CN111270674A - A double-holding and double-pressing system for pile driver - Google Patents

Abstract

The invention provides a double-holding and double-pressing system for a pile driver, comprising a column frame, an upper pile clamping box, a lower pile clamping box, at least two upper pile driving oil cylinders and at least two lower pile driving oil cylinders, and the column frame It is a cuboid, the upper pile clamping box and the lower pile clamping box are arranged in parallel and spaced in the column frame, one end of the upper pile driving cylinder is connected to the column frame, the other end is connected to drive the upper pile clamping box to move, and one end of the lower pile driving cylinder is connected to the column. The frame and the other end are connected and drive the lower pile clamping box to move. The invention realizes continuous pile pressing and pulling, without the need for a crane to cooperate to hang the pile, each device does not affect the installation space of the two pile clamping boxes, the movement of each device does not interfere with each other, and the overall structure is more compact.

Description

A double-holding and double-pressing system for pile driver

technical field

The invention relates to the technical field of press equipment, in particular to a double-holding and double-pressing system for a pile driver.

Background technique

The static pressure construction of prefabricated piles is a new type of environmental protection pile foundation construction method that uses static pressure to smoothly press the prefabricated piles into the foundation. At present, the static pressure pile construction method has been widely used in the construction of pile foundations in China, and in addition to the use of static pressure piles for prefabricated piles, H-shaped steel piles, steel pipe piles and other special-shaped steel piles are also widely used in the construction of static pressure piles. Law. Hydrostatic construction has the advantages of clean site, no noise, no vibration, no sewage, no smoke, etc. It is suitable for operation in urban areas with special requirements for the environment, and the pile pressing speed is fast and efficient.

At present, as the hydraulic static pile driver is widely used in the construction of immersed cast-in-place piles and immersed pipe compaction piles, the hydraulic static pile driver is used to quickly press the steel pipe pile into the foundation to form a hole, and it needs to be pulled out quickly. Concrete or plain concrete is poured into piles after the steel pipe piles are taken out. Using the traditional hydraulic static pile driver to press or pull out the steel pipe, because there is only one pile clamping box and one pile pressing system, the return time of pile pressing and pile pulling is long, and the pile pressing or pulling cannot be carried out continuously, and the construction efficiency is low. Especially in the pile pulling operation, a large crane is needed to assist in lifting the steel pipe pile to prevent the pulled steel pipe from falling into the pile hole again.

SUMMARY OF THE INVENTION

In view of the above-mentioned problems existing in the prior art, the purpose of the present invention is to provide a double-holding and double-pressing system for a pile driver, which can realize continuous pile pressing and pile pulling, without the need for a crane to cooperate with hoisting the pile, and each device does not affect the In the installation space of the two pile clamping boxes, the movement of each equipment does not interfere with each other, and the overall structure is more compact.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A double-holding and double-pressing system for a pile driver, comprising a column frame, an upper pile clamping box, a lower pile clamping box, at least two upper pile driving oil cylinders and at least two lower pile driving oil cylinders, and the column frame is in the shape of a cuboid, The upper pile clamping box and the lower pile clamping box are arranged in parallel and spaced in the column frame, one end of the upper pile pressing oil cylinder is connected to the column frame, the other end is connected and drives the upper pile clamping box to move, one end of the lower pile pressing oil cylinder is connected to the column frame and the other end is connected to the column frame. Connect and drive the lower pile clamp box to move.

As a further improvement of the above technical solution:

The column frame includes four columns, two upper beams and two lower beams. The four columns are arranged in parallel and spaced apart to form the four edges of the cuboid. The two upper beams are connected at the top of the column frame at parallel intervals, and the two lower beams are parallel. The spaced connection is in the middle of the column frame, and the upper beam and the lower beam are perpendicular to each other.

The two ends of one upper beam are connected to the tops of two of the columns respectively, the two ends of the other upper beam are respectively connected to the tops of the other two columns, the two ends of one lower beam are respectively connected to the middle of the two columns, and the other lower beam The two ends of the column are respectively connected to the middle of the other two columns, and the plane where the two lower beams are located and the plane where the two upper beams are located are parallel and spaced apart.

