CN108442375B - Pile clamping device and hydraulic pile planting machine - Google Patents
Pile clamping device and hydraulic pile planting machine Download PDFInfo
- Publication number
- CN108442375B CN108442375B CN201810403272.4A CN201810403272A CN108442375B CN 108442375 B CN108442375 B CN 108442375B CN 201810403272 A CN201810403272 A CN 201810403272A CN 108442375 B CN108442375 B CN 108442375B
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- pile
- clamping
- clamping device
- clamping jaw
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- 230000005540 biological transmission Effects 0.000 claims abstract description 38
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 9
- 230000033001 locomotion Effects 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008093 supporting effect Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/20—Placing by pressure or pulling power
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention provides a pile clamping device and a hydraulic pile planting machine, wherein the pile clamping device comprises a clamping jaw assembly, a linear driving assembly for driving the clamping jaw assembly to linearly move, and a slewing mechanism for driving the clamping jaw assembly to rotationally move, and the slewing mechanism comprises a slewing bearing respectively connected with the linear driving assembly and the clamping jaw assembly, and also comprises a rotary driving assembly which is in transmission connection with the slewing bearing and drives the slewing bearing to rotate. According to the pile clamping device and the hydraulic pile planting machine comprising the pile clamping device, the slewing bearing is arranged in the slewing mechanism, so that the pile clamping device and the hydraulic pile planting machine are suitable for occasions with larger loads.
Description
Technical Field
The invention belongs to the technical field of hydraulic pile planting machines, and particularly relates to a pile clamping device and a hydraulic pile planting machine comprising the pile clamping device.
Background
The hydraulic pile driver is one kind of static pile driver capable of piling in water, inclined embankment or narrow place and is used widely in estuary construction, river management, soft soil piling, building strengthening, bridge pier maintaining and other places. The pile clamping device of the hydraulic pile planting machine is used for clamping and pulling up the steel sheet pile pressed into the ground, and the next steel sheet pile can be pressed into the ground by utilizing the reaction force of the steel sheet pile to the pile clamping device.
During the continuous insertion of steel sheet piles, the jaw assemblies in the pile clamping device need to be rotated to adjust their angle. In the existing pile clamping device, a clamping jaw assembly is driven in a worm and gear transmission mode. However, the output torque of the worm and gear transmission is smaller, and the worm and gear transmission is not suitable for heavy-load occasions.
Disclosure of Invention
The invention aims to provide a pile clamping device, which solves the technical problems that in the prior art, the output torque of the worm and gear transmission is smaller, and the clamping jaw assembly is not suitable for heavy-load occasions due to the fact that the clamping jaw assembly is driven to rotate.
In order to achieve the above purpose, the invention adopts the following technical scheme: the pile clamping device comprises a clamping jaw assembly, a linear driving assembly used for driving the clamping jaw assembly to linearly move, and a slewing mechanism used for driving the clamping jaw assembly to rotationally move, wherein the slewing mechanism comprises slewing bearings respectively connected with the linear driving assembly and the clamping jaw assembly, and further comprises a rotary driving assembly which is in transmission connection with the slewing bearings and drives the slewing bearings to rotate.
Further, the slewing bearing comprises an inner ring and an outer ring which are connected in a mutually rotating manner, the inner ring is connected with the linear driving assembly, and the outer ring is fixedly connected with the clamping jaw assembly and in transmission connection with the rotary driving assembly.
Further, the rotary driving assembly comprises a transmission gear, and a plurality of transmission teeth capable of being meshed with the transmission gear are arranged on the outer side of the outer ring.
Further, the motor further comprises a connecting seat, wherein two sides of the connecting seat are fixedly connected with the linear driving assembly and the inner ring respectively.
Further, the connecting seat comprises a first mounting part, the rotary driving assembly further comprises a motor connected with the transmission gear, and the motor is fixed on the first mounting part.
Further, the first installation part is provided with an avoidance hole for the output shaft of the motor to pass through, and the output shaft of the motor is connected with the transmission gear.
Further, the connecting seat further comprises a second installation part, and the linear driving assembly comprises a pile pressing oil cylinder fixed on the second installation part.
Further, the clamping jaw assembly comprises a clamping jaw fixedly connected with the outer ring, a clamping groove is formed in the clamping jaw, the clamping jaw assembly further comprises a first friction block and a second friction block which are arranged on two opposite sides of the clamping groove, and a clamping oil cylinder which is connected with the second friction block and used for moving the second friction block.
Further, the pile clamping device comprises two linear driving assemblies, and the clamping jaw assemblies are arranged between the two linear driving assemblies.
The pile clamping device provided by the invention has the beneficial effects that: compared with the prior art, in the pile clamping device, the slewing mechanism for driving the clamping jaw assembly to rotate is provided with the slewing bearing connected with the clamping jaw assembly, and the slewing bearing can bear larger radial load and axial load, so that the pile clamping device is suitable for occasions with larger load.
The invention also provides a hydraulic pile planting machine, which comprises the pile clamping device and has the beneficial effects that: the pile clamping device is provided with the slewing bearing connected with the clamping jaw assembly, and the slewing bearing can bear larger radial load and axial load, so that the pile clamping device is suitable for occasions with larger load.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a perspective structure diagram of a pile clamping device according to an embodiment of the present invention;
FIG. 2 is a partial cross-sectional view of a pile clamping device provided by an embodiment of the present invention;
FIG. 3 is a perspective view of a slewing bearing according to an embodiment of the present invention;
FIG. 4 is a perspective view of a connector according to an embodiment of the present invention;
Fig. 5 is a partial enlarged view of a in fig. 2.
Wherein, each reference sign in the figure:
1-a linear drive assembly; 11-pile pressing oil cylinders; 2-connecting seats; 21-a first mounting portion; 210-avoiding holes; 22-a second mounting portion; 220-mounting holes; 3-a slewing mechanism; 31-slewing bearing; 311-inner ring; 312-outer ring; 3121-drive teeth; 32-a rotary drive assembly; 321-a motor; 322-a transmission gear; a 4-jaw assembly; 41-a first friction block; 42-a second friction block; 43-clamping jaw; 430-clamping groove; 44-baffle; 45-clamping an oil cylinder; 451-head; 452-stem; 453-cylinder; 46-retainer ring.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1 and 2 together, a pile clamping device provided by the present invention will now be described. The pile clamping device comprises a clamping jaw assembly 4, a linear driving assembly 1 and a rotary mechanism 3, wherein the linear driving assembly 1 is used for driving the clamping jaw assembly 4 to conduct linear motion, namely driving the clamping jaw assembly 4 to ascend or descend, and the rotary mechanism 3 is used for driving the clamping jaw assembly 4 to conduct rotary motion, so that the angle of the clamping jaw assembly 4 is convenient to adjust, and steel sheet piles are grabbed. The slewing mechanism 3 comprises a slewing bearing 31 and a rotary driving assembly 32, the slewing bearing 31 is respectively connected with the linear driving assembly 1 and the clamping jaw assembly 4, the rotary driving assembly 32 is in transmission connection with the slewing bearing 31, and the rotary driving assembly 32 can drive the slewing bearing 31 to rotate so as to drive the clamping jaw assembly 4 connected with the slewing bearing 31 to rotate.
Compared with the prior art, in the pile clamping device, the slewing mechanism 3 for driving the clamping jaw assembly 4 to rotate is provided with the slewing bearing 31 connected with the clamping jaw assembly 4, and the slewing bearing 31 can bear larger radial load and axial load, so that the pile clamping device is suitable for occasions with larger load.
Further, referring to fig. 1 to 3, as an embodiment of the pile clamping device provided by the present invention, the slewing bearing 31 includes an inner ring 311 and an outer ring 312 rotatably connected to each other. Specifically, balls may be provided between the inner ring 311 and the outer ring 312 to form the roller type slewing bearing 31. Preferably, the slewing bearing 31 is a three-row roller slewing bearing 31, and comprises three layers of inner rings 311 and outer rings 312 which are axially distributed, and balls are arranged between each layer of inner rings 311 and outer rings 312. The slewing bearing 31 can bear axial load, radial load and overturning moment, has a firm structure and is suitable for heavy machinery. The inner ring 311 is connected with the linear driving assembly 1, and the outer ring 312 is fixedly connected with the clamping jaw assembly 4 and is in transmission connection with the rotary driving assembly 32. The outer ring 312 of the slewing bearing 31 is rotated by the rotation driving assembly 32, thereby driving the jaw assembly 4 fixed with the outer ring 312 to rotate, while the inner ring 311 of the slewing bearing 31 is kept stationary. Of course, the inner ring 311 may also be fixedly connected to the jaw assembly 4 and drivingly connected to the rotary drive assembly 32, and the outer ring 312 may be connected to the linear drive assembly 1.
Further, referring to fig. 1 to 3, as an embodiment of the pile clamping device provided by the present invention, the rotary driving assembly 32 includes a transmission gear 322, a plurality of transmission teeth 3121 are disposed on the outer side of the outer ring 312, and the transmission teeth 3121 can mesh with the transmission gear 322 to form a transmission connection between the transmission gear 322 and the outer ring 312. Specifically, the diameter of the transmission gear 322 is smaller than that of the outer ring 312, the transmission gear 322 is a driving wheel, the outer ring 312 is a driven wheel, the transmission ratio of the transmission gear 322 to the outer ring 312 is greater than one, and the angular velocity of the outer ring 312 is smaller than that of the transmission gear 322, so that the rotation angle of the outer ring 312 can be conveniently adjusted.
Further, referring to fig. 1, fig. 2 and fig. 4, as a specific embodiment of the pile clamping device provided by the present invention, the pile clamping device further includes a connection seat 2, where the connection seat 2 is fixedly connected with the linear driving assembly 1 and the inner ring 311 respectively. Specifically, the linear driving assembly 1 and the slewing bearing 31 are provided on opposite sides of the connecting seat 2. The connecting seat 2 is arranged on the first side, which is convenient for connecting the linear driving component 1 with the clamping jaw component 4 and driving the clamping jaw component 4 to move up and down under the action of the linear driving component 1, and on the second side, the structural strength of the pile clamping device is enhanced.
Further, referring to fig. 1,2 and 4, as a specific embodiment of the pile clamping device provided by the present invention, the connecting seat 2 includes a first mounting portion 21, the rotary driving assembly 32 includes a motor 321, the motor 321 is connected to a transmission gear 322 and is used for driving the transmission gear 322, and the motor 321 is fixed on the first mounting portion 21. Preferably, the motor 321 and the first mounting portion 21 are connected to each other by a fastener. Specifically, the first mounting portion 21 is disposed at the edge of the bottom end of the connecting seat 2, the motor 321 is fixedly connected above the first mounting portion 21, and the first mounting portion 21 has a supporting function on the motor 321. Of course the rotary drive assembly 32 may also include a brake for stopping the rotation of the jaw assembly 4, a planetary reducer for reducing the angular velocity of the transfer gear 322, etc.
Further, referring to fig. 4, as a specific embodiment of the pile clamping device provided by the present invention, the first mounting portion 21 is provided with a avoiding hole 210 through which an output shaft of the motor 321 passes, and meanwhile, the output shaft of the motor 321 is connected with the transmission gear 322. Specifically, the drive gear 322 is disposed below the first mounting portion 21 to facilitate engagement with the drive teeth 3121 on the outer race 312. The motor 321 is a power unit for driving the transmission gear 322, and of course, other power units such as a hydraulic motor may be used for driving the transmission gear 322.
Further, referring to fig. 2 and 4, as a specific embodiment of the pile clamping device provided by the present invention, the connecting base 2 further includes a second mounting portion 22, and the first mounting portion 21 and the second mounting portion 22 may be respectively disposed on two opposite sides of the connecting base 2. The linear driving assembly 1 comprises a pile pressing oil cylinder 11 fixed on the second mounting part 22, and the pile pressing oil cylinder 11 can drive the connecting seat 2 and the clamping jaw assembly 4 to perform linear motion. Specifically, the second mounting portion 22 is provided with a mounting hole 220, and the pile pressing cylinder 11 is disposed in the mounting hole 220 in a penetrating manner.
Further, referring to fig. 2 and 5, as a specific embodiment of the pile clamping device provided by the present invention, the clamping jaw assembly 4 includes a clamping jaw 43 fixedly connected with the outer ring 312, a clamping groove 430 is formed on the clamping jaw 43, the clamping groove 430 may be formed at the bottom of the clamping jaw 43, a first friction block 41 and a second friction block 42 are further disposed on opposite sides of the clamping groove 430, a clamping cylinder 45 for pushing the first friction block 41 is connected to the first friction block 41, and under the action of the clamping cylinder 45, the second friction block 42 moves towards the first friction block 41 to clamp the steel sheet pile.
Further, referring to fig. 5, as a specific embodiment of the pile clamping device provided by the present invention, the first friction block 41 is accommodated in the clamping jaw 43, and a first gap S 1 is formed between the clamping jaw 43 and the first friction block 41, so that the clamping cylinder 45 can push the first friction block 41 toward the second friction block 42. One end of the clamping cylinder 45 extends into the first friction block 41, and a second gap S 2 is formed between the clamping cylinder and the first friction block 41. The first gap S 1 is smaller than the second gap S 2. When the second friction block 42 and the first friction block 41 clamp the steel sheet pile and pull out the steel sheet pile upwards, the acting force of the steel sheet to the first friction block 41 can indirectly act on the clamping jaw 43, so that the clamping cylinder 45 is prevented from bearing radial load, and the service life of the clamping cylinder 45 is prolonged.
Further, referring to fig. 5, as an embodiment of the pile clamping device provided by the present invention, the clamping cylinder 45 includes a head 451 extending into the first friction block 41, a cylinder 453 provided in the clamping jaw 43, and a rod 452 having both ends connected to the head 451 and the cylinder 453. The clamping jaw assembly 4 comprises a retainer ring 46 for fixing the head 451 and the first friction block 41, the retainer ring 46 is sleeved on the rod 452, the inner diameter of the retainer ring 46 is the same as that of the rod 452, and one side of the retainer ring 46 is simultaneously abutted against the head 451 and the first friction block 41. The retainer ring 46 is fixedly connected with the first friction block 41. Preferably, the retainer ring 46 and the first friction block 41 are fixedly connected by a screw or bolt. Specifically, the retainer ring 46 includes two arcuate stops (not shown) that are spaced apart from each other to facilitate the installation and removal of the clamp cylinder 45. The provision of the retainer ring 46 provides a fixed connection between the first friction block 41 and the head 451 and facilitates locating the relative position between the first friction block 41 and the head 451.
Further, referring to fig. 1 and 2, as a specific embodiment of the pile clamping device provided by the present invention, a baffle 44 for shielding the cylinder 453 is further provided on one side of the cylinder 453, and the baffle 44 abuts against the cylinder 453 and is fixedly connected with the clamping jaw 43. The baffle 44 has a supporting effect on the cylinder 453, and can shield the cylinder 453, so that dust is prevented from entering the clamping jaw 43, and the inside of the clamping jaw 43 is ensured to be clean. The stop 44 and the clamping jaw 43 are preferably fixedly connected by means of screws or bolts.
Further, referring to fig. 1 and 2, as a specific embodiment of the pile clamping device provided by the present invention, the pile clamping device includes two linear driving mechanisms 1, and a clamping jaw assembly 4 is disposed between the two linear driving mechanisms 1. Thus, when the two linear driving mechanisms 1 drive the clamping jaw assemblies 4 to move up and down, the clamping jaw assemblies 4 move more stably.
The invention also provides a hydraulic pile planting machine, which comprises the pile clamping device.
The hydraulic pile planting machine provided by the invention adopts the pile clamping device, and the pile clamping device is internally provided with the slewing bearing 31 connected with the clamping jaw assembly 4, so that the slewing bearing 31 can bear larger radial load and axial load, and the pile clamping device is suitable for occasions with larger load.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (8)
1. Pile clamping device, including clamping jaw subassembly, be used for driving clamping jaw subassembly rectilinear movement's sharp drive assembly and be used for driving clamping jaw subassembly rotary motion's rotation mechanism, its characterized in that: the slewing mechanism comprises a slewing bearing which is respectively connected with the linear driving assembly and the clamping jaw assembly, and a rotary driving assembly which is in transmission connection with the slewing bearing and drives the slewing bearing to rotate; the slewing bearing comprises an inner ring and an outer ring which are connected with each other in a rotating way, the inner ring is connected with the linear driving assembly, and the outer ring is fixedly connected with the clamping jaw assembly and is in transmission connection with the rotary driving assembly; the clamping jaw assembly comprises clamping jaws fixedly connected with the outer ring, clamping grooves are formed in the clamping jaws, the clamping jaw assembly further comprises first friction blocks and second friction blocks which are arranged on two opposite sides of the clamping grooves, clamping cylinders used for pushing the clamping blocks are connected to the first friction blocks, the second friction blocks move towards the first friction blocks under the action of the clamping cylinders to clamp steel sheet piles, the first friction blocks are contained in the clamping jaws, first gaps (S 1) are formed between the clamping jaws, one ends of the clamping cylinders extend into the first friction blocks, second gaps (S 2) are formed between the clamping cylinders and the first friction blocks, and the first gaps (S 1) are smaller than the second gaps (S 2).
2. Pile clamping device according to claim 1, characterised in that: the rotary driving assembly comprises a transmission gear, and a plurality of transmission teeth capable of being meshed with the transmission gear are arranged on the outer side of the outer ring.
3. Pile clamping device according to claim 2, characterised in that: the connecting seat is fixedly connected with the linear driving assembly and the inner ring at two sides respectively.
4. A pile clamping apparatus according to claim 3, characterised in that: the connecting seat comprises a first installation part, the rotary driving assembly further comprises a motor connected with the transmission gear, and the motor is fixed on the first installation part.
5. Pile clamping device according to claim 4, characterised in that: the first installation part is provided with an avoidance hole for the output shaft of the motor to pass through, and the output shaft of the motor is connected with the transmission gear.
6. Pile clamping device according to claim 4, characterised in that: the connecting seat further comprises a second installation part, and the linear driving assembly comprises a pile pressing oil cylinder fixed on the second installation part.
7. Pile clamping device according to any of claims 1-6, characterised in that: the pile clamping device comprises two linear driving assemblies, and the clamping jaw assemblies are arranged between the two linear driving assemblies.
8. Hydraulic pile planting machine, its characterized in that: a pile clamping device comprising any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810403272.4A CN108442375B (en) | 2018-04-28 | 2018-04-28 | Pile clamping device and hydraulic pile planting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810403272.4A CN108442375B (en) | 2018-04-28 | 2018-04-28 | Pile clamping device and hydraulic pile planting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108442375A CN108442375A (en) | 2018-08-24 |
| CN108442375B true CN108442375B (en) | 2024-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810403272.4A Active CN108442375B (en) | 2018-04-28 | 2018-04-28 | Pile clamping device and hydraulic pile planting machine |
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| Country | Link |
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| CN (1) | CN108442375B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02150404U (en) * | 1989-05-20 | 1990-12-26 | ||
| JP2000064282A (en) * | 1998-08-18 | 2000-02-29 | Komatsu Est Corp | Steel pipe pile driving device, clamp unit of steel pipe, and columnar ground improving device |
| EP2561951A1 (en) * | 2011-08-24 | 2013-02-27 | Wartmann Technologie AG | Device and method for manufacturing a butt joint between rotation-symmetrical bodies with local forming of the abutting zone of the held bodies |
| CN104947670A (en) * | 2015-06-11 | 2015-09-30 | 鞍山紫竹工程设备制造有限公司 | Lifting and clamping mechanism of hydraulic pile planting machine and pile planting method |
| CN205475229U (en) * | 2016-01-26 | 2016-08-17 | 舒展 | Stake undercarriage claw mechanism presses |
| CN107034886A (en) * | 2017-05-02 | 2017-08-11 | 武汉电力设备厂 | A kind of hydraulic static plants stake complete set of equipments and plants pile work method |
| CN208183738U (en) * | 2018-04-28 | 2018-12-04 | 中电建水环境治理技术有限公司 | Clip pile device and hydraulic pile-grafting machine |
-
2018
- 2018-04-28 CN CN201810403272.4A patent/CN108442375B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02150404U (en) * | 1989-05-20 | 1990-12-26 | ||
| JP2000064282A (en) * | 1998-08-18 | 2000-02-29 | Komatsu Est Corp | Steel pipe pile driving device, clamp unit of steel pipe, and columnar ground improving device |
| EP2561951A1 (en) * | 2011-08-24 | 2013-02-27 | Wartmann Technologie AG | Device and method for manufacturing a butt joint between rotation-symmetrical bodies with local forming of the abutting zone of the held bodies |
| CN104947670A (en) * | 2015-06-11 | 2015-09-30 | 鞍山紫竹工程设备制造有限公司 | Lifting and clamping mechanism of hydraulic pile planting machine and pile planting method |
| CN205475229U (en) * | 2016-01-26 | 2016-08-17 | 舒展 | Stake undercarriage claw mechanism presses |
| CN107034886A (en) * | 2017-05-02 | 2017-08-11 | 武汉电力设备厂 | A kind of hydraulic static plants stake complete set of equipments and plants pile work method |
| CN208183738U (en) * | 2018-04-28 | 2018-12-04 | 中电建水环境治理技术有限公司 | Clip pile device and hydraulic pile-grafting machine |
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| CN108442375A (en) | 2018-08-24 |
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