CN109338978B - Device for comprehensively clearing railway accumulated sand and packaging accumulated sand - Google Patents
Device for comprehensively clearing railway accumulated sand and packaging accumulated sand Download PDFInfo
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- CN109338978B CN109338978B CN201811232951.6A CN201811232951A CN109338978B CN 109338978 B CN109338978 B CN 109338978B CN 201811232951 A CN201811232951 A CN 201811232951A CN 109338978 B CN109338978 B CN 109338978B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H8/00—Removing undesirable matter from the permanent way of railways; Removing undesirable matter from tramway rails
- E01H8/10—Removing undesirable matter from rails, flange grooves, or the like railway parts, e.g. removing ice from contact rails, removing mud from flange grooves
- E01H8/105—Pneumatically or hydraulically loosening, removing or dislodging undesirable matter, e.g. removing by blowing, flushing, suction; Application of melting liquids; Loosening or removing by means of heat, e.g. cleaning by plasma torches, drying by burners
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- Structural Engineering (AREA)
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
- Basic Packing Technique (AREA)
Abstract
The invention relates to a device for clearing railway accumulated sand in an omnibearing way and packaging the accumulated sand, which is characterized in that hydraulic mechanisms are arranged on two sides of the front end of a vehicle body, and are connected with a sand scraping system to control the height of the sand scraping system above a rail; two disc type sand removing mechanisms are arranged between the front end wheel of the vehicle body and the sand scraping system and are respectively positioned right above the rail, a sand collecting system is arranged above the vehicle body between the two wheels and is used for collecting, sealing and packaging the accumulated sand removed by the sand scraping system, and the packaged accumulated sand is transported to the side of the rail through a belt conveying system; the pneumatic sand removing mechanism is arranged at the rear end of the vehicle body, and sprays high-pressure air above the rails to remove residual sand grains above the rails. The invention has certain use value and economic value for eliminating the potential safety hazard of the train and ensuring the safe operation of the train.
Description
Technical Field
The invention relates to a device capable of removing accumulated sand on an iron road, in particular to a device which can comprehensively remove sand on a rail, encapsulate the accumulated sand and prevent the accumulated sand from burying the railway for the second time.
Background
With the rapid development of railway transportation in China, more and more railway lines are laid in regions close to deserts in northwest regions such as Qinghai and Xinjiang, local vegetation is sparse, and wind and sand are more. Since the train is communicated on the new Landshui railway and the Qinghai-Tibet railway, the wind and sand disasters become important hidden dangers of safe operation of the train, and the train is stopped due to the fact that the wind and sand bury the railway, so that great economic losses are caused to people going out and railway transportation. At present, the existing sand cleaning equipment can basically clean sand accumulated in a certain range between the inner sides of two rails and the outer sides of the two rails, but cannot effectively clean sand particles remained on the rails. When a train passes through the sand grains, the sand grains can gnaw the rail, so that pits appear on the surface of the rail, and potential hazards are caused to the safe operation of the train; in addition, the existing sand cleaning device discharges accumulated sand to the two sides of the rail, the rail is easily buried again when the wind blows, and the risk of burying the secondary rail exists. Therefore, the invention is a device which can remove railway accumulated sand in all directions, especially the accumulated sand above the rails, and encapsulate the accumulated sand.
Disclosure of Invention
The invention provides a device for clearing railway accumulated sand in an all-dimensional way and packaging the accumulated sand, which is used for carrying out secondary clearing on the accumulated sand above a rail on the basis of clearing the accumulated sand between the inner sides of two rails and in a certain range of the outer sides of the two rails, thereby realizing the comprehensive sand removal above the rail and at the two sides. Meanwhile, the cleaned accumulated sand can be automatically packaged and delivered beside the railway, so that the railway is prevented from being buried for the second time by the accumulated sand. The packaged sandbag can be used in places such as typhoon resistance, flood control and the like, and has certain use value and economic value.
The purpose of the invention is realized by the following technical scheme:
a device for clearing railway accumulated sand in an omnibearing way and packaging the accumulated sand comprises a sand scraping system, a sand collecting system, a disc type sand removing mechanism, a pneumatic sand removing mechanism and a belt conveying system. The sand collecting plate of the sand scraping system collects accumulated sand in a certain range outside the rail, so that the sand scraping plate can conveniently scrape the sand, the sand collecting plate removes the accumulated sand collected at two sides and the middle of the rail, the accumulated sand is conveyed to the sand unloading port of the sand scraping system through the belt and then is discharged, and the accumulated sand is conveyed to the sand collecting bowl of the sand collecting system. The sand in the sand collecting bowl enters a sand collecting bag, is sealed and packed through an automatic sealing device, enters a belt conveying system, and is conveyed to the side of a railway through a belt. The disc type sand removing mechanism arranged at the front part of the front wheel of the device removes accumulated sand left above the rail, and the pneumatic sand removing mechanism arranged at the rear part of the rear wheel of the device sprays high-pressure air above the rail to further remove residual sand.
And hydraulic mechanisms are arranged on two sides of the shell of the sand scraping system and used for adjusting the distance between the bottom of the shell and the rail. The bottom of the shell is provided with an iron rail groove, the material of the part is polyurethane non-metal material, the part is arranged at a proper position above the rail, and accumulated sand on the rail is preliminarily cleaned. The sand collecting plates are arranged on the two sides of the shell of the sand scraping system close to the ground, so that accumulated sand in a certain range outside the rail can be collected, and the sand scraping plates can work conveniently. The sand scraping plate arranged on the belt is provided with a certain arc shape, so that accumulated sand can be collected conveniently. When the motor drives the driving shaft to rotate to drive the belt to transmit, and the inertia arc type sand scraping plate is moved to the position above the sand unloading opening, most accumulated sand falls into the sand unloading opening.
A sand collecting bowl is arranged above the sand collecting system and is opposite to a sand unloading opening of the sand scraping system for collecting accumulated sand. The lower end of the sand collecting bowl is provided with a discharge opening, and the discharge opening is provided with a sand baffle which can be opened and closed, so that the discharge opening is opened and closed. And a laser emitting device and a laser sensing device are arranged below the discharge opening and used for sensing the flow of accumulated sand, identifying whether the sand collecting bag is full, and feeding back a signal to a power and driving system if the sand collecting bag is full so as to close the sand baffle. The tail end of the discharge opening is opposite to a station on the circular feeding device, and a sand collecting bag is arranged on the station. An automatic sealing device is arranged between the lower part of the circular feeding device and the bearing box, so that the function of sealing and packaging the sand collecting bag is realized. The bearing box is used for bearing the weight of the sand collecting bag filled with sand, the bottom of the bearing box is provided with a baffle, and after the sand collecting bag is sealed, the baffle is opened. The sand collecting bag falls into a belt conveying system below, and the sand collecting bag is conveyed.
The disc type sand removing mechanism is arranged in front of the front wheel of the device and behind the sand scraping system. The mechanism can realize the distance between the disc and the rail through a crank rocker mechanism. The motor drives the disc to rotate above the rail, the cleaning beam is arranged below the disc, and the cleaning beam is in contact with the rail and rotates at a high speed continuously to clean sand accumulated above the rail.
The pneumatic sand removing mechanism is arranged at the rear part of the rear wheel of the device and is driven by an air compressor. A pressure reducing valve is arranged between the air compressor and the high-pressure air bottle to control the air pressure, a flow valve capable of controlling the flow is arranged at the outlet of the high-pressure air bottle to control the output air flow, and the high-pressure air is continuously sprayed above the iron rail at the rear end of the vehicle body through a high-pressure air hose to further remove sand particles on the iron rail.
The belt transmission system is arranged below the bearing box, the driving wheel of the mechanism is arranged on the vehicle body and driven by a motor III, the driven wheel extends out of the outer side of the rail and is connected with a steel frame fixed on the vehicle body, and a belt is arranged between the driving wheel and the driven wheel.
The invention has the advantages that:
the disc type sand removing mechanism and the pneumatic sand removing mechanism of the invention mainly aim at removing deep accumulated sand above the rail, and can control the rotating speed of the disc and the pressure and flow of gas according to the actual sand removing effect, thereby saving energy and prolonging the service life of equipment while ensuring the sand removing effect.
A laser emitting device and a laser sensing device are arranged below the aggregate bowl, and the laser emitting device and the laser sensing device feed back to a power and control system by sensing the flow of sand. The power and control system controls the opening and closing of the sand baffle at the discharge port, the sealing of the automatic sealing device, the automatic replacement of the station of the circular feeding device, the automatic putting of the storage box on the sand collecting bag and the operation of the belt conveying system, and the functions of automatic circular bagging, sealing and packaging of accumulated sand and delivering are realized.
Drawings
FIG. 1 is a schematic diagram of the structure of the apparatus of the present invention.
Fig. 2 is a schematic structural view of the sand-scraping system of the present invention.
Fig. 3 is a schematic structural view of the sand-collecting system of the present invention.
Fig. 4 is a structural schematic diagram of the disc type sand removing mechanism of the invention.
FIG. 5 is a schematic structural view of the pneumatic sand removing mechanism of the present invention.
Fig. 6 is a schematic view of the structure of the belt conveyor system of the present invention.
Detailed Description
The technical scheme of the invention is explained in detail in the following with the accompanying drawings:
FIG. 1 is a schematic diagram of the structure of the apparatus of the present invention. The device consists of a vehicle body 1, wheels 2, a power and control system 3, a hydraulic mechanism 4, a sand scraping system 5, a sand collecting system 6, a disc type sand removing mechanism 7, a pneumatic sand removing mechanism 8 and a belt conveying system 9. Wheels 2 are positioned above the rails to support the vehicle body 1, and the wheels 2 are connected to the vehicle body 1 through a conventional axle structure. The left side and the right side of the front end of the vehicle body 1 are both provided with hydraulic mechanisms 4, the hydraulic mechanisms 4 are connected with a sand scraping system 5, and the height of the sand scraping system 5 above a rail is controlled. Two disc type sand removing mechanisms 7 are arranged between the front-end wheels 2 of the vehicle body 1 and the sand scraping system 5 and are respectively positioned right above the rail, and a large amount of accumulated sand above the rail is removed through continuous high-speed rotation of the sweeping bundles below the discs and the rail. A sand collecting system 6 is arranged above the vehicle body 1 between the two wheels 2, the sand collecting system 6 collects, seals and packs accumulated sand removed by the sand scraping system 5, and the packed accumulated sand is transported to the side of a rail through a belt conveying system 9 arranged below the sand collecting system. The pneumatic sand removing mechanism 8 is arranged at the rear end of the vehicle body 1, two air pipeline air nozzles of the pneumatic sand removing mechanism are respectively arranged at a certain height above the rails, high-pressure air is continuously sprayed above the rails, and residual sand particles above the rails are removed.
Fig. 2 is a schematic structural diagram of the sand scraping system 5, which is composed of a shell 51, a sand collecting plate 52, an arc-shaped sand scraping plate 53, a motor I54, a driving wheel 55, a driven wheel 56, a belt 57 and a sand discharging port 58. Hydraulic mechanisms 4 are mounted on the left and right sides of the housing 51, and are connected to the vehicle body 1 via the hydraulic mechanisms 4 and shafts. The motor I54 is fixed to the vehicle body 1. The sand trap 52 is fixed to the lower end of the housing 51. A driving wheel 55 and a driven wheel 56 are arranged between the shells 51 through shafts, the motor I54 is connected with the driving wheel 55, a belt 57 is arranged between the driving wheel 55 and the driven wheel 56, and the arc-shaped sand scraping plate 53 is fixed on the belt 57. A sand discharge port 58 is provided below the housing 51. Before operation, the hydraulic mechanism 4 controls the sand scraping system 5 to adjust the height up and down, so that the bottom of the shell 51 fits above the rails at a proper height.
Fig. 3 is a schematic structural view of the sand trap system 6. The system is arranged below a sand scraping system 5 in the middle of a vehicle body 1 and consists of a sand collecting bowl 61, a sand blocking plate 62, a laser emitting device 63, a laser sensing device 64, a circulating feeding device 65, a sand collecting bag 66, a bearing box 67, a blocking plate 68, a storage box 69 and an automatic sealing device 610. The sand collecting bowl 61 is funnel-shaped and made of transparent material, and is positioned below the sand discharging port 58 of the sand scraping system 5. A sand blocking plate 62 is arranged in a cylindrical discharge opening at the tail end of the sand collecting bowl 61, and a laser emitting device 63 and a laser sensing device 64 are symmetrically arranged on the outer portion of the sand collecting bowl. Below the laser testing device there is a conventional circular feeder 65 with several stations for sand-collecting bags 66. A bearing box 67 is arranged at a station right below the sand collecting bowl 61, a baffle 68 which can be opened and closed is arranged below the bearing box 67, and the bearing box 67 is connected with the vehicle body 1. A storage box 69 is arranged right above the other stations, and a large number of sand accumulation bags 66 are placed inside the storage box 69. An automatic sealing device 610 is arranged below the circular feeding device 65 and above the bearing box 67, the automatic sealing device 610 is a conventional sealing device, and can be controlled by a power and control system 3 according to the principle of a supermarket plastic bag sealing machine.
Fig. 4 is a schematic structural view of the disc type sand removing mechanism 7. The mechanism is arranged behind a sand scraping system 5 at the front part of a front wheel 2 of a vehicle body 1 and consists of a motor II 71, a rotating shaft 72, a disc 73 and a cleaning beam 74. The disc type sand removing mechanism 7 is arranged above the rail through a crank rocker mechanism.
Fig. 5 is a schematic structural diagram of a pneumatic sand removing mechanism 8, which is arranged at the rear part of the rear wheel 2 of the vehicle body 1. The mechanism consists of an air compressor 81, a pressure reducing valve 82, a high-pressure air bottle 83, a flow valve 84 and an air hose 85. The air compressor 81 is fixed above the vehicle body 1 and is connected with the inlet end of a high-pressure air cylinder 83 through a pressure reducing valve 82, and the outlet end of the high-pressure air cylinder 83 passes through a flow valve 84 and is used for injecting air above a rail through the outlet of an air hose 85.
Fig. 6 is a schematic view of the structure of the belt conveyor system 9, which is disposed below the bearing box 67. A driving wheel 91 of the mechanism is arranged on a vehicle body 1 and driven by a motor III 92, a driven wheel 93 extends out of the outer side of a rail and is connected with a steel frame fixed on the vehicle body 1, and a belt 94 is arranged between the driving wheel 91 and the driven wheel 93.
When the invention is shut down, the sand baffle plate 62 of the sand collecting system 6, the baffle plate 68 in the bearing box 67, the storage box 69 and the flow valve 84 of the pneumatic sand removing mechanism 8 are all in a closed state, and the laser emitting device 63, the laser sensing device 64, the circulating feeding device 65 and the air compressor 81 are in a non-working state; the sand scraping system 5 and the disc type sand removing mechanism 7 are fixed at a certain distance from the road surface.
When the invention is operated, the invention is hung above the rail. Starting the power and control system 3, controlling the hydraulic mechanism 4, releasing the sand scraping system 5 above the rail, and enabling the rail groove at the lower end of the shell 51 of the sand scraping system 5 to be matched with the rail; the crank rocker mechanism is driven to release the disc type sand removing mechanism 7 for a proper distance, so that the cleaning beam 74 is contacted with the rail; starting the circulating feeding device 65, controlling the storage box 69 to put in the sand collecting bags 66, and aligning each station below the storage box 69 through the rotation of the circulating feeding device 65 to obtain the sand collecting bags 66; controlling a sand baffle 62 in the sand collecting system 6 to be in an open state; and controlling the motor I54, the motor II 71, the motor III 92 and the air compressor 81 to operate, and starting the operation of the sand scraping system 5, the laser emitting device 63, the laser sensing device 64, the disc type sand removing mechanism 7, the pneumatic sand removing mechanism 8 and the belt conveying system 9. The invention moves forward along the track, the sand collecting plate 52 collects the accumulated sand in a certain range outside the track, the motor I54 drives the driving wheel 55 to drive the driven wheel 56 to move through the belt 57, and the arc-shaped sand scraping plate 53 arranged on the belt 57 transports the accumulated sand in the width range of the shell 51 from one side of the driving wheel 55 to one side of the driven wheel 56 through operation. Because the motor I54 has a certain rotating speed, accumulated sand driven by the arc-shaped sand scraping plate 53 is discharged when being positioned at the sand discharging port 58 through inertia, and the accumulated sand is conveyed to the sand collecting system 6. The sand collecting bowl 61 collects the accumulated sand of the sand scraping system 5, when the accumulated sand passes through the laser emitting device 63 and the laser sensing device 64 at the discharge port, the laser sensing device is blocked to sense laser, the signal is transmitted to the motive machine and control system 3, and the motive machine and control system 3 controls the sand blocking plate 62 to be closed through a certain time delay. The accumulated sand in the time period is totally put into a sand collecting bag 66 which is positioned at a station on the circular feeding device 65 right below the sand collecting bowl 61. After the power and control system 3 closes the sand baffle 62, the automatic sealing device 67 is quickly started to seal the opening of the sand collecting bag 66. After the packaging is finished, the automatic sealing device 67 feeds back signals of the power and control system 3, the power and control system 3 controls the baffle 68 at the lower part of the bearing box 67 to be opened, and after the sand collecting bag 66 filled with sand falls into the belt transmission system 9, the baffle 68 is closed. The sand collection bag 66 filled with sand is transported to the outside of the rail by being transported by the belt 94 of the belt drive system 9. The circular feeding device 65 rotates to align the next station with the sand collecting bowl 61. The station lacking sand collection bags 66 rotates to a position below the storage bin 69 to replenish the sand collection bags 66. The next sand collecting and sealing process is carried out, and the process is circulated.
The motor II 71 rotates to drive the rotating shaft 72 to rotate, the disc 73 connected with the rotating shaft 72 moves at a high speed, and the cleaning beam 74 fixed below the disc 73 continuously rotates above the rail, so that the cleaning work of the accumulated sand above the rail is realized.
The air compressor 81 stores compressed air in a high-pressure air bottle 83 through a pressure reducing valve 82, when the compressed air reaches a certain pressure, a flow valve 84 is opened, the high-pressure air is output through an air hose 85 and is continuously sprayed above a rail, and residual sand grains are further removed.
After the sand removing work is finished, all the mechanisms reset.
Claims (1)
1. A device for clearing railway accumulated sand in an omnibearing way and packaging the accumulated sand comprises a vehicle body (1), wheels (2), a power and control system (3), a hydraulic mechanism (4), a sand scraping system (5), a sand collecting system (6), a disc type sand removing mechanism (7), a pneumatic sand removing mechanism (8) and a belt conveying system (9),
the train body (1) is positioned above a rail, is supported by wheels (2) and is connected with the train body (1) through a conventional shaft structure; hydraulic mechanisms (4) are arranged on the left side and the right side of the front end of the vehicle body (1), the hydraulic mechanisms (4) are connected with a sand scraping system (5), and the height of the sand scraping system (5) above a rail is controlled; two disc type sand removing mechanisms (7) are arranged between a front-end wheel (2) of the vehicle body (1) and the sand scraping system (5), each disc type sand removing mechanism (7) consists of a motor II (71), a rotating shaft (72), a disc (73) and a sweeping beam (74), the disc type sand removing mechanisms (7) are positioned right above the rail through a crank and rocker mechanism, and a large amount of accumulated sand above the rail is removed through continuous high-speed rotation of the sweeping beam below the disc and the rail; a sand collecting system (6) is arranged above the vehicle body (1) between the two wheels (2), the sand collecting system (6) collects, seals and packs the accumulated sand removed by the sand scraping system (5), and the packed accumulated sand is transported to the side of the rail by a belt transmission system (9) arranged below the sand collecting system; the pneumatic sand removing mechanism (8) is arranged at the rear end of the vehicle body 1, two air pipeline air nozzles of the pneumatic sand removing mechanism are respectively arranged above the rails at a certain height, high-pressure air is continuously sprayed above the rails, and residual sand grains above the rails are removed;
the sand scraping system (5) consists of a shell (51), a sand collecting plate (52), an arc-shaped sand scraping plate (53), a motor I (54), a driving wheel (55), a driven wheel (56), a belt (57) and a sand unloading port (58), wherein hydraulic mechanisms (4) are arranged on the left side and the right side of the shell (51) and are connected with the vehicle body (1) through the hydraulic mechanisms (4) and a shaft; the motor I (54) is fixed on the vehicle body (1), the sand collecting plate (52) is fixed at the lower end of the shell (51), a driving wheel (55) and a driven wheel (56) are mounted between the shells (51) through shafts, the motor I (54) is connected with the driving wheel (55), a belt (57) is arranged between the driving wheel (55) and the driven wheel (56), and the arc-shaped sand scraping plate (53) is fixed on the belt (57); a sand unloading opening (58) is arranged below the shell (51); before operation, the hydraulic mechanism (4) controls the sand scraping system (5) to adjust the height up and down, so that the bottom of the shell (51) is fit above a rail at a proper height;
the pneumatic sand removing mechanism (8) is arranged at the rear part of a rear wheel (2) of the vehicle body (1) and consists of an air compressor (81), a pressure reducing valve (82), a high-pressure air cylinder (83), a flow valve (84) and an air hose (85); the air compressor (81) is fixed above the vehicle body (1) and is connected with the inlet end of the high-pressure air cylinder (83) through a pressure reducing valve (82), and the outlet end of the high-pressure air cylinder (83) passes through a flow valve (84) and realizes air injection above the rail through the outlet of an air hose (85);
belt conveyor system (9) set up in bearing box (67) below, and driving wheel (91) of this mechanism are installed and are driven through motor III (92) on automobile body (1), stretch out the rail outside from driving wheel (93) and are connected with the steelframe of fixing on automobile body (1), are provided with belt (94), characterized by between driving wheel (91) and follow driving wheel (93):
the sand collecting system (6) is arranged below the sand scraping system (5) in the middle of the vehicle body (1), the sand collecting system (6) consists of a sand collecting bowl (61), a sand blocking plate (62), a laser emitting device (63), a laser sensing device (64), a circulating feeding device (65), a sand collecting bag (66), a bearing box (67), a baffle plate (68), a storage box (69) and an automatic sealing device (610), and the sand collecting bowl (61) is funnel-shaped, made of transparent materials and positioned below a sand unloading port (58) of the sand scraping system (5); a sand blocking plate (62) is arranged in a cylindrical discharge opening at the tail end of the sand collecting bowl (61), a laser emitting device (63) and a laser sensing device (64) are symmetrically arranged outside the sand collecting bowl, a conventional circulating feeding device (65) is arranged below the laser testing device, and a station for placing a sand collecting bag (66) is arranged on the conventional circulating feeding device; a bearing box (67) is arranged at a station right below the sand collecting bowl (61), a baffle (68) which can be opened and closed is arranged below the bearing box (67), the bearing box (67) is connected with the vehicle body (1), a storage box (69) is arranged right above the other station, and a sand collecting bag (66) is arranged in the storage box (69); an automatic sealing device (610) is arranged below the circulating feeding device (65) and above the bearing box (67), and the automatic sealing device (610) is a conventional sealing device and is controlled by a power and control system (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811232951.6A CN109338978B (en) | 2018-10-23 | 2018-10-23 | Device for comprehensively clearing railway accumulated sand and packaging accumulated sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811232951.6A CN109338978B (en) | 2018-10-23 | 2018-10-23 | Device for comprehensively clearing railway accumulated sand and packaging accumulated sand |
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| Publication Number | Publication Date |
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| CN109338978A CN109338978A (en) | 2019-02-15 |
| CN109338978B true CN109338978B (en) | 2020-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811232951.6A Active CN109338978B (en) | 2018-10-23 | 2018-10-23 | Device for comprehensively clearing railway accumulated sand and packaging accumulated sand |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112921874B (en) * | 2021-01-27 | 2023-07-07 | 中亿丰建设集团股份有限公司 | Building broken slag cleaning equipment for building |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09177056A (en) * | 1995-12-27 | 1997-07-08 | East Japan Railway Co | Guard rail clearance cleaner for grade crossing |
| CN202247782U (en) * | 2011-09-01 | 2012-05-30 | 内蒙古工业大学 | Trailer type railway sand-removing machine |
| CN102912758B (en) * | 2012-06-29 | 2016-06-22 | 中国北方车辆研究所 | A kind of track cleaning maintenance cart |
| CN205205768U (en) * | 2015-12-01 | 2016-05-04 | 安荣� | Inspection of tramway clearance in pit car |
| CN207003356U (en) * | 2017-04-27 | 2018-02-13 | 摩西·海·科斯塔 | A kind of rail cleaning device |
| CN207211056U (en) * | 2017-07-18 | 2018-04-10 | 马福聚 | A kind of railway device husky clearly |
| CN108104046A (en) * | 2018-01-16 | 2018-06-01 | 四川有色金砂选矿药剂有限公司 | Track-cleaning vehicle |
| CN108360447A (en) * | 2018-04-19 | 2018-08-03 | 钱兴 | A kind of self-propelled track device husky clearly |
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Effective date of registration: 20200723 Address after: 730000 No.318, Donggang West Road, Chengguan District, Lanzhou City, Gansu Province Patentee after: NORTHWEST INSTITUTE OF ECO-ENVIRONMENT AND RESOURCES, CAS Address before: Chengguan District of Gansu city of Lanzhou province Donggang West Road 730000 No. 320 Patentee before: Institute of environment and Engineering in cold and dry areas, Chinese Academy of Sciences |