CN210898731U

CN210898731U - Sealing structure of motor

Info

Publication number: CN210898731U
Application number: CN201921129459.6U
Authority: CN
Inventors: 王晓敏
Original assignee: Zhoushan Dakang Technology Co ltd
Current assignee: Zhoushan Dakang Technology Co ltd
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-06-30
Anticipated expiration: 2029-07-18

Abstract

The utility model discloses a seal structure of motor belongs to motor technical field, including upper end cover, motor housing, lower housing, closing cap, the both ends at motor housing are installed with lower housing to the upper end cover, and the upper end cover upper end is equipped with the shield, and the shield middle part is equipped with the second and wears the jack, and the upper surface and the horizontal plane of shield have 20-25 contained angles, and the outer lane edge of shield is equipped with a plurality of recess. This seal structure has improved the leakproofness of motor, has reduced the vibration that the motor produced in the use, and the main part in the still effectual protection casing prevents that the part from rustting, prolongs the life of motor.

Description

Sealing structure of motor

Technical Field

The utility model belongs to the technical field of the motor, concretely relates to seal structure of motor.

Background

Traditional electric motor car motor seal structure has two kinds: one is when the motor assembly, scribble a layer sealed glue respectively between front end housing and casing and rear end housing and casing, and another kind uses the asbestos paper packing ring when the motor assembly, and reuse screw locking, then goes out the axle position at the pivot and adds the skeleton oil blanket and seal, and these two kinds of seal structures can both play certain waterproof and dustproof effect to motor inside in the short time.

However, in the using process of people, the actual working environment of the motor is severe, for example, the motor can be greatly vibrated due to the jolt of road conditions, and the motor can be in the severe environment of splashing, sprinkling or even soaking in rain; when the motor is in a water immersion state, the sealing glue and the asbestos paper gasket can be softened by melting water, and cannot play a role in sealing and water proofing; in addition, can produce a large amount of heats when motor heavy load during operation for the motor is in the high temperature state, however, if the motor is under the high temperature condition for a long time, sealed glue is ageing easily, and sealed effect can greatly reduced, leads to waterproof dustproof effect relatively poor, and inside the dust got into the motor easily, the normal work of influence motor shortened the life of motor.

Disclosure of Invention

An object of the utility model is to provide a seal structure of motor has improved the leakproofness of motor, has reduced the vibration that the motor produced in the use, still can effectual main part in the protection casing, prevents that the part from rustting, prolongs the life of motor.

The utility model discloses a realize that the technical scheme who takes of above-mentioned purpose does: a sealing structure of a motor comprises an upper end cover, a motor shell, a lower cover shell and a sealing cover, wherein the upper end cover and the lower cover shell are arranged at two ends of the motor shell, a dustproof cover is arranged at the upper end of the upper end cover, a second penetrating hole is formed in the middle of the dustproof cover, the upper surface of the dustproof cover and a horizontal plane form an included angle of 20-25 degrees, and a plurality of grooves are formed in the edge of the outer ring of the dustproof cover. The shield and pivot rigid coupling, the shield also can rotate simultaneously when the pivot pivoted, it can avoid getting into inside the motor at the rainy water of bad weather to set up the shield in upper end cover top, influence the use of motor, the life of motor has also been prolonged simultaneously, it directly throws away the rainwater that falls on the shield through the effect of centrifugal force, the shield can block various dust particles that drop except sheltering from the rainwater, rubbish etc. owing to its upper surface is equipped with certain contained angle with the horizontal plane under quiescent condition, rainwater, debris such as dust can be along the inclined plane landing of shield at the motor housing, can not fall to in the essential element of motor, the fault rate of very big motor that reduces, further protected the inside essential element of motor.

Preferably, a rotating shaft is arranged in the motor shell, the upper end of the rotating shaft penetrates through the upper end cover and the sealing cover and extends to the outside of the sealing cover, and the lower end of the rotating shaft is located in the lower cover shell. The arrangement of the rotating shaft penetrates through the whole motor, so that the motor rotor and the fan blades connected to the rotating shaft can rotate along with the motor at the same time.

Preferably, the middle part of the upper end cover is in a concave shape, a first penetrating hole is formed in the center of the upper end cover, a rotating shaft is inserted into the first penetrating hole, a bearing is sleeved at the contact part of the first penetrating hole and the rotating shaft, the first penetrating hole and the second penetrating hole are concentrically arranged, and an inwards arranged reverse buckle is connected to the bottom of the upper end cover. The design of upper end cover has improved the leakproofness of motor, and the back-off can be detained into the lateral wall of motor casing, closely laminates upper end cover and casing, and the inner space of upper end cover is great, can not make the inside temperature of motor too high, and the contact site cover of first interlude hole and pivot is equipped with the bearing and can has fixed and the effect of damping to the rotor, has improved the stability of motor in the operation process.

