WO2017202302A1 - Dispositif d'isolation et de réduction de vibration de vis - Google Patents

Dispositif d'isolation et de réduction de vibration de vis Download PDF

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Publication number
WO2017202302A1
WO2017202302A1 PCT/CN2017/085526 CN2017085526W WO2017202302A1 WO 2017202302 A1 WO2017202302 A1 WO 2017202302A1 CN 2017085526 W CN2017085526 W CN 2017085526W WO 2017202302 A1 WO2017202302 A1 WO 2017202302A1
Authority
WO
WIPO (PCT)
Prior art keywords
screw
elastic
adjusting member
height adjusting
thread
Prior art date
Application number
PCT/CN2017/085526
Other languages
English (en)
Chinese (zh)
Inventor
岳渠德
杭志远
Original Assignee
江苏远兴环保科技有限公司
岳渠德
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 江苏远兴环保科技有限公司, 岳渠德 filed Critical 江苏远兴环保科技有限公司
Publication of WO2017202302A1 publication Critical patent/WO2017202302A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/3207—Constructional features
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/36—Special sealings, including sealings or guides for piston-rods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2222/00—Special physical effects, e.g. nature of damping effects
    • F16F2222/08—Inertia
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2222/00—Special physical effects, e.g. nature of damping effects
    • F16F2222/12—Fluid damping

Definitions

  • the invention belongs to the field of vibration and noise reduction, and is used for weakening various ground vibrations caused by vibration and earthquake caused by rail transit, vibration equipment and other equipment, construction (such as blasting), vibration equipment and other equipment. Damper.
  • the damper technology provides vibration and noise reduction by providing an elastic damper in the vibration-isolating structure to be detached to separate the structure from the foundation.
  • the conventional damper needs to use a jack and cooperate with the heightening gasket to raise the structure.
  • This method is not only complicated in operation, slow in construction, but also has poor precision, especially only in the case of Stepped height adjustment has been carried out within the size range of the gasket, and the height cannot be continuously adjusted steplessly.
  • the gasket is prone to offset, damage, deformation and the like after use in the long crucible, wherein, in order to avoid the mat If the sheet is offset, an additional device for preventing the offset is required, which makes the structure more complicated and difficult to operate.
  • the damper has a large size and a large space, which is not conducive to the uniform force of the vibration-isolating structure to be damped, and is not conducive to cost reduction and is not conducive to transportation.
  • the present invention provides a screw vibration isolating vibration isolator that can be stepless
  • the height is increased, and the lifting is quick and simple, the operation is convenient, and the volume is smaller and the vibration damping effect is better.
  • a screw vibration isolating vibration absorber having a first end and a second end, the first end and the second end being elastically compressible, comprising:
  • a threaded ferrule as a first end or connected to the first end, providing elastic support for the structure to be damped, having an internal thread
  • an elastic inner cylinder which is provided as a second end or connected to the second end, is disposed on the base member, and has an elastic member and a screw height adjusting member, and the elastic member is disposed under the screw height adjusting member and elastically supporting the screw adjusting member
  • the screw height adjusting member has an external thread screwed with the internal thread of the threaded ferrule, and the screwing depth of the elastic inner cylinder body in the threaded ferrule is adjusted by rotating the screw height adjusting member or rotating the elastic inner cylinder body, thereby realizing the screw reduction
  • the vibration isolators are steplessly adjusted to the height of the struts of the vibration-damping structure.
  • the side of the screw height adjusting member near the first end, that is, the top side is provided with a screwing portion
  • the screwing portion is in the form of a counterbore disposed on the top side of the screw adjusting member.
  • the counterbore may have a square, a straight shape, a cross shape or a hexagonal cross section. This structural arrangement not only makes the structure more compact, but also helps to reduce the overall volume, and is convenient for production processing and construction operations.
  • the connecting/positioning portion of the connecting/positioning elastic member is disposed on a side of the screw adjusting member near the second end, that is, the bottom side.
  • a stud is provided, and the coil spring can be sleeved and fixed to the stud.
  • the outer peripheral wall of the screw height adjusting member is provided with a ring groove or a side near the second end is provided with a reduced diameter portion.
