CN105546048A - RV reducer based on granular damping roller pin - Google Patents
RV reducer based on granular damping roller pin Download PDFInfo
- Publication number
- CN105546048A CN105546048A CN201610028416.3A CN201610028416A CN105546048A CN 105546048 A CN105546048 A CN 105546048A CN 201610028416 A CN201610028416 A CN 201610028416A CN 105546048 A CN105546048 A CN 105546048A
- Authority
- CN
- China
- Prior art keywords
- needle roller
- roller pin
- damping
- shell
- retarder
- 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.)
- Pending
Links
Classifications
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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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/01—Vibration-dampers; Shock-absorbers using friction between loose particles, e.g. sand
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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
- F16H57/028—Gearboxes; Mounting gearing therein characterised by means for reducing vibration or noise
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Friction Gearing (AREA)
Abstract
The invention discloses an RV reducer based on a granular damping roller pin, comprising a roller pin and a shell. The roller pin is subjected to hollowing treatment, damping granules with volume ratio of 50-70% are filled into the roller pin, and rubber vibration reduction pieces are adhered to two ends of the roller pin; and simultaneously, a limiting piece is welded at one end of the inner wall of a shell hole for placing the roller pin so as to limit the vertical displacement of the roller pin. According to the invention, vibration produced by rotation of the RV reducer can be quickly attenuated by a damping effect produced by collision between roller pin granules and between the granules and the inner wall of the roller pin, so as to achieve a good damping effect in different directions and reduce collision between the roller pin and a planet carrier. The RV reducer is reasonable in structure, rapid in response, good in damping effect, applicable to various severe environments, and extremely high in reliability, and can protect all main components and reduce production and installation difficulties, thus improving the transmission precision and stationarity of the RV reducer.
Description
Technical field
The present invention relates to precision speed reduction device field, a kind of RV retarder based on particle damping needle roller.
Background technique
RV transmission is new a kind of transmission of rising, and it develops out on the basis of traditional Cycloid drive, have lot of advantages as: gear range is large, and transmission efficiency is high, and its transmission efficiency is generally 0.85 ~ 0.92.And compared with harmonic speed reducer conventional in robot, RV retarder volume is little, lightweight, rigidity is large, bearing capacity is strong, kinematic accuracy is high, return difference is little, the life-span is long, will significantly reduce along with increasing kinematic accuracy service time unlike harmonic driving, therefore RV retarder is applied increasingly extensive in robot, particularly high precision machines people field, and replace harmonic speed reducer step by step.
At present, domestic RV retarder has some following shortcomings: 1. during heavy load transmission, and cycloid wheel stress deformation makes ess-strain increase, and causes cycloid wheel to wear and tear and aggravates and transmission accuracy reduction; 2. when needle roller is installed, do not have spacing up and down, easily produce vibration & noise when RV retarder operates, particularly industrial robot suddenly stops at work, anxious startup can produce impact force, causes needle roller and up-downgoing carrier to collide.
In addition due to some cause specific, comprise and lack production equipment special and correct manufacturing process, produce vibration & noise when domestic RV retarder operates, cause galloping, working life, transmission accuracy, dynamic characteristic are all poor compared with imported product.
For some above-mentioned problems, the vibration & noise produced when how to suppress RV retarder to operate, reduces needle roller and up-downgoing carrier is collided, and the working life of improving kinematic accuracy and main parts size is the difficult point of designing for manufacturing RV retarder.
Summary of the invention
Target of the present invention utilizes particle damped vibration attenuation technology to provide a kind of rational in infrastructure, and smooth running, noise is low, the RV retarder based on particle damping needle roller that transmission accuracy is high.
The RV retarder based on particle damping needle roller that the present invention proposes, comprise bent axle 1, input shaft 2, flange 3, needle roller 4, output mechanism 5, shell 6 and cycloid wheel 7, wherein: shell 6 center is provided with input shaft 2, the both sides of described input shaft 2 are meshed with the bent axle 1 of symmetrical distribution by gear, two bent axles 1 respectively by bearings in the endoporus of flange 3 and output mechanism 5.It is in the cycloid wheel 7 of 180 ° that bent axle 1 is connected to two panels phase difference by bearing; Flange 3 and output mechanism 5 are connected by pin connection, and needle roller 4 half is embedded in pin perforation uniform on shell 6, and described pin perforation inwall one end is welded with banking stop 11, for limiting needle roller about 4 play; Output mechanism 5 is promoted by the spring bearing of bent axle 1, transmits rotating speed and moment of torsion; Needle roller 4 liang of STHs, the inwall in described hole are inlaid with abrasive rubber interlayer 10, and described hole is built with several vibration damping particles 9, and the opening in described hole is provided with rubber damping sheet 8; Two panels cycloid wheel 7 is installed on input shaft 2 both sides in 180 ° of symmetries, and engages each other with needle roller 4.Needle roller two ends sticking rubber vibration-damping sheet, the noise and vibration produced when reducing needle roller play, protection critical piece.Arrange abrasive rubber interlayer to needle roller inwall, minimizing particle and needle roller inwall collide the noise produced, and improve damping.
In the present invention, the attribute such as kind, quantity, size of the particle of needle roller inside can be placed according to actual conditions such as RV retarder size and application places, kind comprises plastics, rubber, metal etc., the 40-90% of its quantity duty cavity volume, its diameter is 0.1mm-2mm, produce different dampening range, make it have larger Applicable scope.
Beneficial effect of the present invention is:
Based on the RV retarder of particle damping needle roller, utilize the working principle of damping particles vibration damping, make RV retarder have good vibration damping, vibration isolation and shock resistance overall characteristic: 1. needle roller, some particles are equipped with in needle roller inside, and at needle roller two ends sticking rubber vibration-damping sheet; 2. vibration damping particle, according to RV retarder actual demand, adopts different materials, quantity and size to make spherical, and is placed in needle roller inner chamber; 3. abrasive rubber interlayer, inlays abrasive rubber interlayer at needle roller inwall, and minimizing particle and vibration damper inwall collide the noise produced, and improves damping.4. shell, to shell aperture inwall one end welded limiting sheet that needle roller is laid, reduces needle roller and up-downgoing carrier collision frequency.
The present invention is rational in infrastructure, the noise and vibration produced when can reduce needle roller play, protects each main parts size, reduces making and installation difficulty.Improve transmission accuracy and the stationarity of RV retarder.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described
Fig. 1 is RV gear reducer mechanism sketch;
In Fig. 1: 1, bent axle, 2, input shaft, 3, flange, 4, needle roller, 5, output mechanism, 6, shell, 7, cycloid wheel;
Fig. 2 is shell of the present invention, needle roller and cycloid wheel structural relation schematic diagram;
In Fig. 2: 4, needle roller, 6, shell, 7, cycloid wheel, 8, rubber damping sheet, 9, vibration damping particle, 10, abrasive rubber interlayer, 11, banking stop;
Fig. 3 is needle roller structure schematic diagram of the present invention;
Fig. 4 is metal spacing chip architecture schematic diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment 1:
As shown in Figure 1, input shaft 2 is equipped with at shell 6 center, and input shaft 2 engages respectively by two bent axles 1 in gear and left and right, and two, left and right bent axle 1 uses two bearings respectively in flange 3 and output mechanism 5 endoporus.It is in the cycloid wheel 7 of 180 ° that bent axle 1 is connected to two panels phase difference by bearing.Flange 3 and output mechanism 5 cottered joint structure forms rigid body, and needle roller 4 half to be embedded on shell 6 in uniform pin perforation.Output mechanism 5 is promoted by the spring bearing of bent axle 1, transmits rotating speed and moment of torsion.
As shown in Figure 2, a kind of RV retarder based on particle damping needle roller, comprises needle roller 4, and cycloid wheel 7 and shell 6 are inlayed abrasive rubber interlayer 10 at needle roller 4 inwall, then some particles are housed, and at needle roller 4 two ends sticking rubber vibration-damping sheet 8; Two panels cycloid wheel 7 in 180 ° of symmetrical installations, and engages each other with needle roller 4; To shell aperture inwall one end weld metal banking stop 11 that needle roller 4 is laid, reduce needle roller 4 and up-downgoing carrier collision frequency.
As shown in Figure 3, needle roller structure schematic diagram of the present invention.At needle roller 4 liang of STHs, inlay abrasive rubber interlayer 10, then at the end vulcanized rubber vibration-damping sheet 8 in hole, fill the vibration damping particle 9 of some and material.Again at the end vulcanized rubber vibration-damping sheet 8 in another hole, vibration damping particle 9 is encapsulated in needle roller 4 inner.
As shown in Figure 4, metal spacing chip architecture schematic diagram of the present invention, processing metal spacing sheet as shown in Figure 4, is welded on the shell aperture inwall two ends that needle roller is laid.
Claims (2)
1. based on the RV retarder of particle damping needle roller, comprise bent axle (1), input shaft (2), flange (3), needle roller (4), output mechanism (5), shell (6) and cycloid wheel (7), it is characterized in that shell (6) center is provided with input shaft (2), the both sides of described input shaft (2) are meshed with the bent axle (1) of symmetrical distribution by gear, two bent axles (1) respectively by bearings in the endoporus of flange (3) and output mechanism (5); It is in the cycloid wheel (7) of 180 ° that bent axle (1) is connected to two panels phase difference by bearing; Flange (3) and output mechanism (5) are connected by pin connection, needle roller (4) is partly embedded in the upper uniform pin perforation of shell (6), described pin perforation inwall one end is welded with banking stop (11), for limiting needle roller (4) play up and down; Output mechanism (5) is promoted by the spring bearing of bent axle (1), transmits rotating speed and moment of torsion; Needle roller (4) two STH, the inwall in described hole is inlaid with abrasive rubber interlayer (10), and described hole is built with several vibration damping particles (9), and the opening in described hole is provided with rubber damping sheet (8); Two panels cycloid wheel (7) is installed on input shaft (2) both sides in 180 ° of symmetries, and engages each other with needle roller (4); Needle roller two ends sticking rubber vibration-damping sheet, the noise and vibration produced when reducing needle roller play, guard block; Arrange abrasive rubber interlayer to needle roller inwall, minimizing particle and needle roller inwall collide the noise produced, and improve damping.
2. RV retarder according to claim 1, it is characterized in that the kind of the particle of needle roller inside, quantity, size attribute are placed according to RV retarder size and application places actual conditions, kind comprises plastics, rubber, metal, the 40-90% of its quantity duty cavity volume, its diameter is 0.1mm-2mm, produce different dampening range, make it have larger Applicable scope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610028416.3A CN105546048A (en) | 2016-01-18 | 2016-01-18 | RV reducer based on granular damping roller pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610028416.3A CN105546048A (en) | 2016-01-18 | 2016-01-18 | RV reducer based on granular damping roller pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105546048A true CN105546048A (en) | 2016-05-04 |
Family
ID=55825476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610028416.3A Pending CN105546048A (en) | 2016-01-18 | 2016-01-18 | RV reducer based on granular damping roller pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105546048A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195088A (en) * | 2016-09-18 | 2016-12-07 | 厦门大学 | Multi-lumen shaft system granule damper |
| CN109403487A (en) * | 2018-11-06 | 2019-03-01 | 同济大学 | A kind of used matter damper of half active flexible particles collision |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5365842A (en) * | 1992-04-10 | 1994-11-22 | Rockwell International Corporation | Press cylinder with non-obstructive particle damping |
| DE102004000038A1 (en) * | 2003-11-13 | 2005-07-28 | Cetex Chemnitzer Textilmaschinenentwicklung Ggmbh | Vibration damping of long machine parts, e.g. rollers or support beams on knitting machines, involves filling the hollow part with damping material |
| CN101725656A (en) * | 2010-01-14 | 2010-06-09 | 南京航空航天大学 | Hollow shafting particle damper |
| CN102410355A (en) * | 2011-08-04 | 2012-04-11 | 中国科学院过程工程研究所 | Damping vibration attenuation gear |
| CN104791424A (en) * | 2015-04-21 | 2015-07-22 | 同济大学 | RV speed reducer with shaped roller pins |
-
2016
- 2016-01-18 CN CN201610028416.3A patent/CN105546048A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5365842A (en) * | 1992-04-10 | 1994-11-22 | Rockwell International Corporation | Press cylinder with non-obstructive particle damping |
| DE102004000038A1 (en) * | 2003-11-13 | 2005-07-28 | Cetex Chemnitzer Textilmaschinenentwicklung Ggmbh | Vibration damping of long machine parts, e.g. rollers or support beams on knitting machines, involves filling the hollow part with damping material |
| CN101725656A (en) * | 2010-01-14 | 2010-06-09 | 南京航空航天大学 | Hollow shafting particle damper |
| CN102410355A (en) * | 2011-08-04 | 2012-04-11 | 中国科学院过程工程研究所 | Damping vibration attenuation gear |
| CN104791424A (en) * | 2015-04-21 | 2015-07-22 | 同济大学 | RV speed reducer with shaped roller pins |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195088A (en) * | 2016-09-18 | 2016-12-07 | 厦门大学 | Multi-lumen shaft system granule damper |
| CN109403487A (en) * | 2018-11-06 | 2019-03-01 | 同济大学 | A kind of used matter damper of half active flexible particles collision |
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| PB01 | Publication | ||
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Application publication date: 20160504 |