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CN-115111366-B - Packaging type mechanical sealing equipment

CN115111366BCN 115111366 BCN115111366 BCN 115111366BCN-115111366-B

Abstract

The invention relates to the technical field of mechanical sealing, in particular to packaging type mechanical sealing equipment, which comprises a shell, wherein a shaft penetrating through the left side wall and the right side wall of the shell is horizontally arranged on the axis of a cylinder of the shell, a plurality of mounting holes for mounting are formed in the flange wall on the right side of the shell, a fixed ring is arranged on the right side wall in the shell, the fixed ring and the shaft are in concentric sleeve fit, a friction plate is arranged on the left side surface of the fixed ring, a movable ring is movably sleeved on the shaft, the right side surface of the movable ring is mutually matched with the friction plate, a groove is formed in the movable ring, a sealing ring is arranged in the groove, the sealing ring is mutually matched with the shaft, a spring seat is sleeved on the shaft, a main spring is sleeved on the right side of the spring seat, the other end of the main spring is sleeved on the movable ring, the pressure of the movable ring to the friction plate is flexibly adjusted according to external pressure so as to adapt to different working conditions, the abrasion and the heat quantity of the friction plate are reduced on the premise of ensuring sealing effect, and the service life is prolonged.

Inventors

  • WU JUN
  • CHEN SI

Assignees

  • 吴俊�

Dates

Publication Date
20260505
Application Date
20220526

Claims (9)

  1. 1. The integrated mechanical sealing equipment comprises a shell (2), a fixed ring, a movable ring (5) and a pressing device, wherein a shaft (1) penetrating through the left side wall and the right side wall of the shell (2) is horizontally arranged on the axis of a cylinder of the shell (2), a plurality of mounting holes (21) for mounting are formed in the flange wall on the right side of the shell (2), the fixed ring is mounted on the right side wall inside the shell (2), the fixed ring and the shaft (1) are in concentric sleeve fit, a friction plate (4) is mounted on the left side surface of the fixed ring, the movable ring (5) is movably sleeved on the shaft (1), the movable ring (5) is movably sleeved on the movable ring, the right side surface of the movable ring (5) is mutually matched with the friction plate (4), a groove is formed in the movable ring (5), a sealing ring (51) is mounted in the groove, the sealing ring (51) is mutually matched with the shaft (1), a spring seat (7) is sleeved on the shaft (1), a main spring (6) is sleeved on the right side of the spring seat (7), and the other end of the main spring (6) is sleeved on the movable ring (5), and the movable ring is pressed by the pressing device, and the pressing device is pressed by the adjustable pressing device (4; the adjustable compressing device comprises an adjusting ring (8), the left side wall of the shell (2) is provided with the adjusting ring (8), the adjusting ring (8) is in threaded connection with the shell (2), and the adjusting ring (8) is matched with the spring seat (7).
  2. 2. A cartridge type mechanical seal device according to claim 1, wherein the right end of the adjusting ring (8) is provided with a thrust ball bearing (81), and the right end of the thrust ball bearing (81) is matched with the spring seat (7).
  3. 3. A cartridge type mechanical seal device according to claim 1, wherein a plurality of radial ball bearings (82) are mounted on the adjusting ring (8), an outer ring of the radial ball bearings (82) is matched with the adjusting ring (8), and an inner ring of the radial ball bearings (82) is matched with the shaft (1).
  4. 4. A cartridge type mechanical seal device according to claim 1, wherein the adjusting ring (8) is sleeved with a locknut (83), and the locknut (83) is positioned on the left outer wall of the housing (2).
  5. 5. A cartridge type mechanical seal device according to claim 1, wherein the adjusting ring (8) is provided with an annular pointer (84), and a scale is fixedly arranged on the left side wall of the housing (2).
  6. 6. A cartridge type mechanical seal device according to claim 1, wherein two adjusting handles (85) are mounted on the left side of the adjusting ring (8).
  7. 7. The packaging type mechanical sealing device according to claim 1, wherein the left side of the fixed ring is provided with an annular groove, a plurality of abrasion switches (31) are installed in the annular groove, the right side of the movable ring (5) is provided with an annular bulge, the annular bulge is matched with the annular groove, when the friction plate (4) is not abraded, the distance between the annular bulge and the abrasion switches (31) is half of the thickness of the friction plate (4), and the abrasion switches (31) are electrically connected with an external alarm.
  8. 8. A container type mechanical sealing device according to claim 1 is characterized in that the contact part of the movable ring (5) and the main spring (6) is in the shape of a groove, and the right side of the main spring (6) is sleeved in the groove.
  9. 9. A cartridge type mechanical seal device according to claim 1, wherein the main spring (6) is a rectangular coil spring.

Description

Packaging type mechanical sealing equipment Technical Field The invention relates to the technical field of mechanical sealing, in particular to container type mechanical sealing equipment. Background The mechanical seal is a shaft seal device of a rotary machine such as a centrifugal pump, a reaction kettle, and the like. Because the transmission shaft penetrates inside and outside the equipment, a circumferential gap exists between the shaft and the equipment, and if the pressure in the equipment is lower than the external pressure, the external medium leaks into the equipment, and the mechanical seal is the equipment for preventing leakage. The mechanical seal in the prior art has the advantages of simple structure, relatively low cost of parts and stable performance, and is widely applied to various industries. In the prior art, the pressure of a soft sealing material is realized by the elasticity of a spring or the magnetic force of a magnetic material, the leakage of the end face of a shaft is completed by utilizing the characteristics of the elasticity, the self-wettability and the like of the soft sealing material, the elasticity of the spring or the magnetic force of the magnetic material is mostly fixed in mechanical sealing equipment in the prior art, the leakage of the mechanical seal can be caused due to too small pressure of the soft sealing material when the external pressure changes, and the overheating and the wearing of the soft sealing material can be aggravated due to too large pressure of the soft sealing material. For this purpose, a cartridge-type mechanical sealing device is proposed. Disclosure of Invention The invention aims to provide a container type mechanical sealing device, and the pressure of a movable ring to a friction plate is adjusted through an adjustable pressing device so as to solve the problems in the background art. In order to achieve the above purpose, the present invention provides the following technical solutions: a cartridge-type mechanical seal device comprising: The shell is characterized in that a shaft penetrating through the left side wall and the right side wall of the shell is horizontally arranged on the axis of the shell cylinder, and a plurality of mounting holes for mounting are formed in the flange wall on the right side of the shell; The fixed ring is arranged on the right side wall in the shell, the fixed ring and the shaft are concentrically sleeved and matched, and a friction plate is arranged on the left side surface of the fixed ring; The movable ring is movably sleeved on the shaft, the right side surface of the movable ring is matched with the friction plate, a groove is formed in the movable ring, a sealing ring is arranged in the groove, and the sealing ring is matched with the shaft; the spring seat is sleeved on the shaft, the spring seat is installed on the shaft, the main spring is installed on the right side of the spring seat in a sleeved mode, and the other end of the main spring is installed on the movable ring in a sleeved mode; Further comprises: The adjustable compressing device is further arranged on the shell and used for adjusting the pressure of the movable ring on the friction plate. Preferably, the adjustable compressing device comprises an adjusting ring, the left side wall of the shell is provided with the adjusting ring, the adjusting ring is in threaded connection with the shell, and the adjusting ring is matched with the spring seat. Preferably, a thrust ball bearing is mounted at the right end of the adjusting ring, and the right end of the thrust ball bearing is mutually matched with the spring seat. Preferably, a plurality of radial ball bearings are arranged on the adjusting ring, the outer ring of the radial ball bearings is matched with the adjusting ring, and the inner ring of the radial ball bearings is matched with the shaft. Preferably, the adjusting ring is sleeved with a locknut, and the locknut is positioned on the outer wall of the left side of the shell. Preferably, the adjusting ring is provided with an annular pointer, and the left side wall of the shell is fixedly provided with a scale. Preferably, two adjusting handles are arranged on the left side of the adjusting ring. Preferably, the left side of the fixed ring is provided with an annular groove, a plurality of wear switches are arranged in the groove, the right side of the movable ring is provided with an annular protrusion, the annular protrusion is matched with the annular groove, when the friction plate is not worn, the distance between the annular protrusion and the wear switch is half of the thickness of the friction plate, and the wear switch is electrically connected with an external alarm. Preferably, the contact part of the movable ring and the main spring is in a groove shape, and the right side of the main spring is sleeved in the groove. Preferably, the main spring is a rectangular coil spring. Compared with the prior art, the inven