A kind of space cable top support equipment for suspension bridge

Abstract

A suspension bridge space cable top support device relates to the technical field of suspension bridge construction. In order to solve the problem that the existing construction device for suspension bridges cannot accurately adjust the lateral position of the suspension bridge space cable structure through lateral top support after the catwalk is converted to a suspension (before the installation of the suspension cable), resulting in low installation accuracy of the suspension cable, and then causing the suspension cable to bend and the main beam to be bent and damaged by torsional force. The device can walk on the main cable, and the main cable is supported by lateral top support to achieve the designed spatial linear shape. The spatial cable linear shape is adjusted before the suspension cable is hung. The cable clamp construction does not require a reserved inclination angle, thereby improving the accuracy of the cable installation, and then avoiding the bending of the suspension cable and the bending damage of the main beam caused by torsional force. Compared with the existing space cable line shape adjustment equipment, the space cable line shape adjustment equipment provided by the present application is more targeted for the adjustment of each suspension point position, making the overall space cable construction more accurate and efficient. The present invention is suitable for the construction of suspension bridges.

Description

Technical Field

[0001] The invention relates to the technical field of suspension bridge construction, and in particular to a suspension bridge space cable top support device. Background Art

[0002] At present, suspension bridges have obvious advantages such as simple force structure and large span. The main cable, as the main component of the suspension bridge, plays an important role in transmitting the longitudinal load of the bridge to the main tower and anchor. Studies have shown that the use of a spatial cable structure is a means to improve the stiffness and wind resistance of the suspension bridge, and the spatial cable structure is more beautiful, making it the first choice for landmark projects. However, the main cable has a large deadweight, and the existing main cable lateral position adjustment often uses the stretching sling adjustment method, which is difficult to operate and difficult to ensure accuracy. At the same time, the problem of cable bending is inevitable during the installation of the sling.

[0003] In summary, the existing construction equipment for suspension bridges cannot accurately adjust the lateral position of the spatial cable structure of the suspension bridge through lateral top supports after the catwalk is converted to a suspension (or before the installation of the suspension cables), resulting in low accuracy in the installation of the suspension cables, and further causing bending of the suspension cables and bending damage to the main beam caused by torsional force. Summary of the invention

[0004] The present invention proposes a suspension bridge space cable top support device to solve the problem that the existing construction equipment for suspension bridges is unable to accurately adjust the lateral position of the suspension bridge space cable structure through lateral top support after the catwalk is converted to a suspension (or before the installation of the suspension cable), resulting in low accuracy in the installation of the suspension cable, and further causing bending of the suspension cable and bending damage to the main beam caused by torsional force.

[0005] A suspension bridge space cable top support device of the present invention comprises a walking mechanism 1, a cross bracing mechanism 2, two winches 3, a main beam truss 4 and two traction cables 5;

[0006] Two winches 3 are arranged opposite to each other, one of the winches 3 is connected to one end of the traveling mechanism 1 through a traction rope 5, and the other winch 3 is connected to the other end of the traveling mechanism 1 through another traction rope 5. A cross brace mechanism 2 is provided at the middle of the top of the traveling mechanism 1, and after the bottom end of the cross brace mechanism 2 passes through the traveling mechanism 1, the middle part of the cross brace mechanism 2 is hingedly connected to the top of the traveling mechanism 1, and a main beam truss 4 is provided at the top of the cross brace mechanism 2;

[0007] Furthermore, the walking mechanism 1 includes a housing 1-1, a load conversion jack 1-2, a hinge connection seat 1-4, a clamp 1-5 and a main cable roller 1-6;

[0008] The inside of the shell 1-1 is evenly provided with n load conversion jacks 1-2 along the length direction, where n is a positive integer. After the bottom end of each load conversion jack 1-2 passes through the lower surface of the shell 1-1, it is rotatably connected with the center hole of the main cable roller 1-6, and the axis of the load conversion jack 1-2 is perpendicular to the axis of the main cable roller 1-6. A clamp 1-5 is respectively provided at both ends of the lower surface of the shell 1-1, and a hinge connection seat 1-4 is respectively provided in the middle of both ends of the shell 1-1, and the hinge connection seat 1-4 is connected to one end of the traction rope 5. A through hole 1-3 is processed at the top of the middle of the front side of the shell 1-1;

