CN104006184A - Signal acquisition valve block assembly - Google Patents

Signal acquisition valve block assembly Download PDF

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Publication number
CN104006184A
CN104006184A CN201410206671.3A CN201410206671A CN104006184A CN 104006184 A CN104006184 A CN 104006184A CN 201410206671 A CN201410206671 A CN 201410206671A CN 104006184 A CN104006184 A CN 104006184A
Authority
CN
China
Prior art keywords
main oil
valve block
oil way
pump
spring seat
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
CN201410206671.3A
Other languages
Chinese (zh)
Inventor
余丙才
张建军
李震
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.)
ANHUI BOYI FLUID POWER TRANSMISSION JOINT-STOCK Co Ltd
Original Assignee
ANHUI BOYI FLUID POWER TRANSMISSION JOINT-STOCK 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 ANHUI BOYI FLUID POWER TRANSMISSION JOINT-STOCK Co Ltd filed Critical ANHUI BOYI FLUID POWER TRANSMISSION JOINT-STOCK Co Ltd
Priority to CN201410206671.3A priority Critical patent/CN104006184A/en
Publication of CN104006184A publication Critical patent/CN104006184A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • F16K11/07Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0416Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor with means or adapted for load sensing

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Safety Valves (AREA)
  • Multiple-Way Valves (AREA)

Abstract

The invention relates to a signal acquisition valve block assembly which comprises a valve block body. A transverse main oil way is formed in the valve block body, a valve element is arranged in the main oil way in a sliding mode, an upper oil way is communicated with the upper portion of the main oil way, a lower oil way is communicated with the lower portion of the main oil way, a transition connector connected with a system control oil PK port is installed at the front end of the main oil way, a transition connector connected with a pump PLS port is installed at the upper end of the upper oil way, a transition connector connected with an oil returning box is installed at the lower end of the lower oil way, the back end of the main oil way is communicated with a main oil cavity, and the signal acquisition valve block assembly works when a pump is small in flow and the outlet pressure is maintained in the load sensitive setting differential pressure delta P state; when a system has loads, the PK pressure is increased, the valve element is pushed to conduct reversing, a PLS control opening of the pump is communicated with a load pressure signal Pi opening, and corresponding flow can be provided by the pump according to the actual requirement of the system.

Description

Signals collecting valve block assembly
Technical field
The present invention relates to valve block assembly field, specifically belong to signals collecting valve block assembly.
Background technique
Signals collecting valve piece is to use needs for construction machinery hydraulic system, and its major function is need to select the break-make of signal oil sources rationally to control Variable plunger pump according to system, has reached the effective control to the whole work cycle of hydraulic system.
Summary of the invention
The object of this invention is to provide a kind of signals collecting valve block assembly, pump maintains load-sensitive in small flow and outlet pressure and sets under pressure differential deltap P state and work; When system has load, now PK pressure increases, and promotes spool commutation, and the PLS of pump controls mouth and connects with load pressure signal Pi mouth, and pump can provide corresponding flow according to the actual demand of system.
Technical solution of the present invention is as follows:
Signals collecting valve block assembly, include valve block, in valve block, have horizontal main oil gallery, in main oil gallery, slide and be furnished with spool, main oil gallery top is linked with oil duct, below is linked with lower oil duct, main oil gallery front end is provided with system and controls the transit joint that oily PK mouth is connected, upper oil duct upper end is provided with the transit joint being connected with pump PLS mouth, lower oil duct lower end is provided with the transit joint being connected with oil sump tank, main oil gallery rear end is linked with main oil pocket, in main oil pocket, be combined with swivel nut, swivel nut outer end is screwed with adjusting screw, in swivel nut, be sliding combined with the rear spring seat that is pressed on adjusting screw, the bulb overhead of spool front end has front spring seat, between front spring seat and rear spring seat, be equipped with big spring, little spring, spool is provided with first step, second step, the 3rd step, on valve block, have side oil duct, side oil duct is connected with shuttle valve group outlet Pi mouth.
Described swivel nut, rear spring seat, transit joint are set with seal ring outward.
Working principle of the present invention and working procedure:
Signals collecting valve piece of the present invention is mainly used in load-sensitive hydraulic system or positive flow hydraulic system, and this valve block assembly is different from general shuttle valve group at present.Its load pressure signal gathering by shuttle valve group acts on the Pi mouth of reversing valve assembly, and the left end of change-over valve core acts on the active force that control signal PK produces, and right-hand member acts on the spring force of big spring and little spring effect; When system zero load is not worked, PK pressure is very little, is not enough to promote spool commutation, and now the PLS of pump controls and mouthful communicates with return opening, and pump maintains under load-sensitive setting pressure differential deltap P state and works in small flow and outlet pressure; When system has load, now PK pressure increases, and promotes spool commutation, and the PLS of pump controls mouth and connects with load pressure signal Pi mouth, and pump can provide corresponding flow according to the actual demand of system.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is signals collecting valve block system schematic diagram of the present invention.
Embodiment
Referring to accompanying drawing, signals collecting valve block assembly, include valve block 1, in valve block 1, have horizontal main oil gallery 2, the interior slip of main oil gallery 2 is furnished with spool 3, main oil gallery 2 tops are linked with oil duct 4, below is linked with lower oil duct 5, main oil gallery 2 front ends are provided with system and control the transit joint 6 that oily PK mouth is connected, upper oil duct 4 upper ends are provided with the transit joint 7 being connected with pump PLS mouth, lower oil duct 5 lower ends are provided with the transit joint 8 being connected with oil sump tank, main oil gallery 2 rear ends are linked with main oil pocket 9, in main oil pocket 9, be combined with swivel nut 10, swivel nut 10 outer ends are screwed with adjusting screw 11, in swivel nut 10, be sliding combined with the rear spring seat 12 that is pressed on adjusting screw 11, the bulb overhead of spool 3 front ends has front spring seat 13, between front spring seat 13 and rear spring seat 12, be equipped with big spring 14, little spring 15, spool 3 is provided with first step 16, second step 17, the 3rd step 18, on valve block, have side oil duct 19, side oil duct 19 is connected with shuttle valve group outlet Pi mouth, swivel nut, rear spring seat, transit joint is set with seal ring outward.
Label in Fig. 2: shuttle valve assembly 20, reversing valve assembly 21, load-reacting pump 22.

Claims (2)

1. signals collecting valve block assembly, include valve block, it is characterized in that, in valve block, have horizontal main oil gallery, in main oil gallery, slide and be furnished with spool, main oil gallery top is linked with oil duct, below is linked with lower oil duct, main oil gallery front end is provided with system and controls the transit joint that oily PK mouth is connected, upper oil duct upper end is provided with the transit joint being connected with pump PLS mouth, lower oil duct lower end is provided with the transit joint being connected with oil sump tank, main oil gallery rear end is linked with main oil pocket, in main oil pocket, be combined with swivel nut, swivel nut outer end is screwed with adjusting screw, in swivel nut, be sliding combined with the rear spring seat that is pressed on adjusting screw, the bulb overhead of spool front end has front spring seat, between front spring seat and rear spring seat, be equipped with big spring, little spring, spool is provided with first step, second step, the 3rd step, on valve block, have side oil duct, side oil duct is connected with shuttle valve group outlet Pi mouth.
2. signals collecting valve block assembly according to claim 1, is characterized in that, described swivel nut, rear spring seat, transit joint are set with seal ring outward.
CN201410206671.3A 2014-05-15 2014-05-15 Signal acquisition valve block assembly Pending CN104006184A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410206671.3A CN104006184A (en) 2014-05-15 2014-05-15 Signal acquisition valve block assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410206671.3A CN104006184A (en) 2014-05-15 2014-05-15 Signal acquisition valve block assembly

Publications (1)

Publication Number Publication Date
CN104006184A true CN104006184A (en) 2014-08-27

Family

ID=51366991

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410206671.3A Pending CN104006184A (en) 2014-05-15 2014-05-15 Signal acquisition valve block assembly

Country Status (1)

Country Link
CN (1) CN104006184A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104358678A (en) * 2014-10-23 2015-02-18 浙江赛克思液压有限公司 Leak-proof power matching control valve for hydraulic pump
CN104533774A (en) * 2014-12-03 2015-04-22 安徽博一流体传动股份有限公司 Variable displacement piston pump for loading machine
CN105156730A (en) * 2015-09-17 2015-12-16 浙江松乔气动液压有限公司 Fast connection module valve
CN108252977A (en) * 2018-02-05 2018-07-06 陈艳艳 A kind of oil path distribution valve for large-flow hydraulic system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100929421B1 (en) * 2007-10-22 2009-12-03 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 Heavy Equipment Hydraulic Control Valve
CN101749447A (en) * 2008-12-03 2010-06-23 徐州重型机械有限公司 Flow control valve
CN201972984U (en) * 2010-12-30 2011-09-14 章信才 Hydraulic differential pressure control valve
CN202851491U (en) * 2012-09-19 2013-04-03 浙江高宇液压机电有限公司 Load-sensitive multi-way valve used in loader variable system
CN203297181U (en) * 2013-04-03 2013-11-20 长沙中联消防机械有限公司 System adopting load sensitivity control
CN203584943U (en) * 2013-11-26 2014-05-07 浙江海宏液压科技股份有限公司 Change-over valve and load sensitive system with same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100929421B1 (en) * 2007-10-22 2009-12-03 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 Heavy Equipment Hydraulic Control Valve
CN101749447A (en) * 2008-12-03 2010-06-23 徐州重型机械有限公司 Flow control valve
CN201972984U (en) * 2010-12-30 2011-09-14 章信才 Hydraulic differential pressure control valve
CN202851491U (en) * 2012-09-19 2013-04-03 浙江高宇液压机电有限公司 Load-sensitive multi-way valve used in loader variable system
CN203297181U (en) * 2013-04-03 2013-11-20 长沙中联消防机械有限公司 System adopting load sensitivity control
CN203584943U (en) * 2013-11-26 2014-05-07 浙江海宏液压科技股份有限公司 Change-over valve and load sensitive system with same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104358678A (en) * 2014-10-23 2015-02-18 浙江赛克思液压有限公司 Leak-proof power matching control valve for hydraulic pump
CN104533774A (en) * 2014-12-03 2015-04-22 安徽博一流体传动股份有限公司 Variable displacement piston pump for loading machine
CN105156730A (en) * 2015-09-17 2015-12-16 浙江松乔气动液压有限公司 Fast connection module valve
CN108252977A (en) * 2018-02-05 2018-07-06 陈艳艳 A kind of oil path distribution valve for large-flow hydraulic system

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PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
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Application publication date: 20140827