US3834763A - Divided tool cutter head have torque yielding coupling - Google Patents

Divided tool cutter head have torque yielding coupling Download PDF

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Publication number
US3834763A
US3834763A US00374386A US37438673A US3834763A US 3834763 A US3834763 A US 3834763A US 00374386 A US00374386 A US 00374386A US 37438673 A US37438673 A US 37438673A US 3834763 A US3834763 A US 3834763A
Authority
US
United States
Prior art keywords
shaft
torque
cutting
cutting tool
end portion
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US00374386A
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English (en)
Inventor
S Sigott
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voestalpine AG
Original Assignee
Voestalpine AG
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 Voestalpine AG filed Critical Voestalpine AG
Application granted granted Critical
Publication of US3834763A publication Critical patent/US3834763A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
    • E21D9/104—Cutting tool fixtures
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/04—Safety devices
    • E21C35/043—Protection against overload during transfer of machines for slitting or completely freeing the mineral from the seam

Definitions

  • a cutting tool shaft is mounted in the free end portion of a jib arm and has a shaft end portion protruding from the free end portion of the: jib arm.
  • a cutting tool is carried by said shaft end portion.
  • Torquelimiting clutch means connect said cutting tool to said shaft.
  • the structural parts of the drive means will break if their load-carrying capacity is ex ceeded by the forces which are exerted thereon by the rotational energy which is released in case of a blocking.
  • a blocking cannot be avoided and the braking time may be of any order of magnitude.
  • the load peaks must be reduced in order to avoid an overload which would break structural parts of the drive means.
  • the invention relates to such dividing cutting machine in which cutting tool means are mounted on one or two output shaft end portions at the end of a jib arm, and it is an object of the invention to avoid the disadvantages which are due to an overload.
  • the invention resides essentially in that the cutting tool means are connected to the cutting tool shaft by a torque-limiting clutch, which frictionally transmits torques to a predetermined value whereas in case of an overload due to a blocking of the cutting tool means the shaft end portions slip relative to the cutting tool means.
  • This torque-limiting clutch may comprise radially preloaded slip clutches or friction elements, which are known per se, because it is only essential that the torque-limiting clutch is provided between the output shaft end portions of the transmission and the cutting tool means.
  • the cutting tool means comprise two cutting tools carried by a transmission output shaft which extends transversely to the longitudinal axis of the jib arm, it will be desirable in accordance with the invention to connect each cutting tool by a torque-limiting clutch to the associated output shaft end portion of the transmission.
  • FIG. 1 is a top plan view showing the jib arm of a dividing cutting machine provided with two cutting tools.
  • FIG. 2 is an axial sectional view showing one cutting tool.
  • the jib arm 1 is mounted on the cutting machine by a rotating mechanism for pivotal movement in all directions.
  • a cutting tool drive motor may be accommodated in the jib arm 1.
  • a cutting tool shaft or transmission output shaft 3 is mounted, which extends transversely to the longitudinal axis of the jib arm and is driven by the cutting tool motor through the intermediary of transmission stages.
  • This cutting tool shaft 3 has two opposite end portions which protrude from the free end of the jib arm. Each of said shaft end portions carries a cutting tool 4, which is connected to the shaft end portion 3 by a torquelimiting clutch 5.
  • the cutting tool 4 and the torque-limiting clutch 5 are shown on a larger scale in FIG. 2.
  • This torquelimiting clutch 5 consists of one or more slip clutch elements 6, in the embodiment shown by way of example on the drawing of three such elements.
  • Each of these slip clutch elements comprises a biconical outer split ring 7, which cooperates with the bore 8 of the cutting tool 4, and a biconical inner split ring 9, which cooperates with the shaft end portion 3.
  • Wedge-shaped elements 10 and Ill cooperate with these biconical rings 7 and 9 and may also consist of the conical rings.
  • the wedge-shaped elements 10 and Ill are forced toward each other to force the biconical split rings 7 and 9 against the bore 8 and the shaft end portion 3, respectively.
  • the cutting tools 4 are set with cutter bits 13 around their periphery.
  • a divided tool cutting machine which comprises a jib arm having a free end portion
  • a cutting tool shaft mounted in said free end portion and having a shaft end portion protruding from said free end portion of said jib arm
  • torque-limiting clutch means connecting said cutting tool to said shaft.
  • each of said shaft end portions carries a cutting tool
  • said torque-limiting clutch means connect said cutting tools to said shaft.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Operated Clutches (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)
  • Harvester Elements (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
  • Turning (AREA)
US00374386A 1972-06-30 1973-06-28 Divided tool cutter head have torque yielding coupling Expired - Lifetime US3834763A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT564172A AT316462B (de) 1972-06-30 1972-06-30 Teilschnitt-Schrämmaschine

Publications (1)

Publication Number Publication Date
US3834763A true US3834763A (en) 1974-09-10

Family

ID=3578020

Family Applications (1)

Application Number Title Priority Date Filing Date
US00374386A Expired - Lifetime US3834763A (en) 1972-06-30 1973-06-28 Divided tool cutter head have torque yielding coupling

Country Status (22)

Country Link
US (1) US3834763A (xx)
JP (1) JPS5344883B2 (xx)
AR (1) AR203085A1 (xx)
AT (1) AT316462B (xx)
AU (1) AU5753173A (xx)
BE (1) BE801771A (xx)
BG (1) BG30027A3 (xx)
BR (1) BR7304878D0 (xx)
CA (1) CA982164A (xx)
CS (1) CS184328B2 (xx)
DD (1) DD104599A5 (xx)
DE (2) DE2332471A1 (xx)
ES (1) ES416343A1 (xx)
FR (1) FR2191016B1 (xx)
GB (1) GB1414008A (xx)
HU (1) HU171018B (xx)
PL (1) PL87081B1 (xx)
RO (1) RO68296A (xx)
SE (1) SE404063B (xx)
SU (1) SU566531A3 (xx)
YU (1) YU35657B (xx)
ZA (1) ZA734361B (xx)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4098539A (en) * 1975-09-02 1978-07-04 Vereinigte Osterreichische Eisen- Und Stahlwerke - Alpine Montan Aktiengesellschaft Cutting machine
US4647112A (en) * 1984-04-14 1987-03-03 Charbonnages De France Rotary cutter for gouging out ore from mine faces

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1584752A (en) * 1977-05-25 1981-02-18 Transport Secretary Of State F Rock cutting tools
JPS6082226U (ja) * 1983-11-09 1985-06-07 株式会社石田衡器製作所 商品の計量値付け装置
AT385086B (de) * 1986-04-16 1988-02-10 Voest Alpine Ag Antriebsanordnung fuer die schraemkoepfe einer schraemmaschine
JPS6421124U (xx) * 1987-07-29 1989-02-02
JPS6421123U (xx) * 1987-07-29 1989-02-02

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1148975A (en) * 1909-03-17 1915-08-03 Harry A Kuhn Mining-machine.
US1554755A (en) * 1924-07-23 1925-09-22 Ingersoll Rand Co Clutch coupling
US2695164A (en) * 1950-05-03 1954-11-23 Lee Norse Co Continuous mining machine with oscillating groups of rotary cutters
US2760800A (en) * 1951-12-19 1956-08-28 Stephen N Wekeman Multi-purposed collar for shafts
US3693734A (en) * 1970-10-30 1972-09-26 Richmond Mfg Co Boring auger for horizontal earth boring machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1148975A (en) * 1909-03-17 1915-08-03 Harry A Kuhn Mining-machine.
US1554755A (en) * 1924-07-23 1925-09-22 Ingersoll Rand Co Clutch coupling
US2695164A (en) * 1950-05-03 1954-11-23 Lee Norse Co Continuous mining machine with oscillating groups of rotary cutters
US2760800A (en) * 1951-12-19 1956-08-28 Stephen N Wekeman Multi-purposed collar for shafts
US3693734A (en) * 1970-10-30 1972-09-26 Richmond Mfg Co Boring auger for horizontal earth boring machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4098539A (en) * 1975-09-02 1978-07-04 Vereinigte Osterreichische Eisen- Und Stahlwerke - Alpine Montan Aktiengesellschaft Cutting machine
US4647112A (en) * 1984-04-14 1987-03-03 Charbonnages De France Rotary cutter for gouging out ore from mine faces

Also Published As

Publication number Publication date
JPS4966505A (xx) 1974-06-27
SE404063B (sv) 1978-09-18
AR203085A1 (es) 1975-08-14
BE801771A (fr) 1973-10-15
PL87081B1 (xx) 1976-06-30
JPS5344883B2 (xx) 1978-12-02
BG30027A3 (en) 1981-03-16
SU566531A3 (ru) 1977-07-25
RO68296A (ro) 1980-08-15
YU35657B (en) 1981-04-30
ZA734361B (en) 1974-06-26
YU178973A (en) 1980-09-25
GB1414008A (en) 1975-11-12
AU5753173A (en) 1975-01-09
FR2191016A1 (xx) 1974-02-01
AT316462B (de) 1974-07-10
FR2191016B1 (xx) 1977-02-18
CS184328B2 (en) 1978-08-31
DE2332471A1 (de) 1974-01-17
BR7304878D0 (pt) 1974-08-15
HU171018B (hu) 1977-10-28
CA982164A (en) 1976-01-20
ES416343A1 (es) 1976-02-16
DD104599A5 (xx) 1974-03-12
DE7323702U (de) 1976-06-24

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