CN211423372U - Horizontal spiral opposite direction double-blade stirring shaft sealing device - Google Patents
Horizontal spiral opposite direction double-blade stirring shaft sealing device Download PDFInfo
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- CN211423372U CN211423372U CN201921978352.9U CN201921978352U CN211423372U CN 211423372 U CN211423372 U CN 211423372U CN 201921978352 U CN201921978352 U CN 201921978352U CN 211423372 U CN211423372 U CN 211423372U
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Abstract
The utility model discloses a horizontal spiral opposite double-paddle stirring shaft sealing device, which comprises a shaft shoulder bush sleeved at the shaft shoulder of a stirring shaft, a lubricating sleeve, a flange sleeve, a straight-through pressure injection oil cup and O-shaped sealing rings, wherein one end of the lubricating sleeve is contacted with the shaft shoulder bush and sleeved on the stirring shaft, the end cover is sleeved on the stirring shaft and tightly presses the other end of the lubricating sleeve, the flange sleeve is sleeved on the lubricating sleeve, the two ends of the flange sleeve are fixedly connected with a stirring box body and the end cover through bolts respectively, the straight-through pressure injection oil cup is fixedly arranged on the flange sleeve and extends to the lubricating sleeve, and the O-shaped; an annular oil conveying groove is formed in the outer wall of the lubricating sleeve and corresponds to the oil outlet end of the straight-through type pressure injection oil cup, and a plurality of radial lower oil holes for conveying oil to the surface of the stirring shaft are distributed on the oil conveying groove at intervals along an annular shape. The structure is simple, scientific and reasonable, easy to implement, convenient to maintain, high in sealing performance and good in lubricating effect, is suitable for different lubricating requirements of various working conditions, and can ensure good operation of equipment.
Description
Technical Field
The utility model belongs to the technical field of agitated vessel technique and specifically relates to a horizontal spiral subtend double-oar leaf (mixing) shaft sealing device is related to.
Background
In the technical field of material mixing and stirring, strict requirements on good sealing and synchronous lubrication of a transmission shaft of a stirring mechanism of a core component of equipment are one of key points and difficulties of technical products in the field. At present mainstream technique and product mainly through labyrinth structure, complicated structural design such as multistage tortuous structure, the cooperation of multiple material is used, higher manufacturing assembly requirement, modes such as strict use maintenance condition realize, these modes inevitably lead to the sealing device structure too complicated, be unfavorable for manufacturing, the dismouting is used and is maintained the difficulty, the effective reliable and lasting stable not enough common problem of sealed lubrication effect, consequently, stirring shaft system based on horizontal spiral subtend double-blade stirring mixing arrangement, research and development a universal application is in the same type functional device, simple structure has, easy processing, facilitate the use, totally enclosed and lubricated effectual, the novel sealing device of maintenance of being convenient for, it is just necessary to improve the not enough of current technique and product existence.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects existing in the prior art and provides a horizontal spiral opposite double-blade stirring shaft sealing device which has simple structure, easy processing, convenient use, good sealing and lubricating effect and convenient maintenance.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
a sealing device for a horizontal spiral opposite double-paddle stirring shaft is sleeved on a stirring shaft and fixedly connected with a stirring box body during assembly; the sealing device comprises a shaft shoulder bush sleeved at the shaft shoulder of the stirring shaft, a lubricating sleeve, an end cover, a flange sleeve, a straight-through pressure injection oil cup and O-shaped sealing rings, wherein one end of the lubricating sleeve is in contact with the shaft shoulder bush and sleeved on the stirring shaft, the end cover is sleeved on the stirring shaft and tightly presses the other end of the lubricating sleeve, the flange sleeve is sleeved on the lubricating sleeve, two ends of the flange sleeve are fixedly connected with the stirring box body and the end cover through bolts respectively, the straight-through pressure injection oil cup is fixedly arranged on the flange sleeve and extends to the lubricating sleeve, and; an annular oil conveying groove is formed in the outer wall of the lubricating sleeve and corresponds to the oil outlet end of the straight-through type pressure injection oil cup, and a plurality of radial lower oil holes for conveying oil to the surface of the stirring shaft are distributed on the oil conveying groove at intervals along an annular shape.
Preferably, the straight-through type pressure filling oil cup is connected with the flange sleeve through a thread structure.
Preferably, the inner wall of the lubricating sleeve is provided with a limit groove for accommodating the O-shaped sealing ring.
Preferably, the oil transfer groove has a rectangular or U-shaped cross section.
Preferably, the radial lower oil hole is a circular hole.
Preferably, a gap is arranged between the inner wall of the lubricating sleeve and the stirring shaft to form an oil storage space and reinforce the lubricating effect.
Preferably, the lubricating sleeve, the O-shaped sealing ring, the sealing paper and the end cover are fixedly connected and pressed through screws.
Compared with the prior art, the utility model has the advantages of as follows:
1. the utility model discloses simple structure, scientific and reasonable, easy implementation, be convenient for maintain.
2. The utility model discloses it is small in quantity to constitute the part, very big solution traditional device because the structure that uses multiple part to bring is complicated, technological requirement is high, the reliability is low and hidden danger big scheduling problem.
3. The utility model discloses the rubber O type sealing washer of lubricated interval adoption warp with the adaptation through the atress compaction, has played fine totally enclosed effect, than the sealed mode of traditional square cross section or other materials, and leakproofness and stability improve by a wide margin.
4. The utility model discloses an oily structural design scientific and reasonable under lubricating oil, it is convenient, the smooth and easy even that flows to annotate, and is lubricated effectual, is applicable to the different lubricated requirements of multiple operating mode, ensures the good operation of equipment.
5. The utility model discloses an oil storage clearance space between lubricated section forms complete submergence's lubricated environment and state after filling lubricating oil, fine assurance lubricated effect.
6. The utility model discloses a secondary seal of rubber seal's interval sealed and sealing paper, when guaranteeing and promote the effective lubrication of lubricated region by a wide margin, also thoroughly solved ubiquitous seepage flow hourglass scheduling problem.
7. The utility model discloses the end cover passes through the direct linking firmly of screw and covers, provides and realizes through modes such as sealed paper thickness, packing ring increase and decrease, screw elasticity in order to prevent with the convenient nimble adjusting method who supplements the purpose, has further ensured whole sealing device's adaptability and reliability.
8. The structure and the principle of the sealing device have universal applicability to the sealing lubrication of the same kind of horizontal shaft transmission, and the application range is wide.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of a portion a in fig. 1.
FIG. 3 is a side schematic view of the lubrication sleeve.
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 any creative effort belong to the protection scope of the present invention. In the following description, for the sake of clarity of illustrating the structure and operation of the present invention, reference will be made to the accompanying drawings by means of directional terms, but the terms "front", "rear", "left", "right", "up", "down", etc. should be construed as convenient terms and not as limitative terms.
The horizontal spiral opposite double-blade stirring shaft sealing device shown in the figures 1-3 is sleeved on a stirring shaft 8 and fixedly connected with a stirring box body 10 during assembly; the sealing device comprises a shaft shoulder bush 1 sleeved at the shaft shoulder of a stirring shaft 8, a lubricating sleeve 4, an end cover 7, a flange sleeve 2, a straight-through type pressure injection oil cup 3 and O-shaped sealing rings 5, wherein one end of the lubricating sleeve 4 is in contact with the shaft shoulder bush 1 and sleeved on the stirring shaft 8, the end cover 7 is sleeved on the stirring shaft 8 and tightly presses the other end of the lubricating sleeve 4, the flange sleeve 2 is sleeved on the lubricating sleeve 4, and two ends of the flange sleeve 2 are fixedly connected with a stirring box body 10 and the end cover 7 through bolts respectively; an annular oil conveying groove 9 is formed in the outer wall of the lubricating sleeve 4 and corresponds to the oil outlet end of the straight-through type pressure injection oil cup 3, a plurality of radial oil discharging holes 11 for conveying oil to the surface of the stirring shaft 8 are distributed on the oil conveying groove 9 at intervals along an annular shape, and a gap 12 is formed between the inner wall of the lubricating sleeve 4 and the stirring shaft 8 to form an oil storage space.
In this embodiment, the through-type pressure filling oil cup 3 is connected to the flange sleeve 2 through a thread structure, and a threaded hole (not shown) connected to the through-type pressure filling oil cup 3 is formed in the flange sleeve. It is obvious that other means for attachment, such as gluing, etc., can be used. The inner wall of the lubricating sleeve 4 is provided with a limit groove for accommodating the O-shaped sealing ring 5, so that the O-shaped sealing ring 5 can be conveniently positioned and installed. The cross section of the oil conveying groove 9 can be in a rectangular shape or a U-shaped shape and other suitable shapes so as to facilitate processing. The radial lower oil hole 11 is a round hole, is convenient and simple to process, and obviously can adopt other applicable hole shapes.
The lubricating sleeve 4 is made of nylon (PA-MC), and forms a closed, smooth and stable oil injection system through close fit with the shaft shoulder bush 1, the flange sleeve and the O-shaped sealing ring 5, the oil conveying groove 9 and the radial lower oil hole 11.
The material of the O-shaped sealing rings 5 at two ends of the relative interval between the lubricating sleeve 4 and the stirring shaft 8 is rubber, the cross section of the O-shaped sealing rings is circular, the O-shaped sealing rings are compressed and deformed in a adapting mode through stress, a good complete sealing effect is achieved, and compared with the sealing mode of a traditional square cross section or other materials, the sealing performance and the stability are greatly improved.
As shown in fig. 2, a gap 12 is formed between the inner wall of the lubricating sleeve 4 and the stirring shaft 8 to form an oil storage space, and a lubricating environment and a state of complete immersion are formed after lubricating oil is injected through the sealing of the O-shaped sealing rings 5 at the two ends of the lubricating section, so that the lubricating effect is ensured;
the flange sleeve is connected and matched with the end cover 7 through screws to seal the outer side of the shaft end, and sealing paper 6 is arranged between the flange sleeve and the end cover 7 and used as a design and measure of a secondary oil seal to effectively ensure the complete sealing property, reliability and stability of the whole sealing device.
The flange sleeve 2 is connected and matched with the end cover 7, the sealing paper 6 and the screws, and the adaptability and the reliability of the integral sealing device are further ensured by adjusting the thickness of the sealing paper 6, the increase and decrease of the gaskets, the tightness of the screws and the like.
In the utility model, a plurality of radial lower oil holes 11 are distributed on the oil conveying groove 9 on the outer circular surface of the lubricating sleeve 4 at intervals, so that lubricating oil is uniformly injected and flows to the lubricating surface of the stirring shaft 8; the two ends of the interval between the lubricating sleeve 4 and the stirring shaft 8 are provided with O-shaped sealing rings 5, the O-shaped sealing rings 5 near the shaft shoulder are sealed on one side of a lubricating area through the tight fit of the shaft shoulder bush 1, the lubricating sleeve 4 and the stirring shaft 8, and the O-shaped sealing rings 5 near the shaft shoulder are sealed on the other side of the lubricating area through the tight fit of the end cover 7, the lubricating sleeve 4 and the stirring shaft 8. When the lubricating oil is filled, the lubricating oil is filled from the opening of the straight-through type pressure filling oil cup 3 on the flange sleeve, enters the oil conveying groove 9 of the lubricating sleeve 4, uniformly flows to the lubricating surface of the stirring shaft 8 through the oil outlet hole 11, and forms a closed and stable lubricating environment based on the sealing matching of the O-shaped sealing rings 5 on two sides of the lubricating section, thereby ensuring that the stirring shaft 8 operates efficiently and stably.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. It should be understood by those skilled in the art that any modification, equivalent replacement, or improvement made to the technical solutions or parts of technical features described in the above embodiments can be included in the scope of the present invention within the spirit and principle of the present invention.
Claims (7)
1. The utility model provides a horizontal spiral subtend double-bladed (mixing) shaft sealing device which characterized in that: the lubricating device comprises a shaft shoulder bush sleeved at the shaft shoulder of the stirring shaft, a lubricating sleeve, an end cover, a flange sleeve, a straight-through pressure injection oil cup and O-shaped sealing rings, wherein one end of the lubricating sleeve is in contact with the shaft shoulder bush and sleeved on the stirring shaft; an annular oil conveying groove is formed in the outer wall of the lubricating sleeve and corresponds to the oil outlet end of the straight-through type pressure injection oil cup, and a plurality of radial lower oil holes for conveying oil to the surface of the stirring shaft are distributed on the oil conveying groove at intervals along an annular shape.
2. The horizontal spiral opposing double-blade stirring shaft sealing device as claimed in claim 1, wherein: the straight-through type pressure injection oil cup is connected with the flange sleeve through a threaded structure.
3. The horizontal spiral opposing double-blade stirring shaft sealing device as claimed in claim 1, wherein: and the inner wall of the lubricating sleeve is provided with a limit groove for accommodating the O-shaped sealing ring.
4. The horizontal spiral opposing double-blade stirring shaft sealing device as claimed in claim 1, wherein: the cross section of the oil conveying groove is rectangular or U-shaped.
5. The horizontal spiral opposing double-blade stirring shaft sealing device as claimed in claim 1, wherein: the radial lower oil hole is a round hole.
6. The horizontal spiral opposing double-blade stirring shaft sealing device as claimed in claim 1, wherein: and a gap for forming an oil storage space is arranged between the inner wall of the lubricating sleeve and the stirring shaft.
7. The horizontal spiral opposing double-blade stirring shaft sealing device as claimed in claim 1, wherein: the lubricating sleeve, the O-shaped sealing ring, the sealing paper and the end cover are fixedly connected through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921978352.9U CN211423372U (en) | 2019-11-15 | 2019-11-15 | Horizontal spiral opposite direction double-blade stirring shaft sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921978352.9U CN211423372U (en) | 2019-11-15 | 2019-11-15 | Horizontal spiral opposite direction double-blade stirring shaft sealing device |
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| Publication Number | Publication Date |
|---|---|
| CN211423372U true CN211423372U (en) | 2020-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921978352.9U Active CN211423372U (en) | 2019-11-15 | 2019-11-15 | Horizontal spiral opposite direction double-blade stirring shaft sealing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114483958A (en) * | 2022-01-18 | 2022-05-13 | 爱发科东方检测技术(成都)有限公司 | Motion sealing mechanism with lubrication function |
-
2019
- 2019-11-15 CN CN201921978352.9U patent/CN211423372U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114483958A (en) * | 2022-01-18 | 2022-05-13 | 爱发科东方检测技术(成都)有限公司 | Motion sealing mechanism with lubrication function |
| CN114483958B (en) * | 2022-01-18 | 2024-01-30 | 爱发科东方检测技术(成都)有限公司 | Sealing mechanism with lubrication movement |
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