Pile driver with tilting and sinking mechanism

Abstract

The pile frame capable of sinking piles in pitching mode comprises a hoisting arm, a pile frame is hinged on the hoisting arm, a pile frame hydraulic cylinder is installed on the pile frame, a pile frame sliding plate is also slidingly supported on the pile frame, the pile frame sliding plate is connected with the pile frame hydraulic cylinder, an extension support rod is also hinged on the pile frame sliding plate, an extension rod hydraulic cylinder is installed on the extension support rod, and a pile clamping device is also installed on the pile frame. The extension support rod comprises an extension sleeve and an extension sliding rod, the extension sliding rod is slidingly sleeved in the extension sleeve, the extension rod hydraulic cylinder is supported between the extension sleeve and the extension sliding rod, and the extension sliding rod is hinged with the pile frame sliding plate. The extension sleeve of the extension support rod is hinged on an arm platform, and the hoisting arm is also hinged on the arm platform. Two symmetrical pile clamping claw arms are hinged on the pile clamping device body. The pile frame can realize vertical pile sinking, positive inclined pile sinking and negative inclined pile sinking construction operations, and has the characteristics of wide application range and high construction efficiency.

Description

Technical Field

[0001] This utility model relates to construction machinery, specifically to a pile driving frame capable of performing pitching and tilting pile driving operations. Background Technology

[0002] Pile foundations are a type of foundation with high bearing capacity and wide applicability. Piles are structural members that transfer all or part of the load of a building to the foundation soil and have a certain degree of rigidity and bending resistance. Their function is to transfer the load to a deeper soil layer with good bearing capacity to meet the requirements of bearing capacity and settlement. They are widely used in high-rise buildings, ports, bridges, marine engineering, bridge engineering and other construction projects.

[0003] Inclined pile foundations optimize soil stress distribution through their tilt angle, increasing frictional resistance around the pile, effectively reducing shear force and bending moment, and enhancing overall pile bearing capacity. They are suitable for applications requiring resistance to large horizontal loads, such as marine engineering, bridge engineering, roadbed engineering, and large power line foundations. In these applications, the foundation often consists of a combination of vertical piles, positively inclined piles, and negatively inclined piles. Current inclined pile driving equipment can only tilt the pile frame backwards for driving. In this case, the pile and hammer are movably mounted on the pile frame in a backward-tilting manner. When driving a forward-tilting pile, the entire driving equipment, including the crane, pile frame, and hammer, must be moved to the front of the pile, maintaining the backward-tilting position. This not only increases manpower and equipment costs during pile driving but also extends the driving time, lengthening the construction cycle and severely impacting efficiency. Especially in the construction of pile foundations with alternating positive and negative inclined piles, the entire pile driving equipment needs to be moved frequently, which obviously increases the construction cost and reduces the efficiency of pile planting, becoming a technical problem that the industry urgently needs to solve. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention aims to provide a piling frame that can be tilted and driven to perform vertical pile, positive inclined pile and negative inclined pile driving operations without moving the piling equipment.

[0005] To solve the above-mentioned technical problems, the present invention provides a piling frame for tilting and driving piles, including a lifting boom, a pile frame hinged on the lifting boom, a pile frame hydraulic cylinder installed on the pile frame, a pile frame sliding plate slidably supported on the pile frame, the pile frame sliding plate being connected to the pile frame hydraulic cylinder; a telescopic support rod is also hinged to the pile frame sliding plate, a telescopic rod hydraulic cylinder is installed on the telescopic support rod; and a pile clamping device is also installed on the pile frame.

[0006] In the above structure, since the pile frame is hinged to the crane boom, it can swing in the vertical plane around the hinge point of the crane boom. When the pile frame is in the vertical position, the pile hammer on the pile frame can perform pile driving operations for vertical piles; when the pile frame is in the backward tilt position, the pile hammer on the pile frame can perform pile driving operations for backward tilting angle; when the pile frame is in the forward tilt position, the pile hammer on the pile frame can perform pile driving operations for forward tilting angle. Furthermore, since a pile frame slide plate is slidably supported on the pile frame, and a telescopic strut is hinged to the pile frame slide plate, the telescopic strut extends forward or retracts backward under the drive of the telescopic strut hydraulic cylinder, allowing the pile frame to change its pile driving posture. This enables the pile frame to be in forward tilting, vertical, and backward tilting pile driving states, realizing the pile driving construction of inclined piles, vertical piles, and backward tilting piles. Furthermore, because a hydraulic cylinder is connected to the pile frame sliding plate, this hydraulic cylinder, together with the telescopic strut, drives the pile frame sliding plate on the pile frame. This allows for more flexible forward and backward tilting of the pile frame. Especially when the pile frame and the crane boom are at a dead point parallel to each other, the driving force of the telescopic strut cannot generate a swinging torque on the pile frame. In this case, the hydraulic cylinder can generate a swinging torque on the pile frame, causing the telescopic strut to drive the pile frame to swing around the dead point. A pile clamp is installed on the pile frame to reliably position the pile and stably position it in the piling position.

[0007] Furthermore, the pile frame sliding plate includes a sliding plate body with a sliding plate groove. The pile frame sliding plate is slidably supported on the slide rail of the pile frame through the sliding plate groove. The cylinder body of the pile frame hydraulic cylinder is mounted on the pile frame, and the extended end of the piston rod of the pile frame hydraulic cylinder is hinged to the pile frame sliding plate. The structure is simple and easy to install and maintain.

[0008] Furthermore, the telescopic strut includes a telescopic sleeve and a telescopic sliding rod, the sliding rod being slidably fitted inside the telescopic sleeve. The telescopic strut hydraulic cylinder is supported between the telescopic sleeve and the telescopic sliding rod; the telescopic sliding rod is hinged to the pile frame sliding plate. The cylinder body of the telescopic strut hydraulic cylinder is mounted on the telescopic sleeve, and the piston rod of the telescopic strut hydraulic cylinder is connected to the telescopic sliding rod. The telescopic sleeve of the telescopic strut is hinged to the boom platform, and the lifting boom is also hinged to the boom platform; the boom platform is a wheeled crane or a crawler crane. This allows for convenient extension and retraction of the telescopic strut.

[0009] Furthermore, the pile clamping device includes a pile clamping body, on which two symmetrical pile clamping claw arms are hinged. A pile clamping hydraulic cylinder is also installed on the pile clamping body. The piston rod end of the hydraulic cylinder is hinged to two pile clamping connecting rods, and the other end of each connecting rod is hinged to a corresponding pile clamping claw arm. The hinge points of the pile clamping claw arms on the pile clamping body and the hinge points of the connecting rods on the claw arms are spaced apart. A pile clamping connecting block is hinged to the piston rod end of the hydraulic cylinder. This connecting block is hinged to the connecting rods and is movably disposed in a pile clamping groove on the pile clamping body. The claw ends of the pile clamping claw arms are equipped with pile clamping fingers and pile clamping rollers. This enables the clamping and positioning of the pile. Attached Figure Description

[0010] The following description, in conjunction with the accompanying drawings and specific embodiments, further illustrates the piling frame of this utility model that can tilt and drive piles.

[0011] Figure 1 This is a structural schematic diagram of a specific embodiment of the piling frame with tilting and tilting capability of this utility model; Figure 2 yes Figure 1 Diagram showing the forward-tilting working condition of the structure shown. Figure 3 yes Figure 1 Diagram showing the backward tilting working condition of the structure. Figure 4 yes Figure 1 Installation structure diagram of hydraulic cylinder and telescopic strut of the central pile frame; Figure 5 yes Figure 4 Installation structure diagram of the telescopic strut and the telescopic strut hydraulic cylinder; Figure 6 yes Figure 5 A-A cross-sectional structural diagram; Figure 7 yes Figure 4 Front view of the sliding plate of the central pile frame; Figure 8 yes Figure 7 Top view; Figure 9 yes Figure 1 A three-dimensional structural diagram of a central clamping pile device; Figure 10 yes Figure 9 The front view; Figure 11 yes Figure 10 B-B cross-section view; In the diagram, 1—pile clamp, 101—pile clamping hydraulic cylinder, 102—pile clamping sliding block, 103—slider hinge pin, 104—pile clamp body, 105—pile clamping connecting rod, 106—claw arm hinge pin, 107—connecting rod claw arm hinge pin, 108—pile clamping claw arm, 109—pile clamping claw finger, 110—pile clamping roller, 111—pile clamping chute; 2—foundation pile; 3—pile frame; 4—pile hammer; 5—steel cable; 6—pile frame hydraulic cylinder; 7—pile frame 701—Slide body; 702—Upper hinge support of slide body; 703—Slide slide groove; 704—Lower hinge support of slide body; 8—Hydraulic cylinder of telescopic rod; 9—Telescopic strut; 901—Telescopic end mounting ear plate; 902—Piston rod mounting ear plate; 903—Telescopic end support plate; 904—Telescopic slide rod; 905—Telescopic sleeve; 906—Hydraulic cylinder body hinge support; 907—Sleeve tail end support plate; 10—Lifting boom; 11—Boom platform. Detailed Implementation

[0012] like Figure 1 The pile driving frame shown includes a lifting boom 10, the lower end of which is hinged to a boom platform 11. The boom platform 11 can be a crawler crane, a wheeled crane, a walking platform, or a ship's deck, etc. The upper end of the lifting boom 10 is hinged to a pile frame 3 via corresponding hinge supports. A steel cable pulley is installed at the top of the pile frame 3, and a pile hammer 4 is slidably supported on the pile frame 3. The pile hammer 4 is a cylindrical diesel pile hammer, but it can also be a hydraulic pile hammer, a guide rod diesel hammer, or a vibratory hammer, etc. A steel cable 5 used to lift the pile hammer 4 passes sequentially around the pulley at the top of the pile frame 3 and the pulley on the lifting boom 10, and is wound onto a winch on the boom platform 11. A pile clamp 1 for holding and straightening the foundation pile 2 is installed at the lower part of the pile frame 3.

[0013] A pile frame slide plate 7 is slidably installed on the other side of the pile frame 3 opposite to the pile hammer 4. A pile frame hydraulic cylinder 6 is also installed on this side of the pile frame 3. A telescopic support rod 9 is also hinged on the pile frame slide plate 7. The other end of the telescopic support rod 9 is hinged on the boom platform 11.

[0014] like Figure 2 As shown, the pile frame 3, which is hinged on the crane boom 10, is in a forward tilting state under the drive of the pile frame hydraulic cylinder 6 and / or the telescopic support rod 9. At this time, when the pile hammer 4 drives the pile, the foundation pile 2 is driven into the stratum along the forward tilting direction.

[0015] like Figure 3 As shown, the pile frame 3, which is hinged on the crane boom 10, is in a backward tilting state under the drive of the pile frame hydraulic cylinder 6 and / or the telescopic support rod 9. At this time, when the pile hammer 4 drives the pile, the foundation pile 2 is driven into the stratum along the backward tilting direction.

[0016] like Figure 4As shown, the cylinder body of the pile frame hydraulic cylinder 6 is mounted on the pile frame 3. The extended end of the piston rod of the pile frame hydraulic cylinder 6 is hinged to the pile frame sliding plate 7. A telescopic support rod 9 is also hinged to the pile frame sliding plate 7, and the other end of the telescopic support rod 9 is hinged to the boom platform 11. A telescopic hydraulic cylinder 8 is mounted on the telescopic support rod 9, and the telescopic hydraulic cylinder 8 is arranged parallel to the telescopic support rod 9.

[0017] like Figure 5 , Figure 6 As shown, the telescopic strut 9 includes a telescopic sleeve 905 and a telescopic sliding rod 904. The telescopic sliding rod 904 is slidably fitted into the telescopic sleeve 905. The cylinder body of the telescopic rod hydraulic cylinder 8 is hinged to the telescopic sleeve 905 of the telescopic strut 9 via a hydraulic cylinder body hinge support 906. The extended end of the piston rod of the telescopic rod hydraulic cylinder 8 is hinged to the telescopic end support plate 903 via a piston rod mounting ear plate 902. The telescopic end support plate 903 is fixedly installed on the extended end of the telescopic sliding rod 904. A telescopic end mounting ear plate 901 is fixedly installed on the telescopic end support plate 903. The telescopic end mounting ear plate 901 is hinged to the pile frame 3. The tail end of the telescopic sleeve 905 is hinged to the boom platform 11 via a sleeve tail end support plate 907.

[0018] like Figure 7 , Figure 8 As shown, the pile frame slide plate 7 includes a slide plate body 701, on which a slide plate groove 703 is provided. The pile frame slide plate 7 is slidably supported on the slide rail of the pile frame 3 through the slide plate groove 703. An upper hinge support 702 and a lower hinge support 704 are fixedly provided at the upper and lower ends of the slide plate body 701, respectively. The pile frame slide plate 7 is hinged to the piston rod of the pile frame hydraulic cylinder 6 through the upper hinge support 702, and the pile frame slide plate 7 is also hinged to the telescopic slide rod 904 of the telescopic support rod 9 through the lower hinge support 704. The telescopic end of the telescopic slide rod 904 is fitted with an ear plate 901 and hinged to the lower hinge support 704.

[0019] like Figure 9 , Figure 10 and Figure 11The pile clamp shown includes a pile clamp body 104, which has a box-plate structure. Two pile clamping claw arms 108 are hinged to the pile clamp body 104 by symmetrically arranged claw arm hinge pins 106, so that the two pile clamping claw arms 108 are symmetrically hinged to the pile clamp body 104. A pile clamping hydraulic cylinder 101 is also installed on the pile clamp body 104. A pile clamping slider 102 is movably arranged in the box cavity of the pile clamp body 104. The pile clamping slider 102 is hinged to the piston rod end of the pile hydraulic cylinder 101. Two pile clamping connecting rods 105 of equal length are hinged to the pile clamping slider 102 by slider hinge pins 103. The slider hinge pin 103 is slidably inserted into the pile clamping groove 111, allowing the pile clamping slider 102 to slide along the pile clamping groove 111 of the pile clamping device body 104. The other end of each pile clamping link 105 is hinged to the pile clamping claw arm 108 via a corresponding link claw arm hinge pin 107. The claw arm hinge pin 106 and the link claw arm hinge pin 107 are positioned at a distance on the claw arm 108, such that the hinge point of the pile clamping claw arm 108 on the pile clamping device body 104 is positioned at a distance from the hinge point of the pile clamping link 105 on the pile clamping claw arm 108. When the pile clamping hydraulic cylinder 101 symmetrically drives the two pile clamping links through the pile clamping slider 102, the pile clamping link 105 supports the corresponding side of the pile clamping claw arm 108 to swing around the claw arm hinge pin 106, thereby clamping or releasing the foundation pile.

[0020] Each pile-clamping claw arm 108 has two parallel pile-clamping claw fingers 109 and a pile-clamping roller 110 at its claw end. The pile-clamping claw fingers 109 are perpendicular to the pile-clamping claw arm 108, and the pile-clamping roller 110 is parallel to the pile-clamping claw arm 108. Nylon sleeves are movably fitted on both the pile-clamping claw fingers 109 and the pile-clamping roller 110.

[0021] The above are some preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make improvements and substitutions to the technical solutions described in the foregoing embodiments. Such substitutions and improvements that do not violate the spirit and principles of the present invention all fall within the protection scope of the present invention.

Claims

1. A piling frame capable of tilting and lowering for pile driving, comprising a lifting boom (10), characterized in that: The crane boom (10) is hinged with a pile frame (3), on which a pile frame hydraulic cylinder (6) is installed. The pile frame (3) is also slidably supported with a pile frame slide plate (7), which is connected to the pile frame hydraulic cylinder (6). The pile frame slide plate (7) is also hinged with a telescopic strut (9), on which a telescopic strut hydraulic cylinder (8) is installed. The pile frame (3) is also equipped with a pile clamp (1).

2. The piling frame capable of tilting and driving piles according to claim 1, characterized in that: The pile frame slide plate (7) includes a slide plate body (701), and a slide plate groove (703) is provided on the slide plate body (701). The pile frame slide plate (7) is slidably supported on the slide rail of the pile frame (3) through the slide plate groove (703).

3. The piling frame capable of tilting and driving piles according to claim 1 or 2, characterized in that: The cylinder body of the pile frame hydraulic cylinder (6) is installed on the pile frame (3), and the piston rod of the pile frame hydraulic cylinder (6) is hinged to the pile frame sliding plate (7).

4. The piling frame capable of tilting and driving piles according to claim 1, characterized in that: The telescopic strut (9) includes a telescopic sleeve (905) and a telescopic slide rod (904). The telescopic slide rod (904) is slidably fitted inside the telescopic sleeve (905). The telescopic rod hydraulic cylinder (8) is supported between the telescopic sleeve (905) and the telescopic slide rod (904). The telescopic slide rod (904) is hinged to the pile frame slide plate (7).

5. The piling frame capable of tilting and driving piles according to claim 1 or 4, characterized in that: The cylinder body of the telescopic rod hydraulic cylinder (8) is mounted on the telescopic sleeve (905), and the piston rod of the telescopic rod hydraulic cylinder (8) is connected to the telescopic slide rod (904).

6. The piling frame capable of tilting and driving piles according to claim 1, characterized in that: The telescopic sleeve (905) of the telescopic strut (9) is hinged on the boom platform (11), and the lifting boom (10) is also hinged on the boom platform (11); the boom platform (11) is a wheeled crane or a crawler crane.

7. The piling frame capable of tilting and driving piles according to claim 1, characterized in that: The pile clamp (1) includes a pile clamp body (104), on which two symmetrical pile clamping claw arms (108) are hinged; a pile clamping hydraulic cylinder (101) is also installed on the pile clamp body (104), and the piston rod end of the pile clamping hydraulic cylinder (101) is hinged to two pile clamping connecting rods (105), and the other end of the pile clamping connecting rod (105) is hinged to the corresponding pile clamping claw arm (108).

8. The piling frame capable of tilting and driving piles according to claim 7, characterized in that: The pile clamping claw arm (108) is positioned at a distance from the hinge point of the pile clamping device body (104) and the hinge point of the pile clamping connecting rod (105) on the pile clamping claw arm (108).

9. The piling frame capable of tilting and driving piles according to claim 7, characterized in that: The piston rod end of the hydraulic cylinder (101) for clamping piles is hinged to a clamping block (102), which is hinged to the clamping rod (105). The clamping block (102) is movably disposed in the clamping groove (111) on the body of the clamping device (104).

10. The piling frame capable of tilting and driving piles according to claim 7, 8 or 9, characterized in that: The claw end of the pile clamping claw arm (108) is provided with pile clamping claw fingers (109) and pile clamping rollers (110).

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