Pick base body with neck surrounding bucket-shaped groove

By incorporating a funnel-shaped groove and partition ribs at the neck of the cutting tooth matrix, the problems of cutting tooth matrix wear and diamond composite sheet detachment are solved, achieving effective protection of the cutting tooth matrix.

CN224244807UActive Publication Date: 2026-05-15HENAN CYCLONE NEW MATERIALS TECHNOLOGY CO LTD
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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

Technical Problem

The existing cutting tooth matrix suffers severe neck wear, causing the diamond composite sheet to detach, making it difficult to effectively protect the cutting tooth matrix, and the area where the cutting debris is not covered cannot be effectively protected.

Method used

The neck of the cutting tooth matrix is ​​surrounded by two funnel-shaped grooves, A and B, which are separated by partition ribs and cover most of the area. They are then brazed using irregularly shaped diamond composite sheets. Cutting debris flows along the partition ribs and protects the matrix when blocked.

Benefits of technology

It effectively covers most of the neck area of ​​the cutting tooth matrix, enhances the clamping force and brazing connection strength of the diamond composite sheet, prevents detachment, reduces wear, and improves the protective effect.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224244807U_ABST
    Figure CN224244807U_ABST
Patent Text Reader

Abstract

The utility model relates to a cutting pick base body with a neck surrounding a bucket-shaped groove. A plurality of bucket-shaped grooves A and a plurality of bucket-shaped grooves B are uniformly distributed around the neck part of the cutting pick base body; the neck part of the cutting pick base body is also provided with a separation rib; the adjacent bucket-shaped groove A and bucket-shaped groove B are separated by a separation rib; the sections of the adjacent bucket-shaped grooves A and the bucket-shaped grooves B are correspondingly arranged in a one-to-one correspondence manner and are spliced into a quadrangle; the upper edge and the lower edge of the quadrangle are horizontally arranged; the two side edges of the quadrangle are equal in length and incline by the same angle relative to the axis of the cutting pick base body. The bucket-shaped groove A and the bucket-shaped groove B cover most of the area of the neck of the cutting pick base body and are used for installing corresponding special-shaped diamond compacts in a brazing mode, and abrasion of cutting chippings can be resisted; the cutting chips flow along the separation ribs; and when the granularity of the cutting chips is larger than the exposed width of the separation ribs, the blocking condition occurs, so that the cutting chips do not flow along the separation ribs any more, and the effect of protecting the neck of the cutting pick base body is achieved.
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Description

Technical Field

[0001] This utility model relates to the technical field of cutting tooth manufacturing, and in particular to a cutting tooth base with a funnel-shaped groove around the neck. Background Technology

[0002] The cutting tooth base is a crucial part of the cutting tooth, connecting the cutting tooth head and the cutting tooth holder. The cutting tooth head is fixedly connected to the top of the cutting tooth base. During cutting, the neck of the cutting tooth base also experiences wear. When the neck of the cutting tooth base wears to a certain extent, the cutting tooth head can easily detach from the cutting tooth base, causing the cutting tooth to fail. To protect the neck of the cutting tooth base, existing technologies use diamond composite sheets for gauge protection, such as the novel gauge-protecting cutting tooth described in patent CN206091988U. Because conventional diamond composite sheets are usually cylindrical or disc-shaped, circular holes are typically provided on the side of the cutting tooth base neck to accommodate the gauge-protecting diamond composite sheet. However, these circular holes cannot cover a large area of ​​the cutting tooth base neck, meaning the area between the circular holes will still be subject to wear from cutting debris; when the neck of the cutting tooth base wears to a certain extent, the gauge-protecting diamond composite sheet will detach, failing to provide its intended gauge-protecting effect. Utility Model Content

[0003] The purpose of this invention is to solve the above problems and provide a cutting tooth base with a funnel-shaped groove around the neck.

[0004] The technical solution of this utility model is as follows: A cutting tooth base with a neck surrounded by funnel-shaped grooves has several funnel-shaped grooves A and several funnel-shaped grooves B evenly distributed around the neck; the neck of the cutting tooth base is also provided with a partition rib; adjacent funnel-shaped grooves A and B are separated by the partition rib; the cross sections of adjacent funnel-shaped grooves A and B are arranged in opposite directions and are pieced together to form a quadrilateral; when the funnel-shaped grooves A and B are evenly distributed around the neck of the cutting tooth base, they can cover most of the neck area of ​​the cutting tooth base; the area of ​​the neck of the cutting tooth base not covered by funnel-shaped grooves A and B is the area where the partition rib is located; the funnel-shaped grooves... A and B funnel-shaped grooves are used for brazing and installing corresponding irregularly shaped diamond composite sheets, which can withstand the wear of cutting chips; the upper and lower sides of the quadrilateral are both horizontally set; funnel A, funnel B, and the partition ribs are at the same height; the two sides of the quadrilateral are of equal length and are inclined at the same angle relative to the axis of the cutting tooth base, so that the orientation of the partition ribs is consistent; cutting chips flow along the partition ribs; when the particle size of the cutting chips is greater than the exposed width of the partition ribs, blockage will occur, preventing the cutting chips from flowing along the partition ribs, thereby protecting the neck of the cutting tooth base.

[0005] Preferably, the top of the cutting tooth base with the neck surrounding the funnel-shaped groove is provided with a mounting groove that corresponds to and matches the cutting tooth head for mounting the cutting tooth head.

[0006] Preferably, both the funnel-shaped grooves A and B are wider on the outside and narrower on the inside, making the thickness of the dividing ribs increase towards the inside. This increases the brazing contact area between the irregularly shaped composite piece and the funnel-shaped grooves A and B, ensuring the strength of the brazing connection. The funnel-shaped grooves A and B have a stronger clamping force on the irregularly shaped composite piece, preventing it from falling off. The width of the dividing ribs exposed on the outer end face can be limited to a smaller size, which not only limits the size of the cutting debris sliding along the dividing ribs and reduces wear on the neck of the cutting tooth base, but also makes it easier for cutting debris to clog, improving the protection of the neck of the cutting tooth base.

[0007] Preferably, the bottoms of both the bucket-shaped trough A and the bucket-shaped trough B are flat, which is beneficial for production and processing.

[0008] Preferably, both the corners of the funnel-shaped groove A and the funnel-shaped groove B are provided with inner rounded corners to facilitate the installation of the irregularly shaped composite sheet.

[0009] Preferably, a coaxial annular baffle is provided in the middle of the cutting tooth base to prevent cutting debris from reaching the bottom of the cutting tooth base and to ensure stable installation of the cutting tooth and the cutting tooth holder.

[0010] Furthermore, an arc transition section is provided between the neck and the middle of the cutting tooth base to avoid structural stress concentration in the cutting tooth base and ensure that the cutting tooth base functions stably.

[0011] Preferably, the bottom end of the cutting tooth base is provided with a retaining spring groove, which can cooperate with the shaft retainer to install the cutting tooth and the cutting tooth seat.

[0012] Preferably, the cross-sections of the bucket-shaped groove A and bucket-shaped groove B are triangular to facilitate processing and production.

[0013] Preferably, the cross-sections of the funnel-shaped groove A and funnel-shaped groove B are convex; the dividing ribs have a bend in the middle, making it easier for cutting debris to clog, thereby protecting the neck of the cutting tooth matrix.

[0014] Preferably, the cross-sections of the funnel-shaped groove A and funnel-shaped groove B are L-shaped; some of the dividing ribs have a bend in the middle, which makes it easier for cutting debris to clog, thereby protecting the neck of the cutting tooth base.

[0015] The beneficial effects of this utility model are as follows: The cutting tooth base with a funnel-shaped groove around the neck of this utility model has the following advantages:

[0016] (1) The funnel-shaped groove A and funnel-shaped groove B of this utility model cover most of the neck area of ​​the cutting tooth base; the neck area of ​​the cutting tooth base not covered by funnel-shaped groove A and funnel-shaped groove B is the area where the partition rib is located; funnel-shaped groove A and funnel-shaped groove B are used to braze and install the corresponding irregular diamond composite sheet, which can withstand the wear of cutting chips; cutting chips flow along the partition rib; when the particle size of the cutting chips is greater than the exposed width of the partition rib, a blockage will occur, so that the cutting chips no longer flow along the partition rib, thereby protecting the neck of the cutting tooth base;

[0017] (2) In this utility model, both the outer and inner sides of the funnel-shaped groove A and B are larger, making the thickness of the dividing ribs increase as they move inward, thereby increasing the brazing contact area between the irregular composite sheet and the funnel-shaped groove A and B, and ensuring the brazing connection strength. The funnel-shaped groove A and B have a stronger clamping force on the irregular composite sheet, preventing it from falling off; the width of the dividing ribs exposed on the outer end face can be limited to a smaller size, which not only limits the size of the cutting chips that slide down along the dividing ribs and reduces the wear of the cutting tooth base neck, but also makes the cutting chips easier to clog, thus improving the protection of the cutting tooth base neck. Attached Figure Description

[0018] Figure 1 This is a front view of the cutting tooth base with the neck surrounding the funnel-shaped groove in Embodiment 1;

[0019] Figure 2 yes Figure 1 AA section view;

[0020] Figure 3 yes Figure 1 BB cross-sectional view;

[0021] Figure 4 This is a front view of the cutting tooth base with the neck surrounding the funnel-shaped groove in Embodiment 2;

