DD288299A7 - LIFTING DEVICE AND LIFTING METHOD - Google Patents

Abstract

The invention relates to a lifting-straightening device, which is used in particular on track tamping machines, track leveling machines or combinations thereof for lifting and straightening tracks or rail trackers for lateral displacement of tracks, during a working drive the rail fasteners not damaged, lowered the wear of lifting rollers and straightening rollers and the lifting straightening device can be securely locked in the transport position. According to the invention, this is achieved by assigning a contact to a lifting roller and directly contacting a same reference plane as a running surface of the lifting roller, or contacting the reference plane directly or indirectly via an adapter with the reference plane, one to the rail head tilted straightening roller is arranged opposite a lifting roller, a plow shields at least one lifting roller and a plow tip is located in a sufficiently small distance from the rail head and a self-latching latching is preferably arranged on a working cylinder. FIG. 2 {track tamping machine; Track leveler; Straightening roller; Lifting role; Contact; Adapter; A joining; Track; Reference plane; Plow; locking; Railhead; Lifting operation}

Description

For this 2 pages drawings

Field of application of the invention

The invention relates to a lifting straightening device, which is used in particular on track tamping machines or track leveling machines or their combination for lifting and / or straightening tracks or on track return machines for lateral displacement of tracks.

Characteristic of the known state of the art

There are known machines and devices for lifting and straightening tracks, the lifting straightening device is fixedly arranged on the machine frame. After a lifting operation, the lifting roller, whose hoistbelt sums under the rail head, lowered so far that it is relieved. The ancestor to the next threshold takes place with the unloaded lifting roller. The straightening rollers take over a support function for the lifting straightening device. The distance between the tread of the straightening roller and the upper edge of the rail is set mechanically and firmly for the working movement of the machine or device. The straightening of the glass is carried out via the flanges of the straightening rollers. There are at least two pairs of straightening rollers for the straightening process and arranged on tong-shaped receptacles lifting rollers or individual lifting rollers, which usually attack between the straightening rollers on the rail for the lifting usual.

Dos further solutions are known in which the lifting straightening device, each with a lifting roller pair and a Richtrol'enpaar, which are arranged to be slidable in the direction of movement along the track, are equipped. This arrangement avoids areas of a rail where the Hebero Jen can not reach under the rail head. Common practice is the compact attachment of the lifting straightening device on the machine frame. Solid guide rods are used for vertical guidance and stable guides for the transverse displacement of the lifting straightening device in order to perform a lifting or straightening operation in an arcuate track system can. A separate locking secures the position of the lifting straightening device in the transport position.

Disadvantages of this lifting-straightening devices are that due to the different state of preservation of a track or track section and the fixed distance between the rail top and tread of the straightening roller during the working drive to damage rail fasteners or Laschonverbindungen comes or that the lifting roller not to avoid such damage under the rail head or the lifting roll from the rail head. ' slip.

Another disadvantage arises due to the horizontal axis position of the straightening rollers, since the straightening forces are transmitted via flanges of straightening rollers on the rail and thereby subject to high wear. The unprotected position of the lifting rollers and straightening rollers is also wear-increasing. The separate locking requires increased manufacturing costs and additional space.

Object of the invention

The aim of the invention is to provide a lifting straightening device, with the effort of working time and material is reduced and the locking of the lifting straightening device in the transport position is greatly simplified.

Essence of the invention

The invention has for its object to provide a lifting straightening device, with the damage to the Schienenbefestigungselemento avoided during a working drive of a machine or device, the wear is lowered in particular by lifting rollers and straightening rollers and brought the lifting straightening device in the transport position and in this is securely locked.

According to the invention, this is achieved by a contact assigned in particular to a lifting roller directly touching a same reference plane as a running surface of the lifting roller or directly contacting the reference plane without contact or the contact being directly or indirectly connected to the reference plane via an adapter. For a preferably designed as an initiator and preferably attached to the lifting roller contact as an adapter also on a pivot axis of the lifting roller movably arranged lever arm is used. The contact is preferably, with respect to working direction, downstream of the lifting roller.

All lifting rollers used for a lifting straightening device is associated with a contact, wherein in each case two lifting rollers, which are arranged symmetrically in a manner known per se to the track and opposite one another, form a lifting roller pair. About the running surfaces of inclined to the rail heads arranged straightening rollers of a straightening roller pair, the straightening forces are transmitted to the rails, wherein preferably each a straightening roller is arranged opposite a lifting roller of a lifting roller pair. A covenant on a straightening roller and / or a runner allows a support of the lifting straightening device.

A plow, which preferably shields a lifting roller and a contact associated with it, is located with a plow tip at a sufficiently small distance from the rail head. With an automatically latching, claw-like lock, which is preferably fixedly arranged on a working cylinder, lifting, holds the lifting straightening device in a transport position.

With the aid of a control downstream of the contact and an associated hydraulic system, which among other things allows the lifting and straightening of tracks, the lifting collar of lifting rollers is pressed during the advance to the next threshold constantly by a slight lifting force and pressure force below the lower edge of a rail head. As soon as the lifting collar of a lifting roller rolls up on an obstacle, a link or the like, the contact directly or indirectly detects the change in distance between the running surface of the lifting roller and the reference plane of the rail head and thus triggers a reversal of the light lifting force into a slight downward compressive force directed, out. Slipping of the lifting roller from the rail head is prevented. The lifting collar of the lifting roll is thereby guided during the rejection of the rail head, which was caused by a tab connection, in a recess between a tab and a lower rail head edge.

For the lifting process priorities are assigned to the individual lifting rollers. The contact signals the concern of further lifting rollers on the rail head, if the lifting process by a rejected lift roller can not be done.

embodiment

The invention will be explained with reference to an embodiment

 Show it

1 is a plan view of a lifting straightening device, 2 shows a side view of a subsystem of a lifting straightening device, 3 shows a detail of a front view according to FIG. 2. FIG. 1 shows a plan view of a lifting straightening device, with the machine frame 1 lying above Figure 2 was cut on a counter-bearing 2 and a cantilever 3 and on working cylinders, lifting, 4. A T-shaped Support frame 5 is supported in the anvil 2 and takes both a pair of lifting rollers 6 and a pair of straightening rollers 7 and a

another pair of lifting rollers 6 on swing 8 on. About the between the cantilever 3 and the support frame 5 horizontally arranged working cylinder, straightening, 9, the straightening forces for lateral displacement of tracks on the tread of

Transfer straightening rollers 7. The working cylinders, lifting, 4 are controlled independently, so that different inclinations of a track

can be realized. With the working cylinders, lifting, 4 and the roller lever working cylinders 10, the in Figure 2 and

Figure 3 shown fixed work position and compensated track height differences. FIG. 2 shows a side view of a subsystem of a lifting straightening device. Between the machine frame 1 and the support frame 5 of the working cylinder, lifting, 4 is arranged articulated. At the Working cylinder, lifting, 4 is a remotely operable self-locking claw-like latch 12 is arranged, wherein the Piston rod carries a counterpart. After lifting and locking the latch 12, the lifting straightening in

held a transport position. Unlocking is done by means of a working cylinder 13. All other working cylinders, lifting, 4 are carried out analogously.

On the roller lever 11, a contact 14 is arranged in the form of an initiator. For an indirect connection to the reference plane at Rail head is arranged on a same axis as the roller lever 11 an adapter 15 in the form of a lever movable. About the adapter 15 and the contact 14, a rejection of the lifting roller 6 is signaled when it encounters an obstacle, such as Example, a tab connection, meets. In the rejected position of a lifting roller 6, the lifting operation of this lifting roller 6 is interrupted and on the same Side of a track also engaged lifting roller 6 reversed. A lifting with staggered lifting rollers 6 becomes

allows. A rejected due to a tab connection lifting roller 6 is with a downward light

Pressure loaded so that they are guided in a recess between a tab and a rail head and slipping

is prevented.

After a lifting operation, the lifting rollers 6 are moved to the next threshold by a slight lifting force during the advancing process

pressed against the lower edge of the rail head. Damage to the rail fasteners by the

Lifting rollers 6 is avoided. FIG. 3 shows a detail of a front view according to FIG. 2, from which a position of a plow 16 can be seen. The the Lifting rollers β in the direction of the pallet in front of the plow 16 have loose obstacles out of the working area of the hammers 6. If necessary, by means of its wheel flange as support rollers for the inclined on the support frame 5 flanged guide rollers 7 Lifting straightener used. For a straightening process of a track, a rail is clamped by the straightening roller 7 and the lifting roller 6.

Claims (3)

1. Lifting straightening device, in particular for track tamping machines or track straightening machines or their combination for lifting and / or straightening tracks or rail trackers for lateral displacement of tracks, characterized in that each one contact (14) is associated with a lifting roller (6) and a the same reference plane as a running surface of the lifting roller (6) is directly touched or contactless directly opposite the reference plane or the contact (14) directly or indirectly via an adapter (15) with the reference plane is in communication, a direction of the rail head inclined straightening roller (7 ) is arranged opposite a lifting roller (6), a plow (16) shields at least one lifting roller (6) and a plow tip is located at a sufficiently small distance from the rail head and an automatically latching, claw-like latch (12) preferably on a working cylinder, lifting , (4) is arranged. 2. lifting straightening device according to claim 1, characterized in that a contact (14) is preferably designed as an initiator and designed as a lever adapter (15) is also arranged on a pivot axis of a lifting roller (6) movable. 3. lifting straightening device according to claim 1 and 2, characterized in that each lifting roller (6) of a lifting straightening device is associated with a contact (14).