CN219596507U - Stirring shaft fixing seat and stirrer - Google Patents

Abstract

The utility model relates to the technical field of stirring, in particular to a stirring shaft fixing seat and a stirrer, wherein the stirring shaft fixing seat comprises a supporting frame and a fixing ring which are fixedly connected, a wear-resistant sleeve is fixedly connected to the inner surface of the fixing ring, a protecting sleeve is arranged on the inner side of the wear-resistant sleeve and is rotationally connected with the wear-resistant sleeve, the protecting sleeve is fixedly connected with the stirring shaft, the bottom of the fixing ring is fixedly provided with a wear-resistant ring, the wear-resistant ring is coaxial with the fixing ring, the inner diameter of the wear-resistant ring is smaller than that of the fixing ring, the wear-resistant sleeve is fixedly connected with the inner side of the fixing ring, the protecting sleeve is fixedly sleeved on the outer side of the tail end of the stirring shaft, and the wear-resistant sleeve and the protecting sleeve are in relative rotational contact during stirring so as to prevent the stirring shaft and the fixing seat body from being damaged in friction and generating impurities to pollute fluid in the stirrer.

Description

Stirring shaft fixing seat and stirrer

Technical Field

The utility model relates to the technical field of stirring, in particular to a stirring shaft fixing seat and a stirrer.

Background

In order to ensure uniformity of fluid, the fluid needs to be stirred by the stirrer so as to uniformly mix the fluid at each corner in the stirrer, the existing stirrer is usually driven by a motor, one end of a stirring shaft is connected with an output end of a driving device so that the driving device drives the stirring shaft to rotate, in some large-sized stirrers, the length of the stirring shaft is longer, and meanwhile, because the volume of fluid in the stirrer is larger, the resistance of the tail end of the stirring shaft is larger to generate swinging, therefore, in the large-sized stirrer, a fixing seat is required to be arranged at the tail end of the stirrer so as to prevent the stirring shaft from swinging.

The existing stirring shaft fixing seat is generally provided with a sleeve in the fixing seat, in the using process, the sleeve is rubbed off due to long-time friction with the sleeve, and after the sleeve is rubbed off, the stirring shaft is rubbed with the fixing seat body to generate impurities so as to pollute fluid.

In view of the above problems, no effective technical solution exists at present.

Disclosure of Invention

The utility model aims to provide a stirring shaft fixing seat and a stirrer, which aim to prevent impurity pollution fluid generated by continuous friction after a sleeve is worn off during stirring of a stirring shaft.

In a first aspect, the utility model provides a stirring shaft fixing seat, which is used for fixing the tail end of a stirring shaft and preventing the tail end of the stirring shaft from swinging, and comprises a supporting frame and a fixing ring which are fixedly connected, wherein a wear-resistant sleeve is fixedly connected to the inner surface of the fixing ring, a protecting sleeve is arranged on the inner side of the wear-resistant sleeve and is rotationally connected with the wear-resistant sleeve, the protecting sleeve is fixedly connected with the stirring shaft, a wear-resistant ring is fixedly arranged at the bottom of the fixing ring, and the wear-resistant ring is coaxial with the fixing ring and has an inner diameter smaller than that of the fixing ring.

According to the stirring shaft fixing seat, the wear-resistant sleeve is fixedly connected to the inner side of the fixing ring, the protective sleeve is fixedly sleeved on the outer side of the tail end of the stirring shaft, and the wear-resistant sleeve and the protective sleeve are in relative rotation contact during stirring, so that friction damage of the stirring shaft and the fixing seat body is prevented, impurities are generated to pollute fluid in the stirring device, in addition, the wear-resistant ring is fixedly arranged at the bottom of the fixing ring, the inner diameter of the wear-resistant ring is smaller than that of the fixing ring, when the wear-resistant sleeve is worn to cause swinging inclination of the stirring shaft, the tail end of the stirring shaft is firstly in contact with the wear-resistant ring to be in friction with the fixing ring, and the stirring shaft is prevented from being in friction with the stirring shaft fixing seat body to generate impurities to pollute fluid in the stirring device.

