226results about How to "Uniform load distribution" patented technology

The present invention relates to a shoe, in particular a sports shoe, having a flexible upper surrounding a foot, a closure panel arranged on an instep area of the flexible upper, and a tightening element arranged at the heel of the shoe. The tightening element is connected to the closure panel such that the closure panel, through the use of the tightening element, can be tightened against the instep area of the flexible upper to retain the shoe on the foot.

The invention provides an extend range type electric passenger vehicle with an engine arranged at the front position. The extend range type electric passenger vehicle comprises the turbine shaft engine (2), a battery pack (3), an electric generator (4), a drive motor (6), a storage tank (9) and a split type heat regenerator (12). The extend range type electric passenger vehicle is characterized in that the turbine shaft engine (2) is arranged and installed on an automobile frame above a front axle; the axis of an output shaft of the turbine shaft engine (2) is located on a symmetry plane of an automobile body; the split type heat regenerator (12) is located below the turbine shaft engine (2); and exhaust gas exhausted out of the turbine shaft engine (2) is adopted by the split type heat regenerator (12) for preheating inflow gas of the turbine shaft engine (2). By the adoption of the extend range type electric passenger vehicle, a gas turbine is adopted as a power source and arranged at the position on the symmetry center line above the automobile front axle, an output shaft of the gas turbine is longitudinally arranged, and the extend range type electric passenger vehicle has the beneficial effects that the energy conversion efficiency is high, a front wheel, a rear wheel, a left wheel and a right wheel bear weight in a balanced manner, the operation performance is good, and the running mileage is large.

The invention relates to a wet shot peening surface modification treatment method suitable for a nickel-based high-temperature alloy. The method comprises the following treatment methods of pre-treatment before shot peening, wherein the surface cleaning is carried out on nickel-based high-temperature alloy parts, no pollutants exist on the surface of the parts, and the parts which cannot be shot-peened are wrapped and plugged; wet shot peening treatment, wherein the wet shot peening treatment is carried out on the nickel-based high-temperature alloy parts by using ceramic shots and water, andthe water to ceramic shots is 4:1 by mass ratio; and post-treatment of shot peening, the nickel-based high-temperature alloy parts after conducting wet shot peening are dried at room temperature to finish surface modification treatment. According to the wet shot peening surface modification treatment method, the structure of materials is adjusted and controlled through the optimization of technological parameters, thus improving the universality of the method, and by utilizing the lubricating and buffering effects of water, the strain rate of plastic deformation during the process of shot peening can be reduced, the surface defects such as microcracks and peeling on the surface of the nickel-based high-temperature alloy are avoided, thus enhancing the surface integrity level of the materials and perfecting the fatigue performance of the materials.

The invention discloses a power-driven system and a vehicle. The power-driven system comprises a differential mechanism, a speed changer, an engine and a first motor generator, wherein the differential mechanism comprises a first planetary frame, a second planetary frame, a first planetary wheel, a second planetary wheel, a first gear ring, a second gear ring and an input part; the first planetary wheel and the second planetary wheel are connected with the first planetary frame and the second planetary frame correspondingly; the first planetary wheel and the second planetary wheel are engaged with the first gear ring and the second gear ring correspondingly; the second planetary wheel is further engaged with the first planetary wheel; the input part, the first planetary frame and the second planetary frame are linked coaxially; the speed changer is connected with the differential mechanism; the engine and the first motor generator are connected with the speed changer; and the engine and / or the first motor generator can output generated power to the input part. The differential mechanism of the power-driven system uses the planetary difference velocity principle to achieve the differential function, and the structure is compact and simple.

The invention discloses a fabricated prestressing device and method for high pier scaffoldings. The fabricated prestressing device includes piers on which the scaffoldings are positioned, and a spatial truss. The spatial truss is hinged to the top of the piers. The base of the spatial truss is fixedly connected to a first stress distribution allocation girder group for prestressing. The upper end of the scaffoldings is provided with the second allocation girder group for prestressing. A hydraulic jack is arranged between the first and the second allocation girder group for prestressing. The fabricated prestressing device has a simple structure and is easily assembled and disassembled. Not only can the device actualize the prestressing test for piers and scaffoldings quickly and effectively but the device can also remove the inelastic deformation of scaffoldings in the process of prestressing. The device can obtain an accurate deformation value of every pier and scaffolding under the corresponding load effect.