CN212251140U

CN212251140U - Mechanical sealing device convenient to maintain

Info

Publication number: CN212251140U
Application number: CN202021016003.1U
Authority: CN
Inventors: 高雁
Original assignee: Shijiazhuang Saiao Pump Co ltd
Current assignee: Shijiazhuang Saiao Pump Co ltd
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2020-12-29
Anticipated expiration: 2030-06-05

Abstract

The utility model relates to a mechanical seal technical field just discloses a mechanical seal device convenient to maintenance, including the pivot body, the outer wall movable mounting of pivot body has quiet ring, first mounting groove has been seted up in the left side of quiet ring, the outer wall of quiet ring and the inside movable mounting who is located first mounting groove have first sealing washer, the outer wall of pivot body and the right side movable mounting who is located quiet ring have the rotating ring, the outer wall of pivot body and the right side movable mounting who is located the rotating ring have first fixing base, the second mounting groove has been seted up in the left side of first fixing base. This mechanical seal device convenient to maintenance through unscrewing first adjusting screw and second adjusting screw, first adjusting screw and second adjusting screw drive first stopper and second stopper respectively and break away from spacing groove and the spring on the rotating ring to be convenient for change each spare part of this mechanical seal device, reach the effect of simple and convenient maintenance.

Description

Mechanical sealing device convenient to maintain

Technical Field

The utility model relates to a mechanical seal device technical field specifically is a mechanical seal device convenient to maintenance.

Background

The mechanical seal (mechanical seal) is a device for preventing fluid leakage, which is formed by at least one pair of mechanical seals perpendicular to the end face of a rotating axis, keeping fit and sliding relatively under the action of fluid pressure and the elastic force (or magnetic force) of a compensation mechanism and the cooperation of an auxiliary seal, wherein the elastic force loading mechanism and the auxiliary seal are metal bellows mechanical seals, which are light seals, rubber bellows are used as the auxiliary seal, the elastic force of the rubber bellows is limited, and a spring is generally required to meet the loading elastic force, the mechanical seal is generally referred to as a mechanical seal, which is a shaft seal device of rotary machinery, such as a centrifugal pump, a centrifuge, a reaction kettle, a compressor and other equipment, because a transmission shaft penetrates inside and outside the equipment, a circumferential gap exists between the shaft and the equipment, and a medium in the equipment leaks outwards through the gap, if the pressure in the equipment is lower than the atmospheric pressure, air leaks into the equipment, so a shaft seal device for preventing the leakage is needed, the shaft seal is various, and the mechanical seal has the advantages of small leakage amount, long service life and the like, so the mechanical seal is the most main shaft seal mode in the equipment in the world, and the mechanical seal is called as an end face seal and is defined in the relevant national standard as follows: "means for preventing fluid leakage, which is composed of at least one pair of end faces perpendicular to the rotation axis, and which are kept in fit and relatively slide under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism and the cooperation of the auxiliary seal.

The traditional mechanical sealing device is generally clamped through a hook head of a spring, the spring is taken out from a clamping hole by large force in the mounting and dismounting process, the mounting, dismounting and maintenance are inconvenient, and the like, so that the mechanical sealing device convenient to maintain is provided to solve the problems.

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 device convenient to maintenance possesses advantages such as the maintenance of being convenient for, has solved traditional mechanical seal device and generally has carried out the joint through the eave tile of spring, and its installation dismantles the in-process and needs great dynamics to take out the spring from the card hole, causes the problem that the condition emergence such as installation dismantlement and maintenance are inconvenient.

(II) technical scheme

For the purpose of realizing the maintenance of being convenient for, the utility model provides a following technical scheme: a mechanical sealing device convenient to maintain comprises a rotating shaft body, wherein a static ring is movably arranged on the outer wall of the rotating shaft body, a first mounting groove is formed in the left side of the static ring, a first sealing ring is movably arranged on the outer wall of the static ring and positioned in the first mounting groove, a movable ring is movably arranged on the outer wall of the rotating shaft body and positioned on the right side of the static ring, a first fixing seat is movably arranged on the outer wall of the rotating shaft body and positioned on the right side of the movable ring, a second mounting groove is formed in the left side of the first fixing seat, a second sealing ring is movably arranged in the second mounting groove, a first adjusting screw penetrating through and extending into the first fixing seat is movably arranged on the outer wall of the first fixing seat, a first limiting block is movably arranged at the bottom of the first adjusting screw, and a limiting groove corresponding to the first limiting block is formed in the outer wall, the right side movable mounting of first fixing base has the spring, the outer wall of pivot body and the right side movable mounting who is located the spring have the second fixing base, the top and the equal movable mounting in bottom of first fixing base and second fixing base have second adjusting screw, second adjusting screw's outer wall movable mounting has the second stopper that extends to the spring outer wall.

Preferably, the left side of the stationary ring is provided with two positioning grooves, and the two positioning grooves are symmetrically distributed on the left side of the stationary ring up and down.

Preferably, the first mounting groove and the second mounting groove are both annular grooves, and the first sealing ring and the second sealing ring are both O-shaped rubber rings.

Preferably, the first mounting hole corresponding to the first adjusting screw and the first limiting block is formed in the first fixing seat, and the second mounting hole corresponding to the second adjusting screw and the second limiting block is formed in the first fixing seat and the second fixing seat.

Preferably, the number of the first adjusting screw rods and the first limiting blocks is three, and the first adjusting screw rods and the first limiting blocks are distributed in a circular array in the first fixing seat.

Preferably, the number of the second adjusting screw rods and the second limiting blocks is four, and the second adjusting screw rods and the second limiting blocks are respectively and vertically and symmetrically distributed in the first fixing seat and the second fixing seat.

(III) advantageous effects

Compared with the prior art, the utility model provides a mechanical seal device convenient to maintenance possesses following beneficial effect:

this mechanical seal device convenient to maintenance, it is spacing to first sealing washer and second sealing washer respectively through the first mounting groove on the quiet ring and the second mounting groove on the first fixing base, it is sealed more tight at the pressfitting in-process to make first sealing washer and second sealing washer, reach simple and convenient high-efficient sealed effect, thereby the sealing performance of this mechanical seal device has been improved, through unscrewing first adjusting screw and second adjusting screw, first adjusting screw and second adjusting screw drive first stopper and second stopper respectively and break away from spacing groove and the spring on the rotating ring, thereby be convenient for change each spare part of this mechanical seal device, reach the effect of simple and convenient maintenance, thereby the practicality of this mechanical seal device has been improved.

Drawings

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

fig. 2 is an enlarged view of a position a in the structure diagram 1 of the present invention.

In the figure: the hinge comprises a rotating shaft body 1, a static ring 2, a first mounting groove 3, a first sealing ring 4, a movable ring 5, a first fixing seat 6, a second mounting groove 7, a second sealing ring 8, a first adjusting screw 9, a first limiting block 10, a limiting groove 11, a spring 12, a second fixing seat 13, a second adjusting screw 14 and a second limiting block 15.

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. 1-2, a mechanical sealing device convenient for maintenance comprises a rotating shaft body 1, a stationary ring 2 is movably mounted on the outer wall of the rotating shaft body 1, two positioning grooves are formed in the left side of the stationary ring 2, the two positioning grooves are symmetrically distributed in the left side of the stationary ring 2 from top to bottom, a first mounting groove 3 is formed in the left side of the stationary ring 2, a first sealing ring 4 is movably mounted on the outer wall of the stationary ring 2 and positioned in the first mounting groove 3, a movable ring 5 is movably mounted on the outer wall of the rotating shaft body 1 and positioned in the right side of the stationary ring 2, a first fixing seat 6 is movably mounted on the outer wall of the rotating shaft body 1 and positioned in the right side of the movable ring 5, a second mounting groove 7 is formed in the left side of the first fixing seat 6, a second sealing ring 8 is movably mounted in the inner wall of the second mounting groove 7, the first mounting groove 3 and the second mounting groove 7 are both circular, the outer wall of the first fixing seat 6 is movably provided with a first adjusting screw 9 which penetrates through and extends into the first fixing seat 6, the bottom of the first adjusting screw 9 is movably provided with a first limiting block 10, the number of the first adjusting screw 9 and the first limiting block 10 is three, the three first adjusting screws 9 and the three first limiting blocks 10 are distributed in a circular array in the first fixing seat 6, the outer wall of the movable ring 5 is provided with a limiting groove 11 corresponding to the first limiting block 10, the right side of the first fixing seat 6 is movably provided with a spring 12, the outer wall of the rotating shaft body 1 is movably provided with a second fixing seat 13 positioned on the right side of the spring 12, the tops and bottoms of the first fixing seat 6 and the second fixing seat 13 are movably provided with second adjusting screws 14, the outer wall of the second adjusting screw 14 is movably provided with a second limiting block 15 extending to the outer wall of the spring 12, the first mounting holes corresponding to the first adjusting screw 9 and the first limiting block 10 are arranged in the first fixing seat 6, the first fixing seat 6 and the second fixing seat 13 are respectively provided with second mounting holes corresponding to the second adjusting screw 14 and the second limiting block 15, the number of the second adjusting screw 14 and the second limiting block 15 is four, the four second adjusting screws 14 and the four second limiting blocks 15 are respectively and vertically and symmetrically distributed in the first fixing seat 6 and the second fixing seat 13, the first mounting groove 3 on the stationary ring 2 and the second mounting groove 7 on the first fixing seat 6 are respectively used for limiting the first sealing ring 4 and the second sealing ring 8, so that the first sealing ring 4 and the second sealing ring 8 are tightly sealed in the pressing process, the simple, convenient and efficient sealing effect is achieved, the sealing performance of the mechanical sealing device is improved, by loosening the first adjusting screw 9 and the second adjusting screw 14, the first adjusting screw 9 and the second adjusting screw 14 respectively drive the first limiting block 10 and the second limiting block 15 to be separated from the limiting groove 11 and the spring 12 on the movable ring 5, therefore, each part of the mechanical sealing device is convenient to replace, the effect of simple and convenient maintenance is achieved, and the practicability of the mechanical sealing device is improved.

In summary, in the mechanical sealing device convenient for maintenance, the first mounting groove 3 on the stationary ring 2 and the second mounting groove 7 on the first fixing seat 6 are used for respectively limiting the first sealing ring 4 and the second sealing ring 8, so that the first sealing ring 4 and the second sealing ring 8 are sealed more tightly in the pressing process, and the effect of simple, convenient and efficient sealing is achieved, thereby improving the sealing performance of the mechanical sealing device, by loosening the first adjusting screw 9 and the second adjusting screw 14, the first adjusting screw 9 and the second adjusting screw 14 respectively drive the first limiting block 10 and the second limiting block 15 to be separated from the limiting groove 11 and the spring 12 on the movable ring 5, thereby facilitating the replacement of each part of the mechanical sealing device, achieving the effect of simple and convenient maintenance, thereby improving the practicability of the mechanical sealing device, and solving the problem that the conventional mechanical sealing device is generally clamped by the hook head of the spring 12, the spring 12 is taken out from the clamping hole by large force in the process of mounting and dismounting, so that the problems of inconvenient mounting, dismounting and maintenance and the like are caused.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a mechanical seal device convenient to maintenance, includes pivot body (1), its characterized in that: the outer wall movable mounting of pivot body (1) has quiet ring (2), first mounting groove (3) have been seted up in the left side of quiet ring (2), the inside movable mounting that the outer wall of quiet ring (2) just is located first mounting groove (3) has first sealing washer (4), the outer wall of pivot body (1) just is located the right side movable mounting of quiet ring (2) has rotating ring (5), the outer wall of pivot body (1) just is located the right side movable mounting of rotating ring (5) has first fixing base (6), the left side of first fixing base (6) has been seted up second mounting groove (7), the inside movable mounting of second mounting groove (7) has second sealing washer (8), the outer wall movable mounting of first fixing base (6) has first adjusting screw (9) that runs through and extend to the inside of first fixing base (6), the bottom movable mounting of first adjusting screw (9) has first stopper (10), spacing groove (11) that correspond with first stopper (10) are seted up to the outer wall of rotating ring (5), the right side movable mounting of first fixing base (6) has spring (12), the right side movable mounting that the outer wall of pivot body (1) just is located spring (12) has second fixing base (13), the equal movable mounting in top and the bottom of first fixing base (6) and second fixing base (13) has second adjusting screw (14), the outer wall movable mounting of second adjusting screw (14) has second stopper (15) that extend to spring (12) outer wall.

2. A mechanical seal for ease of maintenance according to claim 1 wherein: the left side of quiet ring (2) is seted up quantity and is two the constant head tank, two the constant head tank is upper and lower symmetric distribution in quiet ring (2) left side.

3. A mechanical seal for ease of maintenance according to claim 1 wherein: the first mounting groove (3) and the second mounting groove (7) are both annular grooves, and the first sealing ring (4) and the second sealing ring (8) are both O-shaped rubber rings.

4. A mechanical seal for ease of maintenance according to claim 1 wherein: the first mounting hole that corresponds with first adjusting screw (9) and first stopper (10) is seted up to the inside of first fixing base (6), the second mounting hole that corresponds with second adjusting screw (14) and second stopper (15) is all seted up to the inside of first fixing base (6) and second fixing base (13).

5. A mechanical seal for ease of maintenance according to claim 1 wherein: the number of the first adjusting screw rods (9) and the first limiting blocks (10) is three, and the first adjusting screw rods (9) and the first limiting blocks (10) are distributed in a circular array in the first fixing seat (6).

6. A mechanical seal for ease of maintenance according to claim 1 wherein: the number of the second adjusting screw rods (14) and the second limiting blocks (15) is four, and the second adjusting screw rods (14) and the second limiting blocks (15) are respectively and vertically symmetrically distributed in the first fixing seat (6) and the second fixing seat (13).