CN210948929U

CN210948929U - Main bearing cap reinforcing structure

Info

Publication number: CN210948929U
Application number: CN201921326810.0U
Authority: CN
Inventors: 李振东; 宣奇武
Original assignee: IAT Automobile Technology Co Ltd
Current assignee: IAT Automobile Technology Co Ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-07-07
Anticipated expiration: 2029-08-16

Abstract

The utility model relates to a main bearing cap additional strengthening belongs to the technical field of engine. The utility model discloses a main bearing cap reinforcing structure, which comprises a first main bearing cap, a second main bearing cap, a third main bearing cap, a fourth main bearing cap, a fifth main bearing cap and a reinforcing plate, wherein the first main bearing cap, the second main bearing cap and the fifth main bearing cap are arranged on a cylinder body; the first main bearing cover and the fifth main bearing cover are installed on the cylinder body through first main bearing cover bolts, and the second main bearing cover, the fourth main bearing cover and the fourth main bearing cover are installed on the cylinder body through second main bearing cover bolts; the reinforcing plate comprises a reinforcing plate main body and a connecting arm, a sleeve is arranged at the lower end of the connecting arm, and the reinforcing plate is fixedly connected with a second main bearing cover bolt on a second main bearing cover to a fourth main bearing cover through the sleeve. The utility model discloses a main bearing cap additional strengthening has improved the intensity and the rigidity of main shaft cover, has improved the reliability and the NVH of complete machine; the reinforcing plate is an independent part, and is simple to process and good in disassembly and assembly.

Description

Main bearing cap reinforcing structure

Technical Field

The utility model relates to a technical field of engine, more specifically say, the utility model relates to a main bearing cap additional strengthening.

Background

Fig. 1 shows a main bearing cap structure in the prior art, and the main bearing caps are designed independently of each other, are not connected to each other, and are not connected to a cylinder block. With the continuous improvement of the performance of the engine, the structural strength and rigidity cannot meet the requirements, and the reliability and NVH of the engine are adversely affected.

In fig. 1: 1-a first main bearing cover, 2-a second main bearing cover, 3-a third main bearing cover, 4-a fourth main bearing cover, 5-a fifth main bearing cover, 6-a cylinder body and 7-a main bearing cover bolt.

SUMMERY OF THE UTILITY MODEL

For the above-mentioned technical problem who exists among the solution prior art, the utility model aims at providing a main bearing cap additional strengthening.

The utility model discloses a main bearing cap reinforcing structure, including the first main bearing cap, the second main bearing cap, the third main bearing cap, the fourth main bearing cap, the fifth main bearing cap and the reinforcing plate that set up on the cylinder block; the second main bearing cap, the third main bearing cap and the fourth main bearing cap are arranged between the first main bearing cap and the fifth main bearing cap, the first main bearing cap and the fifth main bearing cap are installed on the cylinder block through first main bearing cap bolts, and the second main bearing cap, the third main bearing cap and the fourth main bearing cap are installed on the cylinder block through second main bearing cap bolts; the reinforcing plate comprises a reinforcing plate main body and a connecting arm connected with the reinforcing plate main body, a sleeve matched with a second main bearing cap bolt is arranged at the lower end of the connecting arm, and the reinforcing plate is fixedly connected with the second main bearing cap bolt on the second main bearing cap, the third main bearing cap and the fourth main bearing cap through the sleeve.

The outer wall of the second main bearing cap bolt is provided with an external thread, the sleeve is internally provided with an internal thread, and the second main bearing cap bolt and the sleeve are connected and fixed in a matching mode through the external thread and the internal thread.

Compared with the prior art, the utility model discloses a main bearing cap additional strengthening has following beneficial effect:

(1) the strength and the rigidity of the whole engine are improved;

(2) the reliability of the operation of the engine is improved;

(3) and the NVH of the engine is improved.

Drawings

FIG. 1 is a schematic illustration of a prior art main bearing cap configuration.

Fig. 2 is a schematic view of the main bearing cap reinforcing structure of the present invention.

Fig. 3 is a top view of a reinforcing plate in the reinforcing structure of the present invention.

Fig. 4 is a front view of a reinforcing plate in the reinforcing structure of the present invention.

Detailed Description

The main bearing cap reinforcing structure of the present invention will be further described below with reference to specific embodiments to help those skilled in the art to understand the concept and technical solution of the present invention more completely, accurately and deeply.

Example 1

As shown in fig. 2 to 4, the main bearing cap reinforcing structure of the present embodiment includes a first main bearing cap 10, a second main bearing cap 20, a third main bearing cap 30, a fourth main bearing cap 40 and a fifth main bearing cap 50 which are provided on a cylinder block 60, and the second main bearing cap 20, the third main bearing cap 30 and the fourth main bearing cap 40 are provided between the first main bearing cap 10 and the fifth main bearing cap 50, and the inventors found that the second main bearing 20, the third main bearing cap 30 and the fourth main bearing cap 40 are subjected to a large force in use, and the strength and rigidity are not sufficient to meet the use requirements, thereby adversely affecting the reliability and NVH performance of the engine. For this reason, the reinforcing plate 90 is added to the main bearing cap reinforcing structure of the present embodiment. In the present embodiment, the first main bearing cap 10 and the fifth main bearing cap 50 are mounted to the cylinder block 60 by a first main bearing cap bolt 70, and the second main bearing cap 20, the third main bearing cap 30 and the fourth main bearing cap 40 are mounted to the cylinder block 60 by a second main bearing cap bolt 80. Reinforcing plate 90 can adopt cast iron processing to form, and it includes reinforcing plate main part 91 to and the linking arm 92 of being connected with reinforcing plate main part 91, the lower extreme of linking arm 92 is provided with the sleeve pipe 93 with second main bearing cap bolt 80 complex, reinforcing plate 90 through the sleeve pipe 93 with second main bearing cap bolt 80 fixed connection on second main bearing cap 20, third main bearing cap 30 and the fourth main bearing cap 40. For example, the outer wall of the second main bearing cap bolt 80 is provided with an external thread, the sleeve 93 is provided with an internal thread, and the second main bearing cap bolt 80 and the sleeve 93 are fixed by the external thread and the internal thread.

The utility model discloses a main bearing cap additional strengthening has improved the intensity and the rigidity of main shaft cover, has improved the reliability and the NVH of complete machine; the reinforcing plate is an independent part, and is simple to process and good in disassembly and assembly. The utility model discloses an additional strengthening can be applied to the engine of 4 jar models.

For those skilled in the art, the specific embodiments are only exemplary descriptions of the present invention, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements are all within the protection scope of the present invention as long as the technical solution of the present invention is adopted.

Claims

1. A main bearing cap reinforcing structure is characterized by comprising a first main bearing cap, a second main bearing cap, a third main bearing cap, a fourth main bearing cap, a fifth main bearing cap and a reinforcing plate which are arranged on a cylinder body; the second main bearing cap, the third main bearing cap and the fourth main bearing cap are arranged between the first main bearing cap and the fifth main bearing cap, the first main bearing cap and the fifth main bearing cap are installed on the cylinder block through first main bearing cap bolts, and the second main bearing cap, the third main bearing cap and the fourth main bearing cap are installed on the cylinder block through second main bearing cap bolts; the reinforcing plate comprises a reinforcing plate main body and a connecting arm connected with the reinforcing plate main body, a sleeve matched with a second main bearing cap bolt is arranged at the lower end of the connecting arm, and the reinforcing plate is fixedly connected with the second main bearing cap bolt on the second main bearing cap, the third main bearing cap and the fourth main bearing cap through the sleeve.

2. The main bearing cap reinforcement structure of claim 1, wherein: the outer wall of the second main bearing cap bolt is provided with an external thread, the sleeve is internally provided with an internal thread, and the second main bearing cap bolt and the sleeve are connected and fixed in a matching mode through the external thread and the internal thread.