CN103697098A - Double-level rigidity elastic body combined device - Google Patents
Double-level rigidity elastic body combined device Download PDFInfo
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Abstract
The invention discloses a double-level rigidity elastic body combined device which comprises at least one low-rigidity elastic element and a high-rigidity elastic element. The low-rigidity elastic elements are arranged in an elastic body pre-compression device, and the low-rigidity elastic elements and the high-rigidity elastic element are arranged in a serial connection manner under the effect of a pre-compression load F1. The double-level rigidity elastic body combined device has the advantages that the double-level rigidity elastic body combined device has such combined rigidity that the device is hard at first and then is flexible; the double-level rigidity elastic body combined device is high in compression rigidity when the double-level rigidity elastic body combined device is used as an elastic suspension device of an axle box of a railway vehicle and deformation displacement is extremely small, and the compression rigidity of the device starts to be deteriorated when the deformation displacement reaches a set numerical value, so that the conflict problem that requirements on the straight and snaking critical speed of an existing vehicle and the curve line negotiating capacity of the existing vehicle cannot be simultaneously met can be effectively solved; the device further can be applied to various places among relevant components of railway vehicles, the service places have requirements on the combined rigidity of elastic body damping devices, and the elastic body damping devices with the combined rigidity are required to be hard at first and then flexible, so that impact of the vehicles on wheel tracks can be buffered, the dynamic performance of the vehicles can be enhanced, the running safety of the vehicles can be guaranteed, and the operation quality of the railway vehicles can be greatly improved.
Description
Technical field
The present invention relates to elastomer buffering shock-absorbing device, refer to particularly a kind of two stage stiffness formula elastomer group locking device that is mainly used in buffer shock-absorbing between railway vehicle member.
Background technique
Railway vehicle is a kind of special car moving on ad hoc track, and it can automatic guide during along ad hoc orbital motion, without controlling party to.Bogie belongs to one of most important parts on railway vehicle, and it supports the weight of whole goods weight and car body itself.Conventional bogie is to comprise two bogie side frames compositions and a research structure that bolster forms mostly, the two ends drawing strickle guide that bogie side frame forms is arranged on front and back wheels to forming by axle box adapter and bearing means, and the two ends that bolster forms are arranged in the central square frame of bogie side frame composition by two groups of central mounting devices.Axle box adapter and bearing means are that contact bogie side frame forms and the turning joint of wheel to composition, and it makes wheel be converted into car body along the translation of track circuit along the rolling of track circuit, and can along straight line circuit, move and be smoothly through curve neatly.
Railway vehicle during high speed operation, will be supervened complicated shock and vibration phenomenon in orbit.In order to reduce track circuit irregularity and to take turns to high-speed motion the various dynamic effects to car body, as impact of collision, vertical vibration, transverse vibration etc., those skilled in the art, according to the difference of various vehicle conditions, tend to, between vehicle associated components, elastic vibration clamper is set.For example at side frame guide and the wheel of bogie, between forming, set up axle box spring suspension device, axle box spring suspension device generally comprises at the vertical elastic device between axle box adapter end face and side frame guide bottom surface and the longitudinal elasticity device between axle box adapter and side frame guide bi-side, its vehicle linear movement whether steadily, can be smoothly by curve and guarantee that the aspects such as vehicle safety operation all play an important role.
Along with the continuous increase of railway vehicle load capacity, vehicle self axle focuses on continuous increase, and running velocity is also improving constantly, and this quality and performance to the bogie of car requires also more and more higher.Under heavily loaded fast state, vehicle wheel just more easily evokes the yaw motion of car body during to orbital motion, causes vehicle operating quality significantly to reduce, and when serious, also can cause vehicle derailing accident.Meanwhile, the wheel-rail lateral force of vehicle during by curve can not be too large, otherwise vehicle also has the possibility of derailing.
And directly affect one of the critical operation speed of crawling of railway vehicle on straight line and vehicle critical component that passes through performance on curve, be exactly the longitudinal elasticity device in above-mentioned axle box spring suspension device, its structure shape design and elastic stiffness parameter designing are most important.The critical operation speed of crawling while moving on straight line in order to improve vehicle, necessarily requires its longitudinal register rigidity more greatly; In order to make vehicle transverse force between wheel track when by curve not too big, require again its longitudinal register rigidity less.
At present, improving the crawl critical operation speed of vehicle on straight line and improving vehicle is conflict body by performance on curve, in the specific design of above-mentioned longitudinal elasticity device, is difficult to take into account.This be because:
Existing elastic device consists of two or more elastomer series, parallel or the also series-parallel connection of going here and there conventionally.For example: three elastomer K1, K2 shown in Fig. 1, K3 cascaded structure, three elastomer K1, K2 shown in Fig. 2, K3 parallel-connection structure, seven elastomer K1 shown in Fig. 3～K7 string hybrid connected structure.The common feature of these elastic devices is: its composite rigidity is linear rigidity or first little rear large rigidity normally, is generally first soft rear hard rigidity.When it is subject to the used time of doing of extraneous load p, the less elastomer of rigidity is bearing load first, produces larger deformational displacement; Can be just the elastomer bearing load that rigidity is larger afterwards, produce less deformational displacement.While being specifically applied in above-mentioned longitudinal elasticity device, be subject to self first soft rear hard restriction of composite rigidity, the increase of its deformational displacement amount is linearity with load or equal proportion increases corresponding.Like this, cannot take into account vehicle straight line completely and crawl the large rigidity requirement of critical operation speed and curve passing through by the little rigidity requirement of performance, also have the risk of derail simultaneously, greatly reduce the effect of its buffer shock-absorbing.
How effectively to promote straight line stationary performance and the curving performance of heavily loaded hot-short operation, that those skilled in the art attempt the difficult problem solving always, this to improving the operation quality of railway vehicle, ensure that the Safety performance of railway vehicle has important practical significance.
Summary of the invention
Object of the present invention will provide a kind of two stage stiffness formula elastomer group locking device exactly, it has first hard rear soft composite rigidity, both can be applicable to take into account in axle box spring suspension device railway vehicle straight line and crawled critical operation speed and curve passing through by the requirement of performance, can be applicable to again need between railway vehicle associated components the occasion of similar buffer shock-absorbing.
For achieving the above object, the two stage stiffness formula elastomer group locking device that the present invention is designed, its special way is: it has at least one little rigidity elastic element and a large rigidity elastic element, and described little rigidity elastic element is arranged in elastomer pre-compression device and under the effect of precompression load F1 and arranges with large rigidity elastic element series; Meanwhile, it meets following relation in suffered work loads F2 process from small to large: when F2 < F1, and the first compressed deformation of described large rigidity elastic element; When F2=F1, described large rigidity elastic element and by precompressed little rigidity elastic element in threshold state; Until during F2 > F1, described little rigidity elastic element just starts to be continued compressive deformation; Thereby make this elastomer group locking device under loaded-up condition, there is first hard rear soft two-stage and become stiffness characteristics.
As the first preferred version:
Described large rigidity elastic element has elastic caoutchouc basic unit, and described elastic caoutchouc basic unit is clamped between two metal carrier boards and with their sulfurations becomes integral body.
Described elastomer pre-compression device has outer rigid cap, in described outer rigid cap, be axially provided with guide-localization screw rod, described guide-localization screw rod one end is stretched out outer rigid cap opening and is fixedly connected with in described two metal carrier boards one, and the described guide-localization screw rod the other end stretches out outer rigid cap bottom surface and is threaded with locking nut.
Described little rigidity elastic element has cone barrel type rubber layer, described cone barrel type rubber layer is arranged between described outer rigid cap inwall and described guide-localization screw rod and becomes integral body with their sulfurations, described cone barrel type rubber layer under locking nut screwing effect in its pre-compressed state.
As the second preferred version:
Described large rigidity elastic element is identical with the structure in the first preferred version with described elastomer pre-compression device.Different:
Described little rigidity elastic element has the folded rubber layer of spelling of cylindrical shape by multilayer metal foil and the whole sulfidization molding of multilayer rubber interlaced arrangement, the folded rubber layer of spelling of described cylindrical shape is sleeved on described guide-localization screw rod, the folded butt of spelling in rubber layer one end and described two metal carrier boards of described cylindrical shape, the folded rubber layer the other end and the described outer rigid cap bottom surface butt of spelling of described cylindrical shape, the folded spelling of described cylindrical shape rubber layer under locking nut screwing effect in its pre-compressed state.
As the third preferred version:
Described large rigidity elastic element is also identical with the structure in the first preferred version with described elastomer pre-compression device.Different:
Described little rigidity elastic element has metal coil spring, described metal coil spring is sleeved on described guide-localization screw rod, a butt in described metal coil spring one end and described two metal carrier boards, the described metal coil spring the other end and described outer rigid cap bottom surface butt, described metal coil spring under locking nut screwing effect in its pre-compressed state.
The general character of above three kinds of preferred versions is that large rigidity elastic element and guide-localization screw rod are the integrated design, and jointly little rigidity elastic element is applied to precompression load F1.
As the 4th kind of preferred version:
Described large rigidity elastic element has elastic caoutchouc basic unit, and described elastic caoutchouc basic unit is clamped between two metal carrier boards and with their sulfurations becomes integral body.
Described elastomer pre-compression device has outer rigid cap, in described outer rigid cap, be axially provided with guide-localization screw rod, described guide-localization screw rod one end is stretched out outer rigid cap opening and is fixedly connected with an end face baffle plate, the described guide-localization screw rod the other end stretches out outer rigid cap bottom surface and is threaded with locking nut, described end face baffle plate coordinates with a butt in described two metal carrier boards, and the end face of another piece metal carrier board is provided with positioning boss.
Described little rigidity elastic element has metal coil spring, described metal coil spring is sleeved on described guide-localization screw rod, described metal coil spring one end and described end face baffle plate butt, the described metal coil spring the other end and described outer rigid cap bottom surface butt, described metal coil spring under locking nut screwing effect in its pre-compressed state.
The feature of this kind of structure is that large rigidity elastic element and guide-localization screw rod are split-type design, by end face baffle plate, little rigidity elastic element is applied to precompression load F1.
Further, described little rigidity elastic element and large rigidity elastic element all can be combined by two and plural independent resilient element series, parallel or string series-parallel connection.Like this, can adjust flexibly according to actual needs the physical property of little rigidity elastic element and large rigidity elastic element, meet the needs of different operating mode buffering shock-absorbing devices.
Groundwork principle of the present invention is as follows: the little rigidity elastic element that designed two stage stiffness formula elastomer group locking device is arranged in elastomer pre-compression device by compression combines with large rigidity elastic element series.When two stage stiffness formula elastomer group locking device bearing load, because initial load is less than the load that little rigidity elastic element precompression is set, therefore large rigidity elastic element bearing load first; Along with the increase gradually of load, the deformational displacement amount of two stage stiffness formula elastomer group locking device also can slowly increase; But the load that before being greater than once load, little rigidity elastic element precompression is set, little rigidity elastic element will start bearing load, because its rigidity is less, after bearing load, its deformational displacement amount meeting increases fast, thereby realize the first hard rear soft two-stage of two stage stiffness formula elastomer group locking device, becomes stiffness characteristics.
The invention has the advantages that: designed two stage stiffness formula elastomer group locking device is simple in structure, principle science, be skillfully constructed, be easy to realize first hard after soft spring rate characteristic.While using it for railway vehicle axle box spring suspension device, when deformational displacement amount is very little, there is larger compression stiffness, can guarantee that railway vehicle has the higher critical velocity of crawling while moving on straight line, meet the needs of vehicle speed-raising operation; And when deformational displacement amount reaches the numerical value of setting, its compression stiffness starts to diminish, can guarantee that when railway vehicle passes through curve, the transverse force between wheel track is not too large, the safety of support vehicles bend operation, thus efficiently solve the vehicle straight line contradiction that critical velocity and curve passing through cannot take into account by performance of crawling.Simultaneously, the present invention also can be applicable to the first hard rear soft occasion of various elasticity of demand body vibration damping equipment composite rigidities between railway vehicle associated components, relaxes vehicle wheel-rail impact, improves dynamics of vehicle performance, support vehicles security of operation, and then significantly improve the operation quality of railway vehicle.
Accompanying drawing explanation
Fig. 1 is the structural representation of three elastomer series connection in prior art.
Fig. 2 is the structural representation of three elastomer parallel connections in prior art.
Fig. 3 is the structural representation of seven elastomer strings series-parallel connection in prior art.
Fig. 4 is that the first two stage stiffness formula elastomer group locking device is at the axle box adapter of bogies for railway vehicles and the mounting point schematic diagram between side frame guide front and back sides.
Fig. 5 is the sectional structure schematic diagram of the first two stage stiffness formula elastomer group locking device.
Fig. 6 is the sectional structure schematic diagram of the second two stage stiffness formula elastomer group locking device.
Fig. 7 is the sectional structure schematic diagram of the third two stage stiffness formula elastomer group locking device.
Fig. 8 is the sectional structure schematic diagram of the 4th kind of two stage stiffness formula elastomer group locking device.
In figure, each parts label is as follows: elastomer K1～K7, extraneous load p; Little rigidity elastic element 1(is wherein: cone barrel type rubber layer 1a, folded rubber layer 1b, the metal coil spring 1c of spelling of cylindrical shape); Rigidity elastic element 2(wherein greatly: the 2a of elastic caoutchouc basic unit, metal carrier board 2b, positioning boss 2c); Elastomer pre-compression device 3(is wherein: outer rigid cap 3a, guide-localization screw rod 3b, locking nut 3c, end face baffle plate 3d); Side frame guide 4; Axle box adapter 5.
Embodiment
In order to explain better the present invention, below in conjunction with the drawings and specific embodiments, further illustrate main contents of the present invention, but content of the present invention is not only confined to following examples.
Elastomer combination structure of the prior art have been introduced in background technique as shown in Figures 1 to 3, in this, repeats no more.
As shown in Figure 4, the first two stage stiffness formula elastomer group locking device of the present invention, be arranged between the side frame guide 4 of bogies for railway vehicles and the front and back sides of axle box adapter 5, it has a little rigidity elastic element 1 and a large rigidity elastic element 2, and little rigidity elastic element 1 is arranged in elastomer pre-compression device 3 and under the effect of precompression load F1 and large rigidity elastic element 2 tandem arrangement.
As shown in Figure 5, large rigidity elastic element 2 has the 2a of elastic caoutchouc basic unit, and the 2a of elastic caoutchouc basic unit is clamped between two metal carrier board 2b and with their sulfurations becomes integral body.Elastomer pre-compression device 3 has outer rigid cap 3a, in outer rigid cap 3a, be axially provided with guide-localization screw rod 3b, guide-localization screw rod 3b stretches out one end outer rigid cap 3a opening and is fixedly connected with a metal carrier board 2b wherein, and the guide-localization screw rod 3b the other end stretches out outer rigid cap 3a bottom surface and is threaded with locking nut 3c.Little rigidity elastic element 1 has cone barrel type rubber layer 1a, and cone barrel type rubber layer 1a is arranged between outer rigid cap 3a inwall and guide-localization screw rod 3b and with their sulfurations becomes integral body.Cone barrel type rubber layer 1a after locking nut 3c tightens, the effect of preloading contracting load F1 and in its pre-compressed state.
Meanwhile, this two stage stiffness formula elastomer group locking device meets following relation in its suffered work loads F2 process from small to large: during as F2 < F1, and the large first compressed deformation of rigidity elastic element 2; When F2=F1, large rigidity elastic element 2 and by precompressed little rigidity elastic element 1 in threshold state; Until during F2 > F1, little rigidity elastic element 1 just starts to be continued compressive deformation; Thereby make two stage stiffness formula elastomer group locking device under loaded-up condition, there is first hard rear soft two-stage and become stiffness characteristics.
Still as shown in Figure 4, the first two stage stiffness formula elastomer group locking device is when assembling, the outer rigid cap 3a of its elastomer pre-compression device 3 is detachable to be embedded in the side mounting hole of side frame guide 4, another piece metal carrier board 2b of its large rigidity elastic element 2, under little rigidity elastic element 1 effect, is connected on the side of axle box adapter 5.
In railway vehicle running, when above-mentioned two stage stiffness formula elastomer group locking device bearing load, because initial load is less than the precompression load F1 of little rigidity elastic element 1, therefore large rigidity elastic element 2 bearing load first.Like this, two stage stiffness formula elastomer group locking device has larger compression stiffness when deformational displacement amount is very little, can guarantee that railway vehicle has the higher critical velocity of crawling while moving on straight line, meets the needs of vehicle speed-raising operation.Along with the increase gradually of load, the deformational displacement amount of two stage stiffness formula elastomer group locking device also can slowly increase.And once load, being greater than the precompression load F1 of little rigidity elastic element 1, little rigidity elastic element 1 will start bearing load.Now, the compression stiffness of two stage stiffness formula elastomer group locking device starts to diminish, and its deformational displacement amount can increase fast, thereby realize first hard rear soft two-stage, becomes stiffness characteristics, guarantee that when railway vehicle passes through curve, the transverse force between wheel track is not too large, the safety of support vehicles curve motion.
As shown in Figure 6, the second two stage stiffness formula elastomer group locking device of the present invention, the structure of its large rigidity elastic element 2 and elastomer pre-compression device 3 is identical with the first, and just its little rigidity elastic element 1 is distinguished to some extent.This little rigidity elastic element 1 has the folded rubber layer 1b that spells of cylindrical shape by multilayer metal foil and the whole sulfidization molding of multilayer rubber interlaced arrangement, the folded rubber layer 1b that spells of cylindrical shape is sleeved on guide-localization screw rod 3b, cylindrical shape folded spelling rubber layer 1b one end and wherein a metal carrier board 2b butt, the folded rubber layer 1b the other end and the outer rigid cap 3a bottom surface butt of spelling of cylindrical shape.The folded rubber layer 1b that spells of cylindrical shape after locking nut 3c tightens, the effect of preloading contracting load F1 and in its pre-compressed state.
The third two stage stiffness formula elastomer group locking device as shown in Figure 7, the structure of its large rigidity elastic element 2 and elastomer pre-compression device 3 is also identical with the first, and difference is only on its little rigidity elastic element 1.This little rigidity elastic element 1 has metal coil spring 1c, metal coil spring 1c is sleeved on guide-localization screw rod 3b, metal coil spring 1c one end and wherein a metal carrier board 2b butt, the metal coil spring 1c the other end and outer rigid cap 3a bottom surface butt.Metal coil spring 1c after locking nut 3c tightens, the effect of preloading contracting load F1 and in its pre-compressed state.
The 4th kind of two stage stiffness formula elastomer group locking device as shown in Figure 8, structure and above-mentioned three kinds similar.Its large rigidity elastic element 2 has the 2a of elastic caoutchouc basic unit, and the 2a of elastic caoutchouc basic unit is clamped between two metal carrier board 2b and with their sulfurations becomes integral body.Its elastomer pre-compression device 3 has outer rigid cap 3a, in outer rigid cap 3a, be axially provided with guide-localization screw rod 3b, guide-localization screw rod 3b stretches out one end outer rigid cap 3a opening and is fixedly connected with an end face baffle plate 3d, the guide-localization screw rod 3b the other end stretches out outer rigid cap 3a bottom surface and is threaded with locking nut 3c, end face baffle plate 3d coordinates with a metal carrier board 2b butt wherein, and the end face of another piece metal carrier board 2b is provided with positioning boss 2c.Its little rigidity elastic element 1 has metal coil spring 1c, metal coil spring 1c is sleeved on guide-localization screw rod 3b, metal coil spring 1c one end and end face baffle plate 3d butt, the metal coil spring 1c the other end and outer rigid cap 3a bottom surface butt, metal coil spring 1c after locking nut 3c tightens, the effect of preloading contracting load F1 and in its pre-compressed state.
The 4th kind of two stage stiffness formula elastomer group locking device is when assembling, the outer rigid cap 3a of its elastomer pre-compression device 3 is detachable to be embedded in the side mounting hole of side frame guide 4, positioning boss 2c on another piece metal carrier board 2b end face of its large rigidity elastic element 2 is suspended in the side mounting hole of axle box adapter 5, and by metal coil spring 1c and end face baffle plate 3d extruding location; Its effect obtaining is also identical with aforementioned three kinds of embodiments.
Claims (8)
1. a two stage stiffness formula elastomer group locking device, it is characterized in that: it has at least one little rigidity elastic element (1) and a large rigidity elastic element (2), described little rigidity elastic element (1) is arranged in elastomer pre-compression device (3) and under the effect of precompression load F1 and large rigidity elastic element (2) tandem arrangement; Meanwhile, it meets following relation in suffered work loads F2 process from small to large: when F2 < F1, and the first compressed deformation of described large rigidity elastic element (2); When F2=F1, described large rigidity elastic element (2) and by precompressed little rigidity elastic element (1) in threshold state; Until during F2 > F1, described little rigidity elastic element (1) just starts to be continued compressive deformation; Thereby make this elastomer group locking device under loaded-up condition, there is first hard rear soft two-stage and become stiffness characteristics.
