5results about How to "Reduce additional load" patented technology

The utility model discloses a sheet-pile bridge suitable for an underpass railway bridge, which relates to the technical field of railway building construction, and comprises a pile plate, a pile foundation and a support rib cage, the pile plate is provided with a connecting hole, and the upper end of the connecting hole is provided with a top rib net; the upper ends of the pile foundations are fixedly arranged in the connecting holes and located below the top rib net, and the lower ends of the pile foundations are used for being buried in a foundation. The supporting rib cage comprises a connecting rib, an inclined rib, a ring rib and a stirrup; the connecting rib comprises a first section, a second section and a third section which are connected in sequence; the second sections and the third sections are located above the pile foundation, the third sections extend in the direction close to the central axis of the pile foundation, the stirrups are connected to the second sections, and the two ends of the inclined ribs are connected to the second sections and the third sections correspondingly to form a triangular structure, so that the supporting rib cage forms a self-stabilizing structure; the annular ribs are connected to the third sections, the at least two third sections and the annular ribs form a supporting net, the supporting net abuts against the lower portion of the top rib net, the additional load of the foundation in the construction process is reduced, and the influence on the railway bridge structure is reduced.

The utility model discloses a kind of low vibration bearing with optimized retainer structure belong to bearing technical field, including inner ring and outer ring, evenly be provided with rolling element between inner ring and outer ring, rolling element outside is provided with retainer, retainer includes first side plate and second side plate, there is array distribution in between first side plate and second side plate pocket, pocket and first side plate and second side plate between fixed connection, pocket and pocket between fixed connection there is pocket crossbeam.The utility model uses above-mentioned a kind of low vibration bearing with optimized retainer structure, reduce the collision of rolling element and retainer, inner ring and outer ring, enhance the overall rigidity of retainer, avoid rolling element position deviation, inhibit bearing vibration;Oil reservoir can store lubricating oil, reduce the friction and abrasion of rolling element and pocket, raceway, prolong the service life of bearing;Retainer uses aluminium alloy material, reduce centrifugal force when high speed operation, reduce the additional load to bearing overall, indirectly reduce vibration.

The invention provides accident discharge equipment, and belongs to the field of petrochemical equipment. The accident relief equipment comprises a relief tank, and at least one feeding pipe is connected to the side wall of the relief tank in the tangential direction. A stuffing box type structure is arranged at the other end of the feeding pipe; and a jacket is arranged on the outer wall of the feeding pipe. The side wall of the discharge tank is tangentially connected with the feeding pipe, and the feeding pipe is connected with a reactor or equipment needing pressure relief and release through a stuffing box type structure, so that the impact load of high-flow-speed and high-pressure reaction fluid on the tank body of the discharge tank is reduced, and meanwhile, the load transmitted by a pipeline is reduced; the jacket is arranged on the outer wall of the feeding pipe, and the heating medium is introduced into the annular structure formed by the jacket and the outer wall of the feeding pipe, so that high-temperature and high-pressure fluid can be prevented from being cured and adhered to the inner wall of the feeding pipe due to too low instant temperature when entering the feeding pipe, and additional load generated by curing materials is reduced, so that the maintenance frequency of accident relief equipment is reduced, and the service life of the accident relief equipment is prolonged. And the maintenance cost is reduced.

This invention discloses a rapid mooring device and method for dock ships, comprising a base assembly, a rotating component, a sliding force transmission component, a tensioning mechanism, a tie rod assembly, and a mechanical locking assembly. The rotating component and the sliding force transmission component constitute a multi-degree-of-freedom follower mechanism to adapt to changes in the force direction of the mooring line. The tensioning mechanism drives the sliding force transmission component to achieve tensioning and release. The mechanical locking assembly includes a jump plate and a wedge block assembly for rapid coarse adjustment and precise locking of the load. Through the above structure, the small boat can achieve adaptive force adjustment during the floating and bottoming processes of the dock ship, and complete the switch of load from driven bearing to mechanical bearing on the deck. The method includes connection, tensioning, adaptive adjustment, and mechanical locking steps. This solution requires no underwater operation, has high operational safety, high mooring efficiency, and is suitable for rapid mooring and release operations of large-tonnage small boats.