WO2016192344A1 - 一种吐丝机 - Google Patents

一种吐丝机 Download PDF

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Publication number
WO2016192344A1
WO2016192344A1 PCT/CN2015/096039 CN2015096039W WO2016192344A1 WO 2016192344 A1 WO2016192344 A1 WO 2016192344A1 CN 2015096039 W CN2015096039 W CN 2015096039W WO 2016192344 A1 WO2016192344 A1 WO 2016192344A1
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Prior art keywords
hollow shaft
support
disposed
bearing
bearing housing
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PCT/CN2015/096039
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English (en)
French (fr)
Inventor
陈莹卷
穆杨
王式研
李图学
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CISDI Engineering Co Ltd
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CISDI Engineering Co Ltd
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Application filed by CISDI Engineering Co Ltd filed Critical CISDI Engineering Co Ltd
Publication of WO2016192344A1 publication Critical patent/WO2016192344A1/zh
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/14—Guiding, positioning or aligning work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B41/00—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters

Definitions

  • the invention belongs to the technical field of metal rolling equipment, and relates to a loop forming device for forming a high-speed linear motion wire into a loop coil.
  • the rolling speed of modern high-speed wire production line has been increased from the early 40m/s to the current 120m/s, and the product specification range has been extended to ⁇ 5mm ⁇ 25mm.
  • the matching wire laying machine is responsible for rolling the straight wire. Bend at a certain angle of inclination and form a loop coil. The coil is dropped to the air-cooled roller path and transported to the collection station for collection.
  • the new generation of laying machines needs to meet higher wire laying machine speeds and wider wire laying machine specifications, which are used in wire laying machines.
  • the rotor part of the spinning function has a rotor mass of up to 1800 kg, and the rotor has a working speed of up to 2100 rpm. Therefore, during the working process of the laying machine, due to the bending of the wire, the rotor eccentricity and the high temperature working conditions cause the thermal deformation of the relevant parts, which will cause great periodic impact and vibration on the support parts such as the wire laying machine bearing, so that the bearing Shorter life and limit the speed of the laying machine. Therefore, effective shock absorption or suspension measures are the key to the stable operation of the laying machine.
  • the existing damping mechanism of the laying machine is to set up one large and one small two sets of rolling bearings with different clearances at the big end of the hollow shaft, and to flexibly mount the bearing seat of the small bearing, and add another damping to the bearing seat. Or a spring damper mechanism for absorbing the vibration energy of the spinning head at high speed, thereby achieving the purpose of reducing vibration.
  • this kind of structure puts extremely demanding requirements on the bearing clearance, the processing precision of the spinning head rotor and the box body, and the installation precision. If the installation adjustment is not in place, it is likely to cause the vibration shock of the spinning head rotor to only act.
  • the present invention provides a wire laying machine which overcomes the problems of the prior art that the load bearing has a low service life and the speed of the spinning machine is limited.
  • a laying machine comprising a rotor assembly having a wire for moving a high speed linear motion, a casing for supporting and fixing the rotor assembly, and a support member disposed on the casing for supporting the rotor assembly and A rotor assembly powering drive assembly, the rotor assembly including a hollow shaft having a large end and a small end, a spinning disc fixed to a large end of the hollow shaft, and a laying tube disposed in the hollow shaft, wherein: The large end of the hollow shaft has a first flange and a second flange extending in a radial direction, the spinning disc being fixed on an end surface of the second flange, the support member including a support structure disposed at a large end of the hollow shaft I and a support structure II disposed at a small end thereof, the support structure 1 includes a bearing seat fixed to the casing and a swingable arc support disposed between the bearing housing and the hollow shaft, the arc support The circular surface and the inner hole surface are respectively pressed against the inner
  • the engaging structure is a protrusion that is disposed on both sides of the arc support and extends along two sides of the arc
  • the snap fit structure is a groove that cooperates with the protrusion
  • the limiting structure is a radial limiting pin disposed on the arc surface of the bearing housing and/or an axial limiting pin disposed on the end surface of the bearing housing and radially distributed on the groove surface.
