CN205668557U - A kind of sealing structure for track traffic sanding device - Google Patents
A kind of sealing structure for track traffic sanding device Download PDFInfo
- Publication number
- CN205668557U CN205668557U CN201620548326.2U CN201620548326U CN205668557U CN 205668557 U CN205668557 U CN 205668557U CN 201620548326 U CN201620548326 U CN 201620548326U CN 205668557 U CN205668557 U CN 205668557U
- Authority
- CN
- China
- Prior art keywords
- air bag
- mounting seat
- cylinder
- sand
- sealing structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
This utility model provides a kind of sealing structure for track traffic sanding device, the cylinder that including cylinder mounting seat, is vertically arranged in described cylinder mounting seat, being arranged at cylinder piston rod bottom and can be realized the filler door of interface channel opening and closing between sand tank and transmission cylinder by axially-movable, be located on the air bag mounting seat at the sand inlet of transmission cylinder top and the air bag along the described embedded setting of air bag mounting seat inwall, the top of air bag mounting seat extends inwardly in a radial direction a segment distance and forms annular jag；The continuation of sand material can be blocked flow by fitting tightly of filler door and this jag and realize axial seal, its extrados is made to fit tightly with air bag mounting seat inwall by the inflation of air bag again, its intrados radially fits tightly with filler door edge, it is achieved to the radial seal of interface channel between sand tank and transmission cylinder.This utility model simple in construction, good sealing effect, by secondary seal mode, it is to avoid the abrasion to air bag of the sand material.
Description
Technical field
This utility model relates to field of railway transportation equipment, in particular it relates to a kind of for track traffic sanding device
Seal structure.
Background technology
Rail vehicle is expert in braking procedure, sometimes needs the frictional force actively increasing between locomotive wheel and track, to obtain
Preferably braking effect, conventional method is to arrange multiple sand sprayer by locomotive wheel.Due to by the load-carrying of locomotive and bottom thereof
Space is limited, and the storage sand amount of sand sprayer can not be too big, therefore when overhauling locomotive and safeguarding, it is often necessary to sand sprayer
Carry out adding sand.The most domestic adding sand technical elements substantially manually to add sand at vehicle, its required time length, efficiency are low, people
Work cost is high, and filling process is fine not, particularly when the sandbox that some positions are higher is added sand, usually occurs
The situation that a large amount of sand material leak outside, causes waste greatly.Along with rail vehicle quantity and the quick increase of distance travelled, people
Work adds the mode of sand the most increasingly can not meet needs, and especially when running into sleety weather, locomotive sand using amount is big, manually adds
The problem that sand exists more highlights.
Brake sand is a kind of natural sand in mine, river or lake, and in its composition, the content of silicon dioxide is not
Less than 60%, after processed screening, the granular size overwhelming majority of sand is distributed in 0.8 < d (d is the diameter of sand grains) < 2.8mm
Between, there is no clay and other foreign material, the toasted dried use of sand material, and have that hardness is big, grain shape irregular, flowing
The features such as performance is good.
Occurring in that a kind of pressure-air spray regime by compression carries out the method adding sand at present, it includes being sequentially communicated
Sand tank, transmission cylinder and sand-blasting gun, open the interface channel between sand tank and transmission cylinder, make the brake sand in sand tank lean on
Deadweight flows in transmission cylinder, closes interface channel, is inserted by sand-blasting gun in the sandbox of sand sprayer, then produced by compressor
Pressure differential and high velocity air, drive sand material quickly move through sand-blasting gun and enter in sandbox, the method achieve and locomotive is added sand
The automatization of process, conveniently controls sand feeding amount and adds the sand time, the dust pollution produced when simultaneously alleviating perfusion.But above-mentioned
In method, the sealing structure being positioned between sand tank and transmission cylinder also exists the problem of sealing effectiveness difference, often occur leakage hourglass gas,
Even seal the situation that structure is blocked by sand material, have a strong impact on and add being normally carried out of sand work.
Chinese patent 200820085553.1 discloses one and covers sand molding machine sand adding mechanism, and the program is at sand hopper sand export
The junction of blasting unit is provided with one can be according to the check valve that draught head is opened as sealing structure, and this sealing structure includes
Connecting seat and float ball, described connection seat inner hollow and be provided with the grid for support floating ball, described float ball is positioned at even
Joint chair is internal and there is space with being connected between seat.Float ball is stopped by grid in its natural state, the sand flowed out from sand export
Material is through float ball and the space being connected between seat, then is entered in blasting unit by grid；And when penetrating sand state, float ball is penetrated
Compressed air in sand cylinder is upwards pushed up, and is held against state with being connected seat, thus realizes the closure to sand export.Described scheme
Have the disadvantage in that 1, the action of float ball not by manual control, not carrying out sandblasting when, sand material is incessantly from sand hopper
In entrance blasting unit；2, float ball is easy to spin because of the effect of high velocity air during closure sand export,
Affect sealing；3, sand material can produce long term wear to the surface of float ball in dropping process, affects the sealing of float ball
And service life.
Utility model content
The purpose of this utility model is to provide a kind of sealing structure for track traffic sanding device, to solve background
The problem proposed in technology.
For achieving the above object, this utility model provides a kind of sealing structure for track traffic sanding device, its
Be arranged at the junction of sand tank and transmission cylinder, including the cylinder mounting seat being arranged within sand tank, be vertically arranged at described
Cylinder in cylinder mounting seat, it is arranged at cylinder piston rod bottom and can realize connecting between sand tank and transmission cylinder by axially-movable
Connect the filler door of passage switching, be located on the air bag mounting seat at the sand inlet of transmission cylinder top and along described air bag mounting seat
The air bag of the embedded setting of inwall；
The top of described air bag mounting seat extends inwardly in a radial direction a segment distance and forms the jag of annular, described
The diameter of filler plate is less than the internal diameter of its underpart more than the internal diameter on described air bag mounting seat top, by table on described filler door
The fitting tightly of face and described jag lower surface can block the continuation of sand material and flow and realize axial seal, and described air bag passes through
In the valve carried, the flowing of gas realizes inflation/deflation process, and described air bag is circular tube structure when inflation,
The effect of air pressure its extrados lower fits tightly with the inwall of described air bag mounting seat, and its intrados is radially filled out with described
The edge of bin gate fits tightly, thus realizes the radial seal of interface channel between sand tank and transmission cylinder.
Preferably, maximum change distance when described air bag inside contracts with venting when inflation is not less than 6mm.
Preferably, the material of described air bag is abrasive rubber.
Preferably, the thickness of described air bag is 1.5～3mm, and described air bag is when venting inside contracts and between described filler door
There is space, contact between the two can be avoided to produce friction.
Preferably, the external rings at described cylinder piston rod is provided with for preventing sand material from impacting its axially-movable
Piston rod guard shield.
Preferably, described filler door is connected with described cylinder piston rod by nut, and can be by the up-down adjustment of nut
Determine the position of described filler door.
Preferably, described air bag mounting seat is fixing with sand tank and transmission cylinder respectively by the way of bolt and sealing gasket connects
Connect.
Preferably, described cylinder mounting seat is connected by bolt and the mounting seat being arranged on sand tank inwall are fixing.
The technical scheme that this utility model provides has the advantages that
1, described sealing structure drives the axially-movable of filler door by cylinder, thus realizes between sand tank and transmission cylinder
The control of the opening and closing of interface channel, and can be according to actual needs to adding the sand time and sand feeding amount is adjusted.
