192 clutches and power-stop control – Vortex-flow drive and clutch – With brake
Patent
1980-06-30
1982-10-12
Krizmanich, George H.
192 clutches and power-stop control
Vortex-flow drive and clutch
With brake
474150, B60K 4120
Patent
active
043534457
ABSTRACT:
A toothed belt drive transmission for pumping units in the oil field which includes a frame and base fitted with a drive pulley on a drive shaft, intermediate and crank shafts, and tandem-mounted belt sprockets with cooperating toothed belts for transmitting power from a drive source to the walking beam of a pumping unit. A conventional drive pulley is carried by a drive shaft rotatably mounted on the pumping unit frame and driven by a motive force by means of one or more V-belts. A drive belt sprocket is also mounted on the drive shaft above and in alignment with an intermediate-to-drive belt sprocket which is mounted on an intermediate shaft, and cooperates in rotation with the drive belt sprocket by means of a first toothed belt. The intermediate shaft is journalled for rotation in the frame and carries an intermediate-to-crank belt sprocket which is aligned with a crank belt sprocket of larger diameter than the intermediate-to-crank belt sprocket, and is rotatably mounted on a third shaft. The crank belt sprocket cooperates with the intermediate-to-crank belt sprocket by means of a second toothed belt, and the third shaft is provided with crank arms and pitmans, the latter of which are pivotally carried by the walking beam to effect reciprocation of a wireline bridle attached to the pumping unit horsehead.
REFERENCES:
patent: 2310393 (1943-02-01), Carter
patent: 2579112 (1951-12-01), Fullerton
patent: 3828844 (1974-08-01), Kitano
patent: 4175645 (1979-11-01), Brinkert
patent: 4238966 (1980-12-01), Carlson et al.
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