CN202118152U - One-way transmission device - Google Patents
One-way transmission device Download PDFInfo
- Publication number
- CN202118152U CN202118152U CN2011202095370U CN201120209537U CN202118152U CN 202118152 U CN202118152 U CN 202118152U CN 2011202095370 U CN2011202095370 U CN 2011202095370U CN 201120209537 U CN201120209537 U CN 201120209537U CN 202118152 U CN202118152 U CN 202118152U
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- CN
- China
- Prior art keywords
- pin
- unidirectional
- way
- seat
- face
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a one-way transmission device, which belongs to the technical field of transmission machinery and comprises a spindle, output gears and a one-way seat which are coaxial. A one-way seat pin is radially connectedly inserted into the spindle to fix the one-way seat on a spindle end of the spindle, pin holes parallel to the axis are arranged on the end face of the one-way seat facing the output gears, all the pin holes are symmetrically distributed with the axis serving as the central line, and a one-way retractable pin is mounted in each pin hole, and a compression spring is arranged between the bottom of each pin hole and the one-way retractable pin. A plurality of oblique teeth matched with the one-way retractable pins are evenly distributed on the end faces of output gears facing the one-way seat, the oblique teeth with the same shape and size are annularly distributed on the circumference corresponding to the one-way retractable pins, and the top of each oblique tooth is level to the end face where the oblique tooth is arranged. When the spindle rotates positively, the one-way retractable pins are inserted into gear grooves to enable the output gears to rotate, and when the spindle rotates reversely, the one-way retractable pins retract back into the one-way seat, thereby achieving sliding rotation between the one-way seat and the output gears.
Description
Technical field
The utility model relates to a kind of transmission device, relates in particular to a kind of unidirectional transmission, belongs to the gearing technical field, can be used for the lawn machine.
Background technique
Commonly used on the turf machinery when promptly main shaft was rotated in the forward, output gear rotated transmitting torque thereupon in the same way to unidirectional transmission, and when the main shaft counterrotating, output gear does not change, and realizes unidirectional transmission thus.Present unidirectional transmission adopts free pin rod to join the clutch gear structure; Owing to when free pin rod cooperates with clutch gear, need to keep the space that pin rod is free to slide, have the too short situation of length of thread engagement; Cause pin or gear to damage in early days easily, thereby make life of product shorter.
The model utility content
The purpose of the utility model is, overcomes the problem that exists in the existing technology, and a kind of unidirectional transmission is provided, and is simple in structure, reliable operation, long service life.
For solving above technical problem; A kind of unidirectional transmission that the utility model provided; The main shaft and the output gear that comprise coaxial line; Also comprise the unidirectional seat with said main shaft coaxial line, unidirectional seat pin radially is plugged on the said main shaft will said unidirectional axle head that is fixed in said main shaft, and said unidirectional seat surface is provided with the pin-and-hole with said parallel axes to the end face of said output gear; Each said pin-and-hole is to be separately installed with unidirectional flexible pin in center symmetrical distribution and the pin-and-hole with said axis, is respectively equipped with stage clip between the bottom of each said pin-and-hole and the ear end face of said unidirectional flexible pin; Said output gear is evenly distributed with the suitable helical teeth of a plurality of and said unidirectional flexible pin on the end face of said unidirectional seat; The shape size of each said helical teeth is identical, and with said axis be the center in the form of a ring array distribution with the corresponding circumference of said unidirectional flexible pin on; The Surface of action of each helical teeth is towards the end face of said unidirectional seat, and the front-end face of said flexible pin withstands on the Surface of action of helical teeth, and the tooth top of each said helical teeth is concordant with the end face of said output gear, and the Surface of action of said helical teeth is progressively carried out the transition at the bottom of the teeth groove by tooth top.
With respect to existing technology, the utility model has been obtained following beneficial effect: unidirectional flexible pin remains outwardly directed trend under the promotion of stage clip tension force; When main shaft was rotated in the forward, at the bottom of unidirectional flexible pin progressively slided to teeth groove along the Surface of action of output gear end face helical teeth, in the time of at the bottom of sliding to teeth groove, unidirectional flexible pin was stuck, and output gear can rotate with main shaft in the same way; When the main shaft counterrotating, the tension force that the Surface of action of helical teeth overcomes stage clip in the pin-and-hole of seat, makes unidirectional flexible pin top receipt to trackslip between unidirectional seat and the output gear, realizes the function of unidirectional transmission; The utility model promotes unidirectional flexible pin by the stage clip in the unidirectional seat and cooperates with output gear, and so a plurality of end face spring spindle structures have guaranteed length of thread engagement, make reliable operation, long service life.
Description of drawings
Fig. 1 is the structural representation of the utility model unidirectional transmission.
Among the figure: at the bottom of 1 unidirectional seat pin, 2 main shafts, 3 unidirectional seats, 4 stage clips, 5 unidirectional flexible pins, 6 output gears, 6a helical teeth, 6a-1 tooth top, the 6a-2 teeth groove.
Embodiment
As shown in Figure 1; The unidirectional transmission of the utility model comprises the main shaft 2 of coaxial line, unidirectional seat 3 and output gear 6; Unidirectional seat pin 1 radially is plugged on the main shaft 2 unidirectional 3 axle head that is fixed in main shaft 2; Unidirectional seat 3 end faces towards output gear are provided with the pin-and-hole with parallel axes; Each pin-and-hole is to be separately installed with unidirectional flexible pin 5 in center symmetrical distribution and the pin-and-hole with the axis, is respectively equipped with stage clip 4 between the ear end face of the bottom of each pin-and-hole and unidirectional flexible pin 5 and makes flexible pin 5 keep outwardly directed trend; Output gear 6 is evenly distributed with the suitable helical teeth 6a of a plurality of and unidirectional flexible pin on the end face of unidirectional seat; The shape size of each helical teeth 6a is identical; And with the axis be the center in the form of a ring array distribution with the corresponding circumference of unidirectional flexible pin on, the Surface of action of each helical teeth is towards the end face of unidirectional seat 3, and the front-end face of flexible pin 5 withstands on the Surface of action of helical teeth; The tooth top 6a-1 of helical teeth 6a is concordant with the end face of output gear, and the Surface of action of helical teeth progressively carries out the transition to 6a-2 at the bottom of the teeth groove by tooth top 6a-1.
Unidirectional flexible pin 5 is protruding under the promotion of stage clip 4 tension force; When main shaft 2 is rotated in the forward; Unidirectional flexible pin 5 progressively slides to 6a-2 at the bottom of the teeth groove along the Surface of action of output gear end face helical teeth 6a, at the bottom of sliding to teeth groove, is stuck during 6a-2, and output gear 6 can rotate with main shaft 2 in the same way; When main shaft 2 counterrotatings, the tension force that the Surface of action of helical teeth 6a overcomes stage clip 4 progressively with unidirectional flexible pin 5 top receipt in the pin-and-hole of seat 3, make and can trackslip between unidirectional seat 3 and the output gear 6, realize the function of unidirectional transmission.
Except that the foregoing description, the utility model can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.
Claims (1)
1. unidirectional transmission; The main shaft and the output gear that comprise coaxial line; It is characterized in that: also comprise unidirectional seat with said main shaft coaxial line; Unidirectional seat pin radially is plugged on the said main shaft said unidirectional axle head that is fixed in said main shaft; Said unidirectional seat surface is provided with the pin-and-hole with said parallel axes to the end face of said output gear, each said pin-and-hole with said axis be the center be symmetrically distributed and pin-and-hole in be separately installed with unidirectional flexible pin, be respectively equipped with stage clip between the bottom of each said pin-and-hole and the ear end face of said unidirectional flexible pin; Said output gear is evenly distributed with the suitable helical teeth of a plurality of and said unidirectional flexible pin on the end face of said unidirectional seat; The shape size of each said helical teeth is identical, and with said axis be the center in the form of a ring array distribution with the corresponding circumference of said unidirectional flexible pin on; The Surface of action of each helical teeth is towards the end face of said unidirectional seat, and the front-end face of said flexible pin withstands on the Surface of action of helical teeth, and the tooth top of each said helical teeth is concordant with the end face of said output gear, and the Surface of action of said helical teeth is progressively carried out the transition at the bottom of the teeth groove by tooth top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202095370U CN202118152U (en) | 2011-06-21 | 2011-06-21 | One-way transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202095370U CN202118152U (en) | 2011-06-21 | 2011-06-21 | One-way transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202118152U true CN202118152U (en) | 2012-01-18 |
Family
ID=45459221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202095370U Expired - Lifetime CN202118152U (en) | 2011-06-21 | 2011-06-21 | One-way transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202118152U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104960870A (en) * | 2015-06-15 | 2015-10-07 | 湖北中烟工业有限责任公司 | Positive and negative detecting device for rotary shaft |
| GB2532531A (en) * | 2014-11-24 | 2016-05-25 | Yangzhou Weibang Garden Machine Company Ltd | Roller driving means for a lawn mower |
-
2011
- 2011-06-21 CN CN2011202095370U patent/CN202118152U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2532531A (en) * | 2014-11-24 | 2016-05-25 | Yangzhou Weibang Garden Machine Company Ltd | Roller driving means for a lawn mower |
| GB2532531B (en) * | 2014-11-24 | 2020-10-21 | Yangzhou Weibang Garden Machine Company Ltd | Roller driving means for a lawn mower |
| CN104960870A (en) * | 2015-06-15 | 2015-10-07 | 湖北中烟工业有限责任公司 | Positive and negative detecting device for rotary shaft |
| CN104960870B (en) * | 2015-06-15 | 2017-04-12 | 湖北中烟工业有限责任公司 | Positive and negative detecting device for rotary shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120118 |
|
| CX01 | Expiry of patent term |