CN1565862A - Archimedes screw involute compasses - Google Patents
Archimedes screw involute compasses Download PDFInfo
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- CN1565862A CN1565862A CN 03132179 CN03132179A CN1565862A CN 1565862 A CN1565862 A CN 1565862A CN 03132179 CN03132179 CN 03132179 CN 03132179 A CN03132179 A CN 03132179A CN 1565862 A CN1565862 A CN 1565862A
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- central shaft
- bar
- axonometer
- slide
- compasses
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Abstract
The invention relates to a compasses especially an Archimedes spiral involute compasses. The compasses has a long central axis equipped with a rotary casing, and the rotary casing is provided with an elastic compression spring leaf, a small screw, a vertical screw cap board and a long column shaped gear. When the compasses is used, the central axis head should be pressed by a finger to make the central axis needle prick into the paper, the rotary casing should be controlled by other two fingers to rotate widdershins to make the long column shaped gear roll along the plane gear circumference and the small screw rotate in the vertical screw cap hole to push the vertical screw cap board to move outwards regularly, and the standard Archimedes spiral involute can be obtained. The invention has a simple structure, and convenient for manufacturing and use.
Description
Affiliated technical field
The present invention relates to a kind of compasses in the drawing instrument, especially a kind of Archimedian screw involute compasses of operating as common compasses.
Background technology
At present, the mapping of making design runs into the problem of picture spiral of Archimedes through regular meeting; but mapping person but suffers from the specific purpose tool of not drawing the Archimedian screw involute; all are free-hand drawing, very nonstandard, very not slick and sly; even use computer drawing; in the general drawing software, there is not the figure of Archimedian screw involute yet, also very not simple at present; very practical Archimedian screw involute compasses occur, and also do not have good solution now.
Summary of the invention
Can making the grade in order to solve, the problem of the Archimedian screw involute that draws of standard, the invention provides a kind of Archimedian screw involute compasses, use these compasses not only very standard, the slick and sly Archimedian screw involute that draws of standard very, and these compasses are simple in structure, make, use very convenient.
The technical solution adopted for the present invention to solve the technical problems is: these compasses comprise central shaft, rotating casing, elastic pressuring spring sheet, transmission component and paintbrush head five major parts; It is characterized in that: on long central shaft slide-bar (3), sliding fit is equipped with long rotating casing (2), and on the central shaft axonometer (7) of central shaft slide-bar (3) lower end, order is equipped with small casing (4), face gear (5) and hold-doun nut (6); On the fixing lug boss (16) of rotating casing (2) top one side, the upper end of fixed installation property making leaf spring (15), fixedly connected with the upper end of vertical nut plate (11) in the lower end of elastic pressuring spring sheet (15); The bottom of vertical nut plate (11) is equipped with paintbrush head (9), a horizontal screw cap hole is arranged at vertical nut plate (11) top, minor leading screw (13) therefrom cooperates and passes, on the minor leading screw (13) between vertical nut plate (11) and the rotating casing (2), be installed with elongated cylindrical gear (14), elongated cylindrical gear (14) and the engagement of face gear (5) coupling; The tip of little leading screw (13) is being pressed by elastic pressuring spring sheet (15), withstands in the recess of rotating casing (2) lower end.
During use, the light finger flicking is lived central shaft spindle nose (1), central shaft axonometer (7) is pricked on paper, paintbrush head (9) contacts paper gently, two fingers pinch rotating casing (2) top in addition, rotate counterclockwise, the vertical little tooth that drive elongated cylindrical gear (14) is rolling on face gear (5) border rolls; At this moment, drive little leading screw (13) and and then rotate,, can make vertical nut plate (11) that the increase of rule rate and the distance in the center of circle are arranged, paintbrush head (9) the Archimedian screw involute of standard slyness that also promptly can draw against the thrust of little leading screw (13) screw thread.
Its beneficial effect is: owing to adopted such scheme, use these compasses not only very standard, the slick and sly Archimedian screw involute that draws of standard very, and these compasses are simple in structure, make, it is very convenient to use.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples;
Accompanying drawing 1 is a structural representation of the present invention.
Accompanying drawing 2 is the structural representation of running part among the present invention.
Among the figure, 1 central shaft spindle nose, 2 rotate sliding sleeve, 3 central shaft slide-bars, 4 small casings, 5 face gears, 6 hold-doun nuts, 7 central shaft axonometers, 8 displacement paintbrush heads, 9 paintbrush heads, the big face gear of 10 imaginations, 11 vertical nut plates, the vertical nut plate of 12 displacements, 13 little leading screws, 14 elongated cylindrical gears, 15 elastic pressuring spring sheets, 16 fixing lug boss.
The specific embodiment
In the drawings, central shaft to be each section be whole circular shaft of different structure, it is divided into (7) three sections of central shaft spindle nose (1), central shaft slide-bar (3) and central shaft axonometers; Central shaft spindle nose (1) more slightly, shorter, its lower end is connecting long central shaft slide-bar (3), the diameter of central shaft slide-bar (3) is narrower than central shaft spindle nose (1); The junction of it and central shaft spindle nose (1) is formed with step, and this step is after central shaft slide-bar (3) is packed rotating casing (1) into, and can limit that rotating casing (2) is only rotatable can not be to top offset; The lower end of central shaft slide-bar (3) is connected with central shaft axonometer (7), the diameter of central shaft axonometer more is narrower than central shaft slide-bar (3), it and central shaft slide-bar (3) connection also are formed with step, the effect of step is to pack into behind the face gear in central shaft axonometer (7) upper end, can limit face gear (5) can be to top offset, limiting rotation sliding sleeve (2) simultaneously can not limit it and only rotate between the step of face gear (15) and central shaft spindle nose (1) lower end to bottom offset yet; The top of central shaft axonometer (7) is threaded, and it is fitted with hold-doun nut (6), after hold-doun nut is fastening, and can be firmly fixing the face gear (5) of central shaft axonometer (7) upper end of packing into.
In the drawings, rotating sliding sleeve (2) is a microscler sleeve pipe, and a side on its top has the fixing lug boss (16) of protrusion, has a hole on the fixing lug boss, by Screw, can firmly be fixed on elastic pressuring spring sheet (15) upper end on the fixing lug boss; The internal diameter that rotates sliding sleeve (2) rotates sliding sleeve (2) and is the assembling that is slidingly matched with center slide-bar (3) greater than center slide-bar (3).
In the drawings, vertical nut plate (11) is the lath that a middle part has horizontal screw hole, fixedly connected with the lower end of spring pressuring plate (15) in its top, because spring pressuring plate (15) has an inside pressure all the time, it is pressing vertical nut plate (11) that an inside pressure is also arranged; The bottom of vertical nut plate has mobilizable hinge joint joint, and its hinge joint joint is connected with paintbrush head (9), and by mobilizable hinge joint joint, paintbrush head (9) can be movable arbitrarily, can determine the initial picture point of helix easily.
In the drawings, elastic pressuring spring sheet (15) is the rubber-like metal clips, and its upper end and fixing lug boss are fixed, and the lower end is fixed with the upper end of vertical nut plate (11), it has an inside pressure all the time, is pushing away strong the withstanding in the recess that rotates sliding sleeve (2) bottom in top of little leading screw (13).
In the drawings, face gear (5) is a disc-shape, the border that is distributed on disk that its small tooth is vertical, it is installed in the upper end of central shaft axonometer (7), screw by hold-doun nut and central shaft axonometer, firmly fixing it, it be installed in little silk and shoulder the downward teeth of elongated cylindrical gear (14) on (13) and mate engagement mutually.
During use, in order to determine the pitch size of helix, the face gear that need only change different-diameter gets final product, because the number of turns that the elongated cylindrical gear rolls and rotates in a week along large diameter teeth is greater than the number of turns of rolling and rotating in a week along the teeth of minor diameter, the number of turns of rotating synchronously with little leading screw is also many, therefore, the distance of vertical nut plate (14) institute displacement is just big, has just determined that also the pitch of helix becomes big.Therefore, according to the needs that pitch changes, each Archimedian screw involute compasses must be equipped with the face gear of several different size diameter.
Claims (6)
1, a kind of Archimedian screw involute divider calipers, these compasses comprise central shaft, rotating casing, elastic pressuring spring sheet, transmission component and paintbrush head five major parts; It is characterized in that: on long central shaft slide-bar (3), sliding fit is equipped with long rotating casing (2), and on the central shaft axonometer (7) of central shaft slide-bar (3) lower end, order is equipped with small casing (4), face gear (5) and hold-doun nut (6); On the fixing lug boss (16) of rotating casing (2) top one side, the upper end of fixed installation property making leaf spring (15), fixedly connected with the upper end of vertical nut plate (11) in the lower end of elastic pressuring spring sheet (15); The bottom of vertical nut plate (11) is equipped with paintbrush head (9), a horizontal screw cap hole is arranged at vertical nut plate (11) top, minor leading screw (13) therefrom cooperates and passes, on the minor leading screw (13) between vertical nut plate (11) and the rotating casing (2), be installed with elongated cylindrical gear (14), elongated cylindrical gear (14) and the engagement of face gear (5) coupling; The tip of little leading screw (13) is being pressed by elastic pressuring spring sheet (15), withstands in the recess of rotating casing (2) lower end.
2, a kind of Archimedian screw involute divider calipers according to claim 1 is characterized in that: central shaft to be each section be whole circular shaft of different structure, and it is divided into (7) three sections of central shaft spindle nose (1), central shaft slide-bar (3) and central shaft axonometers; Central shaft spindle nose (1) more slightly, shorter, its lower end is connecting long central shaft slide-bar (3), the diameter of central shaft slide-bar (3) is narrower than central shaft spindle nose (1), the junction of it and central shaft spindle nose (1) is formed with step; The lower end of central shaft slide-bar (3) is connected with central shaft axonometer (7), and the diameter of central shaft axonometer more is narrower than central shaft slide-bar (3), and it and central shaft slide-bar (3) connection also are formed with step; The top of central shaft axonometer (7) is threaded, and it is fitted with hold-doun nut (6), and is after hold-doun nut is fastening, firmly fixing the face gear (5) of central shaft axonometer (7) upper end of packing into.
3, a kind of Archimedian screw involute divider calipers according to claim 1, it is characterized in that: rotating sliding sleeve (2) is a microscler sleeve pipe, one side on its top has the fixing lug boss (16) of protrusion, have a hole on the fixing lug boss, by Screw, firmly be fixed on the fixing lug boss upper end of elastic pressuring spring sheet (15); The internal diameter that rotates sliding sleeve (2) rotates sliding sleeve (2) and is the assembling that is slidingly matched with center slide-bar (3) greater than center slide-bar (3).
4, a kind of Archimedian screw involute divider calipers according to claim 1, it is characterized in that: vertical nut plate (11) is the lath that a middle part has horizontal screw hole, fixedly connected with the lower end of spring pressuring plate (15) in its top, the bottom of vertical nut plate has mobilizable hinge joint joint, and its hinge joint joint is connected with paintbrush head (9).
5, a kind of Archimedian screw involute divider calipers according to claim 1, it is characterized in that: elastic pressuring spring sheet (15) is the rubber-like metal clips, its upper end and fixing lug boss are fixed, the lower end is fixed with the upper end of vertical nut plate (11), it has an inside pressure all the time, is pushing away strong the withstanding in the recess that rotates sliding sleeve (2) bottom in top of little leading screw (13).
6, a kind of Archimedian screw involute divider calipers according to claim 1, it is characterized in that: face gear (5) is a disc-shape, the border that is distributed on disk that its small tooth is vertical, it is installed in the upper end of central shaft axonometer (7), by screwing of hold-doun nut and central shaft axonometer, firmly fixing it, it be installed in little silk and shoulder the downward teeth of elongated cylindrical gear (14) on (13) and mate engagement mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03132179 CN1565862A (en) | 2003-07-03 | 2003-07-03 | Archimedes screw involute compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03132179 CN1565862A (en) | 2003-07-03 | 2003-07-03 | Archimedes screw involute compasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1565862A true CN1565862A (en) | 2005-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03132179 Pending CN1565862A (en) | 2003-07-03 | 2003-07-03 | Archimedes screw involute compasses |
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|---|---|
| CN (1) | CN1565862A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101618643B (en) * | 2008-07-01 | 2011-01-19 | 吴英杰 | Stepless involute planning |
| CN106904030A (en) * | 2017-04-21 | 2017-06-30 | 郑州航空工业管理学院 | A kind of PROFILE IN PLANE CONTACT OF INVOLUTE drawing instrument |
-
2003
- 2003-07-03 CN CN 03132179 patent/CN1565862A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101618643B (en) * | 2008-07-01 | 2011-01-19 | 吴英杰 | Stepless involute planning |
| CN106904030A (en) * | 2017-04-21 | 2017-06-30 | 郑州航空工业管理学院 | A kind of PROFILE IN PLANE CONTACT OF INVOLUTE drawing instrument |
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