Motor sealing structure

Abstract

The utility model discloses a motor sealing structure which comprises an outer fixing sleeve, an inner attaching sleeve is arranged in the outer fixing sleeve, annular grooves are symmetrically formed in the inner wall of the outer fixing sleeve, a plurality of evenly-distributed balls are arranged in the annular grooves, limiting sleeves are symmetrically arranged on the outer wall of the inner attaching sleeve, and the limiting sleeves are arranged on the outer wall of the inner attaching sleeve. The limiting sleeve extends into the annular groove to abut against the balls, and an oiling assembly matched with the annular groove is arranged on the outer wall of the outer fixing sleeve. The device has the beneficial effects that by arranging the oiling assembly, lubricating oil can be conveniently added to the balls in the annular groove subsequently, abrasion between the balls and the limiting sleeve when the inner attaching sleeve rotates along with the motor driving shaft is prevented, and the oiling assembly can rapidly convey the lubricating oil into the annular groove through cooperation of the oil storage tank and the oiling groove; and a filter screen in the oiling assembly can filter the lubricating oil, and impurities are prevented from entering the annular groove.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor sealing technical field, concretely related to a motor sealing structure. BACKGROUND

[0002] The motor is widely used in various industries as the power source of electrical appliances and various machines, such as household ventilation appliances using the motor to drive the fan blade to rotate. Since the motor realizes the conversion of electric quantity and mechanical energy, the protection ability of the motor itself is particularly important when the motor is in an open space. The protection of the motor mainly refers to the sealing effect between the base (housing) and the end cover, the sealing effect between the rotating shaft and the outside or the rotating shaft and the bearing, and the sealing effect between the bearing and the bearing chamber of the end cover.

[0003] According to the motor sealing structure disclosed by Chinese patent CN202321556846.4, the outer surface of the inner sealing ring can be filled with lubricating oil when the sealing structure is in use, which reduces the friction between the inner sealing ring and the heat-conducting sealing sleeve, thereby reducing the energy loss when the motor rotates, and the lubricating oil can improve the sealing performance of the sealing structure and improve the use effect of the sealing structure. The existing motor sealing structure is relatively troublesome when adding lubricating oil inside the inner sealing ring located inside the heat-conducting sealing sleeve.

[0004] For the problems in the related art, there is no effective solution at present. UTILITY MODEL CONTENTS

[0005] In view of the problems in the related art, the utility model provides a motor sealing structure to overcome the above technical problems existing in the prior art.

[0006] Therefore, the utility model adopts the following specific technical solutions:

[0007] A motor sealing structure comprises an outer fixing sleeve, an inner adhering sleeve is arranged in the outer fixing sleeve, symmetrical annular grooves are formed in the inner wall of the outer fixing sleeve, a plurality of uniformly distributed rolling balls are arranged in the annular grooves, symmetrical limiting sleeves are arranged on the outer wall of the inner adhering sleeve, the limiting sleeves extend into the annular grooves and abut against the rolling balls, and an oil adding assembly matched with the annular grooves is arranged on the outer wall of the outer fixing sleeve.

[0008] Preferably, a connecting disc is arranged on one side of the outer fixing sleeve, and a plurality of uniformly distributed mounting holes are formed in one side of the connecting disc.

[0009] Preferably, symmetrical key grooves are formed in the inner wall of the inner adhering sleeve.

[0010] Preferably, the rolling balls are in rolling connection with the outer fixing sleeve.

[0011] As preferred, the oiling assembly comprises an oil storage tank provided on the outer fixed sleeve, an oiling pipe provided at the top end of the oil storage tank, and a pipe cover threadedly connected to the top end of the oiling pipe.

[0012] As preferred, a filter screen is provided in the oiling pipe, and the pipe cover is threadedly connected to the oiling pipe.

[0013] As preferred, the top end of the oil storage tank is provided with symmetrically arranged lead screws, and the bottom ends of the lead screws are connected to the stopper matched with the oiling groove in the oil storage tank.

[0014] As preferred, the oil storage tank is provided with screw holes matched with the lead screws.

