US3001418A - Level selector for a multiple-level hoisting machine - Google Patents

Level selector for a multiple-level hoisting machine Download PDF

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Publication number
US3001418A
US3001418A US767188A US76718858A US3001418A US 3001418 A US3001418 A US 3001418A US 767188 A US767188 A US 767188A US 76718858 A US76718858 A US 76718858A US 3001418 A US3001418 A US 3001418A
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US
United States
Prior art keywords
cams
level
shaft
selector
hoisting machine
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
US767188A
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English (en)
Inventor
Nectoux Andre
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.)
Societe des Forges et Ateliers du Creusot
Original Assignee
Societe des Forges et Ateliers du Creusot
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 Societe des Forges et Ateliers du Creusot filed Critical Societe des Forges et Ateliers du Creusot
Application granted granted Critical
Publication of US3001418A publication Critical patent/US3001418A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/46—Adaptations of switches or switchgear
    • B66B1/52—Floor selectors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/1828—Cam, lever, and slide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2101—Cams
    • Y10T74/2102—Adjustable

Definitions

  • the present invention relates to a level selector for a multiple-level hoisting machine, and more particularly for hoisting machines comprising a control device subject to the positions of the hoisting cages and assuring automatically the control of the different speeds to be established (accelerations, normal running speeds, decelerations); the level selector controlling for this purpose the action of an auxiliary source of energy on the control device.
  • the level selector comprises a plurality of cams moved along a supporting shaft and in rotation by the shaft which shaft is rotated by the rotation of the hoisting machine.
  • the said cams are offset axially Vfrom one'another on their shaft in function of the distances separating the levels in themine to be served by the hoisting cage in such a manner as to act successively on a plurality of contact mechanisms each of which is associated with one of the levels and selectively controlled by a preselector.
  • the cams are mounted on the said shaft with an adjustable angular offset in function of the wear of the grooves of the pulleys of the hoisting mechanism.
  • FIGURE 1 is a longitudinal section along the axis of the'control shaft of the cams of the level selector
  • FIGURE 2 is a cross section on the line II-II of FIG- URE 1 showing the angular disposition of the cams.
  • live contactors 1a, 1b, 1c, 1d, 1e are controlled by a slider member 2 guided in the iixed supports 3 and 4 and comprising five ramps 5a, 5b, 5c, 5d, 5e, oiset from one another in such a manner that the said contactors are actuated successively when the slider member 2 is raised, abutting one of the ends of a lever 6 pivotally mounted on a iixed axle 7, the other end of which lever carries a roller 8.
  • the ramps 5a, 5b, 5c, 5d, 5e have such different heights that the corresponding contactors reached by the ramps when the slider member Z is raised, will remain subject to the action of the ramps up to the moment when theslider member 2 falls back and releases the same.
  • the swinging of the lever 6 is controlled by a group of iive cams 9a, 9b, 9c, 9d, 9e brought successively in front of the roller 8 owing to movement along shaft 12 in the sense of the arrow F, and driven at the same time by a rotary movement in the sense of the arrow f (FIG- URE 2).
  • the cams 9 are integrated, for axial movement and for rotation, with a sleeve 10.
  • This sleeve comprises an internal screw thread constantly in mesh with a screw-threaded portion 11 of a iixed spindle or shaft 12, and has external splines constantly in engagement with internal splines of a hollow shaft 13 which is journalled in bearings 14 and 15 and is integral with a bevel pinion 16 actuated by a shaft (not shown) coupled to a rotating shaft of the hoisting machine.
  • cams 9a, 9b, 9c, 9d, 9e are respectively integral with pinions 17a, 1719, 17e, 17d, 17e, mounted idly on sleeve 10, and are respectively in mesh with pinions 18a, 18h, 18C, 18d, 18e keyed to a common shaft 19 centered in two supports 20 and 21 integral with the sleeve 10.
  • the shaft 19 carries a wormV gear wheel 22 in mesh with a worm 23 having a self-locking thread mounted on the support 21, the rotation of said worm being controlled by the aid of a hand wheel 24.
  • the group of cams 9a-9e is driven rotationally at the same speed as the sleeve 10.
  • Openings 25 are provided in each of the cams 9 providing a passage for the hubs of the pinions 18 to permit angular adjustment of cams 9 with respect to the sleeve 10.
  • Each of the cams 9 has two procludes constituted by cylindrical elements of different radii R and r (FIGURE 2). Considering the cams as viewed in the direction of the arrow F, the respective radii R and r diminish from one cam to the other, the radii Rd, Rc, Rb and Ra being, respectively, slightly greater than the radii re, rd, rc and rb.
  • profile radii R and r of one and the same cam are connected to one another by an inclined ramp 26 and by a radial step 27.
  • the ramp 5c acts on the contactor 1c which is energized by the pre-selector, and a control impulse is transmitted to the control device of the hoisting machine (not shown), the action of the contactor 1c being continued as long as the probook of the radius Rc remains in contact with the roller 8.
  • the roller 8 is successively disengaged from the cams 9c, 9b and 9a, which nally allows the slider member 2 to return to its initial position in which none of the contactors 1 are engaged by the ramps 5.
  • the profiles of radius R of the iive cams 9 may have equal angular amplitudes calculated in such a manner that each of the corresponding contactors intervenes when the hoisting cage has arrived at a predetermined distance from the selected minelevel, and thus actuates the control device of the hoisting machine atthe beginning of the period of deceleration if the cage is being lowered, while during 3 the lifting ofthe cage the acceleration period ceases when the vaction of the cam on the contacter terminates.
  • the distances d between the cams are equal which corresponds to equal distances between thermine levels to be served, andy when these distances are unequal', Vthe distances d must be modified in function-V of the actual distances between the levels, for example by the insertion of shims (not shown) between the cams 9 and between the pinions 17, 18.
  • the level selector described here-y Y inabove may be modified or supplemented by any suitable accessory member within the scope of Ithe invention.
  • the larger one of them may comprise a rim
  • Vthe level selector may be used in combination with any other type of distributor lof energy
  • a level selector for multi-level hoisting machine for mine hoisting cages comprising a rotatable threaded, shaft, a sleeve mounted on and engaging the threads of said shaft for rotation on and by said shaft and for moveg ment along said shaft, a plurality of cams of differing radii mounted on said sleeve, means for spacing said",
  • cams from one another on said shaft, a plurality of con-V tact mechanisms adjacent said cams, a single selector, means actuated by said cams for selectively energizing one of said contact mechanisms and for moving said v selector into engagement with said contact mechanisms and manually yactuated means coupled to and rotating said cams with respect toV said shaft for adjusting the angularV spacing of said cams on said shaft.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Transmission Devices (AREA)
US767188A 1957-10-18 1958-10-14 Level selector for a multiple-level hoisting machine Expired - Lifetime US3001418A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR874830X 1957-10-18
FR3001418X 1957-10-18
FR350444X 1957-10-18

