A square milling head for T-shaped pile processing

Abstract

The utility model provides a kind of square milling head for T-shaped pile processing, it is related to milling excavator field, mainly applied to the construction scene of square pile with flange process. The square milling head includes: connecting structure, it includes mounting seat and connecting portion, above-mentioned mounting seat is located at the top of above-mentioned connecting portion, for connecting with operation car;Two milling heads, symmetrically set in the ring side of above-mentioned connecting portion;Wherein, each above-mentioned milling head includes square connecting column and multiple milling teeth, above-mentioned square connecting column is transversely arranged in the ring side of above-mentioned connecting portion, and can be rotatably mounted in above-mentioned connecting portion around its axis, and each side of above-mentioned square connecting column is provided with multiple above-mentioned milling teeth along its axial direction;And hydraulic drive structure, including two hydraulic motors, two above-mentioned hydraulic motors are respectively connected with two above-mentioned square connecting column transmission. The application can complete two wing plate milling simultaneously, greatly reduce operation step and time, significantly improve processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of milling machine technology, and more specifically, to a square milling head for processing T-shaped piles. Background Technology

[0002] A milling machine is a specialized engineering device powered by hydraulics or electricity and equipped with interchangeable milling heads (such as longitudinal and transverse milling heads). Its core function is to cut, crush, and shape various strata, including rock, concrete, and soft soil, using alloy cutting teeth on the milling head. Compared to traditional blasting or impact crushing equipment, it has the core advantages of being vibration-free, low-noise, and having high shaping accuracy. Furthermore, it can flexibly adjust the type of milling head and cutting parameters according to construction needs. Therefore, it is widely used in tunnel excavation, foundation pit support, and pile processing, and is particularly suitable for projects with sensitive surrounding environments or requiring precise shaping. This also provides key technical support for the processing of special piles such as T-shaped piles.

[0003] Based on the aforementioned characteristics of milling machines, they can achieve precise in-situ shaping of the strata in T-shaped pile processing. Specifically, this refers to the process of using the phased cutting capability of the milling machine to mill the cross-section of the T-shaped pile, consisting of a vertical pile body and two horizontal flanges, from the strata. The entire process must closely match the structural characteristics of the T-shaped pile: first, the longitudinal milling head mills downwards along the design axis, simultaneously using laser guidance and inclination monitoring to ensure the verticality of the pile body, until a vertical pile body groove meeting the depth requirements is formed; after the pile body processing meets the standards, the transverse milling head is installed to extend the milling to both sides at the designated elevation of the pile body, thereby forming the horizontal flange structure. The efficiency of the flange processing stage is also a key aspect that needs to be focused on in this process.

[0004] Specifically, in the processing of the two flanges of T-shaped piles, the limitations of the milling machine's equipment characteristics—the transverse milling head can only cover the cutting range of one side at a time, and the width, levelness, and connection accuracy of the flange with the pile body must be ensured—mean that the processing of both flanges must be completed one by one using the transverse milling head. This process objectively leads to relatively low processing efficiency. This limitation is clearly reflected in existing technologies. For example, in the technical solution of patent number CN202120826243.6, entitled "A Milling Machine," the efficiency problem caused by the need to mill both flanges one by one also exists when processing the flanges of T-shaped piles, further confirming the universality of the efficiency bottleneck in this processing mode. Utility Model Content

[0005] The purpose of this utility model is to provide a square milling head for processing T-shaped piles, which aims to solve the technical problems in the background art mentioned above.

[0006] The embodiments of this utility model are implemented as follows: This application provides a square milling head for machining T-shaped piles, comprising: a connecting structure including a mounting base and a connecting portion, the mounting base being disposed on the top of the connecting portion for connection with a work vehicle; two milling heads symmetrically disposed on the annular side of the connecting portion and arranged centrally symmetrically about the center of the connecting portion; wherein each milling head includes a square connecting post and a plurality of milling teeth, the square connecting post being laterally disposed on the annular side of the connecting portion and rotatably mounted on the connecting portion about its own axis, each side of the square connecting post having a plurality of milling teeth arranged along its axial direction; and a hydraulic drive structure including two hydraulic motors, the two hydraulic motors being respectively connected to the two square connecting posts for transmission.

[0007] Furthermore, based on the aforementioned solution, a mounting groove is provided on the side of the connecting part facing the mounting base to accommodate two of the aforementioned hydraulic motors; The mounting base is provided with a wiring through hole, which is connected to the mounting groove.

[0008] Furthermore, based on the aforementioned scheme, each of the aforementioned hydraulic motors is driven by a gear set to the corresponding aforementioned square connecting column; The two hydraulic motors mentioned above are at the same horizontal level.

