DD159186A1 - DEVICE FOR INTRODUCING KIESSAND TO THE CONSTRUCTION OF A RAILROAD - Google Patents

Abstract

The invention relates to a device for introducing gravel sand as an insulating layer on the substructure of a track to improve and stabilize cohesive or loamy substructure materials. It is the object of the invention to reduce the hitherto required high cost and time expenses of the introduction of gravel sand as an insulating layer between the track ballast and a substructure consisting of cohesive material. The task is a Vorrichtg. to create, m. d. in cooperation with a ballast bed cleaning machine, the introduction of the deposited gravel sand can be done without an additional operation simultaneously with the single cleaning of the track ballast. According to the invention, this is achieved by assigning the ballast bed cleaning machine in the working direction in front of the ballast pick-up member a rotating roller provided on the circumference with apron sheets and rubber belts and a chute which points over the ballast receiving point to the chute bed of the ballast bed between the ballast receiving point and the ballast return point ,

Description

Device for introducing gravel sand on the substructure of a railway track

Field of application of the invention:.

The invention relates to a device for introducing gravel «sand as an insulating layer on den'Unterbau a track for the improvement and stabilization of cohesive or loamy" building materials _0th

Characteristic of the known technical solutions:

It is known that for the purpose of improving and stabilizing the load-bearing capacity of the substructure consisting of cohesive material, crowns are insulated from gravel with a thin layer of gravel sand in order to prevent the cohesive material from rising into the ballast and gravel The application of gravel sand is generally carried out with known ballast bed refiners with an additional second operation, in which the sand is first deposited on the ballast bed and the sand «gravel« deposited after an already preceding cleaning process. Mixture taken from the ballast bed cleaning machine * Gravel and sand with the screening device typical for this type of cleaning machine *

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First, the sand is deposited on the ballastless ground plane, leveled and compacted, and then the ballast is deposited on the sand layer and compacted in a known manner.

Except for the typical machine working and transport elements of the used ballast bed cleaning machine are for this. Type of introduction of the gravel sand additionally ein.gesondertes conveyor belt or on the existing a two bulk materials separating center web and Abstreiforgane and profiling and compacting devices to arrange, »The most significant disadvantage is that the introduction of the gravel sand a Re i-. In addition, prior to depositing the gravel sand, the pre-cleaned gravel must be precompressed to such an extent that the track is provisionally passable by the construction machinery,

Object of the invention:. ,

It is the object of the invention to reduce the hitherto required high cost and ZeitaufwSndungen the introduction of gravel sand on the foundation of tracks as an insulating layer between the ballast and a cohesive or loamy material existing substructure.

Explanation of the essence of the invention:

The invention has for its object to provide a device with which, in cooperation with a ballast bed cleaning machine, the introduction of the deposited gravel sand can be done without an additional operation simultaneously with a one-time cleaning of the track ballast «

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According to the invention, this is achieved by providing the ballast bed cleaning machine in the working direction in front of the ballast picking element a rotating element provided with scrapers and rubber aprons and a gap of the ballast bed formed between the ballast pick-up point and the ballast return point over the ballast pick-up point pointing chute is assigned,. V

With the invention, the already stored on the unpurified track gravel is in a simple V / else make contact with the conveying member is continuously in front of the ballast pick-up location or _a guided through the chute over the ballast receiving member of the cleaning machine of time specifically to throw in the gap of the Schotterbet "th" with the appropriate discharge direction of the chute is at a constant speed of the roller ensures a constant throw "The introduced gravel sand is advisable to plan and compact with the known means before the return .The cleaned ballast takes place *

The invention substantially simplifies and reduces the effort required to date for the introduction of the gravel sand. On the one hand, time is saved and, in terms of costs, a complete cleaning process, which in addition also reduces the track closure necessary for such a track reconditioning. © On the other hand, the expense of retrofitting the ballast bed cleaning machine can be reduced by eliminating the need to allocate an additional conveyor belt or altering the existing conveyor belt for the separate return of cleaned ballast and gravel sand the unavoidable loss of a small part of the gravel sand associated with the device according to the invention is to be considered insignificant in view of the considerable advantages,

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Embodiment:

The invention will be explained with reference to an embodiment »show it:

Fig. 1 is a schematic side view of the ballast and - • recirculation of a sheet terbettreinigungsmas chine with. on the machine frame additionally arranged conveying element

Figo 2 is an enlarged view of the conveying element with the downstream chute

Fig. 3 shows a view of the conveyor element in the track longitudinal direction.

An.on the track with rails 1, sleepers 2, ballast bed and the base 4 movable ballast bed cleaning machine whose working elements are brought to clean the ballast bed 3 in working position »This is a ballast pickup 6, usually in the form of a clearing chain, under the track rust out« performed <> The recorded gravel is cleaned on screens not shown in the figures or »separated from impurities and abrasion and returned to the ballast bed 3 with a conveyor belt 7 by the track grid as cleaned ballast 3 a in the direction indicated by an arrow working direction in front of the ballast receiving member 6 is an additional conveyor element 10 is arranged under the machine frame 8 to trusses 9, which consists of a e.ine transverse to the machine longitudinal axis rotating roller 11 and arranged on the circumference of the scrapers 12 and rubber aprons 13 consists »The width of the scrapers 12 and the rubber Aprons 13 corresponds approximately to the upper width of the ballast bed 3. The rubber aprons 13 are disengaged in accordance with the upwardly projecting profile of the rails 1, as shown in FIG. In the working direction behind the conveyor element 10 is on the machine frame 8 at other trusses 14 a across the width of the Schotterbettea 3 reaching chute 15 with a front and

a rear opening is arranged, wherein the rear opening obliquely downwards on the. Ausgeräumte gap of the ballast bed *

It can be seen from FIG. 1 that the picking up of the ballast bed 3, including an upper thin boundary layer of the material of the substructure 4, takes place at the same time as the picking up of the substrate. At the same time, with the rotating conveying element 10, the previously cleared ballast bed has already been received expediently placed between the rails gravel sand 16 introduced by with progressing work movement of Schotterbet treinigungsmas chine 5 of the gravel sanding 16 detected with the rotating scrapers 12 and their rubber aprons 13 and thrown through the chute 15 through the newly manufactured surface of the substructure 4 «The chute , 15 is set so that the gravel sand 16 in the gap of the ballast bed 3 before the return of the cleaned ballast 3 a wirde Expediently also before the return in a known manner, a grading plow 17 and a compressor 18 em machine frame 5 for producing a flat and compressed insulating layer 19.

Claims (1)

- ^ 230352 2 Claim for invention · Apparatus for introducing gravel sand as an insulating layer on the substructure of a track to improve and stabilize cohesive or loamy substructure materials in cooperation with a ballast bed cleaning machine, characterized in that the ballast bed cleaning machine (5) in the working direction in front of the ballast receiving member (.6) from a on the periphery with Scraper plates (12) and rubber aprons (13) provided rotating Y / alze (11, existing conveyor element (10) and one over the gravel receiving point on the gap between the gravel receiving point resulting gap of the ballast bed (3) facing chute is assigned « See 1 SeWe Drawings