CN215290116U - Pile pulling part for pile pulling machine - Google Patents
Pile pulling part for pile pulling machine Download PDFInfo
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- CN215290116U CN215290116U CN202120789846.3U CN202120789846U CN215290116U CN 215290116 U CN215290116 U CN 215290116U CN 202120789846 U CN202120789846 U CN 202120789846U CN 215290116 U CN215290116 U CN 215290116U
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Abstract
The utility model relates to the technical field of engineering mechanical equipment, in particular to a pile pulling component for a pile pulling machine, which comprises an inner pile pulling cylinder and an outer protective cylinder, wherein the inner pile pulling cylinder is detachably connected with the outer protective cylinder through a connecting structure, so that the separation and connection between the inner pile pulling cylinder and the outer protective cylinder are realized; the connecting structure comprises a pre-connecting piece and a secondary connecting piece, wherein the pre-connecting piece is connected with the inner pile pulling barrel and the outer protective barrel to drill into the position of the old pile, the secondary connecting piece is connected again after the old pile is pulled out, the inner pile pulling barrel and the outer protective barrel realize that the outer protective barrel is in the driving of the inner pile pulling barrel and leaves the pile hole simultaneously. The utility model discloses set the connecting piece to two, reduced debris such as earth in the pile pulling operation to the influence of reconnection operation.
Description
Technical Field
The utility model relates to an engineering machine tool equipment technical field specifically is a pile pulling part for pile extractor.
Background
With the development of economic construction, large and medium-sized cities are in old city reconstruction stages, and with the continuous development of projects such as municipal bridges, subway tunnels and the like, old pile foundations such as original building compact areas, old bridge piles and the like are frequently encountered and pulled out by adopting a conventional method, so that the normal work and life of peripheral pipelines and buildings, even peripheral units and residents can be influenced. According to related investigation, the pile pulling quantity is increased by more than 50% every year at present, and the construction machinery and the construction process for removing the original pile foundation are also new along with the development of the industry.
And (3) pulling out the old pile out of the stratum by adopting a pile extractor and utilizing vibration, static force or hammering action. With the development of technology, the pile extractor is also continuously improved and perfected, for example, a pile extractor for hydraulic engineering, disclosed in 2019, 7, 12.7.5637, the Chinese patent application with the patent publication number CN107142939B, comprises a main body, wherein the main body comprises a support and a bottom plate, the support is fixedly connected to the upper surface of the bottom plate, a pile extracting mechanism is arranged at the middle position inside the support, the pile extracting mechanism comprises an upper fixing seat, a first supporting arm, a second supporting arm and a sliding rail, the first supporting arm and the second supporting arm are movably connected through a rotating shaft, the top of the first supporting arm is mounted at the bottom of the upper fixing seat through the rotating shaft, the bottom of the second supporting arm is movably connected with a lower fixing seat through the rotating shaft, the lower fixing seat is fixedly arranged on the bottom plate, transmission mechanisms are symmetrically arranged on two sides of the support, and comprise mounting plates and hydraulic cylinders, Pneumatic cylinder, step motor, pneumatic cylinder fixed mounting compare the pile extractor before it on the pneumatic cylinder mounting panel, the transmission is more stable, and the traction force that provides is big, and the range of once pile extractor is great, has improved work efficiency, excellent in use effect. Also as the chinese utility model of publication No. CN212688955U specially does benefit to an engineering pile pulling device that the 2020 is published in 7/20, set up the roating seat, the pile pulling piece of being connected with it is located the inside one end of roating seat is equipped with the lug that is circumference array distribution, the inner wall of roating seat install with the stirring piece that the lug contacted, the pile pulling piece is assembled for alleviating the relative effort of applying when pulling out the pile body. This engineering pile pulling device can be when taking out bad stake from the soil layer, applys a transverse force to pile pulling spare, makes to vibrate between pile body and the soil layer and produce the space, reduces the frictional force between pile body and the soil layer, when taking out the pile body in the soil layer simultaneously, and the limiting plate through the buffer column connection exerts the effort to the reset spring of buffer cavity to through reset spring deformation with the effort buffering.
