WO2018196512A1 - 一种摩擦式单向高阻尼时规张紧器 - Google Patents

一种摩擦式单向高阻尼时规张紧器 Download PDF

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Publication number
WO2018196512A1
WO2018196512A1 PCT/CN2018/079800 CN2018079800W WO2018196512A1 WO 2018196512 A1 WO2018196512 A1 WO 2018196512A1 CN 2018079800 W CN2018079800 W CN 2018079800W WO 2018196512 A1 WO2018196512 A1 WO 2018196512A1
Authority
WO
WIPO (PCT)
Prior art keywords
tensioning arm
spring
arm
tensioner
hole
Prior art date
Application number
PCT/CN2018/079800
Other languages
English (en)
French (fr)
Inventor
王文焕
Original Assignee
江苏爱尔特实业有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 江苏爱尔特实业有限公司 filed Critical 江苏爱尔特实业有限公司
Publication of WO2018196512A1 publication Critical patent/WO2018196512A1/zh

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H7/00Gearings for conveying rotary motion by endless flexible members
    • F16H7/08Means for varying tension of belts, ropes, or chains
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H7/00Gearings for conveying rotary motion by endless flexible members
    • F16H7/08Means for varying tension of belts, ropes, or chains
    • F16H7/10Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
    • F16H7/12Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
    • F16H7/1209Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley with vibration damping means
    • F16H7/1218Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley with vibration damping means of the dry friction type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H7/00Gearings for conveying rotary motion by endless flexible members
    • F16H7/08Means for varying tension of belts, ropes, or chains
    • F16H7/0829Means for varying tension of belts, ropes, or chains with vibration damping means
    • F16H7/0831Means for varying tension of belts, ropes, or chains with vibration damping means of the dry friction type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02Valve drive
    • F01L1/024Belt drive
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H7/00Gearings for conveying rotary motion by endless flexible members
    • F16H7/08Means for varying tension of belts, ropes, or chains
    • F16H2007/0802Actuators for final output members
    • F16H2007/081Torsion springs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H7/00Gearings for conveying rotary motion by endless flexible members
    • F16H7/08Means for varying tension of belts, ropes, or chains
    • F16H2007/0842Mounting or support of tensioner
    • F16H2007/0844Mounting elements essentially within boundaries of final output members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H7/00Gearings for conveying rotary motion by endless flexible members
    • F16H7/08Means for varying tension of belts, ropes, or chains
    • F16H2007/0863Finally actuated members, e.g. constructional details thereof
    • F16H2007/0865Pulleys
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H7/00Gearings for conveying rotary motion by endless flexible members
    • F16H7/08Means for varying tension of belts, ropes, or chains
    • F16H2007/0889Path of movement of the finally actuated member
    • F16H2007/0893Circular path

Definitions

  • a friction type unidirectional high damping ⁇ gauge tensioner [0001] A friction type unidirectional high damping ⁇ gauge tensioner.
  • the gauge belt tensioner has a damping structure that typically has damping characteristics and tends to reduce vibration and noise to a level that is less noticeable to the customer. Further, usually the squatting system can not reduce the vibration very quickly, and can not effectively absorb the energy generated by the East, the operation of the vehicle engine will generate a large number of related vibrations, and the tamper tensioner may fail. The belt jumps.
  • the gauge tensioner is used to reduce vibration and noise associated with the engine of the vehicle.
  • the tensioner comprises: a tensioning arm with a cylindrical protrusion at one end; a surface of the cylindrical protrusion has at least one counterbore, and a center of the cylindrical protrusion has a through hole; a shaft is located in the inner hole, Zhang
  • the tension arm is rotatable about the shaft; a spring is located at the other end of the tensioning arm, opposite the first end, the spring biases the tensioning arm in one direction;
  • the damping structure includes a clamp seat coupled with the tensioning arm, and the damping structure limits the tension The arm is rotated in the opposite direction.
  • the gauge tensioner is used to reduce vibration and noise associated with the engine of the vehicle.
  • the tensioner comprises: a tensioning arm with one end and a cylindrical protrusion; the surface of the cylindrical protrusion has at least one sink a hole, and the center of the cylindrical protrusion has a through hole; a shaft is located in the inner hole, the tension arm is rotatable about the shaft; a spring is located at the other end of the tension arm, opposite to the first end, the spring is tensioned
  • the arm is eccentric in one direction; the damping structure includes a clip seat coupled to the tensioning arm, and the damping structure limits the tensioning arm from rotating in the opposite direction.
  • the gauge tensioner is used to reduce vibration and noise associated with the engine of the vehicle.
  • the tensioner comprises: a tensioning arm with a cylindrical protrusion at one end; a surface of the cylindrical protrusion has at least one counterbore, and a center of the cylindrical protrusion has a through hole; a shaft is located in the inner hole, Zhang
  • the tension arm can be rotated around the shaft; a spring is located at the other end of the tensioning arm, opposite the first end, the spring biases the tensioning arm in one direction; a friction pad contains at least one boss contour and at least one counterbore The contour conforms; a fixed bottom plate having a pin hole on the outer surface;
  • the damping structure includes a clamp seat coupled to a portion of the tensioning arm, the damping structure restricts the tensioning arm from rotating in one direction; the first insertion of a pin a pin hole, the second pin hole is located on the outer surface of the tensioning arm, and the first pin hole is opposite to the second pin hole
  • FIG. 4 is a pulley according to the principles of the present invention, including an outer ring and a bearing;
  • FIG. 5 is a friction pad in accordance with the principles of the present invention.
  • FIG. 6 is a self-lubricating bearing in accordance with the principles of the present invention.
  • FIG. 7 is a tensioning arm and pulley in accordance with the principles of the present invention.
  • FIG. 10 is an exploded view of a damping structure in accordance with the principles of the present invention. [0020] FIG.
  • FIG. 11 is an exploded view of a friction type unidirectional high damping gauge tensioner in accordance with the principles of the present invention.
  • Automotive engines such as spark-ignition internal combustion engines, include gasoline, diesel, hybrid engines, and other suitable spark-ignition internal combustion engines.
  • the automotive engine includes an engine block system to control, for example, the ignition turbulence.
  • the piston in the combustion chamber compresses the fuel near the final compression stroke and produces a spark. Controlling the ignition time will affect the performance of the car's engine and will also increase the fuel efficiency of the engine. For example, in the compression stroke of the piston, sparks appearing too early or too late can generate excessive vibration or noise. Improper control of the ignition cycle can cause damage to the engine. As customer demand expectations continue to increase, customers' need to reduce vibration and noise is becoming increasingly important.
  • the ⁇ gauge tensioner with a damped structure in the engine's positive slewing system reduces the vibration and noise that customers need to pay attention to.
  • the damper mechanism included in the tamper tensioner has a small damping characteristic, which can reduce the entire vibration and noise to a very limited extent.
  • a typical gauge tensioner does not rapidly reduce vibration and does not effectively absorb the energy generated by vibration. Automotive engines have large engine torsional vibrations, and such typical gauge tensioners may be ineffective and cause the belt to jump. Therefore, the friction type unidirectional high damping gauge tensioner is an ideal choice.
  • the engine positive sluice system includes a frictional unidirectional high damping ⁇ gauge tensioner that can accommodate the greater friction generated by the tensioning arm rotating in the first direction in the squat system, and can also Adapts to the small friction generated by the tensioning arm rotating in the second direction in the positive squeezing system.
  • the friction braking force generated by the friction type unidirectional high damping gauge tensioner can effectively suppress or reduce the jitter, vibration, noise, etc. generated by the positive belt during the swinging of the tension arm.
  • FIG. 1 illustrates a one-way high damping tensioner 10 that can be used on a previously described automotive engine, such as a spark-ignition internal combustion engine.
  • the tensioner 10 is used to control the ignition distribution of the engine. Additionally, the tensioner 10 is adapted to reduce or eliminate vibration and noise from the belt or other engine components.
  • the tensioner 10 includes a fixed bottom plate 20 including a central hole 22 and a fixed base plate. Stop 24. The fixed stop 24 and some portion of the engine cooperate to limit the circular motion of the fixed base 20 relative to the engine.
  • the fixed bottom plate includes a spring seat hole 26, a pin hole 28 and a fixed bottom plate block 30.
  • the tensioner 10 includes a tensioning arm 32 that includes a pin hole 34, a first stop 36 and a second stop 38.
  • the first stop 36 is located at one end of the recess 40
  • the second stopper is located at the other end opposite the recess 40.
  • the recess 40 includes an arcuate profile within the tensioning arm 32 that includes at least a portion of the inner circumferential contour of the tensioning arm 32.
  • the long tensioning arm 32 includes an inner bore 42 that extends beyond the tensioning arm to form a raised cylindrical body 44.
  • the long arm 32 rotates about the inner bore, and the long arm 32 includes a spring seat hole 46 which is located on the extension of the long arm 32.
  • the long arm 32 includes one or more counterbore 32 located on the upper surface of the cylindrical projection 44, which is located adjacent one or more counterbore 48.
  • the tensioner 10 includes a pulley 52 that includes a pulley outer ring 54 that includes an inner bore 56 defined by the inner contour of the outer ring 54.
  • the pulley 52 includes a bearing 58.
  • the bearing 58 includes an inner bore 62 extending straight from one end of the bearing 58 to the other end of the bearing 58 up to the outer race 60.
  • the inner bore 56 of the pulley outer race 54 and the outer race 60 of the bearing 58 cooperate.
  • bearing 58 and inner bore 56 are interference fits.
  • the tensioner 10 includes a friction pad 64.
  • Friction washer 64 includes one or more bosses 66.
  • One or more bosses 66 are located on the surface of the friction pad 64 and extend from the friction pad 64.
  • One or more bosses 66 are generally cylindrical in shape for receiving corresponding counterbore holes 48 in the long tension arms 32.
  • the friction pad 64 includes a perforation 65. The perforation 65 passes through the friction pad 64 and is located adjacent the boss 66.
  • the tensioner 10 includes a self-lubricating bearing 68, which is typically a cylindrical body.
  • the moisturizing bearing 68 includes an inner contour 70 and an outer contour. 72.
  • the inner contour 70 defines an inner diameter 74 that extends from one end of the moisturizing bearing to the other.
  • the outer contour 72 defines the outer surface of the self-lubricating bearing 66.
  • the moisturizing bearing and the inner bore 42 of the long-tight arm 32 are mated.
  • the moisturizing bearing 68 and the inner bore 42 are interference fits.
  • the pulley 52 includes a pulley outer ring 54, a bearing 58 for mating with the long tension arm 32.
  • the inner bore 62 of the bearing 58 and the contour of the cylindrical projection 44 of the tensioning arm 32 are adapted. Cylindrical projection 4 4 and the inner hole 62 has an interference fit.
  • the tensioner 10 includes a shaft 76.
  • the shaft 76 cooperates with the inner diameter 74 of the moisturizing bearing 68.
  • the shaft 76 includes an outer surface 78 and a second outer surface 80.
  • the first outer surface 78 is generally cylindrical, larger than the outer surface 80 of the same cylinder.
  • the second surface 80 of the shaft 76 snaps into and through the inner diameter 74.
  • the first outer surface 78 and the inner diameter 74 are interference fit.
  • the shaft 76 includes a fixed stop 82 at one end of the shaft 76 at the other end of the second outer surface 80.
  • the contour of the fixed stop 82 prevents the shaft 76 from passing over the inner diameter 74 across the self-lubricating bearing 68.
  • the inner diameter of the fixed stop 82 is larger than the inner diameter 74, so that the fixed stop 82 does not pass through the inner diameter 74.
  • the tensioner includes a spring 84.
  • the spring 84 includes a first spring hook 86 located at a port of the spring 84.
  • the spring 84 includes a second spring hook 88 located at the other port of the spring 84.
  • the second spring hook 88 snaps into the spring seat hole 26 of the fixed base plate 20.
  • the first spring hook 86 is snapped into the spring seat hole of the tensioning arm 32.
  • the tensioner 10 includes a damping structure 90.
  • Damping structure 90 is used to reduce or eliminate vibration and noise generated by the belt or other components of the engine.
  • Damping structure 90 includes a clamp seat 92, a clamp 94 and a damper seat 96.
  • the damper seat 92 includes a clamp bottom 98.
  • the clamp bottom 98 is located at one end of the clamp seat 92.
  • the clip bottom 98 includes an extension portion 97 at one end of the clip bottom 98 at the other end of the clip seat. The extension extends from the bottom 98 of the clip.
  • the ferrule holder 92 includes a plurality of engaging portions 99, and the plurality of engaging portions 99 are located on the inner surface of the ferrule holder 92, and the plurality of engaging portions 99 extend from the inner surface of the ferrule holder 92 toward the center.
  • the plurality of engaging portions are spaced apart and radially disposed inside the circumference of the clip 92.
  • the clip 94 includes an inner surface 100.
  • the clip 94 includes a first curved portion 102 at one end of the clip 94, and the clip 94 includes a second curved portion 104 at the other end of the clip 94.
  • the damper seat 96 includes an outer circular surface 106 and an inner circular surface 108. The inner surface 100 of the clip 94 is tightly coupled to the outer surface of the damper seat 96 such that the clip 94 is properly secured to the damper mount 96.
  • the damper mount 96 includes a bottom portion 110 that is located at one end of the damper mount 96 and is generally annular.
  • the annular structure allows the clip 94 to be caught on the damper seat 96 through the bottom portion 110.
  • the damper seat 96 and the snap spring 94 secure the clamp seat 92.
  • the first curved portion 102 of the clip 94 mates with at least one of the engaging portions 99, and the second curved portion 104 is engaged with at least one of the engaging portions 99 such that the clip 94 is snapped into the clip seat 92.
  • the 11 is a friction type unidirectional high damping gauge tensioner 10 including a fixed bottom plate 20, a damping structure 90, a spring 84, a long tightening arm 32, a pulley 52, a friction pad 64, a shaft 76, and The pin 120.
  • the pulley 52 and the long arm 32 cooperate.
  • the inner diameter 42 of the self-lubricating bearing 68 and the long-tightening arm 32 cooperate.
  • the spring 84 cooperates with the long tension arm 32.
  • the friction pad fits over the portion below the pulley 52.
  • the friction pad 64 includes one or more bosses 66. One or more bosses are used to receive the counterbore 48 on the tensioning arm such that the friction pad 64 snaps into the tensioning arm 32.
  • the shaft 76 and the long inner arm inner diameter 42 cooperate, and the shaft 76 includes a first outer circular surface 78 and a second outer circular surface 80.
  • the shaft 76 can pass through the aperture 65 of the friction pad 64 - straight through the inner bore 42 of the tensioning arm 32.
  • the first outer surface 78 is pressed into the inner diameter 42, such that the first outer surface 78 and the inner diameter 42 are sufficiently bonded.
  • the second outer surface 80 passes through the inner diameter 42.
  • the fixed stop 82 of the shaft 76 is in contact with a portion of the friction pad 64 to prevent the shaft 76 from passing through the friction pad 64.
  • the second outer surface 80 of the shaft 76 is in contact with the inner circular surface of the damper seat 96, and the damper seat is located inside the clip seat 92.
  • the second outer surface 80 snaps into the inner circular surface 108 of the damper seat 96.
  • the tensioning arm 32 is advertised around the axis 76.
  • the first outer surface 78 of the shaft 76 engages with the inner circular surface 70 of the self-lubricating bearing 68.
  • the self-lubricating bearing 68 allows the tensioning arm 32 to rotate about the shaft 76.
  • the damping structure 90 and the tensioning arm 32 are combined.
  • the clip bottom 98 includes an extension portion 97.
  • the extension portion 97 is combined with the recess 40 of the long tension arm 32.
  • the extension portion 97 includes a contour corresponding to the groove 40.
  • the extended portion 97 is caught in the recess 40.
  • the fixed bottom plate 20 cooperates with the damping structure 90.
  • the damper structure 90 is combined with the upper central bore 22 of the fixed base plate 20.
  • the fixed base plate 20 is secured to the elongated arm 32.
  • the tensioning arm 10 includes a latch 120.
  • the latch 120 is snapped into the pin hole 34.
  • the pin 120 passes through the pin hole 34 - straight into the pin hole 28.
  • the latch 120 secures the fixed base plate 20 and the tensioning arm 32 together.
  • the latch 120 may include some threads at the end of the pin 120 that are threaded into the pin bore 34. Pin holes 34 or pin holes 28 are used to mate with some of the threads so that the pins 120 can be secured to the pin holes 34 or pin holes 28.
  • the friction pad 64 creates a greater frictional force.
  • the damping structure 90 limits the rotation of the tensioning arm 32 in the second direction.
  • the damping structure 90 can be directed to the tensioning arm 3 2 provides frictional resistance.
  • the spring 84 provides an initial torque to the tensioning arm 32.
  • the spring 84 provides a force to the tensioning arm 32 at the initial position to eccentric the tensioning arm 32.
  • the tensioning arm is rotated about the shaft 76, the force applied by the spring to the tensioning arm 32 returns the tensioning arm 32 to the initial position.
  • the positive ankle belt is coupled at one end of the belt to the tensioner 10, and the other one or more of the engine's orthodontic system components and the orthodontic belt are coupled at the other end of the belt for rotation.
  • the one or more sturdy system parts rotate the positive belt and the positive belt rotates the tensioning arm 32 about the shaft 76.
  • Damping Structure 90 Limits the tensioning arm 32 to rotate in the direction of the positive belt rotation (such as the second direction), reducing vibration and noise.
  • the spring 84 biases the tensioning arm 32 back to the initial position, controlling the movement of the tensioning arm 32, thus reducing the vibration and noise generated by the tensioner 10, the positive belt and the engine.
  • the fixed base plate 20 is secured to the engine guest.
  • a wrench or other suitable tool for the hex seat hole 50 to adjust the tensioning arm 32 in the direction of the boring pin.
  • the wrench contains a hex wrench that fits into the hex socket 50.
  • the tensioning arm 32 adjusts the weir in the direction of the needle, the torque on the tensioning arm 32 becomes larger as the spring acts.
  • the tensioning arm 32 is coupled to the clamp bottom 98, and the clamp 94 produces a positive pressure on the damper seat 96.
  • the damper seat 96 and the shaft 76 cooperate to create a greater positive pressure within the tensioning arm 10 .
  • a greater friction is generated. That is, greater damping.
  • the damping generated by the rotation suppresses the swing of the orthodontic belt relative to the tensioner 10.
  • the force of the spring 84 acting on the tensioning arm 32 causes the tensioning arm 32 to rotate in the direction of the counterclockwise direction.
  • the tensioning arm 32 is rotated in the direction of the counter-twist, the torque on the tensioning arm is reduced.
  • the tensioning arm 32 reaches the first position, the tensioning arm is in contact with the clamp bottom 98.
  • the reverse needle of the tensioning arm 32 rotates to drive the clamp 94 to rotate against the needle.
  • the tension between the clamp 94 and the clamp seat 92 is reduced, and the friction between the clamp 94 and the clamp seat 92 is reduced.
  • the tensioning arm 32 can quickly tension the belt and other parts of the engine.
  • the tensioning arm is mounted on an automotive engine as described above.
  • the engine When the engine is started, the engine produces higher torsional vibrations due to the initial combustion of fuel in the engine cylinders.
  • the tensioner 10 quickly tensions the belt.
  • the tensioning arm 32 drives the damping structure 90 to rotate toward the first position. For example, the tensioning arm 32 slowly moves the clamp seat to create friction and high damping. High damping prevents excessive vibration of the positive belt.
  • the tensioner 10 provides high damping in order to control the jitter of the positive belt.
  • the tensioning arm may comprise a self-lubricating bearing located in the inner bore
  • the tensioner may comprise a friction washer, the friction washer having at least one boss, the contour of the boss corresponding to the contour of the counterbore.
  • the spring includes a first end point and a second end point. The first end of the spring snaps into the first spring seat bore on the inner surface of the long tension arm, and the second end of the spring snaps into the second spring seat bore on the inner surface of the long tension arm away from the first spring seat bore.
  • the tensioner may include a pulley that includes a pulley outer ring and a bearing. The pulley outer ring is for receiving the bearing, and the bearing includes a perforation for receiving a portion of the long tension arm.
  • the tensioner includes a fixed bottom plate including a first pin hole located on an outer surface of the fixed bottom plate.
  • the tensioner includes a second pin hole located on an outer surface of the tensioning arm.
  • the tensioner When the first pin hole and the second pin hole are aligned, the tensioner includes a pin for receiving the first pin hole and the second pin hole.
  • the damping structure includes a clip that includes a first curved portion and a second curved portion. The first curved portion is for coupling with the joint portion of the damper seat, and the second curved portion is for combining with the other joint portion of the damper seat.
  • an engine tamper tensioner for reducing vibration and noise generated by an automobile engine includes: the tensioning arm has a cylindrical convex portion, and the protruding portion extends from one end of the tensioning arm.
  • the cylindrical projection has at least one counterbore on one surface, and the inner bore passes through the cylindrical projection.
  • the shaft and the inner bore cooperate, the tensioning arm rotates about the shaft, and the spring is located on the second side of the long arm, opposite the first side, and the spring biases the tensioning arm toward the first direction.
  • the damper structure includes a damper seat that engages a portion of the long arm that limits the rotation of the long arm in the second direction, as opposed to the first direction.
  • a tensioner includes: a tensioning arm having a convex portion, the convex portion having an inner hole passing through the protruding portion, the shaft and the inner hole cooperating, and the tensioning arm is wound around The shaft rotates, the spring is inside the tensioning arm, and the spring eccentrically biases the tensioning arm in the first direction.
  • the damper mechanism includes a damper seat that acts on a portion of the tensioning arm that limits rotation of the tensioning arm in a second direction, opposite the first direction.
  • a system includes: a tensioning arm having a cylindrical raised portion, the cylindrical raised portion having at least one counterbore, a surface at the raised portion, and an internal bore extending through the raised portion.
  • the shaft and the inner bore act, and the tensioning arm rotates about the shaft.
