CN201865764U - Engine accessory belt transmission system - Google Patents
Engine accessory belt transmission system Download PDFInfo
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- CN201865764U CN201865764U CN2010206407790U CN201020640779U CN201865764U CN 201865764 U CN201865764 U CN 201865764U CN 2010206407790 U CN2010206407790 U CN 2010206407790U CN 201020640779 U CN201020640779 U CN 201020640779U CN 201865764 U CN201865764 U CN 201865764U
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- pulley
- generator
- engine
- automatic tensioner
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Abstract
The utility model provides an engine accessory belt transmission system, which is used for driving accessories including a generator and a water pump. The engine accessory belt transmission system comprises a crankshaft belt pulley (1), a generator belt pulley (2), a water pump belt pulley (3), a belt (4) and a mechanical automatic tensioner, wherein the generator belt pulley (2) and the water pump belt pulley (3) are driven by the crankshaft belt pulley (1) through the belt (4), the belt (4) is a poly V-belt, the mechanical automatic tensioner is disposed between the generator belt pulley (2) and the crankshaft belt pulley (1), the mechanical automatic tensioner is provided with a tension wheel (5) and an operating arm (6) supporting the same, and the tension wheel (5) presses the back face of the poly V-belt (4) to automatically adjust tension of the poly V-belt (4). The engine accessory belt transmission system is applicable to narrow engine compartment spaces of small-sized vehicle engines, realizes automatic compensation for length and tension of the belt and prevents slipping. Further, transmission efficiency is increased, and service lives of the belt and accessories are prolonged.
Description
Technical field
The utility model relates to the accessory belt transmission system of motor car engine.
Background technique
For mini engine, under the restriction in narrow engine compartment space, normally adopt the regulator generator position or regulate the tension force that manual tensioning modes such as deciding the Idle wheel position is come the regulator generator drive belt.For example, in Chinese utility model patent bulletin CN2809340, disclose a kind of motor car engine water pump belt stretcher that is used to install and fix generator, it comprises that an end is fixed on the generator support that has curve bath on the engine body, being provided with support block and generator support with through hole on generator support combines as a whole, the place is provided with regulating block at the inboard curve bath of generator support, offering porose and described curve bath on it communicates, the through hole that adjusting screw is passed on the support block is threaded with regulating block, regulates the tension force of belt by the position of manual turn adjusting screw change regulating block.
Under this tensioning mode, owing to belt its tension force after operation a period of time can be decayed and caused skidding, therefore belt installation tension force must be provided with very highly, the initial tension force of installing is generally greater than 600N (newton), this has just increased the risk of annex bearing failure, has also increased the friction power loss of system simultaneously; In the belt tension decay later stage, because tension force drops to lower level, the risk that skidding appears in annex increases; Simultaneously, in engine operation process,, can not adapt to the influence of engine luggine, also cause the appearance of problems such as the skidding of accessory wheel system, noise accessory wheel system because the tension force of belt can not be regulated automatically.
Chinese patent application publication number CN101144422 discloses a kind of engine accessory system (referring to this paper Fig. 2), its driving mechanism comprises air condition compressor belt wheel 1, power steering pump belt wheel 2, generator belt wheel 3, idle pulley 4 and tensioning pulley, and be connected with crankshaft pulley 6 by poly Vbelt 7, realize the band transmission by crankshaft pulley 6 as driving wheel, wherein said tensioning pulley 5 is installed on the housing or support of motor by automatic tensioning mechanism, and is arranged on the position of the slack list of next-door neighbour's crankshaft pulley 6.Here, improve the belt contact of generator belt wheel 3, keep the whole tension force of system's belt by tensioning pulley 5, thereby improve transmission efficiency, prevent problems such as belt slippage and noise by idle pulley 4.Yet, because idle pulley 4 must be set,, thereby causing complex structure simultaneously because this engine accessory power rating transmission system is arranged on the both sides of motor, overall dimensions increases, and can't adapt to the narrow engine compartment space of mini engine, and causes cost to improve.
A kind of adjusting device of belt tension that is used for motor of Chinese patent application publication number CN200510064037.1 (referring to this paper Fig. 3), comprise: a crank pulley 1, one auxiliary belt wheel 4 or a plurality of belt pulley, one passes to described auxiliary belt wheel or a plurality of belt pulley to drive the belt 2 of auxiliary device or a plurality of auxiliary devices with the moment of torsion of described crank pulley 1 on the described belt pulley, one promotes this belt 2 so that the Idle wheel 5 of tension force to be provided to it, one is used for regulating automatically the automatic takeup 3 (automatic belt tension regulator) of belt tension, this automatic takeup 3 comprises actuator 32 and link arm 8, the mobile terminal 32d of described actuator 32 is connected on the end of described link arm 8, Idle wheel 5 is supported with in the other end of link arm 8 rotation, and link arm 8 is supported to be waved by fulcrum 6.Here, regulate crank pulley and auxiliary belt wheel 4 (one or more) automatically,, prevent problems such as belt slippage and noise to improve transmission efficiency by automatic takeup 3 and Idle wheel 5.
Yet automatic takeup 3 related among the CN200510064037.1. includes actuator 32, and its structure is comparatively complicated, and size is bigger, can not be applicable to small vehicle motor.Also have, also do not relate to the tension force size or the range of choice of belt in the literary composition, cause puzzlement therefore can for undoubtedly manufacturing and installation.In addition, the cornerite of belt is not limited in the document yet, therefore requires the annex (such as generator) of working stability for some, when the cornerite of belt not enough and when causing skidding, will influence the stability of work.
The information that is disclosed in this model utility background technique part only is intended to deepen the understanding to general background technique of the present utility model, and should not be regarded as admitting or hint in any form that this information constitutes being prior art known in those skilled in the art.
The model utility content
Technical problem to be solved in the utility model is: existing mini engine, owing to adopt manual tensioning mode to come the tension force of regulator generator drive belt, belt must be installed tension force be provided with very high with overcome because of tension force decay was brought skids and problem such as noise; And the structure of the accessory drive system of the motor of common employing automatic tensioner is comparatively complicated, can't adapt to the narrow engine compartment space of small vehicle motor.
For addressing the above problem, the utility model provides a kind of Belt Driving System for Engine Accessories, wherein,
Described Belt Driving System for Engine Accessories comprises crank pulley, generator pulley, water pump pulley, belt and mechanical type automatic tensioner, and described generator pulley and water pump pulley are driven by described crank pulley by described belt, wherein,
Described belt is a poly Vbelt; Described mechanical type automatic tensioner is arranged between described generator pulley and the crank pulley, described mechanical type automatic tensioner comprises Idle wheel and supports the working arm of Idle wheel, described Idle wheel compresses the back side of described poly Vbelt, thereby the tension force of poly Vbelt is automatically adjusted;
Described motor is a mini engine, and the brachium of the working arm of described mechanical type automatic tensioner is less than 50mm, and described belt is spent greater than 150 for the cornerite of generator pulley, spends greater than 180 for the cornerite of crank pulley.
Preferably, the initial installation tension force of described belt is between 200N～400N.
Preferably, described Belt Driving System for Engine Accessories is arranged in the left side of motor.
By said structure, useful technique effect of the present utility model is: the belt drive system of the utility model auto-tensioning can adapt to the requirement in the narrow engine compartment space of small vehicle motor; The installation tension force of its belt can be arranged on relatively low level, has improved the life-span of belt and each annex bearing; Behind the belt operation certain hour, the extension of belt and wearing and tearing can be tensioned, and wheel is automatic to be compensated, and has improved the endurance quality of train; The distinctive damping function of Idle wheel can absorb the vibration that motor is delivered to train, has reduced wheel and has tied up to the risk that occurs in the running skidding with noise, has promoted the dynamic performance of train; Because Belt Driving System for Engine Accessories of the present utility model is arranged in the same side (left side) of motor, makes topology layout simple, also helps to reduce required space.
Description of drawings
Fig. 1 is the schematic representation of the utility model accessory belt transmission system.
Fig. 2 is a kind of schematic representation of engine accessory system of prior art.
Fig. 3 is the schematic representation of the engine accessory system of another kind of prior art.
Embodiment
With reference to figure 1, show a kind of Belt Driving System for Engine Accessories of auto-tensioning, the annex of transmission comprises generator and water pump, and the two is arranged in the left side of motor, and generator is installed on the engine cylinder-body by support (not shown).In Fig. 1, generator pulley 2 and water pump pulley 3 are driven by crank pulley 1 by a poly Vbelt 4, a mechanical type automatic tensioner is set between generator pulley 2 and crank pulley 1, the Idle wheel 5 of described mechanical type automatic tensioner compresses the back side of described poly Vbelt 4, the working arm 6 of described mechanical type automatic tensioner is swung around mounting points O, thereby the tension force of poly Vbelt 4 is automatically adjusted.
The tensioning mode of described mechanical type automatic tensioner has multiple, and this is known in the art.For example, Chinese patent publication number CN1495375A discloses a kind of belt tightener of compact structure, this stretcher has working arm, and the Idle wheel on this working arm contacts with the belt of institute's tensioning, and Idle wheel is tensioned under the effect of torsion spring and does rotation motion.
The layout of Belt Driving System for Engine Accessories of the present utility model is very compact, and with the engine compartment that is applicable to that the space is narrow and small, this is particularly useful for small displacement engine.
Preferably, the brachium of described working arm is less than 50mm.
Owing to adopted the mechanical type automatic tensioner, its Idle wheel 5 can automatically adjust to the tension force of poly Vbelt 4, also can the extension and the wearing and tearing of poly Vbelt 4 be compensated automatically, so the initial installation tension force of poly Vbelt is big need not in manual tensioning mode.Preferably, described initial installation tension force is between 200N～400N.By contrast, adopt the initial installation tension force of manual tensioning mode generally greater than 600N in the documents.
In the utility model, the mechanical type automatic tensioner is arranged between generator and the bent axle, therefore plays the effect of the cornerite that increases generator pulley 2 and crank pulley 1, and this helps to prevent belt slippage and improves transmission efficiency.Preferably, the cornerite of described generator pulley 2 is greater than 150 degree, and the cornerite of crank pulley 1 is greater than 180 degree.
The optimum organization design of working arm 6 length by above-mentioned tension force and bent axle cornerite and mechanical type automatic tensioner, make Belt Driving System for Engine Accessories of the present utility model obtain effective transmission (non-slip), and can keep the stable of belt tension in the phase in operating life; Owing to need not extra parts (for example, the actuator of idle pulley, stretcher etc.), therefore can adapt to the narrow engine compartment space of small vehicle motor.
In sum, in Belt Driving System for Engine Accessories of the present utility model, owing to adopted the mechanical type automatic tensioner, the installation tension force of belt (poly Vbelt) 4 can be arranged on relatively low level, has improved the working life of belt and each annex bearing; Behind belt operation certain hour, the extension of belt and wearing and tearing can be compensated automatically by the Idle wheel 5 of mechanical type automatic tensioner, need not manual adjustment continually, have improved the endurance quality of train; The distinctive damping function of Idle wheel 5 can absorb the vibration that motor is delivered to train, has reduced wheel and has tied up to the risk that occurs in the running skidding with noise, has promoted the dynamic performance of train; Because Belt Driving System for Engine Accessories of the present utility model is arranged in the same side (left side) of motor, make topology layout simple simultaneously, also help to reduce required space.
The description that the front is done the concrete exemplary of the utility model is for the purpose of illustration and description.The description of front is not wanted the utility model is restricted to disclosed precise forms, obviously, all is possible according to a lot of changes of above-mentioned instruction and variation.Selecting exemplary and being described is in order to explain certain principles of the present utility model and practical application thereof, thereby makes others skilled in the art can realize and utilize various exemplary of the present utility model and different choice form and modification.Scope of the present utility model is intended to be limited by the claims and the equivalent form of value thereof.
Claims (3)
1. a Belt Driving System for Engine Accessories is characterized in that,
Described Belt Driving System for Engine Accessories comprises crank pulley (1), generator pulley (2), water pump pulley (3), belt (4) and mechanical type automatic tensioner, described generator pulley (2) and water pump pulley (3) are driven by described crank pulley (1) by described belt (4)
Described belt (4) is a poly Vbelt; Described mechanical type automatic tensioner is arranged between described generator pulley (2) and the crank pulley (1), described mechanical type automatic tensioner comprises Idle wheel (5) and supports the working arm (6) of Idle wheel (5), described Idle wheel (5) compresses the back side of described poly Vbelt (4), thereby the tension force of poly Vbelt (4) is automatically adjusted;
Described motor is a mini engine, and the brachium of the working arm of described mechanical type automatic tensioner (6) is less than 50mm, and described belt (4) is spent greater than 150 for the cornerite of generator pulley (2), spends greater than 180 for the cornerite of crank pulley (1).
2. Belt Driving System for Engine Accessories according to claim 1 is characterized in that, the initial installation tension force of described belt (4) is between 200N～400N.
3. Belt Driving System for Engine Accessories according to claim 1 and 2 is characterized in that this Belt Driving System for Engine Accessories is arranged in the left side of motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206407790U CN201865764U (en) | 2010-12-03 | 2010-12-03 | Engine accessory belt transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206407790U CN201865764U (en) | 2010-12-03 | 2010-12-03 | Engine accessory belt transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201865764U true CN201865764U (en) | 2011-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206407790U Expired - Fee Related CN201865764U (en) | 2010-12-03 | 2010-12-03 | Engine accessory belt transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201865764U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949205A (en) * | 2015-12-10 | 2017-07-14 | 现代自动车株式会社 | Control the conveyer belt control device and method of the conveyer belt of motor vehicle driven by mixed power |
| CN111345732A (en) * | 2014-02-04 | 2020-06-30 | 创科实业有限公司 | Extractor cleaning machine |
-
2010
- 2010-12-03 CN CN2010206407790U patent/CN201865764U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111345732A (en) * | 2014-02-04 | 2020-06-30 | 创科实业有限公司 | Extractor cleaning machine |
| CN111345732B (en) * | 2014-02-04 | 2021-10-22 | 创科实业有限公司 | Extractor cleaning machine |
| CN106949205A (en) * | 2015-12-10 | 2017-07-14 | 现代自动车株式会社 | Control the conveyer belt control device and method of the conveyer belt of motor vehicle driven by mixed power |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20141203 |
|
| EXPY | Termination of patent right or utility model |