CN205533496U

CN205533496U - Proportion valves

Info

Publication number: CN205533496U
Application number: CN201620043548.9U
Authority: CN
Inventors: 张生学
Original assignee: Dalian Yuandong Yongchang Automation Engineering Co Ltd
Current assignee: Dalian Yuandong Yongchang Automation Engineering Co Ltd
Priority date: 2016-01-18
Filing date: 2016-01-18
Publication date: 2016-08-31
Anticipated expiration: 2026-01-18

Abstract

The utility model provides a proportion valves, includes valve body, reaction force overflow valve, effort overflow valve, cartridge formula check valve, pressure measuring connector. The reaction force overflow valve is connected with the valve body, and answer with the 9# hole and the 8# pore pair of valve body respectively in its P hole and T hole, and the effort overflow valve is connected with the valve body, and its P hole and T hole respectively should with the 12# hole and the 11# pore pair of valve body. If reaction force overflow valve draining hole, the other end and the jogged joint of valve body 14# are connected to first connecting pipe one end. If effort overflow valve draining hole, the other end and the jogged joint of valve body 6# are connected to second connecting pipe one end. Pressure measuring connector is four, respectively 18#, 19#, 22#, the 23# screw hole of threaded connection valve body. Cartridge formula check valve is installed at valve body 2# downtheholely, and the excessive oil flow mouth and effort hydro -cylinder of reaction force overflow valve are connected to cartridge formula check valve, backward can not open. The utility model discloses a cartridge formula check valve, with the check valve integration in the valve body, compact structure, pipeline are less and simple.

Description

A kind of proportioning valve group

Technical field

This utility model relates to valve technology field, particularly relates to a kind of proportioning valve group.

Background technology

Proportioning valve group be coal pulverizer load hydraulic system core assembled part, be realize load hydraulic system active force and The pressure of counteracting force controls immediately, connects pressure transmitter and manometric pile-up valve group.Medium-speed pulverizer loads hydraulic pressure system System is the most widely used coal pulverizer hydraulic system, and the hydraulic principle that each manufacturer uses is basically identical, but It is to have nothing in common with each other in the design of valve body.Most producers be the check valve of proportioning valve group is placed in valve body outside, use pipe Formula check valve, integrated level is low, and connecting line is many and complicated.Proportioning valve group of the present utility model uses plug-in one-way valve, will be single Being integrated in valve body to valve, compact conformation, pipeline is few and simple.

Utility model content

The technical problems to be solved in the utility model is to provide one and is integrated in valve body by check valve, compact conformation, pipe Road is few and simple proportioning valve group.

The technical scheme is that

A kind of proportioning valve group, connects including valve body, counteracting force overflow valve, active force overflow valve, plug-in one-way valve, pressure measurement Head, plug screw and connecting tube.Described valve body is the carrier of other universal components, is to realize each parts to connect, constitutes hydraulic circuit Passage body, integrated by valve body composition valve group.Described counteracting force overflow valve is bolted with valve body, its P hole Corresponding with the 9# hole of valve body and 8# hole respectively with T hole, system controls counteracting force overflow valve by the signal of telecommunication, thus controls anti-work Operating pressure firmly.Equally, active force overflow valve is bolted with valve body, its P hole and T hole respectively with the 12# of valve body Hole is corresponding with 11# hole, and system is by signal of telecommunication control action power overflow valve, thus the operating pressure of control action power.If first Connecting tube one end connects counteracting force overflow valve oil leak hole, and the other end is connected with valve body 14# hole, makes letting out of counteracting force overflow valve Dew oil returns to fuel tank by valve body.If second connecting tube one end coupling force overflow valve oil leak hole, the other end and valve body 6# hole Connect, make the leakage oil of active force overflow valve return to fuel tank by valve body.Described pressure measuring tie-in is four, and four pressure measuring tie-ins divide 18#, 19#, 22#, 23# screwed hole of the most threaded valve body, for measuring the pressure of counteracting force and active force.Described plug-in mounting Formula check valve is arranged in valve body 2# hole, and end plug screw blocks, and plug-in one-way valve connects the overflow of counteracting force overflow valve Hydraulic fluid port and active force oil cylinder, reversely can not open.Each fabrication hole on described valve body all uses plug screw to block.

Above-mentioned valve body surface is turned blue or Nickel Plating Treatment, rust resistance and corrosion resistance.

The hermetic unit of above-mentioned proportioning valve group completes to seal by O and combination mat.

This utility model uses plug-in one-way valve, is integrated in valve body by check valve, compact conformation, and pipeline is few and simple Single.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the side view of Fig. 1.

Fig. 3 is the rearview of Fig. 1.

