CN202914582U - Overrunning clutch - Google Patents
Overrunning clutch Download PDFInfo
- Publication number
- CN202914582U CN202914582U CN 201220454015 CN201220454015U CN202914582U CN 202914582 U CN202914582 U CN 202914582U CN 201220454015 CN201220454015 CN 201220454015 CN 201220454015 U CN201220454015 U CN 201220454015U CN 202914582 U CN202914582 U CN 202914582U
- Authority
- CN
- China
- Prior art keywords
- dish
- chute
- face
- ball
- sliding chute
- Prior art date
- 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 - Fee Related
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Abstract
The utility model provides a structure of an overrunning clutch. The overrunning clutch comprises a left disc, a right disc, a rolling ball and a spring lifting pin, a left sliding chute and a circumferential sliding chute are arranged on the left disc, and a right sliding chute and the spring lifting pin are disposed on the right disc. A half of rolling ball is located in the left sliding chute or the circumferential sliding chute, the other half of rolling ball is located in the right sliding chute, and when a rotating speed difference exists between the left disc and the right disc, the rolling ball enables the left disc and the right disc to be in a junction state or an overrunning state under the combined action of the left sliding chute, the right sliding chute, the spring lifting pin and a centrifugal force. According to the overrunning clutch, high pair transmission of an existing heavy load overrunning clutch is replaced by low pair transmission, the reliability of the overrunning clutch is improved, the overrunning clutch is suitable for heavy load occasions, and the service life of the overrunning clutch is prolonged.
Description
Technical field
The utility model belongs to mechanical transmission fields, and particularly a kind of have a high reliability heavy duty free wheel device.
Background technique
At present, heavily loaded free wheel device commonly used in engineering machinery substantially all belongs to roller type, and it is comprised of outer ring, cylindrical roller, retainer or spring knock pin, inner ring.This free wheel device is by cylindrical roller wedging outer ring and inner ring, frictionally transmitting torque.When the work, it is more serious that roller and retainer wear and tear with this free wheel device of retainer, and retainer is damaged soon; When the work, the wearing and tearing iron filings of roller and outer ring and inner ring can enter in the mounting hole of spring, affect the work of spring knock pin with this free wheel device of spring knock pin.In summary, existing heavily loaded free wheel device transfer of torque is to contact with the Internal and external cycle higher pair by cylindrical roller; The higher pair transmission can produce very large contact stress, accelerates the wearing and tearing of part.Therefore, existing heavily loaded free wheel device has the shortcomings such as complex structure, functional reliability are not high, the life-span is short.
Summary of the invention
The purpose of this utility model is in order to solve the technical problem that above-mentioned clutch configuration is complicated, functional reliability is not high, the life-span is short, and provide a kind of simple in structure, the heavily loaded free wheel device that reliability is high.
For achieving the above object, the concrete technological scheme of the utility model employing is:
A kind of free wheel device comprises left dish, right dish, ball, spring knock pin, and it is characterized in that: left dish is coaxial with right dish; Left disk axis is vertical with end face, be provided with the left chute of semi-circular cross-section and circumference chute at left dish end face, left chute end is and 1/4th spheres of semi-circular cross-section with diameter that left chute quantity is even number, left chute arranges with respect to left dish end face Central Symmetry, and left chute and circumference chute are tangent; Right disk axis is vertical with end face, be provided with right rail identical with the upper left chute quantity of left dish end face, that the cross section is identical at right dish end face, the right rail two end part are and 1/4th spheres of semi-circular cross-section with diameter that right rail is arranged with respect to right dish end face Central Symmetry; Left chute equals 1/4th sphere centre and the right dish end face centre distance of the right dish end face of right rail center one end away from the distance at 1/4th sphere centre of left dish end face center one end and left dish end face center; The diameter of ball is identical with left chute semi-circular cross-section diameter, adopt Spielpassung, ball can move by the arbitrary position skid in left chute and circumference chute, and each ball is corresponding one by one with the right rail of right dish, half is arranged in left chute or circumference chute ball, and second half is arranged in right rail; Right rail is provided with spring knock pin near an end at right dish end face center, and spring knock pin pushes up ball to the direction away from right dish end face center.
The utility model has been avoided existing heavily loaded free wheel device higher pair contact, the problem that adopts the frictional force transmitting torque to bring.Ball skid in chute is moving, weares and teares less; Transmitting torque is that the pressure that keeps left between dish, ball, the right dish is realized, has reduced the contact stress between each driving parts of free wheel device, has improved the reliability of free wheel device, is applicable to heavily loaded occasion, has prolonged the working life of clutch.
Description of drawings:
Fig. 1 is left dish of the present utility model, right dish structural drawing, n among the figure
1, n
2Be rotating speed;
Fig. 2 is the left dish of the utility model, right dish combining structure figure;
Fig. 3 is that the left dish of the utility model, right dish surmount structural drawing.
Embodiment:
Below in conjunction with Fig. 1, Fig. 2, Fig. 3 the utility model is elaborated.
As shown in Figure 1.The utility model is free wheel device, and it comprises left dish (1), right dish (2), ball (3), spring knock pin (4), and left dish (1) is coaxial with right dish (2); Left dish (1) axis is vertical with end face, be provided with the left chute of semi-circular cross-section (1a) and circumference chute (1b) at left dish (1) end face, left chute (1a) end is and 1/4th spheres of semi-circular cross-section with diameter, left chute (1a) quantity is even number, left chute (1a) is with respect to left dish (1) end face Central Symmetry layout, and left chute (1a) is tangent with circumference chute (1b); Right dish (2) axis is vertical with end face, be provided with right rail (2a) identical with the upper left chute of left dish (1) end face (1a) quantity, that the cross section is identical at right dish (2) end face, right rail (2a) two end part are and 1/4th spheres of semi-circular cross-section with diameter that right rail (2a) is arranged with respect to right dish (2) end face Central Symmetry; Left chute (1a) equals 1/4th sphere centre and right dish (2) the end face centre distance of the right dish of right rail (2a) (2) end face center one end away from the distance at 1/4th sphere centre of left dish (1) end face center one end and left dish (1) end face center; The diameter of ball (3) is identical with left chute (1a) semi-circular cross-section diameter, adopt Spielpassung, ball (3) can move by the arbitrary position skid in left chute (1a) and circumference chute (1b), each ball (3) is corresponding one by one with the right rail (2a) of right dish (2), half is arranged in left chute (1a) or circumference chute (1b) ball (3), and second half is arranged in right rail (2a); Right rail (2a) is provided with spring knock pin (4) near the end at right dish (2) end face center, and to the direction away from right dish (2) end face center, left chute (1a) is front to be subject to pre-thrust to spring knock pin (4) entering to make ball (3) with ball (3) top.
As shown in Figure 1 and Figure 2.Work as n
1＜n
2The time, under the active force and centrifugal force of spring knock pin (4), ball (3) is moving at circumference chute (1b) skid near the outside of circumference chute (1b) all the time, after arriving circumference chute (1b) and the tangent place of left chute (1a), ball (3) enters left chute (1a) under the acting in conjunction of right rail (2a), spring knock pin (4) and centrifugal force, and the left chute of skid trend (1a) is away from left dish (1) end face center one end; When ball (3) arrive left chute (1a) away from left dish (1) end face center one end limit position after, ball (3) also will arrive right rail (2a) away from right dish (2) end face center one end limit position simultaneously, ball (3) is in two 1/4th spheres this moment, right dish (2) is passed to ball (3) by sphere-contact with active force, ball (3) is passed to left dish (1) by sphere-contact with active force, to realize in conjunction with the moment of torsion transmission.
Such as Fig. 1, shown in Figure 3.Work as n
1＞n
2The time, ball (3) overcomes the left chute of elastic force skid trend (1a) of centrifugal force and spring knock pin (4) near left dish (1) end face center one end under the acting in conjunction of left chute (1a) and right rail (2a), when ball (3) arrives the position, point of contact of left chute (1a) and circumference chute (1b), ball (3) also arrives right rail (2a) simultaneously near right dish (2) end face center one end limit position, left dish (1) and right dish (2) break away from fully, and in the same way by the point of contact of next left chute (1a) with circumference chute (1b), left dish (1) and right dish (2) peace are rotated according to speed separately, and ball (3) skid in circumference chute (1b) is moving.
Work as n
1=n
2The time, left dish (1) and right dish (2) are without relative rotation speed, and ball (3) is with respect to the invariant position of right dish (2), and left dish (1) rotates with identical speed with right dish (2), is independent of each other.
Claims (1)
1. a free wheel device comprises left dish, right dish, ball, spring knock pin, and it is characterized in that: left dish is coaxial with right dish; Left disk axis is vertical with end face, be provided with the left chute of semi-circular cross-section and circumference chute at left dish end face, left chute end is and 1/4th spheres of semi-circular cross-section with diameter that left chute quantity is even number, left chute arranges with respect to left dish end face Central Symmetry, and left chute and circumference chute are tangent; Right disk axis is vertical with end face, be provided with right rail identical with the upper left chute quantity of left dish end face, that the cross section is identical at right dish end face, the right rail two end part are and 1/4th spheres of semi-circular cross-section with diameter that right rail is arranged with respect to right dish end face Central Symmetry; Left chute equals 1/4th sphere centre and the right dish end face centre distance of the right dish end face of right rail center one end away from the distance at 1/4th sphere centre of left dish end face center one end and left dish end face center; The diameter of ball is identical with left chute semi-circular cross-section diameter, adopt Spielpassung, ball can move by the arbitrary position skid in left chute and circumference chute, and each ball is corresponding one by one with the right rail of right dish, half is arranged in left chute or circumference chute ball, and second half is arranged in right rail; Right rail is provided with spring knock pin near an end at right dish end face center, and spring knock pin pushes up ball to the direction away from right dish end face center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220454015 CN202914582U (en) | 2012-09-07 | 2012-09-07 | Overrunning clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220454015 CN202914582U (en) | 2012-09-07 | 2012-09-07 | Overrunning clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202914582U true CN202914582U (en) | 2013-05-01 |
Family
ID=48162901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220454015 Expired - Fee Related CN202914582U (en) | 2012-09-07 | 2012-09-07 | Overrunning clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202914582U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817935A (en) * | 2012-09-07 | 2012-12-12 | 四川大学 | Overrunning clutch |
| CN106523662A (en) * | 2016-11-22 | 2017-03-22 | 沃得重工(中国)有限公司 | Reversing preventing device for chain wheel |
| CN111470268A (en) * | 2020-04-27 | 2020-07-31 | 朱箫笛 | Braking device for belt conveyor |
-
2012
- 2012-09-07 CN CN 201220454015 patent/CN202914582U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817935A (en) * | 2012-09-07 | 2012-12-12 | 四川大学 | Overrunning clutch |
| CN106523662A (en) * | 2016-11-22 | 2017-03-22 | 沃得重工(中国)有限公司 | Reversing preventing device for chain wheel |
| CN111470268A (en) * | 2020-04-27 | 2020-07-31 | 朱箫笛 | Braking device for belt conveyor |
| CN111470268B (en) * | 2020-04-27 | 2021-07-30 | 承德县金盈矿业有限公司 | Braking device for belt conveyor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130501 Termination date: 20170907 |