CN115538315B - Diameter-variable steel cable lateral pressure type pier column self-climbing platform and climbing method thereof - Google Patents
Diameter-variable steel cable lateral pressure type pier column self-climbing platform and climbing method thereof Download PDFInfo
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- CN115538315B CN115538315B CN202211222015.3A CN202211222015A CN115538315B CN 115538315 B CN115538315 B CN 115538315B CN 202211222015 A CN202211222015 A CN 202211222015A CN 115538315 B CN115538315 B CN 115538315B
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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
Abstract
The application relates to the technical field of building construction and provides a variable diameter steel cable side pressure type pier column self-climbing platform and a climbing method thereof, wherein the variable diameter steel cable side pressure type pier column self-climbing platform comprises a variable diameter rack, and the variable diameter rack comprises a multi-section annular structure formed by hinging a plurality of hinged telescopic beams end to end, and the multi-section annular structure surrounds the outer side of the pier column; the climbing system comprises a plurality of wheel group modules, wherein each wheel group module comprises climbing wheels, the climbing wheels are contacted with the outer sides of the pier columns after being subjected to lateral pressure, and at least one climbing wheel is connected with a driving piece to realize automatic climbing of the platform; the side pressure system comprises a steel cable and a pre-tightening force assembly, wherein the steel cable is enclosed on the outer sides of the wheel group modules and is used for applying side pressure to the wheel group modules; the pretightening force assembly is connected with the steel cable and used for adjusting the lateral pressure applied by the steel cable. By arranging the climbing system on the variable-diameter frame, the automatic climbing of the platform is realized. The climbing wheel can be clung to the pier column through the side pressure system, the friction wheel is increased, and climbing safety and stability are ensured.
Description
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to a variable diameter steel cable side pressure type pier stud self-climbing platform and a climbing method thereof.
Background
After the concrete of the bridge pier column is poured and the strength of the concrete reaches the form removal strength, the concrete of the pier column needs to be maintained in time after the form is removed, otherwise, the water of the concrete evaporates, the strength of the concrete of the pier column can be influenced, shrinkage cracks are easy to appear, and the quality and durability of the pier column are seriously influenced. The shrinkage cracks appear on the pier column concrete surface, so that water and oxygen in the air can enter the interior of the pier column concrete, the steel bars of the pier column are corroded, and the pier column concrete protective layer is further developed to be peeled off, so that the bearing capacity of the pier column is reduced.
The existing curing of pier column concrete is to wind plastic film on the surface of the pier column concrete, then water the pier column concrete, so that the humidity of the pier column concrete is kept above 90%, and the curing is generally finished for 14 days. However, bridge pier columns are usually high, and the concrete maintenance of winding materials is difficult. At present, the pier stud maintenance and film covering construction often adopts a method of manually winding and covering after a bracket is erected; or a crane is adopted to suspend the maintenance film reel, a worker stands on the circumference of the pier top to swing the lifting hook, and the lifting hook is matched with a crane operator to enable the reel to be spirally lowered at a constant speed, so that the pier column film covering is completed. Both methods increase construction cost and cause potential safety hazards for high-altitude operation of constructors. Especially, the safety problem of pier column constructors is particularly remarkable, the construction efficiency is low, and the early strength of the pier column concrete surface is seriously affected.
Meanwhile, the prior art also provides a scheme for completing maintenance and film covering in an auxiliary way by adopting a mechanical device. For example, patent publication No. CN112225019a discloses a pier column concrete curing material covering winding device and a winding method, and the pier column top is provided with a winch which can be manually operated by a single person and can rotate around the pier column, so that curing and laminating construction can be quickly and efficiently completed on the pier top manually. However, this method still presents a significant overhead safety hazard. For another example, patent document with publication number CN113587828A discloses a bridge pier detection device and method, which is provided with a climbing device, including a bracket, a climbing wheel and a power motor, which are disposed on the bracket, to realize automatic climbing of the bracket surrounding the bridge pier. However, the support of the device is of a fixed structure, and although part of the support adopts a modularized splicing structure, the device is only aimed at realizing rapid assembly and disassembly, and the problems that the device cannot be applied to pier studs with different diameters, has a limited application range, is inconvenient to turn around and use, and has poor contact effect between climbing wheels and pier studs and the like still exist.
Disclosure of Invention
Aiming at the problems in the prior art, the application provides a variable diameter steel cable side pressure type pier stud self-climbing platform and a climbing method thereof.
