CN111663530A - Walking pile driver - Google Patents

Abstract

A walking pile driver comprises a main platform, a walking frame, a tower frame, an inclined support, a lifting frame, a jacking mechanism and a lifting rope, wherein the tower frame is positioned right in front of the main platform; the upper tower frame and the bottom tower frame are both truss type structures with rectangular sections; the bottom tower frame is arranged behind a joint fork seat at the front end of the main platform through a joint fork pivot extending out and locked, and a lower extending flange of the bottom tower frame is fixedly connected with a butt flange of the main platform in a butt joint mode after the tower frame finishes vertical erection; the main hoisting mechanism, the pile hoisting mechanism and the traction hoisting mechanism are arranged along the front-back direction of the rack body; the pedals are arranged along the outer edge of the rack body; the lifting frame is an A-shaped structure body, the upper end of the lifting frame is connected with a lifting rope, and the lower end of the lifting frame is respectively pivoted on the rack body for locking; the inclined supports are obliquely arranged between the tower frame and the main platform from left to right; the jacking mechanism is positioned between the main platform and the walking frame. The truss type tower is adopted, so that the truss type wind power generation tower has the characteristics of good wind penetrability, light dead weight, high strength, small grounding specific pressure and the like, and ensures the construction safety and is convenient to maintain.

Description

Walking pile driver

Technical Field

The invention relates to the technical field of construction machinery, in particular to a walking type pile driver.

Background

The pile driver has the characteristics of good stability, accurate hammering falling point, adjustable verticality, high maneuvering flexibility, high working efficiency and the like, and has the functions of guiding the pile hammer and the pile, positioning the hung pile, fixing the driving position of the pile and bearing the weight of the pile hammer and the pile. The pile driver is used as a working machine of a working device such as a barrel type diesel hammer, a hydraulic pile driving hammer, a drilling machine, a long spiral drilling machine and the like to carry out pile foundation engineering construction, and is widely applied to foundation construction work of urban subways, elevated roads, bridges, industrial and civil high-rise buildings. In the prior art, the pile driver generally adopts a barrel type upright post, which has higher strength and rigidity, but the weight of the whole pile driver is large and the pile driver is difficult to move and transfer due to the large self weight and the large windward side, so that the pile driver has larger potential safety hazard when used in coastal areas, and has larger influence on the operation stability of the pile driver. Therefore, the column structure of the pile driver needs to be effectively improved, the self weight and the windward area of the column are reduced as much as possible on the premise of ensuring the strength and the rigidity of the column, and the pile driver is suitable for pile foundation construction in coastal areas.

Disclosure of Invention

The invention mainly aims to overcome the defects in the prior art, and provides a walking pile driver with good wind penetration of a tower frame, light dead weight, safety and reliability.

In order to achieve the above purpose, the solution adopted by the invention is as follows:

the utility model provides a walking pile driver, includes main platform, walking frame, pylon, bearing diagonal, plays gallows, climbing mechanism, lifting rope, wherein:

the main platform comprises a platform body with a tower mounting area and a lifting frame support, a main hoisting mechanism, two pile hoisting mechanisms, two traction hoisting mechanisms, a hydraulic electric control system, two bottom pulley frames and a central pulley frame which are positioned on the front side of the platform body, a plurality of pedals which are arranged along the outer side of the platform body, and a balance weight which is positioned on the rear end part of the platform body; the tower mounting area comprises two joint fork seats and two butt flanges;

the walking frame comprises a left walking frame, a right walking frame, a front walking frame and a rear walking frame;

the tower comprises an upper tower, a bottom tower, a top pulley yoke positioned at the top end of the tower, two middle pulley yokes positioned in the middle of the tower and a guide rail; the upper tower comprises four first main chords, a plurality of first partition plates positioned on the front face of the upper tower, a plurality of first transverse web members and first oblique web members positioned on the left, right and back faces of the upper tower, and the bottom tower comprises four second main chords, a plurality of second partition plates positioned on the front face of the upper tower, a plurality of second web members and second oblique web members positioned on the left, right and back faces of the upper tower; the guide rail comprises an upper guide rail with two upper guide pipes and a plurality of upper partition plates and a lower guide rail with two lower guide pipes and a plurality of lower partition plates;

the lifting frame comprises a left rod body and a right rod body which are provided with rod end ear plates, and a cross rod body provided with a plurality of check rings;

the jacking mechanism comprises two groups of left jacking oil cylinders, two groups of right jacking oil cylinders, two groups of front jacking oil cylinders and two groups of rear jacking oil cylinders;

the method is characterized in that:

