CN2173323Y

CN2173323Y - Ring shape shock damping series device for steel cable

Info

Publication number: CN2173323Y
Application number: CN 93214124
Authority: CN
Inventors: 胡振锡
Original assignee: Individual
Current assignee: Fishery Machinery and Instrument Research Institute of CAFS
Priority date: 1993-05-22
Filing date: 1993-05-22
Publication date: 1994-08-03
Anticipated expiration: 2003-05-22

Abstract

The utility model relates to a ring-shaped shock damping line device for steel cables, which comprises a first and a second fixed plates formed from the structure in shape of circular plates or circular coaxial stairs, and one group or more than one groups of steel cables with respectively or entirely identical lengths and diameters, wherein, the steel cables are fixedly installed between the two fixed plates in single or multiplex symmetric distribution and are wound closely in multiple strands, and the preferable diameter of the steel cable is between 2.4 millimeters and 16.0 millimeters. The utility model has the advantage of simple structure and installation; under vibrating and shocking conditions, the utility model can reduce the responses to the vibration and the shock and can also increase the bearing capacity with unit volume weight of the device, enhancing the stability under load as well.

Description

Ring shape shock damping series device for steel cable

The utility model relates to a kind of vibration reduction and cushioning device, particularly a kind of annular steel wire rope vibration reduction and cushioning series apparatus.

The various precision type instrument that vibratory impulse caused, household electric appliance, the loss in transportation process of valuable historical relic, glassware or the like is quite surprising; Since vibratory impulse make environmental pollution, the problem of building damage and labor protection aspect is also quite general, situation is very serious.With the Nanjing Yangtze River Bridge railway bridge is example, 604 rail lighting burners that are provided with on its north and south access bridge, between the recent two decades before adopting vibration absorption lamp, because locomotive or passenger and freight train are every month 20% through the caused lamp holder average loss rate of out-of-date vibration, each lamp holder is in 15 yuan, and only this loss accumulative total is just above 400,000 yuan.

Be example with the washing machine that transported Shijiazhuang to by Shanghai in 1987 again, because the vibratory impulse in loading and unloading and the transportation process, making the whole parcel serviceability rate that transports to behind the destination only is 52%; China's case dress sheet glass in 1984 is after car, Ship Transportation, and the loss that is caused is up to 4.5 hundred million yuan.

Through researching and analysing and can know, many very high noise pollution problems of difficulty of governance are actually by low-frequency vibration and excite, and cause by the very strong middle long sound wave of penetrability.Rely on common sound absorption, sound insulating material can not solve this class problem at all.In sum, a kind of device of vibration reduction and cushioning efficiently of exploitation is imperative.

From early eighties in this century, American-European countries such as the U.S., Germany, France, Norway have carried out big quantity research to wire rope damper, and China has also progressively carried out the research of this respect mid-term from the eighties, and has several prods to come into the market.But the wire rope damper of commonplace use, its wire rope as damping element all is vertically to spiral to form, and is separately fixed on two rectangular flats.In use exist Vertical direction stability better, and the problem of substantially horizontal less stable.Therefore, limited applying of it to a certain extent.

The purpose of this utility model is to provide a kind of annular steel wire rope vibration reduction and cushioning series apparatus, and it is simple in structure, installs also very convenient; Under vibration and shock environment condition, the vibratory impulse response that is subjected to vibratory impulse object (or personnel) can be reduced, and the bearing capacity of the unit unit weight of this class device can be increased, and the stability when improving its stand under load.

The purpose of this utility model realizes in the following manner, a kind of annular steel wire rope vibration reduction and cushioning series apparatus, comprise it all being first fixed plate and second fixed plate of circular plate or circular coaxial ladder-type structure, and a group or more, length wire rope identical with diameter or that have nothing in common with each other; Wire rope is fixedly mounted between two fixed plates with being a heavy or multiple symmetrical distribution.Wherein wire rope is that multiply is closely twined, and its diameter is preferably between the 2.4-16.0 millimeter.

The utility model has the advantages that this vibration reduction and cushioning apparatus structure is simple, install also easily and to have following characteristics:

-dominant frequency is low to be reached about 5HZ, and its corresponding vibration transmissibility is less than or equal to 1.0;

-dominant frequency band is narrow, makes vibration system can cross point of resonance very soon, thereby can protect the object that shaken (or personnel) effectively;

-every towards efficient up to more than 95%;

-strong to external environmemt adaptability such as temperature, soda acids;

-long service life.

In addition, can also increase the bearing capacity of the unit unit weight of this class device, and the stability when improving its stand under load.

Below in conjunction with accompanying drawing an embodiment of the present utility model is done detailed explanation.

Fig. 1 is the utility model one embodiment's a plan view;

Fig. 2 is the sectional view along the A-A line among Fig. 1.

Referring to Fig. 1 and Fig. 2, first fixed plate 1 and second fixed plate 2 be two groups of fixed plates that structure is identical normally, and in the drawings, they all are three layers of coaxial ladder-type structure, and these two groups of fixed plates 1 and 2 are the relative mode setting as shown in Figure 2.Each organize fixed plate include circular clamping plate that four diameters dwindle successively and the circular clamping plate 3,4,5 and 6 and 3 of stepped shaft ', 4 ', 5 ' and 6 '.Each is organized and is provided with the radial groove (not label) that holds the wire rope termination in the fixed plate between the adjacent two clamping plates, and these grooves distribute on each circumference symmetrically and evenly.Between clamping plate 3 and 4 and clamping plate 3 ' and 4 ' between groove in fixedly mounting the two ends of the first heavy wire rope 7 respectively, the first heavy wire rope 7 has at least more than 3, and their length is all identical with diameter.Clamping plate 3 and 4 and clamping plate 3 ' and 4 ' respectively interfixed and the folder termination of deciding wire rope 7 thus by some thread screws 10.Wire rope 7 after fixing all in the form of a ring.The two ends of the second heavy wire rope 8 be installed in respectively clamping plate 4 and 5 and 4 ' and 5 ' between along (not shown) in the equally distributed groove of its side face radial symmetric, and by thread screw 11 clamping that is fixed.The second heavy wire rope 8 has at least more than three, and their length all is identical with diameter, and the wire rope 8 after fixing all in the form of a ring.The two ends of triple wire rope 9 be installed in respectively clamping plate 5 and 6 and 5 ' and 6 ' between, along (not shown) in the equally distributed groove of its side face radial symmetric, and by thread screw 12 clamping that is fixed.Triple wire rope 9 also are to have at least more than three, and their length also all is identical with diameter, and the wire rope 9 after fixing all in the form of a ring.Each heavy wire rope 7,8 and 9 length and diameter can be the same or different.Wire rope 7,8 and 9 all is that multiply is closely twined, and their diameter is preferably between the 2.4-16.0 millimeter.

The center of first fixed plate 1 and second fixed plate 2, that is clamping

plate

5 and 6 and 5 ' and 6 ' the center be provided with screw 13 and 13 ', by them, this device can be respectively fixedlyed connected with bearing object (as ground etc.) and supported material (as object of wanting vibration reduction and cushioning etc.).

Except the connecting means of described wire rope of top embodiment and fixed plate, many other connecting means can also be arranged.For example utilize

Clevis gripping member, wire rope termination place in the concave arc of retaining member, make retaining member clamp wire rope and be fixed on the stepped shaft inner surface of each fixed plate by screw.If fixing wire rope in this way, fixed plate just needn't be formed by the piece clamping plate, and can be the coaxial ladder-type structure of an integral body.

Except the vibration reduction and cushioning device of the described triple steel cord structures of top embodiment, as required, also can be the vibration reduction and cushioning device of the steel cord structure of a weight, two-fold or other tuple.If have only a heavy wire rope, each fixed plate can be a plectane.If but adopted the described method of embodiment to connect wire rope and fixed plate, then this plectane would be exactly can close up clamping plate fixing and that be provided with radial groove between them relatively by two to form.

Identical label is represented identical structure and parts in the accompanying drawing.

Claims

1, a kind of annular steel wire rope vibration reduction and cushioning series apparatus, comprise first fixed plate and second fixed plate, and be fixedly mounted on two wire rope between the fixed plate, it is characterized in that, first fixed plate and second fixed plate all are circular plate or circular coaxial ladder-type structure, and they are positioned opposite; A group or more, the two ends of length wire rope identical with diameter or that have nothing in common with each other are fixedly mounted on respectively on first fixed plate and second fixed plate, and wire rope is a heavy or multiple ring-type and is symmetrically distributed.

2, annular steel wire rope vibration reduction and cushioning series apparatus as claimed in claim 1 is characterized in that, the diameter of wire rope and is that multiply closely is entwined between the 2.4-16.0 millimeter.