CN109930600B - Upper clamping mechanism of pile planting machine - Google Patents
Upper clamping mechanism of pile planting machine Download PDFInfo
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- CN109930600B CN109930600B CN201711364323.9A CN201711364323A CN109930600B CN 109930600 B CN109930600 B CN 109930600B CN 201711364323 A CN201711364323 A CN 201711364323A CN 109930600 B CN109930600 B CN 109930600B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 14
- 238000010276 construction Methods 0.000 claims abstract description 15
- 230000009471 action Effects 0.000 claims description 4
- 230000008602 contraction Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 abstract description 5
- 238000005553 drilling Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
An upper clamping mechanism of a pile planting machine comprises a working platform with a flange inner ring and a fixed sleeve, a plurality of clamping wedges, a clamping ring, an upper clamping cylinder, a connecting plate and a bottom frame with a sleeve; the flange inner ring is positioned at the geometric center through hole of the working platform; the fixed sleeves are symmetrically arranged at four corners of the lower end of the working platform, and upper hinging seats are arranged in the fixed sleeves; the sleeves are symmetrically arranged at four corners of the upper end of the underframe and are sleeved in the four fixed sleeves in an up-down movable mode respectively; the upper clamping oil cylinders are respectively arranged in inner cavities formed by the inner walls of the fixed sleeve and the sleeve, and are respectively connected with the upper hinging seat and the lower hinging seat; the clamping wedges are uniformly arranged along the circumferential direction of the flange inner ring, the upper end of the clamping wedges are hinged with one end of a connecting plate, and the other end of the connecting plate is hinged with the flange inner ring; the clamping ring is fixedly arranged at the through hole of the underframe, and dovetail grooves corresponding to the clamping wedge blocks are arranged on the inner wall of the clamping ring; the invention is convenient for butt joint of the implanted piles, improves the construction precision of the implanted piles and reduces the construction cost.
Description
Technical Field
The invention relates to a pile planting machine, in particular to an upper clamping mechanism of the pile planting machine for underground foundation construction or improvement.
Background
With the continuous promotion of foundation engineering such as urban construction, underground pipe gallery and old city transformation, a novel pile planting construction method integrating various pile foundation technologies such as drilling, deep stirring, reaming and prefabrication is gradually applied and promoted, and the construction method has the advantages of no vibration, low noise, good pile forming quality, high pile bearing capacity, less mud discharge and the like, and effectively overcomes the defects of the current soft soil foundation pile foundation. In the prior art, a special pile planting method is generally adopted, a drilling machine is arranged on a pile frame upright post, after the drilling machine finishes drilling, deep stirring and reaming, configured cement paste is injected through a grouting pipeline, a drill rod is lifted up and down to repeatedly stir so as to keep the cement paste at the bottom of a pre-drilled hole uniform, and finally the drill rod is pulled out completely. The pile-planting construction is generally started after cement slurry is injected for 2 hours, and at present, various precast piles are required to be moved to a pre-drilled hole by means of hoisting equipment, and various pile bodies are slowly planted by utilizing the self weight of the pile-planting. The pile body is positioned by utilizing the positioning detection ruler, and the verticality of the pile body of the implanted pile is detected by using two theodolites which are 90 degrees with each other, and the general deviation is about 30mm, so that the verticality precision of the implanted pile body is difficult to ensure. If the length of the pile implant body does not meet the technical requirement and needs to be connected in an additional mode, generally, a bolt butt joint or welding mode can be adopted, when the pile is connected in a welding mode, a guide hoop is generally arranged at the pile head of the implanted pile body so that the pile connected with the implanted pile body above is positioned, the dislocation error of the upper pile body and the lower pile body after the welding is finished is generally between 5m and 10m of working platform m, and the requirements on the vertical precision and the straightness precision of the implanted pile body are difficult to ensure. In addition, during pile body implantation operation, construction enterprises are required to be provided with large-scale hoisting equipment for hoisting the pile bodies into place, so that construction cost is greatly increased. In addition, the embedded pile is connected without a special working platform, and is generally operated beside a pre-drilled hole, the surrounding sludge field condition is poor, the operation safety of constructors is difficult to ensure, the technical requirement of the embedded pile is met, and certain potential safety hazard exists.
Disclosure of Invention
According to the defects in the prior art, the invention provides the upper clamping mechanism of the pile planting machine for improving the construction of the soft soil foundation pile foundation, which is convenient for the butt joint of the pile body of the pile to be planted, effectively improves the vertical precision of the pile to be planted, ensures the construction technology and safe operation and reduces the construction cost.
