CN204327713U - Bearing positioning and locking nut and locking mechanism - Google Patents
Bearing positioning and locking nut and locking mechanism Download PDFInfo
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- CN204327713U CN204327713U CN201420778707.0U CN201420778707U CN204327713U CN 204327713 U CN204327713 U CN 204327713U CN 201420778707 U CN201420778707 U CN 201420778707U CN 204327713 U CN204327713 U CN 204327713U
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- locking
- locking member
- nut
- nut body
- bearing positioning
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Abstract
The utility model relates to a kind of bearing positioning and locking nut and locking mechanism, wherein, bearing positioning and locking nut comprises: the locking member that the female nut body of tool and nut body rear end connect, locking member has the tight lock part engaged with running shaft, in the unlocked state, locking member expands outwardly in radial directions, and nut body rotates relative to running shaft to realize fastening nut body; In the locked condition, locking member is inwardly regained in radial directions, and tight lock part engages with running shaft to realize locking nut body.This bearing positioning and locking nut is by arranging the locking member of connection in nut body rear end, locking member can expand outwardly in radial directions, after fastening nut body is tightened, locking member is inwardly regained in radial directions with locking nut body, achieve the positioning and locking of a nut to bearing and the quick mounting of nut locking structure, and simple and reliable for structure, there is higher reliability and safety in utilization.
Description
Technical field
The utility model relates to turbogenerator technical field, particularly relates to a kind of bearing positioning and locking nut and locking mechanism.
Background technique
Bearing is the important support parts of running shaft in the assemblies such as gas turbine engine, when installing bearing on the rotary shaft, generally needs to use locking nut structure to position bearing.Conventional locking nut structure industrial at present mainly contains axially grooved end face screw lock and locking plate locking.Wherein, axially grooved end face screw lock structure can make thread engagement place deform, and affect nut precision and assembly quality, and the Pocket Machining of this structure is comparatively difficult, in use also there is the phenomenon of screw thread local pressure; And although locking plate locking mechanism can not make deformed threads, in the structure shown here, nut needs repeated removal, installation due to locking plate belongs to destructive and installs, each dismounting needs again to replace new locking plate, causes dismounting cost increase, and the increase of part also causes dismounting to bother.Therefore, it is many to there is part in existing locking nut structure, complex structure, and manufacture cost is high, the defect of dismounting inconvenience.
Model utility content
For overcoming above technological deficiency, the technical problem that the utility model solves is to provide a kind of bearing positioning and locking nut, this bearing positioning and locking nut can realize the quick mounting of bearing positioning and locking and nut locking structure by a nut, simple and reliable for structure, there is higher reliability and safety in utilization.
For solving the problems of the technologies described above, the utility model provides a kind of bearing positioning and locking nut, this bearing positioning and locking nut comprises: the locking member that the female nut body of tool and nut body rear end connect, locking member has the tight lock part engaged with running shaft, in the unlocked state, locking member expands outwardly in radial directions, and nut body rotates relative to running shaft to realize fastening nut body; In the locked condition, locking member is inwardly regained in radial directions, and tight lock part engages with running shaft to realize locking nut body.
Further, locking member is connected with the rear end of nut body by elastic material, and locking member is inwardly regained under the effect of elastic restoring force.
Further, locking member is connected with the rear end of nut body by plastic material, and locking member is inwardly regained under the effect of external force.
Further, the smooth section for dismantling also is provided with in the both sides of tight lock part.
Further, tight lock part is multiple and the engaging tooth of spaced set or protruding rib.
Further, tight lock part is multiple and the engagement helical teeth of spaced set, and in the locked condition, the direction that nut body is limited in tightening running shaft is rotated.
Further, locking member is provided with the first frock groove.
Further, the first frock groove is multiple and is circumferentially arranged on equally spacedly on locking member.
Further, the second frock groove is provided with in the front end of nut body.
Further, this bearing positioning and locking nut also comprises retaining ring, and in the locked condition, retaining ring is fastened on locking member to compress locking member.
The utility model additionally provides a kind of locking mechanism, and this locking mechanism has above-mentioned bearing positioning and locking nut.
Thus, based on technique scheme, the utility model provides a kind of bearing positioning and locking nut, this bearing positioning and locking nut is by arranging the locking member of connection in nut body rear end, locking member can expand outwardly in radial directions, after fastening nut body is tightened, locking member is inwardly regained in radial directions with locking nut body, achieve the positioning and locking of a nut to bearing and the quick mounting of nut locking structure, and simple and reliable for structure, there is higher reliability and safety in utilization.The locking mechanism that the utility model provides correspondingly also has above-mentioned beneficial effect.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, and form a application's part, schematic description and description of the present utility model, only for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the utility model bearing positioning and locking nut first embodiment;
Fig. 2 is the structural representation that the utility model bearing positioning and locking nut installs the first embodiment on the rotary shaft;
Fig. 3 is the cross sectional representation of A-A position in Fig. 2;
Fig. 4 is the close-up schematic view of Fig. 2 circled portion.
Fig. 5 is the structural representation of the utility model bearing positioning and locking nut second embodiment;
Fig. 6 is the structural representation that the utility model bearing positioning and locking nut installs the second embodiment on the rotary shaft;
Fig. 7 is the cross sectional representation of B-B position in Fig. 6;
Fig. 8 is the close-up schematic view of Fig. 6 circled portion.
Embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Embodiment of the present utility model is for the ease of having further description to design of the present utility model, the technical problem solved, the technical characteristics forming technological scheme and the technique effect that brings.It should be noted that, the explanation for these mode of executions is not formed restriction of the present utility model.In addition, just can mutually combine as long as the technical characteristics related in mode of execution of the present utility model described below does not form conflict each other.
Consider that existing locking nut structure exists part many, complex structure, manufacture cost is high, the defect of dismounting inconvenience, the utility model devises a kind of bearing positioning and locking nut, this bearing positioning and locking nut is by arranging the locking member of connection in nut body rear end, locking member can expand outwardly in radial directions, after fastening nut body is tightened, locking member is inwardly regained in radial directions with locking nut body, achieve the positioning and locking of a nut to bearing and the quick mounting of nut locking structure, and it is simple and reliable for structure, there is higher reliability and safety in utilization.
In first preferred illustrative examples of the present utility model, as shown in Figure 1 to 4, bearing positioning and locking nut acts on running shaft 5, bearing positioning and locking nut comprises: have the nut body 1 of internal thread 11 and the locking member 2 of nut body 1 rear end connection, locking member 2 has the tight lock part 21 engaged with running shaft 5, in the unlocked state, locking member 2 expands outwardly in radial directions, and nut body 1 rotates to realize fastening nut body 1 relative to running shaft 5; In the locked condition, locking member 2 is inwardly regained in radial directions, and tight lock part 21 engages to realize locking nut body 1 with running shaft 5.Wherein, locking member 2 can be connected by the rear end of elastic material with nut body 1, and in this case, locking member 2 is inwardly regained under the effect of elastic restoring force; Locking member 2 also can be connected by the rear end of plastic material with nut body 1, and in this case, locking member 2 is inwardly regained under such as artificial External Force Acting.
In this preferred illustrative examples, arrange the locking member 2 being connected to nut body 1 rear end can expand outwardly in radial directions, running shaft 5 can rotate relative to nut body 1, the running shaft 5 now rotated realizes being threaded with the screw section of nut body 1, when after fastening nut body 1, locking member 2 is inwardly regained in radial directions, now the tight lock part 21 of locking member 2 engages with locking nut body 1 with running shaft 5, wherein, engaging piece 2 can be engagement straight-tooth, also can be protruding rib, as long as the matching form of the shape of tight lock part 21 and running shaft 5 engaging position closes form stable meshing engagement structure, engaging tooth or protruding rib are preferably multiple and are set in qually spaced on locking member 2, to improve area of contact and engagement adaptability.As shown in Figure 3, nut body 1 can not rotate relative to running shaft 5, and the position of nut body 1 immobilizes, and then achieves stationary positioned to bearing 6.Bearing positioning and locking nut in this embodiment only has a nut, there is not the quick mounting that namely conventional locking plate and other structures achieve positioning and locking to bearing 6 and nut locking structure, and it is simple and reliable for structure, improve reliability and the safety in utilization of bearing positioning and locking nut.
In second preferred illustrative examples of the present utility model, as shown in Fig. 5 ~ Fig. 8, be engagement helical teeth with first preferred illustrative examples unlike, tight lock part 21 ', in the locked condition, nut body 1 is limited in the direction rotation of tightening running shaft 5.As shown in Figure 6 and Figure 8, the engagement helical teeth of tight lock part 21 ' matches with the sawtooth on running shaft 5, utilize the gradient of engagement helical teeth, in the locked condition, nut body 1 can only rotate to the direction (C shown in Fig. 8 to) of tightening running shaft 5, therefore achieve Quick fastening nut body 1, and be engaged helical teeth locking to the rotation in the direction (D shown in Fig. 8 to) of unscrewing running shaft 5, then reach again the object of locking simultaneously.Moment of torsion needed for anti-rotation, can also revise the size of the grinding tooth of locking member 2, groove width and material etc., guarantees can reach locking function while Quick fastening is installed.
For the ease of dismounting bearing positioning and locking nut, in another preferred illustrative examples, as shown in Figure 1, Figure 2, shown in Fig. 4, Fig. 5, Fig. 6 and Fig. 8, locking member 2 is also provided with the smooth section 22 for dismantling, smooth section 22 can be arranged on the neutral position of tight lock part 21,21 ', also the both sides of tight lock part 21,21 ' can be preferably arranged on so that force, in installation and removal process, all can utilize smooth section 22 radial outward dilations locking member 2, smooth section 22 is set and can also prevent stuck tight lock part 21,21 ' in rundown process.
In another preferred illustrative examples, as shown in Fig. 1, Fig. 3, Fig. 5 and Fig. 7, locking member 2 is provided with the first frock groove 3, arrange the first frock groove 3 can be convenient to clamping nut body 1 make it rotate.First frock groove 3 is preferably multiple and is circumferentially arranged on equally spacedly to expand clamping range on locking member 2, and the first frock groove 3 also helps locking member 2 and expands outwardly in radial directions.Further, as shown in Fig. 1, Fig. 3, Fig. 5 and Fig. 7, can also be provided with the second frock groove 4 in the front end of nut body 1, further to expand clamping range, and the second frock groove 4 is also convenient to the rotation fine setting of nut body 1.
In order to improve the positioning and locking reliability of bearing positioning and locking nut further, have in preferred illustrative examples at another, as shown in Figure 3 and Figure 7, bearing positioning and locking nut also comprises retaining ring 7, in the locked condition, retaining ring 7 to be fastened on locking member 2 to compress locking member 2, and what effectively improve locking member 2 and running shaft 5 engages reliability.
Thus, the installation and removal step of the utility model bearing positioning and locking nut first embodiment is as follows:
Under installation procedure, first the first frock groove 3 is utilized, use frock clamping nut body 1, utilize the tight lock part 21 of locking member 2 or smooth section 22 to expand outwardly locking member 2 in radial directions simultaneously, to engage with running shaft 5 to prevent when turning nut body 1 tight lock part 21 and lock; Then fastening nut body 1 on running shaft 5; Finally unclamp frock, utilize the second frock groove 4 nut body 1 to be rotated fine setting to correct position, the tight lock part 21 of locking member 2 engages with running shaft 5 locks, and retaining ring 7 is fastened on locking member 2 to realize positioning and locking.
Under dismounting operation, first disassembled by retaining ring 7, utilize the first frock groove 3 to clamp nut body 1, utilize smooth section 22 smooth section of locking member 2 to expand outwardly locking member 2 in radial directions, tight lock part 21 is separated with running shaft 5 simultaneously; Then on running shaft 5, nut body 1 is unscrewed; Finally realize removing frock.
The installation and removal step of the utility model bearing positioning and locking nut second embodiment is basically the same as those in the first embodiment, do not repeat them here, but the installation of the second embodiment can also when not expanding outwardly locking member 2, by directly on running shaft 5 fastening nut body 1 realize, as shown in Figure 8, in the locked condition, nut body 1 rotates along C direction, the inclined-plane of the helical teeth on the inclined-plane of the engagement helical teeth of locking member 2 and running shaft 5 is stuck, nut body 1 cannot rotate along D direction, then reaches the object of locking.This mounting type is more convenient compared to aforesaid mounting type, workable, has saved installation cost.
The utility model additionally provides a kind of locking mechanism, this locking mechanism has above-mentioned bearing positioning and locking nut, because the utility model bearing positioning and locking nut achieves the positioning and locking of a nut to bearing and the quick mounting of nut locking structure, and it is simple and reliable for structure, there is higher reliability and safety in utilization, therefore the utility model locking mechanism correspondingly also has above-mentioned beneficial effect, does not repeat them here.
The embodiment more than combined is described in detail for mode of execution of the present utility model, but the utility model is not limited to described mode of execution.For a person skilled in the art, when not departing from principle of the present utility model and connotation, multiple change, amendment are carried out to these mode of executions, equivalence is replaced and modification still falls within protection domain of the present utility model.
Claims (11)
1. a bearing positioning and locking nut, act on running shaft (5), it is characterized in that, comprise: there is the nut body (1) of internal thread (11) and the locking member (2) of described nut body (1) rear end connection, described locking member (2) has the tight lock part (21 engaged with described running shaft (5), 21 '), in the unlocked state, described locking member (2) expands outwardly in radial directions, described nut body (1) rotates to realize tightening described nut body (1) relative to described running shaft (5), in the locked condition, described locking member (2) is inwardly regained in radial directions, and described tight lock part (21,21 ') engages to realize locking described nut body (1) with described running shaft (5).
2. bearing positioning and locking nut according to claim 1, it is characterized in that, described locking member (2) is connected by the rear end of elastic material with described nut body (1), and described locking member (2) is inwardly regained under the effect of elastic restoring force.
3. bearing positioning and locking nut according to claim 1, it is characterized in that, described locking member (2) is connected by the rear end of plastic material with described nut body (1), and described locking member (2) is inwardly regained under the effect of external force.
4. the bearing positioning and locking nut according to any one of claims 1 to 3, is characterized in that, is also provided with the smooth section (22) for dismantling in the both sides of described tight lock part (21,21 ').
5. the bearing positioning and locking nut according to any one of claims 1 to 3, is characterized in that, described tight lock part (21) is multiple and the engagement straight-tooth of spaced set or protruding rib.
6. the bearing positioning and locking nut according to any one of claims 1 to 3, it is characterized in that, described tight lock part (21 ') is the multiple and engagement helical teeth of spaced set, in the locked condition, described nut body (1) is limited in the direction rotation of tightening described running shaft (5).
7. the bearing positioning and locking nut according to any one of claims 1 to 3, is characterized in that, described locking member (2) is provided with the first frock groove (3).
8. bearing positioning and locking nut according to claim 7, is characterized in that, described first frock groove (3) is for multiple and be circumferentially arranged on equally spacedly on described locking member (2).
9. bearing positioning and locking nut according to claim 8, is characterized in that, is provided with the second frock groove (4) in the front end of described nut body (1).
10. the bearing positioning and locking nut according to any one of claims 1 to 3, it is characterized in that, also comprise retaining ring (7), in the locked condition, described retaining ring (7) is fastened on described locking member (2) to compress described locking member (2).
11. 1 kinds of locking mechanisms, is characterized in that, have the bearing positioning and locking nut described in any one of claim 1 ~ 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420778707.0U CN204327713U (en) | 2014-12-11 | 2014-12-11 | Bearing positioning and locking nut and locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420778707.0U CN204327713U (en) | 2014-12-11 | 2014-12-11 | Bearing positioning and locking nut and locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204327713U true CN204327713U (en) | 2015-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420778707.0U Active CN204327713U (en) | 2014-12-11 | 2014-12-11 | Bearing positioning and locking nut and locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204327713U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106560635A (en) * | 2015-09-28 | 2017-04-12 | 中航商用航空发动机有限责任公司 | Locking device, rotator, power equipment and locking device design method |
| CN108044331A (en) * | 2017-12-11 | 2018-05-18 | 中国航发沈阳发动机研究所 | The locking plate locking fixture of engine bearing clamp nut |
| CN110159630A (en) * | 2019-05-28 | 2019-08-23 | 湖北福邦汽车配件科技有限公司 | A kind of subassembly of lock bolt |
-
2014
- 2014-12-11 CN CN201420778707.0U patent/CN204327713U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106560635A (en) * | 2015-09-28 | 2017-04-12 | 中航商用航空发动机有限责任公司 | Locking device, rotator, power equipment and locking device design method |
| CN106560635B (en) * | 2015-09-28 | 2018-10-30 | 中国航发商用航空发动机有限责任公司 | The design method of locking device, rotor, power-equipment and locking device |
| CN108044331A (en) * | 2017-12-11 | 2018-05-18 | 中国航发沈阳发动机研究所 | The locking plate locking fixture of engine bearing clamp nut |
| CN110159630A (en) * | 2019-05-28 | 2019-08-23 | 湖北福邦汽车配件科技有限公司 | A kind of subassembly of lock bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200241 Minhang District Lianhua Road, Shanghai, No. 3998 Patentee after: China Hangfa commercial aviation engine limited liability company Address before: 200241 Minhang District Lianhua Road, Shanghai, No. 3998 Patentee before: AVIC Commercial Aircraft Engine Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |