Variable-speed manual valve worm-gear case drive unit
A technology of manual valves and driving devices, which is applied in the direction of gear transmissions, transmissions, belts/chains/gears, etc. It can solve problems such as unreasonable, not allowing too many people to operate, and long time required to open and close large valves. Achieve the effect of solving the long time of manual operation, easy opening and closing of the valve, and simple structure
Inactive Publication Date: 2012-07-04
金显静
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Extra-large caliber valves require manual operation in some environments. Since the valve worm gear box has only one speed ratio, two solutions are usually adopted at home and abroad: 1. Increase the speed ratio to open the extra-large valve, which leads to the opening and closing As a result of the long time required for extra large valves, it may affect the operation of the pipeline, which is unreasonable
2. Increase the input torque to achieve the opening and closing of the super large valve, which leads to the need for multiple people to operate the opening and closing of the super large valve, but some space, or the environment, or the limitations of the mechanism of the valve worm gear box itself, etc., are not allowed Too many people operate, it is not difficult to see that there are great limitations in the operation of manually opening and closing large valves at home and abroad
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0010] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0011] like figure 1 , figure 2 , image 3 As shown in , the present invention includes a gear reduction system and a worm gear reduction system connected with the gear reduction system. The handwheel 1 is fixed on the input shaft 8 of the primary transmission gearbox 2, and slides on the input shaft 8 of the primary transmission gearbox 2. A dynamic dual gear 3 is sleeved, and the output shaft 9 of the primary transmission gearbox 2 is fixed with a static dual gear 4 that can mesh with the dynamic dual gear 3. The output shaft 9 of the primary transmission gearbox 2 is connected to the first The input shaft 16 of the second-stage worm gear reduction box 5 is connected by three claws 10, the worm 11 of the second-stage worm gear reduction box 5 is fixed on the input shaft 16 of the second-stage worm gear reduction box 5, and the second-stage...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a variable-speed manual valve worm-gear case drive unit which comprises a gear reduction train and a worm gear reduction train connected with the gear reduction train, wherein a handwheel is fixed on the input shaft of a change gear case; the output shaft of the worm gear reduction box is connected with a valve; the input shaft of the change gear case is provided with a movable multi-link gear in a sliding way; the output shaft of the change gear case is fixed with a fixed multi-link gear which engages with the movable multi-link gear; and the output shaft of the change gear case is connected with the input shaft of the worm gear reduction train. The invention has the advantages of simple structure and adjustable speed ratio. The user can open the valve by firstlyadjusting to low speed ratio. When it is hard for the user to open or close the valve, the user can switch to the high speed ratio by using the handle, thereby greatly increasing the torque, so that the valve can be easily opened or closed. Thus, the invention overcomes the defect of long time or too many people needed for operation when manually opening or closing oversize valves, so that peoplecan operate the outsize valves in a humanized way.
Description
Technical field [0001] The invention relates to a worm gear reduction box, in particular to a variable speed manual valve worm gear box driving device. Background technique [0002] At present, the valve worm gear box produced at home and abroad is a single speed ratio valve worm gear box, that is, a valve worm gear box has only one speed ratio. Extra-large caliber valves require manual operation in some environments. Since the valve worm gear box has only one speed ratio, two solutions are usually adopted at home and abroad: 1. Increase the speed ratio to open the extra-large valve, which leads to the opening and closing As a result of the long time required for extra large valves, it may affect the operation of the pipeline, which is unreasonable. 2. Increase the input torque to achieve the opening and closing of the super large valve, which leads to the need for multiple people to operate the opening and closing of the super large valve, but some space, or the environmen...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F16H3/00
CPCF16H1/16
Inventor 金显静
Owner 金显静