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CN-121971923-A - Front-mounted filtering system of vacuum pump

CN121971923ACN 121971923 ACN121971923 ACN 121971923ACN-121971923-A

Abstract

The invention relates to the technical field of filtering equipment, in particular to a vacuum pump pre-filtering system which comprises a shell assembly, a rotary filter cylinder, a collecting assembly and a quick fixer. The shell assembly comprises a cylinder assembly, an air inlet pipeline, a sealing upper cover and an air outlet pipeline. The rotary filter cartridge is rotatably disposed within the housing assembly. The collection assembly comprises a collection pipeline and a collection vessel. The rotary filter cylinder of the vacuum pump pre-filtering system rotates at a high speed so as to throw impurities to the inner wall of the cylinder foundation, then the cylinder foundation is heated through the heating component, the impurities adhered to the inner wall of the cylinder foundation are liquefied and fall off under the high temperature effect, finally enter the collecting vessel through the collecting pipeline, the vacuum pump pre-filtering system can further realize the quick connection between the cylinder assembly and the sealing upper cover through the quick fixer, and the operation is quick and simple, and can be realized only by rotating the adjusting handle.

Inventors

  • HOU NING
  • HOU SHUCHAO
  • WANG GANG
  • QI YUCHENG

Assignees

  • 山东亿宁环保科技有限公司

Dates

Publication Date
20260505
Application Date
20260403

Claims (10)