In a first aspect, the present invention provides a variable diameter steel cable lateral pressure type pier stud self-climbing platform, comprising:
the variable-diameter rack comprises a multi-section annular structure formed by hinging and enclosing a plurality of hinged telescopic beams end to end, wherein the annular structure is used for enclosing the outer side of a pier column;
the climbing system comprises a plurality of wheel group modules which are movably distributed on the hinged telescopic beam along the circumferential direction of the annular structure, wherein each wheel group module comprises a climbing wheel, the climbing wheel is contacted with the outer side of the pier post after being subjected to lateral pressure, and at least one climbing wheel is connected with a driving piece to realize automatic climbing of the platform;
a side pressure system comprising a steel cable and a pre-tightening force assembly, wherein the steel cable is enclosed outside the wheel group modules and is used for applying side pressure to the wheel group modules; the pre-tightening force assembly is connected with the steel cable and used for adjusting the lateral pressure applied by the steel cable.
Further, the wheelset module further includes:
a sliding sleeve is arranged and movably sleeved on the hinged telescopic beam;
the wheel carrier assembly is arranged on the installation sliding sleeve and is movably connected with the installation sliding sleeve;
wherein, the climbing wheel is installed on the wheel carrier subassembly, the cable wire surrounds the outside of wheel carrier subassembly and exerts pressure to increase the frictional force of climbing wheel with the pier stud.
Further, the mounting sliding sleeve is provided with a bolt hole which is opposite to the hinged telescopic beam 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 on the hinged telescopic beam or release the fixing.
Further, the wheel carriage assembly includes:
the climbing wheel is arranged on the wheel frame body;
the guide hanging rod is connected with the wheel carrier body, guide through holes distributed along the lateral 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 wire rope is wound around the outside 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 limit through groove or a limit hole, and the steel cable passes through the limit through groove or the limit hole and is used for applying lateral pressure to the auxiliary wheel frame;
the auxiliary wheels are arranged on the auxiliary wheel frames and are enclosed to form an opening angle space, 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 post after being subjected to lateral pressure.
Further, the pretension force assembly includes:
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 so as to adjust the ring diameter of the closed loop structure.
Further, the adjusting piece comprises an adjusting rod and an adjusting pipe which are in threaded fit, the adjusting rod is connected with the first connecting piece, and the adjusting pipe is connected with the second connecting piece.
Further, the hinged telescopic beam comprises a main beam and a telescopic beam which are in telescopic fit with each other.
Further, the variable diameter rack further comprises a corner brace, wherein the corner brace is arranged at an inner angle formed by two hinged telescopic beams of the annular structure, and the corner brace is fixedly connected with one of the hinged telescopic beams at the inner angle.
Further, the variable diameter frame further comprises at least one functional component arranged on the hinged telescopic beam, wherein the functional component comprises an image detection device, a coating spraying device or a curing film reel.
In a second aspect, the invention provides a climbing method of the variable diameter steel cable side pressure type pier stud self-climbing platform, which comprises the following steps:
surrounding the multi-section annular structure of the variable-diameter frame on the outer side of the pier stud;
a wheel group module of the climbing system is arranged on a hinged telescopic beam of the variable-diameter rack;
surrounding a steel cable of the side pressure system on the outer side of the wheel group module, and adjusting the lateral pressure applied to the wheel group module by the steel cable by utilizing a pre-tightening force component of the side pressure system so that a climbing wheel of the wheel group module contacts with the outer side of a pier post after receiving the lateral pressure;
and starting at least one driving piece connected with the climbing wheel so as to realize automatic climbing of the platform.
The beneficial effects of the invention include:
through setting up the variable diameter frame to contain the multistage annular structure that encloses to close the formation by a plurality of articulated telescopic beam head and tail mutually, make it applicable in the pier stud of different diameters, application scope is wide, the turnover of being convenient for uses, the cost is reduced.
By arranging the climbing system on the variable-diameter frame, the automatic climbing of the platform is realized, and the labor is saved and the safety is ensured.
The lateral pressure system is used for applying lateral pressure to the wheel group module of the climbing system, so that the climbing wheel of the climbing system can be clung to the pier column, the friction wheel is increased, and the climbing safety and stability are ensured; in addition, the side pressure system can be matched with the variable diameter rack to realize synchronous diameter changing of the platform, and the side pressure system can stably operate aiming at pier columns with different diameters. The lateral pressure system adopts expansion or contraction of a steel cable to realize lateral pressure adjustment, and each wheel set module is balanced in stress and stable in climbing and descending. Compared with the traditional electric push rod type pressurizing system, the side pressure system adopting the steel cable has lighter weight and simple structure, and can improve the carrying capacity of the climbing platform.
Drawings
FIG. 1 is a schematic perspective view of a variable diameter wire rope side pressure pier stud self-climbing platform of the present invention.
Fig. 2 is a schematic view of the platform of fig. 1 after it is installed outside the pier stud.
Fig. 3 is a schematic perspective view of a variable diameter frame of the platform of fig. 1.
Fig. 4 is an enlarged schematic view of the diameter-variable frame in fig. 2 after being hidden.
