CN1293632A

CN1293632A - Cross anchor railway bogie

Info

Publication number: CN1293632A
Application number: CN99804064A
Authority: CN
Inventors: 赫伯特·谢费尔
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-11-26
Filing date: 1999-11-25
Publication date: 2001-05-02
Anticipated expiration: 2019-11-25
Also published as: WO2000030914A1; SE520878C2; CN1110423C; ZA200002489B; SE0002746D0; AU1173100A; SE0002746L

Abstract

The present invention relates to a cross-anchor railway truck (10). The bogie (10) has a generally U-shaped sub-frame (28) connected to the axlebox (18) of the bogie. The sub-frames themselves are interconnected by cross anchors (30) located substantially on the diagonals (36) of the bogie. The cross anchor (30) is connected to the U-shaped sub-frame (28) at a connection point (58) located substantially in the plane (60) of the truck axle (24) so that the cross anchor itself lies substantially in the plane.

Description

Cross-anchor railway bogie

The background of invention

The present invention relates to a cross-anchor railway bogie.

Railway bogie with taper or curved wheel week is taken turns the difference owing to the theoretical running radius of tire of taking turns right inside and outside wheel, thereby has self-align ability on warp rail.But for dynamicstability, wheel promptly allows to have flexibility in horizontal surface by the flexibility of carefully selecting suspension, to guarantee enough turning performances and stability to being hanging on the bogie truck in such mode.Though high flexibility can be improved turning performance longitudinally, it has reduced the between centers shear rigidity, and then the swing stability when having reduced high speed.Especially true in the situation of three-member type bogie truck, wherein being connected between bogie side frame and the bolster adopted drag wedge, its wheel of bogie truck between limited shear rigidity only is provided.

For the between centers shear rigidity of higher level is provided, common way is at least in the narrow gauge bogie truck, promptly in the bogie truck that travels on 1067mm narrow gauge track, adopts between the relative axle box in diagonal angle the so-called cross-anchor of bonded assembly obliquely.Because space constraint, U-shaped subframe are connected on the right axle box of wheel and cross-anchor is used the bight of pin hinge to subframe.

Cross-anchor need be pinned to the bight of U-shaped subframe, because adopt this layout in the bogie truck fitting process, to insert cross-anchor by the normal window on truck side frame.

Though above-mentioned cross-anchor design can suitably be operated on the narrow gauge bogie truck, but it has several intrinsic deficiencies when being applied to the bogie truck of standard gauge (1435mm) or broad gauge gauge (1676mm), and therefore this design is restricted in these are used.Can notice known cross-anchor design, the particularly following shortcoming in standard and the application of broad gauge gauge:

1. although cross-anchor is pinned to the bight of U-shaped subframe in narrow gauge is used, this is a N/R in standard and the application of broad gauge gauge.One of reason is that the length of the increase of cross-anchor has increased its trend crooked under the compressive load that is acted on.The increase of angle can increase the power that acts on the cross-anchor and aggravated this problem owing to cross-anchor and vertically, and wherein cross-anchor and angle between vertical are that increase because of the bogie truck width increases.

2. in traditional design, subframe is bifurcated at the point of connection place of cross-anchor, to hold the end of cross-anchor.The end of cross-anchor by cylindrical pin by pin joint on subframe, wherein cylindrical pin elastomeric, normally move in the elastic caoutchouc lining.Because the bight of subframe near the limited brake shoe brake cheek in space, therefore needs cross-anchor to be positioned at the plane that the plane with axletree itself separates.

Act on coupling on the cylindrical pin causes lining owing to this biasing edge abrasion.Though these wearing and tearing can tolerate that in narrow gauge is used bigger power in standard and the application of broad gauge gauge in the cross-anchor and the braking force that increases can cause unacceptable abrasion factor in this application.

3. when using traditional " aerofoil profile " axle box, each U-shaped subframe and axle box assembly directly rest on the right pivot coro bearng of wheel, have increased the non-suspended mass inertia deflecting torque right with wheel thus.This has an astable effect.In standard and broad gauge gauge were used, this effect was more harmful, because wheel is to becoming weight, the U-shaped subframe is bigger, and must make firmlyer for the rigidity of same degree.

The present invention is devoted to address these problems and provide a cross-anchor bogie truck of the standard of being applicable to and the application of broad gauge gauge.

The general introduction of invention

According to the invention provides a kind of cross-anchor railway bogie, it comprises the roughly subframe of U-shaped, this subframe is connected on the axle box of bogie truck and by cross-anchor and interconnects, wherein cross-anchor acts on the diagonal line of bogie truck and the point of connection place in being located substantially on the bogie car axis plane is connected on the U-shaped subframe basically, thereby cross-anchor itself is located substantially in this plane.

Usually, cross-anchor is connected on the U-shaped subframe at the ball-bearing casing place, and ball-bearing casing is arranged on the lower end to the pin of lower cantalever by subframe supporting.

The term that uses in this specification sheets " diagonal line " is meant planar an imaginary line that extends diagonally, and its mediad of taking turns a right axle box on bogie truck one side another on the bogie truck opposite side taken turns right axle box central authorities and extended.

Further according to the present invention, each U-shaped subframe comprises two L shaped, and each the first arm of L shaped is connected on the axle box and this another i.e. laterally bolster extension of contiguous bogie truck of second arm of L shaped; Also comprise the device that is used for interconnecting rigidly these second arms of L shaped.In one embodiment, one L shaped second arm ends at a crotch that is limited by upper and lower element, and another second arm of L shaped comprises an extension that is accommodated between the inherent upper and lower element of this bifurcated, and be connected on the upper and lower element in position spaced by the pin to lower cantalever, the end of cross-anchor is connected on the described pin.

In another embodiment, second arm extends beyond the point of connection of cross-anchor, and the end of a connecting rod is non-rotatably connected on the end of arm, thereby L shaped is connected mutually rigidly.

Cross-anchor railway bogie of the present invention is designed to the bogie truck of a standard gauge or the bogie truck of a broad gauge gauge usually.This bogie truck can be a three-member type bogie truck, and it has a central bolster of being installed on the bogie side frame, and wheel is to being suspended on the bogie side frame at aerofoil profile axle box place, and the end of U-shaped subframe is connected on the aerofoil profile axle box.Perhaps, this bogie truck can be a three-member type bogie truck, and it has a central bolster of being installed on the bogie side frame, and bogie side frame is hung up on the pivot coro bearng through bearing installation seat and shear pad, wherein shear pad tilts with respect to perpendicular line, and the end of U-shaped subframe is connected on the bearing installation seat.

In a preferred embodiment, bogie truck comprises the deflection restraint device, and it provides a constraint to the right relative yaw motion of the wheel of bogie truck, and this deflection restraint device is operated in a mode of successively decreasing.

This deflection restraint device is taken turns each right end for each and can be comprised: a coil spring, this spring are reversed ground prestrain and are had corresponding the inner and outer end; At an element that acts between the inner of a U-shaped subframe and each spring and the element that between the outer end of an axle box or bearing installation seat and each spring, acts on; Spring is arranged to for relatively little inclined to one side wheel flutter applying a big relatively deflection constrained force, after this for ensuing inclined to one side wheel flutter to applying a relatively little deflection constrained force.

Brief description of the drawings

Only with reference to accompanying drawing the present invention is described in more detail below by the mode of example.

