US1741140A - Rotary rig - Google Patents

Description

Dec. 24, 1929. H PENNINGTON 1,741,140

ROTARY RIG Filed April 6. 1925 4 Sheets-Sheet l wxh, www

Dec. 24, 1929. H. PENNINGTON ROTARY RI G AFiled April 6, 1925v 4 Sheets-Sheet 2 Dec. 24, 1929. H, PEMWNGTQNv v 1,741,140

ROTARY RIG Filed April 6. 1925 4 Sheets-Shea?l 5 l( 9 ZZ ,Z6 'Z5 .www

Dec; 24, 1929. H. PENNxNGToN ROTARY RIG Filed April 6. 1925 4 sheets-Sheet 4 Patented Dee. 24, 1929 HARRY PENNINGTON, or HOUSTON, TEXAS ROTARY RIG- Application leu April e,

This invention relates to rigs for drilling wellsand more particularly to rotary rigs.

An object of the invention is the provision of a portable rig in which an internal combustion engine may be employed as a prime mover, having sufficient flexibility to permit any of the driven elements to be run at a desired speed.

A further object is to provide means forvarying the speed of the pump, hoist or rotary apparatus independently of any of the others whereby any desired apparatus may be runat low or high speed While one of the other driven parts is run at high or low speed. A further object of the invention is the provision of a rig which will reduce the cost of operation and which may be readily moved from place to place. j

By means of the construction provided, the pump, hoist or rotary maybe driven at a high or low speed, as desired. This permits variation in the speed of operation of the driven part at maximum engine efficiency. It will be apparent that a variation in the speed of the hoisting apparatus according to the load being raised, is highly desirable. By permitting variation in the speed of the rotary, the-apparatus is adaptable for the purpose of drilling holes. of various diameter and in various earth formations.

In the accompanying drawings, J I have shown one embodiment of the invention. In this showing:

Figure 1 is aside elevation of the rig in position on the base of a derrick, parts being shown in section, i

Figure 2 is a plan view,

f Figure 3 is a vertical sectional view of the transmission substantially on line 3 3 of 4o Figure 2,

Figure 4 is a vertical transverse view on line 4 4 of Figure `3,

Figure 5 is a transverse sectional view substantially on line 5 5 of Figure 2, showing the transmission casing in' rear elevation,

and

Figure 6 is a transverse vertical sectional viewl on line 6 6 of Figure 3.

In constructing the rig, it 1s preferably mounted on a frame and provided with tracsectional similar to a trailer when being moved from 1925. Serial No. 21,081.

tion Wheels whereby it may be transported from place to place. As shown, I provide a frame consisting of longitudinal members 1 connected by suitable transverse members and supporting a prime mover 2, such as an internal combustion engine at its forward end. Supplemental longitudinal frame members 3 are arranged adjacent the rear, and a portion of these members is inclined inwardly, as at 4, and secured to the main longitudinal frame members, as at 5. An axle 6 is arranged beneath the frame and is provided withsuitable traction Wheels 7 The device, as shown, is adapted to be pulled in a manner place to place, but may be provided with ad- Y ditional traction wheels if desired. At the rear of the engine, there is provided a clutch casing 8 having a suitable clutch (not shown) arranged therein, and controlled by a clutch lever 9. A drive shaft 10 extends rearwardly from the clutch casing `and is received in a transmission casing 11. As shown, (see Figure 3) the transmission casing is provided with a removable cover 12 to permit access to 75 the interior and the ends of the drive shaft are mounted in suitable bearings 13 in the front and rear walls of the casing. Drive gears 14, 15 and 16 are arranged on the drive shaft within the transmission casing and are secured thereto in any suitable manner to revolve therewith.

As the rotary rig is provided with three driven elements, Ilprovide three driven shafts 17, 18, and 19, which may be arranged around the drive shaft in a triangle, as shown in Figure 6 of the drawings, with the drive shaft forming the center of the triangle. These shafts are squared in cross section, as shown, and suitable clusters of gears 2O are mounted on these shafts to permit relative longitudinal movement and prevent relative rotation. The shaft 17 is connected to the draw works or hoisting apparatus, the shaft 18 isA connected to the rotary, and the shaft 19 is connected to the pump.v As shown, the gear cluster 20 is provided with gears 21, 22 and 23 of different diameters to mesh with the ' gears 14, 15 and 16|on the main shaft and permit desired changes in the speed ratio behousing.

26 on the various gear clusters.

transmission casing and these levers are provided with shifting members 25, the ends ofl which are adapted to be received in grooves The gear shifting levers may be provided with spaced depressions 27 adapted to be engaged by a spring 28 to retain the gears in position and prevent accidental disengagement. The oiiter ends of the gear shifting levers are provided with suitable joints 29 to which links or levers (not shown) may be connected and extended to any suitable point on the rig.

The shaft 17 is mounted in suitable bearings 30 in the end walls of the transmission housing and this shaft projects from the main housing into an auxiliary housing 31. As shown, the rear side of the auxiliary housing is provided with a removable plate 32. Within the auxiliar housing, vided with a b,

-mesh with a bevel gear 34. This gear is carried by a hub/35 mounted on a shaft 36, and the shaft is arranged in suitable bearings 37 in the side walls of 'the auxiliary transverse As shown (see Figure 2), the shaft projects beyond'the ends of the auxiliary transmission housing and is provided with a pinion 38 meshing with a gear 39 on drum shaft 40. The drum shaft is supported in suitable pedestals 41.

' When the rig is in position, it is arranged over aderrick sill 42 and the front end of the frame of the rig is supported by suitable blocks 43. The frame is provided with'a transverse member 44 arranged beneath the bearing pedestals 41 and adapted to rest upon one ofthe transverse members'of the derrick sill. This member secures the pedestals in an operative position and further insures proper alinement of the frame when resting on the derrick sill, thus preventing the bearing from being misalined.

The drum shaft is provided with a drum 45 :of the usual construction, and a suitable clutch (not-shown) is arranged between the drum and the shaft and controlled by 'a clutch lever 46. The drum is also provided with a suitable brake consisting of a brake drum 48 and a brake band 49. This band is provided with suitable connections (not shown) to a brake lever 50 to permit actuation of the brake'.v

' The shaft 18 projects from the rear of the transmission housing and extends longitudinally of the frame, as shown in Figure 1 of the drawings. This shaft extends beyond the rear transverse member 51 of the frame and the shaft 17 is pro- 'I eveled pinion 33 adapted to is provided with suitable universal joints 52 and 53 to permit the extreme end of the shaft to be properly arranged and secured to a rotary 54 of the usual construction. The shaft may also project from the front of the transmission casing, as at 55 (see Figure 2) to drive any suitable auxiliary apparatus.

The shaft 19 likewise projects from the rear of the transmission casing, as shown in Figure 2 of the drawings, and the rear end of this shaft is mounted in a suitable bearing carried by the rear transverse member 51 of the frame. Beyond the bearing, the shaft is provided with a pinion 57 adapted to mesh with a gear 58 carried on the shaft of a pump 59. This shaft may also project from the front of the transmission casing, as indicated at 60.

1n Figure 5 of the drawings, 1 have shown means for supporting the transmission casing consisting of a transverse member 61 having suitable upright members 62 at each end. These upright members are secured to the longitudinal si e frame members 1 as shown, and the upper ends of these members are connected by a downwardly inclined transverse member 63 which engages the under side of the transmission housing.

The operation of the device will be apparent from the foregoing description. The engine 2 or other prime mover is operated to rof tate the main drive shaft 10. By bringing the gear 22 of any of thevclusters of gears into engagement with the pinion 15 on the drive shaft, the corresponding shaft 17, 18 or 19 may be drivenat low speed. Similarly, intermediate speed may be obtained on any of the driven shafts by bringing the gear 23. into mesh with the drive pinion 16 and high speed obtained when the gear 21 and the pinion 14 is in mesh. As stated, any of the clusters of gears may be moved longitudinally of its shaft independently of the remaining clusters of gears through its gear shift lever 24 and this permits any one of the'driven shafts to be driven at a high or low speed, as desired and any of the remaining driven shafts to be driven at a desired speed different from thespeed of the first shaft.

In order to present maximum efiiciency, it is necessary that a rig have sufIicient exibility in operation whereby the speedof any of the driven parts may be varied at the will of the operator independent ofthe speed of the engine, whiclrpermits a change in the speed ofone of the drive elements without affecting the speed of another driven element and the transmission forming a part of the present apparatus is designed for this purpose. Under certain conditions, it is necessary to drive the rotary at a low rate of speed be vdriven at a much higher rate of speed I and drilling accomplished in much less time. It is frequently necessary when increasing the speed of the rotary, to decrease the speed of the pump and this result can be readily obtained with the present construct-ion.

The portability of the apparatus permits its ready removal from one location to another and materially reduces the time necessary kin accomplishing this result. The amount of fuel employed and the amount of water. necessary in the operation of the device, when supplied with an internal combustion engine, is materially less than that employed in steam rigs and the ease of removal from one point to another is a material advantage over the ordinary steam rig construction.

It is to be understood that the form of my invention herewith shown and described is .to

be taken as a preferred example of the same, and that various changes in the shape, size,

and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.

I claim:

l. In a rotary rig comprising a source of l power, the combination of a rotary member operatively connected to said source of power, a pump operatively connected to said -source of power, and means for varying the Voperatively connected to said source of power, a pump operatively connected to said source of power, a hoist operatively connected to said source of power, and means for varying the speed ratio of any one of said members and said source of power independently of the other members.

4. In a rotary rig comprising a power shaft, the combination of a rotary member, a pump, a hoist, and gearing connecting said power shaft to said rotary, pump and hoist, said gearing being provided with variable speed ratios whereby the speed ratio of said rotary, said pump or said hoist to said power shaft may be varied independently of each other. p

5. In a rotary rig comprising a frame and an engine mounted on said frame, the combination of a drive shaft connected to said engine, a plurality of driven shafts mounted on said frame and arranged around said drive shaft, gearing connecting each of said driven shafts to said drive shaft to drive all of said power independently of -the shafts simultaneously, and means for varying the speed of any one of said driven shafts independently of the other driven shafts.

.6. In a rotary rig comprising a source of power, the combination of a drive shaft connected to said source of power, a driven shaft connected to a rotary member, a driven shaft connected to a hoisting apparatus, a driven shaft connected to a pump, gearing connecting each of said driven shafts to said drive shafts to drive said rotary, hoisting apparatus and pump simultaneously, and means for varying the speed ratio of any one of said members and said source of power independently of the other members.

In testimony whereof, I aix my signature.

HARRY PEN N INGTON.

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