Brake shoe mounting assembly and method for its installation

FIELD: transport.

SUBSTANCE: invention relates to railway transport, namely, to mounts of brake shoes for railway cars. Mounting assembly is made with possibility to track lateral travel of wheel on axle truck. Wheel flange is made with possibility to press one side of brake shoe mounting assembly pushing it along axle and squeezing resilient displacing structure. When a wheel returns to central or neutral position squeezed resilient displacing structure expands and returns brake shoe mounting assembly to its initial or neutral position. Also, resilient displacing structure minimises lateral travel of brake shoe mounting assembly towards wheel taper under normal braking loads thus preventing shoe slipping off. Resilient displacing structure can be placed into casing made capable to prevent ingress of contaminants. Railway car braking system contains brake actuator of railway car and brake shoe mounting assembly. Method for installation of brake shoe mounting assembly consists in providing mounting bracket, articulated joint of suspended casing with mounting bracket by means of the first rotary axis, articulated joint of braking shoe holder with opposite sides by means of the second rotary axis, and installation of resilient displacing structure on the second rotary axis.

EFFECT: provision of somewhat braking shoe lateral travel to track wheel lateral travel on railway car truck frame.

20 cl, 11 dwg

 

The technical field to which the invention relates

The present invention relates to supports the brake shoes for railway cars, and more specifically to a support of the brake Shoe, providing some degree of lateral movement of the respective brake Shoe for tracking lateral movement of the wheel on the frame of the truck of a railroad car.

The level of technology

It is well known that a periodic lateral displacement of the rail bogie relative to the wheels of the truck, when, for example, a railway carriage moves along the curved section of the track. In some of the earlier issued patents described brake suspension, which bend, providing a limited transverse movement of the brake shoes during braking with respect to the frame of the truck to which the data charms attached can be rotated. Such bending brake suspension is described, for example, in U.S. patent No. 1166521 issued by Hoke. Brake suspension in accordance with this patent is formed from a rod, made in the shape of a closed or broken link, and transversely-spaced side brake suspension is made essentially flat for easier bending in response to transverse movement of the bogie frame relative to the stake is. Such repeated flexing tend to crystallize hand brake suspension, creating a security risk when braking and allowing the brake rigging to fall down on a railroad track in front of the wheels, which can cause derailment. These shortcomings discussed in U.S. patent No. 1509907 issued Schaefer, which describes an improved design in the form of a hinge-attached brake suspension, which requires ball joints in the upper and lower ends of brake suspension to prevent bending essentially rigid, transversely spaced side consoles brake suspension. However, such ball swivel require more maintenance and can themselves become sources of damage, hardening of the joints and other

In U.S. patent No. 5277280; 5242037 and 5240091 issued Stjarne described brake suspension containing the hinge connection consisting of the left support washers, bushings and the right support washers. This connection allows two dependent suspensions freely rotate or swing and turn in the direction of blending the brake pads to the rim and in the direction for tracking lateral movement of the wheel.

In U.S. patent No. 4630714 issued Stjarne, etc. described holder brake pads, which are included in the con who act with axially movable wheel. Holder brake pads made with the possibility of lateral movement relative to the brake during braking by means of a pair of swing hangers, each of which consists of a set of leaf springs.

In U.S. patent No. 4406444 issued Bogenschutz described brake suspension containing the top clamp, bottom clamp and intermediate design with leaf springs. Leaf spring transversely connected by a rod made of an elastic material, providing transverse movement relative to the lower clamp upper clamp.

In U.S. patent No. 3643766 issued Roush Jr. described a multi-axle truck of a railroad car, which includes a brake lever transmission containing a stabilizing agent, which is elastically pliable, allowing any of the brake shoes to deviate outwards, when they come into contact with the flanges of the corresponding wheel when sufficient lateral movement of the respective wheel axes.

Although known brake pendants that provide a limited transverse movement of the brake shoes during braking with respect to the frame of the truck, however, require improvements in the field of brake hangers, which are transversely flexible to provide greater lateral displacement of the brake Basma the A.

Disclosure of invention

In General, as described in this document, the reference node of the brake Shoe in accordance with a variant embodiment of the invention is able to track the lateral movement of the wheel, usually the wheels on the axial cart, which provides transverse movement of the wheel. In the working position the wheel flange presses on one side of the reference node of the brake Shoe, pushing it along the axis and compressing the elastic bias structure. When the wheel is returned to a Central or neutral position, the compressed elastic bias structure expands, returning a reference node of the brake Shoe in its original position. Elastic bias structure also minimizes lateral movement of the reference node of the brake Shoe along the direction of the taper of the wheel during normal braking loads, thus preventing the jumping Shoe. Elastic bias structure may be enclosed in the housing, configured to prevent the ingress of dirt.

In General, the reference node of the brake Shoe, in one embodiment, includes mounting bracket, suspension housing, the holder of the brake Shoe, and an elastic bias structure. A mounting bracket may be configured to attach to the brake actuator. Pendant to bus pivotally connected to the mounting bracket and includes opposite side, forming a receiving cavity between them. The holder of a brake Shoe pivotally connected with the opposite sides by means of a rotary axis passing between the opposite sides of and through the site holder brake Shoe. Holder brake Shoe is located on the rotary axis so that in the receiving cavity between the holder of the brake Shoe, and one of the opposite sides is formed between. Elastic bias structure is connected with the pivoting axis and is located in the gap formed between the holder of the brake Shoe, and one of the opposite sides. Elastic bias structure made with the possibility of return of the holder of the brake Shoe in a neutral position after operation of the brake on the wheel of a railroad car on a curved section of railway track, where the elastic bias structure is compressed by the wheel.

Elastic bias structure in one embodiment, can contain many spring washers located on the rotary axis. Elastic bias structure can be accommodated in the housing. This building is located in the gap formed between the holder of the brake Shoe, and one of the opposite sides, and accommodates at least part of the swivel axis. The enclosure can imagine the way the corps, consisting of many parts, such as overlapping casing consisting of two parts.

In one application of the reference node of the brake Shoe can be a part of the brake system of a railroad car. In this application, the brake system of a railroad car includes a brake actuator of a railroad car and a reference node of the brake Shoe. The reference node of the brake Shoe usually includes a mounting bracket, suspension housing, the holder of the brake Shoe, and an elastic bias structure. A mounting bracket attached to the brake actuator. Pendant housing pivotally connected to the mounting bracket and includes opposite side, forming a receiving cavity between them. The holder of a brake Shoe pivotally connected with the opposite sides by means of a rotary axis passing between the opposite sides of and through the site holder brake Shoe. Holder brake Shoe is located on the rotary axis so that in the receiving cavity between the holder of the brake Shoe, and one of the opposite sides is formed between. Elastic bias structure is connected with the pivoting axis and is located in the gap formed between the holder of the brake Shoe, and one of the opposite sides. Elastic bias structurepoint with the possibility of the return of the holder of the brake Shoe in a neutral position after operation of the brake on the wheel of a railroad car on a curved section of rail track, where the elastic bias structure is compressed by the wheel.

Elastic bias structure in one embodiment, can contain many spring washers located on the rotary axis. Elastic bias structure can be accommodated in the housing. The building is located in the gap formed between the holder of the brake Shoe, and one of the opposite sides, and accommodates at least part of the swivel axis. The housing may be a housing that consists of many parts, such as overlapping casing consisting of two parts.

In another embodiment, the described method of Assembly the reference node of the brake Shoe. This method preferably includes providing an installation bracket, swivel pendant housing with mounting bracket, swivel holder brake Shoe with the suspended body and the connection of the elastic bias patterns with holder brake Shoe. Suspension frame includes opposite side, forming a receiving cavity between them. The holder of a brake Shoe pivotally connected with the opposite sides by means of a rotary axis passing between the opposing consoles and the plot holder brake Shoe. Holder brake Shoe is located on the rotary Osirak, in the receiving cavity between the holder of the brake Shoe, and one of the opposite sides is formed between. Elastic bias structure is connected with the pivoting axis so that it was located in the gap formed between the holder of the brake Shoe, and one of the opposite sides. Elastic bias structure made with the possibility of return of the holder of the brake Shoe in a neutral position after operation of the brake on the wheel of a railroad car on a curved section of railway track, where the elastic bias structure is compressed under the action of the wheel.

Elastic bias structure can contain many spring washers located on the rotary axis. This method may also include the execution phase elastic bias structure in a protective case. The enclosure can be positioned in the gap formed between the holder of the brake Shoe, and one of the opposite sides, and accommodates at least part of the swivel ring. The housing may be a housing that consists of many parts, such as overlapping casing consisting of two parts.

The method may include attaching the mounting bracket to the brake actuator and operable connection brake with all the red casing to effect the actuation of the holder brake Shoe.

Additional details and advantages will become apparent after reading the following detailed description with reference to the accompanying drawings.

Brief description of drawings

Figure 1 is a vertical projection of the normal brake system, which includes the well-known holder brake Shoe wheel of a railroad car.

Figure 2 is a perspective view of a variant of the implementation support unit of the brake Shoe in accordance with this invention and shown connected to the brake drive train of the car.

Figure 3 is a front view of the known holder of the brake Shoe, which can be used in a conventional brake system, shown in figure 1.

Figure 4 is a vertical projection of the reference node of the brake Shoe shown connected to the brake actuator of a railroad car shown in figure 2.

Figure 5 is a vertical projection with a partial section of a variant of the implementation support unit of the brake Shoe shown in figure 4.

6 is a perspective view of the installation bracket used in the reference node of the brake Shoe shown in figure 4.

Fig.7 is a perspective view of the suspended casing used in reference from the Les of the brake Shoe, shown in figure 4.

Fig is a side view of the reference node of the brake Shoe shown in figure 4.

Figa is a detailed view of a part 9A, shown in figure 5.

FIGU is a detailed view of a part 9B, shown in figure 5.

Figure 10 is a view in section of the site the reference node of the brake Shoe shown in figure 5, indicating a change in a variant implementation.

Description of the preferred embodiments of the invention

Used in the description below, the terms spatial orientation refers to the reference variant implementation, when it is illustrated in the accompanying drawings or as otherwise mentioned in the description below. However, it should be understood that the below described embodiments of can assume many alternative modifications and embodiments. It should also be understood that the specific holder of the brake Shoe and brake system of a railroad car, comprising the holder, illustrated in the accompanying drawings and described herein are simply exemplary and should not be construed as limiting.

