CN2729417Y - Heavy-load friction clutch - Google Patents
Heavy-load friction clutch Download PDFInfo
- Publication number
- CN2729417Y CN2729417Y CNU2004200686696U CN200420068669U CN2729417Y CN 2729417 Y CN2729417 Y CN 2729417Y CN U2004200686696 U CNU2004200686696 U CN U2004200686696U CN 200420068669 U CN200420068669 U CN 200420068669U CN 2729417 Y CN2729417 Y CN 2729417Y
- Authority
- CN
- China
- Prior art keywords
- clutch
- left half
- brake shoe
- pin
- bulge loop
- 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 - Lifetime
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D43/00—Automatic clutches
- F16D43/02—Automatic clutches actuated entirely mechanically
- F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
- F16D43/14—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
- F16D2043/145—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members the centrifugal masses being pivoting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D43/00—Automatic clutches
- F16D43/02—Automatic clutches actuated entirely mechanically
- F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
- F16D43/14—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
- F16D43/18—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members with friction clutching members
Landscapes
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Abstract
The utility model relates to a heavy load friction clutch which primarily solves the technical problems that the existing friction clutch adopts flat surface friction to deliver the moment of torque and delivers the moment of torque relatively smaller, and is difficult to realize to deliver big moment of torque and the volume of the existing friction clutch is relatively larger, etc. The essential technical proposal is that the left half clutch is provided with one more annular groove in the left half clutch and one more circular bulge loop in the left half clutch with the axis of the left half clutch as the central lines thereof. The right half clutch is provided with two or two more brake blocks in even distribution. The brake blocks are clearance fit and hinge-mounted to a pin. The pin is fixedly connected with the right half clutch. The other side of each brake block is correspondingly provided with a pin respectively. The other end of the spring connected with the pin is lashed with the pin on the corresponding brake block or the pin fixedly connected to the right half clutch. The outside of the brake block is provided with the brake block bulge loop and the brake block groove corresponding with the left half clutch and cooperating with the annular groove in the left half clutch and the circular bulge loop in the left half clutch. The utility model has characteristics of small volume, simple technology, easy production, cheap fabrication cost and big moment of torque. The utility model can be extensively used in machines and automobiles.
Description
Technical field
The utility model relates to a kind of centrifugal friction clutch of mechanical field.
Background technique
At present, existing centrifugal clutch can be divided into two kinds of open type and encloseds by its reason situation of closing when the state of rest; Open type is when reaching certain working speed, and driving and driven part is just separated.The normal centrifugal friction clutch that adopts in starting frequent machine, it is widely used in lathe and the vehicle.But,, be difficult to realize transmitting large torque, and volume is bigger so its transmitting torque is less relatively because above clutch all adopts the planar friction transmitting torque.
Summary of the invention
The purpose of this utility model provide a kind of volume little, be easy to make, heavily loaded friction clutch that transmitting torque is big.
The technological scheme that its technical problem that solves the utility model adopts is: it is made up of the right semi-clutch 8 that left half-clutch 2 on the secure fit suit driven shaft 1 and secure fit are sleeved on the driving shaft 9, it is characterized in that: left half-clutch 2 is provided with in the left half-clutch that the shaft axis with left half-clutch 2 more than 1 is a center line annular convex ring 5 in the annular groove 4 and left half-clutch; Even distribution is provided with the brake shoe 6 more than 2 or 2 on the right semi-clutch, brake shoe 6 survives and is hinged on movingly on the pin 7, pin 7 connects firmly with right semi-clutch 8, on the opposite side of each brake shoe 6 respectively correspondence be provided with pin 11, the pin 11 on the other end of the spring 10 that joins with pin 11 and the corresponding brake shoe 6 or be arranged on the pin 14 that connects firmly on the right semi-clutch and connect; Brake shoe 6 outsides are provided with and left half-clutch 2 corresponding and brake shoe bulge loop 3 and brake shoe grooves 12 that match with left half-clutch annular groove 4 and left half-clutch annular convex ring 5; Left half-clutch annular groove 4, left half-clutch annular convex ring 5, brake shoe bulge loop 3, brake shoe groove 12 are for being with tapering bulge loop or the tapering groove of taper angle θ, and taper angle θ spends less than 45 greater than 0 degree.The shape specification with brake shoe bulge loop 3 and brake shoe scrobicular ring 12 is identical respectively with left half-clutch bulge loop 5 for left half-clutch groove 4, both side surface at left half-clutch annular groove 4 or brake shoe bulge loop 3 installs the bigger friction plate of wear-resisting friction factor 13, and the inner and the bottom portion of groove of friction plate 13 are gapped.The tilt angle theta of the both sides conical surface of each groove or bulge loop is identical, and the optimized angle of taper angle is less than 7 degree greater than 2.5 degree.Its volume is little, technology simple, be easy to manufacturing, cheap, and transmitting torque is big; And because of being provided with the removable friction plate of making by high-abrasive material, so greatly improved the working life of clutch.It can be widely used in lathe and the vehicle.
Description of drawings
Fig. 1 is a vertical profile structural representation of the present utility model.
Fig. 2 is that the A-A of Fig. 1 is to the sectional structure schematic representation.
Fig. 3 is another embodiment's of Fig. 1 a structural representation.
Fig. 4 is another embodiment's of Fig. 1 a structural representation.
Fig. 5 is embodiment's 5 structural representations.
Fig. 6 is the force analysis figure of rubbing surface.
Among the figure: 1. driven shaft, 2. left half-clutch, 3. brake shoe bulge loop, 4. left half-clutch groove, 5. left half-clutch bulge loop, 6. brake shoe, 7. connect firmly pin on the left half-clutch, 8. right semi-clutch, 9. driving shaft, 10. spring, 11. the pin that is provided with on the brake shoe, 12. the brake shoe groove, 13. friction plates, the pin that connects firmly on 14. right semi-clutch.
Embodiment
Embodiment 1, it is by becoming the left half-clutch 2 on the secure fit suit driven shaft 1 to form with the right semi-clutch 8 that becomes secure fit to be sleeved on the driving shaft 9, and left half-clutch 2 is provided with in the left half-clutch that the shaft axis with left half-clutch 2 more than 1 is a center line annular convex ring 5 in the annular groove 4 and left half-clutch; Even distribution is provided with the brake shoe 6 more than 2 or 2 on the right semi-clutch, brake shoe 6 survives and is hinged on movingly on the pin 7, pin 7 connects firmly with right semi-clutch 8, on the other end of each brake shoe 6 respectively correspondence be provided with pin 11, the pin 11 on the other end of the spring 10 that joins with pin 11 and the corresponding brake shoe 6 or be arranged on the pin 14 that connects firmly on the right semi-clutch and connect; Brake shoe 6 outsides are provided with and left half-clutch 2 corresponding and brake shoe bulge loop 3 and brake shoe grooves 12 that match with left half-clutch annular groove 4 and left half-clutch annular convex ring 5; Left half-clutch annular groove 4, left half-clutch annular convex ring 5, brake shoe bulge loop 3, brake shoe groove 12 are for being with tapering bulge loop or the tapering groove of taper angle θ, and taper angle θ spends less than 45 greater than 0 degree.Figure 1 shows that clutch is in separated state; When driving shaft 9 rotates and reaches desired speed, the bulge loop 3 on the other end of brake shoe 6 relative hinging shafts will embed in the groove 4 of left half-clutch under action of centrifugal force automatically, and compress its bi-side, with this overall viewing range that produces.When the driving shaft rotating speed is slack-off when reaching certain rotating speed or stopping, brake shoe 6 will automatically return to separated state under the spring force effect of spring 10.Consult Fig. 1 to Fig. 6.
Embodiment 2, the shape specification with brake shoe bulge loop 3 and brake shoe scrobicular ring 12 is identical respectively with left half-clutch bulge loop 5 for left half-clutch groove 4, both side surface at left half-clutch annular groove 4 or brake shoe bulge loop 3 installs the bigger friction plate of wear-resisting friction factor 13, the inner of friction plate 13 and bottom portion of groove certain clearance, so that after friction plate 13 is worn a part, can stretch into again in the groove, bulge loop is contacted all the time with friction plate.Consult Fig. 1 to Fig. 6, all the other are with embodiment 1.
Embodiment 4, and 4 or 4 above brake shoes 6 are set on the right semi-clutch 8 of the present utility model.Consult Fig. 5, all the other are with above-mentioned embodiment.
Because of the friction groove is a circular arc, and brake shoe 6 can adopt even number to arrange, so the radial force Fr of left half-clutch 2 and brake shoe 6 friction grooves, bulge loop cancels out each other, and it is zero that the footpath of clutch is closed to power.Carry out mechanical analysis below: the frictional force F=fFn of each rubbing surface, F frictional force, f is a friction factor, Fn is the method surface pressure of rubbing surface, the centrifugal force that promptly every shoe brake piece produces.And Fn=Fa/sin θ.
