CN101059151A - Floating sliding bearing with forced lubrication function for rotary machine - Google Patents
Floating sliding bearing with forced lubrication function for rotary machine Download PDFInfo
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- CN101059151A CN101059151A CN 200710049232 CN200710049232A CN101059151A CN 101059151 A CN101059151 A CN 101059151A CN 200710049232 CN200710049232 CN 200710049232 CN 200710049232 A CN200710049232 A CN 200710049232A CN 101059151 A CN101059151 A CN 101059151A
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- bearing
- outer ring
- floating sliding
- sliding bearing
- spiral slot
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Abstract
A floating sliding bearing with forced lubricating function which applies to bearing various loads, particularly rotating machinery with heavy load and frequent pressure fluctuation consists of bearing seat, floating sliding bearing and axle. The outer ring of designed floating sliding bearing has one or more strips of parallel spiral groove which diameter is smaller than the diameter of outer ring surface and changes from 0. 01 mm to about 3. 00mm. The concave spiral groove has the function of forcing the lubricating media move up from bottom along the groove when works to ensure the forced supplementary of lubricating media lost on the outer ring of bearing during the working process and maintain the dynamic pressure lubricating between the bearing outer ring and bearing seat, then the friction abrasion is reduced and the working life of bearing is improved, thereby the purpose of increasing mechanical life is achieved. The bearing can be used as sliding bearings of various rotary set of axes structures.
Description
Technical field
Patent of the present invention relates to a kind of various load of bearing, particularly big load, the frequent employed floating sliding bearing of rotating machinery of pressure surge.In vertically arranged rotating machinery work, have the enforced lubricating medium and move along bearing outer ring, keep working interface to form the hydrodynamic lubrication oil film, to reduce the friction and wear of fitting surface, prolong bearing life.
Background technique
Known at present, as under the varying load environment, to work running shaft, working pressure constantly fluctuates, and this variation is at random.Improve the operating life of machine under varying load or rated working pressure, improving bearing life is a problem that must solve.Be difficult to the supplemental lubrication medium especially, shoe cream room is (as rock bit) in small rotation machinery, lubricant medium between working interface is with loss gradually, tempering property medium may constantly produce, the operating conditions of bearing is with rapid deterioration, thereby may cause the inefficacy in advance of machinery because of damage of the bearing, this phenomenon often is created in the petroleum machinery under the abominable working environment.
It must be interior big outer little that the operating conditions of floating sliding bearing requires the matching gap between bearing, axle and bearing support, because the gap between bearing and bearing support is little, causes wear extent to increase because of lubricant medium lacks in the time of just may causing bearing outer ring work.This wearing and tearing will directly have influence on the service behaviour of floating sliding bearing and shorten the operating life of rotating machinery.
For the rotating machinery that bears varying load, as machineries such as rock bit, because it is narrow and small to store the space of lubricant medium, and lubricant oil or lubricating grease that work the time has been difficult to replenish loss, therefore how to guarantee that floating sliding bearing keeps in the long period having lubricant medium on the frictional interface in this working environment, realize the hydrodynamic lubrication of bearing, reduce the fretting wear between working surface, improving the life-span of fitting surface, is a problem that urgency is to be solved.At this moment, the solution of normally used continuous supplemental lubrication medium can't be carried out.
Summary of the invention
Purpose of the present invention is exactly will solve to force the lubricant medium that will fall to the bearing support bottom to be pumped on the less bearing outer ring in bearing play in a period of time, thereby guarantees to have continuous lubricant film between lubricated interface, improves the operating life of equipment.
The present invention propose a kind of can be during operation in, make bearing outer ring can force the lubricant medium that falls to the bearing bottom to move upward with less matching gap, to form effective dynamic pressure oil film at bearing outside surface, reduce the energy loss that fretting wear caused between bearing outer ring and bearing support, and bearing surface damages the early failue that causes, special when having impulsive load, avoid direct contact the between bearing outer ring and bearing support internal surface as much as possible, reduce the fretting wear of bearing outer ring, improve the operating life of floating sliding bearing.
The present invention has adopted following technological scheme: this structure is made up of bearing support, floating sliding bearing and axle, is processed with spiral slot on the bearing.Bearing support, bearing and between centers work initial stage have lubricant medium, and lubricant medium can be a lubricant oil, also can be lubricating grease.The outer ring of designed floating sliding bearing has one or more spiral slot, and the diameter of this spiral slot is less than the diameter on surface, outer ring, and its value changes about from 0.01mm to 3.00mm.This spiral slot has the function that the enforced lubricating medium moves upward along groove from the bottom when work, to guarantee forcing the to replenish lubricant medium of bearing outer ring surface losses at work.
Its working principle is when the some direction of axial rotary is rotated, because the frictional force between lubricant medium and bearing surface and the shear resistance of the intermolecular existence of lubricant medium, orders about bearing and produces relatively rotating in the same way.Simultaneously, because the particularity of the narrow and small oil storage space of bearing and the characteristic (as the shoe cream room of rock bit) that lubricant medium is difficult to replenish, after causing bearing outer ring work certain hour, aggravate wearing and tearing with the bearing support internal surface because of lacking lubricant medium on the working interface, cause bearing early failue, and then have influence on the life-span of rotating machinery.
Because the adsorption performance of lubricant medium and the swabbing action of bearing movable, the enforced lubricating medium is constantly moved upward from have the spiral slot with the opposite rotation direction of moving direction, replenish the lubricant medium between bearing outer ring and bearing support, to keep the hydrodynamic lubrication between them, less fretting wear, improve the operating life of bearing, reach the purpose that improves the machine work life-span.
Advantage of the present invention is:
(1) bearing structure is simple; (2) be easy to processing, installation, maintenance and replacing; (3) the spiral slot quantity of bearing outer ring and width are determined according to the structure and the running parameter of bearing; (4) selected bearing material has certain ability of holding foreign matter; When (5) working, guarantee that inner and outer surface produces oil film pressure simultaneously, to improve antiwhip and operating life.
Description of drawings
Fig. 1 is an equal diameter floating sliding bearing assembling relationship figure of the present invention
Fig. 2 is an equal diameter floating sliding bearing structural representation of the present invention
Fig. 3 is a change diameter floating sliding bearing assembling relationship figure of the present invention
Fig. 4 is a change diameter floating sliding bearing structural representation of the present invention
Embodiment
Present embodiment bearing 2 inner rings can be that isodiametric (accompanying drawing 1,2) also can be (accompanying drawing 3,4) that becomes diameter, and bearing 2 outer rings then are equal diameter.The spiral slot of being processed on bearing 2 outer rings 4 can be one, also can be many, and the axial width of groove is mainly determined according to working environment, physical dimension and the running parameter of bearing 2.The rotation direction of spiral slot 4 must be opposite with the moving direction of axle 3.In the work, when axle 3 rotatablely moves, because the frictional force between lubricant medium and bearing 2 surfaces and the shear resistance of the intermolecular existence of lubricant medium, driving bearing 2 rotates in the same way, meanwhile, 4 of the spiral slots of processing on bearing 2 outer rings will force the lubricant medium of bearing 2 bottoms by the rotation direction spiral slot 4 opposite with moving direction, move upward along bearing 2 outer surfaces, arrive bearing 2 outer surfaces everywhere by means of this pumping power, and discharge and be full of between bearing 2 outer surfaces and the bearing support 1, reach the purpose of pressure lubrication.
The present invention is applicable to the sliding bearing with the rotating machinery of various mounting type work.
Claims (5)
1. a rotating machinery is with the floating sliding bearing with pressure lubrication function, form by bearing support (1), floating sliding bearing (2) and axle (3), be processed with spiral slot (4) on the bearing (2), bearing (2) inner ring can be to become diameter, also can be isodiametric, it is characterized in that guaranteeing that bearing (2) outer ring can form continuous hydrodynamic lubrication oil film by the enforced lubricating medium when work between working surface.
2. floating sliding bearing according to claim 1 (2), it is characterized in that: the diameter of the spiral slot (4) that designs on bearing (2) outer ring is less than the diameter on surface, outer ring, its value changes from 0.01mm to 3.00mm, and the size of its lead angle is determined according to running parameter.
3. floating sliding bearing according to claim 1 (2), it is characterized in that: the rotation direction of spiral slot (4) must be opposite with the moving direction of axle (3), to move upward along spiral slot (4) in the work of enforced lubricating medium, with the lubricant medium of supplying with or lose additional bearing (2) outer ring.
4. floating sliding bearing 2 according to claim 1 is characterized in that: bearing 2 materials have certain ability of holding foreign matter.
5. floating sliding bearing according to claim 1 (2) is characterized in that: the quantity of the spiral slot (4) of bearing (2) outer ring and width require to determine according to bearing (2) physical dimension and running parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710049232 CN101059151A (en) | 2007-06-01 | 2007-06-01 | Floating sliding bearing with forced lubrication function for rotary machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710049232 CN101059151A (en) | 2007-06-01 | 2007-06-01 | Floating sliding bearing with forced lubrication function for rotary machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101059151A true CN101059151A (en) | 2007-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710049232 Pending CN101059151A (en) | 2007-06-01 | 2007-06-01 | Floating sliding bearing with forced lubrication function for rotary machine |
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| CN (1) | CN101059151A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644660A (en) * | 2012-05-11 | 2012-08-22 | 西南石油大学 | Slide bearing joint in well with adjustable wellhead |
| CN103343773A (en) * | 2013-07-10 | 2013-10-09 | 上海电力修造总厂有限公司 | Sliding bearing with floating type bearing pads |
| CN103591142A (en) * | 2013-10-12 | 2014-02-19 | 苏州市吴中区曙光铜管厂 | Self-lubricating bearing |
| CN105324552A (en) * | 2013-06-27 | 2016-02-10 | 博特温·盖斯特 | Sliding block for a bourke reciprocating engine |
| CN105570293A (en) * | 2016-03-09 | 2016-05-11 | 娄底市佳华机械有限公司 | Multi-layer oil film sliding bearing |
-
2007
- 2007-06-01 CN CN 200710049232 patent/CN101059151A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644660A (en) * | 2012-05-11 | 2012-08-22 | 西南石油大学 | Slide bearing joint in well with adjustable wellhead |
| CN105324552A (en) * | 2013-06-27 | 2016-02-10 | 博特温·盖斯特 | Sliding block for a bourke reciprocating engine |
| US9995141B2 (en) | 2013-06-27 | 2018-06-12 | Bertwin R. Geist | Sliding block for a scotch yoke reciprocating piston engine |
| CN105324552B (en) * | 2013-06-27 | 2018-08-10 | 博特温·盖斯特 | Sliding block for scotch yoke conventional engine |
| CN103343773A (en) * | 2013-07-10 | 2013-10-09 | 上海电力修造总厂有限公司 | Sliding bearing with floating type bearing pads |
| CN103343773B (en) * | 2013-07-10 | 2016-05-04 | 中国电建集团上海能源装备有限公司 | The sliding bearing that a kind of bearing shell is floating type |
| CN103591142A (en) * | 2013-10-12 | 2014-02-19 | 苏州市吴中区曙光铜管厂 | Self-lubricating bearing |
| CN105570293A (en) * | 2016-03-09 | 2016-05-11 | 娄底市佳华机械有限公司 | Multi-layer oil film sliding bearing |
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