CN103234017A - Gear box clutch - Google Patents
Gear box clutch Download PDFInfo
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- CN103234017A CN103234017A CN2013101593387A CN201310159338A CN103234017A CN 103234017 A CN103234017 A CN 103234017A CN 2013101593387 A CN2013101593387 A CN 2013101593387A CN 201310159338 A CN201310159338 A CN 201310159338A CN 103234017 A CN103234017 A CN 103234017A
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- oil
- transmission shaft
- gear
- clutch
- work
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- 239000003921 oil Substances 0.000 claims abstract description 188
- 230000005540 biological transmission Effects 0.000 claims abstract description 55
- 239000010687 lubricating oil Substances 0.000 claims abstract description 25
- 239000004519 grease Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000000314 lubricant Substances 0.000 description 14
- 239000000446 fuel Substances 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The invention discloses a gear box clutch which comprises a transmission shaft, an end cover located at one end of the transmission shaft and a friction clutch and a piston which are sleeved on the transmission shaft. A lubricating oil channel connected onto the friction clutch and an operating oil channel connected onto the piston are arranged on the transmission shaft. The gear box clutch further comprises an oil supply ring sleeved at the end of the transmission shaft and in clearance sealing with the transmission shaft. The oil supply ring and the end cover are positioned through a positioning pin and are sealed through a rubber seal ring. An operating oil inlet connected with the operating oil channel and a lubricating oil inlet connected with the lubricating oil channel are arranged in the radial direction of the end cover. The gear box clutch ensures stable and sufficient supply of lubricating oil and operating oil which are used by the clutch, is small in oil pressure fluctuation and improves work reliability; and has the advantages of being simple in structure, convenient to assemble and maintain, strong in adaptability, low in production and use cost and the like.
Description
Technical field
The present invention relates to the Clutch Technology field, more particularly, relate to a kind of gear-box clutch.
Background technique
In the prior art, major part takes away the marine gearbox clutch that closes function needs supplying lubricating oil and work oil simultaneously, the normal oil supply structure that adopts mainly contains following two kinds: a kind of is at the two ends of axle difference fuel feeding, one end is for lubricant oil, the other end is for work oil, if axle head is equipped with connecting flange or other part, just can not adopt this oil supply structure, gear box structure is restricted; The same end of another kind of i.e. axle adopts the oil supply structure that axially adds radially, axially supplies lubricant oil, radially supplies work oil.To describe in detail at a kind of gear-box clutch feed structure of the prior art below.
Please refer to Fig. 1, Fig. 1 is a kind of gear-box clutch feed structural representation of the prior art.
A kind of clutch feed structure of the prior art, namely the same end at transmission shaft 13 adopts the oil supply structure that axially adds radially, utilizes exterior line joint 17 and exterior line joint 20 to supply with clutch work oil and lubricant oil respectively.Clutch comprises transmission shaft 13 and the fuel feeding end cap 23 that is fitted to each other, and transmission shaft 13 axially is provided with oil leab 14 and work oil duct 15.Transmission shaft radially is provided with work oil inlet 21, work oil export 16, lubricating oil outlet 12.Wherein, lubricating oil outlet 12 is communicated with oil leab 14; Work oil inlet 21, work oil export 16 all are communicated with work oil duct 15.Transmission shaft 13 end cylindricals have two seals first annular groove, and combined sealing ring 18 is housed in first annular groove, simultaneously, have one oil-collecting, first annular groove 22 in the middle of two seals first annular groove.Transmission shaft 13 end faces are equipped with plug 19 and are used for seal operation oil duct 15.
When gear-box is in when running in state, transmission shaft 13 rotates, combined sealing ring 18 forms motive sealing at transmission shaft 13 and 23 of fuel feeding end caps, clutch work oil joint 17, oil-collecting first annular groove 22, work oil inlet 21, work oil duct 15, work oil export 16 by the road enters piston 24, and promote piston 24 motions, thereby make the friction pair work of friction clutch 11.Simultaneously, lubricant oil joint 20, oil leab 14, lubricating oil outlet 12 by the road arrives friction clutch 11 lubricating point everywhere, the heat that produces when taking away friction clutch 11 work.
Yet, this oil supply structure need increase gear-box axial length and the required combined sealing ring of radial seal in the prior art, make weight and the boundary dimension of gear-box strengthen, structure is not compact, increase the installing space in cabin, Economy is lower, has improved manufacturing cost and use cost greatly, is subjected to certain restriction in the application.
Therefore, weight and the boundary dimension that how to solve the gear-box that existing gear-box clutch feed structure causes strengthens, structure is not compact, the cabin installing space is big, manufacture cost is high and the problem of later maintenance maintenance inconvenience, becomes those skilled in the art's important technological problems to be solved.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of gear-box clutch, with weight and the boundary dimension that solves the gear-box that existing gear-box clutch feed structure causes strengthen, structure is not compact, the cabin installing space is big, manufacture cost is high and the problem of later maintenance maintenance inconvenience.
For achieving the above object, the invention provides following technological scheme:
A kind of gear-box clutch, comprise transmission shaft, be positioned at the end cap of described transmission shaft one end and be sheathed on friction clutch and piston on the described transmission shaft, offer the grease channel that leads to described friction clutch on the described transmission shaft, with the work oil passage that leads to described piston, also comprise the end that is sheathed on described transmission shaft, and with the gap sealed supply ring of described transmission shaft;
Described supply ring is located by locating stud and described end cap, and seals by rubber seal with described end cap;
Described end cap radially offer work oil inlet with described work oil channel connection and the lubricating oil inlet that is communicated with described grease channel.
Preferably, in said gear case clutch, described grease channel comprises:
Axial arranged oil leab along described transmission shaft;
The oil leab outlet that is communicated with described oil leab and described friction clutch respectively;
The oil leab entrance that is communicated with described oil leab and described lubricating oil inlet respectively.
Preferably, in said gear case clutch, described oil leab outlet is all vertical with described oil leab with described oil leab entrance.
Preferably, in said gear case clutch, described work oil passage comprises:
Axial arranged work oil duct along described transmission shaft;
The work oil duct outlet that is communicated with described work oil duct and described piston respectively;
The work oil duct entrance that is communicated with described work oil duct and described work oil inlet respectively.
Preferably, in said gear case clutch, described work oil duct outlet is all vertical with described work oil duct with described work oil duct entrance.
Preferably, in said gear case clutch, offer on the described supply ring and connect its radially two radially oil inlet holes, an end of two described radially oil inlet holes is communicated with described work oil inlet and described lubricating oil inlet respectively;
The inner ring of described supply ring offers two first annular grooves that are communicated with two described radially oil inlet holes respectively, and described first annular groove of twice is communicated with described oil leab entrance and described work oil duct entrance respectively.
Preferably, in said gear case clutch, the inwall of described end cap offers twice second annular groove, and one of them described second annular groove is communicated with described lubricating oil inlet and one of them described radially oil inlet hole respectively;
Another described second annular groove is communicated with described work oil inlet and another described radially oil inlet hole respectively.
Preferably, in said gear case clutch, described rubber seal is three, and is separated by two described second annular grooves.
Preferably, in said gear case clutch, offer the spill port of the casing that is communicated with cavity that described end cap and described transmission shaft surround and gear-box on the described end cap.
Preferably, in said gear case clutch, described rubber seal is O type rubber seal.
From above-mentioned technological scheme as can be seen, gear-box clutch provided by the invention, lubricant oil and work oil all adopt radially fuel feeding, and lubricant oil enters through oil leab and needs lubricated moving element place, and work oil enters in the clutch cavity volume through the work oil duct.Oil supply structure of the present invention only needs the end oil-feed from transmission shaft, is not subjected to structure influence, does not also need to increase length and the required combined sealing ring of radial seal of axle simultaneously.The present invention has guaranteed that clutch is fully stable with lubricant oil and the oily fuel feeding of work, and pressure fluctuation is little, has improved the reliability of gear-box clutch work.Advantages such as in addition, the present invention also has simple in structure, and I﹠ M is convenient, and applicability is strong, manufacturing cost and use cost is low.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of gear-box clutch of the prior art;
The structural representation of the gear-box clutch that Fig. 2 provides for the embodiment of the invention;
Fig. 3 is that Fig. 2 is along the sectional view of A-A line.
Embodiment
Core of the present invention is to provide a kind of gear-box clutch, with weight and the boundary dimension that solves the gear-box that existing gear-box clutch feed structure causes strengthen, structure is not compact, the cabin installing space is big, manufacture cost is high and the problem of later maintenance maintenance inconvenience.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technological scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiments.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment who obtains under the creative work prerequisite.
See also Fig. 2 and Fig. 3, the structural representation of the gear-box clutch that Fig. 2 provides for the embodiment of the invention; Fig. 3 is that Fig. 2 is along the sectional view of A-A line.
The gear-box clutch that the embodiment of the invention provides applicable to the marine gearbox friction clutch, comprises transmission shaft 33, end cap, friction clutch 31, piston and supply ring 38.
Wherein, end cap is positioned at an end of transmission shaft 33, and the position of this end cap in the gear-box clutch is identical with existing conventional gearbox clutch, and emphasis of the present invention does not lie in this, and this paper repeats no more its particular location.
Friction clutch 31 and piston sleeve are located on the transmission shaft 33, the joint that comes actuating friction clutch 31 by piston along the movement of transmission shaft 33 with separate.
Offer the grease channel that leads to friction clutch 31 on the transmission shaft 33, the lubricant oil that feeds by this grease channel cools off and lubricates friction clutch 31.Also offer the work oil passage that leads to piston on the transmission shaft 33, the work oil that feeds by this work oil passage drives piston, thereby realizes friction clutch 31 is operated.
Supply ring 38 is sheathed on the end of transmission shaft 33, and with transmission shaft 33 clearance seals, clearance seal is to utilize the micro-gap between the movement parts to seal, and is the simplest a kind of seal form, its sealing effect depends on size and pressure difference, seal length and the surface quality of workpieces in gap.
Supply ring 38 is by locating stud and end cap location, and particularly, end cap and supply ring 38 are Spielpassung each other, and joins and bore a hole, adopts straight pin 49 and 48 pairs of supply rings of sealing plug screw 38 to carry out spacing.Supply ring 38 seals by rubber seal 44 with end cap.
End cap radially offer work oil inlet 50 with the oily channel connection of working and the lubricating oil inlet 46 that is communicated with grease channel.Wherein, lubricating oil inlet 46 can be communicated with the box house oil leab 47 of gear-box clutch, and work oil inlet 50 is communicated with outside fuel-intake connection 51.
When gear-box is in when running in state, transmission shaft 33 rotates, 38 of transmission shaft 33 and supply rings form motive sealing, clutch work oil enters piston through outside fuel-intake connection 51, work oil inlet 50, the oily passage of work, and promote the piston motion, thereby make the friction pair work of friction clutch 31.Simultaneously, lubricant oil arrives friction clutch 31 lubricating point everywhere through box house oil leab 47, lubricating oil inlet 46, grease channel, the heat that produces when taking away friction clutch 31 work.
Gear-box clutch provided by the invention, lubricant oil and work oil all adopt radially fuel feeding, and lubricant oil enters through oil leab and needs lubricated moving element place, and work oil enters in the clutch cavity volume through the work oil duct.Oil supply structure of the present invention only needs the end oil-feed from transmission shaft, is not subjected to structure influence, does not also need to increase length and the required combined sealing ring of radial seal of axle simultaneously.The present invention has guaranteed that clutch is fully stable with lubricant oil and the oily fuel feeding of work, and pressure fluctuation is little, has improved the reliability of gear-box clutch work.Advantages such as in addition, the present invention also has simple in structure, and I﹠ M is convenient, and applicability is strong, manufacturing cost and use cost is low.
In the present invention's one specific embodiment, grease channel comprises oil leab 34, oil leab outlet 32 and oil leab entrance 41.
Wherein, oil leab 34 is axial arranged along transmission shaft 33, with oil leab 34 be arranged as along transmission shaft 33 axially, can conveniently get out this oil leab 34.Oil leab outlet 32 is communicated with oil leab 34 and friction clutch 31 respectively, and oil leab entrance 41 is communicated with oil leab 34 and lubricating oil inlet 46 respectively.The present invention is designed to 3 stops with grease channel and arranges, is conducive to the boring of oil duct, convenient processing.
Further, oil leab outlet 32 is all vertical with oil leab 34 with oil leab entrance 41.When boring oil leab outlet 32 and oil leab entrance 41, because of oil leab outlet 32 all vertical with oil leab 34 with oil leab entrance 41, therefore make transmission shaft 33 easier clampings, correspondingly, oil leab outlet 32 and also easier processing of oil leab entrance 41.
In the present invention's one specific embodiment, the oily passage of working comprises work oil duct 35, work oil duct outlet 36 and work oil duct entrance 53.
Wherein, work oil duct 35 axial arranged along transmission shaft 33, with work oil duct 35 be arranged as along transmission shaft 33 axially, can conveniently get out this work oil duct 35.Work oil duct outlet 36 is communicated with work oil duct 35 and piston respectively, and work oil duct entrance 53 is communicated with work oil duct 35 and work oil inlet 50 respectively.The present invention's oily channels designs of will working is that 3 stops is arranged, is conducive to the boring of oil duct, convenient processing.
The end face of transmission shaft 33 is equipped with plug 40 and plug 39 difference seal lubrication oil duct 34 and work oil ducts 35.
Further, work oil duct outlet 36 is all vertical with work oil duct 35 with work oil duct entrance 53.When driller makes oil duct outlet 36 and work oil duct entrance 53, because of work oil duct outlet 36 and work oil duct entrance 53 all vertical with the oil duct 35 of working, therefore make transmission shaft 33 easier clampings, correspondingly, work oil duct outlet 36 and the 53 also easier processing of work oil duct entrance.
In order further to optimize technique scheme, in the present invention's one specific embodiment, offer on the supply ring 38 connect its radially two radially 52, two of oil inlet holes radially an end of oil inlet hole 52 be communicated with work oil inlet 50 and lubricating oil inlet 46 respectively.
The inner ring of supply ring 38 offer two respectively with two first annular grooves 42 of being communicated with of oil inlet hole 52 radially, twice first annular groove 42 is communicated with oil leab entrance 41 and work oil duct entrance 53 respectively.
Enter two radially oil inlet hole 52 oil (work oil and lubricant oil) by work oil inlet 50 and lubricating oil inlet 46, can flow into respectively in first annular groove 42 corresponding with it, flow into work oil duct entrance 53 and oil leab entrance 41 then respectively.The present invention makes that by the design of first annular groove is set the arbitrary position in transmission shaft 33 rotation processes all can be realized and work oil inlet 50 and work oil duct entrance 53, and the connection of lubricating oil inlet 46 and oil leab entrance 41.The setting of first annular groove 42 has improved reliability of the present invention.
Further, the inwall of end cap offers twice second annular groove 37, one of them second annular groove respectively with lubricating oil inlet 46 and one of them radially oil inlet hole is communicated with, another second annular groove respectively with work oil inlet 50 with another radially oil inlet hole be communicated with.In the present embodiment, rubber seal 44 is three, and is separated by two second annular grooves 37, and namely the both sides of each second annular groove 37 all have rubber seal 44.Preferably, rubber seal 44 is O type rubber seal.
In order further to optimize technique scheme, offer on the end cap of the present invention the spill port 54 of the casing that is communicated with cavity that end cap and transmission shaft 33 surround and gear-box.
Even there is small leakage pressure oil in supply ring 38 with transmission shaft 33 gap locations, also can under the gravity effect, get back in the casing rapidly through spill port 54, can avoid " vexed oil " phenomenon, guaranteed that clutch is fully stable with lubricant oil and the oily fuel feeding of work, pressure fluctuation is little, has improved the reliability of gear-box clutch work.
In the present embodiment, end cap can be formed by fixedly oil-feed end cap 45 and end cover 43 that screw connects, is two-part assembly structure with end cover designs, makes the present invention more easy for removal and installation.Wherein, fixedly oil-feed end cap 45 is sheathed on the transmission shaft 33, and spill port 54 and lubricating oil inlet 46 all are opened in fixedly on the oil-feed end cap 45.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed is and other embodiments' difference that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the present invention.Multiple modification to these embodiments will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments herein.Therefore, the present invention will can not be restricted to these embodiments shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. gear-box clutch, comprise transmission shaft (33), be positioned at the end cap of described transmission shaft (33) one ends and be sheathed on friction clutch (31) and piston on the described transmission shaft (33), described transmission shaft offers the grease channel that leads to described friction clutch (31) on (33), with the work oil passage that leads to described piston, it is characterized in that, also comprise the end that is sheathed on described transmission shaft (33), and with the gap sealed supply ring of described transmission shaft (33) (38);
Described supply ring (38) is located by locating stud and described end cap, and seals by rubber seal (44) with described end cap;
Described end cap radially offer work oil inlet (50) with described work oil channel connection and the lubricating oil inlet (46) that is communicated with described grease channel.
2. gear-box clutch as claimed in claim 1 is characterized in that, described grease channel comprises:
Axial arranged oil leab (34) along described transmission shaft (33);
The oil leab outlet (32) that is communicated with described oil leab (34) and described friction clutch (31) respectively;
The oil leab entrance (41) that is communicated with described oil leab (34) and described lubricating oil inlet (46) respectively.
3. gear-box clutch as claimed in claim 2 is characterized in that, described oil leab outlet (32) is all vertical with described oil leab (34) with described oil leab entrance (41).
4. gear-box clutch as claimed in claim 2 is characterized in that, described work oil passage comprises:
Axial arranged work oil duct (35) along described transmission shaft (33);
The work oil duct outlet (36) that is communicated with described work oil duct (35) and described piston respectively;
The work oil duct entrance (53) that is communicated with described work oil duct (35) and described work oil inlet (50) respectively.
5. gear-box clutch as claimed in claim 4 is characterized in that, described work oil duct outlet (36) is all vertical with described work oil duct (35) with described work oil duct entrance (53).
6. gear-box clutch as claimed in claim 4, it is characterized in that, offer on the described supply ring (38) and connect its radially two radially oil inlet holes (52), an end of two described radially oil inlet holes (52) is communicated with described work oil inlet (50) and described lubricating oil inlet (46) respectively;
The inner ring of described supply ring (38) offers two first annular grooves (42) that are communicated with two described radially oil inlet holes (52) respectively, and described first annular grooves of twice (42) are communicated with described oil leab entrance (41) and described work oil duct entrance (53) respectively.
7. gear-box clutch as claimed in claim 6 is characterized in that, the inwall of described end cap offers twice second annular groove (37), and one of them described second annular groove is communicated with described lubricating oil inlet (46) and one of them described radially oil inlet hole respectively;
Another described second annular groove is communicated with described work oil inlet (50) and another described radially oil inlet hole respectively.
8. gear-box clutch as claimed in claim 7 is characterized in that, described rubber seal (44) is three, and is separated by two described second annular grooves (37).
9. as each described gear-box clutch of claim 1-8, it is characterized in that, offer the spill port (54) of the casing that is communicated with cavity that described end cap and described transmission shaft (33) surround and gear-box on the described end cap.
10. as each described gear-box clutch of claim 1-8, it is characterized in that described rubber seal (44) is O type rubber seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310159338.7A CN103234017B (en) | 2013-05-02 | 2013-05-02 | A kind of gear box clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310159338.7A CN103234017B (en) | 2013-05-02 | 2013-05-02 | A kind of gear box clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103234017A true CN103234017A (en) | 2013-08-07 |
| CN103234017B CN103234017B (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310159338.7A Active CN103234017B (en) | 2013-05-02 | 2013-05-02 | A kind of gear box clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103234017B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420530A (en) * | 2017-09-27 | 2017-12-01 | 南京创力传动机械有限公司 | High power gearbox and severe duty drive |
| CN108019487A (en) * | 2017-12-25 | 2018-05-11 | 香河皓达机器人谐波减速器制造有限公司 | The harmonic speed reducer of rigid wheel with the U-shaped tooth of bicircular arcs |
| CN109269305A (en) * | 2018-09-20 | 2019-01-25 | 中钢集团西安重机有限公司 | A kind of mineral hot furnace is widened the view the self-lubricating pneumatic vibrator mechanism of machine |
| CN111051740A (en) * | 2017-07-05 | 2020-04-21 | 邦奇动力有限责任公司 | Lubricating and/or cooling device for a continuously variable transmission system and continuously variable transmission system comprising such a lubricating and/or cooling device |
| CN112696487A (en) * | 2020-12-25 | 2021-04-23 | 中国船舶重工集团公司第七0三研究所 | Friction plate clutch oil supply device of double-speed gear box transmission error test bed |
| CN113483088A (en) * | 2021-07-22 | 2021-10-08 | 中国船舶重工集团公司第七0三研究所 | Marine gear box friction clutch input shaft assembly with oil supply device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111051740A (en) * | 2017-07-05 | 2020-04-21 | 邦奇动力有限责任公司 | Lubricating and/or cooling device for a continuously variable transmission system and continuously variable transmission system comprising such a lubricating and/or cooling device |
| CN111051740B (en) * | 2017-07-05 | 2024-03-01 | 南京邦奇自动变速箱有限公司 | Lubrication and/or cooling device and continuously variable transmission system comprising such a device |
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| CN109269305A (en) * | 2018-09-20 | 2019-01-25 | 中钢集团西安重机有限公司 | A kind of mineral hot furnace is widened the view the self-lubricating pneumatic vibrator mechanism of machine |
| CN112696487A (en) * | 2020-12-25 | 2021-04-23 | 中国船舶重工集团公司第七0三研究所 | Friction plate clutch oil supply device of double-speed gear box transmission error test bed |
| CN112696487B (en) * | 2020-12-25 | 2023-03-07 | 中国船舶重工集团公司第七0三研究所 | Friction plate clutch oil supply device of double-speed gear box transmission error test bed |
| CN113483088A (en) * | 2021-07-22 | 2021-10-08 | 中国船舶重工集团公司第七0三研究所 | Marine gear box friction clutch input shaft assembly with oil supply device |
| CN113483088B (en) * | 2021-07-22 | 2022-06-14 | 中国船舶重工集团公司第七0三研究所 | Marine gear box friction clutch input shaft assembly with oil supply device |
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| CN103234017B (en) | 2015-11-18 |
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