CN212969275U

CN212969275U - Motor waterproof construction

Info

Publication number: CN212969275U
Application number: CN202021529688.XU
Authority: CN
Inventors: 李江澎; 吴林友
Original assignee: Changzhou Honest Electric Co ltd
Current assignee: Changzhou Honest Electric Co ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-04-13
Anticipated expiration: 2030-07-29

Abstract

The utility model relates to a motor waterproof construction belongs to drive arrangement technical field. Comprises a motor rotating shaft, a mechanical seal pressing sleeve, oil seal ceramics, an upper seal rubber ring, a waterproof end cover, a lower seal rubber gasket and an oil seal bearing, the utility model is provided with the waterproof end cover, and a corresponding rubber seal ring limiting groove is arranged inside the end cover, the rubber sealing ring is sleeved on the rotating shaft through interference fit installation between the limiting groove and the rubber sealing ring, so as to play a primary waterproof effect, in addition, the utility model is also provided with oil sealing ceramics, a layer of fluid dynamic pressure oil film is formed between the ceramic lip of the oil seal and the interface of the rotating shaft, the oil film not only can play a role in lubrication, but also can play a role in oil seal water prevention, meanwhile, the utility model also arranges a rubber seal ring and an oil seal bearing in a limit groove below the waterproof end cover, the waterproof performance of the motor is improved through interference fit assembly and oil seal dual arrangement, and the motor has a wide application prospect.

Description

Motor waterproof construction

Technical Field

The utility model relates to a motor waterproof construction belongs to drive arrangement technical field.

Background

At present, a certain gap is reserved between an end cover and a rotor of a motor in the prior art, the rotor is driven by a rotating shaft to rotate relative to the end cover, external water easily enters an outer rotor fan through the gap between the end cover and the rotor, the potential leakage hazard is caused, meanwhile, the leaked water contacts a bearing, the bearing is easily damaged, and the normal use of the outer rotor fan is further influenced.

In view of the above-mentioned drawbacks, the present designer actively makes research and innovation to create a waterproof structure of a motor, so that the waterproof structure has industrial value.

Disclosure of Invention

In order to solve the technical problem, the utility model aims at providing a motor waterproof construction. The utility model discloses a set up waterproof end cover to at the inside corresponding rubber seal spacing groove that sets up of end cover, through carrying out the interference fit installation between spacing groove and the rubber seal, and establish the rubber seal cover in the pivot, play preliminary waterproof effect, in addition the utility model discloses still set up oil blanket pottery, through forming one deck fluid dynamic pressure oil film between oil blanket pottery lip and the pivot interface, this layer of oil film not only can play the lubrication action, can also play the waterproof effect of oil blanket, simultaneously, the utility model discloses still set up rubber seal and oil blanket bearing in waterproof end cover below spacing groove, through the dual setting improvement motor waterproof performance of interference fit assembly and oil blanket, wide application prospect has.

The utility model relates to a motor waterproof structure, which comprises a motor rotating shaft, a mechanical seal pressing sleeve, oil seal ceramics, an upper seal rubber ring, a waterproof end cover, a lower seal rubber gasket and an oil seal bearing,

the surface of the motor rotating shaft is sequentially sleeved with a mechanical seal pressing sleeve, oil seal ceramics, an upper seal rubber ring, a waterproof end cover, a lower seal rubber gasket and an oil seal bearing from top to bottom;

the upper part of the upper sealing rubber ring is provided with an oil seal ceramic limiting groove, and the oil seal ceramic is clamped in the oil seal ceramic limiting groove;

the waterproof end cover is characterized in that a cylindrical sleeve is arranged on the upper surface of the waterproof end cover, an upper sealing rubber ring limiting groove is formed in the sleeve, the upper sealing rubber ring is clamped in the upper sealing rubber ring limiting groove, a through hole is formed in the central shaft portion of the waterproof end cover, a lower sealing rubber gasket limiting groove and an oil seal bearing limiting groove are sequentially formed in the bottom surface of the waterproof end cover from top to bottom, and the lower sealing rubber gasket and the oil seal bearing are clamped in the lower sealing rubber gasket limiting groove and the oil seal bearing limiting groove respectively.

Furthermore, the upper sealing rubber ring limiting groove, the lower sealing rubber gasket limiting groove and the oil seal bearing limiting groove are coaxially arranged.

Furthermore, the upper sealing rubber ring and the upper sealing rubber ring limiting groove are clamped and installed through interference fit.

Further, the lower sealing rubber gasket and the lower sealing rubber gasket limiting groove are clamped and installed through interference fit.

Furthermore, the upper sealing rubber ring and the lower sealing rubber gasket are both circular rings and are made of silicon rubber materials.

