CN104728506A - Digital pilot-operated cartridge overflow valve - Google Patents

Digital pilot-operated cartridge overflow valve Download PDF

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Publication number
CN104728506A
CN104728506A CN201510129476.XA CN201510129476A CN104728506A CN 104728506 A CN104728506 A CN 104728506A CN 201510129476 A CN201510129476 A CN 201510129476A CN 104728506 A CN104728506 A CN 104728506A
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CN
China
Prior art keywords
electromagnet
ring
main valve
amplifier
module
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.)
Granted
Application number
CN201510129476.XA
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Chinese (zh)
Other versions
CN104728506B (en
Inventor
邢科礼
高施琛
吕永福
冷景平
张永祥
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University of Shanghai for Science and Technology
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University of Shanghai for Science and Technology
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Priority to CN201510129476.XA priority Critical patent/CN104728506B/en
Publication of CN104728506A publication Critical patent/CN104728506A/en
Application granted granted Critical
Publication of CN104728506B publication Critical patent/CN104728506B/en
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Classifications

    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/20—Excess-flow valves
    • F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
    • F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
    • F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
    • F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
    • 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
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0025—Electrical or magnetic means
    • F16K37/005—Electrical or magnetic means for measuring fluid parameters

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)

Abstract

The invention relates to a digital pilot-operated cartridge overflow valve. The digital pilot-operated cartridge overflow valve comprises a communication interface which is installed on a display screen, and the display screen is fixed on a controller through a slot; the controller is connected with a D/A module through the slot, and the D/A module is connected with a proportional amplifier through a wire; the amplifier is fixed on an electromagnet through an inserting row, the electromagnet directly makes contact with a pilot-operated valve element spring, and an oil blocking seal ring is installed between the amplifier and the electromagnet; the controller, the D/A module, the proportional amplifier and the electromagnet are installed on an upper sleeve, and an O-shaped ring is installed on the upper sleeve. According to the digital pilot-operated cartridge overflow valve, the overflow pressure is set through a digital keyboard to enable the set overflow to be more accurate and safer; the overflow pressure is set through remote programming, a user can adjust the overflow pressure at any time according to the actual condition where a hydraulic circuit is located, therefore, the system design and use are more flexible, and the problem that once the overflow pressure is set, discretionary adjustment can not be perform is solved.

Description

Digital guide's plug-in mounting relief valve
Technical field
The present invention relates to a kind of pressure valve, particularly a kind of digital guide's plug-in mounting relief valve.
Background technique
Plug-in mounting relief valve, as the pressure controlled valve in hydrovalve, has irreplaceable effect to the normal work of hydraulic system, and it is applied to almost in any one oil hydraulic circuit.Its Main Function is the overflow by valve port, makes unnecessary fluid flow back to fuel tank, thus the pressure in hydraulic control system or loop is a steady state value or prevents hydraulic system from transshipping, and plays pressure regulator valve and safety valve.The method of tradition setting relief valve pressure is manual tune pressure regulating screw, valve core spring pretightening force is increased or reduces, thus the oil pressure relief of setting relief valve.This kind of method Problems existing is because operator's experience, level differ, make set up pressure and inaccuracy, and set up oil pressure relief time, system often will be loaded into more high pressure, makes set pressure process there is certain potential safety hazard.
Summary of the invention
The object of the invention is to the defect existed for prior art, provide a kind of digital guide's plug-in mounting relief valve, accurately can set oil pressure relief, available remote programming mode instead of workman's hand labour, has more Security.
For achieving the above object, the present invention adopts following technical proposals:
A kind of digital guide's plug-in mounting relief valve, it comprises a communication interface, and described communication interface is installed on a display screen, and described display screen is fixing on the controller by slot; Described controller is by slot and D/A model calling, and described D/A module is connected with proportional amplifier by wire; Described amplifier is fixed on electromagnet by insert row, electromagnet directly with pilot valve spring contact, keep off oil seal circle and be arranged between described amplifier and electromagnet; Described controller, D/A module, proportional amplifier, electromagnet are arranged in upper bush, described upper bush are provided with an O type circle, the 2nd O type circle; Described pilot valve spring fitting is in pilot valve, and described pilot valve is located by back-up ring, is fixed on pedestal; Filter screen is located by filter screen back-up ring, and described filter screen, filter screen back-up ring are arranged on and screw in cover; First main valve plug spring upper end is located by filtering back-up ring, and lower end is located by main valve plug, is arranged on main valve plug; Second main valve plug spring, upper end is by screwing in cover location, and lower end is by base stand location, and described screw-in cover, the second main valve plug spring, main valve plug are arranged in lower sleeve, is sealed between lower sleeve and screw-in overlap by seal ring; Described lower sleeve is located by hole Steel Cable Baffle Ring, is connected with pedestal and shell, fixes by tightly locking screw; Shell is provided with outside seal circle.
The outside linking number word keyboard of described communication interface, sets oil pressure relief by numeric keyboard; And connect computer, remote programmable setting oil pressure relief.
Compared with prior art, the present invention has following outstanding substantive distinguishing features and significant advantage:
Apparatus of the present invention set oil pressure relief by numeric keyboard, make the overflow that sets more accurately, safety; Set oil pressure relief by remote programmable, user can adjust oil pressure relief at any time according to actual state residing for oil hydraulic circuit, makes system and use have more flexibility, solves once set the problem that oil pressure relief can not adjust arbitrarily; By the oil pressure relief of display screen display setting, there is certain help for hydraulic system debugging and maintenance and inspection.
Accompanying drawing explanation
Fig. 1 is digital guide's plug-in mounting relief valve sectional drawing.
Embodiment
Below in conjunction with accompanying drawing, specific embodiments of the invention are further described.
As shown in Figure 1, a kind of digital guide's plug-in mounting relief valve, comprise a communication interface 15, linking number word keyboard or set oil pressure relief by remote programmable, described communication interface 15 is installed on display screen 14, described display screen 14 can display setting oil pressure relief and be fixed on controller 13 by slot.Described controller 13 is connected with D/A module 12 by slot, and described D/A module 12 is connected with proportional amplifier 11 by wire; Described amplifier 11 is fixed on electromagnet 10 by insert row 18, and electromagnet 10 directly contacts with pilot valve spring 9.Controller 13 reads setup pressure value, converts digital quantity signal to analog signals by D/A module 12, and analog signals produces electromagnetic force through proportional amplifier 11 by insert row 18 DM 10, produces certain pretightening force to pilot valve spring 9.Gear oil seal circle 19 is arranged between described amplifier 11 and electromagnet 10; Described controller 13, D/A module 12, proportional amplifier 11, electromagnet 10 are arranged in upper bush 16, described upper bush 16 are provided with O type circle the 20, a 2nd O type circle 22.Described pilot valve spring 9 is arranged in pilot valve 23, and described pilot valve 23 is located by back-up ring 8, is fixed on pedestal 1; Filter screen 6 is located by filter screen back-up ring 5, and described filter screen 6, filter screen back-up ring 5 are arranged on and screw in cover 4; First main valve plug spring 3 upper end is located by filtering back-up ring 5, and lower end is located by main valve plug 2, is arranged on main valve plug 2; Second main valve plug spring 26, upper end is located by screwing in cover 4, and lower end is located by pedestal 1, and described screw-in cover 4, second main valve plug spring 26, main valve plug 2 are arranged in lower sleeve 24.X mouth is for controlling mouth, and fluid enters pilot valve 23 back cavity; P mouth fluid, through damping hole, enters pilot valve 23 ante-chamber, and along with P mouth pressure increases until reach setting pressure, the pressure entering ante-chamber overcomes the pretightening force of X mouth pressure and pilot valve spring 9, opens pilot stage.After pilot valve is opened, P mouth pressure and first drain stream act on simultaneously, overcome the pretightening force of the first main valve plug spring 3, second main valve plug spring 26 and the active force of pilot stage, back down main valve plug 2, realize overflow.Sealed by seal ring 25 between lower sleeve 24 and screw-in cover 4; Described lower sleeve 24 is located by hole Steel Cable Baffle Ring 7, is connected with pedestal 1 and shell, fixes by tightly locking screw 17; Shell is provided with outside seal circle 21.
The outside linking number word keyboard of described communication interface 15, sets oil pressure relief by numeric keyboard; And connect computer, remote programmable setting oil pressure relief.

Claims (2)

1. digital guide's plug-in mounting relief valve, is characterized in that, comprises a communication interface (15), and described communication interface (15) is arranged on display screen (14), and described display screen (14) is fixed on controller (13) by slot; Described controller (13) is connected with D/A module (12) by slot, and described D/A module (12) is connected with proportional amplifier (11) by wire; Described amplifier (11) is fixed on electromagnet (10) by insert row (18), and electromagnet (10) directly contacts with pilot valve spring (9), and gear oil seal circle (19) is arranged between described amplifier (11) and electromagnet (10); Described controller (13), D/A module (12), proportional amplifier (11), electromagnet (10) are arranged in upper bush (16), described upper bush (16) are provided with an O type circle (20), the 2nd O type circle (22); Described pilot valve spring (9) is arranged in pilot valve (23), and described pilot valve (23), by back-up ring (8) location, is fixed on pedestal (1); Filter screen (6) is by filter screen back-up ring (5) location, and described filter screen (6), filter screen back-up ring (5) are arranged on and screw in cover (4); First main valve plug spring (3) upper end is located by filtering back-up ring (5), and lower end is located by main valve plug (2), is arranged on main valve plug (2); Second main valve plug spring (26), upper end is located by screwing in cover (4), lower end is located by pedestal (1), described screw-in cover (4), the second main valve plug spring (26), main valve plug (2) are arranged in lower sleeve (24), and lower sleeve (24) and screw-in overlap between (4) and sealed by seal ring (25); Described lower sleeve (24) is located by hole Steel Cable Baffle Ring (7), is connected with pedestal (1) and shell, fixes by tightly locking screw (17); Shell is provided with outside seal circle (21).
2. digital guide's plug-in mounting relief valve according to claim 1, is characterized in that, the outside linking number word keyboard of described communication interface (15), sets oil pressure relief by numeric keyboard; And connect computer, remote programmable setting oil pressure relief.
CN201510129476.XA 2015-03-24 2015-03-24 Digital guide inserts overflow valve Active CN104728506B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510129476.XA CN104728506B (en) 2015-03-24 2015-03-24 Digital guide inserts overflow valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510129476.XA CN104728506B (en) 2015-03-24 2015-03-24 Digital guide inserts overflow valve

Publications (2)

Publication Number Publication Date
CN104728506A true CN104728506A (en) 2015-06-24
CN104728506B CN104728506B (en) 2017-03-15

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105952953A (en) * 2016-05-19 2016-09-21 北京控制工程研究所 Response time-adjustable pilot electromagnetic valve structure
CN111594499A (en) * 2020-05-28 2020-08-28 宁波华液机器制造有限公司 Inverse proportion overflow valve
CN114688322A (en) * 2022-04-28 2022-07-01 靖江市新博液压件有限公司 High-efficient type overflow valve and overflow valve dismantlement structure

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201461568U (en) * 2009-05-15 2010-05-12 上海豪高机电科技有限公司 Full-thread cartridge high-flow digital hydraulic speed control valve
CN202545395U (en) * 2012-03-23 2012-11-21 山东泰丰液压股份有限公司 Pilot electrohydraulic proportional overflow valve
CN103233936A (en) * 2013-04-28 2013-08-07 华侨大学 Insertion-structure-based pilot-operated electric-hydraulic proportional spill valve
CN203257779U (en) * 2013-05-06 2013-10-30 北京华德液压工业集团有限责任公司 Pilot-operated type proportional overflow valve
DE102012212826A1 (en) * 2012-07-23 2014-01-23 Robert Bosch Gmbh Poppet valve assembly used in regions of mobile working machine e.g. excavator, has main stage that is closed and opened according to control of flow regions by positioning of hydraulic position-controlled precursor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201461568U (en) * 2009-05-15 2010-05-12 上海豪高机电科技有限公司 Full-thread cartridge high-flow digital hydraulic speed control valve
CN202545395U (en) * 2012-03-23 2012-11-21 山东泰丰液压股份有限公司 Pilot electrohydraulic proportional overflow valve
DE102012212826A1 (en) * 2012-07-23 2014-01-23 Robert Bosch Gmbh Poppet valve assembly used in regions of mobile working machine e.g. excavator, has main stage that is closed and opened according to control of flow regions by positioning of hydraulic position-controlled precursor
CN103233936A (en) * 2013-04-28 2013-08-07 华侨大学 Insertion-structure-based pilot-operated electric-hydraulic proportional spill valve
CN203257779U (en) * 2013-05-06 2013-10-30 北京华德液压工业集团有限责任公司 Pilot-operated type proportional overflow valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105952953A (en) * 2016-05-19 2016-09-21 北京控制工程研究所 Response time-adjustable pilot electromagnetic valve structure
CN105952953B (en) * 2016-05-19 2018-03-09 北京控制工程研究所 A kind of response time adjustable pilot solenoid valve structure
CN111594499A (en) * 2020-05-28 2020-08-28 宁波华液机器制造有限公司 Inverse proportion overflow valve
CN114688322A (en) * 2022-04-28 2022-07-01 靖江市新博液压件有限公司 High-efficient type overflow valve and overflow valve dismantlement structure

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Publication number Publication date
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