CN211175367U

CN211175367U - Sealing mechanism

Info

Publication number: CN211175367U
Application number: CN201922269504.4U
Authority: CN
Inventors: 陈福奇; 肖龙华; 刘建兴; 周正胜
Original assignee: Hainan Jiankun Environmental Protection Engineering Co ltd
Current assignee: Hainan Jiankun Environmental Protection Engineering Co ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-08-04
Anticipated expiration: 2029-12-17

Abstract

The utility model discloses a sealing mechanism, which comprises a shaft sleeve, a movable ring, a first stationary ring, a second stationary ring, a sealing cover, a first floating sealing ring, a second floating sealing ring and an oil ring; one end of the shaft sleeve is provided with a boss, and the back of the boss is provided with a sealing ring groove; the shaft sleeve is sequentially sleeved with a first static ring and a sealing cover from the boss end to the other end, the dynamic ring is connected with the boss, and the dynamic ring is sleeved with a second static ring; the first stationary ring is connected with the second stationary ring; the first stationary ring is connected with the sealing cover; the first floating sealing ring is arranged in the sealing ring groove; the sealing cover is provided with a groove at one end close to the first floating sealing ring, the outer sleeve of the second floating sealing ring is sleeved on the shaft sleeve and is arranged at the groove, the end face of the second floating sealing ring is attached to the end face of the first floating sealing ring, an oil ring is sleeved in the other end of the sealing cover, and the oil ring is sleeved on the shaft sleeve. The utility model discloses structural design is ingenious, convenient to use, sealed effectual sealing mechanism.

Description

Sealing mechanism

Technical Field

The utility model belongs to the technical field of the trucd mixer cleaning equipment technique and specifically relates to a sealing mechanism for on grit separator is related to realize grit separator's effective sealing, prevent that sewage from leaking.

Background

With the development of the field of construction engineering year by year, the function of the mixer truck in the field of construction is not available. At present, because of the defects of the mixer truck equipment or the reasons of construction site limitation, the concrete materials in the mixer truck can not be used and finished, so that the concrete materials are left in the mixer truck, and if not cleaned in time, the concrete materials are not cleaned conveniently after solidification. Contain a large amount of cement in the concrete, insoluble materials such as mineral substance powder, can not empty sewage at will after wasing the trucd mixer, present wash sewage treatment system through the trucd mixer and carry out material recycle to the sewage after wasing, wherein be used for carrying out the grit separator who separates recovery to grit in the sewage, can realize the effective separation of grit in the sewage, but current grit separator seals the effect poor, there is the problem that sewage leaks, not only influence on-the-spot cleanliness, be unfavorable for the recovery of grit in the sewage simultaneously, and lead to sealing device to damage.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects of the prior art, providing a sealing mechanism which has the advantages of ingenious structural design, convenient use and good sealing effect.

In order to achieve the above object, the present invention provides a sealing mechanism, which comprises a shaft sleeve, a movable ring, a first stationary ring, a second stationary ring, a sealing cover, a first floating sealing ring, a second floating sealing ring and an oil ring; a boss is arranged at one end of the shaft sleeve, and a sealing ring groove is arranged on the back surface of the boss; the shaft sleeve is sequentially sleeved with the first static ring and the sealing cover from the boss end to the other end, the dynamic ring is connected with the boss, and the second static ring is sleeved outside the dynamic ring; the first stationary ring is connected with the second stationary ring; the first stationary ring is connected with the sealing cover; the first floating sealing ring is arranged in the sealing ring groove; a groove is formed in one end, close to the first floating sealing ring, of the sealing cover, the second floating sealing ring is sleeved on the shaft sleeve and is installed at the groove, the end face of the second floating sealing ring is attached to the end face of the first floating sealing ring, the oil ring is sleeved in the other end of the sealing cover, and the oil ring is sleeved on the shaft sleeve; and lubricating grease is arranged in the gap among the movable ring, the first stationary ring, the second stationary ring, the sealing cover and the shaft sleeve.

Furthermore, an inner spigot is arranged on the second stationary ring, and the movable ring is arranged at the inner spigot.

Furthermore, a first outer spigot is arranged on the first stationary ring.

Furthermore, one end of the sealing cover is provided with a second outer spigot; the outer spigot of second with the hole of first quiet ring cooperatees, the terminal surface of first quiet ring with the spigot face of the outer spigot of second is laminated mutually, the terminal surface of first quiet ring is equipped with the terminal surface recess, install in the terminal surface recess the sealing washer.

The utility model discloses during the use for realize sand and stone separator's sealing, specifically, sand and stone separator adopts the auger delivery principle to realize the grit separation in the sewage, the utility model discloses sealing mechanism adopts multistage layer upon layer sealed, and is sealed effectual to effectively prevent leaking of sewage in the sand and stone separator, not only guaranteed on-the-spot cleanliness, be favorable to the recovery of grit in the sewage simultaneously, and improved sealing mechanism's life.

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 these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a sectional view a-a of fig. 1.

Fig. 3 is a sectional view of the shaft sleeve of the present invention.

Detailed Description

In order to make the technical solution of the present invention better understood, the present invention is described in detail below with reference to the accompanying drawings, and the description of the present invention is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like refer to the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the utility model is usually placed when in use, and are used for convenience of description and simplification of description, but do not refer to or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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.

As shown in fig. 1 to 3, the present embodiment provides a seal mechanism including a sleeve 1, a moving ring 5, a first stationary ring 3, a second stationary ring 4, a seal cover 2, a first floating seal ring 6, a second floating seal ring 7, and an oil ring 8; a boss 10 is arranged at one end of the shaft sleeve 1, and a sealing ring groove 101 is arranged on the back of the boss 10; the shaft sleeve 1 is sequentially sleeved with the first static ring 3 and the sealing cover 2 from the end of the boss 10 to the other end, the dynamic ring 5 is connected with the boss 10, and the second static ring 4 is sleeved outside the dynamic ring 5; the first stationary ring 3 and the second stationary ring 4 are connected; the first stationary ring 3 is connected with the sealing cover 2; the first floating seal ring 6 is arranged in the seal ring groove 101; a groove is formed in one end, close to the first floating seal ring 6, of the seal cover 2, the second floating seal ring 7 is sleeved on the shaft sleeve 1 and is installed at the groove, the end face of the second floating seal ring 7 is attached to the end face of the first floating seal ring 6, the oil ring 8 is sleeved in the other end of the seal cover 2, and the oil ring 8 is sleeved on the shaft sleeve 1; and lubricating grease is arranged in the gaps among the movable ring 5, the first stationary ring 3, the second stationary ring 4, the sealing cover 2 and the shaft sleeve 1.

When this embodiment uses for realize grit separator's sealed, specifically, grit separator adopts the auger delivery principle to realize the grit separation in the sewage, and 11 centers of casing that grit separator includes are equipped with pivot 12, and pivot 12 is connected with interior helical blade, and 12 one ends of pivot are worn out casing 11 and are connected with rotary driving mechanism, and wherein casing 11 is equipped with the mounting hole in the one end that pivot 12 passed, then the mounting hole is worn out to pivot 12. When the sealing structure is used, the shaft sleeve 1 is sleeved at one end of the rotating shaft through a key, the first stationary ring 3 is installed at the installation hole of the shell, the second stationary ring 4 is connected with the shell, specifically, the second stationary ring 4 and the shell 11 are welded into a whole, the movable ring 5 and the first stationary ring 3 are located in the shell 11, and the sealing cover 2 is located outside the shell 11.

This embodiment sealing mechanism adopts multistage layer upon layer sealed, and is sealed effectual to effectively prevent leaking of interior sewage of grit separator, not only guaranteed on-the-spot cleanliness, be favorable to the recovery of grit in the sewage simultaneously, and improved sealing mechanism's life. Specifically, when the rotating shaft 12 of the sand-stone separating device rotates, the shaft sleeve 1, the movable ring 5 and the first floating sealing ring 6 are driven to rotate together, and dynamic sealing is realized under the action of the movable ring 5, so that sewage in the shell 11 is prevented from flowing into the sealing mechanism, and the sewage is prevented from leaking; lubricating grease is arranged in gaps among the movable ring 5, the first stationary ring 3, the second stationary ring 4, the sealing cover 2 and the shaft sleeve 1, so that the sealing and lubricating functions are further realized; furthermore, when the shaft sleeve 1 rotates, the second floating seal ring 6 is static relative to the shaft sleeve 1, so that the first floating seal ring 6 rotates relative to the second floating seal ring 7, that is, the end face of the first floating seal ring 6 rotates relative to the end face of the second floating seal ring 27, and end face sealing is realized, and therefore, under the action of layer-by-layer sealing, it is ensured that sewage in the shell 11 cannot leak. In the present embodiment, when the shaft sleeve 1 rotates, the oil ring 8 is stationary with respect to the shaft sleeve 1, and foreign substances outside the housing 11 are prevented from entering the inside of the seal mechanism by the action of the oil ring 8, thereby improving the service life of the seal mechanism.

In this embodiment, the second stationary ring 4 is provided with an inner spigot, and the movable ring 5 is installed at the inner spigot, so as to improve the path of the second stationary ring 4 and the movable ring 5, and improve the path of the dynamic seal, so as to improve the dynamic seal effect.

In this embodiment, the first stationary ring 3 is provided with a first outer spigot, the first outer spigot is matched with the mounting hole of the housing 11, and a spigot surface of the first outer spigot is attached to the outer side surface of the housing 11. Under the effect of the first outer spigot, the first stationary ring 3 and the shell 11 are installed and positioned quickly.

In this embodiment, one end of the sealing cover 2 is provided with a second outer spigot; the second spigot with the hole of first stationary ring 3 cooperatees, the terminal surface of first stationary ring 3 with the spigot face of the second spigot is laminated mutually, the terminal surface of first stationary ring 3 is equipped with the terminal surface recess, install in the terminal surface recess sealing washer 9. Under the effect of second external spigot, realize sealed 2 and the cooperation installation of first quiet ring 3, in the effect of sealing washer 9 simultaneously, further play sealed 2 and the sealed end face seal of first quiet ring 3 of lid.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A sealing mechanism is characterized by comprising a shaft sleeve, a movable ring, a first stationary ring, a second stationary ring, a sealing cover, a first floating sealing ring, a second floating sealing ring and an oil ring; a boss is arranged at one end of the shaft sleeve, and a sealing ring groove is arranged on the back surface of the boss; the shaft sleeve is sequentially sleeved with the first static ring and the sealing cover from the boss end to the other end, the dynamic ring is connected with the boss, and the second static ring is sleeved outside the dynamic ring; the first stationary ring is connected with the second stationary ring; the first stationary ring is connected with the sealing cover; the first floating sealing ring is arranged in the sealing ring groove; a groove is formed in one end, close to the first floating sealing ring, of the sealing cover, the second floating sealing ring is sleeved on the shaft sleeve and is installed at the groove, the end face of the second floating sealing ring is attached to the end face of the first floating sealing ring, the oil ring is sleeved in the other end of the sealing cover, and the oil ring is sleeved on the shaft sleeve; and lubricating grease is arranged in the gap among the movable ring, the first stationary ring, the second stationary ring, the sealing cover and the shaft sleeve.

2. A seal arrangement according to claim 1, wherein the second stationary ring is provided with an internal spigot at which the rotating ring is mounted.

3. A seal arrangement according to claim 1, wherein the first stationary ring is provided with a first male end.

4. A seal arrangement according to claim 1, wherein the seal cap is provided with a second male end at one end; the outer spigot of second with the hole of first quiet ring cooperatees, the terminal surface of first quiet ring with the spigot face of the outer spigot of second is laminated mutually, the terminal surface of first quiet ring is equipped with the terminal surface recess, install the sealing washer in the terminal surface recess.