Bridge steel structure lifting device
Technical Field
The invention relates to the technical field of bridge construction, in particular to bridge steel structure hoisting equipment.
Background
The steel structure building is one of the main building types at present, and is particularly suitable for building large-span, ultrahigh and extra-heavy buildings because of high steel strength, light dead weight, good overall rigidity and strong deformability; need transport the steel construction to the eminence on the factory, all need hoist it, conveniently transport appointed position, carry out the in-process of hoist to the steel construction, then need dedicated hoisting equipment. The weight of steel construction all is comparatively great, because the steel construction generally is shaft-like structure, and the focus is unstable, appears the unstable condition of steel construction easily when hoist and mount steel construction among the prior art for the steel construction takes place the condition that the rotation rocked at the in-process of hoist and mount, takes place the risk that drops and collide easily.
Disclosure of Invention
The invention provides bridge steel structure hoisting equipment, which solves the problems in the background technology.
In order to achieve the purpose, the invention adopts the following technical scheme:
a hoisting device for a bridge steel structure comprises a support frame, wherein the top end of the support frame is fixedly connected with an installation platform, the top end of the installation platform is fixedly provided with a lifting motor and a take-up pulley, an output shaft of the lifting motor is fixedly connected with a rotating shaft of the take-up pulley, a lifting steel wire rope is wound outside the take-up pulley, one side of the installation platform is fixedly connected with a support rod which is obliquely arranged, one end of the support rod, which is far away from the installation platform, is provided with a guide wheel, one end of the lifting steel wire rope passes through the guide wheel and is fixedly connected with a connecting piece, two sides of the bottom end of the connecting piece are both connected with a clamping and fixing box through iron chains, a bidirectional threaded rod is rotatably arranged in the clamping and fixing box, two moving blocks are arranged on the outer side of, one side fixed mounting of the fixed case of centre gripping has first rotating electrical machines, the output shaft of first rotating electrical machines and the one end fixed connection of two-way threaded rod.
Preferably, two the equal fixedly connected with fixed cover in one side that the link plate was kept away from each other, the one-way threaded rod is installed to fixed cover internal thread, two one-way threaded rod's screw thread opposite direction, the one end that two one-way threaded rod are close to each other runs through link plate and fixedly connected with sleeve and prismatic bolt respectively, the one end of prismatic bolt extends to in the sleeve, the outside fixedly connected with driven gear of prismatic bolt, the bottom fixed mounting of centre gripping fixed box has the second rotating electrical machines, the output shaft fixedly connected with driving gear of second rotating electrical machines, driving gear and driven gear meshing.
Preferably, slidable mounting has the removal riser in the fixed cover, removes and sets up threaded hole on the riser, and the one-way threaded rod runs through the removal riser through the screw hole, and the equal fixed connection in one side that two removal risers are close to each other has the connecting rod that the level set up, and the one end of connecting rod runs through link plate and fixedly connected with grip block.
Preferably, two the equal fixedly connected with rubber pad in one side that the grip block is close to each other, and the guide bar that the level set up is fixedly mounted in the fixed cover, has seted up the guiding hole on the removal riser, and the guide bar runs through the removal riser through the guiding hole.
Preferably, the inner wall of the top end of the clamping and fixing box is fixedly connected with a guide rail, and the top end of the moving block is in sliding connection with the guide rail.
Preferably, the hanging plates are of an L-shaped structure, and the two hanging plates are symmetrically arranged.
The invention has the beneficial effects that:
1. the steel frame can be lifted by driving the take-up pulley to rotate, retracting and lifting the steel wire rope through the lifting motor, and the two iron chains are connected through the two iron chains so that the steel frame can be fixed from two ends of the steel frame, so that the steel frame is not easy to rotate and shake in the lifting process, and the lifting is more stable;
2. the first rotating motor drives the bidirectional threaded rod to rotate, so that the two moving blocks can be driven to move close to or away from each other, the distance between the two hanging plates can be adjusted, the steel frame can be fixed by penetrating the steel frame between the two hanging plates, and the steel frame is very convenient to fix and disassemble;
3. the driving gear can be driven to rotate through the second rotating motor, the prismatic bolt is driven to rotate through the meshing of the driving gear and the driven gear, the prismatic bolt can be driven to synchronously rotate through the sliding fit of the prismatic bolt and the sleeve, when the two unidirectional bolts synchronously rotate, the two movable vertical plates can be driven to synchronously move in opposite directions, so that the two clamping plates can be driven to mutually approach and separate, and the bridge steel frame is clamped through the clamping plates in an auxiliary mode, so that the bridge steel frame is more stable in the lifting process and cannot slip;
the steel frame lifting device is ingenious in structure and convenient to use, the steel frame can be hung from two ends of the steel frame and hung on the lifting steel wire ropes through the two iron chains, rotation and shaking are not prone to occurring in the lifting process, the lifting is more stable, the steel frame is very convenient to fix and detach, and the bridge steel frame can be clamped in an auxiliary mode through the clamping plates when the steel frame is fixed, so that the bridge steel frame is more stable in the lifting process and cannot slip.
Drawings
Fig. 1 is a schematic structural view of a main view of a bridge steel structure hoisting device provided by the invention.
Fig. 2 is a side view cross-sectional view of a clamping and fixing box of the bridge steel structure hoisting equipment provided by the invention.
Fig. 3 is a sectional view of a connecting position of a sleeve and a prism bolt of the hoisting equipment for the bridge steel structure provided by the invention.
Reference numbers in the figures: the automatic lifting device comprises a support frame 1, a mounting table 2, a lifting motor 3, a lifting steel wire rope 4, a supporting rod 5, a guide wheel 6, a connecting piece 7, an iron chain 8, a clamping and fixing box 9, a bidirectional threaded rod 10, a moving block 11, a guide rail 12, a hanging plate 13, a first rotating motor 14, a fixing cover 15, a unidirectional threaded rod 16, a moving vertical plate 17, a connecting rod 18, a clamping plate 19, a guide rod 20, a sleeve 21, a prism bolt 22, a driven gear 23, a second rotating motor 24 and a driving gear 25.
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. 1-3, a bridge steel structure hoisting device comprises a support frame 1, a mounting table 2 is fixedly connected to the top end of the support frame 1, a lifting motor 3 and a take-up pulley are fixedly mounted to the top end of the mounting table 2, an output shaft of the lifting motor 3 is fixedly connected to a rotating shaft of the take-up pulley, a lifting steel wire rope 4 is wound on the outer side of the take-up pulley, a support rod 5 which is obliquely arranged is fixedly connected to one side of the mounting table 2, a guide wheel 6 is mounted to one end of the support rod 5 far away from the mounting table 2, one end of the lifting steel wire rope 4 passes through the guide wheel 6 and is fixedly connected to a connecting piece 7, clamping fixing boxes 9 are connected to both sides of the bottom end of the connecting piece 7 through iron chains 8, a bidirectional threaded rod 10 is rotatably mounted in the clamping fixing boxes 9, the bottom fixedly connected with link plate 13 of movable block 11, link plate 13 extend to the outside of the fixed case 9 of centre gripping, and one side fixed mounting of the fixed case 9 of centre gripping has first rotating electrical machines 14, the output shaft of first rotating electrical machines 14 and the one end fixed connection of two-way threaded rod 10.
Wherein, one side of the two hanging plates 13 far away from each other is fixedly connected with a fixed cover 15, a one-way threaded rod 16 is installed in the internal thread of the fixed cover 15, the thread directions of the two one-way threaded rods 16 are opposite, one end of the two one-way threaded rod 16 close to each other penetrates through the hanging plates 13 and is respectively and fixedly connected with a sleeve 21 and a prism bolt 22, one end of the prism bolt 22 extends into the sleeve 21, the outer side of the prism bolt 22 is fixedly connected with a driven gear 23, the bottom end of the clamping and fixing box 9 is fixedly provided with a second rotating motor 24, an output shaft of the second rotating motor 24 is fixedly connected with a driving gear 25, the driving gear 25 is meshed with the driven gear 23, thereby driving the prism bolt 22 to rotate through the meshing of the driving gear 25 and the driven gear 23, and then the two one-way threaded rods 16 can be driven to synchronously rotate through the sliding fit of the prismatic bolt 22 and the sleeve 21.
Wherein, slidable mounting has the removal riser 17 in the fixed cover 15, remove and set up threaded hole on the riser 17, one-way threaded rod 16 runs through the removal riser 17 through the screw hole, two equal fixed connection in one side that removal riser 17 is close to each other have the connecting rod 18 that the level set up, the one end of connecting rod 18 runs through link plate 13 and fixedly connected with grip block 19, can drive two when two one-way threaded rod 16 synchronous rotations and remove towards opposite direction in that the removal riser 17 is synchronous, thereby can drive two grip blocks 19 and be close to each other and keep away from, thereby through the supplementary centre gripping bridge steelframe of grip block 19, make the bridge steelframe more stable at the in-process that promotes, can not skid.
Wherein, the equal fixedly connected with rubber pad in the one side that two grip blocks 19 are close to each other, and fixed mounting has the guide bar 20 of level setting in the fixed cover 15, has seted up the guiding hole on the removal riser 17, and guide bar 20 runs through removal riser 17 through the guiding hole, and guide bar 20 slides in the guiding hole and plays the slide guide effect to removal riser 17 horizontal migration.
Wherein, fixedly connected with guide rail 12 on the top inner wall of centre gripping fixed box 9, the top and the guide rail 12 sliding connection of movable block 11, guide rail 12 plays the slide guide effect to centre gripping fixed box 9 horizontal migration.
Wherein, link plate 13 is "L" font structure, and two link plate 13 mutual symmetries set up, and link plate 13 can be through being close to each other with the steelframe hang between two link plates 13, reach the purpose of hoist and mount.
The working principle is as follows: the purpose of lifting the steel frame can be achieved by driving the take-up pulley to rotate, retracting and lifting the steel wire rope 4 through the lifting motor 3, the two iron chains 9 are connected through the two iron chains 8 so as to fix the steel frame from two ends of the steel frame, so that the steel frame is not easy to rotate and shake in the lifting process, the lifting is more stable, the two moving blocks 11 can be driven to move close to or away from each other by driving the two-way threaded rod 10 to rotate through the first rotating motor 14, so that the distance between the two hanging plates 13 can be adjusted, the steel frame can be fixed by penetrating the two hanging plates 13, the steel frame is very convenient to fix and disassemble, the driving gear 25 can be driven to rotate through the second rotating motor 24, the prism bolt 22 is driven to rotate through the meshing of the driving gear 25 and the driven gear 23, and then the two one-way threaded rods 16 can, can drive two synchronous opposite directions of orientation of removal riser 17 and remove when two one-way threaded rod 16 synchronous rotations to can drive two grip blocks 19 and be close to each other and keep away from, thereby through the supplementary centre gripping bridge steelframe of grip block 19, make the bridge steelframe more stable at the in-process that promotes, can not skid.
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 the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.