44results about How to "To achieve the purpose of braking" patented technology

The invention provides a strong wind resistant small-sized wind driven generator; and the strong wind resistant small-sized wind driven generator comprises a power generator spindle, a blade, a shell, a power generator rotor and a power generator stator, wherein the blade is fixed on the power generator spindle; the shell is used for supporting the power generator spindle by a bearing; the shell comprises a stator shell as well as a front end cover and a back end cover; the front end cover is positioned at the front end of the stator shell; the back end cover is positioned at the back end of the stator shell; the power generator stator is positioned in the shell and fixed on the power generator spindle; corresponding to the power generator rotor, the power generator stator is fixed on the internal surface of the stator shell of the shell; the strong wind resistant small-sized wind driven generator is characterized by further comprising a controller and a mechanical electromagnetic brake, which are connected with each other; the mechanical electromagnetic brake is mounted on the power generator spindle; and the controller is used for controlling the mechanical electromagnetic brake to brake. The strong wind resistant small-sized wind driven generator provided by the invention cannot be forced to operate when being blown by strong wind, so that the safety of the small-sized wind driven generator is ensured.

The invention discloses a convenient, light-weight and adjustable large-tonnage cable laying apparatus. A shaft rod is arranged at the upper ends of two side brackets; the shaft rod is provided with a cable drum; a guiding sleeve is arranged at the upper end of each side bracket separately; a lifting rod is arranged in each guiding sleeve in a sleeving manner; the lower end of each lifting rod is connected with a piston rod of a hydraulic cylinder; the upper end of each lifting rod is connected with the lower end of a bearing support; the shaft rod is provided with two bearings which are placed in upper end grooves of two bearing supports respectively; a brake wheel disc is mounted at one end of the shaft rod; the bake wheel disc is matched with a brake mechanism; the brake mechanism comprises a brake sheet and a screw crank arm; a positioning hoop is arranged on the shaft rod at the other end of the cable drum; and the shaft rod is provided with an arm shifting rod. The convenient, light-weight and adjustable large-tonnage cable laying apparatus is convenient and light-weight in operate; after the bearings and the fixed loop are mounted, the mechanical friction is almost zero; and the drum rotates freely and uniformly without generating noise, so that the problem of left and right swinging of the drum is solved.

The invention provides a strong breeze resisting minitype wind driven generator which comprises a generator main shaft, a blade, a shell, a generator rotor and a generator stator, wherein the blade is fixed on the generator main shaft; the shell supports the generator main shaft through a bearing; the shell comprises a stator shell, a front end cover which is positioned at the front end of the stator shell and a rear end cover which is positioned at the rear end of the stator shell; the generator rotor is positioned in the shell and fixed on the generator main shaft; the generator stator is fixed on the inner surface of the stator shell of the shell, corresponding to the generator rotor. The wind driven generator is characterized by also comprising a controller and a mechanical electromagnetic brake which are connected, wherein the mechanical electromagnetic brake is installed on the generator main shaft; and the controller is used for controlling the mechanical electromagnetic brake to brake. The strong breeze resisting minitype wind driven generator provided by the invention can not be forced to rotate by strong breeze, thus the safety of the minitype wind driven generator is ensured.

The invention relates to a framework device for wind collection power generation of a direct-drive accelerated type narrow tube. The framework device comprises a hub type component. One end of the hub type component is fixedly connected with the inner ring of a swing bearing. The other end of the hub type component is fixedly connected with one end of a tubular support. A tubular supporting hoop is arranged on the periphery of the tubular support in a matched manner. One end of the tubular supporting hoop is fixedly connected with a reinforced composite bridge through a gasket and a fastener. One end of a double-rail structure frame is fixedly connected with the tail portion of the reinforced composite bridge, and the other end of the double-rail structure frame is connected with the hub type component in a clamping manner. The end, connected with the hub type component, of the tubular support penetrates the reinforced composite bridge. According to the framework device, damage possibly caused by turbulent flow and gust vibration in the whole machine operation process is avoided, the key function is achieved on decomposing and eliminating of gravity loads, and the framework device is as firm as a rock even in severe wind conditions; and the framework device effectively adapts to application and popularization of large-power wind generation type wind power generators in the future.

The invention relates to the field of braking of new energy vehicles, in particular to a push-down emergency braking device and a braking method for new energy vehicles, including a base plate, a motor top plate, a mounting plate, a servo motor, a rotating shaft, etc.; the back side of the top surface of the base plate A motor top plate is fixedly installed, a mounting plate is fixedly installed in the middle of the base plate, a servo motor is fixedly installed on the rear side of the top surface of the base plate, the servo motor is located below the motor top plate, and a rotating shaft is arranged inside the servo motor. Through the cooperation of the first-level friction deceleration ring and the second-level friction deceleration ring, the first-level friction deceleration ring and the second-level friction deceleration ring are in contact with the fixed turntable to act as deceleration brakes, so that the fixed turntable and the rotating shaft decelerate and stop, and at the same time avoid The rotating shaft is worn, thereby increasing the service life of the servo motor.

The invention discloses a vehicle speed limiting method and system based on a retarder. The vehicle speed limiting method comprises the following steps that vehicle speed limit torque is obtained, meanwhile, set calibration values are pre-stored, and / or vehicle speed and vehicle speed limit are obtained, in addition, a first vehicle speed calibration value is set, and the retarder is turned on when at least one condition in the following two conditions is met, wherein according to the first condition, the vehicle speed limit torque is smaller than the torque calibration values; according to the second condition, the vehicle speed is larger than the sum of the vehicle speed limit and the first vehicle speed calibration value. According to the vehicle speed limiting method and system, the controller automatically turns on the retarder according to the vehicle speed and / or the vehicle speed limit torque so that the purpose of braking can be achieved when the function of the maximum vehicle speed limiting fails, in this way, the driving safety of a vehicle is improved, and braking for a long time is also avoided.

Disclosed is a full-power acceleration type impeller and architecture system, comprising an impeller acceleration system, a generator (21) and an architecture system. The impeller acceleration system converts external wind energy into the rotational kinetic energy and transmits the rotational kinetic energy to the generator (21), and the generator (21) converts the rotational kinetic energy into the electrical energy output by the system. The system improves on the imperfections of the narrow pipe wind-gathering power generation technology and the direct-driven acceleration type mechanical impeller structure, increases the compatibility, safe reliability, stability and service life of an enhanced composite bridge-type rigid crosslinking installation platform structure system, and reduces the volume, weight and cost of the generator.

The invention discloses a reset slide valve type rocker arm mechanism for engine braking and a braking method thereof. The reset slide valve type rocker arm mechanism for engine braking comprises a control mechanism, an oil filling mechanism, a rocker arm body and a driven mechanism, wherein the rocker arm body is provided with the control mechanism, the oil filling mechanism and the driven mechanism. According to the braking method, the switching of the working modes of an engine is controlled by controlling on-off of an external electromagnetic valve; when the electromagnetic valve is switched on, the engine enters the braking mode, a control valve core in the control mechanism is pushed by high-pressure oil to move downwards, and then a slide valve core is further made to move downwardsunder the action of spring force to isolate an oil supply channel from a pressure oil channel; and the driven mechanism forms a closed space and is pushed to move by oil in the oil channels in the closed space under the action of a cam, and then an exhaust valve directly connected with the driven mechanism is opened to release compressed gas, so that effective engine braking is generated, and thespeed of a vehicle is slowed down. The reset slide valve type rocker arm mechanism for engine braking is high in integration level, simple to control, and reliable and effective.