CN218243176U

CN218243176U - Motor shaft sealing structure

Info

Publication number: CN218243176U
Application number: CN202222638144.2U
Authority: CN
Inventors: 林广新; 林国友; 林子华; 陈国霞
Original assignee: Zhaoqing Xinda Hardware Machinery Co ltd
Current assignee: Zhaoqing Xinda Hardware Machinery Co ltd
Priority date: 2022-10-09
Filing date: 2022-10-09
Publication date: 2023-01-06
Anticipated expiration: 2032-10-09

Abstract

The utility model discloses a motor shaft seal structure, which comprises a housin, screw fixedly connected with end cover is passed through in the left side of casing, the inner chamber of casing is provided with the drive shaft, the left side of drive shaft is passed through the bearing and is extended to the left side of end cover, the left side of end cover is seted up flutedly, recess inner chamber's left side sliding connection has the sealing ring. The utility model discloses a set up the sealing ring and inlay the inner chamber of establishing with the recess with the oil blanket to closely laminate with the junction of recess inner chamber, can make the oil blanket form a sealed space with the surface of drive shaft, meanwhile, through the reaction force that sets up the spring, make the spring drive the movable block move in opposite directions, the movable block drives the stopper and moves in opposite directions, make the stopper peg graft with the junction of spacing groove, it is spacing to carry out the sealing ring, avoid the not hard up condition to appear in the sealing ring, improve its sealed effect, through setting up above structure, the better advantage of sealed effect has been possessed.

Description

Motor shaft sealing structure

Technical Field

The utility model relates to a motor shaft seal technical field specifically is a motor shaft seal structure.

Background

The motor is a device for realizing electric energy conversion or transmission according to an electromagnetic induction law, generally comprises a shell and an output shaft, the output shaft partially extends out of the shell, a stator and a rotor are arranged in the shell, the rotor is fixedly connected with the output shaft, under the electromagnetic driving, the rotor rotates relative to the stator and outputs mechanical energy, because the shell is internally provided with an electromagnetic driving environment, in order to ensure the energy conversion efficiency and the working stability, the sealing property between the output shaft and the shell is vital, meanwhile, because the working is that the rotating speed of the output shaft relative to the shell is higher, the sealing between the output shaft and the shell is also the difficult point of motor design, the existing motor shaft end sealing structure has the defect of poor sealing effect, and therefore the use requirement of a user cannot be met.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model aims to provide a motor shaft seal structure has possessed the better advantage of sealed effect, has solved current motor shaft seal structure and has had the relatively poor problem of sealed effect.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a motor shaft seal structure, includes the casing, the left side of casing is through screw fixedly connected with end cover, the inner chamber of casing is provided with the drive shaft, the left side of drive shaft extends to the left side of end cover through the bearing, the left side of end cover is seted up flutedly, the left side sliding connection of recess inner chamber has the sealing ring, the right side fixedly connected with oil blanket of sealing ring, the right side of oil blanket closely laminates with the junction of recess internal surface, the cavity has all been seted up at the top and the bottom of end cover internal surface, the equal fixedly connected with spring in one side that the cavity inner chamber is close to mutually, the equal fixedly connected with movable block of one end that the spring was kept away from mutually, the equal fixedly connected with stopper in one side that the movable block is close to mutually, the spacing groove has all been seted up with the top and the bottom of sealing ring, the one end that the stopper is close to mutually all extends to the inner chamber of recess and pegs graft with the junction of spacing groove internal surface.

Preferably, the side of the moving block far away from the moving block is fixedly connected with a guide rod, the side of the cavity far away from the moving block is provided with a guide groove, and the outer surface of the guide rod is connected with the inner surface of the guide groove in a sliding manner.

Preferably, a moving rod is fixedly connected to the left side of the moving block, and the left side of the moving rod extends to the left side of the end cover.

Preferably, the upper end and the lower end of the left side of the end cover are both provided with a moving groove, and the outer surface of the moving rod is in sliding connection with the inner surface of the moving groove.

Preferably, the right side of the moving block is fixedly connected with a sliding block, one end of the cavity far away from the right side of the cavity is provided with a sliding groove, and the outer surface of the sliding block is connected with the inner surface of the sliding groove in a sliding mode.

Preferably, the top and the bottom of the left side of the sealing ring are both fixedly connected with a pulling plate, and the joint of the inner surface of the sealing ring and the outer surface of the driving shaft is in sliding connection.

Preferably, the outer surface of the limiting block is connected with the inner surface of the spring in a sliding mode, and the outer surface of the moving block is connected with the inner surface of the cavity in a sliding mode.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a set up the sealing ring and inlay the inner chamber of establishing with the recess with the oil blanket, and closely laminate with the junction of recess inner chamber, can make the oil blanket form a sealed space with the surface of drive shaft, meanwhile, through the reaction force that sets up the spring, make the spring drive the movable block and remove in opposite directions, the movable block drives the stopper and removes in opposite directions, make the stopper peg graft with the junction of spacing groove, it is spacing to carry out the sealing ring, avoid the not hard up condition to appear in the sealing ring, improve its sealed effect, through setting up above structure, the better advantage of sealed effect has been possessed, the current motor shaft has the relatively poor problem of sealed effect, thereby can be better satisfy user's user demand.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front sectional view of the housing structure of the present invention;

FIG. 3 is an enlarged view of the structure A in FIG. 2 according to the present invention;

fig. 4 is a perspective view of the sealing ring structure of the present invention.

In the figure: 1. a housing; 2. an end cap; 3. a drive shaft; 4. a groove; 5. a seal ring; 6. oil sealing; 7. a cavity; 8. a spring; 9. a moving block; 10. a limiting block; 11. a limiting groove; 12. a guide rod; 13. a guide groove; 14. a travel bar; 15. a moving groove; 16. a slider; 17. a chute; 18. and (5) lifting the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, a motor shaft sealing structure comprises a housing 1, an end cover 2 is fixedly connected to the left side of the housing 1 through screws, a driving shaft 3 is arranged in an inner cavity of the housing 1, the left side of the driving shaft 3 extends to the left side of the end cover 2 through a bearing, a groove 4 is formed in the left side of the end cover 2, a sealing ring 5 is slidably connected to the left side of the inner cavity of the groove 4, an oil seal 6 is fixedly connected to the right side of the sealing ring 5, the right side of the oil seal 6 is tightly attached to the joint of the inner surface of the groove 4, a cavity 7 is formed in the top and the bottom of the inner surface of the end cover 2, a spring 8 is fixedly connected to the side, close to the inner cavity of the cavity 7, a moving block 9 is fixedly connected to the end, a limiting block 10 is fixedly connected to the side, a limiting groove 11 is formed in the top and the bottom of the sealing ring 5, the end, close to the limiting block 10 extends to the inner cavity of the groove 4 and is inserted into the joint of the inner surface of the limiting groove 11, by arranging the sealing ring 5 and the oil seal 6 to be embedded in the inner cavity of the groove 4 and tightly attached to the joint of the inner cavity of the groove 4, a sealed space can be formed between the oil seal 6 and the outer surface of the driving shaft 3, and at the same time, through the arrangement of the counterforce of the spring 8, the spring 8 drives the movable block 9 to move oppositely, the movable block 9 drives the limiting block 10 to move oppositely, the connecting part of the limiting block 10 and the limiting groove 11 is inserted and connected, the sealing ring 5 is limited, the loosening of the sealing ring 5 is avoided, the sealing effect is improved, through setting up above structure, possessed sealed better advantage of effect, solved current motor shaft seal structure and had sealed the relatively poor problem of effect to can be better satisfy user's user demand.

Specifically, the equal fixedly connected with guide bar 12 in one side that the movable block 9 kept away from mutually, guide way 13 has all been seted up to one side that the cavity 7 inner chamber kept away from mutually, and the surface of guide bar 12 and the internal surface sliding connection of guide way 13 through setting up guide bar 12 and guide way 13, have made things convenient for to lead movable block 9, improve its stability when removing.

Specifically, the moving rod 14 is fixedly connected to the left side of the moving block 9, the left side of the moving rod 14 extends to the left side of the end cover 2, and the moving block 9 is convenient to move by the arrangement of the moving rod 14.

Specifically, the moving grooves 15 have been all seted up at the left upper and lower both ends of end cover 2, and the surface of carriage release lever 14 and the internal surface sliding connection of moving groove 15 through setting up moving groove 15, have made things convenient for and have led to carriage release lever 14.

Specifically, the right side fixedly connected with slider 16 of movable block 9, spout 17 has all been seted up to the one end that cavity 7 right side was kept away from mutually, and slider 16's surface and the internal surface sliding connection of spout 17 have made things convenient for to lead movable block 9 through setting up slider 16 and spout 17, also carry on spacingly to it simultaneously.

Specifically, the top and the bottom of the left side of the sealing ring 5 are fixedly connected with the lifting plate 18, the inner surface of the sealing ring 5 is connected with the outer surface of the driving shaft 3 in a sliding mode, and the sealing ring 5 is convenient to move by arranging the lifting plate 18.

Specifically, the outer surface of the limiting block 10 is connected with the inner surface of the spring 8 in a sliding mode, and the outer surface of the moving block 9 is connected with the inner surface of the cavity 7 in a sliding mode.

The working principle is as follows:

during the use, earlier with end cover 2 through the junction fixed connection of screw and casing 1, then, inlay sealing ring 5 and oil blanket 6 and establish the inner chamber with recess 4, and closely laminate with the junction of recess 4 inner chamber, make oil blanket 6 and the surface of drive shaft 3 form a sealed space, seal drive shaft 3 with the junction of bearing through sealed oil, meanwhile, through the reaction force of spring 8, make spring 8 drive movable block 9 and remove in opposite directions, movable block 9 drives stopper 10 and removes in opposite directions, make stopper 10 peg graft with the junction of spacing groove 11, it is spacing to sealing ring 5, avoid sealing ring 5 the not hard up condition to appear, improve its sealed effect, when needs are dismantled sealing ring 5, drive movable block 9 with carriage release lever 14 and move back to back, stretch spring 8, make stopper 10 keep away from spacing groove 11, at this moment, it can to drive sealing ring 5 through carrying and pulling board 18 and take out the device, structure more than setting up has possessed the advantage that sealed effect is better, the current motor shaft has the problem that sealed effect, thereby can be better, user's demand for use can be satisfied better.

The standard parts used in the present application document can be purchased from the market, and can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts the conventional means of mature bolt, rivet, welding and the like in the prior art, the machines, parts and equipment adopt the conventional models in the prior art, the control mode is automatically controlled by a controller, the control circuit of the controller can be realized by simple programming of technicians in the field, the control circuit belongs to the common knowledge in the field, and the present application document is mainly used for protecting mechanical devices, so the control mode and the circuit connection are not explained in detail in the present application.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a motor shaft seal structure, includes casing (1), its characterized in that: the improved oil seal structure is characterized in that an end cover (2) is fixedly connected to the left side of the shell (1) through a screw, a driving shaft (3) is arranged in an inner cavity of the shell (1), the left side of the driving shaft (3) extends to the left side of the end cover (2) through a bearing, a groove (4) is formed in the left side of the end cover (2), a sealing ring (5) is slidably connected to the left side of the inner cavity of the groove (4), a right side oil seal (6) of the sealing ring (5) is fixedly connected with the right side of the oil seal (6) and is tightly attached to the joint of the inner surface of the groove (4), a cavity (7) is formed in the top and the bottom of the inner surface of the end cover (2), a spring (8) is fixedly connected to one side of the inner cavity of the cavity (7) close to each other, a moving block (9) is fixedly connected to one end of the spring (8), a limiting block (10) is fixedly connected to one side of the moving block (9) close to each other, a limiting groove (11) is formed in the top and the bottom of the sealing ring (5), and one end of the limiting block (10) close to the inner cavity of the groove (4) extends to the inner cavity of the inner surface of the limiting groove (11).

2. The motor shaft seal structure of claim 1, wherein: the side, far away from each other, of the moving block (9) is fixedly connected with a guide rod (12), the side, far away from each other, of the inner cavity of the cavity (7) is provided with a guide groove (13), and the outer surface of the guide rod (12) is connected with the inner surface of the guide groove (13) in a sliding mode.

3. The motor shaft seal structure of claim 1, wherein: the left side of the moving block (9) is fixedly connected with a moving rod (14), and the left side of the moving rod (14) extends to the left side of the end cover (2).

4. The motor shaft seal structure of claim 3, wherein: the upper end and the lower end of the left side of the end cover (2) are both provided with a moving groove (15), and the outer surface of the moving rod (14) is connected with the inner surface of the moving groove (15) in a sliding mode.

5. The motor shaft seal structure of claim 1, wherein: the right side of the moving block (9) is fixedly connected with a sliding block (16), one end of the right side of the cavity (7) far away from the sliding block is provided with a sliding groove (17), and the outer surface of the sliding block (16) is in sliding connection with the inner surface of the sliding groove (17).

6. The motor shaft seal structure of claim 1, wherein: the top and the bottom on the left side of the sealing ring (5) are fixedly connected with a lifting plate (18), and the joint of the inner surface of the sealing ring (5) and the outer surface of the driving shaft (3) is in sliding connection.

7. The motor shaft seal structure of claim 1, wherein: the outer surface of the limiting block (10) is connected with the inner surface of the spring (8) in a sliding mode, and the outer surface of the moving block (9) is connected with the inner surface of the cavity (7) in a sliding mode.