CN104373573A - Star wheel speed reducer with zinc base alloy bearing supporting output shaft - Google Patents
Star wheel speed reducer with zinc base alloy bearing supporting output shaft Download PDFInfo
- Publication number
- CN104373573A CN104373573A CN201410396931.8A CN201410396931A CN104373573A CN 104373573 A CN104373573 A CN 104373573A CN 201410396931 A CN201410396931 A CN 201410396931A CN 104373573 A CN104373573 A CN 104373573A
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- China
- Prior art keywords
- bearing
- output shaft
- base alloy
- zinc base
- alloy bearing
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- 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.)
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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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
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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
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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
-
- 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
- F16H2700/00—Transmission housings and mounting of transmission components therein; Cooling; Lubrication; Flexible suspensions, e.g. floating frames
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention relates to a star wheel speed reducer with a zinc base alloy bearing supporting an output shaft. The star wheel speed reducer comprises a box body, a transmission component and an output component. The star wheel speed reducer is characterized in that a bearing is used for supporting an input shaft in an inner hole of a small cylinder of a round end cover connected with the input end of the box body; the transmission component comprises planet gears, an inner gear ring, an eccentric bearing on the input shaft, and a fixing rack, the fixing rack is formed by connecting and fixing a left disc and the round end cover through shaft pins, the inner gear ring is connected with a disc of the output shaft, a wear-resisting ring is arranged on the journal of the output shaft and supported in the zinc base alloy bearing, and the zinc base alloy bearing is connected to an inner hole in the output end of the box body; a sponge with the section in a T shape is arranged in the output shaft, an inner hole of a load balance ring is connected with the zinc base alloy bearing, and the zinc base alloy bearing is supported on a wear-resisting ring which is arranged on the outer circle of the small cylinder. The star wheel reducer with the zinc base alloy bearing supporting the output shaft has the advantages that the price of the zinc base alloy bearing can be 60-80% lower; the star wheel speed reducer is stable in working, free of noise, small in radial size, high bearing capacity, long in service life, simple in structure, convenient to demount and mount and good in impact resistance and vibration absorption performance.
Description
[technical field]
The present invention relates to the improvement of K-V-H mechanism (N-type) planet technology in universal planetary technical field, be specifically related to the improvement of planetary-gear speed reducer output shaft block bearing, a kind of planetary-gear speed reducer of zinc base alloy bearing supporting output shaft.
[background technique]
Universal planetary transmission comprises 2K-H negative mechanisms (NGW type) and the large class of K-V-H mechanism (N-type) two, and K-V-H mechanism (N-type) comprises cycloid and involute.The output shaft of existing universal planetary transmission all adopts rolling bearing to support, and comparatively sliding bearing is high a lot of for the price of rolling bearing, especially high-power, high pulling torque type.
Research finds, universal planetary transmission output shaft can adopt sliding supported condition, as long as ensure that there is enough, clean lubricant oil in sliding supported condition face, this is that " bearing due to (planetary reducer) output shaft does not bear radial working load (only bearing the deadweight of output planetary rack device), and thus bearing size is only determined by structural requirement." (" design and manufaction of Planetary Involute Gear " chapter 12 calculated examples)
Output shaft is if use sliding supported condition instead, and its Advantageous Effects is that bearing price can save 60-80%:
Through looking into, what above-mentioned calculated example was selected is the light ball bearing 9707/780 of single-row spy, and two bearings amounts to heavy 624kg, valency 44450 yuan.As changed casting Zine containing alloy sliding bearing into, weight about can alleviate 500kg, save nearly 40,000 yuan.
The advantage of casting Zine containing alloy sliding bearing is:
1, good casting property, foundry goods is fine and close, and the little heat conductivity of friction factor is higher, and finish turning surface roughness can reach 1.6;
2, weight ratio copper is light by 40%, and cost is lower than tin bronze by more than 40%;
3, working life is tin bronze 2 ~ 3 times, has self-lubricating property and shock-absorbing function, is applicable to middle low-speed heave-load occasion;
4, have nonmagnetic, no-spark performance, in inflammable and explosive dangerous situation safety.
[summary of the invention]
Aeroplane engine main bearing can adopt sliding bearing, speed reducer be assorted petty can not?
The object of the invention is, the rolling bearing providing zinc base alloy bearing to replace existing planetary-gear speed reducer output shaft to adopt, a kind of planetary-gear speed reducer of zinc base alloy bearing supporting output shaft.
The theoretical foundation that sliding bearing can replace rolling bearing is as follows:
" plain bearing structure is simple, easily manufactured, bearing capacity large, but high stability is poor, easy bad student's oil whip." (Wang Wenbin " mechanical design handbook " rolls up 3.21-4 page)
" in normal state, sliding bearing abrasion rate is very low, and the swarf particles of formation is small-sized, and quantity is also few." (Bu Yan " practical bearing technology handbook " 492 pages)
" aeroplane engine main bearing adopts general sliding bearing; parameter: specific pressure allowable [p]=12-22 (MPa); linear velocity allowable [v]=8-10 (m/s), [pv] allowable value≤80 (MPa) (m/s)." (Bu Yan " practical bearing technology handbook " 349 pages)
" casting Zine containing alloy be applicable in, low speed (≤7-10m/s), heavy duty (25-30MPa), the bearing that works under (allowable contact stress σ=550MPa) condition." (6 pages, Cheng great Xian " mechanical design handbook " bearing)
The key of technical solution of the present invention is: ensure that there are enough clear gusolines in zinc base alloy sliding supported condition face." outer fork-like farm tool used in ancient China particle totally, is not had to be the major reason that sliding bearing lost efficacy." (" mechanical design handbook " rolls up 4.27-227 page)
Described casing input end face connects nose circle lid, and described nose circle lid endoporus bearing supports input shaft;
Further, described transmission part comprises two planet wheels of phase difference 180 °, ring gear, is located at capacity eccentric bearing on input shaft and fixed frame, left disk and nose circle lid are connected and fixed formation by the uniform bearing pin of described fixed frame, described two planet wheel clutch shaft bearings are bearing on the eccentric segment of uniform double-eccentric shaft, described double-eccentric shaft two ends bearing is bearing in left disk and nose circle lid respective aperture respectively, described ring gear is connected on the disk of output shaft, described two planet wheels and ring gear engagement driving.
Again further, described output shaft neck is provided with wear-resisting ring, and described wear-resisting ring is bearing in zinc base alloy bearing, and described zinc base alloy bearing is connected to casing output terminal endoporus;
" cylinder-disc type " polyester oil suction sponge of " T " word section is provided with in described output shaft, cylindrical end and output shaft axis hole form a shoe cream room Q, described shoe cream room Q lubricant oil flows into alloy bearing and wear-resisting ring gap from output shaft aperture, and disk end is located at radial hole uniform with disc circumference on output shaft disk end face and communicates.
[technique effect]
Although each independent technical characteristics of the present invention is completely known, support each other, and can following Advantageous Effects be produced:
(1) zinc base alloy bearing ratio with internal diameter rolling bearing, price can reduce 60-80%, and the larger effect of internal diameter is more remarkable;
(2) zinc base alloy sliding bearing stable working, noise free, radial dimension is little, bearing capacity is large;
(3) sliding bearing abrasion rate is the advantages such as very low, long service life is that rolling bearing is irreplaceable;
(4) structure simple, manufacture, processing, easy accessibility; There is good shock-resistant and good absorbing performance;
(5) can save Bearing Steel 60-80%, old zinc base alloy sliding bearing is recyclable to be cast again.
[accompanying drawing explanation]
Fig. 1. embodiment of the present invention structural representation
[embodiment]
Below in conjunction with accompanying drawing, the present invention is encyclopaedized:
With reference to Fig. 1. a kind of planetary-gear speed reducer of zinc base alloy bearing supporting output shaft, comprises casing 1 and the transmission part be arranged in casing 1 and output shaft 4, it is characterized in that:
Described casing 1 input end face connects nose circle lid 7, supports input shaft 10 in described nose circle lid 7 with bearing 9;
Described transmission part comprises capacity eccentric bearing 8 on two planet wheels 12 of phase difference 180 °, ring gear 14, input shaft 10 and fixed frame, left disk 15 is connected and fixed formation with nose circle lid 7 by the uniform pivot pin 13 of described fixed frame, described two planet wheels 12 are bearing in bearing on the eccentric segment of uniform double-eccentric shaft 6, the two ends bearing of described double-eccentric shaft 6 is bearing in left disk 15 respectively with nose circle lid 7 respective aperture, described ring gear 14 is connected with the disk 16 of output shaft 4, described two planet wheels 12 and ring gear 14 engagement driving.
Described output shaft 4 axle journal is provided with wear-resisting ring 2, and described wear-resisting ring 2 is bearing in zinc base alloy bearing 5, and described zinc base alloy bearing 5 is connected to casing 1 output terminal endoporus;
" cylinder-disc type " polyester oil suction sponge 3 of " T " word section is provided with in described output shaft 4, cylindrical end and output shaft 4 axis hole form a shoe cream room Q, described shoe cream room Q lubricant oil flows into alloy bearing and wear-resisting ring gap from output shaft 4 aperture, and disk end is located at the radial hole uniform with disc circumference on output shaft 4 disk end face and communicates, polyester oil suction sponge has excellent mechanical strength: wear-resisting, wear-corrosion resistance, high temperature resistant, stretchability strong, the oil resistant of good springiness and uniqueness is anti-aging, the characteristic of solvent resistant.After casing oil sump lubricant oil is sucked by " cylinder-disc type " polyester oil suction sponge filter core, the oil that its column part stores relies on gravity constantly to drip, accumulate in shoe cream room Q, the rubbing surface between sliding bearing and wear-resisting ring is entered by oilhole little on output shaft, lubricant oil in a steady stream Fill fills, and guarantees that rubbing surface has very long working life.
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, anyly all belongs to protection scope of the present invention to the scheme after simple transformation of the present invention.
Claims (1)
1. a planetary-gear speed reducer for zinc base alloy bearing supporting output shaft, comprises casing (1) and the transmission part be arranged in casing (1) and output shaft (4), it is characterized in that:
Described casing (1) input end face connects nose circle lid (7), the interior bearing of described nose circle lid (7) (9) supporting input shaft (10);
Described transmission part comprises two planet wheels (12) of phase difference 180 °, ring gear (14), capacity eccentric bearing (8) on input shaft (10) and fixed frame, left disk (15) and nose circle lid (7) are connected and fixed formation by the uniform pivot pin (13) of described fixed frame, described two planet wheels (12) are bearing on the eccentric segment of uniform double-eccentric shaft (6) with bearing, the two ends bearing of described double-eccentric shaft (6) is bearing in left disk (15) respectively with nose circle lid (7) respective aperture, described ring gear (14) is connected with the disk (16) of output shaft (4), described two planet wheels (12) and ring gear (14) engagement driving.
Described output shaft (4) axle journal is provided with wear-resisting ring (2), described wear-resisting ring (2) is bearing in zinc base alloy bearing (5), and described zinc base alloy bearing (5) is connected to casing (1) output terminal endoporus;
" cylinder-disc type " polyester oil suction sponge (3) of " T " word section is provided with in described output shaft (4), cylindrical end and output shaft (4) axis hole form a shoe cream room (Q), described shoe cream room (Q) lubricant oil flows into alloy bearing and wear-resisting ring gap from output shaft (4) aperture, and disk end is located at radial hole uniform with disc circumference on output shaft (4) disk end face and communicates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410396931.8A CN104373573A (en) | 2014-08-06 | 2014-08-06 | Star wheel speed reducer with zinc base alloy bearing supporting output shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410396931.8A CN104373573A (en) | 2014-08-06 | 2014-08-06 | Star wheel speed reducer with zinc base alloy bearing supporting output shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104373573A true CN104373573A (en) | 2015-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410396931.8A Pending CN104373573A (en) | 2014-08-06 | 2014-08-06 | Star wheel speed reducer with zinc base alloy bearing supporting output shaft |
Country Status (1)
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| CN (1) | CN104373573A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179605A (en) * | 2015-09-18 | 2015-12-23 | 陈伟 | Star wheel speed reducer for digital display non-meshing area oil temperature |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2751264A (en) * | 1954-01-21 | 1956-06-19 | Gen Electric | Self-lubricating journal pin |
| CN102889341A (en) * | 2011-07-17 | 2013-01-23 | 吴小杰 | Large star wheel gear box |
| CN102996780A (en) * | 2012-10-09 | 2013-03-27 | 吴小杰 | Grease lubricated star wheel speed reducer for bearing |
| CN103291846A (en) * | 2012-02-22 | 2013-09-11 | 周晓汀 | Small tooth difference planetary transmission device adopting pin hole output and provided with adjustable clearance |
-
2014
- 2014-08-06 CN CN201410396931.8A patent/CN104373573A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2751264A (en) * | 1954-01-21 | 1956-06-19 | Gen Electric | Self-lubricating journal pin |
| CN102889341A (en) * | 2011-07-17 | 2013-01-23 | 吴小杰 | Large star wheel gear box |
| CN103291846A (en) * | 2012-02-22 | 2013-09-11 | 周晓汀 | Small tooth difference planetary transmission device adopting pin hole output and provided with adjustable clearance |
| CN102996780A (en) * | 2012-10-09 | 2013-03-27 | 吴小杰 | Grease lubricated star wheel speed reducer for bearing |
Non-Patent Citations (1)
| Title |
|---|
| 无: "AF-90高强度减磨锌基合金——一种降低滑动轴承类产品成本的新材料", 《铸造设备研究》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179605A (en) * | 2015-09-18 | 2015-12-23 | 陈伟 | Star wheel speed reducer for digital display non-meshing area oil temperature |
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Application publication date: 20150225 |
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