30085962 pdf ¦ ¦ Confirmed September 2011 � § ¨ § ¨ ¦ ¦ ¦ EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN 13775 2 June 2003 ICS 45 060 20 English version Railway applications Measuring of new a[.]
General
The limit deviations apply to the finished products in each case.
Deviations from the European Standard are allowed, provided they do not introduce any operational hazards Such deviations must be mutually agreed upon by the relevant contracting party and the inspection agency.
Precondition
The precondition for carrying out the measuring processes as specified in this standard is that the principles laid down in EN 13775-1 are adhered to.
The control sheet form for documentation of the results of the measuring processes given in annex A shall be used.
Determination and fixing of the main reference axis of the wagon.
Shown in the backbone position
1 Main reference axis of the wagon
The primary reference axis of the wagon is defined by a straight line that runs through the centers of the underframe pivots, as illustrated in Figure 1 This axis must be marked with a clearly visible and permanent indication.
Shown in the backbone position
Distance between the centres of the pivots.
Shown in the backbone position
The distancex2between the centres of the pivots is measured (see Figure 3).
Difference in length of even overhangs.
Shown in the backbone position
The distancesx3.1andx3.2are measured in the main reference axis of the wagon (see Figure 4).Difference betweenx3.1andx3.2:≤5 mm
Straightness of the outer edge of the longitudinal members in the y-direction If there is no outer solebar, the centre longitudinal members shall be measured.
Shown in the backbone position
The deviation from straightness of the outer edges of the longitudinal members are measured from the main reference axis of the vehicle (see Figure 5).
Distance of the longitudinal members from the main reference axis of the wagon.
Shown in the backbone position
The distance \( y_2 \) from the main reference axis of the wagon to the outer edge of the longitudinal members, or alternatively to the inner edge of the longitudinal members or underframe, is measured at specific points: 1R, 2R, 3R, 1L, 2L, and 3L (refer to Figure 6).
Squareness of the headstocks to the main reference axis of the wagon.
Shown in the backbone position
The rectangularity of the headstock to the main reference axis of the wagon is measured in the space between the buffer centers C at both wagon ends (see Figure 7).
Squareness tolerance forx4:≤5 mm relative to C.
Flatness of the underframe bolster in the area of the underframe pivot support.
The flatness z1 of the underframe bolster is measured in the area of the underframe pivot support (see Figure 8).
Limit deviations forz1:≤ 2 mm over length of 500 mm
Flatness of the friction plate supports.
The flatnessz2of the friction plate supports is measured (see Figure 9).
Limit deviations forz2:≤ 2 mm over length of 500 mm
Position of the underframe pivot relative to the friction plate mounting drilling pattern.
1 Centre line of the wagon
The distancex6 between the centre of the drilling pattern for the friction plate mounting and the centre of the centring ring is measured at measuring points 1 and 2 (see Figure 10).
Distance of the friction plate mounting drilling pattern.
Shown in the backbone position
Squareness of the friction plate mounting drilling pattern.
1 Main reference axis of the wagon
2 Centre of the friction plate
The squareness of the friction plate mounting drilling pattern relative to the main reference axis of the wagon is assessed at measuring points 1 and 2, with the measured length B representing the distance between the drilling patterns (refer to Figure 12).
Limit deviation for squareness forx7:≤ 3 mm relative to B.
Position of the housings for the coupler in the operating position.
2 Main reference axis of the wagon
Figure 13 a) The difference in height between the ends of the housings and the reference plane is measured at each end of the wagon (see Figure 13).
Tolerance:Δz3:≤4 mm b) The symmetrical deviation between the housings and the main reference axis of the wagon is
3 Main reference axis of the wagon
4 Contact face of buffer mounting
The dimension pertains to the placement of the traction stop, which is produced with a tighter tolerance Additionally, the distance between the contact face of the buffer mounting and the edge of the opening angle is measured as distance x12 (refer to Figure 14).
Limit deviations forx12: + − 3 0 mm e) The depthx13 of the locating area for the support is measured (see Figure 14).
Limit deviations forx13:± 2 mm f) The horizontal deviation from rectangularityx14of the traction or impact stop to the centre of the housing is measured (see Figure 14).
Tolerance on rectangularityx14: 1,5 mm g) The vertical deviation from rectangularityx15of the traction or impact stop to the centre of the housing is measured (see Figure 14).
The tolerance for rectangularity is set at 1.5 mm, while the distance \(y_5\) between the two center longitudinal members is measured with a limit deviation of ±3 mm Additionally, the distance \(y_6\) between the traction stops in the transverse direction of the underframe is also measured.
Limit deviations fory6: + 0 4 mm j) The coupler seat widthy7is measured (see Figure 14).
Limit deviations fory7: + 0 4 mm k) The distance z4between the centre of the housing and the front cover plate or the front baseplate is measured (see Figure 14).
Deviation of the longitudinal members from straight in the z–direction.
The deviationz6 of the longitudinal members from straight in the operating position of the underframe is measured at measuring points 1R, 2R, 3R 1L 2L and 3L (see Figure 15).
Limit deviation forz6.1andz6.3:±5 mm forz6.2for underframe lengths≤15 m: + 0 5 mm
>15 m: + + 0 7 mmThese values apply to wagons with no design camber If design requirements exist, the data in the drawing shall prevail.
Distance between the centre of the buffer mounting drilling pattern and the main reference axis of the wagon.
The distancey8from the centre of the buffer mounting drilling pattern to the main reference axis of the wagon is measured at the measuring points 1R, 2R, 1L, 2L (see Figure 16).
Distance between the centre of the buffer mounting drilling pattern and the lower surface of the underframe bolster.
Distance between the centre of the coupler and the lower surface of the underframe bolster.
The distance between the coupler's center and the lower surface of the underframe bolster is measured in the operational position of the underframe at the front edge of the headstock, specifically at measuring points 1R, 2R, 1L, and 2L (refer to Figure 18).
The centre of the coupler is marked by 2 clearly visible permanent marks in the coupler seat.
The deviation from squareness of the headstock x16 in the buffer support plate area is assessed in relation to the upper edge of the longitudinal members at measuring points 1R, 2R, 1L, and 2L, as illustrated in Figure 19.
The measured length is the height of the buffer support plate G.
Limit deviation for squareness forx16:±1 mm relative to G.
Measurement of the distortion without upper friction plates.
To measure accurately, position the wagon in an unrestrained 3-point support setup, with one end supported at two equidistant points from the main reference axis, while the other end rests on a point along the main reference axis of the wagon.
The distortion shall be measured in the area of the friction plate It is carried out on the welded wagon prior to placing it on the bogies.
The deviation from flatness (distortion) z9 of the supporting surfaces of the side friction plates are measured (see Figure 20).
Measurement of the distortion with upper friction plates.
To measure accurately, position the wagon in an unrestrained 3-point support setup, with one end supported at two equidistant points from the center line, while the other end rests on the center line of the wagon.
The distortion shall be measured in the area of the friction plate It is carried out on the welded wagon prior to placing it on the bogies.
The deviation from flatness (distortion) z10 of the supporting surfaces of the side friction plates are measured (see Figure 21).
Distance between the upper surface of the friction plate and the lower surface of the underframe bolster.
The distance z11 between the upper surface of the friction plate and the lower surface of the underframe bolster is measured at measuring points 1R, 2R, 1L and 2L (see Figure 22).
Position of the friction plates in the horizontal plane in the transverse direction of the vehicle.
Position of the friction plates in the horizontal plane in the longitudinal direction of the vehicle.
The parallelism z13between the friction plate and the horizontal plane in the longitudinal direction of the vehicle is measured at measuring points 1R, 2R, 1L and 2L (see Figure 24).
The measured length is 500 mm.
Limit deviation forz13:≤ 2 over 500 mm
Distance between the side bearers and the friction plates.
The limit deviations shall be fixed in accordance with the basic type of friction elements as shown in one of the following figures.
1 Centre of the friction plate,
The distancez16 between the friction plate and fixed side bearer on each side is measured at each end of the wagon (see Figure 25).
The distances z17.1 and z17.2 between the friction plate and elastic side bearer on each side are determined at each end of the wagon (see Figure 26).
Measurement of the body without bogies with regard to critical heights and half width dimensions from the gauge reduction calculation.
NOTE Vehicles ought not to exceed the gauge for which they were designed.
Heights of the centre of the buffers above the top of the rail (SO).
The distances z14 between the centre of the buffers and the top of the rail (SO) are measured (see Figure 28).
Z14is measured on level track near the buffer head.
Heights of the centre of the coupler above the top of the rail (SO).
The distancesz15of the centre of the coupler above the SO are measured on level track at the visible permanent mark (see Figure 29).
Measurement of the body with bogies with regard to critical heights and width dimensions from the gauge reduction calculation.
Annex A features a control sheet form designed for documenting individual measuring processes, grounded in practical experience This form is essential for recording measured results, with Table A.1 providing dotted lines in the “Measuring point/nominal dimension” column for noting nominal dimensions from the drawings Additionally, the columns for “Actual limit deviations at the designated measuring points” allow for the documentation of established limit deviations or tolerances, facilitating statistical assessment.
Dimensions in mm Actual limit deviations or tolerances at the designated measuring points
Measuring process Measuring point nominal dimension
3 Distance between the centres of the pivots x2
4 Difference in length of even overhangs x3 < 5 R
5 Straightness of the outer edge of the longitudinal members in the y direction y1 5 L R
6 Distance of the longitudinal members from the main reference axis of the wagon y2 2 + 3 − L R
7 Squareness of the headstocks to the main reference axis of the wagon x4 < 5 relative to of C L
8 Flatness of the underframe bolster in the area of the underframe pivot support z1 to 500 < 2 z2 < 2 R
9 Flatness of the friction plate supports to 500 L
10 Position of the underframe pivot relative to the friction plate mounting drilling pattern x6 2 optional R
11 Distance of the friction plate mounting drilling pattern y3 ± 2 L optional
The squareness of the friction plate mounting drilling pattern is measured at 12 points, with a tolerance of x7 Additionally, the height difference between the ends of the housings and the reference plane is assessed at each end of the wagon, ensuring that the measurement remains below z3 < 4.
The symmetrical deviation between the housings and the main reference axis of the wagon must be less than 4 The distance between the traction stop and the impact stop should be maintained within ±2 Additionally, the distance from the traction stop to the contact face of the buffer mounting must also adhere to a tolerance of ±2 The distance between the stop strip and the traction stop is required to be within ±2, while the distance from the contact face of the buffer mounting to the stop strip should be controlled within a tolerance of ±0.3 Furthermore, the depth of the locating area for the support must be within ±2, and the horizontal deviation from rectangularity should not exceed 1.5.
Dimensions in mm Actual limit deviations or tolerances at the designated measuring points
Measuring process Measuring point nominal dimension
− + 0 4 k) The distance z 4 between the centre of the housing and the front cover plate or the front baseplate z4
14 l) The distance z 5 between the centre of the housing and the rear cover plate and rear baseplate z5
15.1 Deviation of all the longitudinal members from straight in the z direction at the ends of the wagon z6 ± 5 L z6.2 < 15 m + 0 5 R
15 15.2 Deviation of all the longitudinal members from straight in the z direction at half the member length > 15 m
16 Distance between the centre of the buffer mounting drilling pattern and the main reference axis of the wagon y8
17 Distance between the centre of the buffer mounting R drilling pattern and the lower surface of the underframe bolster z7
18 Distance between the centre of the coupler and the R lower surface of the underframe bolster z8 ± 4 L
19 Squareness of the headstock x16 < 1 relative to G L
20 Measurement of the distortion without upper friction plates z9