CN102086805A - Diesel engine gear train transmission device with exceeding belt pulley - Google Patents
Diesel engine gear train transmission device with exceeding belt pulley Download PDFInfo
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- CN102086805A CN102086805A CN 201110031531 CN201110031531A CN102086805A CN 102086805 A CN102086805 A CN 102086805A CN 201110031531 CN201110031531 CN 201110031531 CN 201110031531 A CN201110031531 A CN 201110031531A CN 102086805 A CN102086805 A CN 102086805A
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- belt pulley
- belt
- pulley
- inner ring
- ring framework
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Abstract
The invention discloses a diesel engine gear train transmission device with an exceeding belt pulley changing an engine belt pulley into an exceeding belt pulley as an improvement. The diesel engine gear train transmission system comprises a shock absorber belt pulley, an idler pulley, a water pump belt pulley, the exceeding belt pulley, a transmission belt and a tensioning pulley, wherein the exceeding belt pulley is composed of a belt plate, an inner ring frame, an outer ring frame, contact type seals, a radial needle roller bearing, a seal washer and a shaft sleeve; the inner ring frame and the outer ring frame are arranged between the belt pulley and the shaft sleeve; the belt plate and the end surface of one side of the inner ring frame are provided with the contact type seals; and a space formed by the inner ring frame and the outer ring frame is provided with a clutch roller and a spring. By removing the connection between the belt and an engine shaft of the exceeding belt pulley, the weight of the engine is relieved from the torque vibration, thus the transmission belt only can drive the engine in single direction, the excessive sliding and shaking of the belt can be avoided in the accelerating and decelerating processes of the engine, and the influence of the engine on the belt driving system is reduced.
Description
Technical field
The invention belongs to Structure of Internal-Combustion Engine, be specifically related to a kind of employing and surmount the device that belt pulley is applied to the transmission of diesel engine train.
Background technique
The crankshaft system of internal-combustion engine is under the moment loading of gas pressure and inertial force formation, to in vertical plane, produce torsional vibration around axis, this torsional vibration is delivered on all engine accessory power ratings, and engine accessory power rating is quickened repeatedly along with igniting and compression and slows down.The velocity variations that motor is frequent will be very unfavorable to belt drive system.Mainly show: 1) require the belt train that very high tension force is arranged; 2) complete machine does not reach the NVH performance (NVH: noise, vibration etc.) of expection; 3) belt is shaken, is cracked, and the replacement cycle shortens.Meanwhile rotary component such as water pump, generator has bigger quality, also just has bigger inertia torque, and wherein the inertia torque of generator is the highest.Power is big more, and inertia torque is also high more, and the velocity ratio of motor is higher, and higher inertia torque has surmounted limitting of belt drives.Effectively alleviating the overtired problem of belt drive system is the purpose that proposes the present invention.
Summary of the invention
The objective of the invention is, provide a kind of employing to surmount the device of belt pulley replacement generator conventional belt wheel drive train.
Below in conjunction with accompanying drawing principle of the present invention and structure are described: the conventional diesel engine belt train generally is made of vibration damper belt pulley, idle pulley, water pump pulley, generator pulley, Idle wheel and drivign belt, the belt pulley that the present invention will be connected with the generator output shaft is as the driving wheel of drive train, be to be that generator pulley is changed to surmounting belt pulley as a kind of important improvement.Surmounting belt pulley has: belt pulley, outer ring framework, inner ring framework, contact seal, clutch roller, entad needle bearing, seal washer, protective cover, axle sleeve, retainer (as Fig. 1).Concrete form and structure is: by vibration damper belt pulley, idle pulley, water pump pulley, surmount belt pulley, drivign belt, Idle wheel and form diesel engine train transmission system.Wherein surmount belt pulley by belt pulley, Internal and external cycle framework, contact seal, entad needle bearing, seal washer and axle sleeve are formed.Inside and outside circle framework places between belt pulley and the axle sleeve, and the end face of belt pulley and inner ring framework one side is equipped with contact seal, is provided with clutch roller, retainer and spring in the space that the Internal and external cycle framework is constituted.The conventional diesel engine belt pulley ties up to during the engine retard because the combustion characteristic of inertia torque and motor, and can there be shake in belt, and the inner ring framework that surmounts belt pulley is provided with damping assembly, can eliminate this shake.Its structure and principle be, the inner ring framework is provided with the arc groove of placing retainer and the hook-shaped groove of placing the clutch roller, and retainer and clutch roller are inlayed respectively and crouched in arc groove and hook-shaped groove (as Fig. 3).During engine operation, the train drivign belt drives the outer ring framework that surmounts belt pulley, and the outer ring framework is initiatively to enclose, and the inner ring framework is from moving-coil.The clutch roller is fixed between the inside and outside circle framework by spring and retainer, makes inside and outside circle framework form a rigid body, and the outer ring drives inner ring and rotates together.When engine retard, the outer ring framework slows down thereupon, because effect of inertia, the inner ring framework also will continue motion, but the interior clutch roller of inner ring framework this moment need overcome the pretightening force of spring to be moved in colluding groove, after the clutch roller enters groove, makes inner ring framework and outer ring framework throw off, outer ring framework and inner ring framework rely on needle bearing to carry out relative movement, make that surmounting belt pulley produces idle running.To produce to a certain degree counter-rotating so when engine retard, surmount belt pulley, can eliminate the shake of drivign belt, the working life that can also improve the motor drivign belt simultaneously.Directly be connected with generator shaft by surmounting belt pulley, the generator quality removed from torsional vibration, make the drivign belt can only the unidirectional drive generator, thus motor quicken and moderating process in avoid the belt excessive slip, rock; Meanwhile reduce the range of movement of belt tightener, also reduced the belt tension force level.
Description of drawings
Fig. 1 is the structural representation of diesel engine train transmission system.
Fig. 2 is that the present invention surmounts belt sheave structure and schematic diagram.
Fig. 3 is a clutch roller unit structural representation among the present invention.
Embodiment
Below in conjunction with accompanying drawing and by embodiment structural principle of the present invention is further described.But the content that the present invention is contained is not limited to following embodiment.
The technological scheme that has a diesel engine train transmission device that surmounts belt pulley is achieved in that by vibration damper belt pulley 1, idle pulley 2, water pump pulley 3, surmount belt pulley 4, drivign belt 5, Idle wheel 6 forms diesel engine train transmission system (as Fig. 1).Wherein surmount belt pulley 4 by belt pulley 7, outer ring framework 8, inner ring framework 10, contact seal 11, entad needle bearing 12, seal washer 13, protective cover 14 and axle sleeve 16 are formed.Outer ring framework 8 and inner ring framework 10 place between belt pulley 7 and the axle sleeve 16, and belt pulley 7 is equipped with contact seal 11 with the end face of inner ring framework 10 1 sides.Be provided with clutch roller 9, retainer 17 and spring 18 in the space that outer ring framework 8 and inner ring framework 10 are constituted, the two ends of retainer 17 are provided with entad needle bearing 12.Axle sleeve 16 outer ends are processed with keyway 15 in order to being connected with the generator output shaft.Belt pulley 7 is equipped with seal washer 13 with the end face of axle sleeve 16 1 sides, and protective cover 14 is equipped with in the outer end of belt pulley 7.Surmount belt pulley 4 and generator shaft direct-connected (as Fig. 2).Clutch roller 9 and spring 18 are assembled in the retainer 17, and the retainer side is provided with groove; The clutch roller is provided with small sircle hole, and the two ends of spring snap in respectively in the small sircle hole of the groove of retainer and clutch roller.Inner ring framework 10 is provided with the arc groove 19 of placing retainer and the hook-shaped groove 20 of placing the clutch roller, and retainer 17 and clutch roller 9 are inlayed respectively and crouched in arc groove 19 and hook-shaped groove 20 (as Fig. 3).
Entad needle bearing is mainly used in and bears radial load, and inside and outside circle framework concentric is assembled between belt pulley and the axle sleeve, is provided with 19 clutch rollers in the inside and outside circle framework.The diameter of inside and outside circle framework is respectively 29mm and 37mm or can selects as required; The diameter of clutch roller is 3.5mm; Inner ring framework and axle sleeve are interference fit; Outer ring framework and belt pulley are interference fit.The connecting thread size that surmounts belt pulley axle sleeve and generator is M16 * 1.5mm.The axle sleeve diameter that surmounts belt pulley mates according to the specification of generator output shaft, and it is φ 65 that present embodiment surmounts the belt pulley external diameter.When installation surmounts belt pulley, will surmount belt pulley from the inner (right-hand member Fig. 2) of surmounting belt pulley with the moment of torsion of 85N.m and the generator output shaft is fastening, after surmounting belt pulley and being assembled to specified position, retainingf key be keyed in the keyway of axle sleeve, load onto protective cover.
The present invention implements at CY4102AZL diesel engine (Dongfeng Chaoyang Diesel Engine Co.).Test result shows, adopts conventional belt wheel train, and its belt tension is 180 ~ 1000N, and the stretcher displacement is 2 ~ 8mm, and belt working life is 20000km, and tension force and displacement are bigger with rotation speed change.Employing has the drive train that surmounts belt pulley, and its belt tension is 200 ~ 750N, and the stretcher displacement is 2 ~ 3mm, and belt working life is 40000km, and tension force and displacement become less with rotation speed change.
Characteristics of the present invention and beneficial effect are, adopt the generator pulley in the overrunning belt pulley replacement traditional scheme, have the following advantages: (1) has reduced the impact of generator to the belt drive system, can mate the generator of bigger inertia torque; (2) slacken the driving belt vibration, reduced belt tension power, prolonged the life-span; (3) reduce stretcher tensile force and displacement, prolonged the stretcher life-span; (4) prolong life-span of whole driving belt drive system, improved the NVH performance. By using proof overrunning belt pulley system architecture reliable, have widely practicality and economy.
