CN218347791U

CN218347791U - Sealed rotating shaft

Info

Publication number: CN218347791U
Application number: CN202222029419.2U
Authority: CN
Inventors: 朱金东; 林小伟
Original assignee: Tianjin Yiheng Technology Development Co ltd
Current assignee: Tianjin Yiheng Technology Development Co ltd
Priority date: 2022-08-03
Filing date: 2022-08-03
Publication date: 2023-01-20
Anticipated expiration: 2032-08-03

Abstract

The utility model discloses a sealed rotation axis, which comprises a mounting bas, the inside both sides of mount pad all are provided with the bearing, the inboard middle part of bearing is provided with the transmission shaft, be provided with sealing mechanism between inside and the transmission shaft of mount pad, sealing mechanism includes cavity, solid fixed ring, sealing washer, recess, tighrening ring, the cavity has been seted up at the inboard middle part of mount pad, the inside both sides of cavity are all fixed and are provided with solid fixed ring, gu fixed ring outside fixed surface is provided with the sealing washer. The utility model discloses excellent in use effect can seal the transmission shaft through sealing mechanism, can form an inclosed storage space simultaneously between solid fixed ring to can conveniently carry out the storage of fluid, thereby can conveniently absorb the heat that the sealing washer friction produced, transmit through fluid afterwards, disperse away by mount pad outside surface again, so can effectively dispel the heat to the sealing washer, thereby can effectively improve the life of sealing washer.

Description

Sealed rotating shaft

Technical Field

The utility model relates to a sealed rotation axis technical field specifically is a sealed rotation axis.

Background

Usually, a transmission rotating shaft is generally designed on mechanical equipment, while some rotating shafts are immersed in some liquid or in a high-dust environment for dust prevention, sealing operation is often required to be performed on the rotating shafts, and because the shaft is a rotating body, in order to ensure that the rotating shafts do not leak liquid, a sealing ring is generally arranged at the position of the rotating shafts for performing rotary sealing.

However, the sealing ring generally needs to work in a high-temperature, high-speed and high-friction environment during rotary sealing, which provides a high requirement for the reliability of the sealing ring, and according to the sealing rotary shaft and the sealing device of the chinese patent with the application number of 201920734684.6, a special chromium oxide wear-resistant anti-friction layer is only arranged on the surface of the sealing ring to improve the wear-resistant effect of the sealing ring during design, a good heat dissipation structure is not designed, but the friction of the sealing ring during working can generate large heat, and at the moment, if the environment in which the sealing ring works is a high-temperature environment or is not used in liquid and only plays a dustproof role in a precision instrument, the heat is difficult to dissipate, so that the service life of the sealing ring is easily shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sealed rotation axis to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a sealed rotation axis, includes the mount pad, the inside both sides of mount pad all are provided with the bearing, bearing inboard middle part is provided with the transmission shaft, be provided with sealing mechanism between the inside and transmission shaft of mount pad, sealing mechanism includes cavity, solid fixed ring, sealing washer, recess, tighrening ring, the cavity has been seted up at the inboard middle part of mount pad, the inside both sides of cavity are all fixed and are provided with solid fixed ring, gu fixed ring outside fixed surface is provided with the sealing washer, laminate each other between sealing washer and the outside surface transmission shaft outside surface, sealing washer outside fixed surface is provided with the recess, the inside movable sleeve of recess is equipped with the tighrening ring.

Preferably, the cross section of the sealing ring is J-shaped, and the sealing fit between the lower end surface and the transmission shaft can be continuously kept after the lower end surface is partially abraded through the J-shaped sealing ring, so that the service life of the sealing ring of the device can be further prolonged; meanwhile, when the J-shaped sealing ring is provided with high-pressure liquid or gas extrusion sealing rings on the outer side, the sealing effect can be improved by utilizing the external extrusion sealing ring, and the J-shaped sealing ring is provided with two symmetrical designs, so that the sealing effect of the sealing ring can be effectively ensured no matter which sides of the left side and the right side of the transmission shaft are subjected to high pressure; on the contrary, if pressure is applied to extrude from the inside of the J-shaped sealing ring, the J-shaped sealing ring can be opened and is not tightly attached to the transmission shaft any more.

Preferably, a plurality of radiating grooves are uniformly formed in the surface of the outer side of the mounting seat, and the surface area of the mounting seat can be increased through the radiating grooves, so that heat transferred by oil can be conveniently dissipated as soon as possible.

Preferably, mount pad upper end outside fixed surface is provided with the feed liquor pipe, mount pad lower extreme outside fixed surface is provided with the fluid-discharge tube, feed liquor pipe, fluid-discharge tube set up between solid fixed ring, can let in lubricated fluid to the regional inside that forms between solid fixed ring, the sealing washer through the feed liquor pipe, and can discharge cold oil fluid through the fluid-discharge tube to can conveniently change lubricated fluid.

Preferably, the outage has all been seted up to mount pad lower extreme both sides, this application file still provides a use method, close the valve of fluid-discharge tube, make the fluid-discharge tube close, can continuously pour into lubricated fluid into through the feed liquor pipe afterwards, so can make solid fixed ring, the regional inside oil pressure that forms between the sealing washer is more and more high, and the oil pressure is outside carrying out the extruded from the sealing washer of J style of calligraphy this moment, thereby can make the sealing washer of J style of calligraphy opened to the outside from inside by the extrusion, so can make fluid flow out through the border of sealing washer with the transmission shaft contact, thereby can play the effect of scribbling lubricated fluid to the border of sealing washer, carry out the pipe afterwards and stop the feed liquor, the sealing washer can reset the laminating at the transmission shaft outside surface, and this moment because the existence of lubricating oil, thereby can further improve the abrasionproof effect, thereby can further improve the life of sealing washer, and unnecessary lubricating oil can pass through the exhaust of fluid-discharge aperture, this is exactly the effect of fluid-discharge aperture, and when carrying out this operation, because solid fixed ring, regional fluid that forms between the sealing washer is higher, thereby the left side of worry that external material has the transmission shaft enters into the right, perhaps enters into the right.

Preferably, the tighrening ring is elastic material, and here elastic material can select rubber materials or select other materials as required, so can tightly hoop the sealing washer through the elasticity of tighrening ring self for the sealing washer can hug closely at the transmission shaft outside surface.

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

1. the utility model discloses hug closely at the sealing washer and cooperate solid fixed ring under the effect on transmission shaft surface and can form an inclosed storage space to can conveniently carry out the storage of fluid, so through fluid, thereby can conveniently absorb the heat that the sealing washer received, transmit through fluid afterwards, disperse away by mount pad outside surface again, so can effectively dispel the heat to the sealing washer, thereby can effectively improve the life of sealing washer.

2. The utility model discloses can let in lubricating oil to solid fixed ring, the regional inside that forms between the sealing washer through the feed liquor pipe during use, and can discharge cold oil fluid through the fluid-discharge tube to can conveniently circulate the change to lubricating oil, and can also continue to keep the sealed laminating between lower terminal surface and the transmission shaft after the sealing washer lower terminal surface receives wearing and tearing partly when the device uses through the sealing washer of J style of calligraphy, thereby can further improve the life of device sealing washer.

3. The utility model also provides a use method, close the valve of fluid-discharge tube, make the fluid-discharge tube close, can continuously pour into lubricated fluid into through the feed liquor pipe afterwards, so can make solid fixed ring, the regional inside oil pressure that forms between the sealing washer is more and more high, and the oil pressure is inside outwards extrudeing from the sealing washer of J style of calligraphy this moment, thereby can make the sealing washer of J style of calligraphy from inside to be opened to the outside by the extrusion, so can make fluid pass through the border outflow of sealing washer with the transmission shaft contact, thereby can play the effect of scribbling lubricated fluid to the border of sealing washer, carry out the pipe afterwards and stop the feed liquor, the sealing washer can reset the laminating at transmission shaft outside surface, and this moment because the existence of lubricating oil, thereby can further improve the abrasionproof effect.

Drawings

Fig. 1 is a schematic view of the overall structure of a sealed rotating shaft according to the present invention;

fig. 2 is an internal structural view of a sealed rotating shaft mounting seat according to the present invention;

fig. 3 is a cross-sectional view of a sealed rotating shaft according to the present invention;

fig. 4 is an enlarged view of a portion a of fig. 3 of a sealed rotating shaft according to the present invention.

In the figure: 1. a mounting base; 2. a bearing; 3. a drive shaft; 4. a cavity; 5. a fixing ring; 6. a seal ring; 7. a groove; 8. a fastening ring; 9. a heat sink; 10. a liquid inlet pipe; 11. a liquid discharge pipe; 12. and a liquid discharge hole.

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 efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a sealed rotation axis, includes

mount pad

1, 1 inside both sides of mount pad all are provided with bearing 2, 2 inboard middle parts of bearing are provided with transmission shaft 3, be provided with sealing mechanism between 1 inside and the transmission shaft 3 of mount pad, sealing mechanism includes cavity 4, solid fixed ring 5, sealing washer 6, recess 7, tighrening ring 8, cavity 4 has been seted up at 1 inboard middle part of mount pad, 4 inside both sides of cavity are all fixed and are provided with solid fixed ring 5, gu fixed ring 5 outside fixed surface is provided with sealing washer 6, laminate each other between sealing washer 6 and the 3 outside surfaces of outside surface transmission shaft, 6 outside fixed surface of sealing washer are provided with recess 7, the inside movable sleeve of recess 7 is equipped with tighrening ring 8.

The cross section of the sealing ring 6 is J-shaped, and the sealing joint between the lower end surface and the transmission shaft 3 can be continuously kept after the lower end surface is partially worn through the J-shaped sealing ring 6, so that the service life of the sealing ring 6 of the device can be further prolonged; meanwhile, when the J-shaped sealing ring 6 can extrude the sealing ring 6 by high-pressure liquid or gas outside, the sealing effect can be improved by extruding the sealing ring 6 from the outside, and the J-shaped sealing ring 6 is provided with two symmetrical designs, so that the sealing effect of the sealing ring 6 can be effectively ensured no matter which sides of the left side and the right side of the transmission shaft 3 are subjected to high pressure; on the contrary, if pressure is extruded from the inside of the J-shaped sealing ring 6, the J-shaped sealing ring 6 can be opened and is not attached to the transmission shaft 3 any more,

the outer side surface of the mounting seat 1 is uniformly provided with a plurality of radiating grooves 9, and the surface area of the mounting seat 1 can be increased through the radiating grooves 9, so that heat transferred by oil can be conveniently dissipated as soon as possible;

the outer surface of the upper end of the mounting seat 1 is fixedly provided with a liquid inlet pipe 10, the outer surface of the lower end of the mounting seat 1 is fixedly provided with a liquid discharge pipe 11, the liquid inlet pipe 10 and the liquid discharge pipe 11 are arranged between the fixing rings 5, lubricating oil can be introduced into an area formed between the fixing rings 5 and the sealing ring 6 through the liquid inlet pipe 10, and cold oil can be discharged through the liquid discharge pipe 11, so that the lubricating oil can be conveniently replaced;

the two sides of the lower end of the mounting seat 1 are provided with the liquid discharge holes 12, the application document also provides a use mode, a valve of the liquid discharge pipe 11 is closed, then lubricating oil can be continuously injected through the liquid inlet pipe 10, so that the oil pressure in the area formed between the fixing ring 5 and the sealing ring 6 is higher and higher, at the moment, the oil pressure is extruded outwards from the inside of the J-shaped sealing ring 6, the J-shaped sealing ring 6 can be extruded outwards from the inside, so that the oil can flow out through the edge of the sealing ring 6 contacted with the transmission shaft 3, the effect of smearing the lubricating oil on the edge of the sealing ring 6 can be achieved, then the liquid inlet of the pipe is stopped, the sealing ring 6 can be reset and attached to the outer side surface of the transmission shaft 3, at the moment, due to the existence of the lubricating oil, the anti-abrasion effect can be further improved, the service life of the sealing ring 6 can be further prolonged, the redundant lubricating oil can be discharged through the liquid discharge holes 12, the effect of the liquid discharge holes 12 is achieved, and when the operation is carried out, the concern that the external substances enter the right side of the transmission shaft 3 and do not need to enter the left side or enter the left side;

the tighrening ring 8 is elastic material, and here elastic material can select rubber materials or select other materials as required, so can tightly hoop sealing washer 6 through the elasticity of tighrening ring 8 self for sealing washer 6 can hug closely at the transmission shaft 3 outside surface.

The working principle is as follows: when the device is used, the sealing ring 6 is tightly attached to the outer side surface of the transmission shaft through the sealing ring 6, the transmission shaft 3 can be sealed, meanwhile, a sealed storage space can be formed under the action that the sealing ring 6 is tightly attached to the surface of the transmission shaft 3 and matched with the fixing ring 5, so that oil can be conveniently stored, the oil can pass through, so that heat borne by the sealing ring 6 can be conveniently absorbed, then the oil can be transmitted, and then the oil can be emitted from the outer side surface of the mounting seat 1, so that the sealing ring 6 can be effectively radiated, the service life of the sealing ring 6 can be effectively prolonged, meanwhile, lubricating oil can be introduced into an area formed between the fixing ring 5 and the sealing ring 6 through the liquid inlet pipe 10 when the device is used, and cold oil can be discharged through the liquid discharge pipe 11, so that the lubricating oil can be conveniently circularly replaced, and the sealing ring 6 in a J shape can continuously keep the sealing fit between the lower end surface and the transmission shaft 3 after the lower end surface of the sealing ring 6 is partially abraded when the device is used, so that the service life of the sealing ring 6 of the device can be further prolonged; simultaneously, sealing washer 6 through the J style of calligraphy can have high-pressure liquid or gaseous extrusion sealing washer 6 in the outside when, can utilize external extrusion sealing washer 6 to improve sealed effect, simultaneously the application file still provides a usage, close the valve of fluid-discharge tube 11, make fluid-discharge tube 11 close, can continuously pour into lubricating oil into through feed liquor pipe 10 afterwards, so can make solid fixed ring 5, the regional inside oil pressure that forms between the sealing washer 6 is more and more high, and the oil pressure is outside going on extrudeing from the sealing washer 6 inside of J style of calligraphy this moment, thereby can make the sealing washer 6 of J style of calligraphy outwards opened from inside by the extrusion, so can make the border that fluid passes through sealing washer 6 and transmission shaft 3 contact flow, thereby can play the effect of scribbling lubricating oil to the border of sealing washer 6, carry out the pipe afterwards and stop the feed liquor, sealing washer 6 can reset the laminating at transmission shaft 3 outside surfaces, and this moment because the existence of lubricating oil, thereby can further improve the abrasionproof effect, thereby can further improve sealing washer 6's life, and unnecessary lubricating oil can discharge through outage 12, this is exactly the utility model relates to a sealed working principle of rotation axis.

It should be noted that, in this document, relational terms such as first and second, and the like are 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.

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. A sealed rotation axis, includes mount pad (1), its characterized in that: the utility model discloses a bearing assembly, including mount pad (1), bearing (2), mounting pad (1), fixed ring (5), sealing washer (6), recess (7), tighrening ring (8), cavity (4) have been seted up at mount pad (1) inboard middle part, all fixed ring (5) that are provided with in cavity (4) inside and transmission shaft (3), sealing washer (6), recess (7), tighrening ring (8) are provided with to sealing washer (1) inside both sides, fixed ring (5) outside fixed surface is provided with sealing washer (6), laminate each other between sealing washer (6) and outside surface transmission shaft (3) outside surface, sealing washer (6) outside fixed surface is provided with recess (7), the inside movable sleeve of recess (7) is equipped with tighrening ring (8).

2. A sealed rotating shaft according to claim 1, wherein: the cross section of the sealing ring (6) is J-shaped.

3. A sealed rotating shaft according to claim 1, wherein: a plurality of heat dissipation grooves (9) are uniformly formed in the surface of the outer side of the mounting seat (1).

4. A sealed rotating shaft according to claim 1, wherein: the liquid inlet pipe (10) is fixedly arranged on the outer surface of the upper end of the mounting seat (1), the liquid discharge pipe (11) is fixedly arranged on the outer surface of the lower end of the mounting seat (1), and the liquid inlet pipe (10) and the liquid discharge pipe (11) are arranged between the fixing rings (5).

5. A sealed rotating shaft according to claim 1, wherein: liquid discharge holes (12) are formed in two sides of the lower end of the mounting seat (1).

6. A sealed rotating shaft according to claim 1, wherein: the fastening ring (8) is made of elastic material.