Lifting and sliding device for steel structure roof construction

Abstract

The present invention belongs to the technical field of steel structure construction, and discloses a lifting and sliding device for steel structure roof construction, including a lifting mechanism and a sliding mechanism. The lifting mechanism is used to lift the truss to the concrete structure on both sides of the roof; the sliding mechanism includes two sets of slide rails and two push cylinders. The two sets of slide rails are respectively fixed on the concrete structures on both sides. The two sets of slide rails are provided with multiple slots. The multiple slots in each set of slide rails are distributed along the length direction of the slide rails. The two push cylinders are respectively provided at both ends of the truss, and one end of the push cylinder is hinged to the truss. When the push cylinder is extended and retracted, the other end of the push cylinder away from the truss can be sequentially engaged in the multiple slots to push the truss to slide in the two sets of slide rails to slide to the required position. The lifting and sliding device for steel structure roof construction has a simple structure and an ingenious design. It does not take up additional space and is more convenient to install and use.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structure construction, and in particular to a lifting and sliding device used for steel structure roof construction. Background Art

[0002] In urban construction, some venues are located in central urban areas. Due to geographical restrictions, the parking position of lifting equipment is affected by the construction space, making the conventional lifting of steel structures difficult to achieve. Conventional lifting construction methods require the steel structure to be assembled and lifted below the projection surface of the installation steel structure.

[0003] To address these issues, patent publication number CN104060844A discloses a sliding lifting device for the transfer floor trusses of high-rise steel structures. The sliding mechanism in this device includes a pulley block, a traction line, and a traction seat. The traction line is provided with a pulley block, one end of which is positioned with the traction seat, and the other end is connected to a sliding tire frame via a traction line. The sliding tire frame is provided with a truss. The traction line is connected to a hand chain hoist or winch to enable the sliding tire frame to drive the truss to slide. This sliding mechanism is complex and inconvenient to use, and the hand chain hoist and winch and other equipment still require a certain amount of space. Summary of the Invention

[0004] The object of the present invention is to provide a lifting and sliding device for steel structure roof construction, which does not occupy space on the construction site and is easy to operate.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] Lifting and sliding device for steel structure roof construction, including:

[0007] A lifting mechanism, used to lift the trusses onto the concrete structures on both sides of the roof;

[0008] The sliding mechanism includes two groups of slide rails and two pushing cylinders. The two groups of slide rails are respectively fixed on the concrete structures on both sides. The two ends of the truss can be slidably set on the two groups of slide rails. The two groups of slide rails are provided with multiple slots. The multiple slots in each group of slide rails are distributed along the length direction of the slide rails. The two pushing cylinders are respectively provided at the two ends of the truss, and one end of the pushing cylinder is hinged to the truss. When the pushing cylinder is extended and retracted, the other end of the pushing cylinder away from the truss can be sequentially engaged in the multiple slots to push the truss to slide in the two groups of slide rails.

[0009] As an optional solution, the other end of the push cylinder away from the truss is hinged to a reverse push seat, and a pin is provided on the reverse push seat;

[0010] The slide rail is a channel steel, and the slot is arranged on vertical plates parallel to each other on both sides of the channel steel, and the vertical plates are also provided with an inclined angle connected to the slot. When the push cylinder is retracted, the reverse thrust seat can slide between the two vertical plates and simultaneously drive the pin shaft to slide. The two ends of the pin shaft slide out of the slot through the inclined surfaces of the two inclined angles and can slide into the next adjacent slot.

[0011] As an optional solution, a plurality of supports are provided in the concrete structures on both sides, and the two ends of the truss can be fixedly provided on two corresponding supports on the concrete structures on both sides respectively;

[0012] A centering component is provided in the channel steel located at the support position, and the centering component can center the truss between the two supports.

[0013] As an optional solution, the centering assembly includes two wedge plates, the two wedge plates are fixedly connected to the vertical plates on both sides, and a chamfer is provided on one end of the wedge plate facing the lifting mechanism.

[0014] As an optional solution, the truss is provided with a friction reducing assembly, and the friction reducing assembly is arranged on the lower end surface of the truss which is slidably connected to the slide rail.

