GB832749A - Improvements in or relating to belt drives - Google Patents
Improvements in or relating to belt drivesInfo
- Publication number
- GB832749A GB832749A GB1154755A GB1154755A GB832749A GB 832749 A GB832749 A GB 832749A GB 1154755 A GB1154755 A GB 1154755A GB 1154755 A GB1154755 A GB 1154755A GB 832749 A GB832749 A GB 832749A
- Authority
- GB
- United Kingdom
- Prior art keywords
- belt
- pivot
- headstock
- guard
- plate
- 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
-
- 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
- F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
- F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
- F16H9/04—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes
- F16H9/06—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a stepped pulley
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
832,749. Machinery guards; tensioning driving belts. ELLIOTT & CO. Ltd., B. July 23, 1956 [April 21, 1955], No. 11547/55. Classes 80 (1) and 80 (4). In belt gearing wherein a vertical drill spindle 14 is driven by an electric motor 16 through stepped pulleys 20, 22, the belt 24 and pulleys are surrounded by a guard wall 26 on a base-plate 34 pivoted at 30 and supporting the motor 16 so that tilting of the guard about the pivot 30 to the dotted line position slackens the belt and exposes the pulley 20 to facilitate belt-shifting. The plate 34 extends under the pulleys 22 and 20 and fits around the headstock 12 to allow the downward tilting movement. The motor 16 is supported on a bracket 32 secured by bolts 42 in slots in the plate 34 to allow the belt tension to be predetermined. The belt tension is then maintained by the weight of the motor 16, the tension being greatest when the belt is nearest the pivot 30, i.e. at low drill speeds. Clockwise tilting of the plate 34 is limited by a set-screw 45 adjustable in bracket 32 and abutting the headstock 12. The guard 26 may be held in the tilted position by a spring-loaded plunger (not shown), carried thereby and engageable with the headstock. In a modification the pivot 30 is replaced by a pivot at the end of the headstock 12 adjacent the motor 16 and a spring biases the guard to the tilted position. The guard is then retained in the horizontal working position by a spring-loaded plunger carried by the bracket 32 and engaging a stop on the headstock 12. According to the Provisional Specification the lugs engaging the pivot 30 are slotted and the belt tension is predetermined by adjustment of the plate 34 relative to the pivot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1154755A GB832749A (en) | 1955-04-21 | 1955-04-21 | Improvements in or relating to belt drives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1154755A GB832749A (en) | 1955-04-21 | 1955-04-21 | Improvements in or relating to belt drives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB832749A true GB832749A (en) | 1960-04-13 |
Family
ID=9988241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1154755A Expired GB832749A (en) | 1955-04-21 | 1955-04-21 | Improvements in or relating to belt drives |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB832749A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0149808A1 (en) * | 1983-12-27 | 1985-07-31 | Hanning Elektro-Werke GmbH & Co. | Multispeed transmission attachment for multipurpose electric motors |
| CN110159719A (en) * | 2019-05-15 | 2019-08-23 | 安徽延达智能科技有限公司 | A kind of belt connection four-wheel differentia drive mechanism |
-
1955
- 1955-04-21 GB GB1154755A patent/GB832749A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0149808A1 (en) * | 1983-12-27 | 1985-07-31 | Hanning Elektro-Werke GmbH & Co. | Multispeed transmission attachment for multipurpose electric motors |
| CN110159719A (en) * | 2019-05-15 | 2019-08-23 | 安徽延达智能科技有限公司 | A kind of belt connection four-wheel differentia drive mechanism |
| CN110159719B (en) * | 2019-05-15 | 2022-04-12 | 安徽延达智能科技有限公司 | A belt-connected four-wheel differential transmission structure |
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