CN105864378A - Belt tensioning equipment of hybrid electric vehicle - Google Patents
Belt tensioning equipment of hybrid electric vehicle Download PDFInfo
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- CN105864378A CN105864378A CN201610216273.9A CN201610216273A CN105864378A CN 105864378 A CN105864378 A CN 105864378A CN 201610216273 A CN201610216273 A CN 201610216273A CN 105864378 A CN105864378 A CN 105864378A
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- stretcher
- belt
- generator
- tensioner arm
- arresting stop
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
- F16H7/12—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
- F16H7/1254—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means
- F16H7/1281—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means where the axis of the pulley moves along a substantially circular path
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0802—Actuators for final output members
- F16H2007/081—Torsion springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0863—Finally actuated members, e.g. constructional details thereof
- F16H2007/0874—Two or more finally actuated members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0889—Path of movement of the finally actuated member
- F16H2007/0893—Circular path
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0889—Path of movement of the finally actuated member
- F16H2007/0897—External to internal direction
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The invention relates to a conveying belt driving system mounted on an internal combustion engine which is provided with a reversible generator or a starting motor/generator, in particular to belt tensioning equipment of a hybrid electric vehicle. The belt tensioning equipment of the hybrid electric vehicle comprises a supporting disc, a first tensioning machine and a second tensioning machine, wherein the supporting disc is mounted at the front end of the starting motor/generator; the first tensioning machine and the second tensioning machine are mounted on the supporting disc; the two tensioning machines are similar in structure and each comprises a tensioning machine belt wheel and a tensioning arm; each tensioning machine belt wheel is mounted at one end of each tensioning arm; a pivot is arranged at the other end of each tensioning arm; each tensioning arm rotates around each pivot; each pivot is articulated with a shell; each shell and each tensioning machine belt wheel are positioned at the same side surface of each tensioning arm; a stopping device is arranged on each shell; each tensioning arm is provided with a check block matched with each stopping device.
Description
Technical field
The present invention relates to one be arranged on can reverse rotating electric generator, or start the feed belt drive system on the internal combustion engine of motor/generator, specifically a kind of hybrid vehicle belt tension equipment.
Background technology
Be published on December 14th, 2000 in patent DE19926615A1() in describe and a kind of have the tensioning apparatus for tractive force, containing two regulating wheels, the axis of oscillation of the tensioner arm of two of which regulating wheel overlaps with the drive shaft of driving pulley.This tensioning apparatus contains one for the flange shell supporting driving pulley bearing axle.The shortcoming of this device comprising drive shaft has two parts, and the bearing axle of driving pulley must be supported by flange shell, and this design requires dramatically increasing of overall axial length.
Describing a kind of tensioning apparatus containing two scroll wheels in patent US7530911B2 (being published on May 1st, 2009), drawn by spring force, a wheel can be relative to another slipping.Other several patents are directed to " dual arm tensioner ", comprise two tensioner arms being connected by a common spring.
A kind of tensioning apparatus is described in patent US 2013/0040770 (being published on February 14th, 2013), containing two regulating wheels, the axis of oscillation of the tensioner arm of two of which regulating wheel overlaps with the drive shaft starting motor/generator belt wheel, two regulating wheels are connected by a flexural spring, and the shell of circular stretcher can rotate around the central shaft starting motor/generator wheel.This device the big tensile force that is mainly on high cost and belt of shortcoming.
A kind of tensioning apparatus is described in patent US 8821328B2 (being published on September 2nd, 2014), containing two regulating wheels, the axis of oscillation of the tensioner arm of two of which regulating wheel overlaps with the drive shaft starting motor/generator belt wheel, and two regulating wheels are connected by a compression spring.The shortcoming of this device mainly needs the biggest tension force.
In known solution embodiment mentioned above, in order to make belt have sufficiently large tension force and supporting, stretcher is caused to need to provide relatively large tension force.It practice, the design of prior art consider the worst condition of both of which as calculate spring and damping basis, so generally tension force can be the highest, damping unit can be extremely complex.Additionally, the extremely firm infrastructure cost designed to adapt to big load is higher, these stretchers are the most expensive.
Summary of the invention
The present invention provides a kind of hybrid vehicle belt tension equipment making belt tension minimize and to reduce cost by simplifying design.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of for have can reverse rotating electric generator or start motor/generator internal combustion engine on feed belt drive system, this can reverse rotating electric generator or start motor/generator and have as starting motor and two kinds of functions of current generator, described feed belt drive system includes:
A kind of feed belt connecting and drive some axles wheel,
One at least can be to start motor mode, the startup motor/generator of generator mode both of which work,
A kind of can in the generator mode as drive wheel works with starting under motor mode as by the crankshaft pulley of drive wheel works,
What other were possible is driven annex wheel shaft,
First and second stretcher,
First stretcher is positioned at and enters the band section (rotation of crank wheel positive hour hands) starting motor/generator
Second stretcher is positioned away from starting the band section (rotation of crank wheel positive hour hands) of motor/generator
It is characterized in that:
First belt stretcher is designed to only be operated in generator mode, and second the stretcher wheel being positioned at pilled-in selvedge is placed in an optimum position as fixed idler,
Second belt stretcher is designed to only be operated in startup motor mode, and first stretcher wheel is treated as a fixed idler in pilled-in selvedge, is placed in a position allowing minimum possible belt length to install.Minimum may belt length be calculated on the basis of considering name belt length, being specially this length and consider user data, space limits, make between two stretcher belt wheels distance minimum, and deduct name belt length tolerance, deduct in the case of not stressing ensure belt install allowance.
