WO2014068750A1 - 捩り振動減衰装置 - Google Patents
捩り振動減衰装置 Download PDFInfo
- Publication number
- WO2014068750A1 WO2014068750A1 PCT/JP2012/078344 JP2012078344W WO2014068750A1 WO 2014068750 A1 WO2014068750 A1 WO 2014068750A1 JP 2012078344 W JP2012078344 W JP 2012078344W WO 2014068750 A1 WO2014068750 A1 WO 2014068750A1
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- WIPO (PCT)
- Prior art keywords
- lubricating oil
- rotating body
- storage chamber
- vibration damping
- torsional vibration
- Prior art date
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- 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
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/14—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers
- F16F15/1407—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers the rotation being limited with respect to the driving means
- F16F15/145—Masses mounted with play with respect to driving means thus enabling free movement over a limited range
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- 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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
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- 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
- Y10T74/21—Elements
- Y10T74/2121—Flywheel, motion smoothing-type
Definitions
- the present invention relates to an apparatus for reducing torsional vibration of a rotating body such as a crankshaft and a power transmission shaft, and particularly to reduce torsional vibration of a rotating body by utilizing relative pendulum motion of a rolling inertia mass body. It relates to the device.
- a device configured to suppress resonance by a pendulum motion of a predetermined mass body is known, and an example thereof is described in Japanese Patent Laid-Open No. 2002-340097.
- a rigid pendulum is swingably attached to a side surface portion of a pulley by a pin, and the rigid pendulum has a natural frequency corresponding to the length from the pin to the center of gravity. By vibrating, it is configured to suppress torque fluctuation at the frequency. Since this rigid pendulum swings frequently or constantly in response to fluctuations in the torque of the pulley, the friction between the pin and the hole through which it penetrates is intense, so that wear caused by such friction is suppressed. In addition, a fluororesin film is formed on the inner peripheral surface of the hole.
- Japanese Patent Laid-Open No. 2001-153185 discloses an apparatus configured to lubricate between a rolling mass as an inertia mass body and an inner wall surface of a storage chamber in which the rolling mass is stored with lubricating oil.
- the device described in Japanese Patent Laid-Open No. 2001-153185 is for attenuating vibration of a crankshaft in an engine, and a plurality of storage chambers are formed in a hub attached to the crankshaft.
- the inner surface on the outer peripheral side is a rolling surface.
- the rolling mass arranged in the storage chamber When the hub rotates together with the crankshaft, the rolling mass arranged in the storage chamber is pushed against the rolling surface by centrifugal force, and when the torque of the crankshaft fluctuates in this state, the rolling mass reciprocates on the rolling surface. It moves and swings at a predetermined frequency with respect to the hub or crankshaft.
- An oil supply hole is formed in the storage chamber, so that oil in the crank chamber flows into the storage chamber through the oil supply hole, and the oil lubricates between the inner wall surface of the storage chamber and the rolling mass. It has become.
- the friction between the inertial mass body and a portion in contact with the inertial mass body becomes a problem. If the above-described fluororesin coating is used to solve the technical problem, although wear can be reduced, there are problems such as an increase in the work for forming the coating and an increase in the components of the vibration damping device. Arise.
- the present invention has been made paying attention to the above technical problem, and has as its object to provide a torsional vibration damping device that is excellent in wear resistance or durability and that can easily set or maintain vibration damping characteristics. To do.
- the present invention provides a rotating body in a rotating direction by rotating the torque on the outer periphery of the rotating body that receives torque and rotating the rotating body.
- the inertial mass body is housed in a liquid-tight state so as to reciprocate in the rotation direction of the rotating body, and is formed integrally with the rotating body.
- the inertia mass body is set to an amount that does not come into contact with the oil layer in a state in which the is formed.
- an inertial mass body that reciprocates in the rotation direction of the rotating body when the torque fluctuates in a state where the rotating body is rotating on an outer peripheral portion of the rotating body that receives torque.
- the inertial mass body is housed in a liquid-tight state so as to be able to reciprocate in the rotational direction of the rotating body and is formed integrally with the rotating body, and the housing chamber And a reciprocating path of the inertial mass body is pushed toward the inner wall surface on the outer peripheral side of the storage chamber by a centrifugal force to form an oil layer.
- the inertial mass body is provided at a position where the inertial mass body does not contact the oil layer over the entire movement range when the inertial mass body reciprocates due to fluctuations in the torque. is there.
- a lubricating oil reservoir may be provided on the outer peripheral portion of the storage chamber so as to open into the storage chamber and allow at least a part of the lubricating oil to flow.
- the lubricating oil reservoir can be provided on the outer side in the radial direction of the rotating body with respect to the storage chamber.
- the lubricating oil reservoir may be formed by projecting the outer peripheral portion of the storage chamber in a direction parallel to the rotational axis direction of the rotating body.
- a foreign matter catching part for catching foreign matter mixed in the lubricating oil may be further provided at a location where the lubricating oil comes into contact.
