Suspension bridge cable type heavy load lifting device

Abstract

The application discloses a suspension bridge cable type heavy load lifting device and belongs to the technical field of bridge construction. The whole device is moved along the direction of the steel cable by the crown block, the load bearing rod is moved upward, and the load bearing rod is fixed on the cable clamp on the steel cable. The lifting jack is powered by the pump station to realize the clamping and lifting of the steel rope on the rope cylinder. The load bearing rod arranged in the vertical sliding mode can be moved upward at the suspension position and connected with the cable clamp. Compared with the lifting jack arranged in the fixed mode, the suspension device separates the load bearing rod from the remaining device. During the lifting process, only the load bearing rod and the steel rope are suspended on the steel cable to bear the vertical force, and the remaining frame body is not stressed, so that the structure damage caused by the force distribution of the suspension to the remaining structure is avoided. The load bearing rod is moved vertically, the load bearing rod is moved downward, the catwalk is avoided, the load bearing rod is connected with the steel cable by moving the load bearing rod upward when reaching the suspension position, the interference between the device and the catwalk structure is avoided, and the efficiency of the suspension work is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of bridge construction, and particularly relates to a cable type heavy load lifting device for suspension bridge. BACKGROUND

[0002] In the construction of a bridge, a cable type lifting device is mainly used for the suspension and installation of a main girder section. The device is arranged along a completed bridge cable and suspends the main girder section vertically through the force of the cable.

[0003] The lifting device in the prior art is generally a beam body structure, and both ends of the device are directly arranged on two steel cables extending in the same direction. The device is mainly subjected to the force of the steel cable, and is prone to deformation of the frame body and torsion of the steel cable during the suspension process due to the influence of the suspended weight. In addition, the lifting device moving along the steel cable needs to pass through the cable clamp on the steel cable during the movement, and therefore a stage type moving structure needs to be designed, resulting in a complex structure and slow movement of the device. SUMMARY

[0004] Therefore, the present application aims to provide a cable type heavy load lifting device for suspension bridge, which supports and provides movement for the lifting frame body through an additional cable, separates the device and the lifting structure during the lifting process, and avoids the influence of the lifting force on the frame body.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] The present application comprises a cable arranged along the extension direction of the bridge cable, the cable being arranged above the bridge cable, a headstock being arranged on the cable and moving thereon, an electric hoist being connected to the bottom end of the headstock, a suspension beam being arranged below the electric hoist, two C-shaped frames being horizontally arranged at both ends of the suspension beam, the C-shaped frames being downwardly curved and having openings facing the inner side of the bridge and surrounding the outer side of the catwalk of the bridge, the two C-shaped frames being fixedly connected through a base frame, a pump station and a rope drum being fixedly arranged on the base frame, the rope drum being wound with a steel rope, a vertical opening being formed in the base frame, a load bearing rod being vertically arranged in the opening, the upper end of the load bearing rod being connected to the cable clamp on the bridge cable, a lifting jack being fixedly arranged at the lower end of the load bearing rod, the steel rope in the rope drum passing through the lifting jack and extending downward, and the pump station being connected to the lifting jack through a hose.

[0007] Further, the distal ends of the upper edges of the two C-shaped frames are connected through an upper beam, the horizontal lifting jack is connected between the side surface of the suspension beam and the upper beam, the pump station is connected to the horizontal lifting jack through a hose, a horizontal connecting pin is arranged at the upper end of the load bearing rod, the connecting pin is inserted into the perforation at the lower side of the cable clamp as the C-shaped frame translates, and a threaded cylinder for locking the load bearing rod is threadedly connected to the distal end of the connecting pin.

[0008] Further, the C-shaped frame is further provided with a suspension, and an auxiliary lifting roller is rotationally arranged on the suspension, the auxiliary lifting roller is located beside the bearing rod, the auxiliary lifting roller is located above the lifting jack, and the steel rope is wound around the auxiliary lifting roller from top to bottom and connected with the lifting jack.

[0009] Further, the bearing rod is provided with two connecting columns on the side, the connecting columns are provided with stop heads at the ends, two vertical columns are vertically arranged on the base frame, and each of the two vertical columns is connected with a groove rail through a plurality of springs, and the stop heads are embedded and slidably arranged in the two groove rails.

