CN219018581U - Waterproof dustproof motor with go out axle seal - Google Patents
Waterproof dustproof motor with go out axle seal Download PDFInfo
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- CN219018581U CN219018581U CN202123381723.5U CN202123381723U CN219018581U CN 219018581 U CN219018581 U CN 219018581U CN 202123381723 U CN202123381723 U CN 202123381723U CN 219018581 U CN219018581 U CN 219018581U
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- sealing
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- waterproof
- rotating shaft
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The utility model discloses a waterproof and dustproof motor with shaft sealing, which comprises a front cover, a machine shell and a rear cover, wherein: the front cover, the shell and the rear cover are mutually combined to form a containing cavity for containing the installation of the rotating shaft; the front cover is provided with a mounting cavity, a sealing stationary ring in interference fit with the front cover is arranged in the mounting cavity, and the other end of the sealing stationary ring is provided with a sealing movable ring; the sealing movable ring is matched with the rotating shaft and rotates freely along with the rotating shaft, and one end of the sealing movable ring is limited by a limiting ring on the rotating shaft, and the other end of the sealing movable ring is attached to the sealing stationary ring; the elastic compensation mechanism is arranged on the sealing movable ring, and the sealing movable ring can elastically deform under the action of the elastic compensation mechanism.
Description
Technical Field
The utility model belongs to the technical field of motors, and particularly relates to a waterproof and dustproof motor with a shaft outlet seal.
Background
The motor is an electromagnetic device for converting or transmitting electric energy according to the law of electromagnetic induction, and the main function of the motor is to generate driving torque as a power source of an electric appliance or various machines.
Traditional motor has the clearance between motor shaft and end cover, and the leakproofness is not good, and the inside condition of dust entering motor often can take place. In addition, the motor is exposed when outdoor use alone, say water booster pump, or the motor is when environment abominable, air humidity, the environment of easily contacting moisture use, lets moisture get into inside the motor easily, and moisture can corrode the spare part of motor and cause the motor short circuit, takes place the incident easily in the use, has brought the hidden danger.
Currently, in order to prevent dust or water from penetrating into the motor and affecting the operation of the motor, rubber gaskets are generally used as sealing waterproof and dustproof structures. The joint of the motor parts is sealed by the rubber ring, thereby achieving the purpose of preventing moisture and dust from entering the motor
However, the research shows that the sealing effect of the rubber gasket is poor, and particularly in the environment with larger wind dust or more rainwater, dust or water can enter the motor to influence the service life of the motor, so that potential safety hazard is caused.
Disclosure of Invention
The utility model aims to provide a waterproof and dustproof motor with a shaft outlet seal, so as to solve the problems in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a waterproof dustproof motor with go out axle seal, includes protecgulum, casing and back lid, wherein:
the front cover, the shell and the rear cover are mutually combined to form a containing cavity for containing the installation of the rotating shaft;
the front cover is provided with a mounting cavity, a sealing stationary ring in interference fit with the front cover is arranged in the mounting cavity, and the other end of the sealing stationary ring is provided with a sealing movable ring;
the sealing movable ring is matched with the rotating shaft and rotates freely along with the rotating shaft, and one end of the sealing movable ring is limited by a limiting ring on the rotating shaft, and the other end of the sealing movable ring is attached to the sealing stationary ring;
the elastic compensation mechanism is arranged on the sealing moving ring, and the sealing moving ring can elastically deform under the action of the elastic compensation mechanism.
Preferably, the front end of the casing is provided with a front cover, the rear end of the casing is provided with a rear cover, and the joints of the two sides of the casing, the front cover and the rear cover are provided with lengthened rabbets.
Preferably, grooves are formed in two sides of the shell, and O-shaped rings are arranged in the grooves.
Preferably, the sealing moving ring can axially move along the rotating shaft under the thrust action of the elastic force compensation mechanism.
Preferably, an auxiliary sealing device is arranged in the middle of the sealing moving ring, and the auxiliary sealing device deforms under external force.
