CA1102624A - Pedestal type side frame - Google Patents
Pedestal type side frameInfo
- Publication number
- CA1102624A CA1102624A CA338,426A CA338426A CA1102624A CA 1102624 A CA1102624 A CA 1102624A CA 338426 A CA338426 A CA 338426A CA 1102624 A CA1102624 A CA 1102624A
- Authority
- CA
- Canada
- Prior art keywords
- pedestal
- wear liner
- roof
- side frame
- wear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
IMPROVED PEDESTAL TYPE SIDE FRAME
Abstract of the Disclosure A wear liner is provided for the roof of the pedestal jaw of a side frame. Movement of the wear liner relative to the pedestal roof is inhibited by projections extending upwardly from the lateral edges of the wear liner and/or depending legs which extend from the wear liner and cooperate with the stop lugs of the pedestal jaw. The need for conventional welding is reduced or eliminated.
-i-
Abstract of the Disclosure A wear liner is provided for the roof of the pedestal jaw of a side frame. Movement of the wear liner relative to the pedestal roof is inhibited by projections extending upwardly from the lateral edges of the wear liner and/or depending legs which extend from the wear liner and cooperate with the stop lugs of the pedestal jaw. The need for conventional welding is reduced or eliminated.
-i-
Description
6~
Back~round and Summarv or_the Invention This invention relates to improved pedestal type side frames, useful, for example, in trucks for railway vehicles.
More particularly, the invention relates to such side frames wherein improved and longer lasti~g wear protection is obtained.
Wear liners are often provided between the bearing adapter and the roof of the pedestal jaw of a side frame in which a roller bearing assembly is received. Such wear liners act to reduce wear in the pedestal roof caused by oscillating motions of the side frame relative to the wheel and axle assembly. These wear liners are often welded to the pedestal roof. Under heavy duty~ e.g., high speed service~ thsse welds tsnd tc fail. When thess welds fail, the wear liner may become displ2ced or even lost~ thus resulting in increased and undesir2ble wear in the pedestal roof. Clearly, it wouLd be advantage~us to provide an ; ~mproved means for securing the wear liner in ?lace.Therefore, one object of ,he prssent lnvention }s to ; provide an improved pedestal type side frame.
Another object of the invention is to provide an ~; improved wear liner for use in a pedestal type side frame.
.
A still further object of the invention is ~o pro~ide an improved pedestal type side ~-ame in which the wear liner is ~aintained securely in place. Other objects and ~; 25 advanta~es of the present i~vention will beco~e apparent hereinalter. ,~
_ 1 _ ~ 2~
An improved pedestal type side f~ame has now been discovered. Such side frames involve an integrally rormed do-~nwardly open jaw which inc ludes a roof and depending legs, which legs have substantially opposed stop lugs. A bearing assembly is recei~ed in the jaw. A
bearing adapter overlays ~his bearing assembly and a wear liner is disposed between the roof and adapter to, for example, reduce or eliminate wear on the roof. In o~e embodiment the present improvement compri~es utilizing a wear liner which includes at least two projections, i.e.
one pair of projections, extending upwardly from the lateral edges of the wear liner. These projections are positioned so ~s to cooperate, e.g., be engageable, with at least a portion of the Lateral edges of the pedestal roof and tnereby inhibit movement o~ the wear liner, e.g., ; in the longitudinal direction, relative to the pedestal ;~
:~` roof. Preferably, the substantially mutually opposing . , projections or the wear liner act to provide a spring type retaining means to inhibit the wear liner from - 20 mo~ing n tne langitudinal direction relative to tne ped2stal roofO
Many of the embodiments or the present side frame do not re~uire that the wear liner be attached, e.g.g welded to the pedes tal roor. However, in certain embodiments of the prescnt invention, such attach~ent provides additional :
~ -2-g bene~its. For example, in one preferred embodiment~ ~he wear liner ls attached, preferably welded, to the pedestal roof by attaching~ 2.g., welding, at least portions of two of the wear liner projections to the pedestal roof. Such attachment is neither directly above nor below the wear surface or~ the liner and, therefore, has increased resistance ~o failure.
In a further preferred embodiment, the wear liner ~ includes at leas t two substantially mutually opposing L0 downwardly depending legs which terminate closely adjacent to the substantially opposed stop lugs. These downwardly depending legs and stop lugs are positioned so as to be capable of cooperating to inhibit the movement of the wear liner, e.g., in the later21 direction, eiative to the pedestal roof, for example, in the event of ~eld railure.
In one embo~iment, the present invention provides a side frame wherein the wear liner is inhibited from moving in ;~ the longitudinal direction by upwardly extending projections and from moving in the lateral direction by downwardly depending legs. In this embodiment~ no weldinc or other `~ means of 2 tta~hing the wear liner to the pedestal roof isrequired. However, such att~chment techniques may be employed to provide an extra measure wear liner movement prevention.
~'~
z~
In general, and except as otherwise provided for herein, the side Erame of the present invention may be fabricated from any suitable material or combination of materials of construction. The material of construction used for each component of the present apparatus may be dependent upon the particular application involved. Of course, the side frame should be made of materials which are substantially unaffectedr except for normal wear and tear, by the conditions at which the apparatus is normally operated.
These and other aspects and advantages of the present invention are set forth in the following detailed description and claims, particularly when considered in conjunction with the accompan~ing drawings in which like parts bear like reference numerals.
Description of the Drawings Figure 1 is a partial front view of one end of a pedestal type side frame including one embodiment of the present invention.
Figure 2 is a bottom view of the structure of Figure 1 ~; ~0 with certain parts removed for clarity.
Figure 3 is a top perspective view of the wear liner ~.
~; used in the structure of Figure 1.
; Figure 4 is a partial front view of one end of a ~- pedestal type side frame including another embodiment of the present invention.
Figure 5 is a bottom view of the structure of Figure 4 with certain parts removed for clarity.
Figure 6 is a top perspective view of the wear liner used in the structure of Figure 4.
Figure 7 is a partial front view of one end oE a pedestal type side frame including a further embodiment of the present invention.
Back~round and Summarv or_the Invention This invention relates to improved pedestal type side frames, useful, for example, in trucks for railway vehicles.
More particularly, the invention relates to such side frames wherein improved and longer lasti~g wear protection is obtained.
Wear liners are often provided between the bearing adapter and the roof of the pedestal jaw of a side frame in which a roller bearing assembly is received. Such wear liners act to reduce wear in the pedestal roof caused by oscillating motions of the side frame relative to the wheel and axle assembly. These wear liners are often welded to the pedestal roof. Under heavy duty~ e.g., high speed service~ thsse welds tsnd tc fail. When thess welds fail, the wear liner may become displ2ced or even lost~ thus resulting in increased and undesir2ble wear in the pedestal roof. Clearly, it wouLd be advantage~us to provide an ; ~mproved means for securing the wear liner in ?lace.Therefore, one object of ,he prssent lnvention }s to ; provide an improved pedestal type side frame.
Another object of the invention is to provide an ~; improved wear liner for use in a pedestal type side frame.
.
A still further object of the invention is ~o pro~ide an improved pedestal type side ~-ame in which the wear liner is ~aintained securely in place. Other objects and ~; 25 advanta~es of the present i~vention will beco~e apparent hereinalter. ,~
_ 1 _ ~ 2~
An improved pedestal type side f~ame has now been discovered. Such side frames involve an integrally rormed do-~nwardly open jaw which inc ludes a roof and depending legs, which legs have substantially opposed stop lugs. A bearing assembly is recei~ed in the jaw. A
bearing adapter overlays ~his bearing assembly and a wear liner is disposed between the roof and adapter to, for example, reduce or eliminate wear on the roof. In o~e embodiment the present improvement compri~es utilizing a wear liner which includes at least two projections, i.e.
one pair of projections, extending upwardly from the lateral edges of the wear liner. These projections are positioned so ~s to cooperate, e.g., be engageable, with at least a portion of the Lateral edges of the pedestal roof and tnereby inhibit movement o~ the wear liner, e.g., ; in the longitudinal direction, relative to the pedestal ;~
:~` roof. Preferably, the substantially mutually opposing . , projections or the wear liner act to provide a spring type retaining means to inhibit the wear liner from - 20 mo~ing n tne langitudinal direction relative to tne ped2stal roofO
Many of the embodiments or the present side frame do not re~uire that the wear liner be attached, e.g.g welded to the pedes tal roor. However, in certain embodiments of the prescnt invention, such attach~ent provides additional :
~ -2-g bene~its. For example, in one preferred embodiment~ ~he wear liner ls attached, preferably welded, to the pedestal roof by attaching~ 2.g., welding, at least portions of two of the wear liner projections to the pedestal roof. Such attachment is neither directly above nor below the wear surface or~ the liner and, therefore, has increased resistance ~o failure.
In a further preferred embodiment, the wear liner ~ includes at leas t two substantially mutually opposing L0 downwardly depending legs which terminate closely adjacent to the substantially opposed stop lugs. These downwardly depending legs and stop lugs are positioned so as to be capable of cooperating to inhibit the movement of the wear liner, e.g., in the later21 direction, eiative to the pedestal roof, for example, in the event of ~eld railure.
In one embo~iment, the present invention provides a side frame wherein the wear liner is inhibited from moving in ;~ the longitudinal direction by upwardly extending projections and from moving in the lateral direction by downwardly depending legs. In this embodiment~ no weldinc or other `~ means of 2 tta~hing the wear liner to the pedestal roof isrequired. However, such att~chment techniques may be employed to provide an extra measure wear liner movement prevention.
~'~
z~
In general, and except as otherwise provided for herein, the side Erame of the present invention may be fabricated from any suitable material or combination of materials of construction. The material of construction used for each component of the present apparatus may be dependent upon the particular application involved. Of course, the side frame should be made of materials which are substantially unaffectedr except for normal wear and tear, by the conditions at which the apparatus is normally operated.
These and other aspects and advantages of the present invention are set forth in the following detailed description and claims, particularly when considered in conjunction with the accompan~ing drawings in which like parts bear like reference numerals.
Description of the Drawings Figure 1 is a partial front view of one end of a pedestal type side frame including one embodiment of the present invention.
Figure 2 is a bottom view of the structure of Figure 1 ~; ~0 with certain parts removed for clarity.
Figure 3 is a top perspective view of the wear liner ~.
~; used in the structure of Figure 1.
; Figure 4 is a partial front view of one end of a ~- pedestal type side frame including another embodiment of the present invention.
Figure 5 is a bottom view of the structure of Figure 4 with certain parts removed for clarity.
Figure 6 is a top perspective view of the wear liner used in the structure of Figure 4.
Figure 7 is a partial front view of one end oE a pedestal type side frame including a further embodiment of the present invention.
2~
Fiyure 8 is a bottom view of the structure of Figure 7 with certain parts removed for clarity.
Figure 9 is a top perspective view of the wear liner used in the structure of Fiyure 7.
Description of the Preferred Embodiment ... .. . .
Referriny now to the drawings, and particularly to Fiyures 1, 4, and 7, a pedestal type side frame is indicated generally at 10 and includes a downwardly open jaw 12 defined by pedestal roof 14 and depending legs 16 and 18. It should ~ -~
10 be understood that a side frame is symmetrical longitudinally ~;
and each end includes a pedestal jaw 12. The pedestal jaw 12 ; is arranged to receive a conventional roller bearing assembly 20 and a bearing adapter 22 which is restrained from lateral movement by a pair of opposed stop lugs 19.