  • the arc support is provided with a radial limiting hole and an axial limiting hole respectively matched with the radial limiting nail and the axial limiting nail, so that the circular arc is supported in the bearing seat and can swing around the limiting pin .
  • the head of the radial limiting nail is an inner or outer hexagon bolt head
  • the middle part is a threaded connecting section and the tail part is an optical axis fixing section
  • the threaded connecting section is fixed on the bearing seat, and the optical axis fixing section Insert into the radial limit hole of the arc support.
  • the outer diameter of the circular arc support is smaller than the diameter of the bearing housing, and the outer diameter of the first flange of the hollow shaft is in a clearance fit with the inner diameter of the circular arc support.
  • the arc support is composed of at least three segment support blocks.
  • outer circle of the segment supporting block of the circular arc support may also be provided as an intermediate arc and a side bevel structure.
  • the support structure II is a tapered bearing or an angular bearing disposed in pairs.
  • the invention can increase the contact area with the hollow shaft and the bearing seat by setting the arc support, thereby increasing the radial load bearing capacity, and has a higher allowable rotation speed than the rolling bearing of the same size specification, thereby allowing the laying machine
  • Operating at higher speeds increases the spinning speed of the laying machine and increases the wire yield.
  • the high-speed rotation of the hollow shaft between the first flange of the hollow shaft and the surface of the inner surface of the circular bearing supports the oil film pressure combined with the circular arc bearing with the oscillating function to form a certain damping and elastic effect, which can buffer and absorb the load. Impact energy, which reduces the vibration of the laying machine and improves the smoothness of the laying machine.
  • Figure 1 is a schematic structural view of a laying machine of the present invention
  • Figure 2 is a cross-sectional view taken along line A-A of Figure 1;
  • Figure 3 is a partial enlarged view I of the arc support
  • Figure 4 is a partial enlarged view II of the arc support
  • Figure 5 is a schematic diagram of the damping structure of the support structure II
  • Figure 6 is a simplified diagram of the dynamics of the support structure II.
  • a spinning machine of the present embodiment includes a rotor assembly having a wire for moving a high-speed linear motion to form a loop coil, a case 1 for supporting and fixing the rotor assembly, and a case provided in the case a support member for supporting the rotor assembly 1 and a drive assembly 17 for powering the rotor assembly, the drive assembly 17 driving the rotor assembly to rotate at a high speed of 2100 rpm, the rotor assembly including a large end 3 and a small end 4 a hollow shaft 2, a spinning disc 5 fixed to the large end 3 of the hollow shaft, and a laying pipe 6 disposed in the hollow shaft 2, the large end of the hollow shaft having a first flange 7 extending in a radial direction And a second flange 8, the spinning disc 5 being fastened to the end surface of the second flange 8 by bolts, the support member comprising a support structure I disposed at the large end 3 of the hollow shaft and being disposed at the small end 4 thereof
  • the support member comprising a
  • Figure 5 is a schematic diagram of the damping structure of the supporting structure II
  • Figure 6 is a dynamic diagram of the supporting structure II, the damping principle: when the hollow shaft of the rotor assembly is rotated at a certain speed, the oil film force generated by the circular arc support Always acting along the direction of the actual axis of the hollow shaft to the direction of the circular bearing fulcrum, and because the circular bearing can swing at any time with the displacement of the hollow shaft, so that the oil film force of the circular bearing is completely dependent on The movement of the hollow shaft along the actual axis to the direction of the circular bearing fulcrum.
  • the resultant force of the circular arc support can be expressed as:
  • the contact area with the hollow shaft and the bearing housing can be increased, and the radial load bearing capacity can be increased.
  • Roller bearings of the same size have higher allowable speeds, thus allowing the laying machine to operate at higher speeds, increasing the spinning speed of the laying machine, thereby increasing the wire yield and forming in the support structure II.
  • tapered or angular bearings it can withstand large axial and radial loads at the same time, thereby offsetting the axial force acting on the rotor assembly by the drive assembly and reducing the wear on the bearing; at the same time, the hollow shaft rotates at high speed on the hollow shaft.
  • the oil film pressure generated between the first flange and the surface of the inner surface of the circular arc bearing combined with the circular arc bearing having the oscillating function can form a certain damping and elastic effect, can buffer and absorb the impact energy of the load, thereby reducing the laying machine Vibration, improve the smoothness and service life of the laying machine.
  • the engaging structure of the embodiment is a protrusion 11 which is disposed on both sides of the arc support and extends along two sides of the arc, and the snap fit structure is in a clearance fit with the protrusion 11 Groove 12.
  • the cross section of the protrusion 11 and the groove 12 can be rectangular or triangular, etc., and the embodiment is preferably rectangular. Convenient processing.
  • the limiting structure of the embodiment is a radial limiting pin 13 disposed on the arcuate surface of the bearing housing 9 and/or disposed on the end surface of the bearing housing on the groove area.
  • the axial limit pin 14 of the distribution that is, the radial limit pin 13 or the axial stop pin 14 or the radial limit pin 13 and the axial limit pin 14 are combined.
  • the embodiment preferably has an axial direction.
  • the solution of the limiting pin 14 and the clearance support on the arc bearing 10 and the axial limiting pin 14 and the axial limiting hole 16 cooperates, so that the arc support 10 can swing around the limit pin in the bearing seat 9, and has a certain angle adjustment capability.
  • the hollow shaft 2 rotates at a high speed, the hollow shaft 2 and the bearing housing can be automatically adjusted due to manufacturing errors, assembly errors, and the like. 9 different hearts.
  • the diameter of the outer circle of the circular arc bearing 10 is smaller than the diameter of the hole of the bearing housing 9, the contact area between the arc bearing 10 and the bearing housing 9 can be reduced, and the circular bearing 10 can be wound around the positioning pin in the bearing housing.
  • the rotation effect further improves the adjustment capability.
  • the outer diameter of the first flange 7 of the hollow shaft is matched with the diameter of the inner hole of the circular arc support 10, which facilitates the first flange 7 and the circular arc in the hollow shaft.
  • a stable thickness of the oil film layer is formed between the surfaces of the inner holes of the support 10, which forms a certain damping and elastic effect on the circular arc support 10, can buffer and absorb the impact energy of the load, thereby reducing the vibration of the laying machine and improving the operation of the laying head Stationarity.
  • the head of the radial limiting pin 13 is an inner or outer hex bolt head 18, the middle portion is a threaded connecting portion 19, and the tail portion is an optical axis fixing portion 20, and the threaded portion 19 is fixed to the bearing.
  • the optical axis fixing section 20 is inserted into the radial limiting hole 15 to move the arc support 10 to prevent it from moving along the curved surface of the bearing housing 9, but has a degree of freedom of transport, the optical axis
  • the end of the fixing section 20 is provided in a spherical shape, which can be easily inserted and the circular bearing 10 can be swung.
  • the arc support 10 is composed of at least three segment support blocks.
  • the outer circle of the segment support block of the arc support 10 is set to an intermediate arc.
  • the beveled structure on both sides, as shown in FIG. 3, makes the outer circle of the arc support 10 and the inner hole of the bearing housing 9 in good contact, and forms a pendulum space with the bearing seat 9, thereby increasing the positioning of the arc support 10
  • the amplitude of the nail swing increases its conformability.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

一种吐丝机，包括：转子组件、箱体(1)和设置在箱体上的支撑部件及驱动组件(17)。所述转子组件包括具有大端(3)和小端(4)的空心轴(2)、与空心轴大端固定的吐丝盘(5)，以及设置在空心轴内的吐丝管(6)。所述空心轴的大端具有向径向方向延伸的第一凸缘(7)和第二凸缘(8)。所述吐丝盘固定在第二凸缘的端面上。所述支撑部件包括设置于空心轴大端的支承结构I和设置于其小端的支承结构II。所述支承结构I包括固定于箱体上的轴承座(9)和可摆动的设置在轴承座与空心轴之间的圆弧支承(10)。由于支承可摆动，且具有一定角度调节能力，进而可增强整个设备的稳定性并提高其使用寿命。

Description

一种吐丝机 技术领域
本发明属于金属轧制设备技术领域，涉及一种使高速直线运动的线材形成环状线圈的成圈设备。
背景技术
现代化的高速线材生产线轧制速度已由早期的40m/s提高到了目前的120m/s，产品规格范围也已扩展至Φ5mm～Φ25mm，与之配套的吐丝机负责将轧制出的直条线材以一定的倾角弯曲并形成环状线圈，线圈跌落至风冷辊道后运输至集卷站完成集卷收集。为匹配日益提升的轧制速度，实现线材的高速吐丝成卷，新一代的吐丝机需要满足更高的吐丝机速度以及更宽的吐丝机规格，其中吐丝机中用于实现成圈功能的吐丝头转子部分由于为非对称回转结构，转子质量高达1800kg左右，且转子的工作转速最高需达到2100rpm。因此，吐丝机工作过程中由于线材弯曲不可避免的产生转子偏心以及高温工况引起相关零件的热变形，会对吐丝机轴承等支撑件产生很大的周期性冲击和振动，使轴承的寿命缩短并限制吐丝机速度的提升。因此有效的减震或避震措施是关系到吐丝机稳定工作的关键。
现有的吐丝机减震措施是在空心轴大端的设置一大一小两组不同游隙的滚动轴承，并将小轴承的轴承座进行柔性安装，并在该轴承座上另外增加一套阻尼或者弹簧减震机构，用以吸收吐丝头高速回转时的振动能量，从而达到减小振动的目的。但该种结构对于轴承的游隙、吐丝头转子及箱体的加工精度以及安装精度等均提出了极为苛刻的要求，如安装调整不到位，很可能造成吐丝头转子的振动冲击只作用在一个轴承上，而另一个轴承空转，不但不能降低吐丝机的振动，反而缩短了承载轴承的使用寿命。此外，由于吐丝头的特殊结构，大端回转直径较大，因此所采用的滚动轴承为尺寸较大的非标滚动轴承，将会限制吐丝机速度的进一步提升。
针对上述问题，有必要对现有吐丝机结构进行改进，利用组合式轴承特殊的动力学特性，起到支撑吐丝头转子平稳运转并实现转子的减震功能，从而提高吐丝机工作的平稳性，并可实现吐丝机速度的进一步提升。
发明内容
有鉴于此，本发明提供了一种吐丝机，克服了现有技术存在的承载轴承使用寿命不高、吐丝机速度受限的问题。
本发明的目的是通过以下技术方案实现的：
