CN109372943B - Adjustable double-layer metal rubber damping shock absorber and working method thereof - Google Patents
Adjustable double-layer metal rubber damping shock absorber and working method thereof Download PDFInfo
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- CN109372943B CN109372943B CN201811512027.3A CN201811512027A CN109372943B CN 109372943 B CN109372943 B CN 109372943B CN 201811512027 A CN201811512027 A CN 201811512027A CN 109372943 B CN109372943 B CN 109372943B
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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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
- F16F15/085—Use of both rubber and metal springs
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Abstract
The invention relates to an adjustable double-layer metal rubber damping shock absorber and a working method thereof, wherein the adjustable double-layer metal rubber damping shock absorber comprises a base and a shell fixedly connected to the base, an end cover, an upper fixing support and a lower fixing support are sequentially arranged between the inner top surface of the shell and the base from top to bottom, an upper spring component is connected between the end cover and the upper fixing support, a metal rubber damping element is arranged between the upper fixing support and the lower fixing support, and a lower spring component is connected between the lower fixing support and the base. The invention has reasonable structure, adopts the composite structure of the metal rubber and the spring, mainly adjusts the rigidity of the shock absorber through the spring, and the metal rubber damping element not only increases the damping of the shock absorber, but also is applicable to various working conditions, and the combination of the metal rubber damping element and the spring enables the overall rigidity and the damping of the shock absorber to be adjusted to the most suitable performance parameter interval in practical application, thereby improving the comprehensive performance of the shock absorber and having good damping effect.
Description
Technical field:
the invention relates to an adjustable double-layer metal rubber damping shock absorber and a working method thereof.
The background technology is as follows:
with the development of industrial technologies such as aerospace, navigation chemical industry and nuclear energy equipment, the vibration reduction and buffering requirements on equipment are increasingly increased, and the conventional vibration reduction and buffering mode generally adopts rubber materials or vibration reduction devices. However, the conventional rubber material is difficult to meet the technical requirements under the complex environments of high and low temperature, large load impact and the like, and the conventional vibration damper has the following defects: (1) The traditional rubber vibration damper has a narrow working condition temperature range, rubber is easy to chemically react with ozone, light and the like to age, the rubber becomes hard and brittle at low temperature to be cracked locally, and oil resistance, water resistance and acid and alkali resistance are poor, so that the service performance of the vibration damper is influenced, the service life is short, and the vibration damper cannot fully play a role; (2) In the fields of aerospace, navigation and the like, the actual vibration working condition is very complex, and most of the existing vibration damping devices only consider vibration damping in a single linear direction, so that the complex working condition of the actual multidirectional vibration damping is difficult to meet.
The invention comprises the following steps:
the invention aims at improving the problems existing in the prior art, namely the technical problem to be solved by the invention is to provide the adjustable double-layer metal rubber damping shock absorber and the working method thereof, which have reasonable structure, can adapt to complex environments and have good damping effect.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the utility model provides a double-deck metal rubber damping shock absorber with adjustable, includes the base and links firmly the shell on the base, from last down being equipped with end cover, last fixed bolster and lower fixed bolster between the interior top surface of shell and the base, be connected with spring assembly between end cover and the last fixed bolster, be provided with metal rubber damping element between last fixed bolster and the lower fixed bolster, be connected with down spring assembly between lower fixed bolster and the base.
Further, the upper fixing support and the lower fixing support are both T-shaped and are oppositely arranged, the vertical section of the upper fixing support upwards penetrates through the end cover and the shell, and a connecting screw hole for being connected with equipment needing vibration reduction is formed in the middle of the top surface.
Further, a first stepped hole which is favorable for the vertical section of the upper fixing support to pass through is coaxially formed in the center of the shell and the end cover, an annular upper limit flange is arranged on the outer wall of the vertical section of the upper fixing support, a limit metal rubber ring A fixedly sleeved on the outer side of the vertical section is arranged on the upper side of the upper limit flange, and an upper buffer gap is formed between the limit metal rubber ring A and the step surface of the first stepped hole; an annular lower limit flange is arranged on the outer wall of the lower end of the vertical section of the lower fixed support, a limit metal rubber ring B fixedly sleeved on the outer side of the vertical section is arranged on the lower side of the lower limit flange, and the bottom surface of the limit metal rubber ring B is positioned on the lower side of the bottom surface of the vertical section of the lower fixed support; the middle part of base is along vertically running through being equipped with in order to do benefit to the second step hole that the vertical section lower extreme of lower fixed bolster stretched into, there is lower buffer clearance between spacing metal rubber ring B's bottom surface and the step face in second step hole.
