US2044536A

US2044536A - Beam hanger

Info

Publication number: US2044536A
Application number: US747975A
Authority: US
Inventors: August R Maier
Original assignee: Oil Well Supply Co
Current assignee: Oil Well Supply Co
Priority date: 1934-10-11
Filing date: 1934-10-11
Publication date: 1936-06-16
Anticipated expiration: 1953-06-16

Description

BEAM HANGER Filed Oct. 11, 1934 2 Sheets-Sheet l INVENTOR. (/GusrfiM/EE.

ATTORNEYf BEAM HANGER A. R. MAIER Filed Oct. 11, 1934 Tim: 11

W2 I l ill 1 M 1 H, l 25 r l 25 l 20 l 19 14 77/ 75 Q J 54 i 1 .Q i l f I 32 i i 1 5/ 26 2 Sheets-Sheet 2 5/ INVENTOR.

AUGUJTJEMI/EE.

ATTORNEYS Patented June 16, 1936 I UNITED STATES PATENT-OFFICE} August It. Maier, Dallas. Tex., assignor to Oil Well Supply Company, Dallas, Tex., a corporation of New Jersey Application October 11, 1934,. Serial No. 747,975 8Claims. (01255-15) The present invention relates to a hanger to a minimum by providing for the proper adjustconnect pumping apparatusto the end of a rement of the hangerrelative to the arc traversed ciprocating or walking beam or similar driving by the end of the walking beam, and by promechanism. viding a connection to the polished rod as far as .5 Heretofore beam hangers have been used to possible from the end of the beam and to give connect the end of a walking beam to a rod the apparatus a maximum flexibility.. known as the polished rod which passes through The various features of the invention are illusa tubing packing and is connected to sucker rods trated in the accompanying drawings in which extending to the piston of a pump located at the Y Fig. 1 is a side view of an end of the walking bottom of a well. The reciprocating or rocking beam and a hanger'embodying a preferred form 10 motion of the walking beam is thus transmitted of my invention.

to the pumping mechanism. In its rocking mo- Fig. 2 is an end view of the apparatus shown in tion the end of the walking beam travels an arc Fig. 1. and the upper end of the beam hanger must ac- Fig. 3 isa top plan view of a lower yoke for cordingly be deflected sidewise as the end of the connecting the hanger to the polished rod. 15

beam passes between the mid-point and either In my invention the polished rod is connected end of its arc of travel. Owing to the great to the end of the walking beam by means of a weight of the suspended pumping rods and the connection having a swinging or hinge mountliquid being pumped, particularly in very deep ing which may be adjusted in a direction longiwells, it is desirable to avoid as much as possible tudinal to that of the walking beam so that the 20 any deflection of the pull of the beam and its distance of this connection from the axis of the hanger mechanism from the vertical center line beam may be readily adjusted inaccordance with of the pump or sucker rod. the amplitude of the rockingof the beam. The

' It has, therefore, been customary to position mounting of this connection on the beam may be the end of the walking beam above the well so accomplished in any suitable manner as by means 25 that the deflection will not take place entirely to of a saddle having a shelflike extension on which one side, but will be divided equally and thus a the swinging support is slidably mounted and to maximum deflection of the hanger mechanism which it may be secured in any position of adwill be avoided. It is necessary at times to adjustment. Accurate adjustment of the position just the stroke of the pump and consequently of this mounting may be accomplished byadjust- 30 the swing of the walking beam and, in the coning screws or other equivalent devices. structions heretofore used, this will either length- The mounting conveniently will take the for en or shorten the part of the arc of travel. on. of a shaft and journal, one element of which is one side of the center line of the well, thereby secured to the supporting saddle and. the other destroying the proper apportionment of the arc of which is free to swing and from which is sus- 35 and causing a greater deflection of the hanger pended a connecting means. This connecting from the center line of the well than is necessary. means may be of any suitable form but is most Thelangle of deflection between the polished convenient in the form of a pair of straps or rod and the hanger will be greater for a given rods having a yoke at their lower ends through arc, the shorter the length of the members conwhich passes the polished rod. The yoke is so 40 necting the beam to the polished rod. The greatsupported on the rod as to be self-adjusting and er the distance from the end of the beam that to accommodate itself to unevenness in the length the hanger is secured to the polished rod, the less of the supporting rods or straps. The polished will be the angle of pull for any given swing or rod is supported in the yoke by means of a uniarc of the Walking beam and, accordingly, the less versal support such as a ball and socket joint. 45

. will be the sidewise component of stress. The With this arrangement the connection of the sidewise stresses will also be lessened by providstraps to the polished rod may take place at the ing maximum of flexibility of swing of the various lowest possible point on the latter and thereby elements so that no appreciable force required provide a maximum utilization of the distance 5 to swing the elements need be added to the sidebetween the polished rod and the end of the wise component of stress necessarily imposed by walking beam for the connecting member. the swinging end of the walking beam. Referring more particularly to the accompany- The objects of the present invention are to ing drawings, a hanger saddle I0 is mounted on provide a beam hanger in which the sidewise the end of a walking beam ll being for this purstresses on the polished rod may be reduced to pose preferably provided with hooked or flanged 55 extensions I2 and I3 on the upper and lower surfaces of the beam respectively. A shelflike extension I4 projects outwardly from the saddle I8 and is preferably strengthened by ribs I5. A shaft or journal and bearing assembly I 6 is mounted on the shelf I4 to support a pair of downwardly depending metal straps or rods I1 to permit free swinging in the plane of swinging of the beam II.

The shaft and journal assembly I6 comprises a bearing I8 slidably resting on the upper surface of the shelf I4 and secured thereto in various positions of adjustment by studs I9 extending through suitable slotsin the shelf I4 and provided with nuts 20. Adjusting screws 2I pass through upward extensions in the shelf I4 enabling the bearing I8 to be shifted to accurate positions of adjustment, the nuts 20 being loosened before such adjustment and tightened thereafter.

A short shaft or journal 22 is journalled in the chamber.

It will be apparent from the above construction that the straps or rods I1 swing freely in the manner of a hinge that is maintained well oiled and that the position of this swinging support may be readily adjusted with great accuracy in accordance with any change in the amplitude and, consequently, the shifting of the are through which the end of the beam swings.

The lower ends of the rods or straps I 1 support a yoke 28 through which the polished rod 29 or other connection to the pumping mechanism passes and in which it is supported. The mounting of the yoke 28 on the straps I1 is such as to permit the yoke to tilt readily between the straps and accommodate itself to any unevenness in the length thereof and thereby to avoid the necessity for a fine and accurate adjustment of these lengths. For this purpose the ends of the yoke through which the rods I1 pass are provided on their under surfaces with cylindrical recesses, the axes of these recesses being at right angles to the straps or rods I1 and to the plane between these rods. On the end of each rod is mounted a cylin' drical seat 30 fitting its respective cylindrical recess in the yoke 28. The seats 30 are secured on the rods I1 by lock nuts 3I or other suitable means. This recess and seatarrangement enables the yoke to tilt in the plane of the rods I1 but not in the plane of swinging of 'the walking beam II.

The polished rod 29 passes upwardly through an opening 32 in the yoke 28 midway of the rods I1. The opening 32 is somewhat larger than the diameter of the polished rod 29 to permit a swivel movement between the rod and the yoke. At its upper end the opening 32 is widened to a spherical curvature to receive a support 33 in the form of a'spherical segment on which the upper end of the polished rod is mounted by means of a clamp 34. The polished rod is thus secured to the yoke in such a way that it may swing readily in any direction with great freedom and thus avoid any binding that would cause a sidewise stress.

The polished'rod is prevented from hanging up on the downstroke by means of a clamp 35 on the'polish rod which prevents it from sliding upwardly through .the opening 32. The polished rod may be inserted sidewise through the yoke 28 and secured therein by means of a cap or retaining plate 36. 7

It will be noted that the straps I'I swing between the axis of the shaft 22, which is generally level with the axis of rocking of the beam I I, and the center of the spherical support 33. By positioning the yoke as near as possible to the packing in the tubing the maximum possible length for the rods I1 is thus provided.

What I claim is 1 1. A beam hanger comprising a supporting saddle having a sliding surface extending longitudinally thereof, a bearing slidably mounted thereon, means to secure said bearing on said saddle in different positions of adjustment, a shaft journalled in said bearing, and means depending from said shaft to secure a pump rod.

2. A beam hanger comprising a supporting saddle having a sliding surface extending longitudinally thereof, a bearing slidably mounted thereon, adjusting screws to adjust the position of said bearing on said supporting saddle, means to secure 'said bearing on said saddle in difierent positions of adjustment, a shaft journalled in said bearing, and means depending from said shaft to secure a pump rod thereto.

3. A beam hanger comprising a supporting saddle having a sliding surface extending longitudinally thereof, a bearing and shaft assembly slidably mounted thereon, securing means for securing said bearing and shaft assembly in different positions of adjustment on said saddle, and connecting means depending from said bearing and shaft assembly.

4. A beam hanger comprising a supporting saddle having a sliding surface extending longitudinally thereof, a bearing and shaft assembly slidably mounted thereon, securing means for securing said bearing and shaft assembly in different positions of adjustment on said saddle, and connecting means depending from said bearing and shaft assembly, said connecting means comprising a pair of straps.

5. A beam hanger comprising a supporting saddle having extensions to hook onto the end of a beam and a shelf portion extending outwardly therefrom, a bearing and shaft assembly mounted on the upper surface of said shelf extension, said shelf having slots therethrough, and studs extending from said bearing and shaft assembly through said slots to secure said bearing and shaft assembly in different positions on said shelf.

6. A beam hanger comprising a supporting sad dle having extensions to be secured to the end of a beam and a shelf extending outwardly from the end of said beam, a bearing and shaft assembly mounted on said shelf, said shelf having slots, said bearing and shaft assembly having securing studs extending through said slots, and adjusting screws in said saddle extending to opposite sides of said shaft and bearing assembly to adjust the latter longitudinally of said beam.

7. A beam hanger comprising a supporting saddle having means for securing it to .the end of a beam and a shelf extending outwardly from the end of said beam, a bearing and shaft assembly mounted on said shelf extension, means for ad-' justing the bearing and shaft assembly on said shelf longitudinally of said beam, said bearing and shaft assembly having parts extending past the opp'osite sides of said shelf, and depending straps extending downwardly from said projecting portions.

8. A beam hanger comprising a supporting saddle having means to attach it to the end of a walking beam and having a shelf extending forwarclly from the end of said beam, a bearing on said shelf, means to adjust the position of said bearing, a shaft in said bearing and projecting beyond the edges of said shelf, and straps mounted on said projecting ends, one at each side of said shelf.

AUGUST R. MAIER.