Quick Release Device for Unpin Guard

Abstract

The invention relates to a buckle-protecting fast demounting device for pin taking. The buckle-protecting fast demounting device for pin taking mainly solves the problem that a thread of a crank pin and the inner end face of a pin shaft are liable to being damaged in the existing demounting process of the crank pin of a pumping unit. The buckle-protecting fast demounting device for pin taking is characterized in that the interior of the right end of a body (1) is in threaded connection with a hammering block (2); the outer portion of the left end of the body (1) is connected with an eight-claw elastic clamping piece (10); the left end of the eight-claw elastic clamping piece (10) protrudes out of the end face of the body (1); the outer portion of the eight-claw elastic clamping piece (10) is connected with a hoop (3); and a tension bolt (8) is connected between the two ends of the hoop (3). By the adoption of the buckle-protecting fast demounting device for the crank pin, the thread of the crank pin and the end face of the pin shaft can be protected when the crank pin is demounted, equipment is protected against damage, and the stroke of the pumping unit can be adjusted.

Description

technical field [0001] The invention relates to the field of oil fields, in particular to a quick disassembly device for pin removal and protection buckles. Background technique [0002] In the oilfield production process, the crankpin needs to be disassembled when the crankpin is replaced or the stroke of the pumping unit is adjusted. At this time, a sledgehammer is needed to knock the crankpin out of the stroke hole. The damage of the end face will affect the parameter adjustment operation of the pumping unit and cause equipment damage. The current crank pin is difficult to disassemble, and the reasons for easy damage mainly come from two aspects: 1. The fit between the crank pin and the pin sleeve is tight: the crank pin, the pin sleeve, and the crank of the pumping unit are taper fit, because the taper fit has self-locking characteristics , In addition, the tightening force of the nut during operation is relatively large, and long-term use is likely to cause rusty locki...

AI Technical Summary

Problems solved by technology

[0002] In the oilfield production process, the crankpin needs to be disassembled when the crankpin is replaced or the stroke of the pumping unit is adjusted. At this time, a sledgehammer is needed to knock the crankpin out of the stroke hole. Damage to the end face will affect the pumping unit adjustment operation and cause equipment damage

The current crank pin is difficult to disassemble, and the reasons for easy damage mainly come from two aspects: 1. The fit between the crank pin and the pin sleeve is tight: the crank pin, the pin sleeve, and the crank of the pumping unit are taper fit, because the taper fit has self-locking characteristics , In addition, the tightening force of the nut during operation is relatively large, and long-term use is likely to cause rusty locking, so it is more difficult to disassemble the second time; 2. The hammer-type removal method is easier to damage the crank pin: due to the tight installation of the crank pin, During the second disassembly, most of them are taken out by hammering, but in the process of collision between the hammer surface and the crank pin, damage to the crank pin end face and thread is inevitable

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