35results about How to "Increase radius of gyration" patented technology

The embodiment of the invention discloses an anti-buckling reinforcing device for angle steel of a power transmission tower. By adoption of the anti-buckling reinforcing device for the angle steel of the power transmission tower, the technical problems that the whole angle steel of the power transmission tower is prone to bending instability and flexural-torsional instability and poor in buckling bearing capacity are solved. The anti-buckling reinforcing device for the angle steel of the power transmission tower comprises restraint components, wherein the angle steel of the power transmission tower is sleeved with the restraint components, and the restraint components are connected through high-strength bolts.

The invention relates to an anchor rod whose rod is rotational, which comprises a rotated rod inside the anchor hole; the end of rod is outside the anchor hole; the straight section is in the free section of anchor hole; the rotation section is at the anchor section. And it is characterized in that: at the rotation section, it has the support element which can deform according to the rotation of rod; said support element is combined with the slurry element poured into the anchor hole, to form the support to support the drawing force of anchor rod; and said support is at the inner side of rotation section, to be cylinder, column, ball, or U-shaped, or at the inner side of rotation section to expand the rotation section, as one flexible element, or the mesh element at the surface of rotation section, or the mesh muffle at the surface, or the annular or screw element coiled on the surface of rotation section. The invention has simple structure and easy construction, while the rod can be recycled, and it can be used as pressure anchor rod.

The invention discloses a synthesized pipe rack with a frame composite structure. The synthesized pipe rack comprises unit plate pieces positioned on the upper and lower surfaces, and side unit plate pieces positioned on two side surfaces; the unit plate pieces and the side unit plate pieces are combined and spliced to form unit pipe sections; the unit pipe sections are axially spliced to form the synthesized pipe rack; the unit plate pieces consist of plates, hollow second pipes positioned at two ends, and hollow first pipes positioned at the other two ends; the side unit plate pieces consist of plates, and hollow second pipes positioned at two ends; the second pipes are axial splicing ends of the unit pipe sections; and in splicing of the synthesized pipe rack, the first pipes form longitudinal beams of the synthesized pipe rack, and the adjacent second pipes are connected with each other to form a skeleton structure of the synthesized pipe rack. The longitudinal beams and the skeleton structure of the pipe rack bear main loads; a bridge steel web structure is formed to enhance the shearing resistance of the pipe rack, and is skillfully used; based on dual enhanced structures, the bearing capacity is greatly improved; and under the same filling height, wall plates with the structures are thinner, and materials are saved.

The invention discloses a device for machining the tooth profile of an inner gear with a drum-shaped worm tool. According to the device, a machine tool body is formed by a machine tool stand column (1) and a machine tool base (0), and the machine tool body is connected with a perpendicular feed motion unit (2), a worm tool driving power head (3), a workpiece rotation motion unit (4), a horizontal workpiece feed motion unit (5), a worm tool opening and closing unit (6) and a power head swing motion unit (7). A method for machining the tooth profile of the inner gear with the drum-shaped worm tool includes four major steps. The drum-shaped worm tool is divided into two parts and opened or closed in proper time before or after machining, the surface of the inner gear with a small diameter can be machined with a large-diameter tool, the inner gear can be machined continuously, and thus the machining efficiency is greatly improved; effects of worm rotation errors on the machining precision can be reduced by increasing the rotation radius of the drum-shaped worm tool, and therefore the method can also be used for machining precision inner gears.

The invention discloses a special-shaped three-dimensional earthquake isolation supporting base. The special-shaped three-dimensional earthquake isolation supporting base is arranged between an upper-part structure and a lower-part structure which need earthquake isolation, and comprises a bottom board, at least two special-shaped supporting base bodies, upper-part connecting corner blocks, lower-part connecting corner blocks, a horizontal supporting base and a sliding face board; the bottom board is connected with a lower-part structure; the special-shaped supporting base bodies are composedof first elastic blocks clamped by upper sealing boards and lower sealing boards in parallel with one another; the upper-part connecting corner blocks and the lower-part connecting corner blocks are provided with horizontal bottom surfaces and oblique top surfaces, and when the upper-part connecting corner blocks are arranged invertedly and the lower-part connecting corner blocks are overlaid withthe upper-part connecting corner blocks, the bottom surfaces are parallel; the horizontal supporting base is composed of a second elastic block clamped by an upper board and a lower board; after theupper-part connecting corner blocks are arranged invertedly and sequentially connected with the special-shaped supporting base bodies and the lower-part connecting corner blocks, the upper-part connecting corner blocks are fixedly supported on the bottom board in a central symmetrically distributed mode, and the sliding face board is fixed to the bottom surfaces of the upper-part connecting cornerblocks; and the horizontal supporting base is supported on the sliding face board in a mode capable of rotating round a central symmetric line, the contact surface of the horizontal supporting base and the sliding face plate adopts a friction material, and the upper board of the horizontal supporting base is connected with an upper-part structure. The special-shaped three-dimensional earthquake isolation supporting base can be synchronously isolate horizontal and vertical earthquake, and can be used for vertical earthquake isolation of buildings with comparatively large self-weight.

The invention discloses a honeycomb-shaped web special-shaped steel column with a T-shaped section. The honeycomb-shaped web special-shaped steel column with the T-shaped section comprises a first plain steel plate flange, a second plain steel plate flange, a third plain steel plate flange, a first steel web, a second steel web and holes; one side edge of the second steel web is perpendicularly connected with the middle part of the first steel web, and the other side edge of the second steel web and two side edges of the first steel web are respectively connected with the first plain steel plate flange, the second plain steel plate flange, the third plain steel plate flange together to form the special-shaped steel column with the T-shaped section; the first steel web and the second steel web are honeycomb-shaped webs of which the middles are provided with the holes; each of the first steel web and the second steel web respectively consists of steel plates of which the edges are provided with notches; the steel plates are welded by butt-jointed seams to form the honeycomb-shaped webs. According to the invention, the structural behavior of the special-shaped steel column is improved without obviously increasing comprehensive cost of the construction, so that the special-shaped column structure is more widely applied to multi-storey and high-rise residences.

The invention discloses a Raymond grinding device, which is characterized by the following: displaying drum shape of large middle and two small ends; increasing the rotary radius of grinding roll; improving the linear speed of grinding roll surface; increasing the weight and impact force of grinding roll; improving the grinding fineness and efficiency; lengthening the usage lifetime.

The invention relates to a cantilever gyration mechanism of a gamma-ray source. One end of a transverse arm (8) is fixed on the upper end of a stand column (6), and the other end of the transverse arm (8) is fixedly connected with a radioactive source body (10). The length of the part of the transverse arm (8) hung out of the stand column (6) is 500-1500mm, and the distance of the gyration radius from the gamma-ray source body (10) to the nearest point of an isocenter line (12) is 320-550mm. In the invention, the transverse arm (8) of the gamma-ray source gyrates around the horizontal isocenter line (12) through a gyration shaft (5), wherein, the gyration speed ranges from 0.8 to 6 turns per minute. The gyration radius of the radioactive source is increased in the invention to ensure that the infection focus of a patient can be totally focused on a target spot during radiotherapy, thus the gyration mechanism has the characteristics of simple structure and convenient use, can be applied to gamma-ray or other radioactive energy beam therapy apparatuses, and is particularly suitable for treating whole-body focus infection by the gamma-ray source.

The invention relates to a damping spacer rod which comprises a cross-shaped spacer rod damping structure, splicing chucks, and a fixation structure of a rectangular spacer rod frame and line clip bodies. According to the invention, the whole structure retains the cross-shaped spacer rod damping structure and the splicing chuck, and absorbs the design structure of the fixation of the rectangular spacer rod frame and the line clip bodies; the strength is greatly improved; the length ratio of the center frame to each line clip body is adjusted; the length of the center frame is increased; the whole gyration radius of the frame part is increased; the whole stability of the spacer rod is improved; and the damping spacer rod plays the roles of subspan oscillation inhibiting and torsion.

The invention discloses a honeycomb-shaped web special-shaped steel column with an L-shaped section. The honeycomb-shaped web special-shaped steel column comprises a first plain steel plate flange, a second plain steel plate flange, a third plain steel plate flange, a first steel web, a second steel web and holes; one side edge of the second steel web is perpendicularly connected with the edge of the first steel web, and the other side edge of the second steel web and two side edges of the first steel web are respectively connected with the first plain steel plate flange, the second plain steel plate flange, the third plain steel plate flange together to form the special-shaped steel column with the L-shaped section; the first steel web and the second steel web are honeycomb-shaped webs of which the middles are provided with the holes; each of the first steel web and the second steel web respectively consists of two steel plates of which the edges are provided with notches and the shapes are the same; every two corresponding steel plates are welded by a butt-jointed seam to form one honeycomb-shaped web. According to the invention, the structural behaviors of the conventional solid-web special-shaped steel column with an L-shaped section and the conventional trussed special-shaped steel column with an L-shaped section are improved, and the comprehensive cost of the construction is controlled.

The invention discloses a cellular steel web-concrete filled steel tube flange H-shaped section composite column, comprising a concrete filled steel tube flange 1, a concrete filled steel tube flange 2 and a steel web, wherein the steel web is arranged between the concrete filled steel tube flange 1 and the concrete filled steel tube flange 2; the steel web is a cellular web with a hole in the center, and is composed of two steel plates which are same in shape and are provided with gaps in the edges; the two steel plates are welded through a butt weld joint to form the cellular web. On the premise of not increasing steel materials, relatively high bending strength and rigidity are obtained, and the stable bearing capacity is improved.