CN101825163B - Friction linear transmission pair device - Google Patents
Friction linear transmission pair device Download PDFInfo
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- CN101825163B CN101825163B CN2010101809458A CN201010180945A CN101825163B CN 101825163 B CN101825163 B CN 101825163B CN 2010101809458 A CN2010101809458 A CN 2010101809458A CN 201010180945 A CN201010180945 A CN 201010180945A CN 101825163 B CN101825163 B CN 101825163B
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- optical axis
- bearing
- bearing support
- drive
- axis
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Abstract
The invention relates to a friction linear transmission pair device which realizes linear transmission by relying on an optical axis and a bearing. The device comprises the optical axis, the transmission bearing which is arranged in an inclined way, and a transmission bearing fixing device which is used for fixing the transmission bearing; the inner hole of the transmission bearing is larger than the diameter of the optical axis; after installation, the optical axis horizontally passes through the inner hole of the transmission bearing, and the axis of the optical axis and the axis of the transmission bearing form a speed inclination angle which is more than 0 degree but less than 90 degrees; and the stress point of the upper end of the inner hole of the transmission bearing contacts with the optical axis, and the lower end of the inner hole of the transmission bearing and the optical axis are separated. By adopting the structure, the invention is simpler and has lower cost compared with a traditional process which adopts a threaded shaft, a vortex rod and other parts with complicated processes, and the friction linear transmission pair device can be widely applied to the field of mechanical linear motion and precise linear transmission mechanisms, has wide scope of application and novel structure, and breaks through the structural design of traditional linear motion.
Description
Technical field
The present invention relates to mechanical straight line motion and accurate straight-line transmitting actuation mechanism field, refer in particular to a kind of dependence optical axis and bearing and realize straight-line friction linear transmission pair device.
Background technique
The structure of existing mechanical linear motion device is a lot, and the principle of using always is to become straight line with rotatablely moving to move.Have only screw thread transmission and ball screw transmission and reach this technical purpose mechanical structure.But screw thread transmission manufacturing process is very complicated, and the especially manufacturing of screw rod needs low carbon steel turning, and in Carburization Treatment, Quenching Treatment also will be carried out precision mill pin at thread-grinding machine at last.The ball screw transmission involves great expense, complex structure.
In addition; Also have some switching-over 90 degree that will rotatablely move; Add the linear rail secondary motion again; The mechanism of switching-over 90 degree that rotatablely move is roughly had: turbine and worm, angular wheel transmission etc., but this type mechanism all will add straight line mobile guide device, is mated like motions such as linear bearing, linear rails.
Summary of the invention
The object of the invention is exactly provide to the deficiency of existing technology a kind of simple in structure, cost is low, rely on optical axis and the bearing that is obliquely installed is realized straight-line friction linear transmission pair device.
For achieving the above object; Technological scheme of the present invention is: a kind of friction linear transmission pair device; Include optical axis and the drive bearing that tilts to install; Also include the drive bearing fixing device of fixing said drive bearing, the diameter of bore of said drive bearing is big than the diameter of optical axis, after the assembling; The axis of axis and said drive bearing that the optical axis level wore endoporus and the optical axis of said drive bearing exists greater than 0 degree less than the speed tilt angle of 90 degree, and said drive bearing endoporus upper end force bearing point contacts with optical axis and said drive bearing endoporus lower end and optical axis are in the interval state.
Said drive bearing fixing device includes horizontally disposed bearing support; The inner chamber height of bearing support is greater than the external diameter of said drive bearing; After the assembling; One or more said drive bearings are located in the inner chamber of bearing support obliquely and through the fastening screw trip bolt location, said optical axis wore the both ends of the surface of bearing support.
In said bearing support, also be provided with the spring bearing that one or more reversed dips are installed; The diameter of bore of said spring bearing is big than the diameter of optical axis; After the assembling; The optical axis level wore the endoporus of said spring bearing and the axis of optical axis and the axis of said spring bearing and had the support tilt angle, and said spring bearing endoporus upper end is in state at interval with optical axis, and said spring bearing lower end force bearing point and optical axis are in contact condition; Be inserted with compression device in fluting activity above the bearing support, the inclination upper end that is located at said spring bearing is closely supported in the lower end surface of last compression device, and last compression device is fixed through last compression device fastening screw trip bolt and bearing support.
One end face of said bearing support has through hole, and the other end opening is equipped with axle head special screw thread back-up ring.
