CN206368929U - Pawl-type overrunning clutch - Google Patents
Pawl-type overrunning clutch Download PDFInfo
- Publication number
- CN206368929U CN206368929U CN201621480156.5U CN201621480156U CN206368929U CN 206368929 U CN206368929 U CN 206368929U CN 201621480156 U CN201621480156 U CN 201621480156U CN 206368929 U CN206368929 U CN 206368929U
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- CN
- China
- Prior art keywords
- ratchet
- pawl
- positive
- reverse
- gear ring
- 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 kind of pawl-type overrunning clutch.The pawl-type overrunning clutch include casing, positive ratchet, positive component groups, reverse ratchet, counter members group, input shaft, the input shaft is axially arranged and intermeshing sun gear, planetary gear and gear ring, the positive ratchet is moved by the positive component groups between the first bonding station and the first disengaged position, and left side of the positive ratchet in the first bonding station with the ratchet is engaged；The reverse ratchet is moved by the counter members group between the second bonding station and the second disengaged position, and right side of the reverse ratchet in the second bonding station with the ratchet is engaged.Compared with correlation technique, the pawl-type overrunning clutch that the utility model is provided adds the structure setting of reverse ratchet, it can be achieved that gear ring is carried out to lock to braking clockwise, the problem of effectively solving unidirectional steering, efficiency of transmission is high, reliable, control is flexible.
Description
Technical field
The utility model is related to a kind of clutch, more particularly to a kind of pawl-type overrunning clutch.
Background technology
Planetary Gear Transmission gear, has drive sun gear input torque, gear ring braking, planet using input shaft at present
Wheel drive planet carrier slowed down (with respect to sun wheel speed) export, at this moment output the big torque of the slow-speed of revolution；When rotating speed need to be improved,
Gear ring braking is discharged, and planet carrier is engaged with input shaft, makes output and input shaft same rotational speed and torque.This kind of gear
Gear ring is braked, and is braked mostly using multi-disc friction piece, as disk friction clutch is used as brake.Disk friction
Clutch needs more friction plate to obtain big brake force, also needs larger thrust, friction plate is together high with gear ring
Speed rotation, friction plate will excessively produce substantial amounts of frictional heat energy, so that the efficiency of output is reduced, the structure and weight of mechanism
Increase therewith.In addition, thrust is big, the power of demand release is just big, often using hydraulic pressure or air pressure, so additionally increases attached
Plus power source, complicated, fault rate is increased, and the loss of annex energy.
Also part uses pawl-type overrunning clutch, the structure clutch is although reliable, and security is good, structure letter
Single, overload capacity is big, and failure is few, but in high speed rotating speed, noise is big, there is impact during engagement, and also exist can only individual event
The limitation of steering.
Therefore, it is necessary to which providing a kind of new pawl-type overrunning clutch solves above technical problem.
Utility model content
The purpose of this utility model is to provide that a kind of efficiency of transmission is high, reliable, security is good, simple in construction, mistake
Loading capability is big, failure is few, control flexible pawl-type overrunning clutch.
The utility model provides a kind of pawl-type overrunning clutch, including casing, input shaft, axially sets in the input shaft
Put and intermeshing sun gear, planetary gear and gear ring, the planetary gear is fixed with a planet carrier, and the gear ring is nibbled with planetary gear
Conjunction face is internal tooth, otherwise is ratchet, and the casing is located at the radially outer of gear ring, and the pawl-type overrunning clutch also includes setting
In the positive ratchet in casing, reverse ratchet, positive ratchet moved between the first bonding station and the first disengaged position
Positive component groups and the counter members group for moving reverse ratchet between the second bonding station and the second disengaged position；It is described just
Engaged to left side of the ratchet in the first bonding station with the ratchet, the reverse ratchet is in the second bonding station and institute
State the right side engagement of ratchet.
It is preferred that, the positive ratchet and reverse ratchet include with the end of engagement of the ratchet engagement of gear ring, away from engaging
The tail end at end and the pawl arm being connected between end of engagement and tail end, the pawl arm are articulated in the gear ring, the end of engagement
Engage or disengage with gear ring.
It is preferred that, the positive component groups are included in the electricity set in casing to the tail end stretching motion of the positive ratchet
The positive push rod that magnetic is put away sports equipment and set in casing to the end of engagement stretching motion of the positive ratchet；The counter members group bag
Include in end of engagement stretching motion from casing to the reverse ratchet set electromagnetism push rod and in casing to the reverse spine
The reverse push rod that the tail end stretching motion of pawl is set.
It is preferred that, the pawl arm of the positive ratchet and reverse ratchet is closed on the tail end and set.
It is preferred that, the electromagnetism puts away sports equipment, be all provided with oriented ratchet extension inside positive push rod, electromagnetism push rod and reverse push rod
Spring.
It is preferred that, the RADIAL that pivoting point of the positive ratchet on gear ring to the gear ring center of circle is linked to be exists with reverse ratchet
Angle between the RADIAL that pivoting point on gear ring is linked to be to the gear ring center of circle is 45 °.
It is preferred that, the quantity of the ratchet is 12.
Compared with correlation technique, the pawl-type overrunning clutch that the utility model is provided has the advantages that：
First, electromagnetism put away sports equipment, the structure design of positive push rod, electromagnetism push rod and reverse push rod, can shrink automatically, ratchet shrinks
Simultaneously energy self-locking afterwards, makes gear ring when high speed rotates, contactless with ratchet, it is to avoid the noise of contact generation；
2nd, the structure setting of reverse ratchet is added, can be achieved that gear ring is carried out to lock to braking clockwise, it is effective to solve
The problem of unidirectional steering.
Brief description of the drawings
Cross-sectional view during the pawl-type overrunning clutch stop state that Fig. 1 provides for the utility model；
The pawl-type overrunning clutch that Fig. 2 is provided for the utility model cross-sectional view when starting to walk；
Cross-sectional view during the pawl-type overrunning clutch low speed starting that Fig. 3 provides for the utility model；
Cross-sectional view when Fig. 4 runs at high speed for the pawl-type overrunning clutch that the utility model is provided；
Cross-sectional view during the pawl-type overrunning clutch braking that Fig. 5 provides for the utility model.
Embodiment
Describe the utility model in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that not conflicting
In the case of, the feature in embodiment and embodiment in the utility model can be mutually combined.For sake of convenience, hereinafter such as
There are " on ", " under ", "left", "right", " clockwise ", " counterclockwise " printed words, only expression and accompanying drawing upper and lower, left and right in itself,
Clockwise, it is counterclockwise consistent, restriction effect is not played to structure.
Cross-sectional view when referring to the pawl-type overrunning clutch stop state that Fig. 1 provides for the utility model,
The pawl-type overrunning clutch 100 includes gear ring 1, casing 2, positive component groups 3, positive ratchet 4, reverse ratchet 5, reverse structure
Part group 6, input shaft 7, the input shaft 7 is axially arranged and intermeshing sun gear 8 and planetary gear 9.The planetary gear 9 is used
One planet carrier 10 is fixed.The gear ring 1 is internal tooth with the field of conjugate action of planetary gear 9, otherwise is ratchet, and the casing 2 is located at gear ring 1
Radially outer.
The casing 2 is used to install the positive component groups 3, positive ratchet 4, reverse ratchet 5 and counter members group 6, and
Internal structure is shielded.
The input shaft 7 be power transmission member, the sun gear 8 is mechanism central gear, it around fixed axis from
Turn, the planetary gear 9 is fixed in planet carrier 10, in addition to around its center axis rotation, also revolved round the sun around the axis of sun gear 8.
The positive ratchet 4 and reverse ratchet 5 are articulated in the inner radial surface of the casing 2.The He of positive ratchet 4
Reverse ratchet 5 includes nibbling with the end of engagement 41 of the ratchet engagement of gear ring 1,51, the tail end 42,52 away from end of engagement and being connected to
Close the pawl arm 43,53 between end 41,51 and tail end 42,52.The pawl arm 43,53 of the positive ratchet 4 and reverse ratchet 5 is faced
The nearly tail end 42,52 is set, and the minimum power of convenience engages end of engagement 41,51 with ratchet.The inner radial surface of gear ring 1
With the first receiving space 21 and the second receiving space 22, the positive ratchet 4 is contained in first receiving space 21, institute
The side wall pivot joint of the receiving space 21 of pawl arm 43 and first of positive ratchet 4 is stated, the end of engagement 41 of the positive ratchet 4 is first
It is the first disengaged position in receiving space 21, its end of engagement 41 is engaged with the left side 11 of the ratchet of the gear ring 1 to be connect for first
Close position.
The reverse ratchet 5 is contained in second receiving space 22, the pawl arm 53 and second of the reverse ratchet 5
The side wall pivot joint of receiving space 22, the end of engagement 51 of the reverse ratchet 5 is the second disengaged position in the second receiving space 22,
End of engagement 51 is engaged with the right side 12 of the ratchet of the gear ring 1 as the second bonding station.
In adjacent two ratchet, the joint face of the right side of a ratchet and another ratchet left side 11 is inclined plane 13, described
Inclined plane 13 is 11 negative directions (i.e. label ratchet is downward in figure) the inclined face from right side to left side, forms right side
Highly it is less than the height of left side 11, its angle of inclination is 10 °.The ratchet-shaped of this asymmetric trapezium structure, can bear
Larger load, performance is more stable reliable.
The RADIAL that pivoting point of the positive ratchet 4 on gear ring 1 to the center of circle of gear ring 1 is linked to be is with reverse ratchet 5 in tooth
Angle between the RADIAL that pivoting point on circle 1 is linked to be to the center of circle of gear ring 1 is 45 °.Only need to limitation positive and negative direction on each cloth
A bit is put, it is simple in construction, it can equally meet efficient self-locking, reliable and control is flexibly required.
The positive component groups 3 are put away sports equipment 31 and positive push rod 32 including electromagnetism, and the electromagnetism is put away sports equipment 31 and positive push rod 32
Inside is equipped with spring, and the electromagnetism 31 tail ends 42 that the positive ratchet 4 is closed in casing 2 of putting away sports equipment are set, in spring
Under active force, electromagnetism put away sports equipment 31 can to positive ratchet 4 the stretching motion of tail end 42.The positive push rod 32 closes in casing 2
The end of engagement 41 of the positive ratchet 4 is set, under the force of a spring, positive push rod 32 can to positive ratchet 4 end of engagement
41 stretching motions.
Refer to cross-sectional view when Fig. 3 starts to walk for the pawl-type overrunning clutch low speed that the utility model is provided.
The electromagnetism puts away sports equipment 31 in the interior stretching motion of tail end 42 relative to positive ratchet 4 of casing 2, and positive push rod 32 is in casing 2
Relative to the stretching motion of end of engagement 41 of positive ratchet 4, thus realize the end of engagement 41 of positive ratchet 4 in the first bonding station and
Moved between first disengaged position.In the first bonding station, the end of engagement 41 of the positive ratchet 4 and the left side 11 of ratchet
Engagement, so as to limit the rotate counterclockwise of gear ring 1.
Referring to Fig. 1, the counter members group 6 includes electromagnetism push rod 61 and reverse push rod 62, the electromagnetism push rod
61 and reverse push rod 62 inside be equipped with spring, the reverse push rod 62 closes on the tail end 52 of the reverse ratchet 5 in casing 2
Set, under the force of a spring, reverse push rod 62 in casing 2 can to the reverse ratchet 5 the stretching motion of tail end 52.Institute
State electromagnetism push rod 61 end of engagement 51 of the reverse ratchet 5 is closed in casing 2 and set, under the force of a spring, reverse push
Bar 62 in casing 2 can to reverse ratchet 5 the stretching motion of end of engagement 51.
Refer to cross-sectional view when Fig. 5 brakes for the pawl-type overrunning clutch that the utility model is provided.It is described
Electromagnetism push rod 61 be power source, its relative to reverse ratchet 5 the stretching motion of end of engagement 51, and reversely push rod 62 relative to reverse
The stretching motion of tail end 52 of ratchet 5, it is achieved thereby that the end of engagement 51 of the reverse ratchet 5 is de- in the second bonding station and second
Moved between open position.In the second bonding station, the end of engagement of the reverse ratchet 5 is engaged with the right side 12 of ratchet, from
And limit gear ring 1 and turn clockwise.
In the present embodiment, the quantity of the ratchet is 12.
Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the work of pawl-type overrunning clutch 100 that the utility model is provided please are referred to successively
The method and step for making principle is followed successively by：
The electromagnetism put away sports equipment 31 and electromagnetism push rod 61 be off-position, the meshing arm 41 of the positive ratchet 4 is in the
One disengaged position, the meshing arm 51 of the reverse ratchet 5 is in the second disengaged position, i.e., described positive ratchet 4 and reverse ratchet 5
Completely disengaged from gear ring 1, the pawl-type overrunning clutch 100 is stop state.
When the pawl-type overrunning clutch 100 need low speed starting operating when, the electromagnetism put away sports equipment 31 energizations retraction, its
The power applied to the tail end 41 of positive ratchet 4 is zero, at this moment, positive push rod 32 work under the active force of its own spring
Make, promote the meshing arm 41 of positive ratchet 4 to move down, engaged with gear ring 1, the meshing arm 41 of positive ratchet 4 is in the first engagement position
Put, the meshing arm 41 of positive ratchet 4 is engaged with the left side 11 of ratchet.
The sun gear 8 is rotated clockwise, the planetary gear 9 drives gear ring 1 to invert, and at this moment positive ratchet 4
Meshing arm 41 jam gear ring 1 is inverted, so as to reach that planet carrier 10 slows down output.
When speed is than reaching certain value, the electromagnetism is put away sports equipment 31 power-off, is pushed out under the active force of itself spring, to just
Apply a thrust to the tail end 41 of ratchet 4, thrust of the thrust more than the positive spring of push rod 32 now be pressed downward tail
When holding 42, the opposite direction of end of engagement 41 is moved and promotes the positive push rod 32 to bounce back in casing 2.At this moment, positive ratchet 4 is nibbled
Close end 41 and return to the first disengaged position, planet carrier 9 is engaged with input shaft 7, and sun gear 8 stops operating, planet carrier 9 is clockwise
Rotation, planetary gear 9 drives gear ring 1 to rotate forward, and has now reached speedy carding process.And positive ratchet 4 is made in put away sports equipment 31 spring of electromagnetism
By clamping lock under firmly, positive ratchet 4 is set to completely disengage from the contact with gear ring 1, gear ring 1 rotates at a high speed with planet carrier 10, do not produced
Raw collision noise.
When stopping need to be braked, output power is rotated counterclockwise, the electromagnetism push rod 61 is powered, and promotes the reverse spine
The end of engagement 51 of pawl 5 is acted, and the end of engagement 51 of the reverse ratchet 5 is in the second bonding station, the right side with the ratchet
12 engagements, meanwhile, the opposite direction of tail end 52 motion of the reverse ratchet 5 promotes reverse push rod 62 to bounce back in casing 1, at this moment,
The counterclockwise rotates of sun gear 8, planet carrier 9 is rotated clockwise, but to receive gear ring 1 clockwise for planet carrier 9
Jam, is caused planet carrier 9 to slow down counterclockwise and exports power, slowed down with the speed for realizing rotation at a high speed.
Under speed is slow, when being exported without another mistake hour hands, the power-off of electromagnetism push rod 61 retraction, it acts on reverse ratchet
The thrust of 5 end of engagement 51 is zero, in the presence of reverse itself spring of push rod 62, to reverse ratchet 5 tail end 52 1 to
Under thrust, the opposite direction of end of engagement 51 motion, return to the second disengaged position.
At this moment pawl-type overrunning clutch 100 is stalled.
It should be noted that the electromagnetism put away sports equipment 31 and electromagnetism push rod 61 power source can also use hydraulic pressure or air pressure,
Belong to the utility model protection domain.
Input shaft 7 of the present utility model, sun gear 8, planetary gear 9 and the respective architectural feature of planet carrier 10, between connect
Relation and operation principle are prior art, and those skilled in the art can realize, so in the technical solution of the utility model
No longer emphasis is described.
Compared with correlation technique, the pawl-type overrunning clutch that the utility model is provided has the advantages that：
First, electromagnetism put away sports equipment, the structure design of positive push rod, electromagnetism push rod and reverse push rod, can shrink automatically, ratchet shrinks
Simultaneously energy self-locking afterwards, makes gear ring when high speed rotates, contactless with ratchet, it is to avoid the noise of contact generation；
2nd, the structure setting of reverse ratchet is added, can be achieved that gear ring is carried out to lock to braking clockwise, it is effective to solve
The problem of unidirectional steering.
Embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, it is every
The equivalent structure or equivalent flow conversion made using the utility model specification and accompanying drawing content, or be directly or indirectly used in
Other related technical fields, are similarly included in scope of patent protection of the present utility model.
Claims (7)
1. a kind of pawl-type overrunning clutch, including casing, input shaft, the input shaft it is axially arranged and it is intermeshing too
Sun wheel, planetary gear and gear ring, the planetary gear are fixed with a planet carrier, and the gear ring is internal tooth with the planetary gear field of conjugate action, on the contrary
For ratchet, the casing is located at the radially outer of gear ring, it is characterised in that the pawl-type overrunning clutch also includes being located at machine
Positive ratchet, reverse ratchet in shell, the forward direction for moving positive ratchet between the first bonding station and the first disengaged position
Component groups and the counter members group for moving reverse ratchet between the second bonding station and the second disengaged position；The positive spine
Left side of the pawl in the first bonding station with the ratchet is engaged, the reverse ratchet in the second bonding station with the spine
The right side engagement of tooth.
2. pawl-type overrunning clutch according to claim 1, it is characterised in that the positive ratchet and reverse ratchet are equal
The end of engagement of ratchet engagement including gear ring, the tail end away from end of engagement and the ratchet being connected between end of engagement and tail end
Arm, the pawl arm is articulated in the gear ring, and the end of engagement is engaged or disengaged with gear ring.
3. pawl-type overrunning clutch according to claim 2, it is characterised in that the positive component groups are included in casing
The electromagnetism that the tail end stretching motion of the introversive positive ratchet is set is put away sports equipment and the end of engagement in casing to the positive ratchet
The positive push rod that stretching motion is set；The counter members group, which is included in stretch to the end of engagement of the reverse ratchet in casing, transports
The dynamic electromagnetism push rod set and the reverse push rod set in casing to the tail end stretching motion of the reverse ratchet.
4. pawl-type overrunning clutch according to claim 3, it is characterised in that the positive ratchet and reverse ratchet
Pawl arm is closed on the tail end and set.
5. the pawl-type overrunning clutch according to claim 3 or 4, it is characterised in that the electromagnetism is put away sports equipment, forward direction is pushed away
The spring of oriented ratchet extension is all provided with inside bar, electromagnetism push rod and reverse push rod.
6. pawl-type overrunning clutch according to claim 5, it is characterised in that pivot of the positive ratchet on gear ring
The RADIAL that RADIAL that contact to the gear ring center of circle is linked to be is linked to be with pivoting point of the reverse ratchet on gear ring to the gear ring center of circle it
Between angle be 45 °.
7. pawl-type overrunning clutch according to claim 5, it is characterised in that the quantity of the ratchet is 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621480156.5U CN206368929U (en) | 2016-12-30 | 2016-12-30 | Pawl-type overrunning clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621480156.5U CN206368929U (en) | 2016-12-30 | 2016-12-30 | Pawl-type overrunning clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206368929U true CN206368929U (en) | 2017-08-01 |
Family
ID=59390888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621480156.5U Expired - Fee Related CN206368929U (en) | 2016-12-30 | 2016-12-30 | Pawl-type overrunning clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206368929U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067822A (en) * | 2018-01-23 | 2019-07-30 | 麦格纳动力系有限公司 | One-way clutch assembly |
| CN111271392A (en) * | 2020-03-03 | 2020-06-12 | 吉林大学 | Pawl type bidirectional controllable overrunning clutch |
| CN111473064A (en) * | 2020-04-16 | 2020-07-31 | 西安金茂科技有限公司 | Planetary backstop |
| CN111750046A (en) * | 2019-03-28 | 2020-10-09 | 张朝选 | Controllable integrated overrunning speed reduction clutch |
-
2016
- 2016-12-30 CN CN201621480156.5U patent/CN206368929U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067822A (en) * | 2018-01-23 | 2019-07-30 | 麦格纳动力系有限公司 | One-way clutch assembly |
| CN111750046A (en) * | 2019-03-28 | 2020-10-09 | 张朝选 | Controllable integrated overrunning speed reduction clutch |
| CN111271392A (en) * | 2020-03-03 | 2020-06-12 | 吉林大学 | Pawl type bidirectional controllable overrunning clutch |
| CN111473064A (en) * | 2020-04-16 | 2020-07-31 | 西安金茂科技有限公司 | Planetary backstop |
| CN111473064B (en) * | 2020-04-16 | 2021-08-13 | 西安金茂科技有限公司 | Planetary backstop |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170801 Termination date: 20191230 |