CN211113627U

CN211113627U - Unsettled self-supporting formula pile driver

Info

Publication number: CN211113627U
Application number: CN201921824290.6U
Authority: CN
Inventors: 冯欣华; 庞国达; 欧天全; 杨树金
Original assignee: Guangdong Liyuan Hydraulic Machinery Co ltd
Current assignee: Guangdong Liyuan Hydraulic Machinery Co ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-07-28
Anticipated expiration: 2029-10-28

Abstract

The utility model discloses a unsettled self-supporting formula pile driver, including frame bridge construction, pile mechanism, folding mechanism includes the stand supporting seat, becomes width of cloth hoist engine, first sliding support, second sliding support, support frame, becomes width of cloth telescopic cylinder, becomes width of cloth assembly pulley, and frame bridge construction includes first girder, second girder, front end support tie beam, and pile mechanism includes the stand pylon, becomes width of cloth guide rail, rotates the support, and the stand pylon supports tie beam through rotating the support and front end and rotates to be connected, and frame bridge construction passes through folding mechanism drive pile mechanism and rotates to become width of cloth. The utility model provides a unsettled self-supporting formula pile driver can utilize the bridge girder erection mechanism to carry out unsettled pile driving to heavy overlength precast pile, need not to provide the support position at the front end of bridge girder erection mechanism, and this pile driver adopts the hoist engine design, has promoted its stroke and load by a wide margin, satisfies the pile foundation construction requirement in engineering geological conditions complicacy or in river and sea lake, practices thrift construction cost, improves the engineering progress.

Description

Unsettled self-supporting formula pile driver

Technical Field

The utility model relates to a pile foundation construction field especially relates to a unsettled self-supporting formula pile driver.

Background

The existing upper structure construction of highways, railways, pipelines and other high bridges increasingly adopts a method of prefabricating in factories and then transporting to a field for assembly, and a bridge erecting machine is equipment for driving on bridge tracks and placing prefabricated beam pieces on prefabricated piers. If the engineering geological conditions are complex or in rivers, seas and lakes, the pile foundation construction difficulty is large, the engineering progress is slow, and the construction cost is high by adopting additional equipment such as a piling ship, a temporary trestle and the like.

In the prior art, the Chinese patent with application number 201811007101.6 discloses a piling method and special equipment using a bridge girder erection machine, and the invention uses the bridge girder erection machine and the pile driver for construction; the front and back telescopic arms at the front end of the bridge girder erection machine are provided with longitudinal supporting frames which can longitudinally stretch out and draw back and extend to the ground, and the bridge girder erection machine is provided with at least one of a hole guiding machine, a stirrer and a pile driver which can move back and forth along a slide rail on the bridge girder erection machine. The construction method of the invention has the defects that a stable supporting position is required to be continuously provided at the front end of the bridge girder erection machine for supporting the longitudinal supporting frame extending to the ground, and the construction method cannot be suspended for operation, particularly in construction in rivers, seas and lakes, and the front end of the bridge girder erection machine cannot guarantee to provide the stable supporting position at all, so that the construction is difficult.

Meanwhile, most of power units such as the telescopic arm of the existing suspension pile driver adopt hydraulic equipment, the stroke and the load of the power units are greatly limited, and the pile driving operation of heavy and super-long (more than 100 meters) precast piles cannot be completed.

Therefore, it is highly desirable to develop a suspension piling device capable of completing a heavy ultra-long precast pile.

Disclosure of Invention

An object of the utility model is to foretell not enough, provide a unsettled self-supporting formula pile driver, can utilize bridging mechanism to carry out unsettled pile driving to heavy overlength precast pile, need not to provide the support position at bridging mechanism's front end, satisfy the pile foundation construction requirement in engineering geological conditions is complicated or is in rivers and seas lake, practice thrift construction cost, improve the engineering progress. The pile driver adopts the design of the winch, greatly improves the stroke and the load of the pile driver, utilizes the folding mechanism to enable the pile driving mechanism to rotate along the amplitude of the front end of the bridge erecting mechanism, realizes the vertical suspension pile driving of the pile driving mechanism at the front end of the bridge erecting mechanism, is convenient to operate, and improves the working efficiency.

The technical scheme is as follows:

a suspended self-supporting pile driver comprises a bridge erecting mechanism, a pile driving mechanism and a folding mechanism, wherein the folding mechanism comprises an upright post supporting seat, an amplitude-variable winch, a first sliding support, a second sliding support, a supporting frame, an amplitude-variable telescopic oil cylinder and an amplitude-variable pulley block; the pile driving mechanism comprises an upright tower, an amplitude variation guide rail and a rotating support, wherein the amplitude variation guide rail and the rotating support are respectively arranged on the rear side surface of the upright tower, and the amplitude variation guide rail is positioned above the rotating support; the upright post supporting seat and the variable amplitude winch are respectively arranged above the middle part of the front end supporting connecting beam, and the upright post tower is rotationally connected with the upright post supporting seat through the rotating support; the first sliding support and the second sliding support are respectively connected with the amplitude variation guide rail in a sliding manner, the first sliding support is positioned above the second sliding support, the upper end of the support frame is hinged with the first sliding support, and two sides of the lower end of the support frame are respectively hinged with the first main beam and the second main beam; two ends of the variable amplitude telescopic oil cylinder are respectively hinged with the first sliding support and the second sliding support; the amplitude-variable pulley block comprises a first pulley and a second pulley, the first pulley is hinged with the first sliding support, the second pulley is hinged with the upright post supporting seat, the amplitude-variable winch is provided with an amplitude-variable steel wire rope, and the amplitude-variable steel wire rope is wound on the amplitude-variable pulley block.

The piling mechanism further comprises a variable-amplitude oil cylinder fixing seat and a movable bolt, the variable-amplitude oil cylinder fixing seat is installed at the lower end of the variable-amplitude guide rail, the variable-amplitude telescopic oil cylinder comprises a piston rod and a cylinder barrel, the piston rod is hinged to the first sliding support, the cylinder barrel is hinged to the second sliding support, and the second sliding support is rotatably connected with the variable-amplitude oil cylinder fixing seat through the movable bolt.

The pile driving mechanism further comprises a lifting winch, a lifting steel wire rope, a lifting pulley block, a pile driving hammer and a front guide rail, wherein the lifting winch and the lifting pulley block are respectively installed at the middle part and the top end of the upright tower, the front guide rail is installed on the front side surface of the upright tower, the pile driving hammer is in sliding connection with the front guide rail, one end of the lifting steel wire rope is connected with the lifting winch, and the other end of the lifting steel wire rope is connected with the pile driving hammer through the lifting pulley block.

The pile driving mechanism further comprises a first clamping arm, a second clamping arm, a first clamping oil cylinder, a second clamping oil cylinder, a first clamping support and a second clamping support, wherein the two sides of the upright tower frame comprise a first side surface and a second side surface, the first clamping support and the second clamping support are respectively arranged at the lower ends of the middle parts of the first side surface and the second side surface, the first clamping support and the second clamping support are respectively positioned at the two opposite sides of the main column tower frame, one end of the first clamping arm and one end of the first clamping oil cylinder are respectively hinged with the first clamping support, the first clamping oil cylinder is positioned at the rear part of the first clamping arm, the other end of the first clamping oil cylinder is hinged with the middle part of the first clamping arm, one end of the second clamping arm and one end of the second clamping oil cylinder are respectively hinged with the second clamping support, the second clamping oil cylinder is positioned at the rear part of the second clamping arm, the other end of the second clamping oil cylinder is hinged with the middle part of the second clamping arm.

The support frame is triangle-shaped truss structure, the support frame includes first montant, second montant, the upper end of first montant, second montant with first sliding support is articulated, the lower extreme of first montant, second montant respectively with first girder, second girder are articulated.

Folding mechanism still includes first bottom mount pad, second bottom mount pad, first bottom mount pad, second bottom mount pad are installed respectively on the bottom surface of first girder, second girder, the lower extreme of first montant, second montant respectively with first bottom mount pad, second bottom mount pad are articulated.

The bridge erecting mechanism further comprises a stay cable mechanism, the stay cable mechanism comprises a stay cross beam, a first stay cable, a second stay cable, a first front stay cable, a second front stay cable, a first rear stay cable and a second rear stay cable, the lower ends of the first stay cable and the second stay cable are respectively connected with the middle parts of the first main beam and the second main beam, the two ends of the stay cross beam are respectively connected with the upper ends of the first stay cable and the second stay cable, one ends of the first front stay cable and the first rear stay cable are connected with the upper end of the first stay cable, the other ends of the first front stay cable and the first rear stay cable are respectively connected with the front end and the rear end of the first main beam, one ends of the second front stay cable and the second rear stay cable are connected with the upper end of the second stay cable, the other ends of the second front-end stay cable and the second rear-end stay cable are respectively connected with the front end and the rear end of the second main beam.

The bridging mechanism further comprises a first hoisting crown block and a second hoisting crown block, and two ends of the first hoisting crown block and the second hoisting crown block are respectively connected with the top surfaces of the first main beam and the second main beam in a sliding manner.

The bridge erecting mechanism further comprises a first front middle supporting leg, a second front middle supporting leg, a first rear middle supporting leg and a second rear middle supporting leg, the upper ends of the first front middle supporting leg and the second front middle supporting leg are respectively in sliding connection with the bottom surfaces of the front ends of the middle portions of the first main beam and the second main beam, and the upper ends of the first rear middle supporting leg and the second rear middle supporting leg are respectively in sliding connection with the bottom surfaces of the rear ends of the middle portions of the first main beam and the second main beam.

The bridge erecting mechanism further comprises a front supporting leg, a first rear supporting leg and a second rear supporting leg, wherein two ends of the top surface of the front supporting leg are respectively in sliding connection with the bottom surfaces of the front ends of the first main beam and the second main beam, and the upper ends of the first rear supporting leg and the second rear supporting leg are respectively connected with the bottom surfaces of the rear ends of the first main beam and the second main beam.

It should be noted that:

the foregoing references to "first and second …" do not denote any particular quantity or order, but rather are used to distinguish one name from another.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in fig. 1 of the drawings, the term "front" refers to the suspended end of the bridging mechanism, and the term "rear" is opposite to the term "front" merely for convenience of description and simplification of the description, and does not indicate or imply that the equipment or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

The front side of the upright tower refers to the front side of the upright tower when erected.

The rear side of the upright tower refers to the rear side of the upright tower when erected.

The advantages or principles of the invention are explained below:

1. the utility model provides a unsettled self-supporting formula pile driver can utilize the bridge girder erection mechanism to carry out unsettled pile driving to heavy overlength precast pile, need not to provide the support position at the front end of bridge girder erection mechanism, satisfies the pile foundation construction requirement in engineering geological conditions is complicated or is in rivers and seas lake, practices thrift construction cost, improves the engineering progress. This pile driver adopts the hoist engine design, has promoted its stroke and load by a wide margin to utilize folding mechanism to become width of cloth rotation with pile mechanism along the front end of bridging mechanism, realize pile mechanism at the vertical unsettled pile of the front end of bridging mechanism, convenient operation improves work efficiency.

2. The utility model provides a unsettled self-supporting pile driver, including bridging mechanism, pile mechanism, folding mechanism, pile mechanism rotates with the front end of bridging mechanism to be connected, bridging mechanism drives pile mechanism through folding mechanism and rotates the amplitude of fluctuation, folding mechanism includes stand supporting seat, amplitude of fluctuation hoist engine, first sliding support, second sliding support, support frame, amplitude of fluctuation telescopic cylinder, amplitude of fluctuation assembly pulley, during the use, first girder, the second girder of bridging mechanism stretch forward towards the direction of the pile foundation of waiting to be under construction earlier, make the support coupling beam of installing at bridging mechanism front end unsettled in the top of the pile foundation of waiting to be under construction; then horizontally and fixedly mounting the precast pile to be constructed on the front side surface of the upright tower of the pile driving mechanism, starting an amplitude-variable winch, winding a rope, drawing the distance between the first pulley and the second pulley, correspondingly changing the size relation of a triangle among the support frame, the bridge erecting mechanism and the upright tower, and realizing the initial amplitude variation of the upright tower; when the vertical column tower is changed into a preset variable amplitude angle by adopting a variable amplitude winch, wherein the preset variable amplitude angle is preferably 70-80 degrees, and the variable amplitude angle of the vertical column tower can be dynamically monitored by an inclination angle sensor; then the amplitude-variable telescopic oil cylinder extends out completely, the amplitude-variable telescopic oil cylinder is fixed to be positioned at one end of the second sliding support, the amplitude is continuously changed by adopting the amplitude-variable telescopic oil cylinder, the amplitude-variable telescopic oil cylinder is retracted, the upright tower is lifted to a preset angle corresponding to the upright tower and the pile foundation to be constructed, and then the pile driving mechanism drives the precast pile to be constructed into the preset position of the pile foundation to be constructed; this unsettled self-supporting formula pile driver utilizes folding mechanism to change width of cloth rotation with pile mechanism along the front end of bridging mechanism, realizes that pile mechanism changes width of cloth rotation at the front end of bridging mechanism to make pile mechanism at the vertical unsettled pile of the front end of bridging mechanism, convenient operation need not to provide the support position at the front end of bridging mechanism, satisfies the pile foundation construction requirement complicated or in the river and sea lake in engineering geological conditions, practices thrift construction cost, improves the engineering progress.

3. The utility model discloses a pile mechanism is still including becoming width of cloth hydro-cylinder fixing base, activity bolt, becomes width of cloth flexible hydro-cylinder and includes piston rod, cylinder, becomes width of cloth flexible hydro-cylinder when becoming the predetermined width of cloth angle when the stand pylon becomes, becomes width of cloth flexible hydro-cylinder and all stretches out, installs the cylinder on second sliding support and rotates through activity bolt and the width of cloth hydro-cylinder fixing base to be connected, and is preferred, and activity bolt adopts electronic bolt or hydraulic cylinder bolt.

4. The utility model discloses a pile mechanism is still including promoting hoist engine, hoisting wire rope, lifting pulley group, pile hammer, anterior guide rail, and on the pile hammer was used for will treating the construction precast pile to drive into the preset position of treating the construction pile foundation, anterior guide rail was used for providing the slip track for the pile hammer, and promotion hoist engine, hoisting wire rope combine with the lifting pulley group to be used for carrying to draw and rise the pile hammer.

5. The utility model discloses a pile mechanism still includes first centre gripping arm, second centre gripping arm, first centre gripping hydro-cylinder, second centre gripping hydro-cylinder, first centre gripping support, second centre gripping support, when treating that the precast pile of being under construction places on the leading flank of stand pylon, starts first centre gripping hydro-cylinder, second centre gripping hydro-cylinder, first centre gripping hydro-cylinder, the extension of second centre gripping hydro-cylinder, the tight precast pile of waiting to be under construction of first centre gripping arm of drive, the tight fixing of leading flank clamp of second centre gripping arm, the precast pile of waiting to be under construction will be pressed from both sides with the stand pylon.

6. The utility model discloses a support frame is triangle-shaped truss structure, improves the structural stability of support frame.

7. The utility model discloses a lower extreme of the first montant of support frame, second montant is articulated through first bottom mount pad, second bottom installation and the first girder, the second girder of bridging mechanism respectively, improves bridging mechanism to pile mechanism's support stability.

8. The utility model discloses a frame bridge crane constructs still includes oblique pull cable mechanism, oblique pull cable mechanism includes oblique pull beam, first oblique pull support column, the oblique pull support column of second, first front end suspension cable, the second front end suspension cable, first rear end suspension cable, the second rear end suspension cable, oblique pull beam's both ends respectively with first oblique pull support column, the upper end of second oblique pull support column is connected, form a portal frame, install this portal frame at first girder, the middle part of second girder, recycle first front end suspension cable, the second front end suspension cable, first rear end suspension cable, the second rear end suspension cable is with first girder, the both ends suspension cantilever of second girder, improve first girder, the overall stability of second girder, improve the unsettled pile driving's of mechanism security.

9. The utility model discloses a bridging mechanism still includes first jack-up overhead traveling crane, second jack-up overhead traveling crane, first jack-up overhead traveling crane, second jack-up overhead traveling crane are used for lifting by crane the installation and wait to be under construction precast pile and follow-up beam slab installation etc., can also be at pile driving mechanism pile in-process, move first jack-up overhead traveling crane, second jack-up overhead traveling crane respectively to the rear end of first girder, second girder, increase the counter weight of first girder, second girder rear end, improve the unsettled stability of pile driving mechanism.

10. The utility model discloses a well landing leg in landing leg, first back well landing leg, second back before the bridge girder erection mechanism still includes first preceding well landing leg, second, and landing leg provides the lower extreme for first girder, second girder respectively in landing leg, first back well landing leg, the second back in landing leg before first preceding well landing leg, second and supports and make things convenient for bridge girder erection mechanism to remove.

11. The bridge erecting mechanism of the bridge erecting machine of the utility model also comprises a front support leg, a first rear support leg and a second rear support leg, wherein the first rear support leg and the second rear support leg provide a limiting support for the rear ends of the first girder and the second girder, and the rear ends of the first girder and the second girder are prevented from sinking too heavy to cause the front ends of the first girder and the second girder to warp; after the construction of the bearing platform of the whole pile foundations of the same row of pile foundations to be constructed and the pier is completed, the front support legs provide front end support for the first main beam and the second main beam, the span plate is convenient to construct and install, and after the span plate is installed, the next row of pile foundations can be hung for piling.

Drawings

Fig. 1 is a schematic view of the whole three-dimensional structure of a suspended self-supporting pile driver according to an embodiment of the present invention.

Fig. 2 is a schematic view of the whole three-dimensional structure of the suspended self-supporting pile driver according to the embodiment of the present invention.

Figure 3 is a rear view of a self-supporting, suspended pile driver according to an embodiment of the invention.

Fig. 4 is a top view of a self-supporting, suspended pile driver according to an embodiment of the invention.

Fig. 5 is a side view of the amplitude state of the suspended self-supporting pile driver of the embodiment of the invention.

Figure 6 is a side view of a self-supporting, suspended pile driver according to an embodiment of the invention.

Fig. 7 is a rear view of a suspended self-supporting pile driver crane crown block of an embodiment of the present invention.

Fig. 8 is a rear view of the stay cable mechanism of the suspended self-supporting pile driver of the embodiment of the present invention.

Fig. 9 is a rear view of the front center leg of the self-supporting pile driver in suspension according to an embodiment of the present invention.

Figure 10 is a rear view of the rear center leg of a self-supporting, suspended pile driver according to an embodiment of the invention.

Figure 11 is a rear view of the rear leg of a self-supporting, suspended pile driver according to an embodiment of the invention.

Figure 12 is a rear view of the front leg of a self-supporting, suspended pile driver according to an embodiment of the invention.

Description of reference numerals:

10. a bridging mechanism 11, a first main beam, 12, a second main beam, 13, a front end support connecting beam, 14, a stay cable mechanism 141, a stay cross beam, 142, a first stay support column, 143, a second stay support column, 144, a first front end stay cable, 145, a first rear end stay cable, 151, a first crane, 152, a second crane, 161, a first front middle support leg, 162, a second front middle support leg, 171, a first rear middle support leg, 172, a second rear middle support leg, 18, a front support leg, 191, a first rear support leg, 192, a second rear support leg, 20, a pile driving mechanism, 21, a column tower, 22, a variable amplitude guide rail, 23, a rotating support, 24, a variable amplitude cylinder fixing seat, 25, a movable bolt, 26, a lifting steel wire rope, 27, a lifting pulley block, 28, a pile driving hammer, 29, a front guide rail, 30, a first clamping arm, 31, a second clamping arm, 32, a first clamping cylinder, 33. the prefabricated pile construction device comprises a second clamping oil cylinder, 34, a first clamping support, 35, a second clamping support, 40, a folding mechanism, 41, an upright post support seat, 42, a variable amplitude winch, 421, a variable amplitude steel wire rope, 43, a first sliding support, 44, a second sliding support, 45, a support frame, 451, a first vertical rod, 452, a second vertical rod, 46, a variable amplitude telescopic oil cylinder, 47, a variable amplitude pulley block, 471, a first pulley, 472, a second pulley, 51, a first bottom mounting seat, 52, a second bottom mounting seat, 60 and a prefabricated pile to be constructed.

Detailed Description

The following describes embodiments of the present invention in detail.

Referring to fig. 1 to 12, the present invention provides a suspension self-supporting pile driver, including a bridging mechanism 10, a pile driving mechanism 20, and a folding mechanism 40, where the folding mechanism 40 includes a column support 41, an amplitude winch 42, a first sliding support 43, a second sliding support 44, a support frame 45, an amplitude telescopic cylinder 46, and an amplitude pulley block 47, the bridging mechanism 10 includes a first main beam 11, a second main beam 12, and a front end support connecting beam 13, and two ends of the front end support connecting beam 13 are connected to front ends of the first main beam 11 and the second main beam 12 respectively; the pile driving mechanism 20 comprises a vertical column tower 21, a variable amplitude guide rail 22 and a rotating support 23, wherein the variable amplitude guide rail 22 and the rotating support 23 are respectively arranged on the rear side surface of the vertical column tower 21, and the variable amplitude guide rail 22 is positioned above the rotating support 23; the upright post supporting seat 41 and the variable amplitude winch 42 are respectively arranged above the middle part of the front end supporting connecting beam 13, and the upright post tower 21 is rotationally connected with the upright post supporting seat 41 through the rotating support 23; the first sliding support 43 and the second sliding support 44 are respectively connected with the amplitude variation guide rail 22 in a sliding manner, the first sliding support 43 is positioned above the second sliding support 44, the upper end of the support frame 45 is hinged with the first sliding support 43, and two sides of the lower end of the support frame 45 are respectively hinged with the first main beam 11 and the second main beam 12; two ends of the amplitude-variable telescopic oil cylinder 46 are respectively hinged with the first sliding support 43 and the second sliding support 44; the luffing pulley block 47 comprises a first pulley 471 and a second pulley 472, the first pulley 471 is hinged with the first sliding support seat 43, the second pulley 472 is hinged with the upright post support seat 41, the luffing winch 42 is provided with a luffing steel wire rope 421, and the luffing steel wire rope 421 is wound on the luffing pulley block 47.

The pile driving mechanism 20 is rotatably connected with the front end of the bridge erecting mechanism 10, the bridge erecting mechanism 10 drives the pile driving mechanism 20 to rotate and change amplitude through the folding mechanism 40, and when the bridge erecting mechanism is used, the first main beam 11 and the second main beam 12 of the bridge erecting mechanism 10 extend forwards in the direction of a pile foundation to be constructed, so that a supporting connecting beam arranged at the front end of the bridge erecting mechanism 10 is suspended above the pile foundation to be constructed; then, horizontally and fixedly installing the precast pile 60 to be constructed on the front side surface of the upright tower 21 of the pile driving mechanism 20, starting the amplitude-variable winch 42, retracting the rope, pulling the distance between the first pulley 471 and the second pulley 472, and correspondingly changing the size relationship of the triangle among the support frame 45, the bridge erecting mechanism 10 and the upright tower 21 to realize the initial amplitude variation of the upright tower 21; when the amplitude-variable winch 42 is adopted to amplitude the upright tower frame 21 to a preset amplitude-variable angle, wherein the preset amplitude-variable angle is 70-80 degrees, preferably 75 degrees, and the amplitude-variable angle of the upright tower frame 21 can be dynamically monitored through an inclination angle sensor; then, the amplitude-variable telescopic oil cylinder 46 extends completely, the amplitude-variable telescopic oil cylinder 46 is fixed to be positioned at one end of the second sliding support 44, amplitude is continuously changed by adopting the amplitude-variable telescopic oil cylinder 46, the amplitude-variable telescopic oil cylinder 46 retracts, the upright tower 21 is lifted to a preset angle corresponding to the upright tower 21 and a pile foundation to be constructed, and then the precast pile 60 to be constructed is driven into a preset position of the pile foundation to be constructed by the pile driving mechanism 20; this unsettled self-supporting formula pile driver utilizes folding mechanism 40 to become width of cloth rotation with pile mechanism 20 along the front end of bridging mechanism 10, realizes that pile mechanism 20 becomes width of cloth rotation at the front end of bridging mechanism 10, thereby make pile mechanism 20 at the vertical unsettled pile driving of the front end of bridging mechanism 10, and convenient operation need not to provide the support position at the front end of bridging mechanism 10, satisfies the pile foundation construction requirement complicated or in rivers and lakes at engineering geological conditions, practices thrift construction cost, improves the engineering progress.

The piling mechanism 20 further comprises a variable amplitude oil cylinder fixing seat 24, a movable bolt 25, a lifting winch, a lifting steel wire rope 26, a lifting pulley block 27, a piling hammer 28, a front guide rail 29, a first clamping arm 30, a second clamping arm 31, a first clamping oil cylinder 32, a second clamping oil cylinder 33, a first clamping support 34 and a second clamping support 35, the variable amplitude oil cylinder fixing seat 24 is installed at the lower end of the variable amplitude guide rail 22, the variable amplitude telescopic oil cylinder 46 comprises a piston rod and a cylinder barrel, the piston rod is hinged to a first sliding support 43, the cylinder barrel is hinged to a second sliding support 44, and the second sliding support 44 is rotatably connected with the variable amplitude oil cylinder fixing seat 24 through the movable bolt 25. When the vertical column tower 21 becomes a preset amplitude angle, the amplitude-variable telescopic oil cylinder 46 extends out completely, the cylinder barrel arranged on the second sliding support 44 is rotatably connected with the amplitude-variable oil cylinder fixing seat 24 through a movable bolt 25, and preferably, the movable bolt 25 adopts an electric bolt or a hydraulic oil cylinder bolt.

The lifting winch and the lifting pulley block 27 are respectively arranged on the middle part and the top end of the upright tower frame 21, the front guide rail 29 is arranged on the front side surface of the upright tower frame 21, the pile driving hammer 28 is connected with the front guide rail 29 in a sliding manner, one end of the lifting steel wire rope 26 is connected with the lifting winch, and the other end of the lifting steel wire rope 26 is connected with the pile driving hammer 28 through the lifting pulley block 27. The pile driving hammer 28 is used for driving the precast pile 60 to be constructed into a preset position of the pile foundation to be constructed, the front guide rail 29 is used for providing a sliding track for the pile driving hammer 28, and the lifting winch, the lifting steel wire rope 26 and the lifting pulley block 27 are combined for lifting and lifting the pile driving hammer 28.

The two sides of the upright tower 21 include a first side surface and a second side surface, a first clamping support 34 and a second clamping support 35 are respectively installed on the lower end of the middle portion of the first side surface and the second side surface, the first clamping support 34 and the second clamping support 35 are respectively located on two opposite sides of the main column tower, one end of a first clamping arm 30 and one end of a first clamping oil cylinder 32 are respectively hinged with the first clamping support 34, the first clamping oil cylinder 32 is located behind the first clamping arm 30, the other end of the first clamping oil cylinder 32 is hinged with the middle portion of the first clamping arm 30, one end of a second clamping arm 31 and one end of a second clamping oil cylinder 33 are respectively hinged with the second clamping support 35, the second clamping oil cylinder 33 is located behind the second clamping arm 31, and the other end of the second clamping oil cylinder 33 is hinged with the middle portion of the second clamping arm 31. When the precast pile 60 to be constructed is placed on the front side surface of the upright tower 21, the first clamping cylinder 32 and the second clamping cylinder 33 are started, the first clamping cylinder 32 and the second clamping cylinder 33 extend, the first clamping arm 30 and the second clamping arm 31 are driven to clamp the precast pile 60 to be constructed, and the precast pile 60 to be constructed and the front side surface of the upright tower 21 are clamped and fixed.

The supporting frame 45 is a triangular truss structure, the supporting frame 45 includes a first vertical rod 451 and a second vertical rod 452, the upper ends of the first vertical rod 451 and the second vertical rod 452 are hinged to the first sliding support 43, and the lower ends of the first vertical rod 451 and the second vertical rod 452 are hinged to the first main beam 11 and the second main beam 12 respectively. The structural stability of the support frame 45 is improved.

The folding mechanism 40 further includes a first bottom mounting seat 51 and a second bottom mounting seat 52, the first bottom mounting seat 51 and the second bottom mounting seat 52 are respectively mounted on the bottom surfaces of the first main beam 11 and the second main beam 12, and the lower ends of the first vertical bar 451 and the second vertical bar 452 are respectively hinged to the first bottom mounting seat 51 and the second bottom mounting seat 52. The lower ends of the first vertical rod 451 and the second vertical rod 452 of the support frame 45 are respectively hinged to the first main beam 11 and the second main beam 12 of the bridge erecting mechanism 10 through the first bottom mounting seat 51 and the second bottom mounting seat, so that the support stability of the bridge erecting mechanism 10 to the piling mechanism 20 is improved.

The bridging mechanism 10 further includes a stay cable mechanism 14, a first crane 151, a second crane 152, a first front middle leg 161, a second front middle leg 162, a first rear middle leg 171, a second rear middle leg 172, a front leg 18, a first rear leg 191, and a second rear leg 192, the stay cable mechanism 14 includes a stay beam 141, a first stay support 142, a second stay support 143, a first front end stay cable 144, a second front end stay cable, a first rear end stay cable 145, and a second rear end stay cable, lower ends of the first stay beam 142 and the second stay support 143 are connected to middle portions of the first girder 11 and the second girder, two ends of the stay beam 141 are connected to upper ends of the first stay support 142 and the second stay support 143, one ends of the first front end stay cable 144 and the first rear end stay cable 145 are connected to an upper end of the first stay support 142, and the first front end stay cable 144 are connected to an upper end of the second stay cable 142, The other end of the first rear stay cable 145 is connected to the front end and the rear end of the first main beam 11, one end of the second front stay cable and one end of the second rear stay cable are connected to the upper end of the second stay support 143, and the other end of the second front stay cable and the other end of the second rear stay cable are connected to the front end and the rear end of the second main beam 12. Preferably, the first front-end stay cable 144, the second front-end stay cable, the first rear-end stay cable 145 and the second rear-end stay cable are respectively provided in plurality, two ends of the stay-cable cross beam 141 are respectively connected with the upper ends of the first stay-cable support column 142 and the second stay-cable support column 143 to form a portal frame, the portal frame is installed in the middle of the first main beam 11 and the second main beam 12, and the first front-end stay cable 144, the second front-end stay cable, the first rear-end stay cable 145 and the second rear-end stay cable are used for suspending the two ends of the first main beam 11 and the second main beam 12 in a stay manner, so that the overall stability of the first main beam 11 and the second main beam 12 is improved, and the safety of the piling mechanism 20 in a suspension manner is improved.

