CN112709227A - Erecting system of pile driver - Google Patents
Erecting system of pile driver Download PDFInfo
- Publication number
- CN112709227A CN112709227A CN202011550663.2A CN202011550663A CN112709227A CN 112709227 A CN112709227 A CN 112709227A CN 202011550663 A CN202011550663 A CN 202011550663A CN 112709227 A CN112709227 A CN 112709227A
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- oil cylinder
- jacking
- pile driver
- upright post
- lifting
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- 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
- E02D7/02—Placing by driving
- E02D7/06—Power-driven drivers
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- 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
- E02D7/02—Placing by driving
- E02D7/06—Power-driven drivers
- E02D7/14—Components for drivers inasmuch as not specially for a specific driver construction
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- 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
- E02D7/02—Placing by driving
- E02D7/06—Power-driven drivers
- E02D7/14—Components for drivers inasmuch as not specially for a specific driver construction
- E02D7/16—Scaffolds or supports for drivers
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- 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
- E02D7/02—Placing by driving
- E02D7/06—Power-driven drivers
- E02D7/14—Components for drivers inasmuch as not specially for a specific driver construction
- E02D7/16—Scaffolds or supports for drivers
- E02D7/165—Scaffolds or supports for drivers of variable length, e.g. foldable or telescopic
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- 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
A lifting system of a pile driver comprises an automatic reset bidirectional alignment lifting mechanism, a lower support, an oil cylinder lower cross, a lifting oil cylinder, an oil cylinder upper cross, an upper support, a ball seat, an upright post and an upright post fulcrum; the upright post fulcrum shaft and the automatic reset bidirectional aligning jacking mechanism are respectively arranged at two ends of a pile driver machine platform, the upright post is supported on the pile driver machine platform through the upright post fulcrum shaft, an oil cylinder rod of the lifting oil cylinder is connected with the upper support through an oil cylinder upper cross, and an oil cylinder barrel of the lifting oil cylinder is connected with the lower support through an oil cylinder lower cross; a ball seat is fixedly arranged on the side surface of the upright post; the automatic reset bidirectional aligning jacking mechanism comprises a jacking oil cylinder, a bidirectional hinged support and at least two reset springs; the two-way hinged support is fixedly arranged on the pile driver machine platform, the jacking oil cylinder is arranged on the two-way hinged support, one end of the return spring is arranged on the jacking oil cylinder, and the other end of the return spring is arranged on the pile driver machine platform. The invention has the advantages of simple structure and high reliability.
Description
Technical Field
The invention belongs to the technical field of piling machinery, and particularly relates to a lifting system of a pile driver.
Background
The operation of converting the vertical column of the piling machine from a horizontal state (transportation state) to a vertical state (working state) by using the power of the oil cylinder and vice versa is called the vertical column lifting. The vertical column lifting of the piling machinery has great influence on construction, particularly crawler-type pile frames are required to be transported integrally, the external dimension of the crawler-type pile frames needs to be limited, and the mechanical space requirement is very compact, so that the vertical column lifting mechanism has the characteristics of simple structure, high reliability, small occupied space and the like. At present, two typical upright post erecting modes are mainly available at home and abroad.
A vertical column lifting mode is a lifting oil cylinder fulcrum movable type lifting mode.
The working principle is as follows: the movable seat can move along the upright under the action of the stretching oil cylinder, so that the position of a supporting point of the erecting oil cylinder is changed, the included angle alpha between the erecting oil cylinder and the horizontal direction is changed, the included angle alpha is increased by changing the position of the movable seat on the upright at the initial stage of erecting the upright, the upright can be driven to rotate by the vertical component force when the erecting oil cylinder is driven until the upright is rotated to the vertical state, namely the working state of the machine, and the erection is finished.
The main defects are that a moving seat and a stretching oil cylinder mechanism are added on the upright post, the structure is complex, the weight is increased, and the cost is increased. The movable seat can move on the upright post, and a gap must exist between the movable seat and the upright post, so that the rigidity of the mechanism is influenced, and the working reliability is also influenced.
The other upright post lifting mode is a lifting oil cylinder and swing jacking mechanism lifting mode.
The working principle is as follows: the upright post lifting mode comprises two stages, namely a first stage upright post is from a horizontal state to a middle state, a certain included angle is formed between the upright post and the horizontal state in the middle state, and a second stage upright post is from the middle state to a vertical state.
