallet truck until the steel wheel trolley is in contact with the stop at the end of the slide. At this point, the slide is complete. Simultaneously, lift the grandstand, remove the steel column extension column and the multi-wheel pallet truck in sequence, fix the steel wheel trolley, and start the next construction cycle.

Claims

1. An auxiliary sliding device for an inclined grandstand, comprising a steel wheel trolley and a steel plate track, wherein the steel wheel trolley is installed at the bottom of all steel columns at the end of the inclined grandstand, each steel wheel trolley is provided with a traveling wheel and a guide wheel at its bottom, and a joint bearing and a flange are provided at the top of the steel wheel trolley to ensure that the top of the steel wheel trolley is hinged to the inclined grandstand structure; a steel plate track is provided below the steel wheel trolley at the flat grandstand section, the steel wheel trolley is placed on the steel plate track, and the steel wheel trolley causes the inclined grandstand to move parallel to the steel plate track; characterized in that... The construction method of the auxiliary sliding device includes the following steps: Step 1: After the steel plate track is installed, re-measure its parallelism and flatness. If any deviation is found, it should be corrected in time. Step 2: Place a steel wheel trolley on each track in sequence. Place a limiting bracket at the front and back of the lower flange of the steel wheel trolley to ensure that the flange is horizontal. Install an extension column on the top of the steel wheel trolley and ensure that the center of the trolley is aligned with the center line of the track. The guide wheels on both sides of its bottom must not collide with the track. Step 3: After the sloping grandstand is lifted synchronously using hydraulic cylinders, the steel wheel trolley is pushed to the bottom of the steel column flange at the rear of the sloping grandstand. At this time, the flange of the long column and the steel column on the top of the steel wheel trolley is aligned, and long bolts are inserted as limiters. The flange limiter bracket is then removed. At the same time, a multi-wheeled pallet truck is installed under the front of the sloping grandstand to provide the sliding driving force for the sloping grandstand. Step 4: After the inclined grandstand is lowered synchronously using the hydraulic cylinder, the flange is now tightly fitted. Insert and tighten all the flange bolts of the extension column on the top of the steel wheel trolley. Step 5: Disassemble all lifting cylinders, clean debris from the sliding rails and pallet truck travel path, as well as mechanical equipment on the sliding path of the sloping grandstand, to ensure safety during the sliding construction process; Step 6: The operator controls the pallet cart to move synchronously and push the slanted grandstand to move horizontally. At this time, all the steel wheel trolleys at the rear of the slanted grandstand play a guiding and load-bearing role. During this process, the synchronization of the steel wheel trolleys and their alignment with the track plate must be observed throughout to ensure the smooth movement of the steel wheel trolleys and the sliding safety of the slanted grandstand structure. Step 7: When the sloping grandstand is about to slide into place, slow down the speed of the pallet truck until the steel wheel trolley is in contact with the vehicle stop at the end of the slide. At this time, the slide is completed. Simultaneously lift the grandstand, remove the steel column extension column and multi-wheel pallet truck in sequence, fix the steel wheel trolley, and enter the next construction cycle.

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