Further, a pre-tightening screw hole which is coaxially arranged with the second step hole and is matched with the pre-tightening bolt is formed in the middle of the bottom surface of the vertical section of the lower fixing support.
Further, the upper spring assembly is arranged between the horizontal section of the upper fixing support and the bottom surface of the end cover, and comprises four upper buffer springs uniformly distributed around the axis of the upper fixing support in a circumference manner, wherein the upper buffer springs are obliquely arranged, and the upper end and the lower end of each upper buffer spring are respectively abutted against the end cover and the horizontal section of the upper fixing support; the lower spring assembly is arranged between the horizontal section of the lower fixing support and the top surface of the base, and comprises four lower buffer springs uniformly distributed around the axis of the lower fixing support in a circumference manner, wherein the lower buffer springs are obliquely arranged, the upper ends and the lower ends of the lower buffer springs are respectively abutted against the horizontal section of the lower fixing support and the base, and the inclination directions of the lower buffer springs and the upper buffer springs are opposite.
Further, the bottom surface of the end cover is provided with four upper abutting concave parts A corresponding to the positions of the four upper buffer springs and being beneficial to the clamping of the upper ends of the upper buffer springs, the top surface of the horizontal section of the upper fixing bracket is provided with four upper abutting concave parts B corresponding to the positions of the four upper buffer springs and being beneficial to the clamping of the lower ends of the upper buffer springs, and the upper abutting concave parts B are positioned at the inner sides of the upper abutting concave parts A and are coaxial with the upper abutting concave parts A; the bottom surface of the horizontal section of the lower fixing support is provided with four lower abutting concave parts A which correspond to the positions of the four lower buffer springs and are beneficial to the clamping of the upper ends of the lower buffer springs, the top surface of the base is provided with four lower abutting concave parts B which correspond to the positions of the four lower buffer springs and are beneficial to the clamping of the lower ends of the lower buffer springs, and the lower abutting concave parts B are positioned on the outer sides of the lower abutting concave parts A and are coaxially arranged with the lower abutting concave parts A.
Further, a positioning concave part is coaxially arranged at the bottom surface of the horizontal section of the upper fixing bracket and the middle part of the top surface of the horizontal section of the lower fixing bracket; the metal rubber damping element comprises a cake-shaped metal rubber damping block and a metal rubber damping ring coaxially arranged on the outer side of the metal rubber damping block, and the upper surface and the lower surface of the metal rubber damping block are respectively attached to the bottom surfaces of the upper positioning concave part and the lower positioning concave part; the upper surface and the lower surface of the metal rubber damping ring are respectively attached to the bottom surface of the upper fixing support horizontal section and the top surface of the lower fixing support horizontal section.
Further, a plurality of adjusting screw holes which are vertically communicated are formed among the horizontal section of the upper fixing support, the metal rubber damping ring and the horizontal section of the lower fixing support, and each adjusting screw hole is internally and spirally connected with a useful adjusting bolt.
Further, the base is rectangular, and the left end and the right end of the base are respectively connected with flanges; the shell is rectangular and covers the outer side of the upper end of the base, upper connecting flanges are respectively arranged on the left side and the right side of the lower end of the shell, the upper connecting flanges are attached to the lower connecting flanges and are locked and fixed through locking bolts which vertically penetrate through, and a shock absorber fixing hole which vertically penetrates through is formed between the upper connecting flanges and the middle of the lower connecting flanges.
The other technical scheme of the invention is as follows: an adjustable double-layer metal rubber damping shock absorber working method comprises the following steps: the vibration damper is firstly adjusted to the damping range required by the actual working condition through the adjusting bolt, then the vibration damper is installed between equipment to be damped and a standard plane of the equipment through the connecting screw hole and the vibration damper mounting hole, and when vibration occurs, the upper buffer spring, the lower buffer spring, the metal rubber damping block and the metal rubber damping ring consume the vibration, so that the vibration damping effect is achieved.
