SU964235A1 - Well sucker rod pump drive - Google Patents

Description

one

The invention relates to a technique for the extraction of oil, in particular to drives for sucker rod pumps and can be used in oil production.

A well-known drive of a borehole sucker-rod pump, comprising a frame with driving and driven pulleys, covered in pairs by flexible links connected by a lever, as well as guides and a carriage connected by a flexible pull to a column,

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The disadvantages of this drive are low efficiency due to the loss of energy to overcome friction in the rubbing pair j carriage - guides, nseka durability due to wear of the carriage pair - guides, leading to loosening and vibration of the drive during operation, and large its metal consumption is 20 bones. .

The purpose of the invention is to increase the durability and efficiency of the drive and reduce its metal consumption.

This goal is achieved by the fact that the drive pulleys are made with a counter-rotating arm, and the lever is connected to the flexible links by means of fourth-type hinges.

Nafig 1 is a schematic representation of the drive of a well sucker-rod pump; in fig. 2 - the same, top view; in fig. 3 shows the node I in FIG. one; in fig. 4 - node P in FIG. one.

Drive well {th pump (Fig. 1 and 2) contains, frame 1, made in the form of a cylinder mounted on a column flange - 2. Inside frame 1 are placed leading 3 and 4 and slave 5 and 6 shchishl (asterisks), covered in pairs by flexible by links 7 and 8 (chains) connected by means of four-fourth and 1O joint of the fourth kind with lever 11 connected to column of rods 12 and flexible pull 13 with an outer weight 14. On the frame 1 there is also a pulley 15 through which it is thrown bending ha ha 13, electrodevgatel 16 and mechanism 17, secured 39642354

Claims (1)

look for counter-rolling of the pulleys 18 and 19, mixed from an ositelno-lever 11. connected by flexible links 2O and 21 with C – yuly (along its axis) displacements 22 and 23, transmitted by driving to the driving pulleys 3 and 4 by means of Banq 24 and 25 As a chimera, the mechanism 17 (Fig. 2) is ngafnen in the form of three bevel gears 26, 28 connected, respectively, with the shaft of the electric motor 16 and the pulleys 18 and 19. The connection of the lever 11 with the column rods 12 and the flexible link 13 ( Fig. 3) is rotated with the possibility of rotation, by means of the sub 29, installed in the center of the lever 11 in the ball gashikas 30 .. Hinges 9 and 10 of the fourth kind, which connect the lever 11 with flexible links 7 and 8, are equally spaced and contain (Fig. 4) the housing 31 mounted on the flexible link 7 and 8 and the ball 32 located therein a hole (not indicated) through which the end of the lever 11 is passed. The drive operates as follows. The lever 11 is installed in the lowest or highest position, turn on the electric motor 16, the rotation of the shaft of which is transmitted through a conical gear and 26 conical gears §27 and 28. At that, the latter rotate in the opposite direction and through the corresponding shafts the pulleys 18 and 19, transmitting the rotation through flexible shears 20 and 21 to the pulleys 22 and 23 and through shafts 24 and 25 to the driving pulleys 3 and 4, which bring the flexible links 7 and 8 into reciprocating motion. The hinges 9 and 10 are on the branches. links ev 7 and 8 moving in about bottom, and the lever 11 is set in motion, which, when moving between the leading 3 and 4 and the driven 5 and 6 pulleys, occupies a diagonal position (flash 2). When pulleys 3 and 4 or 5 and 6 pass, lever 11 rotates around its center, while the distance between hinges 9 and 10 changes and the last lever 11 is limited by the wall of frame 1, which is in the form of a cishdr with Ø1 of neutral diameter equal to the length of the lever 11. Thus, when the lever 11 moves, its center, with which the column of rods 12 and the counterweight 14 connects, performs a pure reciprocating motion, and when the ends of the lever 11 pass through the linear sections of the flexible links 7 and 8, the column of rods 12 are connected with center the lever 11 moves evenly, and when the pulley lever 11 passes, the direction of movement changes according to a harmonic law. The application of the invention allows to increase the efficiency and durability of the drive, reduce energy consumption during its operation by eliminating additional moving masses and friction pairs (for example, carriage - guides), as well as reducing the labor costs of servicing squaldan. In addition, the invention will significantly reduce the metal consumption of the drive due to the exclusion of guides and carriage from the design. All of this, in general, increases the efficiency of production wells with sucker-rod pumps. The claims drive downhole sucker rod pump, comprising a frame with leading and WEDO: mymi pulleys pairwise covered flexible link means, coupled lever, wherein MGO in order povsh1eni durability and efficiency and reducing metal 1, the drive pulleys vshopnen counter-rotating, and the lever is connected to flexible links by means of hinges of the fourth kind. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 5145О7, cl. F 04 B 47 / O2, 1971.