A saw blade that is easy to assemble

Abstract

This utility model relates to the field of saw blade technology and discloses a saw blade that is easy to assemble, including a lead screw that passes through and is rotatably connected to a cavity; an insert block that is threaded to the outside of the lead screw and slidably connected to the lower cavity; and slots that are symmetrically opened on the outer wall of the mounting shaft, with the slots and grooves communicating with each other. First, the saw blade is fitted onto the outside of the mounting shaft, and then the fixing block is slid into the outside of the mounting shaft. When the protrusion inside the fixing block slides into the groove, and when the protrusion inside the fixing block abuts against the inner end of the groove, the outer wall of the fixing block abuts against the saw blade, and the insert block is located above the slot. The operator then uses a screwdriver to turn the cross groove on the knob, which drives the first bevel gear to rotate. The first bevel gear rotates in conjunction with the second bevel gear that meshes with it, and the lead screw at the bottom of the second bevel gear rotates accordingly. The insert block is gradually inserted into the slot, limiting the fixing block, thereby completing the assembly of the saw blade.

Description

Technical Field

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

[0002] Saw blades are a general term for thin, circular cutting tools used to cut solid materials. Saw blades can be divided into: diamond saw blades for stone cutting; high-speed steel saw blades (without carbide tips) for metal cutting; and carbide saw blades for cutting solid wood, furniture, engineered wood, aluminum alloys, aluminum profiles, radiators, plastics, and PVC.

[0003] Most existing saw blades are assembled using bolts, but small parts such as bolts are easily lost during assembly and disassembly, increasing maintenance costs and downtime. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a saw blade that is easy to assemble. It has the advantage of being easy to assemble and solves the problem that existing saw blades are mostly assembled with bolts, but small parts such as bolts are easily lost during assembly and disassembly, increasing maintenance costs and downtime.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a saw blade that is easy to assemble, comprising a main body assembly, wherein the main body assembly includes: A connecting shaft, with a mounting shaft fixedly connected to its outer side wall; The saw blade is sleeved outside the mounting shaft; A connecting component is provided on the connecting shaft and the mounting shaft, the connecting component comprising: Grooves are symmetrically formed on the outer wall of the mounting shaft; A fixing block is fitted onto the outside of the mounting shaft; A cavity is symmetrically formed inside the fixed block; A lead screw passes through and is rotatably connected within the cavity; The insert block is threaded to the outside of the lead screw, and the insert block is slidably connected to the cavity below; Slots are symmetrically formed on the outer wall of the mounting shaft, and the slots and the grooves communicate with each other; A knob is symmetrically connected to the fixed block, and the output shaft of the knob extends into the cavity above. A bevel gear one is fixedly connected to the output shaft of the knob; The second bevel gear is fixedly connected to the top of the lead screw and meshes with the first bevel gear.

[0006] Preferably, a positioning block is fixedly connected to the outer wall of the connecting shaft, and a positioning through groove is provided on the saw blade.

[0007] Preferably, the outer wall of the insert block is symmetrically and fixedly connected with a slider, and the fixed block is symmetrically provided with a sliding groove, and the slider is slidably connected in the sliding groove.

[0008] Preferably, multiple sets of positioning blocks and positioning slots are symmetrically formed.

[0009] Preferably, a guide groove is provided on the outer wall of the mounting shaft, and a guide block is fixedly connected to the inner side of the saw blade, with the guide block slidably connected within the guide groove.

[0010] (III) Beneficial Effects Compared with the prior art, this utility model provides a saw blade that is easy to assemble and has the following beneficial effects: This saw blade features easy assembly. First, the saw blade is fitted onto the outside of the mounting shaft. Then, the fixing block is slid into the outside of the mounting shaft. When the internal protrusion of the fixing block slides within the groove, and when the internal protrusion abuts against the inner end of the groove, the outer wall of the fixing block abuts against the saw blade. The insert block is positioned above the slot. The operator then uses a screwdriver to turn the cross-shaped groove on the knob. The knob drives the first bevel gear to rotate, which in turn drives the second bevel gear meshing with it. The lead screw at the bottom of the second bevel gear then rotates, gradually inserting the insert block into the slot and limiting the fixing block's position, thus completing the saw blade assembly. This solves the problem that existing saw blades are mostly assembled using bolts, but small parts such as bolts are easily lost during assembly and disassembly, increasing maintenance costs and downtime. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the saw blade disassembly structure in this utility model; Figure 3 This is a schematic diagram of the mounting shaft structure in this utility model; Figure 4 This is a schematic diagram of the fixing block structure in this utility model; Figure 5 This is a frontal cross-sectional view of the cavity structure in this utility model.

[0012] In the picture: 1. Main component; 11. Connecting shaft; 12. Mounting shaft; 13. Saw blade; 2. Connecting assembly; 21. Fixing block; 211. Groove; 22. Cavity; 23. Lead screw; 24. Insert block; 241. Slot; 25. Knob; 26. Bevel gear one; 27. Bevel gear two; 3. Slider; 31. Slide groove; 4. Positioning block; 41. Positioning through groove; 5. Guide block; 51. Guide groove. Detailed Implementation

[0013] 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.

[0014] Example 1 See Figure 1-5 A saw blade that is easy to assemble includes a main body assembly 1, which includes: a connecting shaft 11, to which a mounting shaft 12 is fixedly connected; a saw blade 13, which is sleeved on the outside of the mounting shaft 12; a connecting assembly 2 is provided on the connecting shaft 11 and the mounting shaft 12, the connecting assembly 2 including: grooves 211 symmetrically formed on the outside of the mounting shaft 12; a fixing block 21 sleeved on the outside of the mounting shaft 12; cavities 22 symmetrically formed inside the fixing block 21; and a lead screw 23 that passes through and is rotatably connected to the cavity 22. The saw blade 13 has the following internal components: an insert 24 threaded to the outside of the lead screw 23 and slidably connected to the lower cavity 22; a slot 241 symmetrically formed on the outer wall of the mounting shaft 12, communicating with the groove 211; a knob 25 symmetrically rotatably connected to the fixing block 21, with its output shaft extending into the upper cavity 22; a first bevel gear 26 fixedly connected to the output shaft of the knob 25; and a second bevel gear 27 fixedly connected to the top of the lead screw 23 and meshing with the first bevel gear 26. A positioning block 4 is fixedly connected to the outer wall of the connecting shaft 11, and a positioning through groove 41 is formed on the saw blade 13. A slider 3 is symmetrically and fixedly connected to the outer wall of the insert 24, and a sliding groove 31 is symmetrically formed inside the fixing block 21, with the slider 3 slidably connected within the sliding groove 31.

[0015] When the saw blade 13 needs to be installed, the worker first places the saw blade 13 on the outside of the mounting shaft 12, and then slides the fixing block 21 into the outside of the mounting shaft 12. When the protrusion inside the fixing block 21 slides in the groove 211, and when the protrusion inside the fixing block 21 abuts against the inner end of the groove 211, the outer wall of the fixing block 21 abuts against the saw blade 13. The insert block 24 is located above the slot 241. The worker then uses a screwdriver to turn the cross groove on the knob 25. The knob 25 drives the bevel gear 1 26 to rotate. The bevel gear 1 26 rotates in conjunction with the bevel gear 27 that meshes with it. The lead screw 23 at the bottom of the bevel gear 27 then rotates. The insert block 24 is gradually inserted into the slot 241, limiting the fixing block 21, thereby completing the assembly of the saw blade 13. When the saw blade 13 needs to be removed, the operator uses a screwdriver to reverse the knob 25, causing the insert 24 to detach from the slot 241. At this point, the fixing block 21 and the saw blade 13 can be removed from the mounting shaft 12 in sequence, facilitating the replacement of the saw blade 13. When assembling the saw blade 13, the operator places the positioning slot 41 over the positioning block 4. The positioning block 4 and the positioning slot 41 ensure the coaxiality of the saw blade 13 and the connecting shaft 11, preventing the saw blade 13 from being installed crookedly, reducing vibration and eccentric wear during high-speed rotation, and preventing the saw blade 13 from slipping relative to the connecting rod, thus ensuring cutting efficiency and safety. When the insert 24 moves, the outer slider 3 slides within the groove 31. The slider 3 and the groove 31 guide the insert 24, increasing its stability when inserted into the slot 241 and preventing the insert 24 from detaching entirely from the cavity 22, which would affect the normal limiting effect on the fixing block 21.

[0016] The power input end of the aforementioned connecting shaft 11 is directly connected to the "power source transmission assembly" of the equipment. The connection object can be the output shaft of the motor, the output end of the gearbox, the pulley or sprocket, etc. The purpose is to transmit the power of the motor or engine to the saw blade 13 and drive the saw blade 13 to rotate and cut.

[0017] Example 2 An auxiliary function has been added based on Embodiment 1.

[0018] See Figure 1-5 The positioning blocks 4 and the positioning slots 41 are symmetrically arranged in multiple sets. The outer wall of the mounting shaft 12 is provided with a guide groove 51, and the inner side of the saw blade 13 is fixedly connected to a guide block 5, which is slidably connected in the guide groove 51.

[0019] Multiple sets of positioning blocks 4 and positioning slots 41 can evenly distribute torque to each set, reducing the load on individual structures and extending service life. Before installing the saw blade 13, the operator slides the guide block 5 into the guide slot 51, so that the guide block 5 and the guide slot 51 can be quickly aligned during assembly. With multiple sets of positioning blocks 4 and positioning slots 41, the time for alignment trial and error is reduced, and the assembly efficiency is improved.

[0020] 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 saw blade that is easy to assemble, comprising a main body assembly (1), said main body assembly (1) comprising: A connecting shaft (11) has an mounting shaft (12) fixedly connected to its outer side wall; The saw blade (13) is sleeved on the outside of the mounting shaft (12); The feature is that a connecting component (2) is provided on the connecting shaft (11) and the mounting shaft (12), and the connecting component (2) includes: Grooves (211) are symmetrically formed on the outer side wall of the mounting shaft (12); A fixing block (21) is fitted onto the outside of the mounting shaft (12); Cavities (22) are symmetrically formed inside the fixed blocks (21); A lead screw (23) passes through and is rotatably connected to the cavity (22); Insert (24) is threaded to the outside of the lead screw (23), and the insert (24) is slidably connected to the cavity (22) below; Slots (241) are symmetrically opened on the outer wall of the mounting shaft (12), and the slots (241) and the grooves (211) are interconnected; A knob (25) is symmetrically connected to the fixed block (21) and the output shaft of the knob (25) extends into the cavity (22) above. A bevel gear (26) is fixedly connected to the output shaft of the knob (25); The second bevel gear (27) is fixedly connected to the top of the lead screw (23) and meshes with the first bevel gear (26).

2. The saw blade for easy assembly according to claim 1, characterized in that: The outer wall of the connecting shaft (11) is fixedly connected to a positioning block (4), and the saw blade (13) is provided with a positioning through groove (41).

3. The saw blade for easy assembly according to claim 2, characterized in that: The outer wall of the insert (24) is symmetrically connected to a slider (3), and the fixed block (21) is symmetrically provided with a groove (31), and the slider (3) is slidably connected in the groove (31).

4. The saw blade for easy assembly according to claim 3, characterized in that: The positioning block (4) and the positioning through slot (41) are symmetrically opened in multiple sets.

5. A saw blade that is easy to assemble according to claim 4, characterized in that: The outer wall of the mounting shaft (12) is provided with a guide groove (51), and the inner side of the saw blade (13) is fixedly connected with a guide block (5), which is slidably connected in the guide groove (51).

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