Positioned between the bearing adapter 22 and the pedestal roof 14 is a wear liner indicated generally at 24 in Figures 1, 2 and 3; at 44 in Figures 4, 5 and 6; at 64 in -: : .
Figures 7, 8 and 9; and at 84 in Figures 10, 11 and 12. Each -~
of these wear liners 24, 44, 64 and 84 will be described in detail hereinafter.
, Referring now to the embodiment shown in Fiyures 1, 2 -~ and 3, wear liner 24 includes liner body 26 which provides contact surfaces with the pedestal roof 14 from above and with the bearing adapter 22 from below. Wear liner 24 also ~ ., ~ includes two downwardly depending, i.e., from liner body 26, - ~ legs 28 and 30 which are sized to be received in the mutually , facing recesses 32, for, in the opposing side lugs 19, this ~` arranyement provides a degree of restraint of movement of the wear liner 24 relative to the pedestal roof 14.
Wear liner 24 also includes two pairs of mutually ~opposed projections 34, 3S and 36, 37 which extend upwardly from the generally flat surface of liner body 26.
~ 5 , Z~L
Projections 34, 35 and 36, 37 are positioned to receive pedestal roof 14 and to provide a certain degree of spriny action to inhibit movement of the wear liner 24 relative to the pedestal roof 14. Thus, projections 34, 35 and 36, 37 cooperate wi-th pedestal roof 14 to further inhibit or restrain movement of the wear liner 24 re:Lative to the pedestal roof 14. The embodiment illustrated in Figures 1, 2 and 3 requires no physical attachment, e.g., welding, of the wear liner 24 to the pedestal roof 14.
With regard to Figures 4, 5 and 6, wear liner 44 includes liner body 46 which functions similarly to liner body 26, described previously. Further wear liner 44 includes two downwardly dependin~ legs 48 and 50 which cool~erate with stop lugs 19 in a manner similar to legs 28 and 30 noted above.
Wear liner 44 further includes a single pair of projections 52 and 53 extending substantially upwardly from opposing lateral edges of liner body 46. Each of the ~` projections 52 and 53 include recesses 54 and 55, respectively. However, the bottom of each of the recesses 54 and 55 is above the upper surface of liner body 46.
Projections 52 and 53 are positioned to receive pedestal roof 14 and to provide a certain degree of spring action to ;~ inhibit movement of wear liner 44 relative to pedestal roof 14~ To further inhibit such movement, wear liner 44 is attached to pedestal roof 14 by welds located in the recesses ` 54 and 55 of projections S2 and 53. Since these wélds are located a distance away from, i.e., above, the wear surfaces of the wear liner 44, these welds in recesses 54 and 55 have reduced tendency to failure.
The embodiment illustrated in Figures 7, 8 and 9 involves wear liner 64 which includes liner body 66~ Liner Z~iZ4 body 66 functions similarly to liner bodies 26 and 4~. Wear liner 64 further includes two pairs of mutually opposing depending legs 68 r 69 and 70 and 71. Depending legs 68 and 70 along with liner body 66 form recess 74, while mutually facing recess 76 is defined by depending :Legs 69 and 71 and liner body 66. In this embodiment stop lugs 19 are formed with mutually facing extensions 79 and 80 which are sized and positioned to be received into recesses 76 and 78l respectively. ~n this manner stop lugs 19 cooperate with depending legs 68, 69 and 70, 71 to inhibit movement of the wear liner 64 relative to the pedestal roof 14.
Wear liner 64 further includes a single pair of substantially mutually opposing projections 81 and 82 which extend in a generally upward direction from the flat surface of liner body ~6. Projections 81 and 82 are positioned to receive pedestal roof 14 and to provide a certain degree of spring action to inhibit movement of the wear liner 64 relative to the pedestal roof 14.
The present invention provides a pedestal type side frame having substantial benefits, e.g., long life/ reduced maintenance and improved service reliability. Movement of the wear liner in both the longitudinal and lateral directions relative to the pedestal roof may be inhibited.
Further the need for conventional, failure prone welds is reduced or eliminated and replaced by simple mechanical cooperation between various components of the side frame assembly.
While the invention has been described with respect to various specific examples and embodiments, it is to be understood that the invention is not limited thereto and that it can be variously practiced within the scope of the following claims.
Fiyure 8 is a bottom view of the structure of Figure 7 with certain parts removed for clarity.
Figure 9 is a top perspective view of the wear liner used in the structure of Fiyure 7.
Description of the Preferred Embodiment ... .. . .
Referriny now to the drawings, and particularly to Fiyures 1, 4, and 7, a pedestal type side frame is indicated generally at 10 and includes a downwardly open jaw 12 defined by pedestal roof 14 and depending legs 16 and 18. It should ~ -~
10 be understood that a side frame is symmetrical longitudinally ~;
and each end includes a pedestal jaw 12. The pedestal jaw 12 ; is arranged to receive a conventional roller bearing assembly 20 and a bearing adapter 22 which is restrained from lateral movement by a pair of opposed stop lugs 19.
Positioned between the bearing adapter 22 and the pedestal roof 14 is a wear liner indicated generally at 24 in Figures 1, 2 and 3; at 44 in Figures 4, 5 and 6; at 64 in -: : .
Figures 7, 8 and 9; and at 84 in Figures 10, 11 and 12. Each -~
of these wear liners 24, 44, 64 and 84 will be described in detail hereinafter.
, Referring now to the embodiment shown in Fiyures 1, 2 -~ and 3, wear liner 24 includes liner body 26 which provides contact surfaces with the pedestal roof 14 from above and with the bearing adapter 22 from below. Wear liner 24 also ~ ., ~ includes two downwardly depending, i.e., from liner body 26, - ~ legs 28 and 30 which are sized to be received in the mutually , facing recesses 32, for, in the opposing side lugs 19, this ~` arranyement provides a degree of restraint of movement of the wear liner 24 relative to the pedestal roof 14.
Wear liner 24 also includes two pairs of mutually ~opposed projections 34, 3S and 36, 37 which extend upwardly from the generally flat surface of liner body 26.
~ 5 , Z~L
Projections 34, 35 and 36, 37 are positioned to receive pedestal roof 14 and to provide a certain degree of spriny action to inhibit movement of the wear liner 24 relative to the pedestal roof 14. Thus, projections 34, 35 and 36, 37 cooperate wi-th pedestal roof 14 to further inhibit or restrain movement of the wear liner 24 re:Lative to the pedestal roof 14. The embodiment illustrated in Figures 1, 2 and 3 requires no physical attachment, e.g., welding, of the wear liner 24 to the pedestal roof 14.
With regard to Figures 4, 5 and 6, wear liner 44 includes liner body 46 which functions similarly to liner body 26, described previously. Further wear liner 44 includes two downwardly dependin~ legs 48 and 50 which cool~erate with stop lugs 19 in a manner similar to legs 28 and 30 noted above.
Wear liner 44 further includes a single pair of projections 52 and 53 extending substantially upwardly from opposing lateral edges of liner body 46. Each of the ~` projections 52 and 53 include recesses 54 and 55, respectively. However, the bottom of each of the recesses 54 and 55 is above the upper surface of liner body 46.
Projections 52 and 53 are positioned to receive pedestal roof 14 and to provide a certain degree of spring action to ;~ inhibit movement of wear liner 44 relative to pedestal roof 14~ To further inhibit such movement, wear liner 44 is attached to pedestal roof 14 by welds located in the recesses ` 54 and 55 of projections S2 and 53. Since these wélds are located a distance away from, i.e., above, the wear surfaces of the wear liner 44, these welds in recesses 54 and 55 have reduced tendency to failure.
The embodiment illustrated in Figures 7, 8 and 9 involves wear liner 64 which includes liner body 66~ Liner Z~iZ4 body 66 functions similarly to liner bodies 26 and 4~. Wear liner 64 further includes two pairs of mutually opposing depending legs 68 r 69 and 70 and 71. Depending legs 68 and 70 along with liner body 66 form recess 74, while mutually facing recess 76 is defined by depending :Legs 69 and 71 and liner body 66. In this embodiment stop lugs 19 are formed with mutually facing extensions 79 and 80 which are sized and positioned to be received into recesses 76 and 78l respectively. ~n this manner stop lugs 19 cooperate with depending legs 68, 69 and 70, 71 to inhibit movement of the wear liner 64 relative to the pedestal roof 14.
Wear liner 64 further includes a single pair of substantially mutually opposing projections 81 and 82 which extend in a generally upward direction from the flat surface of liner body ~6. Projections 81 and 82 are positioned to receive pedestal roof 14 and to provide a certain degree of spring action to inhibit movement of the wear liner 64 relative to the pedestal roof 14.
The present invention provides a pedestal type side frame having substantial benefits, e.g., long life/ reduced maintenance and improved service reliability. Movement of the wear liner in both the longitudinal and lateral directions relative to the pedestal roof may be inhibited.
Further the need for conventional, failure prone welds is reduced or eliminated and replaced by simple mechanical cooperation between various components of the side frame assembly.
While the invention has been described with respect to various specific examples and embodiments, it is to be understood that the invention is not limited thereto and that it can be variously practiced within the scope of the following claims.
Claims (4)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. In a pedestal type side frame with an integrally formed downwardly open jaw which includes a roof and depending legs, said legs having substantially opposed stop lugs with recessed portion, a bearing assembly received in said jaw, a bearing adapter overlying said bearing assembly, and a wear liner disposed between said roof and said adapter;
the improvement wherein said wear liner includes on each side laterally spaced substantially mutually opposing projections extending upwardly from the lateral edges of said wear liner, said projections being positioned so as to engage at least a portion of the lateral edges of said pedestal roof and thereby inhibit movement of said wear liner relative to said pedestal roof, said wear liner further including at least two substantially mutually opposing downwardly depending legs having tab portions which extend downward beyond said legs, said tab portions being positioned to engage cooperating recessed portions of said stop lugs to inhibit movement of said wear liner relative to said pedestal roof.
the improvement wherein said wear liner includes on each side laterally spaced substantially mutually opposing projections extending upwardly from the lateral edges of said wear liner, said projections being positioned so as to engage at least a portion of the lateral edges of said pedestal roof and thereby inhibit movement of said wear liner relative to said pedestal roof, said wear liner further including at least two substantially mutually opposing downwardly depending legs having tab portions which extend downward beyond said legs, said tab portions being positioned to engage cooperating recessed portions of said stop lugs to inhibit movement of said wear liner relative to said pedestal roof.
2. The pedestal type side frame of Claim 1 wherein said wear liner is attached to said pedestal roof.
3. The pedestal type side frame of Claim 2 wherein at least portions of said two of said substantially mutually opposing projections engage said pedestal roof.
4. The pedestal type side frame of Claim 3 wherein said projections are welded to said pedestal roof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA338,426A CA1102624A (en) | 1979-10-25 | 1979-10-25 | Pedestal type side frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA338,426A CA1102624A (en) | 1979-10-25 | 1979-10-25 | Pedestal type side frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1102624A true CA1102624A (en) | 1981-06-09 |
Family
ID=4115430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA338,426A Expired CA1102624A (en) | 1979-10-25 | 1979-10-25 | Pedestal type side frame |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1102624A (en) |
-
1979
- 1979-10-25 CA CA338,426A patent/CA1102624A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |