CN216918418U - High-altitude non-landing support dismantling system - Google Patents
High-altitude non-landing support dismantling system Download PDFInfo
- Publication number
- CN216918418U CN216918418U CN202220637565.0U CN202220637565U CN216918418U CN 216918418 U CN216918418 U CN 216918418U CN 202220637565 U CN202220637565 U CN 202220637565U CN 216918418 U CN216918418 U CN 216918418U
- Authority
- CN
- China
- Prior art keywords
- support
- main beam
- pulley
- steel cable
- landing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
A high-altitude non-landing support dismantling system comprises a main beam and a support to be dismantled, wherein the support to be dismantled is arranged on the main beam, a winch is placed on the main beam, a pulley block connected with the winch through a steel cable is arranged below the winch, and a preformed hole for allowing the steel cable to penetrate through is formed in the main beam; the pulley block comprises a movable pulley and a fixed pulley which are connected through a steel cable, and the movable pulley is oppositely arranged on two sides of the fixed pulley; a lifting hook is arranged on the movable pulley, and a rope connected with the bracket to be disassembled is arranged on the lifting hook; a side pulling device corresponding to the bracket to be disassembled is arranged on one side of the main beam; compared with the prior art, the high-altitude non-landing cantilever support dismantling operation is carried out, the same effect of dismantling a large crane on a bridge after the bridge is closed can be achieved, the problems that the ground construction space is limited and the high-altitude dismantling risk is high are solved, the safety problem and the appearance quality during dismantling construction are effectively controlled, and the construction cost is saved.
Description
Technical Field
The invention relates to the technical field of bridge engineering, in particular to a high-altitude non-landing support dismantling system.
Background
At present, with the rapid development of the transportation industry of China, under the requirement of high speed in counties and counties, expressways continuously extend to mountainous areas, concrete cable-stayed bridges in the mountainous areas are gradually built, the construction method of the cable-stayed bridges in the mountainous areas has the characteristics of the construction method, in the construction of removing 0# section supports of a main beam of a conventional cable-stayed bridge, the supports are removed by adopting methods such as tower cranes or truck cranes and the like for cable-stayed bridges with smaller height and floor type supports, but in the construction of removing the supports of large cable-stayed bridges in the mountainous areas, the method has certain limitations, such as hundreds of meters of height above the ground of the main beam, limited space of the site, high-altitude non-floor type suspension supports for the 0# section construction, overlarge weight of single beams of the supports, insufficient lifting weight and lifting distance of the truck, and the operation can not be realized if the large truck crane is selected under the limitation of the terrain of the mountainous areas.
In the prior art, the support is generally required to be dismantled after the bridge main body is closed in consideration of the ground height of the support. Because the support weight is big, need rent large-scale loop wheel machine equipment and demolish, transfer on the bridge floor, synthesize and select to adopt 2 80t loop wheel machines to demolish the operation.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides the high-altitude non-landing support dismantling system which is safe, reliable, convenient and fast to construct, low in mechanical equipment investment and low in requirements on construction environments.
In order to achieve the purpose, the invention adopts the following technical scheme: a high-altitude non-landing support dismantling system comprises a main beam and a support to be dismantled, wherein the support to be dismantled is arranged on the main beam, a winch is placed on the main beam, a pulley block connected with the winch through a steel cable is arranged below the winch, and a preformed hole for allowing the steel cable to penetrate through is formed in the main beam; the pulley block comprises a movable pulley and a fixed pulley which are connected through a steel cable, and the movable pulley is oppositely arranged on two sides of the fixed pulley; a lifting hook is arranged on the movable pulley, and a rope connected with the bracket to be disassembled is arranged on the lifting hook; and a side pulling device corresponding to the support to be disassembled is arranged on one side of the main beam.
As a preferable scheme of the invention, the pulley blocks are oppositely arranged at two ends of the bracket to be dismounted, and the pulley blocks which are oppositely arranged are provided with corresponding winches.
As a preferable scheme of the invention, the fixed pulley is fixedly connected to the bottom of the main beam, and the movable pulley which is oppositely arranged is positioned below the fixed pulley.
As a preferable scheme of the invention, one movable pulley in the pulley block is directly connected with the winch through a steel cable, and the other movable pulley is connected with the main beam through the steel cable.
In a preferred embodiment of the present invention, the movable pulleys are disposed at the same level.
As a preferable scheme of the invention, the main beam is provided with a support rod inserted in the steel cable.
In a preferred embodiment of the present invention, the rope of the hook is connected to the top of the stand to be dismantled.
As a preferable scheme of the invention, the side pulling device comprises a jack, a chain block and a truck crane.
As a preferable scheme of the present invention, the jack is disposed at one side of the bracket to be disassembled, and the jack abuts against one side of the bracket to be disassembled.
As a preferable scheme of the invention, a lifting lug matched with the chain block or the truck crane is formed on the bracket to be disassembled.
