An easy-to-install explosion-proof resin cutting disc

Abstract

This utility model discloses an explosion-proof resin cutting disc that is easy to install, including an explosion-proof resin cutting disc body. By employing a limiting ring, in actual use, when the cutting disc needs to be installed, it can be directly inserted into the main shaft of the drive device through the mating hole on its surface. At this time, the cutting disc will fit against the flange on the main shaft. The operator only needs to gently push the cutting disc to rotate it around the main shaft. When the fastening hole on its surface rotates to align with the hole on the flange surface on the main shaft, the limiting ring inside the fastening hole can be inserted into the hole on the flange surface. This achieves the pre-fixation operation between the cutting disc and the flange, eliminating the need for prolonged holding to position and limit the cutting disc, reducing labor intensity, and facilitating more convenient and labor-saving installation and use. It has the advantages of convenient installation, pre-positioning fastening, and labor-saving operation.

Description

Technical Field

[0001] This utility model relates to the field of resin cutting disc technology, and more specifically, to an explosion-proof resin cutting disc that is easy to install. Background Technology

[0002] Explosion-proof resin cutting discs are cutting discs made of resin as a binder, combined with materials such as white fused alumina and brown fused alumina. They are used for cutting stainless steel pipes, capillary tubes, and glass tubes.

[0003] The existing public technology application number is CN202421474362.X, which describes an explosion-proof resin cutting disc that is easy to install. It is fixed by driving two circular clamping plates to hold the output shaft of the drive motor. Compared with the traditional explosion-proof resin cutting disc that is fixed by bolt structure, this method does not require additional tools to tighten the bolts, and it is simple to operate, fast to disassemble and assemble, and more convenient.

[0004] Based on the aforementioned patents and existing cutting discs, it is not difficult to see that existing cutting discs are generally fixed in place using bolts or screws. When fixing a cutting disc with multiple fastening holes, it is necessary to align each fastening hole individually and to hold the cutting disc for an extended period of time to ensure that the screws can be accurately inserted and fixed. This increases the labor intensity of personnel, reduces the convenience of installation, and increases the difficulty of installation, making it difficult to install, disassemble, and use. Overall, the performance is not ideal.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an explosion-proof resin cutting disc that is easy to install, has the advantages of convenient installation, pre-positioning for fastening, and labor-saving operation, thereby solving the problems mentioned in the background technology.

[0007] To achieve the advantages of convenient installation, pre-positioning for fastening, and labor-saving operation, the specific technical solution adopted by this utility model is as follows: An explosion-proof resin cutting disc that is easy to install includes an explosion-proof resin cutting disc body. A central post is installed at the middle position of the surface of the explosion-proof resin cutting disc body. A docking hole is opened inside the central post. A plurality of fastening holes are opened around the outer periphery of the docking hole on the surface of the central post. A limiting ring is provided inside the fastening hole. A limiting rod is fixedly connected to one end of the limiting ring. The limiting rod is located at the outer periphery of the fastening hole.

[0008] Furthermore, a number of limiting holes are provided around the outer periphery of the fastening hole on the surface of the central column.

[0009] Furthermore, the explosion-proof resin cutting disc body has several sets of heat dissipation holes arranged around its surface.

[0010] Furthermore, the outer surface of the explosion-proof resin cutting disc body is provided with several sets of grooves.

[0011] Furthermore, the length of the limiting ring is greater than the length of the fastening hole.

[0012] Furthermore, both the limiting ring and the limiting rod are made of plastic.

[0013] Furthermore, both the limiting ring and the limiting rod are inserted from the flange side away from the spindle surface on the external drive device.

[0014] Furthermore, the fastening hole is threaded inside.

[0015] Compared with the prior art, this utility model provides an explosion-proof resin cutting disc that is easy to install, and has the following beneficial effects: This invention employs a limiting ring. During actual use, when the cutting disc needs to be installed, it can be directly inserted into the main shaft of the drive device through the mating hole on its surface. The cutting disc will then fit against the flange on the main shaft. The operator only needs to gently push the cutting disc to rotate it around the main shaft. When the fastening hole on its surface aligns with the hole on the flange surface on the main shaft, the limiting ring inside the fastening hole can be inserted into the hole on the flange surface. This achieves pre-fixation of the cutting disc and the flange, eliminating the need for prolonged holding to position and limit the cutting disc. This effectively reduces the labor intensity of personnel and facilitates more convenient and labor-saving installation and use. It has the advantages of convenient installation, pre-positioning fastening, and labor-saving operation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an explosion-proof resin cutting disc that is easy to install, as proposed in this utility model. Figure 2 This is a schematic diagram showing the connection between the fastening hole and the limiting ring of this utility model; Figure 3 This is a schematic diagram of the limiting hole of this utility model; Figure 4This is a structural schematic diagram of the limiting ring and limiting rod of this utility model.

[0018] In the picture: 1. Explosion-proof resin cutting disc body; 2. Groove; 3. Heat dissipation hole; 4. Central column; 5. Docking hole; 6. Fastening hole; 7. Limiting ring; 8. Limiting rod; 9. Limiting hole. Detailed Implementation

[0019] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0020] According to an embodiment of the present invention, an explosion-proof resin cutting disc that is easy to install is provided.

[0021] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4As shown, an explosion-proof resin cutting disc, according to an embodiment of the present invention, is easy to install and includes an explosion-proof resin cutting disc body 1. A central column 4 is installed at the center of the surface of the explosion-proof resin cutting disc body 1. A docking hole 5 is opened inside the central column 4. A plurality of fastening holes 6 are opened around the surface of the central column 4 around the docking hole 5. A limiting ring 7 is provided inside the fastening hole 6. One end of the limiting ring 7 is fixedly connected to a limiting rod 8, which is located at the outer periphery of the fastening hole 6. The central column 4 is fixedly installed at the center of the surface of the cutting disc body to form an integral support structure. The heat dissipation holes 3 and the grooves 2 are directly machined on the surface of the cutting disc body and are integrated with the body. The explosion-proof resin cutting disc, as the core load-bearing component, is connected to the spindle of the driving device through the central column 4. The interlocking design, with its outer peripheral groove 2 and heat dissipation holes 3, enhances cutting performance and provides a working surface for cutting operations. Groove 2 increases the flexibility of the cutting disc and guides debris discharge; heat dissipation holes 3 reduce heat accumulation during cutting, preventing the resin matrix from softening due to high temperatures, improving explosion-proof performance and service life. Furthermore, it forms an installation reference with the center column 4. The groove 2 and heat dissipation holes 3 optimize cutting efficiency and indirectly assist in the stable positioning of the cutting disc during installation. The center column 4 has an interlocking hole 5 inside, which has a clearance fit with the drive equipment spindle (diameter slightly larger than the spindle) to ensure rapid insertion. Fastening holes 6 are evenly distributed around the interlocking hole 5, forming a sliding fit with the limiting ring 7 (the limiting ring 7 can move axially within the fastening hole 6). During installation, the interlocking hole 5 is aligned with the spindle for insertion, allowing the cutting disc body to... The cutting disc fits snugly against the spindle flange; rotating the disc, pre-positioned by aligning the limiting ring 7 with the flange hole; finally, it is fixed by screws passing through the threaded fastening hole 6; its function is to serve as an installation interface, transmitting spindle torque to the cutting disc body; the fastening hole 6 and the limiting ring 7 provide pre-positioning functionality, reducing manual alignment time during installation; the mating hole 5 ensures the coaxiality of the cutting disc and the spindle, and the limiting ring 7 reduces offset during screw fixing through pre-positioning, improving installation efficiency; the wall of the mating hole 5 has a smooth clearance fit with the spindle, without threads or keyways, serving only as a guide and initial positioning function. During installation, it serves as the initial installation entry point, guiding the cutting disc to quickly fit onto the spindle, reducing installation alignment difficulty; its function is to determine the axial installation position of the cutting disc and the spindle, ensuring the cutting disc... The main body fits precisely with the flange. Simultaneously, the rotation of the center column 4 provides a rotation axis for aligning the limiting ring 7 with the flange hole. Internal threads are machined into the fastening hole 6 to form a threaded connection with the fixing screw. The limiting ring 7 is inserted into the hole via a sliding fit and can move axially along the hole (the length of the limiting ring 7 is greater than the depth of the fastening hole 6, ensuring one end extends out of the hole). During installation, the limiting ring 7 is inserted into the fastening hole 6 from the side furthest from the flange, with the limiting rod 8 exposed. A rotating cutting disc aligns the limiting ring 7 with the flange hole, pushing the limiting rod 8 to insert the limiting ring 7 into the hole, achieving pre-fixing. The screw is screwed into the fastening hole 6 through the thread, passing through the limiting ring 7 (damaging the plastic material) to complete the final fixation. Function: During pre-positioning, the limiting ring 7 holds the flange in place, reducing manual support time.The threaded structure provides final tightening force, ensuring the cutting disc does not fall off under high-speed rotation; the pre-positioning function of the limiting ring 7 reduces the difficulty of alignment during screw installation, and the threaded connection provides reliable mechanical locking. The combination of these two features achieves "quick pre-positioning + secure fixing."