the tower is arranged at the end part right in front of the main platform and is formed by butting an upper tower and a bottom tower; the upper tower frame and the bottom tower frame are both truss-type structures with rectangular sections; four first main chords of the upper tower are arranged at four corners of the upper tower along the vertical direction of the upper tower; the first partition plates are arranged between the two first main chords on the front face of the upper tower frame at equal intervals; the first cross web members are respectively arranged between the two first main chords on the left, right and back sides of the upper tower frame at equal intervals; the first diagonal web members are respectively arranged in a cross manner in an area formed between the two first main chords and the two first transverse web members; the lower ends of the four first main chords of the upper tower are provided with protruding flanges; the middle pulley frames are respectively arranged on the left side surface and the right side surface of the middle part of the upper tower frame, and the extending ends of the middle pulley frames are respectively provided with a pulley; four second main chords of the bottom tower are arranged at four corners of the bottom tower along the vertical direction of the bottom tower; the second partition plates are arranged between the two second main chords on the front face of the lower tower at equal intervals; the second cross web members are respectively arranged between the two second main chords on the left, right and back sides of the bottom tower at equal intervals; the second diagonal web members are respectively arranged in a cross manner in an area formed between the two second main chords and the second transverse web member; the upper end parts of four second main chords of the bottom tower are respectively provided with an upper extending flange, the front two lower end parts of the four second main chords are respectively provided with a lower extending flange, and the rear two lower end parts of the four second main chords are respectively provided with a lower extending pitch fork; the middle pulley frames are respectively arranged on the left side surface and the right side surface of the middle part of the upper tower frame, and the extending ends of the middle pulley frames are respectively provided with a pulley; the upper tower frame is fixedly installed by screws after being butted by the convex flanges at the lower end parts of the four first main chords and the upper extending flanges at the upper end parts of the four second main chords of the bottom tower frame to form the tower frame; the guide rail is formed by butting an upper guide rail and a lower guide rail; the upper guide rail is arranged on the front surface of the upper tower along the vertical direction of the upper tower and is fixedly arranged on a first partition plate of the upper tower through an upper partition plate; the upper partition plates are transversely arranged between the two upper guide pipes at equal intervals; the lower guide rail of the guide rail is arranged on the front surface of the bottom tower frame along the vertical direction of the bottom tower frame and is fixedly arranged on a second partition plate of the bottom tower frame through a lower partition plate; the lower partition plates are transversely arranged between the two lower guide pipes at equal intervals; the two upper guide pipes and the two lower guide pipes are butted to form two long guide pipes;

the tower is vertically arranged in a tower mounting area at the front end part of the platform body, the upper tower is fixedly arranged by screws after being butted by a convex flange at the lower end part of the four first main chord members and an upper extending flange at the upper end part of the four second main chord members of the bottom tower, the bottom tower is locked by two extending pitch forks which are respectively pivoted on two pitch fork seats at the front end of the tower mounting area of the main platform, and the two lower extending flanges of the bottom tower are fixedly arranged by screws after the tower is vertically erected and are butted with two butting flanges at the rear end of the tower mounting area;

the frame body of the main platform is a rectangular frame structure body; the tower mounting area is positioned in front of the rack body; the central pulley yoke is positioned in the tower mounting area; the two bottom pulley racks are respectively arranged on the rack bodies at the left side and the right side of the tower frame mounting area; the two lifting frame supports are respectively arranged on the rack body outside the two bottom pulley frames; the main hoisting mechanism, the two pile hoisting mechanisms and the two traction hoisting mechanisms are sequentially arranged on the upper end surface of the rack body along the front-back direction of the rack body; a steel wire rope led out by the main hoisting mechanism bypasses the central pulley yoke, upwards passes through the top pulley yoke and then is connected with an external pile hammer arranged on a guide rail on the front side of the tower; the steel wire ropes led out by the two traction hoisting mechanisms respectively bypass the two bottom pulley racks and then are connected with the lifting hook to drag and drag the external precast pile to the front side of the rack body; the steel wire ropes led out by the two pile hoisting mechanisms respectively bypass the two bottom pulley frames and then upwards pass through the two middle pulley frames to be connected with the lifting hook so as to hoist the external precast pile to enter the pile position in front of the rack body; the pedals are arranged into a square corridor along the edges of the left, right and rear side surfaces of the rack body, and the square corridors are respectively inserted into the mounting seats on the left, right and rear side surfaces of the rack body through two end parts of a tripod positioned at the bottom of the square corridor and locked by a pin shaft; the hydraulic electric control system is arranged at the installation position between the main hoisting mechanism and the balance weight on the rack body;

