CN216950572U - Novel engine front end wheel train - Google Patents
Novel engine front end wheel train Download PDFInfo
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- CN216950572U CN216950572U CN202220437943.0U CN202220437943U CN216950572U CN 216950572 U CN216950572 U CN 216950572U CN 202220437943 U CN202220437943 U CN 202220437943U CN 216950572 U CN216950572 U CN 216950572U
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- pulley
- belt pulley
- air conditioner
- belt
- crankshaft
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Abstract
The utility model discloses a novel engine front-end wheel train, which comprises a crankshaft belt pulley, a water pump belt pulley, an idler pulley, an air conditioner belt pulley, a generator belt pulley and a tension pulley, and is characterized in that: a crankshaft belt pulley, a water pump belt pulley, an idler pulley, an air conditioner belt pulley, a generator belt pulley and a tension pulley which are connected by a poly-wedge belt in sequence along the anticlockwise direction; the crank pulley is positioned at the lowest part of the gear train, the water pump pulley is positioned at the right upper part of the crank pulley, and the air conditioner pulley is positioned at the left upper part of the crank pulley; wherein the idler wheel is positioned between the water pump belt pulley and the air conditioner belt pulley; the generator belt pulley and the tensioning wheel are located between the air conditioner belt pulley and the crankshaft belt pulley, and the generator belt pulley is located above the left side of the tensioning wheel. The utility model has the advantages of novel structure, capability of reducing cost, lightening the weight of the wheel train and the like.
Description
Technical Field
The utility model relates to the technical field of engines, in particular to a novel engine front-end wheel train.
Background
The idler wheel of the front-end gear train of the existing engine has overlarge load, when the stress of the gear train is increased, the stress of the first idler wheel is increased, and the structural strength of parts belongs to a risk point; the first idler wrap angle is too large and belt installation assemblability is low. The increase of the driving force of the engine belongs to the trend, and a wheel train structure which can be compatible with the existing wheel train needs to be designed aiming at the evaluation of the stress of the wheel train.
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 a novel engine front-end wheel train which is novel in structure, can reduce cost and is in accordance with light weight design.
Therefore, the utility model provides a novel engine front-end wheel train.
Preferably, the utility model can also have the following technical features:
a novel engine front-end wheel train comprises a crankshaft belt pulley, a water pump belt pulley, an idler pulley, an air conditioner belt pulley, a generator belt pulley, a tension pulley, and the crankshaft belt pulley, the water pump belt pulley, the idler pulley, the air conditioner belt pulley, the generator belt pulley and the tension pulley which are connected in turn by a poly-wedge belt along the anticlockwise direction; the crank pulley is positioned at the lowest part of the gear train, the water pump pulley is positioned at the right upper part of the crank pulley, and the air conditioner pulley is positioned at the left upper part of the crank pulley; wherein the idler wheel is positioned between the water pump belt pulley and the air conditioner belt pulley; the generator belt pulley and the tensioning wheel are located between the air conditioner belt pulley and the crankshaft belt pulley, and the generator belt pulley is located above the left side of the tensioning wheel.
Further, the wrap angle of the air conditioner belt pulley is 144.5-148.5 degrees.
Further, the wrap angle of the air conditioner pulley is 146 degrees.
Further, the wrap angle of the crank pulley is 138-142 degrees.
Further, the wrap angle of the crank pulley is 140 °.
Further, the V-ribbed belt is an 8PK V-ribbed belt.
Compared with the prior art, the utility model has the advantages that: under the prerequisite that satisfies train design requirement, rationally arranged engine front end train, got rid of idle wheel and the idle wheel support between crank pulley and the water pump belt pulley, made the train reduce by 5kg, practice thrift manufacturing cost, improved the assembly efficiency of engine, accord with the lightweight demand of engine. The lightweight design of the engine gear train reduces the load of the whole vehicle, and is beneficial to improving the dynamic property and the economical efficiency of the engine.
Drawings
FIG. 1 is a schematic wheel train 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 in no way intended to limit the scope of the utility model or its applications.
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.
The novel engine front end wheel train shown in fig. 1 comprises a crank pulley 1, a water pump pulley 3, an idler pulley 4, an air conditioner pulley 5, a generator pulley 6 and a tension pulley 7, wherein the crank pulley 1, the water pump pulley 3, the idler pulley 4, the air conditioner pulley 5, the generator pulley 6 and the tension pulley 7 are sequentially connected by an 8PK multi-wedge belt 2 along the anticlockwise direction. Crankshaft pulley 1 is located the below of train, water pump pulley 3 is located crankshaft pulley 1's upper right side, air conditioner belt pulley 5 is located crankshaft pulley 1's upper left side. Wherein, the idle pulley 4 is positioned between the water pump pulley 3 and the air conditioner pulley 5, the V-ribbed belt 2 is wound around the lower side surface of the idle pulley 4, and the V-ribbed belt 2 is pressed downwards by the idle pulley 4 so as to increase the wrap angle of the air conditioner pulley 5. The generator belt pulley 6 and the tension pulley 7 are positioned between the air conditioner belt pulley 5 and the crankshaft belt pulley 1, and the generator belt pulley 6 is positioned above the tension pulley 7 at the left side. The tensioner 7 is used to adjust the wrap angle of the pulley 1, and in the present embodiment, serves to reduce the wrap angle of the pulley 1.
The V-ribbed belt 2 is pressed on the lower side of the idle pulley 4, so that the wrap angle of the air conditioner belt pulley 5 is increased. Preferably, the wrap angle of the air conditioner pulley 5 is 144.5 ° to 148.5 °, and most preferably 146 °. The assembly mode of the V-ribbed belt 2 is changed again, the wrap angle of the air-conditioning belt pulley 5 is increased from 108 degrees to 144.5 degrees to 148.5 degrees, and the transmission power is increased.
The wrap angle of the crank pulley 1 is adjusted by the tension pulley 7 to reduce the wrap angle of the crank pulley 1. Preferably, the wrap angle of the pulley 1 is 138 ° to 142 °, most preferably 140 °. The wrap angle of the pulley 1 is reduced from 209 DEG to 138 DEG to 142 DEG, and the transmission power is reduced.
According to the technical scheme of the embodiment, the test is carried out, and the static calculation result shows that the installation tension is 459N which is 4.88 times of the minimum installation tension 94N and meets the requirement; when the band section resonates, the minimum rotating speed of the engine is 2680rpm, and the engine is not in the rotating speed working range of the engine, so that the requirement is met. Dynamic analysis results: the maximum slip rate of the belt in the gear train is the generator belt pulley 6, the slip rate is 1.37 percent, the slip rates of all the belts are not more than 3 percent, and the design requirement of the gear train is met; the maximum dynamic tension of a belt in the gear train is between the crankshaft and the water pump belt pulley 3, the maximum tension is 1390N, the dynamic tension of each wedge is 174N, and the requirement that the tension of each wedge is less than 300N is met; the maximum amplitude of the belt in the gear train is at the position between the crankshaft pulley 1 and the water pump pulley 3, the amplitude is 0.468 percent and is not more than 10 percent of the span, and the design requirement is met; the maximum of the large peak of the swing angle peak of the tension wheel support arm in the gear train is 3.41 degrees and is not more than 5 degrees, and the design requirement is met. The calculation results show that the newly designed engine front-end wheel system meets the design requirements.
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 can 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 (6)
1. The utility model provides a novel engine front end train, includes crank pulley, water pump belt pulley, idler, air conditioner belt pulley, generator belt pulley, take-up pulley, its characterized in that: a crankshaft belt pulley, a water pump belt pulley, an idler pulley, an air conditioner belt pulley, a generator belt pulley and a tension pulley which are connected by a poly-wedge belt in sequence along the anticlockwise direction; the crankshaft pulley is positioned at the lowest part of the gear train, the water pump pulley is positioned at the upper right part of the crankshaft pulley, and the air conditioner pulley is positioned at the upper left part of the crankshaft pulley; wherein the idler pulley is positioned between the water pump pulley and the air conditioner pulley; the generator belt pulley and the tensioning wheel are located between the air conditioner belt pulley and the crankshaft belt pulley, and the generator belt pulley is located above the left side of the tensioning wheel.
2. A novel engine front end train as claimed in claim 1, wherein: the wrap angle of the air conditioner belt pulley is 144.5-148.5 degrees.
3. A new engine front end train as claimed in claim 2, wherein: the wrap angle of the air conditioner belt pulley is 146 degrees.
4. A novel engine front end train as claimed in claim 1, wherein: the wrap angle of the crankshaft pulley is 138-142 degrees.
5. A new engine front end train as claimed in claim 4, wherein: the wrap angle of the crankshaft pulley is 140 degrees.
6. A novel engine front end train as claimed in claim 1, wherein: the V-ribbed belt is an 8PK V-ribbed belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220437943.0U CN216950572U (en) | 2022-03-01 | 2022-03-01 | Novel engine front end wheel train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220437943.0U CN216950572U (en) | 2022-03-01 | 2022-03-01 | Novel engine front end wheel train |
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| Publication Number | Publication Date |
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| CN216950572U true CN216950572U (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220437943.0U Active CN216950572U (en) | 2022-03-01 | 2022-03-01 | Novel engine front end wheel train |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114412638A (en) * | 2022-03-01 | 2022-04-29 | 广西玉柴机器股份有限公司 | Novel engine front end wheel train |
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2022
- 2022-03-01 CN CN202220437943.0U patent/CN216950572U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114412638A (en) * | 2022-03-01 | 2022-04-29 | 广西玉柴机器股份有限公司 | Novel engine front end wheel train |
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