Wheel hub structure saw blade

Abstract

The utility model relates to the technical field of saw blades, and provides a wheel hub structure saw blade which is characterized by comprising a saw blade base body and a plurality of tooth blades, the tooth blades are arranged on the saw blade base body, all the tooth blades are evenly arranged along the outer circumferential face of the saw blade base body, a chip groove is reserved between every two adjacent tooth blades, and the tooth blades are arranged on the saw blade base body. Each tooth piece is provided with a blade installation groove and an anti-reverse-rotation protrusion, the blade installation grooves are located in the side faces, facing the cutting direction, of the tooth pieces and communicate with the chip grooves, and the distance between the outer wall of each tooth piece and the axis of the saw blade base body is linearly decreased from the side close to the corresponding blade installation groove to the other side. The anti-inversion protrusions are arranged on the outer walls of the tooth pieces and located on the sides, away from the blade installation grooves, of the tooth pieces. According to the technical scheme, the problem that a saw blade capable of effectively preventing inversion is needed in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of saw blades, and more specifically, to a saw blade with a hub structure. Background Art

[0002] Saw blades are a general term for thin circular cutting tools used to cut solid materials, and are widely used in the cutting of materials such as stone, metal materials, solid wood, furniture, artificial boards, aluminum alloys, aluminum profiles, radiators, plastics, and plastic steel. Reversing the saw blade may cause a series of hazards. For example, it will lead to a deterioration in the processing effect because the saw blade is usually designed and optimized for clockwise rotation. The reversed saw blade may cause uneven distribution of cutting force, thus affecting the machining accuracy and flatness. The reversed saw blade will also increase the cutting resistance, making the saw blade more likely to get stuck or damage the workpiece. When the fixing method, bearings, and transmission mechanism of the saw blade are not designed for reverse rotation, reverse use may damage these components. The reversed saw blade may cause additional vibrations in the sawing machine or processing equipment, thereby affecting the stability and service life of the equipment. Therefore, there is an urgent need for a saw blade that can effectively prevent reverse rotation. Content of the Utility Model

[0003] The utility model provides a saw blade with a hub structure, which solves the problem in the related art that there is an urgent need for a saw blade that can effectively prevent reverse rotation.

[0004] The technical solution of the utility model is as follows: A saw blade with a hub structure, characterized in that it includes

[0005] A saw blade base

[0006] Tooth chips, the tooth chips are arranged on the saw blade base, the number of the tooth chips is multiple, all the tooth chips are evenly arranged along the outer circumferential surface of the saw blade base, a chip removal groove is left between adjacent tooth chips, the tooth chip has a blade installation groove and an anti-reverse rotation protrusion, the blade installation groove is located on the side of the tooth chip facing the cutting direction and is communicated with the chip removal groove, the distance between the outer wall of the tooth chip and the axis of the saw blade base linearly decreases from the side close to the blade installation groove to the other side, and the anti-reverse rotation protrusion is arranged on the outer wall of the tooth chip and is located on the side far from the blade installation groove.

[0007] The outer wall of the anti-reverse rotation protrusion is an arc surface S1, the radius of the arc surface S1 is r1, and r1 is equal to the maximum distance between the outer wall of the tooth chip and the axis of the saw blade base.

[0008] The chip removal groove is a U-shaped groove.

[0009] The depth of the chip removal groove is d, the radius of the saw blade base is r, and d:r = 1:6 to 1:7.

[0010] The opening width of the chip removal groove is d1, and the distance between two adjacent chip removal grooves is d2, where d1 is less than or equal to d2.

[0011] The width of the blade mounting groove gradually decreases from one end close to the saw blade base body to the other end.

[0012] The saw blade base body has a set of hollow holes, and all the hollow holes are evenly arranged in the circumferential direction around the axis of the saw blade base body.

[0013] The axis of the saw blade base body is O, the axis of one end of the hollow hole is A, and the axis of the other end is B. A is located between O and B, and A is located at the end of the hollow hole facing the cutting direction. A, O, and B are arranged in a triangle. One side of the hollow hole is an arc surface S2, and the other side is an arc surface S3 that bulges from the middle towards the direction away from the center of the arc surface S2.

[0014] The saw blade base body has a shaft hole, the shaft hole is located at the center of the saw blade base body, and there are at least two limiting protrusions on the hole wall of the shaft hole. All the limiting protrusions are evenly arranged in the circumferential direction of the shaft hole, and there is a gap between adjacent limiting protrusions.

[0015] The number of the tooth chips is an integer multiple of four.

[0016] The working principle and beneficial effects of the present utility model are as follows: The tooth chips are arranged on the saw blade base body, and the number of the tooth chips is multiple. All the tooth chips are evenly arranged along the outer circumferential surface of the saw blade base body, and there are chip removal grooves between adjacent tooth chips. The tooth chips have blade mounting grooves and anti-reverse rotation protrusions. The blade mounting grooves are located on the side of the tooth chips facing the cutting direction and communicate with the chip removal grooves. The distance between the outer wall of the tooth chip and the axis of the saw blade base body linearly decreases from the side close to the blade mounting groove to the other side. The anti-reverse rotation protrusions are arranged on the outer wall of the tooth chip and are located on the side away from the blade mounting groove.

[0017] The saw blade base body is the basic structure of the saw blade and is used to carry the tooth chips and blades. All the tooth chips are evenly arranged along the outer circumferential surface of the saw blade base body, which can ensure the stability of the saw blade during the cutting process. The distance between the outer wall of the tooth chip and the axis of the saw blade base body linearly decreases from the side close to the blade mounting groove to the other side. Such a design helps to improve the cutting efficiency and reduce the cutting resistance. The blade is installed in the blade mounting groove on the tooth chip for cutting materials, which can improve the cutting efficiency of the saw blade. The tooth chips cut the materials through high-speed rotation, and the chips generated during the cutting process are discharged through the chip removal grooves. Connecting the blade mounting groove with the chip removal groove helps to improve the chip removal effect and reduce the risk of saw blade blockage. The anti-reverse rotation protrusions can prevent the saw blade from reversing during operation, which helps to improve the safety of the saw blade during use. Description of the Drawings

[0018] The following will further illustrate the above characteristics, technical features, advantages and their implementation manners of the present utility model in a clear and understandable manner in combination with the accompanying drawings.

[0019] Figure 1 It is a schematic structural view of the present utility model without a blade.

[0020] Figure 2 It is a schematic structural view of the present utility model.

[0021] Figure 3 It is a schematic view of each parameter in the present utility model.

[0022] In the figure: 1, saw blade base body; 2, tooth blade; 3, chip removal groove; 4, blade installation groove; 5, anti-reverse rotation protrusion; 6, hollow hole; 7, shaft hole; 8, limit protrusion; 9, blade. Specific embodiments

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the specific embodiments of the present utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings and other embodiments can be obtained.

[0024] For the sake of simplicity of the drawings, only the parts related to the utility model are schematically shown in each drawing, and they do not represent the actual structure of the product. In addition, for the sake of simplicity of the drawings and easy understanding, in some drawings, components with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0025] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0027] Example, refer to Figures 1 to 2, which is an embodiment of the present utility model, proposes a hub-structured saw blade, including a saw blade base body 1 and tooth blades 2. The tooth blades 2 are arranged on the saw blade base body 1, and the number of the tooth blades 2 is multiple. All the tooth blades 2 are evenly arranged along the outer circumferential surface of the saw blade base body 1. A chip removal groove 3 is left between adjacent tooth blades 2. The tooth blade 2 has a blade mounting groove 4 and an anti-reverse rotation protrusion 5. The blade mounting groove 4 is located on the side of the tooth blade 2 facing the cutting direction and communicates with the chip removal groove 3. The distance between the outer wall of the tooth blade 2 and the axis of the saw blade base body 1 linearly decreases from the side close to the blade mounting groove 4 to the other side. The anti-reverse rotation protrusion 5 is arranged on the outer wall of the tooth blade 2 and is located on the side far from the blade mounting groove 4.

[0028] In this embodiment, the saw blade base body 1 is the basic structure of the saw blade, which is used to carry the tooth blade 2 and the blade 9. All the tooth blades 2 are evenly arranged along the outer circumferential surface of the saw blade base body 1, which can ensure the smoothness of the saw blade during the cutting process. The distance between the outer wall of the tooth blade 2 and the axis of the saw blade base body 1 linearly decreases from the side close to the blade mounting groove 4 to the other side. Such a design helps to improve the cutting efficiency and reduce the cutting resistance. The blade mounting groove 4 is located on the side of the tooth blade 2 facing the cutting direction, that is, on the cutting end side of the tooth blade 2. The blade 9 is installed in the blade mounting groove 4 on the tooth blade 2 for cutting materials, which can improve the cutting efficiency of the saw blade. The tooth blade 2 cuts the material by high-speed rotation, and the chips generated during the cutting process are discharged through the chip removal groove 3. Connecting the blade mounting groove 4 with the chip removal groove 3 helps to improve the chip removal effect and reduce the risk of saw blade blockage. The anti-reverse rotation protrusion 5 can prevent the saw blade from reversing during operation, which helps to improve the safety of the saw blade during use. Arc chamfers are provided at the corners of the anti-reverse rotation protrusion 5, so that the contact surface between the anti-reverse rotation protrusion 5 and the workpiece is larger. During the anti-reverse rotation process, damage to the workpiece can be avoided, and the anti-reverse rotation protrusion 5 can also be prevented from being damaged due to concentrated force, which can extend the service life of the saw blade and reduce the maintenance cost.

[0029] Further, as shown in Figure 1 、 Figure 2 and Figure 3 , the outer wall of the anti-reverse rotation protrusion 5 is an arc surface S1, and the radius of the arc surface S1 is r1, and r1 is equal to the maximum distance between the outer wall of the tooth blade 2 and the axis of the saw blade base body 1. On the premise of ensuring that the anti-reverse rotation protrusion 5 can effectively prevent the saw blade from reversing, damage to the workpiece caused by the existence of spikes on the anti-reverse rotation protrusion 5 can be avoided, and at the same time, it can be avoided that the anti-reverse rotation protrusion 5 protrudes outside the cutting end of the tooth blade 2 and is easily knocked and damaged.

[0030] Further, as shown in Figure 1 、 Figure 2 and Figure 3As shown, the chip removal groove 3 is a U-shaped groove, enabling the chip removal groove 3 to have a sufficiently large chip removal space, which can better accommodate and guide the chips generated during cutting. The chips can smoothly enter the chip removal groove 3 and then be discharged from the working area of the saw blade through the chip removal groove 3. This helps to remove the chips generated during cutting, reduces the risk of saw blade clogging, avoids the accelerated wear rate of the saw blade and the increase in cutting resistance caused by chip accumulation, and can improve the cutting efficiency and service life of the saw blade.

[0031] Furthermore, as Figure 1 , Figure 2 and Figure 3 shown, the depth of the chip removal groove 3 is d, and the radius of the saw blade substrate 1 is r, where d:r = 1:6 to 1:7. Without affecting the strength of the saw blade itself, it enables the chip removal groove 3 to have a sufficiently large depth, thus having a sufficiently large chip removal space, which can further improve the chip removal efficiency.

[0032] Furthermore, as Figure 1 , Figure 2 and Figure 3 shown, the opening width of the chip removal groove 3 is d1, and the distance between two adjacent chip removal grooves 3 is d2, where d1 is less than or equal to d2. On the premise of ensuring that the chip removal groove 3 has a sufficiently large chip removal space, it enables the tooth blade 2 to have a sufficiently large width, thus having a sufficiently high strength.

[0033] Furthermore, as Figure 1 and Figure 3 shown, the width of the blade mounting groove 4 gradually decreases from one end close to the saw blade substrate 1 to the other end. The shape of the mounting groove 4 is similar to an L shape, and the blade mounting groove is connected to the chip removal groove, which helps to improve the chip removal effect and reduce the risk of saw blade clogging. The blade mounting groove 4 with a gradually decreasing width helps to maintain the overall rigidity of the saw blade and reduce vibration during high-speed rotation.

[0034] Furthermore, as Figure 1 , Figure 2 and Figure 3 shown, the saw blade substrate 1 has a set of hollow holes 6, and all the hollow holes 6 are evenly arranged in a circumferential direction around the axis of the saw blade substrate 1. Such a design can reduce the weight of the saw blade, improve the heat dissipation performance of the saw blade, and help to reduce vibration and deformation of the saw blade during high-speed rotation, thus playing a role in noise reduction.

[0035] Furthermore, as Figure 1 , Figure 2 and Figure 3As shown in the figure, the axis of the saw blade substrate 1 is O, the axis of one end of the hollow hole 6 is A, and the axis of the other end is B. A is located between O and B, and A is located at one end of the hollow hole 6 facing the cutting direction. A, O, and B are arranged in a triangle. One side of the hollow hole 6 is an arc surface S2, and the other side is an arc surface S3 that protrudes from the center of the arc surface S2 towards the far side. Taking eight hollow holes 6 as an example, the eight hollow holes 6 are evenly arranged along the circumferential direction on the saw blade substrate 1, presenting a hub shape as a whole. On the premise of ensuring that the saw blade has sufficient high strength, the area of the hollow hole 6 is increased as much as possible, which can not only reduce the weight of the saw blade, but also facilitate the heat generated during the cutting process of the saw blade to dissipate to the periphery, thereby further improving the heat dissipation performance. At the same time, it can ensure that the saw blade remains balanced during rotation, help reduce the weight of the saw blade, and reduce the noise generated during the rotation of the saw blade.

[0036] Furthermore, as Figure 1 、 Figure 2 and Figure 3 shown, the saw blade substrate 1 has a shaft hole 7, the shaft hole 7 is located at the center of the saw blade substrate 1, and there are at least two limiting protrusions 8 on the hole wall of the shaft hole 7. All the limiting protrusions 8 are evenly arranged along the circumferential direction of the shaft hole 7, and there is a gap between adjacent limiting protrusions 8. The limiting protrusion 8 is clamped with the limiting groove on the side wall of the transmission shaft, which can prevent relative rotation between the saw blade substrate 1 and the transmission shaft and improve the stability of the saw blade during rotation. The limiting protrusion 8 and the saw blade substrate 1 are of an integrally formed structure, and the connection is more firm and reliable.

[0037] Furthermore, as Figure 1 、 Figure 2 and Figure 3 shown, the number of the tooth pieces 2 is an integer multiple of four. Taking the example that there are twenty-four tooth pieces 2 arranged on the saw blade substrate 1, they are evenly divided into twelve groups. The connection line of two tooth pieces 2 in the same group near one end of the blade mounting groove 4 is arranged along the radial direction of the saw blade substrate 1, so that the stability of the saw blade during use is better.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A hub structure saw blade, characterized in that: include, Saw blade base (1), A tooth piece (2), wherein the tooth piece (2) is arranged on the saw blade base (1), the number of the tooth pieces (2) is multiple, all of the tooth pieces (2) are evenly arranged along the outer circumference of the saw blade base (1), a chip removal groove (3) is left between adjacent tooth pieces (2), the tooth piece (2) has a blade mounting groove (4) and an anti-reversal protrusion (5), the blade mounting groove (4) is located on the side of the tooth piece (2) facing the cutting direction and is connected to the chip removal groove (3), the distance between the outer wall of the tooth piece (2) and the axis of the saw blade base (1) decreases linearly from one side close to the blade mounting groove (4) to the other side, and the anti-reversal protrusion (5) is arranged on the outer wall of the tooth piece (2) and is located on the side away from the blade mounting groove (4).

2. The hub structure saw blade according to claim 1, characterized in that: The outer wall of the anti-reversal protrusion (5) is an arc surface S1, and the radius of the arc surface S1 is r1, which is equal to the maximum distance between the outer wall of the tooth plate (2) and the axis of the saw blade base (1).

3. The hub structure saw blade according to claim 1, characterized in that: The chip removal groove (3) is a U-shaped groove.

4. The hub structure saw blade according to claim 1, characterized in that: The depth of the chip removal groove (3) is d, the radius of the saw blade base (1) is r, and d:r=1:6-1:

7.

5. The hub structure saw blade according to claim 1, characterized in that: The opening width of the chip removal groove (3) is d1, the spacing between two adjacent chip removal grooves (3) is d2, and d1 is less than or equal to d2.

6. The hub structure saw blade according to claim 1, characterized in that: The width of the blade mounting groove (4) gradually decreases from one end close to the saw blade base (1) to the other end.

7. The hub structure saw blade according to claim 1, characterized in that: The saw blade base (1) has a group of hollow holes (6), and all of the hollow holes (6) are evenly arranged in a circumferential direction around the axis of the saw blade base (1).

8. The hub structure saw blade according to claim 7, characterized in that: The axis of the saw blade base (1) is O, the axis of one end of the hollow hole (6) is A, and the axis of the other end is B, A is located between O and B, and A is located at the end of the hollow hole (6) facing the cutting direction, A, O and B are arranged in a triangle, one side of the hollow hole (6) is an arc surface S2, and the other side is an arc surface S3 that bulges in the middle away from the center of the arc surface S2.

9. The hub structure saw blade according to claim 1, characterized in that: The saw blade base (1) has an axial hole (7), the axial hole (7) is located at the center of the saw blade base (1), and the hole wall of the axial hole (7) has at least two limiting protrusions (8), all of the limiting protrusions (8) are evenly arranged along the circumferential direction of the axial hole (7), and gaps are left between adjacent limiting protrusions (8).

10. The hub structure saw blade according to claim 1, characterized in that: The number of the tooth plates (2) is an integer multiple of four.

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