Research Article
Analytical Study of Operational Properties of a Plate Shock Absorber of a Sucker-Rod String
Figure 1
The elastic suspension of the polished rod: 1, additional traverse; 2, ropes; 3, upper traverse; 4, clamps for the ends of the rope; 5, the lifting screws for the upper traverse; 6, lower traverse; 7, adjusting nut; 8, shock absorber; 9, pistons; 10, polished stem; 11, fixing nut; 12, locknut.