CN210856915U - Damping support using inclined ring spring - Google Patents
Damping support using inclined ring spring Download PDFInfo
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- CN210856915U CN210856915U CN201921151459.6U CN201921151459U CN210856915U CN 210856915 U CN210856915 U CN 210856915U CN 201921151459 U CN201921151459 U CN 201921151459U CN 210856915 U CN210856915 U CN 210856915U
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Abstract
The utility model discloses an use shock mount of oblique circle spring, including the support hypoplastron, be fixed with the outer fixture of the annular spring of cavity on the support hypoplastron, the outer fixture of spring is inside by outer and interior oblique circle spring unit spare, the damping body of being provided with, and the outer fixture upper cover of spring is equipped with the support upper plate, is provided with first buffer board between the damping body and the support upper plate. The radial inclined ring spring is matched with the polytetrafluoroethylene plate with low friction coefficient, so that the displacement compensation in any direction in a radial plane can be realized, and the buffer effect is achieved.
Description
Technical Field
The utility model belongs to the technical field of damping device for the building, a use shock-absorbing support of oblique coil spring is related to.
Background
In the simple beam structure of bridge, building, etc., the damping support is an important structural component for connecting upper structure and lower structure of simple beam, and can reliably transfer the counterforce and deformation (displacement and corner) of upper structure of beam to the lower structure of beam so as to make the actual stress condition of structure conform to the theory of design and calculation, and raise building reliability.
Most of the existing shock absorption supports are rubber shock absorption supports, the inner structure of rubber is a curled long-chain molecular structure, weak secondary force exists among molecules of the rubber shock absorption supports, so that rubber materials show viscoelastic performance, and the rubber shock absorption supports are widely applied to shock insulation and buffering because the rubber has the characteristics of hysteresis, damping and reversible large deformation. In practical engineering application, however, the rubber shock-absorbing support also has great defects and cannot completely meet all requirements of engineering application, 1) in the rubber shock-absorbing support, a main shock-absorbing body is formed by alternately bonding a rubber layer and a steel plate layer, and cannot completely meet engineering requirements in application environments with great rigidity requirements such as bridges, large-scale house buildings and the like, and meanwhile, the process of the rubber support determines that the rigidity of the whole support cannot be increased easily; 2) the elasticity-damping characteristic of the rubber shock absorption support is difficult to control, and specific ideal shock absorption effects can not be realized according to the shock absorption requirements of each stress stage for horizontal shear forces with different sizes in different stages; 3) the pure rubber shock mount still has the possibility of failure under some severe application environments, such as extreme high temperature, inferior nature corruption etc. and has the reliability problem.
In addition, the damping support on the current market is roughly three types, namely a basin type damping support, a ball type damping support and a plate type damping support, wherein the basin type damping support and the plate type damping support cannot realize sliding buffering under the shearing force in the whole circumferential direction in a radial plane, and the plate type damping support can only slide in a one-way or two-way mode in one coordinate direction. The ball chain type damping support can only realize tiny plane sliding, the reliability is poor, the amplitude of the shearing force is small, and the whole support structure is complex.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an use shock mount of oblique circle spring has solved the unable realization of shock mount that exists among the prior art and has slided the buffering problem under the shearing force of arbitrary direction in the radial plane.
The utility model provides an adopted technical scheme is, an use shock mount of oblique coil spring, including the support hypoplastron, be fixed with the annular outer fixture of spring of cavity on the support hypoplastron, the outer fixture of spring is inside by outer and interior oblique coil spring unit, the damping body that is provided with, and the outer fixture upper cover of spring is equipped with the support upper plate, is provided with first buffer board between the damping body and the support upper plate.
The utility model discloses a characteristics still lie in:
the inner wall of the upper plate of the support is provided with a first groove, the first buffer plate is positioned in the first groove, the thickness of the first buffer plate is smaller than the depth of the first groove, and one end of the vibration damping body extends into the first groove.
The inclined ring spring assembly comprises at least one inclined ring spring external member, the plurality of inclined ring spring external members are arranged in an up-down overlapping mode, each inclined ring spring external member comprises two inner clamping devices which are arranged in an up-down symmetrical mode, a first movable partition plate is arranged between the two inner clamping devices, the first movable partition plate and the two inner clamping devices form two cavities respectively, and a first inclined ring spring is placed in each cavity.
The damping device further comprises a second damping plate, and the second damping plate is located between the damping body and the lower plate of the support.
The canted coil spring assembly includes a second canted coil spring.
The oblique spring assembly of circle includes a plurality of second oblique spring of circle, and a plurality of second oblique spring of circle cup joints in proper order, is provided with second movable partition between two adjacent second oblique spring of circle.
A first through hole is formed along the axial direction of the vibration damping body.
The utility model has the advantages that: compared with the existing rubber shock absorption support, the shock absorption support using the inclined ring spring has more stable and effective shock absorption performance, durability and reliability, and can still realize basic shock absorption effect even if a rubber part or other vulnerable parts fail under a more severe application environment; the rigidity change of the inclined coil spring is nonlinear, only small deformation occurs when the force value is small, the deformation is rapidly increased when the force value is large, the inclined coil spring can maintain a force value with almost unchanged size in the deformation process, namely, a constant resilience force can be provided in a specific working interval, and therefore the shock absorption support has good shock absorption performance in different stages; the damping body is bonded with the lower plate of the support, the damping of the rubber block (damping body) and the shear damping of the bonded contact surface are nonlinear, and the stiffness of the inclined ring spring is also nonlinear, i.e. both parts of the spring damping system are nonlinear, different schemes (nonlinear curves) can be designed aiming at different stages of impact vibration, i.e. the damping support suitable for different application environments can be obtained through the analysis design of the inclined ring spring and the rubber, i.e. the damping support has customization; the radial inclined ring spring is matched with the polytetrafluoroethylene plate with low friction coefficient, so that the displacement compensation in any direction in a radial plane can be realized, and the buffer effect is realized; the damping body is sleeved with the radial inclined ring spring, the inclined ring spring is matched with the polytetrafluoroethylene plate, so that the shearing force born by the damping body is not completely borne by the damping body any more, the shearing force indirectly acts on the deformation of the radial inclined ring spring, the sliding of the support lower plate and the second buffer plate, and the displacement compensation realized by the sliding is in any direction in a radial horizontal plane.
Drawings
Fig. 1 is a schematic structural view of a shock-absorbing support using a canted coil spring according to the present invention;
fig. 2 is a cross-sectional view of a shock-absorbing support using a canted coil spring according to the present invention;
fig. 3 is a schematic structural diagram of an embodiment of a shock mount using a canted coil spring according to the present invention;
fig. 4 is a schematic structural view of another embodiment of a shock-absorbing support using a canted coil spring according to the present invention;
FIG. 5 is a force analysis diagram of a single-ring spring of a damping support using a canted-ring spring according to the present invention;
FIG. 6 is a stress analysis diagram of a left and right superposed single-ring spring of a damping support using an inclined ring spring according to the present invention;
FIG. 7 is a force analysis diagram of a whole-circle axial spring of a damping support using an inclined-circle spring according to the present invention;
fig. 8 is a force analysis diagram of a whole-circle radial spring of a damping support using an inclined-circle spring according to the present invention;
fig. 9 is a stiffness characteristic curve diagram of a radial inclined coil spring of a damping support using an inclined coil spring according to the present invention.
In the figure, 1, a lower support plate, 2, an upper support plate, 3, an inclined ring spring assembly, 3-1, a first inclined ring spring, 3-2, a first movable partition plate, 3-3, an inner fixture, 3-4, a second inclined ring spring, 3-5, a second movable partition plate, 4, a damping body, 5, a first buffer plate, 6, a first groove, 7, an outer fixture for a spring, 8, a second buffer plate, 9, a first through hole and 10, a second through hole are formed.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model relates to an use shock mount of oblique coil spring, as shown in figure 1, including support hypoplastron 1, be fixed with the annular outer fixture 7 of spring of cavity on the support hypoplastron 1, as shown in figure 2, the outer fixture 7 of spring is inside by outer and interior be provided with oblique coil spring unit 3, the damping body 4, the recess with first oblique coil spring 3-1 looks adaptation is seted up to the 7 inside walls of the outer fixture of spring, 7 upper covers of the outer fixture of spring are equipped with support upper plate 2, be provided with first buffer board 5 between the damping body 4 and the support upper plate 2. A first through hole 9 is formed along the axial direction of the vibration damping body 4, and a second through hole 10 is formed in the support upper plate 2 and the support lower plate 1 and used for fixing or connecting other structures. First buffer board 5 is the polytetrafluoroethylene board, and the damping body 4 is cylindrical rubber piece, is used for fixed rubber piece with first through-hole 9 of axle penetration. The support upper plate 2 and the support lower plate 1 are both steel plates.
