13 results about "Limit switch" patented technology

The invention discloses a supporting device and a supporting method for machining a propeller blade. The supporting device consists of a base and a vacuum sucker component positioned on the base, wherein the base comprises a bottom vacuum sucker, a chassis, a hydraulic cylinder and a piston rod, the middle of the bottom of the chassis is connected with the bottom vacuum sucker, the middle of the top of the chassis is provided with the hydraulic cylinder, the bottom end of the piston rod extends into the hydraulic cylinder, and the vacuum sucker component comprises a limiting switch, a spring, a support, a mandril, a positioning screw and a top sucker. The propeller blade is analyzed and calculated to determine the area in which the supporting device is positioned. For the propeller blade with the diameter less than 4 meters, supporting points of the supporting device are distributed at five positions of the propeller blade; and for the propeller blade with the diameter more than 4 meters, the supporting points of the supporting device are distributed at seven positions of the propeller blade. According to the invention, supporting can be quickly completed, and the stiffness of the supporting device and a supporting effect of the propeller blade can be improved.

A limit switch has a housing, a plunger that is supported in the housing while being vertically movable, a switch main body disposed in and fixed to the housing by the plunger, an operation shaft having an upper end thereof exposed from a ceiling surface of the switch main body, a contact that is opened and closed by driving the upper end of the operation switch, and a displacement expanding mechanism arranged between the switch main body and the plunger. The displacement expanding mechanism has a pair of pivoting tongue pieces rotatably supported by a pair of support shafts arranged in parallel with each other. A free end of one of the pivoting tongue pieces is abutted on the upper end of the operation shaft. A free end of the other pivoting tongue piece is abutted on an upper surface of one of the pivoting tongue pieces.

The invention discloses an intelligent type vertical freezing cabinet for milk beverages. The intelligent type vertical freezing cabinet comprises a vertical freezing cabinet body; the front surface of the vertical freezing cabinet body is connected with a cabinet door through hinges; a limiting switch is mounted at the inner side of the cabinet door; the cabinet door is provided with a transparent window in which a glass component is embedded; a negative oxygen ion generator is mounted at the left side of the vertical freezing cabinet body; an illuminating lamp and a sterilizing lamp are mounted at the internal upper side of the vertical freezing cabinet body; an active carbon adsorbing device is mounted at an internal side of the vertical freezing cabinet body; arranging plates are mounted inside the vertical freezing cabinet body. According to the intelligent type vertical freezing cabinet disclosed by the invention, a buzzer is mounted at the upper side of the vertical freezing cabinet body, a circuit board is arranged inside the vertical freezing cabinet body, a timer is arranged on the circuit board, the limiting switch is a signal source, and the circuit board is capable of driving an alarming circuit to supply power to the buzzer when the timer reaches a time preset by the system, so the aim of automatic alarming after the cabinet door is not closed for a long time can be realized, and the intellectuality of the intelligent type vertical freezing cabinet is improved.

The invention relates to a window and particularly relates to a window matched with air conditioner in use. The window comprises two window bodies, a window frame, a motor, a limiting switch, a relay,a PLC controller and an internal power supply of the air conditioner. The two window bodies are first and second window bodies, a rack is arranged at the upper end of the first window body, the motoris arranged at the upper end of the window frame, a gear engaged to the rack is arranged on a motor shaft, the second window body is fixed, and an exhaust port and an air inlet are formed in the second window body. The window matched with the air conditioner in use also comprises a control device. The control device comprises the limiting switch, the relay and the PLC controller. The control device is separately connected to the motor and the internal power supply of the air conditioner. By judging whether the air conditioner is started or not by means of the relay, the window is closed and opened; when the air conditioner is started, air can be exchanged indoors, so that the window is suitable for occasions such as offices, hotels and plants with relatively more windows.

The invention discloses a sealing unit of a limit switch packaging machine. The sealing unit of the limit switch packaging machine comprises a man-machine controller, a feeding and sealing mechanism and a screw bag vibrating mechanism, wherein the man-machine controller is mounted on a turntable rack of the feeding and sealing mechanism, and the screw bag vibrating mechanism is arranged on the rear side of the feeding and sealing mechanism; and the feeding and sealing mechanism further comprises a turntable device arranged on the turntable rack, a limit switch feeding device, a screw bag feeding device and a sealing device, and the limit switch feeding device, the screw bag feeding device and the sealing device are arranged at the periphery of the turntable device. Through the mode, the sealing unit can automatically, efficiently and tidily finish the packaging of limit switches instead of manual work, so that labor force is saved.

The invention discloses a hydraulic cylinder device capable of detecting whether the temperature a hydraulic cylinder exceeds a safe use threshold. The hydraulic cylinder device comprises a mounting base and is characterized in that the mounting base is located on the ground, a base mechanism is arranged above the mounting base, an air cylinder body mechanism is arranged above the base mechanism,an air cylinder piston mechanism is arranged in the air cylinder body mechanism, a movable end mechanism is arranged above the air cylinder piston mechanism, a temperature sensor mechanism is arrangedon the outer side of the air cylinder body mechanism, a controller and a battery box are arranged on the outer side surface of an air cylinder body, a power input end of the controller is electrically connected to the battery box, a power output end of the controller is electrically connected to a lower limit switch, an upper limit switch and a temperature sensor, and a signal input end of the controller is electrically connected to the lower limit switch, an upper limit switch and the temperature sensor. The hydraulic cylinder device has the beneficial effects of being simple in structure and high in practicability.

The invention discloses a voucher binding device which comprises a base, a frame, a nut seat, a voucher pressing device, a screw rod, a collecting box, a motor, a transverse guide rail, a limit block, a limit switch, a connecting block, an oil cylinder, a fixing block, a vertical guide and a punching device. The punching device includes a vertical movable seat, a gear box I, a drill chuck, a drill, a gear box II, a driven gear, a driving gear, a drilling motor, a gear I, a gear II, a gear III, a gear IV, a gear five V, a gear VI and a gear VII. The voucher binding device has the advantages of reasonable structure and simple structure, low production cost and convenient installation, improves the efficiency of drilling, and also ensures the quality after the drilling, and finally vouchers are bound by needlework or glue.

The invention relates to an AGV path navigation method assisted by a mechanical structure and an AGV chassis structure. The AGV path navigation method comprises a chassis, wherein solid rubber wheelsare arranged at two sides of the chassis, and reduction boxes for controlling the rotating speed of the solid rubber wheels are arranged at two ends of the upper part of the chassis; the middle part of the chassis is provided with an electromagnetic code disc, a protective shell is arranged above the electromagnetic code disc, and a first compression spring used for ensuring that the electromagnetic code disc does not slip is arranged in the protective shell; a first group of limit switches and a second group of limit switches are arranged at the lower part of the chassis in the direction of the vehicle head, and the first group of limit switches and the second group of limit switches are respectively arranged in two rows; the AGV with the chassis structure runs on a preset path, a grooveand a station landmark groove for representing a station are arranged on the ground of the path, a first group of limit switches fall into the groove when the AGV runs, a second group of limit switches fall into the station landmark groove, and a signal is output to a controller of the AGV, wherein the controller judges whether to carry out omnidirectional movement or differential steering according to the obtained information.