CN102686901A - Hydraulic damper - Google Patents
Hydraulic damper Download PDFInfo
- Publication number
- CN102686901A CN102686901A CN2010800586662A CN201080058666A CN102686901A CN 102686901 A CN102686901 A CN 102686901A CN 2010800586662 A CN2010800586662 A CN 2010800586662A CN 201080058666 A CN201080058666 A CN 201080058666A CN 102686901 A CN102686901 A CN 102686901A
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- China
- Prior art keywords
- cylinder
- guide portion
- spring
- spring guide
- centering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
- B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
- B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
- B60G15/062—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the spring being arranged around the damper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
- B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
- B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
- B60G15/062—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the spring being arranged around the damper
- B60G15/063—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the spring being arranged around the damper characterised by the mounting of the spring on the damper
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/04—Wound springs
- F16F1/12—Attachments or mountings
- F16F1/128—Attachments or mountings with motion-limiting means, e.g. with a full-length guide element or ball joint connections; with protective outer cover
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/12—Mounting of springs or dampers
- B60G2204/124—Mounting of coil springs
- B60G2204/1242—Mounting of coil springs on a damper, e.g. MacPerson strut
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Disclosed is a hydraulic damper (10) wherein a spring guide (30) is comprised of a cylindrical body (31) fit on the outer periphery of a damper cylinder (11); a centering guide portion (33) for centering the cylindrical body (31) with respect to the outer periphery of the damper cylinder (11) is formed on a part of the inner peripheral surface of the cylindrical body (31); and a spring guide portion (35) for guiding a suspension spring (13) via a narrow gap between the spring guide portion and the inner periphery of the suspension spring (13) is formed on a part of the outer peripheral surface of the cylindrical body (31).
Description
Technical field
The present invention relates to hydraulic buffer, especially relate to the hydraulic buffer in interior week of the spring guide guiding bearing spring of the periphery through being arranged at damper cylinder.
Background technique
As hydraulic buffer; As patent documentation 1 record; A kind of buffer is arranged, and it is equipped with bearing spring between damper cylinder and the piston rod that in this damper cylinder, slides, and this buffer possesses spring guide assembly body; This spring guide assembly body comprises: by the spring guide cylindraceous that hard resin constitutes, it has a plurality of opening portions that on week, separate proper spacing and extend vertically; With vibration absorber cylindraceous; It has a plurality of flanks that are made up of the elastomers such as rubber more soft than said spring guide on week; A plurality of flanks of said vibration absorber from the opening portion of said spring guide to than the periphery of this spring guide more under the outstanding state of foreign side, this vibration absorber is flush-mounted in the inboard of this spring guide and constitutes this spring guide assembly body.The said spring guide of said spring guide assembly body; There is micro-gap between in itself and said bearing spring; And the interior all state of contact with a plurality of flanks and the said bearing spring of said vibration absorber are arranged at this spring guide assembly body on the periphery of said damper cylinder or said piston rod.
Hydraulic buffer according to patent documentation 1 record; Owing to be so that all state of contact in flank such as the rubber of a plurality of softnesses and the bearing spring are flush-mounted on the periphery of damper cylinder (or piston rod), therefore; Utilize the shock absorption effect of flank; Can prevent the transverse vibration of bearing spring fully, and, also can prevent extensional vibration.
Technical paper formerly
Patent documentation
Patent documentation 1: TOHKEMY 2005-220948
Summary of the invention
The problem that invention will solve
But the hydraulic buffer of patent documentation 1 record is to use the buffer of the spring guide assembly body that is made up of two parts of on spring guide setting-in vibration absorber, and cost uprises.
In addition owing to make the flank that constitutes by rubber etc. of vibration absorber and contacting in interior week of bearing spring, so follow hydraulic buffer flexible stroke and flexible bearing spring can with the flank friction.Therefore, flank is paid the frictional force of bearing spring, might become with respect to the flexible resistance of hydraulic buffer to hinder its operability, or become and produce fricative reason.
Problem of the present invention is, a kind of hydraulic buffer is provided, and realizes the simplification of spring guide, and containment spring guide is paid the generation of the frictional force of bearing spring, utilizes the spring guide to bearing spring channeling conduct stably simultaneously.
The method that is used to deal with problems
First aspect present invention provides a kind of hydraulic buffer, in damper cylinder, inserts piston rod,
Between the part of giving prominence to of damper cylinder and piston rod, bearing spring is installed from damper cylinder,
Utilization is arranged at the spring guide of the periphery of damper cylinder; Interior all channeling conducts to bearing spring; In this hydraulic buffer; The spring guide is made up of the cylinder of sleeve in the periphery of damper cylinder; Be formed with in the part of the inner peripheral surface of this cylinder and make this cylinder carry out the centering guide portion of centering with respect to the periphery of damper cylinder, and, the part of the outer circumferential face of this cylinder be formed with and interior week of bearing spring between lid open micro-gap and guide the spring guide portion of this bearing spring.
The hydraulic buffer of the second aspect of invention; On the basis of the first aspect of inventing; In the end of bearing spring and be arranged between the spring supporting portion of damper cylinder the said cylinder of clamping, be formed with said centering guide portion at the inner peripheral surface of the forward end at least of this cylinder at the lip part that cardinal extremity possessed.
The hydraulic buffer of the third aspect of invention; On the basis of first or the second aspect of inventing; The cross section of the said cylinder of said spring guide is quadrilateral (dihedral); Interior all planes on tetragonal each limit of formation of this cylinder form the said centering guide portion with respect to the periphery of cylindric damper cylinder, and the outer circumferential face in tetragonal each bight of formation of this cylinder forms the said spring guide portion with respect to the interior week of bearing spring.
The hydraulic buffer of fourth aspect of invention, on the basis of the third aspect of invention, the terminal side on tetragonal each limit of formation of said cylinder offers slit portion, only forms said centering guide portion on interior all planes of the forward end on each limit of this cylinder.
The hydraulic buffer of the 5th aspect of invention; On the basis of invention first or second aspect; The cross section of the said cylinder of said spring guide is circular, at circumferential a plurality of positions of the circular inner peripheral surface of the formation of this cylinder, forms the said centering guide portion with respect to the periphery of cylindric damper cylinder; At circumferential a plurality of positions of the circular outer circumferential face of the formation of this cylinder, form said spring guide portion with respect to the interior week of bearing spring.
The hydraulic buffer of the 6th aspect of invention; On the basis aspect the invention the 5th; Form said centering guide portion at the terminal side of said cylinder and each inner peripheral surface of forward end, when the centering guide portion of terminal side and the centering guide portion of forward end are formed on from the end on observation of this cylinder in the circumferential mutually different position of this cylinder.
The hydraulic buffer of the 7th aspect of invention; On the basis aspect the invention the 5th or the 6th; The spring guide portion that forms at circumferential a plurality of positions of the circular outer circumferential face of the formation of said cylinder; Formation is along the axial rib shape of this cylinder, and the part that clips in the rib shape spring guide portion by adjacent of this cylinder offers slit portion.
The invention effect
(first aspect)
(a), be formed with and make this cylinder carry out the centering guide portion of centering with respect to the periphery of damper cylinder in the part of the inner peripheral surface of the cylinder that constitutes the spring guide.The spring guide in the centering guide portion as the part of the inner peripheral surface of cylinder, separates micro-gap with respect to the periphery of damper cylinder, even or do not separate the also just local contact in gap.Therefore, the spring guide is the outer periderm centering of damper cylinder, and will be reduced to irreducible minimum, whole such rigid body that constitutes one not as damper cylinder of spring guide with the area of contact of the periphery of damper cylinder.Thus; Even because the lateral load of bearing spring effect when when flexible, producing with vibration; The bearing spring transverse vibration and with the collision of the spring guide of spring guide, needn't worry that also its striking force is passed to damper cylinder in a big way from the spring guide, and produce bigger abnormal sound.
(b) in the part of the outer circumferential face of the cylinder that constitutes the spring guide, be formed with and interior week of bearing spring between separate micro-gap and guide the spring guide portion of this bearing spring.As the spring guide portion of the part of the outer circumferential face of cylinder, between the interior week of itself and bearing spring, separate micro-gap.Therefore; With the spring guide to the flexible stroke of following hydraulic buffer and the frictional force that flexible bearing spring is paid suppresses to be irreducible minimum; Can not hinder the flexible operability of hydraulic buffer, can utilize the spring guide bearing spring channeling conduct stably.In addition, also can reduce because the lateral load of bearing spring effect when when flexible, producing with vibration, be bearing spring transverse vibration and the abnormal sound (Crunch) that produced with the spring guide portion friction of spring guide.
(c) the spring guide is the spring guide that on a part, possesses centering guide portion and spring guide portion, and is simple in structure.
(second aspect)
(d) said spring guide is formed with the centering guide portion of above-mentioned (a) at the inner peripheral surface of the forward end of said cylinder.Utilize this centering guide portion, the spring guide is the outer periderm centering of damper cylinder 11, and will be reduced to irreducible minimum with the area of contact of the periphery of damper cylinder.
(the 3rd, eight, nine aspects)
(e) cross section of the said cylinder of said spring guide is a quadrilateral; Interior all planes on tetragonal each limit of formation of this cylinder form the said centering guide portion with respect to the periphery of cylindric damper cylinder, and the outer circumferential face in tetragonal each bight of formation of this cylinder forms the said spring guide portion with respect to the interior week of bearing spring.Therefore, constitute the spring guide, can realize above-mentioned (a)～(d) with simple quadrilateral cylinder.
(fourth aspect)
(f) terminal side on tetragonal each limit of formation of said cylinder offers slit portion, only forms on interior all planes of the forward end on each limit of this cylinder and states the centering guide portion to some extent.Therefore, make the lightweight of spring guide, can realize above-mentioned (e).
(the 5th aspect)
(g) cross section of the said cylinder of said spring guide is circular; Circumferential a plurality of positions at the circular inner peripheral surface of the formation of this cylinder form the said centering guide portion with respect to the periphery of cylindric damper cylinder, form the said spring guide portion with respect to the interior week of bearing spring at circumferential a plurality of positions of the circular outer circumferential face of the formation of this cylinder.Therefore, can constitute the spring guide by enough simple rounded cylindrical bodies, can realize above-mentioned (a)～(d).
(the 6th, ten aspects)
(h) form said centering guide portion at the terminal side of said cylinder and each inner peripheral surface of forward end, during from the end on observation of this cylinder this cylinder circumferentially each other different positions be formed with the centering guide portion of terminal side and the centering guide portion of forward end.Therefore, reduced the area of contact of periphery of each centering guide portion and damper cylinder of terminal side and the forward end of cylinder, and in a plurality of radiation directions, can prevent the toppling over of central shaft of cylinder with respect to the central shaft of damper cylinder.In addition, axial terminal side and forward end both sides along the inner peripheral surface of cylinder, when mold formed convex was formed with the cylinder of centering guide portion, it is easy that release property becomes.
(the 7th, ten on the one hand)
(i) in the formed spring guide portion in circumferential a plurality of positions of the circular outer circumferential face of the formation of said cylinder, constitute the axial rib shape along this cylinder, the part that clips in the adjacent rib shape spring guide portion of this cylinder offers slit portion.Therefore, make the lightweight of spring guide, can realize above-mentioned (g), (h) simultaneously.
Description of drawings
Fig. 1 is the whole half sectional view of expression embodiment's 1 hydraulic buffer;
Fig. 2 is the sectional view along the II-II line of Fig. 1;
Fig. 3 is the sectional view along the III-III line of Fig. 1;
Fig. 4 representes the spring guide, (A) is along the sectional view of the A-A line of (B), (B) is worm's eye view;
Fig. 5 is the whole half sectional view of expression embodiment's 2 hydraulic buffer;
Fig. 6 is the sectional view along the VI-VI line of Fig. 5;
Fig. 7 is the sectional view along the VII-VII line of Fig. 5;
Fig. 8 is the sectional view along the VIII-VIII line of Fig. 5;
Fig. 9 representes the spring guide, (A) is side view, (B) is longitudinal section;
Figure 10 is the plan view of Fig. 9;
Figure 11 is the worm's eye view of Fig. 9;
Figure 12 representes the spring guide, (A) is overall perspective view, (B) is the upper end side stereogram, (C) is the lower end side stereogram.
Embodiment
(embodiment 1) (Fig. 1～Fig. 4)
The rear wheel-side draft hitch of hydraulic buffer 10 formation automatic two-wheeled cycles etc., the piston rod 12 of insertion wheel side in the damper cylinder 11 of body side is equipped with bearing spring 13 between the part of giving prominence to from damper cylinder 11 of damper cylinder 11 and piston rod 12.Also can damper cylinder 11 be disposed at wheel side, piston rod 12 is disposed at body side.
In the upper end side of damper cylinder 11, be fixed with body side assembly 14, in the lower end side of piston rod 12, be fixed with wheel side assembly 15.On body side assembly 14, be provided with upper spring supporting portion 16, on wheel side assembly 15, be provided with lower spring supporting portion 17, the upper and lower end of bearing spring 13 is by upper spring supporting portion 16 and 17 supportings of lower spring supporting portion.The elastic force of bearing spring 13 absorbs the impact force that vehicle is accepted from the road surface.
With regard to hydraulic buffer 10, insert piston rod 12 in the inside of damper cylinder 11, be provided with piston 20 in the insertion end to damper cylinder 11 of piston rod 12, on this piston 20, be provided with piston valve device 21.Piston 20 with the internal separation of damper cylinder 11 is: take in the bar side room 22A of piston rod 12 and do not take in the piston side room 22B of piston rod 12.Fill working oil to bar side room 22A and piston side room 22B, and, with the upper space of piston side room 22B as air chamber 22C.
For spring guide 30,,, be formed with and make cylinder 31 carry out the centering guide portion 33 of centering with respect to the periphery of damper cylinder 11 in the part of the inner peripheral surface of this cylinder 31 like Fig. 2～shown in Figure 4.The centering guide portion 33 of the inner peripheral surface of cylinder 31 needs and can cylinder 31 be nested in the periphery of damper cylinder 11 with the Spielpassung state, therefore, has micro-gap or local the contact with the periphery of damper cylinder 11.
In addition, cylinder 31 is being formed in the tetragonal present embodiment, interior all plane shape on tetragonal each limit of formation of cylinder 31 are paired in the centering guide portion 33 of the periphery of cylindric damper cylinder 11.The cylinder 31 of present embodiment constitutes squares, is centering guide portion 33 (Fig. 3) with the circumferential central part on interior all planes on each limit of cylinder 31.
In addition; In the present embodiment; Along axial terminal side to the intermediate portion on tetragonal each limit of formation of cylinder 31 (except the part of the forward end on each limit of being formed with centering guide portion 33); Offer slit portion 34 (Fig. 2), only on interior all planes of the forward end on each limit of cylinder 31, form centering guide portion 33 (Fig. 3).
Like Fig. 2～shown in Figure 4; Spring guide 30 convex on the part of the outer circumferential face of cylinder 31 is formed with convex spring guide portion 35; This convex spring guide portion 35 and interior week of bearing spring 13 between separate micro-gap, have the guide surface 35A of this bearing spring 13 of guiding.
According to present embodiment, play following action effect.
(a), be formed with and make this cylinder 31 carry out the centering guide portion 33 of centering with respect to the periphery of damper cylinder 11 in the part of the inner peripheral surface of the cylinder 31 that constitutes spring guide 30.Spring guide 30 is with respect to the periphery of damper cylinder 11, and the centering guide portion 33 as the part of the inner peripheral surface of cylinder 31 separates micro-gap, even or do not separate the also just local contact in gap.Therefore, spring guide 30 is the outer periderm centering of damper cylinder 11, and the area of contact of the periphery of itself and damper cylinder 11 is reduced to irreducible minimum, and the integral body of spring guide 30 constitutes the rigid body of one not as damper cylinder 11.Thus; Even since bearing spring 13 when flexible when producing vibration the lateral load of effect; Bearing spring 13 transverse vibration and with 35 collisions of the spring guide portion of spring guide 30; Needn't worry that also its striking force is delivered to damper cylinder 11 in a big way from spring guide 30, and produce big abnormal sound.
(b) in the part of the outer circumferential face of the cylinder 31 that constitutes spring guide 30, be formed with and interior week of bearing spring 13 between separate the spring guide portion 35 of this bearing spring 13 of micro-gap guiding.As the spring guide portion 35 of the part of the outer circumferential face of cylinder 31, between the interior week of itself and bearing spring 13 across micro-gap.Therefore; The bearing spring 13 that stretches for the flexible stroke of following hydraulic buffer 10; The frictional force that spring guide portion 35 is paid suppresses to be irreducible minimum; Can not hinder the flexible operability of hydraulic buffer 10, can utilize 35 pairs of bearing springs 13 of spring guide portion stably to guide.In addition and since bearing spring 13 when flexible when producing vibration the lateral load of effect, also can reduce the abnormal sound (Crunch) that the spring guide portion 35 because of bearing spring 13 transverse vibration and spring guide 30 rubs and produces.
(c) spring guide 30 is the guide that on a part, possesses centering guide portion 33 and spring guide portion 35, and is simple in structure.
(d) above-mentioned spring guide 30 is formed with the centering guide portion 33 of aforementioned (a) at the inner peripheral surface of the forward end of above-mentioned cylinder 31.Utilize this centering guide portion 33, the periphery centering of spring guide 30 and damper cylinder 11, and the area of contact of the periphery of itself and damper cylinder 11 is reduced to irreducible minimum.
(e) above-mentioned spring guide 30 forms quadrilateral with the cross section of above-mentioned cylinder 31; Interior all planes on tetragonal each limit of formation of this cylinder 31; Formation is with respect to the above-mentioned centering guide portion 33 of the periphery of cylindric damper cylinder 11; The outer circumferential face in tetragonal each bight of formation of this cylinder 31 forms the above-mentioned spring guide portion 35 with respect to the interior week of bearing spring 13.Therefore, constitute spring guide 30, can realize above-mentioned (a)～(d) by simple quadrilateral cylinder 31.
(f) at the terminal side on tetragonal each limit of formation of above-mentioned cylinder 31, offer slit portion 34, only, form above-mentioned centering guide portion 33 on interior all planes of the forward end on each limit of this cylinder 31.Therefore, can make 30 lightweights of spring guide, and can realize above-mentioned (e).
(embodiment 2) (Fig. 5～Figure 12)
Embodiment 2 is with embodiment 1 difference, has adopted the spring guide 40 that replaces spring guide 30.
Like Fig. 6～shown in Figure 12, spring guide 40 is formed with convex in the part of the inner peripheral surface of this cylinder 41 and makes cylinder 41 carry out the convex centering guide portion 43 of centering with respect to the periphery of damper cylinder 11.The centering guide portion 43 of the inner peripheral surface of cylinder 41 needs and can cylinder 41 be nested in the periphery of damper cylinder 11 with the state of Spielpassung, therefore, separates micro-gap or local the contact with the periphery of damper cylinder 11.
Centering guide portion 43 needn't spread all over the axial total length of cylinder 41 and form, and also can on the inner peripheral surface of the axial arbitrary portions such as forward end at least of cylinder 41, form.
In addition, in cylinder 41 being designed to circular present embodiment, the circumferential a plurality of positions at the circular inner peripheral surface of the formation of cylinder 41 are formed with the centering guide portion 43 with respect to the periphery of cylindric damper cylinder 11.
In the present embodiment, a plurality of positions at the circumferentially spaced certain intervals of each inner peripheral surface of the terminal side of cylinder 41 and forward end in the present embodiment, are formed with terminal side centering guide portion 43A and forward end centering guide portion 43B in each four position.And, make four centering guide portion 43A of terminal side and four centering guide portion 43B of forward end, during from the end on observation of cylinder 41, this cylinder 41 circumferentially, the formation of staggering in the 45 degree different positions at interval that separate each other.
Like Fig. 6～shown in Figure 12; Spring guide 40 is formed with tubular spring guide portion 44 in the part of the outer circumferential face of cylinder 41 with convex, this tubular spring guide portion 44 possess and interior week of bearing spring 13 between separate micro-gap and guide the guide surface 44A of this bearing spring 13.
In cylinder 41 being designed to circular present embodiment; Circumferential a plurality of positions at the circular outer circumferential face of the formation of cylinder 41; Be at 4 positions in the present embodiment, form spring guide portion 44 (Fig. 6, Fig. 7, Fig. 9, Figure 12) with respect to the interior week of bearing spring 13.In the present embodiment, the axial rib shape that each spring guide portion 44 of cylinder 41 forms along cylinder 41, the part in that the rib shape spring guide portion 44 by adjacent of cylinder 41 clips offers slit portion 45.Slit portion 45 the inner peripheral surface of cylinder 41 axially, be arranged at the scope that is clipped by the centering guide portion 43B of the centering guide portion 43A of terminal side and forward end.
In the present embodiment; Each rib shape spring guide portion 44 is extended at axial terminal side to the intermediate portion along cylinder 41; The guide surface 44A of the guiding bearing spring 13 of spring guide portion 44 is arranged at the terminal side of cylinder 41, is constituted the attenuate tilted conical surface 44B of shape of front end linking to each other with guide surface 44A of spring guide portion 44 and be located at the intermediate portion of cylinder 41.The tilted conical surface 44B of spring guide portion 44 can not make the spring bar of bearing spring 13 hang over the front-end face of spring guide portion 44, around its guide surface 44A, guides swimmingly.
According to present embodiment, play following action effect.
(a), be formed with and make this cylinder 41 carry out the centering guide portion 43 of centering with respect to the periphery of damper cylinder 11 in the part of the inner peripheral surface of the cylinder 41 that constitutes spring guide 40.Spring guide 40 is with respect to the periphery of damper cylinder 11, separates micro-gap in the centering guide portion 43 as the part of the inner peripheral surface of cylinder 41, even perhaps do not separate the also just local contact in gap.Therefore, spring guide 40 is the outer periderm centering of damper cylinder 11, and will be reduced to irreducible minimum with the area of contact of the periphery of damper cylinder 11, and the integral body of spring guide 40 constitutes the rigid body of one not as damper cylinder 11.Thus; Even because the lateral load of bearing spring 13 effect when when flexible, producing with vibration; Bearing spring 13 transverse vibration and with 44 collisions of the spring guide portion of spring guide 40; Needn't worry that also its striking force is passed to damper cylinder 11 in a big way from spring guide 40, and produce bigger abnormal sound.
(b) in the part of the outer circumferential face of the cylinder 41 that constitutes spring guide 40, be formed with and interior week of bearing spring 13 between separate micro-gap and guide the spring guide portion 44 of this bearing spring 13.As the spring guide portion 44 of the part of the outer circumferential face of cylinder 41, open micro-gap at the interior weekly interval of itself and bearing spring 13.Therefore; For the flexible stroke of following hydraulic buffer 10 and flexible bearing spring 13; The frictional force that spring guide portion 44 is paid suppresses to be irreducible minimum, can not hinder the flexible operability of hydraulic buffer 10, can utilize 44 pairs of bearing springs 13 of spring guide portion stably to guide.In addition, the lateral load of effect when utilizing bearing spring 13 when flexible, to produce with vibration also can reduce the abnormal sound (Crunch) that the spring guide portion 44 because of bearing spring 13 teeters and spring guide 40 rubs and produces.
(c) spring guide 40 is the guide that on a part, possesses centering guide portion 43 and spring guide portion 44, and is simple in structure.
(d) above-mentioned spring guide 40 is formed with the centering guide portion 43 of aforementioned (a) at the inner peripheral surface of the forward end of above-mentioned cylinder 41.Utilize this centering guide portion 43, spring guide 40 is the outer periderm centering of damper cylinder 11, and will be reduced to irreducible minimum with the area of contact of the periphery of damper cylinder 11.
(e) above-mentioned spring guide 40 makes the cross section of above-mentioned cylinder 41 be circle; Circumferential a plurality of positions at the circular inner peripheral surface of the formation of this cylinder 41; Formation is with respect to the above-mentioned centering guide portion 43 of the periphery of cylindric damper cylinder 11; At a plurality of positions of the circular inner peripheral surface of the formation of this cylinder 41, form above-mentioned spring guide portion 44 with respect to the interior week of bearing spring 13.Therefore, constitute spring guide 40, can realize above-mentioned (a)～(d) with simple rounded cylindrical body 41.
(f) at the terminal side of above-mentioned cylinder 41 and each inner peripheral surface of forward end; Form above-mentioned centering guide portion 43; With the centering guide portion 43A of terminal side and the centering guide portion 43B of forward end, when being formed at the end on observation from this cylinder 41, in the circumferentially different position each other of this cylinder 41.Therefore, reduced the area of contact of periphery of each centering guide portion 43A, 43B and damper cylinder 11 of terminal side and the forward end of cylinder 41, and can prevent, the toppling over of the central shaft of cylinder 41 in a plurality of radiation direction with respect to the central shaft of damper cylinder 11.In addition, axial terminal side and the forward end both sides along the inner peripheral surface of cylinder 41, release property was easy when mold formed convex was formed with the cylinder 41 of centering guide portion 43A, 43B.
(g) in the formed spring guide portion 44 in circumferential a plurality of positions of the circular outer circumferential face of the formation of above-mentioned cylinder 41; Formation is along the axial rib shape of this cylinder 41; Part being clipped by the adjacent rib shape spring guide portion 44 of this cylinder 41 offers slit portion 45.Therefore, the lightweight of spring guide 40 can be realized, and above-mentioned (e), (f) can be realized.
More than, be described in detail embodiments of the invention according to accompanying drawing, but concrete structure of the present invention is not limited to this embodiment, do not break away from design alteration in the scope of aim of the present invention etc., be also contained among the present invention.
Utilizability in the industry
The present invention provides a kind of hydraulic buffer; It inserts piston rod in damper cylinder; Between the part of giving prominence to of damper cylinder and piston rod, bearing spring is installed from damper cylinder; Utilization is arranged at the spring guide of periphery of damper cylinder to interior all channeling conducts of bearing spring; In this hydraulic buffer; The spring guide is made up of the cylinder of sleeve in the periphery of damper cylinder, the part of the inner peripheral surface of this cylinder be formed with make this cylinder carry out with respect to the periphery of damper cylinder centering the centering guide portion and and interior week of bearing spring between separate micro-gap and guide the spring guide portion of this bearing spring to be formed at the part of the outer circumferential face of this cylinder.Thus, in hydraulic buffer, realize the simplification of spring guide, contained that the spring guide pays the generation of the frictional force of bearing spring, can utilize the spring guide to bearing spring channeling conduct stably simultaneously.
Symbol description
10, hydraulic buffer
11, damper cylinder
12, piston rod
13, bearing spring
30, spring guide
31, cylinder
33, centering guide portion
34, slit portion
35, turn to guide portion
40, spring guide
41, cylinder
43, centering guide portion
The centering guide portion of 43A, terminal side
The centering guide portion of 43B, forward end
44, spring guide portion
45, slit portion
Claims (11)
1. a hydraulic buffer inserts piston rod in damper cylinder,
Between the part of giving prominence to of damper cylinder and piston rod, bearing spring is installed from damper cylinder,
Utilization is arranged at the spring guide of the periphery of damper cylinder, to interior all channeling conducts of bearing spring,
This hydraulic buffer is characterised in that:
The spring guide is made up of the cylinder of sleeve in the periphery of damper cylinder,
Be formed with in the part of the inner peripheral surface of this cylinder and make this cylinder carry out the centering guide portion of centering with respect to the periphery of damper cylinder, and,
The part of the outer circumferential face of this cylinder be formed with and interior week of bearing spring between separate micro-gap and guide the spring guide portion of this bearing spring.
2. hydraulic buffer as claimed in claim 1 is characterized in that:
In the end of bearing spring and be arranged between the spring supporting portion of damper cylinder the said cylinder of clamping at the lip part that cardinal extremity possessed,
Inner peripheral surface in the forward end at least of this cylinder is formed with said centering guide portion.
3. according to claim 1 or claim 2 hydraulic buffer is characterized in that:
The cross section of the said cylinder of said spring guide is a quadrilateral,
Interior all planes on tetragonal each limit of formation of this cylinder form the said centering guide portion with respect to the periphery of cylindric damper cylinder,
The outer circumferential face in tetragonal each bight of formation of this cylinder forms the said spring guide portion with respect to the interior week of bearing spring.
4. hydraulic buffer as claimed in claim 3 is characterized in that:
Terminal side on tetragonal each limit of formation of said cylinder offers slit portion, only forms said centering guide portion on interior all planes of the forward end on each limit of this cylinder.
5. according to claim 1 or claim 2 hydraulic buffer is characterized in that:
The cross section of the said cylinder of said spring guide is circular,
At circumferential a plurality of positions of the circular inner peripheral surface of the formation of this cylinder, form said centering guide portion with respect to the periphery of cylindric damper cylinder,
At circumferential a plurality of positions of the circular outer circumferential face of the formation of this cylinder, form said spring guide portion with respect to the interior week of bearing spring.
6. hydraulic buffer as claimed in claim 5 is characterized in that:
Form said centering guide portion at the terminal side of said cylinder and each inner peripheral surface of forward end, when the centering guide portion of terminal side and the centering guide portion of forward end are formed on from the end on observation of this cylinder in the circumferential mutually different position of this cylinder.
7. like claim 5 or 6 described hydraulic buffers, it is characterized in that:
Spring guide portion in that circumferential a plurality of positions of the circular outer circumferential face of the formation of said cylinder form constitutes the axial rib shape along this cylinder, and the part that clips in the rib shape spring guide portion by adjacent of this cylinder offers slit portion.
8. hydraulic buffer as claimed in claim 3 is characterized in that:
Said cylinder constitutes square, with the circumferential central part on interior all planes on each limit of the cylinder of this square as said centering guide portion.
9. hydraulic buffer as claimed in claim 3 is characterized in that:
Said spring guide portion is extended existence at axial terminal side to the front end along said cylinder; The guide surface of the guiding bearing spring of this spring guide portion is set in the position of the terminal side of said cylinder to forward end, links to each other with the guide surface of this spring guide portion and constitute the attenuate tilted conical surface of shape of front end in the front end setting of said cylinder.
10. hydraulic buffer as claimed in claim 6 is characterized in that:
Circumferential four positions that separate certain intervals at each inner peripheral surface of the terminal side of said cylinder and forward end; Form centering guide portion and the centering guide portion of forward end of the terminal side of said cylinder, and four the centering guide portion of four centering guide portion and forward end that make this terminal side circumferentially are in the formation of staggering of 45 degree different positions at interval in this cylinder during from the end on observation of said cylinder.
11. hydraulic buffer as claimed in claim 7 is characterized in that:
Said each rib shape spring guide portion is extended at axial terminal side to the intermediate portion along said tubular to be existed; At the terminal side of said cylinder the guide surface of the guiding bearing spring of this spring guide portion is set, links to each other with the guide surface of this spring guide portion and constitute the attenuate tilted conical surface of shape of front end in the intermediate portion setting of said cylinder.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009290947A JP5426355B2 (en) | 2009-12-22 | 2009-12-22 | Hydraulic shock absorber |
| JP2009-290947 | 2009-12-22 | ||
| PCT/JP2010/059010 WO2011077768A1 (en) | 2009-12-22 | 2010-05-27 | Hydraulic damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102686901A true CN102686901A (en) | 2012-09-19 |
| CN102686901B CN102686901B (en) | 2014-07-09 |
Family
ID=44195320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080058666.2A Active CN102686901B (en) | 2009-12-22 | 2010-05-27 | Hydraulic damper |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5426355B2 (en) |
| CN (1) | CN102686901B (en) |
| WO (1) | WO2011077768A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104395635A (en) * | 2012-08-03 | 2015-03-04 | 萱场工业株式会社 | Shock absorber |
| CN104791408A (en) * | 2015-05-04 | 2015-07-22 | 安徽江淮汽车股份有限公司 | Shock absorber and automobile |
| CN110345187A (en) * | 2019-07-17 | 2019-10-18 | 太原理工大学 | A kind of compound Self-resetting energy-consuming shock absorber and its application method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7011481B2 (en) * | 2018-02-06 | 2022-02-10 | Ｋｙｂモーターサイクルサスペンション株式会社 | Buffer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003206975A (en) * | 2002-01-10 | 2003-07-25 | Showa Corp | Hydraulic shock absorber |
| CN1434904A (en) * | 2000-02-22 | 2003-08-06 | 株式会社昭和 | Dust cover attaching structure for hydraulic damper |
| CN1680733A (en) * | 2004-03-26 | 2005-10-12 | 株式会社昭和 | Bumping assembly for vihicle |
| JP2006138359A (en) * | 2004-11-10 | 2006-06-01 | Showa Corp | Vehicular hydraulic shock absorber |
| JP2007120675A (en) * | 2005-10-28 | 2007-05-17 | Showa Corp | Spring bearing device for hydraulic shock absorber |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2710982B2 (en) * | 1989-04-03 | 1998-02-10 | 本田技研工業株式会社 | Rear wheel suspension for motorcycles |
| JP4567987B2 (en) * | 2004-02-03 | 2010-10-27 | 株式会社ショーワ | Shock absorber for vehicle |
| JP4473105B2 (en) * | 2004-11-22 | 2010-06-02 | 株式会社ショーワ | Hydraulic shock absorber for vehicles |
| JP2006220162A (en) * | 2005-02-08 | 2006-08-24 | Kayaba Ind Co Ltd | Shock absorber |
-
2009
- 2009-12-22 JP JP2009290947A patent/JP5426355B2/en active Active
-
2010
- 2010-05-27 WO PCT/JP2010/059010 patent/WO2011077768A1/en active Application Filing
- 2010-05-27 CN CN201080058666.2A patent/CN102686901B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1434904A (en) * | 2000-02-22 | 2003-08-06 | 株式会社昭和 | Dust cover attaching structure for hydraulic damper |
| JP2003206975A (en) * | 2002-01-10 | 2003-07-25 | Showa Corp | Hydraulic shock absorber |
| CN1680733A (en) * | 2004-03-26 | 2005-10-12 | 株式会社昭和 | Bumping assembly for vihicle |
| JP2006138359A (en) * | 2004-11-10 | 2006-06-01 | Showa Corp | Vehicular hydraulic shock absorber |
| JP2007120675A (en) * | 2005-10-28 | 2007-05-17 | Showa Corp | Spring bearing device for hydraulic shock absorber |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104395635A (en) * | 2012-08-03 | 2015-03-04 | 萱场工业株式会社 | Shock absorber |
| US9873302B2 (en) | 2012-08-03 | 2018-01-23 | Kyb Corporation | Shock absorber |
| US10029531B2 (en) | 2012-08-03 | 2018-07-24 | Kyb Corporation | Shock absorber |
| CN104791408A (en) * | 2015-05-04 | 2015-07-22 | 安徽江淮汽车股份有限公司 | Shock absorber and automobile |
| CN110345187A (en) * | 2019-07-17 | 2019-10-18 | 太原理工大学 | A kind of compound Self-resetting energy-consuming shock absorber and its application method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5426355B2 (en) | 2014-02-26 |
| WO2011077768A1 (en) | 2011-06-30 |
| JP2011132987A (en) | 2011-07-07 |
| CN102686901B (en) | 2014-07-09 |
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Effective date of registration: 20211221 Address after: Ibaraki Patentee after: Hitachi astemo Co.,Ltd. Address before: Saitama Prefecture, Japan Patentee before: SHOWA Corp. |