Two ends of the first hoisting crown block 151 and the second hoisting crown block 152 are respectively connected with the top surfaces of the first main beam 11 and the second main beam 12 in a sliding manner. First jack-up overhead traveling crane 151, second jack-up overhead traveling crane 152 are used for lifting by crane the installation precast pile 60 of treating to be under construction and follow-up beam slab installation etc. can also be at pile driving mechanism 20 pile in-process, move first jack-up overhead traveling crane 151, second jack-up overhead traveling crane 152 to the rear end of first girder 11, second girder 12 respectively, increase the counter weight of first girder 11, second girder 12 rear end, improve the unsettled stability of pile driving mechanism 20.

The upper ends of the first front middle support leg 161 and the second front middle support leg 162 are slidably connected to the bottom surfaces of the front ends of the middle portions of the first main beam 11 and the second main beam 12, respectively, and the upper ends of the first rear middle support leg 171 and the second rear middle support leg 172 are slidably connected to the bottom surfaces of the rear ends of the middle portions of the first main beam 11 and the second main beam 12, respectively. The first front middle support leg 161, the second front middle support leg 162, the first rear middle support leg 171 and the second rear middle support leg 172 respectively provide lower end support for the first main beam 11 and the second main beam 12 and facilitate movement of the bridge erecting mechanism 10.

The two ends of the top surface of the front leg 18 are respectively connected with the bottom surfaces of the front ends of the first main beam 11 and the second main beam 12 in a sliding manner, and the upper ends of the first rear leg 191 and the second rear leg 192 are respectively connected with the bottom surfaces of the rear ends of the first main beam 11 and the second main beam 12. The first rear support leg 191 and the second rear support leg 192 provide limiting support for the rear ends of the first main beam 11 and the second main beam 12, and the front ends of the first main beam 11 and the second main beam 12 are tilted up due to the fact that the rear ends of the first main beam 11 and the second main beam 12 sink too heavily; after the construction of all pile foundations in the same row as the pile foundation to be constructed and the bearing platform of the pier is completed, the front supporting legs 18 provide front end supports for the first main beam 11 and the second main beam 12, the construction and installation of the span plate are convenient, and after the installation of the span plate is completed, the suspended piling construction of the pile foundations in the next row can be carried out.

The utility model provides a unsettled self-supporting formula pile driver can utilize the bridge girder erection mechanism to carry out unsettled pile driving to heavy overlength precast pile, need not to provide the support position at the front end of bridge girder erection mechanism, satisfies the pile foundation construction requirement in engineering geological conditions is complicated or is in rivers and seas lake, practices thrift construction cost, improves the engineering progress. This pile driver adopts the hoist engine design, has promoted its stroke and load by a wide margin to utilize folding mechanism to become width of cloth rotation with pile mechanism along the front end of bridging mechanism, realize pile mechanism at the vertical unsettled pile of the front end of bridging mechanism, convenient operation improves work efficiency.

The above are only specific embodiments of the present invention, and the protection scope of the present invention is not limited thereby; any replacement and improvement made on the basis of not violating the conception of the utility model belong to the protection scope of the utility model.

Claims

1. A suspended self-supporting pile driver is characterized by comprising a bridge erecting mechanism, a pile driving mechanism and a folding mechanism, wherein the folding mechanism comprises a stand column supporting seat, an amplitude-variable winch, a first sliding support, a second sliding support, a supporting frame, an amplitude-variable telescopic oil cylinder and an amplitude-variable pulley block; the pile driving mechanism comprises an upright tower, an amplitude variation guide rail and a rotating support, wherein the amplitude variation guide rail and the rotating support are respectively arranged on the rear side surface of the upright tower, and the amplitude variation guide rail is positioned above the rotating support; the upright post supporting seat and the variable amplitude winch are respectively arranged above the middle part of the front end supporting connecting beam, and the upright post tower is rotationally connected with the upright post supporting seat through the rotating support; the first sliding support and the second sliding support are respectively connected with the amplitude variation guide rail in a sliding manner, the first sliding support is positioned above the second sliding support, the upper end of the support frame is hinged with the first sliding support, and two sides of the lower end of the support frame are respectively hinged with the first main beam and the second main beam; two ends of the variable amplitude telescopic oil cylinder are respectively hinged with the first sliding support and the second sliding support; the amplitude-variable pulley block comprises a first pulley and a second pulley, the first pulley is hinged with the first sliding support, the second pulley is hinged with the upright post supporting seat, the amplitude-variable winch is provided with an amplitude-variable steel wire rope, and the amplitude-variable steel wire rope is wound on the amplitude-variable pulley block.

