A low-noise motor output shaft

Abstract

This utility model relates to the field of motor technology and discloses a low-noise motor output shaft, including a motor output shaft body. A sound insulation mechanism for reducing noise is provided on the outer side of the motor output shaft body, and a lubrication mechanism for injecting grease into the outer wall of the sound insulation mechanism. This utility model confines noise within the sound insulation enclosure, preventing noise leakage. The use of sound insulation cotton absorbs and isolates noise, further reducing its propagation. The lubrication mechanism lubricates the motor output shaft during rotation, reducing friction and thus lowering noise levels. It also extends the service life of the motor output shaft, achieving a noise reduction function for existing motor output terminals.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to a low-noise motor output shaft. Background Technology

[0002] As a widely used power device in modern industry and daily life, the performance of the output end of the electric motor has a crucial impact on the overall operation of the motor. During the operation of the motor, noise is often generated at the output end, which not only affects the operating environment of the motor, but may also damage the service life and performance of the motor.

[0003] Existing motor output terminals do not have noise reduction capabilities. The main reason for noise generation is the lack of effective sound insulation at the motor output terminal, which allows noise generated inside the motor to easily propagate into the external environment, causing unnecessary noise pollution. This affects user comfort and the quality of the motor itself. Therefore, those skilled in the art provide a low-noise motor output shaft to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a low-noise motor output shaft to solve the problems mentioned above.

[0005] This utility model provides the following technical solution: a low-noise motor output shaft, including a motor output shaft body, a coupling is fixedly mounted on the surface of the motor output shaft body, two sets of bearings are fixedly mounted on both ends of the motor output shaft body near the coupling, a sound insulation mechanism for reducing the noise of the motor output shaft body is provided on the outer side of the motor output shaft body, and a lubrication mechanism for injecting grease into the sound insulation mechanism is provided on the outer wall of the sound insulation mechanism.

[0006] As a preferred embodiment of the above technical solution, the sound insulation mechanism includes a sound insulation cover fixedly mounted on the surface of the motor output shaft body. The sound insulation cover is located outside the coupling and the two sets of bearings. Two sets of sealing grooves are provided at the openings at both ends of the sound insulation cover. Two sets of sealing covers are fixedly connected to the ends of the sound insulation cover near the two sets of sealing grooves through flanges. Sealing strips are fixedly connected to the sides of the two sets of sealing covers near the two sets of sealing grooves. The two sets of sealing strips are engaged inside the two sets of sealing grooves.

[0007] As a preferred embodiment of the above technical solution, the interior of the top of the soundproof cover is connected to a connecting pipe through an inlet, and a valve plate is installed at the bottom of the interior of the inlet of the soundproof cover through a hinge.

[0008] As a preferred embodiment of the above technical solution, a spring telescopic rod is installed inside the connecting pipe via a hinge, and the bottom end of the spring telescopic rod is fixedly connected to the top end of the valve plate via the hinge.

[0009] As a preferred embodiment of the above technical solution, the inner wall of the soundproof cover is fitted with sound-insulating cotton through an opening in the mounting groove. The sound-insulating cotton is made of polyester fiber.

[0010] As a preferred embodiment of the above technical solution, the lubrication mechanism includes a storage tank that is threadedly connected to a connecting pipe. A piston is slidably installed inside the storage tank, and a push rod is fixedly connected to one side of the piston, with one end of the push rod extending out of the interior of the storage tank.

[0011] As a preferred embodiment of the above technical solution, the lubrication mechanism further includes a cylinder mounted on the outer wall of the soundproof enclosure via a mounting bracket. The telescopic end of the cylinder is fixedly connected to one end of the push rod via a connecting rod, and the cylinder is located on one side of the storage tank.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention confines noise within a soundproof enclosure, preventing leakage. Sound-absorbing cotton absorbs and isolates noise, further reducing its propagation. A lubrication mechanism lubricates the motor output shaft during rotation, reducing friction and noise generation. It also extends the lifespan of the motor output shaft, effectively reducing noise at the motor output end. This invention addresses the problem that noise primarily originates from the lack of effective sound insulation at the motor output end, allowing internal noise to easily propagate into the external environment and cause unnecessary noise pollution. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of the output shaft of a low-noise motor;

[0015] Figure 2 This is a schematic diagram of the cross-section of the output shaft of a low-noise motor.

[0016] Figure 3 A schematic diagram of a sound insulation mechanism in the output shaft of a low-noise motor;

[0017] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0018] Figure 5 This is a schematic diagram of the lubrication mechanism in the output shaft of a low-noise motor.

[0019] In the diagram: 1. Motor output shaft body; 101. Coupling; 102. Bearing; 2. Sound insulation mechanism; 201. Sound insulation cover; 202. Sealing groove; 203. Sealing cover; 204. Sealing strip; 205. Connecting pipe; 206. Valve plate; 207. Spring telescopic rod; 208. Sound insulation cotton; 3. Lubrication mechanism; 301. Storage tank; 302. Piston; 303. Push rod; 304. Cylinder. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] Please see Figures 1-5 As shown, this utility model provides a technical solution: a low-noise motor output shaft, including a motor output shaft body 1, a coupling 101 fixedly mounted on the surface of the motor output shaft body 1, and two sets of bearings 102 fixedly mounted on both ends of the motor output shaft body 1 near the coupling 101.

[0022] One end of the motor output shaft body 1 is connected to an external power device via a coupling 101 to transmit power. The other end of the motor output shaft body 1 is connected to the motor housing or other fixed structure via a bearing 102 to ensure the stability and reliability of the motor output shaft body 1 during operation.

[0023] As one implementation method in this embodiment, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a sound insulation mechanism 2 for reducing the noise of the motor output shaft body 1 is provided on the outer side of the motor output shaft body 1. The sound insulation mechanism 2 includes a sound insulation cover 201 fixedly fitted on the surface of the motor output shaft body 1. The sound insulation cover 201 is located outside the coupling 101 and the two sets of bearings 102. Two sets of sealing grooves 202 are provided at the openings at both ends of the sound insulation cover 201. Two sets of sealing covers 203 are fixedly connected to the ends of the sound insulation cover 201 near the two sets of sealing grooves 202 through flanges. The two sets of sealing covers 203 are fixedly connected to the sides of the two sets of sealing grooves 202 with sealing... The two sets of sealing strips 204 are engaged inside the two sets of sealing grooves 202. The top of the soundproof cover 201 is connected to the connecting pipe 205 through the opening. The bottom of the inside of the soundproof cover 201 is installed with a valve plate 206 through a hinge. The inside of the connecting pipe 205 is installed with a spring telescopic rod 207 through a hinge. The bottom of the spring telescopic rod 207 is fixedly connected to the top of the valve plate 206 through a hinge. The inner wall of the soundproof cover 201 is installed with sound insulation cotton 208 through the opening. The sound insulation cotton 208 is made of polyester fiber.

[0024] The sound insulation cotton 208 has excellent sound absorption and heat insulation properties, effectively absorbing the noise generated by the motor output shaft body 1. Through the barrier of the sound insulation cover 201, the noise is confined inside the cover, preventing noise leakage. Furthermore, the two ends of the sound insulation cover 201 are sealed through the cooperation of flanges, sealing caps 203, and sealing strips 204, preventing noise leakage from both ends of the cover and further improving the sound insulation effect.

[0025] When the soundproof cover 201 is filled with grease, the spring telescopic rod 207 pushes the valve plate 206 to move under the action of the spring telescopic rod 207, so that the inside of the soundproof cover 201 is sealed, preventing the grease from overflowing into the soundproof cover 201 and causing waste.

[0026] As one implementation method in this embodiment, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the outer wall of the sound insulation mechanism 2 is provided with a lubrication mechanism 3 for injecting grease into the interior of the sound insulation mechanism 2. The lubrication mechanism 3 includes a storage tank 301 threadedly connected to the connecting pipe 205. A piston 302 is slidably installed inside the storage tank 301. A push rod 303 is fixedly connected to one side of the piston 302, and one end of the push rod 303 extends out of the interior of the storage tank 301. The lubrication mechanism 3 also includes a cylinder 304 mounted on the outer wall of the sound insulation cover 201 by a mounting bracket. The telescopic end of the cylinder 304 is fixedly connected to one end of the push rod 303 through a connecting rod, and the cylinder 304 is located on one side of the storage tank 301.

[0027] The grease is stored in storage tank 301, and then storage tank 301 is threaded to one end of connecting pipe 205. Grease, commonly known as butter, is a solid or semi-solid lubricant, mainly composed of base oil (75-90%), thickener (10-20%) and additives (less than 5%). It belongs to colloidal dispersants. Its working principle is that the thickener keeps the oil in the position where lubrication is needed, and releases the oil under load to play a lubricating role.

[0028] When lubrication of the motor output shaft body 1 is required, cylinder 304 is activated. The telescopic end of cylinder 304 drives the connecting rod to move, which in turn drives the push rod 303 to move. The push rod 303 drives the piston 302 to slide inside the storage tank 301. The piston 302 injects the grease inside the storage tank 301 into the soundproof cover 201 through the connecting pipe 205. At this time, as the grease is pushed into the connecting pipe 205 by the piston 302, the valve plate 206 is opened, allowing the grease to pass smoothly through the connecting pipe 205 and fill the inner wall of the soundproof cover 201. This lubricates the motor output shaft body 1, the coupling 101, and the two sets of bearings 102, preventing excessive friction between the coupling 101 and the two sets of bearings 102 and the motor output shaft body 1 during operation, thus avoiding excessive noise during operation of the motor output shaft body 1.

[0029] Working principle: When lubrication of the motor output shaft body 1 is required, cylinder 304 is activated. The extension end of cylinder 304 drives the connecting rod to move, which in turn drives the push rod 303 to move. The push rod 303 drives the piston 302 to slide inside the storage tank 301. The piston 302 injects the grease inside the storage tank 301 into the soundproof cover 201 through the connecting pipe 205. At this time, as the grease is pushed into the connecting pipe 205 by the piston 302, the force opens the valve plate 206, allowing the grease to smoothly pass through the connecting pipe 205 and fill the inner wall of the soundproof cover 201, thereby lubricating the motor output shaft body 1, the coupling 101, and the two sets of bearings 102, preventing the coupling from slipping. When the device 101 and the two sets of bearings 102 are in operation with the motor output shaft body 1, a large amount of friction is generated, resulting in a large amount of noise when the motor output shaft body 1 is running. When the soundproof cover 201 is full of grease, under the action of the spring telescopic rod 207, the spring telescopic rod 207 pushes the valve plate 206 to move, so that the inside of the soundproof cover 201 is sealed, preventing the grease from overflowing into the soundproof cover 201 and causing waste. Through the setting of the lubrication mechanism 3 and the soundproof mechanism 2, it is convenient to lubricate and soundproof the motor output shaft body 1, the coupling 101 and the two sets of bearings 102, thereby reducing the noise generated by the motor output shaft body 1 during operation.

[0030] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A low noise motor output shaft comprising a motor output shaft body (1), characterized in that: A coupling (101) is fixedly mounted on the surface of the motor output shaft body (1). Two sets of bearings (102) are fixedly mounted on both ends of the motor output shaft body (1) near the coupling (101). A sound insulation mechanism (2) for reducing the noise of the motor output shaft body (1) is provided on the outside of the motor output shaft body (1). A lubrication mechanism (3) for injecting grease into the sound insulation mechanism (2) is provided on the outer wall of the sound insulation mechanism (2).

2. A low noise motor output shaft as claimed in claim 1, wherein: The sound insulation mechanism (2) includes a sound insulation cover (201) fixedly mounted on the surface of the motor output shaft body (1). The sound insulation cover (201) is located outside the coupling (101) and the two sets of bearings (102). Two sets of sealing grooves (202) are provided at the openings at both ends of the sound insulation cover (201). Two sets of sealing covers (203) are fixedly connected to the end of the sound insulation cover (201) near the two sets of sealing grooves (202) through flanges. Sealing strips (204) are fixedly connected to the side of the two sets of sealing covers (203) near the two sets of sealing grooves (202). The two sets of sealing strips (204) are engaged inside the two sets of sealing grooves (202).

3. A low noise motor output shaft as claimed in claim 2, wherein: The top of the soundproof cover (201) is connected to a connecting pipe (205) through an inlet, and a valve plate (206) is installed at the bottom of the inlet of the soundproof cover (201) through a hinge.

4. A low-noise motor output shaft according to claim 3, characterized in that: The connecting pipe (205) has a spring telescopic rod (207) installed inside by a hinge. The bottom end of the spring telescopic rod (207) is fixedly connected to the top end of the valve plate (206) by a hinge.

5. A low-noise motor output shaft according to claim 4, characterized in that: The inner wall of the soundproof cover (201) is fitted with soundproof cotton (208) through an opening in the mounting groove. The soundproof cotton (208) is made of polyester fiber.

6. A low-noise motor output shaft according to claim 1, characterized in that: The lubrication mechanism (3) includes a storage tank (301) threadedly connected to a connecting pipe (205). A piston (302) is slidably installed inside the storage tank (301). A push rod (303) is fixedly connected to one side of the piston (302), and one end of the push rod (303) extends out of the interior of the storage tank (301).

7. A low-noise motor output shaft according to claim 6, characterized in that: The lubrication mechanism (3) also includes a cylinder (304) mounted on the outer wall of the soundproof cover (201) by a mounting bracket. The telescopic end of the cylinder (304) is fixedly connected to one end of the push rod (303) through a connecting rod, and the cylinder (304) is located on one side of the storage tank (301).

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