Tool table suitable for assembling and positioning large inhaul cable in constructional engineering

Abstract

The invention relates to the technical field of building engineering construction, in particular to a tool table suitable for building engineering large inhaul cable assembling and positioning, the tool table comprises a rail, a fixed platform and two movable platforms are arranged on the rail, and the two movable platforms are located on the two sides of the fixed platform respectively; lifting wheel sets are arranged at the two longitudinal ends of the top of the fixed platform; a rubber driving wheel is arranged above the fixed platform, the rubber driving wheel is mounted on a power device, and the power device is arranged at the top of the door-shaped frame; brackets are arranged at the two longitudinal ends of the movable platform and connected with the movable platform through a lifting mechanism, two symmetrically-arranged wedge-shaped cushion blocks are arranged on the brackets in the transverse direction, and the wedge-shaped faces of the wedge-shaped cushion blocks incline towards the middles of the brackets. The assembling and positioning tool has the freedom degree only in the axis direction of the inhaul cable joint, and accurate assembling and positioning of the inhaul cable joint can be achieved through axial sliding; meanwhile, the tool system is of a combined structure, can be assembled and disassembled on a construction site, and is convenient to transport and use.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and particularly to a tooling table suitable for the assembly and positioning of large cable stays in construction engineering. Background Art

[0002] The long-span prestressed space structure system is a prestressed steel structure system recognized internationally as having higher load-bearing efficiency and stronger spanning ability. As the span of the prestressed steel structure increases, the diameter of the cable stays used also increases, and the increase in the cable stay specifications and span makes the weight of a single cable stay heavier and heavier. Generally speaking, the cable stays transported from the manufacturer to the construction site are divided into two situations. One is small and medium-sized cable stays, where the cable stay head and the cable body part have been assembled in the factory and it is a complete cable stay. The other is large cable stays, where the cable body itself and the cable stay head part are transported separately and not connected together, which is a split structure. For the latter large split cable stays, generally, due to the excessive weight of the cable stay head part, when leaving the factory, the cable body part and the cable stay head part are shipped separately and assembled at the construction site. Since the cable body structure is an axially symmetric structure, the cable body part and the cable stay head part are connected by a threaded connection structure of an intermediate adjusting tie rod (or called a cable body adjusting nut). Therefore, the first necessary condition for assembly must ensure the coaxiality of the cable body, the cable stay head, and the adjusting tie rod. Although coaxiality sounds easy, for two long linear objects weighing several tons, to achieve coaxiality, and with extremely limited thread tolerances, the adjusted coaxial tolerance needs to be controlled at a millimeter level to ensure smooth connection and prevent damage to the connecting threads. This has brought great difficulties to the assembly and positioning of the cable stays. It is impossible to complete the assembly of the heavy cable stay head node by manpower alone, and construction equipment needs to be used to assist in the cable stay assembly and positioning work. Commonly used construction equipment includes, but is not limited to, tower cranes, crawler cranes, truck cranes, truck-mounted cranes, etc. At present, the assembly of large cable stay heads and cable bodies generally adopts a combination of construction machinery such as cranes and manual labor. This method is positively correlated with the proficiency of the crane operator in similar projects and the proficiency of the workers. During construction, in addition to visually observing the docking of the external thread and the internal thread at the cable body connection, it is also necessary to visually inspect whether the two axes are consistent. In reality, often when it is almost the same, the threads are started to be screwed, resulting in either the threads not being screwed in or possible damage to the threads at the entrance. Therefore, this construction highly depends on the proficiency and experience of the workers, and the construction efficiency is extremely low. It is necessary to find the most suitable angle to connect the threads through repeated visual alignment, which also brings several times the increase in construction time cost and mechanical cost for the use of construction equipment such as cranes. Summary of the Invention

[0003] Based on the above problems, the purpose of the present invention is to provide a tooling table suitable for the assembly and positioning of large cable stays in construction engineering. The present invention adopts the following technical solutions:

[0004] The present invention provides a tooling platform applicable to the assembly and positioning of large cable stays in construction projects, including a track, on which a fixed platform and two moving platforms are arranged. The two moving platforms are respectively located on both sides of the fixed platform, and the two moving platforms move along the track.

[0005] At both longitudinal ends of the top of the fixed platform, lifting wheel sets are arranged. Each lifting wheel set includes two supporting wheels arranged at a transverse interval. The supporting wheels are installed on the fixed platform, and the wheel axles of the supporting wheels are arranged longitudinally.

[0006] Above the fixed platform, a rubber driving wheel is arranged. The rubber driving wheel is installed on a power device, and the power device is arranged at the top of a gantry. Both side parts of the gantry are slidably connected to the fixed platform.

[0007] At both longitudinal ends of the moving platform, brackets are arranged. The brackets are connected to the moving platform through a lifting mechanism. Two symmetrically arranged wedge-shaped pads are arranged transversely on the brackets, and the wedge-shaped surfaces of the wedge-shaped pads are inclined towards the middle of the brackets.

[0008] Preferably, the track includes several track segments, and adjacent two track segments are connected through bolt assemblies. At the bottom of each track segment, leveling feet are arranged.

[0009] Preferably, the moving platform includes a moving platform frame. Four rollers are arranged at the bottom of the moving platform frame, and the rollers roll along the track laid below.

[0010] Preferably, the moving platform frame includes two semi-frame bodies assembled together. Four connecting cross beams are arranged between the two semi-frame bodies. The two ends of the connecting cross beams are inserted and matched with reserved connecting holes on the semi-frame bodies, and the ends of the connecting cross beams are fixed to the semi-frame bodies through bolt assemblies.

[0011] Preferably, vertically arranged guide sliding holes are arranged on the lateral part of the fixed platform. The lateral part of the gantry is slidably connected in the guide sliding holes. At the position corresponding to the guide sliding holes on the lateral part of the fixed platform, a tightening bolt is threadedly connected, and the tightening bolt abuts against the lateral part of the gantry.

[0012] Preferably, the power device includes a connecting seat, and the connecting seat is suspended and fixed at the top of the gantry; a motor and a speed reducer are installed on the connecting seat, the motor and the speed reducer are power-connected, and the rubber driving wheel is installed on the power output shaft of the speed reducer.

[0013] Preferably, the bracket is in a T shape;

[0014] The lifting mechanism includes slide rails and a telescopic driving member. The number of the slide rails is multiple, and they are vertically fixed on the moving platform. A slider is arranged on the slide rail, and the slider is fixed on the bracket. The telescopic driving member is located below the bracket, with its upper end connected to the bracket and its lower end connected to the moving platform.

[0015] Preferably, the telescopic driving member is a screw jack.

[0016] Preferably, a guide chute is arranged horizontally at the top of the bracket. A connecting block is fixed at the bottom of the wedge-shaped cushion block, and the connecting block is slidably connected in the guide chute. A driving rod arranged horizontally is provided inside the bracket. Both ends of the driving rod are rotatably connected to the bracket. One end of the driving rod extends outside the bracket and is connected to a handwheel. Two thread sections with opposite helix directions are arranged on the driving rod, and the two thread sections are respectively threadedly connected to the connecting block.

[0017] Preferably, an auxiliary cushion block is further arranged at the top of the bracket, and the auxiliary cushion block is located between the two wedge-shaped cushion blocks.

[0018] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0019] The assembly positioning tooling of the present invention has freedom only in the axial direction of the cable node axis. Precise assembly positioning of the cable node can be achieved through axial sliding. At the same time, the tooling system is a combined structure, which can be assembled and disassembled at the construction site, facilitating transportation and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the drawings.

[0021] Figure 1 FIG. is a schematic structural diagram of the large cable assembly positioning tooling table applicable to building engineering in the first embodiment of the present invention;

[0022] Figure 2 FIG. is a schematic structural diagram of the moving platform in the first embodiment of the present invention;

[0023] Figure 3 FIG. is a schematic structural diagram of the interior of the bracket in the first embodiment of the present invention;

[0024] Figure 4 FIG. is a schematic structural diagram of the power device in the first embodiment of the present invention;

[0025] Figure 5 FIG. is a schematic structural diagram of the fixed platform in the first embodiment of the present invention;

[0026] Figure 6 FIG. is a schematic structural diagram of the existing cable;

[0027] Figure 7 It is a schematic diagram of the use of the large cable assembly positioning tooling table applicable to building engineering in the first embodiment of the present invention;

[0028] Figure 8 It is a schematic structural diagram of the large cable assembly positioning tooling table applicable to building engineering in the second embodiment of the present invention.

[0029] Explanation of reference numerals: 1, track; 101, track section; 102, leveling support foot; 2, fixed platform; 201, guide sliding hole; 201, tightening bolt; 3, moving platform; 301, moving platform frame; 301-1, half frame; 301-2, connecting cross beam; 302, roller; 4, lifting wheel set; 401, lifting wheel; 5, rubber driving wheel; 6, power device; 601, connecting seat; 602, motor; 603, reducer; 7, gantry; 8, bracket; 801, guide chute; 9, lifting mechanism; 901, slide rail; 902, telescopic driving member; 10, wedge-shaped cushion block; 11, connecting block; 12, driving rod; 13, hand wheel; 14, threaded section; 15, auxiliary cushion block; 16, cable body; 17, cable head; 18, adjusting pull rod. Detailed implementation manners

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0031] Embodiment 1

[0032] As Figure 1 shown, in this embodiment, a tooling table applicable to the assembly and positioning of large cables in building engineering is disclosed, which includes a track 1, on which a fixed platform 2 and two moving platforms 3 are arranged. The fixed platform 2 is fixed to the lower track 1 by bolts. The two moving platforms 3 are respectively located on both sides of the fixed platform 2, and the two moving platforms 3 move along the track 1.

[0033] At both longitudinal ends of the top of the fixed platform 2, a lifting wheel set 4 is provided. Each lifting wheel set 4 includes two lifting wheels 401 arranged horizontally at intervals. The lifting wheels 401 are installed on the fixed platform 2 through wheel seats, and the wheel axles of the lifting wheels 401 are arranged longitudinally.

[0034] Above the fixed platform 2, a rubber driving wheel 5 is provided. The rubber driving wheel 5 is installed on a power device 6, and the power device 6 can drive the rubber driving wheel 5 to roll. The wheel axle of the rubber driving wheel 5 is arranged longitudinally. The power device 6 is fixed to the top of the gantry 7, and the gantry 7 is erected on the fixed platform 2.

[0035] Brackets 8 are provided at both longitudinal ends of the mobile platform 3. The brackets 8 are connected to the mobile platform 3 through a lifting mechanism 9. Two symmetrically arranged wedge-shaped pads 10 are provided transversely on the brackets 8, and the wedge surfaces of the wedge-shaped pads 10 are inclined towards the middle of the brackets 8.

[0036] In this embodiment, the track 1 includes a number of track segments 101. Adjacent two track segments 101 are connected through bolt assemblies. A leveling support foot 102 is provided at the bottom of each track segment 101. The number of leveling support feet 102 can be four, and they are respectively arranged at the four corner positions of the track segment 101.

[0037] As Figure 2 shown, in this embodiment, the mobile platform 3 includes a mobile platform frame 301. Four rollers 302 are installed at the bottom of the mobile platform frame 301, and the rollers 302 roll along the track 1 laid below.

[0038] The bracket 8 is in a T shape. Two symmetrically arranged wedge-shaped pads 10 are provided transversely on it. The vertical part of the bracket 8 is connected to the mobile platform frame 301 through a lifting mechanism 9. The lifting mechanism 9 includes a slide rail 901 and a telescopic driving member 902. The number of slide rails 901 is multiple, and they are vertically fixed on the mobile platform frame 301. A slider 903 is provided on the slide rail 901. The slider 903 is slidably clamped on the slide rail 901, and the slider 903 is fixed on the bracket 8. The telescopic driving member 902 is located below the bracket 8. The upper end of the telescopic driving member 902 is connected to the bracket 8, and the lower end is connected to the mobile platform 3. The telescopic driving member 902 drives the bracket 8 to rise or fall. The telescopic driving member 902 can be an oil cylinder, an electric cylinder or a screw jack.

[0039] As Figure 3 shown, in this embodiment, a guide chute 801 is provided transversely at the top of the bracket 8. A connecting block 11 is fixed at the bottom of the wedge-shaped pad 10. The connecting block 11 is slidably connected in the guide chute 801. A laterally arranged driving rod 12 is provided inside the bracket 8. Both ends of the driving rod 12 are rotatably connected to the bracket 8. One end of the driving rod 12 extends outside the bracket 8 and is connected to a handwheel 13. Two thread segments 14 with opposite helix directions are provided on the driving rod 12. The two thread segments 14 are respectively threadedly connected to the connecting block 11. By rotating the handwheel 13, the driving rod 12 can be driven to rotate, thereby realizing the control of the distance between the two wedge-shaped pads 10.

[0040] In this embodiment, an auxiliary pad 15 is further provided at the top of the bracket 8. The auxiliary pad 15 is located between the two wedge-shaped pads 10. A clamping groove is provided at the bottom of the auxiliary pad 15, and the auxiliary pad 15 is directly clamped on the bracket 8.

[0041] As Figure 1 、 4As shown in FIGS. 5, the two side portions of the gantry 7 are slidably connected to the fixed platform 2, and the height of the gantry 7 can be adjusted. Specifically, vertical guide sliding holes 201 are provided on the lateral side portions of the fixed platform 2, and the side portions of the gantry 7 are slidably connected in the guide sliding holes 201. Tightening bolts 202 are threadedly connected to the positions of the lateral side portions of the fixed platform 2 corresponding to the guide sliding holes 201, and the tightening bolts 202 abut against the side portions of the gantry 7.

[0042] As Figure 4 shown, in this embodiment, the power device 6 includes a connecting seat 601, and the connecting seat 601 is suspended and fixed on the top of the gantry 7; a motor 602 and a speed reducer 603 are installed on the connecting seat 601, the motor 602 and the speed reducer 603 are power-connected, and the rubber driving wheel 5 is installed on the power output shaft of the speed reducer 603.

[0043] The present invention is directed to large cables, among which as Figure 6 shown, the structure of the large cable mainly consists of a cable body 16, cable heads 17 and adjusting tie rods 18, and the two end portions of the adjusting tie rods 18 are connected to the cable body 16 and the cable heads 17 through threaded structures. As Figure 7 shown, the using process of the present invention: hoist the adjusting tie rod 18 onto the fixed platform 2 and place it on the supporting wheel set 4 (the supporting wheels 401 of the supporting wheel set 4 can be made of rubber or plastic to avoid damaging the threads on the adjusting tie rod 18), then hoist the cable body 16 and the cable heads 17 onto the two side moving platforms 3 respectively, and the cable body 16 and the cable heads 17 are placed on the brackets 8.

[0044] Then adjust the wedge-shaped pads 10 at both ends of the bracket 8 so that the wedge-shaped pads 10 form effective supports for the cable body 16 and the cable heads 17, and then adjust the lifting mechanisms 9 at both ends of the moving platform 3 so that the axes of the cable body 16 and the cable heads 17 coincide with the axis of the adjusting tie rod 18 (detect and check with the help of instruments, such as a level). After the above adjustment work is completed, use a bundling strap to further fix the cable body 16 and the cable heads 17.

[0045] Finally, hoist the gantry 7 onto the fixed platform 2, move the gantry 7 along the lower part of the guide sliding hole 201 so that the rubber driving wheel 5 abuts against and contacts the adjusting tie rod 18, and then use the tightening bolt 202 to fix the gantry 7. Start the power device 6 to drive the rubber driving wheel 5 to slowly roll. During the rolling process of the rubber driving wheel 5, the adjusting tie rod 18 is driven to rotate through friction (the adjusting tie rod 18 is integrally cylindrical), and the two side moving platforms 3 are pushed, so that the cable body 16 and the cable heads 17 gradually approach the adjusting tie rod 18, and the threaded connection between the adjusting tie rod 18 and the cable body 16 and the cable heads 17 is realized during the rotation process of the adjusting tie rod 18.

[0046] Embodiment Two

[0047] As Figure 8As shown, the mobile gantry 301 includes two semi-gantries 301-1 assembled together. There are four connecting crossbeams 301-2 arranged between the two semi-gantries 301-1. The two ends of the connecting crossbeam 301-2 are inserted and matched with the reserved connection holes on the semi-gantry 301-1. A plurality of adjustment holes are provided on the connecting crossbeam 301-2, and positioning holes are provided on the semi-gantry 301-1. The positioning holes on the semi-gantry 301-1 are fixed to the adjustment holes on the connecting crossbeam 301-2 through bolt assemblies. The purpose of setting the connecting crossbeam 301-2 is to adjust the longitudinal length of the mobile gantry 301 so as to adapt to different lengths of cable bodies 16 and cable heads 17.

[0048] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A tooling table applicable to the assembly and positioning of large cables in construction projects, comprising a track (1), characterized in that: A fixed platform (2) and two moving platforms (3) are arranged on the track (1). The two moving platforms (3) are respectively located on both sides of the fixed platform (2), and the two moving platforms (3) move along the track (1); Lifting wheel sets (4) are arranged at both longitudinal ends of the top of the fixed platform (2). Each lifting wheel set (4) includes two supporting wheels (401) arranged at a transverse interval. The supporting wheels (401) are installed on the fixed platform (2), and the axle of the supporting wheel (401) is longitudinally arranged; A rubber driving wheel (5) is arranged above the fixed platform (2). The rubber driving wheel (5) is installed on a power device (6). The power device (6) is arranged at the top of a gantry (7). Both side parts of the gantry (7) are slidably connected to the fixed platform (2); Brackets (8) are arranged at both longitudinal ends of the moving platform (3). The brackets (8) are connected to the moving platform (3) through a lifting mechanism (9). Two symmetrically arranged wedge-shaped pads (10) are arranged transversely on the brackets (8), and the wedge surfaces of the wedge-shaped pads (10) are inclined towards the middle of the brackets (8).

2. The tooling table applicable to the large cable assembly positioning in construction engineering according to claim 1, wherein: The track (1) includes several track segments (101). Adjacent two track segments (101) are connected through bolt assemblies. A leveling support foot (102) is arranged at the bottom of each track segment (101).

3. The tooling table applicable to the large cable assembly and positioning in construction engineering according to claim 1, characterized in that: The moving platform (3) includes a moving platform frame (301). Four rollers (302) are arranged at the bottom of the moving platform frame (301), and the rollers (302) roll along the track (1) laid below.

4. The tooling table applicable to the large cable assembly positioning in construction engineering according to claim 3, characterized in that: The moving platform frame (301) includes two semi-frame bodies (301-1) assembled together. Four connecting cross beams (301-2) are arranged between the two semi-frame bodies (301-1). The two ends of the connecting cross beam (301-2) are inserted and matched with reserved connection holes on the semi-frame body (301-1), and the end of the connecting cross beam (301-2) is fixed to the semi-frame body (301-1) through a bolt assembly.

5. The tooling table applicable to the large cable assembly positioning in construction engineering according to claim 1, characterized in that: A vertically arranged guiding and sliding hole (201) is arranged on the lateral side of the fixed platform (2). The lateral side of the gantry (7) is slidably connected in the guiding and sliding hole (201). A tightening bolt (202) is threadedly connected to the position of the lateral side of the fixed platform (2) corresponding to the guiding and sliding hole (201), and the tightening bolt (202) abuts against the lateral side of the gantry (7).

6. The tooling table applicable to the large cable assembly positioning in construction engineering according to claim 1, wherein: The power device (6) includes a connecting seat (601). The connecting seat (601) is hung and fixed at the top of the gantry (7); A motor (602) and a reducer (603) are installed on the connecting seat (601). The motor (602) and the reducer (603) are power-connected, and the rubber driving wheel (5) is installed on the power output shaft of the reducer (603).

7. The tooling table applicable to the large cable assembly positioning in construction engineering according to claim 1, characterized in that: The bracket (8) is in a T shape; The lifting mechanism (9) includes slide rails (901) and telescopic driving members (902). The number of the slide rails (901) is multiple, and they are vertically fixed on the moving platform (3). A slider (903) is arranged on the slide rail (901), and the slider (903) is fixed on the bracket (8). The telescopic driving member (902) is located below the bracket (8). The upper end of the telescopic driving member (902) is connected to the bracket (8), and the lower end is connected to the moving platform (3).

8. The tooling table applicable to the large cable assembly positioning in construction engineering according to claim 6, wherein: The telescopic driving member (902) is a screw jack.

9. The tooling table applicable to the large cable assembly positioning in construction engineering according to claim 1, characterized in that: A guide chute (801) is arranged horizontally at the top of the bracket (8). A connecting block (11) is fixed at the bottom of the wedge-shaped cushion block (10), and the connecting block (11) is slidably connected in the guide chute (801). A driving rod (12) arranged horizontally is arranged inside the bracket (8). Both ends of the driving rod (12) are rotatably connected to the bracket (8). One end of the driving rod (12) extends outside the bracket (8) and is connected to a hand wheel (13). Two thread segments (14) with opposite helix directions are arranged on the driving rod (12), and the two thread segments (14) are respectively threadedly connected to the connecting block (11).

10. The tooling table applicable to the large cable assembly positioning in construction engineering according to claim 1, characterized in that: An auxiliary cushion block (15) is further arranged at the top of the bracket (8), and the auxiliary cushion block (15) is located between the two wedge-shaped cushion blocks (10).

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