Frame type mute main bearing cover

Abstract

The utility model relates to a frame type silent main bearing cap, which comprises a frame body and a plurality of bearing caps, the bearing caps are integrally formed on the frame body, each bearing cap is integrally formed on the frame body through casting, the integral rigidity is very excellent, after the rigidity is improved, an obvious effect on NVH (Noise Vibration and Harshness) is achieved, and the noise of an engine is reduced. And higher and higher use requirements of users are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the main bearing cover field especially is related to a frame type mute main bearing cover. BACKGROUND

[0002] The in-line four-cylinder engine usually needs five main bearing covers, which correspond to the main bearings on the crankshaft to ensure the stable support of the crankshaft. However, due to the multiple main bearing covers of a single engine, the material is increased, which increases the management difficulty; and each shaft cover is very similar in appearance, which has the risk of assembly error in batch assembly, there is no rigid connection between the bearing covers, the overall rigidity is insufficient, and the NVH is poor.

[0003] Therefore, a frame type mute main bearing cover makes the whole bearing cover modal high and solves the NVH problem. SUMMARY

[0004] Therefore, the utility model provides a frame type mute main bearing cover, which makes the whole bearing cover modal high and solves the NVH problem.

[0005] The utility model provides a frame type mute main bearing cover adopts the following technical scheme:

[0006] A frame type mute main bearing cover comprises a frame body and a plurality of bearing covers, and the bearing covers are integrally formed on the frame body.

[0007] Optionally, the frame body is integrally formed with an avoiding frame, and an avoiding groove is formed between the avoiding frame and the frame body.

[0008] Optionally, the avoiding frame is arranged between two adjacent bearing covers.

[0009] Optionally, a positioning pin hole is formed in the bearing cover.

[0010] Optionally, the bearing cover is provided with five bearing covers along the axial direction of the frame body.

[0011] Optionally, the longitudinal section of the bearing cover is approximately U-shaped.

[0012] Optionally, the avoiding frame is arc-shaped in cross section.

[0013] Optionally, the positioning pin hole is arranged in the bearing cover on the two sides of the frame body.

[0014] In summary, the utility model has at least one of the following beneficial technical effects: the bearing covers are integrally formed on the frame body, the overall rigidity is very good, the rigidity is improved, the NVH is significantly improved, the engine noise is reduced, and the use requirements of users are met. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of the embodiment of the utility model.

[0016] Mark explanation: 1, frame body, 2, main bearing cover, 3, avoiding frame, 4, positioning pin hole. Specific implementation

[0017] The following will be combined with the attached Figure 1 The utility model is further explained in detail.

[0018] The utility model embodiment discloses a frame type mute main bearing cover.

[0019] Refer to Figure 1 A frame type mute main bearing cover includes frame body 1 and multiple bearing covers, and the bearing cover is integrally formed on the frame body 1, and each bearing cover is integrally casted on the frame body 1, the overall rigidity is very excellent, the rigidity is improved, and the NVH has remarkable effect, and the engine noise is reduced to meet the increasingly high use requirement of users.

[0020] Multiple bearing covers are arranged on the frame body 1 in the axial direction. Specifically, five bearing covers are arranged on the frame body 1 in the axial direction. The bearing cover corresponds to the main journal on the crankshaft one by one to form a stable support structure. The bearing cover is used for supporting and sealing to ensure that the crankshaft is not damaged due to friction or wear when running at high speed.

[0021] The avoiding frame 3 is integrally formed on the frame body 1, and the avoiding frame 3 is arranged between the adjacent two bearing covers. The cross section of the avoiding frame 3 is arc-shaped, and the arc-shaped design can effectively disperse stress, enhance the carrying capacity of the frame body 1, and improve the overall impact resistance.

[0022] The avoiding groove is formed between the avoiding frame 3 and the frame body 1. In the embodiment, the avoiding space is provided for the crank to prevent interference during operation or assembly. The avoiding frame 3 is integrally formed with the frame body 1 to ensure the overall stability of the structure,

[0023] The positioning pin hole 4 is arranged on the bearing cover. The positioning pin hole 4 on the bearing cover is used for installing the positioning pin to ensure the accurate assembly of the bearing. The combination of the positioning pin hole 4 and the positioning pin can effectively prevent the bearing cover from being displaced due to vibration, ensure the normal operation of the bearing and the safety of the machine, and the worker can quickly and accurately complete the assembly of the bearing cover through the positioning pin hole 4, reduce the adjustment time, and improve the work efficiency. The positioning pin hole 4 is located on the bearing cover on both sides of the frame body 1, and each bearing cover needs to be machined in the prior art, and there are 10 holes in total, and the utility model only needs to be provided with two, reduces the machining sequence, and saves the machining cost.

[0024] The longitudinal section of the bearing cover is approximately U-shaped, the U-shaped design can effectively disperse external force, enhance the bearing capacity of the bearing cover, and ensure the stability of the bearing cover under complex working conditions.

[0025] The frame type bearing cover has excellent strength and rigidity, high modal of the whole bearing cover, solved NVH problem, reduced number of engine assembly parts, and reduced management cost.

[0026] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A framed silent main bearing cover, characterized by: The frame body and a plurality of bearing covers are integrated; the frame body is integrally formed with an avoiding frame; and the avoiding frame and the frame body form an avoiding groove.

2. The framed silent main bearing cover according to claim 1, characterized in that: The avoiding frame is arranged between two adjacent bearing covers.

3. The framed silent main bearing cover according to claim 1, characterized in that: A positioning pin hole is arranged on the bearing cover.

4. The framed silent main bearing cover of claim 1, wherein: Five bearing covers are arranged along the axial direction of the frame body.

5. The framed silent main bearing cover according to claim 4, characterized in that: The longitudinal section of the bearing cover is approximately U-shaped.

6. The framed silent main bearing cover of claim 2, wherein: The cross section of the avoiding frame is arc-shaped.

7. The framed silent main bearing cover of claim 3, wherein: The positioning pin hole is arranged on the bearing cover on both sides of the frame body.

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