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Tensioner, front end wheel train system and vehicle

A front-end gear train and tensioner technology, applied in the direction of belt/chain/gear, transmission device, mechanical equipment, etc., can solve the problems of increasing system friction loss, high system tension, affecting engine fuel consumption level, etc., to increase or decrease Effects of tension, fast response, and small footprint

Pending Publication Date: 2022-06-28
DONGFENG MOTOR GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the engine in the prior art, the system tension is too high, there is a problem of exacerbating the wear of each accessory bearing and the wear of the belt, and at the same time, high tension will increase the friction loss of the system, thereby affecting the fuel consumption level of the engine

Method used

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  • Tensioner, front end wheel train system and vehicle
  • Tensioner, front end wheel train system and vehicle
  • Tensioner, front end wheel train system and vehicle

Examples

Experimental program
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Embodiment 1

[0033] The tensioner provided in this embodiment includes a base, a rotating drive mechanism and a tensioning assembly. The base serves as a mounting base for the rotating driving mechanism and the tensioning assembly, and the rotating driving assembly provides driving power for the tensioning assembly to realize the tensioning assembly. One-way active rotation on the base. Wherein, the base has an installation cavity; the tensioning assembly is rotatably arranged on the base; the rotation driving mechanism includes a power member, a force transmission member and a cam driven to rotate by the power member; the power member is connected to the base The force transmission member and the cam are both rotatably arranged in the installation cavity of the base; the force transmission member is used for a first contact part that contacts with the cam and a second contact part that acts on the tensioning assembly. At the contact part, when the cam rotates along the rotation axis under...

Embodiment 2

[0045] Based on the same inventive concept, the present embodiment provides a front-end gear train system, including a crankshaft pulley, a compressor pulley, a water pump pulley, a generator pulley, and a crankshaft pulley, a compressor pulley, and a water pump. Belts for pulleys and generator pulleys. In order to realize the adjustment of the basic tension of the front-end gear train system to meet the tension requirements under different working conditions, in this embodiment, the front-end gear train system further includes the tensioner provided in Embodiment 1; The components act on the belt, and other unmentioned structures of the front-end gear train system may refer to the prior art, which will not be repeated in this embodiment.

[0046] The applicant found that in the existing traditional front-end gear train system, the position of the crankshaft, the compressor, the water pump, the generator, and the center point of the tensioner and the diameter of the pulley are...

Embodiment 3

[0050] Based on the same inventive concept, this embodiment also provides a vehicle, including the front-end wheel train system provided in Embodiment 2, which naturally has all the beneficial effects of the above-mentioned front-end wheel train system. The present invention does not specifically limit the type and type of the vehicle, and it can be any vehicle in the prior art, such as a family car, a passenger car, a truck, etc. For other undetailed structures of the vehicle, reference can be made to the relevant disclosures in the prior art , which is not explained here.

[0051] Taking the two-stage tension adjustment as an example, the adjustment control method of the vehicle in this embodiment is as follows:

[0052] The default state of the system is the low tension state. When the user requests the air conditioner to be turned on (press the air conditioner on button), the vehicle electronic control system receives the user's request command, and firstly sends the comma...

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Abstract

The invention discloses a tensioner, a front end wheel train system and a vehicle, and solves the technical problems that in the prior art, due to the fact that the tension of a system belt is too high, all accessories are abraded, the belt is abraded, the friction loss of the system is increased, and then the oil consumption level of an engine is influenced, the tensioner comprises a base, a rotation driving mechanism and a tensioning assembly; wherein. The base is provided with a mounting cavity; the tensioning assembly is rotationally arranged on the base; the rotation driving mechanism comprises a force transmission piece, a power piece and a cam driven by the power piece to rotate. The force transmission piece and the cam are rotationally arranged in the mounting cavity, and the power piece is connected to the base; the force transmission piece is provided with a first contact part acting on the cam and a second contact part acting on the tensioning assembly, so that the cam drives the force transmission piece and the tensioning assembly to rotate in the circumferential direction of the force transmission piece, the requirement adjustment of the belt tension is achieved, the tension needed under different working conditions is adapted and matched, and the purposes of reducing the friction work of an engine and reducing the oil consumption of the engine are achieved.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a tensioner, a front-end wheel train system and a vehicle. Background technique [0002] The belt tension design of the engine front-end gear system needs to comprehensively consider the compressor, generator, water pump and other accessories loads and the output excitation of the engine crankshaft pulley. The belt tension setting needs to consider the system to ensure that the slip rate of each accessory pulley meets the maximum load when the system reaches the maximum load. relevant design indicators. [0003] However, in the engine in the prior art, the system tension is too high, which aggravates the wear of each accessory bearing and the belt. At the same time, the high tension will increase the friction loss of the system, thereby affecting the fuel consumption level of the engine. SUMMARY OF THE INVENTION [0004] In order to solve the above-mentioned technical problems...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H7/12
CPCF16H7/12F16H7/1254
Inventor 丁伟向飞熊迪施发义向高
Owner DONGFENG MOTOR GRP
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