WO2018161484A1 - 一种柔性万向传动装置 - Google Patents

一种柔性万向传动装置 Download PDF

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Publication number
WO2018161484A1
WO2018161484A1 PCT/CN2017/091924 CN2017091924W WO2018161484A1 WO 2018161484 A1 WO2018161484 A1 WO 2018161484A1 CN 2017091924 W CN2017091924 W CN 2017091924W WO 2018161484 A1 WO2018161484 A1 WO 2018161484A1
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WIPO (PCT)
Prior art keywords
universal joint
ring
shaft
pin
universal
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PCT/CN2017/091924
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English (en)
French (fr)
Inventor
郑玉祥
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扬州维邦园林机械有限公司
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Publication of WO2018161484A1 publication Critical patent/WO2018161484A1/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
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/26—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected
    • 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
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/84—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor

Definitions

  • the invention relates to a transmission device, in particular to a flexible universal transmission device, belonging to the technical field of transmission machinery.
  • the distance between the power output device of many devices and the actuator such as the reduction gear box is relatively long, and often the input shaft of the power output device and the actuator is not guaranteed to be on the same axis.
  • Some equipment, such as cars, lawn machine engines, etc. may cause slight changes in the relative position of the engine and the gearbox due to vibration during operation.
  • the universal joint shaft is usually rigidly connected between the output shaft of the engine and the input shaft of the reduction gearbox.
  • the conventional universal joint shaft has a ball-cage universal joint respectively mounted on the two shaft ends, and adopts a structure similar to the joint head and the joint socket.
  • the shaft end of one shaft is provided with a joint head, and the shaft end of the other shaft is provided.
  • the joint head is located in the cavity of the joint socket, and the spherical body of the joint head is provided with an open groove, and the open groove is followed by a cylindrical pin, and both ends of the cylindrical pin are supported in the joint socket.
  • the open groove of the joint head makes the root of the joint head very weak, the stress state is not good, and it is easy to break, the transmission power is small, the service life is short, and the damage rate is high. Even if the joint head is reinforced, in the case of frequent start/stop applications, this rigid drive will also act as a stop/stop shock on the weakest part of the drive line and cause premature failure of the relevant parts.
  • the object of the present invention is to overcome the problems in the prior art and to provide a flexible universal transmission device with high strength, and the two connecting shafts realize elastic connection transmission torque in the circumferential direction, can buffer the impact in the transmission, and have a long service life.
  • a flexible universal transmission device of the present invention includes oppositely extending a first drive shaft and a second drive shaft, the first drive shaft being coupled to the connecting sleeve by a first universal joint, the second drive shaft being coupled to the connecting shaft by a second universal joint, the connecting shaft
  • the left end is rotatably inserted into the right port of the connecting sleeve, and the outer circumference of the connecting sleeve is provided with a torsion spring, and the two ends of the torsion spring are respectively fixed on the torsion spring positioning column, wherein the torsion spring positioning column of the left end is fixed On the circumference of the connecting sleeve, a torsion spring positioning post at the right end is fixed on the circumference of the connecting shaft.
  • the present invention achieves the following beneficial effects: the first universal joint transmits torque between the first transmission shaft and the connecting sleeve and can compensate for the angle or coaxiality error between the two, the second universal direction
  • the torque is transmitted between the second transmission shaft and the connecting shaft and can compensate for the angle or concentricity error between the two, while the connecting shaft can be rotated and axially moved in the connecting sleeve and can compensate for the axial or circumferential direction.
  • the torsion spring transmits torque between the connecting shaft and the connecting sleeve.
  • the transmission device has no components with poor stress and weak structure, is not easy to be damaged, can transmit a large torque, and has a long service life; the elasticity of the torsion spring can absorb the impact force in the transmission, and realizes the first transmission Flexible transmission of torque between the shaft and the second drive shaft.
  • the first universal joint and the second universal joint respectively comprise a universal joint seat and a universal joint cross ring
  • the universal joint cross ring has an oblong cross section and is located in the corresponding universal direction.
  • the inner cavity of the inner end of the joint, the gimbal seat and the long ring body of the corresponding universal joint cross ring are respectively hinged by a cross ring half pin, and the cross ring drive pin is respectively along the universal joint cross ring a short shaft is inserted into and penetrates the universal joint cross ring;
  • a semi-pin ring groove is respectively disposed on an outer circumference of the inner end of the universal joint seat, and the half pin ring groove is located on the same cross section as the cross ring half pin a half pin retaining ring is engaged in the half pin ring groove.
  • the half pin retaining ring can be any suitable material, preferably but not limited to a steel wire.
  • oval as used in the present invention means a shape resembling a circle having a major axis and a minor axis perpendicular to each other, such as but not limited to an elliptical shape.
  • the cross ring drive pin is inserted along the short axis direction of the universal joint cross ring, and the universal joint cross ring is fixed on the outer shaft end of the connecting sleeve or the connecting shaft, and the axis of the cross ring half pin is parallel to the long axis of the universal joint cross ring
  • the universal joint cross ring can rotate in a certain range in the universal joint seat with two cross-rings and half-pins around the common axis, and the joint between the two sides of the transmission shaft is transmitted through the cooperation of the universal joint cross ring and the universal joint seat. Torque and compensate for the error in the coaxiality of the two axes.
  • the half pin retaining ring is embedded in the semi-pin ring groove to restrain the cross ring half pin in the pin hole to prevent slipping out, and to ensure that the universal joint cross ring and the universal joint are well articulated.
  • the half pin retaining ring is preferably made of steel wire, but is not limited thereto, as long as the cross ring half pin can be restrained in the pin hole to prevent it from slipping out.
  • the right end of the first transmission shaft is inserted into the left end of the universal joint of the first universal joint, and is connected to the corresponding universal joint by the universal joint drive pin; a connecting sleeve stepped shaft is disposed at a left end of the connecting sleeve, and the connecting sleeve stepped shaft is inserted into the universal joint of the first universal joint, and the cross ring driving pin vertically penetrates the connecting Set of step shafts.
  • the first transmission shaft is fixedly connected with the universal joint of the first universal joint through the universal joint drive pin, and the connecting sleeve is fixed by the connecting sleeve step shaft and the cross ring driving pin and the first universal joint universal joint cross ring
  • the connection through the cooperation between the universal joint of the first universal joint and the universal joint cross ring, transmits torque between the first transmission shaft and the connecting sleeve and can compensate for the displacement error between the two.
  • the left end of the second transmission shaft is inserted into the right end of the universal joint of the second universal joint, and is connected to the corresponding universal joint by the universal joint drive pin;
  • the right end of the connecting shaft is inserted into the universal joint cross ring inner cavity of the second universal joint, and the cross ring driving pin vertically penetrates the connecting shaft.
  • the second transmission shaft is fixedly connected with the universal joint of the second universal joint through the universal joint drive pin, and the connecting shaft passes the cross ring drive pin and the second universal joint universal joint ten
  • the word ring is fixedly connected, and the torque is transmitted between the second transmission shaft and the connecting shaft through the cooperation between the universal joint of the second universal joint and the universal joint cross ring, and the displacement error between the two can be compensated.
  • the outer circumference of the outer joint of the universal joint seat is respectively provided with a long pin ring groove, and the long pin ring groove is located on the same cross section as the corresponding universal joint drive pin.
  • a drive pin clamp is attached to the long pin ring groove. The drive pin wire clamp is blocked outside the outer end of the universal joint drive pin, and the universal joint drive pin is controlled in the pin hole.
  • the drive pin clamp can be of any suitable material such as, but not limited to, a steel wire.
  • long pin ring groove and the corresponding universal joint drive pin in the same section in the present invention means a radial section of the long pin ring groove at the intermediate position of the groove width and the corresponding universal joint drive pin The centerline is located on the same radial section of the drive shaft.
  • a nylon sleeve is disposed between the left end of the connecting shaft and the inner wall of the connecting sleeve.
  • the nylon sleeve can reduce the friction when the connecting shaft rotates or slides in the connecting sleeve.
  • the universal joint of the first universal joint is provided with a first universal joint dust jacket, and the right end of the first universal joint dust jacket is fastened to the connecting sleeve.
  • a left end of the first universal joint dust sleeve is engaged on a central circumference of the corresponding universal joint seat, and a first circumference of the left end of the first universal joint dust jacket is provided with a first
  • the universal joint dust seal ring groove is embedded with an O-ring in the first universal joint dust seal ring groove.
  • the first universal joint dust jacket can prevent dust from entering the first universal joint's universal joint cross ring and the universal joint seat, and ensure flexible rotation.
  • the second universal joint of the universal joint is provided with a second universal joint dust jacket, and the left end of the second universal joint dust sleeve is fastened to the connecting shaft.
  • the right end of the second universal joint dust jacket is snapped onto the central circumference of the corresponding universal joint seat, and the second universal joint of the second universal joint dust jacket is provided with a second universal direction
  • the dust jacket sealing ring groove is embedded with an O-ring in the second universal joint dust seal ring groove.
  • the second universal joint dust jacket can prevent dust from entering the first
  • the joint of the universal joint of the two-way joint is matched with the joint of the universal joint, and the rotation is guaranteed to be flexible.
  • the first transmission shaft is a power take-off shaft and the second transmission shaft is a transmission input shaft.
  • Figure 1 is a front elevational view of the flexible universal joint of the present invention.
  • Fig. 2 is an exploded perspective view of Fig. 1;
  • the flexible universal transmission device of the present invention includes a first transmission shaft 1 and a second transmission shaft 2 which are oppositely protruded.
  • the first transmission shaft 1 may be a power output shaft, and the second transmission shaft 2
  • the shaft can be input to the gearbox.
  • the first transmission shaft 1 is connected to the connecting sleeve 3 through the first universal joint, and the second transmission shaft 2 is connected to the connecting shaft 4 via the second universal joint.
  • the left end of the connecting shaft 4 is rotatably inserted at the right end of the connecting sleeve 3.
  • the outer sleeve of the connecting sleeve 3 is provided with a torsion spring 6, and the two ends of the torsion spring 6 are respectively fixed on the torsion spring positioning post 6a, wherein the torsion spring positioning post 6a at the left end is fixed on the circumference of the connecting sleeve 3, and the torsion spring at the right end The positioning post 6a is fixed to the circumference of the connecting shaft 4.
  • the first universal joint transmits torque between the first transmission shaft 1 and the connecting sleeve 3 and can compensate for the angle or coaxiality error between the two
  • the second universal joint is between the second transmission shaft 2 and the connecting shaft 4
  • the torque is transmitted and the angle or concentricity error between the two can be compensated for, while the connecting shaft 4 is rotatable and axially movable in the connecting sleeve 3 and can compensate for axial or circumferential displacement errors
  • the torsion spring 6 is Torque is transmitted between the connecting shaft 4 and the connecting sleeve 3.
  • the elasticity of the torsion spring 6 can absorb the impact force in the transmission, achieving a flexible transmission of torque from the first transmission shaft 1 to the second transmission shaft 2.
  • the first universal joint and the second universal joint respectively include a universal joint seat 7 and a universal joint cross ring 8, and the universal joint cross ring 8 has an oblong cross section and is located inside the end of the corresponding universal joint seat.
  • the cavity, the joint seat 7 and the long ring body of the corresponding universal joint cross ring 8 are respectively hinged by the cross ring half pin 8a, and the cross ring drive pin 8b is respectively inserted along the short axis of the universal joint cross ring 8 and Through the universal joint yoke 8;
  • the outer circumference of the inner end of the universal joint seat is respectively provided with a semi-pin ring groove 7b, and the half pin ring groove 7b is located in the same section as the cross ring half pin 8a, and the half pin ring groove 7b
  • the middle card is connected with a half pin wire retaining ring 9.
  • the cross ring drive pin 8b is inserted in the short axis direction of the universal joint yoke 8, and the universal joint yoke 8 is fixed to the outer sleeve end of the connecting sleeve 3 or the connecting shaft 4, and the axis of the cross ring half pin 8a is parallel to the universal direction.
  • the long axis of the cross ring 8, the universal joint cross ring 8 can be wound around the common axis in the universal joint 7
  • the ring half pin 8a rotates within a certain range, and the torque is transmitted between the two side transmission shafts through the cooperation of the universal joint cross ring 8 and the universal joint seat 7, and the error of the coaxiality of the two shafts is compensated.
  • the half pin wire retaining ring 9 is embedded in the half pin ring groove 7b to restrain the cross ring half pin 8a in the pin hole to prevent slipping out, and to ensure that the universal joint cross ring 8 and the universal joint seat 7 are hinged well.
  • the right end of the first transmission shaft 1 is inserted into the left end of the gimbal seat 7 of the first universal joint, and is connected to the corresponding gimbal seat 7 through the universal joint drive pin 7a; the left end of the connection sleeve 3 is provided
  • the sleeve stepped shaft 3a is connected, and the connecting sleeve stepped shaft 3a is inserted into the inner cavity of the universal joint cross ring 8 of the first universal joint, and the corresponding cross ring driving pin 8b vertically penetrates the connecting sleeve stepped shaft 3a.
  • the first transmission shaft 1 is fixedly connected to the gimbal seat 7 of the second universal joint by the universal joint drive pin 7a, and the connecting sleeve 3 passes through the sleeve sleeve shaft 3a and the cross ring drive pin 8b and the first universal joint.
  • the universal joint cross ring 8 is fixedly connected, and the torque is transmitted between the first transmission shaft 1 and the connecting sleeve 3 through the cooperation between the universal joint seat 7 of the first universal joint and the universal joint cross ring 8 and can compensate The displacement error between the two.
  • the left end of the second transmission shaft 2 is inserted into the right end of the gimbal seat 7 of the second universal joint, and is connected to the corresponding universal joint seat 7 through the universal joint drive pin 7a; the right end of the connecting shaft 4 is inserted In the inner cavity of the universal joint of the second universal joint, the corresponding cross ring drive pin 8b vertically penetrates the connecting shaft 4.
  • the second transmission shaft 2 is fixedly connected to the gimbal seat 7 of the second universal joint by the universal joint drive pin 7a, and the connecting shaft 4 passes the cross ring drive pin 8b and the second universal joint of the universal joint cross ring 8
  • the fixed connection through the cooperation between the gimbal seat 7 of the second universal joint and the universal joint cross ring 8, transmits torque between the second transmission shaft 2 and the connecting shaft 4 and can compensate the displacement between the two error.
  • the outer circumference of the outer end of the universal joint seat 7 is respectively provided with a long pin ring groove 7c.
  • the long pin ring groove 7c is located on the same cross section as the corresponding universal joint seat drive pin 7a, and the long pin ring groove 7c is engaged with Drive pin wire clamp 10.
  • the drive pin wire clamp 10 is blocked outside the outer end of the universal joint drive pin 7a, and the universal joint drive pin 7a is controlled in the pin hole.
  • a nylon sleeve 5 is provided between the left end of the connecting shaft 4 and the inner wall of the connecting sleeve 3.
  • the nylon sleeve 5 can reduce the frictional force when the connecting shaft 4 is rotated or slid in the connecting sleeve 3.
  • the first universal joint of the first universal joint is provided with a first universal joint dust jacket 11 , and the right end of the first universal joint dust jacket 11 is fastened to the journal of the sleeve shaft 3a of the connecting sleeve;
  • the left end of the universal joint dust jacket 11 is snapped onto the central circumference of the corresponding universal joint seat 7, and the first universal joint dust jacket 11 has a first universal joint dust seal ring groove on the outer circumference of the left end.
  • An O-ring 13 is embedded in the first universal joint dust seal ring groove.
  • the first universal joint dust jacket 11 can prevent dust from entering the portion of the first universal joint of the universal joint cross ring 8 and the universal joint seat 7, and ensure flexible rotation.
  • the second universal joint of the universal joint seat 7 is provided with a second universal joint dust jacket 12, and the left end of the second universal joint dust jacket 12 is fastened to the journal of the connecting shaft 4;
  • the right end of the dustproof sleeve 12 is snapped onto the central circumference of the corresponding universal joint seat 7, and the second universal joint dustproof sleeve 12 has a second universal joint dust seal ring groove on the outer circumference of the right end of the boot sleeve 12, second An O-ring 13 is embedded in the gimbal boot seal groove.
  • the second universal joint dust jacket 12 can prevent dust from entering the portion of the second universal joint of the universal joint rib 8 and the universal joint seat 7, and ensures flexible rotation.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Steering Controls (AREA)
  • Sealing Devices (AREA)
  • Diaphragms And Bellows (AREA)

Abstract

一种柔性万向传动装置，包括相向伸出的第一传动轴（1）和第二传动轴（2），第一传动轴（1）通过第一万向节与连接套（3）连接，第二传动轴（2）通过第二万向节与连接轴（4）连接，连接轴（4）的左端可转动地插接于连接套（3）的右端口中，连接套（3）的外周套装有扭簧（6），扭簧（6）的两端分别固定在扭簧定位柱（6a）上，左右两端的扭簧定位柱（6a）分别固定在连接套（3）和连接轴（4）的圆周上。万向节包括万向节座（7）和万向节十字环（8），万向节座（7）与万向节十字环（8）的长向环体之间通过十字环半销（8a）相铰接，十字环传动销（8b）沿万向节十字环（8）的短轴插入并贯穿传动轴（1,2）及万向节十字环（8）。该装置可实现两传动件在圆周方向的弹性连接，缓冲传动中的冲击，使用寿命长。

Description

一种柔性万向传动装置 技术领域
本发明涉及一种传动装置，尤其涉及一种柔性万向传动装置，属于传动机械技术领域。
背景技术
为了节约安装空间，或者由于各自结构的原因，许多设备的动力输出装置与执行件例如减速箱之间的距离比较远，而且经常动力输出装置与执行件的输入轴不能保证在同一条轴线上。有些设备例如汽车、草坪机的发动机等，在工作中会因为振动导致发动机与减速箱相对位置的轻微变化。为了适应这种变化并获得较高的传动效率，发动机的输出轴与减速箱的输入轴之间通常采用万向传动轴进行刚性连接。
传统的万向传动轴，两轴端分别安装有球笼式万向节，采用类似于关节头和关节窝的结构，一根轴的轴端设有关节头，另一根轴的轴端设有关节窝，关节头位于关节窝的腔体中，关节头的球体上设有开口槽，开口槽中衔接着圆柱销，圆柱销的两端支撑在关节窝内。关节头的开口槽使得关节头的根部非常薄弱，受力状态不佳，容易折断，传递功率小，使用寿命短，损坏率高。即使关节头得到加强，但在启动/停止频繁的应用场合，这种刚性传动还会将起/停冲击作用于传动路线中最薄弱零件并引起相关零部件过早损坏。
发明内容
本发明的目的在于，克服现有技术中存在的问题，提供一种柔性万向传动装置，强度高，两连接轴在圆周方向实现弹性连接传递扭矩，可缓冲传动中的冲击，使用寿命长。
为解决以上技术问题，本发明的一种柔性万向传动装置，包括相向伸出 的第一传动轴和第二传动轴，所述第一传动轴通过第一万向节与连接套连接，所述第二传动轴通过第二万向节与连接轴连接，所述连接轴的左端可转动地插接于所述连接套的右端口中，所述连接套的外周套装有扭簧，所述扭簧的两端分别固定在扭簧定位柱上，其中左端的扭簧定位柱固定在所述连接套的圆周上，右端的扭簧定位柱固定在所述连接轴的圆周上。
相对于现有技术，本发明取得了以下有益效果：第一万向节在第一传动轴与连接套之间传递扭矩并可以补偿两者之间的角度或同轴度误差，第二万向节在第二传动轴与连接轴之间传递扭矩并可以补偿两者之间的角度或同轴度误差，同时连接轴在连接套中可转动和轴向移动并且可以补偿轴向或圆周方向的位移误差，扭簧在连接轴与连接套之间传递扭矩。该传动装置没有受力状况不佳且结构上比较薄弱的部件，不容易损坏，可以传递较大的扭矩，使用寿命长；扭簧的弹性可以吸收传动中的冲击力，实现了从第一传动轴到第二传动轴之间扭矩的柔性传递。
作为本发明的改进，所述第一万向节与第二万向节分别包括万向节座和万向节十字环，所述万向节十字环的截面呈长圆形且位于相应万向节座内端头的内腔，所述万向节座与相应万向节十字环的长向环体之间分别通过十字环半销相铰接，十字环传动销分别沿万向节十字环的短轴插入并贯穿万向节十字环；所述万向节座内端头的外圆周上分别设有半销环槽，所述半销环槽与所述十字环半销位于同一个截面上，所述半销环槽中卡接有半销挡圈。
所述半销挡圈可为任意合适的材料，优选但不限于钢丝。
本发明中使用的术语“长圆形”意指具有相互垂直的的长轴和短轴的类似圆的形状，如但不限于椭圆形。
本发明中的用语“半销环槽与所述十字环半销位于同一个截面上”意指 半销环槽在其槽宽中间位置的径向截面与所述十字环半销中心线位于传动轴的同一个径向截面上。
十字环传动销沿万向节十字环的短轴方向插入，将万向节十字环固定在连接套或连接轴的外侧轴端，十字环半销的轴线平行于万向节十字环的长轴，万向节十字环在万向节座中可以绕共轴线的两根十字环半销在一定范围内转动，通过万向节十字环与万向节座的配合在两侧传动轴之间传递扭矩，并且补偿两轴在同轴度上的误差。半销挡圈嵌在半销环槽中可以将十字环半销限制在销孔内，防止滑出，保证万向节十字环与万向节座铰接良好。半销挡圈优选由钢丝制成，但并不局限于此，只要能够将十字环半销限制在销孔内，防止其滑出即可。
作为本发明的进一步改进，所述第一传动轴的右端插接于所述第一万向节的万向节座的左端，并且通过万向节座传动销与相应万向节座相连接；所述连接套的左端设有连接套台阶轴，所述连接套台阶轴插接于所述第一万向节的万向节十字环内腔，相应所述十字环传动销垂直贯穿所述连接套台阶轴。第一传动轴通过万向节座传动销与第一万向节的万向节座固定连接，连接套通过连接套台阶轴和十字环传动销与第一万向节的万向节十字环固定连接，通过第一万向节的万向节座与万向节十字环之间的配合，在第一传动轴与连接套之间传递扭矩并可以补偿两者之间的位移误差。
作为本发明的进一步改进，所述第二传动轴的左端插接于所述第二万向节的万向节座的右端，并且通过万向节座传动销与相应万向节座相连接；所述连接轴的右端插接于所述第二万向节的万向节十字环内腔，相应所述十字环传动销垂直贯穿所述连接轴。第二传动轴通过万向节座传动销与第二万向节的万向节座固定连接，连接轴通过十字环传动销与第二万向节的万向节十 字环固定连接，通过第二万向节的万向节座与万向节十字环之间的配合，在第二传动轴与连接轴之间传递扭矩并可以补偿两者之间的位移误差。
作为本发明的进一步改进，所述万向节座外端头的外圆周上分别设有长销环槽，所述长销环槽与相应万向节座传动销位于同一个截面上，所述长销环槽中卡接有传动销卡箍。传动销钢丝卡箍挡在万向节座传动销的外端头外侧，将万向节座传动销控制在销孔内。
所述传动销卡箍可采用任意合适的材料，如但不限于钢丝。
本发明中的用语“长销环槽与相应万向节座传动销位于同一个截面上”意指长销环槽在其槽宽中间位置的径向截面与所述相应万向节座传动销中心线位于传动轴的同一个径向截面上。
作为本发明的进一步改进，所述连接轴的左端与所述连接套的内壁之间设有尼龙套。尼龙套可以减小连接轴在连接套中转动或滑动时的摩擦力。
作为本发明的进一步改进，所述第一万向节的万向节座外周套装有第一万向节防尘套，所述第一万向节防尘套的右端卡接在所述连接套台阶轴的轴颈上；所述第一万向节防尘套的左端卡接在相应万向节座的中部圆周上，所述第一万向节防尘套的左端头外周设有第一万向节防尘套密封圈槽，所述第一万向节防尘套密封圈槽中嵌装有O形圈。第一万向节防尘套可以阻止灰尘进入第一万向节的万向节十字环与万向节座相配合的部位，且保证转动灵活。
作为本发明的进一步改进，所述第二万向节的万向节座外周套装有第二万向节防尘套，所述第二万向节防尘套的左端卡接在所述连接轴的轴颈上；所述第二万向节防尘套的右端卡接在相应万向节座的中部圆周上，所述第二万向节防尘套的右端头外周设有第二万向节防尘套密封圈槽，所述第二万向节防尘套密封圈槽中嵌装有O形圈。第二万向节防尘套可以阻止灰尘进入第 二万向节的万向节十字环与万向节座相配合的部位，且保证转动灵活。
作为本发明的优选方案，所述第一传动轴为动力输出轴，所述第二传动轴为变速箱输入轴。
附图说明
下面结合附图和具体实施方式对本发明作进一步详细的说明，附图仅提供参考与说明用，非用以限制本发明。
图1为本发明柔性万向传动装置的主视图。
图2为图1的立体分解图。
图中：1.第一传动轴；2.第二传动轴；3.连接套；3a.连接套台阶轴；4.连接轴；5.尼龙套；6.扭簧；6a.扭簧定位柱；7.万向节座；7a.万向节座传动销；7b.半销环槽；7c.长销环槽；8.万向节十字环；8a.十字环半销；8b.十字环传动销；9.半销钢丝挡圈；10.传动销钢丝卡箍；11.第一万向节防尘套；12.第二万向节防尘套；13.O形圈。
具体实施方式
下面将参照附图对本发明作进一步描述。应该理解，附图中所示出的实施例仅为描述本发明用，不应解释为对本发明的任何限制。本发明的范围由所附的权利要求进行限定。
应当理解，本发明的附图仅用来例示本发明，未必按比例绘制。
还应当理解，本发明中可能出现的方向性术语，如“上面”、“下面”、“右”、“左”、“前”、“后”、“底”、“顶”、“上部”、“下部”等等仅为方便于描述本发明，不应以任何方式解释为对本发明的限制。
还需要指出，本发明中可能出现的“第一”、“第二”等序数词只是为了描述方便对所要描述的要素进行区分，不应解释为以任何方式限定这些要素 的先后顺序。
如图1、图2所示，本发明的柔性万向传动装置包括相向伸出的第一传动轴1和第二传动轴2，第一传动轴1可以为动力输出轴，第二传动轴2可以为变速箱输入轴。第一传动轴1通过第一万向节与连接套3连接，第二传动轴2通过第二万向节与连接轴4连接，连接轴4的左端可转动地插接于连接套3的右端口中，连接套3的外周套装有扭簧6，扭簧6的两端分别固定在扭簧定位柱6a上，其中左端的扭簧定位柱6a固定在连接套3的圆周上，右端的扭簧定位柱6a固定在连接轴4的圆周上。
第一万向节在第一传动轴1与连接套3之间传递扭矩并可以补偿两者之间的角度或同轴度误差，第二万向节在第二传动轴2与连接轴4之间传递扭矩并可以补偿两者之间的角度或同轴度误差，同时连接轴4在连接套3中可转动和轴向移动并且可以补偿轴向或圆周方向的的位移误差，扭簧6在连接轴4与连接套3之间传递扭矩。扭簧6的弹性可以吸收传动中的冲击力，实现了从第一传动轴1到第二传动轴2之间扭矩的柔性传递。
第一万向节与第二万向节分别包括万向节座7和万向节十字环8，万向节十字环8的截面呈长圆形且位于相应万向节座内端头的内腔，万向节座7与相应万向节十字环8的长向环体之间分别通过十字环半销8a相铰接，十字环传动销8b分别沿万向节十字环8的短轴插入并贯穿万向节十字环8；万向节座内端头的外圆周上分别设有半销环槽7b，半销环槽7b与十字环半销8a位于同一个截面上，半销环槽7b中卡接有半销钢丝挡圈9。
十字环传动销8b沿万向节十字环8的短轴方向插入，将万向节十字环8固定在连接套3或连接轴4的外侧轴端，十字环半销8a的轴线平行于万向节十字环8的长轴，万向节十字环8在万向节座7中可以绕共轴线的两根十字 环半销8a在一定范围内转动，通过万向节十字环8与万向节座7的配合在两侧传动轴之间传递扭矩，并且补偿两轴在同轴度上的误差。半销钢丝挡圈9嵌在半销环槽7b中可以将十字环半销8a限制在销孔内，防止滑出，保证万向节十字环8与万向节座7铰接良好。
第一传动轴1的右端插接于第一万向节的万向节座7的左端，并且通过万向节座传动销7a与相应万向节座7相连接；连接套3的左端设有连接套台阶轴3a，连接套台阶轴3a插接于第一万向节的万向节十字环8内腔，相应十字环传动销8b垂直贯穿连接套台阶轴3a。第一传动轴1通过万向节座传动销7a与第二万向节的万向节座7固定连接，连接套3通过连接套台阶轴3a和十字环传动销8b与第一万向节的万向节十字环8固定连接，通过第一万向节的万向节座7与万向节十字环8之间的配合，在第一传动轴1与连接套3之间传递扭矩并可以补偿两者之间的位移误差。
第二传动轴2的左端插接于第二万向节的万向节座7的右端，并且通过万向节座传动销7a与相应万向节座7相连接；连接轴4的右端插接于第二万向节的万向节十字环8内腔，相应十字环传动销8b垂直贯穿连接轴4。第二传动轴2通过万向节座传动销7a与第二万向节的万向节座7固定连接，连接轴4通过十字环传动销8b与第二万向节的万向节十字环8固定连接，通过第二万向节的万向节座7与万向节十字环8之间的配合，在第二传动轴2与连接轴4之间传递扭矩并可以补偿两者之间的位移误差。
万向节座7外端头的外圆周上分别设有长销环槽7c，长销环槽7c与相应万向节座传动销7a位于同一个截面上，长销环槽7c中卡接有传动销钢丝卡箍10。传动销钢丝卡箍10挡在万向节座传动销7a的外端头外侧，将万向节座传动销7a控制在销孔内。
连接轴4的左端与连接套3的内壁之间设有尼龙套5。尼龙套5可以减小连接轴4在连接套3中转动或滑动时的摩擦力。
第一万向节的万向节座7外周套装有第一万向节防尘套11，第一万向节防尘套11的右端卡接在连接套台阶轴3a的轴颈上；第一万向节防尘套11的左端卡接在相应万向节座7的中部圆周上，第一万向节防尘套11的左端头外周设有第一万向节防尘套密封圈槽，第一万向节防尘套密封圈槽中嵌装有O形圈13。第一万向节防尘套11可以阻止灰尘进入第一万向节的万向节十字环8与万向节座7相配合的部位，且保证转动灵活。
第二万向节的万向节座7外周套装有第二万向节防尘套12，第二万向节防尘套12的左端卡接在连接轴4的轴颈上；第二万向节防尘套12的右端卡接在相应万向节座7的中部圆周上，第二万向节防尘套12的右端头外周设有第二万向节防尘套密封圈槽，第二万向节防尘套密封圈槽中嵌装有O形圈13。第二万向节防尘套12可以阻止灰尘进入第二万向节的万向节十字环8与万向节座7相配合的部位，且保证转动灵活。
以上所述仅为本发明之较佳可行实施例而已，非因此局限本发明的专利保护范围。除上述实施例外，本发明还可以有其他实施方式。凡采用等同替换或等效变换形成的技术方案，均落在本发明要求的保护范围内。本发明未经描述的技术特征可以通过或采用现有技术实现，在此不再赘述。

Claims (10)

  1. 一种柔性万向传动装置，包括相向伸出的第一传动轴和第二传动轴，其特征在于：所述第一传动轴通过第一万向节与连接套连接，所述第二传动轴通过第二万向节与连接轴连接，所述连接轴的左端可转动地插接于所述连接套的右端口中，所述连接套的外周套装有扭簧，所述扭簧的两端分别固定在扭簧定位柱上，其中左端的扭簧定位柱固定在所述连接套的圆周上，右端的扭簧定位柱固定在所述连接轴的圆周上。
  2. 根据权利要求1所述的柔性万向传动装置，其特征在于：所述第一万向节与第二万向节分别包括万向节座和万向节十字环，所述万向节十字环的截面呈长圆形且位于相应万向节座内端头的内腔，所述万向节座与相应万向节十字环的长向环体之间分别通过十字环半销相铰接，十字环传动销分别沿万向节十字环的短轴插入并贯穿万向节十字环；所述万向节座内端头的外圆周上分别设有半销环槽，所述半销环槽与所述十字环半销位于同一个截面上，所述半销环槽中卡接有半销挡圈。
  3. 根据权利要求2所述的柔性万向传动装置，其特征在于：所述第一传动轴的右端插接于所述第一万向节的万向节座的左端，并且通过万向节座传动销与相应万向节座相连接；所述连接套的左端设有连接套台阶轴，所述连接套台阶轴插接于所述第一万向节的万向节十字环内腔，相应所述十字环传动销垂直贯穿所述连接套台阶轴。
  4. 根据权利要求2所述的柔性万向传动装置，其特征在于：所述第二传动轴的左端插接于所述第二万向节的万向节座的右端，并且通过万向节座传动销与相应万向节座相连接；所述连接轴的右端插接于所述第二万向节的万向节十字环内腔，相应所述十字环传动销垂直贯穿所述连接轴。
  5. 根据权利要求3或4所述的柔性万向传动装置，其特征在于：所述万向节座外端头的外圆周上分别设有长销环槽，所述长销环槽与相应万向节座传动销位于同一个截面上，所述长销环槽中卡接有传动销卡箍。
  6. 根据权利要求1至5中任一项所述的柔性万向传动装置，其特征在于：所述连接轴的左端与所述连接套的内壁之间设有尼龙套。
  7. 根据权利要求3所述的柔性万向传动装置，其特征在于：所述第一万向节的万向节座外周套装有第一万向节防尘套，所述第一万向节防尘套的右端卡接在所述连接套台阶轴的轴颈上；所述第一万向节防尘套的左端卡接在相应万向节座的中部圆周上，所述第一万向节防尘套的左端头外周设有第一万向节防尘套密封圈槽，所述第一万向节防尘套密封圈槽中嵌装有O形圈。
  8. 根据权利要求4所述的柔性万向传动装置，其特征在于：所述第二万向节的万向节座外周套装有第二万向节防尘套，所述第二万向节防尘套的左端卡接在所述连接轴的轴颈上；所述第二万向节防尘套的右端卡接在相应万向节座的中部圆周上，所述第二万向节防尘套的右端头外周设有第二万向节防尘套密封圈槽，所述第二万向节防尘套密封圈槽中嵌装有O形圈。
  9. 根据权利要求1至4中任一项所述的柔性万向传动装置，其特征在于：所述第一传动轴为动力输出轴，所述第二传动轴为变速箱输入轴。
  10. 根据权利要求5所述的柔性万向传动装置，其特征在于：所述半销挡圈为半销钢丝挡圈，所述传动销卡箍为传动销钢丝卡箍。
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