| 摘要 |
This hydraulic circuit arrangement for stabilising the mechanical mine support consisting of a control block (1), the control module (11) of which, along with the controllers (12), is connected to the pressure branch (2) and to the output branch (20), double cock (9) and the hydraulic cylinders (6, 7, 8) has a control block (1) in the controlled section of the support. The branch (4) connecting the control module (1) to the piston-rod space (32) of the movable cylinder (3) is connected to the double check valve (5) with a logical OR function which, at the same time, is also connected to the controller (12). Between the double check valve (5) and the right stabilisation cylinder (6), left stabilisation cylinder (7) and the thrust cylinder (8) there is a double cock (9). The piston-rod spaces (61, 71, 81) of the cylinders (6,7,8) are mutually hydraulically coupled and connected directly to the controller (12).<IMAGE>
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