The transmission device of adjustable driving torque
Technical field
The present invention relates to a kind of transmission devices of adjustable driving torque.
Background technique
The power mechanism of hydrogenerator is connect with operating mechanism, for driving operating mechanism to rotate, current engine
The connection of structure and operating mechanism makes power mechanism and operating mechanism in any situation using rigid connection, such connection type
Under cannot relatively rotate, can preferably realize power mechanism driving operating mechanism rotation.And in some cases, such as water
When the operating mechanism of turbine generator is stuck, power is provided to operating mechanism as power mechanism is still lasting, then is easy to make
It is impaired at operating mechanism, it is also well known that the workpiece of hydrogenerator is the component of higher cost in hydrogenerator
One of, such as often replacement or maintenance is not only at high cost, but also reduces the generating efficiency of hydrogenerator.
Summary of the invention
The object of the present invention is to provide a kind of transmission devices of adjustable driving torque, solve hydraulic generator in the prior art
Impaired technological deficiency is easy when machine operating mechanism is stuck.
To solve the above problems, the technical solution used in the present invention is: a kind of transmission device of adjustable driving torque,
Including neck bush, external bushing, the first extrusion ring, the second extrusion ring and pull rod, the neck bush include two sections be less than
The neck bush unit of semi-circular shape, the external bushing include two sections be less than semi-circular shape external bushing unit, it is described
The first extrusion ring and the second extrusion ring be arranged along the axial direction of neck bush, the pull rod connects the first extrusion ring and second and squeezes
Pressure ring is moved for adjusting the first extrusion ring and the second extrusion ring towards opposite direction, the outer surface of two neck bush units
It is bonded with the inner surface of the first extrusion ring and the second extrusion ring and there are gap at the both ends of two neck bush units, it is described
Neck bush unit with the relative motion of the first extrusion ring and the second extrusion ring and deformation occurs in the axial direction, two are outer
The inner surface of bushing unit be bonded with the outer surface of the first extrusion ring and the second extrusion ring and two external bushing units two
End is there are gap, and the external bushing unit is with the relative motion of the first extrusion ring and the second extrusion ring and in the axial direction
It is upper that deformation occurs.Neck bush in the present invention and external bushing are by opposite dynamic of the first extrusion ring and the second extrusion ring and radially
Direction deformation when external bushing radially deforms outwardly, is close to the power mechanism being set on external bushing, neck bush is radially
When deforming inwardly, operating mechanism is clamped, realizes the connection of power mechanism and operating mechanism, power mechanism passes torque to work
Mechanism, and when operating mechanism, which is stuck, to be turned, neck bush and external bushing can turn with respect to the first extrusion ring and the second extrusion ring
Dynamic, operating mechanism can keep not rotating, and thus operating mechanism be protected not to be damaged, and can extend operating mechanism uses the longevity
Life, for the present invention when operating mechanism is blocked, the foreign matter that only need to exclude to block operating mechanism can restore the work of hydrogenerator,
The power generation operation of hydrogenerator will not be seriously affected.
As a further improvement of the present invention, first extrusion ring is identical as the structure of the second extrusion ring, described
First extrusion ring is isosceles trapezoid along axial section, and first extrusion ring squeezes the lesser one end phase of ring width with second
To setting and between the two there are gap, the outer surface of the neck bush unit is provided with to be squeezed with the first extrusion ring and second
The first ramp and the first lower inclined plane that pressure ring inner surface matches, the inner surface of the external bushing unit are provided with and first
The second ramp and the second lower inclined plane that extrusion ring and the second extruding ring outer surface match.The first extrusion ring in the present invention and
The gap of second extruding interannular can ensure that the first extrusion ring can be moved towards with the second extrusion ring, due to the first extrusion ring, second
It is respectively provided with inclined-plane on extrusion ring, neck bush and external bushing, therefore to move toward one another phase internal for the first extrusion ring and the second extrusion ring
Bushing and external bushing are slided along inclined-plane, squeeze neck bush and external bushing in radial directions.
As a further improvement of the present invention, connected between first ramp and the first lower inclined plane by the first joint face
It connects, is connected between second ramp and the second lower inclined plane by the second joint face.Be arranged in the present invention the first joint face and
Second joint face increases neck bush and the distance between external bushing and connecting rod.
As a further improvement of the present invention, the pull rod is bolt, on first extrusion ring along the circumferential direction
It is provided with multiple and its centerline parallel through-hole, is along the circumferential direction provided on second extrusion ring multiple flat with its center line
Capable threaded hole, the quantity of the threaded hole and the quantity of through-hole are equal, after the screw portion of the bolt passes through through-hole
It protrudes into threaded hole and is connect with threaded hole screw thread, the head of the bolt and the end face of the first extrusion ring fit.In the present invention
It is connect using bolt with the second extrusion ring, since bolt is bonded with the head of the first extrusion ring, the two can not be in the axial direction
Relative motion, therefore bolt pulls the second extrusion ring to be allowed to move toward one another with the first extrusion ring.
As a further improvement of the present invention, the bolt is hexagon socket head cap screw.The present invention uses hexagon socket head cap screw side
To rotating bolt, it is conveniently adjusted the relative motion of the first extrusion ring and the second extrusion ring.
In conclusion the beneficial effects of the present invention are: the present invention can play connection power mechanism and work as connector
The effect of mechanism, while when operating mechanism is stuck, connector itself can relatively rotate, and can effectively avoid operating mechanism's quilt
Damage.
Detailed description of the invention
Fig. 1 is main view of the invention.
Fig. 2 is top view of the invention.
Fig. 3 is that the A-A of Fig. 2 is cutd open and shown view.
Fig. 4 is the partial enlarged view in Fig. 3 at B.
Fig. 5 is schematic perspective view of the invention.
Fig. 6 is stereogram exploded view of the present invention.
Fig. 7 is the schematic perspective view of another angle of the present invention.
Fig. 8 is the stereogram exploded view of another angle of the present invention.
Fig. 9 is use state diagram of the invention.
Wherein: 1, neck bush;2, external bushing;3, the first extrusion ring;4, the second extrusion ring;5, pull rod;6, neck bush unit;
7, external bushing unit;8, the first ramp;9, the first lower inclined plane;10, the second ramp;11, the second lower inclined plane;12, first connects
Junction;13, the second joint face;14, through-hole;15, threaded hole.
Specific embodiment
A specific embodiment of the invention is described further with reference to the accompanying drawing.
The transmission device of adjustable driving torque as shown in Figures 1 to 8, including neck bush 1, external bushing 2, first squeeze
Ring 3, the second extrusion ring 4 and pull rod 5, the neck bush 1 include that two sections are slightly less than semi-circular shape (i.e. corresponding to its section
Central angle be less than 180 degree) neck bush unit 6, the external bushing 2 include two sections be slightly less than semi-circular shape (i.e. its
Central angle corresponding to section is less than 180 degree) external bushing unit 7, the outer diameter of the neck bush unit 6 is less than external bushing list
The internal diameter of member 7, first extrusion ring 3 and the second extrusion ring 4 are arranged along the axial direction of neck bush 1, and the pull rod 5 connects
First extrusion ring 3 and the second extrusion ring 4 move simultaneously for adjusting the first extrusion ring 3 and the second extrusion ring 4 towards opposite direction
Fix the position of the first extrusion ring 3 and the second extrusion ring 4, the inner surface and two liners of the first extrusion ring 3 and the second extrusion ring 4
The outer surface of set unit 6 can fit and there are gap, the neck bush lists at the both ends of two neck bush units 6
Member 6 with the relative motion of the first extrusion ring 3 and the second extrusion ring 4 and deformation occurs in the axial direction, two external bushing lists
The inner surface of member 7 is bonded with the outer surface of the first extrusion ring 3 and the second extrusion ring 4 and the both ends of two external bushing units 7
There are gaps at place, and the external bushing unit 7 is with the relative motion of the first extrusion ring 3 and the second extrusion ring 4 and in axial direction
Deformation occurs on direction, as shown in figure 9, external bushing 2 is along diameter in the use of the present invention, power mechanism is set on external bushing 2
To deformation occurs outward, external bushing 2 is made to be close to power mechanism, adjust stiction between the two, realizes the present invention and power
The connection of mechanism, while deformation occurs outward for external bushing 2, radially deformation occurs inwardly for the neck bush 1, and
And fitted closely with operating mechanism, the stiction of neck bush 1 and operating mechanism is adjusted, realizes the company of the present invention with operating mechanism
It connects, is achieved in the connection of operating mechanism and power mechanism, when operating mechanism works normally, neck bush 1 and the first extrusion ring 3
It is less than maximum static friction force between the two with the power that the second extrusion ring 4 relatively rotates, the two does not have relative motion, with engine
Structure does not relatively rotate, and power mechanism can deliver torque to operating mechanism, and when operating mechanism is stuck, neck bush 1
The power relatively rotated between the first extrusion ring 3 and the second extrusion ring 4 is greater than maximum static friction force between the two, transmission mechanism,
Neck bush 1 and external bushing 2 relatively rotate, and operating mechanism can keep not rotating, and operating mechanism can be protected not to be damaged.
The first heretofore described extrusion ring 3 identical as the second extrusion ring 4 is cyclic structure, and described first squeezes
Ring 3 is isosceles trapezoid along axial section, and first extrusion ring 3 is set in opposite directions with the lesser one end of 4 width of the second extrusion ring
Set and between the two there are gap, the outer surface of the neck bush unit 6 be provided be respectively used to the first extrusion ring 3 and
The first ramp 8 and the first lower inclined plane 9 that second extrusion ring, 4 inner surface matches, first ramp 8 and first oblique
It is connected between face 9 by the first joint face 12, the first heretofore described ramp 8 and the second ramp 9 are to be slightly less than half
The inclined-plane of annular, and the gradient of the two is equal, and the 6 appearance radius surface of neck bush unit being consequently formed is first from one end to the other end
The first ramp 8 is formed to big gradual change to equal with the outer diameter of the first joint face 12 from small, then by 12 other end of the first joint face
It rises from forming the first lower inclined plane 9 to small gradual change greatly;The inner surface of the external bushing unit 7 be provided with the first extrusion ring 3 and
The second ramp 10 and the second lower inclined plane 11 that second extrusion ring, 4 outer surface matches, second ramp 10 and second
It is connected between lower inclined plane 11 by the second joint face 13.
Heretofore described pull rod 5 is bolt, be along the circumferential direction provided on first extrusion ring 3 it is multiple with wherein
The parallel through-hole 14 of heart line is along the circumferential direction provided on second extrusion ring 4 multiple with its centerline parallel threaded hole
15, the quantity of the threaded hole 15 is equal with the quantity of through-hole 14, and the screw portion of the bolt passes through through-hole 14 and extendes back
Enter and connect in threaded hole 15 with 15 screw thread of threaded hole, the head of the bolt and the end face of the first extrusion ring 3 fit.It is turning
When bolt, since bolt is threadedly coupled with the second extrusion ring 4, bolt pulls the second extrusion ring 4 to make the second extrusion ring 4 and the
One extrusion ring 3 moves towards or towards the direction movement being located remotely from each other, when the second extrusion ring 4 and the first extrusion ring 3 move in opposite directions
When dynamic, the radially outward dilatancy of external bushing 2 is squeezed the power mechanism being set on external bushing 2 by the outer surface of the two,
The inner surface of the second extrusion ring 4 and the first extrusion ring 3 adjusts neck bush 1 by neck bush 1 along radially-inwardly contraction distortion simultaneously
Power mechanism and operating mechanism are realized with the pressing force of operating mechanism so as to adjust the stiction of neck bush 1 and operating mechanism
The adjustment of driving torque.
It is currently preferred that the bolt is adopted as hexagon socket head cap screw, using the head of allen wrench insertion bolt
Can wrenching bolt rotate bolt, from face adjust the distance between the first extrusion ring 3 and the second extrusion ring 4, facilitate bolt
Rotation operation.
Not doing the part illustrated in above instructions is the prior art, or has both been able to achieve by the prior art.
And heretofore described specific implementation case is only preferable case study on implementation of the invention, and it is not for the purpose of limiting the invention
Practical range.Equivalent changes and modifications made by i.e. all contents according to scope of the present invention patent, all should be used as of the invention
Technology scope.