Compared with the prior art, the invention has the beneficial effects that:
1. the bracket to be disassembled is laterally moved through the lateral pulling device, so that the bracket to be disassembled is ensured to laterally move until the bracket to be disassembled moves out of the main beam, the bracket to be disassembled is placed under the action of a winch and a pulley block, and the movable pulley is in an inclined state in the lateral moving process of the bracket to be disassembled under the action of the movable pulley, so that the requirement on the stability of the pulley block can be met;
2. the high-altitude non-landing cantilever support dismantling operation is carried out, the same effect of dismantling a large crane on an upper bridge after the bridge is closed can be achieved, the problems that the ground construction space is limited and the high-altitude dismantling risk is high are solved, the safety problem and the appearance quality during dismantling construction are effectively controlled, and the construction cost is saved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the connection of a movable sheave to a hook;
FIG. 3 is an enlarged view of a portion of FIG. 1 at A;
reference numerals: the main beam 1, the preformed hole 1-1, the support 2 to be dismantled, the winch 3, the movable pulley 4, the fixed pulley 5, the lifting hook 6 and the support rod 7.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings.
As shown in fig. 1-3, a high-altitude non-landing support dismantling system comprises a main beam 1 and a support 2 to be dismantled, wherein the support 2 is arranged on the main beam 1, a winch 3 is placed on the main beam 1, a pulley block connected with the winch 3 through a steel cable is arranged below the winch 3, and a preformed hole 1-1 for the steel cable to pass through is formed in the main beam 1; the pulley block comprises a movable pulley 4 and a fixed pulley 5 which are connected through a steel cable, and the movable pulley 4 is oppositely arranged on two sides of the fixed pulley 5; a lifting hook 6 is arranged on the movable pulley 4, and a rope connected with the bracket 2 to be disassembled is arranged on the lifting hook 6; and a side pulling device corresponding to the support 2 to be disassembled is arranged on one side of the main beam 1.
Hoist engine 3 places on girder 1, and hoist engine 3 is the mechanical equipment who uses in the bridge work progress, and the vacant time during the maintenance of the concrete of make full use of girder 1 carries out the setting of hoist engine 3, in hoist engine 3's use, highly adjust movable pulley 4, it is concrete, put outward through hoist engine 3 to the cable wire, play the decline to movable pulley 4, otherwise, through the recovery of hoist engine 3 to the cable wire, play the rise to movable pulley 4, thereby realize the lift to lifting hook 6 in step, realize treating the lift of tearing open support 2.
The preformed hole 1-1 is reserved in the pouring process of the main beam 1 and is set according to the size of the main beam 1 and the size of the support 2 to be detached, and the preformed hole 1-1 is used for penetrating a steel cable, so that the main beam 1 does not need to be punched after the winch 3 is set.
The assembly pulley sets up relatively in treating tearing open 2 both ends of support, and is equipped with corresponding hoist engine 3 on the assembly pulley of relative setting, under the effect of assembly pulley, treats to tear open 2 both ends of support and hoist to ensure to treat the stability of tearing open 2 both ends of support in the lifting by crane in-process, the assembly pulley of relative setting all controls through corresponding hoist engine 3, under the synchro-operation of hoist engine 3, can realize treating the synchronous lift of tearing open support 2.
Fixed pulley 5 fixed connection is in girder 1 bottom, and movable pulley 4 that sets up relatively is located fixed pulley 5 below, and fixed pulley 5 passes through bolt fixed connection in girder 1 bottom, and movable pulley 4 goes up and down along with 3 work of hoist engine.
One movable pulley 4 in the pulley block is directly connected with the winch 3 through a steel cable, the other movable pulley 4 is connected with the main beam 1 through the steel cable, and the movable pulleys 4 which are oppositely arranged are positioned on the same horizontal height.
In the actual use process, the steel cable is collected and released under the action of the winch 3, and in the collecting and releasing process, the movable pulleys 4 which are oppositely arranged are always positioned on the same horizontal height under the action of gravity, so that the lifting hooks 6 are ensured to be positioned on the same horizontal height, and the lifting of the support 2 to be detached is facilitated.
The main beam 1 is provided with a support rod 7 inserted in the steel cable, the support rod 7 is abutted against the upper surface of the main beam 1, and the steel cable is supported under the action of the support rod 7, so that the pulley block is supported.
The rope of lifting hook 6 is connected in waiting to tear open the support 2 top, waits to tear open and is formed with the lug that corresponds with the rope on the support 2, realizes waiting to tear open the lift of support 2 under the effect of rope and lifting hook 6.
The side pulling device comprises a jack, a chain block and a truck crane, the jack is arranged on one side of the support 2 to be dismounted, the jack is abutted against one side of the support 2 to be dismounted, and a lifting lug matched with the chain block or the truck crane is formed on the support 2 to be dismounted.
The side is drawn the device and is not only limited to jack, chain block and truck crane, and the side is drawn the device and is used for moving to wait to tear support 2 side ways open, ensures to wait to tear support 2 side ways open, and outside waiting to tear support 2 and move to girder 1 to will wait to tear support 2 open and transfer under the effect of hoist engine 3 and assembly pulley, under movable pulley 4's effect, wait to tear support 2 open and in the side ways movement in-process, movable pulley 4 is the tilt state, can satisfy assembly pulley stability demand.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the reference numerals in the figures are used more here: the main beam 1, the preformed hole 1-1, the bracket 2 to be disassembled, the winch 3, the movable pulley 4, the fixed pulley 5, the lifting hook 6, the support rod 7 and other terms are used, but the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (10)
1. A high-altitude non-landing support dismantling system comprises a main beam (1) and a support (2) to be dismantled, wherein the support (2) is arranged on the main beam (1), and is characterized in that a winch (3) is placed on the main beam (1), a pulley block connected with the winch (3) through a steel cable is arranged below the winch (3), and a reserved hole (1-1) for the steel cable to pass through is formed in the main beam (1); the pulley block comprises a movable pulley (4) and a fixed pulley (5) which are connected through a steel cable, and the movable pulley (4) is oppositely arranged on two sides of the fixed pulley (5); a lifting hook (6) is arranged on the movable pulley (4), and a rope connected with the bracket (2) to be disassembled is arranged on the lifting hook (6); and a side pulling device corresponding to the support (2) to be disassembled is arranged on one side of the main beam (1).
2. The high-altitude non-landing support dismantling system according to claim 1, wherein the pulley blocks are oppositely arranged at two ends of the support (2) to be dismantled, and the oppositely arranged pulley blocks are provided with corresponding winches (3).
3. The high-altitude non-landing support dismantling system according to claim 1, wherein the fixed pulleys (5) are fixedly connected to the bottom of the main beam (1), and the movable pulleys (4) which are oppositely arranged are located below the fixed pulleys (5).
4. The high-altitude non-landing support dismantling system according to claim 3, wherein one movable pulley (4) in the pulley block is directly connected with the winch (3) through a steel cable, and the other movable pulley (4) is connected with the main beam (1) through a steel cable.
5. A high altitude non-landing leg dismantling system according to claim 4 characterised in that the oppositely arranged movable pulleys (4) are located at the same level.
6. The high-altitude non-landing support dismantling system according to claim 1, wherein the main beam (1) is provided with a support rod (7) inserted in the steel cable.
7. A high altitude non-landing leg demolition system according to claim 1, characterized in that the rope of the hook (6) is connected to the top of the leg (2) to be demolished.
8. The high altitude non-landing leg dismantling system according to claim 1, wherein said side pulling means comprises a jack, a chain block and a truck crane.
9. The high-altitude non-landing support dismantling system according to claim 8, wherein the jack is arranged on one side of the support (2) to be dismantled and abuts against one side of the support (2) to be dismantled.
10. The high-altitude non-landing support dismantling system according to claim 8, wherein the support (2) to be dismantled is formed with lifting lugs adapted to chain blocks or truck cranes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220637565.0U CN216918418U (en) | 2022-03-23 | 2022-03-23 | High-altitude non-landing support dismantling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220637565.0U CN216918418U (en) | 2022-03-23 | 2022-03-23 | High-altitude non-landing support dismantling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216918418U true CN216918418U (en) | 2022-07-08 |
Family
ID=82229284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220637565.0U Active CN216918418U (en) | 2022-03-23 | 2022-03-23 | High-altitude non-landing support dismantling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216918418U (en) |
-
2022
- 2022-03-23 CN CN202220637565.0U patent/CN216918418U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110685433A (en) | Chimney construction device and construction method applying hydraulic lifting and rollover technology | |
| CN211286601U (en) | Chimney construction device applying hydraulic lifting and rollover technology | |
| CN113882281B (en) | Hanging basket walking system for bridge cantilever construction and operation method | |
| CN205387439U (en) | Mast hoisting accessory | |
| CN106144929A (en) | One population hoist device and construction method | |
| CN218201897U (en) | Sliding and hoisting construction device | |
| CN216918418U (en) | High-altitude non-landing support dismantling system | |
| CN110409803B (en) | Hoisting method for disassembling central drum ring of hydraulic mold lifting device | |
| CN103255767A (en) | Faceplate sliding formwork with traveling device | |
| CN108545629B (en) | Utilize the construction method of tower crane lifting girder truss | |
| CN212687392U (en) | Cable crane hoisting device for bridge erection | |
| CN213653209U (en) | Integrated construction movable platform for bridge flange plate | |
| CN111392589B (en) | Application method of attached lifting and transporting device for dismantling concrete support beam | |
| CN104249979A (en) | Guide rail type self-climb slewing crane | |
| CN212866926U (en) | Movable supporting beam dismounting device | |
| CN209816682U (en) | Bridge steel box girder aerial working operation platform | |
| CN210193239U (en) | Supplementary portal frame device of dismantling construction tower crane counterweight | |
| CN203129148U (en) | Panel slide mold with walking devices | |
| CN209854554U (en) | Supplementary car of installing and removing of template | |
| CN104860212A (en) | Micro crane | |
| CN201857225U (en) | Hoisting device for bridge crane frame | |
| CN105672910B (en) | Oil pipe traction lifting Aided Machine | |
| CN217677624U (en) | Quick-mounting platform for overhauling converter | |
| CN214576152U (en) | Water tower barrel material lifting device | |
| CN218346884U (en) | Partition plate construction auxiliary device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |