CN202746509U - Transmission device - Google Patents
Transmission device Download PDFInfo
- Publication number
- CN202746509U CN202746509U CN 201220301771 CN201220301771U CN202746509U CN 202746509 U CN202746509 U CN 202746509U CN 201220301771 CN201220301771 CN 201220301771 CN 201220301771 U CN201220301771 U CN 201220301771U CN 202746509 U CN202746509 U CN 202746509U
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- shaft
- frame
- coupling
- unidirectional coupling
- ratchet wheel
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Abstract
The utility model relates to a transmission device. The transmission device is characterized by adopting multiple-stage gear drive, carrying out the multiple-stage gear drive on the reciprocating rotary motion of an input shaft through two one-way couplers and driving the ratchet wheels of the two one-way couplers to clockwise or anticlockwise rotate, so that the two one-way couplers generate clockwise or anticlockwise rotation, an output shaft keeps the clockwise rotation all the time whether the input shaft clockwise rotates or anticlockwise rotates, and then the one-way rotary output of the output shaft is realized, thus the transmission device has the characteristics of reciprocating rotary drive and one-way rotary output and is wide in application and particularly suitable for a reversing device of a sea wave power generation device. The transmission device disclosed by the utility model has the characteristics of low gear transmission stage, high efficiency, higher coaxiality of the input shaft and the output shaft, compact structure and good reliability; and compared with the prior art, the transmission device disclosed by the utility model has the advantages of simple structure, high transmission efficiency, high reliability and easiness for replacement.
Description
Technical field
The invention belongs to mechanical transmission fields, specifically, relate to the transmission device that a kind of crankmotion becomes unidirectional rotary motion.
Background technique
At present, mostly just utilized the one way of driving force to do work by reciprocal power-actuated device, and another one way is not done work, and only is to finish mechanical return, has limited the continuity of efficient and transmission.There are the characteristics such as complex structure, manufacture cost is high, reliability is low in the technology of existing bi-directional drive, unidirectional output and device.
Number of patent application provides a kind of bidirectional drive for 200610041414.4 invention, this driver has a ring gear, its internal tooth meshes with two planetary pinions simultaneously, direct and the oscillating tooth ratchet engagement of one of them planetary pinion, another planetary pinion and a planetary pinion engagement, mesh with the oscillating tooth ratchet again, External Force Acting is on ring gear, driving output shaft output does manual work, although this invention can realize reciprocating force and drive unidirectional output, the oscillating tooth ratchet non-standard component that it adopts, cost is high, make complexity, and at high pulling torque, the oscillating tooth axle of oscillating tooth ratchet lost efficacy easily under the operating conditions for a long time.
The patent No. provides a kind of reciprocal nonreversible gear drive for 97121657.6 invention, this device comprises that one is waved or tooth bar, two mono-directional overrun engaging and disengaging gear, an idle pulley and a driven gear of push-and-pull control, this invention has utilized 7 gears to finish bi-directional drive, the single-direction transmission chain is longer, reduced transmission efficiency, and because gear is more, the reliability of device is lower.
Summary of the invention
For overcome exist in the prior art or complex structure, reliability low, perhaps the low deficiency of transmission efficiency the present invention proposes a kind of transmission device.
The present invention includes frame, input shaft, output shaft, transmission shaft, unidirectional coupling and gear; Wherein:
Described transmission device is stage-geared, comprises 2 gearwheels and 3 small gears, and 2 gearwheels are respectively first gear and second largest gear; 3 small gears are respectively the first small gear, the second small gear and third pinion; Described transmission shaft comprises the first transmission shaft, second driving shaft and the 3rd transmission shaft; Described unidirectional coupling comprises the first unidirectional coupling and the second unidirectional coupling; Input shaft is positioned at frame, and an end is installed on the deckle board of frame one side; The other end of input shaft is installed on the supporting frame that is positioned at frame, and is fixedly connected with the coupling shaft of the first unidirectional coupling one end; The first small gear is positioned at frame and is fixedly mounted on the described input shaft; The 3rd transmission shaft is positioned at frame, and an end is installed on the deckle board of described frame one side, and the other end is installed on the interior supporting frame of described frame; Third pinion is positioned at frame and is fixedly mounted on described the 3rd transmission shaft; Second driving shaft is positioned at frame, and an end is installed on the deckle board of described frame one side, and the other end is installed on the interior supporting frame of described frame, and is fixedly connected with the coupling shaft of the second unidirectional coupling one end; The second small gear is positioned at frame and is fixedly mounted on the described second driving shaft; Described the first small gear, the second small gear are identical with third pinion three's modulus, and intermeshing between the first small gear, the second small gear and the third pinion;
The first unidirectional coupling and the second unidirectional coupling all are positioned at frame; The coupling shaft of the first unidirectional coupling one end is connected with input shaft, and an end of the output shaft on the coupling shaft of the first unidirectional coupling the other end and the deckle board that is installed in the frame opposite side by bearing is connected; The other end of output shaft is positioned at outside the frame; First gear is positioned at frame and is fixedly mounted on the output shaft; The coupling shaft of the second unidirectional coupling one end is connected with second driving shaft, and the coupling shaft of the second unidirectional coupling the other end is connected with an end of the first transmission shaft; The other end of the first transmission shaft is installed on the deckle board of described frame 3 opposite sides; Second largest gear is positioned at frame and is fixedly mounted on described the first transmission shaft; The modulus of described first gear is identical with the modulus of second largest gear, and the modulus of first gear and second largest gear outer gearing;
Axis between described input shaft, the first transmission shaft, second driving shaft, the 3rd transmission shaft and the output shaft is parallel to each other;
Described the first unidirectional coupling and the second unidirectional coupling form by shell, ratchet wheel, ball, spring spindle and shell end cap; The ratchet wheel of described unidirectional coupling is solid of rotation, and the external diameter of this ratchet wheel is less than the internal diameter of shell, make this ratchet wheel pack in the shell after, Spielpassung between the two; There is coupling shaft at the center of this ratchet wheel one end end face, is used for the residing unidirectional coupling of this ratchet wheel is connected with input shaft or second driving shaft; Outer round surface at ratchet wheel is processed with four ball mounting grooves that connect the axial length direction of ratchet wheel; And consisting of described each ball mounting groove is by a minor face and the trough with straight angle that long limit consists of; After extend on the plane that the minor face of each ball mounting groove of ball forms through the axis of runner; The plane that the long limit of this ball mounting groove forms is mutually vertical with the plane that described ball mounting groove minor face forms, and makes in four quadrants that are distributed in this ratchet wheel of each ball mounting groove symmetry; The length of described each ball mounting groove minor face equals the diameter of ball and the matching gap sum between shell and the ratchet wheel; It is the rolling surface of ball that described each ball is installed formed plane, flute length limit; On the plane of the minor face of described each ball mounting groove, a blind hole is arranged all, be used for placing spring; 4 springs place respectively in the blind hole; 4 spring spindles are installed in respectively in the blind hole, and an end face of each spring spindle all with the spring contact that places in the blind hole; Be Spielpassung between each spring spindle and each blind hole; 4 balls lay respectively on the rolling surface of a ball mounting groove, and the outer round surface of this ball all with another end contact of each spring spindle.
The shell of described unidirectional coupling is the hollow solid of rotation of end sealing; There is coupling shaft at end cap center at the closed end of shell, is used for the residing unidirectional coupling of this shell is connected with output shaft or the first transmission shaft; The other end of shell is open-mouth end, and the mounting hole of shell end cap is arranged at the end face of this open-mouth end; There is the via hole of ratchet wheel end face center coupling shaft at the center of shell end cap; The shell end cap is fixed on the end face of shell by clamping bolt, with ratchet wheel, spring spindle and ball sealing in the enclosure.
The ball mounting groove of the inner ratchet wheel of described the first unidirectional coupling is opposite with the ball mounting groove opening direction of the inner ratchet wheel of the second unidirectional coupling, illustrate as can be known that according to above-mentioned transmission principle to unidirectional coupling the driving direction of the first unidirectional coupling and the second unidirectional coupling is opposite.
Because the abovementioned technology that the present invention takes, when when input shaft applies shuttle driving moment, all the time one-way rotation output of output shaft has the advantages that reciprocating rotary drives, single direction rotation is exported, be widely used, be specially adapted to the reversing arrangement of Wave power generation device.Middle gear transmission progression of the present invention is little, and efficient is high, and input shaft and output shaft keep higher coaxality, has the characteristics of compact structure, good reliability.Compared with prior art, simple structure of the present invention, transmission efficiency are high, reliability is high, and are easy to change.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the schematic representation of unidirectional coupling;
Fig. 3 is that the B of Fig. 2 is to sectional view;
Fig. 4 is the schematic representation of unidirectional coupling outer ring, and wherein Fig. 4 a is side view, and Fig. 4 b is plan view;
Fig. 5 is the structural representation of unidirectional coupling ratchet wheel, and wherein Fig. 5 a is side view, and Fig. 5 b is plan view.
In the accompanying drawing:
1. input shaft 2. first small gears 3. frames 4. supporting frames 5. first unidirectional couplings
6. first gear 7. output shafts 8. minor faces 9. first transmission shafts 10. second largest gears
11. the second unidirectional coupling 12. second driving shafts 13. second small gears 14. third pinions
15. the 3rd transmission shaft 16. unidirectional coupling outer rings 17. ratchet wheels, 18. balls
19. spring spindle 20. clamping bolts 21. shell end caps 22. long limits
Embodiment
Present embodiment is the transmission device that a kind of crankmotion becomes unidirectional rotary motion, comprises frame 3, input shaft 1, output shaft 7, transmission shaft, unidirectional coupling and gear.Described transmission device is stage-geared.Described transmission shaft comprises the first transmission shaft 9, second driving shaft 12 and the 3rd transmission shaft 15.Described unidirectional coupling comprises the first unidirectional coupling 5 and the second unidirectional coupling 11.Described multi-stage gear comprises 2 gearwheels and 3 small gears, and 2 gearwheels are respectively first gear 6 and second largest gear 10; 3 small gears are respectively the first small gear 2, the second small gear 13 and third pinion 14.
The first unidirectional coupling 5 and the second unidirectional coupling 11 all are positioned at frame 3.The coupling shaft of the first unidirectional coupling 5 one ends is connected with input shaft 1, and an end of the output shaft 7 on the coupling shaft of the first unidirectional coupling 5 the other ends and the deckle board that is installed in frame 3 opposite sides by bearing is connected; The other end of output shaft 7 is positioned at outside the frame 3, and this end is the output terminal that transmission device becomes crankmotion unidirectional rotary motion; First gear 6 is positioned at frame 3 and is fixedly mounted on the output shaft 7.The coupling shaft of the second unidirectional coupling 11 1 ends is connected with second driving shaft 12, and the coupling shaft of the second unidirectional coupling 11 the other ends is connected with an end of the first transmission shaft 9; The other end of the first transmission shaft 9 is installed on the deckle board of described frame 3 opposite sides by bearing; Second largest gear 10 is positioned at frame 3 and is fixedly mounted on described the first transmission shaft 9.The modulus of described first gear 6 is identical with the modulus of second largest gear 10, and the modulus of first gear 6 and 10 outer gearings of second largest gear.
Axis between described input shaft 1, the first transmission shaft 9, second driving shaft 12, the 3rd transmission shaft 15 and the output shaft 7 four is parallel to each other.
As shown in Figure 2, described the first unidirectional coupling 5 and the second unidirectional coupling 11 form by shell 16, ratchet wheel 17, ball 18, spring spindle 19, clamping bolt 20 and shell end cap 21.
The ratchet wheel 17 of described unidirectional coupling is solid of rotation, and the external diameter of this ratchet wheel 17 is less than the internal diameter of shell 16, make this ratchet wheel 17 pack into shell 16 interior after, Spielpassung between the two.There is coupling shaft at the center of these ratchet wheel 17 1 end end faces, is used for the residing unidirectional coupling of this ratchet wheel is connected with input shaft 1 or second driving shaft 12.Outer round surface at ratchet wheel 17 is processed with four ball mounting grooves that connect the axial length direction of ratchet wheel 17.And consisting of described each ball mounting groove is by a minor face 8 and the trough with straight angle that long limit 22 consists of.After extend on the plane that the minor face 8 of each ball mounting groove of ball forms through the axis of runner 17; The plane that the long limit 22 of this ball mounting groove forms is mutually vertical with the plane that described ball mounting groove minor face forms, and makes in four quadrants that are distributed in this ratchet wheel 17 of each ball mounting groove symmetry.The length of described each ball mounting groove minor face 8 equals the diameter of ball 18 and the matching gap sum between shell 16 and the ratchet wheel 17.It is the rolling surface of ball 18 that described each ball is installed 22 formed planes, flute length limit.
On the plane of the minor face of described each ball mounting groove, a blind hole is arranged all, be used for placing spring.4 springs place respectively in the blind hole.4 spring spindles 19 are installed in respectively in the blind hole, and an end face of each spring spindle 19 all with the spring contact that places in the blind hole; Be Spielpassung between each spring spindle 19 and each blind hole.4 balls 18 lay respectively on the rolling surface of a ball mounting groove, and the outer round surface of this ball all with another end contact of each spring spindle 19.
The shell 16 of described unidirectional coupling is the hollow solid of rotation of end sealing; There is coupling shaft at end cap center at the closed end of shell 16, is used for the residing unidirectional coupling of this shell is connected with output shaft 7 or the first transmission shaft 9.The other end of shell 16 is open-mouth end, and the mounting hole of shell end cap 21 is arranged at the end face of this open-mouth end.There is the via hole of ratchet wheel 17 end face center coupling shafts at the center of shell end cap 21.Shell end cap 21 is fixed on the end face of shell 16 by clamping bolt 20, with ratchet wheel 17, spring spindle 19 and ball 18 sealings in the enclosure.
The difference of described unidirectional coupling and common coupling is, unidirectional coupling can the one direction carry-over moment, its transmission principle can describe by the B-B view of Fig. 3, when ratchet wheel 17 clockwise rotates, ball 18 will be rotated and roll to the constriction of ball mounting groove by frictional force, and wedging is 17 of shell 16 and ratchet wheels, so that shell 16 together turns round, unidirectional coupling enters bonding state; When ratchet wheel 17 turned counterclockwise, ball 18 was rolled into the spacious part of ball mounting groove, and ratchet wheel 17 idle running can not drive shell 16 revolutions.
The ball mounting groove of described the first unidirectional coupling 5 inner ratchet wheels is opposite with the ball mounting groove opening direction of the second unidirectional coupling 11 inner ratchet wheels, illustrate as can be known that according to above-mentioned transmission principle to unidirectional coupling the driving direction of the first unidirectional coupling 5 and the second unidirectional coupling 11 is opposite.
Below in conjunction with Fig. 1, set forth specific works process of the present invention.
In the present embodiment, when ratchet wheel 17 turned clockwise, the outer ring that drives the first unidirectional coupling by ball 18 clockwise rotated.
The direction of rotation of the outer ring of the sense of rotation of described the second unidirectional coupling outer ring and the first unidirectional coupling.When the ratchet wheel in the second unidirectional coupling was rotated counterclockwise, the outer ring that drives this second unidirectional coupling by ball rotated counterclockwise.
