CN110725857B - High-integration double-shaft spindle bearing unit - Google Patents
High-integration double-shaft spindle bearing unit Download PDFInfo
- Publication number
- CN110725857B CN110725857B CN201911043726.2A CN201911043726A CN110725857B CN 110725857 B CN110725857 B CN 110725857B CN 201911043726 A CN201911043726 A CN 201911043726A CN 110725857 B CN110725857 B CN 110725857B
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- inner ring
- ring
- bearing
- double
- gear ring
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- 229910000831 Steel Inorganic materials 0.000 claims description 31
- 239000010959 steel Substances 0.000 claims description 31
- 230000001154 acute effect Effects 0.000 claims description 7
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 230000013011 mating Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process 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
- 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 high-integration double-shaft mandrel unit. According to the technology, the circumferential bevel gear structural design is integrated on the bearing structure and used for limiting the circumferential motion of the meshing gear ring, so that the rotation stopping effect is achieved, the working mode that the plunger moves up and down periodically and the circumferential direction of the meshing gear ring is fixed is realized, the bearing structure is simplified, and meanwhile, the functional operation of the whole bearing unit is guaranteed.
Description
Technical Field
The invention belongs to the technical field of bearing equipment manufacturing, and particularly relates to a high-integration double-shaft mandrel bearing unit.
Background
Because of the periodic circumferential and axial compound motion of an aircraft hydraulic pump or other similar hydraulic pump system, a compact, lightweight design of bearings for supporting the hydraulic pump rotors is required. At present, the aviation hydraulic pump bearing and other related accessories are assembled together independently, and the structure is bulky and complex. The part has larger axial load and higher movement rotating speed, and the part support bearing is required to have the characteristics of compact structure, stable operation, strong bearing capacity, high reliability and the like, and simultaneously, the periodic axial and circumferential compound movement of the host machine is satisfied.
Disclosure of Invention
In view of the above prior art, it is an object of the present invention to provide a highly integrated biaxial spindle bearing unit with a highly integrated unitized design of the support bearing with other associated accessories.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the high-integration double-shaft spindle unit is characterized in that meshing teeth are arranged on the end face of the double-shaft spindle in the circumferential direction, a matched gear ring matched with the meshing teeth is arranged on one side of the double-shaft spindle, an included angle is formed between the end face of the double-shaft spindle and the matched gear ring, and the meshing teeth of the double-shaft spindle are meshed with the matched gear ring at the intersection point of the included angle.
Further, a fan is arranged on one side of the double-shaft spindle bearing, which is close to the matched gear ring.
Further, an included angle formed by the double-axis bearing and the matched gear ring is an acute angle.
Further, the double-shaft mandrel comprises a first inner ring, an outer ring, a rotary 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 holds the rotary 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 first bearing structure 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 swinging 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 swinging steel balls are arranged between the meshing gear ring and the upper part of the first inner ring, the second inner ring is of a second bearing structure, the axle center of the second bearing structure is a second axle center, and an included angle is formed between the first axle center and the second axle center; the meshing teeth are arranged on one side of the meshing gear ring, which is far away from the first inner ring.
Further, a fan is arranged on one side, close to the matched 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 to be connected to the first inner ring supporting portion, a locking gasket is arranged at the position where the fan is connected with the bolt, and the direction of the bolt is consistent with that of the second axis.
Further, an included angle formed by the first axis and the second axis is an acute angle.
Further, the rotary steel balls are double-row steel balls, the first row of rotary steel balls are fixed between the outer ring and the lower part of the first inner ring, the second row of rotary steel balls are fixed between the outer ring and the lower part of the first inner ring through a shaft collar sleeved on the lower part of the first inner ring, the shaft collar is fastened through a nut, and a stop washer is arranged between the shaft collar and the nut.
Further, the first bearing structure is a bidirectional thrust aligning angular contact ball bearing; the second bearing structure is a double-row full-load thrust angular contact ball bearing.
