Dust cover and the brake unit of rail traffic vehicles
Technical field
The present invention relates to rail traffic vehicle braking field, the braking list of a kind of dust cover and rail traffic vehicles
Unit.
Background technology
Dust cover has in rail traffic vehicles brake system unit and is widely used, and is mainly used in brake unit system
Dynamic between cylinder and attachment means, follow dilatation neatly when screw rod stretches out or returns, simultaneously, it is to avoid moisture, dust, oil
The impurity such as dirt enter and screw rod may be caused to rotate abrasion and increase or clamping stagnation, down to premature abrasion.
Brake system unit is the important composition parts of rail traffic vehicles, it to ensure vehicle from properly functioning to
Stop playing very important effect.During practice, the quality of its performance directly affects the braking ability of vehicle,
This just requires that it must possess good stability and reliability.Keep the reliable serviceability of dust cover for reducing product
Overall failure rate and raising rail traffic vehicles safety in operation have important realistic meaning, can also reduce utilization dimension simultaneously
Protect cost and the spending of unnecessary human and material resources.
Along with the fast development of track traffic industry, to the application of dust cover also with rail in brake system unit
The change of road vehicular traffic operation environment and have higher requirement, especially in the face of airborne dust, sandstorm, sleet and snow ice, height
Low temperature and the adverse circumstances such as damp and hot, dust cover is found to there are be full of cracks, crackle etc. during using may impact braking list
During unit's braking ability, need to meet the quick-replaceable maintenance requirement that brake system unit carries out fault part.
Summary of the invention
In order to overcome existing dust cover when breaking down can not quick-replaceable and sealing difference deficiency, the present invention carries
Supply a kind of dust cover, to reach quick-replaceable and to ensure the purpose of sealing.
Present invention also offers the brake unit of a kind of rail traffic vehicles, to reduce the purpose of braking risk.
The technical solution adopted for the present invention to solve the technical problems is: a kind of dust cover, and dust cover includes: dust cover is originally
Body, dust boot body is provided with longitudinal cut along axis of rotation direction;Waterproof slide fastener, is arranged on inner side the position of dust boot body
At longitudinal cut, the bearing of trend of waterproof slide fastener is identical with the bearing of trend of longitudinal cut.
Further, when dust boot body is in closure state, the inner side of at least one end of waterproof slide fastener is provided with use
In the black box sealed.
Further, the width of black box is more than or equal to the width of waterproof slide fastener.
Further, the length of black box is less than or equal to the length of waterproof slide fastener.
Further, when dust boot body is in closure state, at longitudinal cut, it is provided with adhesive phase.
Further, dust boot body uses ozone weather-proof, resistance to, low temperature resistant elastomeric material to make.
Further, dust boot body includes bellows piece and is arranged on the first connection end and the at bellows piece two ends
Two connect end, and first connects the diameter diameter less than or equal to the second connection end of end.
Present invention also offers the brake unit of a kind of rail traffic vehicles, above-mentioned be set on screw rod including screw rod
Dust cover.
Further, the brake unit of rail traffic vehicles also includes checking cylinder and attachment means, and one end of screw rod wears
On checking cylinder, attachment means is positioned at the other end of screw rod, and one end of dust cover is connected with checking cylinder, the other end of dust cover
It is connected with attachment means.
Further, the brake unit of rail traffic vehicles also includes fixation kit, and one end of dust cover is by fixing group
Part is connected with checking cylinder, and the other end of dust cover is connected with attachment means by fixation kit.
The invention has the beneficial effects as follows, the inner side of dust boot body is provided with waterproof slide fastener, waterproof slide fastener can be passed through
Opening and closing realize the opening and closing of dust boot body, it is possible to quick-replaceable dust cover, waterproof slide fastener is arranged on dust boot body simultaneously
Inner side, it is possible to be prevented effectively from the impurity such as moisture, dust, greasy dirt and enter into the inside of dust boot body, improve the anti-of dust cover
Protect effect.
Need not when changing the brake unit of rail traffic vehicles is got off and dismantled the corresponding checking cylinder of decomposition and connection
Device, after only need to dismantling metal clip or nylon cable tie securing member and remove fault dust cover, can be by the embodiment of the present invention
Dust cover be quickly installed to precalculated position, can be greatly lowered because of brake unit get off, transport, dismantle decomposition change dust-proof
Cover, then transport, get on the bus whole during produced human and material resources, financial resources consumption, reduce unnecessary waste and save a large amount of
Turnaround time.Dust cover replacing construction of the present invention only needs 20~25 minutes.
Accompanying drawing explanation
The Figure of description of the part constituting the application is used for providing a further understanding of the present invention, and the present invention shows
Meaning property embodiment and explanation thereof are used for explaining the present invention, are not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is dust cover structural representation in the on-state in the embodiment of the present invention;
Fig. 2 is dust cover structural representation in closed state in the embodiment of the present invention;
Fig. 3 is the plan structure schematic diagram of dust cover in the embodiment of the present invention;
Fig. 4 is the structural representation of the brake unit of embodiment of the present invention middle orbit vehicular traffic.
Reference in figure: 10, dust boot body;11, longitudinal cut;12, bellows piece;13, first connects end;14、
Second connects end;20, waterproof slide fastener;30, black box;40, adhesive phase;50, screw rod;60, checking cylinder;70, attachment means;
80, fixation kit.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases
Combination mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Embodiment one
As shown in Figure 1 to Figure 3, the embodiment of the present invention provides a kind of dust cover, and this dust cover includes dust boot body 10 He
Waterproof slide fastener 20.Dust boot body 10 has bellows piece 12 and the first connection end 13 being arranged on bellows piece 12 two ends and the
Two connect ends 14, wherein, along first connect end 13 towards second connect end 14 direction, the diameter of above-mentioned dust boot body 10 by
It is cumulative that (first connects end 13 can also be identical with the second diameter connecting end 14, and above-mentioned dust boot body 10 can be according to not greatly
Selecting with installation environment, here is omitted), namely this dust boot body 10 is substantially in cone cylinder body shape.Dust boot body
10 are provided with longitudinal cut 11 along axis of rotation direction () in Fig. 1 longitudinally, and longitudinal cut 11 is connected end 13 through ripple by first
Pipeline section 12 also extends at the second connection end 14.This longitudinal cut runs through whole dust boot body 10.In dust boot body 10
Inner side be provided with waterproof slide fastener 20, this waterproof slide fastener 20 is positioned at longitudinal cut 11, and the bearing of trend of waterproof slide fastener 20 with
The bearing of trend of longitudinal cut 11 is identical.
Be provided with waterproof slide fastener 20 in the inner side of dust boot body 10, in the present invention, waterproof slide fastener 20 is prior art
Waterproof slide fastener known in, its concrete structure does not repeats them here.The present invention can realize anti-by the opening and closing of waterproof slide fastener 20
The opening and closing of boot body 10, it is possible to quick-replaceable dust cover, is arranged on the inner side of dust boot body 10 simultaneously by waterproof slide fastener 20,
Namely waterproof slide fastener 20 is arranged on the inner side at the longitudinal cut 11 of dust boot body 10, waterproof slide fastener 20 can be prevented effectively from water
Point, the impurity such as dust, greasy dirt enter into the inside of dust boot body 10, improve the protection effect of dust cover.It addition, this has ripple
The dust boot body 10 of stricture of vagina pipeline section 12 also has longitudinal extension flexibly () ability in Fig. 1 longitudinally.
Dust cover in the embodiment of the present invention has open mode and closure state, when open mode, and waterproof slide fastener 20
Opening, longitudinal cut 11 is opened, and dust cover can be set on set parts by longitudinal cut 11.When closure state, anti-
Water slide fastener 20 closes, and longitudinal cut 11 closes under the effect of waterproof slide fastener 20.And when closure state, above-mentioned waterproof slide fastener
20 inner sides being positioned at dust boot body 10, binding agent smeared by the tangent plane relatively of two at the longitudinal cut 11 of dust boot body 10
Layer 40, this adhesive phase 40 is used for bonding this longitudinal cut 11, promotes protection effect of dust cover the most further.
Specifically, in the embodiment of the present invention, when smearing adhesive phase 40, should first to the dust cover at longitudinal cut 11 originally
The two of body 10 tangent plane relatively carries out surface process.Because to there is the impurity such as contact greasy dirt in dust cover possible, simultaneously in installation process
The general surface of macromolecular material that dust cover uses can be relatively low, and after using surface conditioning agent to process, (one is to use happy Thailand
755 abluents are carried out, and repaste and smear happy safe 770 priming agent, after smear happy safe 495 bondings), for most macromolecular material
Cleaning surface that is good and that be conducive to bonding can be obtained and bond.It is noted that the dust cover of different materials
Should use according to material category different processing schemes, surface processing intent herein be only by longitudinal cut 11 at two
Tangent plane relatively bonds, and can not be defined concrete processing method as a kind of strong supplemental protective layer.
Preferably, as it is shown on figure 3, when dust boot body 10 is in closure state, at least one end of waterproof slide fastener 20
Inner side is provided with the black box 30 for sealing.The end of waterproof slide fastener 20 can be sealed by this black box 30, should
Black box 30 uses closed cell foamed material to make, such as: ethylene propylene diene rubber (EPDM), vinyl acetate rubber (EVA), sky
So rubber (NR), polyurethane rubber (PU), neoprene (CR) or other similar materials, preferential selection is weather-proof, resistance to smelly among these
Oxygen and low temperature material, such as EPDM, CR, EVA etc..Owing to waterproof slide fastener 20 is fixed to the inner side of dust boot body 10, it is considered to
Possibly cannot fit tightly installation cooperation face to waterproof slide fastener 20 because of self structure reason, will cause having gap, and black box
30 have the good space suitability, can promote dust cover waterproof and dustproof performance.
In one embodiment, the width of black box 30 is more than or equal to the width of waterproof slide fastener 20.Further, close
The length of sealing assembly 30 is less than or equal to the length of waterproof slide fastener 20.The size of black box 30 uses said structure, it is possible to
Effectively the inner side of waterproof slide fastener 20 is sealed, improve the performance of waterproof and dustproof.
It should be noted that the dust boot body 10 in the embodiment of the present invention uses ozone weather-proof, resistance to, low temperature resistant, resistance to tired
The elastomeric material of labor and grease resistance is made.Such as: Polyurethane Thermoplastic Elastomer (TPU), thermoplastic polyester elastomer (TPEE),
Silicone rubber (MVQ), phenyl methyl vinylsiloxane rubber (PMVQ), neoprene (CR) or other similar materials, above material is equal
Ozone weather-proof, resistance to, low temperature resistant, endurance and the requirement of grease resistance can be met, when specifically chosen material, according to applied
Ambient temperature, selects according to material resistance to low temperature.
Embodiment two
As shown in Figure 4, present invention also offers the brake unit of a kind of rail traffic vehicles, including screw rod 50 be set in
Dust cover on screw rod 50.The structure of the dust cover in the present embodiment, operation principle are identical with embodiment one with beneficial effect,
Do not repeat them here.
Preferably, the brake unit of rail traffic vehicles also includes checking cylinder 60 and attachment means 70, one end of screw rod 50
Being located on checking cylinder 60, attachment means 70 is positioned at the other end of screw rod 50, and the first connection end 13 of dust boot body 10 leads to
Crossing fixation kit 80 to be connected with attachment means 70, second connects end 14 is connected with checking cylinder 60 by fixation kit 80.The present invention
Attachment means 70 in embodiment can be bracket or connecting rod.
Wherein fixation kit 80 is metal clip or nylon cable tie, chooses according to different installation environments and is applicable to track
The fixation kit of the brake unit of vehicular traffic, above-mentioned metal clip or nylon cable tie be not to consolidating in the embodiment of the present invention
Determine assembly 80 to be defined.
When dust cover is carried out dismounting and change installation exercise, first with extracting tool by lock ring on dust cover two ends
Metal clip or nylon cable tie are pulled down, and recycle suitable clipping tool and pull down, place where troops were originally stationed dust hood destruction by new dust cover
Waterproof slide fastener 20 is opened, and docks two ends, waterproof slide fastener 20 is closed end after dust cover wherein side is walked around screw rod 50
Closing, this end of a hand-held waterproof slide fastener 20, the slider of zipper fastener of the hand-held waterproof slide fastener of the other end 20 moves slide fastener Guan Bi, behaviour
Make to terminate the surface preparation of laggard row longitudinal cut 11, after its dry tack free, smear adhesive phase 40, treat its bonding Guan Bi
After, cut out and exceed the waterproof slide fastener 20 of dust boot body 10 both ends length (in installation process, the length of waterproof slide fastener 20 is big
Length in dust boot body 10, in order to the Guan Bi of waterproof slide fastener 20), in two Guan Bi ends of dust cover waterproof slide fastener 20
After a piece of black box 30 (rubber blanket that closed cell foamed material is made) of each placement seals, the both ends of dust cover are installed
To the mating interface of checking cylinder 60 and attachment means 70, utilize metal clip or nylon cable tie that it is fastened.So
Operation can be greatly lowered because dust cover is changed in decomposition of being got off by brake unit, transport, dismantle, then during transporting, getting on the bus
Produced human and material resources, financial resources consumption, reduce unnecessary waste and save a large amount of turnaround time.In the embodiment of the present invention
Dust cover replacing construction only need 20~25 minutes.
From the description of two above embodiment, it can be seen that the above embodiments of the present invention achieve following technology
Effect: the inner side of dust boot body 10 is provided with waterproof slide fastener 20, can realize dust cover by the opening and closing of waterproof slide fastener 20
The opening and closing of body 10, it is possible to quick-replaceable dust cover, is arranged on the inner side of dust boot body 10 simultaneously by waterproof slide fastener 20, it is possible to
It is prevented effectively from the impurity such as moisture, dust, greasy dirt and enters into the inside of dust boot body 10, improve the protection effect of dust cover.
Need not when changing the brake unit of rail traffic vehicles is got off and dismantled the corresponding checking cylinder of decomposition and connection
Device, after only need to dismantling metal clip or nylon cable tie securing member and remove fault dust cover, can be by the embodiment of the present invention
Dust cover be quickly installed to precalculated position, can be greatly lowered because of brake unit get off, transport, dismantle decomposition change dust-proof
Cover, then transport, get on the bus whole during produced human and material resources, financial resources consumption, reduce unnecessary waste and save a large amount of
Turnaround time.Dust cover replacing construction of the present invention only needs 20~25 minutes.
The above, the only specific embodiment of the present invention, it is impossible to limit the scope that invention is implemented with it, so its equivalent
The displacement of assembly, or the equivalent variations made according to scope of patent protection of the present invention and modification, all should still fall within what this patent was contained
Category.It addition, between technical characteristic and technical characteristic in the present invention, between technical characteristic and technical scheme, technical scheme with
All can use with independent assortment between technical scheme.