CN108149146A - A kind of direct drive type electrohydraulic valve core of servo valve centering positions leaf spring - Google Patents

A kind of direct drive type electrohydraulic valve core of servo valve centering positions leaf spring Download PDF

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Publication number
CN108149146A
CN108149146A CN201711441786.0A CN201711441786A CN108149146A CN 108149146 A CN108149146 A CN 108149146A CN 201711441786 A CN201711441786 A CN 201711441786A CN 108149146 A CN108149146 A CN 108149146A
Authority
CN
China
Prior art keywords
leaf spring
drive type
direct drive
valve core
servo valve
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.)
Pending
Application number
CN201711441786.0A
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Chinese (zh)
Inventor
郭爱华
张可强
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.)
Suzhou Belnad Railroad Equipment Co Ltd
Original Assignee
Suzhou Belnad Railroad Equipment Co 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 Suzhou Belnad Railroad Equipment Co Ltd filed Critical Suzhou Belnad Railroad Equipment Co Ltd
Priority to CN201711441786.0A priority Critical patent/CN108149146A/en
Publication of CN108149146A publication Critical patent/CN108149146A/en
Pending legal-status Critical Current

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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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/18—Leaf springs

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Springs (AREA)

Abstract

The present invention is a kind of direct drive type electrohydraulic valve core of servo valve centering positioning leaf spring, is made of the stamping forming reed of two panels, support hollow connecting rod, fastening nut, wherein reed includes following composition by weight percentage：C：0.71 0.73%, Si：2.23 2.25%, Mn：0.56 0.58%, P：≤ 0.025%, S：≤ 0.025%, Cr：0.41 0.43%, Ni：0.37 0.39%, Cu：0.15 0.17%, surplus is Fe.The direct drive type electrohydraulic valve core of servo valve centering positioning leaf spring of the present invention, has higher yield strength, tensile strength and elongation percentage.

Description

A kind of direct drive type electrohydraulic valve core of servo valve centering positions leaf spring
Technical field
The present invention relates to a kind of leaf spring, specifically a kind of direct drive type electrohydraulic valve core of servo valve centering positioning is board-like Spring.
Background technology
Servo valve is in the widely used hydraulic pressure core executive component of automation field, and effect is mainly by automatically controlled letter The hydraulic operation of hydraulic pressure execution unit number is converted into, controls direction and the speed of hydraulic operation.Such as：Hydraulic pressure control in hot press Component processed, the control element of hoisting machinery oil cylinder, steel rolling mill's hydraulic control cylinder element etc., as long as with hydraulic servocontrol Use servo valve.Direct-driving electric hydraulic servo directly drives spool displacement using permanent magnet type linear come motor, realizes valve flow Accurate control.Spool displacement is generally in 1mm or so, during to ensure that permanent magnet type linear carrys out motor free state, connects the horse of spool It is located among two permanent magnets in left and right up to armature, need to be installed in motor armature and valve core link rod one end to middle leaf spring.It is existing The centering of direct drive type electrohydraulic valve core of servo valve positioning leaf spring, reed mechanics poor-performing.
Invention content
The technical problems to be solved by the invention are, for above shortcoming of the existing technology, to propose a kind of direct-drive type The centering of electro-hydraulic servo valve core positions leaf spring, has higher yield strength, tensile strength and elongation percentage.
The present invention solve more than technical problem technical solution be：
A kind of direct drive type electrohydraulic valve core of servo valve centering positions leaf spring, empty by the stamping forming reed of two panels, support Heart connecting rod, fastening nut composition, wherein reed include following composition by weight percentage：C：0.71-0.73%, Si：2.23- 2.25%, Mn：0.56-0.58%, P：≤ 0.025%, S：≤ 0.025%, Cr：0.41-0.43%, Ni：0.37-0.39%, Cu：0.15-0.17%, surplus are Fe.
The technical solution that further limits of the present invention is：
Aforementioned direct drive type electrohydraulic valve core of servo valve centering positioning leaf spring, wherein reed include by weight percentage with Lower composition：C：0.71%, Si：2.23%, Mn：0.56%, P：0.025%, S：0.025%, Cr：0.41%, Ni：0.37%, Cu：0.15%, surplus is Fe.
Aforementioned direct drive type electrohydraulic valve core of servo valve centering positioning leaf spring, wherein reed include by weight percentage with Lower composition：C：0.72%, Si：2.24%, Mn：0.57%, P：0.02%, S：0.02%, Cr：0.42%, Ni：0.38%, Cu： 0.16%, surplus is Fe.
Aforementioned direct drive type electrohydraulic valve core of servo valve centering positioning leaf spring, wherein reed include by weight percentage with Lower composition：C：0.73%, Si：2.25%, Mn：0.58%, P：0.015%, S：0.015%, Cr：0.43%, Ni：0.39%, Cu：0.17%, surplus is Fe.
The beneficial effects of the invention are as follows：Direct drive type electrohydraulic valve core of servo valve centering positioning leaf spring of the present invention has higher Yield strength, tensile strength and elongation percentage.
Specific embodiment
Embodiment 1
The present embodiment is a kind of direct drive type electrohydraulic valve core of servo valve centering positioning leaf spring, by the stamping forming spring of two panels Piece, support hollow connecting rod, fastening nut composition, wherein reed include following composition by weight percentage：C：0.71%, Si： 2.23%, Mn：0.56%, P：0.025%, S：0.025%, Cr：0.41%, Ni：0.37%, Cu：0.15%, surplus is Fe.
Embodiment 2
The present embodiment is a kind of direct drive type electrohydraulic valve core of servo valve centering positioning leaf spring, by the stamping forming spring of two panels Piece, support hollow connecting rod, fastening nut composition, wherein reed include following composition by weight percentage：C：0.72%, Si： 2.24%, Mn：0.57%, P：0.02%, S：0.02%, Cr：0.42%, Ni：0.38%, Cu：0.16%, surplus is Fe.
Embodiment 3
The present embodiment is a kind of direct drive type electrohydraulic valve core of servo valve centering positioning leaf spring, by the stamping forming spring of two panels Piece, support hollow connecting rod, fastening nut composition, wherein reed include following composition by weight percentage：C：0.73%, Si： 2.25%, Mn：0.58%, P：0.015%, S：0.015%, Cr：0.43%, Ni：0.39%, Cu：0.17%, surplus is Fe.
The performance of 1-3 of the embodiment of the present invention such as table 1：
Table 1
Serial number Yield strength MPa Tensile strength MPa Elongation percentage, %
Embodiment 1 1390 1660 9.0
Embodiment 2 1380 1640 9.5
Embodiment 3 1420 1680 8.5
In addition to the implementation, the present invention can also have other embodiment.It is all to use equivalent substitution or equivalent transformation shape Into technical solution, all fall within the present invention claims protection domain.

Claims (4)

1. a kind of direct drive type electrohydraulic valve core of servo valve centering positions leaf spring, hollow by the stamping forming reed of two panels, support Connecting rod, fastening nut composition, it is characterised in that：The reed includes following composition by weight percentage：C：0.71-0.73%, Si：2.23-2.25%, Mn：0.56-0.58%, P：≤ 0.025%, S：≤ 0.025%, Cr：0.41-0.43%, Ni：0.37- 0.39%, Cu：0.15-0.17%, surplus are Fe.
2. direct drive type electrohydraulic valve core of servo valve centering as described in claim 1 positions leaf spring, it is characterised in that：The spring Piece includes following composition by weight percentage：C：0.71%, Si：2.23%, Mn：0.56%, P：0.025%, S：0.025%, Cr： 0.41%, Ni：0.37%, Cu：0.15%, surplus is Fe.
3. direct drive type electrohydraulic valve core of servo valve centering as described in claim 1 positions leaf spring, it is characterised in that：The spring Piece includes following composition by weight percentage：C：0.72%, Si：2.24%, Mn：0.57%, P：0.02%, S：0.02%, Cr： 0.42%, Ni：0.38%, Cu：0.16%, surplus is Fe.
4. direct drive type electrohydraulic valve core of servo valve centering as described in claim 1 positions leaf spring, it is characterised in that：The spring Piece includes following composition by weight percentage：C：0.73%, Si：2.25%, Mn：0.58%, P：0.015%, S：0.015%, Cr： 0.43%, Ni：0.39%, Cu：0.17%, surplus is Fe.
CN201711441786.0A 2017-12-27 2017-12-27 A kind of direct drive type electrohydraulic valve core of servo valve centering positions leaf spring Pending CN108149146A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711441786.0A CN108149146A (en) 2017-12-27 2017-12-27 A kind of direct drive type electrohydraulic valve core of servo valve centering positions leaf spring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711441786.0A CN108149146A (en) 2017-12-27 2017-12-27 A kind of direct drive type electrohydraulic valve core of servo valve centering positions leaf spring

Publications (1)

Publication Number Publication Date
CN108149146A true CN108149146A (en) 2018-06-12

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CN201711441786.0A Pending CN108149146A (en) 2017-12-27 2017-12-27 A kind of direct drive type electrohydraulic valve core of servo valve centering positions leaf spring

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113528930A (en) * 2020-04-21 2021-10-22 江苏金力弹簧科技有限公司 Stamped spring piece and production process thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103003461A (en) * 2010-08-30 2013-03-27 株式会社神户制钢所 Steel wire material for high-strength spring which has excellent wire-drawing properties and process for production thereof, and high-strength spring
CN105349881A (en) * 2015-11-13 2016-02-24 浙江荣鑫带钢有限公司 Preparing method of strip steel for volute spiral spring
CN106834909A (en) * 2015-12-04 2017-06-13 现代自动车株式会社 Superhigh intensity spring steel
CN106947920A (en) * 2015-09-22 2017-07-14 Posco公司 The spring steel and its manufacture method of excellent in fatigue characteristics

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103003461A (en) * 2010-08-30 2013-03-27 株式会社神户制钢所 Steel wire material for high-strength spring which has excellent wire-drawing properties and process for production thereof, and high-strength spring
CN106947920A (en) * 2015-09-22 2017-07-14 Posco公司 The spring steel and its manufacture method of excellent in fatigue characteristics
CN105349881A (en) * 2015-11-13 2016-02-24 浙江荣鑫带钢有限公司 Preparing method of strip steel for volute spiral spring
CN106834909A (en) * 2015-12-04 2017-06-13 现代自动车株式会社 Superhigh intensity spring steel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113528930A (en) * 2020-04-21 2021-10-22 江苏金力弹簧科技有限公司 Stamped spring piece and production process thereof

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Application publication date: 20180612