Composite sheet for cone-shaped side surface embedded type cutting pick protection body
By splicing upright and inverted irregular composite plates on the embedded cutting tooth protector on the conical side, a specific gap structure is formed, which solves the wear problem of the conical side and improves the service life and connection strength of the cutting teeth.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN CYCLONE NEW MATERIALS TECHNOLOGY CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-05-15
AI Technical Summary
Existing diamond composite sheets with embedded cutting teeth on conical sides are prone to wear on the conical sides due to gaps during use, and cannot effectively protect the steel body.
By combining upright and inverted irregular-shaped composite plates, gaps A and B are formed, ensuring a larger contact area between the cone-shaped side-embedded cutting tooth protector and the steel body. Specific arcs and angles are designed to prevent larger coal or rock blocks from passing through, thus reducing wear.
It effectively reduces wear on the tapered side, increases the service life of the cutting teeth, enhances the brazing connection strength and clamping capacity, prevents chip flow, and extends the service life of the steel body.
Smart Images
Figure CN224244873U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of protective cutting teeth production, and in particular to a composite sheet for protective bodies with tapered side-embedded cutting teeth. Background Technology
[0002] Cutting teeth are specialized tools used for cutting coal seams and rocks underground. They typically consist of a steel body and a tooth tip. The tooth tip is embedded in the top of the steel body and brazed to form a single unit. The size of the top of the steel body matches the size of the tooth tip; the size of the bottom of the steel body matches the size of the installation location of the cutting tooth; the top and bottom of the steel body are different sizes, and the circumferential side of the steel body near the tooth tip is tapered. During cutting, this tapered side is in direct contact with the coal seam and rock, making it prone to severe wear and failure of the top of the steel body. To protect the steel body, existing technologies, such as a novel diameter-maintaining cutting tooth as described in patent CN206091988U, use several conventional diamond composite sheets distributed circumferentially on the tapered side to reduce wear. However, conventional diamond composite sheets are cylindrical in shape. After several diamond composite sheets are embedded in the tapered side, gaps inevitably remain between them. Some medium-sized rock or coal blocks can still slide in the gap, causing wear on the conical side of the gap and premature damage to the conical side. Utility Model Content
[0003] The purpose of this invention is to solve the above problems and provide a composite sheet for a tapered side-embedded cutting tooth protector.
[0004] The technical solution of this utility model is as follows: A composite sheet for a cone-shaped side-embedded cutting tooth protector includes an upright irregular composite sheet and an inverted irregular composite sheet; one upright irregular composite sheet and one inverted irregular composite sheet are spliced together and evenly distributed around the circumference of the cone-shaped side; within the same splicing assembly, a gap is formed between the upright irregular composite sheet and the inverted irregular composite sheet; the outer end faces of both the upright and inverted irregular composite sheets are attached to the cone-shaped side; each splicing assembly is located within an envelope area enclosed by four arc-shaped sides on the cone-shaped side; gaps are formed between adjacent splicing assemblies. Gap B; the envelope region includes the upper arc, lower arc, and side arc; the length of the upper arc is less than the length of the lower arc to ensure a constant width of gap B; both the upper and lower arcs are horizontally positioned to ensure that the upright and inverted irregular-shaped composite plates are set at the same height, thus ensuring that the positions of the upright and inverted irregular-shaped composite plates, as well as gaps A and B, are fixed; all side arcs are of equal length and are equivalent to the same angle of inclination of the conical side surface to ensure that gap B faces the same direction; the cross-sections of the upright and inverted irregular-shaped composite plates are matched to ensure a constant width of gap A. In this way, some larger coal or rock blocks cannot pass through gaps A and B; during cutting by the cutting teeth, the upright and inverted irregular-shaped composite plates participate in the cutting of the rock or coal seam; gaps A and B are prone to blockage, preventing coal or rock debris from passing through them, thereby reducing wear on the conical side surface and increasing its service life.
[0005] Preferably, the inner end faces of both the upright and inverted irregular-shaped composite sheets are flat to facilitate manufacturing; the manufacturing process includes the manufacturing of the upright and inverted irregular-shaped composite sheets and the manufacturing of the corresponding embedded grooves on the steel body.
[0006] Furthermore, the outer end face of the upright irregular-shaped composite sheet is greater than the inner end face of the upright irregular-shaped composite sheet; the outer end face of the inverted irregular-shaped composite sheet is greater than the inner end face of the inverted irregular-shaped composite sheet. In this way, the composite sheet for the tapered side embedded cutting tooth protector has a larger contact area with the steel body, which is beneficial to ensuring the brazing connection strength. In addition, the wall of the embedded groove can retain a certain thickness to ensure the basic clamping ability of the composite sheet for the tapered side embedded cutting tooth protector. Meanwhile, gaps A and B can be reduced to a smaller range, improving the effect of protecting the tapered side.
[0007] Furthermore, both the upright and inverted irregular-shaped composite sheets have rounded corners to facilitate production and processing.
[0008] Furthermore, both the upright and inverted irregular-shaped composite sheets have isosceles triangle cross sections, which facilitates production and processing.
[0009] Furthermore, both the upright and inverted irregular-shaped composite sheets have convex cross-sections; gaps A and B both bend in the middle, effectively blocking the flow of debris, thereby reducing wear on the conical side and improving its service life.
[0010] Furthermore, both the upright and inverted irregular-shaped composite sheets have L-shaped cross-sections; the gap A bends in the middle, thereby effectively blocking the flow of debris, which can reduce the wear of the conical side and improve the service life of the conical side.
[0011] The beneficial effects of this utility model are as follows: The composite sheet for the tapered side-embedded cutting tooth protector of this utility model has the following advantages:
[0012] (1) The upright irregular composite plate and the inverted irregular composite plate of this utility model are embedded and installed on the conical side, leaving gap A and gap B; some larger coal blocks or rock blocks cannot pass through gap A and gap B; when the cutting teeth are cutting, the upright irregular composite plate and the inverted irregular composite plate participate in the cutting of the rock layer or coal layer; gap A and gap B are easy to cause blockage, so that the debris of the coal layer or rock layer cannot pass through gap A and gap B, thereby reducing the wear of the conical side and improving the service life of the conical side;
[0013] (2) Both the upright and inverted irregular composite plates of this utility model are larger on the outside and smaller on the inside. In this way, the composite plate for the cone-shaped side embedded cutting tooth protector has a larger contact area with the steel body, which is beneficial to ensuring the brazing connection strength; and the wall of the embedded groove can retain a certain thickness to ensure the basic clamping ability of the composite plate for the cone-shaped side embedded cutting tooth protector; while the gaps A and B can be reduced to a smaller range to improve the protection effect of the cone-shaped side.
[0014] (3) The cross-sections of the upright irregular composite sheet and the inverted irregular composite sheet of this utility model are both convex; gap A and gap B both bend in the middle, thereby effectively blocking the flow of debris, so as to reduce the wear of the conical side and improve the service life of the conical side.
[0015] (4) The cross-sections of the upright irregular composite sheet and the inverted irregular composite sheet of this utility model are both L-shaped; the gap A bends in the middle, thereby effectively blocking the flow of debris, so as to reduce the wear of the conical side and improve the service life of the conical side. Attached Figure Description
[0016] Figure 1 This is a front view of the composite sheet used in combination with the tapered side-embedded cutting tooth protector in Embodiment 1;
[0017] Figure 2 yes Figure 1 AA section view;
[0018] Figure 3 yes Figure 2 BB section view;
[0019] Figure 4 yes Figure 3 CC section view;
[0020] Figure 5 This is a front view of the composite sheet used in combination with the tapered side-embedded cutting tooth protector in Embodiment 2;
[0021] Figure 6 yes Figure 5 DD sectional view;
[0022] Figure 7 yes Figure 6 EE sectional view;
[0023] Figure 8 yes Figure 7 FF sectional view;
[0024] Figure 9 yes Figure 7 GG cross-sectional view;
[0025] Figure 10 This is a front view of the composite sheet used in combination with the tapered side-embedded cutting tooth protector in Embodiment 3;
[0026] Figure 11 yes Figure 10 HH sectional view;
[0027] Figure 12 yes Figure 11 Sectional view II;
