WO2017097254A1 - Convertisseur de couple du type à friction - Google Patents

Convertisseur de couple du type à friction Download PDF

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Publication number
WO2017097254A1
WO2017097254A1 PCT/CN2016/109207 CN2016109207W WO2017097254A1 WO 2017097254 A1 WO2017097254 A1 WO 2017097254A1 CN 2016109207 W CN2016109207 W CN 2016109207W WO 2017097254 A1 WO2017097254 A1 WO 2017097254A1
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WO
WIPO (PCT)
Prior art keywords
roller
outer ring
inner ring
torque converter
ring
Prior art date
Application number
PCT/CN2016/109207
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English (en)
Chinese (zh)
Inventor
许水电
李延福
许涛
许永建
Original Assignee
马鞍山支点传孚智能摩擦工业研究院有限公司
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.)
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Publication of WO2017097254A1 publication Critical patent/WO2017097254A1/fr

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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
    • F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
    • F16H15/48—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members with members having orbital motion
    • F16H15/50—Gearings providing a continuous range of gear ratios
    • 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
    • F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
    • F16H15/48—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members with members having orbital motion
    • F16H15/50—Gearings providing a continuous range of gear ratios
    • F16H15/503—Gearings providing a continuous range of gear ratios in which two members co-operate by means of balls or rollers of uniform effective diameter, not mounted on shafts

Definitions

  • the invention discloses a friction type torque converter, which can realize a transmission system with continuously variable speed and automatic torque change.
  • the most widely used torque converter is a torque converter, also known as a torque converter, which is installed between the engine and the transmission. It uses hydraulic oil (ATF) as the working medium to transmit torque, torque, and speed. The role of clutching. It is a kind of non-rigid torque converter with liquid as working medium. It is one of the types of hydraulic transmission and it is widely used.
  • the torque converter is composed of a pump wheel, a turbine and a guide wheel. The torque converter not only increases the torque of the engine, but also realizes a flexible connection between the engine and the automatic transmission, which effectively solves the engine. The problem of flameout is free to achieve automatic shifting.
  • the main disadvantages of the torque converter are that the structure is complicated, the cost is high, the mass is large, and the transmission efficiency of the machine is reduced due to the loss of hydraulic force, so the fuel economy and traction efficiency of the machine are reduced.
  • some car torque converters have a lock-up clutch to improve transmission efficiency, but complicated systems and expensive transmission components have always been a major problem for the maintenance market and users.
  • the present invention provides a friction type torque converter, which is based on a multi-system research on friction, transmission, materials and lubrication, and changes the shape of the conventional torque converter through a completely new design.
  • the structure of the torque converter improves the transmission efficiency and reduces the cost, and has the advantages of superior performance, strong adaptability, stepless speed change, automatic lockout, and environmental protection.
  • a friction torque converter includes an inner ring, a large roller and an outer ring, wherein:
  • An inner ring which is an input unit, and at least two concave grooves are equally divided on the inner ring side surface of the inner ring, each concave The groove corresponds to one large roller;
  • the outer ring is an output unit, and the outer ring sleeve is disposed outside the inner ring and coaxially disposed with the inner ring, and the inner circumferential surface of the outer ring forms an inner ring inner raceway and is press-fitted with each roller;
  • the large roller is disposed between the inner and outer rings, and has a gap between the large rollers in the adjacent concave grooves.
  • the purpose is that the rollers in each concave groove can be separately transferred from the inner ring input to Outer loop output;
  • each roller realizes adaptive operation under the action of centrifugal force and inner ring, and realizes automatic blocking output and automatic through mechanical friction transmission between inner ring and roller, roller and outer ring. Variable speed and torque.
  • the inner ring of the friction torque converter transmits the force of the large roller to the outer ring.
  • the force changes, and at the same time, the force arm becomes long, and the formula is as follows:
  • T is the torque
  • F is the force that drives the rotation
  • F X is the tangential force of the single roller and the inner race of the outer ring
  • F Y is the radial force of the single roller and the inner race of the outer ring
  • F is the centrifugal force of the large roller
  • ⁇ is the inner ring and the corresponding large roller pressure angle
  • m is the mass of the large roller
  • v is the linear velocity of the large roller relative to the inner race of the outer ring
  • r is the radius of the inner race of the outer ring
  • the torque of the friction torque converter is determined by the force arm, the pressure angle ⁇ , and the centrifugal force of the large roller.
  • the inner ring forms a pressure angle ⁇ with the roller, and the pressure angle ⁇ is 12° to 40°.
  • the ratio D/d of the outer ring inner diameter D to the large roller diameter d is 1.2 to 6, and the ratio D/d of the outer ring inner diameter D to the large roller diameter d determines the length of the force arm L. .
  • the gap s between adjacent large rollers is > 0.2 mm.
  • each small roller has a smaller diameter than the large roller, and the small roller is located on the inner circumferential surface of the inner ring concave groove, and the small roller
  • the outer raceway surface is the inner circumferential surface of the outer ring.
  • the gap between adjacent small rollers and between the large roller and the small roller is s>0.2 mm.
  • the main body of the friction torque converter is composed of an inner ring, a roller and an outer ring.
  • the structure is simple, the reliability is high, the cost is low, and the environment is green.
  • the liquid torque device has low oil temperature, fast transmission response and high transmission efficiency.
  • the friction type torque converter structure of the invention is mainly applied to the fields of automobiles, engineering machinery, military vehicles, petroleum, chemical industry, mining, metallurgical machinery, etc., and is widely used.
  • FIG. 1 is a schematic structural view of an embodiment of the present invention.
  • FIG. 2 is a schematic view showing the force analysis of the friction type large torque roller of the present invention.
  • Fig. 3 is a schematic view showing the rotation of the frictional torque outer ring and the inner ring cam of the present invention.
  • Fig. 4 is a schematic view showing the structure of the present invention including only a large roller.
  • a friction torque converter includes an inner ring 1, a large roller 2 and an outer ring 3, wherein:
  • the inner ring 1 is an input unit, and at least two concave grooves 101 are respectively formed on the inner ring side annular surface to form an inner ring cam, and each concave groove corresponds to one large roller, and three concaves are arranged in FIG. Shape groove and corresponding large roller 2;
  • the outer ring 3 is an output unit, and the outer ring 3 is disposed outside the inner ring 1 and coaxially disposed with the inner ring 1, the outer ring
  • the inner circumferential surface of 3 forms an inner ring inner raceway and is press-fitted with each roller.
  • the pressure cutting means that the roller surface is pressed against the inner ring inner raceway, since both the roller and the outer ring are curved surfaces, two Those must be responsive to each other;
  • the large roller 2 is disposed between the inner and outer rings, and has a gap between the large rollers in the adjacent concave grooves.
  • the purpose is that the rollers in each concave groove are independently transferred and converted by the inner ring 1 input.
  • each roller 2 realizes adaptive operation under the combined action of the centrifugal force and the inner ring 1, and at the same time, through the mechanical friction transmission between the inner ring 1 and the roller 2, the roller 2 and the outer ring 3, Automatic latching output, automatic shifting and torque change.
