CN204300488U - A kind of butterfly valve drive unit - Google Patents
A kind of butterfly valve drive unit Download PDFInfo
- Publication number
- CN204300488U CN204300488U CN201420722933.7U CN201420722933U CN204300488U CN 204300488 U CN204300488 U CN 204300488U CN 201420722933 U CN201420722933 U CN 201420722933U CN 204300488 U CN204300488 U CN 204300488U
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- China
- Prior art keywords
- worm
- gear
- shaft
- gear case
- worm screw
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Abstract
A kind of butterfly valve drive unit, comprise worm gear case, worm sector and worm screw is provided with in worm gear case, one end of worm screw is stretched out from the worm screw installing hole worm gear case, worm gear case is provided with gear housing, worm shaft gear is provided with, two shaft transmission gears being provided with the first gear shaft, the second gear shaft in gear housing and being located on the second gear shaft at the external part of worm screw; The bottom opening of worm gear case, opening part is provided with bottom end cover, bottom end cover is provided with worm-wheel shaft and stretches out hole, and the outer rim that worm-wheel shaft stretches out hole is provided with the first projection, and the top of worm gear case is provided with the installing port of indicating dial, the outer rim of installing port is provided with the second projection, the bottom of worm sector is provided with lower seam, and top is provided with seam, and the upper end of worm sector is provided with installs projection, projection is installed and is provided with indicating dial, below bottom end cover, be provided with flange.Compact conformation, dismounting is easy to maintenance, speed changing force-saving, uses reliable.
Description
Technical field
The utility model relates to a kind of butterfly valve, especially relates to a kind of butterfly valve drive unit.
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.
In addition, the worm gear case that butterfly valve worm gear drive of the prior art adopts, is top-open, and bottom is non-dismountable connection with the sidewall of worm gear case.When worm gear is installed need worm gear to put into worm gear case from above, after installing, case lid is bolted from above.The upper end of worm gear case is so not only made to use a large amount of bolts, and need to be connected with valve body additionally by a link, described link is typically provided with upper flange for being connected with worm gear case and the lower flange for being connected with valve body, thus causes between worm gear case with link and also needs to adopt a large amount of bolts to be fixedly connected with.Such drive unit not only complex structure, making consumptive material is time-consuming, and arrange towards sky due to upper end when valve body uses being worm gear case, thus unavoidably to suffer wind and weather, detachable maintaining is difficult in order to avoid bolt gets rusty, usual needs adopt anti-corrosion measure in addition, so just further increase production cost.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of butterfly valve drive unit, compact conformation, and volume is little, can meet valve opening speed change and labour-saving needs, and uses reliable dismounting easy to maintenance.
The utility model for solving the problems of the technologies described above adopted technical scheme is: a kind of butterfly valve drive unit, 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 on the gear box cover that is fixedly connected with gear housing side, and stretch out gear housing from gear housing to this side, 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, the bottom of described worm gear case is provided with opening, bottom end cover is provided with at opening part, described bottom end cover and worm gear case are bolted to connection, bottom end cover is provided with worm-wheel shaft and stretches out hole, the outer rim of stretching out hole along worm-wheel shaft is inwardly provided with the first projection, top and the worm-wheel shaft of worm gear case stretch out corresponding position, hole and are provided with installing port for installing indicating dial, inwardly be provided with for worm sector is carried out to axial limiting second protruding in the outer rim of installing port, the bottom of described worm sector is provided with the lower seam for being supported in the first projection, the upper seam for matching with the second projection is provided with on the top of worm sector, the installation being also provided with extended installing port in the upper end of worm sector is protruding, installation projection is provided with indicating dial, the flange for being connected with valve body is provided with by connector below bottom end cover.
Further, described gear housing is set between the worm screw installing hole of worm gear case and worm screw by the tubular projection on it.
Further, 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 nearly worm gear case one end and the annular groove matched in clearance be located on gear housing.
Further, be also provided with the counterbore with worm screw coaxial line at described worm shaft gear away from one end of worm gear case, be provided with zanjon bearing in described counterbore, one end of the first described gear shaft is arranged in the endoporus of zanjon bearing.
Further, opposite side relative with worm screw on worm gear case, is parallelly provided with two for carrying out spacing adjusting bolt to the rotation of worm sector, described adjusting bolt and the perpendicular setting of worm screw.
Further, be also provided with outward extending flange in the outer rim of installing port, described indicating dial is circular, and its external diameter is larger than installing protruding external diameter, and larger than the upper end external diameter of flange.
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; The utility model adopts the opening of worm gear case 9 to be located at the structure of bottom in addition; worm gear can adopt the form of lower dress; the top of worm gear case no longer includes a large amount of bolt exposed; bottom end cover use connecting bolt be protected in again below whole worm gear case; thus solve bolt and to get rusty the problem of not easily detachable maintaining, reduce maintenance cost.
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.
Fig. 2 is the A-A view of Fig. 1.
In figure, 1, lid is female, 2, nut, 3, adjusting bolt, 4, worm sector, 401, lower seam, 402, upper seam, 403, install protruding, 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 is protruding, 11, two shaft transmission gears, 12, gear box cover, 13, second gear shaft, 14, first gear shaft, 15, zanjon bearing, 16, worm shaft travelling gear, 16-1, annular projection, 17, indicating dial, 18, bottom end cover, 1801, first is protruding, 1802, second is protruding, 1803, flange, 19, flange.
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, as herein described own with accompanying drawing 1 consistent up and down up and down.
As shown in the figure, a kind of butterfly valve drive unit, 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, one end of worm screw 8 is provided with closed rear end cap 5, it is protruding that described rear end cap 5 is provided with the shell-like extended in worm gear case 9, described self-lubricating bearing 6 and the endoporus interference fit of described shell-like projection, this end excircle of worm screw 8 and the endoporus of self-lubricating bearing 6 are matched in clearance.
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 in nearly worm gear case 9 one 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 on the gear box cover 12 that is fixedly connected with gear housing 10 side, and stretches out gear housing 10 from gear housing 10 to this side; 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 in one end away from worm gear case 9 of described worm shaft gear 16, be provided with zanjon bearing 15 in described counterbore, one 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 at this 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 for limiting
The adjusting bolt 3 of the position of rotation of 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.
The bottom of described worm gear case 9 is provided with opening, opening part is provided with bottom end cover 18, described bottom end cover 18 is bolted to connection with worm gear case 9, bottom end cover 18 is provided with worm-wheel shaft and stretches out hole (not shown worm-wheel shaft), the outer rim of stretching out hole along worm-wheel shaft is inwardly provided with the first projection 1801, top and the worm-wheel shaft of worm gear case 9 stretch out corresponding position, hole and are provided with installing port for installing indicating dial 17, the second projection 1802 for carrying out axial limiting to worm sector 4 is inwardly provided with in the outer rim of installing port, the bottom of described worm sector 4 is provided with the lower seam 401 for being supported in the first projection 1801, the upper seam 402 for matching with the second projection 1802 is provided with on the top of worm sector 4, the annular projection 403 of extended installing port is also provided with in the upper end of worm sector 4, installation protruding 403 is provided with indicating dial 17.
Also be provided with outward extending flange 1803 in the outer rim of installing port, described indicating dial 17 is circular, and its external diameter is larger than the external diameter installing protruding 403, and larger than the upper end external diameter of flange 1803.Can ensure that rainwater can not enter worm gear case 9 from installing port like this, thus each part of protection worm gear case 9 inside is not by the erosion of rainwater.
The flange 19 for being connected with valve body is provided with by connector below bottom end cover 18;
Opposite side relative with worm screw 8 on worm gear case 9, spaced and parallelly be provided with two for carrying out spacing adjusting bolt 3 to the rotation of worm sector 4, described adjusting bolt 3 and the perpendicular setting of worm screw 8, and adopt a lid mother and a nut to carry out locking with locking simultaneously
According to structure of the present utility model, the opening of worm gear case 9 is located at bottom, during installation, open bottom end cover 12, by worm gear case 9 end upward, the upper seam 402 of worm sector 4 is supported in the second projection 1202, after then worm screw 8 also being installed, bottom end cover 12 is adopted together with bolt is fixedly connected with worm gear case 9.Last reset of being turned upside down by worm gear case 9 again, is fixedly mounted on indicating dial 11 and installs on protruding 403.
The utility model not only can save a large amount of bolts that dress formula drive unit uses, and connector is directly connected with bottom end cover 12, also saves one piece of adpting flange, thus simplifies the structure of worm gear case 9.In addition in such an embodiment, the top of worm gear case 9 no longer includes a large amount of bolt exposed, bottom end cover 12 use connecting bolt be protected in again below whole worm gear case 9, thus solve bolt and to get rusty the problem of not easily detachable maintaining.
Claims (6)
1. a butterfly valve drive unit, 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 on the gear box cover (12) that is fixedly connected with gear housing (10) side, and stretch out gear housing (10) from gear housing (10) to this side, 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, the bottom of described worm gear case (9) is provided with opening, bottom end cover (18) is provided with at opening part, described bottom end cover (18) and worm gear case (9) are bolted to connection, bottom end cover (18) is provided with worm-wheel shaft and stretches out hole, the outer rim of stretching out hole along worm-wheel shaft is inwardly provided with the first projection (1801), top and the worm-wheel shaft of worm gear case (9) stretch out corresponding position, hole and are provided with installing port for installing indicating dial (17), the second projection (1802) for carrying out axial limiting to worm sector (4) is inwardly provided with in the outer rim of installing port, the bottom of described worm sector (4) is provided with the lower seam (401) for being supported in the first projection (1801), the upper seam (402) for matching with the second projection (1802) is provided with on the top of worm sector (4), the installation projection (403) of extended installing port is also provided with in the upper end of worm sector (4), installation protruding (403) is provided with indicating dial (17), the flange (19) for being connected with valve body is provided with by connector in bottom end cover (18) below.
2. a kind of butterfly valve drive unit according to claim 1, is characterized in that: 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 tubular projection (10-1) on it.
3. a kind of butterfly valve drive unit according to claim 1, it is characterized in that: described worm shaft gear (16) is connected by key with between worm screw (8), worm shaft gear (16) is by being located at the annular projection (16-1) of its nearly worm gear case (9) one end and the annular groove matched in clearance be located on gear housing (10).
4. a kind of butterfly valve drive unit according to claim 1, it is characterized in that: be also provided with the counterbore with worm screw (8) coaxial line at described worm shaft gear (16) away from one end of worm gear case (9), be provided with zanjon bearing (15) in described counterbore, one end of described the first gear shaft (14) is arranged in the endoporus of zanjon bearing (15).
5. a kind of butterfly valve drive unit according to claim 1, it is characterized in that: at the upper opposite side relative with worm screw (8) of worm gear case (9), parallelly be provided with two for carrying out spacing adjusting bolt (3) to the rotation of worm sector (4), described adjusting bolt (3) and worm screw (8) perpendicular setting.
6. a kind of butterfly valve drive unit according to claim 1, it is characterized in that: be also provided with outward extending flange (1803) in the outer rim of installing port, described indicating dial (17) is circular, its external diameter is larger than the external diameter installing protruding (403), and larger than the upper end external diameter of flange (1803).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420722933.7U CN204300488U (en) | 2014-11-27 | 2014-11-27 | A kind of butterfly valve drive unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420722933.7U CN204300488U (en) | 2014-11-27 | 2014-11-27 | A kind of butterfly valve drive unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204300488U true CN204300488U (en) | 2015-04-29 |
Family
ID=53106029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420722933.7U Expired - Fee Related CN204300488U (en) | 2014-11-27 | 2014-11-27 | A kind of butterfly valve drive unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204300488U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455677A (en) * | 2014-11-27 | 2015-03-25 | 河南煜达阀门制造有限公司 | Drive device for butterfly valve |
| CN107461229A (en) * | 2017-10-10 | 2017-12-12 | 四川红光汽车机电有限公司 | The electronic air throttle body that a kind of new fan gear is connected with throttle plate pin |
-
2014
- 2014-11-27 CN CN201420722933.7U patent/CN204300488U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455677A (en) * | 2014-11-27 | 2015-03-25 | 河南煜达阀门制造有限公司 | Drive device for butterfly valve |
| CN107461229A (en) * | 2017-10-10 | 2017-12-12 | 四川红光汽车机电有限公司 | The electronic air throttle body that a kind of new fan gear is connected with throttle plate pin |
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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 |