[0009] Furthermore, the number n of the load conversion jacks 1-2 is 4≤n≤10;

[0010] Furthermore, the cross section of the housing 1-1 is U-shaped;

[0011] Furthermore, the cross bracing mechanism 2 includes an I-shaped platform 2-1, a vertical load-bearing roller 2-2, a longitudinal support rod 2-4 and a transverse clamp unit 2-5;

[0012] The top surfaces of the grooves on both sides of the I-shaped platform 2-1 are respectively processed with m horizontal support hydraulic jack reserved holes 2-3 along the length direction, where m is a positive integer. The bottom surfaces of the grooves on both sides of the I-shaped platform 2-1 are respectively provided with multiple vertical load-bearing rollers 2-2 along the length direction. A longitudinal support rod 2-4 is provided in the middle of the lower surface of the I-shaped platform 2-1, and a transverse hoop unit 2-5 is respectively provided on both sides of the bottom of the longitudinal support rod 2-4;

[0013] Furthermore, the top end of the longitudinal support rod 2-4 is welded and fixed to the middle of the lower surface of the I-shaped platform 2-1;

[0014] Furthermore, a hinge connection plate is provided on both sides of the bottom of the I-shaped platform 2-1, and a pair of hinge connection plates at the bottom of the I-shaped platform 2-1 are hingedly connected to the through hole 1-3 on the housing 1-1 of the walking mechanism 1 through a pin shaft;

[0015] Furthermore, the number m of the reserved holes 2-3 for the horizontal bracing hydraulic jack is 10≤m≤100;

[0016] Furthermore, the transverse hoop unit 2-5 includes a telescopic jack 2-5-1 and an annular hoop 2-5-2, the bottom end of the telescopic jack 2-5-1 is fixedly connected to the side of the longitudinal support rod 2-4, and the telescopic end of the telescopic jack 2-5-1 is connected to the annular hoop 2-5-2;

[0017] Furthermore, the main beam truss 4 includes a main beam truss platform 4-1, a cross brace track 4-2 and a cross brace hydraulic jack 4-3;

[0018] A cross brace track 4-2 is provided at both ends of the inner bottom surface of the main beam truss platform 4-1 along the length direction, and a plurality of cross brace hydraulic jacks 4-3 are evenly provided on the upper surface of each cross brace track 4-2 along the length direction;

[0019] Furthermore, a layer of protective net 4-4 is respectively provided on two sides of the main beam truss platform 4-1, and the lower surface of the main beam truss platform 4-1 is arranged in contact with the outer surface of the vertical bearing roller 2-2 on the I-shaped platform 2-1 in the cross bracing mechanism 2;

[0020] Furthermore, when in use, the traveling mechanism 1 is mounted on the main cable through the main cable rollers 1-6, and the main cable rollers 1-6 are in a waist drum shape, which can ensure that the main cable rollers 1-6 and the main cable will not slip. The traveling mechanism 1 has the main cable rollers 1-6, and at this time, the overall load of the cross bracing mechanism 2 is transferred to the main cable through the main cable rollers 1-6 on the traveling mechanism 1.

[0021] A pair of hinged connecting plates at the bottom of the I-shaped platform 2-1 are hingedly connected to the through holes 1-3 on the housing 1-1 of the traveling mechanism 1 through pins. The advantage of using pins is that an angle deviation can be formed between the vertical axis of the cross bracing mechanism 2 along the bridge direction and the vertical axis of the traveling mechanism 1 along the bridge direction, ensuring that the cross bracing mechanism 2 and the main beam truss 4 above it remain horizontal, so that the staff can operate on the horizontal truss platform and adapt to the construction at various positions along the main cable;

[0022] The walking mechanism 1 needs to cross obstacles such as slings and cable clamps during the main cable running process. In order to achieve this function, the bottom end of the load conversion jack 1-2 passes through the lower surface of the shell 1-1 and is rotatably connected to the center hole of the main cable roller 1-6. The two are connected by high-strength bolts; when encountering obstacles such as cable clamps, the front main cable roller 1-6 can be lifted by lifting the load conversion jack 1-2, and the lifting height is determined by the height of the obstacle. At this time, the weight of the cross-bracing mechanism 2 is borne by the remaining three main cable rollers 1-6, and the front main cable roller 1-6 is lowered after completing the crossing; similarly, the remaining main cable rollers 1-6 are subsequently lifted in turn, so that the cross-bracing mechanism 2 can achieve the obstacle crossing function; and the winches 3 on both sides provide continuous power to the walking mechanism 1 through the traction rope 5; when the walking mechanism 1 walks to the specified position, the main cable is tightened by the clamp 1-5 to prevent the cross-bracing mechanism 2 from sliding down. The clamp 1-5 is connected to the main body of the walking mechanism 1 by a pin shaft, so that the clamp 1-5 can adapt to the change of the angle of the main cable on the vertical plane, so that the clamp 1-5 can be installed smoothly; thereby completing the installation construction of the suspension bridge;

[0023] The suspension bridge space cable top support equipment of this structure adjusts the main cable sling position to the designed position before the sling construction, which can assist the sling construction process. At this time, the sling is installed vertically, avoiding the difficulty of the angle between the sling and the space cable; and unlike the existing cross bracing mechanism, the cross bracing mechanism of this structure can realize walking along the space cable, and the adjustment of the space position of each sling point is more targeted, making the construction more accurate, and realizing the precise adjustment of the lateral position of the suspension bridge space cable structure through the cross bracing after the catwalk is changed (or before the sling is installed). At the same time, this device can meet the two different construction processes of "beam first and then cable" and "cable first and then beam" when in use, thereby improving the accuracy of the sling installation, and then avoiding the bending of the sling and the bending damage of the main beam caused by torsional force.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention overcomes the shortcomings of the prior art. The spatial cable top-supporting equipment of the suspension bridge of this structure adjusts the main cable sling position to the designed position before the sling construction, which can assist the sling construction process. At this time, the sling is installed vertically, avoiding the problem of difficult construction due to the angle between the sling and the spatial cable. And unlike the existing cross-bracing mechanism, the cross-bracing mechanism of this structure can realize walking along the spatial cable, and the spatial position adjustment of each sling point is more targeted, making the construction more accurate, and realizing the precise adjustment of the lateral position of the suspension bridge spatial cable structure through the cross-bracing after the catwalk is changed to a sling (or before the sling is installed). At the same time, this device can meet two different construction processes of "beam first, then cable" and "cable first, then beam" when in use;

[0026] It is also possible to walk on the main cable, and to horizontally support the main cable to achieve the designed spatial linear shape. The spatial cable shape is adjusted before the sling is hung. The sling clamp construction does not require a reserved inclination angle, thereby improving the accuracy of the sling installation, thereby avoiding the bending of the sling and the bending damage of the main beam caused by torsional force. Compared with the existing spatial cable shape adjustment equipment, the spatial cable shape adjustment equipment provided by the present application is more targeted for the adjustment of each suspension point position, making the overall spatial cable construction more accurate and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a front view of a suspension bridge space cable top support device according to the present invention;

[0028] Figure 2 It is a front view of a walking mechanism in a suspension bridge space cable top support device according to the present invention;

[0029] Figure 3 It is a top view of a walking mechanism in a suspension bridge space cable top support device according to the present invention;

[0030] Figure 4It is a side view of a walking mechanism in a suspension bridge space cable top support device according to the present invention;

[0031] Figure 5 It is a front view of a transverse bracing mechanism in a spatial cable top bracing device for a suspension bridge according to the present invention;

[0032] Figure 6 It is a side view of a cross bracing mechanism in a suspension bridge space cable top bracing device according to the present invention;

[0033] Figure 7 It is a top view of a cross bracing mechanism in a suspension bridge space cable top bracing device according to the present invention;

[0034] Figure 8 It is a front view of a main beam truss in a suspension bridge space cable top support device described in the present invention;

[0035] Fig. 9 It is a top view of a main beam truss in a suspension bridge space cable top support device described in the present invention;

[0036] Fig.10 It is a side view of a main beam truss in a suspension bridge space cable top support device described in the present invention. DETAILED DESCRIPTION

[0037] Specific implementation method 1: Combination Figure 1 The present embodiment is described. The spatial cable top support device of a suspension bridge described in the present embodiment comprises a walking mechanism 1, a cross bracing mechanism 2, two winches 3, a main beam truss 4 and two traction cables 5;

[0038] Two winches 3 are arranged opposite to each other, one of the winches 3 is connected to one end of the traveling mechanism 1 through a traction rope 5, and the other winch 3 is connected to the other end of the traveling mechanism 1 through another traction rope 5. A cross brace mechanism 2 is provided at the middle of the top of the traveling mechanism 1, and after the bottom end of the cross brace mechanism 2 passes through the traveling mechanism 1, the middle part of the cross brace mechanism 2 is hingedly connected to the top of the traveling mechanism 1, and a main beam truss 4 is provided at the top of the cross brace mechanism 2;

[0039] In this specific embodiment, when in use, the traveling mechanism 1 is mounted on the main cable through the main cable rollers 1-6, and the main cable rollers 1-6 are in a waist drum shape, which can ensure that the main cable rollers 1-6 and the main cable will not slip. The traveling mechanism 1 has main cable rollers 1-6, and at this time, the overall load of the cross bracing mechanism 2 is transferred to the main cable through the main cable rollers 1-6 on the traveling mechanism 1.

[0040] A pair of hinged connecting plates at the bottom of the I-shaped platform 2-1 are hingedly connected to the through holes 1-3 on the housing 1-1 of the traveling mechanism 1 through pins. The advantage of using pins is that an angle deviation can be formed between the vertical axis of the cross bracing mechanism 2 along the bridge direction and the vertical axis of the traveling mechanism 1 along the bridge direction, ensuring that the cross bracing mechanism 2 and the main beam truss 4 above it remain horizontal, so that the staff can operate on the horizontal truss platform and adapt to the construction at various positions along the main cable;

[0041] The walking mechanism 1 needs to cross obstacles such as slings and cable clamps during the main cable running process. In order to achieve this function, the bottom end of the load conversion jack 1-2 passes through the lower surface of the shell 1-1 and is rotatably connected to the center hole of the main cable roller 1-6. The two are connected by high-strength bolts; when encountering obstacles such as cable clamps, the front main cable roller 1-6 can be lifted by lifting the load conversion jack 1-2, and the lifting height is determined by the height of the obstacle. At this time, the weight of the cross-bracing mechanism 2 is borne by the remaining three main cable rollers 1-6, and the front main cable roller 1-6 is lowered after completing the crossing; similarly, the remaining main cable rollers 1-6 are subsequently lifted in turn, so that the cross-bracing mechanism 2 can achieve the obstacle crossing function; and the winches 3 on both sides provide continuous power to the walking mechanism 1 through the traction rope 5; when the walking mechanism 1 walks to the specified position, the main cable is tightened by the clamp 1-5 to prevent the cross-bracing mechanism 2 from sliding down. The clamp 1-5 is connected to the main body of the walking mechanism 1 by a pin shaft, so that the clamp 1-5 can adapt to the change of the angle of the main cable on the vertical plane, so that the clamp 1-5 can be installed smoothly; thereby completing the installation construction of the suspension bridge;

