Corrosion-resistant mechanical seal for mining explosion-proof submersible desilting electric pump

Abstract

The utility model discloses a corrosion-resistant mechanical seal of a mining explosion-proof type submersible desilting electric pump, which comprises a foundation body and a connecting body, the outer wall of the foundation body is fixedly connected with a connecting frame, the connecting frame is provided with a plurality of connecting holes, the inner walls of the foundation body and the connecting body are respectively provided with a sealing ring, and the sealing rings are connected with the connecting frame. A fixing ring groove is formed in the inner wall of the end, close to the base body, of the connecting body, a connecting ring groove is formed in the inner wall of the end, close to the connecting body, of the base body, a protruding rubber ring is fixedly connected into the fixing ring groove and matched with the connecting ring groove, and a sealing ring groove is formed in the side wall, close to the connecting body, of the base body. A sealing ring groove is formed in the base body, a sealing ring body is arranged in the sealing ring groove, the sealing ring body is fixedly connected to the connecting body, and a plurality of assembling structures are further arranged between the base body and the connecting body. According to the utility model, the sealing work of the electric pump shaft can be better completed through dynamic extrusion, so that equipment can better work in a complex environment.

Description

Technical Field

[0001] The utility model relates to the technical field related to mechanical seals, in particular to a corrosion-resistant mechanical seal for a mine explosion-proof submersible sand-draining electric pump. Background Art

[0002] A mechanical seal is a device that prevents fluid leakage by at least one pair of end faces perpendicular to the axis of rotation. The pair of end faces remain in contact and slide relative to each other under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism and the cooperation of auxiliary seals. When a mechanical seal is set on a mining explosion-proof submersible sand-draining electric pump, a corresponding corrosion-resistant mechanical seal is required.

[0003] Although the existing mechanical seal can smoothly cooperate with the electric pump shaft to complete the sealing work, in the special environment of the mining explosion-proof submersible sand discharge electric pump, the effect of simply using the sealing ring and other structures is poor.

[0004] To this end, this scheme proposes a corrosion-resistant mechanical seal for a mining explosion-proof submersible sand-draining electric pump to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and proposes a corrosion-resistant mechanical seal of a mine-used flameproof submersible sand-discharging electric pump.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A corrosion-resistant mechanical seal for a mining explosion-proof submersible sand-draining electric pump comprises a base body and a connector, a connecting frame is fixedly connected to the outer wall of the base body, the connecting frame is provided with a plurality of connecting holes, sealing rings are provided on the inner walls of the base body and the connector, a fixing ring groove is provided on the inner wall of one end of the connector close to the base body, a connecting ring groove is provided on the inner wall of one end of the base body close to the connector, a raised rubber ring is fixedly connected in the fixed ring groove, the raised rubber ring matches the connecting ring groove, a sealing ring groove is provided on one side wall of the base body close to the connector, a sealing ring body is provided in the sealing ring groove, the sealing ring body is fixedly connected to the connector, and a plurality of assembly structures are also provided between the base body and the connector.

[0008] Preferably, the assembly structure includes a through hole arranged on the connecting body, a through bolt is arranged in the through hole, a through opening is arranged on a side wall of the base body close to the connecting body, a through cavity is arranged on the inner wall of the through opening, a sliding body is slidably connected in the through cavity, a threaded groove is arranged on a side wall of the sliding body close to the through opening, one end of the through bolt is threadedly connected in the threaded groove, one end of the sliding body away from the through bolt is fixedly connected to a tightening spring, and one end of the tightening spring away from the sliding body is fixedly connected to the inner wall of the through cavity.

[0009] Preferably, an auxiliary tube is slidably connected in the through-hole, the through-bolt passes through the auxiliary tube, and the auxiliary tube is fixedly connected to the connecting body.

[0010] Preferably, a sealing coating is provided on the sealing ring body.

[0011] Preferably, a plurality of clamping grooves are provided on a side wall of the connecting ring groove close to the raised rubber ring, and clamping blocks are provided in each of the plurality of clamping grooves, and the plurality of clamping blocks are fixedly connected to the raised rubber ring.

[0012] Preferably, the through cavity is square, and the sliding body is also square, and the shape of the sliding body matches the through cavity.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, while the basic body and the sealing ring in the connecting body are used for preliminary sealing, the connection between the connecting body and the basic body, as well as the setting of the tightening spring, allows the connecting body to always keep a tendency to approach the basic body when the device is working, so that the raised rubber ring can be squeezed to make the raised rubber ring bulge inward and fit tightly on the electric pump shaft. Such dynamic squeezing makes the sealing effect of the electric pump shaft better and can be better used in complex environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a corrosion-resistant mechanical seal of a mine-use flameproof submersible sand-draining electric pump proposed by the utility model;

[0016] Figure 2 This is a front structural cross-sectional view of a corrosion-resistant mechanical seal of a mine flameproof submersible sand-draining electric pump proposed by the utility model;

[0017] Figure 3 for Figure 2 A magnified view of the structure in the middle;

[0018] Figure 4 for Figure 2 A magnified view of the structure in B.

[0019] In the figure: 1 base body, 2 connecting body, 3 connecting frame, 4 connecting hole, 5 sealing ring, 6 fixing ring groove, 7 connecting ring groove, 8 raised rubber ring, 9 sealing ring groove, 10 sealing ring body, 11 through hole, 12 through bolt, 13 through opening, 14 through cavity, 15 sliding body, 16 thread groove, 17 tightening spring, 18 auxiliary tube, 19 card slot, 20 card block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-Figure 4 A corrosion-resistant mechanical seal of a flameproof submersible sand discharge electric pump for mining, comprising a base body 1 and a connector 2, a connecting frame 3 is fixedly connected to the outer wall of the base body 1, a plurality of connecting holes 4 are arranged on the connecting frame 3, sealing rings 5 ​​are arranged on the inner walls of the base body 1 and the connector 2, a fixing ring groove 6 is arranged on the inner wall of one end of the connector 2 close to the base body 1, a connecting ring groove 7 is arranged on the inner wall of one end of the base body 1 close to the connector 2, a raised rubber ring 8 is fixedly connected in the fixed ring groove 6, the raised rubber ring 8 matches the connecting ring groove 7, a plurality of card grooves 19 are arranged on one side wall of the connecting ring groove 7 close to the raised rubber ring 8, and a plurality of card grooves 19 is provided with a card block 20, and multiple card blocks 20 are fixedly connected to the raised rubber ring 8, so that the raised rubber ring 8 can be effectively limited to be located on one side of the connecting ring groove 7, preventing the raised rubber ring 8 from escaping from the connecting ring groove 7, and then the raised rubber ring 8 can be smoothly squeezed and raised to fit the electric pump shaft, so as to better complete the sealing work. A sealing ring groove 9 is provided on one side wall of the base body 1 close to the connecting body 2, and a sealing ring body 10 is provided in the sealing ring groove 9. The sealing ring body 10 is fixedly connected to the connecting body 2, and a sealing coating is provided on the sealing ring body 10, so that the sealing effect of the combined working connection is better;

[0022] A plurality of assembly structures are also provided between the base body 1 and the connecting body 2. The assembly structure includes a through hole 11 provided on the connecting body 2, a through bolt 12 is provided in the through hole 11, a through opening 13 is provided on a side wall of the base body 1 close to the connecting body 2, a through cavity 14 is provided on the inner wall of the through opening 13, a sliding body 15 is slidably connected in the through cavity 14, the through cavity 14 is square, the sliding body 15 is also square, and the shape of the sliding body 15 matches the through cavity 14, so that the rotation problem can be avoided, so that the sliding body 15 can cooperate with the rotating through bolt 12 to complete the threaded connection work, a thread groove 16 is provided on a side wall of the sliding body 15 close to the through opening 13, one end of the through bolt 12 is threadedly connected in the thread groove 16, an auxiliary pipe 18 is slidably connected in the through opening 13, and the through hole 13 is provided with a through hole 14. The through bolt 12 passes through the auxiliary tube 18, and the auxiliary tube 18 is fixedly connected to the connecting body 2. With the help of the auxiliary tube 18, the through bolt 12 can be more accurately inserted into the through port 13, and then connected with the threaded groove 16, which is convenient for the staff to connect the base body 1 and the connecting body 2. The end of the sliding body 15 away from the through bolt 12 is fixedly connected with a tightening spring 17, and the end of the tightening spring 17 away from the sliding body 15 is fixedly connected to the inner wall of the through cavity 14. After the connection is completed, the elastic force of the tightening spring 17 can be used to pull the connecting body 2 to always keep the trend of being close to the base body 1, so that the raised rubber ring 8 can always be pushed to bulge inward, and then better fit on the electric pump shaft to complete the sealing work, so that the equipment can work better in complex environments.

[0023] During the use of the utility model, first, the staff can push the connecting body 2 close to the base body 1, so that the sealing ring body 10 is inserted into the sealing ring groove 9, the raised rubber ring 8 is inserted into the connecting ring groove 7, and the multiple clamping blocks 20 are respectively inserted into the multiple clamping grooves 19. At the same time, the multiple auxiliary tubes 18 can be inserted into the corresponding through-holes 13. At this time, the multiple through bolts 12 can be passed through the multiple through holes 11 and the auxiliary tubes 18, and then the through bolts 12 are rotated to make the through bolts 12 and the threaded grooves 16 threadedly connected together, so that the connecting body 2 and the base body 1 can be assembled smoothly, and then the staff The electric pump shaft can be made to pass through the base body 1 and the connecting body 2, the electric pump shaft will contact the sealing ring 5 and push the raised rubber ring 8, so that the base body 1 and the connecting body 2 are moved away from each other under the squeezing action of the raised rubber ring 8, and then the base body 1 can be installed on the equipment with the help of multiple connecting holes 4 on the connecting frame 3. In this way, under the elastic force of the tightening spring 17, the connecting body 2 can always maintain the tendency to approach the base body 1, and then can always squeeze the raised rubber ring 8, so that the raised rubber ring 8 can always dynamically fit on the electric pump shaft, better complete the sealing work, and thus enable the equipment to work better in a complex environment.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A corrosion-resistant mechanical seal for a flameproof submersible sand removal electric pump for use in mining, comprising a base body (1) and a connector (2), characterized in that: A connecting frame (3) is fixedly connected to the outer wall of the base body (1), and a plurality of connecting holes (4) are provided on the connecting frame (3). Sealing rings (5) are provided on the inner walls of the base body (1) and the connecting body (2). A fixing ring groove (6) is provided on the inner wall of one end of the connecting body (2) close to the base body (1). A connecting ring groove (7) is provided on the inner wall of one end of the base body (1) close to the connecting body (2). A raised rubber ring (8) is fixedly connected in the fixing ring groove (6), and the raised rubber ring (8) matches the connecting ring groove (7). A sealing ring groove (9) is provided on one side wall of the base body (1) close to the connecting body (2). A sealing ring body (10) is provided in the sealing ring groove (9), and the sealing ring body (10) is fixedly connected to the connecting body (2). A plurality of assembly structures are also provided between the base body (1) and the connecting body (2).

2. The corrosion-resistant mechanical seal of a flameproof submersible sand removal electric pump for mining according to claim 1 is characterized in that: The assembly structure comprises a through hole (11) arranged on a connecting body (2), a through bolt (12) being arranged in the through hole (11), a through opening (13) being arranged on a side wall of the base body (1) close to the connecting body (2), a through cavity (14) being arranged on the inner wall of the through opening (13), a sliding body (15) being slidably connected in the through cavity (14), a thread groove (16) being arranged on a side wall of the sliding body (15) close to the through opening (13), one end of the through bolt (12) being threadedly connected in the thread groove (16), one end of the sliding body (15) away from the through bolt (12) being fixedly connected to a tightening spring (17), and one end of the tightening spring (17) away from the sliding body (15) being fixedly connected to the inner wall of the through cavity (14).

3. The corrosion-resistant mechanical seal of a flameproof submersible sand removal electric pump for mining according to claim 2 is characterized in that: An auxiliary tube (18) is slidably connected in the through-hole (13), the through-bolt (12) penetrates the auxiliary tube (18), and the auxiliary tube (18) is fixedly connected to the connecting body (2).

4. The corrosion-resistant mechanical seal of a flameproof submersible sand removal electric pump for mining according to claim 1 is characterized in that: The sealing ring body (10) is provided with a sealing coating.

5. The corrosion-resistant mechanical seal of a flameproof submersible sand removal electric pump for mining according to claim 1 is characterized in that: A plurality of clamping grooves (19) are provided on a side wall of the connecting ring groove (7) close to the raised rubber ring (8), and a clamping block (20) is provided in each of the plurality of clamping grooves (19). The plurality of clamping blocks (20) are fixedly connected to the raised rubber ring (8).

6. The corrosion-resistant mechanical seal of a flameproof submersible sand removal electric pump for mining according to claim 2 is characterized in that: The through cavity (14) is square in shape, and the sliding body (15) is also square in shape, and the shape of the sliding body (15) matches that of the through cavity (14).

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