The reference node 20 of the brake Shoe, which is described in this document can be used, for example, in Tormos the th system 100, such as the one shown in figure 1 (see also U.S. patent No. 3696892), or can be connected to the brake actuator 200 railroad car shown in figure 2, as described in this document. In a conventional brake system 100 bearing 110 of the brake Shoe is used for hanging the brake Shoe 112 from the frame 114 of the truck. The reference node 20 of the brake Shoe, described in this document without some elements may be used instead of the support 110 of the brake Shoe to maintain the brake Shoe 112 or similar brake Shoe, the details of which are described in this document. Figure 1 is a frame 114 of the truck supports the support 110 of the brake Shoe by means of a rotary axis 116 that is attached to the frame 114 of the truck at the site 118. Frame 114 trolley wheel support 120 on the axis 122, the wheel 120 includes a beveled rim 124 and the flange 126. Brake Shoe 112 is supported on a conventional brake cylinder 128, which, in turn, pivotally connected by a swivel axis 130 with a support bracket 132. The stem 134 of the brake cylinder operable connected with the supporting bracket 132 by means of a rotary axis 136. As described in U.S. patent No. 3696892 issued to Engle, the brake pressure applied to the nominating movement of the rod 134 of the brake cylinder, causes the application of the brake Shoe 112 to the forest 120.

Figure 2 shows the reference node 20 of a brake Shoe connected to the brake actuator 200 of a railroad car in accordance with the present invention. Such a brake actuator 200 is known in the art and is used to actuate the reference node 20 of the brake Shoe of the present invention in the normal way. As is known to experts in the art, the brake actuator 200 railway wagon can be attached to the truck frame, such as frame 114 of the truck shown in figure 1, and thereby connects the reference node 20 of the brake Shoe with the wheel 120 in the conventional design shown in figure 1. In this alternative configuration, the brake actuator 200 railroad car generally replaces the support 110 of the brake Shoe in the brake system 100 shown in figure 1. As mentioned above, the reference node 20 of the brake Shoe can be embedded in the brake system 100 shown in figure 1, resulting in the node 20 described in this document without certain elements, generally replaces the support 110 of the brake Shoe. Therefore, in this direct application reference node 20 of the brake Shoe to the brake system 100 require some structural modifications in the host 20, which are described in this document.

Referring next to figure 3, shows the standard hard supports the output node 1 of the brake Shoe. Known fixed reference node 1 brake Shoe for use on the frames of trucks for railway cars. Some train cars are three-axle bogie frames. The Central axis on a three-axle frames trucks usually has an increased lateral movement to compensate for the bends. Shows the standard rigid support node 1 brake Shoe is located on the frame of the truck so that transverse movement of the wheel does not allow the corresponding brake Shoe to go with the wheels. However, the Central axis of the three-axle bogie frame too much offset to allow a rigid supporting node 1 brake Shoe to accommodate the frame of the truck so that all the time to hold the brake Shoe on the wheel. In this case, in order to keep all the time the brake Shoe in contact with the wheel, you want the mount/suspension brake Shoe, which "floats" with the wheel. Examples of brake suspensions that provide limited lateral movement of the brake shoes during braking with respect to the frame of the truck, were described herein above.

Rigid support node 1 of the brake Shoe shown in figure 3, will be described below only for the purpose of General information. The reference node 1 brake Shoe includes a rigid mounting bracket 2, which is used to attach the reference node 1 to the frame of the truck or alternatively, the block brake actuator that is attached to the truck frame, such as frame 114 truck described with reference to figure 1, by means of mechanical fastening means. The holder 4 of the brake Shoe hanging on the installation bracket 2. Mounting bracket 2 includes a rigid pendant housing with two opposite sides of consoles or 6, connected by a crosspiece 7. Mounting bracket 2 pivotally connected by means of a one-piece cylindrical elements 8 at the end of the respective consoles 6 and a rotary axis 10 with cart frame or, alternatively, with a block brake actuator attached to the frame of the truck. To provide a hinged connection between the suspended casing 6 and the rotary axis 10 can be used any suitable mechanical fastening means.

The connection between the brake cylinder 16 and the piston rod of the brake cylinder, for example the stem 134 of the brake cylinder, shown in figure 1, is used for the application of brake force to the holder 4 of the brake Shoe by the way, in General, described previously with reference to figure 1. To connect mounting bracket 2 with the holder 4 of the brake Shoe and stabilize this connection uses the axis 12. The holder 4 of the brake Shoe hinged to the opposite console 6 through the second of the and 14, containing the cylinder 15. The axis 14 passes through the opposite console 6 and through the brake cylinder 16 of the holder 4 of the brake Shoe. End of axle 14 can include threads for receiving a nut or similar mechanical fastening means for fastening axis 14 relative to the brake head 16 of the holder 4 of the brake Shoe. The rigidity afforded by the installation bracket 2 and the opposite consoles 6, makes a normal node 1 of the brake Shoe shown in figure 3, "hard", as noted in the above description.

Referring next to figure 4-9, shows the reference node 20 of the brake Shoe in accordance with one preferred at the moment of the embodiment of the invention. The reference node 20 of the brake Shoe includes a mounting bracket 22, shown separately figure 6, in the usual form of an open on one side of the housing that is configured to attach to the brake actuator 200 shown in figure 2, which, in turn, attached to the truck frame, such as frame 114 truck described with reference to figure 1. In this configuration, the brake actuator 200 is generally replaces the support 110 of the brake Shoe. A mounting bracket 22 includes a number of connecting sleeves or elements 23 for mechanical connection with the brake actuator 200. If necessary, in the alternative, the installation of the AOC the Stein 22 may be excluded from the reference node 20 of the brake Shoe, so the node 20 without mounting bracket 22 may be suitable for direct attachment to the frame 114 of the truck shown in figure 1. This alternative also eliminates the brake actuator 200, while the reference node 20 of the brake Shoe is actuated by a rod 134 of the brake cylinder in a manner similar to the method described in U.S. patent No. 3696892 issued by Engle and described above with reference to figure 3.

The holder 24 of the brake Shoe hanging on the installation bracket 22 by means of a suspended body 26, a separate bottom view of which is shown in Fig.7. 7 the holder 24 of the brake Shoe is arranged to be mounted between opposing sides 27 of the suspended casing 26, which form the receiving cavity 28 between them to receive and maintain sections of the holder 24 of the brake Shoe. Pendant housing 26 pivotally connected to the mounting bracket 22 by means of a cylindrical support element 29, which forms a Central opening 30 which receives the rotary shaft 31, which passes through the mounting bracket 22 and a cylindrical supporting element 29. To provide a hinged connection between the body 26 of the suspension and mounting bracket 22 can be provided by any suitable mechanical fastening means at opposite ends of the rotary OS is 31.

The opposite side 27 of the suspended casing 26 to form a pair of opposite holes 32 for receiving the second pivot axis 34 containing the cylinder 35. The rotary shaft 34 passes through the opposite openings 32 in the opposite sides 27 of the suspended casing 26 and through the brake cylinder 36 of the holder 24 of the brake Shoe. Each hole 32 may be provided by the sleeve 33 to maintain the rotary axis 34 in the holes 32. The end of the rotary axis 34 may include threads for receiving a combination 378 nuts and washers or similar mechanical fastening means for fastening the rotary axis 34 between the opposing sides 27 and thus provide rotary movement of the holder 24 of the brake Shoe relative to the outboard housing 26. As shown in Fig.7, the opposite side 27 protrude slightly outward at the end of the support housing 26 opposite to the cylindrical support element 29, forming a gap on each side of the holder 24 of the brake Shoe for rotary movement of the holder 24 of the brake Shoe and to provide lateral movement of the holder 24 of the brake Shoe on the rotary axis 34, as described in this document. From 4 to 9, it is obvious that if you want to exclude a mounting bracket 22 and the brake actuator 200 and to attach a pendant housing 26 directly to p is IU truck, such as the frame 114 of the truck shown in figure 1, a cylindrical supporting element 29 may be hinged to the frame 114 of the truck at the point 116 of rotation, shown in figure 1. In this configuration, the stem 134 of the cylinder shown in figure 1, combined with the suspended casing 26 by means of a rotary axis 31 in a manner similar to the method described in the aforementioned patent issued to Engle.

Preferably the rotary shaft 34 includes an expanded section 38 adjacent to the cylinder 35, which forms the ledge 39 of the axis, which limits the transverse movement of the holder 24 of the brake Shoe on the rotary axis 34 in one direction, as shown in figure 4, the protrusion 39 of the axle is limited transverse movement of the holder 24 of the brake Shoe to the right. The receiving cavity 28 formed by the outboard housing 26 is of sufficient size to enable the connection of the elastic bias structure 40 with the holder 24 of the brake Shoe, as well as placement and retention of the holder 24 of the brake Shoe. Elastic bias structure 40 allows or provides transverse movement of the holder 24 of the brake Shoe to the left as shown in figure 5 (for example, the left side of the interval). In one embodiment, this bias structure may contain a number of spring washers 42, located on the rotary axis 34 that d is setout between the left side 27 of the suspended casing 26 and the left side of the holder 24 of the brake Shoe in the form, shown in figure 5.

The presence of the spring washers 42 allows the holder 24 of the brake Shoe to track lateral displacement of the wheels, such as wheel 120, shown in figure 1, in particular when used on the frame of a three-axle truck, as described above. In the above description describes two different configurations to enable the reference node 20 of the brake Shoe in General in the brake system shown in figure 1 (for example, by direct injection into the system or by attaching to the brake actuator 200, which replaces parts of this system of the prior art), both of which can be configured as an element providing lateral displacement, provided the elastic bias structure in accordance with this invention. In working condition, the flange 126 of the wheel 120 clicks on the right side of the holder 24 of the brake Shoe, pushing the holder 24 of the brake Shoe along the rotary axis 34 and thus compressing the spring washers 42. When the wheel 120 is returned to the Central or neutral position, for example, after the implementation of the braking operation on a curved section of railway track, a compressed spring washers 42 act on the holder 24 of the brake Shoe, returning the holder 24 of the brake Shoe in its original position, generally shown in Fi is .5. Spring washers 42 are also used to minimize lateral movement of the holder 24 of the brake Shoe in the direction of the taper 124 wheels under normal braking conditions, thereby preventing the jumping of the brake Shoe. In addition, the ability to pre-load the holder 24 of the brake Shoe in its normal position is a preferred feature of the design. The above constructions of the prior art, which simply contain a flexible suspension, are less suitable in the sense that the taper 124 wheel will deflect the flexible suspension aside during normal braking. Elastic bias structure 40 helps to minimize transverse movement of the holder 24 of the brake Shoe in the direction of the taper 124 wheels under normal braking loads, thereby preventing the jumping Shoe.

