CN111945574A - Bridge girder erection machine complete machine in-situ turning device and turning method - Google Patents
Bridge girder erection machine complete machine in-situ turning device and turning method Download PDFInfo
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- CN111945574A CN111945574A CN202010836039.2A CN202010836039A CN111945574A CN 111945574 A CN111945574 A CN 111945574A CN 202010836039 A CN202010836039 A CN 202010836039A CN 111945574 A CN111945574 A CN 111945574A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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Abstract
The invention discloses a complete machine in-situ turning device of a bridge girder erection machine, which comprises: the first bridge erecting machine carrying frame comprises a fixed part, a connecting part and a rotating part, the connecting part is arranged between the fixed part and the rotating part and is used for supporting and rotatably connecting the rotating part above the fixed part, the upper end of the connecting part is fixedly connected with the rotating part, the rotating part can rotate relative to the fixed part around the central axis of the connecting part, and the second bridge erecting machine carrying frame is arranged on the second carrying vehicle and is used for carrying one end of the bridge erecting machine so that the bridge erecting machine can rotate around the central axis of the connecting part under the support of the first bridge erecting machine carrying frame and the carrying of the second bridge erecting machine carrying frame. The whole bridge girder erection machine rotates during steering, disassembly and reassembly are not needed, the labor intensity of field workers is reduced, and the cost of renting hoisting equipment is saved.
Description
Technical Field
The invention relates to the technical field of bridge erection construction, in particular to a complete machine in-situ turning device and a turning method of a bridge erection machine.
Background
The JQL185 type bridge girder erection machine can replace the traditional 'rail replacement method' laying and erecting operation, so that the purpose of laying a seamless line at one time is achieved, the construction cost is reduced, and the construction efficiency is improved. In recent years, the building frame is more and more popular among paving and erecting construction units and construction units.
However, due to the structural characteristics, the direction bridging can be carried out forward in one direction only. When the continuous turning operation is needed in the seamless track laying construction with a plurality of points and long lines, the limitation of the JQL185 bridge erecting machine one-way laying is particularly obvious. There are two more original approaches: 1. disassembling the components, turning around one by one, and assembling the components one by one; at least one week, labor and time; 2. leveling a large square with a circle of 100 meters, organizing two trucks to carry the whole machine, adopting a method of 'reciprocating direction and reciprocating forward and backward movement', and spending one day to finish turning around; the disadvantage is that the square with 100 meters round can not be obtained.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides the complete machine in-situ turning device of the bridge girder erection machine, the complete machine rotates during turning without disassembly and reassembly, the turning work efficiency is improved, the turning time is shortened, the labor intensity of field workers is reduced, and the cost of renting hoisting equipment is saved.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a bridging machine complete machine pivot device in situ which characterized in that includes: the first carrying vehicle, the second carrying vehicle, the first bridge erecting machine carrying frame and the second bridge erecting machine carrying frame, wherein the first bridge erecting machine carrying frame comprises a fixed part, a connecting part and a rotating part, the rotating part is arranged above the fixed part and can rotate relative to the fixed part, the connecting part is arranged between the fixed part and the rotating part and is used for supporting and rotatably connecting the rotating part above the fixed part, the lower end of the connecting part is fixedly connected with the fixed part, the upper end of the connecting part is fixedly connected with the rotating part, the rotating part can rotate around the central axis of the connecting part relative to the fixed part, the fixing part is fixedly arranged on the first carrying vehicle, and the second bridge girder erection machine carrying frame is arranged on the second carrying vehicle and used for carrying one end of the bridge girder erection machine, so that the bridge girder erection machine rotates around the central axis of the connecting part under the support of the first bridge girder erection machine carrying frame and the carrying of the second bridge girder erection machine carrying frame.
The complete machine in-situ turning device of the bridge girder erection machine is characterized in that the fixing part comprises a base and an annular rail, the annular rail is fixedly installed on the upper surface of the base, and the base is fixedly connected with the first carrier loader and used for supporting the annular rail.
The whole bridge girder erection machine in-situ turning device is characterized in that the connecting part comprises a tower frame base and a rotating connector, the rotating connector is mounted on the upper portion of the tower frame base and can rotate around the central axis of the connecting part, and the bottom of the tower frame base is fixed on a first carrier loader.
The complete machine in-situ turning device of the bridge girder erection machine is characterized in that the turning part comprises a first shoulder pole beam, a first side supporting column and a second side supporting column, the upper end of the first side supporting column is fixedly connected with the lower part of one end of the first shoulder pole beam, the lower end of the first side supporting column is in rolling contact with the annular track, the upper end of the second side supporting column is fixedly connected with the lower part of the other end of the first shoulder pole beam, and the lower end of the second side supporting column is in rolling contact with the annular track.
The whole bridge girder erection machine in-situ turning device is characterized in that the first side supporting column and the second side supporting column are identical in structure and comprise a supporting column and a bearing trolley, the upper end of the supporting column is fixedly connected with the lower portion of one end of a first carrying pole beam, the lower end of the supporting column is fixedly connected with the upper end of the bearing trolley, a walking wheel of the bearing trolley is in contact with an annular rail and can roll back and forth along the annular rail in a matched mode with the rail surface of the annular rail, and the supporting column is formed by splicing a plurality of short columns which are identical in structure and length or different in detachable mode.
The whole bridge girder erection machine in-situ turning device is characterized in that the turning part further comprises a reinforcing pull rod and a limit stop, one end of the reinforcing pull rod is hinged to the bottom of the first carrying pole beam, the other end of the reinforcing pull rod is hinged to the support, and the limit stop is fixedly arranged on the upper surface of the first carrying pole beam and used for limiting a bridge girder erection machine placed on the first carrying pole beam.
The whole in-situ turning device of the bridge girder erection machine is characterized in that the fixing part further comprises an adjusting support column, the adjusting support column comprises an adjusting column, a supporting height adjusting device and a supporting bottom plate, the top of the adjusting column is fixedly connected with the bottom of the base, the supporting bottom plate is arranged below the adjusting column, the supporting height adjusting device is arranged between the adjusting column and the supporting bottom plate and enables the adjusting column to form a support for the base through the distance from the bottom of the adjusting column to the supporting bottom plate, the number of the adjusting support columns is multiple, and the adjusting support columns are uniformly distributed below the base.
The whole in-situ turning device of the bridge girder erection machine is characterized in that the second bridge girder erection machine carrier comprises two fixing towers, two carrying pole beams and two carrying pole beam support columns, the second carrying pole beam is horizontally arranged and located above the fixing towers, the top of each fixing tower is fixedly connected with the lower surface of the middle of the second carrying pole beam, the two carrying pole beam support columns are respectively arranged below the left end and the right end of the second carrying pole beam and used for supporting the left end and the right end of the second carrying pole beam, the bottom of each fixing tower is fixedly installed on a second carrier loader, the two carrying pole beam support columns are vertically arranged, and the two carrying pole beam support columns are fixedly connected with the second carrier loader.
The bridge girder erection machine complete machine in-situ turning device is characterized by further comprising a distance measuring mechanism, wherein the distance measuring mechanism comprises a first fixed pulley, a second fixed pulley, a third fixed pulley, a weight block, a pull wire and a scale mark line, the first fixed pulley is arranged on the side wall of the middle part of a second carrying pole beam, the first fixed pulley is perpendicular to the installation surface of the first fixed pulley, the second fixed pulley is arranged on a second carrying vehicle, the second fixed pulley and the first fixed pulley are perpendicular to each other, the third fixed pulley and the first fixed pulley are arranged on the same side surface of the second carrying pole beam, the third fixed pulley is positioned on one side of the second carrying pole beam, one end of the pull wire is fixed on the turning part, the other end of the pull wire sequentially penetrates through the first fixed pulley, the second fixed pulley and the third fixed pulley and is fixedly connected with the weight block, and can hang the weight block below the third fixed pulley, the scale mark line is arranged on the second bridge erecting machine carrying frame close to the heavy block along the vertical direction.
The invention also discloses a complete machine in-situ turning method of the bridge girder erection machine, which is characterized by comprising the following steps:
step one, selecting a turning field of a bridge girder erection machine, planning a field set by a first carrier vehicle and a field where a second carrier vehicle travels, rolling and leveling the fields, and marking a sideline of a traveling path of the second carrier vehicle in the field where the second carrier vehicle travels;
step two, carrying the bridge girder erection machine into a designated position;
step three, assembling the complete machine in-situ turning device of the bridge girder erection machine on site;
fourthly, supporting and leveling the annular track by adjusting the adjusting support;
driving a second carrying vehicle, and aligning after the rotating vehicle body is perpendicular to the bridge girder erection machine arm and enters the lower part of the double arms of the bridge girder erection machine;
step six, the bridge girder erection machine shrinks each supporting leg, and the two arms of the bridge girder erection machine are lowered, so that one end of the two arms of the bridge girder erection machine is firmly placed on the first shoulder-pole beam, the other end of the two arms of the bridge girder erection machine is firmly placed on the second shoulder-pole beam, and the supporting legs of the bridge girder erection machine are emptied;
seventhly, driving a second carrier vehicle, marking a traveling path sideline of the second carrier vehicle along the field, slowly advancing at a speed less than or equal to 0.5km/h, paying attention to the relative position change of the weight and the scale mark line in the distance measuring mechanism at any time in the advancing process, and adjusting the direction in time;
step eight, after the second carrier loader reaches the end point of the semicircular travelling path of the second carrier loader, the bridge girder erection machine stands each supporting leg, and the bridge girder erection machine lifts the two arms of the bridge girder erection machine to leave the first shoulder-pole beam and the second shoulder-pole beam;
and step nine, releasing the support of the adjusting support column of the first carrying vehicle, driving the first carrying vehicle to carry the first bridge girder erection machine with the first carrying vehicle, and driving the second carrying vehicle to carry the second bridge girder erection machine with the second carrying vehicle to leave the field, thereby completing the complete machine turning of the bridge girder erection machine.
