CN109339449B - Large-diameter cylinder internal construction platform and construction method thereof - Google Patents

Large-diameter cylinder internal construction platform and construction method thereof Download PDF

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Publication number
CN109339449B
CN109339449B CN201811450040.0A CN201811450040A CN109339449B CN 109339449 B CN109339449 B CN 109339449B CN 201811450040 A CN201811450040 A CN 201811450040A CN 109339449 B CN109339449 B CN 109339449B
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platform
extension arm
construction
tower
lifting
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CN109339449A (en
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夏春
郑运洪
剪元香
杨元红
汪艳勇
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China First Metallurgical Group Co Ltd
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China First Metallurgical Group Co Ltd
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
    • E04G2003/286—Mobile scaffolds; Scaffolds with mobile platforms mobile vertically

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The invention relates to a large-diameter cylinder internal construction platform, which comprises a base, an upright post, a rotary platform, a central tower and an extension arm, wherein the upright post is arranged on the base; the stand passes the center of cone discharging pipe at dense pond central point, and the lower extreme is direct the base and with base fixed connection, upper end with rotary platform fixed connection, center tower fixed mounting in rotary platform's upper surface, a plurality of extension arms of side-mounting of center tower, the slant angle of extension arm is unanimous with dense pond awl bottom slope. According to the construction method, the wall of the cylinder body of the thickening tank is divided into a plurality of fan-shaped construction areas, the two sides of the center are symmetrically constructed at the same time, the construction contents comprise the support and the removal of the templates, the concrete pouring and the like, and the problems that the scaffold is erected on the bottom surface of the cone of the thickening tank layer by layer in the conventional method, the erection time is long, the safety coefficient of the scaffold is low, a large amount of internal space of the cylinder body is occupied and the like are solved.

Description

Large-diameter cylinder internal construction platform and construction method thereof
Technical Field
The invention relates to the technical field of complex building construction, in particular to a large-diameter cylinder internal construction platform and a construction method thereof.
Background
The ore pulp of the leaching and purifying system of the hydrometallurgy engineering adopts a gravity settling and purifying process, and a thickener is mainly used for carrying out solid-liquid separation in a thickening tank. The thick pool has large cylinder caliber and deep cylinder, the bottom of the thick pool is of a conical structure, and during cylinder construction, a scaffold is erected on the conical bottom surface of the thick pool layer by layer in the conventional method, so that the erecting time is long, the safety coefficient of the scaffold is low, and a large amount of internal space of the cylinder is occupied.
In view of this, it is highly desirable to provide a large-diameter cylinder internal construction platform which rotates and ascends according to a construction position and a construction progress, so as to improve the scaffold construction efficiency.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a large-diameter cylinder internal construction platform and a construction method thereof, aiming at the defects of the prior art, the large-diameter cylinder internal construction platform is used for constructing the procedures of erecting and dismantling a cylinder pool wall formwork, pouring concrete and the like through a rotary construction platform which takes the center of a cylinder as an axis and vertically rises and falls.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a large-diameter cylinder internal construction platform comprises a base, an upright post, a rotary platform, a central tower and an extension arm; the stand passes the center of cone discharging pipe at dense pond central point, and the lower extreme is direct the base and with base fixed connection, upper end with rotary platform fixed connection, center tower fixed mounting in rotary platform's upper surface, a plurality of extension arms of side-mounting of center tower, the slant angle of extension arm is unanimous with dense pond awl bottom slope.
In the above scheme, the construction platform further comprises a pull rod, wherein the pull rod is a rod body with adjustable length; the extension arm install in the bottom of center tower, the pull rod is located the extension arm top, the both ends of pull rod respectively with the top of center tower and the middle part fixed connection of extension arm.
In the above scheme, the construction platform further comprises a lifting tower, a lifting device and a lifting platform, the end part of the extension arm is provided with the lifting tower, the lifting device and the lifting platform are arranged on the lifting tower, and the lifting device drives the lifting platform to lift and descend relative to the lifting tower.
In the above scheme, construction platform still includes running gear, running gear sets up in extension arm lower part, and the drive extension arm uses back taper rotary platform to rotate as the center.
In the above scheme, running gear includes drive shaft, axle bed, driving motor, shock attenuation board, sprocket, chain and gyro wheel, gyro wheel and drive shaft fixed connection, the drive shaft passes through the axle bed to be fixed in the extension arm, and driving motor passes through the shock attenuation board to be installed in extension arm one side, installs the sprocket respectively in driving motor output and the drive shaft, drives the drive shaft operation through the chain with driving motor's power to it is rotatory to drive the gyro wheel, thereby the gyro wheel is walked at dense pond awl bottom and is driven the extension arm and use back taper rotary platform to rotate as the center.
In the above scheme, rotary platform is back taper rotary platform, and back taper rotary platform includes cone reducing end, revolving stage and ball bearing, the cone reducing end with the upper end fixed connection of stand, be connected through ball bearing between revolving stage and the cone reducing end, fixed surface installs on the revolving stage center tower.
In the above scheme, the central tower is assembled by a plurality of support sections, and the support sections comprise vertical pillars, horizontal supports and inclined supports which are mutually connected.
In the above scheme, the extension arm is formed according to the slant length concatenation of dense pond conical bottom by a plurality of support sections, the support section is including interconnect's vertical support, horizontal support, diagonal bracing.
The invention also provides a construction method of the large-diameter cylinder internal construction platform, the large-diameter cylinder internal construction platform is used when a dense pool cylinder wall formwork is erected and concrete pouring construction is carried out, and the construction method comprises the following steps:
step 1, when a main body frame of the dense pool is poured, pouring a base at the circle center so as to install an upright column conveniently;
step 2, enabling the upright column to penetrate through a discharge pipe of the cone center of the thickening tank, enabling the lower end of the upright column to be connected with the base, installing an inverted cone rotating platform at the upper end of the upright column, fixedly connecting the upper surface of the inverted cone rotating platform with a central tower, installing a plurality of extension arms on the side surface of the central tower, and enabling the oblique angles of the extension arms to be consistent with the gradient of the cone bottom of the thickening tank;
step 3, installing a lifting tower and a lifting platform at the end part of the extension arm, wherein a guide rail of the lifting tower is in sliding connection with a sliding chute of the lifting platform, a pulley and an electric winch are respectively installed at the top and the bottom of the lifting tower, and the free end of a steel wire rope on the electric winch bypasses the pulley and is fixedly connected with a lifting frame of the lifting platform;
step 4, mounting a walking device at the bottom of the extension arm;
and 5, dividing the wall of the cylinder body of the thickening tank into a plurality of fan-shaped construction areas, wherein the two sides of the center are symmetrically constructed simultaneously, and the construction contents comprise the erection and the dismantling of a template and the concrete pouring.
In the method, in the step 2, a pull rod is arranged above each extension arm, two ends of each pull rod are respectively and fixedly connected with the top end of the central tower and the middle part of each extension arm, the lead screws on two sides of each pull rod can be extended or shortened simultaneously, the length of each pull rod is quickly adjusted, and the oblique angle of each extension arm is consistent with the gradient of the cone bottom.
The invention has the beneficial effects that:
1. according to the technology, an upright post penetrates through a cone center discharge pipe, the lower end of the upright post reaches a base, the upper end of the upright post is fixedly connected with an inverted cone rotating platform, the upper surface of the inverted cone rotating platform is fixedly connected with a center tower, extension arms and pull rods are arranged on four sides of the center tower, and the oblique angle of each extension arm is consistent with the gradient of a cone bottom; the end part of the extension arm is provided with a lifting tower and a lifting platform, and the lifting platform is driven to lift and descend by a lifting device; running gear sets up in extension arm below, drives the extension arm and uses back taper rotary platform as the rotation of center. The wall of the cylinder body of the thickening tank is divided into a plurality of fan-shaped construction areas, the two sides of the center are symmetrically constructed at the same time, and construction contents comprise formwork erection and dismantling, concrete pouring and the like. The problems that in a conventional method, scaffolds are erected on the conical bottom surface of the thickening tank layer by layer, the erection time is long, the safety coefficient of the scaffolds is low, a large amount of inner space of the cylinder is occupied and the like are solved.
2. The installation of center tower, extension arm and lift tower can be hoisted with the help of the tower crane in construction place, and center tower, extension arm also can adopt the built-up components of tower crane, reduce the cost of device.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic view of the overall structure of the construction platform inside the large-diameter cylinder body of the invention;
FIG. 2 is a schematic view of a central tower mounting structure of the construction platform of the present invention;
FIG. 3 is a schematic structural view of a lifting platform of the construction platform of the present invention;
FIG. 4 is a schematic structural view of a traveling device of the construction platform of the present invention;
FIG. 5 is a schematic illustration of the construction of the present invention construction platform;
FIG. 6 is a front view of FIG. 5;
fig. 7 is a schematic diagram of a thick pool barrel casting finished product.
In the figure: 10. a base; 20. a column; 30. rotating the platform; 31. a taper end; 32. a rotating table; 33. a ball bearing; 40. a central tower; 41. a support section; 411. a vertical pillar; 412. horizontally supporting; 413. obliquely supporting; 50. an extension arm; 60. a pull rod; 61. a lead screw; 62. adjusting a rod; 70. a lifting tower; 71. a guide rail; 80. a hoisting device; 81. an electric capstan; 811. a wire rope; 82. a pulley; 90. a lifting platform; 91. lifting the frame; 92. a chute; 100. a traveling device; 101. a drive shaft; 102. a shaft seat; 103. a drive motor; 104. a damper plate; 105. a sprocket; 106. a chain; 107. a roller; 200. a thickening tank; 201. a main body frame; 202. a barrel; 203. a conical bottom; 204. a sector-shaped construction area; 205. a cone center; 206. and (4) a cone center discharge pipe.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, the large-diameter cylinder internal construction platform according to a preferred embodiment of the present invention includes a base 10, a column 20, a rotary platform 30, a central tower 40, and an extension arm 50. Wherein, the upright column 20 passes through a cone center discharge pipe 206 at the central part of the thickening tank 200, the lower end thereof reaches the base 10 and is fixedly connected with the base 10, and the upper end thereof is fixedly connected with the rotary platform 30. The central tower 40 is fixedly arranged on the upper surface of the rotating platform 30, the four sides of the central tower 40 are all provided with one extension arm 50, the oblique angle of the extension arm 50 is consistent with the gradient of the cone bottom 203 of the thickening tank 200, and the extension arm 50 can rotate around the axis of the central tower 40 by applying external force slightly.
Further optimize, in this embodiment, the construction platform further includes a pull rod 60, and the pull rod 60 is a rod body with adjustable length. The extension arms 50 are mounted at the bottom end of the central tower 40, two parallel pull rods 60 are mounted above each extension arm 50, and two ends of each pull rod 60 are fixedly connected with the top end of the central tower 40 and the middle part of each extension arm 50 respectively. Specifically, the body of rod includes two lead screws 61 and the regulation pole 62 that is connected with two nuts, and the screw thread end of lead screw 61 is left-handed screw and right-handed screw respectively, matches with two nuts respectively, and when adjusting pole 62 rotation operation, the lead screw 61 of both sides can stretch out or shorten simultaneously to quick adjustment pull rod 60 length makes the slant angle of extension arm 50 unanimous with dense pond 200 awl end 203 slope.
Further preferably, in this embodiment, the construction platform further includes a lifting tower 70, a lifting device 80 and a lifting platform 90, the lifting tower 70 is installed at the end of the extension arm 50, the lifting device 80 and the lifting platform 90 are installed on the lifting tower 70, and the lifting platform 90 is driven to lift and descend by the lifting device 80. Guide rails 71 are arranged on two sides of the main body of the lifting tower 70, the lifting platform 90 is a fan-shaped structure platform, a lifting frame 91 is arranged on one side of the platform, and a sliding groove 92 is arranged between the lifting frame 91 and the guide rails 71. The hoisting device 80 comprises an electric winch 81 and a pulley 82, the pulley 82 is fixed at the top end of the lifting tower 70, the electric winch 81 is fixedly installed at the bottom of the lifting tower 70, the free end of a steel wire rope 811 on the electric winch 81 bypasses the pulley 82 and is fixedly connected with the lifting frame 91, one end of the steel wire rope 811 is connected with the electric winch 81 and is wound on the winch, the other end is a free end, and the electric winch 81 is used for driving the lifting platform 90 to ascend and descend.
Further optimize, in this embodiment, the construction platform further includes a walking device 100, and the walking device 100 is disposed at the lower portion of the extension arm 50, and drives the extension arm 50 to rotate around the rotating platform 30. Specifically, the traveling device 100 includes a driving shaft 101, a shaft seat 102, a driving motor 103, a damping plate 104, a chain wheel 105, a chain 106 and a roller 107, the roller 107 is fixedly connected with the driving shaft 101, the driving shaft 101 is fixed in the extension arm 50 through the shaft seat 102, the driving motor 103 is installed on one side of the extension arm 50 through the damping plate 104, the chain wheel 105 is installed on the output end of the driving motor 103 and the driving shaft 101 respectively, the driving shaft 101 is driven to operate by the power of the driving motor 103 through the chain 106, so that the roller 107 is driven to rotate, and the roller 107 travels at the conical bottom 203 of the thickening tank 200 so as to drive the extension arm 50 to rotate by taking the.
Further preferably, in this embodiment, the lifting platform 90 is provided with a control handle for controlling the electric winch 81 and the driving motor 103.
Preferably, in this embodiment, the rotating platform 30 is a reverse tapered rotating platform, and includes a tapered end 31, a rotating platform 32 and a ball bearing 33, the tapered end 31 is fixedly connected to the upper end of the upright column 20, the rotating platform 32 is connected to the tapered end 31 through the ball bearing 33, and the central tower 40 is fixedly mounted on the upper surface of the rotating platform 32.
Preferably, in the present embodiment, the central tower 40 is assembled by a plurality of supporting sections 41, and the supporting sections 41 include a vertical pillar 411, a horizontal support 412, and an oblique support 413 connected to each other. The bottom end of the central tower 40 is connected to the extension arm 50 and the upper end of the central tower 40 is connected to the pull rod 60.
Preferably, the tower 70 is also assembled from a plurality of support sections in this embodiment.
Further preferably, in the present embodiment, the extension arm 50 is formed by splicing a plurality of support sections 41 according to the slant length of the conical bottom 203 of the thickening tank 200, and the end of the extension arm 50 reaches the barrel 202 of the thickening tank 200.
The construction platform in the large-diameter cylinder 202 is used for erecting the formwork on the wall of the cylinder 202 in the dense pool 200 and performing concrete pouring construction, and the construction method comprises the following steps:
step 1, when the main body frame 201 of the dense pool 200 is poured, pouring the base 10 at the circle center so as to install the upright post 20.
And 2, enabling the upright column 20 to penetrate through a cone center discharge pipe 206 at the cone center 205 of the thickening tank 200, enabling the lower end of the upright column to be connected with the base 10, installing an inverted cone rotary platform 30 at the upper end of the upright column, fixedly connecting the upper surface of the inverted cone rotary platform 30 with the central tower 40, installing extension arms 50 and pull rods 60 on four sides of the central tower 40, simultaneously extending or shortening the lead screws 61 on two sides of each pull rod 60, and quickly adjusting the length of each pull rod 60 to enable the inclined angle of each extension arm 50 to be consistent with the gradient of the cone bottom 203. The installation of center tower 40, extension arm 50 and lift tower 70 can be hoisted with the help of the tower crane of construction site, and center tower 40, extension arm 50 and lift tower 70 also can adopt the built-up components of tower crane, the cost of reduction device.
And 3, mounting a lifting tower 70 and a lifting platform 90 at the end part of the extension arm 50, wherein a guide rail 71 of the lifting tower 70 is in sliding connection with a sliding groove 92 of the lifting platform 90, a pulley 82 and an electric winch 81 are respectively mounted at the top and the bottom of the lifting tower 70, and the free end of a steel wire 811 on the electric winch 81 is wound around the pulley 82 and fixedly connected with a lifting frame 91 of the lifting platform 90.
Step 4, a shaft seat 102, a driving shaft 101 and a roller 107 are installed at the bottom of the extension arm 50, a damping plate 104 and a driving motor 103 are sequentially installed on one side of the extension arm 50, chain wheels 105 are respectively installed at the output end of the driving motor 103 and the driving shaft 101, and the driving shaft 101 and the roller 107 are driven to operate by the power of the driving motor 103 through a chain 106.
And 5, dividing the wall of the cylinder 202 of the thickening tank 200 into a plurality of fan-shaped construction areas 204, symmetrically constructing the two sides of the center at the same time, wherein the construction contents comprise the erection and dismantling of templates, concrete pouring and the like.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (5)

