CN111827020B - Vibration isolator with online failure monitoring device - Google Patents
Vibration isolator with online failure monitoring device Download PDFInfo
- Publication number
- CN111827020B CN111827020B CN202010602608.7A CN202010602608A CN111827020B CN 111827020 B CN111827020 B CN 111827020B CN 202010602608 A CN202010602608 A CN 202010602608A CN 111827020 B CN111827020 B CN 111827020B
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- vibration isolator
- monitoring device
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- plate
- spring
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
- E01B19/003—Means for reducing the development or propagation of noise
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B35/00—Applications of measuring apparatus or devices for track-building purposes
- E01B35/12—Applications of measuring apparatus or devices for track-building purposes for measuring movement of the track or of the components thereof under rolling loads, e.g. depression of sleepers, increase of gauge
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2201/00—Fastening or restraining methods
- E01B2201/08—Fastening or restraining methods by plastic or elastic deformation of fastener
Abstract
The invention discloses a vibration isolator with an online failure monitoring device, which comprises a vibration isolator, an outer barrel, an adjusting pad, a positioning plate, an outer barrel cover plate, a cover plate fastening screw, a fixing bolt, a positioning pin and a limiting block, wherein the outer barrel is fixedly connected with the positioning plate; the vibration isolator comprises a spring top seat, an inner cylinder, an intermediate shaft, a compression spring damping agent, a sealing ring and a monitoring device; the spring top seat is connected with the adjusting pad and the positioning plate through positioning bolts, a central step hole is formed in the top of the spring top seat, and a monitoring device is installed on the spring top seat; the monitoring device comprises a sensor, a compression nut and a mounting nut, the sensor is fixed in the mounting nut by the compression nut, and the top end of the intermediate shaft is provided with a thimble which is positioned in the same vertical direction with the sensor. The technical scheme of the invention has simple structure and convenient use and maintenance; the monitoring device is arranged, each vibration isolator works independently, and the independent monitoring device is arranged for intelligent monitoring, so that the maintenance cost can be saved; the monitoring precision is high, and transmission speed is fast, has improved maintenance efficiency greatly, improves the security.
Description
Technical Field
The invention relates to the technical field of rail vibration reduction, in particular to a vibration isolator with an online failure monitoring device.
Background
Along with the rapid development of urban rail transit, it is imperative to reduce the vibration and noise impact of rail transit on the surrounding environment, so that corresponding vibration reduction measures are adopted for components such as steel rails and track beds, especially in sensitive areas, the urban rail transit adopts a floating slab track bed steel spring damping vibration isolator or other elastic support devices to realize effective vibration reduction and noise reduction, and meanwhile, in order to prevent damage caused by accidental damage failure and fatigue failure of the vibration isolator or the elastic support device, the height change of a track floating slab needs to be regularly detected, the working condition of the vibration isolator or the elastic support device is detected, and necessary maintenance or replacement is carried out according to actual conditions to ensure the driving safety. The steel spring vibration isolator that current track traffic lines used mainly has following not enough: 1. the on-line monitoring device for failure or fracture of the reliable spring is not available, and the change of the sinking amount of the track floating slab is mainly detected by manpower periodically, so that the steel spring in the vibration isolator cannot be found and replaced in time when the steel spring fails or fractures, and the vibration attenuation effect of the whole system and the service life of other vibration isolators are influenced to a certain extent; 2. the vibration isolators are numerous, the labor intensity of manual detection is high, errors are easy to occur, the detection efficiency is low, and certain potential safety hazards exist.
Disclosure of Invention
The technical purpose is as follows: aiming at the defects of the failure monitoring accuracy and the continuity of the vibration isolator used by the existing rail transit, the invention discloses a vibration isolator with an online failure monitoring device, which has the advantages of online monitoring, high monitoring precision, convenient information feedback and high maintenance efficiency.
The technical scheme is as follows: in order to achieve the technical purpose, the invention adopts the following technical scheme:
a vibration isolator with an online failure monitoring device is arranged in a floating plate, the bottom of the vibration isolator is connected with the bottom of the floating plate, and the vibration isolator comprises a vibration isolator, an outer cylinder, an adjusting pad, a positioning plate, an outer cylinder cover plate, a cover plate fastening screw, a positioning bolt, a positioning pin and a limiting block; the isolator is installed inside the urceolus, and adjusting pad, locating plate pass through positioning bolt and the top of isolator to be connected, and the stopper is fixed in inside the urceolus, and the urceolus apron is installed at the urceolus top through apron fastening screw.
The vibration isolator comprises a spring top seat, a boss, a shaft seat, an inner cylinder, an intermediate shaft, a locking nut, a compression spring, a damping agent, a sealing ring and a detection device; the spring top seat is arranged above the inner cylinder; the compression spring and the damping agent are arranged in a spring cavity formed between the spring top seat and the inner cylinder; the isolator is installed when the urceolus is inside, fixes a position through the stopper, and restriction isolator circumferential direction limits, and the bolt hole of being convenient for adjust the mounting bolt hole and locating plate aligns.
The inner cylinder comprises a cylinder wall and a base; the center of the bottom of the base is provided with a positioning hole which is fixed on the base of the floating plate through a positioning pin, and the center position of the upper end surface of the base is fixedly connected with the shaft seat; the upper part of the inner side of the cylinder wall is provided with a step, and the side surface of the inner cylinder is in clearance fit with the bottom of the outer cylinder.
The spring top seat comprises a top plate, a bottom plate and a damping chamber, the lower end of the top plate is fixedly connected with the bottom plate, and the damping chamber is formed in the middle of the top plate; a stepped hole is formed in the center of the top plate, and an installation bolt hole is formed in the upper end face of the top plate and is sequentially connected with the adjusting pad and the positioning plate through a positioning bolt; the side face of the bottom plate is matched with the inner side face of the cylinder wall in a connecting mode, a sealing ring is arranged for sealing, the center of the bottom plate is fixedly connected with the boss, and the center holes are formed in the bottom plate and the boss.
The middle shaft is connected with the shaft seat and the bottom plate, the upper end of the middle shaft is provided with a thimble, and the middle shaft is in clearance fit with the central hole; the compression spring and the damping agent are arranged in a spring cavity formed between the bottom plate and the base, and the compression spring is sleeved with the shaft seat and the boss.
The detection device comprises a sensor, a compression nut and a mounting nut, the mounting nut is fixed in a step hole, a through hole is formed in the center of the mounting nut, the through hole is provided with a first-stage step, the hole is larger in diameter and is positioned on the upper portion of the mounting nut, and threads are arranged on the inner side face of the through hole and are connected with the compression nut; the sensor is fixed in the through hole through a compression nut, and the diameter of the thimble is smaller than the minimum aperture of the through hole and can move in the through hole in the vertical direction.
Preferably, the outer cylinder is poured inside the floating plate and fixed with the floating plate; the distance between the floating plate and the floating plate base is larger than the maximum compression amount when the vibration isolator fails.
Preferably, the distance between the top end of the ejector pin and the sensor is greater than the sum of the compression amount of the vibration isolator in normal operation and the sensing distance of the sensor, and the distance between the side surface of the bottom plate and the top end of the cylinder wall is greater than the vertical distance between the top end of the ejector pin and the sensor; the distance between the bottom of the bottom plate and the step is larger than the distance between the side surface of the bottom plate and the top end of the cylinder wall, so that the vertical distance between the thimble and the sensor is smaller than the sensing distance of the sensor under the normal working state of the vibration isolator.
Preferably, the cylinder wall, the base and the shaft seat can be integrally cast or connected in a welding mode, the shaft seat is located in the center of the upper end face of the base plate, the shaft seat and the middle shaft play a role in reinforcing the structure, and the service life is prolonged.
Preferably, the top plate, the bottom plate and the boss can be integrally cast or connected in a welding mode, and the boss and the bottom center of the bottom plate are fixedly connected and provided with a common central hole. Three mounting bolt holes which are uniformly distributed in the circumferential direction are formed in the top plate, so that the upper damping chamber vibration isolator can be conveniently mounted, and the vibration isolator can be prevented from rotating in the circumferential direction.
Preferably, compression spring installs between bottom plate and base, and the both ends cup joint respectively on boss and axle bed to restriction compression spring's horizontal migration keeps vertical state, improves the damping effect.
Preferably, the intermediate shaft is positioned in the center of the compression spring, one end of the intermediate shaft is fixedly connected with the shaft seat in a threaded connection or welding mode, the other end of the intermediate shaft penetrates through the central hole and is fixed in the damping chamber through a locking nut, and the ejector pin is arranged at the top end of the intermediate shaft; the middle shaft has the function of connecting the spring top seat and the inner cylinder under the natural state, so that the spring top seat and the inner cylinder cannot be separated under the action of the compression spring, and the compression spring is kept in a compression state; the intermediate shaft and the central hole are in clearance fit.
Preferably, the damping agent fills in the spring cavity between inner tube and spring footstock, the net volume of cavity reduces when the pressurized, damping agent accessible jackshaft and the clearance between the centre bore flow in the damping chamber of top, the damping chamber plays the volume compensation effect, alleviate the pressure that the cavity received, absorb the vibration energy that partial compression spring received simultaneously, reduce overhead damping chamber isolator bulk vibration, prevent that seal structure from damaging, and service life is prolonged, when pressure reduces, the damping agent gets back to the spring cavity through jackshaft and bottom plate centre bore clearance.
Preferably, the adjusting pads with different thicknesses are used, so that the overall height of the floating plate can be accurately adjusted, and the stability of the track is ensured.
When the vibration isolator with the online failure monitoring device is used, the bottom of the vibration isolator is connected with the bottom of the floating plate through the positioning pin; the top of the floating plate is pressurized and moves downwards, the outer barrel transmits the pressure to the spring top seat of the vibration isolator through the positioning plate and the adjusting pad, the spring top seat compresses the damping agent and the spring cavity where the compression spring is located, the net volume of the spring cavity is reduced, the damping agent absorbs acting force applied to the compression spring of a part, and the damping agent flows upwards to the damping chamber along the gap between the middle shaft and the center hole of the bottom plate under the action of the pressure.
Because the intermediate shaft and the base are fixed, when the spring top seat descends, the distance between the top end of the thimble and the sensor is shortened, and the distance between the top end of the thimble and the sensor is larger than the sensing distance of the sensor in a normal stress state, so that the vibration isolator works normally; when the compression spring fails, the overall pressure-bearing capacity of the system is reduced, the descending distance of the spring top seat exceeds a limited range, the distance between the top of the ejector pin and the sensor is smaller than the sensing distance of the sensor, signals are transmitted to the outside, and the failure of the vibration isolator at the position is displayed.
Has the advantages that: according to the vibration isolator with the online failure monitoring device, the monitoring device which works independently is arranged on the vibration isolator, so that the working state of the vibration isolator can be accurately and conveniently monitored, the labor cost is saved, and the monitoring efficiency is improved; the height of the floating plate can be quickly and conveniently adjusted by arranging the adjusting pad, the structure is simple, and the maintenance is convenient; set up mounting bolt hole and locating hole, effectively restrict the level and the circumference removal of isolator, improve life and security.
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.
FIG. 1 is a top view of the outer barrel of the present invention;
FIG. 2 is a perspective view of the outer barrel of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1 after installation of the present invention;
FIG. 4 is a cross-sectional top view of the present invention taken along the plane of the positioning plate;
FIG. 5 is a top view of the adjustment pad of the present invention;
FIG. 6 is a top plan view of the top plate of the present invention;
wherein, 1-vibration isolator, 2-outer cylinder, 3-adjusting pad, 4-positioning plate, 5-outer cylinder cover plate, 6-cover plate fastening screw, 7-positioning bolt, 8-positioning pin, 9-limiting block, 10-floating plate, 11-floating plate substrate;
101-cylinder wall, 102-top plate, 103-thimble, 104-lock nut, 105-seal ring, 106-compression spring, 107-damping agent, 108-mounting nut, 109-compression nut, 110-sensor, 111-intermediate shaft, 112-damping chamber, 113-bottom plate, 114-base, 115-boss, 116-shaft seat, 117-positioning hole, 118-step hole, 119-step, 120-mounting bolt hole, 121-center hole and 122-through hole.
Detailed Description
The present invention will be more clearly and completely described below by way of a preferred embodiment in conjunction with the accompanying drawings, without thereby limiting the scope of the invention to the described embodiment.
