4results about How to "Reduce output force" patented technology

The utility model discloses an energy-saving efficient linear motion tool which comprises a machine shell and a linear motor, and the linear motor transmits power to an output assembly. The output assembly comprises an output support and an output acting piece. An energy storage mechanism, a locking and releasing mechanism and a locking and releasing triggering mechanism are arranged in the machine shell; the lock-release triggering mechanism triggers the lock-release mechanism to release the output assembly to do work, and the lock-release mechanism and the lock-release triggering mechanism are automatically reset; during forward acting, the linear motor drives the output assembly to move, and the spring force of the energy storage mechanism is superposed with the motor driving force; and during return stroke, the linear motor drives the energy storage mechanism to store energy, and the locking and releasing mechanism is locked at the limiting position for energy locking. The utility model has the beneficial effects that the energy storage mechanism is used for storing energy, and the energy is superposed with the positive force of the linear motor, so that the positive acting force and the acting speed are improved, the acting time is shortened, and the acting efficiency and the acting frequency are improved; output force and energy supply of forward acting of the linear motor are reduced, and the size and cost of the linear motor are indirectly reduced.

The invention relates to the technical field of valves, and particularly discloses a pre-opening type structure regulating valve which comprises a valve body shell and a valve cover, the valve cover is fixed to the upper end of the valve body shell through bolts, a water inlet is formed in one end of the valve body shell in an upwards-inclined mode, and a water outlet is formed in the other end of the valve body shell in a downwards-inclined mode. A second cavity is formed in the inner end of the water inlet, a first cavity is formed in the inner end of the water outlet, and the first cavity is communicated with the second cavity. Elements for controlling fluid flow in the pre-starting valve rod assembly are fixedly connected instead of movably connected in a traditional structure, so that the problem of fluctuation of operating parameters is solved; the main sealing pair and the pilot sealing pair adopt metal hard sealing instead of a sealing ring, so that the valve is scouring-resistant and wear-free, the sealing reliability of the valve is greatly improved, and the service life of the valve is greatly prolonged; most unbalanced force is balanced, the valve is easy to operate, and the required output force of the actuator is greatly reduced, so that the cost of purchasing the actuator is reduced, and meanwhile, the energy consumption of the valve is also reduced.

The invention provides an embedded resistance rudder movement mechanism of an unmanned aerial vehicle and a wing, and belongs to the technical field of unmanned aerial vehicles, the resistance rudder movement mechanism comprises a driving steering engine, an upper connecting rod and a lower connecting rod, the driving steering engine comprises a fixed end and a telescopic end, and the fixed end is used for being hinged to a front beam of the wing; one end of the upper connecting rod is hinged with the telescopic end, and the other end is hinged with the lower surface of the resistance rudder; one end of the lower connecting rod is hinged to the telescopic end, and the other end is hinged to a lower skin of the wing. The resistance rudder movement mechanism can drive the resistance rudder to be opened and closed through stretching and retracting of the driving steering engine, dead points cannot be encountered in the driving process, smooth rotation of the resistance rudder can be guaranteed, after the resistance rudder is closed, the upper connecting rod and the lower connecting rod can be folded to be completely embedded into the wing box, and a fairing does not need to be additionally arranged. Under the condition of large-angle unfolding of the control surface, the equivalent force arm for driving the steering engine is large, the output force of the steering engine can be effectively reduced, and the size of the steering engine is reduced.

The utility model discloses a kind of lifting type water conservancy gate for water conservancy project design, it is related to water conservancy engineering equipment technical field. Including substrate, lifting assembly, set in substrate top, for driving gate plate to lift, suspension assembly, set in vertical support inner side, for assisting support to gate plate. The utility model can be assisted support to hanging rod by setting support plate, under the cooperation of support plate and hanging rod, can reduce the force required by rope to gate plate output, and then reduce the load of motor, reduce mechanical energy consumption, and under the control of push rod, can drive push plate to rotate around fixed rod, to be able to control the appearance and hiding of support plate, when gate plate is in closed state, can guarantee that support plate is located in the groove on vertical support, i. e. control push plate and vertical support coincide, guarantee the normal operation of gate, improve the reliability of water conservancy project.