Claims (2)
1. have the diesel engine train transmission device that surmounts belt pulley; has the vibration damper belt pulley; idle pulley; water pump pulley; drivign belt; Idle wheel; belt pulley; the outer ring framework; the inner ring framework; contact seal; the clutch roller; needle bearing entad; seal washer; protective cover; axle sleeve; retainer and spring; it is characterized in that by vibration damper belt pulley (1); idle pulley (2); water pump pulley (3); surmount belt pulley (4); drivign belt (5); Idle wheel (6) is formed diesel engine train transmission system; wherein surmount belt pulley (4) by belt pulley (7); outer ring framework (8); inner ring framework (10); contact seal (11); needle bearing (12) entad; seal washer (13); protective cover (14) and axle sleeve (16) are formed; outer ring framework (8) and inner ring framework (10) place between belt pulley (7) and the axle sleeve (16); belt pulley (7) is equipped with contact seal (11) with the end face of inner ring framework (10) one sides; be provided with clutch roller (9) in the space that outer ring framework (8) and inner ring framework (10) are constituted; retainer (17) and spring (18); the two ends of retainer (17) are provided with entad needle bearing (12); axle sleeve (16) outer end is processed with keyway (15); belt pulley (7) is equipped with seal washer (13) with the end face of axle sleeve (16) one sides; protective cover (14) is equipped with in the outer end of belt pulley (7), and it is direct-connected with generator shaft to surmount belt pulley (4).
2. according to the described diesel engine train transmission device that surmounts belt pulley that has of claim 1, it is characterized in that described clutch roller (9) and spring (18) are assembled in the retainer (17), the retainer side is provided with groove; The clutch roller is provided with small sircle hole, the two ends of spring snap in respectively in the small sircle hole of the groove of retainer and clutch roller, described inner ring framework (10) is provided with the arc groove (19) of placing retainer and the hook-shaped groove (20) of placing the clutch roller, and retainer (17) and clutch roller (9) are inlayed respectively and crouched in arc groove (19) and hook-shaped groove (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110031531 CN102086805A (en) | 2011-01-29 | 2011-01-29 | Diesel engine gear train transmission device with exceeding belt pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110031531 CN102086805A (en) | 2011-01-29 | 2011-01-29 | Diesel engine gear train transmission device with exceeding belt pulley |
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| Publication Number | Publication Date |
|---|---|
| CN102086805A true CN102086805A (en) | 2011-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110031531 Pending CN102086805A (en) | 2011-01-29 | 2011-01-29 | Diesel engine gear train transmission device with exceeding belt pulley |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882960A (en) * | 2017-12-14 | 2018-04-06 | 龙岩阿赛特汽车零部件制造有限公司 | OWC belt wheel of automobile engine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10253495A1 (en) * | 2001-12-14 | 2003-09-11 | Ina Schaeffler Kg | Free-wheel device for belt-driven starter generator has two axially offset free-wheel devices in annular gap with opposing working principles, direction dependent locking, free-wheel functions |
| CN2903419Y (en) * | 2006-03-07 | 2007-05-23 | 潍柴动力股份有限公司 | Diesel engine front belt driving apparatus |
| CN201087735Y (en) * | 2007-08-30 | 2008-07-16 | 奇瑞汽车有限公司 | Gear train installation and placement structure of engine |
| CN101539194A (en) * | 2009-04-09 | 2009-09-23 | 李志敏 | Unidirectional pulley of automobile generator |
| CN201679938U (en) * | 2009-12-30 | 2010-12-22 | 无锡市晟达汽车附件厂 | One-way clutch belt wheel |
| CN201963398U (en) * | 2011-01-29 | 2011-09-07 | 东风朝阳柴油机有限责任公司 | Diesel linear transmission device with beyond pulley |
-
2011
- 2011-01-29 CN CN 201110031531 patent/CN102086805A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10253495A1 (en) * | 2001-12-14 | 2003-09-11 | Ina Schaeffler Kg | Free-wheel device for belt-driven starter generator has two axially offset free-wheel devices in annular gap with opposing working principles, direction dependent locking, free-wheel functions |
| CN2903419Y (en) * | 2006-03-07 | 2007-05-23 | 潍柴动力股份有限公司 | Diesel engine front belt driving apparatus |
| CN201087735Y (en) * | 2007-08-30 | 2008-07-16 | 奇瑞汽车有限公司 | Gear train installation and placement structure of engine |
| CN101539194A (en) * | 2009-04-09 | 2009-09-23 | 李志敏 | Unidirectional pulley of automobile generator |
| CN201679938U (en) * | 2009-12-30 | 2010-12-22 | 无锡市晟达汽车附件厂 | One-way clutch belt wheel |
| CN201963398U (en) * | 2011-01-29 | 2011-09-07 | 东风朝阳柴油机有限责任公司 | Diesel linear transmission device with beyond pulley |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882960A (en) * | 2017-12-14 | 2018-04-06 | 龙岩阿赛特汽车零部件制造有限公司 | OWC belt wheel of automobile engine |
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Application publication date: 20110608 |