32results about How to "Facilitate collaborative work" patented technology

An assembled tower type crane with a movable counter-weight system comprises a steel structure base (1), a lifting sleeve frame (2), a tower body (3), an attachment frame (4), an attachment wire rope (5), a rotary supporting device (6), a boom (7), a lifting hook (8), a tower head (9), a pull rope (10), a balance arm (11), a boom amplitude changing mechanism (13), a lifting mechanism (14), a control chamber (15) and the movable counter-weight system (12). The counter-weight system (12) comprises a counter-weight (21), a counter-weight bearing trolley (22), a counter-weight traction mechanism (23), a traction wire rope (24), a steering pulley (25) and a control system (26). The counter weight bearing trolley (22) bears the counter-weight (21) to move along the balance arm (11). The movable counter-weight can reduce unbalanced torque on the tower body, improve the stress condition of the tower body, enhance the hoisting capacity of the tower crane or reduce the sectional size and the weight of the tower body with the same hoisting capacity, thereby reducing the processing cost and facilitating transportation, mounting, dismounting and on-site carrying. The prevent invention has the advantages of small structural size and light weight of the tower body, high safety, flexibility in lifting, high construction efficiency and the like, and can meet an assembling requirement on all types of power transmission line iron towers with various voltage levels.

The invention relates to an acceleration method of symmetric opening in a distance protection oscillation lock. First acceleration soft switches are connected on both ends of a time element in parallel, wherein the input end of each acceleration soft switch is connected with the output end of a No. 2 and gate, the input end of the No. 2 and gate is respectively connected with the output end of a No. 1 and gate and the output end of an or gate, the input end of the or gate is respectively connected with the output end of a mutation capacity and delay component, the input end of the delay component is connected with the output end of the No. 2 and gate, the control basis of the mutation capacity is to calculate through point sampling arithmetic to control the mutation output so as to control not gate output, control the output of the No. 2 and gate to close the acceleration soft switches, and finally cut of a No. 1 fault line; and the control process prevents the error closing of the acceleration soft switches by the combination of sampling mutation short-termed broadening and distance protection action control holding. The method can accelerate the symmetric opening in the oscillation lock, and facilitates the quick removal of faults.

The invention relates to the technical field of mechanical processing, in particular to a polishing device for polishing a robot arm, comprising a connecting seat installed on the robot arm through a fixing screw, and the end of the robot arm is integrally formed with a connecting seat installed with the robot main body through a bearing. The docking seat is rotated, and the connecting seat is fixed with a first adjustment push rod by bolts. The beneficial effect is: the polishing device can be well and quickly installed on the end of the robot arm, and the device itself has a high degree of freedom of operation, good operational flexibility, and is convenient for collaborative operation with various industrial robots, reducing the difficulty of production line transformation. The polishing device has high processing flexibility, can adapt to the processing needs of workpieces of different sizes and shapes by writing corresponding control programs, and at the same time quickly realize the conversion of processing stations, thereby effectively reducing the number of workpiece clamping and turning .