CN102146994A - Eccentric screw transmission mechanism capable of being automatically adjusted - Google Patents
Eccentric screw transmission mechanism capable of being automatically adjusted Download PDFInfo
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- CN102146994A CN102146994A CN2011100983502A CN201110098350A CN102146994A CN 102146994 A CN102146994 A CN 102146994A CN 2011100983502 A CN2011100983502 A CN 2011100983502A CN 201110098350 A CN201110098350 A CN 201110098350A CN 102146994 A CN102146994 A CN 102146994A
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- nut
- screw rod
- screw
- guide pillar
- transmission mechanism
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Abstract
The invention discloses an eccentric screw transmission mechanism capable of being automatically adjusted. The eccentric screw transmission mechanism comprises a screw rod and a nut; a cross slide block is installed between the nut and a guide pillar; a groove is formed on the cross slide block; and fixed limiting blocks are respectively arranged at the corresponding positions of the bottom part of the nut and the top part of the guide pillar. When the screw rod rotates under the stress, the nut displaces relatively to the screw rod, and then the cross slide block moves within the limited range according to the practical rotation situation of the screw rod to adjust the axle center; and the axle center of a nut component is adjusted through the self sliding according to the practical rotation situation of the screw rod, so that the axle center of the nut component is the same as that of the screw rod, thereby the eccentric phenomenon is avoided. Thus, the screw transmission mechanism not only realizes the function of screw transmission, but also enhances the stability.
Description
Technical field
The present invention relates to mechanical field, specifically is a kind of screw-drive mechanism.
Background technique
Power screw mainly are with the rotation motion motion that is in line, and carry out the transmission of energy and power simultaneously, perhaps adjust the mutual alignment of part.Also have straight line motion become and rotatablely move.Traditional screw-drive mechanism only plays simple gearing, ignored in the power screw process because the eccentric phenomena that the different axle center with nut of screw rod produce, the stability that has a direct impact power screw and the Security of eccentric phenomena influence working life of screw-drive mechanism simultaneously.
Summary of the invention
Purpose of the present invention provides a kind of solution decentraction driving mechanism eccentricity issues in order to overcome the deficiencies in the prior art, and the stable transmission screw-drive mechanism.
The object of the present invention is achieved like this: it comprises screw rod and nut, it is characterized in that: have a crosshead shoe to be installed between nut and the guide pillar, described crosshead shoe has groove, at the bottom and the guide pillar top corresponding position of nut the fixed limit piece is arranged respectively.
Described crosshead shoe has four grooves, at the bottom and the guide pillar top corresponding position of nut two fixed limit pieces is arranged respectively.
Above the described nut oil-collecting disk is installed, oil-collecting disk, nut, crosshead shoe, guide pillar connect as one by caging bolt, form nut assembly, and form screw-drive mechanism with screw rod.
The present invention is that screw rod is when stressed rotation, the relative screw rod of nut carries out displacement, this moment, crosshead shoe moved in limited range according to the situation of the actual rotation of screw rod, regulate the axle center, according to the actual conditions of screw rod rotation, by the axle center of self slidable adjustment nut assembly, make it identical with the screw rod axle center, avoid the generation of eccentric phenomena, so promptly realized the function of power screw, strengthened stability again.Oil-collecting disk is equipped with Lubricants, and screw rod, nut and crosshead shoe are lubricated, and guarantees that the normal of screw rod, nut and crosshead shoe moves.
Description of drawings
Describe the present invention in detail below in conjunction with accompanying drawing.
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a schematic perspective view of the present invention.
Embodiment
With reference to accompanying drawing 1-2, can regulate eccentric screw-drive mechanism automatically, comprise pressing plate 1, nut 2, crosshead shoe 3, guide pillar 4, screw rod 5, oil-collecting disk 6, oil-collecting disk 6, pressing plate 1, nut 2, crosshead shoe 3, guide pillar 4 connect as one successively by caging bolt, form nut assembly.Crosshead shoe 3 has four grooves, two fixed blocks 8 of two fixed blocks by nut 2 bottoms and guide pillar 4 top end plate 7 play position-limiting action to it, crosshead shoe 3 moves in limited range according to the situation of screw rod 5 actual rotations, regulate the axle center, make the axle center of nut assembly and screw rod 5 coaxial, avoided eccentric phenomena.Oil-collecting disk 6 is equipped with Lubricants, and nut 2, screw rod 5 and crosshead shoe 3 are lubricated, and guarantees that the normal of nut 2, screw rod 5 and crosshead shoe 3 moves.
Introduce the working state of the present invention when being used for the trestle elevating drive mechanism below: when the present invention was used for the trestle elevating drive mechanism, screw rod specifically was adopted as T type screw rod.Start electric rotating machine, T type screw rod 5 rotates, nut 2 carries out the relative movement state, this moment, crosshead shoe 3 was according to T type screw rod 5 actual situation slidable adjustment in limited range of rotating, make nut assembly identical with T type screw rod 5 axle center, reach coaxial state, nut assembly moves, simultaneously the Lubricants that is equipped with in the oil-collecting disk 6 is lubricated it along with moving of nut assembly, and guide pillar 4 moves and stops motor after the distance that needs and get final product.The eccentric phenomena that the present invention produces when avoiding the thread transmission rotation reaches the transverse vibration that causes driving mechanism thus.So both realize the function of power screw, strengthened stability again, guaranteed the working life of screw-drive mechanism simultaneously.
Claims (3)
1. can regulate eccentric screw-drive mechanism automatically for one kind, it comprises screw rod and nut, it is characterized in that: have a crosshead shoe to be installed between nut and the guide pillar, described crosshead shoe has groove, at the bottom and the guide pillar top corresponding position of nut the fixed limit piece is arranged respectively.
2. according to claim 1ly a kind ofly can regulate eccentric screw-drive mechanism automatically, it is characterized in that: described crosshead shoe has four grooves, at the bottom and the guide pillar top corresponding position of nut two fixed limit pieces is arranged respectively.
3. a kind of screw-drive mechanism that can regulate off-centre automatically according to claim 1 and 2, it is characterized in that: oil-collecting disk is installed on nut, oil-collecting disk, nut, crosshead shoe, guide pillar connect as one, and form nut assembly, and form screw-drive mechanism with screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100983502A CN102146994A (en) | 2011-04-14 | 2011-04-14 | Eccentric screw transmission mechanism capable of being automatically adjusted |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100983502A CN102146994A (en) | 2011-04-14 | 2011-04-14 | Eccentric screw transmission mechanism capable of being automatically adjusted |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102146994A true CN102146994A (en) | 2011-08-10 |
Family
ID=44421402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100983502A Pending CN102146994A (en) | 2011-04-14 | 2011-04-14 | Eccentric screw transmission mechanism capable of being automatically adjusted |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102146994A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109136885A (en) * | 2017-06-19 | 2019-01-04 | 北京北方华创微电子装备有限公司 | Coil regulating mechanism, induction heating apparatus and vapor deposition apparatus |
| CN110524245A (en) * | 2019-09-29 | 2019-12-03 | 上海热像科技股份有限公司 | A kind of position adjusting mechanism and infreared imaging device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2094644U (en) * | 1990-12-21 | 1992-01-29 | 周干绪 | Float cross disc coupling |
| JPH07315773A (en) * | 1994-05-21 | 1995-12-05 | Nippon Kiyaria Kogyo:Kk | Driving gear for vessel lift or the like |
| US20010039846A1 (en) * | 1997-10-20 | 2001-11-15 | Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C. | An actuator for converting rotary motion into rectilinear motion |
| US20100087260A1 (en) * | 2008-10-03 | 2010-04-08 | Ford Global Technologies, Llc | Zero-lash oldham coupling |
| CN201671978U (en) * | 2010-04-23 | 2010-12-15 | 三一重机有限公司 | Sliding coupling |
| CN201705878U (en) * | 2010-06-08 | 2011-01-12 | 朱豪东 | Telescopic mechanical structure |
| CN201705875U (en) * | 2010-04-16 | 2011-01-12 | 上海札德家具有限公司 | Screw lifting device |
| CN202040286U (en) * | 2011-04-14 | 2011-11-16 | 湖南五新机械有限公司 | Helical transmission mechanism capable of adjusting eccentricity automatically |
-
2011
- 2011-04-14 CN CN2011100983502A patent/CN102146994A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2094644U (en) * | 1990-12-21 | 1992-01-29 | 周干绪 | Float cross disc coupling |
| JPH07315773A (en) * | 1994-05-21 | 1995-12-05 | Nippon Kiyaria Kogyo:Kk | Driving gear for vessel lift or the like |
| US20010039846A1 (en) * | 1997-10-20 | 2001-11-15 | Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C. | An actuator for converting rotary motion into rectilinear motion |
| US20100087260A1 (en) * | 2008-10-03 | 2010-04-08 | Ford Global Technologies, Llc | Zero-lash oldham coupling |
| CN201705875U (en) * | 2010-04-16 | 2011-01-12 | 上海札德家具有限公司 | Screw lifting device |
| CN201671978U (en) * | 2010-04-23 | 2010-12-15 | 三一重机有限公司 | Sliding coupling |
| CN201705878U (en) * | 2010-06-08 | 2011-01-12 | 朱豪东 | Telescopic mechanical structure |
| CN202040286U (en) * | 2011-04-14 | 2011-11-16 | 湖南五新机械有限公司 | Helical transmission mechanism capable of adjusting eccentricity automatically |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109136885A (en) * | 2017-06-19 | 2019-01-04 | 北京北方华创微电子装备有限公司 | Coil regulating mechanism, induction heating apparatus and vapor deposition apparatus |
| CN110524245A (en) * | 2019-09-29 | 2019-12-03 | 上海热像科技股份有限公司 | A kind of position adjusting mechanism and infreared imaging device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110810 |