CN212154979U

CN212154979U - Engine

Info

Publication number: CN212154979U
Application number: CN202020900262.4U
Authority: CN
Inventors: 梁开南
Original assignee: Taizhou Yizhong Pump Co ltd
Current assignee: Taizhou Yizhong Pump Co ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2020-12-15
Anticipated expiration: 2030-05-25

Abstract

The utility model belongs to the technical field of the gasoline engine generator, refer in particular to an engine, including engine housing, fan housing and generator housing, engine housing forms by the concatenation around shell and the engine backshell before the engine, and the fan housing casing forms by the concatenation around shell and the fan housing backshell before the fan housing, and the generator housing forms by the concatenation around shell and the backshell before the generator, the shell is injection moulding's integral type structure before shell and fan housing backshell and the engine backshell and the generator before the engine. The utility model discloses a with before the engine between shell and the fan housing backshell, form the integral type structure between engine backshell and the generator front shell, effectively shortened the utility model discloses the bent axle that corresponds outwards stretches out engine housing and stretches into generator housing's length and outwards stretches out engine housing and stretches into and stretch into the length of fan housing casing to promoted the anti bending strength of corresponding bent axle, not easy bending deformation and long service life.

Description

Engine

The technical field is as follows:

the utility model belongs to the technical field of the petrol generator, refer in particular to an engine.

Background art:

the existing engine-type generator comprises a generator, an engine and a cooling fan, wherein one end of an engine crankshaft extends out of an engine shell and extends into the engine shell to be linked with an input shaft of the generator, and the other end of the engine crankshaft extends out of the engine shell and extends into a fan cover to be connected with the cooling fan.

Therefore, the length of the crankshaft is longer, and the bending strength of the crankshaft is weakened along with the longer length, so that the crankshaft has low service life and is easy to bend and deform. Moreover, the generator, the engine and the cooling fan are all independent and exist independently, so that the assembly and disassembly are complex and time-consuming.

The invention content is as follows:

the utility model aims at providing an engine that required length of bent axle is shorter, spare part is small in quantity and the dismouting of being convenient for.

The utility model discloses a realize like this:

an engine comprises an engine shell, a fan cover shell and a generator shell, wherein the engine shell is formed by splicing an engine front shell and an engine rear shell front and back;

or the engine rear shell and the generator front shell are of an integrated structure formed by injection molding;

or the engine front shell and the fan cover rear shell as well as the engine rear shell and the generator front shell are all of injection molding integrated structures.

In the above engine, the front cover plate includes a front side surface extending forward to form the hood rear shell, and a rear side surface extending rearward to form the engine front shell.

In the engine, the engine rear cover plate is included, the front side surface of the engine rear cover plate extends forwards to form the engine rear shell, and the rear side surface of the engine rear cover plate extends backwards to form the generator front shell.

In the above engine, the engine front casing or the engine rear casing includes an engine cylinder and an engine end cover covering an upper port of the engine cylinder, and the outer side walls of the engine cylinder and the engine end cover are provided with heat dissipation fins.

In the above engine, the size area of the fan housing rear shell is larger than that of the engine front shell, and the fan housing rear shell is provided with notches corresponding to the positions of the heat dissipation fins.

In the engine, an air guiding cover with an opening at one side is arranged on the front shell or the rear shell of the engine, which is positioned outside the radiating fins, and the opening of the air guiding cover corresponds to the notch.

In the above engine, the wind scooper includes an upper cover body covering the outer side of the upper portion of the heat dissipating fin and a lower cover body covering the outer side of the lower portion of the heat dissipating fin, one end portion of the upper cover body and a corresponding end portion of the lower cover body are stacked up and down and fixed on the engine cylinder body or the engine end cover or the engine front case or the engine rear case through a fastener, and the other end portions of the upper cover body and the lower cover body are fixed on the engine cylinder body or the engine end cover or the engine front case or the engine rear case through fasteners.

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

the utility model effectively shortens the length of the crankshaft corresponding to the utility model extending out of the engine shell and into the generator shell and the length of the crankshaft extending out of the engine shell and into the fan housing shell by forming an integrated structure between the engine front shell and the fan housing rear shell and between the engine rear shell and the generator front shell, thereby improving the bending strength of the corresponding crankshaft, preventing the crankshaft from bending and deforming easily and prolonging the service life; simultaneously, effectively reduced the utility model discloses a spare part quantity to the dismouting is convenient for.

Description of the drawings:

fig. 1 is an overall perspective view of the present invention;

FIG. 2 is a second overall perspective view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is an overall exploded view of the present invention.

In the figure: 1. an engine front shell; 2. an engine rear case; 3. a fan housing rear shell; 4. a generator front housing; 5. an engine end cover; 6. a heat dissipating fin; 7. a wind scooper; 8. an upper cover body; 9. a lower cover body.

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 4:

the first embodiment is as follows:

the utility model provides an engine, includes engine housing, fan housing and generator housing, and engine housing forms by the concatenation before the engine around 1 with engine backshell 2, and the fan housing is formed by concatenation around fan housing front shell and the fan housing backshell 3, and generator housing forms by concatenation around generator front shell 4 and the generator backshell, before the engine 1 and fan housing backshell 3 and engine backshell 2 and generator front shell 4 are injection moulding's integral type structure.

The utility model effectively shortens the length of the corresponding crankshaft which extends out of the engine shell and into the generator shell and the length of the corresponding crankshaft which extends out of the engine shell and into the fan housing shell by forming an integrated structure between the engine front shell 1 and the fan housing rear shell 3 and between the engine rear shell 2 and the generator front shell 4, thereby improving the bending strength of the corresponding crankshaft, preventing the crankshaft from being deformed by bending and having long service life; simultaneously, effectively reduced the utility model discloses a spare part quantity to the dismouting is convenient for.

Wherein, the specific structure of the engine front shell 1 and the fan housing rear shell 3 is as follows: the front side surface of the engine front cover plate extends forwards to form the fan housing rear shell 3, the rear side surface extends backwards to form the engine front shell 1, namely the distance between the engine front shell 1 and the fan housing rear shell 3 is only the thickness of the engine front cover plate.

The specific structures of the engine rear shell 2 and the generator front shell 4 are as follows: the engine rear cover plate is characterized by comprising an engine rear cover plate, wherein the front side surface of the engine rear cover plate extends forwards to form the engine rear shell 2, the rear side surface of the engine rear cover plate extends backwards to form the generator front shell 4, and the distance between the engine rear shell 2 and the generator front shell 4 is only the thickness of the engine rear cover plate.

Meanwhile, the engine front shell 1 comprises an engine cylinder body and an engine end cover 5 covering the upper port of the engine cylinder body, and the outer side walls of the engine cylinder body and the engine end cover 5 are provided with radiating fins 6.

And in order to improve the utility model discloses a rate of heat dissipation, the size area of fan housing backshell 3 is greater than the size area of casing 1 before the engine, offers on the fan housing backshell 3 with the corresponding breach in radiating fin 6 positions. Therefore, in the actual use process, the heat dissipation impeller arranged in the fan cover shell can generate airflow and blow the airflow to the heat dissipation fins 6 from the notches, so that the heat dissipation rate of the heat dissipation fins 6 is increased.

In order to make the heat dissipating fins 6 sufficiently contact with the air flow, an air guiding cover 7 having an opening at one side is provided on the engine front case 1 located outside the heat dissipating fins 6, and the opening of the air guiding cover 7 corresponds to the notch.

Furthermore, the specific structure of the wind scooper 7 is as follows: the wind scooper 7 comprises an upper cover body 8 covering the outer side of the upper part of the radiating fin 6 and a lower cover body 9 covering the outer side of the lower part of the radiating fin 6, wherein one end part of the upper cover body 8 and the corresponding end part of the lower cover body 9 are vertically stacked and fixed on the engine cylinder body or the engine end cover 5 or the engine front shell 1 or the engine rear shell 2 through a fastening piece, and the other end parts of the upper cover body 8 and the lower cover body 9 are fixed on the engine cylinder body or the engine end cover 5 or the engine front shell 1 or the engine rear shell 2 through the fastening piece.

Example two:

the structure of the present embodiment is substantially the same as that of the above embodiment, and the main difference is: only the engine front shell 1 and the fan housing rear shell 3 are of an injection molding integrated structure, and a split structure is arranged between the engine rear shell 2 and the generator front shell 4.

Example three:

the structure of the present embodiment is substantially the same as that of the above embodiment, and the main difference is: the engine rear shell 2 and the generator front shell 4 are of an injection molding integrated structure, and a split structure is arranged between the engine front shell 1 and the fan cover rear shell 3.

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 an engine, including engine housing, fan housing and generator housing, engine housing is formed by concatenation before engine shell (1) and engine backshell (2) around, and the fan housing is formed by concatenation before fan housing and fan housing backshell (3) around, and the generator housing is formed by concatenation before generator shell (4) and the generator backshell, its characterized in that: the engine front shell (1) and the fan cover rear shell (3) are of an injection molding integrated structure;

or the engine rear shell (2) and the generator front shell (4) are in an injection molding integrated structure;

or the engine front shell (1) and the fan cover rear shell (3) as well as the engine rear shell (2) and the generator front shell (4) are all of injection molding integrated structures.

2. An engine according to claim 1, wherein: the front side surface of the engine front cover plate extends forwards to form the fan cover rear shell (3), and the rear side surface extends backwards to form the engine front shell (1).

3. An engine according to claim 1 or 2, characterized in that: the generator rear cover comprises an engine rear cover plate, wherein the front side surface of the engine rear cover plate extends forwards to form the engine rear shell (2), and the rear side surface of the engine rear cover plate extends backwards to form the generator front shell (4).

4. An engine according to claim 1, wherein: the engine front shell (1) or the engine rear shell (2) comprises an engine cylinder body and an engine end cover (5) covering the upper port of the engine cylinder body, and radiating fins (6) are arranged on the outer side walls of the engine cylinder body and the engine end cover (5).

5. An engine according to claim 4, wherein: the size area of the fan housing rear shell (3) is larger than that of the engine front shell (1), and notches corresponding to the positions of the radiating fins (6) are formed in the fan housing rear shell (3).

6. An engine according to claim 5, wherein: an air guide cover (7) with an opening at one side is arranged on the front engine shell (1) or the rear engine shell (2) positioned outside the radiating fins (6), and the opening of the air guide cover (7) corresponds to the notch.

7. An engine according to claim 6, wherein: the wind scooper (7) comprises an upper cover body (8) covering the outer side of the upper portion of the radiating fin (6) and a lower cover body (9) covering the outer side of the lower portion of the radiating fin (6), one end portion of the upper cover body (8) and the corresponding end portion of the lower cover body (9) are arranged in an up-and-down stacking mode and fixed to an engine cylinder body or an engine end cover (5) or an engine front shell (1) or an engine rear shell (2) through fasteners, and the other end portions of the upper cover body (8) and the lower cover body (9) are fixed to the engine cylinder body or the engine end cover (5) or the engine front shell (1) or the engine rear shell (2) through fasteners.