Chain-driven intermittent motion mechanism

Abstract

The invention relates to a chain-driven intermittent motion mechanism, which is composed of a first chain (1), a second chain (7), a first sprocket wheel (2), a second sprocket wheel (4), an intermittent motion sprocket wheel (3) and rollers (5), wherein, the first sprocket wheel (2) and the second sprocket wheel (4) are coaxially fixed; the first chain (1) and the second chain (7) are respectively packed in the first sprocket wheel (2) and the second sprocket wheel (4); the two ends of the rollers (5) are respectively and fixedly fixed at the inner sides of the first chain (1) and the second chain (7); and the intermittent motion sprocket wheel (3) is externally engaged with the rollers (5) at the inner sides of the first chain (1) and the second chain (7). The invention has a compact structure, convenient processing and manufacture, low maintenance cost and wide application.

Description

technical field [0001] The invention belongs to the field of mechanical transmission, in particular to a chain transmission intermittent motion mechanism. Background technique [0002] Mechanical equipment, especially in automated machinery, often requires certain actuators to achieve intermittent motion that periodically starts and stops. The mechanism that can realize this type of action is called intermittent motion mechanism. At present, ratchet mechanisms, sheave mechanisms, incomplete gear mechanisms, and cam-type intermittent motion mechanisms are commonly used in mechanical equipment, among which only incomplete gear mechanisms can achieve output with a constant average speed. However, the incomplete gear structure is complex to process, the driving and driven wheels cannot be interchanged, and the cost is relatively high. "Journal of Wuhan Institute of Grain Industry" No. 2, 1988 introduced a single-drive sprocket intermittent motion mechanism. Although this mechan...

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Problems solved by technology

However, the incomplete gear structure is complicated to process, the driving and driven wheels cannot be interchanged, and the cost is relatively high

"Journal of Wuhan Institute of Grain Industry" No. 2, 1988 introduced a single-drive sprocket intermittent motion mechanism. Although this mechanism improved the above-mentioned drawbacks to a certain extent, its transmission required driving and driven sprockets or tensioning sprockets and Multiple sprockets such as the gap motion sprocket occupy a large space; the pin shaft of the toggle intermittent motion sprocket adopts a cantilever beam structure, which has poor rigidity and is not suitable for bearing large loads, and the motion stability is poor

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