CN215806696U - Drive system and valve structure - Google Patents
Drive system and valve structure Download PDFInfo
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- CN215806696U CN215806696U CN202023213179.9U CN202023213179U CN215806696U CN 215806696 U CN215806696 U CN 215806696U CN 202023213179 U CN202023213179 U CN 202023213179U CN 215806696 U CN215806696 U CN 215806696U
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Abstract
The present disclosure relates to a drive system and a valve structure, wherein the drive system comprises a drive device; a first planetary gear mechanism including a first sun gear, a first planet gear, a first carrier, and a first outer ring gear, wherein the first carrier is provided with a first output shaft; a worm meshed with the first outer gear ring; the second planetary gear mechanism comprises a second sun gear, a second planet carrier and a second external gear ring, wherein the second planet carrier is provided with a second output shaft, and the second output shaft is connected with the first sun gear; and a manual controller for driving the worm; the driving device is connected with the second sun gear to drive the second sun gear.
Description
Technical Field
The present disclosure relates to a selective control system, and more particularly to a drive system and valve structure.
Background
The automatic control systems in the current market lack the capability of identifying the state quality of internal and external equipment of the system, so that the controller can act correspondingly as long as a deviation signal exists at an input end, and the controller cannot identify whether a problem occurs inside the system or whether the external production equipment works abnormally, and sometimes even control deviation from a preset value occurs to cause a bad accident. Usually, an automatic control system can only work when the production process is normal, and once the automatic control fails, the controller needs to be changed into manual control to eliminate accidents in a fastest mode.
SUMMERY OF THE UTILITY MODEL
The present disclosure provides a driving system and a valve structure, which can manually control the existing automatic control system to solve the accident caused by the deviation of the automatic control system from the predetermined value.
One aspect of the present disclosure provides a drive system, including:
a drive device;
a first planetary gear mechanism including a first sun gear, a first planet gear, a first carrier, and a first outer ring gear, wherein the first carrier is provided with a first output shaft;
a worm meshed with the first outer gear ring;
the second planetary gear mechanism comprises a second sun gear, a second planet carrier and a second external gear ring, wherein the second planet carrier is provided with a second output shaft, and the second output shaft is connected with the first sun gear; and
a manual controller for driving the worm;
the driving device is connected with the second sun gear to drive the second sun gear.
In some embodiments, the drive system further comprises a housing engaged with the first outer ring gear.
In some embodiments, when in the first state, the driving device drives the second sun gear to rotate, and when in the second state, the driving device is turned off, and the second sun gear is fixed.
In some embodiments, the worm is mounted on the housing through the housing, one end of the worm is connected to the manual controller, and the other end of the worm is engaged with the first external gear ring
In some embodiments, the drive system further comprises a locking device mounted on the housing through the housing.
In some embodiments, the locking means engages with the second external gear ring to lock the second external gear ring when the locking means is in the secured state; when in the released state, the second external gear ring is disengaged from the locking means, so that the second external gear ring can rotate.
In some embodiments, the helix angle of the worm is smaller than the friction angle of the contact between the worm and the first outer gear ring, i.e. β < Φ, β being the helix angle of the worm, Φ being the friction angle.
In some embodiments, the drive system further comprises an electric fixture engaged with the second outer ring gear; when the electric fixing device is in the first state, the second external gear ring is limited to rotate by the electric fixing device; when the electric fixing device is in the second state, the electric fixing device is closed, and the second external gear ring can rotate under the action of external force.
In some embodiments, when in the first state, the drive device is in an energized state with the motorized fixture device; when the electric fixing device is in the second state, the driving device and the electric fixing device are in a power-off state.
The present disclosure further provides a valve structure, including the driving system according to any one of the above schemes, and a valve, wherein the first output shaft is connected with the valve to open and close the valve.
Has the advantages that: the driving system disclosed by the invention has the advantages that the manual control function is added under the power-on condition by adopting multi-stage planetary gear transmission, and the manual override control is realized by utilizing the locking device or the manual controller, so that the valve is opened or closed, the control system can be returned to be normal through manual control when the control system is in failure, and the safety and reliability are further enhanced.
Drawings
FIG. 1 is a schematic view of a drive system according to one embodiment of the present disclosure;
FIG. 2 is a schematic view of a drive system according to one embodiment of the present disclosure;
wherein, 1, a driving device; 2. a first planetary gear mechanism; 21. a first sun gear; 22. a first planet gear; 23. a first carrier; 24. a first outer ring gear; 25. a first output shaft; 3. an electric fixing device; 5. a locking device; 6. a manual controller; 9. a second planetary gear mechanism; 91. a second sun gear; 92. a second planet wheel; 93. a second planet carrier; 94. A second outer gear ring; 95. a second output shaft; 10. a worm.
Detailed Description
FIG. 1 is a schematic view of a drive system according to one embodiment of the present disclosure; in the present embodiment, the drive system includes: the drive device 1, the first planetary gear mechanism 2 further comprising a first sun gear 21, a first planet gear 22, a first planet carrier 23 and a first external ring gear 24, wherein the first planet carrier 23 is provided with a first output shaft 25; as shown in fig. 2, the drive system further comprises a worm 10, the worm 10 being in mesh with the first external gear ring 24; the drive system further comprises a second planetary gear mechanism 9, the second planetary gear mechanism 9 comprises a second sun gear 91, a second planet gear 92, a second planet carrier 93 and a second external gear ring 94, wherein the second planet carrier 93 is provided with a second output shaft 95, the drive device 1 is connected with the second sun gear 91 to drive the second sun gear 91, and the second output shaft 95 is connected with the first sun gear 21; and a manual controller 6, the manual controller 6 is used for driving the worm 10; the driving device 1 is used for driving the second sun gear 91 to rotate.
When the driving device is in the first state, that is, when the actuator driven by the driving system of the present disclosure operates normally, the driving device 1 drives the second sun gear 91 to rotate, in this embodiment, the driving device 1 is a motor, and the motor can drive the second sun gear 91 to rotate after being powered on; when in the second state, i.e. the actuator driven by the drive system of the present disclosure fails, the drive 1 is off and the second sun gear 91 is stationary. When the executing mechanism normally runs, the motor keeps electrified to keep the executing mechanism normally running; when the actuator fails, the power supply to the motor is cut off, ensuring that the drive system stops driving the actuator.
As shown in fig. 1, the drive system of the present embodiment further includes an electric fixture 3, the electric fixture 3 being engaged with the second external gear ring 94; when in the first state, i.e., when the actuator driven by the drive system of the present disclosure is operating normally, the electric fixing device 3 restricts the rotation of the second external gear ring 94; when in the second state, i.e. the actuator driven by the drive system of the present disclosure is malfunctioning, the electric fixing device 3 is closed and the second external gear ring 94 can rotate under the external force. When in the first state, the driving device 1 and the electric fixing device 3 are in the electrified state; when in the second state, the driving device 1 and the electric fixing device 3 are in a power-off state. In the present embodiment, the driving device 1 is a motor, the electric fixing device 3 is an electromagnetic band brake, and when the driving device is in the first state, that is, in the energized state, the electromagnetic band brake is tightly held to prevent the second external ring gear 94 from rotating, and in the planetary system, when the second external ring gear 94 is fixed, the second sun gear 91 is input, the second planet carrier 93 is output, the second planet carrier 93 is connected to the second output shaft 95, and the second output shaft 95 drives the first sun gear 21 to rotate. The manual controller 6 prevents the first external gear ring 24 from rotating, the first sun gear 21 drives the first planet carrier 23 to rotate, and the first planet carrier 23 is connected with the first output shaft 25 and drives the first output shaft 25 to output. In some embodiments, an energy storage structure, such as a coil spring, may be attached to one end of the first output shaft 25, during which the coil spring is charged.
In the second state, i.e. the power-off state, both the driving device 1 and the electric fixing device 3 will fail due to power loss, in this embodiment, the electric fixing device 3 is an electromagnetic band-type brake, and the second external gear ring 94 will rotate freely, and the second sun gear 91 is in the locked state due to power loss of the driving device 1.
Through the cooperation of the worm 10 and the first external gear ring 24, the first external gear ring 24 rotates under the control of the manual controller 6, in this embodiment, the manual controller 6 is a hand wheel, the first external gear ring 24 drives the first planet carrier 23 to rotate, the first planet carrier 23 drives the first planet gear 22 to rotate, the first planet gear 22 drives the first sun gear 21 to rotate, the first sun gear 21 is connected to the second output shaft 95 and drives the second output shaft 95 to rotate, the second output shaft 95 further drives the second planet gear 92 on the second planet carrier 93 to rotate, at this time, the second sun gear 91 is locked, so the second external gear ring 94 is driven to rotate, the second external gear ring 94 is engaged with the electric fixing device 3, and the electric fixing device 3 fails due to power loss, and at this time, it can be regarded as a transmission gear to reset the execution system.
As shown in fig. 2, the drive system in the present embodiment further includes a housing that is engaged with the first outer ring gear 24. A manual controller 6 is mounted on the housing through the housing. In the present embodiment, in particular the manual control 6, passes through the housing and engages with the first external gear ring 24 via the worm 10. The helix angle of the worm 10 is smaller than the friction angle of the contact between the worm and the first external gear ring 24, i.e. β < Φ, β being the helix angle of the worm 10 and Φ being the friction angle. In this embodiment, a cylindrical worm is used for transmission, the worm 10 is a driving part, and the first external gear ring 24 is a driven part, that is, the worm 10 can only drive the first external gear ring 24, but the first external gear ring 24 cannot drive the worm 10, that is, reverse stroke self-locking is realized, and a protection effect is achieved.
As shown in fig. 1, the drive system of the present embodiment further includes a lock device 5, and the lock device 5 is mounted on the housing through the housing. In this embodiment, the locking means 5 is a bolt, and a part of the locking means 5 is located outside the housing and a part is located inside the housing, in particular the locking means 5 passes through the housing to abut against the second external gear ring 94 or to disengage from the second external gear ring 94. In this embodiment, the locking means 5 is a device such as a rod or a bolt, and when the locking means 5 is in a fixed state, i.e. when the locking means 5 passes through the housing against the second external gear ring 94, the locking means 5 engages with the second external gear ring 94 to lock the second external gear ring 94; when in the released state, the locking device 5 is moved away from the second external toothing, the second external toothing 94 being separated from the locking device 5, so that the second external toothing 94 can be rotated, thus enabling the artificial control of the drive system.
Some embodiments also provide a valve arrangement comprising the drive system of any of the above embodiments, and a valve to which the first output shaft 25 is connected to start and close the valve.
In the description of the present disclosure, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, should not be taken as limiting the scope of the present disclosure.
The above examples are only for illustrating the technical solutions of the present disclosure, and not for limiting the same. Although the present disclosure has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present disclosure. All other embodiments made by those skilled in the art without any inventive step are within the scope of the present disclosure.
Claims (10)
1. A drive system, comprising:
a drive device;
a first planetary gear mechanism including a first sun gear, a first planet gear, a first carrier, and a first outer ring gear, wherein the first carrier is provided with a first output shaft;
a worm meshed with the first outer gear ring;
the second planetary gear mechanism comprises a second sun gear, a second planet carrier and a second external gear ring, wherein the second planet carrier is provided with a second output shaft, and the second output shaft is connected with the first sun gear; and
a manual controller for driving the worm;
the driving device is connected with the second sun gear to drive the second sun gear.
2. The drive system of claim 1, wherein the drive means rotates the second sun gear when in the first state, and wherein the drive means is off and the second sun gear is stationary when in the second state.
3. The drive system of claim 1, further comprising a housing engaged with the first outer ring gear.
4. The drive system of claim 3, wherein the worm passes through and is mounted on the housing, one end of the worm being connected to the manual controller and the other end of the worm being engaged with the first outer gear ring.
5. The drive system of claim 3, further comprising a locking device passing through the housing and mounted on the housing.
6. The drive system of claim 5, wherein the locking device engages the second outer gear ring to lock the second outer gear ring when the locking device is in the secured state; when in the released state, the second external gear ring is disengaged from the locking means, so that the second external gear ring can rotate.
7. The drive system of claim 1, wherein the helix angle of the worm is less than the friction angle at which the worm contacts the first outer gear ring, i.e. β < Φ, β being the helix angle of the worm and Φ being the friction angle.
8. The drive system of claim 1, further comprising an electric fixture engaged with the second outer ring gear; when the electric fixing device is in the first state, the second external gear ring is limited to rotate by the electric fixing device; when the electric fixing device is in the second state, the electric fixing device is closed, and the second external gear ring can rotate under the action of external force.
9. The drive system of claim 8, wherein when in the first state, the drive device is in an energized state with the electrical fixture; when the electric fixing device is in the second state, the driving device and the electric fixing device are in a power-off state.
10. A valve arrangement comprising a drive system as claimed in any one of claims 1 to 9 and a valve, the first output shaft being connected to the valve to open and close the valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023213179.9U CN215806696U (en) | 2020-12-28 | 2020-12-28 | Drive system and valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023213179.9U CN215806696U (en) | 2020-12-28 | 2020-12-28 | Drive system and valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215806696U true CN215806696U (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023213179.9U Active CN215806696U (en) | 2020-12-28 | 2020-12-28 | Drive system and valve structure |
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| CN (1) | CN215806696U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116241805A (en) * | 2023-05-10 | 2023-06-09 | 高邮市锐迈精密机械有限公司 | Adjustable pump valve |
| CN117072742A (en) * | 2023-10-12 | 2023-11-17 | 常州诚磊阀门科技股份有限公司 | valve actuator |
-
2020
- 2020-12-28 CN CN202023213179.9U patent/CN215806696U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116241805A (en) * | 2023-05-10 | 2023-06-09 | 高邮市锐迈精密机械有限公司 | Adjustable pump valve |
| CN117072742A (en) * | 2023-10-12 | 2023-11-17 | 常州诚磊阀门科技股份有限公司 | valve actuator |
| CN117072742B (en) * | 2023-10-12 | 2024-01-19 | 常州诚磊阀门科技股份有限公司 | Valve actuator |
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