SU781853A1 - Electro-mechanical counter - Google Patents

Description

one

The invention relates to a technique of recalculating and indicating the number of electric pulses in various. electronic and electromechanical devices, in particular for subaccount of the number of cycles of operation of devices critical to the weight characteristics.

| an electromechanical meter with a magnetic system is known, in which the measles is made in the form of a single-arm 10 unbalanced lever, at one end of which a dog or similar element is attached, which serves to move the display and counting device 1.15

The disadvantage of this counter is the large size and instability of operation under mechanical stress conditions.

The closest to the proposed technical solution is an electromechanical counter, which contains a faceplate mounted on the board, a coil located parallel to the axis of digital disks, magnetic poles 25, mounted on opposite ends of the coil, measles made in the form of a two-arm lever balanced axis of rotation of a hull having two side AOR

plates, which are mounted in front of the two pins 2.

The disadvantages of this counter are the high power consumption, the increased dimensions, the increased labor intensity of manufacture.

The purpose of the invention is to reduce the size of the counter.

This goal is achieved by the fact that in the electromagnetic counter one arm of the lever is trapezoidal and connected through the ratchet to the axis of digital disks, the other lever arm is V-shaped and located in the area of magnetic pole sections of the coil, which are perpendicular to the plane of the front panel, front panel is made with overhangs.

FIG. 1 shows the proposed electromechanical counter (the krpak, the housing and the front panel are shown in section), the side view in FIG. 2, the counter without a cover and the front panel, top view.

Claims (1)

The electromechanical counter consists of a coil 1 located parallel to axis 2, a counting indicating device j consisting of digital disks 3, a ratchet 4, is a hub of the lowest-order digital disk, and gears 5 that sit freely on axis 6 located parallel to axis 2 digital drives. Two magnetic pole sections 7 and 8, fixed at opposite ends of coil 1, are bent to the size of the coil along its axis in a plane perpendicular to the plane of the front panel 9 of the counter. Parts 10 and 11 of the magnetic pole sections interact with the core 19 Magnetic pole sections 7 and 8 are at the same time part of the housing, plate 12 with outlet pins is attached to them, and ends 13 and 14 of the magnetic pole sections 7 and 8 are attached to the joint 15 counter flush with it. In parallel lateral sides 16 and 17 of the meter case, the axes 2 and 6 of the counting device and the axis 18 of the core 19, which is a double-arm lever with different arm lengths, are attached, with the smaller arm 20 of the core being V-shaped and interacting with parts of the pole sections and 11, and at the end of the longer along the trapezoidal shoulder 21 a doggie is fixed: 22 with the possibility of turning around the pinning axis. The implementation of the core in the form of a two-arm lever makes it possible to balance it relative to the axis of rotation, which increases the reliability of the counter operation under mechanical stress conditions. The use of different lengths of the shoulders allows, when the ratchet mechanism is sufficient, both of them swiveling the digit of the counter device by one digit for one counter operation, to create the smallest air gap between the pole sections and the core. To ensure a close fit of the core and the pole sections, they are precisely refined as assembled with a coil. The adjustment of the magnitude of the necessary .ODIMIC stroke of the core is provided by a stop 23 having an oval shape. The return spring 24 is attached at one end to the protrusion of the pawl 22, and at the other end to the stamped holder 25, which also serves as a guide for the working end of the driving pawl 22. A flat spring fixed to the body 15 is used as a locking pawl 26, which is adjustable. Lamellar plates serve to fasten the axes 2, 6 and 18 of the digital dies, gears and co. On the body 15, the legs 28 are bent for fastening the counter to the device. Such a method of shrinking: allows you to install the proposed counter in the device with splash-proof performance. On the digital side, the plastic is closed by a faceplate 9 with window 2 for reading the readings. To connect the plastic front panel 9 with the plastic cover 30 of the meter, a method is used to securely fasten the front panel 9 and the cover 30 in small dimensions, for which the front panel 9 has a V-shaped projection 31 which extends past the tabs 28 when the meter is closed On the opposite side, the front panel 9 and the cover 30 are fastened to the body 15 by countersunk screws 32. In the plastic cover 30, for securing the fastening tabs 28 to the outside, they are provided with a recess. The counter works as follows. When the supply voltage is applied to the coil 1, the measles 19 is attracted to portions of the magnetic pole sections 10 and 11, while the driving dog 22 rises up by the size of a single tooth, and the asporn dog 26 keeps the ratchet from turning. When unloading coil 1, the measles 19 is pulled away by the spring 24 to its original position until it touches the stop 23, while the driving dog turns the ratchet one step and the digital wheel is of the lowest order - one digit. When the 10th pulse is counted, a special groove on the lower-order wheel coincides with one of the grooves on the standing wheel, and with the help of a long gear wheel next to it, the standing disk is transferred to the next position. Thus, from the influence of each input electric pulse, the lowest-order digital wheel rotates one division, the second wheel shows tens, the third — hundreds, and the fourth — thousands. The proposed electromechanical meter is small in size and weight, reliable in operation, simple to manufacture, can be used in conditions of external mechanical and climatic influences and in equipment of splashproof performance, requires low power supply, which is necessary for equipment critical to weight and size. {eisticam. Claims of the invention: An electromechanical counter containing a faceplate mounted on the board, a coil located parallel to the axis of digital disks, magnetic poles attached to opposite opposite ends of the coil, measles, made in the form of a two-arm lever, balanced relative to the axis of rotation, characterized by 717; With the Whole size reduction, one arm of the lever is trapezoidal and through a ratchet connected to the axis of the digital bottom, the other lever arm is made V-shaped and is located in the area of the pole sections of the coil, which are perpendicular to the front panel plane, and the front panel is made with cap protrusions Sources of information taken into account during the examination 1. UK Patent No. 1168532, cl. G 06 M 3/06, 1970. 2, US Patent No. 3551648, cl. G 06 M 1/02, 1970 (prototype). g PG 15 15 16 50 AND Fig- /