阅读说明：本技术 一种带有限位套结构的油底壳密封垫 (Oil pan sealing gasket with limiting sleeve structure ) 是由 徐彬 汪义华 董存波 刘齐英 赵东 于 2019-12-02 设计创作，主要内容包括：本发明提供一种带有限位套结构的油底壳密封垫,包括金属钢片；所述金属钢片为方环片状结构,且金属钢片上加工有呈间隔分布的螺栓孔位；所述金属钢片全包裹在橡胶主体中,且金属钢片在螺栓孔位内配置有金属限位套,金属限位套和金属钢片间隙配合,金属钢片、橡胶主体和金属限位套三者硫化粘接成一个整体；所述橡胶主体上下两侧加工有两条周向梯形的密封筋,且橡胶主体在两条密封筋之间加工有呈间隔分布的密封连接筋,这一系列的结构,解决了发动机运行中由于抖动冲击,造成密封筋过度压缩,弹簧螺栓弹力下降,密封压力不足,导致密封垫早期损坏的问题,延长了密封垫的使用寿命,降低了发动机的渗油风险。(The invention provides an oil pan sealing gasket with a limiting sleeve structure, which comprises a metal steel sheet; the metal steel sheet is of a square ring sheet structure, and bolt hole sites distributed at intervals are processed on the metal steel sheet; the metal steel sheet is fully wrapped in the rubber main body, a metal limiting sleeve is arranged in the bolt hole position of the metal steel sheet, the metal limiting sleeve is in clearance fit with the metal steel sheet, and the metal steel sheet, the rubber main body and the metal limiting sleeve are vulcanized and bonded into a whole; the processing of both sides has two trapezoidal sealed muscle of circumference about the rubber subject, and the rubber subject processing has the sealing connection muscle that is interval distribution between two sealed muscle, and this a series of structure has solved the engine and has moved in the service because the shake strikes, causes sealed muscle excessive compression, and spring bolt elasticity descends, and sealing pressure is not enough, leads to the problem of sealed pad early damage, has prolonged the life of sealed pad, has reduced the oil impregnate risk of engine.)

1. The utility model provides an oil pan sealing gasket with spacing nested structure which characterized in that: comprises a metal steel sheet (1); the metal steel sheet (1) is of a square ring sheet structure, and bolt hole sites distributed at intervals are processed on the metal steel sheet (1); the metal steel sheet (1) is completely wrapped in the rubber main body (2), and a metal limiting sleeve (3) is arranged in a bolt hole of the metal steel sheet (1); the metal limiting sleeve (3) is in clearance fit with the metal steel sheet (1), and the metal steel sheet (1), the rubber main body (2) and the metal limiting sleeve (3) are vulcanized and bonded into a whole.

2. An oil pan gasket with a retainer ring structure according to claim 1, wherein: two circumferential trapezoidal sealing ribs (201) are processed on the upper side and the lower side of the rubber main body (2).

3. An oil pan gasket with a retainer ring structure according to claim 1, wherein: the rubber main body (2) is provided with sealing connecting ribs (202) which are distributed at intervals between the two sealing ribs (201).

4. An oil pan gasket with a retainer ring structure according to claim 1, wherein: the rubber main body (2) is provided with semi-arc metal steel sheet positioning grooves (203) which are distributed at intervals at the inner side and the outer side.

5. An oil pan gasket with a retainer ring structure according to claim 1, wherein: and a grid sealing rib is processed between the two sealing ribs (201) on the inner side of the threaded hole of the rubber main body (2).

Technical Field

The invention belongs to the field of automobile engines, and particularly relates to an oil pan sealing gasket with a limiting sleeve structure.

Background

The engine oil pan is the lower half of the crankcase, also known as the lower crankcase. The function of the device is to close the crankcase as the shell of the oil storage tank, collect and store the lubricating oil flowing back from each friction surface of the diesel engine, dissipate part of the heat and prevent the lubricating oil from being oxidized. A gasket is typically required to seal between the engine oil pan and the engine block.

The oil pan sealing gasket of present production is pure rubber sealing gasket, need assemble between engine cylinder body and the oil pan through the spring bolt that has limit structure, but long-time back of working, spring bolt elasticity descends, and sealing pressure is not enough, leads to the engine oil impregnate phenomenon often to appear, causes higher after-sales service and claim expense. The unit price of the spring bolt is higher, about 10 times of that of a common flange bolt, and the cost for assembling the spring bolt with the engine sealing gasket is more than 100 yuan.

Disclosure of Invention

In order to solve the technical problems, the invention provides an oil pan sealing gasket with a limiting sleeve structure, which aims to solve the problems that the existing oil pan sealing gasket which is similar to the existing patent structure is a pure rubber sealing gasket and needs to be assembled between an engine cylinder body and an oil pan through a common bolt, after the oil pan sealing gasket works for a long time, the elasticity of a spring bolt is reduced, the sealing pressure is insufficient, the oil leakage phenomenon of an engine often occurs, and the high after-sale service and claim cost are caused.

The invention relates to an oil pan sealing gasket with a limiting sleeve structure, which is realized by the following specific technical means:

an oil pan sealing gasket with a limiting sleeve structure comprises a metal steel sheet; the metal steel sheet is of a square ring sheet structure, and bolt hole sites distributed at intervals are processed on the metal steel sheet; the metal steel sheet is fully wrapped in the rubber main body, a metal limiting sleeve is arranged in the bolt hole position of the metal steel sheet, the metal limiting sleeve is in clearance fit with the metal steel sheet, and the metal steel sheet, the rubber main body and the metal limiting sleeve are vulcanized and bonded into a whole.

Furthermore, two circumferential trapezoid strip-shaped sealing ribs are processed on the upper side and the lower side of the rubber main body.

Furthermore, the rubber main body is provided with sealing connecting ribs which are distributed at intervals between the two sealing ribs.

Furthermore, semi-arc metal steel sheet positioning grooves distributed at intervals are formed in the inner side and the outer side of the periphery of the rubber main body.

Furthermore, a grid sealing rib is processed between the two sealing ribs on the inner side of the threaded hole of the rubber main body.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, the metal steel sheet is lined in the rubber main body, the metal limiting sleeve structure is additionally designed at the position of the threaded hole, the compression height of the sealing rib is limited when the sealing gasket is used, the compression ratio of the sealing rib is within a reasonable design range, the problems of excessive compression of the sealing rib, reduction of the elasticity of a spring bolt and insufficient sealing pressure caused by shaking impact in the operation of an engine are effectively solved, the service life of the sealing gasket is prolonged, and the oil leakage risk of the engine is reduced. Meanwhile, the sealing gasket of the structure is assembled by adopting common flange bolts, and compared with the spring bolts of the original structure, the cost is greatly reduced.

Drawings

Fig. 1 is a schematic structural view of a front plane of the present invention.

Fig. 2 is a schematic view of the partial enlarged plane structure A extracted from fig. 1.

FIG. 3 is a schematic view of the structure of the invention in section B-B taken from FIG. 1.

FIG. 4 is a schematic view of the structure of the present invention in partial section taken in the plane of section C-C from FIG. 1.

FIG. 5 is a schematic drawing of the invention in partial cross-sectional plan view taken from FIG. 1 in section D-D.

Fig. 6 is a schematic view of the assembled cross-sectional structure of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a metal steel sheet; 2. a rubber body; 201. sealing the ribs; 202. sealing the connecting ribs; 203. a metal steel sheet positioning groove; 3. a metal stop collar; 4. assembling a bolt; 5. an oil pan; 6. an engine block.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like 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 "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.