A cement pile end clamping structure and cement pile driving machine

Abstract

The present invention discloses a cement pile end clamping structure and a cement pile pile driver, and the present invention relates to the technical field of pile driver equipment, and the following scheme is proposed, which includes a cement pile stabilizing frame, wherein the inner cavity of the cement pile stabilizing frame is provided with two cement pile clamping claws which are symmetrically arranged in left and right mirror images; the cement pile stabilizing frame includes a rectangular shell, and two end covers fixed to the upper and lower end surfaces of the rectangular shell. In the technical scheme of the present invention, a winch is arranged on the gantry to pull the cement pile hanger, so that the hanger clamps the end of the cement pile and suspends it inside the gantry, and cooperates with the cement pile end clamping structure which can move up and down inside the gantry, so that the cement pile enters the clamping structure after suspension, and the cement pile enters the pile pit in a relatively stable posture by the cooperation of the oil cylinder and the clamp, thereby avoiding the problem that the pile is difficult to install and the pile driving stability is poor.

Description

Technical Field

[0001] The invention relates to the technical field of pile driver equipment, and in particular to a cement pile end clamping structure and a cement pile driver. Background Art

[0002] Static pile driving refers to a method of driving prefabricated piles into the soil section by section using static pressure (the deadweight of the pile driver and the counterweight). Static pile drivers are divided into mechanical and hydraulic types. The main components of a pile driver include the pile frame chassis, pressure beam, winch, pulley block, configuration and power equipment. When driving a pile, first lift the pile, align it with the pile position, place the top of the pile under the beam, then start the winch to pull the wire rope, gradually tighten the wire rope, move the movable pressure beam downward, and press the deadweight and counterweight load of the entire pile driver on the top of the pile through the pressure beam.

[0003] Static pile driving is generally prefabricated in sections, pressed in sections, and lengthened section by section. For this reason, the piles need to be prefabricated in sections. When the first section of the pile is pressed into the soil and its upper end is about 20cm-30cm from the ground, the second section of the pile is connected and continued to be pressed in. However, during the static pile driving operation, since the cement piles are pressed in sections, the pressing position of the cement piles each time needs to be controlled within a smaller deviation range. If the stability of the pressing is poor, it is easy to deviate beyond the deviation range. Moreover, since the pressure beam of the traditional pile driver is relatively long, the height of the pile driver is very high, which limits its range of motion. Therefore, those skilled in the art hereby propose a cement pile end clamping structure and a cement pile driver. Summary of the invention

[0004] In view of the above-mentioned background technology that it is difficult to install a pile driver on the end of a cement pile, the poor stability during the pile driving process, and the high height of traditional pile drivers, a technical solution of a cement pile end clamping structure is provided.

[0005] It comprises a cement pile stabilizing frame, in which an inner cavity of the cement pile stabilizing frame is provided two cement pile clamps which are arranged in mirror symmetry on the left and right sides;

[0006] The cement pile stabilizing frame includes a rectangular shell, two end covers fixed to the upper and lower end surfaces of the rectangular shell, and the interior of the rectangular shell is hollow, and the inner central area of ​​the end covers is provided with square through holes, and a cement pile passes through the square through holes inside the end covers;

[0007] The cement pile clamp includes two connecting plates fixedly connected to the left and right side walls inside the rectangular shell, a side plate is fixedly connected to the surface of the connecting plates on the side away from each other, and two electro-hydraulic push rods are hinged on the front and rear surfaces of the side plates, the telescopic shafts of the electro-hydraulic push rods are rotatably connected to the rotating shafts, 2-4 arc arms are fixedly connected to the outer ring surface of the rotating shaft, and the side surfaces of the arc arms close to each other are hinged to the front and rear end surfaces of the connecting plates.

[0008] Specifically, the cement pile hoist is placed at the flat head position of the cement pile, and with manual assistance, the movable plate is driven upward by the hydraulic cylinder, and the traction rope is wound up by the winch, thereby forcing the traction rod to be retracted inwardly under the driving action of the movable plate, and the expansion arm is dragged inwardly, and the clamping arm is in tight contact with the surrounding surfaces of the cement pile under the drive of the expansion arm, until the continuous winding of the winch lifts the cement pile from a horizontal lying state to a vertical suspension.

[0009] In the above-mentioned technical solution of the cement pile end clamping structure, preferably: a movable arm is rotatably connected to the surface of one side of the arc-shaped arms that are close to each other, a movable rod is fixedly connected to both ends of the movable arm, and the surface of the one side of the movable rod that is close to each other is in contact with the outer surface of the cement pile body.

