CN109281971B - high-performance shock absorber - Google Patents
high-performance shock absorber Download PDFInfo
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- CN109281971B CN109281971B CN201811244108.XA CN201811244108A CN109281971B CN 109281971 B CN109281971 B CN 109281971B CN 201811244108 A CN201811244108 A CN 201811244108A CN 109281971 B CN109281971 B CN 109281971B
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- wire mesh
- supporting
- base
- support
- shock absorber
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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
- F16F7/00—Vibration-dampers; Shock-absorbers
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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
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/04—Wound springs
- F16F1/12—Attachments or mountings
- F16F1/121—Attachments or mountings adjustable, e.g. to modify spring characteristics
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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
- F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
- F16F2228/06—Stiffness
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention belongs to the field of shock absorbers, and particularly discloses a high-performance shock absorber which comprises a frame structure, a variable stiffness structure and a main bearing structure, wherein the frame structure comprises a supporting cover and a base positioned below the supporting cover; the variable-rigidity structure comprises a central fulcrum shaft, an upper vibration damping assembly and a lower vibration damping assembly, the central fulcrum shaft penetrates through the upper end of the base and is fixedly connected with the supporting cover, the upper vibration damping assembly and the lower vibration damping assembly are sleeved on the central fulcrum shaft, the upper vibration damping assembly is positioned between the base and the supporting cover, and the lower vibration damping assembly is positioned between the base and a shaft shoulder of the central fulcrum shaft; the main bearing structure comprises a spring support and a supporting spring, the spring support is arranged below the central fulcrum shaft and movably connected with the base, and the supporting spring is arranged between a shaft shoulder of the central fulcrum shaft and the spring support. The invention can ensure that the shock absorber always works in a low-rigidity interval under normal load, and has the advantages of simple structure, strong applicability and the like.
Description
Technical Field
The invention belongs to the field of shock absorbers, and particularly relates to a high-performance shock absorber.
Background
The power and the torque of a power device used on the armored vehicle are large, the power and the torque are main vibration sources on the armored vehicle, in addition, the running environment of the vehicle is complex and severe, the space in the vehicle is closed and compact, the long-time vibration and noise can seriously affect the body health of vehicle drivers and members, and the service life of related vehicle-mounted equipment can also be influenced. Therefore, there is a need to develop a vibration damping device for a power plant that can operate in a harsh environment for a long period of time to alleviate the problems of vibration and noise on an armored vehicle.
General damping materials such as rubber have poor adaptability to working environments, are prone to corrosion and are prone to aging. The metal wire mesh material is a metal part which is made by weaving and winding metal wires according to a certain rule and then pressing the metal wires through cold punching, has stronger bearing capacity due to the metal material, has strong adaptability to severe environment, and is suitable for manufacturing the shock absorber working under special working conditions of high and low temperature, large temperature difference, vacuum, strong corrosivity and the like.
At present, a wire mesh vibration absorber commonly used on an armored vehicle has higher rigidity under normal working condition load, and the numerical value of the rigidity is not easy to control, so that the noise and the vibration transmitted into a vehicle body by a power device of the armored vehicle are still serious, and the vibration isolation performance of the vibration absorber is required to be further improved for further improving the comfort and the service life of the armored vehicle.
Disclosure of Invention
the invention provides a high-performance shock absorber, aiming at solving the problem that the existing wire mesh shock absorber has poor vibration isolation performance due to overlarge rigidity under normal working condition load, and the combined high-performance shock absorber with a main bearing structure and a variable rigidity structure can compensate load fluctuation by adjusting the precompression amount of a supporting spring, ensure that the shock absorber always works in a low rigidity interval under normal load, can show good rigidity self-adaptability according to the change of load, has the advantages of simple structure, strong applicability and the like, and is suitable for moving vehicles running in complicated and severe environments, such as a power device suspension system of a armored vehicle.