[0042] The suspension bridge space cable top support equipment of this structure adjusts the main cable sling position to the designed position before the sling construction, which can assist the sling construction process. At this time, the sling is installed vertically, avoiding the difficulty of the angle between the sling and the space cable; and unlike the existing cross bracing mechanism, the cross bracing mechanism of this structure can realize walking along the space cable, and the adjustment of the space position of each sling point is more targeted, making the construction more accurate, and realizing the precise adjustment of the lateral position of the suspension bridge space cable structure through the cross bracing after the catwalk is changed (or before the sling is installed). At the same time, this device can meet the two different construction processes of "beam first and then cable" and "cable first and then beam" when in use, thereby improving the accuracy of the sling installation, and then avoiding the bending of the sling and the bending damage of the main beam caused by torsional force.

[0043] Specific implementation method 2: Combination Figures 2 to 4 This embodiment is described. This embodiment is a further limitation of the space cable top support device described in the specific embodiment 1. In this embodiment, a suspension bridge space cable top support device is described. The walking mechanism 1 includes a housing 1-1, a load conversion jack 1-2, a hinged connection seat 1-4, a clamp 1-5 and a main cable roller 1-6;

[0044] The inside of the shell 1-1 is evenly provided with n load conversion jacks 1-2 along the length direction, where n is a positive integer. After the bottom end of each load conversion jack 1-2 passes through the lower surface of the shell 1-1, it is rotatably connected to the center hole of the main cable roller 1-6, and the axis of the load conversion jack 1-2 is perpendicular to the axis of the main cable roller 1-6. A clamp 1-5 is respectively provided at both ends of the lower surface of the shell 1-1, and a hinge connection seat 1-4 is respectively provided in the middle of both ends of the shell 1-1, and the hinge connection seat 1-4 is connected to one end of the traction rope 5. A through hole 1-3 is processed at the top of the middle of the front side of the shell 1-1.

[0045] Specific implementation method three: Combination Figures 2 to 4 This embodiment is described. This embodiment is a further limitation of the space cable top support device described in the second embodiment. In the space cable top support device for a suspension bridge described in this embodiment, the number n of the load conversion jacks 1-2 is 4≤n≤10;

[0046] In this specific implementation manner, the number n of the load transfer jacks 1-2 is 4≤n≤10, and the number of the load transfer jacks 1-2 can be determined according to the actual construction situation.

[0047] Specific implementation method four: Combination Figures 2 to 4 This embodiment is described as a further limitation of the space cable top support device described in the second specific embodiment. In this embodiment, a space cable top support device for a suspension bridge is described, and the cross-section of the shell 1-1 is U-shaped.

[0048] Specific implementation method five: Combination Figures 5 to 7 This embodiment is described. This embodiment is a further limitation of the space cable top support device described in the second embodiment. In the space cable top support device for a suspension bridge described in this embodiment, the horizontal support mechanism 2 includes an I-shaped platform 2-1, a vertical load-bearing roller 2-2, a longitudinal support rod 2-4 and a horizontal clamp unit 2-5;

[0049] The top surfaces of the grooves on both sides of the I-shaped platform 2-1 are respectively processed with m horizontal support hydraulic jack reserved holes 2-3 along the length direction, where m is a positive integer. The bottom surfaces of the grooves on both sides of the I-shaped platform 2-1 are respectively provided with multiple vertical load-bearing rollers 2-2 along the length direction. A longitudinal support rod 2-4 is provided in the middle of the lower surface of the I-shaped platform 2-1, and a transverse hoop unit 2-5 is respectively provided on both sides of the bottom of the longitudinal support rod 2-4;

[0050] In this specific embodiment, the bottom surfaces of the grooves on both sides of the I-shaped platform 2-1 are respectively provided with a plurality of vertical bearing rollers 2-2 along the length direction, and the vertical bearing rollers 2-2 are in contact with the bottom plate of the main beam truss 4. The weight of the main beam truss 4 is transferred to the cross bracing mechanism 2 through the vertical bearing rollers 2-2, and then to the walking mechanism 1. The use of the vertical bearing rollers 2-2 can reduce the friction between the cross bracing mechanism 2 and the bottom plate of the main beam truss 4 during the cross bracing process;

[0051] The top surfaces of the grooves on both sides of the I-shaped platform 2-1 are respectively processed with multiple cross-bracing hydraulic jack reserved holes 2-3 along the length direction; during the cross-bracing process, the top ends of the cross-bracing hydraulic jacks 4-3 on the main beam truss 4 pass through the cross-bracing hydraulic jack reserved holes 2-3 on the I-shaped platform 2-1, thereby completing the lateral movement of the cross-bracing mechanism 2 through the cross-bracing hydraulic jacks 4-3.

[0052] Specific implementation method six: Combination Figures 5 to 7 This embodiment is described. This embodiment is a further limitation of the space cable top support device described in the specific embodiment 5. In the space cable top support device for a suspension bridge described in this embodiment, the top end of the longitudinal support rod 2-4 is welded and fixed to the middle part of the lower surface of the I-shaped platform 2-1;

[0053] In this specific embodiment, the top end of the longitudinal support rod 2-4 is welded and fixed to the middle part of the lower surface of the I-shaped platform 2-1, so as to improve the stability of the device when in use.

[0054] Specific implementation method seven: Combination Figures 5 to 7 To explain this embodiment, this embodiment is a further limitation of the space cable top support device described in specific embodiment six. In this embodiment, a suspension bridge space cable top support device is described, and a hinged connecting plate is respectively provided on both sides of the bottom of the I-shaped platform 2-1, and a pair of hinged connecting plates at the bottom of the I-shaped platform 2-1 are hingedly connected to the through hole 1-3 on the shell 1-1 of the walking mechanism 1 through a pin shaft.

[0055] Specific implementation method eight: Combination Figures 5 to 7 This embodiment is described. This embodiment is a further limitation of the space cable top support equipment described in the specific embodiment five. In the space cable top support equipment for a suspension bridge described in this embodiment, the number m of the reserved holes 2-3 for the cross bracing hydraulic jacks is 10≤m≤100.

[0056] Specific implementation method nine: Combination Figures 5 to 7This embodiment is described. This embodiment is a further limitation of the space cable top support device described in the specific embodiment 5. In the space cable top support device for a suspension bridge described in this embodiment, the transverse clamp unit 2-5 includes a telescopic jack 2-5-1 and an annular clamp 2-5-2. The bottom end of the telescopic jack 2-5-1 is fixedly connected to the side of the longitudinal support rod 2-4, and the telescopic end of the telescopic jack 2-5-1 is connected to the annular clamp 2-5-2.

[0057] In this specific embodiment, the bottom end of the telescopic jack 2-5-1 is fixedly connected to the side of the longitudinal support rod 2-4, the telescopic end of the telescopic jack 2-5-1 is connected to the annular hoop 2-5-2, and the annular hoop 2-5-2 is connected to the telescopic end of the telescopic jack 2-5-1 through a ball joint connector, which can realize rotation in all directions to adapt to changes in the spatial position angle of the space cable. During the cross-bracing process, the transverse hoop unit 2-5 tightens the main cable to prevent the main cable from slipping, and transmits the transverse force of the cross-bracing mechanism 2 to the main cable.

[0058] Specific implementation method ten: Combination Figures 8 to 10 This embodiment is described. This embodiment is a further limitation of the space cable top support device described in the specific embodiment 5. In this embodiment, a suspension bridge space cable top support device is described. The main beam truss 4 includes a main beam truss platform 4-1, a cross brace track 4-2 and a cross brace hydraulic jack 4-3;

[0059] A cross brace track 4-2 is respectively provided at both ends of the inner bottom surface of the main beam truss platform 4-1 along the length direction, and a plurality of cross brace hydraulic jacks 4-3 are evenly provided on the upper surface of each cross brace track 4-2 along the length direction.

[0060] Specific implementation method eleven: Combination Figures 8 to 10 To explain this embodiment, this embodiment is a further limitation of the space cable top-supporting device described in the specific embodiment ten. In the space cable top-supporting device for a suspension bridge described in this embodiment, a layer of protective net 4-4 is respectively provided on two sides of the main beam truss platform 4-1, and the lower surface of the main beam truss platform 4-1 is in contact with the outer surface of the vertical load-bearing roller 2-2 on the I-shaped platform 2-1 in the cross-bracing mechanism 2.

[0061] How it works

[0062] When in use, the traveling mechanism 1 is mounted on the main cable through the main cable rollers 1-6. The main cable rollers 1-6 are in a waist drum shape, which can ensure that the main cable rollers 1-6 and the main cable will not slip. The traveling mechanism 1 has main cable rollers 1-6. At this time, the overall load of the cross bracing mechanism 2 is transferred to the main cable through the main cable rollers 1-6 on the traveling mechanism 1.

[0063] A pair of hinged connecting plates at the bottom of the I-shaped platform 2-1 are hingedly connected to the through holes 1-3 on the housing 1-1 of the traveling mechanism 1 through pins. The advantage of using pins is that an angle deviation can be formed between the vertical axis of the cross bracing mechanism 2 along the bridge direction and the vertical axis of the traveling mechanism 1 along the bridge direction, ensuring that the cross bracing mechanism 2 and the main beam truss 4 above it remain horizontal, so that the staff can operate on the horizontal truss platform and adapt to the construction at various positions along the main cable;

[0064] The walking mechanism 1 needs to cross obstacles such as slings and cable clamps during the main cable running process. In order to achieve this function, the bottom end of the load conversion jack 1-2 passes through the lower surface of the shell 1-1 and is rotatably connected to the center hole of the main cable roller 1-6. The two are connected by high-strength bolts; when encountering obstacles such as cable clamps, the front main cable roller 1-6 can be lifted by lifting the load conversion jack 1-2, and the lifting height is determined by the height of the obstacle. At this time, the weight of the cross-bracing mechanism 2 is borne by the remaining three main cable rollers 1-6, and the front main cable roller 1-6 is lowered after completing the crossing; similarly, the remaining main cable rollers 1-6 are subsequently lifted in turn, so that the cross-bracing mechanism 2 can achieve the obstacle crossing function; and the winches 3 on both sides provide continuous power to the walking mechanism 1 through the traction rope 5; when the walking mechanism 1 walks to the specified position, the main cable is tightened by the clamp 1-5 to prevent the cross-bracing mechanism 2 from sliding down. The clamp 1-5 is connected to the main body of the walking mechanism 1 by a pin shaft, so that the clamp 1-5 can adapt to the change of the angle of the main cable on the vertical plane, so that the clamp 1-5 can be installed smoothly; thereby completing the installation construction of the suspension bridge;

[0065] The suspension bridge space cable top support equipment of this structure adjusts the main cable sling position to the designed position before the sling construction, which can assist the sling construction process. At this time, the sling is installed vertically, avoiding the difficulty of the angle between the sling and the space cable; and unlike the existing cross bracing mechanism, the cross bracing mechanism of this structure can realize walking along the space cable, and the adjustment of the space position of each sling point is more targeted, making the construction more accurate, and realizing the precise adjustment of the lateral position of the suspension bridge space cable structure through the cross bracing after the catwalk is changed (or before the sling is installed). At the same time, this device can meet the two different construction processes of "beam first and then cable" and "cable first and then beam" when in use, thereby improving the accuracy of the sling installation, and then avoiding the bending of the sling and the bending damage of the main beam caused by torsional force.

Claims

1. A suspension bridge space cable top support device, Features: It comprises a walking mechanism (1), a cross bracing mechanism (2), two winches (3), a main beam truss (4) and two traction ropes (5); Two winches (3) are arranged opposite to each other, one of the winches (3) is connected to one end of the traveling mechanism (1) via a traction rope (5), and the other winch (3) is connected to the other end of the traveling mechanism (1) via another traction rope (5); a cross bracing mechanism (2) is provided at the middle of the top end of the traveling mechanism (1); after the bottom end of the cross bracing mechanism (2) passes through the traveling mechanism (1), the middle of the cross bracing mechanism (2) is hingedly connected to the top end of the traveling mechanism (1); and a main beam truss (4) is provided at the top end of the cross bracing mechanism (2); The walking mechanism (1) comprises a housing (1-1), a load conversion jack (1-2), a hinged connection seat (1-4), a hoop (1-5) and a main cable roller (1-6); The shell (1-1) is provided with n load conversion jacks (1-2) uniformly along the length direction, where n is a positive integer. After the bottom end of each load conversion jack (1-2) passes through the lower surface of the shell (1-1), it is rotatably connected to the center hole of the main cable roller (1-6), and the axis of the load conversion jack (1-2) is arranged perpendicular to the axis of the main cable roller (1-6). A clamp (1-5) is provided at both ends of the lower surface of the shell (1-1), and a hinge connection seat (1-4) is provided in the middle of both ends of the shell (1-1), and the hinge connection seat (1-4) is connected to one end of the traction rope (5). A through hole (1-3) is processed at the top of the middle of the front side of the shell (1-1). The number n of the load conversion jacks (1-2) is 4≤n≤10. The cross section of the shell (1-1) is U-shaped. The cross bracing mechanism (2) comprises an I-shaped platform (2-1), vertical load-bearing rollers (2-2), longitudinal support rods (2-4) and a transverse hoop unit (2-5); The top surfaces of the grooves on both sides of the I-shaped platform (2-1) are respectively processed with m cross-bracing hydraulic jack reserved holes (2-3) along the length direction, where m is a positive integer; the bottom surfaces of the grooves on both sides of the I-shaped platform (2-1) are respectively provided with a plurality of vertical load-bearing rollers (2-2) along the length direction; a longitudinal support rod (2-4) is provided in the middle of the lower surface of the I-shaped platform (2-1); and a transverse clamp unit (2-5) is respectively provided on both sides of the bottom of the longitudinal support rod (2-4).

2. A suspension bridge space cable top support device according to claim 1, Features: The top end of the longitudinal support rod (2-4) is welded and fixed to the middle part of the lower surface of the I-shaped platform (2-1).

3. A suspension bridge space cable top support device according to claim 2, Features: A hinged connection plate is provided on both sides of the bottom of the I-shaped platform (2-1), and a pair of hinged connection plates at the bottom of the I-shaped platform (2-1) are hingedly connected to through holes (1-3) on the housing (1-1) of the walking mechanism (1) via pins.

4. A suspension bridge space cable top support device according to claim 1, Features: The number m of the reserved holes (2-3) for the horizontal support hydraulic jacks is 10≤m≤100.

5. The suspension bridge space cable top support device according to claim 1, Features: The transverse hoop unit (2-5) comprises a telescopic jack (2-5-1) and an annular hoop (2-5-2), the bottom end of the telescopic jack (2-5-1) is fixedly connected to the side of the longitudinal support rod (2-4), and the telescopic end of the telescopic jack (2-5-1) is connected to the annular hoop (2-5-2).

6. The suspension bridge space cable top support device according to claim 1, Features: The main beam truss (4) comprises a main beam truss platform (4-1), a cross brace track (4-2) and a cross brace hydraulic jack (4-3); A cross brace track (4-2) is respectively provided at both ends of the inner bottom surface of the main beam truss platform (4-1) along the length direction, and a plurality of cross brace hydraulic jacks (4-3) are evenly provided on the upper surface of each cross brace track (4-2) along the length direction.

7. A suspension bridge space cable top support device according to claim 6, Features: A layer of protective net (4-4) is respectively provided on two side surfaces of the main beam truss platform (4-1), and the lower surface of the main beam truss platform (4-1) is arranged in contact with the outer surface of the vertical bearing roller (2-2) on the I-shaped platform (2-1) in the cross bracing mechanism (2).

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