DE1965576U - VERBUND PLANETARY GEARS. - Google Patents

Description

V RA.302 728-2, p. 67

Patent attorney

Dipl.-Ing. Karl Wessel _{8 Münolien the 0} , _June , ₉

Coin 13
Hohenstaufenstrasse 2, Tel. 33 8111

HCW-1366

lord-Werke Aktiengesellschaft Cologne- Hiehl, Henry-EOrd-Strasse

"Ve rbund-Planet enget ri e'b e. ^S!

For this application priority is _{claimed from application Ser 0} Ho "421 529 dated December 28, 1954 - in the United States of America"

The hiring relates to a planetary gear, in particular it relates to a planetary gear for motor vehicles, at aera the relative movement of the gear parts are controlled by devices generating friction moments, which are arranged in the course of the gear so that they have a maximum υτ-eh torque transmission capacity with minimum,;. : aumbeansprendungo Bs are the most diverse drive systems bekaxjoit, the hydrokinetic ^ units and. Contain planetary gear assemblies in which there are three forward ratios »At a low ratio, a brake can be applied to determine a reaction part and a second brake can be applied to determine a second reaction part when an intermediate gear is set 7 / irdo The torque is set to a common Drive part for the gearbox via a first friction clutch that can be tightened as required during operation either in low gear or in intermediate gear «

The highest gear or the direct gear is obtained by solving Multiple disc brakes and, while the first clutch is engaged, achieved by engaging a second clutch, which results in a drive connection between the driving rope and a second drive part of the gear transmission.

In some transmissions used for motor vehicle drives can sveriiälunis the reaction link for low speed can be set using an overtaking brake during normal acceleration from a standing start »One with friction brake associated with the low speed ratio only becomes active during continued forward operation and attracted during reverse operation «, Der Direkt ~ Propulsion is given by tightening the lift sb pure se for low Speed ratio and a wide, arbitrarily attractable Friction clutch manufactured »

Usually a fixed supporting wall is provided which forms part of the gearbox housing. "At this end there is a protrusion that can carry an overrunning clutch track for the overrunning brake, which is used when operating at a low speed ratio." The outer surface of the clutch is provided with grooves so that they with Καρρ-lun ^ steep together can act to _β form in the 2'-O-rm of If a Way-braking effect between the tracks ^ ie ausseien traces are connected in rotation with one of the parts of the planetary gear "Normally, Precautions taken to track the outer clutch and

to lead the reaction element of the gear system by means of a bearing hollow shaft, which in turn is rotatably mounted on the gate of the 'supporting wall by means of a bushing ο The bushing must sit in such a way that it takes the brake moiaent of the friction brake ₉ which is used for this purpose to supplement the effect of the overrunning clutch.

Such an arrangement necessarily requires a proportionate Long profile for the gear unit, as space must be available for the bushing and the hollow shaft on it. The .necessity of the bush bearing in the hollow shaft caused also additional manufacturing costs for the gearbox.

The job of hiring is therefore to keep these Hachteile in the guiding the reaction member of a planetary gear of this Kind of avoidance, which results in a saving of space, as well as a simplicity of training which has not yet been achieved was possible »

Another job of! Dearness is to create a planet To create transmissions of this type, in which an eeaktions-overtaking clutch ment is provided in order to determine the heating element of the gear system o The overrunning clutch consists of an inner track and an outer track with guidance to center one track with respect to the other.

Furthermore, one task of the price increase is to provide a planetary gear of this kind, in which the planetary

Carrier of the gear system hovers freely under balanced Tooth loads and without the need to use it common carriers ,,

"Loch another task of the furnace is to provide a planetary gear to create this kind of «» in which the outer track of the clutch and the Keaktions member of the gear set means an arbitrarily applied disc brake can be braked, which is operated by a servo device, which from a single cylinder in the transmission support wall next to the Overrunning clutch exists »

In addition, it is the job of the hiring, a simplified one To create an overrunning clutch in order to set the reaction link of a gear system "

An embodiment of the innovation is explained in more detail below with reference to the drawings, "on which zei

Fig »IA ₉ IB and Lö in cross section a transmission for a motor vehicle drive _{or the like}

Figo 2 shows the cage for the overrunning clutch, which is a part of the transmission according to Eig. IA ₉ IB and IG forms.

3 shows a view of the cage according to I ¹ Ig *. 2 before it is bent. 4 shows a radial cross section according to Idnie 4 - 4 of FIG. 2,

FIG. 5 is a view according to FIG. 4 in the direction of arrows 5-5 the fig «2 *

Ifig c 6 a view of a lag erring it for the tiberholkuppiung according to Pig "2 to 5"

7 shows an enlarged cross section through the bearing ring according to Figo 6 "

FIG. 8 shows an enlarged cross-section through the liberal loop ₉ as shown in FIG. 1G.

9 shows a cross section along line 9-9 in FIG. 8.

In FIGS. ₀ IA ₃ IB and IG "10 denotes the crankshaft of an internal combustion engine for a motor vehicle. 12 denotes the output shaft which is connected to the vehicle wheels via an engine shaft and a differential sox ^ ie an axle.

The transmission has a transmission housing 14, consisting of a bell-like part 16, a planetary gear housing part 18 and a housing part 20 for the output shaft. the bell-like housing part 16 includes a hyclrokinetic one Torque converter 22 with a partial pump jacket 24, which is connected to rotation at 26 with a drive plate 28 ο The Ifabe of the drive plate 28 is at JO with the crankshaft 10 connected to the internal combustion engine by bolts.

The jacket 24 of the pump part contains pump blades 32,

the turbine blades 34 are opposite. The blades 34 Td i ld en part of a turbine 36 with a hub 38, the at 40 on the turbine shaft 42 is grooved.

A supporting wall 44 for the transmission is fixed to an annular shoulder 46 of the housing 14 by bolts you "provided is provided with a central opening 48 a hollow shaft 50 _5, the sum. Carrying the cover of the pump part. The hollow shaft 50 is keyed or grooved to the drive part of a positive displacement pump 52, which acts as a source of pressure fluid for an automatic control system, which is not shown are explained in more detail below »

A stator hollow shaft 54 carries inside the hollow shaft 50 an internally grooved overtaking brake track 56ο On the handle of the Stator 60 is attached to an outer track 58 that interacts with this inner track. The stator contains blades 62 9 the liquid canals between the outlet cut acidic the turbine 36 and the flow inlet area of the pump blades 32 = Hollen 64 of the overtaking brake, which between the tracks, cooperate with cam-like depressions in the track 58 to rotate the stator 60 to prevent opposite to the direction of rotation of the pump part, meanwhile a free rotary movement of the stator in the opposite direction To allow lease "

The stator shaft 54 is directly supported by a clutch

connected to the part 66, which ^{is fastened to the wall L} \ A- by bolts 68 »The part 66 carrying the coupling has a sleeve attachment 70 ₉ on which a brake drum 72 is rotatably mounted» This drum contains a ring cylindrical 7 ^Z S in wherein an annular piston 76 slides _β Bin braking band 7 ⁸ for the intermediate gear, which surrounds the drum 72 can be actuated by means of a suitable lüssiglsit by Druckf, servo apparatus (not shown) applied and released ,,

The piston 76 is in the sense of FIG. 1 to the left by a Number of compression springs 80 pressed, which are supported on a Peder seat 82 "to hold" the Peder seat 82 on the drum 72 serves a jumping ring «,

The drum 72 is grooved on the inside to provide a titanium connection to produce externally grooved clutch disks 84 «the latter - alternate with internally grooved coupling disks 86, which are carried by an externally grooved coupling part 88 »A clutch pressure plate 90 is also on the outside grooved with the drum 72 and is axially through a Jumping ring set «,

The cylinder 7 ^ - i ^ nd the piston 76 together form one Pressure chamber with the supply channel 92 for hydraulic fluid in the drum 72 is in communication. This channel his on the other hand, there is a hydraulic fluid channel 94- over one Annular groove in the approach 70 in connection "The approach 70 contains also lubrication channels 96 and 98 "

The coupling part. ". 88 forms part of a coupling part 10O ₅ which is grooved at 102 on the turbine shaft 42. The coupling part 100 has a single cylinder 104- which receives an annular piston 106 interacting with this cylinder" The cylinder 104 and the piston 106 form a pressure chamber which is in communication with the supply channel 108 in the coupling part 100. This channel in turn is in communication with a cap 110 which is connected to the channel 112 in the attachment 70.

The coupling part 100 is grooved on the inside with externally grooved coupling disks 114 ο These? I? Resemble one another with internally grooved coupling disks 116, which sit on an externally grooved part of the ring gear 118. When pressure is applied to the channel 108, the pressure force of the fluid is applied the piston 106 plate clutch transmitted 114 and 116 efficiently and with a King spring 120 to a printing plate 122 and from here to the IleliP "a Keaktionsplatte 124 ₅ which is carried by the coupling part 100 is," axial <held iurch a spring ring, the .Ringfeder 120 multiplies the force of the piston 106 and dampens the tightening of the multi-plate clutch when pressure is applied to the channel 108. It also acts as a return spring for the piston, which moves the piston 106 to the left when the pressure in the channel 108 is released *,

The ring gear 118 forms part of a simple planetary gear set 126 “This gear set also contains a

Sun gear. 128, it rises a planet from IJO with planetary gear shafts 132 and a number of planet gears 134, which are rotatable are mounted on shafts 132 "The planet carrier 130 is grooved at 136 on the output shaft 12",

The brake drum 72 is rotatably connected to the sun gear 128 via an engine _{bell 138 a} This bell is grooved with the drum 72 at 140 and engages over the front clutch 114 and 116 and the planet gear set 126 o The inner circumference of the bell is grooved on the inside to establish a driving connection with the sun gear 128.

Sin second planetary gear set 142 has a ring gear 144, a planet carrier 146 and a sun gear 128 ", Bas The sun gear is ideal for both planetary gear sets 126 and 142. The planetary carrier 146 has a first hanging part 148 and a second ring part 150 »these sit on the opposite Sides of the planetary gears 152, which in turn are mounted on the planetary gear shafts 154. For storage the planetary gears 152 are used! Needle roller bearings 156. The planetary gear shafts 154 are ring-shaped at the ends Planet carrier 148 and I50 carried "

The planet gears 152 mesh with the ring gear 144 and the sun gear 128. The ring gear 144 is in rotation with a Torque-transmitting part 158 connected, which is grooved at 160 on the output shaft 12 »

Between the engine bell 138 and the planet enradi / e 11 en 154 a pressure disk 162 is arranged. Another one! 164 is arranged between the torque-transmitting part 158 and the planetary gear shafts 154. Thrust washers. 166 and 168 sit on opposite sides of the pinion gears 1 ^ 2 next to the planet carrier rings 15O and 148.

A drum 170 for a multi-disc brake surrounds the ring gear 144 ″, it is connected in rotation to the planet carrier ring 150 by claws 172 which are arranged on the circumference of the ring 150 and which engage in axially extending recesses 174 on the left edge of the drum 170 ₀

Opposite radial openings in which support pins are inserted 178, the outer track 176 of a overrunning sitting at the right edge of the drum 17O ₀ The track 176 and the drum 170 to have "line inner track 180 of the overrunning brake is by means of bolts 182 to an end wall of the gear housing part 18 attached <, the overtaking brake 186 sits between the tracks 176 and 180 _β

The wall. 184 contains a hanging cylinder 188 in which a piston 190 sits “On a spring seat in the shape of a disk 194 sits a Bückführfed.er 192 for the piston, which on the Piston 190 acts., To hold the disc 194 in the axial A jumping ring is used for sighting "

Into the space between the cylinder 188 and the piston 190 hydraulic fluid can be introduced «, in a corresponding manner Channel is not "particularly shown" The brake drum 170 hats on the outside to ensure an Irish connection with internally grooved brake disks 196 to manufacture «, these are arranged alternately with externally grooved Irems disks 193, which sit in an internally grooved part 200 of the housing part 18 ο Sin reaction ring 202 for the brake is also attached to the housing part 18 and is axially fixed by a spring ring 204 »

If pressure fluid is applied to the space between the cylinder 188 and the piston 190, the piston 190 will move printed on the left9 so that the multiple discs 196 and 198 the brake drum 170 fixed

Between the torque transmitting rope 158 and the inner In lane 180 of the "overtaking brake, there is a pressure disk 206.

The planet carrier 146 can move back and forth with respect to the brake drum 170 and the brake drum is carried solely by the loose claw connection 172 and the bearing rings ₅ which form part of the overrunning clutch 176. The bearing ring will be described below. There is no need for a special sleeve as a support bearing or bushing «

End wall 184 is recessed at 208 to receive a parka gear that engages output shaft 12 at 212.

Nutet is ο Sin cover 214 for pressure fluid distribution is "at 216 attached to the band wall 184 by bolts 216. It has a sleeve part which receives a distributor device 218 which forms part of a regulator valve body for a pressure fluid regulator 220". This regulator "forms part of the automatic control valve system" This valve system contains a main valve body 222 ₉ which can sit in the transmission sump, which is located in the lower area of the housing 14 "- ^ an oil pan 224 closes an access opening in the lower part of the housing 14" It forms part of the swamp.

A. Operation in the first gear ratio can be achieved by tightening the front engine clutch 114 and 116 is set are »This is the turbine shaft 42 with the Ring gear 118 connected “Since the planet carrier 130 with the output shaft 12 is connected, a resistance against rotation arises for the planet carrier. "This rotates the sun gear 128 in opposition to the rotation of the ring gear 118. This backward movement seeks to rotate the ring gear 144 of the second planetary gear set 142 in a direction that is the direction of rotation the turbine shaft 42 corresponds to “The torque reaction des - ^ lanetenträgers the gear set 142 is about the Brake drum 17Ο and over the "overtaking brake 186 on the Transfer gear housing «,

Sin intermediate gear ratio is achieved by the front multi-disc clutch 114 and 116 remains retracted,

as well as by applying the brake band 78 “This causes the sonic gear 128 to be locked _9, whereby the planet carrier rotates at an increased speed to the speed of the hollow gear 118. The overtaking zone 186 runs freely »In this way, a gear from the lowest gear to the intermediate gear is made possible by simply pulling on a single torque-transmitting friction device, namely the brake 78»

I am a high tie speed ratio "or a direct one is achieved by tightening both couplings 86 and. 116 as well as by loosening the brake band 78 after tightening the clutches Achieved ο As a result, the ring gear 118 is firmly connected to the sun gear 128 and the individual parts of the gear sets rotate together in a ratio of 1: 1.

Reverse gear is set by releasing the front engine clutch 114 and 116 and by tightening the direct and reverse disc clutches 84 and 86 and by tightening the multi-disc brakes 196 and 198. Here, the attracted multi-plate clutch 86 and 88 transmits the turbine torque from the shaft 42 to the sun gear 128 _o The planet carrier of the rear planetary gear set 142 acts as a reaction part and the ring gear 144 rotates in the opposite direction to the direction of rotation of the turbine. As a result, the "skin 12 is rotated backwards with a reduced gear ratio"

FIGS. 8 and 9 show in detail the construction of the overhaul brake-e 186 "It sits in cam-like recesses 224, which is provided in the outer lane 176 of the overtaking brake are o between the cam-like recesses 224 and the cylindrical surface of the inner track 180 sit Hollen 226ο Finds the outer track 1? 6 clockwise in the To rotate relative to the inner track 180, the rollers 226 are clamped against the cam-like recesses 224 so that such a rotation is prevented »Works the torque on the outer track 1-76 in the opposite Sighting, rollers 226 leave track 176 in the opposite direction Moving freely in the clockwise direction relative to the track 180, “Each Holle” has a contact spring 228.

These springs have coils, with one winding winding against the associated roller and the other winding forming an abutment part which forms a part of a cage 232 for the overrunning brake = this cage is from the E ¹ Ig "2 up to 5 recognizable-

Fig. 2 shows an overall view of the cage, which represents one radially arranged side part 234 with provided on the circumference Establishing approaches 236 “These approaches oppose the cam-like recesses 224 of the outer track 176. » i> ie Abutment parts 230 extend in the axial sighting and form part of tangentially arranged strips 238. The abutment parts 232 are recessed at 240 to form a to form lugs 242, which retain the lumps 226 in the assembled state under the influence of the pressure of the leathers 228, when the overtaking brake from the tree between the inner

- 15 ■ and the outer track is removed.

The cage can be manufactured by a stamping process. After the dance process, a workpiece is created as shown in FIG. 3 “By bending the rigid inner Parts of the workpiece can be the abutments 230, the strips 238 and the parts 242 holding the lobes are molded on «,

FIG. 8 also shows two hunting rings 244 and 246. These rings are enlarged in the S ¹ Ig. 6 and 7, "They" have a radially extending hanging part 248, on the circumference of which gate jumps 250 are provided for holding. "These gate jumps prevent the bearing rings from rotating relative to the outer track 176 when it is rotating

The inner edges of the hunting rings are bent at an angle of 90 ° with respect to the integral part 248, as shown in FIG. 252 in FIG. 3 recognizable, pie bearing rings can be made of steel a storage material is provided »The rings 244 and 246 are opposite the outer track 176 by spring rings 254 and axially fixed

Hinge 244 and 246 lead the outer track with reference to FIG the inner track and hold the Hollen 226, as well as the cage stamped from sheet metal.

Claims (1)

Claims for protection Io planetary gear for Eraftfahrzeuge ₉ consisting of a sun gear, a ring gear and planet gears on a planet carrier, whereby one of these parts is driven via an Eexfoungskupplung, another part can be braked by a brake as a sealing member and the third ¹ IeIl is connected to the output shaft, The braking of the reaction member is effected by a brake drum arranged coaxially with the gear set, characterized in that the brake drum (170) surrounds the gear set (142) and its two ends are on both sides of the gear set (142), and that one The end of the brake drum (I70) is connected to the planet carrier (146g 150) of the gear set (142), which revolves freely under balanced gear loads, while the other end is mounted on an overrunning brake (186) on the other end of the gear set (142) one track (180) is stuck on the gear housing (18), 2ο transmission according to claim I _51, characterized in that the outer track (176) of the overtaking brake (186) is fixed on the inner hand of the brake drum (I70), while the inner track (180) of the "overtaking brake on an approach (184) of the 6 -E ~ criebegehäuses (18) is attached and that the brake drum (170) is connected to the planet carrier (146, 150) by a loose outer connection (172) " 3ο Transmission according to claim 1 and 2, in which the overtaking brake between a crouched track and a cylindrical track should, through which the tracks are jammed during braking, characterized in that between the tracks (176 ₉ 180) a Hollenkäage (232) is inserted _? consisting of a radially arranged, flat hinge (234) inserted on one side of the lobes (226) with axially arranged bearing parts (230) that grip between the rollers, that zvi / ischen each should (226) and one associated abutment (230) ieder (228) is seated and that on both sides of the rollers (226) a bearing ring (246) attached to one of the tracks (176) is provided, which bear against the other track (180) with bearing surfaces (2 ^ 2), whereby the tracks (176, 180) are guided to one another and the brake drum (170) is mounted in the axis of the gear set (142) allowing the planetary gear (146, 150) to float freely * 4o transmission according to claim 1 to 3? characterized, that the brake drum (170) on the outside with internally grooved brake discs (196) is reasonable that between aussei! grooved and in an inner guard (200) of the gearbox housing (18) engaging brake disks (198) and that the brake disks (196.) 198) through a pressurized fluid actuated servo device (I90) for locking the brake drum (170) are attracted. 5o transmission according to claim 1 "to 4 _0, characterized in that the servo device (190) actuated by hydraulic fluid is formed from one of the transmission housing (18)
There is a cylinder (188) in which a ring basket (190) is arranged, which engages over the IFb erh ο Ib pur se (186) and extends to the brake disks (196, 198).