CN215317433U - Simple bearing cooling structure for ball cage type motorized spindle - Google Patents
Simple bearing cooling structure for ball cage type motorized spindle Download PDFInfo
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- CN215317433U CN215317433U CN202120531288.0U CN202120531288U CN215317433U CN 215317433 U CN215317433 U CN 215317433U CN 202120531288 U CN202120531288 U CN 202120531288U CN 215317433 U CN215317433 U CN 215317433U
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Abstract
The utility model discloses a simple bearing cooling structure for a ball cage type motorized spindle, which comprises a stator sleeve (1) and is characterized in that: the front end of stator cover (1) is connected with preceding bearing housing (2) and ring and spouts cover (3), preceding bearing housing (2) rotate the front end of supporting main shaft (5) through front end bearing (4), the rear end of stator cover (1) then has connected gradually cooling jacket (6), ring flange (7) and end cover (8) cooling jacket (6) cup joint on back bearing housing (9), and back bearing housing (9) rotate the rear end of supporting main shaft (5) through rear end bearing (10), still be provided with motor (11) in stator cover (1), the stator part and stator cover (1) fixed connection of motor (11), the rotor part then links to each other with main shaft (5) to still be provided with ball cage (12) between stator cover (1) and cooling jacket (6).
Description
Technical Field
The utility model relates to the field of electric spindles, in particular to a simple bearing cooling structure for a ball cage type electric spindle.
Background
The electric spindle is a new technology which integrates a machine tool spindle and a spindle motor into a whole and appears in the field of numerical control machines. The spindle integrates the motor and the machine tool spindle into a whole, so that the spindle part is relatively independent from a transmission system and an integral structure of the machine tool, and can be made into a spindle unit which is commonly called as an electric spindle. For satisfying the design requirement of high rotational speed high accuracy, general electric main shaft can adopt rear end ball cage formula oil mist lubrication structure, and traditional ball cage formula electric main shaft does not generally have special rear bearing cooling structure because structural design's restriction, if need install bearing cooling structure, can select for use spiral cooling tank in the conventionality, but this kind of cooling structure needs to occupy great axial space, and is great to the requirement of space. There is therefore a need for a method or apparatus that addresses the above-mentioned problems.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provides the ball cage type electric main shaft with the bearing cooling structure, which is simple in structure, ingenious in design, reasonable in layout and free of occupying too much axial space.
The technical solution of the utility model is as follows: the utility model provides a simple and easy bearing cooling structure is used to ball cage formula electricity main shaft, includes stator sleeve 1, its characterized in that: the front end of the stator sleeve 1 is connected with a front bearing sleeve 2 and a ring spraying sleeve 3, the front bearing sleeve 2 rotatably supports the front end of a main shaft 5 through a front end bearing 4, the rear end of the stator sleeve 1 is sequentially connected with a cooling sleeve 6, a flange 7 and an end cover 8, the cooling sleeve 6 is sleeved on a rear bearing sleeve 9, the rear bearing sleeve 9 rotatably supports the rear end of the main shaft 5 through a rear end bearing 10, a motor 11 is further arranged in the stator sleeve 1, a stator part of the motor 11 is fixedly connected with the stator sleeve 1, a rotor part is connected with the main shaft 5, a ball cage 12 is further arranged between the stator sleeve 1 and the cooling sleeve 6,
the end cover 8 is provided with a cooling medium inlet 13, the cooling medium inlet 13 is communicated with a front end cooling cavity 14 through a liquid inlet pipeline, the liquid inlet pipeline is formed by sequentially connecting pipelines respectively arranged in the end cover 8, the flange plate 7, the stator sleeve 1 and the front bearing sleeve 2, the front end cooling cavity 14 is positioned between the front bearing sleeve 2 and the annular spraying sleeve 3, the front end cooling cavity 14) is connected with an opening at one end of a first plunger 15 through a circulating pipeline, the other end of the first plunger 15 is communicated with a rear end cooling cavity 16, the circulating pipeline is formed by sequentially connecting pipelines respectively arranged in the front bearing sleeve 2, the stator sleeve 1 and the flange plate 7, the rear end cooling cavity 16 is positioned between the cooling sleeve 6 and the rear bearing sleeve 9, and the rear end cooling cavity 16 is also connected with a cooling medium outlet 8 arranged on the end cover 8 through a second plunger 17,
Compared with the prior art, the utility model has the following advantages:
this kind of structural style's rzeppa electricity main shaft is with simple and easy bearing cooling structure, its simple structure, design benefit, it is rationally distributed, it is because there is the restriction on the space to traditional rzeppa electricity main shaft, can't set up the problem of traditional cooling structure (spiral cooling bath), a special cooling structure is designed, it utilizes ring spray cover and front bearing cover to form the front end cooling chamber, utilize cooling cover and back bearing cover to form the rear end cooling chamber, and set up coolant's import and export on the end cover, introduce cooling chamber with coolant through admission line and circulating line, and then realize the cooling to the bearing part of rzeppa electricity main shaft. The cooling medium circulation device can realize circulation of the cooling medium at the electric main shaft bearing structure part on the premise of strictly controlling the installation space, can ensure the reliability of the electric main shaft bearing in the working process, and does not occupy too much axial space. Meanwhile, the manufacturing process is simple, the manufacturing cost is low, so that the novel LED lamp has various advantages, is particularly suitable for popularization and application in the field, and has a very wide market prospect.
Drawings
Fig. 1 is a schematic structural view (sectional view one) of an embodiment of the present invention.
Fig. 2 is a schematic structural view (sectional view two) of the embodiment of the present invention.
Fig. 3 is a schematic perspective view of a rear bearing housing portion in an embodiment of the present invention.
Detailed Description
The following description will explain embodiments of the present invention with reference to the accompanying drawings. As shown in fig. 1 to 3: a simple bearing cooling structure for a ball cage type electric spindle comprises a stator sleeve 1, wherein the front end of the stator sleeve 1 is connected with a front bearing sleeve 2 and a ring spraying sleeve 3, the front bearing sleeve 2 rotatably supports the front end of a spindle 5 through a front end bearing 4, the rear end of the stator sleeve 1 is sequentially connected with a cooling sleeve 6, a flange 7 and an end cover 8, the cooling sleeve 6 is sleeved on a rear bearing sleeve 9, the rear bearing sleeve 9 rotatably supports the rear end of the spindle 5 through a rear end bearing 10, a motor 11 is further arranged in the stator sleeve 1, a stator part of the motor 11 is fixedly connected with the stator sleeve 1, a rotor part is connected with the spindle 5, and a ball cage 12 is further arranged between the stator sleeve 1 and the cooling sleeve 6,
the end cover 8 is provided with a cooling medium inlet 13, the cooling medium inlet 13 is communicated with a front end cooling cavity 14 through a liquid inlet pipeline, the liquid inlet pipeline is formed by sequentially connecting pipelines respectively arranged in the end cover 8, the flange plate 7, the stator sleeve 1 and the front bearing sleeve 2, the front end cooling cavity 14 is positioned between the front bearing sleeve 2 and the annular spraying sleeve 3, the front end cooling cavity 14) is connected with an opening at one end of a first plunger 15 through a circulating pipeline, the other end of the first plunger 15 is communicated with a rear end cooling cavity 16, the circulating pipeline is formed by sequentially connecting pipelines respectively arranged in the front bearing sleeve 2, the stator sleeve 1 and the flange plate 7, the rear end cooling cavity 16 is positioned between the cooling sleeve 6 and the rear bearing sleeve 9, and the rear end cooling cavity 16 is also connected with a cooling medium outlet 8 arranged on the end cover 8 through a second plunger 17,
The simple bearing cooling structure for the rzeppa electric spindle provided by the embodiment of the utility model has the following working process: connecting a cooling medium pipeline with pressure to a cooling medium inlet 13, wherein the cooling medium enters a liquid inlet pipeline through the cooling medium inlet 13 and enters a front end cooling cavity 14 from the liquid inlet pipeline to cool the front end bearing 4; the cooling medium enters the rear end cooling cavity 16 through a circulating pipeline to cool the rear end bearing 10, and is finally discharged through a cooling medium outlet 18 to realize circulation;
in other words, in the working process of the electric spindle, the cooling medium circularly flows at the front end bearing 4 and the rear end bearing 10, so that the two bearings keep constant working temperature, thereby improving the working reliability and prolonging the service life of the electric spindle;
mutually matched barrier strips 19 are arranged between the cooling jacket 6 and the rear bearing bush 9, and when the cooling jacket and the rear bearing bush are in an assembled state, the barrier strips are mutually contacted and form a grid in the annular rear end cooling cavity 16; the circulating pipeline is connected with the rear end cooling cavity 16 and the rear end cooling cavity 16 is connected with the cooling medium outlet 18 through a plunger with a hollow structure, namely a first plunger 15 and a second plunger 17; the two plungers 17 are respectively positioned at two sides of the barrier strip 19, and the structure can be reliably connected with the inlet and the outlet of the rear-end cooling cavity, so that the structural design space is effectively saved.
Claims (1)
1. The utility model provides a simple and easy bearing cooling structure is used to ball cage formula electricity main shaft, includes stator cover (1), its characterized in that: the front end of the stator sleeve (1) is connected with a front bearing sleeve (2) and a ring spraying sleeve (3), the front bearing sleeve (2) rotatably supports the front end of a main shaft (5) through a front end bearing (4), the rear end of the stator sleeve (1) is sequentially connected with a cooling sleeve (6), a flange plate (7) and an end cover (8), the cooling sleeve (6) is sleeved on a rear bearing sleeve (9), the rear bearing sleeve (9) rotatably supports the rear end of the main shaft (5) through a rear end bearing (10), a motor (11) is further arranged in the stator sleeve (1), a stator part of the motor (11) is fixedly connected with the stator sleeve (1), a rotor part is connected with the main shaft (5), and a ball cage (12) is further arranged between the stator sleeve (1) and the cooling sleeve (6),
the end cover (8) is provided with a cooling medium inlet (13), the cooling medium inlet (13) is communicated with a front end cooling cavity (14) through a liquid inlet pipeline, the liquid inlet pipeline is formed by sequentially connecting pipelines respectively arranged in the end cover (8), the flange plate (7), the stator sleeve (1) and the front bearing sleeve (2), the front end cooling cavity (14) is positioned between the front bearing sleeve (2) and the annular spraying sleeve (3), the front end cooling cavity (14) is connected with one end opening of a first plunger (15) through a circulating pipeline, the other end of the first plunger (15) is communicated with a rear end cooling cavity (16), the circulating pipeline is formed by sequentially connecting pipelines respectively arranged in the front bearing sleeve (2), the stator sleeve (1) and the flange plate (7), and the rear end cooling cavity (16) is positioned between the cooling sleeve (6) and the rear bearing sleeve (9), meanwhile, the rear end cooling cavity (16) is also connected with a cooling medium outlet (18) arranged on the end cover (8) through a second plunger (17),
first plunger (15) and second plunger (17) connect between cooling jacket (6) and rear bearing housing (9), all be provided with blend stop (19) that match each other in cooling jacket (6) and rear bearing housing (9), first plunger (15) and second plunger (17) are located the both sides of blend stop (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120531288.0U CN215317433U (en) | 2021-03-15 | 2021-03-15 | Simple bearing cooling structure for ball cage type motorized spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120531288.0U CN215317433U (en) | 2021-03-15 | 2021-03-15 | Simple bearing cooling structure for ball cage type motorized spindle |
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| Publication Number | Publication Date |
|---|---|
| CN215317433U true CN215317433U (en) | 2021-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120531288.0U Active CN215317433U (en) | 2021-03-15 | 2021-03-15 | Simple bearing cooling structure for ball cage type motorized spindle |
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| Country | Link |
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| CN (1) | CN215317433U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112894481A (en) * | 2021-03-15 | 2021-06-04 | 通用技术集团大连机床有限责任公司 | Simple bearing cooling structure for ball cage type motorized spindle |
-
2021
- 2021-03-15 CN CN202120531288.0U patent/CN215317433U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112894481A (en) * | 2021-03-15 | 2021-06-04 | 通用技术集团大连机床有限责任公司 | Simple bearing cooling structure for ball cage type motorized spindle |
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