DE202013003449U1 - Lubrication device for switch locks - Google Patents

Abstract

Lubrication device for switch locks, in particular for lubricating a closure pawl and cam rod cooperating with a closure piece, characterized by cartridges (9) arranged on the switch closure sides (1a, 1b) and filled with a lubricant which deliver the lubricant to the closure pawl (9).

Description

The invention relates to a lubricating device for switch closures, in particular for lubricating a cooperating with a closure piece closure pawl and cam bar.

As a closure device for switch blades or tongue rails latch locks, consisting of a tongue block, a closure piece, a closure pawl and cam or slide rods, well known and described (see DE 10 2008 060 229 A1 ).

In the simultaneous, opposing adjustment of the two Weichenverschlussseiten in a railway turn the sliders slide along the respective jaw rail foot, wherein the closure pawl of a soft-lock side dips into the closure piece and this engages behind for locking the tongue rail adjoining the stock rail. The other closure pawl is released from the locking engagement with the closure piece, so that the other, opposite points closure side is open and the tongue rail is removed here at a suitable distance from the stock rail.

To ensure a smooth sliding and effortless locking and unlocking of the pawls, a suitable lubricant must be applied to them.

In practice, the switch locks by appropriate maintenance personnel by hand, for example, lubricated so that a lubricant mixture is applied to the pawls by means of a brush, with neither amount of lubricant nor lubrication frequency can be defined with sufficient accuracy. A part of the lubricant applied in this way already reaches the lubricating z. B. on the ballast bed. Environmental pollution and an unnecessarily large accumulation of dirt bound by the excess lubricant make additional labor-intensive cleaning necessary.

Furthermore, point lubricators are known to work on the principle of a garden sprayer. The reservoir for the lubricant mixture is carried by an operator with the aid of a support frame on his back. The reservoir is connected via a hose with a lubricating lance, through which the lubricant is conveyed at a pressure of about 3-6 bar.

These weighers have a curb weight of approx. 5 kg plus the weight of the lubricant up to 5 l. For use in practice, these devices are too bulky and oversized, since only a small amount of lubricant is required per turnout.

Especially for points outside of railway stations and on high-speed lines (> 200 km / h), the safety risk for maintenance personnel plays an increasingly decisive role in the increasing speeds. Here, the travel costs to the location of the switch and the personnel costs to protect the maintenance personnel far exceed the actual lubrication costs.

The invention is therefore an object of the invention to provide a lubricating device for switch locks, which avoids the aforementioned disadvantages and dangers of manual lubrication while reducing costs.

This object is achieved by arranged on the switch lock and filled with a lubricant cartridges, which deliver the lubricant to the closure latch. The cartridges, which are associated with two switch closures of a points changeover device as a single point lubricator, do not require separate pressurization to deliver the lubricant. Rather, the cartridge has its own, maintenance-free, z. B. gas-powered or motorized drive unit, which conveys the lubricant to the closure pawl via a movable piston within the cartridge.

The cartridge thus operates independently, and it can be advantageously adjusted so that a precisely defined amount of lubricant is delivered at regular intervals. Preferably, the automatic lubricant interval then takes place when the closure pawl engages behind the closure piece and thus locks the tongue rail against the stock rail.

The greater the time intervals between the individual lubrication intervals, the longer the delivery time of the lubricant in the cartridge. The delivery time of the cartridge can thus be extended to about 12 months.

A preferred embodiment of the invention provides that the cartridge is connected on the output side with a hose element, at the other end of a directly acting on the closure pawl application agent is arranged. The applicator may in this case be a sponge, a fleece pad, a nozzle or the like, which is supplied via the hose with the lubricant and thereby impregnated by this.

Once the closure pawl has passed through the closure of the switch closure, it slides with its surface over the sponge or under the nozzle such that the sponge or nonwoven pad is compressed, with the lubricant on the surface of the closure pawl distributed or the lubricant is sprayed from the nozzle.

According to a further embodiment of the invention, it is provided that the cartridge and the application means are arranged on a holding element which is attached directly to the closure piece. The holding element is approximately gallows-shaped, wherein the gallows engages over the tail from the side. The cartridge is in this case in a horizontal position laterally adjacent to the closure piece, while the applicator is attached to the gallows and protrudes from above into the recess provided for the closure pawl of the closure piece.

By means of the lubricating device according to the invention, an automatic and reliable lubrication of the point closures is achieved by means of the self-sufficient cartridge which works without any special maintenance. At regular intervals of about 12 months, only the lubricant cartridges need to be changed.

Further features and details of the invention will become apparent from the claims and the following description of an embodiment of the invention shown in the drawings.

Show it:

1 in schematic overall view of a railway switch with device for switching switch locks designed as buckles, the left side of the closure is shown in the open and the right side closure in the closed position;

2 in a partial view as a detail, the closed, right latch side closure with lubricating device arranged thereon; and

3 as a detail the lubrication device according to 2 ,

In 1 is a changeover device 1 a railway switch for the conversion of bilateral turnouts 1a . 1b shown. Each switch lock or each switch lock side 1a . 1b - hereafter referred to as the switch point - has a tongue joint 2 , a closure piece 3 and a pawl 4 (compare to this 2 ) on.

The simultaneous, opposing adjustment of the two switch locks 1a . 1b is done by two identical cam or slide rod halves 5a . 5b that have a connection tab 5c are integrally connected to each other. At the connecting strap 5c engages a drive linkage, which is moved by a servomotor, not shown here. By the movement of the in the closure pieces 3 guided or running on this cam or slide rods 5a . 5b and their interaction with the pawls 4 become the switch locks 1a . 1b open ( 1a ) or closed ( 1b ).

At the closed switch lock 1b lies a tongue rail 6 fixed to a stock rail 7 at. In contrast, in the opened switch lock 1a the tongue rail 6 at a suitable distance, the so-called tongue impact, from the stock rail 7 away.

In the 2 is as a detail in a partial view of the closed switch lock 1b with a the closure piece 3 associated lubricating device 8th shown. As not shown here, there is a same lubrication device 8th at the point lock 1a ,

The lubrication device 8th consists of a filled with a lubricant cartridge 9 , the delivery side via a hose 10 with one directly from the top of the pawl 4 acting sponge 11 is connected as a means of order. Both the cartridge 9 as well as the sponge 11 are at one with the stopper 3 connected and the closure piece 3 Galgenartig overarching headband 12 attached.

The cartouche 9 is a so-called single-point lubricator, which is formed with an internal, gas-powered or motorized drive unit by means of a inside of the cartridge 9 movable piston the lubricant over the hose 10 to the sponge 11 promoted.

In a gas-powered cartridge 9 the pressurized gas is used to actuate the piston by a chemical reaction within the cartridge 9 generated. With the motorized cartridge 9 ensures one inside the cartridge 9 built-in battery for the operation of the piston. In both cases it is achieved that the cartridge 9 no control or admission from outside needed, it works so self-sufficient.

Further, it has both the gas-powered and the motorized cartridge 9 a setting facility that allows a precisely defined amount of lubricant at regular intervals to the sponge 11 and thus the pawl 4 is encouraged. The sponge 11 is thus regularly soaked with lubricant, but not soaked, which prevents dripping out of the lubricant with the sponge.

Once the pawl 4 the closure piece 3 has passed or passes through, it rubs with its surface on the sponge soaked with lubricant 11 over and is thus supplied with the lubricant. This process is repeated when the pawl 4 of the switch lock 1b is moved back from the illustrated, locked position to the unlocked position outside of the closure piece. The above for the switch lock 1b The lubrication processes described apply equally to the point lock 1a ,

LIST OF REFERENCE NUMBERS

1

Changeover

1a

Soft closing side / soft closure

1b

Soft closing side / soft closure

2

tongue attachment

3

closing piece

4

thumb catch

5a

Cam or slide rod half

5b

Cam or slide rod half

5c

connecting strap

6

tongue rail

7

stock rail

8th

lubricator

9

cartridge

10

tube

11

Application agent (sponge, fleece pad, nozzle)

12

headband

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102008060229 A1 [0002]

Claims (5)

Lubrication device for switch closures, in particular for lubricating a closure pawl and cam rod cooperating with a closure piece, characterized by at the switch closure sides ( 1a . 1b ) and filled with a lubricant cartridges ( 9 ), which lubricates the sealing pawl ( 9 ) submit. Lubrication device according to claim 1, characterized in that the discharge quantity of the lubricant via the cartridge ( 9 ) is adjustable. Lubrication device according to claim 1 or 2, characterized in that the cartridge ( 9 ) on the output side with a hose element ( 10 ) is connected at the other end directly to the pawl ( 4 ) acting order agent ( 11 ) is arranged. Lubrication device according to one of claims 1 to 3, characterized in that the cartridge ( 9 ) and the order means ( 11 ) on a holding element ( 12 ) are arranged directly on the closure piece ( 3 ) is attached. Lubrication device according to claim 4, characterized in that the retaining element ( 12 ) is formed gallows-like.

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