[0009] Furthermore, based on the aforementioned solution, the connecting part is provided with two mounting posts, which are respectively located above the two square connecting posts; Each of the aforementioned mounting posts is provided with a first limiting structure on its front and rear sides for limiting the front and rear of the mounting post.

[0010] Furthermore, based on the aforementioned scheme, two second limiting structures are symmetrically arranged on the front side of the connecting part for limiting the left and right directions of the connecting part.

[0011] Furthermore, based on the aforementioned scheme, both the first limiting structure and the second limiting structure are shock absorbers.

[0012] Furthermore, based on the aforementioned scheme, the first limiting structure and the mounting post, as well as the second limiting structure and the connecting part, are all connected by screws, and the screws are provided with adjusting nuts for adjusting the position of the first limiting structure or the second limiting structure.

[0013] Compared with the prior art, the embodiments of this utility model have at least the following advantages or beneficial effects: In the technical solution of this application embodiment, two milling heads arranged symmetrically about the center on the ring side of the connecting part can accurately align with the two wing plate positions to be processed on the T-shaped pile. The square connecting column of each milling head is installed laterally and can rotate around its own axis. The milling teeth arranged axially on each side of the column can completely cover the cutting area of ​​the wing plate. At the same time, two hydraulic motors are respectively driven by the two square connecting columns, which can independently drive the corresponding milling head to operate, realizing the synchronous cutting of the two wing plate strata. The advantage is that, compared with the traditional transverse milling head, which needs to process the wing plate one by one and repeatedly move, this design can complete the milling of the two wing plates simultaneously, greatly reducing the operation steps and time, and significantly improving the processing efficiency. Moreover, the regular structure of the square connecting column and the orderly layout of the milling teeth can effectively ensure the width, levelness and connection accuracy of the wing plate with the pile body. The stable torque of the hydraulic drive is adapted to strata with different hardness. In addition, the connecting structure is conveniently connected to the work vehicle through the mounting seat, further taking into account the construction stability and flexibility, fundamentally solving the problem of low wing plate processing efficiency in traditional processes. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is an isometric view of a square milling head for processing T-shaped piles according to an embodiment of the present invention; Figure 2 This is a top view of a square milling head for processing T-shaped piles according to an embodiment of the present invention; Figure 3 This is a side view of a square milling head for processing T-shaped piles according to an embodiment of the present invention; Figure 4 This is a partial isometric view of a square milling head for processing T-shaped piles according to an embodiment of this utility model.

[0016] Icons: 1-Connecting structure, 101-Connecting part, 102-Mounting base, 2-Square connecting column, 3-Milling tooth, 4-Mounting column, 5-First limiting structure, 6-Screw, 7-Second limiting structure, 8-Gear set, 9-Hydraulic motor. Detailed Implementation

[0017] The embodiments of this application will now be described in detail with reference to the accompanying drawings. Example

[0018] Please refer to Figures 1-4This application provides a square milling head for processing T-shaped piles, comprising: a connecting structure 1, which includes a mounting base 102 and a connecting portion 101, wherein the mounting base 102 is disposed on the top of the connecting portion 101 for connection with a work vehicle; two milling heads, symmetrically disposed on the circumferential side of the connecting portion 101, and arranged centrally symmetrically about the center of the connecting portion 101; wherein each milling head includes a square connecting post 2 and a plurality of milling teeth 3, wherein the square connecting post 2 is laterally disposed on the circumferential side of the connecting portion 101 and is rotatably mounted on the connecting portion 101 about its own axis, and each side of the square connecting post 2 is provided with a plurality of milling teeth 3 along its axial direction; and a hydraulic drive structure, including two hydraulic motors 9, wherein the two hydraulic motors 9 are respectively connected to the two square connecting posts 2 for transmission.

[0019] In the technical solution of this application embodiment, the two milling heads arranged symmetrically about the center on the ring side of the connecting part 101 can accurately align with the two wing plate positions to be processed on the T-shaped pile. The square connecting column 2 of each milling head is installed laterally and can rotate around its own axis. The milling teeth 3 arranged axially on each side of the column can completely cover the cutting area of ​​the wing plate. At the same time, the two hydraulic motors 9 are respectively driven by the two square connecting columns 2, and can independently drive the corresponding milling head to operate, so as to realize the synchronous cutting of the two wing plate strata. The advantage is that, compared with the traditional transverse milling head, which needs to process the wing plate one by one and repeatedly move, this design can complete the milling of the two wing plates at the same time, which greatly reduces the operation steps and time, and significantly improves the processing efficiency. Moreover, the regular structure of the square connecting column 2 and the orderly layout of the milling teeth 3 can effectively ensure the width, levelness and accuracy of the wing plate and the connection with the pile body. The stable torque of the hydraulic drive is adapted to strata with different hardness. In addition, the connecting structure 1 is conveniently connected to the work vehicle through the mounting base 102, which further takes into account the construction stability and flexibility, and fundamentally solves the problem of low processing efficiency of wing plates in traditional processes.

[0020] In a preferred embodiment, the connecting portion 101 is provided with a mounting groove on the side facing the mounting base 102 for accommodating two hydraulic motors 9. The mounting base 102 is provided with a wiring through hole, which is connected to the mounting groove.

[0021] In the above embodiment, the mounting slot can centrally house the two hydraulic motors 9, avoiding direct exposure of the motors to the slag, rock friction or impact environment generated by the milling operation, effectively reducing wear on the motor housing, oil pollution and foreign object intrusion, and extending the service life of the core drive components; at the same time, the wiring through hole of the mounting base 102 is connected to the mounting slot, allowing the power supply line and control line of the hydraulic motor 9 to pass through the inside of the milling head without the need for external wiring.

[0022] In a preferred embodiment, each of the above-mentioned hydraulic motors 9 is driven by the corresponding square connecting column 2 via a gear set 8; Among them, the two hydraulic motors 9 mentioned above are at the same horizontal level.

[0023] In the above embodiments, the gear set 8 transmission can achieve precise speed regulation and torque amplification, efficiently converting the power of the hydraulic motor 9 into the low-speed, high-torque output required by the square connecting column 2. This not only adapts to the cutting loads of complex formations such as hard rock, but also reduces power loss and improves energy utilization efficiency through the rigid transmission of gear meshing. Simultaneously, the gear set 8 can bear the main impact loads during milling, avoiding problems such as oil leakage and component jamming caused by direct force on the hydraulic motor 9, significantly extending the life of the drive components. Furthermore, with the two hydraulic motors 9 at the same horizontal level, the transmission paths on both sides can be aligned... The lever arm and transmission ratio of the diameter are completely symmetrical, ensuring that the cutting speed and cutting force of the two milling heads on the two flanges are completely synchronized, effectively avoiding the milling head offset caused by uneven force, ensuring the consistency of the width, levelness and connection accuracy of the two flanges with the pile body. Moreover, the symmetrical layout and the compact structure of the gear set 8 can optimize the space utilization of the connection part 101, making it easy to integrate the motor into the mounting slot, and to achieve neat wiring with the wiring through hole, further improving the overall protection and maintenance convenience of the equipment. From power transmission to structural adaptation, it comprehensively solves the pain points of low efficiency and poor accuracy of traditional processes.

[0024] In a preferred embodiment, the connecting portion 101 is provided with two mounting posts 4, which are respectively located above the two square connecting posts 2. Each of the aforementioned mounting posts 4 is provided with a first limiting structure 5 on its front and rear sides for limiting the front and rear of the aforementioned mounting posts 4.

[0025] In the above embodiment, the two mounting columns 4 correspond to the two square connecting columns 2 respectively and are located above them, forming a "support structure with upper support and lower fixation". This structure helps to bear the radial force and overturning moment generated by the square connecting columns 2 during milling operations due to cutting hard rock or stratum resistance, reduces the deformation or displacement of the square connecting columns 2, and avoids the milling teeth 3 from deviating due to component deformation under stress, thus ensuring the dimensional accuracy of the flange processing. At the same time, the first limiting structure 5 on the front and rear sides of the mounting column 4 can strictly limit the front and rear displacement of the mounting column 4, further locking the working position of the square connecting columns 2 and resisting the front and rear movement caused by the stratum reaction force during milling. Especially when processing the two flanges simultaneously, it can ensure that the milling heads on both sides always maintain the preset spacing and horizontal posture, avoiding the inconsistency of the width of the two flanges or misalignment with the pile body caused by unilateral movement.

[0026] In a preferred embodiment, two second limiting structures 7 are symmetrically arranged on the front side of the connecting portion 101 for limiting the connecting portion 101 in the left and right directions.

[0027] In the above embodiment, two symmetrical second limiting structures 7 extend into the vertical groove of the T-shaped pile groove, and can directly form a limiting fit with the left and right side walls of the vertical groove, accurately locking the relative position of the connecting part 101 and the vertical groove, avoiding the connecting part 101 from moving left and right due to the reaction force of the stratum or the vibration of the equipment when milling the two wing plates, ensuring that the wing plate is always connected with the vertical pile body in the designed position, and effectively preventing the deviation of the pile structure size caused by the wing plate offset.

[0028] As a preferred embodiment, both the first limiting structure 5 and the second limiting structure 7 are shock absorbers.

[0029] In the above embodiment, both the first limiting structure 5 and the second limiting structure 7 are set as shock absorbers, which can absorb the vibration and impact during milling operations, buffer the force in the front and rear of the mounting column 4 and the left and right directions of the connecting part 101, and reduce component wear while accurately limiting the position, so as to maintain the stable operation of the milling head and ensure the processing accuracy of the two wing plates.

[0030] In a preferred embodiment, the first limiting structure 5 and the mounting post 4, and the second limiting structure 7 and the connecting part 101 are all connected by screws 6, and the screws 6 are provided with adjusting nuts for adjusting the position of the first limiting structure 5 or the second limiting structure 7.

[0031] In the above embodiments, the screw 6 ensures a stable connection between the first limiting structure 5 and the mounting column 4, and between the second limiting structure 7 and the connecting part 101, preventing the limiting structure from loosening due to milling vibration. The adjusting nut can precisely adjust the position of the limiting structure, which can not only adapt to the limiting requirements of the vertical groove of T-shaped piles of different sizes (such as adjusting the left and right spacing of the second limiting structure 7 according to the width of the groove, or finely adjusting the front and rear position of the first limiting structure 5 according to the force of the mounting column 4), but also allows for quick calibration without disassembly or replacement of parts when the limiting structure is worn due to long-term use or when there are slight deviations during installation, greatly reducing on-site debugging and maintenance costs. At the same time, it ensures that the limiting accuracy always meets the processing requirements, indirectly maintaining the stability and forming quality of synchronous milling of the two flanges.

[0032] Furthermore, unless otherwise explicitly specified or limited, the terms "installation" and "connection" in this application embodiment should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. The terms "upper," "lower," "left," "right," "inner," "outer," and "side," etc., are merely for reference to the direction in the accompanying drawings or the usual placement of the product during use. They are only for clearly describing this application and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limitations on this application. The terms "first," "second," etc., are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance; "multiple" refers to at least two. In this application embodiment, the limitations on relative positional relationships such as parallel, perpendicular, and aligned are all relative to the current technological level and are not absolutely strict limitations. Slight deviations are allowed; approximations of parallel, perpendicular, and aligned are all acceptable. For example, "A and B are parallel" means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 degrees and 10 degrees.

[0033] The above are only some embodiments and implementation methods of this application. The protection scope of this application is not limited thereto. In the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. Any combination of features in different embodiments is also within the protection scope of this application. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the protection scope of this application.

Claims

1. A square milling head for machining T-shaped piles, characterized in that, include: The connection structure (1) includes a mounting base (102) and a connecting part (101), wherein the mounting base (102) is disposed on the top of the connecting part (101) and is used to connect with the work vehicle; Two milling heads are symmetrically arranged on the annular side of the connecting part (101) and are centrally symmetrical about the center of the connecting part (101); Each milling head includes a square connecting post (2) and a plurality of milling teeth (3). The square connecting post (2) is laterally disposed on the circumferential side of the connecting part (101) and is rotatably mounted on the connecting part (101) about its own axis. Each side of the square connecting post (2) is provided with a plurality of milling teeth (3) along its axial direction. The hydraulic drive structure includes two hydraulic motors (9), which are respectively connected to the two square connecting columns (2).

2. A square milling head for processing T-shaped piles according to claim 1, characterized in that, The connecting part (101) is provided with a mounting groove on the side facing the mounting base (102) for accommodating the two hydraulic motors (9); The mounting base (102) is provided with a wiring through hole, which is connected to the mounting groove.

3. A square milling head for processing T-shaped piles according to claim 2, characterized in that, Each of the hydraulic motors (9) is driven by the corresponding square connecting column (2) via a gear set (8); The two hydraulic motors (9) are at the same horizontal level.

4. A square milling head for processing T-shaped piles according to any one of claims 1-3, characterized in that, The connecting part (101) is provided with two mounting posts (4), and the two mounting posts (4) are respectively located above the two square connecting posts (2); Each of the mounting posts (4) is provided with a first limiting structure (5) on its front and rear sides for limiting the front and rear of the mounting posts (4).

5. A square milling head for processing T-shaped piles according to claim 4, characterized in that, The front side of the connecting part (101) is provided with two symmetrically arranged second limiting structures (7) for limiting the connecting part (101) in the left and right directions.

6. A square milling head for processing T-shaped piles according to claim 5, characterized in that, Both the first limiting structure (5) and the second limiting structure (7) are shock absorbers.

7. A square milling head for processing T-shaped piles according to claim 6, characterized in that, The first limiting structure (5) and the mounting post (4) are connected by screws (6), and the second limiting structure (7) and the connecting part (101) are connected by screws (6). The screws (6) are provided with adjusting nuts for adjusting the position of the first limiting structure (5) or the second limiting structure (7).

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