Preferably, after the elastic force compensation mechanism is compressed, the auxiliary sealing device is deformed and wrinkled.
Preferably, the elastic force compensation mechanism is a spring arranged in the middle of the sealing movable ring.
Preferably, the auxiliary sealing device is positioned in the middle of the sealing moving ring and connected with two sides of the sealing moving ring, and the auxiliary sealing device is made of nitrile rubber.
Preferably, the front cover and the rear cover are respectively provided with a mounting groove for accommodating the bearing and limiting the radial direction of the bearing, and the bearing is movably connected with the rotating shaft and supports the bearing.
Preferably, the rear cover is provided with an outlet, and an outlet sealing device is arranged at the outlet.
The waterproof dustproof motor with the shaft sealing function has the technical effects and advantages that:
1. through the arrangement of the sealing movable ring, the sealing movable ring can be matched with the rotating shaft and can freely rotate along with the rotating shaft, and under the action of the elastic force compensation mechanism, the sealing movable ring and the sealing stationary ring can be kept in fit to achieve the leakage blocking effect, so that the leakage phenomenon in the high-speed running process of the rotating shaft is avoided, and the shaft outlet sealing is realized;
2. through the arrangement of the grooves and the O-shaped rings, the O-shaped rings are extruded and deformed during installation to achieve the effect of sealing the shell, water or dust can be prevented from entering the shell of the motor, the waterproof and dustproof performances of the motor are enhanced, the service life of the motor is prolonged, and installation sealing is achieved;
3. through the arrangement of the outgoing line sealing device, the tightness of the motor can be ensured, water or dust is prevented from entering the motor shell, the waterproof and dustproof performances of the motor are enhanced, and the outgoing line sealing is realized.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a cross-sectional view of the present utility model;
FIG. 3 is a schematic diagram of the structure of the present utility model;
fig. 4 is a schematic view showing a specific structure of the seal ring of the present utility model.
In the figure: 1. a front cover; 2. a housing; 3. a rear cover; 4. a receiving chamber; 5. a rotating shaft; 6. sealing the stationary ring; 7. a sealing ring; 8. a mounting groove; 9. a bearing;
11. a mounting cavity;
21. lengthening the spigot; 22. a groove; 23. an O-ring;
31. a wire outlet; 32. an outgoing line sealing device;
51. a limiting ring;
71. an elastic force compensation mechanism; 72. and an auxiliary sealing device.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 4 of the embodiments of the present utility model, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a waterproof and dustproof motor with a shaft seal as shown in fig. 1-4, comprising a front cover 1, a machine shell 2 and a rear cover 3, wherein:
in the utility model, the motor has three sealing structures, namely a shaft outlet sealing structure, a mounting sealing structure and a wire outlet sealing structure. The output shaft seal is rotary dynamic seal, and the sealing effect is the most difficult to ensure.
In the utility model, the clearance between the front cover 1 and the rotating shaft 5 is ensured to be smaller than 0.1mm, so that the primary sealing is realized.
The front cover 1, the machine shell 2 and the rear cover 3 are mutually combined to form a containing cavity 4 for containing the installation of the rotating shaft 5.
The front cover 1 is provided with an installation cavity 11, a sealing static ring 6 in interference fit with the front cover 1 is arranged in the installation cavity 11, the sealing static ring 6 is tightly matched with the front cover 1, an elastic sealing gasket is arranged on the contact surface of the sealing static ring 6 and the front cover 1, and the elastic sealing gasket can ensure the sealing effect of the contact surface.
The tight-fit sealing static ring 6 is fixed with the front cover 1, a certain gap is kept between the tight-fit sealing static ring and the rotating shaft 5, and the rotating shaft 5 can be effectively prevented from contacting the sealing static ring 6 in the axial moving process by the arrangement of the gap, so that the sealing effect is influenced.
The other end of the sealing stationary ring 6 is provided with a sealing movable ring 7, the sealing movable ring 7 is matched with the rotating shaft 5 and rotates freely along with the rotating shaft 5, the contact surface of the sealing movable ring 7 and the rotating shaft 5 is provided with an elastic sealing gasket, and the elastic sealing gasket can ensure the sealing effect of the contact surface.
One end of the sealing movable ring 7 is limited by the limiting ring 51 on the rotating shaft 5, the other end of the sealing movable ring is attached to the sealing stationary ring 6 to form a relative sliding contact surface, an elastic compensation mechanism 71 is arranged on the sealing movable ring 7, the sealing movable ring 7 can elastically deform under the action of the elastic compensation mechanism 71, the sliding contact surface is kept attached under the action of the elastic force of the elastic compensation mechanism 71 to achieve the waterproof and dustproof effects, and the shaft outlet sealing of the motor is realized.
Specifically, the front end of casing 2 is equipped with protecgulum 1, the casing 2 rear end is equipped with back lid 3, is equipped with the mounting hole respectively on protecgulum 1 and the back lid 3, and casing 2 both sides are equipped with the screw that corresponds the setting each other with the mounting hole on protecgulum 1 and the back lid 3, can screw up casing 2 respectively with protecgulum 1 and back lid 3 through outside bolt, reaches the effect of installation.
The two sides of the shell 2 are provided with the lengthened spigot 21 at the joint with the front cover 1 and the rear cover 3, and the matching length of the shell 2 with the front cover 1 and the rear cover 3 can be lengthened by arranging the lengthened spigot 21, so that the installation seal of the motor is further realized.
Specifically, the casing 2 both sides are equipped with recess 22, and recess 22 sets up in the outside both sides of casing 2, and recess 22 corresponds protecgulum 1 and back lid 3 setting respectively, just be equipped with O type circle 23 in the recess 22, O type circle 23 can take place elastic deformation under external force, screw up the installation in place with casing 2 in front of the motor lid 1, back lid 3 screw up with casing 2 and hug closely the installation in place, O type circle 23 receives the extrusion deformation under external force to reach the sealed effect to casing 2 both sides installation department, can prevent that water or dust from getting into in the motor casing 2, has strengthened the waterproof dustproof performance of motor to prolonged the life of motor, realized the installation seal of motor.
In the utility model, the O-shaped ring 23 is made of friction-resistant oil-resistant silicon rubber, so that the service life of the O-shaped ring 23 can be well ensured.
Specifically, the sealing moving ring 7 can axially move along the rotating shaft 5 under the thrust action of the elastic force compensation mechanism 71, after the motor is installed, the elastic force compensation mechanism 71 can generate thrust to prop the sealing moving ring 7 against the sealing stationary ring 6, the sealing moving ring 7 and the sealing stationary ring 6 can be kept in fit to achieve the leakage blocking effect, the sealing moving ring 7 and the sealing stationary ring 6 are perfectly sealed, and the thrust generated by the elastic force compensation mechanism 71 can control the sealing moving ring 7 to axially move along the rotating shaft 5, so that the influence of disordered movement of the sealing moving ring 7 on the motor operation is prevented.
Specifically, the elastic force compensation mechanism 71 is a spring disposed in the middle of the sealing moving ring 7, the elastic force compensation mechanism 71 is mainly used for compressing and generating thrust to support the sealing moving ring 7 and the sealing static ring 6 together after the motor is installed, so that the sealing moving ring 7 and the sealing static ring 6 can be kept in contact to achieve the leakage blocking effect, the sealing moving ring 7 and the sealing static ring 6 can be perfectly sealed, and an elastic column or an elastic block can be adopted on the premise of the same effect.
Specifically, the elastic force compensation mechanism 71 can generate thrust to push the sealing moving ring 7 along the axial direction of the rotating shaft 5, the elastic force compensation mechanism 71 pushes two sides of the sealing moving ring 7 to expand the auxiliary sealing device 72 arranged in the middle of the sealing moving ring 7, when the elastic force compensation mechanism 71 is compressed, the auxiliary sealing device 72 deforms under external force, the auxiliary sealing device 72 arranged in the middle of the sealing moving ring 7 deforms and folds,
specifically, the auxiliary sealing device 72 is located in the middle of the sealing moving ring 7 and connected to two sides of the sealing moving ring 7, and the auxiliary sealing device 72 is made of nitrile rubber, so that the nitrile rubber has good oil resistance, high wear resistance and good heat resistance, and the auxiliary sealing device 72 is made of nitrile rubber, so that the service life of the auxiliary sealing device 72 can be well guaranteed.
Specifically, the front cover 1 and the rear cover 3 are respectively provided with a mounting groove 8 for accommodating the bearing 9 and radially limiting the bearing 9, the inner diameter of the mounting groove 8 is adapted to the outer diameter of the bearing 9, the mounting groove 8 is of a circular structure, the mounting groove 8 provides a radially limited pressing-in channel for the bearing 9, so that the bearing 9 is radially limited and can only be axially placed, and the bearing 9 can be linearly moved in the mounting groove 8, so that the bearing 9 cannot deviate in the mounting groove 8, and the bearing 9 can be accurately and rapidly placed in the mounting groove 8.
The bearing 9 is movably connected with the rotating shaft 5 and supports the bearing 9, the bearing 9 is radially limited through the mounting groove 8, the coaxiality of the bearing 9 and the rotating shaft 5 can be effectively ensured, the coaxiality and the accuracy of the sleeving of the rotating shaft 5 and the bearing 9 are further ensured, the qualification rate of products is ensured, and the reliability and the safety of the motor are further improved.
Specifically, the rear cover 3 is provided with an outlet 31, the outlet 31 can allow the lead to go in and go out, a thickened rubber sleeve can be coated outside the lead according to the requirement, and an outlet sealing device 32 is arranged at the outlet 31.
In the utility model, the wire outlet sealing device 32 consists of an elongated sealing ring, a metal gasket, a tightening nut and a lead wire, wherein the elongated sealing ring is arranged between the wire outlet 31 and the thickening rubber sleeve, the elongated sealing ring is sleeved outside the thickening rubber sleeve, the tightness of the motor can be ensured through the arrangement of the elongated sealing ring, the corrosion of water and humid gas to the motor and the lead wire can be prevented, the metal gasket sleeved on the thickening rubber sleeve is placed on the elongated sealing ring, then the wiring screw sleeved on the thickening rubber sleeve is arranged on the metal gasket, and through the arrangement of the metal gasket, the loosening of the wiring screw can be effectively prevented, and then the wiring screw is screwed down as much as possible, so that the gap between the elongated sealing ring and the thickening rubber sleeve is blocked firmly, the tightness of the wire outlet 31 of the motor can be fully ensured, the normal operation of the motor can be protected, the motor is not easy to oxidize in a humid working environment, the water and the humid gas can be effectively prevented from affecting the operation of the motor, and the wire outlet sealing of the motor can be realized.
According to the utility model, the lengthened sealing ring is extruded, deformed and tensioned through the action of the jacking nut and the metal gasket, so that a gap between the lead and the lengthened sealing ring is sealed, the lead can be fixed, the lead cannot be influenced by shaking of the lead wire, the lead wire is not easy to pull and fall off, the sealing effect of the wire outlet 31 is ensured, and meanwhile, waterproof glue can be added at the thread of the jacking nut according to requirements, so that the wire outlet sealing of the motor is further enhanced.
In the present utility model, the bearing 9 is a deep groove ball bearing 9.
Working principle: this waterproof dustproof motor with play shaft seal, after the motor is installed, elasticity compensation mechanism 71 on the sealed rotating ring 7 is compressed, after elasticity compensation mechanism 71 compresses, the auxiliary seal at sealed rotating ring 7 middle part can take place deformation and produce the fold under external force, sealed rotating ring 7 one end is spacing by epaxial spacing ring 51 of pivot 5, sealed rotating ring 7 other end can be under the thrust effect of elasticity compensation mechanism 71 along pivot 5 axial motion, elasticity compensation mechanism 71 can produce thrust and support sealed rotating ring 7 and sealed quiet ring 6 and lean on together, form the contact surface of relative slip, and make the slip contact surface keep laminating and reach waterproof dirt-proof effect, realize the play shaft seal of motor.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (10)
1. The utility model provides a waterproof dustproof motor with go out shaft seal, includes protecgulum (1), casing (2) and back lid (3), its characterized in that:
the front cover (1), the machine shell (2) and the rear cover (3) are mutually combined to form a containing cavity (4) for containing the installation of the rotating shaft (5);
the front cover (1) is provided with a mounting cavity (11), a sealing stationary ring (6) in interference fit with the front cover (1) is arranged in the mounting cavity (11), and the other end of the sealing stationary ring (6) is provided with a sealing movable ring (7);
the sealing movable ring (7) is matched with the rotating shaft (5) and rotates freely along with the rotating shaft (5), one end of the sealing movable ring (7) is limited by a limiting ring (51) on the rotating shaft (5), and the other end of the sealing movable ring is attached to the sealing stationary ring (6);
an elastic compensation mechanism (71) is arranged on the sealing moving ring (7), and the sealing moving ring (7) can be elastically deformed under the action of the elastic compensation mechanism (71).
2. A waterproof and dustproof motor with a shaft seal as defined in claim 1, wherein: the front end of the shell (2) is provided with a front cover (1), the rear end of the shell (2) is provided with a rear cover (3), and the joints of the two sides of the shell (2) with the front cover (1) and the rear cover (3) are provided with lengthened rabbets (21).
3. A waterproof and dustproof motor with a shaft seal as defined in claim 1, wherein: grooves (22) are formed in two sides of the shell (2), and O-shaped rings (23) are arranged in the grooves (22).
4. A waterproof and dustproof motor with a shaft seal as defined in claim 1, wherein: the sealing moving ring (7) can axially move along the rotating shaft (5) under the thrust action of the elastic force compensation mechanism (71).
5. A waterproof and dustproof motor with a shaft seal as defined in claim 1, wherein: an auxiliary sealing device (72) is arranged in the middle of the sealing moving ring (7), and the auxiliary sealing device (72) deforms under external force.
6. A waterproof and dustproof motor with a shaft seal as defined in claim 1, wherein: after the elastic force compensation mechanism (71) is compressed, the auxiliary sealing device (72) is deformed and wrinkled.
7. A waterproof and dustproof motor with a shaft seal as defined in claim 1, wherein: the elastic force compensation mechanism (71) is a spring arranged in the middle of the sealing movable ring (7).
8. A waterproof and dustproof motor with a shaft seal according to claim 5 or 6, characterized in that: the auxiliary sealing device (72) is positioned in the middle of the sealing moving ring (7) and connected with two sides of the sealing moving ring (7), and the auxiliary sealing device (72) is made of nitrile rubber.
9. A waterproof and dustproof motor with a shaft seal as defined in claim 1, wherein: the front cover (1) and the rear cover (3) are respectively provided with a mounting groove (8) for accommodating the mounting of the bearing (9) and limiting the radial direction of the bearing (9), and the bearing (9) is movably connected with the rotating shaft (5) and supports the bearing (9).
10. A waterproof and dustproof motor with a shaft seal as defined in claim 1, wherein: the rear cover (3) is provided with an outlet (31), and an outlet sealing device (32) is arranged at the outlet (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123381723.5U CN219018581U (en) | 2021-12-29 | 2021-12-29 | Waterproof dustproof motor with go out axle seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123381723.5U CN219018581U (en) | 2021-12-29 | 2021-12-29 | Waterproof dustproof motor with go out axle seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219018581U true CN219018581U (en) | 2023-05-12 |
Family
ID=86237946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123381723.5U Active CN219018581U (en) | 2021-12-29 | 2021-12-29 | Waterproof dustproof motor with go out axle seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219018581U (en) |
-
2021
- 2021-12-29 CN CN202123381723.5U patent/CN219018581U/en active Active
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