Rotary oil supply connector and photovoltaic pile power head

Abstract

The utility model relates to a rotary oil supply joint and a photovoltaic pile power head, the rotary oil supply joint comprises an outer cylinder and an inner cylinder, the outer cylinder is rotatably matched with the inner cylinder, an annular groove is arranged between the outer cylinder and the inner cylinder, a first channel is arranged on the inner cylinder in a penetrating mode, one end of the first channel is communicated with the annular groove, and the other end of the first channel is communicated with the annular groove. A second channel is formed in the outer cylinder in a penetrating mode, and one end of the second channel communicates with the annular groove. The problem that in the prior art, when a hydraulic clamping system on a photovoltaic pile power head clamps and fixes a photovoltaic pile and rotates, an oil conveying guide pipe of a hydraulic system is prone to winding is solved.

Description

Technical Field

[0001] This utility model relates to the field of building construction equipment technology, specifically to a rotary oil supply joint and a photovoltaic pile power head. Background Technology

[0002] During the construction of bridges, culverts, or high-rise buildings, pile driving may be required for the foundation. Currently, the main methods for driving photovoltaic (PV) piles into the soil include rotary driving, hammer penetration, static load driving, and vibratory penetration. In rotary driving, the PV pile is generally driven into the soil by a pile driver's power head and drill rod, which apply downward pressure and torque. The PV pile is clamped and fixed by a hydraulic system on the power head. The rotation of the hydraulic system drives the PV pile to rotate synchronously, which makes the hydraulic system's oil delivery pipes prone to entanglement. Utility Model Content

[0003] One objective of this utility model is to provide a rotary oil supply joint to solve the problem that the oil supply pipe of the hydraulic system is prone to entanglement when the existing photovoltaic pile power head hydraulic clamping system clamps and fixes the photovoltaic pile and rotates; the second objective is to propose a photovoltaic pile power head.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A rotary oil supply connector includes an outer cylinder and an inner cylinder, the outer cylinder and the inner cylinder being rotatably coupled, an annular groove being formed between the outer cylinder and the inner cylinder, a first channel being formed through the inner cylinder, one end of the first channel being connected to the annular groove, and a second channel being formed through the outer cylinder, one end of the second channel being connected to the annular groove.

[0006] Furthermore, the axis of the inner cylinder, the axis of the outer cylinder, and the axis of the annular groove are collinear.

[0007] Furthermore, there are two annular grooves, which are arranged at intervals along the axial direction of the inner cylinder. There are two first channels, each corresponding to one of the annular grooves, and two second channels, each corresponding to one of the annular grooves.

[0008] On the other hand, this utility model also proposes a photovoltaic pile power head, including the above-mentioned rotary oil supply joint, and also includes a rotary drive and a hydraulic clamping mechanism. The output end of the rotary drive is fixedly provided with an output shaft, and the hydraulic clamping mechanism is fixedly installed on the output shaft. Either the inner cylinder or the outer cylinder is fixedly installed on the output shaft and an oil supply conduit is provided between it and the hydraulic clamping mechanism, and the other cylinder can rotate relative to the output shaft.

[0009] Furthermore, a mounting bracket is provided on the outer side of the rotary drive component, and the rotary drive component is fixedly mounted on the mounting bracket. An anti-rotation plate is provided between the inner cylinder and the mounting bracket. One end of the anti-rotation plate is fixedly connected to the inner cylinder, and the other end is fixedly connected to the mounting bracket.

[0010] Furthermore, the anti-rotation plate includes an annular plate and an L-shaped plate. The top of the inner cylinder protrudes outside the outer cylinder. The annular plate is fixedly installed on the top of the inner cylinder. One end of the L-shaped plate is fixedly connected to the outer wall of the annular plate, and the other end is fixedly connected to the mounting bracket.

[0011] Furthermore, the hydraulic clamping mechanism includes a clamping plate assembly and a telescopic component assembly. The telescopic component assembly includes at least one hydraulic cylinder arranged circumferentially along the output shaft. The hydraulic cylinder is fixedly mounted on the mounting plate. The clamping plate assembly includes a plurality of pile clamping plates evenly arranged circumferentially along the output shaft.