Nevertheless, the existing pile extractor is not only difficult to extract the pile, but also prone to hole collapse and not beneficial to subsequent construction, especially for the old pile under the silt and muddy clay geology in the coastal region.
The construction technology for removing the waste pile by one-time rotary cutting of double full sleeves developed by the Navy et al (construction mechanization, 5 th 2017) is characterized in that an outer full sleeve is detachably connected to the lower end of a power head of a pile cleaning machine, an inner full sleeve is fixedly connected to the lower end of the power head, and a plurality of groups of cutting assemblies capable of stretching and changing amplitude are arranged in a cutting head at the lower end of the inner full sleeve. The cutting tool (alloy steel) cuts off the reinforced concrete of the waste pile in a rotary cutting mode step by step under the hydraulic action; the bent cutting tool supports the waste pile after cutting off the waste pile, so that the waste pile is lifted to the ground along with the inner sleeve under the traction of a winch and the driving of a power head to be discharged. The method can rotationally cut off the steel bars and the concrete of the waste pile at one time, pull out the waste pile along with the inner full casing pipe, and backfill the pile hole under the support of the outer full casing pipe, so that hole collapse is effectively avoided. The outer full sleeve pipe and the inner full sleeve pipe are connected through the buckle type connectors, foreign matters such as soil and stones are usually infiltrated into the buckle gaps in the pile pulling process, so that the separation and connection between the outer full sleeve pipe and the inner full sleeve pipe are not smooth, pile pulling operation is affected, and pile pulling even cannot be achieved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pile pulling device for pile extractor has the function of pile pulling and backfilling the stake hole simultaneously concurrently, and pulls out a pile efficiently, especially pulls out the old stake under coastal area silt and silt matter clay geology.
The utility model adopts the following technical proposal:
a pile pulling component for a pile pulling machine comprises an inner pile pulling barrel and an outer protective barrel, wherein the inner pile pulling barrel is detachably connected with the outer protective barrel through a connecting structure, so that the inner pile pulling barrel is separated from and connected with the outer protective barrel; the connecting structure comprises a pre-connecting piece and a secondary connecting piece, wherein the pre-connecting piece is connected with the inner pile pulling barrel and the outer protective barrel to drill into the position of the old pile, the secondary connecting piece is connected again after the old pile is pulled out, the inner pile pulling barrel and the outer protective barrel realize that the outer protective barrel is in the driving of the inner pile pulling barrel and leaves the pile hole simultaneously.
The double-cylinder structure of pulling out a stake section of thick bamboo and an outer protective tube in setting up in above-mentioned scheme will pull out a stake section of thick bamboo and old stake as a whole and pull out, can guarantee the integrality of pile body, is convenient for once only accomplish and pulls out the work of obstacles, and the outer protective tube is as the dado simultaneously, prevents that the earthwork from collapsing. The power source is generally connected with the inner pile pulling barrel, and after the inner pile pulling barrel is removed with the old pile, the inner pile pulling barrel needs to be put into the outer protective barrel again to be connected, so that the outer protective barrel can be conveniently moved out after the pile pit is filled.
This application will be interior pile pulling section of thick bamboo and the twice connection of outer protective tube realizes with different structures respectively, and the connecting piece realizes connecting promptly before the pile pulling in advance, and the secondary connecting piece pulls out the interior pile pulling section of thick bamboo in the back with being connected of outer protective tube once more at old stake, reduces the current above-mentioned defect that exists of buckle formula connector connection of unitary.
As preferred, the secondary connecting piece is including articulating connect hook and the setting of the metal on the outer wall of interior pile tube are in the magnetic force circle of the outer wall of interior pile tube and the go-between of setting on outer protective barrel outer wall, the go-between with there is the clearance between the outer protective barrel outer wall, power is connected to the magnetic force circle electricity, connect hook packs up under the magnetic force effect of magnetic force circle, and after cutting off the power, magnetic force circle magnetic force disappears, and connect hook opens, hooks the go-between and realizes interior pile tube is connected with outer protective barrel.
