CN210081273U - Bearing oil-proof structure for vertically mounting lead screw on machine tool - Google Patents
Bearing oil-proof structure for vertically mounting lead screw on machine tool Download PDFInfo
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- CN210081273U CN210081273U CN201920721540.7U CN201920721540U CN210081273U CN 210081273 U CN210081273 U CN 210081273U CN 201920721540 U CN201920721540 U CN 201920721540U CN 210081273 U CN210081273 U CN 210081273U
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- oil
- proof
- bearing
- grease proofing
- lead screw
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Abstract
The utility model relates to a grease proofing structure of bearing of perpendicular installation lead screw of lathe, including setting up the grease proofing dish in the bearing frame top, be equipped with in the middle of the grease proofing dish with the smooth partial interference fit's of lead screw lower extreme screw thread afterbody centre bore, the below of preventing the dish is equipped with the grease proofing cover, and the top of bearing frame is equipped with mounting groove, in the mounting groove is packed into to grease proofing cover lower extreme interference fit, the grease proofing cover top outside is equipped with the grease proofing platform, and grease proofing platform supports at the bearing frame top. The lower end of the screw rod is arranged on the bearing block through a bearing, and a bearing sealing device is arranged below the bearing. The utility model has no special sealing element design, and the oil-proof disc, the oil discharge sleeve and the oil-proof platform do not need to be provided with a sealing element mounting structure, so that the processing cost is low; the interference fit between the components and the screw rod is used for ensuring the oil-proof effect, no special sealing piece is used, the installation is convenient, and the efficiency is high.
Description
Technical Field
The utility model belongs to the technical field of the lathe transmission part, concretely relates to grease proofing structure of bearing of perpendicular installation lead screw of lathe.
Background
At present, most machine tool lead screws and linear rails are lubricated by oil, and due to the action of gravity, lubricating oil can flow downwards along the lead screws to a position between an inner ring and an outer ring of a lead screw supporting bearing when the lead screws are vertically installed, so that lubricating grease smeared when the bearing leaves a factory is diluted and even washed away, and the service life of the bearing is shortened.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a grease proofing structure of bearing of perpendicular installation lead screw of lathe when solving the perpendicular installation of lead screw, lubricating oil can be in the same direction as the lead screw down flow into between the outer lane in the lead screw support bearing, dilutes even and washes away the lubricating grease that the bearing was paintd when dispatching from the factory, reduces bearing life's problem.
The utility model discloses grease proofing structure of bearing of perpendicular installation lead screw of lathe, including setting up the food tray of preventing in the bearing frame top, be equipped with in the middle of the grease proofing dish with the smooth partial interference fit's of lead screw lower extreme screw thread afterbody centre bore, the below of preventing the food tray is equipped with the grease proofing cover, the top of bearing frame is equipped with mounting groove, in grease proofing cover lower extreme interference fit installs mounting groove, the grease proofing cover top outside is equipped with the grease proofing platform, and grease proofing platform supports at the bearing frame top. The lower end of the screw rod is arranged on the bearing block through a bearing, and a bearing sealing device is arranged below the bearing.
Be equipped with the annular groove in the middle of the bottom of preventing the food tray, grease proofing bench top portion stretches into the annular groove, leaves the clearance between grease proofing bench top portion and the annular groove top, leaves the clearance between grease proofing bench outside and the annular groove lateral wall, prevents leaving the clearance between food tray bottom and the bearing frame top. Reduce friction and prolong service life.
And a gap is reserved between the inner hole of the oil-proof sleeve and the outer wall of the lower end of the lead screw. Reduce friction and prolong service life.
The oil-proof disc, the oil-proof sleeve and the oil-proof platform are all made of nylon materials and are low in cost.
The size of the oil-proof disc is not less than the external dimension of the bearing seat.
Compared with the prior art, the utility model has the advantages of:
the special sealing piece design is not needed, the oil-proof disc, the oil discharge sleeve and the oil-proof platform do not need to be provided with a sealing piece mounting structure, and the processing cost is low; the interference fit between the components and the screw rod is used for ensuring the oil-proof effect, no special sealing piece is used, the installation is convenient, and the efficiency is high.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
in the figure: 1. lead screw, 2, prevent the food tray, 3, bearing frame, 4, prevent the oil jacket, 5, mounting groove, 6, prevent oily platform, 7, annular groove.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.
As the grease proofing structure of bearing of lathe vertical installation lead screw shown in fig. 1 and 2, including setting up grease proofing dish 2 in bearing frame 3 top, be equipped with in the middle of grease proofing dish 2 with the smooth partial interference fit's of 1 lower extreme screw thread afterbody centre bore of lead screw, the below of grease proofing dish 2 is equipped with grease proofing cover 4, the top of bearing frame 3 is equipped with mounting groove 5, in grease proofing cover 4 lower extreme interference fit packs into mounting groove 5, the 4 top outsides of grease proofing cover are equipped with grease proofing platform 6, grease proofing platform 6 supports at bearing frame 3 top.
Prevent being equipped with annular groove 7 in the middle of the bottom of food tray 2, grease proofing platform 6 top stretches into annular groove 7, leaves the clearance between grease proofing platform 6 top and the 7 tops of annular groove, leaves the clearance between the 6 outsides of grease proofing platform and the 7 lateral walls of annular groove, prevents leaving the clearance between food tray 2 bottom and the 3 tops of bearing frame.
And a gap is reserved between the inner hole of the oil-proof sleeve 4 and the outer wall of the lower end of the lead screw 1.
The oil-proof disc 2, the oil-proof sleeve 4 and the oil-proof platform 6 are all made of nylon materials.
The oil-proof disc 2 is not smaller than the bearing pedestal 3.
Prevent that food tray 2 installs in preventing oily platform 6 tops, leaves certain clearance between the two and guarantees to prevent that food tray 2 rotates with lead screw 1 together. When 1 need lubricate, lubricating oil flows down along 1 lead screw, because prevent that oil pan 2 and lead screw 1 between be interference fit, clearance undersize between, lubricating oil can't continue to flow down along 1 lead screw, can only prevent that oil pan 2 from flowing out 3 scopes of bearing frame, prevents that lubricating oil from getting into the bearing, and then prevents that lubricating oil from diluting and even rushing away the lubricating grease that the bearing paintd when dispatching from the factory, guarantees bearing life.
In conclusion, the utility model has no special sealing element design, and the oil-proof disc, the oil discharge sleeve and the oil-proof platform do not need to be provided with a sealing element mounting structure, so that the processing cost is low; the interference fit between the components and the screw rod is used for ensuring the oil-proof effect, no special sealing piece is used, the installation is convenient, and the efficiency is high.
In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "up", "down", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description of the present invention rather than requiring the present invention to be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Claims (5)
1. The utility model provides an grease proofing structure of bearing of perpendicular installation lead screw of lathe which characterized in that: including setting up food tray (2) of preventing in bearing frame (3) top, be equipped with in the middle of oil-proof dish (2) with the smooth partial interference fit's of lead screw (1) lower extreme screw thread afterbody centre bore, the below of oil-proof dish (2) is equipped with oil-proof cover (4), the top of bearing frame (3) is equipped with mounting groove (5), in oil-proof cover (4) lower extreme interference fit packing into mounting groove (5), oil-proof cover (4) top outside is equipped with oil-proof platform (6), oil-proof platform (6) support is at bearing frame (3) top.
2. The oil-proof structure for the bearing of the vertically-mounted screw rod of the machine tool according to claim 1 is characterized in that: prevent being equipped with annular groove (7) in the middle of the bottom of food tray (2), oil-proof platform (6) top stretches into annular groove (7), leaves the clearance between oil-proof platform (6) top and annular groove (7) top, leaves the clearance between oil-proof platform (6) outside and annular groove (7) lateral wall, prevents leaving the clearance between food tray (2) bottom and bearing frame (3) top.
3. The oil-proof structure for the bearing of the vertically-mounted screw rod of the machine tool according to claim 1 is characterized in that: and a gap is reserved between the inner hole of the oil-proof sleeve (4) and the outer wall of the lower end of the lead screw (1).
4. The oil-proof structure for the bearing of the vertically-mounted screw rod of the machine tool according to any one of claims 1 to 3, is characterized in that: the oil-proof disc (2), the oil-proof sleeve (4) and the oil-proof platform (6) are all made of nylon materials.
5. The oil-proof structure for the bearing of the vertically-mounted lead screw of the machine tool according to claim 4 is characterized in that: the size of the oil-proof disc (2) is not less than the external size of the bearing seat (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920721540.7U CN210081273U (en) | 2019-05-20 | 2019-05-20 | Bearing oil-proof structure for vertically mounting lead screw on machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920721540.7U CN210081273U (en) | 2019-05-20 | 2019-05-20 | Bearing oil-proof structure for vertically mounting lead screw on machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210081273U true CN210081273U (en) | 2020-02-18 |
Family
ID=69479085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920721540.7U Active CN210081273U (en) | 2019-05-20 | 2019-05-20 | Bearing oil-proof structure for vertically mounting lead screw on machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210081273U (en) |
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2019
- 2019-05-20 CN CN201920721540.7U patent/CN210081273U/en active Active
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