Because of the limitation of the machine structure arrangement and the stroke of the oil cylinder, the included angle alpha between the erecting oil cylinder and the horizontal plane cannot be too large, so that the vertical component force is too small when the erecting oil cylinder is driven, the moment required by the rotation of the upright post around the upright post fulcrum cannot be provided, and a swinging jacking mechanism is arranged for achieving the moment required by the erection of the upright post and consists of a swinging jacking oil cylinder, a swinging rod and a roller. Under the drive of the jacking oil cylinder of the swing jacking mechanism, the swing rod swings in the front and back directions to jack the upright upwards, so that the included angle between the lifting oil cylinder and the horizontal plane is increased, and the first stage of work of lifting the upright is completed. The second stage of the work of the upright post erection is driven by the erection oil cylinder, at the moment, the included angle between the erection oil cylinder and the horizontal plane can meet the requirement of the upright post erection, the vertical component force during the driving of the erection oil cylinder can meet the moment required by the rotation of the upright post around the upright post fulcrum, and the upright post is rotated to the vertical state under the action of the erection oil cylinder, namely the working state of the machine, so that the erection is completed.
The main defect is that the swing jacking mechanism is of a door type truss structure, and the swing mechanism consisting of the jacking oil cylinder and the swing rod is large in structural size and large in swing angle, so that the mechanism occupies a large space, and the machine body is enlarged.
Because two main typical upright post erecting modes at home and abroad have respective defects, a new upright post erecting system of the pile driver needs to be designed.
Disclosure of Invention
The invention aims to provide a erecting system of a pile driver, which aims to solve the problem that two main typical upright erecting modes at home and abroad proposed in the background technology have respective defects.
In order to achieve the aim, the invention provides a lifting system of a pile driver, which comprises an automatic reset bidirectional alignment lifting mechanism, a lower support, a lower cross of an oil cylinder, a lifting oil cylinder, an upper cross of the oil cylinder, an upper support, a ball seat, an upright post and an upright post fulcrum shaft; the bidirectional alignment means that the front and back and the left and right vertical directions of the pile driver are aligned, the upright post support shaft and the automatic reset bidirectional alignment jacking mechanism are respectively arranged at the front and back ends of a pile driver machine platform, the upright post is supported on the pile driver machine platform through the upright post support shaft and can rotate in the front and back directions around the upright post support shaft, the end part of an oil cylinder rod of the lifting oil cylinder is connected with an upper support fixedly arranged on the upright post through an oil cylinder upper cross, the end part of an oil cylinder barrel of the lifting oil cylinder is connected with a lower support fixedly arranged in the middle of the front and back directions of the pile driver machine platform through an oil cylinder lower cross, the oil cylinder lower cross comprises a lower support shaft A and a lower support shaft B which are vertically arranged, and the oil cylinder upper cross also comprises two upper support shafts which are vertically arranged; a ball head seat is fixedly arranged on the side surface of the upright column close to the pile driver machine platform, and the ball head seat is arranged between the upper support and the upright column fulcrum shaft in the length direction of the upright column;
the automatic reset bidirectional aligning jacking mechanism comprises a jacking oil cylinder, a bidirectional hinged support and at least two reset springs; the two-way hinged support is fixedly arranged on a pile driver machine platform, the end part of an oil cylinder barrel of the jacking oil cylinder is arranged on the two-way hinged support, the two-way hinged support comprises a front shaft and a rear shaft which can enable the end part of the oil cylinder barrel of the jacking oil cylinder to swing around a shaft in the left-right direction and a left shaft and a right shaft which can enable the end part of the oil cylinder barrel of the jacking oil cylinder to swing around the shaft in the front-back direction, one end of a return spring is arranged on the outer side surface of the oil cylinder barrel wall of the jacking oil cylinder, the other end of the return spring is directly or indirectly arranged on the pile driver machine platform, and the return spring is used for enabling the jacking; the ball head seat is used for being matched with a ball head at the end part of an oil cylinder rod of the jacking oil cylinder to play a role, the ball head is of a convex curved surface structure, and the ball head seat comprises a concave curved surface structure.
In a specific embodiment, the erecting system of the pile driver comprises two sets of lower supports, an oil cylinder lower cross, an erecting oil cylinder, an oil cylinder upper cross and an upper support which are arranged in bilateral symmetry by taking an upright column as a center.
In a specific embodiment, a jacking oil cylinder limiting structure is fixedly arranged on the pile driver machine platform and used for limiting the amplitude of the left-right swing of the jacking oil cylinder, and one end of a return spring is fixedly connected with the jacking oil cylinder limiting structure and arranged on the pile driver machine platform.
In a specific embodiment, the end of the cylinder rod of the jacking cylinder is hemispherical.
In a specific embodiment, the contact surface of the ball seat and the end part of the oil cylinder rod of the jacking oil cylinder is in a bowl shape.
In a specific embodiment, one end of at least two return springs is respectively arranged at two symmetrical sides of the cylinder wall of the oil cylinder barrel of the jacking oil cylinder.
In a specific embodiment, the radius of curvature of the convex curved surface of the ball head is smaller than the radius of curvature of the concave curved surface of the ball head seat, and preferably the difference between the two radii of curvature is more than 2 times.
In a particular embodiment, the fore-aft axis is down and the left-right axis is up to accommodate a greater swing of the lift cylinder in the fore-aft direction than in the left-right direction.
Compared with the prior art, the invention has the following beneficial effects:
the erecting system of the pile driver is simple in structure, unnecessary mechanical mechanisms are reduced, the failure rate is reduced, the overall reliability is improved, and the production cost of the pile driver is reduced.
The jacking mechanism has a more compact structure, the movement track of the oil cylinder of the jacking mechanism is a straight line, the occupied space during lifting is small, the space utilization rate of the machine is improved, the size is smaller, and the transportation is more facilitated.
Meanwhile, the movement track of the oil cylinder of the automatic reset bidirectional aligning jacking mechanism is a straight line and is vertical to the stand column, the oil cylinder is stressed vertically, so that the stress of the oil cylinder is more reasonable, the safety of the erecting process is higher, the movement distance of the oil cylinder is shorter, the erecting time of the machine is shorter, and the construction efficiency is higher.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of one embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an auto-return bi-directional alignment lift mechanism according to an embodiment of the present invention;
FIG. 3 is a partial schematic structural view of a lower support and a lower cross of a cylinder according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a column of one embodiment of the present invention in a horizontal position;
FIG. 5 is a schematic structural view of a column of one embodiment of the present invention when the column is lifted by a lift cylinder;
FIG. 6 is a schematic view of a partial structure of a jacking cylinder abutting against a ball cup according to an embodiment of the present invention;
wherein, 1, automatically resetting the bidirectional aligning jacking mechanism; 2. a lower support; 3. a lower cross of the oil cylinder; 4. a lifting oil cylinder; 5. a cross frame is arranged on the oil cylinder; 6. an upper support; 7. a ball cup seat; 8. a column; 9. a column fulcrum; 10. a jacking cylinder limiting structure; 11. a jacking oil cylinder; 12. a return spring; 13. a bidirectional hinged support; 31. a lower fulcrum A; 32. a lower fulcrum B; 111. a ball head; 131. a front and rear axle; 132. a left shaft and a right shaft.
Detailed Description
Embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.
Example 1
The invention discloses a lifting system of a pile driver, which comprises an automatic reset bidirectional alignment lifting mechanism 1, a lower support 2, an oil cylinder lower cross 3, a lifting oil cylinder 4, an oil cylinder upper cross 5, an upper support 6, a ball head seat 7, an upright post 8 and an upright post fulcrum shaft 9, wherein the automatic reset bidirectional alignment lifting mechanism is arranged on the lower support 2; the bidirectional alignment means that the front and back and the left and right vertical directions of the pile driver are aligned, the upright post fulcrum shaft 9 and the automatic reset bidirectional alignment jacking mechanism 1 are respectively arranged at the front and back ends of the platform of the pile driver machine, the upright post 8 is supported on the platform of the pile driver machine through the upright post fulcrum shaft 9, and the upright post 8 can rotate around an upright post fulcrum shaft 9 in the front-back direction, the end part of an oil cylinder rod of the lifting oil cylinder 4 is connected with an upper support 6 fixedly arranged on the upright post 8 through an oil cylinder upper cross 5, the end part of an oil cylinder barrel of the lifting oil cylinder 4 is connected with a lower support 2 fixedly arranged in the middle part of the pile driver machine platform in the front-back direction through an oil cylinder lower cross 3, the oil cylinder lower cross 3 comprises a lower fulcrum A31 and a lower fulcrum B32 which are vertically arranged, and the oil cylinder upper cross 5 also comprises two upper fulcrum which are vertically arranged; a ball socket 7 is fixedly arranged on the side surface of the upright post 8 close to the pile driver machine platform, and the ball socket 7 is arranged between the upper support 6 and an upright post fulcrum shaft 9 in the length direction of the upright post 8;
