WO2023116061A1 - 一种加压离心式离合器 - Google Patents

一种加压离心式离合器 Download PDF

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Publication number
WO2023116061A1
WO2023116061A1 PCT/CN2022/117712 CN2022117712W WO2023116061A1 WO 2023116061 A1 WO2023116061 A1 WO 2023116061A1 CN 2022117712 W CN2022117712 W CN 2022117712W WO 2023116061 A1 WO2023116061 A1 WO 2023116061A1
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WO
WIPO (PCT)
Prior art keywords
driven wheel
wheel
pulley
clutch according
centrifugal clutch
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PCT/CN2022/117712
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English (en)
French (fr)
Inventor
潘致利
潘薪全
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湖南金蚂蚁智能装备股份有限公司
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Publication of WO2023116061A1 publication Critical patent/WO2023116061A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D43/00—Automatic clutches
    • F16D43/02—Automatic clutches actuated entirely mechanically
    • F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
    • F16D43/14—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
    • F16D43/18—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members with friction clutching members
    • 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
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/36—Pulleys

Definitions

  • the invention relates to the technical field of mechanical transmission, in particular to a pressurized centrifugal clutch.
  • the centrifugal clutch is installed on the output shaft of the engine, and is a clutch that achieves automatic separation or engagement by relying on the centrifugal force generated by the centrifugal body. Its working principle is: the driving wheel drives the centrifuge (with friction material on the end surface of the centrifuge), and the centrifuge is designed with a matching tightening spring. When the engine is idling, the centrifuge does not move, and the centrifugal force is generated by the centrifuge when the engine exceeds the idle speed. Under the action of centrifugal force, the inner ring of the hub wheel with the pulley (driven wheel) is pressed, and the torque is transmitted under the action of friction. The faster the engine speed, the tighter the combination of the hub and the centrifugal body, the greater the output torque, and the less likely it is to slip .
  • the centrifuge body and the inner chamber of the driven wheel of the driven wheel are in the low-speed step state of the engine, the rotating speed of the centrifugal body is low, and the combined pressure with the inner chamber of the driven wheel is insufficient, which is very easy Slipping, high temperature caused by slipping is very easy to burn out the clutch, and at the same time, due to insufficient torque, the load cannot be used at low speed and heavy torque, which seriously affects the use effect, the service life is not long, and the failure rate is high.
  • the object of the present invention is to provide a pressurized centrifugal clutch which solves the above-mentioned problems.
  • the present invention discloses a pressurized centrifugal clutch, which includes a centrifugal body, a driving wheel, a driven wheel for transmission connection with a load, and a rotating shaft for driving the driving wheel to rotate.
  • the centrifugal body slides Installed on the driving wheel, the centrifugal body and the driving wheel are installed in the inner cavity of the driven wheel of the driven wheel, and a pressurizing device for increasing the pressure of the centrifugal body on the driven wheel is also installed on the clutch .
  • the pressurizing device includes a booster throwing iron and a tightening elastic member for driving the force end of the boosting throwing iron to move closer to the rotating shaft, one end of the boosting throwing iron is connected to the active The wheel is hinged, and the other end is a force end that can lean against the inner wall of the centrifugal body under the action of centrifugal force.
  • the tightening elastic member is a swinging iron tightening spring, and the two ends of the swinging iron tightening spring are connected to adjacent force-strengthened swinging irons.
  • the tightening elastic member and the force throwing iron are set in one-to-one correspondence with the centrifugal body.
  • the rotating shaft also includes a booster throwing iron shaft, one end of the rotating shaft is integrally fixed with a fixed plate for connecting the power input shaft, the fixed plate is provided with a fixing plate connection hole, and the boosted iron swinging shaft Hinged with the fixed plate and/or driving wheel.
  • shaft clamps are installed on both ends of the fixed disk for the booster throwing iron shaft, and gaskets are installed between the shaft clamp and the fixed disk.
  • centrifuges are provided with a centrifuge groove, and all the centrifuges are connected together through a centrifuge tightening spring that is circumferentially sleeved in the centrifuge groove.
  • the inner cavity of the driven wheel is a counterbore provided on one side of the driven wheel, and a pulley is installed on the other side of the driven wheel.
  • a pulley hole penetrating to the counterbore is provided in the pulley, a rolling bearing is installed in the pulley hole, the other end of the rotating shaft is matched with the bearing hole of the rolling bearing, and the rolling bearing is arranged on the At both ends of the pulley hole, one end of the driving pulley abuts against the inner ring of the rolling bearing, and the other end abuts against the fixed disk.
  • the rotating shaft is detachably mounted with a fixed transmission wheel on one side of the driven wheel.
  • the fixed transmission wheel is a pulley.
  • the limit end cap abuts on one side of the fixed transmission wheel and the rotating shaft at the same time, and the limit end cap is connected to the on the shaft.
  • it also includes a plurality of locating pin holes uniformly distributed along the rotating shaft and locating pins matched with the locating pin holes, and the locating pin holes are provided on the fixed driving wheel hole in the fixed driving wheel.
  • the fixed drive wheel groove is spliced with the rotating shaft groove arranged on the rotating shaft.
  • a pulley is sleeved on the other side of the driven wheel on the rotating shaft, the pulley is detachably connected to the driven wheel, and a fixed transmission wheel is coaxially fixed to the rotating shaft on one side of the pulley .
  • the pulley and the driven pulley are connected by a fastener, and the fastener penetrates the pulley from one side of the inner cavity of the driven pulley.
  • the driven wheel is provided with a countersunk hole on the other side of the inner cavity of the driven wheel, and the fastener is a countersunk screw whose screw head can be embedded in the countersunk hole.
  • a fixing pin is installed between the pulley and the driven wheel.
  • the inner cavity of the driven wheel and the friction surface of the centrifuge are respectively provided with annular grooves and annular protrusions that can engage with each other.
  • annular protrusion is arranged on the outer wall of the centrifugal body
  • the annular groove is arranged on the inner wall of the driven wheel inner cavity
  • the surface of the annular protrusion or the annular groove is fixed with a resistant layer of grinding material.
  • the cross-sectional shape of the annular groove passing through the axis of the driven wheel is trapezoidal
  • the cross-sectional shape of the annular protrusion passing through the axis of the driving wheel is trapezoidal
  • the annular groove and the annular protrusion are at least two mutually matched Group.
  • the present invention has the advantages of:
  • the present invention uses a pressurizing device.
  • the pressurizing device does not work.
  • the pressurizing device pries the centrifuge to squeeze the driven wheel to achieve an additional lever pressure, so that the centrifuge and the driven wheel
  • the friction force can also be doubled at the low engine speed stage, which solves the problem of the centrifugal clutch slipping at the low speed stage.
  • the clutch of the present invention is not easy to slip, prolongs the service life, reduces the use of mechanical clutches in the fields of small agricultural machinery, small construction machinery, small garden machinery, etc., makes the operation easier, reduces maintenance costs, and reduces physical exertion caused by operation , Improve the effect of mechanical operation experience.
  • Fig. 1 is a schematic front view of a pressurized centrifugal clutch disclosed in Embodiment 1 of the present invention
  • Fig. 2 is a schematic sectional view of A-A of Fig. 1;
  • Fig. 3 is a B-B sectional schematic diagram of Fig. 2;
  • Fig. 4 is the schematic diagram of the front view of the booster slinger disclosed by the preferred embodiment of the present invention.
  • Fig. 5 is a schematic side view of the booster slinger disclosed in the preferred embodiment of the present invention.
  • Fig. 6 is a schematic front view of a pressurized centrifugal clutch disclosed in Embodiment 2 of the present invention.
  • Fig. 7 is a schematic front view of the pressurized centrifugal clutch disclosed in Embodiment 3 of the present invention.
  • Fig. 8 is a schematic front view of a pressurized centrifugal clutch disclosed in Embodiment 4 of the present invention.
  • Fig. 9 is a schematic front view of the pressurized centrifugal clutch disclosed in Embodiment 5 of the present invention.
  • Fig. 10 is a schematic front view of the pressurized centrifugal clutch disclosed in Embodiment 6 of the present invention.
  • Fig. 11 is a schematic front view of a pressurized centrifugal clutch disclosed in Embodiment 7 of the present invention.
  • the present invention discloses a pressurized centrifugal clutch, including a centrifugal body 1, a driving wheel 2, a driven wheel 3 for transmission connection with a load, and a rotating shaft for driving the driving wheel 2 to rotate 7.
  • the driving wheel 2 rotates coaxially with the rotating shaft 7 through the key 21.
  • the centrifuge 1 is slipperily mounted on the driving wheel 2, and one side of the driven wheel 3 is provided with a driven wheel inner chamber 31, thereby forming a hub-like structure with one side open, and the centrifugal body 1 and the driving wheel 2 are installed on the driven wheel of the driven wheel 3 In the inner cavity 31, and covered by the dustproof plate 23, the surface of the centrifugal body 1 is fixed with a wear-resistant material layer 4, so as to increase the friction force and wear-resistant life during mutual friction transmission, thereby increasing Friction force and wear life of large mutual friction transmission.
  • a pressurizing device for increasing the pressure of the centrifugal body 1 on the driven wheel 3 is also installed on the clutch.
  • the pressurizing device comprises a booster throwing iron 11 and a tightening elastic part for driving the force end of the boosting swinging iron 11 to move closer to the rotating shaft 7, and the tightening elastic part is a swinging iron tightening spring 12, and the boosting swinging One end of the iron 11 is hinged with the driving wheel 2, and the other end is a force end that can lean against the inner wall of the centrifugal body 1 under the action of centrifugal force.
  • the afterburner end of the afterburner iron 11 does not work.
  • the afterburner end of the afterburner iron 11 pries the centrifugal body 1 to squeeze the driven wheel 3 to achieve an additional lever pressure, so that the centrifugal body 1
  • the friction with the driven wheel 3 can also be doubled at the low engine speed stage, which solves the problem of the centrifugal clutch slipping at the low speed stage.
  • the iron tightening spring 12 and the force throwing iron 11 are all arranged in three groups corresponding to the centrifugal body 1 one by one, and the two ends of the iron tightening spring 12 are connected to the adjacent force throwing iron 11, Only when the engine speed exceeds the idle speed, the booster swing iron 11 could overcome the elastic force of the swing iron tightening spring 12 to pressurize the centrifuge body 1 .
  • the booster throwing iron 11 in order to realize the installation of the booster throwing iron 11, it also includes a booster throwing iron shaft 13, and one end of the rotating shaft 7 is integrally fixed with a fixed disc 9 for installing the power input shaft, and the fixed disc 9 is provided with Fixed disk connection hole 91 is arranged, and the two ends of force throwing iron shaft 13 are hinged with holes on fixed disk 9 and driving wheel 2 respectively.
  • the two ends of the added force throwing iron shaft 13 located at the fixed plate 9 are equipped with shaft clamps 14, and between the shaft clamps 14 and the fixed plate 9 are installed Gasket 15.
  • any centrifuge body 1 is provided with a centrifuge body groove 101, and all centrifuge bodies 1 are connected as a whole by a ring-shaped centrifuge body tightening spring 5 that is sleeved in the centrifuge body groove 101, Therefore, when the engine is idling, under the tightening force of the centrifugal body tightening spring 5, the centrifugal body 1 slides toward the center of the driving wheel 2, so that the annular groove 32 and the annular protrusion 102 are out of transmission with each other.
  • the inner cavity 31 of the driven wheel is a counterbore arranged on one side of the driven wheel 3, and the other side of the driven wheel 3 is integrally cast and fixed with a pulley 6, so that the clutch has two types of clutch and pulley transmission. Function.
  • the pulley 6 is provided with a pulley hole 61 that penetrates into the counterbore, and a rolling bearing 8 is installed in the pulley hole 61.
  • the other end of the rotating shaft 7 is matched with the bearing hole of the rolling bearing 8, and one end of the rotating shaft 7 is integrally fixed.
  • There is a fixed disk 9 for installing the power input shaft and the fixed disk 9 is provided with a fixed disk connection hole 91, so that it can be connected to the flywheel of the engine by screws.
  • the rolling bearing 8 is arranged at both ends of the pulley hole 61, and the rolling bearing 8 at the outer end is limited by the locking screw 16 and the limit end cover 10, wherein the inner ring of the rolling bearing 8 is limited by the limit end cover 10, and the limit end cover 10
  • One end of the driving wheel 2 fixed on the rotating shaft 7 by the locking screw 16 abuts against the inner ring of the rolling bearing 8 , and the other end abuts against the fixed disk 9 , thereby realizing the axial limit of the driving wheel 2 .
  • the friction surfaces of the inner cavity 31 of the driven wheel and the centrifugal body 1 are respectively provided with an annular groove 32 and an annular protrusion 102 that can fit each other, and the annular The groove 32 can be set in the inner cavity 31 of the driven wheel, or can be set on the outer surface of the centrifugal body 1 .
  • the annular protrusion 102 is arranged on the outer sidewall of the centrifuge body 1
  • the annular groove 32 is arranged on the inner sidewall of the inner cavity 31 of the driven wheel.
  • the cross-sectional shape of the annular groove 32 passing through the axis of the driven wheel 3 is trapezoidal
  • the cross-sectional shape of the annular protrusion 102 passing through the axis of the driving wheel 2 is trapezoidal.
  • the annular groove 32 and the annular protrusion 102 are three groups matched with each other. Therefore, by increasing the friction between the centrifugal body 1 and the hub to make up for the lack of bonding pressure, the centrifugal body 1 and the hub are tightly combined without slipping, achieving the same use effect as the engine at high speed, and meeting the use requirements of low-speed and heavy-torque loads.
  • the surface of the annular protrusion 102 or the annular groove 32 is affixed with a wear-resistant material layer 4, so as to increase the frictional force and wear-resistant life during mutual frictional transmission.
  • a pulley 6 is sleeved on the rotating shaft 7 on the other side of the driven pulley 3 , and the pulley 6 is detachably connected to the driven pulley 3 .
  • the pulley 6 and the driven pulley 3 are connected by fasteners, and the fasteners pass through and connect the pulley 6 from one side of the inner cavity 31 of the driven pulley.
  • the driven wheel 3 is provided with a countersunk hole on the other side of the inner cavity 31 of the driven wheel, and the fastener is a countersunk screw 17 whose screw head can be embedded in the countersunk hole.
  • a fixing pin 18 is installed between the pulley 6 and the driven pulley 3, so as to improve the fixing strength of the positioning accuracy of the two.
  • a fixed transmission pulley 20 is coaxially fixed to one side of the rotating shaft 7 located at the pulley 6 , and the fixed transmission pulley 20 is a fixed pulley.
  • the two transmission modes of synchronous transmission with the engine and intermittent transmission through the clutch can be realized, and the machine can drive more loads to achieve the effect of one machine with multiple functions, energy saving and consumption reduction.
  • a limit end cover 10 and a locking screw 16 are also included, and the limit end cover 10 abuts against one side of the fixed transmission wheel 20 and the rotating shaft 7 at the same time.
  • the limiting end cap 10 is connected to the rotating shaft 7 through a locking screw 16 , specifically the locking screw 16 is threaded through the limiting end cap 10 and the rotating shaft hole 71 at one end of the rotating shaft 7 .
  • the fixed transmission wheel 20 in order to realize the circumferential positioning of the fixed transmission wheel 20, it also includes a plurality of positioning pin holes 24 uniformly distributed along the rotating shaft 7 and positioning pins 22 matched with the positioning pin holes 24.
  • the positioning pin holes 24 are provided by
  • the fixed transmission wheel groove 202 on the fixed transmission wheel hole 201 in the fixed transmission wheel 20 is formed by splicing with the rotating shaft groove 72 arranged on the rotating shaft 7.
  • the fixed transmission wheel 20 can also be driven by a key with the rotating shaft 7.
  • a pulley 6 is sleeved on the rotating shaft 7 on the other side of the driven wheel 3 , and the pulley 6 is detachably connected to the driven wheel 3 .
  • the pulley 6 and the driven pulley 3 are connected by fasteners, and one side of the cavity 31 of the driven pulley of the fasteners passes through the connection pulley 6 .
  • the driven wheel 3 is provided with a countersunk hole on the other side of the inner cavity 31 of the driven wheel, and the fastener is a countersunk screw 17 whose screw head can be embedded in the countersunk hole.
  • a fixing pin 18 is installed between the pulley 6 and the driven pulley 3, so as to improve the fixing strength of the positioning accuracy of the two.
  • the rotating shaft 7 is coaxially fixed on one side of the pulley 6 with a fixed transmission wheel 20
  • the fixed transmission wheel 20 is a fixed pulley
  • the fixed transmission wheel 20 The structure and installation method are the same as those in Embodiment 4. In this way, the two transmission modes of synchronous transmission with the engine and intermittent transmission through the clutch can be realized, and the machine can drive more loads to achieve the effect of one machine with multiple functions, energy saving and consumption reduction.
  • a pulley 6 is sleeved on the other side of the driven wheel 3 on the rotating shaft 7, that is, the pulley 6 of the transmission part of the driven wheel 3 is detachable connect.
  • the belt pulley 6 needs to be replaced, thereby expanding the general performance of the clutch.

Abstract

一种加压离心式离合器，包括离心体(1)、主动轮(2)、用于与负载传动连接的从动轮(3)和用于驱动主动轮旋转的转轴(7)，离心体滑装于主动轮上，离心体和主动轮安装于从动轮的从动轮内腔(31)中，离合器上还安装有用于增加离心体对从动轮的压力的加压装置。该离合器由于安装有加压装置，当发动机怠速时，加压装置不工作，当发动机转速超过怠速，加压装置撬动离心体向从动轮挤压，实现一个额外的杠杆压力，使离心体与从动轮在发动机低转速阶段也能得到加倍的摩擦力，解决了离心式离合器在低转速阶段打滑的问题。

Description

一种加压离心式离合器 技术领域
本发明涉及机械传动技术领域，尤其涉及一种加压离心式离合器。
背景技术
离心式离合器安装在发动机输出轴上，是通过依靠离心体产生离心力来达实现自动分离或接合的离合器。其工作原理为：主动轮带动离心体(离心体外端面有摩擦材料)，离心体上设计有匹配的收紧弹簧，在发动机怠速下，离心体不动作，发动机超过怠速转速离心体产生离心力，在离心力作用下压紧带有皮带轮的毂轮内圈(从动轮)，在摩擦力的作用下传递扭矩，发动机转速越快，轮毂与离心体结合越紧，输出扭矩越大，也越不容易打滑。
目前，现有的离心式离合器，在使用过程中，离心体和从动轮的从动轮内腔在发动机的低转速阶梯状态下，离心体转速较低，和从动轮内腔结合压力不足，非常容易打滑，打滑导致高温非常容易烧坏离合器，同时由于扭矩不足，导致负载低速重扭无法使用，严重影响使用效果，使用寿命不长，故障率高。
发明内容
本发明目的在于提供一种加压离心式离合器，从而解决上述问题。
为实现上述目的，本发明公开了一种加压离心式离合器，包括离心体、主动轮、用于与负载传动连接的从动轮和用于驱动所述主动轮旋转的转轴，所述离心体滑装于所述主动轮上，所述离心体和主动轮安装于所述从动轮的从动轮内腔中，所述离合器上还安装有用于增加所述离心体对从动轮的压力的加压装置。
进一步的，所述加压装置包括加力甩铁和用于驱动所述加力甩铁的加力端向所述转轴靠拢的收紧弹性件，所述加力甩铁的一端与所述主动轮铰接，另一端为可在离心力作用下抵靠到离心体的内壁上的加力端。
进一步的，所述收紧弹性件为甩铁收紧弹簧，所述甩铁收紧弹簧的两端连接相邻的加力甩铁。
进一步的，所述收紧弹性件和加力甩铁均与所述离心体一一对应设置。
进一步的，还包括加力甩铁轴，所述转轴的一端一体式固接有一用于连接动力输入轴的固定盘，所述固定盘上设置有固定盘连接孔，所述加力甩铁轴与所述固定盘和/或主动轮铰接。
进一步的，所述加力甩铁轴位于所述固定盘的两端安装有轴卡，且所述轴卡和固定盘之间安装有垫片。
进一步的，任一所述离心体的至少一侧设置有离心体槽，所有所述离心体通过一环向套 设在所述离心体槽内的离心体收紧弹簧连接一体。
进一步的，所述从动轮内腔为设置在所述从动轮一侧的沉孔，所述从动轮另一侧安装有皮带轮。
进一步的，所述皮带轮内设置有贯通到所述沉孔的皮带轮孔，所述皮带轮孔内安装有滚动轴承，所述转轴的另一端与所述滚动轴承的轴承孔配合，所述滚动轴承设置在所述皮带轮孔的两端，所述主动轮的一端抵靠到所述滚动轴承的内圈上，另一端抵靠到所述固定盘上。
进一步的，所述转轴位于所述从动轮一侧可拆式安装有一固定传动轮。
进一步的，所述固定传动轮为皮带轮。
进一步的，还包括限位端盖和锁紧螺钉，所述限位端盖同时靠接在所述固定传动轮和转轴的一侧，且所述限位端盖通过所述锁紧螺钉连接到所述转轴上。
进一步的，还包括沿着所述转轴均布的多个定位销孔和与所述定位销孔配合的定位销，所述定位销孔由设置在所述固定传动轮内固定传动轮孔上的固定传动轮槽和设置在所述转轴上的转轴槽拼接组成。
进一步的，所述转轴上位于所述从动轮另一侧套接有一皮带轮，所述皮带轮与所述从动轮可拆式连接，所述转轴位于所述皮带轮一侧同轴固接有一固定传动轮。
进一步的，所述皮带轮和从动轮通过紧固件连接，所述紧固件从所述从动轮内腔的一侧贯穿连接所述皮带轮。
进一步的，所述从动轮位于所述从动轮内腔的另一侧设置有沉头孔，所述紧固件为螺钉头可埋设在所述沉头孔内的沉头螺钉。
进一步的，所述皮带轮和从动轮之间还安装有固定销钉。
进一步的，所述从动轮内腔和离心体的摩擦表面分别设置有可相互契合的环形凹槽和环形凸起。
进一步的，所述环形凸起设置在离心体的外侧壁上，所述环形凹槽设置在所述从动轮内腔的内侧壁上，所述环形凸起或环形凹槽的表面固接有耐磨材料层。
进一步的，所述环形凹槽过所述从动轮轴线的截面形状为梯形，所述环形凸起过主动轮轴线的截面形状为梯形，所述环形凹槽和环形凸起为相互匹配的至少两组。
与现有技术相比，本发明的优点在于：
本发明通过加压装置，当发动机怠速时，加压装置不工作，当发动机转速超过怠速，加压装置撬动离心体向从动轮挤压，实现一个额外的杠杆压力，使离心体与从动轮在发动机低转速阶段也能得到加倍的摩擦力，解决了离心式离合器在低转速阶段打滑的问题。本发明的离合器不容易打滑，延长使用寿命，在小型农业机械、小型工程机械、小型园林机械等等领 域，减少使用机械离合器，让操作变得更加简单，减少维护成本，降低操作导致的体力消耗、提高机械操作体验效果。
下面将参照附图，对本发明作进一步详细的说明。
附图说明
构成本申请的一部分的附图用来提供对本发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是本发明实施例一公开的加压离心式离合器的主视示意图；
图2是图1的A-A剖视示意图；
图3是图2的B-B剖视示意图；
图4是本发明优选实施例公开的加力甩铁的主视示意图；
图5是本发明优选实施例公开的加力甩铁的侧视示意图；
图6是本发明实施例二公开的加压离心式离合器的主视示意图；
图7是本发明实施例三公开的加压离心式离合器的主视示意图；
图8是本发明实施例四公开的加压离心式离合器的主视示意图；
图9是本发明实施例五公开的加压离心式离合器的主视示意图；
图10是本发明实施例六公开的加压离心式离合器的主视示意图；
图11是本发明实施例七公开的加压离心式离合器的主视示意图。
图例说明：
1、离心体；101、离心体槽；102、环形凸起；2、主动轮；21、键；3、从动轮；31、从动轮内腔；32、环形凹槽；4、耐磨材料层；5、离心体收紧弹簧；6、皮带轮；61、皮带轮孔；7、转轴；71、转轴孔；72、转轴槽；8、滚动轴承；9、固定盘；91、固定盘连接孔；10、限位端盖；11、加力甩铁；12、甩铁收紧弹簧；13、加力甩铁轴；14、轴卡；15、垫片；16、锁紧螺钉；17、沉头螺钉；18、固定销钉；20、固定传动轮；201、固定传动轮孔；202、固定传动轮槽；22、定位销；23、防尘板；24、定位销孔。
具体实施方式
以下结合附图对本发明的实施例进行详细说明，但是本发明可以由权利要求限定和覆盖的多种不同方式实施。
实施例一：
如图1-图5所示，本发明公开了一种加压离心式离合器，包括离心体1、主动轮2、用于与负载传动连接的从动轮3和用于驱动主动轮2旋转的转轴7，主动轮2通过键21与转轴7同轴转动。离心体1滑装于主动轮2上，从动轮3的一侧设置有从动轮内腔31，从而形成 一侧开口的类轮毂结构，离心体1和主动轮2安装于从动轮3的从动轮内腔31中，且通过防尘板23覆盖防尘，离心体1的表面固接有耐磨材料层4，从而用于增大相互摩擦传动时的摩擦力和耐磨寿命，从而用于增大相互摩擦传动时的摩擦力和耐磨寿命。
在本实施例中，离合器上还安装有用于增加离心体1对从动轮3的压力的加压装置。具体的，加压装置包括加力甩铁11和用于驱动加力甩铁11的加力端向转轴7靠拢的收紧弹性件，收紧弹性件为甩铁收紧弹簧12，加力甩铁11的一端与主动轮2铰接，另一端为可在离心力作用下抵靠到离心体1的内壁上的加力端，从而，当发动机怠速时，在甩铁收紧弹簧12的作用下，加力甩铁11的加力端不工作，当发动机转速超过怠速，加力甩铁11的加力端撬动离心体1向从动轮3挤压，实现一个额外的杠杆压力，使离心体1与从动轮3在发动机低转速阶段也能得到加倍的摩擦力，解决了离心式离合器在低转速阶段打滑的问题。
在本实施例中，甩铁收紧弹簧12和加力甩铁11均与离心体1一一对应设置的三组，甩铁收紧弹簧12的两端连接相邻的加力甩铁11，只有当发动机转速超过怠速时，加力甩铁11才能克服甩铁收紧弹簧12的弹力从而在离心体1上加压。
在本实施例中，为了实现加力甩铁11的安装，还包括加力甩铁轴13，转轴7的一端一体式固接有一用于安装动力输入轴的固定盘9，固定盘9上设置有固定盘连接孔91，加力甩铁轴13的两端分别与固定盘9和主动轮2上的孔铰接。