Among the figure:

Fig. 1 represents the top perspective view according to the three-member type cross-anchor bogie truck of an automatic steering of the present invention;

Fig. 2 representation class is similar to the view of Fig. 1, but has saved a bogie side frame of bolster and bogie truck;

Fig. 3 represents the partial side view of a partly cut-away, and L shaped axle box of expression U-shaped subframe connects;

Fig. 4 represents vertical view of axle box bonded assembly one partly cut-away;

Fig. 5 represents the planar view that a part of bogie truck dots;

Fig. 6 represents the detailed view of cross-anchor bonded assembly one embodiment;

Fig. 7 represents the partial plan layout of another embodiment of cross-anchor bonded assembly;

One of the embodiment of Fig. 8 presentation graphs 7 analyses and observe detailed view;

Fig. 9 represents according to the cross-anchor railway bogie that successively decreases the deflection restraint device that is equipped with of the present invention;

Figure 10 represents a lateral plan of layout shown in Figure 9;

Figure 11 presentation graphs 9 be arranged in details in the interior views;

Figure 12 presentation graphs 9 be arranged in details in the external view; With

Figure 13 represents the partial side view of another embodiment of cross-anchor railway bogie, and this bogie truck comprises an axle box suspension of revising.

The description of preferred embodiment

With reference to Fig. 1, a three-member type automatic steering cross-anchor bogie truck 10 according to the present invention has a horizontal bolster 12 and bogie side frame 14, wherein takes turns being hung up on the bogie side frame 14 at axle box housing 18 places 16.

Also with reference to Fig. 3, each axle box housing 18 comprises and holds an adapter 20 that is used for taking turns to the pivot coro bearng 22 of 16 axletree 24.The bogie side frame of bogie truck is suspended on the right elastic element 26 of wheel, and this elastic element is in vertical direction, the horizontal and vertical elasticity that provides.Bogie truck 10 also comprises pair of U-shaped subframe 28, and its end is connected on the axle box housing 18, and cross-anchor 30 intersects (referring to Fig. 2) up and down mutually and is pivotally connected on the U-shaped subframe 28 in the geometric centre of bogie truck.

So far described bogie truck 10 is traditional basically.But though in traditional three-member type cross-anchor bogie truck, cross-anchor is connected to the bight of U-shaped subframe usually, and shown cross-anchor 30 is to be connected on the subframe 28 at point of connection 32 places that are positioned at 34 inboards, bight.This layout makes cross-anchor be positioned in planar view on the diagonal line of bogie truck.In Fig. 5, between the bight of the relative axle box housing 18 in diagonal angle, extend with numeral 36 diagonal lines of representing.As in the traditional design, cross-anchor 30 provides the between centers shear rigidity in the turning process bogie truck 10.

Each U-shaped subframe 28 comprises two L shaped 38.Each arm 40 of L shaped is whole longitudinal extension spares of corresponding axis tank shell 18, and this can find out from Fig. 1,2,3 and 5 significantly.Each another arm 42 of L shaped is 34 laterally extensions from the bight, are adjacent to and are roughly parallel to bolster 12.Especially with reference to Figure 4 and 5, can find out L shaped 38 and extend and cross corresponding actuator assembly 46 then around corresponding wheel 44.

In the embodiment of Fig. 1～6, one L shaped 38 arm 42 of each subframe 28 has the upper and

lower element

48 and 50 that limits a bifurcated in the end of this arm.The arm 42 that another of same subframe 28 is L shaped has holistic narrower extension 52, and this extension 52 adopts in the form and the bifurcated between upper and

lower element

48 and 50 of a tongue.

Normal pin

54 and 56 interconnects L shaped 38 of each subframe rigidly, and provides to pivot for the end of cross-anchor 30 to connect.With reference to Fig. 4, pin 54 be press-fit into upper and lower element 48 with 50 and the opening that aligns of the end of tongue 52 in.Pin 56 is pressed in the opening of the alignment that is assembled to

element

48,50 and arm 42 ends similarly.Adopt this layout, can understand that two L shaped arm 42 is accurately alignd and interconnects rigidly, to form the subframe 28 of rigidity.

Being positioned under the subframe 28, and the end of cross-anchor 30 is connected on the lower end of pin, as shown in Figure 6 with spherical hinge 58

54 and 56 to lower cantalever.Spherical hinge 58 is positioned at the axletree plane 60 of bogie truck, shown in Fig. 3 and 6.Therefore cross-anchor itself is positioned at plane 60.

This structure provides many advantages, particularly when bogie truck 10 is used on the track of standard or broad gauge gauge:

1. because cross-anchor is positioned on the diagonal line 36 of bogie truck, they are considerably shorter than the situation on the bight 34 that is connected to U-shaped subframe 28.This short cross-anchor has in the turning process counter-bending resistance bigger under the compressive load that is acted on.This feature is particularly important in the situation of standard or broad gauge gauge track, because compare with the narrow gauge track, the cross-anchor that is connected on the bogie truck subframe bight this moment will be longer, thereby easier bending.

Hinge 58 and thereby cross-anchor 30 fact and the hinge 58 that are positioned at the plane of axletree be the fact of spherical hinge, can guarantee cross-anchor axially load always, and this cross-anchor can not stand moment of deflection when

54 and 56 stands to shear with braking force.

3. as explained earlier, traditional cross-anchor design has the cross-anchor that is positioned at a plane of departing from the axletree plane, then when bogie truck stands to shear with vertical braking force, can cause by connecting pin to affact couple on the resilient bushing that connecting pin is installed.Result's lining and especially true in the situation of standard and broad gauge gauge track that can wear and tear.And in this case, L shaped 38 three-dimensional bending provides the alerting ability of required degree when cross-anchor connects.Owing to using spherical hinge 58, therefore sell 54 and 56 and itself can have the alerting ability to a certain degree that adapts to shearing and braking force.

Be to be understood that many variations within the scope of the invention all are possible.For example, replace using the above-mentioned layout that in parts, has a bifurcated of the ligule extension that holds another parts to interconnect L shaped, also can use such as an appreciable layout in Fig. 7 and 8.L shaped in this case arm 42 is identical and form forked terminal 70.These are terminal by tandem connecting rod 72 connection rigidly mutually.

54,56 pass terminal 70 with the interior opening that aligns of connecting rod 72.Make end and connecting rod rotatable with respect to

54,56, thus rotatable each other.In the situation of tandem connecting rod 72, be the spring steel rocking pin 76 of the aligned hole by being positioned at connecting rod and sell 54,56 and realize.In the situation of the end 70 of bifurcated, use similar rocking pin 76.Certainly can understand in this arrangement, the end of arm 42 need not be bifurcated and can be solid.

Further improve and be described in Fig. 9～13.Cross-anchor bogie truck of the present invention for example can comprise the deflection restraint device that successively decreases, and it is suitable for providing a constraint of successively decreasing to wheel to 16 yaw motions that stand.Be used for the successively decrease example of deflection restraint device of one of this purpose and be described in Fig. 9～12, it only shows an end that wheel is right.In these figure, represent with identical reference number corresponding to the element of said elements.

The deflection restraint device 80 of successively decreasing shown in Fig. 9～12 uses a coil spring 82, and this spring has external part 84 and 86 and be installed in the housing 88 with pre-stressed state.Elongated end is with respect to the longitudinal extension of bogie truck.The prestress that is acted on is in the twisting states with respect to axial opposed, and is to insert in the housing and realize by spring 82 is resisted against on the inner prestrain retainer 90 (referring to partial sum Figure 11 and 12 of the amplification of Fig. 9) with its inner 84.To have a twisting resistance that reduces coil spring diameter effect then and affact on the outer end 86, up to obtaining a predetermined prestress or a prestrain.By a prestrain retainer 92 that outer end 86 lockings are on the throne then, wherein prestrain retainer 92 for example is fixed on the housing 88 by bolt or welding (not shown).Housing fixes by a mounting structure, can weld or bolted connection on the throne, in the bogie side frame window 93 with the bogie side frame 14 that is fixed to bogie truck.

The design of spring 82 makes that end 84 and 86 is positioned at a vertical plane surface 94 of dividing spring equally when obtaining required preload force.And with reference to Figure 10, the position of the position of housing and spring 82 makes end 84 and 86 be positioned at a horizontal plane 96 that medially passes through trunnion bearing 22, promptly in the horizontal plane of axletree 24.

Cylinder 98,100 is respectively installed on the end 84,86.One inner push arm 102 is fixed on adjacent L shaped 38 and from this extension, and abuts on the internal cylinder 98 with backing plate assembly 104 through wearing and tearing.One outside push arm 106 is fixed on the corresponding axle box housing 18 and from this extension, and abuts on the external roller 100 with backer board assembly 108 through corresponding wearing and tearing.Push arm 102 and 106 by any suitable manner (not shown) for example welding or bolted connection be fixed to L shaped 38 with axle box housing 18 on.

It will be appreciated that the deflection restraint device that successively decreases accordingly is arranged on each and takes turns right adjacent both ends.If to cause inner push arm 102 to press cylinder 98 thereby to press the mode deflection of the inner 84 of spring, then the power on the cylinder will increase the wheel that in use has a deflection restraint device that successively decreases, until the prestrain twisting resistance that reaches on the spring to beginning.Since push arm 102, cylinder 98 and end 84 intrinsic elasticity, the therefore distortion (common 1～2mm) that end 84 will have an a small amount of of being scheduled to when reach the design-calculated preload force.Surpass this distortion if take turns right yaw motion, then inner push arm 102 pushes away reversing increase of prestrain retainer 90 and spring with the inner 84, because outside push arm 106 will break away from and the contacting of external roller 100, make outer end 86 tightly press against on the prestrain retainer 92.But the power that will cause effect between internal cylinder 98 and inner push arm 102 of reversing that increases in the spring only increases slightly.This is because the rigidity of spring is less relatively and the prestrain torsional deflection (being generally the 100mm order of magnitude) of spring is more much bigger than the additional deformation (only being the 10mm order of magnitude usually) of maximum possible.Power transmission that is obtained thereby characteristic for successively decreasing.

Be to be understood that if deflect in opposite mode, then outside push arm 106 will press external roller 100 and when having enough yaw motions inner push arm will break away from and the contacting of internal cylinder 98.

The specification sheets examining patent application PCT/IB99/01383 of applicant's common submission has been described various types of force transfering devices, it can be used as, and the deflection restraint device that successively decreases is next to retrain the right deflection of wheel in a mode of successively decreasing, thereby a bogie truck of the high speed swinging stability that has enhancing is provided.Also can understand the above-mentioned deflection restraint device 80 that successively decreases can be similarly as the force transfering device that has a decline characteristic, and a suitable device of describing in examining patent application of aforementioned common submission also can replace retraining 80 and uses.But believe that it will be favourable retraining 80 in this application,, can be installed in the bogie side frame window 93 with an easy mode and need safeguard hardly with it because its structure is simple relatively.

In the alter mode of deflection restraint device 80 of successively decreasing, the push arm 102 of rigidity and 106 can replace the tensioning on the end 84,86 of spring 82 of described belt or rope with belt or rope.

Figure 13 represents another modification within the scope of the present invention.Embodiment shown in Fig. 1 adopts so-called " aerofoil profile " axle box 18, wherein takes turns each right end at each and has an adapter 20, and it rides and holds pivot coro bearng 22.Such axle box has been made more detailed description with reference to Fig. 5 and 6 examining patent application PCT/IB99/01383 of applicant's common proposition.

Take turns each right end at each, replace Figure 13 embodiment " aerofoil profile " axle box comprise such axle box, it comprises a bearing installation seat 110, this mount pad has in pairs the bevelled rubber shear pad 114 of (representing with numeral 112), and its mode is similar in conjunction with Figure 25 examining patent application of aforementioned common proposition described.In this case, the end of L shaped 38 arm 40 of subframe 28 will be soldered on the bearing installation seat 110 at interior location.

Compare with " aerofoil profile " axle box of early stage description, believe that it will be more excellent using the axle box of type shown in Figure 13, at least in some cases, because such structure can reduce the total mass of the subframe/axle box assembly that directly is pressed against on the pivot coro bearng.

Claims

1. cross-anchor railway bogie, it comprises the roughly subframe of U-shaped, this subframe is connected on the axle box of bogie truck and by cross-anchor and interconnects, wherein cross-anchor acts on the diagonal line of bogie truck and the point of connection place in being located substantially on the bogie car axis plane is connected on the U-shaped subframe basically, thereby cross-anchor itself is located substantially in this plane.

2. a kind of cross-anchor railway bogie as claimed in claim 1 is characterized in that: cross-anchor is connected on the U-shaped subframe at the ball-bearing casing place.

3. a kind of cross-anchor railway bogie as claimed in claim 2 is characterized in that: ball-bearing casing is arranged on the lower end to the pin of lower cantalever by subframe supporting.

4. as the described a kind of cross-anchor railway bogie of arbitrary aforementioned claim, it is characterized in that: each U-shaped subframe comprises two L shaped, and each the first arm of L shaped is connected on the axle box and this another i.e. laterally bolster extension of contiguous bogie truck of second arm of L shaped; The device that also comprises second arm that is used for interconnecting rigidly L shaped.

5. a kind of cross-anchor railway bogie as claimed in claim 4, it is characterized in that: one L shaped second arm ends at a crotch that is limited by upper and lower element, and another second arm of L shaped comprises an extension that is accommodated between the inherent upper and lower element of this bifurcated, and be connected on the upper and lower element in position spaced by the pin to lower cantalever, the end of cross-anchor is connected on the described pin.

6. a kind of cross-anchor railway bogie as claimed in claim 4, it is characterized in that: L shaped second arm extends beyond the point of connection of cross-anchor, and in each U-shaped subframe, the end of one connecting rod is non-rotatably connected on the end of second arm, thereby L shaped is connected mutually rigidly.

7. as the described a kind of cross-anchor railway bogie of arbitrary aforementioned claim, it is characterized in that: bogie truck is the bogie truck of a standard gauge or the bogie truck of a broad gauge gauge.

8. as the described a kind of cross-anchor railway bogie of arbitrary aforementioned claim, it is characterized in that: bogie truck is a three-member type bogie truck, have a central bolster of being installed on the bogie side frame, wheel is to being suspended on the bogie side frame at aerofoil profile axle box place, and the end of U-shaped subframe is connected on the aerofoil profile axle box.

9. as each described a kind of cross-anchor railway bogie of claim 1～7, it is characterized in that: bogie truck is a three-member type bogie truck, have a central bolster of being installed on the bogie side frame, bogie side frame is hung up on the pivot coro bearng through bearing installation seat and shear pad, wherein shear pad tilts with respect to perpendicular line, and the end of U-shaped subframe is connected on the bearing installation seat.

10. as the described a kind of cross-anchor railway bogie of arbitrary aforementioned claim, it is characterized in that: comprise the deflection restraint device, it provides a constraint to the right relative yaw motion of the wheel of bogie truck, and this deflection restraint device is operated in a mode of successively decreasing.

11. a kind of cross-anchor railway bogie as claimed in claim 10 is characterized in that: the deflection restraint device is taken turns each right end for each and is comprised a coil spring, and this spring is reversed ground prestrain and has corresponding the inner and outer end; At an element that acts between the inner of a U-shaped subframe and each spring and the element that between the outer end of an axle box or bearing installation seat and each spring, acts on; Spring is arranged to for relatively little inclined to one side wheel flutter applying a big relatively deflection constrained force, after this for ensuing inclined to one side wheel flutter to applying a relatively little deflection constrained force.