Waterproof and moistureproof outdoor motor sealing device

Abstract

The utility model relates to the technical field of motors, in particular to a waterproof and moisture-proof outdoor motor sealing device which comprises a protective shell assembly, a motor body and an output shaft, the inner side of the protective shell assembly is fixedly connected with the motor body, the inner side of the motor body is provided with the output shaft, and the outer side of the output shaft is fixedly connected with fan blades. The outer side of the output shaft is fixedly connected with a sealing assembly, the rear end of the sealing assembly is fixedly connected with a centrifugal air exhaust assembly, the sealing assembly comprises a metal shell, the outer side of the metal shell is fixedly connected with a sealing air bag, an inner ring groove is formed in the inner side of the metal shell, an outer through hole is formed in the inner side, close to the inner ring groove, of the metal shell, and a rear through hole is formed in the rear end of the metal shell. According to the utility model, the device effectively solves the problem that the existing motor is easily affected with damp, reduces the phenomenon that the motor is damaged due to the friction between a sealing air bag and an external object when the motor works, and guarantees the performance and the service life of the motor in a humid environment.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field, concretely is a waterproof and moistureproof outdoor motor sealing device. BACKGROUND

[0002] The motor is a kind of electrical equipment for converting electric energy into mechanical energy, it produces rotation or linear motion by the force of electrically conducting body in magnetic field, to drive various mechanical devices to run, is widely used in industrial production, transportation, household appliances and many other fields, such as machine tool in factory, motor drive system in car, electric fan at home, washing machine etc., is indispensable power source in modern life,

[0003] In the environment with high relative humidity, motor surface is easy to condense water film, when humidity is higher than 95% or more, motor interior often condenses water drop, can make some insulation material swell, some soft and sticky, mechanical and electrical performance deteriorate, easy to occur insulation breakdown and surface flashover;

[0004] In prior art, in order to realize waterproof and moistureproof between motor spindle and sealing device, usually install motor in sealed box, make the spindle of motor extend from sealed box, and install sealing bearing between spindle and sealed box, although this design can effectively prevent moisture and humidity from entering motor interior, but the contact type sealing bearing used has some problems, specifically, the contact between sealing ring and spindle can increase friction, which can cause bearing heating when spindle high-speed operation, and in turn reduce the service life of bearing, therefore, aiming at the above problems, a waterproof and moistureproof outdoor motor sealing device is provided. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a waterproof and moistureproof outdoor motor sealing device to solve the problem that the contact between sealing ring and spindle can increase friction when installing sealing bearing between motor spindle and sealed box, which can cause bearing heating when spindle high-speed operation, and in turn reduce the service life of bearing.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] The utility model provides a waterproof and moisture -proof type outdoor motor sealing device, including the protection shell subassembly, motor body and output shaft, the inside fixed connection of protection shell subassembly has motor body, the inside installation of motor body has output shaft, output shaft outside fixed connection has the vane, output shaft outside fixed connection has the sealing assembly, the rear end fixed connection of sealing assembly has centrifugal air -exhaust subassembly, sealing assembly includes metal shell, metal shell outside fixed connection has sealed air bag, the inside of metal shell is equipped with inner ring groove, the inside of metal shell is equipped with outer through -hole near inner ring groove, the rear end of metal shell is equipped with rear through -hole, centrifugal air -exhaust subassembly includes the zigzag cylinder, the one side fixed connection of zigzag cylinder has the reinforcing rod, the inside of zigzag cylinder is equipped with zigzag, the inside of zigzag cylinder is equipped with the interface near zigzag front end, the upper end of zigzag cylinder is equipped with the slow pressure hole, the inside fixed connection of zigzag cylinder is equipped with spring telescopic rod near upper end, the bottom fixed connection of spring telescopic rod has counterweight, the outside fixed connection of counterweight has the second rubber ring, the rear end of metal shell is fixedly connected with the front end of zigzag cylinder, the inside of metal shell is fixedly connected with the outside of output shaft.

[0008] As the further optimization of the utility model, the protection shell subassembly includes an aluminum alloy shell, the aluminum alloy shell is provided with a shaft hole at the front end, the aluminum alloy shell is provided with a machine groove at the rear end near the shaft hole, and the aluminum alloy shell is provided with a rear mounting groove at the rear end.

[0009] As the further optimization of the utility model, the shaft hole penetrates through the front end of the aluminum alloy shell, the rear mounting groove penetrates through the rear end of the aluminum alloy shell, the shaft hole, the machine groove and the rear mounting groove are communicated, the front end of the activated carbon column is attached to the rear end of the first rubber ring, and the rear end of the aluminum alloy shell is provided with a threaded hole.

[0010] As the further optimization of the utility model, the motor body is fixedly connected to the inside of the machine groove of the aluminum alloy shell at the lower end through bolts, the outside of the sealed air bag is attached to the inside of the shaft hole of the aluminum alloy shell, and the vane is embedded in the inside of the shaft hole.

[0011] As the further optimization of the utility model, the inside of the metal shell is provided with a mounting hole near the output shaft, the inner ring groove is annular, the outer through-hole penetrates through the outside of the metal shell, the inner ring groove and the outer through-hole are communicated, the inside of the sealed air bag is hollow, and the outer through-hole is communicated with the inside of the sealed air bag.

[0012] As the further optimization of the utility model, wherein: the outer through hole penetrates the rear end of the metal shell, the rear through hole is aligned with the interface front and rear, the rear through hole is communicated with the interface, the interface is communicated with the turning, the slow pressure hole penetrates the upper end of the turning cylinder, and the centrifugal air extraction assembly and the sealing assembly are embedded and installed on the inner side of the shaft hole.

[0013] As the further optimization of the utility model, wherein: the shape of the counterweight block is a cylinder, the outer side of the second rubber ring is attached to the inner side of the turning of the turning cylinder, and one side of the reinforcing rod is fixedly connected with the outer side of the output shaft.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] In the utility model, the protective shell assembly, the sealing assembly and the centrifugal air extraction assembly are arranged, the problem that the existing motor is prone to damp is effectively solved, during the operation of the motor, the sealing air bag is separated from external objects, damage caused by the friction between the sealing air bag and external objects during the operation of the motor and the reduction of the service life are avoided, and the performance and the service life of the motor in a humid environment are effectively ensured.

[0016] Specifically, when the motor is idle, the sealing structure of the aluminum alloy shell and the expansion attachment of the sealing air bag and the water absorption of the activated carbon column in the motor groove prevent the motor groove from being damp and the motor from contacting moisture, when the motor works, the centrifugal air extraction assembly is driven to rotate by the output shaft, the gas in the sealing air bag is extracted under the action of the centrifugal force, the sealing air bag is deformed away from the shaft hole, the abrasion of the sealing air bag during the rotation of the output shaft is reduced, and the service life of the sealing air bag is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the utility model;

[0018] Figure 2 It is a cut open structure schematic view of the aluminum alloy shell of the utility model;

[0019] Figure 3 It is an activated carbon column structure schematic view of the utility model;

[0020] Figure 4 It is a structure schematic view of the A place of the utility model; Figure 3

[0021] Figure 5 It is a cut open structure schematic view of the metal shell of the utility model;

[0022] Figure 6 It is a cut open structure schematic view of the turning cylinder of the utility model.

[0023] ​In the figure: 1, protective shell assembly; 11, aluminum alloy shell; 12, shaft hole; 13, machine groove; 14, rear loading groove; 15, first rubber ring; 16, sleeve shell; 17, activated carbon column;

[0024] 2, motor body; 3, output shaft; 4, fan blade;

[0025] 5, sealing assembly; 51, metal shell; 52, sealing air bag; 53, inner ring groove; 54, outer through hole; 55, rear through hole;

[0026] 6, centrifugal air suction assembly; 61, folded cylinder; 62, reinforcing rod; 63, folding channel; 64, interface; 65, slow pressure hole; 66, spring telescopic rod; 67, counterweight; 68, second rubber ring. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] It should be noted that the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0029] Please refer to Figures 1-6 The present application provides a technical scheme:

[0030] The utility model provides a waterproof and moistureproof type outdoor motor sealing device, including protective shell subassembly 1, motor body 2 and output shaft 3, motor body 2 is fixedly connected in the inside of protective shell subassembly 1, output shaft 3 is installed in the inside of motor body 2, the outside fixed connection of output shaft 3 is fixedly connected with fan blade 4, the outside fixed connection of output shaft 3 is fixedly connected with sealing assembly 5, centrifugal air extraction subassembly 6 is fixedly connected to the rear end of sealing assembly 5, sealing assembly 5 includes metal shell 51, the outside fixed connection of metal shell 51 is fixedly connected with sealed air bag 52, the inside of metal shell 51 is equipped with inner ring groove 53, the inside of metal shell 51 is equipped with outer through -hole 54 near inner ring groove 53, the rear end of metal shell 51 is equipped with rear through -hole 55, centrifugal air extraction subassembly 6 includes zigzag cylinder 61, one side fixed connection of zigzag cylinder 61 is equipped with reinforcing rod 62, the inside of zigzag cylinder 61 is equipped with zigzag 63, the inside of zigzag cylinder 61 is equipped with interface 64 near the front end of zigzag 63, zigzag cylinder 61 upper end is equipped with slow pressure hole 65, the inside fixed connection of zigzag cylinder 61 is equipped with spring telescopic rod 66 near upper end, spring telescopic rod 66 bottom end is fixedly connected with counterweight 67, the outside fixed connection of counterweight 67 is equipped with second rubber ring 68, the rear end of metal shell 51 is fixedly connected with the front end of zigzag cylinder 61, the inside of metal shell 51 is fixedly connected with the outside of output shaft 3.

[0031] As the further implementation of the scheme, the protective shell subassembly 1 includes an aluminum alloy shell 11, the aluminum alloy shell 11 is provided with a shaft hole 12 at the front end, the aluminum alloy shell 11 is provided with a machine groove 13 at the rear end near the shaft hole 12, the aluminum alloy shell 11 is provided with a rear mounting groove 14 at the rear end, the rear mounting groove 14 of the aluminum alloy shell 11 is fixedly connected with a first rubber ring 15 at the inside, the rear end of the aluminum alloy shell 11 is fixedly connected with a sleeve shell 16 through bolts, the sleeve shell 16 is fixedly connected with an activated carbon column 17 at the inside, the shaft hole 12 penetrates through the front end of the aluminum alloy shell 11, the rear mounting groove 14 penetrates through the rear end of the aluminum alloy shell 11, the shaft hole 12, the machine groove 13 and the rear mounting groove 14 are communicated, the front end of the activated carbon column 17 is attached to the rear end of the first rubber ring 15, the rear end of the aluminum alloy shell 11 is provided with a threaded hole, through the above setting, the activated carbon column 17 can dry the inside of the machine groove 13, and the activated carbon column 17 can dry the air entering the inside of the machine groove 13 in the later period, and the activated carbon column 17 can be replaced;

[0032] As the further implementation of the scheme, the motor body 2 is fixedly connected at the lower end in the inside of the machine groove 13 of the aluminum alloy shell 11 through bolts, the outside of the sealed air bag 52 is attached to the inside of the shaft hole 12 of the aluminum alloy shell 11, the fan blade 4 is embedded and installed in the inside of the shaft hole 12, through the above setting, when idle, the sealing of the sealed air bag 52 and the sealing of the first rubber ring 15 can prevent moisture from entering the inside of the machine groove 13 and contacting the motor, and the safety of the motor when idle is ensured;

[0033] As a further implementation of the present scheme, the metal shell 51 is provided with a mounting hole near the inner side of the output shaft 3, the inner ring groove 53 is annular, the outer through hole 54 penetrates the outer side of the metal shell 51, the inner ring groove 53 communicates with the outer through hole 54, the inner side of the sealing air bag 52 is hollow, the outer through hole 54 communicates with the inner side of the sealing air bag 52, the outer through hole 54 penetrates the rear end of the metal shell 51, the rear through hole 55 is aligned with the interface 64 front and back, the rear through hole 55 communicates with the interface 64, the interface 64 communicates with the turning channel 63, the slow pressure hole 65 penetrates the upper end of the turning cylinder 61, and the centrifugal air extraction assembly 6 and the sealing assembly 5 are embedded and installed on the inner side of the shaft hole 12. Through the above setting, when the motor is running, the centrifugal air extraction assembly 6 extracts the gas in the sealing air bag 52 under the action of centrifugal force, so that the sealing air bag 52 is far away from the external object, preventing the sealing air bag 52 from being damaged due to friction;

[0034] As a further implementation of the present scheme, the weight block 67 is in the shape of a cylinder, the outer side of the second rubber ring 68 is fitted with the inner side of the turning channel 63 of the turning cylinder 61, and one side of the reinforcing rod 62 is fixedly connected with the outer side of the output shaft 3. Through the above setting, the resistance of the weight block 67 during movement is reduced, and at the same time, gas is prevented from flowing between the turning cylinder 61 and the weight block 67.

[0035] Work flow: In the idle state of the motor, the motor body 2 is fixed in the inner side of the machine groove 13, the aluminum alloy shell 11 is divided into two halves, the two halves are fixed by bolts, and at the same time, the two halves of the aluminum alloy shell 11 are sealed by a sealing ring, the sleeve 16 is inserted into the inner side of the rear mounting groove 14, and the first rubber ring 15 is used to seal between the aluminum alloy shell 11 and the sleeve 16, the activated carbon column 17 is used to dry the inside of the machine groove 13, and at the same time, the activated carbon column 17 is convenient for drying the air entering the inside of the machine groove 13 in the later period, under the action of the spring telescopic rod 66, the weight block 67 keeps moving towards the interface 64, the second rubber ring 68 plays a sealing role between the weight block 67 and the turning cylinder 61, under the pushing of the weight block 67, the gas in the turning channel 63 at this time flows into the inner ring groove 53 through the interface 64 and the rear through hole 55, the gas in the inner ring groove 53 enters the inside of the sealing air bag 52 through the outer through hole 54, at this time, the sealing air bag 52 expands, the outer side of the sealing air bag 52 is fitted with the inner side of the shaft hole 12 of the aluminum alloy shell 11, so as to realize the prevention of moisture in the inside of the machine groove 13 when the motor is idle, and prevent the motor from contacting with moisture when it is idle;

[0036] In the process of realizing moisture-proof and reducing the wear rate of the sealing air bag 52 in the working state of the motor, the material of the aluminum alloy shell 11 is aluminum alloy, which can absorb the heat inside the machine groove 13 during the use of the motor, thereby playing a certain cooling effect; after the motor body 2 is started, the output shaft 3 rotates, and the output shaft 3 drives the sealing assembly 5, the centrifugal air extraction assembly 6 and the fan blade 4 to rotate as a whole; when the zigzag cylinder 61 rotates, the counterweight block 67 moves away from the output shaft 3 under the action of centrifugal force, and the counterweight block 67 extrudes the spring telescopic rod 66, so that the spring telescopic rod 66 shrinks; at this time, the air in the upper end zigzag channel 63 flows out from the slow pressure hole 65, reducing the resistance when the counterweight block 67 moves; when the counterweight block 67 moves upward, the gas in the lower end zigzag channel 63 is extracted; at this time, the gas in the sealing air bag 52 enters the inside of the zigzag channel 63 through the outer through hole 54, the inner ring groove 53, the rear through hole 55 and the interface 64; at this time, the sealing air bag 52 deforms and tightly adheres to the outside of the metal shell 51; at this time, the sealing air bag 52 is away from the shaft hole 12 of the aluminum alloy shell 11, thereby greatly reducing the wear of the sealing air bag 52 caused by the rotation of the output shaft 3, and improving the service life of the sealing air bag 52; when the output shaft 3 rotates, the external air passes through the activated carbon column 17 in the sleeve shell 16, and the activated carbon column 17 absorbs the moisture in the air, so that the air entering the machine groove 13 is in a dry state; the air flows out through the shaft hole 12, and the effect of heat dissipation of the motor is achieved; by disassembling the sleeve shell 16, the activated carbon column 17 can be replaced, thereby realizing the effect of regular maintenance.

[0037] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A waterproof and moisture-proof type outdoor motor sealing device, comprising a protective shell assembly (1), a motor body (2) and an output shaft (3), characterized in that: The protective shell assembly (1) is fixedly connected with an electric motor body (2) on the inner side, an output shaft (3) is installed in the electric motor body (2), a fan blade (4) is fixedly connected with the output shaft (3) on the outer side, a sealing assembly (5) is fixedly connected with the output shaft (3) on the outer side, and a centrifugal air extraction assembly (6) is fixedly connected with the sealing assembly (5) on the rear end. The sealing assembly (5) comprises a metal shell (51), the metal shell (51) is fixedly connected with a sealing air bag (52) on the outer side, an inner ring groove (53) is formed in the inner side of the metal shell (51), an outer through hole (54) is formed in the inner side of the metal shell (51) close to the inner ring groove (53), a rear through hole (55) is formed in the rear end of the metal shell (51), the centrifugal air extraction assembly (6) comprises a zigzag cylinder (61), the zigzag cylinder (61) is fixedly connected with a reinforcing rod (62) on one side, a zigzag channel (63) is formed in the inner side of the zigzag cylinder (61), an interface (64) is formed in the inner side of the zigzag cylinder (61) close to the front end of the zigzag channel (63), a pressure relief hole (65) is formed in the upper end of the zigzag cylinder (61), a spring telescopic rod (66) is fixedly connected with the inner side of the zigzag cylinder (61) close to the upper end, a counterweight (67) is fixedly connected with the bottom end of the spring telescopic rod (66), and a second rubber ring (68) is fixedly connected with the outer side of the counterweight (67). The rear end of the metal shell (51) is fixedly connected with the front end of the zigzag cylinder (61), and the inner side of the metal shell (51) is fixedly connected with the outer side of the output shaft (3).

2. A waterproof and moisture-proof type outdoor motor sealing device according to claim 1, characterized in that: The protective shell assembly (1) comprises an aluminum alloy shell (11), an axle hole (12) is formed in the front end of the aluminum alloy shell (11), a machine groove (13) is formed in the rear end of the aluminum alloy shell (11) close to the axle hole (12), a rear mounting groove (14) is formed in the rear end of the aluminum alloy shell (11), a first rubber ring (15) is fixedly connected with the inner side of the rear mounting groove (14) formed in the aluminum alloy shell (11), and a sleeve shell (16) is fixedly connected with the rear end of the aluminum alloy shell (11) through bolts, and an activated carbon column (17) is fixedly connected with the inner side of the sleeve shell (16).

3. A waterproof and moisture-proof type outdoor motor sealing device according to claim 2, characterized in that: The axle hole (12) penetrates the front end of the aluminum alloy shell (11), the rear mounting groove (14) penetrates the rear end of the aluminum alloy shell (11), the axle hole (12), the machine groove (13) and the rear mounting groove (14) are communicated, the front end of the activated carbon column (17) is attached to the rear end of the first rubber ring (15), and a threaded hole is formed in the rear end of the aluminum alloy shell (11).

4. A waterproof and moisture-proof type outdoor motor sealing device according to claim 1, characterized in that: The electric motor body (2) is fixedly connected with the inner side of the machine groove (13) formed in the aluminum alloy shell (11) through bolts, the outer side of the sealing air bag (52) is attached to the inner side of the axle hole (12) formed in the aluminum alloy shell (11), and the fan blade (4) is embedded and installed in the inside of the axle hole (12).

5. A waterproof and moisture-proof type outdoor motor sealing device according to claim 1, characterized in that: The metal shell (51) is provided with a mounting hole near the inner side of the output shaft (3), the inner ring groove (53) is annular, the outer through hole (54) penetrates the outer side of the metal shell (51), the inner ring groove (53) is communicated with the outer through hole (54), the sealing air bag (52) is hollow on the inner side, and the outer through hole (54) is communicated with the inner side of the sealing air bag (52).

6. A waterproof and moisture-proof type outdoor motor sealing device according to claim 1, characterized in that: The outer through hole (54) penetrates the rear end of the metal shell (51), the rear through hole (55) is aligned with the interface (64) front and back, the rear through hole (55) is communicated with the interface (64), the interface (64) is communicated with the turning track (63), the slow pressure hole (65) penetrates the upper end of the turning barrel (61), and the centrifugal air extraction assembly (6) and the sealing assembly (5) are embedded and installed on the inner side of the shaft hole (12).

7. A waterproof and moisture-proof type outdoor motor sealing device according to claim 1, characterized in that: The counterweight (67) is in the shape of a cylinder, the outer side of the second rubber ring (68) is attached to the inner side of the turning track (63) of the turning barrel (61), and one side of the reinforcing rod (62) is fixedly connected with the outer side of the output shaft (3).

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