Dynamic combined screw device and guide system for the dynamic combined screw device

Abstract

The invention provides a dynamically combined spiral device and a guidance system for the dynamically combined spiral device. The spiral device comprises a lock catch type hollow screw rod structure, wherein the lock catch type hollow screw rod structure is formed by mutually buckling a supporting spiral slice and a linking spiral slice along the axial direction; the supporting spiral slice is a uniform section slice of which the section height is greater than the section width; two groups of rectangular positioning holes are formed at equal intervals, keeping certain width away from the upper edge and the lower edge of the uniform section slice in the uniform section slice; the linking spiral slice is a uniform section slice of which the section height is smaller than the section width; one group of positioning teeth are distributed at equal intervals along one side of the uniform section slice; the positions of the positioning teeth correspond to the positions of positioning holes in the supporting spiral slice; the guidance system comprises a base component, a hollow positioning column and a driving component. The dynamically combined spiral device and the guidance system for the dynamically combined spiral device have the advantages of simple and compact structure, low cost, simplicity in operation, good performance, wide application range and the like.

Description

technical field [0001] The present invention mainly relates to the field of mechanical transmission equipment, in particular to a new type of hollow screw structure in which two sets of spiral steel sheets stored separately are screwed into each other through a locking structure to realize the configuration, and the realization of this through discretely distributed spiral guide wheels Drive guide system in lock configuration. Background technique [0002] The traditional screw drive transmits motion and power through the screwing of the screw and the nut. The dynamic combined screw is a dynamic combined screw transmission idea proposed by using two mechanical innovation design modes of decomposition and combination. That is, by cutting the traditional hollow rectangular screw along the helical line at the root of the thread, it is decomposed into two cylindrical hollow screws whose axes are coincident and nested with each other; they are stored separately when not working,...

AI Technical Summary

Problems solved by technology

The structure has certain structural defects in engineering practice

At the same time, the design of the meshing and meshing mechanism (guide system) corresponding to this structure is very complicated, and the application field is obviously limited; the positioning teeth and positioning holes are distributed along the axial direction, and the area for lateral load bearing force is small, and the lateral force It is easy to lose stability; when it is in a vibration condition for a long time, it is easy to cause the loosening of the mesh

In general, it is mainly reflected in: 1. The embedded screw can only bear the axial pressure load, any axial tension, radial load and uneven load will cause the screw structure to fail; 2. In the case of large vibration and large swing In the workplace, it is prone to tipping and instability, resulting in a decrease in working stability; 3. The corresponding meshing mechanism (guide system) has a very complicated structure and high cost; 4. The corresponding driving method is single, and it is difficult to cope with complex and changeable work. 5. The lack of corresponding pre-tightening structure may easily cause meshing loosening and failure

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