CN102562858A - Embedded unidirectional shaft and gear assembly - Google Patents
Embedded unidirectional shaft and gear assembly Download PDFInfo
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- CN102562858A CN102562858A CN2012100529853A CN201210052985A CN102562858A CN 102562858 A CN102562858 A CN 102562858A CN 2012100529853 A CN2012100529853 A CN 2012100529853A CN 201210052985 A CN201210052985 A CN 201210052985A CN 102562858 A CN102562858 A CN 102562858A
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- gear
- rotatingshaft
- powder
- annulus
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Abstract
The invention discloses an embedded unidirectional shaft and gear assembly, which comprises a rotary shaft, a gear and a retainer ring, wherein the retainer ring and an axle hole of the gear are sleeved at one end of the rotary shaft sequentially. The embedded unidirectional shaft and gear assembly is characterized in that a circular through hole perpendicular to the rotary shaft is arranged on the rotary shaft on the outer side of the retainer ring, a slide column is inserted in the circular through hole, a ring is arranged at the inner end of the gear, three arc grooves connected mutually are arranged on the inner wall of the ring, right-angle walls are arranged at one ends of the arc grooves facing the rotation direction, arced walls are arranged at the other ends of the arc grooves opposite to the rotation direction, one end of the slide column is inserted into one of the arc grooves, and the gear and the ring are sintered integrally by powder metallurgy pressing. The embedded unidirectional shaft and gear assembly is capable of realizing unidirectional rotation, is simple in structure, easy to machine, lowered in production cost and can be used for unidirectional rotation mechanisms widely.
Description
Technical field
The present invention relates to a kind of improvement of ratchet, specifically a kind of built-in one-way shaft tooth is applicable to the careless mechanism of getting rid of on the mowing machine, also is applicable to the mechanism of other one-way rotation certainly.
Background technique
Present employed one-way rotation mechanism comprises rotatingshaft, gear and ratchet mostly, and rotatingshaft inserts in the axis hole of gear; On rotatingshaft, be provided with fixing ratchet; When rotatingshaft when direction is rotated, gear can drive phase gear and rotate, this moment, ratchet was in sliding mode; When the rotatingshaft backward rotation, ratchet withstands corresponding tooth, and gear does not drive the gear that is meshed and rotates.The deficiency of this one-way rotation mechanism is: because its one-way rotation realizes through ratchet, and ratchet and rotatingshaft fix, and on the end wall of gear, also will establish corresponding tooth, so complex structure, improved processing cost; In addition, employed gear is turning processing, makes its processing time consuming effort.
Summary of the invention
The built-in one-way shaft tooth that the object of the present invention is to provide a kind of processing simple in structure, easy, cost of production to reduce significantly.
In order to reach above purpose; The technological scheme that the present invention adopted is: this built-in one-way shaft tooth; Comprise rotatingshaft, gear and baffle ring; The axis hole of baffle ring and gear is enclosed within the end of rotatingshaft successively, it is characterized in that: on the rotatingshaft in the baffle ring outside, be provided with the manhole perpendicular to rotatingshaft, in manhole, insert traveller; The inner of described gear is an annulus, on the inwall of annulus, is provided with interconnective three curve baths, and the end towards sense of rotation of curve bath is a right angle walls, and the end towards the reverse turn direction of curve bath is the radian wall; One end of traveller inserts in the curve bath.
The present invention also implements through following measure: described gear and annulus adopt powder metallurgy pressing to be sintered to an integral body.
The outer end of described rotatingshaft is provided with the flexible fastening card.
The length of described traveller equals the groove depth sum of the diameter and the curve bath of axis hole.
Beneficial effect of the present invention is: compare with the one-way rotation mechanism of present use, can not only realize one-way rotation, and simple in structure, easy processing, cost of production have had significantly and reduces.Can be widely used in one-way rotation mechanism.
Description of drawings
Fig. 1 is a structure of the present invention cross-sectional schematic vertically;
Fig. 2 looks schematic representation for the gear of the present invention and the annulus right side;
Fig. 3 looks schematic representation for a gear of the present invention and an annulus left side;
Fig. 4 is a rotatingshaft schematic top plan view of the present invention;
Fig. 5 looks schematic representation for a flexible fastening card of the present invention left side;
Among the figure: 1, rotatingshaft; 2, gear; 3, baffle ring; 4, manhole; 5, traveller; 6, annulus; 7, curve bath; 8, right angle walls; 9, radian wall; 10, flexible fastening card; 11, axis hole.
Embodiment
Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 have provided an embodiment.Make the present invention with reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5.This built-in one-way shaft tooth; Comprise rotatingshaft 1, gear 2 and baffle ring 3; The axis hole 11 of baffle ring 3 and gear 2 is enclosed within the end of rotatingshaft 1 successively, it is characterized in that: on the rotatingshaft 1 in baffle ring 3 outsides, be provided with the manhole 4 perpendicular to rotatingshaft 1, in manhole 4, insert traveller 5; The inner of described gear 2 is an annulus 6, on the inwall of annulus 6, is provided with interconnective three curve baths 7, and the end towards sense of rotation of curve bath 7 is a right angle walls 8, and the end towards the reverse turn direction of curve bath 7 is a radian wall 9; One end of traveller 5 inserts in the curve bath 7.When rotatingshaft 1 when sense of rotation is rotated; One end of traveller 5 inserts in the curve bath 7 and the end towards sense of rotation of stirring curve bath 7 is a right angle walls 8; Annulus 6 is rotated; Because the outer end connection gear 2 of annulus 6, so gear 2 also rotates, the rotation of gear 2 just drives the gear that is meshed with it and rotates; When rotatingshaft 1 during towards the backward rotation of sense of rotation, the end that traveller 5 inserts in the curve baths 7 slides along the radian wall 9 towards the reverse turn direction of curve bath 7, and this end of traveller 5 is headed in the manhole 4; No longer stir curve bath 7; The other end of traveller 5 inserts in the other side's the curve bath 7, and is reciprocal successively, makes rotatingshaft 1 rotation of skidding; The gear 2 that no longer drives annulus 6 and connect rotates, thereby has realized the one-way rotation of gear 2.
As improvement of the present invention: described gear 2 adopts powder metallurgy pressing to be sintered to an integral body with annulus 6, thereby has simplified procedure, has reduced production cost; Described powder metallurgy comprises manganese powder 0.5-1%, molybdenum powder 0.8-1.2%, copper powder 0.6-1%, chromium powder 0.5-1%, niobium powder 0.05-0.08%, graphite 0.4-0.6%, plasticizer 0.3-0.6%, and surplus is 100 purpose water-atomized iron powders.
Its technical order is following:
Averag density:＞7.6g/ cm
3
Heat treatment hardness: HRC 50-55;
Tensile strength:＞1050 MPa;
Dimensional accuracy grade: IT 7-8;
Up-to-standard rate: 99%
Acting as of described plasticizing agent is shaped the powder metallurgy particle bond, promotes flowability, is beneficial to the low temperature compacting, can adopt phenolic aldehyde rubber-like or paraffin class plasticizing agent.
The water-atomized iron powder of described 100 purpose water-atomized iron powders for adopting Laigang, Shandong powder metallurgy Co., Ltd of group to produce.
The outer end of described rotatingshaft 1 is provided with flexible fastening card 10, can prevent that through flexible fastening card 10 gear 2 from outwards sliding.
The length of described traveller 5 equals the groove depth sum of the diameter and the curve bath 7 of axis hole 11.
Claims (4)
1. built-in one-way shaft tooth; Comprise rotatingshaft (1), gear (2) and baffle ring (3); The axis hole (11) of baffle ring (3) and gear (2) is enclosed within the end of rotatingshaft (1) successively; It is characterized in that: on the rotatingshaft (1) in baffle ring (3) outside, be provided with manhole (4), in manhole (4), insert traveller (5) perpendicular to rotatingshaft (1); The inner of described gear (2) is annulus (6); On the inwall of annulus (6), be provided with interconnective three curve baths (7); End towards sense of rotation of curve bath (7) is right angle walls (8), and the end towards the reverse turn direction of curve bath (7) is radian wall (9); One end of traveller (5) inserts in the curve bath (7).
2. built-in one-way shaft tooth according to claim 1 is characterized in that: described gear (2) and annulus (6) adopt powder metallurgy pressing to be sintered to an integral body; Described powder metallurgy comprises manganese powder 0.5-1%, molybdenum powder 0.8-1.2%, copper powder 0.6-1%, chromium powder 0.5-1%, niobium powder 0.05-0.08%, graphite 0.4-0.6%, plasticizer 0.3-0.6%, and surplus is 100 purpose water-atomized iron powders.
3. built-in one-way shaft tooth according to claim 1 is characterized in that: the outer end of described rotatingshaft (1) is provided with flexible fastening card (10).
4. built-in one-way shaft tooth according to claim 1 is characterized in that: the length of described traveller (5) equals the groove depth sum of the diameter and the curve bath (7) of axis hole (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100529853A CN102562858A (en) | 2012-03-02 | 2012-03-02 | Embedded unidirectional shaft and gear assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100529853A CN102562858A (en) | 2012-03-02 | 2012-03-02 | Embedded unidirectional shaft and gear assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102562858A true CN102562858A (en) | 2012-07-11 |
Family
ID=46409128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100529853A Pending CN102562858A (en) | 2012-03-02 | 2012-03-02 | Embedded unidirectional shaft and gear assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102562858A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB556080A (en) * | 1941-02-12 | 1943-09-20 | Clemson Bros Inc | Improved free-wheel or ratchet clutch mechanism |
| US2905294A (en) * | 1956-03-12 | 1959-09-22 | Clemson Bros Inc | Shuttle-pin clutch drive mechanism for lawn mowers |
| FR2732737A1 (en) * | 1995-04-07 | 1996-10-11 | Majar Sa | Freewheel for transmission drives in agriculture machinery |
| CN202441763U (en) * | 2012-03-02 | 2012-09-19 | 莱芜市鼎益粉末制品有限公司 | Built-in one-way shaft tooth |
-
2012
- 2012-03-02 CN CN2012100529853A patent/CN102562858A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB556080A (en) * | 1941-02-12 | 1943-09-20 | Clemson Bros Inc | Improved free-wheel or ratchet clutch mechanism |
| US2905294A (en) * | 1956-03-12 | 1959-09-22 | Clemson Bros Inc | Shuttle-pin clutch drive mechanism for lawn mowers |
| FR2732737A1 (en) * | 1995-04-07 | 1996-10-11 | Majar Sa | Freewheel for transmission drives in agriculture machinery |
| CN202441763U (en) * | 2012-03-02 | 2012-09-19 | 莱芜市鼎益粉末制品有限公司 | Built-in one-way shaft tooth |
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Legal Events
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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: 20120711 |