CN104251260B - Eccentric ball bearing - Google Patents
Eccentric ball bearing Download PDFInfo
- Publication number
- CN104251260B CN104251260B CN201410320312.0A CN201410320312A CN104251260B CN 104251260 B CN104251260 B CN 104251260B CN 201410320312 A CN201410320312 A CN 201410320312A CN 104251260 B CN104251260 B CN 104251260B
- Authority
- CN
- China
- Prior art keywords
- internal ring
- outer shroud
- spheroid
- ball bearing
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000033001 locomotion Effects 0.000 claims description 23
- 238000005086 pumping Methods 0.000 description 7
- 238000005096 rolling process Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Classifications
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/10—Bearings, parts of which are eccentrically adjustable with respect to each other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
- F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
- F04B9/045—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being eccentrics
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/50—Other types of ball or roller bearings
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/32—Balls
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/583—Details of specific parts of races
- F16C33/585—Details of specific parts of races of raceways, e.g. ribs to guide the rollers
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/16—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
- F16C19/163—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls with angular contact
- F16C19/166—Four-point-contact ball bearings
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
- F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
- F16C2240/70—Diameters; Radii
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention relates to an eccentric ball bearing (1) used for an electro-hydraulic piston pump device of a vehicle brake system. The eccentric ball comprises an inner ring (2); an outer ring (3), which is eccentrically disposed on the inner ring (2) in an encircled manner; and ball bodies (5) having different orbit diameters, which are disposed between the inner ring (2) and the outer ring (3). The orbit of the inner ring (2) and/or the orbit of the outer ring (3) are/is provided with the ball bodies(5)having different orbit diameters, which are disposed between the inner ring (2) and the outer ring (3).
Description
Technical field
The present invention relates to a kind of eccentric ball bearing of the feature with claim 1 preamble.It is of the invention inclined
Heart ball bearing is especially provided for the electro-hydraulic piston pumping unit of hydraulic brake system of motor vehicle.This pumping unit by with
To produce hydraulic brake pressure, for the braking maneuver in the brakes of anti-sliding control and/or outer force braking system.
Background technology
The A1 of patent application document DE 10 2,010 028 598 disclose with axle, prejudicially the bearer ring of surrounding axle and
The capacity eccentric bearing of the roller being positioned in the gap between axle and bearer ring.Bearer ring is alternatively referred to as outer shroud.Roller is according in axle
And the different gap width being eccentric between the bearer ring of axle has different diameters.If the axle of known capacity eccentric bearing is driven
Rotate and bearer ring keeps non-rotatable, then roller is rolled and around the axle motion for rotating on axle and in bearer ring.
This, bearer ring is moved on circuit orbit, because the roller of the surround movement with maximum gauge presses off bearer ring with axle, and
And opposite side at the roller with minimum diameter bearer ring near axle.
There is the pump piston that one or more are radially arranged relative to capacity eccentric bearing in piston pump or piston pumping unit with it
End abuts in bearer ring outside above and is driven by the bearer ring moved on circuit orbit and moves reciprocatingly.For example use spring
Pump piston is pressed onto from outside and is close to bearer ring, the bearer ring is the outer shroud of capacity eccentric bearing.For motor vehicle hydraulic system
In the electro-hydraulic piston pumping unit of dynamic system, capacity eccentric bearing is connected to the rotary motion of motor or flange on motor
The rotary motion of actuating device be converted to reciprocating motion for driving pump piston.
The content of the invention
Eccentric ball bearing with claim 1 feature of the invention has internal ring, prejudicially surrounds the outer of internal ring
Ring and the spheroid as rolling element, the spheroid is arranged in the gap between inner ring and outer rings.Spheroid can be equably or uneven
It is distributed evenly circumferentially.Because outer shroud is relative to the bias of internal ring, the gap width in the gap between inner ring and outer rings becomes
Change, the gap has narrow most position and most width position, it is widened always to most wide from narrow most position along two circumferencial directions
At position.Spheroid has different diameters according to the different gap width between inner ring and outer rings.The diameter of spheroid with each
The gap width in the gap between circumferential location the, inner ring and outer rings that spheroid is located at is equally big.
If the internal ring of eccentric ball bearing of the invention is driven relative to outer shroud rotation, then spheroid is on internal ring
And roll in outer shroud and around internal ring motion, as known to from ball bearing.Eccentric ball bearing of the invention is
Rolling bearing.In spheroid surround movement, the spheroid with maximum gauge presses off outer shroud with internal ring, and with minimum straight
The opposite side that the spheroid in footpath is located at, outer shroud is near internal ring.It can be said that the gap width of change is circular relative together with spheroid
The internal ring being driven in rotation in outer shroud is moved, i.e. most broad gap width, the smallest annular clearance width and each other gap widths and ball
Body is moved together around internal ring.Outer shroud is moved on a circuit orbit around internal ring.
According to the present invention, the internal ring and/or outer shroud of eccentric ball bearing have the track of different race way diameters for having
There is the spheroid of different-diameter.Spheroid with different-diameter is on internal ring and/or in outer shroud with different race way diameters
Roll on track.Present invention achieves race way diameter is mutually coordinated with the different-diameter of the spheroid of eccentric ball bearing.Thus spheroid is made
Skidding on internal ring and in outer shroud is slided minimum.The rolling with spheroid on internal ring and in outer shroud of skidding is stacked
Plus, and it is usually undesirable.It increases friction and wear.
In addition to the spheroid with different-diameter being provided with to the probability of different race way diameters, will be of the invention
It is when track is that eccentric sphere bearing construction is another advantage of the design of the ball bearing with the spheroid as rolling element
To the axially directed of spheroid on internal ring and in outer shroud during flute profile.Eccentric ball bearing of the invention can by axial force from
Internal ring is delivered on outer shroud, and vice versa, and does not need axial lock inner ring and outer rings.Track can be horizontal with circular
The groove of section, the circular cross-section of non-positive round, V-arrangement section or polygonal crosssection.The cross section of track can also have arc section
Or other segmental arcs.This is enumerated and is exemplary rather than exhaustive.
Another advantage of eccentric ball bearing of the invention is its simple and inexpensive structure.Can be using business
Go up internal ring, outer shroud and ball, the i.e. standard component of general ball bearing.
Internal ring, eccentric ball bearing of the invention is replaced to have axle, axle also is understood as interior in meaning of the present invention
Ring.
Eccentric ball bearing of the invention especially arrange apply it is electro-hydraulic, for braking in motor vehicle hydraulic
During the piston pumping unit of brake force is produced in system, it is converted to the rotary motion of motor for driving the reciprocal of pump piston
Motion.But the present invention is not limited to the application, and is intended to eccentric sphere bearing itself.
In piston pump or piston pumping unit, the rotary motion of the internal ring of eccentric ball bearing of the invention causes its
The circular motion of outer shroud, and the reciprocating motion for abutting in the pump piston outside outer shroud is converted into outside one or more.
Under the hypothesis that outer shroud does not rotate together with internal ring, with the half rotating speed surround movement of internal ring, similarly outer shroud is in circular rail for spheroid
The speed moved on road halves.Eccentric ball bearing of the invention has deceleration, the outer shroud in the case of outer shroud is non-rotatable
Eccentric circular velocity halve compared with the rotary speed of internal ring.Deceleration this have the advantage that rotating speed that can be higher drives,
This causes that less and lighter motor can be used in the case of power identical.
Except used as radial ball bearing, eccentric ball bearing of the invention is also designed to angular contact ball bearing.The row
Act is exemplary rather than exhaustive.
The content of dependent claims is the expedients scheme and improvement project of the invention be given in claim 1.
Description of the drawings
The present invention is elaborated below according to the embodiment shown in accompanying drawing.In accompanying drawing：
Fig. 1 shows eccentric ball bearing of the invention with end-view；And
Fig. 2 a to Fig. 2 c show the ring viewgraph of cross-section of the different circumferential locations in Fig. 1 bias ball bearings.
Specific embodiment
The of the invention eccentric ball bearing 1 illustrated in accompanying drawing has an internal ring 2 in outer shroud 3, the outer shroud with it is interior
Ring 2 is axially in parallel and prejudicially arranges.Due to bias, the gap 4 between internal ring 2 and outer shroud 3 has what is circumferentially changed
Gap width, gap 4 spreads to the most width position in the opposite side of eccentric ball bearing 1 from narrow most position along two circumferential directions
Place.The spheroid 5 as rolling element is provided with gap 4 between outer shroud 3 and internal ring 2, its gap width tool according to change
There are different diameters.It is big as the gap width of the circumferential location that the diameter of spheroid 5 is located at each spheroid 5.
Internal ring 2 is pressed onto unshowned motor or flange is connected on the axle 6 of the drive mechanism on motor, by described
Motor or drive mechanism enclose can axle 6 to rotate about the axis thereof, and its axis is also simultaneously its rotation axiss.
Eccentric ball bearing 1 is rolling bearing, is driven in rotation and in the case that outer shroud 3 is kept non-rotatable in internal ring 2,
Spheroid 5 is rolled on internal ring 2 and in outer shroud 3 and here is with the half rotating speed surround movement of internal ring 2.Outer shroud 3 and internal ring 2
Between gap 4 maximal clearance width with two have maximum gauge spheroids 5 together with surround movement.Similarly, the He of outer shroud 3
The minimum gap width in the gap 4 between internal ring 2 is with the spheroid 5 with minimum diameter with the half rotating speed surround movement of internal ring 2.
In other words, outer shroud 3 is moved when internal ring 2 is driven in rotation relative to the bias of internal ring 2 around internal ring 2, wherein, if outer shroud 3
Rotate not together, eccentric circular velocity is then that the half of the rotating speed of internal ring 2 is so big.Outer shroud 3 is on circuit orbit around interior
The axis of ring 2, while be also it rotation axiss motion, wherein, the speed of the circular motion of outer shroud 3 is the rotating speed of internal ring 2
Half is so big, that is, slow down.
Such as from traditional ball bearing, it is known that eccentric ball bearing 1 has and keeps spheroid 5 at their distances each other
Ball bearing retainer 7.
The internal ring 2 and outer shroud 3 of eccentric ball bearing 1 has for the spheroid 5 with different-diameter has different race way diameters
The track 8 of d1, d2, d3, D1, D2, D3.The fact of case illustrates by Fig. 2 a to Fig. 2 c, it illustrates internal ring 2 and outer shroud 3 and
In the cross section of each spheroid 5 of the different circumferential locations of eccentric ball bearing 1.One can be seen respectively in internal ring 2 and outer
Spheroid 5 between ring 3, wherein, spheroid 5 in fig. 2 a has minimum diameter, spheroid 5 in figure 2 c have maximum gauge and
Spheroid 5 in figure 2b has the diameter between minimum diameter and maximum gauge.Internal ring 2 has circular on its excircle
Groove, and outer shroud 3 has circular groove on its inner periphery, and they form track 8.Groove has the transversal of arc-shaped at bottom
Face, it is formed for the track 8 of the spheroid 5 with minimum diameter.In the cross section of groove laterally, it is respectively relative to eccentric sphere
The section of the radial center face specular ground of bearing 1 and then two circular arc is used for the spheroid 5 with the second major diameter.It after
Continue until the spheroid 5 with maximum gauge.By the cross section for each has the spheroid 5 of a diameter, groove has not
With the track 8 of race way diameter d1, d2, d3, D1, D2, D3.For the spheroid 5 with another diameter, groove has another track
The track 8 of diameter d1, d2, d3, D1, D2, D3.The arc section to form track 8 is provided with the cross section of groove so that with compared with
The spheroid 5 of major diameter is rolled and straight in less track in outer shroud 3 on internal ring 2 on larger race way diameter d1, d2, d3
Roll on footpath D1, D2, D3.The cross-section segments that the straight V-arrangement of groove is arranged are also feasible as track, in the cross-section segments
Spheroid 5 with different-diameter rolls (not shown) on different race way diameters.The race way diameter d1 of internal ring 2 and outer shroud 3, d2,
D3, D1, D2, D3 mutually coordinate with the spheroid 5 with different-diameter.
By the track 8 of channel-shaped, by axial force transmission to spheroid 5, so eccentric ball bearing 1 has for internal ring 2 and outer shroud 3
It is axially directed between internal ring 2 and outer shroud 3.
In outside, pump piston 10 is abutted on outer shroud 3 with its end.The pump piston of its end is only shown in the accompanying drawings
10 radially place relative to eccentric ball bearing 1 and are pressed against on outer shroud 3 from outside by unshowned piston spring.Pump piston 10
Axially displaceably, i.e., relative to eccentric ball bearing 1 it is radially movable be accommodated in the pumping holes 11 of pump case 12.Eccentric sphere
Bearing 1 is located at the pump case 12 between two pump pistons 10 being arranged opposite to each other in the present embodiment, arranging to fist formula
Cylindrical eccentric room 13 in.Rotated by driving internal ring 2, outer shroud 3 (being rotated together with internal ring 2) is with the rotating speed of internal ring 2
A half speed on circuit orbit around internal ring 2 axis, while be also it rotation axiss motion.The circumference fortune of outer shroud 3
It is dynamic to drive pump piston 10 reciprocating.Therefore eccentric ball bearing 1 is converted to the rotary motion of internal ring 2 for driving pump piston
10 reciprocating motion.Pump case 12 is the ingredient of so-called hydraulic block, is additionally provided with addition to pump piston 10 other
Unshowned hydraulic structure element, is such as used for the electromagnetic valve of the anti-skidding control device of hydraulic brake system of motor vehicle.This liquid
Briquetting is known per se, and is no longer further explained here.
Claims (3)
1. it is used to convert rotational motion into reciprocating eccentric ball bearing, with internal ring (2), described in prejudicially surrounding
The outer shroud (3) of internal ring (2) and with the spheroid in the gap (4) being arranged between the internal ring (2) and the outer shroud (3)
(5), the spheroid has different straight according to the different gap width in the gap (4) between the internal ring (2) and the outer shroud (3)
Footpath, it is characterised in that the spheroid is when the internal ring (2) is relatively rotated relative to the outer shroud (3) in the internal ring (2)
Above and in the outer shroud (3) roll and surround movement, and the internal ring (2) and/or the outer shroud (3) be not with
The track (8) of same race way diameter (d1, d2, d3, D1, D2, D3) is for the spheroid (5) with different-diameter.
2. bias ball bearing as claimed in claim 1, it is characterised in that the track (8) is delivered to the force component of axial direction
On spheroid (5).
3. bias ball bearing as claimed in claim 1, it is characterised in that the eccentric ball bearing (1) is with keeping the ball
Ball bearing retainer (7) of the body (5) at their distances each other.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013212043.5A DE102013212043B4 (en) | 2013-06-25 | 2013-06-25 | Eccentric ball bearings |
| DE102013212043.5 | 2013-06-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104251260A CN104251260A (en) | 2014-12-31 |
| CN104251260B true CN104251260B (en) | 2017-04-12 |
Family
ID=52106146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410320312.0A Expired - Fee Related CN104251260B (en) | 2013-06-25 | 2014-06-23 | Eccentric ball bearing |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104251260B (en) |
| DE (1) | DE102013212043B4 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5111712A (en) * | 1988-10-06 | 1992-05-12 | Carrier Corporation | Rolling element radial compliancy mechanism |
| JP2003322149A (en) * | 2002-05-08 | 2003-11-14 | Koyo Seiko Co Ltd | Eccentric thrust bearing |
| DE102010028598A1 (en) * | 2010-05-05 | 2011-11-10 | Robert Bosch Gmbh | eccentric |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102245915B (en) * | 2008-12-09 | 2017-03-01 | Ntn株式会社 | Bearing apparatus for wheel |
-
2013
- 2013-06-25 DE DE102013212043.5A patent/DE102013212043B4/en active Active
-
2014
- 2014-06-23 CN CN201410320312.0A patent/CN104251260B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5111712A (en) * | 1988-10-06 | 1992-05-12 | Carrier Corporation | Rolling element radial compliancy mechanism |
| JP2003322149A (en) * | 2002-05-08 | 2003-11-14 | Koyo Seiko Co Ltd | Eccentric thrust bearing |
| DE102010028598A1 (en) * | 2010-05-05 | 2011-11-10 | Robert Bosch Gmbh | eccentric |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104251260A (en) | 2014-12-31 |
| DE102013212043B4 (en) | 2021-01-28 |
| DE102013212043A1 (en) | 2015-01-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170412 Termination date: 20210623 |