CN112281681A - Pile driver for bridging and using method thereof - Google Patents
Pile driver for bridging and using method thereof Download PDFInfo
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- CN112281681A CN112281681A CN202011333147.4A CN202011333147A CN112281681A CN 112281681 A CN112281681 A CN 112281681A CN 202011333147 A CN202011333147 A CN 202011333147A CN 112281681 A CN112281681 A CN 112281681A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000010720 hydraulic oil Substances 0.000 claims description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 238000010276 construction Methods 0.000 abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000010802 sludge Substances 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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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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- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention discloses a pile driver for bridging and a using method thereof, the pile driver comprises a platform, a pile frame, a stay bar, a power hammer and a clamping mechanism, the pile frame is arranged at the front end of the bridge driver through the platform, the pile driver is matched with the bridge driver for construction of a prefabricated pipe pile without occupying other fields, the pipe pile is limited by the clamping mechanism during pile driving, the pile is driven by the power hammer and a drill rod, the pile frame can be turned over by the stay bar and the platform according to the working condition requirements, the pile driver is convenient and flexible to use, the pile driving work can be completed without additionally putting other equipment in water or sludge environment, a crane capable of freely rotating is arranged on the pile frame, the pile driver is used for taking, lifting, rotating and aligning the pile with the power hammer after the pile frame is vertical, then the pile driving is carried out, the construction capability and the utilization rate of the whole pile driver for bridging are further improved, and the mechanized operation of the whole process of pile foundation construction is realized, the investment of field labor is reduced, the occupation of a construction site is reduced, the influence on the existing traffic 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 bridge pile driver and a method of using the same.
Background
Pile foundation construction is a very important part in the construction field, a pile driver is common equipment in the construction field, however, the piling equipment of the existing piling machine is required to be attached to chassis such as a crawler type and the like, a very large construction site is required to be occupied, particularly, the construction site cannot be provided for the pile driver in the water area or other construction sites with higher requirements on environmental traffic and the like, the prefabricated assembly is an important trend of bridge development, the lower part structure of the bridge is a structure integrating pile foundations and piles, the existing prefabricated bridge pile construction has large influence on traffic and environment and low integration degree, the prefabricated pipe piles cannot be erected by a bridge erecting machine alone, the tubular pile needs to be transported through other equipment in the bridging process, then the tubular pile is subjected to operations such as drilling rod sleeving, alignment and designated position, the existing pile driver is inconvenient to construct, low in utilization rate and incapable of meeting construction requirements well.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
The invention also aims to provide a bridge erecting pile driver and a use method thereof, which are used for mounting by using the bridge erecting machine and solve the technical problem that the pile driver in the prior art is inconvenient to use during bridge pile foundation construction.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a pile driver for bridge erection, including:
the platform is fixedly connected to the front end of the bridge girder erection machine, a track is horizontally arranged on the platform in the direction 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 oil cylinder which are respectively 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 support rod is hinged with the pile frame, the other end of the support rod is connected with a roller, and the roller is connected with the track in a sliding manner;
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 oil cylinder, and the hinging positions are sequentially arranged on the pile frame along the direction towards 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 on one side, opposite to the fixed seat, of 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 perpendicular 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 located on the front side and the rear side of the roller are respectively and jointly 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 seat are all installed on the bottom plate, the upper end of the frame is outwards connected with a walking wheel, and the walking wheel walks on the bridge girder erection machine.
Preferably, a ladder stand is arranged on the pile frame along the extending direction of the pile frame.
Preferably, the pile frame is provided with a slide rail on the side surface of the side not hinged to the fixed seat along the length direction of the pile frame, and the power hammer is connected with the slide rail in a sliding manner.
Preferably, the tracks are symmetrically arranged on two sides of the pile frame, two support rods are arranged, the upper end of each support rod is hinged to the pile frame, the lower end of each support rod is provided with the roller, and one roller is located in one track.
Preferably, the front end of platform still is provided with pile frame fixed establishment, pile frame fixed establishment includes:
the pair of rotating shafts are vertically arranged and symmetrically distributed on the edge of the front end of the platform, the upper ends of the rotating shafts are rotatably 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;
inferior arc hoops are symmetrically arranged at the lower ends of the pair of rotating shafts and are respectively connected with the corresponding rotating shafts in a rotating way, the radius of each inferior arc hoop is equal to the diameter of the pile frame, each inferior arc hoop 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 the first minor arc section is 90 degrees and is positioned at the outer sides of the pair of rotating shafts, the chord length of the second minor arc section is smaller than the diameter of the pile frame, the end part of one of the second minor arc sections which are symmetrically arranged is vertically provided with a plurality of rectangular grooves which penetrate through the side wall of the second minor 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 minor arc section is provided with a convex block corresponding to each rectangular groove, and the upper surface and/or the lower surface of each 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 oppositely arranged connecting rod;
the upper end of the limiting rod is fixed at the bottom of the platform and is positioned on the central axis of the rotating shafts, and the horizontal distance between the limiting rod and the edge of the front end of the platform is smaller than the diameter of the pile frame;
and 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 edge of the front end of the platform.
The invention also discloses a use method of the pile driver for bridging, which comprises the following steps:
s1, the pile frame is in a horizontal state before transportation, and then the whole bridge is transported to the front end of the bridge girder erection machine by the pile driver and fixed;
s2, starting a 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 rail until the pile frame is in a vertical state, stopping pushing by the hydraulic oil cylinder and limiting and fixing the roller;
s3, the drill rod is sleeved into the tubular pile and integrally lifted by the crane, after the tubular pile is in a vertical state, the crane is rotated by the rotating base, so that the tubular pile and the drill rod rotate to the foremost end, or,
connecting a drill rod to a power hammer of a pile frame, hoisting the tubular pile by a crane, rotating the crane by using a rotating seat after the tubular pile is in a vertical state to rotate the tubular pile to the foremost end, then sleeving the tubular pile outside the drill rod,
then the tubular pile and the drill rod are inserted into the clamping mechanism, and the tubular pile is clamped by the clamping mechanism;
and S4, driving the pile 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 stay bar, a power hammer and a clamping mechanism, wherein the platform is arranged at the front end of the bridge driver and is matched with the bridge driver for use, the construction of the prefabricated pipe pile is carried out, other fields are not occupied, the pile frame is supported by the stay bar, a hydraulic oil cylinder and a fixed seat on the platform after being positioned in a vertical state, the pile is limited by the clamping mechanism during the pile driving process by the clamping mechanism during the pile driving, the pipe pile can be driven into the stratum by the power hammer and the drill bar in a drilling and driving mode, the pile frame can be folded and overturned by the stay bar and a hydraulic system on the platform according to working condition requirements, the pile driver is convenient and flexible to use, other equipment is not required to be additionally put into the pile driver in water or sludge environment, in addition, a rotating seat is arranged on the pile frame, a crane is arranged on the rotating seat, and can rotate in a horizontal plane for 360 degrees after the pile frame is, after the tubular pile is transported by the bridge erecting machine, the tubular pile is taken, lifted and aligned with the power hammer, and then is driven, so that the construction capacity and the utilization rate of the whole bridge erecting pile driver are further improved, the mechanized operation of the whole process of pile foundation construction is realized, the on-site manual investment is reduced, the occupation of a construction site is reduced, the influence on existing traffic is small, and good economic benefits are achieved.
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 diagram of a bridge erecting pile driver according to an embodiment of the present invention;
FIG. 2 is a schematic view of the bridge erecting pile driver in the direction of rotation of the crane according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a bridging pile driver according to an embodiment of the present invention;
FIG. 4 is a side view block diagram of a platform mounted on a bridge girder erection machine in an embodiment of the present invention;
fig. 5 is a bottom view of the pile frame securing mechanism in an embodiment of the present invention prior to use;
fig. 6 is a bottom view of the pile frame fixing mechanism in fixing the pile frame according to an embodiment of the present invention;
fig. 7 is a schematic structural view of an inferior arc-shaped hoop according to an embodiment of the present invention.
The specification reference numbers indicate: 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, brace rod, 10, roller, 11, power hammer, 12, wire rope, 13, clamping mechanism, 14, crane, 15, rotary base, 16, drill rod, 17, tubular pile, 18, walking wheel, 19, bottom plate, 20, frame, 21, ladder stand, 22, slide rail, 23, rotating shaft, 24, minor arc staple bolt, 25, first minor arc segment, 26, second minor arc segment, 27, rectangular groove, 28, hemispherical groove, 29, lug, 30, elastic block, 31, connecting rod, 32, limiting rod, 33 and top pushing block.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It should be noted that the construction methods described in the following embodiments are all conventional methods unless otherwise specified; in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "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 only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 4, the present invention provides a pile driver for a bridge, 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 oil cylinder 6 which are respectively driven by the hydraulic system 5 are arranged on the platform 2;
one end of the pile frame 7 is hinged with the upper end of the fixed seat 4, a pulley block 8 is fixed on the surface of the other end of the pile frame 7, and the telescopic end of the hydraulic oil cylinder 6 is hinged with the pile frame 7;
one end of the support rod 9 is hinged with the pile frame 7, the other end of the support rod is connected with a roller 10, and the roller 10 is connected with the track 3 in a sliding manner;
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 towards 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 the clamping mechanism 13 is fixed at the lower end of the pile frame 7 and is positioned on the opposite side of the pile frame 7 from the fixed seat 4.
The pile driver for bridging is arranged at the front end of the bridge girder erection machine 1 for use, and the concrete construction steps are as follows:
(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 erecting machine 1, in the direction from left to right in the figures 1-3, the supporting rod 9, the hydraulic oil cylinder 6 and the fixing seat 4 are sequentially arranged on the platform 2 and are sequentially hinged with the pile frame 7 at preset positions respectively, so that the pile frame 7 can rotate in the vertical plane where the bridge erecting machine 1 is arranged, the roller 10 is arranged at one end of the supporting rod 9, which is not hinged with the pile frame 7, and is arranged in the track 3, then 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 to be in a horizontal state before transportation, then the pile erecting machine for bridge erection is transported to the front end of the bridge erecting machine 1, and.
(2) The utility model discloses a hydraulic system 5, hydraulic cylinder 6's flexible end top pushes away pile frame 7 is started, pile frame 7 rotates around the upper end of fixing base 4, pile frame 7 drives the hinged end rebound of vaulting pole 9, because the length of vaulting pole 9 is certain, then the vaulting pole 9 is provided with the front end motion of gyro wheel 10 along track 3 towards platform 2, until pile frame 7 is located vertical state, the lower extreme of pile frame 7 is contradicted to the front end edge of platform 2, hydraulic cylinder 6's flexible end stops to push away and keeps motionless, then gyro wheel 10 carries out spacing fixed, fix between pile frame 7 and the platform 2, mainly through fixing base 4 on the platform 2 this moment, hydraulic cylinder 6's flexible end, vaulting pole 9 supports pile frame 7.
(3) The steel wire rope 12 is wound and unwound by using the winch, the power hammer 11 is enabled to reach a proper position, the drill rod 16 is installed, in order to accelerate the construction progress, the drill rod 16 can be directly sleeved into the tubular pile 17, the whole body is connected with the power hammer 11, then the steel wire rope 12 is wound and unwound, the tubular pile 17 and the drill rod 16 are integrally lowered into the clamping mechanism 13, the tubular pile 17 is clamped by the clamping mechanism 13, vertical limiting is achieved, and the verticality and stability of the tubular pile 17 are guaranteed;
(4) and the driving of the pile is started by the power hammer 11.
The pile driver for bridging can be installed and used together with the bridge erecting machine 1 to construct the precast tubular pile 17 without occupying other fields, the tubular pile 17 is folded and turned over by utilizing the support rods 9 and the hydraulic system 5 on the platform 2 before and after being transported to a construction site so as to adapt to different working conditions, and the tubular pile 17 is driven into the stratum by adopting a drilling and driving mode through the power hammer 11 and the drill rod 16, so that the convenience and the construction efficiency of the pile foundation in the bridging process are improved.
In another technical solution, as shown in fig. 1 to 3, a crane 14 is disposed at one end of the pile frame 7 where the pulley block 8 is disposed, a rotating seat 15 is connected between the crane 14 and the pile frame 7, and a rotating direction of the rotating seat 15 is perpendicular to a length direction of the pile frame 7.
When the pile frame 7 is turned to be in a vertical state, the crane 14 is positioned at the top of the pile frame 7 and rotates 360 degrees through the rotary seat 15, when the drill pipe 16 and the tubular pile 17 are lifted, the crane 14 is used for lowering the lifting end of the crane 14 in the direction towards the bridge erecting machine 1, then the tubular pile 17 with the drill pipe 16 inserted therein is connected with the lifting end of the crane 14, the crane 14 is rotated 180 degrees, the tubular pile 17 with the drill pipe 16 inserted therein is positioned at the front side of the pile frame 7 and is lowered into the clamping mechanism 13 for clamping and fixing, then the power hammer 11 is driven to move downwards, and the drill pipe 16 and the tubular pile 17 are aligned and connected with the power hammer 11. The tubular piles 17 and the like transported by the bridge girder erection machine 1 are hoisted, rotated in a changed direction and aligned by using the hoisting machine 14, 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 as a large rotary gear, the large rotary gear is fixedly connected with the top of the pile frame through a bearing, the large rotary gear can freely rotate in a plane vertical to the pile frame, an installation plate is fixed on the surface of the large rotary gear, and the crane is fixed on the installation plate.
In another technical scheme, as shown in fig. 1 to 3, a C-shaped hanger is arranged on the crane 14, one end of the C-shaped hanger is connected with the crane 14 through a traction rope, the other end of the C-shaped hanger is connected with a drill rod 16 and/or a pipe pile 17, and the shape of a notch of the C-shaped hanger is consistent with that of the power hammer 11.
Through set up the lifting hook that is C type structure on loop wheel machine 14, utilize loop wheel machine 14 to hoist tubular pile 17, drilling rod 16 and rotate 180 degrees after, 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, transfer tubular pile 17, drilling rod 16 again and get into fixture 13, realized tubular pile 17, drilling rod 16 and power hammer 11, fixture 13 counterpoint fast, can not disturb the removal route of tubular pile 17, drilling rod 16.
In another technical scheme, as shown in fig. 1-3, the rail 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 located at the front side and the rear side of the roller 10 respectively penetrate through 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 downthehole realization in front of and behind gyro wheel 10, it is simple and convenient.
In another technical scheme, as shown in fig. 1-4, the platform 2 includes a bottom plate 19 and frames 20 vertically fixed on the left and right sides 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 frame 20 is outwardly connected with a traveling wheel 18, and the traveling wheel 18 travels on the bridge girder erection machine 1.
Set up frame 20 and connect between platform 2 and bridging machine 1, make things convenient for the removal of platform 2 on bridging machine 1 through setting up walking wheel 18, provide the atress by frame 20 to hydraulic system 5 etc. of installation on platform 2 and support and pass through walking wheel 18 with gravity and transmit for bridging machine 1 simultaneously, when needing to fix platform 2, through on frame 20 and between bridging machine 1 set up if fixing parts such as turnbuckle can, simple to operate.
In another technical solution, as shown in fig. 1-3, a ladder 21 is arranged on the pile frame 7 along the extension direction of the pile frame 7.
The climbing ladder 21 is arranged, so that construction personnel can conveniently observe the construction condition from top to bottom, and the maintenance and installation of the pile foundation and other facility power hammers 11 and the like are facilitated.
In another technical solution, as shown in fig. 1 to 3, a slide rail 22 is disposed on a side surface of the pile frame 7 on a side not hinged to the fixing base 4 along a length direction of the pile frame 7, and the power hammer 11 is slidably connected to the slide rail 22.
Through setting up slide rail 22, make power hammer 11 along slide rail 22 vertical movement, carry on spacingly and guide to the moving direction of power hammer 11, improve the repeatability and the accuracy nature of the position of power hammer 11 pile.
In another technical solution, as shown in fig. 1 to 3, the rails 3 are symmetrically arranged on two sides of the pile frame 7, two brace rods 9 are provided, the upper end of each brace rod 9 is hinged to the pile frame 7, the lower end of each brace rod 9 is provided with the roller 10, and one roller 10 is located in one rail 3.
Through corresponding a pair of track 3, a pair of vaulting pole 9 and a pair of gyro wheel 10 of setting up, support pile frame 7 jointly in the both sides of pile frame 7, improve the stability of supporting after the rotation process of pile frame 7 and reach vertical state.
In another technical solution, as shown in fig. 4 to 6, a pile frame fixing mechanism is further disposed at the front end of the platform 2, and the pile frame fixing mechanism includes:
the pair of rotating shafts 23 are vertically arranged and symmetrically distributed on the edge of the front end of the platform 2, the upper ends of the rotating shafts 23 are rotatably 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;
inferior arc hoops 24 which are symmetrically arranged at the lower ends of the pair of rotating shafts 23 and are respectively connected with the corresponding rotating shafts 23 in a rotating way, the radius of the inferior arc hoops 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 minor arc section 25 is 90 degrees and is positioned at the outer side of the pair of rotating shafts 23, the chord length of the second minor arc section 26 is smaller than the diameter of the pile frame 7, the end part of one of the second minor arc sections 26 which are symmetrically arranged is vertically provided with a plurality of rectangular grooves 27 which penetrate through the side walls of the second minor 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 minor arc section 26 is provided with a convex block 29 corresponding to each rectangular groove 27, and the upper surface and/or the lower surface of each convex block 29 is provided with a hemispherical elastic block 30 corresponding to the hemispherical groove 28;
the connecting rod 31 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 of the connecting rod 31 is hinged with the oppositely arranged connecting rod 31;
a limiting rod 32, the upper end of which is fixed at the bottom of the platform 2 and is located 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;
and the pushing block 33 is connected to the lower end of the pile frame 7 and faces the platform 2, and the length of the pushing block 33 is consistent with the horizontal distance from the limiting rod 32 to the edge of the front end of the platform 2.
When the sizes or positions of the inferior arc hoops 24, the connecting rods 31, the limiting rods 32 and the pushing blocks 33 are arranged, according to the diameter of the pile frame 7, when the pile frame 7 is in a vertical state, the first inferior arc sections 25 of the two inferior 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 inferior arc sections 25, the arc length of the second inferior arc sections 26 cannot interfere the synchronous rotation process of the whole inferior arc hoops 24, when the two first inferior arc sections 25 which are symmetrically arranged can be spliced into a semicircle, the two second inferior arc sections 26 are connected through the pair of connecting rods 31, the horizontal distance between the limiting rods 32 and the front end edge of the platform 2 is set to be slightly smaller than the diameter of the pile frame 7 and is consistent with the length of the pushing blocks 33, so that the pair of connecting rods 31 are always positioned in the circle surrounded by the inferior arc hoops 24, thereby facilitating the repeated pushing of the pushing blocks 33, without disturbing the complete reaching of the pile frame 7 to the vertical position.
When the pile frame 7 is close to reach the vertical state, the pushing block 33 at one side of the pile frame 7 facing the platform 2 starts to contact the hinge point of the connecting rod 31 oppositely arranged between the two second minor arc sections 26 and starts to push the connecting rod 31, the connecting rod 31 drives the minor arc-shaped hoops 24 at the corresponding side to respectively rotate around the corresponding rotating shafts 23 until the hinged positions of the two connecting rods 31 abut against the limiting rod 32 to stop moving, at the moment, the protruding blocks 29 of the first minor arc sections 25 on the two first minor arc sections 25 symmetrically arranged enter the corresponding rectangular grooves 27, the elastic blocks 30 on the protruding blocks 29 enter the hemispherical grooves 28, so that the symmetrically arranged minor arc-shaped hoops 24 are spliced into a semicircle at the front end of the platform 2 to fix and limit the lower end of the pile frame 7, the power hammer 11 is prevented from toppling clockwise as shown in figures 1-3 during pile driving, and the stability of the pile frame 7 is improved, when the pile frame 7 needs to be turned to be horizontal after piling is finished and stored, the limiting fixation of the roller 10 is removed, the pile frame 7 rotates towards the anticlockwise direction shown in fig. 1-3 through the telescopic end of the hydraulic oil cylinder 6, the lower end of the pile frame 7 provides an outward force to the inferior arc-shaped hoop 24 to enable the elastic block 30 to leave the hemispherical groove 28, the pile frame 7 continues to push the inferior arc-shaped hoop 24, the inferior arc-shaped hoop 24 rotates around the rotating shaft 23 to enable the first inferior arc sections 25 which are symmetrically arranged to be away from each other, meanwhile, the second inferior arc sections 26 extrude the corresponding connecting rods 31 to move towards the pile frame 7, the limiting fixation of the pile frame 7 is removed, and when the distance between the first inferior arc sections 25 which are symmetrically arranged is large enough, the pile frame 7 leaves the inferior arc-shaped hoop 24.
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 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 the pile driver for bridge erection and is fixed;
s2, starting the hydraulic system 5 to drive the telescopic end of the hydraulic oil cylinder 6 to push the pile frame 7, enabling the pile frame 7 to rotate around the fixed seat 4, enabling the roller 10 to slide towards the fixed seat 4 along the track 3 until the pile frame 7 is in a vertical state, stopping pushing by the hydraulic oil cylinder 6 and limiting and fixing the roller 10;
s3, the drill rod 16 is sleeved into the tubular pile 17 and integrally lifted by the crane 14, after the tubular pile 17 is in a vertical state, the crane 14 is rotated by the rotating base 15, so that the tubular pile 17 and the drill rod 16 rotate to the foremost end, or,
connecting a drill rod 16 to a power hammer 11 of a pile frame 7, hoisting a tubular pile 17 by a crane 14, rotating the crane 14 by using a rotating seat 15 after the tubular pile 17 reaches a vertical state to rotate the tubular pile 17 to the foremost end, then sleeving the tubular pile 17 outside the drill rod 16,
then, the tubular pile 17 and the drill rod 16 are inserted into the clamping mechanism 13, and the tubular pile 17 is clamped by the clamping mechanism 13;
and S4, driving the pile by using the power hammer 11.
In summary, the pile driver for bridging of the invention comprises a platform, a pile frame, a stay bar, a power hammer, a clamping mechanism and the like, wherein the platform is arranged at the front end of the bridge driver and is matched with the bridge driver for use, the construction of the prefabricated pipe pile is carried out without occupying other places, the pile frame is directly supported by the stay bar, the telescopic end of a hydraulic oil cylinder and a fixed seat on the platform after being positioned in a vertical state, the power hammer and the drill rod can be used for driving the pipe pile into the ground in a drilling and driving mode during the pile driving, the clamping mechanism limits the position of the pipe pile during the pile driving process, the verticality and stability of the pipe pile are ensured, the pile frame can be folded and turned over by the stay bar and a hydraulic system on the platform according to the working condition requirements, the pile driver is convenient and flexible to use, the pile driving work can be completed without additionally putting other equipment in the water or in a sludge environment, in, set up the loop wheel machine on the roating seat, the loop wheel machine can carry out 360 degrees rotations in the horizontal plane behind the pile frame is located vertical state, after transporting the tubular pile through the bridge crane, get the stake to the tubular pile, lift by crane, angle of adjustment, counterpoint with the power hammer, then pile, the construction capacity and the utilization ratio of whole pile driver for the bridge construction have further been improved, realize the mechanized operation of pile foundation construction overall process, on-the-spot artificial input has been reduced, the occupation of construction site has been reduced, little to existing traffic influence, and good economic benefits is realized.
While the embodiments of the invention have been disclosed above, it is not limited to the applications set forth in the specification and illustrated in the embodiments, which are fully applicable to various fields of endeavor with which the invention may be practiced, and further modifications may readily be effected by those skilled in the art, it is therefore intended that the invention not be limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (10)
1. Pile driver for bridge, its characterized in that includes:
the platform is fixedly connected to the front end of the bridge girder erection machine, a track is horizontally arranged on the platform in the direction 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 oil cylinder which are respectively 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 support rod is hinged with the pile frame, the other end of the support rod is connected with a roller, and the roller is connected with the track in a sliding manner;
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 oil cylinder, and the hinging positions are sequentially arranged on the pile frame along the direction towards 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 on one side, opposite to the fixed seat, of the pile frame.
2. The pile driver for bridge formation as claimed in claim 1, wherein the pile frame is provided with a crane at an end thereof where the pulley block is provided, and a rotary base is connected between the crane and the pile frame, and a rotation direction of the rotary base is perpendicular to a length direction of the pile frame.
3. Pile driver for bridging according to claim 2, wherein the crane is provided with a C-shaped spreader, one end of the C-shaped spreader is connected with the crane through a hauling cable, the other end of the C-shaped spreader is connected with a drill pipe and/or a pipe pile, and the shape of the notch of the C-shaped spreader is consistent with the shape of the power hammer.
4. The bridge pile driver as claimed in claim 1, wherein the rail is a groove structure, two side walls of the groove structure are symmetrically provided with limiting holes, and two pairs of limiting holes adjacent to the rollers and respectively located at the front and rear sides of the rollers respectively penetrate a pin shaft.
5. The bridge erecting pile driver as recited in claim 1, wherein said platform comprises a base plate and a frame vertically fixed on the left and right sides of the base plate, said hydraulic system, hydraulic cylinder, winch and fixing base are all mounted on the base plate, the upper end of the frame is connected with a walking wheel, and the walking wheel walks on said bridge erecting machine.
6. The pile driver for bridge erection as claimed in claim 1, wherein the pile frame is provided with a ladder stand along the extending direction of the pile frame.
7. The pile driver for bridge formation according to claim 1, wherein the pile frame is provided with a slide rail on a side surface on a side not hinged to the fixing base in a length direction of the pile frame, and the power hammer is slidably connected to the slide rail.
8. The bridge pile driver as claimed in claim 1, wherein the rails are symmetrically disposed on both sides of the pile frame, the number of the braces is two, an upper end of each brace is hinged to the pile frame, a lower end of each brace is provided with the roller, and one of the rollers is disposed in one of the rails.
9. Pile driver for bridging according to claim 1, characterized in that the front end of the platform is further provided with a pile frame fixing mechanism, the pile frame fixing mechanism comprising:
the pair of rotating shafts are vertically arranged and symmetrically distributed on the edge of the front end of the platform, the upper ends of the rotating shafts are rotatably 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;
inferior arc hoops are symmetrically arranged at the lower ends of the pair of rotating shafts and are respectively connected with the corresponding rotating shafts in a rotating way, the radius of each inferior arc hoop is equal to the diameter of the pile frame, each inferior arc hoop 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 the first minor arc section is 90 degrees and is positioned at the outer sides of the pair of rotating shafts, the chord length of the second minor arc section is smaller than the diameter of the pile frame, the end part of one of the second minor arc sections which are symmetrically arranged is vertically provided with a plurality of rectangular grooves which penetrate through the side wall of the second minor 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 minor arc section is provided with a convex block corresponding to each rectangular groove, and the upper surface and/or the lower surface of each 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 oppositely arranged connecting rod;
the upper end of the limiting rod is fixed at the bottom of the platform and is positioned on the central axis of the rotating shafts, and the horizontal distance between the limiting rod and the edge of the front end of the platform is smaller than the diameter of the pile frame;
and 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 edge of the front end of the platform.
10. The use method of the pile driver for the bridge is characterized by comprising the following steps:
s1, the pile frame is in a horizontal state before transportation, and then the whole bridge is transported to the front end of the bridge girder erection machine by the pile driver and fixed;
s2, starting a 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 rail until the pile frame is in a vertical state, stopping pushing by the hydraulic oil cylinder and limiting and fixing the roller;
s3, the drill rod is sleeved into the tubular pile and integrally lifted by the crane, after the tubular pile is in a vertical state, the crane is rotated by the rotating base, so that the tubular pile and the drill rod rotate to the foremost end, or,
connecting a drill rod to a power hammer of a pile frame, hoisting the tubular pile by a crane, rotating the crane by using a rotating seat after the tubular pile is in a vertical state to rotate the tubular pile to the foremost end, then sleeving the tubular pile outside the drill rod,
then the tubular pile and the drill rod are inserted into the clamping mechanism, and the tubular pile is clamped by the clamping mechanism;
and S4, driving the pile by using the power hammer.
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| CN202011333147.4A CN112281681B (en) | 2020-11-24 | 2020-11-24 | Pile driver for bridge girder and using method thereof |
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| CN202011333147.4A CN112281681B (en) | 2020-11-24 | 2020-11-24 | Pile driver for bridge girder and using method thereof |
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Cited By (1)
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| CN113026559A (en) * | 2021-02-05 | 2021-06-25 | 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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| CN112281681B (en) | 2024-06-25 |
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