GB1294565A - Improvements in or relating to apparatus for converting a rectilinear motion to a pivotal motion about an axisyy - Google Patents

Improvements in or relating to apparatus for converting a rectilinear motion to a pivotal motion about an axisyy

Info

Publication number
GB1294565A
GB1294565A GB408170A GB408170A GB1294565A GB 1294565 A GB1294565 A GB 1294565A GB 408170 A GB408170 A GB 408170A GB 408170 A GB408170 A GB 408170A GB 1294565 A GB1294565 A GB 1294565A
Authority
GB
United Kingdom
Prior art keywords
valve
motor
line
bracket
fluid
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
GB408170A
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.)
Navistar Inc
Original Assignee
International Harverster Corp
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 International Harverster Corp filed Critical International Harverster Corp
Publication of GB1294565A publication Critical patent/GB1294565A/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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/32—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/425—Drive systems for dipper-arms, backhoes or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

1294565 Hydraulic actuators INTERNATIONAL HARVESTER CO 28 Jan 1970 [28 Jan 1969] 4081/70 Heading F1P [Also in Division E1] Two linear hydraulic motors 20,20<SP>1</SP> Fig.2 serve to swing in either direction and about a vertical pivotal axis 13 a bracket 10 Fig.1 and hence a boom N, dipper stick D and shovel R of a back hoe and each motor is pivotally connected at the head end at spaced axes 40,40<SP>1</SP> to a support stand S provided with said pivot 13 and at the rod end to a common axis 14 of bracket 10; the motors being controlled by a directional flow valve V and two variable metering spool valves 200,200<SP>1</SP> each pivotally attached at 42,42<SP>1</SP> to its associated motor 20, 20<SP>1</SP> and at 40,41<SP>1</SP> to the support S thereby controlling fluid-flow in accordance with the position of its associated motor and one motor being driven during the initial stage of the swing- ing motion of bracket 10 and the other motor being driven during the closing stage of said motion. A starting spool valve 200 is fully open and 200<SP>1</SP> fully closed as shown in Fig.4. Thus valve 200 connects a pressure supply line 60 to a service line 64 leading to the head of motor 20 thereby extending the rod 21; fluid being exhausted through a line 65, a cross bore 306 in a poppet 304, past relief valve 300 into a chamber 240 a crossbore 211 in the spool, a chamber 235, a port 101 and a return line 62. At the same time pressure in supply line 61 is blocked by a check valve 251<SP>1</SP> of closed valve 200<SP>1</SP> and fluid from the rod end of motor 20<SP>1</SP> which is being extended by its mechanical connection with motor 20 is exhausted through line 65<SP>1</SP> the cross bore of poppet 304<SP>1</SP>, past relief valve 300<SP>1</SP> to chamber 240<SP>1</SP>, and spool groove 212<SP>1</SP> to port 102<SP>1</SP> and hence either through line 64<SP>1</SP> to the head end of motor 20<SP>1</SP> or through return line 63. As motor 20 extends, valve 200 partly closes to obturate the exhaust whilst as motor 20<SP>1</SP> retracts valve 200<SP>1</SP> partly opens to allow access of pressure fluid in line 61 to service line 65<SP>1</SP> whilst line 64<SP>1</SP> is connected to the return line 63. As motor 20<SP>1</SP> retracts valve 200<SP>1</SP> fully opens whilst valve 200 is partly open and at the end of the pivotal movement of bracket 10 valve 200<SP>1</SP> remains fully open and valve 200 fully closed.
GB408170A 1969-01-28 1970-01-28 Improvements in or relating to apparatus for converting a rectilinear motion to a pivotal motion about an axisyy Expired GB1294565A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79463769A 1969-01-28 1969-01-28

Publications (1)

Publication Number Publication Date
GB1294565A true GB1294565A (en) 1972-11-01

Family

ID=25163212

Family Applications (1)

Application Number Title Priority Date Filing Date
GB408170A Expired GB1294565A (en) 1969-01-28 1970-01-28 Improvements in or relating to apparatus for converting a rectilinear motion to a pivotal motion about an axisyy

Country Status (4)

Country Link
CA (1) CA924997A (en)
DE (1) DE2003814A1 (en)
FR (1) FR2029583A1 (en)
GB (1) GB1294565A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2293614A1 (en) * 1974-12-04 1976-07-02 Havre Chantiers Mechanism swinging arm through large angle - has two actuator cylinders operated in sequence to share swinging action
CA1028289A (en) * 1975-03-10 1978-03-21 J.I. Case Company Swing mechanism for backhoe
AU502182B2 (en) * 1975-03-17 1979-07-19 Massey-Ferguson Inc Hydraulic swing mechanism
US4341501A (en) * 1980-08-22 1982-07-27 J. I. Case Company Hydraulic control valve circuit for a swing mechanism
US4419040A (en) * 1981-12-10 1983-12-06 J. I. Case Company Backhoe swing mechanism
US4389153A (en) * 1981-12-10 1983-06-21 J. I. Case Company Backhoe swing mechanism

Also Published As

Publication number Publication date
CA924997A (en) 1973-04-24
FR2029583A1 (en) 1970-10-23
DE2003814A1 (en) 1970-07-30

Similar Documents

Publication Publication Date Title
GB1412659A (en) Valves
US2890683A (en) Fluid actuated control valve means for fluid motors
GB1380371A (en) Machine having a telescopic boom
GB1294565A (en) Improvements in or relating to apparatus for converting a rectilinear motion to a pivotal motion about an axisyy
GB1206381A (en) Anti-cavitation means for hydraulic motors
GB1045785A (en) Hydraulic valving system
US3608859A (en) Controllable check valve
JPS6452985A (en) Door switchgear
ES359639A1 (en) Hydraulic damping means
US3685540A (en) Fluid flow controlling device for reversible fluid motors
CN108755809A (en) A kind of telescopic excavator shovel head of double-cylinder hydraulic
GB1462846A (en) Hydraulic control valve
JPH0138965B2 (en)
US2576359A (en) Hoist control mechanism
GB698801A (en) Improvements in or relating to control systems for reversible hydraulic motors
CN208899558U (en) A kind of telescopic excavator shovel head of double-cylinder hydraulic
US3732785A (en) Fluid pressure apparatus
GB1192120A (en) Pilot Operated Valve for a Reversible Fluid Motor
CN106195344B (en) Flow equilibrium proportional control valve
GB1099140A (en) Dual engine controls
SU1293288A1 (en) Twin-circuit hydraulic drive of excavator
US2505527A (en) Valve control mechanism for hydraulic circuit
GB1487287A (en) Valve for controlling a reversible rotary hydraulic motor
GB944366A (en) Hydraulically controlled air cylinder
JPS62155852A (en) Hydraulic control apparatus for treatment chair

Legal Events

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