CN212454640U

CN212454640U - Crankcase cover with internal cooling air channel

Info

Publication number: CN212454640U
Application number: CN202021209778.0U
Authority: CN
Inventors: 罗昌国
Original assignee: China Lutian Machinery Co ltd
Current assignee: China Lutian Machinery Co ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-02-02
Anticipated expiration: 2030-06-24

Abstract

The utility model belongs to the technical field of generator components, in particular to a crankcase cover with an internal cooling air channel; the generator crankshaft cooling device comprises a cover body, wherein a crankshaft hole for a generator crankshaft to penetrate is formed in the cover body, an arc-shaped groove is formed in one side face of the cover body, a plurality of internal cooling air channels are formed in the cover body, inlets of the internal cooling air channels are located on the side wall of the cover body, and outlets of the internal cooling air channels are communicated with the arc-shaped groove; the utility model discloses be provided with many inside cooling air ducts inside the lid, the most heat of crankcase lid can be taken away in the wind channel to the wind current, and heat radiating area is big, and the radiating effect is good.

Description

Crankcase cover with internal cooling air channel

The technical field is as follows:

the utility model belongs to the technical field of the generator part, refer in particular to a crankcase cover with inside cooling air duct.

Background art:

when the generator works, the temperature of partial parts can be increased, and the overall performance of the generator is affected. In general, each component is cooled by a cooling air duct, a cooling oil path, or the like. The Chinese invention patent application (publication No. CN106168184A, application date 2016-08-27, and publication date 2016-11-30) discloses a crankshaft box cover, which comprises a cover body arranged circumferentially, wherein a crankshaft hole is formed in the center of the cover body, a crankshaft hole seat is arranged on the periphery of the crankshaft hole, the crankshaft hole and the crankshaft hole seat are coaxially arranged, a plurality of reinforcing ribs are arranged on the outer side of the crankshaft hole in a divergent manner, one end of each reinforcing rib is connected to the corresponding position on the outer edge of the corresponding crankshaft hole, the other end of each reinforcing rib is connected with the corresponding position on the inner side wall of the corresponding crankshaft hole seat, a heat dissipation cavity is formed between every two adjacent reinforcing ribs, a hanger is detachably connected to the cover body through a connecting piece, the hanger comprises a triangular angle iron main body, a connecting flange is arranged at the front part of the triangular angle iron main body. This crankcase lid forms the heat dissipation chamber through between the adjacent strengthening rib, can not realize the comprehensive heat dissipation to the crankcase lid, and the radiating effect is poor.

The invention content is as follows:

the utility model aims at providing a can realize dispelling the heat comprehensively to the crankcase lid, the crankcase lid that has inside cooling duct that the radiating effect is good.

The utility model discloses a realize like this:

the utility model provides a crankcase lid with inside cooling air duct, includes the lid, is provided with the bent axle hole that is used for supplying the generator crankshaft to pass on the lid, is provided with the arc recess on a side of lid, is provided with a plurality of inside cooling air ducts in the lid, and the import in a plurality of inside cooling air ducts is located the lateral wall of lid, export and arc recess intercommunication.

In the crankcase cover with the internal cooling air channel, the arc-shaped groove and the crank hole are arranged coaxially.

In the crankcase cover with the internal cooling air channel, the inner arc-shaped surface of the arc-shaped groove is a flow guide surface which is obliquely arranged.

In the crankcase cover with the internal cooling air channels, four internal cooling air channels are arranged, wherein inlets of three internal cooling air channels are exposed, and an inlet of the other internal cooling air channel is communicated with an induced air channel at the bottom of the crankcase.

In the crankcase cover with the internal cooling air channel, the cover body is further provided with a notch for increasing the air inlet area of the corresponding air inlet on the main frame of the silencer.

In one of the above crankcase covers with internal cooling air ducts, the cross section of the internal cooling air duct is rectangular.

In the crankcase cover with the internal cooling air channel, a plurality of mounting holes for mounting are formed in the outer edge of the cover body.

In foretell crankcase lid with inside cooling air duct, the lid includes the apron and is located the curb plate of apron outside border, be provided with the erection column on the apron, the bent axle hole is located the erection column, is provided with a plurality of bosss on the apron, inside cooling air duct sets up in the boss.

In the crankcase cover with the internal cooling air channel, a plurality of reinforcing ribs are arranged between the inner wall of the side plate and the mounting column, and the reinforcing ribs are positioned between the bosses or/and on the bottom surfaces of the bosses.

Compared with the prior art, the utility model outstanding advantage is:

1. the utility model discloses be provided with many inside cooling air ducts inside the lid, the wind flow channel can take away the most heat of crankcase cover through the wind channel, and heat radiating area is big, and the radiating effect is good, can cool off the internal machine oil temperature of generator box.

2. The utility model discloses set up inside cooling duct, compact structure inside the lid.

Description of the drawings:

fig. 1 is one of the front perspective views of the present invention;

fig. 2 is a second front perspective view of the present invention;

fig. 3 is a back perspective view of the present invention;

fig. 4 is a left side view of the present invention;

fig. 5 is a sectional view a-a of fig. 4.

In the figure: 1. a cover body; 2. a crankshaft bore; 3. an arc-shaped groove; 4. an internal cooling air duct; 5. an inlet; 6. A side wall; 7. an outlet; 8. a notch; 9. mounting holes; 10. a boss; 11. mounting a column; 12. and (5) reinforcing ribs.

The specific implementation mode is as follows:

the invention will now be further described with reference to specific embodiments, with reference to figures 1 to 5:

the utility model provides a crankcase cover with inside cooling air duct, includes lid 1, is provided with the bent axle hole 2 that is used for supplying the generator crankshaft to pass on lid 1, is provided with arc recess 3 on a side of lid 1, is provided with a plurality of inside cooling air ducts 4 in lid 1, and the import 5 of a plurality of inside cooling air ducts 4 is located the lateral wall 6 of lid 1, export 7 and arc recess 3 intercommunication. The utility model discloses run through the inside of lid 1 with cooling duct 4, can improve the cooling effect.

The position of the arc-shaped groove 3 is set according to actual needs, and the arc-shaped groove 3 and the crankshaft hole 2 are arranged coaxially. The radian of the arc-shaped groove 3 is also set according to actual requirements.

In order to improve the air guide effect, the inner arc-shaped surface of the arc-shaped groove 3 is a guide surface which is obliquely arranged. When wind enters the internal cooling air duct 4 from the inlet 5, the wind enters the arc-shaped groove 3 from the outlet 7, and then is conveyed outwards by the flow guide surface.

A plurality of inside cooling air duct 4 are provided with four. The specific positions of the four internal cooling air channels are set according to actual needs, and the air introduced by different cooling air channels can be conveyed. In the present embodiment, 3 of the four internal cooling air ducts 4 are directly communicated with the outside, and are used for inputting air outside the crankcase, introducing the air into the inner cavity of the muffler shell, and cooling the muffler in the introduction process, thereby finally cooling the muffler. And the other internal cooling air channel is communicated with the induced air channel at the bottom of the crankcase body and is used for introducing outside air into the inner cavity of the silencer shell through the induced air channel, so that the silencer is cooled in the introduction process, and finally, the silencer is cooled. The air inducing channel is formed by arranging a bottom air inducing plate at the bottom of the crankcase body and forming the air inducing channel between the bottom air inducing plate and the bottom of the crankcase body. The other end of the bottom air inducing plate is connected with the motor shell, so that the other end of the air inducing channel is communicated with the inner cavity of the motor shell.

The utility model discloses be applied to on the generator assembly, install between the box of generator assembly and silencer owner frame. Be provided with the air intake on the silencer owner frame, the utility model discloses still be provided with the breach 8 of the air inlet area of this air intake of increase on the lid 1, avoid answering the utility model discloses a set up and influence the intake of the air intake on the silencer owner frame, influence the cooling effect.

Inside cooling duct 4 is transversal to personally submit the rectangle, can increase the cooling area of wind, improves the cooling effect.

The utility model discloses be provided with a plurality of mounting holes 9 that are used for the installation on the outer border of lid 1, the fastener passes mounting hole 9 will the utility model discloses install on the box of crankcase.

As shown in fig. 3, the cover body 1 includes a cover plate and a side plate extending in one direction along an outer edge of the cover plate, a mounting post 11 is disposed on the cover plate, the crank hole 2 is located on the mounting post 11, an outer side wall of the side plate is the above-mentioned side wall 6, a boss 10 is disposed at a position where an internal cooling air duct is disposed, the internal cooling air duct is disposed in the boss 10, a reinforcing rib 12 is disposed between the side plate and the mounting post 11, and the reinforcing rib is located between the boss 10 and the boss 10 or located on a bottom surface of the boss 10. The cover plate with the structure is thin in thickness, the heat dissipation block is arranged, and the overall strength is not affected.

In the present specification, the terms "upper", "lower", "left", "right", "middle" and "one" are used for convenience of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the corresponding parts may be changed or adjusted without substantial technical changes.

The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a crankcase lid with inside cooling air duct which characterized in that: the generator crankshaft cooling device comprises a cover body (1), a crankshaft hole (2) for a generator crankshaft to penetrate is formed in the cover body (1), an arc-shaped groove (3) is formed in one side face of the cover body (1), a plurality of internal cooling air channels (4) are formed in the cover body (1), inlets (5) of the internal cooling air channels (4) are located in side walls (6) of the cover body (1), and outlets (7) are communicated with the arc-shaped groove (3).

2. A crankcase cover having an internal cooling air duct according to claim 1, wherein: the arc-shaped groove (3) and the crankshaft hole (2) are arranged coaxially.

3. A crankcase cover with internal cooling air ducts according to claim 1 or 2, characterized in that: the inner arc-shaped surface of the arc-shaped groove (3) is a flow guide surface which is obliquely arranged.

4. A crankcase cover having an internal cooling air duct according to claim 1, wherein: the four internal cooling air channels (4) are arranged, wherein inlets of three internal cooling air channels are exposed, and an inlet of the other internal cooling air channel is communicated with an air inducing channel at the bottom of the crankcase.

5. A crankcase cover having an internal cooling air duct according to claim 1, wherein: the cover body (1) is also provided with a notch (8) for increasing the air inlet area of the corresponding air inlet on the main frame of the silencer.

6. A crankcase cover having an internal cooling air duct according to claim 1, wherein: the cross section of the internal cooling air duct (4) is rectangular.

7. A crankcase cover having an internal cooling air duct according to claim 1, wherein: the outer edge of the cover body (1) is provided with a plurality of mounting holes (9) for mounting.

8. A crankcase cover having an internal cooling air duct according to claim 1, wherein: the cover body (1) comprises a cover plate and side plates located on the outer edge of the cover plate, mounting columns (11) are arranged on the cover plate, the crankshaft hole (2) is located on the mounting columns (11), a plurality of bosses (10) are arranged on the cover plate, and the internal cooling air duct (4) is arranged in the bosses (10).

9. A crankcase cover having an internal cooling air duct according to claim 8, wherein: a plurality of reinforcing ribs (12) are arranged between the inner wall of the side plate and the mounting column (11), and the reinforcing ribs (12) are positioned between the boss (10) and the boss (10) or/and on the bottom surface of the boss (10).