CN113982991B

CN113982991B - Magnetic drive pump with isolation sleeve

Info

Publication number: CN113982991B
Application number: CN202111024141.3A
Authority: CN
Inventors: 陆春荣; 陆铭; 陈红; 张亚平
Original assignee: Jingjiang Hongfei Pump Industry Co ltd
Current assignee: Jingjiang Hongfei Pump Industry Co ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-10-04
Anticipated expiration: 2041-09-02
Also published as: CN113982991A

Abstract

The invention discloses the technical field of magnetic pumps, in particular to a magnetic drive pump with an isolation sleeve, which comprises an isolation outer sleeve and an isolation inner sleeve, wherein the isolation outer sleeve and the isolation inner sleeve are connected through threads, guide cylinders are symmetrically welded on the left side and the right side of the isolation outer sleeve, the isolation inner sleeve is inserted in the isolation outer sleeve, a limit sleeve is welded on the inner side of the isolation inner sleeve, guide rods are symmetrically inserted and installed on the left side and the right side of the isolation inner sleeve, an output shaft is arranged in the isolation inner sleeve, a cylindrical surface of the output shaft is fixedly connected with an inner magnetic rotor through a pin key, a first thrust bearing and a second thrust bearing are respectively installed at two ends of the inner magnetic rotor on the output shaft, and one end of the isolation inner sleeve is connected with a radiating cover through threads, and the magnetic drive pump has the beneficial effects that: through the sealing mechanism who sets up, make keep apart endotheca and heat dissipation lid sealing connection, through the stop gear who sets up, make fixed connection between sealing mechanism and the heat dissipation lid, prevent that sealing mechanism from taking place the dislocation, guarantee the leakproofness between the isolation cover.

Description

Magnetic drive pump with isolation sleeve

Technical Field

The invention relates to the technical field of magnetic pumps, in particular to a magnetic drive pump with an isolation sleeve.

Background

The magnetic pump is widely applied to the fields of chemical industry, petroleum, refining, pharmacy and the like, and can efficiently convey toxic media containing solid particles, toxic gas media and media close to boiling points. The magnetic driving device which is coupled by special intensive, magnetic gathering and push-pull magnetic paths has the advantages of compact structure, small volume, large torque, small eddy current, high magnetic transmission efficiency and the like. When the magnetic pump runs between the inner magnetic rotor and the outer magnetic rotor, the magnetic field cuts magnetic lines of force to generate a large amount of eddy heat, if the isolating sleeve is not arranged or is made of metal materials, the magnetic heat can be gathered to cause the demagnetization of the magnetic steel, and the service life of the pump is greatly shortened.

The inside high temperature of current magnetic drive pump spacer sleeve can't effectually distribute away inside heat for magnetic drive pump spacer sleeve wearing and tearing are serious, are unfavorable for the use of magnetic drive pump spacer sleeve. The sealing structure of the isolating sleeve of the existing magnetic drive pump is simple, and the sealing performance of the isolating sleeve of the magnetic drive pump cannot be guaranteed after the isolating sleeve is used for a long time, so that the normal use of the magnetic drive pump is influenced, and the sealing structure of the existing isolating sleeve is easy to dislocate when in use, so that the sealing performance of the isolating sleeve of the magnetic drive pump is poor. Mostly be flange joint between the current magnetic drive pump spacer sleeve, the installation makes need earlier make between the screw hole accurate to it, then just can advance the bolt screw in, and the installation makes comparatively loaded down with trivial details, has wasted operating time greatly, has reduced work efficiency.

To this end, we propose a magnetically driven pump with a spacer sleeve to solve the above drawbacks.

Disclosure of Invention

The invention aims to provide a magnetic drive pump with an isolation sleeve to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a magnetic force driving pump with an isolation sleeve comprises an isolation outer sleeve and an isolation inner sleeve, wherein the isolation outer sleeve and the isolation inner sleeve are connected through threads, guide cylinders are symmetrically welded on the left side and the right side of the isolation outer sleeve, the isolation inner sleeve is connected in the isolation outer sleeve in an inserted mode, a limiting sleeve is welded on the inner side of the isolation inner sleeve, guide rods are symmetrically connected on the left side and the right side of the isolation inner sleeve in an inserted mode, an output shaft is arranged in the isolation inner sleeve, a cylindrical surface of the output shaft is fixedly connected with an inner magnetic rotor through a pin key, a first thrust bearing and a second thrust bearing are respectively installed at two ends of the inner magnetic rotor on the output shaft, one end of the isolation inner sleeve is connected with a heat dissipation cover through threads, a sealing mechanism is arranged between the heat dissipation cover and the isolation inner sleeve, a limiting mechanism is arranged in the sealing mechanism, heat dissipation fins are welded on the outer side of the heat dissipation cover in a circumferential array mode, guide holes are symmetrically formed in the left side and the right side of the heat dissipation cover, grooves are formed in a circumferential array, clamping blocks are welded in the grooves, and fixing sleeves are welded on the inner side of the heat dissipation cover.

Preferably, the guide rod is welded with the isolation inner sleeve, one end of the guide rod is connected with the guide cylinder in an inserting mode, and the other end of the guide rod is connected with the guide hole in an inserting mode.

Preferably, the first thrust bearing and the second thrust bearing are symmetrically distributed at two ends of the inner magnetic rotor, the first thrust bearing is in running fit with the limiting sleeve, and the second thrust bearing is in running fit with the fixing sleeve.

Preferably, the output shaft penetrates through the fixed sleeve, and the inner magnetic rotor is arranged in the isolation inner sleeve.

Preferably, the sealing mechanism includes: first sealing washer, second sealing washer, extrusion circle, third sealing washer, ring channel and rectangle through-hole, keep apart the one end of endotheca and overlap in proper order from inside to outside and be equipped with first sealing washer, second sealing washer and third sealing washer, be provided with the extrusion circle between first sealing washer and the second sealing washer, the ring channel has been seted up to the side of third sealing washer, the rectangle through-hole has been seted up to the inboard one-tenth circumference array of ring channel.

Preferably, the limiting mechanism comprises: the annular groove is internally provided with the annular gasket, and the side surface of the annular gasket is bonded with the U-shaped seat in a circumferential array.

Preferably, the U-shaped seat penetrates through the rectangular through hole, one end of the U-shaped seat is connected with the groove in an inserting mode, and the U-shaped seat is connected with the clamping block in a clamping mode.

Preferably, the side surface of the second sealing ring is convexly provided with an annular plate, the annular plate is inserted into the annular groove, and the annular plate is contacted with the annular gasket.

Compared with the prior art, the invention has the beneficial effects that: the invention has reasonable structure and strong functionality, and has the following advantages:

1. the guide rod is inserted along the guide cylinder during installation, so that the threaded hole of the isolating outer sleeve and the threaded hole of the isolating inner sleeve are accurately aligned with each other, subsequent fixed installation is facilitated, the guide rod is inserted along the guide hole during installation of the radiating cover, the threaded hole of the isolating inner sleeve and the threaded hole of the radiating cover are accurately aligned with each other, the guide rod, the guide cylinder and the guide hole are matched, the isolation sleeve is conveniently installed, and the working efficiency is improved;

2. by utilizing the arranged sealing mechanism and the limiting mechanism, the isolation inner sleeve is in sealing connection with the heat dissipation cover through the arranged sealing mechanism, the sealing mechanism is fixedly connected with the heat dissipation cover through the arranged limiting mechanism, the sealing mechanism is prevented from being dislocated, and the sealing performance between the isolation sleeves is ensured.

Drawings

FIG. 1 is a schematic view of the structure of the magnetic drive pump isolation sleeve of the present invention;

FIG. 2 is a schematic view of the structure of the isolation sleeve of the present invention;

FIG. 3 is a schematic half-sectional view of the magnetic drive pump isolation sleeve structure of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 3;

FIG. 5 is a schematic view of a heat dissipation cover according to the present invention;

FIG. 6 is an exploded view of the magnetic drive pump spacer sleeve structure of the present invention;

fig. 7 is a schematic view of the sealing structure of the present invention.

In the figure: 1. an isolation jacket; 11. a guide cylinder; 2. an isolation inner sleeve; 21. a limiting sleeve; 22. a guide bar; 3. an output shaft; 31. an inner magnetic rotor; 32. a first thrust bearing; 33. a second thrust bearing; 4. a heat dissipation cover; 41. a heat dissipating fin; 42. a guide hole; 43. a groove; 44. a clamping block; 5. a fixed sleeve; 6. a first seal ring; 61. a second seal ring; 62. extruding a ring; 7. an annular gasket; 71. a U-shaped seat; 8. a third seal ring; 81. an annular groove; 82. and a rectangular through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 7, the present invention provides a technical solution: the utility model provides a take magnetic drive pump of isolation cover, including keeping apart overcoat 1 and keeping apart endotheca 2, keep apart overcoat 1 and keep apart endotheca 2 and pass through threaded connection, the left and right sides symmetrical welding of keeping apart overcoat 1 has guide cylinder 11, it has kept apart endotheca 2 to peg graft in the isolation overcoat 1, the inboard welding of keeping apart endotheca 2 has stop collar 21, the left and right sides symmetrical grafting of keeping apart endotheca 2 is installed guide bar 22, guide bar 22 and the welding of keeping apart endotheca 2, the one end and the guide cylinder 11 of guide bar 22 peg graft, the guide bar 22 of keeping apart endotheca 2 both sides inserts along the guide cylinder 11 of keeping apart overcoat 1 both sides, thereby make the screw hole of keeping apart overcoat 2 accurate to it with the screw hole of keeping apart endotheca 1.

Keep apart and be provided with output shaft 3 in the endotheca 2, the face of cylinder of output shaft 3 passes through interior magnet rotor 31 of round pin key fixedly connected with, installs first footstep bearing 32 and second footstep bearing 33 respectively at the both ends of interior magnet rotor 31 on the output shaft 3, and the one end of keeping apart endotheca 2 has cooling cover 4 through threaded connection, and cooling cover 4 and keep apart and be provided with sealing mechanism between the endotheca 2, sealing mechanism including: first sealing washer 6, second sealing washer 61, extrusion ring 62, third sealing washer 8, ring channel 81 and rectangle through-hole 82, keep apart the one end of endotheca 2 and overlap in proper order from inside to outside and be equipped with first sealing washer 6, second sealing washer 61 and third sealing washer 8, be provided with extrusion ring 62 between first sealing washer 6 and the second sealing washer 61, ring channel 81 has been seted up to the side of third sealing washer 8, rectangle through-hole 82 has been seted up to the inboard one-tenth circumference array of ring channel 81, extrude extrusion ring 62 through first sealing washer 6 and second sealing washer 61, make extrusion ring 62 deformation closely laminate with heat exchanger 4, make sealing connection between heat exchanger 4 and the isolation endotheca 2.

Be provided with stop gear in the sealing mechanism, stop gear is including: the annular gasket 7 and the U-shaped seat 71 are arranged in the annular groove 81, the annular gasket 7 is arranged in the annular groove 81, the U-shaped seats 71 are bonded on the side face of the annular gasket 7 in a circumferential array, the U-shaped seats 71 penetrate through the rectangular through hole 82, one end of the U-shaped seats 71 is inserted into the groove 43, the U-shaped seats 71 are clamped with the fixture blocks 44, annular plates are arranged on the side face of the second sealing ring 61 in a protruding mode, the annular plates are inserted into the annular groove 81 and are in contact with the annular gasket 7, the annular gasket 7 is inserted into the annular groove 81, the U-shaped seats 71 penetrate through the rectangular through hole 82, the U-shaped seats 71 are inserted into the groove 43, the U-shaped seats 71 are clamped with the fixture blocks 44, the protruding annular plates of the second sealing ring 61 are inserted into the annular groove 81 of the third sealing ring 8, the annular gasket 7 is tightly attached to the third sealing ring 8, and the sealing mechanisms are connected in a sealing mode.

The outer side of the heat dissipation cover 4 is welded with heat dissipation fins 41 in a circumferential array mode, the isolation sleeve is dissipated heat through the heat dissipation fins 41, guide holes 42 are symmetrically formed in the left side and the right side of the heat dissipation cover 4, the other end of the guide rod 22 is connected with the guide holes 42 in an inserting mode, the guide rod 22 is inserted along the guide holes 42 in the two sides of the heat dissipation cover 4, and therefore the threaded holes of the isolation inner sleeve 2 and the threaded holes of the heat dissipation cover 4 are aligned accurately.

The inboard of heat exchanger 4 becomes the circumference array and has seted up recess 43, the welding has the fixture block 44 in the recess 43, the inboard welding of heat exchanger 4 has fixed sleeve 5, output shaft 3 runs through fixed sleeve 5 and sets up, interior magnetic rotor 31 sets up in keeping apart endotheca 2, the both ends of interior magnetic rotor 31 of first footstep bearing 32 and second footstep bearing 33 symmetric distribution, first footstep bearing 32 and stop collar 21 normal running fit, second footstep bearing 33 and fixed sleeve 5 normal running fit, through the cooperation of first footstep bearing 32 and stop collar 21, second footstep bearing 33 and fixed sleeve 5 cooperation, thereby to output shaft 3 and interior magnetic rotor 31 erection bracing.

The working principle is as follows: when the isolating sleeve is installed, the guide rods 22 on the two sides of the isolating inner sleeve 2 are inserted along the guide cylinders 11 on the two sides of the isolating outer sleeve 1, so that the threaded holes of the isolating outer sleeve 2 and the threaded holes of the isolating inner sleeve 1 are accurately aligned to facilitate subsequent fixed installation, the output shaft 3 and the inner magnetic rotor 31 are installed in the isolating inner sleeve 2, the first thrust bearing 32 is installed in the limiting sleeve 21, the heat dissipation cover 4 is installed and abutted to the isolating inner sleeve 2, the guide rods 22 are inserted along the guide holes 42 on the two sides of the heat dissipation cover 4, so that the threaded holes of the isolating inner sleeve 2 and the threaded holes of the heat dissipation cover 4 are accurately aligned to facilitate installation and abutting of the heat dissipation cover 4 and the isolating inner sleeve 2, the isolating sleeve is convenient to install through cooperation of the guide rods 22, the guide cylinders 11 and the guide holes 42, and the work efficiency is improved.

Through the arranged sealing mechanism, when the heat dissipation cover 4 is installed and butted with the isolation inner sleeve 2, the first sealing ring 6, the extrusion ring 62 and the second sealing ring 61 are sequentially sleeved on the isolation inner sleeve 2, the extrusion ring 62 is extruded through the first sealing ring 6 and the second sealing ring 61, the extrusion ring 62 is deformed to be tightly attached to the heat dissipation cover 4, the annular gasket 7 is inserted into the annular groove 81, the U-shaped seat 71 penetrates through the rectangular through hole 82, the U-shaped seat 71 is inserted into the groove 43, the U-shaped seat 71 is clamped with the clamping block 44, the heat dissipation cover 4 is installed along the isolation inner sleeve 2 in an inserted mode, when the heat dissipation cover 4 is tightly butted with the isolation inner sleeve 2, the protruding annular plate of the second sealing ring 61 is inserted into the annular groove 81 of the third sealing ring 8, the annular gasket 7 is tightly attached to the third sealing ring 8, the sealing mechanisms are mutually connected in a sealing mode, the sealing mechanisms are fixedly connected with the heat dissipation cover 4 through the matching of the arranged sealing mechanisms and the limiting mechanisms, the sealing mechanisms are prevented from being dislocated, and the sealing performance between the isolation sleeves is guaranteed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a take magnetic drive pump of isolation cover, includes isolation overcoat (1) and isolation endotheca (2), keeps apart overcoat (1) and keeps apart endotheca (2) and passes through screwed connection, its characterized in that: guide cylinders (11) are symmetrically welded on the left side and the right side of the isolating outer sleeve (1), an isolating inner sleeve (2) is inserted in the isolating outer sleeve (1), a limiting sleeve (21) is welded on the inner side of the isolating inner sleeve (2), guide rods (22) are symmetrically inserted and installed on the left side and the right side of the isolating inner sleeve (2), an output shaft (3) is arranged in the isolating inner sleeve (2), a cylindrical surface of the output shaft (3) is fixedly connected with an inner magnetic rotor (31) through a pin key, a first thrust bearing (32) and a second thrust bearing (33) are respectively installed at two ends of the inner magnetic rotor (31) on the output shaft (3), a heat dissipation cover (4) is connected to one end of the isolating inner sleeve (2) through a screw, a sealing mechanism is arranged between the heat dissipation cover (4) and the isolating inner sleeve (2), a limiting mechanism is arranged in the sealing mechanism, heat dissipation fins (41) are welded on the outer side of the heat dissipation cover (4) in a circumferential array manner, guide holes (42) are symmetrically formed on the left side and the right side of the heat dissipation cover (4), the guide rods (22) are welded with the isolating inner sleeve (2), one end of the guide rods (22) is connected with the inner sleeve (11), and the inner side of the heat dissipation cover (42) in an insertion groove (43) is formed on the inner side of the guide rods, a clamping block (44) is welded in the groove (43), and a fixing sleeve (5) is welded on the inner side of the heat dissipation cover (4).

2. The magnetic drive pump with the isolation sleeve of claim 1, wherein: first footstep bearing (32) and second footstep bearing (33) symmetric distribution are at the both ends of interior magnetic rotor (31), first footstep bearing (32) and stop collar (21) normal running fit, second footstep bearing (33) and fixed sleeve (5) normal running fit.

3. The magnetic drive pump with the isolation sleeve of claim 1, wherein: the output shaft (3) penetrates through the fixed sleeve (5) to be arranged, and the inner magnetic rotor (31) is arranged in the isolation inner sleeve (2).

4. The magnetic drive pump with the isolation sleeve of claim 1, wherein: the sealing mechanism comprises: first sealing washer (6), second sealing washer (61), extrusion circle (62), third sealing washer (8), ring channel (81) and rectangle through-hole (82), the one end of keeping apart endotheca (2) is equipped with first sealing washer (6), second sealing washer (61) and third sealing washer (8) from inside to outside in proper order the cover, be provided with extrusion circle (62) between first sealing washer (6) and second sealing washer (61), ring channel (81) have been seted up to the side of third sealing washer (8), rectangle through-hole (82) have been seted up to the inboard one-tenth circumference array of ring channel (81).

5. The magnetic drive pump with the isolation sleeve of claim 4, wherein: stop gear is including: the ring-shaped gasket comprises a ring-shaped gasket (7) and U-shaped seats (71), wherein the ring-shaped gasket (7) is arranged in the ring-shaped groove (81), and the U-shaped seats (71) are bonded on the side surface of the ring-shaped gasket (7) in a circumferential array mode.

6. The magnetic drive pump with the isolation sleeve of claim 5, wherein: the U-shaped seat (71) penetrates through the rectangular through hole (82), one end of the U-shaped seat (71) is connected with the groove (43) in an inserting mode, and the U-shaped seat (71) is connected with the clamping block (44) in a clamping mode.

7. The magnetic drive pump with the isolation sleeve of claim 4, wherein: the side surface of the second sealing ring (61) is convexly provided with an annular plate, the annular plate is inserted into the annular groove (81), and the annular plate is contacted with the annular gasket (7).