CN102644693A - Adjustment method for dynamic stiffness of rubber joint with liquid damping, and rubber joint - Google Patents
Adjustment method for dynamic stiffness of rubber joint with liquid damping, and rubber joint Download PDFInfo
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- CN102644693A CN102644693A CN2012101456474A CN201210145647A CN102644693A CN 102644693 A CN102644693 A CN 102644693A CN 2012101456474 A CN2012101456474 A CN 2012101456474A CN 201210145647 A CN201210145647 A CN 201210145647A CN 102644693 A CN102644693 A CN 102644693A
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Abstract
An adjustment method for the dynamic stiffness of a rubber joint with liquid damping, and the rubber joint, and the rubber joint comprises metal outer sleeves, a rubber joint body, a throttling channel adjustment device and other parts, wherein the specific structure is as follows: proper holes are arranged on the outer surface of the rubber joint body and pressed-installed with the metal outer sleeves on the outer surfaces thereof to form closed cavities, the cavities are arranged in the relative movement directions of the mandrel and the outer sleeve of the rubber joint body, and symmetrically distributed at the both sides of the axis of the rubber joint body, and the two cavities are connected via a throttling channel; and in this way, when the mandrel and the outer sleeve of the rubber joint perform a relative movement, the volume of one side of each of the cavities at the both sides of the mandrel is reduced, and the volume of the other side is increased, so that a liquid damping medium at the side with the reduced volume flows to the side with the increased volume via pores, and the liquid damping medium generates a damping force while passing through the throttling channel due to damping action. The size of the throttling channel can be changed via the adjustment device, so as to achieve the purposes of adjusting the damping force and obtaining the needed dynamic stiffness.
Description
Technical field
The present invention relates to the property regulation method and the device of the rubber absorber of a kind of rail vehicle and automobile, is a kind of sound ratio of rigidity regulating method and device that is used for rail vehicle and automobile carrying liqs damping rubber joint specifically; This method and device change the effect of rubber arthrosis assembly dynamic stiffness through at rubber arthrosis assembly set inside liquid container and adjustable passage to play.
Technical background
Rubber arthrosis is a kind of rubber absorber that is widely used in rail vehicle and automobile, in some cases, requires the quiet rigidity of rubber absorber little; Dynamic stiffness is big, and promptly the sound ratio of rigidity is big, and the pivoted arm node that uses with rail vehicle truck is example; When bogie moves in the straight line highway section,, require the pivoted arm node that big location dynamic stiffness can be provided in order to guarantee operation stability; And through bend the time,, require rubber arthrosis that little static stiffness is arranged again in order to guarantee the passing ability of bogie; But because the inherent characteristic of rubber material itself; The sound ratio of rigidity that rubber arthrosis can provide does not reach requirement, often need make system architecture become complicated by other component to reach usage requirement.
It is a kind of rubber absorber that is applied to rail vehicle and automobile that carrying liqs damping rubber joint is formed; Have the big characteristics of sound ratio of rigidity, but present product is after entrucking, its each item performance is fixing; Dynamic stiffness is to change along with the variation of running environment in running; And in actual moving process, by situation under require rubber arthrosis to form under some specific situation, will to reduce its dynamic rate, this point is not accomplished in existing carrying liqs damping rubber joint.
Therefore in order to satisfy the needs of rail vehicle and automobilism, being necessary to develop a kind of sound rigidity can regulate as required, to reach the carrying liqs damping rubber joint of rail vehicle and automobile usage requirement.
Summary of the invention
The objective of the invention is to change under specific circumstances the deficiency of its dynamic rate, propose a kind of adjustable carrying liqs damping rubber joint sound ratio of rigidity regulating method and device of sound stiffness variation that can make carrying liqs damping rubber joint to existing carrying liqs damping rubber joint.
The technology implementation scheme that purpose proposed according to invention is: a kind of carrying liqs damping rubber joint dynamic stiffness regulating method and rubber arthrosis; In rubber arthrosis, be provided with plural enclosed cavity; Be interconnected through throttling passage between enclosed cavity and the enclosed cavity, and the controlling device of control throttling passage area of passage, the size of regulating throttling passage through controlling device are set on throttling passage; To reach the size of regulating damping force, obtain required rubber arthrosis dynamic stiffness.
Further the technology implementation scheme is: described enclosed cavity is that outer surface is provided with two breach in rubber arthrosis overcoat intermediate portion; Be pressed with metal-coating outside one deck again at two breach outer surfaces; Make outer surface two breach in rubber arthrosis overcoat intermediate portion form two sealed hollow, and two sealed hollow are arranged on the relative radial motion direction with overcoat of rubber arthrosis mandrel, continuous between two sealed hollow through throttling passage; Like this when the mandrel of rubber arthrosis and rubber arthrosis overcoat do relative motion; Cavity one Side Volume of mandrel both sides reduces, and the opposite side volume increases, and impels the liquid resisting medium of the side that volume reduces to flow to the side that volume increases through throttling passage; When passing through throttling passage, liquid resisting medium, produces damping force owing to damping function; And axially have a center hole at rubber arthrosis mandrel core; Center hole passes throttling passage; Intersect with throttling passage is vertical, the controlling device of regulating the throttling passage area of passage is installed in center hole, throttling passage can change its size through controlling device; To reach the adjusting damping force, obtain required dynamic stiffness.
Further the technology implementation scheme is: described two sealed hollow are to be symmetrically distributed in rubber arthrosis axis both sides.
Rubber arthrosis according to a kind of carrying liqs damping rubber joint stiffness controlling device that said method proposed comprises metal-coating, rubber body and mandrel; Rubber arthrosis is enclosed within on the mandrel, and metal-coating is enclosed within again on the rubber body, is combined to form a kind of rubber arthrosis, it is characterized in that, in the rubber arthrosis set inside one rigidity controlling device is arranged; Described rigidity controlling device comprises that plural liquid container, liquid container and liquid container couple together through the adjustable passage; In the adjustable passage, be provided with throttle regulator; Can change the throttling size of adjustable passage through the adjusting throttle regulator; Realize becoming damping, thereby reach the purpose of regulating required rubber arthrosis dynamic stiffness.
The invention has the advantages that: through the liquid damping device that can regulate is set in rubber arthrosis, the inside rigidity of rubber arthrosis is adjusted, realized that the rubber arthrosis dynamic stiffness is adjustable; Can satisfy the service condition of vehicle fully; And simple in structure, easy to adjust, realize easily.
Description of drawings
Fig. 1 is the structural representation of one embodiment of the invention;
Fig. 2 is a rubber arthrosis part-structure schematic representation in the accompanying drawing 1;
Fig. 3 is a controlling device mandrel structural representation in the accompanying drawing 1;
Fig. 4 is that accompanying drawing 1 is regulated the area of passage schematic representation;
Fig. 5 is the structural representation of another embodiment of the present invention;
Fig. 6 is the structural representation of another embodiment of the present invention;
Fig. 7 is the structural representation of another embodiment of the present invention;
Fig. 8 is the structural representation side view of another embodiment of the present invention;
Fig. 9 is a rubber arthrosis part-structure schematic representation in the accompanying drawing 8
Figure 10 is a controlling device mandrel structural representation in the accompanying drawing 8.
Embodiment
To combine accompanying drawing and embodiment that the present invention is done further description below.
Can find out through accompanying drawing and the present invention relates to a kind of carrying liqs damping rubber joint dynamic stiffness regulating method and rubber arthrosis; In rubber arthrosis, be provided with plural enclosed cavity; Be interconnected through throttling passage between enclosed cavity and the enclosed cavity, and the controlling device of control throttling passage area of passage, the size of regulating throttling passage through controlling device are set on throttling passage; To reach the size of regulating damping force, obtain required rubber arthrosis dynamic stiffness.
Further the technology implementation scheme is: described enclosed cavity is that outer surface is provided with two breach in rubber arthrosis overcoat intermediate portion; Be pressed with metal-coating outside one deck again at two breach outer surfaces; Make outer surface two breach in rubber arthrosis overcoat intermediate portion form two sealed hollow, and two sealed hollow are arranged on the relative radial motion direction with overcoat of rubber arthrosis mandrel, continuous between two sealed hollow through throttling passage; Like this when the mandrel of rubber arthrosis and rubber arthrosis overcoat do relative motion; Cavity one Side Volume of mandrel both sides reduces, and the opposite side volume increases, and impels the liquid resisting medium of the side that volume reduces to flow to the side that volume increases through throttling passage; When passing through throttling passage, liquid resisting medium, produces damping force owing to damping function; And axially have a center hole at rubber arthrosis mandrel core; Center hole passes throttling passage; Intersect with throttling passage is vertical, the controlling device of regulating the throttling passage area of passage is installed in center hole, throttling passage can change its size through controlling device; To reach the adjusting damping force, obtain required dynamic stiffness.
Further the technology implementation scheme is: described two sealed hollow are to be symmetrically distributed in rubber arthrosis axis both sides.
Rubber arthrosis according to a kind of carrying liqs damping rubber joint stiffness controlling device that said method proposed comprises metal-coating, rubber body and mandrel; Rubber arthrosis is enclosed within on the mandrel, and metal-coating is enclosed within again on the rubber body, is combined to form a kind of rubber arthrosis, it is characterized in that, in the rubber arthrosis set inside one rigidity controlling device is arranged; Described rigidity controlling device comprises that plural liquid container, liquid container and liquid container couple together through the adjustable passage; In the adjustable passage, be provided with throttle regulator; Can change the throttling size of adjustable passage through the adjusting throttle regulator; Realize becoming damping, thereby reach the purpose of regulating required rubber arthrosis dynamic stiffness.
Embodiment one
Accompanying drawing 2 is the concrete structure of rubber arthrosis, mainly comprises rubber arthrosis overcoat 1, mandrel 2, elastic caoutchouc 3, has 2 circular grooves 10 that are used to adorn O-ring seals at the two ends on the surface of rubber arthrosis overcoat 1; On rubber arthrosis overcoat 1;, on mandrel 2, be provided with throttling passage 6 independent liquid container 5 is communicated with each other for the symmetry axis symmetrical position was provided with two with last independent liquid container 5 with the axis, throttling passage 6 communicates with mandrel endoporus 11 simultaneously; Mandrel endoporus 11 is an axial step shape blind hole; Hole step 12 is positioned at mandrel endoporus 11 and throttling passage 6 intersections, and mandrel endoporus 11 port part have screw thread 14, are used to assemble throttling passage adjusting axle 7; 14 places radially have set screw hole 15 at screw thread, are used to install Cock screw 8.
Accompanying drawing 4 throttling passages form principle; The torus knot circulation road is by the internal surface 20 at hole step 12 places of mandrel endoporus 11; The outer surface 22 at 16 places, pillow block rank of hole end surface 21 and adjusting axle 7; Axial end 23 cooperates the annular pass 53 that forms rectangular cross-sections, and the size in this throttling passage cross section is along with adjusting axle 7 axial move left and right and changing in the hole.
Working principle:The rubber arthrosis assembly in the course of the work; Overcoat and mandrel are done radially relative movement, see shown in the accompanying drawing 1, and the resisting medium in the liquid container of a side flows to the liquid container of the side that stretches by compression; Its flow path is that independent liquid container 5 flows into independent liquid container 24 down through throttling passage 6; When resisting medium is flowed through top and the bottom 18 of throttling passage 6,, do not produce effective damping force because the hole is enough big; Damping force mainly produces when flowing through throttling passage 25, and the big I of damping force is regulated through the size of regulating throttling passage 25.For the product that makes same model is fit to different working conditions, the big I of throttling passage 25 under the screw-thread fit effect, axially moves adjusting axle 7, thereby obtains the throttling passage sectional area of required damping force through swivel circulation road adjusting axle 7.
Embodiment two
Embodiment two is throttling passage constituted mode different (shown in accompanying drawings 5) with embodiment one difference; Embodiment one throttling passage is formed the passage of a square-section by the step in hole and the step of axle; Embodiment two throttling passage is made up of the slit 26 between the ball-shaped end of the ball-shaped end in mandrel hole 28 and adjusting axle 27; The spherical diameter of 28 ends, mandrel hole is identical with the spherical diameter of adjusting axle 27 ends; Axially move in mandrel hole 28 through adjusting axle 27, the gap between axle and the hole is changed, reach the purpose that damping is regulated.
Embodiment three
Embodiment three is that with embodiment one difference providing of damping force is not to be provided by throttling passage, but is provided by the restriction of adjusting axle upper channel, and the size of this restriction is adjustable simultaneously.
Accompanying drawing 6 has provided the enforcement figure of another scheme implementation example three of the present invention, and structure and embodiment one are similar, and difference is that adjusting axle 29 is the optical axis in the mandrel hole, and shaft end is not threaded; Increased a throttle orifice 30 on one's body 29 of adjusting axles, increased a spring 31 in the end of adjusting axle 29, on mandrel 2, increased a locating stud 32, prevented that adjusting axle from swinging in the mandrel hole; Throttle orifice 30 on the adjusting axle 29 is combined to form restriction with the throttling passage hole 32 on the mandrel 2, increases axial stop 54 in the outer end of adjusting axle 29 simultaneously, stops adjusting axle 29 to skid off the mandrel hole.
Embodiment's three working principles: resisting medium is flowed with adjusting axle 29 throttle orifice 30 downward independent liquid container own through the throttling passage 55 on the mandrel and 56 by independent liquid container; Wherein through restriction 33 and 34 positions for the generation damping force, the size of its damping force is regulated by the size of restriction.The Principles of Regulation of restriction: adjusting axle is pressed on the axial stop through spring; Make the throttle orifice 30 on the adjusting axle pass through dislocation formation restriction with the throttling passage hole 32 on the mandrel 2; Axial stop is to be installed in the tapped hole of 32 ends, throttling passage hole on the mandrel 2 through screw thread; Therefore restriction can axially move along with the axial motion of axial stop, regulates the size of restriction.Cooperating of axial groove 35 on locating stud 32 and the restriction adjusting axle, then can guarantee the circumferential position of the throttle orifice 30 on the adjusting axle.
Embodiment four
Accompanying drawing 7 has provided an alternative embodiment of the invention enforcement figure, can find out through accompanying drawing, and the present invention is a kind of rubber arthrosis assembly at set inside liquid container and adjustable passage, comprises rubber arthrosis overcoat 36, mandrel 37, elastic caoutchouc 38; Elastic caoutchouc 38 is enclosed within on the mandrel 37; Its characteristics are: outside rubber arthrosis overcoat 38, be with a metal-coating 39, rubber arthrosis press-fits in metal-coating 39; On rubber arthrosis overcoat 36 with the axis for the symmetry axis symmetrical position is provided with plural independent liquid container 40, each independent liquid container 40 is interconnected through the throttling passage 41 that is arranged on the mandrel; Adjusting axle 42 is located at mandrel 37 inside of rubber arthrosis, and adjusting axle 42 two ends are pressed with spring 43 respectively, and spring at one end is circumscribed with an adjustable stops 44; Adjustable stops 44 slides in the guide pad 45, and can be under external force along moving axially in the hole of guide pad; Guide pad 45 is fixed in the tapped hole of throttling passage 41 ends on the mandrel through screw thread.Seal with anti-leak through O-ring seals between the each several part.
Accompanying drawing 8 is the side sectional view of accompanying drawing 7.
Accompanying drawing 9 mainly comprises rubber arthrosis overcoat 36 for to be the concrete structure of rubber arthrosis, mandrel 37, elastic caoutchouc 38; Elastic caoutchouc 38 is enclosed within on the mandrel 37; Two ends on the surface of rubber arthrosis overcoat 36 have 2 circular grooves 46 that are used to adorn O-ring seals; For the symmetry axis symmetrical position is provided with several liquid container 47, on mandrel 37, through perforate liquid container 47 is communicated with mandrel endoporus 48 with the axis, mandrel endoporus 48 is an axial step shape blind hole; There is screw thread 49 mandrel endoporus 48 ends, are used to assemble the guide pad of adjustable dog.Opening the liquid container position, having an annular sulculus 50, under the cooperation of metal-coating, forming an annular damp channel along the rubber arthrosis outer surface.
