WO2010127513A1 - 大摆角、大滑移量等速驱动轴总成 - Google Patents

大摆角、大滑移量等速驱动轴总成 Download PDF

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Publication number
WO2010127513A1
WO2010127513A1 PCT/CN2009/071932 CN2009071932W WO2010127513A1 WO 2010127513 A1 WO2010127513 A1 WO 2010127513A1 CN 2009071932 W CN2009071932 W CN 2009071932W WO 2010127513 A1 WO2010127513 A1 WO 2010127513A1
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WO
WIPO (PCT)
Prior art keywords
constant velocity
steel pipe
joint
shaped steel
swing angle
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Application number
PCT/CN2009/071932
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English (en)
French (fr)
Inventor
资小林
章国庆
陆建春
郑德信
Original Assignee
万向钱潮股份有限公司
万向集团公司
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Application filed by 万向钱潮股份有限公司, 万向集团公司 filed Critical 万向钱潮股份有限公司
Publication of WO2010127513A1 publication Critical patent/WO2010127513A1/zh

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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
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
    • F16D3/06—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow axial displacement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/02—Dead axles, i.e. not transmitting torque
    • B60B35/04—Dead axles, i.e. not transmitting torque straight
    • 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
    • F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
    • F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
    • 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
    • F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
    • F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
    • F16D2003/22323—Attachments to the shaft of the inner joint member whereby the attachments are distanced from the core

Definitions

  • the present invention relates to a high swing angle, large slip amount, constant speed drive shaft, and is a technical field of mechanical devices that transmit motion and torque.
  • the drive shaft structure of the double universal joint transmission is used to rotate the output shaft and the input shaft in the same plane.
  • most of the drive shaft structures used in automobiles use the traditional intermediate half shaft and the axially fixed type of constant velocity universal joint and the gearbox end of the ball cage type which are respectively connected to the wheel ends at the two ends of the intermediate half shaft.
  • the drive shaft structure of the speed universal joint adjusts the wheel to reach a deep pit or convex by slipping the constant velocity joint of the slip and the arcuate ball path of the ball cage center fixed type constant velocity joint.
  • the length and angle of the drive shaft assembly of the platform are changed, but the maximum swing angle of the slipable constant velocity joint can only reach 23°, and the maximum axial slip is about 50mm, due to its swing angle.
  • a patent application called a semi-axis sliding large swing angle constant velocity joint drive shaft assembly (Patent No.: CN200720043853 . 9) has been proposed, which includes a ball cage type center fixed type constant velocity universal direction.
  • a central half shaft that is connected to a ball cage type center fixed type constant velocity joint the ball cage type center fixed type constant velocity joint includes a bell shell, a cage, a steel ball, a star sleeve, and a dustproof a cover
  • the steel ball is mounted in the star sleeve through a cage
  • the inner wall of the bell shell is provided with an arcuate fairway that cooperates with the steel ball
  • the other end of the middle half shaft is symmetrically disposed with another ball cage
  • the central fixed type constant velocity joint comprises a coaxially disposed left and right inner sliding shafts, and the outer ends of the two inner sliding shafts are respectively fixed at the two ends of the ball cage In the star-shaped sleeve of the central fixed type constant velocity joint, the outer end
  • the above-mentioned drive shaft assembly can increase the maximum swing angle and the maximum axial slip amount of the constant velocity joint drive shaft assembly to a certain extent, the two ball cage type fixed type of the above drive shaft assembly, etc.
  • the connection structure between the speed universal joints is complicated, the assembly is difficult, the number of parts is large, the manufacturing cost is high, and the overall weight is heavy.
  • the object of the present invention is to provide a large swing angle, large slip amount, constant speed drive shaft assembly with simple structure, convenient assembly, small number of parts, low manufacturing cost, and overall light weight.
  • the connection structure between the two ball cage type fixed type constant velocity joints existing in the existing drive shaft assembly is complicated, the assembly is difficult, the number of parts is large, the manufacturing cost is high, and the whole is Heavy weight and other issues.
  • the above technical object of the present invention is mainly solved by the following technical solutions: It comprises left fixed type spherical cage constant velocity joints and right fixed type spherical cage constant velocity joints respectively disposed at both ends, the left
  • the fixed type cage constant velocity joint and the right fixed type cage constant velocity joint include a bell shell, a cage, a steel ball, a star sleeve, and a dust cover, and the steel ball is mounted on the star through the cage
  • the inner wall of the bell-shaped shell is provided with an arc-shaped fairway that cooperates with the steel ball, and one end of the left middle half-shaft is fitted in the star-shaped sleeve of the left-fixed type spherical cage constant velocity joint, and one end of the right middle half shaft
  • the other end of the left middle half shaft is fixedly connected with one end of the left shaped steel pipe, and the other end of the other end of the
  • the left profiled steel pipe and the right profiled steel pipe are first joined to each other, and then one end of the left profiled steel pipe is assembled with the end of the left intermediate half shaft, and one end of the right profiled steel pipe and the right middle half axle are assembled.
  • the end assembly can complete the connection of two ball cage type central fixed type constant velocity joints.
  • the structure is very simple, the assembly is very convenient, and the number of parts is also small.
  • both the left-shaped steel pipe and the right-shaped steel pipe are The hollow structure is relatively low in manufacturing cost, and the overall weight of the present invention can be alleviated.
  • one end of the left middle half shaft connected to the left profiled steel tube is formed with a left joint, and the left joint is formed with a slot for inserting the end of the left shaped steel pipe, the left joint and the left joint
  • the ends of the steel pipe are connected by a pin hole wall passing through the left joint and a pin of the left shaped steel pipe wall;
  • the right middle half One end of the shaft connected to the right-shaped steel pipe is formed with a right joint, the right joint is formed with a slot for inserting the end of the right-shaped steel pipe, and the right joint and the right-shaped steel pipe end are passed through the right joint.
  • the slot hole wall is connected to the pin of the right shaped steel pipe wall.
  • forming a left connector at one end of the middle half shaft and forming a slot on the left connector facilitates the connection between the left profiled steel tube and the left middle half shaft, and forms a right connector at one end of the right middle half shaft and
  • the formation of the slot on the right connector facilitates the connection between the right profiled steel tube and the right intermediate half shaft, improving the reliability of the connection between the left profiled steel tube and the left intermediate half shaft and the right profiled steel tube and the right intermediate half shaft.
  • the pin connecting the left and left profiled steel pipe ends and the ends connecting the right and right profiled steel pipes are internally threaded tapered pins.
  • the internal thread taper pin can facilitate the disassembly between the left connector and the left profiled steel tube end and the connection between the right connector and the right profiled steel tube end.
  • the left-shaped steel pipe and the right-shaped steel pipe have a polygonal cross section.
  • the polygonal cross-sectional structure of the left-shaped steel pipe and the right-shaped steel pipe can improve the torsion and bending strength of the left-shaped steel pipe and the right-shaped steel pipe, and the reliability of the invention is improved.
  • each side of the polygonal structure has a wavy structure.
  • the rib-like structure is formed on each side of the polygonal cross-section of the left-shaped steel pipe and the right-shaped steel pipe to form a structure similar to the rib on the inner and outer surfaces of the left-shaped steel pipe and the right-shaped steel pipe, thereby further improving the left-shaped steel pipe And the torsion and bending strength of the right-shaped steel pipe.
  • the polygon is a regular polygon, which ensures uniform force of the left profiled steel pipe and the right profiled steel pipe.
  • the regular polygon is an equilateral triangle or a square or a regular pentagon or a regular hexagon.
  • the cross-section of the left-formed steel tube and the right-shaped steel tube with an equilateral triangle or square or regular pentagon or regular hexagon simplifies the manufacturing process, thereby reducing manufacturing costs.