[0010] Further, a transverse adjusting system is connected between the two head sheaves, the transverse adjusting system comprises connecting rods fixed on the side of the head sheaves, the connecting rods are provided with perforations at the ends, and the system further comprises a connecting rope, the connecting rope is provided with perforations at the two ends and is wound around the connecting rods through the perforations, and the connecting rope is fixed on the body of the connecting rope through a plurality of buckles.

[0011] Further, the two steel ropes are vertically extended downward, and the ends of the steel ropes are provided with hooks for suspending the main beam section.

[0012] Further, the catwalk walking surface is provided with a through hole for the bearing rod to pass through, and the through hole is located directly below the cable clamp.

[0013] The beneficial effects of the present application are that:

[0014] The present application moves the whole device along the direction of the steel cable through the head sheave, when the main beam section is suspended, the whole device is moved to the suspension position through the head sheave, the bearing rod is moved upward and fixed on the cable clamp on the steel cable, the lifting jack on the bearing rod is powered through the pump station, and the clamping and lifting of the steel rope on the rope drum are realized; through the vertically sliding bearing rod, the main beam section is moved upward and connected with the cable clamp at the suspension position, compared with the fixed lifting jack, the suspension device separates the bearing rod from the remaining device, only the bearing rod and the steel rope are suspended on the steel cable and bear vertical force in the hoisting process, the remaining frame body does not bear force, the structure damage caused by the force distribution of the suspension to the remaining structure is avoided, the bearing rod is moved vertically, the bearing rod is moved downward, the whole device can be directly moved away from the catwalk, and when the device reaches the suspension position, the bearing rod is connected with the steel cable by moving the bearing rod upward, the interference between the device and the catwalk structure is avoided, and the efficiency of the suspension work is improved.

[0015] Other advantages, objects, and features of the present application will be apparent to those skilled in the art from the following specification, and it is intended to cover any alternatives, modifications, or equivalents, within the scope of the present application. The objects and other advantages of the present application can be achieved and obtained by the following specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the purpose, technical solutions and beneficial effects of the present invention more clear, the present invention provides the following drawings for illustration:

[0017] Figure 1 This is an overall schematic diagram of a cable-mounted hoisting device according to an embodiment of the present invention;

[0018] Figure 2 This is a front view of a cable-mounted hoisting device according to an embodiment of the present invention;

[0019] Figure 3 for Figure 2 A magnified schematic diagram of point A;

[0020] Figure 4 for Figure 3 C-direction view;

[0021] Figure 5 Schematic diagram of the matching between the groove rail and the stopper according to an embodiment of the present invention;

[0022] Figure 6 for Figure 2 A sectional view of the part;

[0023] Figure 7 for Figure 2 An enlarged schematic diagram of point B;

[0024] The markings in the accompanying drawings are as follows: 11, steel cable; 12, catwalk; 121, through hole; 13, cable clamp; 2, overhead crane; 3, electric hoist; 4, suspension beam; 5, C-shaped frame; 51, base frame; 511, opening; 52, upper beam; 53, horizontal jack; 54, suspension; 55, auxiliary lifting roller; 56, column; 57, spring; 58, groove rail; 6, lateral adjustment system; 61, connecting rod; 611, through hole; 62, connecting rope; 63, lock; 7, pump station; 8, rope drum; 81, steel rope; 9, load-bearing rod; 91, lifting jack; 92, connecting pin; 93, threaded cylinder; 94, connecting column; 95, stopper. DETAILED DESCRIPTION

[0025] like Figure 1 、 Figure 2 and Figure 6As shown, the present application discloses a kind of cable suspension bridge cable type heavy load lifting device, including the cable of being set along the extension direction of bridge cable 11, cable is located above bridge cable 11, cable is movably provided with headstock 2, the bottom end of headstock 2 is connected with a electric hoist 3, the lower side of electric hoist 3 is hung with a suspension beam 4, the two ends of suspension beam 4 are respectively horizontally slid C-shaped frame 5, C-shaped frame 5 extends downward and bends, between two C-shaped frames 5, it is connected by several connecting rods, the opening 511 of C-shaped frame 5 is towards bridge inner side and surrounds outside bridge catwalk 12, between the two lower edges of C-shaped frame 5, it is fixedly connected by bottom bracket 51, pump station 7 and rope drum 8 with steel rope 81 are fixed on bottom bracket 51, vertical opening 511 is further provided on bottom bracket 51, load bearing rod 9 is slid vertically on opening 511, the upper end of load bearing rod 9 is connected with cable clamp 13 on bridge cable 11, and the lower end is fixed with lifting jack 91, steel rope 81 in rope drum 8 passes through lifting jack 91 and extends downward, pump station 7 is connected with lifting jack 91 by hose.

[0026] This device, by headstock 2 drive the whole device moves along the direction of cable 11, when suspending girder section, by headstock 2 drive the whole device moves to suspension position, by moving up load bearing rod 9, and load bearing rod 9 is fixed on cable clamp 13 on cable 11, lifting jack 91 on load bearing rod 9 is energized by pump station 7, realizes the clamping and lifting of steel rope 81 on rope drum 8;This structure, by vertically sliding load bearing rod 9, can move up in suspension position and be connected with cable clamp 13, compared with fixedly arranged lifting jack 91, this suspension device separates load bearing rod 9 from the rest of the device, in hoisting process, only load bearing rod 9 and steel rope 81 are suspended on cable 11 and bear vertical force, the rest of the frame will not bear force, avoid the structure damage caused by force distribution to the rest of the structure when suspending, and by moving load bearing rod 9 vertically, after moving down load bearing rod 9, catwalk 12 can be avoided and the whole device can be directly moved, and when reaching suspension position, load bearing rod 9 is connected with cable 11 by moving up load bearing rod 9, avoid the interference between device and catwalk 12 structure, improve the efficiency of suspension work.

[0027] Further, as shown in the scheme, Figure 6 Two C-shaped frames 5 are connected by an upper beam 52 at the end of the upper edge, horizontal jack 53 is connected between the side of suspension beam 4 and upper beam 52, pump station 7 is connected with horizontal jack 53 by hose, horizontal connecting pin 92 is arranged at the upper end of load bearing rod 9, connecting pin 92 is inserted into the hole 611 at the lower side of cable clamp 13 when C-shaped frame 5 translates, and threaded cylinder 93 is threadedly connected at the end of connecting pin 92 to lock load bearing rod 9.

[0028] In this structure, the C-shaped frame 5 moves horizontally on the suspension beam 4 by the horizontal jack 53 to adjust the lateral position of the C-shaped frame 5, and the connecting pin 92 of the load rod 9 is inserted into the hole 611 below the cable clamp 13 by the force of the horizontal jack 53, and is fixed by the threaded cylinder 93. This structure is mainly used to assist the connection of the load rod 9 and the cable clamp 13.

[0029] In a further scheme, as shown in Figure 4 and Figure 6 , the C-shaped frame 5 is also provided with a suspension frame 54, and an auxiliary lifting roller 55 is rotatably arranged on the suspension frame 54. The auxiliary lifting roller 55 is located beside the load rod 9 and above the lifting jack 91. The steel wire 81 is wound around the auxiliary lifting roller 55 from the top to the bottom and connected to the lifting jack 91.

[0030] This structure is used to assist the up and down movement of the load rod 9. Before the load rod 9 is connected with the cable clamp 13, the steel wire 81 pulls the lifting jack 91 to move the load rod 9 up and down by rotating the rope cylinder 8, which assists the connection of the load rod 9 and the cable clamp 13. After the cable clamp 13 is connected with the load rod 9, the load rod 9 bears the suspension structure of the main beam section, and the remaining structure is separated from the load rod 9, avoiding the influence of the force of the load rod 9 on the remaining frame.

[0031] In a further scheme, as shown in Figure 4 and Figure 5 , the load rod 9 is provided with two connecting columns 94 on the side, and the end of the connecting column 94 is provided with a stop head 95. Two vertical columns 56 are vertically arranged on the base frame 51, and each of the two vertical columns 56 is connected to a groove rail 58 through a plurality of springs 57. The stop head 95 is embedded and slidably arranged in the two groove rails 58 on both sides.

[0032] By arranging the elastic groove rail 58 structure, the vertical movement of the load rod 9 is soft limited, avoiding excessive shaking and deflection of the load rod 9. When the load rod 9 moves up to the position of the cable clamp 13, the load rod 9 can be moved a certain distance by manpower to ensure the precise butt joint of the load rod 9 and the cable clamp 13. This structure not only ensures the moving direction of the load rod 9, but also avoids the hard connection of the load rod 9 and the remaining frame, avoiding the influence of the force of the load rod 9 on the remaining frame during the suspension work.

[0033] In a further scheme, as shown in Figure 2 and Figure 7As shown, two said trolley 2 is connected with lateral adjustment system 6, the lateral adjustment system 6 includes fixed in the side of the trolley 2 connecting rod 61, the connecting rod 61 end is provided with a hole 611, also includes a rope 62, the rope 62 both ends are respectively through two said hole 611, the rope 62 end through the hole 611 and back around, the rope 62 is fixed on the body of the rope 62 by several buckles 63.

[0034] By setting the adjustable length of the lateral adjustment system 6, the relative distance of two C-shaped frame 5 structure is controlled, the lateral distance of C-shaped frame 5 is adjusted, C-shaped frame 5 is located in the correct suspension position, and the synchronous movement of two C-shaped frame 5 is also ensured, avoiding excessive shaking of C-shaped frame 5.

[0035] In a further aspect, the two said steel rope 81 vertically downward, the steel rope 81 end is provided with a suspension girder segment hook.

[0036] In a further aspect, the catwalk 12 walking surface is provided with a through hole 121 for the bearing rod 9, the through hole 121 is located directly below the cable clamp 13.

[0037] Finally, it is pointed out that the above preferred embodiments are only used to illustrate the technical solutions of the present application and are not limited, although the above preferred embodiments have been described in detail, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present application.

Claims

1. A catenary bridge cable type heavy load hoisting device, characterized by: The utility model provides a bridge cable lifting device, including the cable that sets up along the direction of bridge cable extension, the cable is located the top of bridge cable, the cable is removed and sets up the trolley, the bottom end of trolley is connected with an electric hoist, the lower side of electric hoist is hung and is provided with a suspension beam, the both ends of suspension beam are horizontally slid and are provided with C-shaped frame respectively, C-shaped frame extends and bends downward, and the opening of C-shaped frame faces the inside of bridge and surrounds the outside of bridge catwalk, and the bottom frame is fixedly connected between the lower edges of two C-shaped frames, and the pump station is fixed on the bottom frame, and the rope drum is wound with steel rope, and the vertical opening is formed on the bottom frame, and the load bearing rod is slid vertically on the vertical opening, and the upper end of load bearing rod is connected with the cable clamp on bridge cable, and the lower end is fixed with lifting jack, and the steel rope in rope drum passes through lifting jack and extends downward, and the pump station is connected with lifting jack through hose, and before the connection of load bearing rod and cable clamp, the steel rope pulls lifting jack by rotating rope drum, and load bearing rod moves up and down, and the connection of load bearing rod and cable clamp is assisted, and the upper edge of two C-shaped frames is connected through an upper beam, and the horizontal jack is connected between the side of suspension beam and upper beam, and the pump station is connected with horizontal jack through hose, and the horizontal connecting pin is arranged on the upper end of load bearing rod, and the connecting pin inserts into the perforation on the lower side of cable clamp along with the translation of C-shaped frame, and the threaded cylinder that locks load bearing rod is threadedly connected to the end of connecting pin, and two connecting columns are arranged on the side of load bearing rod, and the end of connecting column is provided with the stop head, and two vertical columns are vertically arranged on the bottom frame, and the two vertical columns are connected with a groove rail through a plurality of springs respectively, and the stop head is embedded and slid in the two groove rails respectively, and the transverse adjusting system is connected between two trolleys.

2. The catenary bridge cable type heavy load lifting device according to claim, characterized in that: The C-shaped frame is further provided with a suspension frame, an auxiliary lifting roller is rotatably arranged on the suspension frame, the auxiliary lifting roller is located beside the load bearing rod, the auxiliary lifting roller is located above the lifting jack, the steel rope is wound around the auxiliary lifting roller from top to bottom and connected with the lifting jack.

3. The catenary bridge cable type heavy load lifting device according to claim, characterized in that: The transverse adjusting system comprises a connecting rod fixed to the side of the trolley, the end of the connecting rod is provided with a perforation, and further comprises a connecting rope, the two ends of the connecting rope are respectively inserted into the two perforations, the end of the connecting rope is inserted into the perforation and wound back, and the connecting rope is fixed to the body of the connecting rope by a plurality of buckles.

4. The catenary bridge cable type heavy load lifting device according to claim, characterized in that: The two steel ropes vertically extend downward, and the ends of the steel ropes are provided with hooks for suspending the main beam section.

5. The catenary bridge cable type heavy load lifting device according to claim, characterized in that: The catwalk walking surface is provided with a through hole for the load bearing rod to pass through, and the through hole is located directly below the cable clamp. The catwalk walking surface is provided with a through hole for the load bearing rod to pass through, and the through hole is located directly below the cable clamp.

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