The secondary connecting piece is with the help of magnetic force, and after magnetic force disappeared, the connecting hook was opened to hooking the go-between in the ascending process of interior pile pulling section of thick bamboo, realizing reconnection between them, compare buckle formula and connect, this connected mode receives in the stake hole to permeate foreign matter influences such as earth, stone less, connects smoothly.
Preferably, the pre-connecting piece is a locking protrusion arranged on the outer wall of the inner pile pulling barrel, a locking groove is formed in the side wall of the outer protective barrel, and the inner pile pulling barrel is detachably connected with the outer protective barrel through the locking protrusion and the locking groove.
Preferably, the locking protrusion of the pre-connecting piece is arranged at the top of the inner pile pulling barrel, the locking groove is arranged at the top of the outer protective barrel, and the top of the locking groove is provided with a notch.
The setting is at the top, does not receive the influence of foreign matter such as infiltration earth, stone, even make interior pile section of thick bamboo of pulling out with the in-process of separation between the outer protective barrel also can open smoothly.
Preferably, the connecting hook of the secondary connecting piece is arranged in the middle of the inner pulling pile barrel.
Preferably, an annular groove is formed in the outer wall of the inner pile pulling barrel, the magnetic ring is installed in the annular groove, and after the magnetic ring is electrified, the connecting hook is also located in the annular groove under the magnetic attraction effect of the magnetic ring.
Preferably, a hook seat is arranged on the lower wall of the annular groove, and the connecting hook is hinged to the hook seat.
Preferably, the number of the connecting hooks is 4 to 6, and the connecting hooks are evenly distributed around the magnetic ring.
Preferably, the connecting hook includes a hook body connecting portion connected to the hook base, a hook body base portion located above the hook body connecting portion, and a hook tip enlarged portion located above the hook body base portion, and an action surface (i.e., a surface in contact with the magnetic ring) of the hook tip enlarged portion is arc-shaped and is matched with an outer surface of the magnetic ring to increase an attraction surface when the magnetic ring and the hook base portion attract each other, thereby enhancing an attraction effect.
Through implementing above-mentioned technical scheme, the utility model discloses following advantage has:
1. the double-cylinder structure of the inner pile pulling cylinder and the outer protective cylinder is arranged, the pile pulling cylinder and the old pile are pulled out as a whole, the integrity of a pile body can be ensured, the pile pulling and obstacle removing work can be conveniently finished at one time, and meanwhile, the outer protective cylinder serves as a protective wall to prevent earthwork from collapsing;
2. the connecting pieces are arranged to be two, so that the influence of sundries such as soil on reconnection operation in pile pulling operation is reduced.
Drawings
Fig. 1 is a schematic structural view of a pile pulling device according to an embodiment of the present invention;
fig. 2 is a schematic view of an inner pile pulling barrel structure according to an embodiment of the present invention;
fig. 3 is a schematic structural view of an outer protective cylinder according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a connecting hook according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the following specific embodiments.
Example 1
A pile pulling component for a pile pulling machine comprises a steel inner pile pulling barrel 01 and a steel outer protective barrel 02, and is shown in attached figure 1. In the pile pulling process, firstly, the inner cylinder and the outer cylinder are connected, the inner cylinder and the outer cylinder are driven to drill into the ground through the downward pressure and the torque generated by the power head connected with the inner pile pulling cylinder 01 and enter the pile bottom of the waste pile, the waste pile is cut off by using the cutter head on the inner pile pulling cylinder 01, the inner pile pulling cylinder 01 and the waste pile are drilled out simultaneously after the inner pile pulling cylinder 01 is separated from the outer protection cylinder 02, and the outer protection cylinder 02 is left in the soil body. And (4) drilling the inner pile pulling barrel 01 into the soil body again after the waste pile is taken out, and drilling the inner cylinder and the outer cylinder while backfilling. In this process, the inner pile pulling barrel 01 and the outer protective barrel 02 need to be connected, separated and reconnected, and in this embodiment, the inner pile pulling barrel 01 and the outer protective barrel 02 need to be separated and connected through a connecting structure.
