CN206305855U - Electric spindle based on dynamic pressure sliding bearing - Google Patents
Electric spindle based on dynamic pressure sliding bearing Download PDFInfo
- Publication number
- CN206305855U CN206305855U CN201621376517.1U CN201621376517U CN206305855U CN 206305855 U CN206305855 U CN 206305855U CN 201621376517 U CN201621376517 U CN 201621376517U CN 206305855 U CN206305855 U CN 206305855U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- sliding bearing
- electro spindle
- hydrodynamic sliding
- bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 238000001816 cooling Methods 0.000 claims abstract description 27
- 239000002826 coolant Substances 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 230000005611 electricity Effects 0.000 claims abstract description 8
- 238000005461 lubrication Methods 0.000 claims description 8
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 claims description 5
- 229910000906 Bronze Inorganic materials 0.000 claims description 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 3
- 235000011613 Pinus brutia Nutrition 0.000 claims description 3
- 241000018646 Pinus brutia Species 0.000 claims description 3
- 239000010974 bronze Substances 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000008450 motivation Effects 0.000 claims 1
- 238000005096 rolling process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000004080 punching Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The utility model discloses an electricity main shaft based on dynamic pressure slide bearing, including electricity main shaft shell, the main shaft, including a motor, an end cap, a controller, and a cover plate, lubricated and cooling system, liquid dynamic pressure slide bearing and back liquid dynamic pressure slide bearing before the front portion of main shaft and rear end are installed respectively, it is rotatory with main shaft fixed connection and drive main shaft, it is lubricated and cooling system includes preceding nozzle, back nozzle and cooling jacket, preceding nozzle and preceding liquid dynamic pressure slide bearing intercommunication and run through electricity main shaft shell, back nozzle and back liquid dynamic pressure slide bearing intercommunication and run through electricity main shaft shell, the cooling oil entry and the coolant oil export that are equipped with the coolant oil passageway and communicate with the coolant oil passageway on the cooling jacket. The utility model discloses throw open traditional motorized spindle design theory based on antifriction bearing, provide an motorized spindle based on dynamic pressure slide bearing, can bear bigger rotational speed to can effectively improve life, can also bear bigger load, have that load capacity is high, the precision is high, compact structure, longe-lived characteristics.
Description
Technical field
The utility model is related to a kind of electro spindle based on hydrodynamic sliding bearing, belongs to electro spindle technical field.
Background technology
Electro spindle is a kind of integral unit that high-speed electric expreess locomotive is built in main shaft.The rotor of motor drives main shaft to revolve together
Turn, realize electromechanical integration.It is this to cancel the common mechanical devices such as V belt translation and gear drive, realize lathe " Zero-drive Chain "
, using more and more extensively in modern machine design, its compact conformation, rotating speed are high, quality is small, start and stop are fast for the gear unit of structure
The characteristics of speed, operating stabilization, makes the first-selected structure of high-speed main spindle.And traditional electro spindle is based primarily upon rolling bearing
Design concept, limits the further raising of its rotating speed, and bearing capacity is also limited.
The content of the invention
Technical problem to be solved in the utility model is：Overcome the deficiencies in the prior art, there is provided a kind of load capacity is high,
High precision, compact conformation, the electro spindle based on hydrodynamic sliding bearing of long lifespan.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is：A kind of electricity based on hydrodynamic sliding bearing
Main shaft, including electro spindle shell, main shaft, motor, lubrication and cooling system, the anterior and rear end of main shaft are separately installed with preceding liquid
Body hydrodynamic sliding bearing and rear Hydrodynamic Sliding Bearing, forward and backward Hydrodynamic Sliding Bearing are led with electro spindle shell, positioned at electricity
The bearing (ball) cover at shaft housing two ends collectively forms overall annular seal space, and motor is arranged on preceding Hydrodynamic Sliding Bearing and rear liquid
Between body hydrodynamic sliding bearing, the motor rotor is fixedly connected with main shaft and drives main shaft to rotate, the motor stator
Positioned at motor rotor outside, lubrication and cooling system include front nozzle, rear nozzle and coolant jacket, front nozzle and preceding Hydrodynamic
Sliding bearing is connected and through electro spindle shell, and rear nozzle is connected and through electro spindle shell with rear Hydrodynamic Sliding Bearing,
The cooling is set between motor stator and electro spindle shell, and coolant jacket is provided with cooling oil passage and leads to cooling oil
The cooling oil-in of road connection and cooling-oil outlet, cooling oil-in and cooling-oil outlet run through electro spindle shell.
Further for axially supporting is provided, the rear and front end of the main shaft respectively sets an angular contact ball bearing, respectively
Preceding angular contact ball bearing and rear angular contact ball bearing, forward and backward angular contact ball bearing are located at forward and backward Hydrodynamic in above-mentioned annular seal space
The outside of sliding bearing, to provide axial supporting, prevents the axial movement of electro spindle.
Further, the angular contact ball bearing is ceramic angular contact ball bearing that contact angle is 25 °.
Positioning is provided further for motor, the both sides of the main shaft upper motor are also equipped with spacer and collar,
Spacer is used for the positioning of motor stator, and collar is used for the positioning of rotor.
Further, the inside of the main shaft is provided with disk spring formula pine tool-broaching mechanism, and moment of torsion is born during for being driven.
Further, the bearing shell of the main shaft is made of axle casting aluminum-bronze material, to obtain enough tensile strength and punchings
Hit toughness.
Further for smaller profile, efficiency higher is obtained, the motor uses autosynchronous motor.
Above-mentioned technical proposal is employed, the utility model casts aside traditional electric spindle design theory based on rolling bearing,
Using the architectural schemes based on hydrodynamic sliding bearing, it is proposed that a kind of electro spindle based on hydrodynamic sliding bearing, relative to rolling
The electro spindle of bearing, the electro spindle based on hydrodynamic sliding bearing of the present utility model can bear bigger rotating speed, so as to have
Effect improves service life, while bigger load can also be born, with load capacity is high, high precision, compact conformation, long lifespan
Feature；The utility model has rational lubrication and cooling system, for the work of electro spindle provides a good building ring
Border, can greatly reduce cost, create bigger profit；The utility model adds a pair of angular contacts and is combined at main shaft two ends
Ceramic ball bearing is to provide axial supporting, so that electro spindle can not only bear radial load, moreover it is possible to bear axial load, from
And rotating speed higher can be born, it is greatly enhanced the service life of electro spindle.
Brief description of the drawings
Fig. 1 is the front sectional view of the electro spindle based on hydrodynamic sliding bearing of the present utility model；
Fig. 2 is the installation diagram of the electro spindle based on hydrodynamic sliding bearing of the present utility model；
Fig. 3 is the structural representation of main shaft of the present utility model；
In figure, 1, main shaft, 2, lock-screw, 3, bearing (ball) cover, 4, lock-screw, 5, preceding angular contact ball bearing, 6, preceding liquid
Body hydrodynamic sliding bearing, 7, front nozzle, 8, spacer, 9, collar, 10, cooling oil-in, 11, electro spindle shell, 12, coolant jacket,
13rd, motor stator, 14, motor rotor, 15, cooling-oil outlet, 16, rear nozzle, 17, rear Hydrodynamic Sliding Bearing, 18,
Rear angular contact ball bearing.
Specific embodiment
In order that content of the present utility model is easier to be clearly understood, below according to specific embodiment and with reference to attached
Figure, is described in further detail to the utility model.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of electro spindle based on hydrodynamic sliding bearing, including electro spindle shell 11, main shaft
1st, motor, lubrication and cooling system, the anterior and rear end of main shaft 1 are separately installed with preceding Hydrodynamic Sliding Bearing 6 and rear liquid
Body hydrodynamic sliding bearing 17, forward and backward Hydrodynamic Sliding Bearing and electro spindle shell 11, the axle positioned at the two ends of electro spindle shell 11
Socket end lid 3 collectively forms overall annular seal space, and motor is arranged on preceding Hydrodynamic Sliding Bearing 6 and rear Hydrodynamic sliding axle
Hold between 17, the motor rotor 14 is fixedly connected with main shaft 1 and drives main shaft 1 to rotate, and the motor stator 13 is located at
The outside of motor rotor 14, lubrication and cooling system include front nozzle 7, rear nozzle 16 and coolant jacket 12, front nozzle 7 and preceding liquid
Hydrodynamic sliding bearing 6 is connected and through electro spindle shell 11, and rear nozzle 16 is connected and run through with rear Hydrodynamic Sliding Bearing 17
Electro spindle shell 11, the coolant jacket 12 is arranged between motor stator 13 and electro spindle shell 11, and coolant jacket 12 is provided with
Cooling oil passage and the cooling oil-in 10 with cooling oil channel connection and cooling-oil outlet 15, cool down oil-in 10 and cooling oil
Outlet 15 runs through electro spindle shell 11.
Further, as shown in figure 1, bearing (ball) cover 3 is fixed on electro spindle shell 11 by trip bolt 4, bearing (ball) cover 3
Give whole electric chief axis system one positioning fixation, and the effect of sealing is provided；Angular contact ball bearing 5 before the end of main shaft 1
With cushion block is further fixed at rear angular contact ball bearing 18, and cushion block is fixed by lock-screw 2, cushion block gives preceding angular contact ball axle
Hold 5 and 18 1 effects of positioning of rear angular contact ball bearing.
Preferably, as shown in figure 1, the rear and front end of the main shaft 1 respectively sets an angular contact ball bearing, respectively preceding corner connection
Ball bearing 5 and rear angular contact ball bearing 18 are touched, forward and backward angular contact ball bearing is located at forward and backward Hydrodynamic in above-mentioned annular seal space and slides
The outside of dynamic bearing, to provide axial supporting, prevents the axial movement of electro spindle.
Further, the angular contact ball bearing is ceramic angular contact ball bearing that contact angle is 25 °.
Preferably, as shown in figure 1, the both sides of the upper motor of the main shaft 1 are also equipped with spacer 8 and collar 9, spacer 8 is used
In the positioning of motor stator 13, collar 9 is used for the positioning of rotor 14.
Alternatively, as shown in Figure 1, Figure 3, the main shaft 1 is hollow shaft, and the inside of main shaft 1 is provided with disk spring formula pine
Tool-broaching mechanism, bears moment of torsion during for being driven.
Preferably, the bearing shell of the main shaft 1 is made of axle casting aluminum-bronze material, to obtain enough tensile strength and punchings
Hit toughness.
Alternatively, the motor uses autosynchronous motor.
The utility model casts aside traditional electric spindle design theory based on rolling bearing, using based on hydrodynamic sliding bearing
Architectural schemes, it is proposed that a kind of electro spindle based on hydrodynamic sliding bearing, according to electric spindle design requirement and general principle from
Each several part part in structure to high-speed electric main shaft is designed, calculates and checks to determine relevant parameter；Relative to the axis of rolling
The electro spindle for holding, the electro spindle based on hydrodynamic sliding bearing of the present utility model can bear bigger rotating speed, so as to effective
Service life is improved, while bigger load can also be born, with load capacity is high, the spy of high precision, compact conformation, long lifespan
Point；The utility model has rational lubrication and cooling system, for the work of electro spindle provides a good working environment,
Cost can be greatly reduced, bigger profit is created；The utility model adds a pair of angular contact composite ceramics at main shaft two ends
Porcelain ball bearing is to provide axial supporting, so that electro spindle can not only bear radial load, moreover it is possible to bear axial load, so that
Rotating speed higher can be born, the service life of electro spindle is greatly enhanced.
Particular embodiments described above, the technical problem solved to the utility model, technical scheme and beneficial effect are entered
Go further description, should be understood that and the foregoing is only specific embodiment of the utility model, and without
It is all within spirit of the present utility model and principle in limitation the utility model, any modification, equivalent substitution and improvements done
Deng should be included within protection domain of the present utility model.
Claims (7)
1. a kind of electro spindle based on hydrodynamic sliding bearing, it is characterised in that：Including electro spindle shell (11), main shaft (1), electronic
Machine, lubrication and cooling system, the anterior and rear end of main shaft (1) are separately installed with preceding Hydrodynamic Sliding Bearing (6) and rear liquid
Hydrodynamic sliding bearing (17), forward and backward Hydrodynamic Sliding Bearing and electro spindle shell (11), positioned at electro spindle shell (11) two ends
Bearing (ball) cover (3) collectively form overall annular seal space, motor is arranged on preceding Hydrodynamic Sliding Bearing (6) and rear liquid is moved
Between pressure sliding bearing (17), the motor rotor (14) is fixedly connected with main shaft (1) and drives main shaft (1) to rotate, described
Motor stator (13) positioned at motor rotor (14) outside, lubrication and cooling system include front nozzle (7), rear nozzle (16) and
Coolant jacket (12), front nozzle (7) is connected and through electro spindle shell (11), rear nozzle with preceding Hydrodynamic Sliding Bearing (6)
(16) connected with rear Hydrodynamic Sliding Bearing (17) and through electro spindle shell (11), the coolant jacket (12) is arranged on electronic
Between machine stator (13) and electro spindle shell (11), coolant jacket (12) be provided with cooling oil passage and with cooling oil channel connection
Cooling oil-in (10) and cooling-oil outlet (15), cooling oil-in (10) and cooling-oil outlet (15) are through electro spindle shell
(11)。
2. the electro spindle based on hydrodynamic sliding bearing according to claim 1, it is characterised in that：Before the main shaft (1)
Two ends respectively set an angular contact ball bearing, respectively preceding angular contact ball bearing (5) and rear angular contact ball bearing (18) afterwards, forward and backward
Angular contact ball bearing is located at the outside of forward and backward Hydrodynamic Sliding Bearing in above-mentioned annular seal space, to provide axial supporting, prevents electricity
The axial movement of main shaft.
3. the electro spindle based on hydrodynamic sliding bearing according to claim 2, it is characterised in that：The angular contact ball bearing
It is the ceramic angular contact ball bearing that contact angle is 25 °.
4. the electro spindle based on hydrodynamic sliding bearing according to any one of claims 1 to 3, it is characterised in that：The master
The both sides of axle (1) upper motor are also equipped with spacer (8) and collar (9), spacer (8) for motor stator (13) positioning, axle
Positioning of the ring (9) for rotor (14).
5. the electro spindle based on hydrodynamic sliding bearing according to any one of claims 1 to 3, it is characterised in that：The master
Axle (1) is hollow shaft, and the inside of main shaft (1) being provided with disk spring formula pine tool-broaching mechanism, moment of torsion is born during for being driven.
6. the electro spindle based on hydrodynamic sliding bearing according to any one of claims 1 to 3, it is characterised in that：The master
The bearing shell of axle (1) is made of axle casting aluminum-bronze material, to obtain enough tensile strength and impact toughnesses.
7. the electro spindle based on hydrodynamic sliding bearing according to any one of claims 1 to 3, it is characterised in that：The electricity
Motivation uses autosynchronous motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621376517.1U CN206305855U (en) | 2016-12-15 | 2016-12-15 | Electric spindle based on dynamic pressure sliding bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621376517.1U CN206305855U (en) | 2016-12-15 | 2016-12-15 | Electric spindle based on dynamic pressure sliding bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206305855U true CN206305855U (en) | 2017-07-07 |
Family
ID=59251429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621376517.1U Withdrawn - After Issue CN206305855U (en) | 2016-12-15 | 2016-12-15 | Electric spindle based on dynamic pressure sliding bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206305855U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106425635A (en) * | 2016-12-15 | 2017-02-22 | 常州机电职业技术学院 | Electric spindle based on dynamic pressure sliding bearing |
| US11912424B1 (en) * | 2022-10-06 | 2024-02-27 | Archer Aviation Inc. | Systems and methods for improved gearboxes for eVTOL aircraft |
-
2016
- 2016-12-15 CN CN201621376517.1U patent/CN206305855U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106425635A (en) * | 2016-12-15 | 2017-02-22 | 常州机电职业技术学院 | Electric spindle based on dynamic pressure sliding bearing |
| US11912424B1 (en) * | 2022-10-06 | 2024-02-27 | Archer Aviation Inc. | Systems and methods for improved gearboxes for eVTOL aircraft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170707 Effective date of abandoning: 20180406 |