WO2011065186A1 - Bearing unit - Google Patents
Bearing unit Download PDFInfo
- Publication number
- WO2011065186A1 WO2011065186A1 PCT/JP2010/069340 JP2010069340W WO2011065186A1 WO 2011065186 A1 WO2011065186 A1 WO 2011065186A1 JP 2010069340 W JP2010069340 W JP 2010069340W WO 2011065186 A1 WO2011065186 A1 WO 2011065186A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gear
- bearing unit
- teeth
- bearing
- modules
- Prior art date
Links
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 22
- 238000003754 machining Methods 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 230000002950 deficient Effects 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 4
- 230000004323 axial length Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
Images
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
Definitions
- the present invention relates to a bearing unit comprising a cylindrical gear having teeth that mesh with other gears on the inner periphery or outer periphery and a flange that forms a bearing, and particularly to a turning unit of a large machine such as a construction machine or crane. It relates to a suitable bearing unit.
- a bearing unit including a cylindrical gear having a tooth that engages with another gear and a flange that forms a bearing on an inner periphery or an outer periphery is well known.
- a known bearing unit is manufactured from a single material by machining with a machine tool such as a gear cutter (see Patent Document 1).
- the known bearing unit has a large size and a long axial length of the tooth, so that it is difficult to ensure the accuracy of the tooth at the time of processing, and the manufacturing time becomes long and the manufacturing cost becomes very high. there were.
- the accuracy of the teeth is low due to the effects of material non-uniformity, distortion due to processing, or distortion in post-treatment such as heat treatment. There was a possibility that there was a problem in durability.
- the present invention solves the problems of the prior art as described above, that is, the object of the present invention is to ensure the accuracy of teeth during processing, shorten the production time, reduce the production cost, It is intended to provide a bearing unit that suppresses a reduction in tooth accuracy due to non-uniformity, processing distortion, thermal distortion, and the like, prevents noise and rotation unevenness during operation, and has improved durability.
- the invention according to claim 1 is a bearing unit including a cylindrical gear having a tooth that engages with another gear and a flange that forms a bearing on the inner periphery or the outer periphery, respectively.
- the plurality of gear modules are divided into a plurality of circumferential directions in all layers, and the cylindrical gear is
- the above-described problems are further solved by forming the plurality of gear modules by shifting the phases of the division positions and overlapping and fixing them in the axial direction.
- the cylindrical gear is fixed by being overlapped in the axial direction by shifting phases of teeth of a plurality of gear modules.
- the flange forming the bearing is at least an axial direction of the plurality of gear modules.
- the above-mentioned problem is further solved by being formed on the outer periphery or inner periphery of the one-layer gear module.
- the teeth of the gear module are at least adjacent to the teeth of another gear module.
- the gear module is formed of a general gear material and subjected to heat treatment. Therefore, the above-described problem is further solved.
- the gear module in addition to the structure of the bearing unit according to any one of claims 1 to 5, is formed of a wear-resistant steel plate. The problem is further solved.
- the bearing unit according to the first aspect of the present invention is a bearing unit comprising a cylindrical gear having a tooth that engages with another gear and a flange that forms a bearing on the inner periphery or the outer periphery, and the cylindrical gear is disposed on the inner periphery or the outer periphery.
- the bearing unit according to the second aspect includes a plurality of gear modules divided into a plurality of circumferential layers in all layers, and a plurality of cylindrical gears. Since the gear module module is formed by shifting the phase of the division position and fixing it in the axial direction, there is no need to use a circumferential gear module or a fixing circumferential member. Can be reduced, and the dividing points in the circumferential direction are dispersed. Further, noise during driving and uneven rotation can be prevented, and durability can be improved. *
- the cylindrical gear is configured such that the cylindrical gears are stacked in the axial direction while shifting the phases of the teeth of the plurality of gear modules.
- the bearing unit according to a fourth aspect of the present invention is the bearing unit according to any one of the first to third aspects, in addition to the effect of the bearing unit according to any one of the first to third aspects.
- the bearing unit of the invention according to claim 5 is a side where the teeth of the gear module are adjacent to at least the teeth of another gear module.
- the bearing unit according to the sixth aspect of the present invention is the one in which the gear module is formed of a general gear material and subjected to heat treatment, in addition to the effect exhibited by the bearing unit according to any one of the first to fifth aspects.
- the manufacturing time can be shortened, the manufacturing cost can be reduced, and the noise and uneven rotation during operation can be prevented without lowering the durability and wear resistance.
- the gear module is formed of a wear-resistant steel plate. It is easy to process and does not require heat treatment. Further, the manufacturing time can be shortened, the manufacturing cost can be reduced, and noise and uneven rotation during operation can be prevented.
- the present invention provides a bearing unit comprising a cylindrical gear having a tooth that engages with another gear and a flange that forms a bearing on the inner periphery or outer periphery, and the cylindrical gear has teeth that engage with another gear on the inner periphery or outer periphery.
- a plurality of gear modules are axially stacked and fixed to a plurality of layers to ensure the accuracy of teeth during processing, reduce the manufacturing time, reduce the manufacturing cost, and reduce the use of materials. Any specific embodiment may be used as long as the reduction in tooth accuracy due to uniformity, processing strain, thermal strain, etc. is suppressed, noise during operation and uneven rotation are prevented, and durability is improved. It doesn't matter if it exists. *
- the number of gear modules in the bearing unit of the present invention is any number as long as each gear module can ensure the accuracy of teeth during processing, shorten the manufacturing time, and reduce the manufacturing cost. Also good.
- the plurality of gear modules may be fixed with bolts, nuts, or the like, or may be fixed by any method.
- the bearing unit 100 which is one Example of this invention is demonstrated based on drawing.
- the bearing unit 100 according to an embodiment of the present invention has teeth 111 that mesh with another gear 150 on the inner peripheral side, and a flange 132 that forms a bearing on the outer peripheral side. It consists of a cylindrical gear 110.
- the cylindrical gear 110 is divided into a plurality of gear modules 120, 130, and 140 in the axial direction (tooth width direction) and the circumferential direction, and an upper gear module 120 that forms an upper layer, and a center that forms a central layer.
- the gear module 130 and the lower gear module 140 forming the lower layer are shifted in phase in the circumferential division position, and bolts 123, 133, 143 provided in the respective gear modules 120, 130, 140 are bolts ( (Not shown) is inserted and fixed integrally. *
- a flange 132 having a larger diameter than the other gear modules 120 and 140 is provided on the outer peripheral side of the central gear module 130, and the thrust bearing 101 contacts the upper and lower sides of the flange 132 and the radial bearing 102 contacts the outer peripheral side. This forms a bearing.
- the teeth 121, 131, and 141 of the gear modules 120, 130, and 140 can be machined by a general-purpose machine tool. It is possible to make the thickness less affected by distortion or the like. Moreover, it becomes possible to make each gear module 120,130,140 into wear-resistant steel plates, such as HARDOX (trademark), and it becomes possible to abbreviate
- HARDOX wear-resistant steel plates
- each gear module 120, 130, 140 can be replaced, even if a part of the bearing unit is damaged or defective, only the damaged or defective gear module 120, 130, 140 is replaced. Since it can be repaired, the maintenance cost can be reduced.
- the space formed by the concave grooves 124, 134, and 144 functions as a space that holds the lubricating oil in the axially intermediate portion of the entire tooth 111, so that the lubricating oil can be supplied smoothly, and further operation can be performed. Noise at the time is prevented, wear and damage are suppressed, and durability is improved.
- the phases of the teeth 121, 131, 141 of the gear modules 120, 130, 140 may be shifted, and the meshing start point of the teeth 121, 131, 141 can be determined by engaging the gears 150 of the corresponding tooth type. It is possible to disperse, and the meshing with the other gear 150 during operation becomes smooth, noise during operation and rotation unevenness are prevented, wear and damage are suppressed, and durability is improved.
- the bearing unit 200 has teeth 211 that mesh with other gears on the outer peripheral side, and a flange 232 that forms a bearing on the inner peripheral side. It consists of a cylindrical gear 210. *
- the cylindrical gear 210 is divided into a plurality of gear modules 120, 130, 140 in the axial direction (tooth width direction) and the circumferential direction, and the upper gear module 220, the central gear module 230, and The lower gear module 240 is fixed by inserting bolts (not shown) through bolt holes 223, 233, and 243 provided in the gear modules 220, 230, and 240 while shifting the phase of the circumferential division positions.
- the inner peripheral side of the central gear module 230 is provided with a flange 232 having a smaller diameter than the other gear modules 220 and 240, and a thrust bearing is in contact with the upper and lower sides of the flange 232, and a radial bearing is in contact with the inner peripheral side. This forms a bearing.
- the accuracy of teeth can be ensured during processing, the manufacturing time can be shortened, the manufacturing cost can be reduced, and material non-uniformity, processing distortion, heat
- the reduction in teeth accuracy due to distortion or the like is suppressed, noise and rotation unevenness during operation can be prevented, and durability can be improved.
- the gear module has three layers in the axial direction, and the center gear module is provided with a flange for forming a bearing.
- the gear module may have two layers or four or more layers to form a bearing.
- the flange to be formed may be provided in the gear module of any layer including the gear module of the uppermost layer and the lowermost layer.
- the number of divisions in the circumferential direction of the gear module may be divided into any number as long as it can be divided into sizes that allow easy processing, and may be the same number of divisions or different division numbers in all layers.
- the gear module of any layer may be formed in a circumferential shape without being divided in the circumferential direction, and a fixing circumferential ring layer having no teeth may be provided.
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
Description
周知のベアリングユニットは、一つの素材から歯切り盤等の工作機械によって加工されて製作される(特許文献1参照。)。 2. Description of the Related Art Conventionally, a bearing unit including a cylindrical gear having a tooth that engages with another gear and a flange that forms a bearing on an inner periphery or an outer periphery is well known.
A known bearing unit is manufactured from a single material by machining with a machine tool such as a gear cutter (see Patent Document 1).
また、材料の不均一性、加工による歪、あるいは、熱処理等の後処理における歪の影響によっても歯の精度が低いため、運転時の騒音や回転むらの原因となるとともに、摩耗や破損等の虞があり耐久性に問題があった。 The known bearing unit has a large size and a long axial length of the tooth, so that it is difficult to ensure the accuracy of the tooth at the time of processing, and the manufacturing time becomes long and the manufacturing cost becomes very high. there were.
In addition, the accuracy of the teeth is low due to the effects of material non-uniformity, distortion due to processing, or distortion in post-treatment such as heat treatment. There was a possibility that there was a problem in durability.
また、複数の歯車モジュールの固定は、ボルトやナット等で固定されても良く、いかなる方法で固定されても良い。 In other words, the number of gear modules in the bearing unit of the present invention is any number as long as each gear module can ensure the accuracy of teeth during processing, shorten the manufacturing time, and reduce the manufacturing cost. Also good.
The plurality of gear modules may be fixed with bolts, nuts, or the like, or may be fixed by any method.
本発明の一実施例であるベアリングユニット100は、図1乃至図3に示すように、内周側に他の歯車150と噛み合う歯111を有し、外周側にベアリングを形成するフランジ132を有する円筒歯車110からなる。 Below, the bearing unit which is one Example of this invention is demonstrated based on drawing.
As shown in FIGS. 1 to 3, the
また、各歯車モジュール120、130、140をHARDOX(登録商標)等の耐摩耗性鋼板とすることが可能となり、機械加工後の熱処理を省略することも可能となる。 According to the
Moreover, it becomes possible to make each gear module 120,130,140 into wear-resistant steel plates, such as HARDOX (trademark), and it becomes possible to abbreviate | omit the heat processing after machining.
101 ・・・スラストベアリング
102 ・・・ラジアルベアリング
110、210 ・・・円筒歯車
120、220 ・・・上方歯車モジュール
121、221 ・・・歯
123、222 ・・・ボルト孔
130、230 ・・・中央歯車モジュール
131、231 ・・・歯
132、232 ・・・フランジ
133 ・・・ボルト孔
134 ・・・凹状溝部
140、240 ・・・下方歯車モジュール
141、241 ・・・歯
143 ・・・ボルト孔
144 ・・・凹状溝部
150 ・・・歯車 DESCRIPTION OF
Claims (7)
- 内周あるいは外周に、それぞれ他の歯車と噛み合う歯およびベアリングを形成するフランジを有する円筒歯車からなるベアリングユニットにおいて、
前記円筒歯車が、内周あるいは外周に他の歯車と噛み合う歯を有する複数の歯車モジュールを軸方向に複数の層に重ねて固定されて形成されていることを特徴とするベアリングユニット。 In a bearing unit consisting of a cylindrical gear having a flange that forms a bearing and a tooth that meshes with another gear on the inner periphery or the outer periphery,
A bearing unit, wherein the cylindrical gear is formed by fixing a plurality of gear modules having teeth meshing with other gears on an inner periphery or an outer periphery so as to overlap each other in a plurality of layers in an axial direction. - 前記複数の歯車モジュールが、すべての層で周方向に複数に分割されてなり、
前記円筒歯車が、複数の歯車モジュールの分割位置の位相をずらして軸方向に重ねて固定されて形成されていることを特徴とする請求項1に記載のベアリングユニット。 The plurality of gear modules are divided into a plurality of circumferential directions in all layers,
2. The bearing unit according to claim 1, wherein the cylindrical gear is formed so as to be overlapped and fixed in an axial direction while shifting a phase of a division position of the plurality of gear modules. - 前記円筒歯車が、複数の歯車モジュールの歯の位相をずらして軸方向に重ねて固定されて形成されていることを特徴とする請求項1または請求項2に記載のベアリングユニット。 The bearing unit according to claim 1 or 2, wherein the cylindrical gear is formed by shifting a phase of teeth of a plurality of gear modules and being fixed in an axial direction.
- 前記ベアリングを形成するフランジが、前記複数の歯車モジュールのうちの少なくとも軸方向の一つの層の歯車モジュールの外周あるいは内周に形成されていることを特徴とする請求項1乃至請求項3のいずれかに記載のベアリングユニット。 4. The flange according to claim 1, wherein a flange forming the bearing is formed on an outer periphery or an inner periphery of at least one axial gear module of the plurality of gear modules. Crab bearing unit.
- 前記歯車モジュールの歯が、少なくとも他の歯車モジュールの歯と隣接する側の端縁に凹状溝部を有していることを特徴とする請求項1乃至請求項4のいずれかに記載のベアリングユニット。 The bearing unit according to any one of claims 1 to 4, wherein the teeth of the gear module have a concave groove on at least an edge adjacent to a tooth of another gear module.
- 前記歯車モジュールが、一般的な歯車材料で形成され熱処理が施されたものであることを特徴とする請求項1乃至請求項5のいずれかに記載のベアリングユニット。 The bearing unit according to any one of claims 1 to 5, wherein the gear module is formed of a general gear material and subjected to heat treatment.
- 前記歯車モジュールが、耐摩耗性鋼板で形成されたものであることを特徴とする請求項1乃至請求項5のいずれかに記載のベアリングユニット。 The bearing unit according to any one of claims 1 to 5, wherein the gear module is formed of a wear-resistant steel plate.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201080047905.4A CN102597577B (en) | 2009-11-25 | 2010-10-29 | Bearing unit |
GB1206688.2A GB2487683A (en) | 2009-11-25 | 2010-10-29 | Bearing unit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009-267739 | 2009-11-25 | ||
JP2009267739A JP5340898B2 (en) | 2009-11-25 | 2009-11-25 | Bearing unit |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011065186A1 true WO2011065186A1 (en) | 2011-06-03 |
Family
ID=44066289
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/069340 WO2011065186A1 (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) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
Families Citing this family (1)
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 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5783756A (en) * | 1980-09-15 | 1982-05-25 | Kraftwerk Union Ag | Gear with outer spur gear and its manufacture |
JPH11141656A (en) * | 1997-11-07 | 1999-05-25 | Mitsui Eng & Shipbuild Co Ltd | Gear |
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 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3612962B2 (en) * | 1997-11-12 | 2005-01-26 | 豊田工機株式会社 | Sliding constant velocity joint |
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 (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5783756A (en) * | 1980-09-15 | 1982-05-25 | Kraftwerk Union Ag | Gear with outer spur gear and its manufacture |
JPH11141656A (en) * | 1997-11-07 | 1999-05-25 | Mitsui Eng & Shipbuild Co Ltd | Gear |
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 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
Also Published As
Publication number | Publication date |
---|---|
CN102597577A (en) | 2012-07-18 |
GB2487683A (en) | 2012-08-01 |
JP5340898B2 (en) | 2013-11-13 |
GB201206688D0 (en) | 2012-05-30 |
JP2011112120A (en) | 2011-06-09 |
CN102597577B (en) | 2015-02-18 |
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