When θ=2.5 °, Fn=Fa/sin θ=Fa/sin2.5 °=Fa/0.0436=22.9Fa.Therefore the frictional force F that produces of each rubbing surface is 22.9 times of the frictional force that produces of planar friction dish.
When θ=3.5 °, Fn=Fa/sin θ=Fa/sin3.5 °=Fa/0.061=16.9Fa.Therefore the frictional force F that produces of each rubbing surface is 16.9 times of the frictional force that produces of planar friction dish.
When θ=5 °, Fn=Fa/sin θ=Fa/sin5 °=Fa/0.087=11.494Fa.Therefore the frictional force F that produces of each rubbing surface is 11.494 times of the frictional force that produces of planar friction dish.
When θ=7 °, Fn=Fa/sin θ=Fa/sin7 °=Fa/0.12=8.33Fa.Therefore the frictional force F that produces of each rubbing surface is 8.33 times of the frictional force that produces of planar friction dish.
Because of the utility model has changed the principle of rotation of clutch, according to mechanical analysis, can make clutch do forr a short time, and transmit bigger moment of torsion; Left and right two halves clutch can use low-cost grey cast iron to make, thus escapable cost.
Claims (3)
1, a kind of heavily loaded friction clutch, it is made up of the right semi-clutch (8) that left half-clutch (2) on the secure fit suit driven shaft (1) and secure fit are sleeved on the driving shaft (9), it is characterized in that: the shaft axis with left half-clutch (2) that left half-clutch (2) is provided with more than 1 is the interior annular groove (4) of left half-clutch and the interior annular convex ring (5) of left half-clutch of center line; Even distribution is provided with the brake shoe (6) more than 2 or 2 on the right semi-clutch, brake shoe (6) survives and is hinged on movingly on the pin (7), pin (7) connects firmly with right semi-clutch (8), on the opposite side of each brake shoe (6) respectively correspondence be provided with pin (11), the pin (11) on the other end of the spring (10) that joins with pin (11) and the corresponding brake shoe (6) or be arranged on the pin (14) that connects firmly on the right semi-clutch and connect; Brake shoe (6) outside is provided with brake shoe bulge loop (3) and brake shoe groove (12) corresponding with left half-clutch (2) and that match with left half-clutch annular groove (4) and left half-clutch annular convex ring (5); Left half-clutch annular groove (4), left half-clutch annular convex ring (5), brake shoe bulge loop (3), brake shoe groove (12) are for being with tapering bulge loop or the tapering groove of taper angle θ, and taper angle θ spends less than 45 greater than 0 degree.
2, heavily loaded friction clutch according to claim 1, it is characterized in that: the shape specification with brake shoe bulge loop (3) and brake shoe scrobicular ring (12) is identical respectively with left half-clutch bulge loop (5) for left half-clutch groove (4), both side surface at left half-clutch annular groove (4) or brake shoe bulge loop (3) installs the bigger friction plate of wear-resisting friction factor (13), and the inner and the bottom portion of groove of friction plate (13) are gapped.
3, heavily loaded friction clutch according to claim 2 is characterized in that: the tilt angle theta of the both sides conical surface of each groove or bulge loop is identical, and taper angle is spent less than 7 greater than 2.5 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200686696U CN2729417Y (en) | 2004-09-13 | 2004-09-13 | Heavy-load friction clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200686696U CN2729417Y (en) | 2004-09-13 | 2004-09-13 | Heavy-load friction clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2729417Y true CN2729417Y (en) | 2005-09-28 |
Family
ID=35048194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200686696U Expired - Lifetime CN2729417Y (en) | 2004-09-13 | 2004-09-13 | Heavy-load friction clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2729417Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1295447C (en) * | 2004-09-09 | 2007-01-17 | 湘潭大学 | Heavy loaded centrifugal friction clutch |
| CN105620707A (en) * | 2015-12-30 | 2016-06-01 | 浙江海洋学院 | Shaft for ship |
-
2004
- 2004-09-13 CN CNU2004200686696U patent/CN2729417Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1295447C (en) * | 2004-09-09 | 2007-01-17 | 湘潭大学 | Heavy loaded centrifugal friction clutch |
| CN105620707A (en) * | 2015-12-30 | 2016-06-01 | 浙江海洋学院 | Shaft for ship |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20040913 |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20040913 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |