CN209012276U - A kind of angular contact ball bearing pre-tightening mechanism - Google Patents
A kind of angular contact ball bearing pre-tightening mechanism Download PDFInfo
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- CN209012276U CN209012276U CN201821693996.9U CN201821693996U CN209012276U CN 209012276 U CN209012276 U CN 209012276U CN 201821693996 U CN201821693996 U CN 201821693996U CN 209012276 U CN209012276 U CN 209012276U
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- mandrel
- sliding bush
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Abstract
It is disclosed by the utility model to belong to bearing pre-tightened technical field, specially a kind of angular contact ball bearing pre-tightening mechanism, including outer housing, mandrel and bearing block, the outer housing is fixedly connected on the left side wall of bearing block by screw, the outer wall right end of the mandrel is socketed with spring bearing, the pretightning force that tabletting spring generates is transferred uniformly into spring bearing by bearing sliding bush, eliminates the defects of spring bearing pretightning force is uneven, improves preload pretensioning effect；It can reduce the friction between spring bearing and mandrel, while guaranteeing that pretightning force is uniformly distributed along axial direction, be conducive to the axial vibration to spring bearing preload and when reduction mandrel runs at high speed of tabletting spring；Convenient working personnel dismount, adjustment, also because spring bearing is installed in a relatively closed space, bearing are preferably protected, and the invasion of the impurity such as pre- grease proofing, water and dust extends the service life of bearing.
Description
Technical field
The utility model relates to bearing pre-tightened technical field, specially a kind of angular contact ball bearing pre-tightening mechanism.
Background technique
Angular contact ball bearing is the one of which of numerous bearing types, it can bear radial load simultaneously and axially bear
Lotus, and can work at higher rotational speeds, due to above-mentioned characteristic, angular contact ball bearing is frequently used in main shaft.Bearing
The diagonal contact ball bearing of preload for it is quite important, suitably by bearing pre-tightened, the running accuracy of bearing can be improved, inhibit
The combination rigidity of sliding friction, increase bearing when bearing ball operates, above-mentioned bearing pre-tightened feature synthesis are embodied in main shaft
The performance of energy reduces spindle rotation accuracy error, reduces vibration and noise when operating.
Existing main shaft design is made a general survey of, the preloading spring in pre-tightening mechanism is directly acted on bearing mostly, in this way, working as
When main shaft works, the pretightning force that preloading spring generates is easy to appear deflection, and bearing is caused to bear non-uniform compression.In addition,
Existing bearing pre-tightened mechanism design is unfavorable for maintaining, and is needed in disassembly process by red tape, need to consume big
The manpower working hour of amount.
Utility model content
The purpose of this utility model is to provide a kind of angular contact ball bearing pre-tightening mechanisms, to solve in above-mentioned background technique
The pretightning force that the existing pre-tightening mechanism preloading spring proposed generates is easy to appear deflection, causes bearing to bear non-uniform pressure and answers
Power.In addition, existing bearing pre-tightened mechanism design is unfavorable for maintaining, needed in disassembly process by red tape,
The problem of a large amount of manpower working hour need to be consumed.
To achieve the above object, the utility model provides the following technical solutions:
A kind of angular contact ball bearing pre-tightening mechanism, including outer housing, mandrel and bearing block are designed, the outer housing passes through spiral shell
Nail is fixedly connected on the left side wall of bearing block, and the outer wall right end of the mandrel is socketed with spring bearing, the right end of the mandrel
Limit end cap has been connected by screw on side wall；
It is axially installed with bearing sliding bush on the right side of the inner cavity of the bearing block, and bearing sliding bush is socketed in the spring bearing
On outer wall, the end of the outer ring outer wall of the spring bearing is supported on the intracavity sidewall of the bearing sliding bush, and the bearing is sliding
The right end of set is fixedly connected with bearing gland by screw, is supported by tabletting between the left side wall and bearing block of the bearing gland
Spring, the tabletting spring pocket is on the outer wall of bearing sliding bush.
Preferably, it is provided with position limiting convex ring on the right side of the outer wall of the mandrel, and the position limiting convex ring is supported on spring bearing
On the left side wall of inner ring, play the role of positioning to spring bearing.
Preferably, the bearing sliding bush is the sliding sleeve of inner cavity left end setting positioning pull ring, and positions pull ring and be supported on support
On the left side wall of outer race.
Preferably, the upper and lower surface of the bearing sliding bush offers keyway, and the inner wall of the bearing block is provided with and key
The compatible spline of slot, avoids bearing sliding bush from rotating with respect to bearing block.
Preferably, the tabletting spring is two groups of symmetrically arranged elastic pieces, and fixed company between elastic piece described in two groups
It connects, the edge of the elastic piece is uniformly provided with notch, and elastic effect is preferable.
Compared with prior art, the utility model has the beneficial effects that
1) pretightning force that tabletting spring generates is transferred uniformly into spring bearing by bearing sliding bush, eliminates spring bearing
The defects of pretightning force is uneven improves preload pretensioning effect；
2) it can reduce the friction between spring bearing and mandrel, while guaranteeing that pretightning force is uniformly distributed along axial direction, favorably
Axially spring bearing is pre-tightened in tabletting spring and reduces vibration when mandrel runs at high speed；
3) convenient working personnel dismount, adjustment, also because spring bearing be installed in a relatively closed space,
Bearing is preferably protected, the invasion of the impurity such as pre- grease proofing, water and dust extends the service life of bearing.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the structural schematic diagram of the utility model bearing sliding bush；
Fig. 3 is the side structure schematic view of the utility model tabletting spring.
In figure: 1 outer housing, 2 mandrels, 3 bearing blocks, 4 bearing sliding bushs, 5 spring bearings, 6 limit end caps, 7 bearing glands, 8
Tabletting spring.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
Embodiment one:
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of angular contact ball bearing pre-tightening mechanism, including
Outer housing 1, mandrel 2 and bearing block 3, the outer housing 1 are fixedly connected on the left side wall of bearing block 3 by screw, the core
The outer wall right end of axis 2 is socketed with spring bearing 5, and limit end cap 6 has been connected by screw on the right end sidewalls of the mandrel 2；
It is axially installed with bearing sliding bush 4 on the right side of the inner cavity of the bearing block 3, and bearing sliding bush 4 is socketed in the support shaft
It holds on 5 outer wall, the end of the outer ring outer wall of the spring bearing 5 is supported on the intracavity sidewall of the bearing sliding bush 4, described
The right end of bearing sliding bush 4 is fixedly connected with bearing gland 7 by screw, between the left side wall and bearing block 3 of the bearing gland 7
It is supported by tabletting spring 8,8 sets of the tabletting spring is on the outer wall of bearing sliding bush 4.
Embodiment two:
A kind of angular contact ball bearing pre-tightening mechanism, including outer housing 1, mandrel 2 and bearing block 3, the outer housing 1 pass through spiral shell
Nail is fixedly connected on the left side wall of bearing block 3, and the outer wall right end of the mandrel 2 is socketed with spring bearing 5, the mandrel 2
Limit end cap 6 has been connected by screw on right end sidewalls；
It is axially installed with bearing sliding bush 4 on the right side of the inner cavity of the bearing block 3, and bearing sliding bush 4 is socketed in the support shaft
It holds on 5 outer wall, the end of the outer ring outer wall of the spring bearing 5 is supported on the intracavity sidewall of the bearing sliding bush 4, described
The right end of bearing sliding bush 4 is fixedly connected with bearing gland 7 by screw, between the left side wall and bearing block 3 of the bearing gland 7
It is supported by tabletting spring 8,8 sets of the tabletting spring is on the outer wall of bearing sliding bush 4.
It is provided with position limiting convex ring on the right side of the outer wall of the mandrel 2, and the position limiting convex ring is supported on 5 inner ring of spring bearing
On left side wall, the bearing sliding bush 4 is the sliding sleeve of inner cavity left end setting positioning pull ring, and positions pull ring and be supported on spring bearing 5
On the left side wall of outer ring, the upper and lower surface of the bearing sliding bush 4 offers keyway, the inner wall of the bearing block 3 be provided with
The compatible spline of keyway, the tabletting spring 8 are two groups of symmetrically arranged elastic pieces, and fixed between elastic piece described in two groups
Connection, the edge of the elastic piece is uniformly provided with notch.
Tabletting spring 8 is supported between bearing gland 7 and bearing block 3, two groups of 8 elastic pieces of tabletting spring of tabletting spring 8
Reaction force is generated by the active force of bearing block 3 and bearing gland 7 and to bearing block 3 and bearing gland 7, so that bearing gland
7 opposite bearing blocks 3 move to right, and are fixedly connected between bearing gland 7 and bearing sliding bush 4 by screw, so that bearing sliding bush 4 is in bearing
Opposite 3 move to right under the action of gland 7, are cooperated between bearing sliding bush 4 and bearing block 3 by spline, keyway, so that bearing sliding bush 4
It is merely able to opposite bearing block 3 to move axially without being able to rotate, moving to right for bearing sliding bush 4 generates to the right the outer ring of spring bearing 5
Active force so that the outer ring of spring bearing 5 is finely tuned to the right, so that the outer ring cooperation inner ring of spring bearing 5 generate ball
Preload effect.
It is if desired dismounted again after installation, operating personnel only needs simply to unclamp screw, removes bearing gland 7 and tabletting
Spring 8 can change the outfit to pre-tightening mechanism and spring bearing 5, be adjusted, and program is succinct and very convenient.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, for
For those skilled in the art, it is clear that the present invention is not limited to the details of the above exemplary embodiments, and without departing substantially from this
In the case where the spirit or essential attributes of utility model, the utility model can be realized in other specific forms；Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by institute
Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent elements of the claims
All changes are embraced therein, and should not treat any reference in the claims as limiting related right
It is required that.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of angular contact ball bearing pre-tightening mechanism, including outer housing (1), mandrel (2) and bearing block (3), the outer housing (1)
It is fixedly connected on by screw on the left side wall of bearing block (3), it is characterised in that: the outer wall right end of the mandrel (2) is socketed with
Spring bearing (5) has been connected by screw to limit end cap (6) on the right end sidewalls of the mandrel (2)；
It is axially installed with bearing sliding bush (4) on the right side of the inner cavity of the bearing block (3), and bearing sliding bush (4) is socketed in the support
On the outer wall of bearing (5), the end of the outer ring outer wall of the spring bearing (5) is supported on the lumen side of the bearing sliding bush (4)
On wall, the right end of the bearing sliding bush (4) is fixedly connected with bearing gland (7) by screw, the left side of the bearing gland (7)
It is supported by between wall and bearing block (3) tabletting spring (8), the tabletting spring (8) covers on the outer wall of bearing sliding bush (4).
2. a kind of angular contact ball bearing pre-tightening mechanism according to claim 1, it is characterised in that: outside the mandrel (2)
It is provided with position limiting convex ring on the right side of wall, and the position limiting convex ring is supported on the left side wall of spring bearing (5) inner ring.
3. a kind of angular contact ball bearing pre-tightening mechanism according to claim 1, it is characterised in that: the bearing sliding bush (4)
The sliding sleeve of positioning pull ring is set for inner cavity left end, and positions pull ring and is supported on the left side wall of spring bearing (5) outer ring.
4. a kind of angular contact ball bearing pre-tightening mechanism according to claim 1, it is characterised in that: the bearing sliding bush (4)
Upper and lower surface offer keyway, the inner wall of the bearing block (3) is provided with spline compatible with keyway.
5. a kind of angular contact ball bearing pre-tightening mechanism according to claim 1, it is characterised in that: the tabletting spring (8)
It for two groups of symmetrically arranged elastic pieces, and is fixedly connected between elastic piece described in two groups, the edge of the elastic piece is uniformly opened
Equipped with notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821693996.9U CN209012276U (en) | 2018-10-19 | 2018-10-19 | A kind of angular contact ball bearing pre-tightening mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821693996.9U CN209012276U (en) | 2018-10-19 | 2018-10-19 | A kind of angular contact ball bearing pre-tightening mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209012276U true CN209012276U (en) | 2019-06-21 |
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ID=66839100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821693996.9U Active CN209012276U (en) | 2018-10-19 | 2018-10-19 | A kind of angular contact ball bearing pre-tightening mechanism |
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| CN (1) | CN209012276U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483024A (en) * | 2021-07-14 | 2021-10-08 | 珠海格力电器股份有限公司 | Sliding sleeve structure and electric spindle |
-
2018
- 2018-10-19 CN CN201821693996.9U patent/CN209012276U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483024A (en) * | 2021-07-14 | 2021-10-08 | 珠海格力电器股份有限公司 | Sliding sleeve structure and electric spindle |
| CN113483024B (en) * | 2021-07-14 | 2022-06-17 | 珠海格力电器股份有限公司 | Sliding sleeve structure and electric spindle |
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