7results about How to "Wear minimization" patented technology

The application provides a blade arc grinding process and belongs to the technical field of blade processing. The blade arc grinding process comprises the following steps: fixing the bottom of the blade through a lower fixing mechanism to facilitate the placement of the blade; fixing the upper part of the blade through an upper fixing mechanism to facilitate the grinding of the blade; installing the grinding wheel body through an installation mechanism to facilitate the replacement of the grinding wheel body; moving the grinding wheel body through a driving mechanism to facilitate the grinding of the blade by the grinding wheel body; and placing the blade in the fixed groove through the lower fixing mechanism, and the elasticity of the two return springs in each automatic clamping assembly enables the clamping block to automatically fix the bottom of the blade, so that the blade is placed more stably.

The utility model relates to an elastic ratchet wheel structure and a flywheel, the elastic ratchet wheel structure is matched with a tower footing, the elastic ratchet wheel structure comprises a flywheel body, the flywheel body is axially through, the inner wall of the flywheel body is provided with an annular step, and the annular step divides the inner cavity of the flywheel body into a first chamber and a second chamber; the sealing cover is arranged in the first cavity; the first gear ring is axially and movably assembled in the second cavity, an elastic piece is arranged between the first gear ring and the annular step, and a plurality of first ratchet parts are distributed on the other side of the first gear ring in an annular array mode; the flywheel shaft is assembled on the tower footing, the flywheel shaft is assembled from the second cavity, sequentially penetrates through the first gear ring, the elastic piece and the annular step and extends into the first cavity to be assembled with the sealing cover in a threaded mode, a second gear ring is axially arranged on the flywheel shaft, and a plurality of second ratchet parts meshed with the first gear ring in a one-way mode are distributed on the second gear ring in an annular array mode. According to the utility model, the transmittable torque is optimized and increased, and the abrasion is greatly minimized.

The application belongs to the technical field of amphibious special vehicle, and relates to a steering control method of a single front axle wheel and track composite walking system of a special vehicle. A sensor measures and obtains relevant parameters, and the relevant parameters are determined when the special vehicle is designed; a control component calculates (1) a steering inner track driving force F ti (2) a steering outer track driving force F to ; and the control component controls a driving motor to output a driving force with a value according to the calculated steering inner track driving force F ti and the steering outer track driving force F to . The steering control method of the single front axle wheel and track composite walking system of the special vehicle can be reliably applied to the special vehicle with the single front axle and track composite walking system, and can control the size of the track driving force in real time during driving steering, so that the wheel and track steering torques are consistent according to the bearing proportion, the wheel drags the track or the track drags the wheel is avoided, the additional load of the structure is reduced, the wheel and track are minimized in wear, and the performance is improved.

An aerosol generating device includes a housing including an opening into which an aerosol generating article is insertable, a door body movable with respect to the housing to open and close the opening, and a bearing between the door body and the housing and configured to movably support movement of the door body with respect to the housing by rotation.

The present invention provides a reclining device for a vehicle seat, comprising: a gear plate in which an outer gear provided on an outer diameter portion meshes with an inner gear provided on an inner diameter portion of a flange and which has a receiving portion in the inner diameter portion; and a first cam and a second cam assembled between a flange protrusion protruding from a center of the flange and a bearing inserted into the accommodating portion, an outer diameter portion of the first cam and the second cam including a first outer diameter portion and a second outer diameter portion extending from the first outer diameter portion, the first outer diameter portion is in contact with an inner diameter portion of the bearing, and the second outer diameter portion is spaced apart from and not in contact with an inner diameter portion of the gear plate.

According to an embodiment, a refrigerator is disclosed. The refrigerator includes a first door opening and closing a storage compartment of a cabinet, and a second door rotatably coupled to the first door with respect to the first door by a second hinge. The second hinge includes a locking hook installed to be reciprocally moved along the hinge coupling portion by the operation of the door opening and closing device, and engaged with the locking protrusion to be locked or unlocked when the second door is opened and closed. Thus, the locking hook can be automatically locked or unlocked with respect to the locking protrusion of the first door by the operation of the door opening and closing device.

This invention relates to a face spline structure for transmitting driving force to a vehicle, and a power transmission device including a drive shaft and a hub assembly interconnected by the face spline structure. The face spline structure includes a first face spline and a second face spline that mesh with each other to transmit rotational power. A first gap between the peak of the first face spline and the root of the second face spline meshing therewith, and a second gap between the peak of the second face spline and the root of the first face spline meshing therewith, are each in the range of 0.2 mm to 0.7 mm.