the lifting frame is an A-shaped structure body; the upper ends of the left rod body and the right rod body are welded together through a lifting lug plate, and one end of the lifting lug plate is connected with a steel wire rope led out by a main hoisting mechanism and then used for vertically hoisting a tower; the lower ends of the left rod body and the right rod body are respectively arranged on a lifting frame support of the rack body through rod end ear plate pivots to be locked; the transverse rod body is fixed with the left rod body and the right rod body into a whole, and the check rings are respectively arranged on the transverse rod bodies outside the left rod body and the right rod body;

one end of the lifting rope is connected with the other end of the lifting lug plate at the upper end of the lifting frame, and the other end of the lifting rope is connected to the back of the unit tower frame of the tower frame;

the two inclined supports are obliquely arranged between the tower frame and the main platform from left to right, the upper ends of the two inclined supports are respectively hinged to the back of the upper part of the tower frame, and the lower ends of the two inclined supports are respectively fixedly provided with an inclined support seat which is pivoted on the left side and the right side of the stand body of the main platform after an adjusting joint fork;

the jacking mechanism is arranged between the main platform and the walking frame, two groups of left jacking oil cylinders and two groups of right jacking oil cylinders are respectively arranged between the left lower end face of the rack body and the left walking frame and between the right lower end face of the rack body and the right walking frame, and two groups of front jacking oil cylinders and two groups of rear jacking oil cylinders are respectively arranged between the front lower end face of the rack body and the front walking frame and between the rear lower end face of the rack body and the rear walking frame.

The adjusting pad is arranged between the lower extending flange of the tower at the bottom of the tower and the two butt flanges of the main platform, and the verticality of the tower is adjusted after the tower is erected vertically.

The invention can also be that the conical plugs are arranged above the two lower guide pipes of the lower guide rail of the tower frame, and the conical plugs are respectively inserted into the end holes of the two upper guide pipes of the upper guide rail when the two upper guide pipes of the upper guide rail are in butt joint with the two lower guide pipes of the lower guide rail.

The first main chord member of the upper tower frame and the second main chord member of the bottom tower frame are both made of integral steel pipes; the first transverse web member, the first inclined web member, the second transverse web member and the second inclined web member are all made of steel pipes; the first partition plate and the second partition plate are both made of steel plates.

Drawings

FIG. 1 is a schematic structural view of a walking pile driver of the present invention;

FIG. 2 is a right side view of FIG. 1;

FIG. 3 is a top view of FIG. 1;

FIG. 4 is an enlarged view of a portion H of FIG. 1;

FIG. 5 is a sectional view taken along line B-B of FIG. 4;

FIG. 6 is a schematic view of the construction of the upper tower of the present invention;

FIG. 7 is a right side view of FIG. 6;

FIG. 8 is a top view of FIG. 6;

FIG. 9 is a schematic structural view of a bottom tower of the present invention;

FIG. 10 is a right side view of FIG. 9;

FIG. 11 is an enlarged view of a portion E of FIG. 9;

FIG. 12 is an enlarged view of a portion F of FIG. 10;

FIG. 13 is a partial block diagram of the front of the main platform of the present invention;

FIG. 14 is a partial block diagram of the center of the main platform of the present invention;

FIG. 15 is a schematic view of the construction of the lifting frame of the present invention;

FIG. 16 is a partial schematic view of the connection between the step plate and the platform body according to the present invention;

FIG. 17 is a left side view of FIG. 16;

FIG. 18 is a bottom view of FIG. 16;

fig. 19 is a schematic view of the tower of the present invention in a vertical erect condition.

Detailed Description

As shown in fig. 1-19, a walking pile driver comprises a main platform 1, a walking frame 2, a tower 3, an inclined support 4, a lifting frame 5, a jacking mechanism 6 and a lifting rope 7, wherein the main platform 1 comprises a platform body 10 with a tower mounting area 101 and a lifting frame support 14, a main hoisting mechanism 11, two pile hoisting mechanisms 12, two traction hoisting mechanisms 13, a hydraulic electric control system, two bottom pulley frames 14 and a central pulley frame 15 which are positioned at the front side of the platform body 10, a plurality of pedals 16 arranged along the outer side of the platform body 10 and a counterweight 17 positioned at the rear end part of the platform body 10; the tower mounting area 101 comprises two yoke bases 1011 and two docking flanges 1012; the walking frame 2 comprises a left walking frame 21, a right walking frame 21 ', a front walking frame 22 and a rear walking frame 22'; the tower 3 comprises an upper tower 30, a bottom tower 31, a top pulley yoke 32 positioned at the top end of the tower 3, two middle pulley yokes 33 positioned in the middle of the tower 3 and a guide rail 34; the upper tower 30 includes four first main chords 301, a plurality of first spacers 308 on the front surface thereof, a plurality of first cross web members 302 and first diagonal web members 303 on the left, right and back surfaces thereof, and the bottom tower 31 includes four second main chords 311, a plurality of second spacers 318 on the front surface thereof, a plurality of second web members 312 and second diagonal web members 313 on the left, right and back surfaces thereof; the lifting frame 5 comprises a left rod body 51 and a right rod body 51' with rod end ear plates 53, and a cross rod body 52 with a plurality of retaining rings 521; the jacking mechanism 6 comprises two groups of left jacking cylinders 61, two groups of right jacking cylinders 61 ', two groups of front jacking cylinders 62 and two groups of rear jacking cylinders 62'; wherein:

the tower 3 is positioned at the end part right in front of the main platform 1 and is formed by butting an upper tower 30 and a bottom tower 31; four first main chords 301 of the upper tower 30 are arranged at four corners thereof in the vertical direction of the upper tower 30; the first partition plates 308 are arranged between the two first main chords 301 on the front surface of the upper tower 30 at equal intervals; the first cross web members 302 are respectively arranged at equal intervals between the two first main chords 301 on the left, right and back sides of the upper tower 30; the first diagonal web members 303 are respectively arranged in a cross manner in the areas formed between the two first main chords 301 and the two first transverse web members 302; the lower ends of the four first main chords 301 of the upper tower 30 are provided with protruding flanges 3011; the middle pulley yoke 33 is respectively arranged on the left side surface and the right side surface of the middle part of the upper tower frame 30, and the extending ends of the middle pulley yoke are respectively provided with pulleys; the four second main chords 311 of the bottom tower 31 are arranged at the four corners thereof in the vertical direction of the bottom tower 31; the second partition 318 is disposed at equal distance between two second main chords 311 on the front surface of the lower tower 31; the second cross web members 312 are respectively arranged at equal distances between the two second main chords 311 on the left, right and back sides of the bottom tower 31; the second diagonal web members 313 are respectively arranged in a cross manner in the area formed between the two second main chords 311 and the second transverse web member 312; the upper ends of the four second main chords 311 of the bottom tower 31 are provided with upper extending flanges 3111, the front two lower ends of the lower ends are provided with lower extending flanges 3111', and the rear two lower ends are provided with lower extending forks 3112; the middle pulley yoke 33 is respectively arranged on the left side surface and the right side surface of the middle part of the upper tower frame 30, and the extending ends of the middle pulley yoke are respectively provided with pulleys; the upper tower 30 is fixedly mounted by screws after being butted by the convex flanges 3011 at the lower end parts of the four first main chords 301 and the upper extending flanges 3111 at the upper end parts of the four second main chords 311 of the bottom tower 31 to form a tower 3; when the tower needs to be transported in a transition place, the tower can be conveniently disassembled into an upper tower and a bottom tower, and the requirements of tower transition transportation and ground moving construction are met. The first main chord 301 of the upper tower 30 and the second main chord 311 of the bottom tower 31 are both made of integral steel pipes; effectively ensuring reliable strength and performance. The first cross web member 302, the first inclined web member 303, the second cross web member 312 and the second inclined web member 313 are all made of steel pipes; the first partition plate 308 and the second partition plate 318 are made of steel plates. The tower frame has the characteristics of simple structure, convenience in manufacturing, stability, reliability and the like, and the manufacturing cost of the tower frame at the bottom is effectively reduced.

The guide rail is formed by butting an upper guide rail 34 and a lower guide rail 34'; the upper guide rail 34 is arranged on the front surface of the upper tower 30 along the vertical direction thereof, and is fixedly arranged on the first partition plate 308 of the upper tower 30 through an upper partition plate 342; the upper partition 342 is transversely disposed between the two upper conduits 341 at equal intervals; the lower guide rail 34 'of the guide rail is arranged on the front surface of the bottom tower 31 along the vertical direction of the bottom tower 31 and is fixedly arranged on the second partition plate 318 of the bottom tower 31 through a lower partition plate 342'; the lower partition 342 'is transversely arranged between the two lower conduits 341' at equal intervals; the two upper conduits 341 and the two lower conduits 341' are butted to form two long conduits. Conical plugs 343 'are provided above the two lower conduits 341' of the lower rail 34 'of the guide rail of the tower 3, and the conical plugs 343' are respectively inserted into the end holes of the two upper conduits 341 of the upper rail 34 when the two upper conduits 341 of the upper rail 34 are butted with the two lower conduits 341 'of the lower rail 34'.

