Saw blade convenient to mount and dismount

Abstract

The utility model relates to the technical field of saw blades, in particular to a saw blade convenient to mount and dismount, which is simple in structure, adopts a split type, can directly replace part of the saw blade with damaged saw teeth, and does not enable an output shaft of a cutting machine to rotate in the replacement process. Comprising a mounting ring fixed to an output shaft, a plurality of mounting grooves are formed in the outer surface of the mounting ring in a circumferential array shape, a saw blade is placed in each mounting groove, a fixing ring is fixed to one side of the mounting ring, a driving mechanism is arranged in the fixing ring, and a driving block moving in the radial direction of the mounting ring is arranged at the output end of the driving mechanism; a through hole is formed in the mounting groove and communicates with the fixing ring, a pressing plate is slidably connected into the through hole and fixedly connected with a connecting plate, a guide hole is formed in the connecting plate, and a guide shaft penetrating through the guide hole is fixed to the driving block.

Description

Technical Field

[0001] The utility model relates to the technical field of saw blades, in particular to a saw blade which is easy to install and disassemble. Background Art

[0002] Saw blades are a common cutting tool used in a variety of fields, including woodworking, metalworking, and stone cutting. They typically consist of a circular disc with a toothed edge. These teeth can be made of carbon steel, high-speed steel, or even harder materials such as tungsten steel or diamond to suit the cutting needs of materials of varying hardness.

[0003] Traditional saw blades are all one-piece. After a saw tooth is damaged, the entire saw blade needs to be replaced, which results in high costs. In addition, the traditional saw blade installation is mainly that the circular through hole in the middle of the saw blade is sleeved on the output shaft of the cutting machine. The end of the output shaft of the cutting machine is provided with an external thread, and the end of the output shaft of the cutting machine is screwed with a nut. After the saw blade is sleeved on the output shaft of the cutting machine, the output shaft of the cutting machine stops rotating while tightening the nut to abut and fix the saw blade on the output shaft of the cutting machine to complete the installation of the saw blade. When the output shaft of the cutting machine is difficult to fix, the nut will also rotate with the output shaft of the cutting machine, resulting in the inability to replace the saw blade. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a saw blade that is easy to install and disassemble. It has a simple structure and is split. The part of the saw blade with damaged teeth can be directly replaced, and the output shaft of the cutting machine will not rotate during the replacement process.

[0005] The utility model is a saw blade that is easy to install and disassemble. It includes a mounting ring fixed on the output shaft. The outer surface of the mounting ring is provided with a plurality of mounting grooves in a circumferential array. A split saw blade is placed in each mounting groove. A fixing ring is fixed to one side of the mounting ring. A driving mechanism is provided in the fixing ring. The output end of the driving mechanism is a driving block that moves radially along the mounting ring.

[0006] The mounting groove is provided with a through hole, which is communicated with the fixing ring. A pressure plate is slidably connected in the through hole, and the pressure plate is fixedly connected to a connecting plate. The connecting plate is provided with a guide hole, and the driving block is fixed with a guide shaft passing through the guide hole.

[0007] As a preferred solution of the present invention, a positioning hole is provided at one end of the saw blade extending into the installation slot, and a positioning pin passing through the positioning hole is provided on the pressure plate.

[0008] As a preferred solution of the present invention, the guide hole includes a connected inclined section and a straight section, the straight section is parallel to the moving track of the driving block, and there is an angle between the inclined section and the moving track of the driving block.

[0009] As a preferred solution of the present invention, the straight section is located below the inclined section, and the inclined section is inclined toward the saw blade at one end away from the straight section.

[0010] As a preferred solution of the present invention, the driving mechanism includes a screw rod rotating on a fixed ring, and the screw rod is threadedly connected to the driving block.

[0011] As a preferred solution of the present invention, the driving mechanism further includes an optical shaft fixed in the fixing ring, and the driving block is slidably connected to the optical shaft.

[0012] As a preferred solution of the present invention, a hexagonal groove is provided at one end of the screw rod facing outward.

[0013] As a preferred solution of the present invention, a support ring is fixed to the mounting ring.

[0014] As a preferred solution of the present invention, a cover plate is installed on the fixing ring.

[0015] As a preferred solution of the present invention, both sides of the saw blade are provided with an extension portion, and the extension portions of two adjacent saw blades are in contact.

