CN202586662U

CN202586662U - Novel expanding device

Info

Publication number: CN202586662U
Application number: CN 201220207779
Authority: CN
Inventors: 刘永健; 潘晋; 程润生
Original assignee: ANHUI WANNAN XINWEI ELECTRIC MACHINE Co
Current assignee: ANHUI WANNAN XINWEI ELECTRIC MACHINE Co
Priority date: 2012-05-10
Filing date: 2012-05-10
Publication date: 2012-12-05
Anticipated expiration: 2022-05-10

Abstract

The utility model discloses a novel expanding device. The novel expanding device comprises a central spindle (1). An expanding sleeve (4) is sleeved onto the outside of the central spindle (1). The portion of the central spindle (1) equipped with the expanding sleeve (4) is an expanding core (3). An outer wall of the expanding core (3) is a conical surface. An inner hole of the expanding sleeve (4) is matched with the outer wall of the expanding core (3). Radial grooves (41) are provided on the expanding sleeve (4). The expanding sleeve (4) tightly braces the internal diameter of a stator core through the extruding of the expanding core (3) along with the screwing of a compression nut (7), so that the processing technology of motor components is optimized, and the air gap uniformity between a stator and a rotor is improved.

Description

A kind of novel expander device

Technical field

The utility model relates to the part processing technique for fixing of motor in the mechanical field, relates in particular to a kind of novel expander device.

Background technology

At present, in electric manufacturing, the aluminum hull motor is because the density of the strong rapid heat dissipation of thermal conductivity of aluminium, aluminium is little in light weight and smooth in appearance is attractive in appearance.The aluminum hull motor more and more receives user's favorable comment in low-power machine.

Usually, in the technical indicator of motor, the vibration and noise be two important techniques indexs, wherein, vibrate low more, noise is more little, the effect up to standard of these two technical indicators is good more.And the inhomogeneous iron loss that increases motor greatly of the stator of motor and the air gap between the rotor has very big influence to vibration and noise simultaneously, and airgap uniformity degree is high more, and vibration and noise are low more; In order to improve the airgap uniformity degree between stator and the rotor, need to optimize the processing technology of motor component.

Conventional motors stator processing technology of components is: clamp support with three-jaw, processing support one end seam and endoporus turns around to tighten endoporus processing other end seam, again to form support earlier; With hydraulic press stator core is pressed into support again and forms stator.

But, the position rotating that the rotor of motor need be through support two ends seam, the aluminum hull motor is because support is an aluminum hull, wall thickness, yielding by above-mentioned conventional machining process processing, can shine into the support endoporus oval and with the seam decentraction.Simultaneously, the processing of support and stator core is relatively independent, can not guarantee axiality between motor stator core internal diameter and the support two ends seam, influences the stator of motor and the airgap uniformity degree between the rotor unavoidably, thereby influences the vibration and the noise of motor; Certainly, also can influence the motor quality and the performance of enterprises.

The utility model content

To the axiality that can not guarantee motor stator core internal diameter and support two ends seam in the prior art and because thereby the defective of this material of aluminum hull causes the support ovality to influence the damage of rotor upper bearing (metal); The motor oscillating that causes and the defective of noise, the utility model technical problem to be solved provide the novel expander device that a kind of machining accuracy is high, part is indeformable, efficient is high.

In order to solve the problems of the technologies described above, the technical scheme that the utility model adopted is: a kind of novel expander device, comprise mandrel, and mandrel is set with ringfeder outward.Mandrel is installed ringfeder and partly is the core that rises, and the outer wall of the core that rises is the conical surface, and the ringfeder endoporus is suitable with the outer wall of the core that rises, and ringfeder is provided with radial slot, is convenient to ringfeder spreading and contraction.Be set with the compression spring on the mandrel, compression spring one end contacts with the core that rises, and the other end contacts with ringfeder.The in-core portion car that rises has counterbore, places the compression spring in the endoporus.Ringfeder one side is provided with packing washer and clamp nut successively, and clamp nut and mandrel are for being threaded.Ringfeder and rising is with the compression spring and compresses through packing washer and the clamp nut that is spun on the mandrel thread between the core.Mandrel end car has screw thread, so that clamp nut and packing washer to be installed.Mandrel is provided with guide vane end stop.Also be milled with groove on the mandrel, place guide vane end stop.Guide vane end stop takes off after the expander tensioner behind the restriction stator.The mandrel end is provided with internal thread.The mandrel end car of getting on the bus has the Morse's taper that cooperates with lathe spindle, and spindle nose has tapping, so that the tension of lathe spindle draw-in bar.Stator core is sleeved on the ringfeder outside, and support is sleeved on the stator core outside.

The advantage of the utility model is; Ringfeder can the tensioner stator core internal diameter; On lathe, process support two ends seam again; To guarantee the axiality of stator core internal diameter and support two ends seam, improve the airgap uniformity degree between stator and the rotor, thereby reduce iron loss, vibration and the noise of motor; And then can improve motor quality, production efficiency, and increase benefit.

Description of drawings

Fig. 1 is the structural representation of a kind of novel expander device of the utility model;

Fig. 2 is the structural representation of a kind of novel expander device ringfeder of the utility model;

Fig. 3 is the expanded view of a kind of novel expander device ringfeder of this practicality;

Mark among the above-mentioned figure is: 1, mandrel, 2, guide vane end stop, 3, the core that rises, 4, ringfeder, 5, the compression spring, 6, packing washer, 7, clamp nut.

Embodiment

Fig. 1 is the structural representation of a kind of novel expander device of the utility model, comprises mandrel 1, the mandrel 1 outer ringfeder 4 that is set with; Mandrel 1 is installed ringfeder 4 parts and is the core 3 that rises; The outer wall of core 3 of rising is the conical surface, and ringfeder 4 endoporus are suitable with the outer wall of the core 3 that rises, and ringfeder 4 is provided with radial slot 41.Be set with compression spring 5 on the mandrel 1, compression spring 5 one ends contact with the core 3 that rises, and the other end contacts with ringfeder 4.Ringfeder 3 one sides are provided with packing washer 6 and clamp nut 7 successively, and clamp nut 7 and mandrel 1 are for being threaded.Mandrel 1 is provided with guide vane end stop 2.Mandrel 1 end is provided with internal thread.The mandrel 1 end car of getting on the bus has the Morse's taper that cooperates with lathe spindle, and spindle nose has tapping, so that the tension of lathe spindle draw-in bar.The core 3 inner cars that rise have counterbore, place the compression spring in the endoporus.Core shaft end's car has screw thread, so that clamp nut 7 and packing washer 6 to be installed.Also be milled with groove on the mandrel 1, place guide vane end stop 2.Guide vane end stop 2 takes off after the expander tensioner behind the restriction stator.Stator core is sleeved on ringfeder 4 outsides, and it is outside that said support is sleeved on said stator core.

The expander body is passed the internal diameter of stator core; Ringfeder 4 in this expander body can the tensioner stator core internal diameter; On lathe, process support two ends seam again; To guarantee the axiality of stator core internal diameter and support two ends seam, improve the airgap uniformity degree between stator and the rotor, thereby reduce iron loss, vibration and the noise of motor; And then can improve motor quality, production efficiency, and increase benefit.

Fig. 2 and Fig. 3 are the structural representation of a kind of novel expander device ringfeder of the utility model, and ringfeder 4 is provided with radial slot 41;

During use expander is imbedded in the lathe spindle through the tapering on the expander mandrel 1, and strain expander through the lathe spindle internal holes with pull bar.Earlier stator core is pressed in the support man-hour adding; Again stator core is enclosed within on the ringfeder 4 of expander; One end of support withstands on the guide vane end stop 2; The clamp nut 7 of screwing, along with the extruding of screwing through the core 3 that rises of clamp nut 7 makes ringfeder 4 stretching stator core internal diameters, last on lathe the two ends seam diameter and the end face of processing support.

Combine accompanying drawing that the utility model has been carried out exemplary description above; Obviously the concrete realization of the utility model does not receive the restriction of aforesaid way; As long as adopted the method design of the utility model and the improvement of the various unsubstantialities that technical scheme is carried out; Or the design of the utility model and technical scheme are directly applied to other occasion without improving, all within the protection range of the utility model.

Claims

1. novel expander device; It is characterized in that, comprise mandrel (1), the outer ringfeder (4) that is set with of said mandrel (1); Said mandrel (1) is installed ringfeder (4) part and is the core that rises (3); The outer wall of the said core that rises (3) is the conical surface, and the outer wall of said ringfeder (4) endoporus and the said core that rises (3) is suitable, and said ringfeder (4) is provided with radial slot (41).

2. expander device as claimed in claim 1 is characterized in that, is set with compression spring (5) on the said mandrel (1), and said compression spring (5) one ends contact with the said core that rises (3), and the other end contacts with said ringfeder (4).

3. according to claim 1 or claim 2 expander device is characterized in that said ringfeder (3) one sides are provided with packing washer (6) and clamp nut (7) successively, and said clamp nut (7) and mandrel (1) are for being threaded.

4. expander device as claimed in claim 3 is characterized in that, said mandrel (1) is provided with guide vane end stop (2).

5. expander device as claimed in claim 4 is characterized in that, said mandrel (1) end is provided with internal thread.