在本实施例中，为了实现加力甩铁轴13的轴向定位，加力甩铁轴13位于固定盘9的两端安装有轴卡14，且轴卡14和固定盘9之间安装有垫片15。
在本实施例中，任一离心体1的至少一侧设置有离心体槽101，所有离心体1通过一环向套设在离心体槽101内环状的离心体收紧弹簧5连接一体，从而，当发动机怠速时，在离心体收紧弹簧5的收紧力作用下，离心体1向主动轮2的中心滑动，从而环形凹槽32和环形凸起102相互脱离传动。
在本实施例中，从动轮内腔31为设置在从动轮3一侧的沉孔，从动轮3另一侧一体式铸造固接有皮带轮6，从而使该离合器具有离合和皮带轮传动的两种功能。
在本实施例中，皮带轮6内设置有贯通到沉孔的皮带轮孔61，皮带轮孔61内安装有滚动轴承8，转轴7的另一端与滚动轴承8的轴承孔配合，转轴7的一端一体式固接有一用于安装动力输入轴的固定盘9，固定盘9上设置有固定盘连接孔91，从而可以可通过螺钉连接到发动机的飞轮上。滚动轴承8设置在皮带轮孔61的两端，外端的滚动轴承8通过锁紧螺钉16和限位端盖10限位，其中，滚动轴承8的内圈通过限位端盖10限位，限位端盖10通过锁紧螺钉16固定在转轴7上主动轮2的一端抵靠到滚动轴承8的内圈上，另一端抵靠到固定盘9上，从而实现主动轮2的轴向限位。
实施例二：
如图6所示，在本实施例中，在实施例一的基础上，从动轮内腔31和离心体1的摩擦表面分别设置有可相互契合的环形凹槽32和环形凸起102，环形凹槽32即可设置在从动轮内腔31内，也可设置在离心体1的外表面。在本实施例中，环形凸起102设置在离心体1的外侧壁上，环形凹槽32设置在从动轮内腔31的内侧壁上。具体的，为了便于成形制造，环形凹槽32过从动轮3轴线的截面形状为梯形，环形凸起102过主动轮2轴线的截面形状为梯形。其中，环形凹槽32和环形凸起102为相互匹配的三两组。从而通过增加离心体1与轮毂摩擦力弥补结合压力不足，实现离心体1和轮毂紧密结合，不会产生打滑，达到与发动机高转速状态下的同样使用效果，满足负载低速重扭的使用需求，进一步，环形凸起102或环形凹槽32的表面固接有耐磨材料层4，从而用于增大相互摩擦传动时的摩擦力和耐磨寿命。
实施例三：
如图7所示，在本实施例中，在实施例二的基础上，转轴7上位于从动轮3的另一侧套接有一皮带轮6，皮带轮6与从动轮3可拆式连接。当与不同的负载传动时，只需要更换皮带轮6即可，从而拓展了离合器的通用性能。在连接方式上，皮带轮6和从动轮3通过紧固件连接，紧固件从从动轮内腔31的一侧贯穿连接皮带轮6。具体的，从动轮3位于从动轮内腔31的另一侧设置有沉头孔，紧固件为螺钉头可埋设在沉头孔内的沉头螺钉17。
在本实施例中，皮带轮6和从动轮3之间还安装有固定销钉18，从而提高二者的定位精度的固定强度。
实施例四：
如图8所示，在本实施例中，在实施例三的基础上，转轴7位于所述皮带轮6的一侧同轴固接有一固定传动轮20，固定传动轮20为固定皮带轮。从而实现与发动机同步传动和通过离合器间歇式传动的两种传动方式，实现机器带动更多负载，达到一机多用，节能降耗的效果。
在本实施例中，为了实现固定传动轮20的轴向定位，还包括限位端盖10和锁紧螺钉16，限位端盖10同时靠接在固定传动轮20和转轴7的一侧，且限位端盖10通过锁紧螺钉16连接到转轴7上，具体的锁紧螺钉16穿过限位端盖10与转轴7一端的转轴孔71螺纹连接。
在本实施例中，为了实现固定传动轮20的周向定位，还包括沿着转轴7均布的多个定位销孔24和与定位销孔24配合的定位销22，定位销孔24由设置在固定传动轮20内固定传动轮孔201上的固定传动轮槽202和设置在转轴7上的转轴槽72拼接组成，当然，固定传动轮20也可以与转轴7通过键传动。
实施例五：
如图9所示，在本实施例中，在实施例的一的基础上，转轴7上位于从动轮3的另一侧套接有一皮带轮6，皮带轮6与从动轮3可拆式连接。当与不同的负载传动时，只需要更换皮带轮6即可，从而拓展了离合器的通用性能。在连接方式上，皮带轮6和从动轮3通过紧固件连接，紧固件从动轮内腔31的一侧贯穿连接皮带轮6。具体的，从动轮3位于从动轮内腔31的另一侧设置有沉头孔，紧固件为螺钉头可埋设在沉头孔内的沉头螺钉17。
在本实施例中，皮带轮6和从动轮3之间还安装有固定销钉18，从而提高二者的定位精度的固定强度。
实施例六：
如图10所示，在本实施例中，在实施例五的基础上，转轴7位于皮带轮6的一侧同轴固接有一固定传动轮20，固定传动轮20为固定皮带轮，固定传动轮20的结构和安装方式与实施例四相同。从而实现与发动机同步传动和通过离合器间歇式传动的两种传动方式，实现机器带动更多负载，达到一机多用，节能降耗的效果。
实施例七：
如图11所示，在本实施例中，在实施例一的基础上，转轴7上位于从动轮3的另一侧套接有一皮带轮6，即从动轮3的传动部分皮带轮6为可拆式连接。当与不同的负载传动时，只需要更换皮带轮6即可，从而拓展了离合器的通用性能。
以上仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (20)

  1. 一种加压离心式离合器，包括离心体(1)、主动轮(2)、用于与负载传动连接的从动轮(3)和用于驱动所述主动轮(2)旋转的转轴(7)，所述离心体(1)滑装于所述主动轮(2)上，所述离心体(1)和主动轮(2)安装于所述从动轮(3)的从动轮内腔(31)中，其特征在于，所述离合器上还安装有用于增加所述离心体(1)对从动轮(3)的压力的加压装置。
  2. 根据权利要求1所述的加压离心式离合器，其特征在于，所述加压装置包括加力甩铁(11)和用于驱动所述加力甩铁(11)的加力端向所述转轴(7)靠拢的收紧弹性件，所述加力甩铁(11)的一端与所述主动轮(2)铰接，另一端为可在离心力作用下抵靠到离心体(1)的内壁上的加力端。
  3. 根据权利要求2所述的加压离心式离合器，其特征在于，所述收紧弹性件为甩铁收紧弹簧(12)，所述甩铁收紧弹簧(12)的两端连接相邻的加力甩铁(11)。
  4. 根据权利要求2所述的加压离心式离合器，其特征在于，所述收紧弹性件和加力甩铁(11)均与所述离心体(1)一一对应设置。
  5. 根据权利要求2所述的加压离心式离合器，其特征在于，还包括加力甩铁轴(13)，所述转轴(7)的一端一体式固接有一用于连接动力输入轴的固定盘(9)，所述固定盘(9)上设置有固定盘连接孔(91)，所述加力甩铁轴(13)与所述固定盘(9)和/或主动轮(2)铰接。
  6. 根据权利要求5所述的加压离心式离合器，其特征在于，所述加力甩铁轴(13)位于所述固定盘(9)的两端安装有轴卡(14)，且所述轴卡(14)和固定盘(9)之间安装有垫片(15)。
  7. 根据权利要求5所述的加压离心式离合器，其特征在于，任一所述离心体(1)的至少一侧设置有离心体槽(101)，所有所述离心体(1)通过一环向套设在所述离心体槽(101)内的离心体收紧弹簧(5)连接一体。
  8. 根据权利要求5所述的加压离心式离合器，其特征在于，所述从动轮内腔(31)为设置在所述从动轮一侧的沉孔，所述从动轮(3)另一侧安装有皮带轮(6)。
  9. 根据权利要求8所述的加压离心式离合器，其特征在于，所述皮带轮(6)内设置有贯通到所述沉孔的皮带轮孔(61)，所述皮带轮孔(61)内安装有滚动轴承(8)，所述转轴(7)的另一端与所述滚动轴承(8)的轴承孔配合，所述滚动轴承(8)设置在所述皮带轮孔(61)的两端，所述主动轮(2)的一端抵靠到所述滚动轴承(8)的内圈上，另一端抵靠到所述固定盘(9)上。
  10. 根据权利要求1-9任一所述的加压离心式离合器，其特征在于，所述转轴(7)位于所述从动轮(3)一侧可拆式安装有一固定传动轮(20)。
  11. 根据权利要求10所述的加压离心式离合器，其特征在于，所述固定传动轮(20)为固定皮带轮。
  12. 根据权利要求10所述的加压离心式离合器，其特征在于，还包括限位端盖(10)和锁紧螺钉(16)，所述限位端盖(10)同时靠接在所述固定传动轮(20)和转轴(7)的一侧，且所述限位端盖(10)通过所述锁紧螺钉(16)连接到所述转轴(7)上。
  13. 根据权利要求10所述的加压离心式离合器，其特征在于，还包括沿着所述转轴(7)均布的多个定位销孔(24)和与所述定位销孔(24)配合的定位销(22)，所述定位销孔(24)由设置在所述固定传动轮(20)内固定传动轮孔(201)上的固定传动轮槽(202)和设置在所述转轴(7)上的转轴槽(72)拼接组成。
  14. 根据权利要求10所述的加压离心式离合器，其特征在于，所述转轴(7)上位于所述从动轮另一侧套接有一皮带轮(6)，所述皮带轮(6)与所述从动轮(3)可拆式连接，所述转轴(7)位于所述皮带轮(6)一侧同轴固接有所述固定传动轮(20)。
  15. 根据权利要求14所述的加压离心式离合器，其特征在于，所述皮带轮(6)和从动轮(3)通过紧固件连接，所述紧固件从所述从动轮内腔(31)的一侧贯穿连接所述皮带轮(6)。
  16. 根据权利要求15所述的加压离心式离合器，其特征在于，所述从动轮(3)位于所述从动轮内腔(31)的另一侧设置有沉头孔，所述紧固件为螺钉头可埋设在所述沉头孔内的沉头螺钉(17)。
  17. 根据权利要求16所述的加压离心式离合器，其特征在于，所述皮带轮(6)和从动轮(3)之间还安装有固定销钉(18)。
  18. 根据权利要求1-9任一所述的加压离心式离合器，其特征在于，所述从动轮内腔(31)和离心体(1)的摩擦表面分别设置有可相互契合的环形凹槽(32)和环形凸起(102)。
  19. 根据权利要求18所述的加压离心式离合器，其特征在于，所述环形凸起(102)设置在离心体(1)的外侧壁上，所述环形凹槽(32)设置在所述从动轮内腔(31)的内侧壁上，所述环形凸起(102)或环形凹槽(32)的表面固接有耐磨材料层(4)。
  20. 根据权利要求18所述的加压离心式离合器，其特征在于，所述环形凹槽(32)过所述从动轮(3)轴线的截面形状为梯形，所述环形凸起(102)过主动轮(2)轴线的截面形状为梯形，所述环形凹槽(32)和环形凸起(102)为相互匹配的至少两组。
PCT/CN2022/117712 2021-12-23 2022-09-08 一种加压离心式离合器 WO2023116061A1 (zh)

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