CN116732829B - Double-phase lifting damping floating slab damping mechanism for track traffic - Google Patents

Double-phase lifting damping floating slab damping mechanism for track traffic Download PDF

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Publication number
CN116732829B
CN116732829B CN202310994284.XA CN202310994284A CN116732829B CN 116732829 B CN116732829 B CN 116732829B CN 202310994284 A CN202310994284 A CN 202310994284A CN 116732829 B CN116732829 B CN 116732829B
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China
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damping
oil
liquid
cavity
turbine
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CN116732829A (en
Inventor
李晟
闫晓宇
欧丽娟
白春阳
晋军
张成龙
常宁
刘小燕
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Tianjin Line 3 Rail Transit Operation Co Ltd
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Tianjin Line 3 Rail Transit Operation Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B19/00Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B1/00Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B19/00Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
    • E01B19/003Means for reducing the development or propagation of noise
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/30Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

The invention discloses a double-phase lifting damping floating plate damping mechanism for track traffic, which belongs to the field of damping mechanisms for track traffic and comprises a floating plate body and damping cylinders arranged between the floating plate body and a foundation, wherein a buffer piece comprises elastic damping metal balls and cooling oil liquid, the elastic damping metal balls and the cooling oil liquid are respectively positioned in a solid phase cavity and a liquid phase cavity, the solid phase cavity and the liquid phase cavity are respectively positioned in the inner spaces of the damping cylinders on the upper side and the lower side of a valve plate, and the damping metal balls are uniformly distributed in the solid phase cavity. This double-phase promotion damped track is with floating slab damper uses shock attenuation metal ball to replace the spring structure among the prior art, and the cooperation is the use of fluid for the heat dissipation, can realize the high efficiency shock attenuation effect of solid-liquid double-phase to can utilize the flow of shock attenuation metal ball and fluid to give off fast the heat of floating slab, carry out the high-efficient clearance simultaneously to railway ballast, the effectual functionality of improvement floating slab itself and more energy-concerving and environment-protective, reliable and stable.

Description

Double-phase lifting damping floating slab damping mechanism for track traffic
Technical Field
The invention relates to the technical field of damping mechanisms for rail transit, in particular to a floating slab damping mechanism for the rail transit with double-phase lifting damping.
Background
The floating slab is a structure which is arranged above the foundation in a state similar to suspension, the whole shape of the floating slab is similar to a plate structure, the floating slab is connected with the foundation through a buffer mechanism, and a plane area for installing rails and railway ballasts is arranged above the floating slab.
For example, chinese patented patent No. CN112501955B discloses a damper type floating slab track, a shear hinge connecting the slab with another slab, and a spring viscous damper assembly disposed below the rail and inside the floating slab for damping vibration. The invention has the advantages that: the spring viscous damper replaces the traditional steel spring as the vibration isolation element, and reasonably matches the parameters of the elastic element, so that not only is the high-frequency vibration effectively restrained, but also the low-frequency resonance energy of the track slab is absorbed, the defect that the steel spring floating slab track restrains the low-frequency vibration is overcome, and the vibration isolation frequency range of the floating slab track is enlarged. The damper assembly is convenient to install and disassemble and is convenient for later overhauling and maintenance. The damper converts kinetic energy into heat energy for dissipation, and has a simple structure and stable movement when reciprocating.
However, the above prior art document still has the following problems in practical use: the damping part mainly comprises a spring, the top end of the spring and the inner structure of the floating plate are directly fixed, the bottom end of the spring is fixed on a structural member similar to a valve plate, the damping effect of the spring is achieved through the spring, and the floating plate is in a relatively high-temperature state after repeatedly running and rolling through a railway vehicle, the damping mechanism also achieves the damping purpose through repeated deformation of the spring and can generate a large amount of heat, the contact area of the spring and air is limited, and therefore the heat dissipation performance of the spring and the heat dissipation effect on a rail area above the floating plate are poor.
Disclosure of Invention
The invention aims to provide a floating slab damping mechanism for double-phase lifting damping track traffic, which aims to solve the problems that in the prior art, after a track vehicle repeatedly runs and rolls, a slab is in a relatively high-temperature state, a damping mechanism also generates a large amount of heat through repeated deformation of a spring to realize the purpose of damping, and the contact area between the spring and air is limited, so that the self heat dissipation performance of the spring and the heat dissipation effect on a rail region above the floating slab are poor.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a diphase promotes damped track traffic and uses floating slab damper, includes the floating slab body and installs the shock-absorbing cylinder between floating slab body and ground, be provided with the bolster in the shock-absorbing cylinder, this bolster sets up between the end inner wall of shock-absorbing cylinder and valve plate, and the lower terminal surface of valve plate then links to each other with the fixed plate through the slide bar of vertical slip at the shock-absorbing cylinder diapire, and the fixed plate then fixes the up end at the ground to the up end of floating slab body is used for installing the track, the bolster includes elasticity shock attenuation metal ball and cooling oil liquid, and both are located solid phase chamber and liquid phase chamber respectively, and solid phase chamber and liquid phase chamber are located the shock-absorbing cylinder inner space of valve plate upper and lower both sides respectively, and shock attenuation metal ball evenly distributed in the solid phase chamber.
Preferably, an oil cavity is arranged in the shock-absorbing metal ball, heat conduction oil is filled in the oil cavity, the oil cavity is communicated with micropores with thin middle and thick two ends, and the micropores are formed in the ball wall of the shock-absorbing metal ball in a penetrating manner.
Preferably, the avris in liquid phase chamber is provided with the receiver, the receiver passes through feed liquor pipe and drain pipe and liquid phase chamber intercommunication to fluid in the receiver is not full of the state, and the left end of two pipelines all is provided with the pressure valve simultaneously.
Preferably, a first pipeline which is horizontally distributed is arranged above the floating plate body, a second pipeline is arranged on the side of the floating plate body, air holes which are distributed towards the railway ballast are respectively arranged on the two groups of pipelines, and the tail ends of the two groups of pipelines are respectively communicated with the input end and the output end of the air box.
Preferably, a first turbine and a fan blade are arranged in the air box, the first turbine and the fan blade are respectively arranged at two ends of the rotating shaft, the space where the first turbine and the fan blade are located is mutually separated, the space where the turbine is located is communicated with the oil flow path, and the input end and the output end of the space where the fan blade is located are respectively communicated with the second pipeline and the first pipeline.
Preferably, the gas box is installed in a liquid inlet pipe, the output end of the liquid inlet pipe is communicated with the input end of the internal space where the turbine is located, and the space is further provided with an output end opening for circulating oil.
Preferably, the gas box is fixed on the valve plate, and meanwhile, the bottom end opening of the internal space where the turbine is located in the gas box is communicated with the liquid phase cavity through the pressure port, and when the pressure is too high, oil enters the space where the turbine is located through the pressure port and enters the solid phase cavity through the opening arranged in the internal space, and meanwhile, the oil in the liquid phase cavity is identical with the oil in the damping metal ball.
Preferably, the back of the first turbine is also provided with a second turbine installed on the rotating shaft.
Compared with the prior art, the invention has the beneficial effects that: according to the floating slab damping mechanism for the double-phase lifting damping track traffic, the damping metal balls are used for replacing a spring structure in the prior art, the high-efficiency damping effect of the solid-liquid double phases can be achieved by matching with the use of oil for heat dissipation, heat of the floating slab can be rapidly dissipated by utilizing the flowing of the damping metal balls and the oil, railway ballasts can be effectively cleaned, the functionality of the floating slab is effectively improved, the energy is saved, the environment is protected, and the floating slab is stable and reliable;
1. the damping metal ball is used, the heat absorption capacity of the buffer piece can be improved by increasing the distribution area of the buffer piece in the damping cylinder, the heat absorption efficiency of the whole buffer piece to the floating plate is effectively improved, meanwhile, the oil liquid in the damping metal ball and the micropores on the surface are arranged, the oil liquid can circularly flow in the solid phase cavity by utilizing the extrusion effect generated in the damping process, and the heat dissipation and damping effects are improved;
2. the structural design of the first pipeline and the second pipeline can utilize the transportation of air flow in the air box and the rapid dissipation of moisture and heat in the railway ballast, so that the influence on the function of the railway ballast is avoided;
further, the turbine and the structural design of the fan blades can drive the fan blades to rotate and generate air flow through the flow of oil liquid driven by the movement of the valve plate, and the purpose of generating the air flow by utilizing the operation of the damping mechanism is achieved according to the different directions of the air flow, so that the railway ballast is subjected to more efficient, energy-saving and stable dehumidification and cooling operation.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view showing the internal structure of a damper cylinder according to a first embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a shock absorbing metal ball according to the present invention;
FIG. 4 is a schematic cross-sectional view of a floating plate according to a second embodiment of the present invention;
FIG. 5 is a schematic view showing the internal structure of a gas box according to a second embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of a damper cylinder according to a third embodiment of the present invention;
FIG. 7 is a schematic top view of the valve plate of FIG. 6 according to the present invention;
FIG. 8 is a schematic view of the valve plate of FIG. 7 in a bottom view;
fig. 9 is a schematic cross-sectional view of the cartridge of fig. 6 according to the present invention.
In the figure: 1. a floating plate body; 2. a shock absorbing cylinder; 3. a track; 4. a foundation; 5. a slide bar; 6. a fixing plate; 7. a valve plate; 8. a liquid phase chamber; 9. a solid phase chamber; 10. damping metal balls; 11. an oil chamber; 12. micropores; 13. a first pipe; 14. a second pipe; 15. a gas box; 16. a storage box; 17. a liquid inlet pipe; 18. a liquid outlet pipe; 19. a first turbine; 20. a rotating shaft; 21. a fan blade; 22. a pressure port; 23. and a second turbine.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-9, the present invention provides the following technical solutions:
embodiment one:
in this embodiment, in order to solve the problem existing in the prior art, the following scheme is disclosed, specifically as shown in fig. 1-3, including the floating plate body 1 and install the shock-absorbing cylinder 2 between floating plate body 1 and ground 4, be provided with the bolster in the shock-absorbing cylinder 2, this bolster sets up between the end inner wall of shock-absorbing cylinder 2 and valve plate 7, and the lower terminal surface of valve plate 7 then links to each other with fixed plate 6 through the slide bar 5 of vertical slip in shock-absorbing cylinder 2 diapire, fixed plate 6 then fixes the up end at ground 4, and the up end of floating plate body 1 is used for installing track 3, the bolster includes elastic damping metal ball 10 and cooling oil, both are located solid phase chamber 9 and liquid phase chamber 8 respectively, and solid phase chamber 9 and liquid phase chamber 8 are located the shock-absorbing cylinder 2 inner space of valve plate 7 upper and lower both sides respectively, and shock-absorbing metal ball 10 evenly distributes in solid phase chamber 9, adopt shock-absorbing metal ball 10 to replace the metal spring to realize the cushioning function, at first, the lower terminal surface of valve plate 7 then links to each other through vertical slip at the slide in shock-absorbing cylinder 2 diapire 5, the fixed plate 6 then fixes the up end at ground 4, and the up end of floating plate 1 is used for installing track 3, the up end, the bolster contains elastic damping metal ball 10 and cooling metal ball 10, both have more than the full impact force can be compared in the metal ball in the solid phase chamber and the shock-absorbing cylinder 10 can fully because of the metal ball has the full impact pad effect in the metal ball that the shock-absorbing plate has in the full-absorbing plate 1.
Because the repeated deformation of the damping metal ball 10 is the same as that of the spring, certain heat can be generated, in this embodiment, in order to further solve the heating problem caused by the repeated deformation and extrusion of the buffer member, a scheme is disclosed, as shown in fig. 3, in particular, the damping metal ball 10 is provided with an oil cavity 11, the oil cavity 11 is filled with heat conduction oil, the oil cavity 11 is communicated with micropores 12 with thick middle thin two ends, the micropores 12 are formed on the wall of the damping metal ball 10 in a penetrating manner, the damping metal ball 10 is in a conventional state due to the surface tension of the liquid in the damping metal ball 10, so that the damping metal ball cannot flow out from the micropores 12 on the damping metal ball 10, after the damping metal ball 10 is subjected to compression deformation, the oil in the damping metal ball can pass through the damping metal ball 10 to enter into the gaps between the damping metal balls 10 in the solid phase cavity 9, on one hand, on the other hand, the relative friction between the damping metal balls 10 can be slowed down, the heat generated due to friction is greatly reduced, and the noise reduction effect is better.
Embodiment two:
in the actual working process of the mechanism, the oil in the liquid phase cavity 8 is in a relatively high-temperature state because of heat absorption and repeated compression, and the service life of the oil can be greatly reduced in the past for a long time, so in order to solve the problem, the embodiment also discloses a scheme, as shown in fig. 4, the side of the liquid phase cavity 8 is provided with a storage box 16, the storage box 16 is communicated with the liquid phase cavity 8 through a liquid inlet pipe 17 and a liquid outlet pipe 18, the oil in the storage box 16 is in an unfilled state, meanwhile, the left ends of the two pipelines are both provided with pressure valves, when the valve plate 7 moves relatively upwards, the liquid phase cavity 8 is in a negative pressure state, therefore, the oil in the storage box 16 can enter the liquid phase cavity 8 through the liquid outlet pipe 18, and when the valve plate 7 moves relatively downwards, the oil can enter the storage box 16 through the liquid inlet pipe 17, and therefore, during the reciprocating flow, the oil in a relatively high-temperature working area can enter the storage box 16, and the purpose of automatically cooling the oil is achieved.
The ballast of the floating slab upper end is contacted with the track 3 and the vehicle more tightly, so that the ballast of the floating slab upper end is noise-reduced and shock-absorbing in the region is larger in requirement and higher in temperature, and under the condition of overcast and rainy weather, a large amount of moisture is accumulated in ballast gaps and the ballast above, so that the temperature of the moisture is slowly emitted and the noise-reducing and shock-absorbing effect is influenced to a certain extent, and therefore, in order to solve the problem, the scheme is also disclosed in the embodiment, and particularly as shown in fig. 4, a first pipeline 13 which is horizontally distributed is arranged above the floating slab body 1, a second pipeline 14 is arranged on the side of the floating slab body 1, air holes which are distributed towards the ballast are respectively arranged on the two groups of pipelines, the tail ends of the two groups of pipelines are respectively communicated with the input end and the output end of the air box 15, an air flow conveying mechanism is arranged in the air box 15, and the air flow conveying mechanism can generate an air flow conveying effect when the mechanism is operated, and the second pipeline 14 is in a negative pressure state, so that the air flow is in the vicinity of the air box is quickly blown out of the ballast and the ballast is quickly cooled down by the air box 13, and the air flow is prevented from being blown out of the ballast in the air gaps, and the ballast is quickly cooled down by the ballast.
In this embodiment, one of the installation modes of the air box 15 is disclosed, specifically, as shown in fig. 4 and 5, a first turbine 19 and a fan blade 21 are provided in the air box 15, and the first turbine 19 and the fan blade 21 are respectively installed at two ends of the rotating shaft 20, the spaces where the two are located are separated from each other, the space where the turbine is located is communicated with the oil flow path, the input end and the output end of the space where the fan blade 21 is located are respectively communicated with the second pipeline 14 and the first pipeline 13, the air box 15 is installed in the liquid inlet pipe 17, the output end of the liquid inlet pipe 17 is communicated with the input end of the internal space where the turbine is located, the space is further provided with an opening for circulating oil, the oil in the liquid inlet pipe 17 can impact on the turbine 19 during flowing, so that the turbine 19 can drive the rotating shaft 20 rotatably installed in the air box 15 to rotate, and therefore the fan blade 21 can be synchronously in a rotating state, the air flow conveying effect can be generated by using the fan blade 21 to rotate, no need of equipment such as a motor, the driving is more energy-saving, the environment-friendly, the structure is relatively more stable, and the response is relatively more stable.
Embodiment III:
in this embodiment, another scheme is disclosed, as shown in fig. 6-9, specifically, the gas box 15 is fixed on the valve plate 7, meanwhile, the bottom opening of the internal space where the turbine is located in the gas box 15 is communicated with the liquid phase cavity 8 through the pressure port 22, when the pressure is too large, the oil enters the space where the turbine is located through the pressure port 22 and enters the solid phase cavity 9 through the opening formed in the internal space, meanwhile, the oil in the liquid phase cavity 8 is the same as the oil in the shock-absorbing metal ball 10, the back of the first turbine 19 is also provided with the second turbine 23 installed on the rotating shaft 20, the gas box 15 in this scheme is arranged in the solid phase cavity 9, and the two spaces of solid and liquid are also communicated through the opening on the side of the gas box 15 and the pressure port 22 installed at the bottom end, therefore when the valve plate 7 moves relatively downwards, the liquid in the liquid phase cavity 8 also can partly pass through the pressure port 22 and enter the solid phase cavity 9, so that the heat dissipation efficiency of the solid phase cavity 9 can be conveniently increased, the shock absorption effect is improved, when the valve plate 7 moves downwards relatively, the liquid correspondingly drives the rotating shaft 20 to rotate through the first turbine 19 in the flowing process, when the valve plate 7 moves upwards relatively, the liquid in the solid phase cavity 9 drives the rotating shaft 20 to rotate through the second turbine 23, so that the reverse rotation of the fan blade 21 can generate air flows with different flow directions, the dehumidification and cooling efficiency of the ballast above are improved, in the scheme, the relatively balanced flow of the liquid in the liquid phase cavity 8 can be ensured only by selecting a pressure valve and a pressure port with proper specifications, and the fan blade 21 which can generate the air flows in the forward and reverse rotation is common equipment, so that the specific specifications are not further disclosed in the scheme.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (1)

1. The utility model provides a diphase promotes damped track traffic and uses floating slab damper, includes floating slab body (1) and installs shock-absorbing cylinder (2) between floating slab body (1) and ground (4), be provided with the bolster in shock-absorbing cylinder (2), this bolster sets up between the end inner wall of shock-absorbing cylinder (2) and valve plate (7), and the lower terminal surface of valve plate (7) then links to each other with fixed plate (6) through slide bar (5) at shock-absorbing cylinder (2) diapire perpendicularly, and fixed plate (6) then fixes the up end at ground (4) to the up end of floating slab body (1) is used for installing track (3), its characterized in that: the buffer piece comprises elastic damping metal balls (10) and cooling oil liquid, wherein the elastic damping metal balls and the cooling oil liquid are respectively positioned in a solid-phase cavity (9) and a liquid-phase cavity (8), the solid-phase cavity (9) and the liquid-phase cavity (8) are respectively positioned in the inner space of a damping cylinder (2) on the upper side and the lower side of a valve plate (7), and the damping metal balls (10) are uniformly distributed in the solid-phase cavity (9);
an oil cavity (11) is formed in the shock-absorbing metal ball (10), heat conduction oil is filled in the oil cavity (11), the oil cavity (11) is communicated with micropores (12) with thin middle and thick two ends, and the micropores (12) are communicated with the ball wall of the shock-absorbing metal ball (10);
the side of the liquid phase cavity (8) is provided with a storage box (16), the storage box (16) is communicated with the liquid phase cavity (8) through a liquid inlet pipe (17) and a liquid outlet pipe (18), oil in the storage box (16) is in an unfilled state, and meanwhile, the left ends of the two pipelines are provided with pressure valves;
when the valve plate (7) moves upwards relatively, the liquid phase cavity (8) is in a negative pressure state, oil in the storage box (16) can enter the liquid phase cavity (8) through the liquid outlet pipe (18), and when the valve plate (7) moves downwards relatively, the oil can enter the storage box (16) through the liquid inlet pipe (17);
a first pipeline (13) which is horizontally distributed is arranged above the floating slab body (1), a second pipeline (14) is arranged on the side of the floating slab body (1), air holes which are distributed towards the railway ballast are respectively arranged on the two groups of pipelines, and the tail ends of the two groups of pipelines are respectively communicated with the input end and the output end of the air box (15);
the second pipeline (14) is in a negative pressure state, and the nearby air flow is conveyed into the first pipeline (13) by the air box (15) and blown out through the air holes;
the air box (15) is internally provided with a first turbine (19) and fan blades (21), the first turbine (19) and the fan blades (21) are respectively arranged at two ends of the rotating shaft (20), the space where the first turbine (19) and the fan blades (21) are positioned is separated from each other, the space where the turbine is positioned is communicated with an oil flow path, and the input end and the output end of the space where the fan blades (21) are positioned are respectively communicated with the second pipeline (14) and the first pipeline (13);
the oil in the liquid inlet pipe (17) can impact on the first turbine (19) when flowing, the first turbine (19) can drive the rotating shaft (20) rotatably arranged in the air box (15) to rotate, and the fan blades (21) can be synchronously in a rotating state;
the gas box (15) is arranged in the liquid inlet pipe (17), the output end of the liquid inlet pipe (17) is communicated with the input end of the internal space where the turbine is located, and the space is also provided with an output end opening for circulating oil.
CN202310994284.XA 2023-08-09 2023-08-09 Double-phase lifting damping floating slab damping mechanism for track traffic Active CN116732829B (en)

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Application Number Priority Date Filing Date Title
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CN116732829B true CN116732829B (en) 2023-11-07

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002221246A (en) * 2001-01-26 2002-08-09 Tsunekichi Imai Shock absorptive ball damper
CN102345701A (en) * 2011-10-17 2012-02-08 江苏大学 Vehicle oil gas spring with adjustable rigidity and damping
CN102359528A (en) * 2011-08-15 2012-02-22 江苏大学 Hydropneumatic spring of automotive suspension system
CN210164844U (en) * 2019-07-17 2020-03-20 海旭清 Electromechanical operation vibration absorption device for coal mine
CN211901422U (en) * 2020-03-17 2020-11-10 上海日炙机械制造有限公司 Automobile shock absorber ware that possesses syllable-dividing effect
CN112501955A (en) * 2020-12-04 2021-03-16 华东交通大学 Damper type floating plate rail
CN115897303A (en) * 2022-11-17 2023-04-04 西安交通工程学院 Subway is with antidetonation buffer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002221246A (en) * 2001-01-26 2002-08-09 Tsunekichi Imai Shock absorptive ball damper
CN102359528A (en) * 2011-08-15 2012-02-22 江苏大学 Hydropneumatic spring of automotive suspension system
CN102345701A (en) * 2011-10-17 2012-02-08 江苏大学 Vehicle oil gas spring with adjustable rigidity and damping
CN210164844U (en) * 2019-07-17 2020-03-20 海旭清 Electromechanical operation vibration absorption device for coal mine
CN211901422U (en) * 2020-03-17 2020-11-10 上海日炙机械制造有限公司 Automobile shock absorber ware that possesses syllable-dividing effect
CN112501955A (en) * 2020-12-04 2021-03-16 华东交通大学 Damper type floating plate rail
CN115897303A (en) * 2022-11-17 2023-04-04 西安交通工程学院 Subway is with antidetonation buffer

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