A kind of stepper motor preventing eccentric operating
Technical field
The present invention relates to a kind of stepper motor, in particular to a kind of stepper motor that can prevent eccentric operating.
Background technique
Stepper motor is also stepper, it utilizes electromagnetic principles, converts electrical energy into mechanical energy, people are early in 20 generation
Discipline the '20s are begun to using this motor.With embedded system such as printer, disc driver, toy, rain brush, shake
The use of the increased popularity of dynamic pager, mechanical arm and video recorder etc., stepper motor also starts to explode.No matter in industry, army
In thing, medical treatment, automobile or show business, as long as certain part object is needed to be moved to another position, stepping electricity from a position
Machine surely uses with regard to one.
Stepper motor has outstanding start-stop and reversion response;When stalling simultaneously there is maximum torque (to work as winding
When excitation);Therefore the use of stepper motor also constantly explodes, but stepper motor is not easy to produce altogether at that time in control at present
Vibration, while being difficult to run to higher revolving speed and obtaining biggish torque;The output shaft of stepper motor is in carrying constant weight
Since the work of stepper motor often needs to start and stop when carrier has driven rotation, biggish revolving speed can not be obtained, it is caused
Output shaft is to be difficult to keep balance in carrying object, and bias occurs for the carrier that output shaft causes it to carry in the course of rotation,
It is caused not operate preferably.
So the present invention provides one kind can prevent bias in order to enable the stepper motor in work preferably keeps balancing
The stepper motor of operating.
Summary of the invention
To solve the above-mentioned problems, the present invention provides the stepper motor that one kind can prevent eccentric operating, it can solve mesh
Preceding stepper motor was not easy to produce resonance in control at that time, while being difficult to run to higher revolving speed and obtaining biggish torque;
The output shaft of stepper motor is when the carrier for carrying constant weight has driven rotation since the work of stepper motor needs often
Want start and stop, biggish revolving speed can not be obtained, cause its output shaft carrying object be to be difficult to keep balance, output shaft is in rotation
The problem of bias occurs for the carrier for causing it to carry in the process, it is caused not operate preferably may be implemented to keep stepping electricity
Stable function is kept in machine motion process;With that can keep stablizing in stepper motor motion process, its resonance is reduced, simultaneously
Guarantee output shaft carry different weight object when its output shaft bias will not occur the advantages that.
To achieve the goals above, the present invention use following technical scheme, a kind of stepper motor preventing eccentric operating,
Including stepper motor main body, cover board and balancing device, the output shaft of the stepper motor main body is fixed by balancing device, is put down
Weighing apparatus device is mounted in the cover board of front end of stepper motor main body;The cover board is uniformly mounted on stepping by six hex bolts
On motor body;The output shaft middle section outer wall of the stepper motor main body is symmetrical above and below to be provided with fixing groove, is located in fixing groove
It is evenly arranged with fixation hole;Wherein:
The balancing device includes mounting ring, movable clamping mechanism and lock adjustment mechanism, the mounting ring installation
In the annular groove being arranged on the cover board;Six are uniformly arranged in the mounting ring mounting hole, and work is provided in mounting hole
Dynamic clamping mechanism, on the lock adjustment mechanism front end outer wall symmetrical above and below that mounting ring is set, and lock adjustment mechanism
It is mutually fixed with the output shaft of stepper motor main body.
The movable clamping mechanism includes level-one adjusting rod, one-stage gear, second level adjusting rod, secondary gear, driving spiral shell
The mounting hole being arranged in mounting ring is arranged in by bearing for bar, tertiary gear, fixed frame and compact heap, the level-one adjusting rod
It is interior, one-stage gear is installed, the one-stage gear and secondary gear are intermeshed, secondary gear installation in the middle part of level-one adjusting rod
In the middle part of second level adjusting rod, the second level adjusting rod both ends are mounted in the mounting hole being arranged in mounting ring by bearing, institute
The secondary gear and tertiary gear stated are intermeshed, and the tertiary gear is mounted on fixed frame, the fixed frame installation
In the inner wall of the hole installing being arranged inside mounting ring, driving screw rod, the compression are installed in the middle part of the tertiary gear
Block is connected through a screw thread mode and installs on the drive screw, and the both ends outer wall of compact heap is being pacified by sliding matching mode setting
It fills on ring;The movable clamping mechanism of setting adjusts the position of compact heap convenient for operation, and compact heap can be kept mutually to fix with cover board,
It is easy to operate, at the same be arranged multiple movable clamping mechanisms it is evenly distributed maintain its uniform force during rotation, avoid
It generates vibration because of discontinuity.
The lock adjustment mechanism includes position-limited rack, position limiting slide block, compressed spring, limited post and interior friction block;It is described
Position-limited rack upper end be evenly arranged with bolt hole, position limiting slide block, the limit are equipped with by sliding matching mode on position-limited rack
It is bolted in suitable bolt hole between position upper end of slide block and position-limited rack, the position limiting slide block lower end is semi-circular
Structure, the position limiting slide block middle part inner wall are provided with annular grooving, are equipped with interior friction by hinge in annular grooving
Block is bolted between the position limiting slide block in Liang Ge lock adjustment mechanism;Matched in the middle part of the position limiting slide block by sliding
Conjunction mode is provided with limited post, and limited post is connected with the inner wall in the middle part of position limiting slide block by compressed spring;The locking of setting
Regulating mechanism can be by adjusting position limiting slide block according to the different weight of carrying carrier of output shaft and the running speed of output shaft
Position, keep output shaft to be in a horizontal position always during output shaft operating, will not should be load-bearing and by bias,
It ensure that stepper motor bulk motion is stablized in the process, prevent its eccentric vibrating.
Preferably, the screw thread of opposite rotation direction is provided on the outer wall at the driving screw rod both ends;It sets on the drive screw
The screw thread for setting opposite rotation direction can keep control compact heap under same driving to work at the same time, while ensure that the feeding of compact heap is deep
Degree is consistent.
Preferably, outer wall is provided with mounting groove to the tertiary gear up and down, is located in mounting groove and ball is arranged;Installation
Setting ball can guarantee tertiary gear flexible rotating in slot.
Preferably, it is provided with annular groove on the cover board, the inner wall positioned at annular groove is evenly arranged with ball;Annular groove it is interior
Wall, which is uniformly arranged ball, ensure that balancing device keeps stablizing output shaft in the course of rotation, while not influence turning for output shaft
It is dynamic, reduce the load applied to it.
The beneficial effects of the present invention are:
One, the present invention, which has, can keep stepper motor bulk motion to stablize in the process, reduce its resonance, while guaranteeing defeated
Shaft carry different weight object when its output shaft bias will not occur the advantages that;
Two, the movable clamping mechanism that is arranged of the present invention adjusts the position of compact heap convenient for operation, can keep compact heap with
Cover board is mutually fixed, easy to operate, at the same be arranged multiple movable clamping mechanisms it is evenly distributed maintain its during rotation by
Power is uniform, avoids it and generates vibration because of discontinuity;
Three, the lock adjustment mechanism that is arranged of the present invention can be by according to the weight of the different carrying carrier of output shaft and defeated
The running speed of shaft adjusts the position of position limiting slide block, keeps output shaft to be in horizontal position always during output shaft operating
It sets, load-bearing will not be should be by bias, ensure that stepper motor bulk motion is stablized in the process, prevents its eccentric vibrating.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is general structure schematic diagram of the invention;
Fig. 2 is the structural schematic diagram after local location cutting of the present invention;
Fig. 3 is left view and its partial section enlarged view of the invention;
Fig. 4 is main view and its partial section enlarged view of the invention.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating, and the present invention is further explained.It should be noted that in the absence of conflict, embodiment in the application and
Feature in embodiment can be combined with each other.
As shown in Figures 1 to 4, a kind of stepper motor preventing eccentric operating, including stepper motor main body 1,2 and of cover board
The output shaft of balancing device 3, the stepper motor main body 1 is fixed by balancing device 3, and balancing device 3 is mounted on stepping electricity
In the cover board of front end 2 of owner's body 1;The cover board 2 is uniformly mounted in stepper motor main body 1 by six hex bolts;Institute
State stepper motor main body 1 output shaft middle section outer wall it is symmetrical above and below be provided with fixing groove, be evenly arranged in fixing groove solid
Determine hole;It is provided with annular groove on the cover board 2, the inner wall positioned at annular groove is evenly arranged with ball;The inner wall of annular groove is uniformly set
Setting ball ensure that balancing device 3 keeps stablizing output shaft in the course of rotation, while not influence the rotation of output shaft, reduce
The load that it is applied.
The balancing device 3 includes mounting ring 31, movable clamping mechanism 32 and lock adjustment mechanism 33, the installation
Ring 31 is mounted in the annular groove being arranged on cover board 2;Being uniformly arranged six in the mounting ring 31 has mounting hole, is located at mounting hole
Inside it is provided with movable clamping mechanism 32, the lock adjustment mechanism 33 front end outer wall symmetrical above and below that mounting ring 31 is set
On, and lock adjustment mechanism 33 and the output shaft of stepper motor main body 1 are mutually fixed.
