WO2006022280A1 - トリガプレート付きダンパ - Google Patents
トリガプレート付きダンパ Download PDFInfo
- Publication number
- WO2006022280A1 WO2006022280A1 PCT/JP2005/015322 JP2005015322W WO2006022280A1 WO 2006022280 A1 WO2006022280 A1 WO 2006022280A1 JP 2005015322 W JP2005015322 W JP 2005015322W WO 2006022280 A1 WO2006022280 A1 WO 2006022280A1
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- WO
- WIPO (PCT)
- Prior art keywords
- sleeve
- trigger plate
- damper
- hub
- elastic body
- Prior art date
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Classifications
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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
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
- F16F15/124—Elastomeric springs
- F16F15/126—Elastomeric springs consisting of at least one annular element surrounding the axis of rotation
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2300/00—Special features for couplings or clutches
- F16D2300/18—Sensors; Details or arrangements thereof
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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
- F16F2230/00—Purpose; Design features
- F16F2230/08—Sensor arrangement
Definitions
- the present invention relates to a damper that absorbs torsional vibration of a rotating shaft, and more particularly to a damper provided with a trigger plate for detecting the rotation angle of the rotating shaft.
- Patent Document 1 Japanese Patent Application Laid-Open No. 11 281312
- the trigger plate described in Patent Document 1 is manufactured by a punching press of a magnetic metal plate, and a required number of detected protrusions are provided in the circumferential direction along the outer peripheral edge. It is formed with.
- a magnetic sensor crank angle sensor
- crank angle sensor is arranged in a non-rotating state at one place in the circumferential direction on the outer peripheral side of the trigger plate, and the passage of the detected projection of the trigger plate that rotates with the crankshaft can be read.
- the crank angle for triggering the engine ignition device and the fuel injection device is detected.
- the trigger plate is substantially a separate member from the component parts of the damper, so that the number of parts of the damper is increased.
- the present invention has been made in view of the above points, and a technical problem thereof is to provide a damper with a trigger plate that does not increase the number of parts due to the trigger plate.
- a damper with a trigger plate according to the invention of claim 1 includes a hub attached to a rotary shaft and an annular mass disposed on the outer peripheral side of the hub.
- a damper comprising a sleeve and an elastic body interposed between the body and the front
- a trigger plate magnetized at a predetermined pitch in the circumferential direction is integrally provided at one end of the sleeve.
- the damper with trigger plate according to the invention of claim 2 is characterized in that, in the damper with trigger plate of claim 1 described above, the sleeve is fitted to the outer peripheral side of the hub.
- the damper with a trigger plate according to the invention of claim 3 is characterized in that, in the damper with the trigger plate of claim 1, the sleeve is fitted to the inner peripheral side of the annular mass body.
- the trigger plate is provided integrally with the sleeve that is a component part of the damper, the number of parts of the damper and the number of assembly steps are reduced.
- the trigger plate does not increase and the trigger plate can be firmly fixed by press-fitting the sleeve.
- FIG. 1 shows a first embodiment of a damper with a trigger plate according to the present invention.
- (A) is a half sectional view cut along a plane passing through an axis, and
- (B) is (A) It is a partial arrow view in the B direction at.
- FIG. 2 shows a second embodiment of the damper with trigger plate according to the present invention
- (A) is a half sectional view cut along a plane passing through the axis
- (B) is a B direction in (A). It is a partial arrow view of.
- FIG. 3 shows a third embodiment of a damper with a trigger plate according to the present invention, in which (A) is a half sectional view cut along a plane passing through an axis, and (B) is a partial perspective view. is there.
- FIG. 4 is a half sectional view showing a fourth embodiment of a damper with a trigger plate according to the present invention by cutting along a plane passing through its axis.
- FIG. 5 is a half cross-sectional view showing a fifth embodiment of a damper with a trigger plate according to the present invention by cutting along a plane passing through its axis.
- FIG. 6 is a half sectional view showing a sixth embodiment of a damper with a trigger plate according to the present invention by cutting along a plane passing through its axis.
- FIG. 1 shows a first embodiment of a damper with a trigger plate according to the present invention, where (A) is a half sectional view cut along a plane passing through the axis, and (B) is in (A). It is a partial arrow view of the B direction.
- “front” means the left side in FIG. 1 (A) or FIG. 2 (A), FIG. 3 (A), and FIG. 4, and “back” is the opposite side. The side where the engine shown in FIG.
- reference numeral 1 denotes a front surface of a crankshaft (not shown) of an automobile engine.
- a hub attached to the end reference numeral 2 is a sleeve press-fitted to the outer peripheral surface of the rim portion 13 in the hub 1
- reference numeral 3 is an annular mass body concentrically disposed on the outer peripheral side of the sleeve 2
- Reference numeral 4 is an elastic body interposed between the sleeve 2 and the annular mass body 3
- reference numeral 5 is a trigger plate that is provided integrally with the sleeve 2 and is magnetized at a predetermined circumferential pitch. .
- the hub 1 is made of a metal material, and has a cylindrical boss portion 11 fixed to a front end portion of the crankshaft via a center bolt (not shown), and an outer peripheral side from the boss portion 11. And a cylindrical rim portion 13 formed on the outer periphery thereof.
- a plurality of window portions 12a are opened at predetermined intervals in the circumferential direction for the purpose of reducing the weight.
- Reference numeral 11 a is a key groove formed on the inner periphery of the boss portion 11.
- the annular mass 3 is made of a metal material such as pig iron or steel, and an endless belt for transmitting a rotational force to an engine auxiliary machine (not shown) is wound around the outer peripheral surface thereof.
- a poly V groove 3a is formed to hang.
- the sleeve 2 is manufactured by punching and pressing a magnetic metal plate such as a steel plate, and has a cylindrical shape, and a required tightening margin is provided on the outer peripheral surface of the rim portion 13 of the hub 1. It is press-fitted.
- the elastic body 4 is formed in a ring shape from a rubber-like elastic material, and is vulcanized and bonded between the inner peripheral surface 3 b of the annular mass body 3 and the sleeve 2.
- an outward flange 2a extending in a disc shape is extended to the outer peripheral side. That is, the outward flange 2a is made of a magnetic metal plate made of the same material as that of the sleeve 2, and has an appropriate gap with respect to the end surface on the back side of the annular mass 3 in a direction perpendicular to the axis. Has been extended to.
- the trigger plate 5 is composed of the outward flange portion 2a and a magnetized layer 51 bonded to the back surface thereof.
- the magnetized layer 51 in the trigger plate 5 also has a rubber-like elastic material or synthetic resin material force in which fine powders of magnetic material such as ferrite are uniformly mixed, and extends outwardly from the sleeve 2.
- the magnetic poles (S and N poles) 5 la which are joined to the back surface of the steel plate by vulcanization adhesion, etc. alternately in the circumferential direction are magnetized in multiple poles at a predetermined pitch!
- the trigger plate 5 is provided with a crank angle measurement origin 51a ′ for detecting a specific position such as a top dead center of an engine piston, for example.
- the crank angle measurement origin 51a ′ is formed by providing a portion with a different magnetization pitch of the magnetic poles 51a at one place in the circumferential direction.
- a magnetic sensor 6 having a force such as a Hall element or a magnetoresistive element is arranged in a non-rotating state, and a detection surface thereof forms a magnetized layer 51 forming a main body of the trigger plate 5. And are close to each other in the axial direction.
- the trigger plate 5 and the magnetic sensor 6 constitute a rotary encoder that detects the crank angle of the crankshaft for engine ignition timing control and fuel injection timing control.
- the elastic body 4 and the annular mass 3 constitute a spring mass system (sub-vibration system), and the natural frequency of the torsional direction is the circumferential inertia mass of the annular mass 3 and the elastic body.
- the circumferential shear spring constant of 4 is set to the vibration frequency band where the crankshaft torsional vibration amplitude is maximized.
- the damper with a trigger plate having the above-described configuration is externally fixed to the front end portion of the crankshaft at the boss portion 11 of the hub 1, and is rotated integrally with the crankshaft.
- the secondary vibration system composed of the annular mass body 3 and the elastic body 4 Resonates in the torsional direction with a phase angle opposite to that, that is, the torque generated by the resonance occurs in the direction opposite to the torque of the input vibration (dynamic vibration action), which effectively reduces the peak of the torsional vibration of the crankshaft. it can.
- the trigger plate 5 rotates integrally with the hub 1
- the front surface of the detection surface of the magnetic sensor 6 is placed on the N pole and S magnetized on the magnetized layer 51 of the trigger plate 5. Since the poles pass alternately, the magnetic sensor 6 generates a pulse signal having a waveform corresponding to the change in the magnetic field. This signal is output to an engine control unit (not shown) as crank angle data for engine ignition timing control and fuel injection timing control.
- the fine powder of the magnetic material is uniformly mixed into the outward flange 2a formed on the sleeve 2.
- the magnetized layer 51 is integrally vulcanized with a rubber-like elastic material or synthetic resin material.
- the elastic body 4 is integrally vulcanized and molded by an unvulcanized rubber-like elastic material between the sleeve 2 and the annular mass body 3 that are formed concentrically with each other, and the integrated body obtained by this process is obtained.
- the molded product is press-fitted into the outer periphery of the rim portion 13 of the hub 1 in the sleeve 2.
- the sleeve 2 is expanded and deformed in the process of press-fitting into the rim portion 13, whereby the elastic body 4 is pre-compressed radially with the annular mass body 3, so that Residual tensile stress due to volume shrinkage caused by is reduced or eliminated.
- the magnetic layer 51 needs to be subjected to multipolar magnetization. This magnetization process may be performed before or after the incorporation into the hub 1. Alternatively, it may be performed after the elastic body 4 is molded.
- the trigger plate 5 Since the trigger plate 5 is integral with the sleeve 2 that fixes the secondary vibration system of the annular mass body 3 and the elastic body 4 to the groove 1, the trigger plate 5 does not increase the number of parts. The trigger plate 5 is also attached at the same time by the press-fitting process described above. In addition, since the trigger plate 5 can be fixed with tension through the sleeve 2, relative rotation by sliding with the hub 1 occurs, and the reliability of crank angle detection by the magnetic sensor 6 is impaired. Alternatively, the trigger plate 5 can be reliably prevented from falling off the hub 1.
- FIG. 2 shows a second embodiment of a damper with a trigger plate according to the present invention.
- (A) is a half sectional view cut along a plane passing through the axis, and (B) is in (A). It is a partial arrow view in the B direction.
- the second embodiment shown in FIG. 2 is different from the first embodiment shown in FIG. 1 described above in that the magnetized layer 51 of the trigger plate 5 is the end of the sleeve 2 on the back side. 1 is integrally joined to the back surface of the inwardly facing flange 2b formed integrally from the inner part to the inner peripheral side. Therefore, the trigger plate 5 and the magnetic sensor 6 disposed so as to face this are shown in FIG. In comparison with the above, it is located relatively on the inner circumference side. The rest of the configuration is basically the same as in Figure 1.
- the production of the damper with the trigger plate according to this embodiment is the same as that of the first embodiment. That is, for example, first, the fine powder of the magnetic material is uniformly mixed in the inwardly facing flange portion 2b formed on the sleeve 2.
- the magnetized layer 51 is integrally formed by using an unvulcanized rubber-like elastic material or synthetic resin material.
- the elastic body 4 is then integrally vulcanized and molded with an unvulcanized rubber-like elastic material between the sleeve 2 and the annular mass 3 that are vulcanized and set concentrically with each other.
- the integrally molded product is press-fitted into the outer periphery of the rim portion 13 of the hub 1 in the sleeve 2.
- the magnetizing layer 51 may be magnetized before or after being incorporated into the hub 1.
- the magnetized layer 51 may be molded after the elastic body 4 is molded. good.
- the magnetic powder mixed rubber-like elastic material or synthetic resin material used for the magnetization layer 51 is expensive, but according to this embodiment, the trigger plate 5 has a small diameter and a circumference thereof. Since it is short, the material cost of the magnetized layer 51 can be reduced as compared with the embodiment of FIG.
- FIG. 3 shows a third embodiment of the damper with trigger plate according to the present invention, wherein (A) is a half sectional view cut along a plane passing through the axis, and (B) is a partial perspective view.
- A is a half sectional view cut along a plane passing through the axis
- B is a partial perspective view.
- the third embodiment shown in FIG. 3 differs from the first embodiment shown in FIG. 1 or the second embodiment shown in FIG.
- Layer 51 Force The sleeve 2 is integrally formed on the outer peripheral surface of the end portion 2c projecting from the adhesion portion with the elastic body 4 to the back side, that is, the magnetized layer 51 has a cylindrical shape, and the magnetic sensor 6
- the magnetic layer 51 is disposed on the outer peripheral surface of the magnetic layer 51 so as to face the outer surface in the radial direction.
- Other configurations are basically the same as those in Fig. 1 or Fig. 2.
- the production of the damper with the trigger plate according to this embodiment is the same as that of the first embodiment. That is, for example, first, the fine powder of the magnetic material is not uniformly mixed on the outer peripheral surface of the end 2c of the sleeve 2.
- the magnetized layer 51 is integrally vulcanized with a vulcanized rubber-like elastic material or synthetic resin material, and then unvulcanized rubber is placed between the sleeve 2 and the annular mass 3 set concentrically with each other.
- the elastic body 4 is integrally vulcanized and molded with the elastic material, and the integrally molded product obtained by this process is press-fitted into the outer periphery of the rim portion 13 of the hub 1 in the sleeve 2.
- the magnetizing layer 51 may be magnetized before or after being assembled into the hub 1.
- the magnetized layer 51 may be molded after the elastic body 4 is molded. ,.
- the material cost of the magnetized layer 51 can be reduced as compared with the embodiment of FIG.
- FIG. 4 is a half cross-sectional view showing a fourth embodiment of a damper with a trigger plate according to the present invention by cutting along a plane passing through its axis as such an example.
- the fourth embodiment shown in FIG. 4 is different from the previously described embodiments in that the elastic body 4 is press-fitted between the sleeve 2 and the annular mass body 3 disposed on the outer periphery thereof. At the point of mating.
- the inner peripheral surface 3b of the annular mass 3 has a cross-sectional shape (cross-sectional shape shown in Fig. 4) cut along a plane passing through the axial center, and the outer peripheral side so that the intermediate portion in the axial direction forms a curved surface. It has a concave shape.
- the sleeve 2 has a cross-sectional shape (cross-sectional shape shown in FIG. 4) cut along a plane passing through the axial center corresponding to the inner peripheral surface 3b of the annular mass 3, and the intermediate portion in the axial direction forms a curved surface.
- the shape swelled to the outer peripheral side is formed, and both ends in the axial direction and the vicinity thereof are fitted to the cylindrical outer peripheral surface of the rim portion 13 of the hub 1 with appropriate tightening allowances.
- the annular elastic body 4 is formed in advance in a ring shape (cylindrical shape) with a rubber-like elastic material, and is press-fitted between the inner peripheral surface 3 b of the annular mass body 3 and the sleeve 2.
- This annular elastic body 4 is formed on the outer circumferential side so that the axially intermediate portion forms a curved surface along the inner circumferential surface 3b of the annular mass body 3 and the inner circumferential surface 3b of the annular mass body 3 radially opposed thereto.
- the meandering cross-sectional shape prevents slippage of the annular mass body 3 with respect to the inner peripheral surface 3b and the sleeve 2.
- the magnetized layer 51 in the trigger plate 5 is integrally formed from the end on the back side of the sleeve 2 to the inner peripheral side, as in the second embodiment shown in FIG. 2 described above. It is integrally joined to the back surface of the inward flange portion 2b, and magnetic poles (S poles and N poles) alternately arranged in the circumferential direction are magnetized on the magnetized layer 51 at a predetermined pitch. .
- crankshaft is fixed to the front end portion of the crankshaft and rotated integrally with the crankshaft, and the torsional vibration amplitude of the crankshaft is increased. Consists of an annular mass 3 and an elastic body 4 in the maximum rotational speed range When the secondary vibration system resonates in the torsional direction with a phase angle opposite to that of the input vibration, the peak of the torsional vibration of the crankshaft is effectively reduced by the dynamic vibration absorption action. Also
- the magnetic sensor 6 disposed on the rear side outputs a noise signal that serves as crank angle data for triggering the engine ignition device and the fuel injection device. To do.
- an unvulcanized rubber-like elastic material in which fine powder of magnetic material is uniformly mixed or synthesized on the back surface of the inward flange portion 2b of the sleeve 2
- the magnetized layer 51 is integrally vulcanized with a resin material.
- the annular mass body 3 is concentrically disposed on the outer peripheral side of the sleeve 2, and is formed into a ring shape (cylindrical shape) with a rubber-like elastic material in advance between the inner circumferential surface 3b of the annular mass body 3 and the sleeve 2.
- the elastic body 4 is pressed in the axial direction. In this case, it is preferable to apply a coupling agent for increasing the sliding torque of the mating surfaces to the outer peripheral surface of the sleeve 2 and the inner peripheral surface 3b of the annular mass body 3 or the elastic body 4 in advance.
- the press-fitting resistance force is reduced, and therefore the press-fitting operation can be easily performed. I can do it.
- the inner sleeve 2 is press-fitted into the outer peripheral surface of the rim portion 13 of the hub 1.
- the sleeve 2 has an appropriate tightening allowance with respect to the rim portion 13, and the bending force is slightly reduced in diameter by the press-fitting of the elastic body 4, so that the sleeve 2 and the rim portion 13 have a fitting surface on the fitting surface.
- the compression reaction force of the elastic body 4 with the tightening force is also applied as a tightening force, a firm fitting state is obtained.
- the trigger plate 5 integrated with the sleeve 2 is firmly fixed, and the elastic body 4 is compressed in the radial direction as the sleeve 2 is press-fitted into the rim portion 13, so that the sleeve 2 and the annular mass body 3 are The fitting force of the elastic body 4 is also improved.
- the trigger plate 5 is integrated with the sleeve 2 that fixes the secondary vibration system of the annular mass body 3 and the elastic body 4 to the knob 1. Therefore, the trigger plate 5 increases the number of parts.
- the trigger plate 5 is also installed at the same time by the press-fitting of the sleeve 2 to be performed. As described above, since the trigger plate 5 is firmly fixed through the sleeve 2, the rotation of the trigger plate 5 relative to the hub 1 causes a relative rotation, thereby impairing the reliability of the crank angle detection by the magnetic sensor 6. Or the trigger plate 5 falls off the hub 1. Can be surely prevented.
- the trigger plate 5 is developed from the sleeve 2 to the outer peripheral side as shown in FIG. 1, or the back side of the sleeve 2 as shown in FIG. It can also be formed in a cylindrical shape at the end portion 2c.
- the sleeve 2 is fitted (press-fitted) on the outer peripheral side of the hub 1, whereas in the fifth embodiment, the sleeve 2 is an inner part of the annular mass 3. It is fitted (press-fit) on the circumferential side.
- reference numeral 1 is an annular hub attached to the front end portion of the crankshaft (not shown) of the automobile engine
- reference numeral 3 is the hub 1.
- An annular mass concentrically arranged on the outer peripheral side reference numeral 2 is a sleeve fitted (press-fit) to the inner peripheral surface of the annular mass 3
- reference numeral 4 is the hub 1 and sleeve
- Reference numeral 5 denotes an elastic body interposed between the trigger plate 2 and a trigger plate that is integrally provided with the sleeve 2 and is magnetized at a predetermined pitch in the circumferential direction.
- the hub 1 is made of a metal material, and has a cylindrical boss portion 11 fixed to a front end portion of the crankshaft via a center bolt (not shown), and the boss portion 11 It consists of a radial direction portion 12 extending to the outer peripheral side, and a cylindrical rim portion 13 formed on the outer periphery.
- Reference numeral 11a is a key groove formed on the inner periphery of the boss portion 11.
- the annular mass 3 is made of a metal material such as pig iron or steel, and an endless belt for transmitting a rotational force to an engine auxiliary machine (not shown) is wound around the outer peripheral surface thereof.
- a poly V groove 3a is formed to hang.
- the sleeve 2 is manufactured by punching and pressing a metal plate made of a magnetic material such as a steel plate.
- the sleeve 2 has a cylindrical shape and is press-fitted into the inner peripheral surface of the annular mass 3 with a required tightening margin. It is inserted.
- the elastic body 4 is formed in a ring shape from a rubber-like elastic material, and is disposed between the outer peripheral surface of the rim portion 13 of the hub 1 and the inner peripheral surface of the sleeve 2, and is disposed on both surfaces. Vulcanized and bonded
- the end portion on the back side of the sleeve 2 is extended in the axial direction, and radially outward from the distal end portion thereof.
- An outward flange 2a that extends in a disk shape is extended. That is, the outward flange 2a also has a magnetic metal plate force made of the same material as that of the sleeve 2, and extends in a direction perpendicular to the axial center with an appropriate gap with respect to the end surface on the back side of the annular mass 3.
- the trigger plate 5 is composed of the outward flange portion 2a and a magnetized layer 51 bonded to the back surface thereof.
- the magnetized layer 51 in the trigger plate 5 also has a rubber-like elastic material or synthetic resin material force in which fine powders of a magnetic material such as ferrite are uniformly mixed, and extends outwardly from the sleeve 2.
- magnetic poles S poles and N poles
- S poles and N poles that are alternately different in the circumferential direction are magnetized in multiple poles at a predetermined pitch. Yes.
- the trigger plate 5 is provided with a crank angle measurement origin for detecting a specific position such as the top dead center of an engine piston, for example. It is formed by providing a portion with a different magnetization pitch of magnetic poles at one location.
- a magnetic sensor 6 having a force such as a Hall element or a magnetoresistive element is arranged in a non-rotating state, and a detection surface thereof forms a magnetized layer 51 that forms the body of the trigger plate 5. And are close to each other in the axial direction.
- the trigger plate 5 and the magnetic sensor 6 constitute a rotary encoder that detects the crank angle of the crankshaft for engine ignition timing control and fuel injection timing control.
- the elastic body 4, the sleeve 2, and the annular mass body 3 constitute a spring mass system (sub-vibration system), and the natural frequency of the torsional direction is the circumferential direction of the sleeve 2 and the annular mass body 3.
- the vibration frequency band where the amplitude of the torsional vibration of the crankshaft is maximized is set.
- the damper with a trigger plate having the above configuration is extrapolated and fixed to the front end portion of the crankshaft at the boss portion 11 of the hub 1 and is rotated integrally with the crankshaft.
- the secondary vibration system composed of the annular mass body 3, the sleeve 2 and the elastic body 4 is , In the torsional direction with a phase angle opposite to the input vibration Resonance, that is, torque due to the resonance occurs in a direction opposite to the torque of the input vibration (dynamic vibration action), so that the peak of the torsional vibration of the crankshaft can be effectively reduced.
- the front surface of the detection surface of the magnetic sensor 6 is magnetized on the magnetized layer 51 of the trigger plate 5. Since the S and S poles pass alternately, the magnetic sensor 6 generates a pulse signal having a waveform corresponding to the change in the magnetic field. This signal is output to an engine control unit (not shown) as crank angle data for engine ignition timing control and fuel injection timing control.
- the magnetized layer 51 is integrally vulcanized and molded with a vulcanized rubber-like elastic material or synthetic resin material, and then between the sleeve 1 and the sleeve 2 set concentrically with each other, the unvulcanized rubber-like elasticity
- the elastic body 4 is integrally vulcanized and molded by the material, and the axially formed one-piece force is press-fitted into the inner peripheral side of the annular mass 3 in the sleeve 2 by the sleeve 2.
- the sleeve 2 is reduced in diameter in the process of press-fitting the annular mass body 3 into the inner peripheral side, whereby the elastic body 4 is pre-compressed in the radial direction between the hub 1 and the elastic body 4.
- Residual tensile stress due to volumetric shrinkage that occurs during the molding process is reduced or eliminated.
- the trigger plate 5 is integral with the sleeve 2 constituting a part of the sub-vibration system, the number of parts of the damper increases even if the trigger plate 5 is provided.
- the trigger plate 5 is also attached by the above-described press-fitting process.
- the trigger plate 5 since the trigger plate 5 is fixed to the hub 1 by the elastic force 4 and the sleeve 2, the reliability of the crank angle detection by the magnetic sensor 6 is impaired, or the trigger plate 5 is It is possible to reliably prevent the hub 1 from falling off.
- the elastic body 4 is integrally formed between the outer peripheral surface of the hub 1 and the inner peripheral surface of the sleeve 2 fitted to the inner peripheral side of the annular mass body 3 disposed on the outer peripheral side.
- the present invention can also be applied to a so-called fitting type damper in which an elastic body 4 molded into a shape is press-fitted.
- FIG. 6 is a half cross-sectional view showing a sixth embodiment of the damper with a trigger plate according to the present invention by cutting along a plane passing through its axis as such an example.
- the sixth embodiment shown in FIG. 6 differs from the fifth embodiment in that an elastic body 4 that is independently formed into a ring shape is press-fitted between the hub 1 and the sleeve 2. It is in.
- the outer peripheral surface of the rim portion 13 of the hub 1 is a cross-sectional shape cut by a plane passing through the axis.
- the cross-sectional shape shown in FIG. 6 has a shape that is recessed toward the inner periphery so that the intermediate portion in the axial direction forms a curved surface.
- the sleeve 2 has a cross-sectional shape (cross-sectional shape shown in FIG. 6) cut along a plane passing through the axial center so that the axially intermediate portion forms a curved surface corresponding to the outer peripheral surface of the rim portion 13 of the hub 1.
- the both ends in the axial direction and the vicinity thereof are fitted to the cylindrical inner peripheral surface of the mass body 3 with appropriate tightening allowances.
- the annular elastic body 4 is formed in advance in a ring shape (cylindrical shape) with a rubber-like elastic material, and is press-fitted between the rim portion 13 of the hub 1 and the sleeve 2.
- the annular elastic body 4 extends along the outer peripheral surface of the rim portion 13 of the hub 1 and the inner peripheral surface of the sleeve 2 diametrically opposed to the inner peripheral side so that the intermediate portion in the axial direction forms a curved surface. It has a meandering cross-sectional shape, which prevents slippage with respect to the outer peripheral surface of the rim portion 13 of the hub 1 and the inner peripheral surface of the sleeve 2.
