CN110725857A - Highly integrated double-axis bearing unit - Google Patents
Highly integrated double-axis bearing unit Download PDFInfo
- Publication number
- CN110725857A CN110725857A CN201911043726.2A CN201911043726A CN110725857A CN 110725857 A CN110725857 A CN 110725857A CN 201911043726 A CN201911043726 A CN 201911043726A CN 110725857 A CN110725857 A CN 110725857A
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- inner ring
- ring
- bearing
- axis
- double
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- 229910000831 Steel Inorganic materials 0.000 claims description 35
- 239000010959 steel Substances 0.000 claims description 35
- 230000009977 dual effect Effects 0.000 claims description 9
- 230000001154 acute effect Effects 0.000 claims description 6
- 230000002457 bidirectional effect Effects 0.000 claims description 4
- 230000010354 integration Effects 0.000 claims description 2
- 230000013011 mating Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/54—Systems consisting of a plurality of bearings with rolling friction
- F16C19/546—Systems with spaced apart rolling bearings including at least one angular contact bearing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention belongs to the technical field of bearing equipment manufacturing, and particularly relates to a highly-integrated double-axis bearing unit. This patent technique is through on integrated bearing arrangement with circumference bevel gear structural design for the restriction meshes ring gear circular motion, plays the effect of splining, has realized that the plunger moves periodically from top to bottom and meshes the motionless working method of ring gear circumferencial direction, has retrencied bearing arrangement and has guaranteed whole bearing unit's function operation simultaneously.
Description
Technical Field
The invention belongs to the technical field of bearing equipment manufacturing, and particularly relates to a highly-integrated double-axis bearing unit.
Background
The aviation hydraulic pump or other similar hydraulic pump systems have periodic combined circumferential and axial motion, so that a compact and lightweight design of a bearing for supporting a hydraulic pump rotor is required. At present, the aviation hydraulic pump bearing and other related accessories are respectively independent and assembled together for use, and the structure is bulky and complex. The part has larger axial load and higher movement rotating speed, and the part supporting bearing is required to have the characteristics of compact structure, stable operation, strong bearing capacity, high reliability and the like, and simultaneously meets the periodic axial and circumferential compound movement of the main machine.
Disclosure of Invention
In view of the above-mentioned prior art, it is an object of the present invention to provide a highly integrated double-axis bearing unit in which the support bearing and other related accessories are highly integrated and unitized.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the high-integration double-axis bearing unit is characterized in that meshing teeth are arranged on the end face of the double-axis bearing along the circumferential direction, a pairing gear ring matched with the meshing teeth is arranged on one side of the double-axis bearing, an included angle is formed between the end face of the double-axis bearing and the pairing gear ring, and the meshing teeth of the double-axis bearing are meshed with the pairing gear ring at the intersection point of the included angle.
Further, a fan is arranged on one side, close to the paired gear ring, of the double-axis bearing.
Furthermore, an included angle formed by the double-axis bearing and the paired gear ring is an acute angle.
Further, the double-axis bearing comprises a first inner ring, an outer ring, a rotating steel ball, a retainer, a second inner ring, a swinging steel ball and a meshing gear ring; the first inner ring is composed of a lower part, an upper part and a supporting part from bottom to top, the retainer is arranged between the outer ring and the lower part of the first inner ring, the retainer keeps the rotating steel ball between the outer ring and the lower part of the first inner ring to form a first bearing structure, and the axle center of the part is a first axle center; the second inner ring is sleeved on the outer diameter of the first inner ring supporting part, the meshing gear ring is sleeved on the outer side of the second inner ring, a first row of swing steel balls are arranged between the meshing gear ring and the second inner ring, the meshing gear ring is positioned above the upper part of the first inner ring, a second row of swing steel balls are arranged between the meshing gear ring and the upper part of the first inner ring, the second row of swing steel balls is of a second bearing structure, the axis of the second bearing structure is a second axis, and an included angle is formed between the first axis and the second axis; the meshing teeth are arranged on one side, far away from the first inner ring, of the meshing gear ring.
Furthermore, a fan is arranged on one side, close to the paired gear ring, of the first inner ring supporting portion, a gasket is arranged between the fan and the second inner ring, a bolt penetrates through the fan and the gasket and is connected to the first inner ring supporting portion, a locking gasket is arranged at the position, connected with the fan, of the bolt, and the direction of the bolt is consistent with the direction of the second axis.
Furthermore, an included angle formed by the first axis and the second axis is an acute angle.
Furthermore, the rotating steel balls are double-row steel balls, the first row of rotating steel balls are fixed between the outer ring and the lower portion of the first inner ring, the second row of rotating steel balls are fixed between the outer ring and the lower portion of the first inner ring through a shaft ring sleeved on the lower portion of the first inner ring, the shaft ring is fastened through a nut, and a stop washer is arranged between the shaft ring and the nut.
Further, the first bearing structure is a bidirectional thrust self-aligning angular contact ball bearing; the second bearing structure is a double-row full-load thrust angular contact ball bearing.
Further, an adjusting ring is arranged between the second inner ring and the first inner ring supporting part.
Further, a key groove is formed in the lower portion of the first inner ring, and the double-shaft bearing unit is connected with the power input system through a spline.
The invention has the beneficial effects that: this patent technique is through on integrated bearing arrangement with circumference bevel gear structural design for the restriction meshes ring gear circular motion, plays the effect of splining, has realized that the plunger moves periodically from top to bottom and meshes the motionless working method of ring gear circumferencial direction, has retrencied bearing arrangement and has guaranteed whole bearing unit's function operation simultaneously.
Drawings
FIG. 1 is a schematic structural view of a dual bearing unit;
in the figure: 1. the second row of rotating steel balls, 2, the second row of rocking steel balls, 3, the first row of rocking steel balls, 4, an adjusting ring 5, a second inner ring, 6, a fan, 7, a bolt, 8 a locking washer, 9, a washer, 10, a paired gear ring, 11, a meshed gear ring, 12, a first inner ring, 13, a retainer, 14, an outer ring, 15, a shaft ring, 16, a stop washer, 17, a nut, 18, the first row of rotating steel balls, A, a first shaft center, B and a second shaft center.
Detailed Description
In order to make the structure and function of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention.
Referring to fig. 1, the highly integrated double-axis bearing unit comprises a first inner ring 12, an outer ring 14, a rotating steel ball, a retainer 13, a second inner ring 5, a swinging steel ball and a meshing gear ring 11; the first inner ring 12 consists of a lower part, an upper part and a supporting part from bottom to top, the retainer 13 is arranged between the outer ring 14 and the lower part of the first inner ring, the retainer 13 keeps the rotating steel ball between the outer ring and the lower part of the first inner ring to form a first bearing structure, and the axle center of the part is a first axle center A; the outer diameter of the first inner ring supporting part is sleeved with the second inner ring 5, the meshing gear ring 11 is sleeved on the outer side of the second inner ring 5, a first row of swinging steel balls 3 is arranged between the meshing gear ring 11 and the second inner ring 5, the meshing gear ring 11 is located above the upper portion of the first inner ring, a second row of swinging steel balls 2 is arranged between the meshing gear ring 11 and the upper portion of the first inner ring, the second row of swinging steel balls 2 is of a second bearing structure, the axle center of the second row of swinging steel balls is a second axle center B, the first axle center A and the second axle center B form an included angle, meshing teeth are arranged on one side, away from the first inner ring 12, of the meshing gear ring 11 in the circumferential direction, a pairing gear ring 10 matched with the meshing teeth is arranged on one side of the double-axle center bearing, an acute angle is formed between.
Further, a fan 6 is arranged on one side of the first inner ring supporting part close to the mating gear ring 10, a gasket 9 is arranged between the fan 6 and the second inner ring 5, a bolt 7 penetrates through the fan 6 and the gasket 9 to be connected to the first inner ring supporting part, a locking gasket 8 is arranged at the position where the bolt is connected with the fan, and the direction of the bolt 7 is consistent with the direction of the second axis B.
Further, an included angle formed by the first axis A and the second axis B is an acute angle.
Further, the rotating steel balls are double-row steel balls, a first row of rotating steel balls 18 are fixed between the outer ring 14 and the lower portion of the first inner ring, a second row of rotating steel balls 1 are fixed between the outer ring 14 and the lower portion of the first inner ring through a shaft ring 15 sleeved on the lower portion of the first inner ring, the shaft ring 15 is fastened through a nut 17, and a stop washer 16 is arranged between the shaft ring and the nut. The axial position of the part is controlled by the nut 17 and the stop washer 16 added at the bottom.
Furthermore, the first bearing structure is a bidirectional thrust self-aligning angular contact ball bearing, and mainly bears axial force; the second bearing structure is a double-row full-load thrust angular contact ball bearing.
Further, an adjustment ring 4 is provided between the second inner race 5 and the first inner race support portion.
Further, the lower part of the first inner ring is provided with a key groove 19, and the double-shaft bearing unit is connected with a power input system through a spline.
The bearing unit of the present invention has the following features:
1. the bearing unit has two crossed axes, a rotating axis A and a swinging axis B;
2. this bearing unit integrated level is high, includes wherein: the bidirectional angular contact thrust ball bearing of the rotary motion part, the two rows of angular contact thrust ball bearings of the rotary and swinging motion part and other accessories.
3. The thrust angular contact ball bearing gear ring is provided with an operating raceway of a rolling body and a circumferential bevel gear structure design, is meshed with a fixed matched gear ring, limits the circumferential motion of the meshed gear ring, and plays a role in stopping rotation. The working mode that the plunger periodically moves up and down and the meshing gear ring does not move in the circumferential direction is realized.
4. The bottom of the bearing inner ring is designed into a spline structure and can be directly connected with a power input system, system connecting pieces are reduced, the space of parts is reduced, and the requirement of light weight is met.
5. The bearing unit has the advantages that the bearing unit has good heat dissipation function design, the light heat dissipation fan is designed at the top of the bearing due to high heat generated by variable load, high rotating speed and high integration of the bearing unit, so that the fan rotates to play a certain heat dissipation function in the running process of the bearing, the internal temperature of the bearing during working is reduced, and the service life of the bearing unit is prolonged.
The bearing unit has the characteristics of light weight, good stress performance, stable motion and the like, meets the characteristic of compound motion of a host machine, and realizes the function of being realized by the original parts together.
The above list is only the preferred embodiment of the present invention. It is obvious that the invention is not limited to the above embodiments, but that many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.
Claims (10)
1. High integrated double axle center bearing unit, its characterized in that: the end face of the double-axis bearing is provided with meshing teeth along the circumferential direction, one side of the double-axis bearing is provided with a pairing gear ring matched with the meshing teeth, the end face of the double-axis bearing and the pairing gear ring form an included angle, and the meshing teeth of the double-axis bearing are meshed with the pairing gear ring at the intersection point of the included angle.
2. The highly integrated dual axial bearing unit according to claim 1, wherein: and a fan is arranged on one side of the double-shaft bearing close to the mating gear ring.
3. The highly integrated dual axial bearing unit according to claim 1, wherein: and an included angle formed by the double-axis bearing and the paired gear ring is an acute angle.
4. The high integration double axial bearing unit according to claim 1, 2 or 3, wherein: the double-axis bearing comprises a first inner ring, an outer ring, a rotating steel ball, a retainer, a second inner ring, a swinging steel ball and a meshing gear ring; the first inner ring is composed of a lower part, an upper part and a supporting part from bottom to top, the retainer is arranged between the outer ring and the lower part of the first inner ring, the retainer keeps the rotating steel ball between the outer ring and the lower part of the first inner ring to form a first bearing structure, and the axle center of the part is a first axle center; the second inner ring is sleeved on the outer diameter of the first inner ring supporting part, the meshing gear ring is sleeved on the outer side of the second inner ring, a first row of swing steel balls are arranged between the meshing gear ring and the second inner ring, the meshing gear ring is positioned above the upper part of the first inner ring, a second row of swing steel balls are arranged between the meshing gear ring and the upper part of the first inner ring, the second row of swing steel balls is of a second bearing structure, the axis of the second bearing structure is a second axis, and an included angle is formed between the first axis and the second axis; the meshing teeth are arranged on one side, far away from the first inner ring, of the meshing gear ring.
5. The highly integrated dual axial bearing unit according to claim 4, wherein: the fan is arranged on one side, close to the paired gear ring, of the first inner ring supporting portion, a gasket is arranged between the fan and the second inner ring, a bolt penetrates through the fan and the gasket and is connected to the first inner ring supporting portion, a locking gasket is arranged at the position, connected with the fan, of the bolt, and the direction of the bolt is consistent with the direction of the second axis.
6. The highly integrated dual axial bearing unit according to claim 4, wherein: the first axis and the second axis form an acute angle.
7. The highly integrated dual axial bearing unit according to claim 4, wherein: the rotating steel balls are double-row steel balls, the first row of rotating steel balls are fixed between the outer ring and the lower portion of the first inner ring, the second row of rotating steel balls are fixed between the outer ring and the lower portion of the first inner ring through a shaft ring sleeved on the lower portion of the first inner ring, the shaft ring is fastened through a nut, and a stop washer is arranged between the shaft ring and the nut.
8. The highly integrated dual axial bearing unit according to claim 4, wherein: the first bearing structure is a bidirectional thrust self-aligning angular contact ball bearing; the second bearing structure is a double-row full-load thrust angular contact ball bearing.
9. The highly integrated dual axial bearing unit according to claim 4, wherein: an adjusting ring is arranged between the second inner ring and the first inner ring supporting part.
10. The highly integrated dual axial bearing unit according to claim 4, wherein: the lower part of the first inner ring is provided with a key groove, and the double-shaft bearing unit is connected with the power input system through a spline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911043726.2A CN110725857B (en) | 2019-10-30 | 2019-10-30 | High-integration double-shaft spindle bearing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911043726.2A CN110725857B (en) | 2019-10-30 | 2019-10-30 | High-integration double-shaft spindle bearing unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110725857A true CN110725857A (en) | 2020-01-24 |
| CN110725857B CN110725857B (en) | 2024-02-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911043726.2A Active CN110725857B (en) | 2019-10-30 | 2019-10-30 | High-integration double-shaft spindle bearing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110725857B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH109259A (en) * | 1996-06-26 | 1998-01-13 | Nippon Seiko Kk | Bearing unit for supporting pinion shaft of differential gear |
| CN201144960Y (en) * | 2007-12-20 | 2008-11-05 | 比亚迪股份有限公司 | Biserial self-aligning roller bearing |
| CN103032459A (en) * | 2012-12-28 | 2013-04-10 | 瓦房店轴承集团有限责任公司 | Combination bearing provided with double-axis structure |
| CN103573928A (en) * | 2013-11-12 | 2014-02-12 | 湖南中联重科车桥有限公司 | Speed reducer, bearing-type planetary gear and sun wheel |
| CN204664197U (en) * | 2015-05-21 | 2015-09-23 | 宁波达奋精工轴承有限公司 | A kind of bearing of convenient heat radiation |
| DE102014222281A1 (en) * | 2014-10-31 | 2016-05-04 | Aktiebolaget Skf | Bearing arrangement for a planetary gear |
| CN207261466U (en) * | 2017-09-16 | 2018-04-20 | 天津泰鼎晟业传动技术发展有限公司 | A kind of bearing with heat sinking function |
| CN108612766A (en) * | 2018-07-11 | 2018-10-02 | 如皋市福锴金属制品有限公司 | A kind of angular contact gear-bearing |
| CN211082560U (en) * | 2019-10-30 | 2020-07-24 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Highly-integrated double-axis bearing unit |
-
2019
- 2019-10-30 CN CN201911043726.2A patent/CN110725857B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH109259A (en) * | 1996-06-26 | 1998-01-13 | Nippon Seiko Kk | Bearing unit for supporting pinion shaft of differential gear |
| CN201144960Y (en) * | 2007-12-20 | 2008-11-05 | 比亚迪股份有限公司 | Biserial self-aligning roller bearing |
| CN103032459A (en) * | 2012-12-28 | 2013-04-10 | 瓦房店轴承集团有限责任公司 | Combination bearing provided with double-axis structure |
| CN103573928A (en) * | 2013-11-12 | 2014-02-12 | 湖南中联重科车桥有限公司 | Speed reducer, bearing-type planetary gear and sun wheel |
| DE102014222281A1 (en) * | 2014-10-31 | 2016-05-04 | Aktiebolaget Skf | Bearing arrangement for a planetary gear |
| CN204664197U (en) * | 2015-05-21 | 2015-09-23 | 宁波达奋精工轴承有限公司 | A kind of bearing of convenient heat radiation |
| CN207261466U (en) * | 2017-09-16 | 2018-04-20 | 天津泰鼎晟业传动技术发展有限公司 | A kind of bearing with heat sinking function |
| CN108612766A (en) * | 2018-07-11 | 2018-10-02 | 如皋市福锴金属制品有限公司 | A kind of angular contact gear-bearing |
| CN211082560U (en) * | 2019-10-30 | 2020-07-24 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Highly-integrated double-axis bearing unit |
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| Publication number | Publication date |
|---|---|
| CN110725857B (en) | 2024-02-09 |
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