5results about How to "Avoid mechanical collision" patented technology

The embodiment of the invention provides a rotor operation control method of a magnetic drive conveying system and related equipment, and the method comprises the steps: obtaining the real-time position data and the real-time motion state data of a rotor when the rotor is driven to or located in a cutting region; according to the real-time position data and the real-time motion state data, the estimated brake position of the rotor is obtained; position range comparison is carried out based on the rotor size parameters of the rotor and the estimated braking position and the area boundary range of the cut-off area, and when it is represented that the rotor exceeds the area boundary range, braking control is carried out on the rotor; the range comparison result represents that when the rotor does not reach the region boundary range based on the estimated braking position, the rotor is located in the region boundary range after braking control; when acceleration control or weakening brake control is performed on the rotor, the rotor is enabled to be located in the area boundary range after the acceleration control or the weakening brake control, so that the operation reliability and safety of the magnetic drive conveying system during cutting operation are improved.

The utility model relates to steel structure column foot anchor bolt construction technical field discloses a kind of anchor bolt type column foot mounting device and anchor bolt assembly with protective sleeve, anchor bolt type column foot mounting device includes: sleeve, with anchor bolt one-to-one corresponding cooperation, the diameter of sleeve is greater than anchor bolt diameter and less than anchor bolt nut diameter;Anchor bolt includes threaded portion, sleeve length covers threaded portion and extends along the direction away from anchor bolt and forms guide portion.Sleeve with diameter greater than anchor bolt stem but less than nut is set, the threaded portion of anchor bolt can be completely wrapped, effectively avoid the mechanical collision of bottom plate hole wall and threaded segment when column bottom plate falls, prevent plastic deformation even local defect of thread tooth shape, ensure that nut is smoothly installed in later period.Simultaneously, the guide portion formed by sleeve extension can guide anchor bolt to accurately pass through anchor bolt hole of column bottom plate when column foot is installed, reduce artificial adjustment time, improve construction efficiency, and reduce the thread abrasion risk caused by repeated alignment.

The application provides a multi-leaf collimator assembly, a radiotherapy device and a leaf locking method. The multi-leaf collimator assembly comprises a frame and at least two spaced-apart leaf collimators; each leaf collimator is slidably connected to the frame and can slide in a first direction; the assembly further comprises a driving device and a locking member connected to the driving device; when the leaf collimator slides into an initial position in the frame, the driving device can drive the locking member to abut against the leaf collimator in a second direction, and the leaf collimator abuts against the frame; the first direction and the second direction are both perpendicular to the thickness direction of the leaf collimator, and the first direction and the second direction are not parallel. The driving device can drive the locking member to abut against the leaf collimator, so that the leaf collimator abuts against the frame, thereby fixing the leaf collimator by using the friction between the leaf collimator and the frame and the friction between the leaf collimator and the locking member, and thereby avoiding mechanical collision of the leaf collimator or weakening the mechanical collision intensity during the acceleration and deceleration stages of high-speed rotation of the multi-leaf collimator assembly.

This utility model discloses a PLC-controlled flipping mechanism for an FDY automated packaging line, including a flipping frame, a rotating arm, a cylinder, a reducer, a photoelectric sensor, and a PLC controller. The mechanism achieves 180° flipping of the silk cake through synchronous lifting of the cylinder and driving of the rotating arm by the reducer. With the help of photoelectric sensors and limit switches to detect the position, it solves the problem of the orientation of the tail silk during palletizing. The structure is compact, and it can be seamlessly integrated into existing production lines in a single flip, significantly improving the efficiency of automated packaging.

The utility model relates to the technical field of side slope drainage, in particular to an embedded type side slope drainage mechanism which comprises a drainage pipe embedded in the inclined face of a side slope and a communication pipe embedded in the bottom face of the side slope. The top of the drainage pipe is provided with a drainage groove poured by concrete, the drainage pipe is fixedly provided with a marking pipe, and the marking pipe is perpendicular to the drainage pipe; according to the utility model, the drainage pipe and the communicating pipe are buried underground, so that the ground space is not occupied, the ground surface can be kept clean and beautiful, the normal activities of pedestrians or tourists on the slope are not influenced, and the water drainage pipe and the communicating pipe are connected with the marking pipe, so that the water drainage pipe and the communicating pipe are convenient to use. The pipeline can be prevented from being exposed, mechanical collision and man-made damage are effectively avoided, the marking pipe extends out of the ground to serve as a warning mark, and damage to the drainage pipe caused by slope excavation in follow-up construction is avoided.