Accompanying drawing 10 is the concrete structure of embodiment's four adjusting axles, and little step-like in shape two broad in the middle of axle has O shape seal groove 51 in part broad in the middle, and be provided with oil groove 52.
Working principle:The rubber arthrosis assembly in the course of the work, overcoat and mandrel are done radially relative movement, the resisting medium in the liquid container of a side flows to the liquid container of the side that stretches by compression; In needs dynamic antivibration power, when promptly dynamic rate was big, mandrel endoporus 48 staggered with mistake oil groove 52; Resisting medium can't pass through from here, and its flow path can only be for through annular sulculus 50, and resisting medium produces dynamic antivibration power when flowing through annular sulculus 50; Do not needing dynamic antivibration power, i.e. dynamic rate hour, the throttling passage adjusting axle is under the effect of external force; Axially move; Make mandrel endoporus 48 and cross the oil groove 52 formation passage that aligns because mandrel endoporus 48 is enough big with the sectional area of crossing oil groove 52, resisting medium thus passage through not producing damping force.After external force disappeared, under the effect of spring, the dynamic adjustments axle was got back to initial position again, closed once more through mandrel endoporus 48 and the passage of crossing oil groove 52, realized the automatic adjusting of dynamic antivibration power thus.
Claims (10)
1. carrying liqs damping rubber joint dynamic stiffness regulating method; It is characterized in that: in rubber arthrosis, be provided with plural enclosed cavity; Be interconnected through throttling passage between enclosed cavity and the enclosed cavity, and the controlling device of control throttling passage area of passage, the size of regulating throttling passage through controlling device are set on throttling passage; To reach the size of regulating damping force, obtain required rubber arthrosis dynamic stiffness.
2. carrying liqs damping rubber joint stiffness regulating method as claimed in claim 1; It is characterized in that: described enclosed cavity is that outer surface is provided with two breach in rubber arthrosis overcoat intermediate portion; Be pressed with metal-coating outside one deck again at two breach outer surfaces; Make outer surface two breach in rubber arthrosis overcoat intermediate portion form two sealed hollow, and two sealed hollow are arranged on the relative radial motion direction with overcoat of rubber arthrosis mandrel, continuous between two sealed hollow through throttling passage; Like this when the mandrel of rubber arthrosis and rubber arthrosis overcoat do relative motion; Cavity one Side Volume of mandrel both sides reduces, and the opposite side volume increases, and impels the liquid resisting medium of the side that volume reduces to flow to the side that volume increases through throttling passage; When passing through throttling passage, liquid resisting medium, produces damping force owing to damping function; And axially have a center hole at rubber arthrosis mandrel core; Center hole passes throttling passage; Intersect with throttling passage is vertical, the controlling device of regulating the throttling passage area of passage is installed in center hole, throttling passage can change its size through controlling device; To reach the adjusting damping force, obtain required dynamic stiffness.
3. carrying liqs damping rubber joint stiffness regulating method as claimed in claim 1 is characterized in that: described two sealed hollow are to be symmetrically distributed in rubber arthrosis axis both sides.
4. the rubber arthrosis of a carrying liqs damping rubber joint stiffness controlling device comprises metal-coating, rubber body and mandrel; Rubber arthrosis is enclosed within on the mandrel, and metal-coating is enclosed within again on the rubber body, is combined to form a kind of rubber arthrosis, it is characterized in that, in the rubber arthrosis set inside one rigidity controlling device is arranged; Described rigidity controlling device comprises that plural liquid container, liquid container and liquid container couple together through the adjustable passage; In the adjustable passage, be provided with throttle regulator; Can change the throttling size of adjustable passage through the adjusting throttle regulator; Realize becoming damping, thereby reach the purpose of regulating required rubber arthrosis dynamic stiffness.
5. rubber arthrosis as claimed in claim 4 is characterized in that, outside the rubber arthrosis overcoat, is with a metal-coating, and rubber arthrosis press-fits in metal-coating; Outside rubber arthrosis, put with the axis and be provided with plural independent liquid container for the symmetry axis symmetrical position; Each independent liquid container is interconnected through the throttling passage that is arranged on the mandrel; The throttling passage adjusting axle is located at the mandrel inside of rubber arthrosis, and is fixed by Cock screw; Seal with anti-leak through the shape seal ring between the each several part.
6. rubber arthrosis as claimed in claim 5 is characterized in that, has 2 circular grooves that are used to adorn O-ring seals at the two ends on the surface of rubber arthrosis overcoat; The mandrel endoporus is an axial step shape blind hole, and the hole step is positioned at mandrel endoporus and throttling passage intersection, and mandrel endoporus port part has screw thread, radially has set screw hole at the screw thread place.
7. rubber arthrosis as claimed in claim 4; It is characterized in that; Said throttling passage is made up of the slit between the ball-shaped end of the ball-shaped end in mandrel hole and adjusting axle, and the spherical diameter of mandrel bore ends is identical with the spherical diameter of adjusting axle end, axially moves in the mandrel hole through adjusting axle; Gap between axle and the hole is changed, reach the purpose that damping is regulated.
8. rubber arthrosis as claimed in claim 4 is characterized in that, said adjusting axle is the optical axis in the mandrel hole, and shaft end is not threaded; Originally increased a throttle orifice on one's body at adjusting axle, increased a spring in the end of adjusting axle, on mandrel, increased a locating stud, prevented that adjusting axle from swinging in the mandrel hole; Throttle orifice on the adjusting axle and the throttling passage hole on the mandrel are combined to form restriction, increase axial stop in the outer end of adjusting axle simultaneously, stop adjusting axle to skid off the mandrel hole.
9. rubber arthrosis as claimed in claim 4 is characterized in that, it is inner that adjusting axle is located at the mandrel of rubber arthrosis, and the adjusting axle two ends are pressed with spring respectively, and spring at one end is circumscribed with an adjustable stops; Adjustable stops slides in the guide pad, and can be under external force along moving axially in the hole of guide pad; Guide pad is fixed in the tapped hole of the throttling passage end on the mandrel through screw thread.
10. rubber arthrosis as claimed in claim 9 is characterized in that, is opening the liquid container position, has an annular sulculus along the rubber arthrosis outer surface, under the cooperation of metal-coating, forms an annular damp channel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210145647.4A CN102644693B (en) | 2012-05-11 | 2012-05-11 | Adjustment method for dynamic stiffness of rubber joint with liquid damping, and rubber joint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210145647.4A CN102644693B (en) | 2012-05-11 | 2012-05-11 | Adjustment method for dynamic stiffness of rubber joint with liquid damping, and rubber joint |
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| CN102644693A true CN102644693A (en) | 2012-08-22 |
| CN102644693B CN102644693B (en) | 2014-10-22 |
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| CN103925326A (en) * | 2013-01-15 | 2014-07-16 | 成业兴 | Piston available for adjusting soft and hard characteristics of damper |
| CN105051406A (en) * | 2013-03-25 | 2015-11-11 | 卡尔·弗罗伊登伯格公司 | Bearing |
| CN105370783A (en) * | 2015-12-01 | 2016-03-02 | 唐山轨道客车有限责任公司 | Snaking-resistive shock absorber, non-power bogie and rail vehicle |
| CN105501242A (en) * | 2015-12-01 | 2016-04-20 | 唐山轨道客车有限责任公司 | Rubber node, power bogie and rail vehicle |
| CN106347403A (en) * | 2015-07-21 | 2017-01-25 | 上海申通地铁集团有限公司 | Axle box node |
| CN108116440A (en) * | 2016-11-28 | 2018-06-05 | 中车大同电力机车有限公司 | A kind of hydraulic device of controlled elasticity connection stiffness |
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| CN103925326A (en) * | 2013-01-15 | 2014-07-16 | 成业兴 | Piston available for adjusting soft and hard characteristics of damper |
| CN105051406A (en) * | 2013-03-25 | 2015-11-11 | 卡尔·弗罗伊登伯格公司 | Bearing |
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| CN106347403A (en) * | 2015-07-21 | 2017-01-25 | 上海申通地铁集团有限公司 | Axle box node |
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