1. A construction method of a large-diameter cylinder internal construction platform is characterized in that the large-diameter cylinder internal construction platform is used during formwork erection and concrete pouring construction of a thick pool cylinder wall, and comprises the following steps:
step 1, when a main body frame of the dense pool is poured, pouring a base at the circle center so as to install an upright column conveniently;
step 2, enabling the upright column to penetrate through a discharge pipe of the cone center of the dense pool, enabling the lower end of the upright column to be connected with the base, installing an inverted cone rotating platform at the upper end of the inverted cone rotating platform, fixedly connecting the upper surface of the inverted cone rotating platform with a central tower, installing a plurality of extension arms on the side surface of the central tower, installing a pull rod above each extension arm, enabling the pull rod to be a rod body with adjustable length, enabling two ends of each pull rod to be fixedly connected with the top end of the central tower and the middle part of each extension arm respectively, and enabling the oblique angle of each extension arm to be consistent with the gradient of the;
step 3, installing a lifting tower and a lifting platform at the end part of the extension arm, wherein a guide rail of the lifting tower is in sliding connection with a sliding chute of the lifting platform, a pulley and an electric winch are respectively installed at the top and the bottom of the lifting tower, and the free end of a steel wire rope on the electric winch bypasses the pulley and is fixedly connected with a lifting frame of the lifting platform;
step 4, mounting a walking device at the bottom of the extension arm to drive the extension arm to rotate by taking the inverted cone rotating platform as a center;
and 5, dividing the wall of the cylinder body of the thickening tank into a plurality of fan-shaped construction areas, wherein the two sides of the center are symmetrically constructed simultaneously, and the construction contents comprise the erection and the dismantling of a template and the concrete pouring.
2. The construction method of the large-diameter cylinder internal construction platform according to claim 1, wherein the traveling device comprises a driving shaft, a shaft seat, a driving motor, a damping plate, a chain wheel, a chain and a roller, the roller is fixedly connected with the driving shaft, the driving shaft is fixed in the extension arm through the shaft seat, the driving motor is installed on one side of the extension arm through the damping plate, the chain wheel is respectively installed on the output end of the driving motor and the driving shaft, the driving shaft is driven to operate by the power of the driving motor through the chain, so that the roller is driven to rotate, and the roller travels at the cone bottom of the dense pool so as to drive the extension arm to rotate around the inverted cone rotating.
3. The construction method of the large-diameter cylinder internal construction platform according to claim 1, wherein the inverted cone rotary platform comprises a cone tapered end, a rotary table and ball bearings, the cone tapered end is fixedly connected with the upper end of the upright column, the rotary table is connected with the cone tapered end through the ball bearings, and the central tower is fixedly installed on the upper surface of the rotary table.
4. The method of claim 1, wherein the central tower is assembled by a plurality of support sections, the support sections including vertical pillars, horizontal supports, and diagonal supports, which are connected to each other.
5. The construction method of the large-diameter cylinder internal construction platform as claimed in claim 1, wherein the extension arm is formed by splicing a plurality of support sections according to the oblique length of the cone bottom of the dense pool, and the support sections comprise vertical pillars, horizontal supports and oblique supports which are connected with each other.
CN201811450040.0A 2018-11-30 2018-11-30 Large-diameter cylinder internal construction platform and construction method thereof Active CN109339449B (en)

