CN216618535U

CN216618535U - Rotating shaft sealing structure for connecting fluid equipment

Info

Publication number: CN216618535U
Application number: CN202123061753.8U
Authority: CN
Inventors: 王海洋; 赵文伟; 季国平; 李信; 姜华
Original assignee: Wuxi Xinlaike Machinery Co ltd
Current assignee: Wuxi Xinlaike Machinery Co ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-05-27
Anticipated expiration: 2031-12-08

Abstract

The utility model relates to a rotating shaft sealing structure for connecting fluid equipment, which comprises a rotating shaft, wherein a bearing is fixedly connected to the surface of the rotating shaft, a shell is arranged on the surface of the rotating shaft, a sealing block is arranged between the shell and the bearing, an annular sealing cavity is formed in the sealing block, adjusting plates are arranged on the upper side and the lower side of the sealing cavity, the longitudinal sections of the two adjusting plates are arranged in a C shape, a rubber pad is fixedly connected to one side of each adjusting plate, and the rubber pad is positioned above the bearing, so that the rotating shaft sealing structure has the following advantages: through the locating piece of the rotation removal location intracavity portion of threaded rod to the regulating plate breaks away from the position restriction of locating piece, and the regulating plate is under the effect of first spring, and the rubber pad that removes regulating plate one side seals fixedly to the bearing, and then prevents that liquid from getting into the machine hole along the axis of rotation, influences other equipment, has seted up through stopper and collection box inside and has collected the chamber, collects the accumulational liquid in axis of rotation surface.

Description

Rotating shaft sealing structure for connecting fluid equipment

Technical Field

The utility model relates to a pivot seal structure technical field, concretely relates to connect pivot seal structure of fluidic device.

Background

The leakage-stopping ring of the turbine runner can generate a small amount of water leakage, and the water leakage can enter a machine pit along a gap between the main shaft and the fixed part to prevent other equipment from normally operating, so that a leakage-stopping sealing device is required to be arranged on the rotating shaft.

The present commonly used packing is sealed, and the filler quantity is more, and the filler department of depths is difficult to fully compress tightly more, if the filler ring of depths fully compresses tightly, then filler department of drill way department is excessively compressed, and wearing and tearing are serious, lead to the sealed effect not good easy to cause wearing and tearing to the device.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems that the conventional common packing is sealed, the quantity of the packing is more, the packing at the deep part is difficult to be fully compressed, if the packing ring at the deep part is fully compressed, the packing at an orifice is excessively compressed, the abrasion is serious, the sealing effect is poor, and the device is easy to be abraded.

The technical scheme adopted by the utility model for solving the technical problem is as follows: the utility model relates to a rotary shaft sealing structure for connecting fluid equipment, which comprises: the axis of rotation, the fixed surface of axis of rotation is connected with the bearing, the surface of axis of rotation is provided with the casing, be provided with sealed piece between casing and the bearing, sealed piece is inside to have seted up annular seal chamber, the upper and lower both sides in seal chamber all are provided with the regulating plate, two the regulating plate longitudinal section is "C" shape setting, one side fixedly connected with rubber pad of regulating plate, the rubber pad is located the bearing top.

According to a preferable technical scheme of the utility model, one side of the adjusting plate is fixedly connected with a first spring, the other end of the first spring is fixedly connected with the inner wall of the sealing block, both ends of the surface of the adjusting plate are fixedly connected with vertical rods, the vertical rods are inserted into the sealing block in a sliding manner, the position of a rubber pad on one side of the adjusting plate is adjusted through the elasticity of the first spring, and the vertical rods provide a stable supporting effect on the movement of the adjusting plate.

As a preferred technical scheme, two sides of the adjusting plate are arranged in a positioning cavity, a positioning block is arranged in the positioning cavity, one side of the positioning block is rotatably connected with a threaded rod, one end of the threaded rod penetrates through one side of the sealing block, the threaded rod is in threaded connection with the inside of the sealing block, the positioning block moves from the positioning cavity in the adjusting plate by rotating the threaded rod, and the adjusting plate is separated from the position limit of the positioning block.

As a preferable technical scheme, the surface of the shell is fixedly provided with a supporting frame, the top of the supporting frame is fixedly provided with a collecting box, the top of the collecting box is fixedly provided with a limiting block, the limiting block is arranged below the rotating shaft, the collecting box is positioned on one side of the sealing block, and a collecting cavity is formed in the limiting block and the collecting box to collect liquid accumulated on the surface of the rotating shaft.

According to a preferred technical scheme, the limiting block and the collecting box are respectively provided with a collecting cavity inside, the collecting box is fixedly provided with a guide plate inside, a through hole is formed in the guide plate, the two sides of the bottom of the guide plate are respectively and fixedly connected with a mounting block, the mounting block is fixedly connected with a positioning shaft inside, the positioning shaft is rotatably connected with a transverse plate, the surface of the positioning shaft is sleeved with a reset spring, the two ends of the reset spring are respectively and fixedly connected with the surface of the transverse plate and the inside of the mounting block, and the through hole formed in the guide plate is sealed in a one-way mode through the transverse plate arranged at the bottom of the guide plate, so that liquid backflow is prevented from reentering the surface of the rotating shaft or the inside of equipment.

The utility model has the following advantages: through the locating piece of the rotation mobile location intracavity portion of threaded rod, thereby the regulating plate breaks away from the position restriction of locating piece, the regulating plate is under the effect of first spring, the rubber pad that removes regulating plate one side seals the bearing fixedly, and then prevent that liquid from getting into the machine hole along the axis of rotation, influence other equipment, through the stopper with collect the box inside and seted up the collection chamber, collect the accumulational liquid in axis of rotation surface, the diaphragm that rethread deflector bottom set up, the through-hole of seting up the deflector carries out one-way seal, prevent that liquid from flowing back from getting into the surface of axis of rotation or the inside of equipment again.

Drawings

Fig. 1 is a schematic view showing the overall structure of a rotary shaft sealing structure of a fluid coupling device according to a preferred embodiment of the present invention;

FIG. 2 is an enlarged schematic view of a seal for a rotating shaft of a fluid coupling device in accordance with a preferred embodiment of the present invention at A of FIG. 1;

FIG. 3 is an enlarged schematic view at B of FIG. 2 of a seal for a rotating shaft of a fluid coupling device according to a preferred embodiment of the present invention;

FIG. 4 is a side schematic view of a spindle seal assembly mounting block and cross plate for coupling to a fluid device in accordance with a preferred embodiment of the present invention;

fig. 5 is a perspective view of a collecting case and a stopper in a rotary shaft sealing structure of a fluid device according to a preferred embodiment of the present invention.

Description of reference numerals: 1. a rotating shaft; 2. a bearing; 3. a housing; 4. a sealing block; 5. sealing the cavity; 6. an adjusting plate; 7. a rubber pad; 8. a first spring; 9. a vertical rod; 10. a positioning cavity; 11. positioning blocks; 12. a threaded rod; 13. a support frame; 14. a collection box; 15. a limiting block; 16. a collection chamber; 17. a guide plate; 18. a through hole; 19. mounting blocks; 20. positioning the shaft; 21. a transverse plate; 22. a return spring.

Detailed Description

The technical scheme of the utility model is clearly and completely described in the following with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model will be further explained with reference to the drawings.

Referring to fig. 1-5, a sealing structure for a rotating shaft of a fluid device according to the present invention includes: axis of rotation 1, axis of rotation 1's fixed surface is connected with bearing 2, axis of rotation 1's surface is provided with casing 3, be provided with sealed piece 4 between casing 3 and the bearing 2, sealed piece 4 is inside has seted up annular seal chamber 5, the upper and lower both sides of sealed chamber 5 all are provided with regulating

plate

6, 6 longitudinal sections of two regulating plates are "C" shape setting, one side fixedly connected with rubber pad 7 of regulating plate 6, rubber pad 7 is located the bearing 2 top, the inside locating piece 11 of rotation removal location chamber 10 through threaded rod 12, thereby regulating plate 6 breaks away from the position restriction of locating piece 11, regulating plate 6 is under first spring 8's effect, the rubber pad 7 of removing regulating plate 6 one side seals bearing 2 fixedly, and then prevent that liquid from getting into the machine hole along axis of rotation 1, influence other equipment.

Wherein, one side of first spring 8 fixed connection regulating plate 6, the other end of the first spring 8 of inner wall fixed connection of sealed piece 4, the surface of montant 9 fixed connection regulating plate 6, the inside of sealed piece 4 is slided and is pegged graft there is montant 9, the position of the rubber pad 7 of regulating plate 6 one side is adjusted through the elasticity of first spring 8, montant 9 provides the stabilizing support effect to the removal of regulating plate 6, location chamber 10 sets up the both sides in regulating plate 6, locating piece 11 sets up the inside in location chamber 10, threaded rod 12 rotates the consequently of connecting locating piece 11, the one end of threaded rod 12 runs through sealed piece 4 one side, and threaded rod 12 and the inside threaded connection of sealed piece 4, through rotating threaded rod 12 and locating piece 11 removes from regulating plate 6 inside location chamber 10, regulating plate 6 breaks away from the position restriction of locating piece 11.

Wherein, the surface of the shell 3 is fixedly arranged on the support frame 13, the top of the support frame 13 is fixedly arranged on the collection box 14, the top of the collection box 14 is fixedly arranged on the limit block 15, the limit block 15 is positioned below the rotating shaft 1, the collection box 14 is positioned on one side of the sealing block 4, the collection cavity 16 is arranged inside the limit block 15 and the collection box 14 to collect the liquid accumulated on the surface of the rotating shaft 1, the collection cavity 16 is arranged inside the limit block 15 and the collection box 14, the guide plate 17 is fixedly arranged inside the collection box 14, the through hole 18 is arranged inside the guide plate 17, the bottoms of the guide plates 17 are fixedly arranged on the two installation blocks 19, the inside of the installation blocks 19 is fixedly arranged on the positioning shaft 20, the reset spring 22 is sleeved on the surface of the positioning shaft 20, the transverse plate 21 is rotatably sleeved on the surface of the positioning shaft 20, the surface of the transverse plate 21 and the inside of the installation blocks 19 are respectively and fixedly connected with the two ends of the reset spring 22, the through hole 18 opened on the guide plate 17 is sealed in one way by the transverse plate 21 arranged at the bottom of the guide plate 17, and the liquid is prevented from flowing back to enter the surface of the rotating shaft 1 or the inside of the equipment again.

The working principle is as follows: the staff passes through rotation threaded rod 12 and the locating piece 11 removes from the inside location chamber 10 of regulating plate 6, regulating plate 6 breaks away from behind the position restriction of locating piece 11, regulating plate 6 is under first spring 8's effect, the rubber pad 7 that removes regulating plate 6 one side seals fixedly to bearing 2, thereby prevent that liquid from getting into the machine hole along axis of rotation 1, influence other equipment, the stopper 15 that sets up through axis of rotation 1 below simultaneously collects the liquid on axis of rotation 1 surface with collect box 14, liquid gets into the bottom of collecting chamber 16 through deflector 17, the diaphragm 21 that rethread deflector 17 bottom set up, diaphragm 21 one side is connected with installation piece 19 through reset spring 22, the through-hole 18 of seting up to deflector 17 carries out one-way seal, prevent that liquid from flowing back from reentering the inside of the surface of axis of rotation 1 or equipment.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.

Other parts of the utility model not described in detail are prior art and are not described in detail herein.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rotary shaft seal structure for connecting fluid devices, comprising: axis of rotation (1), the fixed surface of axis of rotation (1) is connected with bearing (2), the surface of axis of rotation (1) is provided with casing (3), be provided with between casing (3) and bearing (2) sealed piece (4), annular seal chamber (5) have been seted up to sealed piece (4) inside, the upper and lower both sides of sealed chamber (5) all are provided with regulating plate (6), two regulating plate (6) longitudinal section is "C" shape setting, one side fixedly connected with rubber pad (7) of regulating plate (6), rubber pad (7) are located bearing (2) top.

2. The rotary shaft sealing structure of connecting fluid equipment according to claim 1, wherein one side of the adjusting plate (6) is fixedly connected with a first spring (8), the other end of the first spring (8) is fixedly connected with the inner wall of the sealing block (4), both ends of the surface of the adjusting plate (6) are fixedly connected with vertical rods (9), and the vertical rods (9) are slidably inserted into the sealing block (4).

3. The rotary shaft sealing structure of a connecting fluid device according to claim 1, wherein two sides of the adjusting plate (6) are opened in the positioning cavity (10), a positioning block (11) is disposed inside the positioning cavity (10), a threaded rod (12) is rotatably connected to one side of the positioning block (11), one end of the threaded rod (12) penetrates through one side of the sealing block (4), and the threaded rod (12) is in threaded connection with the inside of the sealing block (4).

4. The sealing structure of a rotating shaft of a connecting fluid device according to claim 1, wherein a supporting frame (13) is fixedly installed on the surface of the housing (3), a collecting box (14) is fixedly installed on the top of the supporting frame (13), a limiting block (15) is fixedly installed on the top of the collecting box (14), the limiting block (15) is arranged below the rotating shaft (1), and the collecting box (14) is located on one side of the sealing block (4).

5. The rotating shaft sealing structure for connecting fluid equipment according to claim 4, wherein the limiting block (15) and the collecting box (14) are both provided with a collecting cavity (16), the collecting box (14) is fixedly provided with a guide plate (17), the guide plate (17) is provided with a through hole (18), the guide plate (17) is fixedly provided with a mounting block (19) on both sides of the bottom, the mounting block (19) is fixedly connected with a positioning shaft (20) on the inside, the positioning shaft (20) is rotatably connected with a transverse plate (21), the surface of the positioning shaft (20) is sleeved with a return spring (22), and the two ends of the return spring (22) are respectively fixedly connected with the surface of the transverse plate (21) and the inside of the mounting block (19).