Preferably a spring washer 42 is placed in the frame, consisting of two parts, containing the first or left-side portion 44 and a second or right side part 46, which overlap to prevent the penetration of external contaminants. In the case 44, 46 can be provided with seals to maintain their mutually connecting the sliding surfaces clean. Therefore, the holder 24 of the brake Shoe allows some Popper is a great move along the rotary axis 34 in a situation brake on the rotation. Spring washers 42 provide the preload of the holder 24 of the brake Shoe by the flange 126 of the wheel in a braking situation on the turn. When the brakes are released, the spring washers 42 are returning the holder 24 of the brake Shoe in its original position or state. Although the above description refers to the spring washers 42 as elastic bias structure 40 on the rotary axis 34, instead of the spring washers 42 may be used by other equivalent mechanical device, such as a spiral spring, elastically deformable sleeve or similar structure located on the rotary axis 34, or even a leaf spring acting between the left side 27 of the outboard housing 26 and the housing of the holder 24 of the brake Shoe. This list should be considered as incomplete and is not limiting and are given for purposes of example.

Finally, the brake cylinder 36 of the holder 24 of the brake Shoe may contain side recessed areas 48, 50 and the brake cylinder 36 further comprises a Central hole 52, the continuing between the lateral recessed areas, where the rotary axis 34. In the Central hole 52 may be located a pair of bushings 54 with a low coefficient of friction to support rotatably a rotary axis 34. Seals 56 are sootvetstvuetopredelennyj sections 48, 50 and contain the o-ring 60 to seal the Central hole 52 from the external environment. The sealing ring 60 located on the right side of the rotary axis 34 as shown in figure 5, secured and sealed in the in-depth section 48 by means of the end cap 62, and the right o-rings 60 are sealed in the in-depth section 50 through the overlapping casing 44, 46, containing a spring washer 42. End cover 62 also provides a stop for the brake head 36. The retainer ring 64 can be used with two annular seals 60 in each depth plot 48, 50 for additional seals the Central hole 52 from the external environment.

Preferably the sleeve 54 are sleeve bearings with low friction coefficient, such as bearings DX, manufactured by GG Bearing Technology. Data sleeve bearings 54 are metal sleeve with an inner layer of acetal resin; and bearings DX, manufactured by GG Bearing Technology, are examples of suitable sleeve bearings for use in this invention. The rotary shaft 34 is preferably carefully polished to minimize friction with the sleeve bearings 54. Figure 10 shows the alternative use of such sleeve bearings with a low coefficient Tr is of sleeve 54. Figure 10, on the rotary axis 34 is formed by a flat surface 70, and between the rotating axis 34 and the brake cylinder 36 is provided by vertical rollers 72. An alternative implementation is shown in Fig.7 can be called linear ball bushing bearing, since this alternative includes elements 72 rolling between the brake cylinder 36 and the pivot axis 34.

Although in the above described embodiments of the reference node of the brake Shoe for truck of a railroad car specialists in the art can make additions and changes to these options for implementation, without going beyond the scope and essence of the invention. Therefore, the above description should be considered as explanatory and not restrictive. The invention described in this document, is defined by the attached claims, and all changes in the invention, which are within the nature and range of equivalency of the claims, must be within its scope.

1. The reference node of the brake Shoe, comprising:
mounting bracket;
pendant housing, the hinge connected through the first pivot axis with mounting bracket and containing the opposite side, forming a receiving cavity between them;
holding the spruce brake Shoe, pivotally connected with the opposite sides by means of a second swivel axis passing between the opposite sides of and through the site holder brake Shoe, and the holder of the brake Shoe is located on the second swivel axis so that in the receiving cavity between the holder of the brake Shoe, and one of the opposite sides is formed by a gap, and so that the holder brake Shoe is able to move transversely to the second rotary axis; and
elastic bias structure mounted on a second rotary axis and located in the gap formed between the holder of the brake Shoe, and one of the opposite sides, and the elastic bias structure allows the holder brake Shoe track transverse movement of the wheels of a railroad car and returns the holder brake Shoe in the neutral position to the second rotary axis upon operation of the brake wheel on a curved section of railway track, where the elastic bias structure is compressed by the wheel when the transverse movement of the holder brake Shoe on the second rotary axis.

2. The node of claim 1, wherein the elastic bias structure contains many spring washers located on the second rotary axis.

3. The node according to claim 1, in which the UE is u bias structure is placed in the case.

4. The node according to claim 3, in which the building is located in the gap formed between the holder of the brake Shoe, and one of the opposite sides, and accommodates at least part of the second rotary axis.

5. The node according to claim 3, in which the housing has a body consisting of many parts.

6. Node Shoe according to claim 5, in which case, consisting of many parts, represents the overlapping case, consisting of two parts.

7. Brake system of a railroad car containing:
the brake actuator of a railroad car; and
the reference node of the brake Shoe, comprising:
a mounting bracket attached to the brake actuator;
pendant housing, the hinge connected through the first pivot axis with mounting bracket and containing the opposite side, forming a receiving cavity between them;
the holder of a brake Shoe pivotally connected with the opposite sides by means of a second swivel axis passing between the opposite sides of and through the site holder brake Shoe, and the holder of the brake Shoe is located on the second swivel axis so that in the receiving cavity between the holder of the brake Shoe, and one of the opposite sides is formed by a gap, and so that the holder brake Shoe capable Popper is a rule to move to the second rotary axis; and
elastic bias structure mounted on a second rotary axis and located in the gap formed between the holder of the brake Shoe, and one of the opposite sides, and the elastic bias structure allows the holder brake Shoe track transverse movement of the wheels of a railroad car and returns the holder brake Shoe in the neutral position to the second rotary axis upon operation of the brake wheel on a curved section of railway track, where the elastic bias structure is compressed by the wheel when the transverse movement of the holder brake Shoe on the second rotary axis.

8. The system according to claim 7, in which the elastic bias structure contains many spring washers located on the second rotary axis.

9. The system according to claim 7, in which the elastic bias structure is placed in the case.

10. The system according to claim 9, in which the building is located in the gap formed between the holder of the brake Shoe, and one of the opposite sides, and accommodates at least part of the second rotary axis.

11. The system according to claim 9, in which the housing has a body consisting of many parts.

12. The system according to claim 11, in which case, consisting of many parts, represents the overlapping case, sustasis two parts.

13. The method of assembling the reference node of the brake Shoe, including:
software installation bracket;
swivel mounted with the mounting bracket by a first pivot axis, and a suspension frame includes opposite side, forming a receiving cavity between them;
swivel holder brake Shoe with the opposite sides by means of a second swivel axis passing between the opposing consoles through the plot holder brake Shoe, the holder of the brake Shoe is located on the second swivel axis so that in the receiving cavity between the holder of the brake Shoe, and one of the opposite sides is formed by a gap, and so that the holder brake Shoe is able to move transversely to the second rotary axis; and
the installation of the elastic bias structure on a second rotary axis so that it was located in the gap formed between the holder of the brake Shoe, and one of the opposite sides, and an elastic bias structure allows the holder brake Shoe track transverse movement of the wheels of a railroad car and returns the holder brake Shoe in the neutral position to the second rotary axis after the transaction braking nabolese on a curved section of rail track, where the elastic bias structure is compressed by the wheel when the transverse movement of the holder brake Shoe on the second rotary axis.

14. The method according to item 13, in which the elastic bias structure contains many spring washers located on the second rotary axis.

15. The method according to item 13, additionally including the conclusion of the elastic bias structure in a protective case.

16. The method according to item 15, in which the building is located in the gap formed between the holder of the brake Shoe, and one of the opposite sides, and accommodates at least part of the second rotary axis.

17. The method according to item 15, in which the housing has a body consisting of many parts.

18. The method according to 17, in which case, consisting of many parts, represents the overlapping case, consisting of two parts.

19. The method according to item 13, further comprising attaching a mounting bracket to the brake actuator.

20. The method according to claim 19, further comprising a functional connection brake outboard housing to effect the actuation of the holder of the brake Shoe.



 

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FIELD: transport.

SUBSTANCE: invention relates to railway transport, namely, to railway vehicle braking clamps. Braking clamp comprises composite friction element, steel wire carcass, solid iron insert electrochemically coated with bronze alloy, arranged at clamp center and inserted into said composite friction element. Steel wire carcass represents two closed frames inserted in said composite friction element of clamp rear side, along clamp edges. Inner parts of two closed frames are overlapped and bent outward from clap rear side to make ear for cotter pin. Clamp rear side has steel gauze or perforated tin inserted in composite friction element. Iron insert with bronze alloy at its top idle part has the slot at its rear with inserted composite friction element with cotter pin ear and supports arranged in symmetry on insert both sides. Insert top idle part is inserted in steel carcass and clamped therein. All metal part of the clamp stay indirect contact.

EFFECT: higher reliability, longer life.

1 dwg

FIELD: transport.

SUBSTANCE: invention relates to railway transport, particularly, to rolling stock braking equipment. Brake pad comprises steel carcass and iron arched body. Said arched body consists of the pad body main section furnished with cylindrical inserts arranged in groups and pad body shaped section with groove made therein to receive inserts to be fitted therein. Said pad has extra metallic carcass to support cylindrical inserts of the pas body main section and shaped section ridged inserts. Main section cylindrical inserts are made of composite friction material with friction factor higher than that of the base. Shaped section ridged inserts are composed of shaped elements fitted in pad grooves in the plane in contact with wheel tread flange interacting with tail side surface. Inserts are made of antifriction material with friction factor lower than that of the base and abrasiveness lower than that of the base and inserts fitted in pad body main section.

EFFECT: lower noise in braking, reduced wheel flange and side wear, increased locomotive MTBR, higher stability and reliability.

3 dwg

FIELD: transport.

SUBSTANCE: invention relates to railway transport, namely, to rolling stock braking equipment. Brake shoe comprises body equipped with friction elements embedded into said body on friction surface side. Body rear wall has hole to receive brake shoe attachment axle. Body rear walls have inner arched ribs on friction surface side. Friction elements have grooves on sides to be accommodated on said ribs. Side walls have holes to receive friction element ends limiters. Brake shoe attachment axle and friction element limiters support guide bracket for orientation of friction elements relative to wheel flange. Body rear wall has holes to remove heat from friction elements. Arched bearing surface of friction elements in contact with brake shoe body allows independent arrangement of every friction element relative to wheel friction surface.

EFFECT: simplified design, longer life and higher reliability.

2 dwg

FIELD: transport.

SUBSTANCE: invention relates to friction elements used at railway rolling stock. Braking clamp with lateral bosses comprises polymer friction element and metal carcass made up of perforated rear support block and wire frame. Rear support block length exceeds that of wire frame and approximates to that of clamp. Perforated rear plate has cutouts made in zones of lateral bosses.

EFFECT: ease of manufacture, ruling out rejects due to displacement and deformation of perforated rear plate in forming bosses.

2 dwg

Friction item // 2438051

FIELD: machine building.

SUBSTANCE: friction item has working surface, pressure surface, and side surfaces. On side (or one of sides) surfaces of the item there is set a wear indicator made in form of a lug or recess. The wear indicator is made so, that corresponding lines of cross section of side surfaces of the item and surface of the indicator are made with not smooth transition (transition with a curve) along arc with radius from 0.2 mm to 1.5 mm for each plane of cross-section of the item orthogonal to pressure and side surfaces of the item.

EFFECT: simplified design of item and its practical manufacture in existent serial production.

FIELD: transport.

SUBSTANCE: invention relates to railway transport, particularly, to railway transport braking equipment. Braking clamp with lateral bosses comprises polymer friction element and metal carcass made up of perforated rear support plate and wire frame. Rear support plate length exceeds that of wire frame and approximates to that of clamp. Perforated rear plate has cutouts made in zones of lateral bosses.

EFFECT: ease of manufacture, ruling out rejects due to displacement and deformation of perforated rear plate in forming bosses.

3 dwg

FIELD: transport.

SUBSTANCE: invention relates to railway transport, particularly, to railway transport braking equipment. Braking clamp comprises composite friction element provided with wear indicators and means of protection against improper use, and metal carcass. Metal carcass comprises wire carcass and perforated tin. Said protection means represent ledges and holes in reinforced composite element. Wire carcass frame ends may match clamp width or exceed it, and be arranged on clamp outer lateral surface at wire carcass center. Clamp may incorporates high-strength cast iron insert. Friction abrasive insert working surface area relates to total area of clamp working surface as four to twenty percent.

EFFECT: higher safety and reliability.

8 cl, 1 dwg

Braking device // 2424143

FIELD: transport.

SUBSTANCE: invention relates to test equipment. Braking device comprises shoe to embrace rail guide head and displace there along. Wedge-like recess with lead-in part oriented along motion direction is made inside said shoe, in front part of its top wall if sent in direction of motion of object to be braked. Wedge made from elastoplastic material and antifriction coat applied on its top surface enters said wedge-like recess in braking. Shoe top wall may remove wedge wear residues from surface of friction between shoe and rail head and wedge deformed section pushed through gap between shoe and rail head via through hole. Said through hole is made in shoe top wall behind wedge-like recess or via gap between shoe top wall face and sliding support.

EFFECT: reduced braking distance.

7 cl, 4 dwg

FIELD: transport.

SUBSTANCE: invention relates to braking devices, namely to railroad vehicle braking clamps. Proposed braking clamp comprises at least one single-layer composite friction element, wire carcass pressed into clamp rear part and at least one solid insert furnished with braces arranged on each side over its length. At least one brace is made independent of said insert, jointed therewith and fitted on the clamp rear surface side. Said solid insert is jammed in said wire carcass. Solid insert can be made from high-strength or malleable iron.

EFFECT: longer life, higher safety.

2 cl, 2 dwg

FIELD: transport.

SUBSTANCE: brake block contains polymer composite friction element with cavity in its central part, metal frame and rigid inserts spaced at different sides of cavity. Rigid inserts are made with insert working part width equal to approximately one half of friction element working part width. Rigid inserts are located at different sides of friction element working part.

EFFECT: improvement of block operational performance due to providing solidity of frictional element with simultaneous keeping block flexibility and positive action of inserts on the whole rolling surface of wheel participating in friction contact.

3 dwg

FIELD: transport.

SUBSTANCE: invention relates to railroad transport, namely to brake shoes of rolling stock. In compliance with the first version, brake shoe comprises one-layer composite friction material rear surface of which has perforated bent steel band and wire carcass pressed therein. Said wire carcass is made up of two interconnected wires. Every carcass is made by bending wires with their ends connected. Wire ends connections cause no thickening of wire carcass along the shoe thickness. In compliance with the second version, brake shoe comprises one-layer composite friction material rear surface of which wire carcass pressed therein. Said wire carcass is made up of two interconnected wires. Every carcass is made by bending wires with their ends connected. Wire ends connections feature thickening of wire carcass along the shoe thickness. Wire ends connections are located at the center of wire carcass, nearby brake shoe outer side surface.

EFFECT: stable braking, recovery of wheel rolling surface, higher safety.

6 cl, 7 dwg

FIELD: railway transport.

SUBSTANCE: bimetal braking clamp comprises arc-bent cast pig-iron bar furnished with a boss arranged at rear side center and having a bore to receive wedge-like cotter-pin to be fixed in clamp holder. Said cast pig-iron bar body has cylindrical inserts arranged in rows and made from material that features higher abrasive properties compared with those of bar material. Groups of inserts are separated by sections with no inserts, said inserts being point-welded to steel plate repeating the shape of and covering bar rear side. Steel plate is perforated to have 25 mm-dia holes in compliance with arrangement of inserts in bar body. Two inserts should be located opposite each round hole. Insert face overlaps round hole area for 1/3. Insert face is eclectically welded to round hole edge. In casting, mould is filled so that steel plate round holes are filled with pig-iron. Square holes are arranged along steel plate edges to receive pig-iron U-section bosses. Length of section with no inserts exceeds both width.

EFFECT: uniform wear of braking surfaces, wheels locking in all braking conditions.

8 dwg

FIELD: railway transport.

SUBSTANCE: invention relates to railway transport, particularly to brake shoes. Proposed brake show comprises polymer friction material and metal carcass comprising perforated rear ledge with its length smaller than that of shoe rear part by 1 to 9 mm and 11 mm to 50 mm.

EFFECT: ease of manufacture.

1 dwg

Hump brake shoe // 2375227

FIELD: railroad transport.

SUBSTANCE: hump brake shoe comprises stop with lever and skid. Note here that aforesaid stop and skid are made from either antifriction material or somewhat other material. In the latter case wheel rolling surface has antifriction linings that, in pair with wheel material, boast low friction factor. Skid lower part has slot accommodating friction lining that, in pair with rail material, boasts low friction factor. Stop top part accommodates vessel with liquid to be fed, via wick, onto wheel rolling surface.

EFFECT: reduced wheel and hump damage, eliminated sparking.

5 cl, 1 dwg

Railway brake block // 2372230

FIELD: railway transport.

SUBSTANCE: invention relates to the railway transport, in particular to brake blocks of the railway transport brakes. Brake block without metal support plate has metal insert containing the main body, two wing-shaped feathers integrated into the main body, located on its opposing sides, digressed wherefrom and having backside surfaces adjacent to the backside surface of the brake block. It also has two mostly parallel feathers spreading in radial direction and integrated into the main body and/or to the wing-shaped feathers. Parallel feathers form the keyway. When the brake block is installed at the brake head the keyway passes through the hole located in the brake head.

EFFECT: invention increases the technical characteristics of the block.

8 cl, 19 dwg

FIELD: railway transport.

SUBSTANCE: invention relates to railway transport, particularly to railway vehicle block brakes. Block brake comprises at least one-layer composite friction element, wire carcass and two solid inserts. Aforesaid wire carcass is pressed in the composite friction material on the block brake rear side. Solid inserts are jointed with the wire carcass. Each of two solid inserts has at least one ledge on the brake rear part, on every side along the insert length. One of the said ledges is arranged in central boss, on both sides from the block center.

EFFECT: higher-efficiency braking, increased durability and longer life.

4 cl, 4 dwg

Friction product // 2361131

FIELD: machine building.

SUBSTANCE: invention relates to friction products, particularly, to blocks and linings of the vehicle disk and drum brakes. The proposed friction product includes a polymer composite friction element with ferromagnetic particles from magnetically soft material. Additionally, it comprises the particles of magnetically hard material with the ratio of magnetically soft-to-magnetically hard particles making from 1:1 to 1.5:1, respectively. As a result, friction properties are improved due to accelerated stabilisation of friction characteristics during initial operation in, primarily, out-of-town conditions. This has been achieved because of constant heating of proposed product during reversal magnetisation under temperatures that cause no fast destruction of friction composite polymer matrix.

EFFECT: improved friction properties.

FIELD: transport.

SUBSTANCE: invention relates to railway transport, namely, to railway vehicle braking clamps. Disc brake comprises case, brake plates, brake shoes with plastic linings, leverage with two bell cranks and their hinge pins. Brake discs are secured at both sides of running wheel. Leverage is engaged with brake souse on one side and, on that other side, with controlled pneumatic brake cylinders and springs to pull brake shoes from brake disc. Disc brake is equipped with friction discs fitted on both sides of running wheel, at brake discs ends. Inner friction discs are composed of segments fitted on axles at the case while outer friction discs are composed of segment rings secured by pins at brake disc with plates to connection of segments by screws. Friction discs comprises extra springs fitted at axles to make clearance over friction surface.

EFFECT: higher efficiency of braking, decreased sizes, simplified design, expanded operating performances.

2 dwg

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