CN218408197U

CN218408197U - Bearing cap assembly

Info

Publication number: CN218408197U
Application number: CN202221969706.5U
Authority: CN
Inventors: 潘能琴; 兰州; 尹子明
Original assignee: Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2023-01-31
Anticipated expiration: 2032-07-28

Abstract

The utility model relates to the field of cylinder covers, in particular to a bearing cover assembly, which comprises a lower bearing cover, wherein the lower bearing cover comprises a lower cover body, a lower thrust block is arranged on the lower cover body, a lower cover bearing hole is also arranged on the lower bearing cover, and the lower cover bearing hole penetrates through the lower cover body and is arranged with the lower thrust block; an oil storage tank is arranged on the lower thrust block; the oil storage tank is communicated with the lower cover bearing hole; the oil storage tanks comprise a first oil storage tank and a second oil storage tank which are distributed at intervals; the utility model discloses a bearing cap assembly, the utility model changes the structure of the traditional bearing cap, and through arranging an oil storage tank on the lower cover of the bearing cap, the oil storage tank can be used for subsequent work, and the lubrication in the oil storage tank leaks through the matching clearance between the camshaft journal and the bearing hole of the bearing cap; make lubricated camshaft journal of lubricating oil and bearing cap laminating department to prevent that both laminating departments from taking place dry friction, and then reduced the wearing and tearing between bearing cap and the camshaft.

Description

Bearing cap assembly

Technical Field

The utility model relates to a cylinder head field is a bearing cap assembly particularly.

Background

Associated parts are assembled in an inner cavity of the engine, and abrasion is inevitable due to accumulated dimensional tolerance of the parts, combustion flutter caused by high-speed operation of the whole engine and mutual contact of the associated parts.

In order to improve the product quality, reducing and reducing the wear of parts is an important objective of the design scheme of the parts.

The crankshaft component drives the air inlet and outlet camshaft to rotate clockwise through the chain, the axial accumulated tolerance of the sizes of parts and the combustion flutter of the whole machine in high-speed operation are arranged at the center of the crankshaft sprocket and the center of the camshaft sprocket, and the camshaft can generate front displacement or back displacement play through the rotation direction.

The lower cover of the bearing cover of the cylinder cover is provided with a thrust stop (thrust block), a certain axial clearance of the camshaft is formed after the thrust stop (thrust block) is assembled with the thrust groove of the camshaft, and the camshaft is allowed to axially move within a certain size range when the whole machine runs.

The larger definition of the axial clearance can cause NVH abnormal sound and influence the comfort of customers; the smaller definition may cause wear of the bearing cap thrust surface of the cylinder head. In order not to affect customer comfort, the reduction of cylinder head bearing cap thrust surface wear needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can reduce bearing cap assembly of cylinder head bearing cap thrust surface wearing and tearing.

In order to realize the purpose, the utility model discloses a technical scheme be:

a bearing cover assembly comprises a bearing cover lower cover, wherein the bearing cover lower cover comprises a lower cover body, a lower thrust block is arranged on the lower cover body, a lower cover bearing hole is also formed in the bearing cover lower cover, and the lower cover bearing hole penetrates through the lower cover body and the lower thrust block; an oil storage tank is arranged on the lower thrust block; the oil storage tank is communicated with the lower cover bearing hole; the oil storage tank comprises a first oil storage tank and a second oil storage tank which are distributed at intervals.

The lower thrust block and the lower cover body are of an integrated structure.

The lower thrust block is flush with the upper end surface of the lower cover body; the first oil storage grooves are distributed on the upper end face of the lower thrust block; the second oil storage groove is distributed in the middle area of the lower thrust block.

The first oil storage groove is distributed at the end part of the lower thrust block, and the second oil storage groove is distributed at one side of the lower thrust block, which is far away from the first oil storage groove; and the second oil storage groove and the end face of the lower thrust block are arranged at intervals.

Both sides of the lower cover body are provided with lower thrust blocks, and each lower thrust block is provided with an oil storage tank.

The side surfaces of the first oil storage groove and the second oil storage groove are communicated with the outer side of the thrust block.

The bearing cover assembly comprises a bearing cover upper cover, the bearing cover upper cover comprises an upper cover body, an upper push stop block is arranged on the upper cover body, an upper cover bearing hole is also formed in the bearing cover upper cover, and the upper cover bearing hole penetrates through the upper cover body and the upper push stop block; the thickness of the lower thrust block is larger than that of the upper thrust block.

And the two sides of the upper cover body are respectively provided with an upper thrust block, and each lower thrust block corresponds to one upper thrust block.

The utility model has the advantages of:

the utility model discloses a bearing cap assembly, the utility model changes the structure of the traditional bearing cap, and through arranging an oil storage tank on the lower cover of the bearing cap, the oil storage tank can be used for subsequent work, and the lubrication in the oil storage tank leaks through the matching clearance between the camshaft journal and the bearing hole of the bearing cap; the joint of the camshaft journal and the bearing cover is lubricated by the lubricating oil in the oil storage tank, so that dry friction is prevented from occurring at the joint of the camshaft journal and the bearing cover, and abrasion between the bearing cover and the camshaft is reduced.

Drawings

The contents of the various figures of the specification and the labels in the figures are briefly described as follows:

FIG. 1 is a schematic view of a first bearing cap and camshaft assembly

FIG. 2 is an exploded view of the first bearing cap and camshaft assembly

FIG. 3 schematic view of the lower cover-front end face of the first bearing cover

FIG. 4 is a schematic view of the lower cover-rear end face of the first bearing cover

The labels in the above figures are:

1. bearing cap lower cover, 11, lower thrust block, 12, lower cover bearing hole, 13, oil storage tank, 131, first oil storage tank, 132, second oil storage tank, 2, bearing cap upper cover, 21, upper thrust block, 22, upper cover bearing hole, 3 and camshaft.

Detailed Description

The following description of the preferred embodiments of the present invention will be made in further detail with reference to the accompanying drawings.

A bearing cap assembly comprises a bearing cap lower cover 1, wherein the bearing cap lower cover 1 comprises a lower cover body, a lower thrust block 11 is arranged on the lower cover body, a lower cover bearing hole 12 is also formed in the bearing cap lower cover 1, and the lower cover bearing hole 12 penetrates through the lower cover body and the lower thrust block 11; an oil storage tank 13 is arranged on the lower thrust block 11; the oil storage tank 13 is communicated with the lower cover bearing hole 12; the oil storage tank 13 comprises a first oil storage tank 131 and a second oil storage tank 132, and the first oil storage tank 131 and the second oil storage tank 132 are distributed at intervals; the utility model discloses a bearing cap assembly, the utility model changes the traditional bearing cap structure, and through arranging an oil storage tank 13 on the lower cover 1 of the bearing cap, the lubricating oil in the oil storage tank 13 can leak through the matching clearance between the shaft neck of the camshaft 3 and the bearing cap bearing hole during the subsequent work; the shaft neck of the camshaft 3 is lubricated with the joint of the bearing cover by the lubricating oil in the oil storage tank 13, so that dry friction is prevented from occurring at the joint of the bearing cover and the camshaft 3, and abrasion between the bearing cover and the camshaft 3 is reduced.

The utility model discloses a bearing cap assembly, mainly include bearing cap lower cover 1, bearing cap lower cover 1 is the main bearing structure of bearing cap, in addition, in the utility model, bearing cap lower cover 1 includes the lower cover body, and the lower cover body is the major structure of bearing cap lower cover 1, and the setting of lower cover bearing hole 12 has made things convenient for the arrangement of camshaft 3 to lay; in addition, the lower cover body of the utility model is provided with a lower thrust block 11, and the lower thrust block 11 plays a good role in limiting; meanwhile, the subsequent oil storage tank 13 is convenient to arrange and place; in addition, in the utility model, an oil storage tank 13 is arranged on the lower thrust block 11; the oil storage tank 13 is communicated with the lower cover bearing hole 12; the oil storage tank 13 comprises a first oil storage tank 131 and a second oil storage tank 132, and the first oil storage tank 131 and the second oil storage tank 132 are distributed at intervals; the utility model discloses a cooperation of first oil storage tank 131 and second oil storage tank 132 is used, can realize the lubrication action of 3 both sides of camshaft, optimizes the lubricated effect between camshaft 3 and the bearing cap.

Furthermore, in the present invention, the lower thrust block 11 and the lower cover body are an integral structure; the utility model discloses thrust block 11 is the integral type design with lower lid and go up ejector pad 21 and last lid down, and such setting has made things convenient for the production of bearing cap lower cover 1 and bearing cap upper cover 2, and what call in this text is thrust block 11 down, lower lid, go up ejector pad 21 and go up the lid and just for stating the convenience.

Furthermore, in the utility model, the lower thrust block 11 is flush with the upper end surface of the lower cover body; the first oil storage grooves 131 are distributed on the upper end face of the lower thrust block 11; the second oil storage groove 132 is distributed in the middle area of the lower thrust block 11; through the above design, the utility model is mainly used in order to cooperate with the rotation of the camshaft 3, in the utility model, the camshaft 3 rotates clockwise, the lubricating oil outflow of the first oil storage tank 131 can lubricate the camshaft 3, but when the camshaft 3 rotates continuously, the lubricating oil consumption is large, the lubricating oil outflow from the first oil storage tank 131 can not realize the lubrication corresponding to the whole-circle operation of the camshaft 3, so the other side of the lower thrust block 11 is provided with the second oil storage tank 132, thereby the camshaft 3 can be lubricated continuously after rotating for a whole circle; in addition, as a greater optimization, in the present invention, the first oil storage groove 131 is distributed at the end of the lower thrust block 11, and the second oil storage groove 132 is distributed at the side of the lower thrust block 11 away from the first oil storage groove 131; the second oil storage groove 132 is arranged at an interval with the end face of the lower thrust block 11; that is, the first oil reservoir 131 is distributed at the upper end face of the lower thrust block 11, the second oil reservoir 132 is located at the inner wall of the lower bearing hole 12, and the second oil reservoir 132 is not located right below the center point of the lower bearing hole 12, but is eccentrically located, as shown in the drawings specifically; with this arrangement, a continuous lubricating operation of the camshaft 3 for a full revolution can be achieved.

Furthermore, in the utility model, both sides of the lower cover body are provided with lower thrust blocks 11, and each lower thrust block 11 is provided with an oil storage tank 13; with this arrangement, the thrust surfaces of the camshaft 3 on both sides of the lower cover body can be lubricated.

Furthermore, in the present invention, the side surfaces of the first oil storage tank 131 and the second oil storage tank 132 are communicated with the outside of the thrust block; by the arrangement, the lubricating oil can flow out conveniently.

Further, in the present invention, the bearing cap assembly includes a bearing cap upper cover 2, the bearing cap upper cover 2 includes an upper cover body, the upper cover body is provided with an upper stop block 21, the bearing cap upper cover 2 is further provided with an upper cover bearing hole 22, and the upper cover bearing hole 22 penetrates through the upper cover body and the upper stop block 21; the thickness of the lower thrust block 11 is greater than that of the upper thrust block 21; due to the arrangement, the thickness of the rear end face of the upper cover 2 of the bearing cover is designed to be smaller than that of the rear end face of the lower cover 1 of the bearing cover, and the smaller height difference can be determined according to the acceptable standard of the wear limit value of the thrust face; when the abrasion of the rear thrust surface of the lower cover is close to the limit value, the rear end surface of the upper cover can participate in the parallel and level of the rear end surface of the lower cover to form a circular surface, the rear thrust bearing area of the bearing cover is increased, and the further abrasion of the rear thrust surface of the lower cover 1 of the bearing cover is prevented.

Furthermore, in the present invention, both sides of the upper cover body are provided with an upper thrust block 21, and each lower thrust block 11 is provided with an upper thrust block 21 correspondingly; due to the arrangement, the butt joint and the attachment between the bearing cover upper cover 2 and the bearing cover lower cover 1 are facilitated, and the subsequent assembly and positioning of the bearing cover upper cover 2 and the bearing cover lower cover 1 are facilitated.

Concretely;

the utility model discloses a bearing cap assembly, which mainly comprises a bearing cap upper cover 2 and a bearing cap lower cover 1; meanwhile, the upper bearing cover 2 is provided with an upper thrust block 21, the lower bearing cover 1 is provided with a lower thrust block 11, the lower thrust block 11 is provided with an oil storage groove 13, a certain axial gap of the camshaft 3 is formed after the lower bearing cover 1 and the thrust groove of the camshaft 3 are assembled, and the camshaft 3 can generate axial movement when the whole machine operates; therefore, the lower thrust block 11 of bearing cap lower cover 1 and the thrust groove of camshaft 3 can inevitably produce the contact of each other, can cause the thrust surface looks mutual rotation of camshaft 3 and lower thrust block 11 lateral surface and take place wearing and tearing, in order to reduce the wearing and tearing of the thrust block of bearing cap lower cover, so the utility model designs an above-mentioned oil storage tank 13, through the setting of oil storage tank 13, can be so that lubricating oil flows camshaft 3 and lower thrust block 11 butt joint department to play the lubrication action.

In addition, the utility model discloses well lower thrust block 11 is equipped with oil storage tank 13, and oil storage tank 13 includes first oil storage tank 131 and second oil storage tank 132, and oil storage tank 13 cast moulding.

When viewed from the front end of the engine, one part of the oil storage tank 13 is designed at the position of an included angle between the right side of a bearing hole of the lower cover 1 of the bearing cover and the upper plane, and the front and rear positions of the feeding and discharging and thrust surfaces are the same; the other part is designed at the left side of the lower cover 1 of the bearing cover, and the front and back positions of the feeding and discharging and thrust surfaces are the same as shown in the attached drawing;

additionally, the utility model discloses well oil storage tank 13 oil storage is filled through 3 journals of camshaft and bearing cap bearing hole fit clearance seepage lubricating oil.

When the axial float of the thrust surface of the camshaft 3 contacts with the front and back thrust surfaces of the first bearing cover lower cover 1, the lubricating oil in the oil storage groove 13 lubricates the thrust surface, so that the dry friction of the thrust surface is prevented, and the abrasion of the front and back thrust surfaces of the first bearing cover lower cover 1 is reduced.

Crankshaft component advances exhaust camshaft 3 clockwise running through chain drive, and displacement drunkenness probability is big before camshaft 3 produces through clockwise rotation direction the utility model discloses well upper thrust block 21 designs into the structure that thickness is different with lower thrust block 11 when the design, also makes bearing cap upper cover 2 and bearing cap lower cover 1 front and back terminal surface design difference in height promptly.

That is, the thickness of the upper thrust block 21 is required to be smaller than that of the lower thrust block 11, and the smaller height difference of the upper thrust block 21 can be determined according to the acceptable standard of the wear limit value of the thrust surface; when the abrasion of the rear thrust surface of the lower cover is close to the limit value, the rear end surface of the upper cover can participate in the parallel and level of the rear end surface of the lower cover to form a circular surface, the rear thrust bearing area of the bearing cover is increased, and the further abrasion of the rear thrust surface of the lower cover 1 of the bearing cover is prevented.

As shown in the figure, an air inlet camshaft 3 and an exhaust camshaft 3 are respectively assembled on a bearing cover lower cover 1, then a bearing cover upper cover 2 and the bearing cover lower cover 1 are assembled together, and the assembly of the first bearing cover upper cover, the first bearing cover lower cover and the air inlet and exhaust camshaft 3 is completed; the thrust surface is positioned by adopting a first bearing cover lower cover 1.

As shown in the figure, two oil storage tanks 13 are respectively designed on the front thrust block and the rear thrust block of the lower bearing cover 1, and when viewed from the front end of the engine, one oil storage tank 13 is designed at the included angle position between the right side of the bearing hole of the lower bearing cover 1 and the upper plane, and the front position and the rear position of the thrust plane are the same; the other part is designed at the left side position of the lower cover 1 of the bearing cover, and the front and back positions of the feeding and discharging and thrust surfaces are the same.

The oil storage tank 13 stores oil and is filled with lubricating oil through the matching clearance between the shaft neck of the camshaft 3 and the bearing hole of the bearing cover, when the thrust surface of the camshaft 3 axially moves to be in contact with the front thrust surface and the rear thrust surface of the first bearing cover lower cover 1, the lubricating oil in the oil storage tank 13 lubricates the thrust surface, the thrust surface is prevented from dry friction, and the abrasion of the front thrust surface and the rear thrust surface of the first bearing cover lower cover 1 is reduced.

Obviously the specific implementation of the present invention is not limited by the above-mentioned manner, and various insubstantial improvements made by the method concept and technical solution of the present invention are all within the protection scope of the present invention.

Claims

1. A bearing cap assembly is characterized by comprising a lower bearing cap body, wherein the lower bearing cap body comprises a lower cap body, a lower thrust block is arranged on the lower cap body, a lower cap bearing hole is also formed in the lower bearing cap body, and the lower cap bearing hole penetrates through the lower cap body and the lower thrust block; an oil storage tank is arranged on the lower thrust block; the oil storage tank is communicated with the lower cover bearing hole; the oil storage tank comprises a first oil storage tank and a second oil storage tank which are distributed at intervals.

2. The bearing cap assembly of claim 1, wherein the lower thrust block and the lower cap body are of a unitary construction.

3. The bearing cap assembly of claim 1, wherein the lower thrust block is flush with the upper end surface of the lower cap body; the first oil storage groove is distributed on the upper end face of the lower thrust block; the second oil storage groove is distributed in the middle area of the lower thrust block.

4. The bearing cap assembly as claimed in claim 3, wherein the first oil storage groove is distributed at the end of the lower thrust block, and the second oil storage groove is distributed at the side of the lower thrust block far away from the first oil storage groove; the second oil storage groove and the end face of the lower thrust block are arranged at intervals.

5. The bearing cap assembly as claimed in claim 1, wherein the lower cap body is provided with lower thrust blocks on both sides thereof, and each lower thrust block is provided with an oil storage groove.

6. The bearing cap assembly as claimed in claim 1, wherein the first and second oil reservoirs are laterally communicated with the outside of the thrust block.

7. The bearing cap assembly of claim 1, wherein the bearing cap assembly comprises a bearing cap upper cap, the bearing cap upper cap comprises an upper cap body, the upper cap body is provided with an upper thrust block, the bearing cap upper cap is further provided with an upper cap bearing hole, and the upper cap bearing hole penetrates through the upper cap body and the upper thrust block; the thickness of the lower thrust block is larger than that of the upper thrust block.

8. The bearing cap assembly as claimed in claim 7, wherein the upper cap body is provided with upper thrust blocks on two sides, and each lower thrust block corresponds to one upper thrust block.