CN214999407U

CN214999407U - Mechanical seal for multi-spring stirrer and kettle

Info

Publication number: CN214999407U
Application number: CN202121412197.1U
Authority: CN
Inventors: 刘建森
Original assignee: Anhui Anmi Mechanical Seal Co ltd
Current assignee: Anhui Anmi Mechanical Seal Co ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2021-12-03
Anticipated expiration: 2031-06-24

Abstract

The utility model discloses a mechanical seal is used to multi-spring agitator and cauldron, including the (mixing) shaft, the surface cover of (mixing) shaft is equipped with quiet ring seat, the inside of quiet ring seat is equipped with the quiet ring of graphite, the both sides of the quiet ring of graphite all are equipped with first fluorine rubber ring, the surface of first fluorine rubber ring is equipped with quiet ring gland, the seal groove has been seted up to the inboard of quiet ring seat, the inside of seal groove is equipped with seal ring, one side threaded connection of quiet ring gland has multiunit fixing bolt, graphite quiet ring one side is equipped with the rotating ring, the inboard of the quiet ring of graphite and rotating ring all is equipped with the mounting groove. Through this design, under the effect of seal groove, seal ring, mounting groove, wear-resisting packing ring, it is lower to have solved stirring shaft junction stability, influences its problem of sealed effect to and reduce the wearing and tearing severity between graphite stationary ring and the rotating ring, thereby improved its life of graphite stationary ring and rotating ring.

Description

Mechanical seal for multi-spring stirrer and kettle

Technical Field

The utility model belongs to the technical field of mechanical seal, concretely relates to mechanical seal is used to multi-spring agitator and cauldron.

Background

The mechanical seal, namely the end face seal, has at least one pair of end faces perpendicular to the rotation axis, and the end faces are kept jointed with the other end and relatively slide under the action of the fluid pressure and the elastic compensation force of the elastic element, so that the sealing effect is achieved. The mechanical seal has the advantages of reliable operation, long service life, small leakage, low power loss, small abrasion loss to the shaft and the like, is widely applied, has important practical significance for energy conservation and emission reduction, effectively reduces the phenomena of leakage, overflow, dripping and leakage, and has important effect on environmental protection.

When using, the existing multi-spring mechanical seal assembly vibrates in the operation process due to the stirrer or the reaction kettle, so that the stability of the connection part of the stirring shaft of the mechanical seal assembly is lower, the sealing effect of the mechanical seal assembly is influenced, and meanwhile, the mechanical seal assembly generates resonance inside, so that the abrasion between the graphite static ring and the graphite moving ring is serious, and the service life of the device is shortened.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a mechanical seal for multi-spring stirrer and cauldron, it is lower to have solved the stability of stirring shaft junction, influences the problem of its sealed effect to and reduce the wearing and tearing severity between graphite quiet ring and the rotating ring.

In order to solve the technical problem, the utility model provides a following technical scheme: a mechanical seal for a multi-spring stirrer and a kettle comprises a stirring shaft, wherein a static ring seat is sleeved on the outer surface of the stirring shaft, a graphite static ring is arranged inside the static ring seat, first fluorine rubber rings are arranged on two sides of the graphite static ring, a static ring gland is arranged on the outer surface of the first fluorine rubber ring, a seal groove is formed in the inner side of the static ring seat, a seal ring is arranged inside the seal groove, a plurality of groups of fixing bolts are connected to one side of the static ring gland in a threaded manner, a moving ring is arranged on one side of the graphite static ring, mounting grooves are formed in the inner sides of the graphite static ring and the moving ring, a wear-resistant gasket is arranged inside the mounting grooves, a second fluorine rubber ring is arranged inside the moving ring, a plurality of groups of spring grooves are formed in one side of the moving ring, helical cylindrical springs are arranged inside the plurality of groups of spring grooves, three adjusting screw rods are arranged on one side of the moving ring, and nuts are connected to the outer surfaces of the three adjusting screw rods in a threaded manner, and a spring seat is arranged on one side of the movable ring, and a plurality of groups of screws are connected to the outer surface of the spring seat in a threaded manner.

As a preferred technical scheme of the utility model, three hole has been seted up to the inside of spring holder, and the inside diameter of hole and adjusting screw's cross section diameter looks adaptation.

As an optimal technical scheme of the utility model, the cross-section of rotating ring is "U" font setting, the cross-section of spring holder is "T" font setting.

As a preferred technical scheme of the utility model, the seal groove is the annular setting, and the width looks adaptation of seal groove and seal ring.

As a preferred technical scheme of the utility model, adjusting screw is triangular distribution and sets up, one side of spring holder is equipped with the recess, and spiral cylindrical spring is connected for the block with the recess.

Compared with the prior art, the utility model discloses the beneficial effect that can reach is:

1. through the design, under the action of the sealing groove, the sealing washer, the mounting groove and the wear-resistant washer, the problems that the sealing effect of the stirring shaft is influenced due to lower stability of the connecting part of the stirring shaft are solved, and the abrasion severity degree between the graphite static ring and the graphite moving ring is reduced, so that the service lives of the graphite static ring and the graphite moving ring are prolonged;

2. through the triangular distribution setting to adjusting screw, when rotating three nut for adjusting screw evenly moves down, has avoided spiral cylindrical spring's elastic deformation to promote down, makes the nut take place the offset, has reduced the torsion change when the nut rotates then, avoids the great problem of nut wearing and tearing, has improved nut and adjusting screw's life then, and is more stable when having carried out the spring to spiral cylindrical spring and having adjusted.

Drawings

Fig. 1 is a schematic sectional front view of the structure of the present invention;

fig. 2 is an enlarged view of the structure at a in fig. 1 according to the present invention;

fig. 3 is a schematic side view of the spring seat of the present invention.

Wherein: 1. a stirring shaft; 2. a stationary ring seat; 3. a graphite stationary ring; 4. a stationary ring gland; 5. fixing the bolt; 6. a first fluorine rubber ring; 7. a sealing groove; 8. a sealing gasket; 9. mounting grooves; 10. a wear-resistant washer; 11. a moving ring; 12. a second fluorine rubber ring; 13. a spring seat; 14. adjusting the screw rod; 15. a nut; 16. a spring slot; 17. a helical cylindrical spring; 18. and (4) screws.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the invention easy to understand, the invention is further explained below with reference to the specific embodiments, but the following embodiments are only the preferred embodiments of the invention, not all. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

as shown in fig. 1-3, a mechanical seal for a multi-spring stirrer and a kettle comprises a stirring shaft 1, a stationary ring seat 2 is sleeved on the outer surface of the stirring shaft 1, a graphite stationary ring 3 is arranged inside the stationary ring seat 2, first fluorine rubber rings 6 are arranged on both sides of the graphite stationary ring 3, a stationary ring gland 4 is arranged on the outer surface of the first fluorine rubber rings 6, a sealing groove 7 is arranged on the inner side of the stationary ring seat 2, a sealing washer 8 is arranged inside the sealing groove 7, a plurality of sets of fixing bolts 5 are connected to one side of the stationary ring gland 4 through threads, a movable ring 11 is arranged on one side of the graphite stationary ring 3, mounting grooves 9 are arranged on both the inner sides of the graphite stationary ring 3 and the movable ring 11, a wear-resistant washer 10 is arranged inside the mounting grooves 9, a second fluorine rubber ring 12 is arranged on the inner side of the movable ring 11, a plurality of sets of spring grooves 16 are arranged on one side of the movable ring 11, a spiral cylindrical spring 17 is arranged inside the plurality of sets of spring grooves 16, and three adjusting screws 14 are arranged on one side of the movable ring 11, the outer surfaces of the three adjusting screw rods 14 are all in threaded connection with nuts 15, one side of the movable ring 11 is provided with a spring seat 13, and the outer surface of the spring seat 13 is in threaded connection with a plurality of groups of screws 18;

when the joint of the stirring shaft 1 is sealed, the static ring seat 2 is sleeved on the stirring shaft 1, the sealing washer 8 is placed in the sealing groove 7, the graphite static ring 3 is sleeved on the stirring shaft 1, the first fluorine rubber ring 6 is placed on the outer surface of the graphite static ring 3, the static ring gland 4 is sleeved on the stirring shaft 1, the static ring gland 4 pushes the graphite static ring 3 by moving the static ring gland 4, the static ring gland 4 and the static ring seat 2 are fixed through the fixing bolt 5, so that the stability of the joint of the stirring shaft 1 is improved, the contact surface of the static ring seat 2 and the graphite static ring 3 is sealed under the action of the sealing washer 8, the graphite static ring 3 and the moving ring 11 are protected under the action of the wear-resistant washer 10, the phenomenon that resonance is generated in the mechanical sealing assembly is avoided, and the abrasion between the graphite static ring 3 and the moving ring 11 is serious, the service life of the screw stirring machine is influenced, when the moving ring 11 is fixed, the spring seat 13 is sleeved on the stirring shaft 1, the spring seat 13 is pushed under the action of the spiral cylindrical spring 17, so that the moving ring 11 and the spring seat 13 cannot be attached, because the nut 15 is in threaded connection with the adjusting screw 14, the nut 15 pushes the spring seat 13 to move by rotating the nut 15, the spring force of the spiral cylindrical spring 17 is fixed and adjusted, the stirring shaft 1 is fixed through the rotating screw 18, the left-right rotation of the spring seat 13 is avoided, through the triangular distribution of the adjusting screw 14, when the three nuts 15 are rotated, the adjusting screw 14 is enabled to uniformly move downwards, the elastic deformation of the spiral cylindrical spring 17 is avoided from pushing, the position deviation of the nut 15 is avoided, and then the torsion change when the nut 15 rotates is reduced, the problem that the nut 15 is abraded greatly is avoided, the service lives of the nut 15 and the adjusting screw 14 are prolonged, and the spiral cylindrical spring 17 is more stable when being adjusted in a spring mode.

