Anti-deflection device for U-shaped bolt, and installation method thereof

Abstract

The invention discloses an anti-deflection device for a U-shaped bolt, and relates to the technical field of commercial vehicle suspension systems. The anti-deflection device is used for assisting in positioning the U-shaped bolt and bolt cover plates, and each bolt cover plate is provided with two U-shaped mounting grooves; the two U-shaped mounting grooves are correspondingly provided with two U-shaped bolts, and each U-shaped bolt is provided with two clamping feet and a transition rod; and the transition rod of each U-shaped bolt is respectively positioned in one U-shaped mounting groove. The anti-deflection device comprises: a support frame provided with a horizontally arranged slideway groove; and a sliding beam which is vertically arranged, wherein the top end of the sliding beam can slide along the slide way groove, and the bottom end of the sliding beam is provided with a rotatable pressing block through a connecting structure. A pair of clamping plates is detachably fixed to the two sides of the pressing block and used for clamping the clamping feet of the two U-shaped bolts, and the bottom face of the pressing block is used for pressing the bolt cover plate. And after the relative positioning of the U-shaped bolts and the bolt cover plate is qualified, the U-shaped bolts are fixed.

Description

technical field [0001] The present application relates to the technical field of commercial vehicle suspension systems, in particular to a U-bolt anti-skewing device and an installation method. Background technique [0002] At present, when the suspension system of a commercial vehicle is installed, the vehicle frame is turned over on the assembly line for inversion. Specifically, on the assembly line, the main leaf spring d, the auxiliary leaf spring b, the bolt cover a and the U-shaped bolt e are all sub-assembled into a whole, and then the hoisting device is used to install the formed whole, from top to bottom Lift and install on the turned over frame. Since the frame has a larger space after being turned over, it can be installed as a whole first, and then hoisted and installed. [0003] During the trial production of the new model, the frame of the new model cannot be turned over in the trial production workshop, so it is impossible to complete the sub-assembly of the...

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Problems solved by technology

[0003] During the trial production of the new model, the frame of the new model cannot be turned over in the trial production workshop, so it is impossible to complete the sub-assembly of the main leaf spring d, auxiliary leaf spring b, bolt cover a and U-shaped bolt e in advance. Step-by-step installation on the frame only

[0004] However, in the process of gradually installing the main leaf spring d, auxiliary leaf spring b, bolt cover a and U-shaped bolt e, the U-shaped bolt e clamps and fixes the main leaf spring d and auxiliary leaf spring b, Since the U-bolt e and the bolt cover a have a certain installation gap, it often happens that the U-bolt e is skewed during the final tightening process; and the installation accuracy of the U-bolt e here is extremely high. If the skew occurs, the stress of the main leaf spring d and the auxiliary leaf spring b will be concentrated. After a long time, it will break

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