CN217354778U - Magnetic pump structure capable of reducing abrasion - Google Patents
Magnetic pump structure capable of reducing abrasion Download PDFInfo
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- CN217354778U CN217354778U CN202220150643.4U CN202220150643U CN217354778U CN 217354778 U CN217354778 U CN 217354778U CN 202220150643 U CN202220150643 U CN 202220150643U CN 217354778 U CN217354778 U CN 217354778U
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Abstract
The utility model relates to a reduce magnetic drive pump structure of wearing and tearing, including the back lid, the hollow shaft and with the back shroud, be equipped with the external screw thread on the hollow shaft length direction in proper order, first keyway, the second keyway, third keyway and shaft shoulder, the hollow shaft is worn to be equipped with first friction in proper order from bottom to top and is vice, interior magnetic rotor is vice with the second friction, interior magnetic rotor's inner wall is equipped with first logical groove, first logical groove both ends punishment do not is equipped with first counter bore and second counter bore, the external screw thread sets up the both ends department at the hollow shaft respectively with the shaft shoulder, the external screw thread is close to the back shroud setting, the hollow shaft passes the back shroud setting, and with back lid clearance fit. The magnetic pump structure capable of reducing abrasion has the advantages of reducing noise, preventing seizure, being convenient to install, prolonging service life and the like.
Description
Technical Field
The utility model relates to a magnetic drive pump technical field, especially a magnetic drive pump structure of reduction wearing and tearing.
Background
At present, the transmission shaft is commonly supported by rolling support and sliding support, the rolling support, such as a rolling bearing, is supported by a bearing seat, the abrasion of a ball is accelerated in the rotating process, and the noise is large. Sliding supports, such as sliding bearings, require the use of lubricating oil, and the sliding friction heats up quickly, reducing service life. Meanwhile, the installation of the bearing needs to be carried out by crimping by using a press, so that the installation process is increased, and the production cost is increased.
Therefore, a magnetic pump structure capable of reducing abrasion is developed to solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose is in order to overcome prior art not enough and provide a reduce magnetic drive pump structure of wearing and tearing, has the noise reduction, prevents to sting, and the installation of being convenient for improves advantages such as life-span.
In order to achieve the purpose, the utility model adopts the technical proposal that: the utility model provides a magnetic drive pump structure of wearing and tearing reduces, including a back lid, a hollow shaft and with a back shroud of back lid block, be equipped with an external screw thread, a first keyway, a second keyway, a third keyway and a shaft shoulder on the hollow shaft length direction in proper order, the hollow shaft is worn to be equipped with a first friction pair, an interior magnetic rotor and a second friction pair from bottom to top in proper order, interior magnetic rotor's inner wall is equipped with a first logical groove, first logical groove both ends punishment do not is equipped with a first counter bore and a second counter bore, the external screw thread with the shaft shoulder sets up respectively the both ends department of hollow shaft, the external screw thread is close to the back shroud sets up, the hollow shaft passes the back shroud sets up to with back lid clearance fit.
Preferably, the first friction pair comprises a cylindrical first shaft core bushing, a cylindrical first shaft sleeve and a cylindrical first thrust ring, a second through groove with uniformly distributed circumference is formed in the inner wall of the first shaft sleeve, a third through groove with uniformly distributed circumference is formed in one end of the first shaft sleeve, the second through groove is slidably connected with the outer wall of the first shaft core bushing, and the third through groove is slidably connected with one end face of the first thrust ring.
Preferably, the first thrust ring and the first shaft center bushing are sequentially pressed between the second counter bore and the shaft shoulder in a pressing mode, the first thrust ring is provided with a fourth key groove, the first shaft center bushing is provided with a fifth key groove, and the fourth key groove, the fifth key groove and the third key groove are connected through a first flat key.
Preferably, the second friction pair includes a second thrust ring, a second axial bushing and a second axial bushing, the inner wall of the second axial bushing is provided with a fourth through groove, and one end of the second axial bushing is provided with fifth through grooves which are uniformly distributed, the fourth through groove is connected with the outer wall of the second axial bushing in a sliding manner, one end of the second thrust ring is abutted to the first counter bore, and the other end of the second thrust ring is respectively abutted to the second axial bushing and the fifth through groove.
Preferably, a third counter bore is arranged at the center of the rear cover plate, and one end of the second shaft receiver abuts against the third counter bore.
Preferably, the second thrust ring is provided with a sixth key groove, the second hub bushing is provided with a seventh key groove, and the sixth key groove, the seventh key groove, the first through groove and the second key groove are connected through a second flat key.
Preferably, the first key groove is connected to the impeller through a third flat key, and the external thread is in pressure joint with the impeller through a nut.
