DE8526566U1 - Planing device with sword plane - Google Patents

Description

PATENT ATTORNEY^ ·,;, . · · ·* *·.* .* ^

Dipl.-Ing. Buschhoff .. ..

DlPL.-ING. HENNICKE DIPL.-ING. VOLLBACH

KALSEIT-WIlHElM-ILING 24

5000 KDLN 1

I &bgr;&Lgr;?36 I COLOGNE, Cn

bill« ongtbcn VO/Ka

Arm.: Union Eisenhütte Westfalia GmbH 4670 Lünen .

Title: /Planing device with sword plane )

The invention relates to a planing system with a sword planer, the bottom sword of which grips under the conveyor and is connected to the traction strand of a planing chain, which is guided on a chain guide arranged on the offset side of the conveyor and formed by hood parts with chain channels lying one above the other, wherein the planer with its bottom sword runs on a slide rail which grips under the conveyor and forms a slideway, to which the conveyor is connected in a lifting manner with the hood parts on the offset side,

A planing system is known from DE-PS 12 05 927 in which the slide rail which grips under the conveyor and forms a slideway for the sword planer is hinged on the offset side near the lying surface to cover hoods which laterally cover the chain channels of the planer chain guide attached to the conveyor. The slideway consists of individual slide rail sections of a length which corresponds to the length of the trough sections.

A planing system is also known in which the slide rails forming the slideway for the planer have protruding brackets at their offset-side end, with which they are connected via connecting joints, which are located approximately at the level of the conveyor floor of the chain scraper conveyor, to the cover hoods closing the chain channels of the planing chain.

(Continue page 2 to page 11 of the originally submitted ^description \ _%

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The consoles can be used to control the back and boom control devices for controlling the cutting horizon of the planer (Brief news of the Coal Mining Association, May 1975)«

Furthermore, a planing system of the type according to the invention belongs to the state of the art, in which the sliding rails have legs ^that protrude on the offset side and at the same time corner the chain channels of the planing chain guide that lie one above the other towards the offset side. The milling legs of the sliding rails

j rails are therefore part of the planer chain guide, and at the same time they serve to create the joints between the conveyor and the slide rails. On the upstanding legs of the slide rails, return cylinders, Walking units with lifting cylinders can be connected to control the cutting level of the planer (DE-PS 26 21 382).

Starting from a planing system of the type mentioned at the beginning, the invention is primarily based on the task of designing this planing system in such a way that its assembly and disassembly is made easier with better accessibility of the planing chain, while it can also have such a low construction height that it can also be used in thin seams.

This object is achieved according to the invention in that the hood parts and the slide rail are connected via pin-and-slide connections that have a play in movement and can be lifted upwards in the vertical plane and are movable in the longitudinal direction of the conveyor.

The invention therefore replaces the bolt joints used to connect the slide rails and the conveyor troughs with tenon-groove joints, which are designed as simple plug-in connections so that the conveyor troughs can be pushed through the floor when the planer passes through the floor.

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sword can be lifted off the slide rails by the required amount, whereby the plug connections allow the hood parts attached to the inside of the conveyor to be lifted out of the grooves for disassembly purposes. In this way, the planing system is simplified in its overall structure and at the same time the assembly and disassembly of the hood parts and the structural units consisting of the trough sections and the hood parts is made easier. The elimination of the pin joints also makes the planing chain more accessible from the offset side. The tenon-groove connections can easily be designed in such a way that the conveyor or the hood parts only need to be lifted slightly to release the tenon engagement. The planing system can therefore have a relatively low construction height so that it can also be used in thin seams. It goes without saying that the tenon-groove connections have sufficient play for the conveyor's chute sections to be swivelled up by the bottom blade of the passing planer.

The tenon-groove connections are expediently designed so that a tenon engagement approximately perpendicular to the bank is provided, although a tenon engagement at an acute angle to the bank is also possible. The arrangement is advantageously made so that the tenon-groove connections are formed by tenons arranged on the hood parts, pointing towards the horizontal, and grooves arranged on the offset side of the slide rails, open at the top. The tenons are expediently made of ribs or the like arranged at the foot of the hood parts. According to another essential feature of the invention, latches are provided on the tenon-groove connections, which secure the tenon fine engagement. The latches prevent in particular

Lifting the tenons out of the grooves if the depth of engagement of the tenons in the grooves is kept relatively small.

Simple low-turning devices can be provided for the bolts. Preferably, the arrangement is such that the

Latches, preferably by screwing, are detachably connected to the slide rails, whereby they have locking lugs that
The locking lugs of the hood parts overlap. The slide rails
are advantageously provided with offset-side pockets for the bolts.

In addition to the lifting and swiveling movements of the conveyor, the pin-groove connections also enable longitudinal displacements
between the conveyor and the substructure formed by the slideway, which in particular allows an adaptation of the planing system to
uneven surfaces are improved.

The conveyor belts are connected to the conveyor chute sections on the side

screwed hood parts are designed so that they, \

As is known, a j covering the chain channels on the outside

leg, which at its free lower end has the

can carry the tenon that fits into the grooves at the top. With a 5

preferred embodiment of the planing system according to the invention &

the conveyor trough sections each have |

three hood parts; the one that runs over the gutter section |

sliding rail in the area of the middle hood parts with |

a towering center console, which has an articulated I

, connection for an expansion walkway and at a distance above;

^ a connection for one of the level controls of the planing system

The width of the middle console is preferably approximately equal to the width of the middle hood part, whereby the width of the hood part is preferably smaller than that of the outer hood parts. The outer hood parts arranged on both sides of the middle console and exposed on the front side can be removed without difficulty after loosening their screws, which provides good access to the planing chain. After loosening the bolt, the lower run of the conveyor can also be removed by lifting it slightly, e.g.
for inserting a planing chain insert, easily accessible

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In the aforementioned preferred embodiment of the planing system, the tenon-groove connections and the bars are expediently arranged only between the outer hood parts and the slide rail. The slide rail advantageously consists of a horizontal plate to which a strong connecting cast piece is welded on the offset side at the two ends of the channel section, which is provided with a molded groove of the tenon-groove connection and with a molded coupling element, preferably a coupling pin, for a coupling element serving the channel section connection, in particular in the form of an eyelet or the like. The strong connecting cast pieces therefore serve both the channel section connection and the tenon-groove connection. The bars mentioned are expediently attached to the slide rail using vertical screw bolts. The bars can be advantageously provided with connecting elements, preferably pivot pin openings or similar, for the connection of clamping cylinders, with the help of which the planing system is braced in the longwall. This dual function of the bars also results in structural and assembly simplifications.

The invention is explained in more detail below in connection with the embodiment shown in the drawing. The drawing shows:

Fig. 1 shows a planing system according to the invention on the longitudinal section of a single channel weld of the conveyor in a view from the offset in the direction of the excavation face;

Fig. 2 is a plan view of Fig. 1 in the direction of arrow II of Fig. 1, with the trough section of the conveyor only being shown in its offset region and with the arrangement partially shown in horizontal section;

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Fig. 3 is a front view in the direction of arrow III of Fig. 1, partly in vertical section;

Fig. 4 is a vertical section along line IV-IV of Fig. 1;

Fig. 5 is a vertical section along line V-V of Fig. 1.

The planing system shown is largely identical in its construction to the planing system according to DE-PS 36 21 382, so that I can dispense with a detailed description of the corresponding parts. The planing system consists in its essential parts of a sword planer, of which only the bottom sword 1 can be seen in Fig. 3, and a conveyor which is laid lengthways in front of the (not shown) working face and, as usual, is formed by a chain scraper conveyor, the channel line of which consists of individual channel sections 3 which are connected to one another in a bendable manner in the vertical and horizontal planes. The bottom sword 1 can consist of several hinged sword plates, as is known. It has guide blocks 4 on the offset side, which fit into a lower chain channel 5 of the planing chain guide attached to the conveyor 2 on the offset side and are guided therein. The channel sections 3 of the conveyor 2 consist, as is known, of side profiles 6 and 7, between which the conveyor beam 8 is welded. Bracken plates 9 are attached to the offset-side side profiles 6 of the channel sections 3, which are also a component of the planer chain guide 10. The latter has an upper chain channel 11 above the lower chain channel 5, in which the upper and return run of the driven planer chain is guided. The pulling run of the planer chain is connected to the guide blocks 4. The chain channels 5 and 11 lying one above the other are covered at the front by angled hood parts, which are connected to the conveyor 2 on the offset side by means of horizontal screw bolts 12.

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In each trough section 3 of the conveyor 2, three hood parts are

I closed, namely a middle hood part 13 and two

I mirror-image outer hood parts 14,

I whose width, as shown in Fig. 1, is greater than that of the

I middle hood part 13, The three hood parts 13 and 14

I together form a continuous

I Planer chain guide. Between the superimposed chain

i channels 11 and 5 of the planer chain guide 10 are sliding distance

L pieces 15 are arranged, which are also connected by means of horizontal

k Screws on the offset side profile 6 of the rirsia shots

f O 3 are connected.

\ The conveyor 2 with the attached planing chain guide 10 rests

on a substructure formed by slide rails 16,

- whose length is approximately equal to the length of the gutter sections 3 of the

\ conveyor and the one over the length of the conveyor

I form a sliding track for the sword plane. The sliding track

I nen 16 protrude from the face side profile 7

| of the channel sections 3 towards the working face and are here at

I 17 angled against the lying surface. The side profile

I 7 projecting part of the sliding rails 16 forms in known

I Heise a cutting limit for the longitudinally at the excavation face

I -. long-moving plane, which with its (not shown) ho-

''- ^ ^J belkörper runs on this part of the slideway. It is recognizable

I bar that when the planer passes through the conveyor 2 is locally lifted by the bottom blade 1 running underneath it

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The slide rails 16 have in the area of the middle hood

I part 13 has a towering center console 18, the width of which

I is approximately equal to the width of the middle hood part 13. The

] Center console 18 is as shown in Fig* 2 and 3 at a distance from the

I vertical leg of the middle hood part 13 almost at the

I slide rail 16 attached) it protrudes approximately at the height of the& ob«-

I r horizontal leg of the angled hood parts.

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The center console is provided with an articulated connection 19 for a known expansion walking mechanism 20 and, at a distance above the articulated connection 19, with a connection 21 for the attachment of a hydraulic control cylinder 22, with the aid of which the entire planing system is tilted in the plane perpendicular to the bench in order to be able to adjust the cutting horizon of the planer. Such level controls are also known. At connection 21, for example, a multi-part joint socket is connected by means of screw bolts 23 to the center console - in ^which a control unit 22 is mounted with a joint ball. The piston rod 24 of the control cylinder 21 is connected via a articulated connection 25 to a rod head 26 of the walking mechanism 20. The lower joint connection 19 for the walking mechanism 20 consists, for example, of a joint fork in which the walking mechanism is connected by means of a joint bolt 2" .

The two hood parts 14 on either side of the middle hood part 13 and the middle console 18 are connected to the offset-side ends of the slide rails 16 on each channel section 3 via tenon-groove connections 28 in a slidable and pivotable manner. As shown in particular in Fig. 4, the hood parts 14 have tenons 30 on their vertical legs 29 directed towards the lying surface, which are formed by ribs formed on the base of the hood parts 14. The tenons 30 engage in grooves 31 that are open at the top. The grooves 31 provide such a play for the tenons 30 that the channel sections 3 with the attached planer guide 10 can be lifted off the slide rails 16 and pivoted upwards when the planer passes through the bottom blade 1. After the bottom blade"1 has passed, the trough sections 3 swing back onto the sliding rails 16, whereby they rest against the sliding rails 16 with the side profiles 7 on the face side. At the same time, a certain limited longitudinal displacement of the pins 30 in the grooves 31 in the longitudinal direction of the conveyor is possible, whereby a better adaptation of the planing system to uneven, wavy surfaces is achieved.

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The aforementioned tenon-groove connections 28 are provided on each channel section 3 only at the ends of the relevant slide rail 16, i.e. in the area of the channel section connections. The slide rails 16 are made of horizontal plates or sheets into which a strong connecting cast piece 32 is welded on the offset side at each of the two channel section ends, on which the ribs forming the groove 31 are formed. Coupling elements 33 are also formed on the strong connecting cast pieces 32, which serve for the offset-side channel section connection and, as shown in Fig. 2, consist of hook-shaped coupling pins. As coupling elements for the channel weft connection, eyelets 34 (Fig. 1) designed like chain links are used, which are placed on the hook-shaped coupling pins 33 of the adjacent slide rails from the offset side and secured by means of screwed-on locking plates 35.

To secure the groove-tenon connections 28, latches 36 designed as simple hold-down devices are arranged directly to the side next to the tenon-groove connections 28. The slide rails have undercut insertion pockets 37 on the offset side, which are located to the side next to the center console 18 between the latter and the connecting castings 32 with the tenon-groove connections 28. In Fig. 2, one of the two insertion pockets 37 is shown without an inserted latch. The latch 36 is inserted into the insertion pocket 37 from above and held in place by a positive fit. Each latch has two lateral flanges 38 (Fig. 1), to which it is detachably connected to a welded edge strip 40 of the slide rail by means of vertical screws 39. The strong latches 36 have latch lugs 41 which, as shown in particular in Fig. 5, overlap latch projections 42 projecting on the offset side with play, so that the engagement of the pins 30 in the grooves 31 is secured without preventing the required lifting movement and the longitudinal movement of the pin-groove connections 28. The strong latch projections 42 are located on the outer hood parts 14 laterally next to the

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Latches 31. The latches 36 and the tenon-groove connections 28 are accordingly arranged on both sides of the central console 18 between the outer hood parts 14 and the slide rail 16.

In addition to their locking function, the bars can have a further puncture as a connection element for attachments. The bars 36 are preferably provided with connection elements, such as in particular pivot pin openings 43 (Fig. 5) into which pivot pins 44 (Fig. 2) can be inserted, to which hydraulic tensioning cylinders of a block bracing or the like can be connected. In this case, the clamping forces are transferred from the pivot pins 44 to the bars 36, which are designed to be sufficiently strong and are reliably secured to the slide rail in the insertion pockets 37. Instead of the bars 36 which can be used as connection brackets for tensioning cylinders, simple bars or hold-down devices can of course also be used which do not have an additional connection function for tensioning cylinders and the like.

It can be seen that the outer hood parts 14 in particular are exposed towards the offset side and can be easily removed after loosening and removing the bolts 36. The planing chain is therefore easily accessible from the offset side, as is the lower run of the conveyor. The strong connecting cast pieces 32 serve both to connect the trough sections and to connect the conveyor to the substructure via the tenon-groove connections 28. In the space between the center console 18 and the middle hood part 13, a stop piece 45 can be arranged in the upper area according to Fig. 3, which limits the tilt angle by which the trough section of the conveyor can be tilted upwards relative to the substructure forming the slideway. The stop piece 45 can, as can also be seen from Fig. 1, consist of a bridge piece which is connected to the hood part 13 in the apex area by means of screws 46. The narrow gap between the center console 18 and the hood part 13

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can be covered on the top by a flat cover 47# e.g. a rubber rag or _similar *

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Claims (13)

Protection claims: 1. Planing device with a sword planer, the bottom sword of which grips under the conveyor is connected to the traction strand of a planing chain which is guided on a chain guide arranged on the offset side of the conveyor and formed by hood parts with chain channels lying one above the other, the planer running with its bottom sword on a slide rail which grips under the conveyor and forms a slideway, to which the conveyor is connected in a lifting manner with the hood parts on the offset side, characterized in that the hood parts (14) and the slide rail (16) are connected in a lifting manner in the plane perpendicular to the bank and displaceable in the longitudinal direction of the conveyor (2) via tenon-groove connections (28) which have a play in movement and can be lifted upwards. 2. Planing device according to claim 1, characterized in that the tenon-groove connections (28) are formed by tenons (30) arranged on the hood parts (14) and pointing towards the horizontal and by grooves (31) arranged on the offset side of the slide rails (16) and open at the top. 3. Planing device according to claim 2, characterized in that the pins (30) consist of ribs arranged at the foot of the hood parts (14). "Planing device according to one of claims 1 to 3, characterized in that the tenon-groove connections (28) are assigned locks (36) securing the tenon engagement. 5. Planing device according to claim 4, characterized in that the latches (36) are detachably connected to the slide rails (16), preferably by screwing, and have latch lugs (41) which overlap latch projections (42) of the hood parts (14). 6. Planing device according to claim 4 or 5, characterized in that the slide rails (16) have insertion pockets (37) for the bolts (36) on the offset side. 7. Planing device according to one of claims 1 to 6, characterized in that the hood parts (14) have a leg covering the chain channels (5, 11) on the outside, which leg carries at its free lower end the pins (30) which engage from above in the grooves (31). 8. Planing device according to one of claims 1 to 7, characterized in that the channel sections (3) of the conveyor (2) each have three hood parts (13, 14) on the offset side, while the sliding rail (16) extending over the channel section (3) has an upstanding central console (18) in the region of the central hood part (13) which is provided with an articulated connection (19) for a support walking mechanism and/or with a connection (21) for a control cylinder (22) serving to control the level of the planing system. 9. Planing device according to claim 8, characterized in that the width of the central console (18) is approximately equal to the width of the central hood part (13), the width of which is preferably smaller than that of the outer hood parts (14). I I. - 14*- 10. Planing device according to claim 8 or 9, characterized in that the tenon-groove connections (28) and the latches (36) are arranged between the outer hood parts (14) and the slide rail (16). 11. Planing device according to one of claims 1 to 10, characterized in that the slide rail (16) consists of a horizontal plate to which a connecting cast piece (32) is connected by welding on the offset side at each of the two channel section ends, which is provided with a molded groove (31) of the tenon-groove connection (28) and with a molded coupling element (33), preferably a hook-shaped coupling pin or the like, for a coupling element (34) serving for the channel section connection, preferably in the form of an eyelet. 12. Planing device according to one of claims 4 to 11, characterized in that the bars (36) are fastened to the slide rail (16) by means of vertical screw bolts (39). 13. Planing device according to one of claims 4 to 12, characterized in that the latches (36) are provided with connecting elements (43), preferably pivot pin openings, for the connection of attachments, in particular clamping cylinders.