Double-wheel milling deep stirring device

Abstract

The utility model provides a double-wheel milling deep stirring device, which relates to the technical field of double-wheel milling and comprises a base frame, a connecting flange plate is arranged at the top of the base frame, connecting shafts are arranged on the front side and the rear side of the base frame at the corners of the bottom, milling cutter plates are arranged on the outer surfaces of the connecting shafts, and milling cutter plates are arranged on the outer surfaces of the milling cutter plates. The milling cutter comprises a plurality of milling cutter discs, a plurality of milling teeth are fixed on the outer surfaces of the plurality of milling cutter discs at equal intervals in the circumferential direction, inner cavities are formed in the plurality of milling cutter discs, and butt joint rings are arranged in the plurality of inner cavities. In actual use, the cross shaft can be inserted into the cross groove in the butt joint ring, so that the connecting shaft is connected with the milling cutter disc, the milling cutter disc can be driven to rotate when the connecting shaft rotates, and the milling teeth are driven to carry out cutting operation.

Description

Technical Field

[0001] The utility model relates to the technical field of double-wheel milling, in particular to a double-wheel milling deep stirring device. Background Art

[0002] During underground diaphragm wall construction, trenches often need to be excavated in hard ground containing large amounts of gravel, boulders, and rocks. Twin-wheel slot milling machines are often used for these hard formations. When a twin-wheel slot milling machine is in operation, two hydraulic motors drive the two milling wheels, cutting away the soil and rock below and rolling the crushed soil and rock upward, gradually excavating the trench.

[0003] At present, the double-wheel milling cutter of the double-wheel slot milling machine is one of the important components of the double-wheel slot milling machine. At the beginning of construction, the first milling tooth of the double-wheel milling cutter will first contact the hardest hard formation. During the cutting process, when the first milling tooth contacts the harder stone, it will generate greater cutting resistance. When the cutting resistance is large, it is easy to damage the docking part of the milling cutter. Utility Model Content

[0004] In order to solve the existing technical problems, the utility model provides a double-wheel milling deep stirring device.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A double-wheel milling deep stirring device includes a machine base frame, a connecting flange is provided on the top of the machine base frame, connecting shafts are provided on the front and rear sides of the machine base frame at the bottom corners, the outer surfaces of multiple connecting shafts are provided with milling cutter discs, the outer surfaces of multiple milling cutter discs are fixed with multiple milling teeth at equal distances along the circumferential direction, the interiors of multiple milling cutter discs are provided with inner cavities, and the interiors of multiple inner cavities are provided with docking rings.

[0007] Optionally, a cross groove is formed on the top of each of the docking rings and extends to the bottom, and a cross shaft is fixed on one end of each of the connecting shafts.

[0008] Optionally, the tops of the plurality of inner cavities all penetrate to the top of the milling cutter disc, and the bottoms of the plurality of inner cavities all penetrate to the bottom of the milling cutter disc.

[0009] Optionally, the plurality of cross shafts are correspondingly engaged in the interior of the cross slot, the bottoms of the plurality of milling cutter discs are provided with end covers, and the tops of the plurality of end covers are correspondingly pressed onto the bottom of the docking ring.

[0010] Optionally, the tops of the multiple docking rings are slidably fitted with the inner top surface of the inner cavity, and the tops of the multiple milling cutter discs are equidistantly provided with multiple through holes extending to the bottom along the circumferential direction, and the multiple through holes correspond to and penetrate the docking rings and the end covers.

[0011] Optionally, the outer surfaces of the multiple connecting shafts are fitted with sealing covers, the bottoms of the multiple sealing covers are fixed with sealing sleeves near the inner sides, the inner walls of the multiple sealing sleeves are sealed and fitted with the outer surfaces of the connecting shafts, and the sealing sleeves extend between the inner cavity and the through-opening at the top of the milling cutter disc.

[0012] Optionally, a sealing groove is provided on the top of the milling cutter disc, and a sealing ring is fixed to the bottom of the sealing cover near the edge of the outer surface, and the sealing ring is sealingly engaged in the interior of the sealing groove.

[0013] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described below at the same time:

[0014] 1. In the utility model, an inner cavity is opened inside the milling cutter disc, and a docking ring is arranged inside the inner cavity. In actual use, the cross shaft can be inserted into the cross groove on the docking ring to connect the connecting shaft with the milling cutter disc. When the connecting shaft rotates, the milling cutter disc can be driven to rotate, driving the milling teeth to perform cutting operations.

[0015] 2. In the present invention, in actual use, the metal material hardness of the docking ring is greater than that of the cross shaft, so when the milling teeth are subjected to greater resistance, the cross shaft will be broken first, thereby protecting the connection inside the milling cutter disc from damage and facilitating subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described below are only some embodiments. A person skilled in the art can derive other drawings based on these drawings without inventive effort. In the drawings:

[0017] Figure 1 This is a schematic diagram of the main three-dimensional structure of a double-wheel milling deep stirring device proposed in the utility model;

[0018] Figure 2 This is a schematic diagram of the main perspective structure of a milling cutter disc in a double-wheel milling deep stirring device proposed in the utility model;

[0019] Figure 3 The utility model provides a schematic diagram of the cross-sectional three-dimensional structure of a milling cutter disc in a double-wheel milling deep stirring device;

[0020] Figure 4 For this utility model Figure 3 Magnified view at point A in the middle.

[0021] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0022] 1. Machine base; 2. Connecting flange; 3. Milling cutter; 4. Milling teeth; 5. End cover; 6. Connecting shaft; 7. Sealing cover; 8. Cross shaft; 9. Sealing sleeve; 10. Sealing ring; 11. Sealing groove; 12. Through hole; 13. Inner cavity; 14. Docking ring; 15. Cross groove.

[0023] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0024] The present invention will now be described in further detail with reference to the accompanying drawings.

[0025] Example 1, as Figure 1-4 As shown, the utility model provides a technical solution for a double-wheel milling deep stirring device: it includes a machine base frame 1, a connecting flange 2 is provided on the top of the machine base frame 1, and connecting shafts 6 are provided on the front and rear sides of the machine base frame 1 at the bottom corners, and the outer surfaces of multiple connecting shafts 6 are provided with milling discs 3, and the outer surfaces of the multiple milling discs 3 are fixed with multiple milling teeth 4 at equal distances along the circumferential direction, and the interiors of the multiple milling discs 3 are provided with inner cavities 13, and the interiors of the multiple inner cavities 13 are provided with docking rings 14.

[0026] The effect achieved by the entire embodiment 1 is that an inner cavity 13 is opened inside the milling cutter disc 3, and a docking ring 14 is arranged inside the inner cavity 13. In actual use, the cross shaft 8 can be inserted into the cross groove 15 on the docking ring 14, thereby connecting the connecting shaft 6 to the milling cutter disc 3. When the connecting shaft 6 rotates, the milling cutter disc 3 can be driven to rotate, driving the milling teeth 4 to perform cutting operations.

[0027] Example 2, as Figure 1-4As shown, the tops of the multiple docking rings 14 are provided with a cross groove 15 that penetrates to the bottom, one end of the multiple connecting shafts 6 is fixed with a cross shaft 8, the tops of the multiple inner cavities 13 penetrate to the top of the milling cutter disc 3, the bottoms of the multiple inner cavities 13 penetrate to the bottom of the milling cutter disc 3, and the multiple cross shafts 8 are correspondingly engaged in the inside of the cross groove 15. The bottoms of the multiple milling cutter discs 3 are provided with end covers 5, and the tops of the multiple end covers 5 are correspondingly pressed on the bottom of the docking rings 14. The tops of the multiple docking rings 14 are slidably fitted with the internal top surfaces of the inner cavities 13, and the tops of the multiple milling cutter discs 3 are evenly spaced along the circumferential direction. There are multiple through holes 12 extending to the bottom, and the multiple through holes 12 correspond to and penetrate the docking ring 14 and the end cover 5. The outer surfaces of the multiple connecting shafts 6 are fitted with sealing covers 7, and the bottoms of the multiple sealing covers 7 are fixed with sealing sleeves 9 near the inner sides. The inner walls of the multiple sealing sleeves 9 correspond to and seal with the outer surfaces of the connecting shafts 6, and the sealing sleeves 9 extend between the inner cavity 13 and the through opening at the top of the milling cutter disc 3. A sealing groove 11 is provided at the top of the milling cutter disc 3, and a sealing ring 10 is fixed at the bottom of the sealing cover 7 near the edge of the outer surface, and the sealing ring 10 is sealed and engaged with the inside of the sealing groove 11.

