CN111410117A - Vertical lifting appliance for side mold of prefabricated box girder - Google Patents
Vertical lifting appliance for side mold of prefabricated box girder Download PDFInfo
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- CN111410117A CN111410117A CN202010370564.XA CN202010370564A CN111410117A CN 111410117 A CN111410117 A CN 111410117A CN 202010370564 A CN202010370564 A CN 202010370564A CN 111410117 A CN111410117 A CN 111410117A
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- supporting leg
- longitudinal beam
- welding
- box girder
- hook
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The utility model provides a perpendicular hoist of prefabricated case roof beam side form, characterized by: respectively manufacturing a first supporting leg and a second supporting leg by using profile steel, respectively welding two ends of a transverse supporting rod at the bottom ends of the first supporting leg and the second supporting leg, and respectively welding a first hook and a second hook at the lower parts of the first supporting leg and the second supporting leg; welding two ends of a first cross beam on the inner side surfaces of the left ends of a first longitudinal beam and a second longitudinal beam respectively, welding two ends of a second cross beam on the inner side surfaces of the right ends of the first longitudinal beam and the second longitudinal beam respectively, welding the left ends of the first longitudinal beam and the second longitudinal beam on the side surfaces of the upper ends of a first supporting leg and a second supporting leg respectively, and welding a first triangular reinforcing steel plate on the side surface of the joint of the first longitudinal beam and the first supporting leg; the second triangular reinforcing steel plate is welded on the side face of the joint of the second longitudinal beam and the second supporting leg; the two ends of the hanging rod are welded between the first cross beam and the second cross beam, round holes are formed in the hanging rod, and different hanging hook holes are selected according to different weight of the template.
Description
Technical Field
The invention relates to the technical field of bridge precast box girder construction, in particular to a vertical lifting appliance for a precast box girder side mold.
Background
The length of the prefabricated box girder is about 25-40 m generally, the side form is composed of a plurality of sections of 5-6 m, and the side form is irregular according to the structure of the girder body, so that the side form is difficult to ensure vertical stability during hoisting generally, secondary overturning is needed to be carried out to place, the labor intensity of constructors is high, the efficiency is low, and the side turning of the formwork is easy to occur due to instability in the hoisting and falling processes, so that great potential safety hazards exist.
Disclosure of Invention
The invention aims to provide a vertical lifting appliance for a side die of a precast box girder, aiming at the defects of lifting and mounting of the side die of the existing precast box girder.
The technical scheme of the invention is as follows: a vertical lifting appliance for prefabricated box girder side moulds comprises supporting legs, longitudinal beams, transverse supporting rods, hanging rods (lifting lugs), hooks, box girder side moulds, an upper cross beam, a middle supporting column, a steel wire rope, a plug pin seat, a pin shaft and a traction rope.
A perpendicular hoist of prefabricated case roof beam side form, make into first supporting leg and second supporting leg respectively with shaped steel, weld the both ends of horizontal support bar respectively in the bottom of first supporting leg and second supporting leg, the lower part of first supporting leg and second supporting leg is welded respectively has first couple and second couple, constitutes the support frame.
Welding two ends of a first cross beam on the inner side surfaces of the left ends of a first longitudinal beam and a second longitudinal beam respectively, welding two ends of a second cross beam on the inner side surfaces of the right ends of the first longitudinal beam and the second longitudinal beam respectively, welding the left ends of the first longitudinal beam and the second longitudinal beam on one side surface of the upper ends of a first supporting leg and a second supporting leg respectively, and welding a first triangular reinforcing steel plate on the side surface of the joint of the first longitudinal beam and the first supporting leg; the second triangular reinforcing steel plate is welded on the side face of the joint of the second longitudinal beam and the second supporting leg; two ends of a hanging rod made of a steel plate are welded between the first cross beam and the second cross beam, and a round hole is formed in the hanging rod; according to different weight of the template, different hook holes (hanging points) are selected.
The first longitudinal beam and the second longitudinal beam are respectively provided with a first bolt seat and a second bolt seat, and the first bolt and the second bolt are respectively inserted into the first bolt seat and the second bolt seat.
The upper parts of the first supporting leg and the second supporting leg are respectively provided with a first pin shaft and a second pin shaft, one ends of the first traction rope and the second traction rope are respectively connected to the first pin shaft and the second pin shaft, and the other ends of the first traction rope and the second traction rope are respectively connected with a hook.
The invention has the beneficial effects that: a vertical lifting appliance for a side form of a prefabricated box girder ensures that the side form can still be in a vertical and stable state after being lifted in the process of lifting the side form of the prefabricated box girder, greatly improves the safety of the side form during lifting operation, simultaneously realizes one-time in-place lifting of the side form, avoids secondary overturning in-place and improves the on-site construction efficiency.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a vertical lifting appliance for side dies of a prefabricated box girder;
FIG. 3 is a schematic structural view of a vertical lifting appliance provided with a bolt and a bolt seat and used for a side die of a prefabricated box girder;
FIG. 4 is a schematic structural view of a prefabricated box girder side-die vertical hanger provided with a pulling rope and a hook.