[0015] As an optional solution, the friction reduction assembly includes a base plate and a friction reduction plate, wherein the base plate is fixedly arranged on the lower end surface of the truss, and the friction reduction plate is arranged between the base plate and the bottom end surface of the slide rail.

[0016] As an optional solution, a galvanized iron sheet is provided on the bottom end surface of the slide rail, and the wear-reducing plate is slidably provided on the galvanized iron sheet.

[0017] As an optional solution, the slide rail includes multiple sections of channel steels connected to each other. Among the multiple sections of channel steels, except for the channel steel located on the support, the remaining channel steels are welded and fixed to the embedded parts in the concrete structure, and the two ends of the channel steel located on the support are respectively fixed to the adjacent channel steels by bolts.

[0018] As an optional solution, the lifting mechanism includes a lifting cylinder and a steel strand. There are four lifting cylinders, and two of the four lifting cylinders are grouped together and respectively arranged on the concrete structures on both sides. The steel strand is arranged at the output end of each lifting cylinder, and the end of the steel strand away from the lifting cylinder is connected to the truss.

[0019] As an optional solution, the lifting mechanism further includes two lifting frames, which are respectively arranged on the concrete structures on both sides, and the four lifting cylinders are respectively arranged on the two lifting frames in groups of two.

[0020] Beneficial effects of the present invention:

[0021] The present invention provides a lifting and sliding device for steel structure roof construction, comprising a lifting mechanism and a sliding mechanism. The lifting mechanism is used to lift the truss onto the concrete structure on both sides of the roof; the sliding mechanism comprises two sets of slide rails and two push cylinders, the two sets of slide rails are respectively fixed on the concrete structure on both sides, the two sets of slide rails are provided with multiple slots, and the multiple slots in each set of slide rails are distributed along the length direction of the slide rails. The two push cylinders are respectively provided at both ends of the truss, and one end of the push cylinder is hinged to the truss. When the push cylinder is extended and retracted, the other end of the push cylinder away from the truss can be sequentially engaged in the multiple slots to push the truss to slide in the two sets of slide rails to slide to the required position. The lifting and sliding device for steel structure roof construction has a simple structure and an ingenious design. It does not take up additional space and is more convenient to install and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of a truss according to an embodiment of the present invention disposed on two sets of slide rails;

[0023] Figure 2 1 is a schematic structural diagram of a lifting mechanism according to an embodiment of the present invention;

[0024] Figure 3 is a structural schematic diagram of a sliding mechanism involved in an embodiment of the present invention;

[0025] Figure 4 yes Figure 3 A magnified view of the structure at point A;

[0026] Figure 5 yes Figure 3 A magnified view of the structure at B in the middle;

[0027] Figure 6 is a structural diagram of a centering assembly involved in an embodiment of the present invention;

[0028] Figure 7 yes Figure 3 A magnified view of the structure at C in the middle;

[0029] Figure 8 It is a structural schematic diagram of a single truss with outriggers according to an embodiment of the present invention.

[0030] In the picture:

[0031] 100, truss; 101, friction reduction assembly; 1011, base plate; 1012, friction reduction plate; 102, outrigger; 1021, horizontal support; 1022, diagonal support;

[0032] 1. Lifting mechanism; 11. Lifting cylinder; 12. Steel strand; 13. Lifting frame;

[0033] 2. Sliding mechanism; 21. Slide rail; 211. Slot; 212. Wedge plate; 213. Positioning block; 22. Thrust cylinder; 221. Reverse thrust seat; 222. Pin; 23. Thrust hydraulic pump station. DETAILED DESCRIPTION

[0034] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, but are not to be construed as limiting the present invention.

