WO1983001022A1 - Hydraulic control unit - Google Patents

Hydraulic control unit Download PDF

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Publication number
WO1983001022A1
WO1983001022A1 PCT/RO1982/000006 RO8200006W WO8301022A1 WO 1983001022 A1 WO1983001022 A1 WO 1983001022A1 RO 8200006 W RO8200006 W RO 8200006W WO 8301022 A1 WO8301022 A1 WO 8301022A1
Authority
WO
WIPO (PCT)
Prior art keywords
hydraulic
machine
hydraulic control
tool
oil circulation
Prior art date
Application number
PCT/RO1982/000006
Other languages
French (fr)
Inventor
DE STRUNGURI - TIRGOVISçTE INTREPRINDEREA
Original Assignee
NEGRITU, Valentin;
Semciuc, Bogdan
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20110455&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1983001022(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by NEGRITU, Valentin;, Semciuc, Bogdan filed Critical NEGRITU, Valentin;
Publication of WO1983001022A1 publication Critical patent/WO1983001022A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/02—Driving main working members
    • B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
    • B23Q5/12—Mechanical drives with means for varying the speed ratio
    • B23Q5/14—Mechanical drives with means for varying the speed ratio step-by-step
    • B23Q5/145—Mechanical drives with means for varying the speed ratio step-by-step fluid-operated
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
    • F16L39/04—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies allowing adjustment or movement
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • F16D2048/0224—Details of conduits, connectors or the adaptors therefor specially adapted for clutch control
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • F16D2048/0227—Source of pressure producing the clutch engagement or disengagement action within a circuit; Means for initiating command action in power assisted devices
    • F16D2048/0233—Source of pressure producing the clutch engagement or disengagement action within a circuit; Means for initiating command action in power assisted devices by rotary pump actuation
    • F16D2048/0245—Electrically driven rotary pumps

Definitions

  • This invention relates to a hydraulic control and execution unit for machine-tools .
  • Hydraulic control and execution units provided with hydraulic clutches and friction disks are already known.
  • the clutches are hydraulically engaged and disengaged , oil circulating through external pipes and holes provided in the shaft on which the two clutches are mounted, which is also called clutch shaft.
  • the hydraulic unit embodyinc the invention removes these disadvantases bv that, that in order to achieve a small sized unit, with possibilities for movement reversal within a short time, said hydraulic unit is provided with hi draulic unit is provided with hydraulic clutches mounted on a shaft which hass a polyhedral profile, oil circulation being provided by a distributing block made up of distribution plates which have internal grooves through which oil circulates, thus actuating the friction disks of the hydraulic clutches and providing movement transmission tc the main spindle of the machine- tool .
  • the hydraulic control unit embodying the invention presents the following advantages :
  • FIG. 1 is an axial sectional view of the. clutch shaft assembly .
  • FIG. 2 is a sectional view taken along the line I-I in
  • FIG. 1 is a fragsentsry sectional view of a hydraulic unit.
