CN207297518U

CN207297518U - A kind of hydraulic system of AWC servomechanism installations

Info

Publication number: CN207297518U
Application number: CN201721058505.9U
Authority: CN
Inventors: 白玉波
Original assignee: Tianjin Zhongzhong Science Technology and Engineering Co Ltd
Current assignee: Zhongzhong Science and Technology Tianjin Co Ltd
Priority date: 2017-08-22
Filing date: 2017-08-22
Publication date: 2018-05-01
Anticipated expiration: 2027-08-22

Abstract

The utility model provides a kind of hydraulic system of AWC servomechanism installations, including oil inlet pipe, oil return line, drain line, No. three high-pressure ball valves, high pressure filter and No.1 check valve are installed on the oil inlet pipe, end is divided into two-way, No.1 rod chamber oil pipe is connected to all the way, and another way is connected to No. two rod chamber oil pipes；The oil return line is equipped with No. two check valves, and end is divided into three tunnels, and the first via is connected to No.1 rodless cavity oil pipe, and the second tunnel is connected to No. two rodless cavity oil pipes, and the 3rd tunnel is connected to No. three rodless cavity oil pipes；The drain line is equipped with No. four high-pressure ball valves, and No.1 solenoid directional control valve and hydraulic control one-way valve in parallel are equipped between the drain line and the oil inlet pipe.The hydraulic system of AWC servomechanism installations described in the utility model, edger roll compensating cylinder control loop is integrated together, makes level of integrated system higher, and joint control and regulation is more convenient, is reduced the mating of equipment pipeline, is avoided unnecessary pipeline leakage point.

Description

A kind of hydraulic system of AWC servomechanism installations

Technical field

The utility model belongs to hydraulic system field, more particularly, to a kind of hydraulic system of AWC servomechanism installations.

Background technology

AWC is the english abbreviation (Automati Width Control) of automatic width control, and AWC servomechanism installations are positioned at each A vertical miller both sides, need when vertical miller works by AWC servomechanism installation adjustment widths, so as to steel rolling production-line Plate quality provides width guarantee.Under the overall background of today's society, AWC servomechanism installations have become present mainstream, its skill Art is also slowly perfect, and it is more steady to work.It is more demanding to the cleannes of fluid although its cost is more expensive, it is comprehensive Close and consider its cost performance higher.AWC servomechanism installations are by hydraulic pressure and electric co- controlling, but the system of the prior art exists Some problems：1st, servo valve have in itself in let out, servoBcylinder may because let out in servo valve produce malfunction；2 due to hydraulic station distance ServoBcylinder directly provides servoBcylinder rod chamber pressure farther out, by hydraulic station can make reaction speed slack-off, and control inaccurate.

The content of the invention

In view of this, the utility model is directed to a kind of hydraulic system of AWC servomechanism installations, to provide a kind of degree of safety The hydraulic system of fast AWC servomechanism installations with integrated level height, stable movement, precise control, reaction speed.

To reach above-mentioned purpose, what the technical solution of the utility model was realized in：

A kind of hydraulic system of AWC servomechanism installations, including it is No.1 AWC servo hydraulic cylinders, No. two AWC servo hydraulic cylinders, vertical Roller compensating cylinder, oil inlet pipe, oil return line, drain line, No.1 rodless cavity oil pipe, No. two rodless cavity oil pipes, No. three rodless cavities Oil pipe, No.1 rod chamber oil pipe and No. two rod chamber oil pipes, the front end of the oil inlet pipe are the oil inlet of fuel tank, the oil inlet Pipeline installs No. three high-pressure ball valves, high pressure filter and No.1 check valve, the oil inlet pipe at the rear of the oil inlet successively The end on road is divided into two-way, is connected to the No.1 rod chamber oil pipe all the way, and another way is connected to No. two rod chamber oil pipes, No. two rod chamber oil pipes are equipped with pressure reducing valve, No. two solenoid directional control valves and stacked double directional throttle valve, and end is connected to The rod chamber of the edger roll compensating cylinder, the No.1 rod chamber oil pipe are equipped with three-way pressure reducing valve, No. two pressure sensors and two Number pressure measuring tie-in, and end is respectively connected to the rod chamber of the No.1 AWC servo hydraulic cylinders and No. two AWC servo-hydraulics The rod chamber of cylinder, the rod chamber of No. two AWC servo hydraulic cylinders, the rod chamber of the No.1 AWC servo hydraulic cylinders and described The rod chamber of edger roll compensating cylinder is fixedly connected；The front end of the oil return line is the oil return opening of fuel tank, and the oil return line is in institute The rear for stating oil return opening is equipped with No. two check valves, and the end of the oil return line is divided into three tunnels, and the first via is connected to the No.1 Rodless cavity oil pipe, the second tunnel are connected to No. two rodless cavity oil pipes, and the 3rd tunnel is connected to No. three rodless cavity oil pipes, described No.1 rodless cavity oil pipe is equipped with No.1 servo valve and No.1 electromagnetic relief valve, the overfall access of the No.1 electromagnetic relief valve In the oil return line, the rodless cavity of the No.1 AWC servo hydraulic cylinders is accessed in the end of the No.1 rodless cavity oil pipe, described No. two rodless cavity oil pipes are equipped with No. two servo valves and No. two electromagnetic relief valves, the overfall access of No. two electromagnetic relief valves In the oil return line, the rodless cavity of No. two AWC servo hydraulic cylinders is accessed in the end of No. two rodless cavity oil pipes, described No. three rodless cavity oil pipes are equipped with No. two solenoid directional control valves and the stacked double directional throttle valve, and end is connected to described vertical The rodless cavity of roller compensating cylinder；The front end of the drain line is the unloading port of fuel tank, and the drain line is at the rear of unloading port Equipped with No. four high-pressure ball valves, No.1 solenoid directional control valve in parallel and hydraulic control are equipped between the drain line and the oil inlet pipe Check valve, the hydraulic control one-way valve are respectively connected to the No.1 servo valve and No. two servo valves.

Further, which further includes accumulator and No.1 high-pressure ball valve, and the No.1 high-pressure ball valve is installed on Between the high pressure filter of the oil inlet pipe and the No.1 check valve, the No.1 high-pressure ball valve is connected to the storage Can device.

Further, No. two high-pressure ball valves are equipped with the inside of No. two check valves, No. two high-pressure ball valves are connected to institute State accumulator.

Further, the model SL20PA-30B of the hydraulic control one-way valve, the model of the No.1 solenoid directional control valve The model of 4WE6C60B/CG24N9Z5L, the No.1 servo valve and No. two servo valves is D661-4538C/ The P ends of G35J0AA4VSX2HA, the P ends of the No.1 servo valve and No. two servo valves are connected to through the hydraulic control one-way valve The oil inlet pipe, the y ends of the hydraulic control one-way valve are connected to the drain line, and x ends are connected to the No.1 electromagnetic switch The B ends of valve, the P ends of the No.1 solenoid directional control valve are connected to the oil inlet pipe, and T ends are connected to the drain line.

Further, between the No.1 electromagnetic relief valve and the No.1 AWC servo hydraulic cylinders, No. two electromagnetism overflow No.1 pressure sensor is equipped between stream valve and No. two AWC servo hydraulic cylinders.

Further, between the No.1 electromagnetic relief valve and the No.1 AWC servo hydraulic cylinders, No. two electromagnetism overflow A vibration-proof pressure gauge is respectively equipped between stream valve and No. two AWC servo hydraulic cylinders, each vibration-proof pressure gauge is logical Cross side pressure hose, No.1 pressure measuring tie-in is connected to oil pipe where it.

Further, the vibration-proof pressure gauge is equipped between No. two solenoid directional control valves and the pressure reducing valve, it is described resistance to Shake pressure gauge is connected to the oil pipe where it by the side pressure hose, the No.1 pressure measuring tie-in.

Further, overflow valve is equipped between the stacked double directional throttle valve and the oil return line.

Further, the specification of the stacked double directional throttle valve is Z2FS10-20 series.

Further, the model 4WE10J31B/CG24N9Z5L of No. two solenoid directional control valves.

Relative to the prior art, the hydraulic system of AWC servomechanism installations described in the utility model has the advantage that：

(1) hydraulic system of AWC servomechanism installations described in the utility model, one is integrated into by edger roll compensating cylinder control loop Rise, make level of integrated system higher, joint control and regulation is more convenient, reduces the mating of equipment pipeline, avoids unnecessary pipe Road leakage point.

(2) hydraulic system of AWC servomechanism installations described in the utility model, increases before No.1 servo valve and No. two servo valves Add hydraulic control one-way valve, effectively prevent equipment malfunction caused by being let out in No.1 servo valve and No. two servo valves and make, eliminate personnel The hidden danger of injures and deaths and equipment damage.

(3) hydraulic system of AWC servomechanism installations described in the utility model, No.1 is directly provided by three-way pressure reducing valve The pressure of AWC servo hydraulic cylinders and No. two AWC servo hydraulic cylinder rod chambers, avoid because apart from distal response it is slow the problem of, and Three-way pressure reducing valve carries overflow valve function in itself, only need to set up decompressed pressure, oil pressure relief carries work(in itself by valve body It can automatically set up, can be realized when the pressure rise of No.1 AWC servo hydraulic cylinders and No. two AWC servo hydraulic cylinder rod chambers automatic Off-load, makes hydraulic control more accurate quick.

(4) fluid is effectively ensured in the hydraulic system of AWC servomechanism installations described in the utility model, the high pressure filter of setting Cleannes.

(5) hydraulic system of AWC servomechanism installations described in the utility model, the pressure sensor of setting, is effectively ensured one The accuracy of number servo valve and No. two servo valve signals.

Brief description of the drawings

The attached drawing for forming the part of the utility model is used to provide a further understanding of the present invention, this practicality is new The schematic description and description of type is used to explain the utility model, does not form the improper restriction to the utility model. In attached drawing：

Fig. 1 is the circuit diagram of the hydraulic system of the AWC servomechanism installations described in the utility model embodiment.

Description of reference numerals：

1- high pressure filters；2a- No.1 high-pressure ball valves；No. bis- high-pressure ball valves of 2b-；No. tri- high-pressure ball valves of 2c-；2d- tetra- High-pressure ball valve；3- accumulators；4- edger roll compensating cylinders；5a- No.1 check valves；No. bis- check valves of 5b-；6a- No.1 servo valves；6b- No. two servo valves；7a- No.1 electromagnetic relief valves；No. bis- electromagnetic relief valves of 7b-；8a- No.1 pressure measuring tie-ins；No. bis- pressure measurement of 8b- connect Head；9- vibration-proof pressure gauges；10a- No.1 pressure sensors；No. bis- pressure sensors of 10b-；11- overflow valves；12a- No.1 electromagnetism Reversal valve；No. bis- solenoid directional control valves of 12b-；13- hydraulic control one-way valves；14- three-way pressure reducing valves；15- pressure reducing valves；16- side pressure hoses； 17- oil inlet pipes；18- oil return lines；19- drain lines；20a- No.1 rodless cavity oil pipes；No. bis- rodless cavity oil pipes of 20b-； No. tri- rodless cavity oil pipes of 20c-；21a- No.1 rod chamber oil pipes；No. bis- rod chamber oil pipes of 21b-；The double one-way throttles of 22- superposing types Valve；A1- No.1 AWC servo hydraulic cylinders；A2- No.1 AWC servo hydraulic cylinders；P1- oil inlets；T1- oil return openings；Y- unloading ports.

Embodiment

It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the utility model can To be mutually combined.

In the description of the utility model, it is to be understood that the orientation of the instruction such as term "front", "rear" " interior ", " outer " Or position relationship is based on orientation shown in the drawings or position relationship, is for only for ease of description the utility model and simplification is retouched State, rather than instruction or imply signified device or element there must be specific orientation, with specific azimuth configuration and operation, Therefore it is not intended that limitation to the utility model.In addition, term " No.1 ", " No. two " etc. are only used for description purpose, without It is understood that to indicate or implying relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " one is defined Number ", the feature of " No. two " etc. can express or implicitly include one or more this feature.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection；Can mechanically connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition State concrete meaning of the term in the utility model.

The utility model will be described in detail below with reference to the accompanying drawings and embodiments.

A kind of hydraulic system of AWC servomechanism installations, as shown in Figure 1, being watched including No.1 AWC servo hydraulic cylinders A1, No. two AWC Take hydraulic cylinder A2, edger roll compensating cylinder 4, oil inlet pipe 17, oil return line 18, drain line 19, No.1 rodless cavity oil pipe 20a, two Number rodless cavity oil pipe 20b, No. three rodless cavity oil pipe 20c, No.1 rod chamber oil pipe 21a and No. two rod chamber oil pipe 21b, it is described The front end of oil inlet pipe 17 is the oil inlet P 1 of fuel tank, and the oil inlet pipe 17 installs three successively at the rear of the oil inlet P 1 The model KHB-20-F6-111406-X of number high-pressure ball valve 2c, high pressure filter 1 and No.1 check valve 5a, high-pressure ball valve 2c, The model DFBN/HC330QE3D1.X-L24 of high pressure filter 1, the model RVP20-10B of No.1 check valve 5a, height press through Filter 1 ensures the cleannes of fluid, and the end of the oil inlet pipe 17 is divided into two-way, is connected to the No.1 rod chamber oil all the way Pipe 21a, another way are connected to No. two rod chamber oil pipes 21b, No. two rod chamber oil pipes 21b be equipped with pressure reducing valve 15, No. two solenoid directional control valve 12b and stacked double directional throttle valve 22, and end is connected to the rod chamber of the edger roll compensating cylinder 4, subtracts The model DR10-4-50B/210Y, the No.1 rod chamber oil pipe 21a of pressure valve 15 are equipped with 14, No. two pressures of three-way pressure reducing valve Force snesor 10b and No. two pressure measuring tie-in 8b, the model 3DR10P4-6X/100Y/00M of three-way pressure reducing valve 14, No. two pressure Model HDA-3840-A-400-Y24, the model PT-7 of No. two pressure measuring tie-in 8b of sensor 10b, and end connects respectively The rod chamber of the No.1 AWC servo hydraulic cylinders A1 and the rod chamber of No. two AWC servo hydraulic cylinders A2 are connected to, passes through threeway Pressure reducing valve 14 directly provides the pressure of No.1 AWC servo hydraulic cylinder A1 rod chambers, No. two AWC servo hydraulic cylinder A2 rod chambers, keeps away Exempted from because apart from distal response it is slow the problem of, and three-way pressure reducing valve 14 carries overflow valve function in itself, only need to set up decompressed pressure , oil pressure relief carries function by valve body and sets up automatically in itself, as No.1 AWC servo hydraulic cylinder A1 rod chambers, No. two AWC The automatic deloading during pressure rise of servo hydraulic cylinder A2 rod chambers, makes control more accurate quick；No. two AWC servo-fluids The rod chamber of the rod chamber of cylinder pressure A2, the rod chamber of the No.1 AWC servo hydraulic cylinders A1 and the edger roll compensating cylinder 4, which is fixed, to be connected Connect, No.1 AWC servo hydraulic cylinders A1 and No. two AWC servo hydraulic cylinders A2 are separately mounted to the both sides of edger roll compensating cylinder 4, are steel rolling The plate quality of production line provides width guarantee；

The front end of the oil return line 18 is the oil return inlet T 1 of fuel tank, and the oil return line 18 is after the oil return inlet T 1 Side is equipped with No. two check valve 5b, and the model RVP20-10B of No. two check valve 5b, the end of the oil return line 18 is divided into three Road, the first via are connected to the No.1 rodless cavity oil pipe 20a, and the second tunnel is connected to No. two rodless cavity oil pipes 20b, the 3rd tunnel No. three rodless cavity oil pipes 20c is connected to, the No.1 rodless cavity oil pipe 20a is equipped with No.1 servo valve 6a and No.1 electromagnetism Overflow valve 7a, No.1 servo valve 6a provide the pressure of No.1 AWC servo hydraulic cylinder A1 rodless cavities；The No.1 electromagnetic relief valve The overfall of 7a is accessed in the oil return line 18, plays the role of safety valve；The end of the No.1 rodless cavity oil pipe 20a connects Enter the rodless cavity of the No.1 AWC servo hydraulic cylinders A1, No. two rodless cavity oil pipes 20b is equipped with No. two servo valve 6b and two Number electromagnetic relief valve 7b, No. two servo valve 6b provide the pressure of No. two AWC servo hydraulic cylinder A2 rodless cavities；No. two electromagnetism overflow The overfall for flowing valve 7b is accessed in the oil return line 18, plays the role of safety valve；The end of No. two rodless cavity oil pipes 20b The rodless cavity into No. two AWC servo hydraulic cylinders A2 is terminated, No. three rodless cavity oil pipes 20c is equipped with No. two electromagnetism Reversal valve 12b and the stacked double directional throttle valve 22, end are connected to the rodless cavity of the edger roll compensating cylinder 4；No.1 electromagnetism The model of overflow valve 7a and No. two electromagnetic relief valve 7b are DBW10A-1-30/315G24NZ5L；

The front end of the drain line 19 is the unloading port Y of fuel tank, and the drain line 19 is set at the rear of unloading port Y There are No. four high-pressure ball valve 2d, the model QJH-20WL of No. four high-pressure ball valve 2d, the drain line 19 and the oil inlet pipe No.1 solenoid directional control valve 12a and hydraulic control one-way valve 13 in parallel are equipped between 17, the hydraulic control one-way valve 13 is respectively connected to institute No.1 servo valve 6a and No. two servo valve 6b are stated, which is also integrated together edger roll compensating cylinder control loop, Make level of integrated system higher, joint control and regulation is more convenient, reduces the mating of equipment pipeline, avoids unnecessary pipeline and let out Leak source.

The hydraulic system further includes accumulator 3 and No.1 high-pressure ball valve 2a, the model NXQAB-20/315- of accumulator 3 The model QJH-20B, the No.1 high-pressure ball valve 2a of L-A, No.1 high-pressure ball valve 2a are installed on the institute of the oil inlet pipe 17 State between high pressure filter 1 and the No.1 check valve 5a, the No.1 high-pressure ball valve 2a is connected to the accumulator 3, accumulation of energy Device 3 plays the pressure oscillations in absorption system, No.1 high-pressure ball valve 2a, accumulator 3 and No.1 check valve 5a co- controllings Hydraulic system, ensures the stable movement of hydraulic system.

No. two high-pressure ball valves 2b, the model QJH-10B of No. two high-pressure ball valve 2b are equipped with the inside of No. two check valve 5b, No. two high-pressure ball valve 2b are connected to the accumulator 3.

The model SL20PA-30B of the hydraulic control one-way valve 13, the model of the No.1 solenoid directional control valve 12a The model of 4WE6C60B/CG24N9Z5L, the No.1 servo valve 6a and No. two servo valve 6b are D661-4538C/ The P ends of G35J0AA4VSX2HA, the P ends of the No.1 servo valve 6a and No. two servo valve 6b are through the hydraulic control one-way valve 13 The oil inlet pipe 17 is connected to, the y ends of the hydraulic control one-way valve 13 are connected to the drain line 19, and x ends are connected to described The B ends of No.1 solenoid directional control valve 12a, the P ends of the No.1 solenoid directional control valve 12a are connected to the oil inlet pipe 17, and T ends connect The drain line 19 is connected to, increases by one group of hydraulic control one-way valve 13 before No.1 servo valve 6a and No. two servo valve 6b, so as to protect Card is before the foundation of system closed loop or when PLC accident power-offs and plant maintenance, as long as No.1 solenoid directional control valve 12a is in dead electricity State, then hydraulic control one-way valve 13 would be at closed mode, the fuel feeding cut-out of No.1 servo valve 6a and No. two servo valve 6b, this Sample avoids to cause equipment malfunction to be made because letting out in No.1 servo valve 6a and No. two servo valve 6b, caused by casualties and equipment The hidden danger of damage.

Between the No.1 electromagnetic relief valve 7a and the No.1 AWC servo hydraulic cylinders A1, No. two electromagnetic relief valves No.1 pressure sensor 10a, the type of No.1 pressure sensor 10a are equipped between 7b and No. two AWC servo hydraulic cylinders A2 Number it is HDA-3840-A-400-Y24, the accuracy of No.1 servo valve 6a and No. two servo valve 6b signals is effectively ensured.

Between the No.1 electromagnetic relief valve 7a and the No.1 AWC servo hydraulic cylinders A1, No. two electromagnetic relief valves A vibration-proof pressure gauge 9 is respectively equipped between 7b and No. two AWC servo hydraulic cylinders A2, each vibration-proof pressure gauge 9 is equal The model HFH2- of the oil pipe, wherein side pressure hose 16 that are connected to by side pressure hose 16, No.1 pressure measuring tie-in 8a where it P1-3-P-1.2, the model PT-7 of No.1 pressure measuring tie-in 8a, the model YN60-III (0-40MPa) of vibration-proof pressure gauge 9.

The vibration-proof pressure gauge 9, the resistance to jolt-squeeze are equipped between No. two solenoid directional control valve 12b and the pressure reducing valve 15 Power table 9 is connected to the oil pipe where it by the side pressure hose 16, the No.1 pressure measuring tie-in 8a.

Overflow valve 11, the model of overflow valve 11 are equipped between the stacked double directional throttle valve 22 and the oil return line 18 For DBDS10P-10B/315.

The specification of the stacked double directional throttle valve 22 is Z2FS10-20 series.

The model 4WE10J31B/CG24N9Z5L of No. two solenoid directional control valve 12b.

A kind of operation principle of the hydraulic system of AWC servomechanism installations is：

Fluid enters hydraulic system for 1 mouthful from oil inlet P, by No. three high-pressure ball valve 2c, 1 high-pressure filteration of high pressure filter Device 1 filters, and by No.1 check valve 5a, then by hydraulic control one-way valve 13, (No.1 solenoid directional control valve 12a obtains electric hydraulic control one-way valve 13 open, and No.1 solenoid directional control valve 12a dead electricity hydraulic control one-way valve 13 closes, and solenoid directional control valve 12a is always during working condition Electricity), into No.1 servo valve 6a and No. two servo valve 6b, when No.1 servo valve 6a and No. two servo valve 6b is in right position, P ends A ends are connected, the rodless cavity of the rodless cavity of No.1 AWC servo hydraulic cylinders A1 and No. two AWC servo hydraulic cylinders A2 lead to oil and locates at this time In the state of stretching, the fluid of the rod chamber of No.1 AWC servo hydraulic cylinders A1 and the rod chamber of No. two AWC servo hydraulic cylinders A2 via The relief function of three-way pressure reducing valve 14 returns to oil return inlet T 1；When No.1 servo valve 6a and No. two servo valve 6b are in left position, A ends T ends are connected, fluid respectively enters the rod chamber and No. two AWC servos of No.1 AWC servo hydraulic cylinders A1 via three-way pressure reducing valve 14 The rod chamber of hydraulic cylinder A2, No.1 AWC servo hydraulic cylinders A1 and No. two AWC servo hydraulic cylinders A2 retract；Accumulator 3 in system Play the pressure oscillations in absorption system, No.1 electromagnetic relief valve 7a and No. two electromagnetic relief valve 7b can be in an emergency situation Open, make the rodless cavity difference pressure release of the rodless cavity and No. two AWC servo hydraulic cylinders A2 of No.1 AWC servo hydraulic cylinders A1, No.1 The rod chamber of the rod chamber of AWC servo hydraulic cylinders A1 and No. two AWC servo hydraulic cylinders A2 provide pressure contracting by three-way pressure reducing valve 14 Return；4 control loop of edger roll balance bar enters pressure reducing valve 15 via No.1 check valve 5a, and No. two solenoid directional control valves are entered after pressurization 12b, when solenoid directional control valve 12b is in right position, the logical A ends of its P terminations, then superimposed formula Double throttle check valve 22 are put down into edger roll The rod chamber of weighing apparatus thick stick 4, edger roll counter balance pocket retraction at this time, the superimposed formula Double throttle check valve 22 of its rodless cavity oil return is again through No. two electricity Magnetic reversal valve 12b returns to oil return inlet T 1, the logical B ends of its P terminations when No. two solenoid directional control valve 12b are in left position, then superimposed formula Double throttle check valve 22 enters the rodless cavity of edger roll balance bar 4, and edger roll balance bar stretches out at this time, and the superimposed formula of rod chamber oil return is double One-way throttle valve 22 returns to oil return inlet T 1 through solenoid directional control valve 12b again.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on, should be included in the utility model Protection domain within.

Claims

A kind of 1. hydraulic system of AWC servomechanism installations, it is characterised in that：Including No.1 AWC servo hydraulic cylinders (A1), No. two AWC Servo hydraulic cylinder (A2), edger roll compensating cylinder (4), oil inlet pipe (17), oil return line (18), drain line (19), No.1 are without bar Chamber oil pipe (20a), No. two rodless cavity oil pipes (20b), No. three rodless cavity oil pipes (20c), No.1 rod chamber oil pipe (21a) and No. two Rod chamber oil pipe (21b),

The front end of the oil inlet pipe (17) is the oil inlet (P1) of fuel tank, and the oil inlet pipe (17) is at the oil inlet (P1) Rear No. three high-pressure ball valves (2c), high pressure filter (1) and No.1 check valve (5a), the oil inlet pipe (17) are installed successively End be divided into two-way, be connected to the No.1 rod chamber oil pipe (21a) all the way, another way is connected to No. two rod chamber oil Manage (21b), it is double that No. two rod chamber oil pipes (21b) are equipped with pressure reducing valve (15), No. two solenoid directional control valves (12b) and superposing type To throttle valve (22), and end is connected to the rod chamber of the edger roll compensating cylinder (4), on the No.1 rod chamber oil pipe (21a) Equipped with three-way pressure reducing valve (14), No. two pressure sensors (10b) and No. two pressure measuring tie-ins (8b), and end be respectively connected to it is described The rod chamber of No.1 AWC servo hydraulic cylinders (A1) and the rod chamber of No. two AWC servo hydraulic cylinders (A2), No. two AWC The rod chamber of servo hydraulic cylinder (A2), the rod chamber of the No.1 AWC servo hydraulic cylinders (A1) and the edger roll compensating cylinder (4) Rod chamber is fixedly connected；

The front end of the oil return line (18) is the oil return opening (T1) of fuel tank, and the oil return line (18) is at the oil return opening (T1) Rear be equipped with No. two check valves (5b), the end of the oil return line (18) is divided into three tunnels, and the first via is connected to the No.1 Rodless cavity oil pipe (20a), the second tunnel are connected to No. two rodless cavity oil pipes (20b), and the 3rd tunnel is connected to described No. three without bar Chamber oil pipe (20c), the No.1 rodless cavity oil pipe (20a) are equipped with No.1 servo valve (6a) and No.1 electromagnetic relief valve (7a), The overfall of the No.1 electromagnetic relief valve (7a) is accessed in the oil return line (18), the No.1 rodless cavity oil pipe (20a) End access the rodless cavities of the No.1 AWC servo hydraulic cylinders (A1), No. two rodless cavity oil pipes (20b) are equipped with No. two Servo valve (6b) and No. two electromagnetic relief valves (7b), the overfall of No. two electromagnetic relief valves (7b) access the oil return line (18) in, the rodless cavity of No. two AWC servo hydraulic cylinders (A2), institute are accessed in the end of No. two rodless cavity oil pipes (20b) State No. three rodless cavity oil pipes (20c) and be equipped with No. two solenoid directional control valves (12b) and the stacked double directional throttle valve (22), End is connected to the rodless cavity of the edger roll compensating cylinder (4)；

The front end of the drain line (19) is the unloading port (Y) of fuel tank, and the drain line (19) is at the rear of unloading port (Y) Equipped with No. four high-pressure ball valves (2d), No.1 electromagnetism in parallel is equipped between the drain line (19) and the oil inlet pipe (17) Reversal valve (12a) and hydraulic control one-way valve (13), the hydraulic control one-way valve (13) be respectively connected to the No.1 servo valve (6a) and No. two servo valves (6b).
A kind of 2. hydraulic system of AWC servomechanism installations according to claim 1, it is characterised in that：The hydraulic system is also wrapped Accumulator (3) and No.1 high-pressure ball valve (2a) are included, the No.1 high-pressure ball valve (2a) is installed on the institute of the oil inlet pipe (17) State between high pressure filter (1) and the No.1 check valve (5a), the No.1 high-pressure ball valve (2a) is connected to the accumulator (3)。
A kind of 3. hydraulic system of AWC servomechanism installations according to claim 2, it is characterised in that：No. two check valves No. two high-pressure ball valves (2b) are equipped with the inside of (5b), No. two high-pressure ball valves (2b) are connected to the accumulator (3).
A kind of 4. hydraulic system of AWC servomechanism installations according to claim 1, it is characterised in that：The hydraulic control one-way valve (13) model SL20PA-30B, the model 4WE6C60B/CG24N9Z5L of the No.1 solenoid directional control valve (12a), it is described The model of No.1 servo valve (6a) and No. two servo valves (6b) is D661-4538C/G35J0AA4VSX2HA, and described one Number P ends of servo valve (6a) and the P ends of No. two servo valves (6b) are connected to the oil inlet through the hydraulic control one-way valve (13) Pipeline (17), the y ends of the hydraulic control one-way valve (13) are connected to the drain line (19), and x ends are connected to the No.1 electromagnetism The B ends of reversal valve (12a), the P ends of the No.1 solenoid directional control valve (12a) are connected to the oil inlet pipe (17), and T ends are connected to The drain line (19).
A kind of 5. hydraulic system of AWC servomechanism installations according to claim 1, it is characterised in that：The No.1 electromagnetism overflows Flow between valve (7a) and the No.1 AWC servo hydraulic cylinders (A1), No. two electromagnetic relief valves (7b) and No. two AWC are watched Take and be equipped with No.1 pressure sensor (10a) between hydraulic cylinder (A2).
A kind of 6. hydraulic system of AWC servomechanism installations according to claim 1, it is characterised in that：The No.1 electromagnetism overflows Flow between valve (7a) and the No.1 AWC servo hydraulic cylinders (A1), No. two electromagnetic relief valves (7b) and No. two AWC are watched Take and be respectively equipped with a vibration-proof pressure gauge (9) between hydraulic cylinder (A2), each vibration-proof pressure gauge (9) passes through side pressure hose (16), No.1 pressure measuring tie-in (8a) is connected to the oil pipe where it.
A kind of 7. hydraulic system of AWC servomechanism installations according to claim 6, it is characterised in that：No. two electromagnetism change To the vibration-proof pressure gauge (9) is equipped between valve (12b) and the pressure reducing valve (15), the vibration-proof pressure gauge (9) is by described Side pressure hose (16), the No.1 pressure measuring tie-in (8a) are connected to the oil pipe where it.
A kind of 8. hydraulic system of AWC servomechanism installations according to claim 1, it is characterised in that：The superposing type is two-way Overflow valve (11) is equipped between throttle valve (22) and the oil return line (18).
A kind of 9. hydraulic system of AWC servomechanism installations according to claim 1, it is characterised in that：The superposing type is two-way The specification of throttle valve (22) is Z2FS10-20 series.
A kind of 10. hydraulic system of AWC servomechanism installations according to claim 1, it is characterised in that：No. two electromagnetism change To the model 4WE10J31B/CG24N9Z5L of valve (12b).