Novel self-vibration source

Abstract

The utility model discloses a novel self-vibration source which comprises two self-vibration units arranged in parallel, each self-vibration unit comprises a machine shell, vibration excitation units are arranged at the two ends of the interior of each machine shell, and each machine shell is of a tubular structure; the vibration excitation unit comprises a stator shell fixedly connected to the end of the machine shell, a stator is fixedly arranged in the stator shell, a rotor shaft is rotationally arranged in the stator, the rotor shaft is rotationally connected with the stator shell through a bearing, the inner side end of the rotor shaft penetrates through the stator shell, and a plurality of eccentric blocks are fixedly embedded in the position, located on the inner side of the stator, of the rotor shaft. The self-vibration motor has the advantages that the stator part can be independently disassembled, the self-vibration motor is convenient to install and overhaul, the structure is simple, large-scale development of a self-vibration source is facilitated, linear and elliptical vibration modes can be realized, and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration motors, in particular to a novel self-vibration source. Background Art

[0002] A vibration motor is an exciting source that combines a power source and a vibration source into one. A vibration motor has a set of adjustable eccentric blocks installed at each end of the rotor shaft, and uses the centrifugal force generated by the high-speed rotation of the shaft and the eccentric blocks to obtain exciting force. Patent publication number CN2904444Y discloses an exciting motor, which specifically discloses that the stator in the middle part of the shell drives the rotor shaft to rotate, and the eccentric blocks at both ends of the rotor shaft rotate to generate exciting force. However, since the stator winding part is in the middle part of the shell and the eccentric blocks are located on both sides of the rotor shaft, there are problems such as the stator part cannot be removed separately, installation and maintenance are inconvenient, the structure is complicated, and it is not conducive to the large-scale development of self-vibration sources. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a new type of self-vibration source. The rotor shafts in the self-vibration source are synchronously driven to realize linear and elliptical vibration modes, and the stators are all located on the outside of the eccentric blocks; the stator part can be removed separately, and the installation and maintenance are convenient, the structure is simple, which is conducive to the large-scale development of the self-vibration source and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of self-vibration source, including a self-vibration unit, the self-vibration unit includes a casing, and both ends of the casing are provided with excitation units, the casing is a tubular structure; the excitation unit includes a stator casing fixedly connected to the end of the casing, a stator is fixedly provided in the stator casing, a rotor shaft is rotatably provided in the stator, the rotor shaft is rotatably connected to the stator casing through a bearing, the inner end of the rotor shaft passes through the stator casing, and a plurality of eccentric blocks are fixedly nested on the inner side of the stator on the rotor shaft; the rotor shafts at both ends of the casing are transmission-connected to each other through a coupling unit.

[0005] Furthermore, both ends of the casing are provided with an outward-turned flange end plate, and the outer wall of the middle part of the stator shell is provided with a flange plate, and the flange plate of the stator shell is fixedly connected to the flange end plate at the end of the casing by bolts; the outer wall of the stator shell located on the inner side of the flange plate is gap-matched with the inner wall of the casing.

[0006] Furthermore, bearing chambers are provided at both ends of the stator housing, the bearings are arranged in the bearing chambers, the rotor shafts pass through the corresponding bearing chambers, flange rings are provided on the outer walls of the bearing chambers, and outward-turned flange end plates 2 are provided at both ends of the stator housing. The flange rings of the bearing chambers are fixedly connected to the flange end plates 2 at the ends of the stator housing by bolts; the outer diameters of the flange rings and the flange end plates 2 are adapted to the inner diameter of the casing.

[0007] Furthermore, the coupling unit includes a transmission shaft, which is located between the rotor shafts at both ends inside the casing, and the inner end of the rotor shaft and the end of the transmission shaft are connected through a transmission yoke.

[0008] Furthermore, the number of the self-vibration units is two and they are parallel to each other, and a protective cover is fixedly connected between the ends of the casings of the two self-vibration units by bolts; the outer ends of the rotor shafts both penetrate into the protective cover, and the outer ends of the rotor shafts are fixedly connected to gears, and the two gears on the same side are meshed with each other.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows: in the novel self-vibration source, each rotor shaft in the self-vibration source is synchronously driven, and both linear and elliptical vibration modes can be realized. The stators are all located on the outside of the eccentric block, and the stator part can be removed separately. The installation and maintenance are convenient, the structure is simple, and it is conducive to the large-scale development of the self-vibration source. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 This is a schematic diagram of the structure of the excitation unit of the utility model;

[0012] Figure 3 This is a schematic diagram of the connection structure between the stator housing and the bearing chamber of the utility model;

[0013] Figure 4 This is a schematic diagram of the internal structure of the protective cover of the utility model;

[0014] Figure 5 It is a top view of the utility model.

[0015] In the figure: 1. Casing; 11. Flange end plate 1; 2. Excitation unit; 21. Stator housing; 211. Flange; 212. Flange end plate 2; 22. Stator; 23. Rotor shaft; 24. Eccentric block; 25. Bearing chamber; 26. Bearing; 27. Gear; 3. Protective cover; 4. Transmission shaft; 5. Transmission yoke. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0017] See also Figure 1-5The utility model provides a technical solution: a new self-vibration source, including two mutually parallel self-vibration units, the self-vibration unit includes a casing 1, both ends of the casing 1 are provided with excitation units 2, and the casing 1 is a tubular structure;

[0018] The excitation unit 2 includes a stator housing 21 fixedly connected to the end of the casing 1, and both ends of the casing 1 are provided with an outward-turned flange end plate 11, and a flange 211 is provided on the outer wall of the middle part of the stator housing 21, and the flange 211 of the stator housing 21 is fixedly connected to the flange end plate 11 at the end of the casing 1 by bolts; the outer wall of the stator housing 21 located on the inner side of the flange 211 is gap-matched with the inner wall of the casing 1;

[0019] A stator 22 is fixedly arranged in the stator housing 21, and a rotor shaft 23 is rotatably arranged in the stator 22; bearing chambers 25 are arranged at both ends of the stator housing 21, and bearings 26 are arranged in the bearing chambers 25. The rotor shafts 23 pass through the corresponding bearing chambers 25, and flange rings are arranged on the outer walls of the bearing chambers 25. Outward-turned flange end plates 212 are arranged at both ends of the stator housing 21, and the flange rings of the bearing chambers 25 are fixedly connected to the flange end plates 212 at the ends of the stator housing 21 by bolts; the rotor shaft 23 is rotatably connected to the stator housing 21 through the bearings 26, and the outer diameters of the flange rings and the flange end plates 212 are adapted to the inner diameter of the casing 1;

[0020] A plurality of eccentric blocks 24 are fixedly nested on the rotor shaft 23 on the inner side of the stator 22; the rotor shafts 23 at both ends inside the casing 1 are connected to each other through a coupling unit; the coupling unit includes a transmission shaft 4, which is located between the rotor shafts 23 at both ends inside the casing 1, and the inner end of the rotor shaft 23 and the end of the transmission shaft 4 are connected to each other through a transmission yoke 5.

[0021] Furthermore, the number of the self-vibration units is two and they are parallel to each other, and a protective cover 3 is fixedly connected between the ends of the casing 1 of the two self-vibration units by bolts; the outer ends of the rotor shaft 23 are all penetrated into the protective cover 3, and the outer ends of the rotor shaft 23 are fixedly connected with a gear 27, and the two gears 27 on the same side are meshed with each other.

[0022] Working principle:

[0023] When the stator 22 is energized, the rotor shaft 23 rotates, and the rotor shaft 23 drives the eccentric mass 24 to rotate, thereby generating excitation. The two rotor shafts 23 in the same self-vibration unit are synchronously driven through the transmission shaft 4 and the transmission yoke 5, and because the two gears 27 on the same side are meshed with each other, the rotor shafts 23 of the two self-vibration units are forced to rotate synchronously, and two vibration modes, linear and elliptical, can be achieved; the two rotor shafts 23 in the same self-vibration unit are synchronously driven through the transmission shaft 4 and the transmission yoke 5, which is conducive to the large-scale development of the self-vibration source; the stators 22 are all located on the outside of the eccentric mass 24, and the stator 22 part can be removed separately, which is convenient for installation and maintenance.

[0024] The novel self-vibration source disclosed in this embodiment has synchronous transmission of each rotor shaft 23 in the self-vibration source, which can realize linear and elliptical vibration modes. The stators 22 are all located on the outside of the eccentric block 24. Part of the stator 22 can be removed separately, which is convenient for installation and maintenance, and has a simple structure, which is conducive to the large-scale development of the self-vibration source.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel self-vibration source, comprising a self-vibration unit, the self-vibration unit comprising a casing, and excitation units are arranged at both ends of the casing, characterized in that: The casing is a tubular structure; the excitation unit includes a stator casing fixedly connected to the end of the casing, a stator is fixedly arranged in the stator casing, a rotor shaft is rotatably arranged in the stator, the rotor shaft is rotatably connected to the stator casing through a bearing, the inner end of the rotor shaft passes through the stator casing, and a plurality of eccentric blocks are fixedly nested on the inner side of the stator on the rotor shaft; the rotor shafts at both ends inside the casing are transmission-connected to each other through a coupling unit.

2. A novel self-vibration source according to claim 1, characterized in that: Both ends of the casing are provided with an outward-turned flange end plate, and the outer wall of the middle part of the stator shell is provided with a flange plate. The flange plate of the stator shell is fixedly connected to the flange end plate at the end of the casing by bolts; the outer wall of the stator shell located on the inner side of the flange plate is gap-matched with the inner wall of the casing.

3. A novel self-vibration source according to claim 1, characterized in that: Both ends of the stator housing are provided with bearing chambers, the bearings are arranged in the bearing chambers, the rotor shafts pass through the corresponding bearing chambers, the outer walls of the bearing chambers are provided with flange rings, and both ends of the stator housing are provided with outward-turned flange end plates 2, the flange rings of the bearing chambers are fixedly connected to the flange end plates 2 at the ends of the stator housing by bolts; the outer diameters of the flange rings and the flange end plates 2 are adapted to the inner diameter of the casing.

4. A novel self-vibration source according to claim 1, characterized in that: The coupling unit comprises a transmission shaft, which is located between the rotor shafts at both ends inside the casing, and the inner end of the rotor shaft is connected to the end of the transmission shaft through a transmission yoke.

5. A novel self-vibration source according to claim 1, characterized in that: There are two self-vibration units in parallel with each other, and a protective cover is fixedly connected between the ends of the casings of the two self-vibration units by bolts; the outer ends of the rotor shafts are both inserted into the protective cover, and the outer ends of the rotor shafts are fixedly connected with gears, and the two gears on the same side are meshed with each other.

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