Steel structure jig frame for on-site horizontal splicing of steel pipe arch

Abstract

The utility model relates to the field of steel structure machining, in particular to a steel structure jig frame for on-site horizontal splicing of a steel pipe arch, the steel structure jig frame for on-site horizontal splicing of the steel pipe arch comprises a foundation, a plurality of jig frames are arranged on the foundation, each jig frame comprises a base, a clamping structure and a sliding structure, one side of each base is fixedly connected with the foundation, and the other side of each base is fixedly connected with the clamping structure. The side, away from the foundation, of the base is slidably connected with the clamping structures, each jig frame is correspondingly provided with two clamping structures, the two clamping structures jointly act to be used for clamping a steel pipe arch, the sliding structure is slidably connected with the two clamping structures, and the sliding structure is used for driving the two clamping structures to be close to or away from each other. By means of the arrangement, when the steel pipe arch units are welded, the multiple steel pipe arch units are horizontally spliced and placed on the jig frame, and the welding precision effect is achieved when the steel pipe arch units are spliced.

Description

Technical Field

[0001] The present application relates to the field of steel structure processing, and in particular to a steel structure frame for horizontally assembling steel pipe arches on site. Background Art

[0002] Since the completion of my country's first steel tube concrete arch bridge, the Sichuan Wangcang Bridge in 1990, more than 400 bridges have been built so far. Over the past 30 years, with the continuous advancement of science and technology and the emergence of high-performance materials, steel tube concrete arch bridges have developed vigorously and improved significantly in terms of design structure, span, construction difficulty, and process technology level.

[0003] In the existing welding of steel tube concrete arch bridges, the steel tube arch units to be welded are usually first lifted by a crane, and then the abutment parts of each steel tube arch unit are welded one by one.

[0004] The above-mentioned prior art solutions have the following defects: during the on-site hoisting process, the two steel tube arch units cannot be completely accurately aligned, resulting in a position deviation between the two steel tube arches after welding and low welding accuracy. Utility Model Content

[0005] In order to improve the welding accuracy when steel tube arch units are spliced, the present application provides a steel structure frame for on-site horizontal splicing of steel tube arches.

[0006] The above technical objectives of this application are achieved through the following technical solutions:

[0007] A steel structure frame for on-site horizontal assembly of steel pipe arches is provided with a foundation, on which a plurality of frames are arranged, each frame comprising a base, a clamping structure and a sliding structure, one side of each base being fixedly connected to the foundation, and a side of each base away from the foundation being slidably connected to the clamping structure; two clamping structures are correspondingly arranged on each frame, and the two clamping structures work together to clamp the steel pipe arch; the sliding structure is slidably connected to the two clamping structures, and the sliding structure is used to drive the two clamping structures to move closer to or away from each other.

[0008] By adopting the above scheme, when welding a plurality of steel tube arch units, before placing the plurality of steel tube arch units in the clamping structures of a plurality of frames respectively, the sliding structure is first adjusted, and the sliding structure drives the two clamping structures to slide relative to each other, so that the clamping structure clamps the steel tube arch, thereby facilitating the precise positioning of the welding position of the steel tube arch, and temporarily locking the steel tube arch through the clamping structure, and then welding is performed on the abutting parts of the plurality of steel tube arch units. At this time, the steel tube arch is in a horizontal state during welding, and the relative position between the two steel tube arch units to be welded is accurately determined, thereby achieving the goal of improving the welding accuracy when the steel tube arch units are spliced.

[0009] Furthermore, a connecting structure is arranged between the clamping structure and the base, and the connecting structure includes a connecting block and a supporting plate, one end of the connecting block is fixedly connected to a side of the base away from the foundation, and one end of the connecting block away from the base is fixedly connected to the supporting plate, and a sliding groove is provided on the supporting plate, and the sliding groove is used for sliding connection with the clamping structure.

[0010] By adopting the above scheme, a connecting block is fixedly connected to the side of the base away from the foundation, and the connecting block is used to connect the base with the clamping structure. A supporting plate is fixedly connected to the end of the connecting block away from the base. A sliding groove is provided on the supporting plate, and the sliding groove is used to engage with the clamping structure to limit the two clamping structures so that the two clamping structures are close to or away from each other in the sliding groove.

[0011] Furthermore, each clamping structure comprises a support plate and an abutment plate, the support plate and the abutment plate are fixedly connected to each other, and an angle is formed between the two. One end of each support plate away from the abutment plate is slidably connected to the bearing plate.

[0012] By adopting the above solution, the support plate and the abutment plate are fixedly connected to form an angle, and when the steel pipe arch is placed in the clamping structure, the abutment plate abuts against the steel pipe arch, thereby enabling the clamping structure to effectively clamp the steel pipe arch.

[0013] Furthermore, the sliding structure includes a bidirectional lead screw and a slider. The bidirectional lead screw is rotatably connected to the supporting plate. Two sliders are provided. One slider is threadedly connected to each of the threads of the bidirectional lead screw with opposite rotation directions. Each slider is fixedly connected to a support plate. The slider is used to drive the two support plates to move closer to or away from each other.

[0014] By adopting the above scheme, a bidirectional lead screw is rotatably connected to the bearing plate, and a slider is threadedly connected to the threads of the bidirectional lead screw with opposite rotation directions, so that the rotation of the bidirectional lead screw can drive the slider to move closer or farther away from each other, and then the slider is fixedly connected to the support plate, so that the movement of the slider drives the support plate to move, so that the rotation of the bidirectional lead screw can be controlled to make the support plates move closer or farther away from each other, thereby driving the distance between the two abutment plates, so that the two abutment plates are suitable for clamping steel pipe arches with different diameters.

[0015] Furthermore, a sliding rod is provided between the two support plates, the sliding rod passes through the two support plates and is slidably connected to the two support plates, and the sliding rod is used to support the steel pipe arch.

[0016] By adopting the above solution, a sliding rod is set between the two support plates. The sliding rod is used to support the steel pipe arch, thereby reducing the force on the support plate and the abutment plate. The sliding rod is slidably connected to the two support plates, so that when the movement of the two support plates is adjusted, the sliding rod and the support plates can slide relative to each other.

[0017] Furthermore, the base includes a support column and a double-jointed I-shaped plate, one end of the support column is fixedly connected to the double-jointed I-shaped plate, and the end supporting the support column away from the double-jointed I-shaped plate is fixedly connected to a fixing plate, and the fixing plate is used to be fixedly connected to the foundation.

[0018] By adopting the above scheme, a fixing plate is fixedly connected to the end of the support column close to the ground, and the fixing plate is used to fix the support column to the foundation, so that the tire frame is fixedly connected to the foundation, avoiding the displacement of the tire frame leading to the displacement of the steel pipe arch, resulting in deviation in the relative positions of several steel pipe arches during welding, resulting in reduced welding quality.

[0019] Furthermore, a rainproof device is provided on the foundation, and the rainproof device includes a canopy and a slide rail. The slide rail is provided on both sides of the tire frame and is fixedly connected to the foundation, and the canopy is slidably connected to the slide rail.

[0020] By adopting the above scheme, slide rails are provided on both sides of the tire frame, and the awning is slidably connected to the slide rails. When it rains, one end of the awning can be fixed to the slide rail, and the other end of the awning is pulled, and the awning and the slide rail slide relatively, so that the awning is unfolded to shield the steel pipe arch and prevent rain from affecting the welding effect of the steel pipe arch; when the weather is clear, one end of the awning is fixed, and the other end of the awning is pushed to move in the direction opposite to the unfolding direction of the awning, and the awning and the slide rail slide relatively to complete the storage of the awning.

[0021] Furthermore, locking pieces are provided at both ends of each of the slide rails, and the locking pieces are used to lock the relative positions of the awning and the rails when the relative positions of the awning and the slide rails are fixed.

[0022] By adopting the above solution, locking parts are set at both ends of each slide rail. After the canopy is unfolded by the slide rail on rainy days, the two ends of the slide rail are fixed with locking parts to prevent the canopy from moving. On sunny days, the locking parts are removed and the canopy is moved by sliding the slide rail and then stored.

[0023] In summary, this application has the following technical effects:

[0024] 1. By setting up a tire frame, when welding a plurality of steel tube arch units, before placing the plurality of steel tube arch units in the clamping structures of the tire frames respectively, first adjust the sliding structure, and the sliding structure drives the two clamping structures to slide relative to each other, so that the clamping structure clamps the steel tube arch, and then weld the abutting parts of the plurality of steel tube arch units. At this time, the steel tube arch is in a horizontal splicing state during welding, and the relative position between the two steel tube arch units to be welded is determined, thereby achieving the improvement of the welding accuracy when splicing the steel tube arch units;

[0025] 2. By setting a sliding structure, a bidirectional lead screw is rotatably connected to the bearing plate, and a slider is threadedly connected to the threads of the bidirectional lead screw in opposite directions, so that the rotation of the bidirectional lead screw can drive the slider to move relatively close or away, and then the slider is fixedly connected to the support plate, so that the movement of the slider drives the support plate to move, so that the rotation of the bidirectional lead screw can control the support plates to move closer or farther from each other;

[0026] 3. By setting a sliding rod, a fixed plate is fixedly connected to the end of the support column close to the ground. The fixed plate is used to fix the support column to the foundation, so that the tire frame is fixedly connected to the foundation to avoid displacement of the tire frame, which causes displacement of several steel pipe arches, resulting in deviation in the relative positions of several steel pipe arches during welding, causing reduced welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of a steel structure frame for horizontal assembly of steel pipe arches on site in the present application;

[0028] Figure 2 It is a schematic diagram of the tire frame structure of the present application;

[0029] Figure 3 It is a structural schematic diagram of the sliding structure of the present application;

[0030] Figure 4 It is a structural schematic diagram of the canopy in the unfolded state of the present application.

[0031] In the figure, 1. base; 11. support column; 111. fixing plate; 112. anchor bolt; 2. double-piece I-shaped plate; 3. clamping structure; 31. support plate; 32. abutment plate; 4. connection structure; 41. connection block; 42. bearing plate; 421. first slide groove; 422. second slide groove; 5. sliding structure; 51. bidirectional screw; 52. slider; 6. linkage rod; 7. sliding rod; 8. fastener; 9. foundation; 10. rainproof device; 101. canopy; 102. slide rail; 20. locking member; 30. steel pipe arch; 40. rotating handle. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with the accompanying drawings.

[0033] Reference Figure 1The present embodiment provides a steel structure frame for on-site horizontal splicing of steel pipe arches, including a foundation 9, on which a plurality of frames are arranged, each of which includes a base 1, a clamping structure 3 and a sliding structure 5, one side of the base 1 is fixedly connected to the foundation 9, and the side of the base 1 away from the foundation 9 is slidably connected to the clamping structure 3, and each frame is correspondingly provided with two clamping structures 3, which work together to clamp the steel pipe arch, and the sliding structure 5 is slidably connected to the two clamping structures 3, and the sliding structure 5 is used to drive the two clamping structures 3 to move closer to or away from each other, and a plurality of steel pipe arches 30 are placed on the plurality of clamping structures 3 and abutted against the clamping structures 3, thereby completing the precise positioning of the splicing positions of the plurality of steel pipe arches 30, and then welding the steel pipe arches 30.

[0034] Reference Figure 2 Each base 1 includes a support column 11 and a double-piece I-shaped plate 2. In this embodiment, each base 1 is correspondingly provided with two support columns 11, one end of each support column 11 is fixedly connected to a fixing plate 111, each fixing plate 111 is provided with a plurality of anchor bolts 112, and the plurality of anchor bolts 112 pass through the fixing plate 111 and are fixedly connected to the foundation 9, and one end of each support column 11 away from the foundation 9 is fixedly connected to the double-piece I-shaped plate 2.

[0035] Reference Figure 1 and Figure 2 , one end of each double-jointed I-shaped board 2 away from the support column 11 is fixedly connected to the connecting structure 4, and the connecting structure 4 includes a connecting block 41 and a bearing plate 42. In this embodiment, each connecting structure 4 includes two connecting blocks 41, one end of each connecting block 41 is fixedly connected to the double-jointed I-shaped board 2, and one end of each connecting block 41 away from the double-jointed I-shaped board 2 is fixedly connected to the bearing plate 42, and the clamping structure 3 and the sliding structure 5 are both arranged on the bearing plate 42.

[0036] Reference Figure 1 and Figure 3 Each sliding structure 5 includes a bidirectional lead screw 51 and a slider 52. A first slide groove 421 is provided on the bearing plate 42. The bidirectional lead screw 51 is rotatably connected to the first slide groove 421. Two sliders 52 are provided. A slider 52 is correspondingly provided on the two sections of the threads of the bidirectional lead screw 51 with opposite rotation directions. Each slider 52 is threadedly connected to the bidirectional lead screw 51. A rotating handle 40 is provided on the outer side of the first slide groove 421. One end of the bidirectional lead screw 51 passes through the side wall of the first slide groove 421 and is fixedly connected to the rotating handle 40.

