DE102006035228A1 - Adapter e.g. for planetary gear, has lower housing and driving axle for admission of further axle with two mountings provided for secure rotation and shift-securing locking of driving axle in lower housing - Google Patents

Abstract

The adapter has a lower housing and a driving axle for the admission of a further axle. Two mountings are provided with each provided in a first condition for a positive, secure rotation and shift-securing, in particular axially, of locking of the driving axle in the lower housing. Each mount is provided in a second condition for an actuated connection between the driving axle. The mount is independently operable and thus the first condition is transferable over intermediate conditions into the second condition. An independent claim is included for a planetary gear, a drive unit, and a method.

Description

The The invention relates to an adapter, a planetary gear, a drive and a procedure.

From the DE 101 60 685 is known a planetary gear. In this, the sun gear is connected to an adapter shaft, which in turn is non-positively connected to the motor shaft. The motor-side housing part is designed as an adapter housing for receiving this connection.

Furthermore the adapter shaft is mounted by means of a roller bearing in the transmission housing, the adapter housing also to the gearbox counted can be.

Vorteilig is that the planetary gearbox is independently functional. Although it can be connected to a motor whose motor shaft with the adapter shaft frictionally is connectable, but there is also the possibility of other devices instead of the motor to connect input side. The motor shaft or the shaft of these other devices can even be stored over the Bearing of the adapter shaft. Thus, a fully functional Planetary gear described that is versatile.

however has this rolling bearing also have disadvantages such as heat and noise and the same.

From the DE 299 13 996 U1 a transmission is known in which an input shaft is provided, the radial distance from the transmission housing is bridged by at least one retaining ring and which is supported by means of at least one coaxial ball having support member. This is a slot 20 for the two screws 17 provided, which are axially spaced from each other. Because in 3 the hole size is 1.7 cm and 2 and 3 are true to scale.

Of the Invention is based on the object, a drive and a planetary gear inexpensive and powerful further education.

According to the invention Task with the adapter according to claim 1, in the planetary gear according to claim 6, in the drive according to claim 19 and solved in the method according to the features specified in claim 21.

Important Features of the invention in the adapter are that at least two Fastening means are provided, each fastening means for themselves in a first state for interlocking, anti-rotation and axial displacement locking locking of the driving shaft in the housing part is provided, each fastening means for in a second state for non-positive Connection between the driving shaft and the other shaft is provided, in particular wherein the fastening means independently actuated and thus from the first state over intermediate states can be converted into the second state.

From The advantage here is that the fastening means during transport, ie before mounting the other shaft, to secure the driving Shaft in the housing are usable. In particular, by each of the fastening means for themselves in the first state a lock, so a backup against rotation and axial displacement with very little play, effected. Consequently is a bearing of the driving shaft or a retaining ring or generally a support element dispensable and when operated The fastener is the driving shaft at all times durable in a defined position.

Consequently is in the invention in contrast to the prior art one combined torsional and Displacement assurance has been achieved. The fuse is also functional, though the first fastening means in the intermediate state between the first and second state is, so for example when screwing a threaded pin. Because the second attachment is meanwhile provided for arresting.

The adapter may be formed in advantageous embodiments as a clutch or as a transmission, in particular planetary gear, and be provided for mounting to a further adapter or an electric motor. In a development, the adapter is designed as a planetary gear,
comprising a planetary gears and / or planetary gears driving sun gear, a sun gear or a sun gear driving shaft and
a housing part for connection to a gear driving device, such as electric motor, internal combustion engine or an adapter or coupling connected to such a motor. The advantage here is that a weight-reduced, quieter and störungsunanfälligerer gear motor is available.

Important features of the invention in the planetary gear are that it is formed on the input side vorkomplettiert. Precompleted means that the gearbox is transportable and storable without falling apart. For this, the driving side is prepared accordingly. The driving shaft is namely held positively in the housing part. So she can not turn. Pre-completion also means that the transmission is not functional. This is so. After connecting to the driving device, the precompletion is canceled and the transmission is ready. The Vorkomplettierung is designed such that the function of the transmission is given only in conjunction with the driving device. Thus, functions of the driving device are operationally necessary and / or function-preventing features are eliminated or eliminated by or during connection or actuation.

From The advantage of the precompletion is that the gearbox is storable and transportable is. In particular, those locked by the precompletion Device parts against axial displacement and twisting, especially against falling out and against a beating caused by shaking the parts achieved against other part. The function of the transmission, namely the torque translation and speed ratio is only available after connecting with other devices, because Functions of this further device, in particular in the invention a warehouse function, added and must be activated. But this also means that the transmission itself is more compact and powerful as well as cheaper can be produced.

Alternatively, the invention also relates to a planetary gear, which a planetary gears and / or planetary gears driving sun gear,
a sun gear or a sun gear driving shaft and
a housing part for connection to a device driving the transmission, such as electric motor, internal combustion engine or an adapter or coupling connected to such a motor, wherein fastening means provided in a first state, ie in the unactuated position, for the positive connection of the driving shaft with the housing part are,
wherein the fastening means are provided in a second state, ie in the actuated position, for frictional connection between the driving shaft with a shaft of the driving device.

From The advantage here is that a positive connection during storage and transport consists. Thus falls the gear is not apart. After connecting with a driving Engine leaves Activate the function of the transmission, for which a traction between motor shaft and driving shaft of the gearbox, too connected to the sun gear, can be produced. After manufacturing the second state, ie the frictional connection and canceling the Positive fit, the transmission is ready for use, so the driving Shaft rotatable.

More important Advantage is in the invention also that the driving shaft is not in the housing part of the planetary gear is stored. In particular, for example the driving wave over the sun gear and the planet gears is loosely stored and over at least a bearing of the driving device is fixedly mounted. To this Way, on the one hand a drive-side roller bearing in the transmission can be saved with the associated Advantages, such as reduction of noise and heat development as well as space reduction, and on the other hand, a thermal length compensation executable since the sun gear is not axially limited by the planetary gears, but only a radial limitation is providable.

at an advantageous embodiment, each fastening means between the first and the second state another state on, in which the positive connection already lifted, the adhesion but not yet made. The advantage here is that Die Fastener several states or even a continuous set of states. Consequently they can be realized with simple means, such as with holes and associated Grub screws.

at According to an advantageous embodiment, the fastening means are at least provided as provided in holes threaded pins, in the second State radially screwed further than in the first state. The advantage here is that the state by the screwing can be characterized and the funds are simple and inexpensive to implement.

at an advantageous embodiment, the grub screws cause in second state the adhesion by means of deformation of a sleeve, the is stretched around the shaft of the driving device. The advantage here is that the screws are hard executable, although the rotor shaft is made soft. The sleeve thus protects the rotor shaft from damage and acts as an auxiliary fastener, so to speak.

at an advantageous embodiment, the fastening means as in a recess of the driving shaft vorgesehnen clamping ring provided in the second state, a smaller maximum outer diameter are as in the first state. The advantage here is that another easy and inexpensive realizable agent is usable.

In an advantageous embodiment, the recess is such that an untensioned clamping ring as a fastening means in the first state produces the positive connection of the driving shaft to a surrounding housing part, wherein the tensioned clamping ring as Befestigungsmit tel in the second state establishes the adhesion of the driving shaft to the shaft of the driving device. The advantage here is that a low-cost standard component is used.

at an advantageous embodiment is the driving device an electric motor and the shaft of the driving device the Rotor shaft of the same. The advantage here is that the output side Bearing of the rotor shaft for storage, especially as a fixed bearing, the driving shaft of the transmission, in particular with the sun gear connected, is usable.

at an advantageous embodiment of the input-side shaft seal provided between the sun and fasteners. Is an advantage ensuring that no lubricant can penetrate the engine.

at an advantageous embodiment seals the input-side shaft seal between housing part and driving shaft, wherein the running surface of the shaft seal on the driving shaft provided on a smaller diameter is as the driving shaft has further input side. From The advantage here is that a drive-side shaft seal can be attached is that works up to high speeds because the peripheral speed less than at high diameter.

at an advantageous embodiment, the housing part on the input side a Centering on. The advantage here is that the engine accurately connected is and thus the driving shaft relative to the output side Bearing of the engine, as a fixed bearing, can be positioned.

at an advantageous embodiment is the driving device connectable by means of fastening screws. It is advantageous that a firm centering with the centering compound produced is.

• – in einem ersten Schritt das erste und das zweite Befestigungsmittel jeweils unabhängig, also für sich die Welle der ersten Vorrichtung im Gehäuse der ersten Vorrichtung gegen Verdrehen und Verschieben sichern, also arretieren,
• – in einem zweiten Schritt die Welle der zweiten Vorrichtung in die Mittel zur Aufnahme der ersten Wellen eingeführt wird,
• – in einem dritten Schritt das Gehäuse der ersten Vorrichtung mit dem Gehäuse der zweiten Vorrichtung fest verbunden wird,
• – in einem vierten Schritt das erste Befestigungsmittel derart betätigt wird, dass dessen Verbindung mit dem Gehäuse aufgehoben und eine verdreh- und verschiebesicher Verbindung der Welle der ersten Vorrichtung mit der Welle der zweiten Vorrichtung hergestellt wird, während das zweite Befestigungsmittel weiterhin die Welle der ersten Vorrichtung im Gehäuse der ersten Vorrichtung arretiert,
• – in einem fünften Schritt das zweite Befestigungsmittel derart betätigt wird, dass dessen Verbindung mit dem Gehäuse aufgehoben wird.

Important features of the invention in the method for mounting a first device on a second device are that both devices each comprise a housing and a respective shaft,
in that the first device comprises a first and a second fastening means,
in that the shaft of the first device comprises means for receiving the shaft of the second shaft,
and that

• - In a first step, the first and the second fastening means each independently, so for themselves secure the shaft of the first device in the housing of the first device against rotation and displacement, so lock,
• In a second step, the shaft of the second device is introduced into the means for receiving the first waves,
• In a third step, the housing of the first device is fixedly connected to the housing of the second device,
• - In a fourth step, the first fastening means is actuated such that its connection with the housing is released and a rotationally and verschiebesicher connection of the shaft of the first device is made with the shaft of the second device, while the second fastening means continue the shaft of the first device locked in the housing of the first device,
• - In a fifth step, the second fastening means is actuated such that its connection with the housing is canceled.

From The advantage here is that the shaft of the first device in each Step of the process secured against twisting and axial displacement is, either by fixing in the housing or by fixing on the shaft of the second device, in turn, over bearings and the case with the housing the first device is firmly connected and fixed. This is advantageously a bearing of the shaft or a retaining ring or in general an additional support element the first device can be saved, that during operation, so for turning the waves, is dispensable and only the fixation of the wave of first device during transport or generally in the unassembled state serves.

at A further advantageous embodiment is in the fifth step the second fastening means is actuated such that a twisted and non-displaceable connection of the shaft of the first device with the shaft of the second device is produced. Advantageous is there an additional, frictional Connection of the shaft is effected together. This represents a redundancy which increased one Security.

at A further advantageous embodiment is the second device an electric motor. In a further advantageous embodiment the first and / or second device is a transmission or a clutch. As the output shaft of an electric motor has its own robust storage features, is a storage of the shaft of the first device dispensable.

In a further development, the first device is a planetary gear, and the shaft of the first device is directly connected to the sun gear of the planetary gear. As a result, the combination sun gear with shaft is advantageously mounted on the output shaft of the electric motor, whereby storage and Führungslemente ver for the combination Sonnerad with shaft in the first device are reasonable. This leads to weight reduction, reduction of bearing failures, reduction of noise and prolonging the service life.

In In a further development, each fastening means is a threaded pin formed into a concentric around the means for receiving The shaft of the second device arranged ring screwed radially becomes.

Further Advantages emerge from the subclaims.

In In the present specification, the driving side is also driving designated. Background for that is that a motor in engine mode on this side of the Transmission is connectable and torque is transmitted from the engine to the gearbox. At the driving Side of the gearbox flows the torque flow, so to speak, into gear.

Of course you can When the motor is in generator mode, the torque flow is reversed. Then flows Torque at the driving side out.

The Invention will now be explained in more detail with reference to figures:

In the 1 is a cut and in 2 a symbolic schematic section through the device according to the invention shown, showing the inventive idea. Shown is a first device, so an adapter, in training of a planetary gear. The second device to which the first device - so the planetary gear - is mounted, is not shown. This second device may be, for example, an electric motor. Details of the planetary gear are partially not executed.

The planet carrier 6 On the output side, it is mounted on one side over the bearings 7 and by means of a shaft seal 16 sealed. The planet carrier takes the planet pins 5 on which the planetary gears 3 via needle roller bearings 4 are stored. The planet wheels 3 are engaged with the housing part 9 provided ring gear and with the sun gear 12 that is stored in the planet wheels 3 , This storage can therefore represent a floating bearing.

In the invention, this storage of the sun gear is used and it is on the corresponding bearings of the DE 101 60 685 waived.

In the embodiment of the 1 or 2 is the sun gear with the adapter shaft 13 connected to the receiving the motor shaft a recess 17 having. The connection of the sun gear is designed as a press-fit connection. In further embodiments, the connection can also be executed by other positive and / or positive connection techniques.

The adapter shaft 13 is by means of shaft sealing ring 15 opposite the housing part 10 sealed.

The housing part 8th for the output side bearings 7 , the housing part 9 with the ring gear and the housing part 10 are by means of connecting screws 1 connected.

The housing part 11 is with the housing part 10 by means of connecting screws 18 connected.

By means of tapped holes 2 screwed fastening screws is a motor housing connectable to the housing part 11 , This also has a centering collar 15 on, the centering a precise connection of the motor housing with the housing part 11 makes executable. In this way, the motor shaft, which is mounted in the motor housing via a roller bearing as a fixed bearing, directly connected to the adapter shaft and thus provides for the adapter shaft storage.

For connection to the motor shaft are threaded pins 14a . 14b provided as a fastener, the initial, ie in a first state in the unactuated position before connecting to the motor shaft, from the threaded hole 21 protrude radially so far that the adapter shaft is held in a form-fitting manner in the housing part 11 , this also a hole 22 or optionally has a threaded hole. In this way, therefore, the adapter shaft is locked in a form-fitting manner.

When connecting with the motor shaft this is inserted into the recess of the adapter shaft. The clamping sleeve 20 then surrounds the motor shaft directly. This clamping sleeve 20 has slots, in particular axial slots on. There will now be a fastener in the form of a first threaded pin 14a . 14b radially further screwed from a first state in the unactuated position to a second state in the actuated position for producing a frictional connection between the motor shaft and the adapter shaft. This screwing in is an operation of the first fastener. The effected by the respective threaded pin positive connection to the housing part 11 going is lost.

At the periphery are at least two setscrews 14a . 14b intended. The threaded pins 14a . 14b are axially in the same position against each other on the circumference of the adapter shaft 13 staggered. Each set screw is a separate recess in the housing part 11 associated with a positive locking of the adapter shaft 13 against twisting and against axial displacement causes. Locking means that a twisting and axial displacement is prevented except for a very small clearance. By doing that, each grub screw 14a . 14b a separate recess in the housing part 11 is assigned by each grub screw 14a . 14b for himself the lock effected. The displacement of the set screws 14a . 14b along the circumference of the adapter shaft 13 by 90 ° - or in further developments to another, non-zero amount, for example by 15 °, 30 °, 45 °, 60 °, 120 ° or 180 ° - causes a secure locking of the adapter shaft 13 , when all screws in the first state, ie in the unactuated position, are arranged.

After the first grub screw 14a until pressing on the sleeve 20 , for example, was designed as a clamping sleeve, was screwed, are now the other screws 14b a screwed. Thus, the positive connection with the housing part 11 completely lost and that of the grub screws 14a . 14b caused adhesion between sleeve 20 and motor shaft is built. When screwing in there is a transitional area where the through a respective grub screw 14a . 14b caused positive closure already lifted and the frictional connection is not yet established. In the 1 is the screwed-in threaded pin 14b in a position in the transition region, ie in an intermediate state. Advantage of using more than one set screw 14a . 14b is there that no impermissibly large displacements of the adapter shaft 13 take place relative to the motor shaft. In other words, the adapter shaft is fixed to the motor shaft in each step of the assembly: First, that is, when the motor shaft is inserted into the adapter shaft and the motor by means of fastening screws 2 on the housing 11 is fixed, through all threaded pin 14a . 14b in the housing part 11 , after screwing in the first set screw 14a . 14b in the transition area by the remaining set screws 14a . 14b in the housing part 11 , after screwing in the first set screw 14a . 14b in the non-positive and thus radially minimal position through this on the sleeve with axial slots 20 and through the remaining setscrews 14a . 14b in the housing part 11 and after screwing in all set screws 14a . 14b in the non-positive position by this on the sleeve with axial slots 20 and thus on the motor shaft. After screwing in all set screws 14a . 14b in the non-positive position is the adapter shaft 13 with the motor shaft freely rotatable and thus fully functional, while the set screws 14a . 14b prevent in their respective starting position, ie the radial maximum position, a rotational movement.

Thus, then the adapter shaft is firmly connected to the motor shaft and freely rotatable in the housing part 11 , A rolling bearing in the housing part 10 or 11 for the adapter shaft 13 therefore completely eliminated. Thus, less heat and noise is generated and there is a speed limiting means less. In addition, this non-existent bearing can not fail. In addition, of course, no bearing seat to produce and thus the production cheaper and easier.

Of the Shaft seal sits on a reduced diameter shoulder and can therefore be operated up to high speeds. Because the Circumferential speed is reduced.

The adapter shaft 13 is stored statically determined.

Of the thermal length compensation the motor shaft is provided because the adapter shaft only in axial Direction is determined only by the motor shaft and the sun gear can move in the axial direction something.

The cap 19 Prevents leakage, possibly due to the press-fit connection between the sun gear 12 and adapter shaft 13 passing lubricating oil.

In a further embodiment of the invention, only a threaded pin is provided for simpler and cheaper construction. In this case, the threaded pin with its length is to be dimensioned such that the transition region is substantially eliminated, that is, the threaded pin when screwing immediately after leaving the housing part 11 a traction between between sleeve 20 and motor shaft builds.

at a further embodiment of the invention three or more than three setscrews are provided.

In a further embodiment of the invention is instead of the threaded pins 14a . 14b and the sleeve 20 a clamping ring is used, which prior to clamping in a circumferential recess of the housing 11 is held positively and is tensioned after insertion of the motor shaft in the recess of the clamping ring for producing the frictional connection between the motor shaft and the adapter shaft. The diameter of the clamping ring is reduced and the positive connection to the housing part 11 gets lost. The adhesion between the waves is but made.

In a further embodiment of the invention, the housing part 11 with the housing part 10 made in one piece.

In a further embodiment of the invention, the housing part 11 executed in several pieces.

1

connecting bolts

2

threaded hole

3

planet

4

needle roller bearings

5

planet shaft

6

planet carrier

7

camp

8th

housing part

9

housing part

10

housing part

11

housing part

12

sun

13

adapter shaft

14a, 14b

Set screw

15

spigot

16

Shaft seal

17

recess

18

connecting bolts

19

cap

20

Sleeve with axial slots

21

threaded hole

22

drilling

Claims (24)

Adapter, comprising a housing part and a driving shaft for receiving a further shaft, characterized in that at least two fastening means are provided, each fastening means is provided in a first state for the positive, rotationally locking and Verschiebungssichernden, in particular axially, locking the driving shaft in the housing part wherein each fastening means is provided in a second state for non-positive connection between the driving shaft and the further shaft, in particular wherein the fastening means are independently operable and thus from the first state via intermediate states in the second state can be transferred. Adapter according to at least one of the preceding Claims, thereby marked that the adapter is designed as a planetary gear is comprising at least one planetary gears and / or planetary gears driving Sun gear, a sun gear driving shaft and a housing part for connection to a gear driving device, as electric motor, internal combustion engine or connected to such a motor Adapter or coupling. Adapter according to at least one of the preceding Claims, characterized in that at least two of the fastening means have a different circumferential angle, ie against each other are arranged offset on the circumference of the driving shaft. Adapter according to at least one of the preceding Claims, characterized in that at least two of the fastening means are provided on axially the same position. Adapter according to at least one of the preceding Claims, characterized in that each fastening means is a separate Recess in the housing part assigned. Planetary gear, comprising one with a sun gear connected driving shaft, the shaft means for receiving another shaft and fastening means for fixing the shaft with the further wave has, characterized in that the Planetary gear is formed on the input side vorkomplettiert, in which the fastening means in each case for fixing the shaft with the other Wave in unconfirmed Position the driving shaft in the housing lock and in actuated Position each shaft with the other wave against rotation and displacement safe connect. Planetary gear according to at least one of the preceding Claims, characterized in that the driving shaft is not in the housing part of the planetary gear is stored. Planetary gear according to at least one of the preceding Claims, characterized in that the driving shaft via the Sun gear and the planet wheels is loosely stored and over at least one bearing of the driving device is fixedly mounted. Planetary gear according to at least one of the preceding Claims, characterized in that each fastening means between the first and the second state has another state, in which the form closure already lifted, the adhesion however not yet made. Planetary gear according to at least one of the preceding claims, characterized in that the fastening means vorgese at least as provided in holes threaded pins hen are in the second state radially screwed further than in the first state. Planetary gear according to at least one of the preceding Claims, characterized in that the threaded pins in the second state the To cause adhesion by deformation of a sleeve, which thereby the shaft of the driving device is tensioned. Planetary gear according to at least one of the preceding Claims, characterized in that the fastening means as in a recess the driving shaft are provided foreseen clamping ring, the In the second state, they have a smaller maximum outer diameter as in the first state. Planetary gear according to at least one of the preceding Claims, thereby marked that the recess is made in such a way that an unclamped clamping ring as a fastener in the first Condition the positive connection of the driving shaft to one of these surrounding housing part manufactures wherein the tensioned clamping ring as a fastener in the second state the adhesion of the driving shaft to the shaft of the driving device. Planetary gear according to at least one of the preceding Claims, characterized in that the driving device is an electric motor and the shaft of the driving device is the rotor shaft thereof. Planetary gear according to at least one of the preceding Claims, characterized in that the input-side shaft seal between Sun and fasteners proceed. Planetary gear according to at least one of the preceding Claims, characterized in that the input-side shaft seal between housing part and driving shaft, wherein the tread of the Shaft seal on the driving shaft on a smaller diameter is provided as the driving shaft further input side having. Planetary gear according to at least one of the preceding Claims, characterized in that the housing part on the input side a centering collar having. Planetary gear according to at least one of the preceding Claims, characterized in that the driving device by means of fastening screws is connectable. Drive, including planetary gear and a this one driving electric motor, characterized in that the planetary gear Eintriebsseitig vorkomplettiert is formed. Drive, including planetary gear and a this one driving electric motor, characterized in that the planetary gear is formed according to at least one of the preceding claims. Method for mounting a first device a second device, both devices each a housing and each comprise a wave, the first device comprises a first and a second fastening means, in which the shaft of the first device means for receiving the shaft of the second wave comprises, characterized in that in a first step, the first and the second fastening means the shaft of the first device in the housing of the first device secure against twisting and shifting, in a second step the shaft of the second device in the means for receiving the first waves introduced becomes, in a third step, the housing of the first device with the housing the second device is firmly connected, in a fourth Step the first fastener is actuated such that its connection with the housing lifted and a twist-and-move secure connection of the Shaft of the first device with the shaft of the second device will be produced, in a fifth step, the second fastening means operated in this way is that its connection with the housing is released. Method according to at least one of the preceding Claims, characterized in that in the fifth step, the second attachment means such actuated is that a twist and verschiebesicher connection of the shaft the first device is made with the shaft of the second device. Method according to at least one of the preceding Claims, characterized in that the second device is an electric motor is. Method according to at least one of the preceding Claims, characterized in that the first and / or second device is a gear or a clutch.