CN204114323U - Extension rod butterfly valve difference tooth transmission opening indicator device - Google Patents
Extension rod butterfly valve difference tooth transmission opening indicator device Download PDFInfo
- Publication number
- CN204114323U CN204114323U CN201420513046.9U CN201420513046U CN204114323U CN 204114323 U CN204114323 U CN 204114323U CN 201420513046 U CN201420513046 U CN 201420513046U CN 204114323 U CN204114323 U CN 204114323U
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- CN
- China
- Prior art keywords
- gear
- butterfly valve
- extension rod
- gear ring
- indicator device
- 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.)
- Withdrawn - After Issue
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- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The utility model relates to extension rod butterfly valve difference tooth transmission opening indicator device, comprise casing, be positioned at the gear disk of casing upper surface, and the input shaft be arranged in casing, first gear, second gear and the first gear ring be connected with gear matches, second gear ring, first gear and the second gear concentric, first gear ring and the second gear ring all with input shaft concentric, first geared sleeve is located on input shaft, second gear is connected with the first gear spot welding, gear is equal with the modulus of gear ring, the number of teeth of gear is less than gear ring, first gear ring connects gear disk and driven gear dish rotates.Compared with prior art, the utility model solves the problem that existing underground pipe network extension rod butterfly valve is difficult to learn the keying degree of valve.
Description
Technical field
The utility model relates to a kind of butterfly valve opening machinery indicating device, especially relates to extension rod butterfly valve difference tooth transmission opening indicator device.
Background technique
Before saying, mostly conventional butterfly valve is to adopt the transmission device of worm and gear composition to control the opening and closing of butterfly valve.The opening indicator device of butterfly valve is located at the axle head of butterfly valve, and dial is fixed on Worm gear case, and pointer is fixed on worm gear.And most butterfly valve generally all installs extension rod additional and extends to terrestrial operation on Worm gear case input shaft in underground pipe network, during operation, be difficult to the keying degree from judging valve in appearance.Owing to not knowing keying degree, easily occur flap closed position after stuck, the flap of flap to be not closed completely the phenomenon such as to leak, even can cause the damage of valve, and valve is once damage, and cannot ensure the normal operation of pipe network.
Application number is that the Chinese patent of 200620166931.X discloses butterfly valve butterfly plate indicator of opening, have the flange plate be connected with stem shaft synchronous axial system part in the lower end of drive screw, stop screw is equipped with in its upper end, and this stop screw is fixed in drive screw by tensioner screw and nut.Instruction nut is fitted on drive screw, and instruction cover is fastened on position limit socket and puts, and the bar shaped leg that the opening end wall of instruction cover has two to stretch out, leg internal fixtion has cylindricality connecting pin.Outer needle dial is made up of pointer and the interior Rotary-table by shallow bore hole, and outer needle dial is fixed by screws on instruction cover.Position limit socket cover top is provided with the position-limited claw contour with indicating the rotation leg of cover, and interior spline protrudes key with the bar shaped of instruction nut and is connected, outside keyway and gland dial lower end extension key tabling.Although this indicator can conveniently indicate the aperture of butterfly valve, but fracture because bar shaped leg wherein and position-limited claw are easily worn in use, and the shallow bore hole on round platform also can wear and tear, cause shorten working life and reduce the accuracy of aperture.
Model utility content
The purpose of this utility model is exactly be difficult to learn the problem of the keying degree of valve to solve existing underground pipe network extension rod butterfly valve and provide a kind of extension rod butterfly valve difference tooth transmission opening indicator device.
The purpose of this utility model can be achieved through the following technical solutions:
Extension rod butterfly valve difference tooth transmission opening indicator device, comprises casing, is positioned at the gear disk of casing upper surface and is arranged on the input shaft of casing, the first gear, the second gear and the first gear ring be connected with gear matches, the second gear ring,
The first described gear and the second gear concentric, the first described gear ring and the second gear ring all with input shaft concentric, the first geared sleeve is located on input shaft, second gear is connected with the first gear spot welding, gear is equal with the modulus of gear ring, and the number of teeth of gear is less than gear ring
The first described gear ring connects gear disk and driven gear dish rotates.
The centre of described input shaft is eccentric shaft part, and the lower end surface of this eccentric axle head is positioned on casing by plane bearing, and the first described gear is set on eccentric shaft part through thrust-bearing.
The first described gear is poor with the number of teeth of the first gear ring and the second gear is equal with the number of teeth difference of the second gear ring.
Calibrated scale on described gear disk is calculated by butterfly valve self worm operation machine speed ratio and difference tooth transmission opening indicator device speed ratio.
Described input shaft connects the transmission shaft of butterfly valve extension rod by key.
Described casing is connected on the sheathed casing of butterfly valve extension rod.
When handwheel drives input shaft to rotate, first gear and the second gear and input shaft synchronous axial system, because the second gear ring maintains static, second gear and the second gear ring are when implementing intermittent engagement, second gear is slowed down, also can implement interval with the first gear ring with the first gear of the second gear-linked to engage, while engagement driving, the first gear ring drives needle dial to rotate, and makes the pointer on needle dial accurately can indicate the unlatching of valve or the position of closedown.
Compared with prior art, the utility model well solves the problem that existing underground pipe network extension rod butterfly valve is difficult to learn the keying degree of valve, the poor tooth transmission opening indicator device that the utility model provides is compact, lightweight, output gear range is large, and the butterfly valve that can be met the Worm Wheel System of different bore by the angular distribution of adjustment panel high scale chi installs extension rod operation additional, and the utility model is easy to manufacture, structure is simple, with low cost.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that the utility model is connected with extension rod butterfly valve;
Fig. 2 is the utility model structural representation;
Fig. 3 is that the utility model gear coordinates exploded perspective schematic diagram;
Fig. 4 is the utility model schematic appearance;
In figure, 1, input shaft; 2, needle dial; 3, the first gear; 4, the first gear ring; 5, mark closely; 6, screw; 7, the second gear ring; 8, the second gear; 9, spot welding; 10, plane bearing; 11, key; 12, lower end surface; 13, lower box; 14, eccentric shaft part; 15, screw; 16, upper box; 17, thrust-bearing; 18, actuator; 19, sheathed casing; 20, transmission shaft; 21, pointer; 22, calibrated scale.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Embodiment
Extension rod butterfly valve difference tooth transmission opening indicator device, as Figure 1-4, structure mainly comprises upper box 16, lower box 13, pointer 21, input shaft 1, first gear 3, first gear ring 4, second gear 8, second gear ring 7, the needle dial 2 be arranged in casing to its structure.Be eccentric shaft part 14 in the middle of input shaft 1, the lower end surface 12 of eccentric shaft part 14 is positioned on lower box 13 by plane bearing 10, and input shaft 1 connects the transmission shaft 20 of butterfly valve extension rod by key 11; First gear 3 is set on eccentric shaft part 14 via thrust-bearing 17; Second gear 8 is fixed on the first gear 3 by spot welding 9, the second gear 8 and the first gear 3 concentric; First gear 3 and the second gear 8 are engaged with the first gear ring 4 and the second gear ring 7 respectively; First gear ring 4, via screw 15 fixed pointers dish 2, drives needle dial 2 to rotate, and the first gear ring 4 and input shaft 1 concentric; Pointer 21 is welded on needle dial 2; Second gear ring 7 is fixed on lower box 13 via marking closely 5, and the second gear ring 7 and input shaft 1 concentric; Upper box 16 and lower box 13 are fixed together via screw 6, and lower box 13 is fixed on the sheathed casing 19 of butterfly valve extension rod; First gear 3, first gear ring 4, second gear 8, second gear ring 7 modulus is equal, and the number of teeth of the first gear ring 4 and the first gear 3 difference is equal with the number of teeth difference of the second gear ring 7 and the second gear 8, the number of teeth of the first gear 3, second gear 8 is less than the first gear ring 4, second gear ring 7; The panel of upper box 16 is provided with and calculates by butterfly valve self worm operation machine speed ratio and difference tooth transmission opening indicator device speed ratio the calibrated scale 22 got for showing butterfly valve opening situation; When actuator 18 drives input shaft 1 to rotate, first gear 3 and the second gear 8 and input shaft 1 synchronous axial system, because the second gear ring 7 maintains static, second gear 8 and the second gear ring 7 are when implementing intermittent engagement, second gear 8 is slowed down, first gear 3 of taking turns interlock with the second tooth 8 also can be implemented intermittently to engage with the first gear ring 4 simultaneously, and while engagement driving, the first gear ring 4 drives needle dial 2 to rotate, and the pointer 21 on needle dial 2 accurately can indicate the unlatching of valve or the position of closedown.By being connected with a joggle of gear and gear ring, making driving mechanism be not easy to be worn, more difficult generation stress rupture, thus can working life be improved.
Claims (6)
1.
a kind ofextension rod butterfly valve difference tooth transmission opening indicator device, it is characterized in that, this device comprises casing, be positioned at the gear disk of casing upper surface and be arranged on the input shaft of casing, the first gear, the second gear and the first gear ring be connected with gear matches, the second gear ring
The first described gear and the second gear concentric, the first described gear ring and the second gear ring all with input shaft concentric, the first geared sleeve is located on input shaft, second gear is connected with the first gear spot welding, gear is equal with the modulus of gear ring, and the number of teeth of gear is less than gear ring
The first described gear ring connects gear disk and driven gear dish rotates.
2. a kind of extension rod butterfly valve difference tooth transmission opening indicator device according to claim 1, it is characterized in that, the centre of described input shaft is eccentric shaft part, the lower end surface of this eccentric axle head is positioned on casing by plane bearing, and the first described gear is set on eccentric shaft part through thrust-bearing.
3. a kind of extension rod butterfly valve difference tooth transmission opening indicator device according to claim 1, it is characterized in that, the first described gear is poor with the number of teeth of the first gear ring and the second gear is equal with the number of teeth difference of the second gear ring.
4. a kind of extension rod butterfly valve difference tooth transmission opening indicator device according to claim 1, is characterized in that, the calibrated scale on described gear disk is calculated by butterfly valve self worm operation machine speed ratio and difference tooth transmission opening indicator device speed ratio.
5. a kind of extension rod butterfly valve difference tooth transmission opening indicator device according to claim 1, it is characterized in that, described input shaft connects the transmission shaft of butterfly valve extension rod by key.
6. a kind of extension rod butterfly valve difference tooth transmission opening indicator device according to claim 1, it is characterized in that, described casing is connected on the sheathed casing of butterfly valve extension rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420513046.9U CN204114323U (en) | 2014-09-05 | 2014-09-05 | Extension rod butterfly valve difference tooth transmission opening indicator device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420513046.9U CN204114323U (en) | 2014-09-05 | 2014-09-05 | Extension rod butterfly valve difference tooth transmission opening indicator device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204114323U true CN204114323U (en) | 2015-01-21 |
Family
ID=52331634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420513046.9U Withdrawn - After Issue CN204114323U (en) | 2014-09-05 | 2014-09-05 | Extension rod butterfly valve difference tooth transmission opening indicator device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204114323U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265989A (en) * | 2014-09-05 | 2015-01-07 | 上海骐荣机械自控有限公司 | Differential gear transmission opening indicator for extension rod butterfly valve |
-
2014
- 2014-09-05 CN CN201420513046.9U patent/CN204114323U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265989A (en) * | 2014-09-05 | 2015-01-07 | 上海骐荣机械自控有限公司 | Differential gear transmission opening indicator for extension rod butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150121 Effective date of abandoning: 20170125 |
|
| AV01 | Patent right actively abandoned |