A special motor structure for a knife grinding machine

Abstract

This utility model discloses a special motor structure for a knife grinding machine, belonging to the technical field of knife grinding machines. Key technical features include a base, a mounting platform on top of the base, a frame on top of the mounting platform, and a high-efficiency heat dissipation motor assembly fixedly connected to the bottom of the frame. A dust-proof component is installed at the bottom of the high-efficiency heat dissipation motor assembly. By installing the high-efficiency heat dissipation motor assembly, the coolant circulating in the spiral water-cooling channel can quickly remove heat, preventing the motor body from overheating due to prolonged high-load operation, effectively extending the service life of the motor body and reducing the frequency of failures caused by overheating. The dust-proof component can promptly remove generated dust, preventing dust from entering the motor body and avoiding failures such as bearing wear and winding short circuits caused by dust accumulation, effectively extending the service life of the motor body and ensuring the stable operation of the knife grinding machine.

Description

Technical Field

[0001] This utility model relates to the field of knife grinding machine technology, and in particular to a special motor structure for knife grinding machines. Background Technology

[0002] In the fields of machining and tool sharpening, sharpening machines are indispensable equipment, and the performance of the motor, as the core power component of the sharpening machine, directly determines the sharpening efficiency and processing quality.

[0003] Currently, most sharpening machine motors on the market use air cooling. During long-term, high-load sharpening operations, the heat inside the motor is difficult to dissipate quickly, which can easily lead to a decline in motor performance or even damage due to overheating, thus shortening the motor's lifespan. On the other hand, a large amount of metal dust and debris are generated during the sharpening process. This dust can easily enter the motor, which can not only affect the normal operation of the motor but also cause serious malfunctions such as short circuits, thereby affecting the normal operation of the sharpening machine.

[0004] Therefore, a special motor structure for knife grinding machines is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a special motor structure for a knife sharpening machine, which can solve the problem that most existing knife sharpening machine motors use air cooling for heat dissipation. During long-term, high-load sharpening operations, the heat inside the motor is difficult to dissipate quickly, which can easily lead to overheating, resulting in decreased motor performance or even damage, and shortening the motor's service life. On the other hand, a large amount of metal dust and debris are generated during the sharpening process. This dust can easily enter the motor, which can not only affect the normal operation of the motor, but may also cause serious malfunctions such as short circuits, thereby affecting the normal operation of the knife sharpening machine.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a special motor structure for a knife grinding machine, including a base, a mounting platform on the top of the base, a frame on the top of the mounting platform, a high-efficiency heat dissipation motor assembly fixedly connected to the bottom of the frame, a dustproof component at the bottom of the high-efficiency heat dissipation motor assembly, and a connecting column.

[0007] The high-efficiency heat dissipation motor assembly includes a motor body, and a protective shell is fixedly fitted onto the surface of the motor body. The protective shell is made of aluminum alloy and has a spiral water cooling channel inside. Both ends of the spiral water cooling channel are fixedly connected to flexible hoses, which are fixedly connected to an external water cooling circulation device.

[0008] Preferably, the connecting post is fixedly connected to the bottom of the protective shell, and an annular metal tube is fixedly connected to the bottom of the connecting post.

[0009] Preferably, a dust collection hood is fixedly connected to the bottom of the surface of the annular metal tube, and the number of dust collection hoods is set to several and they are arranged at an angle.

[0010] Preferably, a corrugated negative pressure pipe is fixedly connected to the surface of the annular metal tube, and the other end of the corrugated negative pressure pipe is fixedly connected to an external industrial vacuum cleaner.

[0011] Preferably, a hydraulic damper is fixedly connected to the top of the inner wall of the frame, and the bottom end of the piston rod of the hydraulic damper is fixedly connected to the top of the protective shell.

[0012] Preferably, a helical spring is fitted onto the surface of the hydraulic damper, and the two ends of the helical spring are fixedly connected to the frame and the protective shell, respectively.

[0013] Preferably, a grinding wheel is bolted to the output end of the motor body, and a fixing plate is provided below the grinding wheel, with a cutting tool bolted to the top of the fixing plate.