Compared with the prior art, the invention has the following advantages:
1. the invention has the advantages that the whole machine rotates when the steering is carried out, the disassembly and the reassembly are not needed, the head rotating work efficiency is improved, the head rotating time is shortened, the labor intensity of field staff is reduced, and the cost of renting hoisting equipment is saved.
2. When the invention is turned, the occupied area is small; the area of the field required by the traditional automobile carrying and turning around is as follows: 100 x 100 ═ 10000m2The device only needs 30 × 30 to 900m2Is 1/10 of the traditional field area.
3. The invention has the advantages of high speed and high efficiency.
4. The rotating process of the invention is safe and stable, and the tower frame base and the rotating connector of the connecting part of the invention are connected by the turntable bearing, so the rotation is flexible; the bottoms of two side support columns at two ends of a first shoulder pole beam are in rolling contact with an annular track, and the first shoulder pole beam is supported and protected in the whole process in the process of turning; according to the invention, the annular track and the first carrier loader are stably supported by the adjusting support, and the distance measuring mechanism is installed for monitoring in the whole process, so that the whole turning process is safer and more stable.
The invention is described in further detail below with reference to the figures and examples.
Drawings
FIG. 1 is a schematic diagram of the position relationship between the complete machine in-situ turning device of the bridge girder erection machine and the structure of the bridge girder erection machine.
Fig. 2 is a schematic view of the turning process of the bridge girder erection machine.
3 fig. 33 3 is 3 a 3 sectional 3 view 3 a 3- 3 a 3 of 3 fig. 31 3. 3
Fig. 4 is a sectional view B-B of fig. 1.
FIG. 5 is a schematic view of the structure of the connecting portion of the present invention.
Description of reference numerals:
1-a first carrier vehicle; 2-a second carrier vehicle; 3, a bridge girder erection machine;
100-carrying the first bridge girder erection machine; 110-a fixed part;
111-a base; 112-an annular track; 113-adjusting the support;
113-1-adjustment column; 113-2 supporting height adjusting means;
113-3-support floor; 120-a connecting portion; 121-a tower mount;
122-a rotating connector; 130-a rotating part; 131-a first shoulder pole beam;
132 — first side support column; 132-1-strut; 132-2 — load-carrying cart;
133-second side support column; 134-reinforcement tie rod; 135-limit stop;
200-carrying the second bridge girder erection machine; 210 — a fixed tower;
220-second shoulder pole beam; 230-carrying pole beam support column; 301 — a first fixed pulley;
302 — a second fixed pulley; 303 — a third fixed sheave; 304-weights;
305-pulling a wire; 306-Scale marking.
Detailed Description
Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but rather are provided for a more thorough and complete understanding of the present invention. It should be understood that the drawings and the embodiments of the present invention are illustrative only and are not intended to limit the scope of the present invention.
It should be noted that the first, second and the like concepts mentioned in the present invention are only used for distinguishing different devices, modules or units, and are not used for limiting the order of functions executed by the devices, modules or units or the interdependence relationship.
It should be noted that the terms top, bottom, upward, downward and the like in the present invention are defined with respect to the directions in the respective drawings, they are relative concepts, and thus can be changed according to the different positions and different practical states in which they are located. These and other directional terms should not be construed as limiting.
It is noted that the modifications noted in the disclosure, where one or more is/are indicated as being illustrative and not limiting, will be understood by those skilled in the art to mean one or more unless the context clearly dictates otherwise.
As shown in fig. 1 to 4, the present invention discloses a complete machine in-situ turning device for a bridge erecting machine, which comprises: the first bridge girder erection machine carrier 100 comprises a fixed part 110, a connecting part 120 and a rotating part 130, the rotating part 130 is arranged above the fixed part 110 and can rotate relative to the fixed part 110, the connecting part 120 is arranged between the fixed part 110 and the rotating part 130 and is used for supporting and rotatably connecting the rotating part 130 above the fixed part 110, the lower end of the connecting part 120 is fixedly connected with the fixed part 110, an upper end rotating connector 122 of the connecting part 120 is fixedly connected with the rotating part 130, the rotating part 130 can rotate relative to the fixed part 110 around the central axis of the connecting part 120, the fixed part 110 is fixedly arranged on the first bridge girder erection machine carrier 1, the second bridge girder erection machine carrier 200 is arranged on the second bridge girder erection machine carrier 2 and is used for carrying one end of the bridge girder erection machine 3, so that the bridge girder erection machine 3 supports the bridge girder erection machine carrier 100 and winds the second bridge girder erection machine carrier 200 around the fixed part 110 Rotating along the central axis of the connecting portion 120.
In this embodiment, the first bridge girder erection machine carrier 100 is installed on the first carrier vehicle 1, the second bridge girder erection machine carrier 200 is installed on the second carrier vehicle 2, the bridge girder erection machine 3 is carried up by the first bridge girder erection machine carrier 100 and the second bridge girder erection machine carrier 200, the first carrier vehicle 1 stops, the second carrier vehicle 2 performs circular arc motion by taking the distance between the first carrier vehicle 1 and the second carrier vehicle 2 as a radius, the bridge girder erection machine 3 rotates around the central axis of the connecting part 120, and when the second carrier vehicle 2 travels 1/2 of a circle, the bridge girder erection machine 3 completes the turn. The turning device can realize turning of the bridge girder erection machine 3 through the two carrying vehicles and the carrying frame arranged on the carrying vehicles, the bridge girder erection machine 3 does not need to be disassembled, and the turning speed and the efficiency are high.
As shown in fig. 3, the fixing portion 110 includes a base 111 and an annular rail 112, the annular rail 112 is fixedly mounted on an upper surface of the base 111, and the base 111 is fixedly connected with the first vehicle 1 and is used for supporting the annular rail 112.
As shown in fig. 3 and 5, the connecting portion 120 includes a tower base 121 and a rotating connector 122, the rotating connector 122 is mounted on the upper portion of the tower base 121 and can rotate around the central axis of the connecting portion 120, and the bottom of the tower base 121 is fixed on the first carrier vehicle 1. The central axis of the connecting portion 120 is perpendicular to the plane of the rail surface of the circular rail 112, and the central axis of the connecting portion 120 passes through the center of the circular rail 112. The top of the rotary connector 122 is fixedly connected with the middle of the lower surface of the first carrying pole beam 131.
In this embodiment, the tower base 121 and the rotating connector 122 are rotatably connected by a turntable bearing, a combination bearing or a tapered roller bearing. The rotary joint 122 is flexible to rotate relative to the tower base 121 and can well bear forces in the vertical direction and the horizontal direction. The rotary connector 122 may be a rotary core disc with a disc structure.
As shown in fig. 3, the rotating unit 130 includes a first carrying pole beam 131, a first side supporting pole 132, and a second side supporting pole 133, an upper end of the first side supporting pole 132 is fixedly connected to a lower portion of one end of the first carrying pole beam 131, a lower end of the first side supporting pole 132 is in rolling contact with the circular rail 112, an upper end of the second side supporting pole 133 is fixedly connected to a lower portion of the other end of the first carrying pole beam 131, a lower end of the second side supporting pole 133 is in rolling contact with the circular rail 112,
as shown in fig. 3, the first side supporting pillar 132 and the second side supporting pillar 133 have the same structure and both include a pillar 132-1 and a carrying trolley 132-2, the upper end of the pillar 132-1 is fixedly connected with the lower portion of one end of the first carrying pole beam 131, the lower end of the pillar 132-1 is fixedly connected with the upper end of the carrying trolley 132-2, the traveling wheel of the carrying trolley 132-2 is in contact with the circular track 112 and is matched with the rail surface of the circular track 112 to be capable of rolling back and forth along the circular track 112, and the pillar 132-1 is formed by detachably splicing a plurality of short pillars having the same structure and length or different structures.
In this embodiment, the short column is prepared by cutting a steel pipe into equal lengths or different lengths and then welding flanges at both ends of the steel pipe. The struts are butted in turn and bolted to adjacent flanges to form a strut 132-1, and the first side support 132 and the second side support 133 support both ends of the first spreader beam 131. Meanwhile, the lower ends of the first and second side support posts 132 and 133 can roll along the circular rail 112, and rotate along with the first carrying pole beam 131 during the turning of the bridge girder erection machine 3.
As shown in fig. 3, the rotating portion 130 further includes a reinforcing pull rod 134 and a limit stopper 135, wherein one end of the reinforcing pull rod 134 is hinged to the bottom of the first carrying pole beam 131, the other end of the reinforcing pull rod 134 is hinged to the pillar 132-1, and the limit stopper 135 is fixedly disposed on the upper surface of the first carrying pole beam 131 and is used for limiting the bridge girder erection machine 3 placed on the first carrying pole beam 131.
In this embodiment, the reinforcing tie bar 134 reinforces and supports the first side supporting pillar 132 and the second side supporting pillar 133, so that the carrying capacity and stability of the first side supporting pillar 132 and the second side supporting pillar 133 are enhanced, and the first bridge-erecting piggyback rack 100 is more stable and safer during operation. The limit stopper 135 is provided on the first carrying pole beam 131 to position the bridge girder erection machine 3, and also to prevent the bridge girder erection machine 3 from sliding on the first carrying pole beam 131 during the turning process, thereby reducing the occurrence of safety accidents.
As shown in fig. 3, the fixing portion 110 further includes an adjusting strut 113, the adjusting strut 113 includes an adjusting column 113-1, a supporting height adjusting device 113-2 and a supporting base plate 113-3, the top of the adjusting column 113-1 is fixedly connected to the bottom of the base 111, the supporting base plate 113-3 is disposed below the adjusting column 113-1, the supporting height adjusting device 113-2 is disposed between the adjusting column 113-1 and the supporting base plate 113-3, and the adjusting column 113-1 forms a support for the base 111 by adjusting the distance between the bottom of the adjusting column 113-1 and the supporting base plate 113-3, the number of the adjusting struts 113 is multiple, and the adjusting struts 113 are uniformly disposed below the base 111.
In this embodiment, a plurality of the adjusting pillars 113 are located on the same circumference under the base 111. The supporting height adjusting device 113-2 is a set of screw nut pair, the upper end of the screw penetrates into the adjusting column 113-1, the lower end of the screw is connected with the supporting bottom plate 113-3, the screw nut is sleeved on the screw and is positioned below the adjusting column 113-1, the upper end of the screw nut is abutted against the lower end of the adjusting column 113-1, and the distance between the bottom of the adjusting column 113-1 and the supporting bottom plate 113-3 can be adjusted by adjusting the position of the screw nut on the screw nut.
As shown in fig. 4, the second bridge-erecting piggyback 200 includes a fixed tower 210, a second carrying pole beam 220 and two carrying pole beam support columns 230, the second carrying pole beam 220 is horizontally disposed and located above the fixed tower 210, the top of the fixed tower 210 is fixedly connected to the lower surface of the middle of the second carrying pole beam 220, the number of the carrying pole beam support columns 230 is two, the two carrying pole beam support columns 230 are respectively disposed below the left and right ends of the second carrying pole beam 220 and are used for supporting the left and right ends of the second carrying pole beam 220, the bottom of the fixed tower 210 is fixedly mounted on the second carrier vehicle 2, the two carrying pole beam support columns 230 are vertically disposed, and the two carrying pole beam support columns 230 are both fixedly connected to the second carrier vehicle 2.
As shown in fig. 4, the complete in-situ turning device of the bridge girder erection machine further comprises a distance measuring mechanism, the distance measuring mechanism comprises a first fixed pulley 301, a second fixed pulley 302, a third fixed pulley 303, a weight 304, a pull wire 305 and a scale mark 306, the first fixed pulley 301 is mounted on the side wall of the middle part of the second carrying pole beam 220, the first fixed pulley 301 is perpendicular to the mounting surface of the first fixed pulley, the second fixed pulley 302 is mounted on the second carrying vehicle 2, the second fixed pulley 302 and the first fixed pulley 301 are perpendicular to each other, the third fixed pulley 303 and the first fixed pulley 301 are mounted on the same side surface of the second carrying pole beam 220, the third fixed pulley 303 is located on one side of the second carrying pole beam 220, one end of the pull wire 305 is fixed on the turning part 130, the other end of the pull wire 305 sequentially passes through the first fixed pulley 301, the second fixed pulley 302 and the third fixed pulley 303 and then is fixedly connected with the weight 304, the weight 304 is suspended below the third fixed pulley 303, and the scale mark 306 is vertically arranged on the second bridge-erecting piggyback frame 200 at a position close to the weight 304.
In this embodiment, the scale markings 306 of the distance measuring mechanism are disposed on the shoulder pole beam support column 230, during the turning process of the bridge girder erection machine 3, the first carrier vehicle 1 and the first bridge girder erection machine piggyback frame 100 are disposed in situ and fixed, the second bridge girder erection machine piggyback frame 200 and the bridge girder erection machine 3 carried by the second carrier vehicle 2 perform circular motion around the first carrier vehicle 1, the distance between the first carrier vehicle 1 and the second carrier vehicle 2 is a fixed value due to the limitation of the bridge girder erection machine 3, and if the distance between the first carrier vehicle 1 and the second carrier vehicle 2 becomes larger or smaller during the turning process, the stability of the turning is affected, and safety accidents are easily caused. After installing ranging mechanism, when the distance between first carrier loader 1 and the second carrier loader 2 grow, first carrier loader 1 pulls act as go-between 305, act as go-between 305 through first fixed pulley 301, second fixed pulley 302 and third fixed pulley 303 pulling weight 304 rebound, through scale marking 306 operating personnel on the second carrier loader 2 just can in time discover the change of distance between first carrier loader 1 and the second carrier loader 2, in time make the adjustment, prevent the emergence of incident. Conversely, when the distance between the first vehicle 1 and the second vehicle 2 becomes smaller, the weight 304 moves downward.
In this embodiment, the pull wire 305 is a thin steel wire rope, and the first carrier loader 1 and the second carrier loader 2 are both tire type girder loaders.
As shown in fig. 1 and fig. 2, the invention also discloses a complete machine in-situ turning method of the bridge girder erection machine, which comprises the following steps: the head turning method is characterized by comprising the following steps:
step one, selecting a turning field of the bridge girder erection machine, planning a field set by a first carrier loader 1 and a field where a second carrier loader 2 travels, rolling and leveling the fields, and marking a sideline of a traveling path of the second carrier loader 2 in the field where the second carrier loader 2 travels;
step two, carrying the bridge girder erection machine 3 into a designated position;
step three, assembling the complete machine in-situ turning device of the bridge girder erection machine on site;
step four, supporting and leveling the annular rail 112 by adjusting the support posts 113;
step five, driving the second carrier loader 2, rotating the vehicle body to be vertical to the arm of the bridge girder erection machine 3, entering the lower part of the double arms of the bridge girder erection machine 3, and aligning;
step six, the bridge girder erection machine 3 contracts all the supporting legs, and the two arms of the bridge girder erection machine 3 are descended, so that the two arms of the bridge girder erection machine 3 are firmly placed on the first shoulder-pole beam 131 and the second shoulder-pole beam 220, and the supporting legs of the bridge girder erection machine 3 are emptied;
seventhly, driving the second carrier vehicle 2, marking a traveling path sideline of the second carrier vehicle 2 along the field, slowly advancing at a speed v less than or equal to 0.5km/h, paying attention to the relative position change of the weight 304 and the scale mark 306 in the distance measuring mechanism at any time in the advancing process, and adjusting the direction in time;
step eight, after the second carrier loader 2 reaches the end point of the semicircular travelling path, the bridge girder erection machine 3 supports each supporting leg, and the bridge girder erection machine 3 lifts the double arms of the bridge girder erection machine 3 to leave the first shoulder pole beam 131 and the second shoulder pole beam 220;
and step nine, releasing the support of the adjusting support 113 of the first carrier loader 1, driving the first carrier loader 1 to carry the first bridge girder erection machine carrier 100, and driving the second carrier loader 2 to carry the second bridge girder erection machine carrier 200 to leave the field, and completing the complete machine turning of the bridge girder erection machine 3.
The invention uses two girder transporting vehicles to carry the frame, and the bridge girder erection machine 3 with both arms and all the accessory mechanisms thereof are the complete machine in the shortest distance. One of the beam transporting vehicles is fixed, a shoulder pole beam of the beam transporting vehicle is provided with a protective side bearing support, and a bearing trolley at the lower part of the beam transporting vehicle can roll and protect along the whole process of the annular track in the process of turning; the other girder transporting vehicle body rotates 90 degrees, and the shoulder pole beam is provided with a protection support and distance measuring mechanism. After the girder transporting vehicle travels half a circle on the ground along the identification line, the whole bridge girder erection machine 3 loaded on the girder transporting vehicle rotates 180 degrees, and the turning of the whole bridge girder erection machine is completed.
