SU1290385A1 - Device for checking operation of counting mechanisms - Google Patents

Abstract

The invention relates to the metrological assurance of measuring the speed and can be used to monitor the operation, the calibration of the mechanical revolution counters of various systems, as well as taximeters. The device provides high accuracy and performance of the calibration process of counting mechanisms. The device contains an electric drive, a coupling, a two-stage spur gear, a distribution gear, a photoelectric converter, the output of which is connected to the inputs of a reference counter. In addition, the device contains a base with an adjustable area for the installation of rotatable meters. The base is located on the casing of the distribution gearbox opposite its output shafts. The distribution gearbox is made of bevel gears and a pair of mating cylindrical gears, the output shaft of which is equipped with a slotted disc. The photoelectric converter is located in the zone of movement of the disc slots. 1 il. | (L to with about 00 00 SP

Description

The invention relates to the metrological assurance of speed measurement and can be used in devices for checking mechanical revolution counters of various systems, as well as taxometers.

The purpose of the invention is to improve the accuracy and performance of the device.

The drawing shows a kinematic diagram of the device.

The device contains an electric drive 1, a coupling 2, a two-stage spur gearbox 3, a distribution gear 4 with an input shaft 5, an output shaft 6 pairs of mating cylindrical gears, a slotted disk 7, a photoelectric converter 8, a reference counter 9, a tachometer 10. As a drive A direct current electric motor with 1 speed control was used. The two-stage spur gearbox 3 has a shift lever 11, slidable on the veneer key coupling 12 and four cylindrical gears, and the movement from the electric drive 1 to the shaft 5. The switching lever 1 1 provides the transfer of movement from the electric drive 1 to the shaft 5 in the range 1-4; 1 -10. The distribution gearbox 4 has a housing configured to turn around the vertical axis, the first bevel gear 13 fixedly mounted on the shaft 5, and the second bevel gears 14 having output shaft 15 that is radially located relative to the drive shaft. The housing 16 of the gearbox 4 has a base 16 with an adjustable area for the deceleration of the rotary counting mechanisms, the shafts of which are connected to the output shafts 15 by means of flexible couplings 17.

A disk with slots evenly spaced around the circumference is fixed on shaft 6 and connected kinematically through a pair of mating cylindrical gears 18 and 19 to shaft 5 and optically with a photoelectric converter 8, and photoelectric converter 8 is electrically connected to a tachometer 10 and a reference counter 9.

The device works as follows; The rotatable counting mechanisms are sequentially mounted on the base of a cell 16 located on the housing of the gearbox 4, when the housing is rotated around the vertical axis by one step. The shafts of the meters are connected to the shafts 15 by means of flexible couplings 17. The electric actuator 1 and the switching lever 1 1 set the required value of the frequency of rotation of the shafts 15, which through the couplings 17 cause the shafts of the mechanisms to be turned.

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A slotted disk 7 fixed on the shaft 6 is kinematically connected through the shafts 13, 14, 18 and 19 to the shafts 15 and at its rotation modulates the luminous flux passing from the emitter to the photoreceiver of the photoelectric converter 8, sucking from an amplifier, an unbalanced trigger and a differentiating node, the output of which forms a sequence of iiOCTb electric pulses, the frequency of which is proportional to the frequency of turn, of the output shafts 15.

The electrical pulses of the output of the photoelectric converter 8 are fed to the input of the tachometer 10, as which is applied a microammeter, which is monitored to determine the frequency of the rotation of the output shafts 15, and to the counter 3, as which the electronic and, and the counter, One turn of the output shafts 15 of the photoelectric G1 reamer 8 generates ten countable CPIs, due to the reduction ratio between the output shafts 15 and the shaft 6 of the disk and the number of slots on the disk.

Claims (1)

Invention Formula A device for controlling the operation of counting mechanisms, comprising an electric drive, the output shaft of which is coupled to the input shaft of a two-stage cylindrical gearbox, the output shaft of which is connected to the input shaft of a distribution gearbox, which is made of a pair of adjacent cylindrical gears, whose axes are movably fixed in the housing, selectively; 0;) the sensor, a reference counter, characterized in that, in order to improve the accuracy of the device's performance, a tacho meter is entered into the iiero; eoboazovatel base and a controlled area, provided with a conical gear distribution ujec- Turp mi. the first of which was rigidly strengthened by the input shaft m of the gearbox: and the second; og: idle gears are coupled with lepBofi of conical 1-pinion and fixedly fixed on the output legs, which are movably fixed to the horizontal; - - 1 () th plane along the perimeter of the housing distributor} south of the gearbox, on the B1.1 drive shaft with matching l; m; i.d. indicheskie niecTeren of the distribution gearbox raz displaced; incK with 1 | 00 cuts, in the zone of movement which ixix is installed1: blind photoelectrically ii) eo6pa-zontel, whose outputs are connected to; ; 1 ehalonpog on the counter and tachogenerator, Oi iiOBtinne with adjustable space and area) you fortified on the side of the housing passp. l 101H) reduct ();)} iaprotiv and c-ix) The output W) 1x shafts. -ch u irzi (v: Pni 3 3