一种吐丝机，包括具有使高速直线运动的线材形成环状线圈的转子组件、用于支承和固定所述转子组件的箱体和设置在箱体上用于支撑转子组件的支撑部件及对转子组件提供动力的驱动组件，所述转子组件包括具有大端和小端的空心轴、与空心轴大端固定的吐丝盘，以及设置在空心轴内的吐丝管，其特征在于：所述空心轴的大端具有向径向方向延伸的第一凸缘和第二凸缘，所述吐丝盘固定在第二凸缘的端面上，所述支撑部件包括设置于空心轴大端的支承结构I和设置于其小端的支承结构II，所述支承结构I包括固定于箱体上的轴承座和可摆动的设置在轴承座与空心轴之间的圆弧支承，所述圆弧支承的外圆面和内孔表面分别压紧在轴承座内孔表面和空心轴第一凸缘的外圆面上，所述圆弧支承上设置有卡合结构，所述轴承座上设置有与卡合结构相匹配的卡合配合结构，所述轴承座上还设置有用于对圆弧支承限位并可绕其摆动的限位结构。
进一步，所述卡合结构为设置在圆弧支承两侧沿圆弧向两侧延伸的凸起，所述卡合配合结构为与所述凸起间隙配合的凹槽。
进一步，所述限位结构为设置在轴承座圆弧面上沿轴向分布的径向限位钉或/和设置在轴承座端面于凹槽区域上沿径向分布的轴向限位钉，所述圆弧支承上设置有分别与径向限位钉和轴向限位钉间隙配合的径向限位孔和轴向限位孔，使圆弧支承在轴承座中可以绕限位钉摆动。
进一步，所述径向限位钉的头部为内或外六角螺栓头、中部为螺纹连接段和尾部为光轴固定段，所述螺纹连接段固定在轴承座上，所述光轴固定段插入圆弧支承的径向限位孔内。
进一步，所述圆弧支承的外圆直径小于轴承座孔直径，所述空心轴第一凸缘的外圆直径与圆弧支承的内孔直径为间隙配合。
进一步，所述圆弧支承为至少三块以上的分段支承块组成。
进一步，所述圆弧支承的分段支承块的外圆也可设置为中间圆弧、两侧斜边结构。
进一步，所述支承结构II为成对设置的圆锥轴承或角轴承。
本发明的有益效果是：
本发明通过设置圆弧支承，可增加与空心轴和轴承座的接触面积，进而增大其径向受载能力，较相同尺寸规格的滚动轴承具有更高的许用转速，因此可允许吐丝机在更高的速度下运行，提高吐丝机的吐丝速度，进而提高线材的产量。同时，空心轴高速旋转在空心轴第一凸缘与圆弧支承内孔表面之间所产生的油膜压力结合具有摆动功能的圆弧支承可形成一定的阻尼和弹性效应，可缓冲和吸收载荷的冲击能量，从而降低吐丝机的振动，提升吐丝机的运转平稳性。
本发明的其他优点、目标和特征在某种程度上将在随后的说明书中进行阐述，并且 在某种程度上，基于对下文的考察研究对本领域技术人员而言将是显而易见的，或者可以从本发明的实践中得到教导。本发明的目标和其他优点可以通过下面的说明书来实现和获得。
附图说明
为了使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明作进一步的详细描述，其中：
图1为本发明吐丝机的结构示意图；
图2为图1的A-A剖视图；
图3为圆弧支承的局部放大视图I；
图4为圆弧支承的局部放大视图II；
图5为支撑结构II的减震原理图；
图6为支撑结构II的动力学简图。
附图标记：
1-箱体；2-空心轴；3-空心轴的大端；4-空心轴的小端；5-吐丝盘；6-吐丝管；7-第一凸缘；8-第二凸缘；9-轴承座；10-圆弧支承；11-凸起；12-凹槽；13-径向限位钉；14-轴向限位钉；15-径向限位孔；16-轴向限位孔；17-驱动组件；18-内或外六角螺栓头；19-螺纹连接段；20-光轴固定段。
具体实施方式
以下将参照附图，对本发明的优选实施例进行详细的描述。应当理解，优选实施例仅为了说明本发明，而不是为了限制本发明的保护范围。
如图1-4所示，本实施例一种吐丝机，包括具有使高速直线运动的线材形成环状线圈的转子组件、用于支承和固定所述转子组件的箱体1和设置在箱体1上用于支撑转子组件1的支撑部件及对转子组件提供动力的驱动组件17，所述驱动组件17可驱动转子组件高速旋转达到2100rpm，所述转子组件包括具有大端3和小端4的空心轴2、与空心轴大端3固定的吐丝盘5，以及设置在空心轴2内的吐丝管6，所述空心轴的大端具有向径向方向延伸的第一凸缘7和第二凸缘8，所述吐丝盘5用螺栓紧固在第二凸缘8的端面上，所述支撑部件包括设置于空心轴大端3的支承结构I和设置于其小端4的支承结构II，所述支承结构I包括固定于箱体1上的轴承座9和可摆动的设置在轴承座9与空心轴2之间的圆弧支承10，所述圆弧支承10通常由一层减磨材料及刚性基体组合制成，如巴氏合金+合金钢基体或多孔镶嵌式结构等，所述圆弧支承10的外圆面和内孔表面分别压紧在轴承座9内孔表面和空心轴第一凸缘 7的外圆面上，所述圆弧支承10上设置有卡合结构，所述轴承座9上设置有与卡合结构相匹配的卡合配合结构，所述轴承座9上还设置有用于对圆弧支承10限位并可绕其摆动的限位结构，所述支承结构II为成对设置的圆锥轴承或角轴承，可同时承受较大的轴向和径向载荷，从而抵消由驱动组件17对转子组件的轴向作用力，减少对轴承的磨损。
图5为支撑结构II的减震原理图、图6为支撑结构II的动力学简图，其减震原理：当转子组件的空心轴以某一转速旋转时，圆弧支承所产生的油膜力总是沿着空心轴的实际轴心到圆弧支承支点的方向而发生作用，又因为圆弧支承能随时随着空心轴的变位运动而摆动，从而使圆弧支承的油膜力完全取决于空心轴沿着实际轴心到圆弧支承支点方向上的运动。
圆弧支承所受合力可表示为：
Fta＝Fta(era，eta)
Fra＝Fra(era，eta)
油膜力对支点的力矩为Fra ra，若该力矩不为零，将使圆弧支承绕支点摆动，从而改变油膜厚度和油膜压力的分布，油膜力也随之而改变，直到Fra ra＝0才达到圆弧支承的平衡方位。也就是油膜力恰好通过圆弧支承的支点时才达到平衡，即Fta(era，eta)＝0，当era取定后，只有在一定的eta上才能达到圆弧支承的平衡。因此油膜力Fra只取决于era一个参数。
本实施例通过设置包括支承结构I及支承结构II的支承部件，并在支承结构I中设置圆弧支承，可增加与空心轴和轴承座的接触面积，可增大其径向受载能力，较相同尺寸规格的滚动轴承具有更高的许用转速，因此可允许吐丝机在更高的速度下运行，提高吐丝机的吐丝速度，进而提高线材的产量，并在支承结构II中成对设置圆锥轴承或角轴承，可同时承受较大的轴向和径向载荷，从而抵消由驱动组件对转子组件的轴向作用力，减少对轴承的磨损；同时，空心轴高速旋转在空心轴第一凸缘与圆弧支承内孔表面之间所产生的油膜压力结合具有摆动功能的圆弧支承可形成一定的阻尼和弹性效应，可缓冲和吸收载荷的冲击能量，从而降低吐丝机的振动，提升吐丝机的运转平稳性和使用寿命。
作为本实施例的改进，本实施例的卡合结构为设置在圆弧支承两侧沿圆弧向两侧延伸的凸起11，所述卡合配合结构为与所述凸起11间隙配合的凹槽12。装配时，只需将凸起11沿凹槽12轻轻滑入即可，装配方便快捷，所述凸起11与凹槽12的截面可为矩形或三角形等，本实施例优选为矩形，可方便加工。
作为本实施例的改进，本实施例的限位结构为设置在轴承座9圆弧面上沿轴向分布的径向限位钉13或/和设置在轴承座端面于凹槽区域上沿径向分布的轴向限位钉14，即包括径向限位钉13或轴向限位钉14或径向限位钉13和轴向限位钉14组合三种方案，本实施例优选轴向限位钉14的方案，并在圆弧支承10上设置与轴向限位钉14间隙配合的和轴向限位孔 16进行配合，使圆弧支承10在轴承座9中可以绕限位钉摆动，具有一定角度调节能力，空心轴2高速旋转时可自动调节因制造误差、装配误差等导致空心轴2和轴承座9的不同心。
