Classifications

• • 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
  • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60G—VEHICLE SUSPENSION ARRANGEMENTS
  • B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
  • B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
  • B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
  • B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
  • B60G21/055—Stabiliser bars
  • B60G21/0551—Mounting means therefor
  • B60G21/0553—Mounting means therefor adjustable
  • B60G21/0555—Mounting means therefor adjustable including an actuator inducing vehicle roll
• • 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
  • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
  • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
  • F16H37/04—Combinations of toothed gearings only
  • F16H37/041—Combinations of toothed gearings only for conveying rotary motion with constant gear ratio
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
  • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
  • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60G—VEHICLE SUSPENSION ARRANGEMENTS
  • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
  • B60G2202/40—Type of actuator
  • B60G2202/42—Electric actuator
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60G—VEHICLE SUSPENSION ARRANGEMENTS
  • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
  • B60G2204/62—Adjustable continuously, e.g. during driving
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60G—VEHICLE SUSPENSION ARRANGEMENTS
  • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
  • B60G2204/80—Interactive suspensions; arrangement affecting more than one suspension unit
  • B60G2204/82—Interactive suspensions; arrangement affecting more than one suspension unit left and right unit on same axle
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60G—VEHICLE SUSPENSION ARRANGEMENTS
  • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
  • B60G2204/80—Interactive suspensions; arrangement affecting more than one suspension unit
  • B60G2204/83—Type of interconnection
  • B60G2204/8302—Mechanical
• • 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
  • F16H1/00—Toothed gearings for conveying rotary motion
  • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
• • 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
  • F16H1/00—Toothed gearings for conveying rotary motion
  • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
  • F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
• • 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
  • F16H1/00—Toothed gearings for conveying rotary motion
  • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
  • F16H2001/2881—Toothed gearings for conveying rotary motion with gears having orbital motion comprising two axially spaced central gears, i.e. ring or sun gear, engaged by at least one common orbital gear wherein one of the central gears is forming the output
• • 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
  • F16H49/00—Other gearings
  • F16H49/001—Wave gearings, e.g. harmonic drive transmissions
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T74/00—Machine element or mechanism
  • Y10T74/19—Gearing
  • Y10T74/19642—Directly cooperating gears
  • Y10T74/19647—Parallel axes or shafts

Definitions

• the invention relates to an actuator for generating a rotary actuating movement according to the preamble of patent claim 1.
• actuators are frequently used in vehicles, which are actuated systemically or by the vehicle driver.
• actuators can adjust a vehicle seat, provide support for the steering force or make a level adjustment of the chassis to the speed of travel.
• the energy required for this purpose is usually provided in electrical, hydraulic or pneumatic form available, with electrically operated actuators due to the simple transmission of electrical energy from the power source to the actuator can be inexpensively positioned at approximately anywhere in the vehicle.
• electrical energy source such as a generator or a battery, which makes electrical actuators easier to integrate with existing vehicle systems as compared to pneumatic or hydraulic ones.
• Electric actuators for generating a rotary actuating movement have in addition to an electric motor usually a reduction gear, which reduces the voltage applied to the output shaft of the electric motor rotational speed to a desired level or increases a torque applied by the electric motor.
• a reduction gear which reduces the voltage applied to the output shaft of the electric motor rotational speed to a desired level or increases a torque applied by the electric motor.
• EP 1 627 757 A1 discloses an electrically operated actuator for producing a rotary actuating movement between the halves of a vehicle stabilizer, wherein the actuator consists of a brushless electric motor, a reduction gear and a housing which surrounds the electric motor and the reduction gear.
• a reduction gear a two-stage planetary gear or a single-stage wave gear (also known as Harmony Drive) is disclosed.
• Single or multi-stage planetary gear have for this purpose a plurality of rotating elements, which increase the speed of the reduction gear due to the complexity and reduce the actuating speed due to the high inertia.
• a wave gear is this less complex and has due to the lower inertia on a higher actuating speed to achieve the required ratios at a high efficiency and high transmission powers, their space is compared to successively arranged planetary gears less compact, ie it has a comparatively large outer diameter. For the cramped installation conditions in a vehicle, a reduction gear from a single-stage wave gear can therefore be unfavorable.
• the object of the invention is thus to provide an actuator for generating a rotary actuating movement, which is well suited for the cramped installation conditions in a vehicle and thereby has a high actuating speed. It is achieved according to the features of the first claim. Further embodiments emerge from the subclaims.
• an actuator for generating a rotary actuating movement on an electric motor and a reduction gear, which is in communication with an output member of the engine.
• the reduction gear according to the invention is designed so that it is not self-locking. Since a single transmission gear type corrugated, cycloid or wobble gear with the required to generate the required torque translation in diameter is relatively large, has no acceptable efficiency and experience is self-locking and pure stage, planetary or Wolfromgetriebe too large an inertia have, the reduction gear of the actuator according to the invention consists of two groups of components.
• the first assembly comprises a single-stage corrugated, cycloid or wobble gear and the second assembly a single or multi-stage planetary, stepped or Wolfromgetriebe.
• the two modules are interconnected in such a way that the required overall translation results in a high efficiency and a compact space and at the same time the reduction gear is not self-locking.
• the reduction gear has a lower complexity and inertia, whereby the peak current consumption of the electric motor decreases. This can thus be made smaller, which allows a further reduction of the required installation space.
• An embodiment of the invention provides to arrange the first assembly between the electric motor and the second assembly, whereby the first assembly, ie, the corrugated, cycloid or wobble gear, is arranged on the torque weaker side of the reduction gear. Since thus reduces the voltage applied to the first assembly torque, it can be made very compact, ie the diameter of the first assembly can be significantly reduced. It is particularly advantageous if the ratio of the first assembly is less than 1:40, since higher ratios in practice lead to less favorable efficiencies and self-locking.
• the second assembly comprises at least one planet carrier, at least one sun gear and optionally at least one ring gear, wherein one of the planet carrier or one of the ring gears as preferred output element of the reduction gear is used, at which the rotational movement can be tapped.
• a preferred application of the actuator according to the invention provides to use it as part of a stabilized for roll stabilization or level control in two parts and electromechanically adjustable vehicle stabilizer.
• a single actuator according to the invention between the two parts of the vehicle stabilizer interposed, whereby he can rotate the two parts in a roll the two parts against each other so that they cause a rolling motion of the vehicle in the opposite direction, which attenuates or eliminates the rolling motion.
• a first part of the vehicle stabilizer is fixedly connected to the output element of the reduction gear of the actuator and a second part of the vehicle stabilizer with the housing of the actuator.
• an actuator according to the invention is rotatably connected to both a vehicle body, as well as with at least one of the parts of the vehicle stabilizer, whereby the actuator can lift the vehicle body on both sides or on the side of the vehicle operatively connected to the connected part of the stabilizer on a rotary actuator ,
• two actuators according to the invention can each be connected to one part of the vehicle stabilizer and can be electronically or mechanically coupled to one another such that the actuators for level control generate a rectified rotational movement of the two stabilizer parts relative to the vehicle body.
• only one actuator according to the invention can be connected to both parts of the stabilizer in such a way that it rotates both parts relative to the vehicle body by means of a rotary actuating movement.
• the latter serves to reinforce the steering force applied by a driver to change the direction of travel.
• the output element of the actuator with a push rod of the steering such as a steering or tie rod, mechanically coupled and brings in carrying out a steering movement by the driver on a direction of the steering force directed to the push rod.
• the necessary conversion of the rotational adjustment movement of the actuator in a linear movement of the push rod can be done for example via a lever and two joints or a spindle nut and a spindle.
• the force applied by the actuator force can also be adapted to the current vehicle speed or to the steering force applied by the driver by the performance of the electric motor of the actuator is controlled by sensors.
• the actuator according to the invention can be used beyond the examples described in a variety of applications where a rotary actuator movement is required.
• the use of the actuator in a cable winch may be mentioned here, where the actuator serves as a compact motor-gear unit to pick up or extend a winch cable under load.
• the reduction gear of the actuator is not self-locking and at the same time has a high gear ratio and good efficiency, which on the one hand the winch rope can be unwound under train from the winch without the electric motor must generate kinetic energy, on the other hand, even at a low engine power high loads can be moved.
• the reduction gear may consist partly or completely of plastic for reasons of weight and cost savings , If necessary, the rotary actuator movement
• the actuator should be executed very accurately or should be measured very accurately, it can also have an integrated angle encoder, which can be located directly on the electric motor, between the electric motor and the reduction gear, in the reduction gear or on the output element of the reduction gear.
• Figure 1 shows an actuator according to the invention with a wave gear and a two-stage planetary gear.
• FIG. 2 shows an actuator according to the invention with a wave gear and a single-stage Wolfrom transmission in modular design.
• Fig. 3 shows an actuator according to the invention of an electromechanically adjustable vehicle stabilizer with a wave gear and a single-stage Wolfromgetriebe.
• the illustrated in Fig. 1 actuator for rotary actuating movement comprises an electric motor 1 and a reduction gear 2, which are housed in a common housing 3.
• the reduction gear 2 is composed of two assemblies 4, 5, wherein the first assembly 4 consists of a known wave gear with a wave generator 6, a flexible wheel 7 and a rigid wheel 8 and the second assembly 5 of a known two-stage planetary gear with two sun gears 9, 10, two planet carriers 11, 12, two ring gears 13, 14 and at least two planetary gears 15, 16 consists.
• the motor output shaft 18 fastened to the rotor 17 of the electric motor 1 drives the wave generator 6 of the wave gear to generate the rotary actuating movement, said shaft generator being connected on the basis of a difference in the number of teeth.
• the flexible wheel 7 in this case forms the output element of the wave gear, which in turn acts on the first sun gear 9 of the two-stage planetary gear.
• This moves the first planet gears 15 carried by the first planet carrier 11 along the first ring gear 13, causing the first planet carrier 11 to rotate. It in turn serves as an output element of the first planetary gear and drives the second sun gear 10, which moves the second planet gears 16 along the second ring gear 14.
• the movements of the second planet gears 16 generate the rotational movement of the second planetary carrier 12 used as the output element of the reduction gear, which is non-rotatably connected to a lever 19 projecting from the actuator.
• the rotary actuating movement can be tapped, wherein the output element of the reduction gear may alternatively be connected to a ball nut or a pinion, which can also be used to convert the rotary actuating movement in a linear actuating movement.
• the actuator shown in FIG. 2 has, in addition to the electric motor 1, a reduction gear 2 consisting of a wave gear and a single-stage Wolfrom gear.
• the entire actuator is constructed in modular construction, wherein the electric motor 1, the first assembly 4, consisting of the wave gear and the second assembly 5, consisting of the Wolfrom transmission, as well as the output element of the actuator each form a module.
• the actuator can therefore be modularly adapted to the specific conditions of use, for example, by a more powerful electric motor 1 or a higher translating or more sustainable second assembly 5.
• a simple replacement of faulty or damaged modules is possible.
• the individual assemblies 4, 5 are connected to one another by couplings 20, for example jaw clutches, which permit random rearrangement of the modules, in particular of the modules of the assemblies 4, 5.
• the first assembly may consist of one module with a corrugated, cycloid or wobble gear and the second Assembly of a successively arranged first module with a single-stage planetary gear and a second module with a two-stage step transmission.
• the first assembly may consist of one module with a corrugated, cycloid or wobble gear
• the second Assembly of a successively arranged first module with a single-stage planetary gear and a second module with a two-stage step transmission.
• the first assembly 4 shown in Fig. 2 consists, corresponding to the first assembly 4 of FIG. 1, of the wave generator 6 as an input element, a rigid wheel 8 and a flexible wheel 7 as an output element.
• the wave generator 6 is connected via the coupling 20 with the motor output shaft 18.
• the flexible wheel 7 is in turn connected via a further coupling 20 with a serving as input element of the Wolfromgetriebes sun gear 21 which moves at a rotational movement at least one planetary gear 22 along a first stationary ring gear 23.
• the planet gear 22 in turn rotates on the rotatably mounted on the sun gear 21 planet carrier 24 and drives a rotatably mounted in the housing 3 second ring gear 25, wherein the rotational movement of the planet gear 22 about its own axis and the rotational movement of the planet carrier 24 about the axis of the sun gear 21 to the rotation of the second ring gear 25 overlap.
• the second ring gear 25 serves as an output element of the reduction gear 2 and is connected by means of a third clutch 20 with the output element of the actuator, which is exemplified as a mounted in a housing 3 lever 26.
• FIG. 3 shows a variation of the actuator according to the invention shown in FIG. 2, which is suitable for use in an adjustable vehicle stabilizer.
• the transmission scheme of the reduction gear 2 corresponds fully to that of the actuator of Fig. 2.
• the two stabilizer parts 27, 28 should have the same or similar spring characteristics as a one-piece non-adjustable vehicle stabilizer, so they must be arranged as close to each other.
• the output element of the actuator here forms the second ring gear 25 of the Wolfromgetriebes, which is fixedly connected to the first stabilizer part 27. This is guided along the longitudinal axis of the actuator by the two modules 4,5, the couplings 20 and the output shaft 18, and the rotor 17 of the electric motor 1 from the housing 3.
• the second stabilizer part 28, however, is fixedly connected to the side of the housing 3, which is opposite the exit point of the first stabilizer part 27 from the housing, whereby it is achieved that the ends of the stabilizer parts 27, 28 are very close to each other and thus the common Length of the stabilizer parts 27, 28 corresponds approximately to the length of a one-piece stabilizer.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Power Engineering (AREA)
• Retarders (AREA)
• Vehicle Body Suspensions (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=39111471

Family Applications (1)

Country Status (3)

Cited By (10)

Families Citing this family (26)

Citations (3)

Family Cites Families (13)

• 2006
  • 2006-12-09 DE DE102006058133A patent/DE102006058133A1/de not_active Withdrawn
• 2007
  • 2007-12-03 US US12/517,363 patent/US20100072725A1/en not_active Abandoned
  • 2007-12-03 WO PCT/EP2007/063112 patent/WO2008068207A1/de active Application Filing

Patent Citations (3)

Non-Patent Citations (1)

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