2, described sealing structure is by the way of secondary seal, first blocks the axial flowing of sand material, then passes through swelling gasbag
Realize the radial seal of filler door, not only there is good sealing effectiveness, it is thus also avoided that sand material directly contacts, significantly with air bag
Decrease abrasion that air bag is subject to and extend its service life, decreasing the maintenance frequency of sanding device.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, required in embodiment being described below
Accompanying drawing to be used is briefly described, it should be apparent that, drawings discussed below is only enforcements more of the present utility model
Example, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtains according to these accompanying drawings
Obtain other accompanying drawing, wherein:
Fig. 1 is the structural representation of this utility model preferred embodiment；
Fig. 2 is embodiment illustrated in fig. 1 and sand tank and the decomposing schematic representation of the assembling structure of transmission cylinder；
Fig. 3 is filler door and the air bag mounting seat sectional view when sealing in embodiment illustrated in fig. 1；
In figure: 01 sand tank, 02 transmission cylinder；1 cylinder mounting seat, 11 piston rod guard shields, 2 cylinders, 21 cylinder piston rods, 3
Filler door, 4 air bag mounting seats, 41 jags, 5 air bags, 51 valves.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise
The all other embodiments obtained, broadly fall into the scope of this utility model protection.
See Fig. 1～Fig. 3, a kind of sealing structure for track sanding device, be arranged at sand tank 01 and transmission cylinder 02
Junction, described sealing structure includes being arranged at the cylinder mounting seat 1 within sand tank 01, is vertically arranged at described cylinder peace
Fill the cylinder 2 on seat 1, be arranged at cylinder piston rod 21 bottom and can be realized between sand tank 01 and transmission cylinder 02 by axially-movable
The filler door 3 of interface channel opening and closing, it is located on the air bag mounting seat 4 at the sand inlet of transmission cylinder 02 top and along described air bag
The air bag 5 of the embedded setting of mounting seat 4 inwall；
The top of described air bag mounting seat 4 extends inwardly in a radial direction a segment distance and forms the jag 41 of annular,
The diameter of described filler plate 3 is less than the internal diameter of its underpart more than the internal diameter on described air bag mounting seat 4 top, by described filler
The fitting tightly of door 3 upper surfaces and described jag 41 lower surface can block the continuation of sand material and flow and realize axial seal, institute
State air bag 5 and realize inflation/deflation process by the flowing of gas in the valve 51 that carries, and described air bag 5 is ring when inflation
Shape tubular structure, its extrados fits tightly with the inwall of described air bag mounting seat 4 under the influence of air pressure, and its intrados is along footpath
Fit tightly (as shown in phantom in Figure 3) to the edge in direction Yu described filler door 3, thus realize sand tank 01 and transmission cylinder
The radial seal of 02 interface channel.
In the present embodiment, described cylinder mounting seat 1 is fixed with the mounting seat being arranged on sand tank 01 inwall by bolt
Connect.
In the present embodiment, the external rings at described cylinder piston rod 21 is provided with for preventing sand material from causing its axially-movable
The piston rod guard shield 11 of impact, controls described gas also by the intake velocity regulating described cylinder 2 air inlet two ends simultaneously
The movement velocity of cylinder piston rod 11, to ensure the stability of described filler door 3 opening and closing.
In the present embodiment, described filler door 3 is connected with described cylinder piston rod 11 by nut, and can pass through the upper of nut
Lower regulation determines the position of described filler door 3.
In the present embodiment, described air bag mounting seat 4 by the way of bolt and sealing gasket respectively with sand tank 01 and launch
Cylinder 02 is fixing to be connected.
There is space (as shown on the solid line in figure 3) when venting inside contracts and between described filler door 3 in described air bag 5, can avoid
Between Er Zhe, contact produces friction, in order to the free motion in the axial direction of described filler door 3.In the present embodiment, described air bag 5
Material is abrasive rubber and its thickness is 2mm, and maximum change distance when described air bag 5 inside contracts with venting when inflation is not
Less than 6mm.
The seal process of described sealing structure is as follows:
1) drive cylinder 2 to make cylinder piston rod 21 bounce back, and drive filler door 3 to move up to, at sand inlet, make filler
The door upper surface of 3 fits tightly with the jag 41 of air bag mounting seat 4, and the continuation having blocked sand material completely is flowed and realizes axially
Seal；
2) keep filler door 3 and air bag mounting seat 4 is close to state 10s, makes to be positioned at the air bag that filler door 3 inside contracts with venting
The sand material of 5 gaps falls in transmission cylinder 02 completely；
3) inflated to air bag 5 by valve 51, make air bag 5 expand and form circular tube structure, under the influence of air pressure
Its extrados fits tightly with the inwall of air bag mounting seat 4, and its intrados radially edge with filler door 3 closely pastes
Close, thus realize the radial seal of interface channel between sand tank 01 and transmission cylinder 02.
When needs add sand in transmission cylinder 02, first pass through valve 51 and exit, make air bag 5 inside contract back in air bag mounting seat 4
And and filler door 3 between form space, then drive cylinder 2 to make cylinder piston rod 21 extend, and drive filler door 3 to move downward,
Making filler door 3 stagger with air bag mounting seat 4, now the sand material in sand tank 01 is fallen to transmission cylinder 02 by self gravitation effect
In, finally repeat above-mentioned seal process, complete transmission cylinder 02 is added the process of sand.
The foregoing is only preferred embodiment of the present utility model, not thereby limit patent protection model of the present utility model
Enclosing, for a person skilled in the art, this utility model can have various modifications and variations.In spirit of the present utility model
Within principle, every any improvement utilizing this utility model description and accompanying drawing content to be made or equivalent, directly or
Indirectly it is used in other relevant technical field, all should be included in scope of patent protection of the present utility model.
Claims (8)
1., for a sealing structure for track traffic sanding device, it is arranged at the connection of sand tank (01) and transmission cylinder (02)
Place, it is characterised in that include being arranged at the internal cylinder mounting seat (1) of sand tank (01), being vertically arranged at the installation of described cylinder
Seat (1) on cylinder (2), be arranged at cylinder piston rod (21) bottom and can by axially-movable realize sand tank (01) with transmitting
The filler door (3) of interface channel opening and closing between cylinder (02), be located on the air bag mounting seat (4) at the sand inlet of transmission cylinder (02) top,
And the air bag (5) along the embedded setting of described air bag mounting seat (4) inwall；
The top of described air bag mounting seat (4) extends inwardly in a radial direction a segment distance and forms the jag (41) of annular,
The diameter of described filler plate (3) is less than the internal diameter of its underpart more than the internal diameter on described air bag mounting seat (4) top, by described
The fitting tightly of filler door (3) upper surface and described jag (41) lower surface can block the continuation of sand material and flow and realize axial
Sealing, described air bag (5) passes through the flowing of gas in the valve (51) carried and realizes inflation/deflation process, and described air bag (5) exists
Being circular tube structure during inflation, its extrados is tight with the inwall of described air bag mounting seat (4) under the influence of air pressure
Laminating, its intrados radially edge with described filler door (3) fits tightly, thus realize to sand tank (01) with send out
Penetrate the radial seal of interface channel between cylinder (02).
Sealing structure the most according to claim 1, it is characterised in that described air bag (5) is when inflation and in venting
Maximum change distance during contracting is not less than 6mm.
Sealing structure the most according to claim 2, it is characterised in that the material of described air bag (5) is abrasive rubber.
Sealing structure the most according to claim 3, it is characterised in that the thickness of described air bag (5) is 1.5～3mm, and institute
State air bag (5) and there is space when venting inside contracts and between described filler door (3), contact between the two can be avoided to produce friction.
Sealing structure the most according to claim 4, it is characterised in that the external rings at described cylinder piston rod (21) is provided with
For the piston rod guard shield (11) preventing sand material from its axially-movable being impacted.
Sealing structure the most according to claim 5, it is characterised in that described filler door (3) is by nut and described cylinder
Piston rod (11) connects, and can be determined the position of described filler door (3) by the up-down adjustment of nut.
Sealing structure the most according to claim 6, it is characterised in that described air bag mounting seat (4) passes through bolt and sealing
The mode of pad is fixing with sand tank (01) and transmission cylinder (02) respectively to be connected.
Sealing structure the most according to claim 7, it is characterised in that described cylinder mounting seat (1) passes through bolt and setting
Mounting seat on sand tank (01) inwall is fixing to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620548326.2U CN205668557U (en) | 2016-06-07 | 2016-06-07 | A kind of sealing structure for track traffic sanding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620548326.2U CN205668557U (en) | 2016-06-07 | 2016-06-07 | A kind of sealing structure for track traffic sanding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205668557U true CN205668557U (en) | 2016-11-02 |
Family
ID=57191595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620548326.2U Active CN205668557U (en) | 2016-06-07 | 2016-06-07 | A kind of sealing structure for track traffic sanding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205668557U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106043327A (en) * | 2016-06-07 | 2016-10-26 | 株洲联诚集团有限责任公司 | Sealing structure used for track traffic sand feeding device and sealing method of sealing structure |
| CN114275551A (en) * | 2021-12-31 | 2022-04-05 | 浙江汉信科技有限公司 | Powder feeding device and pushing device thereof |
-
2016
- 2016-06-07 CN CN201620548326.2U patent/CN205668557U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106043327A (en) * | 2016-06-07 | 2016-10-26 | 株洲联诚集团有限责任公司 | Sealing structure used for track traffic sand feeding device and sealing method of sealing structure |
| CN106043327B (en) * | 2016-06-07 | 2018-07-27 | 株洲联诚集团控股股份有限公司 | A kind of sealing structure and its encapsulating method for rail traffic sanding device |
| CN114275551A (en) * | 2021-12-31 | 2022-04-05 | 浙江汉信科技有限公司 | Powder feeding device and pushing device thereof |
| CN114275551B (en) * | 2021-12-31 | 2023-12-19 | 浙江汉信科技有限公司 | Powder feeding device and pushing device thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106043327A (en) | Sealing structure used for track traffic sand feeding device and sealing method of sealing structure | |
| CN1093068C (en) | Waterproof pit cover | |
| CN205668557U (en) | A kind of sealing structure for track traffic sanding device | |
| CN108532732A (en) | A kind of anti-clogging inspection well cover | |
| WO2021134991A1 (en) | Water acting piston-type sealing device for side suction port of trailing suction hopper dredger | |
| CN108677783A (en) | A kind of flexible road deceleration strip | |
| CN208651309U (en) | Pneumatic control proportioning throttling hydraulicdirectional control valve | |
| CN107051872A (en) | Swing blanking type magnetic separation screening integration apparatus | |
| CN210564652U (en) | Underground mine filling buffer | |
| CN109484123A (en) | A kind of bodywork height regulating system and method | |
| CN108612903A (en) | A kind of energy dissipating Slow Close air inlet and exhaust valve | |
| CN106870779B (en) | Protecting against shock lift check valve | |
| CN207141341U (en) | Inflation compartment-type rubber caisson with hanger | |
| CN109506001A (en) | A kind of novel protection against erosion compensation flap | |
| CN110241795A (en) | A kind of ship compartment cleaning door pneumatic driving bleaching device | |
| CN107983559A (en) | Far range spraying apparatus device | |
| CN208364917U (en) | A kind of energy dissipating Slow Close air inlet and exhaust valve | |
| CN108179729A (en) | A kind of Novel rubber dam body | |
| CN205089589U (en) | Fluid end assembly of plunger pump | |
| CN210800189U (en) | Pneumatic double-layer turning plate type ash discharging valve | |
| CN209917474U (en) | Ash bucket ash discharging device of bag type dust collector | |
| CN106838387B (en) | The assembly method of protecting against shock lift check valve | |
| CN111545281A (en) | Jaw breaker that factor of safety is high | |
| CN205978754U (en) | Novel high -speed admission valve that exhausts of combined type | |
| CN206318490U (en) | A kind of air flume cut-off equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |