GB895873A - Improvements in or relating to loading means for maintaining dynamic loading on annular thrust members - Google Patents

Improvements in or relating to loading means for maintaining dynamic loading on annular thrust members

Info

Publication number
GB895873A
GB895873A GB931060A GB931060A GB895873A GB 895873 A GB895873 A GB 895873A GB 931060 A GB931060 A GB 931060A GB 931060 A GB931060 A GB 931060A GB 895873 A GB895873 A GB 895873A
Authority
GB
United Kingdom
Prior art keywords
gas
thrust member
pressure
liquid
liquid pressure
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
GB931060A
Inventor
Edward Claude Shakespea Clench
William James Senior
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.)
Automotive Products PLC
Original Assignee
Automotive Products PLC
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 Automotive Products PLC filed Critical Automotive Products PLC
Priority to GB931060A priority Critical patent/GB895873A/en
Publication of GB895873A publication Critical patent/GB895873A/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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/12—Mills with at least two discs or rings and interposed balls or rollers mounted like ball or roller bearings
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/212—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being accumulators
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50554—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure downstream of the pressure control means, e.g. pressure reducing valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
    • F15B2211/5151—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and a directional control valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7053—Double-acting output members
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/76—Control of force or torque of the output member

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Abstract

895,873. Ball-and-ring mills. AUTOMOTIVE PRODUCTS CO. Ltd. Feb. 23, 1961 [March 16, 1960], No. 9310/60. Class 59. [Also in Groups XXVI and XXIX] A ram-and-cylinder unit 19 for loading a thrust member 12 of a ball mill comprises a liquid chamber and a gas chamber separated by a movable separator 25 and arranged so that the total volume of the chambers is increased by extension of the unit and vice versa, a liquid pressure source 29 connected to the liquid chamber and operative to maintain a substantially constant value therein, and a pressure gas storage means 31 connected to the gas chamber through valve means 32 preventing flow of gas back to the storage means, the gas pressure being at least equal to the liquid pressure. The thrust member 12 is urged against the balls 11 of the mill by a plurality of pairs of units 19 connected to the thrust member by levers 14, 17. Each unit has a ram 18 in the form of a sleeve which is disposed in a cylinder 20 and receives the separator in the form of a piston 25, a ring 26 limiting the movement of the piston towards the closed end of the cylinder. The liquid pressure source 29 is connected to ports 27 in the cylinders to extend the units and the gas storage means 31 is connected by a reducing and non-return valve 32 to ports 28 so that gas pressure acts on one side of the piston and liquid pressure on the other. The liquid pressure is maintained at a constant value of, say, 1,000 lbs/sq. in. and the valve 32 is adjusted so that the pressure in the gas chamber is at a greater value, say 1,050 1bs/sq. in. The units thus act to load the thrust member 12 and in the event of the passage of a large fragment in the mill, the thrust member moves the rams into the cylinders and moves the pistons away from the rings 26 to compress the gas and absorb the extra load.
GB931060A 1960-03-16 1960-03-16 Improvements in or relating to loading means for maintaining dynamic loading on annular thrust members Expired GB895873A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB931060A GB895873A (en) 1960-03-16 1960-03-16 Improvements in or relating to loading means for maintaining dynamic loading on annular thrust members

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB931060A GB895873A (en) 1960-03-16 1960-03-16 Improvements in or relating to loading means for maintaining dynamic loading on annular thrust members

Publications (1)

Publication Number Publication Date
GB895873A true GB895873A (en) 1962-05-09

Family

ID=9869513

Family Applications (1)

Application Number Title Priority Date Filing Date
GB931060A Expired GB895873A (en) 1960-03-16 1960-03-16 Improvements in or relating to loading means for maintaining dynamic loading on annular thrust members

Country Status (1)

Country Link
GB (1) GB895873A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4572152A (en) * 1981-10-07 1986-02-25 Olofsson Sigfrid M Air guns with floating piston received in compensating chamber which is formed in main piston
WO2005019657A2 (en) * 2003-08-19 2005-03-03 Ftl Seals Technology Limited Resilient loading device
WO2005094998A1 (en) * 2004-03-30 2005-10-13 Officine Meccaniche Di Ponzano Veneto S.P.A. Crusher for rubble and similar

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4572152A (en) * 1981-10-07 1986-02-25 Olofsson Sigfrid M Air guns with floating piston received in compensating chamber which is formed in main piston
WO2005019657A2 (en) * 2003-08-19 2005-03-03 Ftl Seals Technology Limited Resilient loading device
WO2005019657A3 (en) * 2003-08-19 2005-05-12 Ftl Seals Technology Ltd Resilient loading device
WO2005094998A1 (en) * 2004-03-30 2005-10-13 Officine Meccaniche Di Ponzano Veneto S.P.A. Crusher for rubble and similar

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