CN214008252U - Multi-rotary valve driving device with position indication - Google Patents
Multi-rotary valve driving device with position indication Download PDFInfo
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- CN214008252U CN214008252U CN202022979487.6U CN202022979487U CN214008252U CN 214008252 U CN214008252 U CN 214008252U CN 202022979487 U CN202022979487 U CN 202022979487U CN 214008252 U CN214008252 U CN 214008252U
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Abstract
The utility model discloses a many gyration valve drive arrangement with position indication, include: the gear shaft, the gear disc, the transmission sleeve, the protective sleeve, the screw rod and the indicating nut; a bevel gear is arranged at one end of the gear shaft connected with the gear disc, the gear disc is in a circular ring shape, a gear is arranged on one surface of the gear disc connected with the gear shaft, and the gear disc is connected with the gear shaft in a meshed manner; the transmission sleeve is arranged in the gear disc and is fixedly connected with the gear disc; the protective sleeve is arranged below the transmission sleeve, the screw rod is positioned in the protective sleeve, and the screw rod is connected to the transmission sleeve; the indication nut is sleeved on the screw rod and is abutted to the protective sleeve. Through the mode, the utility model converts the rotary motion of the transmission nut into the linear motion of the indication nut through the lead screw, and can effectively solve the problem that the hidden rod valve can not judge the valve switch state through the up-and-down motion stroke of the valve rod; during operation, the current opening or closing state of the valve can be judged visually through the position of the indicating nut.
Description
Technical Field
The utility model relates to a valve drive technical field especially relates to a many gyration valve drive arrangement with position indication.
Background
In actual production, for various valves with straight strokes such as gate valves, stop valves and the like, a multi-rotary valve driving device with position indication is selected in practical application.
The valve rod and the gate plate (which may be welded) are fixed, the gate plate is restricted by the valve body and is not allowed to rotate, the valve rod is provided with T-shaped external threads, a copper nut in the valve driving device is set into T-shaped internal threads, a gear shaft is driven by the rotation of a hand wheel, the gear shaft drives a large gear to drive a transmission sleeve to drive the copper nut, the copper nut rotates to drive the T-shaped threads of the valve rod, and the gate plate is restricted by the rotation, so that the valve stem drives the gate plate to move up and down to drive the valve to open or close, and the position of the valve rod to be opened or closed is judged by the up.
A nut is arranged on a flashboard of the non-rising stem gate valve, a T-shaped thread is arranged on a valve rod, the valve rod is meshed with a flashboard nut, the valve rod is connected with a copper nut through a key or a flat hole, a gear shaft is driven to rotate through the rotation of a hand wheel, the valve rod is driven to rotate, the flashboard is limited by the rotation, and the flashboard nut drives the flashboard to move up and down along the valve rod to drive the valve to be opened or closed.
The non-rising stem gate valve has the advantages that due to the particularity of the non-rising stem gate valve, the valve rod nut is arranged on the flashboard, the hand wheel drives the valve rod to rotate, the valve plate is lifted, and therefore the opening or closing position of the non-rising stem gate valve cannot be effectively judged by adopting the traditional multi-rotation valve driving device with position indication.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a many gyration valve drive arrangement with position indication, can effectively solve the dark pole valve and can't judge the problem of valve on-off state through valve rod up-and-down motion stroke, can judge the present state of opening or closing of valve through the position of indicating nut during the operation directly perceivedly.
In order to achieve the above object, the technical solution of the present invention is:
many gyration valve drive arrangement with position indication includes: the gear shaft, the gear disc, the transmission sleeve, the protective sleeve, the screw rod and the indicating nut; a bevel gear is arranged at one end of the gear shaft connected with the gear disc, the gear disc is in a circular ring shape, a gear is arranged on one surface of the gear disc connected with the gear shaft, and the gear disc is in meshed connection with the gear shaft; the transmission sleeve is arranged in the gear disc and is fixedly connected with the gear disc; the protective sleeve is arranged below the transmission sleeve, the screw rod is positioned in the protective sleeve, and the screw rod is connected to the transmission sleeve; the indicating nut is sleeved on the screw rod and is abutted against the protective sleeve.
Preferably, the transmission sleeve comprises a sleeve body and a clamping block, the clamping block is arranged on the outer side of the sleeve body, a clamping groove matched with the clamping block is formed in the inner wall of the gear disc, and the transmission sleeve is connected with the gear disc in an embedded mode.
Preferably, the indicating nut comprises a nut body and limiting blocks, and the limiting blocks are symmetrically arranged outside the nut body; the protective sleeve is provided with a limiting groove in the vertical direction, and the limiting block is located in the limiting groove of the protective sleeve.
Preferably, the vertical section of the limiting block is triangular, and the height of one side, far away from the nut body, of the limiting block is smaller than the height of one side, close to the nut body, of the limiting block.
Preferably, the protective sleeve further comprises a display window, the display window is arranged on the protective sleeve, and an indication mark is arranged on the display window.
Preferably, the screw rod further comprises a transmission nut, the transmission nut is located in the transmission sleeve, the transmission sleeve is sleeved on the transmission nut, and the screw rod is connected to the transmission nut.
Preferably, the gear box further comprises a hand wheel connected to the gear shaft.
Preferably, still include bearing assembly, bearing assembly includes first bearing and second bearing, first bearing sets up the two sides of toothed disc, the second bearing cover is established on the gear shaft.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model has the following beneficial effect:
the multi-rotation valve driving device with the position indication is provided, the rotary motion of the transmission nut is converted into the linear motion of the indication nut through the lead screw, and the problem that the hidden rod valve cannot judge the valve switch state through the up-and-down motion stroke of the valve rod can be effectively solved; the opening or closing position of the valve is indicated by indicating the position of the nut on the display window on the protective sleeve, and the current opening or closing state of the valve can be judged visually by indicating the position of the nut during operation, so that the method is simple and clear.
Drawings
Fig. 1 is a schematic structural diagram of the multi-rotary valve driving device with position indication of the present invention.
Fig. 2 is a schematic view of the multi-turn valve driving device with position indication of the present invention without a protective cover.
Fig. 3 is a cross-sectional view of the multi-rotary valve driving apparatus with position indication of the present invention.
Fig. 4 is a schematic diagram of the gear plate and the transmission sleeve connected in the multi-rotary valve driving device with position indication of the present invention.
Fig. 5 is a schematic structural view of an indicating nut of the multi-turn valve driving device with position indication according to the present invention.
Description of reference numerals: the gear shaft 1, the gear disc 2, the transmission sleeve 3, the sleeve body 31, the fixture block 32, the protective sleeve 4, the display window 41, the screw rod 5, the indication nut 6, the nut body 61, the limiting block 62, the transmission nut 7, the bearing assembly 8, the first bearing 81, the second bearing 82 and the hand wheel 9.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to the drawings, a multi-rotary valve actuation device with position indication comprises: gear shaft 1, toothed disc 2, transmission sleeve 3, protective sheath 4, lead screw 5 and instruction nut 6. The main transmission part of the multi-rotary valve driving device with the position indication comprises a gear shaft 1, a gear disc 2 and a transmission sleeve 3, wherein a conical gear is arranged at one end, connected with the gear disc 2, of the gear shaft 1. The gear plate 2 is in a circular ring shape, a gear is arranged on one surface, connected with the gear shaft 1, of the gear plate 2, and the gear plate 2 is meshed with the gear shaft 1 through a bevel gear.
The transmission sleeve 3 is arranged in the gear disc 2, and the transmission sleeve 3 is fixedly connected with the gear disc 2. The transmission sleeve 3 comprises a sleeve body 31 and a clamping block 32, the clamping block 32 is arranged on the outer side of the sleeve body 31, a clamping groove matched with the clamping block 32 is formed in the inner wall of the gear disc 2, and the transmission sleeve 3 is connected with the gear disc 2 in an embedded mode.
In order to be better connected with a valve, the multi-turn valve driving device with the position indication further comprises a transmission nut 7, the transmission nut 7 is located in the transmission sleeve 3, the transmission sleeve 3 is sleeved on the transmission nut 7, and the screw rod 5 is connected to the transmission nut 7. The transmission sleeve 3 is provided with a spline, the transmission sleeve 3 is meshed with the spline of the transmission nut 7, and the valve is connected with the transmission nut 7. The drive nut 7 is connected to the valve to be driven and transmits the torque generated by the operation of the drive means to the valve shaft of the valve.
The gear shaft 1 is a driving shaft, and in order to drive the gear shaft 1 to rotate, the valve driving device further comprises a hand wheel 9. The hand wheel 9 is used as a power input part of the valve manual device, is mounted on the gear shaft 1 through key connection, and drives the gear shaft 1 to rotate through the hand wheel 9. The gear shaft 1 rotates along with the rotation of the hand wheel 9, the gear shaft 1 drives the gear disc 2 to rotate through meshing with the gear disc 2, the gear disc 2 drives the transmission sleeve 3 to rotate through embedded connection with the transmission sleeve 3, the transmission sleeve 3 drives the transmission nut 7 to rotate through spline connection with the transmission nut 7, and the transmission nut 7 drives the valve connected with the transmission nut in a meshing mode.
This many gyration valve drive arrangement with position indication still includes bearing assembly 8, and bearing assembly 8 includes first bearing 81 and second bearing 82, and first bearing 81 sets up the upper and lower two sides at toothed disc 2, and first bearing 81 is used for guaranteeing toothed disc 2's installation accuracy and transmission accuracy. The second bearing 82 is sleeved on the gear shaft 1, and the second bearing 82 is used for ensuring the installation precision and the transmission precision of the gear shaft 1.
The protective sheath 4 sets up in the below of transmission sleeve 3, and lead screw 5 is located protective sheath 4, plays the guard action to lead screw 5 through protective sheath 4. The screw rod 5 is used as a main transmission part for providing guidance and stroke for the indicating nut 6, and the screw rod 5 is connected to the end part of a transmission nut 7. The screw rod 5 is fixedly connected with the transmission nut 7 through a bolt, the screw rod 5 and the transmission nut 7 synchronously rotate, trapezoidal threads are arranged on the screw rod 5, and the indicating nut 6 is connected with the trapezoidal threads on the screw rod 5.
The indication nut 6 is sleeved on the screw rod 5, and the indication nut 6 is abutted to the protective sleeve 4. The indicating nut 6 comprises a nut body 61 and a limiting block 62, and the limiting block 62 is symmetrically arranged outside the nut body 61. A limiting groove in the vertical direction is formed in the protective sleeve 4, and the limiting block 62 is located in the limiting groove of the protective sleeve 4. The stop block 62 of the indicating nut 6 is embedded in the stop groove of the protective sleeve 4 and is limited to rotate. When the screw rod 5 rotates, the indicating nut 6 is meshed with the trapezoidal threads of the screw rod 5, the indicating nut 6 should rotate along with the screw rod 5, and the indicating nut 6 is limited by the protective sleeve 4 to move upwards or downwards along the screw rod 5.
The limiting block 62 not only can play a role in limiting the rotation of the indicating nut 6, but also can play a role in indicating more clearly. The vertical section of the limiting block 62 is triangular, the height of one side, away from the nut body 61, of the limiting block 62 is smaller than the height of one side, close to the nut body 61, of the limiting block 62, and the state of the valve is indicated more clearly through one side, away from the nut body 61, of the limiting block 62.
In order to facilitate the operator to visually observe the state of the valve, the multi-turn valve driving device with position indication further comprises a display window 41, and the display window 41 is transparent. Display window 41 sets up on protective sheath 4, is provided with corresponding instruction mark on the display window 41, if instruct scale etc. the instruction scale position that points to protective sheath 4 through the stopper 62 of instruction nut 6 comes real-time indication valve operating position.
According to the valve characteristic of the non-rising stem gate valve, when the valve is operated, the valve rod nut is connected to the flashboard, and the handle drives the valve rod to rotate, so that the valve plate is lifted. Because the valve rod does not move upwards or downwards along with the opening or closing of the valve, the real-time opening state of the valve cannot be judged outside. According to this feature, in practice, it is not known whether the valve is in the open or closed position when the valve actuator is operated.
In the in-service use process, the hand wheel 9 drives the gear shaft 1 to rotate, power is transmitted to the transmission sleeve 3 through the embedded connection with the gear disc 2, the power is transmitted to the transmission nut 7 through the spline of the transmission sleeve 3, and the transmission nut 7 drives the valve rod to rotate, so that the valve is opened or closed. Meanwhile, the transmission nut 7 drives the screw rod 5 to rotate, the screw rod 5 drives the indicating nut 6 to rotate through the trapezoidal threads, and the indicating nut 6 does ascending or descending motion synchronous with the valve plate because the indicating nut 6 is limited by the rotation of the protective sleeve 4. Therefore, the real-time opening or closing state of the valve can be judged by judging the pointing position of the indicating nut 6 on the indicating scale of the protective sleeve 4.
The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.
Claims (8)
1. Many gyration valve drive arrangement with position indication, its characterized in that includes: the gear shaft, the gear disc, the transmission sleeve, the protective sleeve, the screw rod and the indicating nut; a bevel gear is arranged at one end of the gear shaft connected with the gear disc, the gear disc is in a circular ring shape, a gear is arranged on one surface of the gear disc connected with the gear shaft, and the gear disc is in meshed connection with the gear shaft; the transmission sleeve is arranged in the gear disc and is fixedly connected with the gear disc; the protective sleeve is arranged below the transmission sleeve, the screw rod is positioned in the protective sleeve, and the screw rod is connected to the transmission sleeve; the indicating nut is sleeved on the screw rod and is abutted against the protective sleeve.
2. A multi-rotary valve drive with position indication as claimed in claim 1, characterized in that: the transmission sleeve comprises a sleeve body and a clamping block, the clamping block is arranged on the outer side of the sleeve body, a clamping groove matched with the clamping block is formed in the inner wall of the gear disc, and the transmission sleeve is connected with the gear disc in an embedded mode.
3. A multi-rotary valve drive with position indication as claimed in claim 1, characterized in that: the indicating nut comprises a nut body and limiting blocks, and the limiting blocks are symmetrically arranged outside the nut body; the protective sleeve is provided with a limiting groove in the vertical direction, and the limiting block is located in the limiting groove of the protective sleeve.
4. A multi-rotary valve drive with position indication as claimed in claim 3, characterized in that: the vertical cross section of the limiting block is triangular, and the height of one side, far away from the nut body, of the limiting block is smaller than the height of one side, close to the nut body, of the limiting block.
5. A multi-rotary valve drive with position indication as claimed in claim 1, characterized in that: still include the display window, the display window sets up on the protective sheath, be provided with the instruction sign on the display window.
6. A multi-rotary valve drive with position indication as claimed in claim 1, characterized in that: the transmission nut is positioned in the transmission sleeve, the transmission sleeve is sleeved on the transmission nut, and the screw rod is connected to the transmission nut.
7. A multi-rotary valve drive with position indication as claimed in claim 1, characterized in that: the gear shaft is characterized by further comprising a hand wheel, and the hand wheel is connected to the gear shaft.
8. A multi-rotary valve drive with position indication as claimed in claim 1, characterized in that: still include bearing assembly, bearing assembly includes first bearing and second bearing, first bearing sets up the two sides of toothed disc, the second bearing cover is established on the gear shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022979487.6U CN214008252U (en) | 2020-12-10 | 2020-12-10 | Multi-rotary valve driving device with position indication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022979487.6U CN214008252U (en) | 2020-12-10 | 2020-12-10 | Multi-rotary valve driving device with position indication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214008252U true CN214008252U (en) | 2021-08-20 |
Family
ID=77311127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022979487.6U Active CN214008252U (en) | 2020-12-10 | 2020-12-10 | Multi-rotary valve driving device with position indication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214008252U (en) |
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2020
- 2020-12-10 CN CN202022979487.6U patent/CN214008252U/en active Active
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