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
  • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
  • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
  • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
  • F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
  • F16F15/0235—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means where a rotating member is in contact with fluid
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60G—VEHICLE SUSPENSION ARRANGEMENTS
  • B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
  • B60G13/02—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally
  • B60G13/06—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally of fluid type
  • B60G13/08—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60G—VEHICLE SUSPENSION ARRANGEMENTS
  • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
  • B60G17/06—Characteristics of dampers, e.g. mechanical dampers
  • B60G17/08—Characteristics of fluid dampers
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
  • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
  • F04C11/001—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of similar working principle
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
  • F04C2/00—Rotary-piston machines or pumps
  • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
  • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
  • F04C2/101—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with a crescent-shaped filler element, located between the inner and outer intermeshing members
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
  • F04C2/00—Rotary-piston machines or pumps
  • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
  • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
  • F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
  • F04C2/00—Rotary-piston machines or pumps
  • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
  • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
  • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
• • 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
  • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
  • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
  • F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
• • 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
  • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
  • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
  • F16F9/32—Details
  • F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
  • F16F9/532—Electrorheological [ER] fluid dampers
• • 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
  • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
  • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
  • F16F9/32—Details
  • F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
  • F16F9/535—Magnetorheological [MR] fluid dampers
• • 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
  • B60G2202/20—Type of damper
  • B60G2202/22—Rotary Damper
• • 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
  • B60G2202/424—Electric actuator electrostrictive materials, e.g. piezoelectric actuator
• • 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
  • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
  • F16F2232/00—Nature of movement
  • F16F2232/06—Translation-to-rotary conversion

Definitions

• the present invention relates to a rotary damper for a vehicle for damping relative movement according to the closer defined in the preamble of claim 1.
• a rotary damper which consists of an inner, fixed part and a relatively rotatable outer part to this, which is connected to a lever for initiating the rotation.
• a frictional clutch in the form of a multi-plate clutch is arranged, the fins are fixedly connected alternately with the two parts.
• the outer part is fixed in the region of the lever to a first member of a spindle gear, which is rotatably movable with balls on a second member and thereby performs an axial movement corresponding to a slope of the second member.
• the present invention is based on the object to propose a rotary damper, which has a very compact design.
• a rotary damper is preferably proposed for a vehicle for damping relative motion between vehicle wheels and vehicle body, which has at least one gear stage with a plurality of components or gear wheels in operative connection, by means of which they are rotated.
• media eg hydraulic fluid
• hydraulically hydrodynamic, hydrostatic or rheological damping acts on the movement.
• the rotational movement and thus also a transmitted for example via a transmission or the like relative movement can be hydraulically damped at will.
• the vertical movement is converted into a pivotal movement, wherein the pivotal movement is translated into a faster rotational movement through the gear stage.
• at least one integrated in the gear stage hydraulic pump is provided, for example, by shorting the suction side and pressure side, a corresponding hydraulic damping can be achieved.
• the short-circuiting can be done for example via a throttle or via an electrically operated proportional valve or the like, which is opened depending on the desired degree of damping or completely closed.
• the short-circuiting is achieved by an approximately dense housing without inflow and outflow and the throttle results from the leakage. This is particularly advantageous if the proposed rotary damper is to generate maximum damping over most of the operating time.
• At least one electric machine is connected to the rotary damper for additional damping or for actively controlling the damping.
• a permanent magnet synchronous machine PSM
• the electric machine can advantageously be closed via controllable resistors short or operated as a generator. It is also conceivable that the electric machine is operated by a motor, in order to enable an active control of, for example, the vehicle body or the vehicle wheel movement.
• the advantage of the proposed rotational damper is that a passive basic damping can be superimposed on the electrically or electrically operated passive machine via the hydraulic pump integrated in the gear stage. This makes it possible to absorb overloads, abuse loads or the like, which are not covered in known active dampers or only with very high design effort.
• gear stage one or more of the following gear stages, such as the gear stage, may be used.
• a spur gear stage, a planetary gear stage, a cycloid drive stage or the like are combined with each other.
• at least one gear pump, a gerotor pump, a sickle pump, a gerotor pump or the like can be used as the hydraulic pump.
• rotary piston, reversing piston, rotary piston, vane pumps or the like design can be used.
• two mutually electrically insulated electrodes of different polarity or the like are provided on the front-side housing of the gear stage.
• an electro-rheological fluid EMF or ERP
• the viscosity of which can be varied by the electric field between the electrodes arranged to influence the damping in addition or as an alternative to the valve or the throttle.
• a magneto-rheological fluid can be used whose viscosity in the lines or in the pump chamber can be changed by a magnetic field.
• the viscosity is directly influenced in the hydraulic pump, for example by the fluid in the pump chambers being poled in opposite directions by a magnetic flux, for example.
• the pump chambers can be in magnetic operative connection with the pole shoes of the electric machine in such a way that the coils located in the electric machine cause the magnetic polarity of the pump chambers.
• the proposed rotational damper can be used according to a next development of the invention for driving either a centralized or multiple decentralized control unit or the like, which are, for example, in communication with the in-vehicle data bus system or the like.
• the standard signals available on the vehicle include acceleration sensors on the wheel and on the vehicle body, or generally on the masses to be damped.
• the sensors measure accelerations in the direction of the movements to be damped.
• On the vehicle body at least one, advantageously several sensors are provided to detect all modal degrees of freedom.
• at least one sensor can be arranged on the rotary damper, whereby additional cable connections can be saved.
• a temperature sensor may be provided in each partially active rotary damper. This can be used to monitor the safety of the electrical machine and at the same time take into account the temperature-dependent viscosity of the hydraulic medium in the hydraulic pump.
• the proposed rotary damper can preferably be used for damping relative movements between vehicle wheels and vehicle body. But there are also other purposes, for example, in other machines, structures or the like conceivable.
• FIG. 1 shows a schematic view of a first embodiment of a rotary damper according to the invention with a gear pump integrated in a gear stage;
• Figure 2 is a schematic view of another embodiment of the rotary damper with two integrated in a gear stage sickle pumps
• Figure 3 is a schematic view of the embodiment shown in Figure 2;
• Figure 4 is a schematic view of a next embodiment of the rotary damper with a plurality of integrated in a planetary gear stage gear pumps;
• Figure 5 is another schematic view of the embodiment according to Figure 4.
• FIG. 6 shows a further embodiment variant of the rotary damper with a gerotor pump integrated into a cycloidal gear stage.
• FIG. 1 shows a first embodiment of a rotary damper according to the invention is shown in which the gear stage designed as a spur gear and so enclosed by a housing 1, that at the same time designed as a gear pump with a corresponding pump chamber 2 hydraulic pump is provided.
• the gear pump has a suction side 3 and a pressure side 4.
• the suction side 3 and the pressure side 4 are short-circuited via a line 5, which is provided with an adjustable throttle 6 and a valve to adjust the hydraulic damping accordingly.
• the relative movement, for example, between vehicle wheels and vehicle body is converted by a lever 7 not shown in a rotational movement of a first spur gear 8 of the spur gear.
• the first spur gear 8 is in engagement with a smaller second spur gear 9, so that the rotational movement of the first spur gear 8 is translated into a faster rotational movement of the second spur gear 9.
• On the shaft of the second spur gear 9 there is additionally an electric machine 1 0, not shown, with which the hydraulic damping can additionally be activated.
• a multi-speed transmission which simultaneously forms a plurality of hydraulic pumps.
• the hydraulic pumps can be connected to one another in such a way that a hydraulic circuit with the same flow directions is fed by a control valve which determines the degree of damping. Right. It is also possible that the pressure sides of the pumps are connected together to increase the short-circuiting effect.
• FIG. 2 shows a further embodiment of the rotary damper with several gear stages.
• the gear stages form several nested sickle pumps.
• a two-stage transmission with two sickle pumps is provided.
• the relative movement to be damped is introduced as a rotational movement via a ring gear 1 1, which together with a toothed ring 12 form the first sickle pump or the first gear pump, wherein the toothed ring 12 is arranged eccentrically relative to the ring gear 1 1.
• the internal toothing of the ring gear 1 1 is engaged with the external toothing of the toothed ring 12 for forming a first sickle-shaped pump chamber 2 A in engagement or in operative connection.
• a second sickle pump between the toothed ring 12 and a concentric with the ring gear 1 1 arranged spur gear 13 is formed, wherein the internal toothing of the toothed ring 12 with the external toothing of the spur gear 13 for forming a second sickle-shaped pump chamber 2B is engaged or in operative connection.
• the spur gear 13 drives the electric machine 10 in order to realize an active activation of the damping.
• This type of rotary damper has front seals and / or flow channels z. B. with adjustable cross-section between the wheels and the housing.
• FIG. 3 shows a schematic view of the embodiment variant of the rotary damper shown in FIG. 2, in which, for example, a planetary gear stage 14 is preceded by the gear stages forming the sickle pumps.
• the lever 7 is connected to a ring gear 15 of the planetary gear stage 14, wherein the planet carrier 1 6 is supported on the housing 1.
• the sun gear 17 is connected to the ring gear 1 1 of the first sickle pump.
• the spur gear 13 of the hydraulic pumps forming gear stages is connected to the electric machine 10.
• hydraulic pumps in addition to the sickle pumps and gear gerotor pumps or the like can be used.
• FIG. 4 An alternative embodiment of the rotary damper is shown in Figures 4 and 5.
• This is an integration of several teeth wheel pumps in a special planetary gear stage 14A, which acting as gear pumps additional or further planetary gears 19 are arranged in the planetary gear stage 14A.
• the other planetary gears 19 are likewise mounted on the planetary gear carrier 16A and likewise engage with the ring gear 15A of the planetary gear stage.
• the planet carrier 1 6A is designed such that in each case a pump space 20 is formed around the other planet gears 19, each having a pressure side and a suction side.
• flow channels 21 are provided at the front and at the back, which are indicated in Figure 5, for example, for the suction side of the pump chambers 20.
• Corresponding channels for the pressure side are then either on the back or front of the planet carrier 1 6A.
• the channels 21 open into an annular channel 22 which communicates via an axial passage 23 with the corresponding annular channel of the printed pages in combination.
• a controllable valve or a throttle are provided.
• annular channel 22 is larger in diameter than the shaft for the gear 17A, which leads through the planet carrier 1 6A.
• FIG. 1 Another alternative embodiment of the proposed rotary damper is indicated in FIG. This is a gear stage designed as a cycloidal gear in which a gerotor pump is integrated.
• rotary piston, reversing piston, rotary piston, vane pumps or the like can be used.
• a ring gear 1 1 A provided with internal toothing, which is in engagement with a toothed ring 12A.
• the internal toothing of the toothed ring 12A engages with a spur gear 13A formed as a kind of sun gear in order to for example, to drive the electric machine 10.
• the ring gear 1 1 A is rotated by the relative movement of the lever 7 in rotation.
• Regardless of the design variants may optionally be arranged in front of or behind or between the at least one hydraulic pump, a further gear stage without hydraulic pump function.
• the electrical machine 10 may be connected to protect against overloads, for example via a slip clutch or the like with the last gear stage. After the rotor of the electric machine 10 further translation stages or hydraulic pumps can follow.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Acoustics & Sound (AREA)
• Aviation & Aerospace Engineering (AREA)
• Rotary Pumps (AREA)
• Details And Applications Of Rotary Liquid Pumps (AREA)
• Vehicle Body Suspensions (AREA)
• Fluid-Damping Devices (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=50033549

Family Applications (1)

Country Status (6)

Families Citing this family (16)

Family Cites Families (18)

• 2013
  • 2013-02-28 DE DE102013203331.1A patent/DE102013203331A1/de not_active Withdrawn
• 2014
  • 2014-02-03 JP JP2015559449A patent/JP2016515965A/ja active Pending
  • 2014-02-03 WO PCT/EP2014/052005 patent/WO2014131574A1/de active Application Filing
  • 2014-02-03 US US14/770,950 patent/US20160009158A1/en not_active Abandoned
  • 2014-02-03 EP EP14702574.6A patent/EP2961986A1/de not_active Withdrawn
  • 2014-02-03 CN CN201480010989.2A patent/CN105026762A/zh active Pending

Non-Patent Citations (1)

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