CN202247782U - Trailer type railway sand-removing machine - Google Patents

Abstract

A trailer-type railway sand removal machine, comprising a lifting hydraulic cylinder (1), a sand collection and scraping device (2), a two-way sand blowing mechanism (3), a sand blowing conveying mechanism (4), a hydraulic system (5) and a car body (6). When in use, the locomotive is towed to the working site, the sand-collecting and scraping device (2) is controlled by the lifting hydraulic cylinder (1) and lowered to the working position, and the sand-raising conveying mechanism (4), the sand-raising belt (33), and the sand-scraping mechanism ( 22) Sequential start. The present invention moves forward with the traction of the car, and the sand collection box (21) pushes and accumulates the accumulated sand in the middle and both sides of the rail to a certain height; The scraping is sent to the funnel (216), and falls on the sand blowing belt (33), and the accumulated sand is blown out to the left or right side of the rail by forward rotation or reverse rotation of the sand blowing mechanism hydraulic motor (37). The invention has the advantages of simple structure, high degree of automation, simple operation and easy popularization.

Description

A trailer type railway desanding machine

technical field

The utility model belongs to railway road maintenance machinery, which is used for emergency dredging of buried railways in windy and sandy areas. The utility model is trailer-type and does not need to be driven independently. clear.

Background technique

At present, the emergency desanding methods of my country's main railway lines mainly use tools such as loaders, bulldozers and artificial shovels to clean up the accumulated sand. The environment is harsh and the work efficiency is low. Efficient special railway desanding machinery is still blank in my country. In recent years, some small special equipment for sand removal have also begun to appear. At an international railway equipment exhibition held in Beijing, several new types of equipment with snow and sand removal and blowing functions for railway turnouts were unveiled, but this series of equipment is only suitable for fixed-point work on turnouts. Environment, not suitable for long route work. A railway sand pushing device proposed by Qinghai University is invented. It can be connected and installed with the front of the front shell of the assembled rail vehicle through a fixed frame. It consists of a sand pushing wedge, a left sand scraper, and a right sand scraper. The left sand sweeping board, right sand sweeping board, fixed frame, and 2-4 lifting hooks are composed. The disadvantage is that it is difficult to handle automatically when encountering a turnout, and the sand pushing distance and sand removal efficiency will be limited to a certain extent. Therefore, it is necessary to develop efficient, automatic control, and easy-to-use railway desanding machinery to relieve people from the heavy physical labor of clearing railway buried sand, improve sand removal efficiency, and solve the emergency dredging of railway lines in sand-infested areas. The railway desanding machine proposed in another document "Research on a New Type of Railway Desanding Machine" by the applicant of this patent is a completely independent engineering vehicle that needs to be driven by itself. The desanding function requires shoveling, The three-level device for sand transmission and sand blowing. The sand blowing device needs a hydraulic steering mechanism to realize left and right swing. The whole vehicle needs to be driven by a diesel engine, and a special cab and driving power transmission system are required. The disadvantage is that the maintenance of the sand blowing steering mechanism is difficult, and the volume of the whole vehicle Big and expensive.

Utility model content

The main purpose of this utility model is to provide a special trailer-type rail sand removal machine, which can be hooked in front of the locomotive, driven by locomotive traction and automatic control, using DC power from the locomotive, and using DC motors to drive gear pumps and motors. The hydraulic cylinder then drives the operating device to clear the accumulated sand buried on the rail surface to a certain range outside the rail. On the one hand, it can solve the heavy manual labor for people to clean up the buried sand of railways. On the other hand, it can greatly improve the efficiency of sand removal, is convenient to use and easy to promote, and can solve the problem of emergency dredging of railway lines in sand-infested areas.

The trailer-type railway desanding machine of the utility model should realize functions such as collecting and scraping the accumulated sand of the railway, optional sand blowing on the left and right sides of the track, expanding the sand blowing distance, and automatic control. The main structure includes the sand collection and scraping device and its lifting hydraulic cylinder, two-way sand blowing mechanism, left sand blowing trough and right sand blowing trough and their supporting hydraulic cylinders, hydraulic system that is easy to realize automatic control, and trailer-type car body; At the same time, use the coupler at the rear of the car body to connect with the locomotive, and the locomotive will drive to the working place; the sand-collecting and scraping device is controlled by the lifting hydraulic cylinder to descend to the working position and keep the position stable. The mechanism starts in sequence, the trailer-type railway sand removal machine moves forward with the traction of the locomotive, and the sand collection box pushes the accumulated sand in the middle and both sides of the rail to a certain height; at the same time, the hydraulic motor drives the active wheel shaft to rotate, connected The scraper on the chain scrapes the accumulated sand accumulated to a certain height in front of the shovel tip to the funnel of the sand collection box. Rotate or reverse, blow the accumulated sand on the sand blowing belt to the left or right side of the rail; to ensure the sand blowing distance, the piston of the hydraulic cylinder is supported by the conveying groove on the left or right to elongate, supporting the corresponding The delivery trough is complete. If the accumulated sand is lifted to the left by the sand blowing belt, the piston of the hydraulic cylinder of the conveying trough on the left will stretch out to prop up the conveying trough on the left and expand the distance for the sand to be lifted to the left, and vice versa; after the work is completed, scrape The sand mechanism, the sand blowing belt, and the sand blowing trough stop sequentially, the sand collection box is lifted to a suitable position, pulled by the locomotive to the storage place, and the coupler is disengaged.

Beneficial effects of the utility model: first, the structure of the trailer-type railway sand removal machine is simple, and by designing some related structures matching the rails, the sand scraping machine is innovatively transformed on the basis of the belt conveyor technology and the scraper conveying principle. The mechanism and hydraulic technology are integrated into one, and the forward and reverse rotation of the motor of the sand conveying mechanism is skillfully used to selectively lift the accumulated sand to the left or right side of the railway according to the road conditions and wind direction, and realize automatic control, which is easy to operate , and can guarantee the safety and reliability of use. The coupler at the rear end of the frame can be easily hooked to the locomotive, and then the locomotive can be pulled to carry out the sand removal work, without a special cab and driving power for autonomous driving; the shovel point at the front end of the sand collection box matches the shape of the rail to ensure that the rail surface is cleared Sand accumulation at a certain depth above and below the rail surface; by controlling the forward rotation and reverse rotation of the conveyor belt, the accumulated sand transported by the sand scraping mechanism can be selectively thrown to a certain range on the left or right side of the rail, Two-way sand blowing can be realized without a steering mechanism; through the lifting of the hydraulic cylinder of the sand blowing trough, the distance between the sand blown out of the sand blowing belt and the track can be effectively increased.

The utility model greatly improves the efficiency of desanding, fills the blank of my country's automatic desanding machinery for railways, and has the advantages of simple structure, convenient use, high degree of automation, simple and convenient operation, and easy popularization.

Description of drawings

Fig. 1 is a schematic structural diagram of the front view of the trailer-type railway desanding machine of the present invention.

FIG. 2 is a schematic cross-sectional structure diagram of the sand collecting and scraping mechanism 2 .

FIG. 3 is a schematic diagram of the three-dimensional structure of the sand collecting box 21 .

FIG. 4 is a front structural schematic view of the vehicle body 6 .

FIG. 5 is a schematic top view of the sand scraping mechanism 22 .

FIG. 6 is a schematic structural diagram of the tensioning mechanism 230 .

FIG. 7 is a schematic top view of the two-way sand blowing mechanism 3 .

Fig. 8 is a front structural schematic view of the sand blowing conveying mechanism 4 when the left conveying trough 41 and the left supporting hydraulic cylinder 42 are in working state and the right conveying trough 44 and the right supporting hydraulic cylinder 43 are in non-working state.

FIG. 9 is a schematic view of the right view of the left conveying trough 41 .

FIG. 10 is a schematic structural diagram of a bottom view of the left conveying trough 41 .

In each drawing: 1. Lifting hydraulic cylinder; 2. Sand collection and scraping device; 3. Two-way sand blowing mechanism; 4. Sand blowing conveying mechanism; 5. Hydraulic system; 6. Car body; 21. Sand collection box; 22 , sand scraping mechanism; 31, driven roller bearing and bearing seat; 32, driven roller; 33, blowing sand belt; 34, driving roller bearing and bearing seat; 35, driving roller; 36, coupling; 37, lifting Sand mechanism hydraulic motor; 41, left conveying trough; 42, left supporting hydraulic cylinder; 43 right supporting hydraulic cylinder; 44, right conveying trough; 61, connection structure between car body and lifting hydraulic cylinder; The connection structure of the groove; 63, the connection structure between the car body and the sand collection box; 64, the coupler; 65, the wheel; 66, the axle; 211, the box side plate; 212, the connection between the sand collection box and the car body Structure; 213, shovel tip; 214, the connection structure between the sand collection box and the lifting hydraulic cylinder; 215, the track groove; 216, the funnel; 220, the driven sprocket shaft and its components; 221, the chain drive drive shaft and its components; 222. The hydraulic motor of the sand scraping mechanism; 223. The support; 224. The coupling connected with the driving shaft of the belt drive; 225. The driving shaft of the belt drive and its components; 226. The belt; 227. The driven pulley transmission part; 228, chain; 229, scraper; 230 tension mechanism; 231, connection structure with box side plate; 232, tension wheel; 233, tension connecting rod; 234 spring; 411, tank body; 412, and car body connection structure; 413, the connection structure with the left support hydraulic cylinder.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in detail:

Referring to accompanying drawings 1-10, the main structure of the utility model trailer-type railway desanding machine includes a lifting hydraulic cylinder 1, a sand-collecting and scraping device 2, a two-way sand blowing mechanism 3, a sand blowing conveying mechanism 4, a hydraulic system 5 and a car body 6. Wheel 65 on the car body 6 and axle 66 select the model that matches with railroad track for use, guarantee the safety on the road; It is pulled by the locomotive and driven to the working place. After the work is finished, it can be disengaged without affecting the normal operation of the locomotive, and there is no need to equip a special locomotive. The front sand collection and scraping device 2 is hinged with the connection structure 63 between the sand collection box and the car body through the connection structure 212 on the sand collection box and the sand collection box, and the connection structure 214 between the sand collection box and the lifting hydraulic cylinder is the same as the lifting hydraulic pressure. One end of the cylinder 1 is connected, and the other end of the lifting hydraulic cylinder 1 is connected with the connection structure 61 between the vehicle body and the lifting hydraulic cylinder on the vehicle body 6 . The welding shovel tip 213 of the sand collection box 21 matches the shape of the rail through the track groove 215, so that it can be lowered below the upper surface of the rail, and ensure that it can be removed to a certain depth on the upper surface of the rail and the inside and outside of the rail surface. sand. The lifting hydraulic cylinder 1 can control the lifting of the sand collecting and scraping device 2 by controlling the hydraulic oil. When working, it can be lowered to a suitable height and kept stable. When it is towed and walked, it can be lifted to a balance position. The trailer-type railway sand removal machine moves forward with the traction of the locomotive. The sand collecting box 21 pushes and collects the accumulated sand in the middle and both sides of the rail to a certain height. The funnel 216 outside the sand collection box body 21 falls on the sand blowing belt 33 of the sand blowing conveyor mechanism 3 .

The sand scraping mechanism 22 works in the following way: the hydraulic motor 222 of the sand scraping mechanism is fixed on the sand collection box 21 through the support 223, and the drive shaft and its components are driven with the belt through the coupling 224 connected with the drive shaft of the belt drive 225 connection, drive belt 226 and driven pulley transmission part 227 to rotate, thereby drive chain drive driving shaft and assembly 221 thereof to rotate, and then drive two chains 228 and many scrapers 229 and driven sprocket shaft connected on the chain 228 And its assembly 220 moves to realize the action of scraping sand. The two ends of chain drive drive shaft and assembly 221 thereof and driven sprocket shaft and assembly 220 thereof are all fixed on the casing side plate 211 of sand collecting casing 21. Tensioning of the chain 228 is effected by a tensioning mechanism 230 . The tensioning mechanism 230 includes: a connecting structure 231 with the side plate of the box body, a tensioning wheel 232 , a tensioning link 233 , and a spring 234 .

The sand blowing belt 33 is a patterned belt to ensure that the accumulated sand will not fall during the conveying process; the driven roller 32 is fixedly installed on the car body 6 through the driven roller bearing and the bearing seat 31; The coupling 36 of the mechanism is connected with the hydraulic motor 37 of the sand blowing mechanism, and is fixed on the car body 6 by the driving roller bearing and the bearing seat 34 . In order to expand the distance from accumulated sand to both sides of the track, a sand blowing conveying mechanism 4 is installed on the car body 6 below the two-way sand blowing mechanism 3. The sand blowing conveying mechanism 4 includes a left conveying trough 41 and a right conveying trough 44. The bottom surfaces of the delivery trough 41 and the right delivery trough 44 are respectively connected with the left support hydraulic cylinder 42 and the right support hydraulic cylinder 43 . Because the structure of the left delivery trough 41 is the same as that of the right delivery trough 44, the structure of the left delivery trough 41 is used as an example to illustrate its structure. The left delivery trough 41 is supported by the tank body 411, the connection structure 412 with the vehicle body and the The connection structure 413 of the hydraulic cylinder is composed, and the connection structure 412 with the vehicle body is connected with the connection structure 62 on the vehicle body 6 with the delivery tank. One end of the left side support hydraulic cylinder 42 and the right side support hydraulic cylinder 43 is connected to the car body 6 respectively. During work, the left side support hydraulic cylinder 42 or the right side support hydraulic cylinder 43 elongate to prop up the left delivery trough 41 or 43 respectively. The right conveying chute 44 realizes the purpose of expanding the distance of blowing sand.

Claims (8)

1. A trailer-type railway desanding machine, characterized in that it includes a lifting hydraulic cylinder (1), a sand-collecting and scraping device (2), a two-way sand blowing mechanism (3), a sand blowing conveying mechanism (4), a hydraulic system (5) and the car body (6); the sand-collecting and scraping device (2) is hinged with the connection structure (63) of the car body and the sand-collecting box through the connection structure (212) on the sand-collecting box body and the car body, The connection structure (214) between the sand collection box and the lifting hydraulic cylinder is connected with one end of the lifting hydraulic cylinder (1), and the other end of the lifting hydraulic cylinder (1) is connected to the car body on the car body (6) and the lifting hydraulic cylinder The structure (61) is connected; the lifting hydraulic cylinder (1) controls the hydraulic oil to lift the sand collecting and scraping device (2) to a suitable height; the sand collecting box (21) pushes and collects the accumulated sand in the middle and both sides of the rail to At a certain height, the sand-scraping mechanism (22) is scraped upwards along the sand-collecting box (21) to the funnel (216), and then falls to the sand blowing belt (33) of the two-way sand blowing mechanism (3); the two-way sand blowing mechanism (3) The driven roller (32) is fixedly installed on the car body (6) through the driven roller bearing and the bearing seat (31), and one end of the driving roller (35) passes through the coupling (36) of the two-way sand blowing mechanism. It is connected with the hydraulic motor (37) of the sand blowing mechanism, and fixed on the car body (6) through the active roller bearing and the bearing seat (34); the sand blowing conveyor is installed on the car body (6) below the two-way sand blowing mechanism (3) Mechanism (4), the bottom surface of the left conveying trough (41) and the right conveying trough (44) of the blowing sand conveying mechanism (4) are respectively connected with the left supporting hydraulic cylinder (42) and the right supporting hydraulic cylinder (43) Connect; During work, the left support hydraulic cylinder (42) or the right support hydraulic cylinder (43) elongate, respectively prop up the left conveying trough (41) or the right conveying trough (44), make the blowing sand distance expand. 2. The trailer-type railway desanding machine according to claim 1, characterized in that the wheels (65) and axles (66) on the car body (6) are selected to match the models of the rails. 3. The trailer-type railway sand removal machine according to claim 1 or 2, characterized in that the shovel tip (213) on the sand collection box (21) matches the shape of the rail through the track groove (215). 4. The trailer-type railway desanding machine according to any one of claims 1 to 3, characterized in that the coupler (64) at the rear of the car body (6) is hooked to the locomotive, and it moves along with the locomotive during work. After the work is over, disengage from the locomotive. 5. The trailer-type railway desanding machine according to any one of claims 1 to 4, characterized in that the sand blowing belt (33) is a patterned belt. 6. The trailer-type railway desanding machine according to any one of claims 1 to 5, characterized in that the hydraulic motor (222) of the sand scraping mechanism (22) is fixed on the set by the support (223). On the sand box body (21), it is connected with the belt drive drive shaft and its components (225) through the coupling (224) that is connected with the belt drive drive shaft, and the belt (226) and the driven pulley transmission part (227) are driven. ) to rotate, thereby driving the chain transmission driving shaft and its assembly (221) to rotate, and then driving the two chains (228), the scraper (229) connected to the chain (228), and the driven sprocket shaft and its assembly (220) to move , Realize the action of scraping sand; The two ends of chain drive drive shaft and assembly (221) and driven sprocket shaft and assembly (220) thereof are all fixed on the casing side plate (211) of sand collection box (21). 7. The trailer-type railway sand removal machine according to claim 6, characterized in that the tensioning of the chain (228) is realized by a tensioning mechanism (230). 8. The trailer-type railway desanding machine according to claim 7, characterized in that the structure of the tensioning mechanism (230) includes: a connection structure (231) with the side plate of the box body, a tensioning wheel (232), a tensioning Tighten connecting rod (233) and spring (234).

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