The invention is realized by the following technical scheme:
an upper clamping mechanism of a pile planting machine comprises a working platform with a flange inner ring and a fixed sleeve, a plurality of clamping wedges, a clamping ring, an upper clamping cylinder, a connecting plate and a bottom frame with a sleeve;
the method is characterized in that:
the geometric center of the working platform is provided with a through hole, and the flange inner ring is arranged in the through hole; the four fixing sleeves are symmetrically arranged along the geometric center of the working platform and are respectively positioned at four corners of the lower end of the working platform, and an upper hinging seat is arranged in each fixing sleeve; the geometric center of the underframe is provided with a lower through hole; the four sleeves are symmetrically arranged along the geometric center of the underframe and are respectively positioned at four corners of the upper end of the underframe, and a lower hinging seat is arranged in each sleeve and is sleeved in the holes of the four fixing sleeves in an up-down movable mode respectively; the upper clamping oil cylinders are respectively arranged in inner cavities formed by the inner walls of the fixed sleeve and the sleeve, and the cylinder ends and the piston rod ends of the upper clamping oil cylinders are respectively connected with the upper hinging seat and the lower hinging seat; the clamping rings are fixedly arranged at through holes in the geometric center of the underframe, and dovetail grooves corresponding to the clamping wedges are formed in the inner walls of the clamping rings; the clamping wedges are respectively arranged in dovetail grooves on the inner wall of the clamping ring through back inclined planes of the clamping wedges, the upper ends of the clamping wedges are respectively hinged with one end of a connecting plate through a pin shaft, and the other ends of the connecting plates are respectively hinged with the upper end part of the inner wall of the flange inner ring through pin shafts; therefore, the clamping ring can move downwards or upwards through the expansion or contraction action of the upper clamping oil cylinder, so that the clamping wedge blocks are driven to loosen or clamp the pile body of the implanted pile.
According to the invention, the inclined plane angle of the back of the clamping wedge block and the inclined plane angle of each dovetail groove on the inner wall of the clamping ring are equal, and are alpha, wherein alpha=5-10 degrees.
The invention can also be that the number of the dovetail grooves on the inner wall of the clamping ring is 3, 4 or 6, and the number of the clamping wedges is 3, 4 or 6 corresponding to the number of the clamping wedges.
The invention can also be that the front surface of the clamping wedge block is provided with a cushion block so as to adapt to pile planting construction of various different pile diameters.
Drawings
The upper clamping mechanism of the pile planting machine of the present invention is further described below with reference to the accompanying drawings and examples:
FIG. 1 is a schematic diagram of an upper clamping mechanism of a pile planter according to the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic structural view of a working platform in an upper clamping mechanism of the pile planting machine according to the present invention;
FIG. 4 is an enlarged view of part C of FIG. 1;
fig. 5 is a partial enlarged view of the portion D in fig. 1.
Detailed Description
As shown in fig. 1 to 5, an upper clamping mechanism of a pile planter comprises a working platform 11 with a flange inner ring 112 and a fixed sleeve 116, a plurality of clamping wedges 15, a clamping ring 12, an upper clamping cylinder 16, a connecting plate 17 and a bottom frame 13 with a sleeve 161; wherein:
the geometric center of the working platform 11 is provided with a through hole, and the flange inner ring 112 is arranged in the through hole; four fixing sleeves 116 are symmetrically arranged along the geometric center of the working platform 11 and are respectively positioned at four corners of the lower end of the working platform, and an upper hinging seat 162 is arranged in each fixing sleeve 116; the geometric center of the underframe 13 is provided with a lower through hole; the four sleeves 161 are symmetrically arranged along the geometric center of the underframe 13 and are respectively positioned at four corners of the upper end of the underframe, and a lower hinging seat 163 is arranged in each sleeve 161 and is sleeved in the holes of the four fixing sleeves 116 in an up-down movable mode; the upper clamping cylinder 16 has four groups, which are respectively arranged in the inner cavities formed by the inner walls of the fixed sleeve 116 and the sleeve 161, and the cylinder end and the piston rod end of the upper clamping cylinder are respectively connected with the upper hinging seat 162 and the lower hinging seat 163; the clamping wedges 15 are elongated with inclination at the back, are uniformly arranged along the circumferential direction of the flange inner ring 112, the clamping ring 12 is fixedly arranged at a through hole positioned at the geometric center of the underframe 13, and dovetail grooves 121 corresponding to the clamping wedges 15 are arranged on the inner wall of the clamping ring; the clamping wedges 15 are respectively arranged in dovetail grooves 121 on the inner wall of the clamping ring 12 through back inclined planes thereof, the upper ends of the clamping wedges are respectively hinged with one end of a connecting plate 17 through pin shafts, and the other ends of the connecting plates 17 are respectively hinged with the upper end parts of the inner wall of the flange inner ring 112 through pin shafts; the inclined plane angle of the back of the clamping wedge 15 and the inclined plane angle of each dovetail groove 121 on the inner wall of the clamping ring 12 are equal, and are alpha, and alpha=5-10 degrees; the number of the dovetail grooves 121 on the inner wall of the clamping ring 12 can be 3, 4 or 6, and the number of the clamping wedges 15 is also 3, 4 or 6 corresponding to the number; the front surface of the clamping wedge 15 is provided with a cushion block 153 so as to adapt to pile planting construction of various different pile diameters. In this way, the clamping ring 12 can move downwards or upwards through the expansion or contraction action of the upper clamping cylinder 16, so that the plurality of clamping wedges 15 are driven to release or clamp the pile body of the implanted pile.
When the implanted pile needs to be connected, the pile implanting machine is operated to a pre-drilling position, the implanted pile body is hung into a through hole in the center of the working platform 11 by using hoisting equipment, the implanted pile body is slowly put down until the implanted pile body enters the pre-drilling hole and the working platform 11 is exposed at the pile head, four groups of upper clamping cylinders 16 are operated by a hydraulic system to synchronously shrink piston rods, a plurality of clamping wedges 15 positioned in dovetail grooves 121 of the clamping rings 12 move upwards, and cushion blocks 151 arranged on the front surfaces of the clamping wedges 15 tightly clamp the outer peripheral surface of the implanted pile body so as to prevent the implanted pile body from sliding downwards due to the action of gravity; like this, operating personnel just can carry out the butt joint of upper and lower pile body on work platform 11, generally can adopt bolt butt joint or welding mode, in order to ensure the straightness accuracy of upper and lower steel-pipe pile body pile extension, can use the uide bushing suit to carry out the accurate location after connect the steel-pipe pile end down, and the overhead connection steel-pipe pile of handling is located this uide bushing, and operating personnel carries out upper and lower steel-pipe pile body concatenation on work platform 11, and the error is controllable below 1.5mm, effectively ensures implantation stake operation safety and pile quality and reaches the design requirement.
Claims (4)
1. An upper clamping mechanism of a pile planting machine comprises a working platform (11) with a flange inner ring (112) and a fixed sleeve (116), a plurality of clamping wedges (15), a clamping ring (12), an upper clamping cylinder (16), a connecting plate (17) and a bottom frame (13) with a sleeve (161);
the method is characterized in that:
the geometric center of the working platform (11) is provided with a through hole, and the through hole is internally provided with the flange inner ring (112); four fixing sleeves (116) are symmetrically arranged along the geometric center of the working platform (11) and are respectively positioned at four corners of the lower end of the working platform, and an upper hinging seat (162) is arranged in each fixing sleeve (116); the geometric center of the underframe (13) is provided with a lower through hole; the four sleeves (161) are symmetrically arranged along the geometric center of the underframe (13) and are respectively positioned at four corners of the upper end of the underframe, and a lower hinging seat (163) is arranged in each sleeve (161) and is sleeved in the holes of the four fixing sleeves (116) in an up-down movable mode respectively; the upper clamping cylinder (16) is provided with four groups, which are respectively arranged in the inner cavities formed by the inner walls of the fixed sleeve (116) and the sleeve (161), and the cylinder barrel end and the piston rod end of the upper clamping cylinder are respectively connected with the upper hinging seat (162) and the lower hinging seat (163); the clamping wedges (15) are long-strip-shaped bodies with inclination at the back parts, the clamping wedges are uniformly distributed along the circumferential direction of the flange inner ring (112), the clamping ring (12) is fixedly arranged at a through hole positioned at the geometric center of the underframe (13), and dovetail grooves (121) corresponding to the clamping wedges (15) are arranged on the inner walls of the clamping wedges; the clamping wedges (15) are respectively arranged in dovetail grooves (121) on the inner wall of the clamping ring (12) through back inclined planes of the clamping wedges, the upper ends of the clamping wedges are respectively hinged with one end of the connecting plate (17) through pin shafts, and the other ends of the connecting plate (17) are respectively hinged with the upper end parts of the inner wall of the flange inner ring (112) through pin shafts; in this way, the clamping ring (12) can move downwards or upwards through the expansion or contraction action of the upper clamping oil cylinder (16), so that the plurality of clamping wedges (15) are driven to release or clamp the implanted pile body.
2. The upper clamping mechanism of a pile planting machine according to claim 1, characterized in that the angle of the inclined surface of the back of the clamping wedge (15) and the angle of the inclined surface of each dovetail groove (121) on the inner wall of the clamping ring (12) are equal, and are alpha, and alpha = 5-10 degrees.
3. The upper clamping mechanism of the pile planting machine according to claim 1, wherein 3, 4 or 6 dovetail grooves (121) on the inner wall of the clamping ring (12) are arranged, and the clamping wedges (15) are also arranged to be 3, 4 or 6 corresponding to the dovetail grooves.
4. The upper clamping mechanism of the pile planting machine according to claim 1, wherein the front surface of the clamping wedge block (15) is provided with a cushion block (153) so as to adapt to pile planting construction of various pile diameters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711364323.9A CN109930600B (en) | 2017-12-18 | 2017-12-18 | Upper clamping mechanism of pile planting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711364323.9A CN109930600B (en) | 2017-12-18 | 2017-12-18 | Upper clamping mechanism of pile planting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109930600A CN109930600A (en) | 2019-06-25 |
| CN109930600B true CN109930600B (en) | 2024-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711364323.9A Active CN109930600B (en) | 2017-12-18 | 2017-12-18 | Upper clamping mechanism of pile planting machine |
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| Country | Link |
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| CN (1) | CN109930600B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113046518A (en) * | 2021-03-16 | 2021-06-29 | 攀钢集团攀枝花钢铁研究院有限公司 | Molten iron desulfurization equipment and quick connecting device for rotary desulfurization spray gun of molten iron desulfurization equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003003468A (en) * | 2001-06-21 | 2003-01-08 | Nippon Steel Corp | Rotating pile penetrating equipment |
| JP3605406B1 (en) * | 2003-10-02 | 2004-12-22 | 土佐機械工業株式会社 | Clamping device for steel pipe pile |
| CN202039364U (en) * | 2011-04-18 | 2011-11-16 | 湖北毅力机械有限公司 | Wedge clamp type clamping mechanism of pile machine |
| CN202249827U (en) * | 2011-07-30 | 2012-05-30 | 徐州鑫景泰重工机械制造有限公司 | Casing-pipe clamping device for full-casing-pipe full-slewing drilling machine |
| CN103195357A (en) * | 2013-04-19 | 2013-07-10 | 郑州宇通重工有限公司 | Full-casing type special drilling machine |
| CN106284333A (en) * | 2016-08-19 | 2017-01-04 | 济南轨道交通集团有限公司 | A kind of quickly location pile extension platform and pile extension method |
| CN208039253U (en) * | 2017-12-18 | 2018-11-02 | 上海工程机械厂有限公司 | A kind of upper clamping mechanism of pile-grafting machine |
-
2017
- 2017-12-18 CN CN201711364323.9A patent/CN109930600B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003003468A (en) * | 2001-06-21 | 2003-01-08 | Nippon Steel Corp | Rotating pile penetrating equipment |
| JP3605406B1 (en) * | 2003-10-02 | 2004-12-22 | 土佐機械工業株式会社 | Clamping device for steel pipe pile |
| CN202039364U (en) * | 2011-04-18 | 2011-11-16 | 湖北毅力机械有限公司 | Wedge clamp type clamping mechanism of pile machine |
| CN202249827U (en) * | 2011-07-30 | 2012-05-30 | 徐州鑫景泰重工机械制造有限公司 | Casing-pipe clamping device for full-casing-pipe full-slewing drilling machine |
| CN103195357A (en) * | 2013-04-19 | 2013-07-10 | 郑州宇通重工有限公司 | Full-casing type special drilling machine |
| CN106284333A (en) * | 2016-08-19 | 2017-01-04 | 济南轨道交通集团有限公司 | A kind of quickly location pile extension platform and pile extension method |
| CN208039253U (en) * | 2017-12-18 | 2018-11-02 | 上海工程机械厂有限公司 | A kind of upper clamping mechanism of pile-grafting machine |
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| Publication number | Publication date |
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| CN109930600A (en) | 2019-06-25 |
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