CN209340049U

CN209340049U - Chain chamber cover

Info

Publication number: CN209340049U
Application number: CN201821997756.8U
Authority: CN
Inventors: 卢德平; 丛延勋; 曲美兰; 李金成
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2018-11-30
Filing date: 2018-11-30
Publication date: 2019-09-03
Anticipated expiration: 2028-11-30

Abstract

The utility model discloses a kind of chain chamber covers comprising upper cover and lower the cover；The upper cover is fixed on cylinder cap and valve cover covers, for sealing cylinder cap and valve chamber cover；The lower the cover is fixed on cylinder body, and the cylinder cap is fixed in the upper end of the lower the cover, and the lower end of the lower the cover is fixed on oil sump, and the lower the cover, cylinder cap and oil sump form sealing space.The chain chamber cover of the utility model evades chain chamber cover offset by separate structure, evades poor sealing by inner chamfer glue groove, and then has evaded three faying face permeability risks, and compact-sized, using convenient.

Description

Chain chamber cover

Technical field

The utility model relates to a kind of novel points evaded three faying face permeability risks and hold plastic structure with inner chamfer simultaneously Body formula chain chamber cover structure, belongs to engine parts structure design field.

Background technique

Currently, it is exactly chain chamber cover covering gray iron that domestic chain chamber cover, which designs main Form Characteristic, The advantages of integral type the cover is sealed by increasing the design of groove profile glue groove to realize, this design is integral type the cover integrated level High, assembly and field management are flexible, but this integral type the cover is at three faying faces of gray iron and chain chamber cover, by It will lead to cylinder block and head working condition deflection difference in cylinder block and head thermal expansion coefficient difference, deflection is different and then in chain Room the cover mounting surface forms offset, and sealing surface not can guarantee in a plane, and the larger sealant of offset can not make up, and then lead Cause seal failure；The groove profile glue groove structure that previous chain chamber cover uses simultaneously is easy to cause sealing glue solidifying bad, seals Failure, three faying face oil leakage problem of gasoline engine is that major main engine plants are difficult to solve the problems, such as and control at present, and oil leakage problem is also straight Connect the superiority and inferiority for influencing the quality of engine；Especially during engine actual road test, often there is three faying face of gasoline engine The problem of permeability.

Utility model content

The utility model aim is to provide a kind of chain chamber cover, and which solve above-mentioned technical problems.

The utility model solve technical problem adopt the following technical scheme that a kind of chain chamber cover comprising upper cover and Lower the cover；

The upper cover is fixed on cylinder cap and valve cover covers, for sealing cylinder cap and valve chamber cover；The lower cover Lid is fixed on cylinder body, and the cylinder cap is fixed in the upper end of the lower the cover, and oily bottom is fixed in the lower end of the lower the cover On shell, the lower the cover, cylinder cap and oil sump form sealing space.

Optionally, the upper cover and the cylinder and the inward flange of valve chamber cover contact surface form chamfering.

Optionally, the inward flange that the lower the cover is contacted with the cylinder body forms chamfering.

The utility model has the following beneficial effects: the chain chamber cover of the utility model evades chain by separate structure Room the cover offset evades poor sealing by inner chamfer glue groove, and then has evaded three faying face permeability risks, and structure is tight It gathers, using convenient.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the groove profile glue groove of the chain chamber cover of the prior art；

Fig. 2 is the schematic diagram of the upper cover of the chain chamber cover of the utility model；

Fig. 3 is the schematic diagram of the lower the cover of the chain chamber cover of the utility model；

Fig. 4 is the structural schematic diagram of the inner chamfer of the chain chamber cover of the utility model；

Fig. 5 is the schematic view of the mounting position of the chain chamber cover of the utility model；

Fig. 6 is the schematic view of the mounting position of the chain chamber cover of the utility model；

The mark in the figure shows: 1- upper cover；The cover under 2-；3- inner chamfer；4- valve chamber cover；5- cylinder cap；6- cylinder body； 7- oil sump.

Specific embodiment

The technical solution of the utility model is further elaborated below with reference to examples and drawings.

Embodiment 1

Present embodiments provide a kind of chain chamber cover, including upper cover 1 and lower the cover 2；

In the present embodiment, the upper cover and the cylinder and the inward flange of valve chamber cover contact surface form chamfering, Also, being all made of for the inward flange formation chamfering that the lower the cover is contacted with the cylinder body, i.e., the described upper cover and lower the cover is interior Chamfering structure, compared to groove profile glue groove structure before, sealing glue solidifying speed is fast, and sealing effect is good.

The chain chamber cover of the utility model evades chain chamber cover offset by separate structure, passes through inner chamfer glue groove Evade poor sealing, and then evaded three faying face permeability risks, and compact-sized, using convenient.

One chain chamber cover is split as upper cover and lower the cover by the chain chamber cover of the utility model, and upper cover is close Seal cylinder cap and valve chamber cover two parts with material, lower the cover sealed cylinder block, evaded two materials of sealing it is different zero Part can generate the risk that offset sealant can not make up, while proposing inner chamfer and holding the groove profile appearance that plastic structure replaces previous product Glue groove structure guarantees that sealing glue solidifying is good, and sealing effect is good.

The sequencing of above embodiments is not only for ease of description, represent the advantages or disadvantages of the embodiments.

Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations； Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc. With replacement；And these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution The spirit and scope of scheme.

Claims

1. a kind of chain chamber cover, which is characterized in that including upper cover and lower the cover；

The upper cover is fixed on cylinder cap and valve cover covers, for sealing cylinder cap and valve chamber cover；The lower the cover is solid It being scheduled on cylinder body, and the cylinder cap is fixed in the upper end of the lower the cover, the lower end of the lower the cover is fixed on oil sump, The lower the cover, cylinder cap and oil sump form sealing space.

2. chain chamber cover according to claim 1, which is characterized in that the upper cover connects with cylinder and valve chamber cover The inward flange for touching surface forms chamfering.

3. chain chamber cover according to claim 2, which is characterized in that the inner edge that the lower the cover is contacted with the cylinder body Edge forms chamfering.