CN219098087U

CN219098087U - Rotary sealing valve

Info

Publication number: CN219098087U
Application number: CN202222910002.7U
Authority: CN
Inventors: 肖平
Original assignee: Wuxi Kepu New Material Technology Co ltd
Current assignee: Wuxi Kepu New Material Technology Co ltd
Priority date: 2022-11-02
Filing date: 2022-11-02
Publication date: 2023-05-30
Anticipated expiration: 2032-11-02

Abstract

The utility model discloses a rotary sealing valve, which belongs to the technical field of sealing valves and comprises an integrally formed valve body, a rotating shaft penetrating through the center of the valve body, a star-shaped rotor sleeved on the rotating shaft, wherein a second bearing is arranged in an inner cavity of the star-shaped rotor and sleeved on the rotating shaft, a third bearing positioned in a cavity of the star-shaped rotor is arranged on one side of the second bearing, which is positioned between the second bearing and the valve body, a cylindrical wall extends outwards from the middle part of one side of the valve body, which is positioned near the star-shaped rotor, the third bearing is sleeved outside the cylindrical wall, the end of the cylindrical wall is sleeved on the rotating shaft and abuts against the side surface of the second bearing, and the rotating shaft is fixedly connected with the star-shaped rotor through keys, so that the rotating shaft is concentric with the valve body and can smoothly rotate with the valve body in a concentric manner through the fixing effect of a first bearing between the outer wall of the star-shaped rotor and the inner wall of the valve body.

Description

Rotary sealing valve

Technical Field

The utility model belongs to the technical field of sealing valves, and particularly relates to a rotary sealing valve.

Background

The rotary sealing valve is called a rotary valve or a star-shaped ash discharge valve, has the functions of uniform feeding, uniform receiving and sealing, and is wide in application fields in China, the rotary sealing valve is provided with a valve body and a rotor arranged in the valve body, and the upper end of the valve body is provided with a feed inlet, and the lower end of the valve body is provided with a discharge outlet; the rotating shaft is provided with a central main shaft and blades, the central main shaft and the blades of the rotor form a receiving cavity, and the rotor is in a continuous rotating state in the working process to receive and discharge materials.

In the rotary seal valve of the prior art, it was found that at least the following problems exist: 1. the middle of the blade of the rotor bears materials, and the materials are discharged when the blade rotates to the lower part, so that the blade always operates in unbalanced weight and unbalance, the rotor is sunk after long-term operation, dynamic balance is destroyed, and the sealing pairs at the two ends of the rotating shaft are damaged due to overload and bearing; 2. after the blades of the rotor blades are used for a long time, the blades are worn, so that the clearance between the blades of the rotor blades and the valve body is out of tolerance, and air locking cannot be performed; the above problems are urgently needed to be solved.

Disclosure of Invention

The utility model aims to: the rotary sealing valve solves the problems existing in the prior art.

The technical scheme is as follows: the utility model provides a rotary seal valve, includes integrated into one piece's valve body, wears to establish the pivot at valve body center, the cover is established pivot epaxial star rotor, be equipped with the second bearing in the inner chamber of star rotor, the second bearing cover is established in the pivot, the second bearing is close to one side of valve body is equipped with the third bearing that is located star rotor cavity, the third bearing is located the second bearing with between the valve body, the middle part that the valve body is close to star rotor one side outwards extends a tube-shape wall, the third bearing cover is established in the tube-shape wall outside, tube-shape wall cover is established in the pivot and its tip supports the side of second bearing.

In a further embodiment, a first bearing is sleeved on the outer wall of the star-shaped rotor, and the first bearing is inserted into the valve body.

In a further embodiment, a sealing cover located at the outer side of the valve body is sleeved on the rotating shaft, a cavity is formed in the sealing cover, a sealing block sleeved on the rotating shaft is arranged in the cavity, one side of the sealing block is tightly attached to the outer wall of the valve body, and a sealing spring is fixedly connected between the other side of the sealing block and the sealing block.

In a further embodiment, an internal thread is arranged on the inner wall of the sealing cover, a sealing groove for the threaded connection of the sealing cover is arranged on the valve body, and an external thread matched with the internal thread is arranged in the sealing groove.

In a further embodiment, the rotating shaft is fixedly connected with the star-shaped rotor through a key, any rotating shaft end is fixedly connected with a gear, and the gear is arranged outside the sealing cover and connected with an external power mechanism.

In a further embodiment, the top end of the valve body is provided with a feed inlet, the bottom end of the valve body is provided with a discharge outlet, and the feed inlet and the discharge outlet are communicated with the inner cavity of the valve body.

In a further embodiment, a plurality of baffles used for rotating raw materials are arranged on the star-shaped rotor, a spring is arranged in an inner cavity of the baffle, a limiting block is arranged at the top end of the spring and is in sliding connection with the inner cavity of the baffle, a connecting block inserted on the baffle is arranged at the top end of the limiting block, and a blade clung to the inner wall of the valve body is fixedly connected to the end part of the connecting block.

The beneficial effects are that:

1. through the second bearing and the third bearing fixed in the cavity of the star rotor, the star rotor is concentric with the valve body, and the rotating shaft is fixedly connected with the star rotor through the key, so the rotating shaft is concentric with the valve body and is matched with the fixing function of the first bearing between the outer wall of the star rotor and the inner wall of the valve body, the rotating shaft can smoothly rotate with the valve body in a concentric manner, the phenomenon of clamping does not occur, and simultaneously, the use of the second bearing can lead the star rotor to bear larger load and has good maintenance function on the stability of the device.

2. The spring not only can fix stopper, connecting block and blade, and when the blade leads to wearing and tearing owing to work for a long time, the spring can promote stopper and move towards valve body inner wall direction, and the stopper promotes connecting block and blade and moves towards valve body inner wall direction, makes the blade hug closely the valve body inner wall always, builds airtight environment, locks gas.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged view of FIG. 1 at A;

fig. 3 is a schematic view of another view structure of the present utility model.

The reference numerals in the drawings are: 1. a rotating shaft; 2. a star rotor; 3. a valve body; 4. a feed inlet; 5. a discharge port; 6. a first bearing; 7. a key; 8. a second bearing; 9. a third bearing; 10. sealing cover; 11. an internal thread; 12. a seal spring; 13. a sealing block; 14. sealing grooves; 15. a gear; 16. a partition plate; 17. a spring; 18. a limiting block; 19. a connecting block; 20. a blade.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

As shown in fig. 1-3, a rotary sealing valve comprises an integrally formed valve body 3, a rotating shaft 1 penetrating through the center of the valve body 3, a star-shaped rotor 2 sleeved on the rotating shaft 1, a feed inlet 4 arranged at the top end of the valve body 3, a discharge outlet 5 arranged at the bottom end of the valve body 3, and a plurality of partition boards 16 for rotating raw materials arranged on the star-shaped rotor 2, wherein the feed inlet 4 and the discharge outlet 5 are communicated with the inner cavity of the valve body 3.

Through the technical scheme, materials are added into the valve body 3 from the feed inlet 4, enter a closed space formed by the partition plate 16 and the valve body 3 after being processed by the partition plate 16, and are discharged when the partition plate 16 rotates below the star-shaped rotor 2, and then are led out of the valve body 3 through the discharge port 5, so that the whole process is convenient and quick.

As shown in fig. 1-3, the rotating shaft 1 is fixedly connected with the star-shaped rotor 2 through a key 7, a gear 15 is fixedly connected with the end part of any rotating shaft 1, and the gear 15 is arranged outside the sealing cover 10 and is connected with an external power mechanism.

Through above-mentioned technical scheme, external power mechanism passes through gear 15 and drives pivot 1 rotation, because pivot 1 and star rotor 2 pass through key 7 fixed connection, therefore pivot 1 can drive star rotor 2 rotation, and star rotor 2 rotates convenient follow-up operation.

As shown in fig. 1-3, a second bearing 8 is arranged in the inner cavity of the star-shaped rotor 2, the second bearing 8 is sleeved on the rotating shaft 1, a third bearing 9 positioned in the cavity of the star-shaped rotor 2 is arranged on one side, close to the valve body 3, of the second bearing 8, the third bearing 9 is positioned between the second bearing 8 and the valve body 3, the middle part, close to one side of the star-shaped rotor 2, of the valve body 3 extends outwards to form a cylindrical wall, the third bearing 9 is sleeved outside the cylindrical wall, the cylindrical wall is sleeved on the rotating shaft 1, the end part of the cylindrical wall abuts against the side surface of the second bearing 8, a first bearing 6 is sleeved on the outer wall of the star-shaped rotor 2, and the first bearing 6 is inserted in the valve body 3.

Through above-mentioned technical scheme, through the second bearing 8 and the third bearing 9 fixed in the cavity of star rotor 2, can make star rotor 2 concentric with valve body 3, and pivot 1 and star rotor 2 pass through key 7 fixed connection, so pivot 1 concentric with valve body 3, the fixed action of the first bearing 6 between the outer wall of the second bearing 1 and the inner wall of valve body 3 of cooperation star rotor 2 again, pivot 1 can smooth and easy concentric with valve body 3 rotation, can not appear the card phenomenon, and the use of second bearing 8 can make star rotor 2 bear bigger load simultaneously, also has fine maintenance effect to the stability of device.

As shown in fig. 1-3, a sealing cover 10 positioned at the outer side of a valve body 3 is sleeved on a rotating shaft 1, a cavity is arranged in the sealing cover 10, a sealing block 13 sleeved on the rotating shaft 1 is arranged in the cavity, one side of the sealing block 13 is tightly attached to the outer wall of the valve body 3, a sealing spring 12 is fixedly connected between the other side of the sealing block 13 and the sealing block 13, an inner thread 11 is arranged on the inner wall of the sealing cover 10, a sealing groove 14 for the threaded connection of the sealing cover 10 is arranged on the valve body 3, and an outer thread (not shown in the figure) matched with the inner thread 11 is arranged in the sealing groove 14.

Through the technical scheme, the sealing cover 10 is connected with the valve body 3 through the internal threads 11 and the external threads, so that the sealing cover is convenient to install and disassemble, and the workload of workers is reduced; the sealing block 13 can plug the gap between the valve body 3 and the rotating shaft 1, and the sealing block 13 can be firmly attached to the valve body 3 by matching with the fastening action of the sealing spring 12 on the sealing block 13, so that the gap between the valve body 3 and the rotating shaft 1 is indirectly sealed.

As shown in fig. 1-3, a spring 17 is arranged in the inner cavity of the partition plate 16, a limiting block 18 is arranged at the top end of the spring 17, the limiting block 18 is slidably connected with the inner cavity of the partition plate 16, a connecting block 19 inserted on the partition plate 16 is arranged at the top end of the limiting block 18, and a blade 20 tightly attached to the inner wall of the valve body 3 is fixedly connected to the end part of the connecting block 19.

Through the technical scheme, the spring 17 not only can fix the limiting block 18, the connecting block 19 and the blade 20, when the blade 20 is worn due to long-time work, the spring 17 can push the limiting block 18 to move towards the inner wall direction of the valve body 3, and the limiting block 18 pushes the connecting block 19 and the blade 20 to move towards the inner wall direction of the valve body 3, so that the blade 20 is always clung to the inner wall of the valve body 3, a closed environment is created, and gas is locked.

Working principle: the material is added into the valve body 3 from the feed inlet 4, the external power mechanism drives the rotating shaft 1 to rotate through the gear 15, the rotating shaft 1 can drive the star-shaped rotor 2 to rotate, the star-shaped rotor 2 rotates to drive the baffle plate 16 to rotate, the baffle plate 16 rotates to treat the material, the treated material enters a closed space formed by the baffle plate 16 and the valve body 3, and the baffle plate 16 discharges the material when rotating to the lower side along with the star-shaped rotor 2, and then the material is led out of the valve body 3 through the discharge port 5; when the blade 20 works and wears for a long time, the spring 17 pushes the limiting block 18 to move towards the inner wall direction of the valve body 3, the limiting block 18 pushes the connecting block 19 and the blade 20 to move towards the inner wall direction of the valve body 3, the blade 20 is always clung to the inner wall of the valve body 3, a closed environment is created, and gas is locked.

In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations of the utility model are not described in detail in order to avoid unnecessary repetition.

Claims

1. A rotary seal valve, characterized by: including integrated into one piece's valve body (3), wear to establish pivot (1) at valve body (3) center, the cover is established star rotor (2) on pivot (1), be equipped with second bearing (8) in the inner chamber of star rotor (2), second bearing (8) cover are established on pivot (1), one side that second bearing (8) is close to valve body (3) is equipped with third bearing (9) that are located star rotor (2) cavity, third bearing (9) are located second bearing (8) with between valve body (3), valve body (3) are close to the middle part of star rotor (2) one side and outwards extend a tube-shape wall, third bearing (9) cover is established outside the tube-shape wall, tube-shape wall cover is established on pivot (1) and its tip supports the side of second bearing (8).

2. A rotary seal valve according to claim 1, wherein: the outer wall of the star-shaped rotor (2) is sleeved with a first bearing (6), and the first bearing (6) is inserted into the valve body (3).

3. A rotary seal valve according to claim 1, wherein: the rotary shaft (1) is sleeved with a sealing cover (10) positioned on the outer side of the valve body (3), a cavity is formed in the sealing cover (10), a sealing block (13) sleeved on the rotary shaft (1) is arranged in the cavity, one side of the sealing block (13) is tightly attached to the outer wall of the valve body (3), and a sealing spring (12) is fixedly connected between the other side of the sealing block (13) and the sealing block (13).

4. A rotary seal valve according to claim 3, wherein: the inner wall of the sealing cover (10) is provided with an internal thread (11), the valve body (3) is provided with a sealing groove (14) for the threaded connection of the sealing cover (10), and an external thread matched with the internal thread (11) is arranged in the sealing groove (14).

5. A rotary seal valve according to claim 4, wherein: the rotary shaft (1) is fixedly connected with the star-shaped rotor (2) through a key (7), any end part of the rotary shaft (1) is fixedly connected with a gear (15), and the gear (15) is arranged on the outer side of the sealing cover (10) and is connected with an external power mechanism.

6. A rotary seal valve according to claim 1, wherein: the novel valve is characterized in that a feed inlet (4) is formed in the top end of the valve body (3), a discharge outlet (5) is formed in the bottom end of the valve body (3), and the feed inlet (4) and the discharge outlet (5) are communicated with an inner cavity of the valve body (3).

7. A rotary seal valve according to claim 6, wherein: be equipped with a plurality of baffles (16) that are used for rotating the raw materials on star rotor (2), baffle (16) inner chamber is equipped with spring (17), spring (17) top is equipped with stopper (18), stopper (18) with baffle (16) inner chamber sliding connection, stopper (18) top is equipped with inserts and establishes connecting block (19) on baffle (16), connecting block (19) end fixedly connected with blade (20) that valve body (3) inner wall hugged closely.