EP1836018A1

EP1836018A1 - Underfloor wheel set lathe for machining wheel sets of railway vehicles

Info

Publication number: EP1836018A1
Application number: EP06700495A
Authority: EP
Inventors: Theo Nijssen; Hans-Joachim Reiche
Original assignee: Hegenscheidt MFD GmbH and Co KG
Current assignee: Hegenscheidt MFD GmbH and Co KG
Priority date: 2005-01-10
Filing date: 2006-01-07
Publication date: 2007-09-26
Also published as: DE102005001220A1; JP2008526533A; KR100981444B1; WO2006072584A1; US20080216621A1; CN101119818A; DE102005001220B4; KR20070089255A

Abstract

The invention relates to an underfloor wheel set lathe for machining the profile of the wheels (8, 9) of wheel sets for railway vehicles, said wheel sets being rotatably mounted outside the wheels in axle bearing housings. The underfloor wheel set lathe comprises a lathe frame (10), two supports that are mounted on the lathe frame, are movable in the X direction and Z direction of the underfloor wheel set lathe, and are embodied so as to accommodate machining tools, lead-in rails (5, 6) which can be removed during machining and are used for positioning the wheels (8, 9) above the tools, clamping elements for gripping the axle bearing housings, and pairs of rollers for each wheel (8, 9) in order to raise, drive, and lower the wheel set before, during, and following the machining process. The inventive underfloor wheel set lathe is configured to as to be incorporated into a maintenance pit (1) for railway vehicles and comprises a lathe frame (10) whose vertical height (11) is smaller than the depth (2) of the maintenance pit (1). One lateral recess (15, 16) is provided in the maintenance pit (1), in the area of the two faces of the lathe frame (10), in order to accommodate the clamping elements, drives for the pairs of rollers, and the removed lead-in rails (5, 6).

Description

Underfloor wheel lathe for machining wheel sets for railway vehicles

The invention relates to an underfloor wheel lathe for machining wheelsets for railway vehicles according to the preamble of the main claim.

Underfloor wheelset lathes are preferably used for reprofiling the wheels of wheelsets, the wheelsets remain installed in the railway vehicle and the railway vehicle on the

Underfloor wheel lathe is rolled. As a result, the underfloor wheel set lathes are inserted into the workshop track where the reprofiling is to be performed. They usually have a vertical height between 2 and 2, 5 meters and require a correspondingly deep pit below the workshop track. There is also a solid foundation for picking up the high machining forces and avoiding vibrations during machining.

The deep pit and the large foundation are correspondingly complex and expensive and require special measures for the installation of an underfloor wheel lathe. There has therefore been no lack of considerations to reduce the requirements for an underfloor wheel lathe. For example, from European Patent Application 0 557 231 A2 a

Underground wheel lathe for railway wheels known to reduce their weight between 80 to 85% compared to conventional underfloor wheel lathes is (see column 2, lines 13 to 20). From the reduction of the weight of the known

Unterflurradsatzdrehmaschine results but not necessarily that the well-known

Unterflurradsatzdrehmaschine also entails a reduction in expenses, which are required for the installation of an underfloor wheel lathe.

This results in the task for the invention to propose an underfloor wheel lathe, which can be arranged without significant additional expenses in the inspection shaft, which is usually present in factory workshops for inspection and implementation of minor work on railway vehicles.

According to the invention this object is achieved by an underfloor wheel lathe, which is suitable for installation in a Revisϊonsschacht ^"" and a ^" Machineήbett having the vertical height is less than the depth of the inspection shaft, wherein in the region of the two end faces of the machine bed depending on a lateral recess in Inspection shaft is located to accommodate the wheel set tensioners, the roller pair drives and the remote runners.

Provided is a pair of rollers for each wheel of the wheel set with two individual rollers having a lateral distance from one another, which is slightly larger than the depth of a support of the machine and the associated tools in the direction of the inlet rails. The rollers of the roller pair are used for lifting, driving and re-setting of the wheelset before, while or. after processing. After the wheelset is rolled into the machine, it is supported by the rollers which at the same time raise it in a vertical direction. As a result, the inlet rail is free and can be pulled out laterally. However, the section of the inlet rail intended for withdrawal is only as wide as required for the depth of the support and the processing tools located thereon. As a result, the lateral distance of the individual rollers of the roller pair is also not substantially greater than the depth of a support and the associated tools in the direction of the inlet rails.

Each of the runners of a workshop track has a removable portion whose length is slightly greater than the depth of a support and the associated tools in the direction of the inlet rails. In this way, the interruption of the workshop track is limited by the inlet rails to the underfloor wheel set turret to ^" the ^" smallest ^" value that is required so that the tools can make the reprofiling on the circumference of the wheel disc.

The supports with the tools are provided centrally between the wheel discs of the wheelset. They have in the direction of the inlet rails on lateral extensions, which can be kept so flat that they can easily intervene in the required by the removal of the required for the inlet section of the workshop track.

The individual roles of each pair of rollers are rotatably mounted in rockers whose pivot axes parallel to the longitudinal axis of the wheel and in a radial T / EP2006 / 000078

Distance from it, which is larger - than the radius of a wheel of the wheelset.

The vertical height of the bed

Underfloor wheel lathe is between 600 mm and 1,000 mm and is preferably 800 mm. In contrast, the inspection shaft of a workshop track has a typical depth of about 1,600 mm

Rail top. Due to the reduced height of the bed of the underfloor wheel lathe, the possibility is created that the costs incurred during machining chips even under the bed of

Underfloor wheel lathe can be collected. Similarly, with the vertical height of the lateral recesses, which have to be necessarily provided in the inspection shaft, the clamping bodies for the axle boxes and the ^actuators' for ^"dϊe ^{~"^"RδTIeh"} accommodate ^{^"." ~ "Weϊt} ^~ ere control devices, such as For example, a control cabinet and a hydraulic power unit, in addition to the underfloor wheel lathe can be easily arranged on the workshop floor, since they usually have connection with the underfloor wheel lathe only via cables and wires.

The width of the lateral recesses of the inspection shaft requires no special measures, but it is in a range between 600 mm and 1,000 mm, preferably 800 mm, measured from the adjacent inlet rail. The same applies to the depth of the lateral recesses measured in the direction of the workshop track. The invention will be described in more detail with reference to an exemplary embodiment.

In each case, in a greatly simplified, schematic and not to scale representation, the figures show

- Fig. 1 shows a section through an underfloor wheel lathe through the longitudinal center,

- Fig. 2 a support with longitudinal slide and cross slide,

- Fig. 3 shows the support of FIG. 2 in side view,

- Fig. 4 the mounting of the rockers for the rollers of a roller pair,

- Fig. 5 the swingarm design in plan view,

- Fig. 6 the assembly, crossbeam and support for the roller swing,

- Fig. 7 a retractable probe,

- Fig. 8 the lifting of a wheel set by the rollers,

- ^" FigT 9 ^~ e ^" i ^" eriifferhbareri section ^""of the ^" EInT-Aufschiene,

- Fig. 10 the role support and the drive of a wheelset in the side view and

- Fig. 11 the roller support and the drive of a wheelset in plan view.

A inspection shaft 1 has a vertical depth 2, which is between 1,000 mm and 1,600 mm, below the workshop floor 3. In height of the workshop floor 3 is the upper edge 4 of inlet rails 5 and 6 which form the workshop track 7. A wheel set (not shown) is rolled with its two wheels 8 and 9 on the workshop track 7 via a Unterflurrads.atzdrehmaschine, of which in Figure 1, only the outline of the bed 10 is indicated by broken lines. The vertical height 11 of the bed 10 is between 600 mm and 1,000 mm, preferably 800 mm. The bed 10 sticks out j eder direction laterally beyond the inlet rails 5 and 6 addition. The protruding parts of the bed 10 are designated by the numbers 12 and 13. The vertical depth 14 of lateral recesses 15 and 16 of the inspection shaft 1 is slightly larger than the vertical height 11 of the bed 10 and its protruding parts 12 and 13. The longitudinal center of the inspection shaft 1 is denoted by the numeral 17 and the two digits 18 and 19 In addition to the underfloor wheel lathe are located on the workshop floor 3 and outside the inspection shaft 1 nor a cabinet 20 and a hydraulic unit 21, which are provided to control the machine. Movable on the bed 10 in the X and Z directions are two supports 22, of which only the right-hand side is shown in FIG. The support 22 has a ^"lateral ^arm" 23 ^{^"," "which} comprises ^in" the direction of the projecting part 13 and working tools 24 carries, which are provided for re-profiling of the wheel disc. 9 A

Side guide roller 25, which is rotatably mounted on the bed 10 or on the support 22, supports the wheel disc 9 from the inner wheel side 26 ago. On the side of the bed 10 is a frame 27, in which an organ 28 is mounted, which is provided for clamping the wheelset on the Achslagergehäusen 65 (Fig. 8).

Sliding in both directions 29 slides on. The top of the frame 27, a removable portion 30 of the inlet rail 5. To drive the support 22 in the directions of movement X and Z, a drive 31 with countershaft 32 is also provided. The drive 31 of the Supports 22 in the direction of movement Z is positioned on the outside of the bed 10.

After the lateral removal of the removable portion 30 from the inlet rail 5, the wheel 9 of the wheel is supported on rollers 33 and 34 of a pair of rollers. The rollers 33 and 34 have a lateral distance 35 from each other, the depth in the direction of the inlet rail 5 is sufficient to let the boom 23 of the support 22 with the processing tools 24 therethrough. The rollers 33 and 34 belong to a pair of rollers of which the wheel 9 lifted from the inlet rail 5, set in rotation and can be lowered back to the inlet rail 5.

As shown in Figure 4, the two rollers 33 and 34 j in each case in rockers 36 and 37 mounted, in turn ^{^"to"} the S ^{'chwehkachsen} ^{^"38"} ^uri' d ^{^"3"} 9 ^"pivoted aid of a drive 40 can . The pivot axes 38 and 39 extend in the Z-axis of the machine and are parallel to the axis of rotation 41 of the wheelset. They have from the rotation axis 41 a distance which is greater than the radius of one of the wheels 8 or 9. The rockers 36 and 37 are mounted in the frame 27.

In the plan view of Figure 5, one first sees the two rollers 33 and 34 with their mutual distance 35. A wheel 9 of the wheelset is brought into the working position between the two rollers 33 and 34. Each of the two rollers 33 and 34 is in one of the wings 36 and. 37 rotatably mounted. To drive the rollers 33 and 34, motors 42 and 43 with corresponding rims 44 and 45 are provided. Between the wings 36 and 37, the clamping member 28 is arranged. In the figure 5 EP2006 / 000078

Particularly well recognizable, the wheel 9 is supported by the two rollers 33 and 34 in the region of its outer edge 46. The swing arm drive 40 with its extension rod 47 is provided to move the two rollers 33 and 34 via the respective rockers 36 and 37 on circular arcs 48 and 49. As part of this kinematics, the rollers 33 and 34 can be lowered by the drive 40 and its push rod 47 to below the top rail 4. In this position, the wheelset can roll into the underfloor wheel lathe. By actuating the drive 40, the two rollers 33 and 34 are then moved upwards on their respective circular arcs 48 and 49. They grasp the wheel 9 of the wheelset in the region of its front end 46 and lift the entire wheel set until it reaches a position as shown in FIG. In this working position, the removable portion ^{^"30"} is first made of the ^{^"rail" ^"Er"} heraϊϊsgez ^{^"ogen."} Üef ^'wheel is fixed by the Einspannorgan 28th In the gap 50 between the two rollers 33 and 34 moves the lateral arm 23 of the support 22 with the

Processing tools 24 a. Of the motors 42 and 43, the rollers 33 and 34 are rotated and take the wheel 9 of the wheel with. In this case, the reprofiling of the wheel 9 takes place by the processing tools 24.

FIG. 6 shows the assembly of transverse beams and supports for the roller rockers 36 and 37. Each of the rockers 36 is initially rotatably mounted in a pivot axis 38. Each rocker 36 resp. 37 has four individual swing arms 51, 52, 53 and 54. Bushings 55 and 56 ensure a low-friction mounting of the rockers 36 and. 37th FIG. 7 once again shows the support 22 with its lateral arm 23. An extension 57 at the end of the boom 23 carries the machining tools 58 and 59. The machining tools 58 and 59 are turning tools. While the turning tool 58 is preferably provided for the machining of the running surface of the wheel 9, the turning tool 59 is preferably used for the machining of the wheel flange of the wheel 9. In addition, a probe 60 is pivotally mounted on the support 22. The pivoting direction is indicated by the arrow 61. When swiveling the probe ^'60 about the pivot axis 62 passes a pair of measuring rollers 63 for engagement with the tread 64 of the wheel 9. In this way, the working result is controlled. After completion of the measurement, the probe 60 moves back to the rest position, as shown in Figure 7.

FIG. 8 shows the process of raising the wheelset again in the front view. The wheel is mounted with its stub axles 67 in Achslagergehäusen 65. The wheel 9 of the wheelset is supported in the front portion 46 of its tread 64 by the roller 34. In the image plane behind the roller 34, the lateral arm 23 of the support 22 projects into the gap 50 between the rollers 33 and 34. At the same time, the clamping device 28 is also indicated.

FIG. 9 shows the removable portion 30 as provided in the rail 5. The removable portion 30 has the shape of a tee and has a bore 66. In the bore 66 engages a sliding member (not shown), which is the removable portion 30 laterally pulled out of the rail 5 and able to reinsert.

A lateral section through the roller support of the wheel 9 is shown in FIG. 10. The wheel 9 rolls on the rail 5 into its machining position on the underfloor wheel lathe. In the direction of its axis of rotation 41 of the wheelset is guided by the guide roller 25 axially. In the front region 46 of the running surface 64 of the wheel 9, the support is provided by the roller 34. Thus, the roller 34 can be brought as far as possible to the rail 5, the rail 5 has a lateral recess 68. What was said for the roller 34 in FIGS. 10 and 11 applies equally to the roller 33. The same applies to the rollers (not shown) opposite the rollers 33 and 34 for the machining situation of the wheel 8.

LIST OF REFERENCE NUMBERS

1 inspection shaft

2 vertical depth

3 workshop floor

4 top edge

5 inlet rail

6 inlet rail

7 workshop track

8 wheel

9 wheel

10 machine bed

11 vertical height

12 protruding part

13 protruding part

14 depth

15 lateral recess

16 lateral recess

17 longitudinal center

18 lateral limit

19 lateral limit

20 control cabinet

21 hydraulic unit

22 Support

23 lateral boom

24 machining tool

25 leadership role

26 wheel inside

27 frame

28 clamping device

29 shift direction

30 removable section

31 drive 32 counterparts

33 role

34 roll

35 distance

36 swingarm

37 swingarm

38 pivot axis

39 pivot axis

40 drive

41 axis of rotation

42 engine

43 engine

44 countershaft

45 countershaft

46 outer edge

47 push rod

48 Arc τ9 ^~ Kfe ^" ϊ ^" sbogelf

50 gap

51 swing arm

52 swing arm

53 Swing arm

54 swing arm

55 bearing bush

56 bearing bush

57 extension

58 turning tools

59 turning tools

60 probes

61 pivoting direction

62 pivot axis

63 measuring rollers

64 tread Axle bearing housing Bore Axle side recess

Claims

06th January 2006

P A T E N T A N S P R E C H E

Underfloor wheel lathe for machining the profile of the wheels of wheelsets for railway vehicles, the wheelsets are rotatably mounted in axlebox outside the wheels, with a machine bed, two supports mounted on the machine bed, which can be moved in the X and Z direction of the underfloor wheel lathe and for receiving Tools are provided for machining, runners, which are removable during machining, for positioning the wheels over the tools, clamping members for engaging the axle housings, pairs of wheels for each wheel for lifting, driving and lowering the wheelset before, during or. after processing, d a u re c i o n c e s that

- The underfloor wheel lathe for installation in a inspection shaft (1) is intended for railway vehicles and

- Has a machine bed (10) whose vertical height (11) is less than the vertical depth (2) of the inspection shaft (1), wherein

- In the region of the two end faces of the machine bed (10) each have a lateral recess (15, 16) in the inspection shaft (1) for receiving the clamping members (28) of the drives for the pairs of rollers 6000078

15

(33, 34) and the remote inlet rails (30).

2. Underfloor machine according to claim 1, characterized in that the individual rollers (33, 34) of a pair of rollers have a lateral distance (35) from one another, which is slightly greater than the depth of a support (22) and the associated tools (24) in Direction of

Inlet rails (5, 6).

3. Underfloor machine according to one of claims 1 or 2, characterized in that the inlet rail (5, 6) has a removable section

(30) whose length is slightly greater than the depth of a support (22) and the associated tools (24) in the direction of the inlet rails (5, 6).

4. Underfloor machine according to claim 3, characterized in that the removable portion (30) of the inlet rail (5, 6) in the direction of the recesses (15, 16) of the inspection shaft (1) laterally next to the j eweilige inlet rail (5, 6) pulled out is.

5. Underfloor machine according to claim 2, characterized in that the individual rollers (33, 34) of a pair of rollers in rockers (36, 37) are rotatably mounted, the pivot axes (38, 39) parallel to the longitudinal axis (41) of the wheelset and in a radial Distance therefrom, which is greater than the radius of a wheel (8, 9).

6. Underfloor machine according to claim 1, characterized in that the vertical height (11) of the bed (10) is between 600 mm and 1,000 mm, preferably 800 mm.

7. Underfloor machine according to claim 1, characterized in that the vertical height (11) of the lateral recess (15, 16) of the inspection shaft (1) is between 600 mm and 1000 mm, preferably 800 mm.

8. Underfloor machine according to claim 7, characterized in that the width of the lateral recess (15, 16) of the inspection shaft (1) between 600 mm and 1,000 mm, preferably 800 mm, measured from the adjacent inlet rail (5, 6) -.

9. Underfloor machine according to claims 3 and 4, d a d u r c h e c e n e c e s in that the supports (22) close to the longitudinal center (17) of the inspection shaft (1) are arranged and lateral arms (23), the adjacent inlet rail

(5, 6) and are suitable for receiving the tools (24) and for engaging in the gap (35) formed in the run-in rail (5, 6) after the removal of the removable portion (30).