Heat dissipation type thick grinding wheel for grinding blade of plate shearing machine

Abstract

A heat dissipation type thick grinding wheel for grinding a blade of a plate shearing machine belongs to the technical field of grinding, a through hole is formed in the center of the grinding wheel, a heat dissipation ring is arranged in the grinding wheel and filled with paraffin-based phase change materials to absorb heat, a groove is formed in the inner surface of the heat dissipation ring, inclined heat dissipation fins are arranged in the heat dissipation ring, and the surface of the heat dissipation ring is coated with a ceramic coating; a temperature sensor is arranged in the fixing block, cooling fins are arranged on one side of the cooling ring, cooling holes are formed in the surface of the heat conduction block, reinforcing ribs are distributed on the surface of the cooling ring, an adjustable counterweight groove is formed in the surface of the fixing block, and the grinding wheel and the cooling ring are in bolted connection through a through hole and a positioning hole to ensure concentricity. The heat conduction blocks and the heat dissipation fins accelerate heat discharge, material deformation is prevented, the heat dissipation fins are obliquely arranged, airflow disturbance is enhanced, the heat dissipation efficiency is improved, the heat dissipation fins and the heat conduction holes form airflow channels, further heat dissipation is achieved, the reinforcing ribs improve the deformation resistance, the balance weight grooves guarantee the high-speed rotation stability, the overall structure is compact, heat dissipation is efficient, and the high-speed grinding machine is suitable for high-speed grinding machining.

Description

Technical Field

[0001] This utility model belongs to the field of abrasive technology, specifically a heat-dissipating thick abrasive wheel for grinding shearing machine blades. Background Technology

[0002] A grinding wheel is a grinding tool specifically designed for processing and grinding materials such as metals, stone, glass, and ceramics. Its core structure consists of abrasive and binder, and it achieves precise grinding of the workpiece through rotational motion.

[0003] The grinding principle of a grinding wheel mainly relies on the interaction between the abrasive grains and the workpiece surface. This interaction achieves the cutting of the workpiece surface and the removal of material. During the grinding process, the grinding wheel not only rotates around its own axis but also moves in different directions, ensuring that the abrasive grains continuously contact and leave the workpiece surface, thereby efficiently completing the grinding work on the workpiece surface.

[0004] When grinding shearing machine blades, the grinding wheel rotates at high speed, generating a large amount of heat. If heat dissipation is not carried out in time, the grinding wheel may expand, deform, or even break, which will seriously affect the grinding accuracy, reduce the precision of the workpiece, and shorten the service life of the equipment.

[0005] A search revealed that invention CN210550466U provides a dust removal and heat dissipation device for grinding wheels, including a grinding wheel cover, grinding wheel blades, a water tank, and a dust collection box. The device is characterized by: a baffle plate at the lower end of the grinding wheel cover; a protective gasket around the lower end of the baffle plate; a ring-shaped spray nozzle at the lower end of the protective gasket; the grinding wheel blades inside the grinding wheel cover; cooling fans on both sides of the grinding wheel cover; a water pipe and a dust collection motor fixedly connected to one side of the grinding wheel cover; a dust collection pipe on the other side of the dust collection motor; an installation port at the other end of the dust collection pipe; and the dust collection box at the lower end of the installation port. A pressure connector is located in the middle of the water pipe. While this device solves the heat dissipation problem of the grinding wheel during grinding, it is bulky and requires additional equipment. Summary of the Invention

[0006] To address the problem of poor heat dissipation in traditional grinding wheels when grinding shearing machine blades, which necessitates the use of other heat dissipation components, this invention proposes a heat-dissipating thick grinding wheel for grinding shearing machine blades to solve the aforementioned issues.

[0007] A heat-dissipating thick grinding wheel for sharpening shearing machine blades includes a grinding wheel with a central through hole at the center.

[0008] A heat dissipation ring is sleeved inside the through hole of the grinding wheel; the heat dissipation ring includes a first heat dissipation ring and a second heat dissipation ring, and a cavity is formed between the first heat dissipation ring, the second heat dissipation ring and the grinding wheel, and the cavity is filled with a paraffin-based phase change material;

[0009] Beneficial effects: Paraffin-based phase change materials absorb instantaneous high-temperature heat, delaying thermal shock damage to grinding wheels.

[0010] A fixing block is located at the center of the heat dissipation ring, and a through hole is provided at the center of the fixing block;

[0011] A heat-conducting block, wherein both ends of the heat-conducting block are fixedly disposed to the inner surface of the heat dissipation ring and the fixing block, respectively;

[0012] Furthermore, the heat-conducting block can be made of copper-aluminum composite material to improve thermal conductivity. A temperature sensor is embedded in the fixing block to monitor the grinding wheel temperature in real time via wireless transmission and link with the external cooling system to adjust the heat dissipation intensity.

[0013] Beneficial effects: The heat dissipation holes of the heat-conducting block and the through holes on the surface of the grinding wheel form an airflow channel, which accelerates the dissipation of internal heat and avoids material deformation caused by local high temperature.

[0014] At least two of the grooves are provided on the inner surface of the heat dissipation ring;

[0015] Furthermore, the heat dissipation fins are uniformly fixed or limited along the inner surface of the groove; the surface of the heat dissipation fins is coated with a ceramic coating to enhance wear resistance and oxidation resistance.

[0016] Furthermore, the heat dissipation fins are distributed at an asymmetrical angle, for example, the inner layer is tilted at 20° and the outer layer at 30°, to further optimize the airflow disturbance effect.

[0017] Furthermore, at least one heat sink is provided on one side surface of the heat dissipation ring, and heat dissipation holes are formed on the surface of the heat-conducting block; the heat sink is anodized to improve corrosion resistance.

[0018] Beneficial effects: The heat dissipation ring and the heat conduction block form a heat conduction channel, which quickly transfers the heat from the grinding area to the heat dissipation fins and heat sink, and dissipates heat by air convection and thermal radiation. The surface of the heat conduction block is provided with heat dissipation holes.

[0019] Furthermore, a reinforcing rib is provided on one side surface of the first heat dissipation ring, and the reinforcing rib is evenly arranged along the circumferential direction of the surface of the first heat dissipation ring. A grinding wheel gasket is provided between the heat dissipation ring and the grinding wheel.

[0020] Beneficial effects: The reinforcing ribs on the surface of the heat dissipation ring improve the overall resistance to deformation; the counterweight groove adjusts the dynamic balance by adding or removing counterweights, making it suitable for high-speed rotation conditions.

[0021] Furthermore, the central axis of the heat dissipation fins forms a 20°-30° tilt angle with the horizontal line;

[0022] The 20°-30° tilt setting of the heat dissipation fins embedded in the groove can enhance airflow disturbance during rotation and improve heat dissipation efficiency.

[0023] Furthermore, the surface of the fixing block is provided with a counterweight groove.

[0024] Furthermore, the counterweight groove is an annular groove, and the counterweight groove is detachably connected to the counterweight block.

[0025] Furthermore, the surface of the grinding wheel is provided with multiple through holes, and the surface of the heat dissipation ring is provided with multiple positioning holes.

[0026] Furthermore, the through holes and positioning holes correspond one-to-one, and the through holes and positioning holes are connected by bolts; in order to prevent conventional bolts from deforming due to heat during operation, the bolts used should be high-temperature resistant bolts to prevent deformation due to high temperature during continuous operation.

[0027] Beneficial effects: The bolt fixing setting of through holes and positioning holes simplifies the installation process, while ensuring the concentricity of the heat dissipation ring and the grinding wheel.

[0028] During the grinding process, the high-temperature heat generated in the grinding area of ​​the heat-dissipating grinding wheel is first absorbed by the paraffin-based phase change material. This phase change process effectively delays the damage to the grinding wheel caused by thermal shock. Subsequently, the heat is transferred from the grinding wheel to the closely contacting heat dissipation ring through a thermal conduction mechanism. The heat dissipation ring and the heat-conducting block, made of a high thermal conductivity material such as copper-aluminum composite, form a heat conduction channel, further transferring heat to the heat-conducting block. The heat dissipation holes on the surface of the heat-conducting block and the through holes on the surface of the grinding wheel together form an airflow channel, accelerating the dissipation of internal heat and preventing material deformation caused by localized high temperatures. At the same time, the heat dissipation fins evenly arranged in the grooves on the inner surface of the heat dissipation ring, through their inclined arrangement, enhance the airflow disturbance during rotation, further improving heat dissipation efficiency. The heat dissipation fins on one side of the heat dissipation ring dissipate heat into the air through air convection and thermal radiation. In addition, the setting of the counterweight groove and counterweight block ensures the dynamic balance stability of the grinding wheel during high-speed rotation.

[0029] As needed, the dynamic balance of the grinding wheel can be adjusted by adding or removing counterweights to ensure its stability during high-speed rotation;

[0030] Furthermore, the heat dissipation ring is divided into a first heat dissipation ring and a second heat dissipation ring. When installing the grinding wheel, the first and second heat dissipation rings are first combined, and paraffin-based phase change material is filled into the annular groove formed between the first and second heat dissipation rings. Then, the second heat dissipation ring is removed, and the first heat dissipation ring is placed inside the inner ring of the grinding wheel. A grinding wheel pad is placed between the first heat dissipation ring and the grinding wheel. Then, the second heat dissipation ring is installed, so that the first and second heat dissipation rings clamp the grinding wheel and are connected and tightened. This makes the annular groove formed between the first and second heat dissipation rings become a cavity formed between the first and second heat dissipation rings and the grinding wheel. Since part of the surface of the grinding wheel is covered by the heat dissipation ring, the working layer thickness of the grinding wheel is between 30mm and 50mm. If the working layer is not replaced in time after it is consumed, the heat dissipation ring will directly rub against the workpiece, causing an accident. After installation, rotation positioning is performed, and a counterweight is installed to make the grinding wheel rotate smoothly.

[0031] Furthermore, after a period of use, the grinding wheel can be replaced simply by removing the second heat dissipation ring. At the same time as replacing the grinding wheel, the paraffin-based phase change material can also be replaced. The replacement is convenient, and the heat dissipation ring and auxiliary components can be reused, further reducing costs.

[0032] Working Principle: During the grinding process, the grinding wheel generates a large amount of heat. This heat is first absorbed by the paraffin-based phase change material, which delays the damage of thermal shock to the grinding wheel. The heat dissipation ring is in close contact with the grinding wheel, and heat is transferred from the grinding wheel to the heat dissipation ring through thermal conduction. The two ends of the heat-conducting block are fixed to the inner surface of the heat dissipation ring and the fixed block, respectively. The heat-conducting block is made of a high thermal conductivity material to further improve the heat conduction efficiency. The heat dissipation holes of the heat-conducting block and the through holes on the surface of the grinding wheel form airflow channels. These channels can accelerate the discharge of internal heat and prevent material deformation caused by local high temperature. The heat dissipation fins are evenly arranged along the grooves on the inner surface of the heat dissipation ring, and the inclined arrangement enhances the airflow disturbance during rotation, improving the heat dissipation efficiency. A heat dissipation fin is provided on one side surface of the heat dissipation ring, which further dissipates heat through air convection and thermal radiation. The counterweight groove adjusts the dynamic balance by adding or removing counterweights, which is suitable for high-speed rotation conditions and ensures the stability of the grinding wheel during rotation.

[0033] Compared with the prior art, the present invention has the following beneficial effects;

[0034] 1. High-efficiency heat dissipation: The combination of paraffin-based phase change materials with heat dissipation rings, heat-conducting blocks, heat dissipation fins and heat sinks forms a highly efficient heat conduction and heat dissipation mechanism, which effectively reduces the temperature during the grinding process and extends the service life of the grinding wheel.

[0035] 2. Preventing thermal damage: Paraffin-based phase change materials can absorb instantaneous high-temperature heat, delaying thermal shock damage to the grinding wheel and protecting the structural integrity of the grinding wheel.

[0036] Enhanced heat dissipation through airflow disturbance: The tilted design of the heat dissipation fins enhances airflow disturbance during rotation, thereby improving heat dissipation efficiency and ensuring the stability of the grinding wheel during long-term operation.

[0037] Dynamic balance adjustment: The counterweight groove and counterweight block enable the grinding wheel to maintain dynamic balance when rotating at high speed, reducing vibration and noise and improving work efficiency.

[0038] 4. Simplified installation process: The bolt fixing setting of through holes and positioning holes not only simplifies the installation process of heat dissipation ring and grinding wheel, but also ensures their concentricity and maximizes the heat dissipation effect. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 A front view of a heat-dissipating thick grinding wheel for sharpening shearing machine blades;

[0041] Figure 2 Rear view of a heat-dissipating thick grinding wheel for sharpening shearing machine blades;

[0042] Figure 3 Side view of a heat-dissipating thick grinding wheel for sharpening shearing machine blades;

[0043] Figure 4 for Figure 1 Sectional view of aa;

[0044] Figure 5 This is a schematic diagram of the first heat dissipation ring structure;

[0045] Figure 6 This is a schematic diagram of the second heat dissipation ring structure.

[0046] In the picture:

[0047] 1. Grinding wheel;

[0048] 2. Heat dissipation ring; 201. First heat dissipation ring; 202. Second heat dissipation ring.

[0049] 3. Reinforcing ribs;

[0050] 4. Heat sink;

[0051] 5. Heat dissipation fins;

[0052] 6. Groove;

[0053] 7. Heat sink;

[0054] 8. Counterweight;

[0055] 9. Fixing block;

[0056] 10. Counterweight groove;

[0057] 11. Grinding wheel gasket;

[0058] 12. Chamber. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0060] The application principle of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0061] like Figure 1-4 As shown: A heat-dissipating thick grinding wheel for grinding shearing machine blades includes a grinding wheel 1, wherein a central through hole is provided at the center of the grinding wheel 1;

[0062] A heat dissipation ring 2 is sleeved inside the through hole of the grinding wheel 1; the heat dissipation ring 2 includes a first heat dissipation ring 201 and a second heat dissipation ring 202, and a cavity 12 is formed between the first heat dissipation ring 201, the second heat dissipation ring 202 and the grinding wheel 1. The cavity 12 is filled with a paraffin-based phase change material to absorb instantaneous high-temperature heat and delay thermal shock damage to the grinding wheel.

[0063] Fixing block 9, which is located at the center of the heat dissipation ring 2, and has a through hole at the center of the fixing block 9;

[0064] The heat-conducting block 7 is fixed at both ends to the inner surface of the heat dissipation ring 2 and the fixing block 9, respectively. The heat-conducting block 7 can be made of copper-aluminum composite material to improve thermal conductivity. The fixing block 9 is embedded with a temperature sensor to monitor the grinding wheel temperature in real time through wireless transmission and to adjust the heat dissipation intensity in conjunction with the external cooling system.

[0065] The heat dissipation holes of the heat-conducting block 7 and the through holes on the surface of the grinding wheel 1 form an airflow channel, which accelerates the dissipation of internal heat and avoids material deformation caused by local high temperature.

[0066] At least two grooves 6 are provided on the inner surface of the heat dissipation ring 2;

[0067] Heat dissipation fins 5 are uniformly fixed or limited along the inner surface of the groove 6; the surface of the heat dissipation fins 5 is coated with a ceramic coating to enhance wear resistance and oxidation resistance.

[0068] A reinforcing rib 3 is provided on one side surface of the first heat dissipation ring 201. The reinforcing rib 3 is evenly arranged along the circumferential direction of the surface of the first heat dissipation ring 201. A grinding wheel shim 11 is provided between the heat dissipation ring 2 and the grinding wheel 1. The reinforcing rib on the surface of the heat dissipation ring improves the overall resistance to deformation. The counterweight groove adjusts the dynamic balance by adding or removing counterweights, which is suitable for high-speed rotation conditions.

[0069] The heat dissipation fins 5 are distributed at an asymmetrical angle, for example, the inner layer is tilted at 20° and the outer layer at 30°, to further optimize the airflow disturbance effect.

[0070] At least one heat sink 4 is provided on one side surface of the heat dissipation ring 2, and heat dissipation holes are provided on the surface of the heat conduction block 7; the heat sink 4 is anodized to improve corrosion resistance.

[0071] The heat dissipation ring 2 and the heat conduction block 7 form a heat conduction channel, which quickly transfers the heat from the grinding area to the heat dissipation fins 5 and heat sink 4, and dissipates heat by air convection and heat radiation. The surface of the heat conduction block 7 is provided with heat dissipation holes.

[0072] The surface of the heat dissipation ring 2 is provided with reinforcing ribs 3, which are uniformly arranged along the circumferential direction of the surface of the heat dissipation ring 2; the reinforcing ribs 3 on the surface of the heat dissipation ring 2 improve the overall resistance to deformation; the counterweight groove 10 adjusts the dynamic balance by adding or removing counterweights 8, which is suitable for high-speed rotation conditions.

[0073] The central axis of the heat dissipation fin 5 forms an inclination angle of 20°-30° with the horizontal line; the inclination setting of the heat dissipation fin 5 embedded in the groove 6 at 20°-30° can enhance the airflow disturbance during rotation and improve the heat dissipation efficiency.

[0074] The surface of the fixing block 9 is provided with a counterweight groove 10.

[0075] The counterweight groove 10 is an annular groove, and the counterweight groove 10 is detachably connected to the counterweight block 8.

[0076] The surface of the grinding wheel 1 is provided with multiple through holes, and the surface of the heat dissipation ring 2 is provided with multiple positioning holes.

[0077] The through holes and positioning holes correspond one-to-one, and the through holes and positioning holes are connected by bolts; the bolt fixing of the through holes and positioning holes simplifies the installation process, while ensuring the concentricity of the heat dissipation ring 2 and the grinding wheel 1.

[0078] When the grinding wheel 1 starts working, a large amount of heat is generated in the grinding area. The paraffin-based phase change material first absorbs the instantaneous high temperature heat, delaying thermal shock. The heat is transferred from the grinding wheel 1 to the heat dissipation ring 2 through thermal conduction, and then to the heat dissipation fins 5 and heat sink 4 through the heat conduction block 7. The inclined setting of the heat dissipation fins 5 enhances the airflow disturbance during rotation, improving heat dissipation efficiency. The heat dissipation holes of the heat sink 4 and the heat conduction block 7 form an airflow channel, accelerating the removal of heat. The temperature sensor embedded in the fixing block 9 monitors the temperature of the grinding wheel 1 in real time and transmits the data wirelessly to the external cooling system. The external cooling system adjusts the rotation speed according to the temperature data to ensure that the grinding wheel 1 operates within a safe temperature range.

[0079] As needed, the dynamic balance of the grinding wheel 1 can be adjusted by adding or removing counterweights 8 to ensure its stability during high-speed rotation;

[0080] The heat dissipation ring 2 is divided into a first heat dissipation ring 201 and a second heat dissipation ring 202. When installing the grinding wheel 1, the first heat dissipation ring 201 and the second heat dissipation ring 202 are first combined, and the annular groove formed between the first heat dissipation ring 201 and the second heat dissipation ring 202 is filled with paraffin-based phase change material. Then, the second heat dissipation ring 202 is removed, and the first heat dissipation ring 201 is fitted into the inner ring of the grinding wheel 1. A grinding wheel pad 11 is placed between the first heat dissipation ring 201 and the grinding wheel 1. Then, the second heat dissipation ring 202 is installed, so that the first heat dissipation ring 201 and the second heat dissipation ring 202 are connected. Clamp the grinding wheel 1 and secure it, so that the annular groove formed between the first heat dissipation ring 201 and the second heat dissipation ring 202 becomes the cavity 12 formed between the first heat dissipation ring 201, the second heat dissipation ring 202 and the grinding wheel 1. Since part of the surface of the grinding wheel 1 is covered by the heat dissipation ring 2, the working layer thickness of the grinding wheel 1 is between 30mm and 50mm. If the working layer is not replaced in time after it is consumed, the heat dissipation ring 2 will directly rub against the workpiece and cause an accident. After installation, rotate and position it, and install the counterweight 8 to make the grinding wheel rotate smoothly.

[0081] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0082] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A heat dissipating type thick grinding wheel for plate shearing blade polishing, characterized by: Including the grinding wheel (1), the grinding wheel (1) is provided with a central through hole at the center; The heat dissipation ring (2) is sleeved in the through hole inside the grinding wheel (1); The fixed block (9) is located at the center of the heat dissipation ring (2), and the fixed block (9) is provided with a through hole at the center; The heat conduction block (7) is fixedly provided with the inner surface of the heat dissipation ring (2) and the fixed block (9) at both ends respectively; At least two recesses (6) are provided on the inner surface of the heat dissipation ring (2); The heat dissipation fins (5) are uniformly fixed and arranged or limited on the inner surface of the recess (6).

2. The heat dissipating thick grinding wheel for plate shearing blade polishing according to claim 1, characterized in that: One side surface of the heat dissipation ring (2) is provided with at least one heat dissipation fin (4), the heat dissipation fin (4) is treated by anodic oxidation, the heat dissipation ring (2) includes a first heat dissipation ring (201) and a second heat dissipation ring (202), a cavity (12) is formed between the first heat dissipation ring (201) and the second heat dissipation ring (202) and the grinding wheel (1), and the cavity (12) is filled with paraffin-based phase change material.

3. The heat dissipating thick grinding wheel for plate shearing blade polishing according to claim 2, characterized in that: One side surface of the first heat dissipation ring (201) is provided with a reinforcing rib (3), the reinforcing rib (3) is uniformly arranged along the circumferential direction of the surface of the first heat dissipation ring (201), and a grinding wheel gasket (11) is arranged between the heat dissipation ring (2) and the grinding wheel (1).

4. The heat dissipating thick grinding wheel for polishing blade of plate shearing machine according to claim 1, characterized in that: The central axis of the heat dissipation fin (5) and the horizontal line form an inclination angle of 20°-30°, and the heat dissipation fin (5) is distributed according to an asymmetric angle.

5. The heat dissipating thick grinding wheel for polishing blade of plate shearing machine according to claim 1, characterized in that: The surface of the fixed block (9) is provided with a counterweight groove (10).

6. The heat dissipating thick grinding wheel for plate shearing blade polishing according to claim 5, characterized in that: The counterweight groove (10) is an annular groove, and the counterweight groove (10) can be detachably linked with the counterweight block (8).

7. The heat dissipating thick grinding wheel for plate shearing blade polishing according to claim 1, characterized in that: The surface of the grinding wheel (1) is provided with a plurality of through holes, and the surface of the heat dissipation ring (2) is provided with a plurality of positioning holes.

8. The heat dissipating thick grinding wheel for plate shearing blade polishing according to claim 7, characterized in that: The through hole and the positioning hole are one-to-one corresponding, and the through hole and the positioning hole are matched with bolt connection.

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