SU38069A1 - Instrument for microscopic analyzer rocks - Google Patents

Description

The author's certificate No. 38066 describes a method of microscopic analysis of rocks, according to which the content of individual minerals in the rock is determined by the number of observation points that fall on each mineral with a uniform distribution of them on the polished section of the studied rock. To implement this method, a device is used in which to move the slides of the microscope table at equal distances when observing. keys counting mechanism.

In order to speed up the production of observations of individual points and their counting in the proposed instrument, made in the form of a key counter connected to a table microscope, the karantis shaft is connected to the latter through a velocity box, which makes it possible to vary its rotational speed.

In FIG. 1 shows the front view of the instrument; FIG. 2-vertical cross section of the counter; FIG. 3-side view of the brake and switch options; ig. same, front view; FIG. 4 view

in front of the right side wall; FIG. 5 - the same, side view. and vertical section; FIG. b-front view of the left side wall; FIG. 7 is the same side view; FIG. 8 is a front view of the inner partition wall; FIG. 9 is the same, side view and vertical section; FIG. 10-front view of the ball frame; FIG. 11, too, side view; FIG. 12 is a vertical section of the velocity box along the CD of FIG. one; FIG. 13 is a front view of the right countable cylinder; FIG. 14 - the same, side view and cut; FIG. 15-part teeth of the right counting cylinder; FIG. 16-pedal in perspective; FIG. 17 explains the selection of individual points on a thin section of a rock using the proposed instrument, and FIG. 13 is a perspective view of the joint between the propeller shaft and the microscope stage.

Between the two side walls 7P and 34 are placed on the tubular axis J8 counting cylinders 7, each driven from the corresponding key transmission 2 with ratchet tabs 3, hooking on the teeth of the counting cylinders. An axle 25 extends inside the tubular axle / 5, at the end of which a leading pair of wheels W is attached to gear box 57 of the gear box 72 mounted on

side wall 5- / device. The microscope stage is connected to the counter with a propeller shaft 75 through the gearbox 12.

Each counter (Fig. 1) consists of two counting cylinders 7 with 100 teeth each and with applied on; cylinder surfaces with numbers from 00 to 99.

When pressing key 2 (or hitting it), the right tongue 3 of the pedal ratchet moves the right counting cylinder 7 by one tooth, and the next order number is set in the window of the index plate 8. The left tongue 5 (fig. 16) of the ratchet at this time does not touch the teeth of the second left cylinder, since the diameter of this tooth is smaller than that of the right cylinder, by a double tooth height. The left cylinder will remain stationary until those nopj until the right cylinder makes a full turn. During the hundredth strike on the keys, the ratchet, falling into a deeper recess 77 (Fig. 15) between the teeth of the right counting cylinder, simultaneously hooks the left cylinder with the left tongue and moves it to one tooth. Further, the right cylinder again begins to rotate alone.

The possibility of reverse rotation of the meter cylinders is eliminated by using the second ratchet 76 (Fig. 2), installed for this by the micrometer screw, when the meter is aligned to the appropriate position.

In order to prevent the cylinder 7 from slipping over more than one tooth during a severe blow, a brake is applied from a piece of rubber or leather sitting on a spring plate on the body of the lower ratchet 75 slide.

The counting cylinders 7 are mounted on the tubular axis 18 (FIG. 5), which, behind the right sidewall 19, has a wide pulley handle 20. On the side facing the wall, this pulley has in one place a notch 2 mm deep into which the bar enters 7 (Fig. 1). The latter does not allow the tubular axis T8 to rotate with the calculating cylinders during operation.

Before starting the counting, the strap 7 is pressed from the finger (from right to left) out of the notch in the pulley-knob 20, and the latter is turned by hand on

seb All counting cylinders 7 rotate together with the axis, since they are braked on the tubular axis.

A small brad is screwed into the surface of each cylinder, which touches the corresponding protrusion of the bar when the number 00 appears in the window; then the counting cylinder, which is held up by the bar, is already sliding on the axis, not rotating.

Thus, with one turn of the pulley-knob 20, all cylinders 7 are placed in the initial position (zero), and the strip 7, pressed against the spring, again feeds into the notch of the pulley, and the meter is ready for operation.

Each pedal key 2 (Fig. 1 and 16) is made of such a length and with such an axis position relative to the counter axis, so that the trajectory of the axis of the ratchet 3 of the pedal is approximately parallel to the circumference of the counting cylinder of the counting cylinder 7.

The tubing bushing at the rear end of the pedal and the guides 6 in the front part thereof (Figs. 1 and 2) ensure the correct movement of the pedal and exclude the possibility of any random unnecessary gearing.

Bottom movement of the pedal is limited to a 4-screw variator with a rubber pad (Fig. 2). This screw is the same as the screw in the guides, limiting the movement of the pedal up, at the beginning of work (for the manufacture of the Device) you; r. is returned and placed in such a position as to limit the movement of the pedal in the desired interval. Up (in reverse position), the pedal is raised by a leaf spring 5.

A steel double-pin reed ratchet is located on an axis fixed in the upper part of the projection of the pedal and is pressed against the gears of the counting cylinders with a small plate spring. A cog 22 is fastened slightly below the axis of the ratchet in each pedal; it has a rein pad from below to soften the blow. With this cog, the pedal lowers the front cross-section of the balance frame 9 down (fig. 2, 10 and 11) as it moves. When calibrating the device, the cogs are placed in such a position that, in the upper position of the pedal, they all slightly lightly cross the cross member of the balance frame P.

Thus, the swing of one or another pedal is transmitted each time to the balancing frame 9, which in its left part (on the left swinging lever) is provided with a ratchet pin 24, which presses the spring 23 to the ratchet wheel driving the pair W.

.

The driving pair consists of two wheels: a large gear and a small ratchet. Both are mounted on the same axis 25, passing inside the tube axis 18 of the meter and having a handle 26 at the end for rotating the pair by hand (Fig. 5). Each movement of the balance frame 9 turns the lead pair per Vso revolution (as there are 50 teeth in the ratchet wheel). . - Since the angles of rotation of the drive pair 10 at each even very sharp impact on the pedals m 2 must be the same (equal to Vso turnover), to avoid excessive turning the steam brakes the brake 7 /.

According to the second construction of the brake and switch shown in FIG. 3 and 3, braking is performed only at the moment when the balance frame P completes its swing. Varying the braking moment during the alignment of the device can be moved along a special slot in the balance frame of the axis of the lever, which presses the brake rocker. The reverse rotation of the entire pair is possible manually using the handle on its axis to the right. The ratchet switch is previously pulled out of the teeth of the drive pair. The rotation of the drive pair is transmitted through the gearbox 72 to the drive shaft 7J. One or the other speed of rotation is established by moving the lower axle 30 of the gearbox with three gears 27, 28 and 29 mounted on it (Fig. 1 and 12). The gearbox wheel 3J, which is directly coupled to the large wheels of the drive pair, moves freely along its key along the key.

In one position or another, the bottom axle 30 of the box of speeds is installed by means of a frame 32 mounted on it with a spring at the upper lip. This spring drops into the corresponding recess in the slot of the casing 33 of the box.

the help of the sliding plate (into the inner wall of the counter) and one screw (to the left outer wall).

The propeller shaft 13 has three elbows (two mates), 5 of which can be made sliding. From the cardan shaft, the rotation is transmitted to the screw, which attaches to the ordinary sled of the microscope with the help of a screw and a peg. .. A serrated gear is put on the slider, which for this purpose is equipped with a rubber ring. grinding on the table of the microscope.

The selection of individual points on the thin section is made by a straight line m / fig. 17), and the section for this is moved around the table of the microscope using an ordinary slide, used to move the section along two coordinate axes.

The screw screw of the slide rotates automatically, moving each time you hit one or another key 2 with a microscope examined under a microscope for one specific, predetermined interval, Depending on the grain size, the section structure, the required accuracy, etc., one or the other interval is selected. By varying the interval between points and between the lines, it is possible to obtain from several hundred points to 10,000 or more points on one section.

To get the percentage of components in thin sections, you need to know what part of the total number of selected points fell on one or another mineral (component).

Each key is conditionally attached the value of its component (or a certain amount of them) in this section. The cut is inserted into the slide of the microscope and is set with the screw of the slide at the beginning of one of the lines. Then the counter reads are zeroed, and the speed box is set at a certain interval, after which the device is turned on (by connecting the shaft or screwing on the screw, or putting the gear on the creamer of the sled).

When counting, each time the key-pedal is pressed, the corresponding component of which is currently designed to cross the threads in the field of view of the microscope. With each pressure, each point is fixed on the corresponding counter, and the cut is moved in the field of view by one interval horizontally, from right to left. At the end of one line (100-300 points), the knob of the switch is lowered, and a section with two, three turns of the handle of the axis 26 of the leading pair is brought to the opposite position. Then, with the second screw on the slide, it moves along the back to the next line. The switch handle rises, and the slip begins to move along the second line, etc. The work with the manufactured model has shown that it is possible to take a second with sufficient — up to three to four points on average — and thus

reduce the time needed for counting to 10-20 minutes at 2000-3000 points. At the end of the counting, the number of points on one or another component is indicated in the window of each counter.

The subject matter of the invention.

A device for carrying out the method referred to in claim 1 of author's certificate No. 38066, made in the form of a microscope connected to the table with a cardannogue keyboard counter, characterized in that in order to change the speed of rotation of the cardan shaft 13 with one stroke of the key counter engaged with the driveshaft 13 through the gearbox 72.

Fig.17fig Srig. E Shig.Z Fig.Z. to FIG. 4, „G. 5 of FIG. B of FIG. To the dependent author’s testimony of M. A. Bukhman 38069 „r.s. FIG. 3 fng.SH of FIG. and FIG. 13 of FIG. 14 y