CN204300494U - A kind of butterfly valve is used can labour-saving driving device - Google Patents
A kind of butterfly valve is used can labour-saving driving device Download PDFInfo
- Publication number
- CN204300494U CN204300494U CN201420723327.7U CN201420723327U CN204300494U CN 204300494 U CN204300494 U CN 204300494U CN 201420723327 U CN201420723327 U CN 201420723327U CN 204300494 U CN204300494 U CN 204300494U
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- CN
- China
- Prior art keywords
- gear
- shaft
- worm
- worm screw
- housing
- 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 - Fee Related
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Abstract
A kind of butterfly valve is with can labour-saving driving device, comprise turbine casing, fan-shaped turbine and worm screw is provided with in turbine casing, one end of worm screw is stretched out from the worm screw installing hole turbine casing, turbine casing is provided with gear housing, worm shaft gear is provided with at the external part of worm screw, the first gear shaft with worm screw coaxial line is provided with in gear housing, the second gear shaft paralleled with the first gear shaft and two shaft transmission gears be located on the second gear shaft, two shaft transmission gears are meshed with the gear segment on the first gear shaft, gear segment on second gear shaft is meshed with worm shaft gear, worm shaft gear is by being located at the annular projection of its one end and the annular groove matched in clearance be located on gear housing, the right-hand member of worm shaft gear is provided with the counterbore with worm screw coaxial line, is provided with zanjon bearing in counterbore, and the left end of the first gear shaft is arranged in the endoporus of zanjon bearing.Compact conformation, dismounting is easy to maintenance, and speed changing force-saving uses reliable.
Description
Technical field
The utility model relates to a kind of butterfly valve, and especially relating to a kind of butterfly valve use can labour-saving driving device.
Background technology
The version that a worm gear is meshed with worm screw is normally adopted in worm gear drive of the prior art, in order to laborsaving or speed change often adopt the structure of motor reducer one to realize during transmission, but this mode on the one hand motor reducer price comparison is high, motor reducer of the prior art is bulky in addition, cause the drive unit overall volume of butterfly valve bigger than normal, installation requirement condition is higher, thus cause the increase of production cost, and existing drive form is also unwell to the occasion of electricity consumption inconvenience.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of butterfly valve with can labour-saving driving device, and compact conformation, volume is little, can meet valve opening speed change and labour-saving needs.
The utility model for solving the problems of the technologies described above adopted technical scheme is: a kind of butterfly valve is with can labour-saving driving device, comprise worm gear case, the worm screw being provided with worm sector in worm gear case and being meshed with worm sector, one end of worm screw is stretched out from the worm screw installing hole be located at worm gear case, the external part that worm gear case is positioned at worm screw is provided with gear housing, worm shaft gear is provided with at the external part of worm screw, the first gear shaft with worm screw coaxial line is also provided with in gear housing, the second gear shaft paralleled with the first gear shaft and two shaft transmission gears be located on the second gear shaft, the input of the first described gear shaft is rotatably located at on the gear box cover be fixedly connected with on the right side of gear housing, and stretch out gear housing to the right from gear housing, two described shaft transmission gears are meshed with the gear segment on the first gear shaft, and the gear segment on described second gear shaft is meshed with worm shaft gear, the number of teeth of gear ratio two shaft transmission gear of the gear segment on the first gear shaft is few, and the reference diameter of the second gear shaft section of cogging is less than the reference diameter of two shaft transmission gears, and the number of teeth of the gear ratio worm shaft gear of the second gear shaft section of cogging is few, described worm shaft gear is connected by key with between worm screw, and worm shaft gear is by being located at the annular projection of its one end and the annular groove matched in clearance be located on gear housing, also be provided with the counterbore with worm screw coaxial line at the right-hand member of described worm shaft gear, be provided with zanjon bearing in described counterbore, the left end of the first described gear shaft is arranged in the endoporus of zanjon bearing.
Beneficial effect:
1, according to the utility model, a gear housing is added at the input of worm screw, first gear shaft by power after the gear segment on it and the deceleration between two shaft transmission gears again after the secondary speed-reducing between the gear segment on the second gear shaft and worm shaft gear, just drive worm screw rotate.Like this, while the rotating speed reducing worm screw, when applying identical power to the first gear shaft, larger moment of torsion is delivered to worm screw.Also serve labour-saving effect.
2, the utility model adopts gear housing further by the protruding mode be set in worm gear case of tubular, and the mode the first gear shaft is located at by zanjon bearing holder (housing, cover) in worm shaft gear counterbore, make the utility model compact conformation, dismounting is easy to maintenance, uses reliable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, 1, lid is female, 2, nut, 3, adjusting bolt, 4, worm sector, 5, rear end cap, 6, self-lubricating bearing, 7, thrust bearing, 8, worm screw, 9, worm gear case, 9-1, worm screw installing hole, 10, gear housing, 10-1, tubular are protruding, 11, two shaft transmission gears, 12, gear box cover, the 13, second gear shaft, the 14, first gear shaft, 15, zanjon bearing, 16, worm shaft travelling gear, 16-1, annular projection.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, concrete detailed description is further done to the utility model.
Convenient in order to describe, left and right as herein described is consistent with the left and right of accompanying drawing itself.
As shown in the figure, a kind of butterfly valve is with can labour-saving driving device, comprise worm gear case 9, the worm screw 8 being provided with worm sector 4 in worm gear case 9 and being meshed with worm sector 4, after the two ends of worm screw 8 are set with a thrust bearing 7, be fixed on worm gear case 9 respectively by a self-lubricating bearing 6 again, be provided with rear end cap 5 in one end of worm screw 8; The other end of worm screw 8 stretches out from the worm screw installing hole 9-1 be located at worm gear case 9, the external part that worm gear case 9 is positioned at worm screw 8 is provided with gear housing 10, described gear housing 10 is set between the worm screw installing hole 9-1 of worm gear case 9 and worm screw 8 by the protruding 10-1 of the tubular on it, the self-lubricating bearing being positioned at this end is just set in the endoporus of the protruding 10-1 of tubular, the endoporus interference fit of the protruding 10-1 of itself and tubular, and be matched in clearance between worm screw 8; Be interference fit between the self-lubricating bearing of the other end and rear end cap 5, and be also matched in clearance between worm screw 8.
The protruding 10-1 of the utility model employing tubular is set in the mode in worm screw installing hole 9-1, and not only compact conformation, can save installing space, and this structure also facilitates the dismounting of gear housing 10, and fully can ensure the intensity of gear housing 10.
Worm shaft gear 16 is provided with at the external part of worm screw 8, described worm shaft gear 16 is connected by key with between worm screw 8, annular projection 16-1 is provided with at the left end of worm shaft gear 16, gear housing 10 is provided with annular groove, the annular groove matched in clearance on described annular projection 16-1 and gear housing 10.Such structure can ensure the intensity of worm shaft gear 16, but also can save installing space.
Also be provided with in gear housing 10 and the first gear shaft 14 of worm screw 8 coaxial line, the second gear shaft 13 paralleled with the first gear shaft 14 and two shaft transmission gears 11 that are located on the second gear shaft 13.
The input of the first described gear shaft 14 is rotatably located at on the gear box cover 12 be fixedly connected with on the right side of gear housing 10, and stretches out gear housing 10 to the right from gear housing 10; Two described shaft transmission gears 11 are meshed with the gear segment on the first gear shaft 14, and the gear segment on described second gear shaft 13 is meshed with worm shaft gear 16; The number of teeth of gear ratio two shaft transmission gear 11 of the gear segment on the first gear shaft 14 is few, the reference diameter of the second gear shaft 13 section of cogging is less than the reference diameter of two shaft transmission gears 11, and the number of teeth of the gear ratio worm shaft gear 16 of the second gear shaft 13 section of cogging is few.
Like this when driving first gear shaft 14, first gear shaft 14 drives two shaft transmission gears 11 to be rotated in deceleration by the gear segment on it, gear segment on second gear shaft 13 rotates with identical rotating speed with two shaft transmission gears 11, and rotate after driving worm shaft gear 16 to slow down further, described worm shaft gear 16 drives worm screw 8 to rotate, move through the butterfly plate that worm sector 4 passes to the butterfly valve be connected with worm-wheel shaft the most at last, thus realize the opening and closing of valve.
Also be provided with the counterbore with worm screw 8 coaxial line at the right-hand member of described worm shaft gear 16, be provided with zanjon bearing 15 in described counterbore, the left end of the first described gear shaft 14 is arranged in the endoporus of zanjon bearing 15.This structure not only solves the support problem of the first gear shaft 14 left end, and can ensure not interfere with each other between worm shaft gear 16.
On described worm gear case 9, the opposite side relative with worm screw 8 is also provided with the adjusting bolt 3 of the position of rotation for limiting worm sector 4, described adjusting bolt 3 is two, and its parallel interval is arranged, and controls the extreme position of worm sector 4 in positive and negative both direction respectively.
The mode that described adjusting bolt 3 is combined by lid female 1 and nut 2 exits to prevent adjusting bolt 3 from unclamping, thus ensures the reliability of its limit function.
Claims (1)
1. a butterfly valve is with can labour-saving driving device, comprise worm gear case (9), the worm screw (8) being provided with worm sector (4) in worm gear case (9) and being meshed with worm sector (4), one end of worm screw (8) is stretched out from the worm screw installing hole (9-1) be located at worm gear case (9), it is characterized in that: the external part that worm gear case (9) is positioned at worm screw (8) is provided with gear housing (10), worm shaft gear (16) is provided with at the external part of worm screw (8), the first gear shaft (14) with worm screw (8) coaxial line is also provided with in gear housing (10), the second gear shaft (13) paralleled with the first gear shaft (14) and two shaft transmission gears (11) be located on the second gear shaft (13), the input of described the first gear shaft (14) is rotatably located at on the gear box cover (12) be fixedly connected with on the right side of gear housing (10), and stretch out gear housing (10) to the right from gear housing (10), described two shaft transmission gears (11) are meshed with the gear segment on the first gear shaft (14), and the gear segment on described second gear shaft (13) is meshed with worm shaft gear (16), the number of teeth of gear ratio two shaft transmission gear (11) of the gear segment on the first gear shaft (14) is few, the reference diameter of the second gear shaft (13) section of cogging is less than the reference diameter of two shaft transmission gears (11), and the number of teeth of the gear ratio worm shaft gear (16) of the second gear shaft (13) section of cogging is few, described worm shaft gear (16) is connected by key with between worm screw (8), and worm shaft gear (16) is by being located at the annular projection (16-1) of its one end and the annular groove matched in clearance be located on gear housing (10), also be provided with the counterbore with worm screw (8) coaxial line at the right-hand member of described worm shaft gear (16), be provided with zanjon bearing (15) in described counterbore, the left end of described the first gear shaft (14) is arranged in the endoporus of zanjon bearing (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420723327.7U CN204300494U (en) | 2014-11-27 | 2014-11-27 | A kind of butterfly valve is used can labour-saving driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420723327.7U CN204300494U (en) | 2014-11-27 | 2014-11-27 | A kind of butterfly valve is used can labour-saving driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204300494U true CN204300494U (en) | 2015-04-29 |
Family
ID=53106035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420723327.7U Expired - Fee Related CN204300494U (en) | 2014-11-27 | 2014-11-27 | A kind of butterfly valve is used can labour-saving driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204300494U (en) |
-
2014
- 2014-11-27 CN CN201420723327.7U patent/CN204300494U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20191127 |