Preferably, a blind hole is formed in the center of the bottom end of the rear cover, a stepped hole is formed in the top end of the blind hole 91, a pin hole is formed in the stepped hole, and the pin hole is connected with the first shaft through a pin shaft.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:
the magnetic pump structure for reducing abrasion of the utility model has the advantages that through the arrangement of the first friction pair and the second friction pair, the first shaft is respectively formed with the first thrust ring and the first shaft center bushing into an L-shaped friction section, the second shaft is respectively formed with the second thrust ring and the second shaft center bushing into an L-shaped friction section, and the noise is reduced through the sliding friction between SSIC silicon carbide; the friction section is provided with a through groove to prevent friction seizure; the axis bushing, the thrust ring and the hollow shaft are connected through a flat key, so that the installation is convenient; the hollow shaft and the friction pairs at the two ends are in contact with fluid, self-lubricating and cooling are realized, and the service life of the friction pairs is prolonged.
Drawings
Fig. 1 is a front view of the magnetic pump structure for reducing wear of the present invention.
Fig. 2 is a cross-sectional view of the utility model at a-a in fig. 1.
Fig. 3 is a schematic structural diagram of the friction pair connection of the present invention.
Fig. 4 is a cross-sectional view taken along line B-B of fig. 3 according to the present invention.
Wherein: 10. a hollow shaft; 11. a shaft shoulder; 12. a first keyway; 13. a second keyway; 14. a third keyway; 15. an external thread; 16. an inner magnetic rotor; 17. a first through groove; 18. a first counterbore; 19. a second counterbore;
20. a second hub bushing; 21. a seventh keyway;
30. a second shaft receiver; 31. a fifth through groove; 32. a fourth through groove;
40. a second thrust ring; 41. a sixth keyway;
50. a first thrust ring; 51. a fourth keyway;
60. a first shaft receiver; 61. a third through groove; 62. a second through groove;
70. a first hub bushing; 71. a fifth keyway;
80. a rear cover plate; 81. a third counterbore;
90. a rear cover; 91. blind holes; 92. a stepped bore; 93. a pin hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 4, a magnetic pump structure for reducing wear includes a back cover 90 having a zigzag structure, a hollow shaft 10, and a back cover plate 80 engaged with the back cover 90. A third counter bore 81 is provided at the center of the rear cover plate 80. One end of the second shaft receiver 30 abuts the third counterbore 81. The hollow shaft 10 is sequentially provided with a first friction pair, an inner magnetic rotor 16 and a second friction pair from bottom to top. The bottom center of the rear cover 90 is provided with a blind hole 91.
An external thread 15, a first key groove 12, a second key groove 13, a third key groove 14 and a shaft shoulder 11 are sequentially arranged on the hollow shaft 10 in the length direction. The first key way 12 is connected to the impeller by a third flat key. External threads 15 are provided at both ends of the hollow shaft 10, respectively, with the shoulders 11, and the external threads 15 are provided near the rear cover plate 80. The external thread 15 is pressed against the impeller by a nut. The impeller abuts against the second hub bush 20. When the nut locks one end of the hollow shaft 10, a gap is formed between the shaft shoulder 11 and the blind hole 91, which is convenient for the fluid in the hollow shaft 10 to circulate at two ends of the hollow shaft 10.
The inner wall of the inner magnetic rotor 16 is provided with a first through groove, and both ends of the first through groove 17 are respectively provided with a first counter bore 18 and a second counter bore 19. The second thrust ring 40 abuts the first counterbore 18. The first thrust ring 50 abuts the second counterbore 19. The hollow shaft 10 is arranged through the rear cover plate 80, and the hollow shaft 10 is clearance-fitted with the rear cover 90.
The first friction pair includes a cylindrical first hub bushing 70, a cylindrical first bearing 60, and a cylindrical first thrust ring 50. The inner wall of the first shaft receiver 60 is provided with second through grooves 62 which are uniformly distributed in the circumference, one end of the first shaft receiver is provided with third through grooves 61 which are uniformly distributed in the circumference, the second through grooves 62 are in sliding connection with the outer wall of the first shaft center bushing 70, and the third through grooves 61 are in sliding connection with one end face of the first thrust ring 50. The blind hole 91 is in clearance fit with the shoulder 11. The top end of the blind hole 91 is provided with a stepped hole 92, the stepped hole 92 is provided with a pin hole 93, and the pin hole 93 is connected with the first shaft receiver 60 through a pin shaft.
The first thrust ring 50 and the first axle center bushing 70 are sequentially pressed between the second counter bore 19 and the axle shoulder 11. The first thrust ring 50 is provided with a fourth keyway 51 and the first spindle bush 70 is provided with a fifth keyway 71. The fourth key groove 51, the fifth key groove 71 and the third key groove 14 are connected by a first flat key.
The second friction pair includes a second thrust ring 40, a second hub bushing 20 and a second bearing 30. The second thrust ring 40 is provided with a sixth keyway 41. In order to reduce cost, it is preferable that the second thrust ring 40 and the first thrust ring 50 be made of SSIC silicon carbide and have the same structure and size. The second hub insert 20, which is SSIC silicon carbide, is identical in structure and size to the first hub insert 70. The second shaft receiver 30 made of SSIC silicon carbide has the same structure and size as the first shaft receiver 60. The second hub bushing 20 is provided with a seventh key slot 21. The inner wall of the second bearing 30 is provided with a fourth through groove 32, and one end of the second bearing is provided with evenly distributed fifth through grooves 31, the fourth through groove 32 is connected with the outer wall of the second spindle bushing 20 in a sliding mode, one end of the second thrust ring 40 is abutted to the first counter bore 18, and the other end of the second thrust ring is abutted to the second spindle bushing 20 and the fifth through grooves 31 respectively. The sixth key groove 41, the seventh key groove 21, the first through groove 17 and the second key groove 13 are connected by a second flat key.
The inner magnetic rotor 16 is driven to rotate by the outer magnetic rotor, so as to drive the hollow shaft 10 to rotate, meanwhile, the first shaft bearing 60 rubs against the first thrust ring 50 and the first shaft core bushing 70, the second shaft bearing 30 rubs against the second thrust ring 40 and the second shaft core bushing 20, and the shaft extension end of the hollow shaft 10 is fixed with an impeller which extracts liquid.
The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
Claims (8)
1. The utility model provides a reduce magnetic drive pump structure of wearing and tearing which characterized in that: comprises a rear cover (90), a hollow shaft (10) and a rear cover plate (80) clamped with the rear cover (90), wherein an external thread (15), a first key groove (12), a second key groove (13), a third key groove (14) and a shaft shoulder (11) are sequentially arranged on the hollow shaft (10) in the length direction, a first friction pair, an internal magnetic rotor (16) and a second friction pair are sequentially arranged on the hollow shaft (10) from bottom to top in a penetrating manner, a first through groove is arranged on the inner wall of the internal magnetic rotor (16), a first counter bore (18) and a second counter bore (19) are respectively arranged at the two ends of the first through groove (17), the external thread (15) and the shaft shoulder (11) are respectively arranged at the two ends of the hollow shaft (10), the external thread (15) is arranged close to the rear cover plate (80), and the hollow shaft (10) passes through the rear cover plate (80), and is clearance fitted with the rear cover (90).
2. The magnetic pump structure for reducing the abrasion according to claim 1, wherein the first friction pair comprises a cylindrical first axle sleeve (70), a cylindrical first axle bearing (60) and a cylindrical first thrust ring (50), the inner wall of the first axle bearing (60) is provided with second through grooves (62) which are uniformly distributed in the circumference, one end of the first axle bearing is provided with third through grooves (61) which are uniformly distributed in the circumference, the second through grooves (62) are slidably connected with the outer wall of the first axle sleeve (70), and the third through grooves (61) are slidably connected with one end face of the first thrust ring (50).
3. The magnetic pump structure for reducing abrasion according to claim 2, wherein the first thrust ring (50) and the first axial bush (70) are sequentially pressed between the second counter bore (19) and the shaft shoulder (11), the first thrust ring (50) is provided with a fourth key slot (51), the first axial bush (70) is provided with a fifth key slot (71), and the fourth key slot (51), the fifth key slot (71) and the third key slot (14) are connected through a first flat key.
4. The magnetic pump structure for reducing the wear of claim 1, wherein the second friction pair comprises a second thrust ring (40), a second spindle bushing (20) and a second spindle bushing (30), the inner wall of the second spindle bushing (30) is provided with a fourth through groove (32), one end of the second spindle bushing is provided with a uniformly distributed fifth through groove (31), the fourth through groove (32) is connected with the outer wall of the second spindle bushing (20) in a sliding manner, one end of the second thrust ring (40) abuts against the first counterbore (18), and the other end of the second thrust ring abuts against the second spindle bushing (20) and the fifth through groove (31).
5. The magnetic pump structure for reducing wear according to claim 4, characterized in that a third counterbore (81) is provided at the center of the back cover plate (80), and one end of the second shaft receiver (30) abuts against the third counterbore (81).
6. A magnetic pump structure with reduced wear according to claim 4, characterized in that the second thrust ring (40) is provided with a sixth keyway (41), the second hub bushing (20) is provided with a seventh keyway (21), and the sixth keyway (41), the seventh keyway (21), the first through slot (17) and the second keyway (13) are connected by a second flat key.
7. A magnetic pump structure with reduced wear according to claim 4, characterized in that the first key way (12) is connected to the impeller by a third flat key, the external thread (15) being in pressure contact with the impeller by a nut.
8. The magnetic pump structure for reducing the abrasion according to claim 2, wherein a blind hole (91) is formed in the center of the bottom end of the rear cover (90), a stepped hole (92) is formed in the top end of the blind hole (91), the stepped hole (92) is provided with a pin hole (93), and the pin hole (93) is connected with the first shaft receiver (60) through a pin shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220150643.4U CN217354778U (en) | 2022-01-20 | 2022-01-20 | Magnetic pump structure capable of reducing abrasion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220150643.4U CN217354778U (en) | 2022-01-20 | 2022-01-20 | Magnetic pump structure capable of reducing abrasion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217354778U true CN217354778U (en) | 2022-09-02 |
Family
ID=83043432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220150643.4U Active CN217354778U (en) | 2022-01-20 | 2022-01-20 | Magnetic pump structure capable of reducing abrasion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217354778U (en) |
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2022
- 2022-01-20 CN CN202220150643.4U patent/CN217354778U/en active Active
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