JPH02144180A - Sieving machine for roadbed ballast - Google Patents

Abstract

PURPOSE:To efficiently sieve even roadbed ballast in every state by loading a vibrating screen, a conveyor for waste soil and a conveyor for waste ballast on a truck and providing a self-traveling device freely changed over to an actuated state and an unactuated state on the truck. CONSTITUTION:Both a conveyor 2 for waste soil and a conveyor 3 for waste ballast are freely slidingly arranged side by side to the direction orthogonal to a rail R on a truck 1 traveling on the rail R and also a vibrating screen 4 is provided to the upper part thereof in the same direction as the rail R. Furthermore a self-traveling device 7 is arranged on the truck 1 which is freely changed over to an actuated state and an unactuated state and transfers the truck 1 to the back and forth directions at a working time. A sieving machine C is constituted of a miniature and compact structure and traveled on the rail and can be easily carried to the place for repairing roadbed. Furthermore the sieving machine can be easily and quickly transferred during work and even roadbed ballast in every state is efficiently sieved thereby and beautiful ballast is always recovered.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention is used for repairing track beds, etc., and is used to screen track bed ballast scooped out by track bed scooping machines such as Yunbo and backhoes. This relates to a track bed ballast sifting machine that can improve work efficiency and reduce material costs by continuously running on the top of the machine and distributing recovered ballast that has been separated by tN into the scooped area. .

(Conventional technology) In technical fields such as track bed repair, the most important issue is to promote mechanization of repair work to improve work efficiency, reduce work man-hours, and lower repair costs. It becomes.

In order to deal with the above-mentioned problems, as shown in Fig. 1, a general-purpose earthmoving machine (road bed scooping machine) A such as a backhoe is loaded on a drive cart A and a driven cart, and the road bed is Drive trolley a is operated using the hydraulic drive source of scooping machine A, and when the work point is reached, the trackbed ballast is scooped out with roadbed scooping machine A loaded on transportation trolley B. Developed a track bed ballast exchange device, and received a patent application in 1982.
This is published as No. 303566.

However, in the above-mentioned Japanese Patent Application No. 62-303566, all the old track bed ballast scooped out by the track bed scooping machine A is carried out of the track by a track truck, etc., and new ballast of approximately the same amount is replaced. Carry it into the orbital floor,
Since the ballast is laid on the track where the trackbed ballast has been scooped out, a large amount of new ballast is required, making it difficult to shorten work time, improve work efficiency, and reduce repair costs.

On the other hand, in replacing the so-called "Hana Ballast" of the track bed, attempts have been made to sieve the track bed ballast that has been scooped out, remove dirt and sand, collect it, and reuse the ballast.

However, the moisture content of roadbed ballast fluctuates greatly depending on the weather conditions during work, and conventional sieving machines have the disadvantage that it is not possible to recover the stable sieved portion of ballast during rainy weather or during work after rainy weather.

On the other hand, if a large-sized sieving machine equipped with various auxiliary equipment is used, it is possible to efficiently sieve the trackbed ballast and to always collect clean ballast 1-.

However, large sieving machines are generally difficult to handle and lack operability, so their use is extremely limited due to the actual working time in track bed repair work, which is often carried out within a short period of time at night. The problem is that it is very limited.

(Problems to be Solved by the Invention) The present invention solves the above-mentioned problems in conventional roadbed ballast sieving machines, namely: ■ With conventional sieving machines, it is not possible to efficiently sieve roadbed ballast during work in rainy weather, etc. Not only is this impossible, but clean ballast cannot be recovered due to the increased amount of mud and other substances that adhere to it. ■Large sieving machines require time to transport to the repair area and take out after work, and are not easy to operate. It aims to solve the problem that it cannot be easily applied to the repair of commercial tracks during short hours of actual work such as at night, and has a small and compact structure that allows it to run on rails. It can be easily transported to the trackbed repair area, and it can be moved easily and quickly during work, and it can efficiently sieve trackbed ballast in any condition, always recovering clean ballast. The present invention provides a sieving machine for Shishida track bed ballast.

(Means for Solving the Problems) In the present invention, an earth removal conveyor 2 and a waste ballast conveyor 3 are installed in parallel on a cart 1 running on a rail R in a direction perpendicular to the rail R, and Above it, a vibration 1g4 is arranged in the same direction as the rail R, and furthermore, a vibration 1g4 is placed on the trolley 1.
The basic structure of the invention is that a self-propelled device 7 is provided that moves the trolley 1 in the front and rear directions during work, which can be switched freely between an active state and a non-active state.

(Function) The vibrating sieve 4 of the sieving machine C is mounted on the trolley 1 with a spring 24 interposed.
The vibration motor 13 is rotatably mounted on the bracket 25 of the vibration motor 13 to reciprocate in the longitudinal direction at a constant frequency and amplitude.

The bed ballast scooped out by the scooping machine A is supplied into the tube body 20 from the upper part of the vibrating sieve 4, and is fed into the tube body 20 in the longitudinal direction (
While descending on the tube main body 20 which reciprocates in the direction of the rail R), mud etc. that have adhered due to collisions and friction between the ballasts is peeled off and the ballasts, which are of a predetermined size or more and are cleanly cleaned, are , and is discharged from the ballast discharge bopper 19 onto the ballast tron bearing 3.

The ballast discharged onto the conveyor 3 is transferred in a direction perpendicular to the rail R, stored directly or temporarily on the side of the trackbed, and then returned to the scooped-out spot on the trackbed.

When the self-propelled device 7 of the sieving machine C is set to the operating position, the drive wheel 14 comes into contact with the rail R, and the self-propelled motor 31 rotates the self-propelled drive @14 to drive it forward and backward at low speed. As a result, the distance between the scooping machine A and the scooping machine A can be arbitrarily adjusted. Further, when the sieving machine C is towed or compressed by a transportation trolley B or the like, the self-propelled bag W7 is set to a non-operating position.

(Example) Hereinafter, the present invention will be explained in detail based on the drawings.

FIG. 2 is a side view of the sieving machine for roadbed ballast according to the present invention, and the sieving machine C is equipped with bogies 1 and 1 running on rails R.
A discharge layer conveyor 2 placed on a trolley 1 in a direction orthogonal to the rail R, a discharge ballast conveyor 3 placed adjacent to and parallel to the soil discharge conveyor 2, and above both conveyors 2 and 3. The vibration 94 placed in the longitudinal direction of the trolley 1 and the vibration ff
a waste conveyor 5 disposed above and parallel to the conveyor 4; a supply hopper 6 disposed above the starting end of the conveyor 5;
It is formed by a self-propelled device 7 and the like disposed in front of the truck 1.

In FIG. 2, 8 is a control panel for the sieving machine C, which controls the control of each of the conveyors 2, 3, 5, . vibration! Operation control of $4 and self-propelled bag W7 is performed. or.

9 is the DC power supply of the self-propelled bag @7, and 10 is the wheel of the trolley 1.

11. 12 is a lighting lamp, 13 is a vibration motor for the vibration sieve 4,
Reference numeral 14 indicates a self-propelled drive wheel of the self-propelled device 7, and reference numeral 15 indicates a stealing wheel. When it is necessary to move the sieving machine C sideways, the wheel 15 is set to the operating position and used. to move the sieving machine C sideways.

Furthermore, although not shown, each conveyor 2 of the sieving machine C
, 3.5, vibration 114, etc., is an alternating current generator (AC220V, 10K) mounted on the trolley 1 or another power supply vehicle.
VA), and the DC power supply 9 for the self-propelled device 7 is floatingly charged by the AC generator.

The bogie 1 is made up of a bogie frame 16, wheels 10, a braking device (not shown), etc., and is pulled (or pressed) by a transportation bogie B etc. loaded with a track bed scooping machine A, and moves on the rail R. It runs and is transported to the work site. Also, sieving machine C
When the rail R is operated, the self-propelled device 7 moves the rail R as described later.
The track bed scooping machine A is moved over the top at low speed, and the distance between it and the track bed scooping machine A is adjusted.

Both conveyors 2 and 3 are placed on the trolley 1 so as to be slidable in a direction perpendicular to the rail R, thereby adjusting the discharge position of the sifted soil and ballast, and
It is also possible to change the discharge direction by arbitrarily changing the rotation direction of the conveyors 2 and 3.

The vibrating sieve 4 has a frame body 1 as shown in FIGS. 3 to 6.
7, and a hopper 18 for discharging soil installed in the frame body 17.
In addition, a sieve body 20 consisting of a hopper 19 for wandering ballast and a plurality of rod bodies 20' arranged in parallel above the hopper 18 for soil removal is installed on both sides of the upper part of the frame body 17.
3, 13, and mounting bases 2 provided at both ends of the upper part of the frame body 17.
2.22 and the mounting base 2 fixed at the lower upper part of the frame body 17
It is composed of 3, 23, etc.

The vibration ts4 is held in such a way that it can vibrate freely by placing the mounting base 22.23 on a bracket 25 fixed to the frame body 17 with a spring 24 interposed therebetween. As the balancer inside the vibration motor 13 rotates, forced vibration is applied to the frame body 17 in the direction of arrow A, and the frame body 17 vibrates on the bracket 25 via the spring 24.

In this embodiment, the sieve body 20 is formed by arranging 18 6fflφ steel circles (about 750 mm in length) in parallel at a pitch of 32, and the vibration motor 1
3 and 13, the frame body 17 is given an imaging motion of 3400 to 3500 cycles/11 inches and an amplitude of 3I in the direction of arrow A.

Further, in this embodiment, the vibrating sieve is of a type using vibrating motors 13, 13, but it goes without saying that the vibrating device and the sieve body may be of any type.

The waste conveyor 5 transports the trackbed ballast scooped up by the trackbed excavator A to the upper side of the vibration lf4 via the supply hopper 6, and the waste conveyor 5 is tilted in order to improve the workability of the trackbed excavation fiA. The supply hopper 6 is arranged in a shape such that the position of the supply hopper 6 is lowered as much as possible.

The self-propelled device 7 is provided at the front part of the truck 1 as shown in FIGS. 7 and 8, and has self-propelled drive wheels 14.1 at both ends.
4, a support rod 27° 27 whose base end is rotatably supported on the truck l and supports both ends of the self-propelled axle 26 in a freely lifting manner; Above 26
A shaft 28 that is supported and fixed so as to be movable downward; and an operating handle 29 that is screwed onto the upper end of the shaft 28 and that moves the self-propelled axle 26 upward and downward via the shaft 28.
and a mounting base 30 that rotatably supports the operating handle 29.
and a self-propelled motor 3 that rotationally drives the self-propelled drive $$14.
1 is inserted between the bogie frame 32 and the shaft 28 to transfer the load of the bogie frame 32 to the self-propelled drive wheel 1 via the shaft 28.
It is composed of a spring 33 and the like that apply a load to 4.

In FIGS. 7 and 8, 34 is a transmission chain, 35 is a long hole 37 drilled in the mounting base 30, and 38 is a reinforcing member. Moreover, in this example,
A urethane rubber lining is applied to the tread surface of the self-propelled drive wheel 14 to increase the frictional force with the rail R, and a direct current motor (DC: 12V) is used as the self-propelled drive motor 31.

The self-propelled bag W7 is mainly used to gradually move the sieving machine C in a desired direction during work to screen the bed ballast. That is, by operating the handle 29, the shaft 2
By lowering the tip of 8 and bringing the self-propelled drive wheel 14 into contact with the rail R, the bogie 1 is moved through the spring 24.
load onto the self-propelled drive wheels 14. Since the self-propelled drive wheels 14 have urethane rubber lining on their treads, the frictional force between them and the rail R is high, and by driving the self-propelled motor 31, the bogie 1 is moved forward and backward at low speed. Move backwards.

Thereby, it becomes possible to adjust the interval with the excavator A as appropriate.

In this embodiment, the self-propelled device 7 is switched from the operating position to the non-operating position (or from the non-operating position to the operating position) using the shaft 28 and the handle 29, but instead of the shaft 28 and the handle 29, a hydraulic device etc. Of course, you may also use .

Next, roadbed repair according to the present invention will be explained.

First, a base is set up near the railroad crossing closest to the point where trackbed ballast or so-called "Hana ballast" needs to be replaced, and the trackbed excavator A, transport trolley B, sieving machine C, supplementary ballast, etc. are brought in.

Next, after the track is closed at night or the like, the sieving machine C is carried onto the rail R at a railroad crossing or the like, and the trackbed exchanger A is loaded onto the transport trolley B.

In addition, the sieve laC is connected to the front of the transportation truck B via a connecting rod (not shown), and the self-propelled device 7 is turned off by operating the handle 29 of the self-propelled device 7 of the sieve machine C. Operation (Set the self-propelled drive @14 to the raised position.

When the loading of the bed excavator A and the connection of the sieving machine C are completed, the transport trolley B is driven using the drive source of the bed excavator A and transported to the work site.

When the transport trolley B arrives at the work site, the braking device and reaction force receiver are actuated to fix the transport trolley B to the rail R and disconnect the transport trolley B from the sieving machine C.

Thereafter, operate the handle 29 of the self-propelled device 7 of the sieving machine C to set it to the operating position W (the self-propelled drive wheel 14 is in contact with the rail R), and the self-propelled device 7 operates the sieve machine C. Move to a convenient location for work.

Furthermore, the lateral positions of the discharge conveyor 2 and the discharge ballast conveyor 3 are adjusted to determine the discharge position of the ballast and the like.

In this state, the shovel and sifting machine C of the trackbed excavator A are operated, and the consolidated roadbed ballast from the lower part of the sleepers and the "hana ballast" from the side parts of the sleepers are scooped out one by one by pulling the shovel toward you, and then moved forward. It is discharged onto the supply hopper 6 of the sieving machine C which is on standby. The trackbed ballast discharged onto the supply hopper 6 is vibrated by the waste conveyor 5.
4 and are sequentially discharged onto the cylinder body 20.

The discharged track bed ballast is transferred to each rod body of the tube body 20.
While descending between 20' and 20', the sieved material is subjected to action, and dirt and fine ballast pieces are sent from the soil removal hopper 18, and ballast of a certain size or more is sent from the waste ballast hopper 19 onto the conveyor 2 and conveyor 3, respectively. is discharged to.

According to the actual operation test of the vibrating sieve 4, it is possible to separate the ballast from the sediment, not only in the case of scooped trackbed ballast in a dry state, but also in the case of trackbed ballast with a high moisture content after rainy weather. This can be done extremely accurately, and the ballast that comes out to the ballast discharge hopper 19 has a very high quality, as mud and other substances that have adhered to the outer surface of the ballast during the sieving process are almost completely removed by collisions and friction between the ballasts due to vibrations. Sieving machine C with zero sieves discharged as clean ballast
According to the method, it has been demonstrated that it is possible to sieve track bed ballast of about 0.4 rn'/m at a speed of approximately Loom/n.

The sieved ballast discharged from the wandering ballast conveyor 3 is immediately returned to the trackbed trace from which it was scooped (or after being temporarily placed on the side of the trackbed).

When a certain distance of the track bed ballast has been scooped out, the reaction force receiver releases the device 17 and the braking device, and moves the transport trolley B back a certain distance, and also moves the sieving machine C back a certain distance, and then performs the steps described above. Scoop out the track bed ballast and sieve it using the same method as above.

The ballast recovered through the sieving process and new ballast are sequentially filled into the trackbed remains that have been scooped out.Furthermore, after filling the new ballast, the rails and sleepers are tightened, the ballast is pounded, and the rail width is inspected. Track maintenance such as measurements will be carried out.

(Effects of the Invention) In the present invention, the vibration gI4 is applied to the truck 1 in the same direction as the rail, and the discharge conveyor 2 and the wandering ballast conveyor 3
are loaded in a direction perpendicular to the rail.

Both conveyors 2 and 3 are disposed so as to be slidable in the left and right directions, and one truck 1 is provided with a self-propelled device 7 that can be switched between an operating state and a non-operating state.

As a result, the sieving machine C has a relatively simple structure and is extremely compact, and is easy to handle, and can easily run at high speed on the rail R by being pulled or pushed by a transport vehicle B or the like. Moreover, at the work site, by operating the self-propelled device 7 and adjusting the distance between the sieving machine C and the digging machine A, the digging t! The work of scooping out track bed ballast by &A and discharging the scooped ballast to sieve machine C becomes extremely easy, and the workability of excavator A can be significantly improved.

Furthermore, in the present invention, the soil removal conveyor 2 and the ballast removal conveyor 3 are each slidably disposed perpendicular to the rail R, so that the screened ballast can be discharged to any position on the side of the track bed. This makes it extremely easy to refill the ballast into the trackbed where it was scooped out.

Further, in the present invention, the scooped trackbed ballast is screened using a vibrating sieve 4 configured to vibrate the tube body 20 formed by juxtaposing rod bodies 20' in the front-back direction at high speed. Therefore, even if the ballast has a high moisture content, the sifted material will be completely removed by friction and collision between the ballasts, resulting in dirt and other substances that adhered to the outer surface of the ballast during treatment, resulting in an extremely clean ballast. Ballast can be recovered.

Furthermore, since the self-propelled device 7 is formed of a self-propelled drive @ 14 and its drive motor 31, and is configured to hold the self-propelled drive wheel 14 so as to be in contact with and separate from the rail R, it is possible to By setting the running device 7 to the non-operating position, the resistance applied to the bogie 1 becomes completely zero, and high-speed running on the rail R becomes extremely easy.

As described above, by using the present invention in combination with a trackbed excavator A such as a backhoe, scooping of trackbed ballast and sieving of trackbed ballast can be carried out with extremely high efficiency, and the sieved ballast can be removed. It has an excellent practical effect in that reuse can significantly reduce track bed repair costs.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a transport trolley B and a trackbed excavator A. FIG. 2 is a side view of the sieving machine C. 3 is a plan view of the vibrating sieve, FIG. 4 is a side view of the vibrating sieve, FIG. 5 is a cross-sectional view of FIG. 3 as viewed from E, and FIG. 6 is a cross-sectional view of FIG. FIG. 7 is a front view of the self-propelled device, and FIG. 8 is a side view of the self-propelled device. A Trackbed excavator B Transport trolley C Screening machine R Rail 1 Dolly 2 Soil removal conveyor 3 Discharge ballast conveyor 4 Vibrating sieve waist conveyor supply hopper Self-propelled device Vibration motor Self-propelled drive wheel frame main body Pipe main body Self-propelled Axle shaft operating handle Self-propelled motor patented by Sujin West Japan Railway Company Daitetsu Kogyo Co., Ltd. Figure 3 Figure 5

Claims (4)

[Claims] (1) On a trolley (1) running on a rail (R), an earth removal conveyor (2) and a ballast removal conveyor (3) are installed in parallel in a sliding manner in a direction perpendicular to the rail (R). At the same time, a vibrating sieve (4) is placed above it in the same direction as the rail (R).
), and the truck (1) is further provided with a self-propelled device (7) for moving the truck (1) forward and backward during work, which can be freely switched between an activated state and a non-activated state. Ballast sieving machine. (2) The track bed ballast sieving machine according to claim 1, further comprising an est conveyor (5) above the vibrating sieve (4) and parallel to the vibrating sieve to transfer the scooped track bed ballast from below to above. (3) A sieve body (20) consisting of a plurality of rod bodies (20') arranged in parallel, a frame body (17) that holds the sieve body (20), and a frame body (17) that is fixed to the frame body (17). A sieving machine for bed ballast according to claim 1, further comprising a vibrating sieve (4) comprising a vibrating motor (13) and a vibrating sieve (4). (4) A self-propelled axle (26) supported on the bogie (1) so as to be movable up and down, a self-propelled drive wheel (14) attached to the self-propelled axle (26), and the self-propelled drive wheel (14) A self-propelled motor (31) that rotationally drives a drive wheel (14), and a self-propelled axle (26).
) up and down, and move the self-propelled drive wheel (14) to the rail (R
2. The trackbed ballast sieving machine according to claim 1, further comprising a self-propelled device (7) comprising a shaft (28) that is brought into contact with the rail (R) or held at a position separated from the rail (R).