- the trigger plate 5 is a rear surface of the outward flange 2a formed integrally from the rear end of the magnetized layer 51 force sleeve 2 of the trigger plate 5 to the outer peripheral side.
- this magnetized layer 51 different magnetic poles (S pole and N pole) alternately in the circumferential direction are magnetized at a predetermined pitch.
- the sixth shaft is extrapolated to the front end of the crankshaft and rotates integrally with the crankshaft, and the amplitude of the torsional vibration of the crankshaft is At the maximum rotational speed range, the secondary vibration system composed of the annular mass 3, sleeve 2 and elastic body 4 revolves in the torsional direction with a phase angle opposite to that of the input vibration. Effectively reduces the torsional vibration peaks of the shaft.
- the trigger plate 5 rotates integrally with the annular mass 3 to
- the magnetic sensor 6 arranged on the surface side outputs a pulse signal as crank angle data for triggering the engine ignition device and the fuel injection device.
- an unvulcanized rubber-like elastic material or a uniform mixture of magnetic fine powders is provided on the back surface of the outward flange portion 2a of the sleeve 2.
- the magnetized layer 51 is integrally vulcanized with a synthetic resin material.
- the sleeve 2 is concentrically disposed on the outer peripheral side of the rim portion 1 3 of the hub 1, and the elastic body 4 is axially pressed between the two 2 and 13 so that the hub 1, the elastic body 4 and the sleeve 2 are pressed. Assemble the assembly.
- the annular mass body 3 is press-fitted from one side in the axial direction to the outer peripheral side of the sleeve 2 in the assembly, and the assembly process of the damper is completed.
- a coupling agent for increasing the slip torque is previously applied to the outer peripheral surface of the rim portion 13 of the hub 1 and the inner peripheral surface of the Z or the sleeve 2 which are fitting surfaces. It is preferable to apply it, thereby facilitating the press-fitting process.
- the trigger plate 5 is integral with the sleeve 2 constituting a part of the sub-vibration system, the number of parts of the damper increases even if the trigger plate 5 is provided.
- the trigger plate 5 is also attached by the above-described press-fitting process.
- the trigger plate 5 since the trigger plate 5 is fixed to the hub 1 by the elastic force 4 and the sleeve 2, the reliability of the crank angle detection by the magnetic sensor 6 is impaired, or the trigger plate 5 is It is possible to reliably prevent the hub 1 from falling off.
- an inward flange portion is integrally formed on the sleeve 2 instead of the outward flange portion 2a, thereby forming an inward trigger plate.
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
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Abstract
Description
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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EP05780893A EP1785643B1 (en) | 2004-08-24 | 2005-08-24 | Damper with trigger plate |
CN2005800279396A CN101006286B (zh) | 2004-08-24 | 2005-08-24 | 带触发板的减震器 |
US11/659,929 US7654906B2 (en) | 2004-08-24 | 2005-08-24 | Damper with trigger plate |
JP2006531937A JP4935986B2 (ja) | 2004-08-24 | 2005-08-24 | トリガプレート付きダンパ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004243276 | 2004-08-24 | ||
JP2004-243276 | 2004-08-24 |
Publications (1)
Publication Number | Publication Date |
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WO2006022280A1 true WO2006022280A1 (ja) | 2006-03-02 |
Family
ID=35967489
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/015322 WO2006022280A1 (ja) | 2004-08-24 | 2005-08-24 | トリガプレート付きダンパ |
Country Status (6)
Country | Link |
---|---|
