CN212210618U

CN212210618U - Miniature hydroelectric generator set

Info

Publication number: CN212210618U
Application number: CN202020985784.9U
Authority: CN
Inventors: 兰新禄; 马清水; 胡金保; 祝传宝
Original assignee: Xiamen Lota International Co Ltd
Current assignee: Xiamen Lota International Co Ltd
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2020-12-22
Anticipated expiration: 2030-06-02

Abstract

The utility model provides a miniature hydroelectric set, including stator, rotor and pivot, the stator includes stator coil group and fixing base, the rotor includes impeller, permanent magnet and bearing, through the pivot will stator and rotor assembly get up, the bearing cup joint in the pivot, the pivot is fixed on the fixing base, impeller, permanent magnet and the integrative setting of bearing still include wear-resisting gasket, wear-resisting gasket locates the upper and lower both ends face of rotor. The utility model discloses the wear-resisting gasket that increases has spacing and wear-resisting effect, can reduce the friction when the bearing rotates to guaranteed the high-speed pivoted stability of rotor, also increased life simultaneously.

Description

Miniature hydroelectric generator set

Technical Field

The utility model relates to a power generation facility technical field particularly, relates to a miniature hydroelectric generator set.

Background

At present, a miniature hydroelectric generating set generally comprises a rotor and a stator coil, wherein the rotor comprises a rotating shaft, a permanent magnet and an impeller, a bearing, a sealing ring, a water guide plate, a support, a wear-resistant gasket and the like.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a miniature hydroelectric generator set, simple structure, the operation is convenient, stability and life's problem when aiming at improving the high-speed rotation of rotor.

The utility model adopts the following scheme:

the utility model provides a miniature hydroelectric set, includes stator, rotor and pivot, the stator includes stator coil group and fixing base, the rotor includes impeller, permanent magnet and bearing, through the pivot will stator and rotor assembly, the bearing cup joint in the pivot, the pivot is fixed on the fixing base, impeller, permanent magnet and the integrative setting of bearing still include wear-resisting gasket, wear-resisting gasket locates the upper and lower both ends face of rotor.

As a further improvement, the rotor fixing device further comprises a water guide plate, wherein the water guide plate is provided with a containing cavity for containing the rotor, a limiting hole matched with the rotating shaft is formed in the containing cavity in a concave mode, and the rotating shaft is fixed on the fixing seat through the matching of the water guide plate and the fixing seat.

As a further improvement, the fixed seat is provided with a fixed hole for mounting the rotating shaft, and the stator coil is assembled on the other surface opposite to the fixed hole.

As a further improvement, the fixed seat is made of non-magnetic materials.

As a further improvement, the impeller is arranged at the outermost end, the permanent magnet is arranged in the middle, the bearing is arranged on the inner ring, and two ends of the bearing along the axial direction extend out of two end faces of the impeller.

As a further improvement, the wear-resistant gaskets are sleeved on the rotating shaft and are abutted against two end faces of the bearing.

As a further improvement, the rotating shaft is made of stainless steel.

By adopting the technical scheme, the utility model discloses can gain following technological effect:

1. the utility model discloses the wear-resisting gasket of two terminal surface increases about the rotor has spacing and wear-resisting effect, can reduce the friction when the bearing rotates to guaranteed the high-speed pivoted stability of rotor, also increased life simultaneously.

2. The utility model discloses a with impeller, permanent magnet and the integrative setting of bearing, it is more convenient to change as a part and maintain.

3. The utility model discloses the bearing extends the both ends face of impeller along the axis both ends, and with the aqueous medium contact that flows, the heat dissipation of being convenient for reduces the friction and generates heat, improves bearing life.

4. The utility model discloses a pivot is fixed on the fixing base, pushes down the pivot through the water deflector, ensures the location of pivot. The rotating shaft is made of stainless steel, so that the mechanical strength is ensured, and the rotating shaft also has a corrosion resistance effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic exploded view of the present invention;

fig. 2 is a schematic view of the centering sectional structure of the present invention;

icon: 1-a stator; 2-a rotor; 3-a rotating shaft; 4-wear resistant gaskets; 5-a water guide plate; 11-stator coil group; 12-a fixed seat; 21-an impeller; 22-permanent magnet; 23-a bearing; 51-a containment chamber; 52-a limiting hole; 111-outlet line; 121-fixing hole.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

With reference to fig. 1 and 2, the present embodiment provides a stator assembly including a stator 1, a rotor 2, a rotating shaft 3, and a water guide plate 5, where the stator 1 includes a stator coil group 11 and a fixing base 12, the rotor 2 includes an impeller 21, a permanent magnet 22, and a bearing 23, the stator coil group 11 is fixed on the fixing base 12, and the stator 1 and the rotor 2 are assembled together through the rotating shaft 3, so that the rotor 2 rotates around the rotating shaft 3 on the stator 1.

Bearing 23 among the rotor 2 cup joints on pivot 3, when rotor 2 rotates at a high speed, because the area of contact of pivot 3 is big and long, if pivot 3 rotates along with rotor 2, it is great to lead to whole rotor 2 radial swing easily, is unfavorable for rotor 2 pivoted stability, also can increase the wearing and tearing aggravation between bearing 23 and the pivot 3 when pivot 3 radial swing is great simultaneously, and then can reduce 3 rotational speeds of pivot, reduces the generating power. In order to improve the stability of the rotor 2, reduce the radial swing probability, prolong the service life of the motor and reduce the rotational friction resistance of the contact surface of the bearing 23 in the rotor 2. The impeller 21, the permanent magnet 22 and the bearing 23 are integrally arranged, so that the strength of the rotor 2 is increased, and the replacement and maintenance as one component are more convenient. In addition, the rotating shaft 3 is fixed, so that the problem that the rotating arm is the whole rotating shaft 3, and the radial swing is too large due to too long length of the whole rotating shaft 3 can be avoided. In order to increase the mechanical strength of the rotating shaft 3 and to prevent the motor from rusting by water medium and other factors to increase the friction force with the bearing 23, the rotating shaft 3 is made of stainless steel corrosion-resistant material. Preferably, the shaft 3 is made of stainless steel 304.

Specifically, be equipped with the fixed orifices 121 that is used for installing pivot 3 on fixing base 12, place pivot 3 on fixed orifices 121, connect pivot 3 on fixing base 12 through riveting or bolted connection, thereby the upper end is fixed pivot 3 on fixing base 12 through the cooperation of water deflector 5 with fixing base 12. Further, the rotating shaft 3 may be subjected to secondary injection molding to ensure accuracy.

Referring to fig. 2, the water deflector 5 is provided with a containing cavity 51 for containing the rotor 2, a limiting hole 52 matched with the rotating shaft 3 is formed in the middle of one end of the containing cavity 51 opposite to the opening, when the water deflector 5 is matched with the fixing seat 12, one end of the rotating shaft 3 is arranged in the fixing hole 121, and the other end of the rotating shaft is arranged in the limiting hole 52, so as to ensure the vertical precision of the rotating shaft 3.

The stator coil assembly 11 and the permanent magnet 22 are separated by the fixing base 12, the permanent magnet 22 is disposed on the rotating shaft 3 on one surface having the fixing hole 121, and the stator coil assembly 11 is mounted on the other surface opposite to the fixing hole 121. The stator coil group 11 is provided with lead wires 111 for supplying power, and the rotor 2 is rotated by driving the permanent magnets 22 to rotate through the stator coil group 11. The holder 12 is made of a non-magnetic conductive material to prevent interference with the holder.

In the present embodiment, the impeller 21 is provided at the outermost end, the permanent magnet 22 is provided in the middle, and the bearing 23 is provided at the inner ring. The friction of the bearing 23 during rotation can make the bearing 23 generate heat, which is easy to reduce the service life of the bearing 23, so that the two ends of the bearing 23 along the axial direction extend out of the two end surfaces of the impeller 21, the two end surfaces of the bearing 23 can be contacted with flowing water medium, which is beneficial to heat dissipation, reduces friction heat generation, prolongs the service life of the bearing 23, and also prolongs the service life of the motor. In the present embodiment, the bearing 23 is a wear-resistant bearing 23.

Furthermore, in order to better reduce the friction between the upper and lower end surfaces of the rotor 2 and the fixed seat 12 and the water guide plate 5 in the rotation process, wear-resistant gaskets 4 are arranged on the two end surfaces of the rotor 2. Preferably, two wear-resistant gaskets 4 are arranged, the two wear-resistant gaskets are sleeved on the rotating shaft 3 and are respectively arranged at the upper end and the lower end of the rotor 2 along the axis direction, and two end faces of the bearing 23 are respectively abutted against the two wear-resistant gaskets 4. In this embodiment, the wear-resistant pad 4 can be embedded in the rotating shaft 3 to limit the position of the rotor 2, increase the degree of freedom of the rotor 2, and improve the stability of the high-speed rotation of the rotor 2. The original friction area of the rotor 2 is reduced through the wear-resistant gasket 4, the friction coefficient of the wear-resistant gasket 4 is low, and the use requirement of the motor can be well met. In other embodiments, the number of wear resistant pads 4 may be three or more, but at least one must be provided at both ends of the rotor 2.

The utility model discloses a fixing base 12 and water deflector 5's cooperation makes pivot 3 fixed motionless, ensures pivot 3's precision, reduces rotor 2 pivoted arm length, reduces rotor 2's swing probability and frictional resistance, sets up wear-resisting gasket 4 through 2 both ends faces of rotor, has spacing rotor 2's degree of freedom, and reduces rotor 2's friction area to guarantee the high-speed pivoted stability of rotor 2, improved the life of motor.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection.

Claims

1. The utility model provides a miniature hydroelectric set, includes stator, rotor and pivot, the stator includes stator coil group and fixing base, the rotor includes impeller, permanent magnet and bearing, through the pivot will stator and rotor assembly, the bearing cup joint in the pivot, its characterized in that, the pivot is fixed on the fixing base, impeller, permanent magnet and the integrative setting of bearing still include wear-resisting gasket, wear-resisting gasket locates both ends face about the rotor.

2. The micro hydroelectric generator set according to claim 1, further comprising a water guide plate, wherein the water guide plate is provided with a receiving cavity for receiving the rotor, a limiting hole matched with the rotating shaft is formed in the receiving cavity by sinking, and the rotating shaft is fixed on the fixing seat by matching the water guide plate with the fixing seat.

3. The hydroelectric generating set of claim 1, wherein the fixing base is provided with a fixing hole for mounting the rotating shaft, and the stator coil is assembled on the other surface opposite to the fixing hole.

4. A micro hydro-generator set according to claim 3, wherein the holder is made of a non-magnetic material.

5. A micro hydro-power generating set according to claim 1, wherein the impeller is disposed at an outermost end, the permanent magnet is disposed at a middle, the bearing is disposed at the inner ring, and both ends of the bearing in the axial direction extend out of both end surfaces of the impeller.

6. A micro hydro-power generating set according to claim 5, wherein the wear resistant spacers are sleeved on the rotating shaft and abut against two end faces of the bearing.

7. A micro hydro-generator set according to claim 1, wherein the shaft is made of stainless steel.