GB2605451B - Hydraulic cylinder cushioning - Google Patents

Hydraulic cylinder cushioning Download PDF

Info

Publication number
GB2605451B
GB2605451B GB2104754.3A GB202104754A GB2605451B GB 2605451 B GB2605451 B GB 2605451B GB 202104754 A GB202104754 A GB 202104754A GB 2605451 B GB2605451 B GB 2605451B
Authority
GB
United Kingdom
Prior art keywords
hydraulic cylinder
cylinder cushioning
cushioning
hydraulic
cylinder
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.)
Active
Application number
GB2104754.3A
Other versions
GB2605451A (en
GB202104754D0 (en
Inventor
Lakshminarayanan Rameshkrishnan
Steven Goslovich Kurt
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.)
Caterpillar Global Mining LLC
Original Assignee
Caterpillar Global Mining LLC
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 Caterpillar Global Mining LLC filed Critical Caterpillar Global Mining LLC
Priority to GB2104754.3A priority Critical patent/GB2605451B/en
Publication of GB202104754D0 publication Critical patent/GB202104754D0/en
Priority to AU2022201886A priority patent/AU2022201886A1/en
Publication of GB2605451A publication Critical patent/GB2605451A/en
Application granted granted Critical
Publication of GB2605451B publication Critical patent/GB2605451B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1447—Pistons; Piston to piston rod assemblies
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2271—Actuators and supports therefor and protection therefor
    • 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
    • E02F3/308—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 outwardly
    • 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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
    • E02F9/2214—Arrangements for controlling the attitude of actuators, e.g. speed, floating function for reducing the shock generated at the stroke end
    • 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
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • F15B15/222—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having a piston with a piston extension or piston recess which throttles the main fluid outlet as the piston approaches its end position

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Actuator (AREA)
  • Braking Arrangements (AREA)
  • Fluid-Damping Devices (AREA)
GB2104754.3A 2021-04-01 2021-04-01 Hydraulic cylinder cushioning Active GB2605451B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2104754.3A GB2605451B (en) 2021-04-01 2021-04-01 Hydraulic cylinder cushioning
AU2022201886A AU2022201886A1 (en) 2021-04-01 2022-03-18 Hydraulic cylinder cushioning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2104754.3A GB2605451B (en) 2021-04-01 2021-04-01 Hydraulic cylinder cushioning

Publications (3)

Publication Number Publication Date
GB202104754D0 GB202104754D0 (en) 2021-05-19
GB2605451A GB2605451A (en) 2022-10-05
GB2605451B true GB2605451B (en) 2023-07-26

Family

ID=75883682

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2104754.3A Active GB2605451B (en) 2021-04-01 2021-04-01 Hydraulic cylinder cushioning

Country Status (2)

Country Link
AU (1) AU2022201886A1 (en)
GB (1) GB2605451B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160160893A1 (en) * 2013-07-26 2016-06-09 Kyb-Ys Co., Ltd. Fluid pressure cylinder
US9784292B1 (en) * 2016-08-30 2017-10-10 Caterpillar Inc. Pin assembly for a piston of a hydraulic cylinder
KR20180071770A (en) * 2016-12-20 2018-06-28 디와이파워 주식회사 Cushion apparatus for hydraulic cylinder

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160160893A1 (en) * 2013-07-26 2016-06-09 Kyb-Ys Co., Ltd. Fluid pressure cylinder
US9784292B1 (en) * 2016-08-30 2017-10-10 Caterpillar Inc. Pin assembly for a piston of a hydraulic cylinder
KR20180071770A (en) * 2016-12-20 2018-06-28 디와이파워 주식회사 Cushion apparatus for hydraulic cylinder

Also Published As

Publication number Publication date
AU2022201886A1 (en) 2022-10-20
GB2605451A (en) 2022-10-05
GB202104754D0 (en) 2021-05-19

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