Double-shaft cement mixing pile

Abstract

The utility model provides a double-shaft cement mixing pile, which belongs to the technical field of architectural equipment, and comprises a fixed plate, the top end of the fixed plate is rotatably connected with a motor rotating shaft, the bottom end of the motor rotating shaft is fixedly connected with a connecting block, the connecting block is rotatably connected to the bottom of the fixed plate, the bottom end of the connecting block is provided with a connecting groove, and the connecting groove is fixedly connected with the motor rotating shaft. A connecting groove is formed in the bottom end of the connecting block, a connector is inserted into the connecting groove, a spiral drill rod is fixedly connected to the bottom end of the connector, moving cavities are symmetrically formed in the left side and the right side of the bottom end of the connecting block, moving plates are slidably connected to the interiors of the two moving cavities, and positioning pins are fixedly mounted on the outer sides of the two moving plates; and the connector is fixedly connected with the connecting block through a positioning pin. The utility model solves the problems of complex replacement process and low efficiency of the spiral drill rod in the double-shaft cement mixing pile, and realizes quick and convenient disassembly and assembly of the spiral drill rod through the driving assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building construction equipment, especially a double-shaft cement mixing pile. BACKGROUND

[0002] Cement mixing pile refers to an effective form of soft foundation treatment, which is a kind of main agent taking cement as solidifying agent, and uses a mixing pile machine to spray cement into soil and fully mixes it, so that a series of physical and chemical reactions occur between cement and soil, making soft soil harden and improving the strength of foundation. Cement mixing pile is divided into single-shaft, double-shaft and triaxial mixing pile according to the main construction method. Compared with single-shaft mixing pile, double-shaft mixing pile technology has the advantages of higher construction efficiency, better mixing uniformity and wider treatment range, and is commonly used for soft soil foundation treatment of highways, bridges, ports and industrial and civil buildings.

[0003] The existing double-shaft cement mixing pile spiral drill pipe is mostly fixedly connected with the rotating shaft of the motor, and cannot be replaced. Under different geological conditions, the specifications and structural requirements of the spiral drill pipe may differ greatly. For example, hard rock layers require high-strength drill pipes, while soft clay layers require lighter drill pipe designs. However, the fixed connection design makes it impossible to replace the drill pipe flexibly, limiting the application range of the equipment and reducing the construction efficiency.

[0004] Therefore, in order to solve the above problems, a structure design capable of quickly disassembling and replacing the spiral drill pipe should be developed to improve the applicability, maintenance convenience and safety of the double-shaft cement mixing pile, thereby optimizing the performance and economy of the construction equipment. SUMMARY

[0005] The purpose of this section is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In view of the above and / or problems existing in the prior art, the utility model is proposed.

[0007] To solve the above technical problems, the utility model provides technical scheme as follows: A double shaft cement mixing pile, including fixed plate, the top of fixed plate rotatory connection has motor rotating shaft, the bottom of motor rotating shaft fixedly connected with connecting block, and connecting block rotatory connection is in the bottom of fixed plate, the bottom of connecting block is equipped with connecting groove, connecting groove is inserted with connecting head, the bottom of connecting head fixedly connected with spiral drill rod, the left and right sides of connecting block bottom symmetry are equipped with moving cavity, and the inside of two moving cavities all are connected with moving plate, the outside of two moving plates is fixedly installed with positioning pin, the connecting head is fixedly connected with connecting block through positioning pin, and the top of two moving plates is connected with drive assembly.

[0008] As a preferred scheme of the double shaft cement mixing pile, the left and right ends of the connecting groove are symmetrically provided with first positioning holes, the left and right ends of the connecting head are symmetrically provided with second positioning holes, and the clamping ends of the two positioning pins respectively pass through the two second positioning holes and extend into the two first positioning holes.

[0009] As a preferred scheme of the double shaft cement mixing pile, the top end of the connecting head is provided with a cavity, and the bottom ends of the two moving plates are respectively arranged in the cavity.

[0010] As a preferred scheme of the double shaft cement mixing pile, the drive assembly comprises a servo motor fixedly installed on the outside of the connecting block, an output end of the servo motor is drivingly connected with a rotating rod through a shaft coupling, the other end of the rotating rod is fixedly connected with a first threaded rod, the other end of the first threaded rod is fixedly connected with a second threaded rod, the outer surfaces of the first threaded rod and the second threaded rod are both threadedly connected with moving blocks, and the thread rotation directions of the outer surfaces of the first threaded rod and the second threaded rod are opposite.

[0011] As a preferred scheme of the double shaft cement mixing pile, the top ends of the two moving cavities are both communicated with moving grooves, the first threaded rod and the second threaded rod are respectively rotatably connected in the two moving grooves, and the two moving blocks are respectively slidably connected in the two moving grooves.

[0012] As a preferred scheme of the double shaft cement mixing pile, the bottom ends of the two moving plates are both extended into the moving grooves and respectively fixedly connected with the bottom surfaces of the two moving blocks.

[0013] The utility model has the advantages of:

[0014] 1. The double-shaft cement mixing pile design of the present application can quickly disassemble and replace the auger rod, solving the problem of fixed connection between the auger rod and the motor shaft in the prior art, which cannot be replaced. Through the optimized connection structure and driving assembly, the user can flexibly replace the drill rod according to different geological conditions, adapt to various construction requirements such as hard rock stratum and soft clay layer, and significantly improve the applicability and construction efficiency of the equipment.

[0015] 2. The device simplifies the disassembly and installation process of the auger rod through the innovative design of the adjustable moving plate and the positioning pin, enabling the staff to quickly replace the drill rod, reducing the complexity of manual operation and the downtime of the construction site. In addition, replacing the auger rod independently also reduces maintenance costs and avoids the cumbersome operation of disassembling the motor shaft in traditional equipment, thereby improving the maintenance efficiency of the equipment.

[0016] 3. The present application not only improves the safety of the equipment and avoids the risk of overload caused by fixed connection, but also prolongs the service life of the equipment. By replacing auger rods of different specifications, the equipment wear and tear can be reduced, and its service life can be extended. At the same time, the quick replacement function greatly improves the efficiency of the construction site, ensures the smooth progress of the project schedule, and has significant economic benefits and practical application value. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating any creative labor. Among them:

[0018] Fig. 1 is a structural diagram of the connection state of the motor shaft and the auger rod of the present application;

[0019] Fig. 2 is an enlarged view of the structure of the connection block and the connecting head in the connected state of the present application;

[0020] Fig. 3 is an enlarged view of the structure of the connection block and the connecting head in the separated state of the present application;

[0021] Fig. 4 is a bottom sectional view of the connection between the positioning pin and the connection block and the connecting head of the present application. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.

[0023] In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can be practiced in other ways different from those described herein without departing from the scope of the present application, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore, the present application is not limited to the specific embodiments disclosed below.

[0024] Secondly, the present application is described in detail in combination with the schematic diagram, in the detailed description of the embodiments of the present application, for the convenience of description, the cross-sectional view of the device structure will be partially enlarged without the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present application here. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual production.

[0025] Thirdly, the "one embodiment" or "embodiment" referred to herein can include specific features, structures or characteristics in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an independent or alternative embodiment excluding other embodiments.

[0026] Embodiment

[0027] Reference Figs. 1-4 The embodiment provides a double-shaft cement mixing pile, which mainly comprises a fixed plate 1, a motor rotating shaft 2, a connecting block 3, a connecting head 4, a spiral drill rod 5, a moving cavity 302, a moving plate 6, a positioning pin 7 and a driving assembly 8.

[0028] The fixed plate 1 serves as the basic support structure of the whole device, and provides a stable platform to ensure the stability and cooperative operation of each component during work. The motor rotating shaft 2 is connected with the fixed plate 1, and power is provided through a motor, so that the spiral drill rod 5 can rotate. The bottom end of the motor rotating shaft 2 is fixedly connected with the connecting block 3, the connecting block 3 plays a role of power transmission, can transmit the rotary motion of the motor rotating shaft 2 to the connecting head 4, and then drive the spiral drill rod 5 to perform actual mixing operation.

[0029] The bottom end of the connecting block 3 is provided with a connecting groove 301, and the connecting head 4 is inserted in the connecting groove 301. The main function of the connecting head 4 is to fixedly connect the spiral drill rod 5 with the connecting block 3, and at the same time provide rotary power for the spiral drill rod. The bottom end of the connecting head 4 is fixedly connected with the spiral drill rod 5, and the spiral drill rod 5 is responsible for the injection and mixing of cement in actual operation. The connecting head 4 is fixedly connected between the connecting block 3 and the positioning pin 7, so as to ensure that the connecting head 4 will not be loose during work, thereby guaranteeing the stability and safety of the whole mixing device.

[0030] In order to facilitate the installation and removal of the connecting head 4, the left and right sides of the bottom end of the connecting block 3 are symmetrically provided with moving cavities 302. Each moving cavity 302 is slidably connected with a moving plate 6, which is responsible for supporting and pushing the movement of the connecting head 4, and when needed, drives the movement of the positioning pin 7 through the driving assembly 8, thereby achieving the disassembly and assembly of the connecting head 4. The outer side of the moving plate 6 is fixedly provided with the positioning pin 7, which passes through the first positioning hole 303 and the second positioning hole 401 between the connecting head 4 and the connecting block 3 through the clamping end, thereby fixing the connecting head 4 on the connecting block 3.

[0031] The driving assembly 8 mainly includes a servo motor 801 fixedly installed on the outer side of the connecting block 3. The output end of the servo motor 801 is connected with a rotating rod 802 through a shaft coupling, and the rotating rod 802 is connected with a first threaded rod 803 and a second threaded rod 804 through threads. The threads on the outer surfaces of the first threaded rod 803 and the second threaded rod 804 are in opposite directions, so when the servo motor 801 is started, they will respectively drive the moving block 805 to slide in the moving groove 304, thereby pushing the two moving plates 6 to slide in the horizontal direction, completing the disassembly and assembly of the connecting head 4.

[0032] The top ends of the two moving cavities 302 are communicated with the moving groove 304, and the moving block 805 is slidably connected in the moving groove 304. When the driving assembly 8 is started, the servo motor 801 drives the first threaded rod 803 and the second threaded rod 804 to rotate through the rotating rod 802, thereby driving the moving block 805 to move towards or away from each other, thereby driving the moving plate 6 to slide, completing the unlocking or locking of the positioning pin 7. This process enables the connecting head 4 to be separated from or reconnected to the connecting block 3, achieving the purpose of quickly replacing the auger rod.

[0033] During the connection process of the connecting head 4 and the connecting block 3, the two positioning pins 7 pass through the two second positioning holes 401 through the clamping end and extend into the two first positioning holes 303, thereby ensuring the fixed connection between the connecting head 4 and the connecting block 3. When it is necessary to replace the auger rod, the driving assembly 8 will release the positioning pin 7 through the moving plate 6, so that the connecting head 4 is disconnected from the connecting block 3, and the worker can easily remove the old auger rod and install a new one. This structure not only facilitates the replacement process, but also avoids the complexity of manual disassembly through simple mechanical movement, thereby improving the work efficiency.

[0034] Overall, through the cooperation of the servo motor 801, the rotating rod 802 and the threaded rod system, the double-shaft cement mixing pile can accurately and quickly disassemble and assemble the auger rod during operation. Through this design, not only the complexity of manual operation is reduced, but also the work efficiency and reliability of the equipment are improved, and the difficulty of maintenance and operation is reduced.

[0035] The working principle is: when the auger rod 5 needs to be replaced, the servo motor 801 is started, the servo motor 801 can drive the first threaded rod 803 and the second threaded rod 804 to rotate in the same direction through the rotating rod 802, and because the screw rotation directions of the first threaded rod 803 and the second threaded rod 804 are opposite, the two moving blocks 805 threaded on the first threaded rod 803 and the second threaded rod 804 can move horizontally towards each other, and the two moving blocks 805 can drive the two moving plates 6 at the bottom to move horizontally towards each other, when the two moving plates 6 move to the innermost end of the moving cavity 302, the positioning pins 7 outside the two moving plates 6 can be pulled out from the inside of the first positioning hole 304 and the second positioning hole 401, so that the limiting and fixing of the connecting head 4 is released, at this time, the worker can take off the connecting head 4 and the auger rod 5 from the connecting block 3, realizing the separation of the auger rod 5 and the motor shaft 2; similarly, when installing a new auger rod 5, the worker first inserts the connecting head 4 at the top of the auger rod 5 into the connecting groove 301 of the connecting block 3, then starts the servo motor 801 again, the servo motor 801 can drive the first threaded rod 803 and the second threaded rod 804 to rotate in opposite directions through the rotating rod 802, thereby driving the two moving blocks 805 to move horizontally away from each other, the two moving blocks 805 can drive the two positioning pins 7 to move horizontally away from each other through the two moving plates 6, and the two positioning pins 7 can pass through the two second positioning holes 401 respectively and insert into the two first positioning holes 303 respectively, thereby completing the limiting and fixing of the connecting head 4 and the connecting block 3, and completing the installation of the new auger rod 5.

