10results 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 invention relates to a motor vehicle lock, in particular a motor vehicle door lock, equipped with a locking mechanism (1, 2) mainly comprising a bolt (1) and a pawl (2). Furthermore, a joystick train (3, 4, 5, 6, 7) comprising an associated door handle (7) and an electric drive (9, 10, 11) are provided. Furthermore, a safety unit (5, 6; 12, 13), the electric drive (9, 10, 11) acting not only on the locking mechanism (1, 2) for electric opening, but also on the securing unit (5, 6; 12, 13) and during the motorized opening, the safety unit is loaded at least in a short time. According to the invention, in addition to the electric drive (9, 10, 11), the locking mechanism (1, 2) can be opened by a double-stroke actuation of the door handle (7), the double-stroke actuation being released during the electric opening.

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 belongs to the technical field of engineering machinery accessories, and particularly discloses a safety locking mechanism of an engineering machinery seat, which comprises a cab mounting plate, a safety locking rod, a fixed support and a gas spring, the fixed support is fixedly connected to the cab mounting plate, and the safety locking rod is hinged to the fixed support; the safety locking rod is in a U shape, and the two sides of the safety locking rod are bent in an L shape. One end of the gas spring is hinged to the fixing support, the other end of the gas spring is hinged to the safety locking rod, and the safety locking rod achieves switching between a downward turning working state and an upward turning shutdown state through the gas spring. The safety locking rod comprises a framework and a protection pad, the framework is wrapped with the protection pad, the safety locking rod is turned upwards before use, when the safety locking rod is used, a person enters the inner side of the safety locking rod and is turned downwards to a downward turning working state, the safety locking rod encloses the person and provides safety protection, and the protection pad provides flexible support for the human body. And the fatigue feeling caused by long-time operation of the whole machine is relieved.

The invention relates to the technical field of encoders, and particularly provides a grating code disc capable of realizing directional zero searching and an incremental encoder, comprising an incremental code channel and a zero pulse code channel which are used for reading through an incremental counting reading head, and a zero searching code channel which is used for reading through a zero searching reading head, one half of the zero-seeking code channel is a light-transmitting area, the other half of the zero-seeking code channel is a non-light-transmitting area, high level or low level is output through the light-transmitting area and the non-light-transmitting area to judge the relative position of the increment counting reading head and the zero-bit pulse code channel, and the grating code disc is driven to rotate in the plus counting direction or minus counting direction of the preset increment code channel according to the zero-seeking signal. And directional zero searching within 180 degrees is realized. The zero searching time of the incremental encoder is effectively shortened, the encoder can quickly determine the zero position through the design of the zero searching code channel, and mechanical collision in the zero searching process is avoided.

The utility model relates to the technical field of fans, and provides a modular fan which comprises a stator shell, a stator core, a circuit board and a stator bottom shell, a rotor installation channel and an annular cavity are arranged on the stator shell, the rotor installation channel is used for installing a fan rotor, one side of the annular cavity is open, and the annular cavity surrounds the outer side of the rotor installation channel; and the stator core is fixed in the annular cavity of the stator shell. According to the modular fan, only the edge part of the circuit board can be subjected to dispensing treatment in the assembling process, automatic operation of equipment is better facilitated, compared with glue pouring treatment in the prior art, glue loss can be effectively reduced, automatic dispensing operation of the equipment is easier to carry out, in addition, due to the fact that the circuit board is adopted as a sealing component, the production cost is reduced, and the production efficiency is improved. Glue sealing treatment does not need to be considered, the glue pouring sealing performance is prevented from being affected by lead traction, and the glue sealing effect and the sealing stability are further improved.

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.

The present application relates to tin bar stamping processing technical field, specifically to a kind of tin bar stamping processing auxiliary positioner. Including rack, its up and down installation is equipped with stamping frame, stamping frame is equipped with limit cleaning station, limit shaping station and stamping station in proper order, further including conveying module, it is dynamically connected with conveying belt on it, limit driving module, it is dynamically connected with two interval adjustable limit frame on it, the surface of each limit frame is fixedly installed with clamping frame by two elastic pulling components, the surface of clamping frame is fixedly installed with three V-shaped clamps, one clamping frame is fixedly installed with cold gas lance, the side of rack is installed with air cooler, and the air outlet port of air cooler is communicated with cold gas lance.The beneficial effects of the present application are: through single driving module synchronous driving multi-station positioner, effectively solve the problem of inconsistent and cumulative error caused by the reference inconsistency and cumulative error of the prior art multi-station independent positioning.