Fig. 4 is valve body structure schematic diagram of the present utility model.

Fig. 5 is the right side view of Fig. 4.

Fig. 6 is the left side view of Fig. 4.

Fig. 7 is the top view of Fig. 4.

Fig. 8 is the upward view of Fig. 4.

Fig. 9 is the rearview of Fig. 4.

Detailed description of the invention

A kind of proportioning valve group, including valve body 1, counteracting force overflow valve 3, active force overflow valve 4, plug-in one-way valve 6, surveys Crimp head 7, plug screw and connecting tube.Described valve body 1 is the carrier of other universal components, is to realize each parts to connect, constitutes liquid Pushing back the passage body on road, integrated by valve body composition valve group, turn blue or Nickel Plating Treatment in its surface, rust resistance and corrosion resistance.Described Counteracting force overflow valve 3 is bolted with valve body 1, and its P hole is corresponding with the 9# hole of valve body 1 and 8# hole respectively with T hole, system Control counteracting force overflow valve by the signal of telecommunication, thus control the operating pressure of counteracting force.Equally, active force overflow valve 4 with Valve body 1 is bolted, and its P hole is corresponding with the 12# hole of valve body 1 and 11# hole respectively with T hole, and system is controlled by the signal of telecommunication Active force overflow valve, thus the operating pressure of control action power.Let out if first connecting tube 8 one end connects counteracting force overflow valve 3 Oilhole, the other end is connected with the 14# hole of valve body 1, makes the leakage oil of counteracting force overflow valve return to fuel tank by valve body.If second Connecting tube 9 one end coupling force overflow valve 4 oil leak hole, the other end is connected with the 6# hole of valve body 1, makes letting out of active force overflow valve Dew oil returns to fuel tank by valve body.Described pressure measuring tie-in 7 is four, the 18# of four pressure measuring tie-ins threaded valve bodies 1 respectively, 19#, 22#, 23# screwed hole, for measuring the pressure of counteracting force and active force.Described plug-in one-way valve 6 is arranged on valve body 1 2# hole in, end plug screw blocks, and plug-in one-way valve 6 connects the overflow hydraulic fluid port of counteracting force overflow valve 3 and active force oil Cylinder, reversely can not open.Each fabrication hole on described valve body all uses first plug screw the 2, second plug screw the 5, the 3rd plug screw 10 to block. The hermetic unit of described valve group completes to seal by O and combination mat, constitutes a kind of proportioning valve group.

Operation principle

1, passing ratio overflow valve, controls immediately to the pressure of system action force and counteracting force.

2, by pressure measuring tie-in contact pressure transmitter and Pressure gauge.

3, by built-in plug-in mounting check valve, it is achieved the fluid of active force part is supplemented by overflow fluid.

Claims

1. a proportioning valve group, including valve body (1), counteracting force overflow valve (3), active force overflow valve (4), plug-in one-way valve (6), pressure measuring tie-in (7), plug screw and connecting tube, it is characterised in that described valve body (1) is the carrier of other universal components, is real The most each parts connect, and constitute the passage body of hydraulic circuit, integrated by valve body composition valve group, described counteracting force overflow valve (3) being bolted with valve body (1), its P hole is corresponding with the 9# hole of valve body (1) and 8# hole respectively with T hole, and system passes through telecommunications Number control counteracting force overflow valve, thus control the operating pressure of counteracting force；Equally, active force overflow valve (4) and valve body (1) Being bolted, its P hole is corresponding with the 12# hole of valve body (1) and 11# hole respectively with T hole, and system passes through signal of telecommunication control action Power overflow valve, thus the operating pressure of control action power；Let out if the first connecting tube (8) one end connects counteracting force overflow valve (3) Oilhole, the other end is connected with the 14# hole of valve body (1), makes the leakage oil of counteracting force overflow valve return to fuel tank by valve body；If the Two connecting tubes (9) one end coupling force overflow valve (4) oil leak hole, the other end is connected with the 6# hole of valve body (1), makes active force overflow The Leakage Energy of stream valve returns to fuel tank by valve body；Described pressure measuring tie-in (7) is four, four pressure measuring tie-in threaded valves respectively 18#, 19#, 22#, 23# screwed hole of body (1), for measuring the pressure of counteracting force and active force；Described plug-in one-way valve (6) being arranged in the 2# hole of valve body (1), end plug screw blocks, and plug-in one-way valve (6) connects counteracting force overflow valve (3) Overflow hydraulic fluid port and active force oil cylinder, reversely can not open；Each fabrication hole on described valve body all uses plug screw to block.

A kind of proportioning valve group the most according to claim 1, it is characterised in that the hermetic unit of described proportioning valve group passes through O Shape circle and combination mat complete to seal.