Abstract: A method for controlling a main circuit of a traction system is provided. The method includes: under a braking condition, controlling a protection module to be turned off; controlling the protection module to be turned on and monitoring a first current detected by a first current sensor in a case that a rail vehicle runs on a charged third rail; and controlling the protection module to be turned off and monitoring whether the rail vehicle runs on a charged third rail in a case that the first current is less than a first preset current.

Abstract: An auxiliary device for a mechanical arm includes a supporting base, two reciprocating engines, a rotational plate, and four suction members. The reciprocating engine includes a cylinder and a driving rod. The cylinder is configured for driving the driving rod linearly and reciprocating along its longitudinal axis. The cylinder is rotatably fixed to the supporting base, thereby defining a first rotational axis therebetween. The driving rod is rotatably fixed to the rotational plate, thereby defining a second rotational axis therebetween. The rotational plate is also directly and rotatably fixed to the supporting base to be rotatable about a third rotational axis defined therebetween. The three rotational axes are parallel. The four suction members are fixed to the rotational plate.

Abstract: A transportation apparatus includes a base, a pair of guideways fixed on the base in parallel, a rodless cylinder installed on one of the pair of guideways and including a sliding block operable to be driven by the rodless cylinder to slide along one of the pair of guideways, a supporting member fixed on the sliding block, a lift cylinder installed on the supporting member, and a manipulating member installed on the cylinder. Each of two opposite sides of the supporting member is configured with an upper roller and a side roller abutting against an upper side and an inner side of one of the pair of the guideways, respectively. The manipulating member is operable to be driven by the cylinder to move along a direction different from an extending direction of the pair of guideways.

Abstract: A pipe fixture includes a main body including a receiving hole and a first through hole communicating with the receiving hole, a first positioning pin received in a first end portion of the first through hole including a screw hole and a first pressing portion, and a knob including a screw rod suitable to engage with the screw hole of the first positioning pin, a knob top and a step portion. When the knob extends through the second end portion of the first through hole and is screwed into the screw hole, the first positioning pin moves and presses the pipe so as to fix the pipe, and when the knob is unscrewed from the screw hole, the first positioning pin moves away from the pipe so that the pipe is released.

Abstract: An auxiliary device for a mechanical arm includes a supporting base, two reciprocating engines, a rotational plate, and four suction members. The reciprocating engine includes a cylinder and a driving rod. The cylinder is configured for driving the driving rod linearly and reciprocating along its longitudinal axis. The cylinder is rotatably fixed to the supporting base, thereby defining a first rotational axis therebetween. The driving rod is rotatably fixed to the rotational plate, thereby defining a second rotational axis therebetween. The rotational plate is also directly and rotatably fixed to the supporting base to be rotatable about a third rotational axis defined therebetween. The three rotational axes are parallel. The four suction members are fixed to the rotational plate.

Abstract: A system includes a mounting device (200), a detecting device (100), and a circuit (300). The mounting device includes a base (210), and a mounting head (220) opposite to the base. The detecting device is fixed on the base, and includes a shell (110) comprising a cavity (112) therein, a probe (130) fixed in the cavity and protruding towards the through hole, and a plug (150) having a pin (152) made of conductive materials. The shell further includes an opening (118) communicating with the cavity, and a through hole (114) formed opposite to the mounting head and communicating with the cavity. The pin is connected to the probe through the opening. The circuit includes a PLC circuit (320), and a power supply (310) connected with the PLC circuit. The pin connects with one of the PLC circuit and power circuit, and the mounting head connects with the remaining one.

Abstract: A surface treatment apparatus (100) comprises a transporting device (20), a planishing device (30) and a driving device (10). The transporting device comprises a base (21). The base comprises a front portion (212), a rear portion (214), and a pair of parallel middle portions (216) each comprising a slideway, which defines an opening therein. The base still comprising a sliding block (26) received in the opening (218), with two sides of the sliding block respectively slidably received in the slideways in the pair of middle portions. The planishing device comprises a pair of mounting blocks (32) fixed on the sliding block, at least one axle (34) fixed between the mounting blocks, and at least one wheels (342) fixed on the axle. The driving device is used for driving the sliding block to slide in the opening.

Abstract: A clamp changing apparatus includes a holder (70) including a plurality of clamp-holding devices (72), each of which holding a clamp (10) thereon, a robot (50) including a shaft (501), and a coupling device (30) secured on the shaft of the robot. The robot selects one of the clamps held on the clamp-holding devices according to a predetermined machining program therein, changes out a used clamp for the selected clamp, and mounts the selected clamp on the coupling device.

Abstract: A system includes a mounting device (200), a detecting device (100), and a circuit (300). The mounting device includes a base (210), and a mounting head (220) opposite to the base. The detecting device is fixed on the base, and includes a shell (110) comprising a cavity (112) therein, a probe (130) fixed in the cavity and protruding towards the through hole, and a plug (150) having a pin (152) made of conductive materials. The shell further includes an opening (118) communicating with the cavity, and a through hole (114) formed opposite to the mounting head and communicating with the cavity. The pin is connected to the probe through the opening. The circuit includes a PLC circuit (320), and a power supply (310) connected with the PLC circuit. The pin connects with one of the PLC circuit and power circuit, and the mounting head connects with the remaining one.

Abstract: A surface treatment apparatus (100) comprises a transporting device (20), a planishing device (30) and a driving device (10). The transporting device comprises a base (21). The base comprises a front portion (212), a rear portion (214), and a pair of parallel middle portions (216) each comprising a slideway, which defines an opening therein. The base still comprising a sliding block (26) received in the opening (218), with two sides of the sliding block respectively slidably received in the slideways in the pair of middle portions. The planishing device comprises a pair of mounting blocks (32) fixed on the sliding block, at least one axle (34) fixed between the mounting blocks, and at least one wheels (342) fixed on the axle. The driving device is used for driving the sliding block to slide in the opening.

Abstract: A clamp changing apparatus includes a holder (70) including a plurality of clamp-holding devices (72), each of which holding a clamp (10) thereon, a robot (50) including a shaft (501), and a coupling device (30) secured on the shaft of the robot. The robot selects one of the clamps held on the clamp-holding devices according to a predetermined machining program therein, changes out a used clamp for the selected clamp, and mounts the selected clamp on the coupling device.