GB966187A - Improvements in or relating to control apparatus for fluidpressure operated motors of mining and other machines - Google Patents

Improvements in or relating to control apparatus for fluidpressure operated motors of mining and other machines

Info

Publication number
GB966187A
GB966187A GB4512263A GB4512263A GB966187A GB 966187 A GB966187 A GB 966187A GB 4512263 A GB4512263 A GB 4512263A GB 4512263 A GB4512263 A GB 4512263A GB 966187 A GB966187 A GB 966187A
Authority
GB
United Kingdom
Prior art keywords
pump
pressure
main valve
valve
motors
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
GB4512263A
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.)
Gebr Eickhoff Maschinenfabrik u Eisengiesserei GmbH
Original Assignee
Gebr Eickhoff Maschinenfabrik u Eisengiesserei GmbH
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 Gebr Eickhoff Maschinenfabrik u Eisengiesserei GmbH filed Critical Gebr Eickhoff Maschinenfabrik u Eisengiesserei GmbH
Publication of GB966187A publication Critical patent/GB966187A/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
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C31/00—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam
    • E21C31/12—Component parts
    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/4069—Valves related to the control of neutral, e.g. shut off valves
    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/4192—Detecting malfunction or potential malfunction, e.g. fail safe
    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/46—Automatic regulation in accordance with output requirements
    • F16H61/461—Automatic regulation in accordance with output requirements not involving a variation of the output capacity of the main pumps or motors

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

966,187. Fluid-pressure servomotor systems. EICKHOFF MASCHINENFABRIK UND EISENGIESSEREI GEB. Dec.20, 1960 [Jan. 23, 1960], No. 45122/63. Divided out of 944,899. Addition to 876,236. Heading G3P. [Also in Divisions E1 and F2] In apparatus in which, as in the parent Specification, either of a pair of hydraulic motors 1, 2 driving mining machinery is put into operation by the displacement of a main valve 3 from its central, neutral position, and in which a main pump 4 feeds the motors and an auxiliary pump 6 discharges into the low pressure side of the pump 4 and also acts to retract spring-loaded plungers 5, 5<SP>1</SP> to enable the main valve to be displaced, a valve 40 normally allows the discharge from the pump 6 to leak to sump through restricted passages 41 so that pressure is maintained on the plungers 5, 5<SP>1</SP>. In the event of an overload on either of the motors 1, 2, giving rise to a pressure sufficient to open either of a pair of overload valves 46, 46<SP>1</SP>, the flow through a conduit 47 and restriction in one end of the valve 40 depresses the latter against a spring 45 to provide unrestricted venting of the delivery from the pump 6 with consequent release of the plungers 5, 5<SP>1</SP> so that the main valve is returned to the neutral position. The main valve is also returned to neutral in the event of failure of pressure from the pump 6.
GB4512263A 1960-01-23 1960-12-20 Improvements in or relating to control apparatus for fluidpressure operated motors of mining and other machines Expired GB966187A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE18796A DE1126342B (en) 1960-01-23 1960-01-23 Control device for hydraulically operated cutting machine

Publications (1)

Publication Number Publication Date
GB966187A true GB966187A (en) 1964-08-06

Family

ID=7069848

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4512263A Expired GB966187A (en) 1960-01-23 1960-12-20 Improvements in or relating to control apparatus for fluidpressure operated motors of mining and other machines

Country Status (2)

Country Link
DE (1) DE1126342B (en)
GB (1) GB966187A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111288045A (en) * 2020-03-20 2020-06-16 青岛中加特电气股份有限公司 Control method for loading and unloading electromagnetic valve of pump station

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111288045A (en) * 2020-03-20 2020-06-16 青岛中加特电气股份有限公司 Control method for loading and unloading electromagnetic valve of pump station
CN111288045B (en) * 2020-03-20 2021-11-30 青岛中加特电气股份有限公司 Control method for loading and unloading electromagnetic valve of pump station

Also Published As

Publication number Publication date
DE1126342B (en) 1962-03-29

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