WO1997007878A1 - Dispositif d'entrainement pour un melangeur-desintegrateur - Google Patents

Dispositif d'entrainement pour un melangeur-desintegrateur Download PDF

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Publication number
WO1997007878A1
WO1997007878A1 PCT/JP1996/002459 JP9602459W WO9707878A1 WO 1997007878 A1 WO1997007878 A1 WO 1997007878A1 JP 9602459 W JP9602459 W JP 9602459W WO 9707878 A1 WO9707878 A1 WO 9707878A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
hydraulic motor
hydraulic
switching valve
bypass
Prior art date
Application number
PCT/JP1996/002459
Other languages
English (en)
Japanese (ja)
Inventor
Hiroshi Shimizu
Original Assignee
Komatsu 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 Komatsu Ltd. filed Critical Komatsu Ltd.
Priority to DE19681540T priority Critical patent/DE19681540T1/de
Publication of WO1997007878A1 publication Critical patent/WO1997007878A1/fr

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16Details
    • B02C18/24Drives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/30Driving arrangements; Transmissions; Couplings; Brakes
    • B01F35/32Driving arrangements
    • B01F35/32005Type of drive
    • B01F35/32045Hydraulically driven

Definitions

  • the present invention relates to a driving device of a crushing and mixing machine that crushes and mixes soil and soil with a soil improving material to form soil with improved soil.
  • a disintegrating mixer there is known a disintegrating mixer in which a plurality of rotors are rotatably provided in a housing and each rotor is driven by a hydraulic motor.
  • each hydraulic motor is connected in series, and the hydraulic pressure discharged from one hydraulic pump is sequentially supplied to those hydraulic motors to drive each hydraulic motor.
  • Each hydraulic motor can be driven even if the rotor load is different.
  • the hydraulic pressure discharged from one hydraulic pump is separately supplied to multiple hydraulic motors and driven, the hydraulic pressure is supplied only to the hydraulic motor with the smallest load, and the other hydraulic motors are driven. Since it is not possible to do so, the discharge pressure oil of the hydraulic pump is supplied to the inlet port of the first hydraulic motor, and the outlet port of the first hydraulic motor is connected to the inlet port of the second hydraulic motor.
  • the hydraulic motors are connected to a series, and these hydraulic motors are connected to a series, and even if the load of each hydraulic motor is different, each hydraulic motor is driven by the discharge hydraulic oil of one hydraulic pump. I am trying to do it.
  • the differential pressure between the inlet pressure and the outlet pressure of each hydraulic motor must be set to a pressure Pa that matches the required driving torque.
  • the inlet pressure of the motor is Pa
  • the outlet pressure of the next hydraulic motor is Pa
  • the inlet pressure of that hydraulic motor is 2 x Pa
  • the outlet pressure of the next hydraulic motor is 2 XP and the inlet pressure of the hydraulic motor is 3 x Pa. Therefore, the normally required maximum discharge pressure of the hydraulic pump is the value of (pressure Pa corresponding to the normally required drive torque) X (the number of hydraulic motors).
  • the torque of the hydraulic motor when the rotor is driven in a steady state is small, but the torque of the hydraulic motor required when starting the rotor is large, so that the hydraulic pump is started.
  • the maximum discharge pressure required at the time is (pressure corresponding to the torque required at startup)
  • the present invention provides a drive device for a crushing and mixing machine in which the maximum discharge pressure of a hydraulic pump required at the time of startup is reduced as compared with the conventional case, so that the drive device is inexpensive.
  • the purpose is to provide Disclosure of the invention
  • the driving device of the crushing and mixing machine according to the present invention comprises:
  • a disintegration mixer in which a plurality of rotors are rotatably provided in a housing, and each of the rotors is driven by each hydraulic motor,
  • the hydraulic motor is connected in series by connecting the outlet port and the inlet port of the adjacent hydraulic motor with the main circuit, and the inlet port of the hydraulic motor located at one end is connected to the other port.
  • the hydraulic pump and the tank are connected via the main switching valve to the outlet port of the hydraulic motor located at the end, respectively.
  • a bypass path is provided to connect each of the main circuits and the motor side circuit of the main switching valve, and each of the bypasses is provided with at least one of a switching valve for communicating and blocking the bypass and at least one of the throttles. is there.
  • the switching valve and the throttle may be provided in each of the bypasses.
  • each of the bypasses is provided with the switching valve and a pressure sensor for detecting the pressure of each of the bypass passages, and shuts off the switching valve of the corresponding bypass passage when the pressure detected by the pressure sensor reaches a predetermined pressure. It may be equipped with a controller for positioning.
  • the throttle may be provided in each of the bypasses. According to the above configuration,
  • the hydraulic motor is connected in series by connecting the outlet port and the inlet port of the adjacent hydraulic motor with a main circuit, and the inlet port of the hydraulic motor located at one end is connected to the inlet port.
  • the hydraulic pump and the tank are connected to the outlet port of the hydraulic motor located at the other end via the main switching valve 11, respectively.
  • a bypass path is provided for connecting each of the main circuits and the motor side circuit of the main switching valve, and each of the bypass paths is connected to each of the bypass paths.
  • the maximum discharge pressure of the hydraulic pump can be set to the starting pressure + the steady pressure X (the number of hydraulic motors-1). It will be cheaper. Also, since the starting pressure supplied to the hydraulic motor is smaller than when all hydraulic motors are started simultaneously, the hydraulic motor can be made smaller.
  • FIG. 1 is an explanatory diagram of a crushing and mixing machine including a first embodiment of a driving device according to the present invention.
  • FIG. 2 is a hydraulic circuit diagram of the first embodiment of the present invention.
  • FIG. 3 is an explanatory diagram at the start of startup in the first embodiment.
  • FIG. 4 is an explanatory diagram at the time of steady driving in the first embodiment.
  • FIG. 5 is a hydraulic circuit according to a second embodiment of the present invention.
  • FIG. 6 is a hydraulic circuit diagram of a third embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
  • the disintegration mixer includes a first rotor 3 rotated by a first hydraulic motor 2, a second rotor 5 rotated by a second hydraulic motor 4, and a third hydraulic motor 6 in a housing 1.
  • a third rotor 7 is provided, which is rotated by a rotary shaft.
  • Each rotor has a crushing mixer 8 radially attached to a rotating shaft.
  • the discharge pressure oil of the hydraulic pump 10 is supplied and controlled to the first main circuit 12 and the auxiliary circuit 13 via the main switching valve 11.
  • the first main circuit 12 is connected to the inlet port 6a of the third hydraulic motor 6, and the outlet port 6b is connected to the inlet port 2a of the first hydraulic motor 2 in the second main circuit 14.
  • the outlet port 2 b is connected to the inlet port 4 a of the second hydraulic motor 4 in the third main circuit 15, and the outlet port 4 b is connected to the drain path 16.
  • the auxiliary circuit 13 is connected to a first bypass passage 18 by a first switching valve 17. Communication ⁇ It is cut off.
  • the first bypass passage 18 is connected to the third main circuit 15 and has a throttle 19. Further, the auxiliary circuit 13 is communicated with the second bypass passage 21 by the second switching valve 20 and is shut off.
  • the second bypass path 21 is connected to the second main circuit 14, and the throttle 22 is provided.
  • the main switching valve 11 is set to the shut-off position a by the panel force, and is set to the supply position b when the solenoid 11 a is energized.
  • the first and second switching valves 17 and 20 are brought into the shut-off position c by spring force, and become the communication positions d when the solenoids 17 a and 20 a are energized, respectively. .
  • the second and third main circuits 14 and 15 are connected to a tank 25 via a suction valve 23 and a relief valve 24, respectively.
  • the first, second, and third hydraulic motors 2, 4, and 6 are configured such that the pressures (inlet pressures) of the inlet ports 2a, 4a, and 6a are equal to the pressures (outlet pressures) of the outlet ports 2b, 4b, and 6b.
  • P1> P2 steady pressure
  • the solenoid 11a of the main switching valve 11 is energized to the supply position b, and the solenoids of the first and second switching valves 17 and 20 are turned on. Energize the nodes 17a and 20a, respectively, to set the communication position d.
  • the discharge pressure oil of the hydraulic pump 10 is supplied to the inlet port 6a of the third hydraulic motor 6 in the first main circuit 12 and to the inlet port of the first hydraulic motor 4 in the first bypass passage 18. 4a to the outlet port 2b of the first hydraulic motor 2 and the second bypass path 21 to the inlet port 2a of the first hydraulic motor 2 and the outlet port 6b of the third hydraulic motor 6, respectively. Is performed.
  • the outlet pressure of the first hydraulic motor 2 becomes the steady pressure P2 and the inlet pressure becomes the starting pressure P1, so that the discharge pressure of the hydraulic pump 10 becomes the normal pressure P2 + the starting pressure P1.
  • the motor 2 starts to start, and then the pressure of the first hydraulic motor 2 becomes twice the steady-state pressure P2, but the pressure of the auxiliary circuit 13 is maintained at the above-mentioned pressure P3 by the restriction 22 of the first bypass passage 21 Is done.
  • the inlet pressure of the third hydraulic motor 6 becomes P3 and the outlet pressure becomes (2 XP 2), so that the discharge pressure of the hydraulic pump 10 becomes the steady pressure (P2 X 2) + the starting pressure P 1 (3)
  • the first, second, and third hydraulic motors 2, 4, and 6 need only have the pressure difference between the inlet pressure and the outlet pressure equal to the starting pressure P1 at which the starting torque is generated.
  • Each hydraulic motor can be a small hydraulic motor, and the maximum discharge pressure of the hydraulic pump 10 is equal to the starting pressure P1 + the steady pressure (P2 X 2).
  • the discharge pressure oil of the hydraulic pump 10 flows sequentially through the third hydraulic motor 6, the first hydraulic motor 2, and the second hydraulic motor 4, and flows through the first and second bypass passages 18, 21. Does not flow, so that each hydraulic motor can be reliably driven without malfunction.
  • the controller 30 controls the energization of the solenoids 11a and 20a of the first and second switching valves 17 and 20.
  • 1, 1st, 2nd pressure sensors 31, 32 that detect the pressure in the second bypass passages 18, 21, and the start switch 3 connected to the controller 30 3 is provided.
  • the controller 30 When a start signal is input from the start switch 33, the controller 30 energizes the solenoids 17a and 20a of the first and second switching valves 17 and 20. The communication position d.
  • the first pressure sensor 31 detects the pressure P1
  • the power supply to the solenoid 17a is stopped
  • the first switching valve 17 is set to the shut-off position d
  • the second pressure sensor 32 is set to the pressure P1.
  • P3 the power supply to the solenoid 20a is stopped, and the second switching valve 20 is set to the shut-off position d.
  • the auxiliary circuit 13 is connected to the first and second bypass paths 18 and 21, and the first and second bypass paths 18 and 19 are respectively throttled 19 and 19. 22 is provided.
  • the second, first, and third hydraulic motors 4, 2, and 6 are sequentially activated based on the same principle as in the first embodiment.
  • the hydraulic motors 6, 2, and 4 are connected in series by connecting the outlet port and the inlet port of the adjacent hydraulic motor with the main circuits 14 and 15, and located at one end.
  • a hydraulic pump 10 and a tank are in contact with the hydraulic motor inlet port 6a and the hydraulic motor outlet port 4b located at the other end via the main switching valve 11 respectively.
  • Bypass paths 18 and 21 are provided for connecting the main circuits 15 and 14 with the motor side circuit of the main switching valve 11 respectively.
  • the bypass paths 18 and 21 are provided in the respective bypass paths 18 and 21. Since at least one of the switching valves 17 and 20 and the throttles 19 and 22 are provided respectively, the switching valves 17 and 20 are connected to each other, and then the throttles 19 and 20 are connected.
  • By the action of 22 or by sequentially closing the switching valves 17 and 20 or by the action of the throttles 19 and 22 only Since starting can be started sequentially from the hydraulic motor 4 farthest from the hydraulic pump 10, the maximum discharge pressure of the hydraulic pump 10 can be set to the starting pressure + the steady pressure X (the number of hydraulic motors-1). And the driving device becomes inexpensive. Also, since the starting pressure supplied to the hydraulic motor is smaller than when all hydraulic motors are started simultaneously, the hydraulic motor can be downsized.
  • bypass valves 18 and 21 are provided with switching valves 17 and 20 for connecting and disconnecting the bypass passages

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)

Abstract

Un mélangeur-désintégrateur comporte une pluralité de rotors (3, 5, 7) disposés en rotation dans un logement (1) et des moteurs hydrauliques à huile respectifs (2, 4, 6) pour entraîner les rotors respectifs. Les orifices de sortie (6b, 2b) et les orifices d'entrée (2a, 4a) des moteurs hydrauliques à huile adjacents sont reliés ensemble par des circuits principaux (14, 15) permettant de relier les moteurs hydrauliques à huile en série. Une pompe hydraulique à huile (10) et un réservoir sont reliés respectivement à l'orifice d'entrée (6a) du moteur hydraulique à huile situé à une extrémité et à l'orifice de sortie (4b) du moteur hydraulique à huile situé à l'autre extrémité, par l'intermédiaire d'une valve de commutation principale (11). Des passages de contournement (18, 21) permettent de relier ensemble les circuits principaux respectifs (15, 14) et les circuits côté moteur de la valve de commutation principale. Au moins une des valves de commutation (17, 20) et une des valves d'étranglement (19, 22) sont disposées dans les passages de contournement respectifs, pour assurer l'ouverture et la fermeture de ces passages de contournement.
PCT/JP1996/002459 1995-08-31 1996-08-30 Dispositif d'entrainement pour un melangeur-desintegrateur WO1997007878A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19681540T DE19681540T1 (de) 1995-08-31 1996-08-30 Vorrichtung zum Antreiben einer Brech-/Zerkleinerungsmischmaschine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP7/223413 1995-08-31
JP22341395A JP3358774B2 (ja) 1995-08-31 1995-08-31 解砕混合機の駆動装置

Publications (1)

Publication Number Publication Date
WO1997007878A1 true WO1997007878A1 (fr) 1997-03-06

Family

ID=16797762

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1996/002459 WO1997007878A1 (fr) 1995-08-31 1996-08-30 Dispositif d'entrainement pour un melangeur-desintegrateur

Country Status (4)

Country Link
JP (1) JP3358774B2 (fr)
KR (1) KR100341137B1 (fr)
DE (1) DE19681540T1 (fr)
WO (1) WO1997007878A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102535436A (zh) * 2011-12-26 2012-07-04 龙工(上海)机械制造有限公司 一种全液压驱动搅拌固化机的搅拌轮多轮同步装置
CN105561842A (zh) * 2016-01-22 2016-05-11 苏州奥然日用品有限公司 一种简易夹持机构的化工混合原料快速搅拌机构

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100496831B1 (ko) * 2002-07-24 2005-06-22 쿄오까도엔지니어링가부시기가이샤 지반주입장치 및 주입공법
CN105179340B (zh) * 2015-09-10 2017-06-06 北汽福田汽车股份有限公司 混凝土泵车及其搅拌液压系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS632520Y2 (fr) * 1979-10-14 1988-01-22
JPH0316827Y2 (fr) * 1986-08-11 1991-04-10
JPH04353403A (ja) * 1991-02-19 1992-12-08 Apv Chem Mach Inc 高出力連続加工機械およびその操作方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS632520Y2 (fr) * 1979-10-14 1988-01-22
JPH0316827Y2 (fr) * 1986-08-11 1991-04-10
JPH04353403A (ja) * 1991-02-19 1992-12-08 Apv Chem Mach Inc 高出力連続加工機械およびその操作方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102535436A (zh) * 2011-12-26 2012-07-04 龙工(上海)机械制造有限公司 一种全液压驱动搅拌固化机的搅拌轮多轮同步装置
CN102535436B (zh) * 2011-12-26 2014-06-18 龙工(上海)机械制造有限公司 一种全液压驱动搅拌固化机的搅拌轮多轮同步装置
CN105561842A (zh) * 2016-01-22 2016-05-11 苏州奥然日用品有限公司 一种简易夹持机构的化工混合原料快速搅拌机构
CN105561842B (zh) * 2016-01-22 2017-09-29 苏州奥然日用品有限公司 一种简易夹持机构的化工混合原料快速搅拌机构

Also Published As

Publication number Publication date
KR970009892A (ko) 1997-03-27
JP3358774B2 (ja) 2002-12-24
JPH0966226A (ja) 1997-03-11
KR100341137B1 (ko) 2002-11-29
DE19681540T1 (de) 1999-03-11

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