EP3259832A2 - Adjustment unit - Google Patents
Adjustment unitInfo
- Publication number
- EP3259832A2 EP3259832A2 EP16704817.2A EP16704817A EP3259832A2 EP 3259832 A2 EP3259832 A2 EP 3259832A2 EP 16704817 A EP16704817 A EP 16704817A EP 3259832 A2 EP3259832 A2 EP 3259832A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- stator
- actuating
- unit according
- actuating element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 44
- 238000006073 displacement reaction Methods 0.000 claims abstract description 19
- 238000004804 winding Methods 0.000 claims description 15
- 239000002131 composite material Substances 0.000 claims description 11
- 230000008859 change Effects 0.000 claims description 7
- 230000008901 benefit Effects 0.000 description 13
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Classifications
-
- 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
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
- H02K21/227—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos having an annular armature coil
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
- F16D65/183—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes with force-transmitting members arranged side by side acting on a spot type force-applying member
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/02—Synchronous motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
- H02K21/145—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having an annular armature coil
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
- H02K37/10—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type
- H02K37/12—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
- H02K37/24—Structural association with auxiliary mechanical devices
-
- 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
- H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
-
- 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
- H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
- H02K7/1021—Magnetically influenced friction brakes
-
- 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
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/38—Slack adjusters
- F16D2065/386—Slack adjusters driven electrically
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
- H02K37/10—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type
Definitions
- the present invention relates to an adjusting unit, in particular for use in a commercial vehicle brake.
- Adjustment units for use in commercial vehicle brakes are known from the prior art.
- mechanical elements are provided, with which the adjusting unit adapts the brake system to a wear of the friction linings.
- the adjusting devices serve to keep the distance covered by the brake shoes or brake pads low when initiating a braking operation and thus also to be able to keep the reaction time of the brake system as low as possible.
- So far adjusting units are designed as purely mechanically operated systems, for example, a spring element or a combination of different spring elements with a coupling region allows a gradual readjustment of the brake system.
- the adjustment units known from the prior art are error-prone, expensive to produce, require too much space and have too high a weight.
- the object of the present invention is to provide an adjusting unit which is simple to manufacture, reliable, space-saving and lightweight.
- the adjusting unit comprises a stator and a rotor, wherein the stator and / or the rotor has a coil arrangement, wherein the rotor is mounted rotatably about an actuating axis to the stator and the stator is secured against rotation about the actuating axis relative to a base body, wherein in the Coil arrangement, a magnetic field is generated which rotates the rotor relative to the stator, wherein the rotor is in engagement with a first actuating element such that a rotation of the rotor relative to the actuating element causes a displacement of the actuating element relative to the rotor along the actuating axis.
- the adjusting unit is preferably a subsystem of a brake system of a motor vehicle, particularly preferably a commercial vehicle.
- the adjusting unit at least two relatively rotatable or rotatable elements are provided, a stator and a rotor.
- the adjusting unit has a coil arrangement which is designed to generate a magnetic field, which can act a torque between the rotor and the stator.
- the combination of stator and rotor thus functions as an electric motor, which generates a torque that causes a rotation of the rotor relative to the stator.
- the rotor is engaged with a first transmission portion such that rotation of the rotor relative to the stator results in displacement of the first transmission portion relative to the stator.
- the first transmission section can be an end face of the rotor, which is designed such that it can transmit an actuation force of a brake to, for example, a jaw element.
- the first transmission section intersects or lies on the actuating axis.
- the engagement between the rotor and the first transmission section also be indirect, so that, for example, a further element, or another portion between the transmission section and the rotor is arranged, which triggers a displacement movement along the actuating axis between the rotor and the first transmission section.
- the first transmission section can be screwed out of the stator relative to the stator either directly via the rotor or indirectly via another intermediate element or screwed into it.
- the adjustment unit can preferably be integrated into existing disc brakes or drum brake systems.
- the power transmission piston of an expanding wedge brake can preferably be replaced by an adjusting unit in the sense of the present invention.
- the stator preferably has the same outer dimensions, advantageously the same outer diameter, as the power transmission piston of a conventional expanding wedge drum brake.
- a conventional disc brake can be the power transmission member, which the braking force from an operating unit such as a brake cylinder or a lever connected thereto to the brake shoes transmits, set by an adjusting unit consisting of at least one stator and a rotor and a transmission section in the context of the present invention.
- the adjustment takes over in addition to the compensation of the wear of the brake pads and the compensation of the wear of the brake disc or the brake drum.
- the adjusting unit in addition to the adjustment and the function of the provision is taken over by the adjusting unit.
- the arrangement of the stator and the rotor acting as a motor can act in both directions of rotation.
- the provision can be achieved by rotation of the rotor and the stator such that the rotor is screwed into the stator or in an additional element.
- the adjusting unit preferably also serves for a drum brake the system-related disadvantage that expands the drum during braking and cools after braking again contracts to compensate.
- the brake system of the commercial vehicle depending on the temperature of the brake drum make an adjustment or a provision to the adjustment by simply one of the two rotational directions between the rotor and stator is selected. By doing so, the hot running of the brake system can be prevented, which occurred in a conventional, path-controlled adjustment, if adjusted too much.
- the stator and the rotor are at least partially, preferably for the most part, arranged within a space spanned by the base body.
- the main body is preferably a part of a housing of a caliper or an expanding wedge unit of a drum brake.
- the base body with advantage to a recess in which the stator is arranged and preferably secured against displacement transversely to the actuating axis.
- engaging means are provided in the recess on the base body, which secure the stator against rotation about the actuating axis and at the same time allow a displacement of the stator along the actuating axis relative to the base body.
- stator and the rotor are arranged at least partially within the base body and thus within the recess of the base body.
- the adjustment unit in the sense of the present invention requires no external, in other words outside of the housing or the base body components.
- drive elements such as mechanical or electrical drives and transmission shafts outside the housing of a caliper or a Sp Schwarzkeiliser are arranged and transmitted via waves a force in the actual adjustment.
- the body also provides protection against the ingress of dirt and foreign bodies in the composite of stator and rotor.
- corresponding sealing elements between the base body and the stator or between the main body and the rotor may be provided.
- the stator and the rotor for the most part, that is, in other words preferably arranged with at least 50 percent, more preferably with at least 80 percent of their extension along the actuating axis within a space spanned by the body.
- the stator and the rotor are arranged completely within the main body. It is possible in this way to fully secure the adjusting unit against the ingress of dirt and foreign bodies and at the same time to achieve the maximum space savings due to a very compact design.
- the rotor is arranged predominantly within a space defined by the stator.
- the rotor is thus arranged in a recess of the stator, wherein in a particularly preferred case, at least half of the extension of the rotor is arranged along the actuating axis within this recess of the stator. It can be not only by the arrangement of the stator and the rotor within the body, but also by the particularly compact design of the composite of stator and rotor a particularly compact design of Reach adjustment unit.
- the volume defined by the outer geometry of the stator is preferably defined as the space defined by the stator.
- the volume spanned by the base body is, in other words, the volume enclosed by the outer dimensions of the base body.
- At least one second coil arrangement or a permanent magnet on the respective other unit is required in addition to the coil arrangement, which is provided either on the rotor or on the stator.
- the rotor has a permanent magnet.
- the advantage of a permanent magnet on the rotor is that it does not have to be supplied with an electrical voltage and thus no sliding contacts for supplying a voltage or for generating an electric current in coils on the rotor are required.
- a permanent magnet offers the advantage that the rotor can be designed particularly simply and there must be no sliding contact and thus no wear in the area between the rotor and the stator.
- the rotor and the stator with the coil arrangement and a permanent magnet or with two coil arrangements form a stepping motor, wherein the coil arrangement has at least four windings distributed around the actuation axis.
- the stepping motor uses a principle known from the prior art in which a motor with a specific number of individual coils or windings, by applying a voltage in one or a specific selection of windings, determines a specific rotation step with a precisely defined one Angle performs.
- the element arranged on the rotor, permanent magnet or second coil arrangement preferably also has a multipart design.
- a permanent magnet is divided into at least two parts.