[0037] Two clamping structures 3 are correspondingly arranged on each bearing plate 42, and each clamping structure 3 includes a supporting plate 31 and an abutting plate 32. The supporting plate 31 and the abutting plate 32 are fixedly connected, and the two are arranged at an angle. The abutting plate 32 abuts against the steel pipe arch 30. A second sliding groove 422 is also provided on the bearing plate 42, and one end of the supporting plate 31 away from the abutting plate 32 is slidably connected to the second sliding groove 422; the two supporting plates 31 are correspondingly arranged with two sliding blocks 52, and a linkage rod 6 is arranged between the sliding block 52 and the supporting plate 31, and one end of the linkage rod 6 is connected to the sliding block 52 is fixedly connected, and the other end of the linkage rod 6 is fixedly connected to the support plate 31, so that by rotating the bidirectional lead screw 51, the bidirectional lead screw 51 rotates along its own axis in the first slide groove 421, thereby driving the two sliders 52 threadedly connected to the bidirectional lead screw 51 to move closer to or away from each other, and the two sliders 52 move closer to or away from each other, thereby driving the two support plates 31 to move closer to or away from each other through the linkage rod 6, thereby driving the abutting plates 30 abutting against the steel tube arch 30 to move closer to or away from each other, so that it is suitable for clamping steel tube arches 30 of different sizes.

[0038] Reference Figure 3 A sliding rod 7 is provided between the two support plates 31 in each tire frame, and the two ends of the sliding rod 7 pass through the two support plates 31 respectively, and the sliding rod 7 is slidably connected to the two support plates 31; a fastener 8 is provided between the sliding rod 7 and the two support plates 31, one end of the fastener 8 passes through the side wall of the support plate 31 and abuts against the sliding rod 7, and the fastener 8 is threadedly connected to the support plate 31. When the relative position of the sliding rod 7 and the support plate 31 is determined, each fastener 8 passes through the support plate 31 and abuts against the sliding rod 7.

[0039] Reference Figure 1 and Figure 4 A rainproof device 10 is also provided on the foundation 9. The rainproof device 10 includes a canopy 101 and a slide rail 102. The slide rail 102 is provided on both sides of the foundation 9. The canopy 101 is slidably connected with the slide rail 102. When it rains, one end of the canopy 101 can be fixed to the slide rail 102, and the other end of the canopy 101 is pulled, and the canopy 101 and the slide rail 102 slide relatively, so that the canopy 101 is unfolded to shield the steel pipe arch 30, so as to prevent rain from affecting the welding effect of the steel pipe arch 30; when the weather is clear, When the awning 101 is unfolded, one end of the awning 101 is fixed, and the other end of the awning 101 is pushed to move in the direction opposite to the unfolding direction of the awning 101. The awning 101 and the slide rail 102 slide relative to each other to complete the storage of the awning 101. Locking members 20 are provided at both ends of each slide rail 102. When the relative positions of the awning 101 and the slide rail 102 are fixed, the locking members 20 are fixedly connected to the slide rail 102 and the awning 101. The locking members 20 are used to lock the relative positions of the awning 101 and the slide rail 102.

[0040] The implementation principle of a steel structure cradle for on-site horizontal assembly of steel pipe arches in the embodiment of the present application is as follows: when welding a plurality of steel pipe arches 30, firstly, the positions of the plurality of cradles are determined according to the curvature of the steel pipe arches 30, and then the anchor screws are rotated to fix the plurality of cradles to the foundation 9; then, the relative positions of the two clamping structures 3 in each cradle are adjusted according to the diameter of the steel pipe arch 30, and firstly, the rotating handle 40 is rotated, and the rotating handle 40 drives the bidirectional lead screw 51 to rotate along its own axis in the first slide groove 421, thereby driving the two sliders 52 threadedly connected with the bidirectional lead screw 51 to approach or move away from each other, and the two sliders 52 approach or move away from each other, thereby driving the two support plates 31 to approach or move away from each other through the linkage rod 6, until the positions of the two support plates 31 enable the two supporting structures to clamp the steel pipe arch 30. ; Then rotate the fastener 8 to fix the sliding rod 7 and the support plate 31; then accurately place a number of steel pipe arches 30 on a number of clamping structures 3, and weld the adjacent two steel pipe arches 30 at their abutting points in turn; when it rains, use a locking piece to fix one end of the awning 101 to the slide rail 102, pull the other end of the awning 101, and slide the awning 101 and the slide rail 102 relative to each other, so that the awning 101 is unfolded, and then use the locking piece 20 to fix the sliding end of the awning 101, so that the awning 101 blocks the steel pipe arch 30 and prevents rain from affecting the welding effect of the steel pipe arch 30; when the weather is clear, open the locking piece 20 at one end of the awning 101, push the awning 101 closer to the other end, and slide the awning 101 and the slide rail 102 relative to each other to complete the storage of the awning 101.