[0016] Compared with the prior art, the beneficial effects of the present invention are: if a certain saw blade is damaged or severely worn, only this part needs to be replaced instead of the entire saw blade, which reduces maintenance costs. At the same time, when the saw blade is replaced, the rotation direction of the screw rod is different from the rotation direction of the output shaft of the cutting machine, which improves replacement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 yes Figure 1 A structural diagram from the left side perspective;

[0019] Figure 3 This is an exploded view of the split saw blade and mounting ring;

[0020] Figure 4 yes Figure 3 A partial enlarged view of part A in the middle;

[0021] Figure 5 It is a structural diagram of the pressure plate and the driving mechanism;

[0022] Figure 6 yes Figure 5 A structural diagram from the left side perspective;

[0023] Markings in the accompanying drawings: 1. Mounting ring; 2. Mounting groove; 3. Saw blade; 4. Fixed ring; 5. Driving block; 6. Through hole; 7. Pressure plate; 8. Connecting plate; 9. Positioning hole; 10. Positioning pin; 11. Inclined section; 12. Straight section; 13. Screw; 14. Optical axis; 15. Support ring; 16. Cover plate; 17. Extension part; 18. Guide shaft. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "embodiment" as used herein refers to specific features, structures, or characteristics that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0027] Example

[0028] Reference Figures 1-6 This embodiment provides a saw blade that is easy to install and disassemble, including a mounting ring 1 fixed to the output shaft, a plurality of mounting grooves 2 are opened on the outer surface of the mounting ring 1 in a circumferential array, and a saw blade 3 is placed in each mounting groove 2. A fixing ring 4 is fixed to one side of the mounting ring 1, and a driving mechanism is provided in the fixing ring 4. The output end of the driving mechanism is a driving block 5 that moves radially along the mounting ring 1. More specifically, the driving mechanism includes a screw rod 13 that rotates on the fixing ring 4, as shown in FIG. Figure 3 and Figure 4 As shown, the screw rod 13 is arranged along the radial direction of the mounting ring 1, and the screw rod 13 is threadedly connected to the driving block 5. The driving mechanism also includes an optical axis 14 fixed in the fixing ring 4, and the driving block 5 is slidably connected to the optical axis 14. A hexagonal groove is opened at one end of the screw rod 13 facing the outside, as shown in FIG. Figure 5 and Figure 6 As shown, after inserting the hexagonal handle into the hexagonal slot and rotating the screw 13, since the screw 13 is threadedly connected to the driving block 5, and the driving block 5 slides on the optical axis 14, rotating the screw 13 can move the driving block 5 and the guide shaft 18;

[0029] The mounting groove 2 is provided with a through hole 6, which is opened along the axial direction of the mounting ring 1. The through hole 6 is connected to the fixing ring 4, and the through hole 6 has the same cross-sectional shape as the inner wall of the fixing ring 4. A pressure plate 7 is slidably connected in the through hole 6. The pressure plate 7 can not only slide in the through hole 6, but also slide in the fixing ring 4. The pressure plate 7 is fixedly connected to a connecting plate 8. Figure 4 As shown, the connecting plate 8 is symmetrically provided with two pieces, the connecting plate 8 is provided with a guide hole, the driving block 5 is fixed with a guide shaft 18 passing through the guide hole, and the guide shaft 18 is also two. More specifically, the guide hole includes a connected inclined section 11 and a straight section 12, the straight section 12 is parallel to the moving trajectory of the driving block 5, and there is an angle between the inclined section 11 and the moving trajectory of the driving block 5. The straight section 12 is below the inclined section 11, and the inclined section 11 is away from the straight section 12 and is inclined toward the saw blade 3; as shown Figure 4-Figure 6 As shown, when the saw blade 3 needs to be disassembled, the screw rod 13 is rotated to move the driving block 5 and the guide shaft 18 upward, and the guide shaft 18 first passes through the straight section 12. Since the straight section 12 coincides with the moving trajectory of the driving block 5 at this time, it will not affect the position of the connecting plate 8 and the pressure plate 7. The purpose of setting the straight section 12 is to prevent the screw rod 13 from slightly rotating and affecting the clamping force during use. Then the guide shaft 18 passes through the inclined section 11. Since the inclined section 11 has an angle with the moving trajectory of the driving block 5, the straight section 12 is below the inclined section 11, and the inclined section 11 is away from the straight section. One end of the line segment 12 is inclined toward the saw blade 3, so when the block 5 and the guide shaft 18 move upward, the connecting plate 8 and the pressure plate 7 are driven away from the saw blade 3, the saw blade 3 is released, and then the saw blade can be manually pulled out. Similarly, when loading a new saw blade 3, the saw blade 3 is inserted into the mounting groove 2, and then the screw rod 13 is rotated in the opposite direction to make the pressure plate 7 press the saw blade 3. Since the screw rod 13 is arranged along the radial direction of the mounting ring 1, when the saw blade 3 is disassembled, the rotation direction of the screw rod 13 is not the same as the nut in the prior art, so the output shaft of the cutting machine will not rotate, and disassembly and assembly are more convenient.

[0030] As a preferred solution of the present invention, a positioning hole 9 is provided at one end of the saw blade 3 extending into the mounting groove 2, and a positioning pin 10 passing through the positioning hole 9 is provided on the pressure plate 7. Figure 6 As shown, the positioning pin 10 is chamfered at one end away from the pressure plate 7. Through the positioning pin 10, when the pressure plate 7 presses the saw blade 3, the positioning pin 10 extends into the positioning hole 9, thereby preventing the saw blade 3 from shaking.

[0031] As a preferred solution of the present invention, the mounting ring 1 is fixed with a support ring 15, such as Figure 1As shown, the outer diameter of the support ring 15 is slightly larger than the inner diameter of the mounting ring 1. When the entire saw blade is installed, the mounting ring 1 is mounted on the output shaft of the cutting machine, and then the nut according to the existing technology is screwed onto the output shaft of the cutting machine. The nut squeezes the support ring 15 to fix the entire saw blade.

[0032] As a preferred solution of the present invention, a cover plate 16 is installed on the fixing ring 4 to improve the operating stability of various components in the fixing ring 4.

[0033] As a preferred solution of the present invention, both sides of the saw blade 3 are provided with an extension portion 17, and the extension portions 17 of two adjacent saw blades 3 are in contact, such as Figure 2 As shown, the contact of the extended portion 17 can increase the contact area between adjacent saw blades 3, thereby improving the rigidity and stability of the overall structure and reducing deviations caused by vibration during the cutting process.

[0034] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A saw blade that is easy to install and disassemble, characterized in that: The invention comprises a mounting ring (1) fixed on the output shaft, wherein the outer surface of the mounting ring (1) is provided with a plurality of mounting grooves (2) in a circumferential array, wherein a saw blade (3) is placed in each mounting groove (2), a fixing ring (4) is fixed on one side of the mounting ring (1), a driving mechanism is arranged in the fixing ring (4), and an output end of the driving mechanism is a driving block (5) that moves radially along the mounting ring (1); The mounting groove (2) is provided with a through hole (6), the through hole (6) is communicated with the fixing ring (4), a pressure plate (7) is slidably connected in the through hole (6), the pressure plate (7) is fixedly connected with a connecting plate (8), the connecting plate (8) is provided with a guide hole, and the driving block (5) is fixed with a guide shaft (18) passing through the guide hole.

2. The saw blade that is easy to install and disassemble according to claim 1, characterized in that: A positioning hole (9) is provided at one end of the split saw blade (3) that extends into the mounting groove (2), and a positioning pin (10) that passes through the positioning hole (9) is provided on the pressure plate (7).

3. The saw blade that is easy to install and remove as claimed in claim 2, characterized in that: The guide hole comprises a connected inclined section (11) and a straight section (12); the straight section (12) is parallel to the moving track of the driving block (5); and an angle exists between the inclined section (11) and the moving track of the driving block (5).

4. The saw blade that is easy to install and remove as claimed in claim 3, characterized in that: The straight section (12) is located below the inclined section (11), and one end of the inclined section (11) away from the straight section (12) is inclined toward the saw blade (3).

5. The saw blade that is easy to install and remove as claimed in claim 1, characterized in that: The driving mechanism comprises a screw rod (13) rotating on a fixing ring (4), and the screw rod (13) is threadedly connected to a driving block (5).

6. The saw blade that is easy to install and remove as claimed in claim 5, characterized in that: The driving mechanism also includes an optical axis (14) fixed in the fixing ring (4), and the driving block (5) is slidably connected to the optical axis (14).

7. The saw blade that is easy to install and remove as claimed in claim 6, characterized in that: A hexagonal groove is formed at one end of the screw rod (13) facing outward.

8. The saw blade that is easy to install and remove as claimed in claim 1, characterized in that: The mounting ring (1) is fixed with a support ring (15).

9. The saw blade that is easy to install and remove as claimed in claim 1, characterized in that: A cover plate (16) is mounted on the fixing ring (4).

10. The saw blade that is easy to install and remove according to claim 1, characterized in that: Both sides of the split saw blade (3) are provided with an expansion portion (17), and the expansion portions (17) of two adjacent split saw blades (3) are in contact.

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