[0012] Furthermore, one of the pile clamps is fixedly mounted on the mounting plate, and the remaining pile clamps correspond one-to-one with the hydraulic cylinders. The telescopic end of the hydraulic cylinder is fixedly connected to the outer side of the corresponding pile clamp. The hydraulic cylinder is used to drive the corresponding pile clamp to move towards or away from the output shaft.

[0013] Furthermore, each pile clamp is paired with a hydraulic cylinder, and the telescopic end of the hydraulic cylinder is fixedly connected to the outer side of the corresponding pile clamp. The hydraulic cylinder is used to drive the corresponding pile clamp to move towards or away from the output shaft.

[0014] Furthermore, a connecting device is fixedly provided on the top of the mounting bracket.

[0015] The beneficial effects of this utility model are:

[0016] By setting up rotating outer and inner cylinders, one cylinder can be fixed in place while the other cylinder is fixedly connected to the rotating hydraulic system. The cylinder rotates synchronously with the hydraulic system, and the oil delivery pipes laid between the two will not become entangled. Furthermore, by setting up an annular groove, a first channel, and a second channel, hydraulic oil can flow between the first channel, the annular groove, and the second channel, thereby outputting external hydraulic oil to the rotating hydraulic system without causing the oil delivery pipes to become entangled.

[0017] By installing a rotary oil supply connector outside the output shaft of the rotary drive, external hydraulic oil can be output to the rotating hydraulic clamping mechanism. The rotary drive drives the output shaft to rotate, which in turn drives the hydraulic clamping mechanism to rotate. This allows the output shaft to drive the drill rod to twist, while the hydraulic clamping mechanism clamps and fixes the photovoltaic pile and drives the photovoltaic pile to twist synchronously. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the rotary oil supply connector in this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the photovoltaic pile power head in this utility model. Figure 1 ;

[0020] Figure 3 This is a schematic diagram of the structure of the photovoltaic pile power head in this utility model. Figure 2 ;

[0021] Figure 4 This is a schematic diagram of the installation structure of the rotary oil supply connector in this utility model.

[0022] The components include: 1. Hydraulic motor assembly; 2. Planetary reducer assembly; 3. Pulley connecting device; 4. Anti-rotation plate; 41. Annular plate; 42. L-shaped plate; 5. Rotary oil supply joint; 51. Outer cylinder; 52. Inner cylinder; 6. Annular groove; 7. Mounting plate; 8. First channel; 9. Second channel; 10. Mounting ring; 11. Base; 12. Oil supply conduit; 13. Hydraulic cylinder; 14. Pile clamping plate; and 15. Output shaft. Detailed Implementation

[0023] The embodiments of this utility model will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be understood that the preferred embodiments are only for illustrating this utility model and not for limiting the scope of protection of this utility model.

[0024] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0025] This embodiment proposes a rotary oil supply connector, such as... Figure 1As shown, the system includes an outer cylinder 51 and an inner cylinder 52, which are rotatably connected by bearings. The inner diameter of the outer cylinder 51 is equal to the outer diameter of the inner cylinder 52. An annular groove 6 is formed between the outer cylinder 51 and the inner cylinder 52. A first channel 8 is formed through the inner cylinder 52. In this embodiment, the top end of the inner cylinder 52 protrudes beyond the top end of the outer cylinder 51, and the bottom end of the inner cylinder 52 is flush with the bottom end of the outer cylinder 51. One end of the first channel 8 communicates with the annular groove 6, and the other end penetrates the top end face or the outer side wall of the top end of the inner cylinder 52. A second channel 9 is formed through the outer cylinder 51, with one end communicating with the annular groove 6 and the other end penetrating the outer side wall of the outer cylinder 51. In this embodiment, one of the inner cylinder 52 or the outer cylinder 51 is fixedly connected to the rotating element and a pipe is laid between them, while the other cylinder remains stationary. The external medium is connected to the channel on the stationary cylinder through the pipe. The medium flows into the annular groove 6 and then into the channel on the cylinder fixedly connected to the rotating element. Finally, it flows into the rotating element through the pipe, and the pipe will not become entangled.

[0026] The axes of the inner cylinder 52, the outer cylinder 51, and the annular groove 6 are collinear, resulting in a simple structure and uniform medium output.

[0027] There are two annular grooves 6, which are arranged axially along the inner cylinder 52. There are two first channels 8, each corresponding to one of the annular grooves 6, and two second channels 9, each corresponding to one of the annular grooves 6. In this embodiment, since the rotating component is a hydraulic system (i.e., hydraulic cylinder 13), by setting two annular grooves 6 and corresponding channels, and by switching the direction of medium (hydraulic oil) entry, the rapid extension and retraction of the hydraulic cylinder 13 can be achieved, making the control of the hydraulic cylinder 13 more stable and efficient.

[0028] On the other hand, this utility model also proposes a photovoltaic pile power head, such as Figures 2 to 4 As shown, the device includes the aforementioned rotary oil supply connector 5, a rotary drive component, and a hydraulic clamping mechanism. An output shaft 15 is fixedly mounted on the output end of the rotary drive component. The hydraulic clamping mechanism is fixedly mounted on the output shaft 15 of the rotary drive component. Either the inner cylinder 52 or the outer cylinder 51 is fixedly mounted on the output shaft 15 of the rotary drive component and has an oil supply conduit 12 between it and the hydraulic clamping mechanism. The other cylinder is capable of relative rotation with respect to the output shaft 15. The axis of the inner cylinder 52 is collinear with the axis of the output shaft 15, and the inner diameter of the inner cylinder 52 is larger than the outer diameter of the output shaft 15. In this embodiment, the rotary drive component is preferably a hydraulic motor, which can supply hydraulic oil to the hydraulic cylinder 13 while remaining stationary on its own side, resulting in high energy utilization. A planetary reducer assembly 2 is provided at the output end of the hydraulic motor. The top end of the output shaft 15 is fixedly mounted on the bottom of the planetary reducer assembly 2. The structure of the planetary reducer assembly 2 has been fully disclosed in the prior art and will not be described in detail here.

[0029] The hydraulic motor is mounted on a mounting bracket on its outer side. The hydraulic motor is fixedly mounted on the mounting bracket, and the hydraulic motor and the mounting bracket together form the hydraulic motor assembly 1.

[0030] In practice, the inner cylinder 52 can be fixedly fitted onto the output shaft 15 by a fixing ring. Specifically, a fixing ring is fixedly installed at the top of the inner cylinder 52, and the fixing ring is fixedly fitted onto the output shaft 15. An anti-rotation plate 4 is provided between the outer cylinder 51 and the mounting frame. In this embodiment, an anti-rotation plate 4 is provided between the inner cylinder 52 and the mounting frame. One end of the anti-rotation plate 4 is fixedly connected to the inner cylinder 52, and the other end is fixedly connected to the mounting frame. The anti-rotation plate 4 includes an annular plate 41 and an L-shaped plate 42. The annular plate 41 is fixedly installed on the top of the inner cylinder 52, and one end of the L-shaped plate 42 is fixedly connected to the outer wall of the annular plate 41, and the other end is fixedly connected to the mounting frame. With this structural design, the hydraulic motor drives the output shaft 15 to rotate, and the output shaft 15 drives the outer cylinder 51 to rotate synchronously. The inner cylinder 52 is fixed in place under the action of the anti-rotation plate 4. The structure is simple and easy to install. In this embodiment, the inner diameter and outer diameter of the annular plate 41 are equal to the inner diameter and outer diameter of the inner cylinder 52, respectively.

[0031] In the above embodiment, an oil supply conduit 12 is provided between the first channel 8 and the hydraulic motor assembly 1, so that the hydraulic oil that is stationary on the hydraulic motor side can be output to the rotary oil supply joint 5 through the oil supply conduit 12.

[0032] An installation plate 7 is fixedly mounted on the middle of the output shaft 15 to facilitate the installation of other structural components. In this embodiment, the hydraulic clamping mechanism is located at the bottom of the installation plate 7, and the rotary oil supply connector 5 is located at the top of the installation plate 7. Specifically, an installation ring 10 is fixedly provided on the bottom end face of the outer cylinder 51. The inner diameter of the installation ring 10 is equal to the inner diameter of the outer cylinder 51, and the outer diameter of the installation ring 10 is larger than the outer diameter of the outer cylinder 51. The installation ring 10 and the outer cylinder 51 are fixedly connected by countersunk bolts. The installation ring 10 is fixedly mounted on the installation plate 7 by bolts, thereby realizing the fixed connection between the outer cylinder 51 and the output shaft 15. The hydraulic clamping mechanism includes a clamping plate assembly and a telescopic component assembly. The telescopic component assembly includes at least one hydraulic cylinder 13 arranged circumferentially along the output shaft 15. Each hydraulic cylinder 13 is provided with a base 11 between itself and the mounting plate 7. The base 11 is fixedly installed at the bottom of the mounting plate 7. One end of the hydraulic cylinder 13 is hinged to the base 11 through a cylinder pin. The clamping plate assembly includes several pile clamping plates 14 evenly arranged circumferentially along the output shaft 15. In this embodiment, the pile clamping plates 14 are arc-shaped and the inner side of the pile clamping plates 14 matches the photovoltaic pile.

[0033] In one feasible implementation, one pile clamping plate 14 is fixedly installed at the bottom of the mounting plate 7 with its inner side in contact with the photovoltaic pile. The remaining pile clamping plates 14 are movably arranged below the mounting plate 7 and correspond one-to-one with the hydraulic cylinders 13. The telescopic end of the hydraulic cylinder 13 is hinged to the corresponding pile clamping plate 14 through a piston pin. The outer wall of the pile clamping plate 14 matches the inner wall of the base 11, and the pile clamping plate 14 and the base 11 are in sliding engagement. The base 11 can slide guide and limit the pile clamping plate 14. In this embodiment, there are preferably two pile clamping plates 14 and one hydraulic cylinder 13. The telescopic movement of the hydraulic cylinder 13 drives the corresponding pile clamping plate 14 to move closer to or away from the output shaft 15, thereby clamping or releasing the photovoltaic pile. The overall structure is simple and the cost is low.

[0034] In another feasible implementation, the pile clamping plates 14 correspond one-to-one with the hydraulic cylinders 13. The telescopic end of the hydraulic cylinder 13 is hinged to the corresponding pile clamping plate 14 through a piston pin. The hydraulic cylinder 13 is used to drive the corresponding pile clamping plate 14 to move closer to or away from the output shaft 15, thereby clamping or releasing the photovoltaic pile. In this embodiment, there are preferably two or three pile clamping plates 14, which makes the stability of the photovoltaic pile stronger.

[0035] In the above embodiments, it should be noted that each hydraulic cylinder 13 corresponds to two second channels 9, that is, these two second channels 9 are connected to the oil inlet of the hydraulic cylinder 13 through the oil supply conduit 12. When there are multiple hydraulic cylinders 13, if the two second channels 9 corresponding to the hydraulic cylinder 13 form a channel group, then the outer cylinder 51 is provided with a channel group and an oil supply conduit 12 corresponding to each hydraulic cylinder 13 along the circumferential direction, so as to supply oil to all hydraulic cylinders 13.

[0036] The top of the mounting bracket is fixedly equipped with a punching and pulling machine connection device 3, which is used to connect with the punching and pulling machine to provide downward driving force.

[0037] Working principle:

[0038] The entire power head is mounted on the drilling and pulling machine via the connecting device 3. The hydraulic motor drives the output shaft 15 to rotate after being reduced in speed by the planetary reducer assembly 2. The output shaft 15 drives the drill rod to rotate. At the same time, the output shaft 15 drives the mounting plate 7 to rotate. The rotation of the mounting plate 7 drives the outer cylinder 51, the hydraulic cylinder 13, the pile clamping plate 14, and the oil supply pipe 12 between the outer cylinder 51 and the hydraulic cylinder 13 to rotate synchronously. Under the combined action of the first channel 8, the annular groove 6, the second channel 9, and the oil supply pipe 12, the stationary hydraulic oil on the hydraulic motor side can be output to the rotating hydraulic cylinder 13, so that the output shaft 15 can drive the drill rod to rotate, and the hydraulic cylinder 13 can clamp the photovoltaic pile and drive the photovoltaic pile to rotate, realizing the functions of the photovoltaic pile's rotation and pressing.

[0039] The above embodiments are merely preferred embodiments provided to fully illustrate the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present utility model are all within the protection scope of the present utility model.

Claims

1. A rotary oil supply joint, characterized in that: It includes an outer cylinder and an inner cylinder, the outer cylinder and the inner cylinder are rotatably connected, an annular groove is formed between the outer cylinder and the inner cylinder, a first channel is formed through the inner cylinder, one end of the first channel is connected to the annular groove, and a second channel is formed through the outer cylinder, one end of the second channel is connected to the annular groove.

2. The rotary oil supply joint according to claim 1, characterized in that: The axes of the inner cylinder, the outer cylinder, and the annular groove are collinear.

3. The rotary oil supply joint according to claim 1, characterized in that: There are two annular grooves, which are arranged at intervals along the axial direction of the inner cylinder. There are two first channels, which correspond one-to-one with the annular grooves, and two second channels, which also correspond one-to-one with the annular grooves.

4. A photovoltaic pile power head, comprising a rotary oil supply joint as described in any one of claims 1-3, characterized in that: It also includes a rotary drive and a hydraulic clamping mechanism. The output end of the rotary drive is fixedly provided with an output shaft. The hydraulic clamping mechanism is fixedly installed on the output shaft. One of the inner cylinder and the outer cylinder is fixedly installed on the output shaft and is provided with an oil supply pipe between them and the hydraulic clamping mechanism. The other cylinder can rotate relative to the output shaft.

5. The photovoltaic pile power head according to claim 4, characterized in that: The rotating drive component is provided with a mounting bracket on its outer side. The rotating drive component is fixedly mounted on the mounting bracket. An anti-rotation plate is provided between the inner cylinder and the mounting bracket. One end of the anti-rotation plate is fixedly connected to the inner cylinder, and the other end is fixedly connected to the mounting bracket.

6. The photovoltaic pile power head according to claim 5, characterized in that: The anti-rotation plate includes an annular plate and an L-shaped plate. The top of the inner cylinder protrudes outside the outer cylinder. The annular plate is fixedly installed on the top of the inner cylinder. One end of the L-shaped plate is fixedly connected to the outer wall of the annular plate, and the other end is fixedly connected to the mounting bracket.

7. The photovoltaic pile power head according to claim 4, characterized in that: An mounting plate is fixedly fitted onto the output shaft. The hydraulic clamping mechanism includes a clamping plate assembly and a telescopic component assembly. The telescopic component assembly includes at least one hydraulic cylinder arranged circumferentially along the output shaft. The hydraulic cylinder is fixedly mounted on the mounting plate. The clamping plate assembly includes several pile clamping plates evenly arranged circumferentially along the output shaft.

8. The photovoltaic pile power head according to claim 7, characterized in that: One of the pile clamps is fixedly mounted on the mounting plate, and the remaining pile clamps correspond one-to-one with the hydraulic cylinders. The telescopic end of the hydraulic cylinder is fixedly connected to the outer side of the corresponding pile clamp. The hydraulic cylinder is used to drive the corresponding pile clamp to move towards or away from the output shaft.

9. A photovoltaic pile power head according to claim 7, characterized in that: Each pile clamp plate corresponds to a hydraulic cylinder. The telescopic end of the hydraulic cylinder is fixedly connected to the outer side of the corresponding pile clamp plate. The hydraulic cylinder is used to drive the corresponding pile clamp plate to move towards or away from the output shaft.

10. The photovoltaic pile power head according to claim 5, characterized in that: A connecting device is fixedly provided on the top of the mounting bracket.

Images