Long-service-life inlaid circular saw blade

Abstract

The utility model relates to the technical field of saw blades, and discloses a long-service-life inlaid circular saw blade which comprises a saw blade base body and an alloy blade welded and inlaid on a tool apron on the outer edge of the saw blade base body. A sinking table part is arranged in the middle of the side wall of the saw blade base body, the contact area between the saw blade base body and a cut object during deep cutting is reduced through the sinking table part, and then the situation that kinetic energy of a motor is converted into friction heat energy is effectively reduced; and a reinforcing body is fixedly arranged at the sinking table part through welding or mechanical connection to reinforce the middle structure of the saw blade base body. According to the saw blade, the contact area of the saw blade and the side wall of a cut object in the working process can be effectively reduced, heat generation is effectively reduced, certain air flow is generated around the saw blade in the high-speed rotating process through matching of the reinforcing ribs of a specially-made structure and the heat dissipation holes, and heat dissipation is accelerated by penetrating through the heat dissipation holes.

Description

Technical Field

[0001] This utility model relates to the field of saw blade technology, and in particular to a long-life insert circular saw blade. Background Technology

[0002] The existing patent publication number (CN205254248U) discloses a saw blade, aiming to provide a saw blade suitable for cutting wood that is durable, has a long lifespan, and good heat dissipation. The key technical points are: it includes a saw blade body, saw teeth arranged on the circumference of the saw blade body, chip grooves formed at the tooth roots between adjacent saw teeth, and saw tooth cutting heads mounted on the saw blade body facing the cutting direction. The side of the saw tooth cutting head facing away from the center of the saw blade body is the top surface, which is inclined downwards in the direction away from the cutting direction. A concave groove is provided on the side of the saw tooth cutting head facing the cutting direction, and the edge of the groove is tangent to the side edge of the saw tooth cutting head. After tangency, two lateral edges are formed on the side of the saw tooth cutting head facing the cutting direction, and these edges can serve as cutting blades.

[0003] The existing patent publication number is (CN201300256Y), which discloses an ultra-thin circular saw blade made of cemented carbide material for rapid cutting. It includes a circular saw blade body with a hole in the center and a transmission hole outside the central hole. Saw teeth are distributed on the outer circumference of the saw blade body. Chip breaking grooves are provided on the upper surface of the saw teeth, and symmetrical chamfers and gap angles are provided on the sides of the saw teeth. A circular arc-shaped chip clearing groove is provided at the front end of the saw teeth.

[0004] However, as the saw blade penetrates deeper, its thickness increases due to thermal expansion. In addition, the saw blade undergoes slight deformation under pressure during use, causing the sidewall of the saw blade to come into contact with the workpiece being cut at high speed, resulting in rapid heating.

[0005] This proposal is put forward in order to improve and optimize the above-mentioned problems or shortcomings. Utility Model Content

[0006] A long-life insert circular saw blade includes a saw blade substrate and an alloy blade welded and embedded on a tool holder along the outer edge of the saw blade substrate;

[0007] A countersunk portion is provided in the middle of the side wall of the saw blade base. The countersunk portion reduces the contact area between the saw blade base and the workpiece during deep cutting, thereby effectively reducing the conversion of motor kinetic energy into frictional heat energy.

[0008] A reinforcing body is fixed at the countersunk section by welding or mechanical connection to strengthen the central structure of the saw blade base.

[0009] Preferably, the sinking platform is fixedly provided with reinforcing ribs arranged in a ring-shaped interval array to enhance the working strength of the sinking platform, and the thickness of the reinforcing ribs is less than the sinking depth of the sinking platform.

[0010] Preferably, the reinforcing rib has an arc-shaped structure, and the bending direction of the reinforcing rib is opposite to the rotation direction of the saw blade base, thereby enhancing the overall structural toughness of the saw blade base by utilizing the arc-shaped structure of the reinforcing rib.

[0011] Preferably, the recessed platform is also provided with a number of through-holes to improve heat dissipation.

[0012] Preferably, the angle between the inner arc sidewall of the reinforcing rib and the sidewall of the recessed platform is an acute angle.

[0013] Preferably, the width of the blade holder on the saw blade base is at least 1.5 times the reference distance between two adjacent blades on the saw blade base, so as to meet the cutting strength requirements.

[0014] The advantages and positive effects of this utility model are:

[0015] It can effectively reduce the contact area between the saw blade and the side wall of the workpiece during operation, thus effectively reducing heat generation.

[0016] The combination of specially designed reinforcing ribs and heat dissipation holes generates a certain airflow around the saw blade during high-speed rotation, and the airflow passes through the heat dissipation holes to accelerate heat dissipation. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of this utility model.

[0020] The attached diagram is labeled as follows: 10, saw blade base; 11, countersunk section; 12, heat dissipation hole; 13, reinforcing rib. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0022] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance. The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0023] like Figure 1-2 As shown, the present invention provides a long-life insert circular saw blade, comprising a saw blade base 10 and an alloy blade welded and embedded on the outer edge of the saw blade base 10.

[0024] A countersunk portion 11 is provided in the middle of the side wall of the saw blade base 10. The countersunk portion 11 reduces the contact area between the saw blade base 10 and the workpiece during deep cutting, thereby effectively reducing the conversion of motor kinetic energy into frictional heat energy.

[0025] A reinforcing body is fixed at the countersunk section 11 by welding or mechanical connection to strengthen the central structure of the saw blade base 10.

[0026] Preferably, the sinking platform 11 is fixedly provided with reinforcing ribs 13 arranged in a ring-shaped interval array. The reinforcing ribs 13 enhance the working strength of the sinking platform 11, and the thickness of the reinforcing ribs 13 is less than the sinking depth of the sinking platform 11.

[0027] Preferably, the reinforcing rib 13 has an arc-shaped structure, and the bending direction of the reinforcing rib 13 is opposite to the rotation direction of the saw blade base 10, thereby enhancing the overall structural toughness of the saw blade base 10 by utilizing the arc-shaped structure of the reinforcing rib 13.

[0028] Preferably, the recessed platform 11 is also provided with a plurality of through-holes 12 at intervals to improve heat dissipation.

[0029] Preferably, the angle between the inner arc sidewall (K surface) of the reinforcing rib 13 and the sidewall (A surface) of the recessed platform 11 is an acute angle.

[0030] Preferably, the width of the blade holder on the saw blade base 10 ( Figure 2 The blade (marked as H) is at least 1.5 times the reference distance between two adjacent blades on the saw blade base 10, in order to meet the cutting strength requirement.

[0031] It should be emphasized that the embodiments described in this utility model are illustrative rather than limiting. Therefore, this utility model is not limited to the embodiments described in the specific implementation. Any other implementation methods derived by those skilled in the art based on the technical solutions of this utility model are also within the scope of protection of this utility model.

Claims

1. A long-life blade for a circular saw, comprising a blade base (10) and an alloy blade welded to the blade base (10) at an outer edge of a blade seat; characterized in that: a sunken portion (11) is provided in a middle portion of a side wall of the blade base (10), the sunken portion (11) reducing the contact area between the blade base (10) and a workpiece during deep cutting, thereby effectively reducing the conversion of motor kinetic energy into frictional heat energy; a reinforcing body is fixed to the sunken portion (11) by welding or mechanical connection to reinforce the middle portion of the blade base (10).

2. A long-life blade circular saw blade according to claim 1, characterized in that: A plurality of reinforcing ribs (13) are fixed to the sunken portion (11) in an annular and spaced array, the reinforcing ribs (13) reinforcing the working strength of the sunken portion (11), and the thickness of the reinforcing ribs (13) is less than the sunken depth of the sunken portion (11).

3. A long-life blade circular saw blade according to claim 2, characterized in that: The reinforcing ribs (13) are arc-shaped, and the bending direction of the reinforcing ribs (13) is opposite to the rotating direction of the blade base (10), the arc-shaped reinforcing ribs (13) reinforcing the toughness of the overall structure of the blade base (10).

4. A long-life blade circular saw blade according to claim 3, characterized in that: A plurality of through cooling holes (12) are also provided in the sunken portion (11) in a spaced manner, for improving heat dissipation.

5. A long-life blade circular saw blade according to claim 4, characterized in that: The included angle between the inner arc surface side wall of the reinforcing ribs (13) and the side wall of the sunken portion (11) is an acute angle.

6. A long-life blade circular saw blade according to any one of claims 1-5, characterized in that: The width of the blade seat on the blade base (10) is at least 1.5 times the reference distance between two adjacent blade bases on the blade base (10).

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