[0010] In the above technical solution of the cement pile end clamping structure, preferably: the arc-shaped arms are hinged to the front and rear end surfaces of the connecting plate through axle pins in the middle area of ​​the surface of one side close to each other.

[0011] In the above technical solution of the cement pile end clamping structure, preferably: an X-shaped bracket is fixedly connected between the upper and lower sides of the arc-shaped arms that are close to each other.

[0012] A technical solution for a cement pile driver is also provided:

[0013] It comprises a pile driver mechanism and a cement pile hanger arranged on the top of the pile driver mechanism; wherein the pile driver mechanism comprises two arms erected on the ground in a mirror-symmetrical manner, a top plate fixed in the inner cavity of the arm, and a fixed block movably arranged in the inner cavity of the arm; wherein the top ends of the arms are fixedly connected with cross beams, and a winch is installed at the middle position of the top of the cross beams;

[0014] The cement pile hoist includes a base plate, four expansion arms hinged on the four sides of the base plate, and a movable plate located below the base plate, and four traction rods are hinged on the four sides of the movable plate, the ends of the traction rods are hinged to the inner surfaces of the expansion arms, and a hydraulic cylinder is fixedly connected to the top surface of the base plate, the telescopic shaft of the hydraulic cylinder is fixedly connected to the top surface of the movable plate, a traction steel rope is arranged on the top of the base plate, and the top end of the traction steel rope is wound on the winding wheel of the winch.

[0015] Specifically, the pointed end of the cement pile is placed inside the cement pile stabilizing frame, and the arc arms are driven to approach each other by the movement of the four electro-hydraulic push rod telescopic shafts on the connecting plate, thereby driving the movable arms and movable rods to clamp the outer surface of the cement pile. At this time, the clamping effect of the cement pile hanger on the cement pile is released, and the slider and the fixed block are driven downward by the hydraulic cylinder to force the pointed end of the cement pile to be inserted into the pile pit.

[0016] In the above-mentioned technical solution of a cement pile driver, preferably: the bottom surface of the support arm is fixedly connected with a support plate, the front and rear side walls of the inner cavity of the support arm are fixedly connected with guide rails, and sliders are slidingly arranged inside the guide rails, and the ends of the sliders close to each other are fixedly connected to the front and rear side walls of the fixed block, and the ends of the fixed blocks close to each other are fixedly connected to the left and right side surfaces of the rectangular shell.

[0017] In the above-mentioned technical solution of a cement pile driver, preferably: the top area of ​​the inner cavity of the support arm is fixedly connected to a top plate, the top end of the hydraulic cylinder is fixed to the bottom end of the top plate, and the end of the telescopic shaft of the hydraulic cylinder is fixedly connected to the top surface of the fixed block.

[0018] In the technical solution of the above-mentioned cement pile driver, preferably: the top surface of the base plate is fixedly connected with 4-5 vertical poles in a circular array, the top of the vertical pole is fixed with a fixed disc, and the top surface of the fixed disc is fixedly connected to the bottom end of the traction steel rope.

[0019] In the above-mentioned technical solution of a cement pile driver, preferably: four protrusions are fixedly connected to the surrounding surfaces of the base plate in a circular array, the outer surfaces of the protrusions are rotatably connected to the top ends of the expansion arms via axle pins, the bottom ends of the expansion arms are rotatably connected to the clamping arms via axle pins, and the side surfaces of the clamping arms that are close to each other are in contact with the outer surface of the flat end of the cement pile.

[0020] In the technical solution of the cement pile driver described above, preferably: the movable disc is rotatably connected to an axle pin on all four sides, and the outer ring surface of the axle pin is fixedly connected to one end of the inner side of the traction rod.

[0021] It can be seen from the above technical scheme that the present invention provides a cement pile end clamping structure and a cement pile driver. Compared with the prior art, the present invention has the following beneficial effects:

[0022] In the technical solution of the present invention, a winch is arranged on the gantry to pull the cement pile hoist, so that the hoist clamps the end of the cement pile and suspends it inside the gantry. The cement pile end clamping structure that can move up and down inside the gantry is cooperated to allow the cement pile to enter the clamping structure after suspension. The cooperation of the oil cylinder and the clamp allows the cement pile to enter the pile pit in a relatively stable posture, thereby avoiding the problems of difficulty in pile installation and poor stability in pile pressing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces and describes the drawings required for use in the embodiments of the present invention or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of the cement pile end clamping structure and the cement pile driver;

[0025] Figure 2 This is a schematic diagram of the cement pile end clamping structure after decomposition;

[0026] Figure 3 is a schematic diagram of a cement pile clamp;

[0027] Figure 4 This is the overall schematic diagram of the gantry and the hanger of the pile driver;

[0028] Figure 5 This is a schematic diagram of the pile driver gantry arm after disassembly;

[0029] Figure 6 Schematic diagram of cement pile hanger.

[0030] Attached Figure 1 -Attached Figure 6 The corresponding relationship of the parts is as follows:

[0031] 1. Pile driver mechanism; 11. Support arm; 12. Crossbeam; 13. Winch; 14. Support plate; 15. Top plate; 16. Hydraulic cylinder; 17. Guide rail; 18. Slider; 19. Fixed block; 2. Cement pile stabilizing frame; 21. Rectangular shell; 22. End cover; 3. Cement pile; 4. Cement pile clamp; 41. Side plate; 42. Connecting plate; 43. Movable rod; 44. Movable arm; 45. Arc arm; 46. Rotating shaft; 47. Electro-hydraulic push rod; 5. Cement pile hoist; 51. Fixed disc; 52. Vertical pole; 53. Bottom plate; 54. Bump; 55. Expansion arm; 56. Clamping arm; 57. Towing rod; 58. Movable disc; 59. Traction rope. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In order to more clearly explain and illustrate the technical solution and implementation of the present invention, several preferred specific embodiments for implementing the technical solution of the present invention are introduced below.

[0034] Embodiment: A preferred technical solution for a cement pile end clamping structure:

[0035] Refer to the instruction manual Figure 2 As shown: it comprises a cement pile stabilizing frame 2, in which an inner cavity of the cement pile stabilizing frame 2 is provided two cement pile clamps 4 which are arranged in mirror symmetry on the left and right sides;

[0036] Refer to the instruction manual Figure 2 As shown: the cement pile stabilizing frame 2 includes a rectangular shell 21, two end covers 22 fixed to the upper and lower end surfaces of the rectangular shell 21, and the interior of the rectangular shell 21 is hollow, and the inner central area of ​​the end covers 22 is provided with square through holes, and a cement pile 3 is passed through the square through holes inside the end covers 22;

[0037] Refer to the instruction manual Figure 3 As shown: the cement pile clamp 4 includes two connecting plates 42 fixedly connected to the left and right side walls inside the rectangular shell 21, a side plate 41 is fixedly connected to the surface of the connecting plates 42 on the side away from each other, and two electro-hydraulic push rods 47 are hinged on the front and rear surfaces of the side plate 41, and the telescopic shafts of the electro-hydraulic push rods 47 are rotatably connected to the rotating shafts 46, and 2-4 arcuate arms 45 are fixedly connected to the outer ring surface of the rotating shaft 46, and the side surfaces of the arcuate arms 45 close to each other are hinged to the front and rear end surfaces of the connecting plate 42.

[0038] Refer to the instruction manual Figure 3 As shown: the surfaces of the arc-shaped arms 45 on one side close to each other are rotatably connected to a movable arm 44, and both ends of the movable arm 44 are fixedly connected to a movable rod 43, and the surfaces of the movable rod 43 on one side close to each other are in contact with the outer surface of the pile body of the cement pile 3, so that the cement pile 3 is tightly embraced. The cement pile after being embraced receives downward pressure, so that the cement pile moves slowly downward through static pressure until it finally sinks to the set position. The middle area of ​​the surface of the arc-shaped arms 45 on one side close to each other is hinged to the front and rear end surfaces of the connecting plate 42 through an axle pin. An X-shaped bracket is fixedly connected between the upper and lower surfaces of the arc-shaped arms 45.

[0039] A better technical solution for cement pile driver:

[0040] Refer to the instruction manual Figure 4 and attached Figure 5As shown: it includes a pile driver mechanism 1 and a cement pile hanger 5 arranged on the top of the pile driver mechanism 1. The pile driver mechanism 1 includes two arms 11 erected on the ground in a left-right mirror-symmetrical manner, a top plate 15 fixed in the inner cavity of the arm 11, and a fixed block 19 movably arranged in the inner cavity of the arm 11. The top of the arm 11 is fixedly connected with a cross beam 12, and a winch 13 is installed in the middle position of the top of the cross beam 12; the bottom surface of the arm 11 is fixedly connected with a support plate 14, and the front and rear side walls of the inner cavity of the arm 11 are fixedly connected with a guide rail 17, and a slider 18 is slidably arranged inside the guide rail 17, and the end of the slider 18 close to each other is fixedly connected to the front and rear side walls of the fixed block 19, and the end of the fixed block 19 close to each other is fixedly connected to the left and right side surfaces of the rectangular shell 21. The fixed block 19 is connected to the rectangular housing 21, and the movable arm 44 and the movable rod 43 in the rectangular housing 21 are used to hold the cement pile tightly, so that the force generated by the hydraulic cylinder 16 can be transmitted to the cement pile, thereby squeezing the cement pile downward into the pile pit at the construction location. The top area of ​​the inner cavity of the support arm 11 is fixedly connected to the top plate 15, the top end of the hydraulic cylinder 16 is fixed to the bottom end of the top plate 15, and the end of the telescopic shaft of the hydraulic cylinder 16 is fixedly connected to the top surface of the fixed block 19.

[0041] Refer to the instruction manual Figure 6 As shown: the cement pile hanger 5 includes a base plate 53, four expansion arms 55 hinged on the four sides of the base plate 53, and a movable plate 58 located below the base plate 53, and four traction rods 57 are hinged on the four sides of the movable plate 58, the ends of the traction rods 57 are hinged to the inner surfaces of the expansion arms 55, and a hydraulic cylinder is fixedly connected to the top surface of the base plate 53, the telescopic shaft of the hydraulic cylinder is fixedly connected to the top surface of the movable plate 58, and a traction steel rope 59 is arranged on the top of the base plate 53, and the top end of the traction steel rope 59 is wound around the winding wheel of the winch 13.

[0042] Refer to the instruction manual Figure 6 As shown: the top surface of the bottom plate 53 is fixedly connected with 4-5 vertical poles 52 in an annular array, the top of the vertical pole 52 is fixed with a fixed disc 51, and the top surface of the fixed disc 51 is fixedly connected with the bottom end of the traction steel rope 59. The surrounding surface of the bottom plate 53 is fixedly connected with four protrusions 54 in an annular array, and the outer surface of the protrusion 54 is rotatably connected with the top of the expansion arm 55 through an axle pin, and the bottom end of the expansion arm 55 is rotatably connected with a clamping arm 56 through an axle pin, and the side surface of the clamping arm 56 close to each other contacts the outer surface of the flat head end of the cement pile 3. The surrounding of the movable disk 58 is rotatably connected with an axle pin, and the outer ring surface of the axle pin is fixedly connected with one end of the inner side of the traction rod 57.

[0043] According to the above-mentioned preferred technical solution, the workflow of the technical solution is described as follows:

[0044] First, place the cement pile hoist 5 at the flat head position of the cement pile 3, and with manual assistance, drive the movable plate 58 upward through the hydraulic cylinder, and use the winch 13 to wind up the traction rope 59, thereby forcing the traction rod 57 to be retracted inwardly under the driving action of the movable plate 58, and towing the expansion arm 55 to be retracted inwardly, and the clamping arm 56 is in tight contact with the surrounding surfaces of the cement pile 3 under the drive of the expansion arm 55, until the continuous winding of the winch 13 lifts the cement pile 3 from a horizontal lying state to a vertical suspension.

[0045] Second, place the pointed end of the cement pile 3 into the cement pile stabilizing frame 2, and rely on the telescopic shaft movement of the four electro-hydraulic push rods 47 on the connecting plate 42 to drive the arc arms 45 to move closer to each other, thereby driving the movable arms 44 and the movable rods 43 to clamp the outer surface of the cement pile 3. At this time, the clamping effect of the cement pile hanger 5 on the cement pile 3 is released.

[0046] Third, the hydraulic cylinder 16 is started, and the slider 18 and the fixed block 19 are driven downward by the hydraulic cylinder 16. The fixed block 19 drives the rectangular shell 21 to move downward, so that the mechanism in the rectangular shell 21 holds the cement pile 3 tightly, and the arc arm 45, the movable arm 44 and the movable rod 43 are driven to descend together through the rectangular shell 21, thereby forcing the tip of the cement pile 3 to be inserted into the pile pit.

[0047] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone should be aware that any structural changes made under the inspiration of the present invention, and any technical solutions that are the same or similar to the present invention, fall within the protection scope of the present invention. Finally, it should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the restrictive conditions that can be implemented in this application, so they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the effects that can be produced by this application and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in this application.

Claims

1. A cement pile driver, characterized in that: The invention comprises a pile driver mechanism (1) and a cement pile hanger (5) arranged on the top of the pile driver mechanism (1), and also comprises a cement pile stabilizing frame (2) and a cement pile clamp (4); wherein the pile driver mechanism (1) comprises two arms (11) erected on the ground in a mirror-symmetrical manner, a top plate (15) fixed in the inner cavity of the arm (11), and a fixing block (19) movably arranged in the inner cavity of the arm (11); wherein the top ends of the arms (11) are fixedly connected to cross beams (12), and a winch (13) is installed in the middle of the top of the cross beam (12); The cement pile hanger (5) comprises a bottom plate (53), four expansion arms (55) hinged around the bottom plate (53), and a movable plate (58) located below the bottom plate (53), and four traction rods (57) are hinged around the surface of the movable plate (58), the ends of the traction rods (57) are hinged to the inner surfaces of the expansion arms (55), and the top surface of the bottom plate (53) is fixedly connected to a hydraulic cylinder, and the telescopic shaft of the hydraulic cylinder is fixedly connected to the top surface of the movable plate (58), and a traction steel rope (59) is arranged on the top of the bottom plate (53), and the top end of the traction steel rope (59) is wound around the winding wheel of the winch (13); The bottom surface of the support arm (11) is fixedly connected to a support plate (14), the front and rear side walls of the inner cavity of the support arm (11) are fixedly connected to a guide rail (17), a slider (18) is slidably arranged inside the guide rail (17), the ends of the slider (18) close to each other are fixedly connected to the front and rear side walls of the fixing block (19), and the ends of the fixing block (19) close to each other are fixedly connected to the left and right side surfaces of the rectangular shell (21); The top area of ​​the inner cavity of the support arm (11) is fixedly connected to a top plate (15), the top end of the hydraulic cylinder (16) is fixed to the bottom end of the top plate (15), and the end of the telescopic shaft of the hydraulic cylinder (16) is fixedly connected to the top surface of the fixed block (19); The bottom plate (53) is fixedly connected to four protrusions (54) in a circular array on the surrounding surface, the outer surface of the protrusion (54) is rotatably connected to the top of the expansion arm (55) via an axle pin, the bottom end of the expansion arm (55) is rotatably connected to the clamping arm (56) via an axle pin, and the side surface of the clamping arm (56) close to each other contacts the outer surface of the flat end of the cement pile (3); The cement pile stabilizing frame (2) comprises a rectangular shell (21), two end covers (22) fixed to the upper and lower end surfaces of the rectangular shell (21), and the interior of the rectangular shell (21) is hollow, and the inner central area of ​​each end cover (22) is provided with a square through hole, and a cement pile (3) passes through the square through hole inside the end cover (22); The cement pile clamp (4) comprises two connecting plates (42) fixedly connected to the left and right side walls inside the rectangular shell (21); a side plate (41) is fixedly connected to the surface of the connecting plate (42) on the side away from each other, and two electro-hydraulic push rods (47) are hingedly connected to the front and rear surfaces of the side plate (41); the telescopic shafts of the electro-hydraulic push rods (47) are rotatably connected to the rotating shafts (46); 2-4 arcuate arms (45) are fixedly connected to the outer ring surface of the rotating shaft (46); the surfaces of the arcuate arms (45) on the side close to each other are hingedly connected to the front and rear end surfaces of the connecting plate (42); the surfaces of the arcuate arms (45) on the side close to each other are rotatably connected to a movable arm (44); both ends of the movable arm (44) are fixedly connected to a movable rod (43); and the surfaces of the movable rod (43) on the side close to each other are in contact with the outer surface of the pile body of the cement pile (3).

2. A cement pile driver according to claim 1, characterized in that: The top surface of the bottom plate (53) is fixedly connected to 4-5 vertical poles (52) in a circular array, a fixed disc (51) is fixed to the top of the vertical pole (52), and the top surface of the fixed disc (51) is fixedly connected to the bottom end of the traction steel rope (59).

3. A cement pile driver according to claim 1, characterized in that: The movable plate (58) is rotatably connected to an axle pin on all four sides, and the outer ring surface of the axle pin is fixedly connected to one end of the inner side of the traction rod (57).

4. A cement pile driver according to claim 1, characterized in that: The arc-shaped arms (45) are hingedly connected to the front and rear end surfaces of the connecting plate (42) via axle pins in the middle area of ​​the surfaces on one side close to each other.

5. The cement pile driver according to claim 1, characterized in that: An X-shaped bracket is fixedly connected between the upper and lower sides of the arc-shaped arms (45) that are close to each other.

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