CN204025519U - Motor particle damping rubber vibration isolator - Google Patents
Motor particle damping rubber vibration isolator Download PDFInfo
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- CN204025519U CN204025519U CN201420486801.9U CN201420486801U CN204025519U CN 204025519 U CN204025519 U CN 204025519U CN 201420486801 U CN201420486801 U CN 201420486801U CN 204025519 U CN204025519 U CN 204025519U
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- 238000013016 damping Methods 0.000 title claims abstract description 154
- 229920001971 elastomer Polymers 0.000 title claims abstract description 74
- 239000002245 particle Substances 0.000 title claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 58
- 238000002955 isolation Methods 0.000 claims abstract description 42
- 238000004073 vulcanization Methods 0.000 claims abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 244000043261 Hevea brasiliensis Species 0.000 claims description 4
- 229920005549 butyl rubber Polymers 0.000 claims description 4
- 229920003052 natural elastomer Polymers 0.000 claims description 4
- 229920001194 natural rubber Polymers 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229920000459 Nitrile rubber Polymers 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 11
- 238000006073 displacement reaction Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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Abstract
Description
技术领域 technical field
本实用新型属于发动机隔振器技术领域。尤其涉及一种发动机用颗粒阻尼橡胶隔振器。 The utility model belongs to the technical field of engine vibration isolators. In particular, it relates to a particle damping rubber vibration isolator for an engine.
背景技术 Background technique
目前国内外汽车发动机悬置系统主要采用普通橡胶隔振器和液阻型橡胶隔振器，隔离发动机工作过程中引起的振动，包括：控制发动机怠速时较大幅度的低频抖动；隔离高频振动以便降低车室内的高频振动和噪声；限制发动机在地面冲击工况下的过大位移，防止发动机与周边部件发生碰撞损坏。要满足这些要求，理想的隔振器必须具有低频高动刚度与大阻尼的动态特性和高频低动刚度和小阻尼的动态特性。 At present, domestic and foreign automobile engine mount systems mainly use ordinary rubber vibration isolators and liquid resistance rubber vibration isolators to isolate the vibration caused by the engine's working process, including: controlling the relatively large low-frequency vibration when the engine is idling; isolating high-frequency vibration In order to reduce the high-frequency vibration and noise in the cabin; limit the excessive displacement of the engine under ground impact conditions, and prevent the engine from colliding with surrounding components. To meet these requirements, an ideal vibration isolator must have the dynamic characteristics of high dynamic stiffness and large damping at low frequencies and the dynamic characteristics of low dynamic stiffness and small damping at high frequencies.
普通橡胶隔振器利用橡胶良好的弹性和橡胶变形时橡胶分子间的内摩擦阻尼特性，起到减振和隔振的作用。普通橡胶隔振器虽然结构简单和成本低，但由于刚度偏大、阻尼不足和高频动态硬化的缺点，难以满足汽车发动机在较宽频率范围内对发动机隔振的要求。 Ordinary rubber vibration isolators use the good elasticity of rubber and the internal friction damping characteristics between rubber molecules when the rubber deforms to play the role of vibration reduction and vibration isolation. Although ordinary rubber vibration isolators have simple structure and low cost, due to the shortcomings of high stiffness, insufficient damping and high-frequency dynamic hardening, it is difficult to meet the requirements of automotive engines for engine vibration isolation in a wide frequency range. the
液阻型橡胶隔振器常见的有节流孔型、惯性通道型、惯性通道—固定解耦膜型、惯性通道—活动解耦膜型多种结构形式。液阻型橡胶隔振器在低频域具有大阻尼、高动刚度特性，既可有效地隔离衰减在发动机怠速和汽车低速行驶在不平路面上时动力总成的稳态振动，又可很好地控制、衰减在汽车起步加速、转弯、制动及发动机启动、停机等非稳态工况下动力总成的大位移冲击运动和非稳态振动。液阻型橡胶隔振器在高频域具有小阻尼、低动刚度的特性，可在较宽频带内克服橡胶主弹簧的动态硬化效应，可显著扩大有效隔振频率范围，因此较好地隔离发动机的高频振动、降低汽车在高速行驶中的车内振动和噪声、改善汽车的乘坐舒适性。但是，液阻型橡胶隔振器结构复杂、设计制造困难和成本较高，主要应用在乘用车上。 Liquid-resistance rubber vibration isolators are commonly used in various structural forms such as orifice type, inertial channel type, inertial channel-fixed decoupling membrane type, and inertial channel-movable decoupling membrane type. The liquid resistance type rubber vibration isolator has the characteristics of large damping and high dynamic stiffness in the low frequency range, which can effectively isolate and attenuate the steady state vibration of the powertrain when the engine is idling and the car is running on uneven roads at low speeds, and can also be well Control and attenuate the large-displacement impact motion and unsteady vibration of the powertrain under unsteady conditions such as acceleration, turning, braking, engine start, and shutdown. The liquid resistance type rubber vibration isolator has the characteristics of small damping and low dynamic stiffness in the high frequency range, which can overcome the dynamic hardening effect of the rubber main spring in a wide frequency band, and can significantly expand the effective frequency range of vibration isolation, so it can better isolate The high-frequency vibration of the engine reduces the vibration and noise inside the car during high-speed driving, and improves the ride comfort of the car. However, the liquid resistance type rubber vibration isolator has complex structure, difficult design and manufacture, and high cost, and is mainly used in passenger cars.
发明内容 Contents of the invention
本实用新型旨在克服现有技术缺陷，目的是提供一种结构简单可靠、制造方便和成本低的发动机用颗粒阻尼橡胶隔振器，该装置既具有低频高动刚度与大阻尼的动态特性又具有高频低动刚度与小阻尼的动态特性。 The utility model aims to overcome the defects of the prior art, and the purpose is to provide a particle damping rubber vibration isolator for engines with simple and reliable structure, convenient manufacture and low cost. The device has the dynamic characteristics of low frequency, high dynamic stiffness and large damping It has the dynamic characteristics of high frequency, low dynamic stiffness and small damping.
为实现上述目的，本实用新型所采用的技术方案是：所述颗粒阻尼橡胶隔振器由上连接螺栓、上连接板、隔振橡胶、下连接板、下连接螺栓、颗粒阻尼材料和阻尼杆组成。隔振橡胶的上端面和下端面与对应的上连接板和下连接板硫化粘接，下连接板的下平面固定有下连接螺栓，上连接板的上平面固定有上连接螺栓，上连接板的下平面固定有阻尼杆。上连接螺栓、上连接板、隔振橡胶、下连接板、下连接螺栓 和阻尼杆同轴心连接。 In order to achieve the above object, the technical solution adopted in the utility model is: the particle damping rubber vibration isolator is composed of an upper connecting bolt, an upper connecting plate, a vibration isolation rubber, a lower connecting plate, a lower connecting bolt, a granular damping material and a damping rod composition. The upper and lower end faces of the vibration-isolation rubber are vulcanized and bonded to the corresponding upper and lower connecting plates, the lower plane of the lower connecting plate is fixed with lower connecting bolts, the upper plane of the upper connecting plate is fixed with upper connecting bolts, and the upper connecting plate The lower plane is fixed with a damping rod. The upper connecting bolt, the upper connecting plate, the vibration isolation rubber, the lower connecting plate, the lower connecting bolt and the damping rod are concentrically connected.
隔振橡胶为空心柱体，空心柱体的空心部分与上连接板和下连接板间构成封闭的阻尼腔，所述阻尼腔内装有颗粒阻尼材料，颗粒阻尼材料的装入量为阻尼腔容积的50~85%。 The vibration isolation rubber is a hollow cylinder, and the hollow part of the hollow cylinder forms a closed damping chamber with the upper connecting plate and the lower connecting plate. The damping chamber is filled with granular damping material, and the amount of granular damping material loaded is the volume of the damping chamber. 50~85% of that.
所述隔振橡胶的材质是天然橡胶、丁腈橡胶、氯丁橡胶和丁基橡胶中的一种。 The material of the vibration-isolation rubber is one of natural rubber, nitrile rubber, neoprene and butyl rubber.
所述上连接板的形状为圆形、或为椭圆形、或为多边形。上连接板的形状与下连接板的形状相同，上连接板形状与所连接的隔振橡胶的截面外形相似。 The shape of the upper connecting plate is circular, or oval, or polygonal. The shape of the upper connecting plate is the same as that of the lower connecting plate, and the shape of the upper connecting plate is similar to the section shape of the connected vibration-isolation rubber.
所述阻尼杆的长度为隔振橡胶高度的0.6~0.8倍，阻尼杆自由端的圆锥角为30~100°。 The length of the damping rod is 0.6-0.8 times the height of the vibration-isolation rubber, and the cone angle of the free end of the damping rod is 30-100°.
所述颗粒阻尼材料的形状为球体，直径为0.05～5mm。颗粒阻尼材料的材质为钢、铅、铜中的一种，或为二氧化硅、云母、陶瓷中的一种。 The shape of the granular damping material is a sphere with a diameter of 0.05-5mm. The material of the granular damping material is one of steel, lead, and copper, or one of silicon dioxide, mica, and ceramics.
所述空心柱体为开有中心孔的圆柱体、或为开有中心孔的椭圆柱体或为开有中心孔的棱柱体，所述中心孔或为圆形孔、或为椭圆形孔、或为多边形孔。 The hollow cylinder is a cylinder with a central hole, or an elliptical cylinder with a central hole, or a prism with a central hole, and the central hole is either a circular hole or an elliptical hole, Or for polygonal holes.
由于采用上述技术方案，本实用新型与现有的技术方案相比具有如下积极效果： Due to the above-mentioned technical solution, the utility model has the following positive effects compared with the existing technical solution:
本实用新型在传统的橡胶隔振器中内置一种颗粒阻尼器而成。与发动机连接的上连接螺栓、与车架连接的下连接螺栓、隔振橡胶、上连接板和下连接板组成的橡胶隔振器保证了悬置总成的安装要求，提供支承发动机所需的静刚度。 The utility model is formed by a particle damper built in a traditional rubber vibration isolator. The rubber vibration isolator composed of the upper connecting bolt connected with the engine, the lower connecting bolt connected with the frame, the vibration-isolating rubber, the upper connecting plate and the lower connecting plate ensures the installation requirements of the suspension assembly and provides the required support for the engine. static stiffness.
本实用新型中的隔振橡胶分别与上连接板和下连接板硫化粘接在一起。隔振橡胶设有中心孔，该中心孔与上连接板和下连接板间的封闭容积构成阻尼腔，在阻尼腔中装入颗粒阻尼材料，阻尼杆杆体的大半部分位于阻尼腔内的颗粒阻尼材料中。在发动机振动过程中，阻尼腔的容积发生变化，产生附加的体积刚度，阻尼杆与颗粒阻尼材料之间的摩擦以及颗粒阻尼材料之间的碰撞与摩擦产生所需的阻尼。故本实用新型结构简单可靠、制造方便和成本低。 The vibration-isolation rubber in the utility model is vulcanized and bonded with the upper connecting plate and the lower connecting plate respectively. The vibration isolation rubber is provided with a central hole, and the closed volume between the central hole and the upper connecting plate and the lower connecting plate constitutes a damping chamber, and the damping chamber is filled with granular damping materials, and most of the damping rod body is located in the damping chamber. in the material. During the vibration process of the engine, the volume of the damping chamber changes, resulting in additional bulk stiffness, the friction between the damping rod and the granular damping material, and the collision and friction between the granular damping materials produce the required damping. Therefore, the utility model has the advantages of simple and reliable structure, convenient manufacture and low cost.
当发动机在低频、大位移振动状态时，本实用新型的阻尼腔的压力升高，产生附加的体积刚度。同时，阻尼杆与颗粒阻尼材料之间的摩擦以及颗粒阻尼材料之间的碰撞与摩擦产生阻尼作用，本实用新型呈现大阻尼、高动刚度的动态性能。随着发动机振动频率增大和振幅减小，这种阻尼腔的体积刚度效应与颗粒阻尼材料的阻尼作用逐渐减小。发动机在高频和小位移振动状态时，阻尼腔的体积刚度效应与颗粒阻尼材料的阻尼作用消失，本实用新型呈现小阻尼和低动刚度的动态性能。故能在较宽的频率范围内实现隔振、减振和降噪。 When the engine is in the vibration state of low frequency and large displacement, the pressure of the damping cavity of the utility model rises to generate additional volume rigidity. At the same time, the friction between the damping rod and the granular damping material and the collision and friction between the granular damping materials produce a damping effect, and the utility model presents the dynamic performance of large damping and high dynamic stiffness. As the vibration frequency of the engine increases and the amplitude decreases, the volume stiffness effect of the damping cavity and the damping effect of the granular damping material gradually decrease. When the engine is in the vibration state of high frequency and small displacement, the volume stiffness effect of the damping cavity and the damping effect of the granular damping material disappear, and the utility model presents the dynamic performance of small damping and low dynamic stiffness. Therefore, vibration isolation, vibration reduction and noise reduction can be realized in a wide frequency range.
因此，本实用新型结构简单可靠、制造方便和成本低，既具有低频高动刚度与大阻尼的动态特性又具有高频低动刚度与小阻尼的动态特性。 Therefore, the utility model has the advantages of simple and reliable structure, convenient manufacture and low cost. It not only has the dynamic characteristics of low frequency, high dynamic stiffness and large damping, but also has the dynamic characteristics of high frequency, low dynamic stiffness and small damping.
附图说明 Description of drawings
图1为本实用新型的一种结构示意图。 Figure 1 is a schematic structural view of the utility model.
具体实施方式 Detailed ways
下面结合附图和具体实施方式对本实用新型作进一步的描述，并非对其保护范围的限制。 The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, which is not intended to limit its protection scope.
实施例1Example 1
一种发动机用颗粒阻尼橡胶隔振器。所述颗粒阻尼橡胶隔振器如图1所示，由上连接螺栓1、上连接板2、隔振橡胶3、下连接板4、下连接螺栓5、颗粒阻尼材料6和阻尼杆7组成。隔振橡胶3的上端面和下端面与对应的上连接板2和下连接板4硫化粘接，下连接板4的下平面固定有下连接螺栓5，上连接板2的上平面固定有上连接螺栓1，上连接板2的下平面固定有阻尼杆7。上连接螺栓1、上连接板2、隔振橡胶3、下连接板4、下连接螺栓5 和阻尼杆7同轴心连接。 The utility model relates to a particle damping rubber vibration isolator for an engine. The particle damping rubber vibration isolator is shown in FIG. 1 and consists of an upper connecting bolt 1 , an upper connecting plate 2 , vibration isolation rubber 3 , a lower connecting plate 4 , a lower connecting bolt 5 , granular damping material 6 and a damping rod 7 . The upper end surface and the lower end surface of the vibration isolation rubber 3 are vulcanized and bonded to the corresponding upper connecting plate 2 and lower connecting plate 4, the lower plane of the lower connecting plate 4 is fixed with the lower connecting bolt 5, and the upper plane of the upper connecting plate 2 is fixed with an upper The connecting bolt 1 and the lower plane of the upper connecting plate 2 are fixed with a damping rod 7 . The upper connecting bolt 1, the upper connecting plate 2, the vibration isolation rubber 3, the lower connecting plate 4, the lower connecting bolt 5 and the damping rod 7 are connected with the same axis.
隔振橡胶3为空心柱体，空心柱体的空心部分与上连接板2和下连接板4间构成封闭的阻尼腔8，所述阻尼腔8内装有颗粒阻尼材料6，颗粒阻尼材料6的装入量为阻尼腔8容积的50~65%。 The vibration isolation rubber 3 is a hollow cylinder, and the hollow part of the hollow cylinder forms a closed damping chamber 8 between the upper connecting plate 2 and the lower connecting plate 4, and the damping chamber 8 is equipped with a granular damping material 6, and the granular damping material 6 The loading amount is 50-65% of the volume of the damping chamber 8 .
所述隔振橡胶3的材质是天然橡胶。 The material of the vibration-isolation rubber 3 is natural rubber.
所述上连接板2的形状为圆形，下连接板4的形状与上连接板2的形状相同。 The shape of the upper connecting plate 2 is circular, and the shape of the lower connecting plate 4 is the same as that of the upper connecting plate 2.
所述阻尼杆7的长度为隔振橡胶3高度的0.6~0.7倍，阻尼杆7自由端的圆锥角为60~90°。 The length of the damping rod 7 is 0.6-0.7 times the height of the vibration-isolation rubber 3, and the cone angle of the free end of the damping rod 7 is 60-90°.
所述颗粒阻尼材料6的形状为球体，直径为0.05～0.5mm。颗粒阻尼材料6的材质为钢。 The shape of the granular damping material 6 is a sphere with a diameter of 0.05-0.5 mm. The granular damping material 6 is made of steel.
所述空心柱体为开有中心孔的圆柱体，所述中心孔为圆形孔。 The hollow cylinder is a cylinder with a central hole, and the central hole is a circular hole.
实施例2Example 2
一种发动机用颗粒阻尼橡胶隔振器。除下述技术参数外，其余同实施例1。 A particle damping rubber vibration isolator for an engine. Except following technical parameter, all the other are with embodiment 1.
所述颗粒阻尼材料6的装入量为阻尼腔8容积的60~75%。 The loading amount of the granular damping material 6 is 60-75% of the volume of the damping chamber 8 .
所述隔振橡胶3的材质是丁腈橡胶。 The material of the vibration-isolation rubber 3 is nitrile rubber.
所述上连接板2的形状为椭圆形，下连接板4的形状与上连接板2的形状相同。 The shape of the upper connecting plate 2 is oval, and the shape of the lower connecting plate 4 is the same as that of the upper connecting plate 2.
所述阻尼杆7的长度为隔振橡胶3高度的0.7~0.8倍，阻尼杆7自由端的圆锥角为70~100°。 The length of the damping rod 7 is 0.7-0.8 times the height of the vibration-isolation rubber 3, and the cone angle of the free end of the damping rod 7 is 70-100°.
所述颗粒阻尼材料6的形状为球体，直径为0.5～1mm。颗粒阻尼材料6的材质为铅。 The shape of the granular damping material 6 is a sphere with a diameter of 0.5-1mm. The particle damping material 6 is made of lead.
所述空心柱体为开有中心孔的椭圆柱体，所述中心孔为椭圆形孔。 The hollow cylinder is an elliptical cylinder with a central hole, and the central hole is an elliptical hole.
实施例3Example 3
一种发动机用颗粒阻尼橡胶隔振器。除下述技术参数外，其余同实施例1。 A particle damping rubber vibration isolator for an engine. Except following technical parameter, all the other are with embodiment 1.
所述颗粒阻尼材料6的装入量为阻尼腔8容积的70~85%。 The loading amount of the granular damping material 6 is 70-85% of the volume of the damping chamber 8 .
所述隔振橡胶3的材质是氯丁橡胶。 The material of the vibration-isolation rubber 3 is neoprene.
所述上连接板2的形状为多边形，下连接板4的形状与上连接板2的形状相同。 The shape of the upper connecting plate 2 is polygonal, and the shape of the lower connecting plate 4 is the same as that of the upper connecting plate 2.
所述阻尼杆7的长度为隔振橡胶3高度的0.7~0.8倍，阻尼杆7自由端的圆锥角为50~80°。 The length of the damping rod 7 is 0.7-0.8 times the height of the vibration-isolation rubber 3, and the cone angle of the free end of the damping rod 7 is 50-80°.
所述颗粒阻尼材料6的形状为球体，直径为1～5mm。颗粒阻尼材料6的材质为铜。 The shape of the granular damping material 6 is a sphere with a diameter of 1-5mm. The granular damping material 6 is made of copper.
所述空心柱体为开有中心孔的棱柱体，所述中心孔多边形孔。 The hollow cylinder is a prism with a central hole, and the central hole is a polygonal hole.
实施例4Example 4
一种发动机用颗粒阻尼橡胶隔振器。除下述技术参数外，其余同实施例1。 A particle damping rubber vibration isolator for an engine. Except following technical parameter, all the other are with embodiment 1.
所述颗粒阻尼材料6的装入量为阻尼腔8容积的50~65%。 The loading amount of the granular damping material 6 is 50-65% of the volume of the damping chamber 8 .
所述隔振橡胶3的材质是丁基橡胶。 The material of the vibration-isolation rubber 3 is butyl rubber.
所述上连接板2的形状为圆形，下连接板4的形状与上连接板2的形状相同。 The shape of the upper connecting plate 2 is circular, and the shape of the lower connecting plate 4 is the same as that of the upper connecting plate 2.
所述阻尼杆7的长度为隔振橡胶3高度的0.6~0.7倍，阻尼杆7自由端的圆锥角为50~90°。 The length of the damping rod 7 is 0.6-0.7 times the height of the vibration-isolation rubber 3, and the cone angle of the free end of the damping rod 7 is 50-90°.
所述颗粒阻尼材料6的形状为球体，直径为0.5～2mm。颗粒阻尼材料6的材质为二氧化硅。 The shape of the granular damping material 6 is a sphere with a diameter of 0.5-2 mm. The granular damping material 6 is made of silicon dioxide.
所述空心柱体为开有中心孔的圆柱体，所述中心孔椭圆形孔。 The hollow cylinder is a cylinder with a central hole, and the central hole is an oval hole.
实施例5Example 5
一种发动机用颗粒阻尼橡胶隔振器。除下述技术参数外，其余同实施例1。 A particle damping rubber vibration isolator for an engine. Except following technical parameter, all the other are with embodiment 1.
所述颗粒阻尼材料6的装入量为阻尼腔8容积的60~75%。 The loading amount of the granular damping material 6 is 60-75% of the volume of the damping chamber 8 .
所述隔振橡胶3的材质是天然橡胶。 The material of the vibration-isolation rubber 3 is natural rubber.
所述上连接板2的形状为椭圆形，下连接板4的形状与上连接板2的形状相同。 The shape of the upper connecting plate 2 is oval, and the shape of the lower connecting plate 4 is the same as that of the upper connecting plate 2.
所述阻尼杆7的长度为隔振橡胶3高度的0.7~0.8倍，阻尼杆7自由端的圆锥角为40~70°。 The length of the damping rod 7 is 0.7-0.8 times the height of the vibration-isolation rubber 3, and the cone angle of the free end of the damping rod 7 is 40-70°.
所述颗粒阻尼材料6的形状为球体，直径为1～3mm。颗粒阻尼材料6的材质为云母。 The shape of the granular damping material 6 is a sphere with a diameter of 1-3mm. The particle damping material 6 is made of mica.
所述空心柱体为开有中心孔的椭圆柱体，所述中心孔为多边形孔。 The hollow cylinder is an elliptical cylinder with a central hole, and the central hole is a polygonal hole.
实施例6Example 6
一种发动机用颗粒阻尼橡胶隔振器。除下述技术参数外，其余同实施例1。 A particle damping rubber vibration isolator for an engine. Except following technical parameter, all the other are with embodiment 1.
所述颗粒阻尼材料6的装入量为阻尼腔8容积的70~85%。 The loading amount of the granular damping material 6 is 70-85% of the volume of the damping chamber 8 .
所述隔振橡胶3的材质是丁基橡胶。 The material of the vibration-isolation rubber 3 is butyl rubber.
所述上连接板2的形状为多边形，下连接板4的形状与上连接板2的形状相同。 The shape of the upper connecting plate 2 is polygonal, and the shape of the lower connecting plate 4 is the same as that of the upper connecting plate 2.
所述阻尼杆7的长度为隔振橡胶3高度的0.6~0.7倍，阻尼杆7自由端的圆锥角为30~60°。 The length of the damping rod 7 is 0.6-0.7 times the height of the vibration-isolation rubber 3, and the cone angle of the free end of the damping rod 7 is 30-60°.
所述颗粒阻尼材料6的形状为球体，直径为3～5mm。颗粒阻尼材料6的材质为陶瓷。 The shape of the granular damping material 6 is a sphere with a diameter of 3-5mm. The granular damping material 6 is made of ceramics.
所述空心柱体为开有中心孔的棱柱体，所述中心孔为圆形孔。 The hollow cylinder is a prism with a central hole, and the central hole is a circular hole.
本具体实施方式与现有的技术方案相比具有如下积极效果： Compared with the existing technical solutions, this specific embodiment has the following positive effects:
本具体实施方式在传统的橡胶隔振器中内置一种颗粒阻尼器而成。与发动机连接的上连接螺栓1、与车架连接的下连接螺栓5、隔振橡胶3、上连接板2和下连接板4组成的橡胶隔振器保证了悬置总成的安装要求，提供支承发动机所需的静刚度。 This specific embodiment is formed by a particle damper built into a traditional rubber vibration isolator. The rubber vibration isolator composed of the upper connecting bolt 1 connected with the engine, the lower connecting bolt 5 connected with the vehicle frame, the vibration isolation rubber 3, the upper connecting plate 2 and the lower connecting plate 4 ensures the installation requirements of the suspension assembly, providing The static stiffness required to support the engine.
本具体实施方式中的隔振橡胶3分别与上连接板2和下连接板4硫化粘接在一起。隔振橡胶3设有中心孔，该中心孔与上连接板2和下连接板4间的封闭容积构成阻尼腔8，在阻尼腔8中装入颗粒阻尼材料6，阻尼杆7杆体的大半部分位于阻尼腔8内的颗粒阻尼材料6中。在发动机振动过程中，阻尼腔8的容积发生变化，产生附加的体积刚度，阻尼杆7与颗粒阻尼材料6之间的摩擦以及颗粒阻尼材料6之间的碰撞与摩擦产生所需的阻尼。故本具体实施方式结构简单可靠、制造方便和成本低。 The vibration-isolation rubber 3 in this specific embodiment is vulcanized and bonded to the upper connecting plate 2 and the lower connecting plate 4 respectively. The vibration-isolation rubber 3 is provided with a central hole, and the closed volume between the central hole and the upper connecting plate 2 and the lower connecting plate 4 constitutes a damping cavity 8, and the granular damping material 6 is placed in the damping cavity 8, and most of the rod body of the damping rod 7 In the granular damping material 6 inside the damping cavity 8 . During the vibration process of the engine, the volume of the damping cavity 8 changes, resulting in additional bulk stiffness, and the friction between the damping rod 7 and the granular damping material 6 as well as the collision and friction between the granular damping materials 6 produce the required damping. Therefore, this embodiment has simple and reliable structure, convenient manufacture and low cost.
当发动机在低频、大位移振动状态时，本具体实施方式的阻尼腔8的压力升高，产生附加的体积刚度。同时，阻尼杆7与颗粒阻尼材料6之间的摩擦以及颗粒阻尼材料6之间的碰撞与摩擦产生阻尼作用，本具体实施方式呈现大阻尼、高动刚度的动态性能。随着发动机振动频率增大和振幅减小，这种阻尼腔8的体积刚度效应与颗粒阻尼材料6的阻尼作用逐渐减小。发动机在高频和小位移振动状态时，阻尼腔8的体积刚度效应与颗粒阻尼材料6的阻尼作用消失，本具体实施方式呈现小阻尼和低动刚度的动态性能。故能在较宽的频率范围内实现隔振、减振和降噪。 When the engine is in a low-frequency, large-displacement vibration state, the pressure of the damping chamber 8 in this specific embodiment increases, resulting in additional bulk stiffness. At the same time, the friction between the damping rod 7 and the granular damping material 6 and the collision and friction between the granular damping materials 6 produce a damping effect, and this specific embodiment presents a dynamic performance of large damping and high dynamic stiffness. As the vibration frequency of the engine increases and the amplitude decreases, the volume stiffness effect of the damping cavity 8 and the damping effect of the granular damping material 6 gradually decrease. When the engine is in the vibration state of high frequency and small displacement, the volume stiffness effect of the damping chamber 8 and the damping effect of the granular damping material 6 disappear, and this embodiment presents the dynamic performance of small damping and low dynamic stiffness. Therefore, vibration isolation, vibration reduction and noise reduction can be realized in a wide frequency range.
因此，本具体实施方式结构简单可靠、制造方便和成本低，既具有低频高动刚度与大阻尼的动态特性又具有高频低动刚度与小阻尼的动态特性。 Therefore, this specific embodiment has simple and reliable structure, convenient manufacture and low cost, and not only has the dynamic characteristics of low frequency, high dynamic stiffness and large damping, but also has the dynamic characteristics of high frequency, low dynamic stiffness and small damping.
Claims (6)
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196955A (en) * | 2014-08-27 | 2014-12-10 | 武汉科技大学 | Particle damping rubber vibration isolator of engine |
| CN104813853A (en) * | 2015-04-23 | 2015-08-05 | 宁波创跃园林工具有限公司 | Shock absorption type multipurpose pruning machine |
| CN104948657A (en) * | 2015-05-13 | 2015-09-30 | 泰州扬子江车辆部件有限公司 | Bionic layer and engine cylinder block vibration damping structure |
| CN109654150A (en) * | 2019-01-30 | 2019-04-19 | 河海大学常州校区 | A kind of rubber vibration isolation device |
| CN109695651A (en) * | 2019-01-30 | 2019-04-30 | 河海大学常州校区 | A kind of rubber vibration isolation device |
| CN113889361A (en) * | 2020-07-03 | 2022-01-04 | 西门子股份公司 | Contact bounce mitigation device for switchgear |
| CN114382831A (en) * | 2021-12-02 | 2022-04-22 | 北京无线电计量测试研究所 | Vibration isolator for external cavity semiconductor laser |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196955A (en) * | 2014-08-27 | 2014-12-10 | 武汉科技大学 | Particle damping rubber vibration isolator of engine |
| CN104813853A (en) * | 2015-04-23 | 2015-08-05 | 宁波创跃园林工具有限公司 | Shock absorption type multipurpose pruning machine |
| CN104813853B (en) * | 2015-04-23 | 2017-03-01 | 宁波创跃园林工具有限公司 | A kind of multiplex pruning machine of shock absorbing type |
| CN104948657A (en) * | 2015-05-13 | 2015-09-30 | 泰州扬子江车辆部件有限公司 | Bionic layer and engine cylinder block vibration damping structure |
| CN104948657B (en) * | 2015-05-13 | 2017-03-01 | 泰州扬子江车辆部件有限公司 | A kind of bionical layer engine cylinder-body vibration-proof structure |
| CN109654150A (en) * | 2019-01-30 | 2019-04-19 | 河海大学常州校区 | A kind of rubber vibration isolation device |
| CN109695651A (en) * | 2019-01-30 | 2019-04-30 | 河海大学常州校区 | A kind of rubber vibration isolation device |
| CN113889361A (en) * | 2020-07-03 | 2022-01-04 | 西门子股份公司 | Contact bounce mitigation device for switchgear |
| CN114382831A (en) * | 2021-12-02 | 2022-04-22 | 北京无线电计量测试研究所 | Vibration isolator for external cavity semiconductor laser |
| CN114382831B (en) * | 2021-12-02 | 2024-03-19 | 北京无线电计量测试研究所 | Vibration isolator for external cavity semiconductor laser |
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