GB1468184A - Multi-functional fluid control valve assembly - Google Patents

Multi-functional fluid control valve assembly

Info

Publication number
GB1468184A
GB1468184A GB1440274A GB1440274A GB1468184A GB 1468184 A GB1468184 A GB 1468184A GB 1440274 A GB1440274 A GB 1440274A GB 1440274 A GB1440274 A GB 1440274A GB 1468184 A GB1468184 A GB 1468184A
Authority
GB
United Kingdom
Prior art keywords
valve
drill
line
pressure
spring
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
GB1440274A
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.)
Australian Iron and Steel Pty Ltd
Original Assignee
Australian Iron and Steel Pty Ltd
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 Australian Iron and Steel Pty Ltd filed Critical Australian Iron and Steel Pty Ltd
Publication of GB1468184A publication Critical patent/GB1468184A/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
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • F15B11/15—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor with special provision for automatic return
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/14—Control devices for the reciprocating piston
    • B25D9/26—Control devices for adjusting the stroke of the piston or the force or frequency of impact thereof
    • B25D9/265—Control devices for adjusting the stroke of the piston or the force or frequency of impact thereof with arrangements for automatic stopping when the tool is lifted from the working face or suffers excessive bore resistance
    • 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
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/20—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating members

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Earth Drilling (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

1468184 Fluid-pressure control circuits AUSTRALIAN IRON & STEEL Pty Ltd 1 April 1974 [12 April 1973] 14402/74 Heading F1P [Also in Division F2] In the circuit shown in Fig. 1, a motor 9, which drives a rock-drill, is fed through a valve 6, a line 18 and a line 12 in a flow-divider 5 whilst a drill-feed motor 10 is driven through a valve 8 and a line 13. An adjustable orifice 22 determines the flow in the line 13. This orifice is in a valve 17, Fig. 2, and is normally held at a maximum by a spring 23. When the drill, driven by, the motor 9, encounters hard rock, the pressure in line 18 rises This rise is fed via line 19 to a piston 20 of the valve 17 and acts to progressively close the orifice 22 thus decreasing the rate at which the drill is fed into the rock. An anti-stall valve 24, Figs. 1, 4, has an orifice needle 33 which is lifted from its seat to return fluid to the reservoir if the pressure in a passage 36 rises above a pre-set limit due to the drill engaging hard rock. A screw 35 provides the pre-set load on a spring 30A. Valves 6, 7, 8 are held in position by detent devices and valve 8 is automatically returned to its retract position when the drill feed reaches the end of its travel thereby causing a rise in pressure in the feed line 13A. When the drill feed is fully retracted an overload valve 39 opens. Safety relief valves 40, 41 are provided in case the feed rate is not reduced. A ram 11 locks the drill pillar between roof and floor in a mine. Fig. 3 shows the spool valve 8 with the detent device 37 and relief valve 39. A member 61 is forced against a seat 62 by a spring 63, the pressure of which is adjusted by a screw 64. When the motor 10 has reached the end of its travel, pressure rise through a bleed 78 lifts member 61 off its seat so that spring 52 can move the spool 45 to the null position. Relief valve 39 is a poppet valve. The anti-stall valve is also incorporated. A pressure rise in inlet 99, due to the drill approaching stall conditions, acts on piston 93 to open valvemember 94 against a spring 97. Screw 101 adjusts the latter.
GB1440274A 1973-04-12 1974-04-01 Multi-functional fluid control valve assembly Expired GB1468184A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPB297673 1973-04-12

Publications (1)

Publication Number Publication Date
GB1468184A true GB1468184A (en) 1977-03-23

Family

ID=3765670

Family Applications (3)

Application Number Title Priority Date Filing Date
GB363076A Expired GB1468185A (en) 1973-04-12 1974-04-01 Multi-functional fluid control valve assembly
GB363176A Expired GB1468186A (en) 1973-04-12 1974-04-01 Multi-functional fluid control valve assembly
GB1440274A Expired GB1468184A (en) 1973-04-12 1974-04-01 Multi-functional fluid control valve assembly

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB363076A Expired GB1468185A (en) 1973-04-12 1974-04-01 Multi-functional fluid control valve assembly
GB363176A Expired GB1468186A (en) 1973-04-12 1974-04-01 Multi-functional fluid control valve assembly

Country Status (4)

Country Link
DE (1) DE2417161A1 (en)
FR (1) FR2225640B1 (en)
GB (3) GB1468185A (en)
ZA (1) ZA742081B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4523886A (en) * 1982-01-13 1985-06-18 Towmotor Corporation Container handler with programmed electro-hydraulic control circuit
US4664017A (en) * 1984-03-19 1987-05-12 General Signal Corporation Hydraulic control system and valve
CN108086906A (en) * 2018-01-29 2018-05-29 唐山市丰润区东方液压机电研究所 A kind of Fully-hydraulic drilling rig progressively pressue device and method
CN110259747A (en) * 2019-06-20 2019-09-20 苏州跃翔智能科技有限公司 A kind of multilevel control valve

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2425293A1 (en) * 1978-05-10 1979-12-07 Hydraulique B G Double acting hydraulic jack control for drilling machine - has spool valve operating in three pressure stages, and non-return pilot valve controlling flow from piston rod chamber
DE3203465A1 (en) * 1982-02-03 1983-08-11 Klöckner-Humboldt-Deutz AG, 5000 Köln PRINTING MEDIUM CIRCUIT, IN PARTICULAR FOR A MOWING MACHINE
FR2522626A1 (en) * 1982-03-02 1983-09-09 Morillon Ets SCREW EXTRACTOR STARTING ASSISTANCE DEVICE PROVIDING STORAGE CELLS FOR PULVERULENT OR GRANULAR PRODUCTS
EP0221852A3 (en) * 1985-11-07 1988-11-23 Fritz Haug AG Device for working relatively hard building materials
FR2714743B1 (en) * 1993-12-31 1996-02-23 Jeantil Sa Hydraulic regulation device for the rotation of two drive shafts, in particular a movable bottom and a untangling device of a silage unloader or the like.
CN102022394B (en) * 2010-12-31 2013-04-17 济南液压泵有限责任公司 Integral manual multi-way reversing valve
CN116624459B (en) * 2023-07-19 2023-10-20 山河智能装备股份有限公司 Self-adaptive pressurizing hydraulic system and construction equipment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4523886A (en) * 1982-01-13 1985-06-18 Towmotor Corporation Container handler with programmed electro-hydraulic control circuit
US4664017A (en) * 1984-03-19 1987-05-12 General Signal Corporation Hydraulic control system and valve
CN108086906A (en) * 2018-01-29 2018-05-29 唐山市丰润区东方液压机电研究所 A kind of Fully-hydraulic drilling rig progressively pressue device and method
CN110259747A (en) * 2019-06-20 2019-09-20 苏州跃翔智能科技有限公司 A kind of multilevel control valve
CN110259747B (en) * 2019-06-20 2024-02-13 苏州跃翔智能科技有限公司 Multistage control valve

Also Published As

Publication number Publication date
FR2225640A1 (en) 1974-11-08
GB1468185A (en) 1977-03-23
DE2417161A1 (en) 1974-10-31
FR2225640B1 (en) 1977-10-14
GB1468186A (en) 1977-03-23
ZA742081B (en) 1975-03-26

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee