CN115538315A - Variable-diameter steel cable side-pressing type pier column self-climbing platform and climbing method thereof - Google Patents
Variable-diameter steel cable side-pressing type pier column self-climbing platform and climbing method thereof Download PDFInfo
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- CN115538315A CN115538315A CN202211222015.3A CN202211222015A CN115538315A CN 115538315 A CN115538315 A CN 115538315A CN 202211222015 A CN202211222015 A CN 202211222015A CN 115538315 A CN115538315 A CN 115538315A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
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Abstract
The application relates to the technical field of building construction, and provides a variable-diameter steel cable side-pressure pier column self-climbing platform and a climbing method thereof, wherein the variable-diameter steel cable side-pressure pier column self-climbing platform comprises a variable-diameter rack, a multi-section annular structure and a lifting device, wherein the multi-section annular structure is formed by hinging and enclosing a plurality of hinged telescopic beams end to end and is enclosed on the outer side of a pier column; the climbing system comprises a plurality of wheel set modules, each wheel set module comprises climbing wheels, each climbing wheel is contacted with the outer side of the pier after receiving the lateral pressure, and at least one climbing wheel is connected with a driving piece to realize automatic climbing of the platform; the lateral pressure system comprises a steel cable and a pretightening force assembly, wherein the steel cable surrounds the outer sides of the wheel set modules and is used for applying lateral pressure to the wheel set modules; the pretightening force component is connected with the steel cable and is used for adjusting the lateral pressure applied by the steel cable. The climbing system is arranged on the diameter-variable rack, so that the platform can automatically climb. The climbing wheel can be tightly attached to the pier column through the side pressure system, the friction wheel is increased, and the climbing safety and stability are guaranteed.
Description
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to a variable-diameter steel cable side-pressing pier column self-climbing platform and a climbing method thereof.
Background
The pouring of the bridge pier column concrete is completed, after the strength of the concrete reaches the form removal strength, the pier column concrete needs to be maintained in time after the form is removed, otherwise, the water of the concrete is evaporated, the strength of the pier column concrete is affected, shrinkage cracks are easy to occur, and the quality and the durability of the pier column are seriously affected. The shrinkage cracks appearing on the surface of the pier column concrete can lead water and oxygen in the air to enter the interior of the pier column concrete, so that the reinforcing steel bar of the pier column is corroded, the further development can lead the pier column concrete protective layer to be peeled off, and the bearing capacity of the pier column is reduced.
The existing curing of the pier column concrete is to wind a plastic film on the surface of the pier column concrete, and then water is poured into the pier column concrete, so that the humidity of the pier column concrete is kept above 90 percent, and the curing is generally finished for 14 days. However, the pier stud of the bridge is usually high, and the concrete curing of the winding material is difficult. At present, pier stud maintenance and film covering construction usually adopts a method of manual winding and covering after a bracket is erected; or a crane is adopted to suspend the maintenance film reel, and a manual station throws the lifting hook around the pier top circumference and cooperates with a crane operator to lead the reel to be spirally lowered at a constant speed, thereby finishing the pier stud film covering. Both methods increase the construction cost and cause potential safety hazards of the construction personnel during the high-altitude operation. Especially, the safety problem of pier column constructors is outstanding, the construction efficiency is low, and the early strength of the surface of the pier column concrete is seriously influenced.
Meanwhile, the prior art also provides a scheme for assisting in finishing the maintenance and the film coating by adopting a mechanical device. For example, patent publication No. CN112225019a discloses a device and a method for winding a covering film for a curing material for a pier stud, in which a winch capable of being manually operated by a single person and rotating around the pier stud is provided at the top of the pier stud, so that the curing film-coating construction can be rapidly and efficiently completed at the top of the pier manually. However, the method still has a great safety hazard in high-altitude operation. For another example, patent document CN113587828a discloses a device and a method for detecting a bridge pier, which is provided with a climbing device, including a bracket, a climbing wheel and a power motor, and realizes automatic climbing of the bracket surrounding the bridge pier. However, the supports of the device are fixed structures, and although part of the supports adopt modular splicing structures, the purpose is only to realize quick assembly and disassembly, the device still has the problems that the device cannot be applied to the piers with different diameters, the application range is limited, the device is not convenient to use in a turnover manner, the contact effect of the climbing wheel and the piers is poor, and the like.
Disclosure of Invention
In order to solve the problems in the prior art, the application provides a variable-diameter steel cable side-pressing pier column self-climbing platform and a climbing method thereof.
In a first aspect, the present invention provides a variable diameter steel cable side-pressing pier column self-climbing platform, including:
the diameter-variable machine frame comprises a multi-section annular structure formed by hinging and enclosing a plurality of hinged telescopic beams end to end, and the annular structure is used for enclosing the outer side of a pier stud;
the climbing system comprises a plurality of wheel set modules which are movably distributed on the hinged telescopic beam along the circumferential direction of the annular structure, each wheel set module comprises a climbing wheel, the climbing wheels are contacted with the outer side of the pier column after receiving the lateral pressure, and at least one climbing wheel is connected with a driving piece so as to realize the automatic climbing of the platform;
the lateral pressure system comprises a steel cable and a pretightening force assembly, wherein the steel cable surrounds the outer sides of the wheel set modules and is used for applying lateral pressure to the wheel set modules; the pretightening force assembly is connected with the steel cable and is used for adjusting the lateral pressure applied by the steel cable.
Further, the wheel set module further comprises:
a sliding sleeve is installed and movably sleeved on the hinged telescopic beam;
the wheel carrier assembly is arranged on the mounting sliding sleeve and is movably connected with the mounting sliding sleeve;
wherein the climbing wheel is arranged on the wheel frame component, and the steel cable surrounds the outer side of the wheel frame component and applies pressure to increase the friction force between the climbing wheel and the pier stud.
Furthermore, the installation sliding sleeve is provided with a bolt hole which is right opposite to the hinged type telescopic beam and a locking bolt in threaded fit with the bolt hole, and the locking bolt is in threaded fit with the bolt hole so as to fix the installation sliding sleeve on the hinged type telescopic beam or remove the fixation.
Further, the wheel carrier assembly comprises:
the climbing wheel is arranged on the wheel carrier body;
the guide hanging rod is connected with the wheel carrier body, guide through holes distributed along the side pressure direction are formed in the mounting sliding sleeve, and the guide hanging rod penetrates through the guide through holes and is movably connected with the mounting sliding sleeve;
the pulley is arranged on the wheel carrier body; the steel cable is wound around the outer side of the pulley.
Further, the climbing system further comprises a plurality of auxiliary wheel sets movably distributed along the length direction of the steel cable, wherein the auxiliary wheel sets comprise:
the auxiliary wheel frame is provided with a limiting through groove or a limiting hole, and the steel cable penetrates through the limiting through groove or the limiting hole and is used for applying lateral pressure to the auxiliary wheel frame;
the auxiliary wheels are arranged on the auxiliary wheel frame and form an opening angle space in an enclosing manner, and the opening angle space is used for enclosing the corners of the pier stud; the auxiliary wheel frame is contacted with the corner of the pier stud after the auxiliary wheel frame receives side pressure.
Further, the pretension assembly comprises:
the first connecting piece is connected with one end of the steel cable;
the second connecting piece is connected with the other end of the steel cable;
the adjusting piece is connected between the first connecting piece and the second connecting piece;
the first connecting piece, the steel cable, the second connecting piece and the adjusting piece are sequentially connected end to form a closed loop structure, and the adjusting piece adjusts the distance between the first connecting piece and the second connecting piece to adjust the loop diameter of the closed loop structure.
Furthermore, the adjusting part comprises an adjusting rod and an adjusting pipe which are matched with each other in a threaded manner, the adjusting rod is connected with the first connecting part, and the adjusting pipe is connected with the second connecting part.
Further, articulated formula telescopic beam is including girder and the telescopic beam of mutual telescopic cooperation.
Furthermore, but reducing frame still includes the corner brace, sets up the interior angle department that two articulated formula telescopic beam that articulated mutually of loop configuration formed, corner brace and one of them articulated formula telescopic beam fixed connection of this interior angle department.
Further, but the frame of reducing still includes and sets up at least one functional component on articulated formula telescopic beam, functional component includes image detection device, coating spraying device or maintenance tectorial membrane spool.
In a second aspect, the invention provides a climbing method for the self-climbing platform of the side-pressing pier column with the variable-diameter steel cable, which comprises the following steps:
the multi-section annular structure of the variable-diameter stand is surrounded on the outer side of the pier stud;
installing wheel set modules of the climbing system on the hinged telescopic beams of the variable-diameter rack;
the steel cable of the side pressure system is surrounded on the outer side of the wheel set module, and the lateral pressure applied to the wheel set module by the steel cable is adjusted by using a pretightening force assembly of the side pressure system, so that the climbing wheel of the wheel set module is contacted with the outer side of a pier after receiving the lateral pressure;
and starting at least one driving piece connected to the climbing wheel so as to realize automatic climbing of the platform.
The beneficial effects of the invention include:
through setting up the frame that can reduce the footpath into containing the multistage formula loop configuration who closes the formation by the articulated flexible roof beam end to end looks articulated, make its applicable pier stud in different diameters, application scope is wide, is convenient for have enough to meet the need the use, the cost is reduced.
The climbing system is arranged on the diameter-variable rack, so that the platform can automatically climb, and the climbing device is labor-saving and safe.
Side pressure is applied to a wheel set module of the climbing system through a side pressure system, so that a climbing wheel of the climbing system can be tightly attached to a pier column, a friction wheel is increased, and the safety and stability of climbing are ensured; in addition, the side pressure system can be matched with the diameter-variable rack, synchronous diameter change of the platform is realized, and the side pressure system can stably run for piers with different diameters. The lateral pressure system adopts the expansion or contraction of the steel cable to realize the lateral pressure adjustment, and all wheel set modules are stressed in a balanced manner and climb and descend stably. Compared with a traditional electric push rod type pressurization system, the lateral pressure system adopting the steel cable has the advantages that the weight of the steel cable is light, the structure is simple, and the carrying capacity of the climbing platform can be improved.
Drawings
Fig. 1 is a schematic perspective view of a variable diameter steel cable side-pressing pier column self-climbing platform according to the present invention.
Fig. 2 is a schematic structural view of the platform of fig. 1 installed at the outside of a pier.
Fig. 3 is a perspective view of a variable diameter gantry of the platform of fig. 1.
Fig. 4 is an enlarged schematic structural view of the diameter-variable rack in fig. 2 after being hidden.
Fig. 5 is an enlarged perspective view of one of the wheel set modules of fig. 4.
Fig. 6 is an enlarged perspective view of another wheel set module shown in fig. 4.
Fig. 7 is an enlarged perspective view of the auxiliary wheel set of fig. 4.
FIG. 8 is a schematic perspective view of a closed loop structure formed by the connection of the pretensioning element and the cable in FIG. 1.
FIG. 9 is an enlarged schematic view of the pretensioning assembly of FIG. 8.
In the figure:
1-a variable diameter frame; 1.1-articulated telescopic beams; 1.1.1-main beam; 1.1.2-telescoping beam; 1.1.3-positioning bolts; 1.2-pin shaft; 1.3-angle brace;
2-a climbing system; 2.1-installing a sliding sleeve; 2.2-power wheel group; 2.2.1-wheel carrier body; 2.2.2-climbing wheel; 2.2.3-climbing support wheel; 2.2.4-pulleys; 2.2.5-guide hanging rod; 2.3-supporting wheel set; 2.3.1-wheel carrier body; 2.3.2-climbing support wheel; 2.3.3-Pulley; 2.4-auxiliary wheel set; 2.4.1-auxiliary wheel carrier; 2.4.2-main auxiliary wheel; 2.4.3-secondary auxiliary wheel;
3-side pressure system; 3.1-steel cord; 3.2-pretightening force component; 3.2.1 — a first connector; 3.2.2-thrust bearing; 3.2.3-adjusting the rod; 3.2.4-adjusting tube; 3.2.5-a second connector; 3.2.6-bolt;
4-pier stud.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings 1 to 9 and the specific embodiments.
As shown in fig. 1, the variable diameter steel cable side pressure type pier column self-climbing platform provided by the invention comprises a variable diameter rack 1, a climbing system 2 and a side pressure system 3.
Referring to fig. 2 and 3, the variable diameter stand 1 includes a corner brace 1.3 and a multi-section ring structure. Wherein, multistage formula annular structure is articulated the encirclement by a plurality of articulated formula telescopic girder 1.1 end to end and is closed and form. The ring-shaped structure is intended to surround the outside of the abutment 4.
In this embodiment, the multi-section annular structure is a rectangular frame formed by four hinged telescopic beams 1.1 hinged end to end. Which serves as a mounting carrier for the climbing system 2.
In some embodiments, the variable diameter stand 1 further comprises at least one functional component arranged on said articulated telescopic beam 1.1, said functional component comprising an image detection device, a coating spraying device or a maintenance film reel. In actual use, which kind of functional component is installed on articulated telescopic beam 1.1 is adjusted according to the work progress of pier stud 4. The functional components adopt the existing equipment.
For example, when the pier stud 4 needs to be coated with the film, a maintenance film reel is mounted on the annular structure of the variable diameter frame 1, a maintenance film roll is sleeved on the maintenance film reel, and the maintenance film of the maintenance film roll is wound on the pier stud 4 along with the climbing of the platform. The winding work of the curing film roll may be manually performed.
When a durable coating needs to be constructed on the pier stud 4, a coating spraying device comprising a paint bucket and a nozzle is installed on the annular structure of the variable-diameter machine frame 1, and the paint in the paint bucket is sprayed on the outer side of the pier stud 4 by the nozzle. Along with the climbing of the platform, the spray head sprays evenly.
When the appearance of the pier stud 4 needs to be inspected, an image detection device comprising a camera is installed on the annular structure of the diameter-variable rack 1, the camera is used for shooting the outer vertical surface of the pier stud 4, and whether quality defects such as cracks exist or not is judged by observing and comparing images of the outer vertical surface of the pier stud 4 shot by the camera, so that the quality inspection of the appearance of the pier stud 4 is realized.
In this embodiment, the articulated telescopic beam 1.1 includes a main beam 1.1.1 and a telescopic beam 1.1.2 which are mutually matched in a telescopic manner. In this embodiment, the main beam 1.1.1 and the telescopic beam 1.1.2 are both formed steel (or aluminum alloy and other materials) rectangular pipes, and of course, the main beam 1.1.1 and the telescopic beam 1.1.2 may also be circular pipes. The inner diameter of the main beam 1.1.1 is larger than or equal to the outer diameter of the telescopic beam 1.1.2, so that the telescopic beam 1.1.2 can extend into the main beam 1.1.1, when the telescopic beam 1.1.2 continuously extends into the main beam 1.1.1, the length of the hinged telescopic beam 1.1 is shortened, and conversely, when the telescopic beam 1.1.2 continuously extends out of the main beam 1.1.1, the length of the hinged telescopic beam 1.1 is extended.
In order to realize the length-adjusting back fixing of the hinged telescopic beam 1.1, the hinged telescopic beam 1.1 further comprises a positioning bolt 1.1.3. In addition, in order to avoid the effect of mounting the functional member on the top end of the articulated telescopic beam 1.1, it is preferable to provide a positioning bolt 1.1.3 at the bottom end of the articulated telescopic beam 1.1, as shown in fig. 3. The schematic view of the variable diameter housing 1 in fig. 3 is actually a schematic view of the variable diameter housing 1 in fig. 1 after the variable diameter housing 1 is turned over by 180 degrees, and the bottom end of the variable diameter housing 1 in fig. 1 is exposed. It can be seen from fig. 3 that each of the articulated telescopic beams 1.1 is provided with a positioning bolt 1.1.3, correspondingly, the main beam 1.1.1 of the articulated telescopic beam 1.1 is provided with a bolt hole in threaded connection with the positioning bolt 1.1.3, and the corresponding telescopic beam 1.1.2 is provided with a plurality of positioning holes along the length direction thereof, the diameter of each positioning hole is larger than or equal to that of the bolt hole, so that after the positioning bolt 1.1.3 is screwed into the bolt hole, a part of the positioning bolt is inserted into the positioning hole to limit the extension and contraction of the main beam 1.1.1 and the telescopic beam 1.1.2 along the length direction, thereby limiting the length of the articulated telescopic beam 1.1. And the positioning bolt 1.1.3 is matched with different positioning holes on the telescopic beam 1.1.2, so that different length control of the hinged telescopic beam 1.1 is realized. It should be noted that the articulated telescopic beam 1.1 and the telescopic beam 1.1.2 refer to different parts in this embodiment.
The two ends of each hinged telescopic beam 1.1 are provided with hinged joints which are hinged rings. The articulated joints of two adjacent articulated telescopic beams 1.1 are at different heights, so that when two articulated telescopic beams 1.1 are articulated, the articulated joints of the two articulated telescopic beams 1.1 are arranged in a stacked manner and are formed with concentric or similarly concentric holes. But reducing frame 1 includes a plurality of round pin axles 1.2, and the quantity of round pin axle 1.2 corresponds with the quantity of articulated flexible roof beam 1.1, and in this embodiment, round pin axle 1.2 has four, and four round pin axles 1.2 peg graft in four articulated flexible roof beams 1.1 end to end articulated four inner corners of enclosing the rectangular frame who closes formation respectively one-to-one. The inner angle of the rectangular frame is the position matched with the hinged joint of the two hinged telescopic beams 1.1, namely, the pin shaft 1.2 is inserted into a hole formed by the hinged joints of the two hinged telescopic beams 1.1 which are arranged in a stacked mode, so that the two hinged telescopic beams 1.1 are hinged, the pin shaft 1.2 can rotate around the axis of the pin shaft 1.2, and the axis of the pin shaft 1.2 is vertically arranged.
The corner support 1.3 comprises two vertical rectangular steel plates which are kept to be vertical, and the corner support 1.3 further comprises a plurality of rib plates which are used for connecting the two rectangular steel plates. The rib plates and the rectangular steel plates are welded and fixed, so that the two rectangular steel plates of the corner brace 1.3 are kept at 90 degrees. The angle support 1.3 is arranged at an inner angle formed by two hinged telescopic beams 1.1 which are hinged with each other and of the annular structure, and the angle support 1.3 is fixedly connected with one hinged telescopic beam 1.1 at the inner angle. For example, one rectangular steel plate of the corner support 1.3 is fixedly connected with the end of the telescopic beam 1.1.2 of one of the two hinged telescopic beams 1.1, the fixed connection mode can adopt a rivet or a bolt connection, and the other rectangular steel plate of the corner support 1.3 is abutted with the end of the main beam 1.1.1 of the other hinged telescopic beam 1.1, so that the included angle of the two hinged telescopic beams 1.1 is limited to be more than or equal to 90 degrees. The rectangular frame formed by hinging and enclosing the four hinged telescopic beams 1.1 end to end is not deformed.
Of course, in some embodiments, the two rectangular steel plates of the corner support 1.3 are both kept upright but not perpendicular, and may be less than 90 degrees or more than 90 degrees, and likewise, the fitting angle of the two articulated telescopic beams 1.1 at the inner corners where the corner support 1.3 is mounted is correspondingly limited.
The climbing system 2 comprises a plurality of wheel set modules which are circumferentially and movably distributed on the articulated telescopic beam 1.1 along a multi-section annular structure formed by hinging and enclosing 4 articulated telescopic beams 1.1 end to end, each wheel set module comprises a climbing wheel 2.2.2, the climbing wheels 2.2 are contacted with the outer side of the pier stud 4 after being subjected to side pressure, and at least one climbing wheel 2.2.2 is connected with a driving piece to realize automatic climbing of the platform. The driving piece can be a driving motor or other devices capable of driving the climbing wheel 2.2.2 to rotate, and the driving piece adopts the prior art.
The lateral pressure system 3 comprises a steel cable 3.1 and a pretightening force assembly 3.2, wherein the steel cable 3.1 is enclosed at the outer side of the wheel set modules and is used for applying lateral pressure to the wheel set modules; the pretightening force component 3.2 is connected with the steel cable 3.1 and is used for adjusting the lateral pressure applied by the steel cable 3.1.
As shown in fig. 1, 4 and 5, in the present embodiment, the wheel set module includes not only the climbing wheel 2.2.2, but also the mounting sliding sleeve 2.1 and the wheel carrier assembly. Wherein, the movable suit of installation sliding sleeve 2.1 is on articulated flexible roof beam 1.1, can follow the length direction slip of articulated flexible roof beam 1.1 to the position of adjustment installation sliding sleeve 2.1. And the wheel carrier component is arranged on the mounting sliding sleeve 2.1, so that when the mounting sliding sleeve 2.1 moves on the hinged telescopic beam 1.1, the wheel carrier component also moves along with the mounting sliding sleeve. The climbing wheels 2.2.2 are mounted on the wheel carrier assembly, so the movement of the wheel carrier assembly also drives the climbing wheels 2.2.2 to move, and the articulated telescopic beam 1.1 in the embodiment is transversely arranged, so the climbing wheels 2.2.2 can horizontally and transversely move, or horizontally move along the length direction of the articulated telescopic beam 1.1.
Of course, in order to limit unnecessary movement of the climbing wheel 2.2.2, the mounting sliding sleeve 2.1 is provided with a bolt hole which is arranged right opposite to the hinged telescopic beam 1.1 and a locking bolt which is in threaded fit with the bolt hole, and the locking bolt is in threaded fit with the bolt hole so as to fix the mounting sliding sleeve 2.1 on the hinged telescopic beam 1.1 or release the fixing.
The wheel carrier component can move relative to the hinged telescopic beam 1.1 and is movably connected with the mounting sliding sleeve 2.1, and the movable connection mode can be sliding or rotating. The wheel carrier assembly can slide or rotate relative to the mounting sliding sleeve 2.1, so that the climbing wheel 2.2.2 mounted on the wheel carrier assembly can get close to or far away from the pier column 4.
The steel cable 3.1 surrounds the outer side of the wheel carrier assembly and applies pressure to increase the friction force between the climbing wheel 2.2.2 and the pier stud 4, so that the climbing wheel cannot slide or fall off in the climbing process, and the stability and safety of platform climbing can be ensured.
As shown in fig. 4, the mounting sliding sleeve 2.1 is provided with guide through holes distributed along the side pressure direction, in this embodiment, the side pressure direction is a direction horizontally close to the side wall of the pier 4. The bottom of installation sliding sleeve 2.1 can set up horizontally bellying, is provided with the guide through-hole that the level runs through at this bellying. The mounting sliding sleeve 2.1 can be a square tube or a round tube, and the inner diameter is larger than the outer diameter of the main beam 1.1.1, so that the mounting sliding sleeve 2.1 can slide on the main beam 1.1.1 and can also slide on the telescopic beam 1.1.2.
As shown in fig. 5, the wheel carrier assembly includes a wheel carrier body 2.2.1, a guide hanger 2.2.5 and a pulley 2.2.4. The climbing wheel 2.2.2 is mounted on the wheel carrier body 2.2.1. The guide hanging rod 2.2.5 is fixedly connected with the wheel carrier body 2.2.1, and the guide hanging rod 2.2.5 penetrates through the guide through hole and is movably connected with the mounting sliding sleeve 2.1. The U type pole that direction peg 2.2.5 transversely set up in the face of erectting, this U type pole includes that two horizontally are in not co-altitude first horizontal pole and second horizontal pole, first horizontal pole is less than the second horizontal pole, first horizontal pole is short in the second horizontal pole, first horizontal pole and wheel carrier body 2.2.1 welded fastening, the second horizontal pole is worn to establish in the direction through-hole, make direction peg 2.2.5 and rather than fixed wheel carrier body 2.2.1 all can follow the length direction removal of second horizontal pole or direction through-hole, thereby make wheel carrier body 2.2.1 be close to or keep away from pier stud 4.
A mast is horizontally arranged at one end of the wheel carrier body 2.2.1, which is back to the pier stud 4. One end of the mast, which is opposite to the wheel frame body 2.2.1, is provided with a pulley 2.2.4. The central shaft of the pulley 2.2.4 is arranged vertically. The steel cable 3.1 passes around the outer side of the pulley 2.2.4, so that in the process of adjusting the steel cable 3.1, the steel cable 3.1 is matched with the pulley 2.2.4, the pulley 2.2.4 can rotate, and the process of tightening or loosening the steel cable 3.1 is more labor-saving. The lateral pressure exerted by the steel cable 3.1 on the wheel set module is firstly transmitted to the pulley 2.2.4 by the steel cable 3.1, then transmitted to the mast, and finally transmitted to the climbing wheel 2.2.2 and the wheel carrier body 2.2.1, so that the climbing wheel 2.2.2 is pressed on the pier stud 4.
Referring to fig. 4 and 6, in the present embodiment, the wheel carrier assembly is divided into a power wheel set 2.2 and a supporting wheel set 2.3; the two power wheel sets 2.2 are respectively arranged at two opposite sides of the pier stud 4, and the two supporting wheel sets 2.3 are respectively arranged at the other two opposite sides of the pier stud 4. In other words, the two power wheel sets 2.2 are respectively arranged on two opposite sides of the annular structure of the variable diameter support. The two supporting wheel sets 2.3 are respectively arranged on the other two opposite sides of the annular structure of the variable diameter bracket. The power wheel set 2.2 and the support wheel set 2.3 have substantially the same structure, and mainly adopt the structure of the wheel carrier assembly, and the difference lies in that the power wheel set 2.2 is provided with not only the climbing wheel 2.2.2 but also the climbing support wheel 2.2.3, such as the power wheel set 2.2 shown in fig. 5, which comprises one climbing wheel 2.2.2 and two climbing support wheels 2.2.3, and the wheel surfaces of the climbing wheel 2.2.2 and the two climbing support wheels 2.2.3, which are opposite to the pier stud 4, are on the same vertical surface.
The supporting wheelset 2.3 shown in fig. 6 also includes a wheel carrier body 2.3.1, a guiding hanging rod, a pulley 2.3.3, a mast, etc., and is different in that the wheel carrier body 2.3.1 of the supporting wheelset 2.3 is not provided with the climbing wheels 2.2.2, and four climbing supporting wheels 2.3.2 are provided in a 2X2 array. The wheel surfaces of the four climbing supporting wheels 2.3.2, which are opposite to the pier stud 4, are positioned on the same vertical surface.
The wire rope 3.1 passes around the outside of all the pulleys 2.2.4/2.3.3, i.e. the wire rope 3.1 passes not only around the outside of the pulleys 2.2.4 on both power wheelsets 2.2 but also around the outside of the pulleys 2.3.3 on both support wheelsets 2.3. Therefore, when the steel cable 3.1 is folded, the two power wheel sets 2.2 and the two supporting wheel sets 2.3 synchronously move towards the direction of the pier column 4 to clamp the pier column 4, the friction wheels of the climbing wheel 2.2.2 and the climbing supporting wheel 2.2.3/2.3.2 and the pier column 4 are respectively improved, and the stability of climbing of the platform is ensured.
In order to avoid the steel cable 3.1 from being in frictional contact with the corners of the pier stud 4 when the steel cable 3.1 surrounds the two power wheel sets 2.2 and the two supporting wheel sets 2.3, the climbing stability is influenced. As shown in fig. 1 and 4, the climbing system 2 further includes a plurality of auxiliary wheel sets 2.4 movably distributed along the length direction of the steel cable 3.1. As is well known, a pier 4 having a rectangular horizontal cross-section has four sides, with a corner formed between each adjacent two sides. The corner is also sometimes chamfered. In this embodiment, the pier column 4 with a rectangular horizontal cross section is taken as an example, so that four auxiliary wheel sets 2.4 are provided, and one auxiliary wheel set 2.4 is correspondingly distributed at each corner of the pier column 4, so as to improve the smoothness of the platform in the climbing process.
As shown in fig. 7, the auxiliary wheel set 2.4 comprises: auxiliary wheel carrier 2.4.1 and a plurality of auxiliary wheels.
The auxiliary wheel frame 2.4.1 is provided with a limiting through groove or a limiting hole, and the steel cable 3.1 penetrates through the limiting through groove or the limiting hole and is used for applying lateral pressure to the auxiliary wheel frame 2.4.1. In this embodiment, the auxiliary wheel frame 2.4.1 includes a V-shaped bracket disposed in a horizontal plane, and a limit through groove is disposed at a vertex of the V-shaped bracket, or a limit hole may be provided. The length direction of the limiting through groove or the axis direction of the limiting hole is horizontal. The steel cable 3.1 can be embedded in the limiting through groove and can slide along the length direction of the limiting through groove. The steel cable 3.1 can also pass through the limiting hole, so that the auxiliary wheel frame 2.4.1 can be hung on the steel cable 3.1 and can slide along the length direction of the steel cable 3.1 to adjust the position of the auxiliary wheel frame 2.4.1. At the same time, the steel cable 3.1 needs to be able to move laterally relative to the auxiliary wheel frame 2.4.1 to achieve smooth tightening or loosening of the steel cable 3.1.
A plurality of auxiliary wheels set up auxiliary wheel carrier 2.4.1 is last, and encloses to close and be formed with the opening angle space, the opening angle space is used for encircleing the corner of pier stud 4. Wherein the opening angle space comprises a first opening space formed by the V-shaped cradle of the auxiliary wheel carrier 2.4.1. As shown in fig. 7, the plurality of auxiliary wheels includes two primary auxiliary wheels 2.4.2 and two secondary auxiliary wheels 2.4.3. Two secondary auxiliary wheels 2.4.3 are respectively arranged at the open ends of the V-shaped bracket.
The auxiliary wheel carrier 2.4.1 also comprises a vertical stand which is vertically arranged, and the vertical stand is welded and fixed with the middle part of the V-shaped bracket. Two main and auxiliary wheels 2.4.2 are respectively arranged at two ends of the vertical frame in a one-to-one correspondence manner. The opening angle space also comprises a second space at one side of the stand, which is back to the top end of the V-shaped bracket.
When the auxiliary wheel sets 2.4 are distributed at the corners of the pier stud 4 and climb along with the platform, at least one part of each corner of the pier stud 4 is always positioned in the first opening space and the second space of the auxiliary wheel set 2.4 corresponding to the corner. After the auxiliary wheel frame 2.4.1 is subjected to the lateral pressure exerted by the steel cable 3.1, the two main auxiliary wheels 2.4.2 and the two secondary auxiliary wheels 2.4.3 are both contacted with the corners of the pier stud 4.
In some embodiments, the pier 4 is a cylinder, i.e. the horizontal cross section of the pier 4 is circular or elliptical, and accordingly, the auxiliary wheel sets 2.4 of the climbing system 2 may be uniformly distributed along the circumference of the pier 4, so that the cables 3.1 do not contact with the pier 4. Of course, it is also possible to use no auxiliary wheel set 2.4 and to use more supporting wheel sets 2.3.
As shown in fig. 8 and 9, the pretensioning assembly 3.2 comprises:
a first connecting member 3.2.1 connected to one end of the steel cable 3.1.
And a second connecting member 3.2.5 connected to the other end of the wire rope 3.1.
The adjusting piece is connected between the first connecting piece 3.2.1 and the second connecting piece 3.2.5;
as shown in fig. 8, the first connecting member 3.2.1, the steel cable 3.1, the second connecting member 3.2.5 and the adjusting member are sequentially connected end to form a closed loop structure, and the adjusting member adjusts the distance between the first connecting member 3.2.1 and the second connecting member 3.2.5 to adjust the loop diameter of the closed loop structure.
The way of the adjusting member adjusting the distance between the first connecting member 3.2.1 and the second connecting member 3.2.5 can be various, in this embodiment, the adjusting member includes an adjusting rod 3.2.3 (or an adjusting bolt) and an adjusting tube 3.2.4 (or a threaded tube) which are matched with each other through threads, the adjusting rod 3.2.3 is connected with the first connecting member 3.2.1, and the adjusting tube 3.2.4 is connected with the second connecting member 3.2.5. The matching depth of the adjusting rod 3.2.3 and the adjusting pipe 3.2.4 is changed by rotating the adjusting rod 3.2.3 or the adjusting pipe 3.2.4, so that the distance between the first connecting piece 3.2.1 and the second connecting piece 3.2.5 is changed, when the adjusting rod 3.2.3 is continuously screwed into the adjusting pipe 3.2.4, the distance between the first connecting piece 3.2.1 and the second connecting piece 3.2.5 is shortened, the steel cable 3.1 is tightened, the ring diameter of the closed-loop structure is reduced, and the side pressure applied to the wheel set module is increased. Conversely, when the adjusting rod 3.2.3 is continuously screwed out of the adjusting tube 3.2.4, the steel cable 3.1 is loosened, the diameter of the closed loop structure is increased, and the lateral pressure applied to the wheel set module is reduced.
Referring to fig. 9, the first connecting member 3.2.1 is a tubular structure, a thrust bearing 3.2.2 is disposed inside the adjusting rod 3.2.3, and the thrust bearing 3.2.2 is connected to the adjusting rod 3.2.3, so that when the adjusting rod 3.2.3 rotates, the first connecting member 3.2.1 does not rotate, and the influence on the steel cable 3.1 is avoided. An open slot is arranged at one end of the first connecting piece 3.2.1 back to the adjusting rod 3.2.3, and a bolt 3.2.6 is also arranged at one end of the first connecting piece 3.2.1, where the open slot is arranged. The axis direction of bolt 3.2.6 is perpendicular with the direction of running through first connecting piece 3.2.1 of open slot, and bolt 3.2.6 is pulled out with first connecting piece 3.2.1 and is inserted and/or screw-thread fit, is provided with the spacing section of reducing on the bolt 3.2.6, has different diameter size to be formed with at least one step portion, be used for with 3.1 cooperation of cable wire, restriction cable wire 3.1 activity promotes the cooperation effect. One end that 3.1 of cable wire and first connecting piece 3.2.1 are connected is provided with the confined ring portion, extracts bolt 3.2.6, inserts first connecting piece 3.2.1 inside with the ring portion of this cable wire 3.1 from the open slot, and insert bolt 3.2.6, makes bolt 3.2.6 pass this ring portion, and the ring portion is in the spacing section department of reducing of bolt 3.2.6. Be provided with on first connecting piece 3.2.1 and be used for with bolt 3.2.6 complex through-hole and screw hole, this through-hole and screw hole set up the relative lateral wall at first connecting piece 3.2.1 with one heart, bolt 3.2.6 has little diameter section and big diameter section, when bolt 3.2.6 inserts first connecting piece 3.2.1, little diameter section passes the screw hole earlier and inserts in the through-hole, big diameter section is provided with the external screw thread, with screw hole threaded connection, thereby with bolt 3.2.6 and first connecting piece 3.2.1 threaded connection, avoid becoming flexible and drop.
The second connecting piece 3.2.5 comprises a rope connecting nut and a lifting ring arranged at one end of the rope connecting nut, the lifting ring is used for being connected with a steel cable 3.1, the steel cable 3.1 can be bound on the lifting ring, and the rope connecting nut is arranged at one end, back to the adjusting rod 3.2.3, of the adjusting pipe 3.2.4.
Based on the same invention concept, the invention also provides a climbing method of the variable diameter steel rope lateral pressure type pier column self-climbing platform, which comprises the following steps:
and the multi-section annular structure of the diameter-variable machine frame 1 is surrounded on the outer side of the pier column 4. The length of each articulated telescopic beam 1.1 and the matching angle of the adjacent articulated telescopic beams 1.1 are adjusted.
And (3) mounting the wheel set module of the climbing system 2 on an articulated telescopic beam 1.1 of the diameter-variable machine frame 1. The relative position of the wheel set module on the hinged telescopic beam 1.1 is adjusted.
The steel cable 3.1 of the side pressure system 3 is surrounded on the outer side of the wheel set module, the side pressure applied to the wheel set module by the steel cable 3.1 is adjusted by the pretightening force assembly 3.2 of the side pressure system 3, and the climbing wheel 2.2.2 of the wheel set module is contacted with the outer side of the pier stud 4 after receiving the side pressure. In addition, the auxiliary wheel set 2.4 is placed at the corner corresponding to the pier stud 4, so that the auxiliary wheel set 2.4 is positioned between the steel cable 3.1 and the pier stud 4, and the steel cable 3.1 also applies lateral pressure to the auxiliary wheel set 2.4. The pretightening force component 3.2 adjusts the lateral pressure, so that the platform is suspended outside the pier stud 4. The functional member is mounted on the variable diameter housing 1.
And starting a driving piece connected to at least one climbing wheel 2.2.2 to realize automatic climbing of the platform. The functional component is activated at the same time.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may be made by those skilled in the art without departing from the principle of the invention.
Claims (10)
1. The utility model provides a but variable diameter cable wire side pressure formula pier stud is from climbing platform which characterized in that includes:
the diameter-variable machine frame comprises a multi-section annular structure formed by hinging and enclosing a plurality of hinged telescopic beams end to end, and the annular structure is used for enclosing the outer side of a pier stud;
the climbing system comprises a plurality of wheel set modules which are movably distributed on the hinged telescopic beam along the circumferential direction of the annular structure, each wheel set module comprises a climbing wheel, the climbing wheels are contacted with the outer side of the pier column after receiving the lateral pressure, and at least one climbing wheel is connected with a driving piece so as to realize the automatic climbing of the platform;
the lateral pressure system comprises a steel cable and a pretightening force assembly, wherein the steel cable surrounds the outer sides of the wheel set modules and is used for applying lateral pressure to the wheel set modules; the pretightening force assembly is connected with the steel cable and is used for adjusting the lateral pressure applied by the steel cable.
2. The variable diameter wire rope lateral pressure pier column self-climbing platform of claim 1, wherein the wheelset module further comprises:
a sliding sleeve is installed and movably sleeved on the hinged telescopic beam;
the wheel carrier assembly is arranged on the mounting sliding sleeve and is movably connected with the mounting sliding sleeve;
wherein the climbing wheel is arranged on the wheel frame component, and the steel cable surrounds the outer side of the wheel frame component and applies pressure to increase the friction force between the climbing wheel and the pier stud.
3. The variable diameter wire rope lateral pressure pier column self-climbing platform of claim 2, wherein the wheel carriage assembly comprises:
the climbing wheel is arranged on the wheel carrier body;
the guide hanging rod is connected with the wheel carrier body, guide through holes distributed along the side pressure direction are formed in the mounting sliding sleeve, and the guide hanging rod penetrates through the guide through holes and is movably connected with the mounting sliding sleeve;
the pulley is arranged on the wheel carrier body; the steel cable is wound around the outer side of the pulley.
4. The variable diameter wire rope side pressure pier column self-climbing platform of claim 1, wherein the climbing system further comprises a plurality of auxiliary wheel sets movably distributed along the length direction of the wire rope, the auxiliary wheel sets comprising:
the auxiliary wheel frame is provided with a limiting through groove or a limiting hole, and the steel cable penetrates through the limiting through groove or the limiting hole and is used for applying lateral pressure to the auxiliary wheel frame;
the auxiliary wheels are arranged on the auxiliary wheel carrier and enclose an opening angle space, and the opening angle space is used for enclosing the corner of the pier stud; the auxiliary wheel frame is contacted with the corner of the pier stud after the auxiliary wheel frame receives side pressure.
5. The self-climbing platform of a variable-diameter steel rope lateral-pressure pier column according to claim 1, wherein the pretightening force assembly comprises:
the first connecting piece is connected with one end of the steel cable;
the second connecting piece is connected with the other end of the steel cable;
the adjusting piece is connected between the first connecting piece and the second connecting piece;
the first connecting piece, the steel cable, the second connecting piece and the adjusting piece are sequentially connected end to form a closed loop structure, and the adjusting piece adjusts the distance between the first connecting piece and the second connecting piece to adjust the loop diameter of the closed loop structure.
6. The self-climbing platform of a variable-diameter steel rope lateral-pressure pier column according to claim 5, wherein the adjusting member comprises an adjusting rod and an adjusting pipe, the adjusting rod and the adjusting pipe are in threaded fit, the adjusting rod is connected with the first connecting member, and the adjusting pipe is connected with the second connecting member.
7. The self-climbing platform of the variable diameter steel rope lateral pressure pier stud of claim 1, wherein the articulated telescopic beams comprise main beams and telescopic beams which are telescopically engaged with each other.
8. The self-climbing platform of a variable-diameter steel rope side-pressing pier column according to claim 7, wherein the variable-diameter machine frame further comprises a corner support, the corner support is arranged at an inner angle formed by two hinged telescopic beams hinged to each other in the annular structure, and the corner support is fixedly connected with one of the hinged telescopic beams at the inner angle.
9. The self-climbing platform of a variable-diameter steel rope lateral-pressure pier column according to claim 1, wherein the variable-diameter stand further comprises at least one functional component arranged on the articulated telescopic beam, and the functional component comprises an image detection device, a coating spraying device or a maintenance film coating reel.
10. A method of climbing a self-climbing platform of a variable diameter wire rope side pressure pier stud according to any one of claims 1 to 9, comprising the steps of:
the multi-section annular structure of the variable-diameter stand is surrounded on the outer side of the pier stud;
installing wheel set modules of the climbing system on the hinged telescopic beams of the variable-diameter rack;
the steel cable of the side pressure system is surrounded on the outer side of the wheel set module, and the lateral pressure applied to the wheel set module by the steel cable is adjusted by using a pretightening force assembly of the side pressure system, so that the climbing wheel of the wheel set module is contacted with the outer side of a pier after receiving the lateral pressure;
and starting at least one driving piece connected to the climbing wheel so as to realize automatic climbing of the platform.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211222015.3A CN115538315B (en) | 2022-10-08 | 2022-10-08 | Diameter-variable steel cable lateral pressure type pier column self-climbing platform and climbing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211222015.3A CN115538315B (en) | 2022-10-08 | 2022-10-08 | Diameter-variable steel cable lateral pressure type pier column self-climbing platform and climbing method thereof |
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| CN115538315B CN115538315B (en) | 2023-07-14 |
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| CN111455860A (en) * | 2020-04-30 | 2020-07-28 | 丁钟魁 | Pier curing means |
| DE102019108782A1 (en) * | 2019-04-03 | 2020-10-08 | Peri Gmbh | Computer-aided method and device for controlling a climbing formwork device |
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| CN114518409A (en) * | 2022-01-18 | 2022-05-20 | 江西省天驰高速科技发展有限公司 | Bridge circular pier column detection system and method with middle tie beam |
| CN115094758A (en) * | 2022-05-23 | 2022-09-23 | 云南交投集团云岭建设有限公司 | Construction method of variable-section thin-wall hollow pier double-layer template system |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019108782A1 (en) * | 2019-04-03 | 2020-10-08 | Peri Gmbh | Computer-aided method and device for controlling a climbing formwork device |
| CN111455860A (en) * | 2020-04-30 | 2020-07-28 | 丁钟魁 | Pier curing means |
| CN113756182A (en) * | 2021-09-05 | 2021-12-07 | 中建三局第一建设工程有限责任公司 | Pier stud maintenance device and film coating construction method |
| CN216551605U (en) * | 2021-12-16 | 2022-05-17 | 中铁建大桥工程局集团第三工程有限公司 | A steel bar installation platform for high mound turns over mould construction |
| CN114518409A (en) * | 2022-01-18 | 2022-05-20 | 江西省天驰高速科技发展有限公司 | Bridge circular pier column detection system and method with middle tie beam |
| CN115094758A (en) * | 2022-05-23 | 2022-09-23 | 云南交投集团云岭建设有限公司 | Construction method of variable-section thin-wall hollow pier double-layer template system |
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| CN115538315B (en) | 2023-07-14 |
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