CN102635682A - Pure torque transmission device - Google Patents
Pure torque transmission device Download PDFInfo
- Publication number
- CN102635682A CN102635682A CN2011100420358A CN201110042035A CN102635682A CN 102635682 A CN102635682 A CN 102635682A CN 2011100420358 A CN2011100420358 A CN 2011100420358A CN 201110042035 A CN201110042035 A CN 201110042035A CN 102635682 A CN102635682 A CN 102635682A
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- Prior art keywords
- end cap
- spindle
- supporting box
- transmission device
- pure torque
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Abstract
Disclosed is a pure torque transmission device. A spindle of the pure torque transmission device is supported by at least two spindle rolling bearings and is arranged in a supporting box. An output end of the supporting box is a common end cap and an input end of the supporting box is a special end cap. The pure torque transmission device is characterized in that a radial force loading bearing is arranged on an outer fitting surface of the special end cap, and an external force receiving part which is in a spline fit with the spindle is matched with an excircle of the radial force loading bearing. Only the pure torque is ensured to be transmitted to the spindle, and all external radial forces and eccentric forces are transmitted to the special end cap via the radial force loading bearing spindle and then are absorbed directly by a supporting box frame and an assembling base plate via the supporting box, so that the spindle cannot be influenced. By the aid of the special structure of the pure torque transmission device, a long-standing problem of hard radial run-out of the existing bearing supported spindle is solved, and the pure torque force transmission device is novel in design, simple in structure, easy to manufacture and convenient in use.
Description
Technical field
The present invention relates to a kind of special machine drive technology field, particularly wherein a kind of pure torsion force transmission mechanism.
Background technique
In some special machine drive technology fields, particularly the harsh mechanical transmissioning technology field that requires is arranged to rotating shaft run-out, as: laboratory high speed rotating shaft, jewel cutting machine main shaft etc., desirable state are radially zero beating.Present known universal machine drive technology, gear, belt transmission must be brought the radial force effect; The motor straight connection type can't accomplish that also diaxon is definitely coaxial, and existing various structure all too complicacy and effect are desirable not to the utmost.
Summary of the invention
The object of the present invention is to provide a kind of simple in structurely, satisfactory for result, and can eliminate radial force and a kind of pure torsion force transmission mechanism of pure torsion is provided.
To achieve these goals; The present invention provides a kind of pure torsion force transmission mechanism, adopts following measure: a kind of pure torsion force transmission mechanism, and main shaft is through at least two main shaft roller bearings; Be installed in the supporting box; The output terminal of supporting box is common end cap, and input end is special end cap, and the phase specialization is: on the outer section fitting surface of special end cap the radial force of carrying bearing is arranged; Carry on the radial force bearing top circle and be combined with an external force receiving element, and this external force receiving element is done to cooperate with spline with main shaft.This structure guarantees to pass to the pure torsion that has only of main shaft, and all external radial forces, eccentric force all pass to special end cap by carrying the radial force bearing, behind supporting box, is directly absorbed by supporting box frame, installation base plate, and can not influence main shaft.The output terminal of main shaft passes common end cap endoporus, at output terminal flat key position output pure torsion, thereby has realized the effect eliminating radial force and pure torsion is provided.
The invention has the beneficial effects as follows the hard nut to crack of having eliminated the circular runout of existing bearings main shaft by means of the ingenious structure of special end cap, novel, simple in structure, make easily, easy to use.
Description of drawings
Do further explain below in conjunction with the accompanying drawing specific embodiments of the invention.
Fig. 1 is the sectional structure schematic representation of a kind of bearings casing rotation axis seal structure of the present invention;
Fig. 2 is the enlarged view of the cross section A-A of spline 17 among Fig. 1.
Among the figure: main shaft 1, output terminal flat key 11, common end cap 2, common end cap set screw 22, main shaft rolling bearing 3, supporting box 4, special end cap 5, carrying radial force bearing 6, external force receiving element 7, axle are with jump ring back-up ring 8, shaft end ring screw 9.
Embodiment
Fig. 1～Fig. 2 combines to have provided a kind of pure torsion force transmission mechanism.Main shaft 1 supports through at least two main shaft rolling bearings 3, is installed in the supporting box 4, and the output terminal of supporting box 4 is common end caps 2, is fixed on the output terminal of supporting box 4 with at least three screws 22.Input end is special end cap 5, is fixed on the input end of supporting box 4 with at least three screws 51.Lay two on the one outer section fitting surface 56 of special end cap 5 and carry radial force bearing 6, be combined with an external force receiving element 7 on the cylindrical of carrying radial force bearing 6, fitting surface 67 is a transition fit.This external force receiving element 7 passes to main shaft 1 with pure torsion with the form of matching of spline 17.All external radial forces, eccentric force all pass to special end cap 5 by carrying radial force bearing 6, pass to supporting box frame 42, base plate 43 is installed is directly absorbed through supporting box 4 again, and can not influence main shaft 1.Section fitting surface 54 adopts interference fit to guarantee coaxality in supporting box 4 and the special end cap 5; An outer section fitting surface 56 that carries radial force bearing 6 and special end cap 5 also adopts interference fit to guarantee coaxality; And in the special end cap 5 section fitting surface 54 and an outer section fitting surface 56 be disposable synchronous processing with the assurance coaxality, guaranteeing that each point of contact K transmits peripheral force F synchronously on the circumference provides pure torsion.8 pairs of circlips for shaft carry radial force bearing 6 and play axial limiting.9 pairs of external force receiving elements 7 of shaft end ring screw play axial limiting, and its helical thread portion 79 is fixed on the main shaft 1.Gapped and directly do not contact between the cylindrical of the endoporus of special end cap 5 and main shaft 1.
1, when external force is given main shaft 1 application of force through the form of gear or belt pulley, after its radial force acts on the external force receiving element 7, passes to special end cap 5 and can not influence main shaft 1 through carrying radial force bearing 6.External force receiving element 7 matches with main shaft 1 with the form of spline 17, and at spline 17 point of contact K places, external force only passes to main shaft 1 pure torsion with the form of peripheral force F.
2, give the input of main shaft 1 application of force when the form of external force through the straight connection type coupling; Two break off with the fingers and thumb off-centre between the straight connection type coupling long-living eccentric force; After also can only acting on the external force receiving element 7, pass to special end cap 5 and can not influence main shaft 1 through carrying radial force bearing 6.External force at spline 17 places can only pass to main shaft 1 pure torsion with the form of peripheral force F.
At last, it is also to be noted that the external force receiving element is an example with synchronous band in Figure of description in the present case, also can be gear, belt pulley or straight connection type coupling etc., spline is an example with six lobes.What more than enumerate only is a specific embodiment of the present invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (1)
1. pure torsion force transmission mechanism; Main shaft (1) supports through at least two main shaft rolling bearings (3), is installed in the supporting box (4), and the output terminal of supporting box (4) is common end cap (2); Input end is special end cap (5); It is characterized in that: lay on the outer section fitting surface (56) of special end cap (5) and carry radial force bearing (6), carry on radial force bearing (6) cylindrical and be combined with an external force receiving element (7), and this external force receiving element (7) is done to cooperate with spline with main shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100420358A CN102635682A (en) | 2011-02-14 | 2011-02-14 | Pure torque transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100420358A CN102635682A (en) | 2011-02-14 | 2011-02-14 | Pure torque transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102635682A true CN102635682A (en) | 2012-08-15 |
Family
ID=46620198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100420358A Pending CN102635682A (en) | 2011-02-14 | 2011-02-14 | Pure torque transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102635682A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075495A (en) * | 2013-01-10 | 2013-05-01 | 长治钢铁（集团）锻压机械制造有限公司 | Two-point support device of combined driving input gear |
| CN103075466A (en) * | 2013-01-10 | 2013-05-01 | 长治钢铁（集团）锻压机械制造有限公司 | Driving converging device of fast-to-mount veneer rolling machine |
| CN109114224A (en) * | 2018-09-29 | 2019-01-01 | 中国航发沈阳发动机研究所 | Main shaft seal force limiting device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2079545U (en) * | 1990-11-10 | 1991-06-26 | 曹润起 | Electric shearing machine for rounding curve |
| CN2089383U (en) * | 1991-03-15 | 1991-11-27 | 张茂龙 | Numerically controlled cutting machine thread moving device |
| CN1108170A (en) * | 1993-03-05 | 1995-09-13 | 布莱克和德克尔公司 | Power tool and mechanism |
| CN200954664Y (en) * | 2006-06-10 | 2007-10-03 | 王远洋 | Novel stone-sawing machine |
| CN101426741A (en) * | 2006-04-28 | 2009-05-06 | 坂东机工株式会社 | Glass sheet cutting method and glass sheet cutting machine |
| CN101865136A (en) * | 2010-06-17 | 2010-10-20 | 浙江大学 | Power transmission device for centrifugal pump |
| CN201916464U (en) * | 2011-02-14 | 2011-08-03 | 张意立 | Pure-torque force transfer mechanism |
-
2011
- 2011-02-14 CN CN2011100420358A patent/CN102635682A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2079545U (en) * | 1990-11-10 | 1991-06-26 | 曹润起 | Electric shearing machine for rounding curve |
| CN2089383U (en) * | 1991-03-15 | 1991-11-27 | 张茂龙 | Numerically controlled cutting machine thread moving device |
| CN1108170A (en) * | 1993-03-05 | 1995-09-13 | 布莱克和德克尔公司 | Power tool and mechanism |
| CN101426741A (en) * | 2006-04-28 | 2009-05-06 | 坂东机工株式会社 | Glass sheet cutting method and glass sheet cutting machine |
| CN200954664Y (en) * | 2006-06-10 | 2007-10-03 | 王远洋 | Novel stone-sawing machine |
| CN101865136A (en) * | 2010-06-17 | 2010-10-20 | 浙江大学 | Power transmission device for centrifugal pump |
| CN201916464U (en) * | 2011-02-14 | 2011-08-03 | 张意立 | Pure-torque force transfer mechanism |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075495A (en) * | 2013-01-10 | 2013-05-01 | 长治钢铁（集团）锻压机械制造有限公司 | Two-point support device of combined driving input gear |
| CN103075466A (en) * | 2013-01-10 | 2013-05-01 | 长治钢铁（集团）锻压机械制造有限公司 | Driving converging device of fast-to-mount veneer rolling machine |
| CN109114224A (en) * | 2018-09-29 | 2019-01-01 | 中国航发沈阳发动机研究所 | Main shaft seal force limiting device |
| CN109114224B (en) * | 2018-09-29 | 2020-08-11 | 中国航发沈阳发动机研究所 | Main shaft sealing force limiting device |
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| Date | Code | Title | Description |
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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: 20120815 |