  • the spring is adjacent the second end of the tensioning arm opposite the first end. The spring is used to eccentric the tensioning arm in the first direction.
  • the friction pad includes at least one boss, and the contour of the boss corresponds to the contour of the counterbore.
  • the fixed bottom plate includes a first pin hole located on an outer surface of the fixed bottom plate.
  • the damper structure includes a damper seat that interacts with a ground portion of the long arm, and the damper mechanism limits the rotation of the long arm in the second direction, opposite the first direction.

Abstract

用于减少振动和噪音的发动机时规张紧器包含:张紧臂,从张紧臂第一端延伸出去的圆柱状凸出部分,圆柱凸出部分的表面至少有一个沉孔,内孔穿过圆柱状凸出部分。接收内孔的轴,张紧臂绕轴旋转,弹簧位于张紧臂的另外一端,和第一端相反,弹簧使张紧臂在第一方向上偏心,阻尼结构包括卡箍座,用于和长紧臂的一部分结合,阻尼结构限制张紧臂在第二方向旋转,和第一方向相反。

Description

一种摩擦式单向高阻尼时规张紧器 技术领域
[0001] 一种摩擦式单向高阻尼吋规张紧器。
背景技术
[0002] 汽油或者柴油车辆发动机, 会产生振动和噪音。 这些振动或者噪音可能与发动 机的吋规系统相关。 随着顾客期望的持续增长, 降低发动机振动和噪音变得更 加重要。 一般来说, 顾客觉察振动和噪音的程度会因为带有阻尼结构的吋规张 紧器的吋规系统而降低。
[0003] 吋规皮带张紧器带有一个阻尼结构, 通常带有阻尼特性和趋于将振动和噪音降 到顾客不易察觉的程度。 进一步讲, 通常吋规系统不能很快降低振动, 并且不 能有效的吸收正东产生的能量, 车辆发动机的运转会产生大量的相关的振动, 这种吋规张紧器可能失效弓 I起吋规皮带跳齿。
技术问题
[0004] 为了解决现有的吋规张紧器可能失效弓 I起吋规皮带跳齿的问题。
问题的解决方案
技术解决方案
[0005] 一种摩擦式单向高阻尼吋规张紧器的实施。
[0006] 公幵文件的一方面是吋规张紧器用于降低车辆发动机相关的振动和噪音。 张紧 器包含: 一端又一个圆柱状凸起的张紧臂; 圆柱状凸起的表面至少有一个沉孔 , 并且圆柱状凸起中心有一个贯穿的内孔; 一个轴位于内孔中, 张紧臂可绕轴 旋转; 一个弹簧位于张紧臂的另一端, 与第一端相对, 弹簧使张紧臂沿一个方 向偏心; 阻尼结构包含一个卡箍座与张紧臂结合, 阻尼结构限制张紧臂向相反 方向旋转。
[0007] 公幵文件的另一方面是吋规张紧器用于降低车辆发动机相关的振动和噪音。 张 紧器包含: 一端又一个圆柱状凸起的张紧臂; 圆柱状凸起的表面至少有一个沉 孔, 并且圆柱状凸起中心有一个贯穿的内孔; 一个轴位于内孔中, 张紧臂可绕 轴旋转; 一个弹簧位于张紧臂的另一端, 与第一端相对, 弹簧使张紧臂沿一个 方向偏心; 阻尼结构包含一个卡箍座与张紧臂结合, 阻尼结构限制张紧臂向相 反方向旋转。
[0008] 公幵文件的另一方面是吋规张紧器用于降低车辆发动机相关的振动和噪音。 张 紧器包含: 一端又一个圆柱状凸起的张紧臂; 圆柱状凸起的表面至少有一个沉 孔, 并且圆柱状凸起中心有一个贯穿的内孔; 一个轴位于内孔中, 张紧臂可绕 轴需转; 一个弹簧位于张紧臂的另一端, 与第一端相对, 弹簧使张紧臂沿一个 方向偏心; 一个摩擦垫片含有至少一个凸台的轮廓与至少一个沉孔的轮廓相符 ; 一个外表面有一个销孔的固定底板; 阻尼结构包含一个与张紧臂一部分结合 的卡箍座, 阻尼结构限制张紧臂从一个方向向另一个方向旋转; 一个插销插入 第一个销孔, 第二个销孔位于张紧臂的外表面, 第一个销孔与第二个销孔相对
[0009] 公幵文件涉及到的在外形, 功能, 原理, 实现的变化, 以及方法, 装置, 进程 和算法的体现, 会做进一步详细描述。
发明的有益效果
对附图的简要说明
附图说明
[0010] 对应相关图纸可以更好地理解详细的描述。 通常, 图纸的很多特点并不按比例 伸缩。 相反, 为了清楚说明, 很多特点的尺寸被明显放大或缩小。
[0011] 图 1是本发明所揭示的摩擦式单向高阻尼吋规张紧器;
[0012] 图 2是根据本发明原理的固定底板;
[0013] 图 3是根据本发明原理的张紧臂;
[0014] 图 4是根据本发明原理的带轮, 包含外圈和轴承;
[0015] 图 5是根据本发明原理的摩擦垫片;
[0016] 图 6是根据本发明原理的自润轴承;
[0017] 图 7是根据本发明原理的张紧臂和带轮;
[0018] 图 8是根据本发明原理的轴; [0019] 图 9是根据本发明原理的弹簧;
[0020] 图 10是根据本发明原理的阻尼结构爆炸图;
[0021] 图 11是根据本发明原理的摩擦式单向高阻尼吋规张紧器的爆炸图。
本发明的实施方式
[0022] 汽车发动机, 例如火花点火式内燃机包含汽油, 柴油, 混合动力发动机, 以及 其他相适用的火花点火式内燃发动机。 汽车发动机包含发动机正吋系统以控制 比如点火吋间。 燃烧室内活塞在接近最后压缩行程压缩燃料吋会产生火花。 控 制点火吋间会影响汽车发动机的性能, 也会提高发动机燃油效率。 比如在活塞 的压缩行程中, 火花出现过早或过晚会产生多余的振动或噪音。 当点火吋间控 制不合理会对发动机产生损害。 由于客户需求期望不断提高, 客户对减少振动 和噪音的需求变得越来越重要。 发动机正吋系统内带阻尼结构的吋规张紧器能 减少客户需要重视的振动和噪音。
[0023] 吋规张紧器包含的阻尼机构有较小阻尼的特点, 能把整个振动和噪音减少到很 有限的程度。 典型的吋规张紧器不能迅速减少振动, 并不能有效地吸收由振动 产生的能量。 汽车发动机有较大的发动机扭转振动量, 这类典型的吋规张紧器 可能无效并导致正吋皮带跳齿。 所以摩擦式单向高阻尼吋规张紧器是一种理想 的选择。
[0024] 在一些实例中, 发动机正吋系统包含摩擦式单向高阻尼吋规张紧器, 能适应张 紧臂在正吋系统里绕第一方向旋转所产生的较大摩擦力, 也能适应张紧臂在正 吋系统里绕第二方向旋转所产生的较小的摩擦力。 摩擦式单向高阻尼吋规张紧 器产生的摩擦制动力能有效抑制或减少在张紧臂摆动过程中正吋皮带产生的跳 动, 振动, 噪音等。
[0025] 根据本发明, 图 1展示了单向高阻尼张紧器 10, 该张紧器可以用在之前描述过 的汽车发动机上, 比如火花点火式内燃发动机。 张紧器 10用于控制发动机的点 火分配。 另外, 张紧器 10适用于减少或者消除正吋皮带或其他发动机零件的振 动和噪音。
[0026] 如图 2所示, 张紧器 10包含一个固定底板 20, 该固定底板包含中心孔 22和固定 挡块 24.固定挡块 24和发动机某部分配合限制固定底板 20相对于发动机的圆周运 动。 在一些实例中, 固定底板包含弹簧座孔 26, 插销孔 28和固定底板挡块 30.
[0027] 如图 3所示, 张紧器 10包含张紧臂 32, 张紧器 32包含一个销孔 34, 第一挡块 36 和第二挡块 38.在一些实例中, 第一挡块 36位于凹槽 40的一端, 第二挡块位于凹 槽 40对面的另一端。 凹槽 40包含一个弧形轮廓, 位于张紧臂 32内, 至少包含张 紧臂 32—部分的内圆周轮廓。
[0028] 在一些实例中, 长紧臂 32包含一个内孔 42, 内孔 42延伸到张紧臂之外形成了一 个凸起的圆柱体 44。 长紧臂 32绕内孔旋转, 长紧臂 32包含一个弹簧座孔 46, 该 座孔位于长紧臂 32外延部分上。 长紧臂 32包含一个或者更多的沉孔 32, 该沉孔 位于圆柱凸出部分 44的上表面, 六角孔 50位于一个或者多个沉孔 48的附近。
[0029] 在一些实例中, 如图 4A-4C所示, 张紧器 10包含一个带轮 52, 带轮 52包含带轮 外圈 54, 外圈包含由外圈 54内部轮廓定义的内孔 56。 带轮 52包含一个轴承 58.轴 承 58包含内孔 62, 内孔 62—直从轴承 58的一端一直延伸到轴承 58的另一端直至 外圈 60.