2. two stage stiffness formula elastomer group locking device according to claim 1, it is characterized in that: described large rigidity elastic element (2) has elastic caoutchouc basic unit (2a), described elastic caoutchouc basic unit (2a) is clamped between two metal carrier boards (2b) and with their sulfurations becomes integral body;
Described elastomer pre-compression device (3) has outer rigid cap (3a), in described outer rigid cap (3a), be axially provided with guide-localization screw rod (3b), described guide-localization screw rod (3b) one end is stretched out outer rigid cap (3a) opening and is fixedly connected with in described two metal carrier boards (2b) one, and described guide-localization screw rod (3b) the other end stretches out outer rigid cap (3a) bottom surface and is threaded with locking nut (3c);
Described little rigidity elastic element (1) has cone barrel type rubber layer (1a), described cone barrel type rubber layer (1a) is arranged between described outer rigid cap (3a) inwall and described guide-localization screw rod (3b) and with their sulfurations becomes integral body, and described cone barrel type rubber layer (1a) is tightened under effect in its pre-compressed state at locking nut (3c).
3. two stage stiffness formula elastomer group locking device according to claim 1, it is characterized in that: described large rigidity elastic element (2) has elastic caoutchouc basic unit (2a), described elastic caoutchouc basic unit (2a) is clamped between two metal carrier boards (2b) and with their sulfurations becomes integral body;
Described elastomer pre-compression device (3) has outer rigid cap (3a), in described outer rigid cap (3a), be axially provided with guide-localization screw rod (3b), described guide-localization screw rod (3b) one end is stretched out outer rigid cap (3a) opening and is fixedly connected with in described two metal carrier boards (2b) one, and described guide-localization screw rod (3b) the other end stretches out outer rigid cap (3a) bottom surface and is threaded with locking nut (3c);
Described little rigidity elastic element (1) has the folded rubber layer (1b) of spelling of cylindrical shape by multilayer metal foil and the whole sulfidization molding of multilayer rubber interlaced arrangement, the folded rubber layer (1b) of spelling of described cylindrical shape is sleeved on described guide-localization screw rod (3b), the folded butt of spelling in rubber layer (1b) one end and described two metal carrier boards (2b) of described cylindrical shape, folded rubber layer (1b) the other end and described outer rigid cap (3a) the bottom surface butt of spelling of described cylindrical shape, the folded rubber layer (1b) of spelling of described cylindrical shape is tightened under effect in its pre-compressed state at locking nut (3c).
4. two stage stiffness formula elastomer group locking device according to claim 1, it is characterized in that: described large rigidity elastic element (2) has elastic caoutchouc basic unit (2a), described elastic caoutchouc basic unit (2a) is clamped between two metal carrier boards (2b) and with their sulfurations becomes integral body;
Described elastomer pre-compression device (3) has outer rigid cap (3a), in described outer rigid cap (3a), be axially provided with guide-localization screw rod (3b), described guide-localization screw rod (3b) one end is stretched out outer rigid cap (3a) opening and is fixedly connected with in described two metal carrier boards (2b) one, and described guide-localization screw rod (3b) the other end stretches out outer rigid cap (3a) bottom surface and is threaded with locking nut (3c);
Described little rigidity elastic element (1) has metal coil spring (1c), described metal coil spring (1c) is sleeved on described guide-localization screw rod (3b), a butt in described metal coil spring (1c) one end and described two metal carrier boards (2b), described metal coil spring (1c) the other end and described outer rigid cap (3a) bottom surface butt, described metal coil spring (1c) is tightened under effect in its pre-compressed state at locking nut (3c).
