PL104524B1

PL104524B1 - RUNNESS FEED MECHANISM, ESPECIALLY FOR MINING MACHINES

Info

Publication number: PL104524B1
Application number: PL18775976A
Authority: PL
Priority date: 1976-03-05
Filing date: 1976-03-05
Publication date: 1979-08-31

Description

Przedmiotem wynalazku jest bezciegnowy mechanizm posuwu zwlaszcza do maszyn górniczych takich jak maszyny urabiajace i ladujace.The subject of the invention is a chainless feed mechanism, especially for mining machines such as mining and loading machines.

Znane dotychczas konstrukcje bezciegnowych mechanizmów posuwu wyposazone sa w kola lub lancuchy napedowe zazebiajace sie z zebatka sztywno umocowana do rynien przenosnika. Segmenty zebatki posiadaja sworznie, zeby lub gniazda o róznych ksztaltach, a kola lub lancuchy napedowe sa umiejscowione zwykle w tych mechanizmach w poblizu plozy maszyny urabiajacej i ladujacej.The hitherto known designs of the thrustless feed mechanisms are equipped with wheels or chains gears interlocking with the gear rigidly attached to the conveyor chutes. Gear segments have pins, teeth or sockets of various shapes and the wheels or drive chains are usually located in these mechanisms near the skid of the cutting and loading machine.

Sztywne umocowanie segmentów zebatek do rynien przenosnika jest przyczyna przyjmowania przez kolo napedowe mechanizmu posuwu, na pokonywanych krzywiznach trasy przenosnika, róznych polozen wzgledem zebatki. W zaleznosci od rodzaju krzywizny kolo napedowe moze sie przemiescic wzgledem zebatki w plasz¬ czyznie pionowej i poziomej i zajmuje zawsze polozenie ukosne wzgledem osi zebatki. Umieszczenie kola na¬ pedowego w poblizu plozy pozwala tylko zmniejszyc wielkosc tych przemieszczen w plaszczyznach poziomej i pionowej, a nie zmniejsza ono ukosnego ustawienia sie kola wzgledem osi zebatki. W rezultacie wykrzywienia trasy przenosnika, powstaja znaczne zmiany wielkosci podzialki na stykach segmentów zebatki. Wzrost wartosci podzialki powstajacy w wyniku wykrzywienia rynien w plaszczyznie poziomej o maksymalny kat 3° wynosi na przyklad przy znanych konstrukcjach zebatek okolo 4 cm. Biorac pod uwage powyzsze w znanych mecha¬ nizmach posuwu ze sztywnym umocowaniem segmentów zebatki poprawna wspólpraca kola napedowego z zebatka wystepuje praktycznie tylko na trasie przenosnika pozbawionej wykrzywien. Juz przy niewielkim zakrzywieniu rzedu 1—1,5° wystepuja powazne zaburzenia wspólpracy w wyniku powstalych zmian polozen kola wzgledem zebatki i zmian wartosci podzialki na stykach rynien przenosnika. Przy wiekszych zakrzywie¬ niach rzedu 2—3° prawidlowa praca napedu w wielu wypadkach jest wrecz niemozliwa i w wyniku zablokowania i zakleszczania sie zebów kola napedowego na zebatce powstaja powazne uszkodzenia mechanizmów.The rigid attachment of the gear segments to the conveyor gutters is the reason for the wheel being adopted drives of the feed mechanism, on the curved curves of the conveyor route, different positions in relation to gears. Depending on the type of curvature, the drive wheel may move relative to the rack in the plane. vertical and horizontal and always occupies an oblique position to the axis of the sprocket. Putting the wheel on¬ near the slope allows only to reduce the size of these displacements in the horizontal planes and vertical, and it does not reduce the oblique position of the wheel in relation to the axis of the sprocket. As a result, distortions conveyor route, there are significant changes in the size of the scale at the contacts of the sprocket segments. Increase in value the scale resulting from the curvature of the gutters in the horizontal plane by a maximum angle of 3 ° is example with known designs of gears about 4 cm. Given the above in known mecha¬ feed with rigid fastening of the gear segments, correct cooperation of the drive wheel with the pinion, it occurs practically only on the conveyor route without any distortions. Already with little the curvature of the row 1–1.5 ° there are serious disturbances in cooperation as a result of changes in positions wheel with respect to the sprocket and changes in the scale value on the conveyor chute contacts. At larger curves in the order of 2–3 ° correct operation of the drive in many cases is even impossible and due to blockage and jamming of the drive wheel teeth on the sprocket serious damage to the mechanisms.

Istotna wada znanych bezciegnowych mechanizmów posuwu ze sztywnym umocowaniem zebatek jest bardzo waski zakres stosowania, ograniczony do warunków pracy, przy których wystepuja male zakrzywienia tras przenosnika, niska trwalosc zebatki i kola napedowego oraz duza czestotliwosc uszkodzen i awarii mecha¬ nizmów.2 104 524 Bezciegnowy mechanizm posuwu zwlaszcza do napedu maszyn górniczych wedlug wynalazku posiada zebatke, przy czym kazdy segment zebatki mocowany jest obrotowo i przesuwnie w uchwycie, który z kolei mocowany jest obrotowo i przesuwnie w stopie. Segmenty zebatki polaczone sa miedzy soba polaczeniem przesuwno-obrotowym i posiadaja wymuszone prowadzenie przez prowadniki, a kolo napedowe mechanizmu posiada os pozioma.A significant disadvantage of the known feedless feed mechanisms with rigid mounting of the gears is very narrow field of application, limited to operating conditions with slight curvatures conveyor routes, low durability of the sprocket and drive wheel as well as high frequency of damage and failure of the mech nisms. 2 104 524 According to the invention, a chainless feed mechanism, especially for driving mining machines, has a sprocket, with each sprocket segment being rotatably and slidably mounted in the holder, which in turn it is rotatably and slidably mounted in the foot. The gear segments are connected with each other by a connection sliding-rotary and have forced guidance through guides and the drive wheel of the mechanism has a horizontal wasp.

W rozwiazaniu alternatywnym kolo posiada os pionowa.Alternatively, the wheel has a vertical axis.

Stwierdzono, ze sworzen mocujacy przesuwnie i obrotowo segment zebatki do uchwytu moze byc osadzo¬ ny w osi sworznia zebatki albo w osi miedzy sworzniami zebatki albo w osi ponizej sworznia zebatki. Taka konstrukcja bezciegnowego mechanizmu wedlug wynalazku umozliwia uzyskanie w kazdych warunkach pracy mechanizmu stalego polozenia kola napedowego wzgledem zebatki niezaleznie od rodzaju i stopnia wykrzywie¬ nia trasy przenosnika, lub innego elementu, do którego mocowany jest uchwyt zebatki.It has been found that the pin fastening the tooth segment in a sliding and rotary manner to the handle can be in the axis of the gear pin or in the axis between the pins of the gear rack or in the axis below the pin of the gear rack. Such the construction of the thrustless mechanism according to the invention makes it possible to obtain it in all working conditions the mechanism of the fixed position of the drive wheel relative to the sprocket, regardless of the type and degree of distortion conveyor route or other element to which the gear holder is attached.

Osadzenie sworznia poprzez tuleje mimosrodowa w obejmie uchwytu segmentu zebatki umozliwia regu¬ lacje polozenia segmentów zebatek wzgledem siebie. Obrót dzwignia mimosrodu pozwala kompensowac róznice wartosci podzialek zebatki powstajace na skrzywionych wzgledem siebie stykach rynien przenosnika. Pozwala w szczególnosci rozlozyc znaczna róznice podzialki na stykach wykrzywionych rynien przenosnika na dwa lub wiecej segmentów zebatki to jest na takie wartosci róznic podzialek, które moga byc skutecznie pokonywane przez dane kolo napedowe. Róznica wartosci podzialek wynoszaca np. 4 cm moze byc rozlozona na dwa segmenty zebatki to jest po okolo 2 cm na kazdy, lub na 3 segmenty zebatki po okolo 1,33 cm na kazdy itd.Embedding the pin through the eccentric bushing in the bracket of the tooth segment holder allows positions of the gear segments in relation to each other. Rotating the eccentric lever compensates for the difference values of the tooth divisions arising on the contacts of the conveyor chutes bent towards each other. Allows in particular, distribute significant differences in the scale at the joints of the curved conveyor chutes into two or more segments of the sprocket, that is, for such scale difference values that can be effectively overcome via a given drive wheel. The difference in the value of the divisions of e.g. 4 cm can be divided into two gear segments, i.e. about 2 cm for each, or for 3 segments of the gear about 1.33 cm for each, etc.

Zaletami bezciegnowego mechanizmu posuwu wedlug wynalazku jest bardzo dobra wspólpraca kola na¬ pedowego z zebatka w trudnych warunkach eksploatacyjnych oraz mozliwosc pokonywania znacznych wykrzywien trasy przenosnika i to wiekszych, od tych, które umozliwiaja znane konstrukcje przenosników zgrzeblowych. Istotna zaleta jest konstrukcyjna mozliwosc usytuowania przekladni i kola napedowego maszyny w dowolnym miejscu korzystnym pod wzgledem konstrukcyjnym, eksploatacyjnym oraz efektywnego i skutecz¬ nego przeniesienia reakcji sily uciagu mechanizmu posuwu na podloze. Dalszymi zaletami jest prostota kon¬ strukcji i niezawodnosc dzialania oraz male gabaryty mechanizmu pozwalajace na jego zastosowanie w róznych warunkach górniczo-geologicznych w pelnym zakresie wysokosci wyrobisk scianowych eksploatowanych maszy¬ nami urabiajacymi i ladujacymi to jest od okolo 0,8 m wzwyz. Przedstawiony mechanizm umozliwia równiez prace maszyn urabiajacych i ladujacych przy duzych nachyleniach wyrobiska scianowego bez specjalnego urza¬ dzenia zabezpieczajacego, przez zastosowanie prostej w konstrucji blokady segmentów zebatki na prowadnicach przymocowanych do maszyny.The advantages of the chainless feed mechanism according to the invention are the very good cooperation of the wheel on the wheel pedal with a sprocket in difficult operating conditions and the ability to overcome considerable bends of the conveyor route, and larger than those possible with known conveyor designs cardboards. A significant advantage is the design possibility of positioning the gear and the drive wheel of the machine in any place that is favorable in terms of design, operation, as well as effective and efficient transfer of the tractive force of the feed mechanism to the floor. A further advantage is the simplicity of the interface structure and operational reliability as well as the small dimensions of the mechanism allowing its use in various mining and geological conditions in the full height range of the wall workings of the exploited machine with us mining and loading it, that is from about 0.8 m up. The presented mechanism also allows work of mining and loading machines at high slopes of the wall excavation without a special device by using a simple in design lock of the rack segments on the guides attached to the machine.

Przedmiot wynalazku pokazano w przykladzie wykonania na rysunku, na którym fig. 1 przedstawia widok z przodu mechanizmu posuwu, fig. 2 —jego widok z boku, fig. 3 — widok z przodu uchwytu zebatki, fig. 4 — wi¬ dok z boku tego uchwytu, fig. 5 — widok uchwytu zebatki z osia sworznia mocujacego usytuowana ponizej osi sworzni zebatki, fig. 6 — widok z przodu uchwytu zebatki z osia sworznia mocujacego usytuowana miedzy osia¬ mi sworzni zebatki, a fig. 7 — widok z boku tego uchwytu.The subject of the invention is shown in an exemplary embodiment in the drawing in which Fig. 1 shows a view on the front of the feed mechanism, fig. 2 - its side view, fig. 3 - front view of the gear holder, fig. 4 - more the dock on the side of this holder, fig. 5 - view of the gear holder with the axis of the fastening pin located below the axis sprocket pins, Fig. 6 - front view of the sprocket holder with the axis of the fastening pin located between the axle gear pins and Fig. 7 is a side view of this handle.

Mechanizm posuwu wyposazony jest w kolo napedowe 1 napedzane przekladnia zespolu ciagnika 2. Kolo napedowe 1 zazebia sie z segmentami zebatki 3 skladajacej sie ze sworzni 4 i rolek 5 osadzonych w kadlubie 6 segmentu zebatki 3. Segmenty 3 zebatki przymocowane sa do rynien przenosnika zgrzeblowego 7 za pomoca uchwytów 8 osadzonych przesuwnie i obrotowo w stopie 9 przymocowanej do plyty prowadzacej 10 przytwier¬ dzonej do rynny przenosnika 7. Segmenty 3 zebatki osadzone sa przesuwnie i obrotowo na sworzniu mocujacym 11. Sworzen mocujacy 11 osadzony jest w uchwycie poprzez tuleje mimosrodowa 12. Regulacje polozenia segmentu 3 zebatki wzgledem stopy 9 uzyskuje sie przez obrót tulei mimosrodowej 12 dzwignia regulacyjna 13.The feed mechanism is equipped with a drive wheel 1, driven gear of the tractor unit 2. The wheel the driving gear 1 mesh with the segments of the gear 3 consisting of pins 4 and rollers 5 embedded in the casing 6 of the tooth segment 3. The segments 3, the sprockets are attached to the chutes of the scraper conveyor 7 with the handles 8 are slidably and rotatably mounted in the foot 9 attached to the guide plate 10 by fastening to the conveyor chute 7. Segments, 3 gears, are slidably and rotatably mounted on the fastening pin 11. The clamping pin 11 is embedded in the holder through an eccentric sleeve 12. Adjustment of position segment 3 of the sprocket in relation to the foot 9 is obtained by rotating the eccentric sleeve 12 with the adjustment lever 13.

Segmenty 3 zebatki sa polaczone miedzy soba polaczeniem przesuwno-obrotowym 14. Segmenty 3 zebatki posiadaja wymuszone prowadzenie przez prowadniki 15 przymocowane do san 16. Powierzchnie oporowe 17 prowadników 15 zapewniaja stale polozenie segmentów 3 zebatki wzgledem kola napedowego 1.The segments of the 3 sprockets are connected with each other by a sliding-rotary connection 14. Segments of the 3 sprockets they have positive guidance by guides 15 attached to the san 16. Bearing surfaces 17 of the guides 15 ensure that the rack segments 3 are in a constant position relative to the drive wheel 1.

Na figurze 3 sworzen 11 mocujacy przesuwnie i obrotowo segment 3 zebatki do uchwytu 8 jest osadzony w osi 18 sworznia zebatki 4 na fig. 6 i 7 w osi 19 usytuowanej miedzy sworzniami zebatki 4 na fig. 5 w osi 20 usytuowanej ponizej sworznia zebatki 4. Na fig. 1, 2, 3, 4, 5 kolo napedowe 1 bezciegnowego mechanizmu posuwu osadzone jest w osi poziomej 21, a na fig. 6 i 7 kolo 1 osadzone jest w osi pionowej 22.In figure 3, the pin 11 which fastens the rack segment 3 to the handle 8 slidably and rotatably is mounted along the axis 18 of the gear pin 4 in Figs. 6 and 7 along the axis 19 located between the pinions 4 in Fig. 5 along the axis 20 located below the gear pin 4. In Figs. 1, 2, 3, 4, 5 the drive wheel 1 of the the feed is embedded in the horizontal axis 21, and in Figs. 6 and 7, the wheel 1 is embedded in the vertical axis 22.

Claims

Patent claims

1. The non-threaded feed mechanism, especially for the drive of mining machines, having a gear, characterized by the fact that the gear segment (3) is rotatably and slidably mounted on the pin (11) in the holder 104524 3 (8), and the holder (8) is rotatably and slidably in the foot (9), the rack segments (3) connected between each other by means of a sliding-rotating joint (14) have forced guiding through guides (15), and the drive wheel (1) has a horizontal axis (21).

2. The thrustless feed mechanism according to claim The method of claim 1, characterized in that the pin (11) is attached eccentrically.

3. The feed-free feed mechanism according to claim The method of claim 1 or 2, characterized in that the pin (11) is mounted in the axis (18) of the pin (4) of the gear.

4. The thrustless feed mechanism according to claim The method of claim 1 or 2, characterized in that the pin (11) is mounted in the axis (19) between the pinion pins (4).

5. The feed-free feed mechanism according to claim A method as claimed in claim 1 or 2, characterized in that the pin (11) is mounted in the axis (20) below the pinion pins (4).

6. The non-threaded feed mechanism, especially for the drive of mining machines, with gears, characterized by the fact that the gear segment (3) is rotatably and slidably mounted on the pin (11) in the handle (8), and the handle (8) is rotated and slidably mounted in the foot (9), the rack segments (3) connected to each other by a sliding-rotary connection (14) have positive guidance by guides (15), and the drive wheel (1) has a vertical axis (22).

7. The thrustless feed mechanism according to claim 6. The method of claim 6, characterized in that the pin (11) is attached eccentrically.

8. The thrustless feed mechanism according to claim The method of claim 6 or 7, characterized in that the pin (11) is mounted in the axis (18) of the pin (4) of the gear.

9. The feed-free feed mechanism according to claim 6 or 7, characterized in that the pin (11) is mounted in the axis (19) between the pin (4) of the gear

10. The thrustless feed mechanism according to claim The method of claim 6 or 7, characterized in that the pin (11) is mounted in the axis (20) below the pinion pins (4). Fig.L. '/Ffg.fl. 104 524 4 8 11 12 13 4 Fin.3. Fin.4. Wash. Typographer. UP PRL, circulation 120 + 18 Price PLN 45