Highway bridge girder erection machine suitable for girder erection with ultra-small curve radius

Abstract

The invention discloses a highway bridge girder erection machine suitable for girder erection with ultra-small curve radius, which is characterized in that when girder pieces with different spans are erected, the splicing states of a girder arm of the bridge girder erection machine are different, and the bridge girder erection machine adapts to ultra-small curves by reducing the length of the girder arm of the bridge girder erection machine; the zero column, the first column and the second column can rotate relative to the plane curve of the main beam arm to adapt to the radius of the curve; the first column has an inner installation mode and an outer installation mode to adapt to the ultra-small curve radius. The transverse stability of the bridge girder erection machine is provided through anchoring of a second column transverse moving track and an erected beam surface so as to ensure that a to-be-erected beam body transversely moves in place; in this way, conventional beam piece erection with the curve radius larger than 300 m and the ultra-small curve radius smaller than 300 m is achieved, the beam pieces are directly erected in place through the bridge girder erection machine under the ultra-small curve radius, compared with cast-in-place construction, crane construction and auxiliary buttress erection, the construction cost is greatly reduced, and the equipment application range is wide.

Description

Technical Field

[0001] The invention relates to the technical field of bridge erection machines, in particular to a highway bridge erection machine suitable for erecting beams with an ultra-small curve radius. Background Art

[0002] At present, the factory design of domestic highway bridge erection machines can only meet the requirements of beam erection with a curve radius of more than 300m, while most domestic ramp bridges are within a curve radius of less than 300m and more than 60m. This range is defined as an ultra-small curve in this article. Ramp bridges are generally designed as single lanes with a bridge deck width of 8.76m. In conventional design and construction plans, ramp bridges are generally constructed by cast-in-place and crane erection. However, some ramp bridges are located in high and steep slopes, with poor geological conditions, large terrain undulations, high bridge piers, narrow work sites, and crossing rivers and local roads. It is impossible to use scaffold cast-in-place construction and large cranes for hoisting construction. Some construction units adopt the method of setting up temporary auxiliary steel piers on the outside of the transverse curve of the bridge piers to reduce the curve radius and implement the bridge erection machine beam erection. This method has a long construction period, high cost of setting up piers, and high safety risks in high pier sections.

[0003] Therefore, it is necessary to develop a highway bridge erecting machine suitable for erecting beams with ultra-small curve radius to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to design a highway bridge erecting machine suitable for erecting beams with ultra-small curve radius in order to solve the above problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions: A highway bridge erecting machine suitable for erecting beams with an ultra-small curve radius, comprising: Main beam arm; Column No. 0: Column No. 0 is connected to the lower front end of the main beam arm through a circular flange; Column 1; No. 2 column; No. 1 column and No. 2 column both include a door frame, a rotating pin shaft, a connecting piece, a slide plate, a transverse hydraulic cylinder, an upper moving device, and a lower moving device; the door frame includes a bottom frame, a top frame, and two columns. The two columns are arranged parallel to each other between the bottom frame and the top frame. A slide groove is arranged horizontally on the top frame. The slide groove vertically penetrates the top frame. The slide groove is a stepped groove. The upper width of the slide groove is greater than the lower width. The slide plate can be horizontally slid above the slide groove. The upper moving device and the lower moving device are both installed on the connecting piece. The upper end of the main beam machine arm is formed in a T shape. The upper moving device is connected to the upper end of the main beam machine arm, and the lower moving device is connected to the lower end of the upper end of the main beam machine arm. The upper end of the rotating pin shaft is connected to the slide plate, and the lower end of the rotating pin shaft is connected to the connecting piece. The transverse hydraulic cylinder is installed at one end of the top frame, and the piston rod of the transverse hydraulic cylinder is connected to the slide plate; No. 3 column; No. 0 column, No. 1 column, No. 2 column and No. 3 column are arranged on the main beam arm from front to back in sequence; Two sets of running wheel boxes; each set of running wheel boxes includes at least two running wheel boxes; a set of running wheel boxes is installed under the bottom frame of the first column and the second column; The first column transverse track; a set of running wheel boxes are placed in the first column transverse track for movement; A plurality of No. 1 column steel buttresses; the plurality of No. 1 column steel buttresses are installed at the bottom of the No. 1 column transverse track; the lower ends of the plurality of No. 1 column steel buttresses are connected to the top of a bridge pier; The second column transverse track; a set of running wheel boxes are arranged in the second column transverse track for movement; A plurality of No. 2 column steel buttresses; the plurality of No. 2 column steel buttresses are installed at the bottom of the No. 2 column transverse track; the lower ends of the plurality of No. 2 column steel buttresses are connected to the top of another bridge pier; Front crane beam trolley; Rear beam lifting trolley; the front beam lifting trolley and the rear beam lifting trolley are installed on the tracks on both sides of the main beam machine arm and can be moved longitudinally through the trolley transfer device. The front beam lifting trolley and the rear beam lifting trolley are both equipped with a winch system for lifting the beam to be erected; the width of the No. 2 column and the No. 3 column can still meet the requirements of the beam transport vehicle entering the tail of the bridge erection machine to complete the beam feeding process after rotating an angle relative to the main beam machine arm when erecting beams on an ultra-small curve, and the beam to be erected will not interfere with the No. 3 column when the front beam lifting trolley and the beam transport vehicle are feeding beams synchronously.

[0006] Specifically, in the No. 1 column, the outer side mounting positions of the No. 1 column are arranged above the two ends of the bottom frame of the door frame and below the two ends of the top frame, and the inner side mounting positions of the No. 1 column are arranged above the bottom frame and below the top frame and inside each outer side mounting position of the No. 1 column; in the No. 1 column, two outer side mounting positions of the No. 1 column wheel box are arranged below the two ends of the bottom frame of the door frame, and one inner side mounting position of the No. 1 column wheel box is arranged inside each outer side mounting position of the No. 1 column wheel box; When erecting beams with a line plane curve radius greater than 300m, the columns are installed at the outer mounting position of the No. 1 column, and the running wheel box is installed at the outer mounting position of the No. 1 column wheel box. At this time, the distance between the two columns in the No. 1 column is the same as the distance between the two columns in the No. 2 column, and the distance between the two running wheel boxes under the No. 1 column is the same as the distance between the two running wheel boxes in the No. 2 column; When erecting beams with a line plane curve radius less than 300m, the columns are installed at the inner mounting position of the No. 1 column, and the running wheel box is installed at the inner mounting position of the wheel box of the No. 1 column. At this time, the distance between the two columns in the No. 1 column is smaller than the distance between the two columns in the No. 2 column, and the distance between the two running wheel boxes under the No. 1 column is smaller than the distance between the two running wheel boxes in the No. 2 column.

[0007] Specifically, the columns of column No. 0, column No. 1, column No. 2 and column No. 3 are all hydraulic telescopic leg structures.

[0008] Specifically, the main beam boom is composed of multiple box-type steel structure segments, and the multiple box-type steel structure segments are connected into a whole through a detachable rigid connection method; the multiple box-type steel structure segments are arranged from one end to the other end as the first main beam segment, the second main beam segment, the third main beam segment, the fourth main beam segment, the fifth main beam segment, the sixth main beam segment, and the seventh main beam segment.

[0009] Specifically, transverse track anchoring devices are arranged on both sides of the transverse track of the second column, and are connected to the erected beam surface through the anchoring devices.

[0010] The beneficial effects of the present invention are: The assembly state of the main beam arm of the bridge-erecting machine is different when erecting beams of different spans. The ultra-small curve can be adapted by reducing the length of the main beam arm of the bridge-erecting machine. The No. 0 column, No. 1 column and No. 2 column can rotate relative to the main beam arm on the plane curve to adapt to the curve radius. The No. 1 column has two installation methods, internal and external, to adapt to the ultra-small curve radius. The No. 2 column transverse track is anchored to the erected beam surface to provide lateral stability of the bridge-erecting machine to ensure that the beam to be erected is transversely moved into place. In this way, the conventional erection of beams with a curve radius greater than 300m and an ultra-small curve radius less than 300m is realized, and the bridge-erecting machine is used to directly erect beams in place under ultra-small curve radius. Compared with cast-in-place construction, crane construction and erection of auxiliary piers, the construction cost is greatly reduced, and the equipment has a wide range of adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a front view of a highway bridge erecting machine suitable for erecting beams with an ultra-small curve radius according to the present invention; Figure 2 It is a front view of the main beam arm of a highway bridge erecting machine suitable for erecting beams with an ultra-small curve radius according to the present invention; Figure 3 This is a front view of a highway bridge erecting machine suitable for erecting beams with an ultra-small curve radius according to the present invention, which is used to erect a 40m span beam; Figure 4 This is a front view of a highway bridge erecting machine suitable for erecting beams with an ultra-small curve radius according to the present invention, which is used to erect a 30m span beam; Figure 5 This is a front view of a highway bridge erecting machine suitable for erecting beams with an ultra-small curve radius according to the present invention, which is used to erect a 20m span beam; Figure 6 This is a front view of the No. 0 column of a highway bridge erecting machine suitable for erecting beams with an ultra-small curve radius according to the present invention; Figure 7 It is a front view of the ultra-small curve state of the first column of a highway bridge erecting machine suitable for erecting beams with an ultra-small curve radius according to the present invention; Figure 8It is a front view of the straight state of the first column of a highway bridge erecting machine suitable for erecting beams with an ultra-small curve radius according to the present invention; Fig. 9 This is a front view of the second column of a highway bridge erecting machine suitable for erecting beams with an ultra-small curve radius according to the present invention; Fig.10 This is a front view of the third column of a highway bridge erecting machine suitable for erecting beams with an ultra-small curve radius according to the present invention; In the figure, 1-main beam arm, 2-power room, 3-front beam trolley, 4-rear beam trolley, 5-column No. 0, 6-column No. 1, 7-transverse track of column No. 1, 8-steel pier of column No. 1, 9-column No. 2, 10-transverse track of column No. 2, 11-steel pier of column No. 2, 12-column No. 3, 13-beam surface already erected, 14-beam piece to be erected, 15-bridge pier, 16-outer mounting position of column No. 1, 17-outer mounting position of column No. 1, 18-outer mounting position of wheel box of column No. 1, 19-inner mounting position of wheel box of column No. 1, 20-first section of main beam, 21-second section of main beam Section 2, 22-main beam section 3, 23-main beam section 4, 24-main beam section 5, 25-main beam section 6, 26-main beam section 7, 27-40m installation position of column No. 0, 28-30m installation position of column No. 0, 29-20m installation position of column No. 0, 30-traveling wheel box, 31-anchoring device, 32-40m beam piece to be erected, 33-30m beam piece to be erected, 34-20m beam piece to be erected, 35-rotating pin shaft, 36-slide plate, 37-transverse hydraulic cylinder, 38-upper mover, 39-lower mover, 40-trolley mover. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0013] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0014] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0015] In the description of the present invention, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the product of the invention is usually placed when in use, or are directions or positional relationships commonly understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0016] Furthermore, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0017] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms such as "setting" and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings.

[0019] like Figure 1-10 As shown, a highway bridge erecting machine suitable for erecting beams with an ultra-small curve radius comprises: Main beam arm 1; Zero column 5; Zero column 5 is connected to the lower front end of the main beam arm 1 through a circular flange; Zero column is arranged at the lower front end of the main beam arm 1 by a rigid connection; when erecting bridges with different spans, it is installed under different main beam segments; when erecting ultra-small curve bridges or skew bridges, Zero column 5 and the main beam arm 1 can rotate along the flat curve by a corresponding angle; Column No. 1 6; in the process of passing through holes and erecting beams, column No. 1 6 uses the upper and lower conveyors 38 and 39 to support the main beam arm 1 of the bridge erecting machine; when column No. 1 6 moves longitudinally through holes, it uses the upper and lower conveyors 38 and 39 to move longitudinally along the main beam arm 1; when erecting a super-small curve bridge or an oblique bridge, column No. 1 6 and the main beam arm 1 can be rotated along the flat curve by a corresponding angle through the rotating pin 35; when the horizontal hydraulic cylinder 37 provides horizontal force expansion and contraction, the slide plate 36 drives the rotating pin 35 and the main beam arm 1 to move left and right along the top of the gantry of column No. 1 6 with the horizontal hydraulic cylinder 37, and the principle of this part of column No. 2 is the same as that of column No. 1; Column No. 2 9; Column No. 1 6 and Column No. 2 9 both include a door frame, a rotating pin shaft 35, a connecting piece, a slide plate 36, a transverse hydraulic cylinder 37, an upper moving device 38, and a lower moving device 39; the door frame includes a bottom frame, a top frame, and two columns, the two columns are arranged parallel to each other between the bottom frame and the top frame, a slide groove is arranged horizontally on the top frame, the slide groove vertically penetrates the top frame, the slide groove is a stepped groove, the upper width of the slide groove is greater than the lower width, and the slide plate 36 can be horizontally slidably placed in the slide groove At the top, the upper moving device 38 and the lower moving device 39 are both installed on the connecting piece, the upper end of the main beam arm 1 is formed into a T shape, the upper moving device 38 is connected to the upper end of the main beam arm 1, the lower moving device 39 is connected to the lower end of the upper end of the main beam arm 1, the upper end of the rotating pin 35 is connected to the slide plate 36, the lower end of the rotating pin 35 is connected to the connecting piece, the transverse hydraulic cylinder 37 is installed at one end of the top frame, and the piston rod of the transverse hydraulic cylinder 37 is connected to the slide plate 36; The third column 12; the zero column 5, the first column 6, the second column 9, and the third column 12 are arranged on the main beam arm 1 from front to back in sequence; Two sets of running wheel boxes 30; each set of running wheel boxes 30 includes at least two running wheel boxes 30; a set of running wheel boxes 30 is installed under the bottom frame of the first column 6 and the second column 9; The first column transverse track 7; a set of running wheel boxes 30 are arranged in the first column transverse track 7 for movement; A plurality of No. 1 column steel buttresses 8; the plurality of No. 1 column steel buttresses 8 are installed at the bottom of the No. 1 column transverse track 7; the lower ends of the plurality of No. 1 column steel buttresses 8 are connected to the top of a bridge pier 15; The second column transverse track 10; a set of running wheel boxes 30 are arranged in the second column transverse track 10 for movement; A plurality of No. 2 column steel buttresses 11; a plurality of No. 2 column steel buttresses 11 are installed at the bottom of the No. 2 column transverse track 10; the lower ends of the plurality of No. 2 column steel buttresses 11 are connected to the top of another bridge pier 15; Front lifting beam trolley 3; The rear beam lifting trolley 4; the front beam lifting trolley 3 and the rear beam lifting trolley 4 are longitudinally movably installed on the tracks on both sides of the main beam machine arm 1 through the trolley transfer device 40, and the front beam lifting trolley 3 and the rear beam lifting trolley 4 are both provided with a winch system for lifting the beam to be erected; the width of the second column 9 and the third column 12 can still meet the requirements of the beam transport vehicle entering the tail of the bridge erection machine to complete the beam feeding process after rotating an angle relative to the main beam machine arm 1 when erecting beams on an ultra-small curve, and the beam to be erected does not interfere with the third column 12 when the front beam lifting trolley 3 and the beam transport vehicle are feeding beams synchronously.

[0020] The No. 1 steel cushion pier 8 is used to transfer the construction load of the bridge erection machine to the designed stress position pier 15 and adjust the level of the No. 1 bridge erection machine column 6 so that the bridge erection machine is horizontal. The No. 2 steel cushion pier 11 is used to transfer the construction load of the bridge erection machine to the designed stress position and adjust the level of the No. 2 bridge erection machine column 9 so that the bridge erection machine is horizontal; the designed stress position is the beam erected surface 13.

[0021] like Figure 7 and 8 As shown, in the No. 1 column 6, a No. 1 column column outer side mounting position 16 is provided above both ends of the bottom frame of the door frame and below both ends of the top frame, and a No. 1 column column inner side mounting position 17 is provided above the bottom frame and below the top frame and located inside each No. 1 column column outer side mounting position 16; in the No. 1 column 6, two No. 1 column wheel box outer side mounting positions are provided below both ends of the bottom frame of the door frame, and a No. 1 column wheel box inner side mounting position is provided inside each No. 1 column wheel box outer side mounting position; When erecting a beam with a line plane curve radius greater than 300m, the column is installed at the outer mounting position 16 of the column No. 1, and the running wheel box 30 is installed at the outer mounting position 18 of the wheel box of the column No. 1. At this time, the distance between the two columns in the column No. 1 6 is the same as the distance between the two columns in the column No. 2 9, and the distance between the two running wheel boxes 30 under the column No. 1 6 is the same as the distance between the two running wheel boxes 30 in the column No. 2 9; When erecting a beam with a line plane curve radius less than 300m, the column is installed at the inner mounting position 17 of the column No. 1, and the running wheel box 30 is installed at the inner mounting position 19 of the wheel box of the column No. 1. At this time, the distance between the two columns in the No. 1 column 6 is smaller than the distance between the two columns in the No. 2 column 9, and the distance between the two running wheel boxes 30 under the No. 1 column 6 is smaller than the distance between the two running wheel boxes 30 in the No. 2 column 9.

[0022] like Figure 6-10 As shown, the columns of the zero column 5, the first column 6, the second column 9, and the third column 12 are all hydraulic telescopic leg structures. The telescopic leg structure is adjusted by the hydraulic and electrical system to adapt to different beam heights and different line longitudinal slopes; the telescopic leg structure is connected with a pin after being adjusted in place.

[0023] like Figure 2As shown, the main beam boom 1 is composed of multiple box-shaped steel structure segments, which are connected into a whole by a detachable rigid connection method; the multiple box-shaped steel structure segments are sequentially arranged from one end to the other as the first main beam segment 20, the second main beam segment 21, the third main beam segment 22, the fourth main beam segment 23, the fifth main beam segment 24, the sixth main beam segment 25, and the seventh main beam segment 26; different main beam segments are assembled when erecting bridges of different spans, and a zero column 40m installation position 27 is arranged at the lower end of the first main beam segment 20. A zero column 30m installation position 28 is arranged below the third main beam segment 22, and a zero column 20m installation position 29 is arranged below the fourth main beam segment 23.

[0024] like Fig. 9 As shown, transverse track anchoring devices 31 are provided on both sides of the transverse track 10 of the second column, and are connected to the beam surface 13 through the anchoring devices 31.

[0025] like Figure 1 As shown, in some embodiments, the highway bridge erecting machine further includes a power room 2; the power room 2 is arranged at the tail of the main beam machine arm 1 by a rigid connection to provide power for the bridge erecting machine during operation.

[0026] In some embodiments, the bridge-building machine also includes a hydraulic system, an electrical system, etc., all of which are existing technologies and will not be elaborated here.

[0027] like Figure 3 As shown, when erecting a 40m beam piece 32, the main beam arm of the bridge erecting machine is composed of the first main beam segment 20, the second main beam segment 21, the third main beam segment 22, the fourth main beam segment 23, the fifth main beam segment 24, the sixth main beam segment 25, and the seventh main beam segment 26, and the zero column 5 is installed below the front end of the first main beam segment 20; like Figure 4 As shown, when erecting the 30m beam piece 33, the main beam arm 1 of the bridge erecting machine is composed of the third main beam segment 22, the fourth main beam segment 23, the fifth main beam segment 24, the sixth main beam segment 25, and the seventh main beam segment 26, and the zero column 5 is installed below the front end of the third main beam segment 22; like Figure 5 As shown, when erecting a 20m beam piece 34, the main beam arm 1 of the bridge erecting machine is composed of the fourth main beam segment 23, the fifth main beam segment 24, the sixth main beam segment 25, and the seventh main beam segment 26, and the zero column 5 is installed below the front end of the fourth main beam segment 23; When erecting beams with a line plane curve radius greater than 300m, the zero column 5, the first column 6, the second column 9 and the main beam machine arm 1 are in a vertical state on the plane curve; the bridge erection machine through-hole and beam erection process are carried out in the middle of the erected bridge surface; When erecting beams with a plane curve radius of less than 300m, column 0 5, column 1 6, column 2 9 and the main beam machine arm 1 are rotated at a relative angle on the plane curve, and the transverse center lines of column 0 5, column 1 6, column 2 9 are parallel to the transverse center line of the front pier 15; when the bridge erection machine passes through a very small curve, the main beam machine arm 1 and column 1 6 and column 2 9 can move laterally relative to each other, so that column 1 6 moves laterally toward the inside of the curve and column 2 moves laterally toward the outside of the curve, allowing the bridge erection machine to adapt to small and very small curves to pass through the hole; when the bridge erection machine is erecting beams on a very small curve, the bridge erection machine is located on the inside of the curve of the span to be erected to take the beams, and the beam transporter feeds the beams from the outside of the curve to the supporting span of column 2 9 of the bridge erection machine, and then the beam transporter runs from the outside of the curve toward the tail of the bridge erection machine to take the beams.

[0028] The above are all prior art for moving the beam pieces longitudinally into place and raising and lowering the beams, which will not be described in detail here.

[0029] When the beam piece 14 to be erected is in transverse position, first install the No. 2 column transverse track 10 on the erected beam surface 13 through the anchoring device 31, then use the bridge erecting machine to transversely move the No. 1 column 6 along the No. 1 column transverse track 7 and the No. 2 column 9 along the No. 2 column transverse track 10 to get into position, finally, the main beam machine arm 1 is relatively transversely moved on the No. 1 column 6 and the No. 2 column 9, so that the beam piece 14 to be erected is in transverse position to achieve the purpose of erecting the beam.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A highway bridge erecting machine suitable for erecting beams with ultra-small curve radius, characterized in that: include: Main beam arm (1); The zero column (5); the zero column (5) is connected to the lower front end of the main beam arm (1) through a circular flange; Column 1 (6); The second column (9); the first column (6) and the second column (9) both include a door frame, a rotating pin shaft (35), a connecting piece, a slide plate (36), a transverse hydraulic cylinder (37), an upper moving device (38), and a lower moving device (39); the door frame includes a bottom frame, a top frame, and two columns, the two columns are arranged parallel to each other between the bottom frame and the top frame, a slide groove is arranged horizontally on the top frame, the slide groove vertically penetrates the top frame, the slide groove is a stepped groove, the upper width of the slide groove is greater than the lower width, and the slide plate (36) can be horizontally slidably placed above the slide groove The upper moving device (38) and the lower moving device (39) are both mounted on the connecting member, the upper end of the main beam arm (1) is formed into a T-shape, the upper moving device (38) is connected to the upper end of the main beam arm 1, the lower moving device (39) is connected to the lower end of the upper end of the main beam arm 1, the upper end of the rotating pin shaft (35) is connected to the slide plate (36), the lower end of the rotating pin shaft (35) is connected to the connecting member, the transverse hydraulic cylinder (37) is mounted on one end of the top frame, and the piston rod of the transverse hydraulic cylinder (37) is connected to the slide plate (36); The third column (12); the zero column (5), the first column (6), the second column (9), and the third column (12) are arranged on the main beam arm (1) in sequence from front to back; Two sets of running wheel boxes (30); each set of running wheel boxes (30) comprises at least two running wheel boxes (30); a set of running wheel boxes (30) is installed under the bottom frame of the first column (6) and the second column (9); A first column transverse track (7); a set of running wheel boxes (30) are movably placed in the first column transverse track (7); A plurality of No. 1 column steel piers (8); the plurality of No. 1 column steel piers (8) are installed at the bottom of the No. 1 column transverse track (7); the lower ends of the plurality of No. 1 column steel piers (8) are connected to the top of a bridge pier (15); A second column transverse track (10); a set of running wheel boxes (30) are movably placed in the second column transverse track (10); A plurality of No. 2 column steel piers (11); the plurality of No. 2 column steel piers (11) are installed at the bottom of the No. 2 column transverse track (10); the lower ends of the plurality of No. 2 column steel piers (11) are connected to the top of another bridge pier (15); Front lifting beam trolley (3); The rear beam lifting trolley (4) is longitudinally movable on the rails on both sides of the main beam machine arm (1) through a trolley transfer device (40), and the front beam lifting trolley (3) and the rear beam lifting trolley (4) are both provided with a hoisting system for lifting the beam to be erected; the width of the second column (9) and the third column (12) can still meet the requirements of the beam transport vehicle entering the rear of the bridge erection machine to complete the beam feeding process after rotating an angle relative to the main beam machine arm (1) when erecting beams on an ultra-small curve, and the beam to be erected does not interfere with the third column (12) when the front beam lifting trolley (3) and the beam transport vehicle are synchronously feeding beams.

2. A highway bridge erecting machine suitable for erecting beams with ultra-small curve radius according to claim 1, characterized in that: In the No. 1 column (6), a No. 1 column column outer side mounting position (16) is provided above both ends of the bottom frame of the door frame and below both ends of the top frame, and a No. 1 column column inner side mounting position (17) is provided above the bottom frame and below the top frame and located inside each No. 1 column column outer side mounting position (16); in the No. 1 column (6), two No. 1 column wheel box outer side mounting positions are provided below both ends of the bottom frame of the door frame, and a No. 1 column wheel box inner side mounting position is provided inside each No. 1 column wheel box outer side mounting position; When erecting a beam with a line plane curve radius greater than 300m, the column is installed at the outer mounting position 16 of the column No. 1, and the running wheel box 30 is installed at the outer mounting position (18) of the wheel box of the column No.

1. At this time, the distance between the two columns in the column No. 1 (6) is the same as the distance between the two columns in the column No. 2 (9), and the distance between the two running wheel boxes 30 below the column No. 1 (6) is the same as the distance between the two running wheel boxes (30) in the column No. 2 (9); When erecting a beam with a line plane curve radius less than 300m, the column is installed at the inner side mounting position (17) of the column No. 1, and the running wheel box (30) is installed at the inner side mounting position (19) of the wheel box of the column No.

1. At this time, the distance between the two columns in the column No. 1 (6) is smaller than the distance between the two columns in the column No. 2 (9), and the distance between the two running wheel boxes (30) below the column No. 1 (6) is smaller than the distance between the two running wheel boxes (30) in the column No. 2 (9).

3. A highway bridge erecting machine suitable for erecting beams with ultra-small curve radius according to claim 1, characterized in that: The uprights of the No. 0 column (5), the No. 1 column (6), the No. 2 column (9) and the No. 3 column (12) are all hydraulic telescopic leg structures.

4. A highway bridge erecting machine suitable for erecting beams with ultra-small curve radius according to claim 1, characterized in that: The main beam boom (1) is composed of a plurality of box-shaped steel structure segments, which are connected into a whole by a detachable rigid connection method; the plurality of box-shaped steel structure segments are sequentially arranged from one end to the other end as a first main beam segment (20), a second main beam segment (21), a third main beam segment (22), a fourth main beam segment (23), a fifth main beam segment (24), a sixth main beam segment (25), and a seventh main beam segment (26).

5. A highway bridge erecting machine suitable for erecting beams with ultra-small curve radius according to claim 1, characterized in that: Transverse track anchoring devices (31) are arranged on both sides of the second column transverse track (10), and are connected to the beam-mounted surface through the anchoring devices (31).

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