CN102597577B - Bearing unit - Google Patents
Bearing unit Download PDFInfo
- Publication number
- CN102597577B CN102597577B CN201080047905.4A CN201080047905A CN102597577B CN 102597577 B CN102597577 B CN 102597577B CN 201080047905 A CN201080047905 A CN 201080047905A CN 102597577 B CN102597577 B CN 102597577B
- Authority
- CN
- China
- Prior art keywords
- gear module
- bearing unit
- tooth
- bearing
- gear
- 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
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 241000278713 Theora Species 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000003754 machining Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 230000003247 decreasing effect Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- 230000011218 segmentation Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000005435 mesosphere Substances 0.000 description 1
- 238000012958 reprocessing Methods 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
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
-
- 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
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
-
- 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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/12—Toothed members; Worms with body or rim assembled out of detachable parts
-
- 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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
- F16H2055/176—Ring gears with inner teeth
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
- General Details Of Gearings (AREA)
- Sliding-Contact Bearings (AREA)
- Gear Transmission (AREA)
Abstract
Provided is a bearing unit wherein the accuracy of teeth is ensured when the bearing unit is machined, the production time is reduced, the production cost is reduced, and the reduction of the accuracy of teeth due to unevenness of a material, machining strain, heat strain, etc., is suppressed, so that noise or uneven rotation generated during an operation is prevented, and the durability is improved. A bearing unit (100) comprises a cylindrical gear (110) having teeth (111) which mesh with another gear (150) and a flange (132) which constitutes a bearing, on the inner periphery and the outer periphery of the cylindrical gear. The cylindrical gear (110) is formed by stacking and affixing a plurality of gear modules (120, 130, 140) in the axial direction.
Description
Technical field
The present invention relates to bearing unit, it is made up of the cylindrical gears respectively in inner circumferential or periphery with the tooth be meshed with other gears and the flange forming bearing, especially relates to the bearing unit being applicable to the rotary part being applied to the big machinery such as construction plant or hoist.
Background technique
In the past, be known to a kind of bearing unit, it is made up of the cylindrical gears respectively in inner circumferential or periphery with the tooth be meshed with other gears and the flange forming bearing.
Known bearing unit utilizes the lathes such as gear cutting machine to be formed (see patent documentation 1) by a blank processing and fabricating.
Prior art document
Patent documentation
Patent documentation 1: No. 2005-61574, Japanese Unexamined Patent Publication (the 5th page, Fig. 2)
Summary of the invention
Above-mentioned known bearing unit is large-scale and the axial length of tooth is longer, therefore is difficult to adding the precision guaranteeing tooth man-hour, and also has the problem that production time is long, fabricating cost is also very high.
In addition, the impact of the strain in the reprocessings such as the strain that discontinuity of material, machining cause or heat treatment also causes the precision of tooth lower, so noise when causing running and rotate uneven, and likely there are wearing and tearing and breakage etc., durability has problems.
The present invention is exactly the problem that will solve prior art as above, namely, the object of this invention is to provide following bearing unit: it can guarantee the precision of tooth adding man-hour, shorten production time, reduce fabricating cost, simultaneously, can suppress, because of discontinuity of material and the precise decreasing of processing the tooth that strain, thermal strain etc. cause, prevent noise when operating and rotate uneven, and improve durability.
Invention involved by the technical program 1 is a kind of bearing unit, it is made up of the cylindrical gears respectively in inner circumferential or periphery with the tooth be meshed with other gears and the flange forming bearing, described cylindrical gears will have multiple gear modules overlying multiple layers vertically of the tooth be meshed with other gears in inner circumferential or periphery, and be fixed and formed, described problem can be solved thus.
Invention involved by the technical program 2 is on the basis of the structure of the bearing unit described in technological scheme 1, described multiple gear module is along the circumferential direction divided into multiple in all layers, described cylindrical gears is by the phase shifting of the split position of multiple gear module, and carry out overlap fixing vertically and formed, described problem can be solved further thus.
Invention involved by the technical program 3 is on the basis of the structure of the bearing unit described in technological scheme 1 or 2, described cylindrical gears is by the phase shifting of the tooth of multiple gear module, and carry out overlap fixing vertically and formed, described problem can be solved further thus.
Invention involved by the technical program 4 is on the basis of the structure of bearing unit in technological scheme 1 to 3 described in any one, the periphery of at least one deck gear module of the axis in described multiple gear module or inner circumferential form the flange of described formation bearing, can solve described problem further thus.
Invention involved by the technical program 5 is on the basis of the structure of bearing unit in technological scheme 1 to 4 described in any one, the tooth of described gear module at least has concave groove portion at the ora terminalis with the adjacent side of the tooth of other gear modules, can solve described problem further thus.
Invention involved by the technical program 6 is that on the basis of the structure of bearing unit in technological scheme 1 to 5 described in any one, described gear module is formed by common gear material and implements heat treatment, can solve described problem further thus.
Invention involved by the technical program 7 is that on the basis of the structure of bearing unit in technological scheme 1 to 5 described in any one, described gear module is formed by wear-resisting steel plate, can solve described problem further thus.
The bearing unit of the involved invention of the technical program 1 is made up of cylindrical gears, described cylindrical gears has the tooth be meshed with other gears and the flange forming bearing respectively in inner circumferential or periphery, by by the overlying multiple layers be fixed and form cylindrical gears vertically of multiple gear modules in inner circumferential or periphery with the tooth be meshed with other gears, the axial length of the tooth of each gear module is made to shorten thus, thus adding man-hour and can guarantee the precision of tooth, and production time can be shortened, reduce fabricating cost.
In addition, owing to can exchange respectively by each gear module, even if so when a part for bearing unit there occurs breakage and defect, also only can change, repair the gear module having breakage and defect, so can maintenance cost be reduced.
In addition, because of each gear module diminish, its thickness is also thinning, so the precise decreasing of the tooth caused because of discontinuity of material and processing strain, thermal strain etc. can be suppressed, and noise when operating can be prevented and rotate uneven, raising durability.
The bearing unit of the involved invention of the technical program 2 is except the effect that the bearing unit involved by technological scheme 1 obtains, by multiple gear module is along the circumferential direction divided into multiple in all layers, and the phase shifting of the split position of multiple gear module is carried out overlap and fixing and form cylindrical gears vertically, make without the need to using circle-shaped gear module or fixing circumferential part, so fabricating cost can be reduced further, make the point of division of circumferencial direction disperse simultaneously, and noise when operating can be prevented further and rotate uneven, improve durability.
The bearing unit of the involved invention of the technical program 3 is except the effect that the bearing unit involved by technological scheme 1 or 2 obtains, overlap is carried out vertically and fixing and form cylindrical gears by the phase shifting of the tooth by multiple gear module, can become level and smooth with engaging of other gears in the running thus, and noise when operating can be prevented further and rotate uneven, improve durability.
The bearing unit of the involved invention of the technical program 4 is except the effect that the bearing unit in technological scheme 1 to 3 involved by any one obtains, by the flange forming bearing being formed in periphery or the inner circumferential of at least one deck gear module of the axis in multiple gear module, as long as only guarantee the amount of thickness of the required flange for the formation of bearing thus, also tail off because entirety becomes miniaturization and processes place, production time can be shortened further, reduce fabricating cost.
The bearing unit of the involved invention of the technical program 5 is except the effect that the bearing unit in technological scheme 1 to 4 involved by any one obtains, at least at the ora terminalis with the adjacent side of the tooth of other gear modules, there is concave groove portion by making the tooth of gear module, can in the axial space of intermediate portion setting for keeping lubricant oil of gear, so can become level and smooth further with engaging of other gears in the running, noise when operating can be prevented and rotate uneven, and improving durability.
The bearing unit of the involved invention of the technical program 6 is except the effect that the bearing unit in technological scheme 1 to 5 involved by any one obtains, by adopting general gear material formative gear module and implementing heat treatment, durability, wear resistance can not be made thus to reduce, and production time, reduction fabricating cost can be shortened, meanwhile, noise when operating can be prevented and rotate uneven.
The bearing unit of the involved invention of the technical program 7 is except the effect that the bearing unit in technological scheme 1 to 5 involved by any one obtains, by adopting wear-resisting steel plate formative gear module, processing becomes easy and without the need to heat-treating thus, and production time, reduction fabricating cost can be shortened further, meanwhile, noise when operating can be prevented and rotate uneven.
Accompanying drawing explanation
Fig. 1 is the stereogram of the bearing unit of one embodiment of the present of invention.
Fig. 2 is the sectional view of the bearing unit of one embodiment of the present of invention.
Fig. 3 is partial cross section's explanatory drawing of the bearing unit of one embodiment of the present of invention.
Fig. 4 is the enlarged view of the tooth of the bearing unit of one embodiment of the present of invention.
Fig. 5 is the sectional view of the aligned portions of the tooth of the bearing unit of one embodiment of the present of invention.
Fig. 6 is the stereogram of the bearing unit of other embodiments of the present invention.
Fig. 7 is the sectional view of the bearing unit of the second embodiment of the present invention.
Embodiment
The present invention is a kind of bearing unit, it is made up of the cylindrical gears respectively in inner circumferential or periphery with the tooth be meshed with other gears and the flange forming bearing, described cylindrical gears is by the overlying multiple layers be fixed and formed vertically of multiple gear modules in inner circumferential or periphery with the tooth be meshed with other gears, so adding man-hour and can guarantee the precision of tooth, simultaneously, shorten production time, reduce fabricating cost, and suppress because of discontinuity of material and processing strain, the precise decreasing of the tooth that thermal strain etc. cause, noise when operating can be prevented and rotate uneven, and improve durability, as long as bearing unit as above, its concrete mode of execution can be any mode.
As long as namely can guarantee that each gear module is adding the precision of tooth in man-hour, shorten production time, and reduce fabricating cost, the number of the gear module of bearing unit of the present invention can be any number.
In addition, the fixing of multiple gear module both can be fixed with bolt, nut etc., also can be fixed by any method.
Embodiment 1
Below, based on accompanying drawing, the bearing unit as one embodiment of the present of invention is described.
As shown in Figure 1 to Figure 3, the bearing unit 100 as one embodiment of the present of invention is made up of cylindrical gears 110, and described cylindrical gears 110 has the tooth 111 be meshed with other gears 150 in inner circumferential side, and has the flange 132 forming bearing at outer circumferential side.
Cylindrical gears 110 (facewidth direction) and circumferencial direction and be divided into multiple gear module 120,130,140 vertically, form the top cog module 120 on upper strata, form the intermediate gear module 130 in mesosphere and form the phase shifting that the bottom cog module 140 of lower floor makes its split position circumferentially, thus by inserting bolt (not shown) in the bolt hole 123,133,143 on each gear module 120,130,140 and be integrally fixed being arranged at.
At the outer circumferential side of intermediate gear module 130, be provided with the flange 132 that diameter is greater than other gear modules 120,140, by the thrust-bearing of abutting up and down 101 at this flange 132, at outer circumferential side abutting radial bearing 102, thus form bearing.
In addition, as shown in the Local map of Fig. 4, Fig. 5, the tooth 131 of intermediate gear module 130 and the tooth 141 of bottom cog module 140 respective above the respective below ora terminalis of ora terminalis and the tooth 121 of top cog module 120 and the tooth 131 of intermediate gear module 130, be respectively arranged with concave groove portion 124,134,144.
Then, overlapping and when securing top cog module 120, intermediate gear module 130 and bottom cog module 140, form space by concave groove portion 124,134,144 in the boundary portion of the ora terminalis of each tooth 121,131,141, and keep lubricant oil in this space.
According to above formed bearing unit 100, the tooth 121,131,141 of each gear module 120,130,140 can be processed with general lathe, and can be made into and be subject to discontinuity of material and processing strain, thermal strain etc. affect less thickness.
In addition, each gear module 120,130,140 can adopt the wear-resisting steel plate of HARDOX (TM trade mark) etc., can also omit the heat treatment after machining.
Thus, adding man-hour and can guarantee the precision of tooth 111, and production time can be shortened, reducing fabricating cost, meanwhile, by suppressing the precise decreasing of tooth 111, preventing noise when operating and rotating uneven, and suppress wearing and tearing and breakage etc., thus durability is improved.
In addition, owing to can change respectively by each gear module 120,130,140, even if so when damaged and defect occur a part for bearing unit, also only can change, repair the gear module 120,130 having breakage and defect, 140, so can maintenance cost be reduced.
In addition, the space formed by concave groove portion 124,134,144, can be used as and on the axial intermediate portion of tooth 111 entirety, keep the space of lubricant oil and play function, so the supply of lubricant oil can become very smooth, thus prevent noise when operating further, and suppressing wearing and tearing and breakage etc., durability improves.
And, the phase shifting of the tooth 121,131,141 of each gear module 120,130,140 can also be made, and the gear 150 of engagement flute profile corresponding thereto, the starting point of meshing of tooth 121,131,141 can be made to disperse, can become level and smooth with engaging of other gears 150 during running, prevent noise when operating further and rotate uneven, and suppressing wearing and tearing and breakage etc., durability improves.
Embodiment 2
As shown in Figure 6, Figure 7, the bearing unit 200 as other embodiments of the present invention is made up of cylindrical gears 210, and described cylindrical gears 210 has the tooth 211 be meshed with other gears at outer circumferential side, and has the flange 232 forming bearing in inner circumferential side.
Same with above-described embodiment, cylindrical gears 210 (facewidth direction) and circumferencial direction and be divided into multiple gear module 120 vertically, 130, 140, make top cog module 220, intermediate gear module 230 and bottom cog module 240 are at the phase shifting of the split position of its circumferencial direction, and be arranged at each gear module 220, 230, bolt hole 223 on 240, 233, bolt (not shown) is inserted in 243, be fixed, in the inner circumferential side of intermediate gear module 230, be provided with diameter and be less than other gear modules 220, the flange 232 of 240, and at the thrust-bearing of abutting up and down of this flange 232, radial bearing is abutted in inner circumferential side, thus formation bearing.
As described above, according to the present invention, adding man-hour and can guarantee the precision of tooth, and can production time be shortened, reduce fabricating cost, simultaneously, can suppress because of discontinuity of material and the precise decreasing of processing the tooth that strain, thermal strain etc. cause, and noise when operating can be prevented and rotate uneven, improve durability etc., its effect is very large.
In addition, although in the above-described embodiments, the layer of the axis of gear module is set to three layers, and on the gear module of centre, be provided with the flange forming bearing, but also gear module can be set to two-layer or more than four layers, also can comprise the topmost part layer, foot layer gear module any layer gear module on, arrange and form the flange of bearing.
In addition, as long as can be divided into the size of easily processing, gear module Segmentation Number along the circumferential direction can be any Segmentation Number, both can be identical Segmentation Number also can be different Segmentation Numbers in all layers.In addition, any layer gear module can also be made not split in a circumferential direction, and formed circle-shaped, the circumference circular layer for fixing not having tooth can also be set.
The explanation of reference character:
100,200: bearing unit
101: thrust-bearing
102: radial bearing
110,210: cylindrical gears
120,220: top cog module
121,221: tooth
123,222: bolt hole
130,230: intermediate gear module
131,231: tooth
132,232: flange
133: bolt hole
134: concave groove portion
140,240: bottom cog module
141,241: tooth
143: bolt hole
144: concave groove portion
150: gear
Claims (5)
1. a bearing unit, is made up of the cylindrical gears respectively in inner circumferential or periphery with the tooth be meshed with other gears and the flange forming bearing, it is characterized in that,
Described cylindrical gears is by the overlying multiple layers be fixed and formed vertically of multiple gear modules in inner circumferential or periphery with the tooth be meshed with other gears,
Described cylindrical gears is by the phase shifting of the tooth of described multiple gear module, and carries out overlap, fixing and formed vertically,
Described multiple gear module has the end side gear module, intermediate gear module and the other end side gear module that configure along described axial order,
Flange for the formation of described bearing is formed like this: make the periphery of described intermediate gear module or inner circumferential radially give prominence to from end side gear module and the other end side gear module and be formed.
2. bearing unit according to claim 1, is characterized in that,
Described multiple gear module is along the circumferential direction divided into multiple in all layers,
Described cylindrical gears is by the phase shifting of the split position of multiple gear module, and carries out overlap, fixing and formed vertically.
3. bearing unit according to claim 1 and 2, is characterized in that,
The tooth of described gear module at least has concave groove portion at the ora terminalis with the adjacent side of the tooth of other gear modules.
4. bearing unit according to claim 1 and 2, is characterized in that,
Described gear module is formed by common gear material, and implements heat treatment.
5. bearing unit according to claim 1 and 2, is characterized in that,
Described gear module is formed by wear-resisting steel plate.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-267739 | 2009-11-25 | ||
| JP2009267739A JP5340898B2 (en) | 2009-11-25 | 2009-11-25 | Bearing unit |
| PCT/JP2010/069340 WO2011065186A1 (en) | 2009-11-25 | 2010-10-29 | Bearing unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102597577A CN102597577A (en) | 2012-07-18 |
| CN102597577B true CN102597577B (en) | 2015-02-18 |
Family
ID=44066289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080047905.4A Expired - Fee Related CN102597577B (en) | 2009-11-25 | 2010-10-29 | Bearing unit |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5340898B2 (en) |
| CN (1) | CN102597577B (en) |
| GB (1) | GB2487683A (en) |
| WO (1) | WO2011065186A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122446B (en) * | 2016-08-22 | 2018-09-04 | 中国科学院上海高等研究院 | A kind of ring gear and the unit tooth for constituting the ring gear |
| CN107795663A (en) * | 2016-08-30 | 2018-03-13 | 天津浩岩科技开发有限公司 | A kind of spliced gear of reusable edible |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4669165A (en) * | 1980-09-15 | 1987-06-02 | Kraftwerk Union Aktiengesellschaft | Method of manufacturing and mounting a split spur gear with external teeth |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11141656A (en) * | 1997-11-07 | 1999-05-25 | Mitsui Eng & Shipbuild Co Ltd | Gear |
| JP3612962B2 (en) * | 1997-11-12 | 2005-01-26 | 豊田工機株式会社 | Sliding constant velocity joint |
| JP2004068994A (en) * | 2002-08-08 | 2004-03-04 | Nidec Copal Corp | Geared motor |
| JP2004300870A (en) * | 2003-04-01 | 2004-10-28 | Hitachi Constr Mach Co Ltd | Revolving device of construction machine and construction machine |
| JP2007010107A (en) * | 2005-07-04 | 2007-01-18 | Fuji Xerox Co Ltd | Gear and driving transmission |
| US20090158875A1 (en) * | 2007-12-19 | 2009-06-25 | Wayne Crooks | Stargear assembly |
-
2009
- 2009-11-25 JP JP2009267739A patent/JP5340898B2/en not_active Expired - Fee Related
-
2010
- 2010-10-29 WO PCT/JP2010/069340 patent/WO2011065186A1/en active Application Filing
- 2010-10-29 GB GB1206688.2A patent/GB2487683A/en not_active Withdrawn
- 2010-10-29 CN CN201080047905.4A patent/CN102597577B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4669165A (en) * | 1980-09-15 | 1987-06-02 | Kraftwerk Union Aktiengesellschaft | Method of manufacturing and mounting a split spur gear with external teeth |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102597577A (en) | 2012-07-18 |
| WO2011065186A1 (en) | 2011-06-03 |
| GB2487683A (en) | 2012-08-01 |
| JP5340898B2 (en) | 2013-11-13 |
| GB201206688D0 (en) | 2012-05-30 |
| JP2011112120A (en) | 2011-06-09 |
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Granted publication date: 20150218 Termination date: 20151029 |
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