CN106678189B - Double vibration damping type non-centering constant angular velocity universal coupling - Google Patents
Double vibration damping type non-centering constant angular velocity universal coupling Download PDFInfo
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- 238000005859 coupling reaction Methods 0.000 title claims abstract description 97
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- 238000013016 damping Methods 0.000 title claims abstract description 68
- 229920001973 fluoroelastomer Polymers 0.000 claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- 238000009434 installation Methods 0.000 claims abstract description 7
- 230000003139 buffering effect Effects 0.000 claims abstract description 5
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- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
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- 238000000429 assembly Methods 0.000 claims description 2
- 238000005255 carburizing Methods 0.000 claims description 2
- 229910021389 graphene Inorganic materials 0.000 claims description 2
- 238000005496 tempering Methods 0.000 claims description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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
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Abstract
本发明涉及双联减振型非定心式等角速万向联轴器，包括：输入轴、两套万向联轴器、中间轴、输出轴、固定轴承；固定轴承有两套分别与输入轴和输出轴的一端连接，输入轴的另一端连接万向联轴器，万向联轴器的三叉杆与中间轴的一端通过花键连接，中间轴的另一端通过花键与另一套万向联轴器的三叉杆连接；两套万向联轴器的传递元件采用滑块组件结构，滑块组件上安有氟橡胶弹性元件，在冲击载荷作用时起到缓冲吸振的效果；本发明当输入轴与输出轴之间存在一定偏转角时，两套万向联轴器和中间轴的连接及相互关系既保证了等角速传动又实现了大偏角大扭矩的传递，具有结构简单，制作成本低，安装方便，同步性能好，传输能力强的显著优点。
The invention relates to a double vibration-damping non-centering constant angular velocity universal coupling, which includes: an input shaft, two sets of universal couplings, an intermediate shaft, an output shaft, and a fixed bearing; there are two sets of fixed bearings, respectively. One end of the input shaft is connected to the output shaft, and the other end of the input shaft is connected to a universal coupling. The trident rod of the universal coupling is connected to one end of the intermediate shaft through splines, and the other end of the intermediate shaft is connected to the other end through splines. A set of universal couplings are connected by a three-pronged rod; the transmission elements of the two sets of universal couplings adopt a slider assembly structure. The slider assembly is equipped with a fluororubber elastic element, which has a buffering and vibration-absorbing effect when impact loads are applied; When there is a certain deflection angle between the input shaft and the output shaft of the present invention, the connection and mutual relationship between the two sets of universal couplings and the intermediate shaft not only ensures constant angular speed transmission but also realizes the transmission of large deflection angle and large torque, and has the advantages It has the obvious advantages of simple structure, low production cost, convenient installation, good synchronization performance and strong transmission capability.
Description
技术领域Technical field
本发明涉及到双联万向联轴器领域，具体的说是涉及到一种双联减振型非定心式等角速万向联轴器。The invention relates to the field of double universal couplings, and specifically to a double vibration-damping non-centering constant angular velocity universal coupling.
背景技术Background technique
在机械传动过程中，当主动轴与被动轴的轴线间存在一定的夹角时，需要利用万向联轴器来进行转矩的传递。目前机械行业所使用的联轴器的种类很多，其中较常用的主要有十字型万向联轴器、球笼式万向联轴器等；十字轴万向联轴器十字轴在传动中会产生附加动载荷，引起冲击、振动和噪声，所以不适用于高速和轴间夹角过大的场合。球笼式万向联轴器虽能实现大转矩的传递且为等角速传动，但这类万向联轴器存在着结构复杂，加工精度要求高，淬火硬度大，制作成本高，承载能力小，使用范围受到约束等缺点。During the mechanical transmission process, when there is a certain angle between the axes of the driving shaft and the driven shaft, a universal coupling is required to transmit torque. At present, there are many types of couplings used in the machinery industry, among which the more commonly used ones are cross-type universal couplings, ball cage universal couplings, etc.; the cross-shaft universal coupling cross shaft will It generates additional dynamic loads, causing impact, vibration and noise, so it is not suitable for high speeds and situations where the angle between the shafts is too large. Although the ball cage universal coupling can realize the transmission of large torque and is a constant angular speed transmission, this type of universal coupling has complex structure, high machining accuracy requirements, high quenching hardness, high production cost, and load-bearing problem. Shortcomings include small capacity and restricted scope of use.
本发明的目的在于克服现有等角速万向联轴器技术中存在的缺点，寻求设计制造一种结构简单新颖，制作成本低，安装方便，承载能力大，缓冲吸振的双联减振型非定心式等角速万向联轴器。The purpose of this invention is to overcome the shortcomings existing in the existing constant angular velocity universal coupling technology and seek to design and manufacture a double vibration-absorbing type with a simple and novel structure, low production cost, convenient installation, large load-bearing capacity, and buffering and vibration absorption. Non-centering constant angular velocity universal coupling.
发明内容Contents of the invention
为了实现上述发明目的，本发明提供一种结构简单新颖，制作成本低，安装方便，承载能力大的双联减振型非定心式等角速万向联轴器。In order to achieve the above-mentioned object of the invention, the present invention provides a double vibration-damping non-centering constant angular velocity universal coupling with a simple and novel structure, low manufacturing cost, convenient installation and large load-bearing capacity.
本发明所采用的技术方案如下：The technical solutions adopted by the present invention are as follows:
本发明双联减振型非定心式等角速万向联轴器，包括：输入轴、万向联轴器、中间轴、输出轴、固定轴承；所述万向联轴器有两套，采用面对面安装方式，所述固定轴承有两套，分别与所述输入轴和所述输出轴的一端连接，所述输入轴的另一端连接一套所述万向联轴器，所述万向联轴器的三叉杆与所述中间轴的一端通过花键连接，所述中间轴的另一端通过花键与另一套所述万向联轴器的三叉杆连接；所述万向联轴器包括：滑块组件，联轴器主体和三叉杆；所述滑块组件有三套，所述联轴器主体的套筒为圆柱形结构，所述套筒的筒壁上开有三组滑槽，呈120°分布；三套所述滑块组件分别安装在所述滑槽内；所述滑块组件包括：滑块约束层、氟橡胶减振层、滑块主体、关节轴承、滑动轴承；所述滑块主体为方形结构，所述滑块主体的中心安装所述关节轴承，所述关节轴承的内圈紧密配合所述滑动轴承，所述滑动轴承与所述三叉杆的叉杆配合组成滑动副；所述氟橡胶减振层对称粘附在所述滑块主体上并通过所述滑块约束层进行固定，所述滑块约束层的另一面与所述滑槽接触；所述氟橡胶减振层牢固的粘贴在所述滑块主体与所述滑块约束层之间，由于所述滑块约束层的粘贴，当所述氟橡胶减振层伸长时，有效的阻止所述氟橡胶减振层的伸长；相反，当系统发生振动所述氟橡胶减振层压缩时，所述滑块主体有效的阻止所述氟橡胶减振层的压缩，在阻止橡胶减振层伸长和压缩的同时，所述氟橡胶减振层内部产生剪切变形和应力而使材料耗散更多的能量，增大整个系统的吸振性能，提高系统的减振降噪功能。The double vibration-damping non-centering constant angular velocity universal coupling of the present invention includes: an input shaft, a universal coupling, an intermediate shaft, an output shaft, and a fixed bearing; there are two sets of universal couplings , adopting a face-to-face installation method, there are two sets of fixed bearings, which are respectively connected to one end of the input shaft and the output shaft, and the other end of the input shaft is connected to a set of the universal coupling, and the universal coupling is connected to the other end of the input shaft. The three-pronged rod of the coupling is connected to one end of the intermediate shaft through a spline, and the other end of the intermediate shaft is connected to the three-pronged rod of another set of the universal coupling through a spline; the universal coupling The shaft device includes: a slider assembly, a coupling body and a trident rod; there are three sets of the slider assembly, the sleeve of the coupling body is a cylindrical structure, and there are three sets of sliders on the wall of the sleeve. grooves, distributed at 120°; three sets of the slider components are installed in the slide grooves respectively; the slider components include: a slider constraint layer, a fluororubber damping layer, a slider body, a spherical bearing, and a sliding bearing. ; The main body of the slider has a square structure, and the spherical bearing is installed in the center of the main body of the slider. The inner ring of the spherical bearing closely matches the sliding bearing, and the sliding bearing cooperates with the fork of the three-pronged rod. forming a sliding pair; the fluororubber damping layer is symmetrically adhered to the slider body and fixed by the slider constraint layer, and the other side of the slider constraint layer is in contact with the slide groove; The fluororubber damping layer is firmly adhered between the slider body and the slider constraining layer. Due to the adhesion of the slider constraining layer, when the fluororubber damping layer stretches, it effectively prevents the The elongation of the fluororubber damping layer; on the contrary, when the system vibrates and the fluororubber damping layer is compressed, the slider body effectively prevents the compression of the fluororubber damping layer. While stretching and compressing, shear deformation and stress are generated inside the fluororubber damping layer, causing the material to dissipate more energy, increasing the vibration absorption performance of the entire system, and improving the vibration and noise reduction function of the system.
进一步的，三组所述滑槽的每组滑槽对称布置，所述滑槽表面进行渗碳淬火处理提高硬度，所述滑槽上开有三条凹槽，每条凹槽内固定有长条状保持架，保持架上嵌有高强度滚珠，并添加润滑剂，以此将所述滑块约束层与所述滑槽的滑动摩擦改变为滚动摩擦，来降低所述滑块约束层与所述滑槽的摩擦系数，从而控制磨损，提高传动精度。Furthermore, each of the three groups of chute is arranged symmetrically, and the surface of the chute is carburized and quenched to increase the hardness. There are three grooves on the chute, and a long strip is fixed in each groove. A cage-like cage is embedded with high-strength balls and lubricant is added to change the sliding friction between the slider constraint layer and the chute into rolling friction, thereby reducing the friction between the slider constraint layer and the slide groove. The friction coefficient of the chute is used to control wear and improve transmission accuracy.
进一步的，所述滑块约束层采用渗碳淬火热处理方式，提高表面硬度；所述滑块约束层一面与所述氟橡胶减振层粘附接触，一面与所述滑槽接触组成滚滑副。Furthermore, the slider constraint layer adopts carburizing and quenching heat treatment to improve the surface hardness; one side of the slider constraint layer is in adhesive contact with the fluororubber damping layer, and the other side is in contact with the slide groove to form a rolling pair. .
进一步的，所述万向联轴器主体采用40Cr材料并进行调质处理，所述万向联轴器主体的底部固定安装圆弧形弹性膜片，防止运动过程中所述中间轴撞击到所述万向联轴器主体。Furthermore, the main body of the universal coupling is made of 40Cr material and undergoes quenching and tempering treatment. An arc-shaped elastic diaphragm is fixedly installed at the bottom of the main body of the universal coupling to prevent the intermediate shaft from hitting the center shaft during movement. Describe the main body of the universal coupling.
进一步的，所述中间轴包括：轴端挡圈、花键轴、空心轴、实心轴、连接轴；所述轴端挡圈有两套，所述轴端挡圈上装有弹性膜片，所述花键轴有两段，所述轴端挡圈通过螺栓加止动垫圈形式与所述花键轴的外端规定连接，起到对万向联轴器的三叉杆轴向定位的作用，在非正常工作时所述轴端挡圈的弹性膜片配合所述万向联轴器主体的圆弧形弹性膜片起到缓冲吸振效果；所述花键轴上安装所述三叉杆，所述三叉杆的中心开有内花键，与所述花键轴配合，既起到导向作用同时又能实现大扭矩的传递；所述空心轴与所述花键轴连接成一体，所述空心轴上开有圆柱孔，圆柱孔与所述实心轴配合组成活塞结构，实现所述实心轴在所述空心轴内的滑动，从而实现所述中间轴的长度调节，满足双联减振型非定心式等角速万向联轴器的轴向位移补偿；所述实心轴与所述连接轴连接成一体，所述连接轴的另一端与所述花键轴连接成一体。Further, the intermediate shaft includes: a shaft end retaining ring, a spline shaft, a hollow shaft, a solid shaft, and a connecting shaft; there are two sets of shaft end retaining rings, and an elastic diaphragm is installed on the shaft end retaining ring, so The spline shaft has two sections. The shaft end retaining ring is connected to the outer end of the spline shaft through bolts and stop washers, which plays the role of axially positioning the three-pronged rod of the universal coupling. During abnormal operation, the elastic diaphragm of the shaft end retaining ring cooperates with the arc-shaped elastic diaphragm of the universal coupling body to achieve a buffering and vibration-absorbing effect; the trident rod is installed on the spline shaft, so There is an internal spline in the center of the three-pronged rod, which cooperates with the spline shaft to not only play a guiding role but also realize the transmission of large torque; the hollow shaft is connected to the spline shaft as a whole, and the hollow shaft is connected to the spline shaft. There is a cylindrical hole on the shaft, and the cylindrical hole cooperates with the solid shaft to form a piston structure to realize the sliding of the solid shaft in the hollow shaft, thereby realizing the length adjustment of the intermediate shaft to meet the needs of double vibration-damping type non-standard shafts. Axial displacement compensation of a centering constant angular velocity universal coupling; the solid shaft is connected to the connecting shaft to be integrated, and the other end of the connecting shaft is connected to the spline shaft to be integrated.
进一步的，所述输入轴与输出轴有偏转角转动时，所述滑块组件沿所述滑槽进行移动，输入轴轴线与输出轴轴线的最大偏转角达到45°，满足双联减振型非定心式等角速万向联轴器的角度补偿和径向位移补偿。Furthermore, when the input shaft and the output shaft rotate at a deflection angle, the slider assembly moves along the chute, and the maximum deflection angle between the input shaft axis and the output shaft axis reaches 45°, which satisfies the dual vibration damping type. Angle compensation and radial displacement compensation of non-centering constant angular velocity universal coupling.
进一步的，当双联减振型非定心式等角速万向联轴器独立运动时，根据扭矩传递的方向，所述输入轴和输出轴实现相互交替驱动。Furthermore, when the double damping type non-centering constant angular velocity universal coupling moves independently, the input shaft and the output shaft realize alternate driving with each other according to the direction of torque transmission.
进一步的，所述万向联轴器通过所述中间轴的面对面对称安装方式，解决了单个所述万向联轴器传动的准等角速传动特性，实现传动系统的存在偏转角时的完全等角速传动。Furthermore, the universal coupling solves the quasi-constant angular speed transmission characteristics of a single universal coupling transmission through the face-to-face symmetrical installation of the intermediate shaft, and realizes the complete transmission system when there is a deflection angle. Constant angular speed transmission.
进一步的，所述氟橡胶减振层采用石墨稀-氟橡胶材料，因石墨稀的分子结构，实现所述氟橡胶减振层的高强度及耐老化性，提高了双联减振型非定心式等角速万向联轴器的使用寿命。Furthermore, the fluororubber damping layer adopts graphene-fluororubber material. Due to the molecular structure of graphene, the high strength and aging resistance of the fluororubber damping layer are achieved, which improves the double damping type non-fixed structure. The service life of the radial constant angular velocity universal coupling.
本发明与现有的等角速万向联轴器相比，在结构上取消了加工精度及热处理精度要求高的球笼架，且具有结构简单，加工、安装方便，传载能力强，寿命高，制作价格低等优点。滑槽内的滚珠采用轴承钢，经精加工完成，具有高寿命、低噪声、低摩擦力、高可靠性的特点，实现了更大转矩的传递，亦能承受更大的载荷，同时滑槽的滚珠结构将摩擦方式改为滚动摩擦，既可以形成良好的润滑油膜同时又能降低磨损，提高传动精度；双联结构有效实现了传动系统的角位移补偿和径向位移补偿，同时采用可伸缩式中间轴结构，也实现了轴向位移补偿；滑块组件采用氟橡胶减振层牢固的粘贴在滑块主体与滑块约束层之间，滑块主体有效的阻止氟橡胶减振层的压缩，在阻止橡胶减振层伸长和压缩的同时，氟橡胶减振层内部产生剪切变形和应力而使材料耗散更多的能量，增大整个系统的吸振性能，提高系统的减振降噪功能。Compared with the existing constant angular velocity universal coupling, the present invention eliminates the need for a ball cage that requires high processing accuracy and heat treatment accuracy, and has the advantages of simple structure, convenient processing and installation, strong load transmission capacity and long service life. High, low production price and other advantages. The balls in the chute are made of bearing steel and are precision machined. They have the characteristics of long life, low noise, low friction and high reliability. They can achieve greater torque transmission and can withstand greater loads while sliding The grooved ball structure changes the friction method to rolling friction, which can not only form a good lubricating oil film but also reduce wear and improve transmission accuracy; the double structure effectively realizes the angular displacement compensation and radial displacement compensation of the transmission system, while using The telescopic intermediate shaft structure also realizes axial displacement compensation; the slider assembly uses a fluororubber damping layer to be firmly pasted between the slider body and the slider constraint layer. The slider body effectively prevents the fluororubber damping layer from Compression, while preventing the elongation and compression of the rubber damping layer, produces shear deformation and stress inside the fluororubber damping layer, causing the material to dissipate more energy, increasing the vibration absorption performance of the entire system, and improving the vibration damping of the system. Noise reduction function.
附图说明Description of the drawings
图1为本发明双联减振型非定心式等角速万向联轴器的三维结构图I；Figure 1 is a three-dimensional structural diagram I of the double damping type non-centering constant angular velocity universal coupling of the present invention;
图2为本发明双联减振型非定心式等角速万向联轴器的三维结构图II；Figure 2 is a three-dimensional structural diagram II of the double damping type non-centering constant angular velocity universal coupling of the present invention;
图3为本发明双联减振型非定心式等角速万向联轴器的中间轴；Figure 3 shows the intermediate shaft of the double damping type non-centering constant angular velocity universal coupling of the present invention;
图4为本发明双联减振型非定心式等角速万向联轴器的联轴器主体；Figure 4 is the coupling main body of the double damping type non-centering constant angular velocity universal coupling of the present invention;
图5为本发明双联减振型非定心式等角速万向联轴器的滑块组件；Figure 5 shows the slider assembly of the double damping type non-centering constant angular velocity universal coupling of the present invention;
图6为本发明双联减振型非定心式等角速万向联轴器的三叉杆；Figure 6 shows the three-pronged rod of the double damping type non-centering constant angular velocity universal coupling of the present invention;
图7为本发明双联减振型非定心式等角速万向联轴器偏转45°传动时三维结构图；Figure 7 is a three-dimensional structural diagram of the double damping type non-centering constant angular velocity universal coupling of the present invention when it is deflected at 45° for transmission;
图8为本发明双联减振型非定心式等角速万向联轴器的滑槽局部放大图；Figure 8 is a partial enlarged view of the chute of the double damping type non-centering constant angular velocity universal coupling of the present invention;
图中：1-输入轴，2-万向联轴器，3-中间轴，4-输出轴，5-固定轴承，20-滑块组件，21-联轴器主体，22-三叉杆，201-滑块约束层，202-氟橡胶减振层，203-滑块主体，204-关节轴承，205-滑动轴承，211-套筒，212-圆弧形弹性膜片，213-滑槽，31-轴端挡圈，32-花键轴，33-空心轴，34-实心轴，35-连接轴。In the picture: 1-Input shaft, 2-Universal coupling, 3-Intermediate shaft, 4-Output shaft, 5-Fixed bearing, 20-Slider assembly, 21-Coupling body, 22-Trident rod, 201 -Slider constraint layer, 202-fluorine rubber damping layer, 203-slider body, 204-joint bearing, 205-sliding bearing, 211-sleeve, 212-arc elastic diaphragm, 213-slide, 31 -Shaft end retaining ring, 32-spline shaft, 33-hollow shaft, 34-solid shaft, 35-connecting shaft.
具体实施方式Detailed ways
下面结合附图对发明做进一步的描述。The invention will be further described below in conjunction with the accompanying drawings.
如图1、2、3、4、5、6、7、8所示，双联减振型非定心式等角速万向联轴器，包括：输入轴1、万向联轴器2、中间轴3、输出轴4、固定轴承5；所述万向联轴器2有两套，采用面对面安装方式，所述固定轴承5有两套，分别与所述输入轴1和所述输出轴4的一端连接，所述输入轴1的另一端连接一套所述万向联轴器2，所述万向联轴器2的三叉杆22与所述中间轴3的一端通过花键连接，所述中间轴3的另一端通过花键与另一套所述万向联轴器2的三叉杆22连接；所述万向联轴器2包括：滑块组件20，联轴器主体21和三叉杆22；所述滑块组件20有三套，所述联轴器主体21的套筒211为圆柱形结构，所述套筒211的筒壁上开有三组滑槽213，呈120°分布；三套所述滑块组件20分别安装在所述滑槽213内；所述滑块组件20包括：滑块约束层201、氟橡胶减振层202、滑块主体203、关节轴承204、滑动轴承205；所述滑块主体203为方形结构，所述滑块主体203的中心安装所述关节轴承204，所述关节轴承204的内圈紧密配合所述滑动轴承205，所述滑动轴承205与所述三叉杆22的叉杆配合组成滑动副；所述氟橡胶减振层202对称粘附在所述滑块主体203上并通过所述滑块约束层201进行固定，所述滑块约束层201的另一面与所述滑槽213接触；三组所述滑槽213的每组滑槽对称布置，所述滑槽213表面进行渗碳淬火处理提高硬度，所述滑槽213上开有三条凹槽，每条凹槽内固定有长条状保持架，保持架上嵌有高强度滚珠，并添加润滑剂，以此将所述滑块约束层201与所述滑槽213的滑动摩擦改变为滚动摩擦，来降低所述滑块约束层201与所述滑槽213的摩擦系数，从而控制磨损，提高传动精度；所述中间轴3包括：轴端挡圈31、花键轴32、空心轴33、实心轴34、连接轴35；所述轴端挡圈31有两套，所述轴端挡圈31上装有弹性膜片，所述花键轴32有两段，所述轴端挡圈31通过螺栓加止动垫圈形式与所述花键轴32的外端规定连接，起到对万向联轴器2的三叉杆22轴向定位的作用，在非正常工作时所述轴端挡圈31的弹性膜片配合所述万向联轴器主体21的圆弧形弹性膜片起到缓冲吸振效果；所述花键轴32上安装所述三叉杆22，所述三叉杆22的中心开有内花键，与所述花键轴32配合，既起到导向作用同时又能实现大扭矩的传递；所述空心轴33与所述花键轴32连接成一体，所述空心轴33上开有圆柱孔，圆柱孔与所述实心轴34配合组成活塞结构，实现所述实心轴34在所述空心轴33内的滑动，从而实现所述中间轴3的长度调节，满足双联减振型非定心式等角速万向联轴器的轴向位移补偿；所述实心轴34与所述连接轴35连接成一体，所述连接轴35的另一端与所述花键轴32连接成一体。As shown in Figures 1, 2, 3, 4, 5, 6, 7, and 8, the double vibration-absorbing non-centering constant angular velocity universal coupling includes: input shaft 1, universal coupling 2 , intermediate shaft 3, output shaft 4, fixed bearing 5; there are two sets of universal coupling 2, which are installed face to face, and there are two sets of fixed bearings 5, which are respectively connected with the input shaft 1 and the output One end of the shaft 4 is connected, and the other end of the input shaft 1 is connected to a set of the universal coupling 2. The trident rod 22 of the universal coupling 2 is connected to one end of the intermediate shaft 3 through splines. , the other end of the intermediate shaft 3 is connected to another set of three-pronged rods 22 of the universal coupling 2 through splines; the universal coupling 2 includes: a slider assembly 20, a coupling body 21 and three-pronged rod 22; there are three sets of the slider assembly 20, the sleeve 211 of the coupling body 21 is a cylindrical structure, and there are three sets of slide grooves 213 on the wall of the sleeve 211, distributed at 120° ; Three sets of the slider assemblies 20 are respectively installed in the slide groove 213; the slider assembly 20 includes: a slider constraint layer 201, a fluororubber damping layer 202, a slider body 203, a spherical bearing 204, a slider Bearing 205; the slider body 203 has a square structure. The spherical bearing 204 is installed in the center of the slider body 203. The inner ring of the spherical bearing 204 closely matches the sliding bearing 205. The sliding bearing 205 and The forks of the three-pronged rod 22 cooperate to form a sliding pair; the fluororubber damping layer 202 is symmetrically adhered to the slider body 203 and fixed by the slider constraint layer 201. The other side of 201 is in contact with the chute 213; each of the three groups of chute 213 is arranged symmetrically. The surface of the chute 213 is carburized and quenched to increase the hardness. There are three holes in the chute 213. Grooves, a strip-shaped cage is fixed in each groove, and high-strength balls are embedded in the cage, and lubricant is added to change the sliding friction between the slider constraint layer 201 and the slide groove 213. For rolling friction, reduce the friction coefficient between the slider constraint layer 201 and the chute 213, thereby controlling wear and improving transmission accuracy; the intermediate shaft 3 includes: a shaft end retaining ring 31, a spline shaft 32, a hollow Shaft 33, solid shaft 34, connecting shaft 35; there are two sets of shaft end retaining rings 31, and elastic diaphragms are installed on the shaft end retaining rings 31. The spline shaft 32 has two sections, and the shaft end retaining rings 31 have two sets. The ring 31 is connected to the outer end of the spline shaft 32 through bolts and stop washers, and plays the role of axially positioning the trident rod 22 of the universal coupling 2. When the shaft end is not working normally, The elastic diaphragm of the retaining ring 31 cooperates with the arc-shaped elastic diaphragm of the universal coupling body 21 to achieve a buffering and vibration-absorbing effect; the trident rod 22 is installed on the spline shaft 32, and the trident rod 22 is There is an internal spline in the center, which cooperates with the spline shaft 32 to not only play a guiding role but also realize the transmission of large torque; the hollow shaft 33 is connected to the spline shaft 32 as a whole, and the hollow shaft 33 is connected to the spline shaft 32 as a whole. 33 has a cylindrical hole, and the cylindrical hole cooperates with the solid shaft 34 to form a piston structure to realize the sliding of the solid shaft 34 in the hollow shaft 33, thereby realizing the length adjustment of the intermediate shaft 3 to meet the requirements of double coupling. Axial displacement compensation of a vibration-absorbing non-centering constant angular velocity universal coupling; the solid shaft 34 is connected to the connecting shaft 35 as a whole, and the other end of the connecting shaft 35 is connected to the splined shaft 32 connected into one.
如图1、2、3、4、5、6、7、8所示，双联减振型非定心式等角速万向联轴器的工作方法具体步骤如下：As shown in Figures 1, 2, 3, 4, 5, 6, 7, and 8, the specific steps of the working method of the double vibration-damping non-centering constant angular velocity universal coupling are as follows:
所述输入轴1施加扭矩和运动，驱动所述万向联轴器2转动，经所述三叉杆22后将动力传递给所述中间轴3，所述中间轴3将动力传递给另一套所述万向联轴器2，然后再传递到所述输出轴4，实现等角速传动；当所述输入轴1和所述输出轴4之间存在偏转角时，所述滑块组件同时在所述万向联轴器2的所述滑槽213内滑动，同时将动力传递给所述三叉杆22，经所述中间轴3后将动力等角速传递到所述输出轴4，有效实现了传动系统的角位移补偿和径向位移补偿，同时所述中间轴2采用可伸缩式的结构，也实现了轴向位移补偿，所述输入轴1和所述输出轴4之间的最大偏转角达45°；当整个系统受到冲击载荷时，所述滑块组件同时在所述万向联轴器2的滑槽213内滑动，所述氟橡胶减振层202牢固的粘贴在所述滑块主体203与所述滑块约束层201之间，由于所述滑块约束层201的粘贴，当所述氟橡胶减振层202伸长时，有效的阻止所述氟橡胶减振层202的伸长；相反，当系统发生振动所述氟橡胶减振层202压缩时，所述滑块主体203有效的阻止所述氟橡胶减振层202的压缩，在阻止橡胶减振层伸长和压缩的同时，所述氟橡胶减振层202内部产生剪切变形和应力而使材料耗散更多的能量，增大整个系统的吸振性能，提高系统的减振降噪功能；当双联减振型非定心式等角速万向联轴器独立运动时，根据扭矩传递的方向，所述输入轴1和输出轴4实现相互交替驱动。The input shaft 1 exerts torque and movement to drive the universal coupling 2 to rotate, and transmits the power to the intermediate shaft 3 through the trident rod 22, and the intermediate shaft 3 transmits the power to another set of The universal coupling 2 is then transmitted to the output shaft 4 to achieve constant angular speed transmission; when there is a deflection angle between the input shaft 1 and the output shaft 4, the slider assembly simultaneously Sliding in the chute 213 of the universal coupling 2, the power is transmitted to the trident rod 22 at the same time. After passing through the intermediate shaft 3, the power is transmitted to the output shaft 4 at a constant angular speed, effectively The angular displacement compensation and the radial displacement compensation of the transmission system are realized. At the same time, the intermediate shaft 2 adopts a telescopic structure, and the axial displacement compensation is also realized. The maximum distance between the input shaft 1 and the output shaft 4 is The deflection angle reaches 45°; when the entire system is subject to impact load, the slider assembly simultaneously slides in the chute 213 of the universal coupling 2, and the fluororubber damping layer 202 is firmly adhered to the Between the slider body 203 and the slider constraining layer 201, due to the adhesion of the slider constraining layer 201, when the fluororubber damping layer 202 is elongated, the fluororubber damping layer 202 is effectively prevented. elongation; on the contrary, when the system vibrates and the fluororubber damping layer 202 is compressed, the slider body 203 effectively prevents the compression of the fluororubber damping layer 202 and prevents the rubber damping layer from elongating and While compressing, shear deformation and stress are generated inside the fluororubber damping layer 202, causing the material to dissipate more energy, increasing the vibration absorption performance of the entire system, and improving the vibration and noise reduction function of the system; when the double damping When the mode non-centering constant angular velocity universal coupling moves independently, the input shaft 1 and the output shaft 4 are driven alternately according to the direction of torque transmission.
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.
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| CN110360237A (en) * | 2018-04-10 | 2019-10-22 | 温庆城 | Core power transmission shafr |
| US11014759B2 (en) | 2018-07-30 | 2021-05-25 | XR Downhole, LLC | Roller ball assembly with superhard elements |
| US11187040B2 (en) | 2018-07-30 | 2021-11-30 | XR Downhole, LLC | Downhole drilling tool with a polycrystalline diamond bearing |
| CN109780078B (en) * | 2019-03-20 | 2024-04-05 | 无锡创明传动工程有限公司 | Novel universal coupling |
| EP3976981A4 (en) * | 2019-05-29 | 2023-01-25 | XR Downhole, LLC | Material treatments for diamond-on-diamond reactive material bearing engagements |
| US12006973B2 (en) | 2020-11-09 | 2024-06-11 | Pi Tech Innovations Llc | Diamond surface bearings for sliding engagement with metal surfaces |
| US11655850B2 (en) | 2020-11-09 | 2023-05-23 | Pi Tech Innovations Llc | Continuous diamond surface bearings for sliding engagement with metal surfaces |
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