CN1018469B - Flexibility steel band type over running clutch - Google Patents
Flexibility steel band type over running clutchInfo
- Publication number
- CN1018469B CN1018469B CN 91108957 CN91108957A CN1018469B CN 1018469 B CN1018469 B CN 1018469B CN 91108957 CN91108957 CN 91108957 CN 91108957 A CN91108957 A CN 91108957A CN 1018469 B CN1018469 B CN 1018469B
- Authority
- CN
- China
- Prior art keywords
- control key
- lapping plate
- inner core
- steel loop
- outer shroud
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 23
- 239000010959 steel Substances 0.000 title claims abstract description 23
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
Images
Landscapes
- Braking Arrangements (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
The present invention relates to a novel overrunning clutch which belongs to a basic component of mechanical drive. The key part of the clutch is a self-locking mechanism composed of a flexibility steel ring, an overlapping plate and a control key. When the present invention drives forwardly, an outer ring drives an inner core to rotate through the self-locking mechanism. When the present invention moves reversely, the steel ring and the inner core automatically separate so as to realize overrunning. The overrunning clutch has the characteristics of reliable forward locking, little reverse opening force, large drive capability, high durability and long service life.
Description
The present invention relates to novel free wheel device, belong to the mechanical transmission basic part.
In the existing overrun, form has two kinds of roller type and wedge block types preferably, utilization be the principle of inclined-plane wedging.The major defect of prior art has two: one, and roller and inner and outer rings surface contacts for line, and contact stress is very big during wedging, very easily causes concentrated wear down to can not self-locking; The 2nd, opening after the wedging needs certain opening force again.
The objective of the invention is shortcoming, substitute traditional overdrive clutch principle, promptly replace the line contact, use the flexible belt tribology principle and realize self-locking with the face contact with a kind of new overdrive clutch principle at prior art.Except that making surface contact stress reduces greatly, make the very little special effect of opening force in addition, to using advantageous particularly.Through evidence, except that transmission capacity can increase many times, the durable life-span almost can reach endless, and the situation that does not promptly have the working surface wear out failure occurs.Simultaneously, because opening force is minimum, is specially adapted to pulsating movement stepless speed change device and makes output mechanism usefulness.
Content of the present invention is that flexibility steel band type over running clutch is made up of outer shroud, inner core, flexible steel loop, lapping plate and control key.Flexible steel loop is an opening steel loop, and it and lapping plate and control key are formed a self-locking mechanism, and are installed between outer shroud and the inner core.One end and the lapping plate of flexible steel loop are fixedly connected, the other end is having the square hole of perforation with lapping plate relative position place, one end of control key inserts this square hole, the other end is placed in the dovetail groove of outer shroud, when outer shroud is made forward rotation, control key promotes lapping plate and flexible steel loop enters self-locking state, holds inner core tightly and the output of will moving.When outer shroud was made backward rotation, control key got loose flexible steel loop and can freely rotate on inner core, realizes surmounting.
Description of drawings:
Fig. 1 is a prior art.
Fig. 2 is one embodiment of the present of invention.
Fig. 3 is mechanism's assembling schematic representation of embodiment.
Below in conjunction with accompanying drawing, introduce particular content of the present invention in detail.Fig. 2 and Fig. 3 are specific embodiments of the present invention.Among the figure, the 1st, outer shroud, the 2nd, inner core, the 3rd, flexible steel loop, the 4th, lapping plate, the 5th, control key, the 6th, sheet spring, the 7th, S shape spring.The self-locking mechanism of being made up of flexible steel loop 3, lapping plate 4 and control key 5 is installed between outer shroud 1 and the inner core 2.Flexible steel loop 3 is an opening steel loop, and an end and lapping plate 4 are fixedly connected, and the other end and lapping plate relative position place have the square hole of perforation, and an end of control key 5 inserts this square hole, and the other end is placed in the dovetail groove of outer shroud 1.When outer shroud 1 was made as shown in Figure 2 forward rotation, control key 5 promotes lapping plates 4 and flexible steel loop 3 enters self-locking state, holds the inner core 2 and the output of will moving tightly, when outer shroud 1 backward rotation, control key 5 gets loose flexible steel loop 3, and can freely rotate on inner core 2, realizes surmounting.For improve forward and reverse motion time locking and sensitivity of opening and the idle running of eliminating forward and reverse switching, sheet spring 6 and S shape spring 7 have been installed.Sheet spring 6 is installed in control key upper end one side, works to eliminate the control key sideshake.S shape spring 7 is placed in the top of lapping plate 4, plays a part to improve sensitivity, also can reduce reverse idle running.
The present invention is simple in structure, and is easy to process, and outer shroud 1 can adopt cast iron or cast aluminium manufacturing, and inner core 2 is available general steel also, so cost is lower. The present invention also has following technique effect:
1. transmission capacity is big, increases 10 times than roller approximately.
2. oppositely opening force is little, need exert oneself hardly.
3. not having the wear out failure phenomenon from latching surface occurs.
4. switch steadily no impact noise.
5. simple in structure, easily manufactured, cost is lower.
Claims (2)
1, a kind of flexibility steel band type over running clutch, comprise outer shroud, inner core, it is characterized in that also comprising flexible steel loop, lapping plate and control key, described flexible steel loop, lapping plate and control key are formed a self-locking mechanism, be installed between outer shroud and the inner core, flexible steel loop is the opening steel loop, and an end and described lapping plate are fixedly connected, and the other end and lapping plate relative position have the square hole of perforation, one end of described control key inserts this square hole, and the other end is inserted in the dovetail groove of outer shroud.
2, free wheel device as claimed in claim 1 is characterized in that laying S type spring sheet on the top of described lapping plate, and one side is equipped with the sheet spring in described control key upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91108957 CN1018469B (en) | 1991-09-20 | 1991-09-20 | Flexibility steel band type over running clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91108957 CN1018469B (en) | 1991-09-20 | 1991-09-20 | Flexibility steel band type over running clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1058830A CN1058830A (en) | 1992-02-19 |
| CN1018469B true CN1018469B (en) | 1992-09-30 |
Family
ID=4909559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91108957 Expired CN1018469B (en) | 1991-09-20 | 1991-09-20 | Flexibility steel band type over running clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1018469B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1069121C (en) * | 1998-08-07 | 2001-08-01 | 清华大学 | Chain link type monoway and doubleway overrunning clutch |
| US7892124B2 (en) * | 2008-03-07 | 2011-02-22 | The Gates Corporation | Decoupling isolator |
| CN104533984B (en) * | 2015-01-12 | 2017-06-30 | 重庆工商大学 | The freewheel clutch of the Mathematical Modeling that rubbed based on ring expansion formula flexible body |
-
1991
- 1991-09-20 CN CN 91108957 patent/CN1018469B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1058830A (en) | 1992-02-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |