CN-224200965-U - Crankshaft structure, engine and vehicle

CN224200965UCN 224200965 UCN224200965 UCN 224200965UCN-224200965-U

Abstract

The application provides a crankshaft structure, an engine and a vehicle, wherein the crankshaft structure comprises a crankshaft body and a damping wheel component; the crankshaft body is provided with a front end, the damping wheel component is arranged at the front end of the crankshaft body, and the crankshaft body and the damping wheel component are of an integrated structure. The novel crankshaft structure has the advantages that the assembly process is simplified, meanwhile, the problem that the integral weight of the crankshaft structure is increased due to accessories generated by the assembly process in the traditional crankshaft structure can be solved, meanwhile, the problem that secondary resonance is easily caused by the crankshaft structure under a high-speed working condition can be solved, and the NVH performance of the crankshaft structure is improved.

Inventors

CHEN WANG
HE ZHIBI
ZHAO FEI
CHEN JINYANG
Tang Shaofen
ZENG YITAO
TIAN HAO
CHEN XIANG
WEN ZHENQIANG
LIU YING

Assignees

重庆小康动力有限公司

Dates

Publication Date: 20260505
Application Date: 20250527

Claims (10)

1. A crankshaft structure, comprising: A crankshaft body having a front end; And the damping wheel component is arranged at the front end of the crankshaft body, and the crankshaft body and the damping wheel component are of an integrated structure.
2. The crankshaft structure according to claim 1, wherein the crankshaft structure comprises a liquid channel, the liquid channel is communicated with the crankshaft body and the damping wheel component, magnetorheological fluid is filled in the liquid channel, and an electromagnetic coil corresponding to the magnetorheological fluid is arranged in the damping wheel component and used for generating a magnetic field with the magnetorheological fluid.
3. The crankshaft structure of claim 2, wherein the electronic controller is connected to the electromagnetic coil through a driving circuit, and is configured to send a control signal to the driving circuit and control the driving circuit to drive the electromagnetic coil to operate.
4. A crankshaft arrangement according to claim 3, characterized in that the crankshaft arrangement is provided with a position sensor connecting the crankshaft body and the electronic controller, the position sensor being arranged to detect the rotational speed of the crankshaft body and to transmit a detected rotational speed signal to the electronic controller.
5. The crankshaft structure according to claim 2, wherein the liquid passage is a spiral passage.
6. The crankshaft structure according to claim 2, wherein the liquid passage is a curved passage.
7. The crankshaft structure according to claim 1, wherein a lubrication oil passage is provided in the crankshaft body, and a plurality of lubrication oil holes communicating with the lubrication oil passage are provided in the crankshaft body for inflow of lubrication oil.
8. The crankshaft structure of claim 1, wherein the damper wheel assembly includes a moment of inertia member and a conduit disposed within the moment of inertia member for balancing pressure within the crankshaft structure.
9. An engine comprising a crankshaft arrangement according to any one of claims 1 to 8.
10. A vehicle comprising the engine of claim 9.

Description

Crankshaft structure, engine and vehicle Technical Field The utility model relates to the technical field of crankshaft structures, in particular to a crankshaft structure, an engine and a vehicle. Background The crankshaft structure is one of the important components in an engine, and it converts the linear motion transmitted by a connecting rod into rotary motion and drives other components on the engine to work through the output torque of the crankshaft structure. In the traditional crankshaft structure, the crankshaft body and the damping wheel parts are connected in a split type through a flange or a bolt and the like, so that the problems that the assembly is complex, additional installation space and balance calibration process are needed, the manufacturing time is increased, the power of an engine is influenced, secondary resonance is easily caused under a high-speed working condition, and the NVH performance is influenced due to the fact that the integral weight of the crankshaft structure is increased due to the connection between the parts. Therefore, the existing crankshaft structure has the problems of complex assembly process, heavy overall weight and NVH performance reduction caused by the split structure. Disclosure of utility model Aiming at the defects in the prior art, the utility model aims to provide a crankshaft structure, an engine and a vehicle, which can solve the problem that the crankshaft structure in the prior art reduces NVH performance. The technical aim of the utility model is realized by the following technical scheme: In a first aspect, an embodiment of the application provides a crankshaft structure, including a crankshaft body and a damper wheel component, where the crankshaft body has a front end, the damper wheel component is disposed at the front end of the crankshaft body, and the crankshaft body and the damper wheel component are an integrally formed structure. Further, the crankshaft structure comprises a liquid channel, the liquid channel is communicated with the crankshaft body and the damping wheel component, magnetorheological fluid is filled in the liquid channel, and an electromagnetic coil corresponding to the magnetorheological fluid is arranged in the damping wheel component and used for generating a magnetic field with the magnetorheological fluid. Further, the electronic controller is connected with the electromagnetic coil through the driving circuit and is used for sending a control signal to the driving circuit and controlling the driving circuit to drive the electromagnetic coil to work. Further, the crankshaft structure is provided with a position sensor, the position sensor is connected with the crankshaft body and the electronic controller, and the position sensor is used for detecting the rotating speed of the crankshaft body and transmitting detected rotating speed signals to the electronic controller. Further, the liquid channel is a spiral channel. Further, the liquid channel is a curved channel. Further, a lubricating oil channel is arranged in the crankshaft body, and a plurality of lubricating oil holes communicated with the lubricating oil channel are formed in the crankshaft body and used for supplying lubricating oil to flow in. Further, the damping wheel component comprises a rotational inertia piece and a pipeline arranged in the rotational inertia piece, and the pipeline is used for balancing the pressure in the crankshaft structure. In a second aspect, an embodiment of the present application further provides an engine, including the crankshaft structure provided in the foregoing embodiment. In a third aspect, an embodiment of the present application further provides a vehicle, including the engine provided in the above embodiment. The embodiment of the utility model has the beneficial effects that: according to the embodiment of the application, the crankshaft body and the damping wheel part are arranged into the integrated structure, so that the assembly process is simplified, the problem that the integral weight of the crankshaft structure is increased due to accessories generated by the assembly process in the traditional crankshaft structure can be solved, and meanwhile, compared with the split structure in the prior art, the crankshaft structure provided by the embodiment of the application can reduce the problem that secondary resonance is easy to occur in the split structure in the prior art, and the NVH performance of the crankshaft structure is improved. Drawings In order to more clearly illustrate the technical solution of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below. FIG. 1 is a schematic diagram of a crankshaft structure according to an embodiment of the present application; FIG. 2 is a cross-sectional view of a crankshaft structure according to an embodiment of the present application; FIG. 3 is a schem