CN107659027A

CN107659027A - A kind of high heat conduction radiation electromotor

Info

Publication number: CN107659027A
Application number: CN201711046272.5A
Authority: CN
Inventors: 郑道军
Original assignee: Zhejiang Wan Shida Electric Machine Co Ltd
Current assignee: Zhejiang Wan Shida Electric Machine Co Ltd
Priority date: 2017-10-31
Filing date: 2017-10-31
Publication date: 2018-02-02

Abstract

The invention discloses a kind of high heat conduction radiation electromotor, including rotating shaft, rotor, motor casing, stator, drive end bearing bracket and rear end cap, rotating shaft and rotor are arranged in motor casing and outside the both ends stretching drive end bearing bracket and rear end cap of rotating shaft, rotating shaft is connected with drive end bearing bracket by fore bearing, rotating shaft is connected with rear end cap by rear bearing, the part that rotating shaft is stretched out outside rear end cap is fixed with fan, is characterized in：The inner side of drive end bearing bracket is equipped with pressing plate by screw Guan County, and pressing plate has the flange part that a circle is resisted against front axle bearing outer-ring；Rear end cap is provided centrally with shaft hole, and the bearing block concentric with shaft hole is provided with the inside of rear end cap, several is provided with rear end cap centered on shaft hole and equally distributed slotted eye, interts in slotted eye and is provided with high heat conduction fin.The present invention has and can eliminate axial float, can guarantee that the axiality of bearing block and rear end cap, also has very high heat conduction and heat radiation performance, ensure the safe to use of motor, the characteristics of improving the service life of motor.

Description

A kind of high heat conduction radiation electromotor

Technical field

The invention belongs to technical field of motors, more particularly, to a kind of high heat conduction radiation electromotor.

Background technology

The rotating shaft of existing motor is typically set in motor front and back ends in entry type by bearing and covered, and passes through waveform Packing ring elastic force make rotating shaft axially wherein one section it is spacing, motor is because processing environment is more severe, when bearing capacity is more than Corrugation pad When enclosing elastic force, it may appear that the forward and backward movement of rotating shaft is out of control, axial float occurs, and the phenomenon of diastema, Wu Faman occurs in long-term use Sufficient high-precision grinding needs, or even the appearance of rotating shaft stuck phenomena such as can not working occurs.

The heat abstractor that conventional motors are set in itself is generally radiating ribs and leaf fan on casing, but motor is in reality Border in use, easily cause electric motor overheating because usage time is long, radiating not in time, the feelings for causing motor easily to burn Condition occurs, and increases cost, and greatly shorten the service life of motor.

Motor rear end plate top chock and end cap generally require assembling, easily loosen during processing, it is impossible to ensure bearing block With the axiality of end cap, rotor can be caused to be rotated in generator during assembling and had some setbacks, rotor and stator locking when serious.

The content of the invention

The purpose of the present invention is to be directed to above-mentioned the shortcomings of the prior art, there is provided a kind of high heat conduction radiation electromotor, it With axial float can be eliminated, the axiality of bearing block and rear end cap is can guarantee that, also there is very high heat conduction and heat radiation performance, is ensured Safe to use, the characteristics of improving the service life of motor of motor.

To achieve these goals, the technical solution adopted in the present invention is：A kind of high heat conduction radiation electromotor, including turn Axle, the rotor in rotating shaft, motor casing, the stator in motor casing and the front end for being installed on motor casing rear and front end Drive end bearing bracket and rear end cap are stretched out in the both ends that lid and rear end cap, described rotating shaft and rotor are arranged on the interior and described rotating shaft of motor casing Outside, described rotating shaft is connected with drive end bearing bracket by fore bearing, and described rotating shaft is connected with rear end cap by rear bearing, described Rotating shaft stretch out rear end cap outside part be fixed with fan, the inner side of the drive end bearing bracket is equipped with pressing plate by screw Guan County, described Pressing plate there is a circle to be resisted against the flange part of front axle bearing outer-ring；The rear end cap is provided centrally with shaft hole, the rear end The bearing block concentric with shaft hole is provided with the inside of lid, several are provided with the rear end cap centered on shaft hole and Equally distributed slotted eye, intert in described slotted eye and high heat conduction fin is installed.

The periphery of the rear end cap be uniformly provided with several connection stake, it is described connection stake on be respectively arranged with laterally and Vertical screw.

The high heat conduction fin is conductive graphite piece.

After said structure, the invention has the advantages that compared with the prior art,：Bearing block of the present invention and rear end Cover as an entirety, it is not necessary to assemble, it is concentric when can so ensure bearing block with rear end cap rotating shaft hole machined, it is convenient for assembly； Slotted eye is set on rear end cap, and interts high heat conduction fin in slotted eye, the space that high heat conduction fin can enter in motor Cavity, the high temperature in motor can be effectively absorbed, and high temperature conduction is distributed to outside machine cavity, perfect heat-dissipating, ensure electricity Motivation it is safe to use, improve the service life of motor；The setting of pressing plate can eliminate axial float.

Brief description of the drawings

Fig. 1 is the structural representation of the present invention.

Fig. 2 is the front view of rear end cap.

Fig. 3 is the sectional view of rear end cap.

Embodiment

As described below is only presently preferred embodiments of the present invention, is not intended to limit the scope of the present invention, ties below Closing drawings and examples, the present invention is further described.

Embodiment, as shown in Fig. 1 to Fig. 3：A kind of high heat conduction radiation electromotor, including rotating shaft 1, in rotating shaft 1 Rotor, motor casing 2, the stator in motor casing 2 and the drive end bearing bracket 3 and rear end cap 4 that are installed on the rear and front end of motor casing 2, Described rotating shaft 1 and rotor are arranged in motor casing 2 and outside the both ends stretching drive end bearing bracket 3 and rear end cap 4 of described rotating shaft 1, institute The rotating shaft 1 stated is connected with drive end bearing bracket 3 by fore bearing 5, and described rotating shaft 1 is connected with rear end cap 4 by rear bearing 6, institute The part that the rotating shaft 1 stated is stretched out outside rear end cap 4 is fixed with fan 7, and the inner side of the drive end bearing bracket 3 is equipped with pressure by the Guan County of screw 8 Plate 9, described pressing plate 9 have the flange part that a circle is resisted against the outer ring of fore bearing 5；The rear end cap 4 is provided centrally with rotating shaft Hole 10, the inner side of the rear end cap 4 is provided with the bearing block 11 concentric with shaft hole 10, if being provided with the rear end cap 4 Dry centered on shaft hole 10 and equally distributed slotted eye 12, is interted in described slotted eye 12 and is provided with high heat conduction fin 13。

The periphery of rear end cap 4 is uniformly provided with several connection stakes 14, and horizontal stroke is respectively arranged with the connection stake 14 To with vertical screw, facilitate the installation of rear end cap 4 and motor casing 2 and the installation of fan housing.

There is a choosing, the high heat conduction fin 13 is conductive graphite piece, heat conductivity graphite material (Thermal Flexible Graphite sheet) chemical composition be mainly single carbon (C) element, be a kind of native element metal mineral film producing high-molecular Compound.

Bearing block 11 of the present invention and rear end cap 4 are an entirety, it is not necessary to assemble, can so ensure bearing block 11 with after The shaft hole 10 of end cap 4 is concentric when processing, convenient for assembly；Slotted eye 12 is set on rear end cap 4, and interts high heat conduction in slotted eye 12 Fin 13, the space cavity that high heat conduction fin 13 can enter in motor, can effectively absorb the high temperature in motor, and by height Temperature conduction is distributed to outside machine cavity, perfect heat-dissipating, is ensured the safe to use of motor, is improved the service life of motor； The setting of pressing plate 9 can eliminate axial float.

Claims

1. a kind of high heat conduction radiation electromotor, including rotating shaft（1）, installed in rotating shaft（1）On rotor, motor casing（2）, be arranged on Motor casing（2）Interior stator and it is installed on motor casing（2）The drive end bearing bracket of rear and front end（3）And rear end cap（4）, described rotating shaft （1）Motor casing is arranged on rotor（2）Interior and described rotating shaft（1）Both ends stretch out drive end bearing bracket（3）And rear end cap（4）Outside, institute The rotating shaft stated（1）With drive end bearing bracket（3）Pass through fore bearing（5）It is connected, described rotating shaft（1）With rear end cap（4）Pass through rear bearing （6）It is connected, described rotating shaft（1）Stretch out rear end cap（4）Outer part is fixed with fan（7）, it is characterised in that：The front end Lid（3）Inner side pass through screw（8）Guan County is equipped with pressing plate（9）, described pressing plate（9）Fore bearing is resisted against with a circle（5）Outside The flange part of circle；The rear end cap（4）Be provided centrally with shaft hole（10）, the rear end cap（4）Inner side be provided with turn Axis hole（10）Concentric bearing block（11）, the rear end cap（4）On be provided with several with shaft hole（10）Centered on and The slotted eye of even distribution（12）, described slotted eye（12）In intert high heat conduction fin is installed（13）.

A kind of 2. high heat conduction radiation electromotor according to claim 1, it is characterised in that：The rear end cap（4）Periphery Uniformly it is provided with several connection stakes（14）, the connection stake（14）On be respectively arranged with horizontal and vertical screw.

A kind of 3. high heat conduction radiation electromotor according to claim 1, it is characterised in that：The high heat conduction fin（13） For conductive graphite piece.