A high-strength impact-resistant circular saw blade

Abstract

The utility model discloses a kind of high-strength impact-resistant circular saw blade, including main body disc and ring saw blade, the outside of the main body disc is equipped with ring saw blade, the middle part of the main body disc is fixedly connected with shaft cylinder, the both ends outside of the shaft cylinder are all equipped with connecting ring, the outside of the connecting ring is all fixedly connected with support plate, the main body disc and ring saw blade are limited in the clearance between two support plates, and the shaft cylinder and connecting ring are connected by clamping structure, two support plates are clamped from both sides main body disc and ring saw blade, form rigid frame, significantly resist lateral impact and vibration, and the projection of main body disc and the recess of ring saw blade are closely embedded, shear force when torque transmission is dispersed, prevent ring saw blade from slipping or breaking when high-speed rotation, improve reliability, when assembling, axial push into connecting ring, inclined plane automatic compression elastic plate, limit portion and connecting ring are dislocated after elastic plate recovery, limit portion directly clamps connecting ring, without bolt.

Description

Technical Field

[0001] This utility model relates to the field of saw blade technology, and in particular to a high-strength, impact-resistant circular saw blade. Background Technology

[0002] Circular saw blades are mainly used for cutting low-hardness carbon steel and non-ferrous metal bars and pipes;

[0003] Chinese Patent Publication No. CN222059023U discloses a high-strength cold-cut circular saw blade, relating to the field of circular saw blades. It includes a main disc and a ring saw blade, with the ring saw blade sleeved on the outside of the main disc. Several sets of saw blades are fixedly connected at equal intervals on the outside of the ring saw blade, and four sets of connecting plates are fixedly connected at equal intervals on the inside of the ring saw blade. Four sets of upper connecting plates are fixedly connected at equal intervals on the outer side of the main disc, located at its upper edge, and four sets of lower connecting plates are fixedly connected at equal intervals on the outer side of the main disc, located at its lower edge. Two sets of connecting slide rods are fixedly connected to each of the four sets of upper and four sets of lower connecting plates. The advantages of this invention are: it enables convenient disassembly of the cooled circular saw blade, allowing for replacement of damaged saw blades without discarding the entire circular saw blade, thus saving costs and providing excellent cooling effect.

[0004] In the above-mentioned technology, the ring saw blade and the main disc need to be connected by multiple bolt fastening structures. The bolt fixing structure is prone to loosening under continuous vibration conditions, requiring frequent maintenance and posing a risk of loosening. Moreover, replacing the saw blade requires disassembling multiple sets of bolt fixing structures, making the operation cumbersome. Therefore, this utility model discloses a high-strength impact-resistant circular saw blade to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a high-strength, impact-resistant circular saw blade to solve the technical problems mentioned in the background art, such as the need for multiple bolt fastening structures to connect the ring saw blade and the main disc of the traditional detachable circular saw blade, the bolt fixing structure being prone to loosening under continuous vibration conditions, requiring frequent maintenance, posing a risk of loosening, and the need to disassemble multiple sets of bolt fixing structures to replace the saw blade, resulting in cumbersome operation steps.

[0006] To achieve the above objectives, the present invention provides the following solution to the aforementioned technical problems: a high-strength, impact-resistant circular saw blade, comprising a main disc and a ring saw blade, wherein the ring saw blade is sleeved on the outer side of the main disc, a shaft cylinder is fixedly connected to the middle of the main disc, connecting rings are sleeved on the outer sides of both ends of the shaft cylinder, and support plates are fixedly connected to the outer sides of the connecting rings, the main disc and the ring saw blade are confined within the gap between the two support plates, and the shaft cylinder and the connecting rings are connected by a snap-fit ​​structure.

[0007] As a further embodiment of this utility model, the outer edge of the main disc is provided with multiple protrusions, and the inner edge of the ring saw blade is provided with multiple grooves, the protrusions and grooves being adapted to each other.

[0008] As a further embodiment of this utility model, the snap-fit ​​structure includes a notch located on the side wall of the shaft cylinder, and a spring plate is fixedly connected to the end wall of the notch. The free ends of the spring plates all extend outward to form a limiting part, and the limiting part is provided with an inclined surface on the side away from the main body disk.

[0009] As a further embodiment of this utility model, the distance between the limiting part and the main body disk is consistent with the thickness of the connecting ring.

