Reducing guide hole combination device for photovoltaic support pipe pile foundation in frozen soil area
By designing a photovoltaic support pipe pile foundation variable diameter guide combination device combining the main shaft, the secondary shaft and multiple broken drill bits in the permafrost area, the problem of inefficient traditional broken drill bits in the permafrost area is solved, and more efficient soil excavation and hole guide operation is achieved.
Patent Information
- Application Number
- CN202421143705.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-05-24
AI Technical Summary
In the permafrost area, traditional soil-breaking drill bits have only one soil-breaking end, and the soil-breaking effect is poor, making it difficult to effectively crush the soil and send it out in an environment with high soil compactness, resulting in problems with the stability, reliability and construction efficiency of the pipe pile foundation.
A combination device for photovoltaic support pipe pile foundation variable diameter guide holes in the frozen soil area is designed, using a combined structure of the main shaft and the secondary shaft, combining spiral guide vanes of different diameters and multiple soil breaking drill bits. By optimizing the structure of the shaft part, the excavation resistance is reduced, the drilling speed is accelerated, and the soil discharge efficiency is improved through multiple deflectors.
It effectively reduces the excavation resistance during the soil diversion process, speeds up drilling and unearthing speeds, improves the hole diversion efficiency, ensures the perpendicularity of the hole diversion hole, and solves the problem of inefficiency of traditional soil-breaking drills in the frozen soil area.
Smart Images
Figure CN222558465U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of construction engineering, in particular to a variable diameter hole-guiding combined device for a photovoltaic support pipe pile foundation in a frozen soil area. Background Art
[0002] In recent years, my country has adjusted its energy structure and insisted on green and low-carbon development. It is the inevitable choice for the energy and power industry to shoulder responsibilities, seize opportunities and optimize development under the new situation. Photovoltaic brackets and components often use PHC pipe piles as the foundation, but in high-altitude and cold areas, the permafrost layer is generally deep. Within the thickness of the permafrost layer, 200mm around the pipe piles need to be replaced with sand or graded sand and gravel and other materials to reduce the impact of permafrost on the pipe piles.
[0003] In the existing technology, the bottom of the pipe pile needs to reach the bearing layer. When the bearing layer is hard soil, holes need to be drilled in the area below the frozen soil layer. The stability, reliability, construction efficiency and other issues of the pipe pile foundation have also become difficult problems that need to be overcome.
[0004] However, the traditional soil-breaking drill bit for pipe columns has only one soil-breaking end, so the soil-breaking effect is poor. In an environment with high soil compactness, it is difficult to crush the soil and send it out. Therefore, the utility model proposes a variable-diameter hole-guiding combination device for the foundation of photovoltaic support pipe piles in frozen soil areas to solve the above problems. Utility Model Content
[0005] The purpose of the utility model is to provide a variable diameter hole assembly device for a photovoltaic support pipe pile foundation in a frozen soil area to solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a variable diameter hole-guiding assembly device for a photovoltaic support pipe pile foundation in a frozen soil region, the variable diameter hole-guiding assembly device for a photovoltaic support pipe pile foundation in a frozen soil region comprises: a main rotating shaft, a first spiral guide vane is arranged on the main rotating shaft, an outer earth-breaking drill bit is fixed to the end of the first spiral guide vane, a secondary rotating shaft is fixed to the lower end of the main rotating shaft, a second spiral guide vane is arranged on the secondary rotating shaft, the diameter of the first spiral guide vane is greater than the diameter of the second spiral guide vane, and a central earth-breaking drill bit is fixed to the end of the secondary rotating shaft;
[0007] A connecting frame is installed on the main rotating shaft, an inserting cavity is provided on the end surface of the connecting frame, a guide rod is fixed beside the inserting cavity, a first mounting hole is provided on the surface of the connecting frame, and the first mounting hole passes through the inserting cavity;
[0008] A support plate, one end of the support plate is fixed with a square steel, the other end of the support plate is fixed with a transmission plate, the lower end of the transmission is fixed with a guide plate, the surface of the support plate is provided with a guide hole, the surface of the square steel is provided with a second mounting hole, the surface of the guide plate is provided with a guide groove, there are several guide grooves, and the several guide grooves are evenly distributed on the surface of the guide plate.
[0009] Preferably, the outer earth-breaking drill bits are provided with four groups, and the four groups of outer earth-breaking drill bits are equidistantly distributed in an annular manner on the first spiral guide vane. A mechanical connection main part is fixed to the upper end of the main rotating shaft, and the mechanical connection main part is used to connect with the connecting mechanical device.
[0010] Preferably, the connecting frame is located above the first spiral guide vane, and four groups of guide rods are provided. The four groups of guide rods are respectively located at four ends of the end surface of the connecting frame, and the end surfaces of the guide rods are chamfered.
[0011] Preferably, the outer wall of the square steel and the inner wall of the insertion cavity are slidably connected, threaded rods are provided in the first mounting hole and the second mounting hole, and nuts are provided at both ends of the threaded rods.
[0012] Preferably, the guide holes are provided in four groups, and the four groups of guide holes are respectively located at four ends of the surface of the support plate, and the inner wall of the guide hole and the outer wall of the guide rod are slidably connected.
[0013] Preferably, the guide plates are in the shape of square plates, and four groups of guide plates are provided, and the four groups of guide plates are linearly distributed at equal distances below the transmission plate.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] The variable diameter hole-guiding combination device for the photovoltaic support pipe pile foundation in frozen soil areas proposed in the present invention combines the first spiral guide vane and the second spiral guide vane of different diameters in the structure through targeted optimization of the rotating shaft position, thereby reducing the excavation resistance in the process of soil guiding, accelerating the drilling, improving the excavation speed, and accelerating the efficiency of hole guiding. A plurality of guide plates are arranged on the top of the main rotating shaft to discharge the soil guided out by the spiral in time to avoid repeated falling of the soil body, reduce the repeated discharge of soil by the spiral guide vane, and thus improve the hole guiding efficiency. Four symmetrical outer earth-breaking drill bits are added below the position of the first spiral guide vane to ensure the verticality of the hole guiding, and a central earth-breaking drill bit is used at the bottom of the secondary rotating shaft to ensure the verticality of the hole guiding, thus avoiding the problem that the earth-breaking drill bit used for the traditional pipe column has only one earth-breaking end, the earth-breaking effect is poor, and it is difficult to crush the soil and send it out in an environment with high soil compactness. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2 This is a detailed diagram of the structure of the utility model;
[0018] Figure 3 This is a schematic diagram of the structure of the connecting frame of the utility model;
[0019] Figure 4 This is a schematic diagram of the structure of the guide plate of the utility model.
[0020] In the figure: 1. main mechanical connection part; 2. connecting frame; 3. main rotating shaft; 4. first spiral guide vane; 5. outer earth-breaking drill bit; 6. second spiral guide vane; 7. secondary rotating shaft; 8. guide plate; 9. transmission plate; 10. support plate; 11. central earth-breaking drill bit; 12. guide groove; 13. threaded rod; 14. nut; 15. first mounting hole; 16. insertion cavity; 17. guide rod; 18. square steel; 19. second mounting hole; 20. guide hole. DETAILED DESCRIPTION
[0021] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] In the description of the present utility model, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0024] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments can be used in combination with each other.
[0025] Embodiment 1
[0026] See also Figures 1 to 4 The utility model provides a technical solution: a variable diameter hole guide assembly device for a photovoltaic support pipe pile foundation in a frozen soil region, the variable diameter hole guide assembly device for a photovoltaic support pipe pile foundation in a frozen soil region comprises: a main rotating shaft 3, a first spiral guide vane 4 is arranged on the main rotating shaft 3, an outer earth-breaking drill bit 5 is fixed to the end of the first spiral guide vane 4, a secondary rotating shaft 7 is fixed to the lower end of the main rotating shaft 3, a second spiral guide vane 6 is arranged on the secondary rotating shaft 7, the diameter of the first spiral guide vane 4 is greater than the diameter of the second spiral guide vane 6, and a central earth-breaking drill bit 11 is fixed to the end of the secondary rotating shaft 7;
[0027] The connecting frame 2 is mounted on the main shaft 3, an inserting cavity 16 is provided on the end surface of the connecting frame 2, a guide rod 17 is fixed next to the inserting cavity 16, a first mounting hole 15 is provided on the surface of the connecting frame 2, the first mounting hole 15 passes through the inserting cavity 16, a square steel 18 is fixed to one end of the support plate 10, a transmission plate 9 is fixed to the other end of the support plate 10, a guide plate 8 is fixed to the lower end of the transmission, a guide hole 20 is provided on the surface of the support plate 10, and a second mounting hole 19 is provided on the surface of the square steel 18;
[0028] When in use, through targeted optimization of the rotating shaft position, a combination of first spiral guide vanes 4 and second spiral guide vanes 6 of different diameters is performed in the structure to reduce the excavation resistance during the earth-guiding process, speed up drilling, increase the excavation speed, and increase the efficiency of hole guiding.
