CN211693527U

CN211693527U - Integrated external spring compensation type mechanical sealing device

Info

Publication number: CN211693527U
Application number: CN202020386897.7U
Authority: CN
Inventors: 刘广栋; 苏浩; 严孝东
Original assignee: Qingdao Hangbao Electromechanical Equipment Co ltd
Current assignee: Qingdao Hangbao Electromechanical Equipment Co ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-10-16
Anticipated expiration: 2030-03-24

Abstract

The utility model discloses an integrated external spring compensation formula mechanical seal device, including the axle body, the surface cover of axle body has the axle sleeve, and the surface cover of axle sleeve has a seal box, the top of seal box is inserted and is equipped with the sliding plate, and the first ordinary spring of the inside top fixedly connected with of sliding plate, the bottom fixedly connected with switch of first ordinary spring, the ordinary spring of the inside bottom fixedly connected with second of sliding plate, and the top fixedly connected with block of the ordinary spring of second, the left side surface cover of axle sleeve has the holding ring, and the right side fixed surface of holding ring is connected with compensating spring. The utility model discloses be provided with axle sleeve and compensating spring, compensating spring overlaps outside the axle sleeve, separates with compensating spring when having guaranteed the function of axle body, has delayed long compensating spring's life, through sliding plate seal box, block structure convenient to detach can disassemble the maintenance fast when the maintenance, saves a large amount of time.

Description

Integrated external spring compensation type mechanical sealing device

Technical Field

The utility model relates to a mechanical seal technical field specifically is an integrated external spring compensation formula mechanical seal device.

Background

The mechanical seal is a shaft seal device of a rotating machine, and is a device for preventing fluid leakage, which is formed by at least one pair of end faces perpendicular to a rotating axis, keeping fit and relatively sliding under the action of fluid pressure and elastic force (or magnetic force) of a compensation mechanism and the cooperation of auxiliary seals.

The existing mechanical sealing device is mostly internally arranged, a spring is soaked in a fluid for a long time and is corroded at will, the spring needs to be frequently insisted for replacement, the replacement is troublesome and the cost is increased, the existing mechanical sealing device is mostly fixedly arranged through screws, the installation and the disassembly are not easy in the maintenance process, time is consumed, and therefore the problem is solved by an integrated external spring compensation type mechanical sealing device urgently needed.

Disclosure of Invention

An object of the utility model is to provide an integrated external spring compensation formula mechanical seal device to the built-in difficult problem of dismantling with the maintenance of the spring that proposes in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an integrated external spring compensation type mechanical sealing device comprises a shaft body, wherein a shaft sleeve is sleeved on the surface of the shaft body, and the surface of the shaft sleeve is sleeved with a sealing box, the top end of the sealing box is inserted with a sliding plate, the top end inside the sliding plate is fixedly connected with a first common spring, the bottom end of the first common spring is fixedly connected with a switch, the bottom end inside the sliding plate is fixedly connected with a second common spring, the top end of the second common spring is fixedly connected with a clamping block, the left side surface of the shaft sleeve is sleeved with a positioning ring, and the right side surface of the positioning ring is fixedly connected with a compensation spring, the right side surface of the compensation spring is fixedly connected with a compensation spring, and the right side surface of the pushing ring is sleeved with a movable ring, the interior of the movable ring is fixedly connected with a movable ring sealing ring, the right side surface cover of rotating ring has quiet ring, and the inside fixedly connected with quiet ring seal circle of quiet ring.

Preferably, the shaft sleeve is of a cylindrical structure, and the radius of the shaft sleeve is smaller than that of the compensation spring.

Preferably, the seal box is of a rectangular structure, and the top end surface of the seal box is provided with a triangular buckle.

Preferably, the stationary ring sealing ring is of a circular ring structure, and a gap is formed in the surface of the stationary ring sealing ring.

Preferably, the switch is of a rectangular structure, and the switch and the sliding plate form a sliding structure.

Preferably, the bottom end of the left side of the clamping block is of a triangular structure, and the clamping block and the sealing box are of a sliding structure on the left side.

Compared with the prior art, the beneficial effects of the utility model are that: this integrated external spring compensation formula mechanical seal device is provided with axle sleeve and compensating spring, places the axle sleeve in the axle body in, and the compensating spring cover is outside the axle sleeve, separates with compensating spring when having guaranteed the function of axle body, postpones long compensating spring's life, through sliding plate seal box, the maintenance can be disassembled fast to the snap-on structure convenient to detach when the maintenance, saves a large amount of time.

(1) The device is provided with axle sleeve and compensating spring, places the axle sleeve in the axle body in, and the compensating spring cover is outside the axle sleeve, separates with compensating spring when having guaranteed the operation of axle body, has postponed compensating spring's life.

(2) The device seals the seal box through the sliding plate, and the snap-on structure is convenient to detach, can disassemble the maintenance fast when the maintenance, saves a large amount of time.

Drawings

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

FIG. 2 is a schematic top view of the structure of the present invention;

FIG. 3 is a schematic top sectional view of the structure of the present invention;

fig. 4 is a schematic front sectional view of the engaging block and the switch structure of the present invention.

In the figure: 1. a shaft body; 2. a shaft sleeve; 3. a sealing box; 4. a positioning ring; 5. a compensation spring; 6. a push ring; 7. a moving ring sealing ring; 8. a stationary ring; 9. a stationary ring seal ring; 10. a moving ring; 11. a sliding plate; 12. a switch; 13. a first common spring; 14. a second common spring; 15. and a clamping block.

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.

Referring to fig. 1-4, the present invention provides an embodiment: an integrated external spring compensation type mechanical sealing device comprises a shaft body 1, wherein a shaft sleeve 2 is sleeved on the surface of the shaft body 1, a sealing box 3 is sleeved on the surface of the shaft sleeve 2, the shaft sleeve 2 is of a cylindrical structure, the radius of the shaft sleeve 2 is smaller than that of a compensation spring 5, the compensation spring 5 is sleeved on the surface of the shaft sleeve 2 and is independent from the shaft sleeve 2, a sliding plate 11 is inserted at the top end of the sealing box 3, a first common spring 13 is fixedly connected to the inner top end of the sliding plate 11, the sealing box 3 is of a rectangular structure, a triangular buckle is arranged on the surface of the top end of the sealing box 3, the buckle at the top end of the sealing box 3 is just buckled with a clamping block 15, the clamping block 15 can be fixed, the clamping block 15 is prevented from sliding off, a switch 12 is fixedly connected to the bottom end of the first common spring 13, a second common spring 14 is fixedly connected to the inner bottom end of, the left side bottom of block 15 is the triangle-shaped structure, and

block

15 and 3 left side slidingtype structures of seal box, sliding plate 11 is fixed with 3 block of seal box after 15 block, it is more convenient to open and close, the left surface cover of axle sleeve 2 has holding ring 4, and the right side fixed surface of holding ring 4 is connected with compensating spring 5, compensating spring 5's right side fixed surface is connected with compensating spring 5, and the right side surface cover of driving ring 6 has rotating ring 10, the inside fixedly connected with rotating ring sealing washer 7 of rotating ring 10, the right side surface cover of rotating ring 10 has quiet ring 8, and the inside fixedly connected with quiet ring sealing washer 9 of quiet ring 8, quiet ring sealing washer 9 is the ring shape structure, and the breach has been seted up on the surface of quiet ring sealing washer 9, quiet ring sealing washer 9 blocks at quiet ring 8 and rotating ring 10 kneck, the leakproofness has been guaranteed, prevent leakage.

The working principle is as follows: during the use, more figure 1, the notch has been seted up on quiet ring 8 left side, and the quiet ring seal circle 9 of fixedly connected with in the notch, the tang has been seted up to rotating ring 10 right side, rotating ring 10 inlays to the cover with quiet ring 8, and quiet ring seal circle 9 blocks up and guarantees the leakproofness in the gap, the notch has been seted up on rotating ring 10 left side, and fixedly connected with rotating ring seal circle 7 in the notch, push ring 6 becomes T shape and inserts in the notch of establishing at rotating ring 10, conflict rotating ring 10, holding ring 4 and push ring 6 are being connected to 5 both ends of compensating spring, make it become a whole and use, and compensating spring 5 is external to have avoided the fluid corrosion in the axle body 1, very big extension life.

According to the attached drawing 4, the sliding plate 11 is inserted and clamped at the top end of the sealing box 3, the switch 12 is pressed, the switch 12 drives the first common spring 13 to press the top end of the right side of the clamping block 15 downwards, the bottom end of the right side of the clamping block 15 presses the second common spring 14, the top end of the left side of the clamping block 15 bounces to be separated from the sealing box 3, the sliding plate 11 can slide out to open the rectangular sealing box 3 for disassembly and maintenance, and the clamping block 15 and the switch 12 are restored to be original under the action of the second common spring 14 and the first common spring 13.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an integrated external spring compensation formula mechanical seal device, includes axle body (1), its characterized in that: the shaft comprises a shaft body (1), a shaft sleeve (2) is sleeved on the surface of the shaft body (1), a sealing box (3) is sleeved on the surface of the shaft sleeve (2), a sliding plate (11) is inserted at the top end of the sealing box (3), a first common spring (13) is fixedly connected to the top end of the sliding plate (11), a switch (12) is fixedly connected to the bottom end of the first common spring (13), a second common spring (14) is fixedly connected to the bottom end of the sliding plate (11), a clamping block (15) is fixedly connected to the top end of the second common spring (14), a positioning ring (4) is sleeved on the left side surface of the shaft sleeve (2), a compensation spring (5) is fixedly connected to the right side surface of the positioning ring (4), a compensation spring (5) is fixedly connected to the right side surface of the compensation spring (5), a moving ring (10) is sleeved on the right side surface of the pushing ring (6), and a moving ring sealing, the right side surface cover of rotating ring (10) has quiet ring (8), and the inside fixedly connected with quiet ring seal circle (9) of quiet ring (8).

2. The integrated external spring compensating mechanical seal device of claim 1, wherein: the shaft sleeve (2) is of a cylindrical structure, and the radius of the shaft sleeve (2) is smaller than that of the compensation spring (5).

3. The integrated external spring compensating mechanical seal device of claim 1, wherein: the sealing box (3) is of a rectangular structure, and a triangular buckle is arranged on the top end surface of the sealing box (3).

4. The integrated external spring compensating mechanical seal device of claim 1, wherein: the static ring sealing ring (9) is of a circular ring structure, and a gap is formed in the surface of the static ring sealing ring (9).

5. The integrated external spring compensating mechanical seal device of claim 1, wherein: the switch (12) is of a rectangular structure, and the switch (12) and the sliding plate (11) form a sliding structure.

6. The integrated external spring compensating mechanical seal device of claim 1, wherein: the left bottom end of the clamping block (15) is of a triangular structure, and the clamping block (15) and the sealing box (3) are of a left sliding structure.