A disc saw blade

Abstract

The utility model relates to saw blade technical field discloses a disc saw blade, including disc saw blade body, the disc saw blade body is hollow ring -like saw blade, and the inner wall along annular track evenly distributed has inner ring gear, disc saw blade body both sides are separately provided with upper cover and lower cover, the clearance of upper cover and lower cover is greater than the thickness of the inner ring gear of disc saw blade body, the inner ring gear of disc saw blade body is engaged with driving wheel, and the pivot of driving wheel and the central axis of disc saw blade body do not coincide. This disc saw blade, possess can realize cutting depth of shallow degree greater than saw blade radius, increased the cutting depth, and the sawtooth stress is even, and eccentric vibration is not easy to produce.

Description

Technical Field

[0001] This utility model relates to the field of saw blade technology, specifically a circular saw blade. Background Technology

[0002] A circular saw is a toothed tool used to cut materials. It is usually a thin steel disc saw with teeth on the circumference of the disc. The saw disc rotates on a spindle to cut materials. There are many types of circular saws, including electric circular saws and high-precision metal circular saws. An electric circular saw is a tool that uses a single-phase series-wound electric motor as power and drives the circular saw blade through a transmission mechanism to perform sawing operations. It is suitable for cutting materials such as wood, fiberboard, plastics and flexible cables.

[0003] Existing circular saws have certain limitations in practical applications. Because the cutting depth of existing saw blades is affected by the saw blade radius, when the thickness of the workpiece to be cut exceeds the radius of the circular saw, it is necessary to replace it with a larger saw blade and match it with a power unit with a larger input power. This not only increases the complexity of operation, but may also lead to increased equipment costs and reduced efficiency. Therefore, a circular saw blade is proposed to solve the above-mentioned problems. Utility Model Content

[0004] Because the cutting depth of existing saw blades is limited by the saw blade radius, when the thickness of the workpiece to be cut exceeds the radius of the circular saw, a larger saw blade must be used, along with a power unit with higher input power. This not only increases the complexity of operation but may also lead to increased equipment costs and reduced efficiency. To address the shortcomings of existing technology, this utility model provides a circular saw blade.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A circular saw blade includes a circular saw blade body, which is a hollow, annular saw blade with inner ring gears evenly distributed along an annular trajectory on its inner wall. The center of the base circle of the inner ring gears coincides with the rotation center of the circular saw blade body. An upper cover plate and a lower cover plate are respectively provided on both sides of the circular saw blade body. The diameters of the upper and lower cover plates are both larger than the inner wall diameter of the circular saw blade body and smaller than the outer wall diameter, such that the inner ring gears of the circular saw blade body are housed in the gap between the upper and lower cover plates, while the outer wall teeth of the circular saw blade body are exposed on the upper and lower cover plates. The upper and lower cover plates are fixedly arranged, and the gap between the upper and lower cover plates is greater than the thickness of the inner ring gears of the circular saw blade body. The inner ring gears of the circular saw blade body mesh with a drive wheel, and the rotation axis of the drive wheel does not coincide with the central axis of the circular saw blade body.

[0006] The drive wheel is mounted on the lower cover plate and drives the circular saw blade body to rotate.

[0007] At least two guide wheels are rotatably arranged between the upper cover plate and the lower cover plate; the outer wall of the guide wheel is in contact with the inner ring gear of the circular saw blade body; A circular saw blade further includes a column, which is fixedly installed on an upper cover plate and a lower cover plate, and a guide wheel is rotatably connected to the outer side of the column via an auxiliary ball bearing.

[0008] A circular saw blade further includes a fixed support plate; the fixed support plate is fixedly installed on an upper cover plate and a lower cover plate; the outer wall of the fixed support plate has a notch for accommodating a guide wheel and a drive wheel.

[0009] The upper cover plate and / or the lower cover plate are provided with a first oil inlet hole on their outer side; the fixed support plate is provided with a first oil passage communicating with the first oil inlet hole on its outer side, and the end of the first oil passage points to the guide wheel.

[0010] The upper cover plate and / or the lower cover plate are provided with a second oil inlet hole on their outer side, and the fixed support plate is provided with a second oil passage communicating with the second oil inlet hole on its outer side, with the end of the second oil passage pointing towards the drive wheel.

[0011] The upper cover plate, lower cover plate, and fixed support plate are all provided with positioning holes.

[0012] The outer side of the circular saw blade body is provided with an annular groove.

