CN203398893U - Energy-saving servo motor - Google Patents
Energy-saving servo motor Download PDFInfo
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- CN203398893U CN203398893U CN201320328650.XU CN201320328650U CN203398893U CN 203398893 U CN203398893 U CN 203398893U CN 201320328650 U CN201320328650 U CN 201320328650U CN 203398893 U CN203398893 U CN 203398893U
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- silicon steel
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Abstract
The utility model discloses an energy-saving servo motor, comprising a casing, a stator assembly and a rotor assembly. The rotor assembly comprises a motor shaft and a rotor core fixedly sleeved on the motor shaft; the rotor core is formed by lamination of several silicon steel plates; the rotor core is equipped with a plurality of magnetic steel blocks prepared from NdFeB material; the outer circumferential surface of the silicon steel plate at the middle of the rotor core is provided with T-shaped projections of the same number with the magnetic steel blocks, and the T-shaped projections are uniformly distributed along the circumference; the projections on the silicon steel plate are laminated together to form block grooves for the magnetic steel blocks to be embedded. Compared to the prior art, the rotor core of the rotor of the servo motor is provided with magnetic steel blocks prepared from NdFeB material, no excitation winding is required, the magnetic steel blocks have excellent magnetic properties such as high magnetic energy product and high coercive force, the material with high coercive force has a large air gap length, the energy-saving effect of the servo motor is raised by 20% when compared to the traditional ferrite motor and other motors, and the energy saving effect is good.
Description
Technical field
The utility model belongs to the technical field of motor, and specifically, the utility model relates to a kind of energy-saving servo motor.
Background technology
At present, what the motor of use on sewing machine was the most general, amount is maximum is clutch motor, because it has advantage cheaply, so the dominant position of clutch motor is difficult to be shaken by other motor always.Because the power of clutch motor is to transmit by the clutch of clutch, no matter whether in sewing, motor is all the time in running, thus the empty load of motor time often surpass the operating time, waste very large.On the other hand, because clutch motor is AC induction motor, and the delivery efficiency of AC induction motor self is lower, by friction clutch, transmits torque to sewing machine, and efficiency declines to a great extent, so the power output of whole system is very low, efficiency is very low.This motor, except high energy consumption, also has the shortcoming of high noisy, high vibration, high temperature rise.
It is electric motor that another kind is used more motor on sewing machine, electric motor control system has the high energy consumption drawback as clutch motor equally, electric motor system is after system energising, no matter whether need sewing, induction machine will maintain rated speed " at full speed " rotation always, the operational order that electric controller receives sewer is pedal order, and comes the engagement of solenoidoperated cluthes and the action of each electromagnet to complete needed sewing work according to the feedback of synchronizer.Although electric motor can be good at controlling, make effect, still do not solve the problem of waste electric energy.Because electric motor controller can not directly control induction machine the speed of service and start-stop, but realize start-stop and speed governing by solenoidoperated cluthes, and motor is the critical piece that consumes electric energy, motor moves in uncontrolled situation, no matter sewing machine work is in what operating mode, no matter at a high speed or low speed, the thick material of seam or thin material (while stitching thick material, sewing machine needs larger moment, and need less moment while stitching thin material), whether sewing machine work, motor is all in full speed running, because motor an innocent person has wasted many electric energy, so whole system efficiency is very low.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of energy-saving servo motor, to reach the object that reduces energy consumption.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of energy-saving servo motor, comprise casing, stator module and rotor assembly, rotor assembly comprises motor shaft and is fixed by socket the rotor core on motor shaft, rotor core consists of several pieces silicon steel plate stackings, rotor assembly is without excitation winding, the polylith magnet steel that adopts NdFeB material to make is installed on rotor core, on rotor core, the silicon steel sheet of middle part has the T-shaped projection identical with magnet steel number along the circumferential direction distributing on outer circumference surface, projection on silicon steel sheet overlaps together and forms the draw-in groove that allows magnet steel embed, two end faces of magnet steel are concordant with two end faces of rotor core.
Described magnet steel is provided with eight.
The silicon steel sheet of described rotor core is fixed into one by rivet.
Described stator module comprises stator core, excitation winding and the winding bracket of the hard that matches with the shape of stator core, stator core is provided with wire casing, the surface that envelopes wire casing in the wire casing of winding bracket insertion stator core, excitation winding is wrapped on winding bracket.
Described stator core consists of multi-disc silicon steel plate stacking, and all silicon steel sheets are integral by being welded to connect.
Described silicon steel sheet has 44.
The material of described winding bracket is plastics.
The utility model adopts technique scheme, compared with prior art, the rotor of this servomotor is provided with the magnet steel of NdFeB material on rotor core, without excitation winding, Nd-Fe-B magnet steel has superior magnetic property as high energy product and high-coercive force (particularly high HCJ), and the coercive force of material is high, and gas length can be got higher value, make this servomotor than the energy-saving effect of conventional iron oxysome motor and other type motors, improve 20%, good energy-conserving effect; In addition because the maximum magnetic energy product of Nd-Fe-B permanent magnet is very high, particularly can make extra-thin permanent magnet, thereby motor can be realized ultra micro and low inertia, save manufacture resource (mainly having saved the non-renewable resources such as metal material of copper, iron and steel and aluminium) on the one hand, greatly improved on the other hand user's operating efficiency.
Accompanying drawing explanation
Fig. 1 is the cutaway view of servomotor of the present utility model;
Fig. 2 is the structural representation of rotor assembly;
Fig. 3 is the end view of rotor assembly;
Fig. 4 is the structural representation of casing;
Fig. 5 is the structural representation of stator module;
Fig. 6 is the structural representation of stator core;
Fig. 7 is the structural representation of the first half portions of winding bracket;
Fig. 8 is the structural representation of the second half portions of winding bracket;
Fig. 9 is support bracket fastened structural representation;
Figure 10 is that fixed support is installed to the installation diagram on servomotor;
Mark in above-mentioned figure is: 1, casing; 11, front end housing; 12, rear end cap; 13, back cover;
2, stator module; 21, stator core; 22, winding bracket; 23, excitation winding; 24, protuberance; 25, solder bath; 26, grafting piece; 27, the first half portions; 28, the second half portions;
3, rotor assembly; 31, motor shaft; 32, rotor core; 33, magnet steel; 34, projection;
4, fixed support; 41, connecting plate; 42, pin; 43, clamping screw; 44, locking nut; 45, base plate; 46, adjusting rod; 47, adjusting nut.
Embodiment
Be illustrated in figure 1 a kind of energy-saving servo motor of the present utility model, comprise casing 1, stator module 2 and rotor assembly 3.As shown in Figures 2 and 3, rotor assembly 3 comprises motor shaft 31 and is fixed by socket the rotor core 32 on motor shaft 31, rotor core 32 consists of several pieces silicon steel plate stackings, rotor assembly 3 is without excitation winding, the polylith magnet steel 33 that adopts NdFeB material to make is installed on rotor core 32, magnet steel 33 is tile, the silicon steel sheet of rotor core 32Shang middle part has the T-shaped projection 34 identical with magnet steel 33 numbers along the circumferential direction distributing on outer circumference surface, and projection 34 radially outward stretches out along silicon steel sheet.Projection 34 on all silicon steel sheets of middle part overlaps together and forms the draw-in groove equating with magnet steel 33 numbers, and the shape of draw-in groove is identical with the shape of magnet steel 33, and magnet steel 33 embeds in draw-in groove fixing.When mounting magnetic steel 33, two end faces of magnet steel 33 will be guaranteed concordant with two end faces of rotor core 32, and the length of magnet steel 33 and rotor core 32 is equal in length.Because Nd-Fe-B magnet steel 33 has superior magnetic property as high energy product and high-coercive force (particularly high HCJ), the coercive force of material is high, gas length can be got higher value, make this servomotor than the energy-saving effect of conventional iron oxysome motor and other type motors, improve 20%, good energy-conserving effect; In addition because the maximum magnetic energy product of Nd-Fe-B magnet steel 33 is very high, particularly can make extra-thin permanent magnet, thereby motor can be realized ultra micro and low inertia, save manufacture resource (mainly having saved the non-renewable resources such as metal material of copper, iron and steel and aluminium) on the one hand, greatly improved on the other hand user's operating efficiency.
Because servomotor rotating speed is high, Nd-Fe-B magnet steel 33 is contained on rotor assembly 3, to guarantee the electrically connected reliability of stator.As shown in Figures 2 and 3, magnet steel 33 is evenly equipped with eight, and in adjacent two magnet steel 33, one of them is the N utmost point, and another one is the S utmost point, and adjacent magnet steel 33 polarity are contrary.The silicon steel sheet of rotor core 32, by punch forming, guarantees the symmetry of T-shaped projection 34 when punching press, thereby has guaranteed the symmetry of draw-in groove, and then guarantees the symmetry of magnetic circuit.On the silicon steel sheet of rotor core 32Zhi middle part, arrange on the silicon steel sheet at projection 34， two ends without projection 34, on the outer circumference surface of rotor core 32, between adjacent two magnet steel 33, can form the structure of a groove like this.Due to the Hall plate that will have in motor for the magnet steel 33 on inductiopn rotor assembly 3, the position of Hall plate and rotor core 32 be the silicon steel sheet aligned in position of one end wherein, but the critical point magnetic field between adjacent two blocks of magnet steel 33 is more random, silicon steel sheet or magnetic conduction, so rotor core 32 will not arrange projection 34 on the silicon steel sheet with Hall plate aligned in position, Hall plate just can not be subject to the interference of silicon steel sheet magnetic conduction like this.In addition, for fear of rotor assembly 3, aspect balance, be affected, so projection 34 is not set at the silicon steel sheet at rotor core 32 two ends, it is relatively good that rotor assembly 3 rotates balance like this.
The silicon steel sheet without projection 34 that rotor core 32 middle parts have 24Pian， two ends with the silicon steel sheet of projection 34 is respectively by 10, and silicon steel sheet amounts to 44, and every thickness is 0.5mm.As shown in Figure 2, all silicon steel sheets of rotor core 32 are fixed into one by four rivets.
In order to solve the oxidation resistant problem of permanent magnetic material, the surface of magnet steel 33 will form one deck zinc coat through zinc-plated processing.
As shown in Figure 4, stator module 2 comprises stator core 21, excitation winding 23 and the winding bracket 22 matching with the shape of stator core 21, and as shown in Figure 5, stator core 21 is provided with wire casing, part between adjacent two wire casings is the protuberance 24 of stator core 21, and protuberance 24 is T-shaped structure.Winding bracket 22 adopts rigid plastics to make, and plays the insulating effect that is similar to insulating paper, and it is radially divided into two half-unit, is respectively the first half portions 27 and the second half portions 28, as shown in Figure 7 and Figure 8.The first half portions 27 and the second half portions 28 are disc, comprise a disk and the circle grafting piece 26 along the circumferential direction arranging on disk, the shape of grafting piece 26 is identical with the shape of wire casing, the end towards disk center of grafting piece 26 is taper, and there is an opening, the end face of grafting piece 26 opening parts is step surface, and the piece 26 that makes to peg graft can insert in the wire casing of stator core 21 and the step surface by end is stuck on protuberance 24 and is fixed.The number of grafting piece 26 is identical with wire casing number, is provided with the through hole that allows enamelled wire pass through on grafting piece 26.The two half-unit of winding bracket 22 is inserted the wire casing that is arranged on stator core 21 from stator core 21 two ends by grafting piece 26 respectively and is enveloped the both ends of the surface of inner surface and the stator core 21 of wire casing, only exposes the inner peripheral surface of stator core 21.Excitation winding 23 is to be wrapped on winding bracket 22.Adopt this structure, motor stator component 2 is provided with at the wire casing place of stator core 21 winding bracket 22 that hard material is made, because winding bracket 22 can be fixed on stator core 21, can not move, excitation winding 23 can be wrapped on winding bracket 22 by machine, the consistency that can guarantee stator product is better, but also has improved the working (machining) efficiency of stator.
Being used for the Hall plate of the magnet steel 33 on inductiopn rotor assembly 3 is mounted on circuit board, circuit board is arranged on the position of close stator core 21 ends in motor, Hall plate equidistantly arranges three, Hall plate stretches on stator core 21 in the region between adjacent two protuberances 24, and the both sides of the end of certain adjacent two protuberance 24 cut one vertically therein, formation allows the groove of dodging that Hall plate stretches into, on two other protuberance 24 of these two protuberance 24 both sides, only a sidepiece endways cuts one vertically, match with two protuberances 24 of centre, groove is dodged in three of common formation.
As shown in Figure 5, stator core 21 consists of 44 silicon steel plate stackings, the thickness of every silicon steel sheet is 0.5mm, all silicon steel sheets are integral by being welded to connect, on the outer circumference surface of stator core 21, be provided with the solder bath 25 extending vertically, solder bath 25 is provided with six altogether along the circumferencial direction of stator core 21.The method that adopts welding, simple to operate, working (machining) efficiency is high, and silicon steel sheet connects reliable.
As shown in Figure 4, the material of the casing 1 of this servomotor is aluminium alloy, at the outer surface of casing 1, is provided with a plurality of radiating ribs, perfect heat-dissipating.The volume of this casing 1 is smaller, is specifically of a size of length 105.4mm, width 105.4mm, highly for 50mm, and diameter of bore is 49.7mm.Casing 1 be interference fit with stator core 21, stator core 21 be push in the casing 1 entering after heating expansion by hot jacket, after the cooling contraction of casing 1, stator core 21 is firmly fixed.
As shown in Figure 1, motor shaft 31 on the front end housing 11 and rear end cap 12 of casing 1 front-end and back-end, is also provided with back cover 13 by two bearings on rear end cap 12, and the motor shaft 31 end in back cover 13 is provided with flabellum, when motor shaft 31 rotates, can carry out cooling down to motor.The end that motor shaft 31 stretches out from front end housing 11 is provided with belt pulley.
As shown in figure 10, this servomotor is also provided with a fixed support 4 in casing 1 outside, and motor is installed on the platen of sewing machine by this fixed support 4.As shown in Figure 9, this fixed support 4 comprises pinch and the base plate 45 being connected with pinch, on pinch, there are two pins 42 for being connected with casing 1, on casing 1, be provided with two draw-in grooves that match with pin 42 that parallel, on two pins 42, be also provided with for the fixing retaining mechanism of pin 42 positions.After in the draw-in groove inserting on casing 1 at pin 42, can pin 42 position be fixed by retaining mechanism, then be installed on sewing machine by base plate 45, realize the fixed installation of servomotor on sewing machine.
As shown in Figure 9, pinch comprises that 41, two pins 42 of a connecting plate are rotationally connected at connecting plate 41 two ends and connecting plate 41 respectively, and pin 42 is arranged in rotating shaft.Retaining mechanism comprises clamping screw 43 and locking nut 44, and clamping screw 43, through the through hole arranging on two pins 42, is locked by locking nut 44.
As shown in Figure 9, connecting plate 41 on base plate 45 and pinch is for being rotationally connected, base plate 45 comprises a dull and stereotyped mount pad with for being connected with connecting plate 41 for being connected with sewing machine, and base plate 45 is fixed on the platen of sewing machine by three screws are installed on flat board.One of them pin 42 on mount pad and pinch is connected in same rotating shaft, and the diameter of this rotating shaft is larger.Between base plate 45 and pinch, be also provided with angle-adjusting mechanism, this angle-adjusting mechanism comprise the adjusting rod 46 that is rotationally connected with mount pad on base plate 45 and with two adjusting nuts 47 of adjusting rod 46 for being threaded, the surface of adjusting rod 46 is provided with external screw thread, adjusting rod 46 also passes from the rotating shaft of another pin 42, the diameter of this rotating shaft is less, adjusting nut 47 is positioned at the both sides of pin 42 rotating shafts on adjusting rod 46, when regulating, can be by adjusting adjusting nut 47 position, make to there is different angles between base plate 45 and pinch.By governor motion is set, make the position of servomotor adjustable, thereby can regulate the position of the belt pulley on servomotor, finally can reach the object of the elasticity that regulates belt.
By reference to the accompanying drawings the utility model is exemplarily described above; obviously the utility model specific implementation is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or without improving, design of the present utility model and technical scheme are directly applied to other occasion, all within protection range of the present utility model.
Claims (7)
1. an energy-saving servo motor, comprise casing, stator module and rotor assembly, rotor assembly comprises motor shaft and is fixed by socket the rotor core on motor shaft, rotor core consists of several pieces silicon steel plate stackings, it is characterized in that: described rotor assembly is without excitation winding, the polylith magnet steel that adopts NdFeB material to make is installed on described rotor core, on rotor core, the silicon steel sheet of middle part has the T-shaped projection identical with magnet steel number along the circumferential direction distributing on outer circumference surface, projection on silicon steel sheet overlaps together and forms the draw-in groove that allows magnet steel embed, two end faces of magnet steel are concordant with two end faces of rotor core.
2. energy-saving servo motor according to claim 1, is characterized in that: described magnet steel is provided with eight.
3. energy-saving servo motor according to claim 1 and 2, is characterized in that: the silicon steel sheet of described rotor core is fixed into one by rivet.
4. energy-saving servo motor according to claim 1, it is characterized in that: described stator module comprises stator core, excitation winding and the winding bracket of the hard that matches with the shape of stator core, stator core is provided with wire casing, the surface that envelopes wire casing in the wire casing of winding bracket insertion stator core, excitation winding is wrapped on winding bracket.
5. energy-saving servo motor according to claim 4, is characterized in that: described stator core consists of multi-disc silicon steel plate stacking, and all silicon steel sheets are integral by being welded to connect.
6. energy-saving servo motor according to claim 5, is characterized in that: described silicon steel sheet has 44.
7. according to the energy-saving servo motor described in claim 4 or 5 or 6, it is characterized in that: the material of described winding bracket is plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320328650.XU CN203398893U (en) | 2013-06-07 | 2013-06-07 | Energy-saving servo motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320328650.XU CN203398893U (en) | 2013-06-07 | 2013-06-07 | Energy-saving servo motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203398893U true CN203398893U (en) | 2014-01-15 |
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ID=49910391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320328650.XU Expired - Fee Related CN203398893U (en) | 2013-06-07 | 2013-06-07 | Energy-saving servo motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203398893U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103312068A (en) * | 2013-06-07 | 2013-09-18 | 芜湖微特电机有限公司 | Energy-saving servo motor |
| CN104527400A (en) * | 2015-01-08 | 2015-04-22 | 江西东江机电有限公司 | Hybrid power device and electric car |
-
2013
- 2013-06-07 CN CN201320328650.XU patent/CN203398893U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103312068A (en) * | 2013-06-07 | 2013-09-18 | 芜湖微特电机有限公司 | Energy-saving servo motor |
| CN103312068B (en) * | 2013-06-07 | 2016-03-23 | 芜湖微特电机有限公司 | A kind of energy-saving servo motor |
| CN104527400A (en) * | 2015-01-08 | 2015-04-22 | 江西东江机电有限公司 | Hybrid power device and electric car |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20140607 |