TR201708846A2 - Hi̇droli̇k kaldiricilar i̇çi̇n bi̇r kontrol valfi̇ - Google Patents

Hi̇droli̇k kaldiricilar i̇çi̇n bi̇r kontrol valfi̇ Download PDF

Info

Publication number
TR201708846A2
TR201708846A2 TR2017/08846A TR201708846A TR201708846A2 TR 201708846 A2 TR201708846 A2 TR 201708846A2 TR 2017/08846 A TR2017/08846 A TR 2017/08846A TR 201708846 A TR201708846 A TR 201708846A TR 201708846 A2 TR201708846 A2 TR 201708846A2
Authority
TR
Turkey
Prior art keywords
line
fluid
valve
control valve
cylinder
Prior art date
Application number
TR2017/08846A
Other languages
English (en)
Inventor
Nak Samet
Tezcan Olcay
Savaşçi Özgür
Original Assignee
Hema Enduestri Anonim Sirketi
Hema Endüstri̇ Anoni̇m Şi̇rketi̇
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 Hema Enduestri Anonim Sirketi, Hema Endüstri̇ Anoni̇m Şi̇rketi̇ filed Critical Hema Enduestri Anonim Sirketi
Priority to TR2017/08846A priority Critical patent/TR201708846A2/tr
Publication of TR201708846A2 publication Critical patent/TR201708846A2/tr
Priority to CN201880039172.6A priority patent/CN110753489A/zh
Priority to BR112019026418-3A priority patent/BR112019026418A2/pt
Priority to EP18840799.3A priority patent/EP3638935A4/en
Priority to PCT/TR2018/050117 priority patent/WO2019027393A2/en
Priority to US16/621,759 priority patent/US20200141429A1/en

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
    • 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
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • 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
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
    • A01B63/02—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors
    • A01B63/10—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means
    • 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
    • F15B13/021—Valves for interconnecting the fluid chambers of an actuator
    • 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
    • F15B13/027—Check valves
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • 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
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check valves
    • 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
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-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
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
    • F15B2211/3057—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve having two valves, one for each port of a double-acting output member
    • 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
    • F15B2211/30—Directional control
    • F15B2211/35—Directional control combined with flow control
    • F15B2211/351—Flow control by regulating means in feed line, i.e. meter-in control
    • 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
    • F15B2211/30—Directional control
    • F15B2211/35—Directional control combined with flow control
    • F15B2211/353—Flow control by regulating means in return line, i.e. meter-out control
    • 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
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41527—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member 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
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41581—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member and a return line
    • 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
    • F15B2211/40—Flow control
    • F15B2211/42—Flow control characterised by the type of actuation
    • F15B2211/428—Flow control characterised by the type of actuation actuated by fluid pressure
    • 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
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50536—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using unloading valves controlling the supply pressure by diverting fluid to the return line
    • 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
    • F15B2211/5157—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and a return line
    • 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
    • F15B2211/7052—Single-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
    • F15B2211/75—Control of speed of the output member
    • 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
    • F15B2211/761—Control of a negative load, i.e. of a load generating hydraulic energy

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Check Valves (AREA)
  • Control Of Transmission Device (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

Buluş bir gövde (10), gövde (10) içerisine akışkan gönderen en az bir ana giriş hattı (11), ana giriş hattından (11) gelen akışkanın bir silindir hattına (14) geçişini kontrol etmek üzere bir çek valfe (23) sahip traktörler üzerinde kullanılan hidrolik kaldırıcılar için bir kontrol valfi ile ilgilidir. Şekil 1

Description

TEKNIK ALAN Bulus traktörlerde hidrolik kaldiricilarin kontrolünde kullanilmak 'üzere kontrol valfi ile ilgilidir. ÖNCEKI TEKNIK Traktörlerde genellikle traktör'ün arka kisminda hidrolik kaldiricilar bulunmaktadir. Hidrolik kaldiricilarin kaldirma ve indirme fonksiyonlarini kontrol etmek üzere kontrol valfleri bulunmaktadir. Kontrol valflerinin çalismasi sirasinda kaldirma ve indirme hareketinin baslangiçlari ve de nötr pozisyonda kalislar büyük hassasiyet ve önem tasimaktadir. Bu hassasiyeti saglamak 'üzere mevcut sistemlerde U86105613 basvurusunda görülecegi 'üzere pilot uyarili karmasik sistemler uygulanmaktadir. Sonuç olarak, yukarida bahsedilen tüm sorunlar, ilgili teknik alanda bir yenilik yapmayi zorunlu hale getirmistir. BULUSUN KISA AÇIKLAMASI Mevcut bulus yukarida bahsedilen dezavantajlari ortadan kaldirmak ve ilgili teknik alana yeni avantajlar getirmek üzere, bir kontrol valfi ile ilgilidir. Bulusun bir amaci, bilesen sayisi azaltilmis ve kontrolü kolaylastirilmis bir kontrol valfi ortaya koymaktir. Yukarida bahsedilen ve asagidaki detayli anlatimdan ortaya çikacak tüm amaçlari gerçeklestirmek 'üzere mevcut bulus, bir gövde, gövde içerisine akiskan gönderen en az bir ana giris hatti. ana giris hattindan gelen akiskanin bir silindir hattina geçisini kontrol etmek üzere bir çek valfe sahip traktörler üzerinde kullanilan hidrolik kaldiricilar için bir kontrol valfidir. Buna göre gövde içerisinde saglanan bir ana sürgünün konumuna bagli olarak; ana giris hattindan gelen akiskani bir tank hattina aktaran en az bir bosaltma valfi, silindir hattinda bulunan akiskani tank hattina aktaran en az bir indirme valfi içermektedir. Bulusun mümkün bir yapilanmasi, ana giris hattinda akiskan basinci önceden belirlenen bir deger üzerine çiktiginda akiskani tank hattina gönderen en az bir akis kontrol valfi içermektedir. Bulusun mümkün bir yapilanmasi, silindir hattinda akiskan basinci önceden belirlenen bir deger üzerine çiktiginda akiskani tank hattina gönderen en az bir sok valf içermektedir. Bulusun mümkün bir yapilanmasi, silindir hatti ile indirme valfi arasinda saglanan en az bir kisici kilitleme valfi içermektedir. SEKILIN KISA AÇIKLAMASI Sekil 1' de bulus konusu kontrol valfinin nötr konumda temsili bir sematik görünümü verilmistir. Sekil 2' de bulus konusu kontrol valfinin kaldirma konumunda temsili bir sematik görünümü verilmistir. Sekil 3' de bulus konusu kontrol valfinin indirme konumunda temsili bir sematik görünümü verilmistir. BULUSUN DETAYLI AÇIKLAMASI Bu detayli açiklamada bulus konusu kontrol valfi sadece konunun daha iyi anlasilmasina yönelik hiçbir sinirlayici etki olusturmayacak örneklerle açiklanmaktadir. Bulus konusu kontrol valfi bir gövdeye (10) sahiptir. Gövde (10) içerisinde saglanan en az bir ana sürgü (20) bulunmaktadir. Ana sürgü (20) bir indirme valfi (25) ile iliskilendirilmektedir. Gövde (10) içerisine akiskan girisini saglamak üzere en az bir ana giris hatti (11) bulunmaktadir. Ana giris hattindan (11) kontrol valfi içerisine sürekli olarak akiskan gönderilmektedir. Ana giris hatti (11) gövde (10) içerisinde bir birinci hatta (111) ve bir ikinci hatta (112) ayrilmakta ve birinci hat (111) bir silindir hattina (14), ikinci hat (112) bir bosaltma valfine (21) dogru yönelmektedir. Silindir hattina (14) giden birinci hatta (111) önce ana sürgü (20) ile sonrasinda bir çek valf (23) ile akiskan geçisi kontrol edilmektedir. Ikinci hatta (112) akiskanin karsisina çikan bosaltma valfi (21) akiskanin ilerlemesini ya da bir tank hattina (12) geçisini saglamaktadir. Ikinci hat (112) bosaltma valfinin (21) devaminda ana sürgü (20) tarafindan kesilmekte ve akiskan geçisi denetlenmektedir. Ikinci hat (112) ana sürgüyü geçtikten sonra iki hatta ayrilmaktadir. Hatlardan biri birinci hattan (111) gelen akiskan akis kontrol valfinin (26) arka tarafina geçerken bir yandan da akis kontrol valfinin (26) ön kismina ulasmaktadir. Olusan basinç farklarindan dolayi açilan akis kontrol valfini (26) geçen akiskan bir tank hattina (12) bosalmaktadir. Birinci hat (111) ile silindir hatti (14) arasinda saglanan en az bir çek valf (23) vardir. Çek valf (23) ile iliskilendirilen en az bir kisici kilitleme valfi (24) bulunmaktadir. Kisici kilitleme valfi (24) ile indirme valfi (25) arasinda saglanan bir indirme hatti (13) bulunmaktadir. Sekil 1'de görülecegi üzere kontrol valfinin nötr pozisyonunda ana giris hattindan (11) gelen akiskan birinci hat (111) üzerinden akis kontrol valfi (21) arkasina ve çek valfe (23) kadar ilerlemektedir. Diger taraftan akis kontrol valfinin (26) önüne kadar uzanmakta ancak ana sürgü (20) tarafindan bosaltma valfinin (21) arkasina dogru ilerlemesi engellemektedir. Dolayisi ile bosaltma valfi (21) ikinci hattin (112) önünü açacak sekilde kalmaktadir. Bu sayede ana giris hattindan (11) gelen akiskan en kolay yol olarak ikinci hat (112) üzerinden tank hattina (12) geçmektedir. Bu durum ayni zamanda birinci hat (111) üzerinde basincin yükselmesini engellemekte ve akiskan çek valfi (23) geçememektedir. Bu sirada silindir hatti (14) içerisindeki akiskan çek valf (23) sebebi ile birinci hatta (111) dogru geçemez ve kisici kilitleme valfi (24) içerisi ile indirme valfi (25) arasindaki bir indirme hatti (13) içerisinde hapsolur. Dolayisi ile silindir hatti (14) ile iliskili silindirin konumu degismeden kalmaktadir. Ana sürgü (20) kaldirma konumuna getirildiginde bulus konusu kontrol valfi sekil 2ideki konuma gelmektedir. Detayli bir anlatimla, birinci hat (111) 'üzerinden gelen akiskan ikinci hat (112) üzerinde ana sürgün'ün yolu açmasi ile bosaltma valfinin (21) arka tarafina dolmaktadir. Bu sayede bosaltma valfi (21) arkadaki yay kuvveti ile ikinci hattan (112) tank hattina (12) akiskan geçisini kapatmaktadir. Birinci hat (111) içerisindeki akiskan tank hattina (12) ulasamadigi için basinç yeteri kadar yükselmekte ve çek valfi (23) iterek silindir hattina (14) ulasmaktadir. Bu sayede silindir hatti (14) ile iliskili silindir kaldirma hareketi meydana getirmektedir. Silindir hattinda (14) kaldirilan yük sebebi ile fazla basinç olustugunda akiskan silindir hatti (14) ile iliskilendirilen bir sok valfinden (22) geçerek tank hattina (12) ulasmakta ve sistem basinci düsürülmektedir. Ayrica kaldirma sirasinda kaldirmanin durdurulacagi pozisyonlara yaklasildiginda sert duruslari engellenmek üzere akisin yavaslatilmasi istenilmektedir. Bunu saglamak 'üzere akis kontrol valfi (26) devreye girerek ana giris hattindan (11) gelen akiskanin bir kismini tank hattina (12) ileterek silindir hattina (14) gönderilen akiskan miktarini azaltmaktadir. Ana sürgü (20) indirme konumuna getirildiginde bulus konusu kontrol valfi sekil 3'deki konuma gelmektedir. Akiskan ana giris hattindan (11) girerek nötr pozisyon ile ayni sekilde hareket ederek tank hattina (12) geçmektedir. Diger taraftan ana sürg'ü (20) indirme valfinin (25) indirme hattindan (13) gelen akiskani geçirecek sekilde hareket ettirmektedir. Bu sayede silindir hattindaki (14) akiskan kisici kilitleme valfinden (24) ve indirme valfinden (25) geçerek tank hattina (12) gelmektedir. Dolayisi ile silindir ve silindir hattindaki (14) akiskan tank hattina (12) dogru ilerlemektedir. Bu sayede indirme hareketi gerçeklesmektedir. Kaldirma ya da indirme hareketi tamamlandiginda ana sürg'i'i (20) mm pozisyonuna getirilmektedir. Bu sayede ana giris hattindan (11) gelen akiskan tank hattina (12) gönderilmekte ve silindir hattina (14) daha fazla akiskan gönderilmesi engellenmektedir. Ayrica çek valf (23) ve indirme valfinin (25) akiskan geçisini engellemesi sayesinde silindir hattindaki (14) akiskan miktarinin azalmasi engellenmekte ve dolayisi ile silindir ile iliskilendirilen kaldiricinin konumunun sabit kalmasi saglanmaktadir. Kontrol valfi içerisinde saglanan akis kontrol valfi (26) sayesinde kaldirma sirasinda ön ve arkasindaki akiskan basinç farki istenilenin 'üzerine çiktiginda akis kontrol valfi (26) akiskanin tank hattina (12) geçmesini saglamaktadir. Akiskan tank hattina (12) geçtiginde basinç farki düsmekte ve akis kontrol valfi (26) tekrar akiskan geçisini engeller konuma gelmektedir. Kisici kilitleme valfi (24) indirme esnasinda yagin geçecegi alani azaltip arttirarak inis hizini ayarlamaya ve sonuna kadar kilitlendiginde silindir içerisindeki yagin indirme valfi (25) indirmeye geçirilse de orada kalmasini saglayarak indirme yapilmamasini saglamaktadir. Bulusun koruma kapsami ekte verilen istemlerde belirtilmis olup kesinlikle bu detayli anlatimda örnekleme amaciyla anlatilanlarla sinirli tutulamaz. Zira teknikte uzman bir kisinin, bulusun ana temasindan ayrilmadan yukarida anlatilanlar isiginda benzer yapilanmalar ortaya koyabilecegi açiktir. TR TR

Claims (1)

1.ISTEMLER Bir gövde (10), gövde (10) içerisine akiskan gönderen en az bir ana giris hatti (11), ana giris hattindan (11) gelen akiskanin bir silindir hattina (14) geçisini kontrol etmek 'üzere bir çek valfe (23) sahip traktörler 'üzerinde kullanilan hidrolik kaldiricilar için bir kontrol valfi olup özelligi; gövde (10) içerisinde saglanan bir ana sürgünün (20) konumuna bagli olarak; ana giris hattindan (11) gelen akiskani bir tank hattina (12) aktaran en az bir bosaltma valfi (21 ), silindir hattinda (14) bulunan akiskani tarik hattina (12) aktaran en az bir indirme valfi (25) içermesidir. Istem 1'e göre bir kontrol valfi olup özelligi; ana giris hattinin (11) kollari olan birinci hat (111) ve ikinci hat (112) arasindaki akiskan basinç farki önceden belirlenen bir deger üzerine çiktiginda akiskani tank hattina (12) gönderen en az bir akis kontrol valfi (26) içermesidir. Istem 1'e göre bir kontrol valfi olup özelligi; silindir hattinda (14) akiskan basinci önceden belirlenen bir deger üzerine çiktiginda akiskani tank hattina (12) gönderen en az bir sok valf (22) içermesidir. istem 1'e göre bir kontrol valfi olup özelligi; silindir hatti (14) ile indirme valfi (25) arasinda saglanan en az bir kisici kilitleme valfi (24) içermesidir. TR TR
TR2017/08846A 2017-06-15 2017-06-15 Hi̇droli̇k kaldiricilar i̇çi̇n bi̇r kontrol valfi̇ TR201708846A2 (tr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
TR2017/08846A TR201708846A2 (tr) 2017-06-15 2017-06-15 Hi̇droli̇k kaldiricilar i̇çi̇n bi̇r kontrol valfi̇
CN201880039172.6A CN110753489A (zh) 2017-06-15 2018-03-26 用于液压升降器的控制阀
BR112019026418-3A BR112019026418A2 (pt) 2017-06-15 2018-03-26 válvula de controle para elevadores hidráulicos.
EP18840799.3A EP3638935A4 (en) 2017-06-15 2018-03-26 CONTROL VALVE FOR HYDRAULIC LIFTING DEVICES
PCT/TR2018/050117 WO2019027393A2 (en) 2017-06-15 2018-03-26 CONTROL VALVE FOR HYDRAULIC LIFTING DEVICES
US16/621,759 US20200141429A1 (en) 2017-06-15 2018-03-26 A control valve for hydraulic lifters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TR2017/08846A TR201708846A2 (tr) 2017-06-15 2017-06-15 Hi̇droli̇k kaldiricilar i̇çi̇n bi̇r kontrol valfi̇

Publications (1)

Publication Number Publication Date
TR201708846A2 true TR201708846A2 (tr) 2017-09-21

Family

ID=65232971

Family Applications (1)

Application Number Title Priority Date Filing Date
TR2017/08846A TR201708846A2 (tr) 2017-06-15 2017-06-15 Hi̇droli̇k kaldiricilar i̇çi̇n bi̇r kontrol valfi̇

Country Status (6)

Country Link
US (1) US20200141429A1 (tr)
EP (1) EP3638935A4 (tr)
CN (1) CN110753489A (tr)
BR (1) BR112019026418A2 (tr)
TR (1) TR201708846A2 (tr)
WO (1) WO2019027393A2 (tr)

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5422068A (en) * 1977-07-19 1979-02-19 Kawasaki Heavy Ind Ltd Control valve for machine
JPS5690105A (en) * 1979-12-24 1981-07-22 Kayaba Ind Co Ltd Controlling valve for farm working machinery of agricultural tractor
JPS58149401A (ja) * 1982-02-26 1983-09-05 Kayaba Ind Co Ltd 農用トラクタの作業機コントロ−ル弁
JPS62188803A (ja) * 1986-02-10 1987-08-18 Kawasaki Heavy Ind Ltd 作業機用コントロ−ル弁
DE3739736A1 (de) * 1987-11-24 1989-06-08 Bosch Gmbh Robert Steuergeraet fuer einen hydraulischen arbeitskreis
JPH01150202U (tr) * 1988-04-08 1989-10-17
IT1292919B1 (it) * 1997-05-13 1999-02-11 Mita Oleodinamica Spa Distributore per un sollevatore idraulico a posizione e sforzo controllati per trattori e macchine agricole.
JP2007139148A (ja) * 2005-11-22 2007-06-07 Kubota Corp 作業機の油圧装置
JP2007263142A (ja) * 2006-03-27 2007-10-11 Toyota Industries Corp 油圧制御装置
DE102009031493A1 (de) * 2009-07-02 2011-01-05 Robert Bosch Gmbh Ventilanordnung
CN202203201U (zh) * 2011-08-26 2012-04-25 山东弘宇机械有限公司 液压分配器
EP2876306B1 (en) * 2012-07-19 2018-11-07 Volvo Construction Equipment AB Flow control valve for construction machinery
US10202985B2 (en) * 2012-10-19 2019-02-12 Hema Endustri Anonim Sirketi System preventing pressured oil leakage to cylinder line in control valve systems with flow divider
CN106015146B (zh) * 2016-07-18 2018-09-25 山东弘宇农机股份有限公司 一种内置液压分配器

Also Published As

Publication number Publication date
EP3638935A2 (en) 2020-04-22
WO2019027393A2 (en) 2019-02-07
WO2019027393A3 (en) 2019-04-11
BR112019026418A2 (pt) 2020-07-21
US20200141429A1 (en) 2020-05-07
EP3638935A4 (en) 2021-08-04
CN110753489A (zh) 2020-02-04

Similar Documents

Publication Publication Date Title
DE4105459A1 (de) Hydraulische steuervorrichtung
US9797117B2 (en) Fluid pressure control device
DE102004012382B4 (de) Hydraulische Anordnung
US10308280B2 (en) Hydraulic steering
CN204041597U (zh) 一种温度补偿阀及具有温度补偿功能的起重机伸缩系统
DE102012101231A1 (de) Hydrostatisches Antriebssystem
DE102004019327B4 (de) Verfahren zur Steuerung eines Schwenkauslegers und Vorrichtung zur Steuerung desselben
US10132059B2 (en) Fluid pressure control device
US4417502A (en) Load supporting hydraulic circuit with emergency automatic load restraint
EP3312436A1 (en) Anti-rupture tube device
CN104533863A (zh) 起重机回转系统控制阀
EP1218241A1 (en) Hydraulic system for aircraft landing gear
TR201708846A2 (tr) Hi̇droli̇k kaldiricilar i̇çi̇n bi̇r kontrol valfi̇
MX2015004964A (es) Sistema de prevencion de fuga de aceite a presion a la linea del cilindro en sistemas de valvulas de control con divisor de flujo.
GB1599196A (en) Control apparatus for an hydraulic working implement
MXPA02006828A (es) Sistema de control dle suspension de vehiculo.
US20160116059A1 (en) Variable displacement pump and gearbox control system
US10619753B2 (en) Pilot type switching valve
US2868174A (en) Selector valve with snubbing action
US20170219042A1 (en) Damping Valve Comprising A Pressure Relief Valve
KR101737017B1 (ko) 프론트로더 유압장치
US10065473B2 (en) Control device of a vehicle suspension
EP2157321B1 (de) Einschraubverschraubung
CN104692254A (zh) 起重机防二次提升下滑系统
EP2157319A1 (de) Hydrauliksteuerung für einen Hydromotor