High-protection vibration motor

Abstract

The utility model relates to the technical field of vibration motors, in particular to a high-protection vibration motor, which comprises an end cover and a cover body, a flange end with an annular structure is arranged on the cover body, the flange end is embedded in a butt joint concave cavity arranged on the end cover so as to cover an eccentric block to seal the eccentric block, and a vacuum groove is arranged on the flange end. One end of a channel formed in the end cover communicates with the inner space of the vacuum groove, the other end of the channel is provided with a one-way air exhaust unit used for conducting one-way air exhaust on the interior of the vacuum groove, and an elastic sealing part used for sealing is arranged at the joint of the flange end and the butt joint concave cavity. The sealing part comprises a radial seal and an axial seal which are used for sealing the joint of the flange end and the butt joint concave cavity in the radial direction and the axial direction, and an open hole used for being matched with the channel is formed in the axial seal. According to the utility model, the cover body and the end cover are assembled in an adsorption manner by utilizing a vacuum negative pressure adsorption principle, the flange end and the end cover are assembled in an embedded manner, and the sealing part on the flange end plays roles in sealing, dust prevention and vibration reduction.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration motors, in particular to a high-protection vibration motor. Background Art

[0002] The vibration motor is mainly composed of a casing, a rotating shaft, an adjustable eccentric block, a motor stator, a rotor, an end cover and other components. Its working principle is to install a set of adjustable eccentric blocks at both ends of the rotating shaft, and use the centrifugal force generated by the shaft and the adjustable eccentric blocks under high-speed rotation to obtain the exciting force. There are many types of vibration motors, which are widely used in various industries. However, when the end cover of the current vibration motor is fixed to the cover, its sealing performance is poor. When used in dusty environments, it is easy to cause dust and fine materials to penetrate into the motor, thereby affecting the service life and performance of the motor. At the same time, the end cover and the casing of the vibration motor are generally fixed with bolts. When it is necessary to adjust the adjustable eccentric block inside, the operation is inconvenient. The vibration of the motor will loosen the bolts, thereby affecting the sealing performance of the cover to the motor. Utility Model Content

[0003] The utility model aims to solve the above defects and provide a high-protection vibration motor.

[0004] In order to overcome the defects existing in the background technology, the technical solution adopted by the utility model to solve its technical problems is: a highly protective vibration motor, comprising a casing, a driving unit located in the casing, end covers arranged at both ends of the casing and a cover body, wherein the driving unit is connected to the eccentric block through the end covers, and is characterized in that a flange end of an annular structure is arranged on the cover body, the flange end is embedded in a docking cavity opened on the end cover so as to cover the eccentric block to seal it, a vacuum groove is opened on the flange end, and a channel is opened in the end cover, one end of the channel is connected to the internal space of the vacuum groove, and the other end is provided with a one-way exhaust unit for one-way exhaust in the vacuum groove;

[0005] A sealing portion with elasticity for sealing is provided at the connection between the flange end and the docking cavity, and the sealing portion includes a radial seal for radially sealing the connection between the flange end and the docking cavity and an axial seal for axially sealing the connection between the flange end and the docking cavity, and an opening is provided on the axial seal for matching and communicating with the channel.

[0006] A further improvement includes that the one-way air extraction unit adopts a one-way air extraction valve.

[0007] A further improvement includes that the material of the sealing portion is preferably rubber, polyurethane or polytetrafluoroethylene.

[0008] Further improvements include a sealing ring for sealing at the connection between the housing and the end cover.

[0009] The beneficial effects of the present utility model are as follows: This design utilizes the principle of vacuum negative pressure adsorption to adsorb and assemble the cover body and the end cover. The flange end and the end cover are assembled in an embedded manner, thereby playing a role in radial positioning, ensuring the stability of the assembly, and the sealing part on the flange end plays a role in sealing, dust prevention, and vibration reduction. Description of the Drawings

[0010] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0011] Figure 1 is the front view of the present utility model;

[0012] Figure 2 is Figure 1 the enlarged view of A in

[0013] In the figure, 1 - cover body, 2 - end cover, 3 - vacuum groove, 4 - flange end, 5 - sealing part, 6 - one-way air extraction unit, 7 - channel, 8 - opening, 9 - docking cavity, 10 - driving unit, 11 - eccentric block, 12 - housing, 501 - radial sealing section, 502 - axial sealing section. Detailed Embodiment

[0014] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments in the present utility model belong to the scope of protection of the present utility model.

[0015] According to Figure 1 and Figure 2As shown in the figure, a highly protective vibration motor includes a housing 12, a driving unit 10 located inside the housing 12, end caps 2 provided at both ends of the housing 12, and a cover 1. The driving unit 10 is connected to an eccentric block 11 through the end caps 2 to drive the eccentric block 11 to rotate, thereby causing the motor to vibrate. A flange end 4 with an annular structure is provided on the cover 1. The flange end 4 is embedded into a docking cavity 9 opened on the end cap 2 to cover the eccentric block 11 inside for sealing. A vacuum groove 3 is opened on the flange end 4, and a channel 7 is opened inside the end cap 2. One end of the channel 7 is communicated with the internal space of the vacuum groove 3, and the other end is provided with a one-way air extraction unit 6 for one-way air extraction of the vacuum groove 3, so as to maintain the inside of the vacuum groove 3 in a vacuum state. Under the action of negative pressure, the flange end 4 can be adsorbed into the docking cavity 9 of the end cap 2;

[0016] A sealing part 5 which is used for sealing and has elasticity is provided at the connection between the flange end 4 and the docking cavity 9. The sealing part 5 includes a radial sealing branch 501 for radially sealing the connection between the flange end 4 and the docking cavity 9 and an axial sealing branch 502 for axially sealing the connection between the flange end 4 and the docking cavity 9. An opening 8 for matching and conducting with the channel 7 is opened on the axial sealing branch 502. Since the eccentric block 11 generates radial centrifugal force during rotation, the radial sealing branch 501 not only plays a sealing role but also plays a radial shock absorption role.

[0017] The one-way air extraction unit 6 adopts a one-way air extraction valve, and the one-way air extraction valve is used to prevent air from flowing back into the vacuum groove 3 to ensure the adsorption effect between the flange end 4 and the docking cavity 9 of the end cap 2.

[0018] A sealing ring for sealing is provided at the connection between the housing 12 and the end cap 2.

[0019] The material of the sealing part 5 is preferably rubber, polyurethane or polytetrafluoroethylene. Rubber has good elasticity and flexibility, can adapt to different shapes and surfaces, and provides good sealing and shock absorption effects. Polyurethane has high strength, high wear resistance and good elasticity. Polytetrafluoroethylene has excellent corrosion resistance and low friction coefficient, and is suitable for sealing and shock absorption under harsh conditions such as high temperature and strong corrosion.

[0020] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A high-protection vibration motor, comprising a housing (12), a drive unit (10) located in the housing (12), end covers (2) arranged at both ends of the housing (12), and a cover (1), wherein the drive unit (10) is connected to an eccentric block (11) via the end covers (2), and wherein: The housing (1) is provided with a flange end (4) of an annular structure, the flange end (4) being embedded in a docking cavity (9) provided on the end cover (2) so as to cover the eccentric block (11) therein, the flange end (4) being provided with a vacuum groove (3), and the end cover (2) being provided with a channel (7), one end of the channel (7) being connected to the internal space of the vacuum groove (3), and the other end being provided with a one-way exhaust unit (6) for one-way exhaust of the vacuum groove (3); A sealing portion (5) having elasticity for sealing is provided at the connection between the flange end (4) and the docking cavity (9), the sealing portion (5) comprising a radial sealing portion (501) for radially sealing the connection between the flange end (4) and the docking cavity (9) and an axial sealing portion (502) for axially sealing the connection between the flange end (4) and the docking cavity (9), and an opening (8) for matching and conducting with the channel (7) is provided on the axial sealing portion (502).

2. A high protection vibration motor as claimed in claim 1, characterized in that: The one-way air extraction unit (6) adopts a one-way air extraction valve.

3. A high protection vibration motor as claimed in claim 1, characterized in that: The sealing portion (5) is made of rubber, polyurethane or polytetrafluoroethylene.

4. A high protection vibration motor as claimed in claim 1, characterized in that: A sealing ring for sealing is provided at the connection between the casing (12) and the end cover (2).

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