Walking beam guardrails capable of adjusting balance of walking beams of pumping unit

• Main Authors: ZHANG FANG, LIU AIJU, JIA SHUKAI, CAO LAN, WANG SHUANG
• Format: Patent
• Language: Chinese; English
• Published: 02.07.2014
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The utility model relates to walking beam guardrails capable of adjusting the balance of walking beams of a pumping unit. The two walking beam guardrail sets are arranged on the walking beams on the two sides of a support respectively. Each walking beam guardrail comprises a U-shaped upper cover, a U-shaped aluminum alloy lower cover, folding plates, guardrail bodies, an idler wheel, a shaft rod and bolts, wherein the idler wheel is arranged in a groove of the upper cover, the corresponding walking beam is fastened into a folded groove hole by the upper cover and the lower cover through the bolts, the folding plates are connected with the two sides of the corresponding walking beam parallel to the upper cover through hinge rotating shafts, the side plate faces, away from the upper cover, of the folding plates are provided with guardrail fixing holes and connected with the guardrail bodies in a threaded mode, stop pins are arranged at the bottoms of the guardrail bodies, the width of a groove of the lower cove