CN103381734B - Pretensioning muffling ring for muffling wheels of railway vehicles - Google Patents
Pretensioning muffling ring for muffling wheels of railway vehicles Download PDFInfo
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- CN103381734B CN103381734B CN201210243454.2A CN201210243454A CN103381734B CN 103381734 B CN103381734 B CN 103381734B CN 201210243454 A CN201210243454 A CN 201210243454A CN 103381734 B CN103381734 B CN 103381734B
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- noise reduction
- steel loop
- pretension
- ring
- muffling
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Abstract
The invention provides a pretensioning muffling ring for muffling wheels of railway vehicles. The muffling ring comprises a steel loop with an opening and a pretensioning bolt, wherein a threaded hole is formed in one end of the opening of the steel loop, and a round hole is formed in the other end of the opening of the steel loop; the opening of the steel loop is connected and closed by the pretensioning bolt; one end of the pretensioning bolt is a threaded pillar and the other end is a cylinder; a circle of lug boss is formed between the threaded pillar and the cylinder; the threaded pillar is in threaded connection with the interior of the threaded hole of the steel loop; the cylinder is inserted into the round hole of the steel loop. The muffling ring has improved muffling effect, and higher noise elimination performance; a tensioning force exists because the pretensioning muffling ring is clung to a wheel groove, and the gap between the pretensioning muffling ring and the wheel groove is about 0.1 mm, so that the use safety of the muffling ring is increased and the muffling ring is prevented from flaking off the ring groove.
Description
Technical field
The present invention relates to a kind of noise reduction ring, particularly relate to a kind of pretension noise reduction ring of guideway vehicle noise reduction wheel use.
Background technology
The noise pollution of guideway vehicle, has become a crucial shortcoming of city railway vehicle, also becomes obstacles for its a large amount of development of restriction, and the noise pollution that therefore how to reduce guideway vehicle becomes current important problem.In the noise of guideway vehicle especially the noise between wheel track in the highest flight, the noise therefore how reducing between wheel track becomes the problem that our times is paid close attention to.Reduce noise between wheel track can trailing wheel and rail both direction set about, so noise reduction wheel has just produced.The method of wheel noise reduction has many, have plenty of and in wheel, be provided with the elastic wheel of being made by High molecular materials such as rubber, with damping body, absorb vibration and noise, but this structure exists easy loss, short defect of life-span, High molecular material often has comb. simultaneously, also exist disaster hidden-trouble, environment is had to pollution; The noise-reducing structure of some noise reduction wheels is very complicated, and installation and maintenance are all inconvenient, also increased the manufacturing cost of wheel, and due to its complex structure, occupied space large, causes difficulty to the installation of brake disc.
Steel loop noise reduction wheel is that a kind of noise reduction simple and good muffling effect is taken turns, development in recent years is rapid, countries in the world all adopt mutually in a large number, the noise reduction wheel of guideway vehicle is divided into open-type noise reduction ring (for example noise reduction ring of Canadian Bombadier Inc) and closed type (for example welding noise reduction ring of French Alstom) with noise reduction ring, the safety of noise reduction ring and the erasure effect of closed type are better than open-type, but because steel loop does not have pretension in race, steel loop is to float over can not contact completely with race in race, therefore, the noise reduction ring of closed type has reduced erasure effect and safety, because race is machine up, the precision of circularity is very high is 0.05mm left and right, steel loop be heating palintrope out, the precision of circularity only has 2-3mm left and right, therefore both interlock, can not contact completely, in noncontact place, reduced erasure effect.
Chinese patent CN200620047561 discloses a kind of wheel of the noise reduction for guideway vehicle, comprises wheel rim and spoke, and the inner side of described wheel rim is provided with circular groove, is inlaid with noise reduction ring in circular groove.Noise reduction ring is preferably becket.By the friction between noise reduction ring and circular groove, can absorb the energy of vibration, thereby reach the object that reduces noise.But which type of noise reduction ring is this patent do not point out to adopt, which kind of noise reduction ring is best, and this patent is further developing of above-mentioned patent.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of pretension noise reduction ring of complete guideway vehicle noise reduction wheel use, adopt pretension screw can make steel loop open, make the length of contact between steel loop and race reach maxim, erasure effect also reaches maxim, be used for solving prior art steel loop and can not contact completely with noise reduction wheel, the problem that erasure effect is bad.
For achieving the above object and other relevant objects, the invention provides a kind of pretension noise reduction ring of guideway vehicle noise reduction wheel use, described noise reduction ring comprises steel loop and the pretension bolt with an opening, one end of described steel loop opening is threaded hole, the other end of described steel loop opening is with circular hole, the opening part of described steel loop connects closed by described pretension bolt, one end of described pretension bolt is that the threaded column other end is cylinder, between threaded column and cylinder, being provided with a circle pulls with boss, described threaded column is threaded in the tapped bore of described steel loop, described cylinder is plugged in the circular hole of described steel loop.
Preferably, the minimum pre-fastening moment of described pretension bolt is 12Nm.
Preferably, described pretension bolt to pull with boss be gear-like structure.
Preferably, described steel loop is the spring steel through Quenching Treatment.
Preferably, described pretension bolt is the hardened steel that hardness reaches HRC52.
As mentioned above, the pretension noise reduction ring of guideway vehicle noise reduction wheel use of the present invention, has following beneficial effect:
● by pretension bolt, make the length of contact between steel loop and race reach maxim, erasure effect also reaches maxim, and therefore, the noise reduction ring with pretension function of the present invention, has higher erasure effect and reliability than general closed type noise reduction ring;
● pretension bolt of the present invention can be pulled in race, makes noise reduction ring fit tightly race inwall, facilitates the installation of noise reduction ring, has increased safety in utilization, has improved erasure effect;
● the spring steel after adopt quenching is made steel loop, can reach the object that certain circularity and planeness can not change, and has improved the stability of noise reduction ring, and not yielding, has increased service life.
Accompanying drawing explanation
Fig. 1 is shown as the pretension noise reduction ring schematic diagram of guideway vehicle noise reduction wheel use of the present invention.
Fig. 2 is shown as the structural representation of the pretension noise reduction ring junction of guideway vehicle noise reduction wheel use of the present invention.
Fig. 3 is shown as the front view of pretension bolt of the present invention.
Fig. 4 is shown as the lateral plan of pretension bolt of the present invention.
Fig. 5 is shown as the track maximum noise schematic diagram under different pre-fastening moments.
Element numbers explanation
1 steel loop
11 tapped bore
12 circular holes
2 pretension bolts
21 threaded column
22 pull and use boss
23 cylinders
The specific embodiment
By particular specific embodiment explanation embodiments of the present invention, person skilled in the art scholar can understand other advantages of the present invention and effect easily by the disclosed content of this specification sheets below.
Refer to Fig. 1 to Fig. 5.Notice, appended graphic the illustrated structure of this specification sheets, ratio, size etc., equal contents in order to coordinate specification sheets to disclose only, for person skilled in the art scholar, understand and read, not in order to limit the enforceable qualifications of the present invention, therefore the technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, not affecting under the effect that the present invention can produce and the object that can reach, all should still drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, in this specification sheets, quote as " on ", the term of D score, " left side ", " right side ", " centre " and " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under without essence change technology contents, when being also considered as the enforceable category of the present invention.
As shown in Figures 1 and 2, the invention provides a kind of pretension noise reduction ring of guideway vehicle noise reduction wheel use, this noise reduction ring comprises steel loop 1 and the pretension bolt 2 with an opening, one end of steel loop 1 opening is threaded hole 11, the other end of steel loop opening is with circular hole 12, the opening part of steel loop connects closed by pretension bolt 2, one end of pretension bolt 2 is that threaded column 21 other ends are that cylinder 23(is shown in Fig. 3), at threaded column 21 and 23, cylinder, being provided with a circle pulls with boss 22, threaded column 21 is threaded in the tapped bore 11 of steel loop, cylinder 23 is plugged in the circular hole 12 of described steel loop.Noise reduction ring of the present invention makes open-type steel loop become closed type noise reduction ring by pretension bolt, and by pretension bolt, can regulate the opening width of noise reduction ring, makes the length of contact between steel loop and race reach maxim, and erasure effect also reaches maxim.When preliminary installation, dwindling opening part is placed in noise reduction ring in the race of rim for automobile wheel, noise reduction ring regulates pretension bolt after entering race, the opening degree that increases steel loop, struts in race noise reduction ring completely, fits tightly with race inwall, improved the noise reduction of noise reduction ring, reach the highest noise and eliminate, increased the safety in utilization of noise reduction ring simultaneously, avoid noise reduction ring to come off in race.