Fig. 5 is an enlarged perspective view of a wheel set module of fig. 4.
Fig. 6 is an enlarged perspective view of another wheel set module of 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 connecting the pretensioning component and the steel cable in fig. 1.
Fig. 9 is an enlarged schematic view of the pretension assembly of fig. 8.
In the figure:
1-a variable diameter frame; 1.1-articulated telescopic beams; 1.1.1-main beams; 1.1.2-telescoping beams; 1.1.3-positioning bolts; 1.2-pin shafts; 1.3-gussets;
2-climbing system; 2.1-mounting a sliding sleeve; 2.2-a power wheel set; 2.2.1-wheel carrier body; 2.2.2-climbing wheels; 2.2.3-climbing support wheels; 2.2.4-pulleys; 2.2.5-guiding hanging rod; 2.3-supporting the wheelset; 2.3.1-wheel carrier body; 2.3.2-climbing support wheels; 2.3.3-pulleys; 2.4-auxiliary wheelsets; 2.4.1-auxiliary wheel frames; 2.4.2-primary auxiliary wheels; 2.4.3 auxiliary wheels;
a 3-side pressure system; 3.1-a steel rope; 3.2-pretightening force assembly; 3.2.1-first connector; 3.2.2-thrust bearings; 3.2.3-adjusting the rod; 3.2.4-adjusting tube; 3.2.5-second connector; 3.2.6-pins;
4-pier column.
Detailed Description
The present invention is described in further detail below with reference to fig. 1 to 9 and the specific examples.
As shown in fig. 1, the variable diameter steel rope side pressure type pier stud self-climbing platform provided by the invention comprises a variable diameter frame 1, a climbing system 2 and a side pressure system 3.
Referring to fig. 2 and 3, the variable diameter frame 1 includes a gusset 1.3 and a multi-segment ring structure. The multi-section annular structure is formed by hinging a plurality of hinged telescopic beams 1.1 end to end. The annular structure is intended to surround the outside of the abutment 4.
In this embodiment, the multi-section ring structure is a rectangular frame formed by hinging four hinged telescopic beams 1.1 end to end. Which serves as a mounting carrier for the climbing system 2.
In some embodiments, the variable diameter frame 1 further comprises at least one functional component comprising an image detection device, a coating spraying device or a curing film reel provided on the articulated telescopic beam 1.1. In actual use, which functional member is mounted on the articulated telescopic beam 1.1 is specifically adjusted according to the construction process of the pier column 4. The functional components adopt the existing equipment.
For example, when the pier column 4 needs to be subjected to film coating maintenance, a maintenance film coating reel is mounted on the annular structure of the variable-diameter frame 1, a maintenance film roll is sleeved on the maintenance film coating reel, and the maintenance film of the maintenance film roll is wound on the pier column 4 along with climbing of the platform. The winding work of the maintenance film roll can be performed manually.
When the durable coating needs to be constructed on the pier stud 4, a coating spraying device comprising a paint bucket and a spray head is arranged on the annular structure of the variable-diameter frame 1, and the spray head is used for spraying paint in the paint bucket on the outer side of the pier stud 4. And as the platform climbs, the spray heads are uniformly sprayed.
When the appearance of the pier column 4 is required to be subjected to quality inspection, an image detection device comprising a camera is arranged on the annular structure of the variable-diameter frame 1, the outer vertical surface of the pier column 4 is shot by the camera, and whether quality defects such as cracking exist or not is judged by observing and contrasting the image of the outer vertical surface of the pier column 4 shot by the camera, so that the appearance of the pier column 4 is subjected to quality inspection.
In this embodiment, the hinged telescopic beam 1.1 includes a main beam 1.1.1 and a telescopic beam 1.1.2 which are telescopically engaged with each other. The main beams 1.1.1 and the telescopic beams 1.1.2 in the embodiment are rectangular tubes of section steel (or aluminum alloy and other materials), and of course, the main beams 1.1.1 and the telescopic beams 1.1.2 can also be round tubes. The inner diameter of the girder 1.1.1 is greater than or equal to the outer diameter of the telescopic girder 1.1.2, so that the telescopic girder 1.1.2 can extend into the girder 1.1.1, when the telescopic girder 1.1.2 continuously extends into the girder 1.1.1, the length of the hinged telescopic girder 1.1 is shortened, otherwise, when the telescopic girder 1.1.2 continuously extends out of the girder 1.1.1, the length of the hinged telescopic girder 1.1 is prolonged.