[0041] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A steel structure frame for horizontal assembly of steel pipe arches on site, characterized in that: The invention comprises a foundation (9), on which a plurality of tire frames are arranged, each of which comprises a base (1), a clamping structure (3) and a sliding structure (5), one side of each base (1) is fixedly connected to the foundation (9), and the side of each base (1) away from the foundation (9) is slidably connected to the clamping structure (3); each tire frame is correspondingly provided with two clamping structures (3), and the two clamping structures (3) are used to clamp the steel pipe arch (30); the sliding structure (5) is slidably connected to the two clamping structures (3), and the sliding structure (5) is used to drive the two clamping structures (3) to move closer to or farther away from each other.

2. The steel structure cradle for on-site horizontal assembly of steel pipe arches according to claim 1, characterized in that: A connecting structure (4) is provided between the clamping structure (3) and the base (1), and the connecting structure (4) comprises a connecting block (41) and a bearing plate (42), one end of the connecting block (41) is fixedly connected to a side of the base (1) away from the foundation (9), and one end of the connecting block (41) away from the base (1) is fixedly connected to the bearing plate (42), and a second sliding groove (422) is provided on the bearing plate (42), and the second sliding groove (422) is used for sliding connection with the clamping structure (3).

3. The steel structure frame for horizontal assembly of steel pipe arches on site according to claim 2, characterized in that: Each clamping structure (3) comprises a support plate (31) and an abutment plate (32), the support plate (31) being fixedly connected to the abutment plate (32), and one end of each support plate (31) away from the abutment plate (32) being slidably connected to the bearing plate (42).

4. The steel structure cradle for on-site horizontal assembly of steel pipe arches according to claim 3, characterized in that: The sliding structure (5) comprises a bidirectional lead screw (51) and a slider (52). A first slide groove (421) is provided on the bearing plate (42). The bidirectional lead screw (51) is arranged in the first slide groove (421). The bidirectional lead screw (51) is rotatably connected to the first slide groove (421). Two sliders (52) are provided. Both sliders (52) are arranged on the slide groove (421). Two sections of the bidirectional lead screw (51) with opposite rotation directions are respectively threadedly connected to a slider (52). Each slider (52) is fixedly connected to a support plate (31). The slider (52) is used to drive the two support plates (31) to move closer to or away from each other.

5. The steel structure cradle for on-site horizontal assembly of steel pipe arches according to claim 3, characterized in that: A sliding rod (7) is arranged between the two support plates (31), the sliding rod (7) passes through the two support plates (31) and is slidably connected to the two support plates (31), and the sliding rod (7) is used to support the steel pipe arch (30).

6. The steel structure cradle for on-site horizontal assembly of steel pipe arches according to claim 2, characterized in that: The base (1) comprises a support column (11) and a double-jointed I-shaped plate (2); the double-jointed I-shaped plate (2) is fixedly connected to a connection block (41); one end of the support column (11) is fixedly connected to the double-jointed I-shaped plate (2); one end of the support column (11) away from the double-jointed I-shaped plate (2) is fixedly connected to a fixing plate (111); the fixing plate (111) is used for being fixedly connected to a foundation (9).

7. The steel structure frame for horizontal assembly of steel pipe arches on site according to claim 1, characterized in that: A rainproof device (10) is also provided on the foundation (9), and the rainproof device (10) comprises a rain shed (101) and a slide rail (102). The slide rail (102) is provided on both sides of the tire frame and is fixedly connected to the foundation (9), and the rain shed (101) is slidably connected to the slide rail (102).

8. The steel structure cradle for on-site horizontal assembly of steel pipe arches according to claim 7, characterized in that: Both ends of each of the slide rails (102) are provided with locking members (20), and the locking members (20) are used to lock the relative positions of the awning (101) and the slide rail (102) when the relative positions of the awning (101) and the slide rail (102) are fixed.

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