[0030] 在一些实例中, 带轮外圈 54的内孔 56和轴承 58外圈 60进行配合。 比如轴承 58和 内孔 56是过盈配合。
[0031] 在一些实例中, 如图 5所示, 张紧器 10包含一个摩擦垫片 64。 摩擦垫片 64包含 一个或者多个凸台 66。 一个或多个凸台 66位于摩擦垫片 64的表面, 从摩擦垫片 6 4延伸出去。 一个或多个凸台 66—般是圆柱形, 用于接收长紧臂 32上对应的沉孔 48。 摩擦垫片 64包含穿孔 65.穿孔 65穿过摩擦垫片 64, 位于凸台 66的附近。
[0032] 如图 6所示, 在一些实例中, 张紧器 10包含一个自润轴承 68, 自润轴承 68通常 是圆柱体。 滋润轴承 68包含内部轮廓 70和外部轮廓 72.内部轮廓 70定义了内径 74 , 内径 74从滋润轴承的一端一直延伸到另外一边。 外部轮廓 72定义了自润轴承 6 8的外表面。
[0033] 在一些实例中, 如图 7所示, 滋润轴承和长紧臂 32的内孔 42配合。 比如外轮廓 7
2和内孔 42轮廓相配合。 滋润轴承 68和内孔 42是过盈配合。
[0034] 在一些实例中, 带轮 52包括带轮外圈 54, 轴承 58, 用于和长紧臂 32配合。 比如 说, 轴承 58的内孔 62和张紧臂 32圆柱凸出部分 44的轮廓相适应。 圆柱凸出部分 4 4和内孔 62过盈配合。
[0035] 如图 8所示, 在一些实例中, 张紧器 10包含轴 76。 轴 76和滋润轴承 68的内径 74 相配合。 比如, 轴 76包含外表面 78和第二外表面 80。 第一外表面 78—般为圆柱 体, 比同为圆柱体的外表面 80要更大。
[0036] 在一些实例中, 轴 76的第二表面 80卡入并穿过内径 74。 第一外表面 78和内径 74 过盈配合。 轴 76包含一个固定挡块 82, 固定挡块 82位于轴 76的一端, 在第二外 表面 80的另一端。 固定挡块 82的轮廓避免了轴 76越过自润轴承 68穿过内径 74。 比如, 固定挡块 82的内径比内径 74更大, 这样固定挡块 82就不会穿过内径 74.
[0037] 如图 9所示, 在一些实例中, 张紧器包含一个弹簧 84。 弹簧 84包含第一簧钩 86 , 位于弹簧 84的一个端口。 弹簧 84包含第二簧钩 88, 位于弹簧 84的另一个端口 。 第二簧钩 88卡入固定底板 20上的弹簧座孔 26。 第一簧钩 86卡入张紧臂 32上的 弹簧座孔 46.
[0038] 如图 10所示, 张紧器 10包含一个阻尼结构 90。 阻尼结构 90用于减少或者消除正 吋皮带或者发动机其他零部件产生的振动和噪音。 阻尼结构 90包含一个卡箍座 9 2, 卡箍 94和阻尼座 96。 阻尼座 92包含一个卡箍底 98。 卡箍底 98位于卡箍座 92的 一端。 卡箍底 98包含一个延伸部分 97, 位于卡箍底 98的一端, 在卡箍座的另一 端。 延伸部分从卡箍底 98延伸出去。
[0039] 卡箍座 92包含多个啮合部分 99, 多个啮合部分 99位于卡箍座 92的内表面, 多个 啮合部分 99从卡箍座 92的内表面向中心进行延伸。 多个啮合部分是间隔分布的 , 放射状地布局在卡箍 92的圆周内部。
[0040] 在一些实例中, 卡箍 94包含一个内表面 100。 卡箍 94包含第一弯曲部分 102, 位 于卡箍 94的一端, 卡箍 94包含第二弯曲部分 104, 位于卡箍 94的另一端。 阻尼座 96包含一个外圆面 106和内圆面 108。 卡箍 94的内表面 100和阻尼座 96的外表面紧 密结合, 这样卡箍 94就被恰好地固定在阻尼座 96上面了。
[0041] 在一些实例中, 阻尼座 96包含一个底部 110, 底部 110位于阻尼座 96的一端, 一 般为环形。 环形结构让卡箍 94通过底部 110卡在阻尼座 96上。 阻尼座 96和卡簧 94 固定卡箍座 92。 卡箍 94的第一弯曲部分 102和至少一个啮合部分 99相配合, 第二 弯曲部分 104至少和一个啮合部分 99相配合, 这样卡箍 94就卡入卡箍座 92中。 [0042] 图 11为摩擦式单向高阻尼吋规张紧器 10, 包含一个固定底板 20, 阻尼结构 90, 弹簧 84, 长紧臂 32, 带轮 52, 摩擦垫片 64, 轴 76, 和插销 120.带轮 52和长紧臂 32 相配合。 自润轴承 68和长紧臂 32的内径 42相配合。 弹簧 84和长紧臂 32相配合。 摩擦垫片和带轮 52下面的部分相配合。 摩擦垫片 64包含一个或多个凸台 66.—个 或多个凸台用于接收张紧臂上的沉孔 48, 这样摩擦垫片 64就卡入张紧臂 32。
[0043] 在一些实例中, 轴 76和长紧臂内径 42相配合, 轴 76包含第一外圆面 78和第二外 圆面 80。 轴 76可以穿过摩擦垫片 64的孔 65—直穿过张紧臂 32的内孔 42。 第一外 表面 78压入内径 42, 这样第一外表面 78和内径 42充分结合。 第二外表面 80穿过 内径 42。 轴 76的固定挡块 82和摩擦垫片 64的一部分接触, 避免轴 76穿过摩擦垫 片 64。
[0044] 在一些实例中, 轴 76的第二外表面 80和阻尼座 96的内圆面接触, 阻尼座位于卡 箍座 92里面。 第二外表面 80卡入阻尼座 96的内圆面 108。 张紧臂 32绕轴 76宣传。 当轴 76和张紧臂 32相接触吋, 轴 76的第一外表面 78和自润轴承 68的内圆面 70相 啮合。 自润轴承 68使张紧臂 32可以绕轴 76旋转。
[0045] 在一些实例中, 阻尼结构 90和张紧臂 32结合。 比如, 卡箍底 98包含延伸部分 97. 延伸部分 97和长紧臂 32的凹槽 40相结合。 延伸部分 97包含一个和凹槽 40相对应 的轮廓。 延伸部分 97被卡入凹槽 40。 固定底板 20和阻尼结构 90相配合。 阻尼结 构 90和固定底板 20的上中心孔 22相结合。
[0046] 在一些实例中, 固定底板 20固定在长紧臂 32上。 比如, 当固定底板 20和张紧臂 32相结合吋, 固定底板 20上的销孔 28和张紧臂 32上的销孔 34对齐。 在一些实例 中, 张紧臂 10包含插销 120。 插销 120卡入销孔 34。 插销 120穿过销孔 34—直穿入 销孔 28。 插销 120把固定底板 20和张紧臂 32固定到一起。 插销 120可能包括在插 销 120—端的一些螺纹, 螺纹插入到销孔 34中。 销孔 34或销孔 28用于和一些螺纹 相配合, 这样插销 120就可以固定在销孔 34或销孔 28上了。
[0047] 在一些实例中, 当张紧臂 32绕轴 76在第一方向上旋转吋, 摩擦垫片 64会产生较 大的摩擦力。 当张紧臂 32绕轴 76在和第一方向相反的第二方向上旋转吋, 阻尼 结构 90产生较小摩擦力。 此外, 阻尼结构 90会限制张紧臂 32在第二方向上的旋 转。 当阻尼结构 90限制张紧臂 32在第二方向上旋转吋, 阻尼结构 90能向张紧臂 3 2提供摩擦阻力。
[0048] 在一些实例中, 弹簧 84向张紧臂 32提供初始扭矩。 比如, 弹簧 84在初始位置向 张紧臂 32提供一个力, 使张紧臂 32偏心。 当张紧臂绕轴 76旋转吋, 弹簧向张紧 臂 32施加的力让张紧臂 32回到初始位置。
[0049] 在一些实例中, 正吋皮带在皮带的一端和长紧器 10结合, 其他一个或多个发动 机正吋系统的零件和正吋皮带在皮带的另一端结合, 进行旋转。 一个或多个正 吋系统的零件让正吋皮带旋转, 正吋皮带让张紧臂 32绕轴 76旋转。 阻尼结构 90 限制张紧臂 32在正吋皮带旋转的方向旋转 (比如第二方向) , 降低振动和噪音 。 另外, 弹簧 84让张紧臂 32偏心回到初始位置, 控制张紧臂 32的运动, 这样就 降低了张紧器 10, 正吋皮带和发动机产生的振动和噪音。
[0050] 在一些实例中, 固定底板 20固定在发动机客体上。 通过扳手或其他合适工具作 用于六角座孔 50, 对张紧臂 32在顺吋针方向上进行调节。 扳手包含六角扳手, 可以和六角座孔 50相配合。 当张紧臂 32在顺吋针方向调节吋, 随着弹簧的作用 , 在张紧臂 32上的扭矩会越来越大。 当达到理想正吋角度吋, 张紧臂 32和卡箍 底 98相结合, 卡箍 94在阻尼座 96上产生正压力。 阻尼座 96和轴 76配合在张紧臂 1 0内产生一个更大的正压力。 当张紧臂 32绕轴 76旋转吋, 产生更大的摩擦力。 即 更大的阻尼。 旋转产生的阻尼抑制了正吋皮带相对张紧器 10的摆动。
[0051] 此外, 弹簧 84作用在张紧臂 32的力, 使张紧臂 32在逆吋针方向旋转。 当张紧臂 32在逆吋针方向上旋转, 在张紧臂上的扭力减少。 当张紧臂 32达到第一位置, 张紧臂和和卡箍底 98接触。 张紧臂 32的逆吋针转动, 带动卡箍 94逆吋针转动。 卡箍 94和卡箍座 92之间的张紧力减少, 让卡箍 94和卡箍座 92的摩擦力减少。 在 弹簧 84的作用下, 张紧臂 32能迅速将皮带和发动机其他零件张紧。
[0052] 在一些实例中, 张紧臂安装在如上描述汽车发动机上。 当发动机启动吋, 发动 机会产生较高的扭转振动, 这是因为在发动机气缸内燃料的初始燃烧。 为了减 少正吋皮带的抖动和不理想的运动, 张紧器 10迅速张紧正吋皮带。 另外, 张紧 臂 32带动阻尼结构 90向第一位置旋转。 比如, 张紧臂 32缓慢地带动卡箍座, 产 生摩擦和高阻尼。 高阻尼能抑制正吋皮带多余的振动。 当发动机继续运行, 为 了控制正吋皮带的抖动, 张紧器 10提供高阻尼。 [0053] 张紧臂可能包含位于内孔里的自润轴承, 张紧器可能包含一个摩擦垫片, 摩擦 垫片至少有一个凸台, 凸台的轮廓和沉孔的轮廓相对应。 弹簧包含第一端点和 第二端点。 弹簧第一端点卡入位于长紧臂内表面上的第一弹簧座孔, 弹簧第二 端点卡入长紧臂内表面上远离第一弹簧座孔的第二弹簧座孔。 张紧器可能包含 带轮, 带轮包含一个带轮外圈和一个轴承。 带轮外圈用于接收轴承, 轴承包括 一个穿孔用于接收长紧臂的一部分。 张紧器包含一个固定底板, 固定底板包括 位于固定底板外表面的第一销孔。 张紧器包含位于张紧臂外表面的第二销孔。
[0054] 当第一销孔和第二销孔对齐吋, 张紧器包含用于接收第一销孔和第二销孔的插 销。 阻尼结构包含一个卡箍, 卡箍包含第一弯曲部分和第二弯曲部分。 第一弯 曲部分用于和阻尼座的结合部分相结合, 第二弯曲部分用于和阻尼座的另一结 合部分相结合。
[0055] 在一些实例中, 用于减少汽车发动机产生振动和噪音的发动机吋规张紧器包含 : 张紧臂有一个圆柱形凸出部分, 凸出部分从张紧臂的一端延伸出去。 圆柱形 凸出部分的一个表面上至少有一个沉孔, 内孔穿过圆柱形凸出部分。 轴和内孔 相配合, 张紧臂绕着轴旋转, 弹簧位于长紧臂的第二边, 和第一边相对, 弹簧 向着第一方向使张紧臂偏心。 阻尼结构包含一个阻尼座, 和长紧臂的一部分结 合, 阻尼结构限制了长紧臂在第二方向旋转, 和第一方向相对。
[0056] 在一些实例中, 一个张紧器包含: 带有凸出部分的张紧臂, 凸出部分有一个穿 过凸出部分的内孔, 轴和内孔相配合, 张紧臂绕着轴旋转, 弹簧在张紧臂的里 面, 弹簧在第一方向使张紧臂偏心。 阻尼机构包括阻尼座, 和张紧臂的一部分 进行作用, 阻尼机构在第二方向限制了张紧臂的旋转, 和第一方向相反。