In order to realize the length adjustment and the fixation of the hinged telescopic girder 1.1, the hinged telescopic girder 1.1 also comprises a positioning bolt 1.1.3. In addition, in order to avoid affecting the mounting of functional components at 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 rack 1 in fig. 3 is actually a schematic view of the bottom end of the variable diameter rack 1 in fig. 1 after the variable diameter rack 1 in fig. 1 is turned 180 degrees. It can be seen from fig. 3 that one positioning bolt 1.1.3 is provided on each hinged telescopic beam 1.1, correspondingly, bolt holes in threaded connection with the positioning bolts 1.1.3 are provided on the main beams 1.1.1 of the hinged telescopic beams 1.1, a plurality of positioning holes are provided on the corresponding telescopic beams 1.1.2 along the length direction interval thereof, and the aperture of the positioning holes is greater than or equal to the aperture of the bolt holes, so that after the positioning bolts 1.1.3 are screwed into the bolt holes, a part of the positioning holes are inserted into the positioning holes to limit the extension of the main beams 1.1.1 and the telescopic beams 1.1.2 along the length direction, thereby limiting the length of the hinged telescopic beams 1.1. And the positioning bolts 1.1.3 are matched with different positioning holes on the telescopic beams 1.1.2, so that different length control of the hinged telescopic beams 1.1 is realized. In this embodiment, the hinged telescopic beam 1.1 and the telescopic beam 1.1.2 refer to different components.
Both ends of each hinged telescopic beam 1.1 are provided with hinged joints, and the hinged joints are hinged rings. The articulated joints of two adjacent articulated telescopic beams 1.1 are at different heights, so that when the 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 similar concentric holes. The variable diameter rack 1 comprises a plurality of pin shafts 1.2, the number of the pin shafts 1.2 corresponds to that of the hinged telescopic beams 1.1, in the embodiment, the number of the pin shafts 1.2 is four, the four pin shafts 1.2 are inserted into four inner angles of a rectangular frame formed by hinging and enclosing the four hinged telescopic beams 1.1 in a head-tail mode in a one-to-one mode. The inner angle of the rectangular frame, namely the position where the hinge joints of the two hinge type telescopic beams 1.1 are matched, namely the pin shaft 1.2 is inserted into a hole formed by the hinge joints which are arranged in a stacking way of the two hinge type telescopic beams 1.1, so that the hinge of the two hinge type telescopic beams 1.1 is realized, the hinge can rotate around the axis of the pin shaft 1.2, and the axis of the pin shaft 1.2 is vertically arranged.
The gusset 1.3 includes two perpendicular rectangular steel plates each kept upright, and the gusset 1.3 further includes a plurality of rib plates connecting the two rectangular steel plates. The rib plates are welded and fixed with the rectangular steel plates, so that the two rectangular steel plates of the angle 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 of the annular structure, and the angle support 1.3 is fixedly connected with one of the hinged telescopic beams 1.1 at the inner angle. For example, one rectangular steel plate of the angle brace 1.3 is fixedly connected with the end of the telescopic beam 1.1.2 of one hinged telescopic beam 1.1 of the two hinged telescopic beams 1.1, the fixed connection mode can be rivet or bolt connection, and the other rectangular steel plate of the angle brace 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 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, both rectangular steel plates of the gusset 1.3 remain upright but not vertical, and may be less than 90 degrees or more than 90 degrees, and as such, the mating angle of the two articulated telescopic beams 1.1 with the gusset 1.3 mounted at the inner corners is correspondingly limited.
The climbing system 2 comprises a plurality of wheel group modules which are circumferentially and movably distributed on the hinged telescopic beams 1.1 along a multi-section annular structure formed by hinging and enclosing 4 hinged telescopic beams 1.1 from beginning to end, wherein each wheel group module comprises a climbing wheel 2.2.2, the climbing wheels 2.2.2 are contacted with the outer side of a pier column 4 after being subjected to lateral 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 existing technology.
The side pressure system 3 comprises a steel cable 3.1 and a pre-tightening assembly 3.2, wherein the steel cable 3.1 is enclosed outside the wheel group modules and is used for applying side pressure to the wheel group modules; the pre-tightening assembly 3.2 is connected with the steel rope 3.1 and is used for adjusting the lateral pressure applied by the steel rope 3.1.
As shown in the figures in connection with fig. 1, 4 and 5, in this embodiment the wheelset module comprises not only the climbing wheel 2.2.2 but also the mounting slide 2.1 and the wheel carrier assembly. The installation sliding sleeve 2.1 is movably sleeved on the hinged telescopic beam 1.1 and can slide along the length direction of the hinged telescopic beam 1.1, so that the position of the installation sliding sleeve 2.1 is adjusted. The wheel carrier assembly is mounted on the mounting slide sleeve 2.1, so that the mounting slide sleeve 2.1 moves along with the articulated telescopic beam 1.1. The climbing wheel 2.2.2 is mounted on the wheel frame assembly, so that the movement of the wheel frame assembly also drives the climbing wheel 2.2.2 to move, and the hinged telescopic beam 1.1 in the embodiment is transversely arranged, so that the climbing wheel 2.2.2 can horizontally move transversely or horizontally move along the length direction of the hinged telescopic beam 1.1.
Of course, in order to limit unnecessary movement of the climbing wheel 2.2.2, the installation sliding sleeve 2.1 is provided with a bolt hole which is 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 or release the installation sliding sleeve 2.1 on the hinged telescopic beam 1.1.
The wheel carrier component not only can move relative to the hinged telescopic beam 1.1, but also is movably connected with the mounting sliding sleeve 2.1, and the movable connection mode can be sliding or rotating. The wheel frame 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 frame assembly can be close to or far away from the pier column 4.
The steel cable 3.1 surrounds the outer side of the wheel frame assembly and applies pressure so as to increase the friction force between the climbing wheel 2.2.2 and the pier column 4, so that the climbing wheel cannot slide or fall off in the climbing process, and the stability and safety of the climbing of the platform can be ensured.
As shown in fig. 4, the mounting sliding sleeve 2.1 is provided with guiding through holes distributed along the lateral pressure direction, in this embodiment, the lateral pressure direction is a horizontal direction approaching the side wall of the abutment 4. The bottom of the installation sliding sleeve 2.1 can be provided with a horizontal protruding part, and the protruding part is provided with a guide through hole which penetrates horizontally. The installation sliding sleeve 2.1 can be square tube or circular tube, and the inner diameter is larger than the outer diameter of the main beam 1.1.1, so that the installation sliding sleeve 2.1 can slide on the main beam 1.1.1 and also can slide on the telescopic beam 1.1.2.
As shown in fig. 5, the wheel carriage assembly includes a wheel carriage body 2.2.1, a guide rail 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 guiding hanging rod 2.2.5 is fixedly connected with the wheel frame body 2.2.1, and the guiding hanging rod 2.2.5 penetrates through the guiding through hole and is movably connected with the mounting sliding sleeve 2.1. The guide hanging rod 2.2.5 is a U-shaped rod transversely arranged in the vertical plane, the U-shaped rod comprises two horizontal first cross rods and two horizontal second cross rods which are positioned at different heights, the first cross rods are lower than the second cross rods, the first cross rods are shorter than the second cross rods, the first cross rods are fixedly welded with the wheel frame body 2.2.1, the second cross rods are arranged in the guide through holes in a penetrating mode, and the guide hanging rod 2.2.5 and the wheel frame body 2.2.1 fixed with the guide hanging rod can move along the length direction of the second cross rods or the guide through holes, so that the wheel frame body 2.2.1 is close to or far away from the pier column 4.
The end of the wheel carrier body 2.2.1 facing away from the pier column 4 is also horizontally provided with a mast. The end of the mast facing away from the wheel carrier 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 wire rope 3.1 is wound around the outer side of the pulley 2.2.4, so that the wire rope 3.1 is engaged with the pulley 2.2.4 during adjustment of the wire rope 3.1, the pulley 2.2.4 is rotatable, and the tightening or loosening of the wire rope 3.1 is also more labor-saving. The lateral pressure applied by the steel rope 3.1 to the wheel set module is firstly transmitted to the pulley 2.2.4 by the steel rope 3.1, then transmitted to the mast, and finally transmitted to the climbing wheel 2.2.2 and the wheel frame body 2.2.1, so that the climbing wheel 2.2.2 is pressed on the pier column 4.
Referring to fig. 4 and 6, the wheel carrier assembly is divided into a power wheel set 2.2 and a support wheel set 2.3 in the embodiment; the two power wheelsets 2.2 are respectively arranged on two opposite sides of the pier stud 4, and the two support wheelsets 2.3 are respectively arranged on the other two opposite sides of the pier stud 4. In other words, the two power wheel sets 2.2 are arranged on two opposite sides of the annular structure of the variable diameter support respectively. The two supporting wheel sets 2.3 are respectively arranged on the other two opposite sides of the annular structure of the variable diameter support. The power wheel set 2.2 and the supporting wheel set 2.3 have the same structure, and mainly adopt the structure of the wheel frame assembly, and the difference is that the power wheel set 2.2 is not only provided with a climbing wheel 2.2.2, but also provided with a climbing supporting wheel 2.2.3, and the power wheel set 2.2 shown in fig. 5 comprises a climbing wheel 2.2.2 and two climbing supporting wheels 2.2.3, and the wheel surfaces of the climbing wheel 2.2.2 and the two climbing supporting wheels 2.2.3, which are opposite to the pier column 4, are positioned on the same vertical plane.
The supporting wheel set 2.3 shown in fig. 6 also comprises a wheel frame body 2.3.1, a guiding hanging rod, a pulley 2.3.3, a mast and other structures, and is different in that the wheel frame body 2.3.1 of the supporting wheel set 2.3 is not provided with climbing wheels 2.2.2, and four climbing supporting wheels 2.3.2 are arranged in a 2X2 array mode. The wheel faces of the four climbing support wheels 2.3.2, which are opposite to the pier column 4, are positioned on the same vertical face.
The wire rope 3.1 passes around the outer sides of all pulleys 2.2.4/2.3.3, i.e. the wire rope 3.1 passes around not only the outer sides of the pulleys 2.2.4 on the two power pulley sets 2.2 but also the outer sides of the pulleys 2.3.3 on the two support pulley sets 2.3. Therefore, when the steel cable 3.1 is folded, the two power wheel sets 2.2 and the two support wheel sets 2.3 synchronously move towards the pier column 4, the pier column 4 is clamped, friction wheels of the climbing wheels 2.2.2 and the climbing support wheels 2.2.3/2.3.2 and the pier column 4 are respectively improved, and the climbing stability of the platform is ensured.
In order to avoid friction contact between the steel cable 3.1 and the corner of the pier column 4 when the steel cable 3.1 surrounds the two power wheel sets 2.2 and the two support wheel sets 2.3, climbing stability is affected. As shown in fig. 1 and 4, the climbing system 2 further comprises a plurality of auxiliary wheel sets 2.4 movably distributed in the length direction of the steel rope 3.1. As is generally known, a pier column 4 having a rectangular horizontal cross section has four sides, with a corner formed between each adjacent two sides. The corners are sometimes also chamfered. In this embodiment, taking the pier stud 4 with a rectangular horizontal cross section as an example, four auxiliary wheel sets 2.4 are provided, and one auxiliary wheel set 2.4 is correspondingly distributed at each corner of the pier stud 4, so as to improve the smoothness of the platform in the climbing process.
As shown in fig. 7, the auxiliary wheelset 2.4 comprises: an auxiliary wheel carrier 2.4.1 and a plurality of auxiliary wheels.
The auxiliary wheel frame 2.4.1 is provided with a limit through groove or a limit hole, and the steel cable 3.1 passes through the limit through groove or the limit 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 an apex of the V-shaped bracket, which may be a limit hole. The length direction of the limit through groove or the axial direction of the limit hole is horizontal. The steel cable 3.1 can be embedded in the limit through groove and can slide along the length direction of the limit through groove. The steel rope 3.1 can also pass through the limiting hole, so that the auxiliary wheel frame 2.4.1 can be hung on the steel rope 3.1 and can slide along the length direction of the steel rope 3.1 to adjust the position of the auxiliary wheel frame 2.4.1. At the same time, the wire rope 3.1 needs to be movable laterally with respect to the auxiliary wheel frame 2.4.1 in order to achieve a smooth tightening or loosening of the wire rope 3.1.
A plurality of auxiliary wheels are arranged on the auxiliary wheel frame 2.4.1 and are enclosed to form an opening angle space which is used for enclosing the corner of the pier stud 4. Wherein, the liquid crystal display device comprises a liquid crystal display device, the open angle space comprises a first open space formed by the V-shaped brackets of the auxiliary wheel carrier 2.4.1. As shown in fig. 7, the plurality of auxiliary wheels comprises 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 frame 2.4.1 also comprises a vertical stand which is vertically arranged, and the middle part of the vertical stand and the V-shaped bracket are welded and fixed. Two main auxiliary wheels 2.4.2 are respectively arranged at two ends of the vertical frame in one-to-one correspondence. The open angle space also comprises a second space on one side of the vertical frame, which is opposite to the top end of the V-shaped bracket.
When the auxiliary wheelsets 2.4 are distributed at the corners of the pier stud 4 and climb together 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 corresponding auxiliary wheelset 2.4. After the auxiliary wheel frame 2.4.1 is subjected to lateral pressure by the steel ropes 3.1, both the main auxiliary wheel 2.4.2 and the secondary auxiliary wheels 2.4.3 are in contact with the corners of the abutment 4.
In some embodiments, the pier stud 4 is cylindrical, i.e. the horizontal cross section of the pier stud 4 is circular or oval, and accordingly, the auxiliary wheelsets 2.4 of the climbing system 2 may be uniformly distributed in plurality along the circumference of the pier stud 4 so that the wire ropes 3.1 do not contact the pier stud 4. Of course, it is also possible to use more support wheelsets 2.3 without the auxiliary wheelsets 2.4.
As shown in figures 8 and 9 of the drawings, the pretension assembly 3.2 comprises:
a first connector 3.2.1 is connected to one end of the wire rope 3.1.
And a second connecting member 3.2.5 connected to the other end of the wire rope 3.1.
An adjusting member connected between the first and second connection members 3.2.1 and 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 so as to adjust the loop diameter of the closed loop structure.
The manner in which the adjusting member adjusts the distance between the first connecting member 3.2.1 and the second connecting member 3.2.5 may be varied, and 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) that are in threaded engagement, the adjusting rod 3.2.3 is connected to the first connecting member 3.2.1, and the adjusting tube 3.2.4 is connected to the second connecting member 3.2.5. By rotating the adjusting rod 3.2.3 or the adjusting tube 3.2.4, the matching depth of the adjusting rod 3.2.3 and the adjusting tube 3.2.4 is changed, 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 tube 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 rope 3.1 is tightened, the ring diameter of the closed-loop structure is reduced, and the lateral pressure applied to the wheel set module is increased. Conversely, when the adjusting rod 3.2.3 is continuously screwed out of the adjusting pipe 3.2.4, the steel rope 3.1 is loosened, the ring diameter of the closed-loop structure is increased, and the lateral pressure applied to the wheel group module is reduced.
Referring to fig. 9, the first connecting member 3.2.1 has a tubular structure, and a thrust bearing 3.2.2 is disposed in the adjusting rod 3.2.3 opposite to the first connecting member, and the thrust bearing 3.2.2 is connected with the adjusting rod 3.2.3, so that the first connecting member 3.2.1 can not rotate when the adjusting rod 3.2.3 rotates, thereby avoiding affecting the steel cable 3.1. The first connecting piece 3.2.1 is provided with the open slot at the end facing away from the adjusting lever 3.2.3, and the first connecting piece 3.2.1 is also provided with a plug pin 3.2.6 at the end provided with the open slot. The axis direction of the bolt 3.2.6 is perpendicular to the direction of the opening groove penetrating through the first connecting piece 3.2.1, the bolt 3.2.6 is in plug-in and/or threaded fit with the first connecting piece 3.2.1, the bolt 3.2.6 is provided with a variable-diameter limiting section with different diameter sizes, and therefore at least one step part is formed and used for being matched with the steel rope 3.1, the steel rope 3.1 is limited to move, and the matching effect is improved. One end of the steel cable 3.1 connected with the first connecting piece 3.2.1 is provided with a closed ring part, the bolt 3.2.6 is pulled out, the ring part of the steel cable 3.1 is inserted into the first connecting piece 3.2.1 from the opening groove, the bolt 3.2.6 is inserted, the bolt 3.2.6 penetrates through the ring part, and the ring part is positioned at the reducing limiting section of the bolt 3.2.6. Be provided with on the first connecting piece 3.2.1 be used for with bolt 3.2.6 complex through-hole and screw hole, this through-hole and screw hole concentric arrangement are at the relative lateral wall of first connecting piece 3.2.1, bolt 3.2.6 has minor diameter section and major diameter section, when bolt 3.2.6 inserts first connecting piece 3.2.1, minor diameter section passes the screw hole earlier and inserts in the through-hole, major diameter section is provided with the external screw thread, with screw hole threaded connection to with bolt 3.2.6 and first connecting piece 3.2.1 threaded connection, avoid not hard up droing.
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, wherein the lifting ring is used for being connected with the 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 of the adjusting pipe 3.2.4 opposite to the adjusting rod 3.2.3.
Based on the same inventive concept, the invention also provides a climbing method of the variable diameter steel cable side pressure type pier stud self-climbing platform, which comprises the following steps:
the multi-section annular structure of the variable diameter frame 1 is enclosed outside the pier column 4. The length of each articulated telescopic girder 1.1 and the mating angle of the adjacent articulated telescopic girders 1.1 are adjusted.
The wheel group module of the climbing system 2 is arranged on the hinged telescopic beam 1.1 of the variable diameter frame 1. And the relative position of the wheel group module on the hinged telescopic beam 1.1 is adjusted.
The steel rope 3.1 of the side pressure system 3 is surrounded on the outer side of the wheelset module, the side pressure applied to the wheelset module by the steel rope 3.1 is regulated by utilizing the pre-tightening force component 3.2 of the side pressure system 3, and the climbing wheel 2.2.2 of the wheelset module is contacted with the outer side of the pier column 4 after being subjected to the side pressure. In addition, the auxiliary wheelset 2.4 is placed at the corner of the corresponding pier column 4, so that the auxiliary wheelset 2.4 is located between the steel cable 3.1 and the pier column 4, and the steel cable 3.1 also applies lateral pressure to the auxiliary wheelset 2.4. The pretension assembly 3.2 adjusts the lateral pressure so that the platform hovers outside the abutment 4. The functional member is mounted on the variable diameter frame 1.
And starting at least one driving piece connected with the climbing wheel 2.2.2 so as to realize automatic climbing of the platform. While activating the functional component.
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 examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the invention without departing from the principles thereof are intended to be comprehended by those skilled in the art and are intended to be within the scope of the invention.
Claims (6)
1. The utility model provides a variable diameter cable wire side pressure formula pier stud self-climbing platform which characterized in that includes:
the variable-diameter rack comprises a multi-section annular structure formed by hinging and enclosing a plurality of hinged telescopic beams end to end, wherein the annular structure is used for enclosing the outer side of a pier column;
the climbing system comprises a plurality of wheel group modules which are movably distributed on the hinged telescopic beam along the circumferential direction of the annular structure, wherein each wheel group module comprises a climbing wheel, the climbing wheel is contacted with the outer side of the pier post after being subjected to lateral pressure, and at least one climbing wheel is connected with a driving piece to realize automatic climbing of the platform;
a side pressure system comprising a steel cable and a pre-tightening force assembly, wherein the steel cable is enclosed outside the wheel group modules and is used for applying side pressure to the wheel group modules; the pre-tightening force assembly is connected with the steel cable and used for adjusting the lateral pressure applied by the steel cable;
the wheelset module further includes:
a sliding sleeve is arranged and movably sleeved on the hinged telescopic beam;
the wheel carrier assembly is arranged on the installation sliding sleeve and is movably connected with the installation sliding sleeve;
wherein the climbing wheel is arranged on the wheel frame assembly, and the steel cable surrounds the outer side of the wheel frame assembly and applies pressure so as to increase the friction force between the climbing wheel and the pier column;
the wheel carriage assembly includes:
the climbing wheel is arranged on the wheel frame body;
the guide hanging rod is connected with the wheel carrier body, guide through holes distributed along the lateral 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 guide hanging rod and the wheel frame body fixed with the guide hanging rod can move along the length direction of the guide through hole, so that the wheel frame body is close to or far from the pier stud;
the pulley is arranged on the wheel carrier body; the steel cable winds the outer side of the pulley;
the variable-diameter rack further comprises at least one functional component arranged on the hinged telescopic beam, wherein the functional component comprises an image detection device, a coating spraying device or a curing film reel;
the climbing system further comprises a plurality of auxiliary wheel sets movably distributed along the length direction of the steel cable, and the auxiliary wheel sets comprise:
the auxiliary wheel frame is provided with a limit through groove or a limit hole, and the steel cable passes through the limit through groove or the limit hole and is used for applying lateral pressure to the auxiliary wheel frame;
the auxiliary wheels are arranged on the auxiliary wheel frames and are enclosed to form an opening angle space, 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 post after being subjected to lateral pressure.
2. The variable diameter wire rope side pressure pier stud self-climbing platform of claim 1, wherein the pretensioning 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 so as to adjust the ring diameter of the closed loop structure.
3. The variable diameter wire rope side pressure type pier stud self-climbing platform according to claim 2, wherein the adjusting member comprises an adjusting rod and an adjusting pipe which 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.
4. The variable diameter wire rope side pressure pier stud self-climbing platform of claim 1, wherein the hinged telescopic beam comprises a main beam and a telescopic beam which are telescopically engaged with each other.
5. The variable diameter rope side pressure pier stud self-climbing platform according to claim 4, wherein the variable diameter frame further comprises a gusset disposed at an inner angle formed by two hinged telescopic beams of the ring structure, and the gusset is fixedly connected with one of the hinged telescopic beams at the inner angle.
6. The climbing method of the variable diameter wire rope side pressure type pier stud self-climbing platform according to any one of claims 1 to 5, comprising the steps of:
surrounding the multi-section annular structure of the variable-diameter frame on the outer side of the pier stud;
a wheel group module of the climbing system is arranged on a hinged telescopic beam of the variable-diameter rack;
surrounding a steel cable of the side pressure system on the outer side of the wheel group module, and adjusting the lateral pressure applied to the wheel group module by the steel cable by utilizing a pre-tightening force component of the side pressure system so that a climbing wheel of the wheel group module contacts with the outer side of a pier post after receiving the lateral pressure;
the pre-tightening force component adjusts the lateral pressure to enable the platform to hover at the outer side of the pier column; mounting the functional member on a variable diameter frame;
and starting at least one driving piece connected with the climbing wheel so as to realize automatic climbing of the platform, and starting the functional component.
Priority Applications (1)
| 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 |
Applications Claiming Priority (1)
| 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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| Publication Number | Publication Date |
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| CN115538315A CN115538315A (en) | 2022-12-30 |
| CN115538315B true CN115538315B (en) | 2023-07-14 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111455860A (en) * | 2020-04-30 | 2020-07-28 | 丁钟魁 | Pier curing means |
| 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 |
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| 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 |
| CN113756182B (en) * | 2021-09-05 | 2024-03-19 | 中建三局第一建设工程有限责任公司 | Pier stud maintenance device and laminating 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 |
| 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 (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111455860A (en) * | 2020-04-30 | 2020-07-28 | 丁钟魁 | Pier curing means |
| 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 |
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