CN217129896U - Mechanical sealing mechanism for easily-maintained centrifugal pump - Google Patents
Mechanical sealing mechanism for easily-maintained centrifugal pump Download PDFInfo
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- CN217129896U CN217129896U CN202221137682.7U CN202221137682U CN217129896U CN 217129896 U CN217129896 U CN 217129896U CN 202221137682 U CN202221137682 U CN 202221137682U CN 217129896 U CN217129896 U CN 217129896U
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- mechanical seal
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Abstract
The utility model provides an easily maintain mechanical seal mechanism for centrifugal pump. An easy-to-maintain mechanical seal mechanism for a centrifugal pump, comprising: a centrifugal pump; the output shaft is arranged on one side of the centrifugal pump, a sealing ring is arranged on one side of the outer surface of the output shaft, a pressing plate is arranged on one side of the outer surface of the sealing ring, and a mounting column is fixedly arranged on the outer surface of the pressing plate; the two setting grooves are respectively arranged at two sides of the inner cavity of the mounting column; stop device sets up in the inside that sets up the groove, and stop device includes the fixed block, the bottom fixed mounting of fixed block has the embedding arc piece, the middle fixedly connected with pull rod at fixed block top, the first spring of top fixedly connected with of fixed block. The utility model provides an easy mechanical seal mechanism for maintenance centrifugal pump drives the embedding arc piece through twitching the pull rod and breaks away from the embedded groove to dismantle the sealing washer from the output shaft surface fast, this device simple structure, the practicality is strong, can dismantle the sealing washer fast and dismantle and install the sealing washer.
Description
Technical Field
The utility model relates to a centrifugal pump field especially relates to an easily maintain mechanical seal mechanism for centrifugal pump.
Background
The centrifugal pump is a pump for conveying a liquid by centrifugal force generated when an impeller rotates.
The mechanical seal structure of the centrifugal pump is divided into two parts, including a moving ring and a static ring, the pump seal is a plane seal, and the pump seal prevents liquid from flowing inside and outside the seal in the rotating process through two smooth planes.
Among the prior art, the centrifugal pump is at the operation in-process, impeller and pump shaft can produce high temperature at the rotation in-process, and the mechanical seal of centrifugal pump generally is rubber seal, rubber seal itself is the wearing parts, and in the environment of high temperature, cause the mechanical seal of centrifugal pump to cause the damage very easily, the mechanical seal life who has led to the centrifugal pump reduces, traditional rubber seal generally is through the bolt fastening on the surface of pump shaft, but rubber seal life is low, need frequently to change sealing rubber spare and maintain the centrifugal pump, but the bolt fastening need use repair tools to dismantle, still need carry demolition tools during the dismantlement, it is more complicated during the dismantlement.
Therefore, it is necessary to provide a mechanical sealing mechanism for a centrifugal pump, which is easy to maintain, to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides an easy mechanical seal mechanism for maintenance centrifugal pump has solved the bolt fastening and has need use repair tools to dismantle, still need carry demolition tool during the dismantlement, more complicated problem during the dismantlement.
In order to solve the technical problem, the utility model provides a pair of easily maintain mechanical seal mechanism for centrifugal pump, include: a centrifugal pump;
the output shaft is arranged on one side of the centrifugal pump, a sealing ring is arranged on one side of the outer surface of the output shaft, a pressing plate is arranged on one side of the outer surface of the sealing ring, and a mounting column is fixedly mounted on the outer surface of the pressing plate;
the two setting grooves are respectively arranged on two sides of the inner cavity of the mounting column;
stop device, stop device set up in set up the inside in groove, stop device includes the fixed block, the bottom fixed mounting of fixed block has the embedding arc piece, the middle fixedly connected with pull rod at fixed block top, the first spring of top fixedly connected with of fixed block.
Preferably, both sides of the outer surface of the mounting column are provided with communicating holes.
Preferably, both sides of the outer surface of the centrifugal pump are provided with embedded grooves.
Preferably, the periphery of the inner cavity of the pressing plate is provided with mounting grooves, and reinforcing devices are arranged inside the mounting grooves.
Preferably, the reinforcing device comprises an arc-shaped pressing block, a drawing rod is fixedly mounted in the middle of one side of the arc-shaped pressing block, and a second spring is fixedly connected to one side of the arc-shaped pressing block.
Preferably, the periphery of the outer surface of the pressing plate is provided with communicating cavities.
