WO2004048795A1 - Embrayage unidirectionnel - Google Patents

Embrayage unidirectionnel Download PDF

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Publication number
WO2004048795A1
WO2004048795A1 PCT/CN2003/000899 CN0300899W WO2004048795A1 WO 2004048795 A1 WO2004048795 A1 WO 2004048795A1 CN 0300899 W CN0300899 W CN 0300899W WO 2004048795 A1 WO2004048795 A1 WO 2004048795A1
Authority
WO
WIPO (PCT)
Prior art keywords
spline
ratchet
spiral
way clutch
helical
Prior art date
Application number
PCT/CN2003/000899
Other languages
English (en)
Chinese (zh)
Inventor
Meng Chen
Li Chen
Original Assignee
Meng Chen
Li Chen
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 Meng Chen, Li Chen filed Critical Meng Chen
Priority to AU2003277466A priority Critical patent/AU2003277466A1/en
Publication of WO2004048795A1 publication Critical patent/WO2004048795A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/022—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/04—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
    • F02N15/06—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement
    • F02N15/066—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement the starter being of the coaxial type
    • 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
    • F16D41/22—Freewheels or freewheel clutches with clutching ring or disc axially shifted as a result of lost motion between actuating members

Definitions

  • the invention belongs to a one-way clutch. Specifically, it is a component device for an engine, particularly an automobile starter. Background technique
  • One-way clutch is an important part used with starter. There are two commonly used one-way clutches. One is a friction disc type one-way clutch. Because of its complicated manufacturing process, limited transmission torque, and inconvenient maintenance, it is now rarely used. The other is a roller type one-way clutch, which is widely used in existing automobile starters. China Patent
  • roller one-way clutch is such content. It relies on rollers to transmit torque and has poor reliability. Because of the linear contact between the raceways and rollers, it is not abrasion-resistant, and it is prone to slippage after wear, which will result in ineffective torque transmission. Furthermore, the structure of the roller one-way clutch is relatively large, occupying a large space, and the number of rollers that can be accommodated in a given limited space is limited, and it is difficult to withstand large or impact loads.
  • the present invention provides a technical solution for a product that can directly replace a one-way clutch of the same specification in a starter.
  • the present invention is based on the idea of providing a spiral spline directly in the drive housing on the basis of the original structure size, and creates conditions for increasing the strength of the spline and the motor shaft and increasing the size and structure of the improved design.
  • This one-way clutch includes a driving housing, a compression spring, a helical ratchet, and a driving gear.
  • the helical ratchet and the driving gear mesh with each other with ratchet teeth provided on an end surface thereof, and the motor shaft is externally connected.
  • the utility model is characterized in that an inner spiral spline is arranged on a section of an inner circular surface of a driving casing; the inner spiral spline is engaged with a correspondingly arranged outer spiral spline on an outer circular surface of a spiral ratchet wheel; There is a built-in spline that meshes with the spline used to connect the motor shaft.
  • FIG. 1 is a schematic diagram of the structure principle of the present invention.
  • Fig. 2 is a structural diagram of a drive housing.
  • FIG. 3 is an arrow A view of FIG. 2.
  • Fig. 4 is a structural diagram of an end face ratchet.
  • Fig. 5 is a structural diagram of a driving gear.
  • Fig. 6 is a schematic structural diagram of a clutch with a centrifugal block.
  • FIG. 7 is a schematic structural diagram of a prior art.
  • the one-way clutch of the embodiment has been mounted on a motor shaft of a starter. It includes: a drive housing 1, a compression spring 3, a helical ratchet 4, a drive gear 8, plus an external motor shaft 13, one end of the motor shaft 13 is connected to the armature shaft, and the helical ratchet 4 and the drive gear 8 are connected by their end faces.
  • the set of ratchet teeth 5 and 6 mesh with each other, and an inner spiral spline 2 is provided on an inner circular surface of a section N of the driving housing 1.