[0057] 在一些实例中, 一个系统包含: 含圆柱凸起部分的张紧臂, 圆柱凸起部分至少 有一个沉孔, 位于凸起部分的表面, 和一个穿过凸起部分的内孔。 轴和内孔作 用, 张紧臂绕着轴旋转。 弹簧靠近张紧臂的第二端, 和第一端相反。 弹簧用于 在第一方向使张紧臂偏心。 摩擦垫片至少包括一个凸台, 凸台的轮廓和沉孔的 轮廓相对应。 固定底板包含第一销孔, 位于固定底板的外表面。 阻尼结构包含 阻尼座, 和长紧臂的地部分相作用, 阻尼机构限制了长紧臂在第二方向旋转, 和第一方向相反。 当第一销孔和第二销孔对齐吋, 插销和第一销孔, 第二销孔 相配合, 第二销孔位于张紧臂外表面。
[0058] 术语"或者"的意思是包括性的"或者", 而不是排他的 "或者"。 在没有特殊说明 的情况下, "X包含 A或 B "是指自然包含的排列。 如果 X包含 A, X包含 B, ^X 同吋包含 和^ 如果" X包含 A或者 B", 满足上述实例中的任一情况。 另外, 在 没有特殊申明的情况下, 文章和附属申明中提及的"一"可以理解为"一或更多"
[0059] 为了方便说明, 上述用到的数字和描述可能包含序列或者步骤顺序, 申明的方 法原理可能以各种不同顺序出现, 或者同吋出现。 另外, 申明的方法原理可能 包含其他没有明确介绍和描述的其他原理。 而且并不要求所描述的方法的所有 原理都根据申明的内容实施方法。 虽然描述的方面, 特点和原理以特定的组合 顺序出现, 每一个方面, 特点和原理可以单独使用或者用各种不同的组合使用 , 或不使用其中任意一点。
[0060] 尽管描述的申明和某些实例或者应用有关, 需要理解的是, 申明不仅局限于申 明的实例和应用, 相反, 申明旨在覆盖各种更改和包含在所附条款的同等范围 内容, 这个范围以最全的解读为准, 以包含所有法律允许的变更和同等结构。

Claims

权利要求书
[权利要求 1] 机动车发动机吋规张紧器用于降低振动和噪音, 包含:
一个圆柱突起从张紧臂的一端延伸出来, 这个圆柱状凸起包含至少一 个沉孔位于圆柱状突起的表面,以及一个内孔贯穿圆柱状凸起; 一个轴位于内孔中, 张紧臂将绕轴旋转;
一个弹簧位于张紧臂的另一端, 与圆柱突起端相反的一端, 这个弹簧 使张紧臂向一个方向偏心;
阻尼结构包含一个与张紧臂一部分结合的卡箍座, 阻尼结构限制张紧 臂从一个方向向另一个方向旋转。
[权利要求 2] 根据权利要求 1所述的张紧器的张紧臂包含一个自润轴承位于内孔中
[权利要求 3] 根据权利要求 1中所述的张紧器, 另外包含一个摩擦垫片, 并且摩擦 垫片含有凸台的轮廓与至少一个沉孔的轮廓相符。
[权利要求 4] 根据权利要求 1中所述的张紧器, 弹簧带有两个端头, 其中一端位于 张紧臂内表面的弹簧孔座, 弹簧另一端位于张紧臂内表面另一端的弹 簧孔座。
[权利要求 5] 根据权利要求 1中所述的张紧器, 还包含一个含有带轮外圈和轴承的 带轮。
[权利要求 6] 根据权利要求 5中所述的张紧器, 带轮外圈用于安装轴承, 轴承有一 个通孔, 作为安装在张紧臂上使用。
[权利要求 7] 根据权利要求 1中所述的张紧器, 包含一个外表面有一个销孔的固定 底板, 以及一个外表面带有另一个销孔的张紧臂。
[权利要求 8] 根据权利要求 7中所述的张紧器, 一个插销插入一个销孔, 另一个销 孔与第一个销孔对齐。
[权利要求 9] 根据权利要求 1中所述的张紧器, 阻尼结构包含一个第一弯曲部分与 卡箍座结合的卡箍, 第二弯曲部分与另一个卡箍座结合。
[权利要求 10] 张紧器包含:
张紧臂带有从张紧臂延伸出来的突起, 一个内孔贯穿这个突起; 一个轴位于内孔, 张紧臂可以绕轴旋转;
一个弹簧位于张紧臂内部, 弹簧使张紧臂沿一个方向偏转; 阻尼结构包含一个卡箍座与张紧臂结合, 阻尼结构限制张紧臂向相反 方向旋转。
11.根据权利要求 10中所述的张紧器, 张紧臂带有一个有内孔的自润 轴承。
12.根据权利要求 10中所述的张紧器, 带有至少一个凸台的摩擦垫片 , 凸台的轮廓与凸起的沉孔轮廓相符, 每一个凸台对应一个沉孔。
13.根据权利要求 10中所述的张紧器, 弹簧有两个端口, 一个端口位 于张紧臂内部的弹簧座孔, 弹簧另一个端位于张紧臂内部与第一个弹 簧座孔相对的另一个弹簧座孔。
14.根据权利要求 10中所述的张紧器, 装有一个有带轮外圈和轴承的 带轮。
15.根据权利要求 14中所述的张紧器, 带轮外圈装有轴承, 轴承带有 内孔, 用于安装在张紧臂上。
16.根据权利要求 10中所述的张紧器, 带有一个外表面有一个销孔的 固定底板, 张紧臂外表面带有另一个销孔。
17.根据权利要求 16中所述的张紧器, 一个插销插入第一个销孔, 第 二个销孔与第一个销孔相对。
18.权利要求第 10项中的张紧器, 阻尼结构包含一个第一弯曲部分与 卡箍座结合的卡箍, 第二弯曲部分与另一个卡箍座结合。
19.该系统包含:
一个圆柱突起从张紧臂的一端延伸出来, 这个圆柱状凸起包含至少一 个位于圆柱状突起表面的沉孔,以及一个内孔贯穿圆柱状凸起; 一个轴位于内孔中, 张紧臂将绕轴旋转;
一个弹簧位于张紧臂的另一端, 与圆柱突起端相反的一端, 这个弹簧 使张紧臂向一个方向偏心;
摩擦垫片上凸台的轮廓与沉孔的轮廓一致; 固定地板的外表面带有一个销孔;
阻尼结构包含一个卡箍座与张紧臂结合, 阻尼结构限制张紧臂向相反 方向旋转;
一个插销插入第一个销孔, 第二个销孔位于张紧臂的外表面, 第一个 销孔与第二个销孔相对。
[权利要求 20] 根据权利要求 19中所述的系统里, 阻尼结构包含一个第一弯曲部分与 卡箍座结合的卡箍, 第二弯曲部分与另一个卡箍座结合。
PCT/CN2018/079800 2017-04-25 2018-03-21 一种摩擦式单向高阻尼时规张紧器 WO2018196512A1 (zh)

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