[0028] Figure 13 yes Figure 11 JJ sectional view;
[0029] In the figure: 1. Upright irregular composite sheet, 2. Inverted irregular composite sheet, 3. Enveloping region, 31. Upper arc, 32. Lower arc, 33. Side arc, 4. Rounded corner, 51. Gap A, 52. Gap B. Detailed Implementation
[0030] Example 1: See Figure 1-4A composite sheet for a cone-shaped side-embedded cutting tooth protector includes an upright irregular composite sheet 1 and an inverted irregular composite sheet 2; an upright irregular composite sheet 1 and an inverted irregular composite sheet 2 are spliced together and evenly distributed around the circumference of the cone-shaped side; within the same splicing assembly, a gap A 51 is formed between the upright irregular composite sheet 1 and the inverted irregular composite sheet 2; the outer end faces of both the upright irregular composite sheet 1 and the inverted irregular composite sheet 2 are attached to the cone-shaped side; each splicing assembly is located within an envelope area 3 enclosed by four arc-shaped sides on the cone-shaped side; a gap B 52 is formed between adjacent splicing assemblies; the envelope area 3 includes an upper arc 31. The lower arc 32 and the side arc 33; the length of the upper arc 31 is less than the length of the lower arc 32 to ensure that the width of the gap 52 is constant; the upper arc 31 and the lower arc 32 are both set horizontally to ensure that the upright irregular composite sheet 1 and the inverted irregular composite sheet 2 are set at the same height to ensure that the positions of the upright irregular composite sheet 1, the inverted irregular composite sheet 2, the gap 51, and the gap 52 are fixed; all the side arcs 33 are of equal length and are equivalent to the same angle of inclination of the conical side to ensure that the gap 52 faces the same direction; the cross-sections of the upright irregular composite sheet 1 and the inverted irregular composite sheet 2 are matched to ensure that the width of the gap 51 is constant. In this way, some larger coal or rock blocks cannot pass through gaps A 51 and B 52; during the cutting of the cutting teeth, the upright irregular composite piece 1 and the inverted irregular composite piece 2 participate in the cutting of the rock or coal seam; gaps A 51 and B 52 are prone to blockage, preventing coal or rock debris from passing through gaps A 51 and B 52, thereby reducing the wear of the conical side and improving the service life of the conical side.
[0031] Compared with the prior art, this utility model embeds the upright irregular-shaped composite piece 1 and the inverted irregular-shaped composite piece 2 into the conical side surface, leaving gaps A 51 and B 52. Some larger coal blocks or rock blocks cannot pass through gaps A 51 and B 52. When the cutting teeth are cutting, the upright irregular-shaped composite piece 1 and the inverted irregular-shaped composite piece 2 participate in the cutting of the rock or coal seam. Gap A 51 and gap B 52 are prone to blockage, preventing coal or rock debris from passing through gaps A 51 and B 52, thereby reducing the wear of the conical side surface and improving the service life of the conical side surface.
[0032] The inner end faces of both the upright irregular composite sheet 1 and the inverted irregular composite sheet 2 are flat to facilitate production and processing; the production and processing includes the production and processing of the upright irregular composite sheet 1 and the inverted irregular composite sheet 2 as well as the production and processing of the corresponding embedded grooves on the steel body.
[0033] The outer end face of the upright irregular composite sheet 1 is greater than the inner end face of the upright irregular composite sheet 1; the outer end face of the inverted irregular composite sheet 2 is greater than the inner end face of the inverted irregular composite sheet 2; in this way, the composite sheet for the cone-shaped side embedded cutting tooth protector has a larger contact area with the steel body, which is beneficial to ensuring the brazing connection strength; and the wall of the embedded groove can retain a certain thickness to ensure the basic clamping ability of the composite sheet for the cone-shaped side embedded cutting tooth protector; while the gaps A 51 and B 52 can be reduced to a smaller range to improve the protection effect of the cone-shaped side.
[0034] Both the upright irregular-shaped composite sheet 1 and the inverted irregular-shaped composite sheet 2 have rounded corners 4 at their corners to facilitate production and processing.
[0035] Both the upright irregular-shaped composite sheet 1 and the inverted irregular-shaped composite sheet 2 have isosceles triangle cross sections, which facilitates production and processing.
[0036] The working principle of this embodiment is as follows: Some larger coal or rock blocks cannot pass through gaps A 51 and B 52. During cutting, the upright irregular-shaped composite piece 1 and the inverted irregular-shaped composite piece 2 participate in the cutting of the rock or coal seam. Gap A 51 and B 52 are prone to blockage, preventing coal or rock debris from passing through them, thereby reducing wear on the conical side and increasing its service life. The inner end faces of both the upright irregular-shaped composite piece 1 and the inverted irregular-shaped composite piece 2 are flat to facilitate manufacturing. This manufacturing includes the manufacturing of both the upright and inverted irregular-shaped composite pieces 1 and 2, as well as the manufacturing of the corresponding embedded grooves on the steel body. Both the upright and inverted irregular-shaped composite pieces 1 and 2 are larger on the outside and smaller on the inside. In this way, the composite sheet for the tapered side embedded cutting tooth protector has a larger contact area with the steel body, which is beneficial to ensuring the strength of the brazing connection; and the wall of the embedded groove can retain a certain thickness to ensure the basic clamping ability of the composite sheet for the tapered side embedded cutting tooth protector; while the gaps A 51 and B 52 can be reduced to a smaller range to improve the protection effect of the tapered side.
[0037] Example 2: See Figure 5-9 Example 2 is basically the same as Example 1, and the similarities will not be repeated. The difference is that the cross-sections of the upright irregular composite sheet 1 and the inverted irregular composite sheet 2 are both convex; the gaps A 51 and B 52 both bend in the middle, thereby effectively blocking the flow of debris, so as to reduce the wear of the conical side and improve the service life of the conical side.
[0038] Example 3: See Figure 10-13 Example 3 is basically the same as Example 1, and the similarities will not be repeated. The difference is that the cross-sections of the upright irregular composite sheet 1 and the inverted irregular composite sheet 2 are both L-shaped; the gap A 51 bends in the middle, thereby effectively blocking the flow of debris, so as to reduce the wear of the conical side and improve the service life of the conical side.
Claims
1. A composite sheet for a tapered side-embedded cutting tooth protector, characterized in that, It includes upright and inverted irregular-shaped composite sheets; one upright and one inverted irregular-shaped composite sheet are spliced together and evenly distributed around the circumference of the conical side surface; within the same splicing assembly, a gap A is formed between the upright and inverted irregular-shaped composite sheets; the outer end faces of both the upright and inverted irregular-shaped composite sheets are attached to the conical side surface; each splicing assembly is located within an envelope area enclosed by four arc-shaped sides on the conical side surface; a gap B is formed between adjacent splicing assemblies; the envelope area includes an upper arc, a lower arc, and side arcs; the length of the upper arc is less than the length of the lower arc; both the upper and lower arcs are horizontally set; all side arcs are of equal length and are equivalent to the same angle of inclination of the conical side surface; the cross-sections of the upright and inverted irregular-shaped composite sheets are matched.
2. The composite sheet for a tapered side-embedded cutting tooth protector according to claim 1, characterized in that: Both the upright and inverted irregular-shaped composite sheets have flat inner end faces.
3. The composite sheet for a tapered side-embedded cutting tooth protector according to claim 2, characterized in that: The outer end face of the upright irregular-shaped composite sheet is greater than the inner end face of the upright irregular-shaped composite sheet; the outer end face of the inverted irregular-shaped composite sheet is greater than the inner end face of the inverted irregular-shaped composite sheet.
4. The composite sheet for a tapered side-embedded cutting tooth protector according to claim 1 or 3, characterized in that: Both upright and inverted irregular-shaped composite sheets have rounded corners.
5. The composite sheet for a tapered side-embedded cutting tooth protector according to claim 4, characterized in that: Both the upright and inverted irregular-shaped composite sheets have isosceles triangle cross sections.
6. The composite sheet for a tapered side-embedded cutting tooth protector according to claim 4, characterized in that: Both the upright and inverted irregular-shaped composite sheets have convex cross-sections.
7. The composite sheet for a tapered side-embedded cutting tooth protector according to claim 4, characterized in that: Both the upright and inverted irregular-shaped composite sheets have L-shaped cross sections.