69results about How to "Guaranteed power transmission" patented technology

The invention relates to the field of lighthouse generator set, and aims at providing a diesel generating set convenient to demount and mount and suitable for a movable lighthouse. The diesel generating set comprises a bearing vehicle body, and a damper is fixedly arranged on the outer wall of the top of the bearing vehicle body. A compartment is mounted at the top of the damper through a bolt, and a trunk is formed in the rear end of the compartment. Observation windows are formed in the outer walls of the two sides of the compartment, and side window glass plates are fixedly mounted in the observation windows. The bottoms of the outside of the two sides of the compartment are connected with vehicle tail caution lights facing the rear portion of the compartment through bolts. A compartment back door covering the interior of the trunk is arranged on the trunk through a rotary hinge and a diagonal rod. The diesel generating set has the beneficial effects that the diesel generating set is of a minibus-shaped formal structure, mounting of the diesel generating set is achieved, a diesel engine and the generating set are mounted and demounted conveniently by people, effect desired by people is achieve, and heat generated when the diesel engine and the generating set work can be fast reduced.

The invention discloses a gas-transfer type frost-resistant and high-temperature-resistant cable, which belongs to the field of cables. A gas-transfer type freeze-resistant and high-temperature resistant cable is provided with a self-drum cladding and an interlayer transfer line. When the temperature is high, the self-drum cladding expands when heated. , to drive the interlayer transfer line to move upward, so that the interlayer protective gas is filled with the self-bulging cladding from the flexible interlayer, which can effectively restrain and slow down the spread of external high-temperature heat into the core layer. At low temperatures, the self-bulging cladding returns to its original state. The interlayer transfer line is folded with each other on the outer surface of the inner sheath to form a temperature isolation layer, which can effectively suppress the leakage of the temperature generated by the cable itself when it is running, and can effectively isolate the low temperature invasion from the outside, thereby effectively ensuring the power transmission of the cable The efficiency is not easily affected by low temperature, and at high temperature, it can effectively prevent the high temperature from the outside from approaching the inner core layer, thereby effectively ensuring the normal power transmission function of the cable.

The invention provides an arc suppression switch which includes a base. A first binding post and a second binding post are respectively arranged on the two sides of the base. The first binding post is electrically connected with a nearby hinge mount used for hinging a cutter bar. The second binding post is electrically connected with a nearby conductive bayonet mount used for clamping the cutter bar. A cushion mount is arranged between the conductive bayonet mount and the hinge mount. A metal bayonet for clamping the cutter bar is arranged at the upper end of the cushion mount. The metal bayonet is connected in series with an inductor, and then electrically connected with the conductive bayonet mount. The height of the metal bayonet on the cushion mount meets the following condition: when the cutter bar is closed, the cutter bar contacts the metal bayonet of the cushion mount first, and then contacts the conductive bayonet mount. The switch can suppress arcs in the opening / closing process, and is of high safety.

The invention provides a double-cylinder pumping device hydraulic oil displacement control method, and further provides a double-cylinder pumping device and pumping equipment. According to the double-cylinder pumping device hydraulic oil displacement control method, from the moment a piston of a first main hydraulic cylinder or a piston of a second main hydraulic cylinder moves and reaches a predetermined position, a cavity with a rod and a cavity without a rod of the first main hydraulic cylinder and a cavity with a rod and a cavity without a rod of the second main hydraulic cylinder are respectively communicated for a first lasting time t1; from the predetermined position, each cavity with a rod and a corresponding cavity without a rod are divided for a second lasting time t3, and therefore hydraulic oil inside communicated cavities is displaced during the time interval which is the difference of the second lasting time t3 and the first lasting time t1. When oil displacement operations are conducted according to an oil displacement mode in the stretching and drawing process of the first main hydraulic cylinder and the stretching and drawing process of the second main hydraulic cylinder, the temperature of the hydraulic oil in the communicated cavities is detected, the first lasting time t1 and / or the second lasting time t3 is adjusted to change the span of the time interval, and therefore requirements for temperatures of working conditions are met. Oil displacement operations in the communicated cavities of the double-cylinder pumping device can be controlled in a relatively optimized mode through the double-cylinder pumping device hydraulic oil displacement control method, the double-cylinder pumping device and the equipment, and therefore the energy saving effect is achieved.