CN219860190U

CN219860190U - Bridge engineering precast box girder wet joint die block installation hoisting device

Info

Publication number: CN219860190U
Application number: CN202321005903.XU
Authority: CN
Inventors: 张泽国; 周兴兰; 熊小香; 朱军; 张翔
Original assignee: China Second Metallurgy Group Co Ltd
Current assignee: China Second Metallurgy Group Co Ltd
Priority date: 2023-04-28
Filing date: 2023-04-28
Publication date: 2023-10-20
Anticipated expiration: 2033-04-28

Abstract

The utility model discloses a lifting device for installing a wet joint bottom die of a prefabricated box girder of a bridge engineering, which comprises supporting frames and lifting mechanisms, wherein the lifting mechanisms are positioned between the supporting frames, the supporting frames are connected with the lifting mechanisms, the lifting mechanisms can rotate around the axes of the supporting frames, and the lengths of the supporting frames can be changed in the vertical and horizontal directions. According to the utility model, the construction efficiency is improved, the supporting plate can be anchored by the expansion screw to improve the stability, safety and reliability of the device, and the sleeve matched with the central shaft is adopted to greatly improve the construction lifting and installation efficiency and the work enthusiasm from the labor saving angle; the construction cost is reduced: the grip rod is rotated by a worker, the central shaft is linked to rotate, the steel wire rope is wound around the support rod to form a cylinder structure so as to achieve lifting of the bottom die, lifting or hoisting is achieved on vertical displacement, the tire automobile crane is replaced, and the cost caused by mechanical work is avoided; simple assembly and disassembly: the components are assembled components, and the parts are welded and connected by bolts, so that the assembly and disassembly are easy, the transportation is convenient, and the turnover is convenient.

Description

Bridge engineering precast box girder wet joint die block installation hoisting device

Technical Field

The utility model relates to the field of building machinery, in particular to a lifting device for installing a wet joint bottom die of a prefabricated box girder of a bridge engineering.

Background

The common bridge engineering precast box girder wet joint bottom die hoisting adopts worker cooperation and manually pulls the steel wire rope, so that the bottom die is forcedly pulled to the bottom of the wet joint by the matched material under the bridge. Or the tire and the automobile crane are matched for installation, the steel wire rope of the automobile crane penetrates into the material stacking area under the bridge from the wet joint position, the steel wire rope is easy to wind the wet joint steel bar in the operation process, great potential safety hazards are brought, the hoisting material process speed is slow, the mechanical shack leasing cost is lost, and the avoided secondary mechanical cost is generated, so that the work enthusiasm of operators is also reduced.

Disclosure of Invention

The utility model aims to solve the problems in the background art and provides a lifting device for installing a wet joint bottom die of a bridge engineering precast box girder, which can improve the construction efficiency and reduce the construction cost.

The aim of the utility model is mainly realized by the following technical scheme:

the utility model provides a bridge engineering precast box girder wet joint die block installation hoisting device, includes support frame and elevating system, elevating system is located between the support frame, and the support frame all is connected with elevating system, and elevating system can rotate round self axis, and the support frame can carry out perpendicular and horizontal direction change length. At present, two modes of hanging a bottom die for a wet joint of a precast box girder of a bridge engineering are common, one mode is that workers are matched with the bottom die, and a steel wire rope is manually dragged, so that a material matched with the bottom die under the bridge is forcedly dragged to the bottom of the wet joint. The other type adopts the cooperation installation of tire automobile crane, and the wire rope of automobile crane penetrates to the material stack area under the bridge from wet seam position, and wire rope twines wet seam reinforcing bar easily in the operation in-process brings very big potential safety hazard, and hoist and mount material process speed is slow, leads to machinery to hang over the worker and lease expense to lose, produces the secondary machinery expense that can avoid to also reduce operating personnel work enthusiasm. In order to solve the problem, the technical scheme designs a lifting device for installing a wet joint bottom die of a bridge engineering precast box girder, which comprises a supporting frame and a lifting mechanism, wherein the lifting mechanism is arranged between the supporting frames, the supporting frames are connected with the lifting mechanism, the lifting mechanism can rotate around an axis of the supporting frames, and the supporting frames can change the length in the vertical and horizontal directions. The roller supporting sleeve of the lifting mechanism is greatly lifted from a labor-saving angle, the construction lifting installation efficiency and the work enthusiasm are improved, the supporting frame can be used for vertically and horizontally changing the length, the direction adjustment is realized, the lifting or hoisting is realized on vertical displacement, and the mechanical work cost is avoided.

