Outlet wheel, outlet wheel feeding mechanism and crank assembly assembling system

Abstract

The invention discloses an outlet wheel. The outlet wheel comprises an assembling shaft barrel, wherein one end of the assembling shaft barrel is fixedly connected with a driving disc, driving teeth are arranged on the driving disc; and the outlet wheel is characterized in that the driving teeth comprise a plurality of driving protrusions which are of bullet-shaped structures and arranged on the end face, away from the assembling shaft barrel, of the driving disc, the multiple driving protrusions are evenly distributed around the edge of the driving disc at intervals, a columnar convex shoulder for feeding posture adjustment is arranged on the outer side of the assembling shaft barrel, a pair of back-to-back and parallel posture adjustment planes and a pair of back-to-back and equal-diameter arc surfaces are arranged in the circumferential direction of the convex shoulder for feeding posture adjustment, and the distance between the pair of posture adjustment planes is smaller than the diameter of the arc surfaces. The invention further discloses an outlet wheel feeding mechanism and a crank assembly assembling system. The outlet wheel has the advantage that the outlet wheel and a cam shaft can be accurately, reliably, automatically and precisely assembled.

Description

technical field [0001] The invention belongs to the field of membrane gas meters, and in particular relates to an assembly system of an outlet wheel, an outlet wheel feeding mechanism and a crank assembly. Background technique [0002] The diaphragm gas meter is mainly composed of a metering part (including two metering boxes with flexible diaphragms inside each), a transmission part (including a diaphragm, a folding plate, a vertical shaft, a rocker arm, a connecting rod, a crank, a shift fork and a valve cover) ), the counting part and the housing, wherein, except for the housing, the remaining parts are collectively referred to as the movement of the diaphragm gas meter. The patent document with the notification number CN201463953U promptly shows the structure of the movement part of the diaphragm gas meter. [0003] The working principle of the membrane gas meter is: a diaphragm (usually made of synthetic rubber) is sealed at the center line of each metering box, and th...

AI Technical Summary

Problems solved by technology

[0005] However, because there are many accessories in the membrane gas meter and the structure is relatively complicated, especially the assembly between some key components, the fully automated assembly system is still prone to poor assembly quality, and even damage to the structure of the components during assembly.

For example, the outlet wheel and pointer combination in the crank assembly (including "error adjustment mechanism" (refer to: "error precision adjustment mechanism of reciprocating valve gas meter" shown in the announcement number CN201273832Y), "bonnet" and "guide rod frame In the assembly between the camshafts in "), the existing manipulator and tooling often crush the driving teeth on the export wheel or the camshaft during the press-fitting process, which seriously affects the product measurement accuracy, automatic assembly efficiency and is difficult to ensure The smooth progress of automated assembly

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