- the second coil arrangement arranged on the rotor has at least two windings.
- the stator has a second transmission section, wherein an actuation force of an actuating unit acting along the actuation axis is receivable on the first transmission section or the second transmission section and can be transmitted to a jaw element in the other of the sections, first or second transmission section.
- the second transfer section is preferably an end face of the stator with respect to its extension along the actuation axis.
- the second transmission section advantageously has, for example, a hardened surface which is able to absorb high forces with simultaneously low wear and low friction from an actuating unit or to deliver them to a jaw element.
- the second transfer section in which a linkage of a brake cylinder acts on the second transfer section in order to transfer the force of the brake cylinder to the brake shoe arrangement of a disc brake caliper, the second transfer section preferably has a concave depression into which the rod and can be secured against slipping out of the engagement area between the stator and the linkage.
- the first transmission section is part of an actuating element, wherein the actuating element is rotatably mounted to the rotor and is engaged via a thread with the rotor.
- the actuating element is rotatably mounted to the rotor and is engaged via a thread with the rotor.
- an actuation element is provided which extends over a thread is engaged with the rotor. It can be achieved in this way, a rotational movement of the rotor relative to the stator in a longitudinal movement of the actuating element relative to the actuating axis.
- the first transmission section is preferably the end face of the actuating element relative to the actuating axis.
- a rotation of the rotor about the actuating axis relative to the actuating element causes a change in the extension of the composite of actuating element, rotor and stator along the actuating axis.
- a thread between the rotor and the actuating element is advantageously arranged, which relative to the rotation of the rotor the actuator causes a lateral displacement along the actuating axis between the rotor and actuator.
- the rotor is secured against displacement along the actuating axis relative to the stator.
- the rotor in particular to keep the coil arrangement on the stator and the second coil arrangement provided on the rotor or the second coil arrangement provided on the rotor or the permanent magnet provided on the rotor constant.
- a snap ring may be provided, which engages the rotor and this secures against displacement relative to the stator along the actuating axis. In this way, the efficiency of the electric drive can be increased by the coil arrangement.
- the actuating element has a securing portion, which is provided with a rotation preventing element on the base body side or with a backside side
- Anti-rotation is engaged to secure the actuator against rotation to the actuating axis relative to the body and / or relative to a jaw member.
- a securing section is preferably provided, which engages either with a base-side anti-rotation device which is arranged on the base body or with a back-side anti-rotation device which is provided on a jaw element stands.
- the base-side rotation can advantageously be a projection which engages in a preferably designed as a groove on the actuating element Sich ceremoniessab- cut and while permitting a displacement of the actuating element along the actuating axis, but prevents rotation of the actuating element about the actuating axis relative to the base body.
- the actuating element preferably has a groove or a corresponding engagement geometry in the region of the first transmission section, which engages with a jaw element, in order to again prevent a rotation of the actuating element relative to the jaw element. In this case, in particular prevents it to rotation of the actuating element relative to Jaw member comes and thus takes place on the superimposed surfaces of the jaw member and the first transfer section.
- the actuating element has an actuating bolt, which engages with an external thread in an internal thread on a rotor recess of the rotor.
- the engagement region of the rotor is thus designed as a recess with an internal thread into which a section of the actuating element designed as an actuating bolt engages, preferably is screwed in.
- the advantage of this embodiment is that the coil arrangement arranged with advantage on the outer surface of the rotor or the permanent magnet arranged on the outer surface of the rotor acts with a larger lever arm about the actuation axis than the internal thread on the rotor recess and thus a higher circumferential force in the region of the thread between rotor and actuator pin is achieved.
- the actuating element has an actuating recess with an internal thread, which engages in an external thread of a rotor pin of the rotor.
- the actuating element has an actuating recess with an internal thread into which the rotor is screwed.
- the depth of cut of the thread can be kept smaller than is the case in the previously described alternative embodiment of the actuating element with actuating bolt, whereby the production cost of the adjusting unit reduces with advantage.
- This higher transferable force between the actuator and rotor is bought in the present case by a slightly larger size of the composite of actuator and rotor.
- the appropriate design of the connection region between the actuating element and the rotor can be selected.
- the coil arrangement surrounds the rotor at least regionally and has a mean coil diameter, wherein the engagement region between the rotor and the actuating element has a mean engagement diameter, wherein the average engagement diameter at most 0.8 times, preferably at most 0.6 times and most preferably is about 0.3 to 0.5 times the mean coil diameter.
- the coil assembly preferably surrounds the rotor along a cylindrical surface extending radially about the actuating axis. In this case, the diameter, in which the force acting in the circumferential direction about the actuating axis between the rotor and the stator acts in the physical sense, is considered as the mean coil diameter.
- the average coil diameter can be applied exactly in the middle between the coil arrangement arranged on the stator and the permanent magnet provided on the rotor or the second coil arrangement provided on the rotor.
- the mean engagement diameter is preferably the diameter in which, in the physical sense, the force acting in the circumferential direction about the actuation axis acts in the thread, which is provided between the actuation element and the rotor. It has been found that by providing a lever arm which is designed such that the average engagement diameter is at most 0.8 times the mean coil diameter, a good compromise of high, acting in the thread torques and at the same time a small space requirement of the adjusting unit reached is.
- a very high torque can preferably be generated, while still the space required for adjusting it can be kept so low.
- the particularly preferred ratio range of 0.3 - 0.5 the highest torque in the thread can be achieved, at the same time the space requirement of
- adjusting unit is slightly larger by a larger diameter of the coil arrangement, as in the previously described embodiments, but this is still accompanied by attempts by the applicant with a relatively compact design of the adjusting unit.
- the coil assembly at least partially surrounds the rotor and has a mean coil diameter, wherein the engagement region between the rotor and the stator has a mean engagement diameter, wherein the mean engagement diameter is at most 0.9 times, preferably at most 0.75 times and more preferably 0.5-0.7 times the mean coil diameter.
- the main body is part of a housing of an expanding wedge brake or a caliper, wherein the base body has an opening through which a cable for powering the coil assembly can be guided.
- an opening is provided in the base body in the region of the bearing of the stator, through which a cable for supplying power to the coil arrangement can be guided.
- This opening is particularly preferably formed as an elongated hole to allow for a displacement of the stator along the actuating axis during a braking operation without further power supply to the coil assembly.
- a sliding contact could also be provided in the base body, on which a corresponding contact on the stator slidingly transmits the corresponding voltage to the coil arrangement.
- the thread provided between the actuating element and the rotor or between the rotor and the stator is designed as a self-locking thread.
- a self-locking thread ensures that in the absence of a voltage in the coil assembly, the adjusting unit does not unintentionally reset and thus there is too much play on the brake system.
- the self-locking thread is characterized in particular by a very small increase or a small thread pitch, which in addition to the self-locking effect also offers the advantage that with a relatively small torque in the thread a large force which acts along the actuating axis and an adjustment between the actuator or rotor and each stator causes can be achieved.
- FIG. 1 is a schematic view of a preferred embodiment of the adjusting unit according to the invention without actuator
- Fig. 2 is a view of the adjusting unit of FIG. 1 in the extended
- FIG. 3 shows a schematic and partially sectioned view of two adjusting units in the sense of the present invention for use in an expanding wedge brake
- 4 is a partially sectioned view of an alternative embodiment of the readjustment units shown in FIG. 3
- FIG. 5 is a partially sectioned view of an adjustment unit for the invention
- Fig. 6 is a sectional view of an alternative embodiment of the adjusting unit shown in Fig. 5.
- Fig. 1 shows a first preferred embodiment of the adjusting unit according to the invention, in which a stator 2 is mounted displaceably in a recess of a base body 5 along an actuating axis B.
- a rotor 4 is arranged, which is supported on the stator via a thread.
- the rotor 4 has on its outward or in the figure to the left-facing end face on a first transmission section 9, via which a supporting force on a jaw member 8 along the actuating axis B is transferable.
- the composite of stator 2 and rotor 4 has a second transfer section 10, which in the present case is preferably designed as an oblique surface which is able to absorb a force of an actuating unit 12.
- the setting unit 12 is preferably an expanding wedge unit which transmits a force to the stator 2 along the actuating axis B in order to press the composite of stator 2 and rotor 4 against the jaw element 8.
- the stator 2 has a stator-side anti-rotation device 25 or a securing section 65, which engages in a corresponding base-side anti-rotation device 55 and a Verlabilley along the actuation axis permits, but prevents rotation of the stator 2 about the actuating axis B.
- the stator 2 has on its inside a coil arrangement 7, which in the present case preferably consists of four windings 72.
- a permanent magnet 71 is provided on the rotor. which is arranged such that a magnetic field generated in the windings 72 generates a torque in the permanent magnet 71 about the operation axis B.
- the coil arrangement 7 has a mean coil diameter D 7 , which in the present case is only slightly larger than the average engagement diameter D 4 between the rotor 4 and the stator 2 in the thread connecting the two components.
- the embodiment shown in FIG. 1 thus makes it possible to realize a particularly compact design with a substantially cylindrical outer geometry of the stator 2 (apart from the stator-side anti-rotation lock 25). It is particularly preferred that a sliding-reducing material is provided in the first transfer section 9, which reduces the friction upon rotation of the rotor 4 relative to the stator 2 and also relative to the jaw element 8.
- Fig. 2 shows the embodiment of the adjusting unit shown in Fig. 1, wherein the rotor 4 is in its intended from the stator 2 in operation, maximum unscrewed position. This position is thus preferably realized in the adjustment unit when the brake shoe pads are almost completely worn out and should soon be replaced.
- the permanent magnet 71 which is fixed to the rotor 4
- FIG. 1 and 2 an additional actuating element 6 can be dispensed with, as is required in the embodiments described below.
- the power supply of the coil assembly 7 and the windings 72 is not shown, but it is understood that, of course, a cable can be passed through the stator 2 and an opening 51 (not shown) in the main body 5 from the Adjustment can be led out.
- 3 shows a further preferred embodiment of the adjustment unit according to the invention, wherein in a base body 5, which is preferably the housing of an expanding wedge unit, at least one stator 2 is displaceably arranged along an actuating axis B. In contrast to the embodiments of the adjusting unit according to the invention shown in FIGS.
- an actuating element 6 is provided in the present embodiment, which engages via a thread on the rotor 4 and relative to the rotor and the stator 2 along the actuating axis by a rotation about the actuating axis is relocated.
- the advantage with this embodiment is that the coil arrangement 7 provided on the rotor 4 and on the stator 2 does not undergo a displacement movement along the actuation axis B relative to one another as in FIGS. 1 and 2, but can always be held exactly opposite one another. In this way, the coil assembly 7 can be optimized for maximum torque with a small size. Furthermore, it is shown that the mean coil diameter D 7 is greater than the average engagement diameter.
- the ratio of the average engagement diameter D 4 and the mean coil diameter D 7 is about 0.5-0.6, since in this way a particularly high torque in the thread between the rotor 4 and the actuator 6 can be generated and the size of the entire composite of stator 2, rotor 4 and actuator 6 can be kept very compact and small.
- the first transmission section 9 is not arranged on the rotor 4, but on the actuating element 6.
- the second transmission section 10 is as in the embodiments previously shown on Stator 2 is provided and engages an adjusting unit 12 a.
- the rotor 4 has a rotor recess 43, in which a section of the actuating element 6 equipped as an actuating bolt 62 with an external thread engages.
- a current connection 74 is shown schematically and rotated by 90.degree.
- the actuation axis B which can be connected to a cable 51 in the main body 5 via a slot 51 formed as a slot, to ensure the appropriate voltage to supply the coil assembly 7 with power.
- the opening 51 is preferably formed as an elongated hole, that the displacement movement of the stator 2 along the operating axis B in a braking operation together with the power cable, which is connected to the power supply, can be performed without causing a shearing in the leadership in the Base 5 comes.
- the actuating element 6 has a securing section 65, which engages with the back-side anti-rotation lock 85 of a brake shoe 8.