[0029] Embodiment 2
[0030] On the basis of the first embodiment, four groups of outer earth-breaking drill bits 5 are provided, and the four groups of outer earth-breaking drill bits 5 are equidistantly distributed in an annular manner on the first spiral guide vane 4. A mechanical connection main part 1 is fixed to the upper end of the main rotating shaft 3, and the mechanical connection main part 1 is used to connect with the connecting mechanical device. When in use: four symmetrical outer earth-breaking drill bits 5 are added below the position of the first spiral guide vane 4 to ensure the verticality of the lead hole, and a central earth-breaking drill bit 11 is used at the bottom of the secondary rotating shaft 7 to ensure the verticality of the lead hole;
[0031] The guide plate 8 is in the shape of a square plate. There are four groups of guide plates 8. The four groups of guide plates 8 are equidistantly linearly distributed below the transmission plate 9. A guide groove 12 is opened on the surface of the guide plate 8. There are a plurality of guide grooves 12. The plurality of guide grooves 12 are evenly distributed on the surface of the guide plate 8. When in use: a plurality of guide plates 8 are arranged on the top of the main shaft 3 to discharge the soil led out by the spiral in time to avoid repeated falling of the soil, reduce the repeated discharge of soil by the spiral guide vane, thereby improving the hole drawing efficiency, and the plurality of guide grooves 12 can increase the contact area between the guide plate 8 and the soil led out by the spiral, and improve the continuity and stability of the discharge.
[0032] Embodiment 3
[0033] On the basis of the second embodiment, the connecting frame 2 is located above the first spiral guide vane 4, and four groups of guide rods 17 are provided. The four groups of guide rods 17 are respectively located at the four ends of the end face of the connecting frame 2, and the end face of the guide rod 17 is chamfered. Four groups of guide holes 20 are opened, and the four groups of guide holes 20 are respectively located at the four ends of the surface of the support plate 10. The inner wall of the guide hole 20 and the outer wall of the guide rod 17 are slidably connected. When in use: the end face of the guide rod 17 is chamfered, which is conducive to the rapid insertion of the guide rod 17 into the guide hole 20 and improves fluency.
[0034] The outer wall of the square steel 18 and the inner wall of the insertion cavity 16 are slidably connected, and a threaded rod 13 is provided in the first mounting hole 15 and the second mounting hole 19, and nuts 14 are provided at both ends of the threaded rod 13. When in use: first, insert the square steel 18 into the insertion cavity 16. When the square steel 18 is fully inserted into the insertion cavity 16, the first mounting hole 15 and the second mounting hole 19 correspond to each other, and then the threaded rod 13 and the nut 14 are installed, which is more convenient and reduces the alignment operation of the mounting holes, thereby facilitating the installation and disassembly operations of the guide plate 8, and facilitating the subsequent inspection and maintenance of the guide plate 8. Among them, the guide rod 17 is correspondingly inserted into the guide hole 20, which can provide guidance and support, and improve the stability of operation.
[0035] Working principle: In actual use, through targeted optimization of the rotating shaft position, a combination of the first spiral guide vane 4 and the second spiral guide vane 6 of different diameters is performed in the structure to reduce the excavation resistance in the process of earth-guiding, speed up drilling, improve the excavation speed, and speed up the efficiency of hole-guiding. A plurality of guide plates 8 are arranged on the top of the main rotating shaft 3 to discharge the soil led out by the spiral in time to avoid repeated falling of the soil body, reduce the repeated discharge of soil by the spiral guide vane, and thus improve the efficiency of hole-guiding. Four symmetrical outer earth-breaking drill bits 5 are added below the position of the first spiral guide vane 4 to ensure the verticality of the hole-guiding, and a central earth-breaking drill bit 11 is used at the bottom of the secondary rotating shaft 7 to ensure the verticality of the hole-guiding. This avoids the problem that the earth-breaking drill bit used in the traditional pipe column has only one earth-breaking end, the earth-breaking effect is poor, and it is difficult to crush the soil and send it out in an environment with high soil compaction.
[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A variable diameter hole assembly device for the foundation of photovoltaic support pipe piles in frozen soil areas, characterized by: The variable diameter hole-guiding assembly device for a photovoltaic support pipe pile foundation in a frozen soil region comprises: a main rotating shaft (3), a first spiral guide vane (4) is arranged on the main rotating shaft (3), an outer ground-breaking drill bit (5) is fixed to the end of the first spiral guide vane (4), a secondary rotating shaft (7) is fixed to the lower end of the main rotating shaft (3), a second spiral guide vane (6) is arranged on the secondary rotating shaft (7), the diameter of the first spiral guide vane (4) is greater than the diameter of the second spiral guide vane (6), and a central ground-breaking drill bit (11) is fixed to the end of the secondary rotating shaft (7); A connecting frame (2), the connecting frame (2) is mounted on the main rotating shaft (3), an inserting cavity (16) is provided on the end surface of the connecting frame (2), a guide rod (17) is fixed beside the inserting cavity (16), a first mounting hole (15) is provided on the surface of the connecting frame (2), and the first mounting hole (15) passes through the inserting cavity (16); A support plate (10), one end of the support plate (10) is fixed with a square steel (18), the other end of the support plate (10) is fixed with a transmission plate (9), the lower end of the transmission is fixed with a guide plate (8), the surface of the support plate (10) is provided with a guide hole (20), the surface of the square steel (18) is provided with a second mounting hole (19), the surface of the guide plate (8) is provided with a guide groove (12), a plurality of guide grooves (12) are provided, and the plurality of guide grooves (12) are evenly distributed on the surface of the guide plate (8).
2. The variable diameter hole assembly device for the photovoltaic support pipe pile foundation in frozen soil areas according to claim 1 is characterized in that: The outer earth-breaking drill bits (5) are provided with four groups, and the four groups of outer earth-breaking drill bits (5) are distributed in an equidistant annular pattern on the first spiral guide vane (4). A mechanical connection main part (1) is fixed to the upper end of the main rotating shaft (3), and the mechanical connection main part (1) is used to connect with a connecting mechanical device.
3. The variable diameter hole assembly device for the photovoltaic support pipe pile foundation in frozen soil areas according to claim 1 is characterized in that: The connecting frame (2) is located above the first spiral guide vane (4), and four groups of guide rods (17) are provided. The four groups of guide rods (17) are respectively located at four ends of the end surface of the connecting frame (2), and the end surface of the guide rods (17) is chamfered.
4. The variable diameter hole assembly device for the photovoltaic support pipe pile foundation in frozen soil areas according to claim 1 is characterized in that: The outer wall of the square steel (18) and the inner wall of the insertion cavity (16) are slidably connected, a threaded rod (13) is provided in the first mounting hole (15) and the second mounting hole (19), and nuts (14) are provided at both ends of the threaded rod (13).
5. The variable diameter hole assembly device for the photovoltaic support pipe pile foundation in frozen soil areas according to claim 1 is characterized in that: The guide holes (20) are provided in four groups, and the four groups of guide holes (20) are respectively located at four ends of the surface of the support plate (10), and the inner wall of the guide hole (20) and the outer wall of the guide rod (17) are slidably connected.
6. The variable diameter hole assembly device for the photovoltaic support pipe pile foundation in frozen soil areas according to claim 5 is characterized in that: The guide plates (8) are in the shape of square plates. Four groups of guide plates (8) are provided. The four groups of guide plates (8) are linearly distributed at equal distances below the transmission plate (9).