CN104120651A - One-way lead core rubber shock insulation support - Google Patents
One-way lead core rubber shock insulation support Download PDFInfo
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- CN104120651A CN104120651A CN201410385289.3A CN201410385289A CN104120651A CN 104120651 A CN104120651 A CN 104120651A CN 201410385289 A CN201410385289 A CN 201410385289A CN 104120651 A CN104120651 A CN 104120651A
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- 230000035939 shock Effects 0.000 title description 2
- 238000009413 insulation Methods 0.000 title 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 32
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 32
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 28
- 239000010935 stainless steel Substances 0.000 claims abstract description 28
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 239000003822 epoxy resin Substances 0.000 claims abstract description 4
- 239000004519 grease Substances 0.000 claims abstract description 4
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 4
- 238000010276 construction Methods 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 claims 5
- 230000007797 corrosion Effects 0.000 claims 5
- 238000000926 separation method Methods 0.000 claims 3
- 238000001994 activation Methods 0.000 claims 1
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 239000011229 interlayer Substances 0.000 abstract description 9
- 238000012946 outsourcing Methods 0.000 abstract description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052710 silicon Inorganic materials 0.000 abstract description 3
- 239000010703 silicon Substances 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 description 11
- 239000010410 layer Substances 0.000 description 11
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000000703 anti-shock Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
本发明公开了一种单向减隔震铅芯橡胶支座，包括夹层钢板、夹层橡胶、外包橡胶、上封板、盖板、铅芯、聚四氟乙烯滑板、不锈钢板、上支座板、下支座板、限位板、上连接板、下连接板、锚固螺栓、侧向不锈钢条和导向滑条；所述铅芯紧密地压入支座预留孔洞，铅芯上设有盖板；聚四氟乙烯滑板与不锈钢板组成支座滑动面，不锈钢板与聚四氟乙烯滑板之间采用硅脂润滑，上封板通过表面涂抹环氧树脂与表面活化处理的聚四氟乙烯滑板粘结，限位板设置在上支座板的各个侧边，允许纵向滑动但限制横向移动。本发明解决了一联桥总长度大或大跨桥梁采用减震支座会约束常规荷载作用下的纵向大变形问题，扩大减隔震支座的应用范围，提高桥梁整体抗震能力。
The invention discloses a one-way shock-absorbing and isolating lead-core rubber bearing, which comprises interlayer steel plate, interlayer rubber, outsourcing rubber, upper sealing plate, cover plate, lead core, polytetrafluoroethylene sliding plate, stainless steel plate and upper supporting plate , lower support plate, limit plate, upper connecting plate, lower connecting plate, anchor bolts, lateral stainless steel strips and guide slides; the lead core is tightly pressed into the reserved hole of the support, and the lead core is provided with a cover Plate; PTFE slide plate and stainless steel plate form the bearing sliding surface, the stainless steel plate and PTFE slide plate are lubricated with silicon grease, and the upper sealing plate is coated with epoxy resin and surface activated PTFE slide plate Bonded, limit plates are provided on each side of the upper support plate, allowing longitudinal sliding but limiting lateral movement. The invention solves the problem that a bridge with a long total length or a long-span bridge adopts a shock-absorbing support to constrain the large longitudinal deformation under conventional loads, expands the application range of the shock-absorbing and isolating support, and improves the overall seismic capacity of the bridge.
Description
技术领域technical field
本发明涉及桥梁的防震、抗震技术领域，属于桥梁工程中一种专用减隔震装置，特别适用于安装在桥梁上部结构与墩台之间，可以减小地震等振动荷载对结构的破坏作用，保护桥梁。The invention relates to the field of anti-shock and anti-seismic technology of bridges, and belongs to a special shock-absorbing and isolating device in bridge engineering, which is especially suitable for being installed between the upper structure of a bridge and the abutment, and can reduce the damage caused by vibration loads such as earthquakes to the structure. Protect the bridge.
背景技术Background technique
地震是一种自然灾害，强烈的地震会给人类带来巨大的灾害，包括人员伤亡和经济损失。从历史上看，我国地震灾害居世界之首，其特点是频率高、震级大、分布广。20世纪我国发生六级以上地震600余次。我国三分之一以上国土、半数以上大中城市位于抗震设防烈度7度及7度以上地区。目前，我国的地震依然非常活跃，自1998年以来已发生10多次7级以上地震和50多次6级以上地震，2003年2月新疆巴楚、伽师的6.8级地震造成直接经济损失13亿元人民币。2008年5月12日四川汶川发生8.0级大地震，造成近10万人的伤亡。Earthquake is a natural disaster, a strong earthquake will bring huge disasters to human beings, including casualties and economic losses. Historically, my country's earthquake disaster ranks first in the world, which is characterized by high frequency, large magnitude and wide distribution. In the 20th century, more than 600 earthquakes of magnitude 6 or above occurred in my country. More than one-third of my country's land and more than half of large and medium-sized cities are located in areas with an earthquake resistance intensity of 7 degrees or above. At present, earthquakes in my country are still very active. Since 1998, there have been more than 10 earthquakes above magnitude 7 and more than 50 earthquakes above magnitude 6. In February 2003, the magnitude 6.8 earthquake in Bachu and Jiashi in Xinjiang caused direct economic losses13 billion yuan. On May 12, 2008, a magnitude 8.0 earthquake occurred in Wenchuan, Sichuan, causing nearly 100,000 casualties.
隔震技术是目前国际上较为有效的工程抗震技术。隔震结构体系通过设置隔震层，将结构分为上部结构、隔震层和下部结构三部分，地震能量经由下部传到隔震层，由隔震层的隔震装置吸收并消耗主要地震能量后，仅有少部分能量传到上部结构。Seismic isolation technology is currently an effective engineering anti-seismic technology in the world. The seismic isolation structure system divides the structure into three parts: the upper structure, the seismic isolation layer and the lower structure by setting the seismic isolation layer. The seismic energy is transmitted to the seismic isolation layer through the lower part, and the seismic isolation device of the seismic isolation layer absorbs and consumes the main seismic energy. Afterwards, only a small amount of energy is transferred to the superstructure.
随着交通事业的飞速发展，高质量、高性能的桥梁支座已成为整个工程的关键施工部位。对桥梁支座而言，不仅要保证工程完工后的静态指标，还要适应桥梁复杂的动态指标变化，如汽车荷载、温度变化、混凝土收缩、徐变以及水流等因素对桥梁的影响，甚至要适应突发性的地震、台风或其他因素造成的剧烈振动。而这一严格的技术指标保证，在某种程度上讲，取决于具有高性能的桥梁支座。其中铅芯橡胶支座是隔震技术中具有代表性的隔震支座之一，它除了能使支座在地震作用下具有良好的耗能减震和复位能力外，在塑性变形循环下还具有很好的抗疲劳性能。聚四氟乙烯滑板支座是利用不锈钢与聚四氟乙烯材料之间相当低的滑动摩擦系数制成，这种支座具有摩擦系数小，水平伸缩位移大的优点，作为桥梁活动支座十分适宜，可使桥梁上部结构变形不受限制。With the rapid development of transportation, high-quality and high-performance bridge bearings have become the key construction parts of the entire project. For bridge bearings, it is not only necessary to ensure the static indicators after the completion of the project, but also to adapt to the complex dynamic indicators of the bridge, such as vehicle loads, temperature changes, concrete shrinkage, creep, and water flow. Adapt to sudden earthquakes, typhoons or severe vibrations caused by other factors. And this strict technical index guarantee, to some extent, depends on the bridge bearing with high performance. Among them, the lead-core rubber bearing is one of the representative seismic isolation bearings in the seismic isolation technology. In addition to enabling the bearing to have good energy dissipation, shock absorption and reset capabilities under the action of an earthquake, it can also be used under plastic deformation cycles. Has very good anti-fatigue properties. The polytetrafluoroethylene slide bearing is made of a relatively low sliding friction coefficient between stainless steel and polytetrafluoroethylene material. This kind of bearing has the advantages of small friction coefficient and large horizontal telescopic displacement. It is very suitable as a bridge movable support , which can make the deformation of the bridge superstructure unrestricted.
发明内容Contents of the invention
本发明的目的在于提供一种单向铅芯橡胶隔震支座，解决一联桥总长度大或大跨桥梁采用减震支座会约束常规荷载作用下的纵向大变形问题，扩大减隔震支座的应用范围，提高桥梁整体抗震能力。The purpose of the present invention is to provide a unidirectional lead rubber shock-absorbing bearing, which solves the problem that the use of shock-absorbing bearings in a bridge with a large total length or a long-span bridge will constrain the large longitudinal deformation under conventional loads, and expands the shock-absorbing and isolating bearing. The application scope of the bearing can improve the overall seismic capacity of the bridge.
本发明采用的技术方案为：一种单向减隔震铅芯橡胶支座，包括夹层钢板、夹层橡胶、外包橡胶、上封板、盖板、铅芯、聚四氟乙烯滑板、不锈钢板、上支座板、下支座板、限位板、上连接板、下连接板、锚固螺栓、侧向不锈钢条和导向滑条；The technical scheme adopted in the present invention is: a one-way shock-absorbing and isolating lead rubber bearing, including interlayer steel plate, interlayer rubber, outsourcing rubber, upper sealing plate, cover plate, lead core, polytetrafluoroethylene slide plate, stainless steel plate, Upper support plate, lower support plate, limit plate, upper connection plate, lower connection plate, anchor bolts, lateral stainless steel strips and guide slides;
所述夹层钢板和夹层橡胶间隔设置，形成中间有预留孔洞的叠层结构，该叠层结构的顶层和底层均为夹层橡胶，叠层结构上面设有上封板，下面设有下支座板，周边设有外包橡胶；所述铅芯紧密地压入所述预留孔洞，铅芯上设有盖板；The interlayer steel plate and the interlayer rubber are arranged at intervals to form a laminated structure with reserved holes in the middle. The top and bottom layers of the laminated structure are both interlayer rubber. The upper layer of the laminated structure is provided with an upper sealing plate, and the lower part is provided with a lower support plate, with outsourcing rubber on the periphery; the lead core is pressed tightly into the reserved hole, and the lead core is provided with a cover plate;
所述聚四氟乙烯滑板与不锈钢板组成支座滑动面；不锈钢板设置于聚四氟乙烯滑板上面，不锈钢板与聚四氟乙烯滑板之间采用硅脂润滑；聚四氟乙烯滑板设置于上封板和盖板的上面，上封板通过表面涂抹环氧树脂与表面活化处理的聚四氟乙烯滑板粘结；The polytetrafluoroethylene slide plate and the stainless steel plate form the bearing sliding surface; the stainless steel plate is set on the polytetrafluoroethylene slide plate, and the stainless steel plate and the polytetrafluoroethylene slide plate are lubricated with silicon grease; the polytetrafluoroethylene slide plate is set on the upper On the top of the sealing plate and the cover plate, the upper sealing plate is bonded to the surface-activated PTFE sliding plate by applying epoxy resin on the surface;
所述不锈钢板上面设有上支座板，上支座板的各个侧边设置有限位板，且仅在纵向预留支座的可滑动间距，允许纵向滑动但限制横向移动，纵向限位板的内侧设有侧向不锈钢条，所述上封板的纵向外侧设有导向滑条；The stainless steel plate is provided with an upper support plate, each side of the upper support plate is provided with a limit plate, and only the slidable spacing of the support is reserved in the longitudinal direction, allowing longitudinal sliding but restricting lateral movement, and the longitudinal limit plate The inner side of the upper sealing plate is provided with a lateral stainless steel strip, and the longitudinal outer side of the upper sealing plate is provided with a guide slider;
所述上支座板上面通过锚固螺栓连接有上连接板，所述下支座板下面通过锚固螺栓连接有下连接板。An upper connection plate is connected to the upper surface of the upper support plate through anchor bolts, and a lower connection plate is connected to the lower surface of the lower support plate through anchor bolts.
作为优选，所述的侧向不锈钢条采用点焊法固定在限位板上。Preferably, the lateral stainless steel strips are fixed on the limiting plate by spot welding.
作为优选，所述的导向滑条采用SF-1三层复合板。As a preference, the guide slider adopts SF-1 three-layer composite board.
本发明的有益效果：Beneficial effects of the present invention:
1、本发明在目前应用广泛的铅芯橡胶支座的上封板与上支座板之间加入聚四氟乙烯滑板和不锈钢板，形成纵向单向滑动面，纵桥向形成活动支座，达到普通滑动支座的功效，而横桥向则形成铅芯橡胶支座。本发明的单向减隔震铅芯橡胶支座构造简单，结构形式合理，不但可以满足纵桥向水平伸缩位移大的特点，而且可以发挥支座横向的减隔震性能，有效地限制上部结构横桥向的内力和位移。1. In the present invention, a polytetrafluoroethylene sliding plate and a stainless steel plate are added between the upper sealing plate and the upper bearing plate of the widely used lead rubber bearing to form a longitudinal one-way sliding surface, and a movable bearing is formed in the longitudinal bridge direction. It achieves the effect of ordinary sliding bearings, while the cross-bridge direction forms lead rubber bearings. The one-way shock-absorbing and isolating lead rubber bearing of the present invention has a simple structure and a reasonable structural form, not only can meet the characteristics of large horizontal expansion and contraction displacement of the longitudinal bridge, but also can exert the horizontal shock-absorbing and isolating performance of the support, effectively restricting the superstructure Internal forces and displacements in the transverse bridge direction.
2、当纵桥向联跨较长时，由于铅芯橡胶支座具有较高的初始刚度，会约束主梁在正常使用过程中的纵向变形，因此《叠层橡胶支座隔震技术规程》要求，采用减隔震支座的桥梁联长不宜超过200米。而本发明的使用可以增加桥梁一联的联长，有效解决了现有铅芯橡胶支座的不足。2. When the longitudinal span of the longitudinal bridge is long, due to the high initial stiffness of the lead rubber bearing, it will restrain the longitudinal deformation of the main girder during normal use. It is required that the length of bridges using shock-absorbing and isolating bearings should not exceed 200 meters. And the use of the present invention can increase the joint length of the first joint of the bridge, effectively solving the deficiency of the existing lead rubber bearing.
3、本发明在实际工程设计中，可以通过调整支座的结构形式，例如采用圆形、方形、单铅芯、多铅芯等多种形式制作出不同初始刚度等力学性能参数的单向减隔震铅芯橡胶支座。3. In the actual engineering design of the present invention, by adjusting the structural form of the support, for example, adopting various forms such as circular, square, single lead core, and multiple lead cores, one-way reducing bearings with different initial stiffness and other mechanical performance parameters can be produced. Vibration-isolated lead rubber bearings.
4、本发明既可以应用于一联桥梁较长的中小跨径桥梁，又可以配合其他抗震措施应用于大跨桥梁，具有非常广泛的应用对象。4. The present invention can not only be applied to small and medium-span bridges with a long bridge, but also can be applied to long-span bridges in conjunction with other anti-seismic measures, and has a very wide range of application objects.
5、本发明的应用可以通过增加桥联一联的联长来减少伸缩缝的数量，节约造价；并且该支座的总体造价与现有的铅芯橡胶支座造价基本相当。5. The application of the present invention can reduce the number of expansion joints and save the cost by increasing the joint length of the bridge joints; and the overall cost of the support is basically equivalent to the cost of the existing lead rubber support.
综上所述，本发明的单向减隔震铅芯橡胶支座从应用范围及造价等方面均具有明显优势，具有非常好的应用前景。To sum up, the one-way shock-absorbing and isolating lead rubber bearing of the present invention has obvious advantages in terms of application range and cost, and has a very good application prospect.
附图说明Description of drawings
图1是本发明的单向减隔震铅芯橡胶支座的结构示意图。Fig. 1 is a schematic structural view of the one-way shock-absorbing and isolating lead rubber bearing of the present invention.
图2是本发明的单向减隔震铅芯橡胶支座的俯视示意图。Fig. 2 is a schematic top view of the one-way shock-absorbing and isolating lead rubber bearing of the present invention.
图中：1—夹层钢板；2—夹层橡胶；3—外包橡胶；4—上封板；5—盖板；6—铅芯；7—聚四氟乙烯滑板；8—不锈钢板；9—上支座板；10—下支座板；11—限位板；12—上连接板；13—下连接板；14—锚固螺栓；15—侧向不锈钢条；16—导向滑条。In the figure: 1—interlayer steel plate; 2—interlayer rubber; 3—outsourcing rubber; 4—upper sealing plate; 5—cover plate; 6—lead core; 7—PTFE slide plate; 8—stainless steel plate; 9—upper 10—lower support plate; 11—limiting plate; 12—upper connecting plate; 13—lower connecting plate; 14—anchor bolt; 15—lateral stainless steel bar; 16—guiding slide bar.
具体实施方式Detailed ways
下面结合附图和具体实施方式对本发明做进一步说明。The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
如图1、2所示，一种单向减隔震铅芯橡胶支座，包括夹层钢板1，夹层橡胶2、外包橡胶3、上封板4、盖板5、铅芯6、聚四氟乙烯滑板7、不锈钢板8、上支座板9、下支座板10、限位板11、上连接板12、下连接板13、锚固螺栓14、侧向不锈钢条15、导向滑条16，所述夹层钢板1和夹层橡胶2间隔设置，形成中间有预留孔洞的叠层结构，该叠层结构的顶层和底层均为夹层橡胶2，叠层结构上面设有上封板4，下面设有下支座板10，周边设有外包橡胶3；所述铅芯6紧密地压入所述预留孔洞，铅芯6上设有盖板5；As shown in Figures 1 and 2, a one-way shock-absorbing and isolating lead rubber bearing includes sandwich steel plate 1, sandwich rubber 2, outsourcing rubber 3, upper sealing plate 4, cover plate 5, lead core 6, polytetrafluoroethylene Vinyl slide plate 7, stainless steel plate 8, upper support plate 9, lower support plate 10, limit plate 11, upper connecting plate 12, lower connecting plate 13, anchor bolt 14, lateral stainless steel bar 15, guide slide bar 16, The sandwich steel plate 1 and the sandwich rubber 2 are arranged at intervals to form a laminated structure with reserved holes in the middle. The top and bottom layers of the laminated structure are both laminated rubber 2. The upper sealing plate 4 is arranged on the laminated structure, and the lower layer is provided with There is a lower support plate 10, and an outsourcing rubber 3 is provided around; the lead core 6 is tightly pressed into the reserved hole, and a cover plate 5 is provided on the lead core 6;
所述聚四氟乙烯滑板7与不锈钢板8组成支座滑动面；不锈钢板8设置于聚四氟乙烯滑板7上面，不锈钢板8与聚四氟乙烯滑板7之间采用硅脂润滑；聚四氟乙烯滑板7设置于上封板4和盖板5的上面，上封板4通过表面擦净后均匀涂抹一薄层环氧树脂与表面活化处理的聚四氟乙烯滑板7粘结；The polytetrafluoroethylene slide plate 7 and the stainless steel plate 8 form a bearing sliding surface; the stainless steel plate 8 is arranged on the polytetrafluoroethylene slide plate 7, and silicon grease is used for lubrication between the stainless steel plate 8 and the polytetrafluoroethylene slide plate 7; Vinyl fluoride sliding plate 7 is arranged on the top of upper sealing plate 4 and cover plate 5, upper sealing plate 4 is evenly coated with a thin layer of epoxy resin after the surface is wiped clean, and bonded with the surface-activated polytetrafluoroethylene sliding plate 7;
所述不锈钢板8上面设有上支座板9，上支座板9的各个侧边设置有限位板11，且仅在纵向预留支座的可滑动间距，允许纵向滑动但限制横向移动，纵向限位板11的内侧设有侧向不锈钢条15，所述上封板4的纵向外侧设有导向滑条16；The stainless steel plate 8 is provided with an upper support plate 9, each side of the upper support plate 9 is provided with a limit plate 11, and only the slidable spacing of the support is reserved in the longitudinal direction, allowing longitudinal sliding but limiting lateral movement, The inner side of the longitudinal limiting plate 11 is provided with a lateral stainless steel strip 15, and the longitudinal outer side of the upper sealing plate 4 is provided with a guide slide bar 16;
所述上支座板9上面通过锚固螺栓14连接有上连接板12，所述下支座板10下面通过锚固螺栓14连接有下连接板13。The upper support plate 9 is connected with an upper connection plate 12 through anchor bolts 14 , and the lower support plate 10 is connected with a lower connection plate 13 through anchor bolts 14 .
所述的侧向不锈钢条15采用点焊法固定在限位板11上。所述的导向滑条16应采用SF-1三层复合板。The lateral stainless steel bar 15 is fixed on the limiting plate 11 by spot welding. The guide slide 16 should adopt SF-1 three-layer composite board.
本发明在原有的铅芯橡胶隔震支座的上封板与上支座板之间加入聚四氟乙烯滑板和不锈钢板，形成纵向单向滑动面，纵桥向形成活动支座，达到普通滑动支座的功效，而横桥向则形成铅芯橡胶支座，这种单向铅芯橡胶隔震支座不但可以满足纵桥向水平伸缩位移大的特点，而且可以发挥支座横向的减隔震性能，有效地限制上部结构横桥向的内力和位移。In the present invention, a polytetrafluoroethylene sliding plate and a stainless steel plate are added between the upper sealing plate and the upper bearing plate of the original lead-core rubber shock-absorbing bearing to form a longitudinal one-way sliding surface, and a movable bearing is formed in the longitudinal bridge direction to achieve common The effect of the sliding bearing, while the horizontal bridge direction forms a lead rubber bearing. This kind of unidirectional lead rubber vibration isolation bearing can not only meet the characteristics of large horizontal expansion and displacement in the longitudinal bridge direction, but also play a role in the horizontal reduction of the bearing. The seismic isolation performance can effectively limit the internal force and displacement of the superstructure in the transverse bridge direction.
应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。本实施例中未明确的各组成部分均可用现有技术加以实现。It should be pointed out that those skilled in the art can make some improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. All components that are not specified in this embodiment can be realized by existing technologies.
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| CN111625911A (en) * | 2020-06-04 | 2020-09-04 | 中国科学院长春光学精密机械与物理研究所 | A Modeling Method for Simulating Screw Connections |
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Application publication date: 20141029 |