CN107654596A - The two-way tensioning apparatus of the big double damping structures of the free degree - Google Patents
The two-way tensioning apparatus of the big double damping structures of the free degree Download PDFInfo
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- CN107654596A CN107654596A CN201710797874.8A CN201710797874A CN107654596A CN 107654596 A CN107654596 A CN 107654596A CN 201710797874 A CN201710797874 A CN 201710797874A CN 107654596 A CN107654596 A CN 107654596A
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- stretcher
- damping
- pedestal
- bottom plate
- tensioning apparatus
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Classifications
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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
- F16H7/0829—Means for varying tension of belts, ropes, or chains with vibration damping means
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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
- F16H7/0829—Means for varying tension of belts, ropes, or chains with vibration damping means
- F16H7/0836—Means for varying tension of belts, ropes, or chains with vibration damping means of the fluid and restriction type, e.g. dashpot
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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
- F16H7/0829—Means for varying tension of belts, ropes, or chains with vibration damping means
- F16H7/0838—Means for varying tension of belts, ropes, or chains with vibration damping means of the dissipating material type, e.g. elastomeric spring
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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
- F16H7/0829—Means for varying tension of belts, ropes, or chains with vibration damping means
- F16H2007/084—Means for varying tension of belts, ropes, or chains with vibration damping means having vibration damping characteristics dependent on the moving direction of the tensioner
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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
- F16H2007/0842—Mounting or support of tensioner
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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
- F16H2007/0876—Control or adjustment of actuators
-
- 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
- F16H2007/0876—Control or adjustment of actuators
- F16H2007/0887—Control or adjustment of actuators the tension being a function of load
Abstract
The invention discloses a kind of two-way tensioning apparatus of the double damping structures of big free degree, the device includes：One pedestal, the pedestal have a pivoting device；One first stretcher, first stretcher can rotate around the pivoting centre of the pivoting device；One second stretcher, second stretcher can rotate around the pivoting centre of the pivoting device；One elastic damping device, the both ends of the elastic damping device are rotationally connected to first stretcher and second stretcher, are damped for producing spring force and being formed.The beneficial effects of the invention are as follows：The adaptation effect to four kinds of mode of operations of MGU motors can be greatly improved, a variety of different car moneys can be adapted to, moreover it is possible to meets to minimize light-weighted requirement.
Description
Technical field
The present invention relates to auto parts and components field, the two-way tensioning apparatus of the double damping structures of specifically a kind of big free degree,
It is applied to weak mixing power vehicle engine belt drive system more.
Background technology
Energy source of car utilization ratio require more and more higher in the case of, the weak mixed engine with start and stop technology increasingly into
For main flow, MGU motors are used to realize that the automobile of start and stop technology is typically necessary by belt driving.Work(possessed by MGU motors
It both can be engine output that it can be determined in itself, again can be hair such as motor and assist motor work is started
The kinetic energy of motivation changes into electric energy, is returned such as consumption of engine power as electrical power generators and in engine retard as energy
Receive motor work.So, in belt transmission drive system, just there are two driving sources：Crankshaft pulley and MGU electrical machine belt pulleys.When
When the two driving sources alternately switch or worked together（Such as assist motor pattern）, the receding side of belt on MGU motors both sides can be caused
It is switched fast with pilled-in selvedge, the variable quantity of Belt Length is very big.In order to ensure that whole belt driving transmission system is stable and effectively transports
OK, realize that the weak mixed engine of start and stop technology needs a kind of tensioning apparatus to ensure MGU motors in various patterns by belt driving
The pilled-in selvedge of both sides belts and slack list can in time switch and keep appropriate tension force when work or switching, prevent from skidding, avoid noise and
Drive transmission failure.
Automobile primary with MGU motors will have four kinds of mode of operations, be respectively：Operating mode of the MGU motors as startup motor,
Start motor mode；Operating mode of the MGU motors as generator, i.e. generator mode；Work of the MGU motors as assist motor
Condition, i.e. assist motor pattern；And operating mode of the MGU motors as energy regenerating motor, i.e. energy regenerating motor mode.These four
Operating mode has the characteristics of following：When the firstth, being transformed into startup motor mode from idle stop, very big startup can be produced and turned round
Square, belt can promote the stretcher of slack list during as generator mode quickly to be moved toward stretcher loading direction, this motion mould
Formula can increase pilled-in selvedge belt elongation under original generator mode, and pilled-in selvedge when making MGU motors as generator is when extremely short
It is interior to become slack list band section, if not installing automatic tensioner in the side, skidding is had, noise even drives the risk of failure.
