CN213541291U

CN213541291U - Mechanical sealing mechanism

Info

Publication number: CN213541291U
Application number: CN202022255423.1U
Authority: CN
Inventors: 李学辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-06-25
Anticipated expiration: 2030-10-12

Abstract

The utility model discloses a mechanical seal mechanism, establish the epaxial axle sleeve of pivot including the fixed cover, the cover is equipped with the gland on the axle sleeve, the annular mounting groove has been seted up to one side of gland, fixed mounting has the soft ring of nanometer in the annular mounting groove, it is equipped with the rotating ring bistrique to rotate the cover on the axle sleeve, one side of rotating ring bistrique and one side rotation sealing contact of the soft ring of nanometer, one side of gland is equipped with first O and makes the circle, the cover is equipped with compensating ring and spring holder on the axle sleeve, one side that the rotating ring bistrique was kept away from to the compensating ring is seted up and the fixed slot, one. The utility model relates to a rationally, the practicality is good, has improved mechanical seal's sealing performance, and compensation ring and rotating ring bistrique have certain automatic compensation ability when producing wearing and tearing, have good sealed effect, and easy to assemble and dismantlement are convenient for dismantle the change to second O order circle and the soft ring of nanometer under the condition of not disassembling the pump body in addition, and the simple operation improves work efficiency.

Description

Mechanical sealing mechanism

Technical Field

The utility model relates to a mechanical seal technical field specifically is a mechanical seal mechanism.

Background

The mechanical seal is a seal device for rotating machinery, and is generally composed of a moving ring, a static ring and a compression spring.

However, in the prior art, when a common mechanical seal is used, the sealing effect is poor, the automatic compensation capability for a moving ring is poor, and in the long-time use process, under the condition of water leakage, the static ring and an O-ring are not convenient to disassemble and replace, and the operation process is complicated.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a mechanical seal mechanism has solved current mechanical seal when using, and its sealed effect is not good, and is poor to the automatic compensation ability of rotating ring, is not convenient for dismantle the change to quiet ring sum O ring, the loaded down with trivial details problem of operation process.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a mechanical sealing mechanism comprises a shaft sleeve fixedly sleeved on a rotating shaft, a gland is sleeved on the shaft sleeve, an annular mounting groove is formed in one side of the gland, a nanometer soft ring is fixedly mounted in the annular mounting groove, a rotating ring grinding head is sleeved on the shaft sleeve in a rotating mode, one side of the rotating ring grinding head is in rotating sealing contact with one side of the nanometer soft ring, a first O-shaped ring is arranged on one side of the gland, a compensating ring and a spring seat are sleeved on the shaft sleeve, one side, away from the rotating ring grinding head, of the compensating ring is provided with a fixed groove, one side, close to the compensating ring, of the spring seat is fixedly mounted with a spring sleeved on the shaft sleeve, one end, away from the spring seat, of the spring extends into the fixed groove and is abutted against the inner wall of one side of the fixed groove, a first annular groove is formed in the inner annular wall of the compensating ring, a second O-shaped ring, a third O ring is fixedly arranged in the second annular groove, and thread grooves are formed in the top and the bottom of the shaft sleeve.

Preferably, the connecting groove has all been seted up to the top and the bottom of spring holder, has all seted up the connecting hole on the one side inner wall that two connecting grooves are close to each other, and equal movable mounting has set screw in two connecting grooves, and corresponding connecting hole is run through respectively to one side that two set screw are close to each other.

Preferably, the two connecting holes are respectively communicated with corresponding thread grooves, and one ends of the two fixing screws, which are close to each other, are respectively installed in the corresponding thread grooves in a threaded manner.

Preferably, an annular positioning groove is formed in one side of the gland, a first O-shaped ring is fixedly mounted in the annular positioning groove, and one side of the first O-shaped ring extends out of the annular groove.

Preferably, one side of the compensation ring, which is far away from the spring seat, is in sealing contact with one side of the movable ring grinding head, which is far away from the nano soft ring.

Preferably, the number of the second annular grooves is two, the number of the third O-ring is two, and the two third O-rings are respectively installed in the corresponding second annular grooves.

(III) advantageous effects

The utility model provides a mechanical sealing mechanism. The method has the following beneficial effects:

(1) this mechanical seal mechanism carries out sealing contact through rotating ring bistrique and compensating ring when rotating with the soft ring of nanometer, makes the circle through setting up second O, can effectively seal when rotating compensating ring, makes the circle through setting up two third O, can seal when the shaft sleeve rotates to reach good sealed effect.

(2) This mechanical seal mechanism, under the spring action through utilizing the spring, promote the compensating ring, rotating ring bistrique and second O make the circle carry out the microslip along the direction of axle sleeve, can be when compensating ring and rotating ring bistrique produce wearing and tearing, certain automatic compensation ability has, make the position leakproofness that rotating ring bistrique and nanometer soft ring contacted good, through dismantling two set screw down, be convenient for dismantle the spring holder, spring rotating ring bistrique and nanometer soft ring, conveniently change second O makes the circle, through with the gland along the axial to the left side put aside, alright dismantle the change to the nanometer soft ring, thereby can change under the condition that does not need to disassemble the pump body, time saving and labor saving, the operation is convenient, and the work efficiency is improved.

Drawings

FIG. 1 is a schematic sectional view of the main view of the present invention;

fig. 2 is an enlarged schematic view of a portion a of fig. 1.

In the figure: 1. a shaft sleeve; 2. a gland; 3. an annular mounting groove; 4. a moving ring grinding head; 5. a first O order ring; 6. a compensation ring; 7. a spring seat; 8. fixing grooves; 9. a spring; 10. a first annular groove; 11. a second O ring; 12. a second annular groove; 13. a third O ring; 14. connecting grooves; 15. connecting holes; 16. a set screw; 17. a thread groove; 18. a nanometer soft ring.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-2, the utility model provides a technical solution: a mechanical sealing mechanism comprises a shaft sleeve 1 fixedly sleeved on a rotating shaft, a gland 2 is sleeved on the shaft sleeve 1, an annular mounting groove 3 is formed in one side of the gland 2, a nanometer soft ring 18 is fixedly installed in the annular mounting groove 3, a rotating ring grinding head 4 is sleeved on the shaft sleeve 1 in a rotating manner, one side of the rotating ring grinding head 4 is in rotating sealing contact with one side of the nanometer soft ring 18, a first O order ring 5 is arranged on one side of the gland 2, a compensating ring 6 and a spring seat 7 are sleeved on the shaft sleeve 1, one side of the compensating ring 6, far away from the rotating ring grinding head 4, is provided with a fixing groove 8, one side of the spring seat 7, close to the compensating ring 6, is fixedly provided with a spring 9 sleeved on the shaft sleeve 1, one end of the spring 9, far away from the spring seat 7, extends into the fixing groove 8 and is abutted against the inner wall of one side of the fixing groove 8, a first, the second O makes circle 11 and the outer wall of axle sleeve 1 contact, has seted up second annular groove 12 on the inner annular wall of axle sleeve 1, and fixed mounting has third O to make circle 13 in second annular groove 12, and thread groove 17 has all been seted up to the top and the bottom of axle sleeve 1.

Connecting grooves 14 have all been seted up at the top and the bottom of spring holder 7, connecting hole 15 has all been seted up on the one side inner wall that two connecting grooves 14 are close to each other, equal movable mounting has set screw 16 in two connecting grooves 14, corresponding connecting hole 15 is run through respectively to one side that two set screw 16 are close to each other, two connecting hole 15 are linked together with corresponding thread groove 17 respectively, the one end that two set screw 16 are close to each other is threaded mounting in corresponding thread groove 17 respectively, annular positioning groove has been seted up to one side of gland 2, fixed mounting has first O to make circle 5 in the annular positioning groove, first O makes one side of circle 5 extend outside the annular groove, one side that spring holder 7 was kept away from to compensating ring 6 and one side sealing contact that nanometer soft ring 18 was kept away from to rotating ring bistrique 4, the quantity of second annular groove 12 is two, the quantity that third O made circle 13 is two, two third O make circle 13 install respectively in corresponding second annular.

When the nanometer soft ring grinding head is used, the nanometer soft ring 18 is used as a static ring, when the rotating shaft rotates, the rotating shaft can drive the shaft sleeve 1, the moving ring grinding head 4, the compensation ring 6, the spring seat 7 and the spring 9 to rotate, the moving ring grinding head 4 and the compensation ring 6 are in sealing contact with the nanometer soft ring 18 when the rotating shaft rotates, the compensation ring 6 can be effectively sealed when the compensation ring 6 rotates by arranging the second O-shaped ring 11, the shaft sleeve 1 can be sealed when the rotating shaft is rotated by arranging the two third O-shaped rings 13, so that a good sealing effect is achieved, when the moving ring grinding head 4 and the compensation ring 6 are worn in the rotating process, the compensation ring 6, the moving ring grinding head 4 and the second O-shaped ring 11 are pushed to slightly slide along the direction of the shaft sleeve 1 by utilizing the elastic force of the spring 9, certain automatic compensation capability is achieved, the sealing performance of the contact position of the moving ring grinding head 4 and the nanometer soft ring 18 is good, be convenient for dismantle spring holder 7, spring 9 rotating ring bistrique 4 and soft ring 6 of nanometer, conveniently change second O makes circle 11, and convenient operation, when the soft ring 18 of nanometer produces wearing and tearing and need to be changed, through moving away gland 2 to the left side along the axial, alright dismantle the change to the soft ring 18 of nanometer to can change under the condition that need not disassemble the pump body, labour saving and time saving, the simple operation improves work efficiency, and the content of not making detailed description in this description all belongs to the prior art that technical personnel publicly know in this field simultaneously.

In conclusion, the mechanical sealing mechanism can effectively seal the compensation ring 6 when the movable ring grinding head 4 and the compensation ring 6 rotate and seal the shaft sleeve 1 when the shaft sleeve 1 rotates by arranging the second O-shaped ring 11 and arranging the two third O-shaped rings 13, thereby achieving good sealing effect, the compensation ring 6, the movable ring grinding head 4 and the second O-shaped ring 11 are pushed to slightly slide along the direction of the shaft sleeve 1 by utilizing the elastic force of the spring 9, certain automatic compensation capability can be realized when the compensation ring 6 and the movable ring grinding head 4 are worn, the contact position of the movable ring grinding head 4 and the nanometer soft ring 18 has good sealing performance, the spring seat 7, the movable ring grinding head 4 and the nanometer soft ring 6 of the spring 9 can be conveniently disassembled by disassembling the two fixing screws 16, the second O-shaped ring 11 can be conveniently replaced, through puting aside gland 2 to the left side along the axial, alright dismantle the change to nanometer soft ring 18 to can change under the condition that need not disassemble the pump body, labour saving and time saving, the simple operation improves work efficiency, the utility model relates to a rationally, the practicality is good, has improved mechanical seal's sealing performance, has certain automatic compensation ability when compensating ring 6 and rotating ring bistrique 4 produce wearing and tearing, has good sealed effect, easy to assemble and dismantlement moreover, is convenient for dismantle the change to second O order circle 11 and nanometer soft ring 18 under the condition of not disassembling the pump body, and the simple operation improves work efficiency.

Claims

1. The utility model provides a mechanical seal mechanism, includes that the fixed cover establishes in epaxial axle sleeve (1) of pivot, its characterized in that: the sealing device is characterized in that a gland (2) is sleeved on a shaft sleeve (1), an annular mounting groove (3) is formed in one side of the gland (2), a nanometer soft ring (18) is fixedly mounted in the annular mounting groove (3), a rotating ring grinding head (4) is sleeved on the shaft sleeve (1) in a rotating manner, one side of the rotating ring grinding head (4) is in rotating sealing contact with one side of the nanometer soft ring (18), a first O order ring (5) is arranged on one side of the gland (2), a compensation ring (6) and a spring seat (7) are sleeved on the shaft sleeve (1), one side, far away from the rotating ring grinding head (4), of the compensation ring (6) is provided with a fixed groove (8), a spring (9) sleeved on the shaft sleeve (1) is fixedly mounted on one side, close to the compensation ring (6), of the spring seat (7), one end, far away from the spring seat (7), of the spring, seted up first annular groove (10) on the inner annular wall of compensating ring (6), fixed mounting has the second O to make circle (11) in first annular groove (10), and the second O makes circle (11) and the outer wall of axle sleeve (1) contact, has seted up second annular groove (12) on the inner annular wall of axle sleeve (1), and fixed mounting has the third O to make circle (13) in second annular groove (12), and thread groove (17) have all been seted up to the top and the bottom of axle sleeve (1).

2. A mechanical seal according to claim 1, wherein: connecting groove (14) have all been seted up to the top and the bottom of spring holder (7), have all seted up connecting hole (15) on the one side inner wall that two connecting grooves (14) are close to each other, and equal movable mounting has set screw (16) in two connecting grooves (14), and corresponding connecting hole (15) are run through respectively to one side that two set screw (16) are close to each other.

3. A mechanical seal according to claim 2, wherein: the two connecting holes (15) are respectively communicated with corresponding thread grooves (17), and one ends of the two fixing screws (16) close to each other are respectively installed in the corresponding thread grooves (17) in a threaded manner.

4. A mechanical seal according to claim 1, wherein: annular positioning groove has been seted up to one side of gland (2), and annular positioning groove internal fixed mounting has first O to make circle (5), and one side of first O makes circle (5) extends outside the annular groove.

5. A mechanical seal according to claim 1, wherein: one side of the compensation ring (6) far away from the spring seat (7) is in sealing contact with one side of the movable ring grinding head (4) far away from the nanometer soft ring (18).

6. A mechanical seal according to claim 1, wherein: the number of the second annular grooves (12) is two, the number of the third O order rings (13) is two, and the two third O order rings (13) are respectively arranged in the corresponding second annular grooves (12).