In order to achieve the above object, the present invention provides a high performance vibration absorber, which comprises a frame structure, a variable stiffness structure and a main bearing structure, wherein:
The frame structure comprises a support cover and a base positioned below the support cover;
The variable-rigidity structure comprises a central fulcrum shaft, an upper vibration damping assembly and a lower vibration damping assembly, the central fulcrum shaft penetrates through the upper end of the base and is fixedly connected with a supporting cover above the base, the upper vibration damping assembly and the lower vibration damping assembly are sleeved on the central fulcrum shaft, the upper vibration damping assembly is positioned between the base and the supporting cover and comprises an upper soft supporting wire mesh and an upper hard supporting wire mesh which are sequentially stacked from top to bottom, and the lower vibration damping assembly is positioned between the base and a shaft shoulder of the central fulcrum shaft and comprises a lower hard supporting wire mesh and a lower soft supporting wire mesh which are sequentially stacked from top to bottom;
The main bearing structure comprises a spring support and a supporting spring, the spring support is arranged below the central fulcrum shaft and movably connected with the base, and the supporting spring is arranged between a shaft shoulder of the central fulcrum shaft and the spring support.
as a further preferred option, the main bearing structure further comprises an adjusting cushion block, the adjusting cushion block is mounted below the spring support through an inner hexagon screw, and an adjusting gasket is further arranged between the adjusting cushion block and the spring support.
Preferably, an upper sealing ring is arranged between the outer surface of the base and the inner surface of the supporting cover, and a lower sealing ring is arranged between the outer surface of the adjusting cushion block and the inner surface of the base.
Preferably, the base is a cavity structure with a closed upper end and an open lower end, and the inner and outer surfaces of the upper end of the base are provided with an upper groove and a lower groove which are coaxially arranged and used for mounting the upper vibration damping assembly and the lower vibration damping assembly.
Preferably, the upper end of the base is further provided with a through hole concentric with the upper and lower grooves for the central fulcrum to pass through.
preferably, the outer surface of the base is provided with an annular groove for mounting the upper sealing ring.
Preferably, the supporting cover is also a cavity structure with a closed upper end and an open lower end, a tapered boss is arranged on the outer surface of the upper end of the supporting cover, a stepped boss structure is arranged on the inner surface of the supporting cover and used for positioning the upper vibration damping assembly, and a threaded hole is formed in the middle of the stepped boss and used for connecting the central fulcrum shaft.
preferably, the side surface of the spring support is provided with a waist-shaped hole, and the outer hexagon bolt arranged on the side surface of the base penetrates through the waist-shaped hole to movably connect the spring support and the base.
Preferably, the support spring is pre-compressed by adjusting the cushion block to be compressed upwards in the initial state, a gap is formed between the first-stage boss surface of the step boss inside the support cover and the upper soft support wire mesh, the lower hard support wire mesh and the support spring are all compressed, and the initial total stiffness of the shock absorber is equal to the stiffness of the lower soft support wire mesh and the lower hard support wire mesh which are connected in series and connected in parallel with the stiffness of the upper support spring.
As a further preference, in operation, when the support cover is displaced downwardly by the external pressure, the lower soft support wire mesh and the lower hard support wire mesh are loosened, so that the total rigidity of the damper is nonlinearly reduced; when the supporting cover continues to move downwards, the lower soft supporting wire mesh and the lower hard supporting wire mesh are completely loosened, and the total rigidity of the shock absorber is equal to that of the supporting spring; when the supporting cover continues to move downwards again, the supporting cover is in contact with the upper soft supporting wire mesh, so that the upper soft supporting wire mesh and the upper hard supporting wire mesh are compressed, and the total rigidity of the shock absorber is the sum of the rigidity of the upper soft supporting wire mesh and the rigidity of the upper hard supporting wire mesh after being connected in series and the rigidity of the supporting spring; when the supporting cover is upwards displaced under the action of external tension, the lower soft supporting wire mesh and the lower hard supporting wire mesh are compressed more tightly, and the rapidly increased nonlinear rigidity is generated.
generally, compared with the prior art, the above technical solution conceived by the present invention mainly has the following technical advantages:
1. the high-performance shock absorber researched and designed by the invention can show good rigidity self-adaptability according to the change of load through the mutual matching action of the frame structure and the variable rigidity structure, and has the advantages of simple structure, strong applicability and the like.
2. The high-performance vibration absorber researched and designed by the invention shows the following characteristics in work: the stiffness initially gradually decreases during the depression, decreases to a constant value if the depression is continued, and remains constant for a period of the depression displacement, rapidly increases nonlinearly if the shock absorber is further depressed, and increases nonlinearly when the shock absorber is pulled up.
3. The rigidity interval of the high-performance shock absorber under normal load researched and designed by the invention is an interval with unchanged rigidity in a pressing displacement interval, only the supporting spring in the shock absorber plays a supporting role at the moment, the presented rigidity is lower, and a good shock absorption effect can be brought.
4. The high-performance shock absorber researched and designed by the invention can conveniently replace the number of the adjusting gaskets from the bottom so as to adjust the pre-compression amount of the supporting spring after the shock absorber is installed, thereby adjusting the normal working load of the shock absorber.
5. compared with the traditional wire mesh shock absorber, the wire mesh in the high-performance shock absorber designed by the research of the invention only acts when the load of the shock absorber exceeds the normal load, and only the supporting spring acts in the shock absorber within the normal load range.
Drawings
FIG. 1 is a front half sectional view of the high performance shock absorber of the present invention;
FIG. 2 is a schematic external view of the high performance shock absorber of the present invention;
FIG. 3 is a perspective cross-sectional view of the support cap;
FIG. 4 is a perspective cross-sectional view of the base;
FIG. 5 is a schematic view of the construction of the central fulcrum;
FIG. 6 is a schematic view of the adjusting block;
FIG. 7 is a schematic view of a conditioner shim;
FIG. 8 is a schematic view of the spring support;
FIG. 9 is a side cross-sectional view of the high performance shock absorber of the present invention;
FIG. 10 is a cross-sectional view of the high performance shock absorber of the present invention shown in place;
FIG. 11 is a graph of stiffness versus displacement for the high performance shock absorber of the present invention.
Detailed Description
in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
as shown in fig. 1-2, a high performance shock absorber provided by an embodiment of the present invention includes a frame structure, a variable stiffness structure, and a main bearing structure, where the frame structure is used as a mounting base for mounting the variable stiffness structure and the main bearing structure, the variable stiffness structure is used as a core component of the high performance shock absorber for achieving a variable stiffness damping effect, and the main bearing structure is used as a core component of the high performance shock absorber for adjusting a normal operating load of the shock absorber.
as shown in fig. 1-2, the frame structure comprises a support cover 1 and a base 8 located below the support cover 1. As shown in fig. 3, the supporting cover 1 is a cavity structure with a closed upper end and an open lower end, the main body of the supporting cover 1 is formed by combining shapes of semicylindrical bodies at two ends and a cuboid in the middle, a boss with taper is arranged on the upper surface of the supporting cover, a threaded hole for connecting with the outside is arranged on the boss with taper, the inside of the supporting cover 1 is a cavity corresponding to the outside shape, a ladder boss is arranged on the inner surface of the upper end of the supporting cover and used for positioning an upper vibration damping component, a first boss is arranged above the ladder boss, a second boss is arranged below the ladder boss, and a threaded hole is arranged in the middle of the ladder boss and used for.
As shown in fig. 4, the base 8 is a cavity structure with a closed upper end and an open lower end, the inner and outer surfaces of the upper end are provided with an upper groove and a lower groove which are coaxially arranged, wherein the upper groove is used for installing an upper vibration damping assembly, the lower groove is used for installing a lower vibration damping assembly, the upper end of the base 8 is further provided with a through hole which is concentric with the upper and lower grooves and is used for the central fulcrum shaft 7 to pass through, an upper sealing ring 4 is arranged between the outer surface of the base 8 and the inner surface of the supporting cover 1, the outer surface of the base 8 is provided with an annular groove used for installing the upper sealing ring 4, the lower part of the base 8 is provided with a bottom plate which extends outwards, and.
As shown in fig. 1-2, the variable stiffness structure includes a central support shaft 7, an upper vibration damping assembly and a lower vibration damping assembly, wherein the upper end of the central support shaft 7 passes through the through hole at the upper end of the base 8 and is connected with the threaded hole on the support cover 1, the upper vibration damping assembly and the lower vibration damping assembly are both sleeved on the central support shaft 7, the upper vibration damping assembly is located between the base 8 and the support cover 1, specifically, the upper vibration damping assembly is sleeved on the second boss of the stepped boss and is embedded in the upper groove of the base 8, and the upper vibration damping assembly includes an upper soft support wire mesh 2 and an upper hard support wire mesh 3 which are stacked in sequence from top to bottom. The lower vibration damping component is positioned between the shaft shoulders of the base 8 and the central fulcrum shaft 7, specifically, is embedded in the lower groove of the base 8, and comprises a lower hard support wire mesh 5 and a lower soft support wire mesh 6 which are sequentially stacked from top to bottom, wherein the upper soft support wire mesh, the upper hard support wire mesh, the lower hard support wire mesh and the lower soft support wire mesh are all annular parts formed by weaving and pressing stainless steel wires.
as shown in fig. 1, the main bearing structure comprises a spring support 11 and a support spring 9, the spring support 11 is arranged below the central fulcrum 7 and movably connected with the base 8, and the support spring 9 is arranged between a shoulder of the central fulcrum 7 and the spring support 11.
As shown in fig. 5, the central support shaft 7 is a stepped shaft structure, the upper end of the central support shaft is provided with an external thread for screwing and connecting with the support cover 1, the other end of the central support shaft is provided with a shaft shoulder for bearing force, and an external hexagonal stepped boss for connecting with an external hexagonal sleeve, the external thread at the upper end of the central support shaft 7 can be conveniently screwed and installed on a threaded inner hole of the support cover 1 by using the external hexagonal sleeve, and the external hexagonal stepped boss simultaneously plays a role in limiting the installation of the support spring 9.
Further, the main bearing structure further comprises an adjusting cushion block 14, the adjusting cushion block 14 is structured as shown in fig. 6, the adjusting cushion block 14 is mounted below the spring support 11 through an inner hexagon screw 15, an adjusting gasket 12 is arranged between the adjusting cushion block 14 and the spring support 11, the adjusting gasket 12 is structured as shown in fig. 7, a unthreaded hole for a screw to pass through is formed in the adjusting gasket 12, and specifically, the spring support 11, the adjusting gasket 12 and the adjusting cushion block 14 are fixedly connected together through the inner hexagon screw 15. Further, a lower sealing ring 13 is arranged between the outer surface of the adjusting cushion block 14 and the inner surface of the base 8, an annular groove for mounting the lower sealing ring 13 is formed in the outer surface of the adjusting cushion block 14, and the supporting spring 9, the spring support 11, the adjusting gasket 12 and the adjusting cushion block 14 form a main bearing mechanism of the shock absorber. The invention can conveniently replace the number of the adjusting gaskets 12 by detaching the socket head cap screws 15 at the bottom so as to adjust the precompression quantity of the supporting spring 9 after the shock absorber is installed in place, thereby adjusting the normal working load of the shock absorber.
As shown in fig. 8-9, waist-shaped holes are formed in the side surface of the spring support 11, the outer hexagon bolts 10 are screwed and installed in threaded holes around the base 8, so that the waist-shaped holes in the two sides of the spring support 11 can be hung at the tail of the outer hexagon bolts 10, the spring support 11 can be pressed into the base 8 to move up and down after the shock absorber is installed due to the contact between the adjusting cushion block 14 and the ground, and parts in the cavity of the mounting base 8 can be prevented from falling off during the transportation of the shock absorber. Specifically, the two sides of the spring support are provided with side supporting plates, waist-shaped holes are formed in the side supporting plates, stepped cylindrical boss structures used for positioning and supporting the spring are arranged at the two ends of the spring support, and threaded holes used for being connected with screws for adjusting cushion blocks are formed in the lower portion of the spring support.
Preferably, two groups of rigidity-variable structures are arranged in the shock absorber, during assembly, the threaded parts at the upper parts of the two central support shafts 7 penetrate through holes in grooves of the base 8 and are screwed and fixed with internal threads at the center of a stepped boss in the support cover 1, after the two central support shafts 7 are screwed and fixed with the support cover 1, a group of upper soft support wire mesh 2 and upper hard support wire mesh 3 positioned above are sleeved on the stepped boss in the support cover 1, a group of lower hard support wire mesh 5 and lower soft support wire mesh 6 positioned at the lower part are sleeved on the central support shafts 7, and the overlapped upper soft support wire mesh 2, upper hard support wire mesh 3, lower hard support wire mesh 5, lower soft support wire mesh 6 and central support shaft 7 form the rigidity-variable structures of the shock absorber; the upper sealing ring 4 is sleeved in an annular groove in the side face of the upper portion of the base 8, the lower sealing ring 13 is sleeved in an annular groove in the side face of the adjusting cushion block 14, the upper sealing ring 4 and the lower sealing ring 13 jointly play a role in sealing the interior of the shock absorber, entering of dust and oil stains is reduced, and the service life of the shock absorber is prolonged.
When the shock absorber is used, the shock absorber is fixed in place by bolts, the adjusting cushion block 14 is compressed upwards by the mounting plane contacted with the bottom surface of the shock absorber, so that the supporting spring 9 generates precompression, after the shock absorber is mounted in place, as shown in fig. 10, a gap of about 1mm is formed between the first boss surface of the stepped boss inside the supporting cover 1 and the upper soft supporting wire mesh 2, at the moment, due to the compression effect of the mounting plane on the adjusting cushion block, the lower soft supporting wire mesh 5, the lower hard supporting wire mesh 6 and the supporting spring 9 are all compressed, the initial total stiffness of the shock absorber is equal to the stiffness of the lower soft supporting wire mesh 5 and the lower hard supporting wire mesh 6 which are connected in series and connected with the upper supporting spring 9 in parallel, namely the initial total stiffness of the shock absorber is the stiffness calculated by firstly connecting the stiffness of the lower soft supporting wire mesh 5 and the stiffness of the lower hard supporting wire mesh 6 in, plus the stiffness value of the supporting spring 9.
As shown in fig. 11, the displacement of the damper when the support cover 1 is pressed is negative, and the displacement of the damper when the support cover 1 is pulled is positive. In operation, when the support cover 1 is displaced downwards under the action of external pressure, the lower soft support wire mesh 5 and the lower hard support wire mesh 6 are loosened, so that the total rigidity of the damper is reduced nonlinearly; when the support cover 1 continues to be displaced downward, the lower soft support wire mesh 5 and the lower hard support wire mesh 6 are completely released, and the total stiffness of the damper is equal to the stiffness of the support spring 9; when the supporting cover 1 continues to move downwards again, the supporting cover 1 can contact with the upper soft supporting wire mesh 2, so that the upper soft supporting wire mesh 2 and the upper hard supporting wire mesh 3 are compressed, the total rigidity of the shock absorber is the rigidity of the upper soft supporting wire mesh 2 and the upper hard supporting wire mesh 3 which are connected in series and the rigidity of the supporting spring 9, namely the total rigidity of the shock absorber is the rigidity value of the upper soft supporting wire mesh 2 and the rigidity value of the upper hard supporting wire mesh 3 which are subjected to rigidity series connection calculation and the rigidity value of the supporting spring 9; when the support cover 1 is upwardly displaced by an external tensile force, the two lower soft support wire nets 5 and the two lower hard support wire nets 6 are compressed more tightly, thereby generating rapidly increased non-linear rigidity. The interval that the rigidity is equal to the rigidity of the supporting spring in the pressing displacement interval is the normal working interval of the shock absorber, the shock absorber can show low rigidity which does not change along with displacement in the interval, good shock absorption effect can be achieved, when the displacement of the shock absorber exceeds the normal working interval due to the change of load, the rigidity of the shock absorber can be rapidly increased, so that the displacement stops, and the limiting effect is achieved. Therefore, the shock absorber of the present invention can exhibit good stiffness adaptability according to the change of the load.
it will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A high performance shock absorber comprising a frame structure, a variable stiffness structure and a primary load bearing structure, wherein:
The frame structure comprises a support cover (1) and a base (8) positioned below the support cover (1);
The variable stiffness structure comprises a central fulcrum shaft (7), an upper vibration damping assembly and a lower vibration damping assembly, wherein the central fulcrum shaft (7) penetrates through the upper end of a base (8) and is fixedly connected with a supporting cover (1) above the base (8), the upper vibration damping assembly and the lower vibration damping assembly are sleeved on the central fulcrum shaft (7), the upper vibration damping assembly is positioned between the base (8) and the supporting cover (1) and comprises an upper soft supporting wire mesh (2) and an upper hard supporting wire mesh (3) which are sequentially stacked from top to bottom, the lower vibration damping assembly is positioned between shaft shoulders of the base (8) and the central fulcrum shaft (7) and comprises a lower hard supporting wire mesh (5) and a lower soft supporting wire mesh (6) which are sequentially stacked from top to bottom;
The main bearing structure comprises a spring support (11), a supporting spring (9) and an adjusting cushion block (14), the spring support (11) is arranged below the central fulcrum shaft (7) and movably connected with the base (8), the supporting spring (9) is arranged between a shaft shoulder of the central fulcrum shaft (7) and the spring support (11), the adjusting cushion block (14) is arranged below the spring support (11), and an adjusting gasket (12) is arranged between the adjusting cushion block (14) and the spring support (11);
In an initial state, the supporting spring (9) generates a pre-compression amount by adjusting the upward compression of the cushion block (14), a gap is reserved between the inside of the supporting cover (1) and the upper soft supporting wire mesh (2), at the moment, the lower soft supporting wire mesh (6), the lower hard supporting wire mesh (5) and the supporting spring (9) are all compressed, and the initial total stiffness of the shock absorber is equal to the stiffness of the lower soft supporting wire mesh (6) and the lower hard supporting wire mesh (5) which are connected in series and connected with the upper supporting spring (9) in parallel;
When the vibration absorber works, when the support cover (1) is subjected to downward displacement caused by the action of external pressure, the lower soft support wire mesh (6) and the lower hard support wire mesh (5) are loosened, so that the total rigidity of the vibration absorber is nonlinearly reduced; when the supporting cover (1) continues to move downwards, the lower soft supporting wire mesh (6) and the lower hard supporting wire mesh (5) are completely loosened, and the total rigidity of the shock absorber is equal to that of the supporting spring (9); when the supporting cover (1) continues to move downwards again, the supporting cover (1) is in contact with the upper soft supporting wire mesh (2), so that the upper soft supporting wire mesh (2) and the upper hard supporting wire mesh (3) are compressed, and the total rigidity of the shock absorber is the rigidity of the upper soft supporting wire mesh (2) and the upper hard supporting wire mesh (3) which are connected in series plus the rigidity of the supporting spring (9); when the supporting cover (1) is upwards displaced under the action of external tension, the lower soft supporting wire mesh (6) and the lower hard supporting wire mesh (5) are compressed more tightly, and nonlinear rigidity which is rapidly increased is generated.
2. High performance shock absorber according to claim 1, wherein said adjusting pad (14) is mounted below the spring support (11) by means of socket head cap screws (15).
3. The high performance shock absorber according to claim 1, wherein an upper sealing ring (4) is provided between the outer surface of the base (8) and the inner surface of the support cap (1), and a lower sealing ring (13) is provided between the outer surface of the adjusting pad (14) and the inner surface of the base (8).
4. A high performance vibration damper according to claim 1, wherein said base (8) is a hollow structure having a closed upper end and an open lower end, and the inner and outer surfaces of the upper end thereof are provided with an upper groove for mounting the upper vibration damping member and a lower groove for mounting the lower vibration damping member, which are coaxially disposed.
5. A high performance vibration damper according to claim 4, characterized in that the upper end of said base (8) is further provided with a through hole concentric with the upper and lower grooves for the central fulcrum (7) to pass through.
6. A high performance shock absorber as claimed in claim 1, wherein the outer surface of the base (8) defines an annular groove for mounting the upper seal ring (4).
7. a high performance vibration damper according to claim 1, characterized in that said support cover (1) is also a cavity structure with closed upper end and open lower end, the outer surface of the upper end is provided with a tapered boss, the inner surface is provided with a stepped boss structure for positioning the upper damping assembly, and the middle of said stepped boss is provided with a threaded hole for connecting the central fulcrum (7).
8. A high performance vibration damper according to any one of claims 1-7, characterized in that the side of said spring support (11) is provided with a kidney-shaped hole through which an external hexagonal bolt (10) mounted on the side of the base (8) is passed to effect the movable connection of the spring support (11) to the base (8).
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| CN201811244108.XA CN109281971B (en) | 2018-10-24 | 2018-10-24 | high-performance shock absorber |
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| CN201811244108.XA CN109281971B (en) | 2018-10-24 | 2018-10-24 | high-performance shock absorber |
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| CN109281971B true CN109281971B (en) | 2019-12-06 |
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| CN110513423B (en) * | 2019-09-10 | 2024-04-05 | 北京强度环境研究所 | All-metal elastic supporting pad |
| CN112762121A (en) * | 2020-12-16 | 2021-05-07 | 沈阳工业大学 | Shock absorber and design method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3343377A (en) * | 1964-05-15 | 1967-09-26 | Aquitaine Petrole | Damping device for a shaft which is subject simultaneously to longitudinal and angular oscillations |
| CN201739411U (en) * | 2009-12-23 | 2011-02-09 | 中国飞机强度研究所 | Bidirectional independent rigidity wire mesh vibration isolator |
| CN102486212A (en) * | 2011-03-11 | 2012-06-06 | 清华大学 | Multiple-degree-of-freedom vibration isolator and multiple-degree-of-freedom vibration isolating system for effective load and satellite |
| CN105065566A (en) * | 2015-07-15 | 2015-11-18 | 株洲时代新材料科技股份有限公司 | Shock absorber |
| CN106678239A (en) * | 2015-11-10 | 2017-05-17 | 中国飞机强度研究所 | Composite structure vibration isolator with rubber and wire mesh combined |
| CN108105305A (en) * | 2017-12-13 | 2018-06-01 | 中国飞机强度研究所 | A kind of vibration isolator |
-
2018
- 2018-10-24 CN CN201811244108.XA patent/CN109281971B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3343377A (en) * | 1964-05-15 | 1967-09-26 | Aquitaine Petrole | Damping device for a shaft which is subject simultaneously to longitudinal and angular oscillations |
| CN201739411U (en) * | 2009-12-23 | 2011-02-09 | 中国飞机强度研究所 | Bidirectional independent rigidity wire mesh vibration isolator |
| CN102486212A (en) * | 2011-03-11 | 2012-06-06 | 清华大学 | Multiple-degree-of-freedom vibration isolator and multiple-degree-of-freedom vibration isolating system for effective load and satellite |
| CN105065566A (en) * | 2015-07-15 | 2015-11-18 | 株洲时代新材料科技股份有限公司 | Shock absorber |
| CN106678239A (en) * | 2015-11-10 | 2017-05-17 | 中国飞机强度研究所 | Composite structure vibration isolator with rubber and wire mesh combined |
| CN108105305A (en) * | 2017-12-13 | 2018-06-01 | 中国飞机强度研究所 | A kind of vibration isolator |
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