  1. 1. The vacuum pump pre-filtration system is characterized by comprising a shell assembly (1), a rotary filter cartridge (2) and a collection assembly (3); The shell assembly (1) comprises a cylinder assembly (11) with an opening at the upper end, an air inlet pipeline (12) arranged on the side surface of the cylinder assembly (11), a sealing upper cover (13) detachably arranged at the upper end of the cylinder assembly (11), and an air outlet pipeline (14) arranged above the sealing upper cover (13); The rotary filter cylinder (2) is rotatably arranged in the shell assembly (1), the lower part of the rotary filter cylinder (2) is in rotary sealing connection with the lower part of the cylinder assembly (11), and the upper part of the rotary filter cylinder (2) is in rotary sealing connection with the air outlet pipeline (14); The collecting assembly (3) comprises a collecting pipeline (31) communicated with the right side of the lower end face of the cylinder assembly (11), and a collecting vessel (32) arranged at the tail end of the collecting pipeline (31).
  2. 2. A vacuum pump prefilter system of claim 1, wherein: the sealing upper cover (13) and the cylinder assembly (11) are fixed through a quick fixer (4); The quick fixer (4) comprises a fixed shell (41), a gear assembly (42), a rotating assembly (43) and a moving assembly (44); The fixed shell (41) comprises a hollow annular cavity (411) arranged at the upper half part of the outer wall of the cylinder assembly (11), an adjusting side window (412) arranged at the outer wall of the hollow annular cavity (411), a stop annular plate (413) arranged at the inner wall of the hollow annular cavity (411), and track circular pipes (414) circumferentially uniformly distributed above the hollow annular cavity (411), a stop longitudinal hole (415) is arranged at the outer side of the inner wall of each track circular pipe (414), a guide chute (416) is arranged at the inner side of the inner wall of each track circular pipe (414), the lower end of each track circular pipe (414) is communicated with the hollow annular cavity (411) through a circular pipe lower hole (417), and annular plate through holes (418) and annular cavity lower holes (419) which are in one-to-one correspondence with the track circular pipes (414) are respectively arranged at the lower end face of each stop annular plate (411); The gear assembly (42) comprises an outer ring gear (421) rotatably arranged in the hollow annular cavity (411), and limiting small rings (422) circumferentially and uniformly distributed on the lower end surface of the stop annular plate (413) and in one-to-one correspondence with the annular plate through holes (418), the gear assembly (42) further comprises a driven gear (423) meshed with the outer ring gear (421), a clutch round hole (424) in running fit with the limiting small rings (422) is formed in the driven gear (423), and a gear lower hole (425) is formed at the lower end of the clutch round hole (424); the rotating assembly (43) comprises a torsion lower shaft (431) penetrating through a lower annular cavity hole (419), a gear lower hole (425) and a ring plate through hole (418), a clutch ring (432) arranged on the outer wall of the torsion lower shaft (431) and positioned in a clutch round hole (424), a rotation stopping transverse hole (433) penetrating through the torsion lower shaft (431) and a built-in pressure spring (434) arranged in the rotation stopping transverse hole (433), the rotating assembly (43) further comprises an external threaded rod (435), a sleeve joint lower hole (436) arranged at the lower end of the external threaded rod (435) and sleeved with the torsion lower shaft (431), and a rotation stopping transverse plate (437) arranged in the sleeve joint lower hole (436) and spliced with the rotation stopping transverse hole (433), wherein the rotation stopping transverse plate (437) is positioned above the built-in pressure spring (434), and the lower end of the outer wall of the external threaded rod (435) is further provided with an axial limiting ring (438); The movable assembly (44) comprises an inner threaded ring (441) which is in threaded connection with the outer threaded rod (435), a rotation stopping side block (442) which is arranged on the outer wall of the inner threaded ring (441) and matched with the rotation stopping longitudinal hole (415), a connecting convex ring (443) which is arranged on the upper end face of the inner threaded ring (441), the movable assembly (44) further comprises a movable upper ring (444), a connecting annular groove (445) which is rotationally connected with the connecting convex ring (443) is arranged at the lower end of the movable upper ring (444), a guide round head (446) which is matched with the guide chute (416) is arranged on the side face of the movable upper ring (444), and a fixed pressing plate (447) is further arranged above the outer wall of the movable upper ring (444).
  3. 3. A vacuum pump prefilter system as defined in claim 2, wherein: The cylinder assembly (11) comprises a cylinder foundation (111) with an opening at the upper end, a sealing inner ring (112) arranged at the inner edge of the upper end of the cylinder foundation (111), and a sealing ring groove (113) arranged at the upper end face of the sealing inner ring (112), wherein a conical bottom surface (114) lifted upwards is arranged in the center of the lower end face of the cylinder foundation (111), a connecting shaft tube (115) is arranged below the conical bottom surface (114), a lower static ring (116) is arranged at the lower end of the connecting shaft tube (115), a heating outer wall (117) is arranged in the middle of the outer wall of the cylinder foundation (111), and a fixing flange (118) is arranged at the bottom of the outer wall of the cylinder foundation (111); The sealing upper cover (13) comprises an annular cover plate (131), a sealing convex ring (132) which is arranged on the lower end surface of the annular cover plate (131) and is in sealing fit with the sealing ring groove (113), and a screw convex ring (133) which is arranged on the upper end surface of the annular cover plate (131); The air outlet pipeline (14) comprises an annular upper plate (141), a screw ring groove (142) which is arranged on the lower end surface of the annular upper plate (141) and matched with the screw convex ring (133), an upper static ring (143) which is arranged in the annular upper plate (141), a transverse pipeline (144) which is arranged on the upper static ring (143) and a detection vertical pipe (145) which is communicated with the transverse pipeline (144); The rotary filter cylinder (2) comprises a rotary center shaft (21) which rotatably penetrates through a connecting shaft tube (115), a lower moving coil (22) which is arranged at the lower end of the rotary center shaft (21) and is in rotary sealing connection with a lower fixed coil (116), a middle-arranged cavity (23) which is arranged above the inside of the rotary center shaft (21), cavity air holes (24) which are circumferentially and uniformly distributed on the outer wall of the middle-arranged cavity (23), a filter cylinder body (25) which is arranged outside the rotary center shaft (21), and an upper moving coil (26) which is arranged above the outer wall of the rotary center shaft (21) and is in rotary sealing connection with an upper fixed coil (143).
  4. 4. A vacuum pump prefilter system according to claim 3, wherein: Threaded holes are uniformly distributed in the circumferential direction of the upper end face of the threaded convex ring (133), through holes corresponding to the threaded holes one by one are formed in the threaded ring grooves (142), and fixing bolts are arranged in the corresponding threaded holes and the through holes.
  5. 5. A vacuum pump prefilter system of claim 4, wherein: An adjusting handle (426) is further arranged at the position, corresponding to the adjusting side window (412), of the outer ring gear (421).
  6. 6. A vacuum pump prefilter system of claim 5, wherein: the guide chute (416) includes an inclined portion and a straight portion below the inclined portion.
  7. 7. A vacuum pump prefilter system of claim 6, wherein: A heating component is arranged between the heating outer wall (117) and the cylinder base (111).
  8. 8. A vacuum pump prefilter system of claim 7, wherein: engaging convex strips are circumferentially and uniformly distributed on the upper end face of the clutch round hole (424) and the lower end face of the clutch round ring (432) respectively.
  9. 9. A vacuum pump prefilter system of claim 8, wherein: the connecting convex ring (443) comprises a large-diameter ring part positioned above and a small-diameter ring part positioned below; The connecting ring groove (445) comprises a large-diameter ring groove positioned above and a small-diameter ring groove positioned below.
  10. 10. A vacuum pump prefilter system of claim 9, wherein: also comprises a supporting frame (5); The supporting frame (5) is fixedly connected with the fixed flange (118); The supporting frame (5) is provided with a driving motor (27) for driving the rotary center shaft (21).