  • the outer peripheral wall surface of the threaded ferrule has a connection structure of a concave-convex structure for connection with the structure to be damped.
  • Specific forms include threads, projections, and fins. It is preferably an external thread, or a helical projection, or a helical fin.
  • the threaded ferrule can be directly embedded in the concrete, and the joint strength of the two can be improved by the concave-convex structure, so that the overall structure is more stable.
  • the threaded ferrule is a nylon ferrule.
  • the elastic member includes a mechanical elastic structure, a hydraulic elastic structure, a mechanical elastic structure and a damping liquid phase structure, such as a coil spring, a disc spring, a spring piece, an oak Pads, polyester pads, polyurethane pads, composite pads, damping parts.
  • a damping liquid phase structure such as a coil spring, a disc spring, a spring piece, an oak Pads, polyester pads, polyurethane pads, composite pads, damping parts.
  • the screw vibration isolators further include a sealing cover detachably disposed on a side of the threaded ferrule adjacent to the first end, and the elastic inner cylinder can be sealed to the threaded ferrule Inside.
  • the sealing cover detachably disposed on a side of the threaded ferrule adjacent to the first end, and the elastic inner cylinder can be sealed to the threaded ferrule Inside.
  • the weather resistance of the damper can be improved and the service life can be extended.
  • it is screwed to the threaded ferrule.
  • the thread can be in the form of a thread corresponding to the internal thread of the threaded ferrule, which is convenient for processing and construction.
  • the thread (including the internal thread of the threaded ferrule, the external thread of the inner cylinder, the external thread of the inner cylinder, the external thread of the sealing cover) includes a rectangular thread, a trapezoidal thread, a triangle Threaded, zigzag thread or special shape thread.
  • the bottom cylinder, the elastic member and the screw height adjusting member are integrally formed.
  • the bottom cylinder can be used as the second end of the screw vibration isolating vibration isolator.
  • the arrangement of the bottom cylinder makes the damper as a whole more compact, which is convenient for transportation, construction, etc. Moreover, it can make the damper more stable, and can also improve the weather resistance of the damper and prolong its service life.
  • the elastic member is pre-compressed between the bottom cylinder and the screw height adjusting member.
  • the pre-compression described here includes pre-compression before production or pre-installation, and pre-compression after installation.
  • the elastic inner cylinder further has a connecting rod through which the elastic member is pre-compressed between the bottom cylinder and the screw height adjusting member.
  • the pre-compression described herein refers to the pre-compression of the production crucible or prior to installation.
  • the connecting rod passes through the screw height adjusting member, the elastic member and the bottom cylinder in sequence.
  • an end of the connecting rod near the bottom barrel is provided with an outer flange, and an end of the connecting rod close to the screw adjusting member is provided with a pressing member, and the two are matched to pre-compress the elastic member to the screw adjusting Between the high piece and the bottom tube.
  • the bottom cylinder of the elastic inner cylinder, the elastic member, and the screw height adjusting member can be integrally formed.
  • the outer flange of the connecting rod may be embedded in a recess fixed to the outer side of the bottom wall of the bottom cylinder, for example, the connecting rod may be welded to the bottom barrel.
  • a flat surface is formed on the outer side of the bottom wall of the bottom cylinder.
  • the pressing member includes a nut and a pin
  • the connecting rod is provided with a nut for screwing Stud section and pin hole for the pin.
  • the pin hole is disposed at the outer end, and the pin forms a limit on the screw after the screw to prevent it from loosening.
  • the structure of the nut and the pin can also make the structure of the damper more compact under the premise of ensuring structural stability.
  • the connecting rod and the pressing member are disposed in the counterbore formed by the screwing portion of the screw adjusting member, so that the structure of the damper is more compact, and the volume thereof is further reduced.
  • the bottom cylinder has an accommodating space surrounded by the bottom wall and the side wall, and the elastic member is integrally or partially disposed in the accommodating space.
  • a damping agent is disposed in the accommodating space of the bottom cylinder, and the elastic member is wholly or partially immersed in the damper.
  • the damper absorbs vibrations, making it more effective.
  • the bottom barrel is connected to the screw height adjusting member at an elastic sealing structure or a moving seal so that the two are kept in a sealed state during relative movement.
  • the elastic member and the damping agent are in a sealed state, which can avoid the leakage of the damper and improve the weather resistance of the elastic member.
  • the bottom barrel is connected to the screw height adjusting member at a joint to prevent relative rotation of the two.
  • the elastic inner cylinder forms a stable whole.
  • a guiding structure is disposed between the bottom cylinder and the screw height adjusting member. It can avoid the phenomenon of tilting, deflection, etc., which is beneficial to improve the vertical damping effect.
  • the side of the side wall away from the bottom wall has a plurality of longitudinal grooves.
  • the side of the screw height adjusting member adjacent to the elastic member is provided with a plurality of longitudinal relief structures.
  • the screw height adjusting member is adjacent to the reduced diameter portion of one side of the elastic member, and is provided with a plurality of detachable protrusions, and the side of the side wall of the protrusion and the bottom tube away from the bottom wall The longitudinal grooves are matched.
  • the bottom cylinder is provided with a connection/positioning portion for connecting/positioning the elastic members.
  • the positioning portion is a boss disposed at a middle portion of the inner side of the bottom wall.
  • One end of the coil spring can be directly sleeved and fixed to the boss.
  • the bottom cylinder is provided with a through hole penetrating through the boss of the bottom wall and the inner middle portion of the bottom wall for the connecting rod to be pierced.
  • the screw height adjusting member is provided with a through hole penetrating through the top and bottom sides of the screw for the connecting rod to be pierced.
  • the screw height adjusting member includes two upper and lower portions that are separated from each other, and the external thread is disposed at the upper portion, and when the rotating screw is adjusted to the upper portion, only the upper portion is rotated.
  • the beneficial effects of the present invention are: the screw vibration isolators of the present invention, through the screw-type structure of the threaded ferrule and the elastic inner cylinder thread, so that the stepless adjustment of the overall height of the damper can be realized
  • the invention solves the defects that the damper in the prior art cannot adjust the height steplessly; moreover, the structure of the threaded fit makes the structure more stable, and avoids the defect that the gasket in the prior art will deflect during use. Further, in the present invention, since there is no deflection problem, the structure for preventing deflection in the prior art can be omitted, and the overall structure thereof can be further simplified.
  • the screw vibration isolators of the present invention are compared with The existing damper can achieve the same or better expected effect with a smaller volume, so that it not only saves material, but also requires less installation space and wider application range; moreover, due to the vibration reduction of the present invention
  • the device can be steplessly adjusted and the volume is smaller, so that the force of the structure to be damped is more uniform, and a better vibration damping effect can be achieved; Screw vibration isolators invention, which is screwed to increase more as not only easy to install, and its subsequent further adjustment / maintenance easier to perform.
  • FIG. 1 is a schematic structural view of a damper according to an embodiment of the present invention.
  • FIG. 2 is a schematic view showing the structure of a threaded ferrule with internal and external threads in the damper according to an embodiment of the present invention.
  • FIG. 3 is a partial schematic view showing the internal and external threads of the threaded ferrule in the damper according to the embodiment of the present invention
  • FIG. 4 is a schematic structural view of an inner cylinder of a damper according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural view of a screw height adjusting member of an inner cylinder of a damper according to an embodiment of the present invention
  • FIG. 6 is a plan view of an inner cylinder of a damper according to an embodiment of the present invention.
  • FIG. 7 is a bottom view of an inner cylinder of a damper according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural view of a bottom cylinder of a damper according to an embodiment of the present invention.
  • FIG. 9 is a plan view of a bottom cylinder of a damper according to an embodiment of the present invention. [0049] FIG.
  • FIG. 10 is a schematic structural view of a sealing cover of a damper according to an embodiment of the present invention.
  • FIG. 11 is a plan view of a damper according to an embodiment of the present invention
  • 12 is a schematic view showing the installation of a damper according to an embodiment of the present invention (wherein a is before adjusting the jacking or before a predetermined position, and FIG. b is after adjusting the jacking to a predetermined position or during the jacking process)
  • Figure c is the adjustment of the top lift to the predetermined position and install the sealing cover);
  • FIG. 13 is a schematic view showing the installation of the damper according to an embodiment of the present invention (the outer ring and the screw thread are matched with a rectangular thread);
  • FIG. 14 is a schematic structural view of a damper according to an embodiment of the present invention.
  • a screw vibration isolating isolators according to an embodiment of the present invention have a first end and a second end.
  • the first end and the second end are elastically compressible, and include:
  • Threaded ferrule 1 as a first end providing resilient support for the structure to be damped (in other embodiments)
  • the threaded ferrule 1 can also be connected to the connecting piece as the first end of the screw vibration isolators, which has an internal thread 11;
  • the elastic inner cylinder is provided as a second end to the base material (in another embodiment, the elastic inner cylinder body may also be connected to the connecting member as the second end of the screw vibration isolators), which has a bottom
  • the elastic member 3 and the screw adjusting member 2 supported by the elastic member 3 are elastically supported under the screw adjusting member 2 in the embodiment, that is, the elastic member 3 is elastically supported on the bottom cylinder 4 and the screw adjusting device
  • the screw height adjusting member 2 has an external thread 21 screwed with the internal thread 11 of the threaded ferrule 1
  • the elastic inner cylinder is adjusted in the threaded ferrule by rotating the screw adjusting member 2 or the elastic inner cylinder
  • the screwing depth in 1 realizes the stepless adjustment of the jacking height of the vibration damping structure to the vibration damping structure.
  • the threaded ferrule 1 may be in the form of a ferrule.
  • the invention is not limited thereto, but may be in any alternative form.
  • the threaded ferrule 1 can be made of nylon material.
  • the invention is not limited thereto, and may be any material that can meet engineering requirements, such as: metal materials such as steel, composite materials such as rubber, polyester, polyurethane, and other materials.
  • the internal thread 11 of the threaded ferrule 1 can be any form of thread, such as a rectangular thread (shown in Figure 13), a trapezoidal thread (shown in Figure 3), a triangular thread, a zigzag thread or other special shaped thread.
  • the outer peripheral wall surface of the threaded ferrule 1 has a connection structure of a concave-convex structure for connection with the structure to be damped.
  • the relief structure include threads, protrusions, fins.
  • the external thread 12 shown in Fig. 2 may also be a rectangular thread, a trapezoidal thread, a triangular thread, a zigzag thread or other special shape thread), or may be a plurality of protrusions (such as Spiral protrusion), or a number of fins
  • the threaded ferrule 1 can be directly embedded in the concrete, and the contact area of the concrete can be increased by the concave-convex structure to improve the joint strength of the two, so that the concrete concrete can be poured, which can better bond with the concrete, so that the whole The structure is more stable.
  • the concave-convex structure adopts a thread form ⁇ , which not only can improve the joint strength, but also can transmit the force substantially non-destructively through the thread structure, thereby contributing to the improvement of the overall vibration damping effect of the damper.
  • the elastic member 2 includes a mechanical elastic structure or a hydraulic elastic structure or a structure in which a mechanical elastic structure is combined with a damping liquid phase, such as a coil spring, a disc spring, a spring piece, a rubber pad, a polyester pad, a polyurethane pad, a composite Material mat, damping member.
  • a damping liquid phase such as a coil spring, a disc spring, a spring piece, a rubber pad, a polyester pad, a polyurethane pad, a composite Material mat, damping member.
  • coil springs will be described as an example in the following embodiments.
  • the screw height adjusting member 2 (which may be made of a metal material such as steel, a composite material such as nylon, rubber, polyester, or polyurethane, or the like, and other materials) is adjacent to the first end.
  • the side that is, the top side, is provided with a screwing portion for the external tool to rotate the screw height adjusting member 2 or the elastic inner cylinder body.
  • the screwing portion is in the form of a counterbore 22 disposed on the top side of the screw height adjusting member 2 (as shown in FIG. 5).
  • the counterbore 22 may have a square, a cross, a cross or a cross. Angle (as shown in Figure 6). This structural arrangement not only makes the structure more compact, but also helps to reduce the overall volume, and is also convenient for production processing and construction operations.
  • the connecting/positioning portion of the connecting/positioning elastic member 3 is provided on the side of the screw height adjusting member 2 near the second end, that is, the bottom side.
  • the connecting/positioning portion of the connecting/positioning elastic member 3 is provided on the side of the screw height adjusting member 2 near the second end, that is, the bottom side.
  • it is arranged in the form of a stud 25, and one end of the coil spring can be sleeved and fixed to the stud 25.
  • the bottom cylinder 4 is also provided with a connection/positioning portion for connecting/positioning the elastic members 3.
  • the positioning portion is provided as a boss 44 provided at the inner side of the inner side of the bottom wall 42.
  • One end of the coil spring can be directly sleeved and fixed to the boss 44.
  • the bottom tube 4 has an accommodating space 40 defined by the bottom wall 42 and the side wall 41.
  • the elastic member 3 is integrally or partially disposed in the accommodating space 40.
  • a damping unit 1J9 (which may be a high viscosity damping fluid such as silicone oil or methyl silicone oil) may be disposed in the accommodating space 40 of the bottom cylinder 4, and The elastic member 3 is wholly or partially immersed in the damper 9, whereby the damping force of the damper is provided by the elastic member 3 and the damper 9.
  • the elastic member 3 When the upper load is transmitted, the elastic member 3 will produce a corresponding deformation to provide a damping force, and in addition to providing a damping force, the damping agent 9 can also absorb the vibration energy, and the vibration-isolating structure to be vibration-damped is excited by the exciting force.
  • the damper generates inertial force to react to the vibration-isolating structure to be counteracted, cancels the input excitation force, and reduces the vibration response of the structure.
  • the vibration-isolating structure is to be damped.
  • the vibration will be weakened quickly, avoiding the fatigue damage caused by frequent vibration of the vibration-isolating isolation structure, and greatly prolonging the service life of the vibration-isolating isolation structure, that is, the damping agent 9 can absorb the vibration characteristics, so that Its damping effect can be better.
  • the bottom cylinder 4 is connected with the screw height adjusting member 2 at an elastic sealing structure (for example, an elastic material sealing ring) or a moving seal so that the two are in relative movement. Keep it sealed. Thereby, the elastic member 3 and the damper 9 are in a sealed state, which can avoid leakage of the damper and improve the weather resistance of the elastic member 3.
  • an elastic sealing structure for example, an elastic material sealing ring
  • a moving seal so that the two are in relative movement. Keep it sealed.
  • the elastic member 3 and the damper 9 are in a sealed state, which can avoid leakage of the damper and improve the weather resistance of the elastic member 3.
  • a guiding structure is further provided between the bottom cylinder 4 and the screw height adjusting member 2.
  • the side of the side wall 41 away from the bottom wall 42 has a plurality of longitudinal grooves 43 (see FIGS. 8 and 9).
  • the side of the screw height adjusting member 2 adjacent to the elastic member 3 is provided with a plurality of longitudinal concave-convex structures, and cooperates with the longitudinal grooves 43 of the bottom cylinder 4 to serve as a guide.
  • the outer peripheral wall of the screw height adjusting member 2 is provided with an external thread 21, and a light rod portion 23 having a relatively small outer diameter, for example, a light rod near the side of the elastic member 3.
  • the segment 23 is provided with a plurality of detachable bumps 26 (four in the circumferential direction uniformly arranged in this embodiment), and the bumps 26 are detachably connected to the end of the screw adjusting member 2 near the elastic member 3 by screws.
  • a ring groove is formed between the projection 26 and the external thread 21.
  • the guiding structure makes the supporting structure of the upper part of the damper in the working raft, the lower part of the screw adjusting piece 2 is caught in the bottom tube 4, so that the sliding can not be rotated, thereby avoiding the height adjustment of the bottom tube 4 and the screw Relative between pieces 2
  • the rotation therefore, not only makes the elastic inner cylinder as a whole more stable, but also makes the connection between the damper and the structure to be damped (such as a floating plate) more reliable.
  • the bottom cylinder 4, the elastic member 3, and the screw height adjusting member 2 of the elastic inner cylinder may be integrally formed, for example, the bottom cylinder 4 may be As the second end of the screw damping isolator (as shown in Figure 4), the elastic inner cylinder is made in one piece so that the damper is more compact as a whole, which is convenient for transportation, construction, etc., and it can make the damper It is more stable and can improve the weather resistance of the shock absorber and prolong its service life.
  • the elastic member 3 can be pre-compressed between the bottom cylinder 4 and the screw height adjusting member 2.
  • the elastic member 3 is pre-compressed in the production of the damper or the inner cylinder, and of course, it may be pre-compressed before installation, or may be pre-compressed by the structure to be damped after installation.
  • the elastic inner cylinder can be pre-compressed between the bottom cylinder 4 and the screw height adjusting member 2 via a connecting rod 5.
  • the specific structure may be the structural form shown in FIG. 4.
  • the screw height adjusting member 2 is provided with a through hole 24 extending through the top and bottom sides of the boss 25, and the bottom tube 4 is provided through the bottom wall 42 and the inner middle portion of the bottom wall 42.
  • the through hole 45 of the boss 44, the connecting rod 5 sequentially passes through the screw adjusting member 2, the elastic member 3 and the bottom tube 4, and an outer flange is provided at an end of the connecting rod 5 near the bottom tube 4, which is adjacent to the screw adjusting member 2.
  • a pressing member is provided at one end, and the elastic member 3 is pre-compressed between the screw adjusting member 2 and the bottom cylinder 4 by the cooperation of the two.
  • the bottom cylinder 4, the elastic member 3, and the screw height adjusting member 2 of the elastic inner cylinder can be made one by one.
  • This kind of setting method makes the damper of the invention can be assembled and assembled, and the replacement parts can be separately repaired.
  • the connecting rod 5 and the pressing member are disposed in the counterbore formed by the screwing portion of the screw adjusting member 2, so that the structure of the damper is more compact, and the volume thereof is further reduced.
  • the outer flange of the connecting rod 5 can be embedded in a recess fixed to the outer side of the bottom wall 42 of the bottom cylinder 4, for example, the connecting rod 5 can be weldedly connected to the bottom cylinder 4.
  • a flat surface is formed outside the bottom wall 42 of the bottom cylinder 4.
  • the pressing member includes a nut 6 and a pin 7, and the connecting rod 5 is provided with a stud segment into which the nut 6 is screwed and a pin hole through which the pin 7 is inserted.
  • the pin hole is provided at the outer end, and the pin 7 forms a limit on the screwed nut 6 to prevent it from coming loose.
  • the structure of the nut 6 and the pin 7 also allows the structure of the damper to be more compact while ensuring structural stability.
  • the screw vibration isolators further include a sealing cover 8 detachably disposed on a side of the threaded ferrule 1 near the first end, and the elastic inner cylinder can be sealed to the thread Inside the ferrule 1. Pass through The setting of the cover 8 can improve the weather resistance of the damper and prolong its service life.
  • the sealing cover 8 is provided with an external thread 81 corresponding to the internal thread 11 of the threaded ferrule 1.
  • the outer thread 81 can be in the form of a thread corresponding to the internal thread 11 of the threaded ferrule 11 (including a rectangular thread, a ladder thread, a triangular thread, a zigzag thread or a special shape thread), which is convenient for manufacturing and construction.
  • the sealing cover 8 is provided with an outer flange 82.
  • the sealing cover 8 is also provided with a cross counterbore 83 (see Fig. 11).
  • the screw type damper of the present invention can be used for reducing vibration and earthquake caused by rail traffic, vibration equipment and other equipment, construction (such as blasting), ground motion caused by vibration equipment and other equipment, and the like. It can be applied to rail transit floating slab track, slab track, integral track bed, bridge, depot property, etc. It is also applicable to vibration isolation of nuclear power plants, as well as hospitals, kindergartens, laboratories, precision instruments, factories, equipment, Vibration and vibration isolation of buildings (including high-rise buildings) and other structures.
  • the threaded ferrule 1 (for example, a nylon ferrule) is first embedded in the track floating plate, and after the threaded ferrule 1 completes the concrete pouring and reaches the design required strength, the elastic inner cylinder is installed on the nylon.
  • the spring is compressed by a special tooling device to screw the screw heightening member 2, and the rail floating plate is raised to the design height by the reaction force of the spring.
  • the rotating rod of the special tooling device is caught in the screw In the counterbore 22 of the high member 2, the starting power unit screws the screw height adjusting member 2 into the rail floating plate, and raises the rail floating plate to the design height by the reaction force generated by the compression of the elastic member.
  • the elastic inner cylinder when the screw adjusting device is rotated to adjust the height, the elastic inner cylinder may be rotated as a whole, or only the screw adjusting member in the elastic inner cylinder may be rotated, and the elastic inner cylinder is in the inner cylinder.
  • the other components do not rotate or rotate synchronously with each other.
  • the screw height adjustment member includes two upper and lower portions that are separated from each other, and the external thread is disposed at the upper portion, and when the rotary screw is adjusted to the upper portion, only the upper portion is rotated.
  • the screw vibration isolators of the present invention through the improvement of the above structure, enable the present invention to achieve stepless height adjustment without using a gasket, and the damper of the present invention has a stepless height adjustment.
  • the height adjustment function can be applied to a variety of thicknesses such as floating panels, track beds, bridges, buildings (high-rise buildings) and the like.
  • the structural design of the vibration isolating vibration isolator of the invention (especially using a coil spring ⁇ ) makes it have a certain rigidity in both vertical and lateral directions, which is beneficial to ensure that the structure to be damped (such as a floating plate) is in all directions
  • the stability and damping effects above are all expected, that is, the invention can be used in vertical applications in different applications.
  • the screw vibration isolators of the present invention have a small volume, the holes of the vibration-isolating structure to be damped can be reduced, so that they can be densely dispersed in the vibration-isolating structure to be damped (for example, uniformly arranged in the track)
  • the outer or inner or inner and outer plum blossoms are arranged to make the force more uniform and more integral, thus improving the bending rigidity and strength.
  • the invention since the invention has the advantages of small volume and stepless height adjustment, it can save materials, broaden the scope of application, and is easier to process and manufacture, and has economic benefits and environmental benefits without affecting the vibration isolation effect.
  • the screwing and jacking installation method is simple in operation and reliable in effect, and provides more options for vibration and noise reduction control of the vibration-isolating isolation structure, and has broad application prospects.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

L'invention concerne un dispositif d'isolation et de réduction de vibration de vis, dans lequel dispositif une compression est susceptible d'être réalisée entre une première extrémité et une seconde extrémité du dispositif. Le dispositif comprend : une virole filetée, jouant le rôle de première extrémité ou reliée à la première extrémité ; et un fût élastique interne, jouant le rôle de seconde extrémité ou relié à la seconde extrémité. La virole filetée procure un support élastique à une structure nécessitant une réduction des vibrations et comporte un filetage interne. Le fût élastique interne est placé sur un socle et comporte un élément d'ajustement de hauteur de boulon et un élément élastique supportant élastiquement la partie inférieure de l'élément d'ajustement de hauteur de boulon. L'élément d'ajustement de hauteur de boulon comporte un filetage externe vissé sur le filetage interne de la virole filetée. La profondeur de vissage du fût élastique interne dans la virole filetée est ajustée par rotation de l'élément d'ajustement de hauteur de boulon ou du fût élastique interne, de telle sorte que l'ajustement sans à-coups de la hauteur de levage de la structure nécessitant une réduction des vibrations est effectué à l'aide du dispositif de réduction et d'isolation des vibrations de vis. Le dispositif d'isolation et de réduction de vibration de vis peut effectuer un ajustement de hauteur sans à-coups, le levage du dispositif d'isolation et de réduction de vibration de vis est rapide et facile, les opérations sont pratiques, et le dispositif d'isolation et de réduction de vibration de vis est de taille plus petite et présente un meilleur effet de réduction des vibrations.
PCT/CN2017/085526 2016-05-27 2017-05-23 Dispositif d'isolation et de réduction de vibration de vis WO2017202302A1 (fr)

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CN111734765A (zh) * 2020-05-22 2020-10-02 韩锦桐 一种变刚度橡胶阻尼减振器
CN114635318A (zh) * 2022-03-21 2022-06-17 株洲时代新材料科技股份有限公司 一种轨道浮置板隔振器

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