CN212319176U

CN212319176U - Flywheel housing assembly with water drainage and dust prevention structure

Info

Publication number: CN212319176U
Application number: CN202020135280.8U
Authority: CN
Inventors: 尚星宇; 李玉松; 徐俊; 徐海洋
Original assignee: Dongfeng Cummins Engine Co Ltd
Current assignee: Dongfeng Cummins Engine Co Ltd
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2021-01-08
Anticipated expiration: 2030-01-21

Abstract

The utility model discloses a bell housing assembly with drainage dustproof construction relates to engine starting system technical field, specifically includes bell housing, gasket, apron and bolt, the apron passes through bolt fixed mounting on the slope structure an of bell housing bottom slope, and is equipped with the gasket in the junction of bolt and bell housing between apron and the bell housing. The structure of the utility model can solve the problem that the drainage of accumulated water entering the inner part of the flywheel shell of the engine is blocked, and simultaneously meets the dustproof requirement of the engine; in addition, when the engine is maintained and repaired regularly, the lower end cover plate of the flywheel shell can be detached, and the internal cleanliness and the part quality condition of the flywheel shell are checked.

Description

Flywheel housing assembly with water drainage and dust prevention structure

Technical Field

The utility model relates to an engine starting system technical field specifically is a bell housing assembly with drainage dustproof construction.

Background

Present commercial car, equipment such as engineering machine tool, wade water or rainy day during operation, water can pass through bell housing and starter, the gearbox junction enters into inside the bell housing, because current bell housing design is for dustproof, the wash port is not designed to the bell housing bottom, ponding leads to the bell housing bottom to rust in the inside unable discharge of bell housing, the rust stops for a long time inside the bell housing, the sealing performance to sealing oil behind the bent axle brings very big risk, during customer's maintenance of equipment simultaneously, produce very big complaint behind the discovery bell housing behind a large amount of rust. In order to solve the problem, the new design of the flywheel housing needs to meet the drainage function under the condition of meeting the dustproof function.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bell housing assembly with drainage dustproof construction to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a flywheel housing assembly with a water-draining and dust-preventing structure comprises a flywheel housing, a gasket, a cover plate and a bolt, wherein the cover plate is fixedly arranged on an inclined structure which is inclined at the bottom of the flywheel housing through the bolt;

the flywheel shell, the design of bottom has the slope structure, slope structure and flywheel shell integrated into one piece, the slope structure is the rectangle cyclic annular, 130mm are becoming to outer ring size length L1, 90mm are becoming to wide B1, 110mm are becoming to the inner ring size length L2, 60mm are becoming to wide B2, the chamfer R of inner ring four corners department is 20mm, four corners department between inner ring and the outer ring machine has threaded through-hole.

As a further aspect of the present invention: the inclination angle of the bottom inclined structure is alpha, and alpha is 20 degrees.

As a further aspect of the present invention: the gasket is an annular gasket with the thickness of 1.5mm, and the gasket is fixedly arranged between the cover plate and the inclined structure of the flywheel shell.

As a further aspect of the present invention: the apron be the rectangle, the apron size is the same with bell housing bottom slope structure, the apron passes through bolt fixed mounting on bell housing slope structure, the welding of apron top has a box structure, the size of box structure and the inner ring size phase-match of bell housing bottom slope structure are long L4 ═ 110mm respectively, wide L4 ═ 60mm, high H4 ═ 20mm, the chamfer r of box structure four corners department ═ 20mm, the high water drainage tank of 3mm has all been seted up to four sides of box structure.

As a further aspect of the present invention: the box-type structure welding in the top of apron, box-type structure inner structure adopts labyrinth design scheme, four baffle intersection welding of thickness 1mm are on box-type structure inner wall, adjacent baffle clearance 4 mm.

Compared with the prior art, the beneficial effects of the utility model are that: the structure of the utility model can solve the problem that the drainage of accumulated water entering the inner part of the flywheel shell of the engine is blocked, and simultaneously meets the dustproof requirement of the engine; in addition, when the engine is maintained and repaired regularly, the lower end cover plate of the flywheel shell can be detached, and the internal cleanliness and the part quality condition of the flywheel shell are checked.

Drawings

Fig. 1 is a schematic structural diagram of a flywheel housing assembly with a water-draining and dust-preventing structure.

FIG. 2 is a rear view of a flywheel housing assembly with a drain dust prevention feature.

FIG. 3 is a bottom view of a flywheel housing assembly with a drain dust prevention feature.

FIG. 4 is a schematic structural diagram of a cover plate in a flywheel housing assembly with a water-draining and dust-preventing structure.

FIG. 5 is a schematic view of the inner cross section of a box structure in a flywheel housing assembly with a water-draining and dust-preventing structure.

As shown in the figure: flywheel housing 1, inclined structure 1a, gasket 2, apron 3, box structure 3a, water drainage tank 3b, baffle 3c, bolt 4.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, 2 and 3, in an embodiment of the present invention, a flywheel housing assembly with a drainage and dust-proof structure includes a flywheel housing 1, a gasket 2, a cover plate 3 and a bolt 4, where the cover plate 3 is fixedly mounted on an inclined structure 1a inclined at the bottom of the flywheel housing 1 through the bolt 4, and the gasket 2 is disposed between the cover plate 3 and the flywheel housing 1 at a connection position of the bolt 4 and the flywheel housing 1, and an inclined gap is set up between the cover plate 3 and the flywheel housing 1 through the gasket 2, so that water entering the flywheel housing 1 can be rapidly discharged through the gap;

the flywheel housing 1 is characterized in that an inclined structure 1a is designed at the bottom, the inclined structure 1a and the flywheel housing 1 are integrally formed, the inclined angle of the inclined structure 1a at the bottom is alpha, the alpha is 20 degrees, the inclined structure 1a is rectangular and annular, the size length L1 of an outer ring is 130mm, the width B1 is 90mm, the size length L2 of an inner ring is 110mm, the width B2 is 60mm, chamfers R at four corners of the inner ring are 20mm, and threaded through holes are machined at the four corners between the inner ring and an outer ring;

the gasket 2 is an annular gasket with the thickness of 1.5mm, and the gasket 2 is fixedly arranged between the cover plate 3 and the inclined structure 1a of the flywheel shell, so that a gap with the height of 1.5mm is supported, and accumulated water can be rapidly discharged through the gap;

as shown in fig. 4, the cover plate 3 is rectangular, the size of the cover plate 3 is the same as that of the inclined structure 1a at the bottom of the flywheel housing 1, the cover plate 3 is fixedly mounted on the inclined structure 1a of the flywheel housing through bolts 4, a box-type structure 3a is welded above the cover plate 3, the size of the box-type structure 3a is matched with that of the inner ring of the inclined structure 1a at the bottom of the flywheel housing, the box-type structure 3a is long L4 ═ 110mm, wide L4 ═ 60mm, high H4 ═ 20mm, chamfers r at four corners of the box-type structure 3a ═ 20mm, and drainage grooves 3b with a height of 3mm are formed in four side faces of the box;

as shown in fig. 5, box-type structure 3a welding in apron 3's top, box-type structure 3a inner structure adopts labyrinth design scheme, four thickness 1 mm's baffle 3c cross welding are on box-type structure inner wall 3d, adjacent baffle 3c clearance 4mm, can discharge the inside ponding of bell housing smoothly, and simultaneously, to the dust that gets into from bell housing bottom drainage gap, baffle in the box-type structure can effectively block inside the dust gets into bell housing 1, the dust is blockked by baffle 3c and falls down, the dust is owing to the dead weight landing on the apron 3 of slope, it is outside finally to slide 1 bell housing along the apron 3 of slope.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention, and the following claims are therefore to be read in this light of the appended claims.

Claims

1. A flywheel housing assembly with a water-draining and dust-preventing structure comprises a flywheel housing (1), a gasket (2), a cover plate (3) and a bolt (4), and is characterized in that the cover plate (3) is fixedly arranged on an inclined structure (1a) inclined at the bottom of the flywheel housing (1) through the bolt (4), and the gasket (2) is arranged between the cover plate (3) and the flywheel housing (1) at the joint of the bolt (4) and the flywheel housing (1);

the flywheel housing (1) bottom design have inclination structure (1a), inclination structure (1a) and flywheel housing (1) integrated into one piece, inclination structure (1a) are the rectangle annular, 130mm is worth to outer ring size long L1, 90mm is worth to wide B1, 110mm is worth to inner ring size long L2, 60mm is worth to wide B2, the chamfer R of inner ring four corners department is 20mm, the four corners department between inner ring and the outer ring machine has threaded through-hole.

2. The flywheel housing assembly with the water and dust discharging structure as claimed in claim 1, wherein the inclination angle of the bottom inclined structure (1a) is α, and α is 20 °.

3. The flywheel housing assembly with the water and dust discharging structure is characterized in that the gasket (2) is an annular gasket with the thickness of 1.5mm, and the gasket (2) is fixedly arranged between the cover plate (3) and the inclined structure (1a) of the flywheel housing.

4. The flywheel housing assembly with the water and dust discharging structure is characterized in that the cover plate (3) is rectangular, the size of the cover plate (3) is the same as that of the bottom inclined structure (1a) of the flywheel housing (1), the cover plate (3) is fixedly installed on the bottom inclined structure (1a) of the flywheel housing through a bolt (4), a box-shaped structure (3a) is welded above the cover plate (3), the size of the box-shaped structure (3a) is matched with that of an inner ring of the bottom inclined structure (1a) of the flywheel housing, the box-shaped structure (3a) is long L4 ═ 110mm, the width L4 ═ 60mm, the height H4 ═ 20mm, chamfers at four corners of the box-shaped structure (3a) are 20mm, and water discharging grooves 3b with the height of 3mm are formed in four side faces of the box-shaped structure (3 a).

5. The flywheel housing assembly with the water and dust discharging structure is characterized in that the box-type structure (3a) is welded above the cover plate (3), the internal structure of the box-type structure (3a) adopts a labyrinth design scheme, four partition plates (3c) with the thickness of 1mm are welded on the inner wall (3d) of the box-type structure in a crossed mode, and the gap between every two adjacent partition plates (3c) is 4 mm.