Further, the support frame comprises a first support cylinder, a second support cylinder, a third support cylinder and a fourth support cylinder, the fourth support cylinder is fixed with the lifting mechanism, the bottom end of the second support cylinder is inserted into the first support cylinder and can move in the first support cylinder, the top end of the second support cylinder is inserted into the third support cylinder and can move in the third support cylinder, one end, far away from the lifting mechanism, of the fourth support cylinder is inserted into the third support cylinder and can move in the third support cylinder, and the third support cylinder is bent by 90 degrees. After the supporting cylinder III is bent, the supporting cylinder II moves in the supporting cylinder I to realize vertical adjustment, and the supporting cylinder IV moves in the supporting cylinder III to realize horizontal adjustment. Therefore, the position adjustment requirement is met, the position locking and fixing is needed to be considered after adjustment, and a plurality of locking holes are formed in the side walls of the first supporting cylinder, the second supporting cylinder, the third supporting cylinder and the fourth supporting cylinder, locking pins are arranged in the locking holes, and the locking pins can be inserted into the corresponding locking holes to be locked.

Further, in order to increase stability simultaneously, a supporting plate is arranged at the bottom of the first supporting cylinder, and the bottom end of the first supporting cylinder is vertically fixed at the center of the top of the supporting plate. The cross section of backup pad is great, can install the inflation screw anchor in the backup pad, improves device stability and safe and reliable.

Further, the lifting mechanism comprises a central shaft, a sleeve is sleeved on the outer wall of the central shaft, the central shaft can rotate in the sleeve along the axis of the central shaft, and the supporting cylinder IV is fixed with the outer wall of the sleeve. The outer wall outside of center pin is provided with the support ring, is provided with the support column between support ring and the center pin, and the support column is fixed with support ring and center pin simultaneously, and the support ring is located between the sleeve. A plurality of support rods are arranged between the support rings, two ends of each support rod are respectively fixed with the support rings, and the center of each support rod is close to the center of the central shaft. Through this kind of structure setting, the center pin is as the roller bearing, and supporting sleeve promotes greatly from laborsaving angle, improves construction and promotes installation effectiveness and work enthusiasm, and the bracing piece forms the cylinder structure to the center part indent, wire rope's winding when being convenient for promote.

Further, a positioning ring is fixed on one of the support rods. The locating ring protrudes out, and wire rope one end is fixed and pass the locating ring with the locating ring, realizes the fixed to wire rope, prevents that it from droing.

Further, the outer wall of the central shaft is sleeved with a fixing ring, the fixing rings are fixed on the outer wall of the central shaft, the sleeve is positioned between the fixing rings, and a plurality of holding rods are arranged on the outer wall of the fixing rings. The grip is easy for the operator to hold, thereby rotating the central shaft to lift the material.

In conclusion, compared with the prior art, the utility model has the following beneficial effects:

1. the construction efficiency is improved: the supporting plate can be anchored through the expansion screw to improve the stability and the safety and reliability of the device, and the supporting sleeve of the central shaft is adopted to greatly improve the labor-saving angle, so that the construction and the installation efficiency and the work enthusiasm are improved.

2. The construction cost is reduced: through workman's rotatory holding rod, the center pin of linkage rotates, and wire rope winding bracing piece forms the cylinder structure and reaches the promotion die block, promotes or hoist and mount on vertical displacement, replaces tire automobile crane, avoids mechanical work to produce the expense.

3. Simple assembly and disassembly: the components are assembled components, and the parts are welded and connected by bolts, so that the assembly and disassembly are easy, the transportation is convenient, and the turnover is convenient.

Drawings

The accompanying drawings, which are included to provide a further understanding of embodiments of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model. In the drawings:

fig. 1 is a schematic structural view of the present utility model.

The names corresponding to the reference numerals in the drawings are:

the device comprises a 1-supporting plate, a 2-central shaft, a 3-fixing ring, a 4-holding rod, a 5-supporting ring, a 6-steel wire rope, a 7-positioning ring, an 8-supporting rod, a 9-sleeve, a 10-locking hole IV, a 11-supporting cylinder IV, a 12-supporting cylinder III, a 13-locking pin II, a 14-supporting cylinder II, a 15-locking hole II, a 16-locking pin I, a 17-locking hole I and a 18-supporting cylinder I.

Detailed Description

For the purpose of making apparent the objects, technical solutions and advantages of the present utility model, the present utility model will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present utility model and the descriptions thereof are for illustrating the present utility model only and are not to be construed as limiting the present utility model.

The technical field of the installation and construction of the prefabricated box girder wet joints and the prefabricated box girder diaphragm plates in the common small, medium, large and extra-large bridge engineering is provided. As shown in fig. 1, the present embodiment includes four supporting frames and a lifting mechanism, the supporting frames are four groups, the lifting mechanism is located between the four groups of supporting frames, the supporting frames are all connected with the lifting mechanism, each group of supporting frames includes a first supporting cylinder 18, a second supporting cylinder 14, a third supporting cylinder 12 and a fourth supporting cylinder 11, the fourth supporting cylinder 11 and the lifting mechanism are fixed, the bottom end of the second supporting cylinder 14 is inserted into the first supporting cylinder 18 and can move in the first supporting cylinder 18, the top end of the second supporting cylinder 14 is inserted into the third supporting cylinder 12 and can move in the third supporting cylinder 12, one end of the fourth supporting cylinder 11 far from the lifting mechanism is inserted into the third supporting cylinder 12 and can move in the third supporting cylinder 12, and the third supporting cylinder 12 is bent by 90 °. The first support cylinder 18 and the second support cylinder 14 are both vertically arranged, the fourth support cylinder 11 is horizontally arranged, after the third support cylinder 12 is bent, the vertical support cylinder and the horizontal support cylinder are connected together, the second support cylinder 14 moves in the first support cylinder 18 to realize vertical adjustment, the fourth support cylinder 11 moves in the third support cylinder 12 to realize horizontal adjustment, thereby meeting the position adjustment requirement, the length of each fourth support cylinder 11 can be reduced due to the fact that the horizontal direction can be adjusted through the plurality of fourth support cylinders 11, and position locking and fixing are needed to be considered after adjustment, therefore, a plurality of locking holes are formed in the side walls of the first support cylinder, the second support cylinder, the third support cylinder and the fourth support cylinder, the locking holes on the first support cylinder 18 are named as locking holes 17, the locking holes on the second support cylinder 14 are named as locking holes 15, the locking holes on the third support cylinder 12 are named as locking holes three, the locking holes on the fourth support cylinder 11 are named as locking holes 10, locking pins are arranged in the locking holes, the first locking pins 16 are simultaneously inserted into the corresponding locking holes 17 and the third locking holes 15, and the fourth locking pins are simultaneously inserted into the corresponding locking holes 15, and the third locking pins are simultaneously inserted into the locking holes 15 and the fourth locking holes, and the third locking holes are simultaneously inserted into the corresponding locking holes 15. The locking pin is matched with the locking hole, and the moment is adjusted or the proper operation surface is adjusted in the height and the horizontal direction, so that the wet joint hoisting construction is satisfied.

A support plate 1 is arranged at the bottom of the first support cylinder 18, and the bottom end of the first support cylinder 18 is vertically fixed at the center of the top of the support plate 1. The cross section of the supporting plate 1 is larger, and the supporting plate 1 can be provided with expansion screw anchors, so that the stability, safety and reliability of the device are improved.

The lifting mechanism comprises a central shaft 2, a sleeve 9 is sleeved on the outer wall of the central shaft 2, the central shaft 2 can rotate in the sleeve 9 along the axis of the central shaft, and a supporting cylinder four 11 is fixed with the outer wall of the sleeve 9. The outer wall outside of center pin 2 is provided with support ring 5, is provided with the support column between support ring 5 and the center pin 2, and the support column is fixed with support ring 5 and center pin 2 simultaneously, and support ring 5 is located between sleeve 9. A plurality of support rods 8 are arranged between the support rings 5, two ends of each support rod 8 are respectively fixed with the support rings 5, and the center of each support rod 8 is close to the center of the central shaft 2. Through this kind of structure setting, center pin 2 is as the roller bearing, supporting sleeve 9 promotes greatly from laborsaving angle, improves construction and promotes installation effectiveness and work enthusiasm, and bracing piece 8 forms the cylinder structure to the central part indent, wire rope 6's winding when being convenient for promote. The center shaft 2 rotates to drive the upper components to work simultaneously, so that the wet joint bottom die can be lifted to the wet joint elevation from the terrace, the bottom die is convenient for constructors to fix, the construction efficiency is improved, and the potential safety hazard of the wet joint is eliminated. The construction method solves the problem that other parts are used for mechanical construction, reduces construction cost and improves vertical transportation construction efficiency.

One support rod 8 of the support rods 8 is fixed with a positioning ring 7. The locating ring 7 protrudes and is perpendicular to the axis of the supporting rod 8, one end of the steel wire rope 6 is fixed with the locating ring 7 and penetrates through the locating ring 7, so that the steel wire rope 6 is fixed and prevented from falling off.

The outer wall of the central shaft 2 is sleeved with a fixing ring 3, the fixing rings 3 are fixed on the outer wall of the central shaft 2, a sleeve 9 is positioned between the fixing rings 3, and a plurality of holding rods 4 are arranged on the outer wall of the fixing rings 3. The holding rod 4 is convenient for an operator to hold, and the material is lifted by rotating the holding rod 4 by a worker and linking the rotation of the central shaft 2.

The scheme belongs to field assembly type, expansion screws are used as temporary measures, the expansion screws can be arranged or not, the steel support plate 1 is directly contacted with a box girder panel, and a temporary working surface is provided. The mounting and dismounting efficiency is improved, the construction lifting efficiency and the flexibility of the support are improved, the environment adaptation capability is strong, and the mounting and dismounting device is very easy to be suitable for a bottom die lifting process with large span and high height.

The foregoing detailed description of the utility model has been presented for purposes of illustration and description, and it should be understood that the utility model is not limited to the particular embodiments disclosed, but is intended to cover all modifications, equivalents, alternatives, and improvements within the spirit and principles of the utility model.

Claims

1. The utility model provides a bridge engineering precast box girder wet joint die block installation hoisting device which characterized in that: the lifting mechanism is positioned between the supporting frames, the supporting frames are connected with the lifting mechanism, the lifting mechanism can rotate around the axis of the lifting mechanism, and the supporting frames can change the length in the vertical and horizontal directions; the support frame comprises a first support cylinder (18), a second support cylinder (14), a third support cylinder (12) and a fourth support cylinder (11), wherein the fourth support cylinder (11) is fixed with the lifting mechanism, the bottom end of the second support cylinder (14) is inserted into the first support cylinder (18) and can move in the first support cylinder (18), the top end of the second support cylinder (14) is inserted into the third support cylinder (12) and can move in the third support cylinder (12), one end of the fourth support cylinder (11) far away from the lifting mechanism is inserted into the third support cylinder (12) and can move in the third support cylinder (12), and the third support cylinder (12) is bent by 90 degrees; the lifting mechanism comprises a central shaft (2), a sleeve (9) is sleeved on the outer wall of the central shaft (2), the central shaft (2) can rotate in the sleeve (9) along the axis of the central shaft, and a supporting cylinder IV (11) is fixed with the outer wall of the sleeve (9).

2. The bridge engineering precast box girder wet joint bottom die installation lifting device according to claim 1, wherein: the novel locking device is characterized in that a plurality of locking holes are formed in the side walls of the first supporting cylinder (18), the second supporting cylinder (14), the third supporting cylinder (12) and the fourth supporting cylinder (11), locking pins are arranged in the locking holes, and the locking pins can be inserted into the corresponding locking holes to be locked.

3. The bridge engineering precast box girder wet joint bottom die installation lifting device according to claim 1, wherein: the bottom of the first supporting cylinder (18) is provided with a supporting plate (1), and the bottom end of the first supporting cylinder (18) is vertically fixed at the center of the top of the supporting plate (1).

4. The bridge engineering precast box girder wet joint bottom die installation lifting device according to claim 1, wherein: the outer wall outside of center pin (2) is provided with support ring (5), is provided with the support column between support ring (5) and center pin (2), and the support column is fixed with support ring (5) and center pin (2) simultaneously, and support ring (5) are located between sleeve (9).

5. The bridge engineering precast box girder wet joint bottom die installation lifting device according to claim 4, wherein: a plurality of support rods (8) are arranged between the support rings (5), two ends of each support rod (8) are respectively fixed with the support rings (5), and the center of each support rod (8) is close to the center of the central shaft (2).

6. The bridge engineering precast box girder wet joint bottom die installation lifting device according to claim 5, wherein: one (8) of the support rods (8) is fixed with a positioning ring (7).

7. The bridge engineering precast box girder wet joint bottom die installation lifting device according to claim 1, wherein: the outer wall of the central shaft (2) is sleeved with a fixing ring (3), the outer wall of the central shaft (2) is fixed by the fixing ring (3), a sleeve (9) is positioned between the fixing rings (3), and a plurality of holding rods (4) are arranged on the outer wall of the fixing ring (3).