It is a kind of to reset ammeter meter counter for motor
Technical field
The invention belongs to ammeter technical fields, and in particular to a kind of to reset ammeter meter counter for motor.
Background technology
In order to realize the Electric energy meter KWh counter for counting character wheel and capableing of back to zero, and electricity is not influenced when this register counting character wheel back to zero
The precision of energy table.A kind of Electric energy meter KWh counter for counting character wheel and capableing of back to zero is now provides, this register counts character wheel
The precision of electric energy meter is not influenced when back to zero.The counting character wheel is capable of the Electric energy meter KWh counter of back to zero, including p-m step motor,
Register holder, and the counter unit that is made of character wheel, rounding wheel, reduction gearing, in a shaft of the stepper motor
Compartment of terrain fix two PM rotors and be arranged in rack two groups respectively stator corresponding with two PM rotors and
Coil, when described two corresponding stator and rotor work respectively, the rotation direction of rotor is on the contrary, be respectively used to meter degree and clearing;
Projection line of the magnetic pole in the same direction of two PM rotors in the plane vertical with machine shaft intersects and misaligned, intersection institute structure
At angle within the scope of 10-180 degree.
And for the ease of safeguarding and dismantling, a kind of existing improve is exactly that compartment of terrain in a shaft of stepper motor is consolidated
The structure of fixed two PM rotors is improved to:Interval is socketed with two permanent magnetism by the motor shaft of stepper motor by mandrel connector
The shaft of body rotor is tied, and PM rotor can be driven to rotate by stepper motor with this, however current axis connection
Device usually will appear the stress due to the rotary course of axis due to being coupled not firm meeting so that motor shaft or shaft are bent
The problem of stretching.
Invention content
Ammeter meter counter being reset for motor it is an object of the invention to provide a kind of, avoids the rotation of prior art axis
The stress of journey is turned over due to being coupled not firm meeting so that the defect bent and stretched occur in motor shaft or shaft.
A kind of ammeter meter counter of resetting for motor in order to overcome the deficiencies in the prior art, the present invention provides
Solution, it is specific as follows:
It is a kind of to reset ammeter meter counter, including p-m step motor for motor, register holder, and by character wheel, into
Interval is socketed with two forever by the counter unit that position wheel, reduction gearing are constituted, the motor shaft of stepper motor by connecting structure
The shaft of magnet rotor is tied and two groups of stator corresponding with two PM rotors and lines respectively is arranged in rack
Circle, when described two corresponding stator and rotor work respectively, the rotation direction of rotor is on the contrary, be respectively used to meter degree and clearing;Two
Projection line of the magnetic pole in the same direction of a PM rotor in the plane vertical with machine shaft intersects and misaligned, and intersection is constituted
Angle within the scope of 10-180 degree;
The motor shaft of the motor and the connecting structure for being socketed the shaft there are two PM rotor are:The motor shaft of the motor
The right head of A1 is the first flaring mouth A10 for being in flaring shape from left to right, and there are two the shaft A2 of PM rotor for the socket
Left head be right-to-left be in flaring shape the second flaring mouth A20, in the inner surface of the first flaring mouth A10, card is set
The inner surface for meeting ring A3, the second flaring mouth A20 is provided with the buckling groove A4 being clamped with the clamping ring A3 phases;First sleeve A7
Around being connected on the outer surface of the first flaring mouth A10, the floor projection of the first sleeve A10 is two concentric circles structures
At annular profile, which is internally positioned the first inner circle and is constituted positioned at the first external outer circle, and first
Inner circle is located in the region that the outer profile of the floor projection of the first flaring mouth A10 is enclosed;Second sleeve A8 is described around being connected to
On the outer surface of second flaring mouth A20, the floor projection of the second sleeve A8 is the annular profile that two concentric circles are constituted, should
Two concentric circles are constituted for the second internally positioned inner circle and positioned at the second external outer circle, and the second inner circle is located at the second flaring
In the region that the outer profile of the floor projection of mouth A20 is enclosed;Pass through rivet A9 between the first sleeve A7 and second sleeve A8
It mutually rivets, the first copper alloy ring A5 is also bonded on the outer surfaces the first flaring mouth A10, around the second flaring mouth
It is the clamping ring with ellipticity rubber ring A11 that the second copper alloy ring A6, the clamping ring A3 is also bonded on the outer surfaces A20,
The buckling groove A4 is the buckling groove with ellipticity rubber ring.
Under present invention stress caused by the rotary course of axis, due to being coupled firm meeting so that motor shaft or shaft
Intensity it is very big, prevent the phenomenon that bending and stretching.
Description of the drawings
Fig. 1 is that the motor shaft of the motor of the present invention is being detached with the connecting structure for being socketed the shaft there are two PM rotor
Under the conditions of plan view.
Fig. 2, Fig. 3 be the motor of the present invention motor shaft and socket there are two the connecting structures of shaft of PM rotor to exist
Plan view under join condition.
Specific implementation mode
Invention content is described further with reference to the accompanying drawings and examples:
Referring to Fig.1 shown in-Fig. 2, for the ammeter meter counter that resets of motor, including p-m step motor, register holder,
And the counter unit being made of character wheel, rounding wheel, reduction gearing, the motor shaft of stepper motor is by connecting structure spacer sleeve
Connect the shaft there are two PM rotor be tied and be arranged in rack two groups it is corresponding with two PM rotors respectively
Stator and coil, when described two corresponding stator and rotor work respectively, the rotation direction of rotor is on the contrary, be respectively used to count
Degree and clearing;Projection line of the magnetic pole in the same direction of two PM rotors in the plane vertical with machine shaft intersects without weight
It closes, the constituted angle of intersection is within the scope of 10-180 degree;
The motor shaft of the motor and the connecting structure for being socketed the shaft there are two PM rotor are:The motor shaft of the motor
The right head of A1 is the first flaring mouth A10 for being in flaring shape from left to right, and there are two the shaft A2 of PM rotor for the socket
Left head be right-to-left be in flaring shape the second flaring mouth A20, in the inner surface of the first flaring mouth A10, card is set
The inner surface for meeting ring A3, the second flaring mouth A20 is provided with the buckling groove A4 being clamped with the clamping ring A3 phases;First sleeve A7
Around being connected on the outer surface of the first flaring mouth A10, the floor projection of the first sleeve A10 is two concentric circles structures
At annular profile, which is internally positioned the first inner circle and is constituted positioned at the first external outer circle, and first
Inner circle is located in the region that the outer profile of the floor projection of the first flaring mouth A10 is enclosed;Second sleeve A8 is described around being connected to
On the outer surface of second flaring mouth A20, the floor projection of the second sleeve A8 is the annular profile that two concentric circles are constituted, should
Two concentric circles are constituted for the second internally positioned inner circle and positioned at the second external outer circle, and the second inner circle is located at the second flaring
In the region that the outer profile of the floor projection of mouth A20 is enclosed;Pass through rivet A9 between the first sleeve A7 and second sleeve A8
It mutually rivets, the first copper alloy ring A5 is also bonded on the outer surfaces the first flaring mouth A10, around the second flaring mouth
It is the clamping ring with ellipticity rubber ring A11 that the second copper alloy ring A6, the clamping ring A3 is also bonded on the outer surfaces A20,
The buckling groove A4 is the buckling groove with ellipticity rubber ring;By the motor shaft of the motor and socket, there are two permanent magnets
The connecting structure of the shaft of rotor, there are two the connections of the shaft of PM rotor can break away from now for the motor shaft of motor and socket
The complicated accessory of some mandrel connectors is coupled to realize, in conjunction with the first copper alloy ring A5 and the second copper alloy ring A6, even if in axis
Rotary course stress under will not be coupled illusive problem, also motor shaft or shaft would not be allowed to bend
The problem of stretching, the clamping ring and buckling groove being in addition mutually clamped, it is with ellipticity rubber ring A11 also to add the clamping ring A3
Clamping ring, the buckling groove A4 be the buckling groove with ellipticity rubber ring, thus can further improve the close of combination
The problem of degree is not in damage.
The shape of the first flaring mouth A10 is pyramidal.
The shape of the second flaring mouth A20 is pyramidal.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as be without departing from technical solution of the present invention content, according to the technical essence of the invention,
Within the spirit and principles in the present invention, to any simple modification, equivalent replacement and improvement etc. made by above example, still
Belong within the protection domain of technical solution of the present invention.