- the engagement shown in FIG. 1 can also be provided on the actuating element 6 with an anti-rotation device 55 on the base body side.
- the actuating element 6 on its cylindrical outer surface preferably has a securing portion 65 analogous to the stator-side anti-rotation device 25.
- FIG. 4 shows an alternative embodiment of the composite of stator 2, rotor 4 and actuating element 6, which can be used in an adjusting unit in the sense of FIG. 3.
- the actuating element 6 instead of the confirmation bolt 62 on an actuating recess 63, which can be screwed from the outside via the rotor 4 and a rotor bolt provided on the rotor 42.
- the stator 2 and the coil arrangement 7 provided on the stator 2 are arranged within a recess on the rotor 4.
- the advantage of this embodiment is that the actuating element 6 surrounds the rotor 4 and the stator 2 at least over a large area and thus protects against external influences.
- stator side VerFêt 25 In the region of the second transmission section 10 is also a stator side VerFêt 25 shown, via which the stator engages an adjusting unit 12 and is secured at the same time against rotation about the actuating axis B.
- the rotor 4 and the stator 2 are secured against displacement along the actuating axis B relative to each other. In the embodiment shown in Fig. 4, this is done by a snap ring, which sits in the region of the left in the figure shown distal end of the stator 2 in a corresponding groove.
- the actuating element 6 preferably has a securing section 65 formed as a groove for engagement in a back-side anti-twist device 85 (see FIG. 3) in order to prevent the actuating unit 6 from rotating about the actuating axis B relative to To secure the balk element 8.
- Fig. 5 shows a preferred embodiment of the adjusting unit for use in a disc brake system of a commercial vehicle.
- the second transmission section 10 is not acted upon by a Sp Drkeiliser with a force, as in the embodiments shown above, but by an actuating unit 12, which in the present case comprises a lever which is driven by a brake cylinder.
- the interaction of the elements actuating element 6, rotor 4 and stator 2 takes place in the embodiment shown in FIG. 5 similar to the embodiment shown in FIG. 4.
- the base element 8 is preferably a brake pad of a disc brake system.
- the second transmission section 10 preferably has a concave curved geometry.
- the actuating element 6 shows an alternative embodiment of the composite of stator 2, rotor 4 and actuating element 6 for use in the embodiment illustrated in FIG.
- the actuating element 6 is equipped with an actuating bolt 62. equips, which engages in a rotor recess 43 with an internal thread on the rotor 4.
- the mean engagement diameter D 4 in the region of the thread between the rotor 4 and the actuating element 6 is smaller than the mean coil diameter D 7 of the coil arrangement 7, which is provided between the stator 2 and the rotor 4 is.
- the coil arrangement 7 thus generates a higher torque in the thread between the actuating element 6 and the rotor 4 than the example in FIG the embodiments shown in FIGS. 5 and 6 preferably has a securing portion 65.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015202744.9A DE102015202744B4 (en) | 2015-02-16 | 2015-02-16 | adjusting unit |
PCT/EP2016/052673 WO2016131670A2 (en) | 2015-02-16 | 2016-02-09 | Adjustment unit |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3259832A2 true EP3259832A2 (en) | 2017-12-27 |
Family
ID=55361476
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16704817.2A Withdrawn EP3259832A2 (en) | 2015-02-16 | 2016-02-09 | Adjustment unit |
Country Status (6)
Country | Link |
---|---|
US (1) | US20170358975A1 (en) |
