CN210600398U - Opening and closing device for partial rotary valve - Google Patents
Opening and closing device for partial rotary valve Download PDFInfo
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- CN210600398U CN210600398U CN201921324477.XU CN201921324477U CN210600398U CN 210600398 U CN210600398 U CN 210600398U CN 201921324477 U CN201921324477 U CN 201921324477U CN 210600398 U CN210600398 U CN 210600398U
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Abstract
The utility model discloses a partial gyration valve headstock gear, including ring gear, driven gear, driving gear and stopper. The inner ring wall surface of ring gear is equipped with the teeth of a cogwheel, and several driven gear evenly distributes in the inner ring wall of ring gear and meshes with it, and the driving gear sets up in the central authorities of ring gear to mesh with all driven gear respectively. When the driving gear rotates, the driven gear is driven to rotate reversely and revolve around the driving gear in the same direction, so that the limiting block and the valve rod connected with the limiting block are driven to rotate, and the opening and closing of the valve are realized. When the hand wheel is rotated, the moment realizes the deceleration movement through the gear transmission, and the large torque is output, so that the valve is convenient to open and close. The load is distributed to the gear teeth of all the driven gears, so that the abrasion is reduced, the service life of the device is prolonged, and the reliability is improved. The utility model discloses having reduced the overall dimension of valve, having solved manual valve focus skew problem, both improved the adaptive environment ability of valve, improved the maneuverability of valve again.
Description
Technical Field
The utility model relates to a part gyration valve headstock gear for valve field.
Background
The common manual valve mainly has the following two realization modes in the opening and closing process, one mode is an operating mechanism with a worm gear reduction box, and the other mode is a handle (hand wheel) direct operating mechanism.
Referring to fig. 1, although the operating mechanism with the turbine reduction gearbox 1 has the advantages of smooth transmission, no noise, self-locking performance and the like, the transmission efficiency is low, and the axial force of the worm is large, so that the bearing is seriously abraded. In view of the whole valve, although the use of the worm gear reduction box 1 reduces the valve operating force, the whole valve has large space size, shift of gravity center and poor environmental adaptability, and the module integration application of an engineering system is also influenced.
Referring to fig. 2, the direct operation mechanism of the hand wheel can directly drive the valve rod to perform a turning motion of 0 to 90 degrees, and can also adjust the opening and closing degree of the valve. The size of the handle 2 (or the hand wheel) is designed according to the human engineering, and the valve can be opened and closed only by rotating the handle 2 (or the hand wheel), so that the problems of large space and gravity center shift of the valve are solved. But the opening and closing force distance is too large. Especially, when the valve is applied to the occasions of valves with large calibers and high differential pressure, the torque of the valve is very large, the required hand wheel operating force is large, and the opening and closing of the valve can not be realized through manpower.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art, provide a partial gyration valve headstock gear, can realize the light of valve and open and close.
One technical scheme for achieving the above purpose is as follows: a partial rotation valve opening and closing device is used for opening and closing a valve and comprises a hand wheel, a driving gear connected to the bottom of the hand wheel, a valve rod, a gear ring, a driven gear and a limiting block;
the surface of the inner ring wall of the gear ring is provided with gear teeth, a plurality of driven gears are uniformly distributed on the inner ring wall of the gear ring and are respectively meshed with the inner ring wall of the gear ring, and the driving gear is arranged in the center of the gear ring and is respectively meshed with all the driven gears; when the driving gear rotates, the driven gear is driven to conduct self-transmission, the rotating direction of the driven gear is opposite to that of the driving gear, and meanwhile when the driving gear rotates, the driven gear is driven to conduct revolution around the driving gear, and the rotating direction of the driven gear is the same as that of the driving gear;
a driven shaft is arranged in the center of the driven gear, the driven gear is arranged on a limiting block and is connected with the limiting block through the driven shaft, and when the driven gear revolves around the driving gear in the gear ring, the limiting block is driven to synchronously rotate;
and a valve rod of the valve is connected to the center of the limiting block.
Furthermore, the bottom of the limiting block is provided with a protruding sector plate, a packing box is arranged at the connecting part of the valve and the partial rotary valve opening and closing device, the packing box limits the rotation angle of the sector plate, and the position of the packing box is set according to the opening and closing position of the valve.
Still further, a valve rod connecting port is formed in the sector plate.
Furthermore, a pointer passes through the center of the driving gear and is connected with the valve rod and can rotate along with the driving gear.
Further, the upper part of the gear ring is connected with the valve body through a bolt so as to seal the upper part of the gear ring.
Further, the driven gear is replaced by a multi-stage transmission gear set.
The utility model discloses a partial gyration valve headstock gear, including ring gear, driven gear, driving gear and stopper. The inner ring wall surface of ring gear is equipped with the teeth of a cogwheel, and several driven gear evenly distributes in the inner ring wall of ring gear and meshes with it, and the driving gear sets up in the central authorities of ring gear to mesh with all driven gear respectively. When the driving gear rotates, the driven gear is driven to perform reverse self-transmission and revolution around the driving gear in the same direction, so that the limiting block and the valve rod connected with the limiting block are driven to rotate, and opening and closing of the valve are achieved. When the hand wheel is rotated, the moment realizes the deceleration movement through the gear transmission, the large torque is output, the valve is convenient to open and close, meanwhile, the load is distributed to the teeth with a large number of different driven gears and all the inner ring walls of the gear rings, the abrasion to a single transmission area is reduced, the strength of the device is large, the service life is long, and the reliability is improved. Furthermore, the utility model discloses having reduced the overall dimension of valve, having solved general manual valve focus skew problem, both improved the adaptive environment ability of valve, improved the maneuverability of valve again.
Drawings
FIG. 1 is a valve operating mechanism with a turbine reduction gearbox 1 in the prior art;
FIG. 2 is a prior art valve operating mechanism operated directly by handle 2;
fig. 3 is a schematic structural view of a partial rotary valve opening and closing device of the present invention;
fig. 4 is a perspective view of a partial rotary valve opening and closing device of the present invention;
fig. 5 is a top view of the gear transmission structure of the gear ring part of the opening and closing device for the partially rotating valve of the present invention;
fig. 6 is a bottom view of the gear transmission structure of the gear ring part of the opening and closing device for the partially rotating valve of the present invention;
fig. 7 is a schematic structural view of an embodiment of the partial rotary valve opening and closing device of the present invention applied to a ball valve.
Detailed Description
Referring to fig. 3 to 7, in order to better understand the technical solution of the present invention, the following is described in detail by specific embodiments:
referring to fig. 3 and 4, the opening and closing device for a partially rotary valve of the present invention is used to control the movement of the valve rod to drive the valve core to move so as to open and close the valve. The partial rotary valve opening and closing device comprises a hand wheel 31, a driving gear 32, a gear ring 33, a driven gear 34 and a limiting block 36, wherein the driving gear 32, the gear ring 33, the driven gear 34 and the limiting block are connected to the bottom of the hand wheel 31.
The hand wheel 31 is arranged at the top of a packing gland 35 of the valve, and the driving gear 32 is connected with the hand wheel 31 through a connecting rod and fastened through a clamp spring. When the hand wheel 31 is rotated, the driving gear 32 is driven to rotate correspondingly.
Referring to fig. 3 to 6, the ring gear 33 is shaped to match the packing gland, and its upper surface is closed by the packing gland 35 and fixed by bolting. Gear teeth are arranged on the surface of the inner ring wall of the gear ring 33, and 3 driven gears 34 are uniformly distributed on the inner ring wall of the gear ring 33 and are respectively meshed with the gear teeth on the inner ring wall of the gear ring 33. The drive gear 32 is located at the center of the ring gear 33 and meshes with all the driven gears 34, respectively.
In this system, the driving gear 32 is the driving member, and the driven gear 34 is the driven member. When the driving gear 32 is driven by the hand wheel 31 to rotate, the teeth of the driving gear 32 must give a thrust to the teeth of the driven gear 34, and the driven gear 34 starts to rotate under the thrust, and the rotation direction of the driven gear is opposite to that of the driving gear 32. At this time, since the ring gear 33 is fixed, at the same time, the teeth of the ring gear 33 give a reaction force to the teeth of the driven gear 34, and the driven gear 34 revolves around the driving gear 32 in the same direction as the rotation direction of the driving gear 32 by the resultant force of the reaction force and the reaction force. In this state, gear transmission by the gear mechanism action is generated, and the driven gear 34 rotates in the same direction as the drive gear 32. The driving gear 32 is a driving part and is a pinion, the equivalent gear tooth number of the driven gear 34 is equal to the sum of the gear teeth of the driving gear 32 and the gear teeth of the gear ring 33, the tooth numbers are not mutually occluded during the transmission of the three, and the gear teeth numbers among the driving gear 32, the driven gear 34 and the gear ring 33 are obtained to be mutually prime numbers according to the gear transmission modulus and the tooth number ratio, so that the driving gear 32 drives the driven gear 34 to rotate, belongs to the pinion to drive the gear wheel, and is a deceleration movement and has a large transmission ratio. In practical applications, the specific number of the driven gears 34 can be adjusted, and can be replaced by a multi-stage transmission gear set, so as to realize more efficient transmission.
The driven shaft 37 is arranged in the center of the driven gear 34, and the limit block 36 is arranged in the gear ring 33 and sealed through a sealing ring 361. The driven gear 34 is disposed on the stopper 36 and connected to the stopper 36 through a driven shaft 37. The bottom of the limiting block 36 is provided with a protruding sector plate, the sector plate 38 is provided with a valve rod connecting port 381 which is positioned in the center of the limiting block 36, and the valve rod is inserted into the valve rod connecting port 381. When the driven gear 34 revolves around the driving gear 32 in the gear ring 33, the limiting block 36 is driven to synchronously rotate, and the valve rod is driven to correspondingly rotate, so that the opening and closing of the valve are controlled. The connecting part of the valve and the limiting block 36 is provided with a stuffing box 4, the position of the stuffing box 4 is set according to the opening and closing position of the valve, when the sector plate 38 is contacted with the stuffing box 4, the limiting block 36 is prevented from rotating, so that the mutual transmission of the driving wheel 42 and the driven wheel 34 is prevented, and the limiting effect is achieved. When the sector plate 38 abuts the two stuffing boxes 4, the valve is in the fully open and fully closed positions, respectively.
And a pointer 39 passes through the center of the driving gear 32 from the middle of the hand wheel 31 from top to bottom to lead to the valve rod, is fixedly connected with the valve rod and synchronously rotates along with the driving gear 32. Indicating structures are arranged at the upper end of the pointer 39 and the packing gland 35 to indicate the current position of the valve. Because the pointer structure is directly connected with the driving gear 32 and the valve rod and synchronously rotates, the real position of the valve can be accurately indicated through a mechanical means.
Referring to fig. 7, the opening and closing device of the partial rotary valve of the present invention is applied to the ball valve. Wherein, the ball valve rod 5 is fixedly connected with the limiting block, and the ball valve rod 5 controls the opening and closing of the ball valve clack 6. The utility model discloses a part gyration valve headstock gear can be applied to part gyration valve, including but not limited to butterfly valve, ball valve and governing valve.
The utility model discloses a partial gyration valve headstock gear, transmission efficiency is high, and the load has reduced the regional wearing and tearing of single transmission on being distributed on the numerous tooth of different driven gear quantity and the whole inner circle wall of ring gear, has promoted the reliability, compact structure simultaneously, and space utilization efficiency is high, and the device is small and the focus is not cheap, and application scope is wide.
It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that changes and modifications to the above described embodiments will fall within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (6)
1. A partial rotation valve opening and closing device is used for opening and closing a valve and comprises a hand wheel and a driving gear connected to the bottom of the hand wheel, and is characterized by further comprising a gear ring, a driven gear and a limiting block;
the surface of the inner ring wall of the gear ring is provided with gear teeth, a plurality of driven gears are uniformly distributed on the inner ring wall of the gear ring and are respectively meshed with the inner ring wall of the gear ring, and the driving gear is arranged in the center of the gear ring and is respectively meshed with all the driven gears; when the driving gear rotates, the driven gear is driven to conduct self-transmission, the rotating direction of the driven gear is opposite to that of the driving gear, and meanwhile when the driving gear rotates, the driven gear is driven to conduct revolution around the driving gear, and the rotating direction of the driven gear is the same as that of the driving gear;
a driven shaft is arranged in the center of the driven gear, the driven gear is arranged on a limiting block and is connected with the limiting block through the driven shaft, and when the driven gear revolves around the driving gear in the gear ring, the limiting block is driven to synchronously rotate;
and a valve rod of the valve is connected to the center of the limiting block.
2. The opening and closing device for the partially rotary valve of claim 1, wherein the bottom of the limiting block is provided with a protruding sector plate, the connecting part of the valve and the partially rotary valve opening and closing device is provided with a stuffing box, and the stuffing box limits the rotation angle of the sector plate and is arranged according to the opening and closing position of the valve.
3. The device of claim 2, wherein the sector plate defines a valve stem port.
4. The device of claim 1, wherein a finger is coupled to the stem through the center of the gear and is rotatable with the gear.
5. The partial rotation valve opening and closing device of claim 1, wherein the upper portion of the ring gear is bolted to the valve body to close the upper portion of the ring gear.
6. The partially-rotating valve opening and closing device of claim 1, wherein the driven gear is replaced with a multi-stage drive gear set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921324477.XU CN210600398U (en) | 2019-08-15 | 2019-08-15 | Opening and closing device for partial rotary valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921324477.XU CN210600398U (en) | 2019-08-15 | 2019-08-15 | Opening and closing device for partial rotary valve |
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| Publication Number | Publication Date |
|---|---|
| CN210600398U true CN210600398U (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921324477.XU Active CN210600398U (en) | 2019-08-15 | 2019-08-15 | Opening and closing device for partial rotary valve |
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| CN (1) | CN210600398U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307382A (en) * | 2019-08-15 | 2019-10-08 | 上海阀门厂股份有限公司 | A kind of part of revolving valves headstock gear |
| CN114736698A (en) * | 2022-05-23 | 2022-07-12 | 山东东尊华泰环保科技有限公司 | Automatic pressure adjusting device for single carbonization chamber of large-scale coke oven |
-
2019
- 2019-08-15 CN CN201921324477.XU patent/CN210600398U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307382A (en) * | 2019-08-15 | 2019-10-08 | 上海阀门厂股份有限公司 | A kind of part of revolving valves headstock gear |
| CN114736698A (en) * | 2022-05-23 | 2022-07-12 | 山东东尊华泰环保科技有限公司 | Automatic pressure adjusting device for single carbonization chamber of large-scale coke oven |
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