US1906781A - Bedplate construction - Google Patents

Description

May 2, 1933, R. WINTZER BEDPLATE CONSTRUCTION Filed March 2, 1931 2 Sheets-Sheet 1 Summer Gitomegs I I I a a I r a I I I I r I I I 5 Ill/IIIII/IIIIIl/ i585iii. I

May 2, 1933. R. WINTZER 1,906,781

BEDPLATE CONSTRUCTION Filed March 2, 1931 2 Sheets-Sheet 2 22 22 Q3 3A V i 26 l g y i 3'5 i 5'5 35 C M 4 2 A8 v 48 ss- I 31mentor Patented. M y 1933i rnm'mlm constrauc'rroufd invention relates to frames 7 for re- "ciprocatingf" engines I and, particularly to frames for engines of} the -multli'-cyl1nder .vertica1'typel The, object of the invention :1 to p e a fr m of s cti onal construc tion' which I willineet the s'evererequirements ofserviceg 'Amhita y I i m -i a b :i he large Dieselengines .nOW coming [into extensive use the be plates are necessarily, so large that they can'- 7 notjbe" shipped by rail except, on specially constructed cars and cannot be machined with ."facilities :or dinarily "available.

alfibed plate, so constructed; that in con j unction vviththe, upright frames j sup port jth e' cylinders, the necessary'rig1d1ty of lthefentire enginelframe structure-is secured. A1 preferrediembodiment of the invention is illustrated in" the a accompanying drawfi is, vh chl=r+ I Fig. 1 "s a vertical transverse seotiom this \plane' of section being indicated by the line l'. I"in'Fig.2 '7 a j' Fig; 21s a view ofthebed plate partly 1n "plan and. partly nega io the u e 2 2 lidvi lial sill 8 of box 1 section. These are in the form of'c ored steel castings,

,. suitably-webbe1d as indicated at 9 fand providedon; their approximate faces with webbedzboltingpads 11. 1 1 ;-.-.-The pads on ;the:"two: sills are spaced to correspond With the spacing of the main 12 crank shaft bearings, and to them are bolted cross tie member's 1 2 prefer'ably 'cast individually and i suitably; swebbed. I The memhers 12- carry the main crank shaft bearings "13 which have reinovablecaps 14 held by bolts" 15. The bolts which connect the side "The present invention provides a sectior'i} W but theyseat against and are boltedtothe; cross tie members 12 as well. The bolts are e foundation -two; longiv 1 Thecylinder structure is tied 18 located inthe lower portion of the sills,- and -associated in pairswith the cross tie p I I v members. :Interference with the crank bed .plate 1 is desirable where shaft? precludes the use' of similar rods near the top of the. sills 8,, andwhen. additional connection is necessary recourse 'is bad to theshrink; links 19 (see Fig; 2)" set inthe upper faces of the sills 8 and cross ties Matingwith the upper surfaces of'the sills 8 and cross tie members 12are'a pluralityof upright frames 21. These'are' castings preferably'unitary, as shownysuitably Webbed;

as indicated at 22, and cored'to receive the "tension rods hereinafter. described' The frames are supported primarily bythe sills,

indicated at 23. The bolting pads in the links 19. y p v p The frames 21 support the cylinder structure 31 and superposed cylinders 24. The. entablature is a frame extending theentir'e length of the engine and in a sense is a part a of the engine frame, serving as a bed plate forthe cylinders. Theentablature is -pref-' erably cast as a unit andis suitably webbed so as to combinei strength with light Weight. It boltedto the framesl21 as indicated "at 32.1 'The'cylinders'24 may be cast individually or in multiple.

down'byjten- Robot! w'mrzm; ormnwauxan,. Wisconsin; ASSIGNOR 'ro NORDBERG mat I I 5 'rulm te OOMIANY,'"OF MILWAUKEE, wIscoNsrn, A CORPORATION orwrscousm I dicated at 16. The lugs-J17 "position the 2; 7 parts during assembly.

lower ends of the frames'overlie theshrink 75 ture; Preferably this includes an entablasionjrods 25,two-for each frame; symmetrif cally arranged. The rods 25' pass through the cylindercastingsQ, and entablature 31 and each pair of rods passesthrough a correspondingframe member 21'and tie member engines of the type oontemplated one of themain bearings 1 3 is equipped to serve also as a thrust bearingand prevent motion offthe shaft longitudinally; In the; drawings the middle tie'member l2 of Figs, 2' and i 3 is assumed to carry such a bearing, and unlike the other tie members l2 hasbolts 26 to assist in holding the tie member in place and relieve the bolts 16 of shear.

The bolts 26 are mounted in holes drilled with their axes in the plane of the joint so thatthe hole is approximately half in the sill and half in thetie member. (See Fig. 2.) These bolts are easier to place than dowels would be and serve a similar purpose. The frame'is held to the foundation 6 by tie, rods 27, which passthroughsleeves 28 cast integrally with the frames 21 and through openings in the sills 8. V

The frame structure having been described, important proportions and'relations of the component elements will be explained.

The construction is such that the joint between the upright frames 21 on the one hand and the sills 8 and members 12 on the other, reinforces the joints between the cor responding members 12 and the sills. Furthermore, the plane of this joint is substantially above the aXis of the crank shaft, so

' that the height of the frames21 is reduced to the minimum. The use of the entablature 31 also permits a reduction in the height of frames 21. i

I From the construction and proportioning adopted it becomes possible. to machine all components on machines of reasonable size and'to ship them on ordinary railroad cars,

points of the utmost economic importance.

An oil pan 29 is suspended from the sills, and may be constructed of sheet metal. The studs 33 which hold it in place are accessible from Within the crank case. p

While a particular construction has been described in some detail, modifications are possible within the scope of the invention.

, hat is claimed is:

1. A frame structure for reciprocating engines, comprising in combination, longi-' tudinal sills adapted to rest on a foundation; an intervening cross frame structure formed separately from the sills, and including a plurality of bearing-supporting tie-members extending from sill to sill; and a plurality of upright cylinder-supporting frames, each resting on said sills and on a corresponding .tie member; and means forrigidly connecting said upright framesto the sills and to the corresponding tie member, and for connecting said tie members with said sills.

2. A frame structure for reciprocating en gines, comprising in combination, longitudinal sills adapted to rest on a foundation; an

ber; and means for rigidly connecting said upright frames to the sills and to the corresponding tie member, and for connecting said tie members with said sills.

3. A frame structure for reciprocating engines, comprising in combination, longitudinal sills adapted to rest on a foundation; an intervening cross frame structure formed separately from the sills, and including a plurality of bearing-supporting tie-members extending from sill to sill; and aplurality of upright cylinder-supporting frames, each resting on said sills and on a corresponding tie member ;1 and means for rigidly connecting said upright frames to. the sills and to the corresponding tie-member, and for connecting said tie members with said sills; and tension tie rods extending from sill to sill in association with said tie members.

4. A frame structure for reciprocating engines, comprising in combination, longituto said sills and a corresponding tie member,

and for connecting said tie members to said sills; a cylinder structure mounted'on said upright frames; and tension tie rods passing through said upright frames and connecting said cylinder structure with that tie member which underlies the upright frame; and tension tie rods connecting said sills and associated with corresponding tie members.

5. A frame structure for reciprocating engmes comprising in combination, longitudinal SlllS adapted to rest on a foundation; an intervening cross frame structure, formed separately from the sills, and including a plurality of bearing-supporting tie members, extending from sill tosill; a plurality of upright frames each resting on said sills and on a corresponding tie member; means for rigidly connecting said upright frames to said sills and a corresponding tie member, and for connecting said tie members to said sills; a cylinder structure mounted on said upright frames; and hold-down rods engaging said uprightframes and passing through said sills.

6. A frame structure for reciprocating engmes, comprising in combination, longitudinal-sills adapted to rest on a foundation; an intervening cross frame structure, formed separately from the sills, and including a. plurality of bearing-supporting tie members, extending-from sill to sill; a plurality of uprlght frames each resting on said sills and on a corresponding tie member; means for rigidly connecting said upright frames to, said sills and a corresponding tie member, and for connecting said tie members to said sills; a cylinder structure mounted on said upright frames; andtensiontie rods passing through said upright frames and con-f necting said cylinder structure 'withthat'tie member which underlies the upright frame; a and tension tie rods connecting sald sills and associated with corresponding tie members; "andhold-down rods engaging said upright frames and passing through said sillsf I 7. A frame structure as defined in claim- "1, in which the means for connecting-the tie" members'with the cross sills includes shrink; links set in the upper faces of both and overlaid by said upr ght frames.- 1

8. A framestructure as defined in claim 1," i

in whichat leastone of the bearing-supporting tie members is held'against motion 1n the direction of the lengthofthe sills by l g bolts set in holes drilled in the meeting faces r of the sills and tie members. e I

9. A frame structure as defined in claim 1' 7 in which the plane of the joints between the 1 upright frame members on the one hand, and

the sills; and tie members on the other hand,

is a substantialdistanceabove the axis of the bearings on the tie members. I

10. A "frame Structure for reciprocating engines, comprising in combination, lon

' tudinalsills adapted to rest on a foun a stion;; an intervening cross-frame structure,

formed separately from the sills, and includ ing a plurality of bearing-supporting -tie I member'slextending from sill to sill; a plurality of upright frames, eachresting on,

saidsillsand on a corres onding tie mem-, ber; anv entablature resting on said upright frames; meansfor ri 'dlyconnecting 7 each upright frame to t e 'entablature; means for rigidl "connectingeach upright and to a' corresponding 7 tie member; and means for connecting said" frame to the si tie members to said sills.

, In testimony whereof I have signed my a name tov this specification.

RUDOLF WINTZER'

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