CN104455083A - Friction safety clutch - Google Patents
Friction safety clutch Download PDFInfo
- Publication number
- CN104455083A CN104455083A CN201410704124.8A CN201410704124A CN104455083A CN 104455083 A CN104455083 A CN 104455083A CN 201410704124 A CN201410704124 A CN 201410704124A CN 104455083 A CN104455083 A CN 104455083A
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- CN
- China
- Prior art keywords
- friction
- transmission shaft
- groove
- clutch
- axle sleeve
- 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.)
- Pending
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- Mechanical Operated Clutches (AREA)
Abstract
The invention discloses a friction safety clutch which can be disengaged to protect a machine when the machine breaks down. The friction safety clutch comprises a transmission shaft and a shaft sleeve fixedly connected with the transmission shaft. A circle of clamping groove is formed in the outer circle of the shaft sleeve. A clutch body is arranged at the position, on one side of the shaft sleeve, of the transmission shaft in a freely sleeving mode. A shifting groove is formed in the outer circle of the other side of the clutch body. A shifting block is arranged in the shifting groove. The other side of the clutch body is an outwards convex circle. An annular groove is formed between the convex circle and the shifting groove. The shaft sleeve is sleeved with a friction disk and a friction plate freely. The friction disk and the friction plate are fixed. Two transmission claws are symmetrically hinged to the friction disk. One end of each transmission claw can be clamped into the clamping groove. The other end of each transmission claw is provided with a roller. The rollers can make contact with the surface of the convex circle or the groove. A large belt wheel is arranged at the position, on the other side of the shaft sleeve, of the transmission shaft in a freely sleeving mode. The wheel face of the large belt wheel and the friction plate are in a friction drive mode.
Description
Technical field
The present invention relates to a kind of clutch, be specifically related to a kind of friction safety clutch.
Background technique
Engine cylinder cover is the important component part of motor, is mainly used to closed cylinder upper, forms firing chamber, and as the support of camshaft and pitman arm shaft and air inlet-outlet pipe etc.In order to ensure the quality of cylinder cap, usually to carry out machining to cylinder lid surface, as passed through grinding-wheel grinder end face etc.During face grinding, emery wheel by transmission shaft drive rotate, control emery wheel conveniently grind action, to ensure to grind quality, usually clutch is set on the transmission shaft be connected with emery wheel.But the existing clutch for emery wheel transmission shaft, when a certain section failure of machine, cannot disconnect automatically, transmission shaft cannot stall automatically, easily makes machine breakdown.
Summary of the invention
The invention provides a kind of when machine breaks down, automatically can disconnect the friction safety clutch of protection machine.
This programme is as follows: friction safety clutch, the axle sleeve comprising transmission shaft and be fixedly installed with transmission shaft, the cylindrical of axle sleeve is provided with a circle draw-in groove, the side that transmission shaft is positioned at axle sleeve is set with clutch, the side cylindrical of clutch is provided with allocating slot, shifting block is provided with in allocating slot, the opposite side of clutch is the dome of evagination, it is annular recess between dome and allocating slot, axle sleeve is set with friction disk and friction plate, friction disk and friction plate are fixed, on friction disk, symmetry is hinged with two driving pawls, one end of driving pawl can snap in draw-in groove, the other end of driving pawl is provided with roller, roller can contact with dome or groove surfaces, the opposite side that transmission shaft is positioned at axle sleeve is set with large belt wheel, the wheel face of large belt wheel can with friction plate friction driving.
This programme working principle is as follows: when roller contacts with dome, driving pawl snaps in the draw-in groove of axle sleeve, because driving pawl is connected on friction disk, friction disk, by friction plate and large belt wheel friction driving, thus can drive axle sleeve to rotate together, and axle sleeve drives drive axis, clutch is stirred to the right by shifting block, roller is contacted with the groove of clutch, and driving pawl exits draw-in groove, cuts off the transmission of power.
The present invention, when breaking down in a certain position of machine, because transmission resisting moment has exceeded the friction torque between friction plate and large belt wheel, can make to skid between friction plate and large belt wheel, thus make the unpowered output of large belt wheel, can play the effect of protection machine.
Further, transmission shaft is fixed with stair-stepping first back-up ring by taper pin, the ladder cylindrical of the first back-up ring has been threaded adjusting nut, and the end face that transmission shaft is positioned at joint nut is provided with the second back-up ring, and end face and the large belt wheel of the second back-up ring offset.Second back-up ring has spacing effect to large belt wheel, and by adjusting nut, the positive pressure between adjustable large belt wheel and friction plate.
Further, during cut-off clutch, in order to realize automatically reseting of driving pawl, also comprise the Returnning spring that driving pawl can be made to exit draw-in groove, one end of Returnning spring is fixed on friction disk, and the other end is fixed on driving pawl.
Further, conveniently operate, also comprise boom, boom is fixed on shifting block by round head bolt, and boom is provided with handle.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Embodiment
Below by embodiment, the present invention is further detailed explanation:
Reference character in Figure of description comprises: shifting block 1, clutch 2, transmission shaft 3, boom 4, round head bolt 5, cheese head screw 6, roller 7, transmission grab 8, Returnning spring 9, large belt wheel 10, friction plate 11, branch head screw 12, axle bush 13, second back-up ring 14, taper pin 15, adjusting nut 16, friction disk 17, flat key 18, axle sleeve 19, first back-up ring 20.
As shown in Figure 1: transmission shaft 3 is fixedly installed axle sleeve 19 by flat key 18 and branch head screw 12, the cylindrical of axle sleeve 19 is provided with a circle draw-in groove, the side that transmission shaft 3 is positioned at axle sleeve 19 is set with clutch 2, the side cylindrical of clutch 2 is provided with allocating slot, shifting block 1 is provided with in allocating slot, boom 4 is fixed on shifting block by round head bolt 5 and cheese head screw 6, and boom is provided with handle (not shown).
The opposite side of clutch 2 is the dome of evagination, it is annular recess between dome and allocating slot, axle sleeve 19 is set with friction disk 17 and friction plate 11, friction disk and friction plate are fixed, on friction disk, symmetry is hinged with two driving pawls 8, and one end of Returnning spring 9 is fixed on friction disk, and the other end is fixed on driving pawl 8, Returnning spring 9 is extension spring, all the time driving pawl 8 is had to the power making driving pawl 8 exit draw-in groove.
One end of driving pawl 8 is provided with roller 7, roller 7 can contact with dome or groove surfaces, when roller 7 contacts with dome, the other end of driving pawl 8 snaps in draw-in groove, realize transmission, the opposite side that transmission shaft 3 is positioned at axle sleeve 19 is fixed with axle bush 13, the large belt wheel 10 of the outer empty set of axle bush 13, the wheel face of large belt wheel can with friction plate friction driving.
Transmission shaft 3 is fixed with stair-stepping first back-up ring 20 by taper pin, the ladder cylindrical of the first back-up ring 20 has been threaded adjusting nut 16, the end face that transmission shaft 3 is positioned at joint nut is provided with the end face of the second back-up ring 14, second back-up ring 14 and large belt wheel 10 offsets, and positions large belt wheel.
Above-described is only embodiments of the invention, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from structure of the present invention, some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.The protection domain that this application claims should be as the criterion with the content of its claim, and the embodiment in specification etc. record the content that may be used for explaining claim.
Claims (4)
1. friction safety clutch, it is characterized in that, the axle sleeve comprising transmission shaft and be fixedly installed with transmission shaft, the cylindrical of axle sleeve is provided with a circle draw-in groove, the side that transmission shaft is positioned at axle sleeve is set with clutch, the side cylindrical of clutch is provided with allocating slot, shifting block is provided with in allocating slot, the opposite side of clutch is the dome of evagination, it is annular recess between dome and allocating slot, axle sleeve is set with friction disk and friction plate, friction disk and friction plate are fixed, on friction disk, symmetry is hinged with two driving pawls, one end of driving pawl can snap in draw-in groove, the other end of driving pawl is provided with roller, roller can contact with dome or groove surfaces, the opposite side that transmission shaft is positioned at axle sleeve is set with large belt wheel, the wheel face of large belt wheel can with friction plate friction driving.
2. friction safety clutch according to claim 1, it is characterized in that, transmission shaft is fixed with stair-stepping first back-up ring by taper pin, the ladder cylindrical of the first back-up ring has been threaded adjusting nut, the end face that transmission shaft is positioned at joint nut is provided with the second back-up ring, and end face and the large belt wheel of the second back-up ring offset.
3. friction safety clutch according to claim 1, is characterized in that, also comprises the Returnning spring that driving pawl can be made to exit draw-in groove, and one end of Returnning spring is fixed on friction disk, and the other end is fixed on driving pawl.
4. friction safety clutch according to claim 1, is characterized in that, also comprises boom, and boom is fixed on shifting block by round head bolt, and boom is provided with handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410704124.8A CN104455083A (en) | 2014-11-30 | 2014-11-30 | Friction safety clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410704124.8A CN104455083A (en) | 2014-11-30 | 2014-11-30 | Friction safety clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104455083A true CN104455083A (en) | 2015-03-25 |
Family
ID=52901642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410704124.8A Pending CN104455083A (en) | 2014-11-30 | 2014-11-30 | Friction safety clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104455083A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925328A (en) * | 2019-12-12 | 2020-03-27 | 苏州市职业大学 | Safe friction clutch |
-
2014
- 2014-11-30 CN CN201410704124.8A patent/CN104455083A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925328A (en) * | 2019-12-12 | 2020-03-27 | 苏州市职业大学 | Safe friction clutch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |