Novel motor cooling device

Abstract

The utility model discloses a novel motor cooling device which comprises a grinding machine outer shell, a driving motor is embedded in the grinding machine outer shell, the output end of the driving motor is connected with an eccentric wheel through a rotating shaft, a cooling fan is installed on the outer surface of the eccentric wheel, and a detachable structure is arranged between the cooling fan and the eccentric wheel. A follow-up bearing is installed in the eccentric wheel, an axis structure is installed in the follow-up bearing in an embedded mode, and a polishing disc is installed below the axis structure. According to the utility model, the uniform heat dissipation teeth are uniformly distributed on the outer ring of the whole motor stator on the shell of the motor stator, and the outer cover is additionally arranged on the outer ring of the motor stator, so that the uniform flow of air on the outer circle of the motor stator is ensured, and heat generated by the motor is taken away; the energy-saving effect is better without adding external wind power, the motor can be cooled while working, and the cooling effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to a grinding machine technical field, concretely is a novel motor cooling device. BACKGROUND

[0002] The electric grinder is reciprocating electric polishing grinder (also known as file grinder), and is widely used in finishing and surface polishing treatment of die industry, and is a replacement product of similar pneumatic products.

[0003] The utility model discloses an electric grinder, including: polishing head, motor, and polishing head are connected and are used to drive the operation of polishing head, are equipped with heat dissipation air outlet, controller, set up on the motor and be used to control the operation of motor, close to heat dissipation air outlet, its close to heat dissipation air outlet's one side is equipped with multiple heat dissipation fins, and each two adjacent heat dissipation fins are separated and enclose heat dissipation channel, and heat dissipation channel and heat dissipation air outlet are communicated. The electric grinder of the utility model can export the heat of the controller by the heat dissipation fin, and also can export the heat on the heat dissipation fin by the air flow of the heat dissipation air outlet through the heat dissipation channel, without setting the heat dissipation fan on the controller or setting the heat dissipation structure with high cost and complex structure on the controller, can realize the efficient heat dissipation of the controller, with low cost, and simplify the structure, make the overall structure of the electric grinder more compact, smaller, more convenient for packing, transportation and storage.

[0004] The electric grinder in the prior art is inconvenient to assemble and disassemble, and the cooling and heat dissipation effect is poor, which can easily lead to overheating of the motor during operation, affecting the service life and use effect, so a new type of motor cooling device needs to be developed. UTILITY MODEL CONTENTS

[0005] The utility model discloses a novel motor cooling device to solve the problem of the electric grinder in the prior art that is inconvenient to assemble and disassemble, and the cooling and heat dissipation effect is poor, which can easily lead to overheating of the motor during operation, affecting the service life and use effect.

[0006] To achieve the above object, the utility model provides the following technical scheme: a novel motor cooling device, including grinder shell body, the inside embedding installation of drive motor of grinder shell body, the output end of drive motor is connected with eccentric wheel through the pivot, the outer surface of eccentric wheel is installed with heat dissipation fan, and the detachable structure between heat dissipation fan and eccentric wheel, the inside embedding installation of follow-up bearing of eccentric wheel, the inside embedding installation of axle structure of follow-up bearing, the polishing disc of the lower portion of axle structure, the outer surface of drive motor is provided with heat dissipation tooth structure.

[0007] Preferably, the upper end surface of the polishing machine outer shell is fixedly connected with a polishing machine fixing plate through connecting screws, the surface of the polishing machine fixing plate is provided with a plurality of positioning screw holes, and locking bolts are installed at four corner positions of the surface of the polishing machine fixing plate.

[0008] Preferably, the heat dissipation fan is internally provided with a clamping groove and an eccentric wheel.

[0009] Preferably, the outer surface of the polishing machine outer shell is provided with a waterproof sealing ring.

[0010] Preferably, the upper end surface of the polishing disc is provided with a fixing shaft at the center, and the polishing disc is fixedly connected with the shaft core structure through the fixing shaft.

[0011] Preferably, the dust cover and the clasp structure are tightly fixed between the dust cover and the clasp structure.

[0012] Preferably, the dust cover and the clasp structure are tightly fixed between the dust cover and the clasp structure.

[0013] Preferably, the heat dissipation tooth structure and the polishing machine outer shell are provided with a channel gap structure.

[0014] Compared with the prior art, the polishing machine has the advantages that:

[0015] The motor stator shell is provided with uniform heat dissipation teeth, the entire motor stator outer circle is uniformly covered, an outer cover is additionally arranged on the motor stator outer circle, the air volume uniformly flows along the motor stator outer circle, the heat generated by the motor is taken away, the fan is arranged at one end of the motor and rotates together with the motor shaft, external air is not needed to be added to promote the energy-saving effect, the motor can be cooled while working, the motor stator heat dissipation teeth and the shell are provided with a channel, when the motor works and the fan rotates, air flows to the other end at a certain speed from one end of the motor, the air speed and the flow rate achieve the purpose of better cooling effect. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is an explosion decomposition structure schematic view of the utility model;

[0017] Fig. 2 It is an overall structure schematic view of the utility model;

[0018] Fig. 3 It is a bottom structure schematic view of the utility model.

[0019] In the diagram: 1. Connecting screw; 2. Grinding machine mounting plate; 3. Locking bolt; 4. Grinding machine housing; 5. Waterproof sealing ring; 6. Drive motor; 7. Cooling fan; 8. Follower bearing; 9. Dust cover; 10. Snap ring structure; 11. Shaft structure; 12. Polishing disc; 13. Eccentric wheel; 14. Fixed shaft; 15. Positioning screw hole; 16. Heat dissipation tooth structure. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please see Figs. 1-3 This utility model provides an embodiment of a novel motor cooling device, comprising a grinder housing 4, a drive motor 6 embedded inside the grinder housing 4, an eccentric wheel 13 connected to the output end of the drive motor 6 via a rotating shaft, a cooling fan 7 mounted on the outer surface of the eccentric wheel 13, the cooling fan 7 and the eccentric wheel 13 being detachable, a follower bearing 8 mounted inside the eccentric wheel 13, a shaft structure 11 embedded inside the follower bearing 8, a polishing disc 12 mounted below the shaft structure 11, and a heat dissipation tooth structure 16 provided on the outer surface of the drive motor 6. By making the heat dissipation tooth structure 16 evenly distributed across the entire outer ring of the motor stator housing, and adding a grinder housing 4 on the outer ring of the motor stator, the airflow is ensured to flow evenly on the outer ring of the motor stator, thus carrying away the heat generated by the motor.

[0022] Furthermore, a grinding machine mounting plate 2 is fixedly connected to the upper surface of the grinding machine housing 4 by connecting screws 1. The surface of the grinding machine mounting plate 2 is provided with multiple positioning screw holes 15, which facilitates quick installation and fixation between the grinding machine housing 4 and the grinding machine mounting plate 2. Locking bolts 3 are installed at the four corners of the surface of the grinding machine mounting plate 2, which facilitates quick installation and fixation between the grinding machine mounting plate 2 and the equipment.

[0023] Furthermore, the cooling fan 7 has a slot inside that corresponds to and engages with the eccentric wheel 13, which provides the advantage of easy installation and fixation.

[0024] Furthermore, a waterproof sealing ring 5 is installed on the outer surface of the grinding machine housing 4, which provides a good sealing and waterproof effect.

[0025] Furthermore, a fixed shaft 14 is installed at the center of the upper surface of the polishing disc 12. The polishing disc 12 is connected and fixed to the shaft structure 11 through the fixed shaft 14, which facilitates the quick installation and fixing of the polishing disc 12.

[0026] Furthermore, a dust cover 9 and a retaining ring structure 10 are respectively installed below the follower bearing 8, which provides a good sealing and dust protection effect.

[0027] Furthermore, the dust cover 9 and the retaining ring structure 10 are tightly fitted and fixed together, and both the dust cover 9 and the retaining ring structure 10 are sleeved and fixed on the shaft structure 11, which has a good installation, fixing and sealing protection effect.

[0028] Furthermore, a channel gap structure is provided between the heat dissipation tooth structure 16 and the outer shell 4 of the grinder. When the drive motor 6 works, it drives the cooling fan 7 to rotate. The air flows from one end of the motor to the other end at a certain speed. The air speed and flow rate achieve a better cooling effect.

[0029] Working Principle: During use, a drive motor 6 is embedded inside the outer casing 4 of the grinder. The output end of the drive motor 6 is connected to an eccentric wheel 13 via a rotating shaft. A cooling fan 7 is mounted on the outer surface of the eccentric wheel 13. A follower bearing 8 is installed inside the eccentric wheel 13. A dust cover 9 and a retaining ring structure 10 are installed below the follower bearing 8, providing good sealing and dust protection. A shaft structure 11 is embedded inside the follower bearing 8. A polishing disc 12 is installed below the shaft structure 11. The polishing disc 12 is connected and fixed to the shaft structure 11 via a fixed shaft 14, facilitating quick installation and fixation of the polishing disc 12. Turning on the drive motor 6 allows for rapid drive control of the eccentric wheel 13, which drives the cooling fan 7 and the polishing disc 12 to rotate at high speed. The cooling fan 7... It can achieve good air cooling and heat dissipation effect on the motor part. The cooling fan 7 is installed at one end of the motor and rotates with the motor shaft. No external air force is needed, which makes the energy-saving effect better. The motor can cool itself while working. The outer surface of the drive motor 6 is provided with a heat dissipation tooth structure 16. By making the heat dissipation tooth structure 16 evenly distributed on the outer ring of the motor stator, and adding a grinding machine housing 4 on the outer ring of the motor stator, it is ensured that the air volume flows evenly on the outer ring of the motor stator, carrying away the heat generated by the motor. A channel gap structure is provided between the heat dissipation tooth structure 16 and the grinding machine housing 4. When the drive motor 6 works and drives the cooling fan 7 to rotate, the air flows from one end of the motor to the other end at a certain speed. The air speed and flow rate achieve the purpose of better cooling effect.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 process, method, article, or apparatus.

[0031] All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment are all conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, and will not be described in detail here.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel motor cooling device, comprising a grinding machine housing (4), characterized in that, A drive motor (6) is embedded inside the outer shell (4) of the polisher. The output end of the drive motor (6) is connected to an eccentric wheel (13) via a rotating shaft. A cooling fan (7) is installed on the outer surface of the eccentric wheel (13). The cooling fan (7) and the eccentric wheel (13) are detachable. A follower bearing (8) is installed inside the eccentric wheel (13). A shaft structure (11) is embedded inside the follower bearing (8). A polishing disc (12) is installed below the shaft structure (11). A heat dissipation tooth structure (16) is provided on the outer surface of the drive motor (6).

2. The novel motor cooling device according to claim 1, characterized in that: The upper surface of the outer shell (4) of the grinder is fixedly connected to a grinder fixing plate (2) by connecting screws (1). The surface of the grinder fixing plate (2) is provided with multiple positioning screw holes (15), and locking bolts (3) are installed at the four corners of the surface of the grinder fixing plate (2).

3. The novel motor cooling device according to claim 1, characterized in that: The cooling fan (7) has a slot inside that is fitted into the eccentric wheel (13).

4. The novel motor cooling device according to claim 1, characterized in that: A waterproof sealing ring (5) is installed on the outer surface of the grinding machine housing (4).

5. A novel motor cooling device according to claim 1, characterized in that: A fixed shaft (14) is installed at the center of the upper surface of the polishing disc (12), and the polishing disc (12) is connected and fixed to the shaft structure (11) through the fixed shaft (14).

6. The novel motor cooling device according to claim 1, characterized in that: A dust cover (9) and a retaining ring structure (10) are respectively installed below the follower bearing (8).

7. A novel motor cooling device according to claim 6, characterized in that: The dust cover (9) and the retaining ring structure (10) are tightly fitted and fixed together, and both the dust cover (9) and the retaining ring structure (10) are sleeved and fixed on the shaft structure (11).

8. A novel motor cooling device according to claim 1, characterized in that: A channel gap structure is provided between the heat dissipation tooth structure (16) and the outer shell (4) of the grinder.

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