CN109595071B

CN109595071B - Power transmission structure

Info

Publication number: CN109595071B
Application number: CN201910116802.1A
Authority: CN
Inventors: 赵泉; 卢年红; 钟秀俊; 刘振锋; 黄幼林
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Machinery Co Ltd
Priority date: 2019-02-15
Filing date: 2019-02-15
Publication date: 2020-11-20
Anticipated expiration: 2039-02-15
Also published as: CN109595071A

Abstract

The invention discloses a power transmission structure, which is connected with an engine cylinder body, and comprises: the device comprises a crankshaft, a flywheel, a spring steel sheet, a flywheel connecting ring, a flywheel shell connecting ring and a hydraulic torque converter bearing seat. One end of the crankshaft is fixedly connected with the engine cylinder body; one end of the flywheel is fixedly connected with the other end of the crankshaft, and a flywheel shell is arranged on the outer side of the flywheel; one end of the spring steel sheet is fixedly connected with the other end of the flywheel; the flywheel connecting ring is fixed on the other end of the spring steel sheet; the flywheel shell connecting ring is fixed on the flywheel shell; the hydraulic torque converter bearing seat is fixed on the flywheel connecting ring; the flywheel connecting ring is provided with a power output end and a thin end part, and the thin end part extends into the circular hole in the center of the flywheel. Therefore, the power transmission structure is simple and reasonable in structure, and the same engine can be matched with different whole vehicles.

Description

Power transmission structure

Technical Field

The invention relates to the technical field of power connection, in particular to a power transmission structure.

Background

At present, most of power of various non-road, commercial and passenger vehicles is provided by engines, the situation that the same engine is matched with chassis of different vehicles is very common, and the situation that the same chassis is matched with various engines is also very common. Because the changing difficulty of the vehicle chassis is larger, in the current development scheme, most of the power output structures of the engine, namely the flywheel shell end, the flywheel end and the like, are directly changed to meet the requirements on the matched structure. For engine manufacturers, the number of parts of the power port of the engine is large, and the difficulty in manufacturing and managing the parts is increased.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Disclosure of Invention

The invention aims to provide a power transmission structure which is simple and reasonable in structure, and under the condition that the structure is not changed, the same engine can be matched with different whole vehicles.

In order to achieve the above object, the present invention provides a power transmission structure connected to an engine cylinder, the power transmission structure including: the device comprises a crankshaft, a flywheel, a spring steel sheet, a flywheel connecting ring, a flywheel shell connecting ring and a hydraulic torque converter bearing seat. One end of the crankshaft is fixedly connected with the engine cylinder body; one end of the flywheel is fixedly connected with the other end of the crankshaft, and a flywheel shell is arranged on the outer side of the flywheel; one end of the spring steel sheet is fixedly connected with the other end of the flywheel; the flywheel connecting ring is fixed on the other end of the spring steel sheet; the flywheel shell connecting ring is fixed on the flywheel shell; the hydraulic torque converter bearing seat is fixed on the flywheel connecting ring; the flywheel connecting ring is provided with a power output end and a thin end part, and the thin end part extends into the circular hole in the center of the flywheel.

In a preferred embodiment, the flywheel attachment ring is bolted to the other end of the spring steel plate.

In a preferred embodiment, the flywheel housing attachment ring is bolted to the flywheel housing.

In a preferred embodiment, the thin end of the flywheel connecting ring is in clearance fit with the circular hole at the center of the flywheel.

In a preferred embodiment, the power output end of the flywheel connecting ring is used for connecting with a power interface of the whole vehicle.

Compared with the prior art, the power transmission structure is simple and reasonable in structure, and the same engine can be matched with different whole vehicles.

Drawings

Fig. 1 is a cross-sectional structural schematic view of a power transmission structure according to an embodiment of the present invention.

Description of the main reference numerals:

the method comprises the following steps of 1-an engine cylinder body, 2-a crankshaft, 3-a flywheel, 4-a flywheel shell, 5-a spring steel sheet, 6-a flywheel connecting ring, 7-a flywheel shell connecting ring and 8-a hydraulic torque converter bearing seat.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

As shown in fig. 1, fig. 1 is a cross-sectional structural schematic view of a power transmission structure according to an embodiment of the present invention.

A power transmission structure according to a preferred embodiment of the present invention is connected to an engine block 1, and includes: the device comprises a crankshaft 2, a flywheel 3, a spring steel sheet 5, a flywheel connecting ring 6, a flywheel shell connecting ring 7 and a hydraulic torque converter bearing seat 8. One end of the crankshaft 2 is fixedly connected with the engine cylinder body 1; one end of the flywheel 3 is fixedly connected with the other end of the crankshaft 2, and a flywheel shell 4 is arranged on the outer side of the flywheel 3; one end of the spring steel sheet 5 is fixedly connected with the other end of the flywheel 3; the flywheel connecting ring 6 is fixed on the other end of the spring steel sheet 5; the flywheel shell connecting ring 7 is fixed on the flywheel shell 4; the hydraulic torque converter bearing seat 8 is fixed on the flywheel connecting ring 6; the flywheel connecting ring 6 has a power output end and a thin end, and the thin end extends into the circular hole at the center of the flywheel 3.

In a preferred embodiment, the flywheel connecting ring 6 is fixed on the other end of the spring steel sheet 5 through a bolt; the flywheel housing connecting ring 7 is fixed on the flywheel housing 4 through bolts.

In a preferred embodiment, the thin end part of the flywheel connecting ring 6 is in clearance fit with the circular hole at the center part of the flywheel 3; the power output end of the flywheel connecting ring 6 is used for being connected with a power interface of the whole vehicle.

In practical application, the flywheel connecting ring 6 is fixed on the spring steel sheet 5 through a bolt, the spring steel sheet 5 is fixed on the flywheel 3 on the engine cylinder body 1 through a bolt, the flywheel housing connecting ring 7 is fixed on the flywheel housing 4 through a bolt, and the hydraulic torque converter bearing seat 8 is fixed on the flywheel connecting ring 6 through a bolt. Meanwhile, the power output end of the flywheel connecting ring 6 is fixedly connected with power interfaces of the whole vehicle, such as a gearbox, a clutch, a hydraulic torque converter and the like, so as to transmit power; the flywheel housing connecting ring 7 is fixedly connected with a shell of a gearbox, a clutch, a hydraulic torque converter and the like at the end of the whole vehicle so as to protect an internal power transmission structure. Wherein, the flywheel connecting ring 6 is fixed on the spring steel sheet 5 through bolts, and the thin end part thereof extends into the round hole at the central part of the flywheel 3. The spring steel sheet 5 meets the requirement of the hydraulic torque converter according to the thickness and the spring steel material, the thin end part of the flywheel connecting ring 6 extends into a circular hole at the central part of the flywheel 3, a proper gap is reserved between the outer diameter of the thin end part of the flywheel connecting ring 6 and the inner diameter of the central part of the flywheel 3, and the functions of supporting and balancing are achieved under the dynamic operation.

In a word, the power transmission structure is simple and reasonable in structure, matching requirements are met by newly designing the flywheel shell connecting ring 7 and the flywheel connecting ring 6, management is only performed on the connecting ring structure aiming at different complete vehicle matching manufacturers, the management state is reduced, matching management is orderly, production and manufacturing are relatively simple, and meanwhile, the requirements of general and special customers are met by increasing and decreasing power output end parts, so that the same engine can be matched with different complete vehicles.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims

1. A power transmission structure connected with an engine block, characterized by comprising:

one end of the crankshaft is fixedly connected with the engine cylinder body;

one end of the flywheel is fixedly connected with the other end of the crankshaft, and a flywheel shell is arranged on the outer side of the flywheel;

one end of the spring steel sheet is fixedly connected with the other end of the flywheel;

the flywheel connecting ring is fixed on the other end of the spring steel sheet;

the flywheel shell connecting ring is fixed on the flywheel shell; and

the hydraulic torque converter bearing seat is fixed on the flywheel connecting ring;

the flywheel connecting ring is provided with a power output end and a thin end part, and the thin end part extends into a circular hole in the center of the flywheel;

wherein the thin end part of the flywheel connecting ring is in clearance fit with the round hole at the central part of the flywheel;

the flywheel connecting ring is fixed on the other end of the spring steel sheet through a bolt;

the flywheel shell connecting ring is fixed on the flywheel shell through a bolt;

the power output end of the flywheel connecting ring is used for being connected with a power interface of the whole vehicle.