3 results about "Type test" patented technology

The invention discloses a hanging elastic element for a heavy all-wheel drive off-road vehicle and a design method of the element. The hanging elastic element comprises a variable-stiffness few-leaf-spring assembly, an intermediate axle assembly, a rear axle assembly and a balance shaft seat, the variable-stiffness few-leaf-spring assembly comprises primary spring group springs and secondary spring group springs, a frame is fixedly connected at the upper end of the secondary spring group spring, the upper ends of the intermediate axle assembly and the rear axle assembly are respectively connected with the upper end of the balance shaft seat through the primary spring group springs, and the lower ends of the intermediate axle assembly and the rear axle assembly are respectively connected with the lower end of the balance shaft seat through lower thrusting rods. The hanging elastic element has suitable hanging partial frequency under the independent action of the primary springs and under the combined action of the primary spring group springs and the secondary spring group springs, tests of smoothness, comfort and reliability of a real vehicle are verified, a type test is verified, and the hanging elastic element has good smoothness, comfort and reliability under various working conditions and solves the problems of poor smoothness and comfort of a linear single-stiffness leaf spring of a heavy 6X6 off-road vehicle.

The invention provides a bending resistant expandable type test platform system with an auxiliary support. The test platform system comprises a platform base, a height adjustment force-bearing frame,a cage-shaped main force-bearing frame, a lateral force-bearing column, a loading beam, a hydraulic cylinder, a screw rod, force-bearing ground rails, a ground force-bearing point and ground rail bolts. The test platform system in the invention makes full use of the bearing capacity of the force-bearing ground rails and the ground force-bearing point, expands the bearing capacity of a main platform formed by the platform base and the height adjustment force-bearing frame by designing the cage-shaped main force-bearing frame and adding the lateral force-bearing column as the auxiliary support,decomposes and transfers the root bending moment load to the auxiliary support and the main platform by using the end face and side of the cage-shaped main force-bearing frame, transfers the load simultaneously to the force-bearing ground rails and the ground force-bearing point so that the ground force-bearing point usually used for concentrated loading and bearing in a laboratory can also bear the test load, and enables the bending resistance of the test platform to be significantly improved without changing infrastructure conditions of fixing bearing members such as the force-bearing groundrails and the ground force-bearing point.

The invention relates to a strip-type suspending test board arranged above electromechanical equipment. The test board comprises a large strip-type test board, a tripod or a laneway's side fixing mount arranged on the large strip-type test board, and the large strip-type test board is provided with a left end fixed hole, a right end fixed hole, a left section strip-type hole, a right section strip-type hole, reinforcing ribs and a cross arm of the strip-type test board. The laneway's side fixing mount comprises a laneway's side fixing mount layer board, a laneway's side fixing mount side plateand a laneway's side fixing mount clamp anchor rod core adjusting gasket clip. The laneway's side fixing mount layer board is provided with a laneway's side fixing mount layer board strip-type hole connected with the left end fixed hole or the right end fixed hole, the laneway's side fixing mount clamp anchor rod core adjusting gasket clip is clamped at a groove between an anchor rod core adjusting gasket and an anchor rod tray, the left end fixed hole is connected with the tripod or the laneway's side fixing mount through bolts, and the right end fixed hole is connected with the laneway's side fixing mount or the tripod through bolts; transport equipment does not need to be moved, and a measuring instrument is erected on the transport equipment. The strip-type suspending test board has the advantages of saving testing time, improving work efficiency, and ensuring measurement accuracy.