the automatic reset bidirectional aligning jacking mechanism 1 comprises a jacking oil cylinder 11, a bidirectional hinged support 13 and at least two reset springs 12; the two-way hinged support 13 is fixedly arranged on a pile driver machine platform, the end part of an oil cylinder barrel of the jacking oil cylinder 11 is arranged on the two-way hinged support 13, the two-way hinged support 13 comprises a front shaft 131 and a rear shaft 132, the front shaft 131 can enable the end part of the oil cylinder barrel of the jacking oil cylinder 11 to swing around the shaft in the left-right direction, the left shaft 132 can enable the end part of the oil cylinder barrel of the jacking oil cylinder 11 to swing around the shaft in the front-back direction, one end of a return spring 12 is arranged on the outer side surface of the oil cylinder barrel wall of the jacking oil cylinder 11, the other end of the return spring 12 is directly or indirectly arranged on the pile driver machine platform, and the return spring 12 is used for enabling the jacking oil cylinder 11 to integrally; the ball head seat 7 is used for being matched with a ball head 111 at the end part of an oil cylinder rod of the jacking oil cylinder 11 to play a role, the ball head 111 is of a convex curved surface structure, and the ball head seat 7 comprises a concave curved surface structure. In the lifting process of the upright post lifting frame, the end part of an oil cylinder rod of the lifting oil cylinder 11 is connected with the ball seat 7. The upper cross 5 and the lower cross 3 of the oil cylinder have the function of enabling the upper hinge point and the lower hinge point of the lifting oil cylinder to swing forwards, backwards, leftwards and rightwards in the extending and contracting process of the lifting oil cylinder.
The upright post erecting process comprises two stages, namely a first stage that the upright post is in a horizontal state to a middle state (a certain included angle is formed between the upright post and the horizontal state), and a second stage that the upright post is in a vertical state from the middle state. The power of the first stage is mainly provided by a jacking oil cylinder in an automatic reset bidirectional alignment jacking mechanism, and the low pressure of a lifting oil cylinder follows. The power of the second stage is driven by the lifting oil cylinder.
Because of the limitation of the structural arrangement of the machine and the stroke of the oil cylinder, the included angle alpha between the erecting oil cylinder 4 and the horizontal plane cannot be too large, so that the vertical component force is too small when the erecting oil cylinder 4 is driven, the moment required by the rotation of the upright post 8 around the upright post fulcrum shaft 9 cannot be provided, and the automatic resetting bidirectional aligning jacking mechanism 1 is arranged for achieving the moment required by the erection of the upright post. The jacking oil cylinder 11 in the automatic reset bidirectional aligning jacking mechanism 1 automatically aligns the ball socket 7 welded on the stand column, and the stand column 8 swings forwards, backwards, leftwards and rightwards, so that the jacking oil cylinder 11 always aligns the ball socket 7 welded on the stand column in the jacking process, the automatic reset bidirectional aligning jacking mechanism 1 needs to be capable of realizing bidirectional automatic adjustment, the stand column 8 is jacked upwards under the driving of the jacking oil cylinder 11, the included angle between the jacking oil cylinder and the horizontal plane is increased, and the work of the first stage of upright column jacking is completed. The second stage of the work of the upright post erection is driven by the erection cylinder 4, at this time, the included angle between the erection cylinder 4 and the horizontal plane can meet the requirement of the upright post erection, the vertical component force when the erection cylinder 4 is driven can meet the moment required by the upright post rotating around the upright post fulcrum shaft, and the upright post is rotated to the vertical state under the action of the erection cylinder, namely, the working state of the machine, so that the upright post erection is completed.
In a specific embodiment, the lifting system of the pile driver comprises two sets of lower supports 2, a lower cross 3 of the oil cylinder, a lifting oil cylinder 4, an upper cross 5 of the oil cylinder and an upper support 6 which are arranged in bilateral symmetry by taking an upright post 8 as a center. The left-right symmetrical lower support 2, the oil cylinder lower cross 3, the lifting oil cylinder 4, the oil cylinder upper cross 5 and the upper support 6 are adopted, so that the inclination of the stand column towards the left side and the right side in the lifting process is reduced, and the second stage of lifting the whole stand column is more stable.
In a specific embodiment, a jacking cylinder limiting structure 10 is further fixedly arranged on the pile driver machine platform, the jacking cylinder limiting structure is used for limiting the amplitude of the left-right swinging of the jacking cylinder, and one end of a return spring 12 is fixedly connected with the jacking cylinder limiting structure and arranged on the pile driver machine platform. When the jacking oil cylinder has larger swing amplitude in the left and right directions and the tension of the return spring 12 is not enough to enable the jacking oil cylinder to be immediately reset, the limiting structure of the jacking oil cylinder prevents the excessive lateral deviation of the left and right directions of the jacking oil cylinder through rigidity limitation, and the safety of the whole machine and peripheral personnel is guaranteed.
In a specific embodiment, the end of the rod of the lift cylinder 11 is hemispherical.
In a specific embodiment, the contact surface of the ball seat 7 and the end of the cylinder rod of the jacking cylinder 11 is in a bowl shape. The circular arc-shaped contact surface makes the transition of the contact point more stable, and the abrasion to the contact surface is relatively smaller.
In a specific embodiment, one end of at least two return springs 12 are respectively arranged on two symmetrical sides of the cylinder barrel wall of the jacking cylinder 11. The upright post 8 can swing in the front, back, left and right directions under the action of external force, and can be maintained at a fixed position under the action of the return spring 12 after the external force is removed.
In one specific embodiment, the radius of curvature of the convex curved surface of the ball head 111 is smaller than the radius of curvature of the concave curved surface of the ball head seat 7, and preferably the difference between the two radii of curvature is more than 2 times.
In one embodiment, the fore-aft shaft 131 is down and the left-right shaft 132 is up to accommodate a greater amount of swing of the lift cylinder 11 in the fore-aft direction than in the left-right direction.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions and substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (8)
1. A lifting system of a pile driver is characterized by comprising an automatic reset bidirectional alignment lifting mechanism (1), a lower support (2), a lower cross (3) of an oil cylinder, a lifting oil cylinder (4), an upper cross (5) of the oil cylinder, an upper support (6), a ball head seat (7), an upright post (8) and an upright post fulcrum shaft (9); the bidirectional alignment means that the front and back and the left and right vertical directions of the pile driver are aligned, the upright post support shaft (9) and the automatic reset bidirectional alignment jacking mechanism (1) are respectively arranged at the front and back ends of a pile driver machine platform, the upright post (8) is supported on the pile driver machine platform through the upright post support shaft (9), the upright post (8) can rotate around the upright post support shaft (9) in the front and back directions, the end part of an oil cylinder rod of the lifting oil cylinder (4) is connected with an upper support (6) fixedly arranged on the upright post (8) through an upper oil cylinder cross (5), the end part of an oil cylinder barrel of the lifting oil cylinder (4) is connected with a lower support (2) fixedly arranged in the middle of the front and back directions of the pile driver machine platform through a lower oil cylinder cross (3), and the lower oil cylinder cross (3) comprises a lower support shaft A (31) and a lower support shaft B (32) which are vertically arranged, the oil cylinder upper cross (5) also comprises two upper support shafts which are vertically arranged; a ball head seat (7) is fixedly arranged on the side surface of the upright post (8) close to the pile driver machine platform, and the ball head seat (7) is arranged between the upper support (6) and the upright post fulcrum shaft (9) in the length direction of the upright post (8);
the automatic reset bidirectional alignment jacking mechanism (1) comprises a jacking oil cylinder (11), a bidirectional hinged support (13) and at least two reset springs (12); the two-way hinged support (13) is fixedly arranged on a pile driver machine platform, the end part of an oil cylinder barrel of the jacking oil cylinder (11) is arranged on the two-way hinged support (13), the two-way hinged support (13) comprises a front shaft (131) and a rear shaft (132) which can enable the end part of the oil cylinder barrel of the jacking oil cylinder (11) to swing around a shaft in the left-right direction and a left-right shaft (132) which can enable the end part of the oil cylinder barrel of the jacking oil cylinder (11) to swing around the shaft in the front-back direction, one end of a return spring (12) is arranged on the outer side surface of the oil cylinder barrel wall of the jacking oil cylinder (11), the other end of the return spring (12) is directly or indirectly arranged on the pile driver machine platform, and the return spring (12) is used for enabling the whole jacking oil cylinder (11) to return and; the ball head seat (7) is used for being matched with a ball head (111) at the end part of an oil cylinder rod of the jacking oil cylinder (11) to play a role, the ball head (111) is of a convex curved surface structure, and the ball head seat (7) comprises a concave curved surface structure.
2. The pile driver lifting system according to claim 1, comprising two sets of lower supports (2), lower cross (3) of the oil cylinder, lifting oil cylinder (4), upper cross (5) of the oil cylinder and upper support (6) which are arranged symmetrically left and right with respect to the vertical column (8).
3. The pile driver erecting system according to claim 1, wherein a jacking cylinder limiting structure (10) is further fixedly arranged on the pile driver machine platform and used for limiting the left-right swinging amplitude of the jacking cylinder, and one end of the return spring (12) is fixedly connected with the jacking cylinder limiting structure and arranged on the pile driver machine platform.
4. A lifting system for a pile driver as claimed in claim 1, characterized in that the cylinder rod end of the jacking cylinder (11) is hemispherical.
5. The pile driver erecting system according to claim 1, wherein the contact surface of the ball cup (7) and the cylinder rod end of the jacking cylinder (11) is bowl-shaped.
6. The pile driver erecting system according to claim 1, wherein one end of at least two of said return springs (12) is disposed symmetrically on both sides of a cylinder barrel wall of the jacking cylinder (11).
7. Pile driver lifting system according to claim 1, characterised in that the radius of curvature of the convex curved surface of the ball head (111) is smaller than the radius of curvature of the concave curved surface of the ball head seat (7), preferably the two radii of curvature differ by more than a factor of 2.
8. The pile driver racking system of claim 1 wherein said fore-aft shaft (131) is down and said left-right shaft (132) is up to accommodate greater swing of said jacking cylinder (11) in the fore-aft direction than in the left-right direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011550663.2A CN112709227B (en) | 2020-12-24 | 2020-12-24 | Erecting system of pile driver |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011550663.2A CN112709227B (en) | 2020-12-24 | 2020-12-24 | Erecting system of pile driver |
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| CN112709227A true CN112709227A (en) | 2021-04-27 |
| CN112709227B CN112709227B (en) | 2022-06-10 |
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| CN202011550663.2A Active CN112709227B (en) | 2020-12-24 | 2020-12-24 | Erecting system of pile driver |
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| DE9016037U1 (en) * | 1990-11-24 | 1992-03-26 | Delmag Maschinenfabrik Reinhold Dornfeld GmbH & Co, 7300 Esslingen | Mobile work equipment |
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| CN110939310A (en) * | 2019-08-22 | 2020-03-31 | 广东力源液压机械有限公司 | Method and device for assisting in erecting upright column and crawler-type pile driver |
| CN111379212A (en) * | 2018-12-28 | 2020-07-07 | 郑州宇通重工有限公司 | Front spraying device of pavement maintenance vehicle and pavement maintenance vehicle |
| CN111636426A (en) * | 2020-06-24 | 2020-09-08 | 上海雄程海洋工程股份有限公司 | Pile frame jacking device of pile driving ship and pile jacking and lying method of pile frame |
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2020
- 2020-12-24 CN CN202011550663.2A patent/CN112709227B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9016037U1 (en) * | 1990-11-24 | 1992-03-26 | Delmag Maschinenfabrik Reinhold Dornfeld GmbH & Co, 7300 Esslingen | Mobile work equipment |
| CN201843130U (en) * | 2010-09-30 | 2011-05-25 | 河南省三力机械制造有限公司 | Drilling machine with long auger stem |
| CN204662438U (en) * | 2015-06-02 | 2015-09-23 | 江西中恒岩土工程技术有限公司 | A kind of Novel free dismounting pile driver |
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| CN110939310A (en) * | 2019-08-22 | 2020-03-31 | 广东力源液压机械有限公司 | Method and device for assisting in erecting upright column and crawler-type pile driver |
| CN111636426A (en) * | 2020-06-24 | 2020-09-08 | 上海雄程海洋工程股份有限公司 | Pile frame jacking device of pile driving ship and pile jacking and lying method of pile frame |
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