172
Oil baffle (4) is made of steel. It is intended, to restrict flow of oil to oil sealing collar (3) of the airscrew
shaft.
The rubber oil sealing collar with metal insert is intended for sealing the airscrew shaft. Oil flows from the
radial ball bearing cover space and through the hole in the crankcase front end to the crankcase space. To
preclude wear of the airscrew shaft, steel bushing (2) is arranged under the sealing collar working lip.
Radial ball bearing cover (6) is installed in the front bore of the gearbox housing, is attached by nine studa
and serves to press the ball bearing to the gearbox housing and take up axial load of the airscrew.
2.3. GEARBOX PLANETARY TRAIN
The gearbox planetary train comprises the following main parts: drive gear ring (17) mounted on hub (19),
gearbox sun gear (29), six satellites (15) installed in satellite cage (28) on pivots (16).
Drive gear ring (17) is made of high-grade steel in the form of internally toothed ring; the teeth mean with
the satellites.
The drive ring have teeth with portions of decreased height serving as splines for mating the ring with the
hub and two grooves for retaining rings.
The splined joint of the drive gear ring and the hub has clearances between splines which allows the ring to
self-align with the satellite gears.
Drive gear ring hub (19) is made of high-grade steel integrally with the splined bushing having involute
splines by which the hub is fitted to the crankshaft front end. External cemented splines are made on the hub for
coupling with the drive gear ring. Drive gear ring steel retaining rings (18) are of a rectangular cross section; they
are installed in the drive gear ring annular grooves and serve to limit its axial displacement in the hub.
Sun gear (29) of the gearbox comprises hub (12) with internal involute splined and retaining ring (30).
The sun gear is made of high-grade steel. Gear tooth portions of reduced height serve for splining it on the
hub. The gear splined joint with the hub has a clearance between splines for self-aligning on the satellite teeth.
The annular recess made on the gear splines is intended to receive the retaining ring. The gear teeth are
cemented.
The steel hub of the sun gear is a disk with internal involute splines. Fifteen holes uniformly spaced around
the hub flange are designed to receive bolts (13) tor attachment of the hub to the crankcaae front and smaller
adjacent holes are used to receive plate lock tabs for safetying the bolts.
Pour holes in the hub disk are intended, to breath the craiikcase front end space and decrease weight of
the part.
Steel resilient retaining ring (30) is of a rectangular cross section and it intended to limit longitudinal
displacement of the gear along the hub.
Gearbox satellites (15) are cemented-tooth gears with an internal cylindrical hole serving as a support
surface for a needle roller bearing. Aligning circular recesses for thrust washers are made on both sides of the
satellites.
Satellites rotate on double-row needle roller bearings having 33 rollers per row each. The rows are
separated by a ring. When assembling the bearings, the rollers are divided into two groups with a diameter
difference of up to 0.005 mm.
Rollers of only one group are installed in one bearing; changing separate rollers between the bearings is
not allowed.
Satellite pivots (16) are hollow pins with a solid rear wall. They are made of high-grade steel and are
interchangeable. The outer cylindrical surface of the pivot has steps of three different diameters to simplify
installation and protect against scores in re-pressing.
The pivots are pressed with outer copper-plated necks into the satellite cage holes, the satellite rotates on
the middle neck of the pivot.
Provided on the pivot on the larger neck side is a collar limiting longitudinal dis"-placement of the pivot.
Two holes are drilled to the cylindrical surfaces of the pivot. The hole with groove is intended to supply oil to the
pivot space; another hole made in the middle part of the pivot supplies oil to the needle roller bearing of the
satellite. An aluminium plug with a threaded hole for the puller is pressed in a special bore in the pivot end. Locking
strip (35) pressed to the flat on the pivot collar and is secured by two screws (14) to the satellite cage is intended to
prevent the pivot against turning and longitudinal displacement. The screws are locked with wire.
Satellite cage (28) is made of steel in the form of a hexagonal box with a hub integrated with one lateral
wall and six side ports for satellites and six holes for satellite pivots.
Содержание M-14P
Страница 6: ...19 Engine M 14P Front View Figure 1...
Страница 7: ...20 Engine M 14P Rear View Figure 2...
Страница 27: ...40 Arrangement of Airborne Tools in Case Figure 1...
Страница 39: ......
Страница 44: ...57 Engine M 14P Test Run Chart Figure 201...
Страница 67: ...80...
Страница 163: ...176 Crankshaft Thrust Ball Bearing Front Cover Figure 1 Intermediate Crankcase Figure 2...
Страница 166: ...179 Intermediate Grankcase Front Portion Figure 3 Intermediate Crankcase Rear Portion Figure 4...
Страница 173: ...186 Front view Cylinder Figure 1 Rear view...
Страница 174: ...187 1 Inlet Valve 2 Outer Spring 3 Inner Spring 4 Split Retainer 5 Valve Plate Inlet Valve Figure 2...
Страница 178: ...191 Intake Pipe of Cylinders Nos 4 5 and 6 Figure 4 Piston Piston Rings and Piston Pin with Plugs Figure 5...
Страница 180: ...193 Timing Mechanism Schematic Diagram Figure 6 Cam Plate Figure 7...
Страница 189: ...Blower Longitudinal Section View Figure 1...
Страница 191: ...Rear view Mixture Collector Figure 2 Diffuser Figure 3...
Страница 194: ...1 Plate 2 Spring 3 Plate 4 Gear 5 Accessory Drive Shaft Blower Coupling Figure 4...
Страница 204: ...Oil Sump Figure 4...
Страница 216: ...Engine M 14P Gear Train Figure 1...
Страница 247: ...Carburetor AK 14P Operation Diagram Figure 1...
Страница 249: ......
Страница 267: ...OPERATIONS AND TECHNICAL REQUIREMENTS CORRECTIVE ACTIONS CH ECKED BY Carburetor AK 14P Right Side View Figure 201...
Страница 273: ...Carburetor Altitude Control Needle Position Versus Barometric Pressure Barometric Graph Figure 203...
Страница 274: ......
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Страница 288: ...T t en 0 CO 0 T K D fi h0 Ol f 01 3 0 F4...
Страница 293: ......
Страница 309: ...SPARK PLUG SD 49SMM MAINTENANCE PRACTICES 1 LIST OF TASK CARDS Title Task Card Uo Removal 201 Installation 202...
Страница 344: ...Generator Electrical Connection Diagram Commutator Side View Figure 3 1 Main Pole 2 Interpole...
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Страница 358: ......