CN106838266A - Bearing-like reducer retainer - Google Patents
Bearing-like reducer retainer Download PDFInfo
- Publication number
- CN106838266A CN106838266A CN201710220191.6A CN201710220191A CN106838266A CN 106838266 A CN106838266 A CN 106838266A CN 201710220191 A CN201710220191 A CN 201710220191A CN 106838266 A CN106838266 A CN 106838266A
- Authority
- CN
- China
- Prior art keywords
- ring
- bearing
- input
- reducer
- retainer
- 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.)
- Granted
Links
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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02069—Gearboxes for particular applications for industrial applications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
- F16H2057/0235—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly specially adapted to allow easy accessibility and repair
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention discloses the Bearing-like reducer retainer in mechanical transmission fields, including input ring, mounting ring and the output ring being sequentially distributed from top to bottom；The lateral wall for being input into ring is provided with some rounded equally distributed draw-in grooves, and holding plate is fixedly connected with the input ring lateral wall between adjacent draw-in groove；Mounting ring is located at the outside of input ring；The bottom of output ring is provided with multiple connecting holes.The retainer of this programme can carry out effective spacing to the roller of Bearing-like reducer, while the Load Balanced of Bearing-like reducer is distributed on roller and retainer, make to be more uniformly stressed inside Bearing-like reducer, can bear bigger load.
Description
Technical field
The present invention relates to mechanical transmission fields, and in particular to a kind of Bearing-like reducer retainer.
Background technology
Being applied to the reductor of robot field at present mainly has two kinds, and one kind is that Japanese Nabtesco Supreme Being people essence machine is public
The Rotate Vector decelerators of department（Abbreviation RV decelerators）, another kind is the harmonic speed reducer of Japanese Harmonic Drive,
They have almost monopolized the robot decelerator in the whole world.In joint of robot, because RV decelerators have rigidity higher
And rotating accuracy, RV decelerators are typically placed on the heavy duty position such as support, large arm, shoulder, and harmonic speed reducer is put
Put in forearm, wrist or hand.
The transmission of harmonic speed reducer is to realize that transformation of speed and power are passed by the elastomeric radial of thin wall flexible gear
Pass, thin wall flexible gear capacity and transmission stiffness are relatively low, while flexible gear also easily occurs because of cyclic deformation
Fatigue damage, therefore the precision transmission system in being mainly used in, gently loading, multiplex work industry robot wrist, the precision of hand subtract
Speed transmission.
RV decelerators are composited by the transmission of one-level involute cylindrical planetary gear and one-level cycloid pinwheel planetary gear transmission system.
The characteristics of in structure design is：After power is input into by driver pinion, three are driven to turn by three uniform planetary gears of circumference
Arm synchronously drives two panels to be staggered 180 degree of Cycloidal Wheels of eccentric cloth position, multiple tooth difference is formed between Cycloidal Wheel and pin tooth and is engaged, generation
Output torque exported by rotating speed output mechanism.RV decelerators have that compact conformation, gearratio be big, bearing capacity is strong and passes
Many advantages, such as dynamic stiffness is high.However, the basic structure of RV is still present defect.On the one hand, due to being passed using involute gear
It is dynamic, tooth face agglutination usually is produced because of the reason such as contact tooth is few, flank of tooth active force is big and flank of tooth relative sliding velocity is big, make
Tooth form abrasion is obtained, causes engagement bad, there is excess fretting wear between tooth form, the problems such as producing noise and generate heat；On the other hand, by
Engaged using multiple tooth difference with pin tooth in Cycloidal Wheel, although many under monodentate difference engagement situation compared with total number of teeth in engagement, not yet
Full engagement is reached, causes the presence of gap, engagement hour hands tooth and pendulum between engagement process middle part minute hand tooth and Cycloidal Wheel profile
Sliding friction is also easy to produce between line wheel, more serious abrasion can be caused to pin tooth and Cycloidal Wheel after long-term operating, produce noise and
Fever phenomenon, causes decelerator to fail and scraps when serious.
A kind of reductor of use bearing ball is now proposed, transformation of speed is carried out using multistage ball and power is transmitted, bag
Eccentric wheel, interior row's roller, race ring, outer row's roller and centre wheel housing are included, abrasion is improved using full engagement and pure rolling, is made an uproar
The problems such as sound, heating, but need to carry out spacing holding to ball using ball, while needs guarantee to bear sufficiently large
Radial and axial load, is now badly in need of the ball retainer that such a possesses the Bearing-like reducer of the effect above.
The content of the invention
It is poor to solve the problems, such as existing decelerator bearing capacity the invention is intended to provide Bearing-like reducer retainer.
To reach above-mentioned purpose, basic technology scheme of the invention is as follows：Bearing-like reducer retainer, including from top to bottom
Input ring, mounting ring and the output ring being sequentially distributed；The lateral wall for being input into ring is provided with some rounded equally distributed holdings
Plate, the top of the top higher than input ring of the holding plate；The bottom of output ring is provided with multiple connecting holes.
During practical application, input ring is easy to the input shaft and bias of input power as the input of Bearing-like reducer
Wheel is arranged on input ring, and mounting ring is used for location and installation retainer, the power that output ring is used for after output variable speed.Input ring
Upper end is used to place interior row's roller of race ring and rounded distribution in Bearing-like reducer, and being input into the inner side of ring is used to install fixed
The input shaft and eccentric wheel of position Bearing-like reducer, being input into the outside of ring is used to install outer row's roller of positioning Bearing-like reducer.Protect
Hold plate carries out spacing, protection for the outer row's roller to Bearing-like reducer, and spacing and transmission is carried out to race ring and interior row's roller
The reinforcement of structure.
Input shaft delivers power to interior row's roller, and interior row's roller delivers power to race ring, and race ring passes power
Outer row's roller is defeated by, outer row's roller coordinates promotion retainer to rotate with Bearing-like reducer shell, by the transmission reality of multistage roller
The transformation of speed of existing input power and power transmission.Holding plate is in close contact with the outer row's roller inside Bearing-like reducer, is easy to
Deliver power to retainer, holding plate carries out spacing to the race ring in Bearing-like reducer simultaneously, and axial direction is carried out to retainer
Mechanical structure with radial direction is strengthened, and the radial load that Bearing-like reducer is born when using is assigned to all outer rows and rolled by holding plate
Externally arranging roller by holding plate on post, when Bearing-like reducer bears axial load carries out spacing, is uniformly distributed axial load
Onto outer row's roller, retainer, race ring and interior row's roller, preventing outer row's roller from dislocation occur when bearing load causes bearing to subtract
The aggravation of fast machine inter deterioration, makes retainer uniform force, it is to avoid load centralization, enable retainer carry distortion power higher and
Shearing force.The retainer of this programme outer row's roller of Bearing-like reducer can be carried out it is spacing, while by the negative of Bearing-like reducer
Load is evenly distributed on roller and retainer, makes to be more uniformly stressed inside Bearing-like reducer, can bear bigger load.
Preferred scheme one, based on scheme a kind of improvement, the middle part outwardly convex of the input ring inwall forms limit
Position ring.Spacing ring is set can conveniently to position the input shaft positioning bearing in input ring, assembling is more facilitated,
Accurately；So set and also cause that spacing ring is formed in one with input ring, more preferably, the bearing capacity of spacing ring is more for shaping performance
It is good, make the overall performance of retainer more preferably, it is more reliable and more stable.
Preferred scheme two, preferably a kind of one improvement, sets on the input ring lateral wall between adjacent holding plate
There is draw-in groove.Setting draw-in groove can provide spacing and protection for outer row's roller, be received using process China and foreign countries row's roller intermittence in retainer
To the extruding of interior row's roller and centre wheel housing, certain buffer gap can be provided for outer row's roller by draw-in groove, roll outer row
Post can carry out elastic movement between adjacent holding plate, reduce outer row's roller and holding plate, interior row's roller, centre wheel housing it
Between rigidly extrude the harmful effects such as abrasion, noise that the larger sliding friction for causing brings.
Preferred scheme three, a kind of preferably two improvement, the cross section profile of the draw-in groove is arc-shaped.So set
Put and be easy to place ball in draw-in groove, make to be in rolling contact between ball and draw-in groove, frictional force is smaller, wear and tear smaller, be difficult life
Heat and generation noise.
A kind of preferred scheme four, preferably three improvement, holding plate is integrally formed on input ring lateral wall.One
It is body formed so that holding plate and retainer machine-shaping more facilitate, more preferably, mechanical property more preferably, further enhances axle to globality
Hold the bearing capacity of reductor.
A kind of preferred scheme five, preferably three improvement, holding plate is fixed by screws in input ring lateral wall
On.So set and cause that holding plate and input ring are assembled again after can processing respectively, the structure of single part is simpler, plus
Work manufacture more facilitates, and single holding plate is more convenient to carry out repair and replacement after damaging.
Preferred scheme six, preferably four or preferred scheme five a kind of improvement, set between input ring and mounting ring
Have a locating ring, be input into the diameter of the diameter less than locating ring of ring, the diameter of the diameter less than mounting ring of locating ring, output ring it is straight
Less than the diameter of mounting ring, the holding plate is positioned at the top of locating ring in footpath.The locating ring for so setting is easy to enter retainer
Row location and installation, also allows for being converted with by the sliding friction between retainer and other parts in the outside setting bearing of locating ring
It is rolling friction so that reductor internal friction reduces, further reduces noise, reduces abrasion.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment of the present invention middle (center) bearing reductor retainer；
Fig. 2 is the structural representation of embodiment of the present invention middle (center) bearing reductor.
Specific embodiment
Below by specific embodiment, the present invention is further detailed explanation：
Reference in Figure of description includes：Bearing plate 1, retainer 2, holding plate 21, interior row's roller 22, outer row's roller
23rd, input ring 24, mounting ring 25, locating ring 251, output ring 26, draw-in groove 27, spacing ring 28, connecting hole 29, centre wheel housing 3,
Cover plate 4, eccentric wheel 5, race ring 6.
Embodiment is substantially as shown in Figure 1：Bearing-like reducer retainer, including integrally formed be from top to bottom sequentially distributed
Circular input ring 24, mounting ring 25 and output ring 26, the middle part outwardly convex for being input into the inwall of ring 24 forms spacing ring 28；It is defeated
The lateral wall for entering ring 24 is provided with some circumferentially equally distributed draw-in grooves 27, and the cross section profile of draw-in groove 27 is arc-shaped, adjacent
Integrally formed with rectangular holding plate 21 on the lateral wall of input ring 24 between draw-in groove 27；Mounting ring 25 is located at input ring 24
Outside, the upper end of mounting ring 25 is stepped to form locating ring 251；The bottom of output ring 26 is along the circumferential direction provided with multiple screw threads
Connecting hole 29.
In the present embodiment, during practical application, Bearing-like reducer is as shown in Fig. 2 including cover plate 4, centre wheel housing 3, keep
Frame 2 and bearing plate 1, cover plate 4 are located at the top of retainer 2, and centre wheel housing 3 is located at the outside of retainer 2, bearing plate 1
Positioned at the lower section of retainer 2, centre wheel housing 3 is fixed with bearing plate 1 to retainer 2.Input ring 24 is used as axle
The input of reductor is held, spacing ring 28 is easy to be arranged on the input shaft of input power and eccentric wheel 5 on input ring 24, input
Interior row's roller 22 that the upper ends of ring 24 are distributed in a ring, eccentric wheel 5 is located at the middle part of input ring 24, eccentric wheel 5 and interior row
Roller 22 is in close contact, and the outside of interior row's roller 22 sets race ring 6, and the outside of race ring 6 is in close contact with outer row's roller 23,
Outer row's roller 23 is located between two neighboring holding plate 21, and the outside of retainer 2 is spacing and guiding centre wheel housing 3,
The inwall of centre wheel housing 3 is provided with the class circular orbit formed for the slot rounding off of arc by some sections, outer row's roller 23
It is in close contact with class circular orbit.Input shaft delivers power to interior row's roller 22 by eccentric wheel 5, and interior row's roller 22 passes power
Race ring 6 is defeated by, race ring 6 delivers power to outer row's roller 23, and outer row's roller 23 coordinates promotion to keep with centre wheel housing 3
Frame 2 is rotated, the connection output parts of connecting hole 29 on output ring 26, so realizes input power by the transmission of multistage roller
Transformation of speed and power transmission.Holding plate 21 is in close contact with outer row's roller 23, is easy to power to be transferred to retainer 2, keeps
The mechanical structure that plate 21 carries out axially and radially to retainer 2 simultaneously is strengthened, and the load that Bearing-like reducer is born when using passes through
Holding plate 21 is assigned on all outer row's rollers 23, makes the uniform force of retainer 2, it is to avoid load centralization, makes the radial direction of retainer 2
Torsional property and axial anti-bending strength more preferably, can carry bigger external pressure so that the bearing capacity of Bearing-like reducer is more
Height, service life is longer.
Above-described is only embodiments of the invention, and the general knowledge such as known concrete structure and/or characteristic is herein in scheme
Excessive description is not made.It should be pointed out that for a person skilled in the art, on the premise of structure of the present invention is not departed from, also
Some deformations and improvement can be made, such as holding plate 21 can also be block, strip, can be trapezoidal, taper or abnormity,
The form such as can be connected by screw bolts, weld to fix, these should also be considered as protection scope of the present invention, these all without influence this
Invent the effect and practical applicability implemented.This application claims protection domain should be defined by the content of its claim,
Specific embodiment in specification etc. records the content that can be used for explaining claim.
Claims (7)
1. Bearing-like reducer retainer, it is characterised in that including the input ring, mounting ring and the output that are sequentially distributed from top to bottom
Ring；The lateral wall for being input into ring is provided with some holding plates equally distributed in a ring, and the top of the holding plate is higher than input ring
Top；The bottom of output ring is provided with multiple connecting holes.
2. Bearing-like reducer retainer according to claim 1, it is characterised in that：The middle part of the input ring inwall is outside
Convex to form spacing ring.
3. Bearing-like reducer retainer according to claim 2, it is characterised in that：Outside input ring between adjacent holding plate
Side wall is provided with draw-in groove.
4. Bearing-like reducer retainer according to claim 3, it is characterised in that：The cross section profile of the draw-in groove is circular arc
Shape.
5. Bearing-like reducer retainer according to claim 4, it is characterised in that：The holding plate is integrally formed in input
On ring lateral wall.
6. Bearing-like reducer retainer according to claim 4, it is characterised in that：The holding plate is fixed by screws in
On input ring lateral wall.
7. the Bearing-like reducer retainer according to claim 5 or 6, it is characterised in that：Input ring and the mounting ring it
Between be provided with locating ring, be input into the diameter of the diameter less than locating ring of ring, the diameter of the diameter less than mounting ring of locating ring, output ring
Diameter less than mounting ring diameter, the holding plate be located at locating ring top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710220191.6A CN106838266B (en) | 2017-04-06 | 2017-04-06 | Bearing speed reducer retainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710220191.6A CN106838266B (en) | 2017-04-06 | 2017-04-06 | Bearing speed reducer retainer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106838266A true CN106838266A (en) | 2017-06-13 |
| CN106838266B CN106838266B (en) | 2023-02-03 |
Family
ID=59146506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710220191.6A Active CN106838266B (en) | 2017-04-06 | 2017-04-06 | Bearing speed reducer retainer |
Country Status (1)
| Country | Link |
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| CN (1) | CN106838266B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139875A (en) * | 2017-06-27 | 2019-01-04 | 广东德昌电机有限公司 | Geared system, retarder and actuator |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106838266B (en) | 2023-02-03 |
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