CN218760989U

CN218760989U - Waterproof rotating shaft

Info

Publication number: CN218760989U
Application number: CN202223040199.XU
Authority: CN
Inventors: 史文明; 史义红; 谢永光
Original assignee: Fujian Heying Machinery Co ltd
Current assignee: Fujian Heying Machinery Co ltd
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2023-03-28
Anticipated expiration: 2032-11-16

Abstract

The utility model discloses in relate to rotation axis technical field, disclose a waterproof rotation axis, including rotating main shaft and fixed axle sleeve, the fixed axle is sheathe in and is equipped with waterproof chamber and rotation chamber, rotating main shaft runs through waterproof chamber and rotation chamber perpendicularly in proper order, the one end protrusion that rotating main shaft is close to waterproof chamber is equipped with annular turntable, rotating main shaft's the other end is equipped with the spliced pole, it is equipped with rolling bearing to rotate the intracavity, the waterproof intracavity of bottom surface embedding of annular turntable, annular turntable's top surface protrusion in fixed axle sleeve's upper surface, the interval has between annular turntable's circumference side and the side in waterproof chamber, waterproof chamber's side is equipped with out the water through-hole, waterproof chamber and the rotation chamber between be equipped with first oil blanket, the utility model discloses a waterproof chamber and first oil blanket can play good water-proof effects, guarantee rotating main shaft's normal rotation simultaneously.

Description

Waterproof rotating shaft

Technical Field

The utility model discloses in relate to rotation axis technical field, especially a waterproof rotation axis.

Background

The rotation axis is a mechanical setting that is used for connecting driving motor and output rotary motion, when the output side position of rotation axis was in the operational environment of water, need carry out waterproof sealing to the output side of rotation axis, traditional seal structure, in order to guarantee sealed water-proof effects, mostly adopt contact seal structure such as multiple sealing ring to seal, multiple contact seal ring and rotation axis contact, stronger frictional force has, the sealing washer is worn and torn seriously easily, need often to be changed, and too many sealing washer settings also hinder the rotatory influence of rotation axis easily, the influence changes the smooth and easy nature of rotation axis drive.

SUMMERY OF THE UTILITY MODEL

Therefore, a waterproof rotating shaft is needed to be provided, and the problems that due to the arrangement of multiple sealing rings of an existing rotating shaft, the sealing rings are seriously abraded and the rotation of the rotating shaft is influenced are solved.

In order to achieve the purpose, the utility model provides a waterproof rotating shaft, which comprises a rotating main shaft and a fixed shaft sleeve, wherein the fixed shaft sleeve is provided with a waterproof cavity and a rotating cavity, the rotating main shaft sequentially and vertically penetrates through the waterproof cavity and the rotating cavity, one end of the rotating main shaft, which is close to the waterproof cavity, is convexly provided with an annular turntable, the other end of the rotating main shaft is provided with a connecting column, a rotating bearing is arranged in the rotating cavity,

the bottom surface embedding of annular carousel is waterproof intracavity, the top surface protrusion in the upper surface of fixed axle sleeve of annular carousel, the interval has between the circumference side of annular carousel and the side in waterproof chamber, the side in waterproof chamber is equipped with out the water through-hole, waterproof chamber and rotation are equipped with first oil blanket circle between the chamber.

Furthermore, the water outlet through hole comprises a first channel and a second channel which are connected, and the diameter of the second channel is larger than that of the first channel. The joint of the first channel and the second channel is provided with a step fall to avoid the backflow of water flow.

Further, a straight-through external thread pagoda joint is installed on the second channel. Is convenient to be connected with an external water pipe and is used for guiding water to flow out.

Further, the side of the waterproof cavity is an arc-shaped side. The arc-shaped side face is convenient to be thrown onto the side face of the waterproof cavity, and water is gathered.

The structure of the waterproof chamber can be varied,

as shown in figure 2, the side surface of the waterproof cavity is a vertical plane, and water drops are not conveniently gathered on the vertical side surface

In the attached drawing 3, the side surface of the waterproof cavity is an arc-shaped side surface, and the water outlet through hole is positioned at the position with the largest diameter of the side surface of the waterproof cavity, so that water can be guided out conveniently.