[0028] The effect achieved by the entire embodiment 2 is that the metal material hardness of the docking ring 14 is greater than that of the metal material of the cross shaft 8, so when the milling tooth 4 is subjected to greater resistance, the cross shaft 8 will be broken first, thereby protecting the internal connection of the milling cutter disc 3 from damage and facilitating subsequent maintenance. When assembling the milling cutter disc 3, it is necessary to make the through holes 12 on the milling cutter disc 3, the docking ring 14 and the end cover 5 correspond to each other, and then fix them through external bolts. When the milling cutter disc 3 is installed on the machine base 1, the sealing ring 10 and the sealing groove 11 are engaged with each other, so that the outer side of the sealing cover 7 is sealed with the milling cutter disc 3, and the sealing sleeve 9 is sealed with the connecting shaft 6 to make the inner part of the sealing cover 7 sealed, thereby preventing water from entering the interior of the milling cutter disc 3 during deep cutting.

[0029] Working principle: When using this device, the cross shaft 8 can be inserted into the cross groove 15 on the docking ring 14 to connect the connecting shaft 6 to the milling disc 3. When the connecting shaft 6 rotates, the milling disc 3 can be driven to rotate, driving the milling teeth 4 to perform cutting operations. The metal material hardness of the docking ring 14 is greater than that of the cross shaft 8. Therefore, when the milling teeth 4 are subjected to greater resistance, the cross shaft 8 will be broken first, thereby protecting the internal connection of the milling disc 3 from damage and facilitating subsequent maintenance. When assembling the milling disc 3, the through holes 12 on the milling disc 3, the docking ring 14 and the end cover 5 need to be aligned, and then fixed with external bolts to complete the assembly.

[0030] The present invention is not limited to the above-described embodiments. Any structural changes made under the guidance of the present invention should be understood by anyone. Any technical solution that is the same or similar to the present invention falls within the scope of protection of the present invention. The technology, shape, and structure not described in detail in the present invention are all known technologies.

Claims

1. A double-wheel milling deep stirring device, comprising a machine base (1), characterized in that: A connecting flange (2) is provided on the top of the machine base frame (1), and connecting shafts (6) are provided at the bottom corners on both the front and rear sides of the machine base frame (1), and multiple milling discs (3) are provided on the outer surfaces of the multiple milling discs (3), and multiple milling teeth (4) are fixed on the outer surfaces of the multiple milling discs (3) at equal intervals along the circumferential direction, and multiple inner cavities (13) are provided inside the multiple milling discs (3), and docking rings (14) are provided inside the multiple inner cavities (13).

2. A double-wheel milling deep stirring device according to claim 1, characterized in that: The tops of the plurality of docking rings (14) are each provided with a cross groove (15) extending through to the bottom, and one end of the plurality of connecting shafts (6) is each fixed with a cross shaft (8).

3. A double-wheel milling deep stirring device according to claim 2, characterized in that: The tops of the plurality of inner cavities (13) all penetrate to the top of the milling cutter disc (3), and the bottoms of the plurality of inner cavities (13) all penetrate to the bottom of the milling cutter disc (3).

4. A double-wheel milling deep stirring device according to claim 3, characterized in that: The plurality of cross shafts (8) are correspondingly engaged in the interior of the cross slot (15), the bottoms of the plurality of milling cutter discs (3) are provided with end covers (5), and the tops of the plurality of end covers (5) are correspondingly pressed into the bottom of the docking ring (14).

5. A double-wheel milling deep stirring device according to claim 4, characterized in that: The tops of the plurality of docking rings (14) are slidably fitted with the inner top surface of the inner cavity (13), and the tops of the plurality of milling cutter discs (3) are provided with a plurality of through holes (12) extending to the bottom at equal intervals along the circumferential direction, and the plurality of through holes (12) are correspondingly penetrated by the docking rings (14) and the end covers (5).

6. A double-wheel milling deep stirring device according to claim 5, characterized in that: The outer surfaces of the plurality of connecting shafts (6) are fitted with sealing covers (7), the bottoms of the plurality of sealing covers (7) are fixed with sealing sleeves (9) near the inner sides, the inner walls of the plurality of sealing sleeves (9) are sealed and fitted with the outer surfaces of the connecting shafts (6), and the sealing sleeves (9) extend between the inner cavity (13) and the through opening at the top of the milling cutter disc (3).

7. The double-wheel milling deep stirring device according to claim 6, characterized in that: A sealing groove (11) is provided on the top of the milling cutter disc (3), and a sealing ring (10) is fixed to the bottom of the sealing cover (7) near the edge of the outer surface. The sealing ring (10) is sealed and engaged inside the sealing groove (11).

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