[0014] Preferably, a PLC controller is fixedly installed on the right side of the mounting platform, and the motor body, water cooling circulation equipment, and industrial vacuum cleaner are all electrically connected to the PLC controller.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This application sets up a high-efficiency heat dissipation motor assembly. Compared with the traditional air cooling method, the good thermal conductivity of the aluminum alloy protective shell can quickly conduct the heat generated by the motor body. The coolant circulating in the spiral water cooling channel can quickly remove the heat, preventing the motor body from overheating due to long-term high-load operation, effectively extending the service life of the motor body and reducing the frequency of failures caused by overheating.

[0017] 2. This application, by setting up a dust-proof component, forms a closed negative pressure dust suction channel with the dust suction hood, annular metal pipe, and corrugated negative pressure pipe, which can promptly suck away the generated dust, prevent dust from entering the motor body, avoid malfunctions such as bearing wear and winding short circuits caused by dust accumulation, effectively extend the service life of the motor body, and ensure the stable operation of the grinding machine. Attached Figure Description

[0018] Figure 1 This is an overall structural diagram of the special motor structure for the knife grinding machine of this utility model;

[0019] Figure 2 This is a schematic diagram showing the connection between the high-efficiency heat dissipation motor assembly and the dustproof assembly of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the high-efficiency heat dissipation motor assembly of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the dustproof component of this utility model;

[0022] Figure 5 This utility model Figure 1 Enlarged diagram of point A in the middle.

[0023] In the diagram, 1. Base; 2. Mounting platform; 3. Frame; 4. High-efficiency heat dissipation motor assembly; 401. Motor body; 402. Protective housing; 403. Spiral water cooling channel; 404. Flexible hose; 5. Dustproof assembly; 501. Connecting column; 502. Annular metal tube; 503. Dust hood; 504. Corrugated negative pressure pipe; 6. Hydraulic damper; 7. Helical spring; 8. Grinding wheel; 9. Fixing clamp; 10. Cutting tool; 11. PLC controller. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-5 The present invention provides the following technical solution:

[0026] A special motor structure for a knife sharpening machine includes a base 1, a mounting platform 2 on the top of the base 1, a frame 3 on the top of the mounting platform 2, a high-efficiency heat dissipation motor assembly 4 fixedly connected to the bottom of the frame 3, and a dustproof assembly 5 at the bottom of the high-efficiency heat dissipation motor assembly 4, the dustproof assembly 5 including a connecting column 501.

[0027] The high-efficiency heat dissipation motor assembly 4 includes a motor body 401, a protective shell 402 fixedly sleeved on the surface of the motor body 401, the protective shell 402 is made of aluminum alloy, a spiral water cooling channel 403 is opened inside the protective shell 402, and a flexible hose 404 is fixedly connected to both ends of the spiral water cooling channel 403, and the flexible hose 404 is fixedly connected to an external water cooling circulation device.

[0028] In this embodiment: by setting up a high-efficiency heat dissipation motor assembly 4, the aluminum alloy protective shell 402 can physically protect the motor body 401 and resist external impact. The coolant flowing inside the spiral water cooling channel 403 can remove the heat generated by the motor body 401 during operation through forced circulation. At the same time, the spiral path can increase the flow length of the coolant, thereby expanding the heat exchange area and improving the heat dissipation effect on the motor body 401. The hose 404 can connect the spiral water cooling channel 403 to the external circulation equipment to ensure long-term stable transmission of coolant. In addition, the hose 404 is stretchable and can adapt to the flexible movement of the protective shell 402, further improving the flexibility of use.

[0029] Specifically, such as Figure 2 , Figure 4 As shown, the connecting post 501 is fixedly connected to the bottom of the protective shell 402, and an annular metal tube 502 is fixedly connected to the bottom of the connecting post 501.

[0030] Specifically, such as Figure 4 As shown, a dust collection hood 503 is fixedly connected to the bottom of the surface of the annular metal tube 502, and the number of dust collection hoods 503 is set to several and they are set at an angle.

[0031] Specifically, such as Figure 4 As shown, a corrugated negative pressure pipe 504 is fixedly connected to the surface of the annular metal pipe 502, and the other end of the corrugated negative pressure pipe 504 is fixedly connected to an external industrial vacuum cleaner.

[0032] In this embodiment: With the above configuration, the connecting post 501 serves as the connecting carrier between the protective shell 402 and the annular metal tube 502, fixing the bottom of the protective shell 402 to the annular metal tube 502, ensuring the stability of the dustproof component 5. The annular metal tube 502 can evenly distribute the negative pressure suction from the industrial vacuum cleaner to each dust hood 503, ensuring balanced suction for each dust hood 503. Simultaneously, the annular metal tube 502 can guide the dust generated during grinding towards the industrial vacuum cleaner, facilitating subsequent dust removal. The tilted dust hood 503 can be aimed directly at the grinding area. The system utilizes negative pressure suction to efficiently adsorb dust generated during grinding. The tilted angle design helps guide dust along the inner wall of the dust hood 503 to the annular metal tube 502, reducing dust retention within the dust hood 503 and improving dust collection efficiency. Furthermore, multiple dust hoods 503 can cover different areas of the grinding zone, ensuring all-around dust collection and preventing dust from spreading into the working environment. The corrugated negative pressure tube 504 can transmit the negative pressure generated by the external industrial vacuum cleaner to the annular metal tube 502. Its corrugated structure has a certain degree of flexibility, which can adapt to the displacement of the motor body 401 during operation, avoiding pipe breakage or air leakage caused by rigid connection.

[0033] Specifically, such as Figure 5As shown, a hydraulic damper 6 is fixedly connected to the top of the inner wall of the frame 3, and the bottom end of the piston rod of the hydraulic damper 6 is fixedly connected to the top of the protective shell 402.

[0034] Specifically, such as Figure 5 As shown, a helical spring 7 is sleeved on the surface of the hydraulic damper 6, and the two ends of the helical spring 7 are fixedly connected to the frame 3 and the protective shell 402 respectively.

[0035] In this embodiment: Through the above settings, the hydraulic damper 6 can absorb the vibration energy generated by the motor body 401 during operation through the flow damping effect of the internal hydraulic oil, reduce the amplitude of vibration transmitted to the frame 3, and avoid structural damage to the motor body 401 or the frame 3 caused by rigid collision. The helical spring 7 can provide elastic support for the protective shell 402, share the weight of the motor body 401 and part of the load. When the vibration or displacement of the motor body 401 causes the piston rod of the hydraulic damper 6 to be compressed, the helical spring 7 stores energy through elastic deformation. When the vibration decreases, the helical spring 7 releases energy to push the protective shell 402 to reset, thereby assisting the hydraulic damper 6 to achieve more stable vibration attenuation.

[0036] Specifically, such as Figure 1 , Figure 3 As shown, a grinding wheel 8 is bolted to the output end of the motor body 401, and a fixing plate 9 is provided below the grinding wheel 8. A cutting tool 10 is bolted to the top of the fixing plate 9.

[0037] Specifically, such as Figure 1 As shown, a PLC controller 11 is fixedly installed on the right side of the mounting platform 2. The motor body 401, the water cooling circulation equipment, and the industrial vacuum cleaner are all electrically connected to the PLC controller 11.

[0038] In this embodiment: With the above settings, the motor body 401 can drive the grinding wheel 8 to rotate at high speed, so as to generate grinding force to grind, sharpen or shape the cutting edge of the tool 10. The fixing plate 9 can fix the tool 10 stably in the designated position by bolts to ensure the positional accuracy of the tool 10 relative to the grinding wheel during grinding. The PLC controller 11 can coordinate the operation of the motor body 401, the water cooling circulation equipment and the industrial vacuum cleaner through a preset program to realize the automated control of the grinding process.

[0039] Working principle: The operator first selects the grinding program for the corresponding tool 10 through the PLC controller 11, then starts the motor body 401, and simultaneously starts the industrial vacuum cleaner and water cooling circulation equipment. The motor body 401 drives the grinding wheel 8 to rotate at high speed. The high-speed rotating grinding wheel 8 grinds the cutting edge of the tool 10 on the fixed clamping plate 9. The abrasive particles of the grinding wheel 8 cut the material of the tool 10, achieving a sharpening of the cutting edge. The water cooling circulation equipment delivers coolant to the spiral water cooling channel 403, allowing the coolant in the spiral water cooling channel 403 to circulate inside the protective shell 402, thereby removing the large amount of heat generated by the motor body 401 during operation and maintaining the operation of the motor body 401. When the operating temperature is within a safe range, the negative pressure suction generated during the operation of the industrial vacuum cleaner enters the annular metal tube 502 through the corrugated negative pressure pipe 504. Then, the annular metal tube 502 distributes the negative pressure suction evenly to each dust hood 503, so that the dust hood 503 can suck the dust and debris generated during the grinding process into the industrial vacuum cleaner. The internal filtration system of the industrial vacuum cleaner filters and purifies the dust. When the motor body 401 vibrates during operation, the hydraulic damper 6 can absorb the vibration energy through the damping movement of the piston rod, reducing the shaking of the protective shell 402. The helical spring 7 can provide elastic support, further buffering the vibration and ensuring the relative positional accuracy of the grinding wheel 8 and the cutting tool 10.

[0040] It should be noted that the specific structures, working principles, and usage methods of the industrial vacuum cleaners and water-cooled circulation equipment involved in this application are all existing technologies, and therefore have not been elaborated upon in the text.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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. A special motor structure for a knife grinding machine, comprising a base (1), characterized in that: The base (1) is provided with a mounting platform (2) on top, and a frame (3) is provided on top of the mounting platform (2). A high-efficiency heat dissipation motor assembly (4) is fixedly connected to the bottom of the frame (3). A dustproof assembly (5) is provided at the bottom of the high-efficiency heat dissipation motor assembly (4). The dustproof assembly (5) includes a connecting column (501). The high-efficiency heat dissipation motor assembly (4) includes a motor body (401), and a protective shell (402) is fixedly sleeved on the surface of the motor body (401). The protective shell (402) is made of aluminum alloy. A spiral water cooling channel (403) is opened inside the protective shell (402). Both ends of the spiral water cooling channel (403) are fixedly connected to flexible hoses (404). The flexible hoses (404) are fixedly connected to an external water cooling circulation device.

2. The structure of a special motor for a knife grinding machine according to claim 1, characterized in that: The connecting post (501) is fixedly connected to the bottom of the protective shell (402), and an annular metal tube (502) is fixedly connected to the bottom of the connecting post (501).

3. The structure of a special motor for a knife grinding machine according to claim 2, characterized in that: The bottom of the surface of the annular metal tube (502) is fixedly connected to a dust collection hood (503), and the number of dust collection hoods (503) is set to several and they are arranged at an angle.

4. The structure of a special motor for a knife grinding machine according to claim 2, characterized in that: The surface of the annular metal tube (502) is fixedly connected to a corrugated negative pressure tube (504), and the other end of the corrugated negative pressure tube (504) is fixedly connected to an external industrial vacuum cleaner.

5. The structure of a special motor for a knife grinding machine according to claim 1, characterized in that: A hydraulic damper (6) is fixedly connected to the top of the inner wall of the frame (3), and the bottom end of the piston rod of the hydraulic damper (6) is fixedly connected to the top of the protective shell (402).

6. The structure of a special motor for a knife grinding machine according to claim 5, characterized in that: The surface of the hydraulic damper (6) is fitted with a helical spring (7), and the two ends of the helical spring (7) are fixedly connected to the frame (3) and the protective shell (402) respectively.

7. The structure of a special motor for a knife grinding machine according to claim 1, characterized in that: The output end of the motor body (401) is bolted with a grinding wheel (8), and a fixing plate (9) is provided below the grinding wheel (8), and a cutting tool (10) is bolted to the top of the fixing plate (9).

8. The structure of a special motor for a knife grinding machine according to claim 1, characterized in that: A PLC controller (11) is fixedly installed on the right side of the mounting platform (2). The motor body (401), the water cooling circulation equipment, and the industrial vacuum cleaner are all electrically connected to the PLC controller (11).

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