Heavy load tolerance regulator

Abstract

The invention provides a heavy load tolerance regulator, a lower thread is arranged in the hollow portion of a hollow nut, an annular groove is formed in the upper end of a hollow screw rod, a longitudinal receding groove communicated with the annular groove is further formed in the upper end face of the hollow screw rod, a closing-in arc-shaped elastic piece with a limiting plate is arranged at the upper end of a clamping spring, the limiting plate corresponds to the receding groove in the upper end face of the hollow screw rod, the clamping spring is clamped in the hollow screw rod, the limiting plate at the upper end of the clamping spring is located in the receding groove of the hollow screw rod, a positioning ring is installed in the annular groove in the upper end of the hollow screw rod, the clamping spring is locked in the hollow screw rod through the limiting plate, the hollow screw rod is screwed at the lower thread in the hollow part of the hollow nut through the thread of the hollow screw rod, and a locking groove is formed in the thread of the hollow nut. The regulator has the advantages that the good adjusting effect is achieved, the adjusting operation is very convenient and rapid, the mounting efficiency of a battery pack is effectively improved, and the adjustable loading capacity is improved.

Description

technical field [0001] The invention relates to the technical field of tolerance adjusters, and more specifically relates to the technical field of tolerance adjusters for fixing automobile battery packs. Background technique [0002] At present, the market share of electric vehicles is increasing year by year. The battery pack is the core component of electric vehicles. During the manufacturing process of electric vehicles, the battery pack needs to be fixed on the frame. Set the lifting lugs on the top of the frame, and open corresponding through holes on the lifting lugs and the vehicle frame, and then lift the battery pack through the lifting device, so that the lifting lugs of the battery pack are in contact with the bottom surface of the frame, and then connect the battery pack lifting lugs and the vehicle frame. Bolts are passed through the through holes of the frame, and nuts are screwed on the bolts to fix the battery pack on the frame. However, since the bottom sur...

AI Technical Summary

Problems solved by technology

[0002] At present, the market share of electric vehicles is increasing year by year. The battery pack is the core component of electric vehicles. During the manufacturing process of electric vehicles, the battery pack needs to be fixed on the frame. Set the lifting lugs on the top of the frame, and open corresponding through holes on the lifting lugs and the vehicle frame, and then lift the battery pack through the lifting device, so that the lifting lugs of the battery pack are in contact with the bottom surface of the frame, and then connect the battery pack lifting lugs and the vehicle frame. Bolts are passed through the through holes of the frame, and nuts are screwed on the bolts to fix the battery pack on the frame. However, since the bottom surface of the frame is not a complete plane, it may be uneven due to structural reasons. During installation, it is impossible to ensure that each lifting lug on the battery pack fits with the bottom surface of the frame, resulting in a distance tolerance between the lifting lugs of the battery pack and the bottom surface of the frame. At this time, if the bolts and nuts are forcibly tightened, the The lifting lugs on the battery pack are deformed under pressure, so a tolerance adjustment device is required to adjust the distance tolerance between the battery pack lifting lugs and the frame. However, the common tolerance adjustment devices on the market are generally complicated in structure and difficult to assemble withstand heavy loads

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