Máy đào HuynDai R170W-9 (Phần 1) - P3

Shop manual máy đào HuynDai R170W-9 (Phần 1) Phần thủy lực

Trang 1

GROUP 4 SINGLE OPERATION

When the right control lever is pulled back, the boom spools in the main control valve are moved to the up position by the pilot oil pressure from the remote control valve

The oil from the A1 and A2 pump flows into the main control valve and then goes to the large chamber of boom cylinders At the same time, the oil from the small chamber of boom cylinders returns to the hydraulic oil tank through the boom spool in the main control valve When this happens, the boom goes up The excessive pressure in the boom cylinder head side is prevented

by relief valve When the boom is up and the control lever is returned to neutral position, the circuit for the holding pressure at the head side of the boom cylinder is closed by the boom holding valve

1 BOOM UP OPERATION

B1

A2 B2

T4(TGP)

ACC1GP

BR1 ACC2 ACC1

CT4

P

PGP CT3 CT1 CT2

dr3

BRAKE VALVE

ARM CYLINDER

BUCKET CYLINDER

TRAVEL MOTOR FRONT AXLE REAR AXLEOSCILLATINGCYLINDER

TRANSMISSION

SWING MOTOR

TURNING JOINT

BOOM CYLINDER

TP

M2

P

T

P

T

M K B

AC1

T3 P1

P1 P2

M1

Pu

Pc42 Pb3 Pd41

DR1

Pb21 Pb20

Pb1 Pa1

T1

Pc3 Pa21 V3

Pd2 D2

C2

Pc1 D1

C1 Pd1

Ai

B4

B5 A5 Pa5 Pb5

Pa4

C5

D4 C4

Pc40 Pd40

DR3

Pc5

Rs C6

D6

P03

PS

P1 P2

P3

P0

Patt P02 PS

Pn1 Pi1(Pump) Pi2(Pump)

PS

Pd6 Pc6

PS

Pc2

P05 Puo

Pc41

DR5

DR2

DR4

DR0

SH (S/Motor)

ARM 1

BOOM 2

SWING

BOOM 1

ARM REGEN

BUCKET OPT-B

DOZER

ARM 2

PILOT HYDRAULIC TANK

BOOM HOLDING VALVE

RELIEF VALVE DOZER/ OUTRIGGER CYLINDER

A1 PUMP

A2 PUMP

P04

17W93HC10

Trang 2

When the right control lever is pushed forward, the boom 1 spool in the main control valve is moved

to the down position by the pilot oil pressure from the remote control valve

The oil from the A2 pump flows into the main control valve and then goes to the small chamber of boom cylinders At the same time, the oil from the large chamber of boom cylinders returns to the hydraulic tank through the boom 1 spool in the main control valve

When the down speed of boom is faster, the oil returned from the large chamber of boom cylinder combines with the oil from the A2 pump, and flows into the small chamber of the cylinder

This prevents cylinder cavitation by the negative pressure when the A2 pump flow can not match the boom down speed And the excessive pressure in the boom cylinder rod side is prevented by the

2 BOOM DOWN OPERATION

B1

A2 B2

T4(TGP)

ACC1GP

BR1 ACC2 ACC1

CT4

P

PGP CT3

CT1 CT2

dr3

BRAKE VALVE

ARM CYLINDER CYLINDERBUCKET TRAVEL MOTOR

FRONT AXLE REAR AXLEOSCILLATINGCYLINDER

TRANSMISSION

SWING MOTOR

TURNING

JOINT

BOOM CYLINDER

TP

M2

P

T

P

T

M K B

AC1

T3 P1

P1

P2

M1

Pu

Pc42 Pb3 Pd41

DR1

Pb21 Pb20

Pb1 Pa1

T1

Pc3 Pa21 V3

Pd2 D2

C2

Pc1 D1 C1 Pd1

Ai

B4

B5 A5 Pa5 Pb5

Pa4

C5

D4 C4

Pc40 Pd40

DR3

Pc5 Pd5

Rs C6

D6

P03

PS

P1 P2

P3

P0

PattPS

PS

Pd6 Pc6

PS

Pc2

P05 Puo

Pc41

DR5

DR2

DR4

DR0 SH (S/Motor)

ARM 1

BOOM 2

SWING

BOOM 1

ARM REGEN

BUCKET OPT-B

DOZER

ARM 2

DOZER/ OUTRIGGER CYLINDER

A1 PUMP

A2 PUMP

P04

RELIEF VALVE

17W93HC11

Trang 3

When the left control lever is pulled back, the arm spools in the main control valve are moved to the arm in position by the pilot oil pressure from the remote control valve

