CN212177906U - Valve opening indicator for bevel gear transmission rising stem gate valve - Google Patents
Valve opening indicator for bevel gear transmission rising stem gate valve Download PDFInfo
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- CN212177906U CN212177906U CN202020462549.3U CN202020462549U CN212177906U CN 212177906 U CN212177906 U CN 212177906U CN 202020462549 U CN202020462549 U CN 202020462549U CN 212177906 U CN212177906 U CN 212177906U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 66
- 230000000630 rising effect Effects 0.000 title claims abstract description 31
- 238000005192 partition Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to a valve opening indicator for a bevel gear transmission rising stem gate valve, which comprises an indicator shell, an adjustable speed ratio gear set, a fixed speed ratio gear set and a pointer indicating mechanism; the indicator shell is provided with a supporting shaft I, a transmission shaft and a supporting shaft II in parallel, the adjustable speed ratio gear set comprises a driving gear I, a duplicate gear I and an output gear I, and the fixed speed ratio gear set comprises a driving gear II, a duplicate reduction gear set and an output gear II; the pointer indicating mechanism comprises a scale dial and a pointer, the scale dial is fixedly arranged on the indicator shell, and the pointer is fixedly connected with the output gear II. The utility model discloses can accurate instruction valve degree of opening and close, avoid closing the problem of dislocation in the in-service use, the utility model relates to a valve technical field.
Description
Technical Field
The utility model relates to the technical field of valves, more specifically relate to a bevel gear transmission rising stem valve is valve aperture indicator for gate valve.
Background
The existing large-caliber bevel gear transmission rising stem gate valve is a bevel gear transmission rising stem gate valve without a valve opening indicator. When the valve is opened or closed, the hand wheel is rotated to rotate the gear shaft, the bevel gear is driven to rotate, so that the hollow shaft and the valve rod nut connected with the spline of the hollow shaft are driven to rotate, and the trapezoidal threads on the valve rod nut of the gate valve and the bevel gear transmission device are used for driving the flashboard of the gate valve to ascend or descend so as to open or close the gate valve. Wherein the bevel gear transmission has a transmission ratio of i1The numerical value is the ratio of the tooth number of the bevel gear to the tooth number of the gear shaft.
The rising stem gate valve is not provided with a valve opening degree or position indicating mechanism, when the rising stem gate valve is opened or closed, the opening degree of the valve can be roughly judged only by the length of the extending part of the valve rod, and the opening and closing position of the valve cannot be accurately judged. Therefore, the accurate opening and closing position of the gate plate and the opening degree of the gate valve cannot be known when the gate valve is opened and closed, particularly, when the gate valve is closed, the bevel gear transmission device is in conical gear transmission, so that a large transmission ratio exists, large torque can be transmitted, the function of amplifying input torque at the hand wheel position is achieved, the phenomenon that the gate plate is closed to be in an over-position state can be caused when the gate valve is closed, the gate valve is not sealed tightly and is leaked, and the gate valve can be damaged seriously. Therefore, there is a need for improvements in the prior art.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the valve opening indicator for the bevel gear transmission rising stem gate valve can accurately indicate the opening position of the valve.
In order to solve the technical problem, the utility model discloses a technical scheme be:
the utility model provides a bevel gear transmission rising stem valve is valve opening indicator for gate valve which characterized in that: the device comprises an indicator shell, an adjustable speed ratio gear set, a fixed speed ratio gear set and a pointer indicating mechanism;
the indicator shell is provided with a supporting shaft I, a transmission shaft and a supporting shaft II in parallel, the supporting shaft I and the supporting shaft II are fixedly connected with the indicator shell, and the transmission shaft is rotatably connected with the indicator shell;
the adjustable speed ratio gear set comprises a driving gear I, a duplicate gear I and an output gear I, wherein the driving gear I is rotatably arranged on an indicator shell, the duplicate gear I is sleeved on a supporting shaft I in a hollow mode, a large gear of the duplicate gear I is meshed with the driving gear I, a small gear of the duplicate gear I is meshed with the output gear I, and the output gear I is fixedly connected with a transmission shaft;
the fixed speed ratio gear set comprises a driving gear II, a duplex reduction gear set and an output gear II, the driving gear II is fixedly arranged on the transmission shaft, the duplex reduction gear set comprises an input duplex gear and an output duplex gear, the input duplex gear is meshed with the driving gear II, and the output duplex gear is meshed with the output gear II;
the pointer indicating mechanism comprises a scale dial and a pointer, the scale dial is fixedly arranged on the indicator shell, and the pointer is fixedly connected with the output gear II.
Further, the stroke of the flashboard of the bevel gear transmission rising stem gate valve is defined as H, the thread lead of the valve rod is defined as P, the included angle between two limit scale marks of the scale dial is defined as beta, and the transmission ratio of the bevel gear transmission device is defined as i1Then the transmission ratio i of the adjustable-ratio gear set2Fixed ratio gear set drive ratio i3Satisfies the following formula:
furthermore, the indicator shell comprises a box body, a partition plate and a gear box cover, the fixed speed ratio gear set is arranged in the box body, the adjustable speed ratio gear set is arranged at the opening end of the box body, and the gear box cover is detachably connected with the box body; the gear set with the adjustable speed ratio is sealed in the box body through the box cover;
the baffle is fixedly connected with the box body, and the scale dial is fixedly arranged on the baffle.
Furthermore, the indicator comprises a connecting plate, the connecting plate is fixedly connected with the box body, and the box body is fixed on the bevel gear transmission rising stem gate valve through the connecting plate.
Furthermore, the driving gear I is sleeve-shaped, the inner diameter size of the driving gear I and the outer diameter of a gear shaft of the bevel gear transmission rising stem gate valve which is matched with the driving gear I meet clearance fit, and the driving gear I is fixedly connected with the gear shaft of the bevel gear transmission rising stem gate valve, so that the driving gear I and the gear shaft of the bevel gear transmission rising stem gate valve synchronously rotate.
Furthermore, gears included in the adjustable speed ratio gear set and the fixed speed ratio gear set are straight gears.
Furthermore, the scale dial plate is fan-shaped, scale marks distributed in the fan shape are arranged on the scale dial plate, the scale marks divide the full scale of the scale dial plate into forty equal parts, and each ten scales are marked with a mark value which respectively corresponds to 0%, 25%, 50%, 75% and 100% of the opening of the gate valve.
Compared with the prior art, the utility model beneficial effect who has does:
1. the utility model discloses a gear graduation principle, through multistage reduction gears, can accurate instruction valve aperture.
2. The gears of different adjustable speed ratio gear sets can be conveniently replaced after the gear box cover is disassembled, and different transmission ratios can be realized by matching and using the gears with different tooth numbers, so that the gear box is suitable for opening indication of valves with different specifications.
3. The installation is convenient, and when the valve aperture indicator was installed, only need to replace former bevel gear transmission's side cap with the connecting plate, set up pointer initial condition, cup jointed adjustable velocity ratio gear train driving gear I on the gear shaft of bevel gear transmission rising stem gate valve and fixed with holding screw, can observe the actual open position of valve in scale dial plate department.
Drawings
The following will explain in further detail embodiments of the present invention with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a sectional view of the present invention;
FIG. 3 is a schematic diagram of the present invention;
fig. 4 is an installation schematic diagram of the present invention.
In the figure: the bevel gear transmission device comprises a bevel gear transmission device 1, a box body 2, a gear shaft 3, a gear box cover 4, a scale dial 5, a connecting plate 6, a driving gear I7, a duplicate gear I8, an output gear I9, an adjustable speed ratio gear set 10, a duplicate reduction gear set 11, a first duplicate gear 12, a second duplicate gear 13, a third duplicate gear 14, a fourth duplicate gear 15, a fifth duplicate gear 16, a driving gear II 17, an output gear II 18, a pointer 19, a partition plate 20, a supporting shaft I22, a transmission shaft 23 and a supporting shaft II 24.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example (b):
as shown in fig. 1 to 4, a valve opening indicator for a bevel gear transmission rising stem gate valve comprises an indicator shell, an adjustable speed ratio gear set 10, a fixed speed ratio gear set and a pointer indicating mechanism;
the indicator shell comprises a box body 2, a partition plate 20, a gear box cover 4 and a connecting plate 6, wherein a fixed speed ratio gear set is arranged in the box body 2, an adjustable speed ratio gear set 10 is arranged at the opening end of the box body 2, the gear box cover 4 and the partition plate 20 are installed on the box body 2 through screws, a scale dial 5 is fixedly arranged on the partition plate 20, the connecting plate 6 is connected with the box body 2 through screws, the connecting plate 6 replaces a side cover on an original bevel gear transmission device during use, and the connecting plate 6 is fixed on the box body of the bevel gear transmission device through screws;
the indicator shell is parallelly provided with a supporting shaft I22, a transmission shaft 23 and a supporting shaft II 24, the supporting shaft I22 and the supporting shaft II 24 are fixedly connected with the indicator shell, and the transmission shaft 23 is rotatably connected with the indicator shell.
The adjustable speed ratio gear set 10 comprises a driving gear I7, a duplicate gear I8 and an output gear I9, wherein the driving gear I7 is in a sleeve shape and is rotatably arranged on the lower side of an indicator shell, a gear shaft 3 of the bevel gear transmission device 1 penetrates through a central hole of the driving gear I7 and is fixed with the driving gear I7 through a set screw, the duplicate gear I8 is freely sleeved on a supporting shaft I22, a large gear of the duplicate gear I8 is meshed with the driving gear I7, a small gear of the duplicate gear I8 is meshed with the output gear I9, and the output gear I9 is fixedly connected with a transmission shaft 23 through the set screw;
the fixed speed ratio gear set comprises a driving gear II 17, a duplex reduction gear set 11 and an output gear II 18, the driving gear II 17 is fixedly arranged on a transmission shaft 23 through a set screw, the duplex reduction gear set 11 comprises 5 identical duplex gears which are respectively a first duplex gear 12, a second duplex gear 13, a third duplex gear 14, a fourth duplex gear 15 and a fifth duplex gear 16, a large gear of the first duplex gear 12 is meshed with the driving gear II 17, a small gear of the first duplex gear 12 is meshed with a large gear of the second duplex gear 13, a small gear of the second duplex gear 13 is meshed with a large gear of the third duplex gear 14, a small gear of the third duplex gear 14 is meshed with a large gear of the fourth duplex gear 15, a small gear of the fourth duplex gear 15 is meshed with a large gear of the fifth duplex gear 16, a small gear of the fifth duplex gear 16 is meshed with the output gear II 18, the first duplicate gear 12, the third duplicate gear 14 and the fifth duplicate gear 16 are respectively sleeved on the supporting shaft II 24 in an empty way, and the second duplicate gear 13 and the fourth duplicate gear 15 are respectively sleeved on the transmission shaft 23 in an empty way;
the pointer indicating mechanism comprises a scale dial 5 and a pointer 19, wherein the scale dial 5 is fixedly arranged on the partition plate, the shaft of the output gear II 18 penetrates through the scale dial 5, the pointer 19 is fixedly arranged on the shaft of the output gear II 18, and the pointer 19 rotates along with the rotation of the shaft of the output gear II 18.
Definition bevel gear transmissionThe stroke of the flashboard of the movable rising stem gate valve is H, the thread lead of the valve rod is P, the included angle of two limit scale marks of the scale dial 5 is beta, and the transmission ratio of the bevel gear transmission device 1 is i1Then the gear ratio i of the adjustable-ratio gear set 102Fixed ratio gear set drive ratio i3Satisfies the following formula:
the gears included in the adjustable speed ratio gear set 10 and the fixed speed ratio gear set are straight gears.
The scale dial 5 is designed to be fan-shaped, scale marks distributed in the fan shape are arranged on the scale dial 5, the scale marks divide the full scale of the scale dial 5 into forty equal parts, each ten scales are marked with one marking value and respectively correspond to 0%, 25%, 50%, 75% and 100% of the opening of the gate valve, and the two limit scales are respectively marked with OPEN and CLOSE and respectively correspond to the opening and closing limit positions of the gate valve.
The using method comprises the following steps:
1) according to the specification of the bevel gear transmission rising stem gate valve and the transmission ratio i of the fixed speed ratio gear set3Determining the gear ratio i of the adjustable-ratio gear set 102Changing the adjustable speed ratio gear set of the valve opening indicator to meet the transmission ratio i2A gear set of (a);
2) rotating the driving gear I7 to enable the pointer 19 to point to the initial position of the scale dial 5;
3) the device is arranged on the bevel gear transmission rising stem gate valve through the connecting plate 6, the driving gear I7 and the gear shaft 3 of the bevel gear transmission rising stem gate valve are fixed together through the set screw, and the opening and closing degree of the gate valve can be determined through the dial 5 and the pointer 19.
The above description has been made in detail only for the preferred embodiment of the present invention, but the present invention is not limited to the above embodiment, and various changes can be made without departing from the spirit of the present invention within the knowledge scope of those skilled in the art, and all such changes are intended to be encompassed by the present invention.
Claims (7)
1. The utility model provides a bevel gear transmission rising stem valve is valve opening indicator for gate valve which characterized in that: the gear indicator comprises an indicator shell, an adjustable speed ratio gear set (10), a fixed speed ratio gear set and a pointer indicating mechanism;
the indicator is characterized in that a supporting shaft I (22), a transmission shaft (23) and a supporting shaft II (24) are arranged on the indicator shell in parallel, the supporting shaft I (22) and the supporting shaft II (24) are fixedly connected with the indicator shell, and the transmission shaft (23) is rotatably connected with the indicator shell;
the adjustable speed ratio gear set (10) comprises a driving gear I (7), a duplicate gear I (8) and an output gear I (9), wherein the driving gear I (7) is rotatably arranged on an indicator shell, the duplicate gear I (8) is sleeved on a supporting shaft I (22) in an empty mode, a large gear of the duplicate gear I (8) is meshed with the driving gear I (7), a small gear of the duplicate gear I (8) is meshed with the output gear I (9), and the output gear I (9) is fixedly connected with a transmission shaft (23);
the fixed speed ratio gear set comprises a driving gear II (17), a duplex reduction gear set (11) and an output gear II (18), the driving gear II (17) is fixedly arranged on a transmission shaft (23), the duplex reduction gear set (11) comprises an input duplex gear and an output duplex gear, the input duplex gear is meshed with the driving gear II (17), and the output duplex gear is meshed with the output gear II (18);
the pointer indicating mechanism comprises a scale dial (5) and a pointer (19), the scale dial (5) is fixedly arranged on the indicator shell, and the pointer (19) is fixedly connected with the output gear II (18).
2. The valve opening indicator for the bevel gear transmission rising stem gate valve according to claim 1, wherein: the stroke of a flashboard of the bevel gear transmission rising stem gate valve is defined as H, the thread lead of a valve rod is defined as P, the included angle of two extreme scale marks of a scale dial (5) is defined as beta, and the transmission ratio of a bevel gear transmission device is defined as i1The transmission ratio i of the adjustable-ratio gear set (10)2Fixed ratio gear set drive ratio i3Satisfies the following formula:
3. the valve opening indicator for the bevel gear transmission rising stem gate valve according to claim 1, wherein: the indicator shell comprises a box body (2), a partition plate (20) and a gear box cover (4), the fixed speed ratio gear set is arranged in the box body (2), the adjustable speed ratio gear set (10) is arranged at the opening end of the box body (2), and the gear box cover (4) is detachably connected with the box body (2);
baffle (20) and box (2) fixed connection, scale dial plate (5) are fixed to be set up on baffle (20).
4. The valve opening indicator for the bevel gear transmission rising stem gate valve according to claim 1, wherein: the box body is characterized by further comprising a connecting plate (6), wherein the connecting plate (6) is fixedly connected with the box body (2).
5. The valve opening indicator for the bevel gear transmission rising stem gate valve according to claim 1, wherein: the driving gear I (7) is sleeve-shaped, the inner diameter size of the driving gear I (7) and the outer diameter of a gear shaft (3) of the bevel gear transmission rising stem gate valve matched with the driving gear I (7) meet clearance fit, and the driving gear I (7) is fixedly connected with the gear shaft (3) of the bevel gear transmission rising stem gate valve.
6. The valve opening indicator for the bevel gear transmission rising stem gate valve according to claim 1, wherein: the gears contained in the adjustable speed ratio gear set (10) and the fixed speed ratio gear set are straight gears.
7. The valve opening indicator for the bevel gear transmission rising stem gate valve according to claim 1, wherein: the scale dial plate (5) is fan-shaped, scale marks distributed in the fan shape are arranged on the scale dial plate, the scale marks divide the full scale of the scale dial plate into forty equal parts, and each ten scales are marked with a mark value which respectively corresponds to 0%, 25%, 50%, 75% and 100% of the opening of the gate valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020462549.3U CN212177906U (en) | 2020-04-02 | 2020-04-02 | Valve opening indicator for bevel gear transmission rising stem gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020462549.3U CN212177906U (en) | 2020-04-02 | 2020-04-02 | Valve opening indicator for bevel gear transmission rising stem gate valve |
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| Publication Number | Publication Date |
|---|---|
| CN212177906U true CN212177906U (en) | 2020-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020462549.3U Active CN212177906U (en) | 2020-04-02 | 2020-04-02 | Valve opening indicator for bevel gear transmission rising stem gate valve |
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| CN (1) | CN212177906U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113757444A (en) * | 2021-09-26 | 2021-12-07 | 珠海优特电力科技股份有限公司 | Valve state sensing device |
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2020
- 2020-04-02 CN CN202020462549.3U patent/CN212177906U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113757444A (en) * | 2021-09-26 | 2021-12-07 | 珠海优特电力科技股份有限公司 | Valve state sensing device |
| CN113757444B (en) * | 2021-09-26 | 2023-09-22 | 珠海优特电力科技股份有限公司 | Valve state sensing device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A valve opening indicator for umbrella gear transmission rising stem gate valves Effective date of registration: 20231215 Granted publication date: 20201218 Pledgee: Bank of China Yangquan Branch Pledgor: YANGQUAN VALVE Co.,Ltd. Registration number: Y2023140000066 |