[0022] In one embodiment, a plurality of limiting holes 9 are formed around the outer periphery of the fastening hole 6 on the surface of the central column 4. One end of the limiting ring 7 is fixedly connected to the limiting rod 8 (e.g., injection molded as a single piece), and the other end is a smooth cylindrical surface that fits with the flange hole with clearance. The whole assembly can slide axially within the fastening hole 6, but cannot be completely disengaged from the fastening hole 6 due to the obstruction of the limiting rod 8. During installation, by pushing the limiting rod 8, the limiting ring 7 extends out of the fastening hole 6 and inserts into the flange hole, forming a "clamping" state to temporarily fix the position of the cutting disc. Function: Pre-positioning element, replacing manual support of the cutting disc to align with the hole, reducing labor intensity; the plastic material is squeezed and deformed when the screw is screwed in, filling the gap. Increases friction and sealing; forms an operating handle with the limiting rod 8, facilitating finger application and pushing; achieves tool-less pre-positioning with the flange hole, allowing more time for screw fixing; limiting holes 9 are distributed around the fastening hole 6; during installation, in the pre-positioning stage, the limiting holes 9 cooperate with the flange positioning structure to further restrict the circumferential rotation of the cutting blade, improving pre-fixing stability; function: assists in pre-positioning, preventing the cutting blade from slightly rotating and causing hole misalignment before screw fixing; can be used as a secondary positioning reference, suitable for high-precision installation scenarios; works together with the limiting ring 7 to form a "dual positioning" structure, ensuring precise alignment of the fastening hole 6 with the flange hole, reducing installation errors.

[0023] In one embodiment, a plurality of heat dissipation holes 3 are arranged around the surface of the explosion-proof resin cutting disc body 1. The heat dissipation holes 3 are directly machined as through holes or blind holes on the surface of the cutting disc body and are integrally formed with the body. They are not installation-related structures, but improve the performance stability of the cutting disc by dissipating heat, and indirectly optimize the user experience after installation. Functional role: During cutting, they accelerate airflow, remove frictional heat, prevent the resin matrix from overheating and decomposing, and avoid the explosion-proof performance from deteriorating or the cutting disc from cracking. They cooperate with the groove 2 to form a heat dissipation-chip removal channel, improve the reliability of the cutting disc under high load conditions, and extend its service life.

[0024] In one embodiment, a plurality of grooves 2 are formed around the outer surface of the explosion-proof resin cutting disc body 1. The grooves 2 are machined into annular or spiral grooves on the outer circumferential surface of the cutting disc and are integrally formed with the body. These are not installation-related structures and mainly serve the cutting function. Their functions include: forming a serrated edge during cutting to enhance the ability to cut into materials; guiding cutting debris to be discharged along the grooves 2 to reduce debris accumulation and frictional heat generation; and cooperating with the heat dissipation holes 3 to improve cutting efficiency and safety, indirectly reducing the installation frequency.

[0025] In one embodiment, the length of the limiting ring 7 is greater than the length of the fastening hole 6. The length of the limiting ring 7 is set to ensure that it can be inserted into the hole in the flange to achieve the pre-fixing operation of the structure.

[0026] In one embodiment, both the limiting ring 7 and the limiting rod 8 are made of plastic. The limiting rod 8 is fixedly connected to one end of the limiting ring 7 and protrudes outside the fastening hole 6. The cross-sectional shape can be circular, square, or other structures that are easy to grip with fingers. During installation, it serves as an operating component; by pushing the limiting rod 8 with a finger, the limiting ring 7 moves within the fastening hole 6. Functional purpose: to provide a force application point and simplify the insertion and removal of the limiting ring 7; the overall size of the multiple limiting rods 8 is larger than the diameter of the fastening hole 6, preventing the limiting ring 7 from completely sliding into the hole. This ensures that the limiting ring 7 extends effectively during pre-positioning; it forms a "rod-ring" linkage structure with the limiting ring 7, achieving pre-positioning action through mechanical transmission and improving operational convenience; the plastic limiting ring 7 and limiting rod 8 are connected to the cutting disc body (if resin-based) through injection molding, or independently embedded in the fastening hole 6 (fixed by interference fit); during installation, the elastic deformation capability of the plastic facilitates the insertion of the limiting ring 7 into the flange hole; when the screw is screwed in, the plastic is squeezed and destroyed but remains in the gap, forming an effect similar to an "expansion bolt"; its functions include: elastic deformation reduces pre-positioning resistance, making operation easier; the debris formed after destruction fills the gap, increasing friction and improving fastening reliability; combined with threaded fastening, it achieves the dual effect of "easy pre-positioning insertion + firm and reliable final fixation", avoiding interference between the metal limiting component and the screw.

[0027] In one embodiment, both the limiting ring 7 and the limiting rod 8 are inserted from the flange side away from the spindle surface on the external drive device. The insertion position is set to facilitate the setup of the structure and its subsequent ejection.

[0028] In one embodiment, the fastening hole 6 is internally threaded, which facilitates subsequent fastening and installation. The combination of multiple structural components enables various functional advantages: Pre-positioning is labor-saving: the limiting ring 7 is inserted into the flange hole, replacing manual support for alignment, reducing continuous gripping during installation and lowering labor intensity; Installation is convenient: the mating hole 5 is quickly fitted onto the spindle, and rotating the cutting blade automatically aligns it with the hole via the limiting ring 7, eliminating the need for tool-assisted pre-positioning and shortening installation time; Reliable fastening: after pre-positioning by the limiting ring 7, the screw is fixed by the thread, and the extrusion deformation of the plastic material compensates for processing tolerances, enhancing connection stability; the limiting hole 9 further reduces the risk of misalignment; Functional optimization: the heat dissipation hole 3 and the groove 2 improve cutting performance, reducing the frequency of disassembly and maintenance due to overheating or blockage, indirectly improving overall ease of use; Through the mechanical cooperation (sliding, snap-fit, threaded connection) and material properties (elastic deformation of plastic) of the above components, this cutting blade achieves an installation process of "rapid pre-positioning - precise alignment - reliable fastening," while simultaneously considering cutting efficiency and safety, effectively improving the overall quality of use.

[0029] Working Principle: In actual use, when the cutting disc needs to be installed, it can be directly inserted into the spindle of the drive device through the mating hole 5 on its surface. At this time, the cutting disc will fit against the flange on the spindle. The operator only needs to gently push the cutting disc to make it rotate around the spindle. When the fastening hole 6 on its surface rotates to align with the hole on the flange surface on the spindle, the limiting ring 7 inside the fastening hole 6 can be inserted into the hole on the flange surface. This achieves the pre-fixation operation between the cutting disc and the flange, eliminating the need for the operator to hold the cutting disc for a long time to position and limit its movement. This effectively reduces the labor intensity of personnel, making installation and use more convenient and effortless. After the cutting blade is secured by the limiting ring 7, personnel can insert the screws needed for tightening, thus facilitating subsequent tightening operations. Since the limiting ring 7 is made of plastic, the plastic can be damaged when the screw is tightened, thus not affecting the tightening operation of the structure. At the same time, the remaining plastic can also act as an expansion material to increase its friction, thereby improving the overall tightening effect and facilitating more stable use. The device as a whole has the advantages of convenient installation, pre-positioning for tightening, and effortless operation.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An explosion-proof resin cutting disc that is easy to install, comprising an explosion-proof resin cutting disc body (1), characterized in that, A central column (4) is installed in the middle of the surface of the explosion-proof resin cutting disc body (1). A docking hole (5) is opened inside the central column (4). A number of fastening holes (6) are opened around the surface of the central column (4) on the outer periphery of the docking hole (5). A limiting ring (7) is provided inside the fastening hole (6). A limiting rod (8) is fixedly connected to one end of the limiting ring (7). The limiting rod (8) is located on the outer periphery of the fastening hole (6).

2. The explosion-proof resin cutting disc that is easy to install according to claim 1, characterized in that, The fastening hole (6) is surrounded by several sets of limiting holes (9) on the surface of the central column (4).

3. The explosion-proof resin cutting disc that is easy to install according to claim 1, characterized in that, The explosion-proof resin cutting disc body (1) has several sets of heat dissipation holes (3) around its surface.

4. The explosion-proof resin cutting disc that is easy to install according to claim 1, characterized in that, The explosion-proof resin cutting disc body (1) has several sets of grooves (2) arranged around its outer surface.

5. The explosion-proof resin cutting disc that is easy to install according to claim 1, characterized in that, The length of the limiting ring (7) is greater than the length of the fastening hole (6).

6. The explosion-proof resin cutting disc that is easy to install according to claim 1, characterized in that, Both the limiting ring (7) and the limiting rod (8) are made of plastic.

7. The explosion-proof resin cutting disc that is easy to install according to claim 1, characterized in that, Both the limiting ring (7) and the limiting rod (8) are inserted from the flange side away from the spindle surface on the external drive device.

8. The explosion-proof resin cutting disc that is easy to install according to claim 1, characterized in that, The fastening hole (6) has internal threads.

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