When the secondth, being transformed into startup motor mode from idle stop, the belt of slack list can quickly promote this side to be tensioned under generator mode
Device moves toward stretcher loading direction, and the side stretcher quickly swings to its extreme position.Now the side stretcher needs larger
The sluggish motion of damping；And the pilled-in selvedge under generator mode can become slack list, this sideband section can be elongated, it is necessary to this side stretcher
The elongation that belt can quickly be compensated just can guarantee that belt has enough tension force, now need this side stretcher damping relative
It is a little bit smaller, it just can guarantee that stretcher compensation speed.3rd, from motor mode or assist motor patten transformation is started to energy regenerating
During motor mode, belt can also promote as start electric motor mode or during assist motor pattern slack list stretcher toward stretcher
Loading direction quickly moves to its extreme position, and this motor pattern can also increase pilled-in selvedge belt variable quantity under this pattern, make MGU
Fluff as pilled-in selvedge band section when starting motor or assist motor, if not installing another automatic tensioner in the side, also can
There is the risk skidded or even drive failure.
Problem can be solved, it is necessary to be respectively mounted automatic tensioner in MGU motors both sides according to above-mentioned three kinds of work characteristics,
But equally exist technical barrier：1st, installing two automatic tensioners can cause cost significantly to raise.2nd, when MGU motors are each
The moment being switched fast between operating mode, the elasticities of belt both sides can synchronizing moment exchange, and stretcher can have little time reaction and
Cause the tensioning short duration failure of belt, so that the transmission agency of belt is lost in a short time, have a strong impact on the safety of driving
The reliability of property and power.
Chinese patent literature CN105179619A was disclosed " a kind of two-way tensioning apparatus " on December 23rd, 2015, bag
Include：Pedestal, including outer are provided with the installation of side-sway arm mounting seat, the first belt pulley mounting seat and the first flat spring location division
Groove；Include the damping mechanism of damped ring, spring base and at least two sections helical springs, be arranged in mounting groove；Footstock, including annular
Stopper slot and be arranged on stopper slot outer device mounting seat, stopper slot is engaged with mounting groove so that damping mechanism to be closed
In mounting groove；Side-sway arm fixed mechanism；Side-sway arm, one end is rotated by side-sway arm fixed mechanism and side-sway arm mounting seat to be connected
Connect, the other end is provided with the second belt pulley mounting seat and the second flat spring location division；First belt pulley；Second belt pulley；Plate bullet
Spring, both ends are engaged with the first flat spring location division and the second flat spring location division respectively.There is one in the technical scheme
A little technological deficiencies, such as structure are relative complex, and assembly work is longer；Rub, influence with side wall in the telescopic process of spring
Complete performance of elastic force etc..Leaf spring especially has been used in the program, has been limited two belt pulley mounting seats, can not be with wide-angle
Rotate, cause the adaptation faciostenosis of finished product, product is difficult to minimize lightweight, it is difficult to which the future development for meeting automobile industry becomes
Gesture.Meanwhile the power transfer mode in the program between two stretchers can not meet four kinds of mode of operations of MGU motors not
With requirement.
The content of the invention
The technical problem to be solved in the invention is that existing two-way tensioning device structure is complicated, and two-way tension effects are paid no attention to
Think, it is ineffective to the adaptation of four kinds of mode of operations of MGU motors, so as to provide a kind of the two-way of the double damping structures of big free degree
Tensioning apparatus, the adaptation effect to four kinds of mode of operations of MGU motors can be greatly improved, a variety of different cars can be adapted to
Money, moreover it is possible to meet to minimize light-weighted requirement.
In order to realize goal of the invention, the present invention adopts the following technical scheme that：A kind of double damping structures of big free degree it is two-way
Tensioning apparatus, the device include：
One pedestal, the pedestal have a pivoting device；
One first stretcher, first stretcher can rotate around the pivoting centre of the pivoting device；
One second stretcher, second stretcher can rotate around the pivoting centre of the pivoting device；
One elastic damping device, the both ends of the elastic damping device are rotationally connected to first stretcher and institute
The second stretcher is stated, is damped for producing spring force and being formed.
Preferably, also including one second damping unit, second damping unit is arranged at the pedestal, the first tensioning
Between device and the second stretcher, rotary damping can be produced relative to the pedestal, the first stretcher and the second stretcher.
Preferably, first stretcher includes the first bottom plate, first arm of force, the first tensioner arm and the first tensioning wheel,
First bottom plate rotatably arranged with the pivoting device of the pedestal, one end of the elastic damping device is rotatable
Ground is arranged at first arm of force, and first tensioning wheel is rotatablely arranged on first tensioner arm.
Preferably, second stretcher includes the second bottom plate, second arm of force, the second tensioner arm and the second tensioning wheel,
Second bottom plate rotatably arranged with the pivoting device of the pedestal, the other end of the elastic damping device can turn
Second arm of force is arranged at dynamicly, and second tensioning wheel is rotatablely arranged on second tensioner arm.
Preferably, the elastic damping device includes the Hookean spring for abutting both ends simultaneously and hydraulic damping member
Part.
Preferably, second damping unit is respectively arranged at the pedestal, the first bottom plate and the second bottom including several
Damping ring between plate.
As further preferred, the damping ring is high-abrasive material.
Preferably, second damping unit also include one be used for the pedestal, the first bottom plate and the second bottom plate it
Between produce and continue the elastic device of axial normal pressure.
As further preferred, the elastic device is wavy spring or butterfly spring.
The invention has the advantages that：
1st, the present invention not only meets the stable and effective work in each mode of the belt transmission drive system with MGU motors
Make, it can quickly improve the tension force and compensation pilled-in selvedge of slack list during MGU motors both sides slack list and pilled-in selvedge rapid translating
Become the change of Belt Length behind slack list, be able to ensure that whole belt transmission drive system is non-slip；It can be in MGU motors two
The belt on side wherein while during becoming pilled-in selvedge by slack list, there is provided enough damping forces come quickly increase the side
Power, the impact swung with sluggish stretcher is absorbed, reduces the vibration of system, noise and skidding；It can be on MGU motors both sides
Belt wherein while during becoming slack list by pilled-in selvedge, the quick elongation for compensating belt；Two stretchers can alone and
Damping is produced together, can reduce the dynamic load of stretcher swing speed and system, greatly optimizes the stationarity of system work.
2nd, the present invention associates two stretchers so that the power that slack list becomes pilled-in selvedge tensioner travel passes to pilled-in selvedge
Become the stretcher of slack list, accelerate pilled-in selvedge and become the speed that slack list stretcher is swung, considerably increase to Belt Length change
Compensation ability；Meanwhile pilled-in selvedge, when becoming slack list, the spring damping device for associating two stretchers produces larger damping, can be fast
Speed increase pilled-in selvedge tension force.
3rd, the present invention in by the pivoting centre of two stretchers be arranged to MGU electrical machine belt pulleys center, in different operating mould
Belt tension fluctuation is big when formula switches, and in the case that belt flexibility elongation is big, stretcher is possessed more preferable belt belt length and mends
Ability is repaid, the stretcher outside MGU electrical machine belt pulleys center is arranged on compared to stretcher pivoting centre, in same stretcher corner
Under can compensate for bigger belt length variable quantity, possess longer service life.
4th, in the present invention in addition to the elastic damping device of setting can provide damping for system, the second damping unit of setting
Extra lasting damping force can be provided, help the swing of attenuation factor stretcher when different mode switches, reduce belt tension
Change, maintain system stable.
5th, because two stretchers in this programme can rotate around 360 ° of the pivoting centre of pivoting device in theory, because
This two stretcher can possess great rotational freedom, therefore the present apparatus can actively minimize and lightweight, can
It is adapted in the different train layouts of different engines, the rational deployment and vehicle's center of gravity cloth that can aid in enging cabin
Office's optimization, the optimization for driving impression to vehicle have suitable help.
6th, two stretchers can turn to optional position, the fixing point of pedestal is arbitrarily set, fixed form can
To be fixed using simple and convenient bolt, installation effectiveness is improved.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is Fig. 1 parts explosion.
Fig. 3 is the structural representation of the first stretcher.
Fig. 4 is cross-sectional views of the Fig. 1 in the middle part of the second damping unit.
Fig. 5 is typical BSG trains schematic diagram.
Fig. 6 is the BSG train schematic diagrames under generator mode or energy regenerating motor mode.
Fig. 7 is in the BSG train schematic diagrames started under motor mode or assistant mode.
Wherein icon：Two-way tensioning apparatus 1, belt 2, crankshaft pulley 3, driving annex wheel 4, MGU motors 5, pedestal 20, base
Seat bottom plate 21, the first stretcher 30, the first bottom plate 31, first arm of force 32, the first tensioner arm 33, the first tensioning wheel 34, second
Tight device 40, the second bottom plate 41, second arm of force 42, the second tensioner arm 43, the second tensioning wheel 44, elastic damping device 50, spiral bullet
Spring 51, Hydraulic Elements 52, the first mounting hole 53, the second mounting hole 54, the second damping unit 60, the resistance of the first damping ring 61, second
It is Buddhist nun's ring 62, the 3rd damping ring 63, steel plate annulus 64, wavy spring 65, pretension annulus 66, pivoting device 70, hollow round table 71, pre-
Tight boss 72.
Embodiment
The present invention will be further described with embodiment below in conjunction with the accompanying drawings.
Embodiment as shown in Figure 1 and Figure 2, it is a kind of two-way tensioning apparatus of double damping structures, applies dynamic in certain light mixing
In the dynamical system of power automobile.This two-way tensioning apparatus 1 includes a pedestal 20；One first stretcher 30, the first stretcher 30 can
It is rotatably arranged in pedestal 20；One second stretcher 40, the second stretcher 40 are rotatablely arranged at pedestal 20；One elastic damping
Device 50, the both ends of elastic damping device 50 are rotationally connected to the first stretcher 30 and the second stretcher 40, are used for
Produce spring force and formed and damped；One second damping unit 60, it is arranged between pedestal, the first stretcher and the second stretcher,
Rotary damping can be produced relative to pedestal, the first stretcher and the second stretcher.
Pedestal 20 includes a pedestal bottom plate 21 and pivoting device 70, and pedestal bottom plate 21 is secured by bolts in engine support
Or on cylinder body.Pivoting device 70 is arranged at the end face of hollow round table 71 by a hollow round table 71 and one being arranged on pedestal bottom plate
Pretension boss 72 forms.First stretcher 30 and the second stretcher 40 can turn around the central shaft of the hollow round table 71 of pivoting device 70
It is dynamic.
First stretcher 30 includes the first bottom plate 31, first arm of force 32, the first tensioner arm 33 and the first tensioning wheel 44, and first
Bottom plate 31 rotatably arranged with the pivoting device 70 of pedestal 20, one end of elastic damping device 50 is rotatablely arranged at
First arm of force 32, the first tensioning wheel 34 are rotatablely arranged on the first tensioner arm 33.
As shown in figure 3, it is the structural representation of the first stretcher.First stretcher 30 is provided with one first bottom plate 31, in ring
An arm of force 32 and a tensioner arm 33 are provided with shape bottom plate 31 at an angle.The arm of force 32 passes through bolt and elastic damping device
50 one end is pivotally connected, and the first tensioning wheel 34 is secured by bolts on tensioner arm 33, the first tensioning wheel 34
It can be rotated freely movable about the bolt.
Elastic damping device 50 includes a helical spring 51, Hydraulic Elements 52, and Hydraulic Elements 52 are a piston-type hydro pressure drag
Buddhist nun's element, the both ends of the hydraulic dampening element are respectively equipped with the first mounting hole 53 and the second mounting hole 54.During assembling, helical spring
51 are installed between the first mounting hole 53 of Hydraulic Elements 52 and the second mounting hole 54 with precompressed state, the first stretcher 30
First arm of force 32 be pivotally connected with the first mounting hole 53 of Hydraulic Elements 52 by bolt, the second stretcher 40
Second arm of force 42 be pivotally connected with the second mounting hole 54 of Hydraulic Elements 52 by bolt.So it is able to
One stretcher 30 flexibly, have damping ground and be rotatably connected at the second stretcher 40, realize the first stretcher 10 and second
Stretcher 20 associates.
