CN114033828A - Novel hydraulic inertia capacity shock absorption device - Google Patents
Novel hydraulic inertia capacity shock absorption device Download PDFInfo
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- CN114033828A CN114033828A CN202111346531.2A CN202111346531A CN114033828A CN 114033828 A CN114033828 A CN 114033828A CN 202111346531 A CN202111346531 A CN 202111346531A CN 114033828 A CN114033828 A CN 114033828A
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- hydraulic cylinder
- piston
- hydraulic
- connecting piece
- ball
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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
- F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
- F16F7/1034—Vibration-dampers; Shock-absorbers using inertia effect of movement of a liquid
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
Abstract
The invention provides a novel hydraulic inertia capacity damping device, wherein a piston in the device is in clearance fit with a hydraulic cylinder, a through hole is formed in the piston, when the damping device works, a part of working liquid flows into a working space on the other side of the piston through a clearance between the piston and the hydraulic cylinder and the through hole in the piston, and the flow of the working liquid generates a nonlinear damping force with a low velocity index, so that overlarge damping force can be limited, and the device is effectively protected; the ball and the blocking ball are arranged in the spiral return pipe communicated with the hydraulic cylinder, so that the other part of liquid generates rotary motion along the spiral return pipe, the ball and the blocking ball roll in a reciprocating mode under the action of pressure difference, the mass amplification effect can be realized by the conversion form from the linear motion of the piston to the rotary motion of the working liquid, the inertia force is improved, the coupling effect of the damping force and the inertia force in the spiral return pipe is weakened, the damping performance is improved, and the working liquid adopts the dimethyl silicon oil to increase the damping output level.
Description
Technical Field
The invention relates to the technical field of building shock absorption control, in particular to a novel hydraulic type inertia capacity shock absorption device.
Background
In the hydraulic type inertia capacity element, liquid rotates and flows in the return pipe, so that not only inertia force but also damping force are generated, the section of the return pipe is usually reduced in order to obtain larger inertia force, but the damping force is obviously increased to cover the action of the inertia force, and the application of the hydraulic type inertia capacity element is greatly limited by the coupling effect of the inertia force and the damping force.
Disclosure of Invention
The invention aims to provide a novel hydraulic inertia capacity damping device, which improves the inertia force and reduces the damping force in a return pipe at the same time by filling steel balls in the return pipe, thereby weakening the coupling effect of inertia and damping.
The invention provides a novel hydraulic inertia capacity damping device which comprises a hydraulic cylinder, wherein a piston rod is inserted in the hydraulic cylinder, a piston is arranged in the hydraulic cylinder and fixedly connected with the piston rod, a first connecting piece is arranged at one end of the hydraulic cylinder, a second connecting piece is arranged at the other end of the hydraulic cylinder, the first connecting piece is fixedly connected with the piston rod, the second connecting piece is fixedly connected with the hydraulic cylinder, a spiral return pipe is sleeved outside the hydraulic cylinder, two ends of the spiral return pipe are communicated with the inside of the hydraulic cylinder, a plurality of balls are arranged in the spiral return pipe, and blocking balls are arranged on two sides of the plurality of balls respectively.
Furthermore, the piston is in clearance fit with the hydraulic cylinder, and a plurality of through holes are uniformly formed in the piston along the circumferential direction of the piston.
Furthermore, the two ends inside the hydraulic cylinder are provided with sealing sleeves, the outer side of each sealing sleeve is provided with a fastening ring in a sleeved mode, the fastening rings are connected with the inner wall of the hydraulic cylinder in a screwed mode, the sealing sleeves are fixed in the hydraulic cylinder through the fastening rings, and the piston rods are connected with the two sealing sleeves in an inserted mode.
Furthermore, the diameters of the two ends of the piston rod are the same as the inner diameter of the sealing sleeve.
Further, the diameter of the ball is smaller than the inner diameter of the spiral return pipe, and the diameter of the blocking ball is larger than or equal to the inner diameter of the spiral return pipe.
Further, the liquid in the liquid cylinder is dimethyl silicone oil.
Furthermore, a sealing groove is formed in the inner wall of the sealing sleeve, and a sealing rubber ring is fixedly mounted in the sealing groove.
Furthermore, one end, close to the hydraulic cylinder, of the second connecting piece is provided with an accommodating cavity, and the depth of the accommodating cavity is larger than the depth required by the maximum stroke of the piston rod.
Furthermore, a dustproof sleeve is arranged between the first connecting piece and the hydraulic cylinder, one end of the dustproof sleeve is fixedly connected with the piston rod, and the other end of the dustproof sleeve is fixedly connected with the hydraulic cylinder.
Furthermore, the first connecting piece and the second connecting piece are provided with mounting holes, and the mounting holes are internally connected with hanging rings in a threaded manner.
The invention provides a novel hydraulic inertia capacity damping device, which increases the flowing quality in a pipe and improves the flowing inertia force of liquid by arranging a ball in a spiral return pipe which is sleeved outside a hydraulic cylinder and communicated with the hydraulic cylinder, and also reduces the damping force in the spiral return pipe, so that the coupling effect of inertia and damping is weakened, and the damping performance is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a front view of the present invention;
FIG. 2 is a half sectional view of the present invention;
fig. 3 is a partial enlarged view of a portion a in fig. 2;
FIG. 4 is a layout view of the balls and the plugging balls in the spiral return pipe according to the present invention;
description of reference numerals: 1-a hydraulic cylinder, 2-a spiral return pipe, 3-a first connecting piece, 4-a second connecting piece, 5-a lifting ring, 6-a dustproof sleeve, 7-a piston, 701-a through hole, 8-a piston rod, 9-a sealing sleeve, 901-a sealing groove, 10-a fastening ring, 11-a sealing rubber ring, 12-a ball and 13-a blocking ball;
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. 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.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
As shown in fig. 1-4, a novel hydraulic inertia-absorbing device, including a hydraulic cylinder 1, sealing sleeves 9 are respectively disposed at two ends of the interior of the hydraulic cylinder 1, a fastening ring 10 is sleeved on the outer side of each sealing sleeve 9, the fastening ring 10 is connected with the inner wall of the hydraulic cylinder 1 in a screwing manner, the sealing sleeves 9 are fixed in the hydraulic cylinder 1 through the fastening rings 10, piston rods 8 are inserted in the hydraulic cylinder 1, the piston rods 8 are connected with the hydraulic cylinder 1 through two sealing sleeves 9 in an inserting manner, the diameters of two ends of each piston rod 8 are the same as the inner diameter of the sealing sleeve 9, a sealing groove 901 is disposed on the inner wall of each sealing sleeve 9, and a sealing rubber ring 11 is fixedly disposed in the sealing groove 901 to prevent leakage. Be equipped with piston 7 in the hydraulic cylinder 1, piston 7 and piston rod 8 fixed connection drive piston 7 by piston rod 8 and carry out reciprocating motion, piston 7 and hydraulic cylinder 1 clearance fit, piston 7 evenly is equipped with a plurality of through hole 701 along its circumference, makes piston 7 divide into two work spaces that communicate each other with hydraulic cylinder 1 inside.
Because the existing hydraulic inertia capacity element generates overlarge internal force during working to cause the damage of the device, the invention realizes the protection mechanism of overlarge damping output by clearance fit of the piston 7 and the hydraulic cylinder 1 and arrangement of the through hole 701 on the piston 7 and changing the velocity damping square relation by using the small-hole torrent technology. The specific principle is that F ═ cvnC represents a damping coefficient, v represents the speed of the piston 7, n represents an index, the clearance fit between the piston 7 and the hydraulic cylinder 1 and the size of the aperture of the through hole 701 determine the value of n, and the value of n is smaller than 1 through reasonable design, so that the generated damping force cannot be very large even if the speed of the piston 7 is larger, thereby preventing the generation of excessive damping force, protecting the device and prolonging the service life of the damping device.
The one end fixedly connected with first connecting piece 3 of piston rod 8, the one end that first connecting piece 3 was kept away from to hydraulic cylinder 1 is connected with second connecting piece 4, and first connecting piece 3 and second connecting piece 4 all are used for connecting the bearing structure between the floor, and under the earthquake action, the floor produces easily and rocks to produce compression and tensile to this damping device. One end of the second connecting piece 4 close to the hydraulic cylinder 1 is provided with an accommodating cavity, the depth of the accommodating cavity is larger than the depth required by the maximum stroke of the piston rod 8, the end part of the piston rod 8 is always in contact with the bottom surface of the accommodating cavity, and the piston rod 8 is prevented from being in contact with the second connecting piece 4 to damage the damping device. Be equipped with dirt proof boot 6 between first connecting piece 3 and the hydraulic cylinder 1, the one end and the piston rod 8 fixed connection of dirt proof boot 6, the other end and the hydraulic cylinder 1 fixed connection of dirt proof boot 6 protect the junction of piston rod 8 and seal cover 9. Be equipped with the mounting hole on first connecting piece 3 and the second connecting piece 4, threaded connection has rings 5 in the mounting hole, and installation rings 5 are convenient to whole damping device's hoist and mount, and it can to take off after the hoist and mount finishes.
The outside cover of hydraulic cylinder 1 is equipped with spiral back flow pipe 2 made by seamless steel pipe, and the both ends of spiral back flow pipe 2 communicate with the workspace at piston 7 both ends respectively, are equipped with a plurality of ball 12 in the spiral back flow pipe 2, and the both sides of a plurality of ball 12 all are equipped with blocking ball 13, and the steel ball that ball 12 here adopted, the rubber ball that blocking ball 13 adopted, the diameter of ball 12 slightly is less than the internal diameter of spiral back flow pipe 2, and the diameter of blocking ball 13 slightly is greater than or equal to the internal diameter of spiral back flow pipe 2. The balls 12 weaken the coupling effect of the damping force and the inertia force in the spiral return pipe 2 on one hand, and further improve the action of the inertia force on the other hand. The two ends of the ball 12 are provided with the blocking balls 13 to prevent viscous liquid from flowing into gaps between the steel balls to influence the movement of the steel balls, and the ball 12 is not contacted with working liquid all the time in the working process. The design is that the diameter to the shutoff ball 13 wants reasonable in design, makes the working fluid can easily promote shutoff ball 13 and ball 12 motion, and the both sides of spiral back flow 2 reserve the space of ball 12 and the motion of shutoff ball 13.
The piston 7 reciprocates to force the working liquid to enter the spiral return pipe 2, the working liquid flows in the spiral return pipe 2 to generate damping force, and the damping force is in direct proportion to the length of the spiral return pipe 2 and in inverse proportion to the pipe diameter of the spiral return pipe 2. Meanwhile, the rotation motion of the working fluid generates an inertia force which is proportional to the density of the working fluid, the length of the spiral return pipe 2 and the pipe diameter of the spiral return pipe 2, so that the damping force and the inertia force are correlated, for example, the length of the spiral return pipe 2 is increased in order to increase the inertia force, and the damping force is increased accordingly. After the balls are filled in the spiral return pipe 2, the length of the working liquid is naturally reduced, the damping force is reduced, and meanwhile, the density of the balls 12 is far greater than that of the working liquid, so that the inertia force can be improved. The inertia force and the damping force can be adjusted by the number of the balls 12 and the reserved length of the two ends of the spiral return pipe 2 for the movement of the balls 12, so that the mutual influence between the damping force and the inertia force is weakened.
The conventional hydraulic inertia container mainly uses water as a damping medium, has small viscosity, and has large influence on the working state by temperature, the dimethyl silicone oil is used as the working liquid to increase the damping output level, the viscosity of the dimethyl silicone oil is higher than that of the dimethyl silicone oil, the viscosity of the dimethyl silicone oil can be selected between 10 to 300000cst, the viscosity of the dimethyl silicone oil can be selected according to actual needs, the use temperature of the dimethyl silicone oil is-60 to 200 ℃, the influence of the change of the environmental temperature on the working state is small, and the viscosity-temperature characteristic is good.
The invention provides a novel hydraulic inertial volume damping device, which has the working principle that: the first connecting piece 3 and the second connecting piece 4 are connected with a supporting structure between building floors, the supporting structure connected with the damping device is easy to shake under the action of earthquake or external force to generate reciprocating motion, the piston rod 8 is driven to reciprocate under the action of reciprocating load, the piston 7 extrudes working liquid in the hydraulic cylinder 1, a part of the working liquid flows into a working space on the other side of the piston 7 through a gap between the piston 7 and the hydraulic cylinder 1 and a through hole 701 on the piston 7, the flowing of the working liquid generates nonlinear damping force with low velocity index, the overlarge damping force can be limited, and the device is effectively protected; the other part generates rotary motion along the spiral return pipe 2, the ball 12 and the blocking ball 13 roll in a reciprocating way under the action of pressure difference, the mass amplification effect can be realized by the conversion form from the linear motion of the piston 7 to the rotary motion of the working liquid, the inertia force is improved, and the coupling effect of the damping force and the inertia force in the spiral return pipe 2 is weakened.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a novel hydraulic formula is used to and holds shock attenuation device, a serial communication port, including the hydraulic cylinder, the interpolation of hydraulic cylinder has the piston rod, be equipped with the piston in the hydraulic cylinder, the piston with piston rod fixed connection, the one end of hydraulic cylinder is equipped with first connecting piece, the other end of hydraulic cylinder is equipped with the second connecting piece, first connecting piece with piston rod fixed connection, the second connecting piece with hydraulic cylinder fixed connection, the outside cover of hydraulic cylinder is equipped with spiral back flow, the both ends of spiral back flow all with the inside intercommunication of hydraulic cylinder, be equipped with a plurality of ball, a plurality of in the spiral back flow the both sides of ball are equipped with the shutoff ball respectively.
2. The new hydraulic inertial volume damper according to claim 1, characterized in that the piston is in clearance fit with the hydraulic cylinder, and the piston is provided with a plurality of through holes uniformly along its circumference.
3. The novel hydraulic inerter damping device as claimed in claim 1, wherein sealing sleeves are respectively disposed at two ends of the interior of the hydraulic cylinder, a fastening ring is sleeved on the outer side of each sealing sleeve, the fastening ring is screwed with the inner wall of the hydraulic cylinder, the sealing sleeves are fixed in the hydraulic cylinder through the fastening rings, and the piston rods are connected with the two sealing sleeves in an inserted manner.
4. The novel hydraulic inertial volume damping device according to claim 3, characterized in that the diameter of the two ends of the piston rod is the same as the inner diameter of the sealing sleeve.
5. The new hydraulic inertia shock absorber according to claim 1, wherein the diameter of the ball is smaller than the inner diameter of the spiral return pipe, and the diameter of the blocking ball is greater than or equal to the inner diameter of the spiral return pipe.
6. The new hydraulic inertial volume damper according to claim 1, characterized in that the liquid in the hydraulic cylinder is simethicone.
7. The novel hydraulic inertial volume damping device according to claim 3, wherein a sealing groove is formed in the inner wall of the sealing sleeve, and a sealing rubber ring is fixedly mounted in the sealing groove.
8. The novel hydraulic inertial volume damping device according to claim 1, wherein an accommodating cavity is formed at one end of the second connecting piece close to the hydraulic cylinder, and the depth of the accommodating cavity is greater than the depth required by the maximum stroke of the piston rod.
9. The novel hydraulic inertial volume damping device according to claim 1, wherein a dust-proof sleeve is arranged between the first connecting piece and the hydraulic cylinder, one end of the dust-proof sleeve is fixedly connected with the piston rod, and the other end of the dust-proof sleeve is fixedly connected with the hydraulic cylinder.
10. The novel hydraulic inertial volume damping device according to claim 1, wherein mounting holes are formed in the first connecting piece and the second connecting piece, and lifting rings are connected in the mounting holes through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111346531.2A CN114033828B (en) | 2021-11-15 | 2021-11-15 | Novel hydraulic type inertial damping device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111346531.2A CN114033828B (en) | 2021-11-15 | 2021-11-15 | Novel hydraulic type inertial damping device |
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| CN114033828A true CN114033828A (en) | 2022-02-11 |
| CN114033828B CN114033828B (en) | 2023-07-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117230911A (en) * | 2023-11-16 | 2023-12-15 | 北京市建筑设计研究院有限公司 | Integrated serial-type inertial damping and shock absorbing device |
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| CN117230911A (en) * | 2023-11-16 | 2023-12-15 | 北京市建筑设计研究院有限公司 | Integrated serial-type inertial damping and shock absorbing device |
| CN117230911B (en) * | 2023-11-16 | 2024-02-06 | 北京市建筑设计研究院有限公司 | Integrated serial-type inertial damping and shock absorbing device |
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| Publication number | Publication date |
|---|---|
| CN114033828B (en) | 2023-07-14 |
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