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A long-stroke direct-drive pumping unit with dual braking and counterweight anti-falling functions

It is a technology of anti-falling and long-stroke, which is applied in the direction of mining fluid, wellbore/well parts, earthwork drilling and production, etc. It can solve the problems of high cost, few standard accessories, poor safety, etc., and achieve high working efficiency, short transmission path, The effect of increasing effectiveness

Active Publication Date: 2018-01-09
山东高原油气装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

"Outer rotor permanent magnet motor cluster well pumping unit" (publication number CN202707001U), "motor for tower pumping unit and its tower pumping unit" (publication number CN101719702), "ultra-low speed and high torque special-shaped motor drag tower Stand-type high-efficiency and low-consumption intelligent pumping unit” (public number CN1840904B) all need to adopt special motors, which have the disadvantages of few standard parts, high cost, and difficulty in replacement and maintenance; “a tower type digital pumping unit” (public number CN2511789Y ) adopts the form of ordinary asynchronous motor driving the reel after being decelerated by the hard-tooth surface reducer, and the top structure size and weight are large
At the same time, the above-mentioned pumping unit has no auxiliary braking mechanism and counterweight anti-falling mechanism, and the safety is relatively poor.

Method used

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  • A long-stroke direct-drive pumping unit with dual braking and counterweight anti-falling functions
  • A long-stroke direct-drive pumping unit with dual braking and counterweight anti-falling functions
  • A long-stroke direct-drive pumping unit with dual braking and counterweight anti-falling functions

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Embodiment Construction

[0048] The present invention will be further described now in conjunction with accompanying drawing.

[0049] combine figure 1 , the long-stroke direct-drive pumping unit provided by the present invention. It includes rear base 1, frame 2, counterweight box 3, counterweight belt 4, wellhead belt 5, power unit 6, guardrail 7, diagonal brace 8, control cabinet and other parts.

[0050] The wellhead belt 5 of the long-stroke direct-drive pumping unit in this embodiment is centered and is a flame-retardant rubber belt with a width of 360mm. One piece is fixedly wound on the large reel, and the lower end is connected to the wellhead polished rod; the counterweight belt 4 is symmetrically installed on the wellhead Belt both sides, width 180mm, two, opposite direction is fixedly wound on the large reel, and the lower end is connected with counterweight box 3. The belt and the large reel are fixed by means of bolts and pressure plates. The control cabinet is installed on the rear b...

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Abstract

The invention discloses a long-stroke direct-drive pumping unit with double braking and counterweight anti-falling functions. The motor of the power device drives the built-in reducer installed in the reel to drive the reel to rotate in the forward and reverse directions. Dual braking functions of motor braking and electro-hydraulic braking. The reel is fixed and wrapped with the wellhead belt, bypassing the guide reel that can move back and forth to connect the wellhead polished rod; the reel is fixed in the opposite direction and wound with the counterweight belt to connect with the anti-falling counterweight box in the frame; the load of the wellhead polished rod and the counterweight form a balance balance . The pumping unit of the invention has the characteristics of simple transmission form, safety and reliability.

Description

technical field [0001] The invention relates to the field of oil production equipment in oilfields, in particular to a long-stroke direct-drive pumping unit with double braking and counterweight anti-falling functions. Background technique [0002] With the increase of oilfield development time, the formation pressure gradually decreases, and the artificial lift dominated by the beam pumping unit plays a dominant role. The motor is decelerated by a two-stage hard tooth surface reducer, and drives the crank connecting rod mechanism to complete the up and down stroke work. Due to the long transmission path and the low efficiency of the crank-link mechanism, the beam pumping unit consumes a lot of energy and has a large volume. [0003] In recent years, engineers and technicians have developed different types of tower pumping units. "Outer rotor permanent magnet motor cluster well pumping unit" (publication number CN202707001U), "motor for tower pumping unit and its tower pum...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/00
Inventor 朱新忠林传宏朱恒夏承宇潜凌
Owner 山东高原油气装备有限公司
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