Track scales with continuous rails and weighing sleepers

• US 6,653,578 B1
• Filed: 06/11/2001
• Issued: 11/25/2003
• Est. Priority Date: 10/20/1998
• Status: Expired due to Term

• Current Assignee: Schenck Process GmbH (Schenck Process Holding GmbH)
• Original Assignee: Pfister Waagen Bilanciai GmbH (SC Bilanciai Campogalliano)
• Inventors: Gassmann, Helmut, von Wolfframsdorff, Joachim Hose
• Primary Examiner(s): GIBSON, RANDY W
• Application Number:
  US09/830,107
• Time in Patent Office: 897 Days
• Field of Search: 177/163, 177/211
• US Class Current: 177/163
• CPC Class Codes: G01G 19/045 for weighing railway vehicles in motion

Abstract

Continuous, uninterrupted rails for trains and the like having weight measuring sections. Weighing ties replace normal ties under the rails in the weight measuring sections. The weighing ties are of the same height, width, and external contour as the normal ties. The weighing ties include weighing cells that can be laterally adjusted to accommodate various rail gauges. The weighing ties include a housing made of steel plate with a floor, sides, and a top with an opening therein. The weighing cells protrude through the openings in the housings to support the rails in the weight measuring section. Transverse force sensors are also provided in transverse holes in both ends of the weight measuring sections of the rails to determine the power shunt. The weighing cells and transverse force sensors are prefabricated and calibrated to improve accuracy and durability of the weighing cells and force sensors.

Claims

1. Track scales with uninterrupted continuous rails comprising:

a plurality of normal sleepers;

a plurality of weighing sleepers interposed between and replacing normal sleepers in positions corresponding to standard positions for the normal sleepers wherein the weighing sleepers have similar height and width as the normal sleepers and wherein the weighing sleepers each comprise two prefabricated weighing cells supporting the uninterrupted continuous rails;

a weighing section of rail overlying the plurality of weighing sleepers and supported by-the two prefabricated weighing cells of each weighing sleeper wherein the weighing section of rail has a transverse borehole positioned at each end of the weighing section of line in a stem of the rails; and

transverse force sensors comprising prefabricated measuring elements introduced into the transverse boreholes.

2. The track scales of claim 1, wherein each weighing sleeper comprises a sleeper housing having a housing floor wherein the weighing cells are supported on the housing floor so as to project through openings in an upper side of the sleeper housing such that the weighing cells bear the rails and wherein the weighing cells can be shifted and adjusted laterally along the housing floor.

3. The track scales of claim 2, wherein the sleeper housings is continuous with a U-shaped hollow cross-section and wherein the housing floor and connecting side walls of sleeper housing have an external contour corresponding at least to corresponding sections of the normal sleepers.

4. The track scales of claim 1, wherein the weighing cells and the transverse force sensors are precalibrated.

5. A railroad track comprising:

a ballast track bed defining a plurality of sleeper positions extending the length of the track;

a plurality of normal sleepers positioned in outboard sleeper positions;

at least two weighing sleepers interposed between the normal sleepers so as to occupy inner sleeper positions wherein the weighing sleepers comprise at least two weighing cells;

at least two rails each having a stem section having transverse holes wherein the rails overlie and are supported by the normal sleepers and the weighing cells of the weighing sleepers wherein the rails extend in a continuous, uninterrupted manner the length of the track and wherein a section of track overlying the weighing sleepers defines a weighing section of track having a first end and an opposite, second end; and

a plurality of transverse force sensors positioned within the transverse holes in the stems of the rails and further located adjacent the first and second ends of the weighing section of track wherein the weighing cells and transverse force sensors are prefabricated.

6. The track of claim 5, wherein the weighing cells and the transverse force sensors are precalibrated.

7. The track of claim 5, wherein the weighing sleepers further comprise a sleeper housing having a floor, sides, and top wherein the top defines an opening and wherein the weighing cells are supported on the floor and extend through the opening and wherein the weighing cells can be laterally adjusted on the floor.