Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of electric commutator, it is possible to realize between stationary parts with moving component relative
The transmission of the signal of telecommunication that corner is bigger.
In order to solve above-mentioned technical problem, the present invention includes the cylinder for storing cable, the gyroaxis of described cylinder is fixed setting
Being equipped with the first storage drum, described first storage drum is provided with and the sleeve of gyroaxis matched in clearance near cylinder side, described sleeve
Two ends be fixedly installed the first ratchet and the second ratchet respectively, be additionally provided with the second storage drum between described second ratchet and cylinder,
Described second stores drum and gyroaxis matched in clearance and is fixed on bracing frame, and described first storage drum and the second storage drum are near spine
The end face of wheel is respectively arranged with the first ratchet and the second ratchet mated with ratchet, and described sleeve is provided with wheel bracket, described
The top of wheel bracket is provided with the guide wheel being rotated about axis, and the axis of described guide wheel is vertical with gyroaxis.
It is provided with friction plate between described wheel bracket and sleeve.
Described wheel bracket is located at turn around axle opposite side and is additionally provided with balancing weight.
Present invention achieves and rotate the electricity switching that cable is bigger with fixing cable relative rotation, and be contactless, continuous print
Detailed description of the invention
Embodiment cited by the present invention, is only intended to help and understands the present invention, should not be construed as the limit to scope
Fixed, for those skilled in the art, without departing from the inventive concept of the premise, it is also possible to the present invention
Making improvements and modifications, these improve and modification also falls in the range of the claims in the present invention protection.
As depicted in figs. 1 and 2, the present invention includes the cylinder 1 for storing cable, and the gyroaxis 2 of described cylinder 1 passes through axle
Holding 21 to fix on the base 11, described gyroaxis 2 is provided with the first storage drum 3, described first storage drum 3 is near cylinder 1
Side be provided with and the sleeve 4 of gyroaxis 2 matched in clearance, the two ends of described sleeve 4 are fixedly installed the first ratchet 51 respectively
With the second ratchet 52, between described second ratchet 52 and cylinder 1, be additionally provided with the second storage drum 6, described second storage drum 6 with
Gyroaxis 2 matched in clearance is also fixed on bracing frame 7, and this bracing frame 7 can be the shell of electric commutator.
Described first storage drum 3 and the second storage drum 6 are respectively arranged with, near the end face of ratchet, the first ratchet 81 mated with ratchet
With the second ratchet 82, when the first storage drum 3 rotates with gyroaxis 2, the first ratchet 81 on described first storage drum 3 pushes away
The dynamic first equidirectional rotation of ratchet 51, when the first storage drum 3 rotates with gyroaxis 2 reverse direction, on described second storage drum 6
The second ratchet 82 prop up the second ratchet 52.
It is provided with wheel bracket 9 on described sleeve 4, is provided with friction plate 10 between described wheel bracket 9 and sleeve 4, so
During pawl wheel, driving the equidirectional rotation of wheel bracket by frictional force, the size of described frictional force can be by being arranged on introduction
Spring screw 92 on support 9 regulates.The top of described wheel bracket is provided with the guide wheel 91 being rotated about axis, described
The axis of guide wheel 91 is vertical with gyroaxis 2.
In order to realize the wheel bracket 9 balance in rotation process, described wheel bracket 9 is located at turn around axle 2 opposite side and also sets up
There is balancing weight 93.
For the ease of being further appreciated by the present invention, operation principle and process to the present invention are described further below.
In terms of A-A direction from Fig. 1, when cylinder 1 rotates clockwise, the gyroaxis 2 of cylinder 1 drives the first storage drum 3
Also rotating clockwise, rotational angular velocity is identical, is set to ω.Now, under the effect of cable 12 tensile force, wheel bracket 9
Rotating with the first storage drum 3, this is that the cable 12 on the second storage drum 6 passes through guide wheel 91 around entering the first storage drum 31.
When cylinder 1 rotates counterclockwise with ω speed, the gyroaxis 2 of cylinder 1 drives the first storage drum 3 also with the ω speed inverse time
Pin rotates, and the first ratchet 81 being now fixed on the first storage drum 3 promotes the first ratchet 51 also to make counterclockwise movement.Due to
There is bigger frictional force between sleeve 4 and wheel bracket 9 between two ratchets, therefore also drive wheel bracket 9 to make counterclockwise
Rotate.At this moment the cable 12 that the first storage drum 3 eases out passes through guide wheel 91 around entering the second storage drum 6.