The utility model discloses a damping support includes following two kinds of forms:
axial shock mount:
as shown in fig. 3, the inclined coil spring assembly 3 comprises at least one inclined coil spring kit, a plurality of inclined coil spring kits are arranged in an up-down overlapping manner, each inclined coil spring kit comprises two inner fixtures 3-3 which are arranged in an up-down symmetrical manner, a first movable partition plate 3-2 is arranged between the two inner fixtures 3-3, the first movable partition plate 3-2 and the two inner fixtures 3-3 respectively form two cavities, a first inclined coil spring 3-1 is placed in each cavity, and a groove matched with the first inclined coil spring 3-1 is formed in the inner wall of each inner fixture 3-3. The inner fixture 3-3 at the uppermost end is abutted against the upper plate 2 of the support, and the inner fixture 3-3 at the lowermost end is abutted against the lower plate 1 of the support. First recess 6 has been seted up to 2 inner walls of support upper plate, and first buffer board 5 is located first recess 6, and the thickness of first buffer board 5 is less than the 6 degree of depth of first recess, and the damping body 4 one end is stretched into first recess 6 and is contradicted with first buffer board 5, and support upper plate 2 can rotate around the damping body 4. The inclination angles of the two circles of axial inclined coil springs in each inclined coil spring set are symmetrical.
Radial shock mount:
the inclined ring spring assembly 3 can comprise a second inclined ring spring 3-4, a groove matched with the second inclined ring spring 3-4 is formed in the inner side of an outer spring fixture 7, a first groove 6 is formed in the inner wall of an upper support plate 2 of the inclined ring spring assembly 3, the first buffer plate 5 is located in the first groove 6, the thickness of the first buffer plate 5 is smaller than the depth of the first groove 6, one end of the vibration damping body 4 extends into the first groove 6 to be abutted against the first buffer plate 5, the upper support plate 2 can rotate around the vibration damping body 4, the inclined ring spring assembly further comprises a second buffer plate 8, and the second buffer plate 8 is located between the vibration damping body 4 and a lower support plate 1. The second buffer plate 8 is a teflon plate.
As shown in fig. 4, when the second inclined coil springs 3-4 include a plurality of second inclined coil springs 3-4, the plurality of second inclined coil springs 3-4 are sequentially sleeved, and a second movable partition plate 3-5 is arranged between every two adjacent second inclined coil springs 3-4. The inclination angles of two adjacent circles of radial inclined coil springs are symmetrical.
The utility model relates to an use among the damping support of oblique coil spring atress analysis of first oblique coil spring 3-1 as follows:
first, a single-circle inclined-circle spring is subjected to stress analysis under an ideal condition, namely stress analysis of a special simple support beam, as shown in fig. 5, F is a force in any direction applied to a point B, and F is equivalent to a force Fb1 of a vertical base surface and a force Fb2 of a parallel base surface.
① is parallel to the base surface, Fb2 is the resultant of the compression forces from B point to A, C point (i.e. the resultant of the compression forces of the front and back half circles respectively), it is easy to know that the resultant of the support reaction force of contact point A, C under Fb2 is- Fb 2, and ② is to obtain the stress conditions of A and C points by taking the moments of A and C points for Fb1 respectively.
From ∑ MBWhen the result is 0:
FA+FC＝-Fcos(α)sin(α)
after the single-turn canted coil spring is superimposed left and right, as shown in fig. 6, in an ideal case, the support reaction force of the contact point of the stressed coil under the canted coil spring is-Fcos (α) sin (α). therefore, for the end point a, the component force Fb2 can be considered to be offset with the support reaction force, the component force Fb1 is converted into the elastic potential energy of the canted coil spring, and at point A, C, the support reaction force is provided, that is, the elastic force of the canted coil spring on the rigid body applying the load is Fb1。
The stress condition of the whole circle can be superposed according to the stress of a single-circle inclined ring spring and is divided into a radial inclined ring spring and an axial inclined ring spring, 1) the elastic force of the axial whole-circle inclined ring spring after being loaded is decomposed into an axial component force and a component force vertical to the axial direction (namely in a radial plane), as shown in fig. 7, the axial component force and the tangential component force of the elastic force borne by each single circle are superposed respectively to obtain a concentrated force F '(F' is superposed with the axial line and the direction is opposite to the displacement direction) opposite to the applied force F and a force couple M (the rotating direction of the force couple is the same as the elastic direction of the inclined ring spring); 2) the loaded elastic force of the radial whole circle inclined ring spring is divided into an axial component force and a component force vertical to the axial direction (namely in an axial plane), and as shown in fig. 8, the axial component force and the tangential component force of the elastic force of each single circle are superposed to obtain a concentrated force F' and a force couple M opposite to the applied force F.
As can be known from figure 9, the rigidity change of the inclined coil spring is nonlinear, only small deformation occurs when the force value is small, the deformation is rapidly increased when the force value is large, the spring can maintain a force value with almost unchanged size in the deformation process, namely, a constant resilience force can be provided in the specific working interval, and therefore the shock absorption support has good shock absorption performance in different stages. Its rigidity characteristic has special suitability to the shock attenuation application to make the utility model discloses a damping support has fine damping performance.
The utility model discloses a shock-absorbing support, structural characteristic decide its horizontal plane arbitrary direction's displacement compensation function, and its special suitability as shock attenuation shock isolation device is decided to just uniqueness, and its superior durability is decided to the material characteristic, and shock-absorbing support's structural design decides its whole better shock attenuation for spring damping system.
The utility model relates to an use damping support of oblique coil spring's work engineering as follows:
radial inclined ring spring damping support:
the during operation, support upper plate 2, support hypoplastron 1 respectively with upper and lower exterior structure with rag bolt anchor (or link firmly with other connected mode), when receiving horizontal force and torque, take place relative movement between support upper plate 2, support hypoplastron 1, take place relative rotation between support upper plate 2 and first buffer board 5, assume here that support hypoplastron 1 analyzes for the relatively fixed end, divide into two stages according to the horizontal force size that support upper plate 2 receives: 1) when the horizontal force borne by the upper support plate 2 is small, the horizontal force is transmitted to the second inclined ring springs 3-4 from the upper support plate 2 through the shock absorption bodies 4 (lead core rubber), at the moment, the second inclined ring springs 3-4 are high in rigidity and only slightly deform, and the shock absorption bodies 4 deform greatly to offset the horizontal force; 2) when the horizontal force borne by the upper support plate 2 is large, the horizontal force is transmitted to the second inclined coil springs 3-4 through the shock absorption bodies 4 (lead rubber) by the upper support plate 2, the rigidity of the second inclined coil springs 3-4 is rapidly reduced at the moment, large deformation occurs, meanwhile, the shock absorption bodies 4 are also deformed and slide relative to the second buffer plate 8 to offset the horizontal force, and at the moment, the second inclined coil springs 3-4 and the shock absorption bodies 4 can be regarded as spring damping systems. When a structure generates a corner (a relative movement corner is generated between the support upper plate 2 and an external part connected with the support upper plate 2, the shock absorber 4 (lead-zinc rubber) and the support lower plate 1 due to the action of external force, the polytetrafluoroethylene plate has the characteristics of high lubrication and non-adhesion, the relative rotation between the support upper plate 2, the support lower plate 1 and the shock absorber 4 can be realized, the shock absorber 4 can be regarded as a connecting part, and when the external connecting part rotates or generates stress conditions such as torsion angle and the like, the support upper plate 2 and the first buffer plate 5 rotate to release torque generated by an upper structure. During the earthquake, rigidity antidetonation measure (the utility model discloses a horizontal force that shock mount received is less, the oblique coil spring is very big because the rigidity that its rigidity characteristic corresponded, whole support is visual for the structure of rigid body with the snubber block, rigidity shock attenuation measure promptly) and flexible damping measure (when the horizontal force that shock mount received is very big, the oblique coil spring is very little because the rigidity that its rigidity characteristic corresponds, cooperation polytetrafluoroethylene board is regarded as the flexible body and is produced the deformation of sliding, whole support is visual for the structure of flexible body with the snubber block, flexible shock attenuation measure promptly) take place the effect simultaneously, in order to resist huge earthquake input energy, can guarantee like this on the roof beam, lower structure is reasonable relative displacement, reduce the amplification factor of earthquake power, make the structure keep the uniformity again. The annular structure enables the displacement compensation function in any direction in the horizontal plane.
The damping support of the double-ring radial inclined ring spring is additionally provided with the stressed rotation of the second movable partition plate 3-5, and the circumferential force of the two inclined ring springs is offset by the rotation of the second movable partition plate 3-5.
Axial inclined ring spring damping support:
during operation, support upper plate 2, support hypoplastron 1 are with the rag bolt anchor (or link firmly with other connected mode) for upper and lower exterior structure respectively, when receiving axial force and torque, take place relative movement between support upper plate 2, support hypoplastron 1, take place relative rotation between support upper plate 2 and first buffer board 5, assume here that support hypoplastron 1 is for the analysis of relatively fixed end. When the support upper plate 2 is subjected to an axial force, the axial force is sequentially transmitted to the first buffer plate 5, the shock absorption body 4 (lead core rubber) and the support lower plate 1 from the support upper plate 2, and meanwhile, the axial force is also sequentially transmitted to the upper first inclined coil spring 3-1, the first movable partition plate 3-2, the lower first inclined coil spring 3-1 and the support lower plate 1 from the support upper plate 2, the circumferential force generated by the first inclined coil spring 3-1 when being subjected to the force is offset by the rotation of the first movable partition plate 3-2, the rigidity of the first inclined coil spring 3-1 is changed according to the magnitude of the axial force, the rigidity is large when the axial force is small, the first inclined coil spring 3-1 is only slightly deformed, the rigidity is small when the axial force is large, and the first inclined coil spring 3-1 is greatly deformed to offset the horizontal force; when the mount upper plate 2 receives a torque, the torque is transmitted from the mount upper plate 2 to the first cushion plate 5 and the damper 4, and the torque is released by the rotation of the mount upper plate 2 and the first cushion plate 5.
In this way, the utility model relates to an use damping mount of inclined ring spring, compare with current rubber damping mount, have more stable, effectual damping performance, durability, reliability, under the application environment more abominable, even rubber part or other vulnerable part became invalid, inclined ring spring, support upper plate, support lower plate rigid body still can realize basic cushioning effect; the rigidity change of the inclined coil spring is nonlinear, only small deformation occurs when the force value is small, the deformation is rapidly increased when the force value is large, the inclined coil spring can maintain a force value with almost unchanged size in the deformation process, namely, a constant resilience force can be provided in a specific working interval, and therefore the shock absorption support has good shock absorption performance in different stages; the damping body is bonded with the lower plate of the support, the damping of the rubber block (damping body) and the shear damping of the bonded contact surface are nonlinear, and the stiffness of the inclined ring spring is also nonlinear, i.e. both parts of the spring damping system are nonlinear, different schemes (nonlinear curves) can be designed aiming at different stages of impact vibration, i.e. the damping support suitable for different application environments can be obtained through the analysis design of the inclined ring spring and the rubber, i.e. the damping support has customization; the radial inclined ring spring is matched with the polytetrafluoroethylene plate with low friction coefficient, so that the displacement compensation in any direction in a radial plane can be realized, and the buffer effect is realized; the damping body is sleeved with the radial inclined ring spring, the inclined ring spring is matched with the polytetrafluoroethylene plate, so that the shearing force born by the damping body is not completely borne by the damping body any more, the shearing force indirectly acts on the deformation of the radial inclined ring spring, the sliding of the support lower plate and the second buffer plate, and the displacement compensation realized by the sliding is in any direction in a radial horizontal plane.
The utility model discloses a damping support can use simultaneously with shock attenuation parts such as other rubber shock absorber pieces, and rubber shock absorber piece glues with epoxy at case beam-ends portion, and damping support is on the stone pad, with grout volume, rag bolt anchor, and the damping body 4 can reduce the collision harm between the case roof beam, and damping support can transmit the bridge floor load and play the buffering shock attenuation simultaneously.
Claims (7)
1. The damping support using the inclined ring springs is characterized by comprising a support lower plate (1), wherein hollow annular spring outer clamping devices (7) are fixed on the support lower plate (1), inclined ring spring assemblies (3) and damping bodies (4) are arranged inside the spring outer clamping devices (7) from outside to inside, a support upper plate (2) is arranged on an upper cover of the spring outer clamping devices (7), and a first buffer plate (5) is arranged between the damping bodies (4) and the support upper plate (2).
2. The shock absorption support using the inclined coil spring as claimed in claim 1, wherein a first groove (6) is formed in an inner wall of the support upper plate (2), the first buffer plate (5) is located in the first groove (6), the thickness of the first buffer plate (5) is smaller than the depth of the first groove (6), and one end of the shock absorption body (4) extends into the first groove (6).
3. The shock absorbing support using the inclined coil spring as claimed in claim 1 or 2, wherein the inclined coil spring assembly (3) comprises at least one inclined coil spring set, a plurality of inclined coil spring sets are arranged in an up-and-down stacked manner, each inclined coil spring set comprises two inner fixtures (3-3) which are symmetrically arranged up and down, a first movable partition plate (3-2) is arranged between the two inner fixtures (3-3), the first movable partition plate (3-2) and the two inner fixtures (3-3) form two cavities respectively, and a first inclined coil spring (3-1) is placed in each cavity.
4. A shock-absorbing support using inclined coil springs as claimed in claim 2, further comprising a second damping plate (8), wherein said second damping plate (8) is located between the damping body (4) and the support lower plate (1).
5. A shock mount using canted coil springs according to claim 4 wherein the canted coil spring assembly (3) includes a second canted coil spring (3-4).
6. The shock mount using the inclined coil spring as claimed in claim 4, wherein the inclined coil spring assembly (3) comprises a plurality of second inclined coil springs (3-4), the plurality of second inclined coil springs (3-4) are sequentially sleeved, and a second movable partition plate (3-5) is disposed between two adjacent second inclined coil springs (3-4).
7. The shock mount using the inclined coil spring as claimed in claim 1, wherein a first through hole (9) is formed along the axial direction of the damping body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921151459.6U CN210856915U (en) | 2019-07-22 | 2019-07-22 | Damping support using inclined ring spring |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921151459.6U CN210856915U (en) | 2019-07-22 | 2019-07-22 | Damping support using inclined ring spring |
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| CN210856915U true CN210856915U (en) | 2020-06-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033052A (en) * | 2021-12-03 | 2022-02-11 | 广东博竣建设工程有限公司 | House upper laminated rubber shock insulation structure and construction process |
| CN114892800A (en) * | 2022-04-20 | 2022-08-12 | 山东建筑大学 | Assembled beam-column joint damping structure and construction method |
-
2019
- 2019-07-22 CN CN201921151459.6U patent/CN210856915U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033052A (en) * | 2021-12-03 | 2022-02-11 | 广东博竣建设工程有限公司 | House upper laminated rubber shock insulation structure and construction process |
| CN114892800A (en) * | 2022-04-20 | 2022-08-12 | 山东建筑大学 | Assembled beam-column joint damping structure and construction method |
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Effective date of registration: 20220629 Address after: 710000 No. 40, Hangkong 3rd road, National Aviation high tech industrial base, Xi'an, Shaanxi Patentee after: Xi'an Yiji Technology Co.,Ltd. Address before: 710048 Shaanxi province Xi'an Beilin District Jinhua Road No. 5 Patentee before: XI'AN University OF TECHNOLOGY |
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