Combined embedded circular saw blade

Abstract

The utility model discloses a combined type inlaid circular saw blade, and relates to the technical field of circular saw blades. The combined type embedded circular saw blade comprises a base body and a blade, and the blade is tightly riveted on the base body. The blades are divided into first blades and second blades, only one rivet hole is formed in the lower portion of each first blade, more than two rivet holes are formed in the lower portion of each second blade, and the first blades and the second blades are alternately arranged in a penetrating mode. Compared with a blade of a traditional blade-embedded circular saw blade, the combined blade-embedded circular saw blade has the advantages that the use amount of high-speed steel materials is reduced by nearly half, and the manufacturing cost is reduced. The size of the high-speed steel sawteeth is obviously reduced, the high-speed steel sawteeth are connected with the base body through the carbon steel connecting plate, the using amount of high-speed steel is reduced, and the production cost of the saw blade is reduced on the premise that it is guaranteed that the cutting capacity and the service life are equivalent to those of an original saw blade.

Description

Technical Field

[0001] The utility model relates to the technical field of circular saw blades, in particular to a combined inlaid circular saw blade. Background Art

[0002] Saw blades are thin circular tools used to cut solid materials. Among them, saw blades used to cut metal materials are high-speed steel saw blades. Existing high-speed steel saw blades are mostly one-piece structures or equidistant blade insert structures. The diameter range of the one-piece structure is below 600mm, and the materials used are all high-speed steel, which has a high production cost; the insert structure diameter is generally within 2000mm, and the base uses low-alloy tool steel instead of high-speed steel to reduce production costs. However, the outer cylindrical blade (divided into a working part and a connecting part, and the working part and the connecting part are an integrated structure) is still made of high-speed steel. Due to the larger outer diameter, more high-speed steel materials will still be consumed, and the cost is slightly reduced, but the reduction is small. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a combined inlaid circular saw blade, which changes the blade structure and combination method and saves the amount of expensive high-speed steel material.

[0004] In order to achieve this technical purpose, the utility model adopts the following scheme:

[0005] The combined inlaid circular saw blade includes a base and a blade, and the blade is riveted to the base; the blade is divided into a first blade and a second blade, the lower part of the second blade has only one rivet hole, and the number of rivet holes in the lower part of the first blade is more than two, and the first blade and the second blade are arranged alternately.

[0006] Compared with the prior art, the present invention offers the following advantages: the combined insert circular saw blade uses nearly half the high-speed steel material of conventional insert circular saw blades, reducing production costs. The high-speed steel teeth are significantly smaller, and a carbon steel connecting plate connects the high-speed steel teeth to the base, reducing the amount of high-speed steel used. This reduces production costs while maintaining cutting performance and service life comparable to conventional saw blades.

[0007] Furthermore, semicircular combining holes are respectively opened on both sides of the first blade and the second blade. The semicircular combining hole of the first blade and the semicircular combining hole on the same side of the adjacent second blade form a complete combining hole for splicing the first blade and the second blade.

[0008] Furthermore, the first blade includes a serrated piece and a connecting plate. The lower side of the serrated piece is provided with a first boss, and the upper edge of the base is provided with a second boss. The first boss is connected to the second boss, and connecting plates are respectively clamped on both sides of the first boss and the second boss to achieve the effect of connecting the second blade to the plane of the base.

[0009] Furthermore, the connecting plate is connected to the first boss and the second boss by rivets.

[0010] Furthermore, the lower end surface of the second blade is provided with a jaw groove of a second convex shoulder, the jaw groove is provided with a rivet hole, and the second blade is connected to the second convex shoulder of the base through the rivet.

[0011] Furthermore, the tangential clearance angle of the blade ranges from 0.5° to 1°. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of the blade splicing structure of the combined inlaid circular saw blade provided by the utility model;

[0013] Figure 2 for Figure 1 Schematic diagram of the middle AA surface;

[0014] Figure 3 for Figure 1 Schematic diagram of the middle BB surface;

[0015] Figure 4 for Figure 1 Schematic diagram of the middle C direction;

[0016] Figure 5 A schematic structural diagram of a sawtooth blade provided in an embodiment of the present utility model;

[0017] Figure 6 for Figure 5 Schematic diagram of the middle DD surface;

[0018] Figure 7 A schematic diagram of the main structure of a first blade provided in an embodiment of the present utility model;

[0019] Figure 8 A schematic side view of the first blade provided in an embodiment of the present utility model;

[0020] Figure 9 A schematic structural diagram of a connecting plate provided in an embodiment of the present utility model;

[0021] Markings in the figure are: 1, base; 11, second boss; 2, second blade; 21, jaw groove; 3, first blade; 31, connecting plate; 32, serrated piece; 321, first boss; 322, rivet hole; 323, semicircular connecting hole. DETAILED DESCRIPTION

[0022] In order to fully understand the purpose, features and effects of the present invention, the present invention is described in detail through the following specific implementation methods, but the present invention is not limited thereto.

[0023] like Figures 1 to 3As shown, the utility model provides a combined inlaid circular saw blade, including a base 1 and a blade, which is fastened to the base 1 by rivets. The blade is divided into a first blade 3 and a second blade 2. The second blade 2 has only one rivet hole 322, and the first blade 3 has two or more rivet holes 322. The second blade 2 and the first blade 3 are alternately arranged on the base 1, and the combined rivet holes 322 are equidistantly distributed along the circumferential direction. Preferably, the blade tangential clearance angle α of the saw blade is in the range of 0.5°~1°, such as Figure 4 shown.

[0024] Preferably, Figures 5 to 8 As shown, the two side walls of the second blade 2 and the first blade 3 are respectively provided with semicircular combining holes 323. The semicircular combining hole of the first blade and the semicircular combining hole on the same side of the adjacent second blade form a complete combining hole. Rivets are installed in the combining hole to splice the second blade 2 and the first blade 3 together.

[0025] The first blade 3 includes a serrated piece 32 made of high-speed steel and a connecting plate 31 made of carbon steel. The lower side of the serrated piece 32 is provided with a first boss 321. A plurality of second bosses 11 are evenly distributed on the outer contour of the base body 1 in the circumferential direction. The spacing of the second bosses 11 matches the saw teeth. The first boss 321 and the second boss 11 are arranged relative to each other up and down. A connecting plate 31 is pressed on both sides of the first boss 321 and the second boss 11 respectively. Rivet holes 322 are provided on the connecting plate 31 aligned with the positions of the first boss 321 and the second boss 11. The first boss 321, the second boss 11 and the connecting plate 31 are connected into a whole by rivets, that is, the first blade 3 is connected to the base body 1. Preferably, the thickness of the connecting plate 31 is the same as the thickness of the groove of the first boss 321 or the second boss 11, so that the connecting plate 31 is coplanar with the serrated piece 32 and the outer surface of the base body 1, achieving a planar connection effect. The outer side of the rivet hole on the connecting plate 31 is a chamfered cone hole structure, such as Figure 9 As shown, the tapered hole traps the rivet head so that the head is coplanar with the saw blade.

[0026] The lower end surface of the second blade 2 is provided with a jaw groove 21 of the second convex shoulder 11. The jaw groove 21 opens downward and is provided with a rivet hole. The second blade 2 is connected to the second convex shoulder 11 of the base 1 through the rivet.

[0027] During installation, first assemble the first blade 3, that is, the assembly connection of the sawtooth piece 32 and the connecting plate 31; then, install the first blade 3 circumferentially on the base 1, and reserve a gap between two adjacent first blades 3 for installing the second blade 2. Then, install the second blade 2 in the reserved gap, and install the rivet in the connecting hole of the first blade and the second blade, and splice the second blade 2 and the first blade 3 to form a combined inlaid circular saw blade.

[0028] The production of each blade block of a φ1320mm saw blade saves 0.3kg of M2 high-speed steel. Each saw blade consists of 36 blade blocks, saving a total of 10.8kg of M2 high-speed steel. The price of M2 high-speed steel is 60 yuan per kilogram, saving a total of 648 yuan. After deducting the additional carbon steel consumption of 100 yuan, the total savings per circular saw blade is 548 yuan.

[0029] Finally, it should be noted that the above-listed examples are only preferred embodiments of the present invention. Of course, those skilled in the art can make changes and modifications to the present invention. If these modifications and modifications fall within the scope of the claims of the present invention and their equivalent technologies, they should be considered to be within the scope of protection of the present invention.

Claims

1. A combined insert circular saw blade comprising a base and a blade, wherein the blade is riveted to the base; The blade is divided into a first blade and a second blade. The lower part of the second blade has only one rivet hole, and the lower part of the first blade has more than two rivet holes. The first blade and the second blade are alternately arranged.

2. The combined insert circular saw blade according to claim 1, characterized in that: Semicircular combining holes are respectively provided on both sides of the first blade and the second blade. The semicircular combining hole of the first blade and the semicircular combining hole on the same side of the adjacent second blade form a complete combining hole for splicing the first blade and the second blade.

3. The combined insert circular saw blade according to claim 1, characterized in that: The first blade includes a serrated piece and a connecting plate. The lower side of the serrated piece is provided with a first boss, and the upper edge of the base is provided with a second boss. The first boss is connected to the second boss, and connecting plates are respectively clamped on both sides of the first boss and the second boss to achieve a plane connection effect between the first blade and the base.

4. The combined insert circular saw blade according to claim 3, characterized in that: The connecting plate is connected to the first boss and the second boss by rivets.

5. The combined insert circular saw blade according to claim 3, characterized in that: The lower end surface of the second blade is provided with a jaw groove of a second convex shoulder, the jaw groove is provided with a rivet hole, and the second blade is connected to the second convex shoulder of the base through the rivet.

6. The combined insert circular saw blade according to claim 3, characterized in that: The outer side of the rivet hole on the connecting plate is a chamfered cone hole structure.

7. The combined insert circular saw blade according to claim 1, wherein: The tangential clearance angle of the blade ranges from 0.5° to 1°.

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