CN215445272U

CN215445272U - Butterfly valve hydraulic driving device

Info

Publication number: CN215445272U
Application number: CN202122145771.8U
Authority: CN
Inventors: 倪科鸿
Original assignee: Zhoushan Youlian Marine Engineering Co ltd
Current assignee: Zhoushan Youlian Marine Engineering Co ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-01-07
Anticipated expiration: 2031-09-07

Abstract

The utility model provides a butterfly valve hydraulic driving device, which solves the problems of complex structure and large volume of the existing butterfly valve control equipment. The method is characterized in that: including casing and top cap, install the output shaft of being connected with the butterfly valve in the casing, the axle sleeve is installed to the output shaft, be equipped with the blade on the axle sleeve, be equipped with the cavity in the casing, the blade separates the cavity for a chamber and No. two chambers, the top cap be equipped with an inlet port of a chamber intercommunication and with No. two inlet ports of No. two chamber intercommunications, the bottom in a chamber and No. two chambers all is equipped with the oil outlet. Through leading into hydraulic oil in chamber one or No. two intracavity, thereby hydraulic oil promotes the blade and rotates and make the axle sleeve rotate, thereby the axle sleeve drives the output shaft and rotates opening or closing of control butterfly valve, overall structure is simple, and small moment of torsion is big simultaneously.

Description

Butterfly valve hydraulic driving device

Technical Field

The utility model relates to the field of butterfly valve driving equipment, in particular to a butterfly valve hydraulic driving device.

Background

The existing butterfly valve generally carries out linkage control directly through a power motor, a plurality of gears with different diameters are arranged between the power motor and a rotary output shaft for controlling the butterfly valve to open and close, and the function of changing the rotating speed and increasing the torsion force is completed through the gears; this control method has a problem of complicated structure and large volume.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the background art, the utility model provides a hydraulic driving device for a butterfly valve, which solves the problems of complex structure and large volume of the existing butterfly valve control equipment.

The technical scheme adopted by the utility model is as follows:

butterfly valve hydraulic drive device, including casing and top cap, install the output shaft of being connected with the butterfly valve in the casing, the axle sleeve is installed to the output shaft, be equipped with the blade on the axle sleeve, be equipped with the cavity in the casing, the blade separates the cavity for a chamber and No. two chambers, the top cap be equipped with an inlet port of a chamber intercommunication and with No. two inlet ports of No. two chamber intercommunications, the bottom in a chamber and No. two chambers all is equipped with the oil outlet.

The limiting block is installed to the output shaft, the limiting block is located the top cap top, the sensor is installed to the top cap, the sensor is located the limiting block both sides.

And sealing strips are arranged on the circumferential surfaces of the blades.

The circumference of blade is equipped with the recess, the sealing strip part is located the recess, the elasticity that is connected between recess and the sealing strip piece that resets.

And fillets are arranged on two sides of one end, far away from the blade, of the sealing strip.

The inner wall of casing and the diapire of top cap all are equipped with smooth coating.

The equipartition has two at least cavities in the casing, every all be furnished with in the cavity with the blade, intercommunication each other between the chamber, intercommunication each other between No. two chambers.

And connecting holes are uniformly distributed in the circumferential direction of the bottom of the shell.

The utility model has the beneficial effects that:

through leading into hydraulic oil in chamber one or No. two intracavity, thereby hydraulic oil promotes the blade and rotates and make the axle sleeve rotate, thereby the axle sleeve drives the output shaft and rotates opening or closing of control butterfly valve, overall structure is simple, and small moment of torsion is big simultaneously.

Drawings

FIG. 1 is a schematic of the present invention.

Fig. 2 is an internal schematic view of the present invention.

Fig. 3 is a schematic view of the bushing and vane of the present invention.

Fig. 4 is a schematic cross-sectional view of the present invention.

The device comprises a shell 1, a top cover 2, an output shaft 3, a shaft sleeve 4, a blade 5, a first cavity 6, a second cavity 7, a first oil inlet hole 8, a second oil inlet hole 9, an oil outlet hole 10, a limiting block 11, a sensor 12, a sealing strip 13, a groove 14, an elastic resetting piece 15, a fillet 16, a smooth coating 17 and a connecting hole 18.

Detailed Description

The utility model will be further illustrated with reference to the following examples and drawings:

in the embodiment, as shown in fig. 1, fig. 2, fig. 3, butterfly valve hydraulic drive device, including casing 1 and top cap 2, install the output shaft 3 of being connected with the butterfly valve in the casing 1, the axle sleeve 4 is installed to output shaft 3, be equipped with blade 5 on the axle sleeve 4, be equipped with the cavity in the casing 1, blade 5 separates the cavity for a chamber 6 and No. two chambers 7, top cap 2 is equipped with an inlet port 8 with a chamber 6 intercommunication and No. two inlet port 9 with No. two chamber 7 intercommunications, the bottom in a chamber 6 and No. two chambers 7 all is equipped with oil outlet 10. Through leading into hydraulic oil in chamber 6 or No. two chambers 7 past, thereby hydraulic oil promotes 5 rotations of blade and makes axle sleeve 4 rotate, thereby axle sleeve 4 drives 3 rotations of output shaft control butterfly valves open or close, overall structure is simple, and small moment of torsion is big simultaneously.

In the embodiment, as shown in fig. 1, the output shaft 3 is provided with a limiting block 11, the limiting block 3 is located above the top cover 2, the top cover 2 is provided with a sensor 12, and the sensor 12 is located on two sides of the limiting block 11. After the blade 5 rotates to a certain angle and contacts with the side wall of the cavity, the limiting block 11 is matched with the sensor 12, the sensor 12 controls the oil pump or the electromagnetic valve to be closed, and the blade is prevented from being damaged by continuous oil inlet in the cavity.

In the embodiment, as shown in fig. 2 and 3, the circumferential surfaces of the blades 5 are all provided with sealing strips 13. The sealing function is achieved, a gap is prevented from being reserved between the first cavity 6 and the second cavity 7, and hydraulic oil flows into the gap.

In the embodiment, as shown in fig. 4, the blade 5 is provided with a groove 14 in the circumferential direction, the sealing strip 13 is partially positioned in the groove 14, and the elastic restoring piece 15 is connected between the groove 14 and the sealing strip 13. The elastic reset piece is a 15-position spring which always exerts an acting force on the sealing strip 13, so that the sealing strip 14 is tightly attached to the inner wall of the shell 1 and the bottom wall of the top cover 2, and the sealing performance of each chamber is guaranteed.

In the embodiment shown in fig. 3, the sealing strip 13 is provided with rounded corners 16 on both sides of the end thereof remote from the blade 5. The sealing strip 13 is prevented from interfering with the inner wall of the housing 1 during movement, and the resistance to movement is reduced.

In the embodiment, as shown in fig. 4, the inner wall of the housing 1 and the bottom wall of the top cover 2 are both provided with a smooth coating 17. The smooth coating 17 is a teflon coating to reduce frictional resistance to movement of the sealing strip 14 when in contact with the inner wall of the housing 1 and the bottom wall of the top cover 2.

In the embodiment, as shown in fig. 2, at least two cavities are uniformly distributed in the housing 1, each cavity is internally provided with a blade 5, the first cavities 6 are communicated with each other, and the second cavities 7 are communicated with each other. The hydraulic oil acts on the plurality of vanes 5 simultaneously, and the output shaft 3 is easily rotated.

In the embodiment, as shown in fig. 1, the bottom of the housing 1 is uniformly provided with connecting holes 18 in the circumferential direction. The bolts penetrate through the connecting holes to be directly connected, and the assembly and disassembly are convenient.

It should be understood that the above-described embodiments of the present invention are merely examples for illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. There is no need or no way to give poor examples of all embodiments. And such obvious changes and modifications which are within the spirit of the utility model are deemed to be covered by the present invention.

Claims

1. Butterfly valve hydraulic drive device, its characterized in that: including casing (1) and top cap (2), install output shaft (3) of being connected with the butterfly valve in casing (1), axle sleeve (4) are installed in output shaft (3), be equipped with blade (5) on axle sleeve (4), be equipped with the cavity in casing (1), blade (5) are separated the cavity for a chamber (6) and No. two chamber (7), top cap (2) are equipped with one inlet port (8) with a chamber (6) intercommunication and with No. two inlet port (9) of No. two chamber (7) intercommunication, the bottom of a chamber (6) and No. two chamber (7) all is equipped with oil outlet (10).

2. The butterfly valve hydraulic drive of claim 1, wherein: stopper (11) are installed in output shaft (3), stopper (11) are located top cap (2) top, sensor (12) are installed in top cap (2), sensor (12) are located stopper (11) both sides.

3. The butterfly valve hydraulic drive of claim 1, wherein: and sealing strips (13) are arranged on the circumferential surfaces of the blades (5).

4. A butterfly valve hydraulic drive as claimed in claim 3, wherein: the circumference of blade (5) is equipped with recess (14), sealing strip (13) part is located recess (14), elasticity piece (15) that reset of being connected between recess (14) and sealing strip (13).

5. A butterfly valve hydraulic drive as claimed in claim 3, wherein: and fillets (16) are arranged on two sides of one end, far away from the blade (5), of the sealing strip (13).

6. The butterfly valve hydraulic drive of claim 1, wherein: the inner wall of the shell (1) and the bottom wall of the top cover (2) are both provided with smooth coatings (17).

7. The butterfly valve hydraulic drive of claim 1, wherein: at least two cavities are uniformly distributed in the shell (1), each cavity is internally provided with a blade (5), the first cavity (6) is communicated with the second cavity (7) in a mutual communication mode.

8. The butterfly valve hydraulic drive of claim 1, wherein: and connecting holes (18) are uniformly distributed at the bottom of the shell (1) in the circumferential direction.