CN201050064Y - Pile pressing machine bidirectional oil cylinder wedge type pile clamping mechanism - Google Patents
Pile pressing machine bidirectional oil cylinder wedge type pile clamping mechanism Download PDFInfo
- Publication number
- CN201050064Y CN201050064Y CNU2007200630961U CN200720063096U CN201050064Y CN 201050064 Y CN201050064 Y CN 201050064Y CN U2007200630961 U CNU2007200630961 U CN U2007200630961U CN 200720063096 U CN200720063096 U CN 200720063096U CN 201050064 Y CN201050064 Y CN 201050064Y
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- Prior art keywords
- voussoir
- pile
- wedge
- driven
- cylinder
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Abstract
The utility model discloses a pile driver bidirectional oil cylinder wedge-type pile clamping mechanism. At least four groups of bidirectional oil cylinders (8) are axially and symmetrically embedded in the cavity of a hollow cylinder (7) of a box (1). The heads of the upper and the lower piston rods of the bidirectional oil cylinders are respectively connected with a drive wedge (5) whose annular surface is contacted with the inner surface of the hollow cylinder (7). A clamping jaw (9) which is provided with a driven wedge (4) and is corresponding to the bidirectional oil cylinders (8) is arranged on the box (1). The inclined surface of the drive wedge (5) is contacted with the inclined surface of the driven wedge (4) to construct a pair of shifting pairs. A guide hole (6) cooperating with a guide rod (3) arranged on the box (1) is drilled along the axial direction on the drive wedge (5). A backdraught device is connected with the driven wedge (4). The utility model is a pile driver bidirectional oil cylinder wedge-type pile clamping mechanism which has simple structure, stable and reliable clamp and even pile clamping force, can realize multi-point clamping and can simultaneously drive the two clamping wedges with even force and constant velocity.
Description
Technical field
The utility model relates to a kind of Static pressure pile driver Pile holding mechanism, particularly relates to a kind of pile press two-way cylinder Wedge-type Pile holding mechanism.
Background technology
Pile press is a kind ofly with Pile holding mechanism preformed pile to be clamped, thereby utilize the piling oil cylinder to press down Pile holding mechanism then preformed pile is pressed into a kind of piling machinery of ground, and Pile holding mechanism is the critical component of pile press.Existing pile press Pile holding mechanism can be divided into two types on overall technology: a kind of be oil cylinder to the top formula, the oil cylinder that it distributes by the circumference radial symmetric directly drives jaw and clamps pile body.The weak point of this structure is: jaw inconvenience is made eight and more, generally is four, and the folder stake area of monolithic jaw is big, when pile body surface size error is big, the real contact area of jaw and pile body is little, causes stress raisers easily during the folder stake, makes the pile body breakage.Thereby another kind utilizes axial oil cylinder to promote wedge block and drives jaw clamping pile body, and this structure can realize the multiple spot clamping, but each bite promptly needs an oil cylinder, causes the Pile holding mechanism oil cylinder numerous, and the pipeline complexity has increased fault rate and manufacturing cost.
The utility model content
Technical problem to be solved in the utility model provides a kind of simple in structure, clamping is reliable and stable, pile locking force evenly distributes, and is easy to realize the multiple spot clamping, and one oil cylinder can all power, constant speed drive two pile press two-way cylinder Wedge-type Pile holding mechanisms that clamp voussoir simultaneously.
In order to solve the problems of the technologies described above, the pile press two-way cylinder Wedge-type Pile holding mechanism that the utility model provides, it comprises casing, the inner chamber of hollow cylinder of described casing in, axially symmetry is embedded with at least four group two-way cylinders, the piston rod head up and down of described two-way cylinder is connected with the active voussoir that its anchor ring contacts with the inner surface of described hollow cylinder respectively, on described casing, be provided with the clamping jaw corresponding with described two-way cylinder, described clamping jaw is provided with the driven voussoir corresponding with described active voussoir, described active voussoir skewed surface contacts the moving sets that partners with described driven voussoir skewed surface, described active voussoir is drilled with pilot hole vertically, described pilot hole cooperates the motion guide of realizing voussoir with guide rod on being installed in casing, and described driven voussoir is connected with returning device.
Described returning device is that described active voussoir is equipped with the return bolt, and described return bolt head cooperates with return gathering sill on the described driven voussoir.
The arc radius of described active voussoir anchor ring is less than the inner surface radius of the hollow cylinder that supports it, described clamping jaw, active voussoir, driven voussoir can be done limited swing at the inner surface of described hollow cylinder, guarantee that jaw contacts with comprehensive flexibility of pile body.
Adopt the pile press two-way cylinder Wedge-type Pile holding mechanism of technique scheme, owing to adopt two-way cylinder, can guarantee that piston rod stretches out speed and thrust equates, can eliminate because asynchronous additional force that causes of piston rod movement and the uneven pile locking force of generation, make the chucking power equalization of clamping jaw, avoid nip stress to concentrate and cause pile body to damage; Simultaneously, owing to adopt the voussoir force-increasing mechanism, the less thrust of oil cylinder output promptly can produce bigger pile locking force on the one hand, utilizes the self-locking action of voussoir on the other hand, can stably keep pile locking force, thereby avoids folder stake slippage in the piling process; Moreover owing to adopt two-way cylinder output, two voussoirs of a hydraulic oil cylinder driving can reduce half oil cylinder quantity, make structure more compact, and manufacturing cost is lower.
In sum, the utility model is a kind of simple in structure, and clamping is reliable and stable, and pile locking force evenly distributes, and is easy to realize the multiple spot clamping, and one oil cylinder can all power, constant speed drive two pile press two-way cylinder Wedge-type Pile holding mechanisms that clamp voussoir simultaneously.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is a main sectional view of the present utility model;
Fig. 2 is a vertical view of the present utility model.
The specific embodiment
Referring to Fig. 1 and Fig. 2, two-way cylinder 8 axially is inlaid in the hollow cylinder 7 of casing 1, two-way cylinder about in the of 8 piston rod head connect with active voussoir 5 respectively, initiatively voussoir 5 skewed surfaces contact the moving sets that partners with driven voussoir 4 skewed surfaces, initiatively voussoir 5 is drilled with pilot hole 6 vertically, pilot hole 6 cooperates the motion guide of realization active voussoir 5 with the guide rod 3 on being installed in casing 1, initiatively the outer ring surface of voussoir 5 contacts with hollow cylinder 7 inner surfaces of casing 1, and the outer face of driven voussoir 4 connects with clamping jaw 9 usefulness bolt.When pressure oil when the middle part of two-way cylinder 8 enters, thrusts such as the last lower piston rod constant speed of two-way cylinder 8 are moved round about, promote active voussoir 5 along guide rod 3 and hollow cylinder 7 inner surface movements, promote clamping jaw 9 clamping pile bodies 2 thereby force driven voussoir 4 entad to move, realize the folder stake; When pressure oil respectively when two-way cylinder 8 two ends enter, the last lower piston rod of two-way cylinder 8 is regained, initiatively voussoir 5 is regained from the wedging state, thereby chucking power is removed, realize the pine stake, the return gathering sill 11 that while return bolt 10 acts on the driven voussoir 4 retracts driven voussoir 4, and clamping jaw 9 apertures are magnified, and is convenient to lay preformed pile pile body 2.
Referring to Fig. 1 and Fig. 2, owing to adopting two-way cylinder 8, can guarantee that piston rod stretches out speed and thrust equates, can eliminate because asynchronous additional force that causes of piston rod movement and the uneven pile locking force of generation, make the chucking power equalization of clamping jaw 9, avoid nip stress to concentrate and cause pile body 2 to damage; Simultaneously, owing to adopt the voussoir force-increasing mechanism, the less thrust of oil cylinder output promptly can produce bigger pile locking force on the one hand, utilizes the self-locking action of voussoir on the other hand, can stably keep pile locking force, thereby avoids folder stake slippage in the piling process; Moreover owing to adopt two-way cylinder output, two voussoirs of a hydraulic oil cylinder driving can reduce half oil cylinder quantity, make structure more compact, and manufacturing cost is lower.
Claims (3)
1. pile press two-way cylinder Wedge-type Pile holding mechanism, comprise casing (1), it is characterized in that: the inner chamber of hollow cylinder (7) of casing (1) in, axially symmetry is embedded with at least four group two-way cylinders (8), the piston rod head up and down of described two-way cylinder (8) is connected with the active voussoir (5) that its anchor ring contacts with the inner surface of described hollow cylinder (7) respectively, on described casing (1), be provided with the clamping jaw (9) corresponding with described two-way cylinder (8), described clamping jaw (9) is provided with the driven voussoir (4) corresponding with described active voussoir (5), described active voussoir (5) skewed surface contacts the moving sets that partners with described driven voussoir (4) skewed surface, described active voussoir (5) is drilled with pilot hole (6) vertically, described pilot hole (6) cooperates the motion guide of the described active voussoir of realization (5) with the guide rod (3) on being installed in casing (1), described driven voussoir (4) is connected with returning device.
2. pile press two-way cylinder Wedge-type Pile holding mechanism according to claim 1, it is characterized in that: described returning device is that described active voussoir (5) is equipped with return bolt (10), and described return bolt (10) head cooperates with return gathering sill (11) on being located at described driven voussoir (4).
3. pile press two-way cylinder Wedge-type Pile holding mechanism according to claim 1 and 2, it is characterized in that: the arc radius of described active voussoir (5) anchor ring is less than the inner surface radius of the hollow cylinder (7) that supports it, described clamping jaw (9), active voussoir (5), driven voussoir (4) can be done limited swing at the inner surface of described hollow cylinder (7), guarantee that clamping jaw (9) contacts with comprehensive flexibility of pile body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200630961U CN201050064Y (en) | 2007-04-28 | 2007-04-28 | Pile pressing machine bidirectional oil cylinder wedge type pile clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200630961U CN201050064Y (en) | 2007-04-28 | 2007-04-28 | Pile pressing machine bidirectional oil cylinder wedge type pile clamping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201050064Y true CN201050064Y (en) | 2008-04-23 |
Family
ID=39336547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200630961U Expired - Lifetime CN201050064Y (en) | 2007-04-28 | 2007-04-28 | Pile pressing machine bidirectional oil cylinder wedge type pile clamping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201050064Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101768972B (en) * | 2010-01-28 | 2012-01-11 | 洪子云 | Force-reducing pile clamping box |
| CN102939421A (en) * | 2010-05-27 | 2013-02-20 | 王志财 | Swivelling pile clamp |
-
2007
- 2007-04-28 CN CNU2007200630961U patent/CN201050064Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101768972B (en) * | 2010-01-28 | 2012-01-11 | 洪子云 | Force-reducing pile clamping box |
| 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 | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080423 |