TWI321611B - Rotary cutting bit with material-deflecting ledge - Google Patents

Description

丄 、 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明For example, asphalt pavement. [Prior Art] Mining, excavation, and paving of new pavement operations are generally performed by forcing the rotating cutting edge through the material being cut. The cutter is mounted to a driven support member, such as a rotating drum, a fixed beam, etc., to force the crucible through the material. A typical cutting edge includes a closely conforming carbide tip that is advanced to the leading edge of the steel shank. The shank is mounted to a branch #φ,& 吋 杈 杈 , , 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许 容许Standing from a &, the axis is free to rotate and remains out of the support. Basically the tip is automatically sharpened due to free rotation. It should be understood that the above-mentioned cutting machine is used for cutting through soft materials, such as asphalt, and is also used for cutting through hard materials such as rock and ice. The most wear of the door occurs at the tip of the carbide, so the wear life of the cutting edge depends on the carbide tip, however, during cutting a relatively soft material such as dicecum, coal = salt, the highest wear occurs in the knife. At the shank, the gp rushes into the bag and rubs the asphalt caused by the shank. Therefore, when cutting the dice to perform the road re-laying operation, the A of the cutter depends on the shank. Consumption When cutting soft materials such as diqing, it is desirable to provide a cutting edge for wear life. Species of seasons 1321611

31 Cutting tip 33 Ring body 35 Front end 37 Part 39 Second shoulder 41 Second ring body 43 Top 45 Bottom end 47 Bump 49 Barrier 51 Barrier 52 Bottom end face 53 Depressed surface part 55 Breakpoint

57 Tips 59 Cones 61 points 13

Claims (1)