[0035] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed or detachable connections, mechanical or electrical connections, direct or indirect connections through an intermediate medium, and internal communication between two elements or interaction between two elements. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0036] In the description of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0037] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0038] The embodiment of the present invention provides a lifting and sliding device for steel structure roof construction, which is applicable to construction environments restricted by geographical location, that is, the stacking of components and the parking position of lifting equipment are affected by space and conventional lifting methods cannot be used. Figure 1-Figure 7As shown, the lifting and sliding device for steel structure roof construction includes a lifting mechanism 1 and a sliding mechanism 2. Among them, the lifting mechanism 1 is set at the initial position of the truss 100, and is used to lift the truss 100 to the concrete structure on both sides of the roof; the sliding mechanism 2 can move the truss 100 from the initial position to the required position. The sliding mechanism 2 includes two sets of slide rails 21 and two push cylinders 22. The two sets of slide rails 21 are respectively fixed on the concrete structure on both sides. After the truss 100 is lifted into place, the two ends of the truss 100 can be respectively set on the two sets of slide rails 21 and can slide on the two sets of slide rails 21; both sets of slide rails 21 are provided with multiple slots 211, and the two sets of slide rails 21 are provided with multiple slots 211. The slots 211 on the slide rails 21 are arranged in a one-to-one correspondence, and the multiple slots 211 on each set of slide rails 21 are evenly spaced along the length of the slide rails 21 (i.e., the sliding direction of the truss 100); two jacking cylinders 22 are respectively arranged at both ends of the truss 100, and one end of the jacking cylinder 22 is hinged to the truss 100. During the extension and retraction process of the jacking cylinder 22, the other end of the jacking cylinder 22 facing away from the truss 100 can be sequentially engaged in the multiple slots 211. The slots 211 provide a reaction force for the jacking cylinder 22 to move the truss 100 to the required position for installation. It is understandable that the sliding mechanism 2 also includes two jacking hydraulic pump stations 23, which respectively provide hydraulic oil to the two jacking cylinders 22.

[0039] The lifting and sliding device used for steel structure roof construction has a simple structure and an ingenious design, does not occupy additional space, and is more convenient to install and use.

[0040] Specifically, refer to Figure 2 The lifting mechanism 1 includes four lifting cylinders 11 and steel strands 12. Four lifting cylinders 11 are provided, with each set of two being installed on the concrete structure on either side. A steel strand 12 is installed at the output end of each lifting cylinder 11, and the end of the steel strand 12 facing away from the lifting cylinder 11 is connected to the truss 100. By arranging four lifting cylinders 11 to simultaneously lift the truss 100, the lifting mechanism 1 provides greater stability. In this embodiment, the lifting mechanism 1 operates as follows: the steel strands 12 pass through the core barrels of the lifting cylinders 11 and are clamped by two anchors. The steel strands 12 are connected to the truss 100. During lifting, the lifting cylinders 11 repeatedly extend and retract, and the two anchors alternately tighten and loosen, allowing the steel strands 12 to drive the truss 100 upward. It is understood that the lifting mechanism 1 also includes two hydraulic pump stations to supply oil to the lifting cylinders 11. These hydraulic pump stations provide hydraulic oil to the two groups of lifting cylinders 11, respectively.

[0041] Optionally, the lifting mechanism 1 further includes four pull-wire sensors, which are respectively provided on the four lifting cylinders 11 for measuring the stroke of the lifting cylinders 11 in real time.

[0042] In order to make it more convenient for the lifting cylinder 11 to lift the truss 100, the lifting mechanism 1 also includes two lifting frames 13, which are respectively arranged on the concrete structures on both sides, and the facing ends of the two lifting frames 13 extend toward the space between the concrete structures on both sides. The four lifting cylinders 11 are respectively arranged on the two lifting frames 13 in groups of two, and are located on the parts of the lifting frames 13 extending toward the space between the concrete structures on both sides, so as to make lifting the truss 100 more convenient.

[0043] Reference Figure 3-Figure 5 Specifically, the other end of the pushing cylinder 22 away from the truss 100 is hinged with a reverse thrust seat 221, and a pin shaft 222 is provided on the reverse thrust seat 221; the slide rail 21 is a channel steel, and the cross-section of the channel steel is U-shaped, which includes a horizontal plate and two vertical plates arranged perpendicular to the horizontal plate. A card slot 211 is provided on the two vertical plates of each group of channel steels, and an inclined angle connected to the card slot 211 is also provided on the vertical plate. When the pushing cylinder 22 is contracted, the reverse thrust seat 221 can slide between the two vertical plates and simultaneously drive the pin shaft 222 to slide. The two ends of the pin shaft 222 slide out of the card slot 211 through the inclined surfaces of the two inclined angles and can continue to slide into the next adjacent card slot 211, so as to realize the sliding of the truss 100 on the slide rail 21.

[0044] Multiple supports are set in the concrete structures on both sides. The supports in the concrete structures on both sides correspond to each other and are arranged at intervals along the length direction of the slide rail 21. After the truss 100 slides to the required position (i.e. above the support), the two ends of the truss 100 are respectively installed and connected to the supports on both sides; in order to make the position of the truss 100 more accurate when installed on the support, a centering component is set in the channel steel at the support position, and the centering component can make the truss 100 centered between the two supports.

[0045] Specifically, refer to Figure 6 The centering assembly includes two wedge plates 212, which are respectively fixedly connected to the two vertical plates of the channel steel, and a chamfer is set on one end of the wedge plate 212 facing the lifting mechanism 1. The two wedge plates 212 form a conical opening. When the truss 100 slides in the channel steel, the conical opening formed by the two wedge plates 212 can force the truss 100 to be centered.

[0046] Furthermore, a positioning block 213 is provided on the horizontal plate within the channel steel. The positioning block 213 is welded to the horizontal plate to ensure that the truss 100 is accurately positioned and connected to the support. It is understood that the positioning block 213 needs to be welded before the truss 100 reaches the corresponding support.

[0047] In order to facilitate the installation of the truss 100 and the support, each set of slide rails 21 includes multiple sections of interconnected channel steels, and the channel steels are arranged in sections, which can reduce the difficulty of processing and transportation; and among the multiple sections of channel steels, except for the channel steels located on the support, the remaining channel steels are welded and fixed to the embedded parts in the concrete structure to ensure that the channel steels are firmly connected to the concrete structure; and the two ends of the channel steels located on the support are respectively fixed to the adjacent channel steels by bolts. When the truss 100 slides into place, the truss 100 can be vertically lifted by a hydraulic jack, and then the bolts are removed to remove the channel steels located on the support, and the hydraulic jack then lowers the truss 100 to the support for installation.

[0048] In order to reduce the wear of the truss 100, refer to Figure 3 and Figure 7 The truss 100 is provided with a friction reducing assembly 101, which is provided on the lower end surface of the truss 100 where it is slidably connected to the channel steel.

[0049] Specifically, the wear reducing assembly 101 includes a base plate 1011 and a wear reducing plate 1012. The base plate 1011 is fixed to the lower end surface of the truss 100 by screws. The wear reducing plate 1012 is arranged between the base plate 1011 and the horizontal plate of the channel steel, and the wear reducing plate 1012 is fixedly connected to the base plate 1011 by screws. The wear reducing plate 1012 can effectively reduce friction resistance and improve the smoothness of the sliding of the truss 100.

[0050] In order to reduce the wear on the channel steel, a galvanized iron sheet is provided on the horizontal plate of the channel steel, and the wear-reducing plate 1012 is slidably provided on the galvanized iron sheet.

[0051] In this embodiment, the two trusses 100 are connected to each other and can slide at the same time. The single truss 100 can also slide on the slide rail 21. Since the width of the single truss 100 is small, it is easy to cause the single truss 100 to fall when the jacking cylinder 22 pushes the single truss 100. In order to further improve the sliding stability of the single truss 100, refer to Figure 8 An outrigger 102 can be provided at one end of the single truss 100 away from the jacking cylinder 22. The outrigger 102 includes a horizontal support 1021 and an oblique support 1022. The horizontal support 1021 is fixedly connected to the single truss 100, and a friction-reducing assembly 101 is provided between the horizontal support 1021 and the horizontal plate of the channel steel. The oblique support 1022 is connected between the horizontal support 1021 and the single truss 100 to improve the stability of the horizontal support 1021.

[0052] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A lifting and sliding device for steel structure roof construction, characterized in that: include: A lifting mechanism (1), the lifting mechanism (1) is used to lift the truss (100) onto the concrete structures on both sides of the roof; The sliding mechanism (2) comprises two sets of slide rails (21) and two push oil cylinders (22). The two sets of slide rails (21) are respectively fixedly arranged on the concrete structures on both sides. The two ends of the truss (100) can be respectively slidably arranged on the two sets of slide rails (21). The two sets of slide rails (21) are both provided with a plurality of slots (211). The plurality of slots (211) in each set of slide rails (21) are arranged along the length of the slide rails (21). The two pushing oil cylinders (22) are respectively arranged at the two ends of the truss (100), and one end of the pushing oil cylinder (22) is hinged to the truss (100). When the pushing oil cylinder (22) is extended or retracted, the other end of the pushing oil cylinder (22) away from the truss (100) can be sequentially engaged in the plurality of the card slots (211) to push the truss (100) to slide in the two sets of the slide rails (21); The other end of the pushing oil cylinder (22) away from the truss (100) is hingedly connected to a reverse thrust seat (221), and a pin shaft (222) is provided on the reverse thrust seat (221); The slide rail (21) is a channel steel, and the slot (211) is provided on vertical plates parallel to each other on both sides of the channel steel, and the vertical plates are further provided with an inclined angle communicating with the slot (211). When the push cylinder (22) contracts, the reverse push seat (221) can slide between the two vertical plates and simultaneously drive the pin shaft (222) to slide. Both ends of the pin shaft (222) slide out of the slot (211) through the inclined surfaces of the two inclined angles and can slide into the next adjacent slot (211). A plurality of supports are provided in the concrete structures on both sides, and the two ends of the truss (100) can be fixedly provided on two supports correspondingly provided on the concrete structures on both sides; A centering component is provided in the channel steel at the support position, and the centering component can enable the truss (100) to be centrally arranged between the two supports.

2. The lifting and sliding device for steel structure roof construction according to claim 1 is characterized in that: The centering assembly comprises two wedge-shaped plates (212), the two wedge-shaped plates (212) being fixedly connected to the vertical plates on both sides, respectively, and a chamfer is provided on one end of the wedge-shaped plate (212) facing the lifting mechanism (1).

3. The lifting and sliding device for steel structure roof construction according to claim 1 is characterized in that: The truss (100) is provided with a friction reducing assembly (101), and the friction reducing assembly (101) is arranged on the lower end surface of the truss (100) which is slidably connected to the slide rail (21).

4. The lifting and sliding device for steel structure roof construction according to claim 3 is characterized in that: The wear reducing assembly (101) comprises a bottom plate (1011) and a wear reducing plate (1012); the bottom plate (1011) is fixedly arranged on the lower end surface of the truss (100); and the wear reducing plate (1012) is arranged between the bottom plate (1011) and the bottom end surface of the slide rail (21).

5. The lifting and sliding device for steel structure roof construction according to claim 4 is characterized in that: A galvanized iron sheet is provided on the bottom end surface of the slide rail (21), and the wear-reducing plate (1012) is slidably provided on the galvanized iron sheet.

6. The lifting and sliding device for steel structure roof construction according to claim 1 is characterized in that: The slide rail (21) comprises a plurality of sections of channel steels connected to each other. Among the plurality of sections of channel steels, except for the channel steels located on the support, the remaining channel steels are welded and fixed to the embedded parts in the concrete structure, and the two ends of the channel steels located on the support are respectively fixed to the adjacent channel steels by bolts.

7. The lifting and sliding device for steel structure roof construction according to claim 1 is characterized in that: The lifting mechanism (1) comprises a lifting cylinder (11) and a steel strand (12). Four lifting cylinders (11) are provided. Two of the four lifting cylinders (11) are arranged in a group on the concrete structures on both sides. The steel strand (12) is provided at the output end of each lifting cylinder (11). The end of the steel strand (12) away from the lifting cylinder (11) is connected to the truss (100).

8. The lifting and sliding device for steel structure roof construction according to claim 7 is characterized in that: The lifting mechanism (1) further comprises two lifting frames (13), the two lifting frames (13) being respectively arranged on the concrete structures on both sides, and the four lifting cylinders being respectively arranged on the two lifting frames (13) in groups of two.

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