  • the left profiled steel pipe and the right profiled steel pipe have an equal wall thickness structure.
  • the present invention has the characteristics of simple structure, convenient assembly, small number of parts, low manufacturing cost, and light overall weight.
  • Figure 1 is a schematic view showing an assembly structure of the present invention
  • Figure 2 is an enlarged view of the EE rotation
  • Figure 3 is an enlarged view of the FF rotation
  • Figure 7 is a cross-sectional view of a left shaped steel tube of the present invention.
  • Figure 5 is a cross-sectional view of a right profiled steel tube of the present invention.
  • Embodiment 1 As shown in Fig. 1, the left fixed type ball cage constant velocity joint 1 and the right fixed type ball cage constant velocity joint 2 are respectively disposed at both ends of the drive shaft, and the left fixed type ball cage is equal speed
  • the universal joint 1 and the right fixed type cage constant velocity joint 2 include a bell-shaped shell 3, a cage 4, a steel ball 5, a star sleeve 6, a dust cover 7, and the steel ball 5 is mounted on the star through the cage 4.
  • the inner wall of the bell-shaped shell 3 is provided with an arc-shaped fairway that cooperates with the steel ball 5, and one end of the left middle half-shaft 8 is fitted in the star-shaped sleeve 6 of the constant-fixed universal joint 1 of the left fixed type cage, right One end of the intermediate half shaft 9 is fitted in the star sleeve 6 of the right fixed type spherical cage constant velocity joint 2, and the other end of the left middle half shaft 8 is fixedly connected with one end of the left shaped steel pipe 10, and the left middle half shaft 8 is One end of the left-shaped steel pipe 10 is connected with a left joint 11 formed therein, and the left joint 11 is formed with a slot 12 for inserting the end of the left-shaped steel pipe 10, as shown in FIG.
  • the portions are connected by the slot hole wall passing through the left joint 11 and the pin 13 of the left profiled steel pipe 10; the other end of the right middle half shaft 9 is fixed to the end of the right profiled steel pipe 14 Connected, one end of the right middle half shaft 9 connected to the right profiled steel pipe 14 is formed with a right joint 15 formed with a slot 16 for inserting the end of the right profiled steel pipe 14, as shown in Fig. 2, right
  • the connector 15 is connected to the end of the right profiled steel tube 14 by a pin 16 that passes through the slot hole wall of the right connector 15 and the wall of the right profiled steel tube 14.
  • the pin 13 and the pin 16 that connect the left and left profiled steel pipe ends and the ends of the right and right profiled steel pipes are internally threaded tapered pins.
  • the other end of the left-shaped steel pipe 10 and the other end of the right-shaped steel pipe 14 are sleeved and axially slidable with each other, and the left-shaped steel pipe 10 and the right-shaped steel pipe 14 have the same cross-sectional shape.
  • the cross section of the left profiled steel pipe 10 and the right profiled steel pipe 14 has a regular quadrangular structure, and each side of the regularogram structure has a wavy structure, and the left profiled steel pipe 10 and the right profiled steel pipe 14 have an equal wall thickness structure.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Description

说明书 大摆角、 大滑移量等速驱动轴总成
技术领域
本发明涉及一种大摆角、 大滑移量等速驱动轴， 属于传递运动和扭矩的机械装 置的技术领域。
背景技术
汽车传动***中为使处于同一个平面内的输出轴与输入轴等速旋转常釆用双万 向节传动的驱动轴结构。 目前汽车上所用的驱动轴结构大多釆用传统的中间半 轴以及安装于中间半轴两端的分别接车轮端的球笼式中心固定型等速万向节和 接变速箱端的可轴向滑移等速万向节的驱动轴结构， 通过可滑移等速万向节的 滑移和钢球在球笼式中心固定型等速万向节的弧形球道转动来调整车轮碰到深 坑或凸台吋的传动轴总成的长度和角度的变化， 但是这种可滑移等速万向节的 最大摆角只能达到 23°， 最大轴向滑移量为 50mm左右， 由于受到其摆角和滑移量 的参数限制， 往往当车辆碰到恶劣的路况吋驱动轴总成的长度和角度的变化超 过了其参数极限的情况， 会造成中间轴从可滑移等速万向节中脱出或车轮悬空 、 中间轴与万向节外壳剧烈摩擦导致万向节失效等后果， 从而影响汽车的安全 性能。
为此， 有人提出了一种名为半轴滑移大摆角等速万向节驱动轴总成 （专利号： CN200720043853 . 9) 的专利申请， 它包括球笼式中心固定型等速万向节、 连接 于球笼式中心固定型等速万向节的中间半轴， 所述球笼式中心固定型等速万向 节包括钟形壳、 保持架、 钢球、 星形套、 防尘罩， 所述钢球通过保持架安装于 星形套内， 所述钟形壳内壁设有与钢球配合的弧形球道， 所述中间半轴的另一 端还对称设置有另一个球笼式中心固定式型等速万向节， 该中间半轴包括同轴 设置的左右两根内滑移轴杆、 所述的两根内滑移轴杆的外端分别固装在两端的 球笼式中心固定型等速万向节的星型套内， 其内端外侧同轴套接有外滑移轴筒 ， 所述的每个内滑移轴杆与外滑移轴筒的套接位置均对应设置有至少三组均布 的轴向直传动沟道， 所述两个内滑移轴杆的直传动沟道内均设置有与直传动沟 道形状适配的钢球保持架， 该两个钢球保持架上均设置有至少三排钢球窗口， 该钢球窗口内设置传动钢球。 上述驱动轴总成虽在一定程度上能增大等速万向 节驱动轴总成的最大摆角和最大轴向滑移量， 但上述驱动轴总成的两个球笼式 中心固定型等速万向节之间的连接结构较为复杂， 装配较为困难， 零部件数量 较多， 制造成本较高， 且整体的重量较重。
发明内容
[4] 本发明目的在于提供一种结构较为简单， 装配较为方便， 零部件数量较少， 制 造成本较低， 且整体的重量较轻的大摆角、 大滑移量等速驱动轴总成， 解决了 现有驱动轴总成存在的两个球笼式中心固定型等速万向节之间的连接结构较为 复杂， 装配较为困难， 零部件数量较多， 制造成本较高， 且整体的重量较重等 问题。
[5] 本发明的上述技术目的主要是通过以下技术方案解决的： 它包括分别设置在两 端的左固定型球笼等速万向节和右固定型球笼等速万向节， 所述左固定型球笼 等速万向节和右固定型球笼等速万向节包括钟形壳、 保持架、 钢球、 星形套、 防尘罩， 所述钢球通过保持架安装于星形套内， 所述钟形壳内壁设有与钢球配 合的弧形球道， 左中间半轴的一端配合在左固定型球笼等速万向节的星形套内 ， 右中间半轴的一端配合在右固定型球笼等速万向节的星形套内， 所述左中间 半轴的另一端与左异形钢管的一端固定连接， 所述右中间半轴的另一端与右异 形钢管的一端固定连接， 所述左异形钢管和右异形钢管内外套接且可相互间轴 向滑动， 所述左异形钢管和右异形钢管的截面形状相同。 本发明装配吋， 先将 左异形钢管和右异形钢管相互内外套接在一起， 而后将左异形钢管的一端与左 中间半轴的端部装配， 将右异形钢管的一端与右中间半轴的端部装配即可完成 两个球笼式中心固定型等速万向节的连接， 其结构非常简单， 装配非常方便， 零部件的数量也较少； 另外由于左异形钢管和右异形钢管均为空心结构， 故其 制造成本较低， 同吋， 还可减轻本发明的整体重量。
[6] 作为优选， 所述左中间半轴与左异形钢管连接的一端形成有左连接头， 所述左 连接头形成有可供左异形钢管端部***的槽孔， 左连接头与左异形钢管端部之 间通过穿过左连接头的槽孔孔壁和左异形钢管管壁的销子连接； 所述右中间半 轴与右异形钢管连接的一端形成有右连接头， 所述右连接头形成有可供右异形 钢管端部***的槽孔， 右连接头与右异形钢管端部之间通过穿过右连接头的槽 孔孔壁和右异形钢管管壁的销子连接。 其中， 在中间半轴的一端形成左连接头 并在左连接头上形成槽孔可便于左异形钢管和左中间半轴之间的连接， 而在右 中间半轴的一端形成右连接头并在右连接头上形成槽孔可便于右异形钢管和右 中间半轴之间的连接， 提高左异形钢管和左中间半轴及右异形钢管和右中间半 轴之间连接的可靠性。
[7] 作为优选， 所述连接左连接头和左异形钢管端部及连接右连接头和右异形钢管 端部的销子为内螺纹圆锥销。 其中， 内螺纹圆锥销可便于左连接头和左异形钢 管端部及连接右连接头和右异形钢管端部之间的拆卸。
[8] 作为优选， 所述左异形钢管和右异形钢管的截面呈多边形结构。 其中， 左异形 钢管和右异形钢管釆用多边形的截面结构可提高左异形钢管和右异形钢管的抗 扭和抗弯强度， 提高了本发明的可靠性。
[9] 作为优选， 所述多边形结构的每边呈波浪状结构。 其中， 将左异形钢管和右异 形钢管多边形截面的每边釆用波浪状结构从而可在左异形钢管和右异形钢管内 外表面分别形成类似于加强筋的结构， 从而可进一部提高左异形钢管和右异形 钢管的抗扭和抗弯强度。
[10] 作为优选， 所述多边形为正多边形， 可保证左异形钢管和右异形钢管的均匀受 力。
[11] 作为优选， 所述正多边形为正三角形或正方形或正五边形或正六边形。 左异形 钢管和右异形钢管的截面釆用正三角形或正方形或正五边形或正六边形可简化 制造工艺， 从而降低制造成本。
[12] 作为优选， 所述左异形钢管和右异形钢管呈等壁厚结构。
[13] 因此， 本发明具有构较为简单， 装配较为方便， 零部件数量较少， 制造成本较 低， 且整体的重量较轻等特点。
附图说明
[14] 图 1是本发明的一种装配结构示意图；
[15] 图 2是 E-E旋转放大视图； [16] 图 3是 F-F旋转放大视图；
[17] 图 4是本发明左异形钢管的一种截面视图；
[18] 图 5是本发明右异形钢管的一种截面视图。
最佳实施方式
[19] 下面通过实施例， 并结合附图， 对本发明的技术方案作进一步具体的说明。
[20] 实施例 1 : 如图 1所示， 驱动轴两端分别设置左固定型球笼等速万向节 1和右固 定型球笼等速万向节 2， 左固定型球笼等速万向节 1和右固定型球笼等速万向节 2 包括钟形壳 3、 保持架 4、 钢球 5、 星形套 6、 防尘罩 7， 钢球 5通过保持架 4安装于 星形套 6内， 钟形壳 3内壁设有与钢球 5配合的弧形球道， 左中间半轴 8的一端配 合在左固定型球笼等速万向节 1的星形套 6内， 右中间半轴 9的一端配合在右固定 型球笼等速万向节 2的星形套 6内， 左中间半轴 8的另一端与左异形钢管 10的一端 固定连接， 左中间半轴 8与左异形钢管 10连接的一端形成有左连接头 11， 左连接 头 11形成有可供左异形钢管 10端部***的槽孔 12， 如图 3所示， 左连接头 11与左 异形钢管 10端部之间通过穿过左连接头 11的槽孔孔壁和左异形钢管 10管壁的销 子 13连接； 右中间半轴 9的另一端与右异形钢管 14的一端固定连接， 右中间半轴 9与右异形钢管 14连接的一端形成有右连接头 15， 右连接头 15形成有可供右异形 钢管 14的端部***的槽孔 16， 如图 2所示， 右连接头 15与右异形钢管 14端部之间 通过穿过右连接头 15的槽孔孔壁和右异形钢管 14管壁的销子 16连接。 连接左连 接头和左异形钢管端部及连接右连接头和右异形钢管端部的销子 13和销子 16为 内螺纹圆锥销。
[21] 左异形钢管 10的另一端和右异形钢管 14的另一端内外套接且可相互间轴向滑动 ， 左异形钢管 10和右异形钢管 14的截面形状相同。 如图 4和图 5所示， 左异形钢 管 10和右异形钢管 14的截面呈正四边形结构， 正四边形结构的每边呈波浪状结 构， 左异形钢管 10和右异形钢管 14呈等壁厚结构。

Claims

权利要求书
[1] 一种大摆角、 大滑移量等速驱动轴总成， 其特征在于包括分别设置在两端 的左固定型球笼等速万向节和右固定型球笼等速万向节， 所述左固定型球 笼等速万向节和右固定型球笼等速万向节包括钟形壳、 保持架、 钢球、 星 形套、 防尘罩， 所述钢球通过保持架安装于星形套内， 所述钟形壳内壁设 有与钢球配合的弧形球道， 左中间半轴的一端配合在左固定型球笼等速万 向节的星形套内， 右中间半轴的一端配合在右固定型球笼等速万向节的星 形套内， 所述左中间半轴的另一端与左异形钢管的一端固定连接， 所述右 中间半轴的另一端与右异形钢管的一端固定连接， 所述左异形钢管和右异 形钢管内外套接且可相互间轴向滑动， 所述左异形钢管和右异形钢管的截 面形状相同。
[2] 根据权利要求 1所述的大摆角、 大滑移量等速驱动轴总成， 其特征在于所述 左中间半轴与左异形钢管连接的一端形成有左连接头， 所述左连接头形成 有可供左异形钢管端部***的槽孔， 左连接头与左异形钢管端部之间通过 穿过左连接头的槽孔孔壁和左异形钢管管壁的销子连接； 所述右中间半轴 与右异形钢管连接的一端形成有右连接头， 所述右连接头形成有可供右异 形钢管端部***的槽孔， 右连接头与右异形钢管端部之间通过穿过右连接 头的槽孔孔壁和右异形钢管管壁的销子连接。
[3] 根据权利要求 2所述的大摆角、 大滑移量等速驱动轴总成， 其特征在于所述 连接左连接头和左异形钢管端部及连接右连接头和右异形钢管端部的销子 为内螺纹圆锥销。
[4] 根据权利要求 1或 2或 3所述的大摆角、 大滑移量等速驱动轴总成， 其特征在 于所述左异形钢管和右异形钢管的截面呈多边形结构。
[5] 根据权利要求 4所述的大摆角、 大滑移量等速驱动轴总成， 其特征在于所述 多边形结构的每边呈波浪状结构。
[6] 根据权利要求 4所述的大摆角、 大滑移量等速驱动轴总成， 其特征在于所述 多边形为正多边形。
[7] 根据权利要求 6所述的大摆角、 大滑移量等速驱动轴总成， 其特征在于所述 正多边形为正三角形或正方形或正五边形或正六边形。
根据权利要求 1或 2所述的带轮毂轴承单元的等速万向节总成， 其特征在于 所述轴承单元的法兰盘式外圏的两端内壁与轮毂外圆及固定端万向节外圆 之间分别设有密封圏。
根据权利要求 6所述的大摆角、 大滑移量等速驱动轴总成， 其特征在于所述 左异形钢管和右异形钢管呈等壁厚结构。
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