JPH055003B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a tamping device for tamping and hardening railway bed ballast. Furthermore, for more details,
This invention relates to a tamping device for inserting trackbed ballast into railroad ties of railroad track structures, particularly iron railroad ties, and hardening the trackbed to strengthen the trackbed.

<Prior Art> The conventional methods for compacting track bed ballast in iron sleepers of railway structures were an input method using a tympaner and a method using a machine called a four-headed tamper or a multi-timber tamper.

The former type of tamper has generally been used more widely than before, but due to recent labor conditions (aging of track maintenance workers, etc.), the latter type of mechanization is becoming more popular as it is a vibrating device and is inefficient. This type of work has become the mainstream.

The mainstream method of tamping work using the latter machine is to use a horizontal movement to pack ballast into the lower part of the trapezoidal or rectangular sleeper body, such as conventional wooden sleepers or concrete sleepers, where the movement of the tip of the tamping bar causes the ballast to harden. Therefore, when used in the iron sleepers targeted by the present invention, the compacting effect could not be obtained much.

<Problems to be solved by the invention> Conventional tamping work using machines other than manual labor has a narrow operating range of the tip of the tie bar that ballasts and hardens the lower part of the sleeper, and the wooden and concrete sleepers that have been widely used until now have a narrow range of motion. The equipment was developed for steel sleepers and is therefore unsuitable for use with steel sleepers. It is difficult to perform automatic remote control operations. Ballast insertion and compaction cannot be visually confirmed. It was installed below the trolley, and it lacked the ability to freely compact any area regardless of the arrangement pitch of the sleepers.
There were other problems.

The work of tamping and compacting track bed ballast is the heaviest labor in railway construction, and due to the recent labor shortage (ageing trend), it is necessary to mechanize the conventional manual tamping work with higher-performance work machines to improve efficiency. .

<Means for solving the problem> Therefore, in the tamping device for railway roadbeds, which is attached to the tip of the movable arm 1 of a working machine, a set of tamping units A are installed at both ends of a hanging bar 9 extending left and right from a hanging bracket 8. At least two tamper frames 4 are provided so as to be rotatable in a substantially horizontal plane, and have at least two tamper frames 4 having vibrating devices 2 that are tiltable in a substantially vertical plane with respect to the main body frame 5 of the tamping unit A. , developed a tamping device for railway roadbeds in which a tamping bar 3 is attached to the outside of the frame 4.

The working machine is one that has a movable arm that can be extended and moved up and down like a mini-vacuum construction machine, and a vertically movable arm 13 is installed at the front and rear of a commonly used inexpensive caterpillar type machine.
It is preferable to have a structure in which track wheels 14 capable of running on rails are attached to this, or the entire mini-vacuum is mounted and fixed on a low-floor truck. Of course, this does not preclude the use of a new design in which the driver's cab and moving arm are attached to a bogie that runs on the railway.

The tamping device is attached to the movable arm of the working machine, and the unit includes at least one pair of tamping bars, each tamping bar is provided with a vibration device, and is structured to be tiltable relative to each other by an actuator.

<Function> In the device of the present invention, the tamping bar 3 having the vibrating device 2 at the tip of the working arm, which can be operated remotely, tilts at an angle of about 50° at any position to ram the ballast inside the iron sleeper. It has a hardening effect. Since the two sets of tamping units A and A are installed at the same spacing as the track width, tamping work can be done evenly across the left and right railway tracks.

<Examples> Examples of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a partially cutaway side view of the tamping device of the present invention. Figure 2 is a plan view of the main parts of this device, Figure 3
The figure is a side view of the same, and FIG. 4 is a perspective view of a working machine equipped with the tamping device of the present invention.

As shown in FIG. 4, the device of the present invention has a structure that can be remotely operated as an attachment on the tip of the arm 1 of a mini-vacuum hoe or the like as a working machine, and has a tamping function. Here, the caterpillar of the mini-vacuum is made of rubber or plastic, vertically moving arms 13 are provided at the front and rear of the caterpillar, and a track wheel 14 is provided at the tip of the caterpillar to modify the undercarriage of the mini-vacuum for use on tracks.

Two of the tamper frames 4 of the device are each pivotally supported by pivot points 6 provided on both lower sides of the main body frame 5, and a hydraulic cylinder 7 as an actuator is connected thereto. This hydraulic cylinder 7 moves remotely by operating a lever on a control panel of a machine body such as a mini-vacuumer, and moves the tamping bar 3 provided on the tamper frame 4 at an angle of α≒50° as shown in FIG. The range can be operated freely to compact the ballast inside the iron sleepers.

The base of the tamping bar 3 is fixed to a vibration device 2 provided within the tamper frame 4 in order to have a tamping and hardening function. The vibration device 2 is a vibration motor in this example. Incidentally, since the tamping bar 3 and the vibration device 2 are attached to the tamper frame 4 via the vibration isolating rubber 10, vibrations are prevented from being transmitted to the main body frame 5.

The main body frame 5 is suspended from the tip of the arm 1 of the working machine by a hanging bracket 8, and is rotatably attached to both ends of a hanging bar 9 whose horizontality can be adjusted in the front and back direction by an actuator 1a. In a horizontal plane by Yueta 12 etc.
As shown in Figure 2, the iron sleepers 1 on the left and right rails rotate freely at an angle of approximately β = 0 to 45°.
Fill the chamber with ballast and harden it.

In the apparatus shown in FIG. 2, one tamping device is provided on each side of the hanging bar 9, but this can be selected depending on the work, such as providing two tamping devices on each side.

<Effects of the Invention> Conventional large-sized machines (Multai, etc.) have difficulty in making capital investment profitable for track maintenance work in steel works premises and small-scale railways, and heavy manual labor is the main task. However, this device has been modified and multi-functionalized as an attachment to a small working machine (mini-vacuum hoe), etc., making it possible to perform tamping operations in the same way as manual tamping operations. The filling status can be visually checked by the operator, making tamping operations more efficient and safer.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view of the tamping device of the present invention. Figure 2 is a plan view of the main parts of this device, Figure 3
The figure is a side view of the same, and FIG. 4 is a perspective view of a working machine equipped with the tamping device of the present invention. 1... Arm, 1a... Actuator, 2...
... Vibration device, 3... Tamping bar, 4... Tamper frame, 5... Body frame, 6...
Rotation fulcrum, 7... Hydraulic cylinder, 8... Hanging bracket, 9... Hanging bar, 10... Vibration isolating rubber, 11...
...Iron sleeper, 12...Rotary actuator.

Claims (1)

[Scope of Claims] 1. A tamping device for railway roadbeds that is attached to the tip of a movable arm 1 of a working machine, in which a set of tamping units A are mounted on both ends of a hanging bar 9 extending left and right from a hanging bracket 8 in a substantially horizontal plane. At least two tamper frames 4 which are rotatably provided and have vibrating devices 2 which can be tilted in a substantially vertical plane with respect to the main body frame 5 of the tamping unit A are provided facing each other. A tamping device for a railway bed, characterized in that a tamping bar 3 is attached to the outside. 2. The railway according to claim 1, wherein the working machine is a backhoe having track wheels 14 provided on vertically movable arms 13 at the front and rear of the caterpillar, and the mounting interval of the tamping units A, A at both ends of the hanging bar 9 is approximately the width of the track. Track bed tamping device.