CN110206608A - A kind of roller rock arm with oil storage function - Google Patents
A kind of roller rock arm with oil storage function Download PDFInfo
- Publication number
- CN110206608A CN110206608A CN201910610957.0A CN201910610957A CN110206608A CN 110206608 A CN110206608 A CN 110206608A CN 201910610957 A CN201910610957 A CN 201910610957A CN 110206608 A CN110206608 A CN 110206608A
- Authority
- CN
- China
- Prior art keywords
- floating bushing
- oil
- oil storage
- rock arm
- storage function
- 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.)
- Pending
Links
- 238000003860 storage Methods 0.000 title claims abstract description 36
- 239000011435 rock Substances 0.000 title claims abstract description 21
- 230000007704 transition Effects 0.000 claims description 13
- 230000008602 contraction Effects 0.000 claims description 11
- 238000009826 distribution Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000005461 lubrication Methods 0.000 abstract description 10
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 38
- 239000010687 lubricating oil Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/10—Lubrication of valve gear or auxiliaries
- F01M9/106—Oil reservoirs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/10—Lubrication of valve gear or auxiliaries
- F01M9/107—Lubrication of valve gear or auxiliaries of rocker shaft bearings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
A kind of roller rock arm with oil storage function, it is mounted between tappet, cam and valve, including rocker stand and bearing external member; rocker stand includes two side walls and the bottom plate with loading end, ball-and-socket; there is pilot hole between loading end and ball-and-socket, pin shaft hole is offered on the side wall at pilot hole, the bearing external member includes pin shaft, idler wheel outer ring and floating bushing; for floating bushing between pin shaft and idler wheel outer ring and respectively with the two sliding contact, floating bushing surface is equipped with oil-bearing structure.Roller rock arm of the invention uses the structure of sliding bearing, it is stable working, reliable, noiseless, oil-bearing structure on floating bushing makes in sliding bearing under the conditions of hydrodynamic lubrication, sliding surface forms oil film and is separated without directly contacting, friction loss and surface abrasion can be greatly reduced, for oil film there are also certain vibration absorption ability, load bearing area is big, impact resistance prolongs the service life.
Description
Technical field
The present invention relates to engine fittings technical field, in particular to a kind of roller rock arm with oil storage function.
Background technique
Roller rock arm is installed between tappet, cam and valve, is the important component for engine power system, by shaking
The composition such as cantilever crane, bearing external member.
Existing roller rock arm is deposited noise, unstable problem at work, and the lubricant effect of bearing external member is bad, and zero
Directly contact results in friction loss and surface abrasion between part, bears load and shock resistance is poor, and reduce product uses the longevity
Life.
Summary of the invention
The invention solves problem of the prior art, provide a kind of roller rock arm with oil storage function, manufacturing process
Simply, the requirement of component processing, assembly is reduced.
In order to achieve the above objectives, The technical solution adopted by the invention is as follows:
A kind of roller rock arm with oil storage function, is mounted between tappet, cam and valve, including rocker stand and bearing external member,
Rocker stand includes two side walls and the bottom plate with loading end, ball-and-socket, has pilot hole between loading end and ball-and-socket, is located at assembly
Pin shaft hole is offered on side wall at hole, the bulb of tappet is connect with ball-and-socket by bulb card, and valve slides phase with loading end
It supports, cam offsets with the rolling of bearing external member, and the bearing external member includes pin shaft, idler wheel outer ring and floating bushing, and floating bushing is located at pin
Between axis and idler wheel outer ring and respectively with the two sliding contact, floating bushing surface is equipped with oil-bearing structure.Bearing external member passes through pin shaft
The pilot hole being assemblied between pin shaft hole, cam are rolled with idler wheel outer ring and are offseted, and by roller rock arm, cam transfers force to gas
Men Shang, to control the lift of valve, valve is slided in loading end, and two sidewalls can anti-air-stop gate abjection.The floating of sliding contact
The oil-bearing structure of set cooperation thereon is working so that storing certain lubricating oil under the conditions of hydrodynamic lubrication, in oil-bearing structure
When form oil film, slidingsurface is separated by lubricating oil without directly contacting.
Preferably, side wall is provided with the contraction section inwardly squeezed, contraction section at the two of the pilot hole one or both ends
Effect be to limit the axial movement of idler wheel outer ring, the axial movement of floating bushing limited by the two sidewalls of pilot hole.
Preferably, the spacing L1 of two side walls is greater than the width L2 of floating bushing, the width of floating bushing at the pilot hole
L2 is significantly greater than the spacing L3 of two contraction sections, and the spacing L3 of two contraction sections is greater than the width L4 of idler wheel outer ring.That is floating bushing
There is the contactless cooperation in interval with side wall, idler wheel outer ring and contraction section are also to have the contactless cooperation in interval, and the width of floating bushing is bright
The aobvious width greater than idler wheel outer ring.
Preferably, the oil-bearing structure of the floating bushing is the periphery setting certain amount in floating bushing through periphery
Axial notch.Under the conditions of hydrodynamic lubrication, lubricating oil can enter storage in axial notch, and axial notch can be uniformly equidistant
Distribution can also have the combination of certain rule to be distributed with other.
Preferably, the oil-bearing structure of the floating bushing is periphery at least one circumferential groove in its end portion of setting in floating bushing,
Under the conditions of hydrodynamic lubrication, lubricating oil can enter storage in circumferential groove in its end portion.Circumferential groove in its end portion can be complete one week, can also be with
It is the structure for having interruption intervals formula.
Preferably, the oil-bearing structure of the floating bushing is a certain number of pits of periphery setting in floating bushing,
Under the conditions of hydrodynamic lubrication, lubricating oil can enter pit storage.Pit generally at certain intervals circumferential array in floating bushing
Periphery, the pit band of formation can be one or a plurality of.
Preferably, between the periphery of the floating bushing and the anchor ring of two sides be equipped with transition segmental arc, oil-bearing structure be
A certain number of cambered surface grooves are arranged in transition segmental arc, and under the conditions of hydrodynamic lubrication, lubricating oil can enter the storage of cambered surface groove.Arc
Face groove can uniformly be equally spaced, and can also have the combination of certain rule to be distributed with other.
Preferably, between the periphery of the floating bushing and the anchor ring of two sides be equipped with transition segmental arc, oil-bearing structure be
A certain number of helical form cambered surface grooves are arranged in transition segmental arc, i.e. path of the groove from periphery to anchor ring is spiral helicine song
Line.Helical form cambered surface groove can uniformly be equally spaced, and can also have the combination of certain rule to be distributed with other.
Preferably, the oil-bearing structure of the floating bushing is the periphery setting certain amount in floating bushing in circumferential array
The short groove of distribution.Short groove generally periphery of the circumferential array in floating bushing at certain intervals.
Preferably, the oil storage band quantity that the short groove circumferential array is formed is to be at least one, the direction of short groove
For axial direction or inclined angle.It is axially distributed, can be between adjacent short groove straight at one if it is a plurality of oil storage band
It on line or is staggered, is distributed if it is a plurality of oil storage band tilt angle, the reeded angle of institute can be identical, or inclination
Angular positive-negative is interspersed.
The beneficial effects of the present invention are: it is stable working, reliable, noiseless using the structure of sliding bearing, on floating bushing
Oil-bearing structure make in sliding bearing under the conditions of hydrodynamic lubrication, sliding surface formed oil film be separated without directly connecing
Touching, can greatly reduce friction loss and surface abrasion, there are also certain vibration absorption abilities for oil film, and load bearing area is big, resistance to
Impact, prolongs the service life.
Detailed description of the invention
Fig. 1 is operation schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of embodiment one；
Fig. 3 is the main view of embodiment one；
Fig. 4 is the structural schematic diagram of rocker stand in embodiment one；
Fig. 5 is the structural schematic diagram of one middle (center) bearing external member of embodiment；
Fig. 6 is the main view of one middle (center) bearing external member of embodiment；
Fig. 7 is the main view of floating bushing in embodiment two；
Fig. 8 is the structural schematic diagram of two middle (center) bearing external member of embodiment；
Fig. 9 is the main view of floating bushing in embodiment three；
Figure 10 is the main view of floating bushing in example IV；
Figure 11 is the main view of floating bushing in embodiment five；
Figure 12 is the structural schematic diagram of five middle (center) bearing external member of embodiment；
Figure 13 is the main view of floating bushing in embodiment six；
Figure 14 is the structural schematic diagram of six middle (center) bearing external member of embodiment；
Figure 15 is the main view of floating bushing in embodiment seven；
Figure 16 is the structural schematic diagram of seven middle (center) bearing external member of embodiment.