The column includes a lower column and an upper column, the bottom end of the lower column is connected to the fuselage of the pile driver, and the top end of the lower column is connected with the bottom end of the upper column.

The system includes two upper pile driving oil cylinders, the two upper pile driving oil cylinders are respectively installed in the middle of the two upper level beams, the cylinder body of the upper pile driving oil cylinder is installed on the upper level cross beam, and the piston rod head of the upper pile driving oil cylinder faces downwards. It is hinged with the upper pile clamping box, and the straight line where the piston rod of the upper pile pressing oil cylinder is located is parallel to the vertical column.

The two lower pile driving cylinders are respectively installed in the middle of the two lower beams. The straight line where the piston rod of the oil cylinder is located is parallel to the column.

The upper piling oil cylinder passes through the upper beam, and the lower pile pressure cylinder passes through the lower beam.

Each column is provided with a track group, the length direction of the track group is parallel to the length direction of the column, and four sets of guide wheel groups are arranged on the upper pile clamping box. Scroll with the track group.

Each rail group includes two parallel rails, each rail and the length direction of the column are parallel, the column is in the shape of a cuboid, the two rails of each track group are respectively installed on two adjacent sides of the column, the column is The two adjacent sides are closer to the center of the upper pile box than the other sides.

Each guide wheel set includes at least two guide wheels and at least two guide wheel seats. The guide wheel seats are installed on the upper pile clamping box. Each guide wheel is rotatably installed on one guide wheel seat. Roll along a track, each track has a guide wheel that cooperates with it.

The beneficial effects of the invention are: the two pile clamping boxes and the pile clamping oil cylinder connected with them, and the upper pile pressing oil cylinder and the lower pile pressing oil cylinder matched with the two pile clamping boxes form a structure of double holding and double pressing, so as to realize continuous pile pressing. The upper beam and the lower beam are vertically arranged in different planes, and the upper and lower pile driving cylinders pass through the upper beam and the lower beam respectively, which does not affect the installation of the two pile clamping boxes. Space, the movement of each equipment does not interfere with each other, the height of the column frame is reduced, and the overall structure is more compact.

Description of drawings

1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged schematic diagram of part A in FIG. 1 .

Detailed ways

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.

For ease of description, spatially relative terms, such as "on", "over", "on the surface", "above", etc., may be used herein to describe what is shown in the figures. The spatial positional relationship of one device or feature shown to other devices or features. It should be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or features would then be oriented "below" or "over" the other devices or features under other devices or constructions". Thus, the exemplary term "above" can encompass both an orientation of "above" and "below." The device may also be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptions used herein interpreted accordingly.

A double-holding and double-pressing system for a pile driver, as shown in Figures 1-2, includes a column frame, an upper pile clamping box 3, a lower pile clamping box 7, two upper pile-pressing oil cylinders 1, and two lower pile-pressing cylinders. Pile oil cylinder 5 , two groups of pile clamping oil cylinders 4 , two working platforms 9 and two tie rods 10 .

The column frame is a cuboid frame structure. Specifically, the column frame includes four columns, two upper-level beams 2 and two lower-level beams 6 . The four uprights are arranged in parallel and spaced apart to form the four edges of the cuboid. Preferably, each column includes a lower column 8 and an upper column 11, the bottom end of the lower column 8 is connected to the fuselage of the pile driver, further, the lower column 8 is welded on the fuselage, and the top end of the lower column 8 and The bottom end of the upper column 11 is connected by a pin, so that the lower column 8 and the upper column 11 can be detachably assembled, which is convenient for installation and maintenance of the device. When the lower column 8 and the upper column 11 are installed, they are positioned by a tapered pin positioning mechanism to achieve accurate installation and connection. The lower column 8 and the upper column 11 are in the shape of a cuboid, preferably a long rod-shaped cuboid, that is, a cuboid whose length is much larger than its width and thickness.