The tower 3 is vertically installed on the tower installation area 101 at the front end of the platform body 10, the upper tower 30 is fixedly installed by screws after being abutted by the protruded flange 3011 at the lower end of the four first main chords 301 and the upper protruded flange 3111 at the upper end of the four second main chords 311 of the bottom tower 31, the bottom tower 31 is respectively and pivotally installed on the two yoke bases 1011 at the front end of the tower installation area 101 of the main platform 1 by the two protruded yokes 3112 and is locked, and the two lower protruded flanges 3111' of the bottom tower 31 are fixedly installed by screws after the tower 3 is vertically erected and abutted with the two abutting flanges 1012 at the rear end of the tower installation area 101. An adjusting pad 99 is arranged between the two lower extending flanges 3111' of the tower 31 at the bottom of the tower 3 and the two butting flanges 1012 of the main platform 1, and the verticality of the tower 3 is adjusted after the tower is erected vertically, so that the piling vertical precision requirement of the design requirement is met.

The rack body 10 of the main platform 1 is a rectangular frame structure body; the tower installation area 101 is located in front of the stand body 10; the central pulley yoke 15 is located in the tower mounting area 101; the two bottom pulley frames 14 are respectively arranged on the rack bodies 10 at the left side and the right side of the tower mounting area 101; the two lifting bracket supports 14 are respectively arranged on the rack body 10 at the outer sides of the two bottom pulley racks 14; the main hoisting mechanism 11, the two pile hoisting mechanisms 12 and the two traction hoisting mechanisms 13 are sequentially arranged on the upper end surface of the rack body 10 along the front-back direction; the steel wire rope led out by the main hoisting mechanism 11 bypasses the central pulley yoke 15, upwards passes through the top pulley yoke 32 and then is connected with an external pile hammer arranged on a guide rail at the front of the tower 3; the steel wire ropes led out from the two traction hoisting mechanisms 13 respectively bypass the two bottom pulley racks 14 and then are connected with a lifting hook to drag and drag the external precast pile to the front side of the platform body 10; therefore, the using function of the pile driving machine can be fully exerted, the precast pile used for pile foundation operation can be dragged to the position close to the pile driving position without external equipment, and the construction cost is effectively saved. The steel wire ropes led out from the two pile hoisting mechanisms 12 respectively bypass the two bottom pulley frames 14 and then pass through the two middle pulley frames 33 upwards to be connected with a lifting hook so as to hoist the external precast pile into the pile position in front of the platform body 10; therefore, the vertical centering function of the precast pile entering the pile position is realized by winding and unwinding the steel wire ropes through the two pile hoisting mechanisms 12, so that the precast pile smoothly enters the pile cap below the pile hammer, and the pile driving efficiency is effectively improved. The footrests 16 are arranged in a zigzag corridor along the edges of the left, right and rear sides of the stand body 10, and they are locked by pins after being inserted into the mounting seats 102 on the left, right and rear sides of the stand body 10 through the two end prongs of the tripod 161 at the bottom thereof, respectively. Therefore, the main platform has enough walking and moving areas, so that constructors can safely work and maintain the main platform conveniently, and the safety performance of the pile driver is improved. When the walking pile driver is transferred to a field for transportation, the pedals 16 on the left side, the right side and the rear side of the main platform 1 can be conveniently and completely put down, and the width dimension of the main platform 1 is ensured to meet the transportation requirement. The hydraulic electric control system is arranged at the installation position between the main hoisting mechanism 11 and the counterweight 17 on the stand body 10.

The lifting frame 5 is an A-shaped structure; the upper ends of the left rod body 51 and the right rod body 51' are welded together through a lifting lug plate 54, and one end of the lifting lug plate is connected with a steel wire rope led out by the main hoisting mechanism 11 and then used for vertically lifting the tower 3; the lower ends of the left rod body 51 and the right rod body 51' are respectively pivoted on the lifting bracket support 18 of the stand body 10 through a rod end ear plate 53 to be locked; the transverse rod body 52 is fixed with the left rod body 51 and the right rod body 51 'into a whole, and the retaining rings 521 are respectively arranged on the transverse rod body 52 at the outer sides of the left rod body 51 and the right rod body 51'; one end of the lifting rope 7 is connected with the other end of the lifting lug plate 54 at the upper end of the lifting frame 5, and the other end is connected with the back of the unit tower 30 of the tower 3. The two inclined supports 4 are obliquely arranged between the tower 3 and the main platform 1 from left to right, the upper ends of the two inclined supports are respectively hinged with the back surface of the upper part of the tower 3, and the lower ends of the two inclined supports are respectively fixedly provided with an adjusting yoke 41 and then are connected with inclined support seats 19 on the left side and the right side of the rack body 10 of the main platform 1 through pivot shafts.

The jacking mechanism 6 is arranged between the main platform 1 and the walking frame 2, two groups of left jacking cylinders 61 and two groups of right jacking cylinders 61 'are respectively arranged between the left lower end face of the rack body 10 and the left walking frame 21 and between the right lower end face of the rack body 10 and the right walking frame 21', and two groups of front jacking cylinders 62 and two groups of rear jacking cylinders 62 'are respectively arranged between the front lower end face of the rack body 10 and the front walking frame 22 and between the rear lower end face of the rack body 10 and the rear walking frame 22'.

When the tower 3 of the walking pile driver is erected vertically, the two inclined supports 4 connected with the back of the tower 3 are placed between the two check rings 521 on the cross rod body 52 of the lifting frame 5, the main hoisting mechanism 11 is operated by the hydraulic electric control system to tighten the lifting steel wire rope and pull the lifting frame 5 and the tower 3 hinged with the lifting frame backwards, the cross rod body 52 always supports and lifts the left inclined support 4 and the right inclined support 4, the inclined support rods 4 are prevented from sliding off and being damaged in the morning during installation, and therefore the safety and stability of assembling and debugging of the walking pile driver are guaranteed. After the walking pile driver finishes the vertical erection of the tower 3, the adjusting joint forks 41 at the lower ends of the left and right inclined supports 4 are adjusted to be conveniently hinged and fixedly installed with the inclined support seats 19 at the left and right sides of the platform frame body 10. To ensure that the vertical accuracy of the tower 3 meets the specifications, adjusting pads with different thicknesses are selected and arranged at the lower extending flange 3111 'of the lower end part of the bottom tower 31, and the lower extending flange 3111' is fixed with two butting flanges 1012 of the main platform through bolts and nuts, so that the installation and the positioning of the tower 3 on the main platform 1 are completed.

After the walking pile driver finishes the vertical erection of the tower 3, the steel wire rope connected to the top end lug plate 54 of the erection hanger 5 is detached, the erection steel wire rope wound around the main hoisting mechanism 11 is discharged through a hydraulic electric control system and replaced by a hoisting hammer steel wire rope used for lifting an external pile hammer, and at the moment, the use function of the main hoisting mechanism 11 is converted into the lifting and discharging of the external pile hammer; and operating the hydraulic electric control system, discharging the steel wire rope of the hanging hammer from the main hoisting mechanism 11, and connecting the steel wire rope with the lifting hook after bypassing the central pulley yoke 15 on the main platform 1 and the top pulley yoke 32 of the tower 3 to finish the suspension connection of the external pile driving hammer which is positioned below the lifting hook and enters the guide rail of the tower 3, so that the external pile driving hammer is in a state to be constructed.

When the walking pile driver needs to be shifted, the jacking mechanism 6 is controlled by a hydraulic electric control system, and when the two groups of left jacking oil cylinders 61 and the two groups of right jacking oil cylinders 61 ' shrink and lift the left walking frame 21 and the right walking frame 21 ' simultaneously, the walking mechanism is controlled to enable the walking pile driver to move along the left and right directions of the front walking frame 22 and the rear walking frame 22 '; when the two groups of front jacking oil cylinders 62 and the two groups of rear jacking oil cylinders 62 ' are simultaneously contracted and lifted up the front walking frame 22 and the rear walking frame 22 ', the walking pile driver moves back and forth along the left walking frame 21 and the right walking frame 21 ' through operation of the jacking mechanism controlled by the hydraulic and electric control system.

The walking pile driver adopts the truss type tower, has the characteristics of good wind penetrability, light dead weight, small grounding specific pressure of the whole machine, adjustable tower verticality, high tower strength, stable operation, safety, reliability and the like, meets the transition transportation requirement of the pile driver, is convenient for constructors to disassemble, assemble, debug, construct and maintain, adapts to the multifunctional operation requirement, effectively reduces the construction cost, ensures the construction safety and is convenient to maintain, and greatly improves the construction operation efficiency.

Claims (4)

1. The utility model provides a walking pile driver, includes main platform (1), walking frame (2), pylon (3), bearing diagonal (4), plays gallows (5), climbing mechanism (6), lifting rope (7), wherein:

the main platform (1) comprises a platform body (10) with a tower mounting area (101) and a lifting frame support (14), a main hoisting mechanism (11), two pile hoisting mechanisms (12), two traction hoisting mechanisms (13), a hydraulic electric control system, two bottom pulley frames (14) and a central pulley frame (15) which are positioned on the front side of the platform body (10), a plurality of pedals (16) arranged along the outer side of the platform body (10), and a counterweight (17) positioned at the rear end part of the platform body (10); the tower mounting area (101) comprises two joint fork seats (1011) and two butt flanges (1012);

the walking frame (2) comprises a left walking frame (21), a right walking frame (21 '), a front walking frame (22) and a rear walking frame (22');

the tower (3) comprises an upper tower (30), a bottom tower (31), a top pulley yoke (32) positioned at the top end of the tower (3), two middle pulley yokes (33) positioned in the middle of the tower (3) and a guide rail; wherein the upper tower (30) comprises four first main chords (301), a plurality of first bulkheads (308) positioned at the front side thereof, a plurality of first cross web members (302) and first diagonal web members (303) positioned at the left, right and back sides thereof; the bottom tower (31) comprises four second main chords (311), a plurality of second partition plates (318) positioned on the front surface of the bottom tower, a plurality of second cross web members (312) and second diagonal web members (313) positioned on the left, right and back surfaces of the bottom tower; the guide rail includes an upper guide rail (34) having two upper conduits (341), a plurality of upper partitions (342), and a lower guide rail (34 ') having two lower conduits (341 '), a plurality of lower partitions (342 ');

the lifting frame (5) comprises a left rod body (51) and a right rod body (51') which are provided with rod end ear plates (53), and a cross rod body (52) which is provided with a plurality of retaining rings (521);

the jacking mechanism (6) comprises two groups of left jacking cylinders (61), two groups of right jacking cylinders (61 '), two groups of front jacking cylinders (62) and two groups of rear jacking cylinders (62');

the method is characterized in that:

the tower (3) is positioned at the end part right ahead of the main platform (1) and is formed by butting an upper tower (30) and a bottom tower (31); the upper tower (30) and the bottom tower (31) are both truss-type structures with rectangular sections; four first main chords (301) of the upper tower (30) are arranged at four corners of the upper tower (30) in the vertical direction thereof; the first partition boards (308) are arranged between two first main chords (301) on the front face of the upper tower (30) at equal intervals; the first cross web members (302) are respectively arranged between the two first main chords (301) on the left, right and back of the upper tower (30) at equal distances; the first diagonal web members (303) are respectively arranged in a cross way in an area formed between the two first main chords (301) and the two first transverse web members (302); the lower ends of four first main chords (301) of the upper tower (30) are provided with protruding flanges (3011); the middle pulley frames (33) are respectively arranged on the left side surface and the right side surface of the middle part of the upper tower frame (30), and the extending ends of the middle pulley frames are respectively provided with pulleys; four second main chords (311) of the bottom tower (31) are arranged at four corners of the bottom tower (31) along the vertical direction of the bottom tower; the second partition boards (318) are arranged between two second main chords (311) on the front surface of the lower tower (31) at equal distances; the second cross web members (312) are respectively arranged between the two second main chords (311) on the left, right and back of the bottom tower (31) at equal distances; the second diagonal web members (313) are respectively arranged in a cross way in the area formed between the two second main chords (311) and the second transverse web member (312); the upper ends of four second main chords (311) of the bottom tower (31) are respectively provided with an upper extending flange (3111), the front two lower ends of the upper extending flanges are respectively provided with a lower extending flange (3111'), and the rear two lower ends of the lower extending flanges are respectively provided with a lower extending joint fork (3112); the middle pulley frames (33) are respectively arranged on the left side surface and the right side surface of the middle part of the upper tower frame (30), and the extending ends of the middle pulley frames are respectively provided with pulleys; the upper tower (30) is fixedly mounted by screws after being butted by a convex flange (3011) at the lower end part of the four first main chords (301) and an upper extending flange (3111) at the upper end part of the four second main chords (311) of the bottom tower (31) to form a tower (3); the guide rail is formed by butting an upper guide rail (34) and a lower guide rail (34'); the upper guide rail (34) is arranged on the front surface of the upper tower (30) along the vertical direction of the upper tower and is fixedly arranged on a first partition plate (308) of the upper tower (30) through an upper partition plate (342); the upper partition plates (342) are transversely arranged between the two upper guide pipes (341) at equal intervals; the lower guide rail (34 ') of the guide rail is arranged on the front surface of the bottom tower (31) along the vertical direction of the bottom tower (31) and is fixedly arranged on a second partition plate (318) of the bottom tower (31) through a lower partition plate (342'); the lower partition plates (342 ') are transversely arranged between the two lower guide pipes (341') at equal intervals; the two upper conduits (341) and the two lower conduits (341') are butted to form two long conduits;

the tower (3) is vertically arranged in a tower mounting area (101) at the front end part of the rack body (10), the tower (30) at the upper part is fixedly arranged by screws after being butted by a convex flange (3011) at the lower end part of four first main chords (301) and an upper extending flange (3111) at the upper end part of four second main chords (311) of the tower (31) at the bottom part, the tower (31) at the bottom part is respectively and pivotally arranged on two joint fork seats (1011) at the front end of the tower mounting area (101) of the main platform (1) through two extending joint forks (3112) and then is locked, and two lower extending flanges (3111') of the tower (31) at the bottom part are fixedly arranged by screws after the tower (3) is vertically erected and butted with two butting flanges (1012) at the rear end of the tower mounting area (101);

the rack body (10) of the main platform (1) is a rectangular frame structure body; the tower mounting area (101) is positioned in front of the stand body (10); the central pulley yoke (15) is positioned in the tower mounting area (101); the two bottom pulley frames (14) are respectively arranged on the rack bodies (10) at the left side and the right side of the tower mounting area (101); the two lifting frame supports (14) are respectively arranged on the rack body (10) at the outer sides of the two bottom pulley frames (14); the main hoisting mechanism (11), the two pile hoisting mechanisms (12) and the two traction hoisting mechanisms (13) are sequentially arranged on the upper end surface of the rack body (10) along the front-back direction of the rack body; a steel wire rope led out from the main hoisting mechanism (11) bypasses the central pulley yoke (15), upwards passes through the top pulley yoke (32) and then is connected with an external pile hammer arranged on a guide rail at the front of the tower (3); the steel wire ropes led out from the two traction hoisting mechanisms (13) respectively bypass the two bottom pulley frames (14) and then are connected with a lifting hook to drag and drag the external precast pile to the front side of the platform body (10); steel wire ropes led out by the two pile hoisting mechanisms (12) respectively bypass the two bottom pulley frames (14) and then pass through the two middle pulley frames (33) upwards to be connected with a lifting hook so as to hoist an external precast pile into a pile position in front of the platform body (10); the pedals (16) are arranged into a square corridor along the edges of the left, right and rear side surfaces of the stand body (10), and are respectively inserted into the mounting seats (102) on the left, right and rear side surfaces of the stand body (10) through two end parts of a tripod (161) at the bottom of the pedals and locked by a pin shaft; the hydraulic electric control system is arranged at the installation position between the main hoisting mechanism (11) and the counterweight (17) on the rack body (10);

the lifting frame (5) is an A-shaped structure body; the upper ends of the left rod body (51) and the right rod body (51') are welded together through a lifting lug plate (54), and one end of the lifting lug plate is connected with a steel wire rope led out by the main hoisting mechanism (11) and then vertically erected by the tower (3); the lower ends of the left rod body (51) and the right rod body (51') are respectively pivoted on a lifting bracket support (18) of the stand body (10) through a rod end ear plate (53) to be locked; the transverse rod body (52) is fixed with the left rod body (51) and the right rod body (51 ') into a whole, and the check rings (521) are respectively arranged on the transverse rod body (52) at the outer sides of the left rod body (51) and the right rod body (51');

one end of the lifting rope (7) is connected with the other end of the lifting lug plate (54) at the upper end of the lifting frame (5), and the other end of the lifting rope is connected with the back of the unit tower frame (30) of the tower frame (3);

the two inclined supports (4) are obliquely arranged between the tower (3) and the main platform (1) from left to right, the upper ends of the two inclined supports are respectively hinged to the back of the upper part of the tower (3), and the lower ends of the two inclined supports are respectively fixedly provided with an adjusting yoke (41) and then are pivoted on inclined support supports (19) on the left side and the right side of a platform frame body (10) of the main platform (1);

the jacking mechanism (6) is arranged between the main platform (1) and the walking frame (2), two groups of left jacking cylinders (61) and two groups of right jacking cylinders (61 ') are respectively arranged between the left lower end face of the rack body (10) and the left walking frame (21) and between the right lower end face of the rack body (10) and the right walking frame (21'), and two groups of front jacking cylinders (62) and two groups of rear jacking cylinders (62 ') are respectively arranged between the front lower end face of the rack body (10) and the front walking frame (22) and between the rear lower end face of the rack body (10) and the rear walking frame (22').

2. Walking pile driver according to claim 1, characterised in that adjustment pads (99) are provided between the two lower projecting flanges (3111') of the bottom tower (31) of the tower (3) and the two abutment flanges (1012) of the main platform (1), the perpendicularity of which is adjusted after the vertical erection of the tower (3) is completed.

3. Walking pile driver according to claim 1, characterised in that a conical plug (343 ') is provided above both the two downcomers (341') of the lower guide (34 ') of the guide rail of the tower (3), which conical plug (343') is inserted into the end holes of the two upper ducts (341) of the upper guide (34), respectively, when the two upper ducts (341) of the upper guide (34) are in abutment with the two downcomers (341 ') of the lower guide (34').

4. Walking pile driver according to claim 1, characterised in that the first main chord (301) of the upper tower (30), the second main chord (311) of the bottom tower (31) are made of integral steel pipes; the first transverse web member (302), the first inclined web member (303), the second transverse web member (312) and the second inclined web member (313) are all made of steel pipes; the first partition plate (308) and the second partition plate (318) are both made of steel plates.

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