Preferably, the dustproof cover is fixedly connected with the rotating shaft, and the diameter of the dustproof cover is larger than that of the concave structure in the middle of the upper end cover. The dustproof cover and the rotating shaft are fixedly connected, the dustproof cover can rotate together when the rotating shaft rotates, rainwater and dust can be effectively isolated by the aid of the diameter of the dustproof cover, so that the isolated rainwater and dust cannot enter the concave structure, and the sealing performance of the motor is enhanced.

As the preferred, the lower housing includes casing and lower casing, and casing top is connected with the backup pad down, and the through-hole has been seted up to last casing edge, and the interlude has a short screw rod in the through-hole, and the short screw rod passes last casing and connects in the inside backup pad of casing down, and the through-hole has been seted up to the edge of upper end cover, and the interlude has a long screw rod in the through-hole, and the long screw rod passes motor casing and connects on last casing, and the contact site of short screw rod, long screw rod and last casing, upper end cover is equipped with. The long screw rod penetrates through the motor shell to be connected with the upper shell, the upper end cover is further fastened, the short screw rod is connected with the supporting plate in the lower shell, the upper shell is tightly connected with the lower shell, the sealing performance of the motor is effectively improved, the short screw rod and the long screw rod are respectively provided with the elastic cushion at the positions contacting with the upper shell and the upper end cover, and the screw rod cannot be loosened under the condition of not being twisted for a long time.

Preferably, a sealing cover is arranged below the lower shell, a sealing ring is sleeved at the contact part of the sealing cover and the lower shell, a counter bore is formed in the side wall of the lower shell, a screw is screwed in the counter bore, and the screw penetrates through the lower shell and is connected with the sealing cover. The closing cap that the casing bottom set up down is used for dismantling, just can open when maintaining the flabellum, because the closing cap plays sealed effect not enough through solitary screwed connection in the bottom of motor, establish the sealing washer can be sealed completely at the closing cap with the contact site cover of casing down, thereby play waterproof, dirt-proof effect, the sealing washer adopts rubber preparation to form, rubber has high low temperature resistant performance, ageing resistance, characteristics that mechanical properties and solvent resistance are strong, therefore, the waterproof dustproof ability of the sealing washer of adoption rubber preparation is strong, the life cycle is long, save cost.

A motor comprises an upper end cover, a motor shell, a lower cover shell, a sealing cover and a sealing structure of the motor.

Compared with the prior art, the beneficial effects of the utility model are that: set up the shield above the upper end cover of motor housing can avoid inside the rainwater gets into the motor in bad weather, influence the use of motor, the life of motor has also been prolonged simultaneously, the upper end cover is detained into motor housing lateral wall and long screw's fixed leakproofness has further improved motor housing through the back-off, the sealing washer can be sealed completely to the contact site cover of lower housing bottom and closing cap is established, thereby play waterproof, dirt-proof effect, the sealing washer adopts the rubber preparation to form, its make full use of the sealing washer characteristics.

The utility model provides an above-mentioned technical scheme provides a seal structure of motor, has compensatied the not enough of prior art.

Drawings

Fig. 1 is a schematic structural view of a sealing structure of a motor according to the present invention;

FIG. 2 is a schematic structural view of the dust cap of the present invention;

FIG. 3 is a schematic structural view of the dust cap of the present invention;

fig. 4 is a front view of the upper end cover of the present invention;

fig. 5 is an enlarged view of the position a of the present invention.

Description of reference numerals: 1, a dust cover; 2, a bearing; 3, rotating a shaft; 4, elastic cushion; 5, an upper end cover; 6, a long screw rod; 7, a motor shell; 8 second through holes; 9 short screw rods; 10 a support plate; 11 a lower housing; 12, grooves; 13, sealing rings; 14, sealing the cover; 15 a first feedthrough hole; 16, reversing; 17 counter bore; 18 screws; 19 an upper shell; 20 lower shell.

Detailed Description

The invention is described in further detail below with reference to the following examples and figures:

example 1:

as shown in fig. 1-5, a sealing structure of a motor comprises an upper end cover 5, a motor casing 7, a lower housing 11 and a sealing cover 14, wherein the upper end cover 5 and the lower housing 11 are installed at two ends of the motor casing 7, a dust cover 1 is arranged at the upper end of the upper end cover 5, a second through hole 8 is arranged in the middle of the dust cover 1, an included angle of 20-25 degrees is formed between the upper surface of the dust cover 1 and a horizontal plane, and a plurality of grooves 12 are arranged at the edge of an outer ring of the dust cover 1. The shield and pivot rigid coupling, the shield also can rotate simultaneously when the pivot pivoted, it can avoid getting into inside the motor at the rainy water of bad weather to set up the shield in upper end cover top, influence the use of motor, the life of motor has also been prolonged simultaneously, it directly throws away the rainwater that falls on the shield through the effect of centrifugal force, the shield can block various dust particles that drop except sheltering from the rainwater, rubbish etc. owing to its upper surface is equipped with certain contained angle with the horizontal plane under quiescent condition, rainwater, debris such as dust can be along the inclined plane landing of shield at the motor housing, can not fall to in the essential element of motor, the fault rate of very big motor that reduces, further protected the inside essential element of motor.

The motor shell 7 is internally provided with a rotating shaft 3, the upper end of the rotating shaft 3 penetrates through the upper end cover 5 and the sealing cover 14 and extends to the outside of the sealing cover 14, and the lower end of the rotating shaft 3 is positioned in the lower housing 11. The arrangement of the rotating shaft penetrates through the whole motor, so that the motor rotor and the fan blades connected to the rotating shaft can rotate along with the motor at the same time.

The middle part of the upper end cover 5 is in a concave shape, a first through hole 15 is formed in the center of the upper end cover 5, a rotating shaft 3 is inserted into the first through hole 15, a bearing 2 is sleeved at the contact part of the first through hole 15 and the rotating shaft 3, the first through hole 15 and the second through hole 8 are arranged concentrically, and an inward-arranged reverse buckle 16 is connected to the bottom of the upper end cover 5. The design of upper end cover has improved the leakproofness of motor, and the back-off can be detained into the lateral wall of motor casing, closely laminates upper end cover and casing, and the inner space of upper end cover is great, can not make the inside temperature of motor too high, and the contact site cover of first interlude hole and pivot is equipped with the bearing and can has fixed and the effect of damping to the rotor, has improved the stability of motor in the operation process.

The dust cover 1 is fixedly connected with the rotating shaft 3, and the diameter of the dust cover 3 is larger than that of the concave structure in the middle of the upper end cover 5. The dustproof cover and the rotating shaft are fixedly connected, the dustproof cover can rotate together when the rotating shaft rotates, rainwater and dust can be effectively isolated by the aid of the diameter of the dustproof cover, so that the isolated rainwater and dust cannot enter the concave structure, and the sealing performance of the motor is enhanced.

Lower housing 11 includes casing 19 and casing 20 down, casing 20 top is connected with backup pad 10 down, 19 edges of last casing have seted up the through-hole, the interlude has short screw 9 in the through-hole, short screw 9 passes casing 19 and connects on the inside backup pad 10 of casing 20 down, the through-hole has been seted up to the edge of upper end cover 5, the interlude has long screw 6 in the through-hole, long screw 6 passes motor housing 7 and connects on last casing 19, short screw 9, long screw 6 and last casing 19, the contact site of upper end cover 5 is equipped with bullet pad 4. The long screw rod penetrates through the motor shell to be connected with the upper shell, the upper end cover is further fastened, the short screw rod is connected with the supporting plate in the lower shell, the upper shell is tightly connected with the lower shell, the sealing performance of the motor is effectively improved, the short screw rod and the long screw rod are respectively provided with the elastic cushion at the positions contacting with the upper shell and the upper end cover, and the screw rod cannot be loosened under the condition of not being twisted for a long time.

A sealing cover 14 is arranged below the lower shell 20, a sealing ring 13 is sleeved at the contact part of the sealing cover 14 and the lower shell 20, a counter bore 17 is formed in the side wall of the lower shell 20, a screw 18 is screwed in the counter bore 17, and the screw 18 penetrates through the lower shell 20 and is connected with the sealing cover 14. The closing cap that the casing bottom set up down is used for dismantling, just can open when maintaining the flabellum, because the closing cap plays sealed effect not enough through solitary screwed connection in the bottom of motor, establish the sealing washer can be sealed completely at the closing cap with the contact site cover of casing down, thereby play waterproof, dirt-proof effect, the sealing washer adopts rubber preparation to form, rubber has high low temperature resistant performance, ageing resistance, characteristics that mechanical properties and solvent resistance are strong, therefore, the waterproof dustproof ability of the sealing washer of adoption rubber preparation is strong, the life cycle is long, save cost.

An electric machine comprising an upper end cover 5, a machine case 7, a lower casing 11, a cover 14, and a sealing structure of the electric machine according to any one of claims 1 to 6.

Example 2:

the utility model relates to a seal structure of motor can improve the leakproofness of motor, prolong the life of motor, both ends are equipped with upper end cover 5 and lower housing 11 around motor housing 7, upper end cover 5 all are connected with motor housing 7 through the screw rod with lower housing 11, upper end cover 5 top is equipped with shield 1, shield 1 and pivot 3 rigid coupling, shield 1 also can rotate simultaneously in pivot 3 pivoted, can avoid rainwater entering motor inside under bad weather, it directly throws away the rainwater that falls on the shield through the effect of centrifugal force, shield 1 is because its upper surface is equipped with certain contained angle with the horizontal plane under quiescent condition, debris such as rainwater, dust can be along the inclined plane landing of shield at motor housing, can not fall into the main part of motor, the very big fault rate of motor that reduces, the closing cap 14 that sets up bottom housing 11 is used for dismantling, The fan blades can be opened when being maintained, and the sealing ring 13 is sleeved at the contact part of the sealing cover 14 and the lower housing 11 to be completely sealed, so that the waterproof and dustproof effects are achieved.

The conventional techniques in the above-mentioned embodiments 1 and 2 are known to those skilled in the art and will not be described in detail herein.

The above embodiments are merely illustrative, and not restrictive, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.

Claims

1. The utility model provides a seal structure of motor, includes upper end cover (5), motor housing (7), lower housing (11), closing cap (14), and the both ends at motor housing (7) are installed with lower housing (11) in upper end cover (5), and upper end cover (5) upper end is equipped with shield (1), its characterized in that: the middle of the dustproof cover (1) is provided with a second through hole (8), the upper surface of the dustproof cover (1) forms an included angle of 20-25 degrees with the horizontal plane, and the edge of the outer ring of the dustproof cover (1) is provided with a plurality of grooves (12).

2. A sealing structure of a motor according to claim 1, wherein: the motor is characterized in that a rotating shaft (3) is arranged inside the motor shell (7), the upper end of the rotating shaft (3) penetrates through the upper end cover (5) and the sealing cover (14) and extends to the outside of the sealing cover (14), and the lower end of the rotating shaft (3) is located inside the lower cover shell (11).

3. A sealing structure of a motor according to claim 1, wherein: the middle part of the upper end cover (5) is in a concave shape, a first through hole (15) is formed in the center of the upper end cover (5), a rotating shaft (3) is inserted into the first through hole (15), a bearing (2) is sleeved on the contact position of the first through hole (15) and the rotating shaft (3), the first through hole (15) and the second through hole (8) are concentrically arranged, and an inward-arranged reverse buckle (16) is connected to the bottom of the upper end cover (5).

4. A sealing structure of a motor according to claim 1, wherein: the dustproof cover (1) is fixedly connected with the rotating shaft (3), and the diameter of the dustproof cover (1) is larger than that of the concave structure in the middle of the upper end cover (5).

5. A sealing structure of a motor according to claim 1, wherein: the lower housing (11) comprises an upper housing (19) and a lower housing (20), the top of the lower housing (20) is connected with a support plate (10),

go up casing (19) edge and seted up the through-hole, short screw rod (9) have been seted up to the through-hole interlude, short screw rod (9) pass last casing (19) and connect on backup pad (10) of casing (20) inside down, the through-hole has been seted up to the edge of upper end cover (5), it has long screw rod (6) to alternate in the through-hole, long screw rod (6) pass motor casing (7) and connect on last casing (19), the contact site of short screw rod (9), long screw rod (6) and last casing (19), upper end cover (5) is equipped with bullet pad (4).

6. A sealing structure of a motor according to claim 5, wherein: a sealing cover (14) is arranged below the lower shell (20), a sealing ring (13) is sleeved at the contact part of the sealing cover (14) and the lower shell (20), a counter bore (17) is formed in the side wall of the lower shell (20), a screw (18) is screwed in the counter bore (17), and the screw (18) penetrates through the lower shell (20) and is connected with the sealing cover (14).

7. An electric machine, characterized by comprising an upper end cover (5), a machine housing (7), a lower casing (11), a cover (14) and a sealing structure of the electric machine according to any one of claims 1 to 6.