Bench test height adjustable device

Abstract

The invention discloses a bench test height adjustable device, comprising a portal frame and an actuating cylinder. The portal frame comprises a top plate and a plurality of upright posts, wherein the top plate is arranged at the top ends of the upright posts, and lead screw adjusting assemblies are arranged among the upright posts, wherein the lead screw adjusting assemblies comprise lead screws and adjusting plates with lead screw nuts, and the upper ends of the lead screws are connected with a transmission driving system; the adjusting plates are connected with an installing beam; the installing beam is connected with the actuating cylinder; the transmission driving system comprises a motor, a transmission rod and gears, wherein the transmission rod is arranged on the bearing holders, and the bearing holders are arranged on the top plate, and the two ends and the middle part of the transmission rod are provided with the gears respectively; the motor is installed on the top plate; the end parts of the motor bearings are provided with the gears; the gears of the motor bearings form a transmission mechanism with the gears in the middle of the transmission rod. The upper ends of the lead screws are provided with gears and form a transmission mechanism with the gears connected with one end of the transmission rod. The height adjustment of the invention is the electric mechanical adjustment, which does not need manpower and saves time and labor. The height adjustment is convenient and rapid and the actuating cylinder can be mounted conveniently.

Description

technical field [0001] The invention belongs to the field of automobile testing, in particular to the technical field of automobile parts testing, in particular to a height-adjustable device for bench testing. Background technique [0002] The performance of the whole car is closely related to the quality and performance of each part of the car. Before manufacturing the whole car, it is necessary to conduct a bench test on each part, including the test of the frame and suspension system of the car. For the test of automobile body, anti-fatigue test and durability test of auto parts, through the bench test, it can be quickly obtained whether the performance of the test piece meets the standard, and can be used after reaching the standard. During the bench test, due to the different sizes and specifications of the test parts, the stability of the test device is poor, and the loading efficiency of the test device is low, which often leads to inaccurate test results or low test ...

AI Technical Summary

Problems solved by technology

During the bench test, due to the different sizes and specifications of the test parts, the stability of the test device is poor, and the loading efficiency of the test device is low, which often leads to inaccurate test results or low test efficiency.

[0003] The Chinese patent application No. 201210586647.8 discloses an automobile test bench, which includes a gantry frame, at least one set of actuators, a fixture mechanism and a support mechanism supporting the entire test bench structure, and the fixture mechanism is respectively connected to the actuator and The supporting mechanism is connected to fix the test piece. The actuator is movably installed on the gantry frame, including the sliding mechanism installed on the beam of the gantry frame, the actuator, and the ball joints arranged at the upper and lower ends of the actuator. The sliding mechanism and the actuator The moving cylinder is connected through the upper ball joint, and the clamping mechanism is connected with the driving cylinder through the lower ball joint; the clamping mechanism includes at least one set of clamps which are movably installed on the two side walls of the supporting mechanism, and located under the working cylinder and connected with the working cylinder. A set of fixtures connected by ball joints. The support mechanism adopts a cast iron square box with connecting grids on the surface. The fixtures can be movably installed on the grids and the fixed positions can be adjusted according to different test pieces. However, when adjusting the height of the test piece in this patent , it is necessary to manually install and remove the bolts to fix and disassemble the fixture on the grid, which is inconvenient to adjust and the efficiency is low; The mode is relatively fixed and the adjustment is slow, so it is necessary to design a bench test device with fast height adjustment and easy installation

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