CN206364639U - A kind of bearing arrangement of vertical machine - Google Patents
A kind of bearing arrangement of vertical machine Download PDFInfo
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- CN206364639U CN206364639U CN201621384120.7U CN201621384120U CN206364639U CN 206364639 U CN206364639 U CN 206364639U CN 201621384120 U CN201621384120 U CN 201621384120U CN 206364639 U CN206364639 U CN 206364639U
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- bearing
- ball bearing
- angular contact
- row angular
- electric motor
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Abstract
The utility model discloses a kind of bearing arrangement of vertical machine, including rotating shaft, electric motor end cap, upper ball cover on electric motor end cap, lower ball cover on electric motor end cap, bearing group between upper ball cover and lower ball cover, the rotating shaft is provided with fixture, the fixture limits bearing group sliding axially relative to rotating shaft, the bearing group is made up of a deep groove ball bearing and a single-row angular contact ball bearing, deep groove ball bearing is same width with unidirectional angular contact ball bearing, internal diameter identical bearing, stepped first mounting hole and second mounting hole different provided with internal diameter size on electric motor end cap, the deep groove ball bearing is connected with the first mounting hole interference fit, the single-row angular contact ball bearing and second installs interporal lacuna mating connection, single-row angular contact ball bearing is installed towards suffered axial force direction.The bearing arrangement manufacturing cost is low, can bear axial load, while having higher nominal rotating speed.
Description
Technical field
The utility model is related to vertical machine technical field, specifically a kind of thrust bearing for vertical machine.
Background technology
The bearing arrangement that vertical machine bears thrust is subjected to axial thrust, motor unilateral magnetic force and load transmission
Radial load.Notification number discloses a kind of bearing arrangement of direct current vertical motor for CN102510161A patent of invention, including turns
Axle, bearing end cover, bearing holder (housing, cover), bearing group and internal bearing cover, bearing holder (housing, cover) are assemblied in rotating shaft by bearing group supporting, in bearing group
Internal bearing cover is assembled in side seal, and bearing group outer side seal assembling bearing end cover, the bearing group is main by two back-to-back configurations
Single-row angular contact bearing composition.The nested structure is solved by the way of two single-row angular contact ball bearings are installed in back-to-back combination
The problem of vertical machine bears axial thrust.But, due to being influenceed by the pretightning force inside the bearing group, bearing it is specified
The single single-row angular contact ball bearing reduction 20-30% of rotating ratio, it is impossible to using on high-revolving vertical machine.Simultaneously because single
Row angular contact ball bearing Internal and external cycle raceway is complex-shaped, and manufacture difficulty is high, and purchasing price is high, while using two single-row angular contacts
Ball bearing inevitably results in big-and-middle-sized vertical machine manufacturing cost and risen.
Utility model content
The utility model provides a kind of rated speed height, the thrust bearing of the low vertical machine of manufacturing cost.
To achieve the above objectives, using following technical scheme：
A kind of bearing arrangement of vertical machine, including rotating shaft, electric motor end cap, the upper ball cover on electric motor end cap,
Set in lower ball cover on electric motor end cap, the bearing group between upper ball cover and lower ball cover, the rotating shaft
There is fixture, the fixture limits bearing inner race sliding axially relative to rotating shaft, and the bearing group is by a deep-groove ball axle
Hold and constituted with a single-row angular contact ball bearing, the deep groove ball bearing is same width, internal diameter phase with single-row angular contact ball bearing
Stepped first mounting hole and second mounting hole different provided with internal diameter size, described on same bearing, the electric motor end cap
Deep groove ball bearing is connected with the first mounting hole interference fit, and the single-row angular contact ball bearing and second installs interporal lacuna cooperation company
Connect, the single-row angular contact ball bearing is installed towards suffered axial force direction.
Diameter big 0.5~1mm of the internal diameter of second mounting hole than single-row angular contact ball bearing outer ring.Ensure single-row angle
Contact ball bearing bears sufficiently small radial load.
In order to prevent the lubricating grease in lower ball cover from entering in motor internal, the lower ball cover to be provided with sealing ring.
The thrust bearing that this nested structure is combined using deep groove ball bearing, single-row angular contact ball bearing, single single-row angle
Contact ball bearing improves 20-30% than the rated speed that two row combine the single-row angular contact ball bearing installed back-to-back, and with wide
Degree series, the rated speed of the identical deep groove ball bearing of internal diameter are higher by 10% or so than single-row single-row angular contact ball bearing.Therefore, it is deep
Ditch ball bearing and the thrust bearing of single-row angular contact ball bearing combination combine the single-row angular contact installed back-to-back with two row
Ball bearing structure is compared, and rated speed can improve 20-30%, it is adaptable to high-revolving motor.
Mounting hole on electric motor end cap is divided into two ladder circle post holes of different sizes, make the outer ring of deep groove ball bearing with
First mounting hole is interference fitted, and single-row angular contact ball bearing and second is installed interporal lacuna cooperation.On output end is arranged on
Deep groove ball bearing can bear the radial load of motor unilateral magnetic force and load transmission when the vertical machine at end is normally run, and single-row
Angular contact ball bearing bears the gravity of rotating shaft and load is added to the axial thrust straight down of machine shaft, and deep groove ball bearing can
Bear less axial force straight up.By the decomposition of load, the load of single bearing is reduced, the use of bearing is ensured
Life-span.
Because single-row angular contact ball bearing Internal and external cycle rolls complex-shaped, manufacturing cost height, and deep groove ball bearing Internal and external cycle is rolled
Road shape is relatively easy, and manufacturing cost is low.The price of single deep groove ball bearing is more left than single single-row angular contact ball bearing low 50%
It is right.Therefore the thrust bearing combined using deep groove ball bearing, single-row angular contact ball bearing combines installation back-to-back with two row
Single-row angular contact ball bearing structure compare, bearing purchase cost can reduce by 20% or so.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
With reference to embodiment, the utility model is described in further detail：
A kind of bearing arrangement of vertical machine as shown in Figure 1, including rotating shaft electric motor end cap 2, on electric motor end cap 2
Upper ball cover 1, the lower ball cover 5 on electric motor end cap, the bearing group between upper ball cover 1 and lower ball cover 5
34, the rotating shaft 6 is provided with fixture 7, and the fixture 7 limits the sliding axially relative to rotating shaft 6 of bearing group 34, the axle
Group 34 is held to be made up of a deep groove ball bearing 3 and a single-row angular contact ball bearing 4.The deep groove ball bearing 3 and single-row corner connection
It is same width, internal diameter identical bearing to touch ball bearing 4, on the electric motor end cap 2 it is stepped provided with internal diameter size it is different the
One mounting hole 21 and the second mounting hole 22, the deep groove ball bearing 3 are connected with the first mounting hole 21 interference fit, the single-row angle
The gap of 4 and second mounting hole of contact ball bearing 22 is connected, and the single-row angular contact ball bearing 4 is towards suffered axial force side
To installation.
When vertical machine output end is arranged on upper end, single-row angular contact ball bearing 4 is installed facing away from lower during installation, Ke Yicheng
By downward axial force.When motor is normally run, bearing group 34 is primarily subjected to come the radial load and straight down of the transmission of the axis of rotation 6
Axial force, deep groove ball bearing 3 can bear the radial load of motor unilateral magnetic force and load transmission, and single-row angular contact ball bearing
4 bear the gravity of rotating shaft and load is added to the axial thrust straight down of machine shaft, deep groove ball bearing can bear it is vertical to
On less axial force.By the decomposition of load, the load of single bearing is reduced, the service life of bearing is ensured.When vertical
When formula motor output end is arranged on lower end, single-row angular contact ball bearing installation direction is opposite.
Diameter big 0.5~1mm of the internal diameter of second mounting hole 22 than the single-row outer ring of angular contact ball bearing 4.Ensure single
The radial load that row angular contact ball bearing 4 is born is sufficiently small.Sealing ring 8 is installed in the lower ball cover 5.Prevent lower ball cover 5
Interior lubricating grease enters motor internal.This set bearing arrangement can be used on high-revolving vertical machine.
Claims (3)
1. a kind of bearing arrangement of vertical machine, including rotating shaft, electric motor end cap, the upper ball cover on electric motor end cap, peace
Lower ball cover on electric motor end cap, the bearing group between upper ball cover and lower ball cover, the rotating shaft are provided with
Fixture, the fixture limits bearing group sliding axially relative to the rotating shaft, it is characterised in that：The bearing group is by one
Individual deep groove ball bearing and a single-row angular contact ball bearing are constituted, and the deep groove ball bearing is with the single-row angular contact ball bearing
It is stepped provided with different the first mounting hole of internal diameter size and the on same width, internal diameter identical bearing, the electric motor end cap
Two mounting holes, the deep groove ball bearing is connected with first mounting hole interference fit, the single-row angular contact ball bearing and institute
The mating connection of the second installation interporal lacuna is stated, the single-row angular contact ball bearing is installed towards suffered axial force direction.
2. the bearing arrangement of vertical machine as claimed in claim 1, it is characterised in that：The internal diameter of second mounting hole is more than institute
State 0.5~1mm of single-row angular contact ball bearing outer ring diameter.
3. the bearing arrangement of vertical machine as claimed in claim 1, it is characterised in that：Sealing is installed in the lower ball cover
Circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621384120.7U CN206364639U (en) | 2016-12-16 | 2016-12-16 | A kind of bearing arrangement of vertical machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621384120.7U CN206364639U (en) | 2016-12-16 | 2016-12-16 | A kind of bearing arrangement of vertical machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206364639U true CN206364639U (en) | 2017-07-28 |
Family
ID=59374459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621384120.7U Active CN206364639U (en) | 2016-12-16 | 2016-12-16 | A kind of bearing arrangement of vertical machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206364639U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112713693A (en) * | 2020-12-22 | 2021-04-27 | 上海电气集团上海电机厂有限公司 | High-rotating-speed heavy-load rolling bearing device installed at 45-degree inclination for motor |
-
2016
- 2016-12-16 CN CN201621384120.7U patent/CN206364639U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112713693A (en) * | 2020-12-22 | 2021-04-27 | 上海电气集团上海电机厂有限公司 | High-rotating-speed heavy-load rolling bearing device installed at 45-degree inclination for motor |
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