The connection structure comprises a pre-connecting piece and a secondary connecting piece, wherein the pre-connecting piece is connected with the inner pile pulling barrel 01 and the outer protective barrel 02 and is drilled into the ground, the secondary connecting piece is connected again after an old pile is pulled out, the inner pile pulling barrel 01 and the outer protective barrel 02 realize that the outer protective barrel 02 is driven by the inner pile pulling barrel 01 and leaves a pile hole simultaneously.
In this embodiment, the structure of the pre-connecting piece is shown in fig. 2, and is a locking protrusion 1-1 disposed on the outer wall of the inner pile pulling barrel 01, a locking groove 1-2 is formed on the side wall of the outer protective barrel 02, and the inner pile pulling barrel 01 and the outer protective barrel 02 are detachably connected through the locking protrusion and the locking groove.
In this embodiment, the structure of the secondary connecting member is as shown in fig. 3, and includes a metal connecting hook 2-1 hinged on the outer wall of the inner pile pulling barrel 01, a magnetic ring 2-2 mounted on the outer wall of the inner pile pulling barrel 01 by a screw, and a connecting ring 2-3 fixed on the outer wall of the outer protective barrel 02 by welding, wherein the connecting ring 2-3 is welded by a metal rod 2-4, and a gap exists between the connecting ring and the outer wall of the outer protective barrel 02, so as to facilitate the hooking of the connecting hook 2-1. Open on the outer wall of drawing pile section of thick bamboo 01 including there is the ring channel, the magnetic ring is installed in the ring channel, 2-2 electricity of magnetic ring are connected the power (not shown in the figure), can draw vertical groove on the lateral wall of pile section of thick bamboo 01 including, through the outer power of vertical groove intercommunication section of thick bamboo. And after the magnetic ring 2-2 is electrified, the connecting hook 2-1 is also positioned in the annular groove under the magnetic attraction action of the magnetic ring 2-2. The lower wall of the annular groove is provided with a hook seat 2-5, the connecting hook 2-1 is connected with the hook seat 2-5 through a shaft pin, when the magnetic force disappears, the connecting hook 2-1 falls down around the shaft pin due to the action of gravity, and meanwhile, due to the limiting action of the annular groove and the hook seat 2-5, the connecting hook 2-1 is in a horizontal state or a state close to the horizontal state.
The magnetic ring 2-2 is communicated with a power supply, the connecting hook 2-1 is retracted under the magnetic action of the magnetic ring 2-2, after the power supply is cut off, the magnetic force of the magnetic ring 2-2 disappears, the connecting hook 2-1 is opened, and the connecting ring is hooked to realize the connection of the inner pile pulling barrel 01 and the outer protective barrel 02. The number of the connecting hooks is determined according to the diameter of the pile pulling barrel, generally 4-6 connecting hooks are arranged, 4 connecting hooks are arranged in the scheme, and the connecting hooks are uniformly distributed on the outer wall of the pile pulling barrel 01.
The secondary connecting piece is with the help of magnetic force, and after magnetic force disappeared, the connecting hook was opened to hooking the go-between in the ascending process of interior pile pulling section of thick bamboo, realizing reconnection between them, compare buckle formula and connect, this connected mode receives in the stake hole to permeate foreign matter influences such as earth, stone less, connects smoothly.
More preferably, the pre-connector is arranged at the top of the double tube, and the top of the locking notch groove is provided with a notch. The connecting hook, the magnetic ring and the like of the secondary connecting piece are arranged in the middle of the inner pile pulling barrel, the connecting ring is arranged on the upper portion of the outer protective barrel, and the connecting ring is located above the connecting hook after the connecting hook is opened, so that hooking between the connecting hook and the inner pile pulling barrel can be conveniently achieved in the lifting process of the inner pile pulling barrel.
Example 2
On the basis of embodiment 1, the structure of the connecting hook is optimized as follows:
as shown in fig. 4, the connecting hook 2-1 includes a hook body connecting portion 2-11 connected to the hook base 2-5, a hook body base portion 2-12 located above the hook body connecting portion 2-11, and a hook tip enlarged portion 2-13 located above the hook body base portion 2-12, wherein the action surface of the hook tip enlarged portion 2-13 is enlarged, the attraction surface when the magnetic loop and the connecting hook attract each other is increased, and the attraction effect is enhanced. In another preferred scheme, the action surface of the hook tip enlarged part 2-13 is arc-shaped and is matched with the outer surface of the magnetic ring 2-2.
Claims (10)
1. A pile pulling component for a pile pulling machine comprises an inner pile pulling barrel and an outer protective barrel, wherein the inner pile pulling barrel is detachably connected with the outer protective barrel through a connecting structure, so that the inner pile pulling barrel is separated from and connected with the outer protective barrel; the connecting structure is characterized by comprising a pre-connecting piece and a secondary connecting piece.
2. The pile pulling component for the pile pulling machine as claimed in claim 1, wherein the secondary connecting member comprises a connecting hook hinged on the outer wall of the inner pile pulling barrel, a magnetic ring arranged on the outer wall of the inner pile pulling barrel and a connecting ring arranged on the outer wall of the outer protective barrel, and the magnetic ring is externally connected with a power supply.
3. The pile extracting component for the pile extractor as claimed in claim 1 or 2, wherein the pre-connecting member is a locking protrusion disposed on an outer wall of the inner pile extracting barrel, a locking groove is formed on a side wall of the outer protective barrel, and the inner pile extracting barrel and the outer protective barrel are detachably connected through the locking protrusion and the locking groove.
4. The pile pulling component for the pile pulling machine as claimed in claim 2, wherein the outer wall of the inner pile pulling barrel is provided with an annular groove, the magnetic ring is installed in the annular groove, and after the magnetic ring is electrified, the connecting hook is also located in the annular groove under the magnetic attraction effect of the magnetic ring.
5. A pile extractor assembly as claimed in claim 4, wherein a hook seat is provided on the lower wall of the annular groove, and the connecting hook is hinged to the hook seat.
6. A pile extractor assembly as claimed in claim 4, wherein there are between 4 and 6 coupling hooks and are evenly distributed around the magnetic ring.
7. A pile extractor member for a pile extractor according to claim 4, wherein said coupling hook comprises a hook body coupling portion coupled to said hook base, a hook body base portion located above said hook body coupling portion, and a hook tip enlarged portion located above said hook body base portion.
8. The pile extractor as claimed in claim 7, wherein the enlarged portion of the hook tip has an arc-shaped active surface.
9. A pile extractor according to claim 3, wherein the locking protrusion of the pre-connector is arranged on the top of the inner pile extractor, the locking groove is arranged on the top of the outer protective cylinder, and the top of the locking groove is provided with a notch.
10. A pile extractor assembly as claimed in claim 2, wherein said secondary connector coupling hook is provided at the middle of said inner pile extractor tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120789846.3U CN215290116U (en) | 2021-04-19 | 2021-04-19 | Pile pulling part for pile pulling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120789846.3U CN215290116U (en) | 2021-04-19 | 2021-04-19 | Pile pulling part for pile pulling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215290116U true CN215290116U (en) | 2021-12-24 |
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ID=79536903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120789846.3U Active CN215290116U (en) | 2021-04-19 | 2021-04-19 | Pile pulling part for pile pulling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215290116U (en) |
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2021
- 2021-04-19 CN CN202120789846.3U patent/CN215290116U/en active Active
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