Two arresting stops are placed and limit the angular movement of first and second stretcher and make its position being less than above-mentioned fixed idler.
A kind of hybrid vehicle belt tension equipment, including the support plate being arranged on the front end starting motor/generator, and it is arranged on first stretcher on a support plate and second stretcher, two stretcher structures are similar, all include stretcher belt wheel, tensioner arm, stretcher belt wheel is arranged on one end of tensioner arm, the other end of tensioner arm is provided with pivot, tensioner arm pivots, it is characterized in that: a hinged housing on described pivot, housing and stretcher belt wheel are positioned at the same side of tensioner arm, housing is provided with arresting stop, tensioner arm is provided with the block matched with this arresting stop.
As preferably, described arresting stop is cylinder.
As preferably, outside described arresting stop, it is nested with a cushion pad being made up of damping material.Shock during stretcher arrival arresting stop (stop position) can be alleviated.It is made up of rubber or plastics elastomeric material.
A kind of hybrid vehicle belt tension equipment, this tension equipment includes:
Stretcher housing that there is cavity, that be bearing on startup motor/generator；
Two stretcher belt wheels, it loads belt in the belt pulley front and back of described startup motor/generator with pretightning force around direction along strap lug；
Producing the spring of the arc of pretightning force, it is contained in described cavity；
Tensioner arm in circular arc, it is movable in the plane of circular arc is bearing in described cavity, and on the one hand tensioner arm is loaded by the power of described spring and on the other hand support one of them stretcher belt wheel；This tension equipment also includes arresting stop, there is in arresting stop the duct of two disconnected arcs, the number of described tensioner arm and spring is two, two tensioner arms are arranged in the cavity of described stretcher housing, and the free end of each tensioner arm gos deep in a duct of arresting stop, stretcher housing has a centrally located fulcrum, and two described tensioner arms can move with this fulcrum for the center of circle along the cavity of stretcher housing.
As preferably, the end in described duct arranges cushion pad, and the inwall in duct is provided with one layer of wearing piece.
As preferably, two springs are separately positioned on a tensioner arm and provide pretightning force to each tensioner arm, and the other end of spring abuts with the outer rim of arresting stop.
As preferably, described stretcher housing being arranged tensioner arm is carried out spacing guide pad, tensioner arm gos deep in arresting stop duct through guide pad and spring, and self-lubricating bearing avoids tensioner arm and contacts with the direct of guide pad in being installed on guide pad.
As preferably, the profile of arresting stop is circular arc, and arresting stop constitutes described stretcher housing together with two in the housing of the semi arch of several fonts, and two described housings are positioned at arresting stop both sides, and described guide pad is installed on housing.
As preferably, first stretcher and second stretcher have different brachiums, different damping characteristics, different spring rates.Usual first stretcher has bigger damping than second stretcher.
In the present invention, the definition of first and second stretcher is:
First stretcher is positioned at and enters the band section (rotation of crank wheel positive hour hands) starting motor/generator
Second stretcher is positioned away from starting the band section (rotation of crank wheel positive hour hands) of motor/generator.
In the present invention, first stretcher is positioned at and enters the band section (rotation of crank wheel positive hour hands) starting motor/generator, in the generator mode as automatic tensioner, as fixed idler under starting motor mode.
Second stretcher is positioned away from starting the band section (rotation of crank wheel positive hour hands) of motor/generator, as automatic tensioner under starting motor mode, in the generator mode as fixed idler.
Described feed belt is V band or polywedge bet.This belt has the reinforcement cotton rope being made up of polyester, or other preferably have the cotton rope of more high Young's modulus, such as aramid fiber, glass fibre or carbon fiber.The design feature of tensioner arm can maximize with arresting stop contact surface, makes uniform force, more can bear bigger active force.
Tensioner arm shape can be made into nonlinear type so that around fulcrum angular displacement maximize.Two tensioning brachiums can be with Length discrepancy to meet the geometry requirement of two kinds of different modes.The spring rate of two stretchers and spring force can be unequal so that the power of two kinds of different mode needs minimizes.The damping characteristic of two stretchers can differ to meet the damping requirements of two kinds of different modes.
Following discussion stretcher working method in belt drives starter-generator (BSG) system:
This belt drive system (belt+stretcher+annex+idle pulley) can work under two kinds of different modes: as generator with as starting motor.Each pattern requires the automatic tensioner with different qualities.Consider especially start motor/generator wheel and take turns the two sections of band sections extended from this, we can say that the load difference being applied to two band sections under two kinds of different modes is the biggest: pilled-in selvedge in one mode can become slack list in another mode.Generally automatic tensioner avoids, when transmitting power, the required minimum tension that skids with holding receding side of belt for slack list.At the advancing side of belt, if needing guiding belt, generally use a fixing idle pulley.
Need what the difficulty overcome is？When engine mode is transformed into startup motor mode (BSG), the biggest starting torque can be produced, belt can promote stretcher back rapid movement, this motion adds the elongation of belt, the band section making startup wheel another side fluffs, if not installing another automatic tensioner, having skids even drives the risk of inefficacy.
From described above it is clear that starting the every while being required for a stretcher of motor/generator belt wheel: in one mode as a fixing stretcher as an automatic tensioner under another pattern.
The invention has the beneficial effects as follows:
1, when automatic tensioner is not in contact with arresting stop, its tension force provided is compared with prior art and has been reduced, it practice, the design of spring is through calculating the requirement meeting slack list.
2, compared to the identical stretcher being not provided with arresting stop, when first and second stretcher can bear bigger load when being positioned at stop position, actually when stretcher contact arresting stop, it becomes a fixing strong idle pulley to meet the pilled-in selvedge requirement under two patterns.
3, arresting stop limits the cornerite reduction of motor wheel and coupled wheel (such as the crank wheel of Fig. 1, compressor wheels), especially under the worst condition of start-up mode, can reduce the spring load of slack list under two patterns, it is to avoid skid.
In summary, the tension force that the design instructed according to the present invention makes two automatic tensioners provide is minimum.It practice, when acting on slack list, each stretcher is to avoid the minimum skidded to require that spring tension designs, and as automatic tensioner, when acting in pilled-in selvedge, one of them stretcher arrives stop position becomes a powerful idle pulley.
Accompanying drawing explanation
Fig. 1 is typical BSG belt drive system layout；
Fig. 2 is Fig. 1 shown device transmission agency in the generator mode；
Fig. 3 is Fig. 1 shown device transmission agency under starting motor mode；
Fig. 4 illustrates the working condition contrast of prior art BSG stretcher and BSG stretcher of the present invention；
Fig. 5-a, 5-b illustrate the concrete form of the stretcher of the present invention；
Fig. 6-a, 6-b, 6-c illustrate the details of arresting stop；
Fig. 7-a, 7-b, 7-c illustrate the second concrete form of the present invention；
Fig. 7 d illustrates the possible deformation of the one of first stretcher in the second concrete form；
Fig. 8 illustrates the details of arresting stop；
Fig. 9 illustrates the third concrete form of the present invention；
Figure 10 illustrates the 4th kind of concrete form of the present invention；
nullIn figure: FEAD(frontal attachments drives) system 1，Belt 2，Crankshaft pulley 3，Driven annex wheel 4，Start motor/generator belt wheel 5，First stretcher belt wheel 6，Second stretcher belt wheel 7，Arresting stop 8 and 9，Prop up support plate 10，Inner ring circumference 11，First stretcher 13 and second stretcher 14，Pivot 15 and 16，Tensioner arm 17 and 18，Pin 19 and 20，Polygon bolt head 21 and 22，Block 23，Bearing-surface 24，Cushion pad 25 and 27，Wearing piece 39a and 39b，Countersunk head hex bolts 26a and 26b，Bolt 29 and 28，Hole 31 and 30，Housing 32a and 32b，Spring mechanism 33，Cavity 34，Bolt 35a and 35b，Guide pad 36a and 36b，First stretcher F，Second stretcher S.
Detailed description of the invention
Below by specific embodiment, and combine accompanying drawing, technical scheme is described in further detail.Should be appreciated that the enforcement of the present invention is not limited to the following examples, any pro forma accommodation and/or the change of being made the present invention fall within scope.
Fig. 1 illustrates that typical FEAD(frontal attachments drives) system 1 uses belt 2 to connect crankshaft pulley 3, is driven annex wheel 4(such as compressor of air conditioner), startup motor/generator belt wheel 5, the first stretcher belt wheel 6 and the second stretcher belt wheel 7.
In order to understand the present invention, start explanation from the design phase below.
V belt translation starter-generator drive system: belt and the method for designing of stretcher；
This drive system design be divided into two steps: generator mode designs, and starts motor mode design.
Generator mode design (first design of tensioners), is shown in Fig. 2.
The people participating in belt drives design both knows about moment of torsion and the damping how calculating a stretcher, and from the beginning of the power that the geometric parameter of train layout and every axle relate to, generally these data are provided by automaker.In the first step designs, the second stretcher belt wheel 7 being positioned at pilled-in selvedge can be counted as a fixed idler and be arranged in a preferred location as arresting stop 9.Optimum position the most mentioned above is by automaker and/or space limit decision.In addition, optimum position needs consistent with static geometry equilbrium position.The load of two stretchers of design meets, and on the one hand avoids skidding and reducing the minimum of a value (referred to as skid threshold) of resonance, on the other hand consistent the most possible with static geometric layout demand.It practice, the ratio changing two stretcher load can reach any geometry equilbrium position.Maximum according to Belt Length in whole transmission life span and minimum of a value, the stretcher with selected fulcrum and tensioning brachium being positioned at slack list can move to maximum position from calculated minimum position.The purpose of first step design is in the case of given belt length, determines the position that the minimum possible position of the first stretcher belt wheel 6 is i.e. fixed as arresting stop 8.
Start motor mode design (second design of tensioners) and see Fig. 3；
In the first step being designed, the stop position (position that arresting stop 8 is fixed) of calculated first stretcher wheel is as the position of fixed idler, is the input data starting second design of tensioners of motor mode.Identical with the design process being set forth above, from the beginning of the power that the geometric parameter starting motor mode train layout and every axle relate to, the fulcrum selected according to second stretcher in new slack list and tensioning brachium, be calculated the minimum and maximum position of the second stretcher belt wheel.This is to start the output data that motor mode calculates.
Fig. 2 illustrates belt drives starter-generator (BSG) transmission system of generator mode.In order to be better understood from the present invention, as a example by an actual application, the calculating tension force of stretcher band wheel belt section is noted.As shown in generator mode, the second stretcher belt wheel 7 is forced to move to arresting stop 9 and work as a fixed idler due to the hubload effect more than 1452N that produced by this stretcher band section.As seen from Figure 3, the actually second stretcher belt wheel 7 can provide the hubload of 981N, and this is that it can be pulled to the reason of arresting stop 9 in the generator mode.
In the startup mode, such as Fig. 3, the first stretcher belt wheel 6 is forced to move to the position of arresting stop 8 due to the hubload effect more than 2290N that produced by this stretcher band section and works as a fixed idler.It can be observed from fig. 2 that the actually first stretcher belt wheel 6 can provide the hubload of 664N, this is that it can be pulled to the reason of arresting stop 8 under starting motor mode.
The summary of above computational methods
The output of first stretcher F: the minimum and maximum position of this stretcher belt wheel, the stop position (start-up mode input data) of second stretcher.
The output of second stretcher S: the minimum and maximum position of this stretcher belt wheel, from the stop position of first stretcher that the output of generator mode design obtains.
The brief description of the present invention: from above calculating, two important stop positions are defined.
Generator mode: when being operated in generator mode, second stretcher is forced arrival stop position to become a fixed idler by advancing side of belt tension force, and first stretcher will be as an automatic tensioner job.
Starting motor mode: when being operated in startup motor mode, first stretcher is forced arrival stop position to become a fixed idler by advancing side of belt tension force, and second stretcher will be as an automatic tensioner job.
Fig. 4 illustrates the working condition contrast of prior art BSG stretcher and BSG stretcher of the present invention.Explain that the following main distinction is necessary.
1, so-called " oscillating motion " it be converted to start-up mode from generator mode and can reduce the cornerite of crankshaft pulley.The angle change of the present invention is less than the angle change (angle a < a under prior art the same terms1).Being necessary to emphasize in the startup mode, crankshaft pulley cornerite is the important parameter avoiding belt creep, and reduction cornerite is intended to improve belt tension and avoids skidding.
2, in the generator mode, identical consideration (angle b <b can be by driving wheel1)
3, in general, in the worst case, the generator cornerite of the present invention can be bigger than the generator cornerite of prior art, because two stop positions can limit the distance between two stretcher wheels according to design standard.From the equilbrium position of static topology, the distance change between two stretcher wheels is limited by stop position.In addition, selecting a Belt Length to make the initial distance between two stretcher belt wheels minimize is a priority condition, and two stretcher belt wheels can be made not interfere to any working condition of another arresting stop from an arresting stop.
4, it is necessary to emphasize to have between first stretcher and second stretcher a critically important difference.First stretcher all works as an automatic tensioner in the part (generally higher than 90%) at high proportion of the whole working life of conveyer, it is necessary to be designed to be avoided that owing to bent axle vibration damping wheel and system mode resonate and produce the wide-angle motion of tensioner arm.This means that designing one has the installation cost being suitable for damping the highest.On the other hand, second stretcher only works as automatic tensioner at the finite part of whole working life.Starting the motor stage, the major requirement for second stretcher is characterised by: have limited damping, can quickly travel forward.Contrary, under starting motor mode, first stretcher should have high damping characteristic with reduce belt wheel to arresting stop 8 time acceleration.
From the foregoing, being divided into designing two portions and there is additional reasons: two stretchers are different, there are the biggest difference their range of movement and the time as automatic tensioner work.
Design standard according to known feed belt drive system (belt and stretcher) and the prior art of technical field, this system has been arranged on can reverse rotating electric generator, or start on the internal combustion engine of motor/generator, have as starting motor and two kinds of functions of current generator, usual two stretchers are taken turns by same common spring, same common damping unit connects, even there is identical brachium, thus lose the chance optimizing each stretcher according to the scope of application, so being lost cost-effective possibility.Additionally, the service life of transmission system can be affected, because it is contemplated that the load that under two kinds of functional mode harsh conditions, stretcher provides to belt.
From details described above it will be apparent that according to example, the tension force that the design of this invention makes two automatic tensioners provide minimizes.It practice, when acting on slack list, each stretcher is to avoid the minimum skidded to require that spring force designs, and as automatic tensioner, when acting in pilled-in selvedge, one of them stretcher arrives stop position becomes a powerful idle pulley.
Fig. 5-a, 5-b are the first concrete forms of hybrid vehicle belt stress of the present invention, and annular support plate 10 is installed in the front end starting motor/generator, and the diameter of the inner ring circumference 11 of a support plate adapts to start the size of motor/generator front end main body.Stretcher 13 and 14(is described as first and second automatic tensioner in fig. 1-3) it is to be each passed through pivot 15 and 16 by bolt 29 and 28 to be connected with hole 31 and 30 thus be fixed on support plate 10.Arresting stop 8 and 9 is separately fixed on housing 32a and 32b, and be fastened on a support plate 10 by bolt 26a and 26b and hole 27a and 27b, cushion pad 25a and 25b device is used for buffering impulsive force when tensioner arm 17 contacts with arresting stop 8 and 9 with 18 on arresting stop 8 with 9.Pin 19 and 20 makes stretcher 17 and 18 be in installation site so that installing belt 2.Stretcher 13 and 14 has identical internal structure, and such as Fig. 6-c, stretcher 14 is mainly made up of the spring mechanism 33 in housing 32b, tensioner arm the 18, second stretcher belt wheel 7 and cavity 34.The spring mechanism 33 of its middle shell 32b and tensioner arm 18 and inside thereof is connected by pivot 16, and the second stretcher belt wheel 7 is connected with tensioner arm 18 by bolt 35b.(in stretcher 13, the first stretcher belt wheel 6 is connected with tensioner arm 17 by bolt 35a).Housing and the second stretcher belt wheel 7 are positioned at the same side of tensioner arm, and housing is provided with the arresting stop 9 of cylindrical shape, and tensioner arm is provided with the block 23 matched with this arresting stop.A cushion pad 25b being made up of elastomeric material it is nested with outside arresting stop.
A support plate 10 is mounted with two main bodys of stretcher 13 and 14, has tensioner arm 17 and 18 to work around pivot 15 and 16 respectively.As shown in Fig. 5-a, two tensioner arms 17 and 18 are designed to the angular displacement maximization that arc makes the first stretcher belt wheel 6 and the second stretcher belt wheel 7 rotate to generator belt wheel 5.Additionally, the maximum displacement that two arresting stops 8 and 9 limit the first stretcher belt wheel 6 and the second stretcher belt wheel 7 moves away from generator belt wheel 5.Pin 19 and 20 can keep two stretchers to be in installation site, in order to the installation of belt 2, and two polygon bolt heads 21 and 22 are easy to dismounting and the tensioning of belt 2 of pin.Stretcher 13 and 14, according to the known technology manufacture in example patent, is compared with technology before, main difference is that the existence of stop position can make the full payload minimum of the pivot 15 and 16 of two stretchers.Fig. 6-a shows loading characteristic when arresting stop contacts with tensioner arm.Now, stretcher belt wheel is acted on by hubload F, and the bearing-surface 24 that arresting stop 8 contacts with tensioner arm with 9 produces reaction force R2, reduces the active force R1 produced at pivot 15 and 16, thus reduces the deflection at tensioner arm pivot 15 and 16.
Fig. 6-c shows that one makes tensioner arm and the maximized possible designs of arresting stop contact surface, and this design produces distributed reaction force and the deflection of tensioner arm and tensioner arm pivot is minimized.With stretcher not compared with the situation that arresting stop contacts, the tensioner arm as shown in Fig. 6-c and the detail view of the contact surface of arresting stop, big contact surface is that stretcher provides the ability bearing bigger load.It practice, such as Fig. 6-b, when not coming in contact, only provide reaction force R to hubload at tensioner pivot.The cushion pad 25b being made up of damping material can alleviate stretcher and the shock of arresting stop when a patten transformation to another pattern.
Embodiment 2
Fig. 7-a, 7-b, 7-c are the second concrete forms of hybrid vehicle belt stress of the present invention, comprising: have cavity, be bearing in the stretcher housing started on motor/generator；Two stretcher belt wheels, it loads belt in the belt pulley front and back of described startup motor/generator with pretightning force around direction along strap lug；Producing the spring of the arc of pretightning force, it is contained in described cavity；Tensioner arm in circular arc, it is movable in the plane of circular arc is bearing in described cavity, and on the one hand tensioner arm is loaded by the power of described spring and on the other hand support one of them stretcher belt wheel；This tension equipment also includes being arranged on arresting stop, there is in arresting stop the duct of two disconnected arcs, the number of described tensioner arm and spring is two, two tensioner arms are arranged in the cavity of described stretcher housing, and the free end of each tensioner arm gos deep in a duct of arresting stop, stretcher housing has a centrally located fulcrum, and two described tensioner arms can move (the tensioner arm direction of motion and scope are all constrained) along the cavity of stretcher housing with this fulcrum for the center of circle.
With arresting stop 81 as boundary, left-hand component is referred to as first stretcher, and right-hand component is referred to as second stretcher.The end in described duct arranges cushion pad, and the inwall in duct is provided with one layer of wearing piece.Two springs are separately positioned on a tensioner arm and provide pretightning force to each tensioner arm, and the other end of spring abuts with the outer rim of arresting stop.Arranging on described stretcher housing and tensioner arm is carried out spacing guide pad, tensioner arm gos deep in arresting stop duct through guide pad and spring, and self-lubricating bearing avoids tensioner arm and contacts with the direct of guide pad in being installed on guide pad.The profile of arresting stop is circular arc, and arresting stop constitutes described stretcher housing together with two in the housing of the semi arch of several fonts, and two described housings are positioned at arresting stop both sides and are installed in gripper shoe 40, and described guide pad is installed in gripper shoe.
Annular support plate 101 is installed in the front end starting motor/generator, and gripper shoe 40 is bolted in annular support plate 101 for carrying whole tensioner apparatus, and arresting stop 81 and guide pad 36a, 36b are bolted and are fixed on gripper shoe 40.Cushion pad 251a with 251b avoids tensioner arm and contacts with the direct of arresting stop in being placed in arresting stop 81 with wearing piece by interference fit, simultaneously work as the effect of buffering.Tensioner arm 171 and 181 is each passed through guide pad 36a and 36b, spring 331a and 331b and imports arresting stop 81, and spring limits pin 38a and 38b and is anchored on tensioner arm 171 and 181 for limiting the range of movement of spring and tensioner arm.Self-lubricating bearing 37a, 37b avoid tensioner arm and contact with the direct of guide pad in being respectively arranged in guide pad 36a, 36b, aerial wearing piece 39a with 39b being equipped with respectively of guiding at arresting stop avoids tensioner arm and contacts with the direct of arresting stop, significantly reduce mutual rubbing action, add the service life of part.Housing 321a and 321b is bolted in gripper shoe 40 and stretcher inner components is separated with external environment condition, reduces the external environment condition erosion to stretcher.Bolt 351a and 351b will be pressed into the stretcher belt wheel 61 and 71 of bearing 42 and be connected on tensioner arm 171 and 181, and dust cap 41 is fixed the one end being placed in bearing 42 and entered bearing for the dust granule that reduces in external environment condition etc. and affect the life-span of bearing by bolt 351a and 351b.
Two hexagonal holes 211 and 221 are for the ease of plugging pin 191 and 201 so that stretcher is in is easy to the position that belt 2 is installed, and for dismounting latch makes belt be in tensioning state.
In this form, the fulcrum 161 of two stretchers is placed in the center starting motor/generator wheel 5.Tensioner arm 171 and 181 is circular arc, and by sectional view A-A, the structure shown in B-B guides tensioner arm 171 and 181 to carry out circular motion within the specific limits, and Fig. 7-b shows the explosive view of this form.
Fig. 7 d illustrates the possible deformation of the one of first stretcher in example 2.In tensioner arm 171, it is provided with additional springs 331c, slip head end 251c can be promoted.Slip head end 251c is made up of metal or rigid plastics.During generator, head end 251c can not contact with cushion pad 251a, or can keep gentle touchdown, because spring 331c is not stressed.Only spring 331a bears belt tension in slack list.On the contrary, when starting some blow mode, belt strength promotes belt wheel 61 and tensioner arm 171 to move to the left side of arresting stop 81 rapidly.Counter-force is provided separately to the left side rotary motion first stage of arresting stop 81, spring 331a at tensioner arm 171, until head end 251c, by the compression of spring 331c, it is provided that an additional reaction force stops tensioner arm 171 to move to arresting stop 81.Two active forces of spring 331a and 331c are tensioner arm 171 retarded motions, and decrease and the impact on arresting stop 81 left side.
It is necessary to emphasize that the double-spring structure of this form allows first stretcher to be produced a counter-force by spring 331a in the generator mode, and under starting motor mode, bigger counter-force can be produced by spring 331a and 331c.
Fig. 8 illustrates the design of arresting stop.This embodiment is characterised by that arresting stop 81 limits the range of movement of tensioner arm 171 and 181.Additionally, compared to previous technology, according to the needs of difference in functionality pattern, two springs can bear different load, have different spring rates.
Embodiment 3
Fig. 9 shows the another kind of concrete form of the present invention.First stretcher 232 and second stretcher 242(are described as first and second stretcher in fig. 1-3) it is placed on the optimized position of train geometrical arrangements.Two arresting stops 82 and 92 are according to the exemplary arrangement of the present invention.On stretcher, the position of arresting stop arranges difference as desired.
Embodiment 4
Figure 10 shows the another kind of concrete form of the present invention.Belt 2 is a synchrome conveying belt (or timing belt), and belt wheel can be sheave or flat wheel.Same, in this case, two arresting stops will limit the motion of stretcher.This solution can use when starting power/torque big (close or larger than the 20KW) especially of motor/generator, simultaneously, the kinetic energy starting motor is not restricted to start engine, starts the milimeter number (micro-mixed power vehicle function) that motor can be also used for driving running car certain.
It is necessary to mention the material circumstance that a kind of generation transmits in generator two sideband section about two stretchers: they separate bent axle and the motion of generator.It practice, when crankshaft deceleration, the rotary inertia of generator tends to keeping former speed puller strap section a(Fig. 2) force first stretcher to move to arresting stop 8, this causes second stretcher to depart from arresting stop puller strap section b.In sum, the use of excess of stroke decoupling generator belt wheel (OAP) of band unilateral bearing or excess of stroke decoupling generator decoupler (OAD) can be removed, and cuts down the cost of whole transmission system further.
Embodiment described above is the one preferably scheme of the present invention, and the present invention not makees any pro forma restriction, also has other variant and remodeling on the premise of without departing from the technical scheme described in claim.
Claims (10)
1. one kind for have can reverse rotating electric generator or start motor/generator internal combustion engine on feed belt drive system, this can reverse rotating electric generator or start motor/generator and have as starting motor and two kinds of functions of current generator, described feed belt drive system includes:
A kind of feed belt connecting and drive some axles wheel,
One at least can be to start motor mode, the startup motor/generator of generator mode both of which work,
A kind of can in the generator mode as drive wheel works with starting under motor mode as by the crankshaft pulley of drive wheel works,
What other were possible is driven annex wheel shaft,
First and second stretcher,
First stretcher is positioned at and enters the band section (rotation of crank wheel positive hour hands) starting motor/generator,
Second stretcher is positioned away from starting the band section (rotation of crank wheel positive hour hands) of motor/generator,
It is characterized in that:
First belt stretcher is designed to only be operated in generator mode, and second the stretcher wheel being positioned at pilled-in selvedge is placed in an optimum position as fixed idler,
Second belt stretcher is designed to only be operated in startup motor mode, and first stretcher wheel is treated as a fixed idler in pilled-in selvedge, is placed in a position allowing minimum possible belt length to install,
Two arresting stops are placed and limit the angular movement of first and second stretcher and make its position being less than above-mentioned fixed idler.
2. a hybrid vehicle belt tension equipment, including the support plate being arranged on the front end starting motor/generator, and it is arranged on first stretcher on a support plate and second stretcher, two stretcher structures are similar, all include stretcher belt wheel, tensioner arm, stretcher belt wheel is arranged on one end of tensioner arm, the other end of tensioner arm is provided with pivot, tensioner arm pivots, it is characterized in that: a hinged housing on described pivot, housing and stretcher belt wheel are positioned at the same side of tensioner arm, housing is provided with arresting stop, tensioner arm is provided with the block matched with this arresting stop.
Hybrid vehicle belt tension equipment the most according to claim 2, it is characterised in that: described arresting stop is cylinder.
Hybrid vehicle belt tension equipment the most according to claim 2, it is characterised in that: it is nested with a cushion pad being made up of damping material outside described arresting stop.
5. a hybrid vehicle belt tension equipment, this tension equipment includes:
Stretcher housing that there is cavity, that be bearing on startup motor/generator；
Two stretcher belt wheels, it loads belt in the belt pulley front and back of described startup motor/generator with pretightning force around direction along strap lug；
Producing the spring of the arc of pretightning force, it is contained in described cavity；
Tensioner arm in circular arc, it is movable in the plane of circular arc is bearing in described cavity, and on the one hand tensioner arm is loaded by the power of described spring and on the other hand support one of them stretcher belt wheel；
It is characterized in that: this tension equipment also includes arresting stop, there is in arresting stop the duct of two disconnected arcs, the number of described tensioner arm and spring is two, two tensioner arms are arranged in the cavity of described stretcher housing, and the free end of each tensioner arm gos deep in a duct of arresting stop, stretcher housing has a centrally located fulcrum, and two described tensioner arms can move with this fulcrum for the center of circle along the cavity of stretcher housing.
Hybrid vehicle belt tension equipment the most according to claim 5, it is characterised in that: the end in described duct arranges cushion pad, and the inwall in duct is provided with one layer of wearing piece.
Hybrid vehicle belt tension equipment the most according to claim 5, it is characterised in that: two springs are separately positioned on a tensioner arm and provide pretightning force to each tensioner arm, and the other end of spring abuts with the outer rim of arresting stop.
Hybrid vehicle belt tension equipment the most according to claim 5, it is characterized in that: arrange on described stretcher housing and tensioner arm is carried out spacing guide pad, tensioner arm gos deep in arresting stop duct through guide pad and spring, and self-lubricating bearing avoids tensioner arm and contacts with the direct of guide pad in being installed on guide pad.
Hybrid vehicle belt tension equipment the most according to claim 5, it is characterized in that: the profile of arresting stop is circular arc, arresting stop constitutes described stretcher housing together with two in the housing of the semi arch of several fonts, two described housings are positioned at arresting stop both sides, and described guide pad is installed on housing.
10. according to the hybrid vehicle belt tension equipment described in claim 2 or 5, it is characterised in that: first stretcher and second stretcher have different brachiums, different damping characteristics, different spring rates.