5. two stage stiffness formula elastomer group locking device according to claim 1, it is characterized in that: described large rigidity elastic element (2) has elastic caoutchouc basic unit (2a), described elastic caoutchouc basic unit (2a) is clamped between two metal carrier boards (2b) and with their sulfurations becomes integral body;
Described elastomer pre-compression device (3) has outer rigid cap (3a), in described outer rigid cap (3a), be axially provided with guide-localization screw rod (3b), described guide-localization screw rod (3b) one end is stretched out outer rigid cap (3a) opening and is fixedly connected with an end face baffle plate (3d), described guide-localization screw rod (3b) the other end stretches out outer rigid cap (3a) bottom surface and is threaded with locking nut (3c), described end face baffle plate (3d) coordinates with a butt in described two metal carrier boards (2b), the end face of another piece metal carrier board (2b) is provided with positioning boss (2c),
Described little rigidity elastic element (1) has metal coil spring (1c), described metal coil spring (1c) is sleeved on described guide-localization screw rod (3b), described metal coil spring (1c) one end and described end face baffle plate (3d) butt, described metal coil spring (1c) the other end and described outer rigid cap (3a) bottom surface butt, described metal coil spring (1c) is tightened under effect in its pre-compressed state at locking nut (3c).
6. according to the two stage stiffness formula elastomer group locking device described in any one in claim 1～5, it is characterized in that: described little rigidity elastic element (1) is combined by two and plural independent resilient element series, parallel or string series-parallel connection.
7. according to the two stage stiffness formula elastomer group locking device described in any one in claim 1～5, it is characterized in that: described large rigidity elastic element (2) is combined by two and plural independent resilient element series, parallel or string series-parallel connection.
8. two stage stiffness formula elastomer group locking device according to claim 7, is characterized in that: described large rigidity elastic element (2) is combined by two and plural independent resilient element series, parallel or string series-parallel connection.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310746689.8A CN103697098B (en) | 2013-12-30 | 2013-12-30 | Two stage stiffness formula elastomer group locking device |
| AU2014375731A AU2014375731B2 (en) | 2013-12-30 | 2014-10-31 | Two-stage-rigidity combination elastic-member device |
| PCT/CN2014/090007 WO2015101094A1 (en) | 2013-12-30 | 2014-10-31 | Two-stage-rigidity combination elastic-member device |
| US14/784,933 US10161468B2 (en) | 2013-12-30 | 2014-10-31 | Two-stage stiffness type elastomer combined device |
| SA515370231A SA515370231B1 (en) | 2013-12-30 | 2015-12-03 | Two-stage stiffness type elastomer combined device |
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| CN201310746689.8A CN103697098B (en) | 2013-12-30 | 2013-12-30 | Two stage stiffness formula elastomer group locking device |
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| CN103697098A true CN103697098A (en) | 2014-04-02 |
| CN103697098B CN103697098B (en) | 2016-08-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015101094A1 (en) * | 2013-12-30 | 2015-07-09 | 南车长江车辆有限公司 | Two-stage-rigidity combination elastic-member device |
| CN108895208A (en) * | 2018-08-03 | 2018-11-27 | 重庆君道消防安全技术股份公司 | Variable fixed frequency para-seismic support |
| CN109307031A (en) * | 2017-07-26 | 2019-02-05 | 住友理工株式会社 | Vibration absorber |
| CN109505962A (en) * | 2018-12-28 | 2019-03-22 | 西南交通大学 | A kind of gear-box C-shaped bracket of variable support rubber stiffness |
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| WO2015101094A1 (en) * | 2013-12-30 | 2015-07-09 | 南车长江车辆有限公司 | Two-stage-rigidity combination elastic-member device |
| US10161468B2 (en) | 2013-12-30 | 2018-12-25 | Crrc Yangtze Corporation Limited | Two-stage stiffness type elastomer combined device |
| CN109307031A (en) * | 2017-07-26 | 2019-02-05 | 住友理工株式会社 | Vibration absorber |
| CN108895208A (en) * | 2018-08-03 | 2018-11-27 | 重庆君道消防安全技术股份公司 | Variable fixed frequency para-seismic support |
| CN108895208B (en) * | 2018-08-03 | 2024-05-03 | 重庆君道消防安全技术股份公司 | Variable fixed frequency anti-seismic bracket |
| CN109505962A (en) * | 2018-12-28 | 2019-03-22 | 西南交通大学 | A kind of gear-box C-shaped bracket of variable support rubber stiffness |
| CN109505962B (en) * | 2018-12-28 | 2023-10-24 | 西南交通大学 | Gear box C-shaped bracket with variable supporting rubber rigidity |
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