4results about How to "Improve mesh stability" patented technology

The utility model relates to the technical field of range extending type automobile, especially increase a kind of active air intake grille structure for range extender, including grille frame, the upper or front area of car rear wheel package is provided with grille mounting hole;Grille frame one end is embedded and fixed in the inboard of grille mounting hole, forms air inlet end, the other end is equipped with air outlet end, for connecting the air intake system of range extender;Drive assembly is located on grille frame, for driving flap to carry out overturning movement, to open or close air inlet end. By arranging air inlet end in the upper or front area of car rear wheel package, and setting flap controlled by drive assembly, active opening and closure to air inlet end are realized. When vehicle is in pure electric driving mode, range extender does not need to work, flap closes air inlet end under the action of drive assembly, effectively reduces vehicle front end airflow interference, reduces air resistance, improves pure electric cruising range;When range extender starts, flap is automatically opened, guarantees engine air intake demand.

The invention relates to a thread rolling wheel control method and system, computer equipment and a storage medium. The initial meshing moment is calculated, and initial dynamic parameters of the thread rolling wheel are set in combination with workpiece characteristics, so that the thread rolling wheel enters a controlled state before contact, and instant impact caused by no control or extensive control is avoided. Meanwhile, in the initial meshing process, data of a driving unit and a response sensor are obtained in real time, the dynamic sensing capacity for the contact state (including stress change and contact rigidity) is established, the system can adjust the feeding speed and / or preloading force in a self-adaptive mode according to the actual meshing condition, and flexible transition from initial slow feeding to steady-state rolling is achieved.

The utility model discloses a spring bolt damping mechanism and a lock, and belongs to the technical field of anti-theft equipment. The spring bolt damping mechanism is used for being arranged in a lock shell of the lock, the spring bolt damping mechanism comprises a rack assembly, a gear and a first limiting piece, the rack assembly is used for being connected with a spring bolt assembly of the lock, and the rack assembly and the spring bolt assembly are relatively fixed in the moving direction of the spring bolt assembly; the gear is used for being rotatably connected with the lock shell, and the gear is meshed with the rack assembly; the first limiting piece is used for being connected with the lock shell, the rack assembly and the first limiting piece are in limiting fit in the first direction, the first direction is the direction in which the axis of the gear points to the rack assembly, and the first direction is perpendicular to the moving direction of the rack assembly. According to the scheme, the stretching speed of the spring bolt assembly can be reduced, and then noise generated by collision or abrasion between the spring bolt assembly and other parts of the lock due to the too high stretching speed is reduced; meanwhile, the situation that the rack assembly is separated from the gear when moving along with the spring bolt assembly, and the damping effect cannot be achieved can be prevented.

This utility model discloses a lubrication device for the side main shaft support structure of a screw compressor, including a compressor body, a motor, and a motor rotor. The compressor body has an internal lubrication oil chamber and a male rotor coaxially and rotatably mounted with the motor rotor. The motor end has a motor cover, and the inner side of the motor cover has a stable support seat for supporting the male rotor. A storage cavity is formed on the side of the stable support seat near the male rotor. A smooth drainage hole communicating with the lubrication oil chamber and the storage cavity is formed in the middle of the stable support seat for stable support and lubrication of the cantilever rotor of the screw compressor. A connecting bearing is provided on the stable support seat, and the male rotor is connected to the connecting bearing. This lubrication device for the support structure in a screw compressor can provide continuous and highly stable lubrication for the cantilever rotor in the screw compressor.