- the foreign matter capturing part may include a magnet that captures the magnetic metal powder.
- the foreign matter catching section may include a strainer that circulates the lubricating oil and scrapes off the solid content in the lubricating oil.
- the inertial mass body includes a rolling element that rolls due to a change in the torque, a rolling surface on which the rolling element is pressed by a centrifugal force, and the centrifugal force are disposed inside the storage chamber.
- a guide member may be provided that guides the lubricating oil that moves from the outer peripheral side to the inner peripheral side of the storage chamber due to a decrease in force to at least one of the rolling element and the rolling surface.
- a plurality of the inertia mass bodies are provided at predetermined intervals in the circumferential direction of the rotating body, and the storage chamber is provided independently for each of the plurality of inertia mass bodies, Between the plurality of storage chambers, there may be provided a communication path through which the lubricating oil in each storage chamber flows.
- the said inertial mass body is provided with two or more predetermined intervals in the circumferential direction of the said rotary body, and the said storage chamber is comprised so that these inertial mass bodies may be accommodated collectively. May have been.
- the inertial mass body rotates together with the rotating body.
- the inertial mass body reciprocates in the rotation direction with respect to the rotating body.
- the so-called pendulum motion of the inertial mass body attenuates the vibration of the rotating body corresponding to the vibration frequency.
- the lubricating oil sealed in the storage chamber that stores the inertial mass body is pushed to the outer peripheral side of the storage chamber by centrifugal force to form an oil layer along the inner wall surface on the outer peripheral side of the storage chamber.
- the thickness or depth of the oil layer depends on the amount of lubricating oil initially enclosed in the storage chamber, but the inertial mass body does not contact the oil layer and reciprocates or reciprocates.
- “contacting the oil layer” includes not only that a part of the rolling element contacts the surface of the oil layer but also a state of being immersed in the lubricating oil forming the oil layer. Therefore, resistance to the reciprocating motion (that is, vibration) of the inertial mass body by the lubricating oil does not occur or the resistance is reduced. Therefore, there is almost no deviation from the vibration order set in the design, and the vibration damping characteristic can be easily set as expected. In addition, vibration damping characteristics can be stably maintained by not being affected by the lubricating oil whose viscosity changes with temperature.
- the lubricating oil when the rotating body is stopped, the lubricating oil accumulates at the so-called bottom part of the storage chamber, and a part of the inertial mass body is immersed therein, so that the lubricating oil adheres to the inertial mass body and its surroundings. An oil film can be formed on the surface.
- the lubricant in the process in which the rotational speed of the rotating body increases or in the process in which the rotational speed decreases, the lubricant is stirred without being stuck to the inner wall surface on the outer peripheral side of the storage chamber.
- the lubricating oil in a state can fall on the inertia mass body and its surroundings to form an oil film.
- lubrication can be performed at locations where the inertial mass body comes into contact, such as the inner surface of the containment chamber or a mechanism for reciprocating the inertial mass body. Can be prevented or suppressed.
- the thickness or depth of the oil layer formed by centrifugal force can be reduced by providing the lubricating oil reservoir on the outer peripheral side of the storage chamber.
- the oil layer becomes shallow, so that the inertia mass body can be disposed on the outer peripheral side as the oil layer is thin, and the vibration is attenuated accordingly. Inertia torque can be increased.
- a foreign matter trapping part including a magnet or strainer is provided.
- the foreign matter can be separated from the lubricating oil and captured at a specific location.
- the possibility that the reciprocation of the inertial mass body is hindered can be reduced, and the progress of wear between the inertial mass body and a portion where the inertial mass body contacts can be prevented.
- Lubricating oil may be agitated depending on the number of revolutions of the rotating body and its change.
- so-called agitated lubricating oil is applied to the rolling element that is an inertial mass body and its rolling surface. It is possible to actively supply and promote the lubrication of the parts that are in contact with each other.
- the amount of lubricating oil in each of the storage chambers can be equalized by communicating the storage chambers with a communication path.
- FIG. 1 is a partially broken front view showing an example of a torsional vibration damping device according to the present invention.
- FIG. 2 is a cross-sectional view taken along the line II-II in FIG. It is a fragmentary figure which shows the other shape of a cover. It is a figure which shows typically the state in which lubricating oil flows or scatters at random inside a storage chamber. It is a front view which shows typically the example which provided the communicating path between each storage chamber. It is the partially broken front view which shows the example which provided the storage chamber which accommodates a some rolling element collectively. It is a schematic diagram for demonstrating the behavior of the lubricating oil in the example which provided the single storage chamber.
- FIG. 10 is a partial view showing still another example of the lubricating oil reservoir. It is the fragmentary figure which shows typically the example which provided the magnet as a foreign material capture
- FIG. 6 is a partial view schematically showing another example of a guide member that guides the lubricating oil mainly toward the rolling elements. It is the fragmentary figure which shows typically the example which provided the sub guide part in the guide member.
- the torsional vibration damping device is a so-called dynamic damper, which rotates by receiving a torque and rotating the inertial mass body with respect to the rotating body that vibrates by torsional vibration due to the fluctuation of the torque. It is configured to reduce or dampen vibration.
- the pendulum motion is generated by slidably connecting the inertial mass body to the rotator by a support shaft or a support pin, or rolls the inertial mass body along a predetermined rolling surface provided on the rotator. It can comprise so that it may produce by doing.
- a configuration in which the former inertial mass body is swingably attached to a rotating body is, for example, a configuration described in Japanese Patent Application Laid-Open No. 2002-340097 and Japanese Patent Publication No. 2011-504987, and the latter rolling surface.
- the configuration in which the inertial mass body rolls along the axis is, for example, the configuration described in Japanese Patent Laid-Open No. 2001-153185 described above.
- FIG. 1 schematically shows an example of the present invention.
- a rotating body 1 is a disk-like member as an example, and includes a crankshaft of an engine (not shown), a rotating shaft of a transmission, a pump impeller of a torque converter, and a turbine. It is configured to rotate integrally with a runner or the like.
- a plurality of rolling elements 2 are attached to a portion on the outer peripheral side of the rotating body 1 with a certain interval in the circumferential direction (the rotating direction of the rotating body 1). As shown in FIG.
- the rolling element 2 is provided with disc portions 2B having an outer diameter larger than the outer diameter of the support shaft 2A at both ends of the support shaft 2A slightly longer than the plate thickness of the rotating body 1.
- the cross-sectional shape is a member having an “H” shape.
- a plurality of penetrating portions 3 extending in the circumferential direction and penetrating in the thickness direction are formed on the outer peripheral portion of the rotating body 1 corresponding to the plurality of rolling elements 2.
- the width of the penetrating portion 3 (opening width in the radial direction of the rotating body 1) is set to be larger than the outer diameter of the support shaft 2A in the rolling element 2 and smaller than the outer diameter of the disc portion 2B. Therefore, the inner wall surface of the disc portion 2B is caught on the side surface of the rotating body 1 so that the rolling element 2 does not come out of the penetrating portion 3.
- the inner wall surface on the outer peripheral side of the penetrating portion 3 is a surface on which the rolling element 2 is pressed by a centrifugal force, and is an arc surface centered on a predetermined point shifted radially outward from the center of the rotating body 1 or its arc.
- the rolling surface 4 is formed in a cycloid curved surface that approximates the surface. Therefore, the rolling surface 4 has a central portion in the longitudinal direction that is farthest from the center of the rotating body 1, and this is a neutral point P 0, and the center of the rotating body 1 is shifted to the left and right from the neutral point P 0. It is gradually approaching.
- both the left and right sides starting from the neutral point P0 are cycloidal curved surfaces.
- the rolling element 2 is accommodated in the accommodating chamber 5 having a liquid-tight structure. That is, a cover 6 is attached to the rotating body 1, and the inside of the cover 6 is a storage chamber 5.
- the accommodation chamber 5 is provided independently for each rolling element 2, and each accommodation chamber 5 has a pair of covers 6 attached to both side surfaces with the rotating body 1 interposed therebetween. It is formed by.
- the cover 6 has comprised the fan shape of the magnitude
- the shape of the cover 6 may be other shapes such as an elliptical shape or an oval shape as shown in FIG.
- variety measured in the thickness direction of the rotary body 1) of the storage chamber 5 is formed slightly larger than the length of the rolling element 2 in the axial direction. And since the rolling element 2 can move to some extent in an axial direction, the inner wall surface of the disc part 2B contacts the side surface of the rotary body 1, or the outer surface of the disc part 2B contacts the inner surface of the cover 6. There is.
- the rolling element 2 Since the rolling element 2 may come into contact with the inner surface of the rotating body 1 or the cover 6 during the reciprocating motion, the rolling element 2 is placed inside the storage chamber 5 in order to lubricate the contact part (or sliding part). Is filled with lubricating oil 7.
- the amount of the lubricating oil 7 is set to an amount that does not cause excessive resistance to the reciprocating operation or vibration damping operation of the rolling element 2 and therefore does not greatly change the vibration order or amplitude ratio. More specifically, when the rotating body 1 rotates so as to generate a centrifugal force enough to press the rolling element 2 against the rolling surface 4, the lubricating oil 7 is directed toward the inner wall surface on the outer peripheral side of the storage chamber 5 by the centrifugal force.
- a layer (oil layer) 8 of lubricating oil 7 corresponding to the shape of the inner wall surface is formed.
- the oil layer 8 is omitted in FIG. 1 and is shown in FIG.
- the thickness (depth) of the oil layer 8 corresponds to the amount of the lubricating oil 7 sealed in the storage chamber 5, and in the present invention, the rolling element 2 (which is pressed against the rolling surface 4 by centrifugal force) ( In particular, the amount of the lubricating oil 7 is set so that the disc portion 2B) does not contact the oil layer 8 at all or slightly contacts it.
- the disk portion 2B does not contact the oil layer 8 formed on the outer peripheral side, and naturally, the outer peripheral portion of the disk portion 2B.
- the amount of the lubricating oil 7 is set so that the oil layer 8 is not immersed in the oil layer 8.
- “slightly touching” means that a part of the disk portion 2B contacts the oil layer 8 in either the range where the rolling element 2 reciprocates or the amplitude range where the pendulum moves. Or just submerge. In other words, the disk portion 2B does not contact or dip into the oil layer 8 over the entire range. Therefore, even if “slightly contact”, the degree of contact is a contact state or a contact amount that does not significantly affect the vibration order and amplitude ratio.
- the description of the amount of the lubricating oil 7 can also be described by replacing the position of the rolling element 2 in the rotating body 1 in the radial direction. That is, when the rotating body 1 rotates and centrifugal force acts on the lubricating oil 7, an oil layer 8 corresponding to the shape of the inner wall surface on the outer peripheral side of the storage chamber 5 is formed. On the other hand, the rolling element 2 is pressed against the above-described rolling surface 4 to define the position of the rotating body 1 in the outer peripheral direction. In the present invention, the rolling element is prevented so that the oil layer 8 formed by centrifugal force does not contact the rolling element 2 that reciprocates or pendulums, or contacts the entire range of the movement. The position of 2 or the position of the rolling surface 4 that defines the position is set.
- the lubricating oil 7 sealed in the respective storage chambers 5 is accumulated at the lowest position of the respective storage chambers 5.
- the depth of the lubricating oil 7 in this state is the depth at which almost the entire amount of the lubricating oil 7 in the storage chamber 5 is collected.
- a part of the rolling element 2 located on the lower side shown in FIG. 7 soaked. That is, the lubricating oil 7 adheres to the rolling element 2 to form an oil film.
- Lubrication is performed between the outer side surface of 2B and the inner side surface of the cover 6, and even if these slide, the friction and wear can be prevented or suppressed to improve durability. In addition, it is possible to prevent or suppress changes in vibration order and vibration attenuation characteristics due to friction.
- the agitation state of the lubricating oil 7 also occurs when the rotational speed and the centrifugal force associated therewith change abruptly, and therefore also occurs when the rotating body 1 stops.
- FIG. 3 schematically shows an example of the oil layer 8 having a constant thickness. Since the amount of the lubricating oil 7 or the position of the rolling element 2 is set as described above, the rolling element 2 (particularly, the disc portion 2B) does not contact the oil layer 8 or even a slight contact. .
- the rolling element 2 reciprocates or pendulums about the neutral point P0 described above, but the lubricating oil 7 moves to the rolling element 2.
- each storage chamber 5 is equal. It is preferable that an equal amount of lubricating oil 7 is contained in each storage chamber 5 at least during rotation. Therefore, in order to evenly distribute the lubricating oil 7 to the storage chambers 5, a communication path 9 can be provided between the storage chambers 5 as shown in FIG. 5.
- the communication passage 9 is preferably provided so that the portions on the outer peripheral side of the storage chambers 5 communicate with each other.
- the centrifugal force generated when the rotating body 1 rotates is the same at any location in the circumferential direction of the rotating body 1, the distance from the center of the rotating body 1 to the inner wall surface on the outer peripheral side of each storage chamber 5 is the same. If they are equal, the lubricating oil 7 tends to spread evenly along the inner wall surface on the outer peripheral side in each storage chamber 5. Therefore, when the amount of the lubricating oil 7 in each storage chamber 5 is uneven, the excess lubricating oil 7 flows through the communication path 9 to the shortage location, and the amount of the lubricating oil 7 in each storage chamber 5 Becomes even.
- a single accommodation chamber that accommodates all of the rolling elements 2 may be provided.
- a cover 6 ⁇ / b> A having the same outer diameter as that of the rotating body 1 and a bottom may be attached to both sides of the rotating body 1 in a liquid-tight state, and the inside of the cover 6 ⁇ / b> A may be used as the storage chamber 5.
- the inner peripheral wall surface of the storage chamber 5 is an arc surface centered on the rotation center of the rotating body 1, whereas the rolling surface 4 is an arc shape or a cycloid curved surface with a larger curvature.
- the moving body 2 is separated from the inner peripheral wall surface of the storage chamber 5 as it moves away from the neutral point P0 of the rolling surface 4.
- the rotating body 1 rotates and a centrifugal force acts on the lubricating oil 7, whereby the lubricating oil 7 is pressed toward the inner peripheral wall surface of the storage chamber 5, and FIG. ),
- An annular oil layer 8 is formed around the rotation center of the rotating body 1.
- the rolling element 2 is pressed against the rolling surface 4 by centrifugal force, and when the torque of the rotating body 1 fluctuates in this state, the rolling element 2 reciprocates along the rolling surface 4 or performs a pendulum motion.
- the rolling element 2 does not contact the oil layer 8, or even if it makes contact, the rolling element 2 only contacts in a small range in the vicinity of the neutral point P0.
- the pendulum vibrates at a frequency that resonates with the vibration of the order to be damped. That is, it shows the expected vibration damping characteristics.
- the lubricating oil 7 when the rotation speed of the rotating body 1 changes rapidly or when the rotation speed decreases, the lubricating oil 7 is in a state of being stirred, and accordingly, the lubricating oil 7 flows into the rolling elements 2 and the rolling surfaces 4.
- the fact that the oil film is formed on the inner wall surface on the outer peripheral side of the cover 6A is the same as in the above example in which the plurality of storage chambers 5 are independently formed.
- the vibration damping capacity of the rolling element 2 increases as the inertia torque of the rolling element 2 increases. Therefore, it is preferable that the rolling element 2 is arranged as far as possible on the outer peripheral side of the rotating element 1.
- the oil layer 8 described above is formed on the outer peripheral side of the rolling element 2, the oil layer 8 becomes a limiting factor for disposing the rolling element 2 on the outer peripheral side of the rotating body 1. Therefore, in order to reduce the thickness (or depth) of the oil layer 8 as much as possible, it is preferable to provide the lubricating oil reservoir 10.
- the lubricating oil reservoir 10 shows an example of the lubricating oil reservoir 10, and the lubricating oil reservoir 10 that opens to the storage chamber 5 is formed on the outer peripheral side of the storage chamber 5 provided separately for each rolling element 2.
- the volume of the lubricating oil reservoir 10 may be greater than or less than the total amount of the lubricating oil 7 sealed in the storage chamber 5.
- at least a part of the lubricating oil 7 that forms the oil layer 8 along the inner wall surface on the outer peripheral side of the storage chamber 5 enters the lubricating oil reservoir 10 and serves to form the oil layer 8. Therefore, the thickness (or depth) of the oil layer 8 can be reduced as compared with the oil layer 8 in each example described above.
- the rolling element 2 can be disposed on the outer peripheral side of the rotating body 1 by reducing the thickness (or depth) of the oil layer 8 and the vibration damping ability can be increased.
- the lubricating oil reservoir 10 is a penetrating portion formed by punching a portion of the rotating body 1 on the outer peripheral side from the rolling surface 4 in the plate thickness direction. There may be. Even in such a configuration, the volume in which the lubricating oil 7 pushed to the outer peripheral side by centrifugal force is retained is increased by the amount of the lubricating reservoir 10 which is a through portion. The thickness of the oil layer 8 formed so as to stick to the wall surface can be reduced, and accordingly, the rolling elements 2 can be disposed on the outer peripheral side as the oil layer 8 becomes thinner.
- a portion on the outer peripheral side of the storage chamber 5 is projected in a direction parallel to the rotation center axis of the rotating body 1, in other words, in the thickness direction of the storage chamber 5.
- the lubricating oil reservoir 10 is formed at the increased portion.
- the volume in which the lubricating oil 7 pushed to the outer peripheral side by the centrifugal force is retained is increased by the amount of the lubricating reservoir 10, so that the storage chamber 5
- the thickness of the oil layer 8 formed so as to stick to the inner wall surface on the outer peripheral side can be reduced, and accordingly, the rolling elements 2 can be disposed on the outer peripheral side as the oil layer 8 becomes thinner.
- the rolling element 2 can be configured in a simple disk shape or a short cylindrical shape in addition to the configuration in which the vertical cross-sectional shape is an “H” shape as described above.
- the inner wall surface on the outer peripheral side of the storage chamber 5 becomes the rolling surface 4.
- a groove directed in the circumferential direction may be formed on the rolling surface 4, and the groove may be used as the lubricating oil reservoir 10.
- the lubricating oil 7 randomly flows or scatters inside the storage chamber 5.
- the metal powder generated after the manufacturing process may be left inside the storage chamber 5, and fine burrs may be peeled off at the beginning of use to become foreign matters.
- it will be mixed with the lubricating oil 7 and carried to a location where the rolling elements 2 come into contact, causing wear.
- a foreign matter catching section can be provided.
- FIG. 12 shows an example of this. Considering that the foreign matter to be removed mainly has magnetism such as metal powder, the magnet 11 is located at a position where it does not interfere with the rolling element 2 inside the storage chamber 5. Is provided.
- FIG. 12 shows an example of this. Considering that the foreign matter to be removed mainly has magnetism such as metal powder, the magnet 11 is located at a position where it does not interfere with the rolling element 2 inside the storage chamber 5. Is provided.
- the strainer 12 shows another example of the foreign matter capturing part, in which the strainer 12 is provided in the accommodating chamber 5 at a position where it does not interfere with the rolling element 2 in place of the magnet 11 described above.
- the strainer 12 has a porous structure with an opening diameter smaller than the size of the foreign matter to be removed from the lubricating oil 7 and is configured to scrub off the foreign matter inside the lubricating oil 7 as it passes through. .
- FIGS. 14 and 15 are shown in which a magnet 11 is arranged between predetermined through portions 3 forming the rolling surface 4.
- FIG. 15 is a strainer in place of the magnet 11. 12 is an example.
- These magnets 11 or strainers 12 are arranged in the outer peripheral portion of the storage chamber 5 where the oil layer 8 is formed so that the lubricating oil 7 is frequently brought into contact.
- the lubricating oil 7 is sealed in the storage chamber 5 in order to lubricate between the rolling element 2 and the rolling surface 4 or the inner wall surface of the storage chamber 5.
- the lubricating oil 7 is agitated or fluidized by a change in the rotational speed of the rotating body 1, and the direction or spread of the fluid or scattering is random. Therefore, if the lubricating oil 7 that randomly flows or scatters is concentrated at the above-described locations where lubrication is necessary, the required amount of the lubricating oil 7 can be reduced.
- the guide member 13 can be provided for such a purpose. The example shown in FIG.
- the 16 is an example in which a pair of semicircular arc-shaped guide members 13 are provided on both the left and right sides of the penetrating portion 3 with the concave surfaces thereof facing the rolling elements 2. These guide members 13 are configured to have a radius of curvature larger than the radius of the rolling element 2, and one end thereof is substantially in contact with the inner wall surface on the outer peripheral side of the storage chamber 5.
- the storage chamber 5 may be provided individually for each rolling element 2, or may be a single chamber that accommodates a plurality of rolling elements 2 in a lump.
- the example shown in FIG. 17 is an example in which the guide member 13 is configured in a flat plate shape instead of the above-described arc shape.
- the example shown in FIG. 18 is an example in which a sub-guide portion 13A curved in a semicircular arc shape that guides the lubricating oil 7 toward the rolling surface 4 is provided on each concave surface of the arc-shaped guide member 13. .
- the guide member 13 and the sub-guide portion 13A may be provided on the side surface of the rotating body 1, or may be provided on the inner side surface of the cover 6, or may be formed by engraving on the inner side surface of the cover 6. May be.
- the lubricating oil 7 is supplied to the places where lubrication is required without waste, the required amount of the lubricating oil 7 is reduced, and the thickness of the oil layer 8 is reduced, so that the rolling elements 2 can be arranged on the outer peripheral side and vibrate. Attenuation ability can be improved. Further, the weight of the vibration damping device as a whole can be reduced.
- this invention is not limited to each example mentioned above, Comprising:
- the inner wall surface of the outer peripheral side of the storage chamber 5 is dented in the groove
- the shape or the structure may be changed as appropriate, for example, by increasing the distance from 2B at that portion so that the rolling element 2 does not contact the oil layer 8.
- SYMBOLS 1 Rotating body, 2 ... Rolling body, 2A ... Supporting shaft, 2B ... Disk part, 3 ... Penetration part, 4 ... Rolling surface, P0 ... Neutral point, 5 ... Storage chamber, 6 ... Cover, 7 ... Lubricating oil 8 ... oil layer, 9 ... communication path, 10 ... lubricating oil reservoir, 11 ... magnet, 12 ... strainer, 13 ... guide member, 13A ... sub-guide part.
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Abstract
Description
n=(R/L)1/2
で表され、これに対応した次数の振動が減衰される。
Claims (11)
- トルクを受けて回転する回転体の外周部に、前記回転体が回転している状態で前記トルクが変動することによって前記回転体の回転方向に往復動する慣性質量体が設けられた捩り振動減衰装置において、
前記慣性質量体を前記回転体の回転方向に往復動できるように液密状態に収容し、かつ前記回転体と一体に形成された収容室と、
その収容室に封入された所定量の潤滑油と
を備え、
前記潤滑油の量は、その潤滑油が遠心力によって前記収容室の外周側の内壁面に向けて押されて油層を形成している状態で前記慣性質量体がその油層に接触しない量に設定されている
ことを特徴とする捩り振動減衰装置。 - トルクを受けて回転する回転体の外周部に、前記回転体が回転している状態で前記トルクが変動することによって前記回転体の回転方向に往復動する慣性質量体が設けられた捩り振動減衰装置において、
前記慣性質量体を前記回転体の回転方向に往復動できるように液密状態に収容し、かつ前記回転体と一体に形成された収容室と、
その収容室に封入された所定量の潤滑油と
を備え、
前記慣性質量体の往復動の経路が、前記潤滑油が遠心力によって前記収容室の外周側の内壁面に向けて押されて油層を形成している状態で前記トルクの変動によって前記慣性質量体が往復動した場合の移動範囲の全体に亘っては前記慣性質量体がその油層に接触しない位置に設けられている
ことを特徴とする捩り振動減衰装置。 - 前記収容室の外周部に、前記収容室の内部に開口して前記潤滑油の少なくとも一部を流入させる潤滑油溜め部が設けられていることを特徴とする請求項1または2記載の捩り振動減衰装置。
- 前記潤滑油溜め部は、前記収容室に対して前記回転体の半径方向で外側に設けられていることを特徴とする請求項3に記載の捩り振動減衰装置。
- 前記潤滑油溜め部は、前記収容室の外周部を前記回転体の回転軸線方向と平行な方向に張り出させて形成されていることを特徴とする請求項3に記載の捩り振動減衰装置。
- 前記潤滑油に接触する箇所に、前記潤滑油に混入している異物を捕捉する異物捕捉部が設けられていることを特徴とする請求項1ないし5のいずれかに記載の捩り振動減衰装置。
- 前記異物捕捉部は、磁性金属粉末を捕捉する磁石を含むことを特徴とする請求項6に記載の捩り振動減衰装置。
- 前記異物捕捉部は、前記潤滑油を流通させてその潤滑油中の固形分を漉し取るストレーナーを含むことを特徴とする請求項6に記載の捩り振動減衰装置。
- 前記慣性質量体は、前記トルクの変動によって転動する転動体を含み、
前記収容室の内部には、前記転動体が遠心力によって押し付けられる転動面と、前記遠心力の減少によって前記収容室の外周側から内周側に移動する前記潤滑油を前記転動体と前記転動面との少なくともいずれか一方に導くガイド部材が設けられている
ことを特徴とする請求項1ないし8のいずれかに記載の捩り振動減衰装置。 - 前記慣性質量体は、前記回転体の円周方向に所定の間隔をあけて複数設けられ、
前記収容室は、前記複数の慣性質量体毎に独立して設けられ、
それら複数の収容室の間に、それぞれの収容室内の潤滑油を相互に流通させる連通路が設けられている
ことを特徴とする請求項1ないし9のいずれかに記載の捩り振動減衰装置。 - 前記慣性質量体は、前記回転体の円周方向に所定の間隔をあけて複数設けられ、
前記収容室は、それら複数の慣性質量体をまとめて収容するように構成されている
ことを特徴とする請求項1ないし9のいずれかに記載の捩り振動減衰装置。
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PCT/JP2012/078344 WO2014068750A1 (ja) | 2012-11-01 | 2012-11-01 | 捩り振動減衰装置 |
CN201280076851.3A CN104781580A (zh) | 2012-11-01 | 2012-11-01 | 扭转振动衰减装置 |
EP12887810.5A EP2916033A4 (en) | 2012-11-01 | 2012-11-01 | DEVICE FOR CONTROLLING TORSION VIBRATIONS |
JP2014544164A JP5880729B2 (ja) | 2012-11-01 | 2012-11-01 | 捩り振動減衰装置 |
US14/438,508 US9435397B2 (en) | 2012-11-01 | 2012-11-01 | Torsional vibration damping device |
BR112015009885A BR112015009885A2 (pt) | 2012-11-01 | 2012-11-01 | dispositivo de amortecimento vibração por torção |
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EP (1) | EP2916033A4 (ja) |
JP (1) | JP5880729B2 (ja) |
CN (1) | CN104781580A (ja) |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105090344A (zh) * | 2014-05-09 | 2015-11-25 | 平衡系统有限公司 | 用于旋转体的平衡装置 |
WO2016147690A1 (ja) * | 2015-03-19 | 2016-09-22 | 株式会社エクセディ | 動吸振装置、及び流体継手 |
JP2016176498A (ja) * | 2015-03-19 | 2016-10-06 | 株式会社エクセディ | 動吸振装置、及び流体継手 |
JP2021085496A (ja) * | 2019-11-29 | 2021-06-03 | トヨタ自動車株式会社 | 遠心振り子式ダンパ |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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JP2018013144A (ja) | 2016-07-19 | 2018-01-25 | 株式会社エクセディ | 動吸振器 |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001153185A (ja) | 1999-11-25 | 2001-06-08 | Nok Vibracoustic Kk | ダイナミックダンパ |
JP2002340097A (ja) | 2001-03-14 | 2002-11-27 | Toyota Industries Corp | 回転体および圧縮機 |
JP2005140288A (ja) * | 2003-11-07 | 2005-06-02 | Sankyo Seiki Mfg Co Ltd | 自動平衡装置およびその製造方法 |
JP2011504987A (ja) | 2007-11-29 | 2011-02-17 | ルーク ラメレン ウント クツプルングスバウ ベタイリグングス コマンディートゲゼルシャフト | 回転数適応型の動吸振器を備えた力伝達装置および減衰特性を改善するための方法 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL77950C (ja) * | 1948-09-17 | |||
GB9125113D0 (en) * | 1991-11-23 | 1992-01-22 | Holset Engineering Co | A torsional vibrational damper |
GB2354055B (en) | 1998-07-11 | 2001-08-08 | Freudenberg Carl | Speed-adaptive vibration damper |
DE19831154B4 (de) * | 1998-07-11 | 2005-04-21 | Carl Freudenberg Kg | Drehzahladaptiver Schwingungstilger |
JP2000297843A (ja) * | 1999-04-16 | 2000-10-24 | Nok Vibracoustic Kk | ダイナミックダンパ |
DE19954272A1 (de) | 1999-11-11 | 2001-05-17 | Mannesmann Sachs Ag | Schwingungsdämpfungsvorrichtung |
US6719537B2 (en) * | 2001-03-14 | 2004-04-13 | Kabushiki Kaisha Toyota Jidoshokki | Compressor and pulley for compressor |
JP2002340143A (ja) * | 2001-03-14 | 2002-11-27 | Toyota Industries Corp | 圧縮機 |
JP2006090530A (ja) * | 2004-09-27 | 2006-04-06 | Tokai Rubber Ind Ltd | 回転軸用制振装置 |
FR2925139B1 (fr) * | 2007-12-17 | 2010-01-08 | Sc2N Sa | Capteur de position d'une boite de vitesses et boite de vitesses correspondante |
JP5274435B2 (ja) * | 2009-11-26 | 2013-08-28 | ジヤトコ株式会社 | オイルストレーナにおけるエア溜まり防止構造 |
JP5177288B2 (ja) * | 2010-10-15 | 2013-04-03 | トヨタ自動車株式会社 | 振動減衰装置 |
JP5862767B2 (ja) * | 2012-04-27 | 2016-02-16 | トヨタ自動車株式会社 | 振動低減装置 |
-
2012
- 2012-11-01 WO PCT/JP2012/078344 patent/WO2014068750A1/ja active Application Filing
- 2012-11-01 EP EP12887810.5A patent/EP2916033A4/en not_active Withdrawn
- 2012-11-01 BR BR112015009885A patent/BR112015009885A2/pt not_active IP Right Cessation
- 2012-11-01 JP JP2014544164A patent/JP5880729B2/ja not_active Expired - Fee Related
- 2012-11-01 CN CN201280076851.3A patent/CN104781580A/zh active Pending
- 2012-11-01 US US14/438,508 patent/US9435397B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001153185A (ja) | 1999-11-25 | 2001-06-08 | Nok Vibracoustic Kk | ダイナミックダンパ |
JP2002340097A (ja) | 2001-03-14 | 2002-11-27 | Toyota Industries Corp | 回転体および圧縮機 |
JP2005140288A (ja) * | 2003-11-07 | 2005-06-02 | Sankyo Seiki Mfg Co Ltd | 自動平衡装置およびその製造方法 |
JP2011504987A (ja) | 2007-11-29 | 2011-02-17 | ルーク ラメレン ウント クツプルングスバウ ベタイリグングス コマンディートゲゼルシャフト | 回転数適応型の動吸振器を備えた力伝達装置および減衰特性を改善するための方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2916033A4 * |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105090344A (zh) * | 2014-05-09 | 2015-11-25 | 平衡系统有限公司 | 用于旋转体的平衡装置 |
WO2016147690A1 (ja) * | 2015-03-19 | 2016-09-22 | 株式会社エクセディ | 動吸振装置、及び流体継手 |
JP2016176498A (ja) * | 2015-03-19 | 2016-10-06 | 株式会社エクセディ | 動吸振装置、及び流体継手 |
JP2016176499A (ja) * | 2015-03-19 | 2016-10-06 | 株式会社エクセディ | 動吸振装置、及び流体継手 |
CN107429791A (zh) * | 2015-03-19 | 2017-12-01 | 株式会社艾科赛迪 | 动态减振器以及液力耦合器 |
CN107429791B (zh) * | 2015-03-19 | 2019-04-12 | 株式会社艾科赛迪 | 动态减振器以及液力耦合器 |
US10281002B2 (en) | 2015-03-19 | 2019-05-07 | Exedy Corporation | Dynamic vibration absorbing device and fluid coupling |
US10473184B2 (en) | 2015-03-19 | 2019-11-12 | Exedy Corporation | Dynamic vibration absorbing device and fluid coupling |
JP2021085496A (ja) * | 2019-11-29 | 2021-06-03 | トヨタ自動車株式会社 | 遠心振り子式ダンパ |
US11371580B2 (en) | 2019-11-29 | 2022-06-28 | Toyota Jidosha Kabushiki Kaisha | Centrifugal pendulum damper |
JP7120206B2 (ja) | 2019-11-29 | 2022-08-17 | トヨタ自動車株式会社 | 遠心振り子式ダンパ |
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US9435397B2 (en) | 2016-09-06 |
EP2916033A4 (en) | 2016-07-13 |
JP5880729B2 (ja) | 2016-03-09 |
BR112015009885A2 (pt) | 2017-07-11 |
US20150276014A1 (en) | 2015-10-01 |
EP2916033A1 (en) | 2015-09-09 |
JPWO2014068750A1 (ja) | 2016-09-08 |
CN104781580A (zh) | 2015-07-15 |
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