CN104890682A - Locomotive sand scattering device capable of clearing fine sand grains automatically - Google Patents
Locomotive sand scattering device capable of clearing fine sand grains automatically Download PDFInfo
- Publication number
- CN104890682A CN104890682A CN201510341549.1A CN201510341549A CN104890682A CN 104890682 A CN104890682 A CN 104890682A CN 201510341549 A CN201510341549 A CN 201510341549A CN 104890682 A CN104890682 A CN 104890682A
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- CN
- China
- Prior art keywords
- sand
- stucco
- air
- tuyere
- high pressure
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- 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.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C15/00—Maintaining or augmenting the starting or braking power by auxiliary devices and measures; Preventing wheel slippage; Controlling distribution of tractive effort between driving wheels
- B61C15/08—Preventing wheel slippage
- B61C15/10—Preventing wheel slippage by depositing sand or like friction increasing materials
- B61C15/102—Preventing wheel slippage by depositing sand or like friction increasing materials with sanding equipment of mechanical or fluid type, e.g. by means of steam
Abstract
The invention provides a locomotive sand scattering device capable of clearing fine sand grains automatically. An elastic air storage bag and self-clearing sand scattering and sand stirring air nozzles are added on the basis of an original sand scattering machine. When an air inlet of the sand scattering device is closed, the elastic air storage bag is used for balancing air pressure in an air inlet pipe and a cavity of the sand scattering device, and air in a sand scattering device body is prevented from backward flowing into a high-pressure air inlet pipe to a larger extent; the structure of the sand scattering air nozzle is special, an air return groove is designed in an outlet end of the sand scattering air nozzle; when air and dust in the cavity of the sand scattering device flow back into the high-pressure air inlet pipe, a part of dust can be retained in the air return groove due to the expansion effect of the air return groove, and accordingly, the amount of dust entering the high-pressure air inlet pipe is reduced. Besides, the inside of the sand scattering air nozzle is conical, so that the fine sand grains backwards sucked into the air inlet pipe can be accumulated at an air nozzle outlet along with air current when the sand scattering device is started again and can be discharged out of the high-pressure air inlet pipe smoothly as the air pressure is increased, and the sand scattering device has an automatic clearing function on the fine sand grains.
Description
Technical field
The present invention relates to a kind of locomotive sand sprayer, particularly there is Automatic clearance fine sand grain and nonclogging locomotive sand sprayer.
Background technology
Sander is a vitals on locomotive, by increasing wheel-rail friction to wheel to the mode of stucco between rail, very important effect is played in locomotive climbing, acceleration, braking etc. run, preventing wheel drive track adhesion from reducing causes train wheel to dally, and ensures that locomotive normally runs and do not occur to stop on the way.
The situation that current domestic sander blocks up sand occurs now and then, and threatens the safe in operation of locomotive greatly, in order to ensure the smooth operation of locomotive, needing the fine sand grain in periodic cleaning sander intake stack, to prevent sander from blocking, causing operating troubles.The scale removal process of sander is more loaded down with trivial details, wastes time and energy, and significantly increases the work capacity of personnel after sale.Therefore solve the stifled sand situation of sander, or increase cleaning cycle length, then can save a large amount of past-sale service work.
The moment that present sander terminates in stucco, supplementing of gas is lost in intake stack, but the high pressure gas cognition in intake stack continues to flow fast forward, thus cause the pressure of intake stack near entrance to reduce, even there is zone of negative pressure, and the air pressure in sander cavity can be larger, thus easily cause air-flow by stucco with stir sand tuyere and reflux and enter in intake stack, the dust be mingled with in air-flow or fine sand grain then can enter in intake stack, along with the increase of circulation, sander tuyere just has the danger of blocking.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, provide one to have Automatic clearance fine sand grain and nonclogging locomotive sand sprayer.
Technical scheme of the present invention is: a kind of locomotive sand sprayer of self-cleaning fine sand grain, comprise stucco body, intermediate hsg, baffle plate, high pressure blast pipe, stucco tuyere, stir sand tuyere, sand inlet, sand export, wherein, high pressure blast pipe is by stucco tuyere with stir sand tuyere and communicate with sander intracoelomic cavity; It is characterized in that:
High pressure blast pipe in described stucco body is provided with T-pipe joint and elasticity air storage bag, and namely T-pipe joint is arranged on high pressure blast pipe, and elasticity air storage bag is arranged on T-pipe joint; Be divided into as stucco inner chamber by intermediate hsg in stucco body and stir sand inner chamber, two inner chamber tops of stucco body communicate;
Described stucco tuyere is identical with stirring sand air nozzle structure, two tuyeres are all arranged on stucco body, i.e. stucco tuyere and stir sand tuyere upper end and communicate with high pressure blast pipe respectively, lower end is respectively with stucco inner chamber with stir sand inner chamber and communicate, and the endoporus of two tuyeres is taper hole structure; Namely the admission port of two tuyeres is large, and air extractor duct reduces gradually, and two wind nozzle outlet ends are equipped with the return air groove of anti-suction dust; This locomotive sand sprayer is installed on below sandbox.
The described sand tuyere that stirs enters in stucco inner chamber for being dug by the grains of sand stirred in sand inner chamber, blows out under the action of high-speed airflow of stucco tuyere from sand export.
Be provided with elasticity air storage bag in the present invention, in this elasticity air storage bag, can high pressure gas be stored.When sander is opened, now, in elasticity air storage bag, gaseous tension is low, and the gas in the high pressure blast pipe in sander can supplement and enter in elasticity air storage bag, impels elasticity air storage bag expansion stored-gas, when the high pressure blast pipe on sander is closed, stucco stops, and the gaseous tension in high pressure blast pipe can decline, and the gas in elasticity air storage bag will flow in high pressure blast pipe and tuyere and enter in stucco body, guarantee that in high pressure blast pipe, gaseous tension reduces gradually, avoid backflow.
Two air nozzle structures in the present invention improve; stucco tuyere is changed into the tuyere of taper hole structure; make its stucco and stir sand tuyere admission port large; air extractor duct reduces gradually; thus tuyere air extractor duct speed is got a promotion, when there being the tiny grains of sand to enter in tuyere, when again opening sander; the tiny grains of sand in tuyere can be blown tuyere, make sander be provided with self-cleaning function to dust and fine sand grain.Simultaneously, at two wind nozzle outlet places, anti-suction dust structure is set, namely the return air groove of anti-suction dust is provided with at two wind nozzle outlet ends, when gas because when backflow enters stucco tuyere, the dust adulterated in gas or the tiny grains of sand, now, because air-flow is widened and caused dust or the tiny grains of sand to rest in the groove at stucco wind nozzle outlet place herein, when after flow slowing down, dust or the tiny grains of sand can drop again under gravity, decrease suck-back and enter dust in tuyere and fine sand amount.
In sum, high pressure blast pipe in the present invention provides high pressure draft for two tuyeres, high pressure draft passes through tuyere, the sand stirred in sand inner chamber on the right side of stucco body is kicked up, enter on the left of stucco body in stucco inner chamber, subsequently under the blowing of the high pressure gas of stucco tuyere, sand scatters between wheel track from sand export, to increase wheel-rail friction, ensure that locomotive normally runs; Two wind nozzle outlet ends in the present invention are return air groove structure, can reduce to a certain extent and enter dust and fine sand grain amount in high pressure intake stack, and stucco tuyere interior tapered hole is convenient to dust and fine sand grain in high pressure intake stack and is blown out; Elasticity air storage bag is stored-gas when sander high pressure gas are opened, when high pressure gas are closed, gas in elasticity air storage bag is vented in high pressure intake stack, step-down is to balance high pressure intake stack and the endoceliac air pressure of sander gradually, avoid the backflow of gas when sander cuts out, solve the difficult problem that sander blocks up sand.。
Accompanying drawing explanation
Fig. 1 is the structural representation of sander system;
Fig. 2 is stucco tuyere upper end surface structure schematic diagram;
Fig. 3 is stucco tuyere C-C sectional structure schematic diagram;
In figure: 1-stucco body, 2-intermediate hsg, 3-baffle plate, 4-T-pipe joint, 5-high pressure blast pipe, 6-elasticity air storage bag, 7-stucco tuyere, 8-stirs sand tuyere, 9-sand inlet, 10-sand export, 11-stucco inner chamber, 12-stirs sand inner chamber, 13-return air groove, 14-tuyere admission port, 15-tuyere air extractor duct.
Detailed description of the invention
With reference to accompanying drawing, a kind of locomotive sand sprayer of self-cleaning fine sand grain, comprise stucco body 1, intermediate hsg 2, baffle plate 3, high pressure blast pipe 4, stucco tuyere 7, stir sand tuyere 8, sand inlet 9, sand export 10, wherein, high pressure blast pipe 4 is by stucco tuyere 7 with stir sand tuyere 8 and communicate with stucco body 1 inner chamber; It is characterized in that:
High pressure blast pipe 4 in described stucco body 1 is provided with T-pipe joint 5 and elasticity air storage bag (6), and namely T-pipe joint 5 is arranged on high pressure blast pipe 4, and elasticity air storage bag 6 is arranged on T-pipe joint 5; Be divided into as stucco inner chamber 11 by intermediate hsg 2 in stucco body 1 and stir sand inner chamber 12, two inner chamber tops of stucco body 1 communicate;
Described stucco tuyere 7 is identical with stirring sand tuyere 8 structure, two tuyeres are all arranged on stucco body 1, i.e. stucco tuyere 7 and stir sand tuyere 8 upper end and communicate with high pressure blast pipe 4 respectively, lower end is respectively with stucco inner chamber 11 with stir sand inner chamber 12 and communicate, and the endoporus of two tuyeres is taper hole structure; Namely the admission port 14 of two tuyeres is large, and air extractor duct 15 reduces gradually, and two wind nozzle outlet ends are equipped with the return air groove 13 of anti-suction dust; This locomotive sand sprayer is installed on below sandbox.
The described sand tuyere 8 that stirs enters in stucco inner chamber 11 for being dug by the grains of sand stirred in sand inner chamber 12, blows out under the action of high-speed airflow of stucco tuyere 7 from sand export 10.
Elasticity air storage bag 6 is provided with in the present invention, high pressure gas can be stored in this elasticity air storage bag 6, when sander is opened, now, in elasticity air storage bag 6, gaseous tension is low, gas in high pressure blast pipe 4 in sander can supplement and enter in elasticity air storage bag 6, elasticity air storage bag 6 is impelled to expand stored-gas, when the high pressure blast pipe 4 on sander is closed, stucco stops, gaseous tension in high pressure blast pipe 4 can decline, gas in elasticity air storage bag 6 will flow into high pressure blast pipe 4 and two tuyeres 7, enter in stucco body 1 in 8, guarantee that in high pressure blast pipe 4, gaseous tension reduces gradually, avoid backflow.
Two tuyeres 7 in the present invention; 8 improve in structure; two tuyeres are changed into the tuyere of taper hole structure; make its admission port 14 large, air extractor duct 15 reduces gradually, thus two tuyere air extractor duct speed are got a promotion; when there being the tiny grains of sand to enter in two tuyeres; when again opening sander, the tiny grains of sand in tuyere can be blown tuyere, make sander be provided with self-cleaning function to dust and fine sand grain.Meanwhile, anti-suction dust structure is set at two wind nozzle outlet 15 places, is namely provided with the return air groove 13 of anti-suction dust at two tuyeres 7,8 exit end.When gas because when backflow enters tuyere, the dust adulterated in gas or the tiny grains of sand, now, because air-flow is herein widened and dust or the tiny grains of sand rest in the groove at wind nozzle outlet place, when after flow slowing down, dust or the tiny grains of sand can drop again under gravity, decrease and enter dust in tuyere and fine sand amount.
High pressure blast pipe 4 in the present invention for stucco tuyere 7 with stir sand tuyere 8 high pressure draft be provided, the sand stirred in sand inner chamber 12 is kicked up by stirring sand tuyere 8 by high pressure draft, enter in the interior left side stucco inner chamber 11 of stucco body 1, subsequently under the blowing of the high pressure gas of stucco tuyere 7, sand scatters between wheel track from sand export 10, to increase wheel-rail friction, ensure that locomotive normally runs; Two wind nozzle outlet ends in the present invention are groove structure, and reduce entering dust and fine sand grain amount in high pressure blast pipe 4 to a certain extent, two tuyere interior tapered holes are convenient to dust and fine sand grain in high pressure blast pipe 4 and are blown out; Elasticity air storage bag 6 is stored-gas when sander high pressure gas are opened, when high pressure gas are closed, gas in elasticity air storage bag 6 is vented in high pressure blast pipe 4, step-down is to balance high pressure blast pipe 4 and stucco body stucco inner chamber 11 and the air pressure stirred in sand inner chamber 12 gradually, avoid the backflow of gas when sander cuts out, decrease the possibility that sander blocks up sand.Two tuyeres are conducive to air-flow on the one hand and accelerate to flow in sander cavity, on the other hand, when having dust or fine sand grain in high pressure blast pipe 4, along with sander is opened again, dust and fine sand grain are blown out by tuyere by high pressure draft easily, make sander be provided with certain self-cleaning function.Secondly; two wind nozzle outlet ends are designed with groove; when there is backflow in sander; major part is stayed in a groove because of the expansion effect of groove stream field for dust in air-flow and the meeting of fine sand grain; when air-flow stops backflow falling under gravity into again in sander cavity 1; greatly reducing the amount that suck-back enters dust and fine sand grain in blast pipe 4, solve the difficult problem that sander blocks up sand.
When preparation stucco opened by sander, high pressure gas are full of in high pressure blast pipe 4, due to the effect of pressure reduction, gas can enter in elasticity air storage bag 6, elasticity air storage bag 6 is expanded stored-gas, gradually elasticity air storage bag 6 pressure can with equilibrium of pressure in high pressure blast pipe 4, so then complete elasticity air storage bag 6 and inflate; When sander cuts out, in high pressure blast pipe 4, air pressure can reduce, in elasticity air storage bag 6, pressure is higher than intake stack pressure, then can be vented in blast pipe 4 and carry out equilibrium air pressure, namely the air pressure in blast pipe 4 is a process reduced gradually, and this just becomes to decrease to a great extent gas and enters the possibility of blast pipe from stucco inner chamber 11 with stirring sand inner chamber 12 to reflux.
Claims (1)
1. the locomotive sand sprayer of a self-cleaning fine sand grain, comprise stucco body (1), intermediate hsg (2), baffle plate (3), high pressure blast pipe (4), stucco tuyere (7), stir sand tuyere (8), sand inlet (9), sand export (10), wherein, high pressure blast pipe (4) is by stucco tuyere (7) with stir sand tuyere (8) and communicate with stucco body (1) inner chamber; It is characterized in that:
High pressure blast pipe (4) in A, described stucco body (1) is provided with T-pipe joint (5) and elasticity air storage bag (6), and namely T-pipe joint (5) is arranged on high pressure blast pipe (4), and elasticity air storage bag (6) is arranged on T-pipe joint (5); Be divided into as stucco inner chamber (11) by intermediate hsg (2) and stirred sand inner chamber (12) in stucco body (1), two inner chamber tops of stucco body (1) communicate;
B, described stucco tuyere (7) are identical with stirring sand tuyere (8) structure, two tuyeres are all arranged on stucco body (1), i.e. stucco tuyere (7) and stir sand tuyere (8) upper end and communicate with high pressure blast pipe (4) respectively, lower end is respectively with stucco inner chamber (11) with stir sand inner chamber (12) and communicate, and the endoporus of two tuyeres is taper hole structure; Namely the admission port (14) of two tuyeres is large, and air extractor duct (15) reduces gradually, and two wind nozzle outlet ends are equipped with the return air groove (13) of anti-suction dust;
C, the described sand tuyere (8) that stirs enter in stucco inner chamber (11) for being dug by the grains of sand stirred in sand inner chamber (12), blow out under the action of high-speed airflow of stucco tuyere (7) from sand export (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510341549.1A CN104890682B (en) | 2015-06-19 | 2015-06-19 | Locomotive sand scattering device capable of clearing fine sand grains automatically |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510341549.1A CN104890682B (en) | 2015-06-19 | 2015-06-19 | Locomotive sand scattering device capable of clearing fine sand grains automatically |
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| CN104890682A true CN104890682A (en) | 2015-09-09 |
| CN104890682B CN104890682B (en) | 2017-02-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101733338B1 (en) | 2016-01-13 | 2017-05-08 | 세종대학교산학협력단 | Rice washing device |
| CN108545089A (en) * | 2018-04-27 | 2018-09-18 | 山东科技大学 | Mining electric locomotive sander |
| CN112233527A (en) * | 2020-10-19 | 2021-01-15 | 张广君 | Three-dimensional electronic sand table cleaning method for urban planning and design |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107472263B (en) * | 2017-06-30 | 2019-03-19 | 中车大连机车车辆有限公司 | A kind of stucco unit preventing stucco blockage |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101733338B1 (en) | 2016-01-13 | 2017-05-08 | 세종대학교산학협력단 | Rice washing device |
| CN108545089A (en) * | 2018-04-27 | 2018-09-18 | 山东科技大学 | Mining electric locomotive sander |
| CN108545089B (en) * | 2018-04-27 | 2023-12-12 | 唐山森普矿山装备有限公司 | Sand spraying device for mining electric locomotive |
| CN112233527A (en) * | 2020-10-19 | 2021-01-15 | 张广君 | Three-dimensional electronic sand table cleaning method for urban planning and design |
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| Publication number | Publication date |
|---|---|
| CN104890682B (en) | 2017-02-01 |
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Effective date of registration: 20230608 Address after: 412000 Hunan Province, Zhuzhou Shifeng District Tian Xin North Gate Patentee after: HUNAN LINCE ROLLING STOCK EQUIPMENT Co.,Ltd. Address before: 412000 technical management department, Lianxin group, Tianxin north gate, Shifeng District, Zhuzhou, Hunan Patentee before: ZHUZHOU LINCE GROUP Co.,Ltd. |
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