CN214248037U - Pump bearing component with axial pretension device - Google Patents
Pump bearing component with axial pretension device Download PDFInfo
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- CN214248037U CN214248037U CN202023282592.0U CN202023282592U CN214248037U CN 214248037 U CN214248037 U CN 214248037U CN 202023282592 U CN202023282592 U CN 202023282592U CN 214248037 U CN214248037 U CN 214248037U
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Abstract
The utility model relates to the technical field of fluid machinery, specifically indicate a take axial preloading device's pump bearing part, including the pump shaft, be equipped with thrust bearing on the pump shaft, be equipped with axial preloading mechanism on the pump shaft, axial preloading mechanism includes bearing inner race hold-down mechanism and bearing inner race hold-down mechanism, bearing inner race hold-down mechanism includes locking frame and bearing inner bush, bearing inner race hold-down mechanism includes the spring, the spring holder, bearing clamp plate and bearing outer bush, the thrust bearing inboard is equipped with the bearing inner bush, the outside is equipped with the bearing outer bush, bearing inner bush one end is equipped with spacing platform radially outwards, spacing platform compresses tightly thrust bearing's inner circle with locking frame, the spring, spring holder and bearing clamp plate compress tightly thrust bearing's outer lane is spacing, thrust bearing comprises two angular contact ball bearings, be equipped with on the pump shaft and compress tightly detachable mechanism, the utility model discloses well bearing inner race and outer lane all obtain compressing tightly, The bearing does not have no load, the bearing has good lubricity and long service life.
Description
Technical Field
The utility model relates to the technical field of fluid machinery, specifically indicate a take axial preloading device's pump bearing part.
Background
Along with the high-speed development of modern industry, the requirements on the safety, reliability and maintenance period of pumps in the fields of petroleum, petrochemical industry, natural gas, thermal power and the like are higher and higher, but the existing large-scale pump non-driving end bearing part adopts a structure of a sliding bearing and a thrust bearing, the thrust bearing is composed of angular contact ball bearings which are installed back to back, the angular contact ball bearings only bear axial force in a single direction, and both sides of the angular contact ball bearings have no pretightening force, the searched Chinese patent CN210769481U discloses a centrifugal pump rolling bearing pressing structure which comprises a shaft body, wherein the driving side of the shaft body is sleeved with the angular contact ball bearings, a disc spring, a gasket and a bearing support, the disc spring is additionally arranged between the angular contact ball bearings and the gasket, the gasket is positioned at the inner side of the bearing support, the left side of the bearing support is fixedly connected with a pump cover on the shaft body through a bolt, and the disc spring is additionally arranged between the angular contact ball bearings and the gasket, and the suit is on the axle body, the not enough of above-mentioned patent: firstly, the butterfly spring in the patent can only press the inner ring or the outer ring of the bearing, and can not simultaneously press the inner ring and the outer ring, so that the back-to-back mounted angular contact ball bearing only bears axial force in one direction, namely one bearing bears the axial force, the other bearing runs in no-load, the no-load can cause the phenomenon that a bearing steel ball and a channel slip, the bearing is more easily damaged, and faults are caused; secondly, combine the attached drawing of above-mentioned patent, above-mentioned patent only sets up belleville spring in the side of an angular contact ball bearing, just easily seals the terminal surface of this bearing, causes the bearing lubrication not good and consequently damages the bearing.
Disclosure of Invention
The utility model aims at solving prior art not enough, provide a bearing inner race and outer lane all compress tightly, the bearing can not take place no-load phenomenon, the bearing lubricity is good, the bearing is not fragile, longe-lived, simple to operate's take axial preloading device's pump bearing part.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a take axial preloading device's pump bearing part, includes the pump shaft, is equipped with thrust bearing on the pump shaft, its characterized in that: the pump shaft is provided with an axial pre-tightening mechanism, the axial pre-tightening mechanism comprises a bearing inner ring pressing mechanism and a bearing outer ring pressing mechanism, the bearing inner ring pressing mechanism comprises a locking frame and a bearing inner bushing, the bearing outer ring pressing mechanism comprises a spring, a spring seat, a bearing pressing plate and a bearing outer bushing, the inner side of the thrust bearing is provided with the bearing inner bushing, the outer side of the thrust bearing is provided with the bearing outer bushing, the inner wall of the bearing inner bushing is fixedly connected with the pump shaft, the outer wall of the bearing inner bushing is fixedly connected with the inner ring of the thrust bearing, one end of the bearing inner bushing is radially outwards provided with a limiting table, one end of the inner ring of the thrust bearing abuts against the limiting table, the other end of the inner ring of the thrust bearing is provided with the locking frame, the locking frame is sleeved on the pump shaft and fixedly connected with the pump shaft, and the end face of one end, facing the thrust bearing, of the locking frame abuts against the inner ring of the thrust bearing, the inner ring of the thrust bearing is compressed in a limiting mode through the limiting table and the locking frame, spring seats are arranged on two sides of the outer ring of the thrust bearing at intervals respectively, one end of each spring seat is fixedly connected with the outer ring of the thrust bearing, a spring is arranged at the other end of each spring seat, one end of each spring is fixedly connected with the corresponding spring seat, a bearing pressing plate is arranged at the other end of each spring, a through hole is formed in the middle of each bearing pressing plate, each bearing pressing plate penetrates through the locking frame or a pump shaft to abut against the corresponding spring, the bearing pressing plates are fixedly connected with outer bearing bushes so as to be favorable for compressing the outer ring of the thrust bearing in a limiting mode through the springs, the spring seats and the bearing pressing plates, and the thrust bearing is composed of two angular contact ball bearings.
Be equipped with on the pump shaft and compress tightly detachable mechanism, compress tightly detachable mechanism includes end cover, the bearing body and prevents the commentaries on classics key, the one end that angular contact ball bearing was kept away from to the locking frame is equipped with the end cover, the fixed commentaries on classics key that is equipped with on the bearing outer bush, the bearing outer bush outside is equipped with the bearing body, be equipped with the keyway on the bearing body, bearing body cover is through preventing commentaries on classics key, keyway and bearing outer bush fixed connection on the bearing outer bush, bearing body one end and end cover fixed connection, the other end through slide bearing and pump shaft fixed connection to do benefit to through the keyway, prevent changeing the key and make things convenient for dismouting bearing outer bush, and then realize bearing inner circle hold-down mechanism and bearing outer lane hold-down mechanism's dismouting, the maintenance is changed conveniently.
Be equipped with the bearing spacer sleeve between two angular contact ball bearings, bearing spacer sleeve and pump shaft fixed connection to it is spacing for two angular contact ball bearings to do benefit to through the bearing spacer sleeve.
By adopting the above structure, the utility model, have that bearing inner race and outer lane all obtain compressing tightly, the bearing can not take place no-load phenomenon, bearing lubricity is good, the bearing is not fragile, longe-lived, advantages such as simple to operate.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged schematic view of the bearing inner ring hold-down mechanism and the bearing outer ring hold-down mechanism on the pump shaft of the present invention.
Fig. 3 is an enlarged view of a portion a in fig. 1 according to the present invention.
Reference numerals: the pump shaft comprises a pump shaft 1, a thrust bearing 2, a bearing inner ring pressing mechanism 3, a bearing outer ring pressing mechanism 4, a locking frame 5, a bearing inner bushing 6, a spring 7, a spring seat 8, a bearing pressing plate 9, a bearing outer bushing 10, a limiting table 11, an angular contact ball bearing 12, a pressing detachable mechanism 13, a bearing end cover 14, a bearing body 15, an anti-rotation key 16, a key groove 17, a sliding bearing 18 and a bearing spacer sleeve 19.
Detailed Description
The following describes in further detail embodiments of the present invention with reference to the accompanying drawings.
The utility model provides a take axial preloading device's pump bearing part, includes pump shaft 1, is equipped with thrust bearing 2 on the pump shaft 1, its characterized in that: the pump shaft 1 is provided with an axial pre-tightening mechanism, the axial pre-tightening mechanism comprises a bearing inner ring pressing mechanism 3 and a bearing outer ring pressing mechanism 4, the bearing inner ring pressing mechanism 3 comprises a locking frame 5 and a bearing inner bushing 6, the bearing outer ring pressing mechanism 4 comprises a spring 7, a spring seat 8, a bearing pressing plate 9 and a bearing outer bushing 10, the bearing inner bushing 6 is arranged on the inner side of the thrust bearing 2, the bearing outer bushing 10 is arranged on the outer side of the thrust bearing 2, the inner wall of the bearing inner bushing 6 is fixedly connected with the pump shaft 1, the outer wall of the bearing inner bushing 6 is fixedly connected with the inner ring of the thrust bearing 2, one end of the bearing inner bushing 6 is radially and outwards provided with a limiting table 11, one end of the inner ring of the thrust bearing 2 abuts against the limiting table 11, the other end of the inner ring of the thrust bearing 2 is provided with a locking frame 5, and the locking frame 5 is sleeved on the pump shaft 1 and fixedly connected with the pump shaft 1, locking frame 5 offsets towards thrust bearing 2's one end terminal surface and thrust bearing 2's inner circle and leans on to do benefit to and carry out spacing compressing tightly to thrust bearing's inner circle through spacing platform and locking frame, thrust bearing 2's outer lane both sides interval respectively are equipped with spring holder 8, spring holder 8 one end and thrust bearing 2's outer lane fixed connection, the other end are equipped with spring 7, spring 7 one end and spring holder 8 fixed connection, the other end are equipped with bearing clamp plate 9, be equipped with the through-hole in the middle of the bearing clamp plate 9, bearing clamp plate 9 passes locking frame 5 or pump shaft 1 and offsets with spring 7 and leans on, bearing clamp plate 9 and bearing outer bush 10 fixed connection to do benefit to and carry out spacing compressing tightly to thrust bearing's outer lane through spring, spring holder, bearing clamp plate, thrust bearing 2 comprises two angular contact ball bearing 12.
Be equipped with on the pump shaft 1 and compress tightly detachable mechanism 13, it includes bearing end cover 14, bearing body 15 and prevents the change key 16 to compress tightly detachable mechanism 13, the one end that angular contact ball bearing 12 was kept away from to locking frame 5 is equipped with bearing end cover 14, fixed being equipped with on the bearing outer bush 10 prevents change key 16, the bearing outer bush 10 outside is equipped with bearing body 15, be equipped with keyway 17 on the bearing body 15, bearing body 15 cover is through preventing change key 16, keyway 17 and bearing outer bush 10 fixed connection on the bearing outer bush 10, 15 one end of bearing body and bearing end cover 14 fixed connection, the other end is through slide bearing 18 and 1 fixed connection of pump shaft to do benefit to through the keyway, prevent that the change key makes things convenient for dismouting bearing outer bush, and then realize bearing inner race hold-down mechanism and bearing outer race hold-down mechanism's dismouting, maintenance change convenience.
Be equipped with bearing spacer 19 between two angular contact ball bearing 12, bearing spacer 19 and pump shaft 1 fixed connection to it is spacing for two angular contact ball bearing to do benefit to through the bearing spacer.
As shown in attached drawings 1-3, the structure schematic diagram of the utility model is that the axial pre-tightening mechanism is composed of the bearing inner ring pressing mechanism and the bearing outer ring pressing mechanism, and pre-tightens the inner ring and the outer ring of two angular contact ball bearings, in the utility model, the two angular contact ball bearings are fixed on the pump shaft through the bearing inner bush, the two angular contact ball bearings are fixed and limited through the bearing spacer bush, the left side of the inner ring of the left angular contact ball bearing is limited through the locking frame, the right side of the inner ring of the left angular contact ball bearing is limited through the left end of the bearing spacer bush, the left side of the outer ring of the left angular contact ball bearing is pre-tightened through the elastic force provided by the spring, the spring seat and the bearing pressing plate, the left side of the inner ring of the right angular contact ball bearing is limited through the right end of the bearing spacer bush, the right side of the inner ring of the right angular contact ball bearing is limited through the limiting table, and the limiting table is fixedly connected with the bearing inner bush, the right side of the outer ring of the angular contact ball bearing on the right side is pre-tightened by elastic force provided by the spring, the spring seat and the bearing pressing plate on the left side, so that the inner rings of the two angular contact ball bearings are all compressed in a limiting manner, and because the inner rings of the angular contact ball bearings are matched with the outer ring, the outer rings of the two angular contact ball bearings are also extruded in a limiting manner, so that the inner rings and the outer rings of the two angular contact ball bearings are both compressed; and the utility model discloses angular contact ball bearing both sides all obtain spacing extrusion, do not have the unsmooth problem of oil return, furthermore, the utility model discloses in still set up and compress tightly detachable mechanism, combine figure 1 and figure 3, set up the keyway on the bearing body, the key is prevented in the installation of bearing outer bush, through the keyway, prevent that key and slide bearing take bearing body and bearing outer bush and pump shaft fixed connection, the bearing end cover passes through screw and bearing body fixed connection, during the dismantlement, pull down the screw of bearing end cover, take off the bearing end cover, then take pump shaft and bearing inner circle hold-down mechanism and bearing outer lane hold-down mechanism on it out, like figure 2, make things convenient for the pump shaft and the maintenance and the change of bearing inner circle hold-down mechanism and bearing outer lane hold-down mechanism part on it, and save cost, prolong the life of each part.
By adopting the above structure, the utility model, have that bearing inner race and outer lane all obtain compressing tightly, the bearing can not take place no-load phenomenon, bearing lubricity is good, the bearing is not fragile, longe-lived, advantages such as simple to operate.
Claims (3)
1. The utility model provides a take axial preloading device's pump bearing part, includes the pump shaft, is equipped with thrust bearing on the pump shaft, its characterized in that: the pump shaft is provided with an axial pre-tightening mechanism, the axial pre-tightening mechanism comprises a bearing inner ring pressing mechanism and a bearing outer ring pressing mechanism, the bearing inner ring pressing mechanism comprises a locking frame and a bearing inner bushing, the bearing outer ring pressing mechanism comprises a spring, a spring seat, a bearing pressing plate and a bearing outer bushing, the inner side of the thrust bearing is provided with the bearing inner bushing, the outer side of the thrust bearing is provided with the bearing outer bushing, the inner wall of the bearing inner bushing is fixedly connected with the pump shaft, the outer wall of the bearing inner bushing is fixedly connected with the inner ring of the thrust bearing, one end of the bearing inner bushing is radially outwards provided with a limiting table, one end of the inner ring of the thrust bearing abuts against the limiting table, the other end of the inner ring of the thrust bearing is provided with the locking frame, the locking frame is sleeved on the pump shaft and fixedly connected with the pump shaft, and the end face of one end, facing the thrust bearing, of the locking frame abuts against the inner ring of the thrust bearing, the two sides of the outer ring of the thrust bearing are respectively provided with a spring seat at intervals, one end of each spring seat is fixedly connected with the outer ring of the thrust bearing, the other end of each spring seat is provided with a spring, one end of each spring is fixedly connected with the corresponding spring seat, the other end of each spring is provided with a bearing pressing plate, a through hole is formed in the middle of each bearing pressing plate, each bearing pressing plate penetrates through the corresponding locking frame or the corresponding pump shaft to abut against the corresponding spring, each bearing pressing plate is fixedly connected with the corresponding bearing outer bushing, and each thrust bearing is composed of two angular contact ball bearings.
2. A pump bearing component with an axial pretensioning device according to claim 1, characterized in that: the pump shaft is provided with a pressing detachable mechanism, the pressing detachable mechanism comprises a bearing end cover, a bearing body and an anti-rotation key, one end, far away from the angular contact ball bearing, of the locking frame is provided with the bearing end cover, the bearing outer bushing is fixedly provided with the anti-rotation key, the bearing body is arranged on the outer side of the bearing outer bushing, a key groove is formed in the bearing body, the bearing body is sleeved on the bearing outer bushing and fixedly connected with the bearing outer bushing through the anti-rotation key, the key groove and the bearing outer bushing, one end of the bearing body is fixedly connected with the bearing end cover, and the other end of the bearing body is fixedly connected with the pump shaft through a sliding bearing.
3. A pump bearing component with axial pretensioning according to claim 1 or 2, characterized in that: and a bearing spacer sleeve is arranged between the two angular contact ball bearings and is fixedly connected with the pump shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023282592.0U CN214248037U (en) | 2020-12-31 | 2020-12-31 | Pump bearing component with axial pretension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023282592.0U CN214248037U (en) | 2020-12-31 | 2020-12-31 | Pump bearing component with axial pretension device |
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| Publication Number | Publication Date |
|---|---|
| CN214248037U true CN214248037U (en) | 2021-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023282592.0U Active CN214248037U (en) | 2020-12-31 | 2020-12-31 | Pump bearing component with axial pretension device |
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| Country | Link |
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| CN (1) | CN214248037U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023092833A1 (en) * | 2021-11-29 | 2023-06-01 | 烟台杰瑞石油装备技术有限公司 | Reduction gearbox and fracturing device |
-
2020
- 2020-12-31 CN CN202023282592.0U patent/CN214248037U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023092833A1 (en) * | 2021-11-29 | 2023-06-01 | 烟台杰瑞石油装备技术有限公司 | Reduction gearbox and fracturing device |
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