CN113202896A - Composite vibration-damping and impact-resisting device and vibration-damping method for metal rubber and elastic daub - Google Patents

Composite vibration-damping and impact-resisting device and vibration-damping method for metal rubber and elastic daub Download PDF

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Publication number
CN113202896A
CN113202896A CN202110646346.9A CN202110646346A CN113202896A CN 113202896 A CN113202896 A CN 113202896A CN 202110646346 A CN202110646346 A CN 202110646346A CN 113202896 A CN113202896 A CN 113202896A
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China
Prior art keywords
damping
metal rubber
bearing seat
piston rod
elastic
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Pending
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CN202110646346.9A
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Chinese (zh)
Inventor
吴乙万
程湖
白鸿柏
朱亮
王玮
訾宝
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Fuzhou University
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Fuzhou University
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Priority to CN202110646346.9A priority Critical patent/CN113202896A/en
Publication of CN113202896A publication Critical patent/CN113202896A/en
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    • 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
    • F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
    • F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
    • F16F13/22—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper characterised by comprising also a dynamic damper
    • 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
    • F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
    • F16F13/26—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper characterised by adjusting or regulating devices responsive to exterior conditions
    • F16F13/28—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper characterised by adjusting or regulating devices responsive to exterior conditions specially adapted for units of the bushing type
    • 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
    • F16F9/30—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium with solid or semi-solid material, e.g. pasty masses, as damping medium
    • F16F9/303—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium with solid or semi-solid material, e.g. pasty masses, as damping medium the damper being of the telescopic type
    • 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
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • 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
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • F16F9/3405—Throttling passages in or on piston body, e.g. slots
    • 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
    • F16F9/362—Combination of sealing and guide arrangements 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
    • 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
    • F16F9/369—Sealings for elements other than pistons or piston rods, e.g. valves
    • 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
    • F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
    • F16F9/437—Drainage arrangements
    • 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
    • F16F2222/04—Friction
    • 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
    • F16F2222/10—Adhesion
    • 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
    • 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
    • F16F2238/00—Type of springs or dampers
    • F16F2238/02—Springs
    • F16F2238/022—Springs leaf-like, e.g. of thin, planar-like metal

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

Abstract

The invention relates to a composite vibration-damping and impact-resisting device of metal rubber and elastic daub and a vibration-damping method, comprising a mounting seat, an elastic daub damping piece, a metal rubber damping piece, an outer cylinder and a bearing seat, wherein the mounting seat seals the left end of the outer cylinder, the bearing seat penetrates out from the right end of the outer cylinder, the elastic daub damping piece and the metal rubber damping piece are arranged in the outer cylinder from inside to outside, the force generated by impact is applied on the bearing seat, the bearing seat is simultaneously transmitted to the metal rubber damping piece and the elastic daub damping piece, the metal rubber damping piece and the elastic daub damping piece are deformed by force to generate damping force, when a piston rod structure is subjected to pressure and generates relative reciprocating motion with a hydraulic cavity of the inner cylinder, a pressure difference exists between the left side and the right side of a piston in the hydraulic cavity, so that daub material flows between the left side and the right side of the piston through a piston gap and a throttling metal rubber ring in a throttling hole, thereby generating a damping force.

Description

Composite vibration-damping and impact-resisting device and vibration-damping method for metal rubber and elastic daub
Technical Field
The invention belongs to the fields of vibration reduction and buffering technologies and the like, and particularly relates to a composite vibration reduction and impact resistance device and a vibration reduction method for metal rubber and elastic daub.
Background
The shock absorber is an essential device for reducing shock and vibration. In the civil field, the requirements of people on comfort and safety are met, and the high-performance buffer and the elements thereof play an extremely important role in the fields of railway vehicles, engineering machinery, bridge buildings, aerospace equipment and the like. In the military field, weapon power and hit rate are the basis, but the extremely severe living environment makes it need the buffer to absorb the energy that high strength impact produced, improves equipment vitality, and how to reduce the impact to naval vessel equipment, artillery firearms, missile launcher's influence has become the research core.
Most of the existing buffers are of single structures, the energy absorption rate is low, the vibration reduction and buffering performance under high impact load is difficult to guarantee, and the requirement of high-performance buffering effect cannot be met.
Disclosure of Invention
Aiming at the defects, the invention provides a composite vibration-damping and impact-resisting device and a vibration-damping method of metal rubber and elastic daub.
The invention solves the technical problem by adopting the scheme that the composite vibration-damping and impact-resisting device of the metal rubber and the elastic daub comprises a mounting seat, an elastic daub damping piece, a metal rubber damping piece, an outer cylinder and a bearing seat, wherein the mounting seat seals the left end of the outer cylinder, the bearing seat penetrates out of the right end of the outer cylinder, and the elastic daub damping piece and the metal rubber damping piece are arranged in the outer cylinder from inside to outside;
the elastic daub damping part comprises an inner barrel and a piston rod arranged in the inner barrel, the left end of the inner barrel is fixedly connected with a mounting seat, the right end of the inner barrel is sealed by an end cover, a bearing seat is sleeved at the right end of the inner barrel, a through hole for the bearing seat to pass through is formed in the right end of the outer barrel, the inner barrel is divided into a left plunger cavity and a right hydraulic cavity by a partition plate, the left end of the piston rod penetrates through the partition plate and extends into the plunger cavity, the right end of the piston rod penetrates through the end cover and is connected with the bearing seat, a piston is arranged in the hydraulic cavity and sleeved on the piston rod, a sinking groove is formed in the middle of the right side face of the piston rod, a throttling metal rubber ring is arranged in the sinking groove, the outer end of the sinking groove is sealed by a stop block sleeved on the piston rod, the piston, the throttling metal rubber ring and the stop block are all fixedly connected with the piston rod, a plurality of longitudinal throttling holes which are correspondingly matched are formed in the groove bottom and the stop block, and the elastic daub is filled in the hydraulic cavity, a charging one-way valve and a pressure relief valve are arranged on the partition plate;
the metal rubber damping part comprises two damping units which are symmetrically sleeved outside the inner barrel in a left-right mode, the damping units comprise assemblies A and assemblies B, the assemblies A are arranged at left and right intervals and are outwards convex in the middle, the assemblies B are inwards convex in the middle, the assemblies A comprise two disc springs and hard metal rubber arranged between the two disc springs, the assemblies B comprise two disc springs and soft metal rubber arranged between the two disc springs, the assemblies B of the two damping units are mutually abutted, the outer end of the damping unit on the left side is abutted against the mounting seat or the outer barrel, and the outer end of the damping unit on the right side is abutted against the pressure bearing seat;
the left end of the periphery of the bearing seat is sleeved with an annular metal rubber buffer pad, and the left end and the right end of the annular metal rubber buffer pad are respectively abutted against the bearing seat and the outer cylinder.
Furthermore, the outer ends of the component A and the component B are separated by a limit ring, and the limit ring is fixedly arranged on the inner wall of the outer barrel.
Furthermore, the periphery of the piston is provided with a ring groove A for installing a wear-resisting ring and a ring groove B for installing a sealing ring from left to right in sequence.
Furthermore, the mounting base is locked with the outer barrel and the inner barrel through bolts.
Furthermore, the right end cover is in threaded connection with the inner cylinder, and a sealing ring is arranged between the periphery of the right end cover and the inner wall of the inner cylinder.
Furthermore, a sealing ring is arranged between the piston rod and the partition plate, and a wear-resistant ring and a sealing ring are arranged between the piston rod and the end cover.
Furthermore, an exhaust hole A is arranged on the periphery of the outer end of the pressure bearing seat, and an exhaust hole B is arranged on the wall of the outer cylinder.
Furthermore, vent holes are formed in the peripheral side walls of the inner cylinder and the plunger cavity.
Furthermore, the piston and the piston rod are of an integrated structure.
A vibration damping method comprises the following steps: the power that the impact produced is applyed on the bearing seat, the bearing seat transmits simultaneously for metal rubber damping piece and elastic cement damping piece, metal rubber damping piece and elastic cement damping piece atress warp and produce the damping force, when piston rod structure receives and takes place relative reciprocating motion between pressure and the inner tube hydraulic pressure chamber, there is a pressure differential between the hydraulic pressure intracavity piston left and right sides, this makes the cement material pass through the throttle metal rubber ring in piston clearance and the orifice, internal flow between the piston left and right sides, thereby produce the damping force.
Compared with the prior art, the invention has the following beneficial effects: the composite damping rubber has the advantages of simple structure and reasonable design, and realizes the composite damping and impact resistance by utilizing the dry friction damping between the metal rubber and the disc spring, the dry friction damping between the metal rubber and the metal rubber, the small hole throttling characteristic of the metal rubber and the viscous energy consumption characteristic of the cement buffer.
Drawings
The invention is further described with reference to the following figures.
Fig. 1 is a half sectional view showing the overall structure of the device.
Fig. 2 is an exploded view of the piston rod structure.
In the figure: 1. a mounting seat; 1a, mounting bolts; 2. an inner barrel; 2a, a charging one-way valve; 2b, a pressure relief valve; 2c, a sealing ring between the partition plate and the piston rod; 3. a disc spring; 4. a piston rod; 4a, a ring groove A; 4B, a ring groove B; 4c, locking the bolt; 4d, a stop block; 5. an end cap; 5a, a wear-resistant ring between the end cover and the piston rod; 5b, a sealing ring between the end cover and the piston rod; 5c, a sealing ring between the end cover and the inner cylinder; 6. a pressure bearing seat; 6a, an exhaust hole A; 7. an outer cylinder; 7a and an exhaust hole B; 8. hard metal rubbers; 9. a soft metal rubber; 10. an annular metal rubber cushion pad; 11. a throttling metal rubber ring; 12. a limit ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-2, a composite vibration-damping and impact-resisting device of metal rubber and elastic daub comprises a mounting base 1, an elastic daub damping piece, a metal rubber damping piece, an outer cylinder 7 and a pressure-bearing base 6, wherein the mounting base seals the left end of the outer cylinder, the pressure-bearing base penetrates out of the right end of the outer cylinder, and the elastic daub damping piece and the metal rubber damping piece are arranged in the outer cylinder from inside to outside;
the elastic daub damping piece comprises an inner barrel 2 and a piston rod 4 arranged in the inner barrel, the left end of the inner barrel is fixedly connected with a mounting seat, the right end of the inner barrel is sealed by an end cover 5, a bearing seat is sleeved at the right end of the inner barrel, a through hole for the bearing seat to pass through is formed in the right end of the outer barrel, the inner barrel is divided into a left plunger cavity and a right hydraulic cavity by a partition plate, the left end of the piston rod penetrates through the partition plate and extends into the plunger cavity, the right end of the piston rod penetrates through the end cover and is connected with the bearing seat, a piston is arranged in the hydraulic cavity and is sleeved on the piston rod, a sunken groove is formed in the middle of the right side face of the piston rod, a throttling metal rubber ring 11 is arranged in the sunken groove, the outer end of the sunken groove is sealed by a stop block 4d sleeved on the piston rod, the piston, the throttling metal rubber ring and the stop block are fixedly connected with the piston rod, the piston rod is fixedly connected with the throttling metal rubber ring and the stop block by riveting, a bolt, a plurality of longitudinal throttling holes which are correspondingly matched with each other method are formed in the bottom of the sunken groove, elastic cement is filled in the hydraulic cavity, and the partition plate is provided with a filling one-way valve 2a and a pressure release valve 2b which are convenient for discharging bubbles when the cement is filled;
the metal rubber damping part comprises two damping units which are symmetrically sleeved outside the inner barrel in a left-right mode, the damping units comprise a component A and a component B, the component A is arranged at left and right intervals and is outwards convex in the middle, the component B is inwards convex in the middle, the component A comprises two disc springs 3 and hard metal rubber 8 arranged between the two disc springs, the component B comprises two disc springs and soft metal rubber 9 arranged between the two disc springs, the components B of the two damping units are mutually abutted, the outer end of the damping unit on the left side is abutted against the mounting seat or the outer barrel, and the outer end of the damping unit on the right side is abutted against the pressure bearing seat;
the left end of the periphery of the bearing seat is sleeved with an annular metal rubber buffer pad 10, and the left end and the right end of the annular metal rubber buffer pad are respectively abutted against the bearing seat and the outer cylinder.
Furthermore, the outer ends of the component A and the component B are separated by a limiting ring 12, and the limiting ring is fixedly arranged on the inner wall of the outer barrel.
In this embodiment, the outer periphery of the piston has, from the left to the right, a ring groove A4a for mounting a wear ring and a ring groove B4B for mounting a seal ring.
In this embodiment, the mounting seat is locked to the outer cylinder and the inner cylinder by bolts.
In this embodiment, the right end cover is connected with the inner cylinder in a threaded manner, and a sealing ring is arranged between the periphery of the right end cover and the inner wall of the inner cylinder.
In this embodiment, a seal ring is disposed between the piston rod and the partition plate, and a wear ring and a seal ring are disposed between the piston rod and the end cover.
In the embodiment, an exhaust hole A6a is arranged on the periphery of the outer end of the pressure bearing seat and can be used as a mounting hole; an air vent B7a is arranged on the wall of the outer cylinder and can be used as a mounting hole.
In this embodiment, the inner cylinder and the plunger cavity are provided with vent holes on the peripheral side wall for discharging high-pressure gas generated during high-speed impact.
In the embodiment, the piston and the piston rod are of an integrated structure, so that the reliability problem caused by connection is reduced.
A vibration damping method comprises the following steps: the power that the impact produced is applyed on the bearing seat, the bearing seat transmits simultaneously for metal rubber damping piece and elastic cement damping piece, metal rubber damping piece and elastic cement damping piece atress warp and produce the damping force, when piston rod structure receives and takes place relative reciprocating motion between pressure and the inner tube hydraulic pressure chamber, there is a pressure differential between the hydraulic pressure intracavity piston left and right sides, this makes the cement material pass through the throttle metal rubber ring in piston clearance and the orifice, internal flow between the piston left and right sides, thereby produce the damping force.
During assembly, select for use the throttle metal rubber ring of suitable porosity to install in the piston, screw piston and dog cooperation through locking bolt 4c, pack the inner tube with piston rod structure, screw the external screw thread of end cover and the internal thread cooperation of inner tube, fill the material check valve that the filling elasticity clay was used with the clay material fill the hydraulic pressure intracavity, the cement material is filled up completely in the hydraulic pressure intracavity to when keeping certain pressure, will fill material check valve and relief valve and close. The inner cylinder is arranged on the mounting seat, the metal rubber damping part is sleeved on the inner cylinder, the right end of the piston rod and the bearing seat are screwed through the threaded hole, the outer cylinder is screwed, and two ends of the buffer can be connected with a structure needing buffering through threads.
When different loads are applied, the metal rubber with different densities (rigidity) and the disc springs with different thicknesses can be selected to be combined with each other. Because the throttling metal rubber ring is an elastic body, when the throttling metal rubber ring is deformed under pressure, the metal rubber element can change the permeability and the porosity of the metal rubber ring, so that the locking bolt can finely adjust the throttling element to the required flow and the expected throttling effect.
In this embodiment, each metal rubber member is an elastic member having a through hole in the middle, which is formed by winding, drawing, weaving, and molding a fine metal wire. The porosity of the metal rubber element can be controlled by selecting the diameter of the metal wire and adjusting the forming pressure. Due to the special manufacturing process and the spatial net-shaped hook connection structure similar to rubber macromolecular materials, the metal rubber material has unique throttling and pressure reducing performances.
The device adopts a metal rubber-disc spring composite structure and a cement buffer parallel structure, realizes composite vibration damping and impact resistance by utilizing dry friction damping between metal rubber and disc spring, and between metal rubber and metal rubber, the small hole throttling characteristic of metal rubber, and the viscous energy consumption characteristic of the cement buffer, and improves a piston rod structure so as to facilitate the preparation of metal rubber.
The metal rubber-disc spring composite structure provided by the device utilizes the characteristics of repeated impact resistance and energy consumption and large deformation restorable of metal rubber, and adopts the disc spring to enhance the bearing capacity of the metal rubber-disc spring composite structure, so that the two parts of the parallel structure are consistent in displacement.
The outer cylinder of the device is provided with the mounting hole, so that air damping can be conveniently generated by the metal rubber under high-speed impact, and the damping characteristic of the metal rubber-disc spring composite structure is enhanced.
The elastic daub material in the device has high temperature resistance and other metal structures, so that the device has adaptability under severe working conditions.
If this patent discloses or refers to parts or structures that are fixedly connected to each other, the fixedly connected may be understood as: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In the description of this patent, it is to be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the patent, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
The above-mentioned preferred embodiments, further illustrating the objects, technical solutions and advantages of the present invention, should be understood that the above-mentioned are only preferred embodiments of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a compound damping anti-impact device of metal rubber and elasticity daub which characterized in that: the damping device comprises a mounting seat, an elastic cement damping piece, a metal rubber damping piece, an outer cylinder and a pressure bearing seat, wherein the mounting seat seals the left end of the outer cylinder, the pressure bearing seat penetrates out of the right end of the outer cylinder, and the elastic cement damping piece and the metal rubber damping piece are arranged in the outer cylinder from inside to outside;
the elastic daub damping part comprises an inner barrel and a piston rod arranged in the inner barrel, the left end of the inner barrel is fixedly connected with a mounting seat, the right end of the inner barrel is sealed by an end cover, a bearing seat is sleeved at the right end of the inner barrel, a through hole for the bearing seat to pass through is formed in the right end of the outer barrel, the inner barrel is divided into a left plunger cavity and a right hydraulic cavity by a partition plate, the left end of the piston rod penetrates through the partition plate and extends into the plunger cavity, the right end of the piston rod penetrates through the end cover and is connected with the bearing seat, a piston is arranged in the hydraulic cavity and sleeved on the piston rod, a sinking groove is formed in the middle of the right side face of the piston rod, a throttling metal rubber ring is arranged in the sinking groove, the outer end of the sinking groove is sealed by a stop block sleeved on the piston rod, the piston, the throttling metal rubber ring and the stop block are all fixedly connected with the piston rod, a plurality of longitudinal throttling holes which are correspondingly matched are formed in the groove bottom and the stop block, and the elastic daub is filled in the hydraulic cavity, a charging one-way valve and a pressure relief valve are arranged on the partition plate;
the metal rubber damping part comprises two damping units which are symmetrically sleeved outside the inner barrel in a left-right mode, the damping units comprise assemblies A and assemblies B, the assemblies A are arranged at left and right intervals and are outwards convex in the middle, the assemblies B are inwards convex in the middle, the assemblies A comprise two disc springs and hard metal rubber arranged between the two disc springs, the assemblies B comprise two disc springs and soft metal rubber arranged between the two disc springs, the assemblies B of the two damping units are mutually abutted, the outer end of the damping unit on the left side is abutted against the mounting seat or the outer barrel, and the outer end of the damping unit on the right side is abutted against the pressure bearing seat;
the left end of the periphery of the bearing seat is sleeved with an annular metal rubber buffer pad, and the left end and the right end of the annular metal rubber buffer pad are respectively abutted against the bearing seat and the outer cylinder.
2. The composite vibration and impact damping device of metal rubber and elastic daub as claimed in claim 1, wherein: the outer ends of the component A and the component B are separated by a limiting ring, and the limiting ring is fixedly arranged on the inner wall of the outer barrel.
3. The composite vibration and impact damping device of metal rubber and elastic daub as claimed in claim 1, wherein: the periphery of the piston is provided with a ring groove A for mounting a wear-resisting ring and a ring groove B for mounting a sealing ring from left to right in sequence.
4. The composite vibration and impact damping device of metal rubber and elastic daub as claimed in claim 1, wherein: the mounting seat is locked with the outer barrel and the inner barrel through bolts.
5. The composite vibration and impact damping device of metal rubber and elastic daub as claimed in claim 1, wherein: the right end cover is in threaded connection with the inner cylinder, and a sealing ring is arranged between the periphery of the right end cover and the inner wall of the inner cylinder.
6. The composite vibration and impact damping device of metal rubber and elastic daub as claimed in claim 1, wherein: a sealing ring is arranged between the piston rod and the partition plate, and a wear-resisting ring and a sealing ring are arranged between the piston rod and the end cover.
7. The composite vibration and impact damping device of metal rubber and elastic daub as claimed in claim 1, wherein: an exhaust hole A is arranged on the periphery of the outer end of the pressure bearing seat, and an exhaust hole B is arranged on the wall of the outer cylinder.
8. The composite vibration and impact damping device of metal rubber and elastic daub as claimed in claim 1, wherein: and vent holes are formed in the peripheral side walls of the inner cylinder and the plunger cavity.
9. The composite vibration and impact damping device of metal rubber and elastic daub as claimed in claim 1, wherein: the piston and the piston rod are of an integrated structure.
10. A vibration damping method using the composite vibration damping and impact resisting device of metal rubber and elastic daub as claimed in claim 1, wherein: the power that the impact produced is applyed on the bearing seat, the bearing seat transmits simultaneously for metal rubber damping piece and elastic cement damping piece, metal rubber damping piece and elastic cement damping piece atress warp and produce the damping force, when piston rod structure receives and takes place relative reciprocating motion between pressure and the inner tube hydraulic pressure chamber, there is a pressure differential between the hydraulic pressure intracavity piston left and right sides, this makes the cement material pass through the throttle metal rubber ring in piston clearance and the orifice, internal flow between the piston left and right sides, thereby produce the damping force.
CN202110646346.9A 2021-06-10 2021-06-10 Composite vibration-damping and impact-resisting device and vibration-damping method for metal rubber and elastic daub Pending CN113202896A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114151498A (en) * 2021-12-08 2022-03-08 福州大学 Magnetic current variable high-damping shock absorber based on metal rubber porous material and shock absorption method thereof
CN115163737A (en) * 2022-07-29 2022-10-11 福州大学 Multi-degree-of-freedom composite shock absorber and working method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114151498A (en) * 2021-12-08 2022-03-08 福州大学 Magnetic current variable high-damping shock absorber based on metal rubber porous material and shock absorption method thereof
CN114151498B (en) * 2021-12-08 2022-08-12 福州大学 Magnetic current variable high-damping shock absorber based on metal rubber porous material and shock absorption method thereof
CN115163737A (en) * 2022-07-29 2022-10-11 福州大学 Multi-degree-of-freedom composite shock absorber and working method thereof
CN115163737B (en) * 2022-07-29 2023-12-01 福州大学 Multi-degree-of-freedom composite shock absorber and working method thereof

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