CN210007518U

CN210007518U - kinds of durable electric machine

Info

Publication number: CN210007518U
Application number: CN201921111915.4U
Authority: CN
Inventors: 张新华
Original assignee: Guangzhou Zhongtian Motor Co Ltd
Current assignee: Guangzhou Zhongtian Motor Co Ltd
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2020-01-31
Anticipated expiration: 2029-07-16

Abstract

The utility model discloses an durable motor, including the casing, fix the stator in the casing, rotationally install in the casing and with stator assorted rotor and the air supply fan of being connected with the rotor, the top of casing is provided with the top lid, be provided with on the lid of top and be a plurality of air inlet duct of circumference range around the axis of rotation of rotor, be provided with the supporting part between two arbitrary adjacent air inlet ducts, air inlet duct department is provided with strains the net, this durable motor still includes the shroud device, the shroud device passes through the clutch and is connected with the rotor, the shroud device includes the lid, the lid includes and corresponds with this a plurality of air inlet duct respectively and is used for shielding a plurality of enclosure that corresponds the air inlet duct.

Description

kinds of durable electric machine

Technical Field

The utility model relates to an kinds of durable motors.

Background

The existing motor comprises a shell, a stator fixed in the shell and a rotor rotatably installed in the shell and matched with the stator. However, in the process of storing the motor, foreign matters such as external dust particles and stone particles often easily enter the casing of the motor from the air inlet duct of the motor, and when the rotor rotates, the foreign matters collide with the rotor easily, so that the rotor is seriously abraded to cause damage to the rotor, and the service life of the motor is influenced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide an kinds of durable motors, it is under the condition that adopts the supply-air fan to dispel the heat fast to deposit the in-process at the motor and can avoid external foreign matter to get into the casing from the intake stack, reducible rotor damages.

The purpose of the utility model is realized by adopting the following technical scheme:

durable motor comprises a casing, a stator fixed in the casing, a rotor rotatably mounted in the casing and matched with the stator, a blower fan connected with the rotor, a top end cover arranged on the top end of the casing, a plurality of air inlet slots arranged circumferentially around the rotation axis of the rotor, a support part arranged between any two adjacent air inlet slots, a filter mesh arranged at the air inlet slots, a cover device connected with the rotor through a clutch, and a cover body comprising a plurality of closed parts corresponding to the air inlet slots and used for shielding the corresponding air inlet slots.

The cover device comprises a support shaft and a sleeve, wherein the end of the support shaft is rotatably arranged on the top end cover, the end of the support shaft is connected with the rotor through a clutch, the sleeve is sleeved on the support shaft, and the sleeve is fixed on the cover body.

The sleeve is movably sleeved on the supporting shaft, an elastic sheet is arranged between the sleeve and the clutch, the elastic sheet is sleeved on the supporting shaft and used for providing elastic force for promoting the sleeve to move towards the direction close to the top end cover.

The support shaft is provided with a linkage section, the cross section of the linkage section is rectangular, and the sleeve is provided with a matching groove which is matched with the linkage section and is used for the linkage section to penetrate.

The cover body comprises a central ring, and the plurality of closed parts are circumferentially arranged around the central ring; the sleeve and the center ring are coaxially arranged and fixed on the center ring.

The bottom end of the casing is provided with a bottom end cover opposite to the top end cover, the bottom end cover is provided with an air outlet, and the air outlet is provided with a one-way air valve.

Compared with the prior art, the beneficial effects of the utility model reside in that the utility model provides an kinds of durable motors, it is under the condition that adopts the supply-air fan in order to dispel the heat fast, and through being provided with in intake stack department and strain the net, thereby in reducible external foreign matter gets into the casing through the intake stack in the motor working process, and, deposit the in-process at the motor, still can utilize the work of clutch, so that the shroud device can rotate along with the rotor, thereby usable closing part shields the intake stack, thereby can avoid external foreign matter to get into the casing from the intake stack in the motor is deposited the in-process, in order to reduce the condition that the rotor damaged, can effectively prolong the life of motor.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is an exploded view of the cover device;

in the figure: 10. a housing; 11. a support frame; 12. an upper bearing; 13. a lower bearing; 20. a stator; 30. a rotor; 40. an air supply fan; 50. a top end cap; 51. an air inlet groove; 52. filtering the grids; 60. a cover means; 61. a support shaft; 62. a sleeve; 63. a spring plate; 64. a linkage section; 65. a mating groove; 70. a clutch; 80. a cover body; 81. a closing part; 90. a bottom end cap; 91. an air outlet; 92. a one-way air valve.

Detailed Description

The present invention will be described in with reference to the accompanying drawings and the detailed description, wherein it is to be understood that various embodiments or technical features described below can be combined arbitrarily to form new embodiments without conflict.

As shown in fig. 1-3, kinds of durable motors comprise a housing 10, a stator 20 fixed in the housing 10, a rotor 30 rotatably installed in the housing 10 and matching with the stator 20, and a blowing fan 40 connected with the rotor 30, wherein a top end cover 50 is provided at the top end of the housing 10, a plurality of air inlet slots 51 circumferentially arranged around the rotation axis of the rotor 30 are provided on the top end cover 50, a support part is provided between any two adjacent air inlet slots 51, a filter mesh 52 is provided at the air inlet slots 51, the durable motor further comprises a cover device 60, the cover device 60 is connected with the rotor 30 through a clutch 70, the cover device 60 comprises a cover body 80, and the cover body 80 comprises a plurality of sealing parts 81 corresponding to the air inlet slots 51 and used for shielding the corresponding air inlet slots 51 and corresponding to the air inlet slots 51 respectively .

Before the motor is stored, and when the rotor 30 rotates, the clutch 70 works to enable the cover device 60 to rotate along with the rotor 30, so that each closed part 81 of the cover 80 rotates to be right opposite to the air inlet slot 51, and accordingly, the closed parts 81 can shield the corresponding air inlet slots 51, so that external foreign matters can be prevented from entering the casing 10 through the air inlet slots 51 in the motor storage process, and when the rotor 30 rotates in the motor use process, the clutch 70 works to enable the cover device 60 to rotate along with the rotor 30, so that each closed part 81 of the cover 80 rotates to be right opposite to a supporting part, so that external air can enter the casing 10 through the filter mesh 52 in the air supply fan 40 along with the rotation of the rotor 30, and by utilizing the filtering function of the filter mesh 52, the external foreign matters can be reduced from entering the casing 10 along with the air in the motor work process.

Specifically, the filter mesh 52 is fixed at the air inlet slot 51 by welding, so that the stability of fixing the filter mesh 52 can be ensured.

Preferably, the cover device 60 includes a supporting shaft 61 and a sleeve 62, wherein an end of the supporting shaft 61 is rotatably mounted on the top end cover 50, another end of the supporting shaft is connected with the rotor 30 through the clutch 70, the sleeve 62 is sleeved on the supporting shaft 61, and the sleeve 62 is fixed on the cover body 80, and the cover device 60 is combined with the supporting shaft 61 and the sleeve 62 on the basis of the cover body 80, so that the power of the rotor 30 can be transmitted to the cover body 80 through the clutch 70, and the installation is convenient.

The sleeve 62 is movably sleeved on the support shaft 61, an elastic sheet 63 is installed between the sleeve 62 and the clutch 70, and the elastic sheet 63 is sleeved on the support shaft 61 and used for providing elastic force for promoting the sleeve 62 to move towards the direction close to the top end cover 50. After the cover 80 is rotated in place, the sleeve 62 can be pushed toward the top end cover 50 by the elastic force provided by the elastic sheet 63, so that the sleeve 62, the cover 80 and the top end cover 50 are attached to each other, thereby preventing the cover 80 from shaking randomly, and improving the sealing performance between the cover 80 and the top end cover 50 when the motor is stored.

The support shaft 61 is provided with a linkage section 64, the cross section of the linkage section 64 is rectangular, and the sleeve 62 is provided with a matching groove 65 which is matched with the linkage section 64 and is used for the linkage section 64 to penetrate through. By adopting the above structure for the supporting shaft 61 and the sleeve 62, the sleeve 62 can rotate along with the linkage section 64, and can be displaced axially relative to the linkage section 64 under the elastic force of the elastic sheet 63, and the processing and manufacturing are facilitated.

Preferably, the cover 80 comprises a central ring around which the plurality of closing portions 81 are arranged circumferentially; the sleeve 62 is arranged coaxially with the centre ring and is fixed to the centre ring. By adopting the above configuration, the weight of the lid body 80 can be reduced, and the load on the support shaft 61 can be reduced.

Specifically, the top end cover 50 is fixed on the casing 10 through an th locking screw, the top end cover 50 is provided with a th through hole, the casing 10 is provided with a th threaded hole, and the th locking screw is inserted in the th through hole and is in threaded connection with the th threaded hole.

The bottom end of the casing 10 is provided with a bottom end cover 90 opposite to the top end cover 50, the bottom end cover 90 is provided with an air outlet 91, and the air outlet 91 is provided with a one-way air valve 92, so that when the air supply fan 40 rotates along with the rotor 30, air can enter the casing 10 through the filter screen lattice 52 of the air inlet groove 51, and take away heat generated during the operation of the stator 20 and the rotor 30, and then is discharged through the one-way air valve 92.

Specifically, the bottom end cover 90 is fixed on the casing 10 through a second locking screw, a second through hole is formed in the bottom end cover 90, a second threaded hole is formed in the casing 10, and the second locking screw penetrates through the second through hole and is in threaded connection with the second threaded hole. By adopting the structure, the bottom end cover 90 can be conveniently disassembled and assembled, so that the parts in the shell 10 can be conveniently maintained.

A support frame 11 is further disposed in the housing 10, and the clutch 70 is located above the support frame 11. The support frame 11 is provided with a hollow area through which air passes. Specifically, the supporting frame 11 includes an outer ring fixedly connected to the housing, an inner ring located inside the outer ring, and a plurality of connecting arms circumferentially arranged around the inner ring, the connecting arms are connected between the outer ring and the inner ring, the rotor 30 passes through the inner ring, and the supporting frame 11 is configured as above, so that structural stability is ensured, and material consumption and cost reduction are achieved.

The utility model discloses a rotor structure, including braced frame 11, bottom end cover 90, upper bearing 12, lower bearing 13, rotor 30, lower bearing 13, upper end cover, lower bearing 12, upper end cover, lower bearing 13, upper end cover and lower end cover are provided with the last mount pad that extends down on braced frame 11, be provided with the last mount pad that extends up on the bottom end cover 90, be provided with upper bearing 12 on the last mount pad, be provided with lower bearing 13 on the lower mount pad, the upper end of rotor 30 alternates in the inner circle of upper bearing 12, and the lower extreme alternates in the inner circle of lower bearing 13, and through adopting.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

The durable motor is characterized in that a top end cover is arranged at the top end of the machine shell, a plurality of air inlet grooves which are arranged in the machine shell in a circumferential mode around the rotation axis of the rotor are formed in the top end cover, a supporting portion is arranged between any two adjacent air inlet grooves, filter grids are arranged at the air inlet grooves, the cover device is connected with the rotor through a clutch, the cover device comprises a cover body, and the cover body comprises a plurality of sealing portions which correspond to the air inlet grooves respectively and are used for shielding the corresponding air inlet grooves.
2. The durable motor of claim 1, wherein said cover means comprises a support shaft and a sleeve, wherein said support shaft is rotatably mounted at end thereof to said top end cover and is connected at end thereof to said rotor through a clutch, said sleeve is fitted over said support shaft, and said sleeve is fixed to said cover.
3. The durable electric machine of claim 2, wherein: the sleeve is movably sleeved on the supporting shaft, an elastic sheet is arranged between the sleeve and the clutch, the elastic sheet is sleeved on the supporting shaft and used for providing elastic force for promoting the sleeve to move towards the direction close to the top end cover.
4. The durable electric machine of claim 3, wherein: the support shaft is provided with a linkage section, the cross section of the linkage section is rectangular, and the sleeve is provided with a matching groove which is matched with the linkage section and is used for the linkage section to penetrate.
5. The durable electric machine of claim 3, wherein: the cover body comprises a central ring, and the plurality of closed parts are circumferentially arranged around the central ring; the sleeve and the center ring are coaxially arranged and fixed on the center ring.
6. The durable electric machine of claim 3, wherein: the bottom end of the casing is provided with a bottom end cover opposite to the top end cover, the bottom end cover is provided with an air outlet, and the air outlet is provided with a one-way air valve.