GB1139939A - Device for driving a rotary type working member of a mechanized drifting shield - Google Patents

Device for driving a rotary type working member of a mechanized drifting shield

Info

Publication number
GB1139939A
GB1139939A GB4374866A GB4374866A GB1139939A GB 1139939 A GB1139939 A GB 1139939A GB 4374866 A GB4374866 A GB 4374866A GB 4374866 A GB4374866 A GB 4374866A GB 1139939 A GB1139939 A GB 1139939A
Authority
GB
United Kingdom
Prior art keywords
pairs
working
pawls
cylinders
carriers
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
Application number
GB4374866A
Inventor
Evgeny Moiseevich Bolotin
Lev Abramovich Blyakher
Boris Nikolaevich Ierusalimsky
Leonid Ivanovich Saveliev
Vladimir Ivanovich Razmerov
Leonid Konstantinovi Khaidurov
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.)
MEKH ZD NO 5
Original Assignee
MEKH ZD NO 5
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 MEKH ZD NO 5 filed Critical MEKH ZD NO 5
Priority to GB4374866A priority Critical patent/GB1139939A/en
Publication of GB1139939A publication Critical patent/GB1139939A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
    • F15B15/06—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement
    • F15B15/061—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement by unidirectional means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H31/00—Other gearings with freewheeling members or other intermittently driving members
    • F16H31/003—Step-by-step mechanisms for rotary motion
    • F16H31/005—Step-by-step mechanisms for rotary motion with pawls driven by a reciprocating or oscillating transmission member

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

1,139,939. Tunnelling machines. MEK HANICHESKY ZAVOD No. 5. 30 Sept., 1966, No. 43748/66. Heading E1F. '[Also in Division F2] A drive for the continuous rotation of a working' member 3 of a mechanized drifting shield for mining medium hard to granulated ground comprises at least two ratchet mechanisms 5, 5<SP>1</SP> driven ratchet wheels 6, 6<SP>1</SP> of which are fast on the working member shaft 7 and driving carriers 8 of which pivotally carry pairs of pawls. 9, 9<SP>1</SP> loaded by springs 10 and are pivotally connected to the moving elements 11, 11<SP>1</SP> of pairs of. opposed double-acting hydraulic cylinders 12, 12<SP>1</SP>, the pawl pairs '9, 91 being relatively circumferentially displaced when the cylinder pairs 12, 12<SP>1</SP> are alternately operated. The working strokes of the two pairs of cylinders 12, 12<SP>1</SP> overlap and to provide consequential difference in stroke speeds to enable the overlapping pawls to catch up and, for some time, operate together with the overlapped pawls, 'each cylinder, in addition to ports: 13, 14 for idle and working strokes, comprises a throttled additional port in its middle region, for release of working fluid, and consequent stroke deceleration, at the stroke ends. The operation of the cylinders 12, 12<SP>1</SP> is controlled by a slide valve 16 actuated by cams 17, e.g. on the shaft 7. For reversal of the working member 3, additional, backwardly directed, pawls may be provided on the carriers 8, or removable inserts (Fig. 3, not shown) engaging tooth spaces of .the ratchet wheels 6, 6<SP>1</SP> may be secured to the carriers 8, in which case, starting with the cylinder movable elements 11, 11<SP>1</SP> fully ex-. tended, reverse rotation of the member 3 is by reverse strokes of the cylinders.
GB4374866A 1966-09-30 1966-09-30 Device for driving a rotary type working member of a mechanized drifting shield Expired GB1139939A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4374866A GB1139939A (en) 1966-09-30 1966-09-30 Device for driving a rotary type working member of a mechanized drifting shield

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4374866A GB1139939A (en) 1966-09-30 1966-09-30 Device for driving a rotary type working member of a mechanized drifting shield

Publications (1)

Publication Number Publication Date
GB1139939A true GB1139939A (en) 1969-01-15

Family

ID=10430152

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4374866A Expired GB1139939A (en) 1966-09-30 1966-09-30 Device for driving a rotary type working member of a mechanized drifting shield

Country Status (1)

Country Link
GB (1) GB1139939A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4026206A (en) * 1974-05-22 1977-05-31 Societe D'exploitation Des Ets Coq Pressing device working in continuous operation
FR2409939A1 (en) * 1977-11-28 1979-06-22 Teske Lothar UNLOADING TROLLEY FOR THE EVACUATION OF BUNKS, SILOS OR THE LIKE CONTAINING BULK MATERIALS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4026206A (en) * 1974-05-22 1977-05-31 Societe D'exploitation Des Ets Coq Pressing device working in continuous operation
FR2409939A1 (en) * 1977-11-28 1979-06-22 Teske Lothar UNLOADING TROLLEY FOR THE EVACUATION OF BUNKS, SILOS OR THE LIKE CONTAINING BULK MATERIALS

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