Disc cutter
By introducing a telescopic mechanism and mounting structure into the disc hob, the main cutter head can be quickly extended and retracted, solving the problem of damage to the disc hob when it is left unattended for a long time, extending its service life and simplifying the maintenance process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU SHANGGONG BLADE CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-04-21
AI Technical Summary
Existing disc cutters are susceptible to damage from impacts and corrosion when left unused for extended periods, which affects their service life.
A telescopic mechanism comprising a frame-type mounting shell, a lifting guide rail, a bidirectional motor, a vertical lead screw, a lifting slider, and a horizontal mounting base is designed for the extension and retraction of the main cutter head. Combined with the mounting structure of the mounting plate, fixed shaft, bolts, and U-shaped fixing bracket, the mechanism enables the main cutter head to extend and retract quickly, preventing damage.
It effectively prevents disc cutters from being scratched and corroded when not in use, extending their service life. It also has a stable structure, is easy to disassemble and assemble, and is convenient for maintenance.
Smart Images

Figure CN224143622U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of disc hobbing technology, and in particular to a disc hobbing tool. Background Technology
[0002] After being taken out of use, existing disc cutters are left in the external environment for a long time, which makes them susceptible to damage from impacts, scratches, and corrosion, thus affecting their service life.
[0003] Chinese patent discloses a "disc-shaped roller cutter" (application number CN201921091264.7), comprising a roller cutting edge, a cutter body, a bearing, a central shaft, a connecting block, a hydraulic telescopic rod, and a mounting block. The roller cutting edge is rigidly mounted on the outer wall of the cutter body and evenly distributed. The outer wall of the bearing is rigidly connected to the inner wall of the cutter body, and the inner wall of the bearing is rigidly connected to the outer wall of the central shaft. The connecting block is rigidly mounted at both ends of the central shaft and rigidly connected to the first end of the hydraulic telescopic rod. The mounting block is rigidly connected to the end of the hydraulic telescopic rod. This utility model design uses a hydraulic telescopic rod to enable the roller cutter to continuously impact and feed when cutting rock strata, improving rock breaking efficiency and reducing drilling costs. However, this disc-shaped roller cutter is prone to damage when placed in an external environment for extended periods, which affects its service life. Utility Model Content
[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a disc hob. The disc hob is constructed using a telescopic mechanism consisting of a frame-type mounting shell, a lifting guide rail, a bidirectional motor, a vertical lead screw, a lifting slider, a horizontal mounting base, and a main cutter disc. This mechanism allows for the extension and retraction of the main cutter disc. During use, the main cutter disc can be quickly extended from inside the frame-type mounting shell to the outside. After use, the main cutter disc can be quickly retracted from the outside of the frame-type mounting shell back inside, preventing scratches and corrosion damage caused by prolonged exposure to the outside, thus further extending the service life of the disc hob. The mounting structure, composed of a mounting plate, a fixed shaft, bolts, the main cutter disc, and a U-shaped fixing frame, is stable and robust, and easy to assemble and disassemble, facilitating the replacement and maintenance of the disc hob.
[0005] This utility model also provides a disc-shaped hob, comprising: a frame-shaped mounting shell, wherein lifting guide rails are fixedly connected to the inner walls of both sides of the frame-shaped mounting shell, a bidirectional motor is fixedly connected inside the lifting guide rails, the bidirectional motor is located at the upper end of the lifting guide rails, a vertical lead screw is fixedly connected to the output end of the bidirectional motor, the vertical lead screw is located inside the lifting guide rails, and a lifting slider is threadedly connected to the vertical lead screw; a horizontal mounting base, the horizontal mounting base is fixedly connected to the lifting slider, a U-shaped fixing frame is fixedly connected to the lower surface of the horizontal mounting base, a drive motor is fixedly connected to the left side surface of the U-shaped fixing frame, a first mounting plate is fixedly connected to the output end of the drive motor through a drive shaft, a main cutter disc is fixedly connected to the first mounting plate through a first bolt, and the main cutter disc is located inside the U-shaped fixing frame.
[0006] According to the present invention, a disc-shaped hob cutter has a mounting plate fixedly connected to the upper surface of the frame-shaped mounting shell. The mounting plate is provided with mounting holes, which are located at the four corners of the mounting plate. This facilitates installation and fixation.
[0007] According to the present invention, in a disc-shaped cutting tool, the upper end of the lifting guide rail is fixedly connected to the upper inner wall of the frame-shaped mounting shell, making the structure stable and firm. Vertical grooves are provided on both the left and right inner walls of the lifting guide rail, facilitating the limiting installation of the lifting slider.
[0008] According to the disc-shaped hob of this utility model, vertical sliding rods are fixedly connected to both the left and right surfaces of the lifting slider, and the lifting slider is slidably connected to a vertical sliding groove through the vertical sliding rods. This facilitates the stable lifting and lowering of the lifting slider.
[0009] According to the present invention, a disc-shaped hob cutter has a left limiting plate fixedly connected to the left inner wall of the frame-shaped mounting shell, and a right limiting plate fixedly connected to the right inner wall of the frame-shaped mounting shell. This facilitates the limiting of the U-shaped fixing frame and improves the stability of the structure.
[0010] According to the present invention, in a disc-shaped cutting tool, the upper surface of the left limiting plate abuts against the lower end of the lifting guide rail, and the left limiting plate is provided with a left rectangular channel groove; the upper surface of the right limiting plate abuts against the lower end of the lifting guide rail, and the right limiting plate is provided with a right rectangular channel groove. This facilitates the limiting of the U-shaped fixing frame and improves the stability of the structure.
[0011] According to the present invention, in a disc-shaped hob, a second mounting plate is fixedly connected to the side of the main cutter disc away from the first mounting plate by a second bolt. This facilitates the replacement of the main cutter disc.
[0012] According to the present invention, a disc-shaped hob has a fixed shaft fixedly connected to the outer surface of the second mounting disc, and the fixed shaft is sleeved with a U-shaped fixing bracket. This facilitates the replacement of the main cutter disc.
[0013] Beneficial effects:
[0014] 1. Compared with the prior art, this disc hob has a telescopic mechanism composed of a frame-type mounting shell, a lifting guide rail, a bidirectional motor, a vertical lead screw, a lifting slider, a horizontal mounting base, and a main cutter disc. The main cutter disc can be extended and retracted. During use, the main cutter disc can be quickly extended from the inside of the frame-type mounting shell to the outside of the frame-type mounting shell. After use, the main cutter disc can be quickly retracted from the outside of the frame-type mounting shell to the inside of the frame-type mounting shell, preventing the disc hob from being scratched and corroded due to prolonged exposure to the outside, thus further extending the service life of the disc hob.
[0015] 2. Compared with the existing technology, this disc hob has an installation structure composed of a mounting disc, a fixed shaft, bolts, a main cutter disc, and a U-shaped fixing frame. The structure is stable and firm, and easy to disassemble and assemble, which is beneficial for the replacement and maintenance of the disc hob. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0017] Figure 1 This is a schematic diagram of the transverse three-dimensional cross-sectional structure of a disc-shaped hob according to the present invention;
[0018] Figure 2 This is a schematic diagram of the structure of a disc hob with the main cutter disc in an extended state according to this utility model;
[0019] Figure 3 This is a schematic diagram of the structure of a disc hob with the main cutter head in the retracted state.
[0020] Figure 4 This is a schematic diagram of the transverse cross-sectional structure of a disc hob according to the present invention.
[0021] Legend:
[0022] 1. Frame-type mounting shell; 2. Mounting plate; 3. Right limiting plate; 4. Right rectangular channel groove; 5. Main cutter head; 6. First mounting plate; 7. U-shaped fixing bracket; 8. Drive motor; 9. Left rectangular channel groove; 10. Left limiting plate; 11. Second mounting plate; 12. First bolt; 13. Second bolt; 14. Drive shaft; 15. Fixed shaft; 16. Bidirectional motor; 17. Vertical lead screw; 18. Lifting slider; 19. Vertical slide groove; 20. Vertical slide rod; 21. Horizontal mounting base; 22. Lifting guide rail; 23. Mounting hole. Detailed Implementation
[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0024] Reference Figure 1 , Figure 2 and Figure 3 This utility model discloses a disc-shaped hobbing cutter, comprising a frame-shaped mounting shell 1. A mounting plate 2 is fixedly connected to the upper surface of the frame-shaped mounting shell 1. The mounting plate 2 has mounting holes 23 located at its four corners. A left limiting plate 10 is fixedly connected to the left inner wall of the frame-shaped mounting shell 1, and a right limiting plate 3 is fixedly connected to the right inner wall of the frame-shaped mounting shell 1. The upper surface of the left limiting plate 10 abuts against the lower end of a lifting guide rail 22, and the left limiting plate 10 has a left rectangular channel groove 9. The upper surface of the right limiting plate 3 abuts against the lower end of the lifting guide rail 22, and the right limiting plate 3 has a right rectangular channel groove 4. The left and right sides of the frame-shaped mounting shell 1... Lifting guide rails 22 are fixedly connected to the inner walls of the sides. The upper end of the lifting guide rails 22 is fixedly connected to the upper inner wall of the frame-type mounting shell 1. Vertical sliding grooves 19 are provided on the left and right inner walls of the lifting guide rails 22. A bidirectional motor 16 is fixedly connected inside the lifting guide rails 22. The bidirectional motor 16 is located at the upper end of the lifting guide rails 22. A vertical lead screw 17 is fixedly connected to the output end of the bidirectional motor 16. The vertical lead screw 17 is located inside the lifting guide rails 22. A lifting slider 18 is threadedly connected to the vertical lead screw 17. Vertical sliding rods 20 are fixedly connected to the left and right surfaces of the lifting slider 18. The lifting slider 18 is slidably connected to the vertical sliding grooves 19 through the vertical sliding rods 20.
[0025] Specifically, before using the disc hob, the main cutter disc 5 needs to be extended from inside the frame-type mounting housing 1. During the process of the main cutter disc 5 extending from the inside to the outside of the frame-type mounting housing 1, the bidirectional motor 16 of the lifting guide rail 22 will drive the vertical lead screw 17 to rotate in the forward direction. The vertical lead screw 17 will drive the lifting slider 18 to move downward, and the lifting slider 18 will drive the horizontal mounting base 21 to move downward, thereby driving the main cutter disc 5 to move downward, so that the main cutter disc 5 extends from the inside to the outside of the frame-type mounting housing 1. After the disc cutter is no longer in use, the main cutter disc 5 needs to be retracted into the frame-type mounting housing 1. During the process of the main cutter disc 5 being retracted from the outside of the frame-type mounting housing 1 to the inside of the frame-type mounting housing 1, the bidirectional motor 16 of the lifting guide rail 22 will drive the vertical lead screw 17 to rotate in the opposite direction. The vertical lead screw 17 will drive the lifting slider 18 to move upward. The lifting slider 18 will drive the horizontal mounting base 21 to move upward, which in turn will drive the main cutter disc 5 to move upward, so that the main cutter disc 5 is retracted from the outside of the frame-type mounting housing 1 to the inside of the frame-type mounting housing 1.
[0026] Reference Figure 2 , Figure 3 and Figure 4 A horizontal mounting base 21 is fixedly connected to a lifting slider 18. A U-shaped fixing frame 7 is fixedly connected to the lower surface of the horizontal mounting base 21. A drive motor 8 is fixedly connected to the left side surface of the U-shaped fixing frame 7. A first mounting plate 6 is fixedly connected to the output end of the drive motor 8 through a drive shaft 14. A main cutter plate 5 is fixedly connected to the first mounting plate 6 through a first bolt 12. The main cutter plate 5 is located inside the U-shaped fixing frame 7. A second mounting plate 11 is fixedly connected to the side of the main cutter plate 5 away from the first mounting plate 6 through a second bolt 13. A fixing shaft 15 is fixedly connected to the outer surface of the second mounting plate 11. The fixing shaft 15 is sleeved with the U-shaped fixing frame 7.
[0027] Specifically, after the main cutter head 5 extends from the inside of the frame-shaped mounting shell 1 to the outside of the frame-shaped mounting shell 1, the drive motor 8 will drive the first mounting plate 6 to rotate at high speed through the drive shaft 14, and the first mounting plate 6 will drive the main cutter head 5 to rotate at high speed within the U-shaped fixing frame 7.
[0028] Working principle: Before using the disc cutter, the lifting guide rail 22 will extend the main cutter disc 5 from the inside of the frame-shaped mounting shell 1 to the outside of the frame-shaped mounting shell 1. The drive motor 8 will drive the first mounting plate 6 to rotate at high speed through the drive shaft 14. The first mounting plate 6 will drive the main cutter disc 5 to rotate at high speed in the U-shaped fixing frame 7. After stopping use, the lifting guide rail 22 will retract the main cutter disc 5 from the outside of the frame-shaped mounting shell 1 back to the inside of the frame-shaped mounting shell 1.
[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A disc-shaped hob, characterized in that include: A frame-type mounting shell (1) is provided. Lifting guide rails (22) are fixedly connected to the inner walls of the left and right sides of the frame-type mounting shell (1). A bidirectional motor (16) is fixedly connected inside the lifting guide rail (22). The bidirectional motor (16) is located at the upper end of the lifting guide rail (22). A vertical lead screw (17) is fixedly connected to the output end of the bidirectional motor (16). The vertical lead screw (17) is located inside the lifting guide rail (22). A lifting slider (18) is threadedly connected to the vertical lead screw (17). A horizontal mounting base (21) is fixedly connected to a lifting slider (18). A U-shaped fixing frame (7) is fixedly connected to the lower surface of the horizontal mounting base (21). A drive motor (8) is fixedly connected to the left side surface of the U-shaped fixing frame (7). The output end of the drive motor (8) is fixedly connected to a first mounting plate (6) via a drive shaft (14). The first mounting plate (6) is fixedly connected to a main cutter disc (5) via a first bolt (12). The main cutter disc (5) is located inside the U-shaped fixing frame (7).
2. A disc cutter according to Claim 1 wherein, The upper surface of the frame-type mounting shell (1) is fixedly connected to a mounting plate (2), and the mounting plate (2) is provided with mounting holes (23), which are located at the four corners of the mounting plate (2).
3. A disc cutter according to Claim 1 wherein, The upper end of the lifting guide rail (22) is fixedly connected to the upper inner wall of the frame mounting shell (1), and vertical sliding grooves (19) are provided on the left and right inner walls of the lifting guide rail (22).
4. A disc cutter according to Claim 1 wherein, The left and right sides of the lifting slider (18) are fixedly connected with vertical slide rods (20), and the lifting slider (18) is slidably connected to the vertical slide groove (19) through the vertical slide rods (20).
5. A disc cutter according to Claim 1 wherein, A left limiting plate (10) is fixedly connected to the left inner wall of the frame-type mounting shell (1), and a right limiting plate (3) is fixedly connected to the right inner wall of the frame-type mounting shell (1).
6. A disc cutter according to Claim 5 wherein, The upper surface of the left limiting plate (10) abuts against the lower end of the lifting guide rail (22), and the left limiting plate (10) is provided with a left rectangular channel groove (9). The upper surface of the right limiting plate (3) abuts against the lower end of the lifting guide rail (22), and the right limiting plate (3) is provided with a right rectangular channel groove (4).
7. A disc cutter according to Claim 1 wherein, The side of the main blade disc (5) away from the first mounting disc (6) is fixedly connected to the second mounting disc (11) by the second bolt (13).
8. A disc cutter according to Claim 7 wherein, The outer surface of the second mounting plate (11) is fixedly connected to a fixed shaft (15), which is sleeved with a U-shaped fixing bracket (7).
Citation Information
Patent Citations
Disc-shaped hob
CN210239670U