US (1) | US7654906B2 (ja) |
EP (1) | EP1785643B1 (ja) |
JP (1) | JP4935986B2 (ja) |
KR (1) | KR101211051B1 (ja) |
CN (1) | CN101006286B (ja) |
WO (1) | WO2006022280A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011241907A (ja) * | 2010-05-19 | 2011-12-01 | Nok Corp | トーショナルダンパ及びその製造方法 |
CN107002885A (zh) * | 2014-12-04 | 2017-08-01 | Nok株式会社 | 使用扭振减震器和油封的密封结构 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008004793A1 (de) * | 2008-01-17 | 2009-07-23 | Hasse & Wrede Gmbh | Viskosedrehschwingungdämpfer oder Viskosedrehschwingungstilger zur Reduzierung von Torsionsschwingungen |
US8838367B1 (en) * | 2013-03-12 | 2014-09-16 | Mcalister Technologies, Llc | Rotational sensor and controller |
CN103727175A (zh) * | 2014-01-13 | 2014-04-16 | 天津大学 | 以电磁方式回收振动能量的橡胶扭振减振器 |
KR20160095802A (ko) | 2015-02-04 | 2016-08-12 | 한국후꼬꾸 주식회사 | 트리거 플레이트 일체형 댐퍼풀리 |
EP3453928B1 (en) * | 2016-05-18 | 2023-06-07 | Nok Corporation | Sealing structure in which annular pocket and sealing device are used |
CN109278036A (zh) * | 2018-10-31 | 2019-01-29 | 深圳市优必选科技有限公司 | 输出轴组件及机器人 |
EP3766778B1 (en) * | 2019-07-19 | 2021-11-24 | LEONARDO S.p.A. | Rotor for a hover-capable aircraft |
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JPH0592554U (ja) | 1992-03-19 | 1993-12-17 | エヌ・オー・ケー・メグラスティック株式会社 | ダンパ |
JPH10141441A (ja) | 1996-11-05 | 1998-05-29 | Bridgestone Corp | トーショナルダンパー |
JPH11281312A (ja) | 1998-03-27 | 1999-10-15 | Nissan Diesel Motor Co Ltd | エンジンのクランク角検出装置 |
JP2003148560A (ja) | 2001-11-16 | 2003-05-21 | Nok Corp | トーショナルダンパ及びその製造方法 |
Family Cites Families (6)
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JPH074986A (ja) * | 1993-01-21 | 1995-01-10 | Nippondenso Co Ltd | 基準位置検出装置 |
JPH1048229A (ja) * | 1996-08-07 | 1998-02-20 | Nippon Seiko Kk | 回転速度検出装置付転がり軸受ユニット |
JP2002131082A (ja) * | 2000-10-24 | 2002-05-09 | Uchiyama Mfg Corp | 磁気エンコーダの製造方法 |
US20040233072A1 (en) * | 2001-06-19 | 2004-11-25 | Naoki Morimura | Magnetic member for revolution detector |
CN2508017Y (zh) * | 2001-12-27 | 2002-08-28 | 马新兴 | 霍尔效应式无触点分电器 |
ITTO20030024A1 (it) * | 2003-01-20 | 2004-07-21 | Rft Spa | Dispositivo di comando a ruota fonica |
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2005
- 2005-08-24 JP JP2006531937A patent/JP4935986B2/ja active Active
- 2005-08-24 CN CN2005800279396A patent/CN101006286B/zh active Active
- 2005-08-24 EP EP05780893A patent/EP1785643B1/en active Active
- 2005-08-24 WO PCT/JP2005/015322 patent/WO2006022280A1/ja active Application Filing
- 2005-08-24 KR KR1020077006417A patent/KR101211051B1/ko active IP Right Grant
- 2005-08-24 US US11/659,929 patent/US7654906B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0592554U (ja) | 1992-03-19 | 1993-12-17 | エヌ・オー・ケー・メグラスティック株式会社 | ダンパ |
JPH10141441A (ja) | 1996-11-05 | 1998-05-29 | Bridgestone Corp | トーショナルダンパー |
JPH11281312A (ja) | 1998-03-27 | 1999-10-15 | Nissan Diesel Motor Co Ltd | エンジンのクランク角検出装置 |
JP2003148560A (ja) | 2001-11-16 | 2003-05-21 | Nok Corp | トーショナルダンパ及びその製造方法 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011241907A (ja) * | 2010-05-19 | 2011-12-01 | Nok Corp | トーショナルダンパ及びその製造方法 |
CN107002885A (zh) * | 2014-12-04 | 2017-08-01 | Nok株式会社 | 使用扭振减震器和油封的密封结构 |
US10352451B2 (en) | 2014-12-04 | 2019-07-16 | Nok Corporation | Sealing structure with torsional damper and oil seal |
Also Published As
Publication number | Publication date |
---|---|
JP4935986B2 (ja) | 2012-05-23 |
EP1785643A1 (en) | 2007-05-16 |
KR20070044499A (ko) | 2007-04-27 |
EP1785643A4 (en) | 2010-06-16 |
EP1785643B1 (en) | 2012-10-17 |
KR101211051B1 (ko) | 2012-12-12 |
CN101006286A (zh) | 2007-07-25 |
CN101006286B (zh) | 2011-06-08 |
JPWO2006022280A1 (ja) | 2008-05-08 |
US7654906B2 (en) | 2010-02-02 |
US20070270227A1 (en) | 2007-11-22 |
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