CN100436850C - Sliding bearing - Google Patents
Sliding bearing Download PDFInfo
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- CN100436850C CN100436850C CNB038237482A CN03823748A CN100436850C CN 100436850 C CN100436850 C CN 100436850C CN B038237482 A CNB038237482 A CN B038237482A CN 03823748 A CN03823748 A CN 03823748A CN 100436850 C CN100436850 C CN 100436850C
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Abstract
A sliding bearing (1) includes an upper casing (3) which is made of polyacetal resin as a synthetic resin, has an annular surface (2), and serves as a first bearing body; a second bearing body (5) which is made of a synthetic resin, is superposed on the upper casing (3) so as to be rotatable about an axis (O), and has an synthetic resin-made annular surface (4) opposed to the annular surface (2); and a synthetic resin-made annular sheet (6) which is interposed between the annular surfaces (2) and (4) and slidably abuts against at least one of the upper casing (3) and the bearing body (5).
Description
Technical field
The present invention relates to a kind of sliding bearing, relate more specifically to a kind of sliding bearing of being made by synthetic resin, it is suitable for being bonded in the four-wheel car, as the overhang plain thrust bearing of structure (Macpherson type) of column support type.
Background technique
Usually, the column support type structure that overhangs mainly is used in the front-wheel of four-wheel car, and is configured to make a strut assemblies to combine with a helical spring, and described strut assemblies is equipped with a hydraulic damper, and this hydraulic damper is positioned at the outer cylinder body that forms with integrated spindle axis.In these overhang structure, there is such one type, its helical spring axis is with respect to the axis deflection versatilely of pillar, the piston rod of the vibration damper in the pillar carries out sliding smooth-goingly so that allow to be installed in.In another kind of structural type, helical spring is set by the axial alignment that makes helical spring axis and pillar.In any structure in these two kinds, thrust bearing is set between the assembling set and helical spring upper spring seat of vehicle body, so that when strut assemblies is rotated with helical spring, can rotate smooth-goingly.
In this thrust bearing, adopt rolling bearing or plastic sliding bearing that ball or needle roller are arranged.But rolling bearing has because microvibration and oscillating load and produce the possibility of fatigue failure in ball or needle roller, and has the problem that is difficult to keep smooth-going steering operation.The problem of sliding bearing is: its friction torque is than the friction torque height of rolling bearing, so the increase of thrust load can cause the increase of friction torque, this causes the heavier phenomenon of steering operation again; And the various combinations of depending on synthetic resin, can produce sticking-sliding phenomenon, and this gluing-sliding phenomenon can produce friction noise continually.
In addition, the oiling agent of for example lubricating grease and so on is put on sliding bearing, as long as there is this oiling agent as desired in sliding bearing, above-mentioned friction noise just can not take place.But, have such situation: after long-term the use,, just may produce frictional noise owing to oiling agent disappears or similar reason.
In addition, owing to constitute sliding bearing by two mutual stacked bearing suppories usually, therefore there is such problem:, must carry out the design and the manufacturing of these two bearing suppories again when not obtaining between the two bearings body under the situation of desired frictional behavior.
Should be noted that the problems referred to above not necessarily only occur over just and are installed on column support type and overhang in the plain thrust bearing in the structure, also can occur in the plain bearing similarly.
The present invention be directed to that above All aspects of design.Its objective is provides sliding bearing, increases even wherein promote load, and in fact friction torque does not change yet, thereby forms the slidingsurface that has low friction moment, and can keep this low coefficient of friction in long-term the use.On this slidingsurface, can not produce frictional noise, thereby be convenient to regulate the friction factor of friction factor to be optimized.When this sliding bearing being installed in column support type and overhanging in the structure as plain thrust bearing, it can guarantee to be equal to the smooth-going steering operation of rolling bearing situation, and can regulate the friction factor optimization reliably, thereby eliminates the flutter phenomenon of steering wheel.
Summary of the invention
Comprise according to sliding bearing of the present invention: one has the clutch shaft bearing body of an annular surface; One second bearing support, this second bearing support are stacked on the clutch shaft bearing body so that around the rotational of clutch shaft bearing body, and have an annular surface relative with the annular surface of clutch shaft bearing body; An and plastic ring segment, between two annular surfaces that this ring segment is set at, and abut against in the bearing support at least one slidably, wherein: described second bearing support have one on its annular surface integrally formed projection, described projection comprises at least: the interior annular protrusion in being arranged on all sides, be arranged on described in annular protrusion radially outer and with its concentric substantially outer annular protrusion, described sheet shaped piece is set between the annular surface of described projection and described clutch shaft bearing body, and abut against in the annular surface of described projection and described clutch shaft bearing body at least one slidably, on the annular surface of described second bearing support, be formed with a closed pockets that surrounds by described projection.
According to sliding bearing of the present invention, the plastic ring segment of at least one bearing support is set between two annular surfaces owing to abut against wherein slidably, thereby only by this sheet shaped piece of transposing, just can regulate the friction factor between the clutch shaft bearing body and second bearing support at an easy rate, thereby obtain best friction factor.In addition, when this sliding bearing is installed in column support type and overhangs in the structure as plain thrust bearing, can guarantee to be equal to the smooth-going steering operation of rolling bearing situation, can be convenient to optimally regulate friction factor, thereby eliminate the flutter phenomenon of steering wheel.
Preferably, ring segment is by comprising that at least a synthetic resin in polyamide resin, polyester resin, vistanex, polycarbonate resin and the fluororesin forms, and preferably has 0.05 millimeter to 1.0 millimeters thickness.
Preferably form this two bearing suppories by synthetic resin.Specifically, the two bearings body is by comprising that at least a synthetic resin in polyacetal resin, polyamide resin, polyester resin, vistanex, polycarbonate resin and the fluororesin forms.More particularly, the clutch shaft bearing body is formed by polyacetal resin, and second bearing support is by comprising that at least a synthetic resin in polyacetal resin, polyamide resin, vistanex and the fluororesin forms.
Preferably, the clutch shaft bearing body partly is suitable for partly locating flexibly to be assembled to second bearing support in the radial outer periphery of second bearing support in its radial outer periphery.In addition, between the two bearings body,, form a labyrinth structure at least one in the outer periphery of two bearings body part and inner periphery part from radially observing.With this labyrinth structure, can prevent satisfactorily that dust, muddy water and analog from entering the slidingsurface between the clutch shaft bearing body and second bearing support.
Second bearing support have one on its annular surface integrally formed projection, sheet shaped piece is set between the annular surface of projection and clutch shaft bearing body, and abuts against in the annular surface of projection and clutch shaft bearing body at least one slidably.Under the situation of the sliding bearing that comprises second bearing support with this projection, on the annular surface of second bearing support, be formed with a closed pockets by the projection encirclement, one fluid is suitable at least one in a filling closed pockets and the ring seal space, and this ring seal space is formed between the annular surface of annular sheet material and clutch shaft bearing body and corresponding to closed pockets.
According to this sliding bearing, can accept thrust load with cut mode by the fluid of filling at least one of closed pockets and enclosed space.Therefore, can form the slidingsurface of second bearing support by the flow surface that is filled at least one of closed pockets and enclosed space with respect to the annular surface of clutch shaft bearing body.Because the cause of the contact surface of fluid, this sliding bearing has extremely low friction factor.Therefore, even under the thrust load effect, still can realize that second bearing support is with respect to the relative movement of clutch shaft bearing body around the axis of clutch shaft bearing body with minimum surface friction drag.And, because this fluid is filled in by at least one of sealed groove that sheet shaped piece sealed that can also play the Sealing effect and seal space, so still can keep above-mentioned low coefficient of friction after long-term the use, and eliminate the frictional noise that produces at the slidingsurface place.And, even this sliding bearing is being installed to column support type when overhanging in the structure, also can guarantee to be equal to the steering operation of rolling bearing situation.
Therefore, be suitable for accepting thrust load as long as be filled at least one interior fluid of sealed groove and enclosed space.
Described projection is suitable for deflection deformation under the thrust load effect, so that in the fluid-filled volume of the fluid-filled volume of closed pockets and enclosed space diminishes.More particularly, projection is suitable for deflection deformation under the thrust load effect, so that at least one in the fluid-filled volume of the fluid-filled volume of closed pockets and enclosed space diminish, thereby make the fluid at least one of closed pockets and enclosed space produce internal pressure.
Being filled in fluid at least one in closed pockets and the enclosed space comprises and in lubricating grease and the lubricant oil at least one more preferably is made of silicone-based lubricating grease.
In a preferable example, projection comprise at least be arranged in interior annular protrusion on all sides, and in being arranged on the annular protrusion radially outer, with its concentric substantially outer annular protrusion.In another preferable example, projection comprises at least: the interior annular protrusion in being arranged on all sides, be arranged in annular protrusion radially outer and with its concentric substantially outer annular protrusion and radially extend and be connected in integratedly in the radial protrusion of corresponding all projectioies in annular protrusion and the outer annular protrusion.
Projection can also comprise: from radially observing, in being arranged between annular protrusion and the outer annular protrusion, with their concentric substantially at least one intermediate annular projectioies.If this projection also comprises this intermediate annular projection except interior annular protrusion and outer annular protrusion, even unbalanced loading is put on this sliding bearing along thrust direction, the uneven deflection of annular protrusion and outer annular protrusion in also can reducing.The sealing state (sealing state airtightly) that can advantageously keep in addition, closed pockets or enclosed space.Like this, can keep fluid to accept the ability of thrust load after long-term the use, fluid can not leak from closed pockets and enclosed space simultaneously.
In the present invention, can form second bearing support by the single-piece of integral body, perhaps second bearing support can comprise bearing member and be arranged on bearing member and the clutch shaft bearing body between so that with respect at least one the ring part in clutch shaft bearing body and the bearing member around the rotational of clutch shaft bearing body.At this, ring part has the annular surface relative with the plastic annular surface of clutch shaft bearing body and integrally formed projection on annular surface.Should be noted that according to second bearing support of the present invention and not to have the ring part of projection to form by bearing member.
In having second bearing support that comprises bearing member and these two parts of ring part, can form bearing member by polyacetal resin, and by comprising that at least a synthetic resin in polyamide resin, vistanex and the fluororesin forms ring part.
Preferably, ring part has another annular surface, another annular surface relatively is provided with annular surface with respect to the annular surface of clutch shaft bearing body, and on another annular surface integrally formed another projection, bearing member have another annular surface with ring part relative, slidably against the plastic annular surface of another projection.Perhaps, can and there be the ring part of projection to form by bearing member according to second bearing support of the present invention.
By bearing member with do not have under the ring part situation about forming of projection, the annular surface of bearing member can directly be resisted against another annular surface of ring part at second bearing support of the present invention.Perhaps, between another annular surface of the annular surface of bearing member and ring part, be provided with another ring segment.In addition, have at ring part under the situation of another projection, can between the annular surface of bearing member and another projection plastic another ring segment be set, another ring segment abuts against the annular surface of bearing member and at least one in another projection slidably.
Identical with above-mentioned ring segment, another ring segment can be by comprising that at least a synthetic resin in polyamide resin, polyester resin, vistanex, polycarbonate resin and the fluororesin forms, and can have 0.05 millimeter to 1.0 millimeters thickness.
Can on another annular surface of ring part, form another closed pockets that surrounds by another projection, and another fluid is suitable in another closed pockets of filling and another ring seal space at least one, and another ring seal space is formed between the annular surface and another ring segment corresponding to another closed pockets of bearing member.Preferably, another fluid that is filled in another closed pockets and another enclosed space is suitable for accepting thrust load.More preferably, another projection is suitable for deflection deformation under the thrust load effect, so that at least one in the fluid-filled volume of the fluid-filled volume of another closed pockets and another enclosed space diminishes.In addition, another projection is suitable for deflection deformation under the effect of thrust load, so that at least one in the fluid-filled volume of the fluid-filled volume of another closed pockets and another enclosed space diminish, thereby makes another fluid produce internal pressure.
Preferably, another fluid comprises at least one in lubricating grease and the lubricant oil, more preferably is made of silicone-based lubricating grease.
The same with above-mentioned projection, another projection comprises another the interior annular protrusion that is arranged on interior all sides at least, and be arranged on annular protrusion in another radially outer, with its concentric substantially another outer annular protrusion, perhaps comprise at least: annular protrusion in another in being arranged on all sides, be arranged on the radially outer of annular protrusion in another and with its concentric substantially another outer annular protrusion and another radial protrusion that radially extends and be connected to integratedly the corresponding all projectioies in the annular protrusion and another outer annular protrusion in another.
Another projection can also comprise: from radially observing, be arranged in another between the annular protrusion and another outer annular protrusion and with they concentric substantially at least one another intermediate annular projectioies.If another intermediate annular projection that this another projection also comprises except annular protrusion in another and another outer annular protrusion, even in thrust direction this sliding bearing is applied unbalanced load so, also can reduce the uneven deflection of another interior annular protrusion and another outer annular protrusion.The sealing state (sealing state airtightly) that can advantageously keep in addition, another closed pockets or another enclosed space.Like this, can also keep another fluid to accept the ability of thrust load after long-term the use, another fluid can not leak from another closed pockets or another enclosed space simultaneously.
In the present invention, first and second bearing suppories can have relative cylinderical surface mutually respectively.In the case, a plastic cylinder sheet can be set between this two cylinderical surface, the cylinder sheet abuts against at least one in two cylinderical surfaces slidably.
Preferably, the same with above-mentioned ring segment, the cylinder sheet is by comprising that at least a synthetic resin in polyamide resin, polyester resin, vistanex, polycarbonate resin and the fluororesin forms, and has 0.05 millimeter to 1.0 millimeters thickness.
Preferably, can be used as the overhang thrust slide bearing of structure of column support type in the four-wheel car according to sliding bearing of the present invention.But the present invention is not limited to this, can also be used for the structure of other pattern according to sliding bearing of the present invention.
Preferably, be to be used as the overhang thrust slide bearing of structure of pillar in four-wheel car according to sliding bearing of the present invention.Wherein, the clutch shaft bearing body can be upper shell or lower shell body, and second bearing support can be lower shell body or upper shell.The clutch shaft bearing body can be a upper shell, and second bearing support can be made of bearing member and lower shell body.In addition, the clutch shaft bearing body can be made of lower shell body, and second bearing support can be bearing member and upper shell.
According to the present invention, a kind of plastic sliding bearing can be provided, wherein, even thrust load increases, friction torque is in fact also constant, thereby can form the slidingsurface that has friction moment and keep little friction factor in long-term the use.So just can not produce frictional noise at the slidingsurface place, be convenient to regulate friction factor, to obtain best friction factor.When it being installed in column support type as thrust slide bearing and overhanging in the structure, can guarantee to be equal to the smooth-going steering operation of rolling bearing situation, and can regulate friction factor optimally, easily, thereby eliminate the flutter phenomenon of steering wheel.
Below, be described in detail the present invention and carry out mode of the present invention with reference to preferred embodiment illustrated in the accompanying drawings.Should notice that the present invention does not limit to these embodiments.
Description of drawings
Fig. 1 is the sectional view of a preferred embodiment of the present invention;
Fig. 2 is the planimetric map according to embodiment's shown in Figure 1 ring part;
Fig. 3 is the planimetric map of sheet shaped piece embodiment illustrated in fig. 1;
Fig. 4 is that embodiment shown in Figure 1 is combined in the overhang schematic representation of an example in the structure of column support type;
Fig. 5 is the partial sectional view of another preferred embodiment of the present invention;
Fig. 6 is the partial sectional view of a preferred embodiment more of the present invention;
Fig. 7 is the partial sectional view of another preferred embodiment of the present invention;
Fig. 8 is the partial sectional view of another preferred embodiment of the present invention;
Fig. 9 is the partial sectional view of another preferred embodiment of the present invention;
Figure 10 is the partial sectional view of another preferred embodiment of the present invention;
Figure 11 is the partial sectional view of another preferred embodiment of the present invention;
Figure 12 is the partial sectional view of another preferred embodiment of the present invention;
Figure 13 is the partial sectional view of another preferred embodiment of the present invention;
Figure 14 is the embodiment's shown in Figure 13 radial bearing body and the stereogram of cylinder sheet;
Figure 15 is the planimetric map according to another example of ring part of the present invention;
Figure 16 is the planimetric map of an example again according to ring part of the present invention;
Figure 17 is the sectional view of another preferred embodiment of the present invention; And
Figure 18 is the planimetric map of embodiment's shown in Figure 17 ring part.
Embodiment
In Fig. 1 to 3, the sliding bearing 1 that overhangs in the structure according to the column support type that is used in the four-wheel car of the present invention comprises: have the upper shell 3 of annular surface 2, this upper shell is made by the polyacetal resin as synthetic resin; Be stacked on the upper shell 3 so that second bearing support 5 that rotates along the R direction around the axes O of upper shell 3, this second bearing support also has annular surface 4 that made by synthetic resin, relative with the annular surface 2 of upper shell 3; And make by synthetic resin, between annular surface 2 and 4, abut against the ring segment 6 of at least one (that is, abut against in this embodiment upper shell 3 and bearing support 5 both) in upper shell 3 and the bearing support 5 slidably.
Plastic upper shell 3 has formed and comprised: annular upper shell body portion 13, this body portion have annular surface 2 and form the inner periphery surface 12 of circular hole 11 at middle body; Form with the radially inner periphery of upper shell body portion 13 and towards the interior perimeter sides cylindrical shape that bearing support 5 the overhangs part 14 that overhangs; Be provided in inner periphery side cylindrical shape overhang part 14 radially outer, with annular surface 2 inner periphery side cylindrical shape integrally formed, that overhang to bearing support 5 part 15 that overhangs; The mate 16 that overhangs with the integrally formed cylindrical shape of the radial outer periphery of upper shell body portion 13; Be arranged on the mate 16 that cylindrical shape overhangs inner radial, be positioned at the inner periphery side cylindrical shape overhang part 15 radially outer and with the integrally formed periphery avris cylindrical shape of annular surface 2 part 17 that overhangs; And be formed on overhang engagement hook portion 18 on the inside perimeter surface in footpath of mate 16 of cylindrical shape.
Plastic lower shell body 21 forms and comprises following part: the annular lower shell body body portion 32 with interior perimeter surface 30 and annular surface 31; And the radially inner periphery of lower shell body body portion 32 is integrally formed, outstanding and be arranged on interior perimeter sides cylindrical shape overhang the interior perimeter sides cylindrical shape projection 33 between the part 15 of part 14 and inner periphery side cylindrical shape that overhangs to upper shell 3; Be arranged on the radially outer of inner periphery side cylindrical shape projection 33, integrally formed and with annular surface 31 to the outstanding interior all side cylindrical shape projections 34 of upper shell 3; And the radial outer periphery of lower shell body body portion 32 is integrally formed, outstanding and be in cylindrical shape overhang the outstanding mate 35 of cylindrical shape between the part 17 of mate 16 and outer circumferential side cylindrical shape that overhangs to upper shell 3; Be arranged on the inner radial of the outstanding mate 35 of cylindrical shape, the radially outer that is positioned at all side cylindrical shape projections 34, outer circumferential side cylindrical shape projection 36 31 integrally formed with annular surface, that give prominence to upper shell 3; The engagement hook portion 37 that the outer radial periphery that is formed on the outstanding mate 35 of cylindrical shape is lip-deep, be suitable for meshing described engagement hook portion 18; And 38 integrally formed, on the inside all sides in the footpath of lower shell body body portion 32 with the outer surface of lower shell body body portion 32, have continuously to the interior perimeter surface 39 of interior perimeter surface 30, and outstanding downwards cylindrical portions may 40.Interior perimeter surface 30 and interior perimeter surface 39 define concentric with circular hole 11 a basically circular hole 41 in the middle body of lower shell body body portion.
Interior all side cylindrical shape projections 33 form and make its all side cylindrical shape projection 34 in the height H 1 of annular surface 31 is lower than leave the height H 2 of annular surface 31 similarly.Equally, the mate 35 that cylindrical shape is outstanding forms the height H 3 that makes it leave annular surface 31 and is lower than height H 4 (see figure 5)s that outer circumferential side cylindrical shape projection 36 leaves annular surface 31 similarly.Should be noted that the present invention is not limited to this, for example, interior all side cylindrical shape projections 33 can be configured to identical height (H1=H2) with interior all side cylindrical shape projections 34, the outstanding mate 35 of cylindrical shape with interior week side-prominent part 30 also can be configured to identical height (H3=H4).
Except the interior annular protrusion 19 and outer annular protrusion 20 that form as one with respect to the annular surface 4 of annular surface 2 and with annular surface 4, ring part 22 also has is arranged to another annular surface 55 relative with annular surface 4, and in being arranged on the interior annular protrusion on all sides 56 and be arranged in the radially outer and concentric substantially with it, the integrally formed outer annular protrusion 57 of annular protrusion 56 with annular surface 55.Annular surface 55 relative plastic annular surfaces 31 lower shell body 21 and ring part 22 abut against interior annular protrusion 56 and the outer annular protrusion 57 that forms in the same manner with interior annular protrusion 19 and outer annular protrusion 20 slidably.
