CN206257169U - A kind of main shaft bearing for Digit Control Machine Tool - Google Patents
A kind of main shaft bearing for Digit Control Machine Tool Download PDFInfo
- Publication number
- CN206257169U CN206257169U CN201621305622.6U CN201621305622U CN206257169U CN 206257169 U CN206257169 U CN 206257169U CN 201621305622 U CN201621305622 U CN 201621305622U CN 206257169 U CN206257169 U CN 206257169U
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- Prior art keywords
- main shaft
- bearing
- shaft core
- machine tool
- axle sleeve
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Abstract
The utility model discloses a kind of main shaft bearing for Digit Control Machine Tool, including main shaft core, bearing, axle sleeve, the internal diameter at the axle sleeve two ends is more than center section internal diameter, the main shaft core sidewall surfaces are low stepped in centre two ends high being adapted with sleeve lining, the main shaft core is rolled with axle sleeve by bearing in axle sleeve and is connected, the main shaft core radial direction runs through some oil guiding holes, the pore size at the oil guiding hole two ends is different, and hole wall surface gradually transition, the oil guiding hole hole wall surface is provided with screw thread.Main shaft bearing for Digit Control Machine Tool of the present utility model, lubricating oil is squeezed into oil guiding hole one end in pressure difference effect Lower shaft sleeve, and accelerate lubricating oil flow speed from other end outflow, because main shaft core is that metal material is manufactured and specific heat capacity is larger, beneficial to lubricating oil cooling more further, prevent main shaft bearing from overheating, improve Digit Control Machine Tool machining accuracy.
Description
Technical field
The utility model is related to a kind of machine tool accessory, and in particular to a kind of bearing for lathe.
Background technology
Bearing is a kind of important spare part in contemporary plant equipment, and its major function is the mechanical rotary body of support, is reduced
Coefficient of friction in its motion process, and ensure its rotating accuracy, for machine tooling, the stability of bearing revolution is direct
The precision of lathe is determined, and machine tooling is typically all the operating of big load, bearing operation very high speed, bearing is harsh
It is easy to superheating phenomenon occur under operating condition, reduces the precision of machine tooling.
The content of the invention
Goal of the invention：The purpose of this utility model is in view of the shortcomings of the prior art, there is provided one kind is used for Digit Control Machine Tool
Main shaft bearing.
Technical scheme：A kind of main shaft bearing for Digit Control Machine Tool described in the utility model, including main shaft core, bearing,
Axle sleeve, the internal diameter at the axle sleeve two ends is more than center section internal diameter, and the main shaft core sidewall surfaces are to be adapted with sleeve lining
Low stepped in centre two ends high, the main shaft core is connected by bearing in axle sleeve with axle sleeve rolling, the main shaft core
Radial direction is through there is some oil guiding holes, and the pore size at the oil guiding hole two ends is different, and hole wall surface gradually transition, described
Oil guiding hole hole wall surface is provided with screw thread, and lubricating oil is full of in the confined space that the axle sleeve is constituted with main shaft core, bearing, described to lead
The larger one end bore dia in oilhole aperture is 2~3mm.
Preferably, some oil guiding holes are arranged in parallel.
Preferably, some oil guiding holes are arranged in a mutually vertical manner.
Preferably, 5 ° each other~15 ° settings of oil guiding hole axial direction often described in adjacent two.
Preferably, the screw thread of the oil guiding hole hole wall surface is Archimedes's threaded line.
Preferably, the main shaft core is stainless steel main shaft core.
Beneficial effect：A kind of main shaft bearing for Digit Control Machine Tool of the present utility model, main shaft core and the supporting rank of bearing
Trapezoidal shape structure prevents lathe main shaft core in operation process from sidesway occurring, and the oil guiding hole through main shaft core is due to the aperture at two ends
Difference, the lubrication oil flow rate that oil guiding hole two ends are flowed through when main shaft core rotates at a high speed is different, and the lubricating oil pressure of hole end surface is different,
Lubricating oil is squeezed into oil guiding hole one end in pressure difference effect Lower shaft sleeve, and accelerates lubricating oil flow speed from other end outflow,
Because main shaft core is that metal material is manufactured and specific heat capacity is larger, beneficial to lubricating oil cooling more further, main shaft bearing mistake is prevented
Heat, improves Digit Control Machine Tool machining accuracy.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Specific embodiment
Technical solutions of the utility model are described in detail below, but protection domain of the present utility model is not limited to
The embodiment.
As shown in figure 1, a kind of main shaft bearing for Digit Control Machine Tool, including main shaft core 1, bearing 2, axle sleeve 3,3 liang of axle sleeve
The internal diameter at end is more than center section internal diameter, the low rank in the centre two ends high that the sidewall surfaces of main shaft core 1 are with the inwall of axle sleeve 3 is adapted
Scalariform, main shaft core 1 is rolled with axle sleeve 3 by bearing 2 in axle sleeve 3 and is connected, and the radial direction of main shaft core 1 runs through some Oil Guides
Hole 4, the pore size at the two ends of oil guiding hole 4 is different, and hole wall surface gradually transition, and the hole wall surface of oil guiding hole 4 is provided with screw thread so that
Lubricating oil is conducive to radiating with the increase of the hole wall contact surface of oil guiding hole 4, in the confined space that axle sleeve 3 is constituted with main shaft core 1, bearing 2
Full of lubricating oil, the larger one end bore dia in the aperture of oil guiding hole 4 is 2~3mm, some oil guiding holes 4 can with arranged in parallel or
It is arranged in a mutually vertical manner, to improve lubricating oil flow effect per adjacent two axial directions of oil guiding hole 4,5 ° each other~15 ° settings,
When the screw thread of the hole wall surface of oil guiding hole 4 is Archimedes's threaded line Oil Guide effect preferably, main shaft core 1 and the supporting rank of bearing 2
Trapezoidal shape structure prevents lathe main shaft core 1 in operation process from sidesway occurring, and the oil guiding hole 4 through main shaft core 1 is due to two ends
Aperture is different, and the lubrication oil flow rate that the two ends of oil guiding hole 4 are flowed through when main shaft core 1 rotates at a high speed is different, the lubrication pressure of hole end surface
Strong different, lubricating oil is squeezed into the one end of oil guiding hole 4 in pressure difference effect Lower shaft sleeve 3, and accelerates lubricating oil from other end outflow
Flowing velocity, because main shaft core 1 is that metal material is manufactured and specific heat capacity is larger, main shaft core 1 is stainless steel main shaft core, beneficial to lubrication
Oil cooling more further, prevents main shaft bearing from overheating, and improves Digit Control Machine Tool machining accuracy.
Although as described above, having been represented with reference to specific preferred embodiment and having described the utility model, it must not
It is construed to the limitation to the utility model itself.The spirit and scope of the present utility model of appended claims definition are not being departed from
Under the premise of, can various changes can be made in the form and details to it.
Claims (6)
1. a kind of main shaft bearing for Digit Control Machine Tool, it is characterised in that：Including main shaft core (1), bearing (2), axle sleeve (3), institute
The internal diameter at axle sleeve (3) two ends is stated more than center section internal diameter, main shaft core (1) sidewall surfaces are mutually to be fitted with axle sleeve (3) inwall
Low stepped in the centre two ends high answered, the main shaft core (1) is rolled with axle sleeve (3) by bearing (2) in axle sleeve (3) and connected
Connect, main shaft core (1) radial direction is through there are some oil guiding holes (4), and the pore size at oil guiding hole (4) two ends is different,
And hole wall surface gradually transition, oil guiding hole (4) hole wall surface is provided with screw thread, the axle sleeve (3) and main shaft core (1), bearing
(2) lubricating oil is full of in the confined space of composition, the larger one end bore dia in oil guiding hole (4) aperture is 2~3mm.
2. the main shaft bearing for Digit Control Machine Tool according to claim 1, it is characterised in that：Some oil guiding holes (4)
It is arranged in parallel.
3. the main shaft bearing for Digit Control Machine Tool according to claim 1, it is characterised in that：Some oil guiding holes (4)
It is arranged in a mutually vertical manner.
4. the main shaft bearing for Digit Control Machine Tool according to claim 1, it is characterised in that：Led described in per adjacent two
5 ° each other~15 ° settings of oilhole (4) axial direction.
5. the main shaft bearing for Digit Control Machine Tool according to claim 1, it is characterised in that：Oil guiding hole (4) hole wall
The screw thread on surface is Archimedes's threaded line.
6. the main shaft bearing for Digit Control Machine Tool according to claim 1, it is characterised in that：The main shaft core (1) is not for
Rust steel main shaft core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621305622.6U CN206257169U (en) | 2016-12-01 | 2016-12-01 | A kind of main shaft bearing for Digit Control Machine Tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621305622.6U CN206257169U (en) | 2016-12-01 | 2016-12-01 | A kind of main shaft bearing for Digit Control Machine Tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206257169U true CN206257169U (en) | 2017-06-16 |
Family
ID=59026588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621305622.6U Active CN206257169U (en) | 2016-12-01 | 2016-12-01 | A kind of main shaft bearing for Digit Control Machine Tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206257169U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111408742A (en) * | 2020-03-16 | 2020-07-14 | 珠海格力电器股份有限公司 | Bearing sleeve, electric spindle, machine tool and mounting method thereof |
-
2016
- 2016-12-01 CN CN201621305622.6U patent/CN206257169U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111408742A (en) * | 2020-03-16 | 2020-07-14 | 珠海格力电器股份有限公司 | Bearing sleeve, electric spindle, machine tool and mounting method thereof |
| CN111408742B (en) * | 2020-03-16 | 2021-08-17 | 珠海格力电器股份有限公司 | Bearing sleeve, electric spindle, machine tool and mounting method thereof |
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