A mixing pile machine

Abstract

This invention discloses a mixing pile machine, belonging to the field of engineering machinery technology. The mixing pile machine uses a motor to drive a spherical shaft to rotate. The motor speed can be adjusted according to different actual conditions, thereby adjusting the speed of the mixing drill rod to adapt to mixing pile operations in rock caves with different geological conditions, improving the efficiency and quality of mixing pile construction. Compared to existing technologies that use a hydraulic structure to drive the mixing drill rod, this invention allows for adjustment of the mixing drill rod speed by adjusting the motor speed, avoiding the impact on construction efficiency or quality caused by the non-adjustable mixing drill rod speed. It can adapt to different geological conditions, improving the efficiency and quality of mixing pile construction.

Description

Technical Field

[0001] This invention relates to the field of engineering machinery technology, and more specifically, to a mixing pile machine. Background Technology

[0002] In existing technologies, when constructing precast pile foundations, the foundation is generally reinforced to a certain extent before pile driving. This allows for a reduction in pile depth, provided the bearing capacity meets standards, thus lowering construction costs. Reinforcing the foundation requires a mixing pile machine to drill holes and simultaneously spray cement mortar or grout to mix with the soil, thereby increasing the foundation's bearing capacity. However, existing mixing pile machines mostly use hydraulic power heads with non-adjustable drill rod rotation speeds and low construction torque, resulting in low construction quality and efficiency.

[0003] In conclusion, how to improve the construction efficiency and quality of mixing pile machines is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a mixing pile machine that uses a motor to drive a spherical shaft to rotate. The speed of the motor can be adjusted according to different actual conditions, thereby adjusting the speed of the mixing drill rod to adapt to mixing pile operations in rock caves with different geological conditions, thereby improving the efficiency and quality of mixing pile construction.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A mixing pile machine includes an electric power unit, a column, a mixing drill rod, and a winch pressurization and lifting mechanism;

[0007] The electric power assembly includes a rotary head, which is equipped with a motor and a spherical shaft driven by the motor to rotate. The lower end of the spherical shaft is connected to the stirring drill rod. The winch pressurizing and lifting mechanism is connected to the electric power assembly to drive the electric power assembly to move up and down along the height direction of the column.

[0008] Optionally, the rotary device includes a pressure ring that mates with the spherical shaft, the pressure ring being in clearance fit with the spherical shaft.

[0009] Optionally, the upper and lower ends of the pressure ring are provided with internal keys, and the spherical shaft is provided with a keyway that mates with the internal key, with the keyway and the internal key having a clearance fit.

[0010] Optionally, the output end of the motor is connected to a speed reducer, the speed reducer is mounted on the gearbox assembly, and the pressure ring is mounted on the gearbox assembly via an external key.

[0011] Optionally, the electric power assembly includes a connecting frame, a carriage, and a gripper, wherein the rotary device and the carriage are both mounted on the connecting frame, and the gripper is disposed on the carriage;

[0012] Both the connecting frame and the carriage are connected to the hoisting and pressurizing lifting mechanism, and the gripper is connected to the column.

[0013] Optionally, the winch pressurizing and lifting mechanism includes a main winch, a tensioning cylinder, a pulley frame, a pulley assembly, an upward lifting wire rope, and a downward pressing wire rope;

[0014] The main winch, the tensioning cylinder, and the pulley assembly are all fixedly mounted on the main body of the mixing pile machine. The pulley frame is slidably mounted on the column. One end of the lifting wire rope is wound around the main winch, and the other end passes through part of the pulley assembly and is connected to the tensioning cylinder. One end of the pressing wire rope is wound around the main winch, and the other end is wound sequentially around part of the pulley assembly and the electric power assembly, and is connected to the column.

[0015] Optionally, the hoisting and pressurizing lifting mechanism includes a pull rope, which is wound around the pulley frame and both ends are connected to the electric power assembly.

[0016] Optionally, it includes a main body, lifting outriggers disposed on the main body, a slewing mechanism, and a dismounting and traveling mechanism, wherein the main body is mounted on the dismounting and traveling mechanism via the slewing mechanism.

[0017] Optionally, the main body of the fuselage is provided with a counterweight.

[0018] Optionally, the fuselage body is provided with a mast mechanism and a bracing mechanism, one end of the bracing mechanism being connected to the column and the other end being connected to the fuselage body.

[0019] In the process of using the mixing pile machine provided by this invention, the electric power assembly is driven to rise and fall along the column by the winch pressurization and lifting mechanism. During the operation of the rotary device in the electric power assembly, the spherical shaft is driven to rotate by the motor. During the rotation of the spherical shaft, the mixing drill rod is driven to rotate. By controlling the speed of the motor, the speed of the spherical shaft can be controlled, thereby controlling the speed of the mixing drill rod.

[0020] Compared to existing technologies that use hydraulic structures to drive the mixing drill rod, this invention allows for adjustment of the mixing drill rod's rotation speed by adjusting the motor speed. This avoids the impact on construction efficiency or quality caused by the non-adjustable rotation speed of the mixing drill rod, adapts to different geological conditions, and improves the efficiency and quality of mixing pile construction. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the mixing pile machine provided by the present invention;

[0023] Figure 2 for Figure 1 Schematic diagram of the structure of the middle winch pressurization and lifting mechanism;

[0024] Figure 3 for Figure 1 Schematic diagram of the structure of the electric power unit;

[0025] Figure 4 for Figure 3 A schematic diagram of the intermediate rotary head.

[0026] Figure 1-4 middle:

[0027] 1 is an electric power unit, 1-1 is a rotary device, 1-11 is a motor, 1-12 is a reducer, 1-13 is a gearbox, 1-14 is a gear assembly, 1-15 is a slewing bearing, 1-16 is a spherical shaft, 1-17 is an internal key, 1-18 is an external key, 1-19 is a bearing, 1-110 is a pressure ring, 1-111 is a rotary joint, 1-2 is a connecting frame, 1-3 is a slide, and 1-4 is a gripper.

[0028] 2 is the column, 3 is the mixing drill rod, 4 is the retainer, 5 is the main body of the machine, 6 is the lifting outrigger, 7 is the slewing mechanism, 8 is the driver's cab, and 9 is the unloading and traveling mechanism;

[0029] 10 is the hoisting and pressurizing mechanism, 10-1 is the main hoist, 10-2 is the lifting wire rope, 10-3 is the tensioning cylinder, 10-4 is the pulley frame, 10-5 is the pull rope, 10-6 is the pressing wire rope, 10-7 is the transition pulley, and 10-8 is the pulley assembly;

[0030] 11 is the counterweight, 12 is the mast mechanism, and 13 is the diagonal bracing mechanism. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] The core of this invention is to provide a mixing pile machine, which drives a spherical shaft to rotate via a motor. The speed of the motor can be adjusted according to different actual conditions, thereby adjusting the speed of the mixing drill rod to adapt to mixing pile operations in rock caves with different geological conditions, thereby improving the efficiency and quality of mixing pile construction.

[0033] Please refer to Figures 1-4 .

[0034] This specific embodiment discloses a mixing pile machine, including an electric power assembly 1, a column 2, a mixing drill rod 3, and a winch pressurizing and lifting mechanism 10; the electric power assembly 1 includes a rotary device 1-1, the rotary device 1-1 is equipped with a motor 1-11 and a spherical shaft 1-16 driven to rotate by the motor 1-11, the lower end of the spherical shaft 1-16 is connected to the mixing drill rod 3, and the winch pressurizing and lifting mechanism 10 is connected to the electric power assembly 1 to drive the electric power assembly 1 to rise and fall along the height direction of the column 2.

[0035] In the process of using the mixing pile machine provided in this specific embodiment, the electric power assembly 1 is driven to rise and fall along the column 2 by the winch pressurization lifting mechanism 10. During the operation of the rotary device 1-1 in the electric power assembly 1, the spherical shaft 1-16 is driven to rotate by the motor 1-11. During the rotation of the spherical shaft 1-16, the mixing drill rod 3 is driven to rotate. By controlling the speed of the motor 1-11, the speed of the spherical shaft 1-16 can be controlled, thereby controlling the speed of the mixing drill rod 3.

[0036] Compared to the existing technology that uses a hydraulic structure to drive the mixing drill rod 3 to rotate, in this specific embodiment, the rotation speed of the mixing drill rod 3 can be adjusted by adjusting the speed of motors 1-11. This avoids the impact on construction efficiency or quality due to the non-adjustable rotation speed of the mixing drill rod 3, and can adapt to different geological conditions, thereby improving the efficiency and quality of the mixing pile machine construction.

[0037] like Figure 1As shown, the mixing pile machine includes an electric power unit 1, a column 2, a mixing drill rod 3, a retainer 4, a main body 5, lifting outriggers 6, a slewing mechanism 7, a driver's cab 8, a lowering and traveling mechanism 9, a winch pressurizing and lifting mechanism 10, a counterweight, a mast mechanism 12, and a bracing mechanism 13. During installation, the mixing drill rod 3 passes through the retainer 4 and is mounted on the electric power unit 1; the retainer 4 is mounted on the lower part of the column 2; the electric power unit 1 is mounted on the column 2 and can move up and down along the guide rail of the column 2; the column 2 is fixedly mounted on the main body 5; the lifting outriggers 6 are mounted on the main body 5, allowing the main body 5 to move up and down; the main body 5 is secured by the slewing mechanism 7. The lowering and traveling mechanism 9 is installed on the machine body 5. The lowering and traveling mechanism 9 drives the main body 5 to move. The lifting outriggers 6 cooperate with the slewing mechanism 7 to realize the 360° slewing and traveling function of the mixing pile machine. The winch pressurizing and lifting mechanism 10 is installed on the main body 5 and the column 2, which can realize the up and down movement of the electric power component 1 on the column 2 along the guide rail. The counterweight 11 is installed at the tail of the main body 5 to maintain the balance of the pile machine. The number and specific installation position of the counterweight 11 can be adjusted according to the actual situation. The mast mechanism 12 is installed on the main body 5 to realize the self-masting function of the pile machine. The diagonal bracing mechanism 13 is connected to the column 2 at one end and to the main body 5 at the other end, which plays the role of stabilizing the column 2.

[0038] like Figure 2 As shown, the winch pressurization and lifting mechanism 10 includes a main winch 10-1, an upward lifting wire rope 10-2, a tensioning cylinder 10-3, a pulley frame 10-4, a pull rope 10-5, a downward pressing wire rope 10-6, a transition pulley 10-7, and a pulley assembly 10-8. The pulley assembly 10-8, including the transition pulley 10-7, is fixedly mounted on the main body 5 of the mixing pile machine. The pulley frame 10-4 is slidably mounted on the column 2. One end of the upward lifting wire rope 10-2 is wound around the main winch 10-1, and the other end passes through part of the pulley assembly 10-8 and is connected to the tensioning cylinder 10-3. One end of the downward pressing wire rope 10-6 is wound around the main winch 10-1, and the other end is sequentially wound around part of the pulley assembly 10-8 and the electric power assembly 1, and connected to the column 2. Figure 2 As shown, during the process of the downward steel wire rope 10-6 passing through the pulley assembly 10-8, it first passes through a portion of the pulleys in the pulley assembly 10-8, and then passes through the transition pulley 10-7. The main function of the transition pulley 10-7 is to change the direction of the downward steel wire rope 10-6.

[0039] In actual use, when the main winch 10-1 rotates clockwise, the lifting wire rope 10-2 is released outwards, while the pressing wire rope 10-6 is retracted, which drives the electric power assembly 1 to move downwards and the pulley frame 10-4 to move upwards; when the main winch 10-1 rotates counterclockwise, the pressing wire rope 10-6 is released outwards, while the lifting wire rope 10-2 is retracted, which drives the pulley frame 10-4 to move downwards and the electric power assembly 1 to move upwards.

[0040] In this specific embodiment, a main winch 10-1 is used, and an upward lifting wire rope 10-2 and a downward pressing wire rope 10-6 are wound around the main winch 10-1 at the same time, so that the upward lifting and downward pressing functions of the electric power component 1 can be realized.

[0041] like Figure 3 As shown, the electric power assembly 1 includes a rotary device 1-1, a connecting piece, a slide 1-3, and a gripper 1-4. The rotary device 1-1 and the slide 1-3 are both mounted on the connecting frame 1-2, and the gripper 1-4 is located on the slide 1-3. The connecting frame 1-2 and the slide 1-3 are both connected to the winch pressurization and lifting mechanism 10, and the gripper 1-4 is connected to the column 2.

[0042] When the main winch 10-1 in the winch pressurization and lifting mechanism 10 is equipped with an upper pull wire rope and a lower pressurization wire rope 10-6, the connecting frame 1-2 is connected to the pull rope 10-5 of the winch pressurization and lifting mechanism 10, and the slide 1-3 is connected to the lower pressurization wire rope 10-6.

[0043] like Figure 4As shown, the rotary unit 1-1 includes a motor 1-11, a reducer 1-12, a gearbox 1-13, a gear assembly 1-14, a slewing bearing 1-15, a spherical shaft 1-16, an inner key 1-17, an outer key 1-18, a bearing 1-19, a pressure ring 1-110, and a rotary joint 1-111. Specifically, the motor 1-11 can be a variable frequency motor 1-11, or other types of motors 1-11 that meet the requirements, depending on the actual situation. Specifically, two motors 1-11 and two reducers 1-12 can be set to increase the torque. The reducer 1-12 can be a gear reducer 1-12. The motor 1-11 is connected to the reducer 1-12, and the reducer 1-12 is fixedly installed. In gearbox 1-13, the lower gear meshes with the gear of gear assembly 1-14, which is fixedly mounted on a slewing support. The slewing support is mounted on gearbox 1-13. A bearing 1-19 is installed between the upper end of gear assembly 1-14 and gearbox 1-13. A pressure ring 1-110 is fixedly mounted on the upper and lower ends of gear assembly 1-14 via several external keys 1-18. A spherical shaft 1-16 is installed between the two pressure rings 1-110, and there is a gap between the areas where the pressure rings 1-110 and the spherical shaft 1-16 meet. Multiple internal keys 1-17 are installed on the pressure rings 1-110, and the spherical shaft 1-16 is provided with a keyway that mates with the internal keys 1-17, with a clearance fit between the keyway and the internal keys 1-17. Figure 4 As shown, the rotary joint 1-111 is fixedly installed on the upper end of the spherical shaft 1-16, and the material conveying channels of the two are connected. The lower end of the spherical shaft 1-16 is connected to the stirring drill rod 3. The two are connected by an inner and outer hexagonal fit and a pin. The material conveying channel of the spherical shaft 1-16 is connected to the stirring drill rod 3.

[0044] The spherical shaft 1-16 and the pressure ring 1-110 are fitted with a spherical surface and have a certain gap. The inner key 1-17 and the spherical shaft 1-16 also have a certain gap, which allows the spherical shaft 1-16 to swing in six directions: up, down, front, back, left, and right. This is beneficial for the connection and installation of the spherical shaft 1-16 and the stirring drill rod 3.

[0045] The specific workflow of the mixing pile machine in this particular embodiment is as follows:

[0046] The electric power unit 1 is located at the top of the column 2, and the lower end of the mixing drill rod 3 is above the ground. The material conveying system is connected to the rotary joint 1-111 via a hose. First, the motor 1-11 is started, driving the spherical shaft 1-16 and the mixing drill rod 3 to rotate. Then, the main winch 10-1 is started, pulling down the electric power unit 1 to move it downwards, driving the mixing drill rod 3 to rotate and press down simultaneously. When the mixing drill rod 3 drills into the ground, the cement powder or slurry from the material conveying system is sprayed into the ground through the rotary joint 1-111, the spherical shaft 1-16, and the mixing drill rod 3. At this time, the mixing drill rod 3 drills downwards while spraying material and rotating to mix. When the predetermined depth is reached, the motor 1-11 and the main winch 10-1 switch to reverse rotation. At this time, the mixing drill rod 3 rotates in the opposite direction while moving upwards, and the material conveying system can also be activated to spray material to make the mixing drill rod 3 mix.

[0047] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. Any combination of all embodiments provided by this invention is within the scope of protection of this invention and will not be elaborated upon here.

[0048] The mixing pile machine provided by this invention has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. It should be noted that those skilled in the art can make several improvements and modifications to this invention without departing from the principles of this invention, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. A mixing pile machine, characterized in that, It includes an electric power unit (1), a column (2), a stirring drill rod (3), and a winch pressurization and lifting mechanism (10); The electric power assembly (1) includes a rotary device (1-1), which is equipped with a motor (1-11) and a spherical shaft (1-16) driven to rotate by the motor (1-11). The lower end of the spherical shaft (1-16) is connected to the stirring drill rod (3). The winch pressurizing lifting mechanism (10) is connected to the electric power assembly (1) to drive the electric power assembly (1) to rise and fall along the height direction of the column (2). The rotary device (1-1) includes a pressure ring (1-110) that mates with the spherical shaft (1-16), the pressure ring (1-110) and the spherical shaft (1-16) having a clearance fit; and the pressure ring (1-110) and the spherical shaft (1-16) having an arc surface fit. The pressure ring (1-110) is provided with an inner key (1-17) at both the upper and lower ends, and the spherical shaft (1-16) is provided with a keyway that mates with the inner key (1-17), and the keyway and the inner key (1-17) are in clearance fit. The output end of the motor (1-11) is connected to a reducer (1-12), the reducer (1-12) is mounted on the gearbox (1-13) assembly, and the pressure ring (1-110) is mounted on the gearbox (1-13) assembly via a key (1-18); The electric power assembly (1) includes a connecting frame (1-2), a slide (1-3), and a gripper (1-4). The rotary device (1-1) and the slide (1-3) are both mounted on the connecting frame (1-2), and the gripper (1-4) is disposed on the slide (1-3). The connecting frame (1-2) and the slide (1-3) are both connected to the hoisting and pressurizing lifting mechanism (10), and the gripper (1-4) is connected to the column (2).

2. The mixing pile machine according to claim 1, characterized in that, The hoisting pressurization and lifting mechanism (10) includes a main hoist (10-1), a tensioning cylinder (10-3), a pulley frame (10-4), a pulley assembly (10-8), an upward lifting wire rope (10-2), and a downward pressing wire rope (10-6). The main winch (10-1), the tensioning cylinder (10-3), and the pulley assembly (10-8) are all fixedly installed on the main body (5) of the mixing pile machine. The pulley frame (10-4) is slidably installed on the column (2). One end of the lifting wire rope (10-2) is wound around the main winch (10-1), and the other end passes through part of the pulley assembly (10-8) and is connected to the tensioning cylinder (10-3). One end of the pressing wire rope (10-6) is wound around the main winch (10-1), and the other end is wound sequentially around part of the pulley assembly (10-8) and the electric power assembly (1), and is connected to the column (2).

3. The mixing pile machine according to claim 2, characterized in that, The hoisting pressurization and lifting mechanism (10) includes a pull rope (10-5), which is wound around the pulley frame (10-4) and both ends are connected to the electric power assembly (1).

4. The mixing pile machine according to claim 1, characterized in that, It includes a main body (5), lifting outriggers (6) disposed on the main body (5), a slewing mechanism (7) and a dismounting and traveling mechanism (9), wherein the main body (5) is mounted on the dismounting and traveling mechanism (9) via the slewing mechanism (7).

5. The mixing pile machine according to claim 4, characterized in that, The fuselage body (5) is equipped with a counterweight (11).

6. The mixing pile machine according to claim 4, characterized in that, The fuselage body (5) is provided with a mast mechanism (12) and a bracing mechanism (13). One end of the bracing mechanism (13) is connected to the column (2), and the other end is connected to the fuselage body (5).

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