CN218670639U

CN218670639U - Mechanical sealing element with self-lubricating structure

Info

Publication number: CN218670639U
Application number: CN202222082468.2U
Authority: CN
Inventors: 夏立超; 徐延锋; 谢东
Original assignee: Dandong Saier Sealing Technology Co ltd
Current assignee: Dandong Saier Sealing Technology Co ltd
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2023-03-21
Anticipated expiration: 2032-08-09

Abstract

The utility model discloses a mechanical sealing element with self-lubricating structure, through being provided with self-lubricating structure, carry out the self-lubricating to the contact surface of rotating ring, quiet ring and axostylus axostyle in the axostylus axostyle rotation process, guarantee the smoothness nature of axostylus axostyle rotation, conveniently add lubricating oil, have the function of self-lubricating; the cask casing is used for installing first spring, and first spring promotes annular push pedal and rotating ring as the elastic compensation piece and supports and lean on quiet ring bottom surface, is equipped with seal structure between rotating ring and the quiet ring, improves the seal between the two, is equipped with sliding connection structure between rotating ring and the cask casing upper end, makes things convenient for the activity of rotating ring.

Description

Mechanical sealing element with self-lubricating structure

Technical Field

The utility model relates to a mechanical seal part technical field specifically is a mechanical seal part with self-lubricating structure.

Background

The mechanical seal is a device for preventing fluid leakage, which is formed by keeping fit and relative sliding of at least one pair of end faces perpendicular to the rotation axis under the action of fluid pressure and the elasticity of a compensation mechanism and the cooperation of an auxiliary seal; the existing mechanical sealing element is inconvenient to add lubricating oil and does not have a self-lubricating function, so that the design practicability is strong, the lubricating oil is convenient to add, and the mechanical sealing element with the self-lubricating structure and the self-lubricating function is necessary.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mechanical seal spare with self-lubricating structure to solve the problem that proposes among the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a mechanical seal with self-lubricating structure, includes the axostylus axostyle, the axostylus axostyle outer wall has cup jointed quiet ring and rotating ring from last to down in proper order, and quiet ring outer wall top edge embedding is equipped with the rubber circle, position is equipped with seal structure between quiet ring and the rotating ring, the fixed cask casing that has cup jointed of axostylus axostyle outer wall lower extreme, the circular slot has been seted up at rotating ring bottom surface middle part, it has annular push pedal to peg graft in the circular slot, and annular push pedal cup joints in the axostylus axostyle outside, the fixed circular cell body that has pegged graft in cask casing inner chamber bottom surface, the axostylus axostyle outer wall has cup jointed first spring, first spring both ends are supported and are leaned on between circular cell body and the annular push pedal, the position is equipped with sliding connection structure between cask casing upper end and the rotating ring outer wall, be equipped with self-lubricating structure in the annular push pedal, self-lubricating structure outside end runs through the rotating ring outer wall and extends to the outside.

According to the technical scheme, the self-lubricating structure comprises an arc-shaped protrusion fixedly assembled on the outer wall of the shaft rod through an even circumference, an annular groove is formed in the inner ring surface of the annular push plate, a hollow ring body is fixedly assembled on the outer side of an inner cavity of the annular groove, a sponge layer is filled in the inner cavity of the hollow ring body, the left side and the right side of the outer wall of the hollow ring body are fixedly communicated with a lubricant inlet pipe, the outer side end of the lubricant inlet pipe penetrates through the outer wall of the moving ring and extends to the outside, a plug cap is screwed at the outer side end of the lubricant inlet pipe, a connecting pipe is uniformly and fixedly communicated with the inner side surface of the hollow ring body, a screen plate is fixedly assembled on the outer side end of the connecting pipe, a second spring is fixedly connected with the outer side surface of the screen plate, a rolling ball is rotatably clamped at the inner side end of the connecting pipe, and the inner side end of the second spring is abutted to the outer wall of the rolling ball.

