DE1989419U - PLANE FOR A MINING BUSINESS. - Google Patents

Description

8MDNCHEN2,

St 19 797 / 5b Gbm \ Λ ; ■ ': _' ■ '■ ... ..

Ά $ 85 we S Ss This Umerioge (8esch «ib.ung« n «Schottonspt,) isl d» wW.ti. Submitted, it «eich» / on dec Non iossung "of the originally submitted documents ob the deviation is not checked. The originally submitted sublogos are located. "They are in the official files. You can at any time without charge of a reclining interest free of charge". On request, photocopies of this will also be delivered to Odor PIIms xv in the official prices ". Oeutsches ieteniomt, (SebrauchsmusiersteHe.

S TAMIGARBOI IY, HBEEUiI (the Netherlands) _: .-; _

Planes for a zeolite factory

The innovation affects one at a conveyor; Mn and "■■ going planes for a colliery operation ^ where the won .. good is loaded onto the conveyor only in one direction and the planer is driven by automatically acting means in the opposite direction to that of the conveyor with a greater zero speed than in the conveyor '.. mitgehenden direction ■ _-;:.: "Γ.

With such a device it has see; proved to be useful to start the conveyor at a constant speed «■■ ^: ..: .-. drift, which is always larger than that of the plane. The planing speed when driving uphill has been selected so high that the conveyor is maximally loaded over the largest possible longwall section. It cannot be avoided that coal falls into the planing alley -, the heap in Höbe 1-gasse will also increase.

appearance under the influence of gravity even stronger :: valid * Ten to twenty meters from the longwall corridor, such an amount of coal has accumulated in Hobelgasse that the Conveyor is too heavily loaded when the plane is driven over loads these coals into the conveyor · A practical workaround is to briefly interrupt the planing operation or to use this planer a few times moved back and forth a short distance. But this means one additional energy and time expenditure and there must always be one Be a supervisor "

This disadvantage is increased according to the combustion by one a conveyor see floating planer for a mining company fixed, with the extracted goods on the only in a sighting effective conveyor is loaded, wherein the planer is characterized by a measuring device for location determination of the plane, which is activated by means of a switch, the position of which is determined by the direction of movement of the plane, and a vision device, with speed regulating Organs of the planer is coupled.

This enables the lifting speed automatically strong during the last descent of the! is decreased. By this measure, the promotion of the plow, which is caused by the accumulation of coal in the plow alley

had risen too-much, back to the normal per unit of time normal amount returned. The apparent loss of time means in practice a gain in time because it is now a continuous one Planing is possible without any supervision.

According to a preferred embodiment, the plane comprises a measuring device for its location and a switch: for the Höbelriehtung, as well as one of the measuring device and the Sehalter jointly operated relay positionY whose output the Planing speed controls *

A simple relay circuit is obtained, in case it contains two relays, which are a switching element operated with three positions, which is able to determine the speed of the planer "

This three-stage switching element is preferably with a Point connected on a lever, each extreme position of this lever is determined by one of the two relays.

An interesting embodiment of the measuring device is obtained if the latter consists of a tachometer, which is coupled to the drive of the planer, and the speed is converted into an electrical voltage, which when correct The position of the switch is decisive for the response to one of the called relay.

The innovation is explained using the drawing in an embodiment is shown. Bs show: Pig. 1 A plane underlay with a Switching system for determining the location of the planer, a programming circuit and a

Regulation of a hydrostatic drive? fig. 2 lin conveying and removal diagram.

In -]? Ig. 1 becomes a planer 1 by two hydrostatic Motors 4 pulled back and forth on joint 2 and front 3. The conveyor 3 is powered by two electric motors 5 with one from the head constant speed up to the foot of the longwall face (arrow 6) driven. ; '.' ■ - ". '

fig · 2 shows two volume / time diagrams. H is the time between the start t ° of the plane at the foot of the face and the arrival t ^! at the head of the longwall face * with -P denotes the planing conveyance and with A the flow rate deposited by the conveyor at the foot of the longwall face. The planing speed is lower when driving in the saI area than when driving uphill and the delivery rate is correspondingly lower. As you can see, the amount of coal delivered by the conveyor remains at the same level for a time (t * - t ") until the coals loosened at the head have reached the base of the face. "If the distance is approached to a certain set distance, the G-speed is reduced even further.

As a result, in the P diagram, the delivery does not increase according to the dashed, but according to the drawn line. The conveyor is now able to process the coals because the removal curve follows the line drawn in the Α diagram. Without the measure according to the innovation, the removal would have run along the coal according to the dashed line have to, because - the capacity of the conveyor is not sufficient for this, the excess coals were at the foot of the longwall pile above and next to the conveyor and even block the passage completely. The descent of the planer is ended at the moment t "".

With a chain sprocket 7 bum drive of the plane, several magnets 8 rotate with it, which excite a so-called "tongue" contact 9 that is permanently set up. This contact and the magnets together form a tachometer 12. If the starting position of the planer is assumed, for example at the foot of the face, and the number of revolutions of the chain sprocket is measured during the planing run, the planer can be determined. The signals of the tongue contact are sent via an electronic switch 10 to a stepping motor 11 which, depending on the direction of lift, makes a step to the left or to the right with each pulse. In connection with this, the switch K ₁ is automatically turned over during the uphill travel of the planer by controlling the relevant drive motor 4. The stepping motor 11 is coupled to a potentiometer 13.

A certain value of the belongs to each state of the engine 11 Potentiometer resistance. The size of this resistance can can be read on the milliammeter 14.

At the beginning of the planing operation, the planer is in the starting position, e.g. at the butt of the face, and the potentiometer 13 in the zero position with the aid of a push button 15 This is because actuation of this push button is brought about An alternating voltage is applied to the input of the stepping motor, whereby this is caused by the frequency Speed (e.g. 50 steps 3e second) to the zero position turns. ■ - .. λ

Is below a certain display value of the measuring device 14 a relay E ^ energized, whereby in de * r programming circuit a Contact K * is closed. Bin Sehalter Ko will be automatic when the switch K. is thrown · ν

When the planer travels uphill, switch K _{2 is} thrown and a work coil 7g is excited.

When the plane is going downhill, the switch K _{2 is} in the position shown. The contact K * initially remains open, so that neither of the two work _{coils Y 1} , Yp is excited. If: the plane has reached a certain point, which can be adjusted with the aid of a: potentiometer 16, then speaks

Relay E ^ on and contact &, is closed * Now the Work coil V- energized.

Cylinders 17, 18 are actuated with the aid of _{valves 23 and 24 connected to work coils Y 1 and Vg.} The piston rods of these cylinders are connected to one another by a lever 19, which in turn is coupled to a three-stage switching element. In the state drawn, the coils V- and Yg are not energized. This is probably the pail between t ^f and t ^f '· (lig, 2), i.e. during the first part of the plane's descent. The three-stage holding element 20 regulates the supply wob. Fluid to the hydraulic motors and thus the planing speed to a medium value. If the work coil Yp is excited, the three-stage switching element moves upwards, which means that the planer is driven at maximum speed (between t ° and t ^! Or while driving uphill). - - _ '

If the coil V- is excited, the three-step element moves downwards, so that the planer travels at: the lowest speed (between t · '' and t ^! ' ^F V or at the end of the

Planing valley trip. ; ■ '.' _::

With the help of switches 21 and 22, the planer can also by hand to the desired :. Speed can be set

Claims (3)

St 19 797 / 5b Gbm SOHJTZJLUSPEiJöHB 1. On a conveyor, a mowing and floating planer for a toe operation, whereby the material obtained is loaded onto the conveyor, which is only effective in one direction, characterized by a measuring device for determining the location of the Plane, which by means of a holder (K-), the status of the movement seal of the planer (1) is determined, and one. Switching device, with speed regulating organs of the planer is coupled. 2 «Planer according to claim 1, characterized in that the switching _{device comprises two work coils (V 1} Vp), / which coils are coupled to a three-stage element (20) which has one of the speed-regulating organs: ·. 3. Hotel according to claim 2, characterized in that the Three-stage element connected to a point on a lever (19) is, each extreme position of this lever from one of the both work coils is determined, 4 ·· plane according to claim 1, characterized in that the Measuring device has a tachometer (12), the input with the drive of the planer and the output with a Speed converter voltage converter is coupled, and where the output of the converter connected to said circuit device is.