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Publication number Priority date Publication date Assignee Title
CN86201018U (en) * 1986-02-20 1987-08-26 冶金部建筑研究总院 Internal automatic lifting plateform for sphere
CN2042492U (en) * 1989-01-18 1989-08-09 建设部长沙建筑机械研究所 Dual-purpose vertical lift platform for fixing and load-lifting
CN2711308Y (en) * 2004-03-09 2005-07-20 宋玉田 Machine for automatically distributing concrete onto slope of irrigation ditch
CN201753525U (en) * 2010-05-16 2011-03-02 中铁四局集团有限公司市政工程分公司 Rotary operation platform
WO2016175339A1 (en) * 2015-04-27 2016-11-03 케이.엘.이.에스 주식회사 Maintenance work platform of wind power generator
CN206901671U (en) * 2017-06-28 2018-01-19 南阳大旗石化工程有限公司 Oil tank internal rotating elevating construction platform

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Publication number Priority date Publication date Assignee Title
CN86201018U (en) * 1986-02-20 1987-08-26 冶金部建筑研究总院 Internal automatic lifting plateform for sphere
CN2042492U (en) * 1989-01-18 1989-08-09 建设部长沙建筑机械研究所 Dual-purpose vertical lift platform for fixing and load-lifting
CN2711308Y (en) * 2004-03-09 2005-07-20 宋玉田 Machine for automatically distributing concrete onto slope of irrigation ditch
CN201753525U (en) * 2010-05-16 2011-03-02 中铁四局集团有限公司市政工程分公司 Rotary operation platform
WO2016175339A1 (en) * 2015-04-27 2016-11-03 케이.엘.이.에스 주식회사 Maintenance work platform of wind power generator
CN206901671U (en) * 2017-06-28 2018-01-19 南阳大旗石化工程有限公司 Oil tank internal rotating elevating construction platform

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Title
浓密池施工技术要点分析;陈炳成;《建材与装饰》;20150531;第57-59页 *

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