CN211039889U - Hand wheel cover structure of electric valve actuator - Google Patents
Hand wheel cover structure of electric valve actuator Download PDFInfo
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- CN211039889U CN211039889U CN201921469173.2U CN201921469173U CN211039889U CN 211039889 U CN211039889 U CN 211039889U CN 201921469173 U CN201921469173 U CN 201921469173U CN 211039889 U CN211039889 U CN 211039889U
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- hand wheel
- shaft
- handwheel
- valve actuator
- actuator
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Abstract
The utility model discloses an electric valve actuator hand wheel cover structure, including hand wheel cover, executor hand wheel, bearing, skeleton oil blanket, sealing washer, transmission shaft, the executor hand wheel includes hand wheel axle, hand wheel dish, the hand wheel cover has the shaft cavity, be equipped with the shaft hole in the bottom of shaft cavity, the hand wheel axle passes sealing washer, shaft hole and hand wheel dish outward from the shaft cavity in proper order, the hand wheel axle passes through the sealing washer with the bottom of shaft cavity is close sealing connection; the transmission shaft sequentially penetrates through the bearing, the framework oil seal and the upper end of the hand wheel shaft to be movably connected, and is rotatably connected with the hand wheel cover through the bearing and is hermetically connected with the inner wall of the shaft cavity through the framework oil seal. This electric valve executor hand wheel lid structure sets up skeleton oil blanket and sealing washer on the hand wheel lid, forms dual seal structure, improves the gas tightness, prevents inside water, gas enter into the valve body to reach explosion-proof effect.
Description
Technical Field
The utility model relates to an electric valve executor field especially relates to an electric valve executor hand wheel lid structure.
Background
In the prior art, manual wheels are arranged in electric valve actuators and used for manual control when an electric execution part cannot work. For some gas pipelines, coal mines or flammable and explosive occasions, even spark of one wire can bring huge damage to human and property, and high requirements are put on the performance of the electric actuator working under such a strict environment.
Therefore, it is highly desirable to develop a handwheel cover having an explosion-proof function.
Disclosure of Invention
An object of the utility model is to provide an electric valve executor hand wheel lid structure, this electric valve executor hand wheel lid structure cover at the hand wheel and set up skeleton oil blanket and sealing washer, form double seal structure, improve the gas tightness, prevent inside water, gas enter into the valve body to reach explosion-proof effect.
The technical scheme is as follows:
the hand wheel cover structure of the electric valve actuator comprises a hand wheel cover, an actuator hand wheel, a bearing, a skeleton oil seal, a sealing ring and a transmission shaft, wherein the actuator hand wheel comprises a hand wheel shaft and a hand wheel disc; the transmission shaft sequentially penetrates through the bearing, the framework oil seal and the upper end of the hand wheel shaft to be movably connected, and is rotatably connected with the hand wheel cover through the bearing and is hermetically connected with the inner wall of the shaft cavity through the framework oil seal.
The hand wheel shaft penetrates through the sealing ring, the shaft hole and the spring from the shaft cavity to the outside in sequence and is connected with the hand wheel disc, two ends of the spring are respectively connected with the hand wheel cover and the hand wheel disc in a propping and tight mode, and the hand wheel shaft is connected with the bottom of the shaft cavity in a propping and sealing mode through the sealing ring.
The actuator hand wheel further comprises a screw, and the hand wheel shaft is connected with the hand wheel disc through the screw.
The actuator hand wheel further comprises a handle, the hand wheel disc is circular, the handle is connected with the peripheral edge of the hand wheel disc, and the handle and the hand wheel shaft are respectively located on two opposite sides of the hand wheel disc.
The hand wheel shaft is characterized in that a groove is formed in the end face of the transmission shaft in the direction towards the hand wheel shaft, a connecting end is arranged on the end face of the hand wheel shaft in one end of the transmission shaft, the connecting end is matched with the groove, and the hand wheel shaft is inserted into the groove through the connecting end and is movably connected with the transmission shaft.
The groove and the connecting end are respectively in a hexagonal prism shape, and the hexagonal prism-shaped connecting end is matched and movably connected with the hexagonal prism-shaped groove.
The outer side of the upper end of the hand wheel shaft is integrally provided with a convex ring along the circumferential direction of the hand wheel shaft, and the hand wheel shaft is matched with the sealing ring through the convex ring and is close to the bottom of the shaft cavity for sealing connection.
The outer side of the upper end of the hand wheel shaft is further provided with a sealing clamping groove, the sealing clamping groove is surrounded below the convex ring, the sealing ring is an O-shaped ring, and the sealing ring is installed on the sealing clamping groove.
It should be noted that:
in the description of the present invention, it is to be understood that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of description of the present invention and simplification of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The advantages or principles of the invention are explained below:
1. the hand wheel cover structure of the electric valve actuator comprises a hand wheel cover, an actuator hand wheel, a bearing, a skeleton oil seal, a sealing ring and a transmission shaft, wherein the transmission shaft is movably connected with a hand wheel shaft; the first heavy seal of the actuator hand wheel and the hand wheel cover is that the hand wheel shaft is closely sealed with the bottom of the shaft cavity through a seal ring, and the second heavy seal of the actuator hand wheel and the hand wheel cover is sealed with the inner wall of the shaft cavity through a framework oil seal to realize double seal; this electric valve executor hand wheel lid structure sets up skeleton oil blanket and sealing washer on the hand wheel lid, forms dual seal structure, improves the gas tightness, prevents inside water, gas enter into the valve body to reach explosion-proof effect.
2. This electric valve executor hand wheel lid structure still includes the spring, and the both ends of spring are supported tightly with hand wheel lid, hand wheel dish respectively and are connected, and according to the attribute of spring, the hand wheel lid passes through the spring and exports a decurrent power of adding to the executor hand wheel to make the upper end of hand wheel axle support tight sealing washer, carry the sealed effect of seal chart.
3. The hand wheel shaft is connected with the hand wheel disc through the screw, so that the assembly is convenient, and the cost is saved.
4. The setting of handle, when needing to carry out manual control to electric valve executor, it is more convenient to operate.
5. The hand wheel shaft is inserted into the groove through the connecting end to be movably connected with the transmission shaft, so that the movable connection of the hand wheel shaft and the transmission shaft is more convenient.
6. The hexagonal prism-shaped connecting end is matched and movably connected with the hexagonal prism-shaped groove, so that the connection stability of the hand wheel shaft and the transmission shaft is improved.
7. The arrangement of the convex ring ensures that the sealing of the sealing ring is more stable.
8. The sealing ring is arranged on the sealing clamping groove, so that the sealing ring is prevented from falling off in the manual switching process of the actuator hand wheel.
Drawings
Fig. 1 is a sectional view of a hand wheel cover structure of an electric valve actuator according to an embodiment of the present invention.
Fig. 2 is a sectional view of the hand wheel cover structure actuator of the electric valve actuator of the embodiment of the present invention.
Description of reference numerals:
10. the hand wheel comprises a hand wheel cover, 11, a shaft cavity, 12, a shaft hole, 20, an actuator hand wheel, 21, a hand wheel shaft, 211, a connecting end, 212, a convex ring, 213, a sealing clamping groove, 22, a hand wheel disc, 23, a screw, 24 handles, 30, a bearing, 40, a framework oil seal, 50, a sealing ring, 60, a transmission shaft, 61, a groove, 70 and a spring.
Detailed Description
The following describes embodiments of the present invention in detail.
As shown in fig. 1 to 2, the hand wheel cover structure of the electric valve actuator comprises a hand wheel cover 10, an actuator hand wheel 20, a bearing 30, a skeleton oil seal 40, a seal ring 50 and a transmission shaft 60, wherein the actuator hand wheel 20 comprises a hand wheel shaft 21 and a hand wheel disc 22, the hand wheel cover 10 is provided with a shaft cavity 11, a shaft hole 12 is arranged at the bottom of the shaft cavity 11, the hand wheel shaft 21 sequentially penetrates through the seal ring 50 and the shaft hole 12 from the inside to the outside of the shaft cavity 11 to be connected with the hand wheel disc 22, and the hand wheel shaft 21 is closely connected with the bottom of the shaft cavity 11 in a sealing manner; the transmission shaft 60 passes through the bearing 30 and the framework oil seal 40 in sequence to be movably connected with the upper end of the hand wheel shaft 21, and is rotatably connected with the hand wheel cover 10 through the bearing 30 and is hermetically connected with the inner wall of the shaft cavity 11 through the framework oil seal 40.
The transmission shaft 60 is movably connected with the hand wheel shaft 21, when the electric valve actuator needs to be manually controlled, the hand wheel shaft 21 of the actuator hand wheel 20 can be connected with the transmission shaft 60, and when the electric valve actuator needs to be electrically controlled, the hand wheel shaft 21 of the actuator hand wheel 20 can be separated from the transmission shaft 60; the first heavy seal between the actuator hand wheel 20 and the hand wheel cover 10 is that the hand wheel shaft 21 is closely sealed with the bottom of the shaft cavity 11 through a seal ring 50, and the second heavy seal between the actuator hand wheel 20 and the hand wheel cover 10 is sealed with the inner wall of the shaft cavity 11 through a framework oil seal 40, so that double seal is realized; according to the hand wheel cover structure of the electric valve actuator, the framework oil seal 40 and the sealing ring 50 are arranged on the hand wheel cover 10, so that a double-sealing structure is formed, the air tightness is improved, and water and air are prevented from entering the valve body so as to achieve an explosion-proof effect.
The hand wheel cover structure of the electric valve actuator further comprises a spring 70, a hand wheel shaft 21 sequentially penetrates through a sealing ring 50, a shaft hole 12 and the spring 70 from the inside to the outside of the shaft cavity 11 to be connected with a hand wheel disc 22, two ends of the spring 70 are respectively and tightly connected with the hand wheel cover 10 and the hand wheel disc 22 in an abutting mode, and the hand wheel shaft 21 is in abutting sealing connection with the bottom of the shaft cavity 11 through the sealing ring 50. According to the property of the spring 70, the hand wheel cover 10 applies a downward force to the actuator hand wheel 20 through the spring 70, so that the upper end of the hand wheel shaft 21 is pressed against the sealing ring 50, and the sealing effect of the sealing diagram is improved.
The actuator hand wheel 20 further comprises a screw 23 and a handle 24, and the hand wheel shaft 21 is connected with the hand wheel disc 22 through the screw 23. The assembly is convenient, and the cost is saved.
The handwheel disc 22 is circular, the handle 24 is connected with the peripheral edge of the handwheel disc 22, and the handle 24 and the handwheel shaft 21 are respectively positioned at two opposite sides of the handwheel disc 22. The handle 24 is arranged, so that the operation is more convenient when manual control is required to be carried out on the electric valve actuator.
The end surface of the transmission shaft 60 towards the hand wheel shaft 21 is provided with a groove 61, the end surface of the hand wheel shaft 21 towards one end of the transmission shaft 60 is provided with a connecting end 211, the connecting end 211 is matched with the groove 61, and the hand wheel shaft 21 is inserted into the groove 61 through the connecting end 211 and is movably connected with the transmission shaft 60. The movable connection of the hand wheel shaft 21 and the transmission shaft 60 is more convenient.
Preferably, the groove 61 and the connecting end 211 are respectively in a hexagonal prism shape, and the connecting end 211 in the hexagonal prism shape is movably connected with the groove 61 in the hexagonal prism shape in a matching manner. The stability of the connection of the hand wheel shaft 21 and the transmission shaft 60 is improved.
The outer side of the upper end of the hand wheel shaft 21 is integrally provided with a convex ring 212 along the circumferential direction, and the hand wheel shaft 21 is matched with the sealing ring 50 through the convex ring 212 and is connected with the bottom of the shaft cavity 11 in a sealing way. The provision of the protruding ring 212 makes the sealing of the sealing ring 50 more stable.
The outer side of the upper end of the hand wheel shaft 21 is also provided with a sealing clamping groove 213, the sealing clamping groove 213 surrounds the lower part of the convex ring 212, the sealing ring 50 is an O-shaped ring, and the sealing ring 50 is arranged on the sealing clamping groove 213. The sealing ring 50 is mounted on the sealing groove 213, so that the sealing ring 50 is prevented from falling off in the manual switching process of the actuator handwheel 20.
The above are only specific embodiments of the present invention, and the protection scope of the present invention is not limited thereby; any replacement and improvement made on the basis of not violating the conception of the utility model belong to the protection scope of the utility model.
Claims (8)
1. The hand wheel cover structure of the electric valve actuator is characterized by comprising a hand wheel cover, an actuator hand wheel, a bearing, a skeleton oil seal, a sealing ring and a transmission shaft, wherein the actuator hand wheel comprises a hand wheel shaft and a hand wheel disc; the transmission shaft sequentially penetrates through the bearing, the framework oil seal and the upper end of the hand wheel shaft to be movably connected, and is rotatably connected with the hand wheel cover through the bearing and is hermetically connected with the inner wall of the shaft cavity through the framework oil seal.
2. The hand wheel cover structure of the electric valve actuator as claimed in claim 1, further comprising a spring, wherein the hand wheel shaft passes through the sealing ring, the shaft hole and the spring from the shaft cavity to the outside in sequence and is connected with the hand wheel disc, two ends of the spring are respectively connected with the hand wheel cover and the hand wheel disc in a propping and tight manner, and the hand wheel shaft is connected with the bottom of the shaft cavity in a propping and sealing manner through the sealing ring.
3. The electrically operated valve actuator handwheel cap structure of claim 1, wherein the actuator handwheel further includes a screw through which the handwheel shaft is connected to the handwheel disk.
4. The electrically operated valve actuator handwheel cap structure of claim 1, wherein the actuator handwheel further comprises a handle, the handwheel disk is circular, the handle is connected with the outer peripheral edge of the handwheel disk, and the handle and the handwheel shaft are respectively positioned on two opposite sides of the handwheel disk.
5. An electrically operated valve actuator hand wheel cover arrangement according to any of claims 1 to 4 wherein the drive shaft is provided with a recess in the end face thereof facing the hand wheel shaft, the hand wheel shaft being provided with a connection end on the end face thereof facing the end of the drive shaft, the connection end being adapted to fit into the recess, the hand wheel shaft being movably connected to the drive shaft by insertion of the connection end into the recess.
6. The cover structure for the hand wheel of the electric valve actuator as claimed in claim 5, wherein the grooves and the connecting ends are respectively in a hexagonal prism shape, and the connecting ends in the hexagonal prism shape are movably connected with the grooves in the hexagonal prism shape in a matching manner.
7. An electrically operated valve actuator hand wheel cover structure according to any one of claims 1 to 4 wherein a raised ring is integrally formed on the outer side of the upper end of the hand wheel shaft along the circumference thereof, and the hand wheel shaft is sealingly connected to the bottom of the shaft cavity by the raised ring and the seal ring.
8. The electric valve actuator handwheel cover structure of claim 7, wherein the handwheel shaft is further provided with a sealing clamping groove on the outer side of the upper end, the sealing clamping groove surrounds the lower part of the convex ring, the sealing ring is an O-shaped ring, and the sealing ring is arranged on the sealing clamping groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921469173.2U CN211039889U (en) | 2019-09-04 | 2019-09-04 | Hand wheel cover structure of electric valve actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921469173.2U CN211039889U (en) | 2019-09-04 | 2019-09-04 | Hand wheel cover structure of electric valve actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211039889U true CN211039889U (en) | 2020-07-17 |
Family
ID=71534361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921469173.2U Active CN211039889U (en) | 2019-09-04 | 2019-09-04 | Hand wheel cover structure of electric valve actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211039889U (en) |
-
2019
- 2019-09-04 CN CN201921469173.2U patent/CN211039889U/en active Active
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