[0013] The beneficial effects of this utility model are: This circular saw blade can achieve a cutting depth greater than the saw blade radius, increasing the cutting depth, and the saw teeth are subjected to uniform force, making it less prone to eccentric vibration. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a diagram showing the connection between the auxiliary ball bearing and the guide wheel of this utility model; Figure 3 This is an exploded view of the structure of this utility model; In the diagram: 1. Circular saw blade body; 2. Upper cover plate; 3. Lower cover plate; 4. Fixed support plate; 5. Inner ring gear; 6. Drive wheel; 7. Positioning hole; 8. Circular groove; 9. Column; 10. Auxiliary ball bearing; 11. Guide wheel; 12. First oil inlet hole; 13. Second oil inlet hole; 14. First oil passage. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] In the embodiments, by Figure 1-3 A circular saw blade is provided, comprising a circular saw blade body 1, an upper cover plate 2, a lower cover plate 3, and a drive wheel 6. The circular saw blade body 1 is a hollow, annular saw blade, with inner ring gears 5 evenly distributed along an annular trajectory on its inner wall. The base circle center of the inner ring gears 5 coincides with the rotation center of the circular saw blade body 1. The upper cover plate 2 and the lower cover plate 3 are respectively provided on both sides of the circular saw blade body 1. The diameters of the upper cover plate 2 and the lower cover plate 3 are both larger than the inner wall diameter of the circular saw blade body 1 and smaller than the outer wall diameter of the circular saw blade body 1, such that the inner ring gears 5 of the circular saw blade body 1 are housed in the gap between the upper cover plate 2 and the lower cover plate 3, and the saw teeth of the outer wall of the circular saw blade body 1 are exposed on the upper cover plate 2 and the lower cover plate 3.

[0017] The upper cover plate 2 and the lower cover plate 3 are fixedly installed, for example, by spot welding or riveting, or by other similar fixing methods. Because the upper cover plate 2 and the lower cover plate 3 are fixedly installed, the gap between the upper cover plate 2 and the lower cover plate 3 is constant, and the gap between the upper cover plate 2 and the lower cover plate 3 is greater than the thickness of the inner ring gear 5 of the circular saw blade body 1, so as to reserve sufficient space for the circular saw blade body 1 to rotate between the upper cover plate 2 and the lower cover plate 3.

[0018] The drive wheel 6 passes through the lower cover plate 3 and meshes with the inner ring gear 5 of the circular saw blade body 1. The drive wheel 6 is externally connected to a drive mechanism (such as a motor). After the drive wheel 6 rotates, it drives the circular saw blade body 1 to rotate, thereby achieving the cutting effect.

[0019] At least two guide wheels 11 are rotatably arranged between the upper cover plate 2 and the lower cover plate 3. The outer wall of the guide wheel 11 is in contact with the inner ring gear 5 of the circular saw blade body 1. When the circular saw blade body 1 rotates, it acts as a planetary gear, which can stabilize the circular saw blade and prevent it from jumping. Preferably, the outer wall of the guide wheel 11 in this solution is smooth instead of a gear, so as to avoid vibration caused by gear wear, and at the same time reduce the friction between the circular saw blade body 1 and the guide wheel 11, thereby improving the stability and service life of the equipment. Preferably, three guide wheels 11 are rotatably arranged between the upper cover plate 2 and the lower cover plate 3. Preferably, a column 9 is riveted between the upper cover plate 2 and the lower cover plate 3, and the outer side of the column 9 is rotatably connected to the guide wheel 11 through multiple auxiliary balls 10. The guide wheel 11 and the auxiliary balls 10 form a bearing-like structure. The setting of the auxiliary balls 10 reduces the friction between the guide wheel 11 and the column 9, so that the guide wheel 11 can rotate more flexibly, thereby ensuring the stable operation of the saw blade.

[0020] Since the shaft of the drive wheel 6 and the central axis of the circular saw blade body 1 do not coincide, an eccentric structure is formed. When the upper cover plate 2 and the lower cover plate 3 are fixed to the cutting machine at the end closest to the drive wheel 6, the ends of the upper cover plate 2 and the lower cover plate 3 away from the drive wheel 6 can be exposed to the cutting machine. The rotation center of the circular saw blade body 1 can also be exposed to the cutting machine, so that the maximum cutting depth of the circular saw blade body 1 can be greater than the radius of the circular saw blade body 1.

[0021] A fixed support plate 4 is fixedly installed between the upper cover plate 2 and the lower cover plate 3. As one fixing method, the three are connected as a whole by spot welding and riveting. The spot welding and riveting sequence is as follows: first, the lower cover plate 3 and the fixed support plate 4 are spot welded and riveted in a centrally symmetrical manner; then, the circular saw blade body 1 is fitted onto the outside of the fixed support plate 3; finally, the upper cover plate 2 is spot welded and riveted onto the outside of the fixed support plate 3 to form a stable external support structure for the circular saw blade body 1. Alternatively, screws are passed through the lower cover plate 3, the fixed support plate 4, and the upper cover plate 2 in sequence and then secured with nuts. Of course, other similar fixing methods can also be used to fix the upper cover plate 2, the lower cover plate 3, and the fixed support plate 4 as a whole. The outer wall of the fixed support plate 4 has a notch for accommodating the guide wheel 11 and the drive wheel 6. Preferably, the thickness of the fixed support plate 4 is greater than the thickness of the circular saw blade body 1. This creates sufficient space between the upper cover plate 2 and the lower cover plate 3, allowing the circular saw blade body 1 to rotate freely within it. This reduces frictional resistance between the blade and the upper and lower cover plates 2 and 3, ensuring smooth rotation of the circular saw blade body 1. Preferably, the column 9 can be a screw, which passes through the lower cover plate 3, the notch of the fixed support plate 4, the guide wheel 11, and the upper cover plate 2 in sequence, and is then secured with a nut.

[0022] Furthermore, a first oil inlet hole 12 is provided on the outer side of the upper cover plate 2 and / or the lower cover plate 3; a first oil passage 14 communicating with the first oil inlet hole 12 is provided on the outer side of the fixed support plate 4, and the end of the first oil passage 14 points towards the guide wheel 11. A second oil inlet hole 13 is provided on the outer side of the upper cover plate 2 and / or the lower cover plate 3, and a second oil passage communicating with the second oil inlet hole 13 is provided on the outer side of the fixed support plate 4, and the end of the second oil passage points towards the drive wheel 6. The setting of the oil inlet hole and the oil passage provides good lubrication for the internal components of the saw blade, reduces friction and wear between components, and the flow of lubricating oil can also carry away some heat, achieving a heat dissipation effect, thereby improving the performance and service life of the saw blade. The oil inlet hole (including the first oil inlet hole 12 and the second oil inlet hole 13) can be set on only one side of the cover plate (upper cover plate 2 or lower cover plate 3) to form a unidirectional oil passage, or both can be set on both side cover plates (upper cover plate 2 and lower cover plate 3) to form two oil inlet passages.

[0023] The upper cover plate 2, lower cover plate 3, and fixed support plate 4 are all provided with positioning holes 7, which are used to position and install the circular saw blade with the cutting machine. For example, screws are passed through the lower cover plate 3, fixed support plate 4, upper cover plate 2, and the outer casing of the cutting machine in sequence, and then fixed with nuts, thereby allowing the mechanism to be installed on the cutting machine. Preferably, the positioning holes 7 are located between the drive wheel 6 and the rotation center of the circular saw blade body 1.

[0024] A circular groove 8 is provided on the outer side of the circular saw blade body 1.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A circular saw blade, comprising a circular saw blade body (1), characterized in that: The circular saw blade body (1) is a hollow, annular saw blade with inner ring gears (5) evenly distributed along an annular trajectory on its inner wall. The center of the base circle of the inner ring gears (5) coincides with the rotation center of the circular saw blade body (1). The circular saw blade body (1) has an upper cover plate (2) and a lower cover plate (3) on both sides. The diameters of the upper cover plate (2) and the lower cover plate (3) are both larger than the inner wall diameter of the circular saw blade body (1) and smaller than the outer wall diameter of the circular saw blade body (1), so that the inner ring of the circular saw blade body (1) is... The gear (5) is housed in the gap between the upper cover plate (2) and the lower cover plate (3), and the outer wall teeth of the circular saw blade body (1) are exposed on the upper cover plate (2) and the lower cover plate (3); the upper cover plate (2) and the lower cover plate (3) are fixedly installed, and the gap between the upper cover plate (2) and the lower cover plate (3) is greater than the thickness of the inner ring gear (5) of the circular saw blade body (1); the inner ring gear (5) of the circular saw blade body (1) is engaged with the drive wheel (6), and the shaft of the drive wheel (6) and the central axis of the circular saw blade body (1) do not coincide.

2. A circular saw blade according to claim 1, characterized in that: The drive wheel (6) passes through the lower cover plate (3) and drives the circular saw blade body (1) to rotate.

3. A circular saw blade according to claim 1, characterized in that: At least two guide wheels (11) are rotatably arranged between the upper cover plate (2) and the lower cover plate (3); the outer wall of the guide wheel (11) is in contact with the inner ring gear (5) of the circular saw blade body (1).

4. A circular saw blade according to claim 3, characterized in that: It also includes a column (9), which is fixedly installed on the upper cover plate (2) and the lower cover plate (3). The outer side of the column (9) is rotatably connected to a guide wheel (11) via an auxiliary ball bearing (10).

5. A circular saw blade according to claim 3, characterized in that: It also includes a fixed support plate (4); the fixed support plate (4) is fixedly installed on the upper cover plate (2) and the lower cover plate (3); the outer wall of the fixed support plate (4) has a notch for accommodating the guide wheel (11) and the drive wheel (6).

6. A circular saw blade according to claim 5, characterized in that: The upper cover plate (2) and / or the lower cover plate (3) are provided with a first oil inlet hole (12) on the outside; the fixed support plate (4) is provided with a first oil passage (14) that communicates with the first oil inlet hole (12) on the outside, and the end of the first oil passage (14) points to the guide wheel (11).

7. A circular saw blade according to claim 5 or 6, characterized in that: The upper cover plate (2) and / or the lower cover plate (3) are provided with a second oil inlet hole (13) on the outside, and the fixed support plate (4) is provided with a second oil passage communicating with the second oil inlet hole (13) on the outside, and the end of the second oil passage points to the drive wheel (6).

8. A circular saw blade according to claim 7, characterized in that: The upper cover plate (2), the lower cover plate (3), and the fixed support plate (4) are all provided with positioning holes (7).

9. A circular saw blade according to claim 8, characterized in that: The outer side of the circular saw blade body (1) is provided with an annular groove (8).

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