[0015] The oiling assembly is provided to facilitate the subsequent addition of lubricating oil to the rolling balls in the annular groove, prevent the rolling balls from being abraded by the limiting sleeve when the inner lining sleeve rotates with the motor driving shaft, and enable the oiling assembly to quickly deliver the lubricating oil to the annular groove through the cooperation of the oil storage tank and the oiling groove. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0017] Figure 1 is a schematic diagram of the overall structure of a motor sealing structure according to an embodiment of the present application;

[0018] Figure 2 is a right view of a motor sealing structure according to an embodiment of the present application;

[0019] Figure 3 is a cross-sectional view of a motor sealing structure according to an embodiment of the present application;

[0020] Figure 4 is Figure 3 is a local enlarged schematic diagram of position A in FIG.

[0021] In the drawings:

[0022] 1, outer fixed sleeve; 2, inner adhering sleeve; 3, annular groove; 4, ball; 5, limiting sleeve; 6, connecting disc; 7, mounting hole; 8, key groove; 9, oil storage tank; 10, oil filling pipe; 11, pipe cover; 12, oil filling groove; 13, filter screen; 14, screw rod; 15, plugging plug. DETAILED DESCRIPTION

[0023] To further illustrate the embodiments, the utility model provides the drawings, these drawings are part of the utility model disclosure, it mainly used to illustrate the embodiment, and can cooperate with the relevant description of the description to explain the operation principle of the embodiment, cooperate with reference to these contents, the person skilled in the art should be able to understand other possible implementation ways and the advantages of the utility model, the components in the drawing are not drawn according to scale, and similar component symbols are usually used to represent similar components.

[0024] According to the embodiment of the utility model, a motor sealing structure is provided.

[0025] Embodiment one;

[0026] As Figures 1-4 shown, according to the motor sealing structure of the utility model embodiment, including outer fixed sleeve 1, the inner adhering sleeve 2 is equipped in outer fixed sleeve 1, the annular groove 3 of symmetry is set up in outer fixed sleeve 1 inner wall, the ball 4 of several even distribution is equipped in annular groove 3, the limiting sleeve 5 of symmetry is equipped with in the outer wall of inner adhering sleeve 2, the limiting sleeve 5 extends to the annular groove 3 with ball 4 and is in contact, the oil filling assembly of matching with the annular groove 3 is equipped with in the outer wall of outer fixed sleeve 1.

[0027] Embodiment two;

[0028] As Figures 1-4As shown, including the outer fixed sleeve 1, the inner sleeve 2 is provided in the outer fixed sleeve 1, the inner wall of the outer fixed sleeve 1 is provided with a symmetrical annular groove 3, the annular groove 3 is provided with a plurality of uniformly distributed ball 4, the outer wall of the inner sleeve 2 is provided with a symmetrical limiting sleeve 5, the limiting sleeve 5 extends into the annular groove 3 and is in contact with the ball 4, the outer wall of the outer fixed sleeve 1 is provided with an oiling assembly matched with the annular groove 3. The outer fixed sleeve 1 is provided with a connecting disc 6, and a plurality of uniformly distributed mounting holes 7 are formed in one side of the connecting disc 6. The inner wall of the inner sleeve 2 is provided with a symmetrical key groove 8. The ball 4 is in rolling connection with the outer fixed sleeve 1. The oiling assembly comprises an oil tank 9 provided on the outer wall of the outer fixed sleeve 1, an oiling pipe 10 provided at the top of the oil tank 9, a pipe cover 11 matched with the oiling pipe 10, and an oiling groove 12 formed in the outer fixed sleeve 1 and communicated with the annular groove 3 and the oil tank 9. The oiling pipe 10 is provided with a filter screen 13, and the pipe cover 11 is in threaded connection with the oiling pipe 10. The top of the oil tank 9 is provided with a symmetrical screw rod 14, and the bottom end of the screw rod 14 is connected with a sealing plug 15 matched with the oiling groove 12 in the oil tank 9. The oil tank 9 is provided with a threaded hole matched with the screw rod 14.

[0029] In actual application, the motor drive shaft penetrates the inner sleeve 2, the limiting key on the motor drive shaft is inserted into the key groove 8 on the inner wall of the inner sleeve 2, then the outer fixed sleeve 1 is connected and fixed with the motor shell through the connecting disc 6, the inner sleeve 2 is in contact with the outer wall of the motor drive shaft to prevent dust from entering the motor through the gap between the motor drive shaft and the motor shell, when the motor drive shaft rotates, the inner sleeve 2 rotates, when it is necessary to add lubricating oil to the annular groove 3, the lubricating oil can be poured into the oil tank 9 through the oiling pipe 10 for storage, the filter screen 13 in the oiling pipe 10 can filter the impurities in the lubricating oil, when the annular groove 3 is filled with oil, the screw rod 14 is rotated to drive the sealing plug 15 to move upward, at this time the oiling groove 12 is communicated with the oil tank 9, the lubricating oil flows into the annular groove 3 through the oiling groove 12, after the oiling is completed, the screw rod 14 is reversely rotated to drive the sealing plug 15 to move downward to block the oiling groove 12, the oiling assembly is convenient for subsequent addition of lubricating oil to the ball in the annular groove, prevents wear between the ball and the limiting sleeve when the inner sleeve rotates with the motor drive shaft, and the oiling assembly can quickly deliver the lubricating oil to the annular groove through the cooperation of the oil tank and the oiling groove, the filter screen in the oiling assembly can filter the lubricating oil to prevent impurities from entering the annular groove.

[0030] In summary, by means of the above technical scheme of the utility model, the oiling assembly is arranged to facilitate subsequent addition of lubricating oil to the rolling balls in the annular groove, prevent the rolling balls from being abraded with the limiting sleeve when the inner lining sleeve rotates with the motor driving shaft, and the oiling assembly can quickly deliver the lubricating oil into the annular groove through cooperation of the oil tank and the oiling groove, and the filter screen in the oiling assembly can filter the lubricating oil to prevent impurities from entering the annular groove.

[0031] The above merely describes preferred embodiments of the utility model and is not intended to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An electric machine seal structure, characterized by, The utility model provides a kind of oiling assembly, including outer fixed sleeve (1), the inner adhering sleeve (2) is equipped in the outer fixed sleeve (1), the annular groove (3) of symmetric setting is opened in the inner wall of outer fixed sleeve (1), the annular groove (3) is equipped with several evenly distributed ball (4), the outer wall of the inner adhering sleeve (2) is equipped with symmetric setting limiting sleeve (5), the limiting sleeve (5) extends into the annular groove (3) and is in abutment with the ball (4), the outer wall of outer fixed sleeve (1) is equipped with the oiling assembly that is matched with the annular groove (3).

2. A motor seal structure according to claim 1, wherein The outer fixed sleeve (1) is equipped with connecting disc (6) on one side, the connecting disc (6) is opened with several evenly distributed mounting holes (7) on one side.

3. A motor seal as claimed in claim 1, wherein The inner adhering sleeve (2) is opened with symmetric setting keyway (8) in inner wall.

4. A motor seal structure according to claim 1, wherein The ball (4) is connected with the outer fixed sleeve (1) rolling.

5. A motor seal as claimed in claim 1, wherein, The oiling assembly includes the oil tank (9) that the outer wall of outer fixed sleeve (1) is equipped with, the oil tank (9) top is equipped with oiling pipe (10), the oiling pipe (10) top is equipped with pipe cover (11) matched with it, the outer fixed sleeve (1) is opened with oiling groove (12) respectively being communicated with the annular groove (3) and the oil tank (9).

6. A motor seal structure according to claim 5, wherein The oiling pipe (10) is equipped with filter screen (13), and the pipe cover (11) is threadedly connected with the oiling pipe (10).

7. A motor seal structure according to claim 5, wherein The oil tank (9) top is equipped with symmetric setting screw rod (14), and the screw rod (14) bottom extends into the oil tank (9) and is connected with the plugging plug (15) matched with the oiling groove (12).

8. A motor seal structure according to claim 7, wherein The oil tank (9) is opened with screw hole matched with the screw rod (14).

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