In the figure, 1, a first supporting leg (section steel), 1', a second supporting leg (section steel), 2, a first longitudinal beam (section steel), 2', a second longitudinal beam (section steel), 3, a transverse supporting rod (section steel), 4, a first cross beam (section steel), 5, a second cross beam (section steel), 6, a hanging rod (lifting lug), 7, a first hook, 7 ', a second hook, 8, a first bolt seat, 8', a second bolt seat, 9, a first bolt, 9', a second bolt, 10, a first pin shaft, 11, a first pulling rope, 11', a second pulling rope, 12, a box girder side mold, 13, an upper cross beam, 14, a side mold middle supporting column and 15 steel wire ropes.
Detailed description of the preferred embodiments
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout.
In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "side", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate that the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "a number" or "a number" means two or more unless explicitly specified otherwise.
In the description of the present invention, "equally spaced" means that two or more spaced distances are the same or equal unless otherwise specifically limited.
The technical scheme and the beneficial effects of the invention are clearer and clearer by further describing the specific embodiment of the invention with the accompanying drawings of the specification. The embodiments described below are exemplary and are intended to be illustrative of the invention, but are not to be construed as limiting the invention.
Referring to fig. 1 and 2, a first supporting leg 1 and a second supporting leg 1 'are respectively made of section steel, two ends of a transverse supporting rod 3 are respectively welded at the bottom ends of the first supporting leg 1 and the second supporting leg 1', and a first hook 7 and a second hook 7 'are respectively welded at the lower parts of the first supporting leg 1 and the second supporting leg 1', so that a vertical supporting frame is formed.
Welding two ends of a first cross beam 4 on the inner side surfaces of the left ends of a first longitudinal beam 2 and a second longitudinal beam 2', respectively, welding two ends of a second cross beam 5 on the inner side surfaces of the right ends of the first longitudinal beam 2 and the second longitudinal beam 2', welding the left ends of the first longitudinal beam 2 and the second longitudinal beam 2 'on the right side surfaces of the upper ends of a first supporting leg 1 and a second supporting leg 1', and welding a first triangular reinforcing steel plate a on the side surface of the joint of the first longitudinal beam 2 and the first supporting leg 1; the second triangular reinforcing steel plate is welded on the side face of the joint of the second longitudinal beam 2 'and the second supporting leg 1'; two ends of a hanging rod (lifting lug) 6 made of steel plates are respectively welded between the first cross beam 4 and the second cross beam 5, and hanging hook holes with equal intervals are arranged on the hanging rod 6; during hoisting, different hook holes (hoisting points) are selected according to different weights of the templates.
Referring to fig. 3, a first bolt seat 8 and a second bolt seat 8 'are respectively arranged on the first longitudinal beam 2 and the second longitudinal beam 2', and a first bolt 9 and a second bolt 9 'are respectively inserted into the first bolt seat 8 and the second bolt seat 8'.
Before hoisting the prefabricated box girder side mold 12, firstly pulling out the first bolt 9 and the second bolt 9 'from the first bolt seat 8 and the second bolt seat 8'; after a first hook 7 and a second hook 7 ' in the vertical lifting appliance for the side die of the prefabricated box girder enter the lower part of the upper beam 13 of the side die of the prefabricated box girder to hang the upper beam 13 of the side die of the prefabricated box girder, a first bolt 9 and a second bolt 9' are respectively inserted into a first bolt seat 8 and a second bolt seat 8', and a first beam 4 in the side die of the prefabricated box girder is controlled on the vertical lifting appliance for the side die of the prefabricated box girder, so that the safety of lifting the side die of the prefabricated box girder is further ensured.
Referring to fig. 4, a first pin shaft 10 and a second pin shaft are respectively arranged at the upper parts of the first supporting leg 1 and the second supporting leg 1', one ends of the first traction rope 11 and the second traction rope 11' are respectively connected to the first pin shaft 10 and the second pin shaft, and the other ends are respectively connected with a hook.
Before hoisting the prefabricated box girder side moulds 12, when a first hook 7 and a second hook 7' in the vertical lifting appliance of the prefabricated box girder side moulds enter the lower part of an upper cross beam 13 of the prefabricated box girder side moulds to hang behind the upper cross beam 13 of the prefabricated box girder side moulds; the hooks at the other ends of the first traction rope 11 and the second traction rope 11' are respectively hung on the first cross beam 4 in the prefabricated box girder side mould, the prefabricated box girder side mould is controlled on the prefabricated box girder side mould vertical lifting appliance, and the safety of lifting the prefabricated box girder side mould is further ensured.
The hoisting method comprises the following steps: in the process of first hoisting the prefabricated box girder side mold 12, selecting a hook hole on the hanging rod 6 according to the weight of the prefabricated box girder side mold 12, wherein the heavier the prefabricated box girder side mold 8 is, the farther the hook hole on the hanging rod 6 is selected from the first cross beam 4; after the hook hole on the hanging rod 6 is determined, the hanging hook at the lower end of the steel wire rope 15 is hooked into the hook hole, then the vertical lifting appliance of the side die of the prefabricated box girder is lifted to the back of the side die 12 of the prefabricated box girder and is aligned with the middle support column 14 of the side die of the prefabricated box girder, so that the first hook 7 and the second hook 7 'enter the lower part of the upper cross beam 13 of the side die of the prefabricated box girder, then the steel wire rope 15 of the lifting appliance is lifted and tightened, and the first hook 7 and the second hook 7' are hung on the upper cross beam 13 of the side die of the prefabricated box girder; and continuously hoisting to tighten the steel wire rope 15, enabling the sling to obliquely abut against the middle support column 14 of the side mold, preventing the prefabricated box girder side mold 12 from longitudinally moving, then hoisting the prefabricated box girder side mold 12 to the beam-making pedestal position, lowering the prefabricated box girder side mold 12, and withdrawing the sling to hoist the next side mold.
In the process of second hoisting of the prefabricated box girder side mold 12, a first hook 7 and a second hook 7' in the vertical hoisting tool of the prefabricated box girder side mold are hung on an upper cross beam 9 of the prefabricated box girder side mold; and a first bolt 9 and a second bolt 9' are respectively inserted into the first bolt seat 8 and the second bolt seat 8', or hooks at the other ends of a first pulling rope 11 and a second pulling rope 11' are respectively hung on a first cross beam 4 in the prefabricated box girder side mould, and the first cross beam 4 in the prefabricated box girder side mould is controlled on a vertical lifting appliance of the prefabricated box girder side mould.
Claims (3)
1. A vertical lifting appliance for a prefabricated box girder side mold comprises supporting legs, longitudinal beams, transverse supporting rods, hanging rods, hooks, box girder side molds, an upper cross beam, a middle supporting column, a steel wire rope, a bolt seat, a pin column and a traction rope; the method is characterized in that: respectively manufacturing a first supporting leg and a second supporting leg by using profile steel, respectively welding two ends of a transverse supporting rod at the bottom ends of the first supporting leg and the second supporting leg, and respectively welding a first hook and a second hook at the lower parts of the first supporting leg and the second supporting leg; welding two ends of a first cross beam on the inner side surfaces of the left ends of a first longitudinal beam and a second longitudinal beam respectively, welding two ends of a second cross beam on the inner side surfaces of the right ends of the first longitudinal beam and the second longitudinal beam respectively, welding the left ends of the first longitudinal beam and the second longitudinal beam on the side surfaces of the upper ends of a first supporting leg and a second supporting leg respectively, and welding a first triangular reinforcing steel plate on the side surface of the joint of the first longitudinal beam and the first supporting leg; the second triangular reinforcing steel plate is welded on the side face of the joint of the second longitudinal beam and the second supporting leg; two ends of a hanging rod made of a steel plate are welded between the first cross beam and the second cross beam, and a round hole is formed in the hanging rod; and selecting different hook holes according to different weights of the templates.
2. The vertical lifting appliance for the side die of the prefabricated box girder as claimed in claim 1, wherein: the first longitudinal beam and the second longitudinal beam are respectively provided with a first bolt seat and a second bolt seat, and the first bolt and the second bolt are respectively inserted into the first bolt seat and the second bolt seat.
3. The vertical lifting appliance for the side die of the prefabricated box girder as claimed in claim 1, wherein: the upper parts of the first supporting leg and the second supporting leg are respectively provided with a first pin shaft and a second pin shaft, one ends of the first traction rope and the second traction rope are respectively connected to the first pin shaft and the second pin shaft, and the other ends of the first traction rope and the second traction rope are respectively connected with a hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010370564.XA CN111410117A (en) | 2020-05-05 | 2020-05-05 | Vertical lifting appliance for side mold of prefabricated box girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010370564.XA CN111410117A (en) | 2020-05-05 | 2020-05-05 | Vertical lifting appliance for side mold of prefabricated box girder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111410117A true CN111410117A (en) | 2020-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010370564.XA Pending CN111410117A (en) | 2020-05-05 | 2020-05-05 | Vertical lifting appliance for side mold of prefabricated box girder |
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| CN (1) | CN111410117A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113148827A (en) * | 2021-04-23 | 2021-07-23 | 安徽华骅桥梁设备制造有限公司 | Box girder steel template lifting appliance |
-
2020
- 2020-05-05 CN CN202010370564.XA patent/CN111410117A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113148827A (en) * | 2021-04-23 | 2021-07-23 | 安徽华骅桥梁设备制造有限公司 | Box girder steel template lifting appliance |
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