In other embodiments, three holes are formed inside the spring seat 13, and the inner diameter of each hole is matched with the cross-sectional diameter of the adjusting screw 14; through setting up the hole to fix a position the installation to adjusting screw 14, so that adjusting screw 14's looks adaptation setting, thereby improve the stable effect when adjusting screw 14 uses.

In other embodiments, the section of the movable ring 11 is arranged in a U shape, and the section of the spring seat 13 is arranged in a T shape; through this design for the spring holder 13 promotes rotating ring 11, when making spring holder 13 extrude spring holder 13, thereby improves the leakproofness that rotating ring 11 and spring holder 13 are connected.

In other embodiments, the sealing groove 7 is annularly arranged, and the width of the sealing groove 7 is matched with that of the sealing washer 8; through seal groove 7 and seal ring 8 to carry out sealing treatment to the contact surface of quiet ring holder 2 with graphite quiet ring 3, avoided the (mixing) shaft 1 junction stability when lower, influence its sealed effect.

In other embodiments, the adjusting screws 14 are distributed in a triangular shape, one side of the spring seat 13 is provided with a groove, and the spiral cylindrical spring 17 is connected with the groove in a clamping manner; through the triangular distribution setting to adjusting screw 14 to improved the stability when rotating nut 15, and under the effect of recess, so that carry out the stable support to spiral cylindrical spring 17, thereby improve spiral cylindrical spring 17's compensatory action.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a mechanical seal is used to multi-spring agitator and cauldron, includes (mixing) shaft (1), its characterized in that: the outer surface of the stirring shaft (1) is sleeved with a static ring seat (2), a graphite static ring (3) is arranged inside the static ring seat (2), first fluorine rubber rings (6) are arranged on two sides of the graphite static ring (3), a static ring gland (4) is arranged on the outer surface of each first fluorine rubber ring (6), a sealing groove (7) is formed in the inner side of the static ring seat (2), a sealing washer (8) is arranged inside the sealing groove (7), one side of each static ring gland (4) is in threaded connection with a plurality of groups of fixing bolts (5), a movable ring (11) is arranged on one side of the graphite static ring (3), mounting grooves (9) are formed in the inner sides of the graphite static ring (3) and the movable ring (11), a wear-resistant washer (10) is arranged inside the mounting grooves (9), a second fluorine rubber ring (12) is arranged on the inner side of the movable ring (11), a plurality of groups of spring grooves (16) are formed in one side of the movable ring (11), the spring seat is characterized in that spiral cylindrical springs (17) are arranged inside the multiple groups of spring grooves (16), three adjusting screws (14) are arranged on one side of the movable ring (11), nuts (15) are connected to the outer surfaces of the adjusting screws (14) in a threaded mode, a spring seat (13) is arranged on one side of the movable ring (11), and multiple groups of screws (18) are connected to the outer surfaces of the spring seat (13) in a threaded mode.

2. The mechanical seal for a multiple spring agitator and tank of claim 1, wherein: three holes are formed in the spring seat (13), and the inner diameter of each hole is matched with the cross section diameter of the adjusting screw rod (14).

3. The mechanical seal for a multiple spring agitator and tank of claim 1, wherein: the section of the movable ring (11) is U-shaped, and the section of the spring seat (13) is T-shaped.

4. The mechanical seal for a multiple spring agitator and tank of claim 1, wherein: the sealing groove (7) is arranged in an annular mode, and the width of the sealing groove (7) is matched with that of the sealing washer (8).

5. The mechanical seal for a multiple spring agitator and tank of claim 1, wherein: the adjusting screw rods (14) are arranged in a triangular distribution mode, one side of the spring seat (13) is provided with a groove, and the spiral cylindrical spring (17) is connected with the groove in a clamping mode.