As shown in Figure 4, pulling of above-mentioned pretension bolt uses boss 22 for gear-like structure, adopt gear-like structure to be convenient to block this gear by adjustment means and tighten pretension bolt, the degree of depth of being convenient to regulate the threaded column 21 of pretension bolt to insert in steel loop tapped bore 11, by regulating the depth of penetration of threaded column to regulate the opening width of noise reduction ring.Because the size of race is limited, again because noise reduction ring is placed in race, noise reduction ring is embedded in race, if therefore above-mentioned boss is general outer-hexagonal structure or other nut structure, will be difficult to realize the adjusting of pretension bolt, and gear-like structure is easily stuck and stressed, be convenient to regulate.Above-mentioned boss shape is not limited to this, also can be for other are easily stuck, and the structure of pretension bolt being tightened by adjustment means.General, threaded column 21 length of pretension bolt are 17cm-22cm, according to the size of the size of race and steel loop, make, and only need assurance to tighten tighting a bolt and regulate 3cm-17cm distance.
As shown in Figure 5, in the time of without noise reduction ring, track noise is in high sound pressure level.Install after pretension noise reduction ring of the present invention, by test of many times, when the pre-fastening moment of pretension bolt is 0Nm, the maximum sound pressure level of track noise is between 102dB-108dB, and when pre-fastening moment is 10Nm, the maximum sound pressure level of track noise is 103db-106db; When pre-fastening moment is 12Nm, the maximum sound pressure level of track noise is low, and to 98db-102db, noise reduces a lot, and therefore, the pre-fastening moment of pretension bolt is larger, and the erasure effect of noise reduction ring is better, and noise is less.Therefore,, for making noise reach minimum, the pre-fastening moment minimum of pretension bolt 2 is 12Nm, at pre-fastening moment, is the sound pressure level that 12Nm time ratio does not have the little 5.4db of predetermincd tension (0Nm).The degree of depth that the adjusting of this pre-fastening moment can be stretched into steel loop tapped bore by pretension bolt threaded column regulates, and the boss that the adjusting of pretension bolt turns above-mentioned pretension bolt by adjustment means is that gear-like structure realizes.
For guaranteeing the not redeformation that is in operation of noise reduction ring, make noise reduction ring reach better erasure effect, above-mentioned steel loop 1 is the spring steel through Quenching Treatment, guarantees that circularity and the planeness of noise reduction ring is constant through Quenching Treatment.Pretension bolt adopts hardness to reach the hardened steel of HRC52, guarantees to reach better pre-fastening moment stability.
In sum, the pretension noise reduction ring of guideway vehicle noise reduction wheel use of the present invention, it makes open-type steel loop become closed type noise reduction ring by pretension bolt, and by pretension bolt, can regulate the opening width of noise reduction ring, make the length of contact between steel loop and race reach maxim, erasure effect also reaches maxim.Because race is machine up, the precision of race circularity is very high is 0.05mm left and right, steel loop be heating palintrope out, the precision of steel loop circularity only has 2-3mm left and right, therefore both interlock, can not contact completely, the present invention adopts pretension bolt can make steel loop open both are fitted tightly, improved the erasure effect of noise reduction ring, reach the highest noise and eliminate, simultaneously because this pretension noise reduction ring is close to race and is had tension force, with the gap of race be 0.1mm left and right, increase the safety in utilization of pretension noise reduction ring, avoided pretension noise reduction ring to come off from annular groove.So the present invention has effectively overcome various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all can, under spirit of the present invention and category, modify or change above-described embodiment.Therefore, such as in affiliated technical field, have and conventionally know that the knowledgeable, not departing from all equivalence modifications that complete under disclosed spirit and technological thought or changing, must be contained by claim of the present invention.
Claims (5)
1. the pretension noise reduction ring of guideway vehicle noise reduction wheel use, it is characterized in that, described noise reduction ring comprises steel loop and the pretension bolt with an opening, in one end round section of described steel loop opening, be threaded hole, in the other end round section of described steel loop opening with circular hole, the opening part of described steel loop connects closed by described pretension bolt, one end of described pretension bolt is that the threaded column other end is cylinder, between threaded column and cylinder, being provided with a circle pulls with boss, described threaded column is threaded in the tapped bore of described steel loop, described cylinder is plugged in the circular hole of described steel loop.
2. the pretension noise reduction ring of guideway vehicle noise reduction wheel use according to claim 1, is characterized in that: the minimum pre-fastening moment of described pretension bolt is 12Nm.
3. the pretension noise reduction ring of guideway vehicle noise reduction according to claim 1 wheel use, is characterized in that: described pretension bolt to pull with boss be gear-like structure.
4. the pretension noise reduction ring of guideway vehicle noise reduction wheel use according to claim 1, is characterized in that: described steel loop is the spring steel through Quenching Treatment.
5. the pretension noise reduction ring of guideway vehicle noise reduction wheel use according to claim 1, is characterized in that: described pretension bolt is the hardened steel that hardness reaches HRC52.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210243454.2A CN103381734B (en) | 2012-07-13 | 2012-07-13 | Pretensioning muffling ring for muffling wheels of railway vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210243454.2A CN103381734B (en) | 2012-07-13 | 2012-07-13 | Pretensioning muffling ring for muffling wheels of railway vehicles |
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| Publication Number | Publication Date |
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| CN103381734A CN103381734A (en) | 2013-11-06 |
| CN103381734B true CN103381734B (en) | 2014-04-02 |
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| CN201210243454.2A Active CN103381734B (en) | 2012-07-13 | 2012-07-13 | Pretensioning muffling ring for muffling wheels of railway vehicles |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104723790B (en) * | 2015-01-23 | 2017-02-22 | 马钢(集团)控股有限公司 | Connecting device and method for wheel damping ring |
| US20190143764A1 (en) * | 2017-11-10 | 2019-05-16 | Triangle Tyre Co. Ltd. | Pneumatic tire with noise damper |
| CN109677205A (en) * | 2019-02-27 | 2019-04-26 | 哈尔滨通达工业环保自动化有限公司 | A kind of elastomeric connector and its application method for damping ring |
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|---|---|---|---|---|
| CN2277641Y (en) * | 1997-03-04 | 1998-04-08 | 詹德厚 | Mosquito catching device |
| CN2611610Y (en) * | 2003-03-14 | 2004-04-14 | 胜利石油管理局黄河钻井总公司钻井五公司 | Fast detaching exhaust pipe |
| CN200967384Y (en) * | 2006-11-07 | 2007-10-31 | 沈培德 | Noise reduction wheel |
| CN201980366U (en) * | 2010-09-09 | 2011-09-21 | 徐新华 | Noiseless brake device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002139120A (en) * | 2001-08-29 | 2002-05-17 | Sanai:Kk | Feed screw mechanism and pre-load adjustment method for the same |
| UA34835U (en) * | 2008-03-14 | 2008-08-26 | Закрытое Акционерное Общество «Вентиляционные Системы» | Anemostat |
| JP2012122544A (en) * | 2010-12-08 | 2012-06-28 | Ntn Corp | Clutch unit |
-
2012
- 2012-07-13 CN CN201210243454.2A patent/CN103381734B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2277641Y (en) * | 1997-03-04 | 1998-04-08 | 詹德厚 | Mosquito catching device |
| CN2611610Y (en) * | 2003-03-14 | 2004-04-14 | 胜利石油管理局黄河钻井总公司钻井五公司 | Fast detaching exhaust pipe |
| CN200967384Y (en) * | 2006-11-07 | 2007-10-31 | 沈培德 | Noise reduction wheel |
| CN201980366U (en) * | 2010-09-09 | 2011-09-21 | 徐新华 | Noiseless brake device |
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| CN103381734A (en) | 2013-11-06 |
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Owner name: SHANGHAI GOD BLESS RAILWAY NEW TECHNOLOGY INSTITUT Free format text: FORMER OWNER: SHANGHAI JUANCHENG RAILWAY NEW TECHNOLOGY CO., LTD. Effective date: 20140225 |
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Effective date of registration: 20140225 Address after: 200331 Putuo District South Road, Shanghai, No. 450 Applicant after: SHANGHAI GOD BLESS NEW RAIL TECH INSTITUTE Co.,Ltd. Address before: 200331 room 147, building 500, 311 South Road, Putuo District, Shanghai Applicant before: SHANGHAI JUANCHENG RAILWAY NEW TECHNOLOGY Co.,Ltd. |
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Denomination of invention: Pre tensioned silencing ring for silencing wheels of railway vehicles Effective date of registration: 20230919 Granted publication date: 20140402 Pledgee: Shanghai Rural Commercial Bank Co.,Ltd. Yangpu Sub branch Pledgor: SHANGHAI GOD BLESS NEW RAIL TECH INSTITUTE Co.,Ltd. Registration number: Y2023310000563 |