EP (1) | EP3259832A2 (en) |
CN (1) | CN107407359B (en) |
DE (1) | DE102015202744B4 (en) |
MX (1) | MX2017010462A (en) |
WO (1) | WO2016131670A2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016117449A1 (en) | 2016-09-16 | 2018-03-22 | Saf-Holland Gmbh | Actuator for drum brakes |
WO2019086122A1 (en) * | 2017-11-03 | 2019-05-09 | Wabco Europe Bvba | Apparatus for generating energy for a disc brake, and method for generating and storing energy for a disc brake |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2978621A (en) * | 1958-09-16 | 1961-04-04 | Pure Oil Co | Motor |
DE1625830C3 (en) * | 1967-12-12 | 1974-10-24 | Alfred Teves Gmbh, 6000 Frankfurt | Automatic, mechanical adjustment device for partially lined disc brakes |
ES2151976T3 (en) * | 1995-05-19 | 2001-01-16 | Continental Ag | BRAKE ACTUATOR FOR A VEHICLE ELECTRIC DRIVE BRAKE. |
DE19536694A1 (en) * | 1995-09-30 | 1997-04-03 | Teves Gmbh Alfred | Control system for an electromotive wheel brake |
GB2324843B (en) * | 1996-02-15 | 2000-05-17 | Kelsy Hayes Company | Brake actuation mechanism |
NL1006542C2 (en) * | 1997-07-10 | 1999-01-12 | Skf Ind Trading & Dev | Brake caliper with wear compensation. |
NL1014064C2 (en) * | 2000-01-14 | 2001-07-17 | Skf Eng & Res Centre Bv | Actuator and caliper. |
JP3738812B2 (en) * | 2000-01-18 | 2006-01-25 | 株式会社Tbk | Brake lining wear detector |
DE10112570B4 (en) * | 2000-03-15 | 2007-09-06 | Hitachi, Ltd. | Electrically actuated disc brake |
JP3740007B2 (en) * | 2000-09-28 | 2006-01-25 | トヨタ自動車株式会社 | Control device for vehicle brake |
US6481542B2 (en) * | 2001-02-19 | 2002-11-19 | Meritor Heavy Vehicle Systems, Llc. | Brake adjuster |
AU2003216868A1 (en) * | 2002-03-21 | 2003-10-08 | Lucas Automotive Gmbh | Electrically actuatable vehicle brake and method for controlling an electrically actuatable vehicle brake |
JP4439285B2 (en) * | 2004-02-17 | 2010-03-24 | Ntn株式会社 | Electric brake device |
US7635050B2 (en) * | 2004-07-29 | 2009-12-22 | Ntn Corporation | Electric brake assembly |
DE102006030032A1 (en) * | 2006-06-29 | 2008-01-10 | Zf Friedrichshafen Ag | Device for actuating a control or switching element |
DE102009001014A1 (en) * | 2009-02-19 | 2010-08-26 | Zf Friedrichshafen Ag | Electromechanical device for driving and / or braking a shaft |
DE102012002731A1 (en) * | 2012-02-10 | 2013-08-14 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Pad wear adjustment device for a disc brake |
DE102012003698A1 (en) * | 2012-02-28 | 2013-08-29 | BROSE SCHLIEßSYSTEME GMBH & CO. KG | Motor vehicle lock |
DE102014212897B4 (en) * | 2014-07-03 | 2016-02-04 | Saf-Holland Gmbh | braking system |
DE102014218163B3 (en) * | 2014-09-11 | 2016-02-04 | Saf-Holland Gmbh | Expanding wedge unit and braking device |
CN106594115B (en) * | 2016-12-29 | 2018-11-06 | 合肥工业大学 | A kind of brake-by-wire device of motor joint magnetostriction effect |
-
2015
- 2015-02-16 DE DE102015202744.9A patent/DE102015202744B4/en active Active
-
2016
- 2016-02-09 MX MX2017010462A patent/MX2017010462A/en active IP Right Grant
- 2016-02-09 EP EP16704817.2A patent/EP3259832A2/en not_active Withdrawn
- 2016-02-09 WO PCT/EP2016/052673 patent/WO2016131670A2/en active Application Filing
- 2016-02-09 CN CN201680005904.0A patent/CN107407359B/en not_active Expired - Fee Related
- 2016-02-09 US US15/540,182 patent/US20170358975A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
CN107407359B (en) | 2019-05-10 |
DE102015202744B4 (en) | 2017-08-24 |
CN107407359A (en) | 2017-11-28 |
MX2017010462A (en) | 2017-11-13 |
WO2016131670A3 (en) | 2016-10-20 |
DE102015202744A1 (en) | 2016-08-18 |
WO2016131670A2 (en) | 2016-08-25 |
US20170358975A1 (en) | 2017-12-14 |
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