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| CN201610216273.9A CN105864378B (en) | 2016-04-07 | 2016-04-07 | Hybrid vehicle belt tension equipment |
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| CN201610216273.9A CN105864378B (en) | 2016-04-07 | 2016-04-07 | Hybrid vehicle belt tension equipment |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108153949A (en) * | 2017-12-14 | 2018-06-12 | 新疆金风科技股份有限公司 | The force calculation method and device of transmission belt in the drive component of unsymmetric structure |
| CN108869672A (en) * | 2018-08-20 | 2018-11-23 | 华南理工大学 | A kind of Double-hydraulic automatic tensioner for hybrid vehicle |
| CN109027154A (en) * | 2018-09-25 | 2018-12-18 | 义乌吉利发动机有限公司 | Clamping system and engine pack |
| CN109695677A (en) * | 2019-03-07 | 2019-04-30 | 河北工业大学 | A kind of automatic tensioner with gas-liquid power-increasing cylinder |
| CN110219952A (en) * | 2018-03-02 | 2019-09-10 | 舍弗勒技术股份两合公司 | Transmission belt tensioning device and belt transmission mechanism |
| CN111412257A (en) * | 2019-01-07 | 2020-07-14 | 上汽通用汽车有限公司 | Belt tensioner, belt drive system and automobile |
| CN111486203A (en) * | 2019-01-25 | 2020-08-04 | 长城汽车股份有限公司 | Belt tensioning mechanism |
| CN111550536A (en) * | 2020-06-10 | 2020-08-18 | 无锡永凯达齿轮有限公司 | Bidirectional linkage type automatic belt tensioning device |
| CN111734802A (en) * | 2019-03-25 | 2020-10-02 | 舍弗勒技术股份两合公司 | Belt tensioner |
| TWI753515B (en) * | 2019-08-06 | 2022-01-21 | 美商蓋滋公司 | Orbital tensioner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010046913A1 (en) * | 2000-05-17 | 2001-11-29 | Rapkin Alan E. | Dual spring tensioner |
| CN1602396A (en) * | 2001-11-01 | 2005-03-30 | 盖茨公司 | Damped accessory drive system including a motor/generator |
| CN101196138A (en) * | 2006-12-06 | 2008-06-11 | 奇瑞汽车有限公司 | Engine belt transmission wheel series |
| JP2012132467A (en) * | 2007-04-13 | 2012-07-12 | Mitsuboshi Belting Ltd | Auto-tensioner |
| CN104884842A (en) * | 2012-12-26 | 2015-09-02 | 利滕斯汽车合伙公司 | Orbital tensioner assembly |
-
2016
- 2016-04-07 CN CN201610216273.9A patent/CN105864378B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010046913A1 (en) * | 2000-05-17 | 2001-11-29 | Rapkin Alan E. | Dual spring tensioner |
| CN1602396A (en) * | 2001-11-01 | 2005-03-30 | 盖茨公司 | Damped accessory drive system including a motor/generator |
| CN101196138A (en) * | 2006-12-06 | 2008-06-11 | 奇瑞汽车有限公司 | Engine belt transmission wheel series |
| JP2012132467A (en) * | 2007-04-13 | 2012-07-12 | Mitsuboshi Belting Ltd | Auto-tensioner |
| CN104884842A (en) * | 2012-12-26 | 2015-09-02 | 利滕斯汽车合伙公司 | Orbital tensioner assembly |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108153949A (en) * | 2017-12-14 | 2018-06-12 | 新疆金风科技股份有限公司 | The force calculation method and device of transmission belt in the drive component of unsymmetric structure |
| CN110219952A (en) * | 2018-03-02 | 2019-09-10 | 舍弗勒技术股份两合公司 | Transmission belt tensioning device and belt transmission mechanism |
| CN108869672A (en) * | 2018-08-20 | 2018-11-23 | 华南理工大学 | A kind of Double-hydraulic automatic tensioner for hybrid vehicle |
| CN108869672B (en) * | 2018-08-20 | 2023-12-01 | 华南理工大学 | Double-hydraulic automatic tensioner for hybrid electric vehicle |
| CN109027154B (en) * | 2018-09-25 | 2022-04-12 | 浙江吉利控股集团有限公司 | Tensioning system and engine assembly |
| CN109027154A (en) * | 2018-09-25 | 2018-12-18 | 义乌吉利发动机有限公司 | Clamping system and engine pack |
| CN111412257A (en) * | 2019-01-07 | 2020-07-14 | 上汽通用汽车有限公司 | Belt tensioner, belt drive system and automobile |
| CN111486203A (en) * | 2019-01-25 | 2020-08-04 | 长城汽车股份有限公司 | Belt tensioning mechanism |
| CN109695677A (en) * | 2019-03-07 | 2019-04-30 | 河北工业大学 | A kind of automatic tensioner with gas-liquid power-increasing cylinder |
| CN109695677B (en) * | 2019-03-07 | 2023-12-05 | 河北工业大学 | Automatic tensioner with gas-liquid reinforcement cylinder |
| CN111734802A (en) * | 2019-03-25 | 2020-10-02 | 舍弗勒技术股份两合公司 | Belt tensioner |
| TWI753515B (en) * | 2019-08-06 | 2022-01-21 | 美商蓋滋公司 | Orbital tensioner |
| US11333223B2 (en) | 2019-08-06 | 2022-05-17 | Gates Corporation | Orbital tensioner |
| CN111550536A (en) * | 2020-06-10 | 2020-08-18 | 无锡永凯达齿轮有限公司 | Bidirectional linkage type automatic belt tensioning device |
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Inventor after: Jiang Chunlei Inventor after: Ven Inventor after: Wang Juncheng Inventor after: Yang Junqi Inventor after: Chen Jianghu Inventor before: Jiang Chunlei Inventor before: Ma Gong Inventor before: Wang Juncheng Inventor before: Yang Junqi Inventor before: Chen Jianghu |
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Address after: 315400 ce10, Far East Industrial City, Yuyao Economic Development Zone, Ningbo City, Zhejiang Province Patentee after: Zhejiang Fengmao Technology Co.,Ltd. Address before: 315400 ce10, Far East Industrial City, Yuyao Economic Development Zone, Ningbo City, Zhejiang Province Patentee before: Ningbo Fengmao Far-East Rubber Co.,Ltd. |