Injection head chain anti-shaking device

Abstract

The invention discloses an injection head chain anti-shaking device, which belongs to an auxiliary apparatus for petroleum oilfield exploitation and consists of a chain anti-shaking roller and a chain expanding oil cylinder. The chain anti-shaking roller consists of a shaft, a left shaft sleeve, a bearing, a bearing spacer sleeve, a bearing sleeve, a right shaft sleeve, an adjusting ring, a gasket and a nut, wherein a left big plate is clamped by one end of the shaft, the left shaft sleeve passes through the shaft to tightly support against the left big plate, two bearings are embedded in the bearing sleeve, the middle part is blocked by the bearing spacer sleeve, the left end of the bearing is blocked through the left shaft sleeve, the right end is blocked through the right shaft sleeve, the right shaft sleeve is contacted with the adjusting ring, the adjusting ring tightly support against a right big plate, and the other end of the shaft is fastened on the right big plate through the gasket and the nut. The chain expanding oil cylinder is arranged at the upper part of a lower chain wheel to support against the lower chain wheel so that the chain is longitudinally expanded, and the chain anti-shaking roller arranged inside an outer ring of the chain is tightly contacted with the chain to outwards prop the chain, thereby the chain is prevented from shaking.

Description

technical field [0001] The injection head chain anti-vibration device of the present invention relates to an auxiliary equipment for oil field exploitation. Background technique [0002] At present, the coiled tubing operation machine used in the oil field exploitation work integrates gas, liquid and electricity, has a complex structure and a high degree of automation, and is used for transporting and lifting coiled tubing. When the coiled tubing machine is working, the coiled tubing is wound and straightened on the reel again and again, and is lowered into the production tubing or casing in the well through the injection head to complete workover and other operations. The injection head is driven by two synchronous hydraulic motors that can run forward and reverse to drive the chain to drive the clamp block to clamp the coiled tubing and move up and down. The hydraulic motor is a low-speed high-torque radial piston motor with a brake protection device. The chain is attach...

AI Technical Summary

Problems solved by technology

[0003] In view of the problems existing in the above-mentioned prior art, the purpose of the present invention is to research and design a novel injection head chain anti-vibration device, so as to solve the problem that the chain is tightened by the joint action of the horizontal expansion cylinder and the horizontal clamping cylinder in the past, thus causing The width of the injection head is increased, which occupies a large area on the work vehicle, and at the same time has problems such as high cost and heavy weight

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