As shown in fig. 2 and 3, the vibration isolator with the online failure monitoring device provided by the invention comprises a vibration isolator 1, an outer cylinder 2, an adjusting pad 3, a positioning plate 4, an outer cylinder cover plate 5, a cover plate fastening screw 6, a positioning bolt 7, a positioning pin 8 and a limiting block 9; the outer cylinder 2 is poured inside the floating plate 10; as shown in fig. 1, the top end of the outer cylinder 2 is connected with the outer cylinder cover plate 5 through the cover plate fastening screw 6, the vibration isolator 1 is installed inside the outer cylinder 2, and the center of the bottom of the vibration isolator 1 is provided with a positioning hole 117 and fixed on the floating plate base 11 through a positioning pin 8.
The vibration isolator 1 comprises an inner cylinder, a spring top seat, a boss 115, a shaft seat 116, an intermediate shaft 111, a locking nut 104, a compression spring 106, a damping agent 107, a sealing ring 105 and a monitoring device; the spring top seat comprises a top plate 102, a bottom plate 113 and a damping chamber 112; as shown in fig. 6, the top plate 102 is triangular, three mounting bolt holes 120 are arranged at the upper end along the triangular direction, the top plate 102 is fixedly connected with the bottom plate 113, the upper end surface is fixedly connected with the adjusting pad 3 and the positioning plate 4 in sequence through the positioning bolts 7, and the positioning plate 4 is shown in fig. 4; the adjusting pads 3 have different thicknesses, so that the height of the floating plate 10 can be adjusted conveniently, and the shape of the adjusting pads 3 is shown in FIG. 5; a stepped hole 118 is formed in the center of the top plate 102 and used for mounting a monitoring device, and the limiting block 9 is in contact with the top plate 102 to limit the circumferential rotation angle of the vibration isolator 1, so that the vibration isolator 1 can be mounted conveniently; the bottom end of the bottom plate 113 is fixedly connected with the boss 115, and a central hole 121 is jointly formed.
The inner cylinder comprises a cylinder wall 101 and a base 114, the cylinder wall 101 is fixedly connected with the base 114, the inner side of the cylinder wall 1 is provided with a step 119, the upper part of the cylinder wall 1 is connected with the side surface of the bottom plate 113, and a sealing ring 105 is arranged on the connecting surface; the center of the upper end surface of the base 114 is fixedly connected with the shaft seat 116; the inner cylinder and the shaft seat 116 may be integrally cast or welded for connection.
One end of the intermediate shaft 111 is fixedly connected with the upper end of the shaft seat 116, the other end of the intermediate shaft penetrates through the central hole 121, and the intermediate shaft is fixed in the damping chamber 112 by a locking nut 104 to prevent the spring top seat from being separated from the inner cylinder and improve the overall structural strength; the intermediate shaft 111 is in clearance fit with the central hole 121, and the top end of the intermediate shaft 111 is provided with an ejector pin 103.
The monitoring device comprises a sensor 110, a compression nut 109 and a mounting nut 108, the mounting nut 108 is in threaded connection with a stepped hole 118, the mounting nut 108 is provided with a through hole 122, the through hole 122 comprises two concentric holes with different inner diameters, the hole with the larger inner diameter is positioned at the upper part of the mounting nut 108, is provided with an internal thread and is connected with the compression nut 109; a compression nut 109 secures the sensor 110 within the through hole 122; the diameter of the thimble 103 is smaller than the minimum diameter of the through hole 122, and the thimble can axially move in the through hole 122, and the distance between the top end of the thimble 103 and the sensor 110 is larger than the sum of the compression amount of the vibration isolator 1 in normal operation and the sensing distance of the sensor 110, and is smaller than the distance between the lower end of the top plate 102 and the top end of the cylinder wall 101.
The compression spring 106 and the damping agent 107 are arranged in a spring cavity between the spring top seat and the inner cylinder, and the upper end and the lower end of the compression spring 106 are respectively sleeved on the boss 115 and the shaft seat 116 and are used for limiting the horizontal displacement of the compression spring 106 and ensuring the vibration isolation effect of the vibration isolator 1; when the damping agent 107 is pressed, the damping agent 107 can flow upwards into the damping chamber 112 along the fit clearance between the intermediate shaft 111 and the central hole 121 to absorb vibration energy and relieve structural pressure, and after the pressure is reduced, the damping agent 107 can flow back into the spring cavity.
The top plate 102, the adjusting pad 3 and the positioning plate 4 of the vibration isolator 1 are sequentially fixed through the positioning bolts 7, and the circumferential rotation of the vibration isolator 1 is limited.
According to the vibration isolator with the online failure monitoring device, when the vibration isolator normally works, when a floating plate 10 where an outer cylinder 1 is located is subjected to external pressure, the floating plate 10 and the outer cylinder 1 integrally move downwards, the pressure is transmitted to a spring top seat of the vibration isolator 1 through an adjusting pad 3, the spring top seat moves downwards, a spring cavity where a damping agent 107 and a compression spring 106 are located is compressed, the net volume is reduced, the damping agent 107 absorbs vibration energy and flows upwards into a damping chamber along an intermediate shaft 111, a central hole 121 and a matching gap, meanwhile, the vertical distance between an ejector pin 103 and a sensor 110 is reduced, but the minimum distance is still larger than the sensing distance of the sensor 110, after the external pressure is reduced, the damping agent 107 flows back into the spring cavity, the vibration isolator 1 recovers to the original state, and the floating plate 10 recovers to the height before being pressed.
When the vibration isolator 1 fails, the distance between the top of the thimble 103 and the sensor 110 is smaller than the sensing distance of the sensor 110, a signal is transmitted to the outside, and the failure of the vibration isolator 1 is judged.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (8)
1. A vibration isolator with an online failure monitoring device is arranged in a floating plate (10), and the bottom of the vibration isolator is connected with a floating plate substrate (11); the method is characterized in that: the device comprises a vibration isolator (1), an outer cylinder (2), an adjusting pad (3), a positioning plate (4), an outer cylinder cover plate (5), a cover plate fastening screw (6), a positioning bolt (7), a positioning pin (8) and a limiting block (9); the vibration isolator (1) is installed inside the outer barrel (2), the adjusting pad (3) and the positioning plate (4) are connected with the top of the vibration isolator (1) through a positioning bolt (7), the limiting block (9) is fixed inside the outer barrel (2), and the outer barrel cover plate (5) is installed on the top of the outer barrel (2) through a cover plate fastening screw (6);
the vibration isolator (1) comprises an inner cylinder, a spring top seat, a boss (115), a shaft seat (116), an intermediate shaft (111), a locking nut (104), a compression spring (106), a damping agent (107), a sealing ring (105) and a monitoring device; the inner cylinder is connected with a floating plate base (11) through a positioning pin (8), the spring top seat is arranged above the inner cylinder, a sealing ring (105) is arranged on the connecting surface, and the boss (115) is fixed below the spring top seat; a compression spring (106) and a damping agent (107) are arranged in a spring cavity formed between the spring top seat and the inner cylinder, and a shaft seat (116) is fixed at the bottom of the spring cavity; a step hole (118) is formed in the upper end of the spring top seat, and a monitoring device is installed; the middle shaft (111) is connected with the inner cylinder and the spring top seat, the locking nut (104) is connected with the middle shaft (111) and the spring top seat, and the top end of the middle shaft (111) is provided with a thimble (103); the compression spring (106) and the damping agent (107) are positioned in a cavity between the spring top seat and the inner cylinder;
the monitoring device comprises a sensor (110), a compression nut (109) and a mounting nut (108), the mounting nut (108) is fixed in a stepped hole (118), a through hole (122) is formed in the center of the mounting nut (108), the through hole (122) is a stepped hole, a hole with a larger diameter is positioned at the upper part of the through hole (122), threads are arranged on the side surface of the upper part of the through hole (122), the sensor (110) is fixed above the step of the through hole (122) through the compression nut (109), the top of the thimble (103) is positioned in the through hole (122), and the thimble (103) and the sensor (110) are positioned in the vertical direction;
the vertical distance between the top of the thimble (103) and the sensor (110) is greater than the sum of the compression amount of the vibration isolator (1) in normal operation and the sensing distance of the sensor (110);
the vertical distance between the top of the thimble (103) and the bottom of the sensor (110) is smaller than the maximum distance of the spring top seat compressed downwards.
2. The vibration isolator with the online failure monitoring device according to claim 1, characterized in that: the spring top seat comprises a top plate (102), a bottom plate (113) and a damping chamber (112), the top plate (102) is fixedly connected with the bottom plate (113), an installation bolt hole (120) is formed in the upper end of the top plate (102), the bottom end of the bottom plate (113) is fixedly connected with a boss (115), and a center hole (121) is formed jointly.