作为本实施例的改进，所述圆弧支承10的外圆直径小于轴承座9孔直径，可以减少圆弧支承10与轴承座9的接触面积，促进圆弧支承10在轴承座内绕定位钉的转动效果，进一步提高其调节能力，另外，所述空心轴第一凸缘7的外圆直径与圆弧支承10的内孔直径为间隙配合，利于在空心轴第一凸缘7与圆弧支承10内孔表面之间形成稳定厚度的油膜层，对圆弧支承10形成一定的阻尼和弹性效应，可缓冲和吸收载荷的冲击能量，从而降低吐丝机的振动，提升吐丝机的运转平稳性。
作为本实施例的改进，所述径向限位钉13的头部为内或外六角螺栓头18、中部为螺纹连接段19和尾部为光轴固定段20，所述螺纹段19固定在轴承座9上，所述光轴固定段20插入径向限位孔15内，对圆弧支承10进行移动限位，防止其沿轴承座9弧面移动，但具有转运自由度，所述光轴固定段20的端部设置为球形，可方便轻松插入并可使圆弧支承10实现摆动。
作为本实施例的改进，所述圆弧支承10为至少三块以上的分段支承块组成，本实施例中，所述圆弧支承10的分段支承块的外圆设置为中间圆弧、两侧斜边结构，如图3所示，使圆弧支承10外圆与轴承座9内孔良好接触的同时，并与轴承座9之间形成摆空间，从而增大圆弧支承10绕定位钉摆动的幅度，提高其适形能力。
最后说明的是，以上实施例仅用以说明本发明的技术方案而非限制，尽管参照较佳实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本技术方案的宗旨和范围，其均应涵盖在本发明的权利要求范围当中。

Claims (8)

  1. 一种吐丝机，包括具有使高速直线运动的线材形成环状线圈的转子组件、用于支承和固定所述转子组件的箱体和设置在箱体上用于支撑转子组件的支撑部件及对转子组件提供动力的驱动组件，所述转子组件包括具有大端和小端的空心轴、与空心轴大端固定的吐丝盘，以及设置在空心轴内的吐丝管，其特征在于：所述空心轴的大端具有向径向方向延伸的第一凸缘和第二凸缘，所述吐丝盘固定在第二凸缘的端面上，所述支撑部件包括设置于空心轴大端的支承结构I和设置于其小端的支承结构II，所述支承结构I包括固定于箱体上的轴承座和可摆动的设置在轴承座与空心轴第一凸缘之间的圆弧支承，所述圆弧支承的外圆面和内孔表面分别弹性的压紧在轴承座内孔表面和空心轴第一凸缘的外圆面上，所述圆弧支承上设置有卡合结构，所述轴承座上设置有与卡合结构相匹配的卡合配合结构，所述轴承座上还设置有用于对圆弧支承限位并可绕其摆动的限位结构。
  2. 根据权利要求1所述的一种吐丝机，其特征在于：所述卡合结构为设置在圆弧支承两侧沿圆弧向两侧延伸的凸起，所述卡合配合结构为与所述凸起间隙配合的凹槽。
  3. 根据权利要求1所述的一种吐丝机，其特征在于：所述限位结构为设置在轴承座圆弧面上沿轴向分布的径向限位钉或/和设置在轴承座端面于凹槽区域上沿径向分布的轴向限位钉，所述圆弧支承上设置有分别与径向限位钉和轴向限位钉间隙配合的径向限位孔和轴向限位孔，使圆弧支承在轴承座中可以绕限位钉摆动。
  4. 根据权利要求3所述的一种吐丝机，其特征在于：所述径向限位钉的头部为内或外六角螺栓头、中部为螺纹连接段和尾部为光轴固定段，所述螺纹连接段固定在轴承座上，所述光轴固定段插入径向限位孔内。
  5. 根据权利要求1所述的一种吐丝机，其特征在于：所述圆弧支承的外圆直径小于轴承座孔直径，所述空心轴第一凸缘的外圆直径与圆弧支承的内孔直径为间隙配合。
  6. 根据权利要求1所述的一种吐丝机，其特征在于：所述圆弧支承为至少三块以上的分段支承块组成。
  7. 根据权利要求6所述的一种吐丝机，其特征在于：所述圆弧支承的分段支承块的外圆设置为中间圆弧、两侧斜边结构。
  8. 根据权利要求1所述的一种吐丝机，其特征在于：所述支承结构II为成对设置的圆锥轴承或角轴承。
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