CN102635672A - Automatic lubricating device being suitable for nut-screw transmission mechanism - Google Patents
Automatic lubricating device being suitable for nut-screw transmission mechanism Download PDFInfo
- Publication number
- CN102635672A CN102635672A CN2012101300803A CN201210130080A CN102635672A CN 102635672 A CN102635672 A CN 102635672A CN 2012101300803 A CN2012101300803 A CN 2012101300803A CN 201210130080 A CN201210130080 A CN 201210130080A CN 102635672 A CN102635672 A CN 102635672A
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- Prior art keywords
- nut
- graphite
- transmission mechanism
- lead screw
- lubricating device
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 34
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 20
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 50
- 239000010439 graphite Substances 0.000 claims abstract description 50
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 49
- 238000005461 lubrication Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract description 2
- 239000004519 grease Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 7
- 239000000428 dust Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011859 microparticle Substances 0.000 description 2
- CVOFKRWYWCSDMA-UHFFFAOYSA-N 2-chloro-n-(2,6-diethylphenyl)-n-(methoxymethyl)acetamide;2,6-dinitro-n,n-dipropyl-4-(trifluoromethyl)aniline Chemical compound CCC1=CC=CC(CC)=C1N(COC)C(=O)CCl.CCCN(CCC)C1=C([N+]([O-])=O)C=C(C(F)(F)F)C=C1[N+]([O-])=O CVOFKRWYWCSDMA-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
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- Transmission Devices (AREA)
Abstract
The invention discloses an automatic lubricating device being suitable for a nut-screw transmission mechanism. The automatic lubricating device comprises at least one graphite nut, a baffle, a driving nut and a lead screw, wherein the graphite nut is sleeved on the lead screw, and the baffle and the driving nut are in rigid connection to clamp the graphite nut between the baffle and the driving nut, so that the graphite nut and the driving nut can synchronously move; the graphite nut is arranged in the driving nut, the lubricating device also comprises a torsion spring which is arranged on the graphite nut, and the thread of the graphite nut anticlockwise rotates to be clung to the two sides of the groove of the lead screw; and the cross section of the graphite nut is annular or semi-annual. According to the automatic lubricating device provided by the invention, solid is used for lubrication, the lubrication time is long, the volume is small, the lubrication action is realized by virtue of self motion of the nut-screw transmission mechanism only without maintenance, the structure is simple, the mechanism part is less, the working accuracy requirement is not high, and the maintenance is convenient.
Description
Technical field
What the present invention relates to is a kind of mechanism automatic lubricator, in particular a kind of automatic lubricator that is applicable to the nut lead screw transmission mechanism.
Background technique
Present various rail vehicle door adopts nut lead screw transmission mechanism opposite house to open and close more, and screw mandrel in use for some time, and its surface especially can produce the microcosmic cheuch on the both sides of groove; So, the switching of door just becomes and has some setbacks, and therefore need be lubricated screw mandrel; Traditional lubricating system is a grease lubrication, promptly smears lubricating grease on the screw mandrel surface, but because the nut lead screw transmission mechanism is an open structure; The mobile property of lubricating grease is poor, and lubricating grease generally all along with the nut motion is pulled to screw mandrel two, can't play effectively lubricating to the motor segment that screw mandrel need lubricate; Therefore need often smear lubricating grease, safeguard cumbersomely, and lubricating grease is very high to temperature requirement; When temperature was higher, lubricating grease can be dry, do not have effect; And temperature low the time lubricating grease can condense; The result who causes is a lubricating grease along with the motion of nut all has been pulled to two of screw mandrel, has no idea effectively to be lubricated, in addition because the grease toughness; In routine work, can be stained with dust; At first it is not attractive in appearance, and secondly dust may have influence on the normal operation of nut, even screw mandrel is caused damage.Occurred a kind of innovative product now on the market, it becomes graphite fiber nylon macromolecular material with nut by metal material, when driving mechanism moves, reached non-maintaining effect like this, but its cost is higher, is inappropriate for mass production.
Summary of the invention
Goal of the invention: the objective of the invention is to overcome the deficiency of existing technology, provide a kind of maintenance simple, lubrication effect obviously and the nut lead screw transmission mechanism automatic lubricator of lower cost.
Technological scheme: the present invention realizes through following technological means:
A kind of automatic lubricator that is applicable to the nut lead screw transmission mechanism; Comprise graphite nut, baffle plate, transmission nut and screw mandrel; Said graphite nut sleeve is connected on the screw mandrel, and baffle plate and transmission nut rigid joint are clipped in the middle the graphite nut, makes the same moved further of graphite nut and transmission nut.
Described graphite nut is arranged on transmission nut inside.
Described graphite nut is arranged in the connecting plate between transmission nut and the baffle plate.
Described lubricating fitting also comprises torsion spring, and said torsion spring is arranged on the graphite nut, makes the thread opposite spin of graphite nut be adjacent to the both sides of the groove of screw mandrel.
The cross section of graphite nut is an annular or semi-circular.
Described graphite nut is provided with one piece at least.
Beneficial effect: the present invention is owing to use the graphite nut of solid to replace lubricating grease of the prior art that screw mandrel is lubricated; Its lubrication time is long, and volume is little, and only relies on the lubricated action of motion realization of nut lead screw transmission mechanism self; Non-maintaining; Simple in structure, mechanism element is few, requirement on machining accuracy is not high, easy to maintenance, and fabricating cost is also very low, is suitable for producing in enormous quantities using.
Description of drawings
Fig. 1 is a schematic representation of the present invention;
Fig. 2 is the schematic representation of another mode of execution of the present invention.
Wherein 1-graphite nut, 2-torsion spring, 3-baffle plate, 4-transmission nut, 5-screw mandrel.
Embodiment
Elaborate in the face of embodiments of the invention down, present embodiment provided detailed mode of execution and concrete operating process, but protection scope of the present invention is not limited to following embodiment being to implement under the prerequisite with technological scheme of the present invention.
Embodiment 1: as shown in Figure 1, the present invention relates to a kind of automatic lubricator that is applicable to the nut lead screw transmission mechanism, and comprise graphite nut 1; Torsion spring 2, baffle plate 3, transmission nut 4 and screw mandrel 5; Wherein: graphite nut 1 is enclosed within on the screw mandrel 1, graphite nut 1 is just closely contacted with screw mandrel 5, and torsion spring 2 is contained on the graphite nut 1; Make the thread opposite spin on the graphite nut 1 be adjacent to the both sides of the groove of screw mandrel 5, thereby screw mandrel is lubricated.Among the present invention, graphite nut 1 is arranged on the inside of transmitting nut 4, at transmission nut arranged outside baffle plate 3; Said graphite nut 1 also can be arranged on baffle plate 3 and transmit on the connecting plate that is provided with between the nut 4, and is between them and is rigidly connected, and so graphite nut 1 just has been clipped in the middle of baffle plate 3 and the transmission nut 4; When transmission nut 4 moved with screw mandrel 5, the also same thereupon moved further of graphite nut 1 was along with moving of graphite nut 1; Graphite nut 1 rubs with screw mandrel 5; And some graphite microparticles under the band, the graphite microparticles that these frictions obtain can be adsorbed on the surface of screw mandrel 5, fills up screw mandrel 5 surface microscopic cheuches; Thereby sprawl into the lubricating film that one deck has antiwear and antifriction, reach the effect that screw mandrel 5 is lubricated.And, so lubricate and do not have the dead angle, and along with the motion of transmission nut 4 because transmission nut 4 move on whole rhizoid bar 5; Screw mandrel 5 is lubricated repeatedly, and its effect is remarkable, after the graphite nut is used up; Only need dismounting lower pedal 3 just can change, it safeguards also quite convenient.
The nut of graphite described in the present invention 1 also also can be provided with one piece or many pieces, and when being provided with many pieces, only need be arranged on torsion spring 2 between per two graphite nuts 1 and get final product.Embodiment 2 has provided graphite nut 1 one piece mode of execution has been set, and is as shown in Figure 2, and torsion spring described in this mode of execution 2 is arranged between transmission nut 4 and the graphite nut 1, makes its one-tenth as a whole, and remaining technological scheme is consistent with embodiment 1.
Use automatic lubricator lubrication effect according to the invention consistent with the effect of using lubricating grease, can non-maintaining operation more than 2,000,000 times.
Claims (6)
1. automatic lubricator that is applicable to the nut lead screw transmission mechanism; It is characterized in that: comprise graphite nut (1), baffle plate (3), transmission nut (4) and screw mandrel (5); Said graphite nut (1) is socketed on the screw mandrel (5); Baffle plate (3) and transmission nut (4) rigid joint are clipped in the middle graphite nut (1), make graphite nut (1) and the same moved further of transmission nut (4).
2. a kind of automatic lubricator that is applicable to the nut lead screw transmission mechanism according to claim 1 is characterized in that: described graphite nut (1) is arranged on transmission nut (4) inside.
3. a kind of automatic lubricator that is applicable to the nut lead screw transmission mechanism according to claim 1 is characterized in that: described graphite nut (1) is arranged in the connecting plate between transmission nut (4) and the baffle plate (3).
4. a kind of automatic lubricator that is applicable to the nut lead screw transmission mechanism according to claim 1; It is characterized in that: described lubricating fitting also comprises torsion spring (2); Said torsion spring (2) is arranged on graphite nut (1) edge, makes the thread opposite spin of graphite nut (1) be adjacent to the both sides of the groove of screw mandrel (5).
5. a kind of automatic lubricator that is applicable to the nut lead screw transmission mechanism according to claim 1 is characterized in that: the cross section of graphite nut (1) is annular or semi-circular.
6. a kind of automatic lubricator that is applicable to the nut lead screw transmission mechanism according to claim 1 is characterized in that: described graphite nut (1) is provided with one piece at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101300803A CN102635672A (en) | 2012-04-28 | 2012-04-28 | Automatic lubricating device being suitable for nut-screw transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101300803A CN102635672A (en) | 2012-04-28 | 2012-04-28 | Automatic lubricating device being suitable for nut-screw transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102635672A true CN102635672A (en) | 2012-08-15 |
Family
ID=46620188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101300803A Pending CN102635672A (en) | 2012-04-28 | 2012-04-28 | Automatic lubricating device being suitable for nut-screw transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102635672A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105358877A (en) * | 2013-07-18 | 2016-02-24 | 罗伯特·博世有限公司 | Spindle drive |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01153861A (en) * | 1987-12-10 | 1989-06-16 | Inoue Japax Res Inc | Screw device |
| CN101052826A (en) * | 2004-10-29 | 2007-10-10 | Thk株式会社 | Screw device |
| CN202612517U (en) * | 2012-04-28 | 2012-12-19 | 南京康尼机电股份有限公司 | Automatic lubricating device suitable for nut lead-screw driving mechanism |
-
2012
- 2012-04-28 CN CN2012101300803A patent/CN102635672A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01153861A (en) * | 1987-12-10 | 1989-06-16 | Inoue Japax Res Inc | Screw device |
| CN101052826A (en) * | 2004-10-29 | 2007-10-10 | Thk株式会社 | Screw device |
| CN202612517U (en) * | 2012-04-28 | 2012-12-19 | 南京康尼机电股份有限公司 | Automatic lubricating device suitable for nut lead-screw driving mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105358877A (en) * | 2013-07-18 | 2016-02-24 | 罗伯特·博世有限公司 | Spindle drive |
| CN105358877B (en) * | 2013-07-18 | 2018-04-24 | 罗伯特·博世有限公司 | Spindle drive |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120815 |