CN216407248U - Under-liquid pump bearing connection structure - Google Patents
Under-liquid pump bearing connection structure Download PDFInfo
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- CN216407248U CN216407248U CN202121749329.XU CN202121749329U CN216407248U CN 216407248 U CN216407248 U CN 216407248U CN 202121749329 U CN202121749329 U CN 202121749329U CN 216407248 U CN216407248 U CN 216407248U
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- bearing
- connecting frame
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- angular contact
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Abstract
The utility model relates to a submerged pump lower bearing connection structure, which comprises a connecting frame, a bearing body, a double-row angular contact ball bearing, a bearing gland and a pump shaft, wherein the double-row angular contact ball bearing is arranged in an inner cavity of the bearing body and sleeved on the pump shaft, the bearing gland is arranged above the double-row angular contact ball bearing, the connecting frame is arranged on the bearing body, the bearing body and the connecting frame are connected through a screw hole arranged on the connecting frame and a screw hole arranged on the bearing body by a bolt, an O-shaped ring groove is arranged on the bottom surface of the connecting frame, a spigot is arranged on the bottom surface of the connecting frame in the O-shaped ring groove, the upper plane of the spigot is abutted against the bearing gland, the bottom surface of the connecting frame is abutted against the upper surface of the bearing body, and an O-shaped ring is arranged in the O-shaped ring groove. The bearing gland has the advantages that the bearing gland adopts a double-positioning spigot structure, the outer circle of the bearing gland is not provided with a screw hole, the diameter of the outer circle is reduced, and the casting cost is reduced. The bearing gland is positioned by the connecting frame, and the connecting frame and the pump cover are compressed together, so that the axial length is reduced.
Description
Technical Field
The utility model relates to a bearing connecting structure, in particular to a bearing connecting structure under a submerged pump.
Background
The structure of the lower bearing of the conventional submerged pump is shown in figure 1, a connecting frame 21, a bearing gland 22, a bearing body 23, a 24 double-row angular contact ball bearing, a 25O-shaped ring and a 26O-shaped ring, wherein the lower end face of the connecting frame is abutted against the upper end of the bearing gland; the lower end surface of the bearing gland is abutted against the upper end surface of the bearing body; the upper end surface and the lower end surface of the bearing gland are provided with outer rabbets, and the outer rings at the rabbets are provided with O-shaped ring grooves; the outer rabbets of the upper end surface and the lower end surface of the bearing pressure-bearing cover are respectively embedded into the connecting frame and the bearing body; the outer ring of the lower end surface of the connecting frame is provided with a screw hole; the outer ring of the bearing gland is provided with a screw hole; the outer ring of the upper end surface of the bearing body is provided with a threaded hole; the connecting frame, the bearing gland and the bearing body are connected together through screws; the sealing structure is composed of two O-shaped rings; the double-row angular contact ball bearing is arranged in the bearing body and is propped against and fixed with the lower spigot plane of the bearing gland. Because two 0-shaped rings exist, the sealing structure has high probability of water leakage, and the water pump is shut down due to failure of the bearing after water leakage.
Disclosure of Invention
The utility model aims to solve the problem that a conventional submerged pump lower bearing structure in the prior art is easy to leak, and provides a submerged pump lower bearing connecting structure. The utility model designs a submerged pump lower bearing connection structure, which comprises a connecting frame, a bearing body, a double-row angular contact ball bearing, a bearing gland and a pump shaft, and is characterized in that: the inner cavity of the bearing body is internally provided with a double-row angular contact ball bearing, the double-row angular contact ball bearing is sleeved on the pump shaft, a bearing gland is arranged above the double-row angular contact ball bearing, the bearing body is provided with a connecting frame, the bearing body and the connecting frame are connected through a screw hole arranged on the connecting frame and a screw hole arranged on the bearing body by a bolt, an inner-sunken O-shaped ring groove is arranged on the bottom surface of the connecting frame, a spigot is arranged on the bottom surface of the connecting frame in the O-shaped ring groove, the upper plane of the spigot is abutted against the bearing gland, the bottom surface of the connecting frame is abutted against the upper surface of the bearing body, and an O-shaped ring is arranged in the O-shaped ring groove. An inner spigot is arranged below the bearing gland, and the upper plane of the inner spigot is abutted against the upper end face of the double-row angular contact ball bearing. The length of the cavity in the bearing body is 5mm shorter than the height of the bearing. The excircle of the bearing gland is propped against the periphery of the spigot of the connecting frame. The inner spigot of the bearing gland is abutted against the outer circle of the double-row angular contact ball bearing. The utility model has the advantage of changing the style of the bearing gland. The bearing gland adopts two location tang structures, bearing gland excircle location link span, bearing gland inner spigot location bearing, indirect location bearing body. The excircle of the bearing gland is not provided with a screw hole any more, the diameter of the excircle is reduced, and the cost of the casting is reduced. The bearing gland is positioned by the connecting frame, and the connecting frame and the pump cover are compressed together, so that the axial length is reduced. The bottom of the connecting frame is provided with an O-shaped ring groove, and an O-shaped ring is placed in the O-shaped ring groove. The connecting frame, the bearing gland and the pump cover share one O-shaped ring in a sealing mode, and leakage hidden dangers are reduced.
Drawings
Figure 1 is a cross-sectional view of a prior art structure,
figure 2 is a cross-sectional view of the structure of the present invention,
figure 3 is a cross-sectional view of the inventive connector frame structure,
figure 4 is a cross-sectional view of the bearing body structure of the present invention,
FIG. 5 is a sectional view of the bearing cover structure of the present invention.
Detailed Description
A bearing draw bail under submerged pump in the figure, including link, the bearing body, double row angular contact ball bearing, bearing cover, pump shaft, its characterized in that: the inner cavity of the bearing body is internally provided with a double-row angular contact ball bearing, the double-row angular contact ball bearing is sleeved on the pump shaft, a bearing gland is arranged above the double-row angular contact ball bearing, the bearing body is provided with a connecting frame, the bearing body and the connecting frame are connected through a screw hole arranged on the connecting frame and a screw hole arranged on the bearing body by a bolt, an inner-sunken O-shaped ring groove is arranged on the bottom surface of the connecting frame, a spigot is arranged on the bottom surface of the connecting frame in the O-shaped ring groove, the upper plane of the spigot is abutted against the bearing gland, the bottom surface of the connecting frame is abutted against the upper surface of the bearing body, and an O-shaped ring is arranged in the O-shaped ring groove. An inner spigot is arranged below the bearing gland, and the upper plane of the inner spigot is abutted against the upper end face of the double-row angular contact ball bearing. The length of the cavity in the bearing body is 5mm shorter than the height of the bearing. The excircle of the bearing gland is propped against the periphery of the spigot of the connecting frame. The inner spigot of the bearing gland is abutted against the outer circle of the double-row angular contact ball bearing.
Because the connecting frame is provided with the O-shaped ring groove, the connecting frame, the bearing gland and the bearing body share one O-shaped ring. When the structure is immersed in water, 1O-shaped ring, namely 1 leakage point, reduces the leakage hidden trouble compared with the original structure. And the length of the cavity in the bearing body is 5mm shorter than the height of the double-row angular contact ball bearing. After the double-row angular contact ball bearing is arranged in the bearing body, 5mm of the double-row angular contact ball bearing is exposed out of the upper plane of the bearing body, and the 5mm is used for assembling a bearing gland. The bearing gland adopts a double-positioning spigot structure, the excircle of the bearing gland is provided with a positioning connecting frame, the inner spigot of the bearing gland is provided with a positioning bearing, and the bearing body is indirectly positioned. The installation sequence is as follows: bearing body, double row angular contact ball bearing, bearing gland, link. The upper plane of the bearing gland is abutted against the upper plane of the matched spigot of the connecting frame, and the lower plane of the bearing gland is abutted against the upper plane of the bearing body.
The main highlight of the utility model is the change of the style of the bearing gland. The bearing gland adopts two location tang structures, bearing gland excircle location link span, bearing gland inner spigot location bearing, indirect location bearing body. The excircle of the bearing gland is not provided with a screw hole any more, the diameter of the excircle is reduced, and the cost of the casting is reduced. The bearing gland is positioned by the connecting frame, and the connecting frame and the pump cover are compressed together, so that the axial length is reduced. The bottom of the connecting frame is provided with an O-shaped ring groove, and an O-shaped ring is placed in the O-shaped ring groove. The connecting frame, the bearing gland and the pump cover share one O-shaped ring in a sealing mode, and leakage hidden dangers are reduced.
Claims (5)
1. The utility model provides a bearing draw bail under submerged pump, includes the link, the bearing body, double row angular contact ball bearing, bearing cover, pump shaft, its characterized in that: the inner cavity of the bearing body is internally provided with a double-row angular contact ball bearing, the double-row angular contact ball bearing is sleeved on the pump shaft, a bearing gland is arranged above the double-row angular contact ball bearing, the bearing body is provided with a connecting frame, the bearing body and the connecting frame are connected through a screw hole arranged on the connecting frame and a screw hole arranged on the bearing body by a bolt, an inner-sunken O-shaped ring groove is arranged on the bottom surface of the connecting frame, a spigot is arranged on the bottom surface of the connecting frame in the O-shaped ring groove, the upper plane of the spigot is abutted against the bearing gland, the bottom surface of the connecting frame is abutted against the upper surface of the bearing body, and an O-shaped ring is arranged in the O-shaped ring groove.
2. A submersible pump lower bearing coupling arrangement according to claim 1, wherein: an inner spigot is arranged below the bearing gland, and the upper plane of the inner spigot is abutted against the upper end face of the double-row angular contact ball bearing.
3. A submersible pump lower bearing coupling arrangement according to claim 1, wherein: the length of the cavity in the bearing body is 5mm shorter than the height of the bearing.
4. A submersible pump lower bearing coupling arrangement according to claim 1, wherein: the excircle of the bearing gland is propped against the periphery of the spigot of the connecting frame.
5. A submersible pump lower bearing coupling arrangement according to claim 1, wherein: the inner spigot of the bearing gland is abutted against the outer circle of the double-row angular contact ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121749329.XU CN216407248U (en) | 2021-07-29 | 2021-07-29 | Under-liquid pump bearing connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121749329.XU CN216407248U (en) | 2021-07-29 | 2021-07-29 | Under-liquid pump bearing connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216407248U true CN216407248U (en) | 2022-04-29 |
Family
ID=81287461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121749329.XU Active CN216407248U (en) | 2021-07-29 | 2021-07-29 | Under-liquid pump bearing connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216407248U (en) |
-
2021
- 2021-07-29 CN CN202121749329.XU patent/CN216407248U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |