Heat dissipation motor of internal mixer

Abstract

The heat dissipation motor comprises a motor main body and a cooling cylinder wrapping the outer side of the motor main body, a fan is arranged at the tail end of a main shaft of the motor main body, a cavity is formed in the cooling cylinder, and an opening is formed in the end face, opposite to the main shaft of the motor main body, of the cooling cylinder. A main shaft of the motor main body penetrates through the opening and is connected with a rotating shaft of the internal mixer, a water outlet pipe is connected to the opening, a plurality of ventilation holes are formed in the end face, opposite to the fan, of the cooling cylinder, and a water inlet pipe is arranged on the end face, so that the influence of the external environment on heat dissipation of the motor main body is reduced while heat dissipation of the motor is achieved; and the heat dissipation efficiency of the motor main body is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric motors, and more specifically relates to a heat dissipation electric motor for an internal mixer. Background Art

[0002] The closed rubber mixer is also called internal mixer. It is mainly used for plasticating and mixing rubber. The internal mixer is equipped with a closed chamber, in which one or more pairs of rotors with specific shapes rotating relatively are arranged. The polymer materials are plasticized and mixed intermittently under adjustable temperature and pressure. The rotation of the rotor is generally driven by an external motor.

[0003] Since the plasticization and mixing of rubber requires a certain temperature, and the temperature is generally over 100°C, the heat inside the closed chamber will be transferred to the main shaft of the motor and to the inside of the motor through the rotor and the shaft. Even if some of the heat is lost during the transfer process, it is still 60°C-70°C when it reaches the inside of the motor, while the internal temperature of the motor during normal operation is around 70°C. The heat dissipation method of traditional motors only sets a fan at the end of the main shaft of the motor to dissipate heat by blowing air to the motor casing. However, after being used in the internal mixer, the original fan heat dissipation efficiency is not enough, which leads to the increase of the motor temperature; affecting the normal operation of the motor, and the air temperature around the indoor internal mixer is also higher than that outdoors, which further reduces the heat dissipation efficiency of the motor.

[0004] Therefore, some internal mixer manufacturers will switch to water-cooled motors (set cooling channels on the motor casing and pass cooling water to dissipate heat), and then connect the inlet and outlet water joints on the water-cooled motor to the water cooling circulation mechanism of the internal mixer to ensure the normal operation of the motor.

[0005] However, water-cooled motors have high requirements for sealing, which results in relatively high costs for water-cooled motors, and subsequent maintenance costs are also higher than those for ordinary motors. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a heat dissipation motor for an internal mixer, which improves the heat dissipation efficiency of the motor.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat dissipation motor for an internal mixer, comprising a motor body and a cooling cylinder wrapped around the outside of the motor body, a fan is arranged at the end of the main shaft of the motor body, a cavity is arranged in the cooling cylinder, an opening is arranged on the end face of the cooling cylinder opposite to the main shaft of the motor body, the main shaft of the motor body passes through the opening and is connected to the rotating shaft of the internal mixer, a water outlet pipe is connected to the opening, a plurality of ventilation holes are arranged on the end face of the cooling cylinder opposite to the fan, and a water inlet pipe is arranged on the end face.

[0008] Furthermore, a support leg is provided on the inner side wall of the cooling cylinder, and the interior of the support leg is hollow and connected to the cavity in the cooling cylinder.

[0009] Furthermore, the cooling cylinder includes a front cylinder and a rear cylinder, the front cylinder and the rear cylinder are detachably connected, the opening is located in the front cylinder, and the ventilation hole is located in the rear cylinder.

[0010] Furthermore, a connecting block is provided on the front tube, a connecting groove is provided on the connecting block, the connecting groove is communicated with the cavity on the front tube, the connecting end of the rear tube is plugged into the connecting groove, and a sealing member is provided in the connecting groove.

[0011] Furthermore, the width of the cavity on the end surface of the rear tube is greater than the width of the cavity at other positions.

[0012] Compared with the prior art, the utility model has the following beneficial effects: cooling water enters from the water inlet pipe of the cooling cylinder and is discharged from the water outlet pipe for circulation. After the motor body is started, the fan is driven to rotate, and the air outside the cooling cylinder enters the cooling cylinder through the ventilation holes, and heat exchange occurs when passing through the ventilation holes, and then is blown to the motor body by the fan, and finally discharged from the opening at the other end of the cooling cylinder. The air in the cooling cylinder exchanges heat with the motor body during the flow process, and dissipates the heat of the motor, thereby reducing the influence of the external environment on the heat dissipation of the motor body. At the same time, the air in the cooling barrel can also exchange heat with the side wall of the cooling cylinder during the flow process, and then when the air flows to the opening, it can also exchange heat with the main shaft of the motor body, reducing the influence of external heat on the motor body, and effectively improving the heat dissipation efficiency of the motor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the heat dissipation motor of the internal mixer of the utility model.

[0014] Figure numerals: motor body 1; cooling cylinder 2; fan 3; cavity 4; opening 5; water outlet pipe 6; ventilation hole 7; water inlet pipe 8; support leg 9; front cylinder 10; rear cylinder 11; connecting block 12; connecting groove 13. 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 protection scope 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 motor for an internal mixer comprises a motor body 1 and a cooling cylinder 2 wrapped around the outside of the motor body 1, a fan 3 is provided at the end of the main shaft of the motor body 1, a cavity 4 is provided in the cooling cylinder 2, an opening 5 is provided on the end face of the cooling cylinder 2 opposite to the main shaft of the motor body 1, the main shaft of the motor body 1 passes through the opening 5 and is connected to the rotating shaft of the internal mixer, a water outlet pipe 6 is connected to the opening 5, a plurality of ventilation holes 7 are provided on the end face of the cooling cylinder 2 opposite to the fan 3, and a water inlet pipe 8 is provided on the end face.

[0019] Preferably in this embodiment, a water cooling circulation mechanism is provided outside the closed chamber of the conventional internal mixer, and therefore, the water inlet pipe 8 and the water outlet pipe 6 on the cooling cylinder 2 can be connected to the water cooling circulation mechanism.

[0020] like Figure 1 As shown, in this embodiment, preferably, a support leg 9 is provided on the inner side wall of the cooling cylinder 2, and the support leg 9 is hollow inside and connected to the cavity 4 in the cooling cylinder 2. The support leg 9 improves the support of the cooling cylinder 2 to avoid the side wall collapse.

[0021] like Figure 1 As shown, in the present embodiment, preferably, the cooling cylinder 2 comprises a front cylinder 10 and a rear cylinder 11, and the front cylinder 10 and the rear cylinder 11 are detachably connected, the opening 5 is located at the front cylinder 10, and the ventilation hole 7 is located at the rear cylinder 11. After the cooling cylinder 2 is disassembled as a whole into the front cylinder 10 and the rear cylinder 11, it is convenient to wrap the motor.

[0022] like Figure 1 As shown, in this embodiment, preferably, a connecting block 12 is provided on the front cylinder 10, a connecting groove 13 is provided on the connecting block 12, the connecting groove 13 is communicated with the cavity 4 on the front cylinder 10, the connecting end of the rear cylinder 11 is plugged into the connecting groove 13, and a sealing member is provided in the connecting groove 13.

[0023] like Figure 1 As shown, in this embodiment, preferably, the width of the cavity 4 on the end surface of the rear tube 11 is greater than the width of the cavity 4 at other positions, thereby increasing the time for air to exchange heat with the ventilation holes 7 after entering the ventilation holes 7.

[0024] like Figure 1 As shown, cooling water fills the cavity 4 in the cooling cylinder 2 through the water inlet and is discharged from the water outlet to realize the circulation of cooling water. After the motor body 1 is started, the fan 3 at the end of its main shaft rotates, and the air outside the cooling cylinder 2 enters the cooling cylinder 2 through the ventilation hole 7, and heat exchange occurs when passing through the ventilation hole 7, thereby reducing the temperature of the incoming air, and then is blown to the motor body 1 by the fan 3, and finally discharged from the opening 5 at the other end. The air in the cooling cylinder 2 exchanges heat with the motor body 1 during the flow process, thereby dissipating the heat of the motor, and the cooling air can also exchange heat with the cooling water in the cavity 4 on the side wall of the cooling cylinder 2 during the flow process. In this way, when the cooling air flows to the opening 5, it can also exchange heat with the main shaft of the motor body 1, absorb the heat transferred from the shaft of the internal mixer, and reduce the influence of external heat on the motor body 1.

[0025] 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 motor for an internal mixer, characterized in that: It includes a motor body and a cooling cylinder wrapped around the outside of the motor body, a fan is arranged at the end of the main shaft of the motor body, a cavity is arranged in the cooling cylinder, an opening is arranged on the end face of the cooling cylinder opposite to the main shaft of the motor body, the main shaft of the motor body passes through the opening and is connected to the rotating shaft of the internal mixer, a water outlet pipe is connected to the opening, a plurality of ventilation holes are arranged on the end face of the cooling cylinder opposite to the fan, and a water inlet pipe is arranged on the end face.

2. The heat dissipation motor of the internal mixer according to claim 1, characterized in that: A support leg is arranged on the inner side wall of the cooling cylinder, and the inside of the support leg is hollow and connected to the cavity in the cooling cylinder.

3. The heat dissipation motor of the internal mixer according to claim 2, characterized in that: The cooling cylinder comprises a front cylinder and a rear cylinder, the front cylinder and the rear cylinder are detachably connected, the opening is located at the front cylinder, and the ventilation hole is located at the rear cylinder.

4. The heat dissipation motor of the internal mixer according to claim 3, characterized in that: The front tube is provided with a connecting block, the connecting block is provided with a connecting groove, the connecting groove is communicated with the cavity on the front tube, the connecting end of the rear tube is plugged into the connecting groove, and a sealing member is provided in the connecting groove.

5. The heat dissipation motor of the internal mixer according to claim 4, characterized in that: The width of the cavity on the end surface of the rear cylinder is greater than the width of the cavity at other positions.

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