JPH07145603A - Concrete injection device of sleeper spacing - Google Patents

Abstract

PURPOSE: To improve workability by connecting a finishing machine for injecting concrete and a pump for supplying concrete by a conduit having a fixed length. CONSTITUTION: A concrete finishing machine 4 with travelling cars 26, 28 is disposed onto the edge lane 2 of a foundation HGT while a lattice body 10 comprising ties 8 and rails 12 is laid on a concrete board TRG. A concrete pump 14 is disposed at the rear of the finishing machine 4, and both the machine 4 and the pump 14 are connected by a conduit supporter 18 supporting a pump conduit 16. The travelling cars 26, 28 are made to travel, tie spacings are supplied with concrete flowing into a concrete buffer tank 32 from the conduit 16 by a filling vessel 34, and a surface is molded by a press plate device 40. The effective length of the conduit 16 is adapted to the operating speed of the finishing machine 4 so that the pump 14 feeds concrete sufficiently curable at all turns. Accordingly, the device can be lightened, the application of powerful load to a subgrade can be avoided, and concrete can be injected into the tie spacings by a simple method.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for pouring between sleepers between continuous sleepers of a rail grid and between conventional concrete plates placed on a base surface for laying gravelless rails. .

[0002]

2. Description of the Related Art A concrete finishing machine of this type is known from European Patent Application Publication No. 379148A2. This finishing machine can be transported on the edge beam with both sides of the concrete plate raised by an appropriately driven endless track traveling device, so that when the finishing machine travels on the rails of the rail grid, Care must be taken to prevent the overall weight from becoming too heavy. The rail grate is tentatively fixed by its adjustment and is therefore mounted with a slight load. Supplying concrete is problematic with known devices. Front-to-back feed by conventional rail vehicles is eliminated due to the slight loading of the rail grid. Moreover, it also interferes with the preceding rail survey device as described in EP-A-379148A2. Therefore, the supply vehicle must typically stop at the head end of the rail grid away from the concrete finisher. Side approach transport
Especially in the case of tunnel construction area and single track section,
Moreover, it is impossible. In addition, the corresponding vehicle must travel, which can be an obstacle in some cases.

[0003]

DISCLOSURE OF THE INVENTION The present invention provides a concrete finishing machine for pouring concrete into a sleeper gap in a simple manner even in an inconvenient situation in rail laying work without gravel. The problem is an issue.

[0004]

[Means for Solving the Problem] In order to solve the problem,
According to the invention, a rail conventional concrete pump at the rear end of the device in the working direction of the device, a concrete finisher at the front end of the device for injecting concrete into the sleeper gap, and a rail conventional conduit support, In effect,
An apparatus is provided which comprises a concrete pump and a pump conduit between the concrete finisher, such that a concrete pump advancing in the same manner as the concrete finisher always fits such lengths as to deliver fully hardened poured concrete.

According to the invention, the concrete pump is
As a rail conventional concrete supply unit, the concrete pump can travel on the rail without any problem because it is within the range of sufficiently hardened injected concrete. This kind of combination is described, for example, in German Patent Application Publication No. 39.
It is well known from Japanese Patent No. 25344A1. Since this rail-conventional conduit support only supports the pump conduit, it can be made sufficiently lightweight. The conduit support can then easily be run on the pouring rail grid before the setting of the pouring concrete. By using a concrete pump,
Concrete finishing machines are always able to provide the concrete needed in a moment, according to European Patent Application Publication No. 379148.
It is possible to provide a concrete finishing machine having one or more large-capacity concrete buffer tanks described in the A2 publication. The concrete finisher thus saves weight and, in some cases, can run directly on the rail grid. In any case, the occasional heavy loading of the roadbed is avoided.

In the development of the invention, for continuous operation of the device at working speed, the distance between the concrete finisher and the concrete pump, which is essentially equal to the product of working speed and hardening period, is bridged by the concrete conduit. It has become so.

Further, in continuous operation of the device at working speed, essentially, during the working phase of the working period and during the rest phase of the rest period, if the working period is at least equal to the hardening period, the working speed and the hardening speed are essentially And the working period is less than the setting period, the distance between the concrete finisher and the concrete pump, which is equal to the difference between the working speed and the setting period and the rest period, is bridged by the pump conduit. ing.

It may be convenient for the support conduit, in particular about 500 m, so that the distance between the concrete finisher cross-linked by the pump conduit and the concrete pump is at least 100 m, in particular at least 200 m, at best about 300 m. Do you get it.

According to a development of the invention, only the concrete finisher comprises a traveling drive, and the traveling drive unit for the concrete pump is omitted so that the concrete finisher entrains the concrete pump via the conduit support. There is.

It is particularly advantageous here if at least a part of the joint connection between the concrete finisher, the conduit support and the concrete pump is constituted by a joint play in the direction of travel. This joint play creates a kind of "index harmonica effect" which makes starting essentially easier for the start of the finishing stage. If, after the end of the preceding finishing stage, the preceding finishing machine is suddenly shut down, the additional conduit support and the concrete pump will overrun, depending on the occasional joint clearance. During the next start, first the conduit support following the concrete finisher, and then the further distant conduit support and the concrete pump are sequentially entrained and accelerated,
Simultaneous starting of the integral elements of the chain is avoided.

The pump conduit can thereby carry out an indexing harmonica movement in a simple manner and, because of the length balance, the pump conduit is at least partly arranged in a zigzag manner on the conduit support.

The inclusion of a light metal grid frame with rail travel provides a conduit assembly that is easy to assemble and yet is reasonably stable.

To reduce manufacturing costs, the conduit support is further designed to include another light metal grid frame that can be replaced between certain light metal grid frames with continuous rail travel. In this way, in the case of the second light metal grid frame, the rail running device can be omitted.

To ensure a continuous supply of the concrete finisher, the concrete pump is provided with a concrete pump buffer tank.

The present invention also relates to a method for establishing a gravel-less rail laying work, in which a conventional concrete plate is placed on the working base surface, the rail girder is reinforced on the concrete plate, and a space between continuous sleepers is provided. The concrete pouring is carried out by the concrete finishing machine between the gap and the sleepers and the concrete plate, and the concrete finishing machine is connected to the concrete pump via the pump conduit, in which case essentially the same as the concrete finishing machine. The length of the pump conduit is adapted to the working speed of the concrete finisher so that the traveling concrete pump always delivers a fully hardened poured concrete.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to an embodiment shown in the drawings.

Rail structure without gravel (RHED type)
Then, the sleepers are not embedded in the gravel floor, but are placed on a continuous concrete slab and combined with the concrete slab by pouring concrete. At that time, the antifreezing layer (FSS) is first built in, and then the steps are sequentially performed so that the hydraulically consolidated foundation HGT is constructed. At that time, the conventional basic finishing machine was used, and because of the secondary compression,
Rollers or roller indexes are performed. The next step is the production of the concrete support plate TRG with reinforcement. According to European Patent Application Publication No. 0379148A2, the concrete board shown by TRG in FIG. 1 is provided with a concrete edge beam with raised sides. In the embodiment according to FIG. 1, no concrete edge beam is provided. Here, the concrete plate TRG is thinner than the hydraulic compaction foundation HGT, and the edge lanes 2 of the hydraulic compaction foundation HGT are respectively formed on both sides of the concrete plate TRG, and the edge lanes are suitable, for example, a tracked traveling device. Among the various traveling devices, at least the concrete finishing machine 4 which is not extremely heavy can travel. In the illustrated embodiment, the concrete board TRG is further provided with two ribs 6 on which the sleepers 8 can be placed, or the sleepers 8 and two rails 12
It is possible to install the rail grating body 10 composed of and.

Before the final installation of the rail grid by pouring the sleeper gaps is carried out by the concrete finishing machine 4, each rail grid is precisely adjusted to the required altitude, lateral position and slope. Is a problem. This adjustment can be performed by the rail tie beam adjusting device also described in the above-mentioned European Patent Application Publication No. 0379148A2. Temporary mounting by the adjusting device can be performed by male screws, keys, or quick-setting special concrete for mounting the sleepers on the concrete plate TRG.

The device described below for injecting into the sleeper gap is
The above-mentioned concrete finishing machine 4 at the front end in the operating direction A of the apparatus and the rail conventional concrete pump 14 at the rear end.
And a pump conduit 16 between the concrete finishing machine 4 supporting a rail conventional conduit support 18. In the exemplary embodiment, the concrete pump 14, which is pulled from the concrete finisher 4 over the conduit support 18, always has an effective length of the pump conduit 16 such that it delivers a well-hardened poured concrete. Adapted to working speed. The concrete is further fed to the concrete pump 14 via a conventional concrete mixer truck 20. Cement mixer trucks are based on pre-hardened poured concrete and are capable of approaching travel on rail conventional flat bed wagons.

For this purpose, West German Patent Application Publication No. 3925
According to 344A1, the flatbed freight car 22 can be used and the required drive torque is derived from the wheel set of the drive axle of the mixer truck 20.

A concrete buffer tank 23 is provided in the concrete pump in order to enable continuous operation even when the mixer truck 20 changes instantaneously.

The construction of the concrete finisher 4 substantially corresponds to the concrete finisher known from EP-A-0379148A2. The content of this publication belongs to the known content of this application.

Via the driven tracked vehicle 26,
A frame 24 is known which supports the lower part in the region of the rear end via the front end and a simple two-wheeled vehicle 28. Contrary to the European publication, the vehicles 26, 28 run on the edge rails 2 of the hydraulic compaction foundation HGT on the sides of the concrete support plate.

At the front end of the concrete finishing machine 4, there is a main drive unit 30. This unit includes a pump conduit 16
Continues to the concrete buffer tank 32 that flows in from above. The arrangement according to the invention ensures a continuous concrete supply so that the required buffer volume can be relatively small. This also leads to a significant reduction in the total weight of the concrete finishing machine, which for this reason can run over the hydraulic compacting foundation HGT without problems. Concrete board TRG
Can accordingly be made thinner, and possibly slightly solid, which reduces manufacturing costs. Also, the side rising concrete edge rail can be omitted.

In FIG. 1, a filling container 34, which is further connected to the tank 32 and supplies concrete to the sleeper gap, is shown. If necessary, this filling container can be mounted on the frame 24 in a height-adjustable manner, in which the filling container reaches the sleeper gap in the lower end position and rises from the sleeper gap in the upper end position, which means that it is a vibrating bottle. As well as 36 being provided in the vibrating vessel 34 which improves the concrete distribution between the sleepers and the concrete distribution between the sleepers and the concrete plates TRG, they are individually and further described in the above mentioned European patent application publications.

In order to improve the working speed, it is also possible to use filling containers 34 which are arranged consecutively in the working direction, these filling containers being simultaneously and submerged between the sleepers,
Raised again from the sleeper range.

At the rear end of the concrete finishing machine 4, there is a press plate device 40, which securely closes the hole formed when the vibrating bottle 36 is pulled up, and the set cross sectional shape portion (straight area guide). In the case of, both gable roofs, and in the case of curved parts are inclined), ensure the outflow of surface water. The press plate device 40 is described in the above-mentioned European Patent Application Publication. Two-part press board device 40 that can be momentarily lifted on a sleeper
As shown in FIG. 1, a lever mechanism 44 for raising and lowering the press plate 42 and an adjacent drive unit 46 on the frame 24. To get a flat concrete surface,
The adjacent drive unit also drives an unbalanced drive device (not shown) connected to the press device.

As mentioned above, the effective length of the pump conduit 16 is sized to ensure that the concrete pump 14 operates with pre-hardened poured concrete. During continuous finishing, the minimum distance between the concrete finisher 4 and the concrete pump 14 which is bridged clockwise from the concrete conduit 16 is a length value equal to the product of the working speed V and the hardening period tA. For example, 25
With a working speed V of m / h and a curing period tA of 12 h, for example, the minimum distance is 12 × 25 m = 300 m.

Work phase of work period t1 and rest period t2
In the alternating discontinuous working mode of the resting stages, it must be distinguished whether the working period t1 is at least equal to or different from the hardening period tA. In the former case, the distance is the product V
XtA.

On the other hand, the working period t1 is the hardening period t
If shorter than A, the distance will be the product V * (tA-t2). For example, in a working speed V of 25 m / h, a working period t1 of 10 h, for example, a rest period t2 of 2 h, for example, a hardening period tA of 12 h, the minimum distance between the concrete finisher 4 and the concrete pump 14 is ( 12-2) x 25
= 250m.

A distance of 300 m has been found to be a sufficient value.

Correspondingly long concrete conduit 16
Can no longer drag to the ground. The concrete conduit 16 is then placed on the conduit support 18 described above. The conduit support also provides a mechanical connection between the driven concrete finisher 4 and the non-driven concrete pump 14. A simple structure is used so that the conduit support 18 can run directly on the rails 12 of the rail grid 10 which are only temporarily fixed in the adjusted position.

2 to 4 show a conduit support 18 of this kind.
The example will be briefly described. The conduit support includes a horizontal light metal grid frame 50 that is supported on rails 12 via corresponding rail travel. In FIG. 1, therefore, the rotating abutment-shaped two-wheel traveling device 52 is used, which is relatively expensive. On the other hand, in the exemplary embodiment according to FIGS. 2 to 4, for the sake of simplicity, each traveling device 52 ′ has a kingpin support 5
It consists of individual rail wheels 54 with axles 55 which are connected via 6 to the grate frame 18. In FIG. 2, only the rail travel device 52 'at the left end of the grate frame 18 is shown. The wheels 55 are shown in the right rail traveling device.

The length L of each conduit support 18 is about 10 m.
And at a cross-linking distance of 300 m, that would require 30 supports. In order to further reduce the manufacturing costs and the weight on the rail 12, a simple light metal grid frame between two consecutive but conventional rail supports 18 separated from each other by about 10 m, without rail travel. It is possible to place the conduit support 18 'in the form of 50'. In particular, as shown in FIG. 3, the frame 50 'includes an extension 60
The upper portion is supported and the extension is welded to the underside of the grid frame 50, for example in the range of frame angles as a continuation of the side frame crossbeam 50a.

The connection between the rail-conventional conduit supports 18 as well as between the conduit supports 18, 18 'is possible on the one hand with a small range of rocking around the vertical joint axis 66, and on the other hand with the device. In order to facilitate the running of the vehicle, the coupling device is made with a certain play in the running direction (working direction A). A coupling device of this kind is outlined in FIGS. 2 and 4 and is shown at 70. The coupling device is formed in one part of both parts to be connected, for example in the lattice frame 18 ', by means of a vertically projecting joint pin 72, which joint pin is in each other part (here the conduit support 1).
It fits in the joint long hole 74 in 8). The long hole 74 is the joint plate 7
6, the joint plates are welded to both ends of the lattice frame and extend in the longitudinal center plane. The length LL of the slot exceeds the diameter of the joint pin 72 by about 5 cm and a corresponding joint play occurs. The joint pin 72 also defines the axis 66 and allows the relative desired rocking of the frames 50, 50 'and the fitting in curved sections. It is emphasized that the joint seam 70 can also be configured in other ways.

This joint play thus facilitates running of the entire device. This is because the concrete finisher brakes relatively quickly at the end of the final working stage, after which the conduit supports 18, 18 'that were previously pulled by the finisher.
The reason is that, including the concrete pump 14, it proceeds continuously depending on the joint play. In the course of the renewal, first the joint play between the concrete finisher and the subsequent conduit support 18 is removed and then this conduit support is entrained.

Thus, again, the pump conduit 16 follows the accordion-type movement effortlessly, with corresponding equal length play, said movement being constituted at least in range. Thus, the pump conduit 16 can be arranged on the grid frame 50 in a corrugated or zigzag manner, as shown in FIG. 2 and FIG. To prevent lateral slippage of the pump conduit 16, the pump conduit can be guided in a forked manner. 2 and 4, they are relatively narrowly adjacent and project vertically upward from the lattice frame 50.
Book guide rods 80 are shown, which guide rods are also provided at corresponding positions of the grid frame 18 'to which they are connected. Due to the equal length of the concrete conduit 16, the distance is sufficiently distributed to allow reciprocating movement (double arrow B) substantially between the rods 80 in the longitudinal direction of the hose.

In the region of the longitudinal center, two further guide rods 82 are provided, which rods, however,
Obviously, they have a large distance from each other and allow lateral movement of the hose conduit 16 (arrows C, D), the hose conduit 16 being able to bend strongly and strongly without difficulty due to the equal length in this range.

After the finishing stage, the concrete conduit 16
Is cleaned in the form of a hose, in particular by a rubber ball, which substantially corresponds to the cross section of the hose, being compressed by compressed air passing through the hose.

[0040]

As described above, according to the present invention, in the sleeper gap between continuous sleepers of the rail grating and the gravelless rail laying work, concrete is put in the sleeper gap by a simple method even in an inconvenient situation. Can be injected.

[Brief description of drawings]

1 is an overall side view of the device for injecting into the sleeper gap,
The upper part of FIG. 1 shows the range of the concrete finishing machine at the front end of the device, and the lower part of FIG. 1 shows the range of the concrete pump at the rear end.

FIG. 2 is a simplified plan view of a conduit support.

FIG. 3 is a detailed sectional view taken along the line III-III in FIG.

4 is a detailed cross-sectional view taken along line IV-IV in FIG.

[Explanation of symbols]

 2 lanes 4 Concrete finishing machine 8 Sleepers 10 Rail grid 14 Concrete pump 16 Pump conduit 18 Conduit support

Claims (12)

[Claims] 1. An apparatus for injecting a sleeper gap between successive sleepers (8) of a rail grid (10) and between the sleepers (8) and a conventional concrete plate mounted on a working base. Conventional concrete pump (14) at the rear end in the working direction of the concrete, concrete finishing machine (4) for concrete in the sleeper gap at the front end of the device, and a concrete finishing machine supported by the rail conventional conduit support. The length of the concrete pump (14) and the concrete finishing machine (4) are adapted to the working speed of the concrete finishing machine (4) so that the concrete pump (14) moving forward similarly always carries the sufficiently hardened injected concrete. ) And a pump conduit (16) between the device. 2. In the case of continuous working mode of the device at working speed (V) of the concrete conduit (16), the minimum distance between the concrete finisher (14) and the concrete pump (4) is bridged, said distance Is substantially the product (V × t) of the working speed (V) and the hardening period (tA) of the poured concrete.
Device according to claim 1, characterized in that it is equal to A). 3. Concrete finishing in the case of a discontinuous working mode of the equipment of working speed (V) in the working stage of the concrete conduit (16) during the working period (t1) and during the rest stage of the rest stage (t2). The minimum distance between the machine (4) and the concrete pump (14) is bridged and the working period (t
When 1) is at least equal to the setting period (tA), the minimum distance is substantially the product of the working speed (V) and the setting period (tA) of the poured concrete (V × tA), and the working period (t1) Is less than the cure period (tA), the minimum distance is substantially the product of the working speed (V) and the difference between the cure period (tA) and the rest period (t2) (V * (tA-t2). ))
The device of claim 1 wherein: 4. Concrete finishing machine (4) and concrete pump (14) bridged by a pump conduit (16).
The distance between and is 100m or more, especially 200m or more,
A maximum of about 300 m, characterized in that
Or the apparatus according to 3. 5. The concrete finishing machine (4) is movable on the side of the concrete board (TRG) on the working base surface, or on the concrete board, or in some cases, on the side rising concrete edge beam of the concrete board. Device according to claim 1, 2, 3 or 4, characterized in that it is movable. 6. A concrete finishing machine (4), wherein only the concrete finishing machine (4) is provided with a traveling drive device (40).
Entrains a concrete pump (14) via a conduit support (18).
The device according to 3, 4, or 5. 7. At least part of the joint connection forms a joint play in the direction of travel between the concrete finisher (4), the conduit support (18) and the concrete pump (14). , The joint play is 2-10cm, the best is about 5
7. Device according to claim 6, characterized in that it is in cm. 8. Device according to claim 7, characterized in that the pump conduits (16) are arranged at least in sections in a zigzag manner on the conduit support for equal length. 9. The conduit support (18) has a light metal grid frame (50) with rail travel (52; 52 ').
9. A device according to any one of claims 1-8, characterized in that it comprises: 10. The conduit support (18) comprises a light metal grid frame (5) with continuous rail travel (52 ').
Another light metal grid frame (50 ') replaceable between 0)
10. The apparatus of claim 9, comprising: 11. A device according to claim 1, wherein the concrete pump (14) comprises a concrete buffer tank (23). 12. A method of manufacturing a gravel-free rail track, wherein a conventional concrete plate (TR) is provided on an execution base surface (HGT).
G) is placed and the rail girder (10) is a concrete plate (T
RG), sleepers (8) and concrete boards (TR)
G) is injected by a concrete finisher (4) between the sleeper gap between it and the continuous sleeper (8), and the concrete finisher (4) is connected to the concrete pump (14) via the pump conduit (16). The work of the concrete finisher (4) is such that the length of the pump conduit (16) is such that the concrete pump (14), which moves substantially like the concrete finisher (4), always delivers fully hardened poured concrete. The method characterized in that it is adapted to speed.