[0010] As a further embodiment of this utility model, the thickness of the main disc and the ring saw blade are the same, and the main disc and the ring saw blade are located in the same plane.

[0011] As a further embodiment of this utility model, a number of saw blades are fixedly connected at equal intervals on the outer side of the ring saw blade.

[0012] As a further embodiment of this utility model, a through groove is provided at the center of the shaft cylinder, and a recessed groove is formed on one side of the through groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model provides a high-strength, impact-resistant circular saw blade. Two support plates clamp the main body disc and the ring saw blade from both sides to form a rigid frame, which significantly resists lateral impacts and vibrations. Furthermore, the protrusions of the main body disc are tightly fitted with the grooves of the ring saw blade, dispersing the shearing force during torque transmission and preventing the ring saw blade from slipping or breaking during high-speed rotation, thus improving reliability.

[0015] 2. The high-strength, impact-resistant circular saw blade of this utility model, when assembled, is axially pushed into the connecting ring, the inclined surface automatically compresses the spring plate, and after the limiting part is misaligned with the connecting ring, the spring plate returns to its original position, and the limiting part directly locks the connecting ring, eliminating the need for bolts, avoiding the risk of loosening due to vibration in traditional threaded connections, and improving disassembly and assembly efficiency. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a cross-sectional view of the structure of a high-strength, impact-resistant circular saw blade according to this utility model;

[0018] Figure 2 This is a side view of a high-strength, impact-resistant circular saw blade according to the present invention.

[0019] Figure 3 This is a structural diagram of the main disc in a high-strength, impact-resistant circular saw blade according to this utility model;

[0020] Figure 4 This is a structural diagram of the ring saw blade in a high-strength, impact-resistant circular saw blade according to this utility model.

[0021] The components represented by each number in the attached diagram are listed below: 1. Main disc; 2. Ring saw blade; 3. Shaft cylinder; 4. Connecting ring; 5. Support plate; 6. Snap-fit ​​structure; 11. Protrusion; 21. Groove; 22. Saw blade; 31. Recessed groove; 61. Notch; 62. Spring plate; 63. Limiting part; 64. Bevel. Detailed Implementation

[0022] The present invention will be further described below with reference to the embodiments.

[0023] Please see Figure 1-4 This utility model provides a high-strength, impact-resistant circular saw blade, including a main disc 1 and a ring saw blade 2. The ring saw blade 2 is sleeved on the outer side of the main disc 1. The outer edge of the main disc 1 is provided with a plurality of protrusions 11, and the inner edge of the ring saw blade 2 is provided with a plurality of grooves 21. The protrusions 11 and the grooves 21 are adapted to each other.

[0024] Specifically, the protrusion 11 of the main disc 1 is tightly fitted with the groove 21 of the ring saw blade 2, which disperses the shearing force during torque transmission and prevents the ring saw blade 2 from slipping or breaking during high-speed rotation.

[0025] Furthermore, a number of saw blades 22 are fixedly connected at equal intervals on the outer side of the ring saw blade 2;

[0026] Specifically, the saw blades 22 are evenly distributed to ensure uniform transmission of cutting force. Each group can contain 6 cutting teeth, which are welded to the outer edge of the ring saw blade 2. Heat dissipation grooves are provided between adjacent groups to reduce deformation stress. It is worth noting that the ring saw blade 2 is preferably made of SK5 high carbon steel.

[0027] Furthermore, a shaft cylinder 3 is fixedly connected to the middle of the main body disk 1, and a through groove is provided in the center of the shaft cylinder 3, with a recessed groove 31 formed on one side of the through groove;

[0028] Specifically, the recessed groove 31 can engage with the key on the splined shaft to prevent relative rotation between the saw blade and the splined shaft, thus ensuring the reliability of torque transmission.

[0029] Furthermore, connecting rings 4 are sleeved on the outer sides of both ends of the shaft cylinder 3, and support plates 5 are fixedly connected to the outer sides of the connecting rings 4. The main body disk 1 and the ring saw blade 2 are limited in the gap between the two support plates 5. The thickness of the main body disk 1 and the ring saw blade 2 is the same, and the main body disk 1 and the ring saw blade 2 are located in the same plane.

[0030] Specifically, consistent thickness ensures that both the main disc 1 and the ring saw blade 2 are in close contact with the support plate 5, thereby enabling the support plate 5 to achieve better support effect.

[0031] Furthermore, the shaft cylinder 3 and the connecting ring 4 are connected by a snap-fit ​​structure 6. The snap-fit ​​structure 6 includes a notch 61 located on the side wall of the shaft cylinder 3. A spring plate 62 is fixedly connected to the end wall of the notch 61. The free ends of the spring plate 62 extend outward to form a limiting part 63, and the limiting part 63 is provided with an inclined surface 64 on the side away from the main body disk 1.

[0032] Specifically, the connecting ring 4 is nested on the outside of the shaft cylinder 3. During this process, the connecting ring 4 first squeezes the inclined surface 64, causing the spring plate 62 to deform to a certain extent. After the limiting part 63 passes through the connecting ring 4, the spring plate 62 recovers under its own elastic force. The limiting part 63 can prevent the connecting ring 4 from coming out, so that the support plate 5 keeps pressing the main body disk 1 and the ring saw blade 2.

[0033] Furthermore, the distance between the limiting part 63 and the main body disk 1 is consistent with the thickness of the connecting ring 4;

[0034] Specifically, since a support plate 5 is fixed to the outer side of one end of the connecting ring 4, the limiting part 63 is limited by the main body plate 1, which can ensure that the support plate 5 applies a rigid clamping force to the ring saw blade 2 after assembly, and can completely eliminate the axial movement of the support plate 5 and the ring saw blade 2.

[0035] Working principle:

[0036] During assembly, first align the protrusion 11 with the groove 21, then insert the main body disk 1 into the connecting ring 4. After that, nest the connecting ring 4 on the outside of the shaft cylinder 3. During this process, the connecting ring 4 first presses the inclined surface 64, causing the spring plate 62 to deform to a certain extent until the limiting part 63 passes through the connecting ring 4. Then, the spring plate 62 returns to its original state under its own elastic force. The limiting part 63 can prevent the connecting ring 4 from falling out, so that the support plate 5 keeps pressing the main body disk 1 and the ring saw blade 2. After the saw blade 22 is worn excessively, pressing the spring plate 62 can disassemble and separate the connecting ring 4 from the shaft cylinder 3, and a new ring saw blade 2 can be replaced.

Claims

1. A high-strength, impact-resistant circular saw blade, comprising a main disc (1) and a ring saw blade (2), wherein the ring saw blade (2) is sleeved on the outer side of the main disc (1), and a shaft cylinder (3) is fixedly connected to the middle of the main disc (1), characterized in that, Both ends of the shaft cylinder (3) are fitted with connecting rings (4), and the outer sides of the connecting rings (4) are fixedly connected with support plates (5). The main body disc (1) and the ring saw blade (2) are limited in the gap between the two support plates (5), and the shaft cylinder (3) and the connecting rings (4) are connected by a snap-fit ​​structure (6).

2. The high-strength, impact-resistant circular saw blade according to claim 1, characterized in that: The outer edge of the main disc (1) is provided with a plurality of protrusions (11), and the inner edge of the ring saw blade (2) is provided with a plurality of grooves (21), the protrusions (11) and the grooves (21) being adapted to each other.

3. The high-strength, impact-resistant circular saw blade according to claim 1, characterized in that: The snap-fit ​​structure (6) includes a notch (61) on the side wall of the shaft cylinder (3). A spring plate (62) is fixedly connected to the end wall of the notch (61). The free ends of the spring plate (62) extend outward to form a limiting part (63). The limiting part (63) is provided with a slope (64) on the side away from the main body disk (1).

4. A high-strength, impact-resistant circular saw blade according to claim 3, characterized in that: The distance between the limiting part (63) and the main plate (1) is consistent with the thickness of the connecting ring (4).

5. A high-strength, impact-resistant circular saw blade according to claim 1, characterized in that: The thickness of the main disc (1) and the ring saw blade (2) is the same, and the main disc (1) and the ring saw blade (2) are located in the same plane.

6. A high-strength, impact-resistant circular saw blade according to claim 1, characterized in that: Several sets of saw blades (22) are fixedly connected at equal intervals on the outer side of the ring saw blade (2).

7. A high-strength, impact-resistant circular saw blade according to claim 1, characterized in that: The shaft (3) has a through groove at its center, and a recessed groove (31) is formed on one side of the through groove.

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