Two upper-level beams 2 are connected to the tops of the columns, two ends of one upper-level beam 2 are respectively connected to the tops of two of the columns, and two ends of the other upper-level beams 2 are respectively connected to the tops of the other two columns. Specifically, two upper-level beams 2 are connected to the tops of the upper columns 11 , two ends of one upper-level beam 2 are respectively connected to the tops of the two upper columns 11 , and two ends of the other upper-level beam 2 are respectively connected to the other two upper columns 11 . , so that the two upper-level beams 2 are arranged in parallel and spaced apart. The upper-level beam 2 and the upper column 11 are connected by a pin shaft, so that the upper-level beam 2 and the upper column 11 can be disassembled and assembled.

Two lower beams 6 are connected in the middle of the column, two ends of one lower beam 6 are respectively connected to the middle of the two columns, and two ends of the other lower beam 6 are respectively connected to the middle of the other two columns. Specifically, two lower beams 6 are connected to the middle of the upper column 11 , two ends of one lower beam 6 are respectively connected to the middle of the two upper columns 11 , and two ends of the other lower beam 6 are respectively connected to the other two upper columns 11 In the middle part, the two lower beams 6 are arranged in parallel and spaced apart. The plane where the two lower-level beams 6 are located is parallel to the plane where the two upper-level beams 2 are located, and the upper-level beams 2 and the lower-level beams 6 are perpendicular. A straight line that is perpendicular to each other.

The upper pile clamping box 3 and the lower pile clamping box 7 used for pile clamping and loosening are arranged in parallel and spaced in the column frame. One end of the upper pile pressing oil cylinder 1 is connected to the column frame, and the other end is connected to drive the upper pile clamping box 3 to move. One end of the lower pile pressing oil cylinder 5 is connected to the column frame, and the other end is connected to drive the lower pile clamping box 7 to move.

The two upper pile driving cylinders 1 are respectively installed in the middle of the two upper-level beams 2. Specifically, the cylinder body of the upper pile-driving cylinder 1 is installed on the upper-level beam 2. Pile box 3 is hinged. The straight line where the piston rod of the upper pile driving cylinder 1 is located is parallel to the vertical column. Specifically, the upper pile driving cylinder 1 passes through the upper beam 2 to make the overall device more compact.

The two lower pile-pressing oil cylinders 5 are respectively installed in the middle of the two lower-level beams 6. Specifically, the cylinder body of the lower-level pile-pressing oil cylinder 5 is installed on the lower-level beam 6, and the piston rod head of the lower-level pile-pressing oil cylinder 5 faces downward and is connected to the lower beam. Pile box 7 is hinged. The straight line where the piston rod of the pressing pile oil cylinder 5 is located is parallel to the upright column. The lower pile cylinder 5 passes through the lower beam 6 .

The pile body to be operated passes through the upper pile clamping box 3 and the lower pile clamping box 7, and the two groups of pile clamping oil cylinders 4 are respectively connected and drive the upper pile clamping box 3 and the lower pile clamping box 7, and drive the upper pile clamping box 3 and/or The lower pile clamping box 7 clamps the pile body or loosens the pile body.

A moving kinematic pair is formed between the upper pile clamping box 3 and/or the lower pile clamping box 7 and the column. The upper pile clamping box 3 and the lower pile clamping box 7 adopt the pile clamping box structure in the prior art, preferably, the patented technical solution disclosed by the applicant (application number: 2013104737084) is adopted, and each vertical column is provided with a rail group , the length direction of the track group is parallel to the length direction of the column. Each rail group includes two parallel rails, and each rail is parallel to the length of the column. The two tracks of each track group are respectively installed on two adjacent side surfaces of the upright column, and the two adjacent side surfaces of the upright column are closer to the center of the upper pile clamping box 3 than the other side surfaces. Specifically, each track includes an upper track and a lower track, and the upper track and the lower track do not overlap and are located on the same straight line. The upper rail is arranged on the upper column 11 , and the lower rail is arranged on the lower column 8 . The two upper rails of each rail group are respectively installed on two adjacent sides of the upper column 11 , and the two adjacent sides of the upper column 11 are closer to the upper pile clamping box 3 than the other sides. Similarly, the two lower rails of each rail group are respectively installed on two adjacent sides of the lower column 8, and the two adjacent sides of the lower column 8 are closer to the lower pile box 7 than the other sides.

The upper pile clamping box 3 is provided with four sets of guide wheel sets, and the four sets of guide wheel sets are respectively matched with the track sets on the four uprights. Each guide wheel set includes at least two guide wheels and at least two guide wheel seats, the guide wheel seats are installed on the upper pile clamp box 3, each guide wheel is rotatably installed on one guide wheel seat, and the guide wheels contact the track And roll along a track, each track has a guide wheel matched with it.

The lower pile clamping box 7 is also provided with four sets of guide wheel sets, and the installation and coordination of the guide wheel sets is the same as that of the upper pile clamping box 3, and will not be repeated here.

The guide wheel group and the track group form a guide mechanism, so that the upper pile clamping box 3 and/or the lower pile clamping box 7 can move smoothly in a defined direction.

The two working platforms 9 are respectively located on two opposite sides of the column frame of the rectangular parallelepiped, and the working platforms 9 are platforms for operators to perform installation, maintenance, inspection and other operations.

The two tie rods 10 are respectively located on two opposite sides of the column frame of the rectangular parallelepiped. Two ends of a tie rod 10 are respectively connected to an upper column 11 . The function of the tie rod 10 is to adjust the distance between the two stands 11 when the upper beam 2 is installed, so as to facilitate the accurate installation of the upper beam 2 .

The working principle of the present invention is as follows: it includes two pile clamping boxes, an upper pile clamping box 3 and a lower pile clamping box 7, and an upper pile pressing oil cylinder 1 and a lower pile pressing oil cylinder 5 matched with them, which can realize continuous pile pressing and pile pulling. The pile body to be constructed passes through the upper pile clamping box 3 and the lower pile clamping box 7 . When pulling out the pile, the upper pile clamping box 3 clamps and holds the pile body, the lower pile clamping box 7 releases the pile body, and the upper pile pressing oil cylinder 1 drives the upper pile clamping box 3 and the pile body to move upward. When the upward stroke of the upper pile driving cylinder 1 is completed, the lower pile clamping box 7 clamps the pile body, the upper pile clamping box 3 releases the pile body, and the lower pile driving cylinder 5 drives the lower pile clamping box 7 and the pile body upward. move, and at the same time, the upper pile pressing cylinder 1 drives the upper pile clamping box 3 to move down to the upper pile pressing cylinder 1 to complete the descending stroke. After the lifting stroke of the lower pile pressing oil cylinder 5 is completed, the upper pile clamping box 3 clamps and holds the pile body, and the lower pile clamping box 7 loosens the pile body, and so on, realizes continuous pile pulling. When the pile is pressed, the upper pile clamping box 3 or the lower pile clamping box 7 is driven to move upward, that is, the upper pile clamping box 3 or the lower pile clamping box 7 clamps and holds the pile body during the descending stroke, and releases it during the ascending stroke. The pile body realizes continuous pile pressing.

It should be noted that the pile clamping oil cylinder 4 drives the upper pile clamping box 3 or the lower pile clamping box 7 connected to it, so that the upper pile clamping box 3 and/or the lower pile clamping box 7 clamp the pile body or loosen the pile body. .

Finally, it is necessary to explain here: the above embodiments are only used to further describe the technical solutions of the present invention in detail, and should not be construed as limiting the protection scope of the present invention. Non-essential improvements and adjustments belong to the protection scope of the present invention.

Claims (10)

1. a double-holding and double-pressing system for a pile driver, characterized in that it comprises a column frame, an upper pile clamping box (3), a lower pile clamping box (7), at least two upper pile driving oil cylinders (1) and at least two lower pile driving oil cylinders (5), the column frame is rectangular, the upper pile clamping box (3) and the lower pile clamping box (7) are arranged in parallel and spaced in the column frame, and one end of the upper pile driving oil cylinder (1) The column frame is connected, the other end is connected and drives the upper pile clamping box (3) to move, one end of the lower pile pressing oil cylinder (5) is connected to the column frame, the other end is connected and drives the lower pile clamping box (7) to move. 2. The double-holding and double-pressing system for pile driver according to claim 1, characterized in that: the column frame comprises four columns, two upper-level beams (2) and two lower-level beams (6), four The columns are arranged in parallel and spaced apart to form four edges of a cuboid, two upper-level beams (2) are connected at the top of the column frame in parallel and spaced apart, two lower-level beams (6) are connected in the middle of the column frame at parallel intervals, and the upper-level beams (2) ) and the lower beam (6) are perpendicular to different planes. 3. The double-holding and double-pressing system for a pile driver according to claim 2, characterized in that: the two ends of one upper-level beam (2) are respectively connected to the tops of the two vertical columns, and the other upper-level beam (2) The two ends of the lower beam (6) are respectively connected to the tops of the other two columns, the two ends of one lower beam (6) are respectively connected to the middle of the two columns, and the two ends of the other lower beam (6) are respectively connected to the middle of the other two columns. The plane on which the two lower beams (6) are located and the planes on which the two upper beams (2) are located are spaced parallel to each other. 4. The double-holding and double-pressing system for a pile driver according to claim 2, characterized in that: the column comprises a lower column (8) and an upper column (11), and the bottom end of the lower column (8) is connected to the pressure On the body of the pile driver, the top end of the lower column (8) is connected with the bottom end of the upper column (11). 5. The double-holding and double-pressing system for a pile driver according to claim 2 or 3, wherein the system comprises two upper pile driving oil cylinders (1), two upper pile driving oil cylinders (1) They are respectively installed in the middle of the two upper beams (2), the cylinder body of the upper pile driving cylinder (1) is installed on the upper beam (2), and the piston rod head of the upper pile driving cylinder (1) faces down and is connected with the upper pile clamp. The box (3) is hinged, and the straight line where the piston rod of the upper pile pressing oil cylinder (1) is located is parallel to the upright column. 6. The double-holding and double-pressing system for a pile driver according to claim 5, characterized in that: the two pile-pressing oil cylinders (5) are respectively installed in the middle of the two lower-level beams (6), and the pile-pressing cylinders (5) The cylinder body of the oil cylinder (5) is installed on the lower beam (6), the piston rod head of the lower pile pressing oil cylinder (5) faces down and is hinged with the lower pile clamping box (7), and the piston rod of the lower pile pressing oil cylinder (5) The line on which it is located is parallel to the column. 7. The double-holding and double-pressing system for a pile driver according to claim 6, characterized in that: the upper pile driving oil cylinder (1) passes through the upper beam (2), and the lower pile driving oil cylinder (5) passes through the lower stage beam (6). 8. The double-holding and double-pressing system for a pile driver according to claim 2, characterized in that: each column is provided with a track group, the length direction of the track group is parallel to the length direction of the column, and the upper pile clamping box (3) There are four sets of guide wheel groups on it, and the four groups of guide wheel groups respectively contact the track groups on the four columns and roll along the track groups. 9. The double-holding and double-pressing system for a pile driver according to claim 8, wherein each track group comprises two parallel tracks, the length direction of each track and the vertical column are parallel, and the vertical column is in the shape of a cuboid , the two rails of each rail group are respectively installed on two adjacent side surfaces of the upright column, and the two adjacent side surfaces of the upright column are closer to the center of the upper pile clamping box (3) than the other side surfaces. 10. The double-holding and double-pressing system for a pile driver according to claim 9, characterized in that: each guide wheel group comprises at least two guide wheels and at least two guide wheel seats, and the guide wheel seats are installed on the On the pile clamping box (3), each guide wheel is rotatably mounted on a guide wheel seat, the guide wheel contacts the track and rolls along a track, and each track has a guide wheel matched with it.

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