CN103821863B - A kind of adjustable pendulum-type multidimensional low frequency historical relic damping device - Google Patents
A kind of adjustable pendulum-type multidimensional low frequency historical relic damping device Download PDFInfo
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Abstract
本发明涉及一种可调摆式低频文物减震装置,包括上连杆、钢化玻璃箱、锚固螺栓、可调式配重块、下连杆、碟形弹簧、外展柜,其特征在于:所述上连杆上端与所述外展柜铰接,所述上连杆下端与所述钢化玻璃箱铰接,所述钢化玻璃箱底部用所述锚固螺栓固定所述可调式配重块,所述下连杆上端与可调配重块铰接,所述下连杆下端与所述碟形弹簧铰接,所述外展柜限制所述碟形弹簧水平位移。发生地震时,可调摆式文物低频减震装置以很低的频率摆动,达到良好的隔震作用。
The invention relates to an adjustable pendulum-type low-frequency cultural relics damping device, which includes an upper connecting rod, a tempered glass box, anchor bolts, an adjustable counterweight, a lower connecting rod, a disc spring, and an outer display cabinet, and is characterized in that: The upper end of the upper link is hinged with the exhibition cabinet, the lower end of the upper link is hinged with the tempered glass box, the bottom of the tempered glass box is fixed with the adjustable counterweight by the anchor bolt, and the lower link is The upper end is hinged with the adjustable counterweight, the lower end of the lower link is hinged with the disc spring, and the outer display cabinet limits the horizontal displacement of the disc spring. When an earthquake occurs, the adjustable pendulum low-frequency damping device for cultural relics swings at a very low frequency to achieve a good shock isolation effect.
Description
技术领域technical field
本发明涉及一种文物减隔震装置,属于可移动文物的安全防护及动力分析领域。The invention relates to a cultural relic anti-shock isolation device, which belongs to the field of safety protection and dynamic analysis of movable cultural relics.
背景技术Background technique
可移动文物是世界文化遗产的重要组成部分,具有极其重要的文化、历史价值,保护意义重大。对这些文物的保护,不仅有防火、防盗要求,还应有防震要求。大量震害表明,浮放文物在地震烈度为3~4度时,就有可能产生严重破坏。由于地震的不可预见及巨大的破坏性,使得对这些文物采取及时有效的防震措施迫在眉睫。Movable cultural relics are an important part of world cultural heritage, with extremely important cultural and historical value, and protection is of great significance. The protection of these cultural relics requires not only fire protection and anti-theft requirements, but also earthquake resistance requirements. A large number of earthquake damage shows that floating cultural relics may cause serious damage when the seismic intensity is 3 to 4 degrees. Due to the unpredictability and great destructiveness of the earthquake, it is extremely urgent to take timely and effective anti-seismic measures for these cultural relics.
从馆藏浮放文物隔震装置的研发现状来看,国内方面在此方面严重不足,而国外方面如日本、美国、意大利等国家已普遍推广使用不同类型文物隔震装置以实现基于先进技术的文物防震保护。滚轮式、滚轴式、滚珠式、滑块式、摩擦摆式等不同类型隔震装置得以研发,空气弹簧、恒力弹簧、磁石、形状记忆合金等不同类型隔震材料得以应用,使得文物隔震装置的开发前景广阔。然而从文物隔震装置的隔震效果来看,实现构造简单、小容积、低传导比(文物的响应加速度峰值与输入地震波加速度峰值之比)及避免竖向摇摆,并保证隔震装置的可靠性、耐久性仍是一个重要的课题。Judging from the status quo of the research and development of seismic isolation devices for floating cultural relics in the collection, there is a serious shortage in this area in China, while foreign countries such as Japan, the United States, Italy and other countries have generally promoted the use of different types of seismic isolation devices for cultural relics to realize cultural relics based on advanced technology. Shock protection. Different types of vibration isolation devices such as roller type, roller type, ball type, slider type, and friction pendulum type have been developed, and different types of vibration isolation materials such as air springs, constant force springs, magnets, and shape memory alloys have been applied, making cultural relics isolated The development prospect of the seismic device is broad. However, from the perspective of the seismic isolation effect of the cultural relics isolation device, it is necessary to achieve a simple structure, small volume, low conduction ratio (the ratio of the peak response acceleration of the cultural relic to the peak acceleration of the input seismic wave), avoid vertical swing, and ensure the reliability of the isolation device. Performance and durability are still important issues.
现有的文物隔震装置大都以水平隔震为主,而竖向地震分量往往占重要地位。从水平恢复力部件角度讲,传统的弹簧需要竖向双层设置方可实现水平任意向隔震。而基于重力恢复力的曲面滚轮或滚珠装置则很容易发生由于水平地震力过大而造成部件飞出的问题。从竖向恢复力部件角度讲,传统的弹簧由于静挠度过大而容易产生竖向弯曲问题,且部件构造复杂,占据竖向空间较大。因此,需要研发制造简便、机理明确、效果明显的多维文物减震装置。Most of the existing seismic isolation devices for cultural relics are mainly horizontal isolation, while the vertical seismic component often plays an important role. From the perspective of horizontal restoring force components, traditional springs need to be vertically double-layered to achieve horizontal vibration isolation in any direction. However, the surface roller or ball device based on the gravity restoring force is prone to the problem of parts flying out due to excessive horizontal seismic force. From the perspective of vertical restoring force components, traditional springs are prone to vertical bending problems due to excessive static deflection, and the components are complex in structure and occupy a large vertical space. Therefore, it is necessary to develop and manufacture a multi-dimensional cultural relic shock absorbing device that is simple to manufacture, has a clear mechanism, and has obvious effects.
发明内容Contents of the invention
现有的文物隔震装置大都以水平隔震为主,而竖向地震分量往往占重要地位。从水平恢复力部件角度讲,传统的弹簧需要竖向双层设置方可实现水平任意向隔震。而基于重力恢复力的曲面滚轮或滚珠装置则很容易发生由于水平地震力过大而造成部件飞出的问题。从竖向恢复力部件角度讲,传统的弹簧由于静挠度过大而容易产生竖向弯曲问题,且部件构造复杂,占据竖向空间较大。基于此,本发明试图通过可调摆式文物低频减震装置的研发解决上述问题。Most of the existing seismic isolation devices for cultural relics are mainly horizontal isolation, while the vertical seismic component often plays an important role. From the perspective of horizontal restoring force components, traditional springs need to be vertically double-layered to achieve horizontal vibration isolation in any direction. However, the surface roller or ball device based on the gravity restoring force is prone to the problem of parts flying out due to excessive horizontal seismic force. From the perspective of vertical restoring force components, traditional springs are prone to vertical bending problems due to excessive static deflection, and the components are complex in structure and occupy a large vertical space. Based on this, the present invention attempts to solve the above-mentioned problems through the research and development of an adjustable pendulum-type cultural relic low-frequency damping device.
为实现上述目的,本发明采取的技术方案为一种可调摆式文物低频减震装置,包括上连杆、钢化玻璃箱、锚固螺栓、可调式配重块、下连杆、碟形弹簧、外展柜;其中,所述上连杆一端与所述外展柜铰接,所述上连杆另一端与所述钢化玻璃箱铰接;所述钢化玻璃箱放置文物处用所述锚固螺栓固定可调式配重块;所述下连杆一端与可调配重块铰接,下连杆另一端与所述碟形弹簧铰接;所述外展柜限制所述碟形弹簧水平位移。In order to achieve the above purpose, the technical solution adopted by the present invention is an adjustable pendulum-type cultural relics low-frequency shock absorber, which includes an upper connecting rod, a tempered glass box, anchor bolts, an adjustable counterweight, a lower connecting rod, a disc spring, Outer display cabinet; wherein, one end of the upper connecting rod is hinged with the outer display cabinet, and the other end of the upper connecting rod is hinged with the tempered glass box; the place where the tempered glass box is placed for cultural relics is fixed with the anchor bolt A heavy block; one end of the lower connecting rod is hinged with the adjustable counterweight, and the other end of the lower connecting rod is hinged with the disc spring; the outer display cabinet limits the horizontal displacement of the disc spring.
所述上连杆与下连杆,选用轻质且强度高的材料,如金属基复合材料;上连杆长度与下连杆长度之比大于2。The upper connecting rod and the lower connecting rod are made of light and high-strength materials, such as metal matrix composite materials; the ratio of the length of the upper connecting rod to the length of the lower connecting rod is greater than 2.
所述可调式配重块,材料选用铅合金、锌合金、铸铁,所述可调式配重块长宽与所述钢化玻璃箱相同,所述可调式配重块用所述锚固螺栓固定于所述钢化玻璃箱底部,可以通过改变所述可调式配重块数量来改变质量大小。The material of the adjustable counterweight is lead alloy, zinc alloy and cast iron, the length and width of the adjustable counterweight are the same as the tempered glass box, and the adjustable counterweight is fixed to the The bottom of the tempered glass box can change the quality by changing the quantity of the adjustable counterweight.
所述钢化玻璃箱使用全钢化玻璃,所述钢化玻璃箱内置摩擦垫层。The tempered glass box uses fully tempered glass, and the tempered glass box has a built-in friction cushion.
所述碟形弹簧可通过改变簧片数量来改变刚度。The stiffness of the disc spring can be changed by changing the number of reeds.
当隔震文物柜受到地震作用时,碟形弹簧受到拉伸和压缩,来抵抗竖直方向的地震作用,钢化玻璃箱与上连杆和下连杆铰接,并以低频率在水平方向摆动,抵抗水平方向的地震作用,进而达到隔震的目的。When the shock-isolated cultural relic cabinet is subjected to an earthquake, the disc spring is stretched and compressed to resist the earthquake in the vertical direction. The tempered glass box is hinged with the upper link and the lower link, and swings in the horizontal direction at a low frequency. Resist the earthquake action in the horizontal direction, and then achieve the purpose of earthquake isolation.
本发明采用单摆和倒摆并联隔振系统原理,钢化玻璃箱和可调质量块质量和为m,钢化玻璃箱上端与长为L1上连杆铰接,构成单摆,称之为正摆;可调配重块下端通过与一长为L2的下连杆铰接,下连杆下端与刚度为Ks的碟形弹簧铰接,构成倒摆。单摆与倒摆通过钢化玻璃箱和可调配重块并联在一起,杆长比Lr=L1/L2,碟形弹簧初始压缩量为ΔL,系统处于平衡位置时,系统刚度为:
与现有技术相比,本发明具有如下有益效果。Compared with the prior art, the present invention has the following beneficial effects.
本发明采用单摆和倒摆并联隔振系统原理,整个装置制造简便、机理明确、抗震效果明显,对文物起到很好的保护作用。The invention adopts the principle of the parallel vibration isolation system of the single pendulum and the inverted pendulum, and the whole device is easy to manufacture, has a clear mechanism and obvious anti-seismic effect, and plays a very good role in protecting cultural relics.
附图说明Description of drawings
图1是可调摆式文物低频减震装置示意图。Figure 1 is a schematic diagram of an adjustable pendulum cultural relic low-frequency damping device.
图2是可调摆式文物低频减震装置三维图。Fig. 2 is a three-dimensional diagram of the adjustable pendulum cultural relics low-frequency damping device.
图3是可调摆式文物低频减震装置侧视图。Fig. 3 is a side view of the adjustable pendulum cultural relic low-frequency damping device.
图4是可调配重块平面图。Figure 4 is a plan view of the adjustable counterweight.
图5是碟形弹簧侧视图。Figure 5 is a side view of the Belleville spring.
图中:1、上连杆,2、钢化玻璃箱,3、可调式配重块,4、锚固螺栓,5、下连杆,6、碟形弹簧,7、外展柜。In the figure: 1, upper connecting rod, 2, tempered glass box, 3, adjustable counterweight, 4, anchor bolt, 5, lower connecting rod, 6, disc spring, 7, outer display cabinet.
具体实施方式Detailed ways
如图1所示,上连杆1一端与所述外展柜7铰接,上连杆1另一端与钢化玻璃箱2铰接;钢化玻璃箱2底部用锚固螺栓4固定可调式配重块3,下连杆5一端与可调配重块3铰接,下连杆5另一端与碟形弹簧6铰接,外展柜7限制碟形弹簧6水平位移。As shown in Figure 1, one end of the upper connecting rod 1 is hinged to the exhibition cabinet 7, and the other end of the upper connecting rod 1 is hinged to the tempered glass box 2; One end of the connecting rod 5 is hinged with the adjustable counterweight 3, the other end of the lower connecting rod 5 is hinged with the disc spring 6, and the outer display cabinet 7 limits the horizontal displacement of the disc spring 6.
上连杆1与下连杆5采用金属基复合材料,保证轻质高强特性。The upper connecting rod 1 and the lower connecting rod 5 are made of metal matrix composite material to ensure light weight and high strength.
实施例Example
上连杆1长度为1.5m,下连杆5长度为0.7m,保证上连杆1长度与下连杆5长度之比大于2。可调式配重块3,材料使用锌合金,可调式配重块3长70cm、宽50cm、厚度1cm、数量2个、质量为30kg可调式配重块3用4个锚固螺栓固定于钢化玻璃箱2底部。钢化玻璃箱2长70cm、宽50cm、高80cm,使用全钢化玻璃,钢化玻璃箱2内置摩擦垫层,保证文物与玻璃箱之间有足够摩擦力。碟形弹簧6刚度为20N/mm。The length of the upper connecting rod 1 is 1.5m, and the length of the lower connecting rod 5 is 0.7m, so that the ratio of the length of the upper connecting rod 1 to the length of the lower connecting rod 5 is greater than 2. Adjustable counterweight 3, made of zinc alloy, adjustable counterweight 3 length 70cm, width 50cm, thickness 1cm, quantity 2, quality 30kg Adjustable counterweight 3 is fixed to the tempered glass box with 4 anchor bolts 2 bottom. The toughened glass box 2 is 70cm long, 50cm wide, and 80cm high. It uses fully tempered glass. The tempered glass box 2 has a built-in friction cushion to ensure sufficient friction between the cultural relics and the glass box. Disc spring 6 stiffness is 20N/mm.
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CN101033628A (en) * | 2007-01-05 | 2007-09-12 | 北京工业大学 | Speed regulation type tuning mass damper |
CN201782395U (en) * | 2010-09-21 | 2011-04-06 | 华中科技大学 | Automatic relic-protecting device |
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Effective date of registration: 20170706 Address after: 510000 Guangdong Province, Guangzhou high tech Industrial Development Zone, No. 233 science road 231 floor B1B2 building one layer, two layer, three layer, four layer Patentee after: BOAO ZONGHENG NETWORK TECHNOLOGY Co.,Ltd. Address before: 100124 Chaoyang District, Beijing Ping Park, No. 100 Patentee before: Beijing University of Technology |
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Inventor after: He Haoxiang Inventor after: Sun Yue Inventor after: Li Ruifeng Inventor after: Chen Kui Inventor after: Lv Yongwei Inventor before: He Haoxiang Inventor before: Li Ruifeng Inventor before: Chen Kui Inventor before: Lv Yongwei |
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Effective date of registration: 20170710 Address after: 230009 experimentation area, scientific and technological innovation, public service and application technology research and development center, No. 860, Wangjiang West Road, Hefei hi tech Zone, Anhui, 1210, China Patentee after: ANHUI ZHONGBO INTELLIGENT TECHNOLOGY Co.,Ltd. Address before: 510000 Guangdong Province, Guangzhou high tech Industrial Development Zone, No. 233 science road 231 floor B1B2 building one layer, two layer, three layer, four layer Patentee before: BOAO ZONGHENG NETWORK TECHNOLOGY Co.,Ltd. |
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Granted publication date: 20151028 |