Month % is too patent application range 1 · One-in-one cutting edge, which includes: all blade body, the cutting edge body has a front end surface and a cylindrical side surface, and the cylindrical side surface portion is located under the front end surface a shoulder portion extending approximately perpendicular to a middle bottle edge τ~ axis of the cutter body, at least a portion of the cylindrical side surface portion being located above the shoulder portion; and a ring body, the ring body being cut The blade body is rigid and attached to the cutting edge body at the front end face of the shoulder such that the ring body is entirely below the cutting front end face, ▲ wherein 'the distance between the front end face and the top of the ring body The ratio of the distance between the front end face and the bottom end face of the cutting edge body is in the range of 0 U to 0.5, and wherein the cutting edge body is included under the first shoulder - the second a shoulder, the diameter of the cutter body above the second shoulder is not greater than a diameter at the first: shoulder blade, and the cutting edge comprises a second ring body, and the second ring body of the stomach is connected to the cutting edge The body is located at a front end surface of the second shoulder, wherein the front end surface is The distance between the top of the second ring divided by the range of a ratio based on a distance between the bottom end surface of the distal end surface of the cutting blade body 〇15 to 5 billion. 2. A cutting edge comprising: a cutting body having a front end surface and a cylindrical side surface portion, the cylindrical side surface portion including a shoulder portion below the front end surface, the shoulder And extending approximately perpendicular to a central axis of the cutting edge body, at least a portion of the cylindrical side surface portion being located above the shoulder; a ring body 'the ring body is harder than the cutting blade body' and attached to the cutting edge γ立^; 1 2 3 The front end face of one shoulder, such that the ring body is entirely located below the front end of the cutting edge body & HJ% face; and the cutting tip 'the cutting tip is connected to the front end face, ^ The ratio of the distance between the front end face and the top of the ring body divided by the distance between the front end face and the bottom end face of the body is 0. J 5 to 0 The range of _1, Φ Φ, τ 'The diameter of a bottom of the cutting tip divided by the diameter of the cut body at the bottom of the cutting hole is in the range of 0.72 to 0.95. The cutting edge of the second item, wherein the cutting edge progressively includes a delay And the extension portion is located below the bottom end surface of the cutting body and extends from the bottom end surface of the cutter body along the central axis. The first extension portion is adapted to receive a tool for inserting the cutting edge into a seat. 4. The cutting edge according to claim 3, wherein the direct control of the cutting tip is divided by the ratio of an outer diameter of the ring body to 〇. 6 〇 to 〇. 8 〇. 15 1 The cutting edge according to the fourth aspect of the patent application, wherein the cutting tip is harder than the cutter body, the diameter of the cutter body on the shoulder is not larger than the diameter of the shoulder, and the ring body is borrowed The cutting edge of the shoulder portion of the fifth aspect of the invention, wherein the cutting tip has a base portion, a tip portion and a side portion on the base Extending between the portion and the tip portion, the tip portion is generally in the shape of a protrusion, and the side portion is generally in the shape of a recess. 3 The cutter of the third aspect of the patent application, the cutting tip 1321611 is compared The cutting blade is hard, and the cutting blade is The diameter of the shoulder is not greater than the diameter of the shoulder, and the ring is joined to the front end surface of the shoulder by brazing. 8. The cutting edge of the scope of claim 2, wherein The ratio of the diameter of the cutting tip divided by the outer diameter of the ring body is 〇 60 to 0.80. 9· A cutting edge comprising: - a cutter body having a substantially flat front end And a cylindrical side surface portion, (4) the column side surface portion includes a shoulder portion below the front end surface, the shoulder portion extending approximately perpendicular to a central axis of the cutter body, and at least the cylindrical side surface portion a portion above the shoulder; a cutting tip connected to the front end face; and a ring body rigider than the cutting edge body, the ring body being located at the front end face of the shoulder connected to the cutting edge body 'making the ring The body is entirely under the front end face of the cutting edge body, and the ratio of the diameter of one bottom of the cutting tip of the mountain to the cutting edge of the cutting tip = Zou is in the range of 0.72 to 0.95. The cutting edge according to the ninth aspect of the patent application, wherein the cutter is second, a second shoulder under the first shoulder, the diameter of the cutter body is not the diameter of the knife package It is larger than the diameter of the second shoulder, and is cut into a second ring body, and the second ring body is connected to the cutting edge body at the front end surface of the shoulder portion. 1. The cutting edge according to the ninth aspect of the patent application, wherein the ratio of the quotient of the cut flavor to the gamma y- diameter divided by the outer diameter of the ring body is between 0·60 and 〇8. 〇16 1321611 Range. 12. A cutter comprising: a cutting edge body having a substantially planar front end face and a cylindrical side surface portion, the cylindrical side surface portion including the front end face a shoulder extending approximately perpendicular to a central axis of the cutter body, at least a portion of the cylindrical side surface portion being located above the shoulder; a cutting tip coupled to the front end face; and a ratio (4) The body is rigid (four), the ring body is connected to the cutting edge body at the front end surface of the shoulder portion, so that the ring body is entirely below the front end face of the cutting blade body, wherein the ring body is connected to the shoulder by brazing a front end face of the portion, and wherein the ratio of the diameter of the cutting tip divided by 兮^ n fin and divided by only the outer diameter of the 4 body is in the range of 〇_60 to 〇.8〇, and wherein the cutter The body is included in the first portion, the cutter body is located at a second shoulder below the shoulder of the second shoulder, and the cutting edge is larger than the diameter at the second shoulder.駚站,击ΜΜ一三 -苐二环体, % Of the first body is connected to the cutting member located at the π contact shoulder 13 of the front end surface 0P. 13. A cutting edge comprising: a cutter body having a face, the side being included at one of the front end faces and one side of the front face and approximately perpendicular to a center of the cutter body Axis_shoulder's diameter above the first shoulder of the first shoulder is not greater than the position, the cutting edge is located at the diameter of the shoulder; to 17 1321611 The second shoulder portion of the side, the cutter body is located at a diameter not greater than a diameter of the second shoulder portion; and the first ring body is connected to the cutter body portion and the second portion a front end surface of the shoulder portion, such that the first ring body is located at a portion of the front end of the cutter body, and a part of the circle is rounded, the side surface is located at least one column above the first shoulder portion and the side surface is located At least above the second shoulder - columnar. 14. The cutter of claim 13, wherein the distance between the front end face and the top of the ring body is divided by the distance between the front end face and the bottom end face of the cut body; The ratio is in the range of 〇.丨5 to 〇. 5 15. The cutter according to the thirteenth aspect of the patent application, the step of the fish, the step comprising a cutting tip connected to the front end face. 1 6. The cutter according to item 13 of the patent application scope, wherein the ratio of the diameter of one bottom of the cutting tip divided by the diameter of the cutting edge of the cutting tip is <6 to 0.95 range. 17. The cutting edge according to claim 13 of the patent application, wherein the ratio of a diameter of the cutting edge of the six 'A' to the outer diameter of the first ring body is in the range of from %·6〇 to 〇·80. 18. The cutting edge according to item 3 of the patent application, 1 丫, tfe platinum-ring and the second ring are harder than the tang. 19. A cutting edge comprising: - a cutting tip having a base portion. 18 1321611 a tip portion, the tip portion is generally convex in shape; and ~ a side portion on the base Extending between the portion and the tip portion, the side portion is generally in the shape of a recess and intersects the cough tip portion at a joint; a cutting edge body having a front end surface connecting the cutting tip and a bottom end a portion and a von portion located below the front end face, the shoulder portion extending approximately perpendicular to a central axis of the cutting edge body; and a ring body that is harder than the cutting blade body, the ring body being connected The cutting edge body is located at an end surface of the shoulder portion such that the ring body is entirely located below the front end surface of the cutter body, wherein at least a portion of the side surface above the shoulder portion is rounded; and wherein 'relative to the The joint is at a 90 degree angle to the cutter body, and wherein the ring body is located within the long side of the defined nine degree angle. 20. The cutter of the patent φ please (4) 19, wherein the cut length: all parts between the split end and the bottom end portion are located substantially by the temple's long &&; 之 my dotted cone Inside. XI. Schema: as the next page 19