CN216004986U - Cantilever crane for transporting and erecting bridge sections - Google Patents
Cantilever crane for transporting and erecting bridge sections Download PDFInfo
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- CN216004986U CN216004986U CN202121416902.5U CN202121416902U CN216004986U CN 216004986 U CN216004986 U CN 216004986U CN 202121416902 U CN202121416902 U CN 202121416902U CN 216004986 U CN216004986 U CN 216004986U
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Abstract
The utility model discloses a cantilever crane for transporting and erecting bridge sections, belongs to the technical field of bridge construction equipment, and aims at the problems of splicing accuracy and position adjustment. According to the utility model, the symmetrically distributed second trusses welded on the outer wall of the top of the support frame can adjust the positions of the bridge sections in the splicing process after the bridge sections are lifted, so that the bridge sections are prevented from being lifted and spliced again after being corrected again after the positions are deviated, and the working efficiency can be greatly improved by adopting the connection mode.
Description
Technical Field
The utility model relates to the technical field of bridge construction equipment, in particular to a cantilever crane for transporting and erecting bridge sections.
Background
In the process of bridge erection construction, erection is usually carried out by means of splicing prefabricated sections; the bridge tower is firstly built, and then the prefabricated bridge sections are lifted and fixedly connected with the bridge tower to complete erection. At present, when the bridge is erected, because the prefabricated segment is large in size and the bridge tower is high, in the splicing erection process, the engineering quantity is large, the construction difficulty is high, the construction risk is high, the construction period is long, the existing hoisting equipment cannot carry out limit control on the bridge segment in the hoisting process, and therefore the situation of position deviation can occur in the hoisting process.
To this end, the chinese patent (application No. 201710915264.3) discloses a "cantilever crane for transportation erection of bridge segments", the device is a cantilever crane for transporting and erecting bridge sections, and by arranging a middle supporting leg and a rear supporting leg, two parallel main trusses are arranged above the middle supporting leg and the rear supporting leg, and a hoisting trolley is arranged above the main trusses, so that the construction is convenient, the steel main beam and the prefabricated bridge deck of the bridge section can be installed only by arranging the construction platform at the joint of the steel main beam during construction, thereby reducing the construction workload and the construction difficulty, and can set up the field of piecing together in advance on the bridge floor, the prefabricated segment of bridge of being convenient for transports and splices, reduces high altitude construction point simultaneously, reduces constructor, has improved construction safety nature, reduces construction period, but this equipment can't carry out limit control to the segment, can't guarantee the advance degree of accuracy of concatenation.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art and provides a cantilever crane for transporting and erecting bridge sections.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a cantilever crane for transportation and erection of bridge sections comprises a supporting mechanism and a moving mechanism, wherein the supporting mechanism comprises supporting columns distributed equidistantly, first supporting blocks are welded on the outer walls of the tops of the supporting columns, a first truss is fixed on the outer wall of the top of each first supporting block through bolts, a cross beam is welded on the outer wall of one side of the first truss, a rotating shaft is welded on the outer wall of one side of each first supporting block, a limiting plate is rotatably connected with the outer wall of one side of the limiting plate, symmetrically-distributed connecting blocks are welded at the bottom of the outer wall of one side of the limiting plate, hydraulic electric telescopic rods are welded on the outer wall of one side of each connecting block, the moving mechanism comprises a supporting frame and second supporting blocks welded on the outer wall of the opposite side of the supporting frame, the four corners of the outer wall of the bottom of the supporting frame are welded with first fixing frames through the supporting rods, first idler wheels are fixed on the outer wall of the opposite side of the first fixing frames through the rotating rods, the welding of support frame top outer wall has the second truss of symmetric distribution, and second truss top inner wall sliding connection has the second gyro wheel, second gyro wheel both sides outer wall has the second mount through the dwang welding, and second mount top outer wall has the mount table through the bracing piece welding, mount table top outer wall has the gallows of playing through the bolt fastening, and plays gallows bottom outer wall and be fixed with the frame hoist.
Preferably, the inner wall of the top of the first truss is in sliding connection with the outer wall of the first roller, the size of the outer wall of the first roller is matched with that of the inner wall of the first truss, the outer wall of the top of the first supporting block is provided with an installation groove, and the size of the inner wall of the installation groove is matched with that of the outer wall of the bottom of the first truss.
Preferably, the outer wall of the bottom of the first truss is welded with a supporting plate, and the outer wall of one side of the supporting plate is connected with the outer wall of one side of the hydraulic electric telescopic rod through a bolt.
Preferably, the outer wall of the bottom of the support column is provided with threaded holes distributed at equal intervals, and the inner wall of each threaded hole is fixed with a fixing bolt.
Preferably, the top of the outer wall of one side of the limiting plate is provided with a mounting hole, and the size of the inner wall of the mounting hole is matched with that of the outer wall of the rotating shaft.
Preferably, the outer wall of one side of the connecting block is provided with a connecting hole, and the inner wall of one side of the connecting hole is welded with the outer wall of one side of the rod body of the hydraulic electric telescopic rod.
Preferably, the lifting frame is connected with an external switch through a lead, and the switch is connected with an external power supply through a lead.
The utility model has the beneficial effects that:
1. according to the cantilever crane for transporting and erecting the bridge sections, the limiting plates are driven by the hydraulic electric telescopic rods, the angle of the limiting plates is adjusted through the rotation of the rotating shafts, the angle of the bridge sections can be adjusted according to the angle of the bridge sections in the process of splicing the bridge sections, and the bridge sections are limited in descending splicing, so that the connecting mode can be adapted to the bridge sections with different angles, and meanwhile, the splicing accuracy can be ensured;
2. this cantilever loop wheel machine for bridge segment transportation erects, through the second truss of bracing frame top outer wall welded symmetric distribution, can carry out the in-process of concatenation to the bridge segment and carry out the adjustment on the position after the bridge segment lifts by crane, prevent that the position from appearing the skew after need lifting by crane the concatenation once more after correcting again, work efficiency can be increaseed greatly to such connected mode.
Drawings
Fig. 1 is a front view of a moving mechanism structure of a cantilever crane for transporting and erecting bridge sections, which is provided by the utility model;
fig. 2 is a front view of a support mechanism structure of a cantilever crane for transportation erection of a bridge segment according to the present invention;
fig. 3 is a structural sectional view of a support mechanism of a jib crane for transportation erection of a bridge segment according to the present invention;
fig. 4 is a front view of the overall structure of a jib crane for transporting and erecting bridge sections according to the present invention.
In the figure: the lifting device comprises a supporting mechanism 1, a supporting column 101, a first supporting block 102, a first truss 103, a cross beam 104, a rotating shaft 105, a limiting plate 106, a connecting block 107, a hydraulic electric telescopic rod 108, a moving mechanism 2, a supporting frame 201, a second supporting block 202, a first fixing frame 203, a first roller 204, a second truss 205, a second roller 206, a second fixing frame 207, an installation platform 208, a lifting frame 209 and a frame hanger 210.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, a cantilever crane for transportation erection of bridge segment, includes supporting mechanism 1 and moving mechanism 2, supporting mechanism 1 includes support column 101, first supporting block 102, first truss 103, crossbeam 104, axis of rotation 105, limiting plate 106, connecting block 107 and hydraulic electric telescopic handle 108 that the equidistance distributes, support column 101 top outer wall welding has first supporting block 102, and first supporting block 102 top outer wall has first truss 103 through the bolt fastening, support column 101 bottom outer wall is opened has the screw hole that the equidistance distributes, and threaded hole inner wall is fixed with fixing bolt, first truss 103 one side outer wall welding has crossbeam 104, first supporting block 102 one side outer wall welding has axis of rotation 105, and axis of rotation 105 outer wall rotation is connected with limiting plate 106, limiting plate 106 one side outer wall top is opened has the mounting hole, and the inner wall size of mounting hole and the outer wall size adaptation of axis of rotation 105, the bottom of the outer wall of one side of the limiting plate 106 is welded with symmetrically distributed connecting blocks 107, the outer wall of one side of the connecting blocks 107 is welded with a hydraulic electric telescopic rod 108, the outer wall of the bottom of the first truss 103 is welded with a supporting plate, the outer wall of one side of the supporting plate is connected with the outer wall of one side of the hydraulic electric telescopic rod 108 through a bolt, the outer wall of one side of the connecting block 107 is provided with a connecting hole, and the inner wall of one side of the connecting hole is welded with the outer wall of one side of the rod body of the hydraulic electric telescopic rod 108, the limit plate 106 is driven by the pushing of the hydraulic electric telescopic rod 108, the angle of the limit plate 106 is adjusted by the rotation of the rotating shaft 105, and in the process of splicing bridge sections, the angle of the bridge sections is adjusted according to the angle of the bridge sections, and the bridge sections are limited when being spliced in a descending mode, so that the connecting mode can be adapted to the bridge sections with different angles, and meanwhile, the splicing accuracy can be ensured;
the moving mechanism 2 comprises a support frame 201, a second support block 202, a first fixing frame 203, a first roller 204, a second truss 205, a second roller 206, a second fixing frame 207, an installation table 208, a lifting frame 209 and a frame hanger 210, wherein the second support block 202 is welded on the outer wall of one opposite side of the support frame 201 and is distributed equidistantly, the first fixing frame 203 is welded on four corners of the outer wall of the bottom of the support frame 201 through support rods, the first roller 204 is fixed on the outer wall of one opposite side of the first fixing frame 203 through a rotating rod, the inner wall of the top of the first truss 103 is in sliding connection with the outer wall of the first roller 204, the size of the outer wall of the first roller 204 is matched with the size of the inner wall of the first truss 103, an installation groove is formed on the outer wall of the top of the first support block 102, the size of the inner wall of the installation groove is matched with the size of the outer wall of the bottom of the first truss 103, and the second truss 205 is welded on the outer wall of the top of the support frame 201 and is distributed symmetrically, and second truss 205 top inner wall sliding connection has second gyro wheel 206, second gyro wheel 206 both sides outer wall has second mount 207 through the dwang welding, and second mount 207 top outer wall has mount table 208 through the bracing piece welding, mount table 208 top outer wall has lifting frame 209 through the bolt fastening, and lifting frame 209 bottom outer wall is fixed with frame hoist 210, lifting frame 209 is connected with external switch through the wire, and the switch is connected with external power source through the wire, through the second truss 205 of 201 top outer wall welded symmetric distribution, can lift by crane the in-process of splicing after the bridge segment lifts by crane and carry out the adjustment on the position to the bridge segment, prevent to lift by crane the concatenation once more after the skew appears in the position, such connected mode can improve work efficiency greatly.
The working principle is as follows: when the user uses this equipment, through the second truss 205 of support frame 201 top outer wall welded symmetric distribution, can carry out the adjustment in the position to the bridge segment section after the bridge segment section lifts by crane, prevent that the position from appearing the skew after need correcting again and lifting by crane the concatenation, work efficiency can be adjusted greatly to such connected mode, promote through hydraulic pressure electric telescopic handle 108 and drive limiting plate 106, limiting plate 106 carries out angle modulation through the rotation of axis of rotation 105, can carry out the in-process of concatenation at the bridge segment section, adjust according to the angle of bridge segment section, and carry out spacingly to it when descending the concatenation, such connected mode can the bridge segment of different angles of adaptation, also can ensure the precision of concatenation simultaneously.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (7)
1. The cantilever crane for transportation erection of bridge sections comprises a supporting mechanism (1) and a moving mechanism (2), and is characterized in that the supporting mechanism (1) comprises supporting columns (101) and supporting columns (101) which are distributed equidistantly, a first supporting block (102) is welded to the outer wall of the top of the supporting mechanism (1), a first truss (103) is fixed to the outer wall of the top of the first supporting block (102) through bolts, a cross beam (104) is welded to the outer wall of one side of the first truss (103), a rotating shaft (105) is welded to the outer wall of one side of the first supporting block (102), a limiting plate (106) is connected to the outer wall of the rotating shaft (105) in a rotating mode, symmetrically-distributed connecting blocks (107) are welded to the bottom of the outer wall of one side of the limiting plate (106), a hydraulic electric telescopic rod (108) is welded to the outer wall of one side of the connecting blocks (107), and the moving mechanism (2) comprises second supporting blocks (202) which are welded to one side of the supporting frame (201) and the outer wall of the supporting frame (201) are distributed equidistantly, and support frame (201) bottom outer wall four corners all has first mount (203) through the bracing piece welding, the relative one side outer wall of first mount (203) is fixed with first gyro wheel (204) through the dwang, support frame (201) top outer wall welding has symmetric distribution's second truss (205), and second truss (205) top inner wall sliding connection has second gyro wheel (206), second gyro wheel (206) both sides outer wall has second mount (207) through the dwang welding, and second mount (207) top outer wall has mount table (208) through the bracing piece welding, mount table (208) top outer wall has gallows (209) through the bolt fastening, and plays gallows (209) bottom outer wall fastening has frame hoist (210).
2. The jib crane for transportation erection of a bridge segment as claimed in claim 1, wherein the inner wall of the top of the first girder (103) is slidably connected to the outer wall of the first roller (204), the outer wall of the first roller (204) has a size corresponding to the size of the inner wall of the first girder (103), the outer wall of the top of the first support block (102) is provided with an installation groove, and the size of the inner wall of the installation groove is corresponding to the size of the outer wall of the bottom of the first girder (103).
3. The cantilever crane for transportation and erection of bridge sections according to claim 1, wherein a support plate is welded on the outer wall of the bottom of the first truss (103), and the outer wall of one side of the support plate is connected with the outer wall of one side of the hydraulic electric telescopic rod (108) through bolts.
4. The jib crane for transporting and erecting bridge sections according to claim 1 wherein the outer wall of the bottom of the support column (101) is provided with threaded holes distributed at equal intervals, and the inner wall of the threaded hole is fixed with a fixing bolt.
5. The cantilever crane for transportation and erection of bridge sections according to claim 1, wherein the top of the outer wall of one side of the limiting plate (106) is provided with a mounting hole, and the size of the inner wall of the mounting hole is matched with the size of the outer wall of the rotating shaft (105).
6. The jib crane for transportation erection of a bridge segment as claimed in claim 1 wherein the connection block (107) has a connection hole formed in an outer wall of one side thereof, and an inner wall of one side thereof is welded to an outer wall of one side of a rod of the hydraulic electric telescopic rod (108).
7. A jib crane for transport erection of bridge sections according to claim 1 wherein the lifting frame (209) is connected by a wire to an external switch and the switch is connected by a wire to an external power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121416902.5U CN216004986U (en) | 2021-06-24 | 2021-06-24 | Cantilever crane for transporting and erecting bridge sections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121416902.5U CN216004986U (en) | 2021-06-24 | 2021-06-24 | Cantilever crane for transporting and erecting bridge sections |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216004986U true CN216004986U (en) | 2022-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121416902.5U Active CN216004986U (en) | 2021-06-24 | 2021-06-24 | Cantilever crane for transporting and erecting bridge sections |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216004986U (en) |
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2021
- 2021-06-24 CN CN202121416902.5U patent/CN216004986U/en active Active
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