PL108511B1 - Advance mechanism with articulated rack,especially for mining machines - Google Patents

Advance mechanism with articulated rack,especially for mining machines Download PDF

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Publication number
PL108511B1
PL108511B1 PL19415176A PL19415176A PL108511B1 PL 108511 B1 PL108511 B1 PL 108511B1 PL 19415176 A PL19415176 A PL 19415176A PL 19415176 A PL19415176 A PL 19415176A PL 108511 B1 PL108511 B1 PL 108511B1
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PL
Poland
Prior art keywords
attached
gear
feed mechanism
joint
vertical
Prior art date
Application number
PL19415176A
Other languages
Polish (pl)
Other versions
PL194151A1 (en
Inventor
Jan Rynik
Original Assignee
Politechnika Slaska Im Wincent
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Politechnika Slaska Im Wincent filed Critical Politechnika Slaska Im Wincent
Priority to PL19415176A priority Critical patent/PL108511B1/en
Priority to DE19772709111 priority patent/DE2709111C2/en
Priority to AT141777A priority patent/AT349412B/en
Priority to GB911077A priority patent/GB1569912A/en
Publication of PL194151A1 publication Critical patent/PL194151A1/en
Publication of PL108511B1 publication Critical patent/PL108511B1/en

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Description

Przedmiotem wynalazku jest mechanizm posuwu z prze¬ gubowym umocowaniem zebatki, zwlaszcza do maszyn górniczych takich jak maszyny urabiajace i ladujace.Znane konstrukcje bezciegnowych mechanizmów po¬ suwu wyposazone sa w kola lub lancuchy napedowe za¬ zebiajace sie z zebatka sztywno umocowana do rynien przenosnika. Segmenty zebatki posiadaja sworznie, zeby lub gniazda o róznych ksztaltach, a kola lub lancuchy na¬ pedowe sa umiejscowione zwykle w tych mechanizmach w poblizu plozy maszyny urabiajacej i ladujacej. Znana jest równiez konstrukcja mechanizmu posuwu z segmentami zebatki umocowanymi przesuwnie i obrotowo do uchwytów przymocowanych do rynien przenosnika. Segmenty te posiadaja wymuszone prowadzenie w prowadniku maszyny oraz polaczone sa miedzy soba polaczeniem przesuwno- -obrotowym.W przypadku sztywnego umocowania segmentów zeba¬ tek do rynien przenosnika, kolo napedowe mechanizmu posuwu przyjmuje rózne polozenia wzgledem zebatki na pokonywanych krzywiznach trasy przenosnika. W zalez¬ nosci od rodzaju krzywizny kolo napedowe moze prze¬ miescic sie wzgledem zebatki w plaszczyznie pionowej i poziomej i zajmuje zawsze polozenie ukosne wzgledem osi zebatki. Umieszczenie kola napedowego w poblizu plozy pozwala tylko zmaiejszyc wielkosc tych przemiesz¬ czen 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. Poprawna wspólpraca kola napedowego z zebatka 10 15 20 25 10 wystepuje praktycznie tylko na trasie przenosnika pozba¬ wionej wykrzywien. Juz przy niewielkim zakrzywieniu trasy przenosnika wystepuja powazne zaburzenia wspól¬ pracy w wyniku powstalych zmian polozen kola wzgledem zebatki i zmian wartosci podzialki na stykach rynien prze¬ nosnika. v Istotna wada znanych bezciegnowych mechanizmów posuwu ze sztywnym umocowaniem zebatek jest bardzo waski zakres stosowania ograniczonado warunków pracy przyktórychwystepujamalezakrzywieniatrasyprzenosnika, niska trwalosc zebatki i kola napedowego oraz duza czesto¬ tliwosc uszkodzen i awarii mechanizmów.Mechanizm posuwu z przegubowym umocowaniem zebatki zwlaszcza do maszyn górniczych wedlug wynalazku posiada kolo napedowe wspólpracujace z zebatka zlozona z segmentówpolaczonych miedzysobapolaczenprzesuwno- -obrotowym, przy czym segment zebatki przymocowany jest do plyty mocujacej za pomoca dwóch przegubów ko¬ rzystnie krzyzowych polaczonych ze soba dzwignia lub kulistych.Taka konstrukcja mechanizmu posuwu umozliwia uzys¬ kanie w kazdych warunkach jego pracy stalego polozenia kola napedowego wzgledem zebatki niezaleznie od rodzaju i stopnia wykrzywienia trasy przenosnika lub innego ele¬ mentu, do którego umocowany jest przegubowy uchwyt zebatki. Istotna zaleta mechanizmu wedlug wynalazku jest mozliwosc usytuowania przekladni i kola napedowego maszyny w dowolnym miejscu dogodnym pod wzgledem konstrukcyjnym, eksploatacyjnym oraz efektywnego i sku¬ tecznego przeniesienia reakcji sily uciagu mechanizmu 108 511108 511 posuwu na podloze. Dalsze zalety to prostota konstrukcji i niezawodnosc dzialania oraz male gabaryty mechanizmu pozwalajace na jego zastosowanie w róznych warunkach górniczo-geologicznych w pelnym zakresie wysokosci wyrobisk scianowych eksploatowanych maszynami urabia¬ jacymi i ladujacymi. Mechanizm posuwu wedlug wyna-* lazku umozliwia zarówno poziome usytuowanie zebatki do wspólpracy z kolem napedowym o poziomej osi obrotu jak równiez pionowe usytuowanie zebatki do wspólpracy z kolem napedowym o pionowej osi obrotu.Przedmiot wynalazku pokazano w przykladzie wykonania na rysunku, na którym fig. I przedstawia widok z przodu mechanizmu posuwu z kolem napedowym o poziomej osi obrotu,fig. 2 — jego widok z boku, a fig. 3 — widok prze¬ gubów krzyzowych.Mechanizm posuwu wyposazony jest w kolo napedowe 1 napedzane przekladnia ciagnika 2. Kolo napedowe 1 za¬ zebia sie zsegmentami 3 zebatki skladajacymi sie ze sworzni 4 osadzonych w kadlubie £ segmentu t zebatki. segmenty 3 zebatki przymocowane sa do plyty mocujacej 6 za pomoca dwóch przegubów krzyzowych 7 i 8 polaczonych ze soba dzwignia 9. Pierwszy przegub 7 sklada sie z pionowego sworznia 10 przymocowanego do segmentu 3 zebatki i poziomego sworznia 11 osadzonych razem w kadlubie 12, a drugi przegub 8 ze sworzni poziomego 13 i pionowego 14 osadzonych w ^kadlubie 15. Na pionowym sworzniu 14 osadzony jest uchwyt mocujacy 16, który przytwierdzony je*t do plyty mocujacej 6. Segmenty 3 zebatki sa polaczone miedzy soba polaczeniem przesuwno-obrotowjm 17.Segmenty 3 zebatki posiadaja wymuszone prowadzenie przez prowadnik 18 przymocowany do kadluba 19maszyny.Powierzchnie oporowe 20 prowadnika'18 zapewniaja stale 5 polozenie segmentów 3 zebatki wzgledem kola napedowego 1.Zastrzezenia patentowe 10 1. Mechanizm posuwu z przegubowym umocowaniem zebatki, zwlaszcza do maszyn górniczych posiadajacy kolo napedowe wspólpracujace z zebatka zlozona z segmentów polaczonych miedzy soba polaczeniem przesuwno-obroto- wym, znamienny tym, ze segment (3) zebatki przymo- 15 cowany jest do plyty mocujacej (6) za pomoca dwóch przegubów pierwszego (7) i drugiego (8) polaczonych ze soba dzwignia (9). 2. Mechanizm posuwu wedlug zastrz. 1,znamiennytym, ze pionowy sworzen (10^ pierwszego przegubu (7) przy- 20 twierdzony jest do segmentu (3) zebatki, a pionowy swo¬ rzen (14) drugiego przegubu (8) przytwierdzony jest do plyty mocujacej (16), przy czym sworznie pionowy (10) i poziomy (11.) pierwszego przegubu (7) osadzone sa w ka¬ dlubie (12), a sworznie poziomy (13) i pionowy (14) 25 drugiego przegubu (8) osadzone sa w kadlubie (15). 3. Mechanizm posuwu wedlug zastrz. 1, znamienny tym, ze jego przeguby pierwszy (7) i drugi (8) sa prze¬ gubami kulistymi.108 511 PLThe subject of the invention is a feed mechanism with an articulated gear mounting, especially for mining machines such as mining and loading machines. Known constructions of non-traction feed mechanisms are equipped with wheels or drive chains that engage the gear rack rigidly attached to the conveyor chutes. The gear segments have pins, teeth or sockets of various shapes, and the gear wheels or chains are usually located in these mechanisms near the skid of the cutting and loading machine. The construction of the feed mechanism with rack segments slidably and rotatably attached to the holders attached to the conveyor chutes is also known. These segments have forced guidance in the machine guide and are connected with each other by a sliding-rotary connection. In the case of rigid mounting of the tooth segments to the conveyor chutes, the drive wheel of the feed mechanism adopts different positions relative to the rack on the curved curves of the conveyor route. Depending on the type of curvature, the drive wheel may extend in relation to the sprocket in the vertical and horizontal plane and always occupies an oblique position to the sprocket axis. Positioning the drive wheel near the skid allows only to reduce the size of these displacements in the horizontal and vertical planes, and it does not reduce the oblique position of the wheel with respect to the axis of the sprocket. Correct cooperation of the drive wheel with the sprocket 10 occurs practically only on the conveyor route without any distortions. Even with a slight curvature of the conveyor route, serious cooperation disorders occur as a result of changes in the position of the wheel relative to the sprocket and changes in the scale value at the contacts of the conveyor troughs. A significant disadvantage of the known chainless feed mechanisms with rigid mounting of the gears is a very narrow scope of application, limited to the operating conditions in which there are curvature of the conveyor belt, low durability of the gear and drive wheel, and a high frequency of damage and failure of the mechanisms. A drive wheel cooperating with a gearwheel composed of segments connected between the interconnection of the sliding-rotary link, the gear segment being attached to the mounting plate by means of two preferably cross joints connected with each other by a lever or spherical joints. Such a construction of the feed mechanism enables its operation in all conditions. a fixed position of the drive wheel with respect to the sprocket, irrespective of the type and degree of curvature of the conveyor route or other element to which the articulated sprocket holder is attached. A significant advantage of the mechanism according to the invention is the possibility of positioning the gearbox and the drive wheel of the machine in any convenient location in terms of design and operation, and the effective and efficient transfer of the tractive force of the feed mechanism 108 511108 511 to the ground. Further advantages include the simplicity of the 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 range of the height of the wall workings operated with mining and loading machines. The feed mechanism according to the invention enables both the horizontal positioning of the gear for cooperation with the drive wheel with a horizontal axis of rotation as well as the vertical position of the gearbox for cooperation with the drive wheel with a vertical axis of rotation. The subject of the invention is shown in the example of the embodiment in the drawing, in which Fig. shows the front view of the feed mechanism with a drive wheel with a horizontal axis of rotation, Fig. 2 - its side view, and Fig. 3 - view of the cruciform joints. The feed mechanism is equipped with a drive wheel 1 driven by the tractor's gear 2. The drive wheel 1 is gearing with segments 3 gears consisting of pins 4 embedded in the body. gear t segment. gear segments 3 are attached to the fixing plate 6 by two universal joints 7 and 8 connected to each other by a lever 9. The first joint 7 consists of a vertical pin 10 attached to segment 3 of the sprocket and a horizontal pin 11 seated together in the casing 12, and the second joint 8 with the horizontal 13 and vertical 14 bolts embedded in the hull 15. The vertical bolt 14 is fitted with a mounting bracket 16, which is attached to the mounting plate 6. Segments of the 3 sprockets are connected with each other by a sliding-rotary connection 17. Segments 3 sprockets They have positive guidance through the guide 18 attached to the frame 19 of the machine. The stop surfaces 20 of the guide '18 ensure a constant 5 position of the segments 3 sprockets in relation to the drive wheel 1. Patent claims 10 1. Feed mechanism with articulated mounting of the sprocket, especially for mining machines having a drive wheel cooperating with a sprocket composed of segments connected with each other by a sliding-rotary connection - one, characterized in that the gear segment (3) is attached to the mounting plate (6) by means of two first (7) and second (8) joints connected to each other by a lever (9). 2. Feed mechanism according to claim 3. The method of claim 1, characterized in that a vertical pin (10) of the first joint (7) is attached to the gear segment (3), and a vertical pin (14) of the second joint (8) is attached to the mounting plate (16) by the vertical (10) and horizontal (11) pins of the first joint (7) are embedded in the cage (12), and the horizontal (13) and vertical (14) pins of the second joint (8) are embedded in the hull (15) 3. Feed mechanism according to claim 1, characterized in that its first (7) and second (8) joints are ball joints.

Claims (3)

1. Zastrzezenia patentowe 10 1. Mechanizm posuwu z przegubowym umocowaniem zebatki, zwlaszcza do maszyn górniczych posiadajacy kolo napedowe wspólpracujace z zebatka zlozona z segmentów polaczonych miedzy soba polaczeniem przesuwno-obroto- wym, znamienny tym, ze segment (3) zebatki przymo- 15 cowany jest do plyty mocujacej (6) za pomoca dwóch przegubów pierwszego (7) i drugiego (8) polaczonych ze soba dzwignia (9).1. Patent claims 10 1. Feed mechanism with articulated mounting of the gear, especially for mining machines, having a drive wheel cooperating with a gear made of segments connected with each other by a sliding-rotary connection, characterized in that the segment (3) of the gear is attached it is attached to the mounting plate (6) by means of two joints, the first (7) and the second (8), connected to each other by a lever (9). 2. Mechanizm posuwu wedlug zastrz. 1,znamiennytym, ze pionowy sworzen (10^ pierwszego przegubu (7) przy- 20 twierdzony jest do segmentu (3) zebatki, a pionowy swo¬ rzen (14) drugiego przegubu (8) przytwierdzony jest do plyty mocujacej (16), przy czym sworznie pionowy (10) i poziomy (11.) pierwszego przegubu (7) osadzone sa w ka¬ dlubie (12), a sworznie poziomy (13) i pionowy (14) 25 drugiego przegubu (8) osadzone sa w kadlubie (15).2. Feed mechanism according to claim 3. The method of claim 1, characterized in that a vertical pin (10) of the first joint (7) is attached to the gear segment (3), and a vertical pin (14) of the second joint (8) is attached to the mounting plate (16) by the vertical (10) and horizontal (11) pins of the first joint (7) are embedded in the cage (12), and the horizontal (13) and vertical (14) pins of the second joint (8) are embedded in the hull (15) ). 3. Mechanizm posuwu wedlug zastrz. 1, znamienny tym, ze jego przeguby pierwszy (7) i drugi (8) sa prze¬ gubami kulistymi.108 511 PL3. Feed mechanism according to claim A device according to claim 1, characterized in that its first (7) and second (8) joints are ball joints.
PL19415176A 1976-03-05 1976-12-02 Advance mechanism with articulated rack,especially for mining machines PL108511B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PL19415176A PL108511B1 (en) 1976-12-02 1976-12-02 Advance mechanism with articulated rack,especially for mining machines
DE19772709111 DE2709111C2 (en) 1976-03-05 1977-03-02 Feed rods for gear-driven machines, especially for cutting machines in mining
AT141777A AT349412B (en) 1976-03-05 1977-03-03 ELECTRIC FEED DRIVE ESPECIALLY FOR MINING MACHINERY
GB911077A GB1569912A (en) 1976-03-05 1977-03-04 Installation including a track-mounted machine and driving gear therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL19415176A PL108511B1 (en) 1976-12-02 1976-12-02 Advance mechanism with articulated rack,especially for mining machines

Publications (2)

Publication Number Publication Date
PL194151A1 PL194151A1 (en) 1978-06-05
PL108511B1 true PL108511B1 (en) 1980-04-30

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PL19415176A PL108511B1 (en) 1976-03-05 1976-12-02 Advance mechanism with articulated rack,especially for mining machines

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PL194151A1 (en) 1978-06-05

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