3. The vibration isolator with the online failure monitoring device according to claim 2, characterized in that: one end of the intermediate shaft (111) penetrates through the central hole (121) and is fixed in the damping chamber (112) by using a locking nut (104), the other end of the intermediate shaft is fixedly connected with the shaft seat (116), and the intermediate shaft (111) is in clearance fit with the central hole (121).
4. The vibration isolator with the online failure monitoring device according to claim 2, characterized in that: the top plate (102), the bottom plate (113) and the lug boss (115) are integrally cast or connected in a welding mode.
5. The vibration isolator with the online failure monitoring device according to claim 1, characterized in that: the inner cylinder comprises a cylinder wall (101) and a base (114), the cylinder wall (101) is provided with a step (119), and the upper end of the base (114) is fixedly connected with a shaft seat (116).
6. The vibration isolator with the online failure monitoring device according to claim 5, characterized in that: the cylinder wall (101), the base (114) and the shaft seat (116) are integrally cast or connected in a welding mode.
7. The vibration isolator with the online failure monitoring device according to claim 1, characterized in that: the bottom end of the inner cylinder is provided with a positioning hole (117) which is fixed on the floating plate substrate (11) through a positioning pin (8).
8. The vibration isolator with the online failure monitoring device according to claim 1, characterized in that: the outer cylinder (2) is poured in the floating plate and is integrated with the floating plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010602608.7A CN111827020B (en) | 2020-06-29 | 2020-06-29 | Vibration isolator with online failure monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010602608.7A CN111827020B (en) | 2020-06-29 | 2020-06-29 | Vibration isolator with online failure monitoring device |
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| CN111827020A CN111827020A (en) | 2020-10-27 |
| CN111827020B true CN111827020B (en) | 2021-11-09 |
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| CN202010602608.7A Active CN111827020B (en) | 2020-06-29 | 2020-06-29 | Vibration isolator with online failure monitoring device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116497646A (en) * | 2022-07-23 | 2023-07-28 | 浙江天铁实业股份有限公司 | Superimposed vibration isolator |
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| CN101775763A (en) * | 2010-02-05 | 2010-07-14 | 北京市劳动保护科学研究院 | Failure indicator of vibration isolator of damping spring floating track bed |
| CN203096531U (en) * | 2012-11-06 | 2013-07-31 | 北京九州一轨隔振技术有限公司 | Adjustable failure indicating device of vibration isolator |
| CN203629500U (en) * | 2013-09-24 | 2014-06-04 | 隔而固(青岛)振动控制有限公司 | Height variation measuring and recording device, floating ballast bed using height variation measuring and recording device and elastic vibration isolator using height variation measuring and recording device |
| WO2017202301A1 (en) * | 2016-05-27 | 2017-11-30 | 江苏远兴环保科技有限公司 | Screw damper and floating slab track system, and jacking device thereof and jacking method therefor |
| CN109554965A (en) * | 2019-01-08 | 2019-04-02 | 隔而固(青岛)振动控制有限公司 | Vibration isolator failure indication arrangement |
| CN109837807A (en) * | 2019-01-21 | 2019-06-04 | 株洲时代新材料科技股份有限公司 | A kind of track floating plate vibration isolator |
-
2020
- 2020-06-29 CN CN202010602608.7A patent/CN111827020B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775763A (en) * | 2010-02-05 | 2010-07-14 | 北京市劳动保护科学研究院 | Failure indicator of vibration isolator of damping spring floating track bed |
| CN203096531U (en) * | 2012-11-06 | 2013-07-31 | 北京九州一轨隔振技术有限公司 | Adjustable failure indicating device of vibration isolator |
| CN203629500U (en) * | 2013-09-24 | 2014-06-04 | 隔而固(青岛)振动控制有限公司 | Height variation measuring and recording device, floating ballast bed using height variation measuring and recording device and elastic vibration isolator using height variation measuring and recording device |
| WO2017202301A1 (en) * | 2016-05-27 | 2017-11-30 | 江苏远兴环保科技有限公司 | Screw damper and floating slab track system, and jacking device thereof and jacking method therefor |
| CN109554965A (en) * | 2019-01-08 | 2019-04-02 | 隔而固(青岛)振动控制有限公司 | Vibration isolator failure indication arrangement |
| CN109837807A (en) * | 2019-01-21 | 2019-06-04 | 株洲时代新材料科技股份有限公司 | A kind of track floating plate vibration isolator |
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| CN111827020A (en) | 2020-10-27 |
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