WO2022087838A1 - Ensemble embrayage - Google Patents

Ensemble embrayage Download PDF

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Publication number
WO2022087838A1
WO2022087838A1 PCT/CN2020/124075 CN2020124075W WO2022087838A1 WO 2022087838 A1 WO2022087838 A1 WO 2022087838A1 CN 2020124075 W CN2020124075 W CN 2020124075W WO 2022087838 A1 WO2022087838 A1 WO 2022087838A1
Authority
WO
WIPO (PCT)
Prior art keywords
clutch assembly
star wheel
concave curved
assembly according
rolling
Prior art date
Application number
PCT/CN2020/124075
Other languages
English (en)
Chinese (zh)
Inventor
许涛
许水电
李延福
严春波
陈志伟
Original Assignee
传孚科技（厦门）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 传孚科技（厦门）有限公司 filed Critical 传孚科技（厦门）有限公司
Priority to PCT/CN2020/124075 priority Critical patent/WO2022087838A1/fr
Priority to CN202080003410.5A priority patent/CN112469914B/zh
Publication of WO2022087838A1 publication Critical patent/WO2022087838A1/fr

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Classifications

    • 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
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls

Definitions

  • Overrunning clutches are widely used in various fields.
  • most of the overrunning clutches are one-way overrunning clutches, also known as one-way bearings, which are used between the prime mover and the working machine or between the driving shaft and the driven shaft inside the machine. It is an important part of the power transmission and disconnection function.
  • the clutch function is realized by the speed change of the main and driven parts or the change of the rotation direction. Relying on the one-way locking principle, the transmission of torque is one-way, and the one-way transmission of power can be realized.
  • the traditional one-way clutch working mode is relatively simple, and can no longer meet the one-way or one-way clutch power between the prime mover and the working machine.
  • the need for multiple working modes such as two-way transfer.
  • the overrunning state and wedging state of the overrunning clutch are realized through the relative rotation between the inner and outer rings.
  • the clutch itself has no additional mechanism to control the working position of the wedge (or roller). Therefore, the problem is that the overrunning clutch only has a one-way overrunning state and a one-way wedging state, and has a single function.
  • the overrunning clutch when the overrunning clutch is required to rotate at a high speed, the driving part and the driven part are completely separated, that is, the active and driven parts can not interfere with each other, and the one-way overrunning of the overrunning clutch is limited. this function.
  • the present invention proposes a clutch assembly to solve the above problems.
  • a clutch assembly includes an outer planetary wheel, an inner planetary wheel, and a plurality of rolling bodies arranged between the outer planetary wheel and the inner planetary wheel, and one of the inner ring of the outer planetary wheel and the outer ring of the inner planetary wheel is provided with A plurality of concave curved grooves, each concave curved groove corresponds to at least one rolling body respectively, and each concave curved groove is respectively formed by connecting at least two curved surfaces.
  • Each rolling element corresponds to a concave curved groove, which makes the structure of the entire clutch assembly simpler and facilitates the assembly of the rolling elements.
  • the other of the inner ring of the outer star wheel and the outer ring of the inner star wheel is a cylindrical surface or is provided with a plurality of concave curved grooves.
  • the clutch assembly further includes an adjustment mechanism for adjusting the rolling elements so that each of the plurality of rolling elements is in contact with one of the two curved surfaces.
  • the adjustment mechanism can realize the function of switching multiple modes of the clutch assembly, thereby improving the functionality of the clutch assembly.
  • the adjustment mechanism is an actuating element disposed on one of the rolling bodies, and the rolling bodies are in close proximity to each other.
  • the rolling elements that are close to each other can realize the linkage of the rolling elements, so that all the rolling elements are switched in the corresponding concave curved grooves synchronously, and are loaded synchronously during operation, so that the stability of the clutch assembly is stronger.
  • grooves are provided at the positions of the inner star wheel and/or the outer star wheel corresponding to the adjustment mechanism, so as to facilitate the displacement of the adjustment mechanism.
  • the groove facilitates the switching function of the adjusting mechanism, and on the other hand, makes the assembly of the components inside the clutch assembly easier.
  • the contour shape of the concave curved groove includes a straight line, a circular arc, or a line segment taken from a logarithmic spiral.
  • the setting of the logarithmic helix can realize the overrunning and self-locking functions of the clutch assembly, improve the relatively single defect of the traditional one-way clutch working mode, and realize the multifunctional integration of the clutch assembly.
  • each concave curved groove is formed by at least two curved surfaces to form 3 areas, which are a forward self-locking area, a reverse self-locking area and an idling area, and the idling area is between the forward self-locking area and the reverse self-locking zone.
  • Multiple logarithmic spirals are used to form multiple working intervals, so that the function of the clutch assembly can be maximized, multiple working modes can be realized, and the use performance of the clutch assembly can be greatly improved.
  • an upper end cap and a lower end cap covering the outer star wheel and the inner star wheel are also included.
  • the upper and lower end caps can fix the rolling elements between the inner and outer star wheels to prevent the rolling elements from separating from the inner and outer star wheels and cause the failure of the clutch function.
  • one of the upper end cap and the lower end cap is provided with a limiting groove in the circumferential direction.
  • the actuating element includes a pin on one of the rolling bodies, and the pin is disposed on the side of the rolling body facing the limiting groove in the upper end cap and the lower end cap.
  • the stud is coupled to the limit slot and protrudes beyond the surface of the clutch assembly.
  • the protruding pin can increase the expandability of the clutch assembly, and other mechanisms can be externally connected to realize the adjustment function of the pin.
  • the limiting slot is an arc-shaped opening structure, and the width of the arc-shaped opening structure is greater than or equal to the diameter of the pin.
  • the limit slots allow the pins to function in various modes of the clutch assembly in various positions.
  • the adjustment mechanism further includes a toggle mechanism, the end of the toggle mechanism is provided with a hole for the pin to pass through, and the toggle mechanism can make the actuating element move left and right in the limiting slot.
  • the toggle mechanism can more conveniently realize the movement of the internal actuating element of the clutch assembly, and can realize switching between various modes of the clutch assembly in combination with specific application situations.
  • the clutch assembly of the present invention realizes linkage load through a plurality of rolling bodies being close to each other, each rolling body corresponds to a concave curved surface groove, and the concave curved surface groove includes two logarithmic spirals, and the reasonable use of the two logarithmic spirals
  • the setting enables the clutch assembly to realize the switching of multiple functions such as two-way overrunning and backstop, and uses the adjusting mechanism to change the corresponding position of the concave curved groove of the rolling elements, thereby realizing various functions of the clutch assembly.
  • the structure of the clutch assembly is simpler. It does not need the structure of springs or cages. It simply relies on the linkage of multiple rolling elements to be loaded to realize the functions of one-way and two-way overrunning of the clutch assembly. It is lightweight and easy to assemble. And the good characteristics of good stability.
  • FIG. 1 is an internal structural diagram of a clutch assembly according to an embodiment of the present invention
  • Figure 2 is a front view of a clutch assembly according to one embodiment of the present invention.
  • FIG. 3 is a rear view of a clutch assembly according to one embodiment of the present invention.
  • FIG. 4 is a structural diagram of a concave curved groove according to an embodiment of the present invention.
  • FIG. 5 is an internal partial structural diagram of the clutch assembly in a forward self-locking state according to an embodiment of the present invention
  • FIG. 6 is an internal partial structural diagram of the clutch assembly in an idling state according to an embodiment of the present invention.
  • FIG. 7 is an internal partial structural diagram of the clutch assembly in reverse self-locking according to an embodiment of the present invention.
  • FIG. 8 is an internal structural diagram of a clutch assembly according to another embodiment of the present invention.
  • FIG. 1 shows an internal structural view of a clutch assembly according to an embodiment of the present invention
  • FIG. 2 is a front view of the main body.
  • the clutch assembly includes an inner star wheel 1 , an outer star wheel 2 , a rolling body 3 , an adjusting mechanism 4 and an upper end cover 5 .
  • the inner ring of the outer star wheel 2 is provided with a plurality of concave curved grooves 22, each concave curved groove 22 corresponds to a rolling body 3, the outer ring of the inner star wheel 1 is a cylindrical surface, and the rolling body 3 Tangent to the cylindrical surface of the outer ring of the inner star wheel 1.
  • the clutch assembly adopts the structure of the inner star wheel 1 , the outer star wheel 2 and the rolling body 3 , which greatly simplifies the overall structure of the clutch assembly and can realize the lightweight of the clutch assembly.
  • the inner ring of the outer star wheel 2 is further provided with a groove 21, and the adjusting mechanism 4 is correspondingly placed in the groove 21.
  • the adjusting mechanism 4 is one of the rolling bodies 3 and is provided for To adjust the actuating element of the clutch assembly mode, the adjustment mechanism 4 adds a column pin 41 on the basis of the rolling body 3.
  • the column pin 41 is cylindrical and is arranged on the top of a certain rolling body 3.
  • the height of the column pin 41 Protruding beyond the surface of the clutch assembly, the upper end cover 5 is provided with a limit groove 51 corresponding to the pin 41 , the limit groove 51 is an arc-shaped opening structure, and the adjustment mechanism 4 is located on the left, middle and right of the groove 21 .
  • the switching of the three positions corresponds to the left, middle and right positions of the pin 41 in the limiting groove 51 respectively.
  • the stud 41 may have other structures than a cylindrical shape, such as a square bar shape or the like.
  • the grooves 21 can also be provided on the outer star wheel 1 or on the inner and outer star wheels at the same time, as long as the adjustment mechanism 4 can be displaced in the groove 21, the technical effect of the present invention can be achieved.
  • the adjusting mechanism 4 further includes a toggle mechanism 42 on the outer side of the clutch assembly.
  • One end of the toggle mechanism 42 is connected to the pin 41.
  • one end of the toggle mechanism 42 is provided with a pin 41 for the toggle mechanism.
  • the left and right movement of the adjustment mechanism 4 in the groove 21 is realized by the left and right swing of the toggle mechanism 42 through the hole passing through.
  • the toggle mechanism 42 can be connected with the control system according to the actual application scenario, and the adjustment mechanism 4 can be moved left and right according to the actual application requirements, so as to realize the switching of various modes of the clutch assembly.
  • the rolling elements 3 are cylindrical structures, a plurality of rolling elements 3 and an adjusting mechanism 4 are adjacent to each other in the annular space formed by the inner star wheel 1 and the outer star wheel 2 , and the adjusting mechanism 4 is in the groove 21 left and right
  • the movement drives the other rolling elements 3 to move left and right in the concave curved groove.
  • the rolling elements 3 can have other structures besides the cylindrical structure.
  • the adjusting mechanism 4 can adopt a spherical structure, which can also achieve the technical effect of the present invention.
  • the multiple rolling elements 3 are close to each other to form a linkage system, so that the multiple rolling elements 3 are loaded synchronously, which can greatly improve the stability of the clutch assembly in actual use.
  • the clutch assembly also includes a lower end cover 6, the inner star wheel 1 and the outer star wheel 2 are provided with a plurality of threaded holes 11 and 23 threaded holes, the upper end cover 5 Corresponding through holes 51 and 61 are provided on the lower end cover 6, the upper end cover 5 and the lower end cover 6 are fixed on the surface of the inner star wheel 1 and the outer star wheel 2 by means of bolts, and the fixed upper end cover 5 is on the surface.
  • the limiting slot 51 of the 1 is coupled with the pin 41 of the adjusting mechanism 4 .
  • the limiting groove 51 can also be provided on the lower end cover, and the reverse assembly of the adjusting mechanism 4 can also achieve the technical effect of the present invention.
  • the upper end cover 5 and the lower end cover 6 can be fixed by means of bolts, and other fixing methods such as snap-fit can also be used, which can also achieve the technical effect of the present invention.
  • the concave curved groove 22 includes a logarithmic helix 221 and a logarithmic helix 223, and the logarithmic helix 221 intersects with the logarithmic helix 223 At point 222, and symmetrically about point 222, the function of the concave curved groove 22 according to the clutch assembly of the present invention is divided into a forward self-locking area, an idling area and a reverse self-locking area.
  • the forward self-locking area corresponds to the area of the logarithmic spiral 221
  • the reverse self-locking area corresponds to the area of the logarithmic spiral 223
  • the idling area is the intersection of the forward self-locking area and the reverse self-locking area. , the intersection 222 area.
  • FIG. 5 to 7 are schematic diagrams of the three states of forward self-locking, idling, and reverse self-locking of the clutch assembly of the present invention.
  • the adjusting mechanism 4 is moved to the left side of the groove 21 by the toggle pin 41 , causing the adjacent rolling elements 3 to move toward the logarithmic spiral 221 side in the concave curved groove 22, the adjacent rolling elements 3 realize synchronous linkage, and all the rolling elements 3 are in the corresponding concave curved grooves.
  • the locking area is the area where the logarithmic helix 221 is located.
  • the adjusting mechanism 4 is in the middle position of the groove 21, and the rolling elements 3 are in the idling area of the corresponding concave curved groove 22, that is, the area of the intersection 222 of the logarithmic spiral 221 and the logarithmic spiral 223.
  • the inner star wheel 1 rotates counterclockwise or clockwise relative to the outer star wheel 2, the rolling elements 3 are not wedged tightly with the inner star wheel 1 and the outer star wheel 2, and the rotation of the input shaft and the inner star wheel will not drive the outer star wheel.
  • the clutch assembly When it rotates with the output shaft, the clutch assembly has no power output and is in a state of idling.
  • the adjusting mechanism 4 is moved to the right side of the groove 21 by turning the pin 41, so that the adjacent rolling elements 3 move toward the logarithmic spiral 223 side in the concave curved groove 22, and the adjacent rolling elements 3
  • all rolling elements 3 are in the reverse self-locking area in the corresponding concave curved groove, that is, the area where the logarithmic spiral 223 is located.
  • the concave curved groove 22 is provided in the inner ring of the outer star wheel 2 , but it should be appreciated that the concave curved groove 22 of the clutch assembly can also be provided on the outer surface of the inner star wheel 1 .
  • the inner ring of the corresponding outer star wheel 2 is set as a cylindrical surface, and the rolling body 3 is tangent to the cylindrical surface.
  • the groove 21 can also be set on the outer star wheel 2 or the inner and outer star
  • the grooves are also provided on the wheel, as long as the adjustment mechanism 4 can be displaced in the grooves 21, the technical effect of the present invention can be achieved.
  • the outer ring of the inner star wheel 1 and the inner ring of the outer star wheel 2 can also be configured to have a plurality of concave curved grooves 22 at the same time, which can also achieve the technical effect of the present invention.
  • the concave curved groove 22 in the above embodiment adopts three regions formed by two logarithmic spirals to realize the switching function of different modes, it should be recognized that other contours such as straight lines and curves can also be used. Combining to form different functional areas can also achieve the technical effect of the present invention.
  • the working principle of the above-mentioned functional area is: when the rolling element 3 is in the forward self-locking area and the reverse self-locking area of the concave curved groove 22, the self-locking angle ⁇ of the rolling element 3 satisfies the following conditions: when the rolling element 3 When it is between the positive self-locking area (or reverse self-locking area) of one star wheel and the contact surface of the other star wheel, no matter how much positive force (or reverse force) the rolling element 3 is subjected to , its self-locking angle ⁇ is always kept in the range of 2.5° ⁇ 7°, that is, the self-locking state (or reverse self-locking state) in the forward direction is always maintained.
  • the design of the self-locking angle of the concave curved groove with a straight line or a curved profile is relatively difficult, it can also achieve the above-mentioned self-locking function.
  • a logarithmic spiral profile is used.
  • the concave curved groove is easier to control the self-locking angle and can obtain greater load capacity.
  • the clutch assembly of the present invention adopts the outer star wheel, the inner star wheel and a plurality of rolling bodies arranged between the outer star wheel and the inner star wheel.
  • the plurality of rolling bodies are close to each other to realize linkage load, and each rolling body corresponds to a concave Curved groove, concave curved groove consists of two logarithmic spirals connected, so that the clutch assembly can realize the switching of multiple functions such as two-way overrun and backstop, and use the adjustment mechanism to adjust the corresponding position of the concave curved groove on the rolling element. changes to achieve the various functions of the clutch assembly.
  • the structure of the clutch assembly is simpler. It relies on the linkage of multiple rolling elements to bear the load, and realizes functions such as bidirectional overrunning of the clutch assembly.
  • the structure is simple, and has the advantages of light weight, convenient assembly and good stability.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

L'invention concerne un ensemble embrayage, qui comprend une roue en étoile extérieure, une roue en étoile intérieure et une pluralité d'éléments de roulement disposés entre la roue en étoile extérieure et la roue en étoile intérieure ; une bague intérieure de la roue en étoile extérieure ou une bague extérieure de la roue en étoile intérieure est pourvue d'une pluralité de rainures à surface incurvée concave, chaque rainure à surface incurvée concave correspondant respectivement à un élément de roulement, et chaque rainure à surface incurvée concave étant formée en reliant deux surfaces incurvées respectivement. Au moyen de la roue en étoile extérieure, de la roue en étoile intérieure et de la pluralité d'éléments de roulement disposés entre la roue en étoile extérieure et la roue en étoile intérieure, les éléments de la pluralité d'éléments de roulement sont très proches les uns des autres pour obtenir un support de charge de liaison, de sorte que l'ensemble embrayage puisse commuter entre de multiples fonctions telles qu'une roue libre bidirectionnelle et un non-retour, et diverses fonctions de l'ensemble embrayage sont obtenues en utilisant le mécanisme de réglage pour modifier les positions correspondantes des rainures à surface incurvée concave des éléments roulants. L'ensemble embrayage est de structure simple, et présente les bonnes caractéristiques d'assemblage pratique et de bonne stabilité.
PCT/CN2020/124075 2020-10-27 2020-10-27 Ensemble embrayage WO2022087838A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2020/124075 WO2022087838A1 (fr) 2020-10-27 2020-10-27 Ensemble embrayage
CN202080003410.5A CN112469914B (zh) 2020-10-27 2020-10-27 一种离合器组件

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/124075 WO2022087838A1 (fr) 2020-10-27 2020-10-27 Ensemble embrayage

Publications (1)

Publication Number Publication Date
WO2022087838A1 true WO2022087838A1 (fr) 2022-05-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/124075 WO2022087838A1 (fr) 2020-10-27 2020-10-27 Ensemble embrayage

Country Status (2)

Country Link
CN (1) CN112469914B (fr)
WO (1) WO2022087838A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3249186A (en) * 1959-01-21 1966-05-03 Daimler Benz Ag One-way clutch with involute surface
US5915514A (en) * 1994-12-26 1999-06-29 Ntn Corporation Clutch unit for automatically cancelling connection between input source and output shaft
US6543592B2 (en) * 2000-02-14 2003-04-08 Ntn Corporation One-way clutch
CN101956772A (zh) * 2009-12-11 2011-01-26 陈菊花 轴承式超越离合器结构
CN102072267A (zh) * 2009-11-25 2011-05-25 Nsk沃纳株式会社 差动控制式双向离合器
CN202371055U (zh) * 2011-12-01 2012-08-08 厦门大学 外星轮轴承式超越离合器
CN109882525A (zh) * 2019-04-23 2019-06-14 吉林博承传动系统科技有限公司 一种双向可控式超越离合器及其控制方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5103690A (en) * 1990-05-30 1992-04-14 Roger Macpherson Part-time all wheel drive system
CN1198065C (zh) * 2003-02-18 2005-04-20 陈松林 磁力机构单向轴承
JP2007153003A (ja) * 2005-12-01 2007-06-21 Nissan Motor Co Ltd 車両用操舵装置
US20180056488A1 (en) * 2015-03-16 2018-03-01 Kevin Dein A Reversible Wrench
CN205618576U (zh) * 2016-04-25 2016-10-05 吴海荣 一种三位双向可控的超越离合器
CN112196968B (zh) * 2020-10-27 2022-06-10 传孚科技（厦门）有限公司 一种用于车辆的差速系统

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3249186A (en) * 1959-01-21 1966-05-03 Daimler Benz Ag One-way clutch with involute surface
US5915514A (en) * 1994-12-26 1999-06-29 Ntn Corporation Clutch unit for automatically cancelling connection between input source and output shaft
US6543592B2 (en) * 2000-02-14 2003-04-08 Ntn Corporation One-way clutch
CN102072267A (zh) * 2009-11-25 2011-05-25 Nsk沃纳株式会社 差动控制式双向离合器
CN101956772A (zh) * 2009-12-11 2011-01-26 陈菊花 轴承式超越离合器结构
CN202371055U (zh) * 2011-12-01 2012-08-08 厦门大学 外星轮轴承式超越离合器
CN109882525A (zh) * 2019-04-23 2019-06-14 吉林博承传动系统科技有限公司 一种双向可控式超越离合器及其控制方法

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Publication number Publication date
CN112469914A (zh) 2021-03-09
CN112469914B (zh) 2023-05-02

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