Multi-shaft mixing pile machine
Through the design of the multi-axis mixing pile machine, the spray hole tilt setting and the hollow mixing rod are combined, the problem of uneven mixing of cement slurry is solved, and the uniform mixing of cement soil and the improvement of pile body density is achieved.
Patent Information
- Application Number
- CN202422366649.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-26
AI Technical Summary
When existing pile mixers spray cement slurry, cement slurry is prone to accumulate near the spray nozzle, resulting in uneven mixing of cement and soil, affecting the compactness and uniformity of the pile body, and reducing the quality of pile formation.
A multi-axis mixing pile machine is adopted, including a power head, a rotating pipe, agitating rod and a spray head. The spray hole is tilted and distributed radially. The spray head and the drill bit are connected by a flange. The rotating pipe drives the mixing rod to rotate. The hollow stirring rod sprays cement slurry to ensure that the cement slurry is uniformly sprayed into the inside of the drill hole.
The full mixing of cement slurry and soil is achieved, the compactness and uniformity of the pile body are improved, and the pile quality is improved.
Smart Images
Figure CN223176717U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building construction, in particular to a multi-axis mixing pile machine. Background Technique
[0002] Mixing piles are widely used in the fields of foundation pit support and ground reinforcement, and have the advantages of high construction efficiency, wide applicable soil layer range, good pile body uniformity, and high pile body strength. Generally, a mixing pile is connected with two, three or multiple drill pipes through a power head to provide rotational power for the drill pipes. During construction, the drill pipes are drilled to the bottom of the hole, and then cement slurry is sprayed while stirring to mix the soil and the cement slurry. By using the physical and chemical effects between the soil and the cement hydrate, a cement soil consolidation body with a certain strength is formed.
[0003] At present, when most mixing piles spray cement slurry, the cement slurry is easily accumulated near the spray nozzle, and the cement and soil cannot be fully mixed, resulting in uneven mixing. Therefore, after mixing, the cement soil of the pile body is not dense and uniform, seriously reducing the pile forming quality. Content of the Utility Model
[0004] The purpose of the utility model is to solve the problems in the prior art, and a multi-axis mixing pile machine which is convenient for fully mixing the soil and the cement slurry is proposed.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A multi-axis mixing pile machine, comprising:
[0007] A power head;
[0008] Multiple rotating pipes, each rotating pipe is arranged at intervals at the bottom end of the power head. A plurality of stirring rods are arranged at intervals along the vertical direction on the outer part of each rotating pipe, and the stirring rods on adjacent two rotating pipes are staggered in the vertical direction. A spray head is arranged at the lower end of each rotating pipe. The top and bottom of the spray head are both conical, and a plurality of spray holes are arranged at intervals around the conical outer wall of the spray head. A drill bit is arranged at the lower end of each spray head.
[0009] Further, the spray holes are radially arranged with the axis of the spray head as the center, and the spray holes at the top of each spray head are inclined upwards and the spray holes at the bottom of each spray head are inclined downwards.
[0010] Further, the spray head and the drill bit are connected by a flange.
[0011] Further, the rotating pipes include two first rotating pipes and a second rotating pipe. The two first rotating pipes are respectively arranged on both sides of the bottom end of the power head, and the second rotating pipe is arranged in the middle of the bottom end of the power head.
[0012] Further, the drill bits below the second rotating pipe and the drill bits below the two first rotating pipes are staggered in the vertical direction.
[0013] Further, an active gear and a transmission gear are rotatably connected inside the power head. The active gear and the transmission gear are meshed. Driven gears are respectively arranged at the upper ends of the two first rotating pipes. The two driven gears are respectively meshed with the active gear and the transmission gear. Pulley wheels are arranged outside both the first rotating pipe and the second rotating pipe. A transmission belt is arranged outside the two pulley wheels.
[0014] Further, a rotating shaft is rotatably connected inside the power head. The active gear is fixedly connected to the rotating shaft. A driving motor is arranged inside the power head. Driving gears are arranged on both the output shaft of the driving motor and the rotating shaft. The two driving gears are meshed.
[0015] Further, it further includes a plurality of fixing sleeves and two fixing plates. Each fixing sleeve is sleeved outside a rotating pipe. The two fixing plates are respectively arranged on both sides of each fixing sleeve, and the two fixing plates are fixedly connected by bolts to clamp and fix each fixing sleeve.
[0016] Further, each rotating pipe is rotatably connected to the fixing sleeve.
[0017] Further, each stirring rod is hollow, and the stirring rod is communicated with the rotating pipe.
[0018] The beneficial effects of the present utility model are as follows:
[0019] In the present utility model, the multi-axis mixing pile machine rotates through the two first rotating pipes and the first rotating pipe, so that the drill bits rotate to drill holes. The cement slurry is injected through the rotating pipes and ejected through each spray hole. Since each spray hole is radially arranged with respect to the axis of the nozzle head, and the orientations of each spray hole are respectively inclined upward or downward, the cement slurry is sprayed around, facilitating the mixing of the soil and the cement slurry. During the pouring of the cement slurry, each rotating pipe drives the stirring rod to rotate, so as to fully mix the soil and the cement slurry;
[0020] During the pouring of the cement slurry, the hollow stirring rod can also spray the cement slurry, so that the cement slurry is sprayed to the hole wall of the drill hole and cooperates with the nozzle head at the center position of the drill hole, so that the cement slurry is evenly sprayed into the drill hole, further improving the mixing effect of the soil and the cement slurry. Description of the Drawings
[0021] Figure 1 is a schematic cross-sectional structure view of a multi-axis mixing pile machine proposed by the present utility model;
[0022] Figure 2 is a schematic three-dimensional structure view of the rotating pipe, fixing sleeve, fixing plate, stirring rod and nozzle head of a multi-axis mixing pile machine proposed by the present utility model.
[0023] In the figure: 1 power head, 2 first rotating pipe, 3 second rotating pipe, 4 fixed sleeve, 5 fixed plate, 6 bolt, 7 stirring rod, 8 spray head, 801 spray hole, 9 drill bit, 10 motor, 11 driven gear, 12 driving gear, 13 rotating shaft, 14 transmission gear, 15 transmission belt. Detailed implementation manners
[0024] The technical solution of this patent will be further described in detail below in combination with the specific implementation manners.
[0025] The embodiments of this patent will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain this patent and should not be construed as a limitation to this patent.
[0026] In the description of this patent, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this patent.
[0027] In the description of this patent, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection", "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.
[0028] Refer to Figure 1-2 , a multi-axis mixing pile machine, which is applied to the construction of mixing piles. In order to facilitate the full mixing of cement and soil, make the pile body dense and uniform, and improve the quality of the formed pile.
[0029] This multi-axis mixing pile machine includes a power head 1 and multiple rotating pipes:
[0030] The rotating pipes are arranged at intervals at the bottom end of the power head 1. The rotating pipes include two first rotating pipes 2 and a second rotating pipe 3. The two first rotating pipes 2 are respectively arranged on both sides of the bottom end of the power head 1, and the second rotating pipe 3 is arranged in the middle of the bottom end of the power head 1. By constructing simultaneously with the two first rotating pipes 2 and the second rotating pipe 3, the construction efficiency can be effectively improved.
[0031] Inside the power head 1, a rotating shaft 13 is rotatably connected. The driving gear 12 is fixedly connected to the rotating shaft 13. Inside the power head 1, a driving motor 10 is provided. Driving gears are provided on both the output shaft of the driving motor 10 and the rotating shaft 13. The two driving gears are meshed. The driving motor 10 can drive the driving gear 12 to rotate. Inside the power head 1, the driving gear 12 and the transmission gear 14 are rotatably connected. Since the driving gear 12 and the transmission gear 14 are meshed, the driving gear 12 can drive the transmission gear 14 to rotate. At the upper ends of the two first rotating pipes 2, driven gears 11 are respectively provided. Since the two driven gears 11 are respectively meshed with the driving gear 12 and the transmission gear 14, the driving gear 12 and the transmission gear 14 can respectively drive the two first rotating pipes 2 to perform reverse movements, thereby canceling the reaction forces generated by the rotation of the two first rotating pipes 2. On the outer parts of one of the first rotating pipes 2 and the second rotating pipe 3, belt pulleys are provided. A transmission belt 15 is provided outside the two belt pulleys. Through the transmission belt 15, one of the first rotating pipes 2 can drive the second rotating pipe 3 to rotate synchronously.
[0032] At the lower end of each rotating pipe, a spray head 8 is provided. The top and bottom of the spray head 8 are both conical. And on the conical outer wall of the spray head 8, a plurality of spray holes 801 are spaced around. And each spray hole 801 at the top of each spray head 8 is inclined upward, and each spray hole 801 at the bottom is inclined downward. When performing cement slurry perfusion, the cement slurry is injected through the rotating pipe and sprayed out through the respective spray holes 801. Since the respective spray holes 801 are radially arranged with the axis of the spray head 8 as the center, and the orientations of the respective spray holes 801 are respectively inclined upward or downward, the cement slurry is sprayed around, facilitating the mixing of the soil and the cement slurry.
[0033] On the outer part of each rotating pipe, a plurality of stirring rods 7 are provided at intervals in the vertical direction. Each stirring rod can rotate along with the rotating pipe, thereby mixing the soil and the cement slurry. And the stirring rods 7 on the adjacent two rotating pipes are staggered in the vertical direction, ensuring that the stirring rods can stir and mix all spaces in the drilling hole, thereby further improving the stirring effect. Each stirring rod 7 is hollow, and the stirring rod 7 is communicated with the rotating pipe. The hollow stirring rod 7 can also spray the cement slurry, so that the cement slurry is sprayed to the hole wall of the drilling hole, cooperating with the spray head 8 at the center position of the drilling hole, so that the cement slurry is evenly sprayed into the drilling hole, facilitating the mixing of the soil and the cement slurry.
[0034] The lower ends of the respective spray heads 8 are connected with drill bits 9 through flanges. Since the drill bits 9 are easily damaged after long-term use, the drill bits 9 connected through flanges are convenient for disassembly and replacement. The drill bits 9 below the second rotating pipe 3 and the drill bits 9 below the two first rotating pipes 2 are staggered in the vertical direction, so that during construction, the respective drill bits 9 do not affect each other.
[0035] To improve the stability of the rotation of the rotating pipes, the multi-axis mixing pile machine further includes a plurality of fixing sleeves 4 and two fixing plates 5. Each fixing sleeve 4 is sleeved outside a rotating pipe. The two fixing plates 5 are respectively arranged on both sides of each fixing sleeve 4, and the two fixing plates 5 are fixedly connected by bolts 6 to clamp and fix each fixing sleeve 4. Each rotating pipe can rotate within the fixing sleeve 4. The fixing plates 5 are used to connect and fix each rotating pipe, thereby improving the stability of each rotating pipe during rotation.
[0036] The working principle of the multi-axis mixing pile machine: During use, the drive motor 10 inside the power head 1 drives the drive gear to rotate, thereby driving the rotating shaft 13 to rotate. The rotating shaft 13 drives the driving gear 12 to rotate, and the driving gear 12 drives the transmission gear 14 to rotate. The driving gear 12 and the transmission gear 14 respectively drive the two first rotating pipes 2 to move in opposite directions. At the same time, one of the first rotating pipes 2 drives the second rotating pipe 3 to rotate synchronously through the transmission belt 15, so that the two first rotating pipes 2 and the second rotating pipe 3 rotate, causing the drill bit 9 at the bottom to rotate, thereby drilling holes.
[0037] After the drilling is completed, cement slurry is poured through each rotating pipe. The cement slurry is injected through the rotating pipe and ejected through each spray hole 801. Since each spray hole 801 is radially arranged around the axis of the spray head 8, and the orientations of each spray hole 801 are respectively inclined upward or downward, the cement slurry is sprayed in all directions, facilitating the mixing of the soil and the cement slurry. At the same time, the hollow mixing rod 7 can also spray cement slurry, so that the cement slurry is sprayed onto the hole wall of the drill hole and cooperates with the spray head 8 at the center of the drill hole, so that the cement slurry is evenly sprayed into the drill hole, facilitating the mixing of the soil and the cement slurry.
[0038] During the pouring of the cement slurry, each rotating pipe drives the mixing rod 7 to rotate, thereby mixing the soil and the cement slurry.
[0039] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.
Claims
1. A multi-axis mixing pile machine, characterized in that, Including: A power head (1); A plurality of rotating pipes, each of the rotating pipes is arranged at intervals at the bottom end of the power head (1). A plurality of stirring rods (7) are arranged at intervals along the vertical direction on the outer part of each rotating pipe, and the stirring rods (7) on adjacent two rotating pipes are staggered in the vertical direction. A spray head (8) is arranged at the lower end of each rotating pipe. The top and bottom of the spray head (8) are both conical, and a plurality of spray holes (801) are arranged at intervals and circumferentially around the conical outer wall of the spray head (8). A drill bit (9) is arranged at the lower end of each spray head (8).
2. The multi-axis mixing pile machine according to claim 1, wherein: Each of the spray holes (801) is radially arranged with respect to the axis of the spray head (8), and each of the spray holes (801) at the top of each spray head (8) is inclined upward, and each of the spray holes (801) at the bottom of each spray head (8) is inclined downward.
3. The multi-axis mixing pile machine according to claim 1, characterized in that: The spray head (8) is connected to the drill bit (9) through a flange.
4. A multi-axis mixing pile machine according to claim 1, characterized in that: The rotating pipes include two first rotating pipes (2) and a second rotating pipe (3). The two first rotating pipes (2) are respectively arranged on both sides of the bottom end of the power head (1), and the second rotating pipe (3) is arranged in the middle of the bottom end of the power head (1).
5. The multi-axis mixing pile machine according to claim 4, characterized in that: The drill bit (9) below the second rotating pipe (3) and the drill bits (9) below the two first rotating pipes (2) are staggered in the vertical direction.
6. A multi-axis mixing pile machine according to claim 4, characterized in that: An active gear (12) and a transmission gear (14) are rotatably connected inside the power head (1). The active gear (12) and the transmission gear (14) are meshed. Driven gears (11) are respectively arranged at the upper ends of the two first rotating pipes (2). The two driven gears (11) are respectively meshed with the active gear (12) and the transmission gear (14). A pulley is arranged outside each of one of the first rotating pipes (2) and the second rotating pipe (3), and a transmission belt (15) is arranged outside the two pulleys.
7. A multi-axis mixing pile machine according to claim 6, characterized in that: A rotating shaft (13) is rotatably connected inside the power head (1). The active gear (12) is fixedly connected to the rotating shaft (13). A driving motor (10) is arranged inside the power head (1). Driving gears are arranged on the output shaft of the driving motor (10) and the rotating shaft (13), and the two driving gears are meshed.
8. A multi-axis mixing pile machine according to claim 1, characterized in that: It further includes a plurality of fixing sleeves (4) and two fixing plates (5). Each fixing sleeve (4) is sleeved outside one rotating pipe. The two fixing plates (5) are respectively arranged on both sides of each fixing sleeve (4), and the two fixing plates (5) are fixedly connected through bolts (6) to clamp and fix each fixing sleeve (4).
9. The multi-shaft mixing pile machine according to claim 8, characterized in that: Each rotating pipe is rotatably connected to the fixing sleeve (4).
10. A multi-axis mixing pile machine according to claim 1, characterized in that: Each stirring rod (7) is hollow, and the stirring rod (7) is communicated with the rotating pipe.