Medical drug material conveying U-shaped screw shaft closed transmission system

Abstract

The invention provides a medical drug material conveying U-shaped screw shaft closed transmission system. The medical drug material conveying U-shaped screw shaft closed transmission system is composed of sleeve arc closed vertical chain rings with sleeve arc faces and U-shaped screw shaft closed flat chain rings with the transmission contact faces being cylindrical faces; the U-shaped screw shaftclosed flat chain rings and the sleeve arc closed vertical chain rings are alternately connected with each other, and then a closed chain is formed; the U-shaped screw shaft closed flat chain rings comprise U-shaped flat chain rings with connecting holes and further comprise screw shafts mounted in the connecting holes of the U-shaped flat chain rings through fastening bolts and provided with cylinder transmission faces; and the cylindrical faces of the U-shaped screw shaft closed flat chain rings and the sleeve arc faces of the sleeve arc closed vertical chain rings are provided with the same reference contour faces, and face-contact transmission is formed. The chain rings are in face-contact transmission, the bearing capacity is large, the contact stress is small, abrasion resistance isachieved, the pitch is not changed, transmission is stable, precise transmission can be achieved, the service life is long, overhauling and maintaining are convenient, the cost is low, and thus the medical drug material conveying U-shaped screw shaft closed transmission system can be widely applied to a medical drug material conveying equipment transmission system.

Description

Technical field [0001] The invention relates to a U-shaped screw shaft closed transmission system for medical drug material conveying, which can be widely used in the transmission system of medical drug material conveying equipment. Background technique [0002] The existing medical drug material conveying equipment relies on the chain to drag the carrier, and relies on the carrier to realize the transportation of materials. In the traditional round link chain, the links are woven from round steel. All the links have the same structure. When used, they are divided into flat links and vertical links according to different positions. In the traditional ring chain structure, because the bending radius of the ring is larger than the radius of the round steel, the chain links form a line contact transmission. When the line contact is under the same force, the contact surface of the chain link is small, the stress is large, and it is easy to wear. [0003] According to the structure of ...

AI Technical Summary

Problems solved by technology

The line contact generated by the above analysis of its structure is prone to wear and tear, and the pitch of the chain ring will increase after wear and tear. The change of the pitch will cause the transmission to be unstable, and the instability will aggravate the wear, thus causing a vicious circle and making the chain life extremely long. Low

This kind of structural characteristics due to different pitch changes due to different redirection angles also brings difficulties to the standardization of conveying equipment manufacturing

[0004] The traditional ring chain is welded and closed, and it needs to be cut according to the actual length when used, which will cause waste

When docking, an additional connecting ring is required, which is costly

When there is a problem with a chain link, gas cutting is usually used to dismantle it destructively. Not only is it difficult to repair and maintain, it takes a long time, but also needs to prepare repair tools, set up flammable and explosive gas safety protection, and cause environmental pollution and other disadvantages

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