In figure: 1, tappet；2, cam；3, valve；4, rocker stand；4.1, side wall；4.2, loading end；4.3, ball-and-socket；4.4,
Pilot hole；4.5, pin shaft hole；4.6, contraction section；5, pin shaft；6, idler wheel outer ring；7, floating bushing；7.1, periphery；7.2, anchor ring；
7.3, transition segmental arc；7.4, axial notch；7.5, circumferential groove in its end portion；7.6, pit；7.7, cambered surface groove；7.8, helical form cambered surface is recessed
Slot；7.9, short groove.
Specific embodiment
Below by specific embodiment and attached drawing, the present invention is further illustrated.
Embodiment one: as shown in figures 1 to 6, a kind of roller rock arm with oil storage function is mounted on tappet 1, cam 2 and valve
Between 3, including rocker stand 4 and bearing external member, rocker stand 4 include two side walls 4.1 and the bottom with loading end 4.2, ball-and-socket 4.3
Plate has pilot hole 4.4, offers pin shaft hole on the side wall 4.1 at pilot hole 4.4 between loading end 4.2 and ball-and-socket 4.3
4.5, bearing external member includes pin shaft 5, idler wheel outer ring 6 and floating bushing 7, and floating bushing 7 is between pin shaft 5 and idler wheel outer ring 6 and divides
Not with the two sliding contact.The bulb of tappet 1 is connect with ball-and-socket 4.3 by bulb card, and valve 3 slides phase with loading end 4.2
It supports, cam 3 is rolled with idler wheel outer ring 6 and offseted.
Wherein, side wall 4.1 is provided with the contraction section 4.6 inwardly squeezed at the two of 4.4 one or both ends of pilot hole.Pilot hole
The spacing L1 of two side walls 4.1 is greater than the width L2 of floating bushing 7 at 4.4, and the width L2 of floating bushing 7 is significantly greater than two contraction sections
4.6 spacing L3, the spacing L3 of two contraction sections 4.6 are greater than the width L4 of idler wheel outer ring 6.
Embodiment two: in conjunction with shown in Fig. 7-8, the difference with embodiment one is, increases oil storage knot on 7 surface of floating bushing
Structure, oil-bearing structure are the axial notch 7.4 in the periphery 7.1 of floating bushing 7 setting certain amount through periphery 7.1.In liquid
Under body lubricating condition, lubricating oil can enter storage, axial notch 7.4 in axial notch 7.4 and can uniformly be equally spaced, can also
There is the combination of certain rule to be distributed with other.
Embodiment three: as shown in connection with fig. 9, the difference with embodiment one is, increases oil-bearing structure on 7 surface of floating bushing,
Oil-bearing structure is at least one circumferential groove in its end portion 7.5 of setting of periphery 7.1 in floating bushing 7.Under the conditions of hydrodynamic lubrication, lubricating oil
Storage, circumferential groove in its end portion 7.5 in circumferential groove in its end portion 7.5, which can be entered, can be complete one week, be also possible to have interruption intervals formula
Structure.
Example IV: as shown in connection with fig. 10, the difference with embodiment one is, increases oil-bearing structure on 7 surface of floating bushing,
A certain number of pits 7.6 are arranged for the periphery 7.1 in floating bushing 7 in oil-bearing structure.Under the conditions of hydrodynamic lubrication, lubricating oil meeting
Enter the storage of pit 7.6, the general circumferential array at certain intervals of pit 7.6 floating bushing 7 periphery 7.1, formation
7.6 band of pit can be one or a plurality of.
Embodiment five: in conjunction with shown in Figure 11-12, the difference with embodiment one is, increases oil storage knot on 7 surface of floating bushing
Structure, the oil-bearing structure of floating bushing 7 are in the short groove that circumferential array is distributed for certain amount is arranged in the periphery 7.1 of floating bushing 7
7.9.Short groove 7.9 is general evenly distributed at certain intervals, and the oil storage band quantity for arranging formation is to be at least one, short groove
7.9 direction is axial or inclined angle.It is axially distributed if it is a plurality of oil storage band, it can between adjacent short groove 7.9
To be point-blank or to be staggered, it is distributed if it is a plurality of oil storage band tilt angle, the angle of all short grooves 7.9
It can identical or tilt angle be positive and negative is interspersed.
Embodiment six: in conjunction with shown in Figure 13-14, the difference with embodiment one is, increases oil storage knot on 7 surface of floating bushing
Structure, is equipped with transition segmental arc 7.3 between the periphery 7.1 of floating bushing 7 and the anchor ring 7.2 of two sides, oil-bearing structure is in transition segmental arc
The 7.3 setting equally distributed cambered surface grooves 7.7 of certain amount.Under the conditions of hydrodynamic lubrication, lubricating oil can enter cambered surface groove
7.7 storages, cambered surface groove 7.7 can uniformly be equally spaced, and can also have the combination of certain rule to be distributed with other.
Embodiment seven: in conjunction with shown in Figure 15-16, the difference with embodiment one is, increases oil storage knot on 7 surface of floating bushing
Structure, is equipped with transition segmental arc 7.3 between the periphery 7.1 of floating bushing 7 and the anchor ring 7.2 of two sides, oil-bearing structure is in transition segmental arc
The 7.3 setting equally distributed helical form cambered surface grooves 7.8 of certain amount, i.e. groove are from periphery 7.1 to the path of anchor ring 7.2
Spiral helicine curve.Helical form cambered surface groove 7.8 can uniformly be equally spaced, and can also have the combination point of certain rule with other
Cloth.
It should be noted that the oil-bearing structure in other embodiments can choose a variety of progress based on embodiment one
It is applied in combination, for example, the axial notch 7.4 of embodiment two and the pit 7.6 of example IV are combined, the circumferential direction of embodiment three
Annular groove 7.5 and the cambered surface groove 7.7 of embodiment six are combined.In addition, the oil-bearing structure in embodiment can carry out it is certain
It expands, such as the cambered surface groove 7.7 and seven helical form cambered surface groove 7.8 of embodiment of embodiment six can extend to periphery 7.1
A certain distance.
Above is only a specific embodiment of the present invention, but structure feature of the invention is not limited thereto, the present invention
It can be used on similar product, within the field of the present invention, made changes or modifications are all by any those skilled in the art
Cover within the scope of the patent of the present invention.
Claims (10)
1. a kind of roller rock arm with oil storage function is mounted between tappet (1), cam (2) and valve (3), including rocker stand
(4) and bearing external member, rocker stand (4) include two side walls (4.1) and the bottom plate with loading end (4.2), ball-and-socket (4.3), are held
There are pilot hole (4.4) between section (4.2) and ball-and-socket (4.3), be located on the side wall (4.1) at pilot hole (4.4) and offer
The bulb of pin shaft hole (4.5), tappet (1) is connect with ball-and-socket (4.3) by bulb card, and valve (3) and loading end (4.2) are slided
It offsets, cam (3) offsets with the rolling of bearing external member, it is characterised in that: the bearing external member includes pin shaft (5), idler wheel outer ring (6)
With floating bushing (7), floating bushing (7) be located between pin shaft (5) and idler wheel outer ring (6) and respectively with the two sliding contact, floating bushing
(7) surface is equipped with oil-bearing structure.
2. a kind of roller rock arm with oil storage function according to claim 1, it is characterised in that: the pilot hole (4.4)
Side wall (4.1) is provided with the contraction section (4.6) inwardly squeezed at the two of one or both ends.
3. a kind of roller rock arm with oil storage function according to claim 2, it is characterised in that: the pilot hole (4.4)
The spacing L1 for locating two side walls (4.1) is greater than the width L2 of floating bushing (7), and the width L2 of floating bushing (7) is significantly greater than two receipts
The spacing L3 of contracting section (4.6), the spacing L3 of two contraction sections (4.6) are greater than the width L4 of idler wheel outer ring (6).
4. a kind of roller rock arm with oil storage function according to claim 1, it is characterised in that: the floating bushing (7)
Oil-bearing structure is that the axial notch (7.4) that certain amount runs through periphery (7.1) is arranged in the periphery (7.1) in floating bushing (7).
5. a kind of roller rock arm with oil storage function according to claim 1, it is characterised in that: the floating bushing (7)
Oil-bearing structure is that at least one circumferential groove in its end portion (7.5) are arranged in the periphery (7.1) in floating bushing (7).
6. a kind of roller rock arm with oil storage function according to claim 1, it is characterised in that: the floating bushing (7)
Oil-bearing structure is that a certain number of pits (7.6) are arranged in the periphery (7.1) in floating bushing (7).
7. a kind of roller rock arm with oil storage function according to claim 1, it is characterised in that: the floating bushing (7)
Transition segmental arc (7.3) are equipped between periphery (7.1) and the anchor ring (7.2) of two sides, oil-bearing structure is to set in transition segmental arc (7.3)
Set a certain number of cambered surface grooves (7.7).
8. a kind of roller rock arm with oil storage function according to claim 1, it is characterised in that: the floating bushing (7)
Transition segmental arc (7.3) are equipped between periphery (7.1) and the anchor ring (7.2) of two sides, oil-bearing structure is to set in transition segmental arc (7.3)
Set a certain number of helical form cambered surface grooves (7.8).
9. a kind of roller rock arm with oil storage function according to claim 1, it is characterised in that: the floating bushing (7)
Oil-bearing structure is the short groove (7.9) that the periphery (7.1) in floating bushing (7) is arranged that certain amount is in circumferential array distribution.
10. a kind of roller rock arm with oil storage function according to claim 9, it is characterised in that: the short groove (7.9)
The oil storage band quantity that circumferential array is formed is to be at least one, and the direction of short groove (7.9) is axial or inclined angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910610957.0A CN110206608A (en) | 2019-07-08 | 2019-07-08 | A kind of roller rock arm with oil storage function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910610957.0A CN110206608A (en) | 2019-07-08 | 2019-07-08 | A kind of roller rock arm with oil storage function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110206608A true CN110206608A (en) | 2019-09-06 |
Family
ID=67796719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910610957.0A Pending CN110206608A (en) | 2019-07-08 | 2019-07-08 | A kind of roller rock arm with oil storage function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110206608A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112814756A (en) * | 2019-11-15 | 2021-05-18 | 舍弗勒技术股份两合公司 | Valve rocker |
| CN116415462A (en) * | 2023-04-14 | 2023-07-11 | 哈尔滨工程大学 | Double-layer oil film lubrication analysis method and system based on floating bushing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032267A (en) * | 2010-12-31 | 2011-04-27 | 西南石油大学 | Sliding bearing of spiral floating bushing |
| CN204476275U (en) * | 2015-03-16 | 2015-07-15 | 西南石油大学 | A kind of novel cellular type elastic floating sleeve sliding bearing |
| CN206988293U (en) * | 2017-07-19 | 2018-02-09 | 瑞安市天禄精密机械有限公司 | A kind of full floating bearing |
| CN109779712A (en) * | 2018-12-28 | 2019-05-21 | 杭州新坐标科技股份有限公司 | Roller rock arm |
| CN210118180U (en) * | 2019-07-08 | 2020-02-28 | 杭州新坐标科技股份有限公司 | Roller rocker arm with oil storage function |
-
2019
- 2019-07-08 CN CN201910610957.0A patent/CN110206608A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032267A (en) * | 2010-12-31 | 2011-04-27 | 西南石油大学 | Sliding bearing of spiral floating bushing |
| CN204476275U (en) * | 2015-03-16 | 2015-07-15 | 西南石油大学 | A kind of novel cellular type elastic floating sleeve sliding bearing |
| CN206988293U (en) * | 2017-07-19 | 2018-02-09 | 瑞安市天禄精密机械有限公司 | A kind of full floating bearing |
| CN109779712A (en) * | 2018-12-28 | 2019-05-21 | 杭州新坐标科技股份有限公司 | Roller rock arm |
| CN210118180U (en) * | 2019-07-08 | 2020-02-28 | 杭州新坐标科技股份有限公司 | Roller rocker arm with oil storage function |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112814756A (en) * | 2019-11-15 | 2021-05-18 | 舍弗勒技术股份两合公司 | Valve rocker |
| CN116415462A (en) * | 2023-04-14 | 2023-07-11 | 哈尔滨工程大学 | Double-layer oil film lubrication analysis method and system based on floating bushing |
| CN116415462B (en) * | 2023-04-14 | 2023-11-17 | 哈尔滨工程大学 | Double-layer oil film lubrication analysis method and system based on floating bushing |
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