  • Friction type torque converter the inner ring 1 can be connected with the input shaft to form a power input, and the outer ring 3 can be connected with the output flange or other output parts, and its operation is substantially different from that of the torque converter, and it can be based on The change of load and speed, under the combined action of centrifugal force and inner ring cam, realizes automatic locking, automatic shifting and torque changing through the mechanical friction transmission between the inner ring and the large and small rollers.
  • the friction torque converter structure of the present invention comprises an input shaft, an inner ring cam, a large roller, a small roller, an outer ring and an output flange.
  • the power is transmitted through the input shaft, the input shaft is connected with the inner ring cam; the load is transmitted to the output flange; the inner ring cam is coaxially disposed with the outer ring; and a plurality of large rollers are placed on the circumference between the inner ring cam and the outer ring, and the outer ring is Output flange connection.
  • each small roller 4 has a smaller diameter than the large roller 2, and the small roller 4 is located at the inner ring circumference between the concave grooves of the inner ring.
  • the outer raceway surface of the small roller is the inner circumferential surface of the outer ring.
  • four concave grooves 101 are equally disposed on the circumferential side of the inner ring.
  • the torque increase of the friction torque converter of the present invention is mainly achieved by changing the force of the roller 2 acting on the inner race of the outer ring 3 and changing the force arm.
  • the force acting on the large roller 2 by the inner ring 1 is transmitted to the outer ring 3, at which time the force changes, and at the same time, the force arm also changes from L 1 to L 2 , and the force arm becomes long. details as follows:
  • T is the torque
  • F is the force that drives the rotation
  • F X is the tangential force of the single roller and the inner race of the outer ring
  • F Y is the radial force of the single roller and the inner race of the outer ring
  • F is the centrifugal force of the large roller
  • ⁇ is the inner ring and the corresponding large roller pressure angle
  • m is the mass of the large roller
  • v is the linear velocity of the large roller relative to the inner race of the outer ring
  • r is the radius of the inner race of the outer ring.
  • a concave groove 101 is formed on the outer annular surface of the inner ring 1 to form an inner ring cam, and each concave groove corresponds to a large roller 2, respectively.
  • the ratio D/d of the outer ring inner race diameter D to the large roller diameter d determines the magnitude of the change of the force arm L.
  • L 1 represents the contact point of the inner ring cam concave groove with the large roller to the center of the circle.
  • the distance of o, L 2 represents the distance from the contact point of the outer ring inner raceway to the large roller to the center o, where the larger the D/d value, the smaller the L 2 /L 1 ratio, and the smaller the force arm change ratio, and vice versa.
  • the change factor is long.
  • the diameter of the large roller accounts for 1/6 to 5/6 of the diameter of the inner ring of the outer ring, including all values between 1/6 and 5/6, such as 2/6, 2.5/6, 3/6, 3.5. /6, 4/6, etc., and the multiple corresponding to the change in the force arm is 1.5 to 5.5.
  • the torque converter of the friction torque converter of the invention is determined by the D/d value, the pressure angle ⁇ and the centrifugal force. Therefore, the friction torque converter structure can be designed according to the requirements of the load and working conditions to meet different fields. application.
  • the inner ring is frictionally driven with the large roller, and then the friction between the small roller and the outer ring realizes the operation of the friction torque converter, and finally realizes the functions of automatic shifting and torque change.
  • the number of large rollers corresponds to the inner ring cam groove, and the number of large rollers is two or more.
  • the inner ring cam is difficult to drive the large roller. With the roller for rotary motion, the friction converter does not work properly.
  • the minimum gap s between adjacent rollers of the present invention is greater than 0.2 mm. Due to machining errors and assembly errors, when the gap between adjacent rollers is less than 0.2 mm, the friction torque converter is prone to jamming damage. Therefore, the gap between the rollers cannot be less than 0.2 mm, and the gap s between adjacent rollers of the present invention is greater than 0.2 mm, which not only refers to the gap between adjacent small rollers, but also between large rollers and small rollers.
  • the roller is arranged between the two rollers and can roll. Therefore, the inner ring is frictionally driven with the large roller, and the large roller pushes the adjacent small roller, thereby achieving friction with the small roller and the outer ring. The work of the friction converter.
  • the locking principle of the friction torque converter of the present invention when the rotational speed reaches a certain speed and the load is small, the inner and outer cams are connected and integrated by the large and small rollers under the action of static friction.
  • the roller realizes automatic shifting and torque change under the action of the inner ring cam to meet the load requirements. After a period of action, the speed is increased and the load is reduced.
  • the dynamic friction is automatically switched to the static friction between the large and small rollers and the outer ring.
  • the invention discloses a friction torque converter structure, which comprises an input shaft, an inner ring cam, a large roller, a roller, an outer ring and an output flange.
  • the power is transmitted through the input shaft, the input shaft is connected with the inner ring cam; the load is transmitted to the output flange; the inner ring cam is coaxially disposed with the outer ring; and a plurality of large rollers are placed on the circumference between the inner ring cam and the outer ring, and the outer ring is Output flange connection.
  • the roller realizes adaptive operation under the combined action of centrifugal force and inner ring cam, and finally realizes the lockout output, automatic shifting and torque change of the friction torque converter to meet different applications.
  • the torque converter structure has the advantages of simple structure, high transmission efficiency, stepless speed change, strong self-adaptation, automatic locking function, energy saving and environmental protection.
  • the torque converter structure has the advantages of simple structure, high transmission efficiency, automatic shifting and automatic torque increase according to changes in load and speed, and automatic locking. Change the traditional torque converter shape, reduce costs, adaptability, green and environmental protection, and the effect is remarkable.

Abstract

Un convertisseur de couple à friction comprend une bague intérieure (1), des colonnes de roulement (2) de grandes dimensions, et une bague extérieure (3). La bague intérieure (1) constitue une unité d'entrée, et au moins deux rainures (101) sont ménagées uniformément sur une surface annulaire périphérique de la bague intérieure (1), chaque rainure (101) correspondant à une colonne de roulement (2) de grandes dimensions. La bague extérieure (3) constitue une unité de sortie, la bague extérieure (3) assure un emmanchement de la bague intérieure (1) et est agencée de manière coaxiale avec la bague intérieure (1), et une voie de roulement intérieure de bague extérieure est formée dans une surface circonférentielle côté intérieur de la bague extérieure (3) pour s'adapter à chaque colonne de roulement (2, 4). Lors d'un changement de vitesse de rotation et de charge, les colonnes de roulement (2, 4) peuvent fonctionner de manière adaptative sous l'action conjointe d'une force centrifuge et de la bague intérieure (1) de sorte à mettre en œuvre un blocage de sortie, un changement de vitesse automatique et une conversion de couple du convertisseur de couple de type à friction, de sorte à répondre à différentes applications.
PCT/CN2016/109207 2015-12-11 2016-12-09 Convertisseur de couple du type à friction WO2017097254A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510923328.5A CN105351467B (zh) 2015-12-11 2015-12-11 摩擦式变矩器
CN201510923328.5 2015-12-11

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WO2017097254A1 true WO2017097254A1 (fr) 2017-06-15

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105351467B (zh) * 2015-12-11 2018-11-16 传孚科技（厦门）有限公司 摩擦式变矩器

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US4667525A (en) * 1984-12-19 1987-05-26 Henry Schottler Variable speed frictional drive transmissions
CN1182844A (zh) * 1996-11-18 1998-05-27 王俊卿 离心波无级变矩器
JP2003232150A (ja) * 2002-02-07 2003-08-22 Miwa Lock Co Ltd モータ駆動電気錠の駆動力伝達機構
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CN203892406U (zh) * 2014-05-20 2014-10-22 崔书林 滚柱式超越离合器
CN104976248A (zh) * 2015-06-26 2015-10-14 传孚科技（厦门）有限公司 双向超越离合器
CN105351467A (zh) * 2015-12-11 2016-02-24 传孚科技（厦门）有限公司 摩擦式变矩器
CN205173389U (zh) * 2015-12-11 2016-04-20 传孚科技（厦门）有限公司 摩擦式变矩器

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JPS5614646A (en) * 1979-07-13 1981-02-12 Yamakiyuu Chain Kk Stepless speed changer
CN2090457U (zh) * 1991-03-22 1991-12-11 中国科学院武汉波谱公司 滚珠式同轴变速装置
CN1043808C (zh) * 1995-05-09 1999-06-23 薛南庆 周转轮系刚体机构
GB0220443D0 (en) * 2002-09-03 2002-10-09 Orbital Traction Ltd A continuously variable drive transmission device
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Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4667525A (en) * 1984-12-19 1987-05-26 Henry Schottler Variable speed frictional drive transmissions
CN1182844A (zh) * 1996-11-18 1998-05-27 王俊卿 离心波无级变矩器
JP2003232150A (ja) * 2002-02-07 2003-08-22 Miwa Lock Co Ltd モータ駆動電気錠の駆動力伝達機構
CN203756794U (zh) * 2013-12-25 2014-08-06 陕西科技大学 一种滚柱式超越离合器
CN203892406U (zh) * 2014-05-20 2014-10-22 崔书林 滚柱式超越离合器
CN104976248A (zh) * 2015-06-26 2015-10-14 传孚科技（厦门）有限公司 双向超越离合器
CN105351467A (zh) * 2015-12-11 2016-02-24 传孚科技（厦门）有限公司 摩擦式变矩器
CN205173389U (zh) * 2015-12-11 2016-04-20 传孚科技（厦门）有限公司 摩擦式变矩器

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