CN110873122A - Speed changer bearing - Google Patents
Speed changer bearing Download PDFInfo
- Publication number
- CN110873122A CN110873122A CN201911175469.8A CN201911175469A CN110873122A CN 110873122 A CN110873122 A CN 110873122A CN 201911175469 A CN201911175469 A CN 201911175469A CN 110873122 A CN110873122 A CN 110873122A
- Authority
- CN
- China
- Prior art keywords
- bearing
- ring
- oil seal
- wall
- outer ring
- 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
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/768—Sealings of ball or roller bearings between relatively stationary parts, i.e. static seals
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7803—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings
- F16C33/7806—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings for spherical roller 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/784—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
- F16C33/7843—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc
- F16C33/7853—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc with one or more sealing lips to contact the inner race
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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
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a speed changer bearing, which relates to the technical field of speed changer accessories and comprises a bearing outer ring, a bearing inner ring and a roller clamped between the bearing outer ring and the bearing inner ring, wherein a skeleton oil seal with an outward end surface is arranged at one end, close to the outer part, of the bearing outer ring and the bearing inner ring; the inner wall of the bearing outer ring is provided with a first shoulder abutted against the framework oil seal, and the end face of the framework oil seal is arranged on the inner side of the outer end face of the bearing outer ring; and a sealing ring is arranged between the outer wall of the bearing outer ring and the transmission shell. The invention solves the problems of high precision requirement of the part of the existing transmission matched with an oil seal, high oil seal assembly difficulty and easy scratching.
Description
Technical Field
The invention relates to the technical field of transmission accessories, in particular to a transmission bearing.
Background
The automobile transmission is one of the main parts in an automobile transmission system, an input shaft of the automobile transmission is connected with an engine through a clutch, power is obtained from the engine, the transmission ratio of an output shaft and the input shaft of the automobile transmission is changed through a gear engaging mechanism and a gear transmission system, and a differential mechanism is driven to move by the output shaft. In order to reduce the abrasion of the contact surface of a moving part in the transmission and take away impurities and heat on a friction surface, thereby ensuring the normal work of the transmission and prolonging the service life of the transmission, lubricating oil is put in a transmission shell, and an oil seal is sleeved on an input shaft or an output shaft, so that the outward leakage of the lubricating oil from a gap between a rotating shaft and the transmission shell can be avoided, and external dust can be prevented from entering the transmission shell. The oil seal of the existing input shaft or output shaft is fixed in an oil seal seat hole on the inner wall of a transmission shell, and the structure requires that the matching surface of the shell and a bearing has good roughness requirement, the processing cost is high, and the control difficulty is high. In addition, in the assembling process, the oil seal is installed preferentially, and then the shafting is inserted into the shell and the oil seal, so that the oil seal is easily scratched, the assembling difficulty is high, and oil leakage risk often exists after the assembly.
Disclosure of Invention
The invention aims to provide a transmission bearing which can solve the problems that the precision requirement of the part of the existing transmission matched with an oil seal is high, the oil seal is difficult to assemble and is easy to scratch.
In order to solve the problems, the invention adopts the technical scheme that: the speed changer bearing comprises a bearing outer ring, a bearing inner ring and a roller clamped between the bearing outer ring and the bearing inner ring, wherein a skeleton oil seal with an outward end surface is arranged at one end, close to the outer side, of the bearing outer ring and the bearing inner ring, the skeleton oil seal is arranged between the bearing outer ring and the bearing inner ring, a seal lip is pressed on the outer wall of the bearing inner ring through a self-tightening spring, and the outer diameter surface of the skeleton oil seal is in interference fit with the inner wall of the bearing outer ring; the inner wall of the bearing outer ring is provided with a first shoulder abutted against the framework oil seal, and the end face of the framework oil seal is arranged on the inner side of the outer end face of the bearing outer ring; and a sealing ring is arranged between the outer wall of the bearing outer ring and the transmission shell.
In the above-mentioned technical solution of the transmission bearing, a more specific technical solution may be: the bearing inner ring is provided with an installation section extending towards the inner cavity of the transmission shell along the axial direction, an oil guide impeller is sleeved on the installation section, one end of the oil guide impeller is provided with a positioning section which is abutted against a third shoulder on the outer wall of the bearing inner ring, and a gap is reserved between the oil guide impeller and the inner end face of the bearing outer ring.
Further, the framework oil seal is a double-lip framework oil seal.
Furthermore, one end of the bearing inner ring is abutted against the second shoulder of the rotating shaft, and the other end of the bearing inner ring is abutted against a bearing retainer ring clamped on the rotating shaft.
Furthermore, a groove for placing the sealing ring is formed in the outer wall of the bearing outer ring.
Furthermore, a boss protruding outwards in the radial direction is arranged on the outer wall of the inner ring of the oil seal, one side face of the boss is the third shoulder, and a roller path of the roller is arranged on the boss.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. an oil seal is arranged at one end of the bearing close to the outside, the oil seal is in interference fit with the outer ring, and a lip of the oil seal is in contact with the inner ring of the bearing, so that lubricating oil on the right side of the bearing is prevented from leaking to the outside of the transmission; because the oil seal is arranged in the bearing, the risk that the transmission assembly line scratches the oil seal can be completely avoided; the assembly is simple, and the bearing interface is directly pressed in; in addition, the transmission oil seal parts are eliminated, and the input shaft and the shell do not need to be provided with high-precision holes matched with the oil seal.
2. The inner end of the bearing inner ring is provided with the oil guide impeller, so that the lubricating oil immersed in the oil guide wheel and the lubricating oil splashed to the oil guide wheel can be collected to the bearing, and the function of lubricating the raceway is achieved; in particular, the front bearing positioned in the middle concave part of the transmission assembly can be lubricated better.
3. The double-lip framework oil seal is adopted, so that dust can be prevented from entering the bearing, and the sealing performance between the oil seal and the bearing can be kept for a long time.
4. The bearing has a simple integral structure, avoids a complex oil duct system of the bearing and effectively lubricates the bearing; the control difficulty is low, the bearing assembly difficulty is low, and the precision is high and low.
Drawings
Fig. 1 is an exploded view of the present transmission bearing.
Fig. 2 is a schematic view of the assembly structure of the transmission bearing.
FIG. 3 is a schematic structural view of the transmission bearing sleeve mounted on the rotating shaft.
The numbering in the drawings illustrates: 1. framework oil seal; 1-1, end face; 1-2, sealing lip; 1-3, dust lip prevention; 2. a self-tightening spring; 3. a bearing inner race; 3-1, a boss; 3-11, a second shoulder; 3-2, an inner roller way; 3-3, mounting section; 4. a roller; 5. a bearing outer race; 5-1, a groove; 5-2, an outer raceway; 5-3, a first shoulder; 6. a seal ring; 7. an oil guide impeller; 7-1, a positioning section; 8. a rotating shaft; 8-1, a third shoulder; 9. a transmission housing; 10. and a bearing retainer ring.
Detailed Description
The invention will be further described in detail with reference to the following examples:
the transmission bearing shown in fig. 1 to 3 is mounted on a rotating shaft 8 penetrating through a transmission housing 9, the rotating shaft 8 can be a transmission input shaft or a transmission output shaft, the transmission bearing mainly comprises an oil seal 1, a bearing inner ring 3, a roller 4, a bearing outer ring 5, a seal ring 6 and an oil guide impeller 7, the roller 4 is clamped between the bearing outer ring 5 and the bearing inner ring 3, an outer raceway 5-2 matched with the roller 4 is arranged on the inner wall of the bearing outer ring 5, a boss 3-1 protruding outwards in the radial direction is arranged on the outer wall of the bearing inner ring 3, an inner raceway 3-2 matched with the roller 4 is arranged on the boss 3-1 corresponding to the outer raceway 5-2 of the bearing outer ring 5, and the roller 4 rolls between the inner raceway 3-2 and the outer raceway 5-2; a sealing ring 6 is arranged between the bearing outer ring 5 and the transmission shell 9, and a groove 5-1 for placing the sealing ring 6 is arranged on the outer wall of the bearing outer ring 5; a second shoulder 3-11 which is abutted against the inner end of the bearing inner ring 3 is arranged on the rotating shaft 8, and a bearing retainer ring 10 which is abutted against the outer end of the bearing inner ring 3 is clamped on the rotating shaft 8. As shown in fig. 2, a framework oil seal 1 is arranged at one end of the outer side of the bearing outer ring 5 and the bearing inner ring 3, the framework oil seal 1 is arranged between the bearing outer ring 5 and the bearing inner ring 3, the end surface 1-1 of the framework oil seal 1 faces outwards and is arranged at the inner side of the outer end surface of the bearing outer ring 5, and the other end of the framework oil seal 1 is abutted to a first shoulder 5-3 of the inner wall of the bearing outer ring 5; the framework oil seal 1 presses the sealing lips 1-2 against the outer wall of the bearing inner ring 3 through the self-tightening spring 2, the framework oil seal 1 of the embodiment adopts a double-lip framework oil seal, and the dustproof lips 1-3 of the double-lip framework oil seal are positioned on the outer sides of the sealing lips 1-2 and abut against the outer wall of the bearing inner ring 3; the outer diameter surface of the framework oil seal 1 is in interference fit with the inner wall of the bearing outer ring 5, so that sealing between the oil seal and the bearing is realized, and the leakage of lubricating oil in the transmission shell 9 is avoided. When the bearing is the front bearing of the transmission, the oil guide impeller 7 is arranged at one end of the bearing, which is positioned in the inner cavity of the transmission shell 9, so that the bearing can be better lubricated. The bearing inner ring 3 is provided with an installation section 3-3 extending towards the inner cavity of the transmission shell 9 along the axial direction, the oil guide impeller 7 is sleeved on the installation section 3-3, one end of the oil guide impeller 7 is provided with a positioning section 7-1 extending towards a boss 3-1 of the bearing inner ring 3, and the positioning section 7-1 is abutted against a third shoulder 3-11 formed on one side surface of the boss 3-1; in order to avoid interference, a gap with a certain distance is reserved between the oil guide impeller 7 and the inner end face of the bearing outer ring 5.
The transmission bearing integrates the framework oil seal 1 in the bearing, the integrated bearing is supported on the transmission shell 9, and the oil seal cannot be scratched. The outer ring of the framework oil seal 1 is in interference fit with the bearing outer ring 5 and cannot rotate relatively, the inner ring of the framework oil seal 1 tightly holds the bearing inner ring 3 through the self-tightening spring 3, and lubricating oil in the transmission shell 9 is prevented from leaking to the outside of the transmission from the position between the bearing outer ring 5 and the bearing inner ring 3. The bearing outer ring 5 is fitted with an O-ring seal 8, and even when the bearing outer ring 5 is in clearance fit, the lubricating oil can be prevented from leaking out of the transmission from the clearance between the bearing outer ring 5 and the transmission case 9. The surfaces of the rotating shaft 8 and the transmission shell 9, which are in contact with the framework oil seal 1, are ground and formed at one time in the bearing processing, then the assembly is completed by a bearing manufacturer, and the input shaft and the shell do not need to be processed with high-precision holes matched with the oil seal, so that the cost is low.
Claims (6)
1. A kind of speed change gear bearing, including bearing outer race, bearing inner race and centre gripping in the bearing outer race with the roller between the bearing inner race, characterized by that: a framework oil seal with an outward end surface is arranged at one end, close to the outer side, of the bearing outer ring and the bearing inner ring, the framework oil seal is arranged between the bearing outer ring and the bearing inner ring, the framework oil seal presses a sealing lip against the outer wall of the bearing inner ring through a self-tightening spring, and the outer diameter surface of the framework oil seal is in interference fit with the inner wall of the bearing outer ring; the inner wall of the bearing outer ring is provided with a first shoulder abutted against the framework oil seal, and the end face of the framework oil seal is arranged on the inner side of the outer end face of the bearing outer ring; and a sealing ring is arranged between the outer wall of the bearing outer ring and the transmission shell.
2. The variator bearing of claim 1, wherein: the bearing inner ring is provided with an installation section extending towards the inner cavity of the transmission shell along the axial direction, an oil guide impeller is sleeved on the installation section, one end of the oil guide impeller is provided with a positioning section which is abutted against a third shoulder on the outer wall of the bearing inner ring, and a gap is reserved between the oil guide impeller and the inner end face of the bearing outer ring.
3. The variator bearing of claim 1 or 2, wherein: the framework oil seal is a double-lip framework oil seal.
4. The variator bearing of claim 3, wherein: one end of the bearing inner ring is abutted against the second shoulder of the rotating shaft, and the other end of the bearing inner ring is abutted against a bearing retainer ring clamped on the rotating shaft.
5. The variator bearing of claim 4, wherein: and a groove for placing the sealing ring is formed in the outer wall of the bearing outer ring.
6. The variator bearing of claim 5, wherein: and a boss which protrudes outwards in the radial direction is arranged on the outer wall of the inner ring of the oil seal, one side surface of the boss is the third shoulder, and the boss is provided with a roller path of the roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911175469.8A CN110873122B (en) | 2019-11-26 | 2019-11-26 | Speed changer bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911175469.8A CN110873122B (en) | 2019-11-26 | 2019-11-26 | Speed changer bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110873122A true CN110873122A (en) | 2020-03-10 |
| CN110873122B CN110873122B (en) | 2021-04-30 |
Family
ID=69717267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911175469.8A Active CN110873122B (en) | 2019-11-26 | 2019-11-26 | Speed changer bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110873122B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113883257A (en) * | 2020-07-02 | 2022-01-04 | 浙江万里扬股份有限公司 | Lubrication structure and transmission assembly |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2108596A (en) * | 1981-10-30 | 1983-05-18 | Gen Motors Corp | Self-venting seal assemblies |
| JP2003262233A (en) * | 2002-03-08 | 2003-09-19 | Yamada Seisakusho Co Ltd | Sealing device of water pump bearing |
| JP2005299610A (en) * | 2004-04-16 | 2005-10-27 | Koyo Seiko Co Ltd | Water pump |
| JP2008051249A (en) * | 2006-08-25 | 2008-03-06 | Nsk Ltd | Rolling bearing |
| CN101592193A (en) * | 2009-05-09 | 2009-12-02 | 广西福达汽车有限公司 | The method of EQ140/145 jack shaft rear bearing locking |
| CN201991931U (en) * | 2011-03-26 | 2011-09-28 | 芜湖人本轴承有限公司 | Semi-shaft ball bearing |
| CN202746412U (en) * | 2012-07-31 | 2013-02-20 | 浙江新昌皮尔轴承有限公司 | Bearing used by precision machine tool and provided with improved oil seal |
| CN203670452U (en) * | 2013-12-05 | 2014-06-25 | 广州汽车集团股份有限公司 | Bearing of transmission |
| CN204253627U (en) * | 2014-11-10 | 2015-04-08 | 宁波百沃精工轴承有限公司 | Waterproof type high-speed precision bearing |
| JP2015096751A (en) * | 2013-11-15 | 2015-05-21 | Ntn株式会社 | Pulley unit |
| CN105605104A (en) * | 2015-12-15 | 2016-05-25 | 谷家菊 | Support bearing for shafting hanger of automobile |
| CN208870932U (en) * | 2018-10-08 | 2019-05-17 | 大连兴轮轴承有限公司 | The rolling bearing of wear resistant and rustproof |
| CN209212778U (en) * | 2018-11-09 | 2019-08-06 | 瓦房店鑫阳光轴承制造有限公司 | A kind of ultra-light high-speed operating bearing |
| CN209398730U (en) * | 2018-12-13 | 2019-09-17 | 瓦房店中北轴承制造有限公司 | A kind of bearing with dust reduction capability |
-
2019
- 2019-11-26 CN CN201911175469.8A patent/CN110873122B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2108596A (en) * | 1981-10-30 | 1983-05-18 | Gen Motors Corp | Self-venting seal assemblies |
| JP2003262233A (en) * | 2002-03-08 | 2003-09-19 | Yamada Seisakusho Co Ltd | Sealing device of water pump bearing |
| JP2005299610A (en) * | 2004-04-16 | 2005-10-27 | Koyo Seiko Co Ltd | Water pump |
| JP2008051249A (en) * | 2006-08-25 | 2008-03-06 | Nsk Ltd | Rolling bearing |
| CN101592193A (en) * | 2009-05-09 | 2009-12-02 | 广西福达汽车有限公司 | The method of EQ140/145 jack shaft rear bearing locking |
| CN201991931U (en) * | 2011-03-26 | 2011-09-28 | 芜湖人本轴承有限公司 | Semi-shaft ball bearing |
| CN202746412U (en) * | 2012-07-31 | 2013-02-20 | 浙江新昌皮尔轴承有限公司 | Bearing used by precision machine tool and provided with improved oil seal |
| JP2015096751A (en) * | 2013-11-15 | 2015-05-21 | Ntn株式会社 | Pulley unit |
| CN203670452U (en) * | 2013-12-05 | 2014-06-25 | 广州汽车集团股份有限公司 | Bearing of transmission |
| CN204253627U (en) * | 2014-11-10 | 2015-04-08 | 宁波百沃精工轴承有限公司 | Waterproof type high-speed precision bearing |
| CN105605104A (en) * | 2015-12-15 | 2016-05-25 | 谷家菊 | Support bearing for shafting hanger of automobile |
| CN208870932U (en) * | 2018-10-08 | 2019-05-17 | 大连兴轮轴承有限公司 | The rolling bearing of wear resistant and rustproof |
| CN209212778U (en) * | 2018-11-09 | 2019-08-06 | 瓦房店鑫阳光轴承制造有限公司 | A kind of ultra-light high-speed operating bearing |
| CN209398730U (en) * | 2018-12-13 | 2019-09-17 | 瓦房店中北轴承制造有限公司 | A kind of bearing with dust reduction capability |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113883257A (en) * | 2020-07-02 | 2022-01-04 | 浙江万里扬股份有限公司 | Lubrication structure and transmission assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110873122B (en) | 2021-04-30 |
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