CN211371343U

CN211371343U - Sealing device for rotating shaft of adjusting ball valve

Info

Publication number: CN211371343U
Application number: CN201921694498.0U
Authority: CN
Inventors: 陈健
Original assignee: Taizhou Chen's Copper Co ltd
Current assignee: Taizhou Chen's Copper Co ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-08-28
Anticipated expiration: 2029-10-11

Abstract

The utility model belongs to the technical field of adjust ball valve equipment, especially, adjust ball valve axis of rotation sealing device, including the ball valve body, the flowing groove has all been seted up on the both sides surface of ball valve body, the inner wall of flowing groove is fixedly connected with left flow valve and right flow valve respectively, the equal fixedly connected with sealing washer in surface of the surface of left side flow valve and right flow valve, left rand has been seted up on the one end surface of left side flow valve, right rand has been seted up on the one end surface of right side flow valve, the inside of ball valve body is provided with sealing device, sealing device is including the ball valve. This adjust ball valve axis of rotation sealing device is provided with sealing device through the inside that sets up the ball valve body, and sealing device is including the ball valve, and the surface of ball valve slides with the inner wall of left rand and the inner wall of right rand respectively and pegs graft to reached through the sealed effect of strengthening of multilayer, improved life, avoided the effect that the conventionality has damaged.

Description

Sealing device for rotating shaft of adjusting ball valve

Technical Field

The utility model relates to an adjust ball valve technical field, especially relate to an adjust ball valve axis of rotation sealing device.

Background

The regulating ball valve is a right-angle rotary regulating valve, and is formed from two portions of GT pneumatic piston type actuating mechanism (single-action and double-action) and V-shaped ball valve. The sealing form of the sealing device is defined by soft sealing and metal hard sealing. The pneumatic V-shaped adjusting ball valve is of a right-angle rotary structure, so that the pneumatic V-shaped adjusting ball valve has a strong shearing effect when the valve core rotates relative to the valve seat, and is particularly suitable for adjusting and controlling fiber and tiny media. Is widely used in the industries of petroleum, chemical industry, electric power, paper making, metallurgy and the like.

For example, chinese patent application publication No. CN 201620889815.4 discloses a pipe control valve, although the problem is solved that by providing a spherical wall plate at the ball flow passage, the spherical wall plate is provided with the through hole, which can play the roles of pressure reduction and throttling, solve the problems of high noise and strong vibration when the valve works under the working condition of high pressure difference, reduce the energy consumption of the valve, improve the working environment of operators, and simultaneously, when the adjusting ball valve is in a half-open state, the unbalanced force of the ball body and the valve seat is counteracted through the contact of the spherical wall plate and the valve seat, the abrasion of the valve seat and the ball body is reduced, the service life of the valve is prolonged, however, most of the ball valve rods are only sealed by simple sealing rings when rotating, and when the rotating rod is used for a long time, the sealing ring is damaged to cause leakage, so that the service life is short, and a sealing device for a rotating shaft of an adjusting ball valve is needed.

SUMMERY OF THE UTILITY MODEL

Based on present ball valve rod most only adopt simple sealing washer sealed when the pivoted, the dwang is when long-term the use, and the sealing washer damage leads to revealing, leads to the not long technical problem of life, the utility model provides an adjust ball valve axis of rotation sealing device.

The utility model provides an adjust ball valve axis of rotation sealing device, including the ball valve body, the flowing groove has all been seted up on the both sides surface of ball valve body, the inner wall of flowing groove is fixedly connected with left flow valve and right flow valve respectively, the surface of left flow valve and the equal fixedly connected with sealing washer in surface of right flow valve, left rand has been seted up on the one end surface of left flow valve, right rand has been seted up on the one end surface of right flow valve, the inside of ball valve body is provided with sealing device, sealing device is including the ball valve, the surface of ball valve is pegged graft with the inner wall of left rand and the inner wall of right rand slip respectively.

Preferably, one end surface of the ball valve is in threaded connection with a valve rod, and the other end surface of the ball valve is in threaded connection with a rotating rod.

Preferably, the inner bottom wall of the flow groove is fixedly connected with a first bearing, and the inner ring of the first bearing is fixedly connected with the surface of the rotating rod;

through above-mentioned technical scheme, set up the rotation that first bearing has strengthened the dwang, reduced the friction of dwang.

Preferably, the inner top wall of the flow groove is provided with a spiral sealing groove, the surface of the ball valve rod is fixedly connected with a spiral sealing ring, and the surface of the spiral sealing ring is in sliding insertion connection with the inner wall of the spiral sealing groove;

through above-mentioned technical scheme, set up the spiral seal circle and reached the sealed area of increase, strengthen sealed effect.

Preferably, one end of the ball valve rod penetrates through and extends to the outer surface of the ball valve body, and is fixedly connected with a rotating wheel, the upper surface of the ball valve rod is provided with a pressing groove, and the inner bottom wall of the pressing groove is provided with a second bearing groove;

through above-mentioned technical scheme, set up and compress tightly the groove and be convenient for the pressure strip to compress tightly the fixed effect of second bearing.

Preferably, the inner bottom wall of the second bearing groove is provided with a cover plate groove, the inner bottom wall of the cover plate groove is provided with a sealing cavity, and high-pressure grease is arranged inside the sealing cavity;

through above-mentioned technical scheme, set up the high-pressure butter and reached sealed and lubricated effect, strengthen sealed effect through the multilayer seal, improve its life.

Preferably, the inner wall of the cover plate groove is clamped with the cover plate, the inner wall of the second bearing groove is fixedly connected with a second bearing, the inner ring of the second bearing is fixedly connected with the surface of the ball valve rod, and the inner wall of the compression groove is connected with a compression plate through screw threads;

through above-mentioned technical scheme, set up the apron and reached high-pressure butter and store sealed effect.

The utility model provides a beneficial effect does:

be provided with sealing device through the inside that sets up the ball valve body, sealing device is including the ball valve, and the surface of ball valve slides with the inner wall of left rand and the inner wall of right rand respectively and pegs graft to reached through the sealed effect of strengthening sealedly of multilayer, improved life, avoided the effect that the conventionality has damaged.

Drawings

FIG. 1 is a schematic view of a sealing device for a rotating shaft of an adjustable ball valve;

FIG. 2 is an enlarged view of the seal at A of FIG. 1 for a rotary shaft of an adjustable ball valve;

fig. 3 is a perspective view of a ball valve body structure of a sealing device for a rotating shaft of an adjusting ball valve.

In the figure: 1. a ball valve body; 2. a flow channel; 3. a left flow valve; 4. a right flow valve; 5. a seal ring; 6. a left collar; 7. a right collar; 8. a ball valve; 9. a ball valve stem; 10. rotating the rod; 11. a first bearing; 12. a spiral seal groove; 13. a spiral seal ring; 14. a rotating wheel; 15. a compaction groove; 16. a second bearing groove; 17. a cover plate groove; 18. sealing the cavity; 19. a cover plate; 20. a second bearing; 21. and a pressing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a sealing device for a rotating shaft of an adjusting ball valve comprises a ball valve body 1, flow grooves 2 are respectively formed in the surfaces of two sides of the ball valve body 1, the inner walls of the flow grooves 2 are respectively and fixedly connected with a left flow valve 3 and a right flow valve 4, and the surface of the left flow valve 3 and the surface of the right flow valve 4 are respectively and fixedly connected with a sealing ring 5;

a left clamping ring 6 is arranged on the surface of one end of the left flow valve 3, a right clamping ring 7 is arranged on the surface of one end of the right flow valve 4, a sealing device is arranged in the ball valve body 1 and comprises a ball valve 8, and the surface of the ball valve 8 is respectively in sliding insertion connection with the inner wall of the left clamping ring 6 and the inner wall of the right clamping ring 7; the surface of one end of the ball valve 8 is in threaded connection with a ball valve rod 9, and the surface of the other end of the ball valve 8 is in threaded connection with a rotating rod 10; the inner bottom wall of the flow groove 2 is fixedly connected with a first bearing 11, the inner ring of the first bearing 11 is fixedly connected with the surface of the rotating rod 10, and the first bearing is arranged to strengthen the rotation of the rotating rod and reduce the friction of the rotating rod;

a spiral sealing groove 12 is formed in the inner top wall of the flow groove 2, a spiral sealing ring 13 is fixedly connected to the surface of the ball valve rod 9, the surface of the spiral sealing ring 13 is in sliding insertion connection with the inner wall of the spiral sealing groove 12, and the spiral sealing ring is arranged to achieve the effects of increasing the sealing area and strengthening the sealing;

one end of the ball valve rod 9 penetrates through and extends to the outer surface of the ball valve body 1 and is fixedly connected with a rotating wheel 14, the upper surface of the ball valve rod 9 is provided with a pressing groove 15, the inner bottom wall of the pressing groove 15 is provided with a second bearing groove 16, and the pressing groove is arranged to facilitate the pressing plate to press the second bearing for fixing; the inner bottom wall of the second bearing groove 16 is provided with a cover plate groove 17, the inner bottom wall of the cover plate groove 17 is provided with a sealing cavity 18, high-pressure grease is arranged in the sealing cavity 18, the high-pressure grease is arranged to achieve the sealing and lubricating effects, the sealing effect is enhanced through multi-layer sealing, and the service life of the bearing is prolonged; the inner wall of the cover plate groove 17 is clamped with the cover plate 19, the inner wall of the second bearing groove 16 is fixedly connected with a second bearing 20, the inner ring of the second bearing 20 is fixedly connected with the surface of the ball valve rod 9, the inner wall of the pressing groove 15 is connected with a pressing plate 21 through screw threads, and the cover plate is arranged to achieve the effect of high-pressure grease storage and sealing; be provided with sealing device through the inside that sets up ball valve body 1, sealing device is including ball valve 8, and the surface of ball valve 8 slides with the inner wall of left rand 6 and the inner wall of right rand 7 respectively and pegs graft to reached through the sealed effect of strengthening sealedly of multilayer, improved life, avoided the effect that the conventionality has damaged.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an adjust ball valve axis of rotation sealing device, includes ball valve body (1), its characterized in that: flow groove (2) have all been seted up on the both sides surface of ball valve body (1), the inner wall difference fixedly connected with left flow valve (3) and right flow valve (4) of flow groove (2), the surface of left flow valve (3) and the equal fixedly connected with sealing washer (5) in surface of right flow valve (4), left rand (6) have been seted up on the one end surface of left flow valve (3), right rand (7) have been seted up on the one end surface of right flow valve (4), the inside of ball valve body (1) is provided with sealing device, sealing device is including ball valve (8), the surface of ball valve (8) is pegged graft with the inner wall of left rand (6) and the inner wall slip of right rand (7) respectively.

2. An adjustable ball valve rotary shaft seal assembly as defined in claim 1, further comprising: the ball valve is characterized in that one end surface of the ball valve (8) is in threaded connection with a ball valve rod (9), and the other end surface of the ball valve (8) is in threaded connection with a rotating rod (10).

3. An adjustable ball valve rotary shaft seal assembly as defined in claim 1, further comprising: the inner bottom wall of the flow groove (2) is fixedly connected with a first bearing (11), and the inner ring of the first bearing (11) is fixedly connected with the surface of the rotating rod (10).

4. An adjustable ball valve rotary shaft seal assembly as defined in claim 2 wherein: spiral seal groove (12) have been seted up to the interior roof of flowing groove (2), the fixed surface of ball valve rod (9) is connected with spiral seal circle (13), the surface of spiral seal circle (13) is pegged graft with the inner wall slip of spiral seal groove (12).

5. An adjustable ball valve rotary shaft seal assembly as defined in claim 2 wherein: one end of the ball valve rod (9) penetrates through and extends to the outer surface of the ball valve body (1), the rotating wheel (14) is fixedly connected with the ball valve rod, a pressing groove (15) is formed in the upper surface of the ball valve rod (9), and a second bearing groove (16) is formed in the inner bottom wall of the pressing groove (15).

6. An adjustable ball valve rotary shaft seal assembly as defined in claim 5 wherein: the inner bottom wall of second bearing groove (16) has seted up apron groove (17), sealed chamber (18) have been seted up to the inner bottom wall of apron groove (17), the inside in sealed chamber (18) is provided with high-pressure butter.

7. An adjustable ball valve rotary shaft seal assembly as defined in claim 6 wherein: inner wall joint apron (19) of apron groove (17), the inner wall fixedly connected with second bearing (20) of second bearing groove (16), the inner circle of second bearing (20) is connected with the fixed surface of ball valve rod (9), the inner wall that compresses tightly groove (15) has pressure strip (21) through screw threaded connection.