CN202867749U - Nut rotating lead screw device - Google Patents
Nut rotating lead screw device Download PDFInfo
- Publication number
- CN202867749U CN202867749U CN 201220423508 CN201220423508U CN202867749U CN 202867749 U CN202867749 U CN 202867749U CN 201220423508 CN201220423508 CN 201220423508 CN 201220423508 U CN201220423508 U CN 201220423508U CN 202867749 U CN202867749 U CN 202867749U
- Authority
- CN
- China
- Prior art keywords
- roller bearing
- tapered roller
- lead screw
- nut
- oil seal
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Mounting Of Bearings Or Others (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a nut rotating lead screw device which comprises a ball nut body, a flange sleeve, a tapered roller bearing, framework oil seal and a locking component. The ball nut body is arranged in the flange sleeve and forms an installing cavity which is used for placing of the tapered roller bearing. The tapered roller bearing is arranged in the installing cavity and positioned in the installing cavity by the locking component, and the framework oil seal is arranged on the positions of both ends of the installing space. The nut rotating lead screw device is ingenious in structural design, the framework oil seal is arranged at both ends of the flange sleeve so as to effectively prevent foreign matters from entering into the tapered roller bearing. An oil nozzle is arranged so as to effectively improve lubricating effect and greatly prolong service life. In addition, the tapered roller bearing which can bear large radial load and axial load is adopted so as to be simple and effective, easy to achieve, and especially suitable for large-stroke, high-rotating-speed and high-accuracy transmission. The nut rotating lead screw device is low in noise, saves space and improves working efficiency, and one lead screw can simultaneously work with multiple ball nuts.
Description
Technical field
The utility model belongs to machine tool field, is specifically related to a kind of nut rotating threaded shaft device.
Background technique
Ball screw pair be a kind of rely on nut and leading screw relatively move the gearing parts, the movement of its nut is to produce by the ball between nut and leading screw thread to relatively move, thereby ball screw has better machinery driving efficiency.Because of ball guide screw nat transmission system actual motion in each mechanism of numerical control machine tool the most frequent, each component often produces mechanical wear and insufficient lubrication, thereby usually occurs that Location accuracy descends, the faults such as backlass is excessive, mechanical creep, bearing wear is serious, noise is excessive.
The model utility content
The purpose of this utility model is, for above-mentioned deficiency, provides a kind of structural design ingenious, reasonable, possesses the nut rotating threaded shaft device of good lubricated usefulness and high running precision.
For achieving the above object, technological scheme provided by the utility model is.
A kind of nut rotating threaded shaft device, it comprises the ball nut body, it also comprises flange cover, tapered roller bearing, outside framework oil seal and latch assembly, described ball nut body is arranged in the described flange cover, and form an installation cavity that is used for placing described tapered roller bearing, described tapered roller bearing is inserted in this installation cavity, and is positioned in the described installation cavity by described latch assembly, and the end positions of this installation cavity is provided with outside framework oil seal.
The quantity of described tapered roller bearing is two, and it is symmetricly set on the described ball nut body.
Described latch assembly comprises a locking nut and a collar, and described collar is arranged between described locking nut and the tapered roller bearing.
Described flange puts and is provided with an oil nozzle, and this oil nozzle is connected with described installation cavity; Be provided with the outside thread suitable with the internal thread of described locking nut on one end of described ball nut body.
The beneficial effects of the utility model are: the utility model structural design is ingenious, reasonable, two ends at the flange cover are provided with outside framework oil seal, can prevent effectively that foreign matter from entering tapered roller bearing, improve working stability and precision, and be provided with oil nozzle, the Effective Raise lubrication effect has promoted precision and the durability moved, greatly increases the service life.Adopt in addition and can bear larger radial load and the tapered roller bearing of thrust load, simple effective, easily realization is specially adapted to large stroke, high rotating speed and high-precision transmission.And noise is low, and a bar leading screw can fill a plurality of ball nuts and work simultaneously, saves the space, increases work efficiency.
Below in conjunction with accompanying drawing and embodiment, the utility model is further specified.
Description of drawings
Fig. 1 is side-looking structural representation of the present utility model.
Fig. 2 is sectional structure schematic representation of the present utility model.
Embodiment
Referring to Fig. 1 and Fig. 2, a kind of nut rotating threaded shaft device that present embodiment provides, it comprises ball nut body 2, it also comprises flange cover 3, tapered roller bearing 4, outside framework oil seal 1 and latch assembly, described ball nut body 2 is arranged in the described flange cover 3, and form an installation cavity that is used for placing described tapered roller bearing 4, described tapered roller bearing 4 is inserted in this installation cavity, and be positioned in the described installation cavity by described latch assembly, the end positions of this installation cavity is provided with outside framework oil seal 1.
The quantity of described tapered roller bearing 4 is two, and it is symmetricly set on the described ball nut body 2.
Described latch assembly comprises a locking nut 5 and a collar 6, and described collar 6 is arranged between described locking nut 5 and the tapered roller bearing 4.
Described flange cover 3 is provided with an oil nozzle 7, and this oil nozzle 7 is connected with described installation cavity; Be provided with the outside thread suitable with the internal thread of described locking nut 5 on one end of described ball nut body 2.
Above embodiment only is used for explanation the utility model; and be not limitation of the utility model; the those of ordinary skill in relevant technologies field; in the situation that does not break away from spirit and scope of the present utility model; can also make a variety of changes and modification; therefore all technological schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.
Claims (4)
1. nut rotating threaded shaft device, it comprises the ball nut body, it is characterized in that, it also comprises flange cover, tapered roller bearing, outside framework oil seal and latch assembly, described ball nut body is arranged in the described flange cover, and forms an installation cavity that is used for placing described tapered roller bearing, and described tapered roller bearing is inserted in this installation cavity, and be positioned in the described installation cavity by described latch assembly, the end positions of this installation cavity is provided with outside framework oil seal.
2. a kind of nut rotating threaded shaft device according to claim 1 is characterized in that the quantity of described tapered roller bearing is two, and it is symmetricly set on the described ball nut body.
3. a kind of nut rotating threaded shaft device according to claim 1 is characterized in that described latch assembly comprises a locking nut and a collar, and described collar is arranged between described locking nut and the tapered roller bearing.
4. a kind of nut rotating threaded shaft device according to claim 3 is characterized in that, described flange puts and is provided with an oil nozzle, and this oil nozzle is connected with described installation cavity; Be provided with the outside thread suitable with the internal thread of described locking nut on one end of described ball nut body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220423508 CN202867749U (en) | 2012-08-24 | 2012-08-24 | Nut rotating lead screw device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220423508 CN202867749U (en) | 2012-08-24 | 2012-08-24 | Nut rotating lead screw device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202867749U true CN202867749U (en) | 2013-04-10 |
Family
ID=48034471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220423508 Expired - Fee Related CN202867749U (en) | 2012-08-24 | 2012-08-24 | Nut rotating lead screw device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202867749U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594379A (en) * | 2019-08-07 | 2019-12-20 | 山东大学 | Nut driving type hydrostatic lead screw transmission pair and machine tool |
-
2012
- 2012-08-24 CN CN 201220423508 patent/CN202867749U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594379A (en) * | 2019-08-07 | 2019-12-20 | 山东大学 | Nut driving type hydrostatic lead screw transmission pair and machine tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203509152U (en) | Numerical-control engraving and milling machine for precise processing | |
| CN104029001A (en) | Method for assembling screw rod and rolling bearing assembly | |
| CN202867749U (en) | Nut rotating lead screw device | |
| CN203926773U (en) | One can auto-compensation associated sealing arrangement for bearings | |
| CN204487107U (en) | A kind of associated mode pressure assembling dedicated servo electric cylinder | |
| CN204113923U (en) | A kind of vibration damping mechanical supporting device of transmission shaft | |
| CN204025581U (en) | Straight-line ball guide pin bushing | |
| CN105351171A (en) | Crankshaft for compressor | |
| CN203604431U (en) | Solid-lubricated self-centering semi-tile type sliding bearing | |
| CN203384380U (en) | Straightening machine reducer high-speed shaft sealing structure | |
| CN206000890U (en) | A kind of Hooke's joint | |
| CN103464835A (en) | High-efficient workpiece tapping machine | |
| CN204339412U (en) | A kind of ball-screw end spring bearing configuration structure of high speed feed axle | |
| CN202971570U (en) | Guiding device of mechanical equipment | |
| CN201581289U (en) | Large bearing type steel strander | |
| CN202690934U (en) | Ball screw | |
| CN203509241U (en) | Efficient workpiece tapping machine | |
| CN205639578U (en) | Anchor ring turbine reducing gear box lubricating arrangement | |
| CN202718954U (en) | Novel hydraulic oil cylinder | |
| CN202065341U (en) | Radial ball bearing | |
| CN203176177U (en) | Dustproof bearing | |
| CN104526435A (en) | Ball screw end support bearing arranging structure of high-speed feed shaft | |
| CN205841522U (en) | A kind of shaft of grinding roller bearing lubrication system | |
| CN202914541U (en) | Bearing oil-fog lubricating structure of hot roller motor | |
| CN219598884U (en) | Static pressure feeding sliding sleeve structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20150824 |
|
| EXPY | Termination of patent right or utility model |