According to the technical scheme, the barrel shell comprises a barrel sleeved at the lower end of the outer wall of the shaft rod, a blind hole is formed in the circumference of the lower side of the outer wall of the barrel, a fixing bolt is screwed on the bottom surface of the blind hole, and the inner side end of the fixing bolt abuts against the outer wall of the shaft rod.

According to the technical scheme, the sliding connection structure comprises a first annular groove arranged at the lower end of the outer wall of the moving ring, the upper edge of the inner wall of the barrel shell is integrally formed with an annular bulge, balls are assembled on the inner annular surface of the annular bulge in a circumferential rotation mode, the inner side end of each ball is attached to the bottom surface of the corresponding first annular groove, the lower edge of the outer wall of the moving ring is integrally formed with an outer ring, and the outer ring is connected to the bottom surface of the annular bulge in a clamping mode.

According to the technical scheme, the sealing structure comprises a second annular groove concentrically arranged on the upper surface of the moving ring, a rubber layer is fixedly adhered to the inner wall of the second annular groove, an annular ring is fixedly assembled on the bottom surface of the static ring corresponding to the second annular groove, the annular ring is inserted into the second annular groove, and the outer wall of the lower end of the annular ring is attached to the inner wall of the rubber layer.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is:

the utility model discloses, through being provided with self-lubricating structure, carry out the self-lubricating to the contact surface of rotating ring, quiet ring and axostylus axostyle in the axostylus axostyle rotation process, guarantee the smoothness nature of axostylus axostyle rotation, conveniently add lubricating oil, have the function of self-lubricating; the cask casing is used for installing first spring, and first spring promotes annular push pedal and rotating ring as the elastic compensation piece and supports and lean on quiet ring bottom surface, is equipped with seal structure between rotating ring and the quiet ring, improves the seal between the two, is equipped with sliding connection structure between rotating ring and the cask casing upper end, makes things convenient for the activity of rotating ring.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a schematic view of the structure of the present invention;

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

fig. 3 is an enlarged schematic view of a portion a in fig. 2 according to the present invention.

In the figure: 1-shaft rod, 2-stationary ring, 3-rubber ring, 4-movable ring, 5-sealing structure, 51-second ring groove, 52-annular ring, 53-rubber layer, 6-drum shell, 61-drum, 62-blind hole, 63-fixing bolt, 7-sliding connection structure, 71-first ring groove, 72-annular protrusion, 73-ball, 74-outer ring, 8-circular groove, 9-annular push plate, 10-circular groove body, 11-first spring, 12-self-lubricating structure, 121-arc protrusion, 122-annular groove, 123-hollow ring body, 124-sponge layer, 125-lubricant feed pipe, 126-connecting pipe, 127-second spring and 128-rolling ball.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a mechanical seal with self-lubricating structure, including axostylus axostyle 1, 1 outer wall of axostylus axostyle has cup jointed quiet ring 2 and rotating ring 4 from last to down in proper order, and the embedding of 2 outer wall upper edges of quiet ring is equipped with rubber circle 3, the position is equipped with seal structure 5 between quiet ring 2 and the rotating ring 4, the fixed cup joint of 1 outer wall lower extreme of axostylus axostyle has cask casing 6, circular slot 8 has been seted up at 4 bottom surface middle parts of rotating ring, 8 interpolation of circular slot have annular push pedal 9, and annular push pedal 9 cup joints in the 1 outside of axostylus axostyle, 6 inner chamber bottom surfaces of cask casing are fixed to be pegged graft and have circular cell body 10, 1 outer wall of axostylus axostyle has cup jointed first spring 11, first spring 11 both ends are supported and are leaned on between circular cell body 10 and annular push pedal 9, the position is equipped with sliding connection structure 7 between 6 upper ends of cask and the 4 outer walls of rotating ring, be equipped with self-lubricating structure 12 in the annular push pedal 9, the end of self-lubricating structure runs through the rotating ring 4 outer wall and extends to the outside.

By arranging the self-lubricating structure 12, the contact surfaces of the movable ring 4, the static ring 2 and the shaft lever 1 are self-lubricated in the rotating process of the shaft lever 1, so that the rotating smoothness of the shaft lever 1 is ensured, lubricating oil is conveniently added, and the self-lubricating function is realized; barrel casing 6 is used for installing first spring 11, and first spring 11 promotes annular push pedal 9 and rotating ring 4 as the elastic compensation piece and supports and lean on quiet ring 2 bottom surface, is equipped with seal structure 5 between rotating ring 4 and the quiet ring 2, improves the seal between the two, is equipped with sliding connection structure 7 between rotating ring 4 and the 6 upper ends of barrel casing, makes things convenient for the activity of rotating ring 4.

Specifically, the self-lubricating structure 12 comprises an arc-shaped protrusion 121 uniformly and circumferentially and fixedly assembled on the outer wall of the shaft rod 1, an annular groove 122 is formed in the inner annular surface of the annular push plate 9, a hollow ring body 123 is fixedly assembled on the outer side of the inner cavity of the annular groove 122, a sponge layer 124 is filled in the inner cavity of the hollow ring body 123, lubricant feed pipes 125 are fixedly communicated with the left side and the right side of the outer wall of the hollow ring body 123, the outer side ends of the lubricant feed pipes 125 penetrate through the outer wall of the movable ring 4 and extend to the outside, plugging caps are screwed on the outer side ends of the lubricant feed pipes 125, a connecting pipe 126 is uniformly and fixedly communicated with the inner side of the hollow ring body 123, a screen plate is fixedly assembled on the outer side of the connecting pipe 126, a second spring 127 is fixedly connected to the outer side of the screen plate, the inner side end of the connecting pipe 126 is rotatably clamped with a rolling ball 128, and the second spring 127 abuts against the outer wall of the rolling ball 128; the 1 rotation of axostylus axostyle drives interval distribution's the protruding 121 intermittent type nature contact spin 128 of arc, contacts second spring 127 at every turn and all is compressed, and spin 128 rotates when the contact and paints lubricating oil on the protruding 121 of arc, and it has along the protruding outer wall of arc to flow to axostylus axostyle 1 on lubricated, carries out self-lubricating to axostylus axostyle 1 and rotating ring 4, 2 clearances of quiet ring.

Specifically, the drum shell 6 comprises a drum 61 sleeved on the lower end of the outer wall of the shaft lever 1, a blind hole 62 is formed in the circumference of the lower side of the outer wall of the drum 61, a fixing bolt 63 is screwed on the bottom surface of the blind hole 62, and the inner end of the fixing bolt 63 abuts against the outer wall of the shaft lever 1.

Specifically, sliding connection structure 7 is including offering in the first annular 71 of the outer wall lower extreme of rotating ring 4, and 6 inner walls upper edge integrated into one piece of cask casing have annular protrusion 72, and the even circumference of annular protrusion 72 inner ring face rotates and is equipped with ball 73, and the laminating of ball 73 medial extremity and first annular 71 bottom surface, and rotating ring 4 outer wall lower edge integrated into one piece has outer loop 74, and outer loop 74 joint is on the protruding 72 bottom surface of annular.

Specifically, the sealing structure 5 includes a second annular groove 51 concentrically arranged on the upper surface of the movable ring 4, a rubber layer 53 is fixedly adhered to the inner wall of the second annular groove 51, an annular ring 52 is fixedly assembled on the bottom surface of the stationary ring 2 corresponding to the second annular groove 51, the annular ring 52 is inserted into the second annular groove 51, and the outer wall of the lower end of the annular ring 52 is attached to the inner wall of the rubber layer 53.

The working principle is as follows:

the utility model has the advantages that the self-lubricating structure 12 is arranged, the contact surfaces of the movable ring 4, the static ring 2 and the shaft lever 1 are self-lubricated in the rotating process of the shaft lever 1, the rotating smoothness of the shaft lever 1 is ensured, lubricating oil is conveniently added, and the self-lubricating function is realized; barrel casing 6 is used for installing first spring 11, and first spring 11 promotes annular push pedal 9 and rotating ring 4 as the elastic compensation piece and supports and lean on quiet ring 2 bottom surface, is equipped with seal structure 5 between rotating ring 4 and the quiet ring 2, improves the seal between the two, is equipped with sliding connection structure 7 between rotating ring 4 and the 6 upper ends of barrel casing, makes things convenient for the activity of rotating ring 4.

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.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A mechanical seal having a self-lubricating structure, characterized by: including axostylus axostyle (1), quiet ring (2) and rotating ring (4) have been cup jointed in proper order from last to down to axostylus axostyle (1) outer wall, and quiet ring (2) outer wall top edge embedding is equipped with rubber circle (3), the position is equipped with seal structure (5) between quiet ring (2) and rotating ring (4), the fixed cup joint of axostylus axostyle (1) outer wall lower extreme has cask casing (6), round slot (8) have been seted up at rotating ring (4) bottom surface middle part, round slot (8) interpolation has annular push pedal (9), and annular push pedal (9) cup joints in the axostylus axostyle (1) outside, cask casing (6) inner chamber bottom surface is fixed to be pegged graft and has circular cell body (10), axostylus axostyle (1) outer wall has cup jointed first spring (11), first spring (11) both ends are supported and are leaned on between circular cell body (10) and annular push pedal (9), the position is equipped with sliding connection structure (7) between cask casing (6) upper end and rotating ring (4) outer wall outside, be equipped with self-lubricating structure (12) in annular push pedal (9), self-lubricating structure (12) run through to the outside.

2. A mechanical seal with self-lubricating structure, according to claim 1, characterized in that: the self-lubricating structure (12) comprises arc-shaped protrusions (121) which are uniformly and circumferentially and fixedly assembled on the outer wall of the shaft rod (1), an annular groove (122) is formed in the inner ring surface of the annular push plate (9), a hollow ring body (123) is fixedly assembled on the outer side of the inner cavity of the annular groove (122), a sponge layer (124) is filled in the inner cavity of the hollow ring body (123), lubricant feeding pipes (125) are fixedly communicated with the left side and the right side of the outer wall of the hollow ring body (123), the outer side ends of the lubricant feeding pipes (125) penetrate through the outer wall of the movable ring (4) and extend to the outside, plugging caps are screwed on the outer side ends of the lubricant feeding pipes (125), a connecting pipe (126) is uniformly and fixedly communicated with the inner side surface of the hollow ring body (123), a rolling ball screen plate is fixedly assembled on the outer side of the connecting pipe (126), a second spring (127) is rotatably clamped with the rolling ball (128), and the inner side end of the second spring (127) abuts against the outer wall of the rolling ball (128).

3. A mechanical seal with self-lubricating structure, according to claim 1, characterized in that: the drum shell (6) comprises a drum (61) sleeved at the lower end of the outer wall of the shaft lever (1), a blind hole (62) is formed in the circumference of the lower side of the outer wall of the drum (61), a fixing bolt (63) is screwed on the bottom surface of the blind hole (62), and the inner side end of the fixing bolt (63) abuts against the outer wall of the shaft lever (1).

4. A mechanical seal with self-lubricating structure, according to claim 1, characterized in that: sliding connection structure (7) are including offering in first annular (71) of rotating ring (4) outer wall lower extreme, cask casing (6) inner wall top edge integrated into one piece has annular protrusion (72), the even circumference of annular protrusion (72) inner ring face rotates and is equipped with ball (73), and laminating of ball (73) medial extremity and first annular (71) bottom surface, rotating ring (4) outer wall bottom edge integrated into one piece has outer loop (74), outer loop (74) joint is on annular protrusion (72) bottom surface.

5. A mechanical seal with self-lubricating structure, according to claim 1, characterized in that: seal structure (5) are including concentric second ring groove (51) of seting up in rotating ring (4) upper surface, second ring groove (51) inner wall is pasted and is fixed with rubber layer (53), quiet ring (2) bottom surface corresponds second ring groove (51) fixed assembly has annular ring (52), annular ring (52) are pegged graft in second ring groove (51), annular ring (52) lower extreme outer wall and the laminating of rubber layer (53) inner wall.