Compared with the prior art, the invention has the following effects:
(1) According to the invention, the metal rubber is used as a damping material, so that the high and low temperature resistance, corrosion, aging and other capacities of the shock absorber are enhanced, the service life of the shock absorber is prolonged, and the application field of the shock absorber is widened;
(2) According to the invention, a composite structure of metal rubber and a spring is adopted, the rigidity of the shock absorber is mainly regulated through the spring, the damping of the shock absorber is increased through the metal rubber damping element, and the integral rigidity and the damping of the shock absorber can be regulated to the most suitable performance parameter interval in practical application through the combination of the metal rubber damping element and the spring, so that the comprehensive performance of the shock absorber is improved;
(3) According to the invention, the adjusting bolts are arranged between the upper and lower fixing brackets and the metal rubber damping ring, the relative density of the metal rubber damping ring and the metal rubber damping block can be fixedly changed through the fixing strength of the adjusting bolts to change the energy consumption factor of the metal rubber, so that the damping of vibration reduction can be adjusted in a certain range through the adjusting bolts, and the actual working conditions matched with the adjusting bolts can be adapted in actual application;
(4) The spring arrangement mode adopts a structure with an upper layer and a lower layer which are connected in series, and four buffer springs are obliquely arranged in parallel in a single layer, so that the stability of the shock absorber is increased, and the shock absorber plays a role in vibration absorption in all directions.
Description of the drawings:
FIG. 1 is a schematic cross-sectional front view of an embodiment of the present invention;
FIG. 2 is a schematic view of the internal perspective configuration of an embodiment of the present invention;
FIG. 3 is a schematic top view of an embodiment of the present invention;
FIG. 4 is a schematic perspective view of an embodiment of the present invention;
FIG. 5 is a schematic view of a partially exploded view of an embodiment of the present invention
FIG. 6 is a schematic perspective view of an end cap in accordance with an embodiment of the present invention;
FIG. 7 is a schematic perspective view of an upper fixing bracket according to an embodiment of the present invention;
fig. 8 is a schematic perspective view of a lower fixing bracket according to an embodiment of the present invention.
In the figure:
1-a base; 2-a housing; 3-end caps; 4-upper fixing support; 401-horizontal segment; 402-vertical segments; 5-a lower fixing bracket; 501-horizontal segment; 502-vertical section; 6-an upper spring assembly; 601-upper buffer spring; 7-a lower spring assembly; 701-a lower buffer spring; 8-connecting screw holes; 9-a first stepped hole; 10-an upper limit flange; 11-limiting metal rubber rings A; 12-upper buffer gap; 13-a lower limit flange; 14-limiting metal rubber ring B; 15-second stepped holes; 16-lower buffer gap; 17-pre-tightening screw holes; 18-upper abutment recess a; 19-upper abutment recess B; 20-lower abutment recess a; 21-lower abutment recess B; 22-positioning columns; 23-a metal rubber damping block; 24-a metal rubber damping ring; 25-adjusting screw holes; 26-lower connecting flanges; 27-upper connecting flanges; 28-locking bolts; 29-damper securing holes.
The specific embodiment is as follows:
the invention will be further described with reference to the drawings and examples for the purpose of more clearly explaining the invention, it being apparent that the drawings are only some of the embodiments of the invention.
As shown in fig. 1 to 8, the adjustable double-layer metal rubber damping shock absorber comprises a base 1 and a shell 2 fixedly connected to the base 1, wherein an end cover 3, an upper fixing support 4 and a lower fixing support 5 are coaxially arranged between the inner top surface of the shell 2 and the base 1 in sequence from top to bottom, an upper spring assembly 6 is connected between the end cover 3 and the upper fixing support 4, a metal rubber damping element is arranged between the upper fixing support 4 and the lower fixing support 5, and a lower spring assembly 7 is connected between the lower fixing support 5 and the base 1.
In this embodiment, the upper fixing bracket 4 and the lower fixing bracket 5 are both T-shaped and are disposed opposite to each other, and the vertical section 402 of the upper fixing bracket upwardly penetrates through the end cover 3 and the housing 2, and a connecting screw hole 8 for connecting with a device (mechanical device, electronic device, optical device, etc.) requiring vibration reduction is formed in the middle of the top surface.
In this embodiment, the center of the housing 2 and the end cover 3 is coaxially provided with a first stepped hole 9 for facilitating the vertical section 402 of the upper fixing support to pass through, and the large hole diameter and the small hole diameter of the first stepped hole are both larger than the outer diameter of the vertical section of the upper fixing support so as to facilitate the vertical movement of the upper fixing support; the outer wall of the vertical section 402 of the upper fixing support is provided with an annular upper limit flange 10, the upper side of the upper limit flange 10 is provided with a limit metal rubber ring A11 fixedly sleeved on the outer side of the vertical section, the step surface of the limit metal rubber ring A11 and the first step hole 9 is provided with an upper buffer gap 12, and the size of the upper buffer gap is determined according to the actual maximum vibration reduction limit value; when the vibration born by the shock absorber reaches a limit value, the upper fixing support moves vertically upwards, and the limiting metal rubber ring A is abutted against the step surface of the first step to limit and prevent impact.
In this embodiment, an annular lower limit flange 13 is disposed on the outer wall of the lower end of the vertical section 502 of the lower fixing support, a limit metal rubber ring B14 fixedly sleeved on the outer side of the vertical section is disposed on the lower side of the lower limit flange 13, and the bottom surface of the limit metal rubber ring B14 is located on the lower side of the bottom surface of the vertical section 502 of the lower fixing support; the middle part of the base 1 vertically penetrates through a second stepped hole 15 which is beneficial to the lower end of the vertical section 502 of the lower fixed support to extend into, and the large hole diameter of the second stepped hole is larger than the outer diameter of the vertical section of the lower fixed support so as to vertically move with the lower fixed support; a lower buffer gap 16 is arranged between the bottom surface of the limiting metal rubber ring B14 and the step surface of the second step hole 15, and the size of the lower buffer gap is determined according to the actual maximum vibration reduction limit value; when the vibration born by the shock absorber reaches the limit value, the lower fixing support moves downwards vertically, and the limiting metal rubber ring B is abutted against the step surface of the second step to limit and prevent impact.
In this embodiment, the upper spring assembly 6 is disposed between the horizontal section 401 of the upper fixing support and the bottom surface of the end cover 3, the upper spring assembly 6 includes four upper buffer springs 601 uniformly distributed circumferentially around the axis of the upper fixing support 4, the upper buffer springs 601 are obliquely disposed, and the upper and lower ends of the upper buffer springs are respectively abutted against the end cover 3 and the horizontal section 401 of the upper fixing support; the lower spring assembly 7 is arranged between the horizontal section 501 of the lower fixing support and the top surface of the base 1, the lower spring assembly 7 comprises four lower buffer springs 701 uniformly distributed circumferentially around the axis of the lower fixing support 5, the lower buffer springs 701 are obliquely arranged, the upper ends and the lower ends of the lower buffer springs 701 are respectively abutted against the horizontal section 501 of the lower fixing support and the base 1, and the inclination directions of the lower buffer springs 701 and the upper buffer springs 601 are opposite. Preferably, the four upper buffer springs of the upper layer are the same in structural size as the four lower buffer springs of the lower layer. Due to the adoption of the novel structure shared by the series connection and the parallel connection of the buffer springs, the vibration damper can be more fit with the vibration damping environment of the actual working condition due to the serial connection structure of the upper layer and the lower layer, the vibration amplitude of the vibration damper is reduced and the stability of the vibration damper is increased due to the parallel connection structure, and the whole structure of the vibration damper is more compact and reasonable; and four inclined springs which are uniformly distributed on a single layer can realize vibration reduction in three directions of X, Y, Z, so that the device is more suitable for actual multidirectional vibration reduction working conditions.
In this embodiment, a pretension screw hole 17 coaxially arranged with the second stepped hole 15 and used for matching with the pretension bolt is provided in the middle of the bottom surface of the vertical section 502 of the lower fixing bracket. When the device is used, the end cover, the upper fixing support and the lower fixing support can be pulled to move downwards through the cooperation of the pre-tightening bolt and the pre-tightening screw hole, and then the upper buffer spring and the lower buffer spring are extruded to a certain extent, so that the pre-tightening effect is achieved.
In this embodiment, the bottom surface of the end cover 3 is provided with four upper abutment concave portions a18 corresponding to the positions of the four upper buffer springs 601 and facilitating the clamping of the upper ends of the upper buffer springs 601, the top surface of the horizontal section 401 of the upper fixing bracket is provided with four upper abutment concave portions B19 corresponding to the positions of the four upper buffer springs 601 and facilitating the clamping of the lower ends of the upper buffer springs 601, and the upper abutment concave portions B19 are located at the inner sides of the upper abutment concave portions a18 and coaxial with the upper abutment concave portions a 18; the bottom surface of the horizontal section 501 of the lower fixing support is provided with four lower abutting concave parts A20 corresponding to the positions of the four lower buffer springs 701 and being beneficial to the clamping of the upper ends of the lower buffer springs 701, the top surface of the base 1 is provided with four lower abutting concave parts B21 corresponding to the positions of the four lower buffer springs 701 and being beneficial to the clamping of the lower ends of the lower buffer springs 701, and the lower abutting concave parts B21 are positioned outside the lower abutting concave parts A19 and are coaxially arranged with the lower abutting concave parts A19.
In this embodiment, cylindrical positioning columns 22 are disposed at the middle parts of the upper abutment recess a, the upper abutment recess B, the lower abutment recess a and the lower abutment recess B, so as to position the buffer spring and facilitate assembly.
In this embodiment, a positioning concave portion is coaxially disposed between the bottom surface of the horizontal section 401 of the upper fixing support and the middle portion of the top surface of the horizontal section 501 of the lower fixing support; the metal rubber damping element comprises a cake-shaped metal rubber damping block 23 and a metal rubber damping ring 24 coaxially arranged outside the metal rubber damping block 23, and the upper surface and the lower surface of the metal rubber damping block are respectively attached to the bottom surfaces of the upper positioning concave part and the lower positioning concave part; the upper surface and the lower surface of the metal rubber damping ring are respectively attached to the bottom surface of the upper fixing support horizontal section and the top surface of the lower fixing support horizontal section.
In this embodiment, a plurality of adjusting screw holes penetrating up and down are provided between the horizontal section 401 of the upper fixing support, the metal rubber damping ring 24 and the horizontal section 501 of the lower fixing support, and each adjusting screw hole is internally and respectively connected with a useful adjusting bolt 25 in a threaded manner. Preferably, the number of the adjusting screw holes is four, and the adjusting screw holes are respectively positioned in the middle of the periphery. The upper end fixing frame and the lower end fixing frame are connected through an adjusting bolt, and the adjusting bolt is an inner hexagon bolt; the adjusting bolt is connected with the upper fixing support and the lower fixing support on one hand, and on the other hand, the relative density of the metal rubber damping elements (the metal rubber damping blocks and the metal rubber damping rings) can be changed by changing the pre-tightening amount of the adjusting bolt, so that the damping of the shock absorber can be adjusted within a certain range.
In this embodiment, the base 1 is rectangular, and the left and right ends of the base 1 are respectively connected with flanges 26; the shell 2 is rectangular and covers the outer side of the upper end of the base 1, upper connecting flanges 27 are respectively arranged on the left side and the right side of the lower end of the shell 2, the upper connecting flanges 27 are attached to the lower connecting flanges 26 and are locked and fixed through vertically penetrating locking bolts 28, vertically penetrating shock absorber fixing holes 29 are formed between the upper connecting flanges 27 and the middle of the lower connecting flanges 26, and the shock absorber fixing holes are used for being fixed on a standard plane of equipment, such as a plane supporting electronic equipment, an automobile suspension, a bilge of a spacecraft and a ship, and the like.
In this embodiment, the densities of the limiting metal rubber ring a and the limiting metal rubber ring B are the same and are both greater than the densities of the metal rubber damping block and the metal rubber damping ring, so that the limiting and anti-impact effects can be achieved when larger vibration and impact are encountered in actual work.
In the embodiment, the shock absorber can be used for vibration reduction of equipment, is suitable for the fields of traditional automobiles, machinery and the like, can be widely applied to the high and new fields with severe working environments such as aerospace, navigation chemical industry, nuclear energy and the like, and has wide application range.
In the embodiment, when the vibration damper is used, the damping range required by the actual working condition is firstly adjusted through the adjusting bolt, then the vibration damper is installed between equipment to be damped and a standard plane of the equipment through the connecting screw hole and the vibration damper mounting hole, and then the pre-tightening bolt is screwed into the pre-tightening screw hole and pulls the end cover, the upper fixing support and the lower fixing support to move downwards, so that the upper buffer spring and the lower buffer spring are extruded to a certain extent, and the pre-tightening effect is realized; when vibration occurs, the upper buffer spring, the lower buffer spring, the metal rubber damping block and the metal rubber damping ring consume the vibration, so that the vibration reduction and buffering effects are achieved.
The other technical scheme of the invention is as follows: an adjustable double-layer metal rubber damping shock absorber working method comprises the following steps: the vibration damper is firstly adjusted to the damping range required by the actual working condition through the adjusting bolt, then the vibration damper is installed between equipment to be damped and a standard plane of the equipment through the connecting screw hole and the vibration damper mounting hole, and when vibration occurs, the upper buffer spring, the lower buffer spring, the metal rubber damping block and the metal rubber damping ring consume the vibration, so that the vibration damping effect is achieved.
The foregoing description is only of the preferred embodiments of the invention, and all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (7)
1. An adjustable double-layer metal rubber damping shock absorber is characterized in that: the device comprises a base and a shell fixedly connected to the base, wherein an end cover, an upper fixing support and a lower fixing support are sequentially arranged between the inner top surface of the shell and the base from top to bottom, an upper spring assembly is connected between the end cover and the upper fixing support, a metal rubber damping element is arranged between the upper fixing support and the lower fixing support, and a lower spring assembly is connected between the lower fixing support and the base;
the upper fixing support and the lower fixing support are T-shaped and are oppositely arranged, the vertical section of the upper fixing support upwards penetrates through the end cover and the shell, and a connecting screw hole for connecting equipment to be damped is formed in the middle of the top surface;
the shell and the center of the end cover are coaxially provided with a first stepped hole which is beneficial to the vertical section of the upper fixing support to pass through, the outer wall of the vertical section of the upper fixing support is provided with an annular upper limit flange, the upper side of the upper limit flange is provided with a limit metal rubber ring A fixedly sleeved on the outer side of the vertical section, and an upper buffer gap is reserved between the limit metal rubber ring A and the stepped surface of the first stepped hole; an annular lower limit flange is arranged on the outer wall of the lower end of the vertical section of the lower fixed support, a limit metal rubber ring B fixedly sleeved on the outer side of the vertical section is arranged on the lower side of the lower limit flange, and the bottom surface of the limit metal rubber ring B is positioned on the lower side of the bottom surface of the vertical section of the lower fixed support; the middle part of the base vertically penetrates through a second stepped hole which is beneficial to the lower end of the vertical section of the lower fixing support to extend into, and a lower buffer gap is formed between the bottom surface of the limiting metal rubber ring B and the stepped surface of the second stepped hole;
the base is rectangular, and lower connecting flanges are respectively arranged at the left end and the right end of the base; the shell is rectangular and covers the outer side of the upper end of the base, upper connecting flanges are respectively arranged on the left side and the right side of the lower end of the shell, the upper connecting flanges are attached to the lower connecting flanges and are locked and fixed through locking bolts which vertically penetrate through, and a shock absorber fixing hole which vertically penetrates through is formed between the upper connecting flanges and the middle of the lower connecting flanges.
2. The adjustable double-layer metal rubber damping vibration damper according to claim 1, wherein: the middle part of the bottom surface of the vertical section of the lower fixing support is provided with a pre-tightening screw hole which is coaxially arranged with the second step hole and is used for being matched with the pre-tightening bolt.
3. The adjustable double-layer metal rubber damping vibration damper according to claim 1, wherein: the upper spring assembly is arranged between the horizontal section of the upper fixing support and the bottom surface of the end cover, and comprises four upper buffer springs uniformly distributed around the axis of the upper fixing support in a circumference manner, wherein the upper buffer springs are obliquely arranged, and the upper end and the lower end of each upper buffer spring are respectively abutted against the end cover and the horizontal section of the upper fixing support; the lower spring assembly is arranged between the horizontal section of the lower fixing support and the top surface of the base, and comprises four lower buffer springs uniformly distributed around the axis of the lower fixing support in a circumference manner, wherein the lower buffer springs are obliquely arranged, the upper ends and the lower ends of the lower buffer springs are respectively abutted against the horizontal section of the lower fixing support and the base, and the inclination directions of the lower buffer springs and the upper buffer springs are opposite.
4. An adjustable double-deck metal rubber damping vibration damper according to claim 3, wherein: the bottom surface of the end cover is provided with four upper abutting concave parts A which correspond to the positions of the four upper buffer springs and are beneficial to the clamping of the upper ends of the upper buffer springs, the top surface of the horizontal section of the upper fixing bracket is provided with four upper abutting concave parts B which correspond to the positions of the four upper buffer springs and are beneficial to the clamping of the lower ends of the upper buffer springs, and the upper abutting concave parts B are positioned at the inner sides of the upper abutting concave parts A and are coaxial with the upper abutting concave parts A; the bottom surface of the horizontal section of the lower fixing support is provided with four lower abutting concave parts A which correspond to the positions of the four lower buffer springs and are beneficial to the clamping of the upper ends of the lower buffer springs, the top surface of the base is provided with four lower abutting concave parts B which correspond to the positions of the four lower buffer springs and are beneficial to the clamping of the lower ends of the lower buffer springs, and the lower abutting concave parts B are positioned on the outer sides of the lower abutting concave parts A and are coaxially arranged with the lower abutting concave parts A.
5. The adjustable double-deck metal rubber damping vibration damper according to claim 4, wherein: the middle parts of the bottom surface of the horizontal section of the upper fixing support and the top surface of the horizontal section of the lower fixing support are coaxially provided with positioning concave parts; the metal rubber damping element comprises a cake-shaped metal rubber damping block and a metal rubber damping ring coaxially arranged on the outer side of the metal rubber damping block, and the upper surface and the lower surface of the metal rubber damping block are respectively attached to the bottom surfaces of the upper positioning concave part and the lower positioning concave part; the upper surface and the lower surface of the metal rubber damping ring are respectively attached to the bottom surface of the upper fixing support horizontal section and the top surface of the lower fixing support horizontal section.
6. The adjustable double-deck metal rubber damping vibration damper according to claim 5, wherein: a plurality of adjusting screw holes which are vertically communicated are formed among the horizontal section of the upper fixing support, the metal rubber damping ring and the horizontal section of the lower fixing support, and each adjusting screw hole is internally and spirally connected with a useful adjusting bolt.
7. An adjustable double-layer metal rubber damping shock absorber working method is characterized in that: comprising the use of an adjustable double-layer metal rubber damping shock absorber according to claim 6, in operation: the vibration damper is firstly adjusted to the damping range required by the actual working condition through the adjusting bolt, then the vibration damper is installed between equipment to be damped and a standard plane of the equipment through the connecting screw hole and the vibration damper fixing hole, and when vibration occurs, the upper buffer spring, the lower buffer spring, the metal rubber damping block and the metal rubber damping ring consume the vibration, so that the vibration damping effect is achieved.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811512027.3A CN109372943B (en) | 2018-12-11 | 2018-12-11 | Adjustable double-layer metal rubber damping shock absorber and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811512027.3A CN109372943B (en) | 2018-12-11 | 2018-12-11 | Adjustable double-layer metal rubber damping shock absorber and working method thereof |
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| CN109372943B true CN109372943B (en) | 2023-06-16 |
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| CN109926184A (en) * | 2019-03-18 | 2019-06-25 | 黄章溪 | A kind of small-sized medicinal material milling device in pharmacy |
| CN110410638B (en) * | 2019-08-21 | 2020-12-08 | 浙江厚达智能科技股份有限公司 | Length-adjustable variable-resistance type traditional Chinese medicine production equipment mounting base |
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| CN108425990B (en) * | 2018-05-15 | 2023-09-29 | 福州大学 | Three-way adjusting type damper for damping equipment and working method thereof |
| CN209228939U (en) * | 2018-12-11 | 2019-08-09 | 福州大学 | Adjustable double-deck metal-rubber damping shock absorber |
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