CN215842768U

CN215842768U - Stirring guider with ceramic bushing lining device

Info

Publication number: CN215842768U
Application number: CN202121954297.7U
Authority: CN
Inventors: 汪洪杰; 秦高岭; 乔晓宇; 巩一龙
Original assignee: Zhengzhou Bohui Precision Technology Co ltd
Current assignee: Zhengzhou Bohui Precision Technology Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-02-18
Anticipated expiration: 2031-08-19

Abstract

The utility model relates to a stirring guider provided with a ceramic sleeve lining device, which comprises the sleeve lining device and a stirring shaft, wherein the sleeve lining device is sleeved on the stirring shaft and is a hollow cylinder made of ceramic materials, the upper part of the sleeve lining device is provided with a step part used for being clamped with a bearing seat, the bottom of the sleeve lining device is provided with a conical structure, the step part extends outwards along the radial direction of the sleeve lining device, the conical structure is used for sleeving a movable sealing ring into the lower part of the sleeve lining device, and the cross section area of the conical structure is gradually reduced along the direction from top to bottom. Therefore, due to the excellent wear resistance and corrosion resistance of the ceramic material, the problem of sealing failure caused by abrasion of the bushing lining device can be effectively solved, the potential safety hazard caused by leakage of harmful sealing media due to sealing failure is avoided, and meanwhile, the bushing lining device is not required to be replaced frequently.

Description

Stirring guider with ceramic bushing lining device

Technical Field

The utility model relates to the technical field of stirring guides, in particular to a stirring guide with a ceramic bushing lining device.

Background

The stirring paddle is often arranged on a laboratory-level or pilot-scale glass reaction kettle, the stirring paddle is supported at the upper kettle cover part of the glass reaction kettle through a stirring guider, a bearing outer ring and a bearing inner ring of the stirring guider are connected through a rotary sealing ring, the outer part of the sealing ring is pressed by a lower bearing end cover and a lower sealing seat together and cannot rotate, the inner part of the sealing ring is in contact connection with a shaft sleeve, as the shaft sleeve rotates along with the stirring shaft, sliding friction is generated on the surface of an inner hole of the sealing ring, most of shaft sleeves of the existing stirring shaft adopt PEEK (polyether ether ketone) materials, PEEK polyether ether ketone is a special engineering plastic with excellent performances such as high temperature resistance, self lubrication, easy processing and high mechanical strength, and the adoption of the PEEK materials has the following defects: since PEEK belongs to plastics class material, hardness is lower, wear-resisting, often appears wearing and tearing too big and cause the problem of sealing failure through long-time friction with density spare, consequently often need change to if sealing medium when corroding harmful class material, lead to sealing not tight because of wearing and tearing easily, the medium reveals and produces the potential safety hazard.

Therefore, how to overcome the above-mentioned deficiencies in the conventional technologies becomes an important technical problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model provides a stirring guide device with a ceramic sleeve lining device, which aims to solve the problems that a sleeve of an existing stirring shaft is mostly made of PEEK (polyether ether ketone), the PEEK belongs to plastic materials, the hardness is low, the PEEK is not wear-resistant, and the abrasion is often too large to cause sealing failure through long-time friction with a density part, so that the PEEK is often required to be replaced, and if a sealing medium is a corrosive harmful substance, the sealing is not tight due to abrasion, and the medium is easy to leak to generate potential safety hazards.

The stirring guider with the ceramic sleeve lining device adopts the following technical scheme:

a stirring guider with a ceramic bushing lining device comprises a bushing lining device and a stirring shaft, wherein the bushing lining device is sleeved on the stirring shaft, it is characterized in that the stirring guider also comprises a bearing seat arranged at the outer side of the sleeve lining device, a bearing is arranged in the bearing seat, an end cover is arranged at the lower end of the bearing seat, a sealing seat is also arranged below the end cover, a movable sealing ring is arranged between the end cover and the sealing seat, the sleeve lining device is a hollow cylinder made of ceramic material, the upper part of the sleeve lining device is provided with a step part which is used for being clamped with the bearing seat, the bottom part of the sleeve lining device is provided with a conical structure, the step part extends outwards along the radial direction of the sleeve lining device, the tapered structure is used for sleeving the movable sealing ring on the lower part of the sleeve lining device, and the cross section area of the tapered structure is gradually reduced along the direction from top to bottom.

Preferably, the taper of the tapered structure is 20 °.

Preferably, a tapered fastening sleeve is arranged on the stirring shaft at the upper end of the stepped part, and the cross-sectional area of the tapered fastening sleeve is gradually increased along the direction from top to bottom.

Preferably, a groove is formed in the inner side wall of the end cover, and the dynamic sealing ring is located in the groove.

The utility model has the beneficial effects that: the utility model provides a sealed inefficacy can be avoided effectively in the wearing and tearing of sleeve pipe inside lining device to lead to the fact, and the bottom of sleeve pipe inside lining device establishes to the toper structure, conveniently moves the sealing ring and embolias sleeve pipe inside lining device that stirring director with sleeve pipe inside lining device cover on the (mixing) shaft, sleeve pipe inside lining device establishes to the material for ceramic material's cavity barrel, so, ceramic material's sleeve pipe inside lining device and moves sealing ring hole surface sliding friction, because ceramic material excellent wear resistance and corrosion resisting property. So, the axle sleeve of having solved current (mixing) shaft adopts PEEK (polyether ether ketone) material mostly, because PEEK belongs to plastics class material, hardness is lower, wear-resisting, often appears wearing and tearing too big and cause the problem of sealed inefficacy through the long-time friction with density spare, therefore often needs to be changed to if when sealing medium is corroding harmful class material, lead to sealed not tight because of wearing and tearing easily, the problem that the medium reveals the production potential safety hazard.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

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, and 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.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

FIG. 1 is a sectional view showing the structure of a stirring guide provided with a ceramic bushing lining device in an embodiment of the present invention.

In the figure:

1-stirring shaft, 2-bearing seat, 3-bearing, 4-end cover, 5-sealing seat, 6-dynamic sealing ring, 7-sleeve lining device, 8-step part, 9-conical structure, 10-conical fastening sleeve, 11-upper nut, 12-glass flange, 13-lower fastening sleeve and 14-lower nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the utility model described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the utility model described in the claims.

Referring to fig. 1, the present embodiment provides a stirring guide with a ceramic bushing lining device, as shown in fig. 1, the stirring guide includes a bushing lining device 7 and a stirring shaft 1, the bushing lining device 7 is sleeved on the stirring shaft 1, the stirring guide further includes a bearing seat 2 disposed outside the bushing lining device 7, a bearing 3 is disposed in the bearing seat 2, an end cover 4 is disposed at a lower end of the bearing seat 2, a seal seat 5 is further disposed below the end cover 4, a dynamic seal ring 6 is disposed between the end cover 4 and the seal seat 5, the bushing lining device 7 is a hollow cylinder made of a ceramic material, a step portion 8 for being engaged with the bearing seat 2 is disposed at an upper portion of the bushing lining device 7, a tapered structure 9 is disposed at a bottom portion of the bushing lining device 7, the step portion 8 extends outward along a radial direction of the bushing lining device 7, the tapered structure 9 is used for being sleeved on a lower portion of the bushing lining device 7 by the dynamic seal ring 6, and extends along a direction from top to bottom, the cross-sectional area of toper structure 9 reduces gradually, furtherly, the structure for the stirring director is firm, be equipped with toper adapter sleeve 10 on the (mixing) shaft 1 of step portion 8 upper end, along the direction from the top down, the cross-sectional area of toper adapter sleeve 10 increases gradually, the outside of toper adapter sleeve 10 is used upper portion nut 11 to compress tightly fixedly, and simultaneously, the bottom of lower part seal receptacle 5 is equipped with glass flange 12, the lower extreme of glass flange 12 is equipped with lower part adapter sleeve 13, furtherly, lower part adapter sleeve 13 is the hollow cylindrical structure, the outside of lower part seal receptacle 5 and lower part adapter sleeve 13 is equipped with lower part nut 14 and compresses tightly.

Further, the dynamic sealing ring 6 is sleeved on the lower portion of the casing lining device 7, specifically, the bottom of the casing lining device 7 is set to be the tapered structure 9, the tapered structure 9 facilitates the dynamic sealing ring 6 to be sleeved on the lower portion of the casing lining device 7, the cross-sectional area of the tapered structure 9 is gradually reduced along the direction from top to bottom, specifically, the taper of the tapered structure 9 is 20 degrees, and of course, other taper values can be provided, specifically depending on the actual situation, as shown in fig. 1, a groove is formed in the inner side wall of the end cover 4, and the dynamic sealing ring 6 is located in the groove.

It should be noted that, the sliding friction between the inner hole surfaces of the bushing lining device 7 and the dynamic seal ring 6 made of ceramic materials can effectively avoid the problem of seal failure caused by abrasion of the bushing lining device 7 due to the excellent wear resistance and corrosion resistance of the ceramic materials.

So set up, the axle sleeve of having solved current (mixing) shaft adopts PEEK (polyether ether ketone) material mostly, because PEEK belongs to plastics class material, hardness is lower, wear-resisting, often appears wearing and tearing too big and cause the problem of sealed inefficacy through the long-time friction with density spare, therefore often need change to if sealing medium when corroding harmful class material, lead to sealed not tight because the axle sleeve wearing and tearing easily, the problem that the medium reveals the production potential safety hazard.

In conclusion, when the stirring shaft 1 rotates, the sleeve lining device 7 rotates along with the stirring shaft 1, and the dynamic sealing ring 6 is fixed, so that the sleeve lining device 7 and the inner hole surface of the dynamic sealing ring 6 are in sliding friction, and the excellent wear resistance and corrosion resistance of the ceramic material can effectively avoid the problem of sealing failure caused by abrasion of the sleeve lining device 7, avoid the potential safety hazard problem caused by leakage of harmful sealing media due to sealing failure, and simultaneously avoid frequent replacement.

It should be noted that the terms "first," "second," and the like, as used herein, are not intended to limit the specific order, but merely to distinguish one element or function from another. The terms "upper" and "lower" are used when the stirring guide is in the state of being placed as shown in FIG. 1.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A stirring guider with a ceramic bushing lining device comprises a bushing lining device and a stirring shaft, wherein the bushing lining device is sleeved on the stirring shaft, and the stirring guider is characterized by further comprising a bearing seat arranged on the outer side of the bushing lining device, a bearing is arranged in the bearing seat, an end cover is arranged at the lower end of the bearing seat, a sealing seat is further arranged below the end cover, a movable sealing ring is arranged between the end cover and the sealing seat, the bushing lining device is a hollow cylinder made of ceramic materials, the upper portion of the bushing lining device is provided with a step portion used for being clamped with the bearing seat, the bottom of the bushing lining device is provided with a conical structure, the step portion extends outwards along the radial direction of the bushing lining device, the conical structure is used for enabling the movable sealing ring to be sleeved on the lower portion of the bushing lining device and extends along the direction from top to bottom, the cross-sectional area of the tapered structure gradually decreases.

2. A mixing guide with ceramic bushing insert according to claim 1 wherein said taper of said tapered structure is 20 °.

3. The mixing guide with a ceramic bushing inner liner according to claim 1, wherein said mixing shaft at the upper end of said stepped portion is provided with a tapered adapter sleeve, and the cross-sectional area of said tapered adapter sleeve is gradually increased in a top-to-bottom direction.

4. The mixing guide with ceramic bushing liner of claim 1 wherein said end cap has a groove in the inner sidewall and said dynamic seal ring is located in said groove.