CN112281681B - Pile driver for bridge girder and using method thereof - Google Patents
Pile driver for bridge girder and using method thereof Download PDFInfo
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- CN112281681B CN112281681B CN202011333147.4A CN202011333147A CN112281681B CN 112281681 B CN112281681 B CN 112281681B CN 202011333147 A CN202011333147 A CN 202011333147A CN 112281681 B CN112281681 B CN 112281681B
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000010720 hydraulic oil Substances 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000005553 drilling Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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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
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/02—Placing by driving
- E02D7/06—Power-driven drivers
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- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention discloses a pile driver for bridging and a use method thereof, wherein the pile driver comprises a platform, a pile frame, a supporting rod, a power hammer and a clamping mechanism, the pile driver is arranged at the front end of the bridge girder erection machine through the platform, the pile driver is matched with the bridge girder erection machine for use to construct a prefabricated pipe pile without occupying other sites, the clamping mechanism is used for limiting the pipe pile during piling, the power hammer and a drill rod are used for piling, the pile frame can be turned over by the supporting rod and the platform according to working condition requirements, the pile driver is convenient and flexible to use, the pile driver can complete piling work without additional equipment in water or a silt environment, the crane capable of freely rotating is arranged on the pile frame, the pile is used for taking piles, lifting, rotating and aligning with the power hammer after the pile frame is vertical, and then piling is carried out, so that the construction capacity and the utilization rate of the pile driver for the whole bridge girder erection machine are further improved, the mechanized operation of the whole pile driver construction process is realized, the investment of site manual work is reduced, the occupation of the construction sites is reduced, the existing traffic influence is small, and good economic benefits are achieved.
Description
Technical Field
The invention relates to the technical field of bridge pile foundation construction. More particularly, the present invention relates to a pile driver for bridging and a method of using the same.
Background
Pile foundation construction is a very important ring in the construction field, the pile driver is common equipment in the construction field, but the pile driving equipment of the existing pile driver is required to be attached to a chassis such as a crawler type, so that very large construction sites are required to be occupied, particularly, construction sites cannot be provided for the pile driver in water areas or other construction sites with higher requirements on environmental traffic and the like, prefabricated assembly is an important trend of bridge development, the lower structure of the bridge is a pile foundation or pile column integrated structure, the existing prefabricated assembly bridge Liang Zhuangzhu has large influence on traffic and environment, the integrated degree is low, the prefabricated pile cannot be simply erected by means of a bridge girder erection machine, the pile is required to be transported through other equipment in the bridging process, then the pile is subjected to operations such as drilling rod sleeving and aligning to a designated position, and the existing pile driver is inconvenient in construction and low in utilization rate and cannot well meet construction requirements.
Disclosure of Invention
It is an object of the present invention to solve at least the above problems and to provide at least the advantages to be described later.
The invention also aims to provide a pile driver for bridge erection and a using method thereof, which are used for installing by using a bridge girder erection machine and solve the technical problem that the pile driver in the prior art is inconvenient to use in bridge pile foundation construction.
To achieve these objects and other advantages and in accordance with the purpose of the invention, there is provided a pile driver for bridging, comprising:
The platform is fixedly connected to the front end of the bridge girder erection machine, a track is horizontally arranged on the platform towards the tail end of the bridge girder erection machine, a fixed seat is upwards arranged at the front end of the platform, and a hydraulic system, a winch and a hydraulic cylinder which are driven by the hydraulic system are arranged on the platform;
One end of the pile frame is hinged with the upper end of the fixed seat, a pulley block is fixed on the surface of the other end of the pile frame, and the telescopic end of the hydraulic oil cylinder is hinged with the pile frame;
One end of the stay bar is hinged with the pile frame, the other end of the stay bar is connected with a roller, and the roller is in sliding connection with the track;
the pile frame is respectively consistent with the hinging directions of the upper end of the fixed seat, the stay bar and the telescopic end of the hydraulic cylinder, and the hinging positions are sequentially arranged on the pile frame along the direction facing the pulley block;
The power hammer is in transmission connection with the winch through a steel wire rope, and the steel wire rope bypasses the pulley block;
And the clamping mechanism is fixed at the lower end of the pile frame and is positioned at the opposite side of the fixed seat on the pile frame.
Preferably, the pile frame is provided with a crane at one end provided with the pulley block, a rotating seat is connected between the crane and the pile frame, and the rotating direction of the rotating seat is vertical to the length direction of the pile frame.
Preferably, the crane is provided with a C-shaped lifting appliance, one end of the C-shaped lifting appliance is connected with the crane through a traction rope, the other end of the C-shaped lifting appliance is connected with a drill rod and/or a tubular pile, and the shape of a notch of the C-shaped lifting appliance is consistent with that of the power hammer.
Preferably, the track is of a concave groove structure, two side walls of the concave groove structure are symmetrically provided with limiting holes, and two pairs of limiting holes adjacent to the roller and respectively positioned on the front side and the rear side of the roller are respectively internally penetrated by a pin shaft.
Preferably, the platform comprises a bottom plate and frames vertically fixed on the left side and the right side of the bottom plate, the hydraulic system, the hydraulic oil cylinder, the winch and the fixing base are all installed on the bottom plate, the upper end of the frames is connected with travelling wheels outwards, and the travelling wheels travel on the bridge girder erection machine.
Preferably, the pile frame is provided with a ladder along the extending direction of the pile frame.
Preferably, the pile frame is provided with a sliding rail on the side surface of the side which is not hinged with the fixing seat along the length direction of the pile frame, and the power hammer is in sliding connection with the sliding rail.
Preferably, the rails are symmetrically arranged on two sides of the pile frame, two supporting rods are arranged, the upper end of each supporting rod is hinged with the pile frame respectively, the lower end of each supporting rod is provided with the roller, and one roller is positioned in one rail.
Preferably, the front end of the platform is further provided with a pile frame fixing mechanism, and the pile frame fixing mechanism comprises:
The pair of rotating shafts are vertically arranged and symmetrically distributed at the edge of the front end of the platform, the upper ends of the rotating shafts are rotationally connected with the platform through bearings, and the distance between the pair of rotating shafts is equal to 2 times of the diameter of the pile frame;
The inferior arc-shaped anchor clamps are symmetrically arranged at the lower ends of a pair of rotating shafts and are respectively connected with the corresponding rotating shafts in a rotating way, the radius of each inferior arc-shaped anchor clamp is equal to the diameter of the pile frame, each inferior arc-shaped anchor clamp comprises a first inferior arc section and a second inferior arc section which are respectively positioned at different sides of the corresponding rotating shafts, wherein the central angle of each first inferior arc section is 90 degrees and is positioned at the outer sides of the corresponding rotating shafts, the chord length of each second inferior arc section is smaller than the diameter of the pile frame, the end part of one second inferior arc section which is symmetrically arranged is vertically provided with a plurality of rectangular grooves penetrating through the side wall of the corresponding second inferior arc section, the upper side surface and/or the lower side surface of each rectangular groove is provided with a hemispherical groove, the end part of the other second inferior arc section is provided with a convex block corresponding to each rectangular groove, and the upper surface and/or the lower surface of the convex block is provided with a hemispherical elastic block corresponding to the hemispherical groove;
The connecting rod is oppositely arranged between the two symmetrically arranged second minor arc sections, one end of the connecting rod is hinged with the outer end of the second minor arc section on the corresponding side, and the other end of the connecting rod is hinged with the connecting rod which is oppositely arranged;
the upper end of the limiting rod is fixed at the bottom of the platform and positioned on the central axis of the pair of rotating shafts, and the horizontal distance between the limiting rod and the front end edge of the platform is smaller than the diameter of the pile frame;
The pushing block is connected to the lower end of the pile frame and faces the platform, and the length of the pushing block is consistent with the horizontal distance from the limiting rod to the front end edge of the platform.
The invention also discloses a using method of the pile driver for bridging, which comprises the following steps:
S1, the pile frame is positioned in a horizontal state before transportation, and then the whole bridge is transported to the front end of a bridge girder erection machine by a pile driver and is fixed;
S2, starting a hydraulic system to drive a telescopic end of a hydraulic oil cylinder to push a pile frame, enabling the pile frame to rotate around a fixed seat, enabling a roller to slide towards the fixed seat along a track until the pile frame is in a vertical state, stopping pushing the hydraulic oil cylinder, and limiting and fixing the roller;
S3, sleeving the drill rod into the tubular pile, integrally lifting the tubular pile by the crane, and rotating the crane by using the rotating seat after the tubular pile reaches a vertical state to enable the tubular pile and the drill rod to rotate to the forefront end or,
Connecting the drill pipe to a power hammer of a pile frame, lifting the pipe pile by a crane, rotating the crane by a rotating seat after the pipe pile reaches a vertical state to enable the pipe pile to rotate to the forefront end, sleeving the pipe pile outside the drill pipe,
Then penetrating the tubular pile and the drill rod into the clamping mechanism, and clamping the tubular pile by using the clamping mechanism;
s4, piling is started by using the power hammer.
The invention at least comprises the following beneficial effects: the pile driver for bridging comprises a platform, a pile frame, a supporting rod, a power hammer and a clamping mechanism, wherein the pile frame is arranged at the front end of a bridge girder erection machine through the platform and is matched with the bridge girder erection machine for use, construction of prefabricated pipe piles is carried out, other sites are not required, the pile frame is supported by the supporting rod, a hydraulic cylinder and a fixed seat on the platform after being in a vertical state, the pipe piles are limited in the piling process by the clamping mechanism during piling, the power hammer and a drill rod can be utilized for driving the pipe piles into a stratum in a drilling and driving mode, the pile frame can be folded and turned over by utilizing the supporting rod, a hydraulic system on the platform and the like according to working condition requirements, the pile frame can be used conveniently and flexibly, piling work can be completed without additional equipment in water or in a silt environment, in addition, a rotating seat is arranged on the rotating seat, the crane can rotate 360 degrees in a horizontal plane after the pile frame is in a vertical state, the pipe piles are taken, lifted, an angle is adjusted, and the pile is piled in a piling mode, the whole pile is driven by the bridge girder erection machine, the whole pile is driven by the lifting machine, the power hammer is in a position, the pile is further, the pile is driven, the whole pile is driven by the pile frame has the working site, the construction efficiency has small occupied site, the construction efficiency is reduced, the whole construction efficiency is realized, the construction efficiency is well, the construction efficiency is reduced, the construction efficiency is greatly, the construction efficiency is greatly has the construction efficiency is reduced, and the construction site is greatly, and the construction efficiency is has the construction cost is reduced.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic view of a construction of a bridge construction pile driver according to an embodiment of the present invention;
FIG. 2 is a schematic view of a construction of a bridge girder erection pile driver according to an embodiment of the present invention in a rotation direction of a crane;
FIG. 3 is a schematic view of a construction of a bridge girder pile driver according to an embodiment of the present invention;
FIG. 4 is a side view of a platform mounted on a bridge girder erection machine according to an embodiment of the present invention;
FIG. 5 is a bottom view of the pile frame securing mechanism prior to use in accordance with one embodiment of the present invention;
FIG. 6 is a bottom view of a pile frame securing mechanism according to one embodiment of the present invention;
fig. 7 is a schematic structural view of a minor arc hoop in an embodiment of the present invention.
Description of the specification reference numerals: 1. bridge girder erection machine, 2, platform, 3, track, 4, fixing base, 5, hydraulic system, 6, hydraulic cylinder, 7, pile frame, 8, pulley block, 9, stay bar, 10, roller, 11, power hammer, 12, wire rope, 13, fixture, 14, crane, 15, swivel mount, 16, drill pipe, 17, tubular pile, 18, walking wheel, 19, bottom plate, 20, frame, 21, cat ladder, 22, slide rail, 23, pivot, 24, inferior arc staple bolt, 25, first inferior arc section, 26, second inferior arc section, 27, rectangular groove, 28, hemispherical groove, 29, lug, 30, elastic block, 31, connecting rod, 32, limit rod, 33, pushing block.
Detailed Description
The present invention is described in further detail below with reference to the drawings to enable those skilled in the art to practice the invention by referring to the description.
The construction methods in the following embodiments are all conventional methods unless otherwise specified; in the description of the present invention, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus are not to be construed as limiting the present invention.
As shown in fig. 1 to 4, the present invention provides a pile driver for bridging, comprising:
the platform 2 is fixedly connected to the front end of the bridge girder erection machine 1, a track 3 is horizontally arranged on the platform 2 towards the tail end direction of the bridge girder erection machine 1, a fixed seat 4 is upwards arranged at the front end of the platform 2, and a hydraulic system 5, a winch and a hydraulic cylinder 6 which are respectively driven by the hydraulic system 5 are arranged on the platform 2;
The pile frame 7, one end of which is hinged with the upper end of the fixed seat 4, the other end surface of which is fixed with a pulley block 8, and the telescopic end of the hydraulic cylinder 6 is hinged with the pile frame 7;
one end of the stay bar 9 is hinged with the pile frame 7, the other end of the stay bar is connected with a roller 10, and the roller 10 is in sliding connection with the track 3;
The pile frame 7 is respectively consistent with the hinging directions of the upper end of the fixed seat 4, the stay bar 9 and the telescopic end of the hydraulic oil cylinder 6, and the hinging positions are sequentially arranged on the pile frame 7 along the direction facing the pulley block 8;
the power hammer 11 is in transmission connection with the winch through a steel wire rope 12, and the steel wire rope 12 bypasses the pulley block 8;
And a clamping mechanism 13 fixed at the lower end of the pile frame 7 and positioned on the pile frame 7 at the opposite side of the fixed seat 4.
In the bridge erecting process, pile foundations and section beams are required to be erected in sequence, a bridge girder erection machine 1 advances along with the bridge erecting progress and is always positioned at the front end of the bridge erecting direction, and the pile driver for bridge erection is installed at the front end of the bridge girder erection machine 1 and used, and the concrete construction steps comprise the following steps:
(1) Before transportation, the pile frame 7, the platform 2 and the track 3 on the platform 2 are arranged along the length direction of the bridge, namely the length direction of the bridge girder erection machine 1, in the direction from left to right in fig. 1-3, the support rod 9, the hydraulic oil cylinder 6 and the fixed seat 4 are sequentially arranged on the platform 2 and are respectively hinged with the pile frame 7 at preset positions, so that the pile frame 7 can rotate in a vertical plane where the bridge girder erection machine 1 is located, the roller 10 is arranged at one end of the support rod 9 which is not hinged with the pile frame 7 and is arranged in the track 3, one end of the steel wire rope 12 is connected with the power hammer 11, the other end of the steel wire rope bypasses the pulley block 8 on the pile frame 7 to be connected with the winch, the pile frame 7 is arranged into a horizontal state before transportation, and then the bridge girder erection machine is transported to the front end of the bridge girder erection machine 1 and the platform 2 is fixed with the bridge girder erection machine 1.
(2) The hydraulic system 5 is started to drive the telescopic end of the hydraulic cylinder 6 to push the pile frame 7, the pile frame 7 rotates around the upper end of the fixed seat 4, the pile frame 7 drives the hinged end of the supporting rod 9 to move upwards, one end of the supporting rod 9, provided with the idler wheel 10, moves towards the front end of the platform 2 along the track 3 until the pile frame 7 is in a vertical state, the lower end of the pile frame 7 abuts against the front end edge of the platform 2, the telescopic end of the hydraulic cylinder 6 stops pushing and keeps motionless, then the idler wheel 10 is limited and fixed, the pile frame 7 and the platform 2 are fixed, and at the moment, the pile frame 7 is mainly supported through the fixed seat 4 on the platform 2, the telescopic end of the hydraulic cylinder 6 and the supporting rod 9.
(3) The steel wire rope 12 is retracted by utilizing a winch, so that the power hammer 11 reaches a proper position and the drill rod 16 is installed, the drill rod 16 can be directly sleeved into the pipe pile 17 to accelerate the construction progress, the whole is connected with the power hammer 11, the steel wire rope 12 is retracted, the pipe pile 17 and the drill rod 16 are integrally lowered into the clamping mechanism 13, the pipe pile 17 is clamped through the clamping mechanism 13, vertical limiting is realized, and the perpendicularity and stability of the pipe pile 17 are ensured;
(4) Piling is started by means of the power hammer 11.
The pile driver for bridging can be matched with the bridge girder erection machine 1 for use, construction of the prefabricated pipe piles 17 is carried out without occupying other sites, the pile piles 17 are driven into the stratum in a drilling and beating mode through the power hammer 11 and the drill rod 16 by utilizing the stay bars 9, the hydraulic system 5 on the platform 2 and the like to fold and overturn before and after being transported to a construction site so as to adapt to different working conditions, and the pile foundation construction convenience and the construction efficiency in the bridging process are improved.
In another technical solution, as shown in fig. 1-3, the pile frame 7 is provided with a crane 14 at one end provided with the pulley block 8, a rotating seat 15 is connected between the crane 14 and the pile frame 7, and the rotating direction of the rotating seat 15 is perpendicular to the length direction of the pile frame 7.
When the pile frame 7 is turned to a vertical state, the crane 14 is positioned at the top of the pile frame 7, 360-degree rotation is carried out through the rotary seat 15, when the drill rod 16 and the pipe pile 17 are lifted, the crane 14 is used for lowering the lifting end on the crane 14 in the direction of the bridge girder erection machine 1, then the pipe pile 17 penetrating the drill rod 16 is connected with the lifting end of the crane 14, the crane 14 is rotated for 180 degrees, the pipe pile 17 penetrating the drill rod 16 is positioned at the front side of the pile frame 7 and is lowered into the clamping mechanism 13 for clamping and fixing, and then the power hammer 11 is driven to move downwards, so that the alignment and connection of the drill rod 16 and the pipe pile 17 and the power hammer 11 are realized. The crane 14 is used for lifting, direction changing, rotating and aligning the tubular piles 17 and the like transported by the bridge girder erection machine 1, so that the efficiency of pile foundation construction is remarkably improved, and the utilization rate of a pile driver is improved. The rotary seat can be set into a large rotary gear which is fixedly connected with the top of the pile frame through a bearing, so that the large rotary gear can freely rotate in a plane vertical to the pile frame, a mounting plate is fixed on the surface of the large rotary gear, and a crane is fixed on the mounting plate.
In another technical scheme, as shown in fig. 1-3, a C-shaped lifting appliance is arranged on the crane 14, one end of the C-shaped lifting appliance is connected with the crane 14 through a traction rope, the other end of the C-shaped lifting appliance is connected with a drill pipe 16 and/or a tubular pile 17, and the shape of a notch of the C-shaped lifting appliance is consistent with that of the power hammer 11.
Through setting up the lifting hook that is C type structure on loop wheel machine 14, after utilizing loop wheel machine 14 to hoist tubular pile 17, drilling rod 16 and rotate 180 degrees, make the notch of C type hoist be close to power hammer 11 and remove, until power hammer 11 is located the notch of C type hoist, the tubular pile 17 of lowering again, drilling rod 16 get into fixture 13, realized tubular pile 17, drilling rod 16 and power hammer 11, fixture 13's quick counterpoint, can not disturb the removal route of tubular pile 17, drilling rod 16.
In another technical scheme, as shown in fig. 1-3, the track 3 is a concave groove structure, two side walls of the concave groove structure are symmetrically provided with limiting holes, and two pairs of limiting holes adjacent to the roller 10 and respectively positioned at the front side and the rear side of the roller 10 are respectively penetrated by a pin shaft.
Through setting up spacing hole and round pin axle, when pile frame 7 upset to vertical state, need carry out spacing fixed to gyro wheel 10, respectively penetrate the round pin axle in the spacing hole around gyro wheel 10 and realize, it is simple and convenient.
In another technical scheme, as shown in fig. 1-4, the platform 2 comprises a bottom plate 19 and frames 20 vertically fixed on the left side and the right side of the bottom plate 19, the hydraulic system 5, the hydraulic cylinder 6, the winch and the fixing seat 4 are all installed on the bottom plate 19, the upper end of the frames 20 is externally connected with travelling wheels 18, and the travelling wheels 18 travel on the bridge girder erection machine 1.
The frame 20 is arranged to be connected between the platform 2 and the bridge girder erection machine 1, the travelling wheels 18 are arranged to facilitate the movement of the platform 2 on the bridge girder erection machine 1, the frame 20 is used for providing stressed support for a hydraulic system 5 and the like arranged on the platform 2 and transmitting gravity to the bridge girder erection machine 1 through the travelling wheels 18, and when the platform 2 is required to be fixed, fixing pieces such as turnbuckles and the like are arranged between the frame 20 and the bridge girder erection machine 1, so that the installation is convenient.
In another embodiment, as shown in fig. 1-3, a ladder stand 21 is disposed on the pile frame 7 along the extending direction of the pile frame 7.
The climbing ladder 21 is arranged, so that constructors can observe the construction condition up and down conveniently, and the maintenance and the installation of pile foundations, power hammers 11 of other facilities and the like are also facilitated.
In another technical solution, as shown in fig. 1-3, the pile frame 7 is provided with a sliding rail 22 along the length direction of the pile frame 7 on the side surface of the side not hinged with the fixing seat 4, and the power hammer 11 is slidably connected with the sliding rail 22.
By arranging the slide rail 22, the power hammer 11 vertically moves along the slide rail 22, the moving direction of the power hammer 11 is limited and guided, and the repeatability and the accuracy of the piling position of the power hammer 11 are improved.
In another technical scheme, as shown in fig. 1-3, the rails 3 are symmetrically arranged on two sides of the pile frame 7, two supporting rods 9 are arranged, the upper end of each supporting rod 9 is hinged with the pile frame 7, the lower end of each supporting rod 9 is provided with the roller 10, and one roller 10 is located in one rail 3.
Through setting up a pair of track 3, a pair of vaulting pole 9 and a pair of gyro wheel 10 that correspond, support pile frame 7 jointly in the both sides of pile frame 7, improve the stability to pile frame 7 rotation process and reach the vertical back support.
In another technical solution, as shown in fig. 4-6, the front end of the platform 2 is further provided with a pile frame fixing mechanism, where the pile frame fixing mechanism includes:
The pair of rotating shafts 23 are vertically arranged and symmetrically distributed at the edge of the front end of the platform 2, the upper ends of the rotating shafts 23 are rotationally connected with the platform 2 through bearings, and the distance between the pair of rotating shafts 23 is equal to 2 times of the diameter of the pile frame 7;
The inferior arc hoops 24 are symmetrically arranged at the lower ends of the pair of rotating shafts 23 and are respectively in rotary connection with the corresponding rotating shafts 23, the radius of each inferior arc hoop 24 is equal to the diameter of the pile frame 7, each inferior arc hoop 24 comprises a first inferior arc section 25 and a second inferior arc section 26 which are respectively positioned at different sides of the corresponding rotating shaft 23, wherein the central angle of the first inferior arc section 25 is 90 degrees and is positioned at the outer sides of the pair of rotating shafts 23, the chord length of each second inferior arc section 26 is smaller than the diameter of the pile frame 7, the end part of one second inferior arc section 26 which is symmetrically arranged is vertically provided with a plurality of rectangular grooves 27 penetrating through the side wall of the corresponding second inferior arc section 26, the upper side surface and/or the lower side surface of each rectangular groove 27 is provided with a hemispherical groove 28, the end part of the other second arc section 26 is correspondingly provided with a convex block 29, and the upper surface and/or the lower surface of the convex block 29 is correspondingly provided with a hemispherical elastic block 30;
a connecting rod 31 which is oppositely arranged between the two symmetrically arranged second minor arc sections 26, one end of the connecting rod 31 is hinged with the outer end of the second minor arc section 26 on the corresponding side, and the other end is hinged with the oppositely arranged connecting rod 31;
the upper end of the limiting rod 32 is fixed at the bottom of the platform 2 and positioned on the central axis of the pair of rotating shafts 23, and the horizontal distance between the limiting rod 32 and the front end edge of the platform 2 is smaller than the diameter of the pile frame 7;
The pushing block 33 is connected to the lower end of the pile frame 7 and is arranged towards the platform 2, and the length of the pushing block 33 is consistent with the horizontal distance from the limit rod 32 to the front end edge of the platform 2.
When the sizes or positions of the minor arc hoops 24, the connecting rods 31, the limiting rods 32 and the pushing blocks 33 are set, according to the diameter setting of the pile frame 7, when the pile frame 7 is in a vertical state, the first minor arc sections 25 of the two minor arc hoops 24 which are symmetrically arranged can be spliced into a semicircle and limit the pile frame 7 between the front end edge of the platform 2 and the first minor arc sections 25, the arc length of the second minor arc sections 26 cannot interfere the synchronous rotation process of the whole minor arc hoops 24, when the two first minor arc sections 25 which are symmetrically arranged can be spliced into a semicircle, the two second minor arc sections 26 are connected through the pair of connecting rods 31, and the horizontal distance between the limiting rods 32 and the front end edge of the platform 2 is slightly smaller than the diameter of the pile frame 7 and consistent with the length of the pushing blocks 33, so that the pair of connecting rods 31 are always positioned in a circle enclosed by the minor arc hoops 24, repeated pushing of the pushing blocks 33 can not interfere the pile frame 7 to reach the vertical state completely.
When the pile frame 7 is close to a vertical state, the pushing block 33 on one side of the pile frame 7 facing the platform 2 starts to contact with a connecting rod 31 hinge point oppositely arranged between two second minor arc sections 26, and starts to push the connecting rod 31, the connecting rod 31 drives the minor arc hoops 24 on the corresponding side to rotate around the corresponding rotating shafts 23 respectively until the hinged positions of the two connecting rods 31 are abutted to the limit rods 32 to stop moving, at the moment, the two first minor arc sections 25 are symmetrically arranged, the convex blocks 29 of the first minor arc sections 25 enter corresponding rectangular grooves 27, the elastic blocks 30 on the convex blocks 29 enter hemispherical grooves 28, so that the symmetrically arranged minor arc hoops 24 are spliced into a semicircle at the front end of the platform 2, the lower ends of the pile frame 7 are fixed and limited, the power hammer 11 is prevented from tilting clockwise as shown in fig. 1-3, the stability of the pile frame 7 is improved, when the pile frame 7 is required to be turned to a horizontal state after the completion, the limit fixing of the rolling wheels 10 is released, the pile frame 7 is enabled to move towards the lower ends of the corresponding minor arc hoops 24 as shown in fig. 1-3, the second arc hoops 24 are enabled to move away from the corresponding minor arc sections 24 through the elastic blocks 30 of the hydraulic cylinder 6, and the second arc hoops 24 are enabled to move towards the lower ends of the corresponding minor arc frames 24, and the second arc hoops 24 are far away from the corresponding arc frames 25, and the opposite arc hoops 24 are arranged, and the stress is kept far from the opposite to the opposite arc hoops 24 is arranged.
In another technical scheme, the invention provides a use method of a pile driver for bridging, which comprises the following steps:
S1, the pile frame 7 is positioned in a horizontal state before transportation, and then the whole bridge is transported to the front end of the bridge girder erection machine 1 by a pile driver and is fixed;
s2, starting a hydraulic system 5 to drive a telescopic end of a hydraulic oil cylinder 6 to push a pile frame 7, enabling the pile frame 7 to rotate around a fixed seat 4, enabling a roller 10 to slide along a track 3 towards the fixed seat 4 until the pile frame 7 is in a vertical state, stopping pushing the hydraulic oil cylinder 6, and limiting and fixing the roller 10;
s3, sleeving the drill rod 16 into the tubular pile 17, integrally lifting the tubular pile 17 by the crane 14, and rotating the crane 14 by using the rotating seat 15 after the tubular pile 17 reaches a vertical state, so that the tubular pile 17 and the drill rod 16 are rotated to the forefront end, or,
Connecting the drill pipe 16 to the power hammer 11 of the pile frame 7, lifting the pipe pile 17 by the crane 14, rotating the crane 14 by the rotary seat 15 after the pipe pile 17 reaches a vertical state, enabling the pipe pile 17 to rotate to the forefront end, sleeving the pipe pile 17 outside the drill pipe 16,
Then penetrating the tubular pile 17 and the drill rod 16 into the clamping mechanism 13, and clamping the tubular pile 17 by using the clamping mechanism 13;
s4, piling is started by using the power hammer 11.
In summary, the pile driver for bridging of the invention comprises a platform, a pile frame, a supporting rod, a power hammer, a clamping mechanism and the like, the pile driver is installed at the front end of the bridge girder erection machine through the platform and is matched with the bridge girder erection machine for use, construction of prefabricated pipe piles is carried out without occupying other sites, the pile frame is directly supported by the supporting rod on the platform, the telescopic end of a hydraulic cylinder and a fixed seat after being in a vertical state, the pile driver can drive the pipe piles into a stratum in a drilling and driving mode by using the power hammer and a drill rod during piling, the clamping mechanism limits the pipe piles in the piling process, perpendicularity and stability of the pipe piles are ensured, the pile frame can also utilize the supporting rod, the hydraulic system on the platform and the like for folding and overturning according to working condition requirements, the pile frame can also be used for completing piling work without additional input of other equipment in water or in a silt environment, in addition, the crane is arranged on the rotary seat, after being in the rotary seat, the pile driver can rotate 360 degrees in a horizontal plane after being in a vertical state, the pile driver is transported, the pile driver is used for taking piles, adjusting angles and driving the pile piles, aligning with the power hammer, and the pile driver is carried out, and the whole construction site is carried out, the whole construction efficiency is reduced, the construction efficiency is reduced, and the whole construction efficiency is reduced, and the construction efficiency is reduced.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and drawings shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (8)
1. Pile driver for bridging, characterized by comprising:
The platform is fixedly connected to the front end of the bridge girder erection machine, a track is horizontally arranged on the platform towards the tail end of the bridge girder erection machine, a fixed seat is upwards arranged at the front end of the platform, and a hydraulic system, a winch and a hydraulic cylinder which are driven by the hydraulic system are arranged on the platform;
One end of the pile frame is hinged with the upper end of the fixed seat, a pulley block is fixed on the surface of the other end of the pile frame, and the telescopic end of the hydraulic oil cylinder is hinged with the pile frame;
One end of the stay bar is hinged with the pile frame, the other end of the stay bar is connected with a roller, and the roller is in sliding connection with the track;
the pile frame is respectively consistent with the hinging directions of the upper end of the fixed seat, the stay bar and the telescopic end of the hydraulic cylinder, and the hinging positions are sequentially arranged on the pile frame along the direction facing the pulley block;
The power hammer is in transmission connection with the winch through a steel wire rope, and the steel wire rope bypasses the pulley block;
The clamping mechanism is fixed at the lower end of the pile frame and is positioned on the pile frame at the opposite side of the fixed seat;
The pile frame is provided with a crane at one end provided with the pulley block, a rotating seat is connected between the crane and the pile frame, and the rotating direction of the rotating seat is vertical to the length direction of the pile frame;
The front end of platform still is provided with stake frame fixed establishment, stake frame fixed establishment includes:
The pair of rotating shafts are vertically arranged and symmetrically distributed at the edge of the front end of the platform, the upper ends of the rotating shafts are rotationally connected with the platform through bearings, and the distance between the pair of rotating shafts is equal to 2 times of the diameter of the pile frame;
The inferior arc-shaped anchor clamps are symmetrically arranged at the lower ends of a pair of rotating shafts and are respectively connected with the corresponding rotating shafts in a rotating way, the radius of each inferior arc-shaped anchor clamp is equal to the diameter of the pile frame, each inferior arc-shaped anchor clamp comprises a first inferior arc section and a second inferior arc section which are respectively positioned at different sides of the corresponding rotating shafts, wherein the central angle of each first inferior arc section is 90 degrees and is positioned at the outer sides of the corresponding rotating shafts, the chord length of each second inferior arc section is smaller than the diameter of the pile frame, the end part of one second inferior arc section which is symmetrically arranged is vertically provided with a plurality of rectangular grooves penetrating through the side wall of the corresponding second inferior arc section, the upper side surface and/or the lower side surface of each rectangular groove is provided with a hemispherical groove, the end part of the other second inferior arc section is provided with a convex block corresponding to each rectangular groove, and the upper surface and/or the lower surface of the convex block is provided with a hemispherical elastic block corresponding to the hemispherical groove;
The connecting rod is oppositely arranged between the two symmetrically arranged second minor arc sections, one end of the connecting rod is hinged with the outer end of the second minor arc section on the corresponding side, and the other end of the connecting rod is hinged with the connecting rod which is oppositely arranged;
the upper end of the limiting rod is fixed at the bottom of the platform and positioned on the central axis of the pair of rotating shafts, and the horizontal distance between the limiting rod and the front end edge of the platform is smaller than the diameter of the pile frame;
The pushing block is connected to the lower end of the pile frame and faces the platform, and the length of the pushing block is consistent with the horizontal distance from the limiting rod to the front end edge of the platform.
2. A pile driver for bridging according to claim 1, wherein the crane is provided with a C-shaped sling, one end of the C-shaped sling is connected with the crane by a traction rope, the other end is connected with a drill pipe and/or a pipe pile, and the shape of the notch of the C-shaped sling is consistent with the shape of the power hammer.
3. A pile driver for bridging according to claim 1, wherein the track is a concave groove structure, two side walls of the concave groove structure are symmetrically provided with limiting holes, and two pairs of limiting holes adjacent to the roller and respectively positioned on the front side and the rear side of the roller are respectively penetrated by a pin shaft.
4. A pile driver for bridging according to claim 1, wherein the platform comprises a base plate and frames vertically fixed on the left and right sides of the base plate, the hydraulic system, hydraulic cylinder, winch and fixing base are all mounted on the base plate, the upper end of the frames is connected with travelling wheels outwards, and the travelling wheels travel on the bridge girder erection machine.
5. A pile driver for bridging according to claim 1, characterised in that the pile frame is provided with a ladder along the extension of the pile frame.
6. A pile driver for bridging according to claim 1, wherein the pile frame is provided with a slide rail along the length of the pile frame on the side not hinged to the fixed base, and the power hammer is slidably connected to the slide rail.
7. A pile driver for bridging according to claim 1, wherein the tracks are symmetrically arranged on both sides of the pile frame, two struts are provided, the upper end of each strut is hinged to the pile frame, the lower end of each strut is provided with the roller, and one roller is located in one track.
8. A method of using a bridge girder erection pile driver according to claim 1, comprising the steps of:
S1, before transportation, the pile frame is in a horizontal state, and then the whole bridge is transported to the front end of the bridge girder erection machine by using a pile driver and is fixed;
S2, starting the hydraulic system to drive the telescopic end of the hydraulic oil cylinder to push the pile frame, enabling the pile frame to rotate around the fixed seat, enabling the roller to slide towards the fixed seat along the track until the pile frame is in a vertical state, stopping pushing by the hydraulic oil cylinder, and limiting and fixing the roller;
S3, sleeving a drill rod into the tubular pile and integrally lifting the tubular pile by the crane, and rotating the crane by using the rotating seat after the tubular pile reaches a vertical state to enable the tubular pile and the drill rod to rotate to the forefront end or,
Connecting the drill pipe to the power hammer of the pile frame, lifting the pipe pile by the crane, rotating the crane by the rotating seat after the pipe pile reaches a vertical state, enabling the pipe pile to rotate to the forefront end, sleeving the pipe pile outside the drill pipe,
Then penetrating the tubular pile and the drill rod into the clamping mechanism, and clamping the tubular pile by using the clamping mechanism;
s4, piling is started by using the power hammer.
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| CN113026559B (en) * | 2021-02-05 | 2022-11-25 | 中交第二航务工程局有限公司 | Pile driving and bridge erecting all-in-one machine with tail pile feeding and vertical pile taking functions and construction method thereof |
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| CN210177371U (en) * | 2019-05-06 | 2020-03-24 | 中交第二航务工程局有限公司 | Cable-stayed cantilever type integrated bridge girder erection machine capable of piling |
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| CN107882028A (en) * | 2017-11-18 | 2018-04-06 | 东台市巨力机械制造有限公司 | A kind of caterpillar telescopic arm piling machine |
| CN110685214A (en) * | 2018-07-05 | 2020-01-14 | 中交第二航务工程局有限公司 | Pile-column integrated bridge substructure, construction device and method |
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