CN218845122U

CN218845122U - Corrosion-resistant mechanical sealing element

Info

Publication number: CN218845122U
Application number: CN202223533089.7U
Authority: CN
Inventors: 刘援朝
Original assignee: Xiangyang Hengyitong Seals Co ltd
Current assignee: Xiangyang Hengyitong Seals Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-04-11
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses a corrosion-resistant mechanical sealing element, which relates to the technical field of mechanical sealing elements and comprises a mechanical sealing shell and a movable ring seat; a machine seal shell: the movable ring seat is internally provided with a static ring, a spring is arranged inside the movable ring seat, a fixed piece is clamped at the right side end of the spring, the left side surface of the static ring is attached to the right side surface of the movable ring, the right side surface of the fixed piece is clamped with the left side surface of the movable ring, mounting bars are arranged on two sides of the middle part of the movable ring seat, a shaft sleeve is arranged in the middle of the movable ring seat, and the mounting bars are clamped with a mounting groove at the right end of the outer side surface of the shaft sleeve; the utility model discloses mechanical parts surface coating corrosion resistant coating has been taken to effectual improvement part corrosion resistance, in order to prevent that the part from receiving the subsequent use of the rust influence of corroding, the anti-oxidant coating cooperation wearing layer on quick-witted seal shell surface then can prevent to oxidize and rust and wearing and tearing simultaneously, this corrosion-resistant mechanical seal spare, easy dismounting, the security is high, and the leakproofness is good.

Description

Corrosion-resistant mechanical sealing element

Technical Field

The utility model relates to a mechanical seal technical field specifically is a corrosion-resistant mechanical seal spare.

Background

The mechanical sealing element belongs to one of precise mechanical basic elements with complex structures, and is a key part of equipment such as various pumps, reaction synthesis kettles, turbine compressors, submersible motors and the like, the sealing performance and the service life of the mechanical sealing element depend on a plurality of factors, the main components of the mechanical sealing element comprise a static ring and a rotating ring, the static ring is usually and fixedly arranged on a gland or other parts of a mechanical body, the rotating ring is arranged on a transmission shaft of the machine, the static ring does not rotate, and the rotating ring and the shaft rotate together; the mechanical seal is realized by keeping the end surfaces of the static ring and the dynamic ring which are vertical to the shaft and slide relatively under the action of fluid pressure and the elasticity of the compensation mechanism to be attached and matched with auxiliary seal to achieve leakage resistance;

the corrosion-resistant pump mechanical sealing element disclosed in the patent with the publication number of CN 216666498U in the prior art comprises a static ring and a movable ring, wherein the static ring and the movable ring are coaxially arranged, the outer wall of the static ring is provided with a plurality of annular sliding grooves which are arranged at intervals, a heat dissipation ring is slidably connected in each sliding groove, the outer wall of the static ring is sleeved with a transmission ring, a first spring is fixedly connected between the transmission ring and the movable ring, the outer wall of the static ring is sleeved with a fixed stop ring, and a moving mechanism for controlling the heat dissipation ring to reciprocate in the sliding grooves is arranged between the stop ring and the transmission ring;

most mechanical seal lacks the fixed to the axle sleeve when using for the problem of mistake pivoted often appears when the inside cup jointing bearing of axle sleeve, thereby influences the installation, and because the axle sleeve exposes externally, can lead to inside mechanical connection structure to appear warping when the axle sleeve receives the impact, and then influences sealed effect, for this reason, we provide a corrosion-resistant mechanical seal.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a corrosion-resistant mechanical seal spare, easy dismounting, the security is high, and the leakproofness is good, can effectively solve the problem among the background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: a corrosion-resistant mechanical sealing element comprises a mechanical sealing shell and a movable ring seat;

a machine seal shell: the movable ring seat is internally provided with a static ring, a spring is arranged inside the movable ring seat, a fixed piece is clamped at the right side end of the spring, the left side surface of the static ring is attached to the right side surface of the movable ring, the right side surface of the fixed piece is clamped with the left side surface of the movable ring, mounting bars are arranged on two sides of the middle part of the movable ring seat, a shaft sleeve is arranged in the middle of the movable ring seat, and the mounting bars are clamped with a mounting groove at the right end of the outer side surface of the shaft sleeve;

wherein: the mechanical seal shell is characterized by further comprising a connecting flange, and the connecting flange is fixed at the left end of the mechanical seal shell.

Install the spring inside the rotating ring seat to use the fixed disk to carry out the lock solid to the spring, insert the inside of rotating ring seat and carry on spacingly to it through the mounting bar to the axle sleeve, put the rotating ring seat at last inside messenger's quiet ring and the laminating of rotating ring mutually of quick-witted seal shell, mechanical seal then can be realized to the cooperation spring.

Further, still include protective cover and bolt, the left surface at flange is installed to the protective cover, install in the through-hole of protective cover side with flange surface screw threaded connection's bolt, fix protective cover and flange through the bolt to prevent that external object from striking the axle sleeve and causing its inside mechanical structure not hard up, also can exert an influence to sealed effect when influencing follow-up dismouting.

Further, still include standing groove and sealing washer, the standing groove is seted up at flange's left surface, the internally mounted of standing groove has the sealing washer, and the inside sealing washer of standing groove can increase the fastness of fixing between protective cover and the flange to it is not hard up to prevent that the junction from appearing.

Furthermore, the bearing fixing device also comprises two locking holes, a connecting plate and a screw rod, wherein the two connecting plates are correspondingly arranged on the left side surface of the protective cover in the front-back direction, the screw hole in the middle of the connecting plate is internally connected with the screw rod, the locking holes are arranged on the outer side surface of the shaft sleeve, the screw rod is clamped into the locking holes by rotating the screw rod, so that the screw rod is prevented from rotating mistakenly when the bearing is installed in the shaft sleeve,

further, still include identification frame and data plate, the top at the protective cover left surface is fixed to the identification frame, peg graft in the inside of identification frame and have the data plate, the inside data plate of identification frame is convenient to be taken notes the information of sealing member to look over when making things convenient for personnel to maintain.

Further, still include rotating ring sealing ring and quiet ring seal ring, rotating ring sealing ring joint is in the inside of rotating ring, quiet ring seal ring cup joints the lateral surface at quiet ring, and the gap that the rotating ring sealing ring cooperation quiet ring seal ring can reduce the junction to prevent that the gap from influencing holistic leakproofness.

Further, still include anti-oxidation coating and wearing layer, the even coating of anti-oxidation coating is at the lateral surface of machine seal shell, anti-oxidation coating's lateral surface bonds and has the wearing layer, and anti-oxidation coating can prevent that machine seal shell surface and air direct contact from causing rusty, and the wearing layer can resist anti-oxidation coating and play the effect of protection simultaneously.

Further, still include spacing post, spacing post has two and front and back to correspond to fix the right flank in the machine seal shell inside, spacing post and the spacing groove looks joint of quiet ring right flank, spacing post card advance the spacing inslot portion of quiet ring right flank to lock the position of quiet ring.

Compared with the prior art, the beneficial effects of the utility model are that: the corrosion-resistant mechanical sealing element has the following advantages:

1. the utility model adopts the corrosion-resistant coating to coat the surface of the mechanical part, thereby effectively improving the corrosion resistance of the part to prevent the part from being corroded and rusted to influence the subsequent use, and simultaneously, the oxidation-resistant coating on the surface of the mechanical seal shell can prevent oxidation rusting and abrasion by matching with the wear-resistant layer;

2. the protective cover is fixed through the bolt, so that the phenomenon that the internal mechanical structure of the protective cover is loosened due to the fact that an external object impacts the shaft sleeve is prevented, and the subsequent disassembly and assembly are influenced, and meanwhile, the sealing effect is also influenced;

3. the utility model discloses a rotating the screw rod and making its card advance the inside in locking hole and fix, prevent its mistake when the bearing installation is carried out to axle sleeve inside like this and rotate, also can prevent to exert oneself when dismantling simultaneously and cause droing of axle sleeve excessively.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the mechanical seal housing of the present invention;

fig. 3 is a schematic view of the structure of the mechanical seal housing of the present invention.

In the figure: 1 mechanical seal shell, 2 flange, 3 quiet ring, 4 rotating rings, 5 rotating ring seats, 6 springs, 7 stationary blades, 8 axle sleeves, 9 mounting bars, 10 protective covers, 11 bolts, 12 standing grooves, 13 sealing rings, 14 locking holes, 15 connecting plates, 16 screw rods, 17 identification frames, 18 nameplates, 19 rotating ring sealing rings, 20 quiet ring sealing rings, 21 anti-oxidation coatings, 22 wearing layers and 23 spacing posts.

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. 1-3, the present embodiment provides a technical solution: a corrosion-resistant mechanical sealing element comprises a mechanical sealing shell 1 and a movable ring seat 5;

mechanical seal shell 1: a stationary ring 3 is arranged inside the movable ring seat 5, a spring 6 is arranged inside the movable ring seat 5, a fixed piece 7 is clamped at the right side end of the spring 6, the left side surface of the stationary ring 3 is attached to the right side surface of the movable ring 4, the right side surface of the fixed piece 7 is clamped with the left side surface of the movable ring 4, mounting bars 9 are arranged on two sides of the middle part of the movable ring seat 5, a shaft sleeve 8 is arranged in the middle part of the movable ring seat 5, and the mounting bars 9 are clamped with a mounting groove at the right end of the outer side surface of the shaft sleeve 8;

wherein: the mechanical seal structure further comprises a connecting flange 2, the connecting flange 2 is fixed at the left side end of the mechanical seal shell 1, a spring 6 is installed inside the movable ring seat 5, a fixed disc 7 is used for locking the spring 6, a shaft sleeve 8 is inserted into the movable ring seat 5 and is limited through an installation strip 9, finally the movable ring seat 5 is placed inside the mechanical seal shell 1 to enable the static ring 3 to be attached to the movable ring 4, mechanical seal can be achieved by matching with the spring 6, the mechanical seal structure further comprises a protective cover 10 and a bolt 11, the protective cover 10 is installed on the left side face of the connecting flange 2, the bolt 11 in threaded connection with a screw hole in the surface of the connecting flange 2 is installed in a through hole in the side face of the protective cover 10, the protective cover 10 and the connecting flange 2 are fixed through the bolt 11, accordingly, external objects are prevented from impacting the shaft sleeve 8 to cause internal mechanical structure loosening, the subsequent dismounting and mounting and dismounting are prevented from affecting the sealing effect, and further comprises a placing groove 12 and a sealing ring 13, the bearing mounting structure comprises a placing groove 12 arranged on the left side face of a connecting flange 2, a sealing ring 13 arranged inside the placing groove 12, two sealing rings 13 arranged inside the placing groove 12 and capable of increasing firmness of fixing between a protective cover 10 and the connecting flange 2 so as to prevent loosening of a joint, locking holes 14, a connecting plate 15 and screw rods 16, wherein the two connecting plates 15 are correspondingly arranged on the left side face of the protective cover 10 in the front-back direction, the screw holes 16 are connected with screw rods 16 in threaded manner in the middle of the connecting plate 15, the locking holes 14 are arranged on the outer side face of a shaft sleeve 8, the screw rods 16 are clamped into the locking holes 14 by rotating the screw rods 16 so as to prevent mistaken rotation of the shaft sleeve 8 during bearing mounting, an identification frame 17 and a nameplate 18 are further included, the identification frame 17 is fixed at the top end of the left side face of the protective cover 10, a nameplate 18 is inserted into the identification frame 17, the nameplate 18 inside the identification frame 17 is convenient for recording information of a sealing element, thereby look over when making things convenient for personnel to maintain, still include rotating ring sealing ring 19 and quiet ring sealing ring 20, rotating ring sealing ring 19 joint is in the inside of rotating ring 4, quiet ring sealing ring 20 cup joints the lateral surface at quiet ring 3, rotating ring sealing ring 19 cooperation quiet ring sealing ring 20 can reduce the gap of junction, thereby prevent that the gap from influencing holistic leakproofness, still include oxidation-resistant coating 21 and wearing layer 22, the even coating of oxidation-resistant coating 21 is at the lateral surface of machine seal shell 1, oxidation-resistant coating 21's lateral surface bonds and has wearing layer 22, oxidation-resistant coating 21 can prevent that machine seal shell 1 surface and air direct contact from causing rustting, wearing layer 22 can play the effect of protection to oxidation-resistant coating 21 simultaneously, still include spacing post 23, spacing post 23 has two and front and back to correspond and fix the right flank at machine seal shell 1 inside right flank, spacing post 23 and the spacing groove looks joint of quiet ring 3 right flank, spacing post 23 blocks into the spacing inslot portion of quiet ring 3 right flank and locks the position of quiet ring 3.

The utility model provides a pair of corrosion-resistant mechanical seal's theory of operation as follows: firstly, the movable ring 4 is installed inside the mechanical seal shell 1, the limiting column 23 on the right side inside the mechanical seal shell 1 is clamped into the limiting groove on the right side of the fixed ring 3 to lock the position of the fixed ring 3, then the spring 6 is placed inside the movable ring seat 5 and is fixed by the fixed plate 7, then the movable ring 4 is installed on the right side of the fixed plate 7, the movable ring seat 5 is placed inside the mechanical seal shell 1, the movable ring sealing ring 19 inside the movable ring 4 and the fixed ring sealing ring 20 on the outer side face of the fixed ring 3 can reduce the gap of the connecting part, so that the gap is prevented from influencing the whole sealing performance, then the protective cover 10 is fixed on the left side of the connecting flange 2 through the bolt 11, the protective cover 10 prevents the external object from impacting the shaft sleeve 8 to cause the loosening of the internal mechanical structure, the subsequent dismounting and mounting and dismounting are influenced, the screw 16 is rotated to be clamped into the locking hole 14, so that the error rotation of the bearing installation is prevented when the shaft sleeve 8 is installed, finally, the surfaces of the parts inside the mechanical seal shell are coated with the anti-corrosion coating, the anti-corrosion and the anti-rusting coating can be effectively improved, and the anti-rusting coating can be used simultaneously, and the anti-rusting coating can be prevented.

The above-mentioned only be the embodiment of the present invention, not consequently the restriction of the patent scope of the present invention, all utilize the equivalent structure or equivalent flow transform made of the content of the specification and the attached drawings, or directly or indirectly use in other relevant technical fields, all including in the same way the patent protection scope of the present invention.

Claims

1. A corrosion resistant mechanical seal, characterized by: comprises a mechanical seal shell (1) and a movable ring seat (5);

mechanical seal housing (1): the movable ring is characterized in that a stationary ring (3) is mounted inside, a spring (6) is mounted inside the movable ring seat (5), a fixing piece (7) is clamped at the right side end of the spring (6), the left side surface of the stationary ring (3) is attached to the right side surface of the movable ring (4), the right side surface of the fixing piece (7) is clamped with the left side surface of the movable ring (4), mounting strips (9) are arranged on two sides of the middle of the movable ring seat (5), a shaft sleeve (8) is mounted in the middle of the movable ring seat (5), and the mounting strips (9) are clamped with a mounting groove at the right end of the outer side surface of the shaft sleeve (8);

wherein: the mechanical seal shell is characterized by further comprising a connecting flange (2), wherein the connecting flange (2) is fixed at the left side end of the mechanical seal shell (1).

2. A corrosion resistant mechanical seal according to claim 1, wherein: still include protective cover (10) and bolt (11), the left surface at flange (2) is installed in protective cover (10), install in the through-hole of protective cover (10) side with flange (2) surface screw threaded connection's bolt (11).

3. A corrosion resistant mechanical seal according to claim 1, wherein: the sealing device is characterized by further comprising a placing groove (12) and a sealing ring (13), wherein the placing groove (12) is formed in the left side face of the connecting flange (2), and the sealing ring (13) is installed inside the placing groove (12).

4. A corrosion resistant mechanical seal according to claim 2, wherein: still include locking hole (14), connecting plate (15) and screw rod (16), connecting plate (15) have two and correspond around and establish the left surface at protective cover (10), the screw internal thread connection at connecting plate (15) middle part has screw rod (16), the lateral surface at axle sleeve (8) is seted up in locking hole (14).

5. A corrosion resistant mechanical seal according to claim 2, wherein: still include sign frame (17) and data plate (18), sign frame (17) are fixed on the top of protective cover (10) left surface, the inside grafting of sign frame (17) has data plate (18).

6. A corrosion resistant mechanical seal according to claim 1, wherein: still include rotating ring sealing ring (19) and quiet ring sealing ring (20), rotating ring sealing ring (19) joint is in the inside of rotating ring (4), quiet ring sealing ring (20) cup joint the lateral surface at quiet ring (3).

7. A corrosion resistant mechanical seal according to claim 1, wherein: the mechanical seal shell is characterized by further comprising an anti-oxidation coating (21) and a wear-resistant layer (22), wherein the anti-oxidation coating (21) is uniformly coated on the outer side surface of the mechanical seal shell (1), and the wear-resistant layer (22) is bonded on the outer side surface of the anti-oxidation coating (21).

8. A corrosion resistant mechanical seal according to claim 1, wherein: still include spacing post (23), spacing post (23) have two and front and back to correspond and fix the right flank in quick-witted seal shell (1) inside, spacing post (23) and quiet ring (3) right flank's spacing groove looks joint.