The transmission process of present embodiment is: when input shaft 1 turned clockwise, by the Transmitted chains of the first small gear 2 → driving gear the 3 14 → the second small gear 13, the ratchet wheel that drives the second unidirectional coupling 11 dallied clockwise; The outer ring that drives simultaneously directly the first unidirectional coupling 5 turns clockwise, and the first unidirectional coupling 5 enters bonding state, drives output shaft 7 output that turns clockwise.
When input shaft 1 was rotated counterclockwise, the ratchet wheel that directly drives the first unidirectional coupling 5 dallied counterclockwise; Pass through simultaneously the Transmitted chains of the first small gear 2 → driving gear the 3 14 → the second small gear 13, the ratchet wheel that drives the second unidirectional coupling 11 is rotated counterclockwise, the second unidirectional coupling 11 enters bonding state, driving transmission shaft 1 is rotated counterclockwise, by the transmission of second largest gear 10 → first gear 6, finally drive output shaft 7 output that turns clockwise.
In the present embodiment, no matter input shaft 1 is rotated counterclockwise or turns clockwise, and 7 total maintenances of output shaft turn clockwise, and are consistent with the driving direction of the first unidirectional coupling 5.
Claims (3)
1. a transmission device is characterized in that, comprises frame, input shaft, output shaft, transmission shaft, unidirectional coupling and gear; Wherein:
A. described transmission device is stage-geared, comprises 2 gearwheels and 3 small gears, and 2 gearwheels are respectively first gear and second largest gear; 3 small gears are respectively the first small gear, the second small gear and third pinion; Described transmission shaft comprises the first transmission shaft, second driving shaft and the 3rd transmission shaft; Described unidirectional coupling comprises the first unidirectional coupling and the second unidirectional coupling; Input shaft is positioned at frame, and an end is installed on the deckle board of frame one side; The other end of input shaft is installed on the supporting frame that is positioned at frame, and is fixedly connected with the coupling shaft of the first unidirectional coupling one end; The first small gear is positioned at frame and is fixedly mounted on the described input shaft; The 3rd transmission shaft is positioned at frame, and an end is installed on the deckle board of described frame one side, and the other end is installed on the interior supporting frame of described frame; Third pinion is positioned at frame and is fixedly mounted on described the 3rd transmission shaft; Second driving shaft is positioned at frame, and an end is installed on the deckle board of described frame one side, and the other end is installed on the interior supporting frame of described frame, and is fixedly connected with the coupling shaft of the second unidirectional coupling one end; The second small gear is positioned at frame and is fixedly mounted on the described second driving shaft; Described the first small gear, the second small gear are identical with third pinion three's modulus, and intermeshing between the first small gear, the second small gear and the third pinion;
B. the first unidirectional coupling and the second unidirectional coupling all are positioned at frame; The coupling shaft of the first unidirectional coupling one end is connected with input shaft, and an end of the output shaft on the coupling shaft of the first unidirectional coupling the other end and the deckle board that is installed in the frame opposite side by bearing is connected; The other end of output shaft is positioned at outside the frame; First gear is positioned at frame and is fixedly mounted on the output shaft; The coupling shaft of the second unidirectional coupling one end is connected with second driving shaft, and the coupling shaft of the second unidirectional coupling the other end is connected with an end of the first transmission shaft; The other end of the first transmission shaft is installed on the deckle board of described frame opposite side; Second largest gear is positioned at frame and is fixedly mounted on described the first transmission shaft; The modulus of described first gear is identical with the modulus of second largest gear, and the modulus of first gear and second largest gear outer gearing;
C. the axis between described input shaft, the first transmission shaft, second driving shaft, the 3rd transmission shaft and the output shaft is parallel to each other;
D. described the first unidirectional coupling and the second unidirectional coupling form by shell, ratchet wheel, ball, spring spindle and shell end cap; The ratchet wheel of described unidirectional coupling is solid of rotation, and the external diameter of this ratchet wheel is less than the internal diameter of shell, make this ratchet wheel pack in the shell after, Spielpassung between the two; There is coupling shaft at the center of this ratchet wheel one end end face, is used for the residing unidirectional coupling of this ratchet wheel is connected with input shaft or second driving shaft; Outer round surface at ratchet wheel is processed with four ball mounting grooves that connect the axial length direction of ratchet wheel; And consisting of described each ball mounting groove is by a minor face and the trough with straight angle that long limit consists of; After extend on the plane that the minor face of each ball mounting groove of ball forms through the axis of runner; The plane that the long limit of this ball mounting groove forms is mutually vertical with the plane that described ball mounting groove minor face forms, and makes in four quadrants that are distributed in this ratchet wheel of each ball mounting groove symmetry; The length of described each ball mounting groove minor face equals the diameter of ball and the matching gap sum between shell and the ratchet wheel; It is the rolling surface of ball that described each ball is installed formed plane, flute length limit; On the plane of the minor face of described each ball mounting groove, a blind hole is arranged all, be used for placing spring; 4 springs place respectively in the blind hole; 4 spring spindles are installed in respectively in the blind hole, and an end face of each spring spindle all with the spring contact that places in the blind hole; Be Spielpassung between each spring spindle and each blind hole; 4 balls lay respectively on the rolling surface of a ball mounting groove, and the outer round surface of this ball all with another end contact of each spring spindle.
2. transmission device as claimed in claim 1 is characterized in that, the shell of described unidirectional coupling is the hollow solid of rotation of end sealing; There is coupling shaft at end cap center at the closed end of shell, is used for the residing unidirectional coupling of this shell is connected with output shaft or the first transmission shaft; The other end of shell is open-mouth end, and the mounting hole of shell end cap is arranged at the end face of this open-mouth end; There is the via hole of ratchet wheel end face center coupling shaft at the center of shell end cap; The shell end cap is fixed on the end face of shell by clamping bolt, with ratchet wheel, spring spindle and ball sealing in the enclosure.
3. transmission device as claimed in claim 1, it is characterized in that, the ball mounting groove of the inner ratchet wheel of described the first unidirectional coupling is opposite with the ball mounting groove opening direction of the inner ratchet wheel of the second unidirectional coupling, illustrate as can be known that according to above-mentioned transmission principle to unidirectional coupling the driving direction of the first unidirectional coupling and the second unidirectional coupling is opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220301771 CN202746509U (en) | 2012-06-26 | 2012-06-26 | Transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220301771 CN202746509U (en) | 2012-06-26 | 2012-06-26 | Transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202746509U true CN202746509U (en) | 2013-02-20 |
Family
ID=47705908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220301771 Withdrawn - After Issue CN202746509U (en) | 2012-06-26 | 2012-06-26 | Transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202746509U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720807A (en) * | 2012-06-26 | 2012-10-10 | 西北工业大学 | Transmission device capable of changing reciprocating rotation motion into unidirectional rotation motion |
| CN104989816A (en) * | 2015-06-09 | 2015-10-21 | 中国人民解放军空军工程大学 | Double-input and single-output constant-rotation-speed control system |
-
2012
- 2012-06-26 CN CN 201220301771 patent/CN202746509U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720807A (en) * | 2012-06-26 | 2012-10-10 | 西北工业大学 | Transmission device capable of changing reciprocating rotation motion into unidirectional rotation motion |
| CN102720807B (en) * | 2012-06-26 | 2015-01-28 | 西北工业大学 | Transmission device capable of changing reciprocating rotation motion into unidirectional rotation motion |
| CN104989816A (en) * | 2015-06-09 | 2015-10-21 | 中国人民解放军空军工程大学 | Double-input and single-output constant-rotation-speed control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130220 Effective date of abandoning: 20150128 |
|
| RGAV | Abandon patent right to avoid regrant |