Said bearing support and optical axis are two covers; Be respectively X to bearing support and Y to bearing support and X to optical axis and Y to optical axis, X wore X to bearing support and through the assembling of two fixed base axis holes to optical axis, sliding floor is fixedly connected to bearing support with X; Sliding floor had the guiding supporting effect X to linear rail; On sliding floor, be provided with Y to bearing support, Y to optical axis and working platform, Y is vertical to optical axis with X to optical axis, Y wore Y to bearing support and through two fixed base axis holes assemblings to optical axis; Working platform is fixedly connected to bearing support with Y, working platform had the guiding supporting effect Y to linear rail.
Said X to optical axis one end be connected with X to handwheel and X to handle; Said Y to an end of optical axis be connected with Y to handwheel and Y to handle.
Said X is connected with X to motor to optical axis one end; Said Y is connected with Y to motor to an end of optical axis.
After adopting said structure; The present invention utilizes the velocity component that resolves into drive bearing inner ring true dip direction and the drive bearing of the downward velocity vector of the optical axis vertical rotation principle along the horizontal component of optical axis, makes the bearing support realization straight line under the drive of optical axis rotation that is connected with drive bearing move.Two vertical friction linear transmission pair devices of the present invention are installed just can be realized that the plane transmission accurately locatees.Because friction linear transmission pair device of the present invention only needs smooth rotating shaft and common bearing just can realize; Simple than parts technologies such as the thread spindle of available technology adopting complex process or scroll bars; Cost is low, and friction linear transmission pair device of the present invention can be widely used in mechanical straight line motion and the accurate straight-line transmitting actuation mechanism field, applied range; Novel structure has been broken the habitual structural design of traditional mechanical straight line tradition.
Description of drawings
Fig. 1 is a friction linear transmission pair structural principle schematic representation of the present invention.
Fig. 2 is a friction linear transmission pair speed decomposition principle schematic representation of the present invention.
Fig. 3 is a friction linear transmission pair device embodiment forward cross-sectional view of the present invention.
Fig. 4 is a friction linear transmission pair device embodiment side direction cross-sectional view of the present invention.
Fig. 5 is applied in the two-dimension plane structure perspective view for friction linear transmission pair device of the present invention.
[0018]Fig. 6 is applied in two-dimension plane structure plane structure schematic representation for friction linear transmission pair device of the present invention.
Embodiment
Shown in Fig. 1-2; A kind of friction linear transmission pair device of the present invention; Include optical axis 1 and the drive bearing 2 that tilts to install; Also include the drive bearing fixing device of fixing said drive bearing 2, the diameter of bore of said drive bearing 2 is big than the diameter of optical axis 1, after the assembling; The axis of axis and said drive bearing 2 that optical axis 1 level wore endoporus and the optical axis 1 of said drive bearing 1 exists greater than 0 degree less than the speed tilt angle 3 of 90 degree, and said drive bearing 2 endoporus upper end force bearing point 4 contacts with optical axis 1 and said drive bearing 2 endoporus lower ends and optical axis 1 are in the interval state.
Shown in Fig. 3-4; Said drive bearing fixing device includes horizontally disposed bearing support 5; The inner chamber height of bearing support 5 is greater than the external diameter of said drive bearing 2; After the assembling, one or more said drive bearings 2 are located in the inner chamber of bearing support 5 obliquely and through fastening screw trip bolt 6 location, said optical axis 1 wore the both ends of the surface of bearing support 5.
In said bearing support 5, also be provided with the spring bearing 7 that one or more reversed dips are installed; The diameter of bore of said spring bearing 7 is big than the diameter of optical axis 1; After the assembling; Optical axis 1 level wore the endoporus of said spring bearing 7 and the axis of optical axis 1 and the axis of said spring bearing 7 and had support tilt angle 3, and said spring bearing 7 endoporus upper end is in state at interval with optical axis 1, and said spring bearing 7 lower end force bearing points and optical axis 1 are in contact condition; Be inserted with compression device 8 in fluting activity above the bearing support 5, the inclination upper end that is located at said spring bearing 7 is closely supported in the lower end surface of last compression device 8, and last compression device 8 is fixing with bearing support 5 through last compression device fastening screw trip bolt 9.
One end face of said bearing support 5 has through hole, and the other end opening is equipped with axle head special screw thread back-up ring 10.
Shown in Fig. 5-6; Said bearing support 5 is two covers with optical axis 1; Be respectively X to bearing support 5a and Y to bearing support 5b and X to optical axis 1a and Y to optical axis 1a, X wore X to bearing support 5a and through the assembling of two fixed bases, 11 axis holes to optical axis 1a, sliding floor 12 is fixedly connected to bearing support 5a with X; Sliding floor 12 had the guiding supporting effect X to linear rail 13; On sliding floor 12, be provided with Y to bearing support 5b, Y to optical axis 1b and working platform 14, Y is vertical to optical axis 1a with X to optical axis 1b, Y wore Y to bearing support 5b and through two fixed bases, 15 axis holes assemblings to optical axis 1b; Working platform 14 is fixedly connected to bearing support 5b with Y, working platform 14 had the guiding supporting effect Y to linear rail 16.
Said X to optical axis 1a one end be connected with X to handwheel 16 and X to handle 17; Said Y to the end of optical axis 1b be connected with Y to handwheel 18 and Y to handle 19.
Said X is connected with X to motor to optical axis 1a one end; Said Y is connected with Y to motor to the end of optical axis 1b.
As shown in Figure 1, optical axis 1 diameter is less than drive bearing 2 internal diameters, and optical axis 1 has only one with drive bearing 2 point of contact, i.e. the force bearing point 4 of top contact, and the bottom does not then contact, if form 2 contacts, then transmission is invalid.
Be illustrated in figure 2 as the transmission moving direction of the principle of the invention, i.e. the analysis of velocity attitude.When optical axis 1 rotated by direction shown in Figure 1, Vb was the moving direction of optical axis 1, because drive bearing 2 tilts, then Vc is drive bearing 2 inner ring moving direction.The direction of propulsion that Va is then produced for 2 pairs of optical axises 1 of its drive bearing; Its size is: Va=Vc X cosine speed tilt angle; Can find out that from formula optical axis 1 is rotation on one side, on one side can make drive bearing 2 in rotation along optical axis 1 axial advancement or retreat; The size of the speed of advancing or retreating is to be decided by the speed tilt angle of drive bearing 2 and the rotational speed of optical axis 1.
Shown in Fig. 3-4 embodiment, two drive bearings 2 are installed in the bearing support 5 with certain speed tilt angle 3, again with a pair of spring bearing 7, reversed dip is installed in bearing support 5 intermediate portions, and its setting angle is identical with the speed tilt angle 3 of drive bearing 2.Before not inserting optical axis, unclamp the last compression device fastening screw trip bolt 9 on the compression device 8, make that going up compression device 8 is in relaxed state.Insert optical axis 1, the top edge of optical axis 1 contacts with two drive bearings 2; Optical axis 1 lower limb then has certain gap with two drive bearings 2.The lower limb of optical axis 1 contacts with middle two spring bearings 7, and optical axis 1 top edge and two 7 of spring bearings leave the space.After installing optical axis 1, rotating drive shaft holds 2 gently, and then optical axis 1 is released counterclockwise; Optical axis 1 advances clockwise.To exist in order having eliminated to slide, can to adjust the tightness of compression device 8, after the slide relative phenomenon of eliminating optical axis 1 and spring bearing 7, compression device fastening screw trip bolt 9 gets final product in the locking.
Shown in Fig. 5-6, shake Y to handle 19, Y can drive Y to handwheel 18 and rotate to optical axis 1b.Y is supported by former and later two fixed bases 15 to optical axis 1b.Y is equipped with deep groove ball bearing in bearing support 5b.Like this, shake Y when handle 19 clockwise, counterclockwise, Y just is being with working platform 14 to advance and can retreat to linear rail 16 along Y to bearing support 5b.If shake X to handle 17, X is being with sliding floor 12 to advance and retreat on linear rail 13 at Y to optical axis 1a rotation drive X to bearing support 5a so.Like this, moving of X, Y both direction can be passed through in any point on the working platform 14, and it is moved on any needed position.
By on can know; Because friction linear transmission pair device of the present invention only needs smooth rotating shaft and common bearing just can realize, simple than parts technologies such as the thread spindle of available technology adopting complex process or scroll bars, cost is low; Friction linear transmission pair device of the present invention can be widely used in mechanical straight line motion and the accurate straight-line transmitting actuation mechanism field; Applied range, novel structure has been broken the habitual structural design of traditional mechanical straight line tradition.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. friction linear transmission pair device; Include optical axis and the drive bearing that tilts to install; It is characterized in that: the drive bearing fixing device that also includes fixing said drive bearing; The diameter of bore of said drive bearing is big than the diameter of optical axis; After the assembling, the axis of axis and said drive bearing that the optical axis level wore endoporus and the optical axis of said drive bearing exists greater than 0 degree less than the speed tilt angle of 90 degree, and said drive bearing endoporus upper end force bearing point contacts with optical axis and said drive bearing endoporus lower end and optical axis are in the interval state;
Said drive bearing fixing device includes horizontally disposed bearing support; The inner chamber height of bearing support is greater than the external diameter of said drive bearing; After the assembling; One or more said drive bearings are located in the inner chamber of bearing support obliquely and through the fastening screw trip bolt location, said optical axis wore the both ends of the surface of bearing support;
In said bearing support, also be provided with the spring bearing that one or more reversed dips are installed; The diameter of bore of said spring bearing is big than the diameter of optical axis; After the assembling; The optical axis level wore the endoporus of said spring bearing and the axis of optical axis and the axis of said spring bearing and had the support tilt angle, and said support tilt angle is identical with the angular dimension at said speed tilt angle;
Said spring bearing endoporus upper end is in state at interval with optical axis, and said spring bearing lower end force bearing point and optical axis are in contact condition; Be inserted with compression device in fluting activity above the bearing support, the inclination upper end that is located at said spring bearing is closely supported in the lower end surface of last compression device, and last compression device is fixed through last compression device fastening screw trip bolt and bearing support.
2. a kind of friction linear transmission pair device according to claim 1 is characterized in that: an end face of said bearing support has through hole, and the other end opening is equipped with axle head special screw thread back-up ring.
3. a kind of friction linear transmission pair device according to claim 1; It is characterized in that: said bearing support and optical axis are two covers; Be respectively X to bearing support and Y to bearing support and X to optical axis and Y to optical axis, X wore X to bearing support and through the assembling of two fixed base axis holes to optical axis, sliding floor is fixedly connected to bearing support with X; Sliding floor had the guiding supporting effect X to linear rail; On sliding floor, be provided with Y to bearing support, Y to optical axis and working platform, Y is vertical to optical axis with X to optical axis, Y wore Y to bearing support and through two fixed base axis holes assemblings to optical axis; Working platform is fixedly connected to bearing support with Y, working platform had the guiding supporting effect Y to linear rail.
4. a kind of friction linear transmission pair device according to claim 3 is characterized in that: said X to optical axis one end be connected with X to handwheel and X to handle; Said Y to an end of optical axis be connected with Y to handwheel and Y to handle.
5. a kind of friction linear transmission pair device according to claim 3 is characterized in that: said X is connected with X to motor to optical axis one end; Said Y is connected with Y to motor to an end of optical axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101809458A CN101825163B (en) | 2010-05-24 | 2010-05-24 | Friction linear transmission pair device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101809458A CN101825163B (en) | 2010-05-24 | 2010-05-24 | Friction linear transmission pair device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101825163A CN101825163A (en) | 2010-09-08 |
| CN101825163B true CN101825163B (en) | 2012-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101809458A Expired - Fee Related CN101825163B (en) | 2010-05-24 | 2010-05-24 | Friction linear transmission pair device |
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| Country | Link |
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| CN (1) | CN101825163B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581679A (en) * | 2011-01-18 | 2012-07-18 | 祁立强 | Flexible lead screw |
| CN102518765A (en) * | 2011-12-14 | 2012-06-27 | 苏州天准精密技术有限公司 | Double-speed transmission mechanism for precision measuring instrument |
| CN102619944A (en) * | 2012-03-16 | 2012-08-01 | 无锡正慈机电科技有限公司 | Friction-based rotary linear transmission device |
| CN102632490A (en) * | 2012-04-15 | 2012-08-15 | 苏州怡信光电科技有限公司 | Movable carrying table |
| CN102678858A (en) * | 2012-05-27 | 2012-09-19 | 郴州综合职业中专学校 | Device for directly converting rotational motion into linear motion for transmission on smooth shaft |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE398542B (en) * | 1976-05-14 | 1977-12-27 | Skf Nova Ab | MECHANISM FOR CONVERSION OF A ROTARY MOVEMENT TO AN AXIAL MOVEMENT OR TRANSFER |
| NL8000907A (en) * | 1980-02-13 | 1981-09-16 | Skf Ind Trading & Dev | METHOD FOR MANUFACTURING AN APPARATUS FOR CONVERTING A ROTARY MOVEMENT IN A LINEAR MOVEMENT |
| JPS63145862A (en) * | 1986-12-05 | 1988-06-17 | Toshiro Suzuki | Converting mechanism from rotary motion to linear one |
| CN201209656Y (en) * | 2008-04-30 | 2009-03-18 | 易飚 | Friction type straight-line transmission mechanism |
| CN201679924U (en) * | 2010-05-24 | 2010-12-22 | 徐道定 | Friction straight line transmission pair device |
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2010
- 2010-05-24 CN CN2010101809458A patent/CN101825163B/en not_active Expired - Fee Related
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| CN101825163A (en) | 2010-09-08 |
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Granted publication date: 20120926 Termination date: 20180524 |
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