Milling head

Abstract

The utility model discloses a milling head. The milling head comprises a roller, a rotating element and a connecting frame, the rollers comprise a first roller, a middle roller and a second roller which coaxially extend; the rotating element is installed 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, the second roller is arranged at the main output end of the output middle shaft in a sleeving mode through a second sleeve, and the first roller and the middle roller are arranged at the auxiliary output end of the output middle shaft in a sleeving mode through a first sleeve and a middle sleeve respectively. The first sleeve and the middle sleeve have the same outer diameter and are jointly sleeved with a first bearing seat. The connecting frame comprises a first connecting plate and a second connecting plate, the first connecting plate is arranged between the first roller and the middle roller and arranged on the first bearing seat in a sleeving mode, and the second connecting plate is arranged between the second roller and the middle roller and arranged at the end step of the rotating element in a sleeving mode, so that the rollers can be driven to rotate through the built-in rotating element; and meanwhile, the overall structure is more compact.

Description

Technical Field

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

[0002] A milling roller, also known as a milling drum or milling rotor, is generally composed of one or more milling heads and is used to clean the surface of a road or vehicle body.

[0003] In existing technologies, milling heads are generally driven to rotate in a directional manner by an external driving force. For example, utility model patent CN215629239U discloses a milling drum and a milling machine. The drive mechanism is connected to the reducer of the milling drum. After being reduced in speed by the reducer, the speed is transmitted to the inner cylinder of the milling drum, driving the inner cylinder to rotate, which in turn drives the outer cylinder to rotate, thus realizing the construction operation of the milling drum. Since the reducer is located at the end of the milling drum and protrudes from the end of the milling drum, and the working environment of the milling drum is often very harsh, the reducer is easily damaged. In addition, the milling drum itself occupies a large axial space. Setting a reducer at the axial end will inevitably make the axial space occupied even larger, which is not conducive to the storage and flexible operation of the milling drum. Utility Model Content

[0004] This application provides a milling head in which the power mechanism does not occupy additional space and is more convenient to use, thereby solving the above-mentioned problems.

[0005] This application provides a milling head, including a roller, a rotating element, and a connecting frame;

[0006] The roller includes a first roller, an intermediate roller, and a second roller that extend coaxially.

[0007] The rotating element is installed inside the intermediate roller and has an output shaft extending along the axial direction and passing through the rotating element at the central axis position. The output shaft has a main output end and a secondary output end opposite to each other. The second roller is sleeved on the main output end through a second sleeve. The first roller and the intermediate roller are respectively sleeved on the secondary output end through a first sleeve and an intermediate sleeve. The first sleeve and the intermediate sleeve have the same outer diameter, and the first sleeve and the intermediate sleeve are jointly sleeved on a first bearing seat.

[0008] The connecting frame includes a first connecting plate and a second connecting plate. The first connecting plate is located between the first roller and the intermediate roller and is fixedly sleeved on the first bearing seat. The second connecting plate is located between the second roller and the intermediate roller and is fixedly sleeved at the end step of the rotating element.

[0009] In one possible implementation, the rotating element is a hollow motor.

[0010] In one possible implementation, the two ends of the output shaft are provided with irregular structures, and the first sleeve, the intermediate sleeve and the second sleeve are respectively provided with irregular holes that cooperate with the irregular structures.

[0011] In one possible implementation, the irregular structure is a square structure or a toothed structure.

[0012] In one possible implementation, the first roller, the intermediate roller, and the second roller are respectively provided with connecting plates that connect the first sleeve, the intermediate sleeve, and the second sleeve. Reinforcing ribs are uniformly connected to any one or both sides of the connecting plates along the circumferential direction, and the reinforcing ribs are connected to the inner sidewall of the roller.

[0013] In one possible implementation, a second bearing seat is fitted onto the surface of the second sleeve, and the outer ring of the second bearing seat is connected to the second connecting plate by fasteners.

[0014] Beneficial effects: Compared with the prior art, the milling head provided in this application sets the rotating element inside the drum. The output shaft of the rotating element is connected to the first drum, the second drum and the intermediate drum at the same time, driving the first drum, the second drum and the intermediate drum to rotate synchronously, so as to realize the construction operation of the milling head. Thus, the rotating element can be protected by the drum, which makes the service life of the rotating element longer. At the same time, the rotating element does not occupy additional space, making the milling head easy to store and flexible in operation, especially suitable for environments with limited construction space.

[0015] These and other objects, features and advantages of this utility model will be fully realized through the following detailed description. Attached Figure Description

[0016] Figure 1 A three-dimensional structural schematic diagram of the milling head of this application is shown.

[0017] Figure 2 An exploded structural diagram of the milling head of this application is shown.

[0018] Figure 3 A cross-sectional view of the milling head of this application is shown. Detailed Implementation

[0019] 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.

[0020] 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.

[0021] 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.

[0022] refer to Figures 1 to 3 This application provides a milling head, including a roller 10, a rotating element 20, and a connecting frame 30; wherein the roller 10 includes a first roller 11, an intermediate roller 13, and a second roller 12 extending coaxially; wherein the rotating element 20 is installed in the intermediate roller 13 and has an output central shaft 21 extending along the axial direction and passing through the central axis of the rotating element 20, wherein the rotating element 20 is preferably implemented as a hollow motor. The output shaft 21 has a main output end 211 and a secondary output end 212. The second roller 12 is mounted on the main output end 211 via a second sleeve 121, thereby driving the second roller 12 to rotate via the main output end 211 of the output shaft 21. The first roller 11 and the intermediate roller 13 are respectively mounted on the secondary output end 212 via a first sleeve 111 and an intermediate sleeve 131, thereby driving the first roller 11 and the intermediate roller 13 to rotate via the secondary output end 212 of the output shaft 21. Thus, when the rotating element 20 operates, it drives the first roller 11, the intermediate roller 13, and the second roller 12 to rotate synchronously, thereby realizing the operation of the roller 10 for construction work. The first sleeve 111 and the intermediate sleeve 131 have the same outer diameter, and the first sleeve 111 and the intermediate sleeve 131 jointly mount a first bearing seat 14. The connecting frame 30 is used to connect the milling head to the milling machine. The connecting frame 30 includes a first connecting plate 31 and a second connecting plate 32, wherein the first connecting plate 31 is located between the first roller 11 and the intermediate roller 13 and is fixedly sleeved on the first bearing seat 14, wherein the second connecting plate 32 is located between the second roller 12 and the intermediate roller 13 and is fixedly sleeved at the end step of the rotating element 20.

[0023] Therefore, the milling head provided in this application can effectively protect the rotating element 20 and extend its service life by setting the rotating element inside the drum 10, whether in operation or not. In addition, since the rotating element 20 is built-in, it no longer occupies extra space, making the milling head easier to store and more flexible in operation, especially suitable for environments with limited construction space.

[0024] In one embodiment, the two ends of the output shaft 21 are provided with irregular structures. Correspondingly, the first sleeve 111, the intermediate sleeve 131 and the second sleeve 121 are respectively provided with irregular holes 101 that cooperate with the irregular structures. This can achieve a tight connection between the output shaft 21 and the first sleeve 111, the intermediate sleeve 131 and the second sleeve 121. In particular, compared with the circular hole structure, this structure has higher connection strength and more reliable operation.

[0025] In one embodiment, the irregular structure is a square structure or a toothed structure, wherein the two ends of the output shaft 21 can be the same irregular structure or different irregular structures, as long as the irregular holes 101 on the first sleeve 111, the intermediate sleeve 131 and the second sleeve 121 can be matched with it.

[0026] In one embodiment, the first roller 11, the intermediate roller 13, and the second roller 12 are respectively provided with connecting plates 15 that connect the first sleeve 111, the intermediate sleeve 131, and the second sleeve 121. Reinforcing ribs 16 are uniformly connected circumferentially on any one or both sides of the connecting plate 15, and the reinforcing ribs 16 are connected to the inner sidewall of the roller 10. Thus, the connection strength between the connecting plate 15 and the corresponding first roller 11, intermediate roller 13, and second roller 12 can be improved by the reinforcing ribs 16, making the overall structure of the milling head more stable.

[0027] In one embodiment, a second bearing seat 17 is fitted on the surface of the second sleeve 121, and the outer ring of the second bearing seat 17 is connected to the second connecting plate 32 by a fastener 18. This allows the second bearing seat 17 to be further stabilized by the second connecting plate 32, making the rotation of the main output end 211 of the output shaft 21 more stable. The fastener can be a fastening screw.

[0028] 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.

[0029] 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. Milling head, characterized in that Includes rollers, rotating elements, and connecting frames; The roller includes a first roller, an intermediate roller, and a second roller that extend coaxially. The rotating element is installed inside the intermediate roller and has an output shaft extending along the axial direction and passing through the rotating element at the central axis position. The output shaft has a main output end and a secondary output end opposite to each other. The second roller is sleeved on the main output end through a second sleeve. The first roller and the intermediate roller are respectively sleeved on the secondary output end through a first sleeve and an intermediate sleeve. The first sleeve and the intermediate sleeve have the same outer diameter, and the first sleeve and the intermediate sleeve are jointly sleeved on a first bearing seat. The connecting frame includes a first connecting plate and a second connecting plate. The first connecting plate is located between the first roller and the intermediate roller and is fixedly sleeved on the first bearing seat. The second connecting plate is located between the second roller and the intermediate roller and is fixedly sleeved at the end step of the rotating element.

2. Milling head according to claim 1, characterized in that The rotating element is a hollow motor.

3. The milling head of claim 1, wherein, The two ends of the output shaft are provided with irregular structures, and the first sleeve, the intermediate sleeve and the second sleeve are respectively provided with irregular holes that cooperate with the irregular structures.

4. The milling head of claim 3, wherein, The irregular structure is either a square structure or a toothed structure.

5. A milling head as claimed in claim 1 or 3, characterized in that The first roller, the intermediate roller, and the second roller are respectively provided with connecting plates that connect the first sleeve, the intermediate sleeve, and the second sleeve. Reinforcing ribs are uniformly connected to any one or both sides of the connecting plate along the circumferential direction. The reinforcing ribs are connected to the inner sidewall of the roller.

6. The milling head as described in claim 1, characterized in that, The surface of the second sleeve is fitted with a second bearing seat, and the outer ring of the second bearing seat is connected to the second connecting plate by fasteners.

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