Furthermore, the inner side of the bottom of the fixed ring is provided with the groove for installing the wear-resistant ring, and the wear-resistant ring is fixedly installed in the groove through bolts.

According to the utility model, the groove is formed in the inner side of the bottom of the fixed ring, and the wear-resistant ring is fixedly arranged in the groove, so that the stirring shaft is preferentially contacted with the wear-resistant ring after the wear-resistant sleeve is worn off, the stirring shaft is enabled to rub the wear-resistant ring, and the stirring shaft is prevented from rubbing the fixed ring.

Further, according to the stirring shaft fixing seat provided by the utility model, the wear-resistant ring is made of titanium.

According to the utility model, titanium is selected as a material of the wear-resistant ring, so that impurities generated when the stirring shaft rubs the wear-resistant ring cannot pollute fluid in the stirrer.

Further, the stirring shaft fixing seat provided by the utility model has the advantage that the top of the protective sleeve is provided with the limiting boss.

Further, the stirring shaft fixing seat provided by the utility model has the advantage that the protective sleeve is fixedly connected with the stirring shaft through the bolts.

Further, according to the stirring shaft fixing seat provided by the utility model, the top surface of the fixing ring is provided with the limiting groove, and the top of the wear-resistant sleeve is provided with the boss corresponding to the limiting groove.

According to the utility model, the top surface of the fixed ring is provided with the limiting groove, and the top of the wear-resistant sleeve is provided with the boss corresponding to the limiting groove, so that the displacement of the wear-resistant sleeve is limited, and the wear-resistant sleeve is prevented from falling off.

Further, the fixed seat of the stirring shaft is provided, and the fixed ring is fixedly connected with the wear-resistant sleeve through bolts.

Further, according to the stirring shaft fixing seat provided by the utility model, the wear-resistant sleeve is made of PTFE.

Furthermore, the inner surface of the protective sleeve is in clearance fit with the outer surface of the stirring shaft, the outer surface of the protective sleeve is in clearance fit with the inner surface of the wear-resistant sleeve, and the outer surface of the wear-resistant sleeve is in transition fit with the inner surface of the fixing ring.

In a second aspect, the utility model provides a stirrer, which is used for stirring fluid in the stirrer, and comprises a stirring tank, a stirring shaft, a driving device, a stirring shaft fixing seat, a supporting frame and a fixing ring, wherein the driving device is fixedly arranged at the top of the stirring tank, the output end of the driving device is connected with the stirring shaft, the stirring shaft fixing seat is fixedly arranged at the bottom of an inner cavity of the stirring tank, the supporting frame and the fixing ring are fixedly connected with the stirring shaft fixing seat, the inner surface of the fixing ring is fixedly connected with a wear-resistant sleeve, the inner side of the wear-resistant sleeve is provided with a protective sleeve, the protective sleeve is rotationally connected with the wear-resistant sleeve, the protective sleeve is fixedly connected with the stirring shaft, the bottom of the fixing ring is fixedly provided with a wear-resistant ring, the wear-resistant ring is coaxial with the fixing ring, and the inner diameter of the wear-resistant ring is smaller than the inner diameter of the fixing ring.

According to the stirrer provided by the utility model, the stirring shaft fixing seat is arranged at the bottom of the inner cavity of the stirrer, the wear-resistant sleeve is fixedly connected with the inner side of the fixing ring of the stirring shaft fixing seat, and the protective sleeve is fixedly sleeved on the outer side of the tail end of the stirring shaft, so that the wear-resistant sleeve and the protective sleeve are in relative rotation contact during stirring, the stirring shaft and the fixing seat body are prevented from being damaged in friction and generating impurities to pollute fluid in the stirrer, in addition, the wear-resistant ring is fixedly arranged at the bottom of the fixing ring, the inner diameter of the wear-resistant ring is smaller than that of the fixing ring, and when the wear-resistant sleeve is worn to cause the stirring shaft to swing and incline, the tail end of the stirring shaft is firstly in contact with the wear-resistant ring to not directly rub the fixing ring, so that the stirring shaft and the stirring shaft fixing seat body are further prevented from rubbing to generate impurities to pollute fluid in the stirrer.

According to the stirring shaft fixing seat and the stirrer, the wear-resistant sleeve is fixedly connected to the inner side of the fixing ring of the stirring shaft fixing seat, and the protective sleeve is fixedly sleeved on the outer side of the tail end of the stirring shaft, so that the wear-resistant sleeve and the protective sleeve are in relative rotation contact during stirring, friction damage of the stirring shaft and the fixing seat body is prevented, impurities are generated to pollute fluid in the stirrer, in addition, the wear-resistant ring is fixedly arranged at the bottom of the fixing ring, the inner diameter of the wear-resistant ring is smaller than that of the fixing ring, and when the wear-resistant sleeve is worn to cause the stirring shaft to swing and incline, the tail end of the stirring shaft is firstly in contact with the wear-resistant ring to not directly rub the fixing ring, and therefore the stirring shaft and the stirring shaft fixing seat body are further prevented from rubbing to generate impurities to pollute fluid in the stirrer.

Drawings

Fig. 1 is a schematic front view of a stirring shaft fixing seat according to an embodiment of the present utility model.

Fig. 2 is a schematic top view of a structure of a stirring shaft fixing seat provided by an embodiment of the utility model.

Fig. 3 is a schematic structural diagram of a stirrer according to an embodiment of the present utility model.

Description of the reference numerals: 1. a support frame; 2. a fixing ring; 3. a wear-resistant sleeve; 4. a protective sleeve; 5. a wear ring; 6. a stirring shaft; 7. a stirring tank; 8. a driving device.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present utility model, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.

Generally, in a large-scale stirrer, a driving device is usually arranged at the top of a stirring tank to drive a stirring shaft to rotate, and because the length of the stirring shaft is longer and the volume of fluid in the stirring tank is larger, the resistance of the tail end of the stirring shaft is larger to generate swinging, the stirring shaft and the driving device are easy to damage after long-time work, therefore, a stirring shaft fixing seat is required to be arranged at the bottom surface of the inside of the stirring tank to prevent the stirring shaft from greatly swinging, however, the stirring shaft still rubs the fixing seat, and in the friction process, when a sleeve is worn off, the stirring shaft rubs with the fixing seat body to generate impurity pollution fluid.

In a first aspect, referring to fig. 1 and fig. 2, fig. 1 is a schematic front view of a structure of a stirring shaft fixing seat provided in an embodiment of the present utility model, fig. 2 is a schematic top view of a structure of a stirring shaft fixing seat provided in an embodiment of the present utility model, and one stirring shaft fixing seat shown in fig. 1 and fig. 2 is used for fixing a tail end of a stirring shaft 6 and preventing the tail end of the stirring shaft 6 from swinging, and includes a supporting frame 1 and a fixing ring 2 which are fixedly connected, an abrasion-resistant sleeve 3 is fixedly connected to an inner surface of the fixing ring 2, a protective sleeve 4 is provided on an inner side of the abrasion-resistant sleeve 3, the protective sleeve 4 is rotatably connected with the abrasion-resistant sleeve 3, the protective sleeve 4 is fixedly connected with the stirring shaft 6, an abrasion-resistant ring 5 is fixedly mounted on a bottom of the fixing ring 2, and an inner diameter of the abrasion-resistant ring 5 is coaxial with the fixing ring 2 and is smaller than an inner diameter of the fixing ring 2.

Optionally, in some embodiments, the support frame 1 and the fixing ring 2 are integrally formed, in some embodiments, the support frame 1 and the fixing ring 2 are detachably connected by bolts, preferably, in this embodiment, the support frame 1 and the fixing ring 2 are integrally formed because the support frame 1 and the fixing ring 2 do not need to be disassembled.

Optionally, in some embodiments, the support frame 1 includes a plurality of foot frames, preferably, in this embodiment, under the premise of guaranteeing stable installation of the stirring shaft fixing seat, the number of foot frames is three, so that stable installation of the stirring shaft fixing seat is guaranteed, and meanwhile cost is saved.

Specifically, in the present embodiment, the fixing ring 2, the wear-resistant sleeve 3, the protective sheath 4, and the stirring shaft 6 are coaxially disposed.

According to the stirring shaft fixing seat provided by the utility model, the wear-resistant sleeve 3 is fixedly connected to the inner side of the fixing ring 2 of the stirring shaft fixing seat, the protective sleeve 4 is fixedly sleeved on the outer side of the tail end of the stirring shaft 6, and the wear-resistant sleeve 3 and the protective sleeve 4 are in relative rotation contact during stirring, so that friction damage of the stirring shaft 6 and the fixing ring 2 is prevented, impurities are generated to pollute fluid in a stirrer, in addition, the wear-resistant ring 5 is fixedly arranged at the bottom of the fixing ring 2, the inner diameter of the wear-resistant ring 5 is smaller than the inner diameter of the fixing ring 2, and when the wear-resistant sleeve 3 is worn to cause the stirring shaft 6 to swing and incline, the tail end of the stirring shaft 6 is firstly in contact with the wear-resistant ring 5, and cannot directly rub the fixing ring 2, so that the stirring shaft 6 and the fixing ring 2 are further prevented from rubbing to generate impurities to pollute fluid in the stirrer.

In some preferred embodiments, the inner side of the bottom of the fixing ring 2 is provided with a groove for mounting the wear ring 5, in which groove the wear ring 5 is fixedly mounted by means of bolts.

Specifically, in the existing stirring shaft fixing seat, the protective sleeve 4 is only arranged outside the stirring shaft 6, the protective sleeve 4 continuously rubs the wear-resistant sleeve 3 in the using process, after long-time work, when the wear-resistant sleeve 3 is worn off, the protective sleeve 4 directly rubs with the fixed ring 2, and fluid in the stirrer is polluted by metal scraps in the friction process, so in the embodiment, a groove is formed at the bottom of the fixed ring 2 and is used for installing the wear-resistant ring 5, when the protective sleeve 4 wears off the wear-resistant sleeve 3, the protective sleeve 4 contacts with the wear-resistant ring 5 and rubs, and then the stirring shaft 6 cannot directly rub with the fixed ring 2.

Preferably, in this embodiment, in order to reduce the difficulty of machining the groove and the difficulty of installing the wear-resistant ring 5, the bottom of the fixing ring 2 is provided with a groove facing the inner side and the bottom side, and after the wear-resistant ring 5 is installed in the groove, the bottom surface of the wear-resistant ring 5 is flush with the bottom surface of the fixing ring 2 or lower than the bottom surface of the fixing ring 2.

In some preferred embodiments, the wear ring 5 is made of titanium.

Optionally, in some embodiments, in order to prevent the fluid from being polluted by the scraps worn by the stirring shaft 6 and the wear-resistant ring 5, the wear-resistant ring 5 may be made of a material that is wear-resistant and does not pollute the fluid, and in this embodiment, the wear-resistant ring 5 is preferably made of titanium.

In some preferred embodiments, the protective sleeve 4 has a limit boss on top.

Specifically, the protecting sleeve 4 is sleeved on the outer surface of the tail end of the stirring shaft 6, and is used for protecting the stirring shaft 6 and preventing the shaft body of the stirring shaft 6 from being worn, so that the protecting sleeve 4 needs to be tightly connected with the stirring shaft 6, in some embodiments, the protecting sleeve 4 is of a straight-barrel-shaped annular structure, vibration generated by swinging of the stirring shaft 6 can cause the protecting sleeve 4 to slide relative to the stirring shaft 6 during stirring, so that in order to prevent the protecting sleeve 4 from sliding off the stirring shaft 6, preferably, in the example, a limiting boss is arranged at the top of the protecting sleeve 4, and when the protecting sleeve 4 slides down, the limiting boss is abutted against the top of the wear-resistant sleeve 3, so that the protecting sleeve 4 is prevented from sliding off.

In some preferred embodiments, the protective sleeve 4 is fixedly connected to the stirring shaft 6 by means of bolts.

Specifically, during the stirring process of the stirring shaft 6, the vibration generated by the stirring shaft 6 may cause the protective sleeve 4 to slide upwards, and when the protective sleeve 4 slides upwards, the end of the stirring shaft 6 will be exposed, so that the shaft body of the stirring shaft 6 may rub against the wear-resistant sleeve 3 when the stirring shaft 6 swings, thereby wearing the stirring shaft 6, and thus, in this embodiment, threaded holes are formed in the side walls of the protective sleeve 4 and the stirring shaft 6, and the protective sleeve 4 is fixedly connected with the stirring shaft 6 through bolts.

In some preferred embodiments, the top surface of the fixed ring 2 is provided with a limit groove, and the top of the wear sleeve 3 is provided with a boss corresponding to the limit groove.

Optionally, in some embodiments, the fixing ring 2 and the wear-resistant sleeve 3 are in a cylindrical structure, the fixing ring 2 is sleeved on the outer surface of the wear-resistant sleeve 3, during the stirring process, the wear-resistant sleeve 3 may slide down on the inner surface of the fixing ring 2 due to continuous stirring of the stirring shaft 6, so that, preferably, in order to prevent the wear-resistant sleeve 3 from sliding down, in this embodiment, a limit groove is formed on the top surface of the fixing ring 2, and a boss corresponding to the limit groove is formed on the top of the wear-resistant sleeve 3.

In some preferred embodiments, the securing ring 2 is fixedly connected to the wear sleeve 3 by bolts.

Specifically, the wear-resistant sleeve 3 is matched with the limit groove on the top surface of the fixed ring 2 through the boss on the top surface so as to prevent the wear-resistant sleeve 3 from sliding, and in the stirring process, vibration generated by continuous swinging of the stirring shaft 6 still can be transmitted to the wear-resistant sleeve 3 to enable the wear-resistant sleeve 3 to slide vertically, so that, in order to prevent relative sliding between the wear-resistant sleeve 3 and the fixed ring 2, preferably, in the embodiment, threaded holes with the same size are formed in the side walls of the wear-resistant sleeve 3 and the fixed ring 2, the fixed connection between the fixed ring 2 and the wear-resistant sleeve 3 is realized by tightening bolts, and therefore, the relative sliding between the wear-resistant sleeve 3 and the fixed ring 2 is avoided.

In some preferred embodiments, the wear sleeve 3 is made of PTFE.

Specifically, since the stirring shaft 6 is fixedly connected with the protective sleeve 4, the stirring shaft 6 rotates to drive the protective sleeve 4 to rotate during stirring, so that friction will continuously occur between the protective sleeve 4 and the wear-resistant sleeve 3 to generate a large amount of heat, and therefore, the wear-resistant sleeve 3 is made of wear-resistant, corrosion-resistant and high-temperature-resistant materials, preferably, in the embodiment, the wear-resistant sleeve 3 is made of PTFE.

In some preferred embodiments, the inner surface of the protective sleeve 4 is in a clearance fit with the outer surface of the stirring shaft 6, the outer surface of the protective sleeve 4 is in a clearance fit with the inner surface of the wear sleeve 3, and the outer surface of the wear sleeve 3 is in a transition fit with the inner surface of the retaining ring 2.

Specifically, in this embodiment, friction is generated between the protective sleeve 4 and the wear-resistant sleeve 3, so, in order to prevent excessive friction force and reduce the service life of the wear-resistant sleeve 3, so in this embodiment, clearance fit is selected between the protective sleeve 4 and the wear-resistant sleeve 3, in order to facilitate mounting of the protective sleeve 4 on the stirring shaft 6, in this embodiment, clearance fit is also provided between the stirring shaft 6 and the protective sleeve 4, and in order to ensure mounting accuracy between the wear-resistant sleeve 3 and the fixing ring 2 and facilitate dismounting of the wear-resistant sleeve 3, in this embodiment, transition fit is provided between the wear-resistant sleeve 3 and the fixing ring 2.

In a second aspect, referring to fig. 3, fig. 3 is a schematic structural diagram of a stirrer provided by an embodiment of the present utility model, where the stirrer shown in fig. 3 is used for stirring fluid in the stirrer, and includes a stirring tank 7, a stirring shaft 6, a driving device 8, where the driving device 8 is fixedly installed on the top of the stirring tank 7, an output end of the driving device 8 is connected with the stirring shaft 6, the stirrer further includes a stirring shaft fixing seat, the stirring shaft fixing seat is fixedly installed on the bottom of an inner cavity of the stirring tank 7, the stirring shaft fixing seat includes a supporting frame 1 and a fixing ring 2 which are fixedly connected, an abrasion-resistant sleeve 3 is fixedly connected to an inner surface of the fixing ring 2, a protecting sleeve 4 is nested inside the abrasion-resistant sleeve, the protecting sleeve 4 is fixedly connected with the stirring shaft 6, and an abrasion-resistant ring 5 is fixedly installed on the bottom of the fixing ring 2.

According to the stirrer provided by the utility model, the stirring shaft fixing seat is arranged at the bottom of the inner cavity of the stirring tank 7, the wear-resistant sleeve 3 is fixedly connected to the inner side of the fixing ring 2 of the stirring shaft fixing seat, and the protective sleeve 4 is fixedly sleeved on the outer side of the tail end of the stirring shaft 6, so that the wear-resistant sleeve 3 and the protective sleeve 4 are in relative rotation contact during stirring, the friction damage of the stirring shaft 6 and the fixing ring 2 is prevented, impurities are generated to pollute fluid in the stirrer, in addition, the wear-resistant ring 5 is fixedly arranged at the bottom of the fixing ring 2, the inner diameter of the wear-resistant ring 5 is smaller than the inner diameter of the fixing ring 2, and when the wear-resistant sleeve 3 is worn to cause the stirring shaft 6 to swing and incline, the tail end of the stirring shaft 6 is firstly in contact with the wear-resistant ring 5 to be in friction with the wear-resistant ring 5, and the fixing ring 2 is not directly rubbed, and therefore the friction between the stirring shaft 6 and the fixing ring 2 is further prevented from being rubbed to generate impurities to pollute fluid in the stirrer.

As can be seen from the above, according to the stirring shaft fixing seat and the stirrer provided by the utility model, the wear-resistant sleeve 3 is fixedly connected to the inner side of the fixed ring 2 of the stirring shaft fixing seat, and the protective sleeve 4 is fixedly sleeved on the outer side of the tail end of the stirring shaft 6, so that the wear-resistant sleeve 3 and the protective sleeve 4 are in relative rotation contact during stirring, thereby preventing the friction damage of the stirring shaft 6 and the fixed ring 2 and the generation of impurities to pollute the fluid in the stirrer, in addition, the wear-resistant ring 5 is fixedly arranged at the bottom of the fixed ring 2, the inner diameter of the wear-resistant ring 5 is smaller than the inner diameter of the fixed ring 2, and when the wear-resistant sleeve 3 is worn to cause the swinging inclination of the stirring shaft 6, the tail end of the stirring shaft 6 is firstly in contact with the wear-resistant ring 5 and cannot directly rub the fixed ring 2, so that the friction between the stirring shaft 6 and the fixed ring 2 is further prevented from generating the impurity to pollute the fluid in the stirrer.

In this description of the novel form, it is to be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. are directional or positional relationships as indicated on the basis of the drawings, merely to facilitate describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The above disclosure provides many different embodiments, or examples, for implementing different structures of the utility model. The foregoing description of specific example components and arrangements has been presented to simplify the present disclosure. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

In the description of the present specification, reference to the terms "one embodiment," "certain embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

What has been described above is merely some embodiments of the present utility model. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model.

Claims (10)

1. The utility model provides a (mixing) shaft fixing base for fixed (mixing) shaft (6) is terminal, prevents (mixing) shaft (6) terminal swing, support frame (1) and solid fixed ring (2) including fixed connection, a serial communication port, gu fixed ring (2) internal surface fixedly connected with wear-resisting cover (3), the inboard of wear-resisting cover (3) is provided with protective sheath (4), protective sheath (4) with wear-resisting cover (3) rotate to be connected, protective sheath (4) with (mixing) shaft (6) fixed connection, gu fixed ring (2) bottom fixed mounting has antifriction ring (5), antifriction ring (5) with gu fixed ring (2) coaxial just the internal diameter of antifriction ring (5) is less than the internal diameter of gu fixed ring (2).

2. The stirring shaft fixing base according to claim 1, characterized in that a groove for installing the wear-resistant ring (5) is formed in the inner side of the bottom of the fixing ring (2), and the wear-resistant ring (5) is fixedly installed in the groove through bolts.

3. Stirring shaft fixing base according to claim 1, characterized in that the wear-resistant ring (5) is made of titanium.

4. The stirring shaft fixing base according to claim 1, characterized in that the top of the protective sleeve (4) is provided with a limiting boss.

5. The stirring shaft fixing base according to claim 1, characterized in that the protective sleeve (4) is fixedly connected with the stirring shaft (6) by bolts.

6. The stirring shaft fixing seat according to claim 1, wherein a limiting groove is formed in the top surface of the fixing ring (2), and a boss corresponding to the limiting groove is arranged at the top of the wear-resistant sleeve (3).

7. The stirring shaft fixing base according to claim 1, characterized in that the fixing ring (2) is fixedly connected with the wear-resistant sleeve (3) through bolts.

8. Stirring shaft fixing base according to claim 1, characterized in that the wear-resistant sleeve (3) is made of PTFE.

9. The stirring shaft fixing base according to claim 1, characterized in that the inner surface of the protective sleeve (4) is in clearance fit with the outer surface of the stirring shaft (6), the outer surface of the protective sleeve (4) is in clearance fit with the inner surface of the wear-resistant sleeve (3), and the outer surface of the wear-resistant sleeve (3) is in transition fit with the inner surface of the fixing ring (2).

10. The utility model provides a stirrer for stir the fluid in the agitator, including agitator tank (7), (mixing) shaft (6), drive arrangement (8) fixed mounting is in agitator tank (7) top, the output of drive arrangement (8) with (mixing) shaft (6) are connected, a serial communication port, agitator still includes (mixing) shaft fixing base, (mixing) shaft fixing base fixed mounting is in the bottom of agitator tank (7) inner chamber, (mixing) shaft fixing base includes fixedly connected's support frame (1) and solid fixed ring (2), gu fixed ring (2) internal surface fixedly connected with wear-resisting cover (3), the inboard nestification of wear-resisting cover (3) has protective sheath (4), protective sheath (4) with (mixing) shaft (6) fixed connection, gu fixed ring (2) bottom fixed mounting has wear-resisting ring (5).