CN209823561U

CN209823561U - Single-bearing generator

Info

Publication number: CN209823561U
Application number: CN201920954489.4U
Authority: CN
Inventors: 吴迪
Original assignee: Yourui Fuzhou Power Manufacturing Co Ltd
Current assignee: Yourui Fuzhou Power Manufacturing Co Ltd
Priority date: 2019-06-24
Filing date: 2019-06-24
Publication date: 2019-12-20
Anticipated expiration: 2029-06-24

Abstract

The utility model relates to a single bearing generator, including rotor, stator, shell, fan, rear end cap, its main points lie in, on the bearing was fixed in the rear end cap, the rotor shaft passed through the bearing and installed on the rear end cap, and rotor, fan are fixed in respectively on the rotor shaft to be located the both sides of bearing respectively, the rotor is located the inboard of rear end cap, and the fan is located the outside of rear end cap. The utility model discloses move the opposite side of bearing to cooling fan, be located the both sides of bearing respectively with the rotor, make rotor shaft from original cantilever beam, become the fulcrum axle, both ends all have the load, play the balancing act each other, though not can not the complete balance because of weight varies between the two, but more original stack state, the improvement has been greatly, under equal life's the prerequisite, the diameter of rotor shaft can reduce 5-20%, supporting bearing also can use less size, be favorable to reducing complete machine weight, the length of shell also can shorten simultaneously, the processing degree of difficulty of shell has been reduced, manufacturing cost.

Description

Single-bearing generator

Technical Field

The utility model belongs to the generator especially belongs to single bearing generator.

Background

The existing single-bearing generator is like products of Stanford and Leisenma, and a generator patent with patent number ZL201010166562.5, the structure schematic diagram is shown in figures 1 and 2, the generator mainly comprises a shell 1, a bearing 16, a rear end cover 4, a rotor 5, a rotor shaft 51, a stator 6 and a fan 8, the fan and the rotor are sleeved on the rotor shaft, are positioned at the same side of the bearing and are arranged at the inner side of the bearing, and because the rotor shaft is a cantilever beam, the weight and the movement of the fan fixed at the tail end of the rotor shaft increase the load of the rotor shaft, and the shaft diameter needs to be increased to ensure the strength of the rotor shaft, thereby increasing the whole weight.

Disclosure of Invention

The utility model aims to overcome the shortcoming that above-mentioned generator exists, provide a can reduce the load of rotor shaft, improve rotor shaft operational environment's single bearing generator, be favorable to reducing complete machine weight.

The utility model discloses the technical scheme who adopts is a single bearing generator, including rotor, stator, shell, fan, rear end cap, its main points lie in, on the bearing was fixed in the rear end cap, the rotor shaft passed through the bearing and installs on the rear end cap, and rotor, fan are fixed in respectively on the rotor shaft to be located the both sides of bearing respectively, the rotor is located the inboard of rear end cap, and the fan is located the outside of rear end cap.

The rear end cap is secured to the inner surface of the housing.

The rear end cover is provided with rear end cover air holes, and the side surface of the front end of the shell is provided with a plurality of shell air holes.

The fan is provided with an air inlet cover, and the air inlet cover covers the fan and is fixed on the outer surface of the generator shell.

The surface of the air inlet cover is provided with air holes.

The utility model discloses an improve on the basis of current single bearing generator, move the opposite side of bearing to cooling fan, be located the both sides of bearing respectively with the rotor, make the rotor shaft follow original cantilever beam, become the fulcrum axle, both ends all have the load, play the equilibrium effect each other, though the two still can not the complete balance because of weight varies, but more original stack state, greatly improve, under equal life's the prerequisite, the diameter of rotor shaft can reduce 5-20%, supporting bearing also can use less, be favorable to reducing complete machine weight, simultaneously because the rotor shaft in shell inside shortens, the length of shell also can shorten simultaneously, the processing degree of difficulty of shell has been reduced, manufacturing cost, the work efficiency is improved. When the utility model discloses when being applied to the silence unit, the cooling generator heat source just can concentrate and arrange outside the silence case, has created the advantage for the inside temperature reduction of silence case.

Drawings

FIG. 1 is a schematic view of a conventional single-bearing generator

FIG. 2 is a schematic diagram of a single-bearing generator

FIG. 3 is a schematic view of the principle structure of the present invention

Figure 4 is a cross-sectional view of the adapter 3 taken along line C-C

FIG. 5 is a perspective view of the present invention

FIG. 6 is a perspective view of the air inlet cover opened in FIG. 5

Wherein: 1 casing 12 fixing rib 13 position limiting rib 14 cooling air duct 16 bearing 32 casing air hole 4 rear end cover 44 rear end cover air hole 5 rotor 51 rotor shaft 6 stator 8 fan 81 air inlet cover 811 air hole.

Detailed Description

The present invention will be described in detail with reference to the drawings

As shown in fig. 3-6, a single-bearing generator is improved based on the existing single-bearing generator, the main components are the same, and the generator mainly comprises a housing 1, a bearing 16, a rear end cover 4, a rotor 5, a rotor shaft 51, a stator 6 and a fan 8, the bearing is fixed on the rear end cover, the rotor shaft 51 is mounted on the rear end cover 4 through the bearing 16, the difference is that the fixing position of the fan is different, and the corresponding related components are improved, the rotor and the fan are respectively fixed on the rotor shaft and respectively located at two sides of the bearing, the rotor is located at the inner side of the rear end cover, the fan is located at the outer side of the rear end cover, and an air inlet cover 81 is covered outside the fan. The outer surface of the shell is changed into the inner surface of the shell from the original outer surface fixed on the shell, and the outer surface of the shell of the generator is used for fixing the air inlet cover. The rear end cover 4 is provided with a rear end cover air hole 44, the side surface of the front end of the shell 1 is provided with a plurality of shell air holes 32, and the surface of the air inlet cover is provided with air holes 811.

The fixed ribs 12 and the limiting ribs 13 are uniformly arranged in the shell 1 at intervals along the circumference, and gaps formed by the fixed ribs 12 and the limiting ribs 13 at intervals become cooling air ducts 14. The air passes through the air holes of the air inlet cover, the air holes of the rear end cover, the cooling air duct and the air holes of the shell under the driving of the fan, and the internal and external circulation of the air is completed. The rest of the parts which are not described are the same as the prior art.

Claims

1. The utility model provides a single bearing generator, is including rotor (5), stator (6), shell (1), fan (8), rear end cap (4), its characterized in that, the bearing is fixed in on the rear end cap, and rotor shaft (51) are installed on rear end cap (4) through bearing (16), and rotor, fan are fixed in on the rotor shaft respectively to be located the both sides of bearing respectively, the rotor is located the inboard of rear end cap, and the fan is located the outside of rear end cap.

2. A single bearing generator according to claim 1 wherein the rear end cap is secured to the inner surface of the housing.

3. A single bearing generator according to claim 1 or 2, wherein the rear end cap (4) is provided with rear end cap air holes (44), and the side of the front end of the housing (1) is provided with a plurality of housing air holes (32).

4. A single-bearing generator according to claim 1, wherein there is an air inlet cover (81) which covers the fan and is secured to the outer surface of the generator housing.

5. A single bearing generator according to claim 3, wherein the air inlet hood is provided with air holes (811) on its surface.