Further, the mechanical sealing pressing sleeve is made of stainless steel materials.

By the scheme, the invention at least has the following advantages:

(1) the utility model discloses a motor waterproof construction is through setting up waterproof end cover to set up the rubber seal spacing groove in the end cover inside, through carrying out interference fit installation between spacing groove and the rubber seal, and establish the rubber seal cover in the pivot, play preliminary sealed waterproof effect;

(2) the motor waterproof structure of the utility model is also provided with the oil seal ceramic, and a layer of fluid dynamic pressure oil film is formed between the oil seal ceramic lip part and the rotating shaft interface, so that the oil film not only can play a lubricating role, but also can play a role of oil seal waterproof;

(3) the utility model discloses a motor waterproof construction has still set up rubber seal and oil blanket bearing in waterproof end cover below spacing groove, improves motor waterproof performance through interference fit assembly and the dual setting of oil blanket, and the existence of oil blanket bearing can keep rotating stably between motor shaft and the waterproof end cover simultaneously, and the mechanical part gap that prevents the oscillation and arouses produces to avoid the occurence of water leakage accident, have wide application prospect.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood and to be implemented in accordance with the content of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate a certain embodiment of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is an explosion structure diagram of the waterproof structure of the motor of the present invention;

fig. 2 is a self-contained front view of the waterproof structure of the motor of the present invention;

fig. 3 is a schematic view of the waterproof end cap and the interior of the waterproof structure of the motor of the present invention;

fig. 4 is a schematic top view of the waterproof end cap in the waterproof structure of the motor of the present invention;

fig. 5 is a schematic bottom view of the waterproof end cap in the waterproof structure of the motor of the present invention;

fig. 6 is a schematic perspective view of an upper sealing rubber ring in the waterproof structure of the motor of the present invention;

fig. 7 is a schematic view of a top-down assembled three-dimensional structure of an upper sealing rubber ring and an oil sealing ceramic in the waterproof structure of the motor of the present invention;

fig. 8 is a schematic view of the bottom assembled three-dimensional structure of the upper sealing rubber ring and the oil sealing ceramic in the waterproof structure of the motor of the present invention;

wherein, in the figure, 1, a motor rotating shaft; 2. mechanically sealing the compression sleeve; 3. oil seal ceramic; 4. an upper sealing rubber ring; 5. a waterproof end cap; 6. a lower sealing rubber gasket; 7. an oil seal bearing; 8. a sleeve; 9. a through hole; 10. an upper sealing rubber ring limiting groove; 11. a lower sealing rubber gasket limiting groove; 12. an oil seal bearing limiting groove; 13. oil seal ceramic limiting groove.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1 to 8, the waterproof structure for a motor according to a preferred embodiment of the present invention includes a motor shaft 1, a mechanical seal pressing sleeve 2, an oil seal ceramic 3, an upper seal rubber ring 4, a waterproof end cover 5, a lower seal rubber washer 6 and an oil seal bearing 7, wherein the mechanical seal pressing sleeve 2, the oil seal ceramic 3, the upper seal rubber ring 4, the waterproof end cover 5, the lower seal rubber washer 6 and the oil seal bearing 7 made of stainless steel are sequentially sleeved on the surface of the cylindrical motor shaft 1 from top to bottom; the upper surface of the upper sealing rubber ring 4 is provided with an inwards concave oil seal ceramic limiting groove 13, and the oil seal ceramic 3 is clamped in the oil seal ceramic limiting groove 13; the upper surface of the waterproof end cover 5 is provided with a cylindrical sleeve 8, the upper sealing rubber ring limiting groove 10 with an inward concave is arranged inside the sleeve 8, the upper sealing rubber ring 4 is installed in the upper sealing rubber ring limiting groove 10 through interference fit clamping, the central shaft part of the waterproof end cover 5 is provided with a through hole 9 matched with the diameter of the motor rotating shaft 1, the bottom surface of the waterproof end cover 5 is sequentially provided with a lower sealing rubber gasket limiting groove 11 and an oil seal bearing limiting groove 12 from top to bottom, the lower sealing rubber gasket 6 and the oil seal bearing 7 are respectively clamped inside the lower sealing rubber gasket limiting groove 11 and the oil seal bearing limiting groove 12, the upper sealing rubber ring limiting groove 10, the lower sealing rubber gasket limiting groove 11 and the oil seal bearing limiting groove 12 are coaxially arranged. The lower sealing rubber gasket 6 and the lower sealing rubber gasket limiting groove 11 are clamped and installed through interference fit. The upper sealing rubber ring 4 and the lower sealing rubber gasket 6 are both circular rings and are made of silicon rubber materials.

The working principle of the utility model is as follows:

when the utility model is used in practice, firstly the oil seal ceramic 3 is clamped and installed in the oil seal ceramic limiting groove 13 on the upper surface of the upper seal rubber ring 4, then the upper seal rubber ring 4 is clamped and installed in the upper seal rubber ring limiting groove 10 arranged in the sleeve 8 through interference fit, the oil seal ceramic 3 is kept upward, then the lower seal rubber gasket 6 is clamped and installed in the lower seal rubber gasket limiting groove 11 arranged on the bottom surface of the waterproof end cover 5 through interference fit, after the lower seal rubber gasket 6 is installed, the oil seal bearing 7 is clamped and installed in the oil seal bearing limiting groove 12 at the bottom of the lower seal rubber gasket limiting groove 11, after the installation is finished, the motor rotating shaft 1 is upwards inserted into the through hole 9 from the bottom of the waterproof end cover 5, then the mechanical seal pressing sleeve 2 is sleeved from the top end of the motor rotating shaft 1 and is pressed downwards until the upper seal rubber ring 4 and the oil seal ceramic 3 are fixed and pressed in the sleeve 8, the installation of the whole motor waterproof mechanism is completed, when the motor runs in a moist or watery environment after the installation is completed, because the utility model is provided with the waterproof end cover 5, and the corresponding lower sealing rubber gasket limiting groove 11 and the oil sealing bearing limiting groove 12 are arranged inside the waterproof end cover 5, the interference fit installation is carried out between the lower sealing rubber gasket limiting groove 11 and the oil sealing bearing limiting groove 12 as well as the upper sealing rubber ring 4 and the lower sealing rubber gasket 6, and the oil sealing ceramic 3 is sleeved on the motor rotating shaft 1 to play a primary waterproof effect, in addition, the utility model is also provided with the oil sealing ceramic 3, a layer of fluid dynamic pressure oil film is formed between the lip part of the oil sealing ceramic 3 and the interface of the motor rotating shaft 1, the oil film not only can play a lubricating role, but also can play a waterproof effect of the oil sealing, and simultaneously, the utility model also arranges the oil sealing bearing 7 in the limiting groove below the waterproof, the waterproof performance of the motor is improved through interference fit assembly and oil seal dual arrangement, and the motor has a wide application prospect.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a motor waterproof construction, includes that motor shaft (1), mechanical seal compress tightly cover (2), oil blanket pottery (3), go up sealing rubber circle (4), waterproof end cover (5), lower sealing rubber packing ring (6) and oil blanket bearing (7), its characterized in that:

the surface of the motor rotating shaft (1) is sequentially sleeved with a mechanical seal pressing sleeve (2), oil seal ceramics (3), an upper seal rubber ring (4), a waterproof end cover (5), a lower seal rubber gasket (6) and an oil seal bearing (7) from top to bottom;

the upper part of the upper sealing rubber ring (4) is provided with an oil seal ceramic limiting groove (13), and the oil seal ceramic (3) is clamped in the oil seal ceramic limiting groove (13);

the waterproof end cover (5) upper surface is equipped with cylindric sleeve (8), and sleeve (8) inside is equipped with upper seal rubber circle spacing groove (10), and upper seal rubber circle (4) joint is in upper seal rubber circle spacing groove (10), waterproof end cover (5) central axial region is equipped with through hole (9), waterproof end cover (5) bottom surface is from last to being equipped with down packing ring spacing groove (11) and oil blanket bearing spacing groove (12) down in proper order, packing ring (6) and oil blanket bearing (7) joint are inside packing ring spacing groove (11) and oil blanket bearing spacing groove (12) down respectively.

2. The waterproof structure of the motor according to claim 1, wherein: the upper sealing rubber ring limiting groove (10), the lower sealing rubber gasket limiting groove (11) and the oil seal bearing limiting groove (12) are coaxially arranged.

3. The waterproof structure of the motor according to claim 1, wherein: the upper sealing rubber ring (4) and the upper sealing rubber ring limiting groove (10) are clamped and installed through interference fit.

4. The waterproof structure of the motor according to claim 1, wherein: the lower sealing rubber gasket (6) and the lower sealing rubber gasket limiting groove (11) are clamped and installed through interference fit.

5. The waterproof structure of the motor according to claim 1, wherein: the upper sealing rubber ring (4) and the lower sealing rubber gasket (6) are both circular rings and are made of silicon rubber materials.

6. The waterproof structure of the motor according to claim 1, wherein: the mechanical sealing pressing sleeve (2) is made of stainless steel materials.