Long-service-life high-precision counter

Abstract

The invention discloses a long-service-life high-precision counter. The device comprises a shell and a main shaft, Torsion spring and positioning disc, a driving plate and a plurality of groups of character wheels, the positioning disc is fixedly arranged in the shell; the driving plate is fixedly sleeved on the main shaft; the torsion spring is sleeved on the main shaft; the plurality of groups of character wheels are rotationally arranged on the main shaft; the lowest-bit character wheel is a first-bit character wheel; ratchets are arranged on the inner wall of the first character wheel; a poking pawl is arranged on the periphery of the poking disc; positioning pawls are arranged on the periphery of the positioning disc; A carry wheel is arranged between every two adjacent character wheels, long teeth and short teeth are arranged on the carry wheel in a staggered mode, carry teeth are arranged between the adjacent side faces of the adjacent character wheels and on the side faces of the high-position character wheels, second teeth are arranged on the side faces of the low-position character wheels, carry grooves are formed between the second teeth, and two wedge-shaped faces are arranged at the ends, matched with the carry grooves, of the long teeth. The integral structural design is adopted, the integration level is high, the wedge-shaped face is machined on the carry wheel,and therefore the carry wheel is not prone to being clamped, transmission is more sensitive, and carry is more accurate.

Description

technical field [0001] The invention relates to the technical field of counters, in particular to a long-life and high-precision counter. Background technique [0002] The mechanical counter has a plurality of character wheels arranged in sequence. Generally, the character wheels are arranged from low to high in decimal system. The first character wheel is the lowest character wheel. There is also a carry wheel between adjacent character wheels. Drive the carry wheel to rotate one grid, and then drive the adjacent high-order character wheel to rotate one bit to complete the carry operation. Between the opposite sides of adjacent character wheels, the side of the lower character wheel has a tooth ring with a groove on the circumference, and the high character wheel has the number of teeth corresponding to the base system. The lower character wheel rotates once, and the tooth ring drives The carry wheel rotates one grid, thereby making the high-order character wheel rotate on...

AI Technical Summary

Problems solved by technology

[0003] However, most of the existing mechanical counters have complex structures. During the carry process, the carry wheel is easily stuck in the tooth ring, causing the high-order character wheel to rotate together with the low-order character wheel, which affects the counting of the counter. The integration level is poor, resulting in a larger volume of the counter

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