Ring seal groove 58 by interior annular protrusion 19 and outer annular protrusion 20 encirclements is formed on the annular surface 4, and the ring seal groove 59 that is surrounded by interior annular protrusion 56 and outer annular protrusion 57 is formed on the annular surface 55.With in lubricating grease and the lubricant oil at least one, preferably silicone-based lubricating grease is full of the groove 58 and 59 of sealing.
Sheet shaped piece 6 is by synthetic resin, comprise that preferably at least a synthetic resin in polyamide resin, polyester resin, vistanex, polycarbonate resin, the fluororesin makes, and have from 0.05 millimeter to 1.0 millimeters thickness, this sheet shaped piece is set at annular surface 2 and comprises between the projection of interior annular protrusion 19 and outer annular protrusion 20, and abut against annular surface 2 slidably and comprise at least one side in the projection of annular protrusion 19 and outer annular protrusion 20, abut against in this embodiment annular surface and projection the two.
The groove 58 of sealing is surrounded by interior annular protrusion 19 and outer annular protrusion 20, thus it with respect to the area of sheet shaped piece 6 the gross area greater than interior annular protrusion 19 that abuts against sheet shaped piece 6 slidably and outer annular protrusion 20.In other words, the groove 58 of sealing is surrounded by interior annular protrusion 19 and outer annular protrusion 20, so that the area of fluid 60 that contacts sheet shaped piece 6 is greater than the gross area of interior annular protrusion 19 that abuts against sheet shaped piece 6 slidably and outer annular protrusion 20.Closed pockets 59 is surrounded by interior annular protrusion 56 and outer annular protrusion 57, so that it is with respect to the area of annular surface 31 gross area greater than interior annular protrusion 56 that abuts against annular surface 31 slidably and outer annular protrusion 57.In other words, the groove 59 of sealing is surrounded by interior annular protrusion 56 and outer annular protrusion 57, so that the area of fluid 61 that contacts annular surface 31 is greater than the gross area of interior annular protrusion 56 that abuts against annular surface 31 slidably and outer annular protrusion 57.
Under the thrust load effect, interior annular protrusion 19 and outer annular protrusion 20 are suitable for by this way against sheet shaped piece 6, that is, by deflection deformation, so that make the fluid 60 in the closed pockets 58 produce internal pressure by the fluid-filled volume that makes closed pockets 58 is less.Under the thrust load effect, interior annular protrusion 56 and outer annular protrusion 57 also are fit to abut against in such a way annular surface 31, that is,, make the fluids 61 in the closed pockets 59 produce internal pressures so that diminish by the fluid-filled volume that makes closed pockets 59 by deflection deformation.
The engagement hook portion 37 snap-button formula ground Elastic Meshing of the mate 35 that engagement hook portion 18 places of the mate 16 that upper shell 3 overhangs in the cylindrical shape of its radial outer periphery part and the cylindrical shape of the part of the radial outer periphery in the lower shell body 21 are given prominence to, thus flexibly assemble and be fixed in lower shell body 21.
In the radial outer periphery of upper shell 3 and lower shell body 21 part with radially at least one in the inner periphery part be (promptly, be in this embodiment on two peripheral parts, a labyrinth structure 65 is arranged to be formed between upper shell 3 and the lower shell body 21 by upper shell body portion 13, cylindrical shape overhang part 17 and lower shell body body portion 32, the outstanding mate 35 of cylindrical shape and the outer circumferential side cylindrical shape projection 36 of mate 16 and outer circumferential side cylindrical shape that overhang.Labyrinth structure 66 is arranged to be formed by upper shell body portion 13, interior all side cylindrical shapes overhang part 15 and lower shell body body 32, interior all side cylindrical shape projections 33 and the interior all side cylindrical shape projections 34 of part 14 and interior all side cylindrical shapes that overhang.Can prevent that at the labyrinth structure 65 of outer peripheral portion with at the labyrinth structure 66 of inner periphery portion dust, muddy water etc. from entering the groove 58 and 59 of sealing from the outside.As shown in Figure 4, above-mentioned sliding bearing 1 is to use like this, that is, be assembled both ways between, on the one hand be the overhang upper spring seat 72 of the helical spring 71 in the assembly of column support type, on the other hand on the vehicle body side, be used for fixing the assembling set 74 of the piston rod 73 of liquid condenser.In the case, circular hole 11 and 41 is inserted on the top of piston rod 73, so that with respect to upper shell 3 and lower shell body 21, around axes O, rotate along the R direction.
In the column support type of installing with sliding bearing 1 overhangs assembly, as shown in Figure 4, when steering operation, the passing through helical spring 71 can carry out relatively rotating of equidirectional with respect to upper shell 3 by lower shell body 21 along relatively rotating of R direction smooth-goingly of upper spring seat 72 around axes O.
Therefore, according to this sliding bearing 1 of the present invention, abut against the upper shell body portion 3 of upper shell 3 and the interior annular protrusion 19 of ring part 22 and the plastic annular slice spare 6 of outer annular protrusion 20 slidably and be between annular surface 2 and 4.Therefore, as long as this sheet shaped piece 6 of transposing just can be regulated the friction factor between upper shell 3 and the ring part 22 at an easy rate, thereby obtain best friction factor.And, when sliding bearing 1 is installed in column support type when overhanging in the structure as thrust slide bearing, can guarantee to be equal to the smooth-going steering operation of rolling bearing situation, and be easy to regulate best friction factor, so that the flutter phenomenon when eliminating steering operation.
In addition, according to this sliding bearing 1, abutted against the interior annular protrusion 19 of sheet shaped piece 6 and the closed pockets 58 of outer annular protrusion 20 encirclements slidably and be formed on the annular surface 4, the fluid 60 that is made of silicone-based lubricating grease is arranged to fill with this closed pockets 58.Simultaneously, under the thrust load effect, interior annular protrusion 19 and outer annular protrusion 20 are suitable for abutting against in such a way sheet shaped piece 6, promptly, by deflection deformation, consequently diminishing by the fluid-filled volume that makes closed pockets 58 makes the fluids in the closed pockets 58 produce internal pressure.Therefore, can accept thrust load with cut mode by the fluid that is filled in the closed pockets 58.In other words, by the surface of contact interior annular protrusion 19 of sheet shaped piece 6 and outer annular protrusion 20 and be filled in the closed pockets 58 and the surface that contacts the fluid 60 of sheet shaped piece 6 constitutes the slidingsurface with respect to sheet shaped piece 6 of lower shell body 21.
In addition, according to this sliding bearing 1, because the surface area that is filled in the closed pockets 58 and contacts the fluid 60 of sheet shaped piece 6 is configured to the gross area greater than interior annular protrusion 19 that abuts against sheet shaped piece 6 slidably and outer annular protrusion 20, therefore the thrust load that is supported by interior annular protrusion 19 and outer annular protrusion 20 descends significantly.Thereby the surface friction drag between interior annular protrusion 19 and outer annular protrusion 20 these sides and sheet shaped piece 6 those sides reduces significantly.Simultaneously, because the surface area of the fluid 60 of contact sheet shaped piece 6 makes surface friction drag minimum, pretending is that an integral body can obtain minimum surface friction drag.Therefore, even lower shell body 21 also can carry out with minimum surface friction drag along relatively rotating under the thrust load effect of R direction around the axes O of upper shell 3 with respect to upper shell 3.And,, therefore can in long-term the use, keep low coefficient of friction, and eliminate friction noise in the generation of slidingsurface place because fluid 60 is filled in the closed pockets 58 that is sealed by the sheet shaped piece 6 that can play the Sealing effect.Equally, even when sliding bearing 1 being installed in column support type and overhanging in the structure, also can guarantee the smooth-going steering operation that the situation with rolling bearing is equal to.
For sliding bearing 1, closed pockets 59 also is full of fluid 61, interior annular protrusion 56 under the thrust load effect and outer annular protrusion 57 are suitable in such a way against annular surface 31, promptly, by deflection deformation, make the fluid 61 in the closed pockets 59 produce internal pressures so that diminish by the fluid-filled volume that makes closed pockets 59.Therefore, even for a certain reason or other reason make the surface friction drag between interior annular protrusion 19 and outer annular protrusion 20 these sides and sheet shaped piece 6 those sides become big, also can same way as previously discussed guaranteeing can be with minimum friction factor slip between interior annular protrusion 56 and outer annular protrusion 57 these sides and annular surface 31 those sides.Therefore, even under the thrust load effect, lower shell body 21 can carry out with minimum surface friction drag along relatively rotating of R direction around the axes O of upper shell 3 with respect to upper shell 3, thereby makes the work of sliding bearing 1 become very reliable.
In the above description, sheet shaped piece 6 by lining be against annular surface 2 be set at annular surface 2 and comprise between the projection of annular protrusion 19 and outer annular protrusion 20.Perhaps, as shown in Figure 5, sheet shaped piece 6 can by lining be against annular surface 4 be set at annular surface 2 and comprise between the projection of annular protrusion 19 and outer annular protrusion 20, thereby between sheet shaped piece 6 and annular surface 2, form ring seal space 81 corresponding to closed pockets 58.In the case, if enclosed space 81 filling fluid 60, so as long as by just being enough to accept thrust load by the fluid 60 that is filled in the enclosed space 81 with aforesaid same way as.In addition, can sheet shaped piece 6 linings be against annular surface 2 or 4, but make sheet shaped piece 6 deflections so that between annular surface 2 and annular surface 4, not only formed closed pockets 58 and but also form enclosed space 81, and can filling fluid 60 in closed pockets 58 and the enclosed space 81.
In addition, for above-mentioned sliding bearing 1, though adopted the ring part 22 of annular protrusion 56 and outer annular protrusion 57 on its annular surface 55, having, but also can adopt the ring part 22 that has flat annular surface 55, do not have interior annular protrusion 56 and outer annular protrusion 57, and make annular surface 55 abut against the flat annular surface 31 of lower shell body body portion 32 slidably, as shown in Figure 6, constitute sliding bearing 1.And, if not constituting bearing support 5 by lower shell body 21 and independent ring part 22 by the above mode, also can form the annular central projection 82 that is equal to ring part 22 with lower shell body body portion 32, as shown in Figure 7, and the projection that comprises interior annular protrusion 19 and outer annular protrusion 20 can form with the annular surface 4 of annular central projection 82, abuts against sheet shaped piece 6 slidably so that comprise the projection of interior annular protrusion 19 and outer annular protrusion 20.In the case, as shown in Figure 7, interior all side cylindrical shape projections 34 and outer circumferential side cylindrical shape projection 36 can be one with the annular central projection.Perhaps, annular central projection 82 can be like this and lower shell body body portion 32 form as one, promptly, between interior all side cylindrical shape projections 34 and outer circumferential side cylindrical shape projection 36, produce a radial clearance, annular central projection 82 and lower shell body body portion 32 are formed as one, that is, omit interior all side cylindrical shape projections 34 and outer circumferential side cylindrical shape projection 36.
In addition, though under the situation of above-mentioned sliding bearing 1, sheet shaped piece 6 is set between annular surface 2 and 4, but sheet shaped piece 6 also can be arranged between annular surface 31 and the annular surface 55, as shown in Figures 8 to 10, abut against annular surface 31 and the projection that comprises interior annular protrusion 56 and outer annular protrusion 57 slidably to allow sheet shaped piece 6.Wherein, comprise that the interior annular protrusion 19 of ring part 22 and the projection of outer annular protrusion 20 abut against annular surface 2 slidably, as shown in Figure 8.Perhaps, the flat annular surface 4 of ring part 22 abuts against annular surface 2 slidably, as shown in Figure 9.Again or, as shown in figure 10, can be by constituting upper shell 3 with upper shell body portion 13 annular central projection 83 integrally formed, that be equal to ring part 22 and be similar to annular central projection 82.Under any above-mentioned situation, as long as use the fluid 61 filling closed pockets 59 that constitute by silicone-based lubricating grease.In addition, between annular surface 31 and annular surface 55, can form an enclosed space that is equal to enclosed space 81, and the available fluid 61 that constitutes by silicone-based lubricating grease or analog this enclosed space of filling in the same manner as described above.
In addition, as shown in figure 11, for example, sheet shaped piece 6 can be set between annular surface 2 and the annular surface 4, and another sheet shaped piece 6 can be arranged between annular surface 31 and the annular surface 55.In the case, sheet shaped piece 6 can be slidably against annular surface 2 and interior annular protrusion 19 and outer annular protrusion 20, and plastic another sheet shaped piece 6 can be slidably against annular surface 31 and interior annular protrusion 56 and outer annular protrusion 57.But as shown in figure 11, ring part 22, two sheet shaped pieces 6 that have flat annular surface 4 and 55 by employing can abut against flat annular surface 4 and 55 respectively, slidably.As long as plastic another sheet shaped piece 6 is by comprising that at least a synthetic resin in polyamide resin, polyester resin, vistanex, polycarbonate resin and the fluororesin forms, and has from 0.05 millimeter to 1.0 millimeters thickness and get final product.
Additional disclosure, for above-mentioned sliding bearing 1, upper shell 3 is to form like this, promptly, on the annular surface 2 of upper shell body portion 13, form inside cylindrical shape part 14 and the interior all side cylindrical shapes part 15 that overhangs that overhangs, and lower shell body 21 is to form like this,, forms interior all side cylindrical shape projections 33 and interior all side cylindrical shape projections 34 or similar portions on the annular surface 31 of lower shell body body portion 32 that is.But perhaps, as shown in figure 12, upper shell 3 can comprise: the cylindrical shape part 91 integrally formed with the annular outer surface 90 of upper shell body portion 13; The annular portion 92 integrally formed with cylindrical shape part 91; And with the integrally formed cylindrical shape of annular portion 92 part 93 that overhangs.Simultaneously, lower shell body 21 can comprise: with the annular surface 31 of lower shell body body portion 32 integrally formed, be arranged to concentricity substantially and with cylindrical shape part 91 in the cylindrical shape part 95 of its inner radial; The annular protruding portion 97 integrally formed with the cylindrical external surface 96 of the annular surface 31 of lower shell body body portion 32 and cylindrical portions may 95; And and the ring end surfaces 98 of cylindrical shape part 95 integrally formed, be arranged on the cylindrical shape projection 99 between cylindrical shape part 91 and the cylindrical shape part 93.
For sliding bearing shown in Figure 12 1, labyrinth structure 66 is disposed between upper shell 3 and the lower shell body 21, and is formed by overhang part 93, cylindrical shape part 95 and cylindrical shape projection 99 of cylindrical shape part 91, annular portion 92, cylindrical shape.This layout is to make in the cylinder inner surface 101 formed circular holes 102 of top insertion by cylindrical shape part 95 of piston rod 73, so that rotate along the R direction around axes O with respect to upper shell 3 and lower shell body 21.In addition, or situation at sliding bearing 1 shown in Figure 12, between upper shell 3 and lower shell body 21, form labyrinth structure 65 by upper shell body portion 13, cylindrical shape overhang part 17, lower shell body body portion 32, the outstanding mate 35 of cylindrical shape and the outer circumferential side cylindrical shape projection 36 of mate 16, outer circumferential side cylindrical shape that overhang, and sheet shaped piece 6 with and above shown in same way as for example be placed between annular surface 2 and 4.
In addition, can constitute upper shell 3 and lower shell body 21 as shown in Figure 13.For sliding bearing shown in Figure 13 1, mate 16, the outer circumferential side cylindrical shape that overhangs except above-described upper shell body portion 13, cylindrical shape overhangs part 17 and the engagement hook portion 18, and upper shell 3 also comprises: the cylindrical shape part 111 that overhang integrally formed with the annular surface 2 of upper shell body portion 13; With the end surfaces 112 of the cylindrical shape part 111 that overhangs integrally formed and with its concentric substantially a pair of annular portion that overhangs 113 and 114 mutually; And the cylindrical portions may 116 integrally formed with the radially outer cylindrical surface 115 of the annular surface 2 of upper shell body portion 13 and the cylindrical shape part 111 that overhangs.Simultaneously, except the outstanding mate 35 of above-described lower shell body body portion 32, interior all side cylindrical shape projections 34, cylindrical shape, outer circumferential side cylindrical shape projection 36 and engagement hook portion 37, lower shell body 21 also comprises: be arranged on cylindrical portions may 121 on the inside all sides in footpath of lower shell body body portion 32, integrally formed with the outer surface 38 of lower shell body body portion 32; With the end surfaces of cylindrical portions may 121 integrally formed, by forming the frusto-conical portion 122 of the hollow that ring-shaped step part 126 forms; Integrally formed annular portion 123 on the interior perimeter surface of frusto-conical portion 122; And and the annular surface 124 of annular portion 123 integrally formed, the cylindrical shape projection 125 between a pair of annular portion that overhangs 113 and 114.
Under the situation of sliding bearing shown in Figure 13 1, except the labyrinth structure 65 that is similar to above-mentioned labyrinth structure, between upper shell 3 and lower shell body 21, form labyrinth structure 66 by the cylindrical shape part 111 that overhangs, the paired annular portion 113 and 114 that overhangs, annular portion 123 and cylindrical shape projection 125, and sheet shaped piece 6 for example is set at respectively between annular surface 2 and 4 and between annular surface 31 and 55.This layout is that the top of piston rod 73 is inserted in the circular hole 132 that the drum type inner surface 131 by the cylindrical shape part 111 that overhangs forms, rotate along the R direction so that can center on axes O with respect to upper shell 3 and lower shell body 21.
Additional disclosure, under the situation of sliding bearing shown in Figure 13 1, cylindrical shape radial bearing body 145 and cylindrical shaped sheet 146 can be folded between the cylinderical surface 142 relative on the radially inner side of cylinderical surface 115 on the radial outside of the cylindrical shape part 111 that overhangs and cylindrical shape part 121 with cylinderical surface 115.Wherein, as shown in figure 14, radial bearing body 145 has: cylindrical shape part 140; And with a plurality of protruding 148 of the drum type inner surface 147 of cylindrical shape part 140 another annular end surface 150 integrally formed, extend to cylindrical shape part 140 from an annular end surface 149 of cylindrical shape part 140.In the mode identical with sheet shaped piece 6, cylinder sheet 146 is by comprising that at least a synthetic resin in polyamide resin, polyester resin, vistanex, polycarbonate resin and the fluororesin forms, and has 0.05 millimeter to 1.0 millimeters thickness.Cylinder sheet 146 is arranged in the radial bearing body 145.Cylinder sheet 146 abuts against a plurality of top surfaces of protruding 148 162 slidably at its circumferential outer surface 161 places, and abuts against the drum surface 115 of the cylindrical portions may 111 that overhangs slidably at its circumferential inner surface 163 places.
Sliding bearing 1 comprises: have above-mentioned relative mutually cylinderical surface 115 and 142 upper shell 3 and bearing support 5 respectively; Plastic cylinder sheet 146 is folded between cylinderical surface 115 and 142, abuts against at least one (that is, abutting against cylinderical surface 115 in this embodiment) in two cylinderical surfaces 115 and 142 slidably; And the cylindrical external surface 165 that abuts against the cylindrical portions may 140 of cylinderical surface 142 slidably.In this sliding bearing 1, the radial load with respect to upper shell 3 of bearing support 5 can be accepted by radial bearing body 145 and cylinder sheet 146.So, even lower shell body 21 also can carry out with extremely low surface friction drag with respect to upper shell 3 relatively rotating bearing under the radial load effect around the axes O of upper shell 3 along the R direction.
Can only constitute radial bearing body 145 by the cylindrical shape part 140 that does not have a plurality of protruding 148.In addition, can on the outer surface 165 of cylindrical shape part 140, form a plurality of protruding 148.In the case, as long as be arranged on the outer surface 165 of cylindrical portions may 140 sheet shaped piece 146 just passable.In addition, can form a plurality of protruding 148 on the two at the internal surface 147 of cylindrical shape part 140 and outer surface 165.In any one of above-mentioned all forms of radial bearing body 145, sheet shaped piece 146 can be separately positioned on the radial outside of radial bearing body 145 and inboard on the two.
As shown in figure 15, ring part 22 is to form like this, promptly, at least one group in annular protrusion 19 in comprising and outer annular protrusion 20 these groups and interior annular protrusion 56 and outer annular protrusion 57 these groups, can also comprise integrally formed, that have annular protrusion 19 (56) and outer annular protrusion 20 (57) in being connected to integratedly respectively with annular surface 4 (55), radially extend and at circumferential a plurality of radial protrusions 151 with spaced set.In the situation of ring part shown in Figure 15 22, as long as the fluid 60 (61) that constitutes with the lubricating grease of the silicone-based that is similar to above-mentioned lubricating grease comes filling closed pockets 152 just passable, described closed pockets 152 by separate, surrounded by interior annular protrusion 19 (56) and outer annular protrusion 20 (57) and a plurality of radial protrusion 151.
In addition, assign to form ring part 22 if can't help to have the protuberance of interior annular protrusion 19 (56) and outer annular protrusion 20 (57), as shown in figure 16, can be integrally formed at least one of annular surface 4 and 55 by being included in, assign to form ring part 22 at circumferential protuberance with a plurality of radial protrusions 171 of spaced set.On two annular surfaces 4 and 55, form in the occasion of a plurality of radial protrusions 171, as long as a plurality of radial protrusions 171 on the annular surface 4 and a plurality of radial protrusions 171 on the annular surface 55 are arranged in circumferentially offset located mutually.
In addition, shown in Figure 17 and 18, ring part 22 is except forming at least one group that comprises in interior annular protrusion 19 and outer annular protrusion 20 these groups and interior annular protrusion 56 and outer annular protrusion 57 those groups, at least one group in the projection also has with annular surface 4 integrally formed, radially be between interior annular protrusion 19 and the outer annular protrusion 20, and with interior annular protrusion 19 and the concentric substantially intermediate annular projection 181 of outer annular protrusion 20, and another group projection also has with annular surface 55 integrally formed, radially be between interior annular protrusion 56 and the outer annular protrusion 57, and with interior annular protrusion 56 and concentric substantially another intermediate annular projection 182 of outer annular protrusion 57.
For the sliding bearing 1 that utilizes the ring part 22 shown in Figure 17 and 18, adopt upper shell 3, sheet shape part 6 and the lower shell body 21 of form shown in Figure 1, closed pockets 58 is that annular inner sealing groove 185 that is surrounded by interior annular protrusion 19 and intermediate annular projection 181 and the annular outer closure groove 186 that is surrounded by intermediate annular projection 181 and outer annular protrusion 20 form.Simultaneously, closed pockets 59 is to be formed by the annular inner sealing groove 187 of interior annular protrusion 56 and 182 encirclements of intermediate annular projection and the annular outer closure groove 188 that is surrounded by intermediate annular projection 182 and outer annular protrusion 57.
For adopt with the ring part 22 shown in Figure 17 and 18 (this ring part except interior annular protrusion 19 and 56 and outer annular protrusion 20 and 57 also comprise projection with intermediate annular protruding 181 and 182) sliding bearing 1, even sliding bearing 1 is applied the power of irregularity, also can reduce the uneven deflection of two interior annular protrusions 19 and 56 and two outer annular protrusion 20 and 57 in thrust direction.And, can advantageously keep the closed pockets 58 that forms by inner sealing groove 185 and outer closure groove 186 and the closed pockets 59 that forms by inner sealing groove 187 and outer closure groove 188 closed state (sealing state airtightly).Therefore, can keep fluid 60 and 61 to accept the ability of thrust load chronically, fluid 60 and 61 can not leak from closed pockets 58 and 59 simultaneously.
If desired, can be by mode same as described above with intermediate annular projection 181 and 182 ring part 22 and the sliding bearings 1 that are applied in the corresponding form shown in Fig. 5 to 10 and Figure 12,13 and 15.In addition, each intermediate annular projection 181 and 182 is not limited to one, can comprise be arranged to concentric substantially mutually a plurality of.In addition, can save in the intermediate annular projection 181 and 182 any one.
Claims (35)
1. sliding bearing comprises:
One has the clutch shaft bearing body of an annular surface;
One second bearing support, this second bearing support is stacked in described clutch shaft bearing
So that around the rotational of described clutch shaft bearing body, and have an annular surface relative on the body with the annular surface of described clutch shaft bearing body; And
One plastic ring segment, this ring segment are set between described two annular surfaces, and abut against in the described bearing support at least one slidably;
It is characterized in that: described second bearing support have one on its annular surface integrally formed projection, described projection comprises at least: the interior annular protrusion in being arranged on all sides, be arranged on described in annular protrusion radially outer and with its concentric substantially outer annular protrusion, described ring segment is set between the annular surface of described projection and described clutch shaft bearing body, and abut against in the annular surface of described projection and described clutch shaft bearing body at least one slidably, on the annular surface of described second bearing support, be formed with a closed pockets that surrounds by described projection.
2. according to the sliding bearing of claim 1, it is characterized in that: described ring segment is by comprising that at least a synthetic resin in polyamide resin, polyester resin, vistanex, polycarbonate resin and the fluororesin forms.
3. according to the sliding bearing of claim 1 or 2, it is characterized in that: described ring segment has 0.05 millimeter to 1.0 millimeters thickness.
4. according to the sliding bearing of claim 1 or 2, it is characterized in that: described two bearings body forms by synthetic resin.
5. according to the sliding bearing of claim 1 or 2, it is characterized in that: described two bearings body is by comprising that at least a synthetic resin in polyacetal resin, polyamide resin, polyester resin, vistanex, polycarbonate resin and the fluororesin forms.
6. according to the sliding bearing of claim 1 or 2, it is characterized in that: described clutch shaft bearing body is formed by polyacetal resin, and described second bearing support is by comprising that at least a synthetic resin in polyacetal resin, polyamide resin, vistanex and the fluororesin forms.
7. according to the sliding bearing of claim 1 or 2, it is characterized in that: described clutch shaft bearing body partly is suitable for partly locating flexibly to be assembled to described second bearing support in the radial outer periphery of described second bearing support in its radial outer periphery.
8. according to the sliding bearing of claim 1 or 2, it is characterized in that: between described two bearings body,, form a labyrinth structure at least one in the outer periphery of described two bearings body part and inner periphery part from radially observing.
9. according to the sliding bearing of claim 1 or 2, it is characterized in that: fluid is suitable at least one in a described closed pockets of filling and the ring seal space, and described ring seal space is formed between the annular surface of described annular sheet material and described clutch shaft bearing body and corresponding to described closed pockets.
10. according to the sliding bearing of claim 9, it is characterized in that: at least one the interior fluid that is filled in described closed pockets and described enclosed space is suitable for accepting thrust load.
11. the sliding bearing according to claim 10 is characterized in that: described projection is suitable for deflection deformation under the thrust load effect, so that in the fluid-filled volume of the fluid-filled volume of described closed pockets and described enclosed space diminishes.
12. sliding bearing according to claim 10, it is characterized in that: described projection is suitable for deflection deformation under the thrust load effect, and diminishing with in the fluid-filled volume of fluid-filled volume by making described closed pockets and described enclosed space at least one makes the fluid in described closed pockets and the described enclosed space at least one produce internal pressure.
13. the sliding bearing according to claim 9 is characterized in that: described fluid comprises at least one in lubricating grease and the lubricant oil.
14. the sliding bearing according to claim 9 is characterized in that: described fluid is made of silicone-based lubricating grease.
15. the sliding bearing according to claim 1 or 2 is characterized in that: the radial protrusion that radially extends and be connected in integratedly the corresponding all projectioies in described interior annular protrusion and the described outer annular protrusion.
16. the sliding bearing according to claim 1 or 2 is characterized in that: described projection also comprises: from radially observing, be arranged on described between annular protrusion and the described outer annular protrusion, with their concentric substantially at least one intermediate annular projectioies.
17. sliding bearing according to claim 1 or 2, it is characterized in that: described second bearing support comprise bearing member and be arranged on described bearing member and described clutch shaft bearing body between so that with respect at least one ring part around the rotational of described clutch shaft bearing body in described clutch shaft bearing body and the described bearing member, described ring part has the annular surface relative with the plastic annular surface of described clutch shaft bearing body and integrally formed described projection on the described annular surface relative with the plastic annular surface of described clutch shaft bearing body.
18. the sliding bearing according to claim 17 is characterized in that: described bearing member is formed by polyacetal resin, and described ring part is by comprising that at least a synthetic resin in polyamide resin, vistanex and the fluororesin forms.
19. sliding bearing according to claim 17, it is characterized in that: described ring part has another annular surface, the described annular surface of described another annular surface and described annular surface with respect to the clutch shaft bearing body be oppositely arranged and on described another annular surface integrally formed another projection, described bearing member have another annular surface with described ring part relative and slidably against the plastic annular surface of described another projection.
20. want 19 sliding bearing according to right, it is characterized in that: be provided with plastic another ring segment between the annular surface of described bearing member and described another projection, described another ring segment abuts against the annular surface of described bearing member and at least one in described another projection slidably.
21. the sliding bearing according to claim 20 is characterized in that: described another ring segment is by comprising that at least a synthetic resin in polyamide resin, polyester resin, vistanex, polycarbonate resin and the fluororesin forms.
22. the sliding bearing according to claim 20 is characterized in that: described another ring segment has 0.05 millimeter to 1.0 millimeters thickness.
23. sliding bearing according to claim 20, it is characterized in that: on another annular surface of described ring part, form another closed pockets that surrounds by described another projection, and another fluid is suitable in described another closed pockets of filling and another ring seal space at least one, and described another ring seal space is formed between the annular surface and described another ring segment corresponding to described another closed pockets of described bearing member.
24. the sliding bearing according to claim 23 is characterized in that: another fluid that is filled in described another closed pockets and described another enclosed space is suitable for accepting thrust load.
25. sliding bearing according to claim 24, it is characterized in that: described another projection is suitable for deflection deformation under the thrust load effect, so that at least one in the fluid-filled volume of the fluid-filled volume of described another closed pockets and described another enclosed space diminishes.
26. sliding bearing according to claim 24, it is characterized in that: described another projection is suitable for deflection deformation under the effect of thrust load, makes another fluid in described another closed pockets and described another enclosed space at least one produce internal pressure thereby diminish with in the fluid-filled volume of the fluid-filled volume by making described another closed pockets and described another enclosed space at least one.
27. the sliding bearing according to claim 23 is characterized in that: described another fluid comprises at least one in lubricating grease and the lubricant oil.
28. the sliding bearing according to claim 23 is characterized in that: described another fluid is made of silicone-based lubricating grease.
29. sliding bearing according to claim 19, it is characterized in that: described another projection comprise at least be arranged in annular protrusion on all sides another, and be arranged on described in another annular protrusion radially outer, with its concentric substantially another outer annular protrusion.
30. the sliding bearing according to claim 19 is characterized in that: described another projection comprises at least: annular protrusion in another in being arranged on all sides, be arranged on described in another annular protrusion radially outer and with its concentric substantially another outer annular protrusion and radially extend and be connected to described another radial protrusion of corresponding all projectioies in annular protrusion and described another outer annular protrusion in another integratedly.
31. sliding bearing according to claim 29, it is characterized in that: described another projection also comprises: from radially observing, be arranged on described in another between annular protrusion and described another outer annular protrusion and with they concentric substantially at least one another intermediate annular projectioies.
32. sliding bearing according to claim 1 or 2, it is characterized in that: described first has mutually relative cylinderical surface respectively with described second bearing support, be provided with plastic cylinder sheet between this two cylinderical surface, described cylinder sheet abuts against at least one in two cylinderical surfaces slidably.
33. the sliding bearing according to claim 32 is characterized in that: described cylinder sheet is by comprising that at least a synthetic resin in polyamide resin, polyester resin, vistanex, polycarbonate resin and the fluororesin forms.
34. the sliding bearing according to claim 32 is characterized in that: described cylinder sheet has 0.05 millimeter to 1.0 millimeters thickness.
35. the sliding bearing according to claim 1 or 2 is characterized in that: described sliding bearing is used as the overhang thrust slide bearing of structure of column support type in the four-wheel car.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP291558/2002 | 2002-10-03 | ||
| JP2002291558 | 2002-10-03 | ||
| JP326536/2002 | 2002-11-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1688826A CN1688826A (en) | 2005-10-26 |
| CN100436850C true CN100436850C (en) | 2008-11-26 |
Family
ID=35306346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB038237482A Expired - Fee Related CN100436850C (en) | 2002-10-03 | 2003-01-20 | Sliding bearing |
Country Status (2)
| Country | Link |
|---|---|
| JP (3) | JP4862867B2 (en) |
| CN (1) | CN100436850C (en) |
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- 2003-01-20 CN CNB038237482A patent/CN100436850C/en not_active Expired - Fee Related
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2008
- 2008-08-25 JP JP2008215915A patent/JP4862867B2/en not_active Expired - Fee Related
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2011
- 2011-06-06 JP JP2011126635A patent/JP5212519B2/en not_active Expired - Fee Related
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2012
- 2012-12-17 JP JP2012275175A patent/JP5660114B2/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH01141926U (en) * | 1988-03-23 | 1989-09-28 | ||
| JPH0460221A (en) * | 1990-06-29 | 1992-02-26 | Nec Home Electron Ltd | Thrust bearing setting structure in magnetic clutch |
| JPH04122812U (en) * | 1991-04-24 | 1992-11-05 | 住友建機株式会社 | Elastic shim for construction machinery |
| JPH0544716A (en) * | 1991-08-19 | 1993-02-23 | Nippon Seiko Kk | Dynamic pressure groove shaped sliding bearing |
| JPH0571540A (en) * | 1991-09-13 | 1993-03-23 | Nippon Seiko Kk | Slide bearing |
| JPH07269562A (en) * | 1994-03-31 | 1995-10-17 | Oiles Ind Co Ltd | Synthetic resin thrust bearing |
| JPH0949529A (en) * | 1995-08-08 | 1997-02-18 | Oiles Ind Co Ltd | Synthetic resin bearing |
| JPH1113768A (en) * | 1997-06-25 | 1999-01-22 | Oiles Ind Co Ltd | Synthetic resin thrust bearing |
| JP2002257146A (en) * | 2001-02-27 | 2002-09-11 | Oiles Ind Co Ltd | Sliding bearing made of synthetic resin |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103620244A (en) * | 2011-06-20 | 2014-03-05 | 奥依列斯工业株式会社 | Thrust roller bearing |
| CN103620244B (en) * | 2011-06-20 | 2017-03-29 | 奥依列斯工业株式会社 | Thrust slide bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4862867B2 (en) | 2012-01-25 |
| JP2011169469A (en) | 2011-09-01 |
| JP5212519B2 (en) | 2013-06-19 |
| JP2013092255A (en) | 2013-05-16 |
| JP5660114B2 (en) | 2015-01-28 |
| CN1688826A (en) | 2005-10-26 |
| JP2008292004A (en) | 2008-12-04 |
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