  • FIG. 4 is a sectional view of a distributing blcck in one of the executions .
  • FIG. 5 is a sectional view taken along the line II-II in
  • FIG. 4 is a sectional view taken along the line III-III in FIG. 4 .
  • FIG. 7 is a view of the distributing block assembly , in another execution .
  • FIG. 8 is a sectional view taken along the line IV - IV in FIG. 7 .
  • FIG. 9 is a sectional view taken along the line V - V in
  • FIG. 7 is a sectional view taken along the line VI - VI in FIG. 7 .
  • FIG.11 is a sectional view taken along the line VII - VII in FIG. 7 .
  • FIG.12 is an axial sectional view of the hydraulic clutch.
  • FIG.13 is a front view of the clutch .
  • FIG .14 is a sectional view taken along the line VIII-VIII in FIG. 7 .
  • FIG.15 is .a sectional view taken along the line IX - IX in FIG. 7 .
  • FIG.16 is a hydraulic drive diagram, of the clutch .
  • the hydraulic unit aobodying the invention is made-up, as sho wn in FIG.1 , of a motor 1 for the machinetool main drive , which transmits movement in two directions. Part of the movement is transmitted to a clutch shaft 2 which has a polyhedral profile a which transmits movement to hydraulic clutches A.
  • a pump 3 which absorbs oil from an oil tank 4 of the machine - tool and delivers it, according to FIG. 3 , through a hose 5 , a filter 6 and a housing 7 of the gearbox, to a distributing block B .
  • the distributing block B shewn in FIG.4, in one execution, is made-up of a plate 8 and a cennection piste 9 , oil circulation between the two plates 8 and 9 being achieved through holes b sealed with packing rings 10 .
  • connection plate 9 is clamped in plate 8 by means of screws 11 .
  • the distributing block B in another execution, is achieved by the rectangular plates 13 snd 14 which overlap and are assembled by centering pins 15 and screws 16.
  • Semigrcoves c and d are provided in plates 13 and 14 and make-up a common groove e for oil circulation, when plates 13 and 14 are joined together; This arrangement provides an easier realisation and cleaning, from technological point of view, of groove e .
  • a pressure gauge 17 is mounted on the distributing block B.
  • the two hydraulic clutches A are mounted on clutch shaft 2 and consist of clutch flanges 18 and friction disks 19.
  • one clutch or the other is engaged by means of electrodistributor 20 , oil circulating through distribution grooves f to distributor 21. From here, through central holes g and port H oil reaches piston 22 and pushes it against friction disks 19. Movement is further transmitted by gear 23 to the machine-tool gearbox.
  • the hydraulic clutch A is disengaged by operating electrodistributor 20. Since oil no longer acts or piston 22, springs 24 in couple 25 which has a polyhedral bore i disengage piston 22. Cil in excess in distributing block B flows through valve 26 to housing 7 of the gearbox,theough lubrication distributor 27 and a lubrication and cooling pipe 28, to an integrated tank, not shown in the drawings , of the machine-tool bed .
  • the clutch shaft on which, the t wo hydraulic clutches are mounted can he removed from housing 7 by looseni ng screws 29 .
  • the hydraulic unit' embodying the invention has applications in any kind of machine-tool reqr-iring an element for continuous or intermittent movement transmissi on from , the main drive motor to the gesrbex, Such as lathes , milling machines , etc.-

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

A hydraulic control and execution unit for rotational movement transmission to the main spindle of the machine-tool, in both directions, and the rest position of the main spindle. The hydraulic control and execution unit is made-up of a hydraulic control unit under the form of plates fixed on the wall of the gearbox housing by screws on which the three-position electrodistributor and the system pressure regulating valve are mounted and a shaft with polyhedral profile on which two hydraulic clutches are mounted as execution elements for transmitting one rotational direction or the other and for the rest position of the main spindle, without stopping the main drive motor of the machine-tool.

Description

HYDRAULIC CONTROL UNIT
Technical Field
This invention relates to a hydraulic control and execution unit for machine-tools .
Background Art
Hydraulic control and execution units provided with hydraulic clutches and friction disks are already known. The clutches are hydraulically engaged and disengaged , oil circulating through external pipes and holes provided in the shaft on which the two clutches are mounted, which is also called clutch shaft.
These hydraulic units have the disadvantage that the external pipes cause power less in the hydraulic system,the clutch feedback being high.At the same time, due to the tension concentrators in the grooved area the shaft resistance is lower.
Disclosure of Invention
The hydraulic unit embodyinc the invention removes these disadvantases bv that, that in order to achieve a small sized unit, with possibilities for movement reversal within a short time, said hydraulic unit is provided with hi draulic unit is provided with hydraulic clutches mounted on a shaft which hass a polyhedral profile, oil circulation being provided by a distributing block made up of distribution plates which have internal grooves through which oil circulates, thus actuating the friction disks of the hydraulic clutches and providing movement transmission tc the main spindle of the machine- tool .
The hydraulic control unit embodying the invention, presents the following advantages :
- rapid troubleshooting
- short operating time
- small size
Brief Description of Drawnigs Below is given an exemple of this invention related to Figs . 1 - 16 which represent : - FIG. 1 is an axial sectional view of the. clutch shaft assembly . FIG. 2 is a sectional view taken along the line I-I in
FIG. 1. FIG. 3 is a fragsentsry sectional view of a hydraulic unit. FIG. 4 is a sectional view of a distributing blcck in one of the executions . FIG. 5 is a sectional view taken along the line II-II in
FIG. 4. FIG. 6 is a sectional view taken along the line III-III in FIG. 4 . FIG. 7 is a view of the distributing block assembly , in another execution . FIG. 8 is a sectional view taken along the line IV - IV in FIG. 7 . FIG. 9 is a sectional view taken along the line V - V in
FIG. 7 . FIG.10 is a sectional view taken along the line VI - VI in FIG. 7 . FIG.11 is a sectional view taken along the line VII - VII in FIG. 7 . FIG.12 is an axial sectional view of the hydraulic clutch. FIG.13 is a front view of the clutch . FIG .14 is a sectional view taken along the line VIII-VIII in FIG. 7 . FIG.15 is .a sectional view taken along the line IX - IX in FIG. 7 . FIG.16 is a hydraulic drive diagram, of the clutch .
Best Mode of Carrying Cut the Invention
The hydraulic unit aobodying the invention is made-up, as sho wn in FIG.1 , of a motor 1 for the machinetool main drive , which transmits movement in two directions. Part of the movement is transmitted to a clutch shaft 2 which has a polyhedral profile a which transmits movement to hydraulic clutches A.
Another part of the movement is transmitted to a pump 3 which absorbs oil from an oil tank 4 of the machine - tool and delivers it, according to FIG. 3 , through a hose 5 , a filter 6 and a housing 7 of the gearbox, to a distributing block B .
The distributing block B , shewn in FIG.4, in one execution, is made-up of a plate 8 and a cennection piste 9 , oil circulation between the two plates 8 and 9 being achieved through holes b sealed with packing rings 10 .
The connection plate 9 is clamped in plate 8 by means of screws 11 .
The distributing block B , in another execution, is achieved by the rectangular plates 13 snd 14 which overlap and are assembled by centering pins 15 and screws 16. Semigrcoves c and d are provided in plates 13 and 14 and make-up a common groove e for oil circulation, when plates 13 and 14 are joined together; This arrangement provides an easier realisation and cleaning, from technological point of view, of groove e . A pressure gauge 17 is mounted on the distributing block B.
The two hydraulic clutches A are mounted on clutch shaft 2 and consist of clutch flanges 18 and friction disks 19.
To operate the machine-tool, one clutch or the other is engaged by means of electrodistributor 20 , oil circulating through distribution grooves f to distributor 21. From here, through central holes g and port H oil reaches piston 22 and pushes it against friction disks 19. Movement is further transmitted by gear 23 to the machine-tool gearbox.
The hydraulic clutch A is disengaged by operating electrodistributor 20. Since oil no longer acts or piston 22, springs 24 in couple 25 which has a polyhedral bore i disengage piston 22. Cil in excess in distributing block B flows through valve 26 to housing 7 of the gearbox,theough lubrication distributor 27 and a lubrication and cooling pipe 28, to an integrated tank, not shown in the drawings , of the machine-tool bed . The clutch shaft on which, the t wo hydraulic clutches are mounted can he removed from housing 7 by looseni ng screws 29 .
Industrial Applicability
The hydraulic unit' embodying the invention has applications in any kind of machine-tool reqr-iring an element for continuous or intermittent movement transmissi on from , the main drive motor to the gesrbex, Such as lathes , milling machines , etc.-

Claims

Claims
1. A hydraulic control unit wherein, in to achieve a small sised unit with possibilities for movement transmission and reversal in both directions, within a short, said hydraulic control unit is provided with a distributing block (B) and a hydraulic clutch shaft assembly (2) on which hydraulic clutches (A) are mounted, oil circulation in the distributing blcck (3) being achieved through grcoves(b) sealed with packing rings (10), said grooves(b) being provided in a plate (8) and a connection plate (9), distributing block (E) being clamped by screws (12) straight on the back side of housing (7) of the machine-tool gearbox, which permits oil circulation from an electrodistributor (20) through distribution grooves (f) in housing (7) through central holes(g) in clutch shaft (2) to friction disks (19) of the hydraulic clutches (A) which are pressed and transmit movement to a gear (23) which further transmits movement to the machine-tool gearbox .
2. The hydraulic unit set forth in claim 1 wherein the distributing block (3) can also be achieved, in another execution, by plates ( 13,14 ) in which semi-grooves
( c and d ) are provided, which make up a common groove ( e ) for oil circulation when plates ( 13 and 14 ) are joined together by centering pins (15). and screws (16) .
3. The hydraulic unit set forth in claim 1 , wherein said clutch shaft (2) has a polyhedral profile(a) which permits the arrangement of central holes (g) for oil circulation.
4. The hydraulic unit set forth in claim 1 , wherein oil in excess in the distributing block 5 flows through valve ( 2c ) to housing ( 1) of the gearbox , to lubrication distributer ( 27 ) and lubrication and cooling pipe ( 28 ) , to an integrated tank of the machine-tool bed.
PCT/RO1982/000006 1981-09-21 1982-09-14 Hydraulic control unit WO1983001022A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RO81105343A RO79533A2 (en) 1981-09-21 1981-09-21 HYDRAULIC CONTROL BLOCK
RO105.343810921 1981-09-21

Publications (1)

Publication Number Publication Date
WO1983001022A1 true WO1983001022A1 (en) 1983-03-31

Family

ID=20110455

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RO1982/000006 WO1983001022A1 (en) 1981-09-21 1982-09-14 Hydraulic control unit

Country Status (2)

Country Link
RO (1) RO79533A2 (en)
WO (1) WO1983001022A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102588369A (en) * 2012-02-23 2012-07-18 江正庆 Numerical control hydraulic control unit

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE212119C (en) *
US2979963A (en) * 1957-12-17 1961-04-18 Borg Warner Hydraulic clutch control
US3175411A (en) * 1962-06-25 1965-03-30 Douglas F Mcfarland Multi-speed transmission
DE2919180A1 (en) * 1979-05-12 1980-12-04 Forkardt Paul Kg DEVICE FOR SUPPLYING PRESSURE OIL FROM A STATIONARY PRESSURE OIL SOURCE TO A ROTATING SHAFT
GB1587699A (en) * 1978-05-31 1981-04-08 British Twin Disc Ltd Gearboxes
DE3005863A1 (en) * 1980-02-16 1981-08-20 SMW Schneider & Weißhaupt GmbH, 7996 Meckenbeuren Feeding of hydraulic fluid from fixed to rotating component - has fixed component with radial channels and rotating component with collecting chamber
DE3016589A1 (en) * 1980-04-30 1981-11-05 Albert Ing.(grad.) 2800 Bremen Zimmer Rotary distributor with stationary rotor housing - comprises central core with longitudinal grooves over which sleeve is inserted to form passages

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE212119C (en) *
US2979963A (en) * 1957-12-17 1961-04-18 Borg Warner Hydraulic clutch control
US3175411A (en) * 1962-06-25 1965-03-30 Douglas F Mcfarland Multi-speed transmission
GB1587699A (en) * 1978-05-31 1981-04-08 British Twin Disc Ltd Gearboxes
DE2919180A1 (en) * 1979-05-12 1980-12-04 Forkardt Paul Kg DEVICE FOR SUPPLYING PRESSURE OIL FROM A STATIONARY PRESSURE OIL SOURCE TO A ROTATING SHAFT
DE3005863A1 (en) * 1980-02-16 1981-08-20 SMW Schneider & Weißhaupt GmbH, 7996 Meckenbeuren Feeding of hydraulic fluid from fixed to rotating component - has fixed component with radial channels and rotating component with collecting chamber
DE3016589A1 (en) * 1980-04-30 1981-11-05 Albert Ing.(grad.) 2800 Bremen Zimmer Rotary distributor with stationary rotor housing - comprises central core with longitudinal grooves over which sleeve is inserted to form passages

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102588369A (en) * 2012-02-23 2012-07-18 江正庆 Numerical control hydraulic control unit

Also Published As

Publication number Publication date
RO79533B1 (en) 1983-08-30
RO79533A2 (en) 1983-09-26

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