CN201411694Y - Clamping device for static-pressure pile-driving machine - Google Patents
Clamping device for static-pressure pile-driving machine Download PDFInfo
- Publication number
- CN201411694Y CN201411694Y CN2009203049902U CN200920304990U CN201411694Y CN 201411694 Y CN201411694 Y CN 201411694Y CN 2009203049902 U CN2009203049902 U CN 2009203049902U CN 200920304990 U CN200920304990 U CN 200920304990U CN 201411694 Y CN201411694 Y CN 201411694Y
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- China
- Prior art keywords
- pile body
- clamping
- hydraulic
- hydraulic cylinder
- clamping device
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- Expired - Lifetime
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- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The utility model discloses a clamping device for a static-pressure pile-driving machine. The clamping device comprises a cramping apparatus, a hydraulic driving lever and a hydraulic cylinder, wherein, the hydraulic driving lever connected with the hydraulic cylinder is linked with the cramping apparatus through a hinge, and the cramping apparatus consists of at least an upper set of clamping straps and a lower set of clamping straps, each set of clamping straps consisting of 4-8 clamping straps with circular arc sections that can holds a pile body after being combined, the back side of eachclamping strap at the two sides of the hydraulic driving lever is fixed with a hard spring of which the other end is fixed on the hydraulic cylinder body.According to the utility model, situations ofbad alignment or crushing of a pile body caused by disproportion stress on the holding surfaces of the cramping apparatus in the process of holding the pile body can be prevented effectively.
Description
Technical field
The utility model relates to a kind of pile driver clamping device, especially relates to a kind of floating type static pressure pile driver clamping device.
Background technology
In recent years, in fields such as building, dykes and dams, highway bridge, the application of pile driver more and more widely.And static pressure is embraced that the formula pile driver relies on that its volume is little, working stability, noiselessness, the advantage that do not disturb residents, is subjected to people's special concern.
It mainly is as power with hydraulic means that existing static pressure is embraced the formula pile driver, frictional force effect by anchor clamps and pile body surface is squeezed into ground with stake, in this process,, make clamping surface the phenomenon of unbalance stress often occur because can there be certain error in pile body and chucking surface structure.Again because the hydraulic means applied pressure is quite big, very little error just may cause the pile body local compression uneven and by conquassation, pile body is scrapped or mechanical property seriously descends, and brings about great losses.
The utility model content
The purpose of this utility model is to overcome existing static pressure to embrace the above-mentioned defective that formula pile driver anchor clamps exist, and provides a kind of clamping stability height, the stressed uniform floating type static pressure pile driver clamping device of pile body.
The purpose of this utility model is achieved through the following technical solutions: it comprises anchor clamps, hydraulic-driven bar, hydraulic cylinder, the hydraulic-driven bar that links to each other with hydraulic cylinder links by hinge and anchor clamps, it is characterized in that: described anchor clamps are made of at least two group clamping plate up and down, every group of clamping plate are that the clamping plate that circular arc can be embraced pile body are altogether formed by 48 sections, the both sides of each clamping plate back side hydraulic-driven bar respectively are fixed with a hard spring, and the other end of described hard spring is fixed on the hydraulic cylinder body.
The clamping face that clamping plate contact with pile body surface should be provided with anti-skidding striped, is used to increase the frictional force of clamping plate clamping face and pile body contact surface.
Described anti-skidding striped is preferably waveform, because the anti-skidding striped of waveform is when increasing clamping face and pile body surface rubbing action, the pressure that can disperse clamping face and pile body surface, make pile body surface stress distribution undulate, can improve the ability of pile body surface opposing conquassation like this, to a certain extent.
The utility model can prevent effectively because the pile body surface out-of-flatness, anchor clamps and pile body surface loose contact, and unbalance stress, and the pile body that produces is by conquassation or align inaccurate phenomenon generation.
Description of drawings
Fig. 1 is the floating type pile driver clamping device operating principle of a utility model schematic diagram.
Fig. 2 is the floating type pile driver clamping device example structure of a utility model schematic diagram.
Fig. 3 is a clamping device anchor clamps clamping face expansion shape schematic diagram shown in Figure 2.
Among the figure: 1, clamping face; 2, anchor clamps; 3, hinge; 4, hydraulic-driven bar; 5, hydraulic cylinder; 6, hard spring; 7, pile body; 8, the anti-skidding striped of waveform
The specific embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described in further detail.
With reference to accompanying drawing, present embodiment comprises anchor clamps 2, hydraulic-driven bar 4, hydraulic cylinder 5, hard spring 6, the hydraulic-driven bar 4 that links to each other with hydraulic cylinder 5 links by hinge 3 and anchor clamps 2, anchor clamps 2 are made of two groups of clamping plate up and down, it is the clamping plate that circular arc can be embraced pile body 7 altogether that every group of clamping plate include four sections, the clamping face 1 that clamping plate contact with pile body 7 is provided with the anti-skidding striped 8 of waveform, the both sides of each clamping plate back side hydraulic-driven bar 4 respectively are fixed with a hard spring 6, and the other end of hard spring 6 is fixed on the cylinder body of hydraulic cylinder 5; Anchor clamps 2 can play effective positioning action to pile body 7 on the one hand, can increase total contact area on the other hand, increase the frictional force between clamping face 1 and pile body 7 surfaces, under equal conditions, reduced requirement, also reduced the probability of hydraulic cylinder 5 pressure releases simultaneously single hydraulic cylinder 5; Hydraulic cylinder 5 provides clamping force; Hard spring 6 has the function of adjusting anchor clamps clamping direction, and is even and stable to guarantee the clamping face 1 and the pressure on pile body 7 surfaces.
During work, hydraulic oil pumping system pumps hydraulic oil in hydraulic cylinder 5, hydraulic cylinder 5 internal pressures raise, under motive force F and hinge 3 transfer functions, hydraulic-driven bar 4 travels forward, the clamping face 1 that promotes anchor clamps 2 near and compress pile body 7, after chucking power reaches setting, hydraulic oil pumping system fuel cut-off makes anchor clamps 2 keep stable holding power F1, F2, and pile driver relies on the clamping face 1 of anchor clamps 2 and the frictional force on pile body 7 surfaces that pile body 7 is pressed into ground; When pile body 7 surface irregularities, anchor clamps 2 clamping faces 1 and pile body 7 surperficial loose contacts, during pressure imbalance, anchor clamps 2 can rotate around hinge 3 under hard spring 6 active force f1, f2 and clamping face 1 two ends reaction force, adjust self-position, guarantee that the clamping face 1 and the pressure on pile body 7 surfaces are even and stable.The anti-skidding striped 8 of anchor clamps 2 clamping faces, 1 equally distributed waveform, one side can be disperseed the stress on pile body 7 surfaces, makes pile body surface stress distribution undulate, like this, can improve the ability of pile body surface opposing conquassation to a certain extent; Can increase the roughness of clamping face on the other hand, making it increases with the pile body surface contact friction force.
The utility model can prevent effectively because the pile body surface out-of-flatness, anchor clamps and pile body surface loose contact, and unbalance stress, and the pile body that produces is by conquassation or align inaccurate phenomenon generation.
Claims (3)
1. static pressure pile driver clamping device, comprise anchor clamps, hydraulic-driven bar, hydraulic cylinder, the hydraulic-driven bar that links to each other with hydraulic cylinder links by hinge and anchor clamps, it is characterized in that: described anchor clamps are made of at least two group clamping plate up and down, every group of clamping plate are that the clamping plate that circular arc can be embraced pile body are altogether formed by 4-8 piece section, the both sides of each clamping plate back side hydraulic-driven bar respectively are fixed with a hard spring, and the other end of described hard spring is fixed on the hydraulic cylinder body.
2. according to the described static pressure pile driver clamping device of claim 1, it is characterized in that: the clamping face that clamping plate contact with pile body surface is provided with anti-skidding striped.
3. according to the described static pressure pile driver clamping device of claim 2, it is characterized in that: anti-skidding striped is a waveform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203049902U CN201411694Y (en) | 2009-06-24 | 2009-06-24 | Clamping device for static-pressure pile-driving machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203049902U CN201411694Y (en) | 2009-06-24 | 2009-06-24 | Clamping device for static-pressure pile-driving machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201411694Y true CN201411694Y (en) | 2010-02-24 |
Family
ID=41713581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203049902U Expired - Lifetime CN201411694Y (en) | 2009-06-24 | 2009-06-24 | Clamping device for static-pressure pile-driving machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201411694Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102939421A (en) * | 2010-05-27 | 2013-02-20 | 王志财 | Swivelling pile clamp |
-
2009
- 2009-06-24 CN CN2009203049902U patent/CN201411694Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102939421A (en) * | 2010-05-27 | 2013-02-20 | 王志财 | Swivelling pile clamp |
| CN102939421B (en) * | 2010-05-27 | 2016-01-20 | 王志财 | Be used for clamping the pile clamp assemblies of pile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100224 Effective date of abandoning: 20090624 |