SU988699A2 - Apparatus for removing spills from under conveyer - Google Patents

Description

(54) DEVICE FOR CLEANING THE FLOW UNDER CONVEYOR

one

The device relates to conveyor engineering, in particular to devices for cleaning arosyp under the conveyor, and can be used at crushing, concentration, sintering plants for mechanizing and automating the cleaning of spillage of transported cargo under belt conveyors.

According to the main author. St. No. 939361, a device for cleaning spills under the conveyor is known, which includes a belt loop stored on a deflecting roller and connected with a double-drum winch with a variable clamp with an axial bearing axle that is attached to various upper and lower wheels. tape branches guides 1.

The disadvantages of this device are the occurrence of dynamic loads on the elements of the deflection of its roller and running rollers when rounding the deflecting roller with a loop, as well as abrasion of the inner branch of the tape when the upper branch interacts with the opposite rollers of the lower branch accompanying additional expense

energy when operating the device. This embodiment reduces the reliability of the device.

The purpose of the invention is to increase the reliability of the device and reduce its energy intensity.

This goal is achieved by the fact that in the spill cleaning device under the conveyor, which includes a tape loop covering the deflecting roller, connected by a rope to a winch, and supporting roller rollers located on the supporting surface, the supporting surface is designed as an outer bottom guide for running rollers of the upper part of the tape loop and the inner upper guide 15 for the running rollers of the lower part of the loop of the tape, while in the area of the deflecting roller the guides have diverging intersecting free end parts, and running rollers are provided with internal bushings installed with the possibility of axial displacement.

By the way, the running rollers can be equipped with cylindrical swivel clips fixed along the edges of the belt with a gap relative to it by means of krones.

mattes with locking elements, while the outer surface is deflected, its roller is made elastic.

In addition, the outer surface of the deflection of its roller is made of located along its longitudinal axis and at a distance of one relative to the other, each of which is installed by means of; 5) opposite one another of flat springs.

Otk; 1O 1 roller can also be inflatable.

FIG. 1 shows a device for cleaning spills under the conveyor, side view; in fig. 2 - the same, top view; in fig. 3 - installation unit for running rollers of the upper and lower branches of the tape loop; in fig. 4 shows a section A -A in FIG. 3; in fig. 5 - installation unit of running rollers with clips; 6 - deflection of a 1st rabbit; in fig. 7 - section B B in FIG. 6

The spill cleaning device under the conveyor consists of a length of flexible loop of belt 1 located along conveyor 2 with overlapping in plan of head 3 and tail 4 drums of conveyor. The tape 1 in the head part of the conveyor 2 is stockpiled on the deflecting roller 5, installed with the possibility of free rotation in the discharge funnel, 6 of the conveyor 2 under the head / drum 3 with the formation of a vertically closed loop 7 in the installation zone of the roller 5. Through the entire length of the tape 1, the running rollers 8, spaced f. The distance P between the rollers 8 is variable and non-multiple each other. The running rollers 8 rest on the upper branch on the guides 9, and on the lower branch - on the guides 10. The guide surfaces for the running rollers 8 on the lower branch of the belt 1 can serve as the bearing surface of the conveyor, and for the running rollers 8 on the upper branch of the belt 1- corners 9. Moreover, the collar for the rollers of the upper branch of the belt has already been adopted for the rollers 8 of the lower branch of the belt. In addition, the inner groove formed by the guides 9 is set above the outer gauge formed by the guides 10 for the running rollers 8 of the lower branch of the belt 1. In the zone of the deflecting (unloading) roller 5, the guides 9 forming the inner gauge are provided with curvilinear sections. 1i, bent upwards and outwards, and guides 10 forming an outer track, also provided with curved sections, bent downwards and inwards of the track. Thus, the free ends of the guides 9 and 10 intersect, intersecting at different levels, allowing the running rollers 8 to freely pass through them. The running rollers 8 are provided with internal sleeves 11, by means of which the rollers 8 are freely axially displaceable. (semi x) 12,

attached to the tape 1. The ends of the tape 1 are attached to the traction ropes 13 and 14, the free ends of which are attached respectively to the drums 15 and 6 of the winch 17, which can be used as a standard double-drum scraper winch. Traction ropes 13 and 14, depending on the placement conditions of the device, envelop the system of diverting units 18 or go directly to the drums 16 and 15 of the winch 17. In the zone of formation

vertically closed loop 7, the tape 1 (depending on the specific conditions of the device attachment) can bend around the diverting unit 19. Under the roller 5, there is a cleaner 21 connected to the roller I and the kinematic connection 20 connected to the roller 5. Axis 12 running rollers 8 (Fig. 5) with locking devices 22 (for example, viits) is fixed in brackets 23, on which tape 1 is fixed with screws 24 with its lateral edges 25. On axis 12, rollers 8 are rotatably mounted cylindrical clips 26, placed between do the axle brackets 23 12. The undercarriage parameters of the device must satisfy the following

condition: 0.5 (d + dg) .. diameters, respectively, of the running rollers 8, their sleeves 11 and the sleeves 26, and D - the excess of the inner guide 9 of the rollers 8 of the rollers 8 over the outer guide 10.

The deflecting roller 5 (Fig. 2. .6 and 7) is fitted with an elastic (pliable) shell, which is formed oriented along its forming and installed with the gaps 27 between them by strips 28, spring-loaded flat concave towards each other 29 to the hub 30 of the roller 5. The fastening of the flat springs to the bar 28 and the hub 30 is carried out with screws 31. The shell of the deflecting roller 5

can be made of elastic material, e.g. rubber, and in working condition filled with compressed air.

The device works as follows.

The spill that forms along the path of the belt conveyor 2 accumulates on the belt 1. As the belt 1 is filled with the level sensor signals (not shown), the winch 17 and its drum 15 turn on. At the same time, the cable 13 starts to wind on the drum 15, providing moving the belt 1, which, by scrolling the roller 5, is discharged from the spill into the discharge funnel 6 of the conveyor 2. Then the spillage is combined with the total flow of the cargo being transported off the conveyor 2. The process of releasing the tape 1 from spilling ends, when the tape 1 takes a position where the free end of its upper branch is in the zone of the deflection roller 5, and the free end of the lower branch of the belt 1 is in the zone of deflecting blocks 18, i.e. the ends of the tape swap places. At this moment, a final switch (not shown) ensures that drum 15 is turned off and drum 16 of winch 17 is turned on. In this case, traction cable 14 begins to be wound on drum 16, allowing the belt 1 to move, which, turning the roller 5 in the opposite direction, returns to initial position (Fig. 1). When the belt 1 moves both in the direction of discharge from its spillage and in the opposite direction, its upper and lower branches are supported on the bearing surface 10 of the conveyor through the rollers 8. In this case, the rollers 8 of the upper branch of the belt 1 always move (both in the working and and in the idle directions) along the guides 9 of the inner gauge, and the rollers 8 of the lower branch of the belt 1. are always moved (also in both directions) along the guides 10 of the outer gauge. This is achieved due to the fact that, in the area of the roller 5, the rollers 8 of the upper branch of the belt 1, the descent from the guides 9 and the curvature together with the tape 1 roller, fall on the free ends of the guides bent inward. Take off the interaction, the rollers 8 p. Are moved 12 m outwards and are transferred to the guides 10 of the outer track. During the return run of the belt 1, the rollers 8, after bending around the roller 5, with the free ends of the guides 9 are shifted along axis 12 inward (towards the belt 1) and fall onto the guides 9 of the inner track. A safe turn-up of the counter rollers 8 of the upper branch and of the rollers 8 of the lower branch of the belt 1 is achieved due to the fact that the rollers 8 move in different levels along their own guides 9 and 10, ensuring that the axes 12 of the upper rollers 8 of the upper branch are exceeded by an amount A (Fig. 3 and 4) over the axes 12 of the rollers 8 of the lower branch of the belt 1. Therefore, when the rollers 8 meet, due to the moment of tension of the belt 1 and the same direction of rotation of the rollers 8 in the contact zone, the roller 8 rolls through roller 11 of roller 8. Thanks unequal step E between the roller M i, which is taken to be E Р Ro ± ± n (d + du), where Ij is the minimum (maximum step; n are integers: 0.1.2 g; z is the number of pairs of roller 8 on the team tape 1; d, dB are the diameters of the rollers 8 (figs. 3 and 4) and the sleeves II, respectively, and the meeting of one pair of rollers 8 occurs at the same time, which has virtually no effect on the load and other device parameters. as shown by calculations, as a minimum of 1.5 times the load on the belt 1, the traction ropes 13 and 14, the installed engine power of two bars allows The winch 17, as well as several times increase the service life of the belt 1. The movement of both branches of the belt 1 on the running rollers 8 ensures reliable centering of the belt 1. The working surface of the belt 1 is cleaned by a rotary cleaner 21, kinematically, by means of a gear 20 connected roller 5. The system of deflecting units 18 allows you to install the drive two-drum winch 17 in any convenient place in each particular case. When running rollers 8 with cylindrical swivel collars 26 on axles 12 (Fig. 5), the upper part of the belt 1 is supported by its sagging in the span between brackets 23 (across the width of the belt) on the collars 26, which during their stay on the upper branch do not rotate on axis 12. At the same time, the upper branch interacts with the lower branch of the tape 1 moving in the opposite direction, through rotating 12 axles 26, i.e., with a coefficient of friction rolling (approximately 10 times less than the coefficient of friction) slip). The absence of contact of the rotating sleeves 26 with the lower branch of the tape 1 is ensured by the gap between the tape 1 and the sleeves 26 and the natural sagging of the lower branch of the tape 1 (across its width) under the force of gravity. Thus, the running part of the device is mounted on fixed axles 12, fixed on the belt by means of brackets 23, a combination of rollers 8 with a yoke 26 mounted on axis 12 and rotating in opposite directions when the belt 1 passes to its lower branch. On the upper branch of the yoke 26, they function as a fixed support for the tape 1 along its width. This design allows several times to reduce the resistance to movement of the tape and its abrasion when the branches interact with each other. The interaction of the clips 26 located on the upper branch and the clips 26 on the lower branch of the tape 1 is eliminated due to the accepted ratio of the parameters of the moves of the part (Fig. 3). The presence of locking devices 22, fixing the brackets 23 in a certain position on the axes 12 of the rollers 8, allows, on the one hand, fixing the tape 1 relative to the clips 26 with the necessary clearance on the lower branch of the tape 1, and on the other hand, provides for the repair, associated with the replacement of worn-out running gear elements: sleeves 26 and axles 12. The shock-free passage of the axles 12 of the running rollers 8 with the sleeves 26 through the deflecting roller 5 (FIGS. 1, 6 and 7) is ensured by the fact that the deflector roller shell 5 made pliable and consisting of spring-loaded transverse plates 29 by springs 29. When the casing 26 runs over the deflecting roller 5, which in the zone of contact with this roller 28, the plate 28 sinks into the roller 5 due to the deformation of the pair of flat springs 29 (Fig. 6 and 7). If, at the moment of contact with the yoke 26, two adjacent plates 28 (Fig. 6) or one plate 28 eccentrically positioned relative to the yoke 26 are in the contact zone, the flat springs 29 are subjected to complex deformation, and the plate 28 are at an angle to the circumference of the roller 5. In any In this case, the sleeve 26 is embedded inside the roller 5, and the tape 1 contacts with its surface without local bending and in the absence of additional dynamic loads on the elements of the device. The presence of the gap 27 between the bars 28 eliminates the possibility of jamming the bars 28 when they are in contact with the ferrules 26.

Orientation of flat springs 29 with a bend towards each other allows access to the fastening bolts 31 both from the side plates 28 of the shell and from the side of the hub 30 of the roller 5. When the cage 26 comes off the deflecting roller 5 interacting with it (one or two ) strip 28 under the action of the springs 29 occupy their original position. The nature of the interaction of the clips 26 with the roller 5 is the same for both working and idle strokes of the tape 1.

The impactless engagement of the clips 26 with the shell of the roller 5 is also achieved when the shell is made inflatable. In this case, when the next cage 26 runs onto the roller 5, its shell is deformed, sagging in the direction of the axis in the contact zone with the cage 26. Supporting the tape 1 on the running rollers 8, provided with casing 26 freely mounted on Them, and bending around the deflecting roller 1 With elastic shell 28, the load on tape 1, traction ropes 13 and 14 are additionally reduced by two, the installed engine power of the double drum winch 17, and also increase the service life of tape 1 and increase the reliability of the device. ,, l,, „„ „/ .. ./ // y // r // sy / l-y 7xv / xyy / lv // / x 1 - /// // 7 /

The use of the proposed device for cleaning the spillage under the conveyor compared with the prototype is more reliable in operation, less energy and provides a long service life of the collection tape.

Claims (4)

1. Device for cleaning, spillage under the conveyor by bus. St. No. 939361, characterized in that, in order to increase the reliability of the device and reduce its energy intensity, the supporting surface is made in the form of an outer bottom guide for the rollers of the upper part of the loop of the tape and an inner upper guide for the rollers of the lower part of the loop of the tape, in the area of the deflecting roller}, the steering wheels have diverging free end parts, and the rollers are provided with internal sleeves that are installed with the possibility of axial displacement. 2. A device according to claim 1, characterized in that the running rollers are provided with cylinders, rotary swivels, closed with the edges of the tape with a gap relative to it by means of brackets with locking elements, and the outer surface of the deflecting roller is made elastic. 3. The device for pi. 1 and 2, characterized in that the outer surface of the deflecting roller is made up of strips located along its longitudinal axis and at a distance relative to each other. mediate.m bend x towards one flat spring. 4. Device for PG1. and 2, characterized in that the deviation of the junction 1, roller is made inflatable. Priority p and p and m and t m: 04/07/80 to see . Information sources, taken into account in the examination I. USSR Copyright Certificate No. 939361, cl. B 65 G 45/00, 14.01.80 (prototype). k / x /// U // v // s% U / LUZH; . . r е J f3 S 15 17 S // V R - / ( // / jRf / / y /.  W of FIG. y) Fig.} 10 - /// ryyXS // X 7x: y // // AY // s (yA / / f / / / / fy / // / 0 If / f / 12 / Fsh.e FIG. 7