Force-value-adjustable small-included-angle ratchet wheel positioning device with V-shaped positioning grooves

Abstract

The invention discloses a force-value-adjustable small-included-angle ratchet wheel positioning device with V-shaped positioning grooves. The force-value-adjustable small-included-angle ratchet wheel positioning device comprises a ratchet wheel and positioning components. The V-shaped positioning grooves are distributed in the circumference of the ratchet wheel alternately. A positioning pin, a spring and a positioning nut are arranged on each positioning component sequentially. Each positioning pin contacts with the circumferential surface of the ratchet wheel under the pressure of the corresponding spring. The two positioning pins are sequentially positioned in the different V-shaped positioning grooves formed in the circumference of the ratchet wheel. The elastic deformation degree of each spring is adjusted through rotation of the corresponding positioning nut. The force-value-adjustable small-included-angle ratchet wheel positioning device has the advantages that accurate positioning of small included angles on the circumference of the ratchet wheel is achieved by the aid of the V-shaped positioning grooves, and positioning interference is relieved; working load of the springs is changed through adjustment of the positioning nuts on the positioning components, the acting force between the positioning pins and the ratchet wheel is further adjusted, and accordingly, accurate adjustment of operating force values is achieved; when the positioning pins apply positioning acting force or damping acting force to the ratchet wheel, the acting positions of the positioning pins and the ratchet wheel are different, so that abrasion of the positioning pins and the ratchet wheel are reduced, and positioning functions are not affected by abrasion of arcs at the tips of the positioning pins.

Description

technical field [0001] The invention belongs to the technical field of locomotive console electric appliances, and in particular relates to a small-angle ratchet positioning device with V-shaped positioning grooves and adjustable force value. Background technique [0002] Positioning devices are widely used in various mechanical equipment to lock some important positions of the mechanism during operation. Because the structure of the ratchet positioning device is simple and the positioning is clear and reliable, it is widely used in some operating equipment, such as the electrical appliances of the console of the locomotive. state, while meeting the space constraints on the positioning device, which requires that the positioning device should be compact in structure, accurate and reliable in positioning, and able to realize dense gear positioning at small angles. In addition, in order to meet the different demands of users on the operating force value of the electrical appl...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a small-angle ratchet positioning device with V-shaped positioning grooves with adjustable force value, which solves the problem of positioning interference existing in the existing ratchet positioning device and the fact that the operating force value for driving the ratchet rotation cannot be adjusted. shortcoming

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