High strength large circular knife
By setting contact grooves that match the support blocks at the body and cutting edge of the circular cutter, and utilizing the fixing structure of the mounting ring and mounting plate, the structural strength of the large circular cutter is enhanced, solving the problem of easy cutting edge breakage, extending service life and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MAANSHAN SONGLIN SCRAPER SAW CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-16
AI Technical Summary
The existing large circular cutter has low structural strength, and the cutting edge is prone to breakage, which affects its service life and increases maintenance costs.
Contact grooves that match the support blocks are set at the body and cutting edge of the circular cutter, and the structure is strengthened by bolts through mounting rings and mounting plates.
It improves the structural strength of the circular cutter body and cutting edge, prevents breakage, extends service life, and reduces maintenance costs.
Smart Images

Figure CN224360299U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circular knives, and in particular to a high-strength large circular knife. Background Technology
[0002] Large circular knives are cutting tools specifically designed for high-stress and high-requirement cutting tasks. They are mainly used in construction, machining, mining, and other fields. Large circular knives are high-performance tools suitable for challenging and demanding cutting tasks. Their material selection, manufacturing process, working principle, and application areas determine their important position in many industries. By rationally selecting and using high-strength large circular knives, cutting efficiency and tool life can be significantly improved, providing strong support for various industrial production processes. However, existing large circular knives have low structural strength and are prone to breakage at the cutting edge, which greatly affects their service life and increases maintenance costs.
[0003] Therefore, it is necessary to provide a high-strength large circular cutter to solve the above-mentioned technical problems. Utility Model Content
[0004] This invention provides a high-strength large circular knife, which solves the problem.
[0005] To solve the above-mentioned technical problems, this utility model provides a high-strength large circular knife, including a circular knife body, a blade provided on the circular knife body, a mounting ring snapped onto the circular knife body, and a baffle fixed on the mounting ring;
[0006] A support block is fixed on the baffle, and the circular knife body and the blade are both provided with contact grooves that match the support block.
[0007] The mounting ring is fixed with a mounting plate, and the mounting plate is fixed to the circular knife body by bolts.
[0008] Preferably, the circular knife body has a mounting hole at its center, and the inner wall of the mounting hole has a limiting groove.
[0009] Preferably, the circular blade body is provided with an annular groove that matches the mounting ring.
[0010] Preferably, the circular cutter body is provided with a fixing groove adapted to the mounting plate, and the fixing groove is provided with a threaded hole adapted to the bolt.
[0011] Preferably, the mounting plate has an opening.
[0012] Preferably, the number of mounting pieces is four.
[0013] Compared with related technologies, the high-strength large circular knife provided by this utility model has the following beneficial effects:
[0014] This utility model provides a high-strength large circular cutter. By providing contact grooves that match the support blocks on both the cutter body and the cutting edge, the support blocks are tightly attached to the contact grooves, providing structural stress support for the cutter body and the cutting edge. This further improves the structural strength of the cutter body and the cutting edge, preventing the cutting edge from breaking. Existing large circular cutters have low structural strength and are prone to breakage at the cutting edge, which greatly affects the service life of the large circular cutter and increases maintenance costs. Attached Figure Description
[0015] Figure 1 A schematic diagram of a preferred embodiment of a high-strength large circular knife provided by this utility model;
[0016] Figure 2 for Figure 1 The cross-sectional view of the circular knife body shown;
[0017] Figure 3 for Figure 1 The back view of the mounting ring is shown.
[0018] The following are the labels in the diagram: 1. Circular blade body, 2. Blade, 3. Mounting ring, 4. Baffle, 5. Support block, 6. Contact groove, 7. Bolt, 8. Mounting hole, 9. Limiting groove, 10. Ring groove, 11. Fixing groove, 12. Threaded hole, 13. Opening, 14. Mounting piece. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] Please refer to the following: Figure 1-3 As shown, a high-strength large circular knife includes a circular knife body 1, and a blade 2 is provided on the circular knife body 1. A mounting ring 3 is snapped onto the circular knife body 1, and a baffle 4 is fixed on the mounting ring 3.
[0021] The baffle 4 of this utility model is fixed with a support block 5, and both the circular knife body 1 and the blade 2 are provided with contact grooves 6 that are adapted to the support block 5. Since both the circular knife body 1 and the blade 2 are provided with contact grooves 6 that are adapted to the support block 5, the support block 5 is in close contact with the contact groove 6, which provides structural stress support for the circular knife body 1 and the blade 2, further improving the structural strength of the circular knife body 1 and the blade 2, and preventing the blade 2 from breaking.
[0022] The mounting ring 3 of this utility model is fixed with a mounting piece 14, and the mounting piece 14 is fixed to the circular knife body 1 by bolts 7. The mounting piece 14 is tightened by bolts 7, so that the baffle 4 protects the edge of the blade 2.
[0023] The circular cutter body 1 of this utility model has a mounting hole 8 at its center, and a limiting groove 9 is provided on the inner wall of the mounting hole 8. The circular cutter body 1 is mounted on the output shaft of the motor through the mounting hole 8 and the limiting groove 9. The circular cutter body 1 is provided with an annular groove 10 that is adapted to the mounting ring 3.
[0024] The circular knife body 1 of this utility model is provided with a fixing groove 11 that matches the mounting plate 14, and the fixing groove 11 is provided with a threaded hole 12 that matches the bolt 7. The mounting plate 14 is provided with an opening 13, and the number of mounting plates 14 is four.
[0025] The working principle of the high-strength large circular knife provided by this utility model is as follows: In use, the circular knife body 1 is installed on the output shaft of the motor through the mounting hole 8 and the limiting groove 9, and is fixed by the nut. The mounting ring 3 is installed on the ring groove 10 and tightened by the bolt 7 on the mounting plate 14, so that the baffle 4 protects the edge of the blade 2. The circular knife body 1 and the blade 2 are both provided with contact grooves 6 that are adapted to the support block 5, so that the support block 5 is in close contact with the contact groove 6, providing structural stress support for the circular knife body 1 and the blade 2, further improving the structural strength of the circular knife body 1 and the blade 2, and preventing the blade 2 from breaking.
[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A high-strength large circular knife, characterized in that, Includes a circular knife body (1), the circular knife body (1) is provided with a blade (2), the circular knife body (1) is fitted with an installation ring (3), and a baffle (4) is fixed on the installation ring (3); The baffle (4) is fixed with a support block (5), and the circular knife body (1) and the blade (2) are both provided with contact grooves (6) that are compatible with the support block (5); The mounting ring (3) is fixed with a mounting piece (14), and the mounting piece (14) is fixed to the circular knife body (1) by bolts (7).
2. The high-strength large circular knife according to claim 1, characterized in that, The circular knife body (1) has a mounting hole (8) at its center, and the inner wall of the mounting hole (8) is provided with a limiting groove (9).
3. The high-strength large circular knife according to claim 1, characterized in that, The circular knife body (1) is provided with an annular groove (10) that is adapted to the mounting ring (3).
4. A high-strength large circular knife according to claim 1, characterized in that, The circular knife body (1) is provided with a fixing groove (11) that is compatible with the mounting plate (14), and the fixing groove (11) is provided with a threaded hole (12) that is compatible with the bolt (7).
5. A high-strength large circular knife according to claim 1, characterized in that, The mounting plate (14) is provided with an opening (13).
6. A high-strength large circular knife according to claim 1, characterized in that, The number of mounting pieces (14) is four.