US3264911A - Portable drum flange turning machine - Google Patents

Description

Aug. 9, 1966 v. H. cRlDER PORTABLE DRUM FLANGE TURNING MACHINE 2 Sheets-Sheet 1 Filed Dec. 2, 1963 INVENTOR. VER'N H. CP/DEF BY 6 @MM/ Aug. 9, 1966 v. H. CRIDER PORTABLE DRUM FLANGE TURNING MACHINE 2 Sheets-Sheet 2 Filed Dec. 2, 1963 INVENTOR VERN H. CR/DER 6, 4i Jfimfl/ ATTORNEY N vm United States Patent 3,264,911 PORTABLE DRUM FLANGE TURNENG MACHINE Vern H. Crider, 2530 Bank St., Bakersfield, Calif. Filed Dec. 2, 1963, Set. N0. 327,238 2 Claims. (Cl. 82-4) This invention relates to a portable device for refinishing or turning the surfaces of drum flanges of a draw works or similar drilling apparatus.

The braking flanges at the ends of a cable drum of draw works frequently become badly scored, worn and abraded. The surfaces of such flanges have, in the past, been refinished only after dismantling of the drum from its bearings. Such an operation is expensive for two reasons-the cost of turning the flanges and the cost involved in long layup time of the machine.

The present invention has for an object to provide a flange-refinishing machine that performs its operation on the flanges while the drum remains in position in the draw works.

Another object of the invention is to provide a portable machine of the character referred to for simultaneously turning both flanges on the opposite ends of a draw works cable drum.

This invention also has for its objects to provide such means that are positive in operation, convenient in use, easily installed in a working position and easily disconnected therefrom, economical of manufacture, relatively simple, and of general superiority and serviceability.

The invention also comprises novel details of construction and novel combinations and arrangements of parts, which will more fully appear in the course of the following description, and which is based on the accompanying drawings. However, said drawings merely show and the following description merely describes, preferred embodiments of the present invention, which are given by Way of illustration or example only.

In the drawings, like reference characters designate similar parts in the several views.

FIG. 1 is a plan view of a portable drum flange turning machine according to the present invention, and shown in operative position with relation to a draw works and the brake flange on the drum thereof.

FIG. 2 is an enlarged front elevational view of the tool portion of said machine, as in the position of FIG. 1.

FIG. 3 is a plan view, similar to FIG. 1, showing a modification of simultaneously turning both flanges of a draw works drum.

FIGS. 1 and 3 show the base or frame 5 of a draw works, a cable drum 6 having end brake flanges 7 and 8 i being disposed in its usual operative position mounted on a shaft 9 that is driven by a drive 10 from any suitable prime mover. The brake bands, ordinarily associated with the flanges 7 and 8, have been removed to expose the cylindrical faces of said flanges. It is these surfaces 11 and 12 that, according to the wear, abrasion and scoring thereof, require to be re-faced to restore the braking function of the draw works to maximum efliciency. With the brake bands removed, the drum is rotated by the drive 10 at a desired rate according to the depth of the facing cut that is made in the surfaces 11 and 12. The frame 5 includes a platform 13 that is usually provided with a framing brace 14 defining the opening in the base 5 in which the drum 6 and its flanges 7 and 8 reside.

The present machine may be mounted on any suitable portion of the platform 13. In this case, angle brackets 15 and 16 may be affixed, as by welding, in front of the respective brake flanges 7 and 8, and used for mounting the turning component of the machine. These brackets may be initially provided against the time they will be needed, or be provided at the time a flange-turning operation is to be instituted.

The present flange-turning machine comprises, genrally, a turning component 20 adapted to be secured to bracket 15 or 16, depending on which drum flange is to be turned, as in FIG. 1, or two turning components 20 and 21 adapted to be secured to both brackets 15 and 16 in cases where both flanges are to be turned simultaneously, as in FIG. 3, a drive component 22 to operate the component 20 of FIG. 1 or the two components 20 and 21 of FIG. 3, and an articulated driving connection 23 between the component 22 and the flange-turning components.

The turning components 20 and 21 are generally alike.

Each comprises a base plate 25 adapted to be affixed to a bracket 15 or 16, as the case may be, by screws or bolts extending through holes 26 in said brackets, a slide 27 mounted on the plate 26 and guided by slide plates 28 to move longitudinally along said base plate, the slide being provided with an internal screw seat whereby the same constitutes a nut, a lead screw 29 engaged with the slide nut and maintained against endwise movement in end bearings 30 on the base plate 25, a plate 31 affixed to the slide 27, a generally conventional tool holder 32 adjustably mounted on said plate 31 so that the tool 33 may be presented to the cylindrical face of the drum flange to be turned or faced at a desired angle according to conventional machining practices, the tool holder being provided with compound slides to enable usual adjustments of the tool 33 to bring the same to bear on the surface to be machined. The two different angular positions of the tool holder with respect to the base of the turning component, as in FIGS. 1 and 3, are examples of the different angular adjustments of the tool holder and tool that may be made.

Since the base plate 25 is arranged so its length is parallel to the axis of the flanges 7 and 8, it will be clear that rotation of the lead screw 29 in one direction or the other will cause traverse of the tool holder in a corresponding direction and cutting of the tool 33 into the surface 11 or 12 of the drum flanges, as indicated at 34 on drum surface 11.

The component 22 is shown as mounted on a base 35 and provided with a guard 36. Said component comprises a reversible motor 37 provided with a speed reducer 38 that terminates in an output shaft 39, and is served by an electrical reversing unit 40 that can be set to drive the motor 37 in either direction.

Electric current is conducted to the unit 40 by means of a cable 41 and a cable 42 connects said unit with a startand-stop switch 43. In this case, the switch 43 is shown as being opened by means 44 provided on the tool holder 32, but the same may be manually operated, if desired, for both on and off positions.

The component 22 need not be fastened down, but may be placed at any convenient place, as limited by the driving connection 23.

In the form of FIG. 1, the driving connection 23 is shown as a shaft 45 that, by a universal joint 46, is connected to the lead screw 29 and, by a universal joint 47, is connected to the output shaft 39 of the speed reducer 38.

In the form of FIG. 3, the connection 23 is shown as a flexible shaft which may be advantageously used due to the low rotation speed of the output shaft 39.

In the modification, a connection 48 between the lead screws of the components 15 and 16 may be formed to be extensible to accommodate different spacings of the components as required by the spacing of the brake flanges 7 and 8. In this case, a polygonal extension 49 of one lead screw telescopically connects with a sleeve 50 with a similar socket, as shown. Keys, flats or other telescopic and non-rotationally connected extensions of the lead screws may be used.

It will be clear that, after removal of the brake bands, it is a simple matter to place one or a gang-connected pair of flange-turning components in operative position to face the drums, thus performing this operation without excessively tieing up the draw works and the attending crew of workers.

While the foregoing has illustrated and described what is now contemplated to be the best mode of carrying out the invention, the constructions are, of course, subject to modification without departing from the spirit and scope of the invention. Therefore, it is not desired to restrict the invention to the particular forms of construction illustrated and described, but to cover all modifications that may fall within the scope of the appended claims.

Having thus described the invention, what is claimed and desired to be secured by Letters Patent is:

1. A portable machine for turning the brake flanges at the ends of a drum of a draw works, said machine comprising:

(a) two similar and longitudinally aligned machining components adapted for removable mounting in spaced fixed position,

(b) a drive component adapted for non-secured position relative to the draw works,

(c) an articulated driving connection from said drive component to one of said machining components, and

(d) a telescopically extensible drive connection between the machining components to permit selective longitudinal spacing of the machining components.

2. In a portable machine according to claim 1 in which the articulated driving connection from said drive component to one of said machining components is in the form of a flexible shaft.

References Cited by the Examiner UNITED STATES PATENTS 585,836 7/1897 Sweet 828 X 759,644 5/1904 Sturtevant 824 X 1,085,710 2/1914 Tyler et al. 824 1,857,457 5/1932 Kimmel 824 2,142,882 1/1939 Benzon 828 2,145,194 1/1939 Backer 824 2,434,498 1/1948 Klassett 824 X 2,492,596 12/1949 Ross 824 ANDREW R. JUHASZ, Primary Examiner.

HARRISON L. HINSON, WILLIAM W. DYER, 1a.,

Examiners.

Claims (1)

1. A PORTABLE MACHINE FOR TURNING THE BRAKE FLANGES AT THE ENDS OF A DRUM OF A DRAW WORKS, SAID MACHINE COMPRISING: (A) TWO SIMILAR AND LONGITUDINALLY ALIGNED MACHINING COMPONENTS ADAPTED FOR REMOVABLE MOUNTING IN SPACED FIXED POSITION, (B) A DRIVE COMPONENT ADAPTED FOR NON-SECURED POSITION RELATIVE TO THE DRAW WORKS, (C) AN ARTICULATED DRIVING CONNECTION FROM SAID DRIVE COMPONENT TO ONE OF SAID MACHINING COMPONENTS, AND

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