Steering gear clamping device and clamping method suitable for steering gear testing platform

Abstract

The invention discloses a steering gear clamping device suitable for a steering gear testing platform. The steering gear clamping device comprises a steering gear fixing platform, wherein oil ports P, T, A and B corresponding to the P, T, A and B oil ports of a steering gear are correspondingly arranged on the steering gear fixing platform; corresponding fixed devices are arranged corresponding to screw holes of the steering gear; and the fixed devices comprise a motor, and a bolt aligned with the screw hole is arranged on an output shaft of the motor. The invention further discloses a steering gear clamping method suitable for the steering gear testing platform.

Description

technical field [0001] The invention relates to a clamping device, in particular to a steering gear clamping device and a clamping method suitable for a steering gear test platform. Background technique [0002] The steering gear is the most important part of the steering system. Its main function is to increase the force transmitted from the steering wheel to the steering transmission mechanism and to change the direction of force transmission. Due to the important role of the steering gear in the steering system, it makes During the production process of the steering gear, the quality inspection or testing process of the steering gear becomes extremely important. [0003] And the steering gear in the prior art generally all adopts the form of the hydraulic system to complete the purpose of increasing the power of the steering wheel to the steering transmission mechanism; P, T, A and B oil ports; during production and processing, in order to simplify the manufacturing proc...

AI Technical Summary

Problems solved by technology

[0004] On the existing steering system test platform, since the platform itself needs built-in oil circuits, when the steering gear is installed, it is often only possible to align the P, T, A and B oil ports of the steering gear with the corresponding oil ports of the steering system test platform. P, T, A and B oil ports, and apply pressure from the top of the steering gear to fix the steering gear on the upper surface of the test platform

Although the steering gear tested in this way can obtain approximate parameters, it is often not accurate

First of all, the fixing method of this steering gear is very different from the installation method of installing the steering gear on the vehicle; the standard structure of the steering gear is often provided with bolt holes on both sides of the P, T, A and B oil ports , to install the steering gear on the vehicle, it is often fixed after aligning the P, T, A and B oil ports of the steering gear, screwing the bolts into the bolt holes from bottom to top; The fastening force must be different; for example, in the fixing method by applying pressure, there are often gaps between the P, T, A and B ports of the steering gear and the P, T, A and B ports of the test platform. It cannot be completely aligned one by one; although the deviation of the oil outlet should be very small when the oil outlet deviation cannot be observed with the naked eye, it is often this small deviation that will often cause a large deviation in the test data; and due to the pressure The force of pressing down cannot be the same as the force when the bolt is tightened. All existing test platforms often cannot accurately simulate the use environment of the steering gear on the car, so the test data are often different from the actual data. Deviation

What's more serious is that the fastening method of applying external force will often cause slight deformation of the steering gear under test, and when deformation occurs, it will often destroy the internal structure of the precision component of the steering gear, and then make the test data bias

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