CN201639411U

CN201639411U - Lightweight fully enclosed motor housing

Info

Publication number: CN201639411U
Application number: CN2010201440504U
Authority: CN
Inventors: 霍向飞; 程卫东; 贾兆雄; 王淑萍
Original assignee: Yongji Xinshisu Electric Equipment Co Ltd
Current assignee: CNR SHIP & OCEAN ENGINEERING DEVELOPMENT Co Ltd
Priority date: 2010-03-26
Filing date: 2010-03-26
Publication date: 2010-11-17
Anticipated expiration: 2020-03-26

Abstract

The utility model relates to a motor housing, in particular to a lightweight fully enclosed motor housing bringing convenience for reducing the overall weight and volume of the motor and lowering the motor cost, which solves the problems existed in the conventional air-cooling type fully enclosed motor of large volume, large weight and high cost. The motor housing comprises a cylindrical housing and end covers, wherein annular fixing bodies are respectively arranged at two ends of the cylindrical housing; at least three screw holes are formed on each annular fixing body; fixing lugs are arranged on the outer edges of the two end covers and screw holes are formed on the fixing lugs; the end covers and the annular fixing bodies are fixedly mounted together through bolts and screw holes; a plurality of radiating fins positioning between the two annular fixing bodies are uniformly distributed on the outer wall of the cylindrical motor housing; two ends of the radiating fins respectively opposite to the annular fixing bodies; and ventilation holes positioning between adjacent screw holes are formed on the annular fixing bodies. The lightweight fully enclosed motor housing with simple and reasonable structure can effectively reduce the weight and the volume of the motor end covers and the housing in order to further effectively reduce the volume and the weight of the motor and save cost, thereby being fully suitable for various fully enclosed motors.

Description

Lightweight totally enclosed machine shell

Technical field

The utility model relates to motor housing, specifically is a kind of lightweight totally enclosed machine shell that reduces motor overall weight volume, reduces motor cost that is beneficial to.

Background technology

For improving the protective capacities of environment to external world, existing motor all adopts full-closed structure, but the structural totally-enclosed decline that must bring the motor radiating ability.Therefore, for improving the heat-sinking capability of totally enclosed machine, a lot of fin are set on motor housing usually, constitute cooling air duct, and coaxial fan is installed or independent blower fan provides wind regime at the non-transmision end of motor, and the fin on the shell is carried out air-cooled, realize motor radiating.

As shown in Figure 1, adopt the shell air cooling way to realize the totally enclosed machine typical structure of heat radiation at present, the both ends of the surface of motor case 12 are passed through fixedly

end cap

14,15 of bolt 13 respectively, casing 12 is welded with fin 16, fin 16 on the casing 12 constitutes many cooling air channels, and motor rotates the back and drives external fan 17 blow air cold sinks 16.Because casing 12 two ends need install and fix

end cap

14,15, for realizing the bolt of

end cap

14,15 and casing 12 end faces, on

end cap

14,15 and casing 12 end faces, reserve the screw 18,19 of set bolt 13, casing 12 wall thickness thicker (as shown in Figure 3), two

ends end cap

14,15 external diameters are big (as shown in Figure 2) also, behind the casing 12 external welding fin 16, the volume of motor case and weight are not low like this, and motor cost is higher relatively.

Summary of the invention

The utility model provides a kind of lightweight totally enclosed machine shell in order to solve the existing air-cooled problem that totally enclosed machine casing volume is big, weight is big, cost is high of shell.

The utility model is to adopt following technical scheme to realize: lightweight totally enclosed machine shell, comprise the tubular casing, the end cap that installs and fixes respectively with tubular casing both ends of the surface, the both ends of the surface equal diameter of end cap and tubular casing is provided with, the two ends of tubular casing are respectively arranged with the ring-type fixed body along casing outer wall circumference, along the circumferential direction uniformly on the ring-type fixed body offer at least three screws, the two end cap outward flange be provided with the ring-type fixed body on the corresponding fixedly ear in screw distribution orientation, fixedly have screw on the ear, end cap is mounted on bolt by screw on screw on the ring-type fixed body and the fixing ear with the ring-type fixed body, uniformly on the tubular casing outer wall be provided with some fin between two ring-type fixed bodies, the two ends of fin along the circumferential direction offer some ventilation holes that are positioned between adjacent screw respectively towards the ring-type fixed body on the ring-type fixed body.

Compared with prior art, the utility model is set up the ring-type fixed body at the two ends of casing, in the end cap outer rim fixedly ear is set, at the ring-type fixed body with the screw of realizing that bolt is installed fixedly is set on the ear, realize installing and fixing of end cap and casing end face with this structure, thereby make that the wall thickness of casing can attenuate, the diameter of end cap can reduce, realize end cap, the casing lightweight, volume reduces to some extent, guaranteeing that motor internal is hermetically sealed, under the external refrigeration wind path prerequisite, reduce the weight and volume of motor housing integral body, thereby reduced by whole motor weight and volume, and saved the production cost of motor; Be processed with ventilation hole on the ring-type fixed body, the cooling air that makes external fan agitate can pass through from ventilation hole, cooling casing mid portion fin; In addition, the fixedly fan housing of external fan also is convenient in the setting of ring-type fixed body.

The utility model is rational in infrastructure, succinct, can effectively reduce electric motor end cap and casing weight and volume, thereby effectively reduces the volume and the weight of motor, saves cost, is applicable to all types of totally enclosed machines fully.

Description of drawings

Fig. 1 realizes the totally enclosed machine typical structure schematic diagram of heat radiation for existing shell air cooling way;

Fig. 2 is the typical structure schematic diagram of end cap among Fig. 1;

Fig. 3 is the typical structure schematic diagram of casing among Fig. 1;

Fig. 4 is the end cover structure schematic diagram of shell described in the utility model;

Fig. 5 is the casing structure schematic diagram of shell described in the utility model;

Fig. 6 is the end view of Fig. 5;

Fig. 7 is the structural representation that the utility model end cap cooperates with casing;

Fig. 8 is the application structure schematic diagram of shell described in the utility model;

Among the figure: 1-tubular casing; 2,3-end cap; 4,5-ring-type fixed body; The 6-screw; 7-is ear fixedly; The 8-screw; The 9-bolt; The 10-fin; The 11-ventilation hole; The 12-casing; The 13-bolt; 14,15-end cap; The 16-fin; The 17-external fan; 18,19-screw.

Embodiment

Shown in Fig. 4-8, lightweight totally enclosed machine shell, comprise tubular casing 1, the end cap 2 that installs and fixes respectively with tubular casing 1 both ends of the surface, 3, end cap 2,3 are provided with the both ends of the surface equal diameter of tubular casing 1, the two ends of tubular casing 1 are respectively arranged with ring-type fixed body 4 along casing 1 outer wall circumference, 5, ring-type fixed body 4, along the circumferential direction uniform at least three screws 6 that offer on 5, two end cap 2,3 outward flanges are provided with and ring-type fixed body 4, the fixedly ear 7 of screw 6 distribution orientation correspondences on 5, fixedly have screw 8 on the ear 7, end cap 2,3 with ring-type fixed body 4,5 by ring-type fixed body 4, screw 6 is mounted on bolt 9 with screw 8 on the fixing ear 7 on 5, uniformly on tubular casing 1 outer wall be provided with some two ring-type fixed bodies 4 that are positioned at, fin 10 between 5, the two ends of fin 10 are respectively towards ring-type fixed body 4,5, ring-type fixed body 4, along the circumferential direction offer some ventilation holes 11 that are positioned at 6 of adjacent screws on 5.During concrete enforcement, ring-type fixed body 4,5 and tubular casing 1 can lump together by the parts soldering group, or form integral structure by forging type.

Claims

1. lightweight totally enclosed machine shell, comprise tubular casing (1), the end cap (2 that installs and fixes respectively with tubular casing (1) both ends of the surface, 3), end cap (2,3) the both ends of the surface equal diameter with tubular casing (1) is provided with, it is characterized in that: the two ends of tubular casing (1) are respectively arranged with ring-type fixed body (4 along casing (1) outer wall circumference, 5), ring-type fixed body (4,5) along the circumferential direction uniform at least three screws (6) that offer on, two end cap (2,3) outward flange is provided with and ring-type fixed body (4,5) the fixedly ear (7) of screw (6) distribution orientation correspondence on, fixedly have screw (8) on the ear (7), end cap (2,3) with ring-type fixed body (4,5) by ring-type fixed body (4,5) going up screw (6) is mounted on bolt (9) with screw (8) on the fixing ear (7), uniformly on tubular casing (1) outer wall be provided with some two ring-type fixed bodies (4 that are positioned at, 5) fin between (10), the two ends of fin (10) are respectively towards ring-type fixed body (4,5), the ring-type fixed body (4,5) along the circumferential direction offer some ventilation holes (11) that are positioned between adjacent screw (6) on.