PL420601A1 - Device and method for reinforcing rotating picks of mechanical coal miners - Google Patents

Device and method for reinforcing rotating picks of mechanical coal miners

Info

Publication number
PL420601A1
PL420601A1 PL420601A PL42060117A PL420601A1 PL 420601 A1 PL420601 A1 PL 420601A1 PL 420601 A PL420601 A PL 420601A PL 42060117 A PL42060117 A PL 42060117A PL 420601 A1 PL420601 A1 PL 420601A1
Authority
PL
Poland
Prior art keywords
knife
strengthening
shaft
base
rollers
Prior art date
Application number
PL420601A
Other languages
Polish (pl)
Other versions
PL235527B1 (en
Inventor
Piotr Cheluszka
Stanisław Mikuła
Original Assignee
Politechnika Śląska
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 Śląska filed Critical Politechnika Śląska
Priority to PL420601A priority Critical patent/PL235527B1/en
Publication of PL420601A1 publication Critical patent/PL420601A1/en
Publication of PL235527B1 publication Critical patent/PL235527B1/en

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Landscapes

  • Combines (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

Przyrząd do umacniania obrotowych noży kombajnów górniczych charakteryzuje się tym, że na obwodzie podstawy (9) umieszczone są co najmniej trzy wsporniki (11) z uchylnymi dźwigniami (12) wyposażonymi w rolki umacniające (6) osadzone obrotowo na osiach (14), przy czym w centralnej części podstawy (9) znajduje się tuleja (17) trzpienia prowadzącego (8) osadzonego w oprawie łożyska wzdłużnego (18), na którym oparte jest gniazdo (2). Sposób umacniania obrotowych noży polega na tym, że w gnieździe (2) umieszcza się nóż (1), po czym opuszcza się obracający się zabierak (3), który powoduje przemieszczanie się noża (1) w dół, podczas którego wykonuje się zgniot powierzchniowy trzonka noża (1) w stronę strefy promienia przejściowego (7), następuje ściśnięcie sprężyny śrubowej (5), która naciskając na klin stożkowy (15) odchyla dźwignie uchylne (12), a rolki umacniające (6) dociskane są do powierzchni trzonka noża (1), po zakończeniu procesu nagniatania promienia przejściowego (7) następuje umacnianie trzonka noża (1) w kierunku od strefy promienia przejściowego (7) do jego dolnego końca.The device for strengthening rotary combine harvester knives is characterized by the fact that at least three brackets (11) with tilting levers (12) equipped with strengthening rollers (6) rotatably mounted on axles (14) are placed on the perimeter of the base (9). in the central part of the base (9) there is a sleeve (17) of the guide pin (8) mounted in the thrust bearing housing (18) on which the seat (2) is supported. The method of strengthening the rotary knives consists in placing a knife (1) in the socket (2), after which the rotating carrier (3) is lowered, which causes the knife (1) to move downwards, during which the surface deformation of the shaft knife (1) towards the transition radius (7), the coil spring (5) is compressed, which by pressing on the conical wedge (15) deflects the pivot levers (12), and the strengthening rollers (6) are pressed against the surface of the knife shaft (1) ), after completing the burnishing process of the transition beam (7), the knife shaft (1) is strengthened in the direction from the transition beam zone (7) to its lower end.

PL420601A 2017-02-20 2017-02-20 Device and method for reinforcing rotating picks of mechanical coal miners PL235527B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL420601A PL235527B1 (en) 2017-02-20 2017-02-20 Device and method for reinforcing rotating picks of mechanical coal miners

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL420601A PL235527B1 (en) 2017-02-20 2017-02-20 Device and method for reinforcing rotating picks of mechanical coal miners

Publications (2)

Publication Number Publication Date
PL420601A1 true PL420601A1 (en) 2018-08-27
PL235527B1 PL235527B1 (en) 2020-08-24

Family

ID=63229367

Family Applications (1)

Application Number Title Priority Date Filing Date
PL420601A PL235527B1 (en) 2017-02-20 2017-02-20 Device and method for reinforcing rotating picks of mechanical coal miners

Country Status (1)

Country Link
PL (1) PL235527B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL249039B1 (en) * 2023-10-18 2026-02-23 Politechnika Śląska Method and device for comparative evaluation of the resistance to breakage of combine tangential-rotary knives

Also Published As

Publication number Publication date
PL235527B1 (en) 2020-08-24

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