The invention belongs to the field of wheel and rail transit system track structure dynamic design and specifically relates to railway fastener elastic tie plate vertical dynamic performance test equipment and a control device. The test equipment comprises a sine displacement excitation loading device and a spiral elevating instrument. The sine displacement excitation loading device comprises a support frame, a first power device, a transmission gear and a loading assembly. The first power device and the loading assembly are arranged on the support frame. The loading assembly comprises a wheel axle and a cam group. The cam group comprises a first cam, wherein the first cam is in detachable connection with the wheel axle. The first power device is connected with the wheel axle through the transmission gear. The spiral elevating instrument comprises a first base, an adjustment assembly, a support plate and a driving device. The driving device is arranged on the first base; the adjustment assembly is connected with the first base and the support plate; and the driving device is connected with the adjustment assembly.

Railway fastener elastic tie plate vertical dynamic performance test equipment and control device

The invention relates to a fatigue property testing device of a steering gear. The fatigue property testing device comprises a test piece worktable, screw rod sliding tables, screw rods, mounting bases, pressure shafts, a clamping device and a movable table, wherein a plurality of groups of transverse T-shaped grooves and longitudinal T-shaped grooves are formed in the test piece worktable at intervals; one group of screw rod sliding tables is arranged at each of two longitudinal ends of the test piece worktable; the clamping devices are assembled on the test piece worktable through the transverse T-shaped grooves and the longitudinal T-shaped grooves and a steering gear test piece is assembled on the clamping device; the screw rod sliding tables are provided with longitudinal sliding rails and the mounting bases are mounted on the sliding rails; one end of each screw rod is fixedly mounted on the screw rod sliding tables and the other end of each screw rod is connected with the corresponding mounting base so as to drive the mounting bases to do feeding movement along the sliding rails; the pressure shafts are mounted on the mounting bases. The fatigue property testing device of the steering gear is reasonable in structural design and can be used for carrying out a fatigue test on an automobile steering gear, and is simple in structure and good in effect.

Fatigue property testing device of steering gear

The invention relates to a steering gear fatigue performance testing device. The steering gear fatigue performance testing device comprises a test piece workbench, screw rod sliding platforms, a screw rod, a mounting base, a pressure shaft, a clamping device and a moveable platform, wherein multiple groups of transverse T-shaped grooves and longitudinal T-shaped grooves are formed in the test piece workbench at intervals; one group of screw rod sliding platform is arranged at each of the two ends of the test piece workbench; the clamping device is assembled on the test piece workbench through the transverse T-shaped grooves and the longitudinal T-shaped grooves; a steering gear test piece is assembled on the clamping device; longitudinal sliding rails are arranged on the two sides of the screw rod sliding platforms; the mounting base is arranged on the sliding rails; one end of the screw rod is fixedly arranged on the screw rod sliding platforms and the other end of the screw rod is connected with the bottom of the mounting base to drive the mounting base to do feed motion along the sliding rails; and the pressure shaft is arranged on the mounting base. The steering gear fatigue performance testing device is reasonable in structural design, can stably clamp the automobile steering gear test piece through the structure of a V-shaped groove and a reverse V-shaped clamping platform to perform fatigue performance test, and has a good effect.

Steering gear fatigue performance testing device

The utility model relates to a single electric wheel axle load dynamic loading device used for carrying out loading test for a single electric wheel axle; the single electric wheel axle load dynamic loading device comprises a fixing assembly; the fixing assembly comprises a pedestal and a main support mutually connected; the single electric wheel axle load dynamic loading device also comprises a measuring assembly, and a limit assembly and a loading assembly arranged on the fixing assembly; the measuring assembly is respectively connected with the limit assembly and the loading assembly; the fixing assembly also comprises a wheel hub arranged on the pedestal. Compared with the prior art, the single electric wheel axle load dynamic loading device is reliable in space limiting, high in convenience, simple in structure, saves cost, and is small in occupation space and wide in application scope.

Single electric wheel axle load dynamic loading device

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Single electric wheel axle load dynamic loading device