The turning device has the characteristics of small occupied area, flexible turning, comprehensive safety protection, simple operation and high turning efficiency. In the construction of a newly-built single-line seamless line, two in-situ steering is carried out, the turning of the whole machine is safely and smoothly completed within 1 hour, 25 minutes and 56 minutes respectively, and the turning time is greatly shortened.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a bridging machine complete machine pivot device in situ which characterized in that includes: the first carrying vehicle (1), the second carrying vehicle (2), the first bridge-erecting machine-carried frame (100) and the second bridge-erecting machine-carried frame (200), wherein the first bridge-erecting machine-carried frame (100) comprises a fixed part (110), a connecting part (120) and a rotating part (130), the rotating part (130) is arranged above the fixed part (110) and can rotate relative to the fixed part (110), the connecting part (120) is arranged between the fixed part (110) and the rotating part (130) and is used for supporting and rotationally connecting the rotating part (130) above the fixed part (110), the lower end of the connecting part (120) is fixedly connected with the fixed part (110), the upper end of the connecting part (120) is fixedly connected with the rotating part (130), the rotating part (130) can rotate relative to the fixed part (110) around the central axis of the connecting part (120), the fixed part (110) is fixedly arranged on the first carrying vehicle (1), the second bridge girder erection machine carrying frame (200) is arranged on the second carrying vehicle (2) and is used for carrying one end of the bridge girder erection machine (3) so that the bridge girder erection machine (3) rotates around the central axis of the connecting part (120) under the support of the first bridge girder erection machine carrying frame (100) and the carrying of the second bridge girder erection machine carrying frame (200).
2. The complete machine in-situ turning device of the bridge girder erection machine according to claim 1, wherein the fixing part (110) comprises a base (111) and an annular rail (112), the annular rail (112) is fixedly installed on the upper surface of the base (111), and the base (111) is fixedly connected with the first carrier vehicle (1) and is used for supporting the annular rail (112).
3. The complete machine in-situ turning device of the bridge erecting machine according to claim 1, wherein the connecting part (120) comprises a tower base (121) and a turning connector (122), the turning connector (122) is mounted at the upper part of the tower base (121) and can rotate around the central axis of the connecting part (120), and the bottom of the tower base (121) is fixed on the first carrier vehicle (1).
4. The in-situ swivel device of the whole bridge girder erection machine according to claim 2 or 3, wherein the rotating part (130) comprises a first shoulder-pole beam (131), a first side supporting column (132) and a second side supporting column (133), the upper end of the first side supporting column (132) is fixedly connected with the lower part of one end of the first shoulder-pole beam (131), the lower end of the first side supporting column (132) is in rolling contact with the annular rail (112), the upper end of the second side supporting column (133) is fixedly connected with the lower part of the other end of the first shoulder-pole beam (131), and the lower end of the second side supporting column (133) is in rolling contact with the annular rail (112).
5. The complete machine in-situ turning device of the bridge girder erection machine as claimed in claim 4, wherein the first side support column (132) and the second side support column (133) have the same structure and both comprise a support column (132-1) and a carrying trolley (132-2), the upper end of the support column (132-1) is fixedly connected with the lower part of one end of the first carrying pole beam (131), the lower end of the support column (132-1) is fixedly connected with the upper end of the carrying trolley (132-2), the travelling wheel of the carrying trolley (132-2) is in contact with the annular track (112), the travelling wheel is matched with the track surface of the annular track (112) and can roll back and forth along the annular track (112), and the support column (132-1) is formed by detachably splicing a plurality of short columns with the same structure and the same or different lengths.
6. The in-situ turning device for the whole bridge girder erection machine is characterized in that the turning part (130) further comprises a reinforcing pull rod (134) and a limit stop (135), wherein one end of the reinforcing pull rod (134) is hinged with the bottom of the first carrying pole beam (131), the other end of the reinforcing pull rod (134) is hinged with the pillar (132-1), and the limit stop (135) is fixedly arranged on the upper surface of the first carrying pole beam (131) and is used for limiting the bridge girder erection machine (3) placed on the first carrying pole beam (131).
7. The in-situ turning device of the whole bridge girder erection machine according to claim 6, wherein the fixing part (110) further comprises an adjusting pillar (113), the adjusting pillar (113) comprises an adjusting pillar (113-1), a supporting height adjusting device (113-2) and a supporting base plate (113-3), the top of the adjusting pillar (113-1) is fixedly connected with the bottom of the base (111), the supporting base plate (113-3) is arranged below the adjusting pillar (113-1), the supporting height adjusting device (113-2) is arranged between the adjusting pillar (113-1) and the supporting base plate (113-3) and the adjusting pillar (113-1) forms a support for the base (111) by adjusting the distance between the bottom of the adjusting pillar (113-1) and the supporting base plate (113-3), the number of the adjusting support columns (113) is multiple, and the adjusting support columns (113) are uniformly distributed below the base (111).
8. The complete machine in-situ turning device of the bridge girder erection machine according to claim 1, the second bridge-erecting piggyback rack (200) comprises a fixed tower (210), a second shoulder pole beam (220) and a shoulder pole beam supporting column (230), the second shoulder pole beam (220) is horizontally arranged and positioned above the fixed tower (210), the top of the fixed tower (210) is fixedly connected with the lower surface of the middle part of the second carrying pole beam (220), the number of the shoulder pole beam supporting columns (230) is two, the two shoulder pole beam supporting columns (230) are respectively arranged below the left end and the right end of the second shoulder pole beam (220) and are used for supporting the left end and the right end of the second shoulder pole beam (220), the bottom of the fixed tower (210) is fixedly arranged on the second carrier loader (2), the two carrying pole beam supporting columns (230) are vertically arranged, and the two carrying pole beam supporting columns (230) are fixedly connected with the second carrying vehicle (2).
9. The in-situ turning device of the whole bridge girder erection machine is characterized by further comprising a distance measuring mechanism, wherein the distance measuring mechanism comprises a first fixed pulley (301), a second fixed pulley (302), a third fixed pulley (303), a weight (304), a pull line (305) and a scale mark line (306), the first fixed pulley (301) is arranged on the side wall of the middle part of the second carrying pole beam (220), the first fixed pulley (301) is perpendicular to the installation surface of the first fixed pulley (301), the second fixed pulley (302) is arranged on the second carrying vehicle (2), the second fixed pulley (302) is perpendicular to the first fixed pulley (301), the third fixed pulley (303) and the first fixed pulley (301) are arranged on the same side surface of the second carrying pole beam (220), and the third fixed pulley (303) is positioned on one side of the second carrying pole beam (220), one end of the pull wire (305) is fixed on the rotating part (130) of the first bridge erecting machine packing frame (100), the other end of the pull wire (305) sequentially passes through the first fixed pulley (301), the second fixed pulley (302) and the third fixed pulley (303) and then is fixedly connected with the weight (304) and can hang the weight (304) below the third fixed pulley (303), and the scale mark line (306) is arranged on the second bridge erecting machine packing frame (200) in the vertical direction and is close to the weight (304).
10. A bridge girder erection machine complete machine in-situ turning method is characterized by comprising the following steps:
step one, selecting a turning field of a bridge girder erection machine (3), planning a field set by a first carrier loader (1) and a field where a second carrier loader (2) advances, rolling and leveling the fields, and marking a side line of a advancing path of the second carrier loader (2) in the field where the second carrier loader (2) advances;
step two, carrying the bridge girder erection machine (3) into a designated position;
step three, assembling the complete machine in-situ turning device of the bridge girder erection machine on site;
fourthly, supporting and leveling the annular track (112) by adjusting the adjusting support column (113);
driving a second carrying vehicle (2), enabling a rotating vehicle body to be perpendicular to the arm of the bridge girder erection machine (3), entering the lower part of the double arms of the bridge girder erection machine (3), and aligning;
step six, the bridge girder erection machine (3) contracts all the supporting legs and lowers the two arms of the bridge girder erection machine (3) so that one end of the two arms of the bridge girder erection machine (3) is firmly placed on the first shoulder-pole beam (131) and the other end of the two arms of the bridge girder erection machine (3) is firmly placed on the second shoulder-pole beam (220), and the supporting legs of the bridge girder erection machine (3) are emptied;
seventhly, driving the second carrier vehicle (2), marking a traveling path sideline of the second carrier vehicle (2) along the field, slowly advancing at a speed less than or equal to 0.5km/h, paying attention to the relative position change of a weight (304) and a scale mark line (306) in the distance measuring mechanism at any time in the advancing process, and adjusting the direction in time;
step eight, after the second carrier loader (2) reaches the end point of the semicircular travelling path of the second carrier loader (2), the bridge girder erection machine (3) stands each supporting leg, and the bridge girder erection machine (3) lifts two arms of the bridge girder erection machine (3) to leave the first shoulder pole beam (131) and the second shoulder pole beam (220);
and ninthly, releasing the support of the adjusting strut (113) of the first carrying vehicle (1), driving the first carrying vehicle (1) to carry the first bridge girder erection machine carrying frame (100) and the second carrying vehicle (2) to carry the second bridge girder erection machine carrying frame (200) to leave the field, and completing the complete machine turning of the bridge girder erection machine (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010836039.2A CN111945574A (en) | 2020-08-19 | 2020-08-19 | Bridge girder erection machine complete machine in-situ turning device and turning method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010836039.2A CN111945574A (en) | 2020-08-19 | 2020-08-19 | Bridge girder erection machine complete machine in-situ turning device and turning method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113186834A (en) * | 2021-05-17 | 2021-07-30 | 中铁十二局集团有限公司 | Rotary turning device and turning method of girder transporting vehicle of bridge girder erection machine |
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2020
- 2020-08-19 CN CN202010836039.2A patent/CN111945574A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113186834A (en) * | 2021-05-17 | 2021-07-30 | 中铁十二局集团有限公司 | Rotary turning device and turning method of girder transporting vehicle of bridge girder erection machine |
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