CN217972224U

CN217972224U - Hoisting steel wire rope swinging connection guiding device for reverse bridge dismantling of bridge girder erection machine

Info

Publication number: CN217972224U
Application number: CN202222198345.5U
Authority: CN
Inventors: 吴冠男; 王靖国; 冯爱国; 彭典华
Original assignee: Wuhan Surveying Geotechnical Research Institute Co Ltd of MCC
Current assignee: Wuhan Surveying Geotechnical Research Institute Co Ltd of MCC
Priority date: 2022-08-19
Filing date: 2022-08-19
Publication date: 2022-12-06
Anticipated expiration: 2032-08-19

Abstract

The utility model provides a guide device is connected in hoist and mount wire rope swing that is used for frame bridge crane to do bridge removal. The guide device comprises hoisting steel wire ropes, a steel wire rope drum, a traction device positioned on the bridge floor and steel wire rope swinging devices symmetrically arranged on two sides of the bridge; the traction device comprises a guide steel wire rope, a winding mechanism and a steel wire rope lifting mechanism, and the steel wire rope swinging device comprises an upper swinging pipe, a positioning pipe and a lower swinging pipe; one end of each of the guide steel wire rope and the hoisting steel wire rope is respectively fixed on the winding mechanism and the steel wire reel, the other end of each of the guide steel wire rope and the hoisting steel wire rope penetrates through the guide hole in the steel wire rope lifting mechanism and then sequentially penetrates through the steel wire rope swinging devices on the corresponding sides and stretches into the lower portion of the bridge, and self-locking clamping parts which are matched with each other are arranged at the free ends, located below the bridge, of the hoisting steel wire rope and the guide steel wire rope. The utility model discloses can make wire rope pass from the underbridge more safely, avoid when the bridge construction constructor with hanging ladder hang wire rope and take place the incident under the underbridge.

Description

Hoisting steel wire rope swing connection guiding device for bridge girder erection machine reverse bridge dismantling

Technical Field

The utility model relates to a construction appurtenance specifically is a guiding device is connected in hoist and mount wire rope swing that is used for bridge crane to do contrary bridge of tearing open, mainly is through setting up swing mechanism and guide wire rope, pulls hoist and mount wire rope's tip to the bridge floor below from the bridge floor to pull back to the bridge floor from the offside of bridge and form a loop, conveniently hoist and mount wire rope's location.

Background

The assembled prestressed T-shaped bridge has the advantages of simple structure, definite stress, convenience in installation and the like, is widely applied to the construction of small and medium-span bridges in China, and as early as the 50 th century, china builds a plurality of T-shaped bridges which play an important role in improving highway traffic in China. When a T-shaped bridge is detached in the traditional bridge detaching method operation, the T-shaped bridge is generally hoisted through a positioning steel wire rope, if construction facilities (such as an urban viaduct) can be arranged below a general bridge for binding the hoisting steel wire rope, the method is that the construction facilities such as a crank arm vehicle and a scissor vehicle are erected on the ground, workers lift from the ground to the bottom of the bridge to operate by means of the construction facilities, and the method has strict requirements on the site and needs to lease the construction facilities; if construction facilities (such as crossing rivers and lake bridges) cannot be erected below the bridge, operators mostly use steel wire ropes to bind the steel wire ropes from the top to the bottom of the bridge, and the method is economical, but high in danger coefficient, easy to cause personal injury due to safety accidents and high in requirements for self-abilities of the operators.

Disclosure of Invention

The utility model aims at carrying out the safety problem that the wire rope guide exists when dismantling the bridge to the current, provide a hoist and mount wire rope swing connection guiding device that is used for bridge girder erection machine to do the bridge of dismantling, the device can be without constructor lower bridge, alright safe guide hoist and mount wire rope to assigned position.

In order to achieve the technical purpose, the utility model provides a hoisting steel wire rope swing connection guiding device for bridge girder erection machine reverse-operation bridge dismantling, which comprises a bridge hoisting steel wire rope, a steel wire rope reel, a traction device positioned above a bridge floor and two groups of steel wire rope swing devices symmetrically arranged at two sides of the bridge; the traction device comprises a guide steel wire rope, a winding mechanism and a steel wire rope lifting mechanism, wherein the steel wire rope lifting mechanism comprises a support frame and a lifting frame which is connected to the support frame in a sliding manner, a guide hole is formed in the lifting frame, and a locking mechanism is arranged at the guide hole; the steel wire rope swinging device comprises an upper swinging pipe, a positioning pipe and a lower swinging pipe, the positioning pipe is connected to the bridge floor through a bolt, the outlet end of the upper swinging pipe extends into the inlet end of the positioning pipe and is rotatably connected with the positioning pipe through an upper connecting rotating shaft, and the end part of the lower swinging pipe is fixed at the outlet end of the positioning pipe through a lower connecting rotating shaft; one end of the guide steel wire rope is fixed on the winding mechanism, and the other end of the guide steel wire rope penetrates through a guide hole in the steel wire rope lifting mechanism and then extends into the upper swing pipe close to the side, and then sequentially penetrates through the positioning pipe and the lower swing pipe on the same side and then extends into the lower part of the bridge; the end part of the hoisting steel wire rope is fixed on the steel wire rope reel, the other end of the hoisting steel wire rope penetrates through the guide hole in the steel wire rope lifting mechanism and then extends into the upper swing pipe on the other side, the hoisting steel wire rope sequentially penetrates through the positioning pipe on the same side and the lower swing pipe and then extends into the lower part of the bridge, and self-locking clamping parts matched with each other are arranged at the free ends of the hoisting steel wire rope and the guide steel wire rope, which are positioned below the bridge.

The utility model discloses better technical scheme: the self-locking clamping part comprises a clamping groove arranged at the end part of the guide steel wire rope and a clamping block arranged at the end part of the hoisting steel wire rope, a wedge-shaped convex block is arranged in the middle of the clamping block, a wedge-shaped groove is correspondingly arranged in the middle of the groove body of the clamping groove, and magnet components which are mutually adsorbed are arranged on the inner groove surface of the wedge-shaped groove and the embedding surface of the wedge-shaped convex block.

The utility model discloses better technical scheme: the positioning pipe is of an L-shaped pipe groove structure and is fixed at the corner of the upper part of the bridge; the upper swing pipe is a pipe body with the diameter larger than that of the self-locking clamping part, and the end part of the upper swing pipe is rotatably connected to an upper port of the positioning pipe, which is positioned on the upper surface part of the bridge; the lower swing pipe comprises a pipe body with the diameter larger than that of the self-locking clamping part and a connecting arm arranged on the side face of the pipe body, and is rotationally connected to a lower port of the positioning pipe, which is positioned on the side face of the bridge, through the connecting arm; two steel wire ropes extend into the positioning pipe from the corresponding side upper swing pipe respectively and extend to the lower swing pipe along the groove part of the positioning pipe.

The utility model discloses better technical scheme: a lifting rail is vertically arranged on a support frame of the steel wire rope lifting mechanism, the lifting frame is an electric lifting frame, is embedded into the lifting rail in a sliding mode and can move up and down along the lifting rail; the locking mechanism is a positioning locking bolt inserted into the guide hole; when the steel wire rope fixing device works, the two steel wire ropes penetrate through the guide hole, and are fixed through the positioning locking bolt; the lifting frame is controlled by the electric mechanism to perform repeated vertical motion along the lifting track, so that the two steel wire ropes are driven to vertically move.

The utility model discloses better technical scheme: the winding mechanism comprises a rotating handle, a locking end cover, a connecting sleeve, a locking screw, a positioning pin, a rolling bearing, a winding drum and a traction rope; the winding drum is of a hollow cylinder structure and is connected with the sleeve through a positioning pin, the positioning pin is used for installing and positioning the sleeve and the rolling bearing, the rotating handle is connected with a port of the winding drum, and the traction rope is wound on the winding drum and is connected with the guide steel wire rope through the traction rope; the rotation direction of the winding drum is opposite to that of the steel wire rope winding drum.

The utility model discloses better technical scheme: the clamping groove and the clamping block are respectively connected with the corresponding steel wire rope hinges.

The utility model discloses can drive guide wire rope and hoist and mount wire rope and be located the position of bridge below and swing through both sides pendulous device, after wire rope swings certain angle, bridge below and wire rope are fixed from the mutual gomphosis of locking-type joint part, then through rolling machine rolling guide wire rope, hoist and mount wire rope is put outward to wire rope reel antiport simultaneously, with two steel wires connect the position from locking-type joint part draw-up to more than the bridge floor, thereby pull the bridge floor with hoist and mount wire rope's the other end, then will guide wire rope and hoist and mount wire rope connect the position from locking-type joint part open, and remove guide wire rope and draw gear, the free end that will hoist and mount wire rope with be located the tip fixed connection on the wire rope reel, realize wire rope's positioning work to the bridge.

The utility model has simple structure and convenient use, can be operated by only one person, can select different lengths of hoisting steel wire ropes according to the width and height of the bridge, is convenient to control, and meets the working requirement; the device avoids the installation and guidance of the steel wire rope by constructors under the bridge, avoids the occurrence of safety accidents, can effectively enable the steel wire rope to reach the designated position, and is convenient for the follow-up work of the bridge dismantling machine.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural view of the steel wire rope swinging device of the present invention;

FIG. 3 is a plan view of the winding mechanism and the wire rope reel of the present invention;

fig. 4 is a schematic structural view of the winding mechanism of the present invention;

FIG. 5 is a schematic view of the traction state after the connection of the present invention;

fig. 6 is an enlarged schematic view of a portion a of fig. 5.

In the figure: the steel wire rope lifting device comprises 1-an upper swing pipe, 2-an upper connecting rotating shaft, 3-a positioning pipe, 4-a lower swing pipe, 5-a lower connecting rotating shaft, 6-a hoisting steel wire rope, 7-a clamping groove, 8-a clamping block, 800-a wedge-shaped protruding block, 801-a magnet component, 9-a steel wire rope lifting mechanism, 900-a supporting frame, 901-a lifting frame, 902-a guiding hole, 903-a hoisting locking mechanism, 10-a winding mechanism, 1000-a rotating handle, 1001-a locking end cover, 1002-a connecting sleeve, 1003-a locking screw, 1004-a positioning pin, 1005-a rolling bearing, 1006-a winding drum, 1007-a traction rope, 11-a steel wire rope winding drum, 12-a guiding steel wire rope and 13-a bridge.

Detailed Description

The present invention will be further explained with reference to the drawings and examples. Fig. 1 to 5 are drawings of the embodiment, which are drawn in a simplified manner and are only used for clearly and concisely illustrating the purpose of the embodiment of the present invention. The following detailed description of the embodiments of the present invention is presented in the accompanying drawings and is not intended to limit the scope of the invention as claimed. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "inner", "outer", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that the products of the present invention are conventionally placed when in use, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are merely for convenience of description of the present invention and simplified description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The embodiment provides a hoisting steel wire rope swinging connection guiding device for reverse-operation bridge dismantling of a bridge girder erection machine, and as shown in fig. 1, the guiding device comprises a bridge hoisting steel wire rope 6, a steel wire rope drum 11, a traction device positioned above a bridge floor and two groups of steel wire rope swinging devices symmetrically arranged at two sides of a bridge 13; the traction device comprises a guide steel wire rope 12, a winding mechanism 10 and a steel wire rope lifting mechanism 9, as shown in fig. 3, the steel wire rope lifting mechanism 9 comprises a support frame 900 and a lifting frame 901 which is connected to the support frame 900 in a sliding manner, a lifting track is vertically arranged on the support frame 900 of the steel wire rope lifting mechanism 9, the lifting frame 901 is an electric lifting frame, the lifting frame is controlled by a motor to lift up and down, and the lifting frame 901 is embedded into the lifting track in a sliding manner and can move up and down along the lifting track; a guide hole 902 is formed in the lifting frame 901, and a locking mechanism 903 is arranged at the guide hole 902; the locking mechanism 903 is a positioning locking bolt inserted into the guide hole 902. When the hoisting device works, the hoisting steel wire rope 6 and the guide steel wire rope 12 penetrate through the guide hole 902, and the two steel wire ropes are fixed through the positioning locking bolt; the lifting frame 901 performs repeated vertical movement along the lifting track under the control of the electric mechanism, so as to drive the two steel wire ropes to move vertically.

The embodiment provides a hoisting steel wire rope swinging connection guiding device for reverse-operation bridge dismantling of a bridge girder erection machine, and as shown in fig. 1 and fig. 2, the steel wire rope swinging device comprises an upper swinging pipe 1, a positioning pipe 3 and a lower swinging pipe 4, wherein the positioning pipe 3 is in an L-shaped pipe groove structure and is fixed at the position of an upper corner of a bridge girder 11; the upper swinging pipe 1 is a pipe body with the diameter larger than that of the self-locking clamping part, the outlet end of the upper swinging pipe extends into the inlet end of the positioning pipe 3, and the upper swinging pipe is rotatably connected with the upper port of the positioning pipe 1, which is positioned on the upper surface part of the bridge 11, through an upper connecting rotating shaft 2; the lower swing pipe 4 comprises a pipe body with the diameter larger than that of the self-locking clamping part and a connecting arm arranged on the side face of the pipe body, and the connecting arm is fixed at a lower port of the positioning pipe 3, which is positioned on the side face of the bridge 11, through a lower connecting rotating shaft 5. As shown in fig. 1 and fig. 3, one end of the guide wire rope 12 is fixed on the winding mechanism 10, and the other end of the guide wire rope passes through the guide hole 902 on the wire rope lifting mechanism 9 and then extends into the upper swing pipe 1 on the adjacent side, and passes through the positioning pipe 3 and the lower swing pipe 4 on the same side in sequence and then extends into the lower part of the bridge 13; one end of the hoisting steel wire rope 6 is fixed on the steel wire rope reel 11, the other end of the hoisting steel wire rope passes through the guide hole 902 on the steel wire rope lifting mechanism 9 and extends into the upper swing pipe 1 on the other side, and sequentially passes through the positioning pipe 3 and the lower swing pipe 4 on the same side and then extends into the lower part of the bridge 13, and self-locking clamping parts which are matched with each other are arranged at the free ends of the hoisting steel wire rope 6 and the guide steel wire rope 12 which are positioned below the bridge 13; as shown in fig. 4, from locking-type joint part including setting up draw-in groove 7 and the fixture block 8 of setting at hoist and mount 6 tip of wire rope at guide wire rope 12 tip, draw-in groove and fixture block are primary and secondary to be buckled, can only follow vertical direction slip after inserting the completion and take out, and draw-in groove 7 upper portion has a horizontal shielding structure, the ascending displacement of fixture block 8 can't make the structure separation, be equipped with wedge lug 800 in the middle part of fixture block 8, it is equipped with the wedge groove to correspond in the middle part of the 7 cell bodies of draw-in groove, and be equipped with the magnet component 801 of mutual absorption at the inner trough face in wedge groove and wedge lug 800 embedding face. The clamping groove 7 and the clamping block 8 are respectively connected with the corresponding steel wire rope hinges.

The embodiment provides a swinging connection guiding device for a hoisting steel wire rope for reverse bridge dismantling of a bridge girder erection machine, and as shown in fig. 5, the winding mechanism 10 comprises a rotating handle 1000, a locking end cover 1001, a connecting sleeve 1002, a locking screw 1003, a positioning pin 1004, a rolling bearing 1005, a winding cylinder 1006 and a traction rope 1007; the winding cylinder 1006 is of a hollow cylinder structure and is connected with the sleeve 1002 through a positioning pin 1004, the positioning pin 1004 is used for installing and positioning the sleeve 1002 and the rolling bearing 1005, the rotating handle 1000 is connected with a port of the winding cylinder 1006, and the traction rope 1007 is wound on the winding cylinder 1006 and is connected with the guide steel wire rope 12 through the traction rope 1007; the rotation direction of the winding drum 1006 is opposite to that of the steel wire rope winding drum 11, the steel wire rope winding drum 11 is a rotary drum, and the hoisting steel wire rope 6 can be automatically wound and unwound under the traction action.

The utility model is further explained by combining the concrete embodiment, wherein the upper swing pipe 1 in the embodiment is a Q235 steel pipe with the inner diameter of 10.5cm, the outer diameter of 11cm and the length of 1.0 m; the inner diameter of the positioning pipe 3 is 12cm, the outer diameter of the positioning pipe is 12.5cm, two square steel pipes with the length of 1.0m are welded to form a straight angle steel, and the outer part of the straight angle steel is removed to form a groove shape; the lower swing pipe 4 has an inner diameter of 10.5cm and an outer diameter of 11cm, and a connecting arm is arranged on the side surface of the lower swing pipe.

When the utility model is used, firstly, one end of the guide steel wire rope 6 provided with the clamping groove 7 sequentially passes through the upper swing pipe 1, the positioning pipe 3 and the lower swing pipe 5 of one group of swing devices, the end of the guide steel wire rope 6 not provided with the clamping groove 7 passes through the guide hole 902 on the steel wire rope lifting mechanism 9 and then is connected with the traction rope 1007 of the winding mechanism 10, the positioning pipe 3 of the group of swing devices is fixed at the right-angle position of the side of the bridge 13 through a screw, and the end of the guide steel wire rope 6 provided with the clamping groove 7 is slowly lowered to be led below the bridge 13; one end of a hoisting steel wire rope 12 provided with a fixture block 8 sequentially penetrates through an upper swing pipe 1, a positioning pipe 3 and a lower swing pipe 5 of another set of swing device, the free end of the hoisting steel wire rope 12 without the fixture block 8 penetrates through a guide hole 902 on a steel wire rope lifting mechanism 9 and then is fixed on a steel wire rope reel 11, the redundant length is wound on the steel wire rope reel 11, then the positioning pipe 3 of the set of swing device is fixed above the bridge floor at the other side of the bridge and on the side edge of the bridge by using bolts, and then the end of the fixture block 8 connected with the hoisting steel wire rope 6 is slowly lowered to the position below the bridge floor. The locking bolt at the guide hole 902 of the steel wire rope lifting mechanism 9 is screwed, then the lifting motor of the steel wire rope lifting mechanism 9 is started to control the lifting frame 902 to move repeatedly vertically along the lifting track, so as to drive the lifting steel wire rope 6 and the guide steel wire rope 12 to move vertically, further drive the clamping groove 7 and the clamping block 8 which are positioned under the bridge to swing synchronously, when the swinging amplitude of the clamping groove 7 and the clamping block 8 reaches a certain range, collision occurs, and as the clamping groove 7 and the clamping block 8 are provided with magnet members which are mutually adsorbed, the clamping groove 7 and the clamping block 8 can be attracted and then clamped into an integral structure, as shown in fig. 6, the clamping groove 7 and the clamping block 8 are of a primary-secondary buckle structure, the clamping groove can only slide in the vertical direction after clamping and be taken out, and the upper part of the clamping groove 7 is provided with a transverse shielding structure, and the upward displacement of the clamping block 8 can not separate the structures. At the moment, the winding mechanism 10 is only required to be manually rotated to wind the guide steel wire rope 12, when the steel wire rope is wound, the hoisting steel wire rope 6 wound on the steel wire rope winding drum 11 automatically discharges a certain length in the process of rotating the roller, in the winding process, the connected clamping groove 7 and the clamping block 8 can be rotated to the bridge floor and then are disassembled, the guide steel wire rope 12 and the swinging device on the side are disassembled, the clamping block at the end, provided with the clamping block 8, of the hoisting steel wire rope 6 is taken down, an annular steel wire rope sleeved on a bridge to be disassembled and assembled is fixedly connected with the end part fixed on the steel wire rope winding drum 11, other devices are disassembled, and then subsequent bridge dismantling by a bridge erecting machine reverse construction method can be carried out.

The above description is only one embodiment of the present invention, and the description is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a hoist and mount wire rope swing connection guiding device that is used for bridge girder erection machine to do bridge removal, its characterized in that: the guiding device comprises a bridge hoisting steel wire rope (6), a steel wire rope drum (11), a traction device positioned above the bridge floor and two groups of steel wire rope swinging devices symmetrically arranged at two sides of the bridge (13); the traction device comprises a guide steel wire rope (12), a winding mechanism (10) and a steel wire rope lifting mechanism (9), wherein the steel wire rope lifting mechanism (9) comprises a support frame (900) and a lifting frame (901) connected to the support frame (900) in a sliding mode, a guide hole (902) is formed in the lifting frame (901), and a locking mechanism (903) is arranged at the guide hole (902); the steel wire rope swinging device comprises an upper swinging pipe (1), a positioning pipe (3) and a lower swinging pipe (4), the positioning pipe (3) is connected to the bridge floor through a bolt, the outlet end of the upper swinging pipe (1) extends into the inlet end of the positioning pipe (3) and is rotatably connected with the positioning pipe (3) through an upper connecting rotating shaft (2), and the end part of the lower swinging pipe (4) is fixed at the outlet end of the positioning pipe (3) through a lower connecting rotating shaft (5); one end of the guide steel wire rope (12) is fixed on the winding mechanism (10), and the other end of the guide steel wire rope passes through a guide hole (902) in the steel wire rope lifting mechanism (9) and then extends into the upper swing pipe (1) on the adjacent side, and then sequentially passes through the positioning pipe (3) and the lower swing pipe (4) on the same side and then extends into the lower part of the bridge (13); the end part of the hoisting steel wire rope (6) is fixed on the steel wire rope reel (11), the other end of the hoisting steel wire rope penetrates through a guide hole (902) in the steel wire rope lifting mechanism (9) and then extends into the upper swing pipe (1) on the other side, the hoisting steel wire rope penetrates through the positioning pipe (3) on the same side and the lower swing pipe (4) in sequence and then extends into the lower part of the bridge (13), and self-locking clamping parts which are matched with each other are arranged at the free ends, located below the bridge (13), of the hoisting steel wire rope (6) and the guide steel wire rope (12).

2. The swinging connection guide device for the hoisting steel wire rope for the reverse bridge dismantling of the bridge girder erection machine according to the claim 1 is characterized in that: the self-locking clamping part comprises a clamping groove (7) arranged at the end part of a guide steel wire rope (12) and a clamping block (8) arranged at the end part of a hoisting steel wire rope (6), a wedge-shaped bump (800) is arranged in the middle of the clamping block (8), a wedge-shaped groove is correspondingly arranged in the middle of a groove body of the clamping groove (7), and magnet components (801) which are mutually adsorbed are arranged on the inner groove surface of the wedge-shaped groove and the embedding surface of the wedge-shaped bump (800).

3. The swinging connection guide device for the hoisting steel wire rope for reverse bridge dismantling of the bridge erecting machine according to claim 1 or 2, which is characterized in that: the positioning pipe (3) is of an L-shaped pipe groove structure and is fixed at the corner of the upper part of the bridge (13); the upper swing pipe (1) is a pipe body with the diameter larger than that of the self-locking clamping part, and the end part of the upper swing pipe is rotatably connected to an upper port of the positioning pipe (3) on the upper surface of the bridge (13); the lower swing pipe (4) comprises a pipe body with the diameter larger than that of the self-locking clamping part and a connecting arm arranged on the side face of the pipe body, and is rotatably connected to a lower port of the positioning pipe (3) on the side face of the bridge (13) through the connecting arm; the two steel wire ropes extend into the positioning pipe (3) from the corresponding side upper swing pipe (1) respectively and extend to the lower swing pipe (4) along the groove part of the positioning pipe (3).

4. The swinging connection guide device for the hoisting steel wire rope for reverse bridge dismantling of the bridge erecting machine according to claim 1 or 2, which is characterized in that: a lifting track is vertically arranged on a support frame (900) of the steel wire rope lifting mechanism (9), the lifting frame (901) is an electric lifting frame, is embedded into the lifting track in a sliding mode, and can move up and down along the lifting track; the locking mechanism (903) is a positioning locking bolt inserted into the guide hole (902); when the device works, the two steel wire ropes pass through the guide hole (902) and are fixed through the positioning locking bolt; the lifting frame (901) is controlled by the electric mechanism to perform repeated vertical motion along the lifting track, so that the two steel wire ropes are driven to vertically move.

5. The swinging connection guide device for the hoisting steel wire rope for reverse bridge dismantling of the bridge erecting machine according to claim 1 or 2, which is characterized in that: the winding mechanism (10) comprises a rotating handle (1000), a locking end cover (1001), a connecting sleeve (1002), a locking screw (1003), a positioning pin (1004), a rolling bearing (1005), a winding drum (1006) and a traction rope (1007); the winding drum (1006) is of a hollow cylinder structure and is connected with the sleeve (1002) through a positioning pin (1004), the sleeve (1002) and the rolling bearing (1005) are installed and positioned by the positioning pin (1004), the rotating handle (1000) is connected with a port of the winding drum (1006), and the traction rope (1007) is wound on the winding drum (1006) and is connected with the guide steel wire rope (12) through the traction rope (1007); the rotation direction of the winding drum (1006) is opposite to that of the steel wire rope drum (11).

6. The hoisting steel wire rope swing connection guiding device for reverse bridge dismantling of the bridge girder erection machine according to claim 2, characterized in that: the clamping groove (7) and the clamping block (8) are respectively connected with the corresponding steel wire rope hinges.