CN212248238U - Pile driver is used in bridge construction - Google Patents
Pile driver is used in bridge construction Download PDFInfo
- Publication number
- CN212248238U CN212248238U CN202020184654.5U CN202020184654U CN212248238U CN 212248238 U CN212248238 U CN 212248238U CN 202020184654 U CN202020184654 U CN 202020184654U CN 212248238 U CN212248238 U CN 212248238U
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- pile
- friction
- precast
- barrel
- driver
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Abstract
The utility model discloses a pile driver for bridge construction relates to bridge construction pile driver equipment technical field, the characterized in that passes through the locating plate and fixes the precast pile between the pile frame, the fixed high-frequency vibration machine of chuck is passed through at the top of precast pile, it props up the pile frame to promote the bracing piece through hydraulic means, make the perpendicular fixed connection of pile frame throw into subaerial of position in the stake hole, start the high-frequency vibration machine, utilize its high-frequency vibration, with high acceleration vibration pile body, the pile body is given with the vertical vibration that machinery produced, lead to the soil body structure around the stake to change because of vibrating, intensity reduces, soil body liquefaction around the pile body, reduce the frictional resistance of pile side and soil body, hoist the pile hammer through the hoist engine again, the impact force through pile hammer free fall is that the precast pile sinks into the soil. The utility model discloses the advantage is with high-frequency vibration, high acceleration vibrating pile body have improved the work efficiency of pile driver greatly, reduces the size of pile driver for the pile driver easily removes, and convenient repetition carries out pile work.
Description
Technical Field
The utility model relates to a heavy engineering machine tool field specifically is a pile driver is used in bridge construction.
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, the rear part of the pile frame is provided with a winch for lifting a pile and a pile hammer, the front part of the pile frame is provided with a guide frame consisting of two guide rods for controlling the pile driving direction so that the pile can accurately penetrate into the stratum according to the designed direction, the basic technical parameters of the pile driver are the weight of an impact part, the impact kinetic energy and the impact frequency, and the pile hammer can be divided into a drop hammer, a steam hammer, a diesel hammer, a hydraulic hammer and the like according to the power source of the movement. As for the pile driver on the current market, the shock absorption function of the pile driver is not strong, huge vibration can be sensed during pile driving, people feel uncomfortable, the pile driver can only apply pressure to one pile column simultaneously, the pile driving speed is very slow, and the efficiency is not high.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a pile driver for bridge construction.
In order to achieve the purpose, the invention adopts the following technical scheme that the device comprises a winch, a stay rope, a pile frame, a pulley, a bottom plate, a precast pile, a positioning plate, a fixing block, a friction barrel, a push rod, a chuck, a high-frequency vibrator, a hammering platform, a sliding block, a pile hammer, a connecting rope and a pile top fixing claw.
The winding engine is fixed on the pile driver, the rotary disc of the winding engine is fixedly connected to the top end of the stay rope, the other end of the stay rope is wound around a pulley in the pulley block and fixedly connected to the top end of the pile hammer, and the pulley block is fixedly connected to the cross beam of the pile frame.
The pile frame comprises a crossbeam and two pole settings, and the pole setting inboard is equipped with perpendicular spout, and sliding connection has hammering platform and slider in the spout, the bottom surface fixedly connected with annular bottom plate of pile frame, the inboard of slider is through connecting the lateral wall of rope connection pile hammer.
The bottom of the hammering platform is fixed on the outer wall of the friction barrel through a push rod.
The push rod is total two, and the push rod slope sets up, and the precast pile between be equipped with 5 degrees contained angles, the push rod is fixed on the friction bucket, and the friction bucket cover is outside the precast pile, and the friction bucket is worn out to the tip of precast pile.
Two positioning plates are arranged below the friction barrel, and the two positioning plates are arranged up and down; the locating plate with spout sliding connection, the center of locating plate is equipped with circular through-hole, the precast pile passes two through-holes in proper order for control precast pile's the direction of driving into.
The precast pile is a concrete precast pile, one end of the precast pile, penetrating out of the friction barrel, is clamped by a pile top fixing claw of the chuck, and the top of the chuck is connected with the bottom of the high-frequency vibration machine.
Furthermore, the outer wall upper segment of precast pile is equipped with the friction section, improves the frictional force of friction bucket to the precast pile, prevents that the friction bucket from slipping under the impact force of pile hammer.
Further, the friction barrel comprises a barrel body and a hollow circular truncated cone type friction block, the barrel body is a cavity cylinder with a fixed block arranged on the outer side, the fixed block is connected with the bottom of the push rod, the cavity inside the barrel body is a circular truncated cone type cavity, the inner wall of the cavity is in contact with the outer wall of the hollow circular truncated cone type friction block (the friction block is tightly plugged on the inner wall of the cavity), and an opening is formed in the top of the hollow circular truncated cone type friction block.
Further, the stand outside of pile frame articulates there is the bracing piece, supports fixedly through the bracing piece.
Further, the chuck adopts a mechanical transmission chuck which is produced by the company Limited liability of the great and expensive ring and is made into a ring ball.
Compared with the prior art, the invention has the beneficial effects.
The precast pile is fixed between pile frames through a positioning plate, a high-frequency vibrator is fixed at the top of the precast pile through a chuck, a support rod is pushed through a hydraulic device to prop up the pile frame, the pile frame is vertically and fixedly connected to the ground at a pile hole driving position, the high-frequency vibrator is started, the pile body is vibrated at high acceleration by utilizing high-frequency vibration of the high-frequency vibrator, the vertical vibration generated by machinery is transmitted to the pile body, the soil body structure around the pile is changed due to vibration, the strength is reduced, the soil body around the pile body is liquefied, the friction resistance between the pile side and the soil body is reduced, then the pile hammer is hoisted through a hoisting machine, the impact force of the free falling body of the pile hammer is that the precast pile sinks into the soil, the pile hammer is lifted and falls at intervals, the effect of hammering of the pile hammer is improved due to the vibration of the high-frequency vibrator, the hammering frequency of the pile hammer is improved through the reduction of the length of the, the size of the pile driver is reduced, so that the pile driver is easy to move, and pile driving work can be conveniently and repeatedly performed.
Drawings
The invention is further described with reference to the following figures and detailed description. The scope of the invention is not limited to the following expressions.
Fig. 1 is a schematic structural view of a pile driver for bridge construction.
Fig. 2 is a schematic sectional view of a friction barrel a-a in the pile driver for bridge construction.
Fig. 3 is a schematic structural view of the interior of the friction barrel in the pile driver for bridge construction.
Fig. 4 is a schematic view of the connection between the chuck and the pile top fixing claw.
Fig. 5 is a schematic view of the sliding block sliding inside the pile frame.
In the figure, a winch 1, a stay rope 2, a pile frame 3, a pulley block 4, a bottom plate 5, a precast pile 6, a positioning plate 7, a fixing block 8, a friction barrel 9, a push rod 10, a chuck 11, a high-frequency vibrator 12, a hammering platform 13, a slide block 14, a pile hammer 15, a connecting rope 16, a pile top fixing claw 17, a barrel body 9-1 and a hollow circular truncated cone type friction block 9-2.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1-5, in the embodiment of the present invention, a pile driver for bridge construction, includes hoist 1, cable 2, pile frame 3, pulley block 4, bottom plate 5, precast pile 6, locating plate 7, fixed block 8, friction bucket 9, push rod 10, chuck 11, high-frequency vibration machine 12, hammering platform 13, slider 14 and pile hammer 15, hoist 1 is fixed on the pile driver, fixedly connected with cable 2's top on hoist 1's the carousel, and pulley fixed connection in pulley block 4 is walked around to cable 2's the other end is on the top of pile hammer 15, lifts pile hammer 15 through pulley block 4 to relieve, make the weight do the free fall motion, through the impact force with precast pile 6 injection stratum.
The pulley block 4 is fixedly connected to a cross beam on the pile frame 3, the pile frame 3 is composed of a cross beam and two vertical rods, vertical sliding grooves are formed in the inner sides of the vertical rods, and a hammering platform 13 and a sliding block 14 are connected to the sliding grooves in a sliding mode.
The bottom surface of the pile frame 3 is fixedly connected with an annular bottom plate 5, which is used for ensuring the stability of the pile frame 3 when being fixed on the bottom surface and preventing the pile frame 3 from inclining.
The inner side of the sliding block 14 is connected with the side wall of the pile hammer 15 through a connecting rope 16, so that the pile hammer 15 is prevented from deviating and wasting kinetic energy.
The bottom of the hammering platform 13 is fixedly connected in a fixing hole in the outer wall of the friction barrel through a push rod 10, and two sides of the hammering platform are slidably connected in grooves in the side wall of the pile frame 3.
The number of the push rods 10 is two, the push rods 10 are obliquely arranged, and a five-degree included angle is formed between each push rod 10 and the corresponding precast pile 6, so that after the pile hammer 15 impacts the hammering platform 13, impact force is applied to the friction barrel 9 through the push rods 10 to exert vertical downward force and vertical force on the side face of the corresponding precast pile 6.
The friction barrel 9 is composed of a barrel body 9-1 and a hollow circular truncated cone type friction block 9-2, the barrel body 9-1 is a hollow cylinder with a fixed block 8 arranged on the outer side, the fixed block 8 is connected with the bottom of the push rod 10, the barrel body 9-1 is internally provided with a circular truncated cone type cavity, the inner wall of the cavity is in contact with the outer wall of the hollow circular truncated cone type friction block 9-2, and the top of the hollow circular truncated cone type friction block 9-2 is provided with an opening. For gripping the friction barrel 9 and getting tighter and tighter with the pre-cast pile 6 when the friction barrel 9 is impacted.
Two positioning plates 7 are slidably connected in a chute at the lower section of the stand column of the pile frame 3, a circular through hole is formed in the center of each positioning plate 7, the through hole is slidably connected to the outer wall of the precast pile 6, and the driving direction of the precast pile 6 is controlled through the positioning plates 7.
Precast pile 6 is concrete precast pile 6, and 4 pile bolck 17 of outer wall top installation are fixed through chuck 11 downside at the outer wall top, and chuck 11 upside fixed connection is in the bottom of high frequency vibration machine 12, through wire electric connection power.
Preferably, the upper section of the outer wall of the precast pile 6 is provided with a friction section, so that the friction force of the friction barrel 9 on the precast pile 6 is improved, and the friction barrel 9 is prevented from slipping under the impact force of the pile hammer 15.
Preferably, the stand outside of pile frame 3 articulates there is the bracing piece, supports fixedly through the bracing piece.
The utility model discloses a theory of operation is: the precast pile 6 is fixed between the pile frames 3 through the positioning plate 7, the top of the precast pile 6 is fixed with the high-frequency vibration machine 12 through the chuck 11, the pile frame 3 is supported by pushing the support rod through the hydraulic device, so that the pile frame is vertically and fixedly connected on the ground of a pile hole driving position, the high-frequency vibration machine 12 is started, the pile body is vibrated at high acceleration by utilizing the high-frequency vibration, the vertical vibration generated by machinery is transmitted to the pile body, the soil body structure around the pile is changed due to vibration, the strength is reduced, the soil body around the pile body is liquefied, the friction resistance between the pile side and the soil body is reduced, the pile hammer 15 is lifted through the hoisting machine 1, the impact force of the free falling body of the pile hammer 15 is that the precast pile 6 sinks into the soil, the interval between the lifting and the falling of the pile hammer 15 is caused by the vibration of the high-frequency vibration machine 12, the hammering effect of the pile hammer 15 is improved, and, the hammering frequency of the pile hammer 15 is improved, the working efficiency of the pile driver is greatly improved, and the size of the pile driver is reduced, so that the pile driver is easy to move, and pile driving work can be carried out repeatedly.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (5)
1. A pile driver for bridge construction comprises a winch (1), a stay cable (2), a pile frame (3), a pulley, a bottom plate (5), a precast pile (6), a positioning plate (7), a fixing block (8), a friction barrel (9), a push rod (10), a chuck (11), a high-frequency vibrator (12), a hammering platform (13), a slide block (14), a pile hammer (15), a connecting rope (16) and a pile top fixing claw (17); it is characterized in that the preparation method is characterized in that,
the winding machine (1) is fixed on the pile driver, a rotary table of the winding machine (1) is fixedly connected to the top end of the stay cable (2), the other end of the stay cable (2) is fixedly connected to the top end of the pile hammer by bypassing a pulley in the pulley block (4), and the pulley block (4) is fixedly connected to a cross beam of the pile frame (3);
the pile frame (3) is composed of a cross beam and two vertical rods, vertical sliding grooves are formed in the inner sides of the vertical rods, a hammering platform (13) and a sliding block (14) are connected in the sliding grooves in a sliding mode, the bottom surface of the pile frame (3) is fixedly connected with an annular bottom plate (5), and the inner sides of the sliding blocks (14) are connected with the side walls of a pile hammer (15) through connecting ropes (16);
the bottom of the hammering platform (13) is fixed on the outer wall of the friction barrel (9) through a push rod (10);
the number of the push rods (10) is two, the push rods (10) are obliquely arranged, an included angle of 5 degrees is formed between each push rod and the corresponding precast pile (6), the push rods (10) are fixed on the friction barrel (9), the friction barrel (9) is sleeved outside the precast pile (6), and the end portion of the precast pile (6) penetrates out of the friction barrel (9);
two positioning plates (7) are arranged below the friction barrel (9), and the two positioning plates are arranged up and down; the positioning plate is connected with the sliding groove in a sliding mode, a circular through hole is formed in the center of the positioning plate (7), and the precast pile (6) sequentially penetrates through the two through holes and is used for controlling the driving direction of the precast pile (6);
precast pile (6) are concrete precast pile, and the one end that friction bucket (9) were worn out in precast pile (6) is pressed from both sides tightly by pile bolck (17) of chuck (11), and chuck (11) top links to each other with the high-frequency vibration machine bottom.
2. The pile driver for bridge construction according to claim 1, wherein: the outer wall upper segment of precast pile (6) is equipped with the friction section, improves the frictional force of friction bucket (9) to precast pile (6), prevents that friction bucket (9) from slipping under the impact force of pile hammer (15).
3. The pile driver for bridge construction according to claim 1, wherein: the friction barrel (9) is composed of a barrel body (9-1) and a hollow circular truncated cone type friction block (9-2), the barrel body (9-1) is a hollow cylinder with a fixed block (8) arranged on the outer side, the fixed block (8) is connected with the bottom of the push rod (10), the cavity inside the barrel body (9-1) is a circular truncated cone type cavity, and the inner wall of the cavity of the barrel body (9-1) is in close contact with the outer wall of the hollow circular truncated cone type friction block (9-2).
4. The pile driver for bridge construction according to claim 1, wherein: the stand outside of pile frame (3) articulates there is the bracing piece, supports fixedly through the bracing piece.
5. The pile driver for bridge construction according to claim 1, wherein: the chuck (11) is a mechanical transmission chuck which is produced by the Ohio-Haoyang Ring group Limited liability company and is made of a ring ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020184654.5U CN212248238U (en) | 2020-02-19 | 2020-02-19 | Pile driver is used in bridge construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020184654.5U CN212248238U (en) | 2020-02-19 | 2020-02-19 | Pile driver is used in bridge construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212248238U true CN212248238U (en) | 2020-12-29 |
Family
ID=73990503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020184654.5U Expired - Fee Related CN212248238U (en) | 2020-02-19 | 2020-02-19 | Pile driver is used in bridge construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212248238U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115219507A (en) * | 2022-07-18 | 2022-10-21 | 兰州工业学院 | Health monitoring method applied to bridge and tunnel structure maintenance |
| CN116335134A (en) * | 2023-02-23 | 2023-06-27 | 中建八局第三建设有限公司 | Construction method of soft and rigid composite pile |
-
2020
- 2020-02-19 CN CN202020184654.5U patent/CN212248238U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115219507A (en) * | 2022-07-18 | 2022-10-21 | 兰州工业学院 | Health monitoring method applied to bridge and tunnel structure maintenance |
| CN115219507B (en) * | 2022-07-18 | 2023-04-07 | 兰州工业学院 | Health monitoring method applied to bridge and tunnel structure maintenance |
| CN116335134A (en) * | 2023-02-23 | 2023-06-27 | 中建八局第三建设有限公司 | Construction method of soft and rigid composite pile |
| CN116335134B (en) * | 2023-02-23 | 2023-09-19 | 中建八局第三建设有限公司 | Construction method of soft and rigid composite pile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201229 Termination date: 20220219 |