2. The suspended self-supporting pile driver as recited in claim 1, wherein the pile driving mechanism further comprises a luffing cylinder fixing seat and a movable bolt, the luffing cylinder fixing seat is mounted at the lower end of the luffing guide rail, the luffing telescopic cylinder comprises a piston rod and a cylinder barrel, the piston rod is hinged to the first sliding support, the cylinder barrel is hinged to the second sliding support, and the second sliding support is rotatably connected to the luffing cylinder fixing seat through the movable bolt.

3. The suspended self-supporting pile driver of claim 1, wherein the pile driving mechanism further comprises a hoisting winch, a hoisting cable, a hoisting pulley block, a pile driving hammer, and a front rail, the hoisting winch and the hoisting pulley block are respectively mounted on the middle part and the top end of the column tower, the front rail is mounted on the front side surface of the column tower, the pile driving hammer is slidably connected with the front rail, one end of the hoisting cable is connected with the hoisting winch, and the other end of the hoisting cable is connected with the pile driving hammer through the hoisting pulley block.

4. The suspended self-supporting pile driver as recited in claim 1, wherein said pile driving mechanism further comprises a first clamping arm, a second clamping arm, a first clamping cylinder, a second clamping cylinder, a first clamping support, a second clamping support, two sides of said column tower comprise a first side surface and a second side surface, said first clamping support and said second clamping support are respectively mounted on the lower ends of the middle portions of said first side surface and said second side surface, said first clamping support and said second clamping support are respectively located on two opposite sides of said column tower, one end of said first clamping arm and one end of said first clamping cylinder are respectively hinged with said first clamping support, said first clamping cylinder is located behind said first clamping arm, the other end of said first clamping cylinder is hinged with the middle portion of said first clamping arm, one end of said second clamping arm and one end of said second clamping cylinder are respectively hinged with said second clamping support, the second clamping oil cylinder is located behind the second clamping arm, and the other end of the second clamping oil cylinder is hinged to the middle of the second clamping arm.

5. The suspended self-supporting pile driver as recited in claim 1, wherein the support frame is a triangular truss structure, the support frame comprises a first vertical rod and a second vertical rod, the upper ends of the first vertical rod and the second vertical rod are hinged with the first sliding support, and the lower ends of the first vertical rod and the second vertical rod are hinged with the first main beam and the second main beam respectively.

6. The aerial self-supporting pile driver of claim 5, wherein the folding mechanism further comprises a first bottom mount and a second bottom mount, the first bottom mount and the second bottom mount being mounted on the bottom surfaces of the first main beam and the second main beam, respectively, and the lower ends of the first vertical rod and the second vertical rod being hinged to the first bottom mount and the second bottom mount, respectively.

7. The suspended self-supporting pile driver as recited in any one of claims 1 to 6, wherein the bridge erecting mechanism further comprises a stay cable mechanism, the stay cable mechanism comprises a stay cross beam, a first stay support column, a second stay support column, a first front stay cable, a second front stay cable, a first rear stay cable, and a second rear stay cable, the lower ends of the first stay support column and the second stay support column are connected with the middle portions of the first main beam and the second main beam respectively, the two ends of the stay cross beam are connected with the upper ends of the first stay support column and the second stay support column respectively, one end of the first front stay cable and one end of the first rear stay cable are connected with the upper end of the first stay support column, the other end of the first front stay cable and the other end of the first rear stay cable are connected with the front end and the rear end of the first main beam respectively, and one ends of the second front-end stay cable and the second rear-end stay cable are connected with the upper end of the second stay support column, and the other ends of the second front-end stay cable and the second rear-end stay cable are respectively connected with the front end and the rear end of the second main beam.

8. The flying self-supporting pile driver of claim 7, wherein the bridging mechanism further comprises a first crane and a second crane, and the two ends of the first crane and the second crane are slidably connected to the top surfaces of the first main beam and the second main beam respectively.

9. The suspended self-supporting pile driver of claim 7, wherein the bridging mechanism further comprises a first front middle leg, a second front middle leg, a first rear middle leg, and a second rear middle leg, wherein the upper ends of the first front middle leg and the second front middle leg are slidably connected with the bottom surfaces of the front ends of the middle portions of the first main beam and the second main beam, respectively, and the upper ends of the first rear middle leg and the second rear middle leg are slidably connected with the bottom surfaces of the rear ends of the middle portions of the first main beam and the second main beam, respectively.

10. The suspended self-supporting pile driver as recited in claim 7, wherein the bridging mechanism further comprises a front leg, a first rear leg and a second rear leg, the top ends of the front leg are slidably connected to the bottom surfaces of the front ends of the first main beam and the second main beam, respectively, and the upper ends of the first rear leg and the second rear leg are connected to the bottom surfaces of the rear ends of the first main beam and the second main beam, respectively.