The oil from the A1 and A2 pump flows into the main control valve and then goes to the large chamber of arm cylinder

At the same time, the oil from small chamber of arm cylinder returns to the hydraulic oil tank through the arm spool in the main control valve When this happens, the arm rolls in

The excessive pressure in the arm cylinder head side is prevented by relief valve

The cavitation which will happen to the head side of the arm cylinder is also prevented by the

make-up valve in the main control valve

3 ARM IN OPERATION

B1

A2 B2

T4(TGP)

ACC1GP

BR1 ACC2 ACC1

CT4

P

PGP CT3 CT1 CT2

dr3

BRAKE VALVE

ARM CYLINDER CYLINDERBUCKET

TRANSMISSION

SWING MOTOR

TURNING JOINT

BOOM CYLINDER

TP

M2

P

T

P

T

M K B

AC1

T3 P1

P1 P2

M1

Pu

Pc42 Pb3 Pd41

DR1

Pb21 Pb20

Pb1 Pa1

T1

Pc3 Pa21 V3

Pd2 D2

C2

Pc1 D1

C1 Pd1

Ai

B4

B5 A5 Pa5 Pb5

Pa4

C5

D4 C4

Pc40 Pd40

DR3

Pc5

Rs C6

D6

P03

PS

P1 P2

P3

P0

Patt P02 PS

PS

Pd6 Pc6

PS

Pc2

P05 Puo

Pc41

DR5

DR2

DR4

DR0

SH (S/Motor)

ARM 1

BOOM 2

SWING

BOOM 1

ARM REGEN

BUCKET OPT-B

DOZER

ARM 2

A1 PUMP

A2 PUMP

P04

MAKE UP VALVE

RELIEF VALVE

17W93HC12

Trang 4

When the left control lever is pushed forward, the arm spools in the main control valve are moved to the arm out position by the pilot oil pressure from the remote control valve

The oil from the A1 and A2 pump flows into the main control valve and then goes to the small chamber of arm cylinder At the same time, the oil from the large chamber of arm cylinder returns to the hydraulic oil tank through the arm spool in the main control valve When this happens, the arm rolls out The cavitation which will happen to the rod side of the arm cylinder is also prevented by the make-up valve in the main control valve When the arm is roll out and the control lever is returned to neutral position, the circuit for the holding pressure at the rod side of the arm cylinder is closed by the arm holding valve This prevent the hydraulic drift of arm cylinder

4 ARM OUT OPERATION

B1

A2 B2

T4(TGP)

ACC1GP

BR1 ACC2 ACC1

CT4

P

PGP CT3 CT1 CT2

dr3

BRAKE VALVE

TRANSMISSION

SWING MOTOR

TURNING JOINT

BOOM CYLINDER

TP

M2

P

T

P

T

M K B

AC1

T3 P1

P1 P2

M1

Pu

Pc42 Pb3 Pd41

DR1

Pb21 Pb20

Pb1 Pa1

T1

Pc3 Pa21 V3

Pd2 D2

C2

Pc1 D1

C1 Pd1

Ai

B4

B5 A5 Pa5 Pb5

Pa4

C5

D4 C4

Pc40 Pd40

DR3

Pc5

Rs C6

D6

P03

PS

P1 P2

P3

P0

Patt P02 PS

PS

Pd6 Pc6

PS

Pc2

P05 Puo

Pc41

DR5

DR2

DR4

DR0

SH (S/Motor)

ARM 1

BOOM 2

SWING

BOOM 1

ARM REGEN

BUCKET OPT-B

DOZER

ARM 2

ARM HOLDING VALVE

RELIEF VALVE DOZER/ OUTRIGGER CYLINDER

A1 PUMP

A2 PUMP

P04 MAKE UP VALVE

17W93HC13

Trang 5

When the right control lever is pulled left, the bucket spool in the main control valve is moved to the roll in position by the pilot oil pressure from the remote control valve

The oil from the A2 pump flows into the main control valve and then goes to the large chamber of bucket cylinder

At the same time, the oil from the small chamber of bucket cylinder returns to the hydraulic oil tank through the bucket spool in the main control valve When this happens, the bucket rolls in

The excessive pressure in the bucket cylinder head side is prevented by relief valve

The cavitation which will happen to the head side of the bucket cylinder is also prevented by the make-up valve in the main control valve

5 BUCKET IN OPERATION

B1

A2 B2

T4(TGP)

ACC1GP

BR1 ACC2 ACC1

CT4

P

PGP CT3

CT1 CT2

dr3

BRAKE VALVE

FRONT AXLE REAR AXLE OSCILLATINGCYLINDER

TRANSMISSION

SWING MOTOR

TURNING

JOINT

BOOM CYLINDER

TP

M2

P

T

P

T

M K B

AC1

T3 P1

P1

P2

M1

Pu

Pc42 Pb3 Pd41

DR1

Pb21 Pb20

Pb1 Pa1

T1

Pc3 Pa21 V3

Pd2 D2

C2

Pc1 D1 C1 Pd1

Ai

B4

B5 A5 Pa5 Pb5

Pa4

C5

D4 C4

Pc40 Pd40

DR3

Pc5 Pd5

Rs C6

D6

P03

PS

P1 P2

P3

P0

PattPS

PS

Pd6 Pc6

PS

Pc2

P05 Puo

Pc41

DR5

DR2

DR4

DR0 SH (S/Motor)

ARM 1

BOOM 2

SWING

BOOM 1

ARM REGEN

BUCKET OPT-B

DOZER

ARM 2

HYDRAULIC TANK

MAKE UP VALVE

RELIEF VALVE

PILOT A1

PUMP

A2 PUMP

P04

17W93HC14

Trang 6

When the right control lever is pushed right, the bucket spool in the main control valve is moved to the bucket out position by the pilot oil pressure from the remote control valve

The oil from the A2 pump flows into the main control valve and then goes to the small chamber of bucket cylinder

At the same time, the oil from the large chamber of bucket cylinder returns to the hydraulic oil tank through the bucket spool in the main control valve When this happens, the bucket rolls out

The cavitation which will happen to the rod side of the bucket cylinder is also prevented by the make-up valve in the main control valve

6 BUCKET OUT OPERATION

B1

A2 B2

T4(TGP)

ACC1GP

BR1 ACC2 ACC1

CT4

P

PGP CT3 CT1 CT2

dr3

BRAKE VALVE

TRANSMISSION

SWING MOTOR

TURNING JOINT

BOOM CYLINDER

TP

M2

P

T

P

T

M K B

AC1

T3 P1

P1 P2

M1

Pu

Pc42 Pb3 Pd41

DR1

Pb21 Pb20

Pb1 Pa1

T1

Pc3 Pa21 V3

Pd2 D2

C2

Pc1 D1

C1 Pd1

Ai

B4

B5 A5 Pa5 Pb5

Pa4

C5

D4 C4

Pc40 Pd40

DR3

Pc5

Rs C6

D6

P03

PS

P1 P2

P3

P0

Patt P02 PS

PS

Pd6 Pc6

PS

Pc2

P05 Puo

Pc41

DR5

DR2

DR4

DR0

SH (S/Motor)

ARM 1

BOOM 2

SWING

BOOM 1

ARM REGEN

BUCKET OPT-B

DOZER

ARM 2

HYDRAULIC TANK

MAKE UP VALVE RELIEF

VALVE DOZER/ OUTRIGGER CYLINDER

PILOT A1

PUMP

A2 PUMP

P04

17W93HC15

Trang 7

When the dozer control lever is pulled back, the dozer spool in the main control valve is moved to the dozer up position by the pilot oil pressure from the remote control valve

The oil from the A1 pump flows into the main control valve and then goes to the small chamber of rear actuator cylinder (dozer or outrigger)

The other case, the oil flows into the small chamber of front actuator cylinder (dozer or outrigger)

At the same time, the oil from the large chamber of dozer (outrigger) cylinders returns to the hydraulic oil tank through the dozer spool in the main control valve When this happens, the dozer (outrigger) goes up

7 DOZER/OUTRIGGER UP OPERATION

B1

A2 B2

T4(TGP)

ACC1GP

BR1 ACC2 ACC1

CT4

P

PGP CT3 CT1 CT2

dr3

BRAKE VALVE

ARM CYLINDER

BUCKET CYLINDER

TRANSMISSION

SWING MOTOR

TURNING JOINT

BOOM CYLINDER

TP

M2

P

T

P

T

M K B

AC1

T3 P1

P1 P2

M1

Pu

Pc42 Pb3 Pd41

DR1

Pb21 Pb20

Pb1 Pa1

T1

Pc3 Pa21 V3

Pd2 D2

C2

Pc1 D1

C1 Pd1

Ai

B4

B5 A5 Pa5 Pb5

Pa4

C5

D4 C4

Pc40 Pd40

DR3

Pc5

Rs C6

D6

P03

PS

P1 P2

P3

P0

Patt P02 PS

PS

Pd6 Pc6

PS

Pc2

P05 Puo

Pc41

DR5

DR2

DR4

DR0

SH (S/Motor)

ARM 1

BOOM 2

SWING

BOOM 1

ARM REGEN

BUCKET OPT-B

DOZER

ARM 2

PUMP

A2 PUMP

P04

17W93HC16

Trang 8

8 DOZER/OUTRIGGER DOWN OPERATION

B1

A2 B2

T4(TGP)

ACC1GP

BR1 ACC2 ACC1

CT4

P PGP CT3

CT1 CT2

dr3

BRAKE VALVE

FRONT AXLE REAR AXLE OSCILLATINGCYLINDER

TRANSMISSION

SWING MOTOR

TURNING

JOINT

BOOM CYLINDER

TP

M2

P

T

P

T

M K B AC1

T3 P1

P1

P2

L R

M1

Pu

Pc42 Pb3 Pd41

DR1 Pb21 Pb20

Pb1 Pa1

T1

Pc3 Pa21 V3

Pd2 D2 C2

Pc1 D1 C1 Pd1

Ai

B4

B5 A5 Pa5 Pb5

Pa4

C5

D4 C4

Pc40 Pd40 DR3 Pc5

Rs C6

D6

P03

PS

P1 P2 P3 P0

Patt PS

Pn1 Pi1(Pump) Pi2(Pump) Pn2 PS PS

Pd6 Pc6

PS

Pc2

P05 Puo

Pc41 DR5

DR2

DR4

DR0 SH (S/Motor)

ARM 1

BOOM 2

SWING

BOOM 1

ARM REGEN

BUCKET OPT-B

DOZER

ARM 2

PUMP A2 PUMP

P04

17W93HC17

When the dozer control lever is pushed forward, the dozer spool in the main control valve is moved

to the dozer down position by the pilot oil pressure from the remote control valve

The oil from the A1 pump flows into the main control valve and then goes to the large chamber of rear actuator cylinder (dozer or outrigger)

The other case, the oil flows into the large chamber of front actuator cylinder (dozer or outrigger)

At the same time, the oil from the small chamber of dozer (outrigger) cylinders returns to the hydraulic oil tank through the dozer spool in the main control valve When this happens, the dozer (outrigger) goes down

Trang 9

When the left control lever is pushed left or right, the swing spool in the main control valve is moved

to the left or right swing position by the pilot oil pressure from the remote control valve

Also the swing operation preference function is operated by the pilot pressure Pc3 (refer to page 2-34)

The oil from the A1 pump flows into the main control valve and then goes to the swing motor

At the same time, the return oil from the swing motor returns to the hydraulic oil tank through the swing spool in the main control valve

When this happens, the upper structure swings to the left or right

9 SWING OPERATION

B1

A2 B2

T(dr1)

PO3 (MCV)

T4(TGP)

ACC1GP

BR1 ACC2 ACC1

CT4

P

PGP CT3

CT1 CT2

dr3

BRAKE VALVE

TRANSMISSION

TURNING

JOINT

BOOM CYLINDER

TP

M2

P

T

P

T

M K B

AC1

T3 P1

P1

P2

SWING P T ARM BUCKET P T BOOM

(1)

c

Pc3

PS

Pd40 Pa5 Pb5

Pc2

Pd2

Pc40 Pa20 Pb20

PS

(3)

PS

(4) (3) (1) (2) (4)

(2)

RCV LEVER(LH) RCV LEVER(RH)

Pb4 (MCV) X1 (T/Motor) Pu (MCV)

M1

Pu

Pc42 Pb3 Pd41

DR1

Pb21 Pb20

Pb1 Pa1

T1

Pc3 Pa21 V3

Pd2 D2

C2

Pc1 D1 C1 Pd1

Ai

B4

B5 A5 Pa5 Pb5

Pa4

C5

D4 C4

Pc40 Pd40

DR3

Pc5 Pd5

Rs C6

D6

P03

PS

P1 P2

P3

P0

Patt

PS

Pd6 Pc6

PS

Pc2

P05 Puo

Pc41

DR5

DR2

DR4

DR0

ARM 1

BOOM 2

SWING

BOOM 1

ARM REGEN

BUCKET OPT-B

DOZER

ARM 2

P1

P4 P3 P2 PO(MCV) PG(S/M)

LINE FILTER

SWING MOTOR SH

A(ccw) Dr

B(cw)

PG

PS

SH (S/Motor)

PILOT

HYDRAULIC TANK

DR#, dr#

A1 PUMP

A2 PUMP

P04

17W93HC18

Trang 10

SWING CIRCUIT OPERATION

SWING MOTOR DEVICE

SH

PG

Dr

Au

B(cw) A(ccw)

PARKING BRAKE

MAKE UP PORT(Mu)

TO / FROM MAIN CONTROL VALVE

MAKE UP VALVE MOTOR BRAKE VALVE

BRAKE OFF

BRAKE ON

ANTI-INVERSION VALVE BRAKE RELEASE VALVE

MOTOR BRAKE VALVE

Motor brake valve for the swing motor limits to cushion the starting and stopping pressure of swing operation and controls the swing motor operating pressure

MAKE UP VALVE

The make up valves prevent cavitation by supplying return oil to the vacuum side of the motor PARKING BRAKE

This is function as a parking brake only when all of the RCV lever (except dozer lever and travel pedal) are not operated

PARKING BRAKE "OFF" OPERATION

The parking brake is released by the pilot pressure oil from the pilot pump

When the RCV lever placed in the operating position, the pilot oil flows into SH port through the MCV This pressure transferred to the brake release valve and the brake release valve is change over Then the pilot oil pressure PG lift the brake piston and release the parking brake

PARKING BRAKE "ON" OPERATION

When all of the RCV lever placed in the neutral position, the pressure of the pilot oil passage down Then the brake release valve returned to the neutral position and the oil is returned from the brake piston to the tank And the brake is set to 'ON"

ANTI-INVERSION

ANTI-INVERSION VALVE VALVE

1)

2)

3)

4)

14W93HC18A

Trang 11

When the RH multifunction switch is placed in forward or reverse position, the travel spool in the main control valve is moved to the forward or reverse position by the pilot oil pressure from pilot pump through the travel pilot solenoid of travel control valve The oil from the A1 pump flows into the main control valve and then goes to the travel motor At the same time, the oil returned from the travel motor returns to the hydraulic oil tank through the turning joint and travel spool in the main control valve

When this happens, the machine moves forward or reverse

10 TRAVEL FORWARD AND RE

10 TRAVEL FORWARD AND REVERSE O VERSE OPERATION PERATION

Pi1

Pi2

DR#, dr#

B1

A2 B2

B1

S2 S1 P2

P1

B3 A3

A2 A1

T(dr1)

Pd6 Pc6

T2,T3,T4

PO3

(MCV)

P T2

T4(TGP)

ACC1GP

BR1 ACC2 ACC1

CT4

P PGP CT3

CT1 CT2

dr3

ENG

HYD TANK

ACCELERATOR

PEDAL

BRAKE VALVE

TRAVEL MOTOR FRONT AXLE REAR AXLE OSCILLATINGCYLINDER

TRANSMISSION

SWING MOTOR

TURNING

JOINT

MAIN PUMP

BOOM CYLINDER

TP

M2

P

T

P

T

M K B AC1

T3 P1

P1

P2

SWING P T ARM BUCKET P T BOOM

(1)

c

Pc3

PS Pd40 Pa5 Pb5 Pc2

Pd2

Pc40 Pa20 Pb20

PS

(3)

PS

1 2

P

DOZER LEVER

Pc1(FW)

T

(4) (3) (1) (2) (4) (2)

Pd1(BW)

P T

RCV LEVER(LH) RCV LEVER(RH)

Pb4 (MCV) X1 (T/Motor) Pu (MCV)

PS

L R

M1

Pn1(MCV)

Pn2 (MCV)

PS PS

Pu

Pc42 Pb3 Pd41

DR1 Pb21 Pb20

Pb1 Pa1

T1

Pc3 Pa21 V3

Pd2 D2 C2

Pc1 D1 C1 Pd1

Ai

B4

B5 A5 Pa5 Pb5

Pa4

C5

D4 C4

Pc40 Pd40 DR3 Pc5

Rs C6

D6

P03

PS

P1 P2 P3 P0

Patt PS

Pn1 Pi1(Pump) Pi2(Pump) Pn2 PS PS

Pd6 Pc6

PS

Pc2

P05 Puo

Pc41 DR5

DR2

DR4

DR0 SH (S/Motor)

ARM 1

BOOM 2

SWING

BOOM 1

ARM REGEN

BUCKET OPT-B

DOZER

ARM 2

P1

P4 P3 P2 PO(MCV) PG(S/M)

LINE FILTER

TRAVEL CONTROL

VALVE

TRAVEL PILOT

SOLENOID

MAKE UP VALVE

P04

17W93HC19

Tiêu đề	Máy đào HuynDai R170W-9 (Phần 1) - P3
Trường học	University of Technology
Chuyên ngành	Mechanical Engineering
Thể loại	Bài báo
Năm xuất bản	2023
Thành phố	Hanoi

Định dạng
Số trang	15
Dung lượng	1,07 MB