CN213896790U - Main support leg longitudinal fixing device of bridge girder erection machine - Google Patents
Main support leg longitudinal fixing device of bridge girder erection machine Download PDFInfo
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- CN213896790U CN213896790U CN202022543723.XU CN202022543723U CN213896790U CN 213896790 U CN213896790 U CN 213896790U CN 202022543723 U CN202022543723 U CN 202022543723U CN 213896790 U CN213896790 U CN 213896790U
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Abstract
The utility model discloses a main supporting leg longitudinal fixing device of bridge girder erection machine, including the girder, the girder includes two auxiliary beams that are parallel to each other, and the middle part of auxiliary beam is installed with the main supporting leg, the middle part swivel mount of main supporting leg is in under the auxiliary beam, the middle part of the roof of middle part swivel mount is fixed with a plurality of lower fixing bases, and the bottom surface of the middle part transverse beam of auxiliary beam is fixed with a plurality of upper fixing bases; the upper fixing seat and the lower fixing seat are both hinged with connecting blocks, and long through holes are formed in the middle of the connecting blocks; a movable adjustable structure is adopted between a long pull rod and an auxiliary beam, so that the use of the bridge girder erection machine with flexibly connected main supporting legs and auxiliary beams is met.
Description
The technical field is as follows:
the utility model relates to a road bridge equipment technical field, more specifically the main landing leg longitudinal fixity device that relates to a bridging machine that says so.
Background art:
in the existing bridge erecting machine, two rotating mechanism bases are placed on a main transverse girder of a main supporting leg, a middle rotating frame is arranged on each rotating mechanism base, a reverse roller mechanism is arranged on the middle rotating frame, the reverse roller mechanism is arranged on an auxiliary girder of the main girder, when the main supporting leg supports the main girder, because the contact area between the main supporting leg and the auxiliary girder of the main girder is small, when the bridge erecting machine is used, a pull rod is required to be arranged below the auxiliary girder of the main girder, one end of the pull rod is fixed on the bottom surface of the auxiliary girder on the left side or the right side of the main supporting leg, and the other end of the pull rod is fixed on the main supporting leg, so that the supporting force and the pulling force of the main supporting leg to the main girder are increased, the bridge erecting machine is generally suitable for a hard connection structure between the main supporting leg and the main girder, when the main supporting leg and the main girder adopt flexible connection, namely, the top of the main supporting leg is hinged with a balance beam, and is pressed on the bottom surface of the auxiliary girder through a lifting block on the balance beam to realize the support, the balance beam can swing left and right to finely adjust according to the relation between the main supporting leg and the auxiliary beam, and due to the adoption of the structure, the pull rod device cannot be connected in an original fixing mode, and an original hard-fixed pull rod cannot be used.
The utility model has the following contents:
the utility model aims at providing a main landing leg vertical fixation device of frame bridge crane to the not enough of prior art, adopt movable adjustable structure between its microscler pull rod and the auxiliary girder to satisfy main landing leg and auxiliary girder and be the frame bridge crane use of flexonics formula.
The technical solution of the utility model is as follows:
a longitudinal fixing device for a main supporting leg of a bridge girder erection machine comprises a main girder, wherein the main girder comprises two auxiliary girders which are parallel to each other, the middle parts of the auxiliary girders are provided with the main supporting leg, a middle rotating frame of the main supporting leg is positioned under the auxiliary girders, the middle part of a top plate of the middle rotating frame is fixedly provided with a plurality of lower fixing seats, and the bottom surface of a middle transverse girder of the auxiliary girder is fixedly provided with a plurality of upper fixing seats;
the upper fixing seat and the lower fixing seat are both hinged with connecting blocks, and long through holes are formed in the middle of the connecting blocks;
part of the upper fixing seats on the auxiliary beam are positioned above the left side of the lower fixing seat, and the other part of the upper fixing seats on the auxiliary beam are positioned above the right side of the lower fixing seat;
the upper part of the long pull rod is inserted and sleeved in the long through hole in the connecting block of the corresponding upper fixing seat, and the upper end of the long pull rod extends out of the long through hole and is fixed with a limiting piece;
the lower part of the long pull rod is inserted and sleeved in the long through hole in the connecting block of the corresponding lower fixing seat, and the lower end of the long pull rod extends out of the corresponding long through hole and is fixed with a limiting piece.
Further, the lower fixing base comprises a lower fixing plate, lower vertical plates are fixed on the front portion and the rear portion of the top surface of the lower fixing plate, hinge shaft portions are formed at the front end and the rear end of each connecting block, the hinge shaft portions are inserted in corresponding jacks formed in the lower vertical plates in a sleeved mode, and the lower fixing plate is fixedly welded or fixedly connected to a top plate of the middle rotating frame through bolts.
Furthermore, one side wall surface of the connecting block is a plane, the rest are arc-shaped wall surfaces, and one end of the long through hole extends out of the connecting block to form the planar wall surface.
Furthermore, the two ends of the long pull rod are respectively formed with a screwing part, and the screwing parts extend out of the corresponding long through holes and are screwed with limiting parts.
Further, the limiting part is an adjusting nut.
Further, go up the fixing base and include an upper fixed plate, an upper fixed plate passes through bolt fixed connection on the bottom surface of the horizontal roof beam in middle part that corresponds, both sides all are fixed with vertical board in the front and back of an upper fixed plate's bottom surface, and both ends shaping has articulated axial region around the connecting block, and articulated axial region plug bush is in some jacks of shaping on the vertical board of last that corresponds.
Furthermore, two lower fixing seats which are parallel to each other in the front and the back are fixed in the middle of the top plate of the middle rotating frame;
an upper fixing seat is fixed on the bottom surface of the middle transverse beam corresponding to the upper portion of the left side or the upper portion of the right side of the lower fixing seat, and the central axis of the long through hole of the connecting block of the upper fixing seat and the central axis of the long through hole of the connecting block of the corresponding lower fixing seat are located on the same vertical plane.
The beneficial effects of the utility model reside in that:
a movable adjustable structure is adopted between a long pull rod and an auxiliary beam, so that the use of the bridge girder erection machine with flexibly connected main supporting legs and auxiliary beams is met.
Description of the drawings:
fig. 1 is a schematic view of a partial simple structure between the present invention and a secondary beam;
FIG. 2 is a schematic view of a partial simplified structure between a middle rotating frame and a secondary beam with a balance beam;
fig. 3 is a partial cross-sectional view between the main beam and the main leg of the present invention;
fig. 4 is a schematic view of a partial structure of the upper fixing seat of the present invention;
fig. 5 is a schematic view of a partial structure of the lower fixing seat of the present invention;
fig. 6 is a schematic view of a partial structure between the upper fixing base and the lower fixing base of the present invention.
The specific implementation mode is as follows:
example (b): as shown in fig. 1 to 6, a main leg longitudinal fixing device of a bridge girder erection machine comprises a main girder 10, wherein the main girder 10 comprises two auxiliary girders 11 parallel to each other, a main leg 20 is installed in the middle of each auxiliary girder 11, a middle rotating frame 21 of each main leg 20 is positioned right below each auxiliary girder 11, a plurality of lower fixing seats 22 are fixed in the middle of a top plate of each middle rotating frame 21, and a plurality of upper fixing seats 13 are fixed on the bottom surface of a middle transverse girder 12 of each auxiliary girder 11;
the upper fixing seat 13 and the lower fixing seat 22 are both hinged with a connecting block 30, and a long through hole 31 is formed in the middle of the connecting block 30;
part of the upper fixing seats 13 on the auxiliary beam 11 are positioned above the left side of the lower fixing seats 22, and the other part of the upper fixing seats 13 on the auxiliary beam 11 are positioned above the right side of the lower fixing seats 22;
the upper part of the long pull rod 40 is inserted in the long through hole 31 in the connecting block 30 of the corresponding upper fixing seat 13, and the upper end of the long pull rod 40 extends out of the long through hole 31 and is fixed with a limiting piece 50;
the lower part of the long pull rod 40 is inserted into the long through hole 31 in the connecting block 30 of the corresponding lower fixing seat 22, and the lower end of the long pull rod 40 extends out of the corresponding long through hole 31 and is fixed with a limiting piece 60.
Further, the lower fixing seat 22 includes a lower fixing plate 221, lower vertical plates 222 are fixed to the front and rear portions of the top surface of the lower fixing plate 221, hinge shaft portions 32 are formed at the front and rear ends of the connecting block 30, the hinge shaft portions 32 are inserted into insertion holes formed in the corresponding lower vertical plates 222, and the lower fixing plate 221 is welded to or fixedly connected to the top plate of the middle rotating frame 21 through bolts.
Further, one side wall surface of the connecting block 30 is a plane, the rest are arc-shaped wall surfaces, and one end of the long through hole 31 extends out of the connecting block 30 to form a planar wall surface.
Further, the two ends of the long tie rod 40 are formed with screw connection portions 41, and the screw connection portions 41 extend out of the corresponding long through holes 31 and are screwed with the limiting members 50.
Further, the limiting member 50 is an adjusting nut.
Further, the upper fixing seat 13 includes an upper fixing plate 131, the upper fixing plate 131 is fixedly connected to the bottom surface of the corresponding middle transverse beam 12 through bolts, upper vertical plates 132 are fixed to the front and rear sides of the bottom surface of the upper fixing plate 131, hinge shaft portions 32 are formed at the front and rear ends of the connecting block 30, and the hinge shaft portions 32 are inserted into insertion holes formed in the corresponding upper vertical plates 132.
Further, two lower fixing seats 22 which are parallel to each other in the front and back direction are fixed in the middle of the top plate of the middle rotating frame 21;
an upper fixing seat 13 is fixed on the bottom surface of the corresponding middle transverse beam 12 above the left side or the right side of the lower fixing seat 22, and the central axis of the long through hole 31 of the connecting block 30 of the upper fixing seat 13 is positioned on the same vertical plane with the central axis of the long through hole 31 of the corresponding connecting block 30 of the lower fixing seat 22.
The bottom surface of the secondary beam 11 of the main beam 10 is provided with two side beams at the sides, and two ends of a plurality of middle transverse beams 12 are welded and fixed between the two side beams at the sides.
When the main leg mechanism with the balance beam 100 is adopted, the pressing block 101 on the balance beam 100 is pressed on the bottom surface of the side edge beam, then the lower fixing plate 221 is fixed on the corresponding middle transverse beam 12, the upper part of the elongated pull rod 40 is inserted and sleeved in the elongated through hole 31 in the connecting block 30 of the corresponding upper fixing seat 13, and the screwed part 41 at the upper end of the elongated pull rod 40 extends out of the corresponding elongated through hole 31 and is screwed with the limiting piece 50;
the lower part of the long pull rod 40 is inserted and sleeved in the long through hole 31 in the connecting block 30 of the corresponding lower fixed seat 22, and the screwed part 41 at the lower end of the long pull rod 40 extends out of the corresponding long through hole 31 and is screwed with the limiting part 50, so that when the balance beam 100 and the main beam 10 are longitudinally tensioned, the long pull rods 40 at the left side and the right side of the middle rotating frame 21 can rotate along with the connecting block 30 and are telescopically adjusted along the long through hole 31, and the simultaneous adjustment can be ensured when the balance beam 100 and the main beam 10 are slightly adjusted in inclination, and the effect is good.
Claims (7)
1. The utility model provides a vertical fixing device of main landing leg of bridging machine, includes girder (10), girder (10) include two vice roof beams (11) that are parallel to each other, and the mid-mounting of vice roof beam (11) has main landing leg (20), its characterized in that: the middle rotating frame (21) of the main supporting leg (20) is positioned right below the auxiliary beam (11), a plurality of lower fixing seats (22) are fixed in the middle of a top plate of the middle rotating frame (21), and a plurality of upper fixing seats (13) are fixed on the bottom surface of a middle transverse beam (12) of the auxiliary beam (11);
the upper fixing seat (13) and the lower fixing seat (22) are both hinged with a connecting block (30), and a long through hole (31) is formed in the middle of the connecting block (30);
part of the upper fixing seats (13) on the auxiliary beam (11) are positioned above the left side of the lower fixing seats (22), and the other part of the upper fixing seats (13) on the auxiliary beam (11) are positioned above the right side of the lower fixing seats (22);
the upper part of the long pull rod (40) is inserted and sleeved in a long through hole (31) in the connecting block (30) of the corresponding upper fixed seat (13), and the upper end of the long pull rod (40) extends out of the long through hole (31) and is fixed with a limiting piece (50);
the lower part of the long pull rod (40) is inserted in the long through hole (31) in the connecting block (30) of the corresponding lower fixing seat (22), and the lower end of the long pull rod (40) extends out of the corresponding long through hole (31) and is fixed with a limiting piece (50).
2. The longitudinal fixing device for the main leg of the bridge girder erection machine according to claim 1, wherein: the lower fixing seat (22) comprises a lower fixing plate (221), lower vertical plates (222) are fixed to the front portion and the rear portion of the top surface of the lower fixing plate (221), hinged shaft portions (32) are formed at the front end and the rear end of the connecting block (30), insertion holes formed in the corresponding lower vertical plates (222) are sleeved with the hinged shaft portions (32), and the lower fixing plate (221) is fixedly welded or fixedly connected to the top plate of the middle rotating frame (21) through bolts.
3. The longitudinal fixing device for the main leg of the bridge girder erection machine according to claim 1, wherein: one side wall surface of the connecting block (30) is a plane, the rest are arc-shaped wall surfaces, and one end of the long through hole (31) extends out of the connecting block (30) and is the plane wall surface.
4. The longitudinal fixing device for the main leg of the bridge girder erection machine according to claim 1, wherein: and threaded parts (41) are formed at two ends of the long pull rod (40), and the threaded parts (41) extend out of the corresponding long through holes (31) and are in threaded connection with limiting parts (50).
5. The longitudinal fixing device for the main leg of the bridge girder erection machine according to claim 1, wherein: the limiting piece (50) is an adjusting nut.
6. The longitudinal fixing device for the main leg of the bridge girder erection machine according to claim 1, wherein: go up fixing base (13) and include upper fixed plate (131), upper fixed plate (131) pass through bolt fixed connection on the bottom surface of the horizontal roof beam in corresponding middle part (12), both sides all are fixed with vertical board (132) in the front and back of the bottom surface of upper fixed plate (131), and both ends shaping has articulated axial region (32) around connecting block (30), and articulated axial region (32) plug bush is in the jack that shaping has on the vertical board (132) of last that corresponds.
7. The longitudinal fixing device for the main leg of the bridge girder erection machine according to claim 1, wherein: two lower fixed seats (22) which are parallel in the front and the back are fixed in the middle of the top plate of the middle rotating frame (21);
an upper fixing seat (13) is fixed on the bottom surface of the middle transverse beam (12) corresponding to the upper left side or the upper right side of the lower fixing seat (22), and the central axis of the long through hole (31) of the connecting block (30) of the upper fixing seat (13) and the central axis of the long through hole (31) of the connecting block (30) of the corresponding lower fixing seat (22) are located on the same vertical plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022543723.XU CN213896790U (en) | 2020-11-06 | 2020-11-06 | Main support leg longitudinal fixing device of bridge girder erection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022543723.XU CN213896790U (en) | 2020-11-06 | 2020-11-06 | Main support leg longitudinal fixing device of bridge girder erection machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213896790U true CN213896790U (en) | 2021-08-06 |
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ID=77118441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022543723.XU Active CN213896790U (en) | 2020-11-06 | 2020-11-06 | Main support leg longitudinal fixing device of bridge girder erection machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213896790U (en) |
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2020
- 2020-11-06 CN CN202022543723.XU patent/CN213896790U/en active Active
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