[0022] Figure 5 yes Figure 4 CC section view;

[0023] Figure 6 yes Figure 4 DD sectional view;

[0024] Figure 7 This is a front view of the cutting tooth base with the neck surrounding the funnel-shaped groove in Embodiment 3;

[0025] Figure 8 yes Figure 7 EE sectional view;

[0026] Figure 9 yes Figure 7 FF sectional view;

[0027] In the diagram: 1. Bucket-shaped groove A, 2. Bucket-shaped groove B, 3. Quadrilateral, 31. Top side, 32. Bottom side, 33. Side side, 4. Separating rib, 5. Inner rounded corner, 6. Annular baffle, 7. Arc transition section, 8. Snap ring groove, 9. Installation chamfer, 10. Installation groove. Detailed Implementation

[0028] Example 1: See Figure 1-3 A cutting tooth base with a neck surrounded by funnel-shaped grooves has several funnel-shaped grooves A1 and several funnel-shaped grooves B2 evenly distributed around the neck; the neck of the cutting tooth base is also provided with a partition rib 4; adjacent funnel-shaped grooves A1 and B2 are separated by the partition rib 4; adjacent funnel-shaped grooves A1 and B2 have opposite cross-sections and are arranged to form a quadrilateral 3; when the funnel-shaped grooves A1 and B2 are evenly distributed around the neck of the cutting tooth base, they can cover most of the neck area of ​​the cutting tooth base; the area of ​​the neck of the cutting tooth base not covered by the funnel-shaped grooves A1 and B2 is the area where the partition rib 4 is located; funnel-shaped grooves A1 and B2... 2 is used for brazing and installing corresponding irregular diamond composite sheets, which can withstand the wear of cutting chips; the upper side 31 and the lower side 32 of the quadrilateral 3 are both horizontally set; the funnel-shaped groove A 1, the funnel-shaped groove B 2, and the partition rib 4 are at the same height; the two sides 33 of the quadrilateral 3 are of equal length and are inclined at the same angle relative to the axis of the cutting tooth base, so that the orientation of the partition rib 4 is consistent; the cutting chips flow along the partition rib 4; when the particle size of the cutting chips is greater than the exposed width of the partition rib 4, a blockage will occur, so that the cutting chips no longer flow along the partition rib 4, thereby protecting the neck of the cutting tooth base.

[0029] Compared with the prior art, this utility model covers most of the neck area of ​​the cutting tooth base by means of the funnel-shaped grooves A1 and B2 surrounding the neck of the cutting tooth base; the area of ​​the neck of the cutting tooth base not covered by the funnel-shaped grooves A1 and B2 is the area where the partition rib 4 is located; the funnel-shaped grooves A1 and B2 are used to braze and install the corresponding irregular diamond composite sheet, which can withstand the wear of cutting chips; the cutting chips flow along the partition rib 4; when the particle size of the cutting chips is greater than the exposed width of the partition rib 4, a blockage will occur, so that the cutting chips no longer flow along the partition rib 4, thereby protecting the neck of the cutting tooth base.

[0030] The bottom end of the cutting tooth base is provided with a chamfer 9 to facilitate the installation of the cutting tooth.

[0031] The top of the cutting tooth base, which is surrounded by a funnel-shaped groove around the neck, is provided with a mounting groove 10 that matches the cutting tooth head for mounting the cutting tooth head.

[0032] Both the funnel-shaped grooves A1 and B2 are wider on the outside and narrower on the inside, making the thickness of the partition rib 4 increase as it extends inward. This increases the brazing contact area between the irregularly shaped composite sheet and the funnel-shaped grooves A1 and B2, ensuring the strength of the brazing connection. The funnel-shaped grooves A1 and B2 have a stronger clamping force on the irregularly shaped composite sheet, preventing it from falling off. The width of the partition rib 4 exposed on its outer end face can be limited to a smaller size, which not only limits the size of the cutting debris sliding down the partition rib 4, reducing wear on the neck of the cutting tooth base, but also makes it easier for cutting debris to clog, improving the protection of the neck of the cutting tooth base.

[0033] The bottoms of both trough A1 and trough B2 are flat, which is beneficial for production and processing.

[0034] Both the corners of the funnel-shaped groove A1 and the funnel-shaped groove B2 are provided with inner rounded corners 5, which facilitates the installation of irregularly shaped composite sheets.

[0035] A coaxial annular baffle 6 is provided in the middle of the cutting tooth base to prevent cutting chips from reaching the bottom of the cutting tooth base and ensure stable installation of the cutting tooth and the cutting tooth holder.

[0036] A rounded transition section 7 is provided between the neck and the middle of the cutting tooth base, which can avoid structural stress concentration in the cutting tooth base and ensure that the cutting tooth base functions stably.

[0037] The bottom end of the cutting tooth base is provided with a retaining groove 8, which can cooperate with the shaft retainer to install the cutting tooth and the cutting tooth seat.

[0038] The cross-sections of the funnel-shaped groove A1 and funnel-shaped groove B2 are triangular to facilitate processing and production.

[0039] The working principle of this embodiment is as follows: When the funnel-shaped grooves A1 and B2 are evenly distributed around the neck of the cutting tooth substrate, they can cover most of the neck area of ​​the cutting tooth substrate. The area of ​​the neck of the cutting tooth substrate not covered by the funnel-shaped grooves A1 and B2 is the area where the partition rib 4 is located. The funnel-shaped grooves A1 and B2 are used to braze and install the corresponding irregularly shaped diamond composite sheet, which can withstand the wear of cutting chips. The cutting chips flow along the partition rib 4. When the particle size of the cutting chips is greater than the exposed width of the partition rib 4, blockage will occur, preventing the cutting chips from flowing along the partition rib 4, thereby protecting the neck of the cutting tooth substrate. The funnel-shaped grooves A1 and B2 are both larger on the outside and smaller on the inside, so that the partition rib 4 becomes thicker towards the inside, thereby increasing the brazing contact area between the irregularly shaped composite sheet and the funnel-shaped grooves A1 and B2, ensuring the brazing connection strength. The funnel-shaped groove A1 and funnel-shaped groove B2 have a stronger clamping force on the irregular composite sheet, preventing the irregular composite sheet from falling off; the width of the partition rib 4 exposed on the outer end face can be limited to a smaller size, which not only limits the size of the cutting chips that slide down along the partition rib 4 and reduces the wear of the cutting tooth base neck, but also makes the cutting chips easier to clog, thus improving the effect of protecting the cutting tooth base neck.

[0040] Example 2: See Figure 4-6 Example 2 is basically the same as Example 1, and the similarities will not be repeated. The difference is that the cross-section of the funnel-shaped groove A1 and funnel-shaped groove B2 is convex; the middle of the partition rib 4 has a bend, which makes the cutting chips more likely to clog, thereby protecting the neck of the cutting tooth base.

[0041] Example 3: See Figure 7-9 Example 3 is basically the same as Example 1, and the similarities will not be repeated. The differences are: the cross-section of the bucket-shaped groove A 1 and the bucket-shaped groove B 2 is L-shaped; some of the dividing ribs 4 have a bend in the middle, which makes the cutting chips more likely to clog, thereby protecting the neck of the cutting tooth base.

Claims

1. A cutting tooth base with a funnel-shaped groove surrounding the neck, characterized in that, The neck is evenly distributed with several funnel-shaped grooves A and B; the neck of the cutting tooth base is also provided with a partition rib; adjacent funnel-shaped grooves A and B are separated by the partition rib; the cross sections of adjacent funnel-shaped grooves A and B are arranged in opposite directions and are assembled into a quadrilateral; the upper and lower sides of the quadrilateral are both horizontal; the two sides of the quadrilateral are of equal length and are inclined at the same angle relative to the axis of the cutting tooth base.

2. The cutting tooth base with a funnel-shaped groove around the neck according to claim 1, characterized in that: Both the funnel-shaped trough A and funnel-shaped trough B are larger on the outside and smaller on the inside.

3. The cutting tooth base with a funnel-shaped groove around the neck according to claim 1, characterized in that: The bottoms of both the funnel-shaped trough A and the funnel-shaped trough B are flat.

4. The cutting tooth base with a funnel-shaped groove around the neck according to claim 1, characterized in that: Both the funnel-shaped groove A and the funnel-shaped groove B have inner rounded corners.

5. The cutting tooth base with a funnel-shaped groove around the neck according to claim 1, characterized in that: The cutting tooth base has a coaxial annular baffle in the middle.

6. The cutting tooth base with a funnel-shaped groove around the neck according to claim 5, characterized in that: The cutting tooth base has a rounded transition section between the neck and the middle.

7. The cutting tooth base with a funnel-shaped groove around the neck according to claim 1, characterized in that: The bottom end of the cutting tooth base is provided with a retaining ring groove.

8. The cutting tooth base with a funnel-shaped groove around the neck according to claim 1, characterized in that: The cross-sections of the funnel-shaped troughs A and B are triangular.

9. The cutting tooth base with a funnel-shaped groove around the neck according to claim 1, characterized in that: The cross-sections of the funnel-shaped grooves A and B are convex.

10. The cutting tooth base with a funnel-shaped groove around the neck according to claim 1, characterized in that: The cross-sections of the funnel-shaped troughs A and B are L-shaped.