CN214304897U - Screw thread bearing box structure for pump - Google Patents
Screw thread bearing box structure for pump Download PDFInfo
- Publication number
- CN214304897U CN214304897U CN202023230424.7U CN202023230424U CN214304897U CN 214304897 U CN214304897 U CN 214304897U CN 202023230424 U CN202023230424 U CN 202023230424U CN 214304897 U CN214304897 U CN 214304897U
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- bearing box
- pump
- bearing
- gland
- screw thread
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Abstract
The utility model relates to a pump field provides a screw thread bearing box structure for pump. The boss that bearing one end has in the bearing box is spacing and the cooperation is installed in the supplementary spacing of epaxial nut of pump, and the other end of bearing is spacing by the gland, and the gland connects soon at the bearing box through the mode of screw thread, when having processing or measuring error, can adjust the axis position of gland through rotating the screw thread to the clearance that the compensation error produced supports tight bearing all the time, forms stable spacing, avoids because of the vibration that the clearance produced, improves the life of pump.
Description
Technical Field
The utility model relates to a pump field, concretely relates to screw thread bearing box structure for pump.
Background
The two ends of the pump shaft of the pump are connected to the impeller and the motor, respectively, so that the middle of the pump shaft is usually supported on the pump casing by a bearing box. At least two bearings are arranged in the bearing box to support the pump shaft. When the pump is provided with the bearing, the bearing is firstly arranged in the bearing box and is abutted against the bearing through the gland to limit the bearing. When the bearing cover or the bearing box has processing and measuring errors, a gap is generated between the bearing and the gland, and when the pump runs, the gap for mounting the bearing generates vibration for the running of the pump, so that the service life of the pump is reduced.
Disclosure of Invention
The clearance problem that exists when bearing installation in the bearing box among the solution prior art, the utility model aims to provide a screw thread bearing box structure for pump.
The utility model discloses the technical scheme who takes does:
a threaded bearing box structure for a pump comprises a bearing box, wherein the bearing box is arranged in a mounting hole of a pump shell, a pair of bearings which are tightly attached to each other are arranged in the bearing box, the outer end face of the bearing box is a flange face, the flange face is connected with the pump shell through a bolt, a pump shaft is rotatably supported on the bearing box through the pair of bearings, and a gland is arranged on the inner end face of the bearing box; the two ends of the pair of bearings are axially limited by the inner bosses of the bearing box and the gland respectively; the inner processing of bearing box has the groove of stepping down, and it has the external screw thread to process on the outer disc in groove of stepping down, and gland tip processing has the go-between, and the inside processing of go-between has the internal thread, the go-between and the groove threaded connection of stepping down of gland, the terminal surface of gland support the medial surface of tight a pair of bearing.
Furthermore, a limit nut is mounted on the pump shaft through threads, and the limit nut limits the end face of the outer side of the bearing.
Further, oil seals are respectively arranged between the pump shaft and the outer end face of the bearing box and between the pump shaft and the gland.
And furthermore, an installation boss matched with the connecting groove of the inner ring of the oil seal is processed on the pump shaft.
After taking above technical scheme, the beneficial effects of the utility model are that: the boss that bearing one end has in the bearing box is spacing and the cooperation is installed in the supplementary spacing of epaxial nut of pump, and the other end of bearing is spacing by the gland, and the gland connects soon at the bearing box through the mode of screw thread, when having processing or measuring error, can adjust the axis position of gland through rotating the screw thread to the clearance that the compensation error produced supports tight bearing all the time, forms stable spacing, avoids because of the vibration that the clearance produced, improves the life of pump.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings:
as shown in the figure, the threaded bearing box structure for the pump comprises a bearing box 1, wherein the bearing box 1 is installed in an installation hole of a pump shell 2, the outer end face of the bearing box 1 is a flange face 3, and the flange face 3 of the bearing box 1 is fixedly connected with the pump shell 2 through bolts. A pair of bearings 4 which are tightly attached to each other are installed in the bearing box 1, the pump shaft 5 is rotatably supported on the bearing box 1 through the pair of bearings 4, and a gland 6 is installed on the inner end face of the bearing box 1; the end of the gland 6 is provided with a connecting ring 7, the inside of the connecting ring 7 is provided with internal threads, and the outer diameter of the connecting ring 7 is the same as that of the bearing box 1. The inner of bearing box 1 is processed and is had the groove of stepping down 8, and the outer disc of the groove of stepping down 8 is processed and is had the external screw thread, and the go-between 7 of gland 6 inserts in the clearance between groove of stepping down 8 and pump case mounting hole to with the external screw thread connection in the groove of stepping down 8. The two ends of the bearing 4 are axially limited by the inner boss 9 of the bearing box 1 and the end surface of the connecting ring 7 of the gland 6 respectively. A limit nut 10 is installed on the pump shaft 5 through threads, and the limit nut 10 is used for assisting in limiting the end face of the outer side of the bearing 4.
In order to meet the sealing requirement of the bearing box 1, oil seals 11 are respectively arranged between the pump shaft 5 and the outer end face of the bearing box 1 and between the pump shaft and the gland 6. In order to fix the oil seal, a mounting boss 12 matched with the connecting groove of the inner ring of the oil seal is processed on the pump shaft 5.
When the pump is provided with the bearing, the bearing 4 is firstly arranged in the bearing box 1 and is screwed up with the thread of the bearing box 1 through the gland 6, so that the influence of the processing and measuring errors on the clearance caused by installation can be effectively avoided, and the vibration generated by the clearance for installing the bearing on the operation of the pump can be effectively eliminated.
Claims (4)
1. A threaded bearing box structure for a pump comprises a bearing box, wherein the bearing box is arranged in a mounting hole of a pump shell, a pair of bearings which are tightly attached to each other are arranged in the bearing box, the outer end face of the bearing box is a flange face, the flange face is connected with the pump shell through a bolt, and a pump shaft is rotatably supported on the bearing box through the pair of bearings; the two ends of the pair of bearings are axially limited by the inner bosses of the bearing box and the gland respectively; the inner processing of bearing box has the groove of stepping down, and it has the external screw thread to process on the outer disc in groove of stepping down, and gland tip processing has the go-between, and the inside processing of go-between has the internal thread, the go-between and the groove threaded connection of stepping down of gland, the terminal surface of gland support the medial surface of tight a pair of bearing.
2. The threaded bearing cartridge structure for pump according to claim 1, wherein a limit nut is threadedly mounted on the pump shaft, and the limit nut limits the outer end face of the bearing.
3. The threaded bearing box structure for pump according to claim 1, wherein oil seals are respectively installed between the pump shaft and the outer end face of the bearing box and between the pump shaft and the gland.
4. The structure of claim 1, wherein the pump shaft is formed with a mounting boss for engaging with the connecting groove of the inner ring of the oil seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023230424.7U CN214304897U (en) | 2020-12-29 | 2020-12-29 | Screw thread bearing box structure for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023230424.7U CN214304897U (en) | 2020-12-29 | 2020-12-29 | Screw thread bearing box structure for pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214304897U true CN214304897U (en) | 2021-09-28 |
Family
ID=77863047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023230424.7U Active CN214304897U (en) | 2020-12-29 | 2020-12-29 | Screw thread bearing box structure for pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214304897U (en) |
-
2020
- 2020-12-29 CN CN202023230424.7U patent/CN214304897U/en active Active
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