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Coaxial coarse/fine focusing structure for microscope platform adjustment
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A coaxial structure, microscope technology, applied in microscopes, optics, instruments, etc., can solve the problems of short service life, easy wear of gears, complex transmission structure, etc., and achieve the effect of not easy to wear and prolong service life.
Active Publication Date: 2012-05-23
NINGBO ZHANJING OPTICAL INSTR
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[0003] The purpose of the present invention is to provide a coarse and fine focus adjustment mechanism for the microscope platform in view of the defects of the above-mentioned prior art that the transmission structure of the coarse and fine focus adjustment structure is complicated, the gears are easy to wear during the transmission process, and the service life is short. The focal coaxial structure can achieve the purpose of simple structure, not easy to wear and long service life
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Embodiment 1
[0030] Such as Figures 2 to 6 As shown, a coarse and fine focus adjustment coaxial structure for microscope platform adjustment includes a support structure, a fine movement structure, a coarse movement structure and a conjoined gear structure. The support structure includes a curved arm 1, left and right positioning plates 2, 3, ball head cover 4 and positioning nut 5, the micro-motion structure includes left and right micro-handwheels 6, 7, micro-motion shaft 8, 3 large steel balls 9, left and right micro-adjustment bearings 10, 11, steel balls Cover 12 and stage clip 13, described coarse motion structure comprises left and right coarse hand wheel 14,15, left and right binocular nut 16,17, left and right friction plate 18,19 and coarse motion gear bar 20; 1. The right side positioning plates 2 and 3 are fixedly connected with the curved arm 1 on both sides of the curved arm 1; the coarse motion gear rod 20 is a columnar body structure with a central through hole, and the fi...
Embodiment 2
[0042] Such as Figures 2 to 6 As shown, a coarse and fine focus adjustment coaxial structure for microscope platform adjustment includes a support structure, a fine movement structure, a coarse movement structure and a conjoined gear structure. The coarse motion structure includes left and right coarse handwheels 14, 15, left and right binocular nuts 16, 17, left and right friction plates 18, 19 and a coarse motion gear rod 20. The coarse-moving gear rod 20 includes six sections of columns with different thicknesses, from right to left, there are A part 202 , B part 203 , C part 204 , D part 205 , E part 206 , and F part 207 . The longitudinal active transmission teeth 21 on the outer side of the rod D portion 205 are helical teeth 212; the helical teeth 212 mesh with the teeth of the conjoined gear structure (not shown in the figure).
[0043] The coarse motion focusing process of the present invention: turn the left and right coarse handwheels 14, 15 to drive the coarse mo...
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Abstract
The invention discloses a coaxial coarse / fine focusing structure for microscope platform adjustment, which belongs to the technical field of microscope platform adjustment devices, and comprises a support structure, a fine structure, a coarse structure and a conjuncted gear structure, wherein the support structure comprises a bent arm, a left positioning plate, a right positioning plate and a ball link; the fine structure comprises a left micro handwheel, a right micro handwheel, a fine shaft, three large steel balls, a left micro bearing, a right micro bearing, a steel ball bushing and a compressed spring; the coarse structure comprises a left coarse handwheel, a right coarse handwheel, a left twin-eye nut, a right twin-eye nut, a left friction plate, a right friction plate, and a coarsegear rod; the coarse gear rod is in a cylindrical structure with a central through hole, and the fine shaft is arranged in the central through hole of the coarse gear rod; the right part of the coarse gear rod is uniformly provided with three steel-ball holes, and the three large steel balls are respectively arranged in the three steel-ball holes; and the steel ball bushing is arranged among the right positioning plate and the three large steel balls. The coaxial coarse / fine focusing structure disclosed by the invention has the advantages that the structure is novel, and easy to process and assemble; and the large steel ball is not easy to wear, thereby prolonging the service life of a product.
Description
technical field [0001] The invention relates to a coarse and fine focus adjustment coaxial structure, in particular to a coarse and fine focus adjustment coaxial structure for microscope platform adjustment, which belongs to the technical field of microscope platform adjustment devices. Background technique [0002] The height of the workbench of conventional microscopes is fixed, which brings inconvenience to operators of different heights when adjusting the focus. For this reason, people have designed a focusing structure that can lift the workbench up and down, and in order to avoid microscope work. The table top produces a large range of ups and downs, and people have designed a coarse and fine focus adjustment structure, such as figure 1 As shown, the coarse and fine focus adjustment structure includes a set of gear adjustment groups, the gear adjustment group includes gear sets 1, 2, and 3, the fine movement wheel is fixedly connected to the fine movement shaft, an...
Claims
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Application Information
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