Efficient heat dissipation structure of diamond grinding wheel

Abstract

The utility model relates to diamond grinding wheel technical field, and disclose a kind of high-efficiency heat dissipation structure of diamond grinding wheel, including grinding disc and the metal disc being installed in the inside of grinding disc, the metal disc outer surface is tightly bonded with the inner wall of grinding disc, the metal disc side is also provided with deflector, the deflector is used to guide air to the inside of grinding disc.This high-efficiency heat dissipation structure of diamond grinding wheel, by deflector and expansion plate, so that in high-speed rotation of grinding wheel, air can be smoothly introduced into the cavity, to solve the problem of air entering difficulty when high-speed rotation of grinding wheel, simultaneously, multiple independent heat conduction zones and staggered distribution heat conduction sheet being arranged in the metal disc, not only increase the contact area of air and heat conduction surface, also through the high thermal conductivity of copper sheet or aluminium sheet, realize the rapid transmission and emission of heat;In addition, the close cooperation of the heat conduction sheet of the T shape and fixed groove, ensure the stability of heat conduction sheet under high-speed operation.

Description

Technical Field

[0001] This utility model relates to the field of diamond grinding wheel technology, specifically to a high-efficiency heat dissipation structure for diamond grinding wheels. Background Technology

[0002] Using diamond abrasive as the core raw material and a disc-shaped cemented carbide as the matrix, the diamond abrasive is coated onto the surface of the cemented carbide matrix through welding, chemical deposition, or by directly bonding, sintering, and pressing diamond microparticles with adhesives such as resin, and finally formed into a ring-shaped grinding wheel, which we call a diamond grinding wheel. Due to its excellent characteristics and advantages in the grinding of hard and brittle materials and cemented carbide, it has become a commonly used tool in the grinding field.

[0003] An existing patent (publication number: CN220575636U) discloses a high-toughness diamond grinding wheel, which includes a diamond grinding wheel body located in the middle and a shaft mounting hole opened in the middle of the diamond grinding wheel body. It also includes a reinforcing component and a heat dissipation component. The reinforcing component is provided in the middle of both sides of the diamond grinding wheel body, and the heat dissipation component is provided at the edge of both sides of the diamond grinding wheel body.

[0004] Although this application achieves good strength and heat dissipation for the diamond grinding wheel body through heat dissipation and reinforcement components, ensuring the performance of the diamond grinding wheel body, the air inlet of this application is perpendicular to the axis of the grinding wheel. When the grinding wheel rotates at high speed, air is difficult to effectively enter the heat dissipation component, resulting in the heat dissipation efficiency still needing improvement. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a highly efficient heat dissipation structure for diamond grinding wheels, solving the problem that air is difficult to effectively enter the heat dissipation components when the grinding wheel is rotating at high speed.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency heat dissipation structure for a diamond grinding wheel, comprising a grinding wheel disc and a metal disc installed inside the grinding wheel disc, wherein the outer surface of the metal disc is in close contact with the inner wall of the grinding wheel disc, and a guide plate is also provided on the side of the metal disc, the guide plate being used to guide air into the interior of the grinding wheel disc.

[0007] The metal disk has a placement cavity inside, and a heat-conducting plate is installed inside the placement cavity. An air inlet and an air outlet are respectively opened on both sides of the metal disk. The air inlet and the air outlet are connected to the placement cavity. The position of the guide plate corresponds to the air inlet.

[0008] Through the above solution, the guide plate can guide the airflow generated when the grinding wheel rotates at high speed to the air inlet, allowing the air to enter the placement chamber, thus solving the problem that the air is difficult to effectively enter the heat dissipation component during the high-speed rotation of the grinding wheel. At the same time, the air entering the placement chamber can quickly absorb the heat generated by the grinding wheel under the action of the heat-conducting plate, and then the hot air is discharged through the exhaust port, forming an effective air circulation, thereby significantly improving the heat dissipation efficiency.

[0009] Furthermore, a support block is fixed to the inner wall of the placement cavity, the support block is tightly fitted to the inner wall of the placement cavity, there are multiple support blocks, and the multiple support blocks divide the placement cavity into multiple independent heat-conducting zones, there are multiple heat-conducting sheets, and the heat-conducting sheets are staggered inside each heat-conducting zone, the heat-conducting sheets are copper sheets or aluminum sheets.

[0010] Through the above scheme, multiple independent heat-conducting zones can increase the contact area between air and heat-conducting plates, enabling heat to be absorbed and transferred more quickly. Furthermore, the staggered arrangement of heat-conducting plates can further enhance the airflow and turbulence within the placement cavity, improving the heat dissipation effect. At the same time, copper or aluminum plates, as heat-conducting plates, have excellent thermal conductivity and can quickly transfer heat from the grinding wheel to the air.

[0011] Furthermore, the upper surface of the heat-conducting plate is in contact with the inner wall of the grinding wheel, the surface of the metal disc is provided with a fixing groove, the fixing groove is connected to the placement cavity, the heat-conducting plate is embedded in the fixing groove, the lower end of the heat-conducting plate is in contact with the inner wall of the placement cavity, and both the heat-conducting plate and the fixing groove are "T" shaped.

[0012] With the above solution, the "T"-shaped heat-conducting plate, in conjunction with the fixing groove, can not only effectively fix the position of the heat-conducting plate and prevent it from shaking or falling off during the high-speed rotation of the grinding wheel, but also ensure that the heat-conducting plate is in close contact with the inner wall of the grinding wheel and the inner wall of the placement cavity, thereby maximizing the heat conduction efficiency. This allows heat to be transferred more quickly from the grinding wheel to the heat-conducting plate, and then from the heat-conducting plate to the air, further enhancing the heat dissipation capacity of the grinding wheel.

[0013] Furthermore, an expansion plate is fixed to one end of the guide plate near the air inlet. The expansion plate expands outward along the arc edge of the guide plate, and the opening direction of the expansion plate is consistent with the rotation direction of the grinding wheel. The expansion plate is used to increase the air inlet area of ​​the guide plate.

[0014] Through the above solution, the expansion plate can capture more airflow when the grinding wheel is rotating at high speed and guide it to the air inlet, thereby increasing the amount of air entering the placement chamber. This not only improves heat dissipation efficiency but also ensures sufficient airflow even when the grinding wheel is running at high speed, thus maintaining the stable operating temperature of the grinding wheel.

[0015] Furthermore, the exhaust vent is a tapered vent that gradually narrows from the inside of the placement cavity to the outside, the exhaust vent is arc-shaped, and the position of the exhaust vent corresponds to the heat conduction zone.

[0016] The above-mentioned design allows the tapered exhaust vent to accelerate the flow of hot air from the placement chamber, further improving heat dissipation efficiency. Simultaneously, the arc-shaped exhaust vent, positioned corresponding to the heat-conducting area, ensures that the hot air follows the rotation trajectory of the grinding wheel during exhaust, reducing air turbulence and energy loss, and guaranteeing that the diamond grinding wheel maintains excellent heat dissipation even during prolonged high-speed operation.

[0017] Compared with the prior art, the technical solution of this utility model has the following beneficial effects: The diamond grinding wheel's highly efficient heat dissipation structure, through guide plates and expansion plates, allows air to be smoothly introduced into the placement chamber when the grinding wheel rotates at high speed, thus solving the problem of difficult air entry during high-speed grinding wheel rotation. At the same time, the multiple independent heat-conducting zones and staggered heat-conducting fins inside the metal disc not only increase the contact area between air and the heat-conducting surface, but also achieve rapid heat transfer and dissipation through the high thermal conductivity of copper or aluminum fins. In addition, the tight fit between the "T"-shaped heat-conducting fins and the fixing groove ensures the stability of the heat-conducting fins under high-speed operation, further guaranteeing the continuity and efficiency of heat conduction. Attached Figure Description

[0018] Figure 1 This is a diagram illustrating the overall structure of this application; Figure 2 This is a front sectional view of the structure of this application; Figure 3 This is a side sectional view of the structure of this application; Figure 4 This is a partial sectional view of the structure of this application; Figure 5 This is a rear view structural diagram of this application.

[0019] In the picture: 1. Grinding wheel; 2. Metal tray; 201. Placement cavity; 202. Support block; 203. Heat-conducting plate; 204. Air inlet; 205. Air outlet; 206. Fixing groove; 3. Deflector plate; 301. Expansion plate. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] Please see Figure 1-5 This embodiment provides a high-efficiency heat dissipation structure for a diamond grinding wheel, including a grinding wheel disc 1 and a metal disc 2 installed inside the grinding wheel disc 1. The outer surface of the metal disc 2 is tightly fitted to the inner wall of the grinding wheel disc 1. A guide plate 3 is also provided on the side of the metal disc 2 to guide air into the grinding wheel disc 1. A placement cavity 201 is formed inside the metal disc 2, and a heat-conducting plate 203 is provided inside the placement cavity 201. An air inlet 204 and an air outlet 205 are respectively formed on both sides of the metal disc 2, and both the air inlet 204 and the air outlet 205 are connected to the placement cavity 201. The 01 connection is connected, and the position of the guide plate 3 corresponds to the air inlet 204. The guide plate 3 can guide the airflow generated when the grinding wheel rotates at high speed to the air inlet 204, so that the air enters the placement cavity 201, which solves the problem that the air is difficult to effectively enter the heat dissipation component during the high-speed rotation of the grinding wheel. At the same time, the air entering the placement cavity 201 can quickly absorb the heat generated by the grinding wheel 1 under the action of the heat conduction plate 203. Then the hot air is discharged through the exhaust port 205, forming an effective air circulation, thereby significantly improving the heat dissipation efficiency.

[0022] Please see Figure 2 , Figure 3 and Figure 4A support block 202 is fixed to the inner wall of the placement cavity 201. The support block 202 is tightly fitted to the inner wall of the placement cavity 201. There are multiple support blocks 202, which divide the placement cavity 201 into multiple independent heat-conducting zones. There are multiple heat-conducting plates 203, which are staggered inside each heat-conducting zone. The heat-conducting plates 203 are made of copper or aluminum. Multiple independent heat-conducting zones can increase the contact area between the air and the heat-conducting plates 203, allowing heat to be absorbed and transferred more quickly. The staggered arrangement of the heat-conducting plates 203 can further enhance the airflow and turbulence within the placement cavity 201, improving the heat dissipation effect. At the same time, copper or aluminum plates, as heat-conducting plates 203, have good thermal conductivity and can quickly transfer heat from the grinding wheel 1 to the air. The upper surface of the heat-conducting plate 203... The surface of the metal disc 2 is in contact with the inner wall of the grinding wheel 1. A fixing groove 206 is formed on the surface of the metal disc 2, which is connected to the placement cavity 201. The heat-conducting plate 203 is embedded in the fixing groove 206, and the lower end of the heat-conducting plate 203 is in contact with the inner wall of the placement cavity 201. Both the heat-conducting plate 203 and the fixing groove 206 are "T" shaped. The "T" shaped heat-conducting plate 203 and the fixing groove 206 cooperate to not only effectively fix the position of the heat-conducting plate 203 and prevent it from shaking or falling off during the high-speed rotation of the grinding wheel, but also ensure that the heat-conducting plate 203 is in close contact with the inner wall of the grinding wheel 1 and the inner wall of the placement cavity 201, thereby maximizing the heat conduction efficiency and enabling heat to be transferred more quickly from the grinding wheel 1 to the heat-conducting plate 203, and then transferred from the heat-conducting plate 203 to the air, further improving the heat dissipation capacity of the grinding wheel.

[0023] Please see Figure 1 , Figure 3 and Figure 5 An expansion plate 301 is fixed to one end of the guide plate 3 near the air inlet 204. The expansion plate 301 expands outward along the arc edge of the guide plate 3, and the opening direction of the expansion plate 301 is consistent with the rotation direction of the grinding wheel 1. The expansion plate 301 is used to increase the air intake area of ​​the guide plate 3. The expansion plate 301 enables more airflow to be captured when the grinding wheel rotates at high speed and guide it to the air inlet 204, thereby increasing the amount of air entering the placement cavity 201. This not only improves the heat dissipation efficiency but also ensures sufficient airflow even when the grinding wheel is running at high speed, thus maintaining the stable operation of the grinding wheel. Temperature; The exhaust vent 205 is a tapered vent that gradually narrows from the inside of the placement cavity 201 to the outside. The exhaust vent 205 is arc-shaped and its position corresponds to the heat conduction area. The tapered exhaust vent 205 can accelerate the flow rate of hot air discharged from the placement cavity 201, further improving the heat dissipation efficiency. At the same time, the arc shape of the exhaust vent 205 and its position corresponding to the heat conduction area allow the hot air to conform to the rotation trajectory of the grinding wheel 1 during the discharge process, reducing air turbulence and energy loss during the discharge process, and ensuring that the diamond grinding wheel can maintain good heat dissipation effect during long-term high-speed operation.

[0024] It should be noted that the metal disc 2 and the grinding wheel disc 1 are tightly connected by a high-strength adhesive or mechanical fastening method. The high-strength adhesive or mechanical fastening method can provide reliable connection strength, effectively withstand the huge centrifugal force generated when the grinding wheel rotates at high speed, and ensure that the metal disc 2 and the grinding wheel disc 1 always remain in a tight fit. This avoids the failure of the heat dissipation structure due to relative movement between the two, thereby ensuring that the entire diamond grinding wheel's high-efficiency heat dissipation structure can work stably during long-term high-speed operation, continuously exert good heat dissipation performance, extend the service life of the diamond grinding wheel, and improve its processing accuracy and efficiency.

[0025] The working principle of the above embodiments is as follows: When the grinding wheel rotates at high speed, the guide plate 3 can effectively guide the external air to the air inlet 204, allowing the air to enter the placement cavity 201. Since the placement cavity 201 is equipped with multiple staggered heat-conducting plates 203, these heat-conducting plates 203 can quickly conduct the heat generated by the grinding wheel 1 during the grinding process to the air, realizing rapid heat exchange. The continuous inflow of air at the air inlet 204, combined with the tapered and arc-shaped exhaust port 205, allows the air that has completed heat exchange to be discharged from the exhaust port 205, increasing the contact time and area between the air and the heat-conducting plates 203, improving heat dissipation efficiency. Moreover, the tapered exhaust port 205 can accelerate the speed of air discharge, further enhancing air flow and heat dissipation effect.

[0026] Meanwhile, the support block 202 divides the placement cavity 201 into multiple independent heat conduction zones. The heat conduction plates 203 in each heat conduction zone work independently and cooperate with each other, so that the entire heat dissipation structure can evenly distribute and conduct heat, avoiding the problem of local heat accumulation. Furthermore, the heat conduction plates 203 are made of copper or aluminum, which can quickly conduct heat away from the grinding wheel 1.

[0027] In addition, when the grinding wheel rotates, the opening direction of the expansion plate 301 is consistent with the rotation direction of the grinding wheel disk 1, thereby further expanding the air intake range and increasing the air intake volume; while the metal disk 2 and the grinding wheel disk 1 are tightly connected by a high-strength adhesive or mechanical fixing method, ensuring the stability of the structure during the high-speed rotation of the grinding wheel, and preventing the relative movement of the metal disk 2 and the grinding wheel disk 1 from affecting the heat dissipation effect or even damaging the heat dissipation structure.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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.

[0029] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency heat dissipation structure for a diamond grinding wheel, characterized in that: It includes a grinding wheel (1) and a metal disc (2) installed inside the grinding wheel (1). The outer surface of the metal disc (2) is in close contact with the inner wall of the grinding wheel (1). A guide plate (3) is also provided on the side of the metal disc (2). The guide plate (3) is used to guide air into the interior of the grinding wheel (1). The metal disk (2) has a placement cavity (201) inside, and a heat-conducting plate (203) is provided inside the placement cavity (201). An air inlet (204) and an air outlet (205) are respectively opened on both sides of the metal disk (2). The air inlet (204) and the air outlet (205) are connected to the placement cavity (201). The position of the guide plate (3) corresponds to the air inlet (204).

2. The high-efficiency heat dissipation structure for a diamond grinding wheel according to claim 1, characterized in that: The inner wall of the placement cavity (201) is fixed with a support block (202). The support block (202) is in close contact with the inner wall of the placement cavity (201). There are multiple support blocks (202), and the multiple support blocks (202) divide the placement cavity (201) into multiple independent heat-conducting zones. There are multiple heat-conducting sheets (203), and the heat-conducting sheets (203) are staggered inside each heat-conducting zone. The heat-conducting sheets (203) are copper sheets or aluminum sheets.

3. The high-efficiency heat dissipation structure for a diamond grinding wheel according to claim 1, characterized in that: The upper surface of the heat-conducting plate (203) is in contact with the inner wall of the grinding wheel (1). The surface of the metal disc (2) is provided with a fixing groove (206). The fixing groove (206) is connected to the placement cavity (201). The heat-conducting plate (203) is embedded in the fixing groove (206). The lower end of the heat-conducting plate (203) is in contact with the inner wall of the placement cavity (201). Both the heat-conducting plate (203) and the fixing groove (206) are "T" shaped.

4. The high-efficiency heat dissipation structure for a diamond grinding wheel according to claim 1, characterized in that: An expansion plate (301) is fixed at one end of the guide plate (3) near the air inlet (204). The expansion plate (301) expands outward along the arc edge of the guide plate (3), and the opening direction of the expansion plate (301) is consistent with the rotation direction of the grinding wheel (1). The expansion plate (301) is used to increase the air inlet area of ​​the guide plate (3).

5. The high-efficiency heat dissipation structure for a diamond grinding wheel according to claim 2, characterized in that: The exhaust vent (205) is a tapered vent that gradually narrows from the inside of the placement cavity (201) to the outside. The exhaust vent (205) is arc-shaped and its position corresponds to the heat conduction zone.

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