Publications (1)

Publication Number Publication Date
US3001418A true US3001418A (en) 1961-09-26

Family

ID=27249033

Family Applications (1)

Application Number Title Priority Date Filing Date
US767188A Expired - Lifetime US3001418A (en) 1957-10-18 1958-10-14 Level selector for a multiple-level hoisting machine

Country Status (2)

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US (1) US3001418A (fr)
CH (1) CH350444A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3212353A (en) * 1961-05-31 1965-10-19 Controls Co Of America Molded cam assembly
US3350948A (en) * 1965-06-04 1967-11-07 Micromatic Hone Corp Linear motion transmitting device
US4210299A (en) * 1976-12-27 1980-07-01 Marcel Chabonat Propulsive lifting rotors
US5734139A (en) * 1995-12-27 1998-03-31 Huegin; Walter Shut-off device for a driven shaft

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1336803A (en) * 1919-09-02 1920-04-13 Firm Of Robert Bosch Ag At Stu Common cam-driving device for actuating the pistons of a plurality of pumps
US1684064A (en) * 1924-05-29 1928-09-11 Hartford Empire Co Timing mechanism
GB366508A (en) * 1929-07-29 1932-01-29 Aureliusz Jendrusik An improved valve gear with variable cam face adjustable during operation
US2450311A (en) * 1945-11-08 1948-09-28 Breeze Corp Adjustable cam actuator
US2483712A (en) * 1945-05-04 1949-10-04 Nat Automatic Tool Company Inc Machine tool
US2528344A (en) * 1948-07-17 1950-10-31 Union Bag & Paper Corp Adjustable cam mechanism
US2544545A (en) * 1948-12-11 1951-03-06 T L Smith Co Mixer
US2857784A (en) * 1955-11-16 1958-10-28 Harrison D Brailsford Adjustable timing cam

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1336803A (en) * 1919-09-02 1920-04-13 Firm Of Robert Bosch Ag At Stu Common cam-driving device for actuating the pistons of a plurality of pumps
US1684064A (en) * 1924-05-29 1928-09-11 Hartford Empire Co Timing mechanism
GB366508A (en) * 1929-07-29 1932-01-29 Aureliusz Jendrusik An improved valve gear with variable cam face adjustable during operation
US2483712A (en) * 1945-05-04 1949-10-04 Nat Automatic Tool Company Inc Machine tool
US2450311A (en) * 1945-11-08 1948-09-28 Breeze Corp Adjustable cam actuator
US2528344A (en) * 1948-07-17 1950-10-31 Union Bag & Paper Corp Adjustable cam mechanism
US2544545A (en) * 1948-12-11 1951-03-06 T L Smith Co Mixer
US2857784A (en) * 1955-11-16 1958-10-28 Harrison D Brailsford Adjustable timing cam

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3212353A (en) * 1961-05-31 1965-10-19 Controls Co Of America Molded cam assembly
US3350948A (en) * 1965-06-04 1967-11-07 Micromatic Hone Corp Linear motion transmitting device
US4210299A (en) * 1976-12-27 1980-07-01 Marcel Chabonat Propulsive lifting rotors
US5734139A (en) * 1995-12-27 1998-03-31 Huegin; Walter Shut-off device for a driven shaft

Also Published As

Publication number Publication date
CH350444A (fr) 1960-11-30

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