Motor heat dissipation protection device for nanometer grinding

Abstract

The utility model discloses a nanometer grinding motor heat dissipation protective device, which comprises a protective cover, a motor is arranged in the protective cover, a cooling mechanism is arranged in the protective cover, the cooling mechanism comprises a cooling cylinder, an injection pipe and a fan, the cooling cylinder is rotatably connected with a connecting shaft, one end of the connecting shaft is connected with the fan, and the other end of the connecting shaft is connected with the injection pipe. The centrifugal fan and the spraying end of the spraying pipe are both located in the cooling cylinder, an end face inlet of the centrifugal fan right faces the spraying end of the spraying pipe, the fan is located between the motor and the cooling cylinder, the cooling cylinder is made of materials easy to conduct heat, and the cooling cylinder is connected with a drainage pipe. The internal motor is cooled while being sealed and protected by the protective cover, so that the normal operation of the motor is prevented from being influenced by overheating.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric motors, and more specifically relates to a heat dissipation protection device for electric motors with nano grinding. Background Art

[0002] When grinding materials, the nano grinder usually uses a motor on one side of the grinding cylinder to drive the grinding shaft inside the grinding cylinder to rotate at high speed. Since the particles are very small during nano grinding, the dust concentration in the surrounding air will inevitably increase during long-term use of the equipment, so dust protection for the motor needs to be considered.

[0003] The patent with publication number CN208894326U discloses a novel nano-grinder, which places a motor in a protective frame, that is, the protective frame is used to reduce the impact of dust on the motor, thereby ensuring the normal operation of the motor.

[0004] However, directly placing the motor in the protective frame will result in poor heat dissipation of the motor. In addition, the heat transferred from the grinding shaft during grinding will easily cause the motor to overheat and affect its normal operation. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a heat dissipation protection device for a nano-grinding motor, which can prevent dust while reducing temperature and dissipating heat, thereby preventing overheating from affecting its normal operation.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a nano-grinding motor heat dissipation protection device, comprising a protective cover, a motor is located in the protective cover, a cooling mechanism is arranged in the protective cover, the cooling mechanism comprises a cooling cylinder, an injection pipe and a fan, a connecting shaft is rotatably connected to the cooling cylinder, one end of the connecting shaft is connected to the fan, and the other end is provided with a centrifugal fan, the centrifugal fan and the injection end of the injection pipe are both located in the cooling cylinder, and the end face inlet of the centrifugal fan is opposite to the injection end of the injection pipe, the fan is located between the motor and the cooling cylinder, and the cooling cylinder is made of a heat-conducting material, and a drain pipe is connected to the cooling cylinder.

[0007] Furthermore, a plurality of cooling fins are arranged on the side of the cooling cylinder facing the fan, and the cooling fins are made of heat-conducting material.

[0008] Furthermore, a support frame is provided between the connecting shaft and the protective tube, and the connecting shaft is rotatably connected to the support frame.

[0009] Furthermore, the injection pipe and the drainage pipe are respectively connected to a cooling mechanism, and the cooling mechanism is used to cool the grinding cylinder.

[0010] Furthermore, a high-pressure injection port is provided on the injection end of the injection pipe.

[0011] Furthermore, a guide convex strip is arranged on the inner wall of the cooling cylinder at a side connected to the cooling fin, and a guide groove is formed between adjacent guide convex strips.

[0012] Compared with the prior art, the utility model has the following beneficial effects: when the motor starts to grind, the cooling mechanism connected to the grinding cylinder starts to circulate, a part of the cooling water enters the injection pipe, and then is sprayed to the centrifugal fan through the high-pressure injection port on the injection end of the injection pipe, and the cooling water diffuses from the center of the centrifugal fan to the surroundings, thereby driving the centrifugal fan to rotate, and is thrown out from between the blades of the centrifugal fan to the inner wall of the cooling cylinder, and the rotation of the centrifugal fan drives the fan through the connecting shaft, and the rotation of the fan can be used to cool the motor and dissipate heat, thereby achieving the sealing protection of the protective cover while cooling the internal motor to avoid overheating affecting its normal operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of the structure of the heat dissipation protection device of the motor for nano-grinding.

[0014] Reference numerals: protective cover 1; cooling cylinder 2; injection pipe 3; fan 4; connecting shaft 5; centrifugal fan 6; drain pipe 7; cooling fin 8; support frame 9; grinding cylinder 10; guide rib 11; motor 12. DETAILED DESCRIPTION

[0015] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present invention.

[0016] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" and "a number" is two or more, unless otherwise clearly and specifically defined.

[0017] Reference Figure 1 The utility model is further described.

[0018] A heat dissipation protection device for a nano-grinding motor comprises a protective cover 1, a motor 12 is located in the protective cover 1, a cooling mechanism is arranged in the protective cover 1, the cooling mechanism comprises a cooling cylinder 2, an injection pipe 3 and a fan 4, a connecting shaft 5 is rotatably connected to the cooling cylinder 2, one end of the connecting shaft 5 is connected to the fan 4, and the other end is provided with a centrifugal fan 6, the centrifugal fan 6 and the injection end of the injection pipe 3 are both located in the cooling cylinder 2, and the end face inlet of the centrifugal fan 6 is directly opposite to the injection end of the injection pipe 3, the fan 4 is located between the motor 12 and the cooling cylinder 2, and the cooling cylinder 2 is made of a heat-conducting material, and a drain pipe 7 is connected to the cooling cylinder 2.

[0019] like Figure 1 As shown, in this embodiment, preferably, a plurality of cooling fins 8 are provided on the side of the cooling tube 2 facing the fan 4, and the cooling fins 8 are made of a heat-conducting material.

[0020] like Figure 1 As shown, in this embodiment, preferably, a support frame 9 is provided between the connecting shaft 5 and the protective tube, and the connecting shaft 5 is rotatably connected to the support frame 9.

[0021] like Figure 1 As shown, in this embodiment, preferably, the injection pipe 3 and the drain pipe 7 are respectively connected to a cooling mechanism, and the cooling mechanism is used to cool the grinding cylinder 10. That is, when the material is ground in the grinding cylinder 10, cooling water needs to be introduced into the cooling cavity of the outer layer of the grinding tube to avoid excessive grinding temperature.

[0022] Preferably in this embodiment, a high-pressure injection port is provided on the injection end of the injection pipe 3 .

[0023] like Figure 1 As shown, in this embodiment, preferably, a guide rib 11 is provided on the inner wall of the cooling cylinder 2 on the side connected to the cooling fin 8 , and a guide groove is formed between adjacent guide ribs 11 to increase the contact area between the cooling water and the cooling cylinder 2 .

[0024] like Figure 1 As described above, when the motor 12 starts to grind, the cooling mechanism connected to the grinding cylinder 10 starts to circulate, and a portion of the cooling water enters the injection pipe 3, and then is sprayed to the centrifugal fan 6 through the high-pressure injection port on the injection end of the injection pipe 3. The cooling water diffuses from the center of the centrifugal fan 6 to the surroundings, thereby driving the centrifugal fan 6 to rotate, and is thrown out from between the blades of the centrifugal fan 6 to the inner wall of the cooling cylinder 2. The rotation of the centrifugal fan 6 drives the fan 4 through the connecting shaft 5, and the rotation of the fan 4 can be used to cool the motor 12, thereby achieving the sealing protection of the protective cover 1 while cooling the internal motor 12 to avoid overheating affecting its normal operation.

[0025] The heat exchange between the cooling water and the hot air is realized by the cooling fins 8. The cooling water that absorbs the heat flows into the drain pipe 7 along the guide groove, and then enters the cooling mechanism through the drain pipe 7 for circulation.

[0026] Preferably, in this embodiment, the rotation of the fan 4 can absorb the hot air around the motor 12 and blow the hot air toward the cooling fins 8, or it can first absorb the cold air around the cooling fins 8 and blow the cold air toward the motor.

[0027] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A heat dissipation protection device for a nano-grinding motor, characterized in that: The invention comprises a protective cover, wherein the motor is located in the protective cover, wherein a cooling mechanism is arranged in the protective cover, wherein the cooling mechanism comprises a cooling cylinder, an injection pipe and a fan, wherein a connecting shaft is rotatably connected to the cooling cylinder, wherein one end of the connecting shaft is connected to the fan, and the other end is provided with a centrifugal fan, wherein the injection end of the centrifugal fan and the injection pipe are both located in the cooling cylinder, and an end face inlet of the centrifugal fan faces the injection end of the injection pipe, wherein the fan is located between the motor and the cooling cylinder, and the cooling cylinder is made of a heat-conducting material, and a drain pipe is connected to the cooling cylinder.

2. The heat dissipation protection device for a nano-grinding motor according to claim 1, characterized in that: A plurality of cooling fins are arranged on the side of the cooling cylinder facing the fan, and the cooling fins are made of heat-conducting material.

3. The heat dissipation protection device for a motor for nano-grinding according to claim 2 is characterized in that: A support frame is arranged between the connecting shaft and the protective tube, and the connecting shaft is rotatably connected to the support frame.

4. The heat dissipation protection device for a motor for nano-grinding according to claim 3 is characterized in that: The injection pipe and the drain pipe are respectively connected to a cooling mechanism, and the cooling mechanism is used for cooling the grinding cylinder.

5. The heat dissipation protection device for a motor for nano-grinding according to claim 4 is characterized in that: A high-pressure injection port is arranged on the injection end of the injection pipe.

6. The heat dissipation protection device for a motor for nano-grinding according to claim 5, characterized in that: A flow guiding convex strip is arranged on the inner wall of the cooling cylinder at one side connected with the cooling fin, and a flow guiding groove is formed between adjacent flow guiding convex strips.

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