The movable clamping mechanism 32 includes level-one adjusting rod 321, one-stage gear 322, second level adjusting rod 323, second level
Gear 324, driving screw rod 325, tertiary gear 326, fixed frame 327 and compact heap 328, the level-one adjusting rod 321 pass through
Bearing is arranged in the mounting hole being arranged in mounting ring 31, and one-stage gear 322 is equipped in the middle part of level-one adjusting rod 321, described
One-stage gear 322 and secondary gear 324 are intermeshed, and secondary gear 324 is mounted in the middle part of second level adjusting rod 323, and described two
323 both ends of grade adjusting rod are mounted in the mounting hole being arranged in mounting ring 31 by bearing, the secondary gear 324 and three-level
Gear 326 is intermeshed, and the tertiary gear 326 is mounted on fixed frame 327, and the fixed frame 327 is mounted on installation
In the inner wall of the hole installing being arranged inside ring 31, the middle part of the tertiary gear 326 is equipped with driving screw rod 325, the pressure
Tight block 328 is connected through a screw thread mode and is mounted on driving screw rod 325, and the both ends outer wall of compact heap 328 is by being slidably matched
Mode is arranged in mounting ring 31;It is mutually flexibly connected by screwing the control compact heap 328 of level-one adjusting rod 321 and 2 inside of cover board;
The movable clamping mechanism 32 of setting adjusts the position of compact heap 328 convenient for operation, and compact heap 328 can be kept solid with 2 phase of cover board
It is fixed, it is easy to operate, while multiple movable clamping mechanisms 32 for being arranged are evenly distributed maintains its uniform force during rotation,
It avoids it and generates vibration because of discontinuity;Opposite rotation direction is provided on the outer wall at 325 both ends of driving screw rod
Screw thread;The screw thread that opposite rotation direction is arranged on driving screw rod 325 can keep control compact heap 328 while work under same driving
Make, while ensure that the feeding depth of compact heap 328 is consistent;About 326 outer wall of tertiary gear is provided with mounting groove,
Ball is set in mounting groove;Setting ball can guarantee 326 flexible rotating of tertiary gear in mounting groove.
The lock adjustment mechanism 33 includes position-limited rack 331, position limiting slide block 332, compressed spring 333,334 and of limited post
Interior friction block 335;331 upper end of position-limited rack is evenly arranged with bolt hole, is pacified on position-limited rack 331 by sliding matching mode
Equipped with position limiting slide block 332, suitable bolt is bolted between 332 upper end of position limiting slide block and position-limited rack 331
In hole, 332 lower end of position limiting slide block is semicircular configuration, and the 332 middle part inner wall of position limiting slide block is provided with annular and cuts
Slot is equipped with interior friction block 335 by hinge in annular grooving, the position limiting slide block 332 in Liang Ge lock adjustment mechanism 33
Between be bolted;Limited post 334 is provided with by sliding matching mode in the middle part of the position limiting slide block 332, and is limited
Column 334 is connected with the inner wall at 332 middle part of position limiting slide block by compressed spring 333;According to the output bearing of stepper motor main body 1
The vehicle weight of load and the suitable bolt hole of its selection of speed are fixed by position limiting slide block 332;And limited post 334 is fixed on step
It is corresponding on into the output shaft of motor body 1 to have on fixation hole, then connected two upper and lower position limiting slide blocks 332 by bolt,
Bolt fixes interior friction block 335 and the output shaft locking of stepper motor main body 1 during screwing;The lock adjustment machine of setting
Structure 33 can be by adjusting position limiting slide block 332 according to the different weight of carrying carrier of output shaft and the running speed of output shaft
Position keeps output shaft to be in a horizontal position always, will not should be load-bearing by bias, protect during output shaft operating
It has demonstrate,proved in 1 motion process of stepper motor main body and has stablized, prevented its eccentric vibrating.
When work, in place by motor installation;Compact heap 328 and lid are controlled by screwing level-one adjusting rod 321
2 inside of plate is mutually flexibly connected;It is closed simultaneously according to the vehicle weight of the output shaft of stepper motor main body 1 carrying and its selection of speed
Suitable bolt hole is fixed by position limiting slide block 332;And limited post 334 is fixed on corresponding on the output shaft of stepper motor main body 1
Have on fixation hole, then connected two upper and lower position limiting slide blocks 332 by bolt, bolt screw during by interior friction block
335 fix with the output shaft locking of stepper motor main body 1;Finally opening stepper motor main body 1 makes its work.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and only illustrating for the description in above embodiments and description is of the invention
Principle, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these change and change
Into all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent
It defines.