FIELD: mechanical engineering. SUBSTANCE: shock-absorber includes a cylindrical shell filled with a filler and provided with pistons arranged from both sides of the filler. In addition, shock- absorber has bushings which are in contact with the shell. The shell and bushing are made of a material having low friction coefficient. Shear rigidity of material of bushings and filler is defined by a relationship available in the invention description. EFFECT: improved design. 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DRILL STRING VIBRATION DAMPENER | 1991 |
|
RU2015295C1 |
| BOTTOMHOLE SHOCK ABSORBER | 1992 |
|
RU2088741C1 |
| DRILLING STRING OSCILLATION ABSORBER | 0 |
|
SU1073429A1 |
| DRILLING SHOCK-ABSORBER | 0 |
|
SU842189A1 |
| DRILL STRING SHOCK-ABSORBER | 0 |
|
SU1006701A1 |
| DRILLING SHOCK-ABSORBER | 0 |
|
SU842188A1 |
| SHOCK ABSORBER | 0 |
|
SU1747757A1 |
| ELASTIC MEMBER | 0 |
|
SU1262152A1 |
| SHOCK ABSORBER | 0 |
|
SU1104319A1 |
| BOTTOMHOLE BUMPER | 0 |
|
SU1828905A1 |
