A steel structure support guide device for steel truss beam top-pushing construction

Abstract

The present invention belongs to the technical field of steel truss top-pushing construction, and in particular, is a steel structure support and guide device used for steel truss top-pushing construction, comprising a mounting plate for installation and fixing, guide rods are fixedly mounted on the relative surfaces of the two mounting plates, and a plurality of guide rods are evenly and equally arranged with the axis of the mounting plate as the center of the circle, and a driving tube is fixedly mounted on the surface of the plurality of guide rods, and a driving mechanism is provided on the inner wall of the driving tube, and the driving mechanism includes a telescopic tube, and the telescopic tube realizes the telescopic operation of the telescopic tube through the driving mechanism. The steel structure support and guide device used for steel truss top-pushing construction can release torque in time during steel truss top-pushing construction by providing an anti-strand winding mechanism, thereby solving the problem of uneven force on steel strands or improper strong pulling and pulling; solving the problem of steel strands being twisted, and then automatically guiding the pulling and moving of steel strands, thereby enhancing the efficiency of construction.

Description

Technical Field

[0001] The invention relates to the technical field of steel truss girder jacking construction, and in particular to a steel structure supporting and guiding device used for steel truss girder jacking construction. Background Art

[0002] The jacking construction method refers to a construction method in which the beam body is cast or assembled section by section on the embankment behind the abutment, and is pushed longitudinally by a jacking device so that the beam body is put into place through the temporary sliding device on the top of each pier. The working principle of the jacking construction method can be described by three main links of periodic operation, namely, casting or assembling concrete beam segments on a fixed site behind the abutment, tensioning permanent and temporary prestressed steel bars, and pushing the beam body section by section with the help of a jacking device set at the bottom of the beam on the abutment or support close to the beam segment pre-site and a sliding device set on each pier support or temporary pier.

[0003] During the existing steel truss girder jacking construction, the beam body is pulled and moved for assembly. Pulling torque is easily generated during the pulling of the steel strands, resulting in the inability to eliminate the torque, causing the steel strands to be entangled during the pulling and unable to be automatically guided and combed. In addition, the clamping force of the clamping mechanism of the steel strands is easily loosened and slipped during the clamping and pulling due to the gravity of the beam body, resulting in low construction work efficiency. Therefore, a steel structure support and guiding device for steel truss girder jacking construction is needed. Summary of the invention

[0004] Based on the existing technical problems, the present invention proposes a steel structure support and guide device for steel truss girder jacking construction.

[0005] The present invention proposes a steel structure support guide device for steel truss girder jacking construction, comprising a mounting plate for installation and fixing, two guide rods are fixedly mounted on the opposite surfaces of the mounting plates, a plurality of the guide rods are evenly and equally arranged with the axis of the mounting plate as the center of the circle, a driving tube is fixedly mounted on the surface of the plurality of the guide rods, a driving mechanism is arranged on the inner wall of the driving tube, the driving mechanism comprises a telescopic tube, and the telescopic tube realizes telescopic operation of the telescopic tube through the driving mechanism;

[0006] One end of the telescopic tube is provided with a clamping mechanism and an anti-twisting wire winding mechanism, respectively. The clamping mechanism includes a clamping block. The arc surface of the clamping block is provided with first insertion holes. The first insertion holes are evenly and equally arranged with the axis of the clamping block as the center of the circle. The inner wall of the first insertion hole is slidably plugged with a steel strand, and the steel strand is clamped or released by the clamping mechanism.

[0007] The anti-twisting wire winding mechanism includes a ring, the arc surface of the ring is rotatably connected to the inner wall of the telescopic tube through a turntable bearing, the inner wall arc surface of the ring is provided with a second insertion hole, the inner walls of a plurality of the second insertion holes are respectively slidably plugged with the arc surface relative to the steel strand, and the ring realizes the action of rotating to adjust and release the winding force through the anti-twisting wire winding mechanism.

[0008] Preferably, a first driving cavity is opened inside the driving tube, and the inner walls at both ends of the first driving cavity are fixedly connected with a first oil injection pipe and a second oil injection pipe respectively, and the inner wall of one end of the first oil injection pipe and the inner wall of one end of the second oil injection pipe are both fixedly connected with the oil outlet pipe of the oil pump.

[0009] Preferably, a first sliding hole is opened on the inner wall of one end of the first driving cavity, and the inner walls around the first sliding hole are slidably inserted with the inner wall of the telescopic tube and the outer arc surface of the telescopic tube, a moving plug is fixedly installed on one end of the telescopic tube, and the inner arc surface and the outer arc inner wall of the moving plug are fixedly installed with first sealing rings, and the surfaces of the two first sealing rings are pressed against the inner wall of the first driving cavity, and a second sealing ring is fixedly installed on the inner wall of the first sliding hole, and the arc surface of the second sealing ring is pressed against the surface of the telescopic tube.

[0010] Preferably, the inner walls of the plurality of first through holes respectively correspond to the inner walls of the plurality of second through holes, a second driving cavity is provided inside the clamping block, second sliding holes are provided on the arc inner walls all around the interior of the second driving cavity, and one ends of the plurality of second sliding holes are respectively fixedly connected to the inner walls relative to the first through holes.

[0011] Preferably, a clamping rod is slidably inserted into the inner wall of the second sliding hole, one end of the clamping rod is adapted to the relative arc surface of the steel strand, and one end of the clamping rod is squeezed against the relative arc surface of the steel strand, and hydraulic oil is arranged inside the second driving cavity.

[0012] Preferably, a push plug is fixedly installed on one end of the clamping rod, a first sealing gasket is fixedly installed on the surrounding arc surfaces of the push plug, the surrounding surfaces of the first sealing gasket are slidably inserted with the inner wall of the second driving cavity, a spring is fixedly installed on the side surface of the push plug close to the second sliding hole, and one end of each of the springs is fixedly installed with the relative inner wall of the second driving cavity.

[0013] Preferably, a power tube is fixedly installed at the center of one side surface of the clamping block, one end of the power tube is fixedly connected to the relative inner wall of the second driving chamber, and a refueling pipe is fixedly connected to the inner wall of one end of the power tube close to the clamping tube, and a valve is provided on the surface of the refueling pipe.

[0014] Preferably, an electric telescopic rod is fixedly installed on the inner wall of one side of the power tube, a pressure plug is fixedly installed on the telescopic end of the electric telescopic rod, a second sealing gasket is fixedly installed on the inner wall of the pressure plug, and the surface of the second sealing gasket is slidably plugged into the inner wall of the power tube.

[0015] Preferably, the inner wall of the collar is fixedly mounted on the arc surface of the clamping block, a gear ring is fixedly mounted on the outer arc surface of the collar, a conductive slip ring is fixedly mounted on one side surface of the clamping block, and the conductive slip ring is electrically connected to the electric telescopic rod through wires.

[0016] Preferably, a mounting groove is provided at one end of the outer arc surface of the telescopic tube, a driving motor is fixedly installed on the inner wall of the mounting groove, a gear shaft is fixedly installed on the output shaft of the driving motor through a coupling, a gear is fixedly installed on one end of the gear shaft, and the tooth groove of the gear is meshed with the tooth groove of the gear ring.

[0017] The beneficial effects of the present invention are:

[0018] 1. By setting up a driving mechanism, the two driving pipes are driven to increase pressure at the same time during the top-pushing construction of the steel truss beam, and the pulling operation is performed. The beam section is dragged to slide on the slideway set on the top of the temporary pier, and the traction beam body is installed in place. The whole process is automated to enhance the construction efficiency.

[0019] 2. By setting up the clamping mechanism, the steel strand can be clamped quickly during the top-pushing construction of the steel truss. The two driving tubes are driven to increase pressure at the same time, thereby controlling the extension of the telescopic tube to drive the pulling operation of the steel strand. When the pulling stroke is completed, the clamping state is released, and when the telescopic tube is retracted, the clamping rod is controlled to come to the rear of the initial steel strand clamping, and another clamping operation is performed. Then the reciprocating motion of the telescopic tube drives the steel strand to be pulled. The whole process has a high degree of automation, and the hydraulic pressure is used to make the steel strand clamping force strong, which prevents the steel strand from being out of the clamping state during pulling, thereby enhancing the pulling efficiency.

[0020] 3. By setting up a mechanism to prevent stranded wires from winding, the torque can be released in time during the top-pushing construction of the steel truss, solving the problem of uneven force on the stranded wires or improper strong pulling and pulling; solving the problem of stranded wires twisting, and then automatically guiding the stranded wires to be pulled and moved, thereby enhancing the efficiency of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a steel structure support and guide device used for steel truss girder jacking construction;

[0022] Figure 2 A three-dimensional diagram of a driving pipe structure of a steel structure support guide device used in steel truss girder jacking construction;

[0023] Figure 3 It is an exploded view of a steel structure support guide device used for steel truss girder jacking construction;

[0024] Figure 4 A cross-sectional view of a clamping block structure of a steel structure support guide device used in steel truss girder jacking construction;

[0025] Figure 5 A three-dimensional diagram of a telescopic tube structure of a steel structure support guide device used in steel truss girder jacking construction;

[0026] Figure 6 A steel structure support guide device for steel truss beam jacking construction Figure 4 A magnified view of the structure at center;

[0027] Figure 7 A steel structure support guide device for steel truss beam jacking construction Figure 5 Enlarged view of the structure at point B in the middle.

[0028] In the figure: 1. mounting plate; 2. guide rod; 3. drive tube; 4. telescopic tube; 41. first drive cavity; 42. first oil filling tube; 43. second oil filling tube; 44. first sliding hole; 45. moving plug; 46. first sealing ring; 47. second sealing ring; 5. clamping block; 51. second drive cavity; 52. second sliding hole; 53. clamping rod; 54. push plug; 55. first sealing gasket; 56. spring; 57. power tube; 58. oil filling tube; 59. valve; 510. electric telescopic rod; 511. pressure plug; 512. second sealing gasket; 6. first through hole; 7. steel strand; 8. collar; 81. gear ring; 82. conductive slip ring; 83. mounting groove; 84. drive motor; 85. gear shaft; 86. gear; 9. second through hole. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] Reference Figure 1-7 , a steel structure support guide device for steel truss beam jacking construction, such as Figure 1 As shown, it includes a mounting plate 1 for installation and fixing, guide rods 2 are fixedly installed on the relative surfaces of the two mounting plates 1, and multiple guide rods 2 are evenly and equally arranged with the axis of the mounting plate 1 as the center of the circle, and driving tubes 3 are fixedly installed on the surfaces of the multiple guide rods 2. The inner wall of the driving tube 3 is provided with a driving mechanism, and the driving mechanism includes a telescopic tube 4. The telescopic tube 4 realizes the telescopic operation of the telescopic tube 4 through the driving mechanism.

[0031] In order to realize that the driving tube 3 provides power to drive the telescopic tube 4 to move, a first driving chamber 41 is provided inside the driving tube 3, and the inner walls at both ends of the first driving chamber 41 are fixedly connected with a first oil injection pipe 42 and a second oil injection pipe 43 respectively. The inner wall at one end of the first oil injection pipe 42 and the inner wall at one end of the second oil injection pipe 43 are fixedly connected with the oil outlet pipe of the oil pump, thereby achieving the effect of opening the first driving chamber 41 on the inner wall of the driving tube 3, and adding hydraulic oil to the inside of the first driving chamber 41 through the first oil injection pipe 42 and the second oil injection pipe 43, so that the inside of the first driving chamber 41 generates oil pressure.

[0032] like Figure 3-Figure 4 As shown, in order to use the oil pressure inside the first driving chamber 41 to squeeze the telescopic tube 4 to move, and to seal and prevent leakage during movement, a first sliding hole 44 is provided on the inner wall of one end of the first driving chamber 41, and the inner walls around the first sliding hole 44 are slidably plugged with the inner wall of the telescopic tube 4 and the outer arc surface of the telescopic tube 4, and a moving plug 45 is fixedly installed at one end of the telescopic tube 4, and the inner arc surface and the outer arc inner wall of the moving plug 45 are fixedly installed with first sealing rings 46, and the surfaces of the two first sealing rings 46 are squeezed with the inner wall of the first driving chamber 41, and the inner wall of the first sliding hole 44 is fixedly installed with a second sealing ring 47, the arc surface of the second sealing ring 47 is squeezed with the surface of the telescopic tube 4, so that the hydraulic oil is first injected into the first driving chamber 41 through the first oil injection pipe 42. When the oil pressure in the first oil injection chamber continues to increase, the oil pressure pushes the moving plug 45 to move to one side, thereby driving the telescopic tube 4 to extend outward. When the hydraulic oil enters from the second oil injection pipe 43, the oil pressure on the other side of the moving plug 45 is increased, thereby controlling the moving plug 45 to move in the opposite direction, driving the telescopic tube 4 to retract and return to its original position. During the telescopic movement of the moving plug 45 and the telescopic tube 4, the sealing operation is performed by the first sealing ring 46 and the second sealing ring 47 mounted on the surface.

[0033] By setting up the driving mechanism, it is achieved that during the top-pushing construction of the steel truss beam, the two driving pipes 3 are driven to increase pressure at the same time, and the pulling operation is performed, and the beam section is dragged to slide on the slideway set on the top of the temporary pier, and the pulling beam body is installed in place. The whole process is automated, which enhances the construction efficiency.

[0034] One end of the telescopic tube 4 is respectively provided with a clamping mechanism and an anti-twisting wire winding mechanism, the clamping mechanism includes a clamping block 5, and the arc surface around the clamping block 5 is provided with a first insertion hole 6, and multiple first insertion holes 6 are evenly and equally arranged with the axis of the clamping block 5 as the center of the circle, and the inner wall of the first insertion hole 6 is slidably inserted with a steel strand 7, and the steel strand 7 is clamped or released by the clamping mechanism.

[0035] In order to insert and connect the steel strands 7 for transportation, the inner walls of the multiple first insertion holes 6 are arranged to correspond to the inner walls of the multiple second insertion holes 9 respectively, and a second driving cavity 51 is opened inside the clamping block 5. The inner walls of the second driving cavity 51 are all surrounded by arcs and second sliding holes 52 are opened. One ends of the multiple second sliding holes 52 are respectively fixedly connected to the inner walls of the first insertion holes 6, thereby controlling the steel strands 7 to pass between the first insertion holes 6 and the second insertion holes 9, and driving the steel strands 7 to clamp and release through the second driving cavity 51 inside the clamping block 5.

[0036] In order to convey the steel strand 7 by clamping, a clamping rod 53 is slidably inserted into the inner wall of the second sliding hole 52, one end of the clamping rod 53 is adapted to the relative arc surface of the steel strand 7, and one end of the clamping rod 53 is squeezed against the relative arc surface of the steel strand 7, and hydraulic oil is arranged inside the second driving chamber 51, so that the steel strand 7 is conveyed by driving the clamping rod 53 to extend outward so that one end squeezes the steel strand 7 to fix it, and the telescopic tube 4 drives the steel strand 7 to move when it is extended, and the clamping operation is released when the telescopic tube 4 moves in the reverse direction, and the clamping rod 53 is driven to the rear of the steel strand 7 by the reverse movement of the telescopic tube 4, so that the telescopic tube 4 reciprocates to drive the steel strand 7 to move.

[0037] like Figure 7 As shown, in order to control the simultaneous extension and contraction of multiple clamping rods 53 to drive the steel strand 7 to lock, a push plug 54 is fixedly installed at one end of the clamping rod 53, and a first sealing gasket 55 is fixedly installed on the surrounding arc surfaces of the push plug 54. The surrounding surfaces of the first sealing gasket 55 are slidably inserted with the inner wall of the second driving chamber 51, and a spring 56 is fixedly installed on the side surface of the push plug 54 close to the second sliding hole 52, and one end of multiple springs 56 is fixedly installed on the relative inner wall of the second driving chamber 51, thereby achieving the increase of the internal oil pressure of the second driving chamber 51, and the multiple push plugs 54 are driven by the oil pressure to work and extend outward at the same time, thereby driving the multiple clamping rods 53 to move outward at the same time to squeeze the steel strand 7 to lock it, and the push plug 54 is sealed by the movement of the first sealing gasket 55.

[0038] In order to adjust the oil pressure inside the second driving chamber 51, a power tube 57 is fixedly installed at the center of one side surface of the clamping block 5, one end of the power tube 57 is fixedly connected to the relative inner wall of the second driving chamber 51, and the inner wall of one end of the power tube 57 close to the clamping tube is fixedly connected to a refueling pipe 58, and a valve 59 is provided on the surface of the refueling pipe 58, so that the hydraulic oil is filled and adjusted by opening the valve 59 during the first use, and the hydraulic oil can be added to the inside of the power tube 57 through the oil pipe connected to the refueling pipe 58, and the hydraulic oil can be added when the oil pressure is not reduced enough.

[0039] like Figure 6 As shown, an electric telescopic rod 510 is fixedly installed on the inner wall of one side of the power tube 57, and a pressure plug 511 is fixedly installed on the telescopic end of the electric telescopic rod 510. A second sealing gasket 512 is fixedly installed on the inner wall of the pressure plug 511. The surface of the second sealing gasket 512 is slidably plugged with the inner wall of the power tube 57, thereby achieving the effect of driving the electric telescopic rod 510 to extend or retract to drive the pressure plug 511 to reciprocate. When the electric telescopic rod 510 extends, it drives the pressure plug 511 to squeeze the hydraulic oil inside the power tube 57 to increase the oil pressure. When the electric telescopic rod 510 retracts, it drives the pressure plug 511 to move in the opposite direction, thereby controlling the oil pressure to decrease, and controlling the movement and sealing of the pressure plug 511 through the second sealing gasket 512.

[0040] By setting up the clamping mechanism, the steel strand 7 can be clamped quickly through the clamping mechanism during the steel truss jacking construction. The two driving tubes 3 are driven to increase pressure at the same time, thereby controlling the extension of the telescopic tube 4 to drive the pulling operation of the steel strand 7. When the pulling stroke is completed, the clamping state is released. When the telescopic tube 4 is retracted, the clamping rod is controlled to come to the rear of the initial clamping of the steel strand 7, and another clamping operation is performed. Then the reciprocating movement of the telescopic tube 4 drives the steel strand 7 to pull. The whole process has a high degree of automation, and the hydraulic pressure is used to make the clamping force of the steel strand 7 strong, which prevents the steel strand 7 from being out of the clamping state during pulling, thereby enhancing the pulling efficiency.

[0041] like Figure 2 As shown, the anti-twisting wire winding mechanism includes a ring 8, the arc surface of the ring 8 is rotatably connected to the inner wall of the telescopic tube 4 through a turntable bearing, and a second insertion hole 9 is opened on the arc surface of the inner wall of the ring 8. The inner walls of the plurality of second insertion holes 9 are respectively slidably plugged with the arc surfaces of the relative steel strands 7. The ring 8 realizes the rotation adjustment and release of the winding force through the anti-twisting wire winding mechanism.

[0042] In order to electrically connect the electric telescopic rod 510, the inner wall of the ring 8 is fixedly installed on the arc surface of the clamping block 5, a gear ring 81 is fixedly installed on the outer arc surface of the ring 8, and a conductive slip ring 82 is fixedly installed on one side surface of the clamping block 5. The conductive slip ring 82 is electrically connected to the electric telescopic rod 510 through an electric wire, thereby achieving the effect of controlling the electrical connection of the electric telescopic rod 510 through the conductive slip ring 82, and then when the gear ring 81 rotates, the damage caused by the entanglement of the power cord due to the existing direct wired connection is avoided.

[0043] like Figure 5As shown, a mounting groove 83 is provided at one end of the outer arc surface of the telescopic tube 4, and a driving motor 84 is fixedly installed on the inner wall of the mounting groove 83. A gear shaft 85 is fixedly installed on the output shaft of the driving motor 84 through a coupling, and a gear 86 is fixedly installed on one end of the gear shaft 85. The tooth grooves of the gear 86 mesh with the tooth grooves of the gear ring 81, so that when the steel strand 7 causes an angle change during movement and stretching to cause it to be entangled, the driving motor 84 is controlled to work to drive the gear shaft 85 to rotate, and then the gear 86 is driven to rotate, thereby driving the gear ring 81 to rotate, and the winding force of the steel strand 7 is controlled to be released, thereby enhancing the extension and transportation efficiency of the steel strand 7 and avoiding the effect of reducing the working efficiency due to the existing winding.

[0044] By setting up an anti-strand winding mechanism, the torque can be released in time during the steel truss jacking construction, and the uneven force on the steel strand 7 or improper strong pulling or pulling can be solved; the problem of the steel strand 7 being entangled can be solved, and the steel strand 7 can be automatically guided to be pulled and moved, thereby enhancing the construction efficiency.

[0045] Working principle: During the jacking construction of the steel truss, one end of the steel strand 7 is driven to be inserted into the first insertion hole 6 and the second insertion hole 9, and the electric telescopic rod 510 is controlled to extend to drive the pressure plug 511 to move into the second driving chamber 51, squeeze the hydraulic oil inside, increase the oil pressure, and then control multiple push plugs 54 to move outward at the same time through the oil pressure, drive the clamping rod 53 to move outward to squeeze the steel strand 7 to fix it firmly.

[0046] When the steel strand 7 is clamped, the hydraulic pump is used to inject oil so that the hydraulic oil is filled into the first driving chamber 41 through the first oil injection pipe 42. When the hydraulic oil inside the first driving chamber 41 increases, the moving plug 45 is pushed to move to one end, thereby controlling the telescopic tube 4 to extend outward, thereby pulling the steel strand 7 to move, and driving the steel structure beam to slide.

[0047] When the telescopic tube 4 moves forward to the maximum stroke, the electric telescopic rod 510 retracts and returns to its original position, thereby reducing the oil pressure inside the second drive chamber 51. Under the action of the spring 56, the clamping rod 53 is controlled to retract into the clamping block 5 to release the locking clamping state. At the same time, hydraulic oil is injected into the second oil filling pipe 43 to control the hydraulic oil inside the second drive chamber 51 to move in the opposite direction, thereby driving the moving plug 45 to move in the opposite direction, thereby driving the telescopic tube 4 to retract and return to its original position, thereby driving the clamping block 5 to the rear of the initial clamping of the steel strand 7. In the same way as the above steps, the steel strand 7 is clamped and pulled during the extension operation of the telescopic tube 4.

[0048] When the steel strand 7 is entangled due to the torque generated during the movement of the steel strand 7, the drive motor 84 is controlled to work, driving the gear shaft 85 to rotate, thereby driving the gear 86 to rotate, and then the gear 86 is rotated to quickly control the rotation of the ring gear 81, thereby quickly releasing the torque of the steel strand 7, so that it can be quickly adjusted to avoid damage caused by torque entanglement and pulling.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A steel structure support and guide device for steel truss girder jacking construction, comprising a mounting plate (1) for mounting and fixing, characterized in that: Guide rods (2) are fixedly mounted on the opposing surfaces of the two mounting plates (1); a plurality of guide rods (2) are evenly and equally spaced with the axis of the mounting plate (1) as the center of a circle; a driving tube (3) is fixedly mounted on the surfaces of the plurality of guide rods (2); a driving mechanism is provided on the inner wall of the driving tube (3); the driving mechanism comprises a telescopic tube (4); and the telescopic tube (4) realizes a telescopic operation of the telescopic tube (4) through the driving mechanism; One end of the telescopic tube (4) is provided with a clamping mechanism and an anti-twisting wire winding mechanism, respectively. The clamping mechanism comprises a clamping block (5), and the arc surface around the clamping block (5) is provided with first insertion holes (6). A plurality of the first insertion holes (6) are evenly and equally arranged with the axis of the clamping block (5) as the center of the circle. The inner wall of the first insertion hole (6) is slidably inserted with a steel strand (7), and the steel strand (7) is clamped or released by the clamping mechanism. A first driving cavity (41) is provided inside the driving tube (3), and the inner walls at both ends of the first driving cavity (41) are fixedly connected with a first oil injection pipe (42) and a second oil injection pipe (43), respectively. The inner wall of one end of the first oil injection pipe (42) and the inner wall of one end of the second oil injection pipe (43) are both fixedly connected with the oil outlet pipe of the oil pump. The anti-twisting wire winding mechanism comprises a collar (8), the arc surface of the collar (8) is rotatably connected to the inner wall of the telescopic tube (4) via a turntable bearing, a second insertion hole (9) is provided on the inner wall arc surface of the collar (8), the inner walls of a plurality of the second insertion holes (9) are respectively slidably plugged with the arc surface of the steel strand (7), and the collar (8) realizes the action of rotating to adjust and release the winding force through the anti-twisting wire winding mechanism; The inner wall of the collar (8) is fixedly mounted on the arc surface of the clamping block (5); a gear ring (81) is fixedly mounted on the outer arc surface of the collar (8); a conductive slip ring (82) is fixedly mounted on one side surface of the clamping block (5); and the conductive slip ring (82) is electrically connected to the electric telescopic rod (510) via an electric wire; A mounting groove (83) is provided at one end of the outer arc surface of the telescopic tube (4); a driving motor (84) is fixedly mounted on the inner wall of the mounting groove (83); a gear shaft (85) is fixedly mounted on the output shaft of the driving motor (84) via a coupling; a gear (86) is fixedly mounted on one end of the gear shaft (85); a tooth groove of the gear (86) meshes with a tooth groove of the gear ring (81).

2. The steel structure support and guide device for steel truss beam jacking construction according to claim 1 is characterized in that: A first sliding hole (44) is formed in the inner wall of one end of the first driving cavity (41); the inner walls around the first sliding hole (44) are slidably plugged with the inner wall of the telescopic tube (4) and the outer arc surface of the telescopic tube (4); a moving plug (45) is fixedly mounted on one end of the telescopic tube (4); the inner arc surface and the outer arc inner wall of the moving plug (45) are fixedly mounted with first sealing rings (46); the surfaces of the two first sealing rings (46) are pressed against the inner wall of the first driving cavity (41); a second sealing ring (47) is fixedly mounted on the inner wall of the first sliding hole (44); the arc surface of the second sealing ring (47) is pressed against the surface of the telescopic tube (4).

3. The steel structure support and guide device for steel truss beam jacking construction according to claim 1 is characterized in that: The inner walls of the plurality of first insertion holes (6) respectively correspond to the inner walls of the plurality of second insertion holes (9); a second driving cavity (51) is provided inside the clamping block (5); second sliding holes (52) are provided on the circular arc inner walls around the second driving cavity (51); one end of the plurality of second sliding holes (52) is respectively fixedly connected to the inner wall relative to the first insertion hole (6).

4. The steel structure support and guide device for steel truss beam jacking construction according to claim 3 is characterized in that: A clamping rod (53) is slidably inserted into the inner wall of the second sliding hole (52), one end of the clamping rod (53) is adapted to the relative arc surface of the steel strand (7), and one end of the clamping rod (53) is pressed against the relative arc surface of the steel strand (7), and hydraulic oil is arranged inside the second driving chamber (51).

5. The steel structure support and guide device for steel truss beam jacking construction according to claim 4 is characterized in that: A push plug (54) is fixedly mounted on one end of the clamping rod (53), a first sealing gasket (55) is fixedly mounted on the surrounding arc surfaces of the push plug (54), the surrounding surfaces of the first sealing gasket (55) are slidably plugged with the inner wall of the second driving cavity (51), a spring (56) is fixedly mounted on the side surface of the push plug (54) close to the second sliding hole (52), and one end of a plurality of the springs (56) are fixedly mounted on the inner wall opposite to the second driving cavity (51).

6. The steel structure support and guide device for steel truss beam jacking construction according to claim 3 is characterized in that: A power tube (57) is fixedly mounted at the center of one side surface of the clamping block (5), one end of the power tube (57) is fixedly connected to the opposite inner wall of the second driving chamber (51), and a refueling tube (58) is fixedly connected to the inner wall of one end of the power tube (57) close to the clamping tube, and a valve (59) is provided on the surface of the refueling tube (58).

7. The steel structure support and guide device for steel truss beam jacking construction according to claim 6, characterized in that: An electric telescopic rod (510) is fixedly mounted on an inner wall of one side of the power tube (57); a pressure plug (511) is fixedly mounted on the telescopic end of the electric telescopic rod (510); a second sealing gasket (512) is fixedly mounted on the inner wall of the pressure plug (511); and a surface of the second sealing gasket (512) is slidably plugged into the inner wall of the power tube (57).

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