CN210565294U - Novel magnetic drive pump bearing connection structure - Google Patents
Novel magnetic drive pump bearing connection structure Download PDFInfo
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- CN210565294U CN210565294U CN201921042218.8U CN201921042218U CN210565294U CN 210565294 U CN210565294 U CN 210565294U CN 201921042218 U CN201921042218 U CN 201921042218U CN 210565294 U CN210565294 U CN 210565294U
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- transmission shaft
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- bearing
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Abstract
The utility model discloses a novel magnetic drive pump bearing connection structure aims at solving the not good not enough of wear-resisting and self-lubricating performance of magnetic drive pump bearing. The utility model discloses an including pump cover, transmission shaft, be equipped with the mounting hole on the pump cover, the slide bearing of fastening installation polyether ether ketone material in the mounting hole, the transmission shaft is in the same place with slide bearing adaptation suit, is equipped with the helicla flute on the slide bearing inner wall, is equipped with the straight flute that the axial set up on the slide bearing inner wall, and helicla flute and straight flute all extend to the slide bearing both ends, and the equipartition is equipped with the radial circulation groove that sets up of a plurality of on the slide bearing rear end face, circulation groove. The magnetic pump bearing of the novel magnetic pump bearing connecting structure has good wear resistance and self-lubricating property and long service life.
Description
Technical Field
The utility model relates to a magnetic drive pump, more specifically say, it relates to a novel magnetic drive pump bearing connection structure.
Background
When the motor drives the outer magnetic rotor to rotate, the magnetic field can penetrate through the air gap and nonmagnetic substances to drive the inner magnetic rotor connected with the impeller to synchronously rotate, so that the non-contact synchronous transmission of power is realized, and the dynamic sealing structure easy to leak is converted into a static sealing structure with zero leakage. The wear resistance and self-lubricity of a plurality of magnetic pump bearings used at present are all insufficient, so that the normal operation time of the magnetic pump is shortened, the overhaul frequency is increased, and the inconvenience in use of a customer is caused.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes the not good not enough of magnetic pump bearing wear-resisting and self-lubricating property provides a novel magnetic pump bearing connection structure, and magnetic pump bearing is wear-resisting and self-lubricating property is good, long service life.
In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides a novel magnetic drive pump bearing connection structure, includes pump cover, transmission shaft, is equipped with the mounting hole on the pump cover, and the slide bearing of fastening installation polyether ether ketone material in the mounting hole, transmission shaft and slide bearing adaptation suit are in the same place, are equipped with the helicla flute on the slide bearing inner wall, are equipped with the straight flute that the axial set up on the slide bearing inner wall, and helicla flute and straight flute all extend to the slide bearing both ends, and the equipartition is equipped with the radial circulation groove that sets up of a plurality of on the slide bearing rear end face.
The sliding bearing made of the polyetheretherketone material has excellent wear resistance, creep resistance and cutting resistance, and has high stability at high temperature. High load bearing surface, extremely resistant to pressure induced creep and flow. And has excellent chemical resistance and excellent resistance to acid, alkali, hydrocarbon and steam. The spiral groove and the straight groove are formed in the inner wall of the sliding bearing, self-lubrication of the bearing is facilitated, circulation of circulating cooling media is improved, cooling of the transmission shaft is increased, the phenomenon of shaft breakage caused by overheating of the transmission shaft in long-time use is prevented, and the service life of the transmission shaft is prolonged. The magnetic pump bearing of the novel magnetic pump bearing connecting structure has good wear resistance and self-lubricating property and long service life.
Preferably, the pump cover is uniformly provided with a plurality of cooling holes, the axes of the cooling holes are parallel to the axes of the mounting holes, and the front end surface of the pump cover, the inner walls of the cooling holes and the inner walls of the mounting holes are lined with anti-corrosion linings. The cooling holes facilitate the circulation flow of cooling media and increase the cooling effect. The corrosion resistance of the pump cover is improved by the arrangement of the corrosion-resistant lining layer.
Preferably, the rear end of the sliding bearing is provided with a positioning ring, the positioning ring protrudes out of the outer wall of the sliding bearing, the outer edge of the section of the sliding bearing is in a waist shape, the mounting hole is in a waist shape matched with the sliding bearing, the rear end of the mounting hole is provided with a positioning ring groove, and the positioning ring is matched and mounted in the positioning ring groove. The outer edge of the cross section of the sliding bearing is in a waist-round shape, so that the sliding bearing is prevented from rotating after being installed in the installation hole, and the positioning and locking effect is good. The positioning ring is installed at the positioning ring groove in a matching mode, and positioning is reliable.
Preferably, the rear end of the pump cover is tightly connected with the rear cover, the front end of the transmission shaft extends out of the front end of the pump cover, the rear end of the transmission shaft is arranged in the rear cover, the rear end of the transmission shaft is tightly connected with the magnetic steel assembly, the magnetic steel assembly can rotate in the rear cover, and the front end of the transmission shaft is connected with the impeller.
The pump cover and the rear cover are connected together to form a closed structure, and a cooling medium circularly flows in the closed structure, so that the cooling effect is good. The magnetic field of the external coil acts on the magnetic steel assembly, so that the transmission shaft is driven to rotate, no contact is generated in the rotating process, and the resistance is small.
Preferably, the protective cover is connected to the outer portion of the rear cover, the inner wall of the protective cover is attached to the outer wall of the rear cover, the connecting ring is fixedly connected to the rear end of the pump cover, and the connecting ring is pressed on the edge of the rear cover and the edge of the protective cover. The protective cover plays a good role in protecting the rear cover.
Preferably, the rear end in the rear cover is provided with a positioning sleeve, the rear end of the transmission shaft is arranged in the positioning sleeve, and a plurality of liquid passing grooves axially arranged are uniformly distributed on the inner wall of the positioning sleeve. The positioning sleeve has good positioning effect on the transmission shaft, so that the transmission shaft can rotate more stably and reliably. The liquid passing groove is beneficial to the flowing of cooling media, and the cooling effect on the transmission shaft is improved.
Preferably, a water through hole is formed in the transmission shaft, the water through hole penetrates through the front end and the rear end of the transmission shaft, and a groove hole communicated with the water through hole is formed in the impeller. The inside limbers that sets up of transmission shaft makes the cooling medium stream pass through transmission shaft inside, has improved the cooling effect to the transmission shaft greatly.
Compared with the prior art, the beneficial effects of the utility model are that: the magnetic pump bearing of the novel magnetic pump bearing connecting structure has good wear resistance and self-lubricating property and long service life.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is an end view of the sliding bearing of the present invention;
fig. 3 is a cross-sectional view of the sliding bearing of the present invention;
in the figure: 1. the device comprises a pump cover, 2, a transmission shaft, 3, a mounting hole, 4, a sliding bearing, 5, a spiral groove, 6, a straight groove, 7, a circulation groove, 8, a cooling hole, 9, an anti-corrosion lining layer, 10, a positioning ring, 11, a positioning ring groove, 12, a rear cover, 13, a magnetic steel assembly, 14, an impeller, 15, a protective cover, 16, a connecting ring, 17, a positioning sleeve, 18, a liquid circulation groove, 19, a water circulation hole, 20 and a groove hole.
Detailed Description
The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:
example (b): the utility model provides a novel magnetic drive pump bearing connection structure (see attached figure 1 to attached figure 3), including pump cover 1, transmission shaft 2, be equipped with mounting hole 3 on the pump cover, the slide bearing 4 of fastening installation polyether ether ketone material in the mounting hole, the transmission shaft is in the same place with slide bearing adaptation suit, be equipped with helicla flute 5 on the slide bearing inner wall, be equipped with the straight flute 6 of axial setting on the slide bearing inner wall, helicla flute and straight flute all extend to the slide bearing both ends, the equipartition is equipped with the circulation groove 7 of the radial setting of a plurality of on the slide bearing rear end face, circulation groove intercommunication slide. A plurality of cooling holes 8 are uniformly distributed on the pump cover, the axes of the cooling holes are parallel to the axes of the mounting holes, and anticorrosion linings 9 are lined on the front end surface of the pump cover, the inner walls of the cooling holes and the inner walls of the mounting holes and are fluoroplastic layers. The sliding bearing rear end is equipped with holding ring 10, and the holding ring protrusion sliding bearing outer wall, sliding bearing cross-section outward flange are oval, and the mounting hole is the oval with sliding bearing adaptation, and the mounting hole rear end is equipped with positioning ring groove 11, and the holding ring adaptation is installed in the holding ring trench position. The rear end of the pump cover is tightly connected with a rear cover 12, the front end of a transmission shaft extends out of the front end of the pump cover, the rear end of the transmission shaft is arranged in the rear cover, the rear end of the transmission shaft is tightly connected with a magnetic steel assembly 13, the magnetic steel assembly can rotate in the rear cover, and the front end of the transmission shaft is connected with an impeller 14. The protective cover 15 is connected to the outer portion of the rear cover, the inner wall of the protective cover is attached to the outer wall of the rear cover, the connecting ring 16 is fixedly connected to the rear end of the pump cover, the connecting ring is connected with the pump cover through screws, the connecting ring is pressed on the edge of the rear cover and the protective cover, and a sealing gasket is arranged between the rear cover and the pump cover. A positioning sleeve 17 is arranged at the rear end in the rear cover, the rear end of the transmission shaft is arranged in the positioning sleeve, and a plurality of liquid passing grooves 18 which are axially arranged are uniformly distributed on the inner wall of the positioning sleeve. The transmission shaft is internally provided with a water through hole 19 which penetrates through the front end and the rear end of the transmission shaft, and the impeller is provided with a slot hole 20 communicated with the water through hole.
The sliding bearing made of the polyetheretherketone material has excellent wear resistance, creep resistance and cutting resistance, and has high stability at high temperature. High load bearing surface, extremely resistant to pressure induced creep and flow. And has excellent chemical resistance and excellent resistance to acid, alkali, hydrocarbon and steam. The spiral groove and the straight groove are formed in the inner wall of the sliding bearing, the circulation of circulating cooling media is improved, cooling of the transmission shaft is improved, the phenomenon of shaft breakage caused by long-time use and overheating of the transmission shaft is prevented, and the service life of the transmission shaft is prolonged. The magnetic pump bearing of the novel magnetic pump bearing connecting structure has good wear resistance and self-lubricating property and long service life.
The above-described embodiments are merely preferred and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (5)
1. A novel magnetic pump bearing connecting structure is characterized by comprising a pump cover and a transmission shaft, wherein the pump cover is provided with a mounting hole, a sliding bearing made of polyether-ether-ketone material is fixedly mounted in the mounting hole, the transmission shaft and the sliding bearing are fittingly sleeved together, the inner wall of the sliding bearing is provided with a spiral groove, the inner wall of the sliding bearing is provided with a plurality of axially arranged straight grooves, the spiral groove and the straight grooves both extend to two ends of the sliding bearing, the rear end surface of the sliding bearing is uniformly provided with a plurality of radially arranged circulation grooves, and the circulation grooves are communicated with; the rear end of the sliding bearing is provided with a positioning ring, the positioning ring protrudes out of the outer wall of the sliding bearing, the outer edge of the section of the sliding bearing is in a waist shape, the mounting hole is in a waist shape matched with the sliding bearing, the rear end of the mounting hole is provided with a positioning ring groove, and the positioning ring is matched and mounted in the positioning ring groove; the rear end of the pump cover is tightly connected with the rear cover, the front end of the transmission shaft extends out of the front end of the pump cover, and the rear end of the transmission shaft is arranged in the rear cover; the rear cover is externally connected with a protective cover, the inner wall of the protective cover is attached to the outer wall of the rear cover, the rear end of the pump cover is fixedly connected with a connecting ring, and the connecting ring is pressed on the edge of the rear cover and the protective cover.
2. The novel magnetic pump bearing connection structure of claim 1, wherein the pump cover is uniformly provided with a plurality of cooling holes, the axes of the cooling holes are parallel to the axes of the mounting holes, and the front end surface of the pump cover, the inner walls of the cooling holes and the inner walls of the mounting holes are lined with anti-corrosion linings.
3. The novel magnetic pump bearing connection structure as claimed in claim 1 or 2, wherein the rear end of the transmission shaft is fixedly connected with a magnetic steel assembly, the magnetic steel assembly can rotate in the rear cover, and the front end of the transmission shaft is connected with the impeller.
4. The novel magnetic pump bearing connection structure as claimed in claim 3, wherein a positioning sleeve is installed at the rear end of the rear cover, the rear end of the transmission shaft is installed in the positioning sleeve, and a plurality of axially arranged liquid passing grooves are uniformly distributed on the inner wall of the positioning sleeve.
5. The novel magnetic pump bearing connection structure as claimed in claim 3, wherein a water passage hole is formed in the drive shaft, the water passage hole extends through the front and rear ends of the drive shaft, and the impeller is provided with a groove hole communicating with the water passage hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921042218.8U CN210565294U (en) | 2019-07-04 | 2019-07-04 | Novel magnetic drive pump bearing connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921042218.8U CN210565294U (en) | 2019-07-04 | 2019-07-04 | Novel magnetic drive pump bearing connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210565294U true CN210565294U (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921042218.8U Active CN210565294U (en) | 2019-07-04 | 2019-07-04 | Novel magnetic drive pump bearing connection structure |
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| CN (1) | CN210565294U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114123616A (en) * | 2021-12-22 | 2022-03-01 | 湖南耐普泵业股份有限公司 | Wet-type motor bearing cooling structure |
-
2019
- 2019-07-04 CN CN201921042218.8U patent/CN210565294U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114123616A (en) * | 2021-12-22 | 2022-03-01 | 湖南耐普泵业股份有限公司 | Wet-type motor bearing cooling structure |
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