GB525057A - Hydraulic control mechanism for the variable speed gear of machine tools - Google Patents
Hydraulic control mechanism for the variable speed gear of machine toolsInfo
- Publication number
- GB525057A GB525057A GB4691/39A GB469139A GB525057A GB 525057 A GB525057 A GB 525057A GB 4691/39 A GB4691/39 A GB 4691/39A GB 469139 A GB469139 A GB 469139A GB 525057 A GB525057 A GB 525057A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- line
- clutch
- pressure
- distributer
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
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
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
-
- 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
- F16H—GEARING
- F16H2710/00—Control devices for speed-change mechanisms, the speed change control is dependent on function parameters of the gearing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Transmission Device (AREA)
Abstract
525,057. Controlling change-speed gearing. SCHOENING, P., SCHOENING, A., and SHOENING, B. Feb. 13, 1939, No. 4691. Convention date, March 3, 1938. [Class 80 (ii)] In a hydraulic control of one or more gearshifter rods 9 wherein a pre-selective distributervalve 6 is put into communication with a pressure-pump 1 or accumulator through an executive-valve 4, which is normally open and is closed through a rack 15 by movement of a lever 12 to disengage a main-clutch 11, an additional valve 16 is arranged in the pressure-conduit 5 between the executive-valve 4 and the distributer-valve 6, the additional valve 16 being automatically closed by the clutch-control at the completion of a change. During normal running, Fig. 4, the valve 16 vents the input-line 17 of the distributer-valve 6 to exhaust 19, relieving it of any pressure so that the distributer-valve can easily be turned for pre-selective operation without having to stop the machine. During a change, the operation of the lever 12 to disengage the main-clutch 11 closes the executivevalve 4 thereby venting the main feeder-line 5 and relieving the pressure previously acting through a branch-line 18 on a piston-face 32 of the valve 16. A spring 21 thereupon moves the valve 16 to its extreme upper position, cutting off the branch-line 18 and vent-line 19 and connecting the feeder-line 5 with the distributervalve line 17. During re-engagement of the main-clutch 11 by return movement of the lever 12, the executive valve 4 is re-opened, putting the feeder-line 5, and with it the distributervalve line 17 under pressure, whereby the preselected change is effected. Towards the completion of clutch re-engagement, a projection 28 moving with the clutch-control presses the valve 16 downwardly to a position, Fig. 3, in which the pressure in the branch-line 18 can act on the piston-face 32, whereupon the valve 16 is rapidly moved to and held in its lower running position, Fig. 4, venting the distributer-valve 6.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE525057X | 1938-03-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB525057A true GB525057A (en) | 1940-08-21 |
Family
ID=6552479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4691/39A Expired GB525057A (en) | 1938-03-03 | 1939-02-13 | Hydraulic control mechanism for the variable speed gear of machine tools |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR850156A (en) |
| GB (1) | GB525057A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2537409A (en) * | 1944-07-29 | 1951-01-09 | Cincinnati Milling Machine Co | Jogging mechanism for machine tools |
-
1939
- 1939-02-10 FR FR850156D patent/FR850156A/en not_active Expired
- 1939-02-13 GB GB4691/39A patent/GB525057A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR850156A (en) | 1939-12-09 |
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