Compared with the prior art, the utility model provides a pair of easily maintain mechanical seal mechanism for centrifugal pump has following beneficial effect:
the utility model provides an easy mechanical seal mechanism for maintenance centrifugal pump drives the embedding arc piece through twitching the pull rod and breaks away from the embedded groove to dismantle the sealing washer from the output shaft surface fast, this device simple structure, the practicality is strong, can dismantle the sealing washer fast and dismantle and install the sealing washer.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of a mechanical sealing mechanism for an easy-maintenance centrifugal pump according to the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a schematic view of the structure of the limiting device shown in FIG. 1;
fig. 4 is a schematic structural diagram of a second embodiment of a mechanical sealing mechanism for an easy-maintenance centrifugal pump according to the present invention;
fig. 5 is a schematic view of the reinforcing apparatus shown in fig. 4.
Reference numbers in the figures: 1. centrifugal pump, 2, output shaft, 3, sealing washer, 4, clamp plate, 5, erection column, 6, embedded groove, 7, stop device, 71, fixed block, 72, embedding arc piece, 73, pull rod, 74, first spring, 8, setting groove, 9, intercommunicating pore, 10, mounting groove, 11, intercommunication chamber, 12, reinforcing apparatus, 121, arc briquetting, 122, take out the pole, 123, second spring.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments.
Please refer to fig. 1, fig. 2 and fig. 3 in combination, wherein fig. 1 is a schematic structural diagram of a first embodiment of a mechanical sealing mechanism for an easy-maintenance centrifugal pump according to the present invention; FIG. 2 is an enlarged view of portion A of FIG. 1; fig. 3 is a schematic structural view of the limiting device shown in fig. 1. An easy-to-maintain mechanical seal mechanism for a centrifugal pump, comprising: a centrifugal pump 1;
the output shaft 2 is arranged on one side of the centrifugal pump 1, a sealing ring 3 is arranged on one side of the outer surface of the output shaft 2, a pressing plate 4 is arranged on one side of the outer surface of the sealing ring 3, and a mounting column 5 is fixedly arranged on the outer surface of the pressing plate 4;
the two setting grooves 8 are respectively arranged at two sides of the inner cavity of the mounting column 5;
The sealing ring 3 is connected to the left side of the pressing plate 4 through glue, is in an inverted T shape, is attached to the surface on the right side of the centrifugal pump 1 and is sleeved on the outer surface of the output shaft 2, and the pressing plate 4 is in a circular ring shape.
The mounting post 5 is cylindrical and the pressure plate 4 is in the middle of the mounting post 5.
The two setting grooves 8 are respectively arranged at the top and the bottom of the inner cavity of the mounting column 5, the embedded arc block 72 is arranged at the side of the fixed block 71 close to the centrifugal pump 1, and the pull rod 73 is fixed at the side of the fixed block 71 far away from the centrifugal pump 1 and extends out of the outer surface of the mounting column 5 through the communication hole 9.
One end of the first spring 74 is connected with the fixed block 71, and the other end is connected with the side of the inner cavity of the setting groove 8 far away from the centrifugal pump 1 and is sleeved on the outer surface of the pull rod 73.
And communication holes 9 are formed in two sides of the outer surface of the mounting column 5.
The communication hole 9 communicates with the installation groove 8.
And embedded grooves 6 are formed in the two sides of the outer surface of the centrifugal pump 1.
The two embedded grooves 6 are respectively arranged at the top and the bottom of the outer surface of the centrifugal pump 1 and are matched with the embedded arc blocks 72.
The utility model provides a pair of easily maintain mechanical seal mechanism for centrifugal pump's theory of operation as follows:
in operation, the user firstly holds the upper and lower pull rods 73 and pulls them out to the upper and lower sides respectively, and drives the embedded arc block 72 to disengage from the embedded groove 6, and at the same time, presses the first spring 74.
Then the mounting post 5, the pressure plate 4 and the sealing ring 3 are connected and detached from the surface of the output shaft 2.
When the fitting is installed, the fitting arc 72 is fitted into the fitting groove 6.
Compared with the prior art, the utility model provides a pair of easily maintain mechanical seal mechanism for centrifugal pump has following beneficial effect:
the utility model provides an easy mechanical seal mechanism for maintenance centrifugal pump drives embedding arc piece 72 through twitch pull rod 73 and breaks away from embedded groove 6 to dismantle sealing washer 3 from the output shaft surface fast, this device simple structure, the practicality is strong, can dismantle sealing washer 3 fast and dismantle and install sealing washer 3.
Second embodiment
Referring to fig. 4 and 5 in combination, a second embodiment of the present application provides another mechanical seal mechanism for an easy-to-maintain centrifugal pump based on the mechanical seal mechanism for an easy-to-maintain centrifugal pump provided in the first embodiment of the present application. The second embodiment is only the preferred mode of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.
Specifically, the difference that the easy mechanical seal mechanism for centrifugal pump that maintains that the second embodiment of this application provided lies in, an easy mechanical seal mechanism for centrifugal pump that maintains, 4 inner chambers of clamp plate all are provided with mounting groove 10 all around, the inside of mounting groove 10 is provided with reinforcing apparatus 12.
The four mounting grooves 10 are matched with the arc-shaped pressing block 121.
The reinforcing device 12 comprises an arc-shaped pressing block 121, a pulling rod 122 is fixedly mounted in the middle of one side of the arc-shaped pressing block 121, and a second spring 123 is fixedly connected to one side of the arc-shaped pressing block 121.
The pulling rod 122 is fixed on the side of the arc pressing block 121 far away from the sealing ring 3, and the other end of the pulling rod 122 extends out of the outer surface of the pressing plate 4.
The second spring 123 is sleeved on the outer surface of the pulling rod 122, meanwhile, one end of the second spring 123 is connected with the side of the inner cavity of the installation groove 10 far away from the sealing ring 3, and the other end of the second spring 123 is connected with the surface of the arc-shaped pressing block 121.
The second spring 123 pushes the arc-shaped pressing block 121 out of the mounting groove 10.
And communication cavities 11 are formed in the periphery of the outer surface of the pressing plate 4.
The draw-out rod 122 extends out of the outer surface of the pressure plate 4 through the communication chamber 11.
The utility model provides a pair of easily maintain mechanical seal mechanism for centrifugal pump's theory of operation as follows:
during operation, the arc pressing block 121 is firstly pressed towards the surface of the output shaft 2 through the restoring elasticity of the second spring 123, and the sealing ring 3 is pressed towards the surface of the output shaft 2 by the arc pressing block 121, so that the sealing ring 3 is more attached to the output shaft 2.
Compared with the prior art, the utility model provides a pair of easily maintain mechanical seal mechanism for centrifugal pump has following beneficial effect:
the utility model provides an easily maintain mechanical seal mechanism for centrifugal pump promotes arc briquetting 121 through the elasticity that recovers of second spring 123 and extrudes sealing washer 3 for sealing washer 3 and 2 contact of output shaft are laminated more, thereby strengthen the sealed effect of sealing washer 3.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (6)
1. The utility model provides an easy mechanical seal mechanism for maintain centrifugal pump which characterized in that includes: a centrifugal pump;
the output shaft is arranged on one side of the centrifugal pump, a sealing ring is arranged on one side of the outer surface of the output shaft, a pressing plate is arranged on one side of the outer surface of the sealing ring, and a mounting column is fixedly mounted on the outer surface of the pressing plate;
the two setting grooves are respectively arranged on two sides of the inner cavity of the mounting column;
stop device, stop device set up in set up the inside in groove, stop device includes the fixed block, the bottom fixed mounting of fixed block has the embedding arc piece, the middle fixedly connected with pull rod at fixed block top, the first spring of top fixedly connected with of fixed block.
2. The mechanical seal mechanism for the easy-maintenance centrifugal pump according to claim 1, wherein communication holes are provided on both sides of the outer surface of the mounting post.
3. The mechanical seal mechanism for the easy-maintenance centrifugal pump according to claim 1, wherein both sides of the outer surface of the centrifugal pump are provided with embedded grooves.
4. The mechanical sealing mechanism for the easy-maintenance centrifugal pump according to claim 1, wherein an installation groove is formed around the inner cavity of the pressure plate, and a reinforcing device is arranged inside the installation groove.
5. The mechanical seal mechanism for the easy-maintenance centrifugal pump according to claim 4, wherein the reinforcing device comprises an arc-shaped pressing block, a drawing rod is fixedly installed in the middle of one side of the arc-shaped pressing block, and a second spring is fixedly connected to one side of the arc-shaped pressing block.
6. The mechanical seal mechanism for the easy-maintenance centrifugal pump according to claim 1, wherein the periphery of the outer surface of the pressure plate is provided with a communicating cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221137682.7U CN217129896U (en) | 2022-05-13 | 2022-05-13 | Mechanical sealing mechanism for easily-maintained centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221137682.7U CN217129896U (en) | 2022-05-13 | 2022-05-13 | Mechanical sealing mechanism for easily-maintained centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217129896U true CN217129896U (en) | 2022-08-05 |
Family
ID=82615715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221137682.7U Active CN217129896U (en) | 2022-05-13 | 2022-05-13 | Mechanical sealing mechanism for easily-maintained centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217129896U (en) |
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2022
- 2022-05-13 CN CN202221137682.7U patent/CN217129896U/en active Active
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