CN113483088B - Marine gear box friction clutch input shaft assembly with oil supply device - Google Patents

Marine gear box friction clutch input shaft assembly with oil supply device Download PDF

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Publication number
CN113483088B
CN113483088B CN202110831848.9A CN202110831848A CN113483088B CN 113483088 B CN113483088 B CN 113483088B CN 202110831848 A CN202110831848 A CN 202110831848A CN 113483088 B CN113483088 B CN 113483088B
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China
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oil
oil supply
ring
hole
groove
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CN202110831848.9A
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Chinese (zh)
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CN113483088A (en
Inventor
闫泽
曲盛楠
戴维泽
战庆欣
王春玲
魏君波
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703th Research Institute of CSIC
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703th Research Institute of CSIC
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Publication of CN113483088A publication Critical patent/CN113483088A/en
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    • 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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0467—Elements of gearings to be lubricated, cooled or heated
    • F16H57/0473—Friction devices, e.g. clutches or brakes
    • 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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • 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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • 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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
    • 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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/042—Guidance of lubricant
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3268—Mounting of sealing rings
    • 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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • F16H57/022—Adjustment of gear shafts or bearings
    • F16H2057/0221—Axial adjustment

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

The invention provides an input shaft assembly of a marine gearbox friction clutch with an oil supply device, which is formed by sequentially connecting a pressure plate, a positioning plate, an input flange, an input shaft, a tapered roller bearing, a shell, a supporting plate, an oil supply sliding ring, an oil way joint, a limiting sleeve, an oil seal assembly, an oil supply pipe and the like. The hollow input shaft is supported on the shell and the supporting plate through two back-to-back tapered roller bearings, the oil supply slip ring limited by the shell is positioned between the two tapered roller bearings, and the oil supply slip ring and the input shaft form rotary seal. The oil circuit joint is positioned in the central hole of the input shaft, and the part of the oil circuit joint, which protrudes out of the input shaft, is provided with a rotary sealing ring to form rotary sealing with the inner shaft of the friction clutch. The radial hole at the matching part of the input shaft and the oil supply sliding ring is communicated with the oil way joint and the oil duct of the oil supply sliding ring. The oil supply pipe is arranged on the shell, and the radial hole of the shell is communicated with the oil ducts of the oil supply pipe and the oil supply sliding ring. The invention realizes the combined function of power transmission and radial oil supply and has compact structure.

Description

Marine gear box friction clutch input shaft assembly with oil supply device
Technical Field
The invention relates to an input shaft assembly of a marine gearbox friction clutch with an oil supply device, in particular to an input shaft assembly which can supply lubricating oil and working oil to a friction clutch while realizing power transmission.
Background
The marine gearbox with wet friction clutch needs to be provided with an oil supply device for supplying lubricating oil and working oil to the clutch, and the oil supply device is usually arranged at the free shaft end of the output part (rigidly connected with the pinion of the gearbox) of the clutch at present. When the output part of the clutch of the marine gearbox is directly connected with a rotating device with a long shafting such as a propeller shaft, the oil can not be supplied to the clutch by using the traditional free shaft oil supply device.
Disclosure of Invention
The invention aims to solve the problem of oil supply of a wet friction clutch in a special marine gearbox with a clutch output part directly connected with a propeller shaft.
The purpose of the invention is realized as follows:
an input shaft assembly of a marine gearbox friction clutch with an oil supply device is formed by sequentially connecting a pressing plate, a positioning plate, an input flange, an input shaft, a tapered roller bearing, a shell, a supporting plate, an oil supply sliding ring, an oil way joint, a limiting sleeve, an oil seal assembly, an oil supply pipe and the like, wherein the left end of the input shaft of a hollow flange shaft structure is an input shaft output flange, the right end of the input shaft is connected with the input flange, the input flange is positioned on the right end of the input shaft through the positioning plate and is axially fixed through the pressing plate, and the input shaft is supported on an upper half shell and a lower half shell of a circular column structure through a tapered roller bearing I and a tapered roller bearing II which are arranged back to back; the upper half shell and the upper half support plate, and the lower half shell and the lower half support plate are rigidly connected together through fasteners; the upper half supporting plate and the lower half supporting plate are rigidly connected to the gearbox shell through fasteners; the outer circle of the annular oil supply slip ring is positioned on the shell formed by the upper half shell and the lower half shell, and the inner annular surface of the oil supply slip ring is in clearance fit with the matching surface of the rotating slip ring of the input shaft; the lubricating oil supply pipe is rigidly fixed on the upper half shell, the working oil supply pipe I and the working oil supply pipe II are respectively and rigidly fixed on the lower half shell, lubricating oil is provided at the inlet of the lubricating oil supply pipe, and working oil with different pressures is provided at the inlets of the working oil supply pipe I and the working oil supply pipe II; the oil supply joint is arranged at the center of the left side of the input shaft, the oil supply joint protrudes out of one section of the input shaft and extends into the inner shaft of the clutch, and oil of the lubricating oil supply pipe, the working oil supply pipe I and the working oil supply pipe II finally enters the inner shaft of the clutch through the oil supply slip ring and the oil supply joint.
The input flange compresses an inner ring of the tapered roller bearing I, the bearing gap adjusting ring is positioned between the large end face of the outer ring of the tapered roller bearing I and the shell, and the axial gap between the tapered roller bearing I and the tapered roller bearing II can be changed by adjusting the thickness of the bearing gap adjusting ring, so that the support rigidity and the rotation precision of the input shaft are changed; the input shaft output flange is rigidly connected with the clutch input toothed ring through the torque transmission pin and the connecting bolt, and the input shaft can be transmitted to the clutch input toothed ring without loss.
Rotatory bearing seal, rotatory bearing seal baffle, rotatory bearing seal is installed in the hole of annular rotatory bearing seal support in proper order from left to right, rotatory bearing seal baffle is installed at rotatory bearing seal support right-hand member, block rotatory bearing seal, rotatory bearing seal baffle separates rotatory bearing seal and rotatory bearing seal, rotatory bearing seal support and first half casing and lower half casing rigid connection together, and keep same axle center, rotatory bearing seal support mounting is at the casing right-hand member, the rotatory bearing seal of the rubber skeleton oil blanket structure of back-to-back installation, the sealed lip of rotatory bearing seal forms rotary seal with the sealed face contact of the rotatory bearing seal of input flange, rotatory bearing seal lip opening left, seal internal pressure, can prevent that the lubricating oil that flows through tapered roller bearing I from revealing, rotatory bearing seal lip opening right, seal external pressure, can prevent the invasion of outside foreign matter.
The upper half shell is provided with an upper half shell oil return flow passage, so that oil drainage between the rotary sealing rings of the oil supply slip ring flows back to the shell of the gearbox; the lower half shell is provided with a lower half shell oil return flow channel, so that oil drainage at the right end of the oil supply slip ring and lubricating oil flowing through the tapered roller bearing I flow back to the gearbox shell; the oil drainage at the left end of the oil supply slip ring flows through the tapered roller bearing 2 and directly flows back to the gearbox shell.
The hollow stepped shaft structure oil supply joint sequentially consists of a dynamic sealing section, a transition section, a static sealing section and a positioning section from left to right, wherein a central plug is arranged at the central part of the static sealing section and seals the right end of the oil supply joint; the left end face of the positioning section is tightly close to the inner end face of the central hole of the input shaft, so that the oil supply connector is limited from moving left, and meanwhile, the right end face of the positioning section is propped against the small end face of the limiting sleeve; 4 anti-rotation grooves are formed in the right end face of the positioning section, and the small end face of the limiting sleeve is convexly inserted into the anti-rotation grooves to prevent the oil supply joint from rotating; through the spacing of locating section, the quiet seal section aligns with the input shaft in the width scope of the rotatory sliding ring fitting surface of input shaft.
The O-shaped sealing ring and groove on the static sealing section, the annular groove I of the static sealing section, the O-shaped sealing ring and groove, the annular groove II of the static sealing section, the O-shaped sealing ring and groove, and the annular groove III of the static sealing section are arranged in sequence from left to right, so that the mutual sealing of all oil ducts is ensured; in the upper half part of the longitudinal section of the oil supply joint, a transverse hole of an oil duct I is opened from the left end surface of the oil supply joint to the position below a static sealing section ring groove I, and a radial hole b of the oil duct I is communicated with the transverse hole of the static sealing section ring groove I and the oil duct I; the left end of a cross hole of the oil duct I is sealed by blocking the oil duct I to prevent leakage; the radial hole a of the oil duct I is communicated with the transverse hole of the oil duct I and the dynamic sealing section ring groove I, and the working oil I in the radial hole b of the oil duct I can be introduced into the dynamic sealing section ring groove I; in the lower half part of the longitudinal section of the oil supply joint, a transverse hole of the oil duct II is opened from the left end face of the oil supply joint to the position above a static sealing section ring groove II, and an oil duct II radial hole b is communicated with the static sealing section ring groove II and an oil duct II radial hole b to block the oil duct II so as to seal the left end of the oil duct II transverse hole and prevent leakage; the radial hole a of the oil duct II is communicated with the transverse hole of the oil duct II and the dynamic sealing section ring groove II, and the working oil II of the static sealing section ring groove II can be introduced into the dynamic sealing section ring groove II; the left end of a central hole of the oil supply joint is a lubricating oil transverse hole, the right end of the central hole of the oil supply joint is a thread, and a central plug is screwed and fixed through the thread; the lubricating oil radial hole is communicated with the static sealing section ring groove III and the lubricating oil transverse hole, an outlet of the lubricating oil transverse hole is communicated with a lubricating oil channel of the inner shaft of the clutch, and the lubricating oil of the static sealing section ring groove III can enter the lubricating oil channel of the inner shaft of the clutch.
The sealing ring, the oil drainage hole, the sealing ring, the dynamic sealing section annular groove I, the sealing ring, the oil drainage hole, the sealing ring, the dynamic sealing section annular groove II, the sealing ring and the oil drainage hole on the dynamic sealing section are sequentially arranged from left to right; an oil drainage cross hole is formed in the left end face of the oil supply connector, is a blind hole, is smaller in distribution diameter than the diameters of the bottoms of the dynamic sealing section ring grooves I and the dynamic sealing section ring grooves II, and is reserved with a safety distance; the three oil drainage holes are communicated together by the oil drainage cross hole, and the left channel of the oil drainage cross hole is blocked by the oil drainage cross hole; the oil drainage hole enables working oil leaked from the dynamic sealing section ring groove I or the dynamic sealing section ring groove II to be subjected to confluence drainage; the annular groove I of the dynamic sealing section is axially aligned with the working oil channel I of the inner shaft of the clutch, the annular groove II of the dynamic sealing section is axially aligned with the working oil channel II of the inner shaft of the clutch, and the two paths of working oil can respectively enter different flow passage positions inside the inner shaft of the clutch.
The outer ring surface of the annular oil supply sliding ring is sequentially provided with a brake pin mounting hole, an O-shaped sealing ring mounting groove, an oil supply sliding ring outer ring groove I, an O-shaped sealing ring mounting groove, an oil supply sliding ring outer ring groove III, an O-shaped sealing ring mounting groove, an oil supply sliding ring radial oil discharge hole, an O-shaped sealing ring mounting groove, an oil supply sliding ring outer ring groove II and an O-shaped sealing ring mounting groove from left to right; the annular oil supply sliding ring inner annular surface is provided with a rotary sealing ring mounting groove, an oil supply sliding ring inner annular groove I, a rotary sealing ring mounting groove, an oil supply sliding ring radial oil drainage hole, a rotary sealing ring mounting groove, an oil supply sliding ring inner annular groove III, a rotary sealing ring mounting groove, an oil supply sliding ring radial oil drainage hole, a rotary sealing ring mounting groove, an oil supply sliding ring inner annular groove II and a rotary sealing ring mounting groove in sequence from left to right.
The oil supply sliding ring outer ring groove I and the oil supply sliding ring inner ring groove I, the oil supply sliding ring outer ring groove III and the oil supply sliding ring inner ring groove III, and the groove width center lines of the oil supply sliding ring outer ring groove II and the oil supply sliding ring inner ring groove II are respectively aligned; the connecting through hole I is communicated with an outer ring groove I of the oil sliding ring and an inner ring groove of the oil supply sliding ring; the communicating hole II is communicated with an outer annular groove III of the oil supply slip ring and an inner annular groove III of the oil supply slip ring; the communicating hole III is communicated with an outer annular groove II of the oil supply slip ring and an inner annular groove II of the oil supply slip ring; installing an O-shaped sealing ring made of a proper material in the O-shaped sealing ring installation groove as required, and installing a rotary sealing ring made of a proper material and having a proper structure in the rotary sealing ring installation groove; the oil supply sliding ring radial oil drainage hole is communicated with all the oil supply sliding ring radial oil drainage holes; the oil supply sliding ring oil drainage cross hole is blocked, so that an inlet of the oil supply sliding ring oil drainage cross hole on the right positioning end face of the oil supply sliding ring is blocked, and lubricating oil or working oil leaked from the rotary sealing ring mounting groove flows to the oil supply sliding ring radial oil drainage hole through the oil supply sliding ring radial oil drainage hole, enters an upper half shell oil return flow passage and flows into the gearbox shell; the lubricating oil transverse hole of the oil supply sliding ring and the oil drainage transverse hole of the oil supply sliding ring are arranged in an axial symmetry mode, the lubricating oil transverse hole of the oil supply sliding ring is a through hole penetrating through the left end face and the right end face of the oil supply sliding ring, the lubricating oil spray plug II and the lubricating oil spray plug I are located at the left end and the right end of the lubricating oil transverse hole of the oil supply sliding ring, and the sliding ring lubricating oil radial oil supply hole is communicated with the lubricating oil transverse hole of the oil supply sliding ring and the outer annular groove III of the oil supply sliding ring.
The lower half supporting plate of the upper half supporting plate is connected together through fasteners such as a mid-section bolt pin, the upper half shell and the lower half shell are also connected together through fasteners such as a mid-section bolt pin, and meanwhile, the upper half shell and the lower half shell are connected together with the upper half supporting plate and the lower half supporting plate through bolts; after the split bolt and the pin are removed, the upper half support plate and the upper half shell can be integrally detached, and the lower half support plate and the lower half shell continue to keep a rigid connection relationship and can still provide positioning and supporting for the input shaft and the connecting parts thereof; the lubricating oil supply pipe is arranged right above the upper half shell; and the working oil supply pipe II and the working oil supply pipe I are arranged right below the lower half shell.
The clutch output is supported on the gearbox housing by bearings. The support plate is connected to the gearbox housing by fasteners. The shell and the supporting plate are rigidly connected together through a fastener. The hollow input shaft is supported on the housing by two tapered roller bearings which are back-to-back and have a certain mounting span.
The input end of the input shaft is connected with the input flange through a spline, and the output end of the input shaft is connected with the clutch flange through a fastening piece. The power of the main engine can be transmitted to the clutch through the input flange and the input shaft.
The oil supply slip ring limited by the shell is positioned between the two tapered roller bearings, and the oil supply slip ring and the input shaft form rotary seal. The oil circuit joint is positioned in the central hole of the input shaft, the part of the oil circuit joint, which protrudes out of the input shaft, is provided with a rotary sealing ring, and the rotary sealing ring on the oil circuit joint and the inner shaft of the friction clutch form rotary sealing. The radial hole at the matching part of the input shaft and the oil supply sliding ring is communicated with the oil way joint and the oil duct of the oil supply sliding ring. The oil supply pipe is arranged on the shell, the radial hole of the shell is communicated with oil ducts of the oil supply pipe and the oil supply sliding ring, and lubricating oil and working oil can enter the oil supply joint and an oil path inside the clutch through the oil supply pipe and the oil supply sliding ring.
Oil drainage holes are formed in two sides of an oil way ring groove of the oil supply sliding ring and the oil way joint, so that rotary sealed oil drainage can be led out of the input shaft assembly, and the lubricating oil way and the working oil way are prevented from being influenced mutually. The lubricating oil path on the oil supply slip ring is provided with an oil spray hole which can lubricate 2 tapered roller bearings, and the shell is provided with an oil return hole which can lead the lubricating oil of the tapered roller bearings to flow back to the gear box. The rotary shaft seal is arranged between the shell and the input flange shaft through the bracket, and a sealing lip of the rotary shaft seal and the excircle of the flange shaft form rotary sealing, so that the lubricating oil of the tapered roller bearing can be prevented from leaking.
The invention fully utilizes the space of low power density of the input shaft by arranging the oil supply slip ring between the two bearings and arranging the oil way joint at the inner diameter of the input shaft, realizes the combined function of power transmission and radial oil supply and has compact structure.
Compared with the prior art, the invention has the beneficial effects that:
the invention solves the problem of oil supply of the wet friction clutch in the special marine gearbox with the clutch output part directly connected with the propeller shaft, integrates the oil supply device on the input shaft part, provides stable lubricating oil and working oil for the clutch while the input shaft transmits the power of a main engine, and has compact structure.
Drawings
FIG. 1 is a longitudinal cross-sectional view of the present invention;
FIG. 2 is a longitudinal cross-sectional view of the present invention with a housing portion removed;
FIG. 3 is a longitudinal cross-sectional view of the present invention with portions of the housing and input flange removed;
FIG. 4 is a longitudinal cross-sectional view of the input flange;
FIG. 5 is a longitudinal sectional view of the oil passage joint;
FIG. 6 is an enlarged view of a portion of FIG. 5;
FIG. 7 is an upper half of a longitudinal cross-sectional view of an oil feed slide ring;
FIG. 8 is a lower half of a longitudinal cross-sectional view of an oil feed slide ring;
fig. 9 is an appearance diagram of the patent of the invention with three-dimensional visual angle.
In the figure, 20, a positioning plate, 30, a pressure plate, 50, a limiting sleeve, 52, a large end surface of the limiting sleeve, 54, a small end surface of the limiting sleeve, 60, a limiting screw, 70, a rotary shaft seal bracket, 80, a rotary shaft seal baffle, 90, a rotary shaft seal partition, 92.94, a rotary shaft seal, 100, an input flange, 110, a flange body, 112, a positioning hole I, 114, a positioning end surface, 116, a flange torque transmission hole, 120, an input flange internal spline, 130, a positioning hole II, 140, an O-shaped sealing ring installation groove, 150, an input flange rotary shaft seal sealing surface, 160, an input flange positioning surface, 200, an input shaft, 210, a conical roller bearing I, 212, an input shaft bearing installation surface I, 220, a conical roller bearing II, 222, an input shaft bearing installation surface II, 224, an input shaft bearing positioning surface, 230, an input shaft output flange, 240, an input shaft spline, 242, a positioning surface II, 244, 246. the oil way I blocking hole, 323 the oil way I radial hole a, 324 the oil way I radial hole b, 325 the oil way II radial hole b, 326 the oil way II blocking hole, 327 the oil way II radial hole a, 328 the oil way II radial hole b, 329 the lubricating oil radial hole 330 the static sealing section, 331 the static sealing section ring groove I, 332 the static sealing section ring groove III, 333 the static sealing section ring groove II, 334 the O-shaped sealing ring and groove, 335 the lubricating oil transverse hole, 336 the thread, 340 the positioning section, 342 the end face, 344, the anti-rotation groove, 350 the central plug, 400 the upper half shell, 410. an upper half support plate, 420, a bearing clearance adjusting ring, 430, a lower half shell oil return flow passage, 440, an upper half shell oil return flow passage, 450, a lower half shell, 460, a lower half support plate, 500, a working oil supply pipe I, 600, a working oil supply pipe II, 700, a lubricating oil supply pipe, 800, an oil supply slip ring, 810, an outer ring surface, 812, an oil supply slip ring outer ring groove II, 813, an O-shaped seal ring mounting groove, 814, an oil supply slip ring outer ring groove III, 816, an oil supply slip ring outer ring groove I, 820, an inner ring surface, 822, an oil supply slip ring inner ring groove II, 823, a rotary seal ring, 824, an oil supply slip ring inner ring groove III, 826, an oil supply slip ring inner ring groove I, 830, an oil supply slip ring left positioning end surface, 840, an oil supply slip ring front positioning end surface, 842, an oil supply slip ring transverse hole, 844, an oil supply slip ring oil drain transverse hole plug, 846, an oil supply slip ring radial oil drain hole, 848, an oil drain hole, 850. the clutch comprises a brake pin, 852, I and 854, II and 856, III and 862 lubricating oil spray plugs, I and 864, II and 866, transverse lubricating oil supply holes of a lubricating oil supply slip ring, 868, radial lubricating oil supply holes of the lubricating oil supply slip ring, 900, an input gear ring of a clutch, 910, a torque transmission pin, 920, a connecting bolt, 1000, an inner shaft of the clutch, 1010, an inner shaft working oil channel I of the clutch, 1020, II and 1030, lubricating oil channels of the inner shaft of the clutch and 1100, and a gearbox shell.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
In fig. 1, an input shaft output flange 230 is provided at the left end of an input shaft 200 of the hollow flange shaft structure, and an input flange 100 is connected to the right end of the input shaft 200. The input flange 100 is positioned on the right end of the input shaft 200 by a positioning plate 20 and is axially fixed by a pressure plate 30.
The input shaft 200 is supported on the upper half casing 400 and the lower half casing 450 of the circular cylindrical structure by the tapered roller bearings i 210 and ii 220 mounted back to back. The upper half-shell 400 and the upper half-support plate 410, and the lower half-shell 450 and the lower half-support plate 460 are rigidly connected together by fasteners. The upper and lower support plates 410, 460 are rigidly attached to the gearbox housing 1100 by fasteners.
The outer circle of the annular oil supply slip ring 800 is positioned on the shell formed by the upper half shell 400 and the lower half shell 450, and the inner annular surface 820 of the annular oil supply slip ring 800 is in clearance fit with the matching surface 260 of the input shaft rotating slip ring. The lubricant oil supply pipe 700 is rigidly fixed to the upper half casing 400, and the working oil supply pipe i 500 and the working oil supply pipe ii 600 are rigidly fixed to the lower half casing 450, respectively. The inlet of the lubricant supply pipe 700 supplies lubricant. The inlets of the working oil supply pipe I500 and the working oil supply pipe II 600 are respectively provided with working oil with different pressures.
The oil supply joint 300 is installed at a left center portion of the input shaft 200, and the oil supply joint 300 protrudes from a section of the input shaft 200 to be deep into the clutch inner shaft 1000. The oil in the lubricating oil supply pipe 700, the working oil supply pipe i 500, and the working oil supply pipe ii 600 finally enters the clutch inner shaft 1000 through the oil supply slip ring 800 and the oil supply joint 300.
The upper half shell 400 is provided with an upper half shell oil return flow passage 440, so that oil drainage between the rotary sealing rings of the oil supply slip ring 800 flows back to the gear box shell 1100; the lower half shell 450 is provided with a lower half shell oil return flow passage 430, so that oil drainage at the right end of the oil supply slip ring 800 and lubricating oil flowing through the tapered roller bearing I210 flow back to the gearbox shell 1100; the oil drain at the left end of the oil supply slip ring 800 flows through the tapered roller bearing 2220 and directly flows back to the gearbox shell 1100.
The input flange 100 compresses the inner ring of the tapered roller bearing I210, the bearing gap adjusting ring 420 is located between the large end face of the outer ring of the tapered roller bearing I210 and the shell, and the axial gap between the bearing groups of the tapered roller bearing I210 and the tapered roller bearing II 220 can be changed by adjusting the thickness of the bearing gap adjusting ring 420, so that the support rigidity and the rotation precision of the input shaft 200 are changed.
The input shaft output flange 230 is rigidly connected to the clutch input ring gear 900 via the torque transmission pins 910 and the connecting bolts 920, and the input shaft 200 can be transmitted to the clutch input ring gear 900 without loss.
The rotary shaft seal 92, the rotary shaft seal partition plate 90 and the rotary shaft seal 94 are sequentially arranged in an inner hole of the circular rotary shaft seal support 70 from left to right, and the rotary shaft seal baffle plate 80 is arranged at the right end of the rotary shaft seal support 70 and used for blocking the rotary shaft seal 94. A rotary shaft seal partition 90 separates rotary shaft seal 92 and rotary shaft seal 94. The rotary shaft seal holder 70 is rigidly connected to the upper half-shell 400 and the lower half-shell 450, and maintains the same axis.
The rotary shaft seal support 70 is installed at the right end of the housing, and the rotary shaft seal 92 and the seal lip of the rotary shaft seal 94 of the back-to-back installed rubber framework oil seal structure are in contact with the rotary shaft seal sealing surface 150 of the input flange to form rotary seal. The opening of the sealing lip of the rotary shaft seal 92 is leftward to seal internal pressure, so that leakage of lubricating oil flowing through the tapered roller bearing I210 can be prevented, and the opening of the sealing lip of the rotary shaft seal 94 is rightward to seal external pressure, so that invasion of external foreign matters can be prevented.
In fig. 2 and 3, the input shaft 200 of the hollow flange structure has an input shaft output flange 230 at the left end, an input shaft spline 240 at the right end, and an input shaft rotating slip ring mating surface 260 in the middle. To the left of the input shaft rotating slip ring mating surface 260 is an input shaft bearing mounting surface ii 222 and an input shaft bearing locating surface 224. And the right side of the input shaft rotating slip ring matching surface 260 is an input shaft bearing mounting surface I212.
An inner ring of the conical roller bearing II 220 is arranged on an input shaft bearing mounting surface II 222 in an interference fit mode and is axially limited in a leftward moving mode through an input shaft bearing positioning surface 224. An inner ring of the tapered roller bearing I210 is transitionally installed on an input shaft bearing installation surface I212.
The limiting sleeve 50 with a hollow shaft structure is arranged at the right end of the inner hole of the input shaft 200, the pressing plate 30 seals the right end of the input shaft 200 and limits the limiting sleeve 50 to move rightwards, a plurality of limiting screws 60 are screwed at the right end of the limiting sleeve 50 along the radial direction, the outer ends of the limiting screws 60 are sharp points and are tightly propped against the inner wall of the inner hole of the input shaft 200, and the limiting screws 60 can prevent the limiting sleeve 50 from rotating circumferentially.
The small end surface 54 of the limiting sleeve blocks the right end surface of the oil supply connector 300, and the pressing plate 30 blocks the large end surface 52 of the limiting sleeve
The axial and rotational degrees of freedom of the oil feed joint 300 are restricted by the pressure plate 30 and the stopper sleeve 50.
The positioning plate 20 is radially positioned by a positioning surface I244 at the right end of the input shaft 200 and is left limited by a positioning end surface 246. The positioning surface II 242 provides a positioning for the right end of the flange 100.
From left to right, input shaft bearing installation face II 222, input shaft rotating slip ring matching face 260, input shaft bearing installation face I212 locating face II 242, input shaft spline 240 addendum circle, the diameter ladder of locating face I244 reduce, the axial installation and the dismantlement of convenient cooperation part.
From left to right, input shaft 200 hole diameter grow gradually, makes things convenient for the axial installation of fuel feed connector 300 and stop collar 50.
In fig. 4, the right flange body 110 of the input flange 100 is formed with a flange torque bore 116 for rigid connection with the input coupling. The input flange 100 is splined in its internal bore by input flange internal splines 120 which are in splined engagement with input shaft splines 240.
The right side of the inner hole of the input flange 100 is provided with a positioning hole II 130, the O-shaped sealing ring mounting groove 140 is distributed at the left end of the cylindrical surface of the positioning hole II 130, and the positioning hole II 130 and the positioning surface II 242 form clearance fit, so that the right end of the input flange 100 is positioned on the input shaft 200. The O-ring mounting groove 140 prevents the lubricating oil flowing through the tapered roller bearing i 210 from leaking through the input shaft spline 240. The positioning hole I112 and the positioning end face 114 at the right end of the input flange 100 enable the positioning plate 20 to be limited on the input flange 100.
The input flange positioning surface 160 at the left end of the input flange 100 is tightly pressed on the large end surface of the inner ring of the tapered roller bearing I210, so that the tapered roller bearing I is limited to the right. The input flange rotary shaft seal cover 150 is located outside the cylindrical section of the input flange 100 and is a smooth hardened cylindrical surface that forms a rotary seal with the rotary shaft seal 94 of the rubber frame structure.
In fig. 5, the hollow stepped shaft structure oil supply joint 300 is composed of a dynamic seal section 310, a transition section 320, a static seal section 330 and a positioning section 340 in sequence from left to right. The central plug 350 is installed at the central portion of the static sealing section 330 to seal the right end of the oil supply connector.
The left end face of the positioning section 340 abuts against the inner end face of the central hole of the input shaft 200, so that the oil supply connector 300 is limited from moving left, and meanwhile, the right end face 342 of the positioning section 340 is supported by the small end face 54 of the limiting sleeve. The right end face of the positioning section 340 is provided with 4 anti-rotation grooves 344, and the small end face 54 of the stop collar is convexly inserted into the anti-rotation grooves 344 to prevent the oil supply joint 300 from rotating.
By limiting the positioning segment 340, the static seal segment 330 is aligned with the input shaft 200 across the width of the input shaft rotating slip ring mating surface 260.
An O-shaped sealing ring and groove 334, a static sealing section ring groove I331, an O-shaped sealing ring and groove 334, a static sealing section ring groove II 332, an O-shaped sealing ring and groove 334 and a static sealing section ring groove III 333O-shaped sealing ring and groove 334 are sequentially arranged from left to right on the cylindrical static sealing section 330, and the mutual sealing of all oil passages is ensured.
In the upper half part of the longitudinal section of the oil supply joint 300, a transverse hole 321 of an oil duct I is opened from the left end face of the oil supply joint 300 to the position below a static sealing section annular groove I331, a radial hole b324 of the oil duct I communicates the static sealing section annular groove I331 with the transverse hole 321 of the oil duct I, and the left end of the transverse hole 321 of the oil duct I is sealed by an oil duct I plug 322 to prevent leakage. The I radial oil duct hole a323 is communicated with the I transverse oil duct hole 321 and the I dynamic sealing section ring groove 314, so that the working oil I in the I radial oil duct hole b324 can be introduced into the I dynamic sealing section ring groove 314.
In the lower half of the longitudinal section of the oil supply joint 300, an oil duct II transverse hole 325 is opened from the left end face of the oil supply joint 300 to the position above a static sealing section ring groove II 333, an oil duct II radial hole b328 communicates the static sealing section ring groove II 333 with an oil duct II radial hole b328, and an oil duct II plug 326 seals the left end of the oil duct II transverse hole 325 to prevent leakage. And the radial hole a327 of the oil duct II is communicated with the transverse hole 325 of the oil duct II and the dynamic sealing section ring groove II 315, so that the working oil II of the static sealing section ring groove II 333 can be introduced into the dynamic sealing section ring groove II 315.
The left end of the central hole of the oil supply joint 300 is a lubricating oil transverse hole 335, the right end is a thread 336, and the central plug 350 is screwed and fixed by the thread 336. The lubricating oil radial hole 329 is communicated with the static sealing section ring groove III 332 and the lubricating oil transverse hole 335, the outlet of the lubricating oil transverse hole 335 is communicated with the clutch inner shaft lubricating oil channel 1030, and the lubricating oil of the static sealing section ring groove III 332 can enter the clutch inner shaft lubricating oil channel 1030.
In fig. 6, a seal ring 312, a drain hole 313, a seal ring 312, a dynamic seal section ring groove i 314, a seal ring 312, a drain hole 313, a seal ring 312, a dynamic seal section ring groove ii 315, a seal ring 312, and a drain hole 313 on a dynamic seal section 310 are arranged in order from left to right.
And a drainage cross hole 316 is formed in the left end face of the oil supply joint 300, the drainage cross hole 316 is a blind hole, the distribution diameter of the drainage cross hole is smaller than the diameters of the groove bottoms of the dynamic sealing section ring groove I314 and the dynamic sealing section ring groove II 315, and a safety distance is reserved. The three oil drainage holes 313 are communicated together by the oil drainage cross hole 316, and the left channel of the oil drainage cross hole 316 is blocked by an oil drainage cross hole plug 317. The oil drain hole 313 enables the working oil leaked from the dynamic sealing section ring groove I314 or the dynamic sealing section ring groove II 315 to be confluent and discharged, so that the working oil of the dynamic sealing section ring groove I314 or the dynamic sealing section ring groove II 315 is prevented from being in cavity crossing with each other, and the clutch is prevented from generating misoperation.
The dynamic sealing section ring groove I314 is axially aligned with the clutch inner shaft working oil passage I1010, the dynamic sealing section ring groove II 315 is axially aligned with the clutch inner shaft working oil passage II 1020, and two paths of working oil can respectively enter different flow passage positions inside the clutch inner shaft 1000.
In fig. 7, an outer annular surface 810 of an annular oil supply slip ring 800 is provided with a mounting hole for a stopper pin 850, an O-ring mounting groove 813, an outer annular groove for an oil supply slip ring i 816, an O-ring mounting groove 813, an outer annular groove for an oil supply slip ring iii 814, an O-ring mounting groove 813, a radial oil discharge hole 846 for an oil supply slip ring, an O-ring mounting groove 813, an outer annular groove for an oil supply slip ring ii 812, and an O-ring mounting groove 813 in sequence from left to right
Annular oil supply sliding ring 800 inner annular surface 820 has made rotary seal ring mounting groove 823, oil supply sliding ring inner annular groove I826, rotary seal ring mounting groove 823, the radial draining hole 848 of oil supply sliding ring, rotary seal ring mounting groove 823, oil supply sliding ring inner annular groove III 824, rotary seal ring mounting groove 823, the radial draining hole 848 of oil supply sliding ring, rotary seal ring mounting groove 823, oil supply sliding ring inner annular groove II 822, rotary seal ring mounting groove 823 in proper order from left to right.
The groove width center lines of the oil supply sliding ring outer ring groove I816, the oil supply sliding ring inner ring groove I826, the oil supply sliding ring outer ring groove III 814, the oil supply sliding ring inner ring groove III 824, and the oil supply sliding ring outer ring groove II 812 and the oil supply sliding ring inner ring groove II 822 are respectively aligned.
The communicating hole I852 communicates an outer annular groove I816 of the oil supply slip ring with an inner annular groove I826 of the oil supply slip ring; the connecting hole II 854 is communicated with an outer ring groove III 814 of the oil supply slip ring and an inner ring groove III 824 of the oil supply slip ring; the communicating hole III 856 is communicated with an outer ring groove II 812 of the oil supply slip ring and an inner ring groove II 822 of the oil supply slip ring;
according to the characteristics and pressure of the sealing medium to be sealed, the rotating speed of the input shaft 200 and the diameter of the matching surface 260 of the rotating slip ring of the input shaft, an O-shaped sealing ring made of a suitable material is arranged in the O-shaped sealing ring installation groove 813, and a rotating sealing ring made of a suitable material and with a suitable structure, such as a Glare ring, a combined modified polytetrafluoroethylene sealing ring and the like, is arranged in the rotating sealing ring installation groove 823.
The oil supply slip ring right positioning end face 840 is provided with an oil supply slip ring oil drainage transverse hole 842, the oil supply slip ring oil drainage transverse hole 842 is a blind hole and is communicated with the oil supply slip ring radial oil drainage hole 846 and all the oil supply slip ring radial oil drainage holes 848. The oil supply slip ring oil drainage transverse hole plug 844 plugs the oil supply slip ring oil drainage transverse hole 842 at an inlet of the oil supply slip ring right positioning end face 840, so that lubricating oil or working oil leaked from the rotary sealing ring mounting groove 823 can only flow to the oil supply slip ring radial oil drainage hole 846 through the oil supply slip ring radial oil drainage hole 848 and enter the upper half casing oil return flow passage 440 to flow into the gear box casing 1100. The mutual influence between the working oil I and the working oil II and between the working oil I, the working oil II and the lubricating oil III is prevented.
The oil supply slip ring 800 is pressed on the large end face left limit of the outer ring of the tapered roller bearing II 220 through the oil supply slip ring left locating end face 830, and is pressed on the locating ring face on the shell through the oil supply slip ring right locating end face 840 to perform right limit.
In fig. 8, an oil supply slip ring lubricating oil transverse hole 866 and an oil supply slip ring oil drainage transverse hole 842 are arranged in an axial symmetry manner, the oil supply slip ring lubricating oil transverse hole 866 is a through hole penetrating through the left and right end faces of the oil supply slip ring 800, a lubricating oil spray plug ii 864 and a lubricating oil spray plug i 862 are located at the left and right ends of the oil supply slip ring lubricating oil transverse hole 866, an oil supply slip ring lubricating oil radial oil supply hole 868 is communicated with the oil supply slip ring lubricating oil transverse hole 866 and an oil supply slip ring outer annular groove iii 814, and lubricating oil supplied by the oil supply slip ring outer annular groove iii 814 can be sprayed and lubricated for the tapered roller bearing i 210 and the tapered roller bearing ii 220 through the lubricating oil spray plug ii 864 and the lubricating oil spray plug i 862.
In fig. 9, the upper half 410 and lower half 460 support plates are joined together by fasteners such as split bolt and pin. Upper housing half 400 and lower housing half 450 are also joined together by fasteners such as split bolt and dowel. While the upper and lower half cases 400 and 450 are coupled to the upper and lower support plates 410 and 460 by bolts.
After the split bolts and pins are removed, the upper half supporting plate 410 and the upper half shell 400 can be integrally detached, and the lower half supporting plate 460 and the lower half shell 450 continue to keep a rigid connection relationship, so that the input shaft 200 and the connecting parts thereof can be positioned and supported, and the tapered roller bearing I210 and the tapered roller bearing II 220 can be conveniently checked and clearance can be conveniently adjusted.
The lubricating oil supply pipe 700 is installed right above the upper half case 400, and when the lubricating oil stops being supplied accidentally, the oil stored in the lubricating oil supply pipe 700 continues to flow into the clutch under the action of gravity, which is beneficial to prolonging the time of the clutch becoming lean.
The working oil supply pipe II 600 and the working oil supply pipe I500 are arranged right below the lower half shell 450, so that the working oil can flow back quickly after the clutch is released, the piston retraction time is shortened, and the clutch belt displacement torque in the piston retraction and release stage is reduced.
An input shaft assembly of a friction clutch of a marine gearbox with an oil supply device is formed by sequentially connecting a pressing plate, a positioning plate, an input flange, an input shaft, a tapered roller bearing, a shell, a supporting plate, an oil supply sliding ring, an oil way joint, a limiting sleeve, an oil seal assembly, an oil supply pipe and the like. The hollow input shaft is supported on the shell and the supporting plate through two tapered roller bearings which are back to back and have a certain mounting span, the oil supply slip ring limited by the shell is positioned between the two tapered roller bearings, and the oil supply slip ring and the input shaft form rotary seal. The oil circuit joint is positioned in the central hole of the input shaft, and the part of the oil circuit joint, which protrudes out of the input shaft, is provided with a rotary sealing ring to form rotary sealing with the inner shaft of the friction clutch. The radial hole at the matching part of the input shaft and the oil supply sliding ring is communicated with the oil way joint and the oil duct of the oil supply sliding ring. The oil supply pipe is arranged on the shell, and the radial hole of the shell is communicated with the oil ducts of the oil supply pipe and the oil supply sliding ring. The invention realizes the combined function of power transmission and radial oil supply and has compact structure.

Claims (8)

1. The utility model provides a marine gear box friction clutch input shaft subassembly with oil supply unit is formed by connecting in order such as clamp plate, locating plate, input flange, input shaft, tapered roller bearing, casing, backup pad, oil feeding sliding ring, oil circuit joint, stop collar, oil blanket subassembly, oil supply pipe, characterized by: the left end of an input shaft (200) of the hollow flange shaft structure is an input shaft output flange (230), the right end of the input shaft (200) is connected with the input flange (100), the input flange (100) is positioned on the right end of the input shaft (200) through a positioning plate (20) and is axially fixed through a pressing plate (30), and the input shaft (200) is supported on an upper half shell (400) and a lower half shell (450) of a circular ring column structure through a tapered roller bearing I (210) and a tapered roller bearing II (220) which are arranged back to back; the upper half shell (400) and the upper half support plate (410) and the lower half shell (450) and the lower half support plate (460) are rigidly connected together through fasteners; the upper half supporting plate (410) and the lower half supporting plate (460) are rigidly connected to the gearbox shell (1100) through fasteners; the excircle of the annular oil supply slip ring (800) is positioned on a shell formed by the upper half shell (400) and the lower half shell (450), and the inner ring surface (820) of the oil supply slip ring (800) is in clearance fit with the matching surface (260) of the input shaft rotating slip ring; a lubricating oil supply pipe (700) is rigidly fixed on the upper half shell (400), a working oil supply pipe I (500) and a working oil supply pipe II (600) are respectively and rigidly fixed on the lower half shell (450), lubricating oil is supplied to the inlet of the lubricating oil supply pipe (700), and working oil with different pressures is supplied to the inlets of the working oil supply pipe I (500) and the working oil supply pipe II (600); the oil supply joint (300) is arranged at the center of the left side of the input shaft (200), the oil supply joint (300) protrudes out of one section of the input shaft (200) and extends into the clutch inner shaft (1000), and oil of the lubricating oil supply pipe (700), the working oil supply pipe I (500) and the working oil supply pipe II (600) finally enters the clutch inner shaft (1000) through the oil supply slip ring (800) and the oil supply joint (300);
the hollow stepped shaft structure oil supply joint (300) is sequentially composed of a dynamic sealing section (310), a transition section (320), a static sealing section (330) and a positioning section (340) from left to right, and a central plug (350) is installed in the central part of the static sealing section (330) and seals the right end of the oil supply joint; the left end face of the positioning section (340) is abutted against the inner end face of the central hole of the input shaft (200) to limit the oil supply joint (300) to move left, and meanwhile, the right end face (342) of the positioning section (340) is propped against the small end face (54) of the limiting sleeve; 4 anti-rotation grooves (344) are formed in the right end face of the positioning section (340), and the small end face (54) of the limiting sleeve is convexly inserted into the anti-rotation grooves (344) to prevent the oil supply joint (300) from rotating; through the limit of the positioning section (340), the static sealing section (330) is aligned with the input shaft (200) within the width range of the matching surface (260) of the rotating slip ring of the input shaft;
the outer ring surface (810) of the annular oil supply sliding ring (800) is sequentially provided with a mounting hole for a brake pin (850), an O-shaped sealing ring mounting groove (813), an oil supply sliding ring outer ring groove I (816), an O-shaped sealing ring mounting groove (813), an oil supply sliding ring outer ring groove III (814), an O-shaped sealing ring mounting groove (813), an oil supply sliding ring radial oil drain hole (846), an O-shaped sealing ring mounting groove (813), an oil supply sliding ring outer ring groove II (812) and an O-shaped sealing ring mounting groove (813) from left to right; annular fuel feeding sliding ring (800) inner annular surface (820) has made rotary seal ring mounting groove (823), fuel feeding sliding ring inner annular groove I (826), rotary seal ring mounting groove (823), radial fuel drain hole (848) of fuel feeding sliding ring, rotary seal ring mounting groove (823), fuel feeding sliding ring inner annular groove III (824), rotary seal ring mounting groove (823), radial fuel drain hole (848) of fuel feeding sliding ring, rotary seal ring mounting groove (823), fuel feeding sliding ring inner annular groove II (822), rotary seal ring mounting groove (823) in proper order from left to right.
2. The marine gearbox friction clutch input shaft assembly with oil supply of claim 1 further characterized by:
the input flange (100) compresses an inner ring of a tapered roller bearing I (210), a bearing gap adjusting ring (420) is positioned between the large end face of an outer ring of the tapered roller bearing I (210) and a shell, and the axial gap between the tapered roller bearing I (210) and a bearing group of a tapered roller bearing II (220) can be changed by adjusting the thickness of the bearing gap adjusting ring (420), so that the support rigidity and the rotation precision of the input shaft (200) are changed; the input shaft output flange (230) is rigidly connected with the clutch input gear ring (900) through the torque transmission pins (910) and the connecting bolts (920), and the input shaft (200) can be transmitted to the clutch input gear ring (900) without loss.
3. The marine gearbox friction clutch input shaft assembly with oil supply of claim 1 further characterized by:
the rotary shaft seal I (92), the rotary shaft seal baffle (90) and the rotary shaft seal II (94) are sequentially arranged in an inner hole of a circular rotary shaft seal support (70) from left to right, the rotary shaft seal baffle (80) is arranged at the right end of the rotary shaft seal support (70) to block the rotary shaft seal II (94), the rotary shaft seal I (92) and the rotary shaft seal II (94) are separated by the rotary shaft seal baffle (90), the rotary shaft seal support (70) is rigidly connected with an upper half shell (400) and a lower half shell (450) and keeps the same axle center, the rotary shaft seal support (70) is arranged at the right end of the shell, the rotary shaft seal I (92) of a rubber framework oil seal structure arranged back to back and the sealing lip of the rotary shaft seal II (94) are contacted with an input flange rotary sealing surface (150) to form rotary seal, the sealing lip of the rotary shaft seal I (92) is opened to the left to seal the internal pressure, the lubricating oil flowing through the tapered roller bearing I (210) can be prevented from leaking, the sealing lip opening of the rotary shaft seal II (94) is towards the right, the external pressure is sealed, and the invasion of external foreign matters can be prevented.
4. The marine gearbox friction clutch input shaft assembly with oil supply of claim 1 further characterized by:
the upper half shell (400) is provided with an upper half shell oil return flow passage (440) so that oil drainage between rotary sealing rings of the oil supply slip ring (800) flows back to the gearbox shell (1100); the lower half shell (450) is provided with a lower half shell oil return flow passage (430) so that oil drainage at the right end of the oil supply slip ring (800) and lubricating oil flowing through the tapered roller bearing I (210) can return to the gearbox shell (1100); the oil drainage at the left end of the oil supply slip ring (800) flows through the tapered roller bearing II (220) and directly flows back to the gearbox shell (1100).
5. The marine gearbox friction clutch input shaft assembly with oil supply of claim 1 further characterized by:
an O-shaped sealing ring and a groove (334) are arranged on the static sealing section (330), a ring groove I (331) of the static sealing section, an O-shaped sealing ring and a groove (334), a ring groove III (332) of the static sealing section, an O-shaped sealing ring and a groove (334), and a ring groove II (333) of the static sealing section, the O-shaped sealing ring and the groove (334) are sequentially arranged from left to right, so that the mutual sealing of all oil ducts is ensured; in the upper half part of the longitudinal section of the oil supply joint (300), a transverse hole (321) of an oil duct I is opened from the left end face of the oil supply joint (300) to the position below a static sealing section ring groove I (331), and a radial hole b (324) of the oil duct I is communicated with the static sealing section ring groove I (331) and the transverse hole (321) of the oil duct I; the oil duct I plug (322) seals the left end of a transverse hole (321) of the oil duct I to prevent leakage; the radial hole a (323) of the oil duct I is communicated with the transverse hole (321) of the oil duct I and the dynamic sealing section ring groove I (314), and the working oil I of the radial hole b (324) of the oil duct I can be introduced into the dynamic sealing section ring groove I (314); in the lower half part of the longitudinal section of the oil supply joint (300), an oil duct II cross hole (325) is opened from the left end face of the oil supply joint (300) to the position above a static sealing section ring groove II (333), an oil duct II radial hole b (328) is communicated with the static sealing section ring groove II (333) and an oil duct II plug (326) of the oil duct II radial hole b (328) to seal the right end of the oil duct II cross hole (325) to prevent leakage; the radial hole a (327) of the oil duct II is communicated with the transverse hole (325) of the oil duct II and the dynamic sealing section ring groove II (315), and the working oil II of the static sealing section ring groove II (333) can be introduced into the dynamic sealing section ring groove II (315); the left end of the central hole of the oil supply joint (300) is a lubricating oil transverse hole (335), the right end is a thread (336), and the central plug (350) is screwed and fixed through the thread (336); and the lubricating oil radial hole (329) is communicated with the static sealing section ring groove III (332) and the lubricating oil transverse hole (335), the outlet of the lubricating oil transverse hole (335) is communicated with a lubricating oil channel (1030) of the clutch inner shaft, and the lubricating oil of the static sealing section ring groove III (332) can enter the lubricating oil channel (1030) of the clutch inner shaft.
6. The marine gearbox friction clutch input shaft assembly with oil supply of claim 1 further characterized by:
the sealing ring (312), the oil drainage hole (313), the sealing ring (312), the dynamic sealing section ring groove I (314), the sealing ring (312), the oil drainage hole (313), the sealing ring (312), the dynamic sealing section ring groove II (315), the sealing ring (312) and the oil drainage hole (313) on the dynamic sealing section (310) are sequentially arranged from left to right; an oil drainage cross hole (316) is formed in the left end face of the oil supply connector (300), the oil drainage cross hole (316) is a blind hole, the distribution diameter of the blind hole is smaller than the diameters of the bottoms of the dynamic sealing section ring grooves I (314) and the dynamic sealing section ring groove II (315), and a safety distance is reserved; the three oil drainage holes (313) are communicated together by the oil drainage cross hole (316), and a left channel of the oil drainage cross hole (316) is blocked by an oil drainage cross hole plug (317); the oil drainage hole (313) enables working oil leaked from the dynamic sealing section ring groove I (314) or the dynamic sealing section ring groove II (315) to be converged and drained; the dynamic sealing section ring groove I (314) is axially aligned with the clutch inner shaft working oil passage I (1010), the dynamic sealing section ring groove II (315) is axially aligned with the clutch inner shaft working oil passage II (1020), and the two paths of working oil can respectively enter different flow passage positions inside the clutch inner shaft (1000).
7. The marine gearbox friction clutch input shaft assembly with oil supply of claim 1 further characterized by:
the oil supply sliding ring outer ring groove I (816) and the oil supply sliding ring inner ring groove I (826), the oil supply sliding ring outer ring groove III (814) and the oil supply sliding ring inner ring groove III (824), and the groove width center lines of the oil supply sliding ring outer ring groove II (812) and the oil supply sliding ring inner ring groove II (822) are respectively aligned; the communicating hole I (852) is communicated with the oil supply sliding ring outer annular groove I (816) and the oil supply sliding ring inner annular groove I (826); the connecting hole II (854) is communicated with an outer ring groove II (812) of the oil supply slip ring and an inner ring groove II (822) of the oil supply slip ring; the communicating hole III (856) is communicated with an outer annular groove III (814) of the oil supply slip ring and an inner annular groove III (824) of the oil supply slip ring; an O-shaped sealing ring made of a proper material is arranged in the O-shaped sealing ring mounting groove (813) as required, and a rotary sealing ring made of a proper material and with a proper structure is arranged in the rotary sealing ring mounting groove (823); an oil supply sliding ring oil drainage transverse hole (842) is formed in the right positioning end face (840) of the oil supply sliding ring, the oil supply sliding ring oil drainage transverse hole (842) is a blind hole and is communicated with an oil supply sliding ring radial oil drainage hole (846) and all oil supply sliding ring radial oil drainage holes (848); an oil supply sliding ring oil drainage transverse hole plug (844) plugs an inlet of an oil supply sliding ring oil drainage transverse hole (842) on the right positioning end face (840) of the oil supply sliding ring, and lubricating oil or working oil leaked from a rotary sealing ring mounting groove (823) flows to an oil supply sliding ring radial oil drainage hole (846) through an oil supply sliding ring radial oil drainage hole (848) and enters an upper half shell oil return flow channel (440) to flow into a gear box shell (1100); the lubricating oil transverse hole (866) of the oil supply slip ring and the oil drainage transverse hole (842) of the oil supply slip ring are arranged in an axial symmetry manner, the lubricating oil transverse hole (866) of the oil supply slip ring is a through hole penetrating through the left end face and the right end face of the oil supply slip ring (800), the lubricating oil spray plug II (864) and the lubricating oil spray plug I (862) are positioned at the left end and the right end of the lubricating oil transverse hole (866) of the oil supply slip ring, and the lubricating oil radial oil supply hole (868) of the slip ring is communicated with the lubricating oil transverse hole (866) of the oil supply slip ring and the outer ring groove III (814) of the oil supply slip ring.
8. The marine gearbox friction clutch input shaft assembly with oil supply of claim 1 further characterized by:
the upper half supporting plate (410) and the lower half supporting plate (460) are connected together through fasteners such as split bolt pins, the upper half shell (400) and the lower half shell (450) are also connected together through fasteners such as split bolt pins, and meanwhile, the upper half shell (400) and the lower half shell (450) are connected together through bolts and the upper half supporting plate (410) and the lower half supporting plate (460); after the split bolt and the pin are removed, the upper half support plate (410) and the upper half shell (400) can be integrally detached, and the lower half support plate (460) and the lower half shell (450) are continuously in a rigid connection relationship and can still provide positioning and supporting for the input shaft (200) and the connecting parts thereof; a lubricating oil supply pipe (700) is arranged right above the upper half shell (400); the working oil supply pipe II (600) and the working oil supply pipe I (500) are installed right below the lower half shell (450).
CN202110831848.9A 2021-07-22 2021-07-22 Marine gear box friction clutch input shaft assembly with oil supply device Active CN113483088B (en)

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CN107152468A (en) * 2017-06-12 2017-09-12 中国航发哈尔滨东安发动机有限公司 A kind of slip clutch with overload protection
CN114235390B (en) * 2021-12-09 2024-04-12 中国船舶重工集团公司第七0三研究所 Swing actuator and method for controlling and measuring movement of clutch sliding piece

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