US3841229A

US3841229A - Pedestal retaining keys for journal boxes

Info

Publication number: US3841229A
Application number: US00313929A
Authority: US
Inventors: E Smith; R Nadherny
Original assignee: Illinois Railway Equipment Co
Current assignee: Illinois Railway Equipment Co
Priority date: 1972-12-11
Filing date: 1972-12-11
Publication date: 1974-10-15
Anticipated expiration: 1991-10-15
Also published as: CA994403A

Abstract

Thrust blocks forming shiftable keys are located in spaced relation to one or both opposite undersides of roller bearing assembly mounted for movement between vertical legs or frame side walls of a railway car side frame or journal box toward and away from a top wall for limiting movement thereof away from the top wall. The thrust blocks are pivotally and slidably mounted on one or both side walls by various mounting arrangements.

Description

[451 Oct. 15,1974

United States Patent Smith et al. l

[54] PEDESTAL RETAINING KEYS FOR 10S/220 IOS/221 IOS/221 10S/221 PAIENTEDUU 1 51914 smLaza SHEET 1 0F 6 PEDESTAL RETAINING KEYS FOR JOURNAL BOXES This invention relates, generally, to railway car trucks and it has particular relation to releasable inclosures for axlebox mountings. It constitutes an improvement over the construction disclosed in Hasten, Jr., U.S. Pat. No. 3,521,570, issued July 2l, 1970 and in Hasten, Jr., U.S. application Ser. No. 314,174 filed Dec. l1, 1972, which is assigned to the assignee of the instant application.

Among the objects of this invention are: To provide for mounting a thrust block on the depending legs or walls of a railway car side frame or journal box in a new and improved manner; to carry the thrust block at the distal end of the short arm of an L-shaped support that is pivotally mounted on the leg or wall at the distal end of the long arm of the L-shape; to hold the L-shaped support in operative position by a removable pin on the respective leg or side wall with the pin extending transversely of the support at the junction of its arms; to secure an adapter to the outside of the leg or wall of the side frame or journal box for mounting the thrust block and its support; to hold the L-shaped support in opera tive position by a bolt the head of which reacts against the junction of the arms of the support; to slidably mount the thrust block and its support on the leg or side wall; and to hold the thrust block and its support in operative position by a bolt and a removable transversely extending pin.

In the drawings:

` FIG. 1 is a view, partly in side elevation and partly in section of a railway car side frame in which this invention is incorporated.

FIG. 2 is a vertical sectional view taken generally along line 2-2 of FIG. 1.

FIG. 3 is a sectional view showing how thethrust block means is applied.

FIG. 4 is a perspective view of the thrust block means.

FIG. 5 is a view, similar to FIG. 1, and shows the application of thrust block means to both of the lower ends of the depending frame side walls or legs of the railway car side frame.

FIG. 6 is a view looking from left to right of the left wall or leg of the car side frame as shown in FIG. 5. FIG. 7 is a perspective view of the thrust block adapter employed in the construction shown in FIG. 5.

FIG. 8 is a view, partly in side elevation and partly in section of a modified formof railway car side frame with which the present invention can be employed.

FIG. 9 is a sectional view showing a modified arrangement for holding the thrust block means in operative position.

FIG. 10 is a sectional view showing a modified form of thrust block means which is slidable rather than pivotally mounted at the lower end of one of the depending frame side walls or legs.

FIG. 11 is a view, similar to FIG. 10 and shows how the slidable thrust block means can be applied.

FIG. l2 is a top plan view of the slidable thrust block means as shown in FIGS. l0 and ll.

FIG. 13 is a view, partly in end elevation and partly in section showing how the present invention can be employed in conjunction with a roller bearing assembly mounted in a railway car journal box.

FIG. 14 is a view, similar to FIG. 13, and shows the extent of movement that can take place of the roller FIG. 20 is a perspective view of the thrust block adapter.

FIG. 21 is a perspective view of the thrust block means.

Referring now particularly to FIGS. l and 5 it will be observed that reference character 10 designates, generally, a railway car side frame which is provided with depending frame side walls or legs indicated at 1l and 12. The wall or leg 1l comprises outer and inner members `13 connected by a cross member 14. In a similar manner wall or leg 12 comprises outer and inner members 15 which are interconnected by a cross member 16. The car side frame 10 includes a frame top wall 17 unydemeath which there is located a bearing adapter 18 against which a roller bearing assembly, shown generally at 19, is arranged to react upwardly. The roller bearing assembly 19 is provided with a conventional cylindrical housing 20-having a cylindrical outer surface 2l. The frame side wall or leg l2 terminates at its lower end inr a bottom member 22 having an opening 22' therethrough arranged to receive a bolt to retain a conventional side frame key.

It will be understood that the roller bearing assembly 19 moves vertically between the depending side frame walls or legs 11 and l2 during movement of the railway car. It is desirable that this relative movement be limited in a more effective manner than presently is controlled by a side frame key. For this purpose thrust block means, shown generally at 23 is employed. As shown in FIG. l the thrust block means 23 is located near the lower end of the depending frame side wall or leg 12. In FIG. 5 the thrust block means 23 is located at the lower ends of both of the depending frame side walls or legs ll and l2.

FIGS. 2, 3 and 4 show more clearly the details of construction of the thrust block means 23. I-Iere it will be observed that it includes an L-shaped support that is indicated, generally, at 24 which is formed by spaced apart L-shaped side members 25. A thrust block 26 interconnects the distal ends 27 of the side members 25 of the short arm 28 of the L-shape. The thrust block 26 has an arcuate bearing surface 29 which normally is spaced slightly from the cylindrical outer surface 21 of the roller bearing assembly 19 as illustrated in FIGS. l and 5.

The thrust block means 23 is pivotally mounted near the lower ends of the depending walls or

legs

11 and 12, FIGS. l and 5, by means of a bolt 32. In FIG. 1 it will be observed that the bolt 32 extends through the outer and inner members l5 near the-lower end of the frame side wall or leg 12. The thrust block means 23 includes a bearing 33 which interconnects the distal ends 34 of the long arms 35 of the L-shaped support 24. A lock 3 nut 36, FIG. 2, is employed for securely holding the bolt 32 in place.

It will be understood that the thrust block means 23 is pivoted on the bolt 32 to swing toward and away from the cylindrical outer surface 21 of the roller bearing assembly 19.

In order to hold the thrust block means 23 in operative position with the arcuate bearing surface 29 in spaced relation to the cylindrical outer surface 21 of the roller bearing assembly 19 there is provided a transverse pin 37 at the junction of the short and

long arms

28 and 35 of the L-shaped support 24. As shown in FIG. 2 a cotter pin 38 extends transversely through the pin 37 to hold it in place. On removal of the cotter pin 38, the transverse pin 37 can be withdrawn. Subsequently on removal of the bolt 32 the thrust block means 23 can be withdrawn for inspection or replacement.

Referring now particularly to FIGS. 5, 6 and 7 it will be observed that the lower end of the depending frame side wall or leg 1l is cut away as indicated at 41 to permit application of the thrust block means 23 previously described. For mounting the thrust block means 23 at this location there is provided a thrust block adapter that is indicated, generally, at 42 and illustrated more clearly in FIGS. 6 and 7. The thrust block adapter 42 is permanently welded in place as indicated at 43 and 44 in FIG. 5 and in FIG. 6.

The thrust block adapter 42 is provided with

semicircular openings

45 and 46 for receiving the pin 37, previously described which is held in place by a cotter pin 38. Instead of the bolt 32 there is provided a transverse pin 32' which is welded in place as indicated at 47, FIG. 6.

lt will be observed in FIG. that the thrust block means 23 are located on opposite sides of the roller bearing assembly 19 and well below the horizontal center thereof. This provides a symmetrical construction and tends to hold the roller bearing assembly 19 midway between the depending frame side walls or legs 11 and l2.

The railway car side frame illustrated in FIG. 8 is similar to that illustrated in FIGS. l and 5 except that the bottom member 22 and opening 22' therein for the conventional frame key is omitted. The depending frame side walls or legs 51 and 52 correspond to the depending frame side walls or legs 1l and l2 previously described. The manner in which the thrust blocks means '23 are mounted near the lower ends of these walls or legs is apparent from the previous description.

FIG. 9 shows a modification of the construction illustrated in FIG. l in that the transverse pin 37, previously described, is omitted. Instead a head 55 of a bolt 45, which extends through the opening 22', is arranged to react against a shoulder 57 near the junction of the long and short arms of the L-shaped support 24 to hold the thrust block means 23 in operative position. A lock nut 58, threaded on the lower end of the bolt 56 is employed for holding it securely in position. A stop shoulder on each of the side members 25 reacts against the inside of the cross member 16 to limit the inward swing of the thrust block means23.

In FIGS. l0, ll and 12 thrust block means, indicated generally at 61, is arranged for slidable mounting on the upper side of the bottom member 22. The thrust block means 6l includes a thrust block 62 which interconnects side members 63. The thrust block 62 has an arcuate bearing surface 64 that normally is held in spaced relation to the cylindrical outer surface 2l of the roller bearing assembly 19 but is arranged to be engagecl thereby should the assembly move downwardly a slight extent. Openings 65 are provided in the side members 63 near the ends away from the thrust block 62 for receiving a transverse pin 66. It will be understood that the pin 66 extends transversely through the outer and inner members l5 of the depending frame side wall or leg l2 in the manner previously described for the pin 37.

The thrust block means 61 has a bottom wall 67 interconnecting the side members 63. As shown in FIG. 12 an elongated opening 68 is formed in the bottom wall 67 and has a semi-cylindrical end 69 for receiving a shank 70 of a bolt 7l. The bottom wall 67 also has a square opening 72 for receiving a head 73 of the bolt 7l as illustrated in FIG. 10; A lock nut 74 serves to hold the bolt 71 securely in operative position. After application of the lock nut 74,.weld metal is applied to the lower end of the bolt to prevent loss of the lock nut 74.

The thrust block means 61 is installed as illustrated in FIG. 11 with the lock nut 74 loose. Here ths shank 70 of the bolt 71 abuts the semi-cylindrical end 69 of the elongated opening 68. Then the thrust block means 61 is moved to the position shown in FIG. 10 where the head 73 drops into the square opening 72. Next the nut 74 is tightened and finally the pin 66 is inserted to react against endwise force applied to the thrust block means 61. The transverse pin 66 corresponds to the pin 37 previously described and is held in place by a cotter pin or similar means.

Referring now to FIGS. 13, 14 and 15 it will be noted that reference character designates, generally, a railway car journal box which is provided with depending frame side walls 8l and 82 interconnected at their upper ends by a frame top wall 83. Underneath the frame top wall 83 is located the bearing adapter 18 against which the roller bearing assembly 19 is arranged to react upwardly.

For the reasons outlined hereinbefore it is desirable to limit the downward movement of the roller bearing assembly 19 19 in the railway car journal box 80. For this purpose openings 84 are formed in the

side walls

81 and 82 near their lower ends for receiving thrust block means the details of construction of which are illustrated more clearly in FIGS. 16, 17, 19 and 2l. Reference character 85 designates, generally, the thrust block means. It includes a thrust block 86 having an arcuate bearing surface 87 normally positioned in spaced relation to the cylindrical outer surface 2l of the roller bearing assembly 19 as illustrated in FIG. 13. The thrust block 86 is mounted on arms 88 which are provided with outstanding trunnions 89rfor pivotal mounting in a manner to be described. Stops 91 extend upwardly from the arms 88 to limit the pivotal movement of the thrust block means 85 toward the roller bearing assembly 19 by contacting the outer surfaces of the depending frame side walls 811 and 82.

For pivotally mounting the thrust block means 85 thrust block adapters 94, FIGS. 16, 17, 18 and 20 are employed. As shown in FIG. 13 the thrust block adapters 94 are weldedat 95 and 96 to the outer surfaces of the depending frame side walls 8l and 82.

Each thrust block adapter 94 has a semi-circular groove 97 for receiving the trunnions 89 of the thrust block means 85. Along the groove 97 there is located a projection 98 which, as shown in FIG. 13, serves to accurately position the thrust block adapter 94 in the openings 84 prior to performing the welding operation.

The thrust block adapter 94 also is provided with

semi-circular openings

100 and 101 for receiving a transverse pin 102 to hold the thrust block means 85 in operative position. As shown more clearly in FIG. 16 the semi-circular opening 100 is closed at one end by a wall 103 to limit the movement of the transverse pin 102. The semi-circular opening 101 has an extension 104 which, as shown more clearly in FIG. 18, is provided with semi-circular openings 105 to receive a cotter pin 106 which reacts against the adjacent end of the transverse pin 102 for the purpose of holding it in operative position.

As illustrated in FIG. 14 the thrust block adapters 94, having the thrust block means 85 assembled therewith, are welded in place at 95 and 96 adjacent the openings 84. The roller bearing assembly 19 is moved upwardly in the journal box 80 or the journal box 80 is moved downwardly so that the roller bearing assembly 19 is positioned as illustrated in FIG. 13 underneath the bearing adapter 18 which contacts the underside of the frame top wall 83. Then the thrust block means 85 are pivoted to the positions shown in FIG. 13 and the transverse pins 102 are placed in operative position in the semi-circular openings at 100 and 101 in the thrust block adapter 94 and in the semi-circular openings 90 in the arms 88. Finally the cotter pin 106 is positioned as illustrated by broken lines in FlG. to hold the transverse pin 101 against endwise movement.

It will be observed that the construction illustrated in FIG. 13, like that illustrated in FIGS. 5 and 8 provides a symmetrical arrangement for the thrust block means 85 in cooperation with the roller bearing assembly 19. The thrust block means 85 are located in symmetrical spaced relation with respect to the under surface of the roller bearing assembly 19. ln this manner the roller bearing assembly 19 is maintained midway between the inner sides of the depending frame side walls 8l and 82 thereby preventing sidewise movement of the roller bearing assembly 19 sufficient to contact the inner sides of the frame side walls 8l and 82.

We claim:

l. ln a railway car bearing construction having a roller bearing assembly located between frame side walls and reacting upwardly against a bearing adapter underneath a frame top wall and having a cylindrical housing, thrust block means adjacent an under surface of said cylindrical housing having an arcuate surface to limit movement thereof away from said top wall, means pivotally mounting said thrust block means on one of said side walls to swing toward and away from said cylindrical housing, and removable means extending transversely of said mounting means and reacting against said one side wall to hold said thrust block means in operative position relative to said cylindrical housing.

2. Thrust block means according to claim 1 wherein said mounting means includes an L-shaped support having a thrust'block at the distal end of the short arm, the pivot mounting is located at the distal end of the long arm, and said removable means is a pin extending through the junction of said arms.

3. Thrust block means according to claim 2 wherein said mounting means comprises a one piece construction with the arms formed by spaced apart side members integral with said thrust block and said pivot mounting.

4. Thrust block means according to claim 1 wherein said thrust block means and mounting therefor are located at the lower ends of each of said side walls with thrust blocks on opposite sides of and normally spaced from the surface of said roller bearing assemly.

5. Thrust block means according to claim 4 wherein an adapter is secured to the lower end of one of said side walls, and said removable means in the form of a pin is supported by said adapter.

6. Thrust block means according to claim 1 wherein said mounting means includes an L-shaped support having a thrust block at the distal end of the short arm, the pivot mounting is located at the distal end of the long arm, and said removable means is a bolt extending downwardly through the lower end of said one side wall with its head reacting against the junction of said arms.

7. Thrust block means according to claim 6 wherein an adapter is secured to the lower end of each of said side walls and said removable means in the form of a pin is supported by said adapter.

8. Thrust block means according to claim 7 wherein aid mounting for said thrust block means has outwardly extending trunnions journaled on the respective adapter.

9. Thrust block means according to claim 8 wherein said mounting for said thrust block means has a stop arm extending radially of the axis of said trunnions for engaging the respective side wall to limit movement of the respective thrust block toward said roller bearing assembly.

10. In a railway car bearing construction having a roller bearing assembly located between frame side walls and reacting upwardly against a bearing adapter underneath a frame top wall and having a cylindrical housing, thrust block means adjacent an under surface of said cylindrical housing having an arcuate surface to limit movement thereof away from said top wall, means mounting said thrust block means on one of said side walls to move toward and away from said cylindrical housing, and removable pin means reacting against said one side wall to hold said thrust block means in operative position relative to said cylindrical housing.

1l. Thrust block means according to claim 10 wherein a bolt extends downwardly through the lower end of said one side wall with its head underneath said pin and in the path of movement of said mounting means away from said roller bearing assembly.

Claims

1. In a railway car bearing construction having a roller bearing assembly located between frame side walls and reacting upwardly against a bearing adapter underneath a frame top wall and having a cylindrical housing, thrust block means adjacent an under surface of said cylindrical housing having an arcuate surface to limit movement thereof away from said top wall, means pivotally mounting said thrust block means on one of said side walls to swing toward and away from said cylindrical housing, and removable means extending transversely of said mounting means and reacting against said one side wall to hold said thrust block means in operative position relative to said cylindrical housing.

2. Thrust block means according to claim 1 wherein said mounting means includes an L-shaped support having a thrust block at the distal end of the short arm, the pivot mounting is located at the distal end of the long arm, and said removable means is a pin extending through the junction of said arms.

8. Thrust block means according to claim 7 wherein said mounting for said thrust block means has outwardly extending trunnions journaled on the respective adapter.

11. Thrust block means according to claim 10 wherein a bolt extends downwardly through the lower end of said one side wall with its head underneath said pin and in the path of movement of said mounting means away from said roller bearing assembly.