37 results about "Hogging" patented technology

The present invention relates to a disk section (1) for use in the construction of a grinding disk (10) such as may be used in wood hogging, chipping, or grinding apparatus. The disk section (1) is associated with a substantially wedge shaped retaining segment (30) which is positioned near the circumference of the assembled grinding disk(10), and preferentially overlaps at least part of two adjacent disk sections (1) thereon. The arrangement is such that tangential type impacts acting on a disk section (1) results in at least partial energy transmission to the retaining segment (30) and its connection (38, 39) to a hub (9).

The invention discloses a method for applying pre-pressure to concrete boards of a composite beam top flange. The method includes the steps that the concrete boards in a sagging moment area and a hogging moment area of a composite beam are constructed, then, reserved concrete board connecting sections are arranged in the position near the junction of the sagging moment area and the hogging momentarea, jacks are arranged at intervals in the reserved concrete board connecting sections, so that the pre-pressure is applied to the concrete boards in the hogging moment area, the concrete boards areconstructed in the areas, without the jacks, of the reserved concrete board connecting sections, and then after the jacks are detached, the concrete boards are constructed in remaining parts in the reserved concrete board connecting sections. The method in the scheme has the advantages that the building cost of a project is reduced, construction is convenient, pre-pressure losses are few, efficiency is high, and the popularization prospects are good.

The invention provides an inverted-arc structure reinforcing method based on decrement of the hogging moment of arch feet of an arch bridge. According to the inverted-arc structure reinforcing method based on decrement of the hogging moment of the arch feet of the arch bridge, an inverted arch is arranged below an arch rib of a main arch ring, and the inverted arch and the arch rib are connected through a vertical rod; then the arch feet of the inverted arch and the arch rib are connected through anti-bending embedded parts and anti-shear anchor bolts, so that the inverted arch structure used for reinforcing and the original main arch ring form a rigid restrained supporting system; and the decrement degrees of the hogging moment of the arch feet of the arch bridge in the rigid restrained supporting system have a close relation with seven parameters of a to-be-reinforced arch and the inverted arch. By setting different variable values of the seven parameters, the ratio of the hogging moment of the arch feet of the original arch to the hogging moment of the arch feet after reinforcement is used as the change characterization of the bending moment, and a relational expression between the seven parameters and the change characterization of the bending moment is obtained based on a finite element parameter analysis fitting method. By adoption of the inverted-arc structure reinforcing method based on decrement of the hogging moment of the arch feet of the arch bridge, the structural characteristic internal force value can be solved based on the relational expression, and thus the optimal scheme is selected for inverted-arch reinforcement.