CN102412670A - Medium-frequency heating and shrinking equipment of servo motor stator and using method thereof - Google Patents
Medium-frequency heating and shrinking equipment of servo motor stator and using method thereof Download PDFInfo
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- CN102412670A CN102412670A CN2011102956637A CN201110295663A CN102412670A CN 102412670 A CN102412670 A CN 102412670A CN 2011102956637 A CN2011102956637 A CN 2011102956637A CN 201110295663 A CN201110295663 A CN 201110295663A CN 102412670 A CN102412670 A CN 102412670A
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Abstract
The invention discloses heating and shrinking equipment of a motor stator and a using method thereof. The principle of expansion with heat and contraction with cold is adopted, namely before installation, after a motor shell is heated at medium frequency, a middle hole is expanded; and after the motor stator is installed in the motor shell, the motor shell is cooled to be shrunk and positioned. The invention provides the medium-frequency heating and shrinking equipment of a servo motor stator and a using method thereof. The medium-frequency heating and shrinking equipment is simple in structure, time-saving and labor-saving in operation, low in energy consumption and high in production efficiency. The technical problems of complex process of installing the motor stator in the motor shell, easy damage of the motor stator and the motor shell, unguaranteed quality of the motor and the like in the prior art are solved. The medium-frequency heating and shrinking equipment comprises a platform, wherein a sensing coil is vertically arranged on the platform and is connected with a main power supply through a medium-frequency power supply controller; a heating cavity capable of accommodating the motor shell is arranged on the middle part of the sensing coil; a lifting device is arranged above the heating cavity; a fixture body used for clamping the motor stator is arranged on the lifting device; and a fan is arranged below the heating cavity.
Description
Technical field
The present invention relates to a kind of shrinking device capable of fast and method for using thereof of motor stator, relate in particular to the intermediate frequency shrinking device capable of fast and the method for using thereof of a kind of motor case quick heating, energy consumption is low, production efficiency is high servo motor stator.
Background technology
Need motor stator be installed in the motor case during servomotor assembling; And the two is coaxial interference fit, and existing assemble method generally is to adopt instrument such as wooden mallet that motor case is inserted on the motor stator by force, not only is prone to cause the damage of motor stator and motor case; And can't guarantee the two concentricity; Cause motor quality to guarantee, this kind assembly method labour intensity is big simultaneously, and efficient is low.
Chinese patent discloses a kind of motor stator and the special equipment of shell assembling and installation method (CN101944800A) of motor stator and shell of being used for; Include with the pressing plate of cylinder interlock, with pressing plate be the reducing module that is linked and with the feedblock of the coaxial setting of reducing module; Feedblock offers the projection of some confessions watt magnetic sheet folder clamping on the end face of reducing module; Leave arc space between each projection; This arc space is a watt magnetic sheet installing space, and feedblock is arranged with outward and takes off the material piece, this take off material offer on the piece with feedblock on the corresponding breach of arc space; Be provided with block between each breach, elastic guide spare lower end is provided with and compresses the driven unit that feedblock moves on axially.This device is through cylinder motor stator to be pressed in the motor case, though labour intensity reduces, production efficiency improves, complex structure, and have the damage that is prone to cause motor stator and motor case equally, can't guarantee technical problems such as motor quality.
Summary of the invention
The present invention utilizes principle of expanding with heat and contracting with cold; Before installing mesopore after the motor case heating in medium frequency is become big; Insert motor stator rear motor casing cooling retraction location; A kind of intermediate frequency shrinking device capable of fast and method for using thereof of simple in structure, operation is time saving and energy saving, energy consumption is low, production efficiency is high servo motor stator are provided; Process is complicated when having solved the motor stator that exists in the prior art and packing motor case into, and is prone to cause motor stator and motor case damage, can't guarantee the technical problem of motor quality etc.
Above-mentioned technical problem of the present invention mainly is able to solve through following technical proposals: a kind of intermediate frequency shrinking device capable of fast of servo motor stator; Comprise platform; On said platform, vertically be provided with induction coil; Said induction coil links to each other with main power source through the intermediate frequency power supply controller, is provided with the heating chamber that can hold motor case at the middle part of said induction coil, above said heating chamber, is provided with boom hoisting; On said boom hoisting, be provided with the clamp body that is used for the clamping motor stator, below said heating chamber, be provided with blower fan.Can the power frequency 50HZ alternating current of main power source be changed into the intermediate frequency power supply of 300Hz to 20K Hz through the intermediate frequency power supply controller,, become adjustable electric current of intermediate frequency to direct current again becoming direct current behind the three-phase main-frequency AC rectification; Supply with the intermediate frequency alternating current that flows through in the induction coil and in induction coil, produce the highdensity magnetic line of force, and the motor case of placing in the cutting induction coil, very big eddy current in motor case, produced; The free electron that eddy current makes motor case self have flow in the metallic object of resistance and produce heat after temperature raise, it is big that the internal diameter of motor case becomes, can insert motor stator in the motor case easily through boom hoisting and locate this moment; Through blower fan motor case is carried out the air blast cooling cooling more at last, motor case shrinks and can motor stator be fixedly clamped in motor case, and assembling process is simple; The motor case firing rate is fast during the eddy current heating; Be heated evenly, energy-conserving and environment-protective, production efficiency is high; Assembly quality is good; Whole assembling process motor case does not have rigidity with motor stator and contacts, and therefore can not cause any damage to the two, thereby guarantee the quality of motor.When motor case being heated through induction coil; Owing to have the gap between motor case and induction coil; The induction coil self-temperature is very low during work, so good work environment, and the heating-up temperature of motor case and time are may command through the frequency of regulating intermediate frequency power supply controller power big or small and electric current; Easy to use, temperature control precision is high.
As preferably, on said intermediate frequency power supply controller, be electrically connected with temperature sensor, said temperature sensor is fixed on the motor case in the induction coil.But go out the temperature rise situation of motor case through the temperature sensor detection at any time, carry out the assembling of electronics stator so that cut off the electricity supply during motor case temperature rise to suitable temperature.
As preferably, said clamp body comprises support bar and is fixed on the chassis and the pressing plate at support bar two ends, and said motor stator is clamped between chassis and the pressing plate, on said pressing plate, is provided with hook, and said hook is hooked on the lift head of boom hoisting.Through chassis and pressing plate being set respectively at the support bar two ends; Can motor stator be enclosed within on the support bar and through chassis and pressing plate it is fixedly clamped; Be hooked on the boom hoisting through the hook on the pressing plate again; Can the electronics stator be sent in the motor case together with clamp body through boom hoisting and assemble, simple in structure, cost is low.
As more preferably, said support bar is screwed on chassis and the pressing plate.The two ends of support bar are through being threaded on chassis and the pressing plate, and fixed form is simple, easy accessibility.
As preferably, on said platform, be provided with ventilation hole, said induction coil is with on the upper surface that is located in the corresponding platform of ventilation hole port, and said blower fan is located on the corresponding platform lower surface of the lower port of ventilation hole.Through on the corresponding platform of the lower port of induction coil, ventilation hole being set, the bottom of ventilation hole is provided with blower fan, and blower fan can directly blow the motor case in the induction coil, wind concentration, good cooling results through ventilation hole.
As more preferably, on the platform upper surface between said ventilation hole and the induction coil, be provided with spacing ring, said spacing ring is coaxial with induction coil, and said motor case is sleeved on the spacing ring and offsets with the outer ring surface of spacing ring.Through on the platform of the outside of the ventilation hole in induction coil spacing ring being set, can limit the position of motor case through spacing ring, make motor case be positioned at the center of induction coil, thereby make the motor case homogeneous heating, guarantee the assembling effect.
The method for using of the said device of a kind of claim 1 comprises the steps:
1) leading-out terminal with motor stator upwards is clamped on the clamp body, and has the clamp body of motor stator to be lifted on the lift head of boom hoisting clamping;
2) power taking machine casing is upwards inserted the outlet nose end of motor case in the induction coil, and the lower port of motor case is enclosed within on the spacing ring;
3) getting temperature sensor is fixed on the motor case;
4) start the intermediate frequency power supply controller, when the frequency meter on the intermediate frequency power supply controller shows 5KHz, start main power source, when the voltmeter on the intermediate frequency power supply controller showed 500V, the wattmeter reading on the manual adjustments intermediate frequency power supply controller was to 30KW;
5) when motor case is warming up to set point, close main power source and intermediate frequency power supply controller successively, the wattmeter on the intermediate frequency power supply controller makes zero, and takes out temperature sensor;
6) there is the clamp body of motor stator to put into motor case clamping in the step 1) behind the startup boom hoisting, and makes the leading-out terminal of motor stator aim at the wire hole on the motor case;
7) start blower fan, close blower fan after the motor case cooling;
8) start boom hoisting, split out clamp body behind the stator module in the taking-up induction coil;
9) wire hole of leading-out terminal lead-in wire on motor case of motor stator drawn.
Wherein step 1) and step 2) can exchange, step 3) to step 9) is in step 1) and step 2) carry out in proper order afterwards.
As preferably, remove the burr on motor stator and the motor case.Burr scratches motor case and influences the outward appearance and the serviceability of motor when preventing to assemble.
As preferably, the desired temperature in the step 5) is 150 ° to 350 °.Select the suitable heating temperature according to different motor casing material and thickness etc., be convenient to the installation of motor stator.
Therefore, the intermediate frequency shrinking device capable of fast and the method for using thereof of servo motor stator of the present invention have following advantage: through the motor case in the eddy current effect heat induced coil, internal diameter becomes big behind the motor case expanded by heating; This moment motor stator is packed into and locate behind the motor case, carry out wind cooling temperature lowering through blower fan again, motor case is clamped in motor stator in the motor case after shrinking; Need not other aid; Assembling process is simple, the environmental protection of eddy current heating and energy saving, and efficient is high; Speed is fast, helps guaranteeing the assembly quality and the efficient of motor.
Description of drawings:
Fig. 1 is the structural representation of the intermediate frequency shrinking device capable of fast of servo motor stator of the present invention;
Fig. 2 is the enlarged drawing that the clamp body of motor stator is housed among the present invention.
Embodiment:
Pass through embodiment below, and combine accompanying drawing, do further bright specifically technical scheme of the present invention.
Embodiment:
As shown in Figure 1, the intermediate frequency shrinking device capable of fast of servo motor stator of the present invention comprises the platform 1 of a horizontal positioned; On platform 1, vertically place an induction coil 2; Induction coil 2 links to each other with main power source through the intermediate frequency power supply controller 3 on the platform 1, is a columniform heating chamber 21 that can hold motor case 8 at the middle part of induction coil 2, has a ventilation hole 11 on the platform 1 in heating chamber 21; The edge of ventilation hole 11 is through spacing ring 9 of screw; Motor case 8 is sleeved on the spacing ring 9 and offsets with the outer ring surface of spacing ring 9, and spacing ring 9 is all coaxial with induction coil 2 with ventilation hole 11, passes through in the bottom port edge of ventilation hole 11 that screw is coaxial fixes a blower fan 6; The air outlet frontage and airiness hole 11 of blower fan 6; On platform 1, also have a boom hoisting 10, the lift head of boom hoisting 10 is positioned at the top of heating chamber 21, on the lift head of boom hoisting 10, colludes clamp body 5 that is used for clamping motor stator 4 of extension through drop hanger; As shown in Figure 2; Clamp body 5 comprises a columniform support bar 51, and the two ends of support bar 51 are respectively through the chassis 52 of the circle that is threaded and the pressing plate 53 of a circle, in hook 54 of lateral surface middle part welding of pressing plate 53; Hook 54 is hooked on the drop hanger on boom hoisting 10 lift heads; Motor stator 4 passes two ends, support bar 51 back and is clamped between chassis 52 and the pressing plate 53, and through the electric wire then temperature sensor 7 that is electrically connected, temperature sensor 7 is inserted on the interior motor case 8 of induction coil 2 on intermediate frequency power supply controller 3.
During use, at first check on motor stator 4 and the motor case 8 whether jagged, like jagged need with file with its equating; Select suitable clamp body 5 according to motor type again, the leading-out terminal of motor stator 4 is installed in clamp body 5 up, again motor case 8 is steadily put into induction coil 2; Motor case 8 is enclosed within on the spacing ring 9, and the outlet nose end that makes motor case 8 is inserted in the probe on the temperature sensor 7 on the motor case 8 upwards and towards the operator again; Press the button of intermediate frequency power supply controller 3, when the frequency readings dial plate on the intermediate frequency power supply controller 3 shows 5KHz, press the main power source start button again, when the voltage readings dial plate on the intermediate frequency power supply controller 3 shows 500V; To 30KW, when treating that motor case 8 is heated to 240 ℃, press the main power source stop button successively through hand push button regulatory work rate dial plate reading; Intermediate frequency power supply controller 3 buttons; Manual adjustments power dial plate reading to 0 again takes out temperature sensor 7, slings with boom hoisting 10 and steadily puts into the motor case 8 after the heating behind the clamp body 5 that motor stator 4 is housed; Chassis 52 bottom surfaces on the clamp body 5 are connected on spacing ring 9 upper surfaces; The leading-out terminal of adjustment motor stator 4 makes it aim at the appearance hole on motor case 8, opens blower fan 6 and upwards blows to motor case 8 about about four or five minutes, makes its quick cooling; Take out the stator module that assembles with boom hoisting 10 again; Unload the clamp body 5 on the stator module, motor stator 4 lead-out wires are drawn in the wire hole of motor case 8, at last the stator module that assembles is moved to next procedure.
Specific embodiment described herein only is that design of the present invention is illustrated.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (9)
1. the intermediate frequency shrinking device capable of fast of a servo motor stator; Comprise platform (1); It is characterized in that: on said platform (1), vertically be provided with induction coil (2); Said induction coil (2) links to each other with main power source through intermediate frequency power supply controller (3), is provided with the heating chamber (21) that can hold motor case (8) at the middle part of said induction coil (2), is provided with boom hoisting (10) in the top of said heating chamber (21); On said boom hoisting (10), be provided with the clamp body (5) that is used for clamping motor stator (4), be provided with blower fan (6) in the below of said heating chamber (21).
2. the intermediate frequency shrinking device capable of fast of servo motor stator according to claim 1; It is characterized in that: on said intermediate frequency power supply controller (3), be electrically connected with temperature sensor (7), said temperature sensor (7) is fixed on the motor case (8) in the induction coil (2).
3. the intermediate frequency shrinking device capable of fast of servo motor stator according to claim 1 and 2; It is characterized in that: said clamp body (5) comprises support bar (51) and is fixed on the chassis (52) and the pressing plate (53) at support bar (51) two ends; Said motor stator (4) is clamped between chassis (52) and the pressing plate (53); On said pressing plate (53), be provided with hook (54), said hook (54) is hooked on the lift head of boom hoisting (10).
4. the intermediate frequency shrinking device capable of fast of servo motor stator according to claim 3, it is characterized in that: said support bar (51) is screwed on chassis (52) and the pressing plate (53).
5. the intermediate frequency shrinking device capable of fast of servo motor stator according to claim 1 and 2; It is characterized in that: on said platform (1), be provided with ventilation hole (11); Said induction coil (2) is with on the upper surface that is located in the corresponding platform (1) of ventilation hole (11) port, and said blower fan (6) is located on corresponding platform (1) lower surface of the lower port of ventilation hole (11).
6. the intermediate frequency shrinking device capable of fast and the method for using thereof of servo motor stator according to claim 5; It is characterized in that: on platform (1) upper surface between said ventilation hole (11) and the induction coil (2), be provided with spacing ring (9); Said spacing ring (9) is coaxial with induction coil (2), and said motor case (8) is sleeved on that spacing ring (9) is gone up and offsets with the outer ring surface of spacing ring (9).
7. the method for using of the said device of claim 1 is characterized in that: comprise the steps:
1) leading-out terminal with motor stator (4) upwards is clamped on the clamp body (5), and has the clamp body (5) of motor stator (4) to be lifted on the lift head of boom hoisting (10) clamping;
2) power taking machine casing (8) is upwards inserted the outlet nose end of motor case (8) in the induction coil (2), and the lower port of motor case (8) is enclosed within on the spacing ring (9);
3) getting temperature sensor (7) is fixed on the motor case (8);
4) start intermediate frequency power supply controller (3);, the frequency meter on the intermediate frequency power supply controller (3) starts main power source when showing 5KHz; When the voltmeter on the intermediate frequency power supply controller (3) showed 500V, the wattmeter reading on the manual adjustments intermediate frequency power supply controller (3) was to 30KW;
5) when motor case (8) when being warming up to set point, close main power source and intermediate frequency power supply controller (3) successively, the wattmeter on the intermediate frequency power supply controller (3) makes zero, and takes out temperature sensor (7);
6) there is the clamp body (5) of motor stator (4) to put into motor case (8) clamping in the step 1) behind the startup boom hoisting (10), and makes the leading-out terminal of motor stator (4) aim at the wire hole on the motor case (8);
7) start blower fan (6), close blower fan (6) after motor case (8) cooling;
8) start boom hoisting (10), split out clamp body (5) behind the stator module in the taking-up induction coil (2);
9) wire hole of leading-out terminal lead-in wire on motor case (8) of motor stator (4) drawn;
Wherein step 1) and step 2) can exchange, step 3) to step 9) is in step 1) and step 2) carry out in proper order afterwards.
8. according to the method for using of the said device of claim 7, it is characterized in that: remove the burr on motor stator (4) and the motor case (8).
9. according to the method for using of claim 7 or 8 said devices, it is characterized in that: the desired temperature in the step 5) is 150 ° to 350 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201110295663 CN102412670B (en) | 2011-10-08 | 2011-10-08 | Medium-frequency heating and shrinking equipment of servo motor stator and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110295663 CN102412670B (en) | 2011-10-08 | 2011-10-08 | Medium-frequency heating and shrinking equipment of servo motor stator and using method thereof |
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| CN102412670A true CN102412670A (en) | 2012-04-11 |
| CN102412670B CN102412670B (en) | 2013-11-06 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102638144A (en) * | 2012-05-03 | 2012-08-15 | 无锡锡山安达防爆电气设备有限公司 | Shrinkage fit housing-entering assembly trolley for large-scale motor stator |
| CN105391252A (en) * | 2015-12-21 | 2016-03-09 | 南车株洲电机有限公司 | Unwinding technology and equipment for motor rotor |
| CN105871135A (en) * | 2016-06-26 | 2016-08-17 | 高玉琴 | Hot assembly tool for motor rotor |
| CN106026550A (en) * | 2016-06-26 | 2016-10-12 | 高玉琴 | Heating sleeve tool for motor rotor and controller for heating sleeve tool |
| CN108406226A (en) * | 2018-03-20 | 2018-08-17 | 哈尔滨电机厂有限责任公司 | Without the elongated spindle vertical hot cover process method of flange end |
| US11095195B2 (en) * | 2016-09-08 | 2021-08-17 | Protean Electric Limited | Method and arrangement for assembling an electric motor or generator |
| CN117424412A (en) * | 2023-12-18 | 2024-01-19 | 小米汽车科技有限公司 | Motor hot jacket equipment |
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| US20110225806A1 (en) * | 2008-09-12 | 2011-09-22 | Controlled Power Technologies, Ltd. | Apparatus and manufacturing process for an electrical machine |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102638144A (en) * | 2012-05-03 | 2012-08-15 | 无锡锡山安达防爆电气设备有限公司 | Shrinkage fit housing-entering assembly trolley for large-scale motor stator |
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| CN105391252B (en) * | 2015-12-21 | 2017-08-25 | 南车株洲电机有限公司 | Rotor moves back axle Processes and apparatus |
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| CN106026550A (en) * | 2016-06-26 | 2016-10-12 | 高玉琴 | Heating sleeve tool for motor rotor and controller for heating sleeve tool |
| CN106026550B (en) * | 2016-06-26 | 2018-03-20 | 高玉琴 | The heating jacket tooling of motor rotor |
| US11095195B2 (en) * | 2016-09-08 | 2021-08-17 | Protean Electric Limited | Method and arrangement for assembling an electric motor or generator |
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| CN117424412A (en) * | 2023-12-18 | 2024-01-19 | 小米汽车科技有限公司 | Motor hot jacket equipment |
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Effective date of registration: 20190226 Address after: Room 202, 2nd Floor, Block B, Building 11, No. 8 Courtyard, Liangshuihe Second Street, Beijing Economic and Technological Development Zone, 100000 Patentee after: FISH GREEN ENERGY TECHNOLOGY (BEIJING) CO., LTD. Address before: 315800 No. 55 Putuoshan Road, Beilun District, Ningbo City, Zhejiang Province Patentee before: Phase Motion Control Ningbo Ltd. |