CN213655871U - Partial rotary actuator for valve - Google Patents
Partial rotary actuator for valve Download PDFInfo
- Publication number
- CN213655871U CN213655871U CN202022193337.2U CN202022193337U CN213655871U CN 213655871 U CN213655871 U CN 213655871U CN 202022193337 U CN202022193337 U CN 202022193337U CN 213655871 U CN213655871 U CN 213655871U
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- valve
- crank
- transmission
- rotary actuator
- connecting rod
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Abstract
The utility model relates to a partial rotary actuator for a valve, which comprises a crank link mechanism and a thread transmission mechanism; the crank connecting rod mechanism comprises a crank and a connecting rod, the rotating axis of the crank is connected with the valve, and the crank is connected with the connecting rod by a pin shaft; the thread transmission mechanism comprises a transmission rod and a transmission device, the transmission device is connected with the transmission rod together, the transmission device moves along the direction of a rotation axis when the transmission rod rotates, the transmission device is connected with the connecting rod through a shaft, and the transmission rod is arranged on the shell; the utility model discloses self-locking performance is good, and the maximum torque effect is closed the end or is opened the position in the twinkling of an eye at the valve, is applicable to partial gyration valve very much to have limit structure and the valve position indicating function who opens and close the position, rotate the hand wheel and rotate the transfer line simultaneously, the transfer line promotes drive nut and slides to one end, and drives the connecting rod, and connecting rod promotion crank rotates around rotatory axle center, accomplishes the gyration action, can realize opening and the close function of valve when being connected with the valve.
Description
Technical Field
The utility model relates to a rotary actuator, concretely relates to simple structure, be convenient for installation, stable performance's partial rotary actuator for valve.
Background
The actuator structure used on part of the rotary valve is mainly a worm gear transmission mechanism, the worm gear transmission mechanism has lower mechanical efficiency, and the thread clearance is larger, so that the self-locking performance is poor.
The valve maximum torque effect of quarter gyration is closed at the valve and is ended or open position in the twinkling of an eye, and in case the valve is opened a bit, the whole moment of torsion of valve will descend a lot, the utility model discloses a partial gyration executor for valve, the advantage lies in that self-locking performance is good, and transmission efficiency is also highest during the valve maximum torque state.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is an object of the present invention to provide a partial rotary actuator for a valve, which can achieve high efficiency transmission and has better self-locking performance.
The utility model discloses a solve above-mentioned technical problem through following technical scheme: a partial swing actuator for a valve, the partial swing actuator comprising: a crank connecting rod mechanism and a thread transmission mechanism.
The crank-link mechanism comprises a crank and a connecting rod, the rotating axis of the crank is connected with the valve, and the crank is connected with the connecting rod through a pin shaft.
The thread transmission mechanism comprises a transmission rod and a transmission device, the transmission device is connected with the transmission rod together, the transmission device moves along the direction of the rotation axis when the transmission rod rotates, the transmission device is connected with the connecting rod through a shaft, and the transmission rod is arranged on the shell.
The rotating shaft center of the crank is connected with a driven valve, the tail end of the transmission rod is connected with a rotary input mechanism, and the rotary input mechanism is rotated to realize the opening and closing actions of the valve.
In an embodiment of the present invention, the rotation-type input mechanism is a handwheel, an electric motor or a pneumatic motor.
In a specific embodiment of the present invention, the transmission device is a transmission nut, and the transmission nut and the transmission rod are connected together through a screw thread.
In the embodiment of the present invention, there are two connecting rods, and the two connecting rods are symmetrically installed at the upper and lower positions of the driving nut.
In an embodiment of the present invention, one end of the transmission rod is connected to the rotation-type input mechanism, and the other end is installed in the fitting hole of the housing, and has a step, one end of which is supported on the plane of the housing, and the other end of which is supported on the plane of the bottom cover.
In the embodiment of the present invention, the housing of the partial rotary actuator for the valve has "OPEN" and "CLOSE" position indicating discs, the top end of the crank has an arrow head for indicating the position, and the position indicating discs rotate together with the crank.
In the specific embodiment of the utility model, install the spacing bolt and the nut of two extreme positions on the shell, take "A" type lug on the crank, when the valve is in the extreme position of initiating terminal, this lug and the contact of spacing bolt, the handle of crank and the contact of spacing bolt when the crank rotates another extreme position, spacing bolt has the screw in and screws out the space.
In the embodiment of the present invention, the cover plate of the partial rotary actuator for the valve is connected to the housing by bolts.
In the embodiment of the present invention, the bottom of the cover plate has a bolt hole connected to the valve.
In the embodiment of the present invention, the installation distance between the two pins connected to the connecting rod and the crank is larger than the diameter of the transmission rod.
The utility model discloses an actively advance the effect and lie in: the utility model provides a valve is with part rotary actuator has following advantage: the utility model provides a valve is with partial gyration executor self-locking performance is good, and the maximum torque effect is closed the end or is opened the position in the twinkling of an eye at the valve, is applicable to partial gyration valve very much to have limit structure and the valve position indicating function of opening and closing the position, rotate the hand wheel and rotate the transfer line simultaneously, the transfer line promotes drive nut and slides to one end, and drive the connecting rod, connecting rod promotion crank rotates around the rotation axis, accomplish the gyration action, can realize opening and the closing function of valve when being connected with the valve.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a top view of the present invention;
fig. 3 is a left side view of the present invention;
fig. 4 is a P-direction view of the front view of fig. 1 of the present invention;
fig. 5 is a sectional view a-a of the front view of fig. 1 of the present invention;
fig. 6 is a sectional view taken along line B-B of the view of fig. 5 of the present invention;
fig. 7 is a partial cross-sectional view C-C of the view of fig. 5 of the present invention;
fig. 8 is a cross-sectional view, taken along line D-D, of the fig. 5 view of the present invention, as directed to part crank 16.
The utility model discloses the name that well reference numeral corresponds:
the device comprises a shell 1, a cover plate 2, a hand wheel 3, a stud 4, a first nut 5, a second nut 6, a first bolt 7, a first bolt 8, a second bolt 9, a second bolt 10, a flat key 11, an upper cover 12, a transmission nut 13, a transmission rod 14, a connecting rod 15, a crank 16, a bottom cover 17, a pin shaft 18 and a shaft elastic retainer ring 19.
Detailed Description
The following provides a preferred embodiment of the present invention with reference to the accompanying drawings to explain the technical solutions of the present invention in detail.
The utility model aims at remedying the not enough of prior art, provide a valve with partial gyration executor, realize the valve with partial gyration executor's high efficiency transmission to better auto-lock performance has.
Fig. 1 is a front view of the present invention; fig. 2 is a top view of the present invention; fig. 3 is a left side view of the present invention; as shown in fig. 1-3, the present invention provides a partial rotary actuator for a valve, comprising: a crank connecting rod mechanism and a thread transmission mechanism; the crank connecting rod mechanism comprises a crank 16 and a connecting rod 15, the rotating axis of the crank 16 is connected with the valve, and the crank 16 is connected with the connecting rod 15 by a pin shaft; the screw transmission mechanism comprises a transmission rod 14 and a transmission device, the transmission device is connected with the transmission rod 14, the transmission device moves along the direction of a rotation axis when the transmission rod 14 rotates, the transmission device is connected with a connecting rod 15 through a shaft, and the transmission rod 14 is arranged on the shell.
The rotating shaft center of the crank 16 is connected with a driven valve, the tail end of the transmission rod 14 is connected with a rotary input mechanism, and the rotary input mechanism is rotated to realize the opening and closing actions of the valve.
In a specific implementation process, the rotary input mechanism is a hand wheel 3, a motor or a pneumatic motor, and the opening and closing actions of the valve can be realized by rotating the rotary input mechanism.
The transmission device is a transmission nut 13, and the transmission nut 13 is connected with the transmission rod 14 through threads.
The two connecting rods 15 are symmetrically arranged at the upper position and the lower position of the transmission nut to prevent the transmission nut from rotating along with the transmission rod.
The drive rod 14 has one end connected to the rotary input mechanism and the other end mounted in a mating hole in the housing and has a step supported at one end on the plane of the housing and at the other end on the plane of the bottom cover.
The valve uses the position indicator disk with "OPEN" and "CLOSE" on the outer cover of the part rotary actuator, the top of the crank carries the arrow of the position indication, the position indicator disk rotates with the crank.
The shell is provided with two limit bolts and nuts at two limit positions, the crank is provided with an A-shaped lug, when the valve is at the limit position of the starting end, the lug is in contact with the limit bolt, when the crank rotates to the other limit position, the handle of the crank is in contact with the limit bolt, and the limit bolt is provided with a screwing-in space and a screwing-out space.
The cover plate of the partial rotary actuator for the valve is connected with the shell by bolts. The bottom of the cover plate is provided with a bolt hole connected with the valve. The installation distance between the two pin shafts connected with the connecting rod and the crank is larger than the diameter of the transmission rod.
The utility model discloses when well articulate handle and the axis of transfer line were in the vertical state almost, this utility model was in the initial motion position, when articulate handle and transfer line were in the vertical state, connecting rod and articulate handle also were in the vertical state, was crank mechanism transmission efficiency highest position this moment, and connecting rod and transfer line also were in parallel state simultaneously, and the transmission efficiency between connecting rod and drive nut also was the highest state, and mechanical loss this moment only has the thread friction between drive nut and the dwang.
The utility model discloses install two extreme position's spacing bolt and nut on the shell, take "A" type lug on the crank, when the valve is in the extreme position of initiating terminal, this lug and spacing bolt contact play limiting displacement, and articulate handle and spacing bolt contact when the crank rotates another extreme position play limiting displacement, and spacing bolt has certain screw in and revolves out the space, can be according to the specific position adjustment executor's of driven valve spacing.
A certain gap is formed between the two ends of the moving stroke of the transmission nut and the shell, so that the situation that the stroke of the transmission nut is not enough before the limiting bolt is adjusted in place is prevented.
The utility model discloses the mounting distance of two round pin axles of connecting rod and crank connection is greater than the diameter of drive link, prevents that round pin axle and drive link from bumping.
Whether the threads of the transmission nut and the transmission rod are rotated leftwards or rightwards, when the driven valve is in a closed position, the transmission nut is in an extreme position CLOSE to the upper cover, the pointer on the crank points to 'CLOSE', when the transmission rod is rotated, the transmission nut moves towards the bottom cover, and vice versa.
Fig. 4 is a P-direction view of the front view of fig. 1 of the present invention; fig. 5 is a sectional view a-a of the front view of fig. 1 of the present invention; fig. 6 is a sectional view taken along line B-B of the view of fig. 5 of the present invention; fig. 7 is a partial cross-sectional view C-C of the view of fig. 5 of the present invention; fig. 8 is a cross-sectional view, taken along line D-D, of the component crank 16 of fig. 5 in accordance with the present invention; as shown in fig. 4-8, the "start position" mentioned in the present invention is the position shown in fig. 5, when the pointer on the crank 16 points to "CLOSE" of the position indicating dial of the housing 1.
When the utility model is in the position shown in fig. 5, the directional shell 1 position indication dish of position pointer of crank 16 "CLOSE", rotate transfer line 14 this moment, drive nut 13 removes to bottom 17 direction, drive nut 13 promotes connecting rod 15, connecting rod 15 promotes crank 16 and rotates around the crank axle center, until crank 16's handle and the contact of stop bolt 7, the directional shell 1 position indication dish of position pointer of crank 16 "OPEN", the stroke is ended, driven valve accomplishes the action of opening the valve, when the transfer line 14 is rotated in the opposite direction, do the valve action of closing.
The crank 16 is installed between the housing 1 and the cover plate 2, the crank 16 has only rotational freedom to rotate around the axis, while the rotational angle beta is limited by the first bolt 7, and the first bolt 7 is installed on the housing 1 and locked by a nut.
The effective angle beta of the crank 16 can be not 90 degrees, the specific angle can be determined according to the valve in practical application, and the indication range of the indication plate of the shell 1 can be adjusted according to the angle beta. The upper cover 12 is mounted on the housing 1 using second screws 10. The bottom cover 17 is mounted on the housing 1 using the stud 4 and the first nut 5.
The utility model discloses self-locking performance is good, and the maximum torque effect is closed the end or is opened the position in the twinkling of an eye at the valve, is applicable to partial gyration valve very much to have limit structure and the valve position indicating function who opens and close the position, rotate the hand wheel and rotate the transfer line simultaneously, the transfer line promotes drive nut and slides to one end, and drives the connecting rod, and connecting rod promotion crank rotates around rotatory axle center, accomplishes the gyration action, can realize opening and the close function of valve when being connected with the valve.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.
Claims (10)
1. A partial rotary actuator for a valve, comprising: the partial rotary actuator for a valve includes: a crank connecting rod mechanism and a thread transmission mechanism;
the crank connecting rod mechanism comprises a crank and a connecting rod, the rotating axis of the crank is connected with the valve, and the crank is connected with the connecting rod through a pin shaft;
the thread transmission mechanism comprises a transmission rod and a transmission device, the transmission device is connected with the transmission rod together, the transmission device moves along the direction of a rotation axis when the transmission rod rotates, the transmission device is connected with the connecting rod through a shaft, and the transmission rod is arranged on the shell;
the rotating shaft center of the crank is connected with a driven valve, the tail end of the transmission rod is connected with a rotary input mechanism, and the rotary input mechanism is rotated to realize the opening and closing actions of the valve.
2. The partially rotary actuator for a valve of claim 1, wherein: the rotary input mechanism is a hand wheel, a motor or a pneumatic motor.
3. The partially rotary actuator for a valve of claim 1, wherein: the transmission device is a transmission nut, and the transmission nut is connected with the transmission rod through threads.
4. The partially rotary actuator for a valve of claim 1, wherein: the two connecting rods are symmetrically arranged at the upper position and the lower position of the transmission nut.
5. The partially rotary actuator for a valve of claim 1, wherein: one end of the transmission rod is connected with the rotary input mechanism, the other end of the transmission rod is arranged in the matching hole of the shell and is provided with a step, one end of the step is supported on the plane of the shell, and the other end of the step is supported on the plane of the bottom cover.
6. The partially rotary actuator for a valve of claim 1, wherein: the valve uses the position indicator disk with "OPEN" and "CLOSE" on the outer cover of the part rotary actuator, the top of the crank carries the arrow of the position indication, the position indicator disk rotates with the crank.
7. The partially rotary actuator for a valve of claim 1, wherein: the shell is provided with two limit bolts and nuts at two limit positions, the crank is provided with an A-shaped lug, when the valve is at the limit position of the starting end, the lug is in contact with the limit bolt, when the crank rotates to the other limit position, the handle of the crank is in contact with the limit bolt, and the limit bolt is provided with a screwing-in space and a screwing-out space.
8. The partially rotary actuator for a valve of claim 1, wherein: the cover plate of the partial rotary actuator for the valve is connected with the shell by bolts.
9. The partially rotary actuator for a valve of claim 1, wherein: the bottom of the cover plate is provided with a bolt hole connected with the valve.
10. The partially rotary actuator for a valve of claim 1, wherein: the installation distance between the two pin shafts connected with the connecting rod and the crank is larger than the diameter of the transmission rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022193337.2U CN213655871U (en) | 2020-09-29 | 2020-09-29 | Partial rotary actuator for valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022193337.2U CN213655871U (en) | 2020-09-29 | 2020-09-29 | Partial rotary actuator for valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213655871U true CN213655871U (en) | 2021-07-09 |
Family
ID=76698971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022193337.2U Active CN213655871U (en) | 2020-09-29 | 2020-09-29 | Partial rotary actuator for valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213655871U (en) |
-
2020
- 2020-09-29 CN CN202022193337.2U patent/CN213655871U/en active Active
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