Milling mechanism

Abstract

The utility model discloses a milling mechanism which comprises a main connecting frame, at least one set of auxiliary connecting frames and a milling head, telescopic elements are symmetrically installed at the two ends of the main connecting frame, the telescopic elements are jointly and vertically connected with an installation frame in a hinged mode, and the milling head is connected with the installation frame through the auxiliary connecting frames. The milling head comprises a roller and a rotating element, the roller comprises a first roller, a middle roller and a second roller which coaxially extend, and the rotating element is mounted in the middle roller and provided with an output middle shaft which extends in the axial direction and penetrates through the rotating element at the central axis position; one end of the output middle shaft is connected with the second roller, and the other opposite end of the output middle shaft is simultaneously connected with the first roller and the middle roller to drive the first roller, the middle roller and the second roller to synchronously rotate, so that the group number of the auxiliary connecting frames and the milling heads can be flexibly adjusted, the rotating element can be protected, and the rotating element is prevented from occupying extra space.

Description

Technical Field

[0001] This utility model relates to the field of milling machine equipment technology, and in particular to milling mechanisms. Background Technology

[0002] Milling machines are one of the main types of machinery used for cleaning truck beds or maintaining roads. They are used to remove frozen coal inside truck beds or for excavating and renovating asphalt concrete surfaces.

[0003] Generally, the milling roller on a milling machine includes multiple milling heads. For example, multiple milling heads occupy the entire width of the carriage, so that the carriage can be cleaned in one go. The specific number of milling heads is determined by the axial extension length of the milling head itself and the overall width of the carriage. The milling roller is also called a milling head or milling rotor.

[0004] In existing technologies, the rotational power of the milling head comes from parts outside the milling head itself. For example, the milling drum and milling machine in the utility model patent with publication number CN215629239U drive the milling head to rotate through a rotating element on the outer end of the axial direction in conjunction with a reducer. Alternatively, a rotating element perpendicular to the axis of the milling head can drive the milling head to rotate via a belt or chain. However, regardless of the method used to drive the milling head, there are drawbacks such as requiring additional space, which can easily affect the installation and flexible operation of the milling head. Furthermore, these rotating drive components are prone to damage. Utility Model Content

[0005] This application provides a milling mechanism that allows for flexible adjustment of the number of sets of auxiliary connecting frames and milling heads, making it convenient to use. Furthermore, it can drive the milling head to rotate normally for construction operations without increasing the extra space occupied by the milling head, facilitating the installation and flexible operation of the milling head. At the same time, the milling head can effectively protect rotating components and extend their service life.

[0006] This application provides a milling mechanism, including a main connecting frame and at least one set of auxiliary connecting frames and a milling head. The main connecting frame is used to be mounted on a milling machine. Telescopic elements are symmetrically mounted at both ends of the main connecting frame. The symmetrically mounted telescopic elements are hinged together and vertically connected to a mounting frame. The milling head is connected to the mounting frame through the auxiliary connecting frames, and a swing cylinder for driving the auxiliary connecting frames to swing is mounted on the mounting frame.

[0007] The milling head includes a roller and a rotating element. The roller includes a first roller, an intermediate roller, and a second roller extending coaxially. The rotating element is installed inside the intermediate roller and has an output central shaft extending along the axial direction and passing through the central axis of the rotating element. One end of the output central shaft is connected to the second roller, and the other end is connected to both the first roller and the intermediate roller, so as to drive the first roller, the intermediate roller, and the second roller to rotate synchronously.

[0008] In one possible implementation, the telescopic element is a lifting cylinder.

[0009] In one possible implementation, the milling mechanism includes three sets of auxiliary connecting frames and milling heads, the extension axis of the main connecting frame and the mounting frame is the same as the extension axis of the milling head, the three sets of auxiliary connecting frames and the milling heads are evenly distributed on the mounting frame along the extension axis, wherein the auxiliary connecting frames on both sides are close to the two ends of the mounting frame.

[0010] In one possible implementation, the mounting bracket includes a connecting pipe and connecting arms vertically connected to both ends of the connecting pipe. The connecting pipe is a square steel pipe, and the connecting arm includes two connecting plates symmetrically distributed along the extension axis. One end of each connecting plate is fixedly sleeved on the connecting pipe, and the other end is hinged to both sides of the telescopic end of the telescopic element in a clamping manner.

[0011] In one possible implementation, the two ends of the output shaft are a main output end and a secondary output end, respectively. Both the main output end and the secondary output end are irregularly shaped structures. The first roller, the intermediate roller and the second roller are respectively provided with irregularly shaped sleeves that cooperate with the irregularly shaped structures. The irregularly shaped structures are square structures or toothed structures.

[0012] In one possible implementation, the auxiliary connecting frame includes a first connecting plate, a second connecting plate distributed along the extending axial direction, and a main connecting plate perpendicularly connecting the first connecting plate and the second connecting plate. The irregularly shaped sleeves on the first roller, the intermediate roller, and the second roller are respectively the first sleeve, the intermediate sleeve, and the second sleeve. A first bearing seat is commonly fitted on the first sleeve and the intermediate sleeve. The first connecting plate extends between the first roller and the intermediate roller and is fixedly fitted on the first bearing seat. The second connecting plate extends between the second roller and the intermediate roller and is fixedly fitted on the body of the rotating element.

[0013] In one possible implementation, the rotating element is a hollow motor, and the second connecting plate is fixedly sleeved on the end step of the hollow motor.

[0014] In one possible implementation, a second bearing seat is fitted onto the second sleeve, and the second connecting plate is fixedly connected to the outer ring of the second bearing seat.

[0015] In one possible implementation, the outer ends of the first connecting plate and the second connecting plate are hinged to the output end of the yaw cylinder on one side of the connecting pipe via the same hinge axis, and the outer ends of the first connecting plate and the second connecting plate are respectively hinged to transition connecting plates on the other side of the connecting pipe, with the other end of the transition connecting plate fixedly connected to the connecting pipe.

[0016] Beneficial effects: Compared with the prior art, the milling mechanism provided in this application connects the milling head through a main connecting frame, a mounting frame, and a secondary connecting frame. The yaw cylinder on the mounting frame drives the milling head to yaw through the secondary connecting frame, which cooperates with the rotation of the milling head to complete the milling work. At the same time, the rotating element inside the milling head drives the first roller, the intermediate roller, and the second roller to rotate synchronously, thereby effectively protecting the rotating element and extending its service life. Meanwhile, the rotating element does not occupy additional space, making the installation and use of the milling head more convenient.

[0017] One or more sets of auxiliary connecting frames and milling heads can be flexibly configured according to different work needs, making them more convenient to use;

[0018] During the milling process, depending on the different surfaces to be processed, the oscillating cylinder drives the corresponding milling head to oscillate through three sets of auxiliary connecting frames, which is suitable for processing surfaces of different heights, making the operation more flexible and the work efficiency higher.

[0019] The second connecting plate is not only fitted onto the end step of the hollow motor, but also fixedly connected to the outer ring of the second bearing housing. This allows the rotational stability of the main output end of the output shaft to be further enhanced through the auxiliary connecting frame.

[0020] These and other objects, features and advantages of this utility model will be fully realized through the following detailed description. Attached Figure Description

[0021] Figure 1 A three-dimensional structural schematic diagram of the milling mechanism of this application is shown.

[0022] Figure 2 A partial front view of the milling mechanism of this application is shown.

[0023] Figure 3 A rear view partial structural schematic diagram of the milling mechanism of this application is shown.

[0024] Figure 4 An exploded view of the milling head in this application is shown.

[0025] Figure 5 A cross-sectional view of the milling head in this application is shown. Detailed Implementation

[0026] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0027] Those skilled in the art should understand that, in the disclosure of this specification, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0028] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0029] refer to Figures 1 to 5 This application provides a milling mechanism, including a main connecting frame 10, at least one set of auxiliary connecting frames 20, and a milling head 30. The main connecting frame 10 is used to be mounted on a milling machine. Telescopic elements 11, such as lifting cylinders, are symmetrically mounted at both ends of the main connecting frame 10. The symmetrically mounted telescopic elements 11 are hinged together and vertically connected to a mounting frame 12. The milling head 30 is connected to the mounting frame 12 through the auxiliary connecting frames 20. At the same time, a swing cylinder 13 is mounted on the mounting frame 12 to drive the auxiliary connecting frame 20 to swing. This allows the milling head 30 to reverse and compress the telescopic shaft of the swing cylinder 13 based on the protrusion height of the surface to be processed during milling operations, thereby preventing damage to the milling head 30. Alternatively, the milling head 30 can be pushed forward by the telescopic shaft of the swing cylinder 13, allowing the milling head 30 to perform cleaning operations more thoroughly.

[0030] The milling head 30 includes a roller 31 and a rotating element 32. The roller 31 includes a first roller 311, an intermediate roller 313, and a second roller 312 extending coaxially. The rotating element 32 is installed inside the intermediate roller 313. The rotating element 32 has an output central shaft 33 extending along the axial direction and passing through the central axis of the rotating element 32. One end of the output central shaft 33 is connected to the second roller 312, and the other end of the output central shaft 33 is connected to both the first roller 311 and the intermediate roller 313, thereby driving the first roller 311, the intermediate roller 313, and the second roller 312 to rotate synchronously.

[0031] Therefore, the milling mechanism provided in this application has the following advantages: First, the milling head 30 is mounted on the milling machine through the secondary connecting frame 20, the mounting frame 12 and the main connecting frame 10, and one or more sets of secondary connecting frames 20 and milling heads 30 can be flexibly configured, which is convenient to use. Second, the rotating element 32 is located inside the drum 31, which will not occupy extra space of the milling head 30, which facilitates the installation and use of the milling head 30. At the same time, it can also effectively protect the rotating element 32 in complex working environments and extend the service life of the rotating element 32.

[0032] In one embodiment, the milling mechanism includes three sets of auxiliary connecting frames 20 and milling heads 30, wherein the extending axial direction of the main connecting frame 10 and the mounting frame 12 is the same as the extending axial direction of the milling head 30, and the three sets of auxiliary connecting frames 20 and milling heads 30 are evenly distributed on the mounting frame 12 along the extending axial direction, wherein the auxiliary connecting frames 20 on both sides are close to the two ends of the mounting frame 12.

[0033] In one embodiment, the mounting frame 12 includes a connecting pipe 121 and connecting arms 122 vertically connected to both ends of the connecting pipe 121. The connecting pipe 121 is a square steel pipe with strong structural strength and is also easy to purchase and assemble. The connecting arm 122 includes two connecting plates symmetrically distributed along the extension axis. One end of the connecting plate is fixedly sleeved on the connecting pipe 121, and the other end of the connecting plate is hinged to both sides of the telescopic end of the telescopic element 11 in a clamping manner, so that the connection between the mounting frame 12 and the telescopic element 11 is more stable and reliable.

[0034] In one embodiment, the two ends of the output shaft 33 are a main output end 331 and a secondary output end 332, respectively. Both the main output end 331 and the secondary output end 332 are irregularly shaped structures. Simultaneously, the first roller 311, the intermediate roller 313, and the second roller 312 are respectively provided with irregularly shaped sleeves that mate with the irregularly shaped structures. These irregularly shaped structures are either square or toothed. Thus, the cooperation between the irregularly shaped structures and the irregularly shaped sleeves enhances the connection between the output shaft 33 and the first roller 311, the intermediate roller 313, and the second roller 312. The connection strength is such that the irregular structures of the main output end 331 and the auxiliary output end 332 on the output shaft 33 can be the same or different. At the same time, the irregular structures of the parts of the auxiliary output end 332 that mate with the first roller 311 and the intermediate roller 313 can also be the same or different. This will not affect the power transmission of the output shaft 33 at different points. For example, the main output end 331 can be a square structure, the part of the auxiliary output end 332 that mates with the first roller 311 can be a toothed structure, and the part of the auxiliary output end 332 that mates with the intermediate roller 313 can be a square structure, etc.

[0035] In one embodiment, the secondary connecting frame 20 includes a first connecting plate 21, a second connecting plate 22 distributed along the extending axial direction, and a main connecting plate 23 perpendicularly connecting the first connecting plate 21 and the second connecting plate 22. The irregularly shaped sleeves on the first roller 311, the intermediate roller 313, and the second roller 312 are respectively the first sleeve 341, the intermediate sleeve 343, and the second sleeve 342. The first sleeve 341 and the intermediate sleeve 343 are jointly fitted with a first bearing seat 35. Meanwhile, the first connecting plate 21 extends between the first roller 311 and the intermediate roller 313 and is fixedly fitted on the first bearing seat 35. In addition, the second connecting plate 22 extends between the second roller 312 and the intermediate roller 313 and is fixedly fitted on the body of the rotating element 32, so that the secondary connecting frame 20 can stably connect the milling head 30.

[0036] In one embodiment, the rotating element 32 is a hollow motor, and the second connecting plate 22 is fixedly sleeved on the end step of the hollow motor.

[0037] More preferably, a second bearing seat 36 is fitted onto the second sleeve 342, and the second connecting plate 22 is fixedly connected to the outer ring of the second bearing seat 36. In this way, the rotation of the main output end 331 of the output shaft 33 can be stabilized through the connection relationship between the second connecting plate 22 and the second bearing seat 36. At the secondary output end 332, on the one hand, the secondary output end 332 cooperates with the first sleeve 341 and the intermediate sleeve 343, and on the other hand, the first connecting plate 21 cooperates with the first bearing seat 35 on the irregular sleeve, so that the output shaft 33 can stably drive the first roller 311, the intermediate roller 313 and the second roller 312 to rotate synchronously.

[0038] In one embodiment, the outer ends of the first connecting plate 21 and the second connecting plate 22 are hinged to the output end of the yaw cylinder 13 on one side of the connecting pipe 121 via the same hinge shaft 24. Simultaneously, transition connecting plates 25 are respectively hinged to the outer ends of the first connecting plate 21 and the second connecting plate 22 on the other side of the connecting pipe 121, and the other end of the transition connecting plate 25 is fixedly connected to the connecting pipe 121. Whether the milling head 30 reverses and compresses the telescopic shaft of the yaw cylinder 13, or the yaw cylinder 13 pushes the milling head 30 forward via the telescopic shaft, the auxiliary connecting frame 20 can perform yaw motion using the hinge point at the transition connecting plate 25 as a rotation fulcrum.

[0039] It should be noted that the terms "first" and "second" used in this application are for descriptive purposes only and do not indicate any order. They should not be construed as indicating or implying relative importance, and can be interpreted as names.

[0040] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations may be made to the implementation of the present invention without departing from the stated principles.

Claims

1. A milling mechanism, characterized in that, The device includes a main connecting frame and at least one set of auxiliary connecting frames and a milling head. The main connecting frame is used to be mounted on a milling machine. Telescopic elements are symmetrically mounted at both ends of the main connecting frame. The symmetrically mounted telescopic elements are hinged together and vertically connected to a mounting frame. The milling head is connected to the mounting frame through the auxiliary connecting frame, and a yaw cylinder for driving the auxiliary connecting frame to yaw is mounted on the mounting frame. The milling head includes a roller and a rotating element. The roller includes a first roller, an intermediate roller, and a second roller extending coaxially. The rotating element is installed inside the intermediate roller and has an output central shaft extending along the axial direction and passing through the central axis of the rotating element. One end of the output central shaft is connected to the second roller, and the other end is connected to both the first roller and the intermediate roller, so as to drive the first roller, the intermediate roller, and the second roller to rotate synchronously.

2. The milling mechanism as described in claim 1, characterized in that, The telescopic element is a lifting cylinder.

3. The milling mechanism as described in claim 1, characterized in that, The milling mechanism includes three sets of auxiliary connecting frames and milling heads. The extension axis of the main connecting frame and the mounting frame is the same as the extension axis of the milling head. The three sets of auxiliary connecting frames and milling heads are evenly distributed on the mounting frame along the extension axis, wherein the auxiliary connecting frames on both sides are close to the two ends of the mounting frame.

4. The milling mechanism as described in claim 3, characterized in that, The mounting bracket includes a connecting pipe and connecting arms vertically connected to both ends of the connecting pipe. The connecting pipe is a square steel pipe. The connecting arm includes two connecting plates symmetrically distributed along the extension axis. One end of the connecting plate is fixedly sleeved on the connecting pipe, and the other end is hinged to both sides of the telescopic end of the telescopic element in a clamping manner.

5. The milling mechanism as described in claim 4, characterized in that, The two ends of the output shaft are the main output end and the auxiliary output end, respectively. Both the main output end and the auxiliary output end are irregularly shaped structures. The first roller, the intermediate roller and the second roller are respectively provided with irregularly shaped sleeves that cooperate with the irregularly shaped structures. The irregularly shaped structures are square structures or toothed structures.

6. The milling mechanism as described in claim 5, characterized in that, The auxiliary connecting frame includes a first connecting plate, a second connecting plate distributed along the extending axial direction, and a main connecting plate perpendicularly connecting the first connecting plate and the second connecting plate. The irregularly shaped sleeves on the first roller, the intermediate roller, and the second roller are respectively the first sleeve, the intermediate sleeve, and the second sleeve. A first bearing seat is commonly fitted on the first sleeve and the intermediate sleeve. The first connecting plate extends between the first roller and the intermediate roller and is fixedly fitted on the first bearing seat. The second connecting plate extends between the second roller and the intermediate roller and is fixedly fitted on the body of the rotating element.

7. The milling mechanism as described in claim 6, characterized in that, The rotating element is a hollow motor, and the second connecting plate is fixedly sleeved on the end step of the hollow motor.

8. The milling mechanism as described in claim 7, characterized in that, The second sleeve is fitted with a second bearing seat, and the second connecting plate is fixedly connected to the outer ring of the second bearing seat.

9. The milling mechanism as described in claim 6, characterized in that, The outer ends of the first connecting plate and the second connecting plate are hinged to the output end of the oscillating cylinder on one side of the connecting pipe via the same hinge axis. The outer ends of the first connecting plate and the second connecting plate are respectively hinged to transition connecting plates on the other side of the connecting pipe. The other end of the transition connecting plate is fixedly connected to the connecting pipe.

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