CN215860478U

CN215860478U - Three-point supporting structure of engine

Info

Publication number: CN215860478U
Application number: CN202121735408.5U
Authority: CN
Inventors: 代林合; 谭贵荣; 陈剑涛; 王丽峰; 王羽; 马学立
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Machinery Co Ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2022-02-18
Anticipated expiration: 2031-07-28

Abstract

The utility model discloses an engine three-point supporting structure which comprises an engine, a front support arranged at the front end of the engine, a right rear support and a left rear support arranged at the rear end of the engine, wherein the right rear support and the left rear support are fixed on a whole vehicle frame, and the front support is rotatably connected to a boss of a gear chamber outside a crankshaft through a bushing. The utility model has the advantages of reliable structure, safe use and the like.

Description

Three-point supporting structure of engine

Technical Field

The utility model relates to the technical field of engines, in particular to a three-point supporting structure of an engine.

Background

At present, one engine platform has a plurality of matching markets, and relates to the markets of commercial vehicles and engineering machinery. In the traditional commercial vehicle market, when the engine is installed on the whole vehicle, the four-point supporting mode is adopted, namely, the left side and the right side of the front end are respectively supported on an engine cylinder body, and the two sides of the rear end are respectively supported on a flywheel shell. However, some mining vehicles and engineering machinery have severe working environments, the vibration reduction effect of the four-point supported engine is not good, the engine is dragged, and engine parts such as: and (5) vibration cracking of castings and hard pipe parts such as a gear chamber, a high-pressure oil pipe and the like. The existing four-point support technology for the engine is relatively dead in limitation of six degrees of freedom of the engine.

Also disclosed some engine three point support's structure in the prior patent, utility model patent that publication number is 202656849U discloses an engine three point support structure, and it utilizes engine fore-stock, engine left socle, engine right branch frame to form three point support, and its characteristics lie in engine fore-stock installation joint axle bush, like this, when the engine is fixed, the assembly stress strain who causes because of dimensional error all around can automatic release.

The above background disclosure is only for the purpose of assisting understanding of the concept and technical solution of the present invention and does not necessarily belong to the prior art of the present patent application, and should not be used for evaluating the novelty and inventive step of the present application in the case that there is no clear evidence that the above content is disclosed at the filing date of the present patent application.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an engine supporting structure which is reliable in structure and high in stability.

Therefore, the utility model provides a three-point supporting structure of an engine.

Preferably, the utility model can also have the following technical features:

the utility model provides an engine three point support structure, includes the engine to and install the fore-stock at the engine front end, the right back support, the left back support of rear end, right back support, left back support are fixed respectively in the both sides of bell housing, the fore-stock passes through the bush rotation to be connected on bent axle external gear room boss.

Furthermore, the lower part of the front bracket is fixed on the automobile through a bolt, and the upper part of the front bracket is provided with a connecting hole; the inner side of the bushing is in interference fit with a boss of an outer gear chamber of the crankshaft, and the outer side of the bushing is in clearance fit with a connecting hole of the front support.

Furthermore, the front support comprises a base and a connecting plate integrally formed on the base, and the whole front support is of an L-shaped structure; the upper part of the connecting plate is provided with the connecting hole; the base is also provided with a mounting hole connected with the frame.

The lubricating system comprises an oil supply path arranged on the front support and an oil hole arranged on the bush, and the front support oil supply path comprises an oil inlet hole arranged at the top of the front support and an annular oil groove arranged on the inner side of the front support; the oil inlet hole is communicated with the annular oil groove.

Further, the oil inlet hole is a screw hole and is provided with a sealing screw.

Further, the oil hole is provided in a range of the annular oil groove corresponding to the bush.

Compared with the prior art, the utility model has the advantages that: the front bracket is rotationally connected to the boss of the gear chamber, when the engine vibrates, the engine can slightly rotate through the boss of the outer gear chamber of the crankshaft, so that the vibration force is removed, and the engine is kept in a relatively stable working state; the working safety of the engine is improved.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is an exploded view of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. It should be emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the utility model or its application.

Non-limiting and non-exclusive embodiments will be described with reference to the following figures, wherein like reference numerals refer to like parts, unless otherwise specified.

An engine three-point supporting structure as shown in fig. 1-2 comprises an engine 10, a front bracket 1 mounted at the front end of the engine 10, a right rear bracket 4 and a left rear bracket 5 mounted at the rear end of the engine 10. The front bracket 1 is rotatably connected to a boss 3 of an external gear chamber of the crankshaft through a bush 2. Thus, when the engine 10 vibrates, the engine 10 can slightly rotate through the boss 3 of the external gear chamber of the crankshaft, and the vibration force is removed, so that the engine 10 can keep a relatively stable working state. The use of bush 2 avoids fore-stock 1 and gear room boss 3 direct friction, causes the contact surface of the two to take place wearing and tearing, causes the safe quality problem. In a preferred embodiment, the lower portion of the front bracket 1 is fixed to the vehicle by bolts, and the upper portion thereof is provided with a coupling hole 12. The inner side of the bush 2 is in interference fit with the boss 3 of the gear chamber, and the outer side of the bush is in clearance fit with the connecting hole 12 of the front bracket 1. The fore-stock 1 cooperates right after-poppet 4, left after-poppet 5 to carry on spacingly to the axial of engine 10, recycles fore-stock 1 and gear room boss 3's rotation connected mode, adapts to the pulling force that engine 10 vibration produced, improves the security and the stability of engine 10 operation. Specifically, the front bracket 1 comprises a base and a connecting plate integrally formed on the base, and the whole front bracket is of an L-shaped structure; the upper part of the connecting plate is provided with the connecting hole 12; the base is also provided with a mounting hole connected with the frame.

When the front bracket is installed, the bush 2 is firstly installed on the gear chamber boss 3 in an interference fit mode, and then the front bracket 1 is installed on the bush 2.

In order to reduce the friction wear of the front bracket, a lubricating system is arranged. The lubricating system comprises an oil supply way arranged on the front support 1 and an oil hole 21 arranged on the lining 2, the oil supply way of the front support comprises an oil inlet hole 11 arranged at the top of the front support 1 and an annular oil groove arranged on the inner side of the front support 1, and the oil inlet hole 11 is communicated with the annular oil groove. The oil holes 21 correspond to the annular oil grooves in position. Grease can be regularly injected for lubrication through the oil inlet hole 11 at the top of the front bracket 1, so that the friction and the abrasion of the front bracket 1 can be reduced, and the working safety of the engine 10 is improved.

Those skilled in the art will recognize that numerous variations are possible in light of the above description, and therefore the examples and drawings are merely intended to describe one or more specific embodiments.

While there has been described and illustrated what are considered to be example embodiments of the present invention, it will be understood by those skilled in the art that various changes and substitutions may be made therein without departing from the spirit of the utility model. In addition, many modifications may be made to adapt a particular situation to the teachings of the present invention without departing from the central concept described herein. Therefore, it is intended that the utility model not be limited to the particular embodiments disclosed, but that the utility model will include all embodiments and equivalents falling within the scope of the utility model.

Claims

1. The utility model provides an engine three point support structure, includes the engine to and install the fore-stock at the engine front end, the right back support, the left back support of rear end, right back support, left back support are fixed respectively in the both sides of bell housing, its characterized in that: the front bracket is rotatably connected to a boss of the external gear chamber of the crankshaft through a bushing.

2. An engine three point support structure as defined in claim 1 wherein: the lower part of the front bracket is fixed on the automobile through a bolt, and the upper part of the front bracket is provided with a connecting hole; the inner side of the bushing is in interference fit with a boss of an outer gear chamber of the crankshaft, and the outer side of the bushing is in clearance fit with a connecting hole of the front support.

3. An engine three point support structure as defined in claim 2 wherein: the front support comprises a base and a connecting plate integrally formed on the base, and the whole front support is of an L-shaped structure; the upper part of the connecting plate is provided with the connecting hole; the base is also provided with a mounting hole connected with the frame.

4. An engine three point support structure as defined in claim 1 wherein: the lubricating system comprises an oil supply path arranged on the front support and an oil hole arranged on the bush, and the front support oil supply path comprises an oil inlet hole arranged at the top of the front support and an annular oil groove arranged on the inner side of the front support; the oil inlet hole is communicated with the annular oil groove.

5. An engine three point support structure as defined in claim 4 wherein: the oil inlet hole is a screw hole and is provided with a sealing screw.

6. An engine three point support structure as defined in claim 4 wherein: the oil hole corresponds to the annular oil groove in position.