SU16102A1 - Instrument for measuring the slope of the track - Google Patents

Description

The proposed device is intended for the Eusement of the slope and the recording of the profile of both the rail and any other route in the longitudinal and transverse directions, and is based on the principle of the Whitston architecture. The shifts in the resistance values of the Whitston bridge are determined by the position of the tilting device, which is measured by the corresponding slope of the track.

The device of the image on the schematic of the circuit drawing of the instrument for measuring the track length is as follows. On the wheels Ki and Kg there is a platform on which four resistances are mounted, the two of them, EI and EZ, represent constant resistances and are equal in magnitude to each other, and the other two, Eg and E. represent two sections of the same the same resistance, having the form of a furnace of wire drawn on the L scale located below the scale L in the form of an arc AB of a circle, and its length is selected depending on the limit slopes for which the device is intended to be measured.

The relative magnitude of the resistances -Rg and is established by the contact K, which is reinforced at the end of the joint with the Pim metal seal M, suspended

at point P, isolate from the rest of the unit's trolley. With the help of the PC wire, the axis of the teller is connected to one clamp of the current recording index (galvanometer) G, the other clamp of which is connected to the H point with a wire Bn, i.e. to the wire connecting both resistances EZ. Thus, the pointer Cr through the contact, K and the tick M is included in one diagonal of the Witston quadrangle of resistances. In another diagonal of the quadrangle, it is connected with the help of QB and NA wires to the battery or battery of electrolytic cells or galvanic cells E .;

The strength of the current passing through the recording current indicator (g depends on the position of the contact K aa of the resistor). If the resistances EI and -Y2 are equal to each other, then, as is known, the current in the current indicator (t will not be only if the resistance of the area of the AO Reochord is equal to the resistance of the ON section, i.e., when contact K is in the middle of the reichord. Such a contact position, if the platform and the device are correctly installed, corresponds to the horizontal profile of the path. If there is a slope on the way and, for example,

the KZ wheel is located above the Ki wheel, then the arc scale L will move in relation to the tandem, i.e. Contact K will change its position on the reichord (move to the left). In this case, the resistance E will become less than the resistance R, as a result of which a current flows to the stump of the ironing current indicator G, the greater the greater the equality of the resistances RZ and E, i.e. the greater the slope of the path. Thus, the instrument readings will be proportional to the slope of the path.

If the slope of the path has a reverse sign, i.e. The Ko.ieco i platform is located above the K-2 wheel, then the K contact moves on the L scale to the right, and the resistance Lz will be greater than the resistance E. Current flowing through the current indicator G. will have a reverse sign in this case. i.e. pointer tdka will mark not only the magnitude of the slope, but his sign. Thus, when moving along a leveling path on the tape for w), its current indicator G. will automatically register the path profile.

With a correctly assembled platform k with a zero path profile, contact K must be located in the middle of the AB rail and, in this case, for the absence of current in the current indicator G, the resistance of the TI EI and EZ is equal. To adjust the device and quickly compensate for possible irregularities (the mismatch of contact K with the midpoint of the reichord AB with a horizontal profile) is a movable contact 7, with help, and which you can slightly increase or decrease the resistance EZ and these chickpeas even with the same length of AO and OB lead to bullet current in current G

The current, the passage of P1; its indicator G, in addition to the ratio of resistance EI, EZ, and 4, also depends on the battery voltage E, as a result of which the voltage must be controlled. For this purpose, additional clamps Ci and DI are provided in the current indicator G. Before the start

leveling, the voltage of the battery E is turned on with the help of these clips on the current indicator G and there is a deviation of the spr, the arrow, which, during the normal voltage of the battery, must stand on the control mark on the scale. As for the position of the zero point of the current indicator G, it does not depend on the battery voltage. The latter affects only the value of the deviation of the pointer from the indicator of the current G at a given deviation of the model, which is why the battery voltage monitoring is necessary.

The scale of L. on which the reohord is ukreshten has a division in degrees, with the help of which it is possible, in the event that a profile record is not required, by direct reading to determine the slope of the terrain; In this case, the device turns into an ordinary tamper level.

In order to weaken arbitrarily and unwanted swings of the tambourine in Zhamax.11, both when moving from one profile to another, and as a result of accidental loads of the platform shea of the device itself, the latter is equipped with an appropriate device to calm such swings. The W arm moves between two guide bars X X, allowing it to move only in the direction in which it is leveled, and prevent it from laterally swinging. In addition, an electro-magnetic brake Z is located on one of these guide bars, representing an iron-core coil powered by battery E. As the yatnik moves past the coil core, Foucault currents induce movement and disturb the frequency of rocking If such a device is used, the body of the tambourine must be made of a non-magnetic metal, in order to avoid distortion of the instrument readings, due to the mutual attraction of the magnetic mass of the magnet and the core.

The same device can be used.

for profile leveling in both longitudinal and transverse directions. For this purpose, the scale L and the T Ж with all the parts supporting them are set rotatably around the vertical axis of the OP. The connections QB and NA are in this case made up of flexible wires of sufficient length.

The subject of the patent.

1. Instrument for measuring the slope of the track, the states of a pendulum suspended in a frame mounted rotatable around a vertical axis on the platform and having an arc axis with a degree of division

a scale characterized by the fact that an arc of L is laid metal thin wire, representing variable resistances L and I, the Whitston bridge circuit, the constant resistances of which are the resistances RI and, and the W template of which is equipped with a contact K connected to included. m in the bridge recording current indicator.

2. In the application described in item 1, for calming the swing of the master made on the conductive material: a) two guide bars X X and b) Z electromagnetic brake in the form of an iron core coil.

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