CN112064639A

CN112064639A - Pile driver for building site

Info

Publication number: CN112064639A
Application number: CN202010918527.8A
Authority: CN
Inventors: 李逵; 吴继坤; 陈思宁; 祝捷; 陈禹良; 储志锋; 顾浩; 计佳; 戴萍; 王丽丽
Original assignee: Jiangsu Construction Engineering Group First Engineering Co ltd; Jiangsu Provincial Construction Group Co Ltd
Current assignee: Jiangsu Construction Engineering Group First Engineering Co ltd; Jiangsu Provincial Construction Group Co Ltd
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2020-12-11

Abstract

The invention discloses a pile driver for a construction site, which comprises a base plate, a support and a pile driving mechanism, wherein the pile driving mechanism comprises a pile driving barrel, a driving mechanism and a clamping mechanism, the driving mechanism comprises a first gear, a second gear, a guide rod and a sliding box, a lubricating mechanism is arranged in the sliding box, and by arranging the driving mechanism, compared with the traditional pile driver which utilizes a steel wire rope to pull a pile driving hammer to strike, the pile driving mechanism can drive the pile driving hammer to repeatedly and rapidly strike a wooden pile through a motor, so that the pile driving efficiency is greatly improved; through setting up lubricated mechanism, when going actuating mechanism and function, drive lubricated mechanism and produce oil to it is more smooth and easy when making actuating mechanism move, has avoided dismantling the lubrication to equipment.

Description

Pile driver for building site

Technical Field

The invention relates to the technical field of construction site equipment, in particular to a pile driver for a construction site.

Background

The pile driver consists of a pile hammer, a pile frame, accessory equipment and the like. The pile hammer is attached between two parallel vertical guide rods (commonly called gantry) at the front part of the pile frame and is hoisted by a hoisting hook. The pile frame is a steel structure tower frame, and a winch is arranged at the rear part of the pile frame and used for hoisting the pile and the pile hammer. The guide frame consisting of two guide rods is arranged in front of the pile frame and used for controlling the piling direction, so that the pile can be accurately penetrated into the stratum according to the designed direction, and the wood pile support is widely applied to water conservancy, bridges and shallow foundation pits of buildings. When the wooden piles are driven, the wooden piles are driven to a stable depth one by one, and then driven to a designed depth in sequence. Under the condition that the verticality is guaranteed, the design depth can be reached at one time. When the pile is driven, whether the position is correct or not and whether the pile body is vertical or not are checked at any time, and when the position is not in accordance with the requirement, the pile is corrected or pulled to be driven again.

When the existing pile driver is used for driving a wood pile to strike, the pile driver generally drives a pile driving hammer to ascend through a steel wire rope, then the weight of the pile driving hammer falls down to drive the pile, the pile driver is poor in linear type, the wood pile is easy to be obliquely driven into the ground, and the steel wire rope is low in ascending efficiency, so that the defect that the pile driving efficiency of the pile driver is low is caused.

Disclosure of Invention

The invention aims to provide a pile driver for a construction site, which solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a pile driver for a building site comprises a base plate, a support and a pile driving mechanism, wherein the top surface of the base plate is connected with the bottom surface of the support through a first electric hydraulic cylinder, a second electric hydraulic cylinder and a third electric hydraulic cylinder, the output ends of the first electric hydraulic cylinder, the second electric hydraulic cylinder and the third electric hydraulic cylinder are hinged with the bottom surface of the support, the second electric hydraulic cylinder and the third electric hydraulic cylinder are obliquely arranged, the pile driving mechanism comprises a pile driving barrel, a driving mechanism and a clamping mechanism, the pile driving barrel is connected with the top of the support through a fourth electric hydraulic cylinder, the driving mechanism comprises a first gear, a second gear, a guide rod and a sliding box, the first gear and the second gear are rotatably arranged in the pile driving barrel and are meshed with the second gear, the first gear is driven by a motor arranged outside the pile driving barrel and comprises a gear body and two groups of gear teeth arranged on the gear body, two groups of gear teeth are symmetrically distributed at two ends of the gear body in the diameter direction, the sliding box is fixedly arranged on the top surface of the inner cavity of the pile driving barrel, the side surface of the sliding box is provided with a sliding groove, the guide rod is inserted in the sliding groove in a sliding manner, the guide rod is provided with a rack meshed with the first gear, the bottom of the guide rod is fixedly provided with a first piston block, the inner wall of the pile driving barrel is fixedly provided with a piston barrel, the first piston block is arranged in the piston barrel in a sealing and sliding manner, the side surface of the piston barrel is provided with an air duct which penetrates through the pile driving barrel and is communicated with the outside, a one-way valve which only allows air to flow into the piston barrel is arranged in the air duct, a support plate is fixedly arranged in the pile driving barrel below the piston barrel, a support rod is arranged at the center of the support plate in a sliding manner, a pile driving, and the second piston block is arranged in the piston cylinder in a sealing and sliding manner, and the support rod is sleeved with a spring on the rod body of the support plate and the second piston block.

As a further scheme of the invention: the side of the piling barrel is fixedly provided with a sliding block, the side of the support is fixedly provided with a sliding rod, and the sliding block is slidably sleeved on the sliding rod.

As a further scheme of the invention: the cavity has been seted up in the smooth box, be equipped with lubricating mechanism in the cavity, lubricating mechanism includes batch oil tank and a play oil section of thick bamboo, the fixed top of locating the cavity of batch oil tank, and the batch oil tank is linked together through transfer line and pile section of thick bamboo outward, a play oil section of thick bamboo is fixed to be located the cavity side, a play oil section of thick bamboo left surface bottom is linked together through first connecting pipe and batch oil tank bottom, and a play oil section of thick bamboo right flank bottom is linked together through second connecting pipe and spout, install the first one-way channel that only allows lubricating oil flow to a play oil section of thick bamboo on the first connecting pipe, install the one-way channel of second that only allows lubricating oil to flow out a play oil section of thick bamboo on the second connecting pipe, a sealed slip is equipped with the closing plate in the play oil section.

As a further scheme of the invention: the outer walls of the sealing plate, the first piston block and the second piston block are sleeved with rubber rings, and annular grooves are formed in the outer portions of the rubber rings.

As a further scheme of the invention: the clamping mechanism comprises a telescopic rod, a friction wheel and a clamping sleeve, the telescopic rod is fixedly arranged on the inner side wall of the pile driving barrel, the clamping sleeve is fixedly arranged at the output end of the telescopic rod, and the friction wheel rotates and is arranged in the clamping sleeve.

As a further scheme of the invention: the telescopic link is equipped with four, four the telescopic link is located on the section of thick bamboo inside wall of piling.

As a further scheme of the invention: the bottom surface four corners of bottom plate all are equipped with the universal wheel, be equipped with brake equipment on the universal wheel, the top surface of bottom plate is equipped with the weight-increasing piece, and the side of bottom plate is equipped with push-and-pull handle.

As a further scheme of the invention: the bottom of the support is fixedly provided with a taper rod.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention arranges the driving mechanism, when the gear teeth on the first gear are engaged with the rack on the guide rod, the guide rod moves upwards, when the gear teeth are engaged with the second gear, the gear teeth and the rack are not engaged, the second gear is engaged with the rack at the same time, the guide rod moves downwards, the motor drives the first gear to rotate continuously, the guide rod reciprocates up and down, thereby the first piston block reciprocates up and down in the piston cylinder, when the first piston block moves upwards, the outside air enters the piston cylinder through the air duct, when the first piston block moves downwards, the first piston block compresses the air in the piston cylinder, the compressed air pushes the second piston block to move downwards rapidly through the expansion force, the second piston rod generates strong impact force downwards by matching with the thrust force of the first piston block, when the second piston block moves to the bottom of the piston cylinder, the compressed air leaks from the two sides of the second piston block, compared with the traditional pile driver which uses a steel wire rope to pull the pile driving hammer to strike, the invention can drive the pile driving hammer to repeatedly and rapidly strike the wooden pile by the motor, thereby greatly improving the pile driving efficiency.

2. According to the invention, the lubricating mechanism is arranged, when the guide rod drives the sealing plate to move upwards in the oil outlet cylinder through the support rod, the lubricating oil in the oil storage tank flows into the oil outlet cylinder through the first connecting pipe, and when the guide rod drives the sealing plate to move downwards, the lubricating oil in the oil outlet cylinder flows into the sliding groove through the second connecting pipe, so that a lubricating effect is achieved between the sliding groove and the guide rod, the guide rod can move up and down in a reciprocating manner more smoothly, and the service life of the pile driver is prolonged.

Drawings

Fig. 1 is a schematic view showing the overall construction of a pile driver for construction sites.

Fig. 2 is an enlarged view of a in fig. 1.

Fig. 3 is an enlarged view of B in fig. 1.

Fig. 4 is an enlarged view of C in fig. 2.

Fig. 5 is a bottom view of a clamping mechanism in a pile driver for construction sites.

Fig. 6 is a schematic view showing the connection between the support and the pile driving mechanism in the pile driver for construction sites.

In the figure: 1-bottom plate, 2-bracket, 3-first electric hydraulic cylinder, 4-second electric hydraulic cylinder, 5-third electric hydraulic cylinder, 6-pile driving barrel, 7-fourth electric hydraulic cylinder, 8-first gear, 9-second gear, 10-guide rod, 11-sliding box, 12-motor, 13-gear body, 14-gear tooth, 15-chute, 16-rack, 17-first piston block, 18-piston barrel, 19-air duct, 20-one-way valve, 21-supporting plate, 22-supporting rod, 23-pile driving hammer, 24-second piston block, 25-spring, 26-sliding block, 27-sliding rod, 28-cavity, 29-oil storage tank, 30-oil outlet barrel, 31-first connecting pipe, 32-second connecting pipe, 33-a first one-way channel, 34-a second one-way channel, 35-a sealing plate, 36-a support rod, 37-a rubber ring, 38-a telescopic rod, 39-a friction wheel, 40-a jacket, 41-a universal wheel, 42-a weight increasing block, 43-a push-pull handle and 44-a taper rod.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Example 1

Referring to fig. 1-3, a pile driver for a construction site comprises a base plate 1, a bracket 2 and a pile driving mechanism, wherein the top surface of the base plate 1 is connected with the bottom surface of the bracket 2 through a first electric hydraulic cylinder 3, a second electric hydraulic cylinder 4 and a third electric hydraulic cylinder 5, the output ends of the first electric hydraulic cylinder 3, the second electric hydraulic cylinder 4 and the third electric hydraulic cylinder 5 are hinged with the bottom surface of the bracket 2, the electric hydraulic cylinder 4 and the third electric hydraulic cylinder 5 are obliquely arranged, the pile driving mechanism comprises a pile driving barrel 6, a driving mechanism and a clamping mechanism, the pile driving barrel 6 is connected with the top of the bracket 2 through a fourth electric hydraulic cylinder 7, the driving mechanism comprises a first gear 8, a second gear 9, a guide rod 10 and a sliding box 11, the first gear 8 and the second gear 9 are both rotatably arranged in the pile driving barrel 6, and the first gear 8 is meshed with the second gear 9, the first gear 8 is driven by a motor 12 arranged outside the pile driving barrel 6, the first gear 8 comprises a gear body 13 and two sets of gear teeth 14 arranged on the gear body 13, the two sets of gear teeth 14 are symmetrically arranged at two ends of the diameter direction of the gear body 13, the sliding box 11 is fixedly arranged on the top surface of the inner cavity of the pile driving barrel 6, a sliding groove 15 is formed in the side surface of the sliding box 11, the guide rod 10 is slidably inserted in the sliding groove 15, a rack 16 meshed with the first gear 8 is arranged on the guide rod 10, a first piston block 17 is fixedly arranged at the bottom of the guide rod 10, a piston barrel 18 is fixedly arranged on the inner wall of the pile driving barrel 6, the first piston block 17 is hermetically and slidably arranged in the piston barrel 18, an air guide tube 19 is arranged on the side surface of the piston barrel 18, the air guide tube 19 penetrates through the pile driving barrel 6 and is communicated with the outside, a one-way valve 20 which only allows air to flow into the piston barrel 18 is arranged in the air guide tube 19, a support rod 22 is slidably arranged at the center of the support plate 21, a pile hammer 23 is arranged at the bottom of the support rod 22, a second piston block 24 is arranged at the top of the support rod 22, the second piston block 24 is in a trapezoidal structure, the second piston block 24 is arranged in the piston cylinder 18 in a sealing and sliding manner, a spring 25 is sleeved on the rod body of the support plate 21 and the second piston block 24, through arranging a driving mechanism, when the gear teeth 14 on the first gear 8 are meshed with the rack 16 on the guide rod 10, the guide rod 10 moves upwards, when the gear teeth 14 are meshed with the second gear 9, the gear teeth 14 are not meshed with the rack 16, the second gear 9 is meshed with the rack 16 at the same time, the guide rod 10 moves downwards, the motor 12 drives the first gear 8 to continuously rotate, the guide rod 10 moves upwards and downwards in a reciprocating manner, so that the first piston block 17 moves upwards and downwards in the piston cylinder 18, and when the first piston block 17 moves upwards, external air enters the piston cylinder 18 through the air duct 19, when the first piston block 17 moves downwards, the first piston block 17 compresses the air in the piston cylinder 18, the compressed air pushes the second piston block 24 to move downwards quickly through expansion force, and the thrust of the first piston block 17 is matched, so that the second piston rod generates strong impact force downwards, when the second piston block 24 moves to the bottom of the piston cylinder 18, the compressed air leaks out from two sides of the second piston block 24, so that the pile hammer 23 completes one-time striking action.

The side surface of the pile driving barrel 6 is fixedly provided with a sliding block 26, the side surface of the support 2 is fixedly provided with a sliding rod 27, the sliding block 26 is slidably sleeved on the sliding rod 27, and the pile driving mechanism is more stable when the support 2 moves up and down through the electric hydraulic cylinder four 7 by virtue of the sliding block 26 and the sliding rod 27.

In addition, fixture includes telescopic link 38, friction pulley 39 and presss from both sides the cover 40, telescopic link 38 is fixed to be located the 6 inside walls of pile driving section of thick bamboo, and the fixed cover 40 that presss from both sides that is equipped with of output of telescopic link 38, friction pulley 39 rotates to be located in pressing from both sides the cover 40, through setting up fixture, can effectively prevent the phenomenon that the stake from taking place the skew in the hammering in-process, through setting up friction pulley 39, when electric hydraulic cylinder four 7 drives pile driving section of thick bamboo 6 and descends, has certain slip between stake and friction pulley 39 to reduce the stake and the rigid contact of fixture when being strikeed, improved pile driving mechanism's stability.

Wherein, the telescopic link 38 is equipped with four, four the telescopic link 38 is located on 6 inside walls of piling section of thick bamboo of annular array, through setting up four telescopic links 38, has further improved fixture to the stability of stake centre gripping.

In addition, four corners of the bottom surface of the bottom plate 1 are provided with universal wheels 41, the universal wheels 41 are provided with brake devices, the top surface of the bottom plate 1 is provided with weight increasing blocks 42, the side surface of the bottom plate 1 is provided with a push-pull handle 43, the universal wheels 41 and the push-pull handle 43 are arranged, the pile driver can be conveniently moved, the weight increasing blocks 42 are arranged, and the stability of the pile driver during working is improved.

The bottom of the support 2 is fixedly provided with a taper rod 44, and by arranging the taper rod 44, when the support 2 rotates to be perpendicular to the bottom plate 1, the electric hydraulic cylinder 3 is controlled to descend, so that the taper rod 44 penetrates into the bottom surface, the support 2 is further fixed, and the stability of the pile driver during operation is further improved.

Example 2

The embodiment is improved on the basis of embodiment 1, and specifically comprises the following steps:

a cavity 28 is formed in the sliding box 11, a lubricating mechanism is arranged in the cavity 28, the lubricating mechanism comprises an oil storage tank 29 and an oil outlet cylinder 30, the oil storage tank 29 is fixedly arranged at the top of the cavity 28, the oil storage tank 29 is communicated with the outside of the pile driving cylinder 6 through an infusion tube, the oil outlet cylinder 30 is fixedly arranged on the side surface of the cavity 28, the bottom of the left side surface of the oil outlet cylinder 30 is communicated with the bottom of the oil storage tank 29 through a first connecting tube 31, the bottom of the right side surface of the oil outlet cylinder 30 is communicated with the chute 15 through a second connecting tube 32, a first one-way channel 33 only allowing lubricating oil to flow into the oil outlet cylinder 30 is arranged on the first connecting tube 31, a second one-way channel 34 only allowing lubricating oil to flow out of the oil outlet cylinder 30 is arranged on the second connecting tube 32, a sealing plate 35 is arranged in the oil outlet cylinder 30 in a sealing and sliding mode, the top surface, through setting up lubricated mechanism, when the guide arm 10 passes through branch 36 and drives the closing plate 35 and upwards remove in a play oil section of thick bamboo 30, lubricating oil in the oil storage tank 29 flows to a play oil section of thick bamboo 30 in through first connecting pipe 31, when guide arm 10 drives closing plate 35 and downwards removes, lubricating oil flows to spout 15 through second connecting pipe 32 in a play oil section of thick bamboo 30, thereby lubrication has been played between spout 15 and the guide arm 10, it is more smooth when making the up-and-down reciprocating motion of guide arm 10, pile driver's life has been increased.

The outer walls of the sealing plate 35, the first piston block 17 and the second piston block 24 are sleeved with rubber rings 37, the rubber rings 37 are externally provided with annular grooves, the sealing performance of the piston cylinder 18 and the oil outlet cylinder 30 is improved by arranging the rubber rings 37, the rubber rings 37 are made to be soft and elastic by arranging the annular grooves, and the sealing performance of the piston cylinder 18 and the oil outlet cylinder 30 is further improved.

The working principle of the invention is as follows:

move the pile driver to the assigned position through push-and-pull handle 43, control two 4 electric hydraulic cylinders and three 5 electric hydraulic cylinders, make support 2 and bottom plate 1 be vertical state, control one 3 electric hydraulic cylinders descends, make the taper rod 44 pierce the ground, control four 7 electric hydraulic cylinders again and descend, make the stake top place in pile driving section of thick bamboo 6, control telescopic link 38 is flexible, carry out the centre gripping to the stake, open motor 12 at last, motor 12 drives actuating mechanism operation, make pile hammer 23 hammer the stake fast repeatedly, in actuating mechanism operation, actuating mechanism drives lubricated mechanism and produces oil, play lubricated effect to actuating mechanism, thereby make actuating mechanism operation more smooth and easy.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A pile driver for a building site comprises a base plate (1), a support (2) and a pile driving mechanism, and is characterized in that the top surface of the base plate (1) is connected with the bottom surface of the support (2) through a first electric hydraulic cylinder (3), a second electric hydraulic cylinder (4) and a third electric hydraulic cylinder (5), the output ends of the first electric hydraulic cylinder (3), the second electric hydraulic cylinder (4) and the third electric hydraulic cylinder (5) are hinged with the bottom surface of the support (2), the second electric hydraulic cylinder (4) and the third electric hydraulic cylinder (5) are obliquely arranged, the pile driving mechanism comprises a pile driving barrel (6), a driving mechanism and a clamping mechanism, the pile driving barrel (6) is connected with the top of the support (2) through a fourth electric hydraulic cylinder (7), the driving mechanism comprises a first gear (8), a second gear (9), a guide rod (10) and a sliding box (11), the first gear (8) and the second gear (9) are both rotatably arranged in the pile driving barrel (6), the first gear (8) is meshed with the second gear (9), the first gear (8) is driven by a motor (12) arranged outside the pile driving barrel (6), the first gear (8) comprises a gear body (13) and two groups of gear teeth (14) arranged on the gear body (13), the two groups of gear teeth (14) are symmetrically distributed at two ends of the gear body (13) in the diameter direction, the sliding box (11) is fixedly arranged on the top surface of the inner cavity of the pile driving barrel (6), a sliding groove (15) is formed in the side surface of the sliding box (11), the guide rod (10) is slidably inserted into the sliding groove (15), and a rack (16) meshed with the first gear (8) is arranged on the guide rod (10);

the bottom of the guide rod (10) is fixedly provided with a first piston block (17), the inner wall of the pile driving barrel (6) is fixedly provided with a piston barrel (18), the first piston block (17) is arranged in the piston barrel (18) in a sealing and sliding manner, the side face of the piston barrel (18) is provided with an air duct (19), the air duct (19) penetrates through the pile driving barrel (6) and is communicated with the outside, a one-way valve (20) which only allows air to flow into the piston barrel (18) is arranged in the air duct (19), a support plate (21) is fixedly arranged in the pile driving barrel (6) under the piston barrel (18), a support rod (22) is arranged at the center of the support plate (21) in a sliding manner, the bottom of the support rod (22) is provided with a pile driving hammer (23), the top of the support rod (22) is provided with a second piston block (24), the second piston block (24) is of a trapezoidal structure, and the second piston block (24) is arranged in, and the support rod (22) is positioned on the rod body of the support plate (21) and the second piston block (24) and sleeved with a spring (25).

2. Pile driver for construction sites according to claim 1, characterized in that the pile driving barrel (6) is fixed with a slide block (26) on the side, the bracket (2) is fixed with a slide rod (27) on the side, and the slide block (26) is slidably sleeved on the slide rod (27).

3. The pile driver for building site according to claim 1, wherein a cavity (28) is formed in the slide box (11), a lubricating mechanism is arranged in the cavity (28), the lubricating mechanism comprises an oil storage tank (29) and an oil outlet cylinder (30), the oil storage tank (29) is fixedly arranged at the top of the cavity (28), the oil storage tank (29) is communicated with the outside of the pile driving cylinder (6) through an infusion tube, the oil outlet cylinder (30) is fixedly arranged on the side surface of the cavity (28), the bottom of the left side surface of the oil outlet cylinder (30) is communicated with the bottom of the oil storage tank (29) through a first connecting tube (31), the bottom of the right side surface of the oil outlet cylinder (30) is communicated with the chute (15) through a second connecting tube (32), a first one-way channel (33) which only allows lubricating oil to flow to the oil outlet cylinder (30) is arranged on the first connecting tube (31), and a second one-way channel (32) which only allows lubricating oil to flow out of the oil outlet cylinder (30) is arranged on the second connecting tube (32) (34) The oil outlet cylinder (30) is internally provided with a sealing plate (35) in a sealing and sliding manner, and the top surface of the sealing plate (35) is connected with the side wall of the guide rod (10) through a support rod (36).

4. Pile driver for construction sites according to claim 3, characterised in that the sealing plate (35), the first piston block (17) and the second piston block (24) are provided with rubber rings (37) on their outer walls, and that the rubber rings (37) are provided with annular grooves on their outer sides.

5. The pile driver for the construction site as claimed in claim 1, wherein the clamping mechanism comprises a telescopic rod (38), a friction wheel (39) and a jacket (40), the telescopic rod (38) is fixedly arranged on the inner side wall of the pile driving barrel (6), the jacket (40) is fixedly arranged at the output end of the telescopic rod (38), and the friction wheel (39) is rotatably arranged in the jacket (40).

6. Pile driver for construction sites according to claim 5, characterized in that said telescopic rods (38) are provided in four, four of said telescopic rods (38) being provided in an annular array on the inner side wall of the pile driving barrel (6).

7. Pile driver for construction sites according to claim 1, characterized in that the bottom of the bottom plate (1) is provided with universal wheels (41) at four corners, the universal wheels (41) are provided with brake devices, the top of the bottom plate (1) is provided with weighting blocks (42), and the side of the bottom plate (1) is provided with push-pull handles (43).

8. Pile driver for construction sites according to claim 1, characterised in that a conical rod (44) is fixedly arranged at the bottom of the support (2).