[0036] It is important to note that the construction and arrangements of the application shown in the various exemplary embodiments are illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications can be made to the embodiments without departing from the novel teachings and advantages of the subject matter described herein. For example, elements described as integrated in a single unit can be separated, elements described as separate can be integrated, and the position, number, shape, and arrangements of elements can be varied. Accordingly, all such modifications are intended to be included within the scope of the present inventive subject matter. The order or sequence of any process or method steps can be varied or re-sequenced without departing from the general nature of the claims. Any "means plus function" clauses are intended to cover the structures described herein as performing the recited functionality and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present inventive subject matter. Accordingly, the present inventive subject matter is not limited to the particular embodiments described and illustrated herein, but extends to equivalents of which the foregoing describes are intended to cover.

[0037] Furthermore, in order to provide a concise description of the exemplary embodiments, not all features of an actual implementation can be described (i.e., those related to the

[0038] It is understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts can inevitably lead to a number of substitutions, modifications, changes, and omissions of parts illustrated as having a specific configuration. Such are the natural consequences of research and development efforts, and

[0039] It should be noted that the above examples are intended to illustrate the technical solutions of the present application but not limit the present application, and although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the present application, and all should be included in the scope of the claims of the present application.

Claims

1. A dual shaft cement mixing pile, characterized in that: The utility model relates to a spiral drilling device, including fixed plate (1), the top end of fixed plate (1) is rotatably connected with motor rotating shaft (2), the bottom of motor rotating shaft (2) is fixedly connected with connecting block (3), and connecting block (3) is rotatably connected in the bottom of fixed plate (1), the bottom of connecting block (3) is equipped with connecting groove (301), connecting head (4) is inserted in connecting groove (301), the bottom of connecting head (4) is fixedly connected with spiral drill rod (5), the left and right sides of the bottom of connecting block (3) are symmetrically equipped with moving cavity (302), and the inside of two moving cavities (302) are slidably connected with moving plate (6), the outside of two moving plates (6) is fixedly installed with positioning pin (7), connecting head (4) is fixedly connected with connecting block (3) through positioning pin (7), and the top of two moving plates (6) is transmissionally connected with drive assembly (8).

2. The dual shaft cement mixing pile according to claim 1, characterized in that: The left and right ends of the connecting groove (301) are symmetrically provided with first positioning holes (303), and the left and right ends of the connecting head (4) are symmetrically provided with second positioning holes (401). The clamping ends of the two positioning pins (7) respectively pass through the two second positioning holes (401) and extend into the two first positioning holes (303).

3. The dual shaft cement mixing pile according to claim 2, characterized in that: The top of the connecting head (4) is provided with a cavity (402), and the bottoms of the two moving plates (6) are respectively arranged in the cavity (402).

4. The dual shaft cement mixing pile according to claim 3, characterized in that: The drive assembly (8) comprises a servo motor (801) fixedly installed on the outer side of the connecting block (3). The output end of the servo motor (801) is transmissionally connected with a rotating rod (802) through a shaft coupling. The other end of the rotating rod (802) is fixedly connected with a first threaded rod (803). The other end of the first threaded rod (803) is fixedly connected with a second threaded rod (804). The outer surfaces of the first threaded rod (803) and the second threaded rod (804) are threadedly connected with moving blocks (805). The thread rotation directions of the outer surfaces of the first threaded rod (803) and the second threaded rod (804) are opposite.

5. The dual shaft cement mixing pile according to claim 4, characterized in that: The tops of the two moving cavities (302) are respectively connected with moving grooves (304). The first threaded rod (803) and the second threaded rod (804) are respectively rotatably connected in the two moving grooves (304). The two moving blocks (805) are respectively slidably connected in the two moving grooves (304).

6. The dual shaft cement mixing pile according to claim 5, characterized in that: The bottoms of the two moving plates (6) extend into the moving grooves (304) and are respectively fixedly connected with the bottoms of the two moving blocks (805).

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