Description

Front-mounted filtering system of vacuum pump Technical Field The application relates to the technical field of filtering equipment, in particular to a vacuum pump pre-filtering system. Background In order to protect the internal structure of the vacuum pump, the air inlet end thereof needs to be subjected to a filtering operation. The prior art filtering system is a simple hollow cylinder, a filter screen is placed inside the hollow cylinder, and the filtering operation is realized through the meshes of the filter screen. But the impurities in the mesh are continuously accumulated and thus are required to be continuously disassembled and replaced. However, this prior art has the following problems: 1. The front end of the vacuum pump preposed filtering equipment is not pure external air, but gas generated by a preposed process, the gas contains impurities which are condensed into solid or semi-solid state at normal temperature, such as wax, grease, hot melt adhesive, low molecular polymer and the like, the impurities are adhered to meshes of a filter screen and are difficult to clean, and even if the impurities are blown off the inner wall of a filter cartridge by adopting a back blowing process (the inside of the filter screen is blown outwards), the magazine is firmly adhered to the filter cartridge and cannot slide. 2. The filter cartridge disassembly and assembly process in the prior art is complex, connection between the cartridge cover and the cartridge body is realized through a plurality of bolt pairs, repeated operation is needed in the screwing process, and manpower and material resources are wasted. Disclosure of Invention A vacuum pump pre-filtration system comprises a shell assembly, a rotary filter cartridge, a collection assembly and a quick fixer; The shell assembly comprises a barrel assembly with an opening at the upper end, an air inlet pipeline arranged on the side face of the barrel assembly, a sealing upper cover detachably arranged at the upper end of the barrel assembly and an air outlet pipeline arranged above the sealing upper cover, wherein the barrel assembly comprises a barrel foundation with the opening at the upper end, a sealing inner ring arranged at the inner edge of the upper end of the barrel foundation, a sealing ring groove arranged at the upper end face of the sealing inner ring, a conical bottom face lifted upwards is arranged at the center of the lower end face of the barrel foundation, a connecting shaft pipe is arranged below the conical bottom face, a lower static ring is arranged at the lower end of the connecting shaft pipe, a heating outer wall is arranged in the middle of the outer wall of the barrel foundation, a fixing flange is arranged at the bottom of the outer wall of the barrel foundation, the sealing upper cover comprises an annular cover plate, a sealing convex ring arranged at the lower end face of the annular cover and in sealing fit with the sealing ring groove, a screw joint convex ring arranged at the upper end face of the annular cover, and the air outlet pipeline comprises an annular upper plate, a screw joint ring groove arranged at the lower end face of the annular upper plate and in fit with the screw joint convex ring, an upper static ring arranged in the annular upper plate, a transverse ring arranged in the annular upper pipeline, and a transverse pipeline arranged in the upper pipeline and communicated with a transverse pipeline. Threaded holes are uniformly distributed in the circumferential direction of the upper end face of the threaded convex ring, through holes corresponding to the threaded holes one by one are formed in the threaded ring grooves, and fixing bolts are arranged in the corresponding threaded holes and the through holes. The rotary filter cylinder is rotatably arranged in the shell assembly, the lower part of the rotary filter cylinder is in rotary sealing connection with the lower part of the cylinder assembly, the upper part of the rotary filter cylinder is in rotary sealing connection with the air outlet pipeline, the rotary filter cylinder comprises a rotary center shaft which rotatably penetrates through the connecting shaft tube, a lower moving coil which is arranged at the lower end of the rotary center shaft and is in rotary sealing connection with the lower static coil, a middle cavity which is arranged above the inner part of the rotary center shaft, cavity air holes which are circumferentially and uniformly distributed on the outer wall of the middle cavity, a filter cylinder body which is arranged outside the rotary center shaft, and an upper moving coil which is arranged above the outer wall of the rotary center shaft and is in rotary sealing connection with the upper static coil. The collecting assembly comprises a collecting pipeline communicated with the right side of the lower end face of the cylinder assembly and a collecting vessel arranged at the tail end of the collecting pipeline. The quick fixer