  • the inner spiral spline 2 and an outer spiral correspondingly arranged on the outer circular surface of the spiral ratchet 4 The spline meshes; the other internal M of the drive housing 1 is provided with a built-in spline to mesh with the spline 10 on the motor shaft.
  • the built-in spline corresponds to the spline 10 on the motor shaft, and transmits power from the motor shaft to the drive housing through meshing.
  • the spline 10 can be a straight spline or a spiral spline.
  • the input power is accessed by the shaft gear 12 at its shaft end via a shaft sleeve 11.
  • the compression spring 3 is placed between the driving casing 1 and the end surface ratchet 4 at rest.
  • the spiral ratchet 4 and the ratchet teeth on the end surface of the driving gear 8 are connected to each other. Together.
  • the retaining ring 7 is embedded in the retaining ring groove, and the driving gear 8 and the driving housing 1 are connected in series on the motor shaft.
  • the retaining ring acts as a limit.
  • An oil-reducing bush 9 for reducing friction is mounted on the inner ring wall of the driving gear 8.
  • this one-way clutch The basic dynamic working process of this one-way clutch is briefly described as follows-When the starter is powered on, under the control of the starter's electromagnetic switch, a one-way clutch set by it is used to push the one-way clutch to slide along the motor shaft to drive the wheels of the gear The teeth mesh with the engine flywheel ring gear. At this time, the main circuit of the starter is turned on, and the armature shaft drives the driving housing, the ratchet wheel and the driving gear through the end face, and the flywheel ring gear rotates to start the engine.
  • the drive housing 1 shown in Figs. 2 and 3 is one of three important parts. It has a stepped cylindrical shape, 14 on the wall where the inner circular surface M is located is a built-in spline, and 15 on the wall where the inner circular surface N is located is an internal spiral spline.
  • the built-in spline 14 is meshed with the corresponding spline 10 on the motor shaft
  • the inner spiral spline 15 is meshed with the corresponding outer spiral spline on the spiral ratchet, and is used to transmit the rotating torque.
  • the other part can be cold extruded with a high tonnage press, which is particularly suitable for mass production.
  • 16 is a ring-shaped retaining ring groove for installing a retaining ring.
  • FIG. 3 is an arrow A view of FIG. 2.
  • the helical ratchet 4 shown in FIG. 4 (referred to as the helical end ratchet) is another important part, which is fitted in the drive housing.
  • the outer spiral spline 17 is engaged with the inner spiral spline 15 for transmitting from the drive housing.
  • the power is output through the ratchet teeth 5 from the end surface.
  • the pitch circle diameter of the spline increases, the key tooth strength can be improved.
  • Fig. 5 shows the structure of the third important driving gear 8 for output.
  • the ratchet teeth 6 on the end face thereof correspond to the ratchet teeth 5 on the end face ratchet.
  • the gear teeth 18 are meshed with the external flywheel.
  • the oil-containing bushing 9 is provided on the inner ring.
  • the two other parts of the spiral ratchet and the driving gear can be processed and formed by the same cold extrusion method as described above.
  • Fig. 6 shows another embodiment of the present invention.
  • the inner circular surface of the spiral ratchet wheel 4 is an oblique annular surface, and forms a ring cavity chamber with the driving gear.
  • the centrifugal blocks are arranged uniformly around the axis.
  • the centrifugal block 19 shown in the figure is in the form of a trapezoidal arc.
  • One side of the trapezoidal arc surface is against the inclined ring surface of the spiral ratchet, and the other side is in contact with the inclined ring surface of a bushing ring.
  • the centrifugal block is guided along the inclined surface to push the compression spring under the action of centrifugal force, so that the meshing surface of the spiral ratchet wheel and the driving gear is smoothly out of contact.
  • Figure 8 shows the structure of the one-way clutch of Cummins in the United States.
  • a splined bushing design is used. That is, a splined bushing 19 is provided outside the motor shaft. Through this splined bushing, the inner shaft is connected to the motor shaft and the outer side is connected to the spiral ratchet, and then transmitted to the driving gear through the ratchet teeth on the end face, and the output is started.
  • the presence of a splined bushing must not increase the size of the motor shaft, and there is no room to increase the size of the splined shaft.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

L'invention concerne un embrayage unidirectionnel amélioré lequel comprend un carter d'entraînement, un ressort de compression, un cliquet hélicoïdal et un engrenage d'entraînement. Le cliquet hélicoïdal est placé en prise avec l'engrenage d'entraînement par les dents du cliquet sur la face terminale du cliquet hélicoïdal. L'arbre d'un moteur est couplé extérieurement. L'engrenage selon l'invention est caractérisé en ce que le carter d'entraînement présente une cannelure intérieure hélicoïdale sur un segment intérieur circonférentiel, la cannelure intérieure hélicoïdale étant mise en prise avec la cannelure extérieure hélicoïdale se trouvant sur la surface extérieure circonférentielle du cliquet hélicoïdal, l'autre segment intérieur circonférentiel du carter d'entraînement présentant une cannelure intérieure en prise avec la cannelure de l'arbre du moteur. Les avantages de l'embrayage selon l'invention sont un moment d'entraînement amélioré, une durée de vie prolongée et une fiabilité augmentée tout en conservant une structure initiale compacte. L'embrayage selon l'invention peut remplacer un embrayage antérieur pour un moteur de puissance moyenne et élevée entre 5,5 KW et 15 KW, il permet notamment de remplacer directement un démarreur de moteur antérieur.
PCT/CN2003/000899 2002-11-23 2003-10-27 Embrayage unidirectionnel WO2004048795A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003277466A AU2003277466A1 (en) 2002-11-23 2003-10-27 An one-way clutch

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN02152587.0 2002-11-23
CNA021525870A CN1502829A (zh) 2002-11-23 2002-11-23 一种单向离合器及其制造工艺

Publications (1)

Publication Number Publication Date
WO2004048795A1 true WO2004048795A1 (fr) 2004-06-10

Family

ID=32331916

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2003/000899 WO2004048795A1 (fr) 2002-11-23 2003-10-27 Embrayage unidirectionnel

Country Status (3)

Country Link
CN (1) CN1502829A (fr)
AU (1) AU2003277466A1 (fr)
WO (1) WO2004048795A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110181997A (zh) * 2018-02-23 2019-08-30 德安百世实业股份有限公司 具空转时棘齿面脱开效果之花毂

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103256321A (zh) * 2012-02-15 2013-08-21 中国农业机械化科学研究院呼和浩特分院 打结器防倒转传动装置
CN102699631B (zh) * 2012-06-05 2014-12-24 厦门大学 一种楔块式超越离合器楔块的加工方法
CN104485801A (zh) * 2014-12-15 2015-04-01 陆晓岭 一种动力供给装置
CN105422683B (zh) * 2015-12-05 2017-09-15 重庆华洋单向器制造有限公司 一种螺旋啮合单向器
CN107725635A (zh) * 2017-09-04 2018-02-23 宁夏共享机床辅机有限公司 一种机械式过载保护装置及单向传递扭矩保护装置
CN108817866B (zh) * 2018-08-01 2021-04-02 宁波普泽机电有限公司 一种单向套的加工工艺
CN109185003A (zh) * 2018-09-29 2019-01-11 力帆实业(集团)股份有限公司 摩托车发动机螺旋式大双联齿轮结构
CN113187830A (zh) * 2021-05-24 2021-07-30 索特传动设备有限公司 超越离合器及具有其的工程机械

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH204597A (de) * 1937-06-11 1939-05-15 Bosch Gmbh Robert Anlassvorrichtung an Brennkraftmaschinen.
US2343966A (en) * 1942-04-10 1944-03-14 Briggs & Stratton Corp Engine starter
US2546954A (en) * 1949-10-03 1951-03-27 Bendix Aviat Corp Engine starter gearing
US3319755A (en) * 1965-02-08 1967-05-16 Bendix Corp Starter clutch device with centrifugal clutch separating means
US4019393A (en) * 1976-01-12 1977-04-26 Facet Enterprises, Inc. Engine starter gearing
US4261452A (en) * 1979-09-24 1981-04-14 Ingersoll-Rand Company Overrunning clutch

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH204597A (de) * 1937-06-11 1939-05-15 Bosch Gmbh Robert Anlassvorrichtung an Brennkraftmaschinen.
US2343966A (en) * 1942-04-10 1944-03-14 Briggs & Stratton Corp Engine starter
US2546954A (en) * 1949-10-03 1951-03-27 Bendix Aviat Corp Engine starter gearing
US3319755A (en) * 1965-02-08 1967-05-16 Bendix Corp Starter clutch device with centrifugal clutch separating means
US4019393A (en) * 1976-01-12 1977-04-26 Facet Enterprises, Inc. Engine starter gearing
US4261452A (en) * 1979-09-24 1981-04-14 Ingersoll-Rand Company Overrunning clutch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110181997A (zh) * 2018-02-23 2019-08-30 德安百世实业股份有限公司 具空转时棘齿面脱开效果之花毂

Also Published As

Publication number Publication date
CN1502829A (zh) 2004-06-09
AU2003277466A1 (en) 2004-06-18

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