CN219643689U

CN219643689U - Noise reduction type rotor structure of generator

Info

Publication number: CN219643689U
Application number: CN202320574869.1U
Authority: CN
Inventors: 黄长育; 刘正高
Original assignee: Jiangsu Hengjiu Motor Technology Co ltd
Current assignee: Jiangsu Hengjiu Motor Technology Co ltd
Priority date: 2023-03-22
Filing date: 2023-03-22
Publication date: 2023-09-05
Anticipated expiration: 2033-03-22

Abstract

The utility model discloses a noise reduction rotor structure of a generator, which belongs to the technical field of noise reduction of the generator, and particularly relates to a noise reduction rotor structure of the generator, which comprises a rotor shaft, a rotor sheet group, first sound absorption cotton and second sound absorption cotton, wherein a rotor support is arranged on the outer surface of the rotor shaft, a rotor sheet group is arranged above the outer side wall of the rotor support, fixing clamping pieces are arranged at two ends of the rotor sheet group, a front sound shielding cover is arranged at the left end of the rotor support, a fixing cover is arranged at the right side of the front sound shielding cover, air turbulence generated by the air passing through the surface during integral rotation is greatly reduced, heat is discharged from an air outlet at the rear of the fixing cover through an annular air duct, the heat dissipation effect is enhanced, an air duct is arranged between fan-shaped sheets so as to facilitate the heat and air intake to pass through during operation, and the first sound absorption cotton and the second sound absorption cotton can absorb and reduce noise generated during rotation of the rotor, so that the noise is further reduced, and the excessive noise is avoided to influence on the health of operators.

Description

Noise reduction type rotor structure of generator

Technical Field

The utility model relates to the technical field of noise reduction of generators, in particular to a noise reduction type rotor structure of a generator.

Background

Generators (Generators) are mechanical devices for converting mechanical energy into electrical energy, which are driven by water turbines, steam turbines, diesel engines or other power machines, and convert energy generated by water flow, air flow, fuel combustion or nuclear fission into mechanical energy which is transmitted to Generators, and then the Generators are converted into electrical energy, wherein the Generators are usually composed of a stator, a rotor, end covers, bearings and other components, and one of the main components for realizing the conversion of the mechanical energy in a motor with a rotor winding wound on the rotor. The coil forming the armature winding has a single turn or a plurality of turns, and each turn can be wound by a plurality of parallel wires. The part of coil embedding inslot is called effective part, and the part of stretching out outside the groove is called the link, can use the fan to carry out inside cooling and make the circulation of air when carrying out the electricity generation rotation, and the armature winding surface that leaks outward around the air produces the vortex and then arouses the cooling air turbulence, and though be favorable to the heat dissipation, nevertheless can lead to the during operation noise too big, and the noise can lead to hearing to descend, arouse dizziness, tinnitus, reduce attention, make seriously influence operating personnel's health, consequently need develop a generator noise reduction formula rotor structure.

Disclosure of Invention

This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the utility model and in the title of the utility model, which may not be used to limit the scope of the utility model.

In order to solve the technical problems, according to one aspect of the present utility model, the following technical solutions are provided:

a noise reducing rotor structure of a generator, comprising: the rotor shaft, the rotor shaft surface is provided with the rotor support, rotor support lateral wall top is provided with rotor sheet group, rotor sheet group both ends all are provided with the fixed fastener, rotor support left end is provided with anterior sound cover, anterior sound cover right side is provided with fixed cover.

As a preferable mode of the noise reduction type rotor structure of the generator, the utility model comprises the following steps: the rotor sheet group comprises fan-shaped sheets distributed in an annular mode, a plurality of fixing holes are formed in the outer side walls of the fan-shaped sheets, a plurality of sliding grooves are formed in the radial ends of the outer side walls of the fan-shaped sheets, a plurality of connecting plates are arranged on one side walls, far away from the sliding grooves, of the fan-shaped sheets, arc-shaped limiting sheets are arranged on one sides, far away from the fan-shaped sheets, of the connecting plates, an air duct is arranged between the fan-shaped sheets, and winding cavities are formed in two sides of each connecting plate.

As a preferable mode of the noise reduction type rotor structure of the generator, the utility model comprises the following steps: the outer side wall of the rotor support is annularly provided with a slide bar, and the slide bar is in sliding connection with the chute.

As a preferable mode of the noise reduction type rotor structure of the generator, the utility model comprises the following steps: through holes are formed in annular distribution of the outer side walls of the fixing clamping pieces, fixing rods are arranged in the through holes, the fixing rods are in sliding connection with the fixing holes, and clamping rings are arranged at two ends of the fixing rods.

As a preferable mode of the noise reduction type rotor structure of the generator, the utility model comprises the following steps: the front sound shielding cover inner wall is provided with an annular air duct, the left side wall of the front sound shielding cover is provided with an air inlet hole, and the inner cavity of the front sound shielding cover is provided with first sound absorbing cotton.

As a preferable mode of the noise reduction type rotor structure of the generator, the utility model comprises the following steps: the fixed cover outer side wall is close to one side of front portion and hides the sound cover and set up the screw thread, fixed cover right side wall is provided with the air outlet, fixed cover inner chamber is provided with the second and inhales the sound cotton, fixed cover and front portion hide the both sides that the sound cover kept away from all to be provided with the solid fixed ring.

Compared with the prior art, the utility model has the beneficial effects that: the air turbulence that a large amount of reduction gas produced through the surface when wholly rotating, the heat is discharged from the apopore at fixed cover rear through annular wind channel, strengthen the radiating effect, be provided with the wind channel between the fan-shaped piece and be convenient for at during operation heat and air inlet and pass through, first inhale the sound cotton and inhale the sound cotton with the second and can absorb the noise that produces when rotating the rotor and reduce gas, and then further reduce the production of noise, avoid the noise too big healthy influence to operating personnel.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following detailed description of the embodiments of the present utility model will be given with reference to the accompanying drawings, which are to be understood as merely some embodiments of the present utility model, and from which other drawings can be obtained by those skilled in the art without inventive faculty. Wherein:

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an overall exploded view of the present utility model;

FIG. 3 is a schematic view of the rotor shaft and rotor support assembly of the present utility model;

FIG. 4 is a schematic view of a rotor sheet assembly disassembly assembly according to the present utility model.

In the figure: rotor shaft 100, rotor sheet group 110, fan-shaped sheet 111, connecting plate 112, arc limiting sheet 113, fixing hole 114, chute 115, winding cavity 116, air duct 117, snap ring 118, rotor bracket 120, fixing clip 121, through hole 122, fixing rod 123, slide bar 124, front sound shielding cover 130, annular air duct 131, fixing cover 132, screw thread 133, air outlet 134, air inlet 135, first sound absorbing cotton 136, second sound absorbing cotton 137, and fixing ring 138.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.

Next, the present utility model will be described in detail with reference to the drawings, wherein the sectional view of the device structure is not partially enlarged to general scale for the convenience of description, and the drawings are only examples, which should not limit the scope of the present utility model. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.

Fig. 1 to 4 are schematic structural views of an embodiment of a noise reduction rotor structure of a generator according to the present utility model, referring to fig. 1 to 4, the noise reduction rotor structure of a generator according to the present utility model includes: rotor shaft 100, rotor sheet set 110, first sound absorbing cotton 136, and second sound absorbing cotton 137.

The rotor shaft 100 and the rotor support 120 are main installation components of a noise reduction rotor structure of a generator, specifically, in this embodiment, the rotor support 120 is disposed on the outer surface of the rotor shaft 100, and the sliding strips 124 are disposed on the outer side wall of the rotor support 120 in a ring shape for installing the rotor sheet group 110.

In this embodiment, in order to better install the rotor winding and dissipate heat, a rotor sheet group 110 is disposed on an outer side wall of the rotor support 120, the rotor sheet group 110 includes a plurality of annularly distributed fan-shaped sheets 111, fixing holes 114 are formed on the outer side walls of the fan-shaped sheets 111 to fix the fan-shaped sheets 111, a chute 115 is disposed on a centripetal end of the outer side walls of the fan-shaped sheets 111, the chute 115 is slidably connected to a slide bar 124 to facilitate fixing a position of the chute, a connecting plate 112 is disposed on a side wall of the fan-shaped sheets 111 away from the chute 115, an arc-shaped limiting sheet 113 is disposed on a side of the connecting plate 112 away from the fan-shaped sheets 111, an air duct 117 is disposed between the fan-shaped sheets 111 to facilitate heat and air intake passing during operation, and winding cavities 116 are disposed on two sides of the connecting plate 112 to facilitate winding of the rotor winding.

In order to better fix the rotor sheet set 110, in this embodiment, fixing clamping pieces 121 are provided, through holes 122 are annularly distributed on the outer side walls of the fixing clamping pieces 121, fixing rods 123 are provided in the through holes 122, the fixing rods 123 are slidably connected with the fixing holes 114, and clamping rings 118 are provided at two ends of the fixing rods 123, so that the rotor sheet set 110 and the rotor support 120 can be fixed conveniently.

In order to reduce noise generated during operation, in this embodiment, the left end of the rotor support 120 is provided with a front sound shielding cover 130, the inner wall of the front sound shielding cover 130 is provided with an annular air duct 131, the left side wall of the front sound shielding cover 130 is provided with an air inlet hole 135, the inner cavity of the front sound shielding cover 130 is provided with a first sound absorbing cotton 135, the right side of the front sound shielding cover 130 is connected with a fixed cover 132 in a threaded manner, one side of the outer side wall of the fixed cover 132, which is close to the front sound shielding cover 130, is provided with threads 133, the right side wall of the fixed cover 132 is provided with an air outlet hole 134, the inner cavity of the fixed cover 132 is provided with a second sound absorbing cotton 136, and two sides, which are separated from the fixed cover 132 and the front sound shielding cover 130, are provided with fixing rings 137, so that heat can be discharged from the air outlet hole 134 behind the fixed cover 132 through the annular air duct 131 during rotation, the first sound absorbing cotton 135 and the second sound absorbing cotton 136 can absorb and reduce noise generated during rotation of the rotor, and the outer side walls of the front sound shielding cover 130 and the fixed cover 132 are smooth so as to reduce air turbulence generated during rotation.

The specific use process is as follows: when the rotor is used, the rotor sheet group 110 is used for winding a preset winding to the winding cavity 116, the rotor sheet group 110 is assembled to the rotor bracket 120 through the sliding strips 124, the fixing clamping pieces 121 are used for limiting at two ends, the fixing rods 123 penetrate through the rotor sheet group 110, the clamping rings 118 are used for fixing two ends of the fixing clamping pieces 121, the front sound shielding cover 130 and the fixing cover 132 are arranged above the rotor shaft 100 through the fixing rings 137, air inlet is blown from the left side of the front sound shielding cover 130 when the rotor rotates, the outer side walls of the front sound shielding cover 130 and the fixing cover 132 are smooth, air turbulence generated on the air passing through the surface when the rotor rotates is reduced, the air inlet holes 135 supply air to the interior of the rotor sheet group, the annular air channels 131 are driven to rotate under the rotation of the front sound shielding cover 130, heat is discharged from the air outlet holes 134 behind the fixing cover 132 through the annular air channels 131, the heat dissipation effect is enhanced, the air channels 117 are arranged between the fan-shaped pieces 111, the heat and the air inlets are convenient to pass through when in operation, the first sound absorbing cotton 135 and the second cotton 136 can absorb noise generated when the rotor rotates, and noise generated when the rotor rotates is further reduced.

Although the utility model has been described hereinabove with reference to embodiments, various modifications thereof may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the features of the disclosed embodiments may be combined with each other in any manner as long as there is no structural conflict, and the exhaustive description of these combinations is not given in this specification merely for the sake of omitting the descriptions and saving resources. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. A noise reduction rotor structure of a generator, comprising: rotor shaft (100), rotor shaft (100) surface is provided with rotor support (120), rotor support (120) lateral wall top is provided with rotor sheet group (110), rotor sheet group (110) both ends all are provided with fixed fastener (121), rotor support (120) left end is provided with anterior sound cover (130), anterior sound cover (130) right side is provided with fixed cover (132).

2. The noise reduction rotor structure of a generator according to claim 1, wherein: rotor sheet group (110) are including annular sector piece (111), a plurality of fixed orifices (114) have been seted up to sector piece (111) lateral wall, and a plurality of sector piece (111) lateral wall centripetal end is provided with spout (115), and a plurality of sector piece (111) are kept away from a lateral wall of spout (115) and are provided with connecting plate (112), and a plurality of connecting plate (112) are kept away from one side of sector piece (111) and are provided with arc spacing piece (113), a plurality of be provided with wind channel (117) between sector piece (111), a plurality of connecting plate (112) both sides are provided with winding cavity (116).

3. The noise reduction rotor structure of a generator according to claim 1, wherein: the outer side wall of the rotor bracket (120) is annularly provided with a slide bar (124), and the slide bar (124) is in sliding connection with the chute (115).

4. The noise reduction rotor structure of a generator according to claim 1, wherein: through holes (122) are formed in annular distribution of the outer side walls of the fixing clamping pieces (121), fixing rods (123) are arranged in the through holes (122), the fixing rods (123) are slidably connected with the fixing holes (114), and clamping rings (118) are arranged at two ends of the fixing rods (123).

5. The noise reduction rotor structure of a generator according to claim 1, wherein: the inner wall of the front sound shielding cover (130) is provided with an annular air duct (131), the left side wall of the front sound shielding cover (130) is provided with an air inlet hole (135), and the inner cavity of the front sound shielding cover (130) is provided with first sound absorbing cotton (136).

6. The noise reduction rotor structure of a generator according to claim 1, wherein: screw threads (133) are formed in one side, close to the front sound shielding cover (130), of the outer side wall of the fixed cover (132), air outlet holes (134) are formed in the right side wall of the fixed cover (132), second sound absorbing cotton (137) is arranged in an inner cavity of the fixed cover (132), and fixing rings (138) are arranged on two sides, away from the front sound shielding cover (130), of the fixed cover (132).