It is used for as shown in figure 4, the second damping unit 60 also includes a steel plate annulus 64, one in pedestal 20, the first bottom plate 31
And second produce the elastic device for continuing axial normal pressure between bottom plate 41, it is therefore preferable to wavy spring or butterfly spring, this reality
It is wavy spring 65 to apply example, and is used with unification pretension annulus 66.Second damping unit 60 is arranged at pedestal bottom plate including 3
21st, the first damping ring 61 between the first bottom plate 31, the second bottom plate 41 and steel plate annulus 64, the damping of the second damping ring the 62, the 3rd
Ring 63, especially, damping ring are high-abrasive material.
The assembly relation of damping ring and pedestal 20, the first bottom plate 31 and the second bottom plate 41 is：The pedestal bottom plate 21 of pedestal 20
It is installed on engine support or body, the first damping ring 61 is installed on the first bottom plate of the stretcher 30 of pedestal bottom plate 21 and first
Between 31；Second damping ring 62 be installed on the first stretcher 30 the first bottom plate 31 and the second stretcher 40 the second bottom plate 41 it
Between；3rd damping ring 63 is installed between the second bottom plate 41 of the second stretcher 40 and steel plate annulus 64；Wavy spring 65 is installed
Between steel plate annulus 64 and pretension annulus 66；Pretension annulus 66 is installed on the pretension of pivoting device 70 in an interference fit
On boss 72.The course of work of second damping unit 60 is as follows：When the second damping unit 60 assembling after the completion of, wavy spring 65 with
Precompressed state is installed in damping unit 60, and lasting pretension is produced between pedestal bottom plate 21 and pretension annulus 66
Power；When stretcher is swung, damping ring can relative to the first stretcher 30 the first bottom plate 31 and the second stretcher 40 second
Bottom plate 41 rotates, and produces the sassafras resistance that rubs under the pretightning force effect of wavy spring 65 and form frictional damping.Wavy spring 65 can
The change of each damping ring thickness upon wear is compensated, continues to provide lasting normal pressure.
It is illustrated in figure 5 a typical FEAD system（Front end accessory drive system）Train layout when static, should
System has crankshaft pulley 3, belt 2, by driving annex wheel 4（Such as air-conditioning belt wheel）, 1 group of MGU motors 5 and two-way tensioning apparatus
Ensure that whole system tensioning in different modes and belt compensation require by two-way tensioning apparatus 1 into during, work so that be
System can stably be run.
When under generator mode as shown in Figure 6 or energy regenerating motor mode, the two-way work of tensioning apparatus 1 of the present invention
It is as follows to make process：MGU motors are active member, and MGU motors left side belt is pilled-in selvedge, and right side belt is slack list.At this moment, second
Second tensioning wheel 44 of tight device 40 is swung outward by the effect of pilled-in selvedge belt tension, at the same time first of the first stretcher 30
Bearing up pulley 34 should swing the reduction of belt band section tension force on the right side of compensation MGU inward.
When under startup motor mode as shown in Figure 7 or assistant mode, the two-way course of work of tensioning apparatus 1 of the present invention
It is as follows：MGU motors are passive device, and MGU motors left side belt is slack list, and right side belt is pilled-in selvedge.At this moment, the first stretcher 30
The first tensioning wheel 34 swung outward by the effect of pilled-in selvedge belt tension, at the same time the first tensioning wheel 34 of the first stretcher 30
The reduction of belt band section tension force on the right side of compensation MGU should be swung inward.
The above-mentioned course of work can during vehicle operation frequent switching, and switch time it is extremely short, this is resulted in
MGU motors both sides band section tension force slack list causes very big impact to system when being converted with pilled-in selvedge, influences the stability of system.In order to
Solve the above problems, should ensure that slack list become the first stretcher 30 during pilled-in selvedge the swing speed of the first tensioner arm 34 it is slow enough；Tightly
While the swing speed for becoming the second tensioner arm 43 of the second stretcher 40 during slack list is sufficiently fast.Best mode is exactly by first
The tight stretcher 40 of device 30 and second associates, and the present invention is exactly based on association band elastic damping device 50 by the first stretcher 30
It is associated with the second stretcher 40.Simultaneously in order to preferably improve the dynamic property of system, this two-way tensioning apparatus is additionally provided with
Second damping unit, attenuation factor vibration is helped, system is more smoothly operated.
Claims (9)
1. a kind of two-way tensioning apparatus of the double damping structures of big free degree, it is characterized in that, the device includes：
One pedestal, the pedestal have a pivoting device；
One first stretcher, first stretcher can rotate around the pivoting centre of the pivoting device；
One second stretcher, second stretcher can rotate around the pivoting centre of the pivoting device；
One elastic damping device, the both ends of the elastic damping device are rotationally connected to first stretcher and institute
The second stretcher is stated, is damped for producing spring force and being formed.
2. the two-way tensioning apparatus of the double damping structures of the big free degree according to claim 1, it is characterized in that：Also include one the
Two damping units, second damping unit are arranged between the pedestal, the first stretcher and the second stretcher, can be relative to
The pedestal, the first stretcher and the second stretcher produce rotary damping.
3. the two-way tensioning apparatus of the double damping structures of the big free degree according to claim 1 or 2, it is characterized in that：Described
One stretcher includes the first bottom plate, first arm of force, the first tensioner arm and the first tensioning wheel, first bottom plate rotatably arranged with
With on the pivoting device of the pedestal, one end of the elastic damping device is rotatablely arranged at first arm of force, institute
The first tensioning wheel is stated to be rotatablely arranged on first tensioner arm.
4. the two-way tensioning apparatus of the double damping structures of the big free degree according to claim 1 or 2, it is characterized in that：Described
Two stretchers include the second bottom plate, second arm of force, the second tensioner arm and the second tensioning wheel, second bottom plate rotatably arranged with
With on the pivoting device of the pedestal, the other end of the elastic damping device is rotatablely arranged at second arm of force,
Second tensioning wheel is rotatablely arranged on second tensioner arm.
5. the two-way tensioning apparatus of the double damping structures of the big free degree according to claim 1 or 2, it is characterized in that：The bullet
Property damping unit include abutting a Hookean spring and a hydraulic dampening element at both ends simultaneously.
6. the two-way tensioning apparatus of the double damping structures of the big free degree according to claim 1 or 2, it is characterized in that：Described
Two damping units include several damping rings being respectively arranged between the pedestal, the first bottom plate and the second bottom plate.
7. the two-way tensioning apparatus of the double damping structures of the big free degree according to claim 6, it is characterized in that：The damping ring
For high-abrasive material.
8. the two-way tensioning apparatus of the double damping structures of the big free degree according to claim 2, it is characterized in that：Second resistance
Buddhist nun's device also includes one and is used to produce the elasticity dress for continuing axial normal pressure between the pedestal, the first bottom plate and the second bottom plate
Put.
9. the two-way tensioning apparatus of the double damping structures of the big free degree according to claim 8, it is characterized in that：The elasticity dress
It is set to wavy spring or butterfly spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710797874.8A CN107654596A (en) | 2017-09-06 | 2017-09-06 | The two-way tensioning apparatus of the big double damping structures of the free degree |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710797874.8A CN107654596A (en) | 2017-09-06 | 2017-09-06 | The two-way tensioning apparatus of the big double damping structures of the free degree |
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| CN107654596A true CN107654596A (en) | 2018-02-02 |
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| CN201710797874.8A Pending CN107654596A (en) | 2017-09-06 | 2017-09-06 | The two-way tensioning apparatus of the big double damping structures of the free degree |
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| 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 |
| CN110230675A (en) * | 2019-05-20 | 2019-09-13 | 宁波丰茂远东橡胶有限公司 | A kind of bi-directional association formula tensioner apparatus |
| CN110388398A (en) * | 2019-07-25 | 2019-10-29 | 无锡市贝尔特胶带有限公司 | The coplanar helical spring in two-way automatic tensioner both ends |
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| US11629778B2 (en) * | 2020-07-20 | 2023-04-18 | Muhr Und Bender Kg | Belt tensioning device with a belt drive |
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Application publication date: 20180202 |