Further, an adjustment ring is provided between the second inner ring and the first inner ring support portion.
Further, a key groove is formed in the lower portion of the first inner ring, and the double-shaft mandrel bearing unit is connected with the power input system through a spline.
The beneficial effects of the invention are as follows: according to the technology, the circumferential bevel gear structural design is integrated on the bearing structure and used for limiting the circumferential motion of the meshing gear ring, so that the rotation stopping effect is achieved, the working mode that the plunger moves up and down periodically and the circumferential direction of the meshing gear ring is fixed is realized, the bearing structure is simplified, and meanwhile, the functional operation of the whole bearing unit is guaranteed.
Drawings
FIG. 1 is a schematic diagram of a biaxial mandrel unit;
in the figure: 1. the second column of rotating steel balls, 2, the second column of swinging steel balls, 3, the first column of swinging steel balls, 4, an adjusting ring 5, a second inner ring, 6, a fan, 7, a bolt, 8 locking washers, 9, washers, 10, a mating gear ring, 11, a meshing gear ring, 12, a first inner ring, 13, a retainer, 14, an outer ring, 15, a shaft collar, 16, a locking washer, 17, a nut, 18 and the first column 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 solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention.
Referring to fig. 1, a high integration double-shaft spindle unit comprises a first inner ring 12, an outer ring 14, rotating steel balls, a retainer 13, a second inner ring 5, rocking steel balls and an engaged ring gear 11; the first inner ring 12 is composed 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 holds the rotary 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 first bearing structure is a first axle center A; the second inner ring 5 is sleeved on the outer diameter of the first inner ring supporting part, 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 are arranged between the meshing gear ring 11 and the second inner ring 5, the meshing gear ring 11 is positioned above the upper part of the first inner ring, a second row of swinging steel balls 2 are arranged between the meshing gear ring 11 and the upper part of the first inner ring, the second inner ring is of a second bearing structure, the axle center of the second bearing structure is a second axle center B, the first axle center A and the second axle center B have an included angle, one side of the meshing gear ring 11 far away from the first inner ring 12 is provided with meshing teeth along the circumferential direction, one side of the double axle center bearing is provided with a matched gear ring 10 matched with the meshing teeth, the meshing gear ring 11 forms an acute angle with the matched gear ring 10, and the meshing teeth of the meshing gear ring are meshed with the matched gear ring 10 at the intersection point of the acute angle.
Further, a fan 6 is arranged on one side of the first inner ring supporting portion, which is 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 portion, a locking gasket 8 is arranged at the position of the bolt connected with the fan, and the direction of the bolt 7 is consistent with that of the second shaft 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 part of the first inner ring, a second row of rotating steel balls 1 are fixed between the outer ring 14 and the lower part of the first inner ring through a shaft collar 15 sleeved on the lower part of the first inner ring, the shaft collar 15 is fastened through a nut 17, and a stop washer 16 is arranged between the shaft collar and the nut. The axial position of the part is controlled by a nut 17 with a bottom added and a stop washer 16.
Further, the first bearing structure is a bidirectional thrust 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 adjusting ring 4 is provided between the second inner ring 5 and the first inner ring support portion.
Further, a key groove 19 is formed in the lower portion of the first inner ring, and the double-shaft spindle bearing unit is connected with the power input system through a spline.
The bearing unit of the invention has the following characteristics:
1. the bearing unit is provided with two crossed axis lines, a rotating axis line A and a swinging axis line B;
2. the bearing unit has high integration level, and comprises: the two-way thrust angular contact ball bearing of the rotary motion part, the two rows of full-packing thrust angular contact 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 operation rollaway nest of rolling bodies and a circumferential bevel gear structure design, is meshed with a fixed pairing gear ring, limits the circumferential movement of the meshing gear ring and plays a role in stopping rotation. The working mode that the plunger moves up and down periodically and the meshing gear ring is fixed in the circumferential direction is realized.
4. The bottom of the bearing inner ring is designed into a spline structure, so that the bearing inner ring can be directly connected with a power input system, system connectors are reduced, the space of parts is reduced, and the light-weight requirement is met.
5. The bearing unit has the advantages that the bearing unit has excellent heat dissipation function design, and the bearing top is designed with the light heat dissipation fan due to the high heat generated by the variable load, the high rotating speed and the high integration of the bearing unit, so that the fan rotates to play a certain role in heat dissipation in the running process of the bearing, the internal temperature of the bearing during the working process is reduced, and the service life of the bearing unit is prolonged.
The technology of the patent is to design the supporting bearing and other related accessories in a highly integrated and unitized way, and the bearing unit has the characteristics of light weight, good stress performance, stable movement and the like, and meets the characteristic of compound movement of a host machine, so that the bearing unit realizes the functions commonly realized by the original parts.
The foregoing list is only the preferred embodiments of the present invention. Obviously, the invention is not limited to the above embodiments, but many variations are possible. All modifications directly derived or suggested to one skilled in the art from the present disclosure should be considered as being within the scope of the present invention.
Claims (8)
1. The high-integration double-shaft mandrel unit is characterized in that: the end face of the double-shaft spindle bearing is provided with meshing teeth along the circumferential direction, one side of the double-shaft spindle bearing is provided with a matched gear ring matched with the meshing teeth, the end face of the double-shaft spindle bearing and the matched gear ring form an included angle, and the meshing teeth of the double-shaft spindle bearing are meshed with the matched gear ring at the intersection point of the included angle; the double-shaft mandrel comprises a first inner ring, an outer ring, a rotary 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 holds the rotary 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 first bearing structure 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 swinging 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 swinging steel balls are arranged between the meshing gear ring and the upper part of the first inner ring, the second inner ring is of a second bearing structure, the axle center of the second bearing structure is a second axle center, and an included angle is formed between the first axle center and the second axle center; the meshing teeth are arranged on one side of the meshing gear ring, which is far away from the first inner ring; the included angle formed by the double-axis bearing and the matched gear ring is an acute angle.
2. The highly integrated biaxial bearing unit of claim 1, wherein: and a fan is arranged on one side of the double-shaft spindle bearing, which is close to the matched gear ring.
3. The highly integrated biaxial bearing unit of claim 1, wherein: the fan is arranged on one side, close to the matched 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 to be connected to the first inner ring supporting portion, a locking gasket is arranged at the position where the fan is connected with the bolt, and the direction of the bolt is consistent with that of the second axis.
4. The highly integrated biaxial bearing unit of claim 1, wherein: the included angle formed by the first axis and the second axis is an acute angle.
5. The highly integrated biaxial bearing unit of claim 1, wherein: the rotary steel balls are double-row steel balls, the first row of rotary steel balls are fixed between the outer ring and the lower part of the first inner ring, the second row of rotary steel balls are fixed between the outer ring and the lower part of the first inner ring through a shaft collar sleeved on the lower part of the first inner ring, the shaft collar is fastened through a nut, and a stop washer is arranged between the shaft collar and the nut.
6. The highly integrated biaxial bearing unit of claim 1, wherein: the first bearing structure is a bidirectional thrust aligning angular contact ball bearing; the second bearing structure is a double-row full-load thrust angular contact ball bearing.
7. The highly integrated biaxial bearing unit of claim 1, wherein: an adjustment ring is disposed between the second inner ring and the first inner ring support portion.
8. The highly integrated biaxial bearing unit of claim 1, wherein: the lower part of the first inner ring is provided with a key groove, and the double-shaft mandrel 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 CN110725857A (en) | 2020-01-24 |
| CN110725857B true CN110725857B (en) | 2024-02-09 |
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ID=69223488
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 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 |
| 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 gear |
| 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 |
|---|---|
| CN110725857A (en) | 2020-01-24 |
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