Further, be equipped with annular isolation boss between waterproof chamber and the rotation chamber, the bottom surface side of annular carousel keeps off with isolation boss and connects mutually, the inboard edge of keeping apart the boss is equipped with annular ladder recess, first oil blanket circle is fixed in the ladder recess. The ladder recess is used for the fixed of first oil blanket circle, further plays waterproof sealing effect.

Further, the rotating cavity is provided with two rotating bearings and a radial locking nut, a bearing inner spacer sleeve and a bearing outer spacer sleeve which are sleeved with each other are arranged between the two rotating bearings, the bearing inner spacer sleeve is sleeved on the rotating main shaft, the radial locking nut is in threaded connection with the rotating main shaft, and the radial locking nut is abutted against an inner ring of the rotating bearing close to the radial locking nut. The bearing inner spacer and the bearing outer spacer are used for supporting the two rotating bearings, the bearing inner spacer and the bearing outer spacer respectively support inner rings and outer rings of the two rotating bearings, and the radial locking nut is used for locking to enable the inner rings of the rotating bearings and the rotating main shaft to be relatively fixed.

Furthermore, the side of the fixed shaft sleeve, which is far away from the waterproof cavity, is provided with an end cover, the inner layer surface of the end cover is provided with an annular boss, the annular boss is embedded into the rotating cavity and is abutted against the outer ring of the rotating bearing, which is close to the annular boss, the side of the fixed shaft sleeve, which is far away from the waterproof cavity, is provided with a sealing groove, the sealing groove is provided with a sealing ring, and the end cover is detachably mounted on the side of the rotating cavity. The sealing ring seals the installation gap between the end cover and the fixed shaft sleeve.

In the embodiment, the end cover and the fixed shaft sleeve are fixed through a bolt fastener.

Furthermore, the connecting column penetrates through the end cover, a second oil seal ring is arranged on the end cover, and the second oil seal ring is located on the periphery of the connecting column penetrating through the end cover. The second oil seal ring carries out the oil blanket to the clearance of spliced pole, prevents that the dust from getting into and rotates the intracavity.

The technical scheme has the following beneficial effects:

the utility model discloses in, set up waterproof chamber and rotation chamber at fixed bearing housing, the rolling bearing who rotates the intracavity is used for supporting the rotation of rotating main shaft, and waterproof intracavity sets up out the water through hole, and when water permeated waterproof intracavity by the gap between annular turntable and the fixed axle sleeve top surface, on being got rid of waterproof chamber side under the effect of rotating main shaft centrifugal force, and discharged by the water through hole to play water-proof effects, and first oil seal circle can further play isolated waterproof effect, the utility model discloses in, can play good water-proof effects through first oil seal circle of the waterproof chamber cooperation of centrifugation, and can not influence the rotation of rotating main shaft.

Drawings

FIG. 1 is a block diagram of a waterproof rotating shaft according to an embodiment;

fig. 2 is a sectional structure view of the waterproof rotary shaft according to the embodiment.

Fig. 3 is a structural view of another embodiment of the side of the waterproof chamber.

Description of reference numerals:

1. rotating the main shaft; 11. an annular turntable; 12. connecting columns; 2. fixing the shaft sleeve; 21. a waterproof cavity; 22. a rotation chamber; 23. a water outlet through hole; 231. a first channel; 232. a second channel; 24. a straight-through external thread pagoda joint; 25. isolating the boss; 26. a stepped recess; 27. sealing the groove; 28. a seal ring; 3. an end cap; 31. an annular boss; 4. a rotating bearing; 5. a first oil seal ring; 6. a radial lock nut; 7. a bearing inner spacer sleeve; 8. a bearing outer spacer sleeve; 9. a second oil seal ring;

Detailed Description

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Referring to fig. 1-3, the embodiment discloses a waterproof rotating shaft, which includes a rotating spindle 1, a fixed shaft sleeve 2 and an end cover 3, the fixed shaft sleeve 2 is provided with a waterproof cavity 21 and a rotating cavity 22, the rotating spindle 1 sequentially and vertically penetrates through the waterproof cavity 21 and the rotating cavity 22, one end of the rotating spindle 1 close to the waterproof cavity 21 is convexly provided with an annular turntable 11, the other end of the rotating spindle 1 is provided with a connecting column 12, the rotating cavity 22 is internally provided with a rotating bearing 4, the side surface of the rotating cavity 22 close to the end cover 3 is open, and the end cover 3 is arranged on the side surface of the rotating cavity 22.

In the waterproof chamber 21 of bottom surface embedding of annular turntable 11, the top surface protrusion in fixed axle sleeve 2's of annular turntable 11 upper surface has the interval between the circumference side of annular turntable 11 and the side in waterproof chamber 21, and the side in waterproof chamber 21 is equipped with water outlet hole 23, is equipped with first oil blanket ring 5 between waterproof chamber 21 and the rotation chamber 22.

The outlet hole 23 includes a first passage 231 and a second passage 232 connected to each other, and the second passage 232 has a larger diameter than the first passage 231. The junction of the first channel 231 and the second channel 232 has a step head to avoid the backflow of water. A straight-through externally threaded pagoda shaped fitting 24 is mounted on the second passageway 232. Is convenient to be connected with an external water pipe and is used for guiding water to flow out.

The side of the waterproof chamber 21 is an arc side. The arc-shaped side surface is convenient to be thrown onto the side surface of the waterproof cavity 21, and the water is gathered.

The structure of the waterproof chamber 21 can be various, as shown in fig. 2, the side of the waterproof chamber 21 is a vertical plane, and the water drops are not conveniently gathered on the vertical side, while in fig. 3, the side of the waterproof chamber 21 is an arc side, and the water outlet through hole 23 is located at the position where the diameter of the side of the waterproof chamber 21 is the largest, so that the water is conveniently guided out.

An annular isolation boss 25 is arranged between the waterproof cavity 21 and the rotating cavity 22, the side edge of the bottom surface of the annular rotary table 11 is in blocking connection with the isolation boss 25, an annular stepped groove 26 is arranged on the inner side edge of the isolation boss 25, and the first oil seal ring 5 is fixed in the stepped groove 26. The stepped groove 26 is used for fixing the first oil seal ring 5, and further has a waterproof sealing effect.

The rotating cavity 22 is provided with two rotating bearings 4 and a radial locking nut 6, a bearing inner spacer 7 and a bearing outer spacer 8 which are sleeved with each other are arranged between the two rotating bearings 4, the bearing inner spacer 7 is sleeved on the rotating main shaft 1, the radial locking nut 6 is in threaded connection with the rotating main shaft 1, and the radial locking nut 6 is abutted with an inner ring of the rotating bearing 4 which is close to the radial locking nut 6. The bearing inner spacer 7 and the bearing outer spacer 8 are used for supporting the two rotary bearings 4, the bearing inner spacer 7 and the bearing outer spacer 8 support inner rings and outer rings of the two rotary bearings 4 respectively, and the radial locking nut 6 is used for locking so that the inner rings of the rotary bearings 4 and the rotary main shaft 1 are relatively fixed.

The inner layer surface of the end cover 3 is provided with an annular boss 31, the annular boss 31 is embedded into the rotating cavity 22 and is abutted against the outer ring of the rotating bearing 4 close to the annular boss 31, the side surface of the fixed shaft sleeve 2 far away from the waterproof cavity 21 is provided with a sealing groove 27, the sealing groove 27 is provided with a sealing ring 28, and the end cover 3 is detachably mounted on the side surface of the rotating cavity 22. The packing 28 seals the installation gap between the end cap 3 and the stationary sleeve 2. The end cover 3 is detachably arranged, so that the installation of the rotating bearing 4 is facilitated.

In the embodiment, the end cover 3 and the fixed shaft sleeve 2 are fixed through a bolt fastener.

The connecting column 12 penetrates through the end cover 3, a second oil seal ring 9 is arranged on the end cover 3, and the second oil seal ring 9 is located on the periphery of the connecting column 12 penetrating through the end cover 3. The second oil seal ring 9 seals the gap of the connecting column 12 to prevent dust from entering the rotating cavity 22.

The utility model discloses in, set up waterproof chamber 21 and rotation chamber 22 at fixed bearing cover, the rolling bearing 4 that rotates in the chamber 22 is used for supporting the rotation of rotating main shaft 1, sets up out water through-hole 23 in the waterproof chamber 21, and when water permeated waterproof chamber 21 by the gap between annular turntable 11 and the 2 top surfaces of fixed axle sleeve, was got rid of on waterproof chamber 21 side under the effect of the centrifugal force of rotating main shaft 1 to discharge by water through-hole 23, thereby play water-proof effects, and first oil blanket ring 5 can further play isolated waterproof effect, the utility model discloses in, can play good water-proof effects through 21 first oil blanket rings 5 of centrifugal waterproof chamber cooperation, and can not influence the rotation of rotating main shaft 1.

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 terminal 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 terminal. Without further limitation, an element defined by the phrases "comprising 8230; \8230;" or "comprising 8230; \8230;" does not exclude the presence of additional elements in a process, method, article, or terminal device that comprises the element. Further, in this document, "greater than," "less than," "more than," and the like are understood to not include the present numbers; the terms "above", "below", "within" and the like are to be understood as including the number.

Although the embodiments have been described, once the basic inventive concept is obtained, other changes and modifications can be made to the embodiments by those skilled in the art, so that the above description is only an embodiment of the present invention, and not intended to limit the scope of the invention, and all changes of the equivalent structure or equivalent flow path using the contents of the specification and the drawings or directly or indirectly using other related technical fields are also included in the scope of the present invention.

Claims

1. The utility model provides a waterproof rotation axis, a serial communication port, including rotating spindle and fixed axle sleeve, the fixed axle is sheathe in and is equipped with waterproof chamber and rotation chamber, rotating spindle runs through waterproof chamber and rotation chamber perpendicularly in proper order, the one end protrusion that rotating spindle is close to waterproof chamber is equipped with annular carousel, rotating spindle's the other end is equipped with the spliced pole, it is equipped with rolling bearing to rotate the intracavity, the waterproof intracavity of bottom surface embedding of annular carousel, the top surface protrusion in fixed axle sleeve's of annular carousel upper surface, the interval has between the circumference side of annular carousel and the side in waterproof chamber, the side in waterproof chamber is equipped with out the water through-hole, waterproof chamber and rotation are equipped with first oil seal circle between the chamber.

2. The waterproof rotating shaft according to claim 1, wherein the outlet hole includes a first passage and a second passage connected to each other, and the second passage has a larger diameter than the first passage.

3. The waterproof rotary shaft according to claim 2, wherein a straight-through male screw-threaded pagoda joint is installed on said second passage.

4. The waterproof rotating shaft according to claim 1, wherein the side surface of the waterproof chamber is an arc-shaped side surface.

5. The waterproof rotating shaft according to claim 1, wherein an annular isolation boss is provided between the waterproof chamber and the rotating chamber, a side edge of the bottom surface of the annular turntable is in contact with the isolation boss, an inner side edge of the isolation boss is provided with an annular stepped groove, and the first oil seal ring is fixed in the stepped groove.

6. The waterproof rotating shaft according to claim 1, wherein the rotating cavity is provided with two rotating bearings and a radial lock nut, a bearing inner spacer and a bearing outer spacer are provided between the two rotating bearings, the bearing inner spacer is sleeved on the rotating main shaft, the radial lock nut is screwed with the rotating main shaft, and the radial lock nut abuts against an inner ring of the rotating bearing adjacent to the radial lock nut.

7. The waterproof rotating shaft according to claim 6, wherein the side of the fixed sleeve remote from the waterproof chamber is provided with an end cap, the inner surface of the end cap is provided with an annular boss, the annular boss is embedded in the rotating chamber and abuts against the outer ring of the rotating bearing adjacent to the annular boss, the side of the fixed sleeve remote from the waterproof chamber is provided with a sealing groove, the sealing groove is provided with a sealing ring, and the end cap is detachably mounted on the side of the rotating chamber.